Electric connector

Abstract

An electric connector comprises a base, a plurality of terminals and a grounding piece. The plurality of terminals are arranged in the base side by side in rows. At least a part of the plurality of terminals are a plurality of grounding terminals and a plurality of signal terminals. Each terminal is provided with a butt joint section and a welding section. The butt joint section is of a cantilever structure relative to the welding section. The grounding member includes a plurality of mounting portions. The plurality of mounting parts are respectively mounted on the welding sections of the plurality of grounding terminals. Therefore, the influence generated by shaking when the plurality of butt joint sections are in butt joint cannot directly act on the grounding piece, so that the grounding piece is stably and mechanically connected or / and electrically connected to the plurality of terminals, electromagnetic shielding is effectively generated for the plurality of signal terminals, the electromagnetic interference on the plurality of signal terminals is reduced, and the reliability of the signal terminals is improved. Therefore, the signal integrity performance of the electric connector is improved.

Description

Technical Field

[0001] The present invention relates to an electrical component, and more particularly to an electrical connector. Background Art

[0002] With the progress of technology, the requirement for the data transmission efficiency between electrical connectors is getting higher and higher. In order to ensure that the electrical connectors can perform high-efficiency data transmission without being affected by noise and improve the signal integrity (SI) performance, a ground terminal is usually provided in the electrical connector to produce an electromagnetic shielding effect on the signal terminal. However, in the existing electrical connector, the signal terminals are arranged in a row in groups, and the ground terminals are interspersed between adjacent groups of signal terminals. In this design, the greater the distance between each individual signal terminal in each group of signal terminals and the ground terminal, the worse the electromagnetic shielding effect on the signal terminal, resulting in the existing electrical connector failing to meet the requirements for SI performance during high-efficiency data transmission. Summary of the Invention

[0003] Therefore, the object of the present invention is to provide an electrical connector with improved signal integrity performance.

[0004] Thus, the electrical connector of the present invention includes a base, a plurality of terminals, and a grounding member. The plurality of terminals are arranged in a row in the base. At least a part of the plurality of terminals are a plurality of ground terminals and a plurality of signal terminals. Each terminal has a docking segment and a welding segment. Each docking segment is a cantilever structure relative to the corresponding welding segment. The grounding member includes a plurality of mounting portions. The plurality of mounting portions are respectively mounted on the welding segments of the plurality of ground terminals.

[0005] In some embodiments, each mounting portion and the corresponding welding segment are arranged in the extending direction of the docking segment.

[0006] In some embodiments, each terminal further has a fixing segment. The docking segment and the welding segment of each terminal respectively extend from both ends of the fixing segment in non-parallel directions. One end of each welding segment away from the fixing segment is welded to a circuit board. One end of each docking segment away from the fixing segment can elastically deform relative to the welding segment.

[0007] In some embodiments, the grounding member further includes a first shielding portion. The first shielding portion is located between one of two adjacent mounting portions.

[0008] In some embodiments, the grounding member further includes a second shielding portion. The second shielding portion is located between the other of two adjacent mounting portions. The width of the second shielding portion is greater than the width of the first shielding portion.

[0009] In some embodiments, the grounding member further includes a first shielding portion and a second shielding portion. The first shielding portion and the second shielding portion are disposed side by side outside one side of the plurality of terminals. The width of each second shielding portion is greater than the width of the first shielding portion.

[0010] In some embodiments, the electrical connector includes a first row of terminals and a second row of terminals. The first row of terminals and the second row of terminals each include a plurality of the terminals. The plurality of terminals of the first row of terminals are arranged side by side in the base. The plurality of terminals of the second row of terminals are arranged side by side in the base and are disposed opposite to the first row of terminals.

[0011] In some embodiments, at least a portion of the plurality of terminals of the first row of terminals are a plurality of the grounding terminals and a plurality of the signal terminals, and at least a portion of the plurality of terminals of the second row of terminals are a plurality of the grounding terminals and a plurality of the signal terminals. Each of the terminals of the first row of terminals and the second row of terminals has the docking section and the welding section.

[0012] In some embodiments, the electrical connector includes two grounding members. One of the two grounding members is a first grounding member, and the other of the two grounding members is a second grounding member. The first grounding member and the second grounding member each include a plurality of the mounting portions and a plurality of abutting portions. Each of the mounting portions has a rib portion and a pair of clamping arms that respectively extend from both sides of the rib portion in the same direction and curl inward. The plurality of pairs of clamping arms of the first grounding member are respectively directly clamped to the welding sections of the plurality of grounding terminals of the first row of terminals. And the plurality of abutting portions of the first grounding member respectively extend outward from one end of the plurality of rib portions of the first grounding member and respectively press against the corresponding grounding terminals of the first row of terminals. The plurality of pairs of clamping arms of the second grounding member are respectively directly clamped to the welding sections of the plurality of grounding terminals of the second row of terminals. And the plurality of abutting portions of the second grounding member respectively extend outward from one end of the plurality of rib portions of the second grounding member and respectively press against the corresponding grounding terminals of the second row of terminals.

[0013] In some embodiments, the extending direction of each docking section is perpendicular to the extending direction of the corresponding welding section.

[0014] In some embodiments, the extending direction of each docking section of the first row of terminals is perpendicular to the extending direction of the corresponding welding section. The extending direction of each docking section of the second row of terminals is perpendicular to the extending direction of the corresponding welding section.

