Fakra connector shielding device and Fakra connector

Abstract

The utility model relates to the technical field of connectors, in particular to a Fakra connector shielding device and a Fakra connector. The surface of the Fakra connector shielding device is of a honeycomb structure, and the Fakra connector shielding device comprises a plurality of honeycomb structures, an electromagnetic wave absorption block and a lining. Wherein an electromagnetic wave absorption block is embedded in each honeycomb structure, a lining is arranged between the electromagnetic wave absorption block and the inner wall of the honeycomb structure, the edge of the bottom of the electromagnetic wave absorption block is in contact with the inner wall of the honeycomb structure, and a gap is reserved between the bottom of the electromagnetic wave absorption block and the bottom of the honeycomb structure. According to the Fakra connector of the utility model, after the plug male end assembly and the plug female end assembly are plugged in each other, the male head insertion core and the female head insertion core are conducted with each other; and the shielding device covers the overlapped part of the front end of the male plug core and the front end of the female plug core, so that external electromagnetic waves can be effectively absorbed and reflected, and the interface is ensured not to be interfered by the outside.

Description

Technical Field

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

[0002] Fakra connectors are electromechanical connectors used to connect electrical terminals of devices, or to extend RF or video cables for mating purposes, primarily for creating circuit connections. When used as extension cables, they generally consist of a male plug assembly and a female plug assembly, connected by a socket joint. Shielded wires are crimped at both ends to form a temporary connection, commonly used in portable devices where electrical connections are achieved through assembly and disassembly tools. They are widely used in vehicle-mounted auxiliary operating systems, intelligent driving systems, and high-definition video transmission auxiliary systems; characterized by stable signal, high transmission speed, and high cost-effectiveness.

[0003] In practical use, shielded wires have a certain shielding effect, but Fakra connectors themselves do not have a shielding function. In certain environments, the mating points of Fakra connectors will be affected by the surrounding magnetic field interference. Therefore, there is an urgent need for an effective method to suppress the interference. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a Fakra connector shielding device and a Fakra connector.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] This utility model proposes a Fakra connector shielding device with a honeycomb structure on its surface, including: a plurality of honeycomb structures, an electromagnetic wave absorbing block and an inner liner; wherein, an electromagnetic wave absorbing block is embedded in each honeycomb structure, an inner liner is provided between the electromagnetic wave absorbing block and the inner wall of the honeycomb structure, the bottom edge of the electromagnetic wave absorbing block contacts the inner wall of the honeycomb structure, and a gap is left between the bottom of the electromagnetic wave absorbing block and the bottom of the honeycomb structure.

[0007] Preferably, the electromagnetic wave absorbing block is elongated and its cross-sectional shape is the same as the inner surface of the lining; the four corners of the bottom of the electromagnetic wave absorbing block are in contact with the inner wall of the honeycomb structure.

[0008] Preferably, the bottom thickness of the honeycomb structure is ≥1mm.

[0009] Preferably, the honeycomb structure is made of pure iron with a zinc or tin plating on the surface.

[0010] Preferably, the lining is a non-metallic insulating material with a thickness of ≥0.8mm.

[0011] Preferably, the gap between the bottom of the electromagnetic wave absorbing block and the bottom of the honeycomb structure is shaped like an inverted dome.

[0012] This utility model also relates to a Fakra connector, including: a male plug assembly and a female plug assembly, which, when inserted, allow the male pins and the female socket to conduct to each other; it also includes: the aforementioned shielding device, which covers the periphery of the overlapping portion at the front of the male pins and the female socket.

[0013] Preferably, the male plug assembly includes: a male pin, a male insert, a male insulating layer, and a male connector; wherein, the male insert is a tubular body, the male pin is located inside the male insert, and the male insulating layer is provided on the inner front wall of the male insert, insulating the male pin from the male insert; the first coaxial shielding wire core is connected to the rear end of the male pin, and the two are electrically connected; the front part of the shielding layer of the first coaxial shielding wire is inserted into the rear part of the male insert, and the two are electrically connected; the male connector is located on the outer periphery of the connection between the first coaxial shielding wire and the male plug assembly, and the electromagnetic wave shielding device is a tubular body fixed to the front end of the male connector; the female plug assembly includes: a female socket and a female insert. The system comprises a female connector with an insulating layer and a female connector; the female connector core is tubular, the female connector socket is located inside the female connector core, and the female connector insulating layer is located between the female connector core and the female connector socket, insulating the female connector socket and the female connector core; the second coaxial shield core is connected to the rear end of the female connector socket, and the two are electrically connected; the front part of the second coaxial shield layer is inserted into the rear part of the female connector core, and the two are electrically connected; the front end of the female connector socket is tubular; the female connector is located on the outer periphery of the connection between the second coaxial shield and the plug female terminal assembly; after the plug male terminal assembly and the plug female terminal assembly are plugged together, the male connector pin is inserted into the female connector socket, the male connector core is inserted into the female connector core, and the male and female connectors are mated.

