Detachable filtering electric connector

Abstract

The invention discloses a detachable filtering electric connector, and belongs to the technical field of production of filtering electric connectors. Comprising a first metal shell, a second metal shell, a shell cover plate, pin contact pieces, jack contact pieces, a wire, a plate type capacitor, a first insulating mounting plate, a grounding reed, a first insulating pressing plate, a second insulating pressing plate, an insulating wire sealing body, a second insulating mounting plate and a third insulating pressing plate, the plurality of jack contact elements are arranged in the second metal shell and are mechanically positioned; and the upper ends of the plurality of pin contact elements are respectively connected with the lower ends of the plurality of jack contact elements in an inserting manner. All the elements are assembled together in a mechanical positioning mode, rapid assembly and disassembly of a product are facilitated, the production efficiency of the product is improved, the maintenance efficiency is improved, the cost is remarkably reduced, the filtering effect is ensured through the grounding reed, and the defects that the assembly period is long, and the assembly quality depends on operators are overcome.

Description

Technical Field

[0001] The invention belongs to the technical field of production of filter electric connectors, and in particular relates to a detachable filter electric connector. Background Art

[0002] As the electromagnetic interference signals of instruments and equipment in the working environment gradually increase, the requirements for the anti-electromagnetic interference performance of instruments and equipment are getting higher and higher. Electrical connectors with filtering functions, namely filtering electrical connectors, have been widely used on equipment. The use environment and scenarios of filtering electrical connectors have also become diversified, and their functions have also evolved from a single filtering function to multi-functionality, such as surge protection and other functions.

[0003] Due to the increasing demand for filter electrical connectors and their multifunctional development trend, how to improve production efficiency and shorten production cycle while ensuring the reliability of filter electrical connectors, and how to quickly and reliably add other functions based on the filtering performance of filter electrical connectors have become difficulties in the current development of filter electrical connectors.

[0004] Traditional filter electrical connectors are generally integrally sealed structures, mainly composed of metal shells, insulating mounting plates, plate capacitors (plate capacitors are also called ceramic array plate capacitors, plate through-hole ceramic capacitors, plate filter ceramic capacitors, etc., and their basic structure is that a plurality of capacitor through holes are provided on the ceramic dielectric plate and an inner electrode slurry layer is provided on the hole wall to form an inner electrode through hole, and a resistor slurry layer is provided on the dielectric plate and grounded), contacts (pins or sockets, generally pins), wires, potting glue, sealing body, and sealing body (both the sealing body and the sealing body are insulators). The plate capacitor is connected to the shell with conductive glue, the inside of the connector is filled and cured with potting material, the insulating mounting plate is bonded to the shell with adhesive glue, and the contact and other components are connected by welding. Some traditional filter electrical connectors also plug and connect the connector assembly including the contact and related components and the filter assembly including the filter element and related components to form two detachable components. The connector assembly and the filter assembly of this structure are also both sealed structures, and the components cannot be disassembled.

[0005] The above-mentioned traditional filter electrical connector has the following defects: 1) The product is completely potted with potting glue, and it is impossible to disassemble and repair it, especially the contacts and related parts with a high failure rate. Once a problem occurs, it can only be solved by replacing the entire filter electrical connector or replacing the connector assembly where the contact is located. This results in a large waste of materials and high product costs, which is not conducive to the strategic policy of reducing costs and increasing efficiency.

[0006] 2) The plate capacitor and the metal casing are grounded by bonding with conductive glue. First, it is difficult to disassemble. Second, the conductive glue will age after long-term use at high temperature, and the contact resistance will increase, reducing the filtering effect. If it is affected by vibration and shock after long-term high-temperature work, the glue may crack. In severe cases, poor grounding will occur, resulting in loss of filtering function.

