CN217087071U

CN217087071U - Coaxial high-speed connector

Info

Publication number: CN217087071U
Application number: CN202220202149.8U
Authority: CN
Inventors: 宋璐; 岑燎炬; 隆权
Original assignee: FCI Connectors Dongguan Co Ltd
Current assignee: FCI Connectors Dongguan Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-07-29
Anticipated expiration: 2032-01-25

Abstract

The utility model provides a coaxial high-speed connector, including public end module and female end module, public end module includes public end connector casing, sets up a plurality of public end terminals in public end connector casing, and public end terminal outside cover is equipped with the insulating plastic casing of first insulation plastic casing and second, and the insulating plastic casing outside of first insulation plastic casing and second is equipped with first shield cover and second shield cover respectively. The female end module comprises a female end connector shell, a plurality of female end terminals arranged in the female end connector shell, a third insulating plastic shell is sleeved on the outer side of each female end terminal, and a third shielding cover is sleeved on the outer side of each third insulating plastic shell. The utility model discloses a public end terminal and female end terminal all are the cylinder structure, and the outside all overlaps and is equipped with the shield cover, and the shield cover also is the cylinder structure moreover to formed the unanimous transmission channel of cross section, guaranteed good characteristic impedance, simultaneously because shield cover ground connection has guaranteed the good EMI of signal transmission & anti-noise performance.

Description

Coaxial high-speed connector

Technical Field

The utility model belongs to the technical field of the connector technique and specifically relates to a coaxial high-speed connector.

Background

With the development of high-speed connectors toward miniaturization, high density, and high speed, low cost and high reliability are also important points.

The high-speed coaxial connector in the market at present has low integration degree, and coaxial cables cannot be distributed in the connector at high density, so that the high-speed performance cannot be realized; in addition, the shielding structure plays an important role in the field of high-speed connectors, the design of the shielding structure directly affects the high-speed performance of the connector, the shielding of the existing coaxial cable mainly depends on the shielding layer inside the cable to be connected with the metal shell by means of the conductor structure, the conductor structure is generally a wire or a spring plate and the like, the mode can only realize the independent grounding of a single coaxial cable, and when a plurality of coaxial cables are grounded in a shielding mode, the arrangement trend of the plurality of conductor structures is bound to occupy larger internal space of the connector, the shielding performance is not stable, and the shielding effect is general, so that the common ground shielding treatment is carried out on the coaxial cable connector which is deployed at high density in the prior art by using the imperfect shielding structure.

Disclosure of Invention

To the not enough of prior art, the utility model provides a coaxial high-speed connector.

The technical scheme of the utility model is that: a coaxial high-speed connector comprises a male end module and a female end module which are matched with each other.

As preferred, public end module include public end connector casing to and set up a plurality of public end terminal in public end connector casing, public end terminal outside cover be equipped with first insulation plastic casing and the insulating plastic casing of second, the insulating plastic casing outside of first insulation plastic casing and second be equipped with first shield cover and second shield cover respectively.

Preferably, the lower end of the first shielding case is further provided with two welding ends, the two welding ends and the welding end of the male terminal are welded with the PCB, and the two welding ends of each first shielding case are welded with the same grounding pad of the PCB.

Preferably, the welding end of the male terminal is in a chamfer structure, so that the tin coating and the welding stability are facilitated.

Preferably, the male end connector housing comprises a first male end connector housing and a second male end connector housing; and the first male end connector shell and the second male end connector shell are provided with a plurality of jacks for mounting the male end terminals.

Preferably, the male terminal is a male round bar terminal, and the male round bar terminal has an L-shaped structure.

Preferably, two symmetrical side walls of the male terminal are of a plane structure, and the other two side walls are of an arc-shaped surface structure.

Preferably, the male terminal is further provided with a plurality of arc-shaped clamping parts, and the arc-shaped clamping parts are located on the arc-shaped surface of the male terminal.

As preferred, female end module include female end connector casing to and set up a plurality of female end terminal in female end connector casing, female end terminal outside cover be equipped with the insulating plastic casing of third, the insulating plastic casing outside cover of third be equipped with the third shield cover.

Preferably, one end of the female terminal is a welding end, the other end of the female terminal is a contact end, at least one groove penetrating through the contact end is formed in the female terminal close to the contact end, and the contact end is divided into a plurality of contact points through the groove.

Preferably, two symmetrical side walls of the female terminal are of a plane structure, and the other two side walls are of an arc-shaped surface structure.

Preferably, the female terminal is further provided with a plurality of arc-shaped clamping parts, and the arc-shaped clamping parts are located on the arc-shaped surface of the female terminal.

Preferably, the lower end of the third shielding case is further provided with two welding ends, the two welding ends and the welding end of the female terminal are welded with the PCB, and the two welding ends of each third shielding case are welded with the same grounding pad of the PCB.

Preferably, the welding end of the female terminal is in a chamfer structure, so that the tin coating and the welding stability are facilitated.

