Electric connector

Abstract

The utility model discloses an electric connector, comprising an insulation body provided with two terminal grooves arranged adjacently left and right; the two grounding terminals are accommodated in the terminal grooves, each grounding terminal is provided with a holding part, the holding part comprises a clamping part and a matching part, and the matching part and the clamping part are located on the left side and the right side of the holding part respectively; the loss part is provided with two surfaces exposed out of the two terminal grooves respectively, the loss part is contained in the insulation body, the loss part is located between the two adjacent grounding terminals in the left-right direction, the two matching parts are located between the two clamping parts, and the two matching parts are closer to the loss part compared with the two clamping parts; the clamping part is clamped on the wall surface in the terminal groove, the matching part is clamped on the surface, a center line is defined by the width of the holding part in the left-right direction, and the outer end surfaces of the clamping part and the matching part in the left-right direction are defined as free end surfaces; the distance between the free end face of the matching part and the center line is larger than that between the free end face of the clamping part and the center line.

Description

[Technical field]

[0001] The utility model relates to an electric connector, in particular to an electric connector which optimizes SI performance and is stable and reliable. [Background technology]

[0002] As we enter the 5G era, the requirements for electrical connectors that serve as signal transmission carriers in the field of electronic information technology are becoming increasingly higher. Current electrical connectors are provided with insulating parts, and grounding contacts, signal contacts, and grounding parts housed in the insulating parts. The grounding parts are generally used to shield, absorb, or cooperate with the grounding contacts to increase the grounding return path, thereby optimizing the signal integrity (Signal Integrity) performance of the electrical connector, hereinafter referred to as SI performance. On this basis, if the SI performance of the electrical connector is to be further optimized, the usual idea of ​​those skilled in the art is to make the structure of the grounding part itself or the cooperation between the grounding contact and the grounding part more complicated. This design idea leads to a more complicated overall design of the electrical connector, such as the cooperation relationship between the grounding part and the insulating part, and the cooperation relationship between the grounding contact and the grounding part, etc., which leads to a decrease in the yield rate of the electrical connector and a higher production cost.

[0003] Therefore, it is necessary to design a new electrical connector to overcome the above problems. [Contents of the utility model]

[0004] In view of the problems faced by the background technology, the purpose of the invention is to provide an electrical connector that directly mates the mating portion on the grounding terminal with the lossy part, and the retaining portion of the grounding terminal is asymmetrically designed to compensate for the tolerances generated during the manufacturing and assembly processes to optimize SI performance and improve stability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical means:

[0006] An electrical connector, characterized in that it includes: an insulating body having two terminal slots arranged adjacent to each other on the left and right sides; two grounding terminals, one grounding terminal correspondingly received in one terminal slot, each grounding terminal having a retaining portion, the retaining portion including a clamping portion and a matching portion, the matching portion and the clamping portion being respectively located on the left and right sides of the retaining portion; a lossy component received in the insulating body, the lossy component being located between two adjacent grounding terminals along the left and right directions, the two matching portions being located between the two clamping portions, the two matching portions being closer to the lossy component than the two clamping portions, and the lossy component having two surfaces respectively exposed in the two terminal slots; wherein the clamping portion is clamped to a wall surface in the terminal slot, the matching portion is clamped to a surface of the lossy component exposed in the terminal slot, the width of the retaining portion along the left and right directions defines a center line, the outer end surfaces of the clamping portion and the matching portion along the left and right directions are defined as free end surfaces, and when viewed along the front-back direction, the distance between the free end surface of the matching portion and the center line is greater than the distance between the free end surface of the clamping portion and the center line.

[0007] Furthermore, the lossy part is integrally formed in the accommodating cavity of the insulating body. Along the left-right direction, the surface and the wall surface on the same side of the grounding terminal are staggered left and right to form a step surface, the positioning portion is located above the step surface, and the matching portion is located below the step portion.

[0008] Furthermore, the holding portion includes a positioning portion, a first end face and a second end face. The positioning portion, the matching portion, the first end face and the second end face are located on the same side of the left and right sides of the holding portion. The positioning portion is located above the matching portion, the first end face is located above the positioning portion, the second end face is located between the positioning portion and the matching portion, and the second end face is arranged farther away from the wall than the first end face.

