CN107994404B

CN107994404B - Electrical connector

Info

Publication number: CN107994404B
Application number: CN201710986501.5A
Authority: CN
Inventors: 隆权
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2017-10-20
Filing date: 2017-10-20
Publication date: 2020-04-24
Anticipated expiration: 2037-10-20
Also published as: CN107994404A

Abstract

An electrical connector for mating a mating component with a rear-facing mating surface, comprising: an insulating body; the at least one upper grounding terminal and the at least one lower grounding terminal are oppositely arranged on the insulating body from top to bottom; a shielding piece, locate go up ground terminal with between the ground terminal down, the shielding piece has an at least spring arm of buckling extension, spring arm has a first contact site, a second contact site and a third contact site that extend according to the preface, first contact site contact go up ground terminal, the second contact site contact ground terminal down, the third contact site contact is the same go up ground terminal, a first connecting portion connect first contact site with the second contact site, a second connecting portion connect the second contact site with the third contact site to improve the elasticity of the spring arm of shielding piece, reinforcing spring arm and upper and lower ground terminal's contact force, thereby reach stable ground effect, and save the electric connector of the used material of manufacturing the shielding piece.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector for improving shielding effect of a shielding plate.

Background

With the increasing frequency of the electric connector for transmitting signals, the shielding structure of the electric connector has a higher standard, and the shielding structure is required to have a better and more stable grounding effect to meet the requirement of the high-frequency transmission performance of the electric connector. The front ends of the upper and lower rows of terminals are exposed to the butt joint cavity and are used for being in butt joint with a butt joint connector, the upper row of terminals are provided with a plurality of upper grounding terminals, the lower row of terminals are provided with a plurality of lower grounding terminals, a shielding sheet is arranged between the upper and lower rows of terminals, the shielding sheet is provided with a substrate, a plurality of upper elastic arms and a plurality of lower elastic arms are formed by tearing the substrate and are respectively contacted with the upper grounding terminals and the lower grounding terminals to shield signal interference between the upper and lower rows of terminals, and the upper and lower grounding terminals are respectively welded on a grounding path on a circuit board to be contacted, so that the shielding structure is formed.

Because the upper elastic arm and the lower elastic arm are respectively formed by tearing the substrate and are arranged separately, the force arm is short, the elasticity is poor, the contact force with the upper grounding terminal and the lower grounding terminal is weak, the contact effect is unstable, the substrate area is large, the material is wasted, the charges are easy to accumulate, the shielding effect of the shielding sheet on interference signals is influenced, and the electric connector cannot achieve excellent high-frequency signal transmission performance.

The present invention is directed to the above problems and provides a new electrical connector, which adopts new technical means to solve the problems.

Disclosure of Invention

In view of the problems encountered in the prior art, it is an object of the present invention to provide an electrical connector that improves the elasticity of the spring arm of the shield plate to enhance the contact force between the spring arm and the upper and lower ground terminals, thereby achieving a stable grounding effect and saving the material used for manufacturing the shield plate.

In order to achieve the purpose, the invention adopts the following technical means:

the invention provides an electrical connector for backward insertion of a mating element, comprising: an insulating body; the at least one upper grounding terminal and the at least one lower grounding terminal are oppositely arranged on the insulating body from top to bottom; a shielding piece, locate go up ground terminal with between the ground terminal down, the shielding piece has an at least spring arm of buckling and extending, spring arm has a first contact site, a second contact site and a third contact site that extend according to the preface, first contact site contact go up ground terminal, the second contact site contact ground terminal down, the third contact site contact is same go up ground terminal, a first connecting portion are connected first contact site with the second contact site, a second connecting portion are connected the second contact site with the third contact site.

Furthermore, a bridging part is arranged between the two adjacent elastic arms and is connected with the two first connecting parts of the two adjacent elastic arms.

Further, the bridging part and the elastic arm are formed by punching the same plate, and the width of the bridging part from top to bottom is between 0.6 times and 4 times of the width of the first connecting part.

Furthermore, the elastic arm is provided with a fourth contact part extended from the third contact part and contacted with the lower grounding terminal, a third connecting part is connected with the third contact part and the fourth contact part, the bridging parts are first bridging parts, and a second bridging part is connected with two adjacent third connecting parts of the elastic arm.

Further, the third connecting portion is vertically arranged, and the insulating body abuts against the front side of the third connecting portion.

Further, the first connecting portion and the second connecting portion are symmetrically disposed about the second contact portion.

