CN113314895A - High-speed backplane connector and connector system - Google Patents
High-speed backplane connector and connector system Download PDFInfo
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- CN113314895A CN113314895A CN202110620459.1A CN202110620459A CN113314895A CN 113314895 A CN113314895 A CN 113314895A CN 202110620459 A CN202110620459 A CN 202110620459A CN 113314895 A CN113314895 A CN 113314895A
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- 125000006850 spacer group Chemical group 0.000 claims description 35
- 230000013011 mating Effects 0.000 claims description 33
- 210000001503 joint Anatomy 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
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Abstract
The application discloses a high-speed backplane connector and a connector system, which are used for solving the problems of interference and crosstalk between adjacent pairs of differential signal terminals. The high-speed backplane connector comprises a plurality of terminal module units and an insulating shell for accommodating the terminal module units, wherein each terminal module unit comprises a plurality of pairs of differential signal terminals arranged in a terminal row, a plurality of conductive spacing pieces arranged in the terminal row at intervals and a shielding plate; the shielding plate is fixed on one side of the fixed frame and is connected with the conductive spacing sheet; the shielding plate includes the concave strip and the sand grip of alternative setting, and the shielding side of concave strip stretches into in the terminal row and aligns and be connected with electrically conductive space piece, and the shielding side of sand grip surrounds a pair of differential signal terminal that corresponds, through setting up the concave strip with the sand grip can form the shielding to this pair of differential signal terminal, has reduced interference and crosstalk between the differential signal terminal of adjacent pair effectively.
Description
Technical Field
The present application relates to the field of electrical connectors, and in particular, to a high-speed backplane connector and connector system.
Background
Backplane connectors (backpanel connectors) are a type of connector commonly used in large-scale communication equipment, ultra-high performance servers and supercomputers, industrial computers, and high-end storage devices. The backplane connector is mainly used for connecting a single board (daughter card) and a backplane, a 90-degree vertical structure is formed between the single board and the backplane, and the backplane connector is used for transmitting a high-speed differential signal (differential signal) or a single-ended signal (single end signal) and transmitting a large current.
As signal transmission speeds have become higher and higher due to the development of communication technologies, it is necessary to solve the problems of interference and crosstalk between adjacent pairs of differential signal terminals due to high-speed transmission of high-frequency signals.
Therefore, it is desirable to provide a high-speed backplane connector and a connector system with good grounding effect.
Disclosure of Invention
The high-speed backplane connector and the connector system provided by the embodiment of the application are used for solving the problems of interference and crosstalk caused by distributed capacitance, inductance and the like due to high-speed transmission of high-frequency signals.
To achieve the above object, in one aspect, the present application provides a high-speed backplane connector, including a plurality of terminal module units arranged in parallel, and an insulating housing for receiving and fixing the terminal module units, wherein each terminal module unit includes: a sheet-like fixed frame having a butt edge and a mounting edge which are perpendicular to each other; a plurality of pairs of differential signal terminals arranged in a terminal row and supported by the fixed frame; each pair of differential signal terminals having a mating contact extending forwardly and beyond the mating edge, a mounting contact extending downwardly and beyond the mounting edge perpendicular to the mating contact, and a base connecting the mating contact and the mounting contact; a plurality of conductive spacers arranged at intervals in the terminal rows; each conductive spacing piece is provided with a plug-in end which extends forwards and extends out of the butt joint edge and a connecting end which is integrally formed with the plug-in end and is arranged reversely; the shielding plate is fixed on one side of the fixed frame and is connected with the conductive spacing piece; the shielding plate comprises concave strips and convex strips which are alternately arranged, the concave strips face the fixed frame and extend into the terminal rows, the terminal rows are aligned and connected with the conductive spacing pieces, the convex strips face away from the fixed frame, the direction of the convex strips is convex, and each convex strip surrounds a corresponding pair of differential signal terminals.
In some embodiments of this application, the shield plate has a shielding inboard and a shielding outside of relative setting, the shielding inboard orientation fixed frame, the shielding outside is kept away from fixed frame, at least one concave strip the shielding inboard stretch into adjacent two pairs between the differential signal terminal and with the link of electrically conductive space piece aligns and connects, at least one the sand grip the shielding inboard surrounds corresponding a pair of differential signal terminal.