[0009] Furthermore, the retaining portion has two positioning portions and a shoulder portion, and the two positioning portions are aligned and arranged on the left and right sides of the retaining portion, and the shoulder portion is arranged on one of the left and right sides of the retaining portion. The positioning portion located on the same side as the shoulder portion is defined as a first positioning portion, and the other positioning portion is defined as a second positioning portion. In the process of installing the grounding terminal in the terminal slot from bottom to top, the first positioning portion is aligned with the surface of the lossy part exposed in the terminal slot on the left and right but does not contact, and the second positioning portion is interfered with a wall surface in the terminal slot, and the mating portion of the grounding terminal is displaced in a direction away from the surface. At this time, the shoulder portion abuts against another wall surface in the terminal slot, wherein the two wall surfaces are arranged opposite to each other on the left and right.

[0010] Furthermore, the retaining portion includes a first section and a second section located below the first section, the positioning portion is arranged in the second section, and a connecting groove connecting the two terminal grooves along the left-right direction is provided at the position of the first section.

[0011] Furthermore, the insulating body is provided with a convex portion on one of the front and rear sides of the connecting groove, the convex portion is aligned with at least a portion of the retaining portion, and the convex portion limits the displacement of the retaining portion in a direction close to the other grounding terminal.

[0012] Furthermore, the hardness of the lossy component is greater than that of the insulating body, and a pin is extended from the retaining portion, wherein the connection between the matching portion and the pin is in a continuous arc shape.

[0013] Furthermore, the hardness of the loss part is greater than the hardness of the insulating body, and the holding portion has two positioning portions, a clamping portion and a matching portion. The two positioning portions are respectively aligned and arranged on the left and right sides of the holding portion, the clamping portion and the matching portion are respectively located on the left and right sides of the holding portion, and the clamping portion and the matching portion are staggered left and right. Along the up and down direction, the distance between the matching portion and the positioning portion located on the same side is greater than the distance between the clamping portion and the positioning portion located on the same side.

[0014] Furthermore, during the process of installing the grounding terminal in the terminal slot along the up and down directions, the positioning portion and the matching portion located on the same side of the left and right sides of the grounding terminal successively enter the terminal slot. When viewed along the front and back directions, when the positioning portion and the loss part are aligned left and right, the positioning portion and the loss part do not contact.

[0015] Furthermore, at least a portion of the matching portion is aligned with the surface along the left-right direction and a gap exists therein, and a width of the gap along the left-right direction is no greater than 0.2 mm.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The electrical connector is provided with a lossy part to absorb the crosstalk of its internal or external crosstalk source to the electrical connector, so as to improve the integrity (Signal Integrity) of the signal transmitted by the electrical connector, hereinafter referred to as SI performance; further, in order to conduct the lossy part and the grounding terminal to form a grounding path, so as to expose part of the lossy part in the terminal slot, the mating part of the retaining part of the grounding terminal is clamped with the lossy part exposed in the terminal slot, and the clamping part of the retaining part of the grounding terminal is clamped with the insulating body, so as not only to achieve the grounding terminal being fixed to the insulating body and the conductive plastic, but also to provide stability of the combination of the insulating body and the conductive plastic. Generally speaking, those skilled in the art will not have special settings for the shape of the grounding terminal. In other words, the grounding terminal is generally a left-right symmetrical structure. In the utility model, the distance between the free end face of the mating part of the grounding terminal and the center line defined by the retaining part is set to be greater than the distance between the free end face of the clamping part of the grounding terminal and the center line defined by the retaining part. The distance between the defined center lines is determined, so that the positions of the grounding terminal and the retaining portion are set to an asymmetric structure. Compared with setting the retaining portion symmetrically about the center line axis with the narrower side having the clamping portion, the utility model solves the problem that the width of the retaining portion is insufficient due to tolerance problems in the production and manufacturing process of the grounding terminal and the terminal slot, thereby causing unstable interference fit between the grounding terminal and the terminal slot; compared with setting the retaining portion symmetrically about the center line axis with the wider side having the matching portion, the utility model has both miniaturization and terminal density; in addition, since the loss part is arranged between the two grounding terminals and the two matching portions are located between the two clamping portions, it is comprehensively considered that one side of the matching portion corresponding to the retaining portion and the loss part is set to be wider, which is more conducive to the coupling of the grounding terminal and the loss part, thereby facilitating the SI performance of the electrical connector.

