A connector having coaxial and differential or power functions

Abstract

The utility model discloses a kind of connectors with coaxial and differential or power function, it includes wire end connector and board end connector, the wire end connector includes wire end coaxial connector main body and the first function module being set in wire end coaxial connector main body, the first function module has the first function terminal for transmitting differential signal or power on and the cable of the first function terminal lead connection;The board end connector includes the board end coaxial connector main body and the second function module for being welded and fixed on PCB, and the second function module has the second function terminal for transmitting differential signal or power on;After the wire end connector and board end connector are inserted, the wire end coaxial connector main body and board end coaxial connector main body are on to transmit coaxial signal, the second function terminal of the first function module first function module and the second function module second function module is on to realize transmission differential signal or power on.

Description

Technical fields:

[0001] This utility model relates to the technical field of connector products, and specifically to a connector with coaxial and differential or power supply functions. Background technology:

[0002] SMB connectors are coaxial connectors used for camera connections. They are widely used in new energy vehicles for intelligent driver assistance, pedestrian detection, and ADAS functions such as APA automatic parking and blind spot monitoring.

[0003] Existing SMB connectors generally include a housing, an insulator, and an inner conductor. The inner conductor passes through the insulator and extends into the mating interface of the housing. The housing, insulator, and inner conductor are coaxially arranged. However, this type of SMB connector does not have a power conduction function, making it inflexible and inconvenient to use.

[0004] For example, Chinese utility model patent application number 202321334905.3 discloses a high-holding-force SMB connector, which includes a second outer conductor, an insulator, and an inner conductor. A positioning groove is provided in the inner wall of one end of the second outer conductor. The insulator is sleeved within the second outer conductor, and a strip-shaped rib is provided on the outer wall of the insulator. The strip-shaped rib is interference-fitted with the positioning groove to limit the relative displacement between the second outer conductor and the insulator. The inner conductor passes through the insulator. This high-holding-force SMB connector has the following problems: it is for standalone use and can only achieve coaxial signal transmission; it cannot simultaneously provide power conduction or differential signal transmission functions, making it inflexible and inconvenient to use.

[0005] In view of the above, the inventors propose the following technical solution. Utility model content:

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a connector with coaxial and differential or power supply functions.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a connector with coaxial and differential or power functions, comprising a wire-end connector and a board-end connector. The wire-end connector includes a wire-end coaxial connector body and a first functional module disposed in the wire-end coaxial connector body. The first functional module has a first functional terminal for transmitting differential signals or power conduction and a cable connected to the first functional terminal. The board-end connector includes a board-end coaxial connector body for soldering and fixing to a PCB board and a second functional module. The second functional module has a second functional terminal for transmitting differential signals or power conduction. After the wire-end connector and the board-end connector are mated, the wire-end coaxial connector body and the board-end coaxial connector body are connected to transmit coaxial signals, and the first functional module and the second functional module are connected to realize the transmission of differential signals or power conduction.

[0008] Furthermore, in the above technical solution, the main body of the coaxial connector includes: a first outer conductor with a mating sleeve formed at its front end; a first inner insulator disposed in the first outer conductor and exposed in the mating sleeve; an inner conductor disposed in the first inner insulator, the front end of which protrudes from the front end face of the first inner insulator and is exposed in the mating sleeve; a coaxial line with its metal core fixedly connected to the inner conductor; a first functional module disposed in the first outer conductor, the front end of which is exposed at the front end face of the first outer conductor; and an outer mold body integrally injection molded at the rear end of the first outer conductor, the outer mold body also integrally enclosing the coaxial line and cable.

[0009] Furthermore, in the above technical solution, the first functional module also includes a plastic shell disposed in the first outer conductor. The front end of the plastic shell protrudes beyond the front end of the first outer conductor and is located next to the plug tube. The front end of the plastic shell is provided with a docking hole, and the first functional terminal is inserted and fixed in the docking hole. The cable extends out of the rear end face of the plastic shell. The outer mold body also covers the rear end of the plastic shell.

[0010] Furthermore, in the above technical solution, the first outer conductor is provided with a mounting hole on the side of the plug tube, and the flange is provided with a clearance surface on the side near the mounting hole. The first functional module is inserted and fixed in the mounting hole, and the outer rear end of the first functional module is in contact with the clearance surface.

[0011] Furthermore, in the above technical solution, the first functional terminal includes a first main body bent into a semi-square shape, a bent plate bent against the upper opening of the first main body, a first elastic guide arm extending forward along the bent plate and bent to form a second elastic guide arm punched and bent upward along the lower end of the first main body and distributed opposite to the first elastic guide arm, a first clamping piece integrally formed at the rear end of the first main body, and a second clamping piece formed at the rear end of the first clamping piece. The front part of the upper opening of the first main body is also bent to form a front folding plate, which forms a rectangular insertion hole with the front end of the first main body. An outwardly protruding positioning spring is also formed on the outer side of the first main body.

