First terminal module, first electric connector and connector assembly

Abstract

A first terminal module comprises a first insulating block, a first terminal group and a first shielding sleeve sleeved on the first insulating block. The first terminal group comprises a first conductive terminal and a second conductive terminal. The first conductive terminal comprises a first contact part protruding into the first accommodating cavity. The second conductive terminal comprises a second contact part protruding into the first accommodating cavity. And the first contact part and the second contact part are arranged in an offset manner. The first shielding sleeve is provided with a first tail end part and a plurality of first open slots penetrating through the first tail end part, and the plurality of first open slots are distributed along the circumferential direction of the first shielding sleeve. According to the invention, the docking difficulty is reduced, and the signal transmission quality is improved. The invention also discloses a first electric connector comprising the first terminal module and a connector assembly comprising the first electric connector.

Description

Technical Field

[0001] This invention relates to a first terminal module, a first electrical connector and its components, belonging to the field of connector technology. Background Technology

[0002] Connector assemblies in related technologies typically include a first electrical connector and a second electrical connector that mate with each other. The first electrical connector typically includes a first insulating body and a plurality of first conductive terminals mounted on the first insulating body. The second electrical connector typically includes a second insulating body and a plurality of second conductive terminals mounted on the second insulating body. When the first electrical connector mates with the second electrical connector, the first conductive terminals and the second conductive terminals come into contact with each other to achieve an electrical connection.

[0003] However, as the requirements for signal transmission of electrical connectors continue to increase, there is still room for improvement in electrical connectors and their components in related technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a first terminal module, a first electrical connector and its components with an improved structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a first terminal module, comprising:

[0006] The first insulating block includes a first protrusion and a second protrusion, the first protrusion having a first opening and the second protrusion having a second opening;

[0007] A first terminal group is disposed on the first insulating block, the first terminal group including a first conductive terminal and a second conductive terminal; the first conductive terminal includes a first elastic arm disposed in the first opening, the first elastic arm having a first contact portion; the second conductive terminal includes a second elastic arm disposed in the second opening, the second elastic arm having a second contact portion; the first contact portion and the second contact portion are offset from each other; and

[0008] A first shielding sleeve is fitted onto the first insulating block to form a first receiving cavity between the first insulating block and the first shielding sleeve. The first contact portion and the second contact portion both protrude into the first receiving cavity.

[0009] The first shielding sleeve has a first end portion and a plurality of first slots penetrating the first end portion, the plurality of first slots being distributed along the circumference of the first shielding sleeve.

[0010] As a further improved technical solution of the present invention, the first insulating block includes a first base, the first protrusion and the second protrusion both protrude from the first base, and the first protrusion and the second protrusion are arranged opposite to each other;

[0011] The first receiving cavity includes a first docking cavity located on one side of the first protrusion and the second protrusion, and a second docking cavity located on the other side of the first protrusion and the second protrusion;

[0012] The first contact portion protrudes into the first docking cavity, and the second contact portion protrudes into the second docking cavity.

[0013] As a further improved technical solution of the present invention, the first protrusion is fan-shaped, the first protrusion includes a first side and a second side perpendicular to the first side, the first opening penetrates the first side and is connected to the first docking cavity, and the first elastic arm is located in the first opening.

[0014] The second protrusion is fan-shaped and includes a third side and a fourth side perpendicular to the third side. The second opening penetrates the third side and communicates with the second docking cavity. The second elastic arm is located in the second opening.

[0015] As a further improvement of the present invention, the first protruding post includes a first arcuate surface connecting the first side surface and the second side surface;

[0016] The second protruding post includes a second arcuate surface connecting the third side and the fourth side;

[0017] The plurality of first slots include a first slit, a second slit, a third slit, and a fourth slit sequentially distributed along the circumference of the first shielding sleeve. The first shielding sleeve includes a first arc-shaped wall located between the first slit and the second slit, a second arc-shaped wall located between the third slit and the fourth slit, a third arc-shaped wall located between the first slit and the fourth slit, and a fourth arc-shaped wall located between the second slit and the third slit. The first arc-shaped surface of the first protrusion abuts against the inner side of the first arc-shaped wall, the second arc-shaped surface of the second protrusion abuts against the inner side of the second arc-shaped wall, the third arc-shaped wall is exposed in the first docking cavity, and the fourth arc-shaped wall is exposed in the second docking cavity.

[0018] As a further improved technical solution of the present invention, the third arc-shaped wall is provided with a first outward flange at the free end of the third arc-shaped wall, and the fourth arc-shaped wall is provided with a second outward flange at the free end of the fourth arc-shaped wall.

[0019] As a further improvement of the present invention, the first elastic arm and the second elastic arm are arranged at an angle.

[0020] As a further improvement of the present invention, the first conductive terminal includes a first bent end that bends outward from the first contact portion, and the second conductive terminal includes a second bent end that bends outward from the second contact portion, wherein the bending directions of the first bent end and the second bent end are opposite.

[0021] As a further improved technical solution of the present invention, the first conductive terminal includes a first fixing part fixed to the first insulating block and a first mounting part extending from the first fixing part, and the first elastic arm extends from the first fixing part.

[0022] The second conductive terminal includes a second fixing part fixed to the first insulating block and a second mounting part extending from the second fixing part, and the second elastic arm extends from the second fixing part;

[0023] Both the first mounting part and the second mounting part are configured to be mounted on the first circuit board.