[0007] 3) Potting, gluing and welding are used to connect and assemble the components. The curing time of the glue for potting and gluing is long, resulting in a long product assembly cycle. Most glues need to be cured in a high temperature environment. The curing temperature is high and the time is long. The dielectric constant of the plate capacitor porcelain will change after being exposed to high temperature. It is easy for the product capacity to change and be difficult to recover after the glue is cured at high temperature. It is difficult to make the filling amount of the glue and the uniformity of the glue coating completely consistent. The quality of welding is heavily dependent on the professional skills of the welders. The status of product batches and individuals will be uneven, which is not conducive to maintaining product quality consistency.

[0008] In addition, the traditional filtering electrical connector uses potting glue to fix the contact parts, and the contact parts do not have floating properties. When the socket and plug are mated with each other, the mating force is large, which is not conducive to the use of the product.

[0009] In addition, the interior of traditional filtering electrical connectors is only large enough to accommodate capacitors and magnetic cores (inductors), and can only perform filtering and shielding functions, but does not have other functions such as surge protection, which limits its application. Summary of the invention

[0010] The object of the present invention is to provide a detachable filter electrical connector that is easy to assemble and disassemble quickly in order to solve the above problems.

[0011] The present invention achieves the above-mentioned purpose through the following technical solutions: A detachable filter electrical connector, comprising a first metal shell, a second metal shell, a shell cover, a pin contact, a jack contact, a wire, a plate capacitor and a first insulating mounting plate, and also comprising a grounding spring, a first insulating pressure plate, a second insulating pressure plate, an insulating wire sealing body, a second insulating mounting plate and a third insulating pressure plate, with the axial direction of the first cylindrical metal shell as the vertical direction, the lower end of the second metal shell is connected to the upper end of the first metal shell, the shell cover is installed on the upper end of the second metal shell, the first insulating mounting plate, the plate capacitor, the first insulating pressure plate, and the second insulating pressure plate are connected by the lower The insulating wire sealing body is installed in the first metal shell and cannot move vertically. The middle part of the pin contact is provided with a pin convex ring protruding toward the peripheral direction. The first insulating pressure plate is provided with a plurality of first pressure plate through holes, and the second insulating pressure plate is provided with a plurality of second pressure plate through holes. The aperture of the first pressure plate through hole is larger than the aperture of the second pressure plate through hole. The upper ends of the plurality of pin contacts respectively pass through the plurality of corresponding through holes on the first insulating mounting plate, the plurality of inner electrode through holes on the plate capacitor, and the first insulating A plurality of first pressure plate through holes on the pressure plate, a plurality of second pressure plate through holes on the second insulating pressure plate, and a plurality of corresponding through holes on the insulating sealing wire body, a plurality of the pin convex rings are respectively located in the plurality of the first pressure plate through holes and the positions near the edges thereof are pressed by the second insulating pressure plate, the grounding spring is installed between the circumferential outer wall of the plate capacitor and the circumferential inner wall of the first metal shell and in close contact, the second insulating mounting plate and the third insulating pressure plate are sequentially installed in the second metal shell from bottom to top and cannot move vertically, a jack convex ring protruding in the circumferential direction is provided in the middle of the jack contact piece, the first The three insulating pressure plates are provided with a plurality of third pressure plate through holes and the lower aperture of each third pressure plate through hole is enlarged to form a pressure plate sink groove. The plurality of the jack contacts respectively pass through the plurality of corresponding through holes on the second insulating mounting plate and the plurality of the third pressure plate through holes of the third insulating pressure plate. The plurality of the jack convex rings are respectively placed in the plurality of pressure plate sink grooves. The upper ends of the plurality of the pin contacts are respectively plug-connected with the lower ends of the plurality of the jack contacts. The upper ends of the plurality of the jack contacts are respectively connected with the inner ends of the plurality of the wires. The outer ends of the plurality of the wires pass through the corresponding through holes on the shell cover and are placed above the shell cover. Both ends of the above-mentioned pin contacts are preferably pins, and both ends of the above-mentioned jack contacts are preferably sockets.

