Electrical connector

Abstract

The utility model discloses an electric connector, include: an insulating shell, a terminal group is set up in the insulating shell, the terminal group is equipped with a plurality of ground terminals and an insulating body, every ground terminal is equipped with a first top, a first outer bending part, a body part, a second outer bending part and a first bottom, the first top and the first bottom respectively extend the top, the bottom end of insulating body, the first outer bending part, the body part with the second outer bending part set up in the insulating body, and a conductive colloid is set up in the terminal group middle, the top, the bottom of the outer surface of conductive colloid is equipped with a plurality of upper convex parts and a plurality of lower convex parts respectively, a plurality of upper convex parts and a plurality of lower convex parts are set up in the insulating body and below respectively, a plurality of first outer bending parts and a plurality of first bottoms are electrically connected a plurality of upper convex parts and a plurality of lower convex parts respectively. Therefore the utility model discloses electric connector can improve high frequency signal.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector for improving high-frequency signals. Background Technology

[0002] With the development of technology, higher transmission speeds require a greater number of signal terminals, which increases the size of the connector structure, hindering product integration and miniaturization. Furthermore, connectors with small structures and high transmission density are prone to mutual interference between their terminals, resulting in incomplete signal transmission.

[0003] Taiwan Patent Certificate No. M560138 discloses a "connector with a conductive plastic component," which includes at least an insulating body, a terminal block, several signal terminals, several ground terminals, and at least one conductive plastic component. The signal terminals and ground terminals are respectively fixed to the terminal block, thus securing the terminal block to the insulating body. The front end of the conductive plastic component exposes a receiving space, and its rear end extends from the rear end of the insulating body. The key feature of this invention is that the conductive plastic component is disposed on the terminal block, with at least a partial area exposed above the terminal block, and it only contacts the several ground terminals. Thus, the structure of the conductive plastic component enables the connector to perform more stably during high-frequency and high-speed transmission.

[0004] However, the aforementioned conductive plastic parts have several extensions covered by the insulating body. When transmitting high-frequency signals, the internal structure of the connector can cause electromagnetic field resonance, resulting in particularly poor high-frequency characteristics in certain frequency bands. Combined with impedance mismatch, this leads to increased insertion and reflection losses, affecting crosstalk. This phenomenon is more severe at high frequencies, further impacting the signal quality transmitted by the electrical connector.

[0005] Therefore, it is necessary to provide an electrical connector that improves high-frequency signals. Utility Model Content

[0006] The purpose of this invention is to provide an electrical connector that addresses the defects and shortcomings of existing technologies.

[0007] To achieve the above objectives, this utility model discloses an electrical connector, comprising: an insulating shell; and a terminal group disposed within the insulating shell. The terminal group includes several signal terminals, several ground terminals, and an insulating body. The signal terminals and several ground terminals are fixed within the insulating body. Each ground terminal includes a contact portion, a first top, a first outward bend, a body portion, a second outward bend, a first bottom, and a soldering portion. The contact portion and the first top extend beyond the top of the insulating body. The first outward bend, the body portion, and the second outward bend are disposed within the insulating body. Within the insulating body, the first bottom and the welding portion extend beyond the bottom end of the insulating body, and the top of the inner surface of the insulating body is recessed outward to form several assembly holes; and a conductive colloid is disposed in the middle of the terminal group, with several upper protrusions and several lower protrusions respectively provided at the top and bottom ends of the outer surface of the conductive colloid, several upper protrusions being fixed in several assembly holes, several lower protrusions being disposed below the insulating body, several first outer bends being electrically connected to several upper protrusions, several first bottoms being electrically connected to several lower protrusions, and the welding portion being flush with the bottom end of the conductive colloid.

