Electrical connector and connector assembly

Abstract

An electric connector comprises a mounting frame and a shielding module. The mounting frame comprises a base plate, a first wall and a mounting space. The inner side of the first wall is provided with a first mounting groove. The shielding module is at least partially accommodated in the mounting space. The shielding module comprises a shielding shell assembly and a plurality of terminal modules. The shielding shell assembly comprises a shielding side plate and a connecting plate. The connecting plate is attached to the shielding side plate. The shielding side plate comprises a plate body and a first tab at one end of the plate body. The connecting plate is provided with a base body and a first tab at one end of the base body. The first tab and the first tab are inserted into the first mounting groove together, thereby facilitating the improvement of the assembly structure. The utility model also discloses a connector assembly comprising the electric connector.

Description

Technical Field

[0001] This utility model relates to an electrical connector and a connector assembly, belonging to the field of connector technology. Background Technology

[0002] Connector assemblies in related technologies typically include an electrical connector and a mating connector that mates with the electrical connector. The electrical connector typically has a shielded cavity, and the mating connector typically has a shielding element that inserts into the shielded cavity.

[0003] There is still room for improvement in the electrical connectors used in related technologies. Utility Model Content

[0004] The purpose of this invention is to provide an electrical connector and connector assembly with an improved structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrical connector, comprising:

[0006] The mounting frame includes a base plate portion, a first wall portion connected to the base plate portion and located on a first side of the base plate portion, and a mounting space; the inner side of the first wall portion is provided with a first mounting groove, which communicates with the mounting space; and

[0007] A shielding module, at least partially housed in the installation space, the shielding module including a shielding housing assembly and a plurality of terminal modules, the shielding housing assembly including a plurality of shielding cavities, the terminal modules being at least partially housed in the shielding cavities;

[0008] The shielding housing assembly includes a shielding side plate and a connecting plate. The connecting plate is attached to the shielding side plate. The shielding side plate includes a plate body and a first insert portion located at one end of the plate body. The connecting plate has a base portion and a first protrusion portion located at one end of the base portion. The first protrusion portion and the first insert portion are inserted together into the first mounting groove.

[0009] As a further improvement of the present invention, the first wall portion is provided with a first locking hole that communicates with the first mounting groove.

[0010] The first insert portion is provided with a first retaining spring arm, and the first retaining spring arm is provided with a first locking protrusion;

[0011] The first protrusion is provided with a first locking spring arm, and the first locking spring arm is provided with a first fastening protrusion. The first fastening protrusion and the first locking protrusion are together locked and fixed in the first locking hole.

[0012] As a further improvement of the present invention, the mounting frame includes a second wall portion connected to the base plate portion and located on the second side of the base plate portion, and a second mounting groove is provided on the inner side of the second wall portion, and the second mounting groove is connected to the mounting space.

[0013] The shielding side plate includes a second insert portion located at the other end of the plate body portion; the connecting plate is provided with a second protrusion portion located at the other end of the base portion, and the second protrusion portion and the second insert portion are inserted together into the second mounting groove.

[0014] As a further improvement of the present invention, the second wall portion is provided with a second locking hole that communicates with the second mounting groove;

[0015] The second insert portion is provided with a second retaining arm, and the second retaining arm is provided with a second locking protrusion;

[0016] The second protrusion is provided with a second locking spring arm, and the second locking spring arm is provided with a second fastening protrusion. The second fastening protrusion and the second locking protrusion are together locked and fixed in the second locking hole.

[0017] As a further improvement of this utility model, the connecting plate is provided with abutment spring that elastically abuts against the shielding side plate.

[0018] As a further improvement of the present invention, the connecting plate is provided with a welding tail configured to be welded onto the circuit board.

[0019] As a further improvement of the present invention, the substrate is provided with a plurality of module receiving holes, which correspond to and are interconnected with the shielding cavity.

[0020] As a further improvement of this utility model, the module receiving holes are arranged in a grid pattern.

[0021] As a further improvement of this utility model, each module receiving hole is a closed hole surrounding the entire perimeter.

[0022] As a further improvement of the present invention, the shielding shell assembly includes a shielding sheet that cooperates with the shielding side plate. The shielding sheet includes a first surrounding wall, a second surrounding wall opposite to the first surrounding wall, and a third surrounding wall connected between the first surrounding wall and the second surrounding wall. The shielding cavity is formed by the shielding side plate and the shielding sheet.

[0023] As a further improvement of the present invention, the plate body of the shielding side plate includes a first receiving groove and a second receiving groove;

[0024] The first surrounding wall is provided with a first mounting protrusion that inserts into the first receiving groove, and the second surrounding wall is provided with a second mounting protrusion that inserts into the second receiving groove.

[0025] As a further improvement of this utility model, the first mounting protrusion is welded and fixed to the plate body, and the second mounting protrusion is welded and fixed to the plate body.

[0026] As a further improvement of the present invention, the plate body includes a first positioning groove, and the third surrounding wall is provided with a second positioning groove;

[0027] The terminal module includes an insulating block, a first conductive terminal fixed to the insulating block, and a second conductive terminal fixed to the insulating block; the insulating block is housed in the shielding cavity, and the insulating block has a first protrusion inserted into the first positioning groove and a second protrusion inserted into the second positioning groove;

[0028] The first conductive terminal has a first contact portion that protrudes from the insulating block and extends into the shielding cavity, and the second conductive terminal has a second contact portion that protrudes from the insulating block and extends into the shielding cavity.

[0029] As a further improvement of the present invention, the mounting frame includes an inner frame and an outer frame, wherein the inner frame and the outer frame are separately arranged, and the inner frame is disposed in the outer frame.

[0030] As a further improvement of this utility model, the inner frame is an insulated inner frame, and the outer frame is a metal outer frame.

[0031] As a further improvement of this utility model, the mounting frame is a one-piece structure and is a metal frame.

[0032] This utility model also discloses a connector assembly, which includes:

[0033] An electrical connector, wherein the electrical connector is the aforementioned electrical connector; and

[0034] A docking connector, wherein the docking connector is provided with a metal shielding surround;

[0035] The metal shielding surround is configured to pass through the module receiving hole of the electrical connector to be at least partially received within the shielding cavity of the electrical connector.

[0036] As a further improvement of this utility model, the metal shielding surround is provided with a contact spring arm, which elastically abuts against the shielding housing assembly of the electrical connector.

[0037] Compared to existing technologies, the electrical connector and connector assembly of this utility model include a shielding housing assembly, which includes a shielding side plate and a connecting plate, with the connecting plate abutting against the shielding side plate. The shielding side plate includes a plate body and a first insert portion located at one end of the plate body. The connecting plate has a base portion and a first protrusion portion located at one end of the base portion, with the first protrusion portion and the first insert portion jointly inserted into the first mounting groove. This arrangement improves the assembly structure. Attached Figure Description

[0038] Figure 1 This is a perspective view of the connector assembly of this utility model in the first embodiment;

[0039] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0040] Figure 3 yes Figure 1 Partial exploded 3D diagram;

[0041] Figure 4 yes Figure 3 Further partial exploded view;

[0042] Figure 5 yes Figure 4 Partial 3D exploded view from another angle;

[0043] Figure 6 yes Figure 5 A magnified view of part B circled in the middle;

[0044] Figure 7 yes Figure 4 A top view of the circuit board when the electrical connectors are separated from each other;

[0045] Figure 8 yes Figure 7 A magnified view of part C within the middle frame;

[0046] Figure 9 yes Figure 7 A magnified view of part D within the middle frame;

[0047] Figure 10 yes Figure 7 A bottom view;

[0048] Figure 11 yes Figure 10 A magnified view of part E within the middle frame;

[0049] Figure 12 yes Figure 4 Partial exploded perspective view of the electrical connector described herein;

[0050] Figure 13 yes Figure 12 A magnified view of the circled area F;

[0051] Figure 14 yes Figure 12 Top view of the mounting frame, shielding housing assembly, and several terminal modules;

[0052] Figure 15 yes Figure 14 A bottom view;

[0053] Figure 16 yes Figure 12 Further partial exploded view;

[0054] Figure 17 yes Figure 16 Partial 3D exploded view from another angle;

[0055] Figure 18 yes Figure 16 A top view of the inner and outer frames when they are misaligned.

