CN212011334U

CN212011334U - Electrical connector

Info

Publication number: CN212011334U
Application number: CN202020454831.7U
Authority: CN
Inventors: 金左锋
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-24
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses an electric connector, an electric connection butt joint component, include: a substrate having an upper surface; a plurality of communicating bodies respectively accommodated in the substrate and exposed on the upper surface; the first terminals are provided with a first base part, a first guide part and a first elastic arm, the first guide part and the first elastic arm are located on the same side of the first base part, the free end, away from the first base part, of the first guide part is connected with a first material belt, the first guide part is fixedly connected with a communicating body in a guide mode, the vertical projection of the upper surface of the first guide part is not overlapped with the vertical projection of the upper surface of the first elastic arm, when the abutting element abuts against the first elastic arm in the direction close to the upper surface, the first elastic arm displaces in the direction close to the upper surface, and the first base part displaces in the direction away from the upper surface. Therefore, flatness and elasticity of the first terminals are good, and the first terminals are guaranteed to be stably abutted to the abutting elements.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly to an electrical connector capable of stabilizing butt joint elements.

[ background of the invention ]

An existing electrical connector includes a substrate, the substrate has a plurality of receiving holes, a plurality of terminals are correspondingly received in the plurality of receiving holes, each terminal has an elastic arm, a connecting portion and a connecting portion, the connecting portion connects the elastic arm and the connecting portion, the connecting portion is received in the receiving hole, the elastic arm is exposed outside the substrate, a mating element is abutted downwards against the elastic arm, the elastic arm contacts with the mating element to achieve electrical connection between the terminal and the mating element, the connecting portion is connected with a motherboard to achieve electrical connection between the terminal and the motherboard, and then the terminal is electrically connected with the mating element and the motherboard.

However, the assembly time is long when the terminals are assembled into the receiving holes one by one, and the flatness of the terminals cannot be ensured, and the butting element cannot simultaneously abut against the elastic arms to affect the normal use of the electrical connector. The connecting portion is accommodated in the accommodating hole, and not only is enough space required to be reserved in the accommodating hole to design a clamping structure to fix the connecting portion, but also the manufacturing process of the substrate is complex. Because the connecting part is accommodated and fixed in the accommodating hole, only the elastic arm exposed out of the substrate has an elastic deformation space to be butted with the butting element, and if the elastic arm is arranged longer to ensure elasticity, the elastic arm is easy to generate elastic fatigue after long-time use; if the elastic arm is set to be shorter to avoid fatigue, but the elastic deformation capability of the elastic arm is deteriorated, and the elastic arm is easy to generate permanent deformation and cannot recover when being butted with the butting element, so that the elastic arm cannot well contact the butting element, and the service life is shortened.

Therefore, there is a need for an improved electrical connector that overcomes the above problems.

[ Utility model ] content

To the problem that the background art faces, the utility model aims to provide a supply butt joint component butt through direct at the first terminal of base plate upper surface mounting, first material area is connected to the free end of the first portion of leading of first terminal, and first vertical projection that leads the portion of connecting at the upper surface and first elastic arm do not overlap at the vertical projection of upper surface to the roughness and the elasticity that have realized a plurality of first terminals are better and guarantee that butt joint component's electric connector is stabilized to first terminal.

In order to achieve the above object, the utility model adopts the following technical means: an electrical connector for electrically connecting a mating component, comprising: a substrate having an upper surface; a plurality of communicating bodies respectively accommodated in the substrate and exposed on the upper surface; each first terminal is provided with a first base part, a first guide part and a first elastic arm, wherein the first guide part and the first elastic arm are respectively extended from the first base part, the first guide part and the first elastic arm are positioned on the same side of the first base part, the free end of the first guide part, which is far away from the first base part, is connected with a first material belt, one first guide part is correspondingly guided and fixed on one communication body, the vertical projection of the first guide part on the upper surface is not overlapped with the vertical projection of the first elastic arm on the upper surface, when the butting element butts against the first elastic arm in the direction close to the upper surface, the first elastic arm displaces in the direction close to the upper surface, and the first base part displaces in the direction far away from the upper surface.

Further, the first elastic arm has a first connection portion located in front of the first base portion, the first connection portion and the first guide connection portion are located on the same side of the first base portion, a first turning portion is formed by extending forward from the first connection portion and in a direction close to the first guide connection portion, a first contact portion is formed by extending forward from the first turning portion, the abutting element abuts against the first contact portion in a direction close to the upper surface, and at least a part of a vertical projection of the first contact portion on the upper surface is located in front of a vertical projection of the first guide connection portion on the upper surface.

