Backplane connector

Abstract

The present application relates to a backplane connector, comprising an insulating fixture, a plurality of terminal modules installed on the insulating fixture, a metal support fixed with the terminal modules and an insulating support, each of the terminal modules comprising an insulating body, a terminal set held in the insulating body and a metal shielding plate installed on the insulating body, each of the terminal set comprising a plurality of conductive terminals, each of the conductive terminals comprising a buried part held in the insulating body, a mating part extending forward from the front end of the buried part and exposed to the insulating body and a fixing leg extending downward from the buried part and exposed to the insulating body, the metal shielding plate being a metal part formed by stamping, the metal shielding plate comprising a partition plate part at the front end, a fixing plate at the rear end and a connecting plate connecting between the partition plate part and the fixing plate, the partition plate part and the mating part of the conductive terminal in each of the terminal modules are arranged in transverse overlap, thereby having the effects of simple structure, easy manufacturing and cost reduction.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical connectors, in particular to a backplane connector. BACKGROUND

[0002] In the prior art, backplane connectors usually need to transmit high-frequency signals, so the shielding between signal terminals transmitting different signals is particularly important. For example, the utility model patent with the Chinese publication number CN204011823U, the backplane connector usually contains a plurality of connecting pieces, each of which has a plurality of groups of signal differential pairs. In order to shield the signals in the adjacent two connecting pieces, a metal shielding piece is usually arranged in the connecting piece. However, in order to make the metal shielding pieces and the ground terminals conductive, the prior art uses a conductive plastic component to achieve the purpose, which weakens the manufacturing difficulty caused by high-frequency settings. However, the metal shielding piece in the prior art cannot clamp the grounding mating terminals of the mating connector together, which lacks the requirement of common grounding. In addition, the additional conductive plastic component not only increases the steps in the manufacturing process, but also increases the manufacturing cost, so there is an urgent need for a new backplane connector that can meet the product design requirements without adding a conductive plastic component as in the prior art. SUMMARY

[0003] Based on this, the present application provides a new backplane connector, which is not only simple in structure, but also has the advantage of stable common grounding.

[0004] To solve the above problems, the present application provides a new backplane connector, which comprises an insulating fixing member, a plurality of terminal modules mounted on the insulating fixing member, a metal support for fixing a plurality of terminal modules and an insulating support member, each terminal module comprising an insulating body, a terminal group held in the insulating body and a metal shielding plate mounted on the insulating body, each terminal group comprising a plurality of conductive terminals, each conductive terminal comprising a buried part held in the insulating body, a mating part extending forward from the front end of the buried part and exposed to the insulating body, and a fixing foot extending downward from the buried part and exposed to the insulating body, the metal shielding plate being a metal component formed by stamping, the metal shielding plate comprising a partition plate part at the front end, a fixing plate at the rear end and a connecting plate connecting between the partition plate part and the fixing plate, the partition plate part being arranged in the transverse direction overlapping with the mating part of the conductive terminal in each terminal module.

[0005] Further, the plurality of conductive terminals in each terminal module of the backplane connector of the present application comprise a plurality of signal terminals and a plurality of ground terminals, and the metal shielding plate is electrically connected to each ground terminal.

[0006] Further, the partition plate of each terminal module of the backplane connector is provided with a plurality of windows, and the plurality of windows are arranged in the transverse direction and overlap the corresponding terminal.

[0007] Further, the conductive terminals in each terminal module of the backplane connector are arranged in the transverse direction in a continuous arrangement mode of two signal terminals and one ground terminal, and at least one window corresponds to each signal terminal.

[0008] Further, the partition plate of each terminal module of the backplane connector is provided with a plurality of windows, and the plurality of windows are arranged in the transverse direction and overlap the corresponding terminal.

[0009] Further, the front end of the insulating body of each terminal module of the backplane connector is provided with a plurality of protrusions, and the connecting plate of the metal shielding plate is provided with a plurality of mounting holes corresponding to the plurality of protrusions.

[0010] Further, the front end of the insulating body of each terminal module of the backplane connector is provided with a plurality of protrusions, and the connecting plate of the metal shielding plate is provided with a plurality of mounting holes corresponding to the plurality of protrusions.

[0011] Further, the front end of the insulating body of each terminal module of the backplane connector is provided with a plurality of protrusions, and the connecting plate of the metal shielding plate is provided with a plurality of mounting holes corresponding to the plurality of protrusions.

[0012] Further, the front end of the insulating body of each terminal module of the backplane connector is provided with a plurality of protrusions, and the connecting plate of the metal shielding plate is provided with a plurality of mounting holes corresponding to the plurality of protrusions.

[0013] Further, the front end of the insulating body of each terminal module of the backplane connector is provided with a plurality of protrusions, and the connecting plate of the metal shielding plate is provided with a plurality of mounting holes corresponding to the plurality of protrusions.

