TWI580124B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a plurality of pairs of terminals disposed side by side in an insulative housing for clamping and electrically connecting a terminal of an inserted electrical connector.

Electrical connectors are widely used for power or signal transmission between two devices. One type of electrical connector has a plurality of pairs of terminals arranged side by side in an insulative housing for clamping and electrically connecting the terminals of an inserted electrical connector. For example, a PCIe electrical connector.

In such an assembly process, the terminals are usually inserted into the terminal fixing holes of the insulating case, and the terminals are usually provided with a plurality of hook-shaped interference portions, and the terminals are clamped to the insulating housing by the interference force. However, the terminal may be bent and deformed by the resistance during the assembly process, so that the fixing reliability of the electrical connector is lowered. In addition, the assembly speed is slow and the terminals may be damaged. In some cases, in order to strengthen the rigidity of the terminal to avoid bending deformation during the assembly process, it is necessary to use a relatively expensive metal material, which in turn leads to an increase in cost.

In addition, with the advancement of electronic transmission technology, the frequency of the electrical connector transmission signal is getting higher and higher, how to solve the above problems at the same time, and avoid the electromagnetic interference problem, in order to improve the integrity of the signal transmission. These are the issues to be solved in the industry.

The technical problem to be solved by the present invention is to provide an electrical connector in which a terminal is first fixed in a package to form a terminal cover, and then the terminal cover is assembled to the housing to provide a highly reliable fixing structure, which can be avoided. Terminal deformation and acceleration Assembly speed.

In order to solve the above technical problems, according to one aspect of the present invention, an electrical connector is provided that includes a housing and a plurality of terminal covers. The plurality of terminal blocks are fixed to the housing along a plugging direction adjacent to each other; each of the terminal blocks has a first terminal, a second terminal, and a package as differential terminals, the first terminal having the first a contact segment, a first connecting segment, and a first buried segment connecting the first contact segment and the first connecting segment, wherein any width of the first buried portion of the first terminal is greater than that of the first contact segment Width, and greater than the width of the first connecting segment; the second terminal has a second contact segment, a second connecting segment, and a second buried portion connecting the second contact segment and the second connecting segment; The first contact segment of the terminal and the second contact segment of the second terminal extend in pairs along the plugging direction; the package covers the first buried segment and the second terminal of the first terminal The second buried section; wherein the first buried section and the second buried section have corresponding bending profiles so as to exhibit an approximately equal distance attachment relationship.

The present invention has the following advantageous effects: the present invention has a highly reliable fixing structure when assembled, and does not affect efficient transmission performance. In addition, the corresponding bending shape helps to reduce the electromagnetic interference effect between the first terminal and the second terminal, and improves the integrity of the signal transmission.

In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings and the annexed drawings are intended to be illustrative and not to limit the invention.

10‧‧‧shell

101, 102‧‧‧ terminal receiving holes

11‧‧‧ rail slot

112‧‧‧Bumps

12, 13‧‧‧ hook hooks

120, 130‧‧‧ Entrance Department

122‧‧‧Nekka

15‧‧‧Limited groove

20, 30‧‧‧ terminal mounting

21, 31‧‧‧ first terminal

28, 38‧‧‧Package

211, 311‧‧‧ first contact segment

212, 312‧‧‧ first buried section

213, 313‧‧‧ first buffer

215, 315‧‧‧ first depression

216, 316‧‧‧ first oblique section

217, 317‧‧‧ first outer end

219, 319‧‧‧ first connection segment

214, 224‧‧ ‧ gripping department

22, 32‧‧‧ second terminal

221, 321‧‧‧second contact section

222, 322‧‧‧Second burial

223, 323‧‧‧Second buffer

225, 325‧‧‧ second depression

226, 326‧‧‧second oblique section

227, 327‧‧‧ second outer end

229, 329‧‧‧second connecting section

314, 324‧‧ ‧ gripping department

280, 380‧‧‧ exposed holes

281, 381‧‧‧ 插插榫

282, 382‧‧‧fixed hook

283, 383‧‧‧ positioning convex

D1, D2‧‧‧ points

b, b’‧‧‧ component height

c, c’‧‧‧ component width

Wa, Wb, Wc‧‧ Width

RL1, RL1’‧‧‧ first reference line

RL2, RL2’‧‧‧ second reference line

1 is a perspective view of an electrical connector of the present invention.