In some embodiments of the present application, the shield has a front edge and a bottom edge that are perpendicular to each other, and each of the female strips extends downwardly at the bottom edge to form a ground pin that is aligned with the mounting contacts of the differential signal terminals in the terminal array.
In some embodiments of the present application, at least one of the female strips has a mating section extending toward the front edge, a mounting section perpendicular to the mating section and extending toward the bottom edge, and an intermediate section connecting the mating section and the mounting section, the ground pin being disposed on the mounting section and extending vertically downward, wherein in the same terminal module unit, the ground pin is aligned with the mounting contacts of the differential signal terminals.
In some embodiments of the present application, the shielding plate is provided with a fixing structure, and the fixing structure is located in an extending direction of the concave strip; the conductive spacer is provided with a connecting structure, the connecting end extends to the inner cavity of the fixed frame, and the connecting structure is close to the connecting end and connected with the fixed structure so as to connect the shielding plate with the conductive spacer.
In some embodiments of the present application, the fixing structure is a plurality of protruding pieces disposed on the shielding plate, the protruding pieces are bent and extended toward the fixing frame, the connecting structure is a receptacle disposed on the conductive spacer and corresponding to the protruding pieces, and the protruding pieces are inserted into the receptacles.
In some embodiments of the present application, the shielding plate has a shielding main board and a shielding front board connected to the shielding main board and close to the front end, the shielding front board is provided with a connecting portion, the connecting portion faces the shielding inner side, and the connecting portion can connect two adjacent shielding plates in the terminal module unit.
In some embodiments of the present application, the connecting portion is a collar extending perpendicularly from an upper edge or a lower edge of the shield front plate toward the inside of the shield.
In some embodiments of the present application, the shield front plate is provided with a plurality of elastic fingers protruding toward the inside of the shield.
In another aspect, the present application further provides a connector system including a first connector and a second connector mated with each other, the first connector including a U-shaped base, a plurality of pairs of first differential signal terminals fixed to the base, and a plurality of first shields fixed to the base corresponding to the first differential signal terminals; the second connector includes a plurality of terminal module units arranged in parallel, and an insulating housing for receiving and fixing the terminal module units, each of the terminal module units including: a sheet-like fixed frame having a butt edge and a mounting edge which are perpendicular to each other; a plurality of pairs of differential signal terminals arranged in a terminal row and supported by the fixed frame; each pair of differential signal terminals having a mating contact extending forwardly and beyond the mating edge, a mounting contact extending downwardly and beyond the mounting edge perpendicular to the mating contact, and a base connecting the mating contact and the mounting contact; a plurality of conductive spacers arranged at intervals in the terminal rows; each conductive spacing piece is provided with a plug-in end which extends forwards and extends out of the butt joint edge and a connecting end which is arranged in a reverse direction with the plug-in end; the shielding plate is fixed on one side of the fixed frame and is connected with the conductive spacing piece; the shielding plate comprises concave strips and convex strips which are alternately arranged, the concave strips are concave towards the fixed frame and extend into the terminal rows to be aligned and connected with the conductive spacing pieces, the convex strips are convex towards the direction far away from the fixed frame, and each convex strip surrounds a corresponding pair of differential signal terminals; the butt-joint contact is used for being in butt joint with the first differential signal terminal, the inserting end of the conductive spacing piece is used for being in butt joint with the first shielding piece, and the installation contact and the grounding pin are used for being connected with a circuit substrate.
Compared with the prior art, the high-speed backplane connector in the application has the advantages that the shielding plate is arranged on one side of the fixing frame in each terminal module unit, and meanwhile, the shielding plate is connected with the conductive spacing piece; the shielding plate comprises concave strips and convex strips which are alternately arranged, the concave strips are concave towards the fixed frame and extend into the terminal rows to be aligned and connected with the conductive spacing pieces, the convex strips are convex towards the direction far away from the fixed frame, each convex strip surrounds a corresponding pair of differential signal terminals, the concave strips and the convex strips can shield the upper sides, the lower sides and the outer sides of the pair of differential signal terminals, and the other shielding plate adjacent to the shielding plate can shield one side, close to the other shielding plate, of the pair of differential signal terminals, so that a complete shielding structure is formed around the pair of differential signal terminals, and interference and crosstalk between the adjacent pairs of differential signal terminals are effectively reduced.