[0012] Furthermore, in the above technical solution, the board-end coaxial connector body and the second functional module are an integral structure. The second functional module includes an insulating base and the second functional terminal placed in the insulating base, and the pin portion of the second functional terminal is exposed on the lower end face of the insulating base. The board-end coaxial connector body is fixedly mounted on the insulating base and located next to the second functional terminal, and the solder feet of the center conductor in the board-end coaxial connector body are exposed on the lower end face of the insulating base. Alternatively, the board-end coaxial connector body and the second functional module are separate structures. The second functional module includes an insulating base and the second functional terminal placed in the insulating base, and the pin portion of the second functional terminal is exposed on the lower end face of the insulating base. The board-end coaxial connector body is located next to the second functional module.

[0013] Furthermore, in the above technical solution, the insulating base is provided with a mounting hole that passes through the upper and lower end faces, and the main body of the board-end coaxial connector is fixed in the mounting hole, with the upper part of the main body of the board-end coaxial connector exposed outside the upper end of the insulating base. The inner side of the mounting hole is provided with a first clearance notch for observing the welding status of the solder feet of the center conductor, and the solder feet are exposed in the first clearance notch. The insulating base has a second clearance notch along its side that is horizontally connected to the mounting hole and is used to observe the welding status of the solder feet of the center conductor, and the solder feet are exposed in the second clearance notch.

[0014] Furthermore, in the above technical solution, the lower part of the main body of the board-end coaxial connector is formed with an outwardly protruding annular positioning part, and the upper end of the annular positioning part is provided with a guide slope, and the lower end of the annular positioning part is formed with a horizontally protruding flange; the annular positioning part is guided into the mounting hole through the guide slope at its upper end, and the annular positioning part and the mounting hole form an interference fit and are fastened, and the flange abuts against the outer periphery of the lower opening of the mounting hole.

[0015] Furthermore, in the above technical solution, the second functional terminal is fixedly assembled with the insulating base by insertion; or, the insulating base is integrally fixed to the second functional terminal by injection molding; there are two second functional terminals, which are arranged side by side on the insulating base, and the second functional terminal is a metal four-pointed star formed by stamping, and the outer surface of the metal four-pointed star is formed with an electroplated layer by roller plating; the lower end of the insulating base is provided with multiple raised parts for contacting the PCB board.

[0016] Furthermore, in the above technical solution, the board-end coaxial connector body includes a second outer conductor, a second inner insulator fixed inside the second outer conductor, and a center conductor disposed in the second inner insulator. The upper end of the second outer conductor has a mating groove, and the conductive part at the upper end of the center conductor is exposed in the mating groove. The solder feet of the center conductor protrude beyond the lower end of the second outer conductor and the lower end face of the second inner insulator.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention adds a first functional module to the wire-end connector and a corresponding second functional module to the board-end connector, so that after the wire-end connector and the board-end connector are mated, the body of the wire-end coaxial connector and the body of the board-end coaxial connector are connected to transmit coaxial signals. The first functional module and the second functional module are connected to realize the function of transmitting differential signals or the function of power conduction. This solves the problem that the existing SMB connector can only realize the function of coaxial signal transmission and does not have the function of power conduction or differential signal transmission. This makes the present invention flexible and convenient to use and enhances its market competitiveness. Attached image description:

[0018] Figure 1 This is an assembly drawing of Embodiment 1 of this utility model;

[0019] Figure 2 This is a perspective view of the wire-end connector in Embodiment 1 of this utility model;

[0020] Figure 3 This is a perspective view of the wire-end connector in Embodiment 1 of this utility model from another angle;

[0021] Figure 4 This is an exploded view of the wire-end connector in Embodiment 1 of this utility model;

[0022] Figure 5 This is a cross-sectional view of the wire-end connector in Embodiment 1 of this utility model;

[0023] Figure 6 This is a perspective view of the first outer conductor in Embodiment 1 of this utility model;

[0024] Figure 7 This is a perspective view of the first functional terminal in Embodiment 1 of this utility model;

[0025] Figure 8 This is a perspective view of the first functional terminal in Embodiment 1 of this utility model from another angle.

