A high-reliability filtering electrical connector socket or plug

Abstract

The present invention discloses a high-reliability filter electrical connector socket or plug, comprising a metal housing, an insulator, a tubular ceramic capacitor, a contact, a metal clamping member, and a metal grounding member. The metal clamping member comprises an annular metal clamping plate, the outer peripheral edge of which is circumferentially provided with a plurality of external clamping claws, and the edge of the hole wall of the central through hole of the metal clamping plate is circumferentially provided with a plurality of internal clamping claws. The metal grounding member comprises a metal grounding plate, the metal grounding plate is provided with a plurality of grounding plate through holes, and the hole wall edge of each grounding plate through hole is circumferentially provided with a plurality of internal grounding plate clamping claws, and the outer peripheral edge of the metal grounding plate is circumferentially provided with a plurality of external clamps. A plurality of tubular ceramic capacitors are respectively passed through the plurality of grounding plate through holes. The present invention adopts a clamping claw-type elastic connection structure, which avoids the problems of traditional welding methods such as the easy cracking and failure of tubular ceramic capacitors and the residual flux inside the tubular ceramic capacitors, thereby improving product reliability.

Description

Technical Field

[0001] The present invention relates to a filtering electrical connector, in particular to a high-reliability filtering electrical connector socket or plug. Background Art

[0002] Filtered electrical connectors are a design improvement over conventional electrical connectors, incorporating filtering circuitry. They not only facilitate electrical connections and signal transmission between devices, components, and systems, but also filter out electromagnetic interference signals traveling along the wires, addressing electromagnetic compatibility issues within the system. Filtered electrical connectors are highly effective at filtering high-frequency interference signals and are compatible with the vast majority of conventional electrical connectors currently on the market. Consequently, they are widely used in military equipment such as aerospace, aviation, navigation, and radar, as well as in civilian products such as computers, communications, and various precision instruments.

[0003] Tubular ceramic capacitors are a commonly used filter capacitor component in the design and manufacture of filter electrical connectors. Figure 1 and Figure 2 As shown, it includes a bare porcelain tube 4, an inner electrode 3 provided on the inner wall of the bare porcelain tube 4, and an outer electrode 2 provided on the outer wall of the bare porcelain tube 4. The inner electrode 3 and the outer electrode 2 are electrically isolated by a suitable insulation distance. An annular solder resist strip 1 is provided on the outer wall of the bare porcelain tube 4 near both ends. Preferably, the middle part of the inner electrode 3 is separated by the bare porcelain tube 4. When used, the two sections of the inner electrode 3 are respectively connected to the contact pieces.

[0004] Tubular ceramic capacitors can be used to manufacture C-type, L-type and π-type filter circuits, and their corresponding electrical connectors are C-type filter electrical connectors, L-type filter electrical connectors, and π-type filter electrical connectors. Taking the π-type filter electrical connector using tubular ceramic capacitors as an example, the internal structure of its socket or plug (usually a socket) is shown in Figure 3 and Figure 4 As shown, the socket or plug of the filter electrical connector includes a housing 6, a contact 5, a tubular ceramic capacitor 9, a magnetic bead 10, a fixing ring 8, a grounding plate 12 and an epoxy resin 7, wherein the housing 6, the contact 5, the fixing ring 8 and the grounding plate 12 are made of metal. When processing the filter electrical connector with conventional technology, first, the tubular ceramic capacitor 9, the magnetic bead 10, the fixing ring 8 and the contact 5 are welded together to form a filter single pin. During welding, the fixing ring 8 with a boss structure is inserted into the tubular ceramic capacitor 9, and the contact 5 passes through the center hole of the fixing ring 8 and the inner hole of the magnetic bead 10 and is connected to the inner electrode of the fixing ring 8 and the tubular ceramic capacitor 9 (see Figure 2The inner electrode 3) is welded together to form an accumulated solder 11 at the welding point. The fixing ring 8 can ensure the coaxiality of the tubular ceramic capacitor 9 and the contact 5 on the one hand, and can realize the electrical connection between the inner electrode 3 of the tubular ceramic capacitor 9 and the contact 5 on the other hand; then, multiple filter single pins and the grounding plate 12 are welded together to form an accumulated solder 11 at the welding point to form a filter assembly. After welding, the outer electrode 2 of the tubular ceramic capacitor 9 is electrically connected to the grounding plate 12; then, the outer ring of the grounding plate 12 is bonded to the shell 6 with a conductive glue 13 to realize electrical conduction between the outer electrode 2 of the tubular ceramic capacitor 9 and the shell 6; finally, epoxy resin 7 is poured inside the shell 6 to fix and protect the internal filter assembly, thereby completing the assembly of the entire electrical connector socket or plug.

