CN105990767B - Backboard plug connector - Google Patents

Abstract

The invention discloses a backplane plug connector. A plurality of terminal holes, a plurality of fixing through holes and a plurality of fixing grooves are formed on a bottom plate. Each fixing through hole is arranged around a pair of terminal holes; each fixing slot is located between two adjacent fixing through holes in the same row and communicates with these two adjacent fixing through holes. The differential pairs are mounted in corresponding terminal holes. The first shielding part and the second shielding part are installed symmetrically in the two adjacent fixing through holes. The third shielding part is installed in the fixing groove and the two adjacent fixing through holes to connect the first shielding part and the second shielding part. The backplane plug connector of the present invention can use the third shield to connect adjacent first shields and second shields in the same row, thereby improving the shielding effect.

Description

Backplane Plug Connector

technical field

The invention relates to a connector, in particular to a backplane plug connector with good shielding effect.

Background technique

The backplane plug connector includes multiple plug terminals and multiple shields. These plug terminals are arranged in the form of differential pairs. For example, every two plug terminals form a differential pair, and the shield surrounds the corresponding differential pair. , thereby providing electromagnetic shielding for the corresponding differential pair.

Generally, the existing shields are provided with three retaining walls, but since these shields work independently, they can only provide shielding for the corresponding differential pairs, so the shielding effect is not good. Once the shielding effect of one of the shields becomes poor, it cannot be rescued by other shields, which will directly affect the signal transmission quality of the entire backplane plug connector.

Therefore, it is necessary to provide a backplane plug connector with good shielding effect.

Contents of the invention

The main purpose of the present invention is to provide a backplane plug connector with a plurality of first shields, a plurality of second shields and a plurality of third shields, wherein the third shields can The adjacent first shielding part is connected with the second shielding part, thereby improving the shielding effect of the backplane plug connector.

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

To achieve the above purpose, the present invention adopts the following technical solution: a backplane plug connector includes a base, several differential pairs, several first shields, several second shields, and several third shields . The base includes a bottom plate on which several terminal holes, several fixing through holes, and several fixing slots are formed; wherein these terminal holes are arranged on the bottom plate in the form of multiple rows and columns, each Two terminal holes form a pair to accommodate corresponding differential pairs; each fixing through hole is arranged around the corresponding pair of terminal holes; each fixing groove is located in the same row of two adjacent fixing through holes between and communicate with the two adjacent fixed through holes. The differential pair is mounted in a corresponding pair of terminal holes. The structure of the first shielding part and the second shielding part are symmetrical, and they are installed symmetrically in the two adjacent fixing through holes, so as to enclose two adjacent differential pairs respectively. The third shielding part is installed in the fixing groove and the two adjacent fixing through holes to connect the first shielding part and the second shielding part; wherein the third shielding part and the first shielding part surround together One of the two adjacent differential pairs, and the third shield and the second shield jointly surround the other differential pair.

In one of the embodiments, the fixing through hole runs through the upper and lower surfaces of the base plate, and the fixing through hole is U-shaped, which has a long side parallel to the length direction of the base plate, and two oppositely arranged and perpendicular on the short side of the long side.

In one of the embodiments, the fixing groove is formed on the lower surface of the bottom plate, capable of connecting two adjacent short sides of the two adjacent fixing through holes, and the fixing groove is connected to the two adjacent short sides. The sides form a U-shaped structure.

In one embodiment, the first shielding member is a vertical member with an L-shaped cross-section, including a first longitudinal portion, a first transverse portion perpendicular to the first longitudinal portion, and a first transverse portion from the first longitudinal portion. A first tail portion extending downwards from a transverse portion; the first longitudinal portion and the first transverse portion are respectively fixed to the long side and the short side of one of the two adjacent fixing through holes , and the first longitudinal portion and the first transverse portion are located above the base plate and surround one of the differential pairs, and the first tail portion is located below the base plate.

In one embodiment, the second shielding member is a vertical member with an L-shaped cross section, including a second longitudinal portion, a second transverse portion perpendicular to the second longitudinal portion, and a The second tail part extending downward from the two transverse parts; the second longitudinal part and the second transverse part are respectively fixed to the long side part and the short side part of the other fixing through hole of the two adjacent fixing through holes , and the second longitudinal portion and the second transverse portion are located above the base plate and surround the other differential pair, and the second tail portion is located below the base plate.