Brief Description of the Drawings

[0018] Figure 1 It is a three-dimensional diagram of the electrical connector of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of the electric connector along the left and right directions (only a portion is shown), and showing the state when the ground terminal is not fully installed in the terminal slot;

[0020] Figure 3 for Figure 1 A cross-sectional view of the CEC connector along the left and right directions (only a portion is shown);

[0021] Figure 4 for Figure 3 A magnified view at point A;

[0022] Figure 5 is a three-dimensional diagram of two grounding terminals;

[0023] Figure 6 This is a front view of the two grounding terminals.

[0024] Description of the accompanying drawings for the specific implementation:

[0025] Electrical connector 100

[0026] Insulation body 1 Terminal slot 10 Wall surface 101

[0027] Step surface 102 Communication groove 11 Protrusion 12

[0028] Storage tank 13

[0029] Ground terminal 2 Arm portion 21 Holding portion 22

[0030] Clamping portion 220 First positioning portion 221 Second positioning portion 222

[0031] Matching portion 223 First end surface 224 Second end surface 225

[0032] Shoulder 226 Pin 23 Connecting portion 230

[0033] Consumable part 3 Surface 30

[0034] Signal terminal 4 Tin material Q PCB200 [Specific implementation method]

[0035] In order to facilitate a better understanding of the purpose, structure, characteristics and functions of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0036] like Figures 1 to 6 As shown, the electrical connection module of the present invention defines the front-to-back direction as the X-axis, the up-down direction as the Y-axis, and the left-to-right direction as the Z-axis. Please note that the up-down, left-to-right and right-to-left of the present invention are only for the convenience of better understanding the implementation scheme of the present invention, rather than for limiting the present invention. The electrical connector 100 involved in the present invention can be any type of upright, horizontal or right-angle connector.

[0037] like Figure 1 and Figure 2As shown, the electrical connector 100 of the utility model comprises an insulating body 1, a lossy component 3, and a plurality of grounding terminals 2 and a plurality of signal terminals 4 received in the insulating body 1. The insulating body 1 is provided with a receiving groove 13 for receiving the signal terminal 4 and a terminal groove 10 for receiving the grounding terminal 2. The grounding terminal 2 and the signal terminal 4 are arranged in a row along the left-right direction, and two adjacent grounding terminals 2 are provided between two signal terminals 4. In addition, the insulating body 1 is injection-molded by molten insulating plastic or plastic material, the lossy component 3 is received in the receiving cavity of the insulating body 1, and the lossy component 3 is a conductive plastic or The lossy part 3 is made of materials such as absorbing materials, and the hardness of the lossy part 3 in this embodiment is greater than the hardness of the insulating body 1. Specifically, in this embodiment, the lossy part 3 can be connected and fixed to the insulating body 1 by secondary injection molding or two-color injection molding, that is, during the injection molding process of the insulating body 1, a receiving cavity is first reserved on the insulating body 1, and after the insulating body 1 with the reserved receiving cavity is cooled and formed, molten conductive plastic or absorbing material is injected into the receiving cavity to form the lossy part 3. Of course, in other embodiments, the lossy part 3 can also be directly assembled or accommodated in the receiving cavity in other ways, and the utility model is not limited to this.

[0038] like Figure 2 As shown, the signal terminals 4 in this embodiment are arranged in pairs and are used to transmit differential signal pairs. Of course, in other embodiments, they can also be arranged individually and used to transmit single-ended signals. The utility model does not limit the transmission mode of the signal. In other words, those skilled in the art can set the signal to be transmitted in different modes as needed.

