Wire-to-board connector

Abstract

The embodiment of the invention discloses a wire-to-board connector, which comprises a first terminal module, a shielding piece and a plurality of first cables, and is characterized in that the first terminal module comprises a plurality of first signal terminals and a plurality of first grounding terminals, and each first grounding terminal comprises a first main body part and a first butt joint part connected with the first main body part; the shielding piece comprises a base part and a plurality of shielding parts connected with the base part, the plurality of shielding parts are correspondingly connected with the plurality of first main body parts, and bending parts are arranged on the two sides of the shielding parts; each first cable comprises a first core body, the first core bodies are correspondingly connected with the first signal terminals, and at least part of each first core body is located between every two adjacent bending parts in the first direction. By arranging the bending parts for shielding the first cables which are adjacently arranged in pairs, external electromagnetic interference or internal signal crosstalk can be effectively blocked, so that the transmission stability and signal integrity of the first cables are ensured.

Description

TECHNICAL FIELD

[0001] The application relates to a wire-to-board connector and belongs to the technical field of connectors. BACKGROUND

[0002] The wire-to-board connector in the prior art comprises an insulating body, signal terminals, ground terminals and cables. The cables comprise wires connected to the signal terminals. However, as the electronic devices have higher requirements for data transmission, how to improve the anti-interference performance in the data transmission process is a technical problem to be solved by those skilled in the art. SUMMARY

[0003] One embodiment of the application provides a wire-to-board connector with good electromagnetic shielding effect.

[0004] In the embodiments of the application,

[0005] A wire-to-board connector comprises: a first terminal module, the first terminal module comprising a plurality of first signal terminals and a plurality of first ground terminals, every two first signal terminals forming a first differential pair, the first differential pair and the first ground terminals being arranged alternately along a first direction, the first ground terminals comprising a first main body portion and a first mating portion connected to the first main body portion; a shielding member, the shielding member comprising a base portion and a plurality of shielding portions connected to the base portion, the plurality of shielding portions being connected to the plurality of first main body portions, each shielding portion being provided with a bending portion on both sides; and a plurality of first cables, each first cable comprising a first core, the plurality of first cores being connected to the plurality of first signal terminals, along the first direction, the first core being located at least partially between two adjacent bending portions.

[0006] As a further improved technical solution of the embodiments of the application, the bending portion extends from the shielding portion to a direction away from the first main body portion.

[0007] As a further improved technical solution of the embodiments of the application, along a third direction perpendicular to the first direction, the height of the bending portion is h1, and the diameter of the first core is d, wherein h1 is greater than or equal to d.

[0008] As a further improved technical solution of the embodiments of the application, the shielding portion comprises a flat plate portion and an inclined portion, the inclined portion connecting the flat plate portion and the base portion, the inclined portion extending obliquely from the flat plate portion to a direction away from the first main body portion, the flat plate portion being connected to the first main body portion, and the bending portion being connected to the flat plate portion.

[0009] As a further improved technical solution of the embodiment of the present application, the height of the bending part is h1 and the height of the inclined part is h2 along a third direction perpendicular to the first direction, wherein h1 is less than h2.

[0010] As a further improved technical solution of the embodiment of the present application, the first terminal module includes a first insulating block, and the first signal terminals and the first ground terminals are arranged on the first insulating block, and the first insulating block includes a first surface and a plurality of protrusions protruding from the first surface, and a positioning groove for positioning the inclined part is formed between each two adjacent protrusions.

[0011] As a further improved technical solution of the embodiment of the present application, the first cable includes a first insulating layer wrapped outside the first core body, a first shielding layer wrapped outside the first insulating layer, and a first insulating skin wrapped outside the first shielding layer, the first core body includes a connecting part exposed outside the first insulating layer, the connecting part is welded and fixed with the first signal terminal, and the length of the bending part is greater than the length of the connecting part along a second direction perpendicular to the first direction.

[0012] As a further improved technical solution of the embodiment of the present application, the first terminal module includes a first ground sheet, the first ground terminals are connected with the first ground sheet, the first shielding layer includes a first section, the first section is exposed outside the first insulating skin, and the first section is connected with the first ground sheet.