In addition, the connector system provided by the application comprises a first connector and a second connector which are matched with each other, wherein the second connector has the same structure as the high-speed backplane connector, and therefore the connector system provided by the application can achieve the same technical effect as the high-speed backplane connector.
Drawings
Fig. 1 is a schematic perspective view of a high-speed backplane connector according to the present application;
FIG. 2 is an exploded view of a high speed backplane connector according to the present application;
fig. 3 is a schematic structural diagram of two adjacent terminal module units in the high-speed backplane connector of the present application;
fig. 4 is a schematic structural diagram of the fixing frame, the differential signal terminals and the spacing pieces of the terminal module unit in the present application, so as to clearly show the connection structure of the differential signal terminals and the spacing pieces with the fixing frame;
fig. 5 is a schematic diagram of an arrangement of pairs of differential signal terminals and conductive spacers in a terminal module unit according to the present application;
fig. 6 is a schematic perspective view of a shielding plate according to the present application;
FIG. 7 is a bottom view of the shield plate of the present application to clearly show the configuration of the ribs and troughs;
FIG. 8 is a schematic view of the shield plate of the present application in another orientation to clearly show the structure of the tabs;
FIG. 9 is a schematic structural view of a connector system of the present application;
fig. 10 is an exploded view of the connector system of the present application, showing primarily the structure of the U-shaped base in the first connector.
The main reference numbers in the drawings accompanying the present specification are as follows:
100-terminal module unit; 200-an insulating housing; 1-a fixed frame; 10-butt joint edge; 11-mounting edges; 13-fixed column; 2-differential signal terminals; 20-pairs of contacts; 21-mounting a contact; 22-a base; 3-a conductive spacer; 30-a plug end; 31-a connection end; 32-a jack; 4-a shielding plate; 40-concave strips; 401-mating segment; 402-a mounting section; 403-middle section; 404-a fixation hole; 41-convex strips; 42-inside of shield; 43-outside of the shield; 44-a leading edge; 45-bottom edge; 46-a ground pin; 47-a tab; 48-shielding the mainboard; 49-shield front plate; 491-a lantern ring; 492-elastic fingers; 300-a base; 301-first differential signal terminals; 302-a first shield; 303-a first circuit substrate; 304-circuit substrate.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
Fig. 1 is a schematic perspective view of a high-speed backplane connector according to the present application; fig. 2 is an exploded view of a high-speed backplane connector according to the present application. Referring to fig. 1 to 2, the present application provides a high-speed backplane connector including a plurality of terminal module units 100 arranged in parallel, and an insulating housing 200 for receiving and fixing the terminal module units 100. While the high-speed backplane connector of fig. 1 and 2 includes eight terminal module units 100, in other embodiments, any number of terminal module units 100 may be provided to accommodate high-speed backplane connectors of different dimensions.
Fig. 3 is a schematic structural diagram of two adjacent terminal module units in the high-speed backplane connector of the present application; fig. 4 is a schematic structural view of the fixing frame, the differential signal terminals and the conductive spacers of the terminal module unit in the present application, so as to clearly show the connection structure of the differential signal terminals and the conductive spacers with the fixing frame; fig. 7 is a bottom view of the shield plate of the present application to clearly show the structure of the male and female strips.
