CN109390805B - electrical connector - Google Patents

Abstract

The invention provides an electrical connector, which has an insulating body, conductive terminals, cables, front covers and back covers. The insulating body has a main body, a mounting part, a receiving groove and a locking mechanism that locks with the docking connector. , the conductive terminals are assembled from back to front and stored in the corresponding receiving grooves. Each conductive terminal has a contact part and a wiring part located behind the contact part. The cable is inserted into the receiving groove and connected to the conductive terminal in the receiving groove. , the front cover is assembled on the front side of the insulating body from front to back and the conductive terminals are locked in the receiving slot. The back cover is assembled on the mounting part from back to front. The electrical connector also has the elasticity to be sleeved on the periphery of the insulating skin of the cable. The clamping piece is assembled from back to front into the installation space of the installation part and is covered by the back cover. At the same time, it is squeezed by the inner wall of the installation part and pressed against the outside of the insulation to avoid interference current from the installation space. forward inflow. The electrical connector of the invention has high safety performance.

Description

electrical connector

Technical field

The present invention relates to an electrical connector, and in particular, to an electrical connector with high safety performance.

Background technique

When a traditional electrical connector uses a locking device to lock and mate with a mating connector, its upper surface needs to reserve space for the locking mechanism of the mating connector. When the electrical connector is used in a vibrating environment, it usually needs to be limited. parts to strengthen the holding force between the conductive terminals and the insulating body. However, before the electrical connector is used in a high-voltage environment, it also needs to undergo strict high-voltage electrostatic testing to prevent the electrical connector from short-circuiting or damage to electronic components in a high-voltage environment. However, because traditional electrical connectors are connected to cables at the back end, interference current can easily flow from the gap at the back of the insulating body into the conductive terminals at the front, causing a short circuit.

In view of this, it is necessary to improve existing electrical connectors to solve the above problems.

Contents of the invention

The object of the present invention is to provide an electrical connector with high safety performance.

In order to achieve the above object, the present invention provides an electrical connector, which includes an insulating body, a plurality of conductive terminals, a cable, a front cover and a back cover. The mounting part on the side of the connector, a number of receiving grooves that penetrate it in the docking direction, and a locking mechanism located on the upper side thereof to lock with the mating connector. The conductive terminals are assembled from back to front and stored in the corresponding receiving grooves. , and includes at least one row arranged in the transverse direction, each of the conductive terminals has a contact portion in contact with the mating terminal and a wiring portion located behind the contact portion, and the cable is inserted into the receiving groove and The front cover is mechanically and electrically connected to the corresponding conductive terminals in the receiving slot. The front cover is assembled on the front side of the insulating body from front to back and the conductive terminals are locked in the corresponding receiving slot. The rear cover is automatically The electrical connector is assembled into the mounting part from back to front. The electrical connector also has an elastic clamping member that is sleeved around the insulating sheath of the cable. The clamping member is assembled into the mounting part from back to front. It is in the installation space and covered by the back cover, and is squeezed by the inner wall surface of the installation part and pressed against the outside of the insulation skin to prevent interference current from flowing forward from the installation space.

As a further improvement of the present invention, the clamping member has a plurality of through holes penetrating it along the docking direction and a plurality of concave holes evenly distributed on its front and rear surfaces without penetrating.

As a further improvement of the present invention, after the clamping member is installed in the installation space, the conductive terminal is connected to the cable and inserted from back to front through the through hole until the conductive terminal is locked in place. inside the insulating body.

As a further improvement of the present invention, the insulating body also has a frame portion protrudingly formed on the periphery of the main body portion, the frame portion is located at the rear end of the main body portion, and a protruding frame portion is formed on the top wall of the main body portion. A plurality of convex strips are formed, and the upward protruding height of the frame part is greater than the upward protruding height of the convex strips.

As a further improvement of the present invention, the main body part has a top wall and a bottom wall arranged oppositely and a pair of side walls connecting the top wall and the bottom wall. The top wall and the bottom wall extend forward beyond the conductive terminal. The front end surface forms a front end wall protruding from the front side of the conductive terminal. The top wall and the bottom wall completely cover the conductive terminal therebetween so that it will not be exposed outward along the height direction. The front cover is covered by The inside of the front end wall.

As a further improvement of the present invention, the front cover has a base body and a pair of buckle arms arranged oppositely on both sides of the base body, and the base body has a through slot corresponding to the receiving slot for insertion of the docking component. , the buckle arms are placed on both sides of the base body in the transverse direction, and snap with the buckle portions formed on the corresponding side walls.

