Sinking plate type FAKRA connector

Abstract

The utility model discloses a sinking plate type FAKRA connector, and relates to the field of connectors, the sinking plate type FAKRA connector comprises a center pin, a medium body installed on the center pin, an outer conductor installed on the medium body and a plastic shell installed on the outer conductor, the inner wall of the outer conductor and the outer wall of the medium body form a first clamping position, and the inner wall of the outer conductor and the outer wall of the medium body form a second clamping position. The inner wall of the medium body and the center pin form a second clamping position, and the outer wall of the medium body and the inner wall of the outer conductor form a third clamping position. The connecting structure has the effects of enhancing the connecting stability and reliability and improving the convenience and rapidness of overall assembly.

Description

A recessed FAKRA connector Technical Field

[0001] This application relates to the field of connector technology, and in particular to a recessed FAKRA connector. Background Technology

[0002] In the automotive industry, connectors are indispensable key components in electrical systems, and their performance directly affects the stability and reliability of the entire automotive electrical system. With the rapid development of automotive technology, the requirements for connectors are becoming increasingly stringent. They not only need to possess excellent electrical performance but also be able to adapt to complex and ever-changing automotive environments to ensure accurate and efficient signal transmission.

[0003] Traditional automotive FAKRA connectors have a relatively simple structural design. The center pin and dielectric body often employ a simplified guide structure, lacking a large contact surface to ensure retention force during mating. Furthermore, the dielectric body is typically designed in a circular shape, which has limitations in practical applications. Additionally, the connection and assembly of the connector components mostly lack specialized fastening methods, resulting in an overall structurally unstable design.

[0004] However, these existing designs have obvious flaws. Due to the simple guiding structure and small contact surface, the connector has insufficient tensile strength and is prone to falling off when subjected to external forces, thus affecting the reliability of the product. At the same time, the impedance matching performance of the circular dielectric is poor, and the operating frequency is low, making it difficult to meet the requirements of modern automotive electrical systems for stable transmission of high-frequency signals. Summary of the Invention

[0005] To address the issues of insufficient tensile strength, easy detachment, poor impedance matching, and inability to meet the requirements of high-frequency signal transmission in existing connectors, this application provides a recessed FAKRA connector.

[0006] The recessed FAKRA connector provided in this application adopts the following technical solution:

[0007] A recessed FAKRA connector includes a center pin, a dielectric body mounted on the center pin, an outer conductor mounted on the dielectric body, and a plastic shell mounted on the outer conductor. The inner wall of the outer conductor and the outer wall of the dielectric body form a first locking position, the inner wall of the dielectric body and the center pin form a second locking position, and the outer wall of the dielectric body and the inner wall of the outer conductor form a third locking position.

[0008] By adopting the above technical solution, a center pin, dielectric body, outer conductor, and plastic shell are set in the recessed FAKRA connector. A first clamping position is formed between the inner wall of the outer conductor and the outer wall of the dielectric body, a second clamping position is formed between the inner wall of the dielectric body and the center pin, and a third clamping position is formed between the outer wall of the dielectric body and the inner wall of the outer conductor. These clamping positions provide multiple clamping effects, making the connection between the components tight and the tensile strength stable, so that the connector is not easy to fall off during use, thereby improving the reliability of the product. At the same time, it can ensure the stability of the relative position between the components, which is conducive to achieving good electrical connection, making the mechanical performance and high-frequency performance more stable, and optimizing and improving performance such as standing wave ratio, insertion loss, insertion loss consistency, and phase consistency.

[0009] Optionally, the central needle is integrally formed with barbs, which engage with an annular groove on the inner wall of the medium.

[0010] By adopting the above technical solution, the barbs on the central needle are engaged with the annular groove on the inner wall of the medium, which can firmly connect the central needle and the medium, enhance the overall stability, prevent relative movement or loosening between the two, and improve product reliability.

[0011] Optionally, the dielectric body and the outer conductor are interference-fitted.

[0012] By adopting the above technical solutions, tensile strength stability can be improved, making the product less likely to fall off and enhancing product reliability.

[0013] Optionally, the medium body comprises a cylindrical body, ribs integrally formed on the surface of the cylindrical body, and a base mounted on the cylindrical body. The outer diameter of the base is larger than the outer diameter of the cylindrical body, and the surface of the ribs is formed with a stepped surface.

