Electrical connector

Abstract

The present invention provides an electrical connector that features an improved shielding effect at the first contact portion of the first conductive terminal. [Solution] The electrical connector includes a mounting housing and a first terminal module. The first terminal module includes a first signal terminal S1, a second signal terminal S2, a first ground terminal G1, and a second ground terminal G2. Each first conductive terminal includes a first contact elastic arm 411, the first contact elastic arm is provided with a first arc-shaped end 4111. The height of the first arc-shaped end of the first ground terminal is higher than the height of the first arc-shaped end of the first signal terminal, the height of the first arc-shaped end of the first ground terminal is higher than the height of the first arc-shaped end of the second signal terminal, the height of the first arc-shaped end of the second ground terminal is higher than the height of the first arc-shaped end of the first signal terminal, and the height of the first arc-shaped end of the second ground terminal is higher than the height of the first arc-shaped end of the second signal terminal.

Description

Technical Field

[0001] Cross - reference to Related Applications This invention claims the priority of a Chinese patent application with the application number 202411678942.5 and the invention title "Electrical Connector", which was filed on November 21, 2024. The relevant content of the Chinese patent application is incorporated herein by reference. This invention relates to an electrical connector and belongs to the technical field of electrical connectors.

Background Art

[0002] An electrical connector in the related art usually includes a mounting housing and a plurality of terminal modules attached to the mounting housing. The terminal module includes a plurality of conductive terminals, and the plurality of conductive terminals include a first signal terminal, a second signal terminal, a first ground terminal located on one side of the first signal terminal and the second signal terminal, and a second ground terminal located on the other side of the first signal terminal and the second signal terminal. Each conductive terminal includes a contact elastic arm, and the contact elastic arm is provided with an arc - shaped end. The arc - shaped end is provided with a contact portion configured to protrude into the accommodation slot of the mounting housing and contact the docking module.

[0003] However, how to optimize the design of the contact portion of the conductive terminal to improve the quality of signal transmission is a technical problem faced by those skilled in the art.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The object of the present invention is to provide an electrical connector with an improved shielding effect at the first contact portion of the first conductive terminal.

Means for Solving the Problems

[0005] To achieve the above object, the present invention adopts the following technical solutions. It is an electrical connector, A mounting housing is provided with a housing slot extending in a first direction, and the housing slot is configured to accommodate a docking module. The mounting housing is provided directly or indirectly with a plurality of first conductive terminals, the plurality of first conductive terminals including a first signal terminal, a second signal terminal, a first ground terminal located on one side of the first signal terminal and the second signal terminal, and a second ground terminal located on the other side of the first signal terminal and the second signal terminal, the first ground terminal, the first signal terminal, the second signal terminal, and the second ground terminal are arranged in order in a second direction, and each first conductive terminal includes a first contact elastic arm, the first contact elastic arm is provided with a first arc-shaped end, the first arc-shaped end is provided with a first contact portion configured to protrude into the housing slot and contact the docking module, the terminal includes a first terminal module, The size of the first arc-shaped end of the first grounding terminal along the third direction is greater than the size of the first arc-shaped end of the first signal terminal along the third direction, the size of the first arc-shaped end of the first grounding terminal along the third direction is greater than the size of the first arc-shaped end of the second signal terminal along the third direction, the size of the first arc-shaped end of the second grounding terminal along the third direction is greater than the size of the first arc-shaped end of the first signal terminal along the third direction, the size of the first arc-shaped end of the second grounding terminal along the third direction is greater than the size of the first arc-shaped end of the second signal terminal along the third direction, The first, second, and third directions are perpendicular to each other.

[0006] As a further improved technical solution of the present invention, the size of the first contact elastic arm of the first grounding terminal along the third direction is greater than the size of the first contact elastic arm of the first signal terminal along the third direction, the size of the first contact elastic arm of the first grounding terminal along the third direction is greater than the size of the first contact elastic arm of the second signal terminal along the third direction, the size of the first contact elastic arm of the second grounding terminal along the third direction is greater than the size of the first contact elastic arm of the first signal terminal along the third direction, and the size of the first contact elastic arm of the second grounding terminal along the third direction is greater than the size of the first contact elastic arm of the second signal terminal along the third direction.

[0007] As a further improved technical solution of the present invention, the first grounding terminal and the second grounding terminal are both manufactured by a punching method, and the first signal terminal and the second signal terminal are both manufactured by a press method.

[0008] As a further improved technical solution of the present invention, the first contact portion of the first signal terminal and the first contact portion of the second signal terminal are flush with each other, and the first contact portion of the first ground terminal and the first contact portion of the second ground terminal are flush with each other. The first contact portion of the first signal terminal and the first contact portion of the second signal terminal protrude along the third direction from the first contact portion of the first ground terminal and the first contact portion of the second ground terminal, thereby causing both the first contact portion of the first signal terminal and the first contact portion of the second signal terminal to protrude further into the housing slot than the first contact portion of the first ground terminal and the first contact portion of the second ground terminal.

[0009] As a further improved technical solution of the present invention, each first conductive terminal includes a first connection portion, The first connection portion of the first grounding terminal and the first connection portion of the second grounding terminal each include a first fixed portion and at least one first protruding portion protruding from the first fixed portion. The electrical connector includes a first shield sheet, the first shield sheet is provided with a first substrate portion that shields the first connection portion, the first shield sheet does not come into contact with the first signal terminal and the second signal terminal, the first substrate portion is provided with at least one first mounting hole, and the first protrusion engages with the first mounting hole.

[0010] As a further improved technical solution of the present invention, each first conductive terminal includes a first inclined portion connected to the first connection portion, The first inclined portion of the first grounding terminal and the first inclined portion of the second grounding terminal each include a second fixing portion and at least one first projection protruding from the second fixing portion. The first shield sheet is provided with a first shielding portion that shields the first inclined portion, and the first shielding portion is provided with at least one first fixing hole, and the first projection fits into the first fixing hole. As a further improved technical solution of the present invention, each first conductive terminal includes a second inclined portion connected between the first contact elastic arm and the first connecting portion, The first shield sheet is provided with a first extension portion and a second extension portion connected to the first substrate portion, the first extension portion contacting the second inclined portion of the first grounding terminal, and the second extension portion contacting the second inclined portion of the second grounding terminal.

[0011] As a further improved technical solution of the present invention, the first shield sheet is further provided with a first transverse beam connecting the first extended portion and the second extended portion, and both the first extended portion and the second extended portion extend beyond the first transverse beam.

[0012] As a further improved technical solution of the present invention, each first conductive terminal includes a first tail portion, the first tail portion is configured to be attached to a circuit board, The size of the first tail portion of the first grounding terminal along the third direction is larger than the size of the first tail portion of the first signal terminal along the third direction, the size of the first tail portion of the first grounding terminal along the third direction is larger than the size of the first tail portion of the second signal terminal along the third direction, the size of the first tail portion of the second grounding terminal along the third direction is larger than the size of the first tail portion of the first signal terminal along the third direction, and the size of the first tail portion of the second grounding terminal along the third direction is larger than the size of the first tail portion of the second signal terminal along the third direction.

[0013] As a further improved technical solution of the present invention, the first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact elastic arm extends protruding from the first insulating block. The electrical connector further includes a first fixed retaining block fixed to the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal, the first fixed retaining block being provided with a first base portion and a first support portion extending from the first base portion, the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal being at least partially fixed to the first base portion, and the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal being at least partially exposed to and supported by the first support portion.

[0014] As a further improved technical solution of the present invention, the first fixed holding block includes a first positioning block and a second positioning block, each extending from the first support in the third direction, wherein the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal are restricted between the first positioning block and the second positioning block, the first positioning block restricts the first contact elastic arm of the first signal terminal by abutting against it, and the second positioning block restricts the first contact elastic arm of the second signal terminal by abutting against it.

[0015] As a further improved technical solution of the present invention, the first terminal module further includes a first grounding sheet fixed to the first fixed retaining block, the first grounding sheet having a first opening that engages with the first fixed retaining block, and the first grounding sheet is in contact with the first grounding terminal and the second grounding terminal.

[0016] As a further improved technical solution of the present invention, the first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact elastic arm extends protruding from the first insulating block. The first terminal module further includes a plurality of second conductive terminals, the plurality of second conductive terminals including a third signal terminal, a fourth signal terminal, a third ground terminal located on one side of the third signal terminal and the fourth signal terminal, and a fourth ground terminal located on the other side of the third signal terminal and the fourth signal terminal, the third ground terminal, the third signal terminal, the fourth signal terminal, and the fourth ground terminal are arranged in the second direction, each second conductive terminal includes a second contact elastic arm, the second contact elastic arm is provided with a second arc-shaped end, the second arc-shaped end is provided with a second contact portion configured to protrude into the housing slot and contact the docking module, the second conductive terminal is fixed to the first insulating block, and the second contact elastic arm extends protruding from the first insulating block. The first contact portion of the first conductive terminal is arranged as a first row along the second direction, the second contact portion of the second conductive terminal is arranged as a second row along the second direction, and the first row and the second row are provided at intervals along the first direction.