Further, the bridging part and the first connecting part are in the same plane.

Further, the second contact portion and the third contact portion are both arranged in an arc shape, the second contact portion has a first inner diameter, and the third contact portion has a second inner diameter smaller than the first inner diameter.

Further, the upper grounding terminal is arranged on an upper row of terminals, the upper row of terminals is provided with a first block and a second block which are arranged side by side from left to right, the upper row of terminals comprises a plurality of signal terminal pairs, the adjacent signal terminal pairs are separated by one upper grounding terminal, the signal terminal pairs and the upper grounding terminals are arranged on the first block, the upper row of terminals comprises a plurality of power terminals, the power terminals are arranged on the second block, and the shielding sheet is arranged under the first block and does not extend to the second block.

Further, the front end of the insulating body is provided with a butt joint groove for accommodating the butt joint element, the butt joint groove is provided with a first side wall and a second side wall which are opposite, the first side wall is closer to the first block relative to the second side wall, a first gap is formed between the first side wall and the first block, a second gap is formed between the second side wall and the second block, and the first gap is smaller than the second gap.

Further, the butt joint element is a circuit board, the front end of the circuit board is provided with an inserting end which is formed in a protruding mode, the inserting end is provided with a first side face and a second side face which are opposite, the front end of the insulating body is provided with a butt joint groove which is used for accommodating the inserting end, the butt joint groove is provided with a first side wall and a second side wall which are opposite, the first side face is limited with the first side wall, the second side face is limited with the second side wall, a plurality of gaskets are arranged on the upper surface of the inserting end in a left-right side-by-side mode, at least one gasket is used for being electrically connected with the upper grounding terminal, the plurality of gaskets are provided with a first gasket which is closest to the first side face and a second gasket which is closest to the second side face, a first space is formed between the first gasket and the first side face, and a second space is formed between the second gasket and, the first pitch is less than the second pitch.

Furthermore, the insulation body is provided with at least one slot which penetrates through the insulation body backwards, so that the shielding sheet is assembled on the insulation body from back to front, and the slot is limited to the elastic arm.

Furthermore, the insulation body comprises a shell, a first body and a second body, the lower row of terminals is arranged on the second body and assembled on the shell from back to front, the shielding sheet is assembled on the second body from back to front, and the upper row of terminals is arranged on the first body and assembled on the shell from back to front and limits the shielding sheet.

Further, the upper ground terminal presses the first contact portion and the third contact portion, the shield piece is pressed to be lowered in height, and a distance between the first contact portion and the third contact portion is increased.

Compared with the prior art, the invention has the following beneficial effects:

only one elastic arm is used for simultaneously contacting the upper grounding terminal and the lower grounding terminal, so that the elastic arm has a longer force arm, the contact force between the elastic arm and the upper grounding terminal and the contact force between the elastic arm and the lower grounding terminal are increased, and the elastic arm and the upper grounding terminal form two contact points, thereby improving the grounding effect; simultaneously first connecting portion with the second connecting portion by the second contact site links to each other, makes the structure of bullet arm is more firm, has strengthened the intensity of bullet arm makes the shielding piece is unlikely to produce obvious stress relaxation in long-term use, has guaranteed the bullet arm is in the life cycle of electric connector, with go up ground terminal with the stability of ground terminal contact down guarantees the ground effect.

[ description of the drawings ]

FIG. 1 is an exploded perspective view of the electrical connector of the present invention;

FIG. 2 is a partially exploded perspective view of the electrical connector of the present invention;

FIG. 3 is a partially exploded perspective view of the electrical connector of the present invention;

FIG. 4 is a perspective assembly view of FIG. 3;

fig. 5 is a perspective view of a shield blade of the electrical connector of the present invention;

fig. 6 is a schematic view of the shield plate of the electrical connector of the present invention mated with the lower row of terminals;

fig. 7 is a side cross-sectional view of the electrical connector of the present invention mated with a mating component;

fig. 8 is a top cross-sectional view of the electrical connector of the present invention mated with a mating component.

