CN113708157B - Backboard connector and combination thereof - Google Patents
Backboard connector and combination thereof Download PDFInfo
- Publication number
- CN113708157B CN113708157B CN202010438752.1A CN202010438752A CN113708157B CN 113708157 B CN113708157 B CN 113708157B CN 202010438752 A CN202010438752 A CN 202010438752A CN 113708157 B CN113708157 B CN 113708157B
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- Prior art keywords
- signal terminal
- butt joint
- wall surface
- mounting
- conductive
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- 210000001503 joint Anatomy 0.000 claims abstract description 35
- 239000012212 insulator Substances 0.000 claims description 27
- 230000013011 mating Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 210000002105 tongue Anatomy 0.000 description 15
- 239000002184 metal Substances 0.000 description 10
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 208000029154 Narrow face Diseases 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Classifications
-
- 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
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
- H01R12/735—Printed circuits including an angle between each other
- H01R12/737—Printed circuits being substantially perpendicular to each other
-
- 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
-
- 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
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
- H01R13/6586—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules
- H01R13/6587—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules for mounting on PCBs
Abstract
The invention discloses a back board connector, which comprises a plurality of conductive sheets, wherein each conductive sheet comprises a conductive supporting piece, a plurality of signal terminal pairs and a shielding sheet, and each signal terminal comprises a butt joint part, a middle part and a mounting part. The conductive support piece is provided with a first surface, a second surface and a plurality of opposite terminal grooves, each terminal groove penetrates through the butt joint end, the mounting end and the first surface, so that the terminal groove is provided with an upper inner wall surface, a lower inner wall surface and a side inner wall surface, each signal terminal pair is contained in a corresponding terminal groove, the butt joint part is positioned between the upper inner wall surface, the lower inner wall surface and the side inner wall surface of the corresponding terminal groove, the shielding piece is attached to the first surface, the shielding piece extends out of the plurality of elastic arms, and the elastic arms extend into the terminal groove and are positioned on the upper side and/or the lower side of the butt joint part of each signal terminal pair. Compared with the prior art, the conductive support piece is a conductive body, provides three facing shielding effects for the signal terminal pairs, and meets high-frequency performance while simplifying manufacture.
Description
[ field of technology ]
The invention relates to a back board connector and a combination thereof.
[ background Art ]
Chinese patent publication No. CN105612664a discloses a backplane connector in which each signal terminal 70 forming a differential pair includes contact portions 71, 72, and the contact portions 71 forming the differential pair are provided in edge coupling, but the contact portions 71, 72 are spaced apart from each other by a larger distance than the body portions 73, 74. Horizontally aligned contact portions 71 are located in insulated shield 20. To minimize cross-talk, a U-shaped shield 105 may be inserted into the U-shaped channel 29 of the shield wall 26 adjacent the contact 71. The ground terminals 80 are metal plates, and bent out of the roller edge portions, so as to realize shielding between adjacent signal terminal pairs. However, in actual manufacturing, the ground terminal is complicated in structure.
Therefore, it is desirable to design a circuit that satisfies the signal shielding effect, achieves high frequency performance, and satisfies manufacturing and cost considerations.
[ invention ]
The main object of the present invention is to provide a back-plate connector and a combination thereof, which can simplify the manufacturing.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the back board connector comprises at least one conductive sheet, wherein the conductive sheet is provided with a butt joint end and a mounting end, the conductive sheet comprises a conductive supporting piece, a plurality of signal terminal pairs and a shielding piece, each signal terminal pair is formed by two signal terminals and is buried in an insulator, each signal terminal comprises a butt joint part, a mounting part and a middle part for connecting the butt joint part and the mounting part, the butt joint part and the mounting part are exposed out of the insulator, and the middle part is at least partially buried in the insulator; the conductive support piece is provided with a first surface, a second surface and a plurality of terminal grooves which are opposite, each terminal groove penetrates through the butt joint end, the mounting end and the first surface, so that the terminal groove is provided with an upper inner wall surface, a lower inner wall surface and a side inner wall surface connected with the upper inner wall surface and the lower inner wall surface, each signal terminal is contained in a corresponding terminal groove, the butt joint part of the signal terminal pair is positioned between the upper inner wall surface, the lower inner wall surface and the side inner wall surface of the corresponding terminal groove, the shielding piece is attached to the first surface, and the shielding piece extends out of a plurality of elastic arms which extend into the terminal groove and are positioned on the upper side and/or the lower side of the butt joint part of each signal terminal pair.