[0056] Figure 19 It is a bottom view of 18;

[0057] Figure 20 yes Figure 4 A perspective view of the electrical connector in the second embodiment;

[0058] Figure 21 yes Figure 20 A three-dimensional diagram from another angle;

[0059] Figure 22 yes Figure 21 Partial exploded 3D diagram;

[0060] Figure 23 yes Figure 22 Partial 3D exploded view from another angle;

[0061] Figure 24 yes Figure 5 A partial exploded perspective view of the electrical connector described herein, in which the connecting plate is separated;

[0062] Figure 25 yes Figure 24 A magnified view of the circled area G;

[0063] Figure 26 yes Figure 24 A magnified view of the circled area H;

[0064] Figure 27 yes Figure 24 Partial 3D exploded view from another angle;

[0065] Figure 28 yes Figure 12 A 3D schematic diagram of a shielding module;

[0066] Figure 29 yes Figure 28 A three-dimensional diagram from another angle;

[0067] Figure 30 yes Figure 28 Partial exploded 3D diagram;

[0068] Figure 31 yes Figure 30 Partial 3D exploded view from another angle;

[0069] Figure 32 yes Figure 30 3D exploded view of the terminal module;

[0070] Figure 33 yes Figure 32 A three-dimensional exploded view from another angle;

[0071] Figure 34 This utility model relates to an electrical connector along... Figure 4 Schematic diagram of the cross section of the MM line;

[0072] Figure 35 yes Figure 34 A magnified view of part I within the middle frame;

[0073] Figure 36 The connector assembly of this utility model is along Figure 1 A schematic diagram of the cross section of the NN line;

[0074] Figure 37 yes Figure 36 A magnified view of part J within the middle frame;

[0075] Figure 38 The connector assembly of this utility model is along Figure 1 A cross-sectional view of the OO line;

[0076] Figure 39 yes Figure 38 A magnified view of the area K within the middle frame;

[0077] Figure 40 yes Figure 5 A three-dimensional schematic diagram of the cable connector in the diagram;

[0078] Figure 41 yes Figure 40 A magnified view of the circled area L;

[0079] Figure 42 This is a partial exploded perspective view of the cable connector of this utility model;

[0080] Figure 43 yes Figure 42 Partial 3D exploded view from another angle;

[0081] Figure 44 yes Figure 42 Further partial exploded view;

[0082] Figure 45 yes Figure 44 Partial 3D exploded view from another angle;

[0083] Figure 46 yes Figure 44 An exploded 3D view of a cable module and a metal shielding surround.

[0084] Figure 47 yes Figure 46 Another perspective of the exploded 3D view;

[0085] Figure 48 This is a three-dimensional schematic diagram of a set of conductive terminals of a cable connector;

[0086] Figure 49 yes Figure 48 A three-dimensional diagram from another angle;

[0087] Figure 50 yes Figure 48 Another perspective of the 3D diagram;

[0088] Figure 51 yes Figure 50 Top view;

[0089] Figure 52 This is a three-dimensional schematic diagram of the electrical connector of this utility model in the third embodiment;

[0090] Figure 53 yes Figure 52 A three-dimensional diagram from another angle;

[0091] Figure 54 yes Figure 53 A magnified view of the circled area P;

[0092] Figure 55 yes Figure 52 Partial exploded 3D diagram;

[0093] Figure 56 yes Figure 55 A magnified view of the circled area Q;

[0094] Figure 57 yes Figure 55 Partial 3D exploded view from another angle;

[0095] Figure 58 yes Figure 53 Partial exploded 3D diagram;

[0096] Figure 59 yes Figure 58 Partial 3D exploded view from another angle;

[0097] Figure 60 yes Figure 55 A three-dimensional schematic diagram of a shielding module;

[0098] Figure 61 yes Figure 60 A three-dimensional diagram from another angle;

[0099] Figure 62 yes Figure 60 Partial exploded 3D diagram;

[0100] Figure 63 yes Figure 62 Partial 3D exploded view from another angle;

[0101] Figure 64 It is along Figure 52 A cross-sectional schematic diagram of the RR line. Detailed Implementation

[0102] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0103] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0104] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this utility model are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. In this utility model, the word "several" means two or more.

[0105] Please refer to Figures 1 to 64 As shown, this utility model discloses a connector assembly including a circuit board 300, an electrical connector 100 mounted on the circuit board 300, and a mating connector configured to mate with the electrical connector 100. In the embodiment illustrated in this utility model, the electrical connector 100 is a board-end backplane connector, and the mating connector is a cable connector 200, such as a cable-end backplane connector. Of course, those skilled in the art will understand that in other embodiments of this utility model, the types of the electrical connector 100 and the cable connector 200 can be flexibly adjusted as needed. The cable connector 200 mates with the electrical connector 100 along the mating direction to achieve data transmission.

[0106] Please combine Figure 7 as well as Figure 9As shown, the circuit board 300 includes a plurality of conductive sheets located on its surface (e.g., the upper surface). These conductive sheets are divided into several groups and arranged in a matrix along a second direction A2-A2 (e.g., left-right direction) and a third direction A3-A3 (e.g., front-back direction). Each group of conductive sheets includes a first ground conductive sheet GP1, a second ground conductive sheet GP2, a third ground conductive sheet GP3, a fourth ground conductive sheet GP4, a first signal conductive sheet SP1, and a second signal conductive sheet SP2. In the embodiment illustrated in this utility model, the first ground conductive sheet GP1, the second ground conductive sheet GP2, the third ground conductive sheet GP3, and the fourth ground conductive sheet GP4 generally form a frame, and any two adjacent ground conductive sheets among the first ground conductive sheet GP1, the second ground conductive sheet GP2, the third ground conductive sheet GP3, and the fourth ground conductive sheet GP4 are separated. That is, any two adjacent ground conductive sheets among the first ground conductive sheet GP1, the second ground conductive sheet GP2, the third ground conductive sheet GP3, and the fourth ground conductive sheet GP4 are disconnected. The first signal conductive sheet SP1 and the second signal conductive sheet SP2 are located within the frame and surrounded by the first ground conductive sheet GP1, the second ground conductive sheet GP2, the third ground conductive sheet GP3, and the fourth ground conductive sheet GP4 to improve the shielding effect and enhance the signal transmission quality. In one embodiment of this invention, the first signal conductive sheet SP1 and the second signal conductive sheet SP2 form a differential pair to improve the signal transmission rate. In the embodiment illustrated in this invention, any two adjacent sets of conductive sheets share a single ground conductive sheet. For any set of first signal conductive sheets SP1 and second signal conductive sheets SP2, each set is surrounded by a first ground conductive sheet GP1, a second ground conductive sheet GP2, a third ground conductive sheet GP3, and a fourth ground conductive sheet GP4 to ensure the shielding effect.

[0107] Please combine Figure 2 As shown in the illustrated embodiment of this utility model, the connector assembly includes a plurality of fasteners for fixing the electrical connector 100 to the circuit board 300. The fasteners include a first bolt 401 and a second bolt 402. The first bolt 401 passes through the circuit board 300 and is fixed in the electrical connector 100, and the second bolt 402 passes through the circuit board 300 and is fixed in the electrical connector 100.

[0108] Please combine Figures 3 to 23As shown in the illustrated embodiment of this utility model, the electrical connector 100 includes a mounting frame 1 and a plurality of shielding modules 30 mounted on the mounting frame 1. Each shielding module 30 includes a shielding housing assembly 2 and a plurality of terminal modules 3 mounted in the shielding housing assembly 2.

[0109] Please combine Figures 16 to 19 As shown, in the first embodiment of this utility model, the mounting frame 1 includes an inner frame 1a and an outer frame 1b. The inner frame 1a and the outer frame 1b are separately disposed, and the inner frame 1a is disposed within the outer frame 1b. In one embodiment of this utility model, the inner frame 1a is an insulating inner frame, that is, it is made of insulating material; the outer frame 1b is a conductive outer frame. Specifically, in one embodiment of this utility model, the outer frame 1b is a metal outer frame, that is, the outer frame 1b is made of metal material to improve shielding performance. Of course, in other embodiments, the inner frame 1a can also be a metal inner frame, or both the inner frame 1a and the outer frame 1b can be metal frames. In one embodiment of this utility model, the inner frame 1a is fixed to the outer frame 1b by an interference fit.

[0110] In the first embodiment illustrated in this utility model, the inner frame 1a includes a base plate portion 15, a first wall portion 11 connected to the base plate portion 15 and located on a first side of the base plate portion 15, a second wall portion 12 connected to the base plate portion 15 and located on a second side of the base plate portion 15, a third wall portion 13 connected to the base plate portion 15 and located on a third side of the base plate portion 15, and a fourth wall portion 14 connected to the base plate portion 15 and located on a fourth side of the base plate portion 15. In the first embodiment illustrated in this utility model, the first wall portion 11, the second wall portion 12, the third wall portion 13, and the fourth wall portion 14 are located around the base plate portion 15, wherein the first wall portion 11 and the second wall portion 12 are disposed opposite each other, and the third wall portion 13 and the fourth wall portion 14 are disposed opposite each other. The first wall portion 11, the second wall portion 12, the third wall portion 13, and the fourth wall portion 14 form a rectangle to form a mounting space 10. The base plate portion 15 is located above the mounting space 10. In the first embodiment illustrated in this utility model, the first wall portion 11, the second wall portion 12, the third wall portion 13 and the fourth wall portion 14 are provided with a mating surface 101 (e.g., an upper surface) and a mounting surface 102 (e.g., a lower surface) opposite to the mating surface 101.