[0014] Preferably, the male plug assembly further includes: a first coaxial shielding layer clamping ring, the outer diameter of the rear end of the male plug is conical, the first coaxial shielding layer is fitted into the rear end of the male plug, and the first coaxial shielding layer clamping ring is located on the outermost layer of the two, and the three are clamped together to form a whole; the female plug assembly further includes: a second coaxial shielding layer clamping ring, the outer diameter of the rear end of the female plug is conical, the second coaxial shielding layer is fitted into the rear end of the female plug, and the second coaxial shielding layer clamping ring is located on the outermost layer of the two, and the three are clamped together to form a whole; the front end of the female plug has a petal structure, the middle part has a diameter-changing structure, and the female plug isolation layer is located from the diameter-changing part to the front end; the outer diameter of the front end of the female plug isolation layer is smaller than the outer diameter of the rear end, and the outer diameter of the rear end is adjacent to the inner wall of the female plug.

[0015] Preferably, the male plug assembly further includes: a male clamping block; a first through hole is provided in the middle part of the male plug, and a first groove is provided on the outer side wall of the male plug core; the male clamping block is movably disposed in the first through hole and the first groove; the female plug assembly further includes: a female clamping block; the inner diameter of the middle part of the female plug is smaller than the inner diameters of both ends, a second through hole is provided in the middle part of the female plug, and a second groove is provided on the outer side wall of the female plug core; the female clamping block is movably disposed in the second through hole and the second groove.

[0016] The present invention relates to a Fakra connector shielding device and a Fakra connector. After the male plug assembly and the female plug assembly are inserted, the male and female plug cores are electrically connected to each other. The shielding device covers the overlapping part of the front end of the male plug core and the front end of the female plug core, which can effectively absorb and reflect external electromagnetic waves and ensure that the interface is not interfered with by the outside world. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the Fakra connector shielding device in the embodiment;

[0019] Figure 2 This is a partial enlarged view of the honeycomb structure in the embodiment;

[0020] Figure 3 Assembly drawing for the male and female end assemblies;

[0021] Figure 4 for Figure 3 A sectional view of the assembly drawing;

[0022] Figure 5 This is a schematic diagram of the male connector assembly.

[0023] Figure 6 This is a schematic diagram of the female plug assembly. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Components not described in detail in the following embodiments are all prior art, and those skilled in the art can use conventional technical means in this field. The positional descriptions such as "bottom surface," "side surface," "top surface," "bottom end," "bottom," and "sequential" used in the following embodiments are only for clearly describing the relative positional relationship between components and are not intended to limit the protection scope of this utility model.

[0026] like Figure 1 and 2 As shown: This utility model proposes a Fakra connector shielding device with a honeycomb structure on its surface, including: a plurality of honeycomb structures 163, electromagnetic wave absorbing blocks 161, and an inner liner 162; wherein, an electromagnetic wave absorbing block 161 is embedded in each honeycomb structure 163, and an inner liner 162 is provided between the electromagnetic wave absorbing block 161 and the inner wall of the honeycomb structure 163, the bottom edge of the electromagnetic wave absorbing block 161 contacts the inner wall of the honeycomb structure 163, and a gap is left between the bottom of the electromagnetic wave absorbing block 161 and the bottom of the honeycomb structure 163.

[0027] The improved shielding effect of shielding device 16, as tested, is determined by the following factors:

[0028] 1. The material of the honeycomb structure 163 and its bottom thickness A, as well as the distance between the electromagnetic wave absorbing block 161 and the honeycomb structure 163, that is, the thickness of the inner lining 162, are closely related.

[0029] Preferably, the inner lining 162 is made of a non-metallic insulating material, such as rubber, with a thickness ≥0.8mm; the honeycomb structure 163 is made of pure iron, which is prone to magnetic leakage, and the refraction of pure iron will be enhanced after surface zinc or tin plating.

[0030] Preferably, the bottom thickness A of the honeycomb structure 163 is ≥1mm. The thickness A should be made as thick as possible within the space constraints. The thicker the structure, the stronger its ability to absorb magnetic fields and the less interference it will cause.