[0005] The above-mentioned traditional filter electrical connectors manufactured using tubular ceramic capacitors have the following defects:

[0006] 1. When using a fixing ring to weld a tubular ceramic capacitor, there is a large difference in thermal expansion coefficient between the metal fixing ring and the tubular ceramic capacitor. The mechanical stress generated by the different deformation between the two during welding can easily cause the tubular ceramic capacitor to crack, and there is a risk of short circuit between the internal and external electrodes of the tubular ceramic capacitor. After welding, the fixing ring and solder will seal the gap at both ends of the tubular ceramic capacitor, forming a closed cavity inside the tubular ceramic capacitor. The solder used during welding contains flux, and some of the flux will remain in the cavity and cannot be removed. The residual flux is easily affected by moisture and high temperature during the subsequent use of the filter, and its insulation resistance gradually decreases, resulting in a decrease in the insulation resistance of the filter electrical connector, and there may be a risk of short circuit failure.

[0007] 2. When soldering the outer electrodes of the tubular ceramic capacitor to the metal ground plate, there is a large difference in the thermal expansion coefficient between the ground plate and the tubular ceramic capacitor, and the tubular ceramic capacitor is prone to cracking during welding.

[0008] 3. When epoxy resin is used to pot the inside of the shell to protect the filter assembly, the position of each contact is fixed by the epoxy resin. When plugging with the mating connector, the position of the contact cannot be fine-tuned. For filter electrical connectors with a large number of contacts, there is a situation where the plugging and unplugging force is too large, making plugging and unplugging difficult. After multiple plugging and unplugging, the contact resistance between the contacts is easily increased or even the connection fails. Summary of the Invention

[0009] The object of the present invention is to provide a high-reliability filtering electrical connector socket or plug using a non-welding connection in order to solve the above-mentioned problem.

[0010] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0011] A high-reliability filtering electrical connector socket or plug comprises a metal shell, an insulator, a tubular ceramic capacitor, a contact, a metal clamping member and a metal grounding member, wherein the insulator is entirely or partially placed in the metal shell, the tubular ceramic capacitor comprises a bare ceramic tube, an inner electrode provided on the inner wall of the bare ceramic tube, and an outer electrode provided on the outer wall of the bare ceramic tube, a plurality of tubular ceramic capacitors respectively pass through a plurality of through holes in the insulator, a plurality of strip-shaped contacts respectively pass through a plurality of central through holes of the tubular ceramic capacitors, the metal clamping member comprises an annular metal clamping plate, the outer peripheral edge of the metal clamping plate is provided with a plurality of external clamping claws along the circumferential direction, the tops of the external clamping claws are inclined away from the outer periphery of the metal clamping plate, the hole wall edge of the central through hole of the metal clamping plate is provided with a plurality of internal clamping claws along the circumferential direction, the tops of the internal clamping claws are inclined toward the center line of the central through hole of the metal clamping plate, each metal clamping plate is placed in the central through hole of the corresponding tubular ceramic capacitor, and the tops of all the external clamping claws on each metal clamping plate are inclined in the direction of the center line of the central through hole of the metal clamping plate. The tops of all the inner claws of the clamping plate on each metal clamping plate are in close contact with the outer wall of the corresponding contact member; the metal grounding member includes a metal grounding plate, which is provided with a plurality of grounding plate through-holes, and the hole wall edge of each grounding plate through-hole is provided with a plurality of grounding plate inner claws along the circumferential direction, and the tops of the grounding plate inner claws are inclined in a direction close to the center line of the corresponding grounding plate through-hole; the outer peripheral edge of the metal grounding plate is provided with a plurality of outer cards along the circumferential direction, and the tops of the outer cards are inclined in a direction away from the outer periphery of the metal grounding plate; the metal grounding plate is placed in the metal shell, and a plurality of the tubular ceramic capacitors are respectively passed through the plurality of corresponding grounding plate through-holes, and the tops of all the inner claws of the grounding plate corresponding to each grounding plate through-hole are in close contact with the outer electrode of the corresponding tubular ceramic capacitor, and the tops of all the outer cards are in contact with the inner wall of the metal shell.