[0024] As a further improvement of the present invention, both the first mounting part and the second mounting part are arc-shaped and extend in a clockwise or counterclockwise direction.

[0025] The present invention also discloses a first electrical connector comprising:

[0026] A first insulating body, the first insulating body including a first base and a plurality of first wall portions protruding from the first base, the first base and the plurality of first wall portions together forming a first receiving space; and

[0027] A plurality of first terminal modules are mounted on the first base. Each first terminal module includes a first insulating block, a first terminal group disposed in the first insulating block, a first shielding sleeve sleeved on the first insulating block, and a first receiving cavity located between the first insulating block and the first shielding sleeve.

[0028] The first terminal group includes a first conductive terminal and a second conductive terminal; the first conductive terminal includes a first fixing part fixed to the first insulating block, a first elastic arm extending from the first fixing part, and a first mounting part extending from the first fixing part, the first elastic arm having a first contact part protruding into the first receiving cavity; the second conductive terminal includes a second fixing part fixed to the first insulating block, a second elastic arm extending from the second fixing part, and a second mounting part extending from the second fixing part, the second elastic arm having a second contact part protruding into the first receiving cavity; the first contact part and the second contact part are offset from each other;

[0029] The first shielding sleeve protrudes into the first receiving space; the first shielding sleeve is provided with a first end portion and a plurality of first slots penetrating the first end portion, the plurality of first slots being distributed along the circumference of the first shielding sleeve.

[0030] As a further improved technical solution of the present invention, the first insulating block includes a first base, a first protrusion protruding from the first base, and a second protrusion protruding from the first base, wherein the first protrusion and the second protrusion are disposed opposite to each other.

[0031] The first receiving cavity includes a first docking cavity located on one side of the first protrusion and the second protrusion, and a second docking cavity located on the other side of the first protrusion and the second protrusion;

[0032] The first contact portion protrudes into the first docking cavity, and the second contact portion protrudes into the second docking cavity.

[0033] As a further improved technical solution of the present invention, the first protrusion is fan-shaped, and the first protrusion includes a first side surface, a second side surface perpendicular to the first side surface, and a first opening that penetrates the first side surface and communicates with the first docking cavity, and the first elastic arm is located in the first opening.

[0034] The second protrusion is fan-shaped and includes a third side, a fourth side perpendicular to the third side, and a second opening that penetrates the third side and communicates with the second docking cavity. The second elastic arm is located in the second opening.

[0035] As a further improvement of the present invention, the first protruding post includes a first arcuate surface connecting the first side surface and the second side surface;

[0036] The second protruding post includes a second arcuate surface connecting the third side and the fourth side;

[0037] The plurality of first slots include a first slit, a second slit, a third slit, and a fourth slit sequentially distributed along the circumference of the first shielding sleeve. The first shielding sleeve includes a first arc-shaped wall located between the first slit and the second slit, a second arc-shaped wall located between the third slit and the fourth slit, a third arc-shaped wall located between the first slit and the fourth slit, and a fourth arc-shaped wall located between the second slit and the third slit. The first arc-shaped surface of the first protrusion abuts against the inner side of the first arc-shaped wall, the second arc-shaped surface of the second protrusion abuts against the inner side of the second arc-shaped wall, the third arc-shaped wall is exposed in the first docking cavity, and the fourth arc-shaped wall is exposed in the second docking cavity.

[0038] As a further improved technical solution of the present invention, the third arc-shaped wall is provided with a first outward flange at the free end of the third arc-shaped wall, and the fourth arc-shaped wall is provided with a second outward flange at the free end of the fourth arc-shaped wall.

[0039] As a further improved technical solution of the present invention, the plurality of first wall portions include a first side wall, a second side wall, a third side wall and a fourth side wall, wherein the first side wall and the second side wall are arranged face to face along a first direction, the third side wall and the fourth side wall are arranged face to face along a second direction, and the first direction and the second direction are perpendicular to each other.

[0040] The first protrusion and the second protrusion are arranged face to face along the second direction;

[0041] The first side and the third side are distributed along a fourth direction, which is inclined relative to the first direction and the second direction.

[0042] As a further improvement of the present invention, the first conductive terminal includes a first bent end that bends outward from the first contact portion, and the second conductive terminal includes a second bent end that bends outward from the second contact portion, wherein the bending directions of the first bent end and the second bent end are opposite.

[0043] As a further improved technical solution of the present invention, the first insulating body includes a first receiving groove located on the outer side of the first sidewall and a second receiving groove located on the outer side of the second sidewall. The outer side of the first sidewall is provided with a first keyway communicating with the first receiving groove, the outer side of the second sidewall is provided with a second keyway communicating with the second receiving groove, the third sidewall is provided with a first protruding rib protruding into the first receiving space, and the fourth sidewall is provided with a second protruding rib protruding into the first receiving space.

[0044] As a further improvement of the present invention, the first mounting portion of the first conductive terminal and the second mounting portion of the second conductive terminal are both configured to be mounted on the first circuit board.

[0045] As a further improvement of the present invention, both the first mounting part and the second mounting part are arc-shaped and extend in a clockwise or counterclockwise direction.

[0046] As a further improved technical solution of the present invention, the first base is provided with a first mounting groove and a second mounting groove, the first fixing part of the first conductive terminal is fixed in the first mounting groove, and the second fixing part of the second conductive terminal is fixed in the second mounting groove.

[0047] As a further improvement of the present invention, the first base is provided with a plurality of first terminal mounting holes, and the first terminal module is assembled and fixed in the corresponding first terminal mounting holes.