[0026] Figure 9 This is a perspective view of the board-end connector in Embodiment 1 of this utility model;

[0027] Figure 10 This is a perspective view of the board-end connector in Embodiment 1 of this utility model from another angle;

[0028] Figure 11 This is an exploded perspective view of the board-end connector in Embodiment 1 of this utility model;

[0029] Figure 12 This is a cross-sectional view of the insulating base in Embodiment 1 of this utility model;

[0030] Figure 13 This is a perspective view of the insulating base in Embodiment 1 of this utility model;

[0031] Figure 14 This is a perspective view of the main body of the board-end coaxial connector in Embodiment 1 of this utility model;

[0032] Figure 15 This is a perspective view of the main body of the board-end coaxial connector in Embodiment 1 of this utility model from another angle;

[0033] Figure 16 This is a perspective view of another structure of the board-end coaxial connector body in Embodiment 1 of this utility model;

[0034] Figure 17 This is an assembly drawing of Embodiment 2 of this utility model.

[0035] Figure 18 This is a perspective view of the board-end connector in Embodiment 2 of this utility model. Detailed implementation method:

[0036] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0037] Example 1:

[0038] See Figure 1-16 As shown, a connector with coaxial and differential or power functions is provided, which includes a wire-end connector 100 and a board-end connector 900.

[0039] The wire-end connector 100 includes a wire-end coaxial connector body 10 and a first functional module 5 disposed in the wire-end coaxial connector body 10. The first functional module 5 has a first functional terminal 52 for transmitting differential signals or power conduction and a cable 53 connected to the first functional terminal 52. Correspondingly, the board-end connector 900 includes a board-end coaxial connector body 9 for soldering and fixing to a PCB board 800 and a second functional module 700. The second functional module 700 has a second functional terminal 8 for transmitting differential signals or power conduction. After the wire-end connector 100 and the board-end connector 900 are plugged in, the wire-end coaxial connector body 10 and the board-end coaxial connector body 9 are connected to transmit coaxial signals, and the first functional module 5 and the second functional module 700 are connected to the second functional terminal 8 to realize the transmission of differential signals or power conduction. In other words, this utility model adds a first functional module 5 to the wire-end connector 100 and a corresponding second functional module 700 to the board-end connector 900. This allows the wire-end coaxial connector body 10 and the board-end coaxial connector body 9 to conduct coaxial signals after the wire-end connector 100 and board-end connector 900 are plugged in. The first functional module 5 and the second functional module 700's second functional terminal 8 are connected to achieve differential signal transmission or power-on functionality. This solves the problem that existing SMB connectors can only achieve coaxial signal transmission and lack power-on or differential signal transmission capabilities, making this utility model flexible and convenient to use and enhancing its market competitiveness.

[0040] This invention boasts powerful functionality and high integration, featuring coaxial signal transmission, power-on capability, and differential signal transmission, thus simultaneously addressing all needs related to video, power supply, control, and data communication. Integrating coaxial signal transmission (for high-definition video and power supply) and differential CAN signal transmission (for reliable control and data communication), this invention is particularly suitable for use with new types of cameras. It represents a highly integrated, intelligent, and reliable solution for complex system applications, meeting the comprehensive requirements of modern intelligent systems for data bandwidth, communication reliability, and system simplicity.

[0041] The structure of the wire connector 100 is described in detail below.

[0042] Combination Figure 2-8 As shown, the main body 10 of the coaxial connector includes: a first outer conductor 1, a first inner insulator 2, an inner conductor 3, and a coaxial line 4.

[0043] The first outer conductor 1 has a plug-in sleeve 11 formed at its front end; the first inner insulator 2 is disposed in the first outer conductor 1 and exposed in the plug-in sleeve 11; the inner conductor 3 is disposed in the first inner insulator 2, and the front end of the inner conductor 3 protrudes from the front end face of the first inner insulator 2 and is exposed in the plug-in sleeve 11; the metal core 41 of the coaxial line 4 is fixedly connected to the inner conductor 3; the first functional module 5 is disposed in the first outer conductor 1, and the front end of the first functional module 5 is exposed on the front end face of the first outer conductor 1, and the first functional module 5 has a first functional terminal 52 and a cable 53 connected to the first functional terminal 52.

[0044] The first outer conductor 1, the first inner insulator 2, the inner conductor 3, and the coaxial cable 4 form the main body 10 of the coaxial connector. Furthermore, this invention adds a first functional module 5 to the first outer conductor 1, enabling the coaxial connector to have built-in power conduction or differential signal transmission functions. In other words, by adding the first functional module 5 to the first outer conductor 1, this invention enables the coaxial connector main body 10, composed of the first outer conductor 1, the first inner insulator 2, the inner conductor 3, and the coaxial cable 4, to transmit signals (i.e., coaxial signals) from the camera, and then uses the first functional module 5 to transmit power or differential signals (i.e., CAN signals). This achieves both power conduction and differential signal transmission functions, solving the problem that existing SMB connectors can only perform signal transmission functions and lack power conduction or differential signal transmission functions. This makes the invention flexible and convenient to use, enhancing its market competitiveness.