[0017] As a further improved technical solution of the present invention, both the third ground terminal and the fourth ground terminal are manufactured by a punching method, and both the third signal terminal and the fourth signal terminal are manufactured by a pressing method.

[0018] As a further improved technical solution of the present invention, the second contact portions of the third signal terminal and the second contact portions of the fourth signal terminal are flush, and the second contact portions of the third ground terminal and the second contact portions of the fourth ground terminal are flush. The second contact portions of the third signal terminal and the second contact portions of the fourth signal terminal protrude from the second contact portions of the third ground terminal and the second contact portions of the fourth ground terminal along the third direction, so that the second contact portions of the third signal terminal and the second contact portions of the fourth signal terminal both protrude further into the accommodation slot than the second contact portions of the third ground terminal and the second contact portions of the fourth ground terminal.

[0019] As a further improved technical solution of the present invention, each second conductive terminal includes a third inclined portion. The third inclined portions of the third ground terminal and the third inclined portions of the fourth ground terminal both include a second fixing portion and at least one second protruding portion protruding from the second fixing portion. The electrical connector includes a second shield sheet, a second substrate portion for shielding the third inclined portion is provided on the second shield sheet, the second shield sheet does not contact the third signal terminal and the fourth signal terminal, at least one second mounting hole is provided on the second substrate portion, and the second protruding portion fits into the second mounting hole.

[0020] As a further improved technical solution of the present invention, the electrical connector further includes a second fixed holding block fixed to the second contact elastic arm of the third signal terminal and the second contact elastic arm of the fourth signal terminal. The second contact elastic arms of the third signal terminal and the second contact elastic arm of the fourth signal terminal protrude and extend from the second fixed holding block. The first terminal module further includes a second grounding sheet fixed to the second fixed holding block. The second grounding sheet is provided with a second opening engaged with the second fixed holding block. The second grounding sheet contacts the third grounding terminal and the fourth grounding terminal.

Effects of the Invention

[0021] Compared with the prior art, in the electrical connector of the present invention, the size of the first arc-shaped end of the first grounding terminal along the third direction is larger than the size of the first arc-shaped end of the first signal terminal along the third direction, and the size of the first arc-shaped end of the first grounding terminal along the third direction is larger than the size of the first arc-shaped end of the second signal terminal along the third direction. The size of the first arc-shaped end of the second grounding terminal along the third direction is larger than the size of the first arc-shaped end of the first signal terminal along the third direction, and the size of the first arc-shaped end of the second grounding terminal along the third direction is larger than the size of the first arc-shaped end of the second signal terminal along the third direction. By configuring like this, on both sides of the first arc-shaped end of the first signal terminal and the first arc-shaped end of the second signal terminal, the first arc-shaped end of the first grounding terminal and the first arc-shaped end of the second grounding terminal with relatively high heights are provided, which is beneficial to improving the quality of signal transmission.

Brief Description of the Drawings

[0022] [Figure 1] It is a perspective schematic view of a connector module in an embodiment of the present invention. [Figure 2] It is a partially exploded perspective view of FIG. 1. [Figure 3] It is a partially exploded perspective view from another angle of FIG. 2. [Figure 4] This is a partially exploded perspective view of an electrical connector with a separate mounting housing, according to the present invention. [Figure 5] Figure 4 is a partially exploded perspective view from a different angle. [Figure 6] This is a magnified view of section B, enclosed in a circle in Figure 5. [Figure 7] Figure 4 is an exploded perspective view of the first and second terminal modules. [Figure 8] Figure 7 is a partially exploded perspective view from a different angle. [Figure 9] This is a right side view of Figure 7. [Figure 10] This is a rear view of Figure 7. [Figure 11] Figure 7 is a partially exploded perspective view of the first terminal module. [Figure 12] Figure 11 is a partially exploded perspective view from a different angle. [Figure 13] Figure 7 is a partially exploded perspective view of the second terminal module. [Figure 14] Figure 13 is a partially decomposed perspective view from a different angle. [Figure 15] Figure 7 is a schematic partial perspective view showing the first and second insulating blocks removed. [Figure 16] This is a schematic partial perspective view from a different angle than Figure 15. [Figure 17] Figure 11 is a further exploded perspective view. [Figure 18] Figure 17 is an exploded perspective view from a different angle. [Figure 19] Figure 13 is a further exploded perspective view. [Figure 20] Figure 19 is an exploded perspective view from a different angle. [Figure 21] Figure 17 is a schematic perspective view of the first conductive terminal module. [Figure 22] Figure 21 is an exploded perspective view. [Figure 23] Figure 17 is a schematic perspective view of the second conductive terminal module. [Figure 24] Figure 23 is an exploded perspective view. [Figure 25] Figure 19 is a schematic perspective view of the third conductive terminal module. [Figure 26] Figure 19 is a schematic perspective view of the fourth conductive terminal module. [Figure 27] This is a top view of Figure 21. [Figure 28] Figure 17 is a schematic perspective view of the first ground terminal, first signal terminal, second signal terminal, and second ground terminal. [Figure 29] This is a magnified view of section C, enclosed in a circle in Figure 28. [Figure 30] Figure 29 shows the right side view of the second signal terminal, the first signal terminal, and the first ground terminal, which are circled in the image. [Figure 31] Figure 29 shows the left side view of the first signal terminal, the second signal terminal, and the second ground terminal, which are circled in the image. [Figure 32] This is a right-side view of the area enclosed by the circle in Figure 29, showing the first ground terminal, first signal terminal, second signal terminal, and second ground terminal separated from each other. [Figure 33] This is a schematic view of the DD arrow in Figure 1, showing the docking module not inserted into the electrical connector. [Modes for carrying out the invention]

[0023] Hereinafter, exemplary specific embodiments of the present invention will be described in detail with reference to the drawings. Where multiple specific embodiments exist, the features of these embodiments may be combined with each other, provided they do not contradict each other. Where the description refers to the drawings, the same numbers in different drawings indicate the same or similar elements unless otherwise specified. The contents described in the following exemplary specific embodiments do not represent all embodiments conforming to the present invention. Rather, they are merely examples of apparatus, products and the / or methods that correspond to the claims of the present invention and some aspects of the present invention.

[0024] The terms used in this invention are for the sole purpose of describing specific embodiments and are not intended to limit the scope of protection of this invention. The singular forms "one kind," "the said," and "the said" used in the specification and claims of this invention are intended to include the plural form unless the context clearly indicates a different meaning.

[0025] It should be understood that terms such as “first,” “second,” and similar terms used in the specification and claims of this invention do not indicate order, quantity, or importance, but are merely names used to distinguish features. Similarly, similar words such as “one” or “one” do not imply a limitation of quantity, but mean that there is at least one. In this invention, unless otherwise noted, similar words such as “front,” “back,” “up,” and “down” are used solely for explanatory convenience and are not limited to a specific location or spatial orientation. Similar terms such as “equipment” or “contains” are open expressions meaning that the element appearing before “equipment” or “contains” includes the element appearing after “equipment” or “contains” and its equivalents, and this does not preclude the possibility that the element appearing before “equipment” or “contains” may also include other elements. In this invention, where “plural” is present, it means two or more.

[0026] As shown in Figures 1 to 3, the present invention discloses a connector assembly comprising a circuit board 300, an electrical connector 100 attached to the circuit board 300, and a docking module 200 configured to be plugged into the electrical connector 100.

[0027] As shown in Figure 2, in the embodiment illustrated in the present invention, the circuit board 300 includes a plurality of conductive sheets exposed on one surface thereof, the conductive sheets including a first conductive sheet 301 arranged as a first row, a second conductive sheet 302 arranged as a second row, a third conductive sheet 303 arranged as a third row, and a fourth conductive sheet 304 arranged as a fourth column. In the embodiment illustrated in the present invention, the first conductive sheet 301, the second conductive sheet 302, the third conductive sheet 303, and the fourth conductive sheet 304 are arranged with spacing along a first direction A1-A1 (for example, the front-to-back direction).

[0028] The docking module 200 is provided with a tongue plate 201, and the tongue plate 201 is provided with a plurality of conductive contact pieces 202. In the embodiment illustrated in the present invention, the conductive contact pieces 202 are exposed on two opposing surfaces of the tongue plate 201.

[0029] As shown in Figures 2 to 33, in the embodiments illustrated in the present invention, the electrical connector 100 includes a mounting housing 1, a first terminal module M1 directly or indirectly provided on the mounting housing 1, and a second terminal module M2 directly or indirectly provided on the mounting housing 1. In the embodiments illustrated in the present invention, both the first terminal module M1 and the second terminal module M2 are directly attached to the mounting housing 1.