[0111] In the first embodiment illustrated in this utility model, the substrate portion 15 is provided with a plurality of module receiving holes 151 extending through the substrate portion 15 along a first direction A1-A1 (e.g., vertical direction), wherein each module receiving hole 151 is generally rectangular. These module receiving holes 151 are arranged in a grid pattern along the second direction A2-A2 and the third direction A3-A3. In the embodiment illustrated in this utility model, these module receiving holes 151 are arranged in a matrix pattern along the second direction A2-A2 and the third direction A3-A3. Each module receiving hole 151 is connected to the mounting space 10. Those skilled in the art will understand that the technical term "matrix" used in this utility model should be interpreted broadly, that is, it should include non-rowed arrangements caused by processes or slight deformations. By providing module receiving holes 151 on the mounting frame 1, this utility model helps to improve the positional accuracy of the module receiving holes 151, thereby helping to improve the mating accuracy when mating with the cable connector 200. In the embodiment illustrated in this utility model, each module receiving hole 151 is a closed hole surrounding the entire perimeter to ensure the structural strength of the mounting frame 1 as much as possible.

[0112] In the first embodiment illustrated in this utility model, the third wall portion 13 is further provided with a plurality of first mounting protrusions 131 protruding downward along the first direction A1-A1 and a first positioning protrusion 132 protruding upward along the first direction A1-A1. The protrusion directions of the first mounting protrusions 131 and the first positioning protrusion 132 are opposite. Specifically, in the first embodiment illustrated in this utility model, the first positioning protrusion 132 is generally U-shaped, and includes a first guide groove 1321 penetrating the third wall portion 13 along the first direction A1-A1.

[0113] The fourth wall portion 14 is provided with a plurality of second mounting protrusions 141 protruding downward along the first direction A1-A1, and a second positioning protrusion 142 and a third positioning protrusion 143 protruding upward along the first direction A1-A1, wherein the protrusion direction of the second mounting protrusions 141 is opposite to that of the second positioning protrusions 142 and the third positioning protrusion 143. In the first embodiment illustrated in this utility model, the second positioning protrusion 142 is generally U-shaped and includes a second guide groove 1421 penetrating the fourth wall portion 14 along the first direction A1-A1. Similarly, the third positioning protrusion 143 is also generally U-shaped and includes a third guide groove 1431 penetrating the fourth wall portion 14 along the first direction A1-A1. Those skilled in the art will understand that by providing the first positioning protrusion 132 on the third wall portion 13 and the second positioning protrusion 142 and the third positioning protrusion 143 on the fourth wall portion 14, a foolproof function can be achieved to ensure correct mating with the cable connector 200. The first positioning protrusion 132, the second positioning protrusion 142, and the third positioning protrusion 143 all protrude upward from the mating surface 101. The first mounting protrusion 131 and the second mounting protrusion 141 both protrude downward from the mounting surface 102. In the first embodiment illustrated in this utility model, the first mounting protrusion 131 and the second mounting protrusion 141 are both configured to mate with the outer frame 1b.

[0114] In the first embodiment illustrated in this utility model, the inner side of the first wall portion 11 is further provided with a plurality of first mounting grooves 1101 extending downward along the first direction A1-A1 through the mounting surface 102, and a first locking hole 1102 communicating with the first mounting grooves 1101 and recessed outward. The first mounting grooves 1101 are exposed in and communicate with the mounting space 10. Each first mounting groove 1101 does not extend upward along the first direction A1-A1 through the mating surface 101, so as to ensure the structural strength of the first wall portion 11 as much as possible. In the first embodiment of this utility model, the first locking hole 1102 extends through the first wall portion 11 along the second direction A2-A2. The first locking holes 1102 are arranged at intervals along the third direction A3-A3, and each first locking hole 1102 is a surrounding hole, so as to ensure the structural strength of the first wall portion 11 as much as possible.

[0115] Similarly, the inner side of the second wall portion 12 is also provided with a plurality of second mounting grooves 1201 extending downward along the first direction A1-A1 through the mounting surface 102, and second locking holes 1202 that are connected to the second mounting grooves 1201 and recessed outward. The second mounting grooves 1201 are exposed in the mounting space 10 and connected to the mounting space 10. Each second mounting groove 1201 does not extend upward along the first direction A1-A1 through the mating surface 101, so as to ensure the structural strength of the second wall portion 12 as much as possible. In the first embodiment of the present invention, the second locking holes 1202 extend through the second wall portion 12 along the second direction A2-A2. The second locking holes 1202 are arranged at intervals along the third direction A3-A3, and each second locking hole 1202 is a hole surrounding the second wall portion 12 as much as possible.

[0116] In the first embodiment illustrated in this utility model, the first mounting groove 1101 does not extend laterally outward through the first wall portion 11, and the second mounting groove 1201 does not extend laterally outward through the second wall portion 12. This arrangement minimizes openings, improves shielding effectiveness, and enhances signal transmission quality. In the first embodiment illustrated in this utility model, the aligned first mounting groove 1101 and second mounting groove 1201 are configured to jointly hold a shielding housing assembly 2 (described in detail later).

[0117] In the first embodiment illustrated in this utility model, the outer frame 1b is generally frame-shaped, comprising a first outer frame wall 16, a second outer frame wall 17 opposite to the first outer frame wall 16, a third outer frame wall 18 connecting one end of the first outer frame wall 16 to one end of the second outer frame wall 17, a fourth outer frame wall 19 connecting the other end of the first outer frame wall 16 to the other end of the second outer frame wall 17, and a receiving cavity 190 formed by the first outer frame wall 16, the second outer frame wall 17, the third outer frame wall 18, and the fourth outer frame wall 19. The receiving cavity 190 is used to at least partially accommodate the inner frame 1a. The first outer frame wall 16 corresponds to the first wall portion 11, the second outer frame wall 17 corresponds to the second wall portion 12, the third outer frame wall 18 corresponds to the third wall portion 13, and the fourth outer frame wall 19 corresponds to the fourth wall portion 14.

[0118] In the first embodiment illustrated in this utility model, the third outer frame wall 18 is provided with a first limiting protrusion 181 protruding into the receiving cavity 190. The first limiting protrusion 181 is provided with a first mounting through hole 182. The first limiting protrusion 181 is configured to abut against the inner frame 1a along the first direction A1-A1 to support the inner frame 1a and limit its installation. At least a portion of the first mounting post 131 is inserted into and passes through the first mounting through hole 182 to position it with the circuit board 300.

[0119] Similarly, in the first embodiment illustrated in this utility model, the fourth outer frame wall 19 is provided with a second limiting protrusion 191 protruding into the receiving cavity 190. The second limiting protrusion 191 is provided with a second mounting through hole 192. The second limiting protrusion 191 is configured to abut against the inner frame 1a along the first direction A1-A1 to support the inner frame 1a and limit its installation. At least a portion of the second mounting post 141 is inserted into and passes through the second mounting through hole 192 to position it with the circuit board 300.

[0120] In one embodiment of this utility model, when the inner frame 1a is made of insulating material, at least a portion of the first mounting protrusion 131 is inserted into the first mounting through hole 182, and at least a portion of the second mounting protrusion 141 is inserted into the second mounting through hole 192. At this time, by means of processes such as hot melting, the first mounting protrusion 131 and the second mounting protrusion 141 can be melted, thereby better fixing them together with the outer frame 1b.

[0121] In addition, in the embodiment illustrated in this utility model, the first outer frame wall 16, the second outer frame wall 17, the third outer frame wall 18, and the fourth outer frame wall 19 are each provided with a plurality of mounting protrusions 193 protruding downwards from the mounting surface 102 along the first direction A1-A1. The mounting protrusions 193 are used to support the circuit board 300, creating a gap between the mounting surface 102 and the upper surface of the circuit board 300 to facilitate heat dissipation. In the first embodiment illustrated in this utility model, a thin film 194 is provided on the mounting protrusion 193, and the thin film 194 is sandwiched between the mounting protrusion 193 and the circuit board 300 to reduce the risk of damage to the circuit board 300.

[0122] Furthermore, the outer frame 1b also includes a first mounting through hole 195 located at one corner and a second mounting through hole 196 located at the other corner. In the embodiment illustrated in this utility model, the corner where the first mounting through hole 195 is located and the corner where the second mounting through hole 196 is located are approximately two diagonal corners of the outer frame 1b. In the embodiment illustrated in this utility model, both the first mounting through hole 195 and the second mounting through hole 196 are threaded holes. When the outer frame 1b is made of metal, providing these threaded holes helps ensure the reliability of fastening, improves the convenience of installation, and helps reduce the height.

