CN108448340B - Dual Shield Frame Assemblies - Google Patents

Abstract

The invention discloses a double-shielding frame assembly, which includes an insulator formed by combining two halves, two rows of signal terminals respectively supported by the two halves and arranged as differential pairs, and an insulator mounted on the insulator A first shielding part on one side, and a second shielding part mounted on the other side of the insulator and capable of being connected to the first shielding part. The double-shielding frame component of the present invention can reduce crosstalk between adjacent differential pair signal terminals in high-speed signal transmission by setting two shielding pieces connected together.

Description

Dual Shield Frame Assemblies

technical field

The present invention relates to the technical field of connectors, in particular to a double-shielded frame assembly, which can reduce crosstalk between adjacent differential pair signal terminals during high-speed signal transmission.

Background technique

High-speed docking connectors are used in markets such as networking and wireless devices to provide high-speed or higher-speed transmission. As an intermediary for signal interconnection and transmission, the development of high-speed docking connectors plays an extremely important role.

In high-speed docking connectors, differential signals are widely used for their good anti-interference performance. However, in practical applications, the structure of the existing high-speed docking connector cannot eliminate the crosstalk noise between the signal terminals of adjacent differential pairs, which seriously affects the signal integrity of the high-speed system.

Therefore, the applicant is actively researching a frame assembly capable of effectively reducing crosstalk between adjacent differential pairs during high-speed signal transmission.

Contents of the invention

The main purpose of the present invention is to provide a double-shielded frame assembly, which can effectively reduce crosstalk between adjacent differential pair signal terminals during high-speed signal transmission.

Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

In order to achieve the above object, the present invention adopts the following technical solutions: a double shielding frame assembly includes an insulator formed by combining two halves, two rows of signal terminals supported by the insulator and arranged as differential pairs, one mounted on A first shielding part on one side of the insulator, and a second shielding part installed on the other side of the insulator and capable of being connected with the first shielding part. One half supports one row of signal terminals, and the other half supports another row of signal terminals, and the two halves are combined so that the two rows of signal terminals form a plurality of differential pairs of signal terminals. The first shield is mounted on one half of the side away from the other half; the second shield is mounted on the other half of the side away from the half. Each signal terminal has a conductive contact portion exposed at the front end of the insulator, and a conductive tail portion protruding from the bottom edge of the insulator.

In one of the embodiments, there is at least one fixing groove between every two adjacent signal terminals of each half; when the two halves are combined, the corresponding fixing grooves on the two halves are connected to each other. It is connected to, runs through the left and right sides of the insulator, and is located between the signal terminals of two adjacent differential pairs.

In one embodiment, the first shielding member has a first vertical main body abutting against one side of the insulator, and at least one fixing arm capable of extending into a corresponding fixing slot.

In one embodiment, the second shielding member has a second vertical main body attached to the other side of the insulator, at least one elastic panel formed on the second vertical main body, and at least one A locking hole formed on the elastic panel and capable of aligning with the corresponding fixing groove; wherein the front end of the fixing arm of the first shielding part is inserted into the locking hole of the second shielding part, so that the first shielding part and the second shielding part The two shielding parts are connected and fixed together on the insulator.

In one embodiment, the fixing arm of the first shielding member is bent vertically toward the insulator, and at least one tooth-shaped insert is formed at the front end of the fixing arm.

In one embodiment, the elastic panel of the second shield protrudes toward the direction of the insulator.

In one embodiment, at least one heat dissipation channel is provided on both sides of the insulator; the first shielding member also has at least one first opening formed on the first vertical body portion; and the second The shielding element also has at least one second opening formed on the second vertical main body; wherein both the first opening and the second opening correspond to the heat dissipation channels of the insulator.

In one embodiment, the first shielding part further has at least one first flap bent away from the insulator, so as to be in contact with the second shielding part of the adjacent double shielding frame assembly; and the second shielding The member also has at least one second flap bent away from the insulator to contact the first shield member of another adjacent double shield frame assembly.

Compared with the prior art, the double-shielding frame component of the present invention can reduce crosstalk between adjacent differential pair signal terminals in high-speed signal transmission by providing two shielding pieces connected together.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the double-shielded high-speed docking connector of the present invention.

FIG. 2 is a schematic diagram of an exploded structure of the double-shielded high-speed butt joint connector shown in FIG. 1 of the present invention.