[0039] like Figure 1 and Figure 2 As shown, two grounding terminals 2 are arranged adjacent to each other on the left and right, and one grounding terminal 2 is correspondingly accommodated in one terminal slot 10. Each grounding terminal 2 has an elastic arm portion 21, a retaining portion 22 extending downward from the elastic arm portion 21, and a pin 23 extending downward from the retaining portion 22. The elastic arm portion 21 includes a contact portion electrically contacting a docking connector. The pin 23 is soldered and connected to a PCB 200 through a tin material Q. In this embodiment, the tin material Q is spherical. Of course, in other embodiments, the arm portion 21 can be a plate-shaped terminal without elasticity, and the pin 23 can also be a dip pin or an SMT pin. The dip pin cooperates with the through hole of the PCB 200, and the SMT is soldered to the contact pad on the surface 30 of the PCB 200. The tin material can also be any other shape that meets the requirements, and the utility model is not limited to this.

[0040] like Figure 2 , Figure 5 as well as Figure 6As shown, a holding portion 22 includes two positioning portions, a clamping portion 220, a matching portion 223, and a shoulder 226. The two positioning portions are respectively located on the left and right sides of the holding portion 22, and the two positioning portions are aligned left and right. The matching portion 223 and the clamping portion 220 are respectively located on the left and right sides of the holding portion 22, and the shoulder 226, the positioning portion, and the matching portion 223 are arranged on the same side of the left and right sides of the holding portion 22. Please note that for the convenience of description, the positioning portion on the same side as the matching portion 223 and the shoulder 226 is defined as the first positioning portion. 221, the other positioning portion is defined as the second positioning, so the shoulder 226, the first positioning portion 221, and the matching portion 223 are arranged in sequence from top to bottom on the same side of the holding portion 22, the second positioning portion 222 and the clamping portion 220 are arranged in sequence from top to bottom on the other side of the holding portion 22, and the holding portion 22 is further provided with a first end face 224 and a second end face 225 located on the same side as the matching portion 223, wherein the first end face 224 is located above the first positioning portion 221, and the second end face 225 is located between the first positioning portion 221 and the matching portion 223.

[0041] like Figure 3 , Figure 4 as well as Figure 6 As shown, there is a symmetry axis between the two grounding terminals 2 so that the two grounding terminals 2 are completely symmetrical from left to right, wherein the clamping portion 220 and the matching portion 223 are staggered from left to right, that is, along the up-down direction, the distance L1 between the matching portion 223 and the first positioning portion 221 is greater than the distance L2 between the clamping portion 220 and the positioning portion located on the same side thereof; along the left-right direction, the width of the holding portion 22 defines a center line P1, and the outer end surfaces of the clamping portion 220 and the matching portion 223 along the left-right direction are defined as free end surfaces, and in the front-to-back direction, the distance L3 between the free end surface of the matching portion 223 and the center line is greater than the distance L4 between the free end surface of the clamping portion 220 and the center line, and further, in the left-to-right direction, the width of the connecting portion 230 defines a center line, and in the front-to-back direction, the distance L5 between the free end surface of the clamping portion 220 and the center line is greater than the distance L6 between the free end surface of the matching portion 223 and the center line. In addition, it is worth mentioning that the connection between the pin 23 and the matching portion 223 is connected by a continuous arc.

[0042] like Figure 2 and Figure 3As shown, each terminal groove 10 includes two wall surfaces 101 opposite to each other on the left and right, and a connecting groove 11 is arranged between two adjacent terminal grooves 10. The connecting groove 11 is arranged corresponding to the part of the retaining portion 22 of the grounding terminal 2. In other words, the retaining portion 22 is divided into a first section and a second section located below the first section. Two positioning portions, a clamping portion 220 and a matching portion 223 are all arranged in the second section, and the shoulder 226 is located in the first section. The retaining portion 22 is arranged corresponding to the connecting groove 11 at the position of the first section, that is, the first sections of the two grounding terminals 2 can be directly coupled in the magnetic field in the air through the connecting groove 11. Furthermore, a convex portion 12 is arranged on one side of the connecting groove 11 in the front-to-back direction, and the convex portion 12 cooperates with the retaining portion 22 to limit the displacement of the retaining portion 22 in the direction close to the other grounding terminal 2.