Fig. 1A is an enlarged view of a portion A in Fig. 1.

2 is a perspective view of another angle of the electrical connector of the present invention.

3 is a perspective view of the combination of the housing and the terminal cover of the present invention.

Fig. 4 is a perspective view showing the terminal closure assembly of the present invention in a divided shape.

Fig. 5 is a perspective view showing the terminal closure assembly of the present invention in an abutting shape.

Figure 6 is a side elevational view of a terminal closure of the present invention.

Figure 7 is a side elevational view of another terminal closure of the present invention.

Figure 8 is a side elevational view showing the terminal closure assembly of the present invention in an abutting shape.

Figure 9 is a cross-sectional view showing the terminal cover of the present invention assembled to the housing.

Please refer to FIG. 1 to FIG. 3 . FIG. 1 and FIG. 2 are perspective views of the electrical connector of the present invention at different angles, and FIG. 3 is a perspective view of the combination of the housing and the terminal cover of the present invention. The present invention provides an electrical connector that includes a housing 10 and a plurality of terminal wafers 20, 30. The housing 10 is made of an insulating material. Each two adjacent terminal blocks 20, 30 form a terminal wafer assembly.

As shown in FIG. 3, the housing 10 is formed with a plurality of terminal receiving holes 101, 102 along a transverse direction, that is, the X-axis direction of the coordinates in the figure. The plurality of terminal receiving holes 101 and 102 are arranged in parallel in the transverse direction to be parallel in the upper row and the lower row.

As shown in FIG. 1 and FIG. 2, the plurality of terminal blocks 20, 30 are grounded adjacent to each other in a plugging direction, and are fixed in the housing 10 in the Z-axis direction of the coordinates in the figure. Each of the terminal blocks 20, 30 has a first terminal 21, 31, a second terminal 22, 32, and a package 28, 38. One of the features of the present invention is that the package bodies 28, 38 partially cover the first terminals 21, 31 and the second terminals 22, 32 in a manner of insert molding. Buried incident molding refers to the technique of using plastic injection. Before the plastic is filled into the mold cavity of the mold, the terminal is fixedly placed in the cavity, and then the cavity is filled with plastic. Each of the first terminals 21, 31 and the second terminals 22, 32 are exposed in pairs on one side of the packages 28, 38 (such as the right side of the package 28 in FIG. 1) and along the plugging direction. (Z-axis direction) extending to the corresponding one The terminal receiving holes 101 and 102 are adjacent to each other in a direction away from the package bodies 28 and 38 to provide a clamping function. Further, the other ends of the first terminals 21 and 31 and the second terminals 22 and 32 are exposed at the other end. The other side of the package 28, 38 (such as the bottom edge of the package 28 in Figure 2). Thereby, compared with the prior art in which the terminals are assembled to the housing one by one, the terminal is not easily deformed during the assembly process, and the assembly speed can be accelerated. The present invention can provide an electrical connector having a high reliability fixed structure.