[0008] As a further improvement, each of the grounding terminals and the signal terminals is provided with a fixing portion. The fixing portion of each grounding terminal includes a first top, a first outward bend, a body portion, a second outward bend, and a first bottom. The top of the body portion bends outward and extends upward to form the first outward bend. The top of the first outward bend extends upward to form the first top. The outer edge of the bottom end of the body portion protrudes outward and extends downward to form the second outward bend. The bottom end of the second outward bend extends downward to form the first bottom.

[0009] As a further improvement, the bottom end of the first bottom is bent to one side to form a lower bend, the first bottom is connected between the body part and the lower bend, the bottom end of the lower bend extends outward to form the weld, and the lower bend and the weld are disposed below the plurality of lower protrusions.

[0010] As a further improvement, the width of the first top is greater than the width of the first outer bend, the width of the first top is greater than the width of the welded portion, the width of the first outer bend is greater than the width of the body portion, the width of the second outer bend is greater than the width of the body portion, and the width of the first bottom is greater than the width of the lower bend.

[0011] As a further improvement, each of the signal terminals has a main body portion, the outer edge of the top of the main body portion protruding outward and extending upward to form a first arc-shaped portion, the first arc-shaped portion and the first outwardly curved portion being aligned in the left and right directions of the insulating body.

[0012] As a further improvement, the outer edge of the bottom end of the main body protrudes outward and extends downward to form a second arcuate portion, which is aligned with the second outwardly curved portion in the left and right directions of the insulating body.

[0013] As a further improvement, the bottom end of the second arcuate portion extends downward to form a second bottom, the second bottom extending out of the bottom end of the insulating body, and the first bottom and the second bottom are aligned in the left and right directions of the insulating body.

[0014] As a further improvement, the bottom end of the second bottom is bent to one side to form the lower bend portion, and the second bottom is connected between the main body portion and the lower bend portion.

[0015] As a further improvement, the width of the first arc-shaped portion is greater than the width of the main body portion, the width of the second arc-shaped portion is greater than the width of the main body portion, the width of the second bottom is greater than the width of the second arc-shaped portion, and the width of the second bottom is greater than the width of the lower bend portion.

[0016] As a further improvement, this utility model discloses an electrical connector, comprising: an insulating shell; an insulating body disposed within the insulating shell; a plurality of signal terminals fixed within the insulating body; and a plurality of grounding terminals fixed within the insulating body. Each grounding terminal is provided with a contact portion, an upper bend portion, a first top, a first outer bend portion, a body portion, a second outer bend portion, a first bottom, a lower bend portion, and a soldering portion. The contact portion, the upper bend portion, and the first top extend beyond the top end of the insulating body. The first outer bend portion, the body portion, and the soldering portion... The second outer bend is disposed within the insulating body, and the first bottom, the lower bend, and the welded portion extend from the bottom end of the insulating body; and a conductive colloid is disposed between the insulating body, several signal terminals, and several grounding terminals, with several upper protrusions and several lower protrusions respectively provided at the top and bottom ends of the outer surface of the conductive colloid, several upper protrusions being fixed within the insulating body, several lower protrusions being disposed below the insulating body, several first outer bends being electrically connected to several upper protrusions, and several first bottoms being electrically connected to several lower protrusions.

[0017] As described above, the electrical connector of this invention improves its high-frequency characteristics through the structural design of the differential terminal group. Specifically, the bottom end of the upper bend of the grounding terminal extends downward to form a first top, which extends beyond the top of the insulating body. The bottom end of the first top connects to a first outer bend, which is disposed within the insulating body. The bottom end of the first outer bend connects to the body portion, which is disposed within the insulating body. The bottom end of the body portion connects to a second outer bend, which is disposed within the insulating body. The bottom end of the second outer bend connects to a second bottom, which extends beyond the bottom end of the insulating body. The bottom end of the second bottom bends to one side to form a lower bend. The bottom end of the lower bend extends outward to form a solder joint. The solder joint is flush with the bottom end of the base of the conductive adhesive. Furthermore, the electrical connector of this invention improves its high-frequency characteristics through the structural design of the conductive adhesive. The conductive adhesive has several upper protrusions and several lower protrusions. The first outward bends of the grounding terminals are electrically connected to the upper protrusions to improve the high-frequency characteristics of the electrical connector of this invention. The first bottom portions of the grounding terminals are electrically connected to the lower protrusions to improve the high-frequency characteristics of the electrical connector of this invention. Attached Figure Description

[0018] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0019] Figure 2 This is a partially exploded view of the electrical connector of this utility model.

