Fakra connector

Abstract

The utility model discloses a Fakra connector, which comprises a first shell and a first shielding device, the first shell is of a hollow structure, and one end of the first shell is provided with a connecting hole. The first shielding shell is inserted into the first outer shell, a first outer rubber sleeve is arranged between the first shielding shell and the first outer shell, the first outer rubber sleeve is formed through injection molding, a rubber core and a signal terminal are arranged in the first shielding shell, and the same ends of the rubber core, the signal terminal and the first shielding shell are all exposed in the connecting hole; the first shielding shell is of a cylindrical structure formed by stretching a metal material. Plastic raw materials for injection molding can be accurately metered and injected according to actual requirements of products, waste of the materials is reduced, the shielding shell formed by stretching can bear external mechanical stress and impact, and production cost is reduced while product performance is guaranteed.

Description

Technical Field

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

[0002] Fakra connectors are radio frequency (RF) connectors used for high-speed signal transmission in automotive, communications, and industrial applications. A typical connector consists of a housing, a shielding shell, and metal terminals inserted into the center of the shielding shell. The metal terminals efficiently transmit various electrical signals, while the shielding shell provides shielding and reduces the impact of external electromagnetic interference on signal transmission. In related technologies, an outer rubber sleeve is also fitted around the shielding shell. This outer rubber sleeve is typically machined by turning, a subtractive manufacturing process that removes excess material using a cutting tool to achieve the desired shape. This machining process generates a large amount of chips, resulting in significant waste of raw materials and increased production costs. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a Fakra connector, which has the advantages of good transmission performance and low manufacturing cost.

[0004] The Fakra connector according to this utility model includes:

[0005] A first outer shell, the first outer shell being a hollow structure, and a connection hole being provided at one end of the first outer shell;

[0006] The first shielding shell is inserted into the interior of the first outer shell. A first outer rubber sleeve is provided between the first shielding shell and the first outer shell. The first outer rubber sleeve is formed by injection molding. The first shielding shell is provided with a rubber core and a signal terminal. The rubber core, the signal terminal and the same end of the first shielding shell are exposed in the connection hole. The first shielding shell is a cylindrical structure formed by stretching metal material.

[0007] The Fakra connector according to this utility model has at least the following beneficial effects: the outer sleeve is injection molded, and the shielding shell is drawn from metal material. Injection molding is a highly efficient molding process, allowing for precise measurement and injection of plastic raw materials according to the actual needs of the product, reducing material waste. Furthermore, the injection-molded outer sleeve requires minimal subsequent processing, further improving material utilization and ensuring product performance while reducing production costs. Additionally, drawing improves the strength, hardness, and toughness of the metal material, enabling the shielding shell to better withstand external mechanical stress and impact, thus enhancing the overall reliability and durability of the connector and ensuring the transmission quality of high-speed signals.

[0008] According to some embodiments of the present invention, the Fakra connector further includes a second outer shell and a second shielding shell, the second shielding shell being inserted into the interior of the second outer shell, the first shielding shell being inserted into the second shielding shell, and the first outer shell being inserted into the second outer shell.

[0009] According to some embodiments of the present invention, the Fakra connector has a plurality of cutting slits at one end where the first shielding shell is connected to the second shielding shell. The cutting slits divide one end of the first shielding shell into a plurality of petal-shaped portions, and the ends of the petal-shaped portions extend outward at an angle.

[0010] According to some embodiments of the present invention, the Fakra connector has a plurality of anti-fooling grooves on the inner wall of the first housing and a plurality of plug strips on the outer wall of the second housing, wherein the plug strips correspond one-to-one with the anti-fooling grooves.

[0011] According to some embodiments of the Fakra connector of this utility model, the first housing is further provided with a slot and an elastic element at one end facing the second housing. The elastic element is placed in the slot and is provided with a locking hole. A communication notch is provided between the slot and the connection hole. A connection protrusion is provided on the outer wall of the second housing. The connection protrusion passes through the communication notch and engages with the locking hole.

