A filter connector

Abstract

The utility model discloses a filter connector relates to connector technical field, solved the filter connector structure complex, the cost is higher, the poor reliability problem of prior art. The utility model discloses a filter circuit board, install the conductive terminal on filter circuit board, the conductive terminal sets up on the shell body one, filter circuit board installs on the shell body one and with the bushing that sets up on the shell body one is detachably connected, the shell body two for encapsulating filter circuit board is equipped on the shell body one, the magnetic ring that is equipped with with the conductive terminal cooperation on the shell body two. The utility model has the function of ordinary connector's outside, still has the filter function, can improve the positive pole's anti - electromagnetic interference ability, and the whole structure is simple, and the spare part is less, and the assembly is simple, and can be dismantled, greatly reduced production cost. The structural reliability of connector is high.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a filter connector. Background Technology

[0002] Filtered electrical connectors, as an important type of electrical connector, are widely used in automotive, aviation, aerospace, and communications industries. They are constructed by adding filters or filtering circuits to the contacts of ordinary electrical connectors, effectively suppressing electromagnetic interference and ensuring signal integrity. However, current filtered connectors on the market generally suffer from complex structures, high costs, and poor reliability. Furthermore, most connectors on the market are typically inserted from the outside in, often constrained by external space limitations.

[0003] Existing technology, such as the Chinese invention patent with publication number CN120320123A, discloses an internally mounted filter connector, which includes a mounting base. One side of the mounting base is a mounting end face, and the other side of the mounting base is provided with a filter circuit board and a detachable encapsulation shell for encapsulating the filter circuit board, which is connected to the mounting base. The mounting base also has conductive terminals and bushings that mate with the filter circuit board. The conductive terminals extend out of the encapsulation shell, and the encapsulation shell has a magnetic ring corresponding to the conductive terminals. Although this patent has a simple structure, it still has the problem that the filter circuit board cannot be removed and cannot be reused. Utility Model Content

[0004] To address the shortcomings of the aforementioned background technology, this utility model proposes a filter connector that solves the problems of complex structure, high cost, and poor reliability of existing filter connectors.

[0005] The technical solution of this utility model is implemented as follows: a filter connector includes a filter circuit board, on which conductive terminals are installed. The conductive terminals are disposed on a housing first. The filter circuit board is mounted on the housing first and is detachably connected to a bushing disposed on the housing first. The housing first is provided with an outer shell second for encapsulating the filter circuit board. The housing second is provided with a magnetic ring that cooperates with the conductive terminals.

[0006] More preferably, the filter circuit board has a terminal hole in the middle, and a terminal drum spring is provided in the terminal hole.

[0007] More preferably, the filter circuit board has bushing holes on both sides corresponding to the bushings, and bushing drum springs are provided in the bushing holes.

[0008] More preferably, the conductive terminal is provided with an octagonal structure that mates with the outer casing, the octagonal structure is provided with a sealing ring groove, and the conductive terminal is also provided with a spring retaining groove that mates with the terminal spring.

[0009] More preferably, the outer wall of the bushing is provided with oblique knurled teeth that mate with the outer shell and a drum spring groove that mates with the bushing drum spring.

[0010] More preferably, the outer casing is provided with a sealing groove, which corresponds to the bushing hole, and a sealing ring is provided in the sealing groove.

[0011] More preferably, the sealing groove is provided with a protruding structure for restricting the sealing ring.

[0012] More preferably, the outer casing 2 is provided with a sealing gasket for end face sealing.

[0013] More preferably, the second outer shell is provided with a limiting groove that is installed and cooperates with the limiting structure on the first outer shell.

[0014] More preferably, the outer shell is provided with a dispensing groove that mates with the magnetic ring.

[0015] The beneficial effects of this utility model are as follows: In addition to the functions of a common connector, this utility model also has a filtering function, which can improve the electromagnetic interference resistance of the positive electrode. The overall structure is simple, with fewer parts, easy assembly, and detachability, greatly reducing production costs. The connector has high structural reliability. The octagonal structure of the conductive terminals and the knurled teeth on the bushing enable the connector to withstand higher torque. The outer shell and the outer shell are connected by a limiting structure and a limiting groove through laser welding. A sealing ring is provided on the outer shell and a sealing gasket is provided on the outer shell, achieving overall sealing with good sealing effect and greater reliability. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention.