[0020] Figure 3 The electrical connector of this utility model is along Figure 2 A magnified view of X1.

[0021] Figure 4 This is a schematic diagram of the electrical connector of this utility model.

[0022] Figure 5 The electrical connector of this utility model is along Figure 4 A cross-sectional view of the VV line.

[0023] Figure 6 This is a partially exploded view of the electrical connector of this utility model.

[0024] Figure 7 This is an exploded view of the terminal assembly of the electrical connector of this utility model.

[0025] Figure 8 This is an exploded view of the terminal assembly of the electrical connector of this utility model from another angle.

[0026] Figure 9 The electrical connector of this utility model is along Figure 6 A magnified view of X2.

[0027] The labels in the attached figures are explained as follows.

[0028] Electrical connector 100 insulating housing 1

[0029] 11 Openings 12 Circuit Board Insertion Slots

[0030] Terminal group 2 terminal modules 21, 22

[0031] Terminal 23 fixing part 231

[0032] Upper bending part 232 connecting part 233

[0033] Contact part 234, lower bending part 235

[0034] Welding part 236 Insulation body 24

[0035] Assembly hole 241, through hole 242

[0036] Inner concave portion 243 External concave portion 244

[0037] 245 protruding grounding terminal 25

[0038] First top 250, first outer curve 251

[0039] Body part 252 Second outer bend 253

[0040] First bottom 254 signal terminals 26

[0041] Second top 260 First arc section 261

[0042] Main body 262 Second arc-shaped part 263

[0043] Second bottom 264 conductive colloid 3

[0044] Base 31 Columnar part 32

[0045] Upper convex part 33 Lower convex part 34 Detailed Implementation

[0046] To illustrate in detail the technical content, structural features, objectives, and effects of the electrical connector 100 of this utility model, the following embodiments are provided in conjunction with the accompanying drawings.

[0047] Please see Figures 1 to 6 The electrical connector 100 of this utility model includes an insulating shell 1, a terminal group 2, and a conductive adhesive 3. The terminal group 2 and the conductive adhesive 3 are fixed inside the insulating shell 1. The conductive adhesive 3 is disposed in the middle of the terminal group 2.

[0048] Please see Figure 2 The insulating shell 1 has two opposing long sidewalls, each with several openings 11 that penetrate the two sidewalls. The corresponding mechanism of the terminal group 2 is fixed within one of the openings 11 to achieve positioning and fixation between the terminal group 2 and the insulating shell 1. A circuit board insertion slot 12 is formed between the two long sidewalls, for mating with a circuit board (not shown) of a terminal connector.

[0049] Please see Figures 3 to 8 The terminal group 2 includes two end sub-modules 21 and 22, and the conductive adhesive 3 is disposed between the two end modules 21 and 22. In this embodiment, the electrical connector 100 is a PCIe board-end connector. The two end modules 21 and 22 have roughly the same structure and are arranged in a mirror image. Therefore, the following description will only take end module 21 as an example. The end module 21 is provided with several terminals 23 and an insulating body 24, and the several terminals 23 are fixed in the insulating body 24.