[0045] The first outer conductor 1 is formed by die casting of metal material, which has low cost and high production capacity.

[0046] The rear end of the first outer conductor 1 is integrally injection molded with an outer mold body 6, which also integrally wraps the coaxial line 4 and the cable 53, thereby improving the stability of the structure of this utility model and enabling a stable connection with the coaxial line 4 and the cable 53.

[0047] The first functional module 5 is installed on the first outer conductor 1 by assembly and fixation.

[0048] The first functional module 5 also includes a plastic shell 51 disposed in the first outer conductor 1. The front end of the plastic shell 51 protrudes beyond the front end of the first outer conductor 1 and is located beside the plug sleeve 11. The front end of the plastic shell 51 is provided with a mating hole 511. The first functional terminal 52 is inserted and fixed in the mating hole 511. In actual use, the power pin on the mating connector is inserted into the mating hole 511 of the plastic shell 51 and connected to the first functional terminal 52 to form electrical continuity and realize power conduction. The cable 53 extends out of the rear end face of the plastic shell 51. The outer mold body 6 also wraps around the rear end of the plastic shell 51, thereby further fixing the first functional module 5 and the first outer conductor 1 together.

[0049] To ensure a more stable installation of the first inner insulator 2 relative to the first outer conductor 1, and a more stable assembly of the first outer conductor 1 with the coaxial cable 4, the following design is implemented: A connecting cylinder 12 corresponding to the insert sleeve 11 is formed at the rear end of the first outer conductor 1, which improves the stability of the assembly structure; the rear end of the first inner insulator 2 is also confined within the connecting cylinder 12, and the front end of the coaxial cable 4 is also inserted into the connecting cylinder 12, further enhancing the stability of the assembly structure. Specifically, the braided mesh layer 42 exposed after peeling off the outer sheath at the front end of the coaxial cable 4 is fitted onto the outside of the connecting cylinder 12, and a copper ring 40 is wrapped around the outside of the connecting cylinder 12, clamping the braided mesh layer 42 to the outside of the connecting cylinder 12, ensuring the coaxial cable 4 is stably installed at the rear end of the first outer conductor 1, and achieving stable grounding and noise shielding; the outer mold body 6 also wraps around the copper ring 40, further improving the stability of the assembly structure.

[0050] The connecting cylinder 12 has several spaced and outwardly protruding flanges 121 formed on its outer periphery near the rear end face of the first outer conductor 1, and an annular groove 122 is formed between two adjacent flanges 121. The outer mold body 6 wraps around the connecting cylinder 12 and is partially integrated into the annular groove 122 to form a tensile-resistant structure. Its assembly structure is more stable, so that the entire outer mold body 6 will not accidentally detach from the first outer conductor 1, thereby improving product quality.

[0051] The first outer conductor 1 has a mounting hole 13 on the side of the insert 11, and the flange 121 has a clearance surface 123 on the side near the mounting hole 13. The first functional module 5 is fixed in the mounting hole 13, and the outer rear end of the first functional module 5 contacts the clearance surface 123. Specifically, the plastic shell 51 is fixed in the mounting hole 13, and the outer rear end of the plastic shell 51 contacts the clearance surface 123. This can form a limit, improve the stability of the assembly structure, and also ensure that the insert 11 and the plastic shell 51 are as close as possible to facilitate mating and conduction with the mating connector. At the same time, it can also make the size of this utility model as compact as possible.

[0052] The front end face of the first outer conductor 1 is provided with an annular groove 14. The inner wall of the annular groove 14 has multiple protrusions 141. The sealing ring 15 is engaged in the annular groove 14. The annular groove 14 forms multiple points of contact with the outer surface of the sealing ring 15 through the multiple protrusions 141 for positioning. Its contact area is large and the positioning effect is better. It can effectively prevent the sealing ring 15 from accidentally falling out of the annular groove 14. At the same time, after the sealing ring 15 is squeezed and deformed during use, the annular groove 14 has enough space to accommodate the sealing ring 15, thereby making the contact area of ​​the sealing ring 15 after deformation larger and achieving a more ideal waterproof effect.