[0031] Preferably, the electromagnetic wave absorbing block 161 is elongated and has the same cross-sectional shape as the inner surface of the lining 162. It is inserted into the slot of the honeycomb structure 163 along its length. The four corners of the bottom of the electromagnetic wave absorbing block 161 are in contact with the inner wall of the bottom of the honeycomb structure 163. The smaller the contact area, the better the magnetic field absorption effect.

[0032] 2. Preferably, according to the principle of refraction, the gap E between the bottom of the electromagnetic wave absorbing block 161 and the bottom of the honeycomb structure 163 is inverted dome-shaped, which has the best effect, while right-angled materials have greater refraction loss.

[0033] 3. Preferably, the magnetic field lines have some space. In this design, the inner lining 162 is made of rubber, which, like a cell phone signal, requires space to refract in the air. If the flashlight bulb is completely encased in the bulb, the effect will definitely be poor because a large amount of light will be lost through refraction.

[0034] Magnetic field shielding principle: Electromagnetic wave absorbing block 161 can reflect part of the magnetic field and absorb part of the magnetic field. The polarities of the reflected magnetic field and the absorbed magnetic field are exactly opposite. The absorbed magnetic field forms a magnetic field in electromagnetic wave absorbing block 161. Electromagnetic wave absorbing block 161 forms N pole and S pole with magnetic field. After being refracted by honeycomb structure 163, the ability to reflect magnetic field is enhanced, thereby improving the magnetic field shielding ability.

[0035] This utility model also relates to a Fakra connector, such as Figure 3 and 4 As shown, it includes: a male plug assembly 1 and a female plug assembly 2, which, when plugged together, allow the male pin 18 and the female socket 24 to communicate with each other; it also includes: the shielding device 16 in the above embodiment, which covers the periphery of the overlapping portion at the front of the male pin 18 and the female socket 24.

[0036] In this embodiment, the shielded cable used with the Fakra connector is prior art. Preferably, the first coaxial shielded cable 11 includes a first coaxial shielded cable core 110 and a first coaxial shielded cable shielding layer 13, with the first coaxial shielded cable shielding layer 13 covering the outer periphery of the first coaxial shielded cable core 110. The second coaxial shielded cable 27 includes a second coaxial shielded cable core 25 and a second coaxial shielded cable shielding layer 28, with the second coaxial shielded cable shielding layer 28 covering the outer periphery of the second coaxial shielded cable core 25.

[0037] Preferably, such as Figure 5 As shown, the male plug assembly 1 includes: a male pin 18, a male plug core 15, a male insulating layer 17, and a male connector 14; wherein, the male plug core 15 is a tubular body, the male pin 18 is located inside the male plug core 15, the male plug insulating layer 17 is provided on the inner wall of the front part of the male plug core 15, and the male plug insulating layer 17 insulates the male pin 18 from the male plug core 15; the first coaxial shielding wire core 110 is connected to the rear end of the male pin 18, and the two are mutually conductive; the front part of the first coaxial shielding wire shielding layer 13 is inserted into the rear part of the male plug core 15, and the two are mutually conductive; the male connector 14 is located on the outer periphery of the connection between the first coaxial shielding wire 11 and the male plug assembly 1, and the electromagnetic wave shielding device 16 is a tubular body and fixed to the front end of the male connector 14.

[0038] Preferably, the male connector pin 18 has a cylindrical front end and a tubular rear end with a solder hole. The first coaxial shielded wire core 110 is inserted into the tubular rear end of the male connector pin 18 and then soldered.

[0039] Preferably, the rear end of the male connector 15 is conical, which facilitates the insertion of the first coaxial shielding layer 13. A special tool is used to press the first coaxial shielding layer clamping ring 12, the first coaxial shielding layer 13, and the rear end of the male connector 15 together to form a whole.

[0040] More preferably, the male plug assembly 1 further includes: a first coaxial shielding layer clamping ring 12, the outer circle of the rear end of the male plug 15 is conical, the first coaxial shielding layer 13 is fitted into the rear end of the male plug 15, and the first coaxial shielding layer clamping ring 12 is located on the outermost layer of the two, and the three are clamped together to form a whole.

[0041] More preferably, the male plug assembly 1 further includes: a male clamping block 19; a first through hole is provided in the middle part of the male plug 14, and a first groove is provided on the outer side wall of the male plug core 15; the male clamping block 19 is movably disposed in the first through hole and the first groove, and plays a fixing role.