The utility model has the advantages that:

1. the male terminal and the female terminal of the utility model are both of cylindrical structures, and the shielding cover is sleeved outside the male terminal and the female terminal, and the shielding cover is also of cylindrical structures, thereby forming transmission channels with consistent cross sections, ensuring good characteristic impedance, and simultaneously ensuring good EMI & anti-noise performance of signal transmission due to the grounding of the shielding cover;

2. the utility model assembles a plurality of coaxial terminals into the corresponding shell to meet the requirement of multiple channels;

3. the utility model discloses a set up the recess in the middle of female end terminal, divide into a plurality of contact points with the contact end through the recess;

4. the utility model discloses a with two weld ends welding of shield cover to the same ground connection pad of PCB board on, avoided leading to wherein one of them bad problem of leg welding because of soldering tin is inhomogeneous, can optimize the crosstalk and can prevent the inhomogeneous empty welding that leads to of soldering tin bad again.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the male module of the present invention;

fig. 3 is a schematic structural view of the first male end connector housing hidden in the male end module of the present invention;

fig. 4 is a schematic structural view of the male module of the present invention after hiding the male connector housing;

fig. 5 is a schematic structural view of the male terminal of the present invention;

fig. 6 is a schematic structural view of the insulating housing of the male terminal of the present invention;

fig. 7 is a schematic structural view of the shielding case of the male terminal of the present invention;

fig. 8 is a schematic structural diagram of the female module of the present invention;

fig. 9 is a schematic structural view of an insulating plastic housing of the female module of the present invention;

fig. 10 is a schematic structural view of the shielding case of the female module of the present invention;

fig. 11 is a schematic structural view of the female terminal of the present invention;

in the figure, 1-male end module, 2-female end module, 3-PCB, 4-welding end, 5-circular arc clamping part and 6-contact end;

11-a male end connector shell, 12-a male end terminal, 13-a first insulating plastic shell, 14-a second insulating plastic shell, 15-a first shielding cover and 16-a second shielding cover; 17-a first male end connector housing, 18-a second male end connector housing;

21-a female end connector shell, 22-a female end terminal, 23-a third insulating plastic shell and 24-a third shielding case; 25-grooves.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1, the present embodiment provides a coaxial high-speed connector, which includes a male end module 1 and a female end module 2, where the male end module 1 and the female end module 2 are welded to a corresponding PCB 3.

As shown in fig. 2 to 7, the male module 1 includes a male connector housing 11 and a plurality of male terminals 12 disposed in the male connector housing 11, the first insulating plastic housing 13 and the second insulating plastic housing 14 are sleeved outside the male terminals 12, and the first shielding cover 15 and the second shielding cover 16 are respectively sleeved outside the first insulating plastic housing 13 and the second insulating plastic housing 14. In this embodiment, the male terminal 12, the first and second insulating

plastic housings

13 and 14, and the first and

second shielding cases

15 and 16 are all cylindrical structures, so as to form a transmission channel with a uniform cross section and ensure good characteristic impedance.

Preferably, as shown in fig. 4 and 6, the lower end of the first shielding case 15 is further provided with two welding terminals 4, the two welding terminals 4 and the welding terminal 4 of the male terminal 12 are welded to the PCB 3, and the two welding terminals 4 of each first shielding case 15 are welded to the same grounding pad of the PCB 3.

Preferably, as shown in fig. 2 and 3, the male connector housing 11 includes a first male connector housing 17 and a second male connector housing 18; and the first male end connector shell 17 and the second male end connector shell 18 are both provided with a plurality of jacks for mounting the male end terminal 12.

Preferably, as shown in fig. 5 and 7, the male terminal 12 is a male round bar terminal, and the male round bar terminal has an L-shaped structure.

Preferably, as shown in fig. 5 and 7, the soldering end 4 of the male terminal 12 is chamfered to facilitate soldering and soldering stability, and the other end thereof is a contact end 6, and the contact end 6 thereof is conical.

Preferably, as shown in fig. 5 and 7, two symmetrical side walls of the male terminal 12 are planar structures, and the other two side walls are arc-shaped surface structures.

Preferably, as shown in fig. 5 and 7, the male terminal 12 is further provided with a plurality of circular arc-shaped clamping portions 5, and the circular arc-shaped clamping portions 5 are located on the arc-shaped surface of the male terminal 12.

As a preferred embodiment, as shown in fig. 8 to 11, the female terminal module 2 includes a female terminal connector housing 21 and a plurality of female terminals 22 disposed in the female terminal connector housing 21, a third insulating plastic housing 23 is sleeved outside the female terminals 22, and a third shielding cover 24 is sleeved outside the third insulating plastic housing 23.

In this embodiment, the female terminal 22, the third insulating plastic housing 23, and the third shielding cover 24 are also cylindrical structures, and form a transmission channel with a uniform cross section, thereby ensuring good characteristic impedance and ensuring high-speed transmission of coaxial signals.