Please refer to FIG. 3 to FIG. 5. FIG. 4 is a perspective view of the terminal cover assembly of the present invention after being separated, and FIG. 5 is a perspective view of the terminal cover assembly after being assembled. In order to fix and guide the plurality of terminal covers 20 and 30 to be coupled to the housing 10, the housing 10 and the packages 28 and 38 are respectively provided with various limiting modes. First, the housing 10 is formed with a plurality of rail slots 11 near the top surface thereof; the plurality of terminal covers 20, 30 each have a plug cassette 281, 381 correspondingly coupled to the plurality of rail slots 11, The plurality of rail slots 11 are correspondingly located above the plurality of terminal receiving holes 101, 102. The plug cassettes 281, 381 of this embodiment are T-shaped along the above-described plugging direction (Z-axis direction). Please refer to FIG. 1A , which is an enlarged view of part A of FIG. 1 . The rail groove 11 is defined by two adjacent inverted T-shaped projections 112. Thereby, the offset of the terminal tabs 20, 30 with respect to the housing 10 in the transverse direction (X-axis direction) can be prevented. Since the position of the rail groove 11 corresponds to the position of the terminal receiving holes 101, 102, the above structure also has a function of guiding positioning.

In addition, the housing 10 forms a plurality of hook abutting portions 12, 13, and each of the plurality of terminal covers 20, 30 has a fixing hook 282, 382 correspondingly engaged with the plurality of hook engaging portions 12, 13 Thereby, the displacement of the plurality of terminal covers 20, 30 in the plugging direction (Z-axis direction) is restricted to prevent the plurality of terminal covers 20, 30 from coming off the housing 10. The hook butting portions 12, 13 each have an inlet portion 120, 130 (see Fig. 3) and an inner hook 122 (shown in Fig. 9).

In addition, in this embodiment, each of the two adjacent hook portions 12 and 13 is formed in the housing 10 in a manner of being staggered in the upper and lower directions, so that the plurality of hook portions 12 and 13 are along the same. The transverse direction (X-axis direction) is arranged in parallel in two rows (as shown in FIG. 3), and the fixing hooks 282, 382 of each of the two adjacent terminal covers 20, 30 are The manner in which the upper and lower staggered are protruded from the package body 28 toward the casing 10 (refer to FIG. 5, taking a terminal cover assembly as an example). This design has thicker walls between two adjacent hook abutments 12 (or 13) in the same row, thus enhancing the internal structure of the housing 10.

Furthermore, the housing 10 defines a limiting groove 15 along the transverse direction (X-axis direction), and each of the plurality of terminal covers 20, 30 has a positioning convex portion 283, 383 (see FIGS. 4 and 5). Inserted into the above-mentioned limiting groove 15 adjacent to each other, whereby the plurality of terminal covers 20, 30 can be restricted from being perpendicular to the housing 10 in the vertical direction (that is, the Y-axis direction of the coordinates). Displacement.

Referring to Figures 6 and 7, the structure of the terminal cover assembly of the present invention will be described in detail below. The package bodies 28, 38 of each of the terminal packages 20, 30 form a plurality of exposed holes 280, 380 for positioning the first terminals 21, 31 and the second terminals 22, 32 during the burying process, that is, for the mold The inner clamp clamps and fixes the first terminals 21, 31 and the second terminals 22, 32. The widths of the first terminals 21, 31 and the second terminals 22, 32 are increased corresponding to the exposed holes 280, 380 to form a partial width.

The first terminals 21, 31 have first contact segments 211, 311, first connection segments 219, 319, and first buried segments 212, 312 connecting the first contact segments 211, 311 and the first connection segments 219, 319. The second terminals 22, 32 have second contact segments 221, 321 , second connection segments 229 , 329 , and second buried segments 222 , 322 connecting the second contact segments 221 , 321 and the second connection segments 229 , 329 . . The first contact segments 211, 311 of the first terminals 21, 31 and the second contact segments 221, 321 of the second terminals 22, 32 extend in pairs (along the plugging direction) to a corresponding terminal receiving hole 101 102 (shown in Figure 3).

The first contact portion 211 (311) of each of the first terminals 21 (31) is obliquely extended from the first buffer portion 213 (313) in a direction away from the package body 28 (38) and gradually decreases in width, and then outward. Bending to form a first outer end portion 217 (317); wherein the second contact portion 221 (321) of each second terminal 22 (32) is directed away from the package body 28 (38) by the second buffer portion 223 (323) The direction extends obliquely and the width gradually decreases, then bends outward The second outer end portion 227 (327) is folded. The first contact portion 211 (311) and the second contact portion 221 (321) are brought close to each other in a direction away from the package body 28 (38).

