Filtering connector

Abstract

The utility model discloses a filtering connector, relates to the technical field of connectors, and solves the problems that in the prior art, an existing filtering connector is numerous in parts, complex in structure, low in reliability and high in cost. The filter comprises a filter circuit board and a conductive terminal arranged on the filter circuit board, an outer shell is arranged on the filter circuit board, a protective cap is mounted on the outer shell, an outer cover matched with the outer shell is arranged outside the filter circuit board and the conductive terminal, and a magnetic ring matched with the conductive terminal is arranged in the outer cover. And a sealing ring rib is arranged on one side, close to the filtering circuit board, of the outer cover, and is arranged on the periphery of the conductive terminal. The positive electrode connector has the advantages of fewer parts, simple overall structure, high reliability, low cost and the like, has the functions of a common connector, also has a filtering function and can improve the anti-electromagnetic interference capability of the positive electrode, and the sealing ring rib arranged on the outer sleeve can improve the sealing performance of the connector during installation.

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 connectors are devices developed by modifying the internal structure of ordinary electrical connectors and adding filter circuits (filter networks). They possess all the functions of ordinary electrical connectors while also having the characteristic of suppressing electromagnetic interference. Their principle is based on processing signals of different frequencies. For example, inductors block high-frequency signals while allowing low-frequency signals to pass, while capacitors have the opposite characteristic. These components are combined into different forms of circuits (such as RC, RL, LC, and RLC) to achieve filtering. In filtered connectors, these principles are used to build internal filter circuits to filter signals. As an important type of electrical connector, filtered connectors are widely used in automotive, aviation, aerospace, and communications fields. Filtered connectors are constructed by adding filters or filter circuits to the contacts of ordinary electrical connectors, effectively suppressing electromagnetic interference and ensuring signal integrity. Currently, filtered connectors on the market generally have complex structures, high costs, and poor reliability. Utility Model Content

[0003] To address the shortcomings of the aforementioned background technology, this utility model proposes a filter connector that solves the problems of existing filter connectors having numerous components, complex structures, low reliability, and high costs.

[0004] The technical solution of this utility model is implemented as follows: A filter connector includes a filter circuit board and conductive terminals disposed on the filter circuit board. The filter circuit board is provided with a housing, and a protective cap is installed on the housing. The filter circuit board and conductive terminals are provided with an outer cover that cooperates with the housing. A magnetic ring that cooperates with the conductive terminals is provided inside the outer cover. A sealing ring rib is provided on the side of the outer cover near the filter circuit board, and the sealing ring rib is disposed on the outer periphery of the conductive terminals.

[0005] More preferably, the conductive terminal is provided with an octagonal structure that mates with the outer casing and a knurled tooth structure that mates with the filter circuit board. The octagonal structure is provided with two sealing ring grooves. The conductive terminal is provided with two sealing ring grooves corresponding to the outer casing. The sealing ring grooves are located inside the magnetic ring.

[0006] More preferably, the filter circuit board has an octagonal hole that mates with the knurled tooth structure and a strip hole that mates with the octagonal hole. The filter circuit board has ear plates on both sides, and the ear plates have welding rings that connect to the bushing.

[0007] More preferably, the outer casing has a mounting groove 1 for mounting a filter circuit board in the middle of one side, and the bottom of the mounting groove 1 has an octagonal hole 2 corresponding to the octagonal structure.

[0008] More preferably, the other side of the outer shell is provided with two symmetrically arranged baffles, and each baffle is provided with a mounting groove that matches the protrusion on the protective cap.

[0009] More preferably, the outer casing is provided with two symmetrical bushings, which pass through the outer casing, the filter circuit board and the outer cover in sequence and are connected.

[0010] More preferably, the bushing is provided with at least two sealing ring grooves that mate with the outer shell.

[0011] More preferably, the protective cap is provided with a buckle that can be detachably fastened to a buckle groove on the outer shell.

[0012] More preferably, the sealing ring rib is disposed on the mounting surface of the outer cover, and the sealing ring rib is a double-layered annular protrusion.

[0013] More preferably, the outer cover is detachably connected with a stop corresponding to the screw hole on the conductive terminal.