[0050] Each terminal 23 is provided with a fixing part 231, an upper bending part 232, a connecting part 233, a contact part 234, a lower bending part 235, and a soldering part 236. The fixing part 231 is fixed inside the insulating body 24, and the top end of the fixing part 231 is bent inward to form the upper bending part 232. The upper bending part 232 extends out of the top end of the insulating body 24. The top end of the upper bending part 232 extends obliquely inward to form the connecting part 233, and the top end of the upper bending part 232 extends obliquely toward the circuit board insertion slot 12 to form the connecting part 233. The top end of the connecting part 233 is bent inward to form the contact part 234, and the top end of the connecting part 233 is bent toward the circuit board insertion slot 12 to form the contact part 234, which extends into the circuit board insertion slot 12 to abut against the circuit board (not shown) of the wire connector. The bottom end of the fixing part 231 is bent to one side to form the lower bending part 235. The lower bending part 235 extends beyond the bottom end of the insulating body 24. The bottom end of the lower bending part 235 extends outward to form the welding part 236. The welding part 236 is flush with the bottom end of the conductive colloid 3.

[0051] The terminals 23 are formed by several differential terminal groups arranged side by side. Each differential terminal group includes two ground terminals 25 and two signal terminals 26, with the two signal terminals 26 disposed between the two ground terminals 25. The fixing portion 231 of each ground terminal 25 includes a first top 250, a first outward bend 251, a body portion 252, a second outward bend 253, and a first bottom 254. The body portion 252 is fixed within the insulating body 24. The top of the body portion 252 bends outward and extends upward to form the first outward bend 251, which is fixed within the insulating body 24. The width of the first outward bend 251 is greater than the width of the body portion 252. In this embodiment, the first outward bend 251 is trapezoidal, wider at the top and narrower at the bottom. The top end of the first outward bend 251 extends upward to form a first top 250, which extends beyond the top end of the insulating body 24. The width of the first top 250 is greater than the width of the first outward bend 251. The width of the first top 250 is greater than the width of the body portion 252. The width of the first top 250 is greater than the width of the welded portion 236. The width of the first top 250 is equal to the width of the connecting portion 233.

[0052] The bottom end of the main body portion 252 bends outward and extends downward to form the second outer bend portion 253. The second outer bend portion 253 is fixed within the insulating body 24, and the width of the second outer bend portion 253 is greater than the width of the main body portion 252. In this embodiment, the second outer bend portion 253 is trapezoidal, narrower at the top and wider at the bottom. The bottom end of the second outer bend portion 253 extends downward to form the first bottom 254. The first bottom 254 extends beyond the bottom end of the insulating body 24. The width of the first bottom 254 is greater than the width of the main body portion 252. The bottom end of the first bottom 254 bends to one side to form the lower bend portion 235. The first bottom 254 connects the main body portion 252 and the lower bend portion 235, and the width of the first bottom 254 is greater than the width of the lower bend portion 235.

[0053] In this embodiment, the first top 250 extends beyond the top end of the insulating body 24, the first outward bend 251, the body portion 252, and the second outward bend 253 are disposed within the insulating body 24, and the first bottom 254 extends beyond the bottom end of the insulating body 24. The first outward bend 251 is disposed on the outside of the corresponding mechanism of the conductive colloid 3 and electrically connected to the corresponding mechanism of the conductive colloid 3 to improve the high-frequency characteristics of the electrical connector 100 of this invention. The first bottom 254 is disposed on the outside of the corresponding mechanism of the conductive colloid 3 and electrically connected to the corresponding mechanism of the conductive colloid 3 to improve the high-frequency characteristics of the electrical connector 100 of this invention.

[0054] Each signal terminal 26 has a fixing portion 231 comprising a second top 260, a first arcuate portion 261, a main body 262, a second arcuate portion 263, and a second bottom 264. The outer edge of the top end of the main body 262 of the fixing portion 231 of the signal terminal 26 protrudes outward and extends upward to form the first arcuate portion 261. The first arcuate portion 261 and the first outwardly curved portion 251 are aligned in the left-right direction of the insulating body 24. The top end of the first arcuate portion 261 extends upward to form the second top 260, which extends beyond the top end of the insulating body 24. The second top 260 and the first top 250 are aligned in the left-right direction of the insulating body 24. The outer edge of the bottom end of the main body portion 262 of the fixing portion 231 of the signal terminal 26 protrudes outward and extends downward to form the second arcuate portion 263. The second arcuate portion 263 and the second outwardly bent portion 253 are aligned in the left and right directions of the insulating body 24. The bottom end of the second arcuate portion 263 extends downward to form the second bottom 264. The second bottom 264 extends beyond the bottom end of the insulating body 24. The first bottom 254 and the second bottom 264 are aligned in the left and right directions of the insulating body 24. The bottom end of the second bottom 264 bends to one side to form the lower bent portion 235. The second bottom 264 connects the main body portion 262 and the lower bent portion 235.