Referring to FIG. 6 , each of the first terminals 21 has a first buffer portion 213 adjacent to the package body 28 and is connected to the first contact segment 211 and the first buried portion 212 . between. Similarly, each second terminal 22 has a second buffer portion 223 adjacent to the package body 28 and connected between the second contact segment 221 and the second buried portion 222.

Each of the first terminals 21 has a first recessed portion 215 between the first buffer portion 213 and the first buried portion 212, and each of the second terminals 22 has a second recessed portion 225 located at the second buffer portion 223 and the second portion Between two buried sections 222. The first recessed portion 215 and the second recessed portion 225 are recessed toward each other, which facilitates buffering when the first contact segment 211 and the second contact segment 221 are opened. A portion of the first width of the first buried portion 212 of each of the first terminals 21 abuts the first recess portion 215; a portion of the second width of the second buried portion 222 of each of the second terminals 22 abuts the second recess portion 225.

Referring to FIG. 7 , the second terminal cover 30 has a similar structure to the first terminal cover 20 , and each of the first terminals 31 has a first buffer portion 313 adjacent to the package 38 and connected to the first terminal. A contact segment 311 is interposed between the first buried segment 312. Each of the second terminals 32 has a second buffer portion 323 adjacent to the package body 38 and is connected between the second contact portion 321 and the second buried portion 322. Each of the first terminals 31 has a first recessed portion 315 between the first buffer portion 313 and the first buried portion 312, and each of the second terminals 32 has a second recessed portion 325 located at the second buffer portion 323 and Between two buried sections 322.

The width of the first buried segments 212, 312 of each of the first terminals 21, 31 is greater than the width of the first contact segments 211, 311 and greater than the width of the first connecting segments 219, 319. The width of the second buried segments 222, 322 of each of the second terminals 22, 32 is greater than the width of the second contact segments 221, 321 and greater than the width of the second connecting segments 229, 329. It is described from another angle that the widths of the first terminals 21, 31 and the second terminals 22, 32 buried in the packages 28, 38 are wider than the exposed portions, which facilitates between the terminals. The electromagnetic coupling effect can enhance the reflow effect of high-speed signals and improve the performance of high-speed signal transmission. Although the first buried section 212 (312) and the second buried section 222 (322) have a widened width, they are covered by the package 28 (38) without affecting the structural strength of the terminal. Taking the second buried section 222 of FIG. 6 as an example, the minimum width Wb of the second buried section 222 may be greater than the maximum width Wa of the second contact section 221. One half of the maximum width Wc of the second buried section 222 may be greater than the maximum width Wa of the second contact section 221 (ie, 0.5*Wc>Wa). The structure of the second terminal 22 can be strengthened by the maximum width of the second buried section 222 being disposed close to the position where the second terminal 22 has just entered the package body 28, and the electrical connector of the embodiment is inserted into the docking connector. The generated torque. The first buried section 212 and the two terminals of FIG. 7 have similar proportional relationships and will not be described again.

The package bodies 28, 38 of each of the terminal blocks 20, 30 form a plurality of exposed holes 280, 380 for positioning the first terminals 21, 31 and the second terminals 22, 32 during the burying process, wherein the first The widths of the buried sections 212, 312 and the second buried sections 222, 322 each have a plurality of partially enlarged nips 214, 224, 314, 324 to correspond to the plurality of exposed apertures 280, 380.