In one embodiment, the third shielding member includes a U-shaped fixing frame, two third transverse parts located above the U-shaped fixing frame and oppositely arranged, and two third transverse parts located below the U-shaped fixing frame and The third tail portion that is oppositely arranged; wherein the two third tail portions are located below the base plate, the U-shaped fixing bracket is fixed in the U-shaped structure formed by the fixing groove and the two adjacent short sides, and this The two third transverse portions pass through the two adjacent short side portions and are located above the bottom plate.

In one embodiment, one of the third lateral portions of the third shielding member is disposed opposite to the first lateral portion of the first shielding member, and the one of the third lateral portion, the first lateral portion, and the first lateral portion A longitudinal portion constitutes a U-shaped shielding structure for enclosing one of the differential pairs; the other third transverse portion of the third shielding member is opposite to the second transverse portion of the second shielding member, and the other The third transverse portion, the second transverse portion and the second longitudinal portion form another U-shaped shielding structure for surrounding the other differential pair.

In one embodiment, an outwardly protruding contact portion is formed on the side edges of the first longitudinal portion and the second longitudinal portion, and these two contact portions are respectively connected to the left and right sides of the U-shaped fixing frame. touch.

In one of the embodiments, at least one protruding point is formed on both the first longitudinal portion and the second longitudinal portion, which can form a tight fit with the corresponding long side portion; Each part is formed with a thorn, which can form an interference fit with the corresponding short side part.

Compared with the prior art, the backplane plug connector of the present invention connects adjacent first shields and second shields in the same row through the third shield, thereby improving the shielding of the backplane plug connector. Effect.

Description of drawings

FIG. 1 is a schematic perspective view of the three-dimensional structure of the backplane plug connector of the present invention.

FIG. 2 is an exploded schematic diagram of the structure of the backplane plug connector shown in FIG. 1 according to the present invention.

FIG. 3 is a schematic perspective view of another direction of the backplane plug connector of the present invention.

FIG. 4 is an exploded schematic diagram of the structure of the backplane plug connector shown in FIG. 3 of the present invention.

FIG. 5 is a schematic structural diagram of the first shielding part and the second shielding part of the backplane plug connector of the present invention.

FIG. 6 is a schematic structural diagram of a third shielding member of the backplane plug connector of the present invention.

7 is a schematic diagram showing the structure and positional relationship of the first shield, the second shield and the third shield of the backplane plug connector of the present invention.

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

backplane header connector 1 base 10

Vertical plate 11 Guide groove 110

Base plate 12 Terminal hole 13

Fixed through hole 14, 14’ Long side 140, 140’

Short side 141, 141' Fixing slot 15

Width direction C Length direction R

Differential pair 20, 20' butt end 201

Tail end 202 Fixed part 203

First shield 30 First longitudinal portion 301

first transverse portion 302 first rear portion 303

Bumps 304, 404 Spikes 305, 405

Contacts 306, 406 Second shield 40

Second longitudinal section 401 Second transverse section 402

Second Tail 403 Third Shield 50

Fixing frame 501 third transverse part 502, 503

third tail 504

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 the backplane plug connector 1 of the present invention shown in Fig. 1 to Fig. 4, Fig. 1 is a three-dimensional structural schematic diagram of the backplane plug connector 1 of the present invention; Fig. 2 is a backplane plug connector 1 of the present invention shown in Fig. 1 FIG. 3 is a schematic diagram of a three-dimensional structure of the backplane plug connector 1 of the present invention in another direction; and FIG. 4 is a schematic diagram of an exploded structure of the backplane plug connector 1 of the present invention shown in FIG. 3 .

As shown in Figures 1 to 4, the backplane plug connector 1 of the present invention includes a base 10, several differential pairs 20, several first shields 30, several second shields 40, and several third Shield 50 .