[0055] The width of the second top 260 is greater than the width of the first arc-shaped portion 261, the width of the first arc-shaped portion 261 is greater than the width of the main body portion 262, the width of the second arc-shaped portion 263 is greater than the width of the main body portion 262, the width of the second bottom 264 is greater than the width of the second arc-shaped portion 263, and the width of the second bottom 264 is greater than the width of the lower bend portion 235.

[0056] The insulating body 24 is provided with several assembly holes 241, several through holes 242, several inner recesses 243, several outer recesses 244, and several protrusions 245. The top of the inner surface of the insulating body 24 is recessed outward to form several assembly holes 241. The several assembly holes 241 correspond to several first outer bends 251 of several grounding terminals 25. The several first outer bends 251 of several grounding terminals 25 are disposed within the several assembly holes 241. The corresponding mechanism of the conductive adhesive 3 is fixed to the several assembly holes 241, and the corresponding mechanism of the conductive adhesive 3 is electrically connected to the several first outer bends 251 of several grounding terminals 25 to achieve positioning and fixation of the conductive adhesive 3 and the terminal group 2, and to improve the high-frequency characteristics of the electrical connector 100 of this utility model. The top of the outer surface of the insulating body 24 is recessed inward to form several through holes 242. The plurality of through holes 242 correspond to the plurality of assembly holes 241. The plurality of through holes 242 correspond to the plurality of first outward bends 251 of the plurality of grounding terminals 25, and the plurality of first outward bends 251 of the plurality of grounding terminals 25 are disposed within the plurality of through holes 242. During manufacturing, the mold can support the plurality of first outward bends 251 of the grounding terminals 25 through the through holes 242. In this embodiment, the diameter of the assembly holes 241 is larger than the diameter of the through holes 242. However, this is not the only limitation in specific implementations.

[0057] The inner surface of the insulating body 24 is recessed outward to form a plurality of recesses 243. The recesses 243 are formed between the two assembly holes 241. A plurality of fixing portions 231 of the plurality of signal terminals 26 are disposed in the recesses 243. The recesses 243 are used to adjust the high-frequency characteristics of the electrical connector 100 of this invention. The outer surface of the insulating body 24 is recessed inward to form a plurality of outer recesses 244. The outer recesses 244 are formed between the two through holes 242. The plurality of outer recesses 244 correspond to the plurality of inner recesses 243. A plurality of fixing portions 231 of the plurality of signal terminals 26 are disposed in the outer recesses 244. The outer recesses 244 are used to adjust the high-frequency characteristics of the electrical connector 100 of this invention. In this embodiment, the length of the outer recesses 244 is greater than the length of the recesses 243. However, this is not the limitation in specific implementations, and adjustments can be made according to high-frequency characteristic requirements.

[0058] The bottom end of the outer surface of the insulating body 24 extends outward to form a plurality of protruding buckles 245. The protruding buckles 245 are formed between two external recesses 244, and the plurality of protruding buckles 245 are formed below a plurality of through holes 242. The plurality of protruding buckles 245 are fixed within a plurality of openings 11 of the insulating housing 1 to achieve positioning and fixation of the terminal group 2 and the insulating housing 1. In this embodiment, the terminal module 22 and the terminal module 21 have roughly the same structure, and will not be described in detail here.