Fig. 3 is a schematic diagram of an exploded structure of the double-shielded high-speed butt connector according to the present invention along another direction.

Fig. 4 is a three-dimensional structural schematic diagram of the shell of the double-shielded high-speed docking connector of the present invention.

Fig. 5 is a structural schematic view of the casing of the present invention along another direction.

FIG. 6 is a schematic diagram of a cross-sectional structure of the housing along line A-A shown in FIG. 5 .

Fig. 7 is a schematic perspective view of the three-dimensional structure of the positioning seat of the double-shielded high-speed docking connector of the present invention.

Fig. 8 is a schematic cross-sectional structure diagram of the positioning seat along the line B-B shown in Fig. 7 .

Fig. 9 is an enlarged schematic diagram of the structure of the bottom part of the positioning seat of the present invention.

FIG. 10 is a schematic structural diagram of one of the double shielding frame assemblies shown in FIG. 2 , the double shielding frame assembly has a plurality of signal terminals arranged as differential pairs.

FIG. 11 is a schematic diagram of an exploded structure of the double-shielding frame assembly shown in FIG. 10 , where two shielding pieces are separated from both sides of the double-shielding frame assembly.

FIG. 12 is a schematic structural view of the double shielding frame assembly shown in FIG. 11 after further decomposition.

Fig. 13 is a schematic structural view of the double shielding frame assembly of the present invention along another direction.

FIG. 14 is a schematic diagram of an exploded structure of the double-shielding frame assembly shown in FIG. 13 , mainly showing that two shielding pieces are separated from both sides of the double-shielding frame assembly.

Fig. 15 shows the structural assembly relationship between the two shielding elements of the present invention.

Fig. 16 is a schematic diagram of the three-dimensional structure of the ground sheet of the present invention.

Fig. 17 is a schematic diagram of the bottom structure of the double-shielded high-speed butt connector of the present invention, which mainly shows the partial structure of the bottom.

Fig. 18 is a schematic structural view of a high-speed plug connector, which can be docked with the double-shielded high-speed butt connector of the present invention.

FIG. 19 is a schematic structural diagram of one of the double shielding frame assemblies of the high-speed plug connector shown in FIG. 18 .

FIG. 20 is a schematic diagram of docking between the high-speed docking connector shown in FIG. 1 and the high-speed plug connector shown in FIG. 18 .

The reference numerals in the above-mentioned accompanying drawings are explained as follows:

high-speed mating connector 1 housing 10

top wall 11 bottom wall 12

side wall 13 cavity 14

vertical wall 15 horizontal channel 16

positioning seat 20 upright wall 21

Vertical channel 22 Horizontal ground channel 23

Double Shield Frame Assembly 30 Insulator 31

Fixing slot 310 Cooling slot 311

Signal terminals 32, 32', 32a, 32b, 32c

Conductive Contact 320 Conductive Tail 321

First shield 33 First vertical body part 330

Fixed Arm 331 Toothed Insert 332

first opening 333 first flap 334

Second shield 34 Second vertical main body 340

Resilient panel 341 Keyhole 342

Second Opening 343 Second Flap 344

Half 35, 36 Ground Lug 40

Beam 41 U-shaped fixed part 42

Base 420 Arm 422

ground tail 43 retainer 50

Horizontal tab 51 Vertical tab 52

High Speed Plug Connectors 9 Plug Frame Assembly 90

Shields 91, 92.

Detailed ways

The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the attached drawings. direction. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

Please refer to FIG. 1 , FIG. 2 , and FIG. 3 , the double-shielded high-speed docking connector 1 of the present invention is called a high-speed socket connector here, and it can be installed on a circuit board (not shown) in parallel. The high-speed docking connector 1 includes an elongated shell 10 , an elongated positioning seat 20 , and a row of double-shielding frame assemblies 30 .

As shown in Figure 2, the housing 10 has a longer top wall 11, a shorter bottom wall 12, two side walls 13, and a wall surrounded by the top wall 11, the bottom wall 12 and the two side walls 13. The cavity 14 formed. In this embodiment, the shell is a die-cast metal shell, which can provide electromagnetic shielding.

As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the housing 10 also has a row of parallel stepped vertical walls 15, and several chambers separated from the cavity 14 by these vertical walls 15. Connected horizontal channel 16. The vertical walls 15 are located behind the housing 10 and perpendicular to the top wall 11 .