[0030] In one embodiment of the present invention, the mounting housing 1 is made of an insulating material. The mounting housing 1 is provided with a docking surface 11, a housing slot 110 that penetrates the docking surface 11 along the first direction A1-A1, an assembly surface 12 opposite to the docking surface 11, and a mounting space 120 that penetrates the assembly surface 12 along the first direction A1-A1. The housing slot 110 is configured to accommodate the docking module 200.

[0031] In the embodiment illustrated in the present invention, the first terminal module M1 includes a first insulating block 40, a plurality of first conductive terminals 41, a plurality of second conductive terminals 42, a first shield sheet 43, a second shield sheet 44, a first ground sheet 45, and a second ground sheet 46.

[0032] The first insulating block 40 includes a main body portion 401, a first inclined wall 402 extending inclined from the first main body portion 401, a second inclined wall 403 extending inclined from the first main body portion 401 and parallel to the first inclined wall 402, and a reinforcing wall 404 connecting the first inclined wall 402 and the second inclined wall 403.

[0033] The plurality of first conductive terminals 41 include a first signal terminal S1, a second signal terminal S2, a first ground terminal G1 located on one side of the first signal terminal S1 and the second signal terminal S2, and a second ground terminal G2 located on the other side of the first signal terminal S1 and the second signal terminal S2. The first ground terminal G1, the first signal terminal S1, the second signal terminal S2, and the second ground terminal G2 are arranged in order in a second direction A2-A2 (for example, left-right direction). In one embodiment of the present invention, the first signal terminal S1 and the second signal terminal S2 constitute a first differential pair DP1, thereby improving the speed of signal transmission.

[0034] Each first conductive terminal 41 includes a first contact elastic arm 411, a first connecting portion 412, a first inclined portion 413 connected to the first connecting portion 412, a second inclined portion 414 connected between the first contact elastic arm 411 and the first connecting portion 412, and a first tail portion 415 extending from the first inclined portion 413. The first contact elastic arm 411 is provided with a first arc-shaped end portion 4111, and the first arc-shaped end portion 4111a is provided on the first arc-shaped end portion 4111a which protrudes into the housing slot 110 and is configured to contact the docking module 200 and be electrically connected.

[0035] In the embodiments illustrated in the present invention, the height of the first arc-shaped end 4111 of the first grounding terminal G1 along the third direction A3-A3 (for example, the vertical direction) is greater than the size of the first arc-shaped end 4111 of the first signal terminal S1 along the third direction A3-A3, and the size of the first arc-shaped end 4111 of the first grounding terminal G1 along the third direction A3-A3 is greater than the size of the first arc-shaped end 4111 of the second signal terminal S2 along the third direction A3-A3. The size of the first arc-shaped end 4111 of the second grounding terminal G2 along the third direction A3-A3 is larger than the size of the first arc-shaped end 4111 of the first signal terminal S1 along the third direction A3-A3, and the size of the first arc-shaped end 4111 of the second grounding terminal G2 along the third direction A3-A3 is larger than the size of the first arc-shaped end 4111 of the second signal terminal S2 along the third direction A3-A3. By configuring it in this way, the first arc-shaped end 4111 of the first grounding terminal G1 and the first arc-shaped end 4111 of the second grounding terminal G2, which are relatively tall, are provided on both sides of the first arc-shaped end 4111 of the first signal terminal S1 and the first arc-shaped end 4111 of the second signal terminal S2, which is beneficial for improving the quality of signal transmission. In the embodiments illustrated in the present invention, the first direction A1-A1, the second direction A2-A2, and the third direction A3-A3 are perpendicular to each other.

[0036] In the embodiments illustrated in the present invention, the size of the first contact elastic arm 411 of the first grounding terminal G1 along the third direction A3-A3 is larger than the size of the first contact elastic arm 411 of the first signal terminal S1 along the third direction A3-A3, the size of the first contact elastic arm 411 of the first grounding terminal G1 along the third direction A3-A3 is larger than the size of the first contact elastic arm 411 of the second signal terminal S2 along the third direction A3-A3, the size of the first contact elastic arm 411 of the second grounding terminal G2 along the third direction A3-A3 is larger than the size of the first contact elastic arm 411 of the first signal terminal S1 along the third direction A3-A3, and the size of the first contact elastic arm 411 of the second grounding terminal G2 along the third direction A3-A3 is larger than the size of the first contact elastic arm 411 of the second signal terminal S2 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the first contact elastic arm 411 of the first ground terminal G1 and the first contact elastic arm 411 of the second ground terminal G2, which are relatively tall, are provided on both sides in the longitudinal direction of the first contact elastic arm 411 of the first signal terminal S1 and the first contact elastic arm 411 of the second signal terminal S2.

[0037] In the embodiments illustrated in this invention, both the first grounding terminal G1 and the second grounding terminal G2 are manufactured by a punching method. As those skilled in the art will understand, the so-called "punching method" means that the width of the terminals of the first grounding terminal G1 and the second grounding terminal G2 along the second direction A2-A2 is the same as the width of the strip material. In other words, if it is necessary to widen the width of the terminals of the first grounding terminal G1 and the second grounding terminal G2 along the second direction A2-A2, it is necessary to use a wider strip material accordingly.

[0038] Both the first signal terminal S1 and the second signal terminal S2 are manufactured by a press method. As those skilled in the art will understand, the so-called "press method" means that the first signal terminal S1 and the second signal terminal S2 are pressed from the same metal sheet material, and the width of the first signal terminal S1 and the second signal terminal S2 can be pressed from the metal sheet material as needed, and the width of the first signal terminal S1 and the second signal terminal S2 is not affected by the thickness of the metal sheet material.

[0039] Of course, as those skilled in the art will understand, the first contact elastic arms 411 of the first grounding terminal G1 and the second grounding terminal G2 manufactured by the punching method are more rigid than the first contact elastic arms 411 of the first signal terminal S1 and the second signal terminal S2 manufactured by the pressing method. In other words, the first contact elastic arms 411 of the first grounding terminal G1 and the second grounding terminal G2 manufactured by the punching method are less elastically deformable than the first contact elastic arms 411 of the first signal terminal S1 and the second signal terminal S2 manufactured by the pressing method.

[0040] In the embodiment illustrated in the present invention, the first contact portion 4111a of the first signal terminal S1 and the first contact portion 4111a of the second signal terminal S2 are flush with each other, and the first contact portion 4111a of the first ground terminal G1 and the first contact portion 4111a of the second ground terminal G2 are flush with each other.

[0041] The first contact portion 4111a of the first signal terminal S1 and the first contact portion 4111a of the second signal terminal S2 protrude downward along the third direction A3-A3 from the first contact portion 4111a of the first ground terminal G1 and the first contact portion 4111a of the second ground terminal G2, thereby causing both the first contact portion 4111a of the first signal terminal S1 and the first contact portion 4111a of the second signal terminal S2 to protrude further into the housing slot 110 than the first contact portion 4111a of the first ground terminal G1 and the first contact portion 4111a of the second ground terminal G2. By configuring it in this way, the first contact portion 4111a of the first grounding terminal G1 and the first contact portion 4111a of the second grounding terminal G2, which are not easily deformed elastically, are separated from the housing slot 110, thereby balancing the first grounding terminal G1 and the second grounding terminal G2, which are manufactured by the punching method, with the first signal terminal S1 and the second signal terminal S2, which are manufactured by the pressing method.

[0042] In the embodiments illustrated in the present invention, the first terminal module M1 further includes a first fixed retaining block 47 fixed to the first signal terminal S1 and the second signal terminal S2, thereby the first signal terminal S1, the second signal terminal S2, and the first fixed retaining block 47 constitute an integrated first terminal module TM1. In one embodiment of the present invention, the first contact elastic arm 411 of the first signal terminal S1 and the first contact elastic arm 411 of the second signal terminal S2 are both partially fitted into the first fixed retaining block 47.

[0043] Specifically, in the embodiment illustrated in the present invention, the first fixed holding block 47 is provided with a first base portion 471, a first support portion 472 extending from one end of the first base portion 471, and a first covering portion 473 extending from the other end of the first base portion 471. The first contact elastic arm 411 of the first signal terminal S1 and the first contact elastic arm 411 of the second signal terminal S2 are at least partially fixed to the first base portion 471, the first contact elastic arm 411 of the first signal terminal S1 and the first contact elastic arm 411 of the second signal terminal S2 are at least partially exposed to and supported by the first support portion 472, and the second inclined portion 414 of the first signal terminal S1 and the second inclined portion 414 of the second signal terminal S2 are at least partially fixed to the first covering portion 473.

[0044] In the embodiment illustrated in the present invention, the first fixed holding block 47 includes a first positioning block 474 and a second positioning block 475 that extend from the first support portion 472 in the third direction A3-A3, respectively, and the first contact elastic arm 411 of the first signal terminal S1 and the first contact elastic arm 411 of the second signal terminal S2 are restricted between the first positioning block 474 and the second positioning block 475, with the first positioning block 474 restricting the first contact elastic arm 411 of the first signal terminal S1 by abutting against it, and the second positioning block 475 restricting the first contact elastic arm 411 of the second signal terminal S2 by abutting against it.