[0053] The first inner insulator 2 has an outwardly protruding first boss 201 and a second boss 202 that are continuously increasing in size; the first outer conductor 1 has a continuous first inner hole 101 and a second inner hole 102 that are continuously increasing in size; the first boss 201 is embedded and fixed in the first inner hole 101, and the second boss 202 is squeezed into the second inner hole 102 and forms an interference fit for fastening, wherein the first inner hole 101 extends to the insert sleeve 11 and the second inner hole 102 extends to the connecting sleeve 12.

[0054] The first inner insulator 2 is fitted with a plurality of O-rings 21. The O-rings 21 contact the inner wall of the first outer conductor 1 or the inner wall of the plug 11 to form a sealed assembly, which can achieve a better waterproof effect.

[0055] The first functional terminal 52 includes a first main body 521 bent into a semi-square shape, a bent plate 522 bent and abutting against the upper opening of the first main body 521, a first elastic guide arm 523 extending forward and bent along the bent plate 522, a second elastic guide arm 524 formed by pressing and bending upward along the lower end of the first main body 521 and distributed opposite to the first elastic guide arm 523, a first clamping piece 525 integrally formed at the rear end of the first main body 521, and a second clamping piece 526 formed at the rear end of the first clamping piece 525. The front part of the upper opening of the first main body 521 is also bent to form a front folding plate 527. The front folding plate 527 and the front end of the first main body 521 form a rectangular insertion hole 520. The outer side of the first main body 521 is also formed with an outwardly protruding positioning spring piece 528. When the first functional terminal 52 is inserted into the plastic shell 51, the rectangular socket 520 of the first functional terminal 52 aligns with the mating hole 511 at the front end of the plastic shell 51, and the positioning spring 528 is pressed outward by the inner wall of the plastic shell 51, thereby enabling the end of the positioning spring 528 to form a stable interference with the inner wall of the plastic shell 51, thus ensuring that the first functional terminal 52 is more stably positioned in the plastic shell 51. The first clamping piece 525 is used to clamp and fix the metal core wire 531 of the cable 53, and the second clamping piece 526 is used to clamp and fix the outer sheath 532 of the cable 53, thereby enabling the first functional terminal 52 and the cable 53 to form a stable assembly and a stable electrical conduction function. The ends of the first elastic conductive arm 523 and the second elastic conductive arm 524 both extend into the rear side of the rectangular socket 520, so that they can form a clamping contact with the power pins on the mating connector inserted into the rectangular socket 520, forming a stable conduction effect.

[0056] The structure of the board-end connector 900 is described in detail below.

[0057] Combination Figure 9-16 As shown, the board-end connector 900 is widely used in new energy vehicles for intelligent assisted driving, pedestrian detection, and to meet ADAS functions such as APA automatic parking and blind spot monitoring. The board-end connector 900 includes a board-end coaxial connector body 9 for soldering and fixing to a PCB board 800 and a second functional module 700.

[0058] In this embodiment, the board-end coaxial connector body 9 and the second functional module 700 are integrated into one unit. The second functional module 700 includes an insulating base 7 and the second functional terminal 8 disposed within the insulating base 7, with the pin portion 82 of the second functional terminal 8 exposed on the lower end face of the insulating base 7. The board-end coaxial connector body 9 is fixedly mounted on the insulating base 7 and located beside the second functional terminal 8, with the solder foot 931 of the center conductor 93 within the board-end coaxial connector body 9 exposed on the lower end face of the insulating base 7. In other words, this utility model integrates and fixes the second functional terminal 8 and the board-end coaxial connector body 9 onto the insulating base. On the 7th, the solder feet 931 of the center conductor 93 and the pins 82 of the second functional terminal 8 within the board-end coaxial connector body 9 are both exposed on the lower end face of the insulating base 7. The board-end coaxial connector body 9 is used to realize the transmission of camera signals (i.e., coaxial signals), while the second functional terminal 8 realizes power transmission or differential signal transmission (i.e., CAN signals), thus realizing both power conduction and differential signal transmission functions. This solves the problem that existing SMB board-end connectors can only realize coaxial signal transmission functions and do not have power conduction or differential signal transmission functions, making this utility model flexible and convenient to use, enhancing its market competitiveness. In addition, before the board-end coaxial connector body 9 is fixedly installed on the insulating base 7, this utility model is an independent component that can be used independently. It can be used alone to realize signal transmission for the camera, making it more flexible to use.

[0059] The contact portion 81 of the second functional terminal 8 is exposed outside the upper end face of the insulating base 7 and located on the side of the upper part of the board end coaxial connector body 9, so as to be inserted into the second functional module 8 to be electrically connected with the first functional terminal 52.