[0059] Please see Figure 5 and Figure 9 The conductive colloid 3 has a base 31, several columnar portions 32, several upper protrusions 33, and several lower protrusions 34. In this embodiment, the conductive colloid 3 is a conductive plastic. Several welding portions 236 of several terminals 23 are flush with the bottom end of the base 31. The opposite sides of the top surface of the base 31 extend upward to form several columnar portions 32. In this embodiment, the columnar portions 32 are stepped, narrower at the top and wider at the bottom. The two insulating bodies 24 of the terminal group 2 are disposed on the opposite outer surfaces of the base 31 and the outer surfaces of the several columnar portions 32.

[0060] In the inner and outer directions, each of the columnar portions 32 corresponds to each of the terminals 23. The top ends of the outer surfaces of the columnar portions 32 corresponding to the grounding terminals 25 extend outward to form a plurality of upper protrusions 33. The plurality of first outward bends 251 of the plurality of grounding terminals 25 are electrically connected to the plurality of upper protrusions 33 to improve the high-frequency characteristics of the electrical connector 100 of this invention. The plurality of upper protrusions 33 are fixed within the plurality of assembly holes 241 of the two insulating bodies 24 of the terminal group 2 to achieve positioning and fixation of the conductive adhesive 3 and the terminal group 2.

[0061] The base 31 extends outward from the middle of its two opposing outer surfaces to form a plurality of lower protrusions 34. The two insulating bodies 24 of the terminal group 2 are disposed above the plurality of lower protrusions 34. A plurality of first bottoms 254 of a plurality of grounding terminals 25 are electrically connected to the plurality of lower protrusions 34 to improve the high-frequency characteristics of the electrical connector 100 of this invention. A plurality of lower bends 235 and a plurality of solder portions 236 of a plurality of terminals 23 extend outward from the bottom ends of the plurality of lower protrusions 34.

[0062] As described above, the electrical connector 100 of this utility model improves its high-frequency characteristics through the structural design of the differential terminal group. Specifically, the bottom end of the upper bend 232 of the grounding terminal 25 extends downward to form a first top 250, which extends beyond the top end of the insulating body 24. The bottom end of the first top 250 connects to a first outer bend 251, which is disposed within the insulating body 24. The bottom end of the first outer bend 251 connects to the body portion 252, which is disposed within the insulating body 24. The bottom end of the body portion 252 connects to a second outer bend 253, which is disposed within the insulating body 24. The bottom end of the second outer bend 253 connects to a second bottom 264, which extends beyond the bottom end of the insulating body 24. The bottom end of the second bottom 264 bends to one side to form a lower bend 235. The bottom end of the lower bend 235 extends outward to form the welding portion 236. The welding portion 236 is flush with the bottom end of the base 31 of the conductive colloid 3. Furthermore, the electrical connector 100 of this invention improves its high-frequency characteristics through the structural design of the conductive colloid 3. The conductive colloid 3 has several upper protrusions 33 and several lower protrusions 34. Several first outer bends 251 of the grounding terminal 25 are electrically connected to several upper protrusions 33 to improve the high-frequency characteristics of the electrical connector 100. Several first bottoms 254 of several grounding terminals 25 are electrically connected to several lower protrusions 34 to improve the high-frequency characteristics of the electrical connector 100.

Claims

1. An electrical connector, characterized in that, include: An insulating housing; a terminal group disposed within the insulating housing, the terminal group having several signal terminals, several ground terminals, and an insulating body, the signal terminals and ground terminals being fixed within the insulating body, each ground terminal having a contact portion, a first top, a first outward bend, a body portion, a second outward bend, a first bottom portion, and a soldering portion, the contact portion and the first top extending beyond the top of the insulating body, the first outward bend, the body portion, and the second outward bend being disposed within the insulating body, the first bottom and... The welding portion extends from the bottom end of the insulating body, and the top end of the inner surface of the insulating body is recessed outward to form several assembly holes; and a conductive colloid is disposed in the middle of the terminal group, and the top and bottom ends of the outer surface of the conductive colloid are respectively provided with several upper protrusions and several lower protrusions, several upper protrusions are fixed in several assembly holes, several lower protrusions are disposed below the insulating body, several first outer bends are electrically connected to several upper protrusions, several first bottoms are electrically connected to several lower protrusions, and the welding portion is flush with the bottom end of the conductive colloid.