[0015] In some embodiments, the electrical connector further includes a terminal module. The terminal module includes a terminal holder disposed in the base, and a plurality of terminals arranged side by side in rows and disposed in the terminal holder. Each terminal has a docking section, a welding section, and a fixing section fixed to the terminal holder. Each docking section and the corresponding welding section respectively extend out of the terminal holder from both ends of the corresponding fixing section.

[0016] In some embodiments, the electrical connector further includes a first terminal module and a second terminal module. The first terminal module includes a first terminal holder disposed in the base, and a first row of terminals disposed in the first terminal holder. Each terminal of the first row of terminals has a docking section, a welding section, and a fixing section fixed to the first terminal holder. Each docking section and the corresponding welding section of the first row of terminals respectively extend out of the first terminal holder from both ends of the corresponding fixing section. The second terminal module includes a second terminal holder disposed in the base, and a second row of terminals disposed in the second terminal holder. Each terminal of the second row of terminals has a docking section, a welding section, and a fixing section fixed to the second terminal holder. Each docking section and the corresponding welding section of the second row of terminals respectively extend out of the second terminal holder from both ends of the corresponding fixing section.

[0017] In some embodiments, the grounding member further includes a plurality of abutting portions. Each mounting portion has a rib portion and a pair of clamping arms that respectively extend in the same direction from both sides of the rib portion and are curled inward. A plurality of pairs of clamping arms are respectively directly clamped to the welding sections of a plurality of the grounding terminals. A plurality of the abutting portions respectively extend outward from one end of a plurality of the rib portions and respectively press against the corresponding grounding terminals.

[0018] In some embodiments, the welding section of each grounding terminal has a recess corresponding to a corresponding pair of the clamping arms.

[0019] In some embodiments, the welding section of each grounding terminal of the first row of terminals has a first recess corresponding to a corresponding pair of the clamping arms of the first grounding member. The welding section of each grounding terminal of the second row of terminals has a second recess corresponding to a corresponding pair of the clamping arms of the second grounding member.

[0020] In some embodiments, the electrical connector further includes a metal housing. The metal housing covers the outside of the base.

[0021] In some embodiments, each first shielding portion shields two of the signal terminals.

[0022] In some embodiments, each first shielding portion shields two of the signal terminals. Each second shielding portion shields at least three of the signal terminals.

[0023] In some embodiments, each of the first shielding portions shields two of the signal terminals. Each of the second shielding portions shields five of the signal terminals.

[0024] In some embodiments, each of the mounting portions has a rib portion. Each rib portion is directly welded to the welding section of the corresponding grounding terminal.

[0025] In some embodiments, two ends of each rib portion are respectively directly welded to two positions on the welding section of the corresponding grounding terminal along the extending direction thereof.

[0026] The efficacy of the present invention lies in that: by mounting a plurality of the mounting portions on the welding sections of a plurality of the grounding terminals, the influence generated by the shaking during the docking of a plurality of the docking sections cannot directly act on the grounding member, thereby enabling the grounding member to be stably mechanically connected and / or electrically connected to a plurality of the terminals, and effectively generating electromagnetic shielding for a plurality of the signal terminals to reduce the electromagnetic interference received by the plurality of signal terminals, thereby improving the signal integrity performance of the electrical connector. In addition, by directly clamping a pair of the clamping arms of a plurality of the mounting portions on the welding sections of a plurality of the grounding terminals, or by directly welding the rib portions of a plurality of the mounting portions to the welding sections of a plurality of the grounding terminals, the grounding member can be further stably mounted on a plurality of the grounding terminals and is not easily loosened, and the contact area between the grounding member and a plurality of the grounding terminals can also be increased, which can also improve the signal integrity performance of the electrical connector. In addition, when a pair of the clamping arms of a plurality of the mounting portions directly clamp the welding sections of a plurality of the grounding terminals, the abutting portion also presses against a plurality of the grounding terminals, which can also increase the contact area between the grounding member and a plurality of the grounding terminals, thereby improving the signal integrity performance of the electrical connector. On the other hand, by shielding at least two of the signal terminals through the first shielding portion or the second shielding portion, the crosstalk between the signal terminals can be reduced, which can also improve the signal integrity performance of the electrical connector. Description of the Drawings

[0027] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein:

[0028] Figure 1 is a perspective view showing the connection relationship between a first embodiment of the electrical connector of the present invention and a circuit board;

[0029] Figure 2 is a perspective view showing the implementation details of the first embodiment and removing a metal housing of the first embodiment;

[0030] Figure 3 is a perspective view showing the implementation details of the first embodiment and removing the metal housing and a base of the first embodiment;

[0031] Figure 4 is a three-dimensional view from a different perspective; Figure 3 is a sectional view along line V-V in

[0032] Figure 5 is a front view showing the implementation details of a first terminal module of the first embodiment; Figure 2 in;

[0033] Figure 6 is a rear view showing the implementation details of the first terminal module;

[0034] Figure 7 is an incomplete front view showing the implementation details of the first terminal module;

[0035] Figure 8 is an incomplete three-dimensional view from a similar

[0036] Figure 9 is a perspective showing the implementation details of a first grounding member of the first terminal module; Figure 3 perspective;

[0037] Figure 10 is a front view showing the implementation details of a second terminal module of the first embodiment;

[0038] Figure 11 is a rear view showing the implementation details of the second terminal module;

[0039] Figure 12 is a three-dimensional view showing the connection relationship between a second embodiment of the electrical connector of the present invention and a circuit board;