[0048] The present invention also discloses a connector assembly, which includes a first electrical connector and a second electrical connector that are mated to each other; the first electrical connector is the aforementioned first electrical connector; the second electrical connector has the same structure as the first electrical connector, but with a different mounting angle.

[0049] Compared to existing technologies, each first terminal module of the present invention includes a first insulating block, a first terminal group disposed in the first insulating block, and a first shielding sleeve sleeved on the first insulating block; the first terminal group includes a first conductive terminal and a second conductive terminal; the first conductive terminal includes a first elastic arm, the first elastic arm having a first contact portion protruding into the first receiving cavity; the second conductive terminal includes a second elastic arm, the second elastic arm having a second contact portion protruding into the first receiving cavity; the first contact portion and the second contact portion are offset; the first shielding sleeve protrudes into the first receiving space; the first shielding sleeve has a first end portion and a plurality of first slots penetrating the first end portion, the plurality of first slots being distributed circumferentially along the first shielding sleeve. The present invention reduces signal crosstalk by offsetting the first contact portion and the second contact portion; furthermore, the present invention improves the shielding effect on the first conductive terminal and the second conductive terminal by setting the first shielding sleeve, thereby improving the quality of signal transmission. Moreover, distributing the plurality of first slots circumferentially along the first shielding sleeve gives the relevant parts of the first shielding sleeve a certain elastic deformation capability, thereby reducing the difficulty of connection. Attached Figure Description

[0050] Figure 1 This is a perspective view of the connector assembly of the present invention in one embodiment;

[0051] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0052] Figure 3 yes Figure 1 Partial exploded 3D diagram;

[0053] Figure 4 yes Figure 3 Further partial exploded view;

[0054] Figure 5 yes Figure 4 Another perspective of a partially exploded 3D view;

[0055] Figure 6 yes Figure 3 Top view of the first electrical connector in the middle;

[0056] Figure 7 yes Figure 6 A bottom view;

[0057] Figure 8 yes Figure 3 Partial exploded perspective view of the first electrical connector;

[0058] Figure 9 yes Figure 8 Another perspective of a partially exploded 3D view;

[0059] Figure 10 yes Figure 8 Partial exploded perspective view of the first terminal module;

[0060] Figure 11 yes Figure 10 Another perspective of a partially exploded 3D view;

[0061] Figure 12 yes Figure 10 Further exploded view;

[0062] Figure 13 yes Figure 12 Another perspective of the exploded 3D view;

[0063] Figure 14 yes Figure 6 A magnified view of part B within the middle frame;

[0064] Figure 15 yes Figure 7 A magnified view of part C within the middle frame;

[0065] Figure 16 yes Figure 4 Bottom view of the second electrical connector;

[0066] Figure 17 yes Figure 16 Top view;

[0067] Figure 18 This is a partial exploded perspective view of the second electrical connector;

[0068] Figure 19 yes Figure 18 Another perspective of a partially exploded 3D view;

[0069] Figure 20 yes Figure 18 Partial exploded perspective view of the first terminal module;

[0070] Figure 21 yes Figure 20 Another perspective of a partially exploded 3D view;

[0071] Figure 22 yes Figure 20 Further exploded view;

[0072] Figure 23 yes Figure 22 Another perspective of the exploded 3D view;

[0073] Figure 24 yes Figure 16 A magnified view of part D within the middle frame;

[0074] Figure 25 yes Figure 17 A magnified view of part E within the middle frame. Detailed Implementation

[0075] 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.

[0076] 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” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0077] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish 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 invention 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" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0078] Please refer to Figures 1 to 5 As shown, this invention discloses a connector assembly 300, which includes a first circuit board 101, a first electrical connector 100 mounted on the first circuit board 101, a second circuit board 201, and a second electrical connector 200 mounted on the second circuit board 201. In the illustrated embodiment, the first electrical connector 100 is surface-mounted (SMT) to the first circuit board 101, and the second electrical connector 200 is surface-mounted (SMT) to the second circuit board 201. In the illustrated embodiment, the first electrical connector 100 and the second electrical connector 200 are interlocked. The second electrical connector 200 has the same structure as the first electrical connector 100, but a different mounting angle, to maximize the sharing of parts and reduce costs. In the illustrated embodiment, the second electrical connector 200 is formed by rotating the first electrical connector 100 180° along the vertical plane and 90° along the horizontal plane.

[0079] Please combine Figures 6 to 9 As shown in the illustrated embodiment of the present invention, the first electrical connector 100 includes a first insulating body 1 and a plurality of first terminal modules 2.

[0080] In the embodiment illustrated in the present invention, the first insulating body 1 includes a first base 11 and a plurality of first wall portions 12 protruding from the first base 11. The first base 11 and the plurality of first wall portions 12 together form a first receiving space 10. The first base 11 is provided with a plurality of first terminal mounting holes 110, and the first terminal module 2 is assembled and fixed in the corresponding first terminal mounting holes 110.

[0081] In the embodiment illustrated in the present invention, the plurality of first wall portions 12 include a first side wall 121, a second side wall 122, a third side wall 123, and a fourth side wall 124, wherein the first side wall 121 and the second side wall 122 are arranged face to face along a first direction A1-A1 (e.g., left-right direction), the third side wall 123 and the fourth side wall 124 are arranged face to face along a second direction A2-A2 (e.g., front-back direction), and the first direction A1-A1 and the second direction A2-A2 are perpendicular to each other.