[0123] Please combine Figures 20 to 23 As shown, in the second embodiment of this utility model, the mounting frame 1 is a one-piece structure, that is, the inner frame 1a and the outer frame 1b in the first embodiment are combined into a whole. In the second embodiment illustrated in this utility model, the mounting frame 1 is a conductive frame. Specifically, the mounting frame 1 is a metal outer frame, that is, the mounting frame 1 is made of metal material to improve shielding performance. For other structures of the mounting frame 1 in the second embodiment of this utility model, please refer to the mounting frame 1 in the first embodiment of this utility model, which will not be described again here. In this case, the mounting frame 1 can be manufactured using a metal powder sintering process.

[0124] In the embodiment illustrated in this utility model, the shielding housing assembly 2 includes a shielding side plate 21 and a plurality of shielding plates 22 fixed to the shielding side plate 21. In the embodiment illustrated in this utility model, both the shielding side plate 21 and the shielding plates 22 are made of metal material to improve the shielding effect. The shielding side plate 21 includes a plate body portion 211, a first insert portion 214 located at one end of the plate body portion 211, and a second insert portion 215 located at the other end of the plate body portion 211. The first insert portion 214 is provided with a first retaining spring arm 212, and the second insert portion 215 is provided with a second retaining spring arm 213. The plate body portion 211 is provided with a plurality of first receiving grooves 2111 spaced apart along the first direction A1-A1, a plurality of second receiving grooves 2112 spaced apart along the first direction A1-A1, and a first positioning groove 2113. The first receiving groove 2111 and the second receiving groove 2112 are arranged parallel to each other, and the first positioning groove 2113 is located between the first receiving groove 2111 and the second receiving groove 2112. The first insert portion 214 is received in the first mounting groove 1101, and the second insert portion 215 is received in the second mounting groove 1201. The first holding spring arm 212 is cantilevered and has a first locking protrusion 2121. The second holding spring arm 213 is cantilevered and has a second locking protrusion 2131. The first locking protrusion 2121 is engaged and fixed in the first locking hole 1102, and the second locking protrusion 2131 is engaged and fixed in the second locking hole 1202 to prevent the shielding shell assembly 2 from detaching from the mounting frame 1.

[0125] In the first embodiment illustrated in this utility model, each shielding plate 22 is U-shaped, comprising a first surrounding wall 221, a second surrounding wall 222 opposite to the first surrounding wall 221, and a third surrounding wall 223 connecting the first surrounding wall 221 and the second surrounding wall 222. The third surrounding wall 223 is perpendicular to the first surrounding wall 221 and the second surrounding wall 222. The third surrounding wall 223 is disposed opposite to the shielding side plate 21. The first surrounding wall 221 is provided with a plurality of first mounting protrusions 2211 spaced apart along the first direction A1-A1, and the first mounting protrusions 2211 are configured to be inserted into the first receiving groove 2111. The second surrounding wall 222 is provided with a plurality of second mounting protrusions 2221 spaced apart along the first direction A1-A1, and the second mounting protrusions 2221 are configured to be inserted into the second receiving groove 2112. In one embodiment of this utility model, to improve the holding force between the shielding sheet 22 and the shielding side plate 21, both the first mounting protrusion 2211 and the second mounting protrusion 2221 are welded and fixed to the shielding side plate 21. The welding methods include, but are not limited to, laser welding, brazing, or other welding methods. Furthermore, the bottom of the first surrounding wall 221 is provided with a first welding portion 2212, which has a first groove 2213. The bottom of the second surrounding wall 222 is also provided with a second welding portion 2222, which has a second groove 2223. The first welding portion 2212 and the second welding portion 2222 are configured to be welded to the first grounding conductive sheet GP1 and the second grounding conductive sheet GP2, respectively. The first groove 2213 and the second groove 2223 facilitate the filling of solder (e.g., solder) to improve the welding quality. The third surrounding wall 223 is provided with a second positioning groove 2231.

[0126] In a first embodiment illustrated in this utility model, a plurality of shielding plates 22 are arranged along the second direction A2-A2, wherein the first surrounding wall 221 of one shielding plate 22 and the second surrounding wall 222 of the other shielding plate 22 are close to each other. The first mounting protrusion 2211 of the first surrounding wall 221 of one shielding plate 22 and the second mounting protrusion 2221 of the second surrounding wall 222 of the other shielding plate 22 are jointly inserted into a corresponding first receiving groove 2111 or second receiving groove 2112. In another embodiment of this utility model, the first surrounding wall 221 of one shielding plate 22 and the second surrounding wall 222 of the other shielding plate 22 are abutted against each other.

[0127] In the embodiment illustrated in this utility model, the shielding shell assembly 2 further includes a plurality of connecting plates 23. In the first embodiment illustrated in this utility model, each connecting plate 23 is made of metal and includes a base portion 231, a first protrusion portion 234 located at one end of the base portion 231, and a second protrusion portion 235 located at the other end of the base portion 231. The first protrusion portion 234 is provided with a first locking spring arm 232, and the second protrusion portion 235 is provided with a second locking spring arm 233. The first locking spring arm 232 is cantilevered and is provided with a first fastening protrusion 2321. The second locking spring arm 233 is cantilevered and is provided with a second fastening protrusion 2331. The first fastening protrusion 2321 is locked and fixed in the first locking hole 1102, and the second fastening protrusion 2331 is locked and fixed in the second locking hole 1202 to prevent the connecting plate 23 from detaching from the mounting frame 1.

[0128] In the embodiment illustrated in this utility model, the base portion 231 is further provided with a plurality of first abutment springs 2311 and a plurality of second abutment springs 2312. Both the first abutment springs 2311 and the second abutment springs 2312 are stamped outwards from the base portion 231, wherein the first abutment springs 2311 protrude from a first side of the base portion 231, and the second abutment springs 2312 protrude from a second side of the base portion 231. The protruding directions of the first abutment springs 2311 and the second abutment springs 2312 are opposite. In the embodiment illustrated in this utility model, the first abutment springs 2311 and the second abutment springs 2312 are arranged alternately. The first abutment springs 2311 abut against adjacent shielding side plates 21, and the second abutment springs 2312 abut against adjacent shielding plates 22. With this arrangement, the connecting plate 23 can connect two adjacent shielding housing assemblies 2 to improve the grounding shielding effect. Those skilled in the art will understand that the second abutment spring 2312 of the outermost connecting plate 23 of the shielding housing assembly 2 abuts against the inner frame 1a. When the inner frame 1a is made of metal, this abutment facilitates the connection of the outermost connecting plate 23 to the inner frame 1a as a whole, thereby improving the shielding effect.

[0129] In the first embodiment illustrated in this utility model, the base portion 231 is further provided with a plurality of welding tails 2313 protruding downward from the mounting surface 102 along the first direction A1-A1. The welding tails 2313 are perpendicular to the first welding portion 2212 and the second welding portion 2222. The welding tails 2313 are provided with ventilation grooves 2314. In two adjacent shielding housing assemblies 2, the welding tails 2313 of one shielding housing assembly 2 are used to weld and fix the third grounding conductive piece GP3 to the circuit board 300, and the welding tails 2313 of the other shielding housing assembly 2 are used to weld and fix the fourth grounding conductive piece GP4 to the circuit board 300. In two adjacent shielding housing assemblies 2, the welding tails 2313 of one shielding housing assembly 2, the welding tails 2313 of the other shielding housing assembly 2, the first welding portion 2212, and the second welding portion 2222 form a shielding space 24. Preferably, the bottom surfaces of the welding tail 2313 of one shielding housing assembly 2, the welding tail 2313 of the other shielding housing assembly 2, the bottom surface of the first welding portion 2212, and the bottom surface of the second welding portion 2222 are located in the same plane to facilitate welding and fixing to the circuit board 300. Furthermore, in the embodiment illustrated in this utility model, the first welding portion 2212, the second welding portion 2222, and the welding tail 2313 are all thinned compared to their respective connected portions, thereby improving welding quality.

[0130] In the embodiment illustrated in this utility model, the shielding sheet 22 and the shielding side plate 21 together form a surrounding shielding cavity 25 to accommodate the terminal module 3. This utility model uses a U-shaped shielding sheet 22 combined with the shielding side plate 21 to form several shielding cavities 25, making the volume of each shielding cavity 25 relatively small, thereby improving the signal transmission rate. Furthermore, any two adjacent shielding cavities 25 arranged along the second direction A2-A2 can be separated by a first multi-layer wall 26 located between these two shielding cavities, thereby improving the shielding effect. The first multi-layer wall 26 includes a second surrounding wall 222 of one shielding sheet 22 and a first surrounding wall 221 of another shielding sheet 22. Any two adjacent shielding cavities 25 arranged along the third direction A3-A3 can be separated by a second multi-layer wall 27 located between these two shielding cavities, thereby improving the shielding effect. The second multi-layer wall 27 includes a third surrounding wall 223, a connecting plate 23, and a shielding side plate 21.