[0012] Preferably, in order to facilitate the connection of the contact piece and the tubular ceramic capacitor through the metal clip and to enable the contact piece to have a certain fine-tuning space and facilitate processing and assembly, the contact piece includes a wiring piece and a pin, the insulator includes a first insulator and a second insulator, the first end of the two ends of the wiring piece is provided with a connecting hole, the first end of the two ends of the pin is inserted into the connecting hole and crimped, a plurality of the pins pass through a plurality of central through holes of the tubular ceramic capacitors and the corresponding central through holes of the metal clip plate, a protruding and annular wiring piece boss is provided on the outer wall of the wiring piece near the first end, a protruding and annular pin boss is provided at the middle section of the pin near the second end of the two ends, a part of the first insulator and the entirety of the second insulator are placed in the metal shell, and the first end of the two ends of the first insulator is provided with a protruding and annular pin boss. The first end of the first insulator is close to the first end of the second insulator, and each through-hole of the first insulator is provided with a first annular step at a position close to the second end of the first insulator. Each of the wiring member bosses is placed in the corresponding through-hole of the first insulator and contacts the corresponding first annular step. Each of the wiring member bosses also contacts one end of the corresponding tubular ceramic capacitor. Each through-hole of the second insulator is provided with a second annular step at a position close to the second end of the second insulator. Each of the pin bosses is placed in the corresponding through-hole of the second insulator and contacts the corresponding second annular step. Each of the pin bosses also contacts the other end of the corresponding tubular ceramic capacitor. The metal ground plate is placed between the first end of the first insulator and the first end of the second insulator.

[0013] Preferably, in order to facilitate processing and assembly, the metal shell includes a first metal shell and a second metal shell, the first end of the first metal shell and the first end of the second metal shell are riveted to each other, the part of the first insulator close to the first end and the second insulator are both placed in the first metal shell, an outward protruding convex ring is provided on the outer wall of the first insulator close to the first end and the convex ring is blocked by the annular wall of the second end of the first metal shell, the aperture of the first end of the second metal shell is smaller than the aperture of the first end of the first metal shell, the second end of the second insulator is blocked by the first end of the second metal shell, and the second end of the pin is placed in the second metal shell and close to the second end of the second metal shell.

[0014] Preferably, in order to achieve a more reliable conductive connection, two metal clips are installed in each tubular ceramic capacitor, and the two metal clips are respectively located near the two ends of the tubular ceramic capacitor and are respectively connected to the corresponding positions near the two ends of the pins.

[0015] Preferably, in order to take into account both good elasticity and sufficient strength, the outer clamping claw, the inner clamping claw of the clamping plate and the inner clamping claw of the grounding plate are all triangular with their tops being vertex angles, and the outer clamping claw is rectangular.

[0016] Preferably, in order to improve the strength, elasticity and electrical conductivity of the metal clamping member and the metal grounding member, the metal clamping member and the metal grounding member are both beryllium copper alloy members with gold-plated surfaces.

[0017] Preferably, to form a π-type filter circuit, each of the tubular ceramic capacitors is equipped with a magnetic bead, which is located between the inner electrode of the tubular ceramic capacitor and the outer wall of the corresponding contact. The magnetic bead here is the inductor in the π-type filter circuit.