[0082] Please combine Figure 6 As shown, the first insulating body 1 includes a first receiving groove 125 located on the outer side of the first sidewall 121 and a second receiving groove 126 located on the outer side of the second sidewall 122. A first keyway 1211 communicating with the first receiving groove 125 is provided on the outer side of the first sidewall 121. A second keyway 1221 communicating with the second receiving groove 126 is provided on the outer side of the second sidewall 122. The third sidewall 123 has a first protruding rib 1231 extending into the first receiving space 10, and the fourth sidewall 124 has a second protruding rib 1241 extending into the first receiving space 10. In the embodiment illustrated in the figure, the first sidewall 121 and the second sidewall 122 are symmetrically arranged on both sides of the first receiving space 10, and the third sidewall 123 and the fourth sidewall 124 are symmetrically arranged on both sides of the first receiving space 10.

[0083] The first base 11 has a first mounting surface 111 and a first recess 112 recessed from the first mounting surface 111. The plurality of first terminal mounting holes 110 penetrate the first base 11 along a third direction A3-A3 (e.g., vertical direction). The third direction A3-A3 is perpendicular to the first direction A1-A1 and the second direction A2-A2.

[0084] In the embodiment illustrated in the present invention, the plurality of first terminal modules 2 are mounted in a matrix on the first base 11. The plurality of first terminal modules 2 are arranged in several rows and several columns along the first direction A1-A1 and the second direction A2-A2.

[0085] In the embodiments illustrated in this invention, each first terminal module 2 is identical, including a first insulating block 21, a first terminal group 22 disposed in the first insulating block 21, a first shielding sleeve 23 sleeved on the first insulating block 21, and a first receiving cavity 24 located between the first insulating block 21 and the first shielding sleeve 23.

[0086] The first insulating block 21 includes a first base 210, a first protrusion 211 protruding from the first base 210, and a second protrusion 212 protruding from the first base 210. The first protrusion 211 and the second protrusion 212 are arranged facing each other and side by side.

[0087] The first base 210 is provided with a first mounting groove 2101 and a second mounting groove 2102.

[0088] The first receiving cavity 24 includes a first docking cavity 241 located on one side (e.g., the left side) of the first protrusion 211 and the second protrusion 212, and a second docking cavity 242 located on the other side (e.g., the right side) of the first protrusion 211 and the second protrusion 212.

[0089] In the embodiment illustrated in the present invention, the first protrusion 211 is fan-shaped and includes a first side surface 2111, a second side surface 2112 perpendicular to the first side surface 2111, a first arcuate surface 2113 connecting the first side surface 2111 and the second side surface 2112, and a first opening 2114 penetrating the first side surface 2111 and communicating with the first docking cavity 241.

[0090] Similarly, the second protrusion 212 is fan-shaped and includes a third side surface 2121, a fourth side surface 2122 perpendicular to the third side surface 2121, a second arcuate surface 2123 connecting the third side surface 2121 and the fourth side surface 2122, and a second opening 2124 penetrating the third side surface 2121 and communicating with the second docking cavity 242. The first protrusion 211 and the second protrusion 212 are arranged face-to-face and spaced apart along the second direction A2-A2.

[0091] The first terminal group 22 includes a first conductive terminal 221 and a second conductive terminal 222. In one embodiment of the present invention, the first conductive terminal 221 and the second conductive terminal 222 form a differential pair. The first conductive terminal 221 includes a first fixing portion 2211 fixed to the first insulating block 21, a first elastic arm 2212 extending from the first fixing portion 2211, and a first mounting portion 2213 extending from the first fixing portion 2211. The first elastic arm 2212 is located in the first opening 2114. The first elastic arm 2212 has a first contact portion 2212a protruding into the first mating cavity 241 of the first receiving cavity 24. In the embodiment illustrated in the present invention, the first fixing portion 2211 is fixed in the first mounting groove 2101.

[0092] The second conductive terminal 222 includes a second fixing portion 2221 fixed to the first insulating block 21, a second elastic arm 2222 extending from the second fixing portion 2221, and a second mounting portion 2223 extending from the second fixing portion 2221. The second elastic arm 2222 is located in the second opening 2124. The second elastic arm 2222 has a second contact portion 2222a protruding into the second docking cavity 242 of the first receiving cavity 24. In the embodiment illustrated in the present invention, the second fixing portion 2221 is fixed in the second mounting groove 2102.

[0093] In the embodiment illustrated in the present invention, the first contact portion 2212a is offset from the second contact portion 2222a. The first side surface 2111 and the third side surface 2121 are distributed along a fourth direction A4-A4, which is inclined relative to the first direction A1-A1 and the second direction A2-A2.

[0094] Furthermore, in the embodiment illustrated in the present invention, the first conductive terminal 221 includes a first bent end 2215 bent outward from the first contact portion 2212a, and the second conductive terminal 222 includes a second bent end 2225 bent outward from the second contact portion 2222a, wherein the bending directions of the first bent end 2215 and the second bent end 2225 are opposite.

[0095] In the embodiment illustrated in the present invention, both the first mounting portion 2213 and the second mounting portion 2223 are arc-shaped and extend in a clockwise or counterclockwise direction.

[0096] The first shielding sleeve 23 protrudes into the first receiving space 10; the first shielding sleeve 23 is provided with a first end portion 230 and a plurality of first slots 231 penetrating the first end portion 230, the plurality of first slots 231 being distributed along the circumference of the first shielding sleeve 23.