Further, a center line of a vertical projection of the first contact portion on the upper surface and a center line of a vertical projection of the first base portion on the upper surface are located on the same straight line.

Further, a center line of a vertical projection of the first contact portion on the upper surface is located between a vertical projection of the first lead portion on the upper surface and a vertical projection of the first connection portion on the upper surface.

Further, first terminal is panel stamping forming, first elastic arm has a first turn portion, first material area have certainly first leading connecting portion an organic whole extends forward and forms a second connecting portion, certainly the second connecting portion extends forward and forms a second turn portion, certainly the second turn portion extends forward and forms an operation portion, wherein, the extending direction of first connecting portion with the extending direction of second connecting portion is the same, the extending direction of first turn portion with the extending direction of second turn portion is the same, the extending direction of first contact portion with the extending direction of operation portion is the same.

The substrate has a lower surface, a plurality of second terminals are respectively and correspondingly fixed to the plurality of vias and butt-joint an electronic element, the second terminals have the same structure as the first terminals, the plurality of second terminals and the plurality of first terminals are symmetrically arranged relative to the substrate, each second terminal has a second base portion, and a second guiding portion and a second elastic arm respectively extending from the second base portion, the second guiding portion and the second elastic arm are located on the same side of the second base portion, one second guiding portion and one first guiding portion which are symmetrically arranged are fixed to the same via by laser welding, and the thickness of the via is greater than the sum of the thickness of the first guiding portion and the thickness of the second guiding portion.

Further, the first elastic arm is provided with a first flat plate part, the first guide connection part is provided with a second flat plate part, the first flat plate part, the second flat plate part and the first base part are all located on the same plane, the second flat plate part is fixed on the communicating body, a distance is formed between the first flat plate part and the second flat plate part, and the first flat plate part and the second flat plate part are arranged symmetrically.

Furthermore, the first elastic arm is provided with a first connecting portion which is bent and extends from the first flat plate portion towards the direction far away from the upper surface, the first guide connecting portion is provided with a connecting portion which is bent and extends from the second flat plate portion towards the direction far away from the upper surface, the connecting portion is connected with the first material belt, and the extending direction of the connecting portion is the same as the extending direction of the first connecting portion.

Furthermore, a concave pre-breaking part is arranged at the joint of the material connecting part and the first material belt.

Further, the width of the communicating body is larger than that of the second flat plate portion, the communicating body has a first side edge and a second side edge which are oppositely arranged, the first side edge is located between the first flat plate portion and the second flat plate portion, and the direction of the first side edge towards the first flat plate portion does not exceed the center line of the distance in a top view.

Compared with the prior art, the utility model discloses following beneficial effect has: the first guide connecting part is directly fixed on the communicating body exposed on the upper surface, a clamping structure is not required to be arranged in the substrate, the manufacturing process of the substrate is simplified, the free end of the first guide connecting part is connected with the first material belt, the first terminals are simultaneously installed on the upper surface by utilizing the first material belt, and the flatness of the first terminals is guaranteed. And because the vertical projection of the first guide connection part on the upper surface is not overlapped with the vertical projection of the first elastic arm on the upper surface, the bending difficulty is reduced, the manufacturing tolerance of the first terminal is reduced, the flatness of the first terminal is further ensured, and the butt joint element can be stably abutted to a plurality of first terminals. Under this prerequisite, first elastic arm and first basal portion are all elastically displaceable, the region that first terminal elastically deformable is longer, the elasticity of first terminal is better, is favorable to first terminal stable contact the butt joint component.

[ description of the drawings ]

Fig. 1 is a partially exploded perspective view of the electrical connector of the present invention connecting a first material strap and a second material strap;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a top view of the electrical connector of the present invention connecting a first strip of material and a second strip of material;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;

fig. 6 is a perspective view of the electric connector of the present invention with the first material strap and the second material strap removed.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

electrical connector 100	Substrate 1	Upper surface 11	Lower surface 12
				Connected body 2	First skirt 21	Second skirt 22	First terminal 3
First base 31	First resilient arm 32	First flat plate portion 321	First connecting portion 322
				First turning part 323	First contact portion 324	First guideConnecting part 33	Second flat plate part 331
Connecting part 332	First strip of material 34	Second connection portion 341	Second turning part 342
				Operation section 343	Pre-breaking part 35	Second terminal 4	Second base 41
Second resilient arm 42	Second lead-in part 43	Second strip of material 44	Center line L1
				Center line L2	Center line L3	Distance D