[0045] In the embodiments illustrated in the present invention, the first connection portion 412 of the first grounding terminal G1 and the first connection portion 412 of the second grounding terminal G2 each include a first fixing portion 4121 and at least one first protruding portion 4122 protruding from the first fixing portion 4121. The first fixing portion 4121 of the first conductive terminal 41 is fixed to the first main body portion 401 of the first insulating block 40. In the embodiments illustrated in the present invention, the first fixing portion 4121 of the first grounding terminal G1 is provided with a first fixing projection 4121a fixed within the first insulating block 40, and the first fixing portion 4121 of the second grounding terminal G2 is provided with a second fixing projection 4121b fixed within the first insulating block 40.

[0046] Furthermore, the first inclined portion 413 of the first grounding terminal G1 and the first inclined portion 413 of the second grounding terminal G3 each include a second fixing portion 4131 and at least one first projection 4132 protruding from the second fixing portion 4131. The second fixing portion 4131 of the first conductive terminal 41 is fixed to the first inclined wall 402 of the first insulating block 40. In the embodiment illustrated in the present invention, the second fixing portion 4131 of the first grounding terminal G1 is provided with a third fixing projection 4131a fixed within the first insulating block 40, and the second fixing portion 4131 of the second grounding terminal G2 is provided with a fourth fixing projection 4131b fixed within the first insulating block 40.

[0047] The first shield sheet 43 is made of a metallic material and is provided with a first substrate portion 431 that shields the first connection portion 412, a first shielding portion 432 that shields the first inclined portion 413, a first extension portion 433 and a second extension portion 434 connected to the first substrate portion 431, and a first transverse beam 435 connecting the first extension portion 433 and the second extension portion 434. Both the first extension portion 433 and the second extension portion 434 extend beyond the first transverse beam 435. The first shield sheet 43 does not come into contact with the first signal terminal S1 and the second signal terminal S2, thereby preventing a short circuit. The first substrate portion 431 is provided with at least one first mounting hole 4311, and the first projection portion 4122 fits into the first mounting hole 4311. The first shielding portion 432 is provided with at least one first fixing hole 4321, and the first projection 4132 fits into the first fixing hole 4321. The first extension portion 433 is in contact with the second inclined portion 414 of the first grounding terminal G1, and the second extension portion 434 is in contact with the second inclined portion 414 of the second grounding terminal G2.

[0048] The first shield sheet 43 of the present invention substantially extends along the second inclined portion 414, the first connecting portion 412, and the first inclined portion 413 of the first conductive terminal 41, thereby ensuring that the portion above the first conductive terminal 41 is reliably shielded. In addition, first protrusions 4122 and first projections 4132 are provided, which prevent openings from remaining in the first shield sheet 43 that would affect shielding performance by penetrating the first shield sheet 43, which is beneficial in improving the quality of signal transmission.

[0049] The first tail portion 415 is configured to be attached to the circuit board 300. For example, the first tail portion 415 is fixed to the first conductive sheet 301 of the circuit board 300 by welding. The size of the first tail portion 415 of the first grounding terminal G1 along the third direction A3-A3 is larger than the size of the first tail portion 415 of the first signal terminal S1 along the third direction A3-A3, the size of the first tail portion 415 of the first grounding terminal G1 along the third direction A3-A3 is larger than the size of the first tail portion 415 of the second signal terminal S2 along the third direction A3-A3, the size of the first tail portion 415 of the second grounding terminal G2 along the third direction A3-A3 is larger than the size of the first tail portion 415 of the first signal terminal S1 along the third direction A3-A3, and the size of the first tail portion 415 of the second grounding terminal G2 along the third direction A3-A3 is larger than the size of the first tail portion 415 of the second signal terminal S2 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the first tail portion 415 of the first ground terminal G1 and the first tail portion 415 of the second ground terminal G2, which are relatively tall, are provided on both sides in the longitudinal direction of the first tail portion 415 of the first signal terminal S1 and the first tail portion 415 of the second signal terminal S2.

[0050] The first grounding sheet 45 is fixed to the first fixed retaining block 47, and the first grounding sheet 45 is provided with a first opening 451 that engages with the first fixed retaining block 47, and the first grounding sheet 45 is in contact with the first grounding terminal G1 and the second grounding terminal G2.

[0051] The plurality of second conductive terminals 42 include a third signal terminal S3, a fourth signal terminal S4, a third ground terminal G3 located on one side of the third signal terminal S3 and the fourth signal terminal S4, and a fourth ground terminal G4 located on the other side of the third signal terminal S3 and the fourth signal terminal S4. The third ground terminal G3, the third signal terminal S3, the fourth signal terminal S4, and the fourth ground terminal G4 are arranged in order in the second direction A2-A2. In one embodiment of the present invention, the third signal terminal S3 and the fourth signal terminal S4 constitute a second differential pair DP2, thereby improving the speed of signal transmission.

[0052] Each second conductive terminal 42 includes a second contact elastic arm 421, a second connecting portion 422 connected to the second contact elastic arm 421, a third inclined portion 423 connected to the second connecting portion 422, and a second tail portion 425 extending from the third inclined portion 423. The second contact elastic arm 421 is provided with a second arc-shaped end portion 4211, and the second arc-shaped end portion 4211a is provided on the second arc-shaped end portion 4211a which protrudes into the housing slot 110 and is configured to contact the docking module 200 and be electrically connected.

[0053] In the embodiments illustrated in the present invention, the size of the second arc-shaped end 4211 of the third grounding terminal G3 along the third direction A3-A3 is larger than the size of the second arc-shaped end 4211 of the third signaling terminal S3 along the third direction A3-A3, the size of the second arc-shaped end 4211 of the third grounding terminal G3 along the third direction A3-A3 is larger than the size of the second arc-shaped end 4211 of the fourth signaling terminal S4 along the third direction A3-A3, the size of the second arc-shaped end 4211 of the fourth grounding terminal G4 along the third direction A3-A3 is larger than the size of the second arc-shaped end 4211 of the third signaling terminal S3 along the third direction A3-A3, and the size of the second arc-shaped end 4211 of the fourth grounding terminal G4 along the third direction A3-A3 is larger than the size of the second arc-shaped end 4211 of the fourth signaling terminal S4 along the third direction A3-A3. This configuration is beneficial for improving the quality of signal transmission because the second arc-shaped ends 4211 of the third ground terminal G3 and the fourth ground terminal G4, which are relatively tall, are provided on both sides of the second arc-shaped ends 4211 of the third signal terminal S3 and the second arc-shaped ends 4211 of the fourth signal terminal S4.

[0054] In the embodiments illustrated in the present invention, the size of the second contact elastic arm 421 of the third grounding terminal G3 along the third direction A3-A3 is larger than the size of the second contact elastic arm 421 of the third signal terminal S3 along the third direction A3-A3, the size of the second contact elastic arm 421 of the third grounding terminal G3 along the third direction A3-A3 is larger than the size of the second contact elastic arm 421 of the fourth signal terminal S4 along the third direction A3-A3, the size of the second contact elastic arm 421 of the fourth grounding terminal G4 along the third direction A3-A3 is larger than the size of the second contact elastic arm 421 of the third signal terminal S3 along the third direction A3-A3, and the size of the second contact elastic arm 421 of the fourth grounding terminal G4 along the third direction A3-A3 is larger than the size of the second contact elastic arm 421 of the fourth signal terminal S4 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the second contact elastic arms 421 of the third ground terminal G3 and the fourth ground terminal G4, which are relatively tall, are provided on both sides in the longitudinal direction of the second contact elastic arm 421 of the third signal terminal S3 and the second contact elastic arm 421 of the fourth signal terminal S4.

[0055] In the embodiments illustrated in this invention, both the third grounding terminal G3 and the fourth grounding terminal G4 are manufactured by a punching method. As those skilled in the art will understand, the so-called "punching method" means that the width of the terminals of the third grounding terminal G3 and the fourth grounding terminal G4 along the second direction A2-A2 is the same as the width of the strip material. In other words, if it is necessary to widen the width of the terminals of the third grounding terminal G3 and the fourth grounding terminal G4 along the second direction A2-A2, it is necessary to use a wider strip material accordingly.

[0056] The third signal terminal S3 and the fourth signal terminal S4 are both manufactured by a press method. As those skilled in the art will understand, the so-called "press method" means that the third signal terminal S3 and the fourth signal terminal S4 are pressed from the same metal sheet, and the width of the third signal terminal S3 and the fourth signal terminal S4 can be pressed from the metal sheet as needed, and the width of the third signal terminal S3 and the fourth signal terminal S4 is not affected by the thickness of the metal sheet.