[0097] Specifically, in the embodiment illustrated in the present invention, the plurality of first slots 231 include a first slit 2311, a second slit 2312, a third slit 2313, and a fourth slit 2314 sequentially distributed along the circumference of the first shielding sleeve 23. The first shielding sleeve 23 includes a first arc-shaped wall 2315 located between the first slit 2311 and the second slit 2312, a second arc-shaped wall 2316 located between the third slit 2313 and the fourth slit 2314, a third arc-shaped wall 2317 located between the first slit 2311 and the fourth slit 2314, and a fourth arc-shaped wall 2318 located between the second slit 2312 and the third slit 2313. The first arcuate surface 2113 of the first protrusion 211 abuts against the inner side of the first arcuate wall 2315, the second arcuate surface 2123 of the second protrusion 212 abuts against the inner side of the second arcuate wall 2316, the third arcuate wall 2317 is exposed in the first docking cavity 241, and the fourth arcuate wall 2318 is exposed in the second docking cavity 242. The third arcuate wall 2317 has a first outwardly flanged portion 2317a located at the free end of the third arcuate wall 2317, and the fourth arcuate wall 2318 has a second outwardly flanged portion 2318a located at the free end of the fourth arcuate wall 2318.

[0098] Please combine Figures 16 to 25 As shown in the illustrated embodiment of the present invention, the second electrical connector 200 includes a second insulating body 3 and a plurality of second terminal modules 4.

[0099] In the embodiment illustrated in the present invention, the second insulating body 3 includes a second base 31 and a plurality of second wall portions 32 protruding from the second base 31. The second base 31 and the plurality of second wall portions 32 together form a second receiving space 30. The second base 31 is provided with a plurality of second terminal mounting holes 310, and the second terminal module 4 is assembled and fixed in the corresponding second terminal mounting holes 310.

[0100] In the embodiment illustrated in the present invention, the plurality of second wall portions 32 include a fifth side wall 321, a sixth side wall 322, a seventh side wall 323 and an eighth side wall 324, wherein the fifth side wall 321 and the sixth side wall 322 are arranged face to face, and the seventh side wall 323 and the eighth side wall 324 are arranged face to face.

[0101] The second insulating body 3 includes a third receiving groove 325 located outside the seventh sidewall 323 and a fourth receiving groove 326 located outside the eighth sidewall 324. A third keyway 3231 communicating with the third receiving groove 325 is provided on the outer side of the seventh sidewall 323. A fourth keyway 3241 communicating with the fourth receiving groove 326 is provided on the outer side of the eighth sidewall 324. A third protruding rib 3211 protruding into the second receiving space 30 is provided on the fifth sidewall 321, and a fourth protruding rib 3221 protruding into the second receiving space 30 is provided on the sixth sidewall 322. In the illustrated embodiment of the present invention, the fifth sidewall 321 and the sixth sidewall 322 are symmetrically arranged on both sides of the second receiving space 30, and the seventh sidewall 323 and the eighth sidewall 324 are symmetrically arranged on both sides of the second receiving space 30.

[0102] The second base 31 has a second mounting surface 311 and a second recess 312 recessed from the second mounting surface 311. The plurality of second terminal mounting holes 310 penetrate the second base 31 along the third direction A3-A3.

[0103] In the embodiment illustrated in the present invention, the plurality of second terminal modules 4 are mounted in a matrix on the second base 31. The plurality of second terminal modules 4 are arranged in several rows and several columns along the first direction A1-A1 and the second direction A2-A2.

[0104] In the embodiments illustrated in this invention, each second terminal module 4 is identical, including a second insulating block 41, a second terminal group 42 disposed in the second insulating block 41, a second shielding sleeve 43 sleeved on the second insulating block 41, and a second receiving cavity 44 located between the second insulating block 41 and the second shielding sleeve 43.

[0105] The second insulating block 41 includes a second base 410, a third protrusion 411 protruding from the second base 410, and a fourth protrusion 412 protruding from the second base 410. The third protrusion 411 and the fourth protrusion 412 are arranged facing each other and side by side.

[0106] The second base 410 is provided with a third mounting groove 4101 and a fourth mounting groove 4102.

[0107] The second receiving cavity 44 includes a third docking cavity 441 located on one side of the third protrusion 411 and the fourth protrusion 412, and a fourth docking cavity 442 located on the other side of the third protrusion 411 and the fourth protrusion 412.

[0108] In the embodiment illustrated in the present invention, the third protrusion 411 is fan-shaped and includes a fifth side surface 4111, a sixth side surface 4112 perpendicular to the fifth side surface 4111, a third arcuate surface 4113 connecting the fifth side surface 4111 and the sixth side surface 4112, and a third opening 4114 penetrating the fifth side surface 4111 and communicating with the third docking cavity 441.

[0109] Similarly, the fourth protrusion 412 is fan-shaped and includes a seventh side surface 4121, an eighth side surface 4122 perpendicular to the seventh side surface 4121, a fourth arcuate surface 4123 connecting the seventh side surface 4121 and the eighth side surface 4122, and a fourth opening 4124 penetrating the seventh side surface 4121 and communicating with the fourth docking cavity 442. The third protrusion 411 and the fourth protrusion 412 are arranged face-to-face and spaced apart.