[0012] Preferably, in order to better realize the function that the first insulating mounting plate, the first insulating pressure plate and the second insulating pressure plate cannot move vertically under the premise of easy installation and disassembly, the upper part of the first insulating mounting plate protrudes toward the outer circumferential direction to form a first convex ring, a first annular step is provided on the circumferential inner wall of the first metal shell at a position corresponding to the first convex ring, the first convex ring is located above the first annular step, the upper part of the first insulating pressure plate protrudes toward the outer circumferential direction to form a second convex ring, a second annular step is provided on the circumferential inner wall of the first metal shell at a position corresponding to the second convex ring, the second convex ring is located above the second annular step, the lower part of the second insulating pressure plate protrudes toward the outer circumferential direction to form a third convex ring, the retaining ring is installed in the first metal shell and is located above the third convex ring, the upper part of the second insulating mounting plate protrudes toward the outer circumferential direction to form a fourth convex ring, a third annular step is provided on the circumferential inner wall of the second metal shell at a position corresponding to the fourth convex ring, and the fourth convex ring is located above the third annular step.

[0013] Preferably, in order to better realize the function that the second insulating mounting plate and the third insulating pressure plate cannot move vertically under the premise of easy installation and disassembly, and at the same time to realize more electrical functions such as surge protection function, the outer periphery of the upper end of the shell cover plate protrudes in the outer periphery direction to form a cover plate convex ring, and the cover plate convex ring is placed above the upper end of the second metal shell, and the position close to the edge on the shell cover plate extends downward and its lower end is located above the third insulating pressure plate. A printed circuit board is provided above the third insulating pressure plate, and electrical components such as surge protection diodes can be installed on the printed circuit board as needed. Multiple jack contacts respectively pass through corresponding through holes on the printed circuit board and are conductively connected to each other. A printed wire is provided on the top of the printed circuit board near the edge and a conductive rubber ring is installed on it. The top of the conductive rubber ring is located below the lower end of the shell cover plate and is in close contact with it. Multiple horizontal connecting screws respectively pass through multiple through holes on the second metal shell and are connected to multiple screw holes on the shell cover plate.

[0014] Preferably, in order to enable the jack contact to have a floating function when in use, an annular elastic sheet is provided on the jack contact at a position above the corresponding through hole on the printed circuit board, and gaps are respectively left between the jack contact and the walls of multiple corresponding through holes on the second insulating mounting plate, between the jack contact and the walls of multiple through holes of the third pressure plate, and between the jack contact and the bottoms of multiple pressure plate grooves.

[0015] Preferably, in order to realize a non-welding connection structure between the pin contact and the plate capacitor, the pin contact and the hole wall of the corresponding inner electrode through hole of the plate capacitor are conductively connected via an annular claw spring.

[0016] Preferably, in order to make the pin contact have a floating function when in use, so that the mutual matching force between the pin contact and the socket contact is small when they are plugged together, which is beneficial to product application, the outer diameter of a section of the pin contact corresponding to the pin convex ring is enlarged to form a pin large diameter section, the pin convex ring is arranged at the lower part of the pin large diameter section, the outer diameter of the pin convex ring is larger than the outer diameter of the pin large diameter section, the pin large diameter section is simultaneously located in the first pressure plate through hole and the second pressure plate through hole, and a ring-shaped retaining spring in close contact is provided between the lower outer wall of the pin large diameter section and the hole wall of the first pressure plate through hole, and the upper side of the retaining spring is pressed by the second insulating pressure plate.

[0017] Preferably, in order to better protect the plate capacitor and achieve a better insulation effect, an upper insulating rubber 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 rubber pad, a lower insulating rubber pad is provided between the bottom of the plate capacitor and the first insulating mounting plate, and the pin contact passes through the corresponding through hole on the lower insulating rubber pad, and an insulating seal is provided below the first insulating mounting plate, and the pin contact passes through the corresponding through hole on the insulating seal.

[0018] Preferably, to facilitate assembly and application, the upper and middle outer wall of the first metal shell is provided with a protruding first shell flange, the lower end outer wall of the second metal shell is provided with a protruding second shell flange, the lower inner wall of the second shell flange is provided with an annular groove, the first shell flange is placed in the annular groove, and a plurality of vertical locking screws pass through a plurality of through holes on the first shell flange from bottom to top and are connected to a plurality of screw holes on the bottom of the annular groove.