[0013] As a further improved technical solution of the embodiment of the present application, the wire-to-board connector includes a second terminal module, the second terminal module includes a plurality of second signal terminals, a plurality of second ground terminals, and a second ground sheet, each two second signal terminals form a second differential pair, the second differential pair and the second ground terminals are arranged alternately along the first direction, the second ground terminals are connected with the second ground sheet, the first shielding layer includes a second section, the second section is exposed outside the first insulating skin, and the second section is connected with the second ground sheet.

[0014] As a further improved technical solution of the embodiment of the present application, the wire-to-board connector includes a plurality of second cables, the second cable includes a second core body, a second insulating layer wrapped outside the second core body, and a second shielding layer wrapped outside the second insulating layer, the second core body is connected with the second signal terminal, and the second shielding layer is connected with the second ground sheet.

[0015] The wire-to-board connector provided in the application comprises a first terminal module, a shielding member and a plurality of first cables, the first terminal module comprises a plurality of first signal terminals and a plurality of first ground terminals, the first ground terminals comprise first body parts and first mating parts; the shielding member comprises a base part and a plurality of shielding parts, the plurality of shielding parts are connected with the plurality of first body parts in correspondence, and both sides of the shielding parts are provided with bending parts; the first cables each comprise a first core body, and along a first direction, the first core body is at least partially located between two adjacent bending parts; by arranging the bending parts, the first cables arranged in pairs are shielded, external electromagnetic interference or internal signal crosstalk can be effectively blocked, so as to ensure the stability and signal integrity of the first cables. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of a wire-to-board connector assembly of an embodiment of the application; Figure 2 is an exploded view of the wire-to-board connector assembly shown in Figure 1 Figure 3 is a perspective view of the wire-to-board connector assembly shown in Figure 1 from another angle; Figure 4 is an exploded view of the wire-to-board connector assembly shown in Figure 3 Figure 5 is a perspective view of part of the structure shown in Figure 2 Figure 6 is an exploded view of the structure shown in Figure 5 Figure 7 is an enlarged view of area A in Figure 6 Figure 8 is a perspective view of part of the structure shown in Figure 6 Figure 9 is an enlarged view of area B in Figure 8 Figure 10 is an exploded view of the structure shown in Figure 8 Figure 11 is a perspective view of the shielding member and the first insulating block in Figure 6 Figure 12 is an exploded view of the structure shown in Figure 11 Figure 13 is an enlarged view of area C in Figure 12 Figure 14 is a side view of the shielding member in Figure 12 ​​​​​​​​​​​​

[0017] Those skilled in the art should understand that the accompanying drawings provided herein are for the purpose of illustrating specific embodiments of this application, and the scale shown in the drawings is only for illustrative embodiments; other embodiments are not necessarily implemented to scale. Detailed Implementation

[0018] The exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with this application; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of this application as set forth in the claims.

[0019] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this application. The singular forms "a," "the," or "the" as used in the description and claims of this application are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0020] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this application do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "above," "below," and similar words appearing in this application are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" and similar words are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. If "several" appears in this application, it means two or more.

[0021] Please refer to Figures 1 to 14 As shown in the figure, this application discloses a wire-to-board connector assembly, which includes a circuit board 200, a wire-to-board connector 100 mounted on the circuit board 200, and a fastening assembly 300 for fixing the wire-to-board connector 100 to the circuit board 200.

[0022] In some implementation methods, please refer to Figure 2 and Figure 4As shown, the circuit board 200 includes an upper surface 201, a lower surface 202, a plurality of metal conductive sheets 203 exposed on the upper surface 201, a plurality of metal grounding sheets 204 exposed on the upper surface 201, a plurality of mounting holes 205 penetrating the upper surface 201 and the lower surface 202, and a plurality of positioning holes 206 penetrating the upper surface 201 and the lower surface 202. The plurality of metal conductive sheets 203 includes a plurality of first metal conductive sheets 2031 located in a first row and a plurality of second metal conductive sheets 2032 located in a second row, with the first metal conductive sheets 2031 and the second metal conductive sheets 2032 located in two parallel rows. The plurality of metal grounding sheets 204 includes a plurality of first metal grounding sheets 2041 located in a first row and a plurality of second metal grounding sheets 2042 located in a second row, with pairs of first metal grounding sheets 2041 and pairs of first metal conductive sheets 2031 alternating, and pairs of second metal grounding sheets 2042 and pairs of second metal conductive sheets 2032 alternating.