[0014] Further, the front end of the insulating body of each terminal module of the backplane connector is provided with a plurality of protrusions, and the connecting plate of the metal shielding plate is provided with a plurality of mounting holes corresponding to the plurality of protrusions.

[0015] Further, the plurality of terminal modules of the backplane connector of the present application comprises a plurality of first terminal modules and a plurality of second terminal modules, the first terminal modules and the second terminal modules are arranged in transverse direction.

[0016] Further, the backplane connector of the present application comprises metal supports and insulating supports for fixing the terminal modules, the fixing feet of the conductive terminals pass through the insulating supports downwardly.

[0017] Compared with the prior art, the present application has the following beneficial effects: since the metal shielding plate is formed as an integral part by stamping, the overall structure is simpler to manufacture and has lower cost; since the terminal groups in the terminal modules are blocked by the metal shielding plates on both sides in transverse direction, the signal transmission performance is better; since the metal shielding plate is provided with contact springs which together with the grounding terminals hold the grounding terminals of the mating connector, the grounding effect is more stable; since the metal shielding plate is provided with clamping pieces arranged in up-down direction at the connecting plate of the metal shielding plate and clamped with the corresponding grounding terminals, the signal transmission performance is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective assembled view of the backplane connector of the present application;

[0019] Figure 2 is a perspective assembled view of the backplane connector of the present application from another direction;

[0020] Figure 3 is a partial perspective exploded view of the backplane connector of the present application;

[0021] Figure 4 is a partial perspective exploded view of the backplane connector of the present application from another direction; Figure 3

[0022] Figure 5 is a perspective view of the insulating fixing member of the backplane connector of the present application;

[0023] Figure 6 is a perspective assembled view of the first terminal module of the backplane connector of the present application;

[0024] Figure 7 is a perspective assembled view of the first terminal module of the backplane connector of the present application from another direction;

[0025] Figure 8 is a perspective assembled view of the first terminal module of the backplane connector of the present application from left to right;

[0026] Figure 9 ​Fig. 6 is a perspective assembly view of the second terminal module of the backplane connector according to the present application;

[0027] Figure 10 Fig. 7 is a perspective view of the first terminal module of the backplane connector according to the present application, viewed from the right to the left;

[0028] Figure 11 Fig. 8 is a perspective assembly view of the second terminal module of the backplane connector according to the present application, viewed from another direction;

[0029] Figure 12 Fig. 9 is a perspective assembly view of the second terminal module of the backplane connector according to the present application, viewed from another direction;

[0030] Figure 13 Fig. 10 is a perspective exploded view of the second terminal module of the backplane connector according to the present application;

[0031] Figure 14 Fig. 11 is a perspective view of the first terminal module of the backplane connector according to the present application, viewed from the left to the right;

[0032] Figure 15 Fig. 12 is a partial enlarged view of the mating portion of the backplane connector according to the present application;

[0033] Figure 16 Fig. 13 is a perspective view of a terminal group of another embodiment of the backplane connector according to the present application;

[0034] Figure 17 Fig. 14 is a partial enlarged view of the terminal group A of another embodiment of the backplane connector according to the present application;

[0035] Figure 18 Fig. 15 is a partial enlarged view of the terminal group of another embodiment of the backplane connector according to the present application, viewed from the right to the left.

[0036] The meanings of the respective reference numerals in the drawings are as follows:

[0037] Backplane connector-100, insulating fixing member-1, main body-11, mating end surface-11a, mounting end surface-11b, terminal groove-12, first terminal groove 12a, second terminal groove 12b, partition-13, first mounting space-14a, second mounting space-14b, frame-15, gap-151, wall-16, mounting groove-17, first mounting groove 17a, second mounting groove 17b, clamping hole-18, fool-proof part-19, first terminal module-21, first insulating body-3, first surface-3a, second surface-3b, groove-31, through hole-32, front end-33, protruding column-331, first mounting part-34a, clamping part-34a1, first plate body-35, second mounting part-34b, fixing groove-34b1, third mounting part-34c, fixing protruding block-36, terminal exposure part-37, first terminal group-4, conductive terminal-40, signal terminal-41, ground terminal-42, mating part-43, cantilever-431, contact part-432, embedded part-44, first segment-44a, second segment-44b, third segment-44c, clamping groove-45, fixing foot-46, first metal shielding plate-5, partition-51, first window-52, contact spring-53, connecting plate-54, mounting hole-55, fixing plate-56, clamping piece-57, second terminal module-22, second insulating body-6, first surface-6a, second surface-6b, groove-61, through hole-62, front end-63, protruding column-631, first mounting part-64a, clamping part-64a1, second plate body-65, second mounting part-64b, fixing groove-64b1, third mounting part-64c, fixing protruding block-66, terminal exposure part-67, second terminal group-7, conductive terminal-70, signal terminal-71, ground terminal-72, mating part-73, cantilever-731, contact part-732, embedded part-74, first segment-74a, second segment-74b, third segment-74c, clamping groove-75, fixing foot-76, second metal shielding plate-8, partition-81, second window-82, contact spring-83, connecting plate-84, mounting hole-85, fixing plate-86, clamping piece-87, metal bracket-9, upper plate-92, clamping part 921, rear plate-93, clamping groove-931, insulating support-95, terminal hole-96. DETAILED DESCRIPTION