[0042] Preferably, such as Figure 6 As shown, the plug female assembly 2 includes: a female socket 24, a female core 22, a female insulating layer 23, and a female connector 29; wherein, the female core 22 is a tubular body, the female socket 24 is located inside the female core 22, and the female insulating layer 23 is disposed between the female core 22 and the female socket 24, insulating the female socket 24 and the female core 22; the second coaxial shielded wire core 25 is connected to the rear end of the female socket 24, and the two are electrically connected; the second coaxial shielded wire core 25 is connected to the female socket 24. The front part of the shielding layer 28 is fitted into the rear part of the female connector core 22, and the two are interconnected; the front end of the female connector hole 24 is a tubular body; the female connector 29 is located on the outer periphery of the connection between the second coaxial shielding line 27 and the plug female terminal assembly 2; after the plug male terminal assembly 1 and the plug female terminal assembly 2 are inserted into each other, the male connector pin 18 is inserted into the female connector hole 24, the male connector core 15 is inserted into the female connector core 22, and the two are interconnected; the female connector isolation layer 23 is located inside the male connector core 15; the male connector 14 and the female connector 29 are connected.

[0043] Preferably, the front end of the female connector 24 is a tubular body with a smooth inner wall, the middle part is a solid cylinder with a diameter limiting boss, and the rear end is a tubular body with a soldering hole; the second coaxial shielded wire core 25 is inserted into the rear tubular body of the female connector 24 and then soldered.

[0044] More preferably, the plug female assembly 2 further includes: a second coaxial shielding layer clamping ring 26, the outer circle of the rear end of the female plug core 22 is conical, the second coaxial shielding layer 28 is fitted into the rear end of the female plug core 22, the second coaxial shielding layer clamping ring 26 is located on the outermost layer of the two, and the three are clamped together to form a whole; the front end of the female plug core 22 is provided with a petal structure, which has a tightening function, and the middle part is provided with a diameter changing structure, and the female head isolation layer 23 is located from its diameter changing part to the front end; the outer diameter of the front end of the female head isolation layer 23 is smaller than the outer diameter of the rear end, and the outer diameter of the rear end is adjacent to the inner wall of the female plug core 22.

[0045] Preferably, the larger portion of the rear outer diameter of the female connector isolation layer 23 is tightly fitted together with the inner wall of the female connector core 22, and the rear end of the female connector core 22 is conical, which facilitates the pressing of the second coaxial shielding layer 28 and the rear end of the Fakra female connector core 22 into a whole.

[0046] More preferably, the plug female terminal assembly 2 further includes: a female head clamping block 210; the inner diameter of the middle part of the female head 29 is smaller than the inner diameter of both ends, a second through hole is provided in the middle part, and a second groove is provided on the outer side wall of the female head plug 22; the female head clamping block 210 is movably disposed in the second through hole and the second groove, and plays a fixing role.

[0047] In this embodiment, the male connector isolation layer 17, male connector 14, male connector clamping block 19, female connector isolation layer 23, female connector 29, and female connector clamping block 210 are all non-metallic insulating materials.

[0048] In this embodiment, the male connector 14 and the female connector 29 are respectively designed with locking buckle connectors on their exteriors. The female connector 29 is also provided with a quick-release pressure handle on its exterior, and a protective sleeve to prevent misoperation is designed above the locking buckle.

[0049] In the above embodiment, after the male plug assembly 1 and the female plug assembly 2 are plugged in, the male plug core 15 and the female plug core 22 are interconnected; the shielding device 16 covers the overlapping part of the front end of the male plug core 15 and the front end of the female plug core 22, which can effectively absorb and reflect external electromagnetic waves and ensure that the interface is not interfered with by the outside world.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions, and variations to the above embodiments within the scope of the present invention. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

Claims

1. A Fakra connector shielding device, characterized in that, Its surface has a honeycomb structure, including: several honeycomb structures (163), electromagnetic wave absorbing blocks (161) and inner lining (162); wherein, each honeycomb structure (163) is inlaid with an electromagnetic wave absorbing block (161), and an inner lining (162) is provided between the electromagnetic wave absorbing block (161) and the inner wall of the honeycomb structure (163), the bottom edge of the electromagnetic wave absorbing block (161) is in contact with the inner wall of the honeycomb structure (163), and there is a gap between the bottom of the electromagnetic wave absorbing block (161) and the bottom of the honeycomb structure (163).

2. The Fakra connector shielding device according to claim 1, characterized in that, The electromagnetic wave absorbing block (161) is long and narrow, and its cross-sectional shape is the same as the inner surface of the lining (162); the four corners of the bottom of the electromagnetic wave absorbing block (161) are in contact with the inner wall of the honeycomb structure (163).