[0012] According to some embodiments of the present invention, the Fakra connector includes a pressing part and a connecting part. The pressing part is disposed at one end away from the card hole, and the elastic element is fixed to the first housing through the connecting part to form a rocker structure.

[0013] According to some embodiments of the Fakra connector of this utility model, a first positioning member is provided between the first outer sleeve and the first housing. The outer peripheral wall of the first outer sleeve is provided with a first positioning groove, and the inner side wall of the first housing is provided with a limiting part. The first positioning member includes an insert part and a snap-fit ​​part. The snap-fit ​​part is provided perpendicular to the insert part. The end of the snap-fit ​​part away from the insert part is provided with a serrated groove. The insert part is inserted into the end face of the first housing. The serrated groove engages with the limiting part. The snap-fit ​​part is snapped into the first positioning groove to restrict the radial movement of the first outer sleeve.

[0014] According to some embodiments of the Fakra connector of this utility model, a clamping piece is provided at one end of the first housing away from the connection hole, a wire is connected to one end of the signal terminal away from the connection hole, and a wire clamp is provided inside the clamping piece to clamp and position the wire.

[0015] According to some embodiments of the Fakra connector of this utility model, the inner peripheral wall of the first outer sleeve is provided with a pressing part, which abuts against the outer peripheral wall of the first shielding shell to restrict the first shielding shell from moving in a direction away from the connection hole.

[0016] According to some embodiments of the present invention, the Fakra connector has a first housing with a positioning buckle that is inclined toward the center line of the first housing. The outer peripheral wall of the first outer sleeve has a second positioning groove, and one end of the positioning buckle abuts against one side wall of the second positioning groove.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of the Fakra connector according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 An exploded view of the first shielding shell is shown;

[0021] Figure 3 for Figure 1 An exploded view of the second shielding shell is shown.

[0022] Figure 4 for Figure 1 The cross-sectional view of the second shielding shell is shown;

[0023] Figure 5 for Figure 1 A cross-sectional view of the first shielding shell is shown;

[0024] Figure 6 for Figure 1 The diagram shown is a structural schematic of the first shielding shell;

[0025] Figure 7 for Figure 1 The cross-sectional view of the first outer rubber sleeve is shown.

[0026] Explanation of icon numbers:

[0027] First outer shell 100; connecting hole 110; anti-fooling groove 120; slot 130; elastic element 140; snap hole 141; pressing part 142; connecting part 143; communicating notch 150; positioning buckle 160;

[0028] First shielding shell 200; rubber core 210; signal terminal 220; first outer rubber sleeve 230; first positioning groove 231; second positioning groove 232; pressing part 233; cutting slit 240; petal-shaped part 250;

[0029] Second housing 300; plug strip 310; connecting protrusion 320;

[0030] Second shielding shell 400;

[0031] First positioning element 500; Embedded part 510; Snap-fit ​​part 521; Serrated groove 521;

[0032] Clip plate 600; wire clamp 610. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Fakra connectors are radio frequency (RF) connectors specifically designed for high-speed signal transmission in automotive, communications, and industrial applications. They are primarily used to connect antennas, sensors, and other RF devices to ensure accurate and efficient signal transmission between different components. These connectors feature a unique interface design, typically rectangular in shape, with a locking mechanism to provide a stable connection and prevent signal interruption or interference. The connector typically consists of a housing, a shielding shell, and metal terminals inserted into the center of the shielding shell. The metal terminals efficiently transmit various electrical signals, while the shielding shell provides shielding, reducing the impact of external electromagnetic interference on signal transmission. An outer rubber sleeve is also fitted around the shielding shell. This outer sleeve is typically machined by turning, a subtractive manufacturing process that removes excess material using a cutting tool to achieve the desired shape. This machining process generates a large amount of chips, resulting in significant waste of raw materials and increased production costs.