Referring to fig. 3, 4 and 7, each of the terminal module units 100 includes: a sheet-like fixed frame 1, a plurality of pairs of differential signal terminals 2, a plurality of conductive spacers 3, and a shield plate 4. The sheet-shaped fixed frame 1 is provided with a butt edge 10 and a mounting edge 11 which are vertical to each other; a plurality of pairs of differential signal terminals 2 arranged in a terminal row and supported by the fixed frame 1; each pair of the differential signal terminals 2 has a mating contact 20 extending forward and beyond the mating edge 10, a mounting contact 21 extending downward and beyond the mounting edge 11, and a base 22 connecting the mating contact 20 and the mounting contact 21; a plurality of conductive spacers 3 arranged at intervals in the terminal rows; each conductive spacing piece 3 is provided with a plug end 30 which extends forwards and extends out of the butt joint edge 10 and a connecting end 31 which is arranged in the opposite direction of the plug end 30; a shielding plate 4 fixed to one side of the fixing frame 1 and connected to the conductive spacer 3; the shielding plate 4 includes concave strips 40 and convex strips 41 arranged alternately, the concave strips 40 are concave towards the fixing frame 1 and extend into the terminal rows to be aligned and connected with the conductive spacing pieces 3, the convex strips 41 are convex towards the direction far away from the fixing frame 1, and each convex strip 41 surrounds a corresponding pair of the differential signal terminals 2.
It should be noted that: a plurality of conductive spacers 3 are arranged in the terminal array at intervals, and it can be understood that at least one conductive spacer 3 is arranged between two adjacent pairs of differential signal terminals 2, and it can also be understood that at least one conductive spacer 3 is arranged on the upper side and the lower side of each pair of differential signal terminals 2.
In addition, the concave strip 40 is concave towards the fixing frame 1 and extends into the terminal row to contact with the conductive spacing sheet 3, so as to form a ground loop.
Fig. 5 is a schematic diagram of an arrangement of pairs of differential signal terminals and conductive spacers in a terminal module unit according to the present application; FIG. 6 is a schematic structural view of a shielding plate according to the present application; referring to fig. 3, 5 and 6, the shielding plate 4 has a shielding inner side 42 and a shielding outer side 43 which are oppositely disposed, the shielding inner side 42 faces the fixing frame 1, the shielding outer side 43 is away from the fixing frame 1, the shielding inner side 42 of at least one of the concave strips 40 extends into between two adjacent pairs of the differential signal terminals 2 and is aligned and connected with the connecting end 31 of the conductive spacer 3, and the shielding inner side 42 of at least one of the convex strips 41 surrounds the corresponding pair of the differential signal terminals 2, so that the upper side, the lower side and the outer side of the pair of differential signal terminals 2 form a shielding.
Referring to fig. 3 and 6, the shield plate 4 has a front edge 44 and a bottom edge 45 that are perpendicular to each other, and each of the female strips 40 projects downward at the bottom edge 45 with a grounding pin 46, the grounding pin 46 being aligned with the mounting contact 21 of the differential signal terminal 2.
Based on the above embodiment, at least one of the female strips 40 has a mating section 401 extending toward the front edge 44, a mounting section 402 extending perpendicular to the mating section 401 and toward the bottom edge 45, and a middle section 403 connecting the mating section 401 and the mounting section 402, and the grounding pin 46 is disposed on the mounting section 402 and extends vertically downward, wherein the grounding pin 46 is aligned with the mounting contact 21 of the differential signal terminal 2 in the same terminal module unit 100.
As shown in fig. 4 and 6, the fixing frame 1 is provided with fixing posts 13 facing the shielding plate 4, the concave strip 41 of the shielding plate 4 is provided with fixing holes 404 corresponding to the fixing posts 13, and the fixing posts 13 are inserted into the corresponding fixing holes 404. Wherein, the fixing column 13 and the fixing hole 404 are provided in plurality.
The cross-sectional shapes of the fixing post 13 and the fixing hole 404 are circular, square or rectangular, but the present application is not limited thereto, as long as the fixing post 13 can be inserted into the corresponding fixing hole 404.
In some embodiments of the present application, the shielding plate 4 is further provided with a fixing structure, and the fixing structure is located in the extending direction of the concave strip 40; be provided with connection structure on electrically conductive spacer 3, link 31 extends to fixed frame 1's inner chamber, connection structure is close to link 31 sets up, and with fixed knot constructs the connection, in order to connect shield plate 4 with electrically conductive spacer 3.
Based on the above embodiment, the connection structure is exposed on one side surface of the fixed frame 1 close to the shielding plate 4, that is, the connection structure is located on the left side surface of the fixed frame 1, so that the shielding plate 4 is connected with the conductive spacer 3.