[0040] Figure 13 is a three-dimensional view of another perspective of the second embodiment, removing a metal housing of the second embodiment;

[0041] Figure 14 is a three-dimensional view of the second embodiment, removing the metal housing and a base of the second embodiment;

[0042] Figure 15 is a partial exploded view corresponding to Figure 14 ;

[0043] Figure 16 is a partial exploded view from a different perspective from Figure 15 ;

[0044] Figure 17 is a sectional view along line XVII-XVII in Figure 13 ;

[0045] Figure 18is a perspective view of a second terminal module of the second embodiment, with a second terminal holder of the second terminal module removed;

[0046] Figure 19 is a front view of the second terminal module, with the second terminal holder removed;

[0047] Figure 20 is a rear view of the second terminal module, with the second terminal holder removed;

[0048] Figure 21 is Figure 18 an enlarged view of the circled area A; and

[0049] Figure 22 is a cross-sectional view taken along the line XXII-XXII in Figure 19 .

[0050] Reference numerals are as follows:

[0051] 100, 100': electrical connectors

[0052] 1: base

[0053] 11: slot

[0054] 2, 2': terminal modules

[0055] 2a, 2a': first terminal modules

[0056] 2b, 2b': second terminal modules

[0057] 21: terminal holder

[0058] 21a: first terminal holder

[0059] 21b: second terminal holder

[0060] 22a, 22a': first row of terminals

[0061] 22b, 22b': second row of terminals

[0062] 221, 221': ground terminals

[0063] 222, 222', 222”, 222”': signal terminals

[0064] 223: docking section

[0065] 224, 224': welding sections

[0066] 225: fixing section

[0067] 226: recess

[0068] 226a: first recess

[0069] 226b: Second recess

[0070] 23, 23': Grounding member

[0071] 23a: First grounding member

[0072] 23b: Second grounding member

[0073] 231: Crossbeam portion

[0074] 232, 232': Mounting portion

[0075] 233: Contact portion

[0076] 234, 234': First shielding portion

[0077] 235, 235': Second shielding portion

[0078] 236, 236': Rib portion

[0079] 237: Clamping arm

[0080] 3: Metal housing

[0081] 200: Circuit board

[0082] X: Front - rear direction

[0083] Y: Left - right direction

[0084] Z: Up - down direction Detailed implementation manners

[0085] Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

[0086] Refer to Figures 1 to 11 , which is a first embodiment of the electrical connector 100 of the present invention. As Figure 1 shown, the electrical connector 100 is adapted to be mounted on a circuit board 200 and is for electrical connection to a plug connector (not shown in the figure). The circuit board 200 is provided with a conductive circuit pattern (not shown in the figure). The electrical connector 100 includes a base 1, two terminal modules 2, and a metal housing 3.

[0087] Refer to Figure 1 , for the convenience of subsequent description, a front - rear direction X, a left - right direction Y not parallel to the front - rear direction X, and an up - down direction Z not parallel to the front - rear direction X and the left - right direction Y of the electrical connector 100 are defined. In this first embodiment, the front - rear direction X, the left - right direction Y, and the up - down direction Z are perpendicular to each other. The front - rear direction X is the direction from front to back as indicated by the arrow in Figure 1 , and the left - right direction Y is asFigure 1 The direction from left to right indicated by the arrow in the figure, and the up-down direction Z is as Figure 1 the direction from bottom to top indicated by the arrow in the figure.

[0088] Refer to Figures 1 to 4 , the base 1 can be an insulating base similar to a cuboid but not limited thereto, and is suitable for being installed on a board surface of the circuit board 200. The metal shell 3 covers the outside of the base 1 to shield electromagnetic interference generated by the external environment on the two terminal modules 2. In this first embodiment, the base 1 is installed above the circuit board 200. And a slot 11 is formed by recessing backward on the front side surface of the base 1 in the front-back direction X. The slot 11 is suitable for the plug connector to be detachably inserted from front to back in the front-back direction X, so that the plug connector can be electrically connected to the two terminal modules 2.

[0089] Refer to Figures 3 to 6 , the two terminal modules 2 are arranged in the base 1 (see Figure 5 ). And each terminal module 2 includes a terminal holder 21 arranged in the base 1 and extending along the left-right direction Y, a plurality of terminals arranged in rows along the left-right direction Y on the terminal holder 21, and a grounding member 23 extending along the left-right direction Y and installed on at least a part of the plurality of terminals. The two terminal holders 21 are arranged in parallel behind the slot 11. In this first embodiment, the materials of the plurality of terminals are, for example, metals capable of conducting electricity, and at least a part of them are a plurality of grounding terminals 221 and a plurality of signal terminals 222 (see Figure 6 ). The plurality of signal terminals 222 can be electrically connected to the plug connector to transmit signals. And, the plurality of signal terminals 222 can be arranged in groups of at least two along the left-right direction Y, and the plurality of grounding terminals 221 are respectively located between two adjacent groups of the signal terminals 222 to shield signal interference between the two adjacent groups of the signal terminals 222 where each grounding terminal 221 is located.

