A board-end high-speed MINI FAKRA connector

Abstract

The utility model discloses a kind of plate end high-speed MINI FAKRA connector, including the connector and PCB board of corresponding arrangement, the side of the connector is equipped with several groups of pin connected with PCB board, the middle part of the PCB board is equipped with several groups of through-hole of pin insertion, each group of pin is inserted in the inside of corresponding through-hole, the side of the connector is equipped with several groups of solder pad, each group of solder pad is welded with PCB board by tin paste. First, tin paste is applied on the surface of the relative position of PCB board and solder pad, then the pin of the side of connector is aligned and inserted into through-hole, finally, PCB board and solder pad are welded together by reflow soldering process, PCB board and solder pad are welded by tin paste reflow soldering, so that connector directly forms plane integration with PCB board, without additional wire harness connection, avoid the problem of space stagger interference caused by wire harness layout, and through the short path conduction characteristics of welding point, signal transmission delay and heat dissipation efficiency are optimized, effectively solve the problem of high-density functional integration in limited space.

Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, specifically a board-end high-speed MINI FAKRA connector. Background Technology

[0002] FAKRA board-end connectors are high-performance radio frequency (RF) board-end connectors used in automotive electronics, communications, and industrial automation, primarily for RF signal connections on PCBs. Their structure typically consists of core components such as a housing, insulators, terminals, and shielding, offering significant advantages including excellent high-frequency performance, strong anti-interference capabilities, and high reliability. This makes them ideal for applications with stringent signal quality requirements, such as automotive infotainment systems, intelligent driving sensors, and 5G base station RF modules. Furthermore, to meet the demands for miniaturization and higher frequencies, miniaturized variants such as the Mini-FAKRA have been developed, better adaptable to space-constrained devices requiring high-speed transmission.

[0003] Modern automotive electronic architecture, especially with the rapid development of intelligent driving and vehicle-to-everything (V2X) technologies, has seen an explosive growth in demand for in-vehicle radio frequency (RF) connectivity. Various critical systems, including multiple cameras, millimeter-wave radar, LiDAR, V2X communication units, high-precision positioning modules, and high-definition multimedia transmission interfaces, all rely on stable, high-speed, and low-loss RF signal connections. These systems are often densely distributed in various critical and confined areas of the vehicle, such as the roof, front and rear bumpers, rearview mirrors, and door panels, placing extremely high demands on signal integrity and electromagnetic interference resistance.

[0004] Existing board-side connectors require the integration of a large number of connectors within a limited space. Wire-side connectors and their wiring harnesses occupy too much valuable space, leading to layout difficulties or failure to achieve the expected functional density. Therefore, a high-speed board-side MINI FAKRA connector is needed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-speed MINIFAKRA connector for the board end, which solders the PCB board and the connector together by means of solder paste reflow soldering, thereby avoiding the wire harness occupying a lot of space and solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-speed MINI FAKRA connector for board end includes a connector and a PCB board respectively. A number of pins connected to the PCB board are installed on one side of the connector. A number of through holes for inserting pins are opened in the middle of the PCB board. Each set of pins is inserted into the corresponding through hole. A number of pads are installed on one side of the connector. Each set of pads is soldered to the PCB board with solder paste.

[0008] Preferably, the connector has a variable diameter hole in the middle, the variable diameter hole includes a front end and a rear end, and the diameter of the rear end is smaller than the diameter of the front end.

[0009] Preferably, an insulating block that insulates the center pin is installed inside the front end, the outer wall of the insulating block is in close contact with the inner wall of the front end, and the center pin is installed through the middle of the insulating block.

[0010] Preferably, the side wall of the insulating block is provided with a slot for fixing the center pin, and one end of the center pin is engaged inside the slot.

[0011] Preferably, the interior of the rear end is used to install a female terminal for peripheral devices, and the outer wall of the female terminal is in close contact with the inner wall of the rear end.

[0012] Preferably, a slot for mounting a center pin is provided on one side of the female end, and the center pin is inserted and mounted inside the slot.