As shown in fig. 11, preferably, one end of the female terminal 22 is a welding end 4, the other end is a contact end 6, and at least one groove 25 penetrating through the contact end 6 is formed on the female terminal 22 near the contact end 6, the contact end 6 is divided into a plurality of contact points by the groove 25, in this embodiment, the number of the groove 25 may be one or 2, and when there are two grooves 25, the groove 25 is a cross-shaped groove 25, so as to divide 4 contact points.

Preferably, as shown in fig. 11, two symmetrical sidewalls of the female terminal 22 are planar structures, and the other two sidewalls are arc-shaped surface structures.

As shown in fig. 11, preferably, the female terminal 22 is further provided with a plurality of circular arc-shaped clamping portions 5, and the circular arc-shaped clamping portions 5 are located on the arc-shaped surface of the female terminal 22.

Preferably, as shown in fig. 9, the third shielding shell 24 is further provided with two soldering terminals 4 at the lower end thereof, the two soldering terminals 4 and the soldering terminal 4 of the female terminal 22 are soldered to the PCB 3, and the two soldering terminals 4 of each third shielding shell 24 are soldered to the same ground pad of the PCB 3.

Preferably, as shown in fig. 9, the soldering terminal 4 of the female terminal 22 is a chamfered structure to facilitate soldering and soldering stability.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims

1. A coaxial high-speed connector characterized by: the PCB comprises a male end module (1) and a female end module (2) which are matched with each other, wherein the male end module (1) and the female end module (2) are welded with corresponding PCBs (3) together;

the male end module (1) comprises a male end connector shell (11) and a plurality of male end terminals (12) arranged in the male end connector shell (11), wherein a first insulating plastic shell (13) and a second insulating plastic shell (14) are sleeved on the outer sides of the male end terminals (12), and a first shielding cover (15) and a second shielding cover (16) are respectively sleeved on the outer sides of the first insulating plastic shell (13) and the second insulating plastic shell (14);

female end module (2) include female end connector casing (21) to and set up a plurality of female end terminal (22) in female end connector casing (21), female end terminal (22) outside cover be equipped with the insulating plastic casing of third (23), the insulating plastic casing of third (23) outside cover be equipped with third shield cover (24).

2. A coaxial high speed connector according to claim 1, wherein: public end terminal (12), first insulating plastic casing (13) and second insulating plastic casing (14), first shield cover (15) and second shield cover (16), female end terminal (22), third insulating plastic casing (23), third shield cover (24) be cylindrical structure to form the unanimous transmission passageway of cross section, guaranteed good characteristic impedance, guaranteed coaxial signal's high-speed transmission.

3. A coaxial high speed connector according to claim 2, wherein: the lower extreme of first shield cover (15) and third shield cover (24) respectively is provided with two corresponding welding ends (4), two welding ends (4) of first shield cover (15) and third shield cover (24) weld together with corresponding PCB board (3) respectively, and every two welding ends (4) of first shield cover (15), third shield cover (24) weld together with the same ground pad of corresponding PCB board (3).

4. A coaxial high speed connector according to claim 1, wherein: the male end connector shell (11) comprises a first male end connector shell (17) and a second male end connector shell (18); and the first male end connector shell (17) and the second male end connector shell (18) are both provided with a plurality of jacks for mounting the male end terminal (12).

5. A coaxial high speed connector according to claim 2, wherein: the male terminal (12) is a male round bar terminal, and the male round bar terminal is of an L-shaped structure.

6. A coaxial high speed connector according to claim 5, wherein: the welding end (4) of the male terminal (12) is of a chamfer structure and is welded with the PCB (3), the other end of the male terminal is a contact end (6), and the contact end (6) is of a conical structure.

7. A coaxial high speed connector according to claim 6, wherein: two symmetrical side walls of the male terminal (12) are of a plane structure, and the other two side walls are of an arc-shaped surface structure.

8. A coaxial high speed connector according to claim 7, wherein: the male terminal (12) is further provided with a plurality of arc-shaped clamping parts (5), and the arc-shaped clamping parts (5) are located on the arc-shaped surface of the male terminal (12).

9. A coaxial high speed connector according to claim 2, wherein: one end of the female terminal (22) is a welding end (4), the other end of the female terminal is a contact end (6), and the welding end (4) of the female terminal (22) is of a chamfer structure and is welded with the corresponding PCB (3);

and the female terminal (22) is provided with at least one male terminal module (1) (25) penetrating through the contact end (6) close to the contact end (6), and the contact end (6) is divided into a plurality of contact points through the male terminal module (1) (25).

10. A coaxial high speed connector according to claim 9, wherein: two symmetrical side walls of the female terminal (22) are of a plane structure, and the other two side walls are of an arc surface structure;

the female terminal (22) is further provided with a plurality of circular arc clamping parts (5), and the circular arc clamping parts (5) are located on the arc-shaped surface of the female terminal (22).