[0038] For the purpose of promoting the understanding of the present application, the present application will be described in further detail below with reference to the attached drawings. In the drawings, preferred embodiments of the present application are shown. However, the present application can be realized in many different forms and should not be limited to the embodiments described herein. On the contrary, it is intended to cover all the possible forms as long as they are within the scope of the present application. The present application will be described below with reference to the attached drawings.

[0039] In order to more accurately describe the positional relationship of the various components of the present application, the present application is defined with respect to a reference point, which is the front end of the insulation fixing member 1 in the backplane connector 100. This defines the assembly direction between the insulation fixing member 1 and the terminal module as the front-rear direction, as well as the lateral direction perpendicular to the front-rear direction and the vertical direction (up-down direction) perpendicular to the front-rear direction and the lateral direction. Figure 1

[0040] It should be noted that when an element is referred to as being "fixed to" or "mounted to" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0042] Please refer to Figures 1 to 18 The present application provides a backplane connector 100, which is connected to a mating connector (not shown). The backplane connector 100 is mounted to a first circuit board (not shown), and the mating connector is mounted to a second circuit board (not shown). The first circuit board is perpendicular to the second circuit board. The backplane connector 100 is inserted into the mating connector in a perpendicular manner.

[0043] Please refer to Figures 1 to 18 The backplane connector 100 includes an insulation fixing member 1, a plurality of first terminal modules 21 and a plurality of second terminal modules 22 mounted to the insulation fixing member 1, a metal bracket 9 for fixing the plurality of first terminal modules 21 and the plurality of second terminal modules 22, and an insulation support member 95. The plurality of first terminal modules 21 and the plurality of second terminal modules 22 are arranged at intervals from each other and mounted to the insulation fixing member 1.

[0044] Please refer to Figures 1 to 5 The insulation fixing member 1 includes a main body portion 11 and two wall portions 16 extending from the main body portion 11. The main body portion 11 includes a mating end surface 11a corresponding to the mating connector on the outside with respect to the backplane connector 100, and a mounting end surface 11b opposite to the mating end surface 11a and corresponding to each of the first terminal modules 21 and the second terminal modules. The two wall portions 16 are formed by extending from the mounting end surface 11b toward a direction away from the mating end surface 11a.

[0045] Please refer to Figure 5 ​As shown, the main body 11 includes a plurality of terminal grooves 12 arranged in front and back directions from the docking end face 11a to the mounting end face 11b. The plurality of terminal grooves 12 are arranged in a row in the up-down direction and in multiple rows in the horizontal direction. The mounting end face 11b extends rearward from the docking end face 11a and is formed with a plurality of partitions 13. Each of the partitions 13 extends in the up-down direction, and the plurality of partitions 13 are respectively located between two rows of terminal grooves 12 in the horizontal direction. A plurality of mounting spaces are formed between the plurality of partitions 13 and the mounting end face 11b. The plurality of mounting spaces 14 include a first mounting space 14a for mounting a first terminal module 21 and a second mounting space 14b for mounting a second terminal module 22. The plurality of terminal grooves 12 arranged in a row in the up-down direction include at least a combination of one first terminal groove 12a and two second terminal grooves 12b. The first terminal groove 12a is used for a ground terminal to pass through, and the second terminal groove 12b is used for a signal terminal to pass through. Two second terminal grooves 12 are further provided with a frame 15 surrounding each second terminal groove 12, and the frame 15 is located in the mounting space 14 and forms a gap 151 between the inner surface of the mounting space 14.

[0046] The two wall portions 16 are respectively formed at the upper and lower ends of the mounting end face 11b of the main body 11. The inner side of each wall portion 16 is formed with a plurality of mounting grooves 17 corresponding to the first mounting space 14a and the second mounting space 14b, respectively, a clamping hole 18 extending through the wall portion 16 and exposed in the mounting groove 17, and a fool-proof portion 19 located in the mounting groove 17.

[0047] Please refer to Figures 6 to 16 As shown, the first terminal module 21 and the second terminal module 22 have similar structures. The first terminal module 21 includes a first insulating body 3, a first terminal group 4 held in the first insulating body 3, and a first metal shielding plate 5 mounted to the first insulating body 3. The second terminal module 22 includes a second insulating body 6, a second terminal group 7 held in the second insulating body 6, and a second metal shielding plate 8 mounted to the second insulating body 6.