[0057] Of course, as those skilled in the art will understand, the second contact elastic arms 421 of the third grounding terminal G3 and the fourth grounding terminal G4 manufactured by the punching method are more rigid than the second contact elastic arms 421 of the third signal terminal S3 and the fourth signal terminal S4 manufactured by the press method. In other words, the second contact elastic arms 421 of the third grounding terminal G3 and the fourth grounding terminal G4 manufactured by the punching method are less elastically deformable than the second contact elastic arms 421 of the third signal terminal S3 and the fourth signal terminal S4 manufactured by the press method.

[0058] In the embodiment illustrated in the present invention, the second contact portion 4211a of the third signal terminal S3 and the second contact portion 4211a of the fourth signal terminal S4 are flush with each other, and the second contact portion 4211a of the third ground terminal G3 and the second contact portion 4211a of the fourth ground terminal G4 are flush with each other.

[0059] The second contact portion 4211a of the third signal terminal S3 and the second contact portion 4211a of the fourth signal terminal S4 protrude downward along the third direction A3-A3 from the second contact portion 4211a of the third ground terminal G3 and the second contact portion 4211a of the fourth ground terminal G4, thereby causing both the second contact portion 4211a of the third signal terminal S3 and the second contact portion 4211a of the fourth signal terminal S4 to protrude further into the housing slot 110 than the second contact portion 4211a of the third ground terminal G3 and the second contact portion 4211a of the fourth ground terminal G4. By configuring it in this way, the second contact portion 4211a of the third grounding terminal G3 and the second contact portion 4211a of the fourth grounding terminal G4, which are not easily deformed elastically, are separated from the housing slot 110, thereby balancing the third grounding terminal G3 and the fourth grounding terminal G4, which are manufactured by the punching method, with the third signal terminal S3 and the fourth signal terminal S4, which are manufactured by the pressing method.

[0060] In the embodiments illustrated in the present invention, the first terminal module M1 further includes a second fixed retaining block 48 fixed to the third signal terminal S3 and the fourth signal terminal S4, thereby the third signal terminal S3, the fourth signal terminal S4, and the second fixed retaining block 48 constitute an integrated second terminal module TM2. In one embodiment of the present invention, the second contact elastic arm 421 of the third signal terminal S3 and the second contact elastic arm 421 of the fourth signal terminal S4 are both partially fitted into the second fixed retaining block 48.

[0061] Specifically, in the embodiment illustrated in the present invention, the second fixed holding block 48 is provided with a second base portion 481 and a second support portion 482 extending from the second base portion 481. The second contact elastic arm 421 of the third signal terminal S3 and the second contact elastic arm 421 of the fourth signal terminal S4 are at least partially fixed to the second base portion 481, and the second contact elastic arm 421 of the third signal terminal S3 and the second contact elastic arm 421 of the fourth signal terminal S4 are at least partially exposed to and supported by the second support portion 482.

[0062] In the embodiments illustrated in the present invention, the second connection portion 422 of the third grounding terminal G3 and the second connection portion 422 of the fourth grounding terminal G4 both include a fifth fixing projection 422a. The second connection portion 422 of the second conductive terminal 42 is fixed to the first main body portion 401 of the first insulating block 40. The third grounding terminal G3 and the fourth grounding terminal G4 further include a sixth fixing projection 423a extending from the second tail portion 425 and fixed within the first insulating block 40.

[0063] Furthermore, the third inclined portion 423 of the third grounding terminal G3 and the third inclined portion 423 of the fourth grounding terminal G4 each include a third fixing portion 4231 and at least one second projection 4232 protruding from the third fixing portion 4231. The third fixing portion 4231 of the second conductive terminal 42 is fixed to the second inclined wall 403 of the first insulating block 40.

[0064] The second shield sheet 44 is made of a metal material and is provided with a second substrate portion 441 that shields the third inclined portion 423. The second shield sheet 44 does not come into contact with the third signal terminal S3 and the fourth signal terminal S4, thereby preventing a short circuit. The second substrate portion 441 is provided with at least one second mounting hole 4411, and the second projection 4232 fits into the second mounting hole 4411.

[0065] The second tail portion 425 is configured to be attached to the circuit board 300. For example, the second tail portion 425 is fixed to the second conductive sheet 302 of the circuit board 300 by welding. The size of the second tail portion 425 of the third grounding terminal G3 along the third direction A3-A3 is larger than the size of the second tail portion 425 of the third signaling terminal S3 along the third direction A3-A3, the size of the second tail portion 425 of the third grounding terminal G3 along the third direction A3-A3 is larger than the size of the second tail portion 425 of the fourth signaling terminal S4 along the third direction A3-A3, the size of the second tail portion 425 of the fourth grounding terminal G4 along the third direction A3-A3 is larger than the size of the second tail portion 425 of the third signaling terminal S3 along the third direction A3-A3, and the size of the second tail portion 425 of the fourth grounding terminal G4 along the third direction A3-A3 is larger than the size of the second tail portion 425 of the fourth signaling terminal S4 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the second tail portions 425 of the third ground terminal G3 and the fourth ground terminal G4, which are relatively tall, are provided on both sides in the longitudinal direction of the second tail portion 425 of the third signal terminal S3 and the second tail portion 425 of the fourth signal terminal S4.

[0066] The second grounding sheet 46 is fixed to the second fixing and holding block 48, and the second grounding sheet 46 is provided with a second opening 461 that engages with the second fixing and holding block 48, and the second grounding sheet 46 is in contact with the third grounding terminal G3 and the fourth grounding terminal G4.

[0067] In the embodiment illustrated in the present invention, the second terminal module M2 includes a second insulating block 50, a plurality of third conductive terminals 51, a plurality of fourth conductive terminals 52, a third shielding sheet 53, a fourth shielding sheet 54, a third grounding sheet 55, and a fourth grounding sheet 56.

[0068] The plurality of third conductive terminals 51 include a fifth signal terminal S5, a sixth signal terminal S6, a fifth ground terminal G5 located on one side of the fifth signal terminal S5 and the sixth signal terminal S6, and a sixth ground terminal G6 located on the other side of the fifth signal terminal S5 and the sixth signal terminal S6. The fifth ground terminal G5, the fifth signal terminal S5, the sixth signal terminal S6, and the sixth ground terminal G6 are arranged in order in the second direction A2-A2. In one embodiment of the present invention, the fifth signal terminal S5 and the sixth signal terminal S6 constitute a third differential pair DP3, thereby improving the speed of signal transmission.

[0069] Each third conductive terminal 51 includes a third contact elastic arm 511, a third connecting portion 512, a fourth inclined portion 514 connected between the third contact elastic arm 511 and the third connecting portion 512, and a third tail portion 515. The third contact elastic arm 511 is provided with a third arc-shaped end portion 5111, the third arc-shaped end portion 5111 is provided with a third contact portion 5111a that protrudes into the housing slot 110 and is configured to contact the docking module 200 and be electrically connected.

[0070] In the embodiments illustrated in the present invention, the size of the third arc-shaped end 5111 of the fifth grounding terminal G5 along the third direction A3-A3 is larger than the size of the third arc-shaped end 5111 of the fifth signaling terminal S5 along the third direction A3-A3, the size of the third arc-shaped end 5111 of the fifth grounding terminal G5 along the third direction A3-A3 is larger than the size of the third arc-shaped end 5111 of the sixth signaling terminal S6 along the third direction A3-A3, the size of the third arc-shaped end 5111 of the sixth grounding terminal G6 along the third direction A3-A3 is larger than the size of the third arc-shaped end 5111 of the fifth signaling terminal S5 along the third direction A3-A3, and the size of the third arc-shaped end 5111 of the sixth grounding terminal G6 along the third direction A3-A3 is larger than the size of the third arc-shaped end 5111 of the sixth signaling terminal S6 along the third direction A3-A3. This configuration is beneficial for improving the quality of signal transmission because the third arc-shaped end 5111 of the fifth ground terminal G5 and the third arc-shaped end 5111 of the sixth ground terminal G6, which are relatively tall, are provided on both sides of the third arc-shaped end 5111 of the fifth signal terminal S5 and the third arc-shaped end 5111 of the sixth signal terminal S6.

[0071] In the embodiments illustrated in the present invention, the size of the third contact elastic arm 511 of the fifth grounding terminal G5 along the third direction A3-A3 is larger than the size of the third contact elastic arm 511 of the fifth signal terminal S5 along the third direction A3-A3, the size of the third contact elastic arm 511 of the fifth grounding terminal G5 along the third direction A3-A3 is larger than the size of the third contact elastic arm 511 of the sixth signal terminal S6 along the third direction A3-A3, the size of the third contact elastic arm 511 of the sixth grounding terminal G6 along the third direction A3-A3 is larger than the size of the third contact elastic arm 511 of the fifth signal terminal S5 along the third direction A3-A3, and the size of the third contact elastic arm 511 of the sixth grounding terminal G6 along the third direction A3-A3 is larger than the size of the third contact elastic arm 511 of the sixth signal terminal S6 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the third contact elastic arm 511 of the fifth signal terminal G5 and the third contact elastic arm 511 of the sixth signal terminal G6, which are relatively tall, are provided on both sides in the longitudinal direction of the third contact elastic arm 511 of the fifth signal terminal S5 and the third contact elastic arm 511 of the sixth signal terminal S6.