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

electrical connector 100	Insulating body 1	Housing 11	Butt joint groove 111	First side wall 1111
					Second side wall 1112	First gap D1	Second gap D2	First body 12	Second body 13
Slot 131	Upper row terminal 2	First block 21	Signal terminal pair22	Upper ground terminal 23
					Second block 25	Power supply terminal 26	Lower row terminal 3	Lower ground terminal 33	Zero connection terminal 34
Shielding plate 6	Elastic arm 61	First contact portion 611	First connection portion 612	Second contact portion 613
					First inner diameter R1	Second connecting portion 614	Third contact portion 615	Second inner diameter R2	Third connecting portion 616
Fourth contact portion 617	First bridge portion 618	Second bridge 619	Third bridging portion 620	Circuit board 9
					Insertion end 91	First side 911	Second side 912	Gasket 92	First gasket 921
Second pad 922	First spacing d1	Second spacing d2

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

As shown in fig. 1 and 7, the electrical connector 100 of the present invention, for mating with a mating member facing forward, includes the following main components: the connector comprises an insulating body 1, an upper row of terminals 2 and a lower row of terminals 3 which are accommodated in the insulating body 1 up and down oppositely, and a shielding sheet 6 arranged between the upper row of terminals 2 and the lower row of terminals 3.

As shown in fig. 1, 2 and 8, the insulating housing 1 has a housing 11, and a first body 12 and a second body 13 accommodated in the housing 11, the front end of the housing 11 has a docking slot 111 for accommodating the docking element, the docking slot 111 has a first sidewall 1111 and a second sidewall 1112 disposed opposite to each other in the left-right direction, and the second body 13 has a plurality of slots 131 penetrating the second body 13 toward the rear.

The upper row of terminals 2 is injection-molded (insert-molding) on the first body 12, and the lower row of terminals 3 is injection-molded (insert-molding) on the second body 13.

As shown in fig. 2 and 8, the upper row terminal 2 has a first block 21 and a second block 25 arranged side by side left and right, the first block 21 is closer to the first sidewall 1111 than the second block 25, the second block 25 is closer to the second sidewall 1112, a first gap D1 is formed between the first block 21 and the first sidewall 1111, a second gap D2 is formed between the second block 25 and the second sidewall 1112, and the first gap D1 is smaller than the second gap D2.

The first block 21 includes a plurality of signal terminal pairs 22 and a plurality of upper ground terminals 23, the plurality of upper ground terminals 23 spacing adjacent ones of the signal terminal pairs 22 apart; the second block 25 comprises a plurality of power terminals 26 for transmitting power; the upper row of terminals 2 and the lower row of terminals 3 are arranged opposite to each other up and down.

As shown in fig. 2 and 8, the lower row terminal 3 includes a plurality of signal terminal pairs 22 and a plurality of lower ground terminals 33 corresponding to the plurality of signal terminal pairs 22 and the plurality of upper ground terminals 23 in the upper row terminal 2, the plurality of lower ground terminals 33 spacing the adjacent signal terminal pairs 22, and the lower row terminal 3 further includes a plurality of zero-connecting terminals 34 forming a loop corresponding to the plurality of power terminals 26 in the upper row terminal 2 to supply power to an electrical device (not shown, the same below).

As shown in fig. 2, 5 and 8, the shielding plate 6 is disposed between the upper row terminal 2 and the lower row terminal 3, is located right below the first block 21, and does not extend to the second block 25, so as to ensure the shielding of the shielding plate 6 against the interference signals of the signal terminal pair 22 disposed in the first block 21 and the signal terminal pair 22 in the lower row terminal 3, and prevent the shielding plate 6 from being too long in the left-right direction, thereby saving material.

The shielding plate 6 has a plurality of elastic arms 61 arranged side by side left and right, each of the elastic arms 61 has a first contact portion 611, a second contact portion 613, a third contact portion 615 and a fourth contact portion 617 extending from back to front in sequence, a first connection portion 612 connects the first contact portion 611 and the second contact portion 613, a second connection portion 614 connects the second contact portion 613 and the third contact portion 615, and a third connection portion 616 connects the third contact portion 615 and the fourth contact portion 617.

As shown in fig. 4, 5 and 7, the first contact portion 611 abuts against one of the upper ground terminals 23 upward, the second contact portion 613 abuts against the lower ground terminal 33 opposite to the upper ground terminal 23 downward, the third contact portion 615 abuts against the same upper ground terminal 23 upward, and the fourth contact portion 617 abuts against the same lower ground terminal 33 downward, so that the same spring arm 61 forms two contact points with the same upper ground terminal 23 and also forms two contact points with the same lower ground terminal 33, thereby enhancing the grounding effect.