[0048] Please refer to Figures 6 to 10As shown, the first insulating body 3 of the first terminal module 21 is generally frame-shaped. The first insulating body 3 defines a first surface 3a and a second surface 3b corresponding to the first surface 3a in the transverse direction. The first insulating body 3 includes a first plate portion 35. The first insulating body 3 includes a first mounting portion 34a located at the top and a second mounting portion 34b located behind the first mounting portion 34a. The first mounting portion 34a corresponds to and cooperates with the mounting groove 17, and the first mounting portion 34a is provided with a retaining portion 34a1 corresponding to and cooperating with the retaining hole 18. The second mounting portion 34b is provided with fixing grooves 34b1 formed by inward recesses on both sides in the transverse direction. The first insulating body 3 also includes a front end portion 33 located at the front end, the length of the front end portion 33 in the vertical direction being greater than the length of the first plate portion 35 in the vertical direction. The first mounting portion 34a is located at the top of the front end portion 33. The bottom of the first mounting portion 34a has another retaining portion 34a1 that corresponds to and engages with the retaining hole 18 and is vertically aligned with the retaining portion 34a1 of the first mounting portion 34a. The first insulating body 3 also includes a third mounting portion 34c located at the rear end. The third mounting portion 34c has a rearwardly extending fixing protrusion 36. The second mounting portion 34b is located at the top of the first plate portion 35, and the third mounting portion 34c is located at the rear end of the first plate portion 35. The first plate portion 35 also includes a terminal protrusion 37 located at the bottom.

[0049] Please refer to Figure 9 and Figure 10 As shown, the first terminal group 4 of the first terminal module 21 includes a plurality of conductive terminals 40 fixed within the first insulating body 3. Each conductive terminal 40 includes an embedded portion 44 fixed within the first insulating body 3, a mating portion 43 extending forward from the front end of the embedded portion 44 and protruding from the front end portion 33 of the first insulating body 3, and a fixing foot 46 extending downward from the embedded portion 44 and protruding from the terminal exposure portion 37 of the first insulating body 3. The embedded portion 44 includes a first segment 44a extending in a front-rear direction, a second segment 44b extending in a vertical direction, and a third segment 44c connecting the first segment 44a and the second segment 44b. The mating portion 43 is connected to the front end of the first segment 44a, and the fixing foot 46 is connected to the lower end of the second segment 44b. Please refer to... Figure 10As shown, the plurality of conductive terminals 40 in the first terminal group 4 are arranged in the up-down direction when viewed in the lateral direction, and the extension lengths of the first section 44a, the second section 44b and the third section 44c of the embedding portion 44 of the upper conductive terminal 40 of the two conductive terminals 40 are greater than the extension lengths of the first section 44a, the second section 44b and the third section 44c of the embedding portion 44 of the lower conductive terminal 40. The plurality of conductive terminals 40 include a plurality of signal terminals 41 and a plurality of ground terminals 42. Please refer to Figure 10 As shown, the first terminal group 4 is arranged in a continuous arrangement of two signal terminals 41 and one ground terminal 42 when viewed in the lateral direction.

[0050] Please refer to Figures 6 to 9 As shown, the first metal shielding plate 5 of the first terminal module 21 is a metal plate member formed by stamping. The first metal shielding plate 5 is electrically connected to each ground terminal 42 in the first terminal group 4, each ground terminal 42 of the mating connector and the first circuit board. The first metal shielding plate 5 is fixed to the first surface 3a of the first insulating body 3. The first metal shielding plate 5 includes a partition plate 51 at the front end, a fixed plate 56 at the rear end and a connecting plate 54 connecting the partition plate 51 and the fixed plate 56. Please refer to Figure 8 As shown, the partition plate 51 is arranged in the lateral direction overlapping the mating portion 43 of the first terminal group 4. The connecting plate 54 is arranged in the lateral direction overlapping the front end portion 33. The fixed plate 56 is arranged in the lateral direction overlapping the first plate body portion 35.

[0051] The partition plate 51 is provided with a plurality of first windows 52, and the plurality of first windows 52 are arranged in the lateral direction overlapping the mating portion 43 of the signal terminal 41 to improve the performance of signal transmission integrity. The plurality of first windows 52 include at least three arranged in the front-rear direction and arranged in two rows in the up-down direction corresponding to the mating portion 43 of the adjacent two signal terminals 41, and the partition plate 51 has a plurality of first windows 52 arranged in the above-mentioned two-row arrangement corresponding to a plurality of adjacent two signal terminals 41. The partition plate 51 further includes a contact spring 53 overlapping the mating portion 43 of the ground terminal 42 in the lateral direction. The contact spring 53 is formed by tearing and forming, and the contact spring 53 extends towards the mating portion 43 of the ground terminal 42 corresponding thereto. The contact spring 53 and the mating portion 43 of the ground terminal 42 can clamp the mating terminal for grounding of the mating connector in the lateral direction, so as to realize the common grounding effect between each ground terminal 42 and the first metal shielding plate 5 and each mating terminal for grounding of the mating connector.