[0019] Preferably, in order to facilitate application and ensure that the grounding spring and the plate capacitor will not be misaligned, the grounding spring is bent from a strip spring to form a circular ring spring, and the lower side or upper side of the grounding spring is provided with a limiting folded edge protruding inward.

[0020] The beneficial effects of the present invention are: The present invention installs the pin contact and the plate capacitor in the first metal shell in a mechanical positioning manner through the first insulating mounting plate, the first insulating pressure plate and the second insulating pressure plate, installs the grounding spring between the plate capacitor and the inner wall of the first metal shell to realize the conductive grounding function, and installs the jack contact in the second metal shell in a mechanical positioning manner through the second insulating mounting plate, the third insulating pressure plate and the shell cover plate, so that all components are assembled together in a mechanical positioning manner, and there is no need for potting with potting glue, nor does it require gluing and welding, which facilitates rapid assembly and disassembly of products, improves product production efficiency, is conducive to repairing products by replacing some components, and improves repair efficiency, significantly reduces costs, and the good elasticity of the grounding spring can realize the long-term good conductive grounding function of the plate capacitor, ensures the filtering effect, and avoids the disadvantages of long assembly cycle, high welding temperature, damage to electrical components, and assembly quality dependence on the operator's level and experience caused by gluing and welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a stereoscopic diagram of the detachable filter electrical connector of the present invention after being fully assembled; Figure 2 is a three-dimensional diagram of the semi-assembled detachable filter electrical connector of the present invention; Figure 3 It is an exploded perspective view of the first metal shell of the detachable filtering electrical connector of the present invention and its internal components before assembly; Figure 4 It is a three-dimensional diagram of the grounding spring of the detachable filtering electrical connector of the present invention; Figure 5 It is an exploded perspective view of the second metal shell of the detachable filtering electrical connector of the present invention and its internal components before assembly; Figure 6 It is a front cross-sectional view of the detachable filtering electrical connector of the present invention after being fully assembled. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-Figure 6As shown, the detachable filtering electrical connector of the present invention comprises a first metal shell 7, a second metal shell 5, a shell cover 3, a pin contact 8, a jack contact 35, a wire 1, a plate capacitor 25, a first insulating mounting plate 28, a grounding spring 23, a first insulating pressure plate 19, a second insulating pressure plate 13, an insulating sealing body 9, a second insulating mounting plate 39 and a third insulating pressure plate 34, with the axial direction of the cylindrical first metal shell 7 as the vertical direction, the lower end of the second metal shell 5 is connected to the upper end of the first metal shell 7, the shell cover 3 is installed on the upper end of the second metal shell 5, the first insulating mounting plate 28, the plate capacitor 25, the first insulating pressure plate 19, the second insulating pressure plate 13, the insulating sealing body 9, the second insulating mounting plate 39 and the third insulating pressure plate 34. 3 are sequentially installed in the first metal shell 7 from bottom to top and cannot move vertically, the insulating sealing body 9 (a conventional insulator) is installed in the first metal shell 7 and is located above the second insulating pressing plate 13, the middle part of the pin contact 8 is provided with a pin convex ring 21 protruding toward the peripheral direction, the first insulating pressing plate 19 is provided with a plurality of first pressing plate through holes 18, the second insulating pressing plate 13 is provided with a plurality of second pressing plate through holes 14, the aperture of the first pressing plate through hole 18 is larger than the aperture of the second pressing plate through hole 14, the upper ends of the plurality of pin contacts 8 respectively pass through a plurality of corresponding through holes (not marked in the figure) on the first insulating mounting plate 28, a plurality of inner electrode through holes (not marked in the figure) on the plate capacitor 25 from bottom to top. The plurality of first pressing plate through holes 18 on the first insulating pressing plate 19, the plurality of second pressing plate through holes 14 on the second insulating pressing plate 13, and the plurality of corresponding through holes on the insulating sealing body 9 (not marked in the figure), the plurality of pin convex rings 21 are respectively located in the plurality of first pressing plate through holes 18 and the positions near the edges thereof are pressed by the second insulating pressing plate 13, the grounding spring 23 is installed between the circumferential outer wall of the plate capacitor 25 and the circumferential inner wall of the first metal shell 7 and in close contact, the second insulating mounting plate 39 and the third insulating pressing plate 34 are sequentially installed in the second metal shell 5 from bottom to top and cannot move vertically, and the middle part of the jack contact 35 is provided with a jack convex ring 3 protruding in the circumferential direction. 7. The third insulating pressure plate 34 is provided with a plurality of third pressure plate through holes 33 and the lower aperture of each third pressure plate through hole 33 is enlarged to form a pressure plate recess (not marked in the figure), a plurality of jack contacts 35 respectively pass through a plurality of corresponding through holes (not marked in the figure) on the second insulating mounting plate 39 and a plurality of third pressure plate through holes 33 of the third insulating pressure plate 34, a plurality of jack protruding rings 37 are respectively placed in a plurality of said pressure plate recesses, the upper ends of the plurality of pin contacts 8 are respectively plug-connected with the lower ends of the plurality of jack contacts 35, the upper ends of the plurality of jack contacts 35 are respectively connected with the inner ends of the plurality of wires 1, and the outer ends of the plurality of wires 1 pass through the corresponding through holes on the shell cover 3 and are placed above the shell cover 3.