In other embodiments, only the first contact portion 611, the second contact portion 613, and the third contact portion 615 may be provided, and the fourth contact portion 617 may be omitted; the first contact portion 611 and the third contact portion 615 may be disposed to contact the lower ground terminal 33, while the second contact portion 613 and the fourth contact portion 617 contact the upper ground terminal 23.

As shown in fig. 5 and 7, the second contact portion 613 and the third contact portion 615 are disposed in a circular arc shape, the second contact portion 613 has a first inner diameter R1, the third contact portion 615 has a second inner diameter R2, and the second inner diameter R2 is smaller than the first inner diameter R1, since the larger the inner diameter is, the easier the bending is, the better the elasticity is, so that the front end of the elastic arm 61 is less likely to deform than the rear end, the front end of the elastic arm 61 is more suitable for being matched and positioned with the insulating body 1, and the rear end of the elastic arm 61 is easily stressed and extended.

As shown in fig. 5 and 7, the shielding plate 6 further includes a first bridging portion 618, which is disposed between two adjacent elastic arms 61, and connects two of the first connecting portions 612 of two adjacent spring arms 61, and supports the spring arms 61, in order to reinforce the strength of the shield plate 6 and prevent the spring arm 61 from greatly swinging left and right, the first bridging portions 618 and the spring arm 61 are punched from the same plate, the first bridging portions 618 and the two first connection portions 612 are in the same plane, and the width of the first bridging portions 618 from top to bottom is between 0.6 times and 4 times, preferably 1 time and 2.5 times, and further preferably 1.5 times, the first bridging portions 618 thus arranged have a suitable width, which can satisfy the requirement of enhancing the strength of the shielding plate 6 and save the material of the plate material used for manufacturing the shielding plate 6.

Meanwhile, a second bridging portion 619 is disposed between two adjacent elastic arms 61 and connects two adjacent third connecting portions 616 of the elastic arms 61, and the second bridging portion 619 and the first bridging portion 618 together support the elastic arms 61 together in tandem to reinforce the strength of the shielding plate 6, and the structure of the second bridging portion 619 is the same as that of the first bridging portion 618.

Furthermore, a third bridge portion 620 is disposed between two adjacent elastic arms 61 and connects two second connecting portions 614 of two adjacent elastic arms 61, so as to further enhance the strength of the shielding plate 6.

As shown in fig. 5 and 7, the first connecting portion 612 and the second connecting portion 614 are symmetrically disposed about the second contact portion 613, the third connecting portion 616 is vertically disposed and abuts forward against the second body 13 to limit the position of the spring arm 61, and the structure of the third bridge portion 620 is also the same as that of the first bridge portion 618.

It should be noted that, in other embodiments, when the size of the elastic arm 61 in the front-rear direction is small, the third bridge portion 620 is not necessary and may be omitted, and even the second bridge portion 619 may be omitted, and only the first bridge portion 618 is provided; of course, only one of the first bridging portion 618 and the second bridging portion 619 may be required, and the two may be interchanged, or one of them may be selected.

As shown in fig. 1, 7 and 8, the docking element is a circuit board 9, the front end of which has a protruding insertion end 91, the insertion end 91 has a first side face 911 and a second side face 912 opposite to each other left and right, a plurality of pads 92 are arranged side by side on the upper surface of the insertion end 91 left and right for contacting with the upper row of terminals 2, at least one of the pads 92 is used for electrically connecting the upper ground terminal 23, the plurality of pads 92 has a first pad 921 closest to the first side face 911 and a second pad 922 closest to the second side face 912, the first pad 921 and the first side face 911 have a first distance d1, the second pad 922 and the second side face 912 have a second distance d2, the first distance d1 is smaller than the second distance d2, so that the circuit board 9 is symmetrical up and down, however, the left side and the right side are asymmetrical, so that when the connector is inserted into the electric connector 100 reversely by mistake, the circuit board 9 is prevented from being conducted with the electric connector 100 by mistake, and the circuit board 9 is prevented from being adversely affected; meanwhile, in the similar electrical connector (not shown, the same below) of another specification having a longer length in the left-right direction, the second gap (not shown, the same below) of the similar electrical connector is the same as the second gap D2 of the electrical connector 100 by extending the same electrical connector 100 with the first side surface 911 as a reference surface, so that the matching between the circuit board 9 and the similar electrical connector 100 can be satisfied; for the similar circuit boards (not shown, the same below) of other specifications having longer lengths corresponding to the similar electrical connector 100, the second spacing (not shown, the same below) thereof may be allowed to be smaller than the second spacing d2 of the circuit board 9, so as to avoid that the similar electrical connector and the similar circuit board are unable to be matched with each other due to an excessive error caused by the increased lengths of the similar electrical connector and the similar circuit board, and the similar circuit board thus configured may also be matched with the electrical connector 100.