As shown in FIGS. 2 and 4 , the base 10 includes two opposite vertical plates 11 and a bottom plate 12 connecting the two vertical plates 11 . A plurality of guiding grooves 110 are formed on the inner surface of each vertical board 11 for guiding and fixing a socket connector (not shown) mated with it. The bottom plate 12 is formed with several terminal holes 13 for receiving and fixing these differential pairs 20, several fixing through holes 14 for receiving and fixing these first shielding parts 30 and second shielding parts 40, and several to fix the fixing slots 15 of these third shielding components 50 (as shown in FIG. 4 ). Wherein these terminal holes 13 and fixing through holes 14 all pass through the upper and lower surfaces of the base plate 12, and are arranged on the base plate 12 in the form of multiple rows and columns, and these fixing grooves 15 are formed in the base plate 12. lower surface. In this embodiment, the fixing grooves 15 do not penetrate through the bottom plate 12 , but they may also penetrate the upper and lower surfaces of the bottom plate 12 as required.

As shown in FIG. 2 , every two of the terminal holes 13 form a pair for accommodating the corresponding differential pair 20 . These terminal holes 13 are arranged in multiple rows and columns on the bottom plate 12 . In this embodiment, these terminal holes 13 are arranged in six rows and four columns, and the terminal holes 13 in two adjacent rows are not aligned but arranged appropriately staggered. Furthermore, each row of terminal holes 13 is linearly arranged along the length direction R of the base plate 12 , and each column of terminal holes 13 is arranged in a staggered manner along the width direction C of the base plate 12 . It should be noted that, in the present invention, the row refers to along the length direction R of the bottom board 12 , and the column refers to along the width direction C of the bottom board 12 .

As shown in FIG. 2 , the above-mentioned fixing through holes 14 are U-shaped, and are arranged around the corresponding pair of terminal holes 13 . In this embodiment, the fixing through hole 14 has a long side portion 140 parallel to the longitudinal direction R of the bottom plate 12 , and two short side portions 141 opposite to and perpendicular to the long side portion 140 . In more detail, a fixing through hole 14 is provided around each pair of terminal holes 13 , and these fixing through holes 14 are arranged around the corresponding terminal holes 13 in the same manner.

As shown in FIG. 4, the above-mentioned fixing groove 15 is formed on the lower surface of the base plate 12 and is located between two adjacent fixing through holes 14, 14' in the same row, and connects two adjacent short sides 141, 141'. Therefore, on the lower surface of the bottom plate 12, the fixing groove 15 and the two adjacent short sides 141, 141' form a U-shaped structure. In this embodiment, the fixing groove 15 and the two adjacent fixing through holes 14, 14' form a set of shield fixing structures, so that two sets of shield fixing structures are formed in each row.

As shown in FIG. 2 , the above-mentioned differential pair 20 includes two differential signal terminals, and each differential signal terminal has a pair of docking ends 201, a tail end 202, and a fixed portion connecting the docking end 201 and the tail end 202. 203. As shown in Figure 1, the above-mentioned differential pair 20 is installed in the corresponding terminal hole 13, wherein the butt end 201 is located above the base plate 12; the tail end 202 is located below the base plate 12; 2 ) is fixed in the corresponding terminal hole 13 .

As shown in Figure 5, the above-mentioned first shielding member 30 is a vertical member with an L-shaped cross section, which includes a first longitudinal portion 301, a first transverse portion 302 perpendicular to the first longitudinal portion 301, and A first tail portion 303 extends downward from the first transverse portion 302 . The structure of the second shielding member 40 is symmetrical to that of the first shielding member 30 . The second shield 40 is also a vertical member with an L-shaped cross section, which includes a second longitudinal portion 401, a second transverse portion 402 perpendicular to the second longitudinal portion 401, and a The lateral portion 402 has a second tail portion 403 extending downward. In this embodiment, at least one protruding point 304, 404 is formed on the first longitudinal portion 301 and the second longitudinal portion 401, which can form a tight fit with the corresponding long side portion 140 (see Figure 2 for labels); A thorn 305 , 405 is formed on the first transverse portion 302 and the second transverse portion 402 , which can form an interference fit with the corresponding short side portion 141 (see FIG. 2 for symbols). In addition, an outwardly protruding contact portion 306 , 406 is respectively formed on side edges of the first longitudinal portion 301 and the second longitudinal portion 401 .