[0023] In some implementation methods, please refer to Figure 2 As shown, the fastening assembly 300 includes a bolt 301, a base plate 302, and a convex ring 303 disposed on the base plate 302. The convex ring 303 has an internal thread, and the bolt 301 passes through the mounting hole 205 and is fixed to the internal thread of the convex ring 303.

[0024] Please refer to Figure 2 As shown, the wire-to-board connector 100 includes an insulating body 1, a first terminal module 2, a second terminal module 3, a plurality of first cables 4, a plurality of second cables 5, and an outer metal housing 7. The outer metal housing 7 is mounted outside the insulating body 1.

[0025] Please refer to Figure 2 , Figure 4 and Figure 6 As shown, the insulating body 1 includes a fourth surface 16, a fifth surface 17, a plurality of mounting holes 18, a plurality of positioning posts 19, a first opening 11 penetrating the fifth surface 17 and the fourth surface 16, a second opening 12 penetrating the fifth surface 17 and the fourth surface 16, and a partition wall 13 located between the first opening 11 and the second opening 12 in a second direction A2-A2 (e.g., a front-to-back direction). When the wire-to-board connector 100 is assembled, the mounting holes 18 are aligned with the mounting holes 205 to allow the fastening assembly 300 to pass through. The positioning posts 19 are inserted into the positioning holes 206 to position the wire-to-board connector 100 on the circuit board 200. In some embodiments, please refer to... Figure 4 As shown, the first terminal module 2 is installed in the first opening 11 from the fourth surface 16, and the second terminal module 3 is installed in the second opening 12 from the fourth surface 16. The partition wall 13 is provided with a plurality of cable positioning grooves 130 for positioning a plurality of first cables 4.

[0026] Please refer toFigure 6 As shown, the first terminal module 2 includes a first insulating block 24, a plurality of first signal terminals S1, a plurality of first ground terminals G1, and a first grounding piece 23. In some embodiments, the plurality of first signal terminals S1 and the plurality of first ground terminals G1 are all embedded in the first insulating block 24, and the first insulating block 24 is at least partially installed in the first opening 11. Of course, those skilled in the art will understand that the plurality of first signal terminals S1 and the plurality of first ground terminals G1 can also be fixed to the first insulating block 24 by other means (e.g., assembly).

[0027] Please refer to Figure 6 As shown, every two first signal terminals S1 form a first differential pair DP1. A first ground terminal G1 is provided on each of the adjacent sides of the first differential pair DP1. Several first ground terminals G1 are connected to the first grounding plate 23 to increase the grounding area. In some embodiments, the first differential pair DP1 and the first ground terminals G1 are arranged alternately along a first direction A1-A1 (e.g., left-right direction). Please refer to... Figure 7 As shown, the first signal terminal S1 includes a first cable connection portion 211 and a second mating portion 212. The first cable connection portion 211 includes a third surface 2111, which is at least partially exposed outside the first insulating block 24. The second mating portion 212 extends cantileveredly out of the first insulating block 24. The first grounding terminal G1 includes a first main body portion 221 and a first mating portion 222 connected to the first main body portion 221. The first main body portion 221 is connected to the first grounding plate 23. The first main body portion 221 includes a second surface 2211, which is at least partially exposed outside the first insulating block 24. The first mating portion 222 extends cantilevered out of the first insulating block 24. The first mating portion 222 is connected to the first metal grounding plate 2041, and the second mating portion 212 is connected to the first metal conductive plate 2031.

[0028] In some implementations, the third surface 2111 is flush with the second surface 2211. "Flush" means that the third surface 2111 and the second surface 2211 are at the same height, but slight height adjustments are allowed, such as due to manufacturing process tolerances, as long as the tolerances are within a reasonable range.