[0018] In the diagram: 1. Outer shell I, 1-1. Limiting structure, 2. Conductive terminal, 2-1. Octagonal structure, 2-2. Sealing ring groove, 2-3. Spring slot I, 3. Bushing, 3-1. Knurled teeth, 3-2. Spring slot II, 4. Terminal spring, 5. Bushing spring, 6. Filter circuit board, 6-1. Terminal hole, 6-2. Bushing hole, 7. Magnetic ring, 8. Outer shell II, 8-1. Limiting groove, 8-2. Glue dispensing groove hole, 9. Sealing gasket, 10. Sealing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 As shown in Embodiment 1, a filter connector includes a filter circuit board 6, on which conductive terminals 2 are mounted. The conductive terminals 2 are disposed on a housing 1. The filter circuit board 6 is mounted on the housing 1 and detachably connected to a bushing 3 disposed on the housing 1. The housing 1 has an outer shell 8 for encapsulating the filter circuit board 6, and the outer shell 8 has a magnetic ring 7 that mates with the conductive terminals 2. This device, in addition to possessing the functions of a conventional connector, also has a filtering function, which can improve the electromagnetic interference resistance of the positive electrode. The overall structure is simple, with fewer parts, easy assembly, and detachable, greatly reducing production costs. Applied to electronic devices requiring shielding, isolation, and filtering, the connector has high structural reliability. Based on the functions of a conventional connector, a filter circuit is added inside the connector, enabling it to perform filtering, oscillation, and delay functions, as well as signal screening, noise filtering, current stabilization, and electromagnetic interference suppression. The overall structure is simple, and the assembly process is straightforward.

[0021] like Figure 2As shown in Embodiment 2, a filter connector is provided. The filter circuit board 6 has a terminal hole 6-1 in its center, and a terminal spring 4 is installed inside the terminal hole 6-1. The filter circuit board 6 has bushing holes 6-2 on both sides corresponding to the bushing 3, and bushing springs 5 ​​are installed inside the bushing holes 6-2. Both the bushing springs 5 ​​and the terminal springs 4 cooperate with the filter circuit board 6, facilitating the disassembly of the filter circuit board 6, promoting its reuse, and reducing production costs. The conductive terminal 2 has an octagonal structure 2-1 that cooperates with the outer shell 1. The octagonal structure 2-1 has a sealing ring groove 2-2, and the conductive terminal 2 also has a spring retaining groove 2-3 that cooperates with the terminal spring 4. The outer wall of the bushing 3 has knurled teeth 3-1 that cooperate with the outer shell 1 and a spring retaining groove 3-2 that cooperates with the bushing spring 5. The octagonal structure 2-1 of the conductive terminal 2 and the knurled teeth 3-1 on the bushing 3 enable the connector to withstand higher torque.

[0022] All other structures are the same as in Example 1.

[0023] like Figure 2 As shown in Embodiment 3, a filter connector has a sealing groove on its outer shell 1, which corresponds to the bushing hole 6-2. A sealing ring 10 is provided within the sealing groove. The sealing groove also has a protruding structure for limiting the sealing ring 10. The sealing ring 10 is used to achieve a seal between the screw and the outer shell 1 when the screw is tightened onto the mounting panel.

[0024] In this embodiment, the second outer shell 8 is provided with a sealing gasket 9 for end face sealing. The second outer shell 8 is provided with a limiting groove 8-1 that mates with the limiting structure 1-1 on the first outer shell 1. The second outer shell 8 is provided with a dispensing groove 8-2 that mates with the magnetic ring 7. The first outer shell 1 and the second outer shell 8 are connected by laser welding through the limiting structure 1-1 and the limiting groove 8-1. A sealing ring 10 is provided on the first outer shell 1 and a sealing gasket 9 is provided on the second outer shell 8, achieving overall sealing with good sealing effect and greater reliability.

[0025] All other structures are the same as in Example 3.

[0026] like Figure 1 As shown in Embodiment 4, an assembled filter connector includes a housing 1, conductive terminals 2, bushings 3, terminal drum springs 4, bushing drum springs 5, a filter circuit board 6, a magnetic ring 7, a housing 8, a sealing gasket 9, and a sealing ring 10.

[0027] The outer casing 1 serves as a protective structure and supports other components. It is integrally formed with the conductive terminal 2 and bushing 3 via injection molding. A sealing groove is provided on the end face of the bushing 3 for installing the sealing ring 10, and a raised structure is provided inside the sealing ring groove to ensure that the sealing ring 10 does not fall off. When the screw is tightened onto the mounting panel, a seal is achieved between the screw and the outer casing 1. The outer casing 1 also has a limiting structure that cooperates with the limiting groove of the outer casing 8. This limiting structure is also a laser-welded area, fixed to the outer casing 8 by laser welding, and achieves a seal between the casings.

[0028] The conductive terminal 2, used for transmitting current, is the main current transmission carrier. It is integrally formed with the housing 1 by injection molding and has an octagonal structure to improve the torque withstand capability of the connector. The conductive terminal has a sealing ring groove to improve the sealing performance between the conductive terminal and the housing after injection molding. The end of the octagonal structure also has a cylindrical section that forms a dotted groove with the housing 1 to achieve secondary sealing. The conductive terminal also has a drum spring slot for mounting the terminal drum spring 4. Through the elastic contact between the terminal drum spring 4 and the central inner hole of the filter circuit board 6, the conductive terminal 2 is connected to the filter circuit board 6 as a positive input.