Compared with the prior art, the conductive support is a conductive body, provides three facing shielding effects for each signal terminal pair, and meets high-frequency performance while simplifying manufacture.
[ description of the drawings ]
Fig. 1 is a perspective view of a back plate connector assembly of the present invention.
Fig. 2 is a partial enlarged view of the circle of fig. 1.
Fig. 3 is a partial enlarged perspective view of the signal terminals and the shielding plate in the first back plate connector and the signal terminals and the U-shaped member of the second back plate connector.
Fig. 4 is an enlarged partial cross-sectional view of the first and second backplane connectors after mating.
Fig. 5 is an enlarged partial cross-sectional view of another angle after mating the first and second backplane connectors.
Fig. 6 is an exploded perspective view of the first backplane connector.
Fig. 7 is another angular perspective view of the housing of fig. 6.
Fig. 8 is a perspective view of the conductive sheet of fig. 6.
Fig. 9 is a perspective view of the conductive support of fig. 8.
Fig. 10 is a perspective view of the terminal module of fig. 8.
Fig. 11 is an exploded perspective view of the terminal module of fig. 10.
Fig. 12 is a perspective view of the masking blade of fig. 8.
Fig. 13 is a partial exploded perspective view of the second backplane connector.
Fig. 14 is a partial enlarged view of the circle of fig. 13.
Fig. 15 is another angled perspective view of the U-shaped member of fig. 13.
Fig. 16 is a partial exploded perspective view of fig. 13.
Fig. 17 is a perspective view of the conductive sheet and the U-shaped member.
Fig. 18 is an exploded perspective view of fig. 17.
Fig. 19 is an exploded perspective view of the conductive support and terminal module of fig. 18.
Fig. 20 is an exploded perspective view of the terminal module of fig. 19.
Fig. 21 is a cross-sectional view of the terminal of fig. 20.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
[ detailed description ] of the invention
Referring to fig. 1, the present invention discloses a back board connector assembly, which includes two back board connectors that are butted with each other, and for convenience of distinction, a first back board connector 100 (or simply referred to as a first connector) and a second back board connector 300 (or simply referred to as a second connector) are defined respectively, the two back board connectors 100, 300 are respectively mounted on circuit boards 701, 702, and the basic structures are similar, each of which includes a base 10/30 and a plurality of conductive sheets 20/40 stacked side by side, each conductive sheet has a butt end and a mounting end, the butt end is inserted into the base for butt-jointing with another back board connector, and the mounting end is mounted on the circuit board, and the butt end and the mounting end are orthogonal to each other, that is, so-called right angle connectors. The two connectors are mounted on the circuit boards and then are butted, the two circuit boards are orthogonal to each other, in the following description, for convenience of description, the direction of butting the two circuit boards is the front, the opposite direction is the rear, the direction close to the circuit boards is the lower, and the opposite direction is the upper.
The front end of the first connector 100 is inserted into the mating cavity 301 formed at the front end of the second connector 300, the upper and lower surfaces of the front end of the first connector are formed with guide ribs 15 extending in the front-rear direction, and the guide ribs 15 are inserted into the guide grooves 35 formed on the inner wall surface of the mating cavity 301 of the second connector, so that the mating of the two connectors is completed. The tongue 34 (shown in fig. 2) of the second connector 300 protruding into the mating cavity 301 is then inserted into the mating hole 14 (shown in fig. 6) of the first connector 100, thereby completing the mechanical and electrical connection. The first and second backplane connectors differ in detail as will be described in more detail below.
