CN210517070U

CN210517070U - Electrical connector

Info

Publication number: CN210517070U
Application number: CN201921504028.3U
Authority: CN
Inventors: 张志辉; 殷定彬
Original assignee: Alltop Electronics Suzhou Co Ltd
Current assignee: Alltop Electronics Suzhou Co Ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-05-12
Anticipated expiration: 2029-09-10

Abstract

The utility model provides an electric connector, which is provided with an insulating body and a plurality of signal terminals, wherein the insulating body is provided with a base part, a butt joint part extending forwards from the base part and a plurality of terminal grooves, the signal terminals are fixed in the corresponding terminal slots, the signal terminals are divided into two rows arranged at intervals along the height direction, each signal terminal is provided with a contact part which is positioned at the front side and is accommodated in the butt joint part, a holding part which is fixed in the insulating body and a terminal pin which is positioned at the rear side, the contact parts of any two adjacent signal terminals in each row of signal terminals are staggered along the front-back direction, at least one pair of bending parts arranged at intervals along the height direction is arranged between the holding part and the terminal pin of each signal terminal, the electric connector is also provided with an insulating piece which is assembled into the insulating body forwards, and at least one pair of bent parts of the signal terminal is embedded and molded in the insulating piece. The utility model discloses electric connector makes conveniently and assembles easily.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector.

Background

The signal terminal of the traditional electric connector is usually directly inserted into the insulating body, then bent and cut, and the welding leg of the signal terminal is fixed by using a rear cover; thus, the bending length and the bending angle of the signal terminal are not easy to control in the manufacturing process, and the signal terminal may be damaged by pressure when the rear cover is assembled, so that the voltage resistance between two adjacent signal terminals is insufficient.

In view of the above, there is a need for an improved electrical connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a convenient and easy electric connector of equipment of preparation.

To achieve the above object, the present invention provides an electrical connector, which comprises an insulating body and a plurality of signal terminals, wherein the insulating body has a base portion, a butt-joint portion extending forward from the base portion, and a plurality of terminal grooves extending in a front-rear direction, the signal terminals are fixed to the corresponding terminal grooves of the insulating body, the signal terminals are divided into two rows arranged at intervals in a height direction, each signal terminal has a contact portion located at a front side thereof and received in the butt-joint portion, a holding portion fixed in the insulating body, and a terminal pin located at a rear side thereof, the contact portions of two signal terminals adjacent to each other at will in each row of signal terminals are arranged at intervals in the front-rear direction, at least one pair of bent portions arranged at intervals in the height direction are provided between the holding portion and the terminal pin of each signal terminal, and the electrical connector further has an insulating member assembled forward into the insulating body, at least one pair of bending parts of the signal terminal is embedded and molded in the insulating piece.

As a further improvement of the present invention, the insulating member includes a first insulating member and a second insulating member assembled with each other, and two rows of signal terminals are embedded and formed in the first and second insulating members to form a first and second terminal assembly, and the first and second terminal assemblies are assembled and then are assembled together to be assembled into the insulating body.

As a further improvement, at least one of the first insulating member and the second insulating member is provided with a first buckling part buckled with the insulating body, the first insulating member and/or the second insulating member are provided with a pair of buckling arms and each on the two sides in the transverse direction, the buckling arms extend forwards to enable the front ends of the buckling arms to be free ends, the first buckling part is arranged at the free ends, the insulating body is provided with a pair of accommodating grooves which are arranged relatively and a second buckling part which is arranged in the corresponding accommodating grooves and buckled with the first buckling part.

As a further improvement of the present invention, the insulating body further has a pair of guide grooves which are provided oppositely in the lateral direction, and the first insulating member and/or the second insulating member further has a pair of guide portions which are located on both sides in the lateral direction thereof so as to be inserted into the corresponding guide grooves.

As a further improvement of the present invention, the first insulating member and the second insulating member are stacked in the height direction, and at least one of the first insulating member and the second insulating member is provided with a positioning block projecting forward to be inserted into the corresponding terminal groove.

As a further improvement, the first and second insulators are provided with at least one positioning block, and the positioning block on the first and second insulators is arranged along the transverse direction.

As a further improvement, the signal terminal that the contact site is located the front side among every row of signal terminal is first signal terminal, the signal terminal that the contact site is located the rear side is the second signal terminal, insulator is equipped with and is located a pair of barricade of terminal inslot side, each the contact site front end of first signal terminal extends forward and is formed with the head with corresponding barricade looks butt.