[0052] Please refer to Figure 8 As shown in the figure, the first surface 3a of the front end 33 is provided with a plurality of convex columns 331, and the connecting plate 54 is provided with a plurality of mounting holes 55 corresponding to the plurality of convex columns 331. The convex columns 331 and the mounting holes 55 are inserted and matched to fix the first insulating body 3 and the first metal shielding plate 5.

[0053] Please refer to Figures 6 to 10 As shown in the figure, the adjacent two signal terminals 41 in the first terminal group 4 form a pair of differential signal terminal 41 groups, and the first terminal group 4 includes a plurality of the pair of differential signal terminal 41 groups. The second surface of the first insulating body 3 is recessed inward in the transverse direction to form a plurality of grooves 31. The plurality of grooves 31 respectively partially overlap the embedded portions 44 of the signal terminals 41 in the transverse direction. The second surface of the first insulating body 3 is also recessed inward in the transverse direction to form a plurality of through holes 32. The embedded portions 44 of the ground terminals 42 are partially exposed at the second surface 3b at the through holes 32. Part of the plurality of through holes 32 correspond to the plurality of grooves 31 to improve the integrity of high-frequency signals. The embedded portions 44 of the ground terminals 42 exposed at the through holes 32 are provided with clamping grooves 45. The first metal shielding plate 5 is provided with clamping pieces 57 corresponding to the clamping grooves 45, so that the ground terminals 42 in the first terminal group 4 and the first metal shielding plate 5 achieve the effect of common grounding. Each clamping piece 57 corresponds to the extension direction of the embedded portion 44 of each ground terminal 42 in the first terminal group 4, and the distance between adjacent two clamping pieces 57 is less than or equal to 3.6 millimeters.

[0054] Please refer to Figures 6 to 8 As shown in the figure, at the position where the front end 33 of the first insulating body 3 in the transverse direction and the connecting plate 54 of the first metal shielding plate 5 overlap, the same number of clamping pieces 57 and clamping grooves 45 as the number of ground terminals 42 in the first terminal group 4 are arranged in the up-down direction. In this way, the signal can be optimized on the side of the first terminal module 21 close to the butt joint portion 43.

[0055] Please refer to Figures 11 to 14As shown, the second insulating body 6 of the second terminal module 22 is also generally frame-shaped. The second insulating body 6 defines a first surface 6a and a second surface 6b corresponding to the first surface 6a in the transverse direction. The second insulating body 6 includes a second plate portion 65. The second insulating body 6 includes a first mounting portion 64a located at the top and a second mounting portion 64b located behind the first mounting portion 64a. The first mounting portion 64a corresponds to and cooperates with the mounting groove 17, and the first mounting portion 64a is provided with a retaining portion 64a1 that corresponds to and cooperates with the retaining hole 18. The second mounting portion 64b is provided with fixing grooves 64b1 formed by inward recesses on both sides in the transverse direction. The second insulating body 6 also includes a front end portion 63 located at the front end, the length of the front end portion 63 in the vertical direction being greater than the length of the second plate portion 65 in the vertical direction. The first mounting portion 64a is located at the top of the front end portion 63. The bottom of the first mounting portion 64a has another retaining portion 64a1 that corresponds to and engages with the retaining hole 18 and is vertically aligned with the retaining portion 64a1 of the first mounting portion 64a. The second insulating body 6 also includes a third mounting portion 64c located at the rear end. The third mounting portion 64c has a rearwardly extending fixing protrusion 66. The second mounting portion 64b is located at the top of the second plate portion 65, and the third mounting portion 64c is located at the rear end of the second plate portion 65. The second plate portion 65 also includes a terminal protrusion portion 67 located at the bottom.

[0056] Please refer to Figure 13 and Figure 14 As shown, the second terminal group 7 of the second terminal module 22 includes a plurality of conductive terminals 70 fixed within the second insulating body 6. Each conductive terminal 70 of the second terminal group 7 includes an embedded portion 74 fixed within the second insulating body 6, a mating portion 73 extending forward from the front end of the embedded portion 74 and protruding from the front end portion 63 of the second insulating body 6, and a fixing foot 76 extending downward from the embedded portion 74 and protruding from the terminal exposure portion 67 of the second insulating body 6. The embedded portion 74 includes a first segment 74a extending in a front-rear direction, a second segment 74b extending in a vertical direction, and a third segment 74c connecting the first segment 74a and the second segment 74b. The mating portion 73 is connected to the front end of the first segment 74a, and the fixing foot 76 is connected to the lower end of the second segment 74b. Please refer to... Figure 13As shown, the conductive terminals 70 in the second terminal group 7 are arranged in the up-down direction when viewed in the lateral direction, and the extension lengths of the first section 74a, the second section 74b and the third section 74c of the embedding portion 74 of the upper conductive terminal 70 of any two conductive terminals 70 are greater than the extension lengths of the first section 74a, the second section 74b and the third section 74c of the embedding portion 74 of the lower conductive terminal 70. The conductive terminals 70 include signal terminals 71 and ground terminals 72. Please refer to Figure 14 As shown, the first terminal group 4 is arranged in the manner of continuous arrangement of two signal terminals 71 and one ground terminal 72 when viewed in the lateral direction.