As shown in FIG. 6 and FIG. 7 , the packages 28 and 38 cover the first buried sections 212 and 312 of the first terminals 21 and 31 and the second buried sections 222 and 322 of the second terminals 22 and 32; In the case of the package 28 (or 38), the first buried section 212 (or 312) and the second buried section 222 (or 322) have corresponding bending profiles so as to exhibit an approximately equal distance attachment relationship. In the above-mentioned "corresponding bending shape", in the terminal sealing piece 20, the second buried section 222 is substantially enlarged in proportion to the first buried section 212; in the terminal sealing piece 30, the second buried section 322 is approximately scaled up for the first buried section 312. The details of the bending are detailed below. This arrangement helps to reduce the electromagnetic interference effect between the first terminal 21 (31) and the second terminal 22 (32) in the same terminal package 20 (or 30), improving the integrity of the signal transmission.

In addition, for a set of terminal package combinations, the first terminals 21, 31 of two adjacent terminal blocks 20, 30 are located in the package 28, 38, that is, The first buried sections 212, 312 have the same outer shape and correspond to the wide sides; and are exposed at the other ends of the packages 28, 38, that is, the first connecting sections 219, 319, along the package 28 The insertion direction of 38 is staggered back and forth and parallel to each other. Similarly, the second terminals 22, 32 of the two adjacent terminal blocks 20, 30 are located in the package 28, 38, that is, the second buried segments 222, 322 have the same shape and are presented. The wide sides are corresponding; and the other ends exposed to the packages 28, 38, that is, the second connecting sections 229, 329, are offset from each other along the insertion direction of the packages 28, 38 and are parallel to each other.

Please refer to FIG. 6 and FIG. 7 , and FIG. 8 , which is a side view of two adjacent terminal blocks 20 , 30 overlapping. In this embodiment, the first terminals 21, 31 of each two adjacent terminal blocks 20, 30 form a differential pair, and the first oblique portions 216, 316 having different inclination angles are The first buried sections 212, 312 are connected to the first connecting sections 219, 319 such that the first oblique portions 216, 316 of the two adjacent first terminals 21, 31 are along the transverse direction The projection is divided into Y-shaped points to define a branch point D1, as shown in FIG. In addition, the second terminals 22, 32 of each of the two adjacent terminal blocks 20, 30 form a differential pair, and the second oblique portions 226, 326 having different inclination angles are The second buried sections 222, 322 are connected to the second connecting sections 229, 329 such that the second oblique portions 226, 326 of the two adjacent second terminals 22, 32 are projected along the transverse direction Another branch point D2 is defined in the form of a Y-shaped branch, as shown in FIG. The above arrangement is to match the PCIe pin specifications such that the first connecting segments 219, 319 and the second connecting segments 229, 329 of the two adjacent terminal blocks 20, 30 are staggered.

Referring to FIG. 8, in the case of the first terminals 21, 31 of the two adjacent terminal blocks 20, 30, the branching point D1 extends along the extending direction of the first connecting segments 219, 319. The distance of a nearest outer edge (i.e., the bottom edge) defines a component height b, and the first connecting segments 219, 319 of each of the two adjacent terminal tabs 20, 30 are along the cross-cut. The projection of the direction defines a component width c, which is divided by the height b The ratio of the component width c is less than one. The smaller the value of the above component height b, the better the transmission of high speed signals. The above arrangement of the embodiment has the advantages of effectively enhancing the high-speed signal reflow effect and helping to improve the high-speed transmission performance.

Similarly, with the second terminals 22, 32 of the two adjacent terminal blocks 20, 30, the branching point D2 extends along the direction of extension of the second connecting segments 229, 329 with the package 28. The distance from the nearest outer edge (ie, the bottom edge) defines a component height b', and the second connecting segments 229, 329 of the terminal closures 20, 30 adjacent each other are adjacent to the cross section. The projection of the direction defines a component width c', the ratio of the component height b' being less than one than the component width c'.