[0013] Preferably, the outer wall of the slot has an opening for limiting the center pin, and the outer wall of the center pin is provided with a limiting block that is inserted into the opening.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] First, solder paste is applied to the surfaces of the PCB board opposite the pads. Then, the pins on the side of the connector are aligned with the through-holes, and the connector is pushed in to insert the pins. Finally, the PCB board and pads are soldered together using a reflow soldering process. Soldering the PCB board and connector using solder paste reflow soldering allows the connector to directly integrate with the PCB board in a planar manner, eliminating the need for additional wiring harnesses and avoiding spatial interference issues caused by wiring harness layouts. Simultaneously, the short-path conduction characteristics of the solder joints optimize signal transmission delay and heat dissipation efficiency, effectively solving the problem of high-density functional integration within a limited space. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a split view of the side structure of the connector of this utility model;

[0018] Figure 3This is a schematic diagram of the internal structure of the connector of this utility model;

[0019] Figure 4 This is a schematic diagram of the center pin mounting structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the female end of this utility model;

[0021] Figure 6 This is a schematic diagram of the connector center pin being inserted into the female end center pin.

[0022] In the diagram: 1. Connector; 2. PCB board; 3. Pin; 4. Through hole; 5. Solder paste; 6. Variable diameter hole; 61. Front end; 62. Rear end; 7. Insulating block; 8. Center pin; 10. Slot; 11. Female end; 12. Slot; 13. Opening. Detailed Implementation

[0023] 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.

[0024] This utility model provides: a board-end high-speed MINI FAKRA connector, such as... Figures 1-6 As shown, the connector includes a connector 1 and a PCB board 2. Several sets of pins 3 connected to the PCB board 2 are mounted on one side of the connector 1. Several sets of through holes 4 for inserting the pins 3 are opened in the middle of the PCB board 2. Each set of pins 3 is inserted into the corresponding through hole 4. Several sets of solder pads are mounted on one side of the connector 1, and each set of solder pads is soldered to the PCB board 2 using solder paste 5. The connector 1 achieves mechanical positioning by inserting the pins 3 from the side into the through holes 4 of the PCB board 2. Simultaneously, the solder paste 5 pre-coated on the surface of its side solder pads aligns with the corresponding solder pads on the PCB board 2. During soldering, the solder paste 5 is melted by reflow soldering, and after cooling, solder joints are formed, electrically connecting and mechanically fixing the connector 1 and the PCB board 2, ensuring reliable signal transmission.

[0025] Preferably, connector 1 has a reducing hole 6 in its middle, comprising a front end 61 and a rear end 62, with the diameter of the rear end 62 being smaller than that of the front end 61. The reducing hole 6 is divided into a front end 61 and a rear end 62; the front end 61 has a larger diameter and is used to install insulation and signal transmission components, while the rear end 62 has a smaller diameter and is used to install the female connector. The reducing structure uses a stepped surface to buffer stress, preventing connector 1 from cracking under external force. During assembly, the stepped surfaces of the front end 61 and the rear end 62 are used as positioning references, and the insulating block 7 and the center pin 8 are pressed in sequentially to complete the assembly.

[0026] Furthermore, an insulating block 7 is installed inside the front end 61 to insulate the center pin 8. The outer wall of the insulating block 7 is tightly attached to the inner wall of the front end 61, and the center pin 8 is installed through the middle of the insulating block 7. The insulating block 7 is made of high-frequency materials such as polytetrafluoroethylene, and its outer wall is interference-fitted with the front end 61 to achieve electrical isolation between the center pin 8 and the connector 1 housing, prevent external electromagnetic interference from entering, block the risk of short circuit between the center pin 8 and the connector 1 housing, and ensure data transmission rate.

[0027] Furthermore, the side wall of the insulating block 7 is provided with a slot 10 for fixing the center pin 8, and one end of the center pin 8 is engaged inside the slot 10. The center pin 8 has an overall L-shaped structure. After one end of the center pin 8 is engaged in the slot 10, it is locked to prevent displacement of the center pin 8, avoid poor contact due to vibration, and prevent it from falling off during insertion and removal. The depth of the slot 10 matches the thickness of the bent end of the center pin 8 to ensure reliable locking. At the same time, the side of the center pin 8 corresponding to the PCB board 2 is coated with solder paste 5 for soldering to the PCB board 2, thereby increasing the tightness of the connection between the PCB board 2 and the connector 1.