Referring to fig. 6-7, the first connector 100 includes a housing 10 and a plurality of conductive wafers 20 arranged in a vertical shoulder-to-shoulder stack. The base 10 includes a front wall 11 and four side walls 12, the four side walls 12 enclose a receiving cavity 13 that is opened backward, the butt-joint holes 14 penetrate the front wall 11 along the front-back direction, the butt-joint holes in a matrix arrangement are vertically arranged in a longitudinal shape, the terminal holes in adjacent columns are vertically arranged in a deviated manner, and the terminal holes 14 in the same row are horizontally aligned. The guide ribs 15 are provided on the outer wall surfaces of the upper and lower side walls. The upper and lower inner wall surfaces of the receiving chamber 13 are provided with a plurality of guide grooves 16, the conductive sheet 20 is provided with guide ribs 26 at upper and lower edges thereof, the guide ribs 26 are inserted into the guide grooves 16, thereby mounting the conductive sheet 20 to the housing 10, wherein both side surfaces of the guide ribs 26 are provided at rear ends thereof with fixing protrusions 261 protruding outward, the fixing protrusions 261 are caught in fixing recesses 161 provided at corresponding positions of the guide grooves, and the fixing recesses 161 simultaneously penetrate the side walls 12 upward or downward.
Referring to fig. 8-12, the conductive sheet 20 has a butt end 201 and a mounting end 202, which include a conductive support 21, a plurality of signal terminal pairs 22 and a shielding plate 24, and are assembled to form a vertical sheet shape. The conductive support 21 is provided with a first surface 211 and a second surface (not numbered) opposite to each other, and a plurality of terminal grooves 213, each terminal groove 213 penetrates the abutting end 201, the mounting end 202 and the first surface 211, such that the terminal groove has an upper inner wall surface 214, a lower inner wall surface 215 and a side inner wall surface 216 connecting the upper inner wall surface and the lower inner wall surface. In this embodiment, the conductive support member 21 is formed by forging/diecast of a metal material, or may be formed by injection molding of a conductive plastic material, or by injection molding of an insulating material and then coating with a conductive material by electroplating or the like. Each of the signal terminal pairs 22 is received in a corresponding one of the terminal grooves 213. Each signal terminal pair 22 is composed of two signal terminals 22a, 22b (typically differential signal terminals) and is buried in an insulator 23, each signal terminal includes a butt joint portion 221, a mounting portion 223, and an intermediate portion 222 connecting the butt joint portion and the mounting portion, the butt joint portion 221 and the mounting portion 223 are exposed outside the insulator 23, and the intermediate portion 222 is buried at least partially in the insulator 23. The abutting portion 221 of each signal terminal pair 22 is located at the upper and lower inner wall surfaces 214, 215 and the vertical inner wall surface 216 of the corresponding terminal groove 213. In this embodiment, the plurality of signal terminals are formed by stamping a vertical metal plate, the middle portion 222 is located in the plane of the metal plate, the distance between the two signal terminals 22a and 22b in each signal terminal pair is smaller than the distance between the adjacent signal terminal pairs, the width of the middle portion 222 is larger than that of the abutting portion 221 and the mounting portion 223, the length of the middle portion 222 is gradually reduced from top to bottom, and the middle portion 222 has a corner 2221, and the width of the corner is reduced. The insulator 23 wraps the intermediate portion 222 by injection molding, so as to form a terminal module, and as can be seen from fig. 11, the insulator 23 mainly wraps the corner 2221, the connection portion between the intermediate portion and the abutting portion, the connection portion between the intermediate portion and the mounting portion, and other portions where the force application is required, or the portion where the signal terminal is fixed is reinforced. The two abutting portions 221 of each signal terminal pair 22 are arranged up and down, each abutting portion is vertical, and has a contact point 2211 protruding away from the side inner wall surface 216. The insulator 23 is provided with a reinforcing portion 231 protruding forward adjacent to the abutting end 201, and the abutting portion 221 passes through the reinforcing portion 231.