[0131] In one assembly method of this utility model, when assembling the shielding shell assembly 2 with the mounting frame 1, firstly, the terminal module 3 is clamped between the shielding side plate 21 and the shielding sheet 22 to form a shielding module 30; then, the shielding side plate 21 and the shielding sheet 22 are fixed; then, a connecting plate 23 is provided on both sides of each shielding shell assembly 2, wherein two adjacent shielding shell assemblies 2 share a connecting plate 23 located between them. At this time, the first locking spring arm 232 and the first holding spring arm 212 are close to each other, and the first holding protrusion 2321 and the first locking protrusion 2121 are close to each other, so as to jointly hold and fix in the first locking hole 1102; similarly, the second locking spring arm 233 and the second holding spring arm 213 are close to each other, and the second holding protrusion 2331 and the second locking protrusion 2131 are close to each other, so as to jointly hold and fix in the second locking hole 1202. Then, the shielding housing assembly 2, together with the terminal module 3, is installed in the mounting frame 1. The first insert portion 214 and the first protrusion portion 234 of the shielding housing assembly 2 abut against each other and are inserted into the first mounting groove 1101. The second insert portion 215 and the second protrusion portion 235 of the shielding housing assembly 2 abut against each other and are inserted into the second mounting groove 1201. Of course, those skilled in the art will understand that the connecting plate 23 located on the outermost side of the shielding housing assembly 2 and not abutting against the shielding side plate 21 is separately held in one first mounting groove 1101 and one second mounting groove 1201. After assembly, the module receiving hole 151 corresponds to the shielding cavity 25.

[0132] Please combine Figures 29 to 33 As shown in the illustrated embodiment of this utility model, the plurality of terminal modules 3 are all identical. Each terminal module 3 includes an insulating block 33, a first conductive terminal 31 fixed to the insulating block 33, and a second conductive terminal 32 fixed to the insulating block 33. In one embodiment of this utility model, the first conductive terminal 31 and the second conductive terminal 32 are inserted-molded into the insulating block 33 to form a single unit. Of course, those skilled in the art will understand that in other embodiments of this utility model, the first conductive terminal 31 and the second conductive terminal 32 may also be fixed to the insulating block 33 by other means (e.g., assembly). In one embodiment of this utility model, the first conductive terminal 31 and the second conductive terminal 32 form a differential pair to improve the signal transmission rate.

[0133] The insulating block 33 includes a top surface 331, a bottom surface 332, a first sidewall 333, a second sidewall 334 opposite to the first sidewall 333, a third sidewall 335, and a fourth sidewall 336 opposite to the third sidewall 335.

[0134] In the embodiment illustrated in this utility model, the first sidewall 333 is provided with a first protruding strip 337 protruding outward, which is configured to be engaged in the first positioning groove 2113. The second sidewall 334 is provided with a second protruding strip 338 protruding outward, which is configured to be engaged in the second positioning groove 2231.

[0135] In the embodiment illustrated in this utility model, the first sidewall 333 is further provided with a first through groove 3331 extending along the first direction A1-A1 through the top surface 331 and the bottom surface 332, and the second sidewall 334 is further provided with a second through groove 3341 extending along the first direction A1-A1 through the top surface 331 and the bottom surface 332. By providing the first through groove 3331 and the second through groove 3341, heat can be transferred to the middle area of ​​the electrical connector 100 when the product passes through the reflow soldering furnace, thereby making the entire area heated evenly and improving the soldering quality.

[0136] The first conductive terminal 31 includes a first fixing portion 311 fixed in the insulating block 33, a first contact portion 312 extending from one end of the first fixing portion 311 and protruding upward from the insulating block 33, and a first tail portion 313 extending from the other end of the first fixing portion 311 and protruding from the insulating block 33. In the embodiment illustrated in this utility model, the first contact portion 312 is needle-shaped and protrudes into the shielding cavity 25. The first tail portion 313 is generally flat and is surface-mounted onto the first signal conductive sheet SP1 of the circuit board 300.

[0137] Similarly, the second conductive terminal 32 includes a second fixing portion 321 fixed in the insulating block 33, a second contact portion 322 extending from one end of the second fixing portion 321 and protruding upward from the insulating block 33, and a second tail portion 323 extending from the other end of the second fixing portion 321 and protruding from the insulating block 33. In the embodiment illustrated in this utility model, the second contact portion 322 is needle-shaped and protrudes into the shielding cavity 25. The second tail portion 323 is generally flat and is surface-mounted onto the second signal conductive sheet SP2 of the circuit board 300.

[0138] When the terminal module 3 is assembled into the shielding cavity 25 of the shielding housing assembly 2, the terminal module 3 is surrounded by the shielding side plate 21 and the shielding sheet 22. The first protrusion 337 is engaged in the first positioning groove 2113, and the second protrusion 338 is engaged in the second positioning groove 2231. With this arrangement, the first tail 313 and the second tail 323 of all the terminal modules 3 can be controlled within the same plane, which helps to improve the product yield.

[0139] After the electrical connector 100 is assembled, the first welding part 2212, the second welding part 2222, the welding tail 2313 of one connecting plate 23, and the welding tail 2313 of the other connecting plate 23 all protrude downwards from the mounting surface 102 along the first direction A1-A1. The first welding part 2212, the second welding part 2222, the welding tail 2313 of one connecting plate 23, and the welding tail 2313 of the other connecting plate 23 are respectively welded to the first grounding conductive piece GP1, the second grounding conductive piece GP2, the third grounding conductive piece GP3, and the fourth grounding conductive piece GP4.

[0140] Please combine Figure 6 As shown, the first tail portion 313 and the second tail portion 323 are at least partially located within the shielding space 24. That is, the first tail portion 313 and the second tail portion 323 are surrounded at their respective height by the first weld portion 2212, the second weld portion 2222, the welded tail portion 2313 of one connecting plate 23, and the welded tail portion 2313 of another connecting plate 23, thereby improving the shielding effect of the welded ends.

[0141] Please combine Figures 52 to 64 As shown, the electrical connector 100 in the third embodiment of this utility model is substantially the same as the electrical connector 100 in the first embodiment of this utility model, wherein the same reference numerals represent the same or corresponding technical features.

[0142] The electrical connector 100 in the third embodiment of this utility model includes a mounting frame 1, a shielding housing assembly 2 mounted on the mounting frame 1, and a plurality of terminal modules 3 mounted in the shielding housing assembly 2. The mounting frame 1 includes an inner frame 1a and an outer frame 1b. The inner frame 1a and the outer frame 1b are separately disposed, with the inner frame 1a located within the outer frame 1b. The mounting frame 1 of the electrical connector 100 in the third embodiment of this utility model is the same as that of the electrical connector 100 in the first embodiment of this utility model, and will not be described further. The terminal modules 3 of the electrical connector 100 in the third embodiment of this utility model are the same as those of the electrical connector 100 in the first embodiment of this utility model, and will not be described further.

[0143] In the third embodiment illustrated in this utility model, the shielding housing assembly 2 includes a shielding side plate 21 and a plurality of shielding plates 22 fixed to the shielding side plate 21. In the embodiment illustrated in this utility model, both the shielding side plate 21 and the shielding plates 22 are made of metal material to improve the shielding effect. The shielding side plate 21 includes a plate body portion 211, a first insert portion 214 located at one end of the plate body portion 211, a second insert portion 215 located at the other end of the plate body portion 211, and a welding protrusion 216 integrally extending downward from the plate body portion 211. The welding protrusion 216 is provided with a venting groove 2161. The first insert portion 214 is provided with a first retaining spring arm 2141, and the second insert portion 215 is provided with a second retaining spring arm 2151. The plate body portion 211 is provided with a plurality of first receiving grooves 2111 spaced apart along the first direction A1-A1, a plurality of second receiving grooves 2112 spaced apart along the first direction A1-A1, and a first positioning groove 2113. The first receiving groove 2111 and the second receiving groove 2112 are arranged parallel to each other, and the first positioning groove 2113 is located between the first receiving groove 2111 and the second receiving groove 2112. The first insert portion 214 is received in the first mounting groove 1101, and the second insert portion 215 is received in the second mounting groove 1201. The first retaining spring arm 2141 and the second retaining spring arm 2151 are both inclined and are integrally stamped laterally from the first insert portion 214 and the second insert portion 215, respectively. The first end portion 2141a of the first retaining spring arm 2141 and the second end portion 2151a of the second retaining spring arm 2151 are respectively engaged in the mounting frame 1 to prevent the shielding shell assembly 2 from disengaging from the mounting frame 1 in a direction opposite to the assembly direction.