[0043] like Figure 2 and Figure 3 As shown, two adjacent grounding terminals 2 are accommodated in two adjacent terminal grooves 10, and the "accommodating cavity portion" is located between the two adjacent terminal grooves 10. Correspondingly, the portion of the loss component 3 accommodated in the above-mentioned "accommodating cavity portion" is also located between the two adjacent grounding terminals 2, and has left and right surfaces 30 exposed in the two terminal grooves 10, and along the left and right directions, the surface 30 and the wall surface 101 located on the same side of the grounding terminal 2 are staggered to the left and right to form a step surface 102, the positioning portion is located above the step surface 102, and the matching portion 223 is located below the step portion. Please note that in this embodiment, the loss component 3 is only provided on one side of the matching portion 223, but in other embodiments, the loss component 3 can also be provided on one side of the clamping portion 220.

[0044] Reference Figure 2In this embodiment, after the lossy part 3 is integrally injection-molded into the accommodating cavity and cooled and formed, the grounding terminal 2 is assembled from bottom to top into the terminal slot 10. During the assembly process, the first positioning portion 221 and the second positioning portion 222 first enter the terminal slot 10, and the second positioning portion 222 interferes with the wall surface 101 of the terminal slot 10. At this time, the clamping portion 220 and the matching portion 223 are still located below the terminal slot 10 and have not entered the terminal slot 10. The first positioning portion 221 is aligned with the surface 30 but does not contact it. At this time, the matching portion 223 moves in a direction away from the surface 30. In fact, the grounding terminal 2 rotates clockwise around the interference point between the second positioning portion 222 and the wall surface 101. The shoulder 2 The portion 26 is aligned with the wall 101 to the left and right, so that the shoulder 226 can abut the wall 101 to limit the rotational movement of the ground terminal 2; further, the clamping portion 220 and the matching portion 223 successively enter the terminal slot 10, and the clamping portion 220 interferes with the wall 101 to correct the position of the ground terminal 2 again, so that the ground terminal 2 is initially corrected from the offset position to the expected vertical position (at this time, the ground terminal 2 can be corrected to the expected position, or there may be a slight deviation from the expected position), and then the matching portion 223 interferes with the loss part 3, thereby performing the final correction on the ground terminal 2 (this correction is to compensate for the incomplete correction if the clamping portion 220 and the interference fit are avoided).

[0045] like Figure 3 As shown, the ground terminal 2 is accommodated in the terminal slot 10, that is, after the assembly is completed, along the left-right direction, the matching portion 223 is arranged closer to the lossy part 3 than the first positioning portion 221. In other words, the matching portion 223 actually extends to one side of the retaining portion 22 beyond the first positioning portion 221, and the positioning portion is clamped on the wall surface 101 in the terminal slot 10, and the matching portion 223 is clamped on the lossy part 3 exposed in the terminal slot 10, or there is a gap between the matching portion 223 and the lossy part 3. Please note that the gap is explained in detail here. In one case, due to the high hardness of the lossy part 3, when the matching portion 223 interferes with the lossy part 3, the lossy part 3 may be damaged at the interference fit position, thereby resulting in a gap between the matching portion 223 and the lossy part 3; in another case, there is a gap between the matching portion 223 and the lossy part 3 due to manufacturing tolerance, assembly tolerance or other reasons; but it should be noted that the gap in the above two cases should not be greater than 0.2 mm.

[0046] In summary, the utility model has the following beneficial effects:

[0047] 1. The electrical connector 100 is provided with a lossy part 3 to absorb the crosstalk caused by the internal or external crosstalk source, so as to improve the signal integrity (Signal Integrity) of the electrical connector 100, hereinafter referred to as SI performance; further, in order to conduct the lossy part 3 with the grounding terminal 2 to form a grounding path, so as to expose part of the lossy part 3 to the terminal slot 10, the matching part 223 of the retaining part 22 of the grounding terminal 2 is clamped with the lossy part 3 exposed in the terminal slot 10, and the positioning part of the retaining part 22 of the grounding terminal 2 is clamped with the wall surface 101 in the terminal slot 10, so that not only the grounding terminal 2 is fixed to the insulating body 1 and the conductive plastic, but also the insulating body 1 and the conductive plastic are stably combined without adding other structures, so that the overall stability of the electrical connector 100 of the utility model is higher and the signal integrity is also better; and the lossy part 3 is arranged between the two grounding terminals 2, located in the left and right directions The mating portion 223 on the same side is closer to the lossy part 3 than the positioning portion. When the mating portion 223 of the grounding terminal 2 is clamped with the lossy part 3, the two grounding terminals 2 are electrically connected through the lossy part 3, thereby increasing the ground return path of the electrical connector 100. Of course, there may also be manufacturing tolerances or other reasons that cause a gap between the mating portion 223 and the lossy part 3, or the lossy part 3 is damaged when being clamped with the mating portion 223, resulting in a gap between the mating portion 223 and the lossy part 3, resulting in the mating portion 223 and the lossy part 3 not actually contacting each other. In this case, the magnetic field generated by the tiny current in the grounding terminal 2 can still be coupled with the lossy part 3, that is, absorbed by the lossy part 3, thereby reducing the influence of the grounding terminal 2 on the SI performance of the electrical connector 100.