[0014] The beneficial effects of this utility model are as follows: It has fewer parts, a simple overall structure, high reliability, and low cost. In addition to the functions of a common connector, it also has a filtering function, which improves the electromagnetic interference resistance of the positive electrode. The sealing ring rib on the outer sleeve increases the sealing performance during connector installation. The octagonal structure of the conductive terminals greatly improves the torque withstand capability of the connector. The double-layer sealing effect achieved through the sealing ring groove of the conductive terminals and bushing, as well as the liquid silicone, provides excellent sealing performance. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is a schematic diagram of the filter circuit board installation.

[0020] Figure 5 This is a top view of the present invention.

[0021] In the diagram: 1. Conductive terminal, 1-1. Octagonal structure, 1-2. Sealing ring groove one, 1-3. Sealing ring groove two, 1-4. Knurled tooth structure, 2. Outer shell, 2-1. Baffle, 2-2. Mounting groove, 2-3. Clip groove, 3. Bushing, 3-1. Sealing ring groove three, 4. Filter circuit board, 4-1. Ear plate, 4-2. Welding ring, 4-3. Octagonal hole one, 4-4. Strip hole, 5. Magnetic ring, 6. Outer cover, 6-1. Sealing ring rib, 7. Protective cap, 7-1. Clip rope, 7-2. Protrusion, 8. Stop block. Detailed Implementation

[0022] 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.

[0023] like Figures 1-3 As shown in Embodiment 1, a filter connector includes a filter circuit board 4 and conductive terminals 1 disposed on the filter circuit board 4. The filter circuit board 4 has a housing 2, on which a protective cap 7 is mounted. An outer cover 6, which mates with the housing 2, is provided around the filter circuit board 4 and conductive terminals 1. A magnetic ring 5, which mates with the conductive terminals 1, is provided inside the outer cover 6. A sealing ring rib 6-1 is provided on the side of the outer cover 6 near the filter circuit board 4, and the sealing ring rib 6-1 is located on the outer periphery of the conductive terminals 1. The sealing ring rib 6-1 on the outer cover increases the sealing performance between the connector and the mounting panel during installation. This device, in addition to possessing the functions of a conventional connector, adds a filter circuit board 4, thereby improving the electromagnetic interference resistance of the positive electrode. Furthermore, the overall structure is simple, with fewer components, greatly reducing costs.

[0024] In this embodiment, the conductive terminal 1 is provided with an octagonal structure 1-1 that mates with the outer shell 2 and a knurled tooth structure 1-4 that mates with the filter circuit board 4. The conductive terminal 1 is connected to the filter circuit board 4 through the knurled structure 1-2, and the conductive terminal 1 is connected to the outer shell 2 by integral injection molding. The octagonal structure 1-1 can improve the torque-bearing capacity of the conductive terminal 1 and the outer shell 2. The octagonal structure 1-1 of the conductive terminal 1 can prevent rotation between the conductive terminal 1 and the filter circuit board 4, allowing the connector to withstand higher torque. The octagonal structure 1-1 is provided with two sealing ring grooves 1-2; the sealing ring grooves 1-2 are located on the outside of the filter circuit board 4. The conductive terminal 1 is provided with two sealing ring grooves 1-3 corresponding to the outer cover 6. The cooperation of the sealing ring grooves 1-2 and 1-3 can increase the reliability of the overall connection of the device. With the cooperation of the outer shell 2 and the outer cover 6, the connection between the filter circuit board 4 and the conductive terminal 1 is more stable.

[0025] In this embodiment, the sealing ring groove 1-3 is located inside the magnetic ring 5. The magnetic ring 5 is encapsulated inside the outer cover 6, and the distance between the inner wall of the magnetic ring 5 and the conductive terminal 1 is 0.5~2mm. Preferably, the distance between the magnetic ring 5 and the conductive terminal 1 is 1mm, and the distance between the magnetic ring 5 and the bottom of the sealing ring groove 1-3 is 1.8mm. High structural reliability: The sealing effect of the connector is greatly improved by the sealing ring groove of the conductive terminal 1, the bushing 3, and the double-layer sealing rib of liquid silicone.