The insertion end 91 is inserted into the abutting groove 111, the first side wall 1111 and the second side wall 1112 limit the first side surface 911 and the second side surface 912, the plurality of pads 92 located on the upper surface of the insertion end 91 are electrically connected to the upper row of terminals 2, and the other plurality of pads 92 located on the lower surface of the insertion end 91 are electrically connected to the lower row of terminals 3.

In this embodiment, the upper row of terminals 2 is first injection-molded (insert-molding) on the first body 12, and then the lower row of terminals 3 is injection-molded (insert-molding) on the second body 13; then, the second body 13 is assembled with the lower row of terminals 3 from the back to the front on the housing 11; then, the shielding plate 6 is assembled into the housing 11 along the slot 131 from the back to the front, two sides of the slot 131 limit the position of the elastic arm 61, the second contact portion 613 and the fourth contact portion 617 scrape and abut against the lower ground terminal 33, until the third connecting portion 616 is stopped at the second body 13, and the third connecting portion 616 is vertically arranged or approximately vertically arranged; finally, the first body 12 and the upper row terminal 2 are assembled to the housing 11 from back to front, the upper ground terminal 23 scrapes and presses the first contact portion 611 and the third contact portion 615 downward, so that the height of the shield piece 6 is reduced, and the third connecting portion 616 is stopped by the second body 13, the elastic arm 61 is pressed to extend backward, the distance between the first contact portion 611 and the third contact portion 615 is increased, the length of the first contact portion 611 and the third contact portion 615 in the front-back direction is increased, and the shielding range of the shield piece 6 in the front-back direction is increased.

In summary, the electrical connector of the present invention has the following advantages:

1. only one elastic arm 61 is used for simultaneously contacting the upper ground terminal 23 and the lower ground terminal 33, so that the elastic arm 61 has a longer arm of force, the contact force between the elastic arm 61 and the upper ground terminal 23 and the lower ground terminal 33 is increased, and the elastic arm 61 and the upper ground terminal 23 form two contact points, thereby improving the grounding effect; meanwhile, the first connecting portion 612 and the second connecting portion 614 are connected by the second contact portion 613, so that the structure of the elastic arm 61 is more stable, the strength of the elastic arm 61 is enhanced, the shielding plate 6 is not prone to generating obvious stress relaxation in a long-term use process, the stability of the contact between the elastic arm 61 and the upper ground terminal 23 and the lower ground terminal 33 in the use period of the electrical connector 100 is ensured, and the grounding effect is ensured.

2. The first connection portion 612 and the second connection portion 614 are symmetrically arranged with respect to the second contact portion 613, so that the structure of an approximate isosceles triangle is more stable, and the first contact portion 611 and the third contact portion 615 are at the same height, so that the contact points of the first contact portion 611, the third contact portion 615 and the same upper ground terminal 23 are at the same height, and the contact stability is ensured.

3. The first bridging portions 618 are disposed between two adjacent spring arms 61, and connect two first connecting portions 612 of the adjacent spring arms 61, so that the strength of the shielding plate 6 is enhanced, and the shielding effect of the shielding plate 6 is improved; the first bridging portions 618 and the first connecting portions 612 are punched from the same plate, and the first bridging portions 618 and the first connecting portions 612 are located on the same plane, so that no antenna is formed and no antenna effect is generated; the height of the first bridging portion 618 along the vertical direction is between 0.6 and 4 times the width of the first connecting portion 612, so that the strength of the first bridging portion 618 is ensured, and the size of the first bridging portion 618 is reduced as much as possible, thereby saving material, and preventing the first connecting portion 612 from being excessively restrained by the first bridging portion 618 to influence the elasticity of the first connecting portion 612 and further influence the elasticity of the elastic arm 61.

4. The second bridge portion 619 connects the two third connecting portions 616 of the two adjacent elastic arms 61, and the second bridge portion 619 is matched with the first bridge portion 618 to support the elastic arms 61 in tandem, so as to enhance the strength of the shielding plate 6.