As a further improvement of the present invention, the insulating body further has a step portion protruding toward the terminal groove inner side and a support wall located at the bottom thereof, the step portion carries out the butt to the front section of the holding portion thereof in the outer side of the first signal terminal, the rear section of the holding portion is wrapped in the insulating member, and the support wall is received in the lower side of the insulating member.

As a further improvement of the present invention, the at least one pair of bending portions includes a first bending portion and a second bending portion, the first bending portion is bent upward to form an inclined portion, the second bending portion is bent backward to form a horizontal portion, and the terminal pin is bent downward to form a rear end of the horizontal portion.

As a further improvement of the present invention, the first and second insulating members further have a groove provided on the outer surface thereof for accommodating the terminal material strip before the non-breaking off, and the one of the first and second insulating members located on the upper side further has a plurality of positioning holes formed by penetrating the same in the height direction to partially expose the horizontal portion.

The utility model has the advantages that: the utility model discloses be provided with at least a pair of kink along the interval setting of direction of height between the terminal foot and the fixed holding portion of each signal terminal in the electric connector, the said at least a pair of kink is inlayed and is buried in the insulating part of the said electric connector, like this, the said signal terminal carries on the bending treatment before packing into the insulating body first, the bending length and bending angle are all easy to control; and the rear cover for fixing the signal terminal in the traditional electric connector is not required to be assembled, so that the signal terminal is prevented from being damaged by pressure in the subsequent assembly process, and the voltage resistance between two adjacent signal terminals can be ensured.

Drawings

Fig. 1 is a perspective assembly view of the electric connector of the present invention.

Fig. 2 is a view of the electrical connector of fig. 1 from another perspective.

Fig. 3 is an exploded perspective view of a portion of the electrical connector shown in fig. 1.

Fig. 4 is a partial schematic view of the electrical connector of fig. 1 with the signal terminals and the dielectric member removed.

Fig. 5 is a partially exploded view of the signal terminals and dielectric member of the electrical connector of fig. 3.

Fig. 6 is a view of the signal terminals and insulator of fig. 5 from another perspective.

Fig. 7 is an exploded perspective view of the signal terminal and insulator shown in fig. 4.

Fig. 8 is a perspective assembly view of the signal terminals and the insulator of the electrical connector shown in fig. 3.

Fig. 9 is a side view of the signal terminals and insulator of fig. 8.

Fig. 10 is an exploded perspective view of the insulator of fig. 8.

Fig. 11 is a cross-sectional view of the electrical connector of fig. 1 with the power terminal pair removed.

Fig. 12 is another cross-sectional view of the electrical connector of fig. 1 with the power terminal pair removed.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiment, and the structural, method, or functional changes made by those skilled in the art according to the embodiment are all included in the scope of the present invention.

Referring to fig. 1 to 12, in order to illustrate a preferred embodiment of the electrical connector 100 of the present invention, the electrical connector 100 includes an insulating housing 1 and a plurality of signal terminals 2 fixed in the insulating housing 1. For convenience of description, the following description will be made with the mating end of the electrical connector 100 as a front end and the other end opposite to the mating end as a rear end, that is, the front-rear direction is the mating direction of the electrical connector 100 and the mating element (not shown), and in addition, one direction perpendicular to the front-rear direction is defined as a transverse direction and the other direction perpendicular to the front-rear direction is defined as a height direction, and in this embodiment, the dimension of the insulating body 1 in the transverse direction is greater than the dimensions thereof in the height direction and the front-rear direction.

Referring to fig. 1 to 4, the insulating housing 1 has a base 11, a mating portion 12 extending forward from the base 11, and a plurality of terminal slots 13 extending in a front-rear direction, the mating portion 12 has a mating space 120 opened forward for receiving a mating component, the terminal slots 13 are communicated with the mating space 120 and divided into two rows spaced apart in a height direction, and the terminal slots 13 in the same row are arranged in a transverse direction.

The insulating body 1 further has an extending portion 14 extending rearward from the base portion 11, the extending portion 14 includes a pair of extending walls 141 opposite to each other in the transverse direction and spaced apart from each other, and a top wall 142 connecting top ends of the extending walls 141, the extending walls 141 are located on two sides of the signal terminal 2 in the transverse direction, and in this embodiment, rear end surfaces of the extending walls 141 are coplanar with rear end surfaces of the top wall 142. In the present invention, the mounting surface 140 at the bottom of the extension portion 14 is located above the bottom surface of the docking portion 12 in the height direction.