[0029] Please refer to Figure 10 As shown, the first docking portion 222 includes two forked first elastic docking portions 2221. The sum of the widths of the two first elastic docking portions 2221 is not less than the width of the second docking portion 212 of the first signal terminal S1, so as to provide a better shielding effect.

[0030] Please refer to Figure 6As shown, the second terminal module 3 includes a second insulating block 34, a plurality of second signal terminals S2, a plurality of second ground terminals G2, and a second grounding piece 33. In some embodiments, the plurality of second signal terminals S2 and the plurality of second ground terminals G2 are all embedded in the second insulating block 34, and the second insulating block 34 is at least partially installed in the second opening 12. Of course, those skilled in the art will understand that the plurality of second signal terminals S2 and the plurality of second ground terminals G2 can also be fixed to the second insulating block 34 by other means (e.g., assembly).

[0031] Please refer to Figure 6 As shown, every two second signal terminals S2 form a second differential pair DP2. A second grounding terminal G2 is provided on each of the adjacent sides of the second differential pair DP2. Several second grounding terminals G2 are connected to the second grounding plate 33 to increase the grounding area. In some embodiments, the second differential pair DP2 and the second grounding terminals G2 are arranged alternately along the first direction A1-A1. Please refer to... Figure 7 As shown, the second signal terminal S2 includes a second cable connection portion 311 and a fourth mating portion 312. The second cable connection portion 311 includes a fifth surface 3111, which is at least partially exposed outside the second insulating block 34. The fourth mating portion 312 extends cantileveredly out of the second insulating block 34. The second grounding terminal G2 includes a second main body portion 321 and a third mating portion 322 connected to the second main body portion 321. The second main body portion 321 includes a fourth surface 3211, which is at least partially exposed outside the second insulating block 34. The third mating portion 322 extends cantilevered out of the second insulating block 34. The third mating portion 322 is connected to the second metal grounding plate 2042, and the fourth mating portion 312 is connected to the second metal conductive plate 2032.

[0032] In some implementations, the fifth surface 3111 is flush with the fourth surface 3211. "Flush" means that the fifth surface 3111 and the fourth surface 3211 are at the same height, but slight height adjustments are allowed, such as due to manufacturing process tolerances, as long as the tolerances are within a reasonable range.

[0033] Please refer to Figure 10 As shown, the third docking portion 322 includes two forked second elastic docking portions 3221. The sum of the widths of the two second elastic docking portions 3221 is not less than the width of the fourth docking portion 312 of the second signal terminal S2, so as to provide a better shielding effect.

[0034] In some embodiments, the first signal terminal S1 and the second ground terminal G2 are arranged along a second direction A2-A2 (e.g., front-back direction) perpendicular to the first direction A1-A1, the second signal terminal S2 and the first ground terminal G1 are arranged along the second direction A2-A2, and the first ground piece 23 and the second ground piece 33 are arranged along the second direction A2-A2.

[0035] In some embodiments, a plurality of first grounding terminals G1 are integrally formed with the first grounding piece 23 (e.g., by stamping). Please refer to... Figure 8 As shown, the first grounding piece 23 includes a first body 231 and two first grounding portions 232 connected to both ends of the first body 231. Correspondingly, the insulating body 1 is provided with a first slot 14, through which the first grounding portions 232 are exposed to the insulating body 1. The first slot 14 is a through hole penetrating the fourth surface 16 and the fifth surface 17. In some embodiments, the through hole is rectangular; of course, in other embodiments, the through hole can also be other shapes, which will not be described in detail here. The first grounding portions 232 are exposed to the fifth surface 17 of the insulating body 1 from the first slot 14 to contact the outer metal casing 7.

[0036] In some embodiments, a plurality of second grounding terminals G2 are integrally formed with the second grounding piece 33 (e.g., by stamping). Please refer to... Figure 8 and Figure 10 As shown, the second grounding piece 33 includes a second body 331 and two second grounding portions 332 connected to both ends of the second body 331. Correspondingly, the insulating body 1 is provided with a second slot 15, through which the second grounding portions 332 are exposed to the insulating body 1. The second slot 15 is a through hole penetrating the fourth surface 16 and the fifth surface 17. In some embodiments, the through hole is rectangular; of course, in other embodiments, the through hole can also be other shapes, which will not be described in detail here. The second grounding portions 332 are exposed to the fifth surface 17 of the insulating body 1 through the second slot 15 to contact the outer metal casing 7.