The shielding sheet 24 is adhered to the first surface 211. The shielding plate 24 extends out of a plurality of elastic arms 241, and the elastic arms extend into the terminal slots 213 and are located on the upper side and/or the lower side of the abutting portion 211 of each signal terminal pair. In the present embodiment, the shielding plate 24 is provided with an extension portion 242 protruding toward the abutting end, the two elastic arms 241 extend from the upper and lower edges of the extension portion 242 respectively and are adjacent to the upper and lower inner wall surfaces 214 and 215 respectively, and the extension portion 242 is adjacent to the junction between the abutting portion 221 and the middle portion 222, i.e. the extension portion 242 covers the reinforcing portion 231. The two resilient arms 242 are horizontal with oppositely facing protruding contact points 2411 at their free ends. The shielding plate 24 is provided at its abutting end with a plurality of connecting portions 243 bent to one side and then extending downward, one or two mounting legs 244 extending downward from each connecting portion, and extending portions 245 extending vertically downward are reserved between adjacent connecting portions. Referring to fig. 9, the conductive support 20 has a mounting surface 218 at the mounting end that mates with the circuit board, the mounting surface 218 being raised upward, and the mounting surface 232 of the insulator 23 at the mating end 202 being lower than the mounting surface 218 of the conductive support. That is, the conductive support has a rear bottom surface through which the mounting portion of the signal terminal passes and a front bottom surface nearer to the contact end than the rear bottom surface, the front bottom surface protruding downward than the rear bottom surface. Thus, after the conductive sheet 20 is mounted on the circuit board, the mounting surface 218 of the conductive support member is spaced from the circuit board 701 by a distance so that the conductive sheet is filled with air, thereby reducing the coupling between the signal terminals and the shielding plate or the ground member and reducing crosstalk. The conductive support piece forms a U-shaped terminal groove structure, so that the signal terminal pair is surrounded by the shielding structure in the first connector in three faces, and after the signal terminal pair is matched with the U-shaped piece of the second connector, the fourth face is also shielded, and the signal terminal pair is surrounded by the four-face shielding structure, so that a good shielding effect is formed on the signal terminal pair. In more detail, the middle portion 222 is surrounded by a four-sided shielding structure formed by the cooperation of the conductive support and the shielding sheet, and the abutting portion 221 is surrounded by a four-sided shielding structure formed by the cooperation of the conductive support and the U-shaped member.
Referring specifically to fig. 9, the adjacent terminal grooves 213 are spaced apart from each other by a spacing rib 217, the spacing rib 217 includes a front section 2711 corresponding to the abutting portion 221 and a rear section 2172 corresponding to the middle portion 222, wherein the front section 2171 is provided with a recess 2173 at the upper and lower inner wall surfaces of the corresponding terminal groove 213, the elastic arm 241 is located in the recess 2173, the rear section 2172 is provided with an elongated groove 2174 matching the shape of the rear section and dividing the rear section into two parts, and the connecting bar 233 of the insulator located between the adjacent signal terminal pairs is received in the elongated groove 2174. The front end of the concave portion is further provided with a concave groove 2175 for accommodating the contact point 2211.
In an embodiment, the second surface of the conductive support member may also be provided with a terminal groove, the signal terminal is accommodated in the terminal groove, and the other shielding sheet covers the second surface.
The second connector 300 has a similar housing and conductive sheet structure, and for convenience of description, similar structures are designated by the same reference numerals but are differently numbered.
Referring to fig. 13-16, and in conjunction with fig. 2, a second connector 300 includes a housing 30, a plurality of conductive tabs 40 arranged in a vertical shoulder-to-shoulder stack, and a plurality of U-shaped members 50. The base 30 includes an intermediate wall 31 and four side walls 32, the four side walls are surrounded to form a butt joint cavity 301 and a receiving cavity 33, the butt joint cavity 301 is opened forward, and the receiving cavity 33 is opened backward. The left and right inner wall surfaces of the docking chamber 301 are provided with the plurality of guide grooves 35 (see fig. 1), the receiving chamber 33 is provided with a plurality of guide grooves 36 on the upper and lower inner wall surfaces thereof, the conductive sheet 40 is provided with guide ribs 46 on the upper and lower edges thereof, the guide ribs 46 are inserted into the guide grooves 36, and the conductive sheet 40 is mounted to the base 30, wherein the guide ribs 46 are also provided with fixing protrusions for fixing the fixing recesses provided in the guide grooves. The holding cavity is provided with a plurality of fixing grooves 37 on the left and right inner wall surfaces, the metal sheet 60 is stuck on the outer side of the left and right conductive sheets near the butt joint end, the metal sheet is punched with a bump 61 from inside to outside, and the bump 61 is fixed in the fixing groove 37. A plurality of tongues 34 project forwardly from the intermediate wall 31 into the docking chamber 301, each tongue being arranged vertically, the tongues of adjacent rows being offset upwardly and downwardly, the tongues 34 of the same row being aligned in a horizontal direction. Each tongue 34 has two opposite broad faces 341 and two opposite narrow faces 342, and each tongue 34 is provided with two abutment grooves 343 extending forwardly through the tongue, laterally through one broad face 341 of the tongue, and rearwardly. The intermediate wall 31 is further provided with a U-shaped slot 38 extending rearwardly and forwardly and just along the other broad face 341 and two narrow faces 342 of the tongue plate.