As shown in Fig. 2, Fig. 7 and Fig. 8, the positioning seat 20 is elongated, it has a row of parallel stepped upright walls 21, and a number of them are separated by these upright walls 21 and pass through the positioning seat Vertical channel 22 (marking sees Fig. 8) at 20 bottoms. In this embodiment, three vertical passages 22 are formed between every two upright walls 21 .

As shown in FIG. 9 , a transverse grounding groove 23 is formed on the bottom surface of the positioning seat 20 corresponding to the bottom position of each upright wall 21 .

As shown in Fig. 10, Fig. 11, Fig. 13 and Fig. 14, the double shielding frame assembly 30 has an insulator 31, two rows of signal terminals 32 supported by the insulator 31 and arranged as differential pairs, and one mounted on the insulator 31 A first shielding part 33 on one side, and a second shielding part 34 installed on the other side of the insulator 31 and capable of being connected to the first shielding part 33 . It should be noted that "connected" here means that the first shield 33 and the second shield 34 form a ground connection, and the way of realizing "connected" includes but is not limited to the contact between the two. connection, and the connection formed by the two being fixed together. One of the connection methods (such as fixed connection) will be introduced in detail later.

As shown in FIG. 11 , the insulator 31 has at least one fixing slot 310 passing through the left and right sides of the insulator 31 . The fixing groove 310 is located between two adjacent differential pair signal terminals 32 . In addition, at least one cooling channel 311 is disposed on both sides of the insulator 31 .

In this embodiment, as shown in FIG. 12 , the insulator 31 is formed by combining two halves 35, 36, wherein half 35 supports a row of signal terminals 32, and the other half 36 supports another row of signal terminals 32', The two halves 35, 36 are combined such that the two columns of signal terminals 32, 32' form a plurality of differential pairs of signal terminals 32a, 32b, 32c. The fixing groove 310 runs through the two halves 35 , 36 .

The structure of the insulator 31 will now be described in detail by taking the half portion 35 as an example. As shown in FIG. 12 , the half part 35 has a plurality of fixing slots 310 , and at least one fixing slot 310 is provided between every two adjacent signal terminals 32 of the half part 35 . The shapes of these fixing grooves 310 are different, for example, an upper fixing groove 310 is L-shaped, and a lower fixing groove 310 is in-line shape. When the two halves 35 , 36 are combined into an insulator 31 , the corresponding fixing slots 310 of the two halves 35 , 36 can communicate with each other.

As shown in FIG. 11 and FIG. 12 , each signal terminal 32 has a conductive contact portion 320 exposed at the front end of the insulator 31 and a conductive tail portion 321 protruding from the bottom edge of the insulator 31 . In this embodiment, the dual shield frame assembly 30 has six signal terminals 32 arranged as three differential pair signal terminals 32a, 32b, 32c.

As shown in FIG. 11 and FIG. 14 , the first shielding member 33 has a first vertical main body portion 330 and at least one fixing arm 331 perpendicular to the first vertical main body portion 330 . Wherein the first vertical body portion 330 can lean against one side of the insulator 31 , and the fixing arm 331 extends into the fixing groove 310 of the insulator 31 to prepare to cooperate with the second shielding member 34 . The fixing arm 331 is vertically bent toward the insulator 31 , and at least one tooth-shaped insert 332 is formed at a front end thereof. In this embodiment, the first shielding member 33 has three fixing arms 331 perpendicular to the first vertical body portion 330 , and two tooth-shaped inserts 332 are formed at the front ends of a part of the fixing arms 331 . Of course, in other embodiments, the numbers of the fixed arms 331 and the toothed inserts 332 can be changed according to structural requirements.

As shown in Fig. 11 and Fig. 14, the second shielding member 34 has a second vertical main body portion 340, at least one elastic panel 341 formed on the second vertical main body portion 340, and at least one elastic panel 341 formed on the elastic The locking hole 342 on the panel 341. Wherein the second vertical main body portion 340 can be attached to the other side of the insulator 31, the lock hole 342 is aligned with the corresponding fixing slot 310, ready to receive the insertion of the front end of the fixing arm 331 of the first shielding member 33 Inside the lock hole 342 . Specifically, please refer to FIG. 11 and FIG. 15 at the same time. The toothed insert 332 of the first shielding part 33 can be inserted into the lock hole 342 of the second shielding part 34, so that the first shielding part 33 and The second shielding part 34 is connected together so that the first shielding part 33 and the second shielding part 34 form an integral body, and both are firmly fixed on the insulator 31 . In addition, the elastic panel 341 protrudes toward the direction of the insulator 31 to ensure that the toothed insert 332 and the locking hole 342 will not be loosened after being locked. In this embodiment, the second shielding member 34 has a plurality of elastic panels 341 and a plurality of locking holes 342 . It can be seen that the number of the locking holes 342 can be determined according to the actual structure.