[0023] like Figure 1-Figure 6 As shown, the present invention also discloses the following more optimized specific structures: In order to better realize the function that the first insulating mounting plate 28, the first insulating pressure plate 19 and the second insulating pressure plate 13 cannot move vertically under the premise of easy installation and disassembly, the upper part of the first insulating mounting plate 28 protrudes in the outer circumferential direction to form a first convex ring 27, and a first annular step (not marked in the figure) is provided at a position corresponding to the first convex ring 27 on the circumferential inner wall of the first metal shell 7, and the first convex ring 27 is located above the first annular step, and the upper part of the first insulating pressure plate 19 protrudes in the outer circumferential direction to form a second convex ring 17, and the circumferential inner wall of the first metal shell 7 is provided with a first annular step (not marked in the figure), and the first convex ring 27 is located above the first annular step. A second annular step (not marked in the figure) is provided at a position corresponding to 17, the second convex ring 17 is located above the second annular step, the lower part of the second insulating pressure plate 13 protrudes toward the outer circumference to form a third convex ring 15, the retaining ring 12 is installed in the first metal shell 7 and is located above the third convex ring 15, the upper part of the second insulating mounting plate 39 protrudes toward the outer circumference to form a fourth convex ring 38, and a third annular step (not marked in the figure) is provided on the circumferential inner wall of the second metal shell 5 at a position corresponding to the fourth convex ring 38, and the fourth convex ring 38 is located above the third annular step.

[0024] In order to better realize the function that the second insulating mounting plate 39 and the third insulating pressing plate 34 cannot move vertically under the premise of easy installation and disassembly, and at the same time to realize more electrical functions such as surge protection function, the upper end outer periphery of the shell cover 3 is convex in the outer peripheral direction to form a cover convex ring 30, and the cover convex ring 30 is placed above the upper end of the second metal shell 5. The position close to the edge of the shell cover 3 extends downward and its lower end is located above the third insulating pressing plate 34. A printed circuit board 32 is provided above the third insulating pressing plate 34. Electrical components such as surge protection diodes can be installed on the printed circuit board 32 as needed. A plurality of jack contacts 35 They respectively pass through corresponding through holes (not marked in the figure) on the printed circuit board 32 and are conductively connected to each other. A printed wire is provided on the upper side of the printed circuit board 32 near the edge and a conductive rubber ring 31 is installed on it (the function is to connect one end of the electrical components such as the surge protection diode on the printed circuit board 32 with the shell cover 3 and the second metal shell 5 to achieve the grounding function). The upper side of the conductive rubber ring 31 is located below the lower end of the shell cover 3 and is in close contact with it. A plurality of transverse connecting screws 4 respectively pass through a plurality of through holes (not marked in the figure) on the second metal shell 5 and are connected to a plurality of screw holes (not marked in the figure) on the shell cover 3.