[0090] Refer to Figure 1 , Figures 5 to 8 , each terminal has a docking segment 223, a welding segment 224, and a fixing segment 225 with two opposite ends respectively connected to the docking segment 223 and the welding segment 224 (see Figure 5 ). In other words, each grounding terminal 221 has the docking segment 223, the welding segment 224, and the fixing segment 225 (see Figure 8)。Each of the signal terminals 222 also has the docking section 223, the welding section 224, and the fixing section 225. Each of the fixing sections 225 of each terminal module 2 is fixed within the corresponding terminal holder 21. Each of the docking sections 223 of each terminal module 2 and the corresponding welding section 224 extend outward from both ends of the corresponding fixing section 225 in directions not parallel to each other and protrude from the corresponding terminal holder 21. Each of the docking sections 223 of each terminal module 2 is adapted to be electrically connected to the plug connector. Each of the welding sections 224 of each terminal module 2 is adapted to be welded to the circuit board 200 and is electrically connected to the circuit pattern on the circuit board 200.

[0091] Specifically, the front sides of the two terminal holders 21 are arranged one above the other. Each of the docking sections 223 of each terminal module 2 extends forward from the corresponding fixing section 225 and protrudes from the front side of the corresponding terminal holder 21, such that a plurality of the docking sections 223 of the two terminal modules 2 are arranged opposite to each other vertically and spaced apart from each other in the slot 11. During the process of inserting the plug connector into the slot 11, each of the docking sections 223 will be elastically deformed by the pushing of the plug connector and apply an elastic restoring force to press against the plug connector. And, after the plug connector is withdrawn from the slot 11, each of the docking sections 223 will be driven by the elastic restoring force to return to the position before deformation. In other words, each of the docking sections 223 is a cantilever structure relative to the corresponding welding section 224. The bottom sides of the two terminal holders 21 are arranged one in front of the other. In addition, one end of each of the welding sections 224 away from the fixing section 225 is welded to the circuit board 200. Each of the welding sections 224 of each terminal module 2 extends downward from the corresponding fixing section 225 and protrudes from the bottom side of the corresponding terminal holder 21, such that a plurality of the welding sections 224 of the two terminal modules 2 are arranged opposite to each other horizontally and spaced apart from each other below the outside of the slot 11. In this first embodiment, the extending directions of each of the docking sections 223 and the corresponding welding section 224 are not parallel to each other, enabling the welding section 224 to provide a forward supporting force to the docking section 223 when the docking section 223 is pushed backward by the plug connector, restricting the backward sway of each terminal. Preferably, the extending direction of each of the docking sections 223 is perpendicular to the extending direction of the corresponding welding section 224, that is, the outer shape of each terminal is in an L shape, but this is not a limitation.

[0092] Refer to Figure 4 、 Figure 6 、 Figure 7 And Figure 9, the materials of the two grounding members 23 can be metal, and the two grounding members 23 are located between the opposite sides of the welding sections 224 of the two terminal modules 2 to shield the signal interference between the terminals of the two terminal modules 2. Each grounding member 23 includes a plurality of cross beam portions 231, a plurality of mounting portions 232, a plurality of abutting portions 233, a plurality of first shielding portions 234, and a plurality of second shielding portions 235. The plurality of mounting portions 232 of each grounding member 23 are arranged at intervals in the left-right direction Y and are respectively aligned with the plurality of grounding terminals 221 of the corresponding terminal module 2. Specifically, the plurality of mounting portions 232 and the corresponding welding sections 224 are arranged in the extending direction of the docking section 223 (i.e., the front-back direction X). In this way, when the docking section 223 is pushed backward by the plug connector, the mounting portion 232 is restricted by the welding section 224 and is stably mounted on the welding section 224, and is not easily loosened or shaken.

[0093] Preferably, each welding section 224 has a recess 226 that is recessed inwardly on both the left and right sides. Each mounting portion 232 of each grounding member 23 has a rib 236 extending in the up-down direction Z, and a pair of clamping arms 237 that extend from both sides of the rib 236 in the same direction (i.e., the direction close to the corresponding grounding terminal 221) and are curled inward. The plurality of pairs of clamping arms 237 of each terminal module 2 are respectively directly clamped to the welding sections 224 of the plurality of grounding terminals 221. Specifically, the positions of the plurality of pairs of clamping arms 237 of each terminal module 2 respectively correspond to the recesses 226 of the plurality of grounding terminals 221 of the corresponding terminal module 2, so that the plurality of pairs of clamping arms 237 of each terminal module 2 can be respectively directly clamped to the left and right sides of the corresponding plurality of recesses 226. In this way, each pair of clamping arms 237 is restricted by the upper and lower side walls of the corresponding recess 226 and cannot move up and down, thereby enabling the corresponding grounding member 23 to be stably mounted on the plurality of grounding terminals 221, achieving the effect of not being easily loosened. In addition, when each pair of clamping arms 237 is directly clamped to the corresponding recess 226, each pair of clamping arms 237 is electrically connected to the corresponding recess 226, which can increase the electrical contact area between the grounding member 23 and the plurality of grounding terminals 221, thereby improving the signal integrity performance of the electrical connector 100. The plurality of cross beam portions 231 of each grounding member 23 are arranged at intervals in the up-down direction in pairs between two adjacent mounting portions 232, and the left and right ends of each cross beam portion 231 are respectively connected to two adjacent mounting portions 232. In this first embodiment, the number of the plurality of mounting portions 232 is equal to the number of the plurality of grounding terminals 221, but the number of the plurality of mounting portions 232 can also be less than the number of the plurality of grounding terminals 221, and there is no specific limit on the number.