Referring to fig. 5 to 9 in combination with fig. 2, 3, 11 and 12, the signal terminals 2 are fixed to the corresponding terminal slots 13 of the insulating body 1 and arranged between the pair of extending walls 141, and the signal terminals 2 are divided into two rows arranged at intervals along the height direction, that is, the signal terminals 2 are divided into an upper row of signal terminals and a lower row of signal terminals.

Each of the signal terminals 2 has a contact portion 21 located at the front side thereof and received in the mating portion 12, a holding portion 22 fixed in the insulating body 1, and a terminal pin 23 located at the rear side thereof, the contact portions 21 of two adjacent signal terminals 2 in each row of signal terminals 2 are staggered in the front-rear direction, specifically, in the present invention, the signal terminal of the contact portion 21 located at the front side in each row of signal terminals 2 is a first signal terminal 2a, the signal terminal of the contact portion 21 located at the rear side is a second signal terminal 2b, and the length of the holding portion 22 of the first signal terminal 2a is longer than the length of the second signal terminal 2b in the front-rear direction.

The holding portions 22 of the upper row of signal terminals 2 are arranged in a row at the same height, and the holding portions 22 of the lower row of signal terminals 2 are arranged in a row at another height. In each row of signal terminals 2, at least some of the holding portions 22 of the signal terminals 2 have interference portions 221 located on the side portions thereof for fixedly engaging with the insulative housing 1. In the present embodiment, each of the signal terminals 2 has the interference portion 221 on both sides in the lateral direction thereof.

The terminal pins 23 of the upper row of signal terminals 2 are arranged in two rows spaced apart in the front-rear direction, the terminal pins 23 of the lower row of signal terminals 2 are arranged in another two rows spaced apart in the front-rear direction, and the terminal pins 23 of the upper row of signal terminals 2 are located at the rear side of the terminal pins 23 of the lower row of signal terminals 2, so that the terminal pins 23 of the signal terminals 2 are arranged in four rows sequentially spaced apart in the front-rear direction.

At least one pair of bent portions 24 are provided between the holding portion 22 and the terminal pin 23 of each signal terminal 2 at intervals in the height direction. In this embodiment, the at least one pair of bending portions 24 includes a first bending portion 241 and a second bending portion 242, and the first bending portion 241 is located at the front side of the second bending portion 242 in the front-back direction.

The first bent portion 241 is bent upward from the holding portion 22 to form an inclined portion 25, the second bent portion 242 is bent backward from the top end of the inclined portion 25 to form a horizontal portion 26, and the terminal pin 23 is bent downward from the rear end of the horizontal portion 26.

Referring to fig. 5 to 12 in combination with fig. 2 and 3, the electrical connector 100 further has an insulating member 3 assembled forward into the insulating body 1, and at least one pair of bent portions 24 of each signal terminal 2 is embedded and formed in the insulating member 3.

Specifically, in the present embodiment, the insulating member 3 includes a first insulating member 31 and a second insulating member 32 assembled with each other, two rows of signal terminals 2 are respectively insert-molded in the first and second

insulating members

31, 32 to form a first terminal assembly and a second terminal assembly, the first terminal assembly and the second terminal assembly are assembled and then are mounted in the insulating body 1 together forward, at this time, the top wall 142 of the extension portion 14 covers the insulating member 3 on the upper side thereof, the insulating member 3 extends backward not to exceed the rear end surface of the top wall 142, and the extension wall 141 of the extension portion 14 covers the insulating member 3 at least partially on both sides in the transverse direction.

In other embodiments of the present invention, the insulating member 3 may also be a one-piece structure, that is, two rows of signal terminals 2 are embedded and molded in the insulating member 3 together to form a terminal assembly; in other embodiments, the insulating member 3 may also include first and second insulating

members

31 and 32 and a third insulating member injection-molded to the first and second terminal assemblies to connect the first and second terminal assemblies together.

At least one of the first insulating member 31 and the second insulating member 32 is provided with a first fastening portion 301 fastened to the insulating body 1, two sides of the first insulating member 31 and/or the second insulating member 32 in the transverse direction are provided with a pair of fastening arms 302, each fastening arm 302 extends forward to enable the front end to be a free end and the rear end to be a fixed end, and the first fastening portion 301 is arranged at the free end.

Referring to fig. 2 to 4, the insulating body 1 has a pair of receiving slots 15 disposed oppositely and a second locking portion 151 disposed in the corresponding receiving slot 15 to be locked with the first locking portion 301.