[0110] The second terminal group 42 includes a third conductive terminal 421 and a fourth conductive terminal 422. In one embodiment of the present invention, the third conductive terminal 421 and the fourth conductive terminal 422 form a differential pair. The third conductive terminal 421 includes a third fixing portion 4211 fixed to the second insulating block 41, a third elastic arm 4212 extending from the third fixing portion 4211, and a third mounting portion 4213 extending from the third fixing portion 4211. The third elastic arm 4212 is located in the third opening 4114. The third elastic arm 4212 has a third contact portion 4212a protruding into the third mating cavity 441 of the second receiving cavity 44. In the embodiment illustrated in the present invention, the third fixing portion 4211 is fixed in the third mounting groove 4101.

[0111] The fourth conductive terminal 422 includes a fourth fixing portion 4221 fixed to the second insulating block 41, a fourth elastic arm 4222 extending from the fourth fixing portion 4221, and a fourth mounting portion 4223 extending from the fourth fixing portion 4221. The fourth elastic arm 4222 is located in the fourth opening 4124. The fourth elastic arm 4222 has a fourth contact portion 4222a protruding into the fourth mating cavity 442 of the second receiving cavity 44. In the embodiment illustrated in the present invention, the fourth fixing portion 4221 is fixed in the fourth mounting groove 4102.

[0112] In the embodiment illustrated in the present invention, the third contact portion 4212a is offset from the fourth contact portion 4222a. The fifth side surface 4111 and the seventh side surface 4121 are distributed along the fifth direction A5-A5, which is inclined relative to the first direction A1-A1 and the second direction A2-A2.

[0113] Furthermore, in the embodiment illustrated in the present invention, the third conductive terminal 421 includes a third bent end 4215 bent outward from the third contact portion 4212a, and the fourth conductive terminal 422 includes a fourth bent end 4225 bent outward from the fourth contact portion 4222a, wherein the bending directions of the third bent end 4215 and the fourth bent end 4225 are opposite.

[0114] In the embodiment illustrated in the present invention, both the third mounting portion 4213 and the fourth mounting portion 4223 are arc-shaped and extend in a clockwise or counterclockwise direction.

[0115] The second shielding sleeve 43 protrudes into the second receiving space 30; the second shielding sleeve 43 is provided with a second end portion 430 and a plurality of second slots 431 penetrating the second end portion 430, the plurality of second slots 431 being distributed along the circumference of the second shielding sleeve 43.

[0116] Specifically, in the embodiment illustrated in the present invention, the plurality of second slots 431 include a fifth slit 4311, a sixth slit 4312, a seventh slit 4313, and an eighth slit 4314 sequentially distributed along the circumference of the second shielding sleeve 43. The second shielding sleeve 43 includes a fifth arc-shaped wall 4315 located between the fifth slit 4311 and the sixth slit 4312, a sixth arc-shaped wall 4316 located between the seventh slit 4313 and the eighth slit 4314, a seventh arc-shaped wall 4317 located between the fifth slit 4311 and the eighth slit 4314, and an eighth arc-shaped wall 4318 located between the sixth slit 4312 and the seventh slit 4313. The third arcuate surface 4113 of the third protrusion 411 abuts against the inner side of the fifth arcuate wall 4315, the fourth arcuate surface 4123 of the fourth protrusion 412 abuts against the inner side of the sixth arcuate wall 4316, the seventh arcuate wall 4317 is exposed in the third docking cavity 441, and the eighth arcuate wall 4318 is exposed in the fourth docking cavity 442. The seventh arcuate wall 4317 is provided with a third outwardly flanged portion 4317a located at the free end of the seventh arcuate wall 4317, and the eighth arcuate wall 4318 is provided with a fourth outwardly flanged portion 4318a located at the free end of the eighth arcuate wall 4318.

[0117] When the first electrical connector 100 and the second electrical connector 200 are plugged into each other, the fifth sidewall 321 is received in the first receiving groove 125, the sixth sidewall 322 is received in the second receiving groove 126, the third protruding rib 3211 is inserted into the first keyway 1211, and the fourth protruding rib 3221 is inserted into the second keyway 1221. Simultaneously, the first sidewall 121 is received in the third receiving groove 325, the second sidewall 122 is received in the fourth receiving groove 326, the first protruding rib 1231 is inserted into the third keyway 3231, and the second protruding rib 1241 is inserted into the fourth keyway 3241. The first terminal module 2 and the second terminal module 4 are plugged into each other. The third protrusion 411 and the fourth protrusion 412 are respectively inserted into the first docking cavity 241 and the second docking cavity 242. The first protrusion 211 and the second protrusion 212 are respectively inserted into the third docking cavity 441 and the fourth docking cavity 442. The third contact portion 4212a of the third conductive terminal 421 and the fourth contact portion 4222a of the fourth conductive terminal 422 are respectively in contact with the first contact portion 2212a of the first conductive terminal 221 and the second contact portion 2222a of the second conductive terminal 222 to achieve electrical connection.