[0094] The multiple abutting portions 233 of each of the grounding members 23 extend outward (i.e., in a direction away from the corresponding clamping arm 237) from one end of the multiple rib portions 236 of the corresponding grounding member 23. And the multiple abutting portions 233 of each of the terminal modules 2 respectively abut against the corresponding grounding terminals 221 and do not contact the recess 226. In this way, when the grounding member 23 of each of the terminal modules 2 is stably mounted on the multiple grounding terminals 221 of the corresponding terminal module 2, the corresponding grounding member 23 can also be electrically connected to the multiple grounding terminals 221 through the multiple abutting portions 233, thereby similarly increasing the electrical contact area between the corresponding grounding member 23 and the multiple grounding terminals 221 to improve the signal integrity performance of the electrical connector 100. In this first embodiment, each of the abutting portions 233 of each of the terminal modules 2 extends upward from the top end of the corresponding rib portion 236 in the up-down direction Z to abut against the upper half of the welding section 224 of the corresponding grounding terminal 221. However, in some other embodiments, each of the abutting portions 233 of each of the terminal modules 2 may also extend downward from the bottom end of the corresponding rib portion 236 to abut against the lower half of the welding section 224 of the corresponding grounding terminal 221, depending on actual requirements.

[0095] The multiple first shielding portions 234 and the multiple second shielding portions 235 of each of the grounding members 23 are arranged side by side in a row in the left-right direction Y on one side outside the multiple terminals. Specifically, the multiple first shielding portions 234 and the multiple second shielding portions 235 are respectively located between two adjacent mounting portions 232. The multiple first shielding portions 234 and the multiple second shielding portions 235 of each of the grounding members 23 are respectively located outside one side of the at least two signal terminals 222 in a group adjacent to the multiple signal terminals 222 of the other terminal module 2. In this way, the multiple signal terminals 222 that are far from the multiple grounding terminals 221 in the left-right direction Y and are not shielded by the multiple grounding terminals 221 can still produce an electromagnetic shielding effect through the multiple first shielding portions 234 or the multiple second shielding portions 235. In this first embodiment, each of the first shielding portions 234 extends in the up-down direction Z, and its upper and lower sides are respectively connected to the two cross beam portions 231 and shield the two signal terminals 222 of the corresponding terminal module 2; the upper and lower sides of each of the second shielding portions 235 are also respectively connected to the two cross beam portions 231, and the width of each of the second shielding portions 235 in the left-right direction Y is greater than the width of each of the first shielding portions 234 in the left-right direction Y, so that each of the second shielding portions 235 shields at least three signal terminals 222, that is, as Figure 7As shown, each of the second shielding portions 235 shields five of the signal terminals 222. It is worth mentioning that the shape of each of the signal terminals 222 can be similar to the shape of the grounding terminal 221 having the recess 226. Here, the signal terminal 222' is taken as an example. Each of the signal terminals 222 can also be in a shape with straight left and right side edges. For example, each of the second shielding portions 235 shields four of the signal terminals 222 and one signal terminal 222' with a different shape. However, the shape of each of the signal terminals 222 is not limited to a specific shape. However, in some other embodiments, the number of the first shielding portions 234 and the number of the second shielding portions 235 of each of the grounding members 23 can also be only one each, and the first shielding portion 234 is located between one of two adjacent mounting portions 232; the second shielding portion 235 is located between the other of two adjacent mounting portions 232, depending on actual requirements.

[0096] Refer to Figures 6 to 11 , for the convenience of subsequent description, the two terminal modules 2 are exemplified by a first terminal module 2a and a second terminal module 2b. The terminal holders 21 of the two terminal modules 2 are exemplified by a first terminal holder 21a and a second terminal holder 21b. The terminals of the two terminal modules 2 are arranged in two rows and are exemplified by a first row of terminals 22a and a second row of terminals 22b. The grounding members 23 of the two terminal modules 2 are exemplified by a first grounding member 23a and a second grounding member 23b. The recesses 226 of the two terminal modules 2 are exemplified by a first recess 226a and a second recess 226b.

[0097] In other words, the electrical connector 100 includes the first terminal module 2a and the second terminal module 2b. The first terminal module 2a includes the first terminal holder 21a disposed in the base 1, the first row of terminals 22a disposed in the first terminal holder 21a, and the first grounding member 23a. The first row of terminals 22a has a plurality of the terminals (i.e., a plurality of the grounding terminals 221 and a plurality of the signal terminals 222). Each of the grounding terminals 221 of the first row of terminals 22a has the docking section 223, the welding section 224, and the fixing section 225 fixed to the first terminal holder 21a. That is, each of the docking sections 223 and the corresponding welding sections 224 of the first row of terminals 22a extend out of the first terminal holder 21a from both ends of the corresponding fixing section 225. And the welding sections 224 of each of the grounding terminals 221 of the first terminal module 2a have the first recesses 226a respectively corresponding to multiple pairs of the clamping arms 237 of the first grounding member 23a. Each of the signal terminals 222 of the first row of terminals 22a also has the docking section 223, the welding section 224, and the fixing section 225 fixed to the first terminal holder 21a.

[0098] The second terminal module 2b includes a second terminal holder 21b disposed in the base 1, a second row of terminals 22b disposed in the second terminal holder 21b, and a second grounding member 23b. The second row of terminals 22b has a plurality of the terminals (i.e., a plurality of the grounding terminals 221 and a plurality of the signal terminals 222). Each grounding terminal 221 of the second row of terminals 22b has a docking section 223, a welding section 224, and a fixing section 225 fixed to the second terminal holder 21b. That is, the docking section 223 and the corresponding welding section 224 of each of the second row of terminals 22b extend out of the second terminal holder 21b from both ends of the corresponding fixing section 225. And the welding section 224 of each grounding terminal 221 of the second terminal module 2b has a second recess 226b whose position corresponds to a plurality of pairs of the clamping arms 237 of the second grounding member 23b. Each signal terminal 222 of the second row of terminals 22b has a docking section 223, a welding section 224, and a fixing section 225 fixed to the second terminal holder 21b.