[0039] Therefore, such as Figures 1 to 7As shown, the Fakra connector proposed in this utility model includes: a first outer shell 100 and a first shielding shell 200. The first outer shell 100 has a hollow structure, and a connection hole 110 is provided at one end of the first outer shell 100. The first shielding shell 200 is inserted into the interior of the first outer shell 100, and a first outer rubber sleeve 230 is provided between the first shielding shell 200 and the first outer shell 100. The first outer rubber sleeve 230 is formed by injection molding. The first shielding shell 200 contains a rubber core 210 and a signal terminal 220. The rubber core 210 serves as a support and insulation component, is made of high-performance insulating material, and can stably fix the signal terminal 220. The signal terminal 220 is used for electrical signal transmission. The same end of the core 210, signal terminal 220, and first shielding shell 200 is exposed in the connection hole 110. The core 210, signal terminal 220, and connection hole 110 are coaxially arranged. The first shielding shell 200 is a cylindrical structure formed by stretching metal material. Metal material has excellent electromagnetic shielding performance and can effectively resist external electromagnetic interference. Injection molding is a highly efficient molding process. Plastic raw materials can be precisely measured and injected according to the actual needs of the product, reducing material waste. Moreover, the injection-molded outer sleeve does not require a lot of subsequent processing, further improving material utilization, ensuring product performance, and reducing production costs. Stretch forming can improve the strength, hardness, and toughness of metal materials, thereby enabling the shielding shell to better withstand external mechanical stress and impact, improving the overall reliability and durability of the connector, and ensuring the transmission quality of high-speed signals.

[0040] In some embodiments of this utility model, such as Figure 1 , Figure 3 and Figure 4 As shown, the Fakra connector also includes a second housing 300 and a second shielding housing 400. The second shielding housing 400 is inserted into the second housing 300. The first shielding housing 200 and the second shielding housing 400 are mated together, as are the first housing 100 and the second housing 300. Both the first housing 100 and the second housing 300 are rectangular structures with corresponding dimensions and a smooth transition at the connection point. It should be noted that the second shielding housing 400 is a male shielding housing, and the first shielding housing 200 is a female shielding housing. The second shielding housing 400 has pins inside, and the first shielding housing 200 has sockets inside. The pins of the second shielding housing 400 are inserted into the sockets of the second shielding housing 400 to achieve electrical connection. The sidewalls of the first shielding housing 200 and the second shielding housing 400 are in contact with each other, forming a complete electromagnetic shielding cavity, thereby enhancing the resistance to electromagnetic interference and ensuring that internal signal transmission is not affected by external interference.

[0041] In some embodiments of this utility model, such as Figure 6As shown, the end where the first shielding shell 200 connects to the second shielding shell 400 is provided with multiple cutting slits 240. The cutting slits 240 divide one end of the first shielding shell 200 into multiple petal-shaped portions 250, the ends of which extend outward at an angle. The first shielding shell 200 can not only generate a certain elastic deformation when it is inserted with the second shielding shell 400, but also ensure stable contact pressure, thereby achieving a tight and stable electrical connection.

[0042] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the inner wall of the first housing 100 is provided with multiple anti-misalignment grooves 120, including a first insertion groove and a second insertion groove. The first insertion groove has a triangular structure, and the second insertion groove has a rectangular structure. The significant difference in shape between the first and second insertion grooves provides intuitive installation guidance and enhances connection stability. The outer wall of the second housing 300 is provided with multiple insertion strips 310. There are two insertion strips 310, and their shapes correspond to the first and second insertion grooves, respectively. The insertion strips 310 and the anti-misalignment grooves 120 are in a one-to-one correspondence, thereby ensuring the connection stability of the first housing 100 and the second housing 300, effectively preventing displacement or loosening, ensuring the stability of the entire connection device, and ensuring stable and reliable signal transmission.