[0072] In the embodiments illustrated in the present invention, both the fifth grounding terminal G5 and the sixth grounding terminal G6 are manufactured by a punching method. As those skilled in the art will understand, the so-called "punching method" means that the width of the terminals of the fifth grounding terminal G5 and the sixth grounding terminal G6 along the second direction A2-A2 is the same as the width of the strip material. In other words, if it is necessary to widen the width of the terminals of the fifth grounding terminal G5 and the sixth grounding terminal G6 along the second direction A2-A2, it is necessary to use a wider strip material accordingly.

[0073] Both the fifth signal terminal S5 and the sixth signal terminal S6 are manufactured by a press method. As those skilled in the art will understand, the so-called "press method" means that the fifth signal terminal S5 and the sixth signal terminal S6 are pressed from the same metal sheet material, and the width of the fifth signal terminal S5 and the sixth signal terminal S6 can be pressed from the metal sheet material as needed, and the width of the fifth signal terminal S5 and the sixth signal terminal S6 is not affected by the thickness of the metal sheet material.

[0074] Of course, as those skilled in the art will understand, the third contact elastic arms 511 of the fifth grounding terminal G5 and the sixth grounding terminal G6 manufactured by the punching method are more rigid than the third contact elastic arms 511 of the fifth signal terminal S5 and the sixth signal terminal S6 manufactured by the press method. In other words, the third contact elastic arms 511 of the fifth grounding terminal G5 and the sixth grounding terminal G6 manufactured by the punching method are less elastically deformable than the third contact elastic arms 511 of the fifth signal terminal S5 and the sixth signal terminal S6 manufactured by the press method.

[0075] In the embodiment illustrated in the present invention, the third contact portion 5111a of the fifth signal terminal S5 and the third contact portion 5111a of the sixth signal terminal S6 are flush with each other, and the third contact portion 5111a of the fifth ground terminal G5 and the third contact portion 5111a of the sixth ground terminal G6 are flush with each other.

[0076] The third contact portion 5111a of the fifth signal terminal S5 and the third contact portion 5111a of the sixth signal terminal S6 protrude upward along the third direction A3-A3 from the third contact portion 5111a of the fifth ground terminal G5 and the third contact portion 5111a of the sixth ground terminal G6, thereby causing both the third contact portion 5111a of the fifth signal terminal S5 and the third contact portion 5111a of the sixth signal terminal S6 to protrude further into the housing slot 110 than the third contact portion 5111a of the fifth ground terminal G5 and the third contact portion 5111a of the sixth ground terminal G6. By configuring it in this way, the third contact portion 5111a of the fifth grounding terminal G5 and the third contact portion 5111a of the sixth grounding terminal G6, which are not easily deformed elastically, are separated from the housing slot 110, thereby balancing the fifth grounding terminal G5 and the sixth grounding terminal G6, which are manufactured by the punching method, with the fifth signal terminal S5 and the sixth signal terminal S6, which are manufactured by the pressing method.

[0077] In the embodiments illustrated in the present invention, the second terminal module M2 further includes a third fixed retaining block 57 fixed to the fifth signal terminal S5 and the sixth signal terminal S6, thereby the fifth signal terminal S5, the sixth signal terminal S6, and the third fixed retaining block 57 form an integrated third terminal module TM3. In one embodiment of the present invention, the third contact elastic arm 511 of the fifth signal terminal S5 and the third contact elastic arm 511 of the sixth signal terminal S6 are both partially fitted into the third fixed retaining block 57.

[0078] Specifically, in the embodiment illustrated in the present invention, the third fixed holding block 57 is provided with a third base portion 571 and a third support portion 572 extending from one end of the third base portion 571. The third contact elastic arm 511 of the fifth signal terminal S5 and the third contact elastic arm 511 of the sixth signal terminal S6 are at least partially fixed to the third base portion 571, and the third contact elastic arm 511 of the fifth signal terminal S5 and the third contact elastic arm 511 of the sixth signal terminal S6 are at least partially exposed to and supported by the third support portion 572.

[0079] In the embodiments illustrated in the present invention, the third connection portion 512 of the fifth grounding terminal G5 and the third connection portion 512 of the sixth grounding terminal G6 each include a fourth fixing portion 5121 and at least one third protruding portion 5122 protruding from the fourth fixing portion 5121. The fourth fixing portion 5121 of the third conductive terminal 51 is fixed to the second insulating block 50.

[0080] The third shield sheet 53 is made of a metallic material and includes a third substrate portion 531 that shields the third connection portion 512, a third extension portion 533 and a fourth extension portion 534 connected to the third substrate portion 531, and a second transverse beam 535 connecting the third extension portion 533 and the fourth extension portion 534. Both the third extension portion 533 and the fourth extension portion 534 extend beyond the second transverse beam 535. The third shield sheet 53 does not come into contact with the fifth signal terminal S5 and the sixth signal terminal S6, thereby preventing a short circuit. The third substrate portion 531 is provided with at least one third mounting hole 5311, and the third projection portion 5122 fits into the third mounting hole 5311.

[0081] The third tail portion 515 is configured to be attached to the circuit board 300. For example, the third tail portion 515 is fixed to the third conductive sheet 303 of the circuit board 300 by welding. The size of the third tail portion 515 of the fifth grounding terminal G5 along the third direction A3-A3 is larger than the size of the third tail portion 515 of the fifth signaling terminal S5 along the third direction A3-A3, the size of the third tail portion 515 of the fifth grounding terminal G5 along the third direction A3-A3 is larger than the size of the third tail portion 515 of the sixth signaling terminal S6 along the third direction A3-A3, the size of the third tail portion 515 of the sixth grounding terminal G6 along the third direction A3-A3 is larger than the size of the third tail portion 515 of the fifth signaling terminal S5 along the third direction A3-A3, and the size of the third tail portion 515 of the sixth grounding terminal G6 along the third direction A3-A3 is larger than the size of the third tail portion 515 of the sixth signaling terminal S6 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the third tail portion 515 of the fifth ground terminal G5 and the third tail portion 515 of the sixth ground terminal G6, which are relatively tall, are provided on both sides in the longitudinal direction of the third tail portion 515 of the fifth signal terminal S5 and the third tail portion 515 of the sixth signal terminal S6.

[0082] The third grounding sheet 55 is fixed to the third fixing and holding block 57, and the third grounding sheet 55 is provided with a third opening 551 that engages with the third fixing and holding block 57, and the third grounding sheet 55 is in contact with the fifth grounding terminal G5 and the sixth grounding terminal G6.

[0083] The plurality of fourth conductive terminals 52 include a seventh signal terminal S7, an eighth signal terminal S8, a seventh ground terminal G7 located on one side of the seventh signal terminal S7 and the eighth signal terminal S8, and an eighth ground terminal G8 located on the other side of the seventh signal terminal S7 and the eighth signal terminal S8. The seventh ground terminal G7, the seventh signal terminal S7, the eighth signal terminal S8, and the eighth ground terminal G8 are arranged in order in the second direction A2-A2. In one embodiment of the present invention, the seventh signal terminal S7 and the eighth signal terminal S8 constitute a fourth differential pair DP4, thereby improving the speed of signal transmission.

[0084] Each fourth conductive terminal 52 includes a fourth contact elastic arm 521, a fourth connecting portion 522 connected to the fourth contact elastic arm 521, and a fourth tail portion 525. The fourth connecting portion 522 is substantially L-shaped. The fourth contact elastic arm 521 is provided with a fourth arc-shaped end portion 5211, and the fourth arc-shaped end portion 5211 is provided with a fourth contact portion 5211a that protrudes into the housing slot 110 and is configured to contact the docking module 200 and be electrically connected.

[0085] In the embodiments illustrated in the present invention, the size of the fourth arc-shaped end 5211 of the seventh grounding terminal G7 along the third direction A3-A3 is larger than the size of the fourth arc-shaped end 5211 of the seventh signaling terminal S7 along the third direction A3-A3, the size of the fourth arc-shaped end 5211 of the seventh grounding terminal G7 along the third direction A3-A3 is larger than the size of the fourth arc-shaped end 5211 of the eighth signaling terminal S8 along the third direction A3-A3, the size of the fourth arc-shaped end 5211 of the eighth grounding terminal G8 along the third direction A3-A3 is larger than the size of the fourth arc-shaped end 5211 of the seventh signaling terminal S7 along the third direction A3-A3, and the size of the fourth arc-shaped end 5211 of the eighth grounding terminal G8 along the third direction A3-A3 is larger than the size of the fourth arc-shaped end 5211 of the eighth signaling terminal S8 along the third direction A3-A3. This configuration is beneficial for improving the quality of signal transmission because the fourth arc-shaped end 5211 of the seventh signal terminal S7 and the fourth arc-shaped end 5211 of the eighth signal terminal S8 are each provided with relatively high fourth arc-shaped end 5211 of the seventh ground terminal G7 and the fourth arc-shaped end 5211 of the eighth ground terminal G8.