The insulating body 1 further has a pair of guide grooves 16 oppositely arranged in the transverse direction, and the first insulating member 31 and/or the second insulating member 32 further has a pair of guide portions 303 at both sides in the transverse direction thereof to be inserted into the corresponding guide grooves 16. The guiding groove 16 and the receiving groove 15 are both recessed on the inner surfaces of the pair of extending walls 141, the guiding groove 16 is located below the receiving groove 15, the receiving groove 15 and the guiding groove 16 both extend from the rear end surfaces of the extending walls 141 to the front, and the length of the receiving groove 15 extending forward is greater than that of the guiding groove 16, further, in this embodiment, the receiving groove 15 extends forward and penetrates the extending walls 141, and the guiding groove 16 extends forward without penetrating the extending walls 141.

The insulating body 1 further has a step portion 171 protruding toward the inside of the terminal groove 13 and a supporting wall 18 located at the bottom thereof, the step portion 171 abuts against the front section of the holding portion 22 of the first signal terminal 2a at the outside of the first signal terminal 2a to provide sufficient supporting force to the front section of the holding portion 22 of the first signal terminal 2a, the rear section of the holding portion 22 is covered in the insulating member 3, and the supporting wall 18 is received at the lower side of the insulating member 3.

In addition, the insulating main body 1 further has a protruding portion 172 protruding toward the inner side of the terminal groove 13, and the protruding portion 172 is located at the outer side of the second signal terminal 2b and abuts against the front section of the holding portion 22 thereof to provide a sufficient supporting force.

Further, the first insulating member 31 and the second insulating member 32 are stacked in the height direction, and the first insulating member 31 and the second insulating member 32 have matching structures which are matched with each other, the matching structures are a convex post 3112 and a mounting groove 3212 which are matched with each other, in the embodiment shown in the present invention, a pair of convex posts 3112 are protruded downwards at the lower side of the first insulating member 31, and a pair of mounting grooves 3212 are opened at the upper side of the second insulating member 32 for the corresponding convex posts 3112 to be inserted downwards and fixed.

In addition, in the illustrated embodiment of the present invention, the first insulating member 31 is disposed on the upper side of the second insulating member 32, the first insulating member 31 is provided with a pair of the latching arms 302 located on both sides thereof and a first latching portion 301 located at the free end of the corresponding latching arm 302, and the second insulating member 32 is provided with a pair of the guiding portions 303 located on both sides thereof. In other embodiments, the second insulating member 32 may be located on the upper side, and the first insulating member 31 may be located on the lower side.

Meanwhile, at least one of the first insulating member 31 and the second insulating member 32 is provided with a positioning block 304 protruding forward to be inserted into the corresponding terminal groove 13. In the present embodiment, each positioning block 304 is a plate-shaped structure extending in the front-back direction and the height direction.

Further, in the preferred embodiment of the present invention, the first and second insulating

members

31, 32 are provided with at least one positioning block 304, and the positioning blocks 304 on the first and second

insulating members

31, 32 are disposed in a staggered manner along the transverse direction. In the illustrated embodiment of the present invention, the first and second insulating

members

31, 32 are provided with three positioning blocks 304, and after the first insulating member 31 and the second insulating member 32 are assembled with each other, the positioning blocks 304 on the first insulating member 31 and the positioning blocks 304 on the second insulating member 32 are alternately arranged in the transverse direction.

The first and second insulating

members

31 and 32 further have grooves 305 disposed on the outer surfaces thereof for receiving the non-broken terminal material strips, and the upper one of the first and second insulating

members

31 and 32 further has positioning holes 306 formed therethrough along the height direction to partially expose the horizontal portion 26.

In addition, in this embodiment, the second insulating member 32 is provided with the pair of guiding portions 303, the first insulating member 31 further has a pair of fixing portions 307 aligned with the corresponding guiding portions 303 in the front-back direction, the fixing portions 307 are located behind the corresponding guiding portions 303, and the guiding portions 303 and the fixing portions 307 are inserted into and retained in the corresponding guiding grooves 16 in sequence.

Further, in this embodiment, the first insulating member 31 is provided with a first base 311, a first tongue 312 formed by protruding forward from a bottom of a front surface of the first base 311, a first connection portion 313 formed by extending obliquely upward and backward from the first base 311, and a first extending portion 314 formed by extending backward from a top end of the first connection portion 313, and the positioning block 304 on the first insulating member 31 is protruded from a lower surface of the first tongue 312.