[0043] In some embodiments of this utility model, such as Figures 1 to 5 As shown, the first outer shell 100 facing the second outer shell 300 is also provided with a slot 130 and an elastic member 140. The slot 130 has a trapezoidal structure, and the elastic member 140 is placed inside the slot 130. The elastic member 140 is provided with a locking hole 141. The slot 130 has an opening facing away from the center line of the first outer shell 100, and the opening corresponds to the locking hole 141. A connecting notch 150 is provided between the slot 130 and the connecting hole 110, connecting the slot 130 and the connecting hole 110. The outer wall of the second outer shell 300 is provided with a connecting protrusion 320. The connecting protrusion 320 has an inclined surface on the side facing the first outer shell 100. The connecting protrusion 320 passes through the connecting notch 150 and engages with the locking hole 141. During the sliding insertion of the first outer shell 100 and the second outer shell 300, the inclined surface can guide the connecting protrusion 320 to slide into the locking hole 141, quickly completing the installation. After the first housing 100 and the second housing 300 are slidably inserted into place, the connecting protrusion 320 can be firmly locked in the locking hole 141, thereby locking the first housing 100 and the second housing 300, preventing the connection from loosening or falling off, and ensuring that the connector can maintain stable signal transmission performance under complex working conditions.

[0044] Specifically, in some embodiments of this utility model, such as Figure 5As shown, the elastic member 140 includes a pressing part 142 and a connecting part 143. The pressing part 142 is located at the end opposite to the latch hole 141. The elastic member 140 is fixed to the first outer shell 100 through the connecting part 143 to form a rocker structure. The pressing part 142 provides a force application point. When it is necessary to disassemble the first outer shell 100 and the second outer shell 300, pressing the pressing part 142 will cause the end of the elastic member 140 opposite to the pressing part 142 to lift up with the connecting part 143 as a fulcrum. The connecting protrusion 320 will disengage from the latch hole 141 without the need for additional tools, making disassembly convenient.

[0045] In some embodiments of this utility model, such as Figure 2 As shown, a first positioning member 500 is provided between the first outer sleeve 230 and the first outer shell 100. A first positioning groove 231 is provided on the outer peripheral wall of the first outer sleeve 230, and a limiting portion is provided on the inner side wall of the first outer shell 100. The first positioning member 500 includes an insert portion 510 and a snap-fit ​​portion 520. The snap-fit ​​portion 520 is perpendicular to the insert portion 510, and there are two snap-fit ​​portions 520. The two snap-fit ​​portions 520 are symmetrically arranged along the centerline of the insert portion 510. An arc-shaped surface is provided between the two snap-fit ​​portions 520, and the curvature of the arc-shaped surface corresponds to the curvature of the side wall of the first positioning groove 231. A serrated groove 521 is provided at the end of the snap-fit ​​portion 520 opposite to the insert portion 510. The insert portion 510 is inserted into the end face of the first outer shell 100, and the serrated groove 521 engages with the limiting portion. The snap-fit ​​portion 520 is engaged in the first positioning groove 231 to restrict the radial movement of the first outer sleeve 230. The first outer sleeve 230 is firmly fixed inside the first outer shell 100 and will not easily loosen or fall off, ensuring the stability and reliability of signal transmission.

[0046] In some embodiments of this utility model, such as Figures 1 to 3 As shown, a wire is connected to the end of the signal terminal 220 opposite to the connection hole 110. A clamping piece 600 is provided at the end of the first housing 100 opposite to the connection hole 110. The clamping piece 600 secures and protects the connection portion 143 of the wire. The clamping piece 600 not only prevents damage to the connection point caused by external forces such as pulling and bending during daily use, but also provides initial positioning for the wire. A wire clamp 610 is provided inside the clamping piece 600. The wire clamp 610 clamps and positions the wire. Through the clamping force of the wire clamp 610, the wire is firmly fixed in the designated position, ensuring a stable and reliable connection between the wire and the signal terminal 220.

[0047] In some embodiments of this utility model, such as Figure 5 and Figure 7As shown, the inner peripheral wall of the first outer sleeve 230 is provided with a pressing part 233, which protrudes towards the center line of the first outer sleeve 230. The pressing part 233 abuts against the outer peripheral wall of the first shielding shell 200 to restrict the first shielding shell 200 from moving away from the connection hole 110, thereby preventing the connection between the internal signal terminal 220 and the external device from becoming loose due to positional displacement, and effectively ensuring the continuity and stability of signal transmission.