[0018] The beneficial effects of the present invention are:

[0019] The present invention forms a fully mechanical connection structure by designing the connection between the tubular ceramic capacitor and the contact piece, the connection between the tubular ceramic capacitor and the metal grounding piece, and the connection between the metal grounding piece and the metal shell as claw-type elastic connection structures. This avoids the problems of easy cracking and failure of the tubular ceramic capacitor and residual flux in the internal closed space of the tubular ceramic capacitor in traditional welding methods, thereby improving product reliability. By providing an outwardly protruding boss on the contact piece and an annular step on the insulator, both reliable position limitation of the contact piece and fine-tuning space for the contact piece can be achieved. Moreover, since the elastic floating connection structure of the claw does not affect the reliability of the conductive connection, the position can be automatically adjusted when plugged into a corresponding plug or socket, so that the filter electrical connector has good plug-in and pull-out characteristics and the service life of the product is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the main view of the tubular ceramic capacitor;

[0021] Figure 2 It is the AA cross-sectional view in the main view of the tubular ceramic capacitor;

[0022] Figure 3 This is the main view of a traditional π-type filter electrical connector using a tubular ceramic capacitor;

[0023] Figure 4 This is an enlarged BB cross-sectional view of the main view of a traditional π-type filter electrical connector using a tubular ceramic capacitor;

[0024] Figure 5 This is a front cross-sectional view of the high-reliability filtering electrical connector socket or plug of the present invention;

[0025] Figure 6This is a three-dimensional diagram of the high-reliability filtering electrical connector socket or plug of the present invention with the insulator and metal shell removed;

[0026] Figure 7 It is a cross-sectional view of the connection structure between the contact piece of the high-reliability filtering electrical connector socket or plug and the tubular ceramic capacitor of the present invention;

[0027] Figure 8 It is a three-dimensional diagram of the metal clamping member of the high-reliability filtering electrical connector socket or plug of the present invention;

[0028] Figure 9 It is a three-dimensional diagram of the metal grounding member of the high-reliability filtering electrical connector socket or plug according to the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings:

[0030] like Figure 2 、 Figure 5-Figure 9As shown, the high-reliability filtering electrical connector socket or plug of the present invention includes a metal shell (see the first metal shell 17 and the second metal shell 22 below), an insulator (see the first insulator 16 and the second insulator 20 below), a tubular ceramic capacitor 9, a contact (see the wiring member 14 and the pin 21 below), a metal clamping member 23 and a metal grounding member 18. The insulator is fully or partially placed in the metal shell. The tubular ceramic capacitor 9 includes a bare porcelain tube 4 and an inner electrode 3 provided on the inner wall of the bare porcelain tube 4 and an outer electrode 2 provided on the outer wall of the bare porcelain tube. A plurality of tubular ceramic capacitors 9 pass through a plurality of the insulators. Through hole, multiple strip-shaped contact members respectively pass through the central through holes of multiple tubular ceramic capacitors 9, the metal clip 23 includes an annular metal clip plate 234, the outer peripheral edge of the metal clip plate 234 is provided with multiple outer claws 231 along the circumferential direction, the top of the outer claw 231 is inclined away from the outer peripheral direction of the metal clip plate 234, the hole wall edge of the central through hole 233 of the metal clip plate 234 is provided with multiple clip plate inner claws 232 along the circumferential direction, the top of the clip plate inner claw 232 is inclined toward the direction of the center line of the central through hole 233 of the metal clip plate 234, each metal clip plate 234 is placed on the corresponding tubular ceramic capacitor The top of all the outer claws 231 on each metal clamping plate 234 is in close contact with the inner electrode 3 of the corresponding tubular ceramic capacitor 9 in the central through hole of the capacitor 9, and each of the contact members passes through the central through hole 233 of the corresponding metal clamping plate 234. The top of all the inner claws 232 on each metal clamping plate 234 is in close contact with the outer wall of the corresponding contact member; the metal grounding member 18 includes a metal grounding plate 181, and a plurality of grounding plate through holes 182 are provided on the metal grounding plate 181. The hole edge of each grounding plate through hole 182 is circumferentially provided with a plurality of grounding plate inner claws 183. The grounding plate inner claws 183 are provided on the metal grounding plate 181. The top of 83 is inclined toward the center line of the corresponding grounding plate through hole 182, and a plurality of external cards 184 are provided along the circumferential direction of the outer edge of the metal grounding plate 181. The top of the external card 184 is inclined toward the peripheral direction away from the metal grounding plate 181. The metal grounding plate 181 is placed in the metal shell, and a plurality of tubular ceramic capacitors 9 respectively pass through a plurality of corresponding grounding plate through holes 182. The tops of all the grounding plate inner claws 183 corresponding to each grounding plate through hole 182 are in close contact with the outer electrode 2 of the corresponding tubular ceramic capacitor 9, and the tops of all the external cards 184 are in contact with the inner wall of the metal shell.