As shown in fig. 5 and 8, the fixing structure is a plurality of protruding pieces 47 disposed on the shielding plate 4, the protruding pieces 47 are bent and extended toward the fixing frame 1, the connecting structure is an insertion hole 32 disposed on the conductive spacer 3 and corresponding to the protruding pieces 47, and the protruding pieces 47 are inserted into the insertion hole 32.
Wherein the insertion hole 32 is disposed near the connection end 31 of the conductive spacer 3. The position of the protruding piece 47 and the inserting hole 32 can be interchanged, that is, the hole 32 is arranged on the shielding plate 4, and the protruding piece 47 is arranged on the conductive spacing piece 3. Of course, other connection structures and fixing structures may be provided as long as the connection between the concave strip 40 on the shielding plate 4 and the conductive spacer 3 can be achieved and the effect of forming the ground loop between the concave strip 40 on the shielding plate 4 and the conductive spacer 3 can be achieved.
Referring to fig. 6 and 8, the shield plate 4 has a shield main plate 48 and a shield front plate 49 connected to the shield main plate 48 and near the front end, and a connecting portion is provided on the shield front plate 49 and extends toward the shield inner side 42, and the connecting portion can connect the shield plates 4 in two adjacent terminal module units 100.
The connecting portion is a collar 491, and the collar 491 extends vertically from the upper edge or the lower edge of the shield front plate 49 toward the shield inner side 42.
In order to make the structure between the terminal module units more compact and further reduce the interference and crosstalk between the differential signal terminals 2 in the adjacent terminal module units 100, the positions of the connecting portions on the two adjacent shielding plates 4 are different, that is, when the connecting portion on the shielding front plate 49 of one shielding plate 4 of the two adjacent shielding plates 4 is disposed on the upper edge of the shielding front plate 49, the connecting portion on the shielding front plate 49 of the other shielding plate 4 of the two adjacent shielding plates 4 is disposed on the lower edge of the shielding front plate 49, as shown in fig. 3.
In some embodiments of the present application, the shield front plate 49 is provided with a plurality of elastic fingers 492 protruding toward the shield inner side 42.
In addition, it should be noted that the concave strips 40, the convex strips 41, the grounding pins 46 and the protruding strips 47 are all distributed on the shielding main board 48.
FIG. 9 is a schematic structural view of a connector system of the present application; fig. 10 is a schematic view of the structure of the U-shaped base in the first connector of the connector system of the present application, and referring to fig. 9 and 10, an embodiment of the connector system includes a connection between a first circuit substrate 303 and a circuit substrate 304 positioned perpendicular to each other. Specifically, a first connector is mounted to first circuit substrate 303 and is configured to mate with a second connector mounted to circuit substrate 304.
The first connector comprises a U-shaped base 300, a plurality of pairs of first differential signal terminals 301 fixed on the base 300, and a plurality of first shields 302 fixed on the base 300 and corresponding to the first differential signal terminals 301; the second connector (i.e., the high-speed backplane connector described above, refer to fig. 1 to 8) includes a plurality of terminal module units 100 arranged in parallel, and an insulating housing 200 for receiving and fixing the terminal module units 100, and each of the terminal module units 100 includes: a sheet-like fixed frame 1 having a butting side 10 and a mounting side 11 perpendicular to each other; a plurality of pairs of differential signal terminals 2 arranged in a terminal row and supported by the fixed frame 1; each pair of the differential signal terminals 2 has a mating contact 20 extending forward and beyond the mating edge 10, a mounting contact 21 extending downward and beyond the mounting edge 11, and a base 22 connecting the mating contact 20 and the mounting contact 21; a plurality of conductive spacers 3 arranged at intervals in the terminal rows; each conductive spacing piece 3 is provided with a plug-in end 30 which extends forwards and extends out of the butt joint edge 10 and a connecting end 31 which is integrally formed with the plug-in end 30 and is arranged reversely; a shielding plate 4 fixed to one side of the fixing frame 1 and connected to the conductive spacer 3; the shielding plate 4 comprises concave strips 40 and convex strips 41 which are alternately arranged, the concave strips 40 are concave towards the fixed frame 1 and extend into the terminal rows to be aligned with and connected with the conductive spacing pieces 3, the convex strips 41 are convex towards the direction far away from the fixed frame 1, and each convex strip 41 surrounds a corresponding pair of the differential signal terminals 2; wherein the mating contact 20 is adapted to mate with the first differential signal terminal 301, the mating end 30 of the conductive spacer 3 is adapted to mate with the first shield 302, and the mounting contact 21 and the ground pin 46 are adapted to connect with a circuit substrate 304.