[0048] In some embodiments of this utility model, such as Figure 2 and Figure 7 As shown, the first outer shell 100 is provided with a positioning buckle 160, which is inclined towards the centerline of the first outer shell 100. The outer peripheral wall of the first outer sleeve 230 is provided with a second positioning groove 232, the width of which is greater than that of the first positioning groove 231. One end of the positioning buckle 160 abuts against one side wall of the second positioning groove 232. By abutting against the wall of the second positioning groove 232, the positioning buckle 160 prevents the first outer sleeve 230 from shifting due to uneven force, thereby ensuring that the first outer sleeve 230 is stably installed between the first outer shell 100 and the first shielding shell 200.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A Fakra connector, characterized in that, include: A first outer shell, the first outer shell being a hollow structure, and a connection hole being provided at one end of the first outer shell; The first shielding shell is inserted into the interior of the first outer shell. A first outer rubber sleeve is provided between the first shielding shell and the first outer shell. The first outer rubber sleeve is formed by injection molding. The first shielding shell is provided with a rubber core and a signal terminal. The rubber core, the signal terminal and the same end of the first shielding shell are exposed in the connection hole. The first shielding shell is a cylindrical structure formed by stretching metal material.

2. The Fakra connector according to claim 1, characterized in that: The Fakra connector further includes a second outer shell and a second shielding shell, the second shielding shell being inserted into the interior of the second outer shell, the first shielding shell being plugged into the second shielding shell, and the first outer shell being plugged into the second outer shell.

3. The Fakra connector according to claim 2, characterized in that: The end where the first shielding shell connects to the second shielding shell is provided with multiple cutting slits, which divide one end of the first shielding shell into multiple petal-shaped portions, and the ends of the petal-shaped portions extend outward at an angle.

4. The Fakra connector according to claim 2, characterized in that: The inner wall of the first housing is provided with a plurality of anti-foolproof grooves, and the outer wall of the second housing is provided with a plurality of plug strips, wherein each plug strip corresponds to one of the anti-foolproof grooves.

5. The Fakra connector according to claim 2, characterized in that: The first outer shell is provided with a slot and an elastic element at one end facing the second outer shell. The elastic element is placed in the slot and has a locking hole. A communication notch is provided between the slot and the connecting hole. The outer wall of the second outer shell is provided with a connecting protrusion. The connecting protrusion passes through the communication notch and engages with the locking hole.

6. The Fakra connector according to claim 5, characterized in that: The elastic element includes a pressing part and a connecting part. The pressing part is disposed at one end away from the card hole. The elastic element is fixed to the first outer shell through the connecting part to form a rocker structure.

7. The Fakra connector according to claim 1, characterized in that: A first positioning element is provided between the first outer rubber sleeve and the first outer shell. The outer peripheral wall of the first outer rubber sleeve is provided with a first positioning groove, and the inner side wall of the first outer shell is provided with a limiting part. The first positioning element includes an embedding part and a snap-fit ​​part. The snap-fit ​​part is provided perpendicular to the embedding part. The end of the snap-fit ​​part opposite to the embedding part is provided with a serrated groove. The embedding part is embedded in the end face of the first outer shell. The serrated groove engages with the limiting part. The snap-fit ​​part engages with the first positioning groove to limit the radial movement of the first outer rubber sleeve.

8. The Fakra connector according to claim 1, characterized in that: The first housing has a clamping piece at one end away from the connection hole, and the signal terminal is connected to a wire at one end away from the connection hole. A wire clamp is provided inside the clamping piece, and the wire clamp clamps and positions the wire.

9. The Fakra connector according to claim 1, characterized in that: The inner peripheral wall of the first outer rubber sleeve is provided with a pressing part, which abuts against the outer peripheral wall of the first shielding shell to restrict the first shielding shell from moving in a direction away from the connecting hole.

10. The Fakra connector according to claim 1, characterized in that: The first outer shell is provided with a positioning buckle, which is inclined toward the center line of the first outer shell. The outer peripheral wall of the first outer sleeve is provided with a second positioning groove, and one end of the positioning buckle abuts against one side of the groove wall of the second positioning groove.

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