[0037] In some implementation methods, please refer to Figure 10 As shown, the first body 231 includes a first surface 2311, and the second body 331 includes a second surface 3311. The first cable 4 is located on the same side as the first surface 2311 and the second surface 3311, wherein the first surface 2311 and the second surface 3311 are flush. "Flush" means that the first surface 2311 and the second surface 3311 are at the same height, but slight height adjustments are allowed, such as due to manufacturing process tolerances, as long as the tolerance is within a reasonable range. The first surface 2311 is exposed outside the first insulating block 24, and the second surface 3311 is exposed outside the second insulating block 34.

[0038] Please refer toFigure 7 As shown, each first cable 4 is a coaxial cable, comprising a first core 41, a first insulating layer 42 wrapped around the first core 41, a first shielding layer 43 wrapped around the first insulating layer 42, and a first insulating sheath 44 sleeved over the first shielding layer 43. The first core 41 is connected to the first cable connection portion 211 of the first signal terminal S1. In some embodiments, the first shielding layer 43 is connected to both the first body 231 of the first grounding plate 23 and the second body 331 of the second grounding plate 33, thereby forming a dual-point grounding structure, significantly improving the electromagnetic shielding effect and effectively suppressing crosstalk and noise in signal transmission.

[0039] Please refer to Figure 7 As shown, each second cable 5 is a coaxial cable, comprising a second core 51, a second insulating layer 52 wrapped around the second core 51, a second shielding layer 53 wrapped around the second insulating layer 52, and a second insulating sheath 54 sleeved over the second shielding layer 53. The second core 51 is connected to the second cable connection portion 311 of the second signal terminal S2, and the second shielding layer 53 is connected to the second body 331 of the second grounding plate 33.

[0040] In some implementation methods, please refer to Figure 8 As shown, the wire-to-board connector includes a grounding component 6, which is soldered to the first surface 2311, for example, by soldering. Please refer to... Figure 10 As shown, the grounding component 6 includes a third surface 61, and the first shielding layer 43 is simultaneously welded and fixed to the third surface 61 and the second surface 3311 of the second body 331. The grounding component 6 is used to centrally connect the shielding layers of multiple coaxial cables, providing a unified, low-impedance grounding path, ensuring that the shielding layers of all coaxial cables share a common ground, reducing grounding potential differences, enhancing shielding effectiveness, and preventing signal crosstalk and external interference. In another embodiment, the first shielding layer 43 is simultaneously welded and fixed to the first surface 2311 of the first body 231 and the second surface 3311 of the second body 331.

[0041] Please refer to Figure 10 As shown, the first shielding layer 43 includes a first segment 431 and a second segment 432, both of which are exposed outside the first insulating layer 44. During manufacturing, the first insulating layer 44 is peeled off at two points to expose the first segment 431 and the second segment 432. The first segment 431 is connected to the first body 231 of the first grounding piece 23, and the second segment 432 is connected to the second body 331 of the second grounding piece 33. In some embodiments, along the second direction A2-A2, the width of the first body 231 is not greater than the length of the first segment 431, the width of the second body 331 is not greater than the length of the second segment 432, and the width of the grounding piece 6 is not greater than the length of the first segment 431, thereby ensuring sufficient contact between the grounding piece and the shielding layer.

[0042] Please refer to Figure 5 , Figure 7 and Figure 9 As shown, the wire-to-board connector includes a shield 8, which includes a base 81 and a plurality of shielding portions 82 connected to the base 81. The plurality of shielding portions 82 are correspondingly connected to a plurality of first main body portions 221. In some embodiments, each shielding portion 82 has a bend 83 on both sides, and along a first direction A1-A1, the first core 41 is at least partially located between two adjacent bends 83. By providing the bends 83 to shield adjacent paired first cables 4, external electromagnetic interference or internal signal crosstalk can be effectively blocked, thereby ensuring the stability and signal integrity of cable transmission.

