Detachable filtering connector

Abstract

The invention relates to a detachable filtering connector which comprises a shell extending in the axial direction and an insulation part assembled in the shell, a contact piece installation hole is formed in the insulation part, a positioning spring, a contact piece and a tubular capacitor fixedly welded to the periphery of the contact piece are fixedly assembled in the contact piece installation hole to form a capacitor contact piece, and the tubular capacitor is fixedly welded to the periphery of the contact piece. The capacitor contact element is fixed and positioned in the insulating part through the positioning spring; the tubular capacitor is also in contact conduction with a grounding plate which is positioned and assembled in the shell; and the periphery of the grounding plate is in contact conduction with the inner circumferential surface of the shell. According to the invention, the capacitor and the contact piece are combined into the capacitor contact piece, and the capacitor contact piece is detachably fixed in the insulating part through the positioning spring, so that the replacement requirements of the capacitor and the contact piece are met.

Description

Technical Field

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

[0002] The contacts and capacitors in existing filter connectors are fixed inside the connector, making it impossible to remove and repair the contacts. Damage to either the contacts or the capacitor renders the entire connector unusable, resulting in a waste of resources. Furthermore, when filter parameters need to be changed, the capacitors are fixed and cannot be adjusted, making the filter connector unable to meet varying filter requirements and inconvenient to use. Summary of the Invention

[0003] The object of the present invention is to provide a removable filter connector, in which a capacitor and a contact are integrally welded to form a capacitor contact. The capacitor contact can be removed and installed, thereby allowing capacitor contacts with any filtering parameters to be selected for assembly as needed. When the filter capacitor is damaged, the damaged capacitor contact can be removed and replaced with a new capacitor contact for continued use, and the parameters can be freely replaced and selected.

[0004] The purpose of the present invention and the technical problem to be solved are achieved by adopting the following technical solutions.

[0005] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0006] The aforementioned removable filter connector includes a shell extending axially and an insulating component assembled in the shell, wherein a contact mounting hole is provided in the insulating component, a positioning spring is fixedly assembled in the contact mounting hole, and the contact and a tubular capacitor welded and fixed to the outer periphery of the contact constitute a capacitor contact, and the capacitor contact is fixedly positioned in the insulating component by the positioning spring; the tubular capacitor is also in contact and conductive with a grounding plate positioned and assembled in the shell, and the outer periphery of the grounding plate is in contact and conductive with the inner circumference of the shell.

[0007] The aforementioned removable filter connector, the insulating component includes an insulator at the front end and an insulating pressure plate at the rear end, the grounding plate is located between the insulator and the insulating pressure plate, and is bonded and fixed to the insulator and the insulating pressure plate to form an insulating component.

[0008] In the aforementioned removable filter connector, a spring is fixed in the through hole in the ground plate for the capacitor contact to pass through, and the ground plate is in contact with the tubular capacitor through the spring.

[0009] The aforementioned removable filter connector, the spring includes an annular body and a plurality of elastic fins extending from the front end of the annular body. The annular body is arranged in a through hole on the grounding plate and is fixed to the end surface of the grounding plate by a mortise and tenon joint through the outer peripheral edge of its rear end.

[0010] In the aforementioned removable filter connector, a grounding spring is further fixed to the outer periphery of the grounding plate, and the grounding spring is used to achieve contact and conduction between the grounding plate and the inner peripheral surface of the shell.

[0011] In the aforementioned removable filter connector, an interface sealing body is bonded and fixed to the front end surface of the insulator.

[0012] In the aforementioned removable filter connector, the insulator component is fixed in the housing by adhesive bonding, and the housing is also provided with a step surface for axially stopping and cooperating with the front end step surface of the insulator to realize a prompt that the insulator component is installed in place.

[0013] In the aforementioned removable filter connector, an interface sealing body is fixedly assembled in the housing and seals with the rear end face of the insulator component.

[0014] The aforementioned removable filter connector has a ring platform on the outer periphery of the contact piece, and the claw of the positioning spring is supported on the rear end surface of the ring platform; the front end of the contact piece is also provided with a stepped surface for cooperating with the inner stop structure of the insulating component to achieve axial forward stop limit.

[0015] In the aforementioned removable filter connector, the capacitor contacts have different capacitance parameters, and a color ring for identifying the capacitance parameter is provided on the periphery of the contact.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. By means of the above technical solution, the present invention can achieve considerable technological advancement and practicality, and has wide industrial application value. It has at least the following advantages:

[0017] The present invention combines a capacitor and a contact piece into a capacitor contact piece, the parameters of which are selectable, and a stepped surface is designed on the contact piece to achieve the positioning of the contact piece; a ring platform is simultaneously provided for positioning the spring to fix the capacitor contact piece, thereby achieving the integrated installation and removal of the capacitor and the contact piece.