The two buried sections in the same terminal cover have the corresponding bent profiles, which are explained below. Referring to FIG. 6 , for example, in the terminal cover 20 , the first buried portion 212 of the first terminal 21 and the second terminal 22 and the second buried portion 222 have a corresponding bent shape. For convenience of explanation, the first terminal 21 defines a first reference line RL1 along the extending direction of the first connecting segment 219. The first buried section 212 extends from the first contact segment 211 toward the side of the package 28 from the first reference line RL1 (the right side of the drawing) to the other side of the first reference line RL1 (Fig. On the left side of the formula, this part is horizontally extended. Next, the bend extends downward along the first reference line RL1 in parallel. This portion is bent and extended, and each bending angle is greater than 90 degrees. This embodiment is generally trapezoidal, and this bending angle contributes to the electromagnetic coupling effect of the high frequency signal. Then, the other side of the first reference line RL1 (the left side of the drawing) is bent. This embodiment is substantially trapezoidal, extending to one side of the first reference line RL1 (on the right side of the drawing), and finally The oblique bend extends to connect to the first connecting section 219.

Referring to FIG. 7, the terminal cover 30 is exemplified, wherein the second terminal 32 defines a second reference line RL2' along the extending direction of the second connecting portion 329, and the second buried portion 322 is covered by the second contact. The segment 321 extends toward the inside of the package body 38, that is, one side of the second reference line RL2' (the right side of the drawing) extends to the other side of the second reference line RL2' (the left side of the drawing), The portion is generally horizontally extended first and then obliquely passes through the second reference line RL2'. Then, the bend is extended downward along the second reference line RL2' Stretch. Then, the other side of the second reference line RL2' (the left side of the drawing) is bent and extended to one side of the second reference line RL2' (the right side of the drawing); each bending angle of the above bending portion More than 90 degrees, this embodiment is generally trapezoidal, and this bending angle contributes to high frequency signal transmission. Finally, the bending is extended obliquely to the second connecting section 329. Similarly, the second buried section 322 of the second terminal 32 has a bending angle in the package 38 greater than 90 degrees.

In addition, in the case of the terminal cover 20, as shown in FIG. 6, the second terminal 22 can still be provided with a second reference line RL2 which passes through at least two clamping portions 224. From another point of view, the second reference line RL2 of Fig. 6 and the second reference line RL2' of Fig. 7 are projected to overlap in the transverse direction (X-axis direction). In FIG. 6, the second terminal 22 is still extended from one side (the right side of FIG. 6) of the second reference line RL2 to the other side (the left side of FIG. 6), and then bent to one side (the right side of FIG. 6). .

In the case of the terminal cover 30, as shown in Fig. 7, the first terminal 31 can still be provided with a first reference line RL1' which is located substantially between the two clamping portions 314. From another point of view, the first reference line RL1' of Fig. 7 and the first reference line RL1 of Fig. 6 are projected to overlap in the transverse direction (X-axis direction). In FIG. 7, the first terminal 31 is still extended from one side (the right side of FIG. 7) of the first reference line RL1 to the other side (the left side of FIG. 7), and then bent to one side (the right side of FIG. 7). .

Supplementary Description Regarding the configuration of the clamping portion, in the terminal sealing sheet 20, as shown in FIG. 6, the first terminal 21 and the second terminal 22 each have a clamping portion 214, 224 located along the package body 28. The middle position in the vertical direction. The first terminal 21 has two clamping portions 214, and one clamping portion 214 is located between the clamping portion 214 and the first connecting portion 219 at the intermediate position.

In the terminal sealing piece 30, as shown in FIG. 7, the first terminal 31 and the second terminal 32 each have one clamping portion 314, 324 at an intermediate position of the package body 38 in the vertical direction. In addition, the second terminal 32 has two clamping portions 324 located on an imaginary line extending along the second connecting portion 329 (the same position as the second reference line RL2').