Compared with the prior art, the high-speed backplane connector in the present application is provided with the shielding plate 4 on one side of the fixing frame 1 in each terminal module unit 100, and the shielding plate 4 is connected with the conductive spacer 3; the shielding plate 4 comprises concave strips 40 and convex strips 41 which are alternately arranged, the concave strips 40 are concave towards the fixed frame 1 and extend into the terminal rows to be aligned with and connected with the conductive spacing pieces 3, the convex strips 41 are convex towards the direction far away from the fixed frame 1, and each convex strip 41 surrounds a corresponding pair of the differential signal terminals 2; by providing the concave strips 40 and the convex strips 41, the upper side, the lower side and the outer side of the pair of differential signal terminals 2 can be shielded, and the other shielding plate 4 adjacent to the shielding plate 4 can shield one side of the pair of differential signal terminals 2 close to the other shielding plate, so that a complete shielding structure is formed around the pair of differential signal terminals 2, and the interference and crosstalk between the adjacent pairs of differential signal terminals 2 are effectively reduced.
In addition, the connector system provided by the present application includes a first connector and a second connector that are matched with each other, wherein the second connector has the same structure as the high-speed backplane connector, and thus the connector system provided by the present application can achieve the same technical effect as the high-speed backplane connector, that is, the connector system provided by the present application can effectively reduce interference and crosstalk between adjacent pairs of differential signal terminals.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A high-speed backplane connector comprising a plurality of terminal module units arranged in parallel and an insulating housing for receiving and fixing the terminal module units, wherein each of the terminal module units comprises:
a sheet-like fixed frame having a butt edge and a mounting edge which are perpendicular to each other;
a plurality of pairs of differential signal terminals arranged in a terminal row and supported by the fixed frame; each pair of differential signal terminals having a mating contact extending forwardly and beyond the mating edge, a mounting contact extending downwardly and beyond the mounting edge perpendicular to the mating contact, and a base connecting the mating contact and the mounting contact;
a plurality of conductive spacers arranged at intervals in the terminal rows; each conductive spacing piece is provided with a plug-in end which extends forwards and extends out of the butt joint edge and a connecting end which is integrally formed with the plug-in end and is arranged reversely;
the shielding plate is fixed on one side of the fixed frame and is connected with the conductive spacing piece; the shielding plate comprises concave strips and convex strips which are alternately arranged, the concave strips face the fixed frame and extend into the terminal rows, the terminal rows are aligned and connected with the conductive spacing pieces, the convex strips face away from the fixed frame, the direction of the convex strips is convex, and each convex strip surrounds a corresponding pair of differential signal terminals.
2. The high-speed backplane connector of claim 1, wherein the shielding plate has a shielding inner side and a shielding outer side opposite to each other, the shielding inner side faces the fixed frame, the shielding outer side is away from the fixed frame, the shielding inner side of at least one of the protruding strips extends between two adjacent pairs of the differential signal terminals and is aligned with and connected to the connecting end of the conductive spacer, and the shielding inner side of at least one of the protruding strips surrounds a corresponding pair of the differential signal terminals.
3. The high-speed backplane connector of claim 1, wherein the shield has a front edge and a bottom edge that are perpendicular to each other, each of the female strips projecting downward at the bottom edge as a grounding pin that is aligned with the mounting contacts of the differential signal terminals.
4. The high-speed backplane connector of claim 3, wherein at least one of the female strips has a mating section extending toward the front edge, a mounting section perpendicular to the mating section and extending toward the bottom edge, and an intermediate section connecting the mating section and the mounting section, the grounding pin being disposed on the mounting section and extending vertically downward, wherein the grounding pin is aligned with the mounting contacts of the differential signal terminals in the same terminal module unit.