[0043] In some embodiments, the bent portion 83 extends vertically from the shielding portion 82 in a direction away from the first main body portion 221. That is, the bent portion 83 extends along a third direction A3-A3 (e.g., the vertical direction) perpendicular to the first direction A1-A1.

[0044] In some implementation methods, please refer to Figures 1 to 13 As shown, along a third direction A3-A3 perpendicular to the first direction A1-A1, the height of the bent portion 83 is h1, and the diameter of the first core 41 is d, where h1 ≥ d. Along the third direction A3-A3, the first core 41 does not extend beyond the top surface 831 of the bent portion 83 to ensure complete shielding, effectively prevent electromagnetic interference, and improve signal transmission stability.

[0045] For details, please refer to Figure 14 As shown, the shielding portion 82 includes a flat plate portion 821 and an inclined portion 822, with the inclined portion 822 connecting the flat plate portion 821 and the base portion 81. The inclined portion 822 extends inclinedly from the flat plate portion 821 in a direction away from the first main body portion 221. The flat plate portion 821 is connected to the first main body portion 221, and the bent portion 83 is connected to the flat plate portion 821 to raise the height of the base portion 81, while the base portion 81 does not protrude beyond the first opening 11. In some embodiments, please refer to... Figure 12 As shown, along a third direction A3-A3 perpendicular to the first direction A1-A1, the height of the inclined portion 822 is h2, where h1 < h2.

[0046] Please refer to Figure 13 and Figure 9 As shown, the first insulating block 24 includes a first surface 241 and a plurality of protrusions 242 protruding from the first surface 241. A positioning groove 243 of a positioning inclined portion 822 is formed between each two adjacent protrusions 242 to facilitate the positioning and installation of the shielding member 8.

[0047] In some implementation methods, please refer to Figure 10 and Figure 2As shown, the first core 41 includes a connecting portion 411 exposed outside the first insulating layer 42, which is welded and fixed to the first cable connecting portion 211 of the first signal terminal S1. Along the second direction A2-A2, the length of the bending portion 83 is greater than the length of the connecting portion 411, thereby ensuring complete shielding and effectively preventing electromagnetic interference.

[0048] In some implementation methods, please refer to Figure 2 As shown, the outer metal casing 7 includes a first casing 71, a second casing 72, and a cover plate 73, wherein the first casing 71 and the second casing 72 are detachably connected to the cover plate 73. The first casing 71 has a first storage space 710, and the second casing 72 has a second storage space 720. The insulating body 1 includes a first mounting portion 1a and a second mounting portion 1b, both of which are provided with mounting holes 18. The first mounting portion 1a is at least partially disposed in the first storage space 710, and the second mounting portion 1b is at least partially disposed in the second storage space 720. The cover plate 73 has a third storage space 730, in which the first casing 71, the second casing 72, and the insulating body 1 are all disposed. The cover plate 73 and the circuit board 200 are located on different sides of the insulating body 1 in the thickness direction. The cover plate 73, the first casing 71, and the first mounting portion 1a of the insulating body 1 are together fixed to the circuit board 200 by a fastening assembly 300. The cover plate 73, the second housing 72, and the second mounting part 1b of the insulating body 1 are together fixed to the circuit board 200 by another fastening component 300.

[0049] In some implementation methods, please refer to Figure 4 and Figure 2 As shown, both the first housing 71 and the second housing 72 include a first protrusion 701 extending into the first slot 14, and the first protrusion 701 is connected to the first grounding portion 232. Both the first housing 71 and the second housing 72 include a second protrusion 702 extending into the second slot 15, and the second protrusion 702 is connected to the second grounding portion 332.

[0050] In some implementation methods, please refer to Figure 4 and ​ As shown, both the first housing 71 and the second housing 72 are provided with slots 703, and the cover plate 73 is provided with a buckle part 732 protruding into the third storage space 730. When the cover plate 73 is assembled with the first housing 71 and the second housing 72, the buckle part 731 is engaged with the slot 703 to achieve positioning and assembly of the two.