As shown in FIG. 2, the first shielding member 30 and the second shielding member 40 can be installed symmetrically in the two adjacent fixing through holes 14, 14', so as to surround and shield two adjacent differential For 20, 20'. The first longitudinal portion 301 and the second longitudinal portion 401 are spaced apart from each other and arranged in a straight line, while the first transverse portion 302 and the second transverse portion 402 face each other. Specifically, the first longitudinal portion 301 and the first transverse portion 302 are respectively fixed in the long side portion 140 and the short side portion 141 of one of the fixing through holes 14, and the first longitudinal portion 301 and the second A transverse portion 302 is located above the base plate 12 and surrounds one of the differential pairs 20 , and the first tail portion 303 (as shown in FIG. 4 ) is located below the base plate 12 . The second longitudinal portion 401 and the second transverse portion 402 are respectively fixed in the long side portion 140 ′ and the short side portion 141 ′ of another fixing through hole 14 ′, and the second longitudinal portion 401 and the second The transverse portion 402 is located above the bottom plate 12 and surrounds another differential pair 20 ′, and the second tail portion 403 (as shown in FIG. 4 ) is located below the bottom plate 12 .

As shown in Figure 6, the above-mentioned third shielding member 50 includes a U-shaped fixing frame 501, two third transverse parts 502, 503 located above the U-shaped fixing frame 501 and oppositely arranged, and two positioned on the U-shaped fixing frame 501 The third tail portion 504 is located below and opposite to the fixing frame 501 . The specific structure of the U-shaped fixing frame 501 can also be referred to in FIG. 4 . As shown in FIG. 7 , the third shielding member 50 is located between the first shielding member 30 and the second shielding member 40 , wherein a third transverse portion 502 of the third shielding member 50 is connected to the first shielding member The first transverse portion 302 of 30 is oppositely disposed, and the third transverse portion 502 , the first transverse portion 302 and the first longitudinal portion 301 can form a U-shaped shielding structure. Another third transverse portion 503 of the third shielding member 50 is arranged opposite to the second transverse portion 402 of the second shielding member 40, and the third transverse portion 503, the second transverse portion 402 and the second longitudinal Part 401 can constitute another U-shaped shielding structure. At the same time, the contact portions 306 and 406 (reference number 306 in FIG. 5 ) of the first shielding member 30 and the second shielding member 40 are in contact with the left and right sides of the U-shaped fixing frame 501 respectively, thereby realizing the first and second 1. The connection between the third shielding elements 30 , 40 , 50 , that is to realize the interconnection of the two U-shaped shielding structures. Since the two U-shaped shielding structures of the present invention are connected to each other, a safe shielding structure can be formed, thereby improving the shielding effect of the backplane plug connector 1 .

As shown in Fig. 3 and Fig. 4, when the third shielding member 50 is fixed on the bottom plate 12, the two third tail portions 504 of the third shielding member 50 are located below the bottom plate 12, and the U-shaped fixing frame 501 is fixed in the U-shaped structure formed by the fixing groove 15 and the two adjacent short side parts 141, 141', and the two third transverse parts 502, 503 pass through the two adjacent short side parts. The edge portions 141 , 141 ′ are located above the bottom plate 12 . As shown in FIG. 2, the U-shaped shield structure formed by the third transverse portion 502, the first transverse portion 302 and the first longitudinal portion 301 surrounds the corresponding differential pair 20, and the third transverse portion 503 , the other U-shaped shielding structure formed by the second transverse portion 402 and the second longitudinal portion 401 surrounds the corresponding differential pair 20 ′.

In summary, the third shield 50 of the backplane plug connector 1 of the present invention can connect adjacent first shields 30 and second shields 40 in the same row, thereby improving the backplane plug connection. The shielding effect of device 1.