[0025] In order to make the jack contact 35 have a floating function when in use, an annular elastic sheet 36 is provided on the jack contact 35 above the corresponding through hole on the printed circuit board 32, and gaps are left between the jack contact 35 and the walls of multiple corresponding through holes on the second insulating mounting plate 39, between the walls of multiple third pressure plate through holes 33, and between the bottoms of multiple pressure plate grooves.

[0026] In order to realize the non-welding connection structure between the pin contact 8 and the plate capacitor 25 , the pin contact 8 and the hole wall of the corresponding inner electrode through hole of the plate capacitor 25 are conductively connected via the annular claw spring 24 .

[0027] In order to make the pin contact 8 have a floating function when in use, so that the mutual matching force between the pin contact 8 and the socket contact 35 is small when they are plugged together, which is beneficial to product application, the outer diameter of a section of the pin contact 8 corresponding to the pin convex ring 21 is enlarged to form a pin large diameter section 20, and the pin convex ring 21 is arranged at the lower part of the pin large diameter section 20. The outer diameter of the pin convex ring 21 is greater than the outer diameter of the pin large diameter section 20. The pin large diameter section 20 is simultaneously located in the first pressure plate through hole 18 and the second pressure plate through hole 14. A tightly contacting annular retaining spring 16 is provided between the lower outer wall of the pin large diameter section 20 and the hole wall of the first pressure plate through hole 18, and the upper side of the retaining spring 16 is pressed by the second insulating pressure plate 13.

[0028] In order to better protect the plate capacitor 25 and achieve a better insulation effect, an upper insulating rubber 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 rubber pad 22, a lower insulating rubber pad 26 is provided between the bottom of the plate capacitor 25 and the first insulating mounting plate 28, and the pin contact 8 passes through the corresponding through hole on the lower insulating rubber pad 26, and an insulating seal 29 (which is a conventional insulator) is provided below the first insulating mounting plate 28, and the pin contact 8 passes through the corresponding through hole on the insulating seal 29.

[0029] To facilitate assembly and application, a protruding first shell flange 10 is provided on the middle and upper outer wall of the first metal shell 7, a protruding second shell flange 6 is provided on the lower end outer wall of the second metal shell 5, and an annular groove (not marked in the figure) is provided on the lower inner wall of the second shell flange 6. The first shell flange 10 is placed in the annular groove, and a plurality of vertical locking screws (not visible in the figure) pass through a plurality of through holes 11 on the first shell flange 20 from bottom to top and are connected to a plurality of screw holes (not visible in the figure) on the bottom of the annular groove.

[0030] In order to facilitate application and ensure that the grounding spring 23 and the plate capacitor 25 are not misaligned, the grounding spring 23 is bent from a strip spring to form a circular ring spring, and the lower side (or upper side) of the grounding spring 23 is provided with a limiting folded edge 231 protruding inward.

[0031] Figure 1 , Figure 2 , Figure 5 and Figure 6 Also shown is an insulator 2 which is arranged on the housing cover 3 and is used to insulate the conductor 1 from the housing cover 3 and is a conventional structure.