[0028] It is worth noting that the female terminal 11 for mounting peripherals is located inside the rear end 62, with its outer wall tightly fitted to the inner wall of the rear end 62. The female terminal 11 is made of copper alloy, and its outer wall fits snugly against the inner wall of the rear end 62, forming a shielded cavity to suppress electromagnetic radiation. The inner diameter of the female terminal 11 is coaxial with the front end 61, ensuring the continuity of the signal transmission path. After the female terminal 11 is inserted into the rear end 62, its outer wall and the metal layer of the variable diameter hole 6 form a conductive and signal transmission path. The slot 12 inside the female terminal 11 is located inside the center pin. The center pin inside the female terminal 11 matches the center pin 8 inserted in the middle of the connector 1, ensuring that the center pin 8 can accurately insert into the slot 12 during insertion and removal, avoiding contact failure caused by misalignment.

[0029] Specifically, a slot 12 for mounting the center pin 8 is provided on one side of the female end 11. The center pin 8 is inserted and installed inside the slot 12. The main function of the slot 12 is to provide precise installation space and positioning for the center pin 8. The size and shape of the slot 12 are precisely designed to fit tightly with the center pin 8, constraining and limiting the position of the center pin 8, so that the center pin 8 can be accurately installed in the preset position. The cooperation between the female end 11 and the slot 12 provides a stable and precise installation environment for the center pin 8, and the slot 12, through its tight cooperation with the center pin 8, firmly fixes the center pin 8 in a specific position, preventing it from shifting or shaking during use. This installation fit ensures that the entire connection structure remains stable when subjected to external forces, avoiding the impact of loose components on the connection performance, and ensuring that the connection structure can operate reliably under various working conditions.

[0030] Specifically, the outer wall of the slot 12 has an opening 13 for limiting the center pin 8, and the outer wall of the center pin 8 has a limiting block that is inserted into the opening 13. The opening 13 on the outer wall of the slot 12 is used to insert the limiting block on the outer wall of the center pin 8. When the female end 12 is connected to the center pin 8, the limiting block is embedded in the opening 13 to form a circumferential constraint, completely eliminating relative rotational displacement between the two. Through the cooperation of the limiting block and the opening 13, it is ensured that the center pin 8 and the female end 12 maintain a tight fit, thereby ensuring the long-term reliability of data transmission.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A board-end high-speed MINI FAKRA connector, characterized in that: The connector (1) and PCB board (2) are provided with corresponding configuration. Several sets of pins (3) connected to the PCB board (2) are installed on one side of the connector (1). Several sets of through holes (4) for inserting pins (3) are opened in the middle of the PCB board (2). Each set of pins (3) is inserted into the corresponding through hole (4). Several sets of solder pads are installed on one side of the connector (1). Each set of solder pads is soldered to the PCB board (2) by solder paste (5).

2. The board-end high-speed MINI FAKRA connector according to claim 1, characterized in that: The connector (1) has a variable diameter hole (6) in the middle. The variable diameter hole (6) includes a front end (61) and a rear end (62). The diameter of the rear end (62) is smaller than the diameter of the front end (61).

3. A board-end high-speed MINI FAKRA connector according to claim 2, characterized in that: An insulating block (7) is installed inside the front end (61) to insulate the center pin (8). The outer wall of the insulating block (7) is in close contact with the inner wall of the front end (61), and the center pin (8) is installed through the middle of the insulating block (7).

4. A board-end high-speed MINI FAKRA connector according to claim 3, characterized in that: The insulating block (7) has a slot (10) for fixing the center pin (8) on its side wall, and one end of the center pin (8) is engaged inside the slot (10).

5. A board-end high-speed MINI FAKRA connector according to claim 4, characterized in that: The interior of the rear end (62) is used to install the female end (11) of the peripheral device, and the outer wall of the female end (11) is in close contact with the inner wall of the rear end (62).

6. A board-end high-speed MINI FAKRA connector according to claim 5, characterized in that: The female end (11) has a slot (12) for installing a center pin (8) on one side, and the center pin (8) is inserted into the slot (12).

7. A board-end high-speed MINI FAKRA connector according to claim 6, characterized in that: The outer wall of the slot (12) is provided with an opening (13) for limiting the center pin (8), and the outer wall of the center pin (8) is provided with a limiting block inserted into the opening (13).

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