[ detailed description ] embodiments

In order to better understand the objects, structures, features, and functions of the present invention, the electrical connector of the present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, a partially exploded perspective view of the electrical connector 100 according to the present invention for connecting a plurality of first tapes 34 and a plurality of second tapes 44 is used to electrically connect a docking element (not shown, the same below) and an electronic element (not shown, the same below), and includes a substrate 1 and a plurality of first terminals 3 and a plurality of second terminals 4 located on two opposite surfaces of the substrate 1. The docking element is typically a chip module and the electronic element is typically a motherboard.

The substrate 1 may be formed of a wiring board (or a multilevel interconnection structure), and the substrate 1 has a plurality of stacked insulating layers and a plurality of electrical connectors provided in the insulating layers and a plurality of wires provided on the insulating layers. As shown in fig. 1 and 4, the substrate 1 includes an upper surface 11 and a lower surface 12, the substrate 1 is provided with a plurality of through holes (not shown, the same below), a plurality of communication bodies 2 are correspondingly accommodated in the plurality of through holes, the communication bodies 2 are exposed on the upper surface 11 and the lower surface 12, top surfaces (not shown, the same below) of the communication bodies 2 exposed on the upper surface 11 and the upper surface 11 are located on the same plane, and bottom surfaces (not shown, the same below) of the communication bodies 2 exposed on the lower surface 12 and the lower surface 12 are located on the same plane, but in other embodiments, the top surfaces of the communication bodies 2 exposed on the upper surface 11 may be higher than the upper surface 11, and the bottom surfaces of the communication bodies 2 exposed on the lower surface 12 may be lower than the lower surface 12. The vias 2 may be made of suitable conductors, including metals and metal alloys. The plurality of first terminals 3 are fixed to the top surfaces of the plurality of vias 2, the plurality of second terminals 4 are fixed to the bottom surfaces of the plurality of vias 2, the plurality of first terminals 3 are in contact with the mating component, and the plurality of second terminals 4 are in contact with the electronic component.

As shown in fig. 1 to 3, each of the first terminals 3 has a first base portion 31, and a first lead portion 33 and a first elastic arm 32 respectively extending from the first base portion 31, wherein the first lead portion 33 and the first elastic arm 32 are located on the same side of the first base portion 31. The free end of the first lead portion 33 away from the first base portion 31 is connected with one first material belt 34, one first lead portion 33 is correspondingly lead-connected and fixed to one communication body 2, the first lead portion 33 is welded and fixed to the communication body 2, and the first lead portion 33 and the communication body 2 may be welded and fixed by solder, may be fixed by laser welding, and may be welded and fixed by other welding methods. The vertical projection of the first guiding part 33 on the upper surface 11 does not overlap the vertical projection of the first elastic arm 32 on the upper surface 11, and when the abutting element abuts the first elastic arm 32 in a direction approaching the upper surface 11, the first elastic arm 32 is displaced in a direction approaching the upper surface 11, and the first base part 31 is displaced in a direction away from the upper surface 11.

As shown in fig. 1 to 3, the first connecting portion 33 is directly connected and fixed to the connecting body 2 exposed on the upper surface 11, a fastening structure is not required to be additionally disposed in the substrate 1, and the connecting body 2 can be fixed by directly using an inner wall of a through hole, so that a manufacturing process of the substrate 1 is simplified, the free end of the first connecting portion 33 is connected to the first tape 34, and the first terminals 3 are simultaneously mounted on the upper surface 11 by using the first tape 34, so that flatness of the first terminals 3 is ensured. And because the vertical projection of the first guide part 33 on the upper surface 11 is not overlapped with the vertical projection of the first elastic arm 32 on the upper surface 11, the bending difficulty is reduced, the manufacturing tolerance of the first terminal 3 is reduced, the flatness of the first terminal 3 is further ensured, and the butt joint element can be stably abutted to a plurality of first terminals 3. Under this condition, the first elastic arm 32 and the first base 31 are both elastically displaceable, the elastically deformable region of the first terminal 3 is lengthened, and the first terminal 3 has better elasticity, which is beneficial for the first terminal 3 to stably contact the first mating element.