[0060] In this embodiment, the insulating base 7 and the board-end coaxial connector body 9 are fixed together by assembly. Specifically, the insulating base 7 is provided with a mounting hole 71 that passes through the upper and lower end faces, and the board-end coaxial connector body 9 is fixed in the mounting hole 71, with the upper part of the board-end coaxial connector body 9 exposed outside the upper end of the insulating base 7. Of course, in some other embodiments, the insulating base 7 can also be integrally fixed to the board-end coaxial connector body 9 by in-mold injection molding.

[0061] In this embodiment, the lower part of the board-end coaxial connector body 9 is formed with an outwardly protruding annular positioning part 911, and the upper end of the annular positioning part 911 is provided with a guide slope 912, and the lower end of the annular positioning part 911 is formed with a horizontally protruding retaining flange 913. The annular positioning part 911 is guided into the mounting hole 71 by the guide slope 912 at its upper end. The guide slope 912 has a guiding function, so that the annular positioning part 911 is concentric with the mounting hole 71, so that insertion can be quickly achieved. The annular positioning part 911 and the mounting hole 71 form an interference fit and are fastened together. The retaining flange 913 abuts against the outer periphery of the lower opening of the mounting hole 71, thereby stably installing the board-end coaxial connector body 9 and the insulating seat 7.

[0062] In this embodiment, a first clearance notch 711 is provided inside the mounting hole 71 for observing the welding status of the solder feet 931 of the center conductor 93. The solder feet 931 are exposed in the first clearance notch 711, so that the welding status of the solder feet 931 of the center conductor 93 can be directly and quickly observed through the first clearance notch 711 after the soldering of the solder feet 931 of the center conductor 93, achieving the purpose of checking the soldering effect. If there is a problem with the soldering, it can be directly reworked and re-soldered. In addition, the insulating base 7 has a second clearance notch 712 along its side, which is horizontally connected to the mounting hole 71 and is used to observe the welding status of the solder feet 931 of the center conductor 93. The solder feet 931 are exposed in the second clearance notch 712, so that the welding status of the solder feet 931 of the center conductor 93 can be directly and quickly observed through the second clearance notch 712 after the soldering of the solder feet 931 of the center conductor 93, achieving the purpose of checking the soldering effect. If there is a problem with the soldering, it can be directly reworked and re-soldered. In other words, this utility model allows for direct and rapid observation of the welding status of the solder feet 931 of the central conductor 93 from two different perspectives: vertical and horizontal, ensuring that the welding quality is up to standard.

[0063] The second functional terminal 8 is fixedly assembled with the insulating base 7 by insertion; or the insulating base 7 is integrally fixed to the second functional terminal 8 by injection molding.

[0064] Among them, such as Figure 9-11As shown, the pin portion 82 of the second functional terminal 8 is a through-hole solder joint. There are two second functional terminals 8, which are arranged side by side on the insulating base 7. The second functional terminal 8 is a metal four-pronged pin formed by stamping, which can be electroplated by continuous barrel plating without plating deformation defects. The outer surface of the metal four-pronged pin has an electroplated layer formed by barrel plating, which can increase the conductivity. The lower end of the insulating base 7 is provided with multiple raised portions 72 for contact with the PCB board. The raised portions 72 contact with the PCB board to form a gap between the lower end surface of the insulating base 7 and the surface of the PCB board. This facilitates air flow between the pin portion 82 of the second functional terminal 8 and the solder joint 931 of the center conductor 93 during reflow soldering, thereby improving the soldering quality.

[0065] Or, such as Figure 16 As shown, the pin portion 82 of the second functional terminal 8 is an SMT type solder pad.

[0066] The board-end coaxial connector body 9 includes a second outer conductor 91, a second inner insulator 92 fixed inside the second outer conductor 91, and a center conductor 93 disposed in the second inner insulator 92. The upper end of the second outer conductor 91 has a mating groove 910, and the conductive part 932 at the upper end of the center conductor 93 is exposed in the mating groove 910. The solder foot 931 of the center conductor 93 protrudes beyond the lower end of the second outer conductor 91 and the lower end face of the second inner insulator 92.

[0067] The second outer conductor 91 has a first limiting groove 914 and a second limiting groove 915 formed on its lower end surface, and the first limiting groove 914 and the second limiting groove 915 both penetrate the lower end outer surface of the second outer conductor 91; the lower end of the second inner insulator 92 has a first limiting block 921 and a second limiting block 922 formed on both sides, which are respectively embedded in the first limiting groove 914 and the second limiting groove 915 to achieve fastening, thereby ensuring that the second inner insulator 92 and the second outer conductor 91 form a stable assembly.