[0057] Please refer to Figure 12 and Figure 13 As shown, the second metal shielding plate 8 of the second terminal module 22 is a metal plate member formed by stamping. The second metal shielding plate 8 is electrically connected to each ground terminal 72 in the second terminal group 7, each ground terminal 72 of the mating connector and the second circuit board. The second metal shielding plate 8 is fixed to the first surface 6a of the second insulating body 6. The second metal shielding plate 8 includes a partition plate 81 at the front end, a fixing plate 86 at the rear end and a connecting plate 84 connecting the partition plate 81 and the fixing plate 86. Please refer to Figure 12 and Figure 14 As shown, the partition plate 81 and the mating portion 73 of the second terminal group 7 are arranged in the lateral direction. The connecting plate 84 and the front end portion 63 are arranged in the lateral direction. The fixing plate 86 and the second plate body portion 65 are arranged in the lateral direction.

[0058] The partition part 81 is provided with a plurality of second windows 82, and the second windows 82 are arranged in the lateral direction to overlap the butt joint parts 73 of the signal terminals 71 of the second terminal group 7 to improve the performance of signal transmission integrity. The arrangement of the plurality of second windows 82 includes at least three second windows 82 arranged in the front-rear direction and arranged in two rows in the up-down direction, and the arrangement corresponds to the butt joint parts 73 of two adjacent signal terminals 71 in the second terminal group 7. The partition part 81 has a plurality of second windows 82 arranged in the above-mentioned two-row arrangement corresponding to a plurality of butt joint parts 73 of two adjacent signal terminals 71. The partition part 81 further includes a contact spring 83 overlapping the butt joint part 73 of each ground terminal 72 in the second terminal group 7 in the lateral direction. The contact spring 83 is formed by tearing and molding, and the contact spring 83 extends towards the butt joint part 73 of the corresponding ground terminal 72. The contact spring 83 and the butt joint part 73 of the ground terminal 72 can clamp the butt joint terminal for grounding of the butt joint connector in the lateral direction, so as to realize the function of common grounding between each ground terminal 72, the first contact spring 83 metal shielding plate and each butt joint terminal for grounding of the butt joint connector.

[0059] Please refer to Figure 12 The first surface 6a of the front end part 63 is provided with a plurality of convex columns 631, and the connecting plate 84 is provided with a plurality of mounting holes 85 corresponding to the plurality of convex columns 631. The convex columns 631 and the mounting holes 85 are inserted and matched to fix the second insulating body 6 and the second metal shielding plate 8.

[0060] Please refer to Figure 13 and Figure 14As shown, two adjacent signal terminals 71 in the second terminal group 7 form a pair of differential signal terminal 71 group, and the second terminal group 7 includes several pairs of differential signal terminal 71 group. The second surface 6b of the second insulating body 6 is recessed inward in the lateral direction to form several grooves 61. Each groove 61 partially overlaps with the embedded portion 74 of each signal terminal 71 in the lateral direction. The second surface 6b of the second insulating body 6 is also recessed inward in the lateral direction to form several through holes 62. The embedded portion 74 of each ground terminal 72 is partially exposed at the second surface 6b at the through hole 62. Some of the through holes 62 are connected to the corresponding grooves 61, thereby improving the integrity of high-frequency signals. The embedded portion 74 of each ground terminal 72 exposed at the through hole 62 is provided with a clamping groove 75. The second metal shielding plate 8 is provided with a clamping piece 87 corresponding to each clamping groove 75, so that each ground terminal 72 in the second terminal group 7 and the second metal shielding plate 8 achieve the effect of common grounding. Each clamping piece 87 corresponds to the extension direction of the embedded portion 74 of each ground terminal 72 in the second terminal group 7, and the distance between adjacent two clamping pieces 87 is less than or equal to 3.6 mm.

[0061] Please refer to Figure 12 and Figure 14 As shown, at the position where the front end 63 of the second insulating body 6 in the lateral direction overlaps with the connecting plate 84 of the second metal shielding plate 8, the same number of clamping pieces 87 as the number of ground terminals 72 in the second terminal group 7 and the number of clamping grooves 75 are arranged in the up-down direction. In this way, the signal can be optimized on the side of the second terminal module 22 close to the mating portion 73.