[0018] The ceramic through-tube capacitor and the removable contact member of the present invention form a serialized and standardized capacitor component, and parameters can be arbitrarily selected. Different capacitor parameters are represented by applying a single color ring on the component, thereby realizing rapid differentiation of the capacitor parameters.

[0019] The grounding spring of the present invention and the periphery of the grounding plate form an integrated flexible grounding structure through a mortise and tenon method, and the spring piece and the grounding plate hole form an integrated capacitor connection structure through a mortise and tenon method; thereby achieving reliable connection between the grounding plate and the shell, and between the grounding plate and the capacitor contact piece.

[0020] The present invention also provides an integrated insulator component, in which three elastic contact structures are designed. One is a spring, which realizes an effective electrical connection between the capacitor and the grounding plate and forms a good electrical connection and shielding with the shell through the grounding plate, the grounding spring and the shell; the other is a positioning spring that uses a spring claw to support the ring platform on the contact piece to achieve the fixation of the contact piece. The spring claw can also be opened by a removal tool to remove the capacitor contact piece, thus ultimately realizing the removability of the capacitor contact piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the removable filter connector of the present invention;

[0022] Figure 2 This is a schematic diagram of the contact structure of the removable filter connector of the present invention;

[0023] Figure 3 This is a schematic structural diagram of a capacitor contact of a removable filter connector according to the present invention;

[0024] Figure 4 This is a schematic diagram of the three flexible insulator components of the removable filter connector of the present invention.

[0025]

Main component symbol description

[0026] 1: Shell

[0027] 2: Insulator

[0028] 3: Insulation pressure plate

[0029] 4: Capacitor contact

[0030] 5: Contact

[0031] 6: Tubular capacitor

[0032] 7: Ground plate

[0033] 8: Grounding spring

[0034] 9: Shrapnel

[0035] 10: Positioning spring

[0036] 11: Contact mounting hole

[0037] 12: Color wheel

[0038] 13: Interface sealing body

[0039] 14: Section seal

[0040] 15: First bonding position

[0041] 16: Second bonding position

[0042] 17: Rubber ring DETAILED DESCRIPTION

[0043] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the removable filter connector proposed in accordance with the present invention in combination with the accompanying drawings and preferred embodiments.

[0044] See also Figure 1-4 , which is a schematic diagram of the structure of the various parts of the removable filter connector of the present invention. The removable filter connector includes a housing 1 extending in the axial direction, an insulating component fixedly assembled in the housing 1, a capacitor contact 4 detachably fixedly assembled in the insulating component, and in contact and conduction with a grounding plate 7 fixedly assembled in the housing 1, and the grounding plate 7 is also in contact and conduction with the housing 1. The capacitor contact 4 includes a contact 5 extending in the axial direction and a tubular capacitor 6 welded and fixed to the outer periphery of the contact 5. In the embodiment of the present invention, the contact 5 is a pin contact, but in other embodiments of the present invention, the contact 5 may also be a socket contact.

[0045] The capacitor contact 4 is removably coupled to the insulating component via a positioning spring 10 fixedly mounted within the insulating component. The insulating component includes a contact mounting hole 11 adapted for the capacitor contact 4, and the positioning spring 10 is fixedly mounted within the contact mounting hole 11. A ring 51 is provided on the outer periphery of the contact 5. The claws of the positioning spring 10 are supported on the rear end of the ring 51, limiting the axial rearward position of the capacitor contact 4. The front end of the contact 5 also includes a forward-facing stepped surface 52. When the capacitor contact 4 is assembled, the stepped surface 52 is axially stopped and restrained by a retaining structure within the insulating component. The capacitor contact 4 is inserted into the rear end of the contact mounting hole 11. When the stepped surface 52 of the contact 5 is axially stopped and restrained by the stepped surface of the front end of the contact mounting hole 11, the capacitor contact 4 is assembled. Simultaneously, the ring 51 on the outer periphery of the contact 5 passes over the claws of the positioning spring 10, causing the claws to open and rest on the rear end of the ring 51. When the capacitor contact 4 needs to be replaced, the corresponding capacitor contact 4 can be taken out by simply expanding the claws of the positioning spring 10 .

[0046] In the embodiment of the present invention, the rear end face of the tubular capacitor 6 is axially stopped and limited by the front end face of the ring platform 51. That is, the ring platform 51 of the present invention is also used to locate the welding position of the tubular capacitor 6.