[0014] By adopting the above technical solution, the dielectric material can increase the force-bearing area and friction when it cooperates with other components, ensuring the tensile strength stability of the three clamping positions, making it less likely for the dielectric material to detach from the outer conductor or center pin, and improving the reliability of the product. At the same time, this structure helps to optimize the spatial layout of the dielectric material, making it more rational and effective in contact with the outer conductor, reducing the impact of impedance changes on performance, ensuring high-frequency performance, improving the electrical performance of the product, and making the product applicable to higher frequencies.

[0015] Optionally, reinforcing ribs are symmetrically arranged along the axis on the outer surface of the plastic shell, and an extension block is integrally formed on the outer surface of the plastic shell. A groove is formed on the inner wall of the plastic shell, and a protrusion is integrally formed on the outer conductor. The protrusion and the groove are engaged.

[0016] By adopting the above technical solutions, the overall structural strength of the plastic shell is enhanced, making it more stable and less prone to deformation and damage during use. The integrated extension block on the outer surface of the plastic shell increases the contact area or connection points between the plastic shell and surrounding components, which helps to improve the stability and convenience of connector installation. The groove on the inner wall of the plastic shell and the integrated protrusion on the outer conductor engage to ensure that the plastic shell and the outer conductor are tightly connected together, guaranteeing the stability and reliability of the connection between the various components of the entire recessed FAKRA connector, thereby improving the overall performance and service life of the product.

[0017] Optionally, the outer conductor includes a substrate and a column mounted on the substrate. The substrate has an integrally formed partition on the side near the column. The partition has a through hole for the dielectric to pass through. The substrate has a semi-circular groove coaxial with the through hole. The substrate also has an oblong groove. The axis of the oblong groove is perpendicular to the axis of the through hole.

[0018] By adopting the above technical solution, the through hole allows the dielectric to be accurately installed in the designated position inside the outer conductor. The semi-circular groove on the base, which is coaxial with the through hole, optimizes the structural layout of the outer conductor, reduces material usage, and ensures that the outer conductor has appropriate strength. The waist-shaped groove on the base, whose axis is perpendicular to the axis of the through hole, further enhances the flexibility and adaptability of the outer conductor, allowing it to better adapt to different installation environments and connection requirements, thereby improving the reliability and applicability of the entire recessed FAKRA connector.

[0019] Optionally, the central pin has a stepped column structure, and the length of the central pin is greater than the length of the medium.

[0020] By adopting the above technical solution, performance can be easily adjusted, and the customer's requirements for product specifications can be met by changing the size of the center pin.

[0021] Optionally, the medium is made of plastic and the central pin is made of metal.

[0022] By adopting the above technical solutions, and taking into account the respective characteristics of plastic and metal materials, the performance of the recessed FAKRA connector is guaranteed while reducing costs and facilitating production and processing.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Three locking points make the tensile strength more stable, less prone to falling off, and improve the installation stability and reliability of the product;

[0025] 2. The interference fit between the dielectric and the outer conductor ensures excellent impedance matching, improves electrical performance, and allows for a higher applicable frequency.

[0026] 3. Stable mechanical and high-frequency performance, with optimized and improved performance in areas such as standing wave ratio, insertion loss consistency, and phase consistency;

[0027] 4. Convenient performance adjustment: By changing the size of the center pin, the product specifications can be met. Attached Figure Description

[0028] 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.

[0029] Figure 1 is a schematic diagram of the overall structural assembly of this application.

[0030] Figure 2 is an exploded view of the overall structure shown in this application.

[0031] Figure 3 is a cross-sectional view showing the overall structure of this application.

[0032] Figure 4 is a schematic diagram of the structure of the medium shown in this application.

[0033] Figure 5 is a schematic diagram of the structure of the plastic shell shown in this application.

[0034] Figure 6 is a schematic diagram of the structure of the central needle shown in this application.

[0035] Figure 7 is a schematic diagram of the structure of the outer conductor shown in this application.