[0144] In the third embodiment illustrated in this utility model, each shielding plate 22 is U-shaped, comprising a first surrounding wall 221, a second surrounding wall 222 opposite to the first surrounding wall 221, and a third surrounding wall 223 connecting the first surrounding wall 221 and the second surrounding wall 222. The third surrounding wall 223 is perpendicular to the first surrounding wall 221 and the second surrounding wall 222. The third surrounding wall 223 is disposed opposite to the shielding side plate 21. The first surrounding wall 221 is provided with a plurality of first mounting protrusions 2211 spaced along the first direction A1-A1, and the first mounting protrusions 2211 are configured to be inserted into the first receiving groove 2111. The second surrounding wall 222 is provided with a plurality of second mounting protrusions 2221 spaced along the first direction A1-A1, and the second mounting protrusions 2221 are configured to be inserted into the second receiving groove 2112. In one embodiment of this utility model, to improve the holding force between the shielding sheet 22 and the shielding side plate 21, both the first mounting protrusion 2211 and the second mounting protrusion 2221 are welded and fixed to the shielding side plate 21. The welding methods include, but are not limited to, laser welding, brazing, or other welding methods. Furthermore, the bottom of the first surrounding wall 221 is provided with a first welding portion 2212, which has a first groove 2213. The bottom of the second surrounding wall 222 is also provided with a second welding portion 2222, which has a second groove 2223. The bottom of the third surrounding wall 223 is also provided with a third welding portion 2232, which has a third groove 2233. The first welding portion 2212, the second welding portion 2222, the third welding portion 2232, and the welding protrusion 216 are configured to be welded to the first grounding conductive sheet GP1, the second grounding conductive sheet GP2, the third grounding conductive sheet GP3, and the fourth grounding conductive sheet GP4, respectively. The first groove 2213, the second groove 2223, the third groove 2233, and the venting groove 2161 facilitate the filling of solder (e.g., solder) to improve soldering quality. The third surrounding wall 223 is provided with a second positioning groove 2231 and a contact tab 2234 protruding away from the shielding side plate 21.

[0145] In a first embodiment illustrated in this utility model, a plurality of shielding plates 22 are arranged along the second direction A2-A2, wherein the first surrounding wall 221 of one shielding plate 22 and the second surrounding wall 222 of the other shielding plate 22 are close to each other. The first mounting protrusion 2211 of the first surrounding wall 221 of one shielding plate 22 and the second mounting protrusion 2221 of the second surrounding wall 222 of the other shielding plate 22 are jointly inserted into a corresponding first receiving groove 2111 or second receiving groove 2112. In another embodiment of this utility model, the first surrounding wall 221 of one shielding plate 22 and the second surrounding wall 222 of the other shielding plate 22 are abutted against each other.

[0146] In the third embodiment illustrated in this utility model, the shielding shell assembly 2 further includes a plurality of connecting plates 23. In this third embodiment, each connecting plate 23 is made of metal and includes a base portion 231, a first protrusion portion 234 located at one end of the base portion 231, and a second protrusion portion 235 located at the other end of the base portion 231. The base portion 231 has a plurality of slots 2310 extending upward through the base portion 231. The first protrusion portion 234 has a third retaining spring arm 2341, and the second protrusion portion 235 has a fourth retaining spring arm 2351. Both the third retaining spring arm 2341 and the fourth retaining spring arm 2351 are inclined and are integrally stamped laterally from the first protrusion portion 234 and the second protrusion portion 235, respectively. The third end portion 2341a of the third retaining arm 2341 and the fourth end portion 2351a of the fourth retaining arm 2351 are respectively retained in the mounting frame 1 to prevent the connecting plate 23 from detaching from the mounting frame 1 in a direction opposite to the assembly direction.

[0147] Please combine Figure 56 as well as Figure 64 As shown in the third embodiment illustrated in this utility model, on a connecting plate 23 and a shielding side plate 21 that are attached to each other, the first retaining arm 2141 of the shielding side plate 21 and the third retaining arm 2341 of the connecting plate 23 are symmetrically arranged and protrude in opposite directions. The second retaining arm 2151 of the shielding side plate 21 and the fourth retaining arm 2351 of the connecting plate 23 are symmetrically arranged and protrude in opposite directions. The contact tab 2234 contacts the base portion 231 to improve the grounding shielding effect.

[0148] Those skilled in the art will understand that in the third embodiment illustrated in this invention, the connecting plate 23 itself does not have a welding tail 2313 similar to that in the first embodiment. Instead, this invention provides a third welding portion 2232 on the third surrounding wall 223 and a welding protrusion 216 on the shielding side plate 21. Please refer to... Figure 53 as well as Figure 54 As shown in the third embodiment illustrated in this utility model, the first welding portion 2212, the second welding portion 2222, the third welding portion 2232, and the welding protrusion 216 form a shielding space 24. Preferably, the bottom surfaces of the first welding portion 2212, the second welding portion 2222, the third welding portion 2232, and the welding protrusion 216 are located in the same plane to facilitate welding and fixing to the circuit board 300.

[0149] In the embodiment illustrated in this utility model, the shielding sheet 22 and the shielding side plate 21 together form a surrounding shielding cavity 25 to accommodate the terminal module 3. This utility model uses a U-shaped shielding sheet 22 combined with the shielding side plate 21 to form several shielding cavities 25, making the volume of each shielding cavity 25 relatively small, thereby improving the signal transmission rate. Furthermore, any two adjacent shielding cavities 25 arranged along the second direction A2-A2 can be separated by a first multi-layer wall 26 located between these two shielding cavities, thereby improving the shielding effect. The first multi-layer wall 26 includes a second surrounding wall 222 of one shielding sheet 22 and a first surrounding wall 221 of another shielding sheet 22. Any two adjacent shielding cavities 25 arranged along the third direction A3-A3 can be separated by a second multi-layer wall 27 located between these two shielding cavities, thereby improving the shielding effect. The second multi-layer wall 27 includes a third surrounding wall 223, a connecting plate 23, and one of the shielding side plates 21.

[0150] In addition, in the embodiment illustrated in this utility model, by setting the connecting plate 23, it is beneficial to appropriately increase the spacing between two adjacent shielding modules 30 on the third direction A3-A3, thereby facilitating the arrangement of conductive sheets on the circuit board 300.

[0151] Please combine Figures 40 to 51As shown, the cable connector 200 includes a receiving housing 5, a plurality of cable modules 6 at least partially located within the receiving housing 5, and a covering housing 7 formed on the cable modules 6 and fixed to the receiving housing 5. In one embodiment of this invention, the receiving housing 5 is a metal housing made of a metal material. For example, the receiving housing 5 is manufactured using powder metallurgy to improve structural strength and shielding effect. Please refer to... Figure 40 As shown, in a first embodiment of the cable connector 200 of this utility model, the housing 5 is provided with a first positioning plate 51 on one side, and a second positioning plate 52 and a third positioning plate 53 on the other side. The first positioning plate 51 is configured to be inserted into the first guide groove 1321, the second positioning plate 52 is configured to be inserted into the second guide groove 1421, and the third positioning plate 53 is configured to be inserted into the third guide groove 1431.

[0152] Furthermore, the housing 5 is also provided with a first mounting hole 54 and a second mounting hole 55. The connector assembly includes a plurality of retaining members for securing the cable connector 200 and the electrical connector 100 together. The retaining members include a third bolt 403 and a fourth bolt 404. The third bolt 403 passes through the first mounting hole 54 and is fixed in the electrical connector 100. The fourth bolt 404 passes through the second mounting hole 55 and is fixed in the electrical connector 100.

[0153] Please combine Figures 42 to 45 As shown, in a first embodiment of the cable connector 200 of this utility model, the receiving housing 5 includes a first outer wall 56, a second outer wall 57 opposite to the first outer wall 56, and a connecting wall 58 connecting one end of the first outer wall 56 and one end of the second outer wall 57. The receiving housing 5 includes a receiving space 50 located between the first outer wall 56 and the second outer wall 57. The inner surface of the first outer wall 56 is provided with a plurality of first mounting slots 561 communicating with the receiving space 50, and the inner surface of the second outer wall 57 is provided with a plurality of second mounting slots 571 communicating with the receiving space 50. The corresponding first mounting slots 561 and second mounting slots 571 are aligned to hold the corresponding cable module 6.

[0154] Please combine Figures 42 to 51As shown, in a first embodiment of the cable connector 200 of this utility model, each cable module 6 includes a plurality of cable modules 6a arranged at intervals, a plurality of metal shielding surrounds 65 sleeved on the cable modules 6a, and a fixing block 69 fixed to the plurality of cable modules 6a and the metal shielding surrounds 65. In one embodiment of this utility model, the fixing block 69 is made of insulating material and is overmolded onto the cable modules 6a and the metal shielding surrounds 65 to form a whole with the cable modules 6a and the metal shielding surrounds 65. In the embodiment illustrated in this utility model, the fixing block 69 is embedded in the groove of the cable module 6a during molding to increase the bonding force between the two. Of course, those skilled in the art will understand that the plurality of cable modules 6a can also be fixed to the fixing block 69 by assembly or other methods, which will not be described in detail here.

[0155] Please combine Figure 42 As shown, the fixing block 69 includes a base portion 690, a first positioning block 691 connected to one side of the base portion 690 and protruding from the base portion 690, and a second positioning block 692 connected to the other side of the base portion 690 and protruding from the base portion 690. In the embodiment illustrated in this utility model, the first positioning block 691 is used to be received in the first mounting slot 561, and the second positioning block 692 is used to be received in the second mounting slot 571.