[0047] In this embodiment of the present invention, the capacitor contact 4 is a standard, serial capacitor contact with different capacitance parameters. During use, the capacitor contact 4 with the corresponding capacitance can be selected as needed. Capacitor contacts 4 with different capacitance parameters can be combined to meet different usage requirements. To facilitate identification of the capacitance parameters of the capacitor contact 4, the capacitor contact 4 is also provided with a color ring 12 on the periphery of the contact element 5 for identification. Different color rings 12 correspond to different capacitance parameters.

[0048] In the embodiment of the present invention, the capacitor contact 4 has the capacitance parameters listed in the following table, and the corresponding capacitance parameters are identified by the following color rings.

[0049] Table 1 Capacitor contact color ring comparison table

[0050] Serial number Nominal capacitance Color wheel color 1 20pF brown 2 100pF Purple 3 470pF yellow 4 1000pF black 5 4700pF red

[0051] The insulating component includes an insulator 2 and an insulating pressure plate 3. The grounding plate 7 is located between the insulator 2 and the insulating pressure plate 3 and, together with the insulating component, forms the insulating component. The insulator 2, the insulating pressure plate 3, and the grounding plate 7 are each provided with a through-hole for the capacitor contact 4 to pass through. These through-holes collectively constitute a contact mounting hole 11. A positioning spring 10 is fixedly mounted within the through-hole in the insulating pressure plate 3 for the capacitor contact 4 to pass through.

[0052] A stopper structure 21 is formed at the front end of the through hole in the insulator 2 that mates with the capacitor contact 4. This stopper structure 21 is used to axially stop and limit the front stepped surface 52 of the capacitor contact 4, thereby providing a prompt that the capacitor contact 4 is properly assembled. In this embodiment, the through hole in the insulator 2 that mates with the capacitor contact 4 has a stepped hole structure that is smaller at the front and larger at the back. The stopper structure 21 is a stepped surface formed at the junction of the small-diameter front end and the large-diameter rear end.

[0053] In an embodiment of the present invention, a grounding spring 8 is fixed to the outer periphery of the grounding plate 7. Preferably, the grounding spring 8 is fixed to the four sides of the grounding plate 7 by means of mortise and tenon joints, and the grounding plate 7 is in contact and conduction with the housing 1 through the grounding spring 8. A spring piece 9 is also fixed in the through hole on the grounding plate 7 that is adapted to the capacitor contact 4. The grounding plate 7 is in elastic contact and conduction with the tubular capacitor 6 of the capacitor contact 4 through the spring piece 9. Preferably, the spring piece 9 is annular as a whole, including an annular main body 91 and a plurality of fins 92 extending from the front end of the annular main body 91. A flange is formed on the tail end face of the annular main body 9, and the flange is connected and fixed to the end face of the grounding plate 7 by means of mortise and tenon joints to maintain reliable contact and conduction between the spring piece 9 and the grounding plate. Preferably, the outer diameter of the annular main body 91 is equivalent to the inner diameter of the through hole on the grounding plate 7 that is adapted to the capacitor contact 4.

[0054] In this embodiment of the present invention, the insulator 2, grounding plate 7, and insulating pressure plate 3 are sequentially connected from front to back to form an insulator component. During assembly, the grounding spring 8 and spring 9 are first installed on the grounding plate 7. The rear end face of the insulator 2 is then bonded to the front end face of the grounding plate 7, and the rear end face of the grounding plate 7 is then bonded to the front end face of the insulating pressure plate 3 to form the insulator component. Finally, the positioning spring 10 is installed in the annular groove of the insulating pressure plate 3, ultimately forming a three-flexible insulator component.

[0055] In the embodiment of the present invention, an inner ring platform 31 is further provided in the insulating pressure plate 3 . The inner circumference of the inner ring platform 31 is matched with the outer circumference of the outer ring platform 51 of the contact 5 with a small gap, which can play a role in correcting the capacitor contact 4 .

[0056] In the embodiment of the present invention, an interface sealing body 13 is bonded and fixed to the front end surface of the insulator 2 .

[0057] The present invention comprises an interface sealing body 13, an insulator 2, a grounding plate 7 and an insulating pressure plate 3. The insulating component is installed in the shell 1 from front to back, and the axial forward stop limit is achieved by the cooperation of the front peripheral stepped surface of the insulator 2 (formed by the diameter-changing surface at the connection between the front peripheral small-diameter part and the rear large-diameter part of the insulator 2) and the stepped surface inside the shell 1. At the same time, the insulating component and the shell 1 are also fixed by glue. Preferably, a glue filling groove is further provided in the shell 1 at a position corresponding to the rear end insulating pressure plate 3 of the insulating component, and the insulating component is fixed by the glue in the glue filling groove. In this embodiment, the insulating component is fixed to the shell 1 by the outer peripheral surface of the rear end of the insulating pressure plate 3. In other embodiments of the present invention, the insulating component can also be fixed in the shell 1 by other positioning structures. Preferably, the positioning structure is a positioning spring, which realizes the axial rearward limit of the insulating component.