In more detail, the first shielding member 33 is mounted on one side of the half part 35 , and its first main body part 330 is away from the other half part 36 . The second shielding element 34 is mounted on one side of the other half 36 , and its second main body 340 is away from the half 35 .

In addition, as shown in FIG. 11 , the first shielding member 33 also has at least one first opening 333 formed on the first vertical body portion 330 , and the second shielding member 34 also has at least one first opening 333 formed on the first vertical body portion 330 . The second opening 343 on the second vertical body portion 340 , the first opening 333 and the second opening 343 correspond to the heat dissipation channel 311 of the insulator 31 , which can keep the heat dissipation channel 311 unobstructed.

As shown in FIG. 11 , the first shield 33 also has at least one first flap 334 bent away from the insulator 31 , capable of contacting the second shield of the adjacent double shield frame assembly (not marked). , thus forming a complete shield. Similarly, as shown in FIG. 14 , the second shielding member 34 also has at least one second flap 344 bent away from the insulator 31, which can be combined with the first shielding member of another adjacent double shielding frame assembly. Contact, thus forming a complete shielding structure.

Of course, some structures matching with the insulator 31 may also be provided on the first shielding part 33 and/or the second shielding part 34 to enhance the bonding force between the two shielding parts 33 , 34 and the insulator 31 .

During assembly, as shown in FIG. 11 , the first shielding member 33 is mounted on one side of the insulator 31 , and each fixing arm 331 extends into the corresponding fixing groove 310 of the insulator 31 , and can be isolated from the fixing arm 310 in the fixing groove 310. Two adjacent differential pairs of signal terminals 32 on both sides, thereby reducing the crosstalk between two adjacent differential pairs of signal terminals 32; the second shield 34 is installed on the other side of the insulator 31, and the first shield 33 The toothed inserts 332 can be inserted into the lock holes 342 of the second shield 34 , so that the first shield 33 and the second shield 34 are fixed on the insulator 31 .

When assembling, please refer to FIG. 2 , FIG. 3 , and FIG. 10 at the same time. The conductive contact portion 320 of each double shielding frame assembly 30 passes through the corresponding horizontal channel 16 from the rear of the housing 10 and enters the housing 10. Cavity 14 (as shown in FIG. 1 ), ready to be docked with a high-speed plug connector. The conductive tails 321 of the double shielding frame assembly 30 pass through the corresponding vertical channel 22 from above the positioning seat 20 , and protrude from the bottom surface of the positioning seat 20 , as shown in FIG. 17 . At this time, the stepped vertical walls 21 of the positioning seat 20 cooperate with the stepped vertical walls 15 of the housing 10 to surround the double shielding frame components 30 to form a whole.

As shown in FIGS. 2 and 3 , the double-shielded high-speed butt connector 1 also includes a row of mountain-shaped grounding plates 40 .

As shown in FIG. 16 , each ground piece 40 is in the shape of a mountain. The ground plate 40 has a beam 41 , three U-shaped fixing portions 42 protruding from the beam 41 , and at least one grounding tail portion 43 protruding from one of the fixing portions. In this embodiment, the beam 41 is a vertical plate structure, and each U-shaped fixing portion 42 has a base 420 and two arms 422 symmetrically arranged on two sides of the base 420 and perpendicular to the base 420 . In this embodiment, the ground tail 43 is in the shape of a needle eye, and extends downward from the lower edge of the base 420 . In one embodiment, the ground plate 40 has three ground tails 43 respectively formed on the three U-shaped fixing portions 42 .

When assembling, please refer to Fig. 9 and Fig. 17 at the same time, each ground piece 40 is installed in the corresponding transverse ground groove 23 on the bottom surface of the positioning seat 20, and each U-shaped fixing part 42 is aligned on the The differential pair signal terminals 32 in the transverse ground slot 23 . The three ground tails 43 protrude from the bottom surface of the positioning base 20 .