[0051] The above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. The understanding of this application should be based on those skilled in the art. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A wire-to-board connector characterized by comprising: The utility model relates to a terminal module, and particularly relates to a first terminal module (2) and a shielding piece (8). The first terminal module (2) comprises a plurality of first signal terminals (S1) and a plurality of first ground terminals (G1), every two first signal terminals (S1) form a first differential pair (DP1), the first differential pair (DP1) and the first ground terminal (G1) are arranged alternately along a first direction (A1-A1), the first ground terminal (G1) comprises a first body part (221) and a first connecting part (222) connected with the first body part (221). The shielding piece (8) comprises a base (81) and a plurality of shielding parts (82) connected with the base (81), the plurality of shielding parts (82) are connected with the plurality of first body parts (221) correspondingly, and both sides of each shielding part (82) are provided with a bending part (83). The first cable (4) comprises a first core (41), the plurality of first cores (41) are connected with the plurality of first signal terminals (S1) correspondingly, and along the first direction (A1-A1), the first core (41) is located at least partially between two adjacent bending parts (83).

2. The line-to-board connector of claim 1, wherein, The bending part (83) extends from the shielding part (82) to a direction away from the first body part (221).

3. The line-to-board connector according to claim 1 or 2, characterized by Along a third direction (A3-A3) perpendicular to the first direction (A1-A1), the height of the bending part (83) is h1, and the diameter of the first core (41) is d, wherein h1 >= d.

4. The connector of claim 1, wherein The shielding part (82) comprises a flat part (821) and an inclined part (822), the inclined part (822) connects the flat part (821) with the base (81), the inclined part (822) extends from the flat part (821) to a direction away from the first body part (221), the flat part (821) is connected with the first body part (221), and the bending part (83) is connected with the flat part (821).

5. The line-to-board connector of claim 4, wherein, Along the third direction (A3-A3) perpendicular to the first direction (A1-A1), the height of the bending part (83) is h1, and the height of the inclined part (822) is h2, wherein h1 < h2.

6. The line-to-board connector of claim 4, wherein, The first terminal module (2) comprises a first insulating block (24), the plurality of first signal terminals (S1) and the plurality of first ground terminals (G1) are arranged on the first insulating block (24), the first insulating block (24) comprises a first surface (241) and a plurality of convex blocks (242) convexly arranged on the first surface (241), and a positioning groove (243) for positioning the inclined part (822) is formed between every two adjacent convex blocks (242).

7. The line-to-board connector of claim 1, wherein The first cable (4) comprises a first insulation layer (42) wrapped outside the first core (41), a first shielding layer (43) wrapped outside the first insulation layer (42), and a first insulation skin (44) sleeved outside the first shielding layer (43), the first core (41) comprises a connecting part (411) exposed outside the first insulation layer (42), the connecting part (411) is welded and fixed with the first signal terminal (S1), and the length of the bending part (83) is greater than the length of the connecting part (411) along a second direction (A2-A2) perpendicular to the first direction (A1-A1).

8. The line-to-board connector of claim 7, wherein, The first terminal module (2) comprises a first grounding sheet (23), the first grounding terminals (G1) are connected with the first grounding sheet (23), the first shielding layer (43) comprises a first section (431) exposed outside the first insulation skin (44), and the first section (431) is connected with the first grounding sheet (23).

9. The line-to-board connector of claim 8, wherein, The wire-to-board connector comprises a second terminal module (3), the second terminal module (3) comprises a plurality of second signal terminals (S2), a plurality of second grounding terminals (G2), and a second grounding sheet (33), every two second signal terminals (S2) form a second differential pair (DP2), the second differential pair (DP2) and the second grounding terminal (G2) are arranged alternately along the first direction (A1-A1), a plurality of second grounding terminals (G2) are connected with the second grounding sheet (33), the first shielding layer (43) comprises a second section (432) exposed outside the first insulation skin (44), and the second section (432) is connected with the second grounding sheet (33).

10. The line-to-board connector of claim 9, wherein, The wire-to-board connector comprises a plurality of second cables (5), the second cable (5) comprises a second core (51), a second insulation layer (52) wrapped outside the second core (51), and a second shielding layer (53) wrapped outside the second insulation layer (52), the second core (51) is connected with the second signal terminal (S2), and the second shielding layer (53) is connected with the second grounding sheet (33).

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