[0058] In this embodiment of the present invention, an interface seal 14 is further provided within the housing 1. This interface seal 14 is bonded and fixed to the rear end of the insulating pressure plate 3 within the housing 1. Preferably, a first bonding location 15 where the insulating pressure plate 3 is bonded to the housing and a second bonding location 16 where the interface seal 14 is bonded to the housing 1 are axially connected front to back.

[0059] In other embodiments of the present invention, the insulator component is axially limited forward by an interface sealing body 14, and the interface sealing body 14 is bonded and fixed in the shell 1 or fixed in the shell 1 by other limiting structures, such as a positioning spring or a locking cap that is detachably fixed to the tail of the shell.

[0060] In the embodiment of the present invention, a rubber ring 17 for sealing the plug-in end housing is fixed to the inner side of the front end of the housing 1 , and the inner circumference of the rubber ring is connected to the outer circumference of the interface sealing body 13 .

[0061] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the present profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A removable filter connector comprising a housing (1) extending in an axial direction and an insulating component assembled in the housing (1), characterized in that: A contact mounting hole (11) is provided in the insulating component, a positioning spring (10) is fixedly installed in the contact mounting hole (11), and a contact (5) and a tubular capacitor (6) welded and fixed to the outer periphery of the contact (5) form a capacitor contact (4), and the capacitor contact (4) is fixedly positioned in the insulating component by the positioning spring (10); the tubular capacitor (6) is also in contact and conductive with a grounding plate (7) positioned and installed in the housing (1), and the outer periphery of the grounding plate (7) is in contact and conductive with the inner periphery of the housing (1).

2. The removable filter connector according to claim 1, characterized in that: The insulating component comprises an insulator (2) at the front end and an insulating pressure plate (3) at the rear end; the grounding plate (7) is located between the insulator (2) and the insulating pressure plate (3), and is bonded and fixed to the insulator (2) and the insulating pressure plate (3) to form an insulating component.

3. The removable filter connector according to claim 2, characterized in that: A spring piece (9) is fixed in the through hole in the grounding plate (7) for the capacitor contact piece (4) to pass through, and the grounding plate (7) is in contact and conduction with the tubular capacitor (6) via the spring piece (9).

4. The removable filter connector according to claim 3, characterized in that: The spring piece (9) comprises an annular body (91) and a plurality of elastic fins (92) extending from the front end of the annular body. The annular body (91) is arranged in a through hole on the grounding plate (7) and is fixed to the end face of the grounding plate (7) by a mortise and tenon joint through the outer peripheral edge of its rear end.

5. The removable filter connector according to claim 3, characterized in that: A grounding spring (8) is also fixed to the outer periphery of the grounding plate (7), and the grounding spring (8) is used to achieve contact and conduction between the grounding plate (7) and the inner peripheral surface of the housing (1).

6. The removable filter connector according to claim 5, characterized in that: An interface sealing body (13) is also bonded and fixed to the front end surface of the insulator (2).

7. The removable filter connector according to claim 6, characterized in that: The insulator component is fixed in the housing (1) by adhesive bonding, and the housing (1) is also provided with a stepped surface for axially stopping and cooperating with the front end stepped surface of the insulator (2) to provide a prompt that the insulator component is installed in place.

8. The removable filter connector according to claim 7, characterized in that: An interface sealing body (14) is fixedly assembled in the housing (1) and is in sealing cooperation with the rear end face of the insulator component.

9. The removable filter connector according to any one of claims 1 to 8, characterized in that: The contact piece (5) is provided with an annular platform (51) on its outer periphery, and the claws of the positioning spring (10) are supported on the rear end surface of the annular platform (51); the front end of the contact piece (5) is also provided with a stepped surface (52) for cooperating with the inner stop structure (21) of the insulating component to realize axial forward stop and limit.

10. The removable filter connector according to claim 9, characterized in that: The capacitor contact piece (4) has different capacitance parameters, and a color ring (12) for identifying the capacitance parameter is further provided on the periphery of the contact piece (5).

11. The removable filter connector according to claim 9, characterized in that: The rear end face of the tubular capacitor (6) is circumferentially limited by the front end face of the ring platform (51).

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