[0036] Reference numerals: 1. Center pin; 2. Dielectric body; 3. Outer conductor; 4. Plastic shell; 5. First locking position; 6. Second locking position; 7. Third locking position; 8. Barb; 21. Column; 22. Rib; 23. Base; 24. Stepped surface; 10. Reinforcing rib; 11. Extension block; 12. Groove; 13. Protrusion; 31. Base; 32. Column; 33. Partition; 34. Through hole; 35. Semicircular groove; 36. Waist-shaped groove. Detailed Implementation

[0037] The present application will be further described in detail below with reference to Figures 1-7.

[0038] This application discloses a recessed FAKRA connector.

[0039] Referring to Figures 1, 2, and 3, the connector includes a center pin 1, a dielectric body 2, an outer conductor 3, and a plastic shell 4. The dielectric body 2 is mounted on the center pin 1, the outer conductor 3 is mounted on the dielectric body 2, and the plastic shell 4 is mounted on the outer conductor 3. The inner wall of the outer conductor 3 and the outer wall of the dielectric body 2 form a first locking position 5. The inner wall of the dielectric body 2 and the center pin 1 form a second locking position 6. The outer wall of the dielectric body 2 and the inner wall of the outer conductor 3 form a third locking position 7. This design improves the connector's tensile strength, making it less prone to detachment and enhancing product reliability. The multiple locking positions increase the tightness of the connection between the components, providing better resistance to external pulling forces.

[0040] Referring to Figure 6, the center pin 1 has an integrally formed barb 8, which can be engaged in the annular groove on the inner wall of the dielectric body 2. The center pin 1 has a stepped column structure to adapt to different installation requirements and electrical performance requirements. The center pin 1 is usually made of metal, such as copper alloy, which has good conductivity. Of course, other metal materials such as aluminum alloy can also be used, as long as they meet the requirements of conductivity and certain strength. The barb 8 is integrally formed during the processing of the center pin 1, with a sharp front end and a thicker rear end. This shape makes it easy to engage in the annular groove and not easy to fall out. The annular groove is pre-processed on the inner wall of the dielectric body 2, and its depth and width must be adapted to the barb 8. The length of the center pin 1 is greater than the length of the dielectric body 2. The excess length can be used to connect with other components or to achieve specific electrical functions.

[0041] Referring to Figure 4, the dielectric body 2 includes a cylindrical body 21, ribs 22 integrally formed on the surface of the cylindrical body 21, and a base 23 mounted on the cylindrical body 21. The outer diameter of the base 23 is larger than the outer diameter of the cylindrical body 21, and the surface of the ribs 22 has a stepped surface 24. The dielectric body 2 is generally made of plastic, such as polytetrafluoroethylene (PTFE), which has good insulation properties and chemical stability. Other plastic materials such as polypropylene can also be used. The cylindrical body 21 is the main part of the dielectric body 2, serving as a support and connector. The ribs 22 are evenly distributed on the surface of the cylindrical body 21, and the stepped surface 24 on its surface can increase the contact area and friction with the outer conductor 3, which is beneficial for clamping. The base 23 has a large outer diameter, which can serve as a limit and also enhance the stability of the connection between the dielectric body 2 and the outer conductor 3. The cylindrical body 21 of the dielectric body 2 is fitted onto the central pin 1 and fixed by the cooperation of the barbs 8 and the annular groove.

[0042] Referring to Figure 7, the dielectric 2 and the outer conductor 3 are interference-fitted. The outer conductor 3 includes a base 23 and a column 32 mounted on the base 23. A partition 33 is integrally formed on the side of the base 23 near the column 32. A through-hole 34 for the dielectric 2 to pass through is formed on the partition 33. A semi-circular groove 35 coaxial with the through-hole 34 is formed on the base 23. A waist-shaped groove 36 is also formed on the base 23, with the axis of the waist-shaped groove perpendicular to the axis of the through-hole 34. The outer conductor 3 is typically made of metal, such as stainless steel, which has good corrosion resistance and strength. When the dielectric 2 passes through the through-hole 34 on the partition 33 and mates with the outer conductor 3, the interference fit ensures a tight connection, enhancing stability. The semi-circular groove 35 and the waist-shaped groove 36 can be used to install other auxiliary components or adjust certain performance parameters of the outer conductor 3.