[0031] like Figure 2 、 Figure 5-Figure 9 As shown, the present invention also discloses the following multiple more specific structures. According to actual needs, the above structure can be superimposed and combined with one or more of the following specific structures to form a more optimized technical solution.

[0032] In order to facilitate the connection between the contact piece and the tubular ceramic capacitor 9 through the metal clamping piece 23 and to enable the contact piece to have a certain fine-tuning space and facilitate processing and assembly, the contact piece includes a terminal 14 and a pin 21. The insulator includes a first insulator 16 and a second insulator 20. The first end of the terminal 14 is provided with a connection hole (not marked in the figure). The first end of the pin 21 is inserted into the connection hole and crimped to achieve close contact. Multiple pins 21 pass through the central through holes of multiple tubular ceramic capacitors 9 and the corresponding central through holes 233 of the metal clamping plate 234. A protruding and annular terminal piece boss 15 is provided on the outer wall of the terminal 14 near the first end. A protruding and annular pin boss 19 is provided on the middle section of the pin 21 near the second end. A portion of the first insulator 16 and the entire second insulator 20 are placed in the metal shell. The first end of the first insulator 16 and the first end of the second insulator 20 are close to each other. Each through-hole of the first insulator 16 is provided with a first annular step (not labeled in the figure, meaning the through-hole is formed by connecting a large-diameter hole and a small-diameter hole, with an annular step formed at the connection). Each terminal boss 15 is positioned within the corresponding through-hole of the first insulator 16 and contacts the corresponding first annular step. Each terminal boss 15 also contacts one end of the corresponding tubular ceramic capacitor 9. Each through-hole of the second insulator 20 is provided with a second annular step (not labeled in the figure, meaning the through-hole is formed by connecting a large-diameter hole and a small-diameter hole, with an annular step formed at the connection). Each pin boss 19 is positioned within the corresponding through-hole of the second insulator 20 and contacts the corresponding second annular step. Each pin boss 19 also contacts the other end of the corresponding tubular ceramic capacitor 9. A metal grounding plate 181 is positioned between the first end of the first insulator 16 and the first end of the second insulator 20.

[0033] To facilitate processing and assembly, the metal shell includes a first metal shell 17 and a second metal shell 22. The first end of the first metal shell 17 and the first end of the second metal shell 22 are riveted to each other. The portion of the first insulator 16 close to the first end and the second insulator 20 are both placed in the first metal shell 17. An outwardly protruding convex ring (not marked in the figure) is provided on the outer wall of the first insulator 16 near the first end, and the convex ring is blocked by the annular wall of the second end of the first metal shell 17. The aperture of the first end of the second metal shell 22 is smaller than the aperture of the first end of the first metal shell 17. The second end of the second insulator 20 is blocked by the first end of the second metal shell 22. The second end of the pin 21 is placed in the second metal shell 22 and close to the second end of the second metal shell 22.

[0034] In order to achieve a more reliable conductive connection, two metal clips 23 are installed in each tubular ceramic capacitor 9. The two metal clips 23 are respectively located near the two ends of the tubular ceramic capacitor 9 and are respectively connected to the corresponding positions near the two ends of the pins 21.