5. A high-speed backplane connector according to any one of claims 1 to 4,
the shielding plate is provided with a fixing structure, and the fixing structure is positioned in the extending direction of the concave strip;
the conductive spacer is provided with a connecting structure, the connecting end extends to the inner cavity of the fixed frame, and the connecting structure is close to the connecting end and connected with the fixed structure so as to connect the shielding plate with the conductive spacer.
6. The high-speed backplane connector according to claim 5, wherein the fixing structures are a plurality of protruding pieces provided on the shield plate, the protruding pieces being bent and extended toward the fixing frame, and the connection structures are insertion holes provided on the conductive spacer pieces and provided corresponding to the protruding pieces, the protruding pieces being inserted into the insertion holes.
7. The high-speed backplane connector according to claim 5, wherein the fixing structures are a plurality of insertion holes provided on the shield plate, and the connection structures are a plurality of protruding pieces provided on the conductive spacer piece, the protruding pieces being bent and extended toward the shield plate and provided corresponding to the insertion holes, the protruding pieces being inserted into the insertion holes.
8. The high-speed backplane connector according to claim 2, wherein the shield board has a shield main board, and a shield front board connected to the shield main board and near the front end, the shield front board being provided with a connecting portion extending toward the shield inner side, and a plurality of elastic fingers projecting toward the shield inner side, the connecting portion being capable of connecting the shield boards in two adjacent terminal module units.
9. The high-speed backplane connector of claim 8, wherein the connecting portion is a collar extending perpendicularly from an upper edge or a lower edge of the shield front plate toward an inside of the shield.
10. A connector system comprising a first connector and a second connector which mate with each other,
the first connector comprises a U-shaped base, a plurality of pairs of first differential signal terminals fixed on the base, and a plurality of first shielding pieces fixed on the base and corresponding to the first differential signal terminals;
the second connector includes a plurality of terminal module units arranged in parallel, and an insulating housing for receiving and fixing the terminal module units, each of the terminal module units including:
a sheet-like fixed frame having a butt edge and a mounting edge which are perpendicular to each other;
a plurality of pairs of differential signal terminals arranged in a terminal row and supported by the fixed frame; each pair of differential signal terminals having a mating contact extending forwardly and beyond the mating edge, a mounting contact extending downwardly and beyond the mounting edge perpendicular to the mating contact, and a base connecting the mating contact and the mounting contact;
a plurality of conductive spacers arranged at intervals in the terminal rows; each conductive spacing piece is provided with a plug-in end which extends forwards and extends out of the butt joint edge and a connecting end which is arranged in a reverse direction with the plug-in end;
the shielding plate is fixed on one side of the fixed frame and is connected with the conductive spacing piece; the shielding plate comprises concave strips and convex strips which are alternately arranged, the concave strips are concave towards the fixed frame and extend into the terminal rows to be aligned and connected with the conductive spacing pieces, the convex strips are convex towards the direction far away from the fixed frame, and each convex strip surrounds a corresponding pair of differential signal terminals;
the butt-joint contact is used for being in butt joint with the first differential signal terminal, the inserting end of the conductive spacing piece is used for being in butt joint with the first shielding piece, and the installation contact and the grounding pin are used for being connected with a circuit substrate.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620459.1A CN113314895A (en) | 2021-06-03 | 2021-06-03 | High-speed backplane connector and connector system |
| EP22169689.1A EP4099518A1 (en) | 2021-06-03 | 2022-04-25 | Shielding plate, terminal module, high-speed backplane connector, and connector system |
| US17/729,013 US20220393405A1 (en) | 2021-06-03 | 2022-04-26 | Shielding plate, terminal module, high-speed backplane connector, and connector system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110620459.1A CN113314895A (en) | 2021-06-03 | 2021-06-03 | High-speed backplane connector and connector system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113314895A true CN113314895A (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110620459.1A Pending CN113314895A (en) | 2021-06-03 | 2021-06-03 | High-speed backplane connector and connector system |
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| CN (1) | CN113314895A (en) |
Cited By (1)
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| WO2023246534A1 (en) * | 2022-06-24 | 2023-12-28 | 深圳市长盈精密技术股份有限公司 | Backplane connector |
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Application publication date: 20210827 |
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