As shown in fig. 2 to 4, the first elastic arm 32 has a first flat plate portion 321 and a first connecting portion 322 sequentially extending forward from the first base portion 31, the first connecting portion 322 is located in front of the first base portion 31, the first connecting portion 322 and the first guiding portion 33 are located on the same side of the first base portion 31, a first turning portion 323 extends forward from the first connecting portion 322 and toward a direction close to the first guiding portion 33, a first contact portion 324 extends forward from the first turning portion 323, the abutting element abuts against the first contact portion 324 toward a direction close to the upper surface 11, and at least a partial vertical projection of the first contact portion 324 on the upper surface 11 is located in front of a vertical projection of the first guiding portion 33 on the upper surface 11. The first turning part 323 is utilized to enable at least a partial vertical projection of the first contact part 324 on the upper surface 11 to be located in front of a vertical projection of the first lead-in part 33 on the upper surface 11, which is beneficial to eliminating partial bending moment, so that the stress distribution of the first terminal 3 is relatively uniform, the first lead-in part 33 can be prevented from being separated from the communication body 2 due to torsion of force, and the structure of the first terminal 3 is relatively stable.

As shown in fig. 2 to 4, a center line L1 of the vertical projection of the first contact portion 324 on the upper surface 11 is aligned with a center line L2 of the vertical projection of the first base portion 31 on the upper surface 11. When the abutting element abuts against the first contact portion 324 in a direction close to the upper surface 11, the first contact portion 324 is displaced in a direction close to the upper surface 11, and the first base portion 31 is displaced in a direction away from the upper surface 11, which is beneficial to maintaining the balance stability of the first terminal 3. And a center line L1 of a vertical projection of the first contact portion 324 on the upper surface 11 is located between a vertical projection of the first lead-in portion 33 on the upper surface 11 and a vertical projection of the first connection portion 322 on the upper surface 11. The stress distribution of the first terminal 3 is uniform, so that the first lead portion 33 can be prevented from being separated from the via 2 due to the torsion of force, and the structure of the first terminal 3 is stable.

As shown in fig. 2 to 4, the first terminal 3 is formed by stamping a plate, the first material strap 34 has a second connecting portion 341 integrally extending forward from the first connecting portion 33, a second turning portion 342 extending forward from the second connecting portion 341, and an operating portion 343 extending forward from the second turning portion 342. The extending direction of the first connection portion 322 is the same as the extending direction of the second connection portion 341, the extending direction of the first turn portion 323 is the same as the extending direction of the second turn portion 342, and the extending direction of the first contact portion 324 is the same as the extending direction of the operation portion 343. In the process of plate stamping forming, because first connecting portion 322 with between the second connecting portion 341 first turning portion 323 with between the second turning portion 342 and first contact portion 324 with all be parallel to each other between the operating portion 343, give way each other, make things convenient for disposable stamping forming first terminal 3, the machining precision is high, is breaking also can not cut during first material area 34 and rub and touch the structure of first terminal 3 is favorable to first terminal 3 stabilizes the butt joint component.

As shown in fig. 2 to 4, the first connecting portion 33 has a second flat plate portion 331, and the first flat plate portion 321, the second flat plate portion 331 and the first base portion 31 are all located on the same plane, so as to facilitate punch forming without bending. The second flat plate portion 331 is fixed to the communication body 2, and the first flat plate portion 321 and the second flat plate portion 331 are symmetrically arranged with a distance D therebetween, which is advantageous for maintaining the overall stability of the first terminal 3, and the distance D is arranged to prevent solder from climbing up to the first flat plate portion 321 when the first lead-in portion 33 is soldered to the communication body 2 by solder.

As shown in fig. 2 to 4, the first guiding portion 33 has a connecting portion 332 bent and extended from the second flat plate portion 331 toward a direction away from the upper surface 11, the connecting portion 332 is connected to the second connecting portion 341 of the first material tape 34, and an extending direction of the connecting portion 332 is the same as an extending direction of the first connecting portion 322. Make things convenient for one shot forming first terminal 3, the machining precision is higher, is breaking also can not cut and rub during first material area 34 and touch first terminal 3's structure. And when the first lead part 33 is soldered to the via 2 by solder, the connecting material 332 bent in a direction away from the upper surface 11 prevents the solder from climbing up to the connecting material 332. The connection part 332 and the second connection part 341 of the first tape 34 have a recessed pre-breaking part 35, and the recessed pre-breaking part 35 not only can facilitate breaking the first tape 34, but also can accommodate solder climbing to the pre-breaking part 35.