The pair of snap arms 302 are disposed on two sides of the first extending portion 314 in the transverse direction, in this embodiment, the first extending portion 314 is thin at the front and thick at the rear, an upper surface of the rear portion of the first extending portion 314 is lower than an upper surface of the front portion of the first extending portion 314, and a lower surface of the rear portion of the first extending portion 314 is lower than a lower surface of the front portion of the first extending portion 314.

The pair of snap arms 302 are disposed at two sides of the front portion of the first extending portion 314, and the terminal pins 23 of the upper row of signal terminals 2 extend downward and protrude from the lower side of the rear portion of the first extending portion 314. The positioning hole 306 is disposed in front of the first extending portion 314, and penetrates the first extending portion 314 along the height direction, and the groove 305 on the first insulating member 31 is disposed in the rear of the first extending portion 314.

The second insulating member 32 has a second base 321, a second tongue 322 protruding forward from the bottom of the front surface of the second base 321, a second connecting portion 323 extending rearward and upward from the second base 321, and a second extending portion 324 extending rearward from the top of the second connecting portion 323, wherein the positioning block 304 of the second insulating member 32 is protruded from the upper surface of the second tongue 322.

The terminal pins 23 of the lower signal terminals 2 extend downward and protrude from the lower side of the second extending portion 324. When the first insulator 31 is assembled on the second insulator 32, the second extending portion 324 is located below the front portion of the first extending portion 314 and located in front of the rear portion of the first extending portion 314.

Further, each guide part 303 has a guide segment 3031 at the front part and a combining segment 3032 at the rear part, the maximum height of the guide segment 3031 is not more than the minimum height of the combining segment 3032, and the orthographic projection of the guide segment 3031 on the vertical plane parallel to the front end surface of the insulating body 1 is positioned inside the orthographic projection of the combining segment 3032 on the vertical plane. The front side of the guiding segment 3031 is provided with a pair of guiding surfaces 3030 extending obliquely, and the combining segment 3032 does not extend upwards beyond the top surface of the second extending part 324.

The groove 305 of the second insulating member 32 is opened at the bottom of the second base 321, and the groove 305 is opened downward and to the rear side, so that the terminal strip connected to the signal terminals 2 in the lower row is broken off after the embedding and forming are completed, and thus before the terminal strip is assembled to the insulating body 1, the terminal strip is broken off in advance, and then the first and second terminal assemblies are assembled with each other.

In this embodiment, the mounting groove 3212 is concavely formed on the second base 321 of the second insulating member 32, the protruding pillar 3112 is formed by protruding downward from the bottom of the first base 311, and a plurality of ribs 3113 are protrusively formed on the outer circumferential surface of the protruding pillar 3112.

In addition, the insulating body 1 is provided with a pair of retaining walls 19 located inside the corresponding terminal grooves 13, and the front end of the contact portion 21 of each first signal terminal 2a extends forward to form a head 27 abutting against the corresponding retaining wall 19. In this embodiment, the front end of the contact portion of the second signal terminal 2b also has a head portion 27 which is stopped by the stopper wall 19.

In this embodiment, the pair of retaining walls 19 are opposite and spaced apart from each other along the height direction, each retaining wall 19 extends along the horizontal direction and covers the inner side of the corresponding row of terminal grooves 13, the retaining wall 19 is provided with a plurality of through grooves 191 penetrating the retaining wall along the height direction for the signal terminals 2 to extend into, and the through grooves 191 are communicated with the corresponding terminal grooves 13 to allow the contact portions 21 of the corresponding signal terminals 2 to pass through and protrude into the through grooves 191.

In addition, in the present embodiment, the electrical connector 100 further has a plurality of power terminal pairs 4 fixed in the corresponding terminal grooves 13, and the power terminal pairs 4 are located on one side of the signal terminals 2 in the transverse direction.

When the insulating element 3 is assembled into the insulating body 1 from the rear to the front, the positioning block 304 is inserted into the corresponding terminal groove 13, the guiding portion 303 and the fixing portion 307 are sequentially inserted into and limited by the corresponding guiding groove 16, and the latching arm 302 extends into the accommodating groove 15 to the front until the first latching portion 301 disposed at the front end thereof crosses over the second latching portion 151 and is latched therewith. The second tongue portion 322 and the front portion of the second base 321 are located on the upper side of the supporting wall 18 and are carried by the supporting wall 18, so as to provide a supporting force to the insulating member 3 at the front portion thereof, thereby improving the stability of the first and second terminal assemblies in the insulating body 1.