[0062] Please refer to Figures 6 to 14 As shown, the difference between the first terminal module 21 and the second terminal module 22 is that the first terminal group 4 in the first terminal module 21 is offset in the up-down direction from the second terminal group 7 in the second terminal module 22. Therefore, the several mounting slots 17 of the insulating fixing member 1 are distinguished by the first mounting slot 17a and the second mounting slot 17b corresponding to the first terminal module 21 and the second terminal module 22, respectively. The first mounting slot 17a and the second mounting slot 17b are offset in the up-down direction as a whole and are prevented from being installed in the mounting slot 17 by the respective foolproof portions 19.

[0063] Please refer to Figures 1 to 4As shown, the metal bracket 9 is generally in the shape of "L". The metal bracket 9 includes an upper plate portion 92 held on the top ends of the first and second insulating bodies 3 and 6, and a rear plate portion 93 held on the rear ends of the first and second insulating bodies 3 and 6. The upper plate portion 92 includes clamping portions 921 for clamping the fixing grooves 64b1 of the second mounting portions 64b of the first and second insulating bodies 3 and 6. The rear plate portion 93 includes clamping grooves 931 for clamping the fixing lugs 66.

[0064] Please refer to Figures 1 to 4 As shown, the insulating support 95 is integrally insulated, and includes a plurality of terminal holes 96 penetrating the insulating support 95 in the up-down direction. The terminal fixing feet 76 of the first and second terminal modules 21 and 22 respectively pass through the corresponding terminal holes 96 downward to be fixed below the respective terminal modules, and ensure the alignment of the respective fixing feet 76.

[0065] The backboard connector 100 provided by the application is assembled as follows: first, a first terminal group 4 is provided, which comprises at least two signal terminals 41 and one ground terminal 42, and the first terminal group 4 is integrally formed with the first insulating body 3. Then, a first metal shielding plate 5 is provided, which is installed on the first surface 3a of the first insulating body 3 and is grounded with each ground terminal 42, thereby forming a first terminal module 21. Then, a second terminal group 7 is provided, which also comprises at least two signal terminals 71 and one ground terminal 72, and the second terminal group 7 is integrally formed with the second insulating body 6. Then, a second metal shielding plate 8 is provided, which is installed on the first surface 6a of the second insulating body 6 and is grounded with each ground terminal 72, thereby forming a second terminal module 22. At least one first terminal module 21 and at least one second terminal module 22 are obtained through the above process. Then, the front end portions 33 and 63 of the first terminal module 21 and the second terminal module 22 are respectively installed in the first mounting slot 17a and the second mounting slot 17b of the insulating fixing member 1, at this time, the clamping portions (34a1 and 64a1) at the upper and lower ends of the first insulating body 3 and the second insulating body 6 are clamped in the clamping hole 18 of the insulating fixing member 1. At this time, the top end and the lower end of each first terminal module 21 and each second terminal module 22 are arranged in the same horizontal plane in the up-down direction, and the front end of the partition portion 51 and 81 of the first terminal module 21 and the second terminal module 22 is inserted into the gap 151 between the frame 15 located in the mounting space 14 and the inner surface of the mounting space 14. Then, the metal bracket 9 is installed from the rear to the front on the rear end of each first terminal module 21 and each second terminal module 22, the clamping portion 921 of the metal bracket 9 clamps the fixing slot (34b1 and 64b1) of the second mounting portion (34b and 64b) of each terminal module from the front, and the fixing protrusion (36 and 66) of each terminal module is clamped in the clamping slot 931 of the metal bracket 9 from the rear. Then, the insulating support member 95 is installed from the bottom to the top on the lower end of each terminal module, thereby achieving the overall fixation.

[0066] The backplane connector 100 provided by the present application has a suspension structure with elasticity for the contact portion (43, 73) of each conductive terminal (40, 70). The contact portion (43, 73) of each of the two signal terminals (41, 71) in each signal differential pair is provided with two rear cantilever arms (431, 731) and a contact portion (432, 732) at the free end of each cantilever arm (431, 731). It is to be noted that the two contact portions (432, 732) of each of the two signal terminals (41, 71) in the signal differential pair are located behind the two contact portions (432, 732) located at the outer side in the front-rear direction, i.e., there are four contact portions (432, 732) in each signal differential pair, and the extension length of the two cantilever arms (431, 731) located at the outer side is greater than that of the two cantilever arms (431, 731) located at the inner side, so as to optimize the signal integrity. Please refer to Figure 15 The contact portion (43, 73) includes a cantilever arm (431, 731) extending from the front end portion 63 and a contact portion (432, 732) of the contact portion (43, 73). The contact portion (432, 732) is substantially "V"-shaped. Please refer to Figures 16 to 18 The present application also provides another embodiment, as shown in the drawing, the contact portion (432, 732) is substantially "C"-shaped when viewed in the lateral direction, and is three-quarter circular arc-shaped, and the opening in the three-quarter circular arc-shaped contact portion (432', 732') is away from the contact terminal to be contacted with the contact portion (432', 732'). This has a good guiding effect, and prevents the conductive terminal (40, 70) of the backplane connector 100 from being damaged when contacted with the mating contact.