[0099] Referring to Figures 3 to 11 , specifically, the second terminal holder 21b is located below the front half of the first terminal holder 21a and in front of the rear half of the first terminal holder 21a. However, the arrangement of the first terminal holder 21a and the second terminal holder 21b is not limited to the foregoing description. The plurality of docking sections 223 of the first row of terminals 22a are Figure 5 a part of the plurality of the terminals located in the lower row in Figure 5 , and the plurality of welding sections 224 of the first row of terminals 22a are Figure 5 another part of the plurality of the terminals located in the front ( Figure 5 left side of Figure 5 ) row in Figure 5 . And the plurality of docking sections 223 of the second row of terminals 22b are

[0100] a part of the plurality of the terminals located in the upper row in Figure 5 , and the plurality of welding sections 224 of the second row of terminals 22b are Figure 5 another part of the plurality of the terminals located in the rear ( Figure 5 right side of ) row in Figure 5 . The extending direction of each docking section 223 of the first row of terminals 22a is perpendicular to the extending direction of the corresponding welding section 224. The extending direction of each docking section 223 of the second row of terminals 22b is perpendicular to the extending direction of the corresponding welding section 224.

[0100] Similarly, the first grounding member 23a has a plurality of the cross beam portions 231, a plurality of the mounting portions 232, a plurality of the abutting portions 233, a plurality of the first shielding portions 234, and a plurality of the second shielding portions 235. The second grounding member 23b also has a plurality of the cross beam portions 231, a plurality of the mounting portions 232, a plurality of the abutting portions 233, a plurality of the first shielding portions 234, and a plurality of the second shielding portions 235. Each of the mounting portions 232 of the first grounding member 23a has the rib portion 236 and a pair of the clamping arms 237. A plurality of pairs of the clamping arms 237 of the first grounding member 23a are respectively directly clamped to the first recesses 226a of the plurality of grounding terminals 221 of the first row of terminals 22a. And a plurality of the abutting portions 233 of the first grounding member 23a are respectively pressed against the portions of the corresponding grounding terminals 221 of the first row of terminals 22a that are away from the first recesses 226a. Each of the mounting portions 232 of the second grounding member 23b has the rib portion 236 and a pair of the clamping arms 237. A plurality of pairs of the clamping arms 237 of the second grounding member 23b are respectively directly clamped to the second recesses 226b of the plurality of grounding terminals 221 of the second row of terminals 22b. And a plurality of the abutting portions 233 of the second grounding member 23b are respectively pressed against the portions of the corresponding grounding terminals 221 of the second row of terminals 22b that are away from the second recesses 226b.

[0101] Refer to Figures 12 to 22 , which is a second embodiment of the electrical connector 100' of the present invention. The electrical connector 100' is similar to the foregoing first embodiment and includes a base 1 adapted to be mounted on a circuit board 200, two terminal modules 2' disposed on the base 1, and a metal housing 3 covering the outside of the base 1 to shield electromagnetic interference generated by the outside environment on the two terminal modules 2'.

[0102] Refer to Figures 12 to 17, one of the differences between this electrical connector 100' and the aforementioned first embodiment is that only one of the two terminal modules 2' of the electrical connector 100' is provided with a grounding member 23'. Of course, the electrical connector 100' can also be provided with the grounding member 23' in each of the two terminal modules 2' as in the first embodiment, and it is not limited to having one grounding member 23'. For the convenience of description here, the two terminal modules 2' are also exemplified by a first terminal module 2a' and a second terminal module 2b'. Specifically, the first terminal module 2a' includes a first terminal holder 21a disposed in the base 1 and a first row of terminals 22a' disposed in the first terminal holder 21a. The first row of terminals 22a' has a plurality of terminals (i.e., a plurality of grounding terminals 221' and a plurality of signal terminals 222"). The second terminal module 2b' includes a second terminal holder 21b disposed in the base 1, a second row of terminals 22b' disposed in the second terminal holder 21b, and the grounding member 23'. The second row of terminals 22b' has a plurality of the terminals (i.e., a plurality of the grounding terminals 221' and a plurality of the signal terminals 222"). Each of the grounding terminals 221' has a fixed section 225, and a pair of docking sections 223 and a welding section 224' extending from both ends of the fixed section 225 in non-parallel directions. The grounding member 23' has a plurality of mounting portions 232' spaced apart along the left-right direction Y and respectively mounted on the plurality of grounding terminals 221' of the first terminal module 2a'. In this second embodiment, the grounding member 23' is located between the second row of terminals 22b' and the first row of terminals 22a', so as to generate an electromagnetic shielding effect on the plurality of signal terminals 222" of the second row of terminals 22b', and can also shield the signal interference between the terminals of the two terminal modules 2'.