[0156] Each cable module 6a includes an insulator 64, a terminal module 60 mounted on the insulator 64, a cable 67 electrically connected to the terminal module 60, a shielding clamp 68 holding the cable 67, and a covering block 695 at least partially fixed to the terminal module 60, the shielding clamp 68, and the cable 67. The metal shielding surround 65 is at least partially sleeved on the insulator 64, the terminal module 60, and the covering block 695. The technical term "electrical connection" as used throughout this utility model refers to either a contact connection or a non-contact connection, wherein a non-contact connection includes using a transition element to achieve the connection.

[0157] In the embodiment illustrated in this utility model, the covering block 695 is made of insulating material and is overmolded onto the insulator 64, the terminal module 60, the shielding clamp 68, and the cable 67 to form a whole.

[0158] The terminal module 60 includes a retaining block 601 and a plurality of cable conductive terminals 62 fixed to the retaining block 601. In one embodiment of the present invention, the cable conductive terminals 62 are inserted into the retaining block 601. Of course, in other embodiments, the cable conductive terminals 62 can also be fixed to the retaining block 601 by assembly. In the embodiment illustrated in the present invention, the retaining block 601 includes an opening groove 6011, which extends circumferentially along the retaining block 601.

[0159] Please combine Figures 46 to 51 As shown in the illustrated embodiment of this utility model, each set of cable conductive terminals 62 includes a mating portion 621, a cable connecting portion 622, and an intermediate portion 623 connecting the mating portion 621 and the cable connecting portion 622. The intermediate portion 623 is at least partially fixed to the retaining block 601. The mating portion 621 extends out of the retaining block 601 to contact the first conductive terminal 31 and the second conductive terminal 32 of the electrical connector 100. The cable connecting portion 622 extends out of the retaining block 601 to be electrically connected to the cable 67. In one embodiment of this utility model, the two intermediate portions 623 of a set of cable conductive terminals 62 are narrow-edge coupled. Of course, those skilled in the art will understand that in other embodiments of this utility model, the two intermediate portions 623 of a set of cable conductive terminals 62 may also be wide-edge coupled.

[0160] In one embodiment of this invention, each terminal module 60 contains two cable conductive terminals 62, both of which are mating signal terminals. These two mating signal terminals form a differential signal pair to improve the signal transmission rate.

[0161] Please combine Figures 48 to 51As shown in the illustrated embodiment of this utility model, the mating portion 621 of each cable conductive terminal 62 has a two-half structure. Each mating portion 621 of the cable conductive terminal 62 includes a first elastic arm 6211, a second elastic arm 6212 opposite to the first elastic arm 6211, and a connecting wall portion 6213 connecting one side of the first elastic arm 6211 and one side of the second elastic arm 6212. The first elastic arm 6211 includes a first tail end portion 6211a connected to the intermediate portion 623 and a first contact arm 6211b. The first contact arm 6211b has a first end portion 6211c located at its end. The second elastic arm 6212 includes a second tail end portion 6212a abutting against the first tail end portion 6211a and a forward-extending second contact arm 6212b. The second contact arm 6212b has a second end portion 6212c located at its end. The connecting wall portion 6213 is located between the first contact arm 6211b and the first tail end portion 6211a, and the connecting wall portion 6213 is located between the second contact arm 6212b and the second tail end portion 6212a.

[0162] In the embodiment illustrated in this utility model, the first elastic arm 6211 and the second elastic arm 6212 are connected to each other only through the connecting wall portion 6213. In other words, the position on the cable conductive terminal 62 opposite to the connecting wall portion 6213 is a slot 6214 formed between the first elastic arm 6211 and the second elastic arm 6212, thereby giving the first elastic arm 6211 and the second elastic arm 6212 better elastic deformation capability. In the embodiment illustrated in this utility model, the cable conductive terminal 62 includes a clamping space 6210 located between the first elastic arm 6211 and the second elastic arm 6212 to accommodate the first contact portion 312 and the second contact portion 322 of the differential signal terminal of the electrical connector 100. The first end portion 6211c and the second end portion 6212c together form a flared shape to guide the first contact portion 312 and the second contact portion 322 of the differential signal terminal into the clamping space 6210.

[0163] The cable conductive terminal 62 of this invention features a second tail end 6212a that contacts the first tail end 6211a. In one embodiment, the second tail end 6212a is welded to the first tail end 6211a. Those skilled in the art will understand that when a signal is transmitted through the second elastic arm 6212, the signal can be transmitted via the following path: second elastic arm 6212 → second tail end 6212a → first tail end 6211a → middle portion 623 → cable connection portion 622 → cable 67. In other words, when a signal is transmitted through the second elastic arm 6212, the signal does not necessarily have to pass through the connecting wall portion 6213 to reach the cable 67, thereby improving signal transmission efficiency.

[0164] In the illustrated embodiment of this utility model, each insulator 64 is provided with a first end face 641, a second end face 642 opposite to the first end face 641, and a terminal receiving hole 640 extending along a first direction A1-A1 through the first end face 641 and the second end face 642. In the illustrated embodiment of this utility model, the insulator 64 is generally cuboid in shape, including a first outer side wall 643 and a second outer side wall 644 opposite to the first outer side wall 643. The first outer side wall 643 is also provided with a plurality of first openings 6431 extending through the first outer side wall 643 and communicating with the terminal receiving hole 640. The second outer side wall 644 is also provided with a plurality of second openings 6441 extending through the second outer side wall 644 and communicating with the terminal receiving hole 640. Furthermore, the insulator 64 is also provided with a slotted portion 645 communicating with the terminal receiving hole 640, the slotted portion 645 being configured for adjusting impedance.

[0165] The cable 67 includes a core 671 for electrical connection to a cable connection portion 622 of a differential signal terminal, an insulating layer 672 wrapped around the core 671, and a shielding layer 673 located outside the insulating layer 672. In one embodiment of the present invention, the core 671 is welded to the cable connection portion 622 of the differential signal terminal. In the embodiment illustrated in the present invention, the shielding layer 673 is in contact with the shielding clamp 68.

[0166] In the embodiment illustrated in this utility model, the shielding clamp 68 is made of metal and includes a first clamping portion 681 and a second clamping portion 682. The first clamping portion 681 and the second clamping portion 682 are clamped and fixed to the cable 67, and both the first clamping portion 681 and the second clamping portion 682 are in contact with the shielding layer 673. In the embodiment illustrated in this utility model, the shielding layer 673 is clamped between the first clamping portion 681 and the second clamping portion 682.

[0167] Of course, those skilled in the art will understand that the cable 67 can be a single-ground wire, double-ground wire, or no-ground wire cable as in the prior art. When the cable 67 is a single-ground wire or double-ground wire cable, the ground wire is in contact with the shielding clamp 68 to achieve grounding conduction. When the cable 67 is a no-ground wire cable, the cable 67 is provided with a shielding layer, and the shielding layer is in contact with the shielding clamp 68 to achieve grounding conduction.

[0168] In the embodiment illustrated in this utility model, the first clamping plate portion 681 includes a first clamping portion 6810, a first extending tab portion 6811 extending from the first clamping portion 6810 to one side, and a second extending tab portion 6812 extending from the first clamping portion 6810 to the other side. The first clamping portion 6810 has an arc-shaped first inner surface 6810a and a first through hole 6810b penetrating the first clamping portion 6810.

[0169] The second clamping plate portion 682 includes a second clamping portion 6820, a third insert portion 6821 extending from the second clamping portion 6820 to one side, and a fourth insert portion 6822 extending from the second clamping portion 6820 to the other side. The second clamping portion 6820 has an arc-shaped second inner surface 6820a and a second through hole 6820b penetrating the second clamping portion 6820.

[0170] The first clamping part 6810 and the second clamping part 6820 together clamp the cable 67. The first through hole 6810b and the second through hole 6820b can be filled with solder, thereby facilitating the welding of the shielding plate 68 to the shielding layer 673.

[0171] In the embodiment illustrated in this utility model, the first extended protrusion 6811 and the third insert portion 6821 abut against each other to form a first insert protrusion 6813; the second extended protrusion 6812 and the fourth insert portion 6822 abut against each other to form a second insert protrusion 6814. Both the first insert protrusion 6813 and the second insert protrusion 6814 are in contact with the metal shielding surround 65.

[0172] In one embodiment of this utility model, the covering block 695 is formed over the terminal module 60, the shielding clamp 68, and the cable 67, so as to integrate them into a whole. Specifically, the covering block 695 is embedded in the opening groove 6011 of the retaining block 601 to improve the reliability of their connection. The first insertion tab 6813 and the second insertion tab 6814 extend to both sides and protrude from the covering block 695.

[0173] The metal shielding surround 65 is at least partially fitted onto the insulator 64, the terminal module 60, and the covering block 695 to provide better shielding for the cable conductive terminal 62. The metal shielding surround 65 includes a shielding cavity 650, in which the insulator 64 and the terminal module 60 are at least partially located.