[0068] The solder feet 931 of the center conductor 93 are also embedded in the groove 923 at the lower end of the first limiting block 921. The groove 923 further limits the solder feet 931 of the center conductor 93, thereby achieving the purpose of guiding the solder feet 931 of the center conductor 93. The solder feet 931 also protrude horizontally beyond the outer side of the first limiting block 921 so as to be exposed in the first clearance notch 711. The lower end face of the center conductor 93 is also provided with a solder trough 933, which holds the solder and improves the quality of subsequent soldering.

[0069] The lower end face of the second inner insulator 92 is formed with large positioning posts 924 and small positioning posts 925 of different sizes and spaced apart. By embedding and assembling the large positioning posts 924 and small positioning posts 925 with the large positioning holes and small positioning holes on the PCB board, not only is the positioning and fastening function achieved, but it can also play a foolproof role and prevent the second inner insulator from shaking after being assembled with the PCB board, thus improving the assembly stability.

[0070] The second outer conductor 91 has a plurality of spaced-apart dividing grooves 916 along its upper end face downward, and an elastic guide arm 917 is formed between two adjacent dividing grooves 916. The upper outer side of the elastic guide arm 917 is formed with an arc-shaped guide surface 918, and the upper inner side of the elastic guide arm 917 is formed with an inclined guide surface 919.

[0071] In summary, this utility model adds a first functional module 5 to the wire-end connector 100 and a corresponding second functional module 700 to the board-end connector 900. After the wire-end connector 100 and the board-end connector 900 are mated, the wire-end coaxial connector body 10 and the board-end coaxial connector body 9 are connected to transmit coaxial signals. The first functional module 5 and the second functional module 700's second functional terminal 8 are connected to achieve differential signal transmission or power-on function. This solves the problem that existing SMB connectors can only achieve coaxial signal transmission and lack power-on or differential signal transmission functions, making this utility model flexible and convenient to use and enhancing its market competitiveness.

[0072] Example 2:

[0073] The difference between this second embodiment and the first embodiment described above is that: [the following is a combination of...] Figure 17-18 As shown, the board-end coaxial connector body 9 and the second functional module 700 are separate structures. The second functional module 700 includes an insulating base 7 and the second functional terminal 8 placed in the insulating base 7. The pin portion 82 of the second functional terminal 8 is exposed on the lower end face of the insulating base 7. The board-end coaxial connector body 9 is located next to the second functional module 700. The two are independent of each other and are soldered and fixed on the PCB board 800.

[0074] Apart from the differences described above, the other structures of this second embodiment are the same as those of the first embodiment, and the same technical effects can be achieved.

[0075] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A connector having coaxial and differential or power functions, comprising a wire-end connector (100) and a board-end connector (900), characterized in that: The wire connector (100) includes a wire coaxial connector body (10) and a first functional module (5) disposed in the wire coaxial connector body (10). The first functional module (5) has a first functional terminal (52) for transmitting differential signals or power conduction and a cable (53) connected to the first functional terminal (52). The board-end connector (900) includes a board-end coaxial connector body (9) for soldering and fixing to a PCB board (800) and a second functional module (700), the second functional module (700) having a second functional terminal (8) for transmitting differential signals or power on. After the wire-end connector (100) and the board-end connector (900) are plugged in, the wire-end coaxial connector body (10) and the board-end coaxial connector body (9) are connected to transmit coaxial signals. The first functional module (5) and the second functional terminal (8) of the second functional module (700) are connected to realize the transmission of differential signals or power supply.

2. The connector with coaxial and differential or power functions according to claim 1, characterized in that: The coaxial connector body (10) includes: The first outer conductor (1) has a pair of plug tubes (11) formed at its front end; A first inner insulator (2) is disposed in the first outer conductor (1) and exposed in the plug tube (11); An inner conductor (3) is disposed in a first inner insulator (2), the front end of which protrudes from the front end face of the first inner insulator (2) and is exposed in the insert (11); The coaxial cable (4) has its metal core (41) fixedly connected to the inner conductor (3); The first functional module (5) is disposed in the first outer conductor (1), and the front end of the first functional module (5) is exposed on the front end surface of the first outer conductor (1); the rear end of the first outer conductor (1) is integrally injection molded with an outer mold body (6), which also integrally wraps the coaxial line (4) and the cable (53).

3. The connector with coaxial and differential or power functions according to claim 2, characterized in that: The first functional module (5) further includes a plastic shell (51) disposed in the first outer conductor (1). The front end of the plastic shell (51) protrudes outside the front end of the first outer conductor (1) and is located next to the plug tube (11). The front end of the plastic shell (51) is provided with a docking hole (511). The first functional terminal (52) is inserted and fixed in the docking hole (511). The cable (53) extends out of the rear end face of the plastic shell (51). The outer mold body (6) also covers the rear end of the plastic shell (51).