[0043] Referring to Figures 5 and 7, reinforcing ribs 10 are symmetrically arranged along the axis on the outer surface of the plastic shell 4. An extension block 11 is also integrally formed on the outer surface of the plastic shell 4. A groove 12 is formed on the inner wall of the plastic shell 4, and a protrusion 13 is integrally formed on the outer conductor 3. The protrusion 13 and the groove 12 engage in a snap-fit ​​connection. The plastic shell 4 is generally made of plastic, such as polycarbonate, which has high strength and good toughness. The reinforcing ribs 10 enhance the structural strength of the plastic shell 4 and prevent deformation during use. The extension block 11 can be designed according to actual needs, such as for connecting other components or for marking purposes. The snap-fit ​​connection between the protrusion 13 and the groove 12 ensures a firm connection between the plastic shell 4 and the outer conductor 3.

[0044] The implementation principle of a recessed FAKRA connector in this application embodiment is as follows: This recessed FAKRA connector greatly improves the tightness of the connection between various components through multiple locking positions, enhances tensile strength, reduces the risk of detachment, and improves product reliability. The unique structural design of the dielectric body 2, including the columnar body 21, ribs 22, base 23, and stepped surface 24, combined with the structure of the outer conductor 3, ensures good impedance matching, improves electrical performance, and allows for higher applicable frequencies. The stepped columnar body 32 structure of the center pin 1 and its connection method with the dielectric body 2 facilitates assembly and adjustment performance. The size of the center pin 1 can be changed to meet the customer's requirements for product specifications. The reinforcing ribs 10, extension blocks 11, and grooves 12 on the plastic shell 4 further enhance the overall stability and practicality of the connector.

[0045] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with this application, its shape and principle should be covered within the scope of protection of this application.

Claims

1. A recessed FAKRA connector, characterized in that: It includes a center pin (1), a dielectric body (2) mounted on the center pin (1), an outer conductor (3) mounted on the dielectric body (2), and a plastic shell (4) mounted on the outer conductor (3). The inner wall of the outer conductor (3) and the outer wall of the dielectric body (2) form a first locking position (5), the inner wall of the dielectric body (2) and the center pin (1) form a second locking position (6), and the outer wall of the dielectric body (2) and the inner wall of the outer conductor (3) form a third locking position (7).

2. A recessed FAKRA connector according to claim 1, characterized in that: The central needle (1) is integrally formed with barbs (8), which are engaged in an annular groove on the inner wall of the medium (2).

3. A recessed FAKRA connector according to claim 1, characterized in that: The dielectric (2) and the outer conductor (3) are interference-fitted.

4. A recessed FAKRA connector according to claim 1, characterized in that: The medium (2) consists of a cylindrical body (21), ribs (22) integrally formed on the surface of the cylindrical body (21), and a base (23) mounted on the cylindrical body (21). The outer diameter of the base (23) is larger than the outer diameter of the cylindrical body (21), and the surface of the ribs (22) is formed with a stepped surface (24).

5. A recessed FAKRA connector according to claim 1, characterized in that: The outer surface of the plastic shell (4) is symmetrically provided with reinforcing ribs (10) along its axis. An extension block (11) is also integrally formed on the outer surface of the plastic shell (4). A groove (12) is provided on the inner wall of the plastic shell (4). A protrusion (13) is integrally formed on the outer conductor (3). The protrusion (13) and the groove (12) are engaged.

6. A recessed FAKRA connector according to claim 1, characterized in that: The outer conductor (3) includes a substrate (31) and a column (32) mounted on the substrate (31). The substrate (31) has an integrally formed partition (33) on the side near the column (32). The partition (33) has a through hole (34) through which the dielectric (2) passes. The substrate (31) has a semi-circular groove (35) coaxial with the through hole (34). The substrate (31) also has a waist-shaped groove (36). The axis of the waist-shaped groove (36) is perpendicular to the axis of the through hole (34).

7. A recessed FAKRA connector according to claim 1, characterized in that: The central needle (1) has a stepped column (32) structure, and the length of the central needle (1) is greater than the length of the medium (2).

8. A recessed FAKRA connector according to claim 1, characterized in that: The medium (2) is made of plastic, and the center needle (1) is made of metal.

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