As a further improvement of the present invention, each buckle arm is provided with a pair of connecting portions connected to the base body and spaced apart from each other, and an end portion connecting the ends of the connecting portions, and the end portion is provided with a connecting portion extending from the base body. The inner wall is recessed outward to form a buckling groove to engage with the corresponding buckling portion.

As a further improvement of the present invention, each of the buckle arms also has a pair of protruding ribs extending outward in the height direction from the corresponding connecting portion, and the protruding ribs extend into the limiting groove of the corresponding side wall, and in In the direction from front to back, the outer surface of the rib gradually moves closer to the inner surface thereof.

As a further improvement of the present invention, the back cover has an installation groove that penetrates it in the front and rear direction, the installation groove has a guide groove located on one side of the back cover in the transverse direction, and the back cover is assembled to the insulation from back to front. Behind the rear side of the body, the conductive terminal enters the guide groove in a predetermined direction, and then is loaded from back to front and passed through the corresponding installation groove to insert the clamping member.

As a further improvement of the present invention, the insulating body also has a pair of protective parts protruding from its top wall, and the locking mechanism is sandwiched between the pair of protective parts, and in the height direction, the The top surface of the protective part is higher than the top surface of the pressing part of the locking mechanism.

Beneficial effects of the present invention: The electrical connector of the present invention is provided with elastic clamping parts around the insulating sheath of the cable. The clamping parts are assembled from back to front into the installation space of the insulating body and are covered by the back cover. Covered, and at the same time, it is squeezed by the inner wall surface of the installation part and pressed against the outside of the insulation skin to prevent interference current from flowing forward from the installation space and prevent short circuits and component damage caused by static electricity flashing to conductive terminals. , and thus has higher safety performance.

Description of the drawings

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

FIG. 2 is another view of the electrical connector shown in FIG. 1 .

FIG. 3 is a partially exploded view of the electrical connector shown in FIG. 1 .

FIG. 4 is an exploded perspective view of the electrical connector shown in FIG. 2 .

FIG. 5 is a partial assembly view of the electrical connector shown in FIG. 4 with the conductive terminals and cables removed.

FIG. 6 is an exploded perspective view of the electrical connector shown in FIG. 5 .

FIG. 7 is a side view of the front cover of the electrical connector shown in FIG. 3 .

FIG. 8 is a perspective view of the clamping member of the electrical connector shown in FIG. 3 .

FIG. 9 is a step cross-sectional view along line A-A in FIG. 8 .

FIG. 10 is a schematic diagram of conductive terminals in the electrical connector shown in FIG. 1 .

FIG. 11 is a front view of the electrical connector shown in FIG. 1 .

FIG. 12 is a side view of the electrical connector shown in FIG. 1 without assembled conductive terminals and cables.

FIG. 13 is a schematic cross-sectional view of the electrical connector shown in FIG. 1 along line B-B.

FIG. 14 is a schematic cross-sectional view along line C-C in FIG. 1 .

FIG. 15 is a schematic diagram of the electrical connector shown in FIG. 1 and the mating connector when they are plugged together.

Detailed ways

The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, this embodiment does not limit the present invention. Structural, method, or functional changes made by those of ordinary skill in the art based on this embodiment are all included in the protection scope of the present invention.

Please refer to FIGS. 1 to 15 , which show a preferred embodiment of the electrical connector 100 of the present invention. The electrical connector 100 includes an insulating body 1 , a plurality of conductive terminals 2 , a cable 3 , a front cover 4 , and a back cover 5 and an elastic clamping member 6 placed around the insulating sheath 31 of the cable 3 . For ease of explanation, the following description will take the mating end of the electrical connector 100 as the front end and the terminal end as the rear end. That is, the front-to-back direction is the mating direction of the electrical connector 100 and the mating connector 200. At the same time, the definitions are as follows: One direction perpendicular to the front-to-back direction is the lateral direction, and the other direction perpendicular to the front-to-back direction is the height direction. In this embodiment, the size of the insulating body 1 in the lateral direction is larger than that in the height direction and the front-to-back direction. size.

Please refer to Figures 1 to 6 in combination with Figures 11 to 14. In the present invention, the insulating body 1 has a main body portion 11 located on its front side, a mounting portion 12 located on its rear side, and a plurality of mounting portions 12 located on the rear side. The receiving groove 13 penetrates the receiving groove 13 and the locking mechanism 14 located on the upper side thereof to lock with the docking connector. In this embodiment, the insulative body 1 has a row of receiving slots 13 , and the row of receiving slots 13 is arranged along the transverse direction.

The main body 11 includes a top wall 111, a bottom wall 112 and a pair of side walls 113 connecting the top wall 111 and the bottom wall 112. The top wall 111 and the bottom wall 112 are arranged oppositely in the height direction. The wall 111 and the bottom wall 112 extend forward beyond the front end surface 210 of the conductive terminal 2 to form a front end wall 114 protruding from the front side of the conductive terminal 2. The top wall 111 and the bottom wall 112 complete the conductive terminal 2. Covered therebetween so that it will not be exposed outward along the height direction, and at the same time, the front cover 4 on the front side of the conductive terminal 2 is blocked by its front end wall 114, which can also increase the creepage distance of static electricity around the conductive terminal 2 and reduce interference. Effect of current. In this way, no opening structure is provided on the top wall 111 and the bottom wall 112 of the main body 11 to prevent flashover.

The upper side of the top wall 111 is formed with a plurality of upwardly protruding convex strips 1112, and the lower side thereof is provided with an upwardly recessed coupling groove 1113. In this embodiment, the coupling groove 1113 is in contact with the lateral direction. The locking mechanisms 14 are arranged in alignment.

The main body 11 also has a plurality of elastic walls 115 arranged in one-to-one correspondence with the receiving grooves 13. The elastic walls 115 are located in the corresponding receiving grooves 13. In this embodiment, the elastic walls 115 are arranged along the front and rear directions. Extending and covering the lower side of the corresponding receiving groove 13 , the elastic wall 115 has a stop portion 1151 protruding toward the inside of the receiving groove 13 and a tongue protruding forward from the front side of the corresponding stop portion 1151 1152, the front end of the tongue 1152 is the free end of the elastic wall 115. In other embodiments of the present invention, the elastic wall 115 can also be disposed on the upper side of the corresponding receiving groove 13 .

The pair of side walls 113 are located on both sides of the insulating body 1 in the lateral direction. Each of the side walls 113 is formed with a limiting groove 1131 that is recessed inward from its outer surface. The buckle portion 1132 in the position groove 1131 and the operating area 1133 located on the rear side of the limiting groove 1131. The operating area 1133 is also recessed inward from the outer surface of the corresponding side wall 113 and is in contact with the limiting groove 1131. Connected. Furthermore, the limiting groove 1131 and the operating area 1133 are both opened outward along the transverse direction.

At the same time, each side wall 113 also has a pair of positioning grooves 1134 connected with the limiting grooves 1131 provided thereon. The pair of positioning grooves 1134 are located at two sides of the limiting groove 1131 along the height direction. side. Each side wall 113 also has a blocking wall 1135 located inside the positioning groove 1134. None of the positioning groove 1134, the limiting groove 1131 and the operating area 1133 penetrate the blocking wall 1135 inwardly, and the The positioning groove 1134 and the limiting groove 1131 are recessed inward to correspond to the outer surface of the blocking wall 1135 .

In this embodiment, each of the side walls 113 has a pair of limiting walls 1136 arranged oppositely in the height direction. The pair of limiting walls 1136 are located outside the positioning groove 1134 and are spaced apart to form the limiting walls. slot1131.

The installation part 12 is hollow and has an installation space 120 open to the rear. A plurality of positioning protrusions 121 are provided on the outer surface of the installation part 12. In this embodiment, the positioning protrusions 121 are provided on The top and bottom surfaces of the mounting portion 12 are exposed to the outside. In addition, the mounting portion 12 also has protrusions 122 protruding from its top surface. In this embodiment, the protrusions 122 are a pair for description, but their number is not limited thereto. Each of the protrusions 122 extends in the front-to-back direction. In the transverse direction, a pair of the protrusions 122 are spaced apart and located between a pair of the positioning protrusions 121 .

The insulating body 1 also has a frame portion 15 protrudingly formed on the periphery of the main body portion 11 . The frame portion 15 is located at the rear end of the main body portion 11 . The frame portion 15 protrudes upward to a height of It is greater than the upward protruding height of the convex strip 1112, thereby increasing the flashover distance.

Further, as shown in FIGS. 11 to 13 , the frame portion 15 extends outward beyond the outer peripheral surface of the main body portion 11 in both the height direction and the transverse direction. That is, the main body portion 11 vertically The projection on the straight surface completely falls into the projection of the frame part 15 on the vertical surface. In addition, in the height and transverse directions, the frame portion 15 extends outward beyond the outer peripheral surface of the mounting portion 12 , that is, the projection of the mounting portion 12 on the vertical plane completely falls into the The frame part 15 is inside the projection on the vertical plane.

In addition, the insulative body 1 also has a pair of protective portions 16 protruding from its top wall. In the lateral direction, the locking mechanism 14 is sandwiched between the pair of protective portions 16 and in height. direction, the top surface of the protective portion 16 is higher than the top surface of the pressing portion 141 of the locking mechanism 14 , thereby effectively protecting the pressing portion 141 and preventing improper pressure on the pressing portion 141 by external forces.

In this embodiment, the protective portion 16 is provided on the mounting portion 12 and is connected to the rear end surface of the frame portion 15 . Further, when viewed from the back to the front, the protective portion 16 is in the shape of a herringbone, which is a symmetrical structure and has a straight section 161 located on its upper side and a pair of inclined sections extending from the bottom end of the straight section 161 . Segments 162, the pair of inclined segments 162 extend in opposite directions and are arranged symmetrically. In the transverse direction, the protrusion 122 is located directly below the straight section 161 .

Referring to FIGS. 3 to 4 in combination with FIGS. 10 and 13 , the conductive terminals 2 are assembled from back to front and received in the corresponding receiving slots 13 , and include at least one row arranged in the transverse direction, each of which is The conductive terminal 2 has a contact portion 21 that is in contact with a mating terminal (not labeled) and a wiring portion 22 located behind the contact portion 21 for connecting to the cable 3 .

In this embodiment, the contact portion 21 has a frame-shaped structure as a whole, and a blocking surface 23 matching the insulating body 1 is formed on one side of the contact portion 21 in the height direction. Furthermore, in this embodiment, , a slot 211 open downward is formed on the lower side of the contact portion 21 , and the blocking surface 23 is the front wall surface of the slot 211 . A sheet-shaped guide part 212 protrudes from the lower side of the contact part 21. The guide part 212 is placed vertically and extends in the front-rear direction. The guide part 212 and the blocking surface 23 jointly define the Two adjacent walls of the slot 211. When the conductive terminal 2 is inserted into the corresponding receiving groove 13 , the stopper 1151 of the insulative body 1 presses forward against the blocking surface 23 of the conductive terminal 2 to prevent it from retreating.

Referring to FIGS. 1 to 7 in conjunction with FIGS. 12 to 14 , the front cover 4 has a base 41 and a pair of buckle arms 42 disposed oppositely on both sides of the base 41 . The base 41 has a The receiving grooves 13 are provided with through-slots 411 for insertion of docking components (not shown) in one-to-one correspondence. The buckling arms 42 are located on both sides of the base body 41 in the transverse direction and are connected to the corresponding side walls 113 The buckle portions 1132 formed on the two sides engage with each other.

Each buckle arm 42 is provided with a pair of connecting portions 421 connected to the base body 41 and spaced apart from each other, and an end portion 422 connecting the ends of the connecting portions 421 . The end portions 422 are provided with an inner wall thereof. A buckling groove 4221 is formed outwardly to engage with the corresponding buckling portion 1132 .

Each buckle arm 42 also has a pair of protruding ribs 423 extending outward from the corresponding connecting portion 421 in the height direction. The protruding ribs 423 extend into the limiting groove 1131 of the corresponding side wall 113 to prevent the The buckle arm 42 is excessively expanded under the action of improper external force. As shown in FIG. 7 , in the direction from front to back, the outer surface 4231 of the rib 423 gradually moves closer to the inner surface 4232 thereof, so that the rear section of the buckle arm 42 can open outward at a certain angle. , in this embodiment, the inner surface 4232 is a vertical surface parallel to the front-to-back direction.

The upper surface of the front cover 4 protrudes to form a coupling portion 43. In this embodiment, the coupling portion 43 is located in the middle of the front cover 4 in the transverse direction. When the front cover 4 is assembled on the insulation When the body 1 is on the front side, the coupling portion 43 is received and positioned in the coupling groove 1113 .

The front cover 4 also has a plurality of protrusions 44 protruding from the front side of the base 41. The protrusions 44 are divided into two rows arranged side by side in the height direction. The protrusions 44 in each row are arranged in the transverse direction and are spaced apart. set up. Further, the protruding portion 44 and the through groove 411 are arranged in one-to-one correspondence.

When the front cover 4 is assembled on the front side of the insulating body 1 , the protruding portion 44 extends into the corresponding receiving groove 13 , and the buckling groove 4221 is in contact with the buckling portion 1132 on the outside of the insulating body 1 . When engaged, the protruding portion 44 presses the corresponding tongue portion 1152 on the lower side, so that the corresponding stop portion 1151 moves toward the inside of the receiving groove 13 and increases the contact depth with the blocking surface 23 . In this embodiment, , that is, the tongue portion 1152 moves upward under the extrusion of the protruding portion 44, causing the stop portion 1151 to move upward, thereby preventing the blocking surface 23 from sliding out from the top of the stop portion 1151, so that The lock between the two is deeper to avoid loosening.

When it is necessary to unlock the front cover 4 , it is only necessary to apply force on the end portion 422 in the operating area 1133 to slightly open the buckle arm 422 outward, so that the buckle portion 1132 can be released from its position. The snap groove 4221 slides out.

Referring to FIGS. 1 to 6 in conjunction with FIGS. 12 to 14 , the back cover 5 has a mounting groove 51 that penetrates it in the front-to-back direction and a receiving cavity 50 that is open forward. The mounting groove 51 has a There is a guide groove 511 on one side of the installation groove 51 in the transverse direction. The guide groove 511 is located on one side of the installation groove 51 in the transverse direction, and its size in the height direction is larger than the size of its side parts, so So that the conductive terminal 1 has a certain directionality when installed in the back cover 5 . During assembly, after the back cover 5 is assembled to the mounting portion 12 on the rear side of the insulating body 1 from back to front, the conductive terminal 2 enters the guide groove 511 in a predetermined direction, so that the guide portion 212 is inserted into the Slide forward in and along the guide groove 511, so that the conductive terminal 2 as a whole is inserted from back to front and passes through the corresponding installation groove 51, so as to be further inserted forward and passed through the clamping member Perforations on 61.

The top of the back cover 5 is provided with a notch 52 in the middle and a receiving portion 53 protruding from it. The receiving portions 53 are located on both sides of the notch 52 in the lateral direction. The accommodating portion 53 has an accommodating space 530 open forward and downward to accommodate the protrusion 122 provided on the top of the insulating body 1 .

In addition, the top wall and the bottom wall of the back cover 5 respectively have a pair of latching grooves 54 connected with the receiving cavity 50 . In the lateral direction, the latching grooves 54 are located outside the accommodating portion 53 , that is, the receiving portion 53 is disposed closer to the missing portion 52 than the locking groove 54 .

Referring to Figures 3 to 4, 6, 8 to 9 and 13 to 14, the clamping member 6 has a number of through holes 61 penetrating it in the docking direction and evenly distributed on its front and rear. There are several recessed holes 62 on the surface and not disposed through. Corresponding to the conductive terminals 2 , the through holes 61 have at least one row arranged in the transverse direction.

In this embodiment, the clamping member 6 has two rows of perforations 61 as an example. Several of the perforations 61 in each row are arranged in the transverse direction and are spaced apart. The two rows of the perforations 61 are spaced apart in the height direction. The clamping member 6 has three rows of concave holes 62 spaced apart along the height direction. The concave holes 62 in each row are spaced apart along the transverse direction, and between two adjacent rows of concave holes 62 The sandwich is provided with a row of said perforations 61 .

The back cover 5 also has at least one positioning post 55 protruding forward in its receiving cavity 50, and the positioning post 55 is inserted forward into the corresponding recessed hole 62 provided on the rear surface of the clamping member 6 ( As shown in Figure 14), to achieve the relative positioning between the clamping member 6 and the back cover 5. In the lateral direction, the positioning posts 55 are located outside the installation groove 51. In this embodiment, there are a pair of positioning posts 55, which are located on both sides of the installation groove 51 in the lateral direction. .

Furthermore, at least one ring of convex ribs 63 is protrudingly formed on the outer peripheral surface of the clamping member 6. In this embodiment, the clamping member 6 has a plurality of the convex ribs 63 spaced apart along the front and rear directions. . In a preferred embodiment of the present invention, the clamping member 6 is made of rubber material to have good elastic deformation ability.

The clamping member 6 also has a plurality of inner protrusions 64 protruding in opposite directions corresponding to the ribs 63. The inner protrusions 64 are located in the inner protrusions toward the through hole 61. Each of the inner protrusions 64 protrudes toward the inside of the through hole 61. Each of the through holes 61 is provided with at least one circle of the inner protrusions 64 .

During assembly, the clamping member 6 is assembled into the installation space 120 of the installation part 12 from back to front, the back cover 5 is assembled into the installation part 12 from back to front, and the back cover 5 is The rear of the clamping member 6 covers the clamping member 6 , the protrusion 122 is inserted into and positioned in the corresponding receiving portion 53 , and the positioning protrusion 121 is buckled and positioned in the locking groove 54 Inside.

The cable 3 is inserted into the receiving groove 13 and is mechanically and electrically connected to the corresponding conductive terminal 2 in the receiving groove 13. The clamping member 6 is squeezed and pressed by the inner wall surface of the mounting part 12. Outside the insulating skin