[0032] like Figure 1-Figure 6As shown, when used, multiple pin contacts 8 are connected to a power source or signal source that needs filtering, and the outer ends of multiple wires 1 are connected to electrical equipment (not shown in the figure). Multiple pin contacts 8 are first filtered by the plate capacitor 25. After filtering out the interfering electromagnetic waves, multiple wires 1 provide relevant electrical signals to the electrical equipment; when separation is required, remove the locking screws, separate the first metal shell 7 and the second metal shell 5, and then separate the multiple pin contacts 8 from the multiple socket contacts 35, that is, realize the separation function of signal transmission; if some components are damaged and need to be replaced or repaired, such as when the plate capacitor 25 or the pin contact 8 is damaged and needs to be replaced or repaired, first remove the insulator. Remove the edge sealing wire body 9 and the clamp ring 12, and then remove the second insulating platen 13, the first insulating platen 19 (take out multiple pin contacts 8 at the same time, and you can also take out the upper insulating rubber pad 22 and the plate capacitor 25), the upper insulating rubber pad 22, the plate capacitor 25, the lower insulating rubber pad 26 and the first insulating mounting plate 28 in turn, and then insert the needle remover into each retaining spring 16, open the claw piece, and then you can take out the corresponding pin contact 8. The claw spring 24 and the corresponding pin contact 8 are in elastic contact, and the pin contact 8 can be directly taken out from the plate capacitor 25, so that the rapid disassembly of the relevant components can be achieved. After maintenance or replacement, they can be assembled according to the reverse process. The disassembly and assembly of the jack contact 35, the printed circuit board 32 and related components are similar to the above and will not be repeated.

[0033] The above embodiments are only preferred embodiments of the present invention and are not limitations of 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 detachable filter electrical connector, comprising a first metal shell, a second metal shell, a shell cover, a pin contact, a socket contact, a wire, a plate capacitor and a first insulating mounting plate, characterized in that: It also includes a grounding spring, a first insulating pressure plate, a second insulating pressure plate, an insulating sealing body, a second insulating mounting plate and a third insulating pressure plate. The axial direction of the first cylindrical metal shell is vertical, the lower end of the second metal shell is connected to the upper end of the first metal shell, the shell cover is installed on the upper end of the second metal shell, the first insulating mounting plate, the plate capacitor, the first insulating pressure plate, and the second insulating pressure plate are installed in the first metal shell from bottom to top in sequence and cannot move vertically. The insulating sealing body is installed in the first metal shell and is located at Above the second insulating pressure plate, a pin convex ring protruding toward the outer circumference is provided in the middle of the pin contact piece, a plurality of first pressure plate through holes are provided on the first insulating pressure plate, a plurality of second pressure plate through holes are provided on the second insulating pressure plate, the aperture of the first pressure plate through hole is larger than the aperture of the second pressure plate through hole, and the upper ends of the plurality of pin contacts respectively pass through the plurality of corresponding through holes on the first insulating mounting plate, the plurality of inner electrode through holes on the plate capacitor, the plurality of first pressure plate through holes on the first insulating pressure plate, and the plurality of second pressure plate through holes on the second insulating pressure plate from bottom to top. , a plurality of corresponding through holes on the insulating sealing body, a plurality of the pin convex rings are respectively located in a plurality of the first pressure plate through holes and the upper portion thereof near the edge is pressed by the second insulating pressure plate, the grounding spring is installed between the circumferential outer wall of the plate capacitor and the circumferential inner wall of the first metal shell and is in close contact, the second insulating mounting plate and the third insulating pressure plate are sequentially installed in the second metal shell from bottom to top and cannot move vertically, a jack convex ring protruding in the circumferential direction is provided in the middle of the jack contact piece, the third insulating pressure plate is provided with a plurality of third pressure plate through holes and The lower aperture of each of the third pressure plate through holes is enlarged to form a pressure plate recessed groove, and the plurality of the jack contacts respectively pass through the plurality of corresponding through holes on the second insulating mounting plate and the plurality of the third pressure plate through holes of the third insulating pressure plate, and the plurality of the jack convex rings are respectively placed in the plurality of pressure plate recessed grooves, and the upper ends of the plurality of the pin contacts are respectively plug-connected with the lower ends of the plurality of the jack contacts, and the upper ends of the plurality of the jack contacts are respectively connected with the inner ends of the plurality of the wires, and the outer ends of the plurality of the wires pass through the corresponding through holes on the shell cover and are placed above the shell cover.