In the utility model, at least one pair of bending parts 24 are arranged between the fixing part 22 and the terminal pin 23 of each signal terminal 2 in the electric connector 100 at intervals along the height direction, and the at least one pair of bending parts 24 are embedded and formed in the insulating part 3 of the electric connector 100, so that the signal terminal 2 is bent before being arranged in the insulating body 1, and the bending length and the bending angle are easy to control; and the rear cover for fixing the signal terminal in the traditional electric connector is not required to be assembled, so that the signal terminal 2 is prevented from being damaged by pressure in the subsequent assembly process, and the voltage-resistant capability between two adjacent signal terminals 2 can be ensured.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electrical connector comprising an insulative housing and a plurality of signal terminals, the insulative housing having a base, a mating portion extending forwardly from the base and a plurality of terminal slots extending in a front-to-rear direction, the signal terminals being secured to the respective terminal slots of the insulative housing, the signal terminals being divided into two rows spaced apart in a height direction, each signal terminal having a contact portion located at a front side thereof and received in the mating portion, a retention portion secured in the insulative housing, and a terminal pin located at a rear side thereof, the electrical connector comprising: the contact parts of any two adjacent signal terminals in each row of signal terminals are staggered along the front-back direction, at least one pair of bending parts arranged at intervals along the height direction are arranged between the fixing part of each signal terminal and the terminal pin, the electric connector is further provided with an insulating piece assembled into the insulating body forwards, and the at least one pair of bending parts of the signal terminals are embedded and molded in the insulating piece.

2. The electrical connector of claim 1, wherein: the insulating part comprises a first insulating part and a second insulating part which are assembled with each other, two rows of signal terminals are respectively embedded and molded in the first insulating part and the second insulating part to form a first terminal assembly and a second terminal assembly, and the first terminal assembly and the second terminal assembly are assembled and then are arranged in the insulating body forwards together.

3. The electrical connector of claim 2, wherein: at least one of the first insulating piece and the second insulating piece is provided with a first buckling part buckled with the insulating body, two sides of the first insulating piece and/or the second insulating piece in the transverse direction are provided with a pair of buckling arms, each buckling arm extends forwards to enable the front end of the buckling arm to be a free end, the first buckling part is arranged at the free end, and the insulating body is provided with a pair of opposite accommodating grooves and a second buckling part arranged in the corresponding accommodating groove and buckled with the first buckling part.

4. The electrical connector of claim 3, wherein: the insulating body further has a pair of guide grooves oppositely arranged in the transverse direction, and the first insulating member and/or the second insulating member further has a pair of guide portions at both sides in the transverse direction thereof to be inserted into the corresponding guide grooves.

5. The electrical connector of claim 2, wherein: the first insulating piece and the second insulating piece are stacked in the height direction, and at least one of the first insulating piece and the second insulating piece is provided with a positioning block which protrudes forwards to be inserted into the corresponding terminal groove.

6. The electrical connector of claim 5, wherein: the first insulating part and the second insulating part are respectively provided with at least one positioning block, and the positioning blocks on the first insulating part and the second insulating part are arranged along the transverse direction in a staggered mode.

7. The electrical connector of claim 1, wherein: the signal terminal that the contact site is located the front side among every row of signal terminal is first signal terminal, the signal terminal that the contact site is located the rear side is the second signal terminal, insulator is equipped with and is located the inboard a pair of barricade of terminal groove, each the contact site front end of first signal terminal extends forward and is formed with the head with corresponding barricade looks butt.

8. The electrical connector of claim 7, wherein: the insulating body is also provided with a step part protruding towards the inner side of the terminal groove and a supporting wall positioned at the bottom of the terminal groove, the step part abuts against the front section of the fixing part of the first signal terminal on the outer side of the first signal terminal, the rear section of the fixing part is covered in the insulating piece, and the supporting wall is connected with the lower side of the insulating piece.

9. The electrical connector of claim 2, wherein: the at least one pair of bending parts comprises a first bending part and a second bending part, the first bending part is bent upwards from the fixing part to form an inclined part, the second bending part is bent backwards from the top end of the inclined part to form a horizontal part, and the terminal pin is bent downwards from the rear end of the horizontal part.

10. The electrical connector of claim 9, wherein: the first insulating part and the second insulating part are also provided with grooves which are arranged on the outer surfaces of the first insulating part and the second insulating part respectively to accommodate the non-broken terminal material belts, and the upper side of the first insulating part and the second insulating part is also provided with a plurality of positioning holes which are formed in a penetrating way along the height direction to partially expose the horizontal part.