[0026] like Figure 4 As shown, in this embodiment, the filter circuit board 4 has an octagonal hole 4-3 that mates with the knurled structure 1-4 and a strip hole 4-4 that mates with the octagonal hole 4-3. The filter circuit board 4 has ear plates 4-1 on both sides, and each ear plate 4-1 has a welding ring 4-2 that connects to the bushing 3. The bushing 3 is connected to the outer shell 2 by integral injection molding and passes through the connecting hole 4-2. It is then connected to the filter circuit board 4 by laser welding to form a welding ring. The filter circuit board 4 has an octagonal hole 4-3 that mates with the knurled structure 1-2. Eight strip holes evenly distributed on the same ring are provided on the outer edge of the octagonal hole 4-3 to prevent excessive stress during the pressing process between the octagonal hole 4-3 and the knurled structure 1-2, which could damage the filter circuit board 4.

[0027] like Figure 2As shown in Embodiment 2, a filter connector differs from the technical solution of Embodiment 1 in that the housing 2 has a mounting groove for mounting the filter circuit board 4 in the middle of one side. The bottom of the mounting groove has an octagonal hole 2-1 corresponding to the octagonal structure 1-1. The octagonal hole 2-1 is a hole formed during the injection molding process of the housing 2, corresponding to the octagonal structure 1-1. Furthermore, the hole wall of the octagonal hole 2-1 has anti-detachment protrusions corresponding to the sealing ring groove. The conductive terminal 1 and the filter circuit board 4 are connected as an integral structure by injection molding. The sealing ring groove 1-2 is used to increase the connection stability and sealing between the conductive terminal 1 and the housing 2, and also facilitates the subsequent encapsulation.

[0028] In this embodiment, two symmetrically arranged baffles are provided on the other side of the outer shell 2. Each baffle has a mounting groove that mates with a protrusion on the protective cap. The outer shell 2 has two baffles, and each baffle has a snap-fit ​​groove that connects with the protective cap 7, providing a finger-proof function. The outer shell 2 has two symmetrical bushings 3, which pass sequentially through the outer shell 2, the filter circuit board 4, and the outer cover 6. Each bushing 3 has at least two sealing ring grooves 3-1 that mate with the outer shell 2. The sealing ring grooves 3-1 are two sequentially arranged annular grooves, which increase the sealing between the bushings 3 and the filter circuit board 4 and the outer shell 2.

[0029] In this embodiment, the protective cap 7 is provided with a buckle 7-1 that can be detachably fastened to the buckle groove 2-3 on the outer shell 2. The buckle on the outer shell 2 connects the protective cap to the outer shell 2, and the buckle prevents the protective cap from being lost after it is removed from the baffle.

[0030] like Figure 5 As shown, in this embodiment, the sealing ring rib 6-1 is disposed on the mounting surface of the outer cover 6, and the sealing ring rib 6-1 is a double-layered annular protrusion. The double-layered annular protrusion is used to ensure the sealing and stability of the device during installation.

[0031] In this embodiment, the outer cover 6 is detachably connected to a stop 8 corresponding to the screw hole on the conductive terminal 1. The end of the outer cover 6 is provided with two cylindrical slots that mate with the cylinders on the stop 8. The cylindrical slots correspond to the two screw holes on the conductive terminal and play a protective role during the installation and removal of the ME thread to prevent debris from leaking out.

[0032] All other structures are the same as those in Example 1.

[0033] like Figures 1-5 As shown in Embodiment 3, a filter connector includes: a conductive terminal 1, a housing 2, a bushing 3, a filter circuit board 4, a magnetic ring 5, and liquid silicone 6.

[0034] The conductive terminal 1, used for transmitting current, is the main current transmission carrier. It is integrally formed with the housing 2 by injection molding and has an octagonal structure to improve the torque withstand capability of the connector. The conductive terminal has two sealing ring grooves to improve the sealing performance between the conductive terminal and the housing after injection molding. The conductive terminal also has knurled teeth, and the filter circuit board 4 is mounted on the knurled teeth by interference fitting, so that the conductive terminal 1 and the filter circuit board 4 are connected and conduction is achieved as the positive input.

[0035] The outer shell 2 serves as a protective structure and supports the loads of other components.

[0036] The bushing 3 is integrally formed with the outer shell 2 by injection molding. Its structure is knurled and has a sealing ring groove. After being integrally injection molded with the outer shell, it can improve air tightness and increase the bushing's release force, resulting in better reliability.