2. The detachable filtering electrical connector according to claim 1, characterized in that: The upper part of the first insulating mounting plate protrudes toward the outer circumference to form a first protruding ring, a first annular step is provided on the circumferential inner wall of the first metal shell at a position corresponding to the first protruding ring, and the first protruding ring is located above the first annular step, the upper part of the first insulating pressure plate protrudes toward the outer circumference to form a second protruding ring, a second annular step is provided on the circumferential inner wall of the first metal shell at a position corresponding to the second protruding ring, and the second protruding ring is located above the second annular step, the lower part of the second insulating pressure plate protrudes toward the outer circumference to form a third protruding ring, the retaining ring is installed in the first metal shell and is located above the third protruding ring, the upper part of the second insulating mounting plate protrudes toward the outer circumference to form a fourth protruding ring, a third annular step is provided on the circumferential inner wall of the second metal shell at a position corresponding to the fourth protruding ring, and the fourth protruding ring is located above the third annular step.

3. The detachable filtering electrical connector according to claim 2, characterized in that: The outer circumference of the upper end of the shell cover plate protrudes toward the outer circumference direction to form a cover plate convex ring, and the cover plate convex ring is placed above the upper end of the second metal shell. The upper portion of the shell cover plate near the edge extends downward and its lower end is located above the third insulating pressure plate. A printed circuit board is provided above the third insulating pressure plate, and a plurality of the jack contacts respectively pass through corresponding through holes on the printed circuit board and are conductively connected to each other. A printed wire is provided on the upper portion of the printed circuit board near the edge and a conductive rubber ring is installed thereon. The upper portion of the conductive rubber ring is located below the lower end of the shell cover plate and is in close contact therewith. A plurality of transverse connecting screws respectively pass through a plurality of through holes on the second metal shell and are connected to a plurality of screw holes on the shell cover plate.

4. The detachable filtering electrical connector according to claim 3, characterized in that: An annular elastic sheet is provided on the jack contact piece at a position above the corresponding through hole on the printed circuit board, and gaps are respectively left between the jack contact piece and the walls of the multiple corresponding through holes on the second insulating mounting plate, between the jack contact piece and the walls of the multiple through holes of the third pressure plate, and between the jack contact piece and the bottoms of the multiple pressure plate grooves.

5. The detachable filtering electrical connector according to any one of claims 1 to 4, characterized in that: The pin contact is electrically connected to the hole wall of the corresponding inner electrode through hole of the plate capacitor via an annular claw spring.

6. The detachable filtering electrical connector according to any one of claims 1 to 4, characterized in that: The outer diameter of a section of the pin contact piece corresponding to the pin convex ring is increased to form a pin large diameter section, the pin convex ring is arranged at the lower part of the pin large diameter section, the outer diameter of the pin convex ring is greater than the outer diameter of the pin large diameter section, the pin large diameter section is simultaneously located in the first pressure plate through hole and the second pressure plate through hole, a ring-shaped retaining spring in close contact is provided between the lower outer wall of the pin large diameter section and the hole wall of the first pressure plate through hole, and the upper side of the retaining spring is pressed by the second insulating pressure plate.

7. The detachable filtering electrical connector according to any one of claims 1 to 4, characterized in that: An upper insulating rubber 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 rubber pad; a lower insulating rubber pad is provided between the bottom of the plate capacitor and the first insulating mounting plate, and the pin contact passes through the corresponding through hole on the lower insulating rubber pad; an insulating sealing body is provided below the first insulating mounting plate, and the pin contact passes through the corresponding through hole on the insulating sealing body.

8. The detachable filtering electrical connector according to any one of claims 1 to 4, characterized in that: The upper and middle outer wall of the first metal shell is provided with a protruding first shell flange, the lower end outer wall of the second metal shell is provided with a protruding second shell flange, the lower inner wall of the second shell flange is provided with an annular groove, the first shell flange is placed in the annular groove, and a plurality of vertical locking screws pass through a plurality of through holes on the first shell flange from bottom to top and are connected with a plurality of screw holes on the bottom of the annular groove.

9. The detachable filtering electrical connector according to any one of claims 1 to 4, characterized in that: The grounding spring is formed by bending a strip spring to form a circular ring spring, and a limit folding edge protruding inward is provided on the lower side or the upper side of the grounding spring.

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