The U-shaped member 50 includes a wide wall 51 and narrow walls 52 extending vertically from opposite sides of the wide wall, the narrow walls protrude rearward from the wide wall, the front wide wall and the narrow walls together form a U-shaped portion 53, and the narrow walls located behind the wide walls form a fixing portion 54 having a plurality of fixing bumps 541. The U-shaped piece 50 is inserted into and fixed in the U-shaped groove 38, and the fixing part 54 is exposed in the accommodating cavity 33. The U-shaped portion 53 just surrounds one broad surface 341 and two narrow surfaces 342 of the tongue 34 when seen from the front, the broad surface where the signal terminal 20 is located is free of U-shaped pieces, and the contact point 2211 of the signal terminal protrudes from the broad surface 341. As can be seen from fig. 2 and 14, the front end of the U-shaped portion protrudes forward beyond the protruding portion 531, and the front end of the U-shaped portion is retreated a distance from the front end of the tongue plate, so that the protruding portion 531 helps to enhance the holding force between the front end of the U-shaped portion and the tongue plate. The U-shaped portion is provided with ribs 532 on its broad face, enhancing the holding force of the U-shaped portion and the seat body, and also increasing the strength of the U-shaped member.
Fig. 17 shows the positional relationship between the conductive sheet 40 and the U-shaped member 50, the U-shaped member 50 is first mounted on the base 30, the front ends of the plurality of left and right stacked conductive sheets 40 are then mounted in the receiving cavity 33, the abutting portions 421 of the signal terminals of the conductive sheets protrude forward beyond the abutting ends, pass forward through the abutting grooves 343 and are arranged on the broad faces 341 of the tongue plate 34, the fixing portions 54 of the U-shaped member interfere with and fix the shallow concave portions 415 of the conductive sheet 40 disposed on the two sides of the abutting ends thereof, the U-shaped member is made of a metal plate, and the conductive sheet is also conductive, and the two are electrically connected.
Referring to fig. 18-21, the conductive sheet 40 includes a conductive supporting member 41, a plurality of signal terminal pairs 42 and a shielding plate 44, which are assembled to form a vertical sheet. The conductive support 41 has a first surface 411 and a second surface (not numbered) opposite to each other, and a plurality of terminal slots 413, wherein each terminal slot 413 penetrates the mating end, the mounting end and the first surface 411. The spacer rib forming the terminal groove 413 has a widened portion 414 adjacent to the abutting end, the widened portion being relatively wide with respect to the other portion of the spacer rib, and both right and left vertical surfaces of the widened portion are provided with the above-described shallow recesses 415. Each of the signal terminal pairs 42 is received in a corresponding one of the terminal grooves 413. Each signal terminal pair 42 is composed of two differential signal terminals and is buried in an insulator 43, each signal terminal includes a butt joint portion 421, a mounting portion 423, and an intermediate portion 422 connecting the butt joint portion and the mounting portion, the butt joint portion 421 and the mounting portion 423 are exposed outside the insulator 43, and the intermediate portion 422 is at least partially buried in the insulator 43. The signal terminals are formed by stamping a vertical metal plate, the middle part 422 is positioned in the plane of the metal plate where the metal plate is positioned, the distance between two signal terminals in each signal terminal pair is smaller than the distance between adjacent signal terminal pairs, the width of the middle part is larger than that of the abutting part and the mounting part, and the length of the middle part is gradually reduced from top to bottom and has a corner angle. The insulator 43 wraps the intermediate portion by injection molding, and as can be seen from fig. 20, the insulator 43 mainly wraps the corner, the connection portion between the intermediate portion and the abutting portion, the connection portion between the intermediate portion and the mounting portion, and the like, where the force application portion is required, or the portion where the fixed signal terminal is reinforced. In this embodiment, all the terminals are integrally molded from an insulating material to form an insulator, and all the terminals are integrally connected to the insulator to form a terminal module, and different portions of the insulator are independent of each other, and the width of the intermediate portion of all the signal terminals is larger than the width of the abutting portion and the mounting portion, but the width of the intermediate portion is substantially the same. The two abutting portions of each signal terminal pair 42 are bent so as to be arranged in a left-right arrangement. Specifically, the