As shown in fig. 2 to 4, the width of the communicating body 2 is larger than the width of the second flat plate portion 331, the communicating body 2 has a first side edge 21 and a second side edge 22 which are oppositely arranged, the first side edge 21 is located between the first flat plate portion 321 and the second flat plate portion 331, and the direction of the first side edge 21 toward the first flat plate portion 321 does not exceed the center line L3 of the distance D in a top view. While the second flat plate portion 331 is secured to the via 2 stably, when the first lead-in portion 33 is soldered to the via 2 with solder, the solder can be prevented from standing on the first flat plate portion 321.

As shown in fig. 1, 3 and 5, each of the second terminals 4 has the same structure as the first terminal 3, and the plurality of second terminals 4 and the plurality of first terminals 3 are symmetrically disposed with respect to the substrate 1, each of the second terminals 4 has a second base portion 41, and a second lead portion 43 and a second elastic arm 42 respectively extending from the second base portion 41, the second lead portions 43 and the second elastic arms 42 are located on the same side of the second base portion 41, and each of the symmetrically disposed second lead portions 43 and the symmetrically disposed first lead portions 33 is fixed to the same via 2 by laser welding, and the thickness of the via 2 is greater than the sum of the thickness of the first lead portion 33 and the thickness of the second lead portion 43, so as to avoid laser breakdown of the substrate 1. The second terminal 4 and the first terminal 3 are identical in structure and symmetrically arranged on the upper surface 11 and the lower surface 12 of the substrate 1, the first terminal 3 is stably butted with the butting element, the second terminal 4 is stably butted with the electronic element, the elasticity of the first terminal 3 is identical to that of the second terminal 4, the first terminal 3 and the second terminal 4 are symmetrically elastically deformed, and the overall stability of the electric connector 100 is high.

As shown in fig. 1, 3 and 5, a free end of the second guiding portion 43 away from the second base portion 41 is connected to a second tape 44, and a plurality of second terminals 4 are simultaneously mounted on the lower surface 12 by the second tape 44, so that the flatness of the second terminals 4 is ensured. The second terminal 4 and the first terminal 3 have the same structure, and are not described in detail herein.

As shown in fig. 6, after the plurality of first terminals 3 and the plurality of second terminals 4 are welded and fixed to the plurality of via bodies 2, the plurality of first tapes 34 and the plurality of second tapes are folded.

To sum up, the utility model discloses there is following beneficial effect:

1. the first guiding and connecting portion 33 is directly guided and fixed to the communicating body 2 exposed on the upper surface 11, a clamping structure is not required to be arranged in the substrate 1, the manufacturing process of the substrate 1 is simplified, the free end of the first guiding and connecting portion 33 is connected with the first material belt 34, the first material belt 34 is used for installing the first terminals 3 on the upper surface 11 at the same time, and the flatness of the first terminals 3 is guaranteed. And because the vertical projection of the first guide part 33 on the upper surface 11 is not overlapped with the vertical projection of the first elastic arm 32 on the upper surface 11, the bending difficulty is reduced, the manufacturing tolerance of the first terminal 3 is reduced, the flatness of the first terminal 3 is further ensured, and the butt joint element can be stably abutted to a plurality of first terminals 3. Under this condition, the first elastic arm 32 and the first base 31 are both elastically displaceable, the elastically deformable region of the first terminal 3 is lengthened, and the first terminal 3 has better elasticity, which is beneficial for the first terminal 3 to stably contact the first mating element.

2. In the process of plate stamping forming, because first connecting portion 322 with between the second connecting portion 341 first turning portion 323 with between the second turning portion 342 and first contact portion 324 with all be parallel to each other between the operating portion 343, give way each other, make things convenient for disposable stamping forming first terminal 3, the machining precision is high, is breaking also can not cut during first material area 34 and rub and touch the structure of first terminal 3 is favorable to first terminal 3 stabilizes the butt joint component.