The feature and function of the present invention is that the first terminal 21 (31) and the second terminal 22 (32) are first fixed to the same package 28 (38) by means of burying and injection molding, and then combined by a terminal package. Thereby, the fixing structure with high reliability is assembled without affecting the high-efficiency transmission performance. In addition, the outer shapes of the first terminal 21 (31) and the second terminal 22 (32) may be designed to have different widths, thereby contributing to the first terminal pairs 21, 31 and the second of the adjacent terminal package sheets 20, 30. The electromagnetic coupling effect between the pair of terminals 22 and 32 can enhance the reflow effect of the high-speed signal and improve the high-speed transmission of the signal. The first terminal and the second terminal in the same terminal cover have corresponding bending profiles, thereby helping to reduce the electromagnetic interference effect between the first terminal and the second terminal, and improving the integrity of the signal transmission.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧shell

20, 30‧‧‧ terminal mounting

21, 31‧‧‧ first terminal

28, 38‧‧‧Package

211‧‧‧First contact segment

219, 319‧‧‧ first connection segment

22, 32‧‧‧ second terminal

221‧‧‧Second contact

229, 329‧‧‧second connecting section

380‧‧‧Exposed hole

281‧‧‧Dock card

Claims (10)

An electrical connector comprising: a housing; and a plurality of terminal covers fixed to the housing along a plugging direction adjacent to each other; each terminal cover has a first terminal as a differential terminal, and a second The first terminal has a first contact segment, a first connection segment, and a first buried segment connecting the first contact segment and the first connection segment, the first seal of the first terminal Any width of the buried section is greater than a width of the first contact segment and greater than a width of the first connecting segment; the second terminal has a second contact segment, a second connecting segment, and the connecting the second contact segment and the first a second buried section of the two connecting segments; the first contact segment of the first terminal and the second contact segment of the second terminal extend in pairs along the plugging direction; the package covers the first The first buried section of the terminal and the second buried section of the second terminal; wherein the first buried section and the second buried section have corresponding bending profiles so as to exhibit approximately equal distances Dependency relationship. The electrical connector of claim 1, wherein the first terminal of each of the two adjacent terminal blocks forms a differential pair, and the first oblique portions having different inclination angles are respectively connected to the first Between a buried section and the first connecting section, such that the projection of the first oblique portion of the two adjacent first terminals along a transverse direction is branched in a Y-shape to define a branch a point, wherein the transverse direction is perpendicular to the insertion direction; the second terminal of each of the two adjacent terminal seals forms a differential pair, and the second oblique portions having different inclination angles are respectively connected to Between the second buried section and the second connecting section, the projection of the second oblique portion of the two adjacent second terminals along the transverse direction is branched in a Y shape. The electrical connector of claim 2, wherein a distance between the branching point and an outer edge of the package along the extending direction of the first connecting segment defines a component height, and each of the two adjacent The projection of the first connecting segment of the terminal cover along the transverse direction defines a component width which is less than one ratio of the component width. The electrical connector of claim 1, wherein any width of the second buried section of each of the second terminals is greater than a width of the second contact segment and greater than a width of the second connecting segment. The electrical connector of claim 4, wherein the package body of each of the terminal packages forms a plurality of exposed holes for positioning the first terminal and the second terminal during a buried incident, wherein the first seal The buried section and the second buried section each have a plurality of partially enlarged nips corresponding to the plurality of exposed holes. The electrical connector of claim 1, wherein the first terminal defines a first reference line along an extending direction of the first connecting segment, the first buried segment is oriented by the first contact segment toward the package Extending from one side of the first reference line to the other side of the first reference line, then bending downwardly along the parallel to the first reference line, and then extending from the other side of the first reference line To one side of the first reference line, the last bend extends to the first connection section. The electrical connector of claim 6, wherein the first buried portion of the first terminal has a bending angle in the package greater than 90 degrees. The electrical connector of claim 1, wherein the housing forms a plurality of hook portions, each of the plurality of terminal strips having a fixed hook hooked to the corresponding hook portion of the hook. The electrical connector of claim 8, wherein any two adjacent fixing tabs of the terminal cover project from the different positions of the packages of the terminal packages toward the housing. The electrical connector of claim 1, wherein the housing forms a plurality of terminal receiving holes along a transverse direction; wherein the first contact segment of the first terminal and the first The second contact segments of the two terminals extend in pairs to a corresponding one of the terminal receiving holes.