direction change is completed between the abutting portion and the middle portion by one transition portion 424, the transition portion 424 of the signal terminal located above includes a horizontal portion 425 located at the rear section of the abutting portion, the front end of the middle portion narrows to form a narrowing portion 4221, the inner edge of the rear section of the horizontal portion is connected with the upper edge of the narrowing portion of the front end of the middle portion by one arc portion 426, and the horizontal portion 425 includes three sections including an upper horizontal portion 4253, an inclined portion 4252 and a lower horizontal portion 4251. Similarly, the transition portion 424 of the signal terminal located below is located at the other side of the middle portion, and the horizontal portion rises from bottom to top layer by layer, so that the abutting portions of the two signal terminals are located at the same horizontal height. The front free end of the abutment 421 is provided with an upwardly extending contact point 4211. As can be seen from the figure, the height of the abutting portion 421 is also raised by an inclined portion 427 between the abutting portion and the horizontal portion. Two horizontal portions 425 are located on either side of the metal plate surface. The insulator has a plurality of reinforcing portions 431, the transition portions 424 are fixed in the reinforcing portions, and the abutting portions 421 protrude from the reinforcing portions.
The mating process of the first and second connectors 100, 300 will be described below. Because of the problem of the arrangement of the circuit board, the second connector 300 needs to be reversely rotated by 90 degrees, after the two connectors are mated, the mating portions 221 and 421 of each signal terminal pair are elastically mated with each other, the arc-shaped protruding contact points 2211 and 4211 respectively contact the horizontal sections located at the rear sections of the contact points, and the elastic arms 241 elastically contact the outer surfaces of the narrow walls 52 of the U-shaped member. As can be seen from fig. 5, the extension 242 projects forward from the reinforcement 231 of the insulator 23, so that the extension 242 can abut against the front end of the tongue plate.
The foregoing is merely one embodiment, not all or a mere embodiment, and any equivalent variations on the technical solution of the present invention by those skilled in the art through reading the specification of the present invention are covered by the claims of the present invention.
Claims (10)
1. The back board connector comprises at least one conductive sheet, wherein the conductive sheet is provided with a butt joint end and a mounting end, the conductive sheet comprises a conductive supporting piece, a plurality of signal terminal pairs and a shielding piece, each signal terminal pair is formed by two signal terminals and is buried in an insulator, each signal terminal comprises a butt joint part, a mounting part and a middle part for connecting the butt joint part and the mounting part, the butt joint part and the mounting part are exposed out of the insulator, and the middle part is at least partially buried in the insulator; the method is characterized in that: the conductive support piece is provided with a first surface, a second surface and a plurality of terminal grooves which are positioned at the left side and the right side and are opposite to each other, each terminal groove penetrates through the butt joint end, the mounting end and the first surface, so that the terminal groove is provided with an upper inner wall surface, a lower inner wall surface and a side inner wall surface connected with the upper inner wall surface and the lower inner wall surface, each signal terminal pair is accommodated in a corresponding terminal groove, the butt joint part of the signal terminal pair is positioned between the upper inner wall surface, the lower inner wall surface and the side inner wall surface of the corresponding terminal groove, the shielding piece is attached to the first surface, the shielding piece extends out of a plurality of elastic arms, and the elastic arms extend into the terminal groove and are positioned at the upper side and the lower side of the butt joint part of each signal terminal pair and are respectively adjacent to the upper inner wall surface and the lower inner wall surface.
2. The backplane connector of claim 1, wherein: the two butting parts of each signal terminal pair are arranged up and down.
3. The backplane connector of claim 2, wherein: each butt joint part is vertical, and has a contact point protruding away from the side inner wall surface.
4. The backplane connector of claim 2, wherein: the shielding piece is provided with an extension part protruding towards the butt joint end, the two elastic arms extend out from the upper edge and the lower edge of the extension part respectively, and the extension part is close to the joint part and the joint part of the middle part.