[0048] 2. Since the loss part 3 is integrally formed in the accommodating cavity and the loss part 3 is exposed in the terminal groove 10, in order to prevent the molten loss part 3 from entering the terminal groove 10 and affecting the assembly and fixation of the grounding terminal 2 when the loss part 3 is formed, the surface 30 of the loss part 3 and the wall 101 of the terminal groove 10 are set to be offset left and right, thereby forming a step surface 102, so that the mold during the integral molding can abut the step surface 102 to isolate the terminal groove 10 and the accommodating cavity, so that the molten loss part 3 will not enter the terminal groove 10, which ensures the assembly and fixation of the grounding terminal 2 while absorbing the crosstalk of the electric connector 100 from the internal or external crosstalk source of the electric connector 100 through the loss part 3, further improving the yield rate of the electric connector 100 and its SI performance.

[0049] 3. If the first end face 224 and the second end face 225 are aligned vertically, the width of the mating portion 223 below the second end face 225 in the vertical direction is limited because the step face 102 must be avoided, and its strength is reduced, which is not conducive to the assembly and fixation of the ground terminal 2. However, the utility model sets the second end face 225 farther from the wall surface 101 than the first end face 224, thereby avoiding the step face 102 and ensuring the strength of the mating portion 223. In addition, the increased width of the mating portion 223 is actually beneficial to the coupling of the ground terminal 2 and the lossy component 3, thereby optimizing the electrical connector.

[0050] 100% SI performance.

[0051] 4. During the process of the grounding terminal 2 being inserted into the terminal slot 10 from bottom to top, due to the setting of the step surface 102, when the second positioning portion 222 interferes with a wall surface 101 in the terminal slot 10, the first positioning portion 221 is aligned with the surface 30 of the lossy part 3 exposed in the terminal slot 10 but does not contact, so the mating portion 223 of the grounding terminal 2 at this time is displaced in the direction away from the surface 30. In other words, the displacement of the mating portion 223 is actually a rotational movement of the grounding terminal 2 centered on the clamping position of the second positioning portion 222 and a wall surface 101 in the terminal slot 10. In order to correct the grounding terminal 2, a shoulder 226 is provided on the same side of the first positioning portion 221, so that when the grounding terminal 2 rotates, the shoulder 226 can abut against the other wall surface 101 in the terminal slot 10, thereby preliminarily correcting the terminal to prevent the terminal from further rotating.

[0052] 5. The setting of the connecting groove 11 makes the two first sections interconnected, so it is filled with air, so that the grounding return path passing through the grounding terminal 2 can be coupled here through the medium of air, thereby optimizing the SI performance of the electrical connector 100; further, since the wall surface 101 needs to be clamped and fixed with the grounding terminal 2 at the position of the positioning portion, in order to ensure the stable fixation between the grounding terminal 2 and the insulating body 1, the connecting groove 11 is not provided at the position of the second section in order to ensure the strength of the insulating body 1 clamped with the positioning portion.

[0053] 6. While considering the performance of the electrical connector 100SI, its assembly stability must also be considered, and the above-mentioned protrusion 12 is set on one of the front and rear sides of the connecting groove 11, so as to limit the retaining portion 22 from approaching the other grounding terminal 2, thereby ensuring that the grounding terminal 2 will not be biased toward the other grounding terminal 2 due to the setting of the connecting groove 11 when assembled with the insulating body 1, thereby affecting the yield rate of the electrical connector 100 during production.