Claims (4)

1. A kind of 1. backboard plug connector, it is characterised in that：The backboard plug connector includes a pedestal, several difference To, several first shielding parts, several secondary shielding parts and several the 3rd shielding parts；

   The pedestal includes a bottom plate, on which floor plate formed with several terminal holes, several fixed vias and several Fixing groove；Wherein these terminal holes be in the form of multiple lines and multiple rows arrangement on which floor plate, each two terminal hole partner with House corresponding differential pair；Each fixed via may be contained within around corresponding a pair of end sub-aperture；Each fixing groove is equal Between two adjacent fixed vias of same a line and the fixed via adjacent with the two connects；The wherein fixed via U-shaped, it runs through the upper and lower surface of the bottom plate, and the fixed via has a long leg parallel to the length direction of the bottom plate, And two be oppositely arranged and perpendicular to the short leg of the long leg；The fixing groove is formed at the lower surface of the bottom plate and connects this Two adjacent short legs of two adjacent fixed vias, the fixing groove short leg formation one adjacent with the two are U-shaped Structure；

   The differential pair is installed in corresponding a pair of end sub-aperture；

   The symmetrical configuration of first shielding part and the secondary shielding part, and it is symmetrically arranged on the two adjacent fixed vias In, for surrounding two adjacent differential pairs respectively；And

   3rd shielding part is installed in the fixing groove and the two adjacent fixed vias, and connect first shielding part with The secondary shielding part；It is wherein one poor to surround the two adjacent differentials pair jointly for wherein the 3rd shielding part and first shielding part Point pair, and the 3rd shielding part and the secondary shielding part then surround another differential pair jointly；

   Wherein first shielding part is the L-shaped stay in a cross section, including a first longitudinal direction portion, one perpendicular to this First transverse part in one longitudinal portion and first afterbody extended downwardly from first transverse part；The first longitudinal direction portion is with being somebody's turn to do First transverse part is individually fixed in long leg and the short leg of a wherein fixed via for the two adjacent fixed vias In, and the first longitudinal direction portion and first transverse part are respectively positioned on the top of the bottom plate and surround a wherein differential pair, and this One afterbody is then located at the lower section of the bottom plate；

   The secondary shielding part is the L-shaped stay in a cross section, including a second longitudinal direction portion, one second vertical perpendicular to this The second transverse part and second afterbody extended downwardly from second transverse part to portion；The second longitudinal direction portion with this second Transverse part is individually fixed in the long leg and the short leg of another fixed via of the two adjacent fixed vias, and The second longitudinal direction portion and second transverse part are respectively positioned on the top of the bottom plate and surround another differential pair, second afterbody then position In the lower section of the bottom plate；And

   3rd shielding part includes a U-shaped fixed mount, two tops for being located at the U-shaped fixed mount and the 3rd horizontal stroke being oppositely arranged To portion and two lower sections for being located at the U-shaped fixed mount and the 3rd afterbody being oppositely arranged；Wherein the two the 3rd afterbodys are located at The lower section of the bottom plate, the U-shaped fixed mount are fixed in the U-shape structure formed by the fixing groove and the two adjacent short sides portions, And the two the 3rd transverse parts are then through the two adjacent short legs and positioned at the top of the bottom plate.
2. 2. backboard plug connector as claimed in claim 1, it is characterised in that：Wherein the one the 3rd of 3rd shielding part is laterally Portion and the first transverse part of first shielding part are oppositely arranged, and wherein one the 3rd transverse part, first transverse part and should First longitudinal direction portion forms a U-shaped shielding construction with a common encirclement wherein differential pair；The another 3rd of 3rd shielding part Transverse part is then oppositely arranged with the second transverse part of the secondary shielding part, and another 3rd transverse part, second transverse part And the second longitudinal direction portion forms another U-shaped shielding construction to surround another differential pair jointly.
3. 3. backboard plug connector as claimed in claim 1, it is characterised in that：In the first longitudinal direction portion and the second longitudinal direction portion Lateral edges respectively formed with a contact site protruded outward, the two contact sites left and right sides phase with the U-shaped fixed mount respectively Contact.
4. 4. backboard plug connector as claimed in claim 1, it is characterised in that：In the first longitudinal direction portion and the second longitudinal direction portion An at least salient point has been respectively formed on, tight fit can be formed with corresponding long leg；In first transverse part and second transverse direction Portion has been respectively formed on a convex thorn, can form interference engagement with corresponding short leg.