[0035] In order to achieve both good elasticity and sufficient strength, the outer claw 231, the inner claw 232 of the clamping plate and the inner claw 183 of the grounding plate are all triangular with their tops being vertex angles, and the outer clamp 184 is rectangular.

[0036] In order to improve the strength, elasticity and electrical conductivity of the metal clamping member 23 and the metal grounding member 18 , the metal clamping member 23 and the metal grounding member 18 are both beryllium copper alloy members with gold-plated surfaces.

[0037] In order to form a π-type filter circuit, each tubular ceramic capacitor 9 is equipped with a magnetic bead 10, which is located between the inner electrode 3 of the tubular ceramic capacitor 9 and the outer wall of the corresponding contact member (pin 21 in the figure).

[0038] like Figure 5-Figure 9 As shown, during assembly, first place the magnetic bead 10 in the tubular ceramic capacitor 9, then put a metal clip 23 on the pin 21 and close to the pin boss 19, after the first end of the pin 21 passes through the magnetic bead 10, then put another metal clip 23 on the pin 21 and place it in the tubular ceramic capacitor 9, then insert the first end of the pin 21 into the connection hole at the first end of the terminal 14, so that the pin boss 19 and the terminal boss 15 respectively contact the two ends of the tubular ceramic capacitor 9, thus completing the assembly of a single filter pin; then pass the first insulator 16 through the first metal shell 17, and put multiple The filter pin is inserted into the multiple through holes of the first insulator 16, and then the metal grounding member 18 is placed in the first metal shell 17 and the metal grounding plate 181 is close to the first end of the first insulator 16. During this process, multiple tubular ceramic capacitors 9 are respectively passed through the multiple grounding plate through holes 182 of the metal grounding plate 181. Then, the second insulator 20 is placed in the first metal shell 17 and the first end of the second insulator 20 is in close contact with the metal grounding plate 181. Then, the first end of the second metal shell 22 is docked with the first end of the first metal shell 17 and riveted, completing the assembly of the entire socket or plug.

[0039] When in use, it is generally used as a filtering electrical connector socket, and can also be used as a plug. It is docked with a matching plug or socket, and the pin 21 is inserted into the corresponding jack to form a high-reliability filtering electrical connector; the second end of the terminal 14 is used to connect to the wire (generally by welding).

[0040] The above embodiments are only preferred embodiments of the present invention and are not limitations on the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A high-reliability filter electrical connector for a plug or socket, comprising a metal housing, an insulator, a tubular ceramic capacitor, a contact, a metal clamp, and a metal grounding member, wherein the insulator is entirely or partially disposed within the metal housing, the tubular ceramic capacitor comprises a bare ceramic tube, an inner electrode disposed on the inner wall of the bare ceramic tube, and an outer electrode disposed on the outer wall of the bare ceramic tube, a plurality of the tubular ceramic capacitors respectively passing through a plurality of through holes in the insulator, and a plurality of strip-shaped contacts respectively passing through the central through holes of the plurality of tubular ceramic capacitors, characterized in that: The metal clamping member includes an annular metal clamping plate, the outer peripheral edge of the metal clamping plate is provided with a plurality of outer claws along the circumferential direction, the top of the outer claws is inclined away from the outer peripheral direction of the metal clamping plate, the hole wall edge of the central through hole of the metal clamping plate is provided with a plurality of inner clamping plate claws along the circumferential direction, the top of the inner clamping plate claws is inclined toward the direction close to the center line of the central through hole of the metal clamping plate, each of the metal clamping plates is placed in the central through hole of the corresponding tubular ceramic capacitor, the top of all the outer claws on each metal clamping plate is in close contact with the inner electrode of the corresponding tubular ceramic capacitor, each of the contact pieces passes through the central through hole of the corresponding metal clamping plate, and the top of all the inner clamping plate claws on each metal clamping plate are in close contact with the corresponding contact piece. The outer wall is in close contact; the metal grounding part includes a metal grounding plate, and a plurality of grounding plate through-holes are provided on the metal grounding plate. The edge of the hole wall of each grounding plate through-hole is circumferentially provided with a plurality of grounding plate inner claws, and the top of the grounding plate inner claws is inclined toward the direction close to the center line of the corresponding grounding plate through-hole. The outer peripheral edge of the metal grounding plate is circumferentially provided with a plurality of outer cards, and the top of the outer card is inclined toward the outer peripheral direction away from the metal grounding plate. The metal grounding plate is placed in the metal shell, and a plurality of the tubular ceramic capacitors respectively pass through the corresponding plurality of grounding plate through-holes. The tops of all the grounding plate inner claws corresponding to each grounding plate through-hole are in close contact with the outer electrodes of the corresponding tubular ceramic capacitors, and the tops of all the outer cards are in contact with the inner wall of the metal shell.