[0054] 7. The mating portion 223 is easily deformed or damaged when it is clamped with the harder consumable part 3. In order to disperse the mating portion 223

[0055] In order to reduce the stress on the mating portion 223, the connection between the mating portion 223 and the pin 23 is set to be a continuous arc, and the stress is quickly dispersed and transmitted to the pin 23 through the arc surface, thereby ensuring the durability of the mating portion 223.

[0056] 8. The distance between the first mating portion 223 and the positioning portion on the same side is greater than the distance between the clamping portion 220 and the positioning portion on the same side, and the two positioning portions are aligned left and right, so in fact the mating portion 223 and the clamping portion 220 are staggered up and down, and the mating portion 223 is a little lower than the clamping portion 220, which avoids the force on the first mating portion 223 being directly transmitted to the second mating portion 223 when clamped with the harder lossy part 3, thereby damaging the softer insulating body 1 clamped with the second mating portion 223.

[0057] 9. When the ground terminal 2 is inserted into the terminal slot 10 from bottom to top, the positioning portion and the matching portion 223 on the same side enter successively, and the positioning portion that enters first will not interfere with the loss part 3, so that it will not cause the loss part 3. In addition, the loss part 3 can be intact and not damaged before interfering with the matching portion 223, ensuring the loss part 3 and the matching portion

[0058] 223The stability of interference between.

[0059] 10. Generally speaking, those skilled in the art will not have any special settings for the shape of the grounding terminal 2. In other words, the grounding terminal 2 is generally a bilaterally symmetrical structure. In the present invention, the distance between the free end surface of the matching portion 223 of the grounding terminal 2 and the midline defined by the retaining portion 22 is set to be greater than the distance between the free end surface of the clamping portion 220 of the grounding terminal 2 and the midline defined by the retaining portion 22, thereby setting the position of the grounding terminal 2 and the retaining portion 22 to an asymmetrical structure. Compared with setting the retaining portion 22 symmetrically about the midline axis on the narrower side with the clamping portion 220, the present invention solves the problem that the grounding terminal 2 and the terminal slot 1 are not aligned. The tolerance problem in the manufacturing process makes the width of the retaining portion 22 insufficient, which leads to unstable interference fit between the ground terminal 2 and the terminal slot 10. Compared with setting the retaining portion 22 symmetrically with the wider side having the matching portion 223 about the midline axis, the utility model has both miniaturization and terminal density. In addition, since the lossy component 3 is arranged between the two grounding terminals 2, and the two matching portions 223 are located between the two clamping portions 220, it is considered that the side of the matching portion 223 corresponding to the retaining portion 22 and the lossy component 3 is set to be wider, which is more conducive to the coupling of the grounding terminal 2 and the lossy component 3, thereby facilitating the SI performance of the electrical connector 100.

[0060] 11. The matching portion 223 and the clamping portion 220 respectively located on the left and right sides of the holding portion 22 of the ground terminal 2 and the connecting portion 230

[0061] The distance between the defined center line is inconsistent, that is, the distance between the free end surface of the clamping portion 220 and the center line is greater than the distance between the free end surface of the matching portion 223 and the center line, so that the pin 23 is arranged close to the lossy part 3. Please note that in an ideal state, those skilled in the art hope that the grounding terminal 2 is at zero potential, that is, no current flows through it.

[0062] There is no voltage, but when the electrical connector 100 is actually working, a small current still passes through the grounding terminal 2. The small current generates a magnetic field to form an electromagnetic wave radiating outward, and this radiation is not expected by those skilled in the art. Therefore, the utility model places the pin 23 closer to the lossy part 3, so that the electromagnetic wave radiated at the pin 23 can be absorbed by the lossy part 3. In addition, along the left and right directions, the lossy part 3 is arranged between two adjacent grounding terminals 2, the two mating portions 223 are located between the two clamping portions 220, and the mating portions 223 are aligned with the surface 30 of the lossy part 3 exposed in the terminal slot 10 along the left and right directions, so that at the position of the mating portion 223, the coupling between the grounding terminal 2 and the lossy part 3 is strengthened, thereby reducing the crosstalk inside the electrical connector 100 and optimizing its SI performance.