[0174] Please combine Figure 41 , Figure 46 as well as Figure 47 As shown, in one embodiment of this utility model, the metal shielding surround 65 is an integral structure, comprising a first outer wall portion 655, a second outer wall portion 656 opposite to the first outer wall portion 655, a third outer wall portion 657, and a fourth outer wall portion 658 opposite to the third outer wall portion 657. The shielding cavity 650 is formed by the first outer wall portion 655, the second outer wall portion 656, the third outer wall portion 657, and the fourth outer wall portion 658. Specifically, in the embodiment illustrated in this utility model, the first outer wall portion 655 is provided with a first clamping groove 653, and the second outer wall portion 656 is provided with a second clamping groove 654. The first insertion tab 6813 is inserted into the first clamping groove 653, and the second insertion tab 6814 is inserted into the second clamping groove 654 to improve the shielding effect. Preferably, after the first insertion tab 6813 is inserted into the first clamping groove 653, it is then welded and fixed to the first outer wall portion 655; after the second insertion tab 6814 is inserted into the second clamping groove 654, it is then welded and fixed to the second outer wall portion 656.

[0175] The metal shielding surround 65 has several inclined chamfered portions 659 at its ends to prevent the insulator 64 from detaching from the metal shielding surround 65 after being received in the shielding cavity 650. In the embodiment illustrated in this utility model, the fourth outer wall portion 658 is further provided with an inwardly protruding anti-retraction spring 6581, which is configured to lock with the insulator 64 to improve the tightness of the fit between the metal shielding surround 65 and the insulator 64 and prevent them from separating. In the embodiment illustrated in this utility model, the anti-retraction spring 6581 is integrally stamped inward from the fourth outer wall portion 658, and the anti-retraction spring 6581 is cantilevered, with its free end abutting against the insulator 64.

[0176] Please combine Figure 41 As shown in the illustrated embodiment of this utility model, the metal shielding surrounding member 65 further includes an outwardly integrally stamped contact spring arm 6550. In the illustrated embodiment of this utility model, the contact spring arm 6550 includes a first contact spring arm 6551 and a second contact spring arm 6552. There is at least one first contact spring arm 6551 and at least one second contact spring arm 6552. The first contact spring arm 6551 and the second contact spring arm 6552 extend in opposite directions. The first contact spring arm 6551 and the second contact spring arm 6552 are located on two adjacent outer wall portions in the circumferential direction of the metal shielding surrounding member 65.

[0177] When the cable connector 200 is mated with the electrical connector 100, the metal shielding surrounding member 65 of the cable connector 200 passes through the module receiving hole 151 to be at least partially housed in the shielding cavity 25 of the electrical connector 100; the mating portion 621 of the cable conductive terminal 62 contacts the first contact portion 312 of the first conductive terminal 31 and the second contact portion 322 of the second conductive terminal 32; the contact spring arm 6550 elastically abuts against the shielding housing assembly 2, thereby improving the shielding effect. Specifically, the first contact spring arm 6551 elastically abuts against the shielding side plate 21 and the third surrounding wall 223 of the shielding sheet 22, respectively; the second contact spring arm 6552 elastically abuts against the first surrounding wall 221 and the second surrounding wall 222 of the shielding sheet 22, respectively.

[0178] Of course, those skilled in the art will understand that the contact spring arm 6550 can also be disposed on the shielding housing assembly 2. The contact spring arm 6550 protrudes into the shielding cavity 25 to contact the metal shielding surround 65 of the cable connector 200. For example, the contact spring arm 6550 can be disposed on at least one of the shielding side plate 21 and the connecting plate 23.

[0179] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of the present utility model should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. An electrical connector, characterized in that, include: The mounting frame includes a base plate portion, a first wall portion connected to the base plate portion and located on a first side of the base plate portion, and a mounting space; the inner side of the first wall portion is provided with a first mounting groove, which communicates with the mounting space; and A shielding module, at least partially housed in the installation space, the shielding module including a shielding housing assembly and a plurality of terminal modules, the shielding housing assembly including a plurality of shielding cavities, the terminal modules being at least partially housed in the shielding cavities; The shielding housing assembly includes a shielding side plate and a connecting plate. The connecting plate is attached to the shielding side plate. The shielding side plate includes a plate body and a first insert portion located at one end of the plate body. The connecting plate has a base portion and a first protrusion portion located at one end of the base portion. The first protrusion portion and the first insert portion are inserted together into the first mounting groove.

2. The electrical connector as described in claim 1, characterized in that: The first wall portion is provided with a first locking hole that communicates with the first mounting groove; The first insert portion is provided with a first retaining spring arm, and the first retaining spring arm is provided with a first locking protrusion; The first protrusion is provided with a first locking spring arm, and the first locking spring arm is provided with a first fastening protrusion. The first fastening protrusion and the first locking protrusion are together locked and fixed in the first locking hole.

3. The electrical connector as described in claim 1, characterized in that: The mounting frame includes a second wall portion connected to the base plate portion and located on a second side of the base plate portion, and a second mounting groove is provided on the inner side of the second wall portion, and the second mounting groove is connected to the mounting space. The shielding side plate includes a second insert portion located at the other end of the plate body portion; the connecting plate is provided with a second protrusion portion located at the other end of the base portion, and the second protrusion portion and the second insert portion are inserted together into the second mounting groove.

4. The electrical connector as described in claim 3, characterized in that: The second wall portion is provided with a second locking hole that communicates with the second mounting groove; The second insert portion is provided with a second retaining arm, and the second retaining arm is provided with a second locking protrusion; The second protrusion is provided with a second locking spring arm, and the second locking spring arm is provided with a second fastening protrusion. The second fastening protrusion and the second locking protrusion are together locked and fixed in the second locking hole.

5. The electrical connector as described in claim 1, characterized in that: The connecting plate is provided with abutment springs that elastically abut against the shielding side plate.

6. The electrical connector as claimed in claim 1, characterized in that: The connecting plate is provided with a solder tail configured to be soldered onto the circuit board.

7. The electrical connector as claimed in claim 1, characterized in that: The substrate is provided with a plurality of module receiving holes, which correspond to and are interconnected with the shielding cavity.

8. The electrical connector as claimed in claim 7, characterized in that: The module's receiving holes are arranged in a grid pattern.

9. The electrical connector as claimed in claim 7, characterized in that: Each module receiving hole is a closed hole surrounding the entire perimeter.

10. The electrical connector as claimed in claim 1, characterized in that: The shielding housing assembly includes a shielding sheet that mates with the shielding side plate. The shielding sheet includes a first surrounding wall, a second surrounding wall opposite to the first surrounding wall, and a third surrounding wall connected between the first surrounding wall and the second surrounding wall. The shielding cavity is formed by the shielding side plate and the shielding sheet.

11. The electrical connector as claimed in claim 10, characterized in that: The shielding side plate includes a first receiving groove and a second receiving groove. The first surrounding wall is provided with a first mounting protrusion that inserts into the first receiving groove, and the second surrounding wall is provided with a second mounting protrusion that inserts into the second receiving groove.

12. The electrical connector as claimed in claim 11, characterized in that: The first mounting protrusion is welded and fixed to the plate body, and the second mounting protrusion is welded and fixed to the plate body.

13. The electrical connector as claimed in claim 10, characterized in that: The plate portion includes a first positioning groove, and the third surrounding wall is provided with a second positioning groove; The terminal module includes an insulating block, a first conductive terminal fixed to the insulating block, and a second conductive terminal fixed to the insulating block; the insulating block is housed in the shielding cavity, and the insulating block has a first protrusion inserted into the first positioning groove and a second protrusion inserted into the second positioning groove; The first conductive terminal has a first contact portion that protrudes from the insulating block and extends into the shielding cavity, and the second conductive terminal has a second contact portion that protrudes from the insulating block and extends into the shielding cavity.

14. The electrical connector as claimed in claim 1, characterized in that: The mounting frame includes an inner frame and an outer frame, the inner frame and the outer frame are separately arranged, and the inner frame is located in the outer frame.

15. The electrical connector as claimed in claim 14, characterized in that: The inner frame is an insulated inner frame, and the outer frame is a metal outer frame.

16. The electrical connector as claimed in claim 1, characterized in that: The mounting frame is a one-piece structure and is a metal frame.

17. A connector assembly, characterized in that, include: An electrical connector, wherein the electrical connector is the electrical connector as described in any one of claims 1 to 16; as well as A docking connector, wherein the docking connector is provided with a metal shielding surround; The metal shielding surround is configured to pass through the module receiving hole of the electrical connector to be at least partially received within the shielding cavity of the electrical connector.

18. The connector assembly as claimed in claim 17, characterized in that: The metal shielding surround is provided with a contact spring arm, which elastically abuts against the shielding housing assembly of the electrical connector.

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