2. The high-reliability filtering electrical connector for a plug or socket according to claim 1, characterized in that: The contact piece includes a terminal and a pin, and the insulator includes a first insulator and a second insulator. The first end of the terminal is provided with a connection hole, and the first end of the pin is inserted into the connection hole and crimped. A plurality of the pins pass through the central through holes of the plurality of tubular ceramic capacitors and the corresponding central through holes of the metal clamping plate. The outer wall of the terminal near the first end is provided with a protruding and annular terminal boss, and the middle section of the pin is provided with a protruding and annular pin boss near the second end. A part of the first insulator and the entirety of the second insulator are placed in the metal shell. The first end of the first insulator and the first end of the second insulator are close to each other. The first insulator A first annular step is provided in each through-hole of the first insulator, near the second of the two ends of the first insulator. Each of the wiring member bosses is positioned within the corresponding through-hole of the first insulator and contacts the corresponding first annular step. Each of the wiring member bosses also contacts one end of the corresponding tubular ceramic capacitor. A second annular step is provided in each through-hole of the second insulator, near the second of the two ends of the second insulator. Each of the pin bosses is positioned within the corresponding through-hole of the second insulator and contacts the corresponding second annular step. Each of the pin bosses also contacts the other end of the corresponding tubular ceramic capacitor. The metal ground plate is positioned between the first end of the first insulator and the first end of the second insulator.

3. The high-reliability filtering electrical connector for a plug or socket according to claim 2, characterized in that: The metal shell includes a first metal shell and a second metal shell. The first end of the first metal shell and the first end of the second metal shell are riveted to each other. The portion of the first insulator close to the first end and the second insulator are both placed in the first metal shell. An outwardly protruding convex ring is provided on the outer wall of the first insulator close to the first end, and the convex ring is blocked by the annular wall of the second end of the first metal shell. The aperture of the first end of the second metal shell is smaller than the aperture of the first end of the first metal shell. The second end of the second insulator is blocked by the first end of the second metal shell. The second end of the pin is placed in the second metal shell and close to the second end of the second metal shell.

4. The high-reliability filtering electrical connector for a plug or socket according to claim 2, characterized in that: Two metal clips are installed in each of the tubular ceramic capacitors. The two metal clips are respectively located near two ends of the tubular ceramic capacitor and are respectively connected to positions near two ends of the corresponding pins.

5. The high-reliability filtering electrical connector for a plug or socket according to any one of claims 1 to 4, characterized in that: The outer clamping claw, the inner clamping claw of the clamping plate and the inner clamping claw of the grounding plate are all triangular in shape with the tops thereof being vertex angles, and the outer clamping claw is rectangular in shape.

6. The high-reliability filtering electrical connector for a plug or socket according to any one of claims 1 to 4, characterized in that: The metal clamping part and the metal grounding part are both beryllium copper alloy parts with gold-plated surfaces.

7. The high-reliability filtering electrical connector for a plug or socket according to any one of claims 1 to 4, characterized in that: Each of the tubular ceramic capacitors is equipped with a magnetic bead, which is located between the inner electrode of the tubular ceramic capacitor and the outer wall of the corresponding contact piece.

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