[0029] The bushing 3 is integrally formed with the outer shell 2 through injection molding. A section of oblique knurling is provided on its cylindrical surface after integral injection molding with the outer shell, improving the bushing's release force. The oblique knurling also provides torque resistance, resulting in better reliability. The cylindrical surface also has a drum spring slot for mounting the bushing drum spring 5. The bushing drum spring 5 elastically contacts the inner holes on both sides of the filter circuit board 6, connecting the bushing 3 to the filter circuit board 6. Furthermore, bolts are connected to the metal mounting panel through the bushing holes for grounding.

[0030] The terminal drum spring 4 is an elastic contact element that is installed in the drum spring slot of the conductive terminal 2 to enable the conductive terminal 2 to conduct to the positive terminal of the filter circuit board 6.

[0031] The bushing drum spring 5 is an elastic contact element that is installed in the drum spring slot of the bushing 3 to enable the bushing 3 to conduct to the negative terminal of the filter circuit board 6.

[0032] The filter circuit board 6 is equipped with filter components to perform filtering functions. The positive terminal of the filter circuit board 6 is connected to the conductive terminal 2 via a terminal spring 4, and the negative terminal is connected to the bushing 3 via a bushing spring 5. Furthermore, bolts are connected to the metal mounting panel through bushing holes to achieve grounding.

[0033] The magnetic ring 7 is disposed outside the conductive terminal and serves to improve the filtering effect. It is fixed to the adhesive groove of the outer casing 8 by adhesive bonding.

[0034] The outer shell 8 is made of a light-transmitting material and is connected and fixed to the outer shell 1 by laser welding to achieve a seal. It has adhesive grooves for fixing the magnetic ring 7.

[0035] The sealing gasket 9 is installed in the sealing ring groove of the housing 8, and the sealing gasket achieves the sealing between the connector and the mounting panel as well as the sealing around the bushing.

[0036] The sealing ring 10 is installed in the sealing ring groove of the outer shell 1. When it is fastened to the mounting panel by screws, it achieves a seal between the screws and the outer shell 1.

[0037] The magnetic ring 7 is glued to the outer shell 8, forming the first magnetic ring outer shell assembly. The conductive terminal 2, bushing 3, and outer shell 1 are integrally injection molded to form the second outer shell assembly. The terminal drum spring 4 is installed in the annular groove of the conductive terminal 2, and the bushing drum spring 5 is installed in the annular groove of the bushing 3. The filter circuit board 6 is crimped to the second outer shell assembly to form the PCBA assembly. The first outer shell assembly and the PCBA assembly are fixed together by laser welding to form the filter connector. Finally, the sealing ring 10 and the sealing gasket 9 are installed in the sealing groove of the filter connector. The overall structure of this filter connector is simple, and the assembly process is simple.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter connector, characterized in that: Includes a filter circuit board (6), on which a conductive terminal (2) is mounted. The conductive terminal (2) is disposed on a housing first (1). The filter circuit board (6) is mounted on the housing first (1) and is detachably connected to a bushing (3) disposed on the housing first (1). The housing first (1) is provided with an outer shell second (8) for encapsulating the filter circuit board (6). The housing second (8) is provided with a magnetic ring (7) that cooperates with the conductive terminal (2).

2. The filter connector according to claim 1, characterized in that: The filter circuit board (6) has a terminal hole (6-1) in the middle, and a terminal drum spring (4) is provided in the terminal hole (6-1).

3. The filter connector according to claim 2, characterized in that: The filter circuit board (6) has bushing holes (6-2) on both sides corresponding to the bushing (3), and bushing drum springs (5) are provided in the bushing holes (6-2).

4. The filter connector according to claim 3, characterized in that: The conductive terminal (2) is provided with an octagonal structure (2-1) that cooperates with the outer shell (1), and the octagonal structure (2-1) is provided with a sealing ring groove (2-2). The conductive terminal (2) is also provided with a drum spring groove (2-3) that cooperates with the terminal drum spring (4).

5. The filter connector according to claim 3 or 4, characterized in that: The outer wall of the bushing (3) is provided with oblique knurled teeth (3-1) that cooperate with the outer shell body (1) and a drum spring groove (3-2) that cooperates with the bushing drum spring (5).

6. The filter connector according to claim 5, characterized in that: The outer casing (1) is provided with a sealing groove, which corresponds to the bushing hole (6-2), and a sealing ring (10) is provided in the sealing groove.

7. The filter connector according to claim 6, characterized in that: The sealing groove is provided with a protruding structure for limiting the sealing ring (10).

8. The filter connector according to any one of claims 1 to 4, 6, and 7, characterized in that: The outer casing (8) is provided with a sealing gasket (9) for end face sealing.

9. The filter connector according to claim 8, characterized in that: The outer shell 2 (8) is provided with a limiting groove (8-1) that is installed and cooperates with the limiting structure (1-1) on the outer shell 1 (1).

10. The filter connector according to any one of claims 1 to 4, 6, 7, and 9, characterized in that: The outer shell (8) is provided with a dispensing groove (8-2) that cooperates with the magnetic ring (7).

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