[0086] In the embodiments illustrated in the present invention, the size of the fourth contact elastic arm 521 of the seventh grounding terminal G7 along the third direction A3-A3 is larger than the size of the fourth contact elastic arm 521 of the seventh signaling terminal S7 along the third direction A3-A3, the size of the fourth contact elastic arm 521 of the seventh grounding terminal G7 along the third direction A3-A3 is larger than the size of the fourth contact elastic arm 521 of the eighth signaling terminal S8 along the third direction A3-A3, the size of the fourth contact elastic arm 521 of the eighth grounding terminal G8 along the third direction A3-A3 is larger than the size of the fourth contact elastic arm 521 of the seventh signaling terminal S7 along the third direction A3-A3, and the size of the fourth contact elastic arm 521 of the eighth grounding terminal G8 along the third direction A3-A3 is larger than the size of the fourth contact elastic arm 521 of the eighth signaling terminal S8 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the fourth contact elastic arm 521 of the seventh signal terminal S7 and the fourth contact elastic arm 521 of the eighth signal terminal S8, which are relatively tall, are provided on both sides in the longitudinal direction of the seventh signal terminal S7 and the eighth signal terminal S8, respectively.

[0087] In the embodiments illustrated in this invention, both the seventh grounding terminal G7 and the eighth grounding terminal G8 are manufactured by a punching method. As those skilled in the art will understand, the so-called "punching method" means that the width of the terminals of the seventh grounding terminal G7 and the eighth grounding terminal G8 along the second direction A2-A2 is the same as the width of the strip material. In other words, if it is necessary to widen the width of the terminals of the seventh grounding terminal G7 and the eighth grounding terminal G8 along the second direction A2-A2, it is necessary to use a wider strip material accordingly.

[0088] Both the seventh signal terminal S7 and the eighth signal terminal S8 are manufactured by a press method. As those skilled in the art will understand, the so-called "press method" means that the seventh signal terminal S7 and the eighth signal terminal S8 are pressed from the same metal sheet material, and the width of the seventh signal terminal S7 and the eighth signal terminal S8 can be pressed from the metal sheet material as needed, and the width of the seventh signal terminal S7 and the eighth signal terminal S8 is not affected by the thickness of the metal sheet material.

[0089] Of course, as those skilled in the art will understand, the fourth contact elastic arms 521 of the seventh grounding terminal G7 and the eighth grounding terminal G8, manufactured by a punching method, are more rigid than the fourth contact elastic arms 521 of the seventh signal terminal S7 and the eighth signal terminal S8, manufactured by a press method. In other words, the fourth contact elastic arms 521 of the seventh grounding terminal G7 and the eighth grounding terminal G8, manufactured by a punching method, are less elastically deformable than the fourth contact elastic arms 521 of the seventh signal terminal S7 and the eighth signal terminal S8, manufactured by a press method.

[0090] In the embodiment illustrated in the present invention, the fourth contact portion 5211a of the seventh signal terminal S7 and the fourth contact portion 5211a of the eighth signal terminal S8 are flush with each other, and the fourth contact portion 5211a of the seventh ground terminal G7 and the fourth contact portion 5211a of the eighth ground terminal G8 are flush with each other.

[0091] The fourth contact portion 5211a of the seventh signal terminal S7 and the fourth contact portion 5211a of the eighth signal terminal S8 protrude upward along the third direction A3-A3 from the fourth contact portion 5211a of the seventh ground terminal G7 and the fourth contact portion 5211a of the eighth ground terminal G8, thereby causing both the fourth contact portion 5211a of the seventh signal terminal S7 and the fourth contact portion 5211a of the eighth signal terminal S8 to protrude further into the housing slot 110 than the fourth contact portion 5211a of the seventh ground terminal G7 and the fourth contact portion 5211a of the eighth ground terminal G8. By configuring it in this way, the fourth contact portion 5211a of the seventh grounding terminal G7 and the fourth contact portion 5211a of the eighth grounding terminal G8, which are not easily deformed elastically, can be separated from the housing slot 110, thereby balancing with the seventh grounding terminal G7 and the eighth grounding terminal G8 manufactured by the punching method and the seventh signal terminal S7 and the eighth signal terminal S8 manufactured by the pressing method.

[0092] In the embodiments illustrated in the present invention, the second terminal module M2 further includes a fourth fixed retaining block 58 fixed to the seventh signal terminal S7 and the eighth signal terminal S8, thereby forming an integrated fourth terminal module TM4. In one embodiment of the present invention, the fourth contact elastic arm 521 of the seventh signal terminal S7 and the fourth contact elastic arm 521 of the eighth signal terminal S8 are both partially fitted into the fourth fixed retaining block 58.

[0093] Specifically, in the embodiment illustrated in the present invention, the fourth fixed holding block 58 is provided with a fourth base portion 581 and a fourth support portion 582 extending from the fourth base portion 581. The fourth contact elastic arm 521 of the seventh signal terminal S7 and the fourth contact elastic arm 521 of the eighth signal terminal S8 are at least partially fixed to the fourth base portion 581, and the fourth contact elastic arm 521 of the seventh signal terminal S7 and the fourth contact elastic arm 521 of the eighth signal terminal S8 are at least partially exposed to and supported by the fourth support portion 582.

[0094] Furthermore, both the fourth connection portion 522 of the seventh grounding terminal G7 and the fourth connection portion 522 of the eighth grounding terminal G8 include at least one fourth projection 5221.

[0095] The fourth shield sheet 54 is made of a metallic material and is provided with a fourth substrate portion 541 that shields the fourth connection portion 522. The fourth shield sheet 54 does not come into contact with the seventh signal terminal S7 and the eighth signal terminal S8, thereby preventing a short circuit. The fourth substrate portion 541 is provided with at least one fourth mounting hole 5411, and the fourth projection 5221 fits into the fourth mounting hole 5411.

[0096] The fourth tail portion 525 is configured to be attached to the circuit board 300. For example, the fourth tail portion 525 is fixed to the fourth conductive sheet 304 of the circuit board 300 by welding. The size of the fourth tail portion 525 of the seventh grounding terminal G7 along the third direction A3-A3 is larger than the size of the fourth tail portion 525 of the seventh signaling terminal S7 along the third direction A3-A3, the size of the fourth tail portion 525 of the seventh grounding terminal G7 along the third direction A3-A3 is larger than the size of the fourth tail portion 525 of the eighth signaling terminal S8 along the third direction A3-A3, the size of the fourth tail portion 525 of the eighth grounding terminal G8 along the third direction A3-A3 is larger than the size of the fourth tail portion 525 of the seventh signaling terminal S7 along the third direction A3-A3, and the size of the fourth tail portion 525 of the eighth grounding terminal G8 along the third direction A3-A3 is larger than the size of the fourth tail portion 525 of the eighth signaling terminal S8 along the third direction A3-A3. This configuration is beneficial in further improving the quality of signal transmission because the fourth tail portion 525 of the seventh signal terminal S7 and the fourth tail portion 525 of the eighth signal terminal S8, which are relatively tall, are provided on both sides in the longitudinal direction of the fourth tail portion 525 of the seventh signal terminal S7 and the fourth tail portion 525 of the eighth signal terminal S8.

[0097] The fourth grounding sheet 56 is fixed to the fourth fixing and holding block 58, and the fourth grounding sheet 56 is provided with a fourth opening 561 that engages with the fourth fixing and holding block 58, and the fourth grounding sheet 56 is in contact with the seventh grounding terminal G7 and the eighth grounding terminal G8.

[0098] The first contact portion 4111a of the first conductive terminal 41 is arranged along the second direction A2-A2 to form the first row L1, and the second contact portion 4211a of the second conductive terminal 42 is arranged along the second direction A2-A2 to form the second row L2, and the first row L1 and the second row L2 are spaced apart along the first direction A1-A1. Similarly, the third contact portion 5111a of the third conductive terminal 51 is arranged along the second direction A2-A2 to form the first row L1, and the fourth contact portion 5211a of the fourth conductive terminal 52 is arranged along the second direction A2-A2 to form the second row L2, and the first row L1 and the second row L2 are spaced apart along the first direction A1-A1.

[0099] The embodiments described above are for illustrative purposes only and do not limit the technical solutions described in the present invention. Understanding of the present invention should be based on those skilled in the art. Although the present invention has been described in detail with reference to the embodiments described above, those skilled in the art should understand that modifications or equivalent substitutions of the present invention are possible, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included within the claims of the present invention.