3. The Fakra connector shielding device according to claim 1, characterized in that, The bottom thickness of the honeycomb structure (163) is ≥1mm.

4. The Fakra connector shielding device according to claim 1, characterized in that, The honeycomb structure (163) is made of pure iron with a surface plated with zinc or tin.

5. The Fakra connector shielding device according to claim 1, characterized in that, The inner lining (162) is a non-metallic insulating material with a thickness ≥0.8mm.

6. The Fakra connector shielding device according to claim 1, characterized in that, The gap between the bottom of the electromagnetic wave absorbing block (161) and the bottom of the honeycomb structure (163) is shaped like an inverted dome.

7. A Fakra connector, comprising: The plug male terminal assembly (1) and the plug female terminal assembly (2) are connected to each other after being plugged in; characterized in that it further includes: a shielding device (16) as described in any one of claims 1-6, covering the periphery of the overlapping portion at the front of the male terminal pin (18) and the female terminal hole (24).

8. The Fakra connector according to claim 7, characterized in that, The plug male terminal assembly (1) includes: male pin (18), male plug core (15), male insulating layer (17), and male connector (14); wherein, the male plug core (15) is a tubular body, the male pin (18) is located inside the male plug core (15), the male plug core (15) is provided with a male insulating layer (17) on the front inner wall of the male plug core (15), and the male insulating layer (17) insulates the male pin (18) from the male plug core (15); the first coaxial shielding wire core (110) is connected to the rear end of the male pin (18), and the two are interconnected; the front part of the first coaxial shielding wire shielding layer (13) is inserted into the rear part of the male plug core (15), and the two are interconnected; the male connector (14) is located on the outer periphery of the connection between the first coaxial shielding wire (11) and the plug male terminal assembly (1), and the electromagnetic wave shielding device (16) is a tubular body and fixed to the front end of the male connector (14); The plug female assembly (2) includes: a female socket (24), a female core (22), a female insulating layer (23), and a female (29); wherein, the female core (22) is a tubular body, the female socket (24) is located inside the female core (22), the female insulating layer (23) is disposed between the female core (22) and the female socket (24), and the female insulating layer (23) insulates the female socket (24) and the female core (22); the second coaxial shielded wire core (25) is connected to the rear end of the female socket (24), and the two They are mutually conductive; the front part of the shielding layer (28) of the second coaxial shielding wire is inserted into the rear part of the female connector core (22), and the two are mutually conductive; the front end of the female connector hole (24) is a tubular body; the female connector (29) is located on the outer periphery of the connection between the second coaxial shielding wire (27) and the plug female terminal assembly (2); after the plug male terminal assembly (1) and the plug female terminal assembly (2) are inserted, the male connector pin (18) is inserted into the female connector hole (24), the male connector core (15) is inserted into the female connector core (22), and the male connector (14) and the female connector (29) are connected.

9. The Fakra connector according to claim 8, characterized in that, The male plug assembly (1) also includes: a first coaxial shielding layer clamping ring (12), the outer circle of the rear end of the male plug (15) is conical, the first coaxial shielding layer (13) is fitted into the rear end of the male plug (15), the first coaxial shielding layer clamping ring (12) is located on the outermost layer of the two, and the three are clamped together to form a whole; The plug female assembly (2) also includes: a second coaxial shielding layer clamping ring (26), the outer circle of the rear end of the female plug (22) is conical, the second coaxial shielding layer (28) is fitted into the rear end of the female plug (22), the second coaxial shielding layer clamping ring (26) is located on the outermost layer of the two, and the three are clamped together to form a whole; the front end of the female plug (22) is provided with a petal structure, the middle part is provided with a diameter-changing structure, and the female isolation layer (23) is located from its diameter-changing part to the front end; the outer diameter of the front end of the female isolation layer (23) is smaller than the outer diameter of the rear end, and the outer diameter of the rear end is close to the inner wall of the female plug (22).

10. The Fakra connector according to claim 8, characterized in that, The male plug assembly (1) also includes: a male clamping block (19); a first through hole is provided in the middle part of the male plug (14), and a first groove is provided on the outer side wall of the male plug core (15); the male clamping block (19) is movably disposed in the first through hole and the first groove; The plug female terminal assembly (2) also includes: a female head clamping block (210); the inner diameter of the middle part of the female head (29) is smaller than the inner diameter of both ends, and a second through hole is provided in the middle part, and a second groove is provided on the outer side wall of the female head plug (22); the female head clamping block (210) is movably disposed in the second through hole and the second groove.

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