[0118] Compared to the prior art, the first terminal module 2 of the present invention includes a first insulating block 21, a first terminal group 22 disposed in the first insulating block 21, and a first shielding sleeve 23 sleeved on the first insulating block 21; the first terminal group 22 includes a first conductive terminal 221 and a second conductive terminal 222; the first conductive terminal 221 includes a first fixing part 2211 fixed to the first insulating block 21, a first elastic arm 2212 extending from the first fixing part 2211, and a first mounting part 2213 extending from the first fixing part 2211, the first elastic arm 2212 having a first contact part 2212a protruding into the first receiving cavity 24; the second conductive terminal 222... The device includes a second fixing portion 2221 fixed to the first insulating block 21, a second elastic arm 2222 extending from the second fixing portion 2221, and a second mounting portion 2223 extending from the second fixing portion 2221. The second elastic arm 2222 has a second contact portion 2222a protruding into the first receiving cavity 24. The first contact portion 2212a and the second contact portion 2222a are offset from each other. The first shielding sleeve 23 protrudes into the first receiving space 10. The first shielding sleeve 23 has a first end portion 230 and a plurality of first slots 231 penetrating the first end portion 230. The plurality of first slots 231 are distributed circumferentially along the first shielding sleeve 23. By offsetting the first contact portion 2212a and the second contact portion 2222a, the present invention reduces signal crosstalk. In addition, by setting the first shielding sleeve 23, the present invention improves the shielding effect on the first conductive terminal 221 and the second conductive terminal 222, thereby improving the quality of signal transmission. Furthermore, by distributing the plurality of first slots 231 along the circumference of the first shielding sleeve 23, the relevant parts of the first shielding sleeve 23 are made to have a certain elastic deformation capability, thereby reducing the difficulty of docking.

[0119] The second terminal module 4 of the present invention has the same beneficial effects as the first terminal module 2, which will not be described in detail here.

[0120] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The 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 above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A first terminal module, characterized in that, include: The first insulating block includes a first protrusion and a second protrusion, the first protrusion having a first opening and the second protrusion having a second opening; A first terminal group is disposed on the first insulating block, the first terminal group including a first conductive terminal and a second conductive terminal; the first conductive terminal includes a first elastic arm disposed in the first opening, the first elastic arm having a first contact portion; the second conductive terminal includes a second elastic arm disposed in the second opening, the second elastic arm having a second contact portion; the first contact portion and the second contact portion are offset from each other; and A first shielding sleeve is fitted onto the first insulating block to form a first receiving cavity between the first insulating block and the first shielding sleeve. The first contact portion and the second contact portion both protrude into the first receiving cavity. The first shielding sleeve has a first end portion and a plurality of first slots penetrating the first end portion, the plurality of first slots being distributed along the circumference of the first shielding sleeve.

2. The first terminal module as described in claim 1, characterized in that: The first insulating block includes a first base, and the first protrusion and the second protrusion both protrude from the first base, with the first protrusion and the second protrusion disposed opposite to each other; The first receiving cavity includes a first docking cavity located on one side of the first protrusion and the second protrusion, and a second docking cavity located on the other side of the first protrusion and the second protrusion; The first contact portion protrudes into the first docking cavity, and the second contact portion protrudes into the second docking cavity.

3. The first terminal module as described in claim 2, characterized in that: The first protrusion is fan-shaped and includes a first side and a second side perpendicular to the first side. The first opening penetrates the first side and is connected to the first docking cavity. The first elastic arm is located in the first opening. The second protrusion is fan-shaped and includes a third side and a fourth side perpendicular to the third side. The second opening penetrates the third side and communicates with the second docking cavity. The second elastic arm is located in the second opening.

4. The first terminal module as described in claim 3, characterized in that: The first protruding post includes a first arcuate surface connecting the first side surface and the second side surface; The second protruding post includes a second arcuate surface connecting the third side and the fourth side; The plurality of first slots include a first slit, a second slit, a third slit, and a fourth slit sequentially distributed along the circumference of the first shielding sleeve. The first shielding sleeve includes a first arc-shaped wall located between the first slit and the second slit, a second arc-shaped wall located between the third slit and the fourth slit, a third arc-shaped wall located between the first slit and the fourth slit, and a fourth arc-shaped wall located between the second slit and the third slit. The first arc-shaped surface of the first protrusion abuts against the inner side of the first arc-shaped wall, the second arc-shaped surface of the second protrusion abuts against the inner side of the second arc-shaped wall, the third arc-shaped wall is exposed in the first docking cavity, and the fourth arc-shaped wall is exposed in the second docking cavity.

5. The first terminal module as described in claim 4, characterized in that: The third arc-shaped wall is provided with a first outward flange at the free end of the third arc-shaped wall, and the fourth arc-shaped wall is provided with a second outward flange at the free end of the fourth arc-shaped wall.

6. The first terminal module as described in claim 1, characterized in that: The first elastic arm and the second elastic arm are arranged at an angle.

7. The first terminal module as described in claim 1, characterized in that: The first conductive terminal includes a first bent end that bends outward from the first contact portion, and the second conductive terminal includes a second bent end that bends outward from the second contact portion, wherein the bending directions of the first bent end and the second bent end are opposite.

8. The first terminal module as described in claim 1, characterized in that: The first conductive terminal includes a first fixing part fixed to the first insulating block and a first mounting part extending from the first fixing part, and the first elastic arm extends from the first fixing part. The second conductive terminal includes a second fixing part fixed to the first insulating block and a second mounting part extending from the second fixing part, and the second elastic arm extends from the second fixing part; Both the first mounting part and the second mounting part are configured to be mounted on the first circuit board.

9. The first terminal module as described in claim 8, characterized in that: Both the first mounting portion and the second mounting portion are arc-shaped and extend in a clockwise or counterclockwise direction.