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 technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector for mating forwardly with a mating component, comprising:

an insulating body;

the at least one upper grounding terminal and the at least one lower grounding terminal are oppositely arranged on the insulating body from top to bottom;

a shielding piece, locate go up ground terminal with between the ground terminal down, the shielding piece has an at least spring arm of buckling and extending, spring arm has a first contact site, a second contact site and a third contact site that extend according to the preface, first contact site contact go up ground terminal, the second contact site contact ground terminal down, the third contact site contact is same go up ground terminal, a first connecting portion are connected first contact site with the second contact site, a second connecting portion are connected the second contact site with the third contact site.

2. The electrical connector of claim 1, wherein: the bridging part is arranged between the two adjacent elastic arms and is connected with the two first connecting parts of the two adjacent elastic arms.

3. The electrical connector of claim 2, wherein: the bridging part and the elastic arm are formed by punching the same plate, and the width of the bridging part from top to bottom is between 0.6 times and 4 times of the width of the first connecting part.

4. The electrical connector of claim 2, wherein: the spring arm is provided with a fourth contact part extending from the third contact part, the contact of the fourth contact part is the same as that of the lower grounding terminal, a third connecting part is connected with the third contact part and the fourth contact part, the bridging part is a first bridging part, and a second bridging part is connected with two adjacent spring arms and the third connecting parts.

5. The electrical connector of claim 4, wherein: the third connecting portion is vertically arranged, and the insulating body abuts against the front side of the third connecting portion.

6. The electrical connector of claim 1, wherein: the first connecting portion and the second connecting portion are symmetrically arranged about the second contact portion.

7. The electrical connector of claim 2, wherein: the bridging part and the first connecting part are in the same plane.

8. The electrical connector of claim 1, wherein: the second contact portion and the third contact portion are arranged in a circular arc mode, the second contact portion is provided with a first inner diameter, and the third contact portion is provided with a second inner diameter smaller than the first inner diameter.

9. The electrical connector of claim 1, wherein: the upper grounding terminal is arranged on an upper row of terminals, the upper row of terminals is provided with a first block and a second block which are arranged side by side from left to right, the upper row of terminals comprises a plurality of signal terminal pairs, the adjacent signal terminal pairs are separated by one upper grounding terminal, the signal terminal pairs and the upper grounding terminals are arranged on the first block, the upper row of terminals comprises a plurality of power terminals, the power terminals are arranged on the second block, and the shielding sheet is arranged under the first block and does not extend to the second block.

10. The electrical connector of claim 9, wherein: the front end of the insulating body is provided with a butt joint groove for accommodating the butt joint element, the butt joint groove is provided with a first side wall and a second side wall which are opposite, the first side wall is closer to the first block relative to the second side wall, a first gap is formed between the first side wall and the first block, a second gap is formed between the second side wall and the second block, and the first gap is smaller than the second gap.

11. The electrical connector of claim 1, wherein: the butt joint element is a circuit board, the front end of the circuit board is provided with a protruding insertion end, the insertion end is provided with a first side face and a second side face which are opposite, the front end of the insulating body is provided with a butt joint groove used for accommodating the insertion end, the butt joint groove is provided with a first side wall and a second side wall which are opposite, the first side face is limited with the first side wall, the second side face is limited with the second side wall, a plurality of gaskets are arranged on the upper surface of the insertion end in a left-right side-by-side mode, at least one gasket is used for electrically connecting the upper grounding terminal, the plurality of gaskets are provided with a first gasket which is closest to the first side face and a second gasket which is closest to the second side face, a first space is arranged between the first gasket and the first side face, and a second space is arranged between the second gasket and the second side face, the first pitch is less than the second pitch.

12. The electrical connector of claim 1, wherein: the insulation body is provided with at least one slot which penetrates through the insulation body backwards, so that the shielding sheet is assembled on the insulation body from back to front, and the slot is limited to the elastic arm.

13. The electrical connector of claim 1, wherein: the insulating body comprises a shell, a first body and a second body, the electric connector comprises an upper row of terminals and a lower row of terminals, the upper row of terminals comprises the upper grounding terminal, the lower row of terminals comprises the lower grounding terminal, the lower row of terminals is arranged on the second body and assembled on the shell from back to front, the shielding sheet is assembled on the second body from back to front, the upper row of terminals is arranged on the first body and assembled on the shell from back to front, and the shielding sheet is limited.

14. The electrical connector of claim 1, wherein: the upper ground terminal presses the first contact portion and the third contact portion, the shield piece is pressed to be lowered in height, and a distance between the first contact portion and the third contact portion is increased.