[0067] The above embodiments only express the preferred embodiments of the present application, which are described in detail and specifically, but cannot be understood as the limitation of the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A backplane connector comprising an insulating fixture, a plurality of terminal modules mounted to the insulating fixture, a metal bracket fixing the plurality of terminal modules, and an insulating support, each of the terminal modules comprising an insulating body, a terminal set held in the insulating body, and a metal shielding plate mounted to the insulating body, each of the terminal sets comprising a plurality of conductive terminals, each of the conductive terminals comprising a buried portion held in the insulating body, a mating portion extending forwardly from a front end of the buried portion to be exposed to the insulating body, and a fixing leg extending downwardly from the buried portion to be exposed to the insulating body, characterized in that, The metal shielding plate is a metal component formed by punch forming, comprising a partition plate part at the front end, a fixed plate at the rear end, and a connecting plate connecting the partition plate part and the fixed plate, the partition plate part is arranged in the transverse direction overlapping with the butt joint part of the conductive terminal in each terminal module, the terminal module comprises a plurality of first terminal modules and a plurality of second terminal modules, the first terminal group in the first terminal module is arranged in the up-down direction offset from the second terminal group in the second terminal module; a plurality of conductive terminals in each terminal module comprise a plurality of signal terminals, the butt joint part of the plurality of signal terminals is provided with two rear cantilevers, and the free end of each cantilever forms a contact part, the extension length of the two outer cantilevers is greater than that of the two inner cantilevers.

2. The backplane connector of claim 1, wherein: A plurality of conductive terminals in each terminal module also include a plurality of ground terminals, and the metal shielding plate is in electrical connection with each ground terminal.

3. The backplane connector of claim 2, wherein: The partition plate part in each terminal module is provided with a plurality of windows, and each of the plurality of windows is arranged in the transverse direction overlapping with the butt joint part of the corresponding signal terminal.

4. The backplane connector of claim 3, wherein: When viewed in the transverse direction, the conductive terminals in each terminal module are arranged in a continuous arrangement of two signal terminals and one ground terminal, and the butt joint part of each signal terminal is corresponded by at least one of the windows.

5. The backplane connector of claim 2, wherein: The partition plate part of the metal shielding plate in each terminal module comprises a plurality of contact springs overlapping in the transverse direction with the butt joint part of each ground terminal, and each contact spring extends towards the butt joint part of the corresponding ground terminal.

6. The backplane connector of claim 2, wherein: The insulating body in each terminal module further comprises a front end part at the front end and a plate body part connected to the rear end of the front end part, the length of the front end part in the up-down direction is greater than that of the plate body part in the up-down direction, and a plurality of recesses are recessed inward in the transverse direction on one side of the insulating body, each of the plurality of recesses partially overlaps with the embedded part of each signal terminal in the transverse direction, and a plurality of through holes are further recessed inward in the transverse direction on one side of the insulating body, the embedded part of each ground terminal is partially exposed at the through hole and provided with a clamping groove, and the metal shielding plate is provided with a clamping piece corresponding to each clamping groove.

7. The backplane connector of claim 6, wherein: Each clamping piece in each terminal module is arranged in the extension direction corresponding to the embedded part of each ground terminal, and the distance between adjacent two clamping pieces is less than or equal to 3.6mm.

8. The backplane connector of claim 6, wherein: Part of the plurality of through holes in each terminal module is connected corresponding to the plurality of recesses.

9. The backplane connector of claim 6, wherein: The front end part of the insulating body in each terminal module and the connecting plate of the metal shielding plate are arranged in the up-down direction at the position overlapping in the transverse direction, and the number of clamping pieces corresponding to the number of ground terminals and the number of clamping grooves are arranged.

10. The backplane connector of claim 1, wherein: The metal shielding plate in each terminal module is fixed with the insulating body by riveting.

11. The backplane connector of claim 10, wherein: The other side of the front end part of the insulating body in each terminal module is provided with a plurality of protruding columns, and the connecting plate of the metal shielding plate is provided with a plurality of mounting holes corresponding to the plurality of protruding columns for riveting.

12. The backplane connector of claim 1, wherein: The first terminal module and the second terminal module are arranged in the transverse direction.

13. The backplane connector of claim 1, wherein: The backboard connector comprises metal supports and insulating supports for fixing the terminal modules, and the fixed feet of the conductive terminals pass through the insulating supports downwardly.

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