4. The connector with coaxial and differential or power functions according to claim 2, characterized in that: The first outer conductor (1) has a mounting hole (13) on the side of the plug tube (11), and the flange (121) has a clearance surface (123) on the side near the mounting hole (13). The first functional module (5) is inserted and fixed in the mounting hole (13), and the outer rear end of the first functional module (5) contacts the clearance surface (123).

5. The connector with coaxial and differential or power functions according to claim 1, characterized in that: The first functional terminal (52) includes a first main body (521) bent into a semi-square shape, a bent plate (522) bent against the upper opening of the first main body (521), a first elastic guide arm (523) extending forward and bent along the bent plate (522), a second elastic guide arm (524) formed by pressing and bending upward along the lower end of the first main body (521) and distributed opposite to the first elastic guide arm (523), a first clamping piece (525) integrally formed at the rear end of the first main body (521), and a second clamping piece (526) formed at the rear end of the first clamping piece (525). The front part of the upper opening of the first main body (521) is also bent to form a front folding plate (527). The front folding plate (527) and the front end of the first main body (521) form a rectangular insertion hole (520). The outer side of the first main body (521) is also formed with an outwardly protruding positioning spring (528).

6. The connector with coaxial and differential or power functions according to any one of claims 1-5, characterized in that: The board-end coaxial connector body (9) and the second functional module (700) are an integral structure. The second functional module (700) includes an insulating base (7) and the second functional terminal (8) placed in the insulating base (7). The pin portion (82) of the second functional terminal (8) is exposed on the lower end face of the insulating base (7). The board-end coaxial connector body (9) is fixedly installed on the insulating base (7) and located next to the second functional terminal (8). The solder foot (931) of the center conductor (93) in the board-end coaxial connector body (9) is exposed on the lower end face of the insulating base (7). Alternatively, the board-end coaxial connector body (9) and the second functional module (700) are separate structures. The second functional module (700) includes an insulating base (7) and the second functional terminal (8) placed in the insulating base (7). The pin portion (82) of the second functional terminal (8) is exposed on the lower end face of the insulating base (7). The board-end coaxial connector body (9) is located next to the second functional module (700).

7. The connector with coaxial and differential or power functions according to claim 6, characterized in that: The insulating base (7) is provided with a mounting hole (71) that passes through the upper and lower end faces, and the board end coaxial connector body (9) is fixed in the mounting hole (71), and the upper part of the board end coaxial connector body (9) is exposed outside the upper end of the insulating base (7), and the inner side of the mounting hole (71) is provided with a first clearance notch (711) for observing the welding state of the solder foot (931) of the center conductor (93), and the solder foot (931) is exposed in the first clearance notch (711); the insulating base (7) is provided with a second clearance notch (712) along its side, which is a horizontally connected mounting hole (71) for observing the welding state of the solder foot (931) of the center conductor (93), and the solder foot (931) is exposed in the second clearance notch (712).

8. The connector with coaxial and differential or power functions according to claim 7, characterized in that: The lower part of the coaxial connector body (9) has an outwardly protruding annular positioning part (911), and the upper end of the annular positioning part (911) is provided with a guide slope (912), and the lower end of the annular positioning part (911) has a horizontally protruding flange (913); the annular positioning part (911) is guided into the mounting hole (71) through the guide slope (912) at its upper end, and the annular positioning part (911) and the mounting hole (71) form an interference fit and are fastened, and the flange (913) abuts against the outer periphery of the lower opening of the mounting hole (71).

9. The connector with coaxial and differential or power functions according to claim 6, characterized in that: The second functional terminal (8) is fixedly assembled with the insulating base (7) by insertion; or, the insulating base (7) is integrally fixed to the second functional terminal (8) by injection molding; there are two second functional terminals (8), which are arranged side by side on the insulating base (7), and the second functional terminal (8) is a metal four-pointed star formed by stamping, and the outer surface of the metal four-pointed star is formed with an electroplating layer by roller plating; the lower end of the insulating base (7) is provided with a plurality of raised parts (72) for contacting the PCB board (800).

10. The connector with coaxial and differential or power functions according to claim 6, characterized in that: The board-end coaxial connector body (9) includes a second outer conductor (91), a second inner insulator (92) fixed inside the second outer conductor (91), and a center conductor (93) disposed in the second inner insulator (92). The upper end of the second outer conductor (91) has a mating groove (910), and the conductive part (932) at the upper end of the center conductor (93) is exposed in the mating groove (910). The solder foot (931) of the center conductor (93) protrudes beyond the lower end of the second outer conductor (91) and the lower end face of the second inner insulator (92).

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