[0063] The above detailed description is only an explanation of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. An electrical connector, characterized in that: include: An insulating body having two terminal slots adjacently arranged on the left and right sides; Two grounding terminals, one grounding terminal is correspondingly received in one terminal slot, each grounding terminal has a holding portion, the holding portion includes a clamping portion and a matching portion, the matching portion and the clamping portion are respectively located on the left and right sides of the holding portion; A lossy component is accommodated in the insulating body. Along the left-right direction, the lossy component is located between two adjacent grounding terminals. The two matching portions are located between the two clamping portions. The two matching portions are closer to the lossy component than the two clamping portions. The lossy component has two surfaces respectively exposed in the two terminal slots. Among them, the clamping part is clamped to the wall surface inside the terminal slot, the matching part is clamped to the surface of the lossy part exposed in the terminal slot, and the width of the retaining part along the left and right directions defines a center line. The outer end surfaces of the clamping part and the matching part along the left and right directions are defined as free end surfaces. When viewed along the front-to-back direction, the distance between the free end surface of the matching part and the center line is greater than the distance between the free end surface of the clamping part and the center line.

2. The electrical connector according to claim 1, wherein: The lossy part is integrally formed in the accommodating cavity of the insulating body. Along the left and right directions, the surface and the wall surface on the same side of the grounding terminal are staggered to form a step surface, the positioning part is located above the step surface, and the matching part is located below the step portion.

3. The electrical connector according to claim 1, wherein: The holding portion includes a positioning portion, a first end face and a second end face. The positioning portion, the matching portion, the first end face and the second end face are located on the same side of the left and right sides of the holding portion. The positioning portion is located above the matching portion, the first end face is located above the positioning portion, the second end face is located between the positioning portion and the matching portion, and the second end face is arranged farther away from the wall than the first end face.

4. The electrical connector according to claim 1, wherein: The holding portion has two positioning portions and a shoulder portion, the two positioning portions are aligned and arranged on the left and right sides of the holding portion, the shoulder portion is arranged on one of the left and right sides of the holding portion, the positioning portion on the same side as the shoulder portion is defined as the first positioning portion, and the other positioning portion is defined as the second positioning portion. When the grounding terminal is installed in the terminal slot from bottom to top, the first positioning portion is aligned with the surface of the lossy part exposed in the terminal slot from left to right but does not contact. The second positioning portion interferes with a wall surface in the terminal slot, and the matching portion of the grounding terminal moves away from the surface. At this time, the shoulder abuts against another wall surface in the terminal slot, wherein the two wall surfaces are arranged opposite to each other on the left and right.

5. The electrical connector according to claim 1, wherein: The holding portion includes a first section and a second section located below the first section. The positioning portion is arranged at the second section. A connecting groove connecting two terminal grooves along the left-right direction is arranged at the position of the first section.

6. The electrical connector according to claim 5, wherein: The insulating body is provided with a convex portion on one of the front and rear sides of the connecting groove. The convex portion is aligned with at least a part of the retaining portion. The convex portion limits the displacement of the retaining portion toward the direction close to the other grounding terminal.

7. The electrical connector according to claim 1, wherein: The hardness of the lossy component is greater than that of the insulating body, and a pin is extended from the holding portion, wherein the connection between the matching portion and the pin is in a continuous arc shape.

8. The electrical connector according to claim 1, wherein: The hardness of the loss part is greater than the hardness of the insulating body. The holding part has two positioning parts, a clamping part and a matching part. The two positioning parts are respectively aligned and arranged on the left and right sides of the holding part. The clamping part and the matching part are respectively located on the left and right sides of the holding part, and the clamping part and the matching part are staggered left and right. Along the up and down direction, the distance between the matching part and the positioning part located on the same side is greater than the distance between the clamping part and the positioning part located on the same side.

9. The electrical connector according to claim 1, wherein: During the process of installing the grounding terminal in the terminal slot along the up and down direction, the positioning part and the matching part located on the same side of the left and right sides of the grounding terminal successively enter the terminal slot. When the positioning part and the loss part are aligned left and right in the front and back direction, the positioning part and the loss part do not contact.

10. The electrical connector according to claim 1, wherein: At least part of the matching portion is aligned with the surface along the left-right direction and there is a gap, and the width of the gap along the left-right direction is no more than 0.2 mm.

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