10. A first electrical connector, characterized in that, include: A first insulating body, the first insulating body including a first base and a plurality of first wall portions protruding from the first base, the first base and the plurality of first wall portions together forming a first receiving space; and A plurality of first terminal modules are mounted on the first base. Each first terminal module includes a first insulating block, a first terminal group disposed in the first insulating block, a first shielding sleeve sleeved on the first insulating block, and a first receiving cavity located between the first insulating block and the first shielding sleeve. The first terminal group includes a first conductive terminal and a second conductive terminal; the first conductive terminal includes a first fixing part fixed to the first insulating block, a first elastic arm extending from the first fixing part, and a first mounting part extending from the first fixing part, the first elastic arm having a first contact part protruding into the first receiving cavity; the second conductive terminal includes a second fixing part fixed to the first insulating block, a second elastic arm extending from the second fixing part, and a second mounting part extending from the second fixing part, the second elastic arm having a second contact part protruding into the first receiving cavity; the first contact part and the second contact part are offset from each other; The first shielding sleeve protrudes into the first receiving space; the first shielding sleeve is provided with a first end portion and a plurality of first slots penetrating the first end portion, the plurality of first slots being distributed along the circumference of the first shielding sleeve.

11. The first electrical connector as claimed in claim 10, characterized in that: The first insulating block includes a first base, a first protrusion protruding from the first base, and a second protrusion protruding from the first base, wherein the first protrusion and the second protrusion are disposed opposite to each other; The first receiving cavity includes a first docking cavity located on one side of the first protrusion and the second protrusion, and a second docking cavity located on the other side of the first protrusion and the second protrusion; The first contact portion protrudes into the first docking cavity, and the second contact portion protrudes into the second docking cavity.

12. The first electrical connector as claimed in claim 11, characterized in that: The first protrusion is fan-shaped and includes a first side, a second side perpendicular to the first side, and a first opening that penetrates the first side and communicates with the first docking cavity. The first elastic arm is located in the first opening. The second protrusion is fan-shaped and includes a third side, a fourth side perpendicular to the third side, and a second opening that penetrates the third side and communicates with the second docking cavity. The second elastic arm is located in the second opening.

13. The first electrical connector as claimed in claim 12, characterized in that: The first protruding post includes a first arcuate surface connecting the first side surface and the second side surface; The second protruding post includes a second arcuate surface connecting the third side and the fourth side; The plurality of first slots include a first slit, a second slit, a third slit, and a fourth slit sequentially distributed along the circumference of the first shielding sleeve. The first shielding sleeve includes a first arc-shaped wall located between the first slit and the second slit, a second arc-shaped wall located between the third slit and the fourth slit, a third arc-shaped wall located between the first slit and the fourth slit, and a fourth arc-shaped wall located between the second slit and the third slit. The first arc-shaped surface of the first protrusion abuts against the inner side of the first arc-shaped wall, the second arc-shaped surface of the second protrusion abuts against the inner side of the second arc-shaped wall, the third arc-shaped wall is exposed in the first docking cavity, and the fourth arc-shaped wall is exposed in the second docking cavity.

14. The first electrical connector as claimed in claim 13, characterized in that: The third arc-shaped wall is provided with a first outward flange at the free end of the third arc-shaped wall, and the fourth arc-shaped wall is provided with a second outward flange at the free end of the fourth arc-shaped wall.

15. The first electrical connector as claimed in claim 13, characterized in that: The plurality of first wall portions include a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, wherein the first sidewall and the second sidewall are arranged face to face along a first direction, the third sidewall and the fourth sidewall are arranged face to face along a second direction, and the first direction and the second direction are perpendicular to each other; The first protrusion and the second protrusion are arranged face to face along the second direction; The first side and the third side are distributed along a fourth direction, which is inclined relative to the first direction and the second direction.

16. The first electrical connector as claimed in claim 15, characterized in that: The first conductive terminal includes a first bent end that bends outward from the first contact portion, and the second conductive terminal includes a second bent end that bends outward from the second contact portion, wherein the bending directions of the first bent end and the second bent end are opposite.

17. The first electrical connector as claimed in claim 15, characterized in that: The first insulating body includes a first receiving groove located on the outer side of the first sidewall and a second receiving groove located on the outer side of the second sidewall. The outer side of the first sidewall is provided with a first keyway communicating with the first receiving groove, and the outer side of the second sidewall is provided with a second keyway communicating with the second receiving groove. The third sidewall is provided with a first protruding rib extending into the first receiving space, and the fourth sidewall is provided with a second protruding rib extending into the first receiving space.

18. The first electrical connector as claimed in claim 10, characterized in that: Both the first mounting portion of the first conductive terminal and the second mounting portion of the second conductive terminal are configured to be mounted on the first circuit board.

19. The first electrical connector as claimed in claim 18, characterized in that: Both the first mounting portion and the second mounting portion are arc-shaped and extend in a clockwise or counterclockwise direction.

20. The first electrical connector as claimed in claim 11, characterized in that: The first base is provided with a first mounting groove and a second mounting groove. The first fixing part of the first conductive terminal is fixed in the first mounting groove, and the second fixing part of the second conductive terminal is fixed in the second mounting groove.

21. The first electrical connector as claimed in claim 10, characterized in that: The first base is provided with a plurality of first terminal mounting holes, and the first terminal module is assembled and fixed in the corresponding first terminal mounting holes.

22. A connector assembly, characterized in that, It includes a first electrical connector and a second electrical connector that are mated together; the first electrical connector is the first electrical connector as described in any one of claims 10 to 21; the second electrical connector has the same structure as the first electrical connector, but a different installation angle.

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