[0103] Refer to Figures 17 to 19 , another difference between this electrical connector 100' and the aforementioned first embodiment is that the plurality of mounting portions 232' of the grounding member 23' are respectively mounted on the welding sections 224' of the plurality of grounding terminals 221' by welding (for example: laser welding). Specifically, each of the mounting portions 232' has a strip-shaped rib portion 236'. Each of the rib portions 236' is directly welded to the welding section 224' of the corresponding grounding terminal 221'. Preferably, the upper and lower ends of each of the rib portions 236' are directly welded to the upper and lower two positions in the extending direction (i.e., the up-down direction Z) of the welding section 224' of the corresponding grounding terminal 221', so that the grounding member 23' is stably mounted on the plurality of grounding terminals 221'. In this way, even if the plurality of grounding terminals 221' shake during the plugging and unplugging process of the plug connector, the grounding member 23' is still stably connected to the plurality of grounding terminals 221' and will not become loose.

[0104] Refer to Figures 17 to 22, Another difference between this electrical connector 100' and the aforementioned first embodiment lies in the structural form of the grounding member 23'. Specifically, the grounding member 23' includes a plurality of the mounting portions 232', a plurality of first shielding portions 234', and a plurality of second shielding portions 235'. The width of each of the second shielding portions 235' is greater than the width of each of the first shielding portions 234'. A plurality of the first shielding portions 234' are respectively located between some of two adjacent mounting portions 232', and respectively align with multiple groups of the signal terminals in groups of two, and the left and right sides of each of the first shielding portions 234' are respectively connected to the middle of two adjacent mounting portions 232'; a plurality of the second shielding portions 235' are respectively located between the remaining ones of two adjacent mounting portions 232', and respectively align with multiple groups of the signal terminals in groups of at least three. Here, each group of the signal terminals is exemplified by five signal terminals 222”. And the shape of one of the five signal terminals 222” in each group of the signal terminals (exemplified by the signal terminal 222”') can be similar to the shape of the grounding terminal 221'. Also, the left and right sides of each of the second shielding portions 235' are respectively connected to the middle of two adjacent mounting portions 232'. The plurality of the first shielding portions 234' and the plurality of the second shielding portions 235' are spaced apart in the front-back direction X (see Figure 22 ), and can also generate an electromagnetic shielding effect on the plurality of signal terminals 222”, 222”', thereby improving the signal integrity performance of the electrical connector 100'. In this second embodiment, each of the first shielding portions 234' and each of the second shielding portions 235' are presented as plate-shaped extending along the left-right direction Y and the up-down direction Z, and the shapes of the plurality of the first shielding portions 234' can be different, and all are used to shield the signal terminals 222” in groups of two.

[0105] In summary, by installing the welding sections 224, 224' of multiple such mounting portions 232, 232' on multiple such grounding terminals 221, 221', the influence caused by the shaking during the docking of multiple such docking sections 223 cannot directly act on the grounding members 23, 23', thereby enabling the grounding members 23, 23' to be firmly mechanically connected and / or electrically connected to multiple such terminals, and effectively generating electromagnetic shielding for multiple such signal terminals 222, 222', 222", 222"', so as to reduce the electromagnetic interference received by multiple such signal terminals 222, 222', 222", 222"', and further improve the signal integrity performance of the electrical connectors 100, 100'. In addition, by directly clamping the pair of clamping arms 237 of multiple such mounting portions 232 on the welding section 224 of multiple such grounding terminals 221, or by directly welding the rib portions 236' of multiple such mounting portions 232' to the welding section 224' of multiple such grounding terminals 221', the grounding members 23, 23' can be further firmly installed on multiple such grounding terminals 221, 221' and are not easily loosened, and the contact area between the grounding members 23, 23' and multiple such grounding terminals 221, 221' can also be increased, which can also improve the signal integrity performance of the electrical connectors 100, 100'. In addition, when the pair of clamping arms 237 of multiple such mounting portions 232 directly clamp the welding section 224 of multiple such grounding terminals 221, the abutting portion 233 also presses against multiple such grounding terminals 221, and the contact area between the grounding member 23 and multiple such grounding terminals 221 can also be increased, thereby improving the signal integrity performance of the electrical connector 100. On the other hand, by shielding at least two such signal terminals 222, 222" with the first shielding portions 234, 234' or the second shielding portions 235, 235', the crosstalk between the signal terminals can be reduced, and the signal integrity performance of the electrical connectors 100, 100' can also be improved. Therefore, the object of the present invention can indeed be achieved.

[0106] However, the above are only embodiments of the present invention, and the scope of implementation of the present invention cannot be limited thereby. All simple equivalent changes and modifications made according to the claims and the content of the specification of the present invention still fall within the scope covered by the patent of the present invention.

Claims

1. An electrical connector, comprising: a base; A plurality of terminals are arranged in a row in the base, at least a portion of the plurality of terminals are a plurality of ground terminals and a plurality of signal terminals, each of the terminals has a docking section and a welding section, and each of the docking sections is a cantilever structure relative to the corresponding welding section; and A grounding member comprises a plurality of mounting portions, wherein the plurality of mounting portions are respectively mounted on the welding sections of the plurality of grounding terminals.

2. The electrical connector according to claim 1, wherein: Each of the mounting portions and the corresponding welding section are arranged in an extending direction of the butt joint section.

3. The electrical connector according to claim 1, wherein: Each terminal also has a fixed section, and the docking section and the welding section of each terminal extend from the two ends of the fixed section in non-parallel directions respectively. One end of each welding section away from the fixed section is welded on a circuit board, and one end of each docking section away from the fixed section can be elastically deformed relative to the welding section.

4. The electrical connector according to claim 1, wherein: The grounding member further includes a first shielding portion, and the first shielding portion is located between two adjacent mounting portions.