2. The electrical connector as described in claim 1, characterized in that: Each of the grounding terminals and the signal terminals is provided with a fixing portion. The fixing portion of each grounding terminal includes a first top, a first outward bend, a body portion, a second outward bend, and a first bottom. The top end of the body portion bends outward and extends upward to form the first outward bend. The top end of the first outward bend extends upward to form the first top. The outer edge of the bottom end of the body portion protrudes outward and extends downward to form the second outward bend. The bottom end of the second outward bend extends downward to form the first bottom.

3. The electrical connector as described in claim 2, characterized in that: The bottom end of the first bottom is bent to one side to form a lower bend. The first bottom is connected between the body part and the lower bend. The bottom end of the lower bend extends outward to form the welded part. The lower bend and the welded part are disposed below the plurality of lower protrusions.

4. The electrical connector as described in claim 3, characterized in that: The width of the first top is greater than the width of the first outer bend, the width of the first top is greater than the width of the welded portion, the width of the first outer bend is greater than the width of the main body portion, the width of the second outer bend is greater than the width of the main body portion, and the width of the first bottom is greater than the width of the lower bend portion.

5. The electrical connector as described in claim 3, characterized in that: Each of the signal terminals has a main body portion, the outer edge of the top of the main body portion protruding outward and extending upward to form a first arc-shaped portion, the first arc-shaped portion and the first outwardly curved portion being aligned in the left and right directions of the insulating body.

6. The electrical connector as described in claim 5, characterized in that: The outer edge of the bottom end of the main body protrudes outward and extends downward to form a second arc-shaped portion, which is aligned with the second outwardly curved portion in the left and right directions of the insulating body.

7. The electrical connector as claimed in claim 6, characterized in that: The bottom end of the second arc-shaped portion extends downward to form a second bottom, which extends out of the bottom end of the insulating body. The first bottom and the second bottom are aligned in the left and right directions of the insulating body.

8. The electrical connector as claimed in claim 7, characterized in that: The bottom end of the second bottom is bent to one side to form the lower bend portion, and the second bottom is connected between the main body portion and the lower bend portion.

9. The electrical connector as claimed in claim 8, characterized in that: The width of the first arc-shaped portion is greater than the width of the main body portion, the width of the second arc-shaped portion is greater than the width of the main body portion, the width of the second bottom portion is greater than the width of the second arc-shaped portion, and the width of the second bottom portion is greater than the width of the lower bend portion.

10. An electrical connector, characterized in that, include: An insulating outer shell; an insulating body disposed within the insulating outer shell; a plurality of signal terminals fixed within the insulating body; a plurality of grounding terminals fixed within the insulating body, each grounding terminal having a contact portion, an upper bend portion, a first top, a first outer bend portion, a body portion, a second outer bend portion, a first bottom, a lower bend portion, and a welding portion, the contact portion, the upper bend portion, and the first top extending beyond the top end of the insulating body, the first outer bend portion, the body portion, and the second outer bend portion being disposed within the insulating body. The insulating body has a first bottom, a lower bend, and a welding portion extending from the bottom end of the insulating body; and a conductive colloid disposed between the insulating body, several signal terminals, and several grounding terminals. The top and bottom ends of the outer surface of the conductive colloid are respectively provided with several upper protrusions and several lower protrusions. Several upper protrusions are fixed to the insulating body, and several lower protrusions are disposed below the insulating body. Several first outer bends are electrically connected to several upper protrusions, and several first bottoms are electrically connected to several lower protrusions.

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