Claims

1. It is an electrical connector, A mounting housing is provided with a housing slot extending in a first direction, and the housing slot is configured to accommodate a docking module. The mounting housing is provided directly or indirectly and includes a plurality of first conductive terminals, the plurality of first conductive terminals including a first signal terminal, a second signal terminal, a first ground terminal located on one side of the first signal terminal and the second signal terminal, and a second ground terminal located on the other side of the first signal terminal and the second signal terminal, the first ground terminal, the first signal terminal, the second signal terminal, and the second ground terminal are arranged in order in a second direction, and each first conductive terminal includes a first contact elastic arm, the first contact elastic arm is provided with a first arc-shaped end, and the first arc-shaped end is provided with a first contact portion configured to protrude into the housing slot and contact the docking module, The size of the first arc-shaped end of the first grounding terminal along the third direction is greater than the size of the first arc-shaped end of the first signal terminal along the third direction, the size of the first arc-shaped end of the first grounding terminal along the third direction is greater than the size of the first arc-shaped end of the second signal terminal along the third direction, the size of the first arc-shaped end of the second grounding terminal along the third direction is greater than the size of the first arc-shaped end of the first signal terminal along the third direction, the size of the first arc-shaped end of the second grounding terminal along the third direction is greater than the size of the first arc-shaped end of the second signal terminal along the third direction, An electrical connector characterized in that the first direction, the second direction, and the third direction are perpendicular to each other.

2. The electrical connector according to claim 1, characterized in that the size of the first contact elastic arm of the first grounding terminal along the third direction is larger than the size of the first contact elastic arm of the first signal terminal along the third direction, the size of the first contact elastic arm of the first grounding terminal along the third direction is larger than the size of the first contact elastic arm of the second signal terminal along the third direction, the size of the first contact elastic arm of the second grounding terminal along the third direction is larger than the size of the first contact elastic arm of the first signal terminal along the third direction, and the size of the first contact elastic arm of the second grounding terminal along the third direction is larger than the size of the first contact elastic arm of the second signal terminal along the third direction.

3. The electrical connector according to claim 1, characterized in that the first grounding terminal and the second grounding terminal are both manufactured by a punching method, and the first signal terminal and the second signal terminal are both manufactured by a press method.

4. The first contact portion of the first signal terminal and the first contact portion of the second signal terminal are flush with each other, and the first contact portion of the first ground terminal and the first contact portion of the second ground terminal are flush with each other. The electrical connector according to claim 1, characterized in that the first contact portion of the first signal terminal and the first contact portion of the second signal terminal protrude along the third direction from the first contact portion of the first ground terminal and the first contact portion of the second ground terminal, and thereby the first contact portion of the first signal terminal and the first contact portion of the second signal terminal both protrude further into the housing slot than the first contact portion of the first ground terminal and the first contact portion of the second ground terminal.

5. Each first conductive terminal includes a first connection portion. The first connection portion of the first grounding terminal and the first connection portion of the second grounding terminal each include a first fixed portion and at least one first protruding portion protruding from the first fixed portion. The electrical connector according to claim 1, wherein the electrical connector includes a first shielding sheet, the first shielding sheet is provided with a first substrate portion that shields the first connection portion, the first shielding sheet does not come into contact with the first signal terminal and the second signal terminal, the first substrate portion is provided with at least one first mounting hole, and the first protrusion engages with the first mounting hole.

6. Each first conductive terminal includes a first inclined portion connected to the first connection portion. The first inclined portion of the first grounding terminal and the first inclined portion of the second grounding terminal each include a second fixing portion and at least one first projection protruding from the second fixing portion. The electrical connector according to claim 5, characterized in that the first shield sheet is provided with a first shielding portion that shields the first inclined portion, the first shielding portion is provided with at least one first fixing hole, and the first projection engages with the first fixing hole.

7. Each first conductive terminal includes a second inclined portion connected between the first contact elastic arm and the first connecting portion. The electrical connector according to claim 5, wherein the first shield sheet is provided with a first extension portion and a second extension portion connected to the first substrate portion, the first extension portion contacts the second inclined portion of the first grounding terminal, and the second extension portion contacts the second inclined portion of the second grounding terminal.

8. The electrical connector according to claim 7, wherein the first shield sheet is further provided with a first transverse beam connecting the first extension portion and the second extension portion, and both the first extension portion and the second extension portion extend beyond the first transverse beam.

9. Each first conductive terminal includes a first tail portion, and the first tail portion is configured to be attached to a circuit board. The electrical connector according to claim 1, characterized in that the size of the first tail portion of the first grounding terminal along the third direction is larger than the size of the first tail portion of the first signal terminal along the third direction, the size of the first tail portion of the first grounding terminal along the third direction is larger than the size of the first tail portion of the second signal terminal along the third direction, the size of the first tail portion of the second grounding terminal along the third direction is larger than the size of the first tail portion of the first signal terminal along the third direction, and the size of the first tail portion of the second grounding terminal along the third direction is larger than the size of the first tail portion of the second signal terminal along the third direction.

10. The first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact elastic arm extends protruding from the first insulating block. The electrical connector further includes a first fixed retaining block fixed to the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal, wherein the first fixed retaining block is provided with a first base portion and a first support portion extending from the first base portion, the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal are at least partially fixed to the first base portion, and the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal are at least partially exposed to and supported by the first support portion, characterized in that the electrical connector according to claim 1.

11. The electrical connector according to claim 10, wherein the first fixed holding block includes a first positioning block and a second positioning block, each extending from the first support portion in the third direction, the first contact elastic arm of the first signal terminal and the first contact elastic arm of the second signal terminal are restricted between the first positioning block and the second positioning block, the first positioning block restricts the first contact elastic arm of the first signal terminal by abutting against it, and the second positioning block restricts the first contact elastic arm of the second signal terminal by abutting against it.

12. The electrical connector according to claim 11, wherein the first terminal module further includes a first grounding sheet fixed to the first fixed retaining block, the first grounding sheet is provided with a first opening that engages with the first fixed retaining block, and the first grounding sheet is in contact with the first grounding terminal and the second grounding terminal.

13. The first terminal module includes a first insulating block, the first conductive terminal is fixed to the first insulating block, and the first contact elastic arm extends protruding from the first insulating block. The first terminal module further includes a plurality of second conductive terminals, the plurality of second conductive terminals including a third signal terminal, a fourth signal terminal, a third ground terminal located on one side of the third signal terminal and the fourth signal terminal, and a fourth ground terminal located on the other side of the third signal terminal and the fourth signal terminal, the third ground terminal, the third signal terminal, the fourth signal terminal, and the fourth ground terminal are arranged in the second direction, each second conductive terminal includes a second contact elastic arm, the second contact elastic arm is provided with a second arc-shaped end, the second arc-shaped end is provided with a second contact portion configured to protrude into the housing slot and contact the docking module, the second conductive terminal is fixed to the first insulating block, and the second contact elastic arm extends protruding from the first insulating block. The electrical connector according to claim 1, characterized in that the first contact portions of the first conductive terminal are arranged as a first row along the second direction, the second contact portions of the second conductive terminal are arranged as a second row along the second direction, and the first row and the second row are spaced apart along the first direction.

14. The electrical connector according to claim 13, characterized in that the third grounding terminal and the fourth grounding terminal are both manufactured by a punching method, and the third signal terminal and the fourth signal terminal are both manufactured by a press method.

15. The second contact portion of the third signal terminal and the second contact portion of the fourth signal terminal are flush with each other, and the second contact portion of the third ground terminal and the second contact portion of the fourth ground terminal are flush with each other. The electrical connector according to claim 13, characterized in that the second contact portion of the third signal terminal and the second contact portion of the fourth signal terminal protrude along the third direction from the second contact portion of the third ground terminal and the second contact portion of the fourth ground terminal, and thereby both the second contact portion of the third signal terminal and the second contact portion of the fourth signal terminal protrude further into the housing slot than the second contact portion of the third ground terminal and the second contact portion of the fourth ground terminal.

16. Each second conductive terminal includes a third inclined portion, The third inclined portion of the third grounding terminal and the third inclined portion of the fourth grounding terminal each include a second fixed portion and at least one second protruding portion that protrudes from the second fixed portion. The electrical connector according to claim 13, wherein the electrical connector includes a second shielding sheet, the second shielding sheet is provided with a second substrate portion that shields the third inclined portion, the second shielding sheet does not come into contact with the third signal terminal and the fourth signal terminal, the second substrate portion is provided with at least one second mounting hole, and the second protrusion engages with the second mounting hole.

17. The electrical connector further includes a second fixed retaining block fixed to the second contact elastic arm of the third signal terminal and the second contact elastic arm of the fourth signal terminal, the second contact elastic arm of the third signal terminal and the second contact elastic arm of the fourth signal terminal extending outward from the second fixed retaining block. The electrical connector according to claim 13, wherein the first terminal module further includes a second grounding sheet fixed to the second fixed retaining block, the second grounding sheet is provided with a second opening that engages with the second fixed retaining block, and the second grounding sheet is in contact with the third grounding terminal and the fourth grounding terminal.

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