5. The electrical connector according to claim 4, wherein: The grounding member further includes a second shielding portion, the second shielding portion is located between the other of the two adjacent mounting portions, and the width of the second shielding portion is greater than the width of the first shielding portion.

6. The electrical connector according to claim 1, wherein: The grounding component also includes a first shielding portion and a second shielding portion. The first shielding portion and the second shielding portion are arranged in parallel outside one side of the plurality of terminals. The width of the second shielding portion is greater than that of the first shielding portion.

7. The electrical connector as described in claim 1 comprises a first row of terminals and a second row of terminals, the first row of terminals and the second row of terminals each including a plurality of the terminals, the plurality of the terminals of the first row of terminals are arranged in a row in parallel in the base, and the plurality of the terminals of the second row of terminals are arranged in a row in parallel in the base and are arranged opposite to the first row of terminals.

8. The electrical connector according to claim 7, wherein: At least a portion of the plurality of terminals in the first row of terminals are the plurality of ground terminals and the plurality of signal terminals, at least a portion of the plurality of terminals in the second row of terminals are the plurality of ground terminals and the plurality of signal terminals, and each of the terminals in the first row of terminals and the second row of terminals has the docking section and the welding section.

9. The electrical connector as described in claim 8 comprises two grounding members, one of the two grounding members is a first grounding member, and the other of the two grounding members is a second grounding member, the first grounding member and the second grounding member each include a plurality of mounting portions and a plurality of abutting portions, each mounting portion has a rib and a pair of clamping arms extending inwardly from both sides of the rib in the same direction, the plurality of pairs of clamping arms of the first grounding member are respectively directly clamped to the welding sections of the plurality of grounding terminals of the first row of terminals, and the plurality of abutting portions of the first grounding member are respectively extended outwardly from one end of the plurality of ribs of the first grounding member, and are respectively pressed against the corresponding grounding terminals of the first row of terminals, the plurality of pairs of clamping arms of the second grounding member are respectively directly clamped to the welding sections of the plurality of grounding terminals of the second row of terminals, and the plurality of abutting portions of the second grounding member are respectively extended outwardly from one end of the plurality of ribs of the second grounding member, and are respectively pressed against the corresponding grounding terminals of the second row of terminals.

10. The electrical connector according to claim 1, wherein: The extending direction of each butting section is perpendicular to the extending direction of the corresponding welding section.

11. The electrical connector according to claim 8, wherein: The extending direction of each docking section of the first row of terminals is perpendicular to the extending direction of the corresponding welding section, and the extending direction of each docking section of the second row of terminals is perpendicular to the extending direction of the corresponding welding section.

12. The electrical connector as described in claim 1 further includes a terminal module, which includes a terminal retaining seat arranged in the base, and a plurality of terminals arranged in parallel in a row on the terminal retaining seat, each of the terminals has the docking section, the welding section and a fixed section fixed to the terminal retaining seat, and each of the docking sections and the corresponding welding section respectively extend outward from the two ends of the corresponding fixed section of the terminal retaining seat.

13. The electrical connector as described in claim 8 further includes a first terminal module and a second terminal module, the first terminal module includes a first terminal retaining seat arranged in the base, and the first row of terminals arranged in the first terminal retaining seat, each of the terminals in the first row of terminals has the docking section, the welding section and a fixed section fixed to the first terminal retaining seat, and each of the docking sections and the corresponding welding sections of the first row of terminals extend outward from the two ends of the corresponding fixed section to the first terminal retaining seat; the second terminal module includes a second terminal retaining seat arranged in the base, and the second row of terminals arranged in the second terminal retaining seat, each of the terminals in the second row of terminals has the docking section, the welding section and a fixed section fixed to the second terminal retaining seat, and each of the docking sections and the corresponding welding sections of the second row of terminals extend outward from the two ends of the corresponding fixed section to the second terminal retaining seat.

14. The electrical connector according to claim 1, wherein: The grounding member also includes a plurality of abutment portions, each of the mounting portions having a rib and a pair of clamping arms extending inwardly from both sides of the rib in the same direction, and the plurality of clamping arms are directly clamped to the welding sections of the plurality of grounding terminals, respectively. The plurality of abutment portions extend outwardly from one end of the plurality of ribs, respectively, and are pressed against the corresponding grounding terminals.

15. The electrical connector according to claim 14, wherein: The welding section of each ground terminal has a recessed portion corresponding to a corresponding pair of clamping arms.

16. The electrical connector according to claim 9, wherein: The welding section of each grounding terminal of the first row of terminals has a first recess corresponding to a pair of clamp arms of the first grounding member, and the welding section of each grounding terminal of the second row of terminals has a second recess corresponding to a pair of clamp arms of the second grounding member.

17. The electrical connector as claimed in claim 1, further comprising a metal shell, wherein the metal shell covers the outside of the base.

18. The electrical connector according to claim 4, wherein: The first shielding portion shields the two signal terminals.

19. The electrical connector according to claim 5, wherein: The first shielding portion shields two of the signal terminals, and the second shielding portion shields at least three of the signal terminals.

20. The electrical connector according to claim 5, wherein: The first shielding portion shields two of the signal terminals, and the second shielding portion shields five of the signal terminals.

21. The electrical connector according to claim 1, wherein: Each of the mounting portions has a rib portion, and each of the rib portions is directly welded to the welding section of the corresponding ground terminal.

22. The electrical connector according to claim 21, wherein: Two ends of each rib are directly welded to two positions of the welding section of the corresponding ground terminal in the extending direction thereof.

Images