[0037] The filter circuit board 4 is equipped with filter components to perform filtering functions. The positive terminal of the filter circuit board 4 is connected to the conductive terminal 1, and the negative terminal is connected to the bushing 3 by laser welding. Furthermore, bolts are connected to the metal mounting panel through the bushing holes to achieve grounding.

[0038] The magnetic ring 5 is sleeved on the outside of the conductive terminal to improve the filtering effect.

[0039] The liquid silicone 6 is used to integrate the conductive terminal 1, housing 2, bushing 3, filter circuit board 4, and magnetic ring 5 into a single unit through liquid silicone injection molding, simultaneously ensuring the sealing of the overall internal structure. Sealing ribs are also provided on the outside, around the circumference of the bushing and the conductive terminal, to provide external sealing between the filter connector and the mounting panel. Furthermore, these sealing ribs employ a double-layer seal for improved sealing performance.

[0040] Filter connectors are mainly used in electronic devices that require shielding, isolation, and filtering. They have the functions of ordinary connectors, and without changing the installation and mating dimensions of the connector, a filtering circuit is added inside the connector, so that it can perform filtering, oscillation, delay, and other functions, as well as screening signals, filtering noise, stabilizing current, and suppressing electromagnetic interference.

[0041] 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, comprising a filter circuit board (4) and conductive terminals (1) disposed on the filter circuit board (4), characterized in that: The filter circuit board (4) is provided with a housing (2), and a protective cap (7) is installed on the housing (2). The filter circuit board (4) and the conductive terminal (1) are provided with an outer cover (6) that cooperates with the housing (2). The outer cover (6) is provided with a magnetic ring (5) that cooperates with the conductive terminal (1). The outer cover (6) is provided with a sealing ring rib (6-1) on the side near the filter circuit board (4). The sealing ring rib (6-1) is located on the outer periphery of the conductive terminal (1).

2. The filter connector according to claim 1, characterized in that: The conductive terminal (1) is provided with an octagonal structure (1-1) that mates with the outer shell (2) and a knurled tooth structure (1-4) that mates with the filter circuit board (4). The octagonal structure (1-1) is provided with two sealing ring grooves (1-2). The conductive terminal (1) is provided with two sealing ring grooves (1-3) that correspond to the outer cover (6). The sealing ring grooves (1-3) are located inside the magnetic ring (5).

3. The filter connector according to claim 2, characterized in that: The filter circuit board (4) has an octagonal hole (4-3) that mates with the knurled tooth structure (1-4) and a strip hole (4-4) that mates with the octagonal hole (4-3). The filter circuit board (4) has ear plates (4-1) on both sides. The ear plates (4-1) have welding rings (4-2) that connect to the bushing (3).

4. The filter connector according to any one of claims 1 to 3, characterized in that: The outer casing (2) has a mounting groove (4) for mounting a filter circuit board (4) in the middle of one side. The bottom of the mounting groove (4) has an octagonal hole (2) corresponding to the octagonal structure (1-1).

5. The filter connector according to claim 4, characterized in that: The outer shell (2) has two symmetrically arranged baffles (2-1) on the other side. Both baffles (2-1) have mounting grooves (2-2) that cooperate with the protrusions (7-2) on the protective cap (7).

6. The filter connector according to claim 5, characterized in that: The outer shell (2) is provided with two symmetrical bushings (3), which pass through the outer shell (2), the filter circuit board (4) and the outer cover (6) in sequence.

7. The filter connector according to claim 6, characterized in that: The bushing (3) is provided with at least two sealing ring grooves (3-1) that mate with the outer shell (2).

8. The filter connector according to claim 7, characterized in that: The protective cap (7) is provided with a buckle (7-1) that can be detachably fastened to the buckle groove (2-3) on the outer shell (2).

9. The filter connector according to claim 8, characterized in that: The sealing ring rib (6-1) is provided on the mounting surface of the outer cover (6), and the sealing ring rib (6-1) is a double-layer annular protrusion.

10. The filter connector according to any one of claims 1 to 3, 5, 6, 8 and 9, characterized in that: The outer cover (6) is detachably connected to a stop (8) corresponding to the screw hole on the conductive terminal (1).

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