In addition, as shown in FIG. 2 and FIG. 3 , the double-shielded high-speed docking connector 1 of the present invention also includes a strip-shaped holder 50 . The fixture 50 has a horizontal fixing piece 51 and a vertical fixing piece 52 perpendicular to each other, the horizontal fixing piece 51 is fixed to the top wall 11 of the housing, and the vertical fixing piece 52 is fixed to the rear of the positioning seat 20 On the surface.

Please refer to FIG. 18 , the present invention also provides another double-shielded high-speed butt connector, which is called a high-speed plug connector 9 here. As shown in FIG. 19 , two shielding elements 91 , 92 are provided on the plug frame assembly 90 of the high-speed plug connector 9 , so that the crosstalk between adjacent differential pair signal terminals can be effectively reduced.

As shown in FIG. 20 , the high-speed plug connector 9 can be mated with the above-mentioned high-speed receptacle connector (double-shielded high-speed docking connector 1 ).

To sum up, the double-shielded frame assembly 30 of the present invention can reduce the crosstalk between adjacent differential pair signal terminals 32 in high-speed signal transmission by providing two shields 33 and 34 connected together. The double-shielded high-speed butt connector 1 of the present invention not only reduces the number of adjacent differential pairs by setting a double-shielded structure that is connected or fixed together on each double-shielded frame assembly 30, such as the first shield 33 and the second shield 34, The crosstalk between the signal terminals 32 can also effectively reduce the signal interference between adjacent frame components 30 . In addition, crosstalk can be further reduced by providing the ground sheet 40 .

Claims (5)

1. a kind of double shield frame assembly, include one be combined by two half-unit insulator, two column are by the insulator branch The signal terminal of differential pair is supportted and be arranged to, one the first shielding part of the insulator side is installed on and one is installed on this The insulator other side and the secondary shielding part that can be connected with first shielding part；

Wherein a half portion supports a column signal terminal, and another half portion supports another column signal terminal, the two half portions, which combine, to be made It obtains this two column signals terminal and constitutes multiple differential pair signal terminals；

First shielding part is installed on the wherein one side far from another half portion of a half portion；The secondary shielding part is installed on separately On the separate wherein one side of a half portion of one half portion；

Each signal terminal all has the electrically conducting contact that one is exposed to the insulator front end and the stretching insulator bottom edge Conductive tail；It is characterized by:

Wherein at least one fixing groove is all had between every two adjacent signal terminals of each half portion；When the two half portions combine Afterwards, the corresponding fixing groove in the two half portions is interconnected, at left and right sides of the insulator and positioned at adjacent two Between differential pair signal terminal；

First shielding part has the first vertical main part of a side for being posted by the insulator and at least one can extend into Fixed arm in corresponding fixing groove；

The secondary shielding part have the second vertical main part of the other side for being posted by the insulator, at least one be formed in this Resilient panel and at least one on two vertical main parts are formed in the resilient panel and can be directed at corresponding fixing groove Lockhole；Wherein the front end of the fixed arm of first shielding part is inserted into the lockhole of the secondary shielding part, so that first shielding Part is connected with the secondary shielding part and is fixed on the insulator together.

2. double shield frame assembly as described in claim 1, it is characterised in that: the fixed arm of first shielding part is exhausted towards this The vertical bending of edge body forms, and is formed with an at least dentation inserted sheet in the front end of the fixed arm.

3. double shield frame assembly as described in claim 1, it is characterised in that: the resilient panel direction of the secondary shielding part should It protrudes in the direction of insulator.

4. double shield frame assembly as described in claim 1, it is characterised in that: the two sides of the insulator are each provided at least one Radiate conduit；

First shielding part also has at least one the first aperture being formed on the first vertical main part；And

The secondary shielding part also has at least one the second aperture being formed on the second vertical main part；

Wherein first aperture and second aperture both correspond to the heat dissipation conduit of the insulator.

5. double shield frame assembly as described in claim 1, it is characterised in that: first shielding part also has at least one towards remote First tabs of the direction bending from the insulator, to be contacted with the secondary shielding part of adjacent double shield frame assembly；And

The secondary shielding part also have at least one towards the direction bending far from the insulator the second tabs, with it is another adjacent double First shielding part of shielding frame component contacts.