5. The backplane connector of claim 4, wherein: the two said elastic arms are horizontal and are provided with contact points protruding face to face at their free ends.
6. The backplane connector of claim 1, wherein: the conductive support member has a rear bottom surface through which the mounting portion of the signal terminal passes and a front bottom surface closer to the contact end than the rear bottom surface, and the front bottom surface protrudes downward than the rear bottom surface.
7. The backplane connector of claim 1, wherein: the adjacent terminal grooves are separated by a spacing rib, the spacing rib comprises a front section part corresponding to the butt joint part and a rear section part corresponding to the middle part, the front section part is provided with a concave part at the upper inner wall surface and the lower inner wall surface of the corresponding terminal groove, and the elastic arm is positioned in the concave part.
8. The back board connector assembly comprises a first back board connector and a second back board connector which are butted with each other, wherein the first back board connector and the second back board connector comprise a base body and at least one conductive sheet for mounting the base body, the conductive sheet is provided with a butting end and a mounting end, the conductive sheet comprises a conductive supporting piece, a plurality of signal terminal pairs and a shielding sheet, each signal terminal pair is composed of two signal terminals and is buried in an insulator, each signal terminal comprises a butting part, a mounting part and a middle part for connecting the butting part and the mounting part, the butting part and the mounting part are exposed outside the insulator, and the middle part is at least partially buried in the insulator; the method is characterized in that: the conductive support piece is provided with a first surface, a second surface and a plurality of terminal grooves which are opposite to each other, each terminal groove penetrates through the butt joint end, the mounting end and the first surface, and each signal terminal is accommodated in a corresponding terminal groove; in the first back board connector, the butting part of the signal terminal pair is provided with three facing shields by the inner wall surface of the terminal groove, and the shielding sheet is attached to the first surface and provides four facing shields for the middle part of the signal terminal together with the conductive supporting piece; the second backboard connector further comprises a U-shaped piece and a plurality of tongue plates extending from the base body, the butt joint part of each signal terminal is arranged on a corresponding tongue plate, and the U-shaped piece is fixed on the tongue plate and surrounds the butt joint part; after the first and second back board connectors are mated, the U-shaped piece provides a fourth facing shielding for the mating portion of the first back board connector.
9. The backplane connector assembly of claim 8, wherein: the butt joint part of each signal terminal pair of the second backboard connector is exposed on one surface of the tongue plate, and the U-shaped piece is attached to the other three surfaces of the tongue plate, which are not provided with the butt joint parts.
10. The backplane connector assembly of claim 9, wherein: the U-shaped piece comprises a wide wall and two narrow walls, wherein protruding parts are arranged at the front ends of the wide wall and the narrow walls, and the protruding parts are embedded in the tongue plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438752.1A CN113708157B (en) | 2020-05-22 | 2020-05-22 | Backboard connector and combination thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438752.1A CN113708157B (en) | 2020-05-22 | 2020-05-22 | Backboard connector and combination thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113708157A CN113708157A (en) | 2021-11-26 |
| CN113708157B true CN113708157B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010438752.1A Active CN113708157B (en) | 2020-05-22 | 2020-05-22 | Backboard connector and combination thereof |
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| CN (1) | CN113708157B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296546A (en) * | 2012-02-22 | 2013-09-11 | 富士康(昆山)电脑接插件有限公司 | Electric coupler assembly |
| CN103915726A (en) * | 2013-01-09 | 2014-07-09 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN208173909U (en) * | 2018-04-10 | 2018-11-30 | 东莞联基电业有限公司 | The HDMI connector for having outstanding EMI shield effectiveness |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080119086A1 (en) * | 2006-11-20 | 2008-05-22 | Chou Hsuan Tsai | Terminal structure of electrical connector |
-
2020
- 2020-05-22 CN CN202010438752.1A patent/CN113708157B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296546A (en) * | 2012-02-22 | 2013-09-11 | 富士康(昆山)电脑接插件有限公司 | Electric coupler assembly |
| CN103915726A (en) * | 2013-01-09 | 2014-07-09 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN208173909U (en) * | 2018-04-10 | 2018-11-30 | 东莞联基电业有限公司 | The HDMI connector for having outstanding EMI shield effectiveness |
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| Publication number | Publication date |
|---|---|
| CN113708157A (en) | 2021-11-26 |
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