3. The thickness of the via 2 is larger than the sum of the thickness of the first lead portion 33 and the thickness of the second lead portion 43, so that laser breakdown of the substrate 1 can be avoided. The second terminals 4 and the first terminals 3 have the same structure and are symmetrically disposed on the upper surface 11 and the lower surface 12 of the substrate 1, the first terminals 3 are stably abutted to the mating component, the second terminals 4 are stably abutted to the electronic component, the elasticity of the first terminals 3 is the same as that of the second terminals 4, and the overall stability of the electrical connector 100 is high.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector for electrically connecting a mating component, comprising:

a substrate having an upper surface;

a plurality of communicating bodies respectively accommodated in the substrate and exposed on the upper surface;

each first terminal is provided with a first base part, a first guide part and a first elastic arm, wherein the first guide part and the first elastic arm are respectively extended from the first base part, the first guide part and the first elastic arm are positioned on the same side of the first base part, the free end of the first guide part, which is far away from the first base part, is connected with a first material belt, one first guide part is correspondingly guided and fixed on one communication body, the vertical projection of the first guide part on the upper surface is not overlapped with the vertical projection of the first elastic arm on the upper surface, when the butting element butts against the first elastic arm in the direction close to the upper surface, the first elastic arm displaces in the direction close to the upper surface, and the first base part displaces in the direction far away from the upper surface.

2. The electrical connector of claim 1, wherein: the first elastic arm is provided with a first connecting part which is positioned in front of the first base part, the first connecting part and the first guide connecting part are positioned on the same side of the first base part, a first turning part is formed by extending forwards from the first connecting part and towards the direction close to the first guide connecting part, a first contact part is formed by extending forwards from the first turning part, the butting element is abutted against the first contact part towards the direction close to the upper surface, and at least part of vertical projection of the first contact part on the upper surface is positioned in front of vertical projection of the first guide connecting part on the upper surface.

3. The electrical connector of claim 2, wherein: the center line of the vertical projection of the first contact part on the upper surface and the center line of the vertical projection of the first base part on the upper surface are positioned on the same straight line.

4. The electrical connector of claim 3, wherein: the center line of the vertical projection of the first contact part on the upper surface is positioned between the vertical projection of the first guide part on the upper surface and the vertical projection of the first connecting part on the upper surface.

5. The electrical connector of claim 4, wherein: the first terminal is panel stamping forming, first elastic arm has a first turn portion, first material area have certainly first leading connecting portion an organic whole extends forward and forms a second connecting portion, certainly second connecting portion extend forward and form a second turn portion, certainly second turn portion extends forward and forms an operation portion, wherein, the extending direction of first connecting portion with the extending direction of second connecting portion is the same, the extending direction of first turn portion with the extending direction of second turn portion is the same, the extending direction of first contact portion with the extending direction of operation portion is the same.

6. The electrical connector of claim 1, wherein: the substrate is provided with a lower surface, a plurality of second terminals are respectively and correspondingly fixed on the plurality of communicating bodies and butt-joint with an electronic element, the structure of each second terminal is the same as that of the corresponding first terminal, the plurality of second terminals and the plurality of first terminals are symmetrically arranged relative to the substrate, each second terminal is provided with a second base part, and a second guide connecting part and a second elastic arm which respectively extend from the second base part, the second guide connecting part and the second elastic arm are positioned on the same side of the second base part, one second guide connecting part and one first guide connecting part which are symmetrically arranged are fixed on the same communicating body through laser welding, and the thickness of the communicating body is larger than the sum of the thickness of the first guide connecting part and the thickness of the second guide connecting part.

7. The electrical connector of claim 1, wherein: the first elastic arm is provided with a first flat plate part, the first guide connection part is provided with a second flat plate part, the first flat plate part, the second flat plate part and the first base part are all located on the same plane, the second flat plate part is fixed on the communicating body, a distance is reserved between the first flat plate part and the second flat plate part, and the first flat plate part and the second flat plate part are arranged symmetrically.

8. The electrical connector of claim 7, wherein: the first elastic arm is provided with a first connecting portion which is bent and extends from the first flat plate portion towards the direction far away from the upper surface, the first guide connecting portion is provided with a material connecting portion which is bent and extends from the second flat plate portion towards the direction far away from the upper surface, the material connecting portion is connected with the first material belt, and the extending direction of the material connecting portion is the same as the extending direction of the first connecting portion.

9. The electrical connector of claim 8, wherein: the connecting part and the first material belt are provided with a sunken pre-breaking part.

10. The electrical connector of claim 7, wherein: the width of the communicating body is larger than that of the second flat plate part, the communicating body is provided with a first side edge and a second side edge which are oppositely arranged, the first side edge is positioned between the first flat plate part and the second flat plate part, and the direction of the first side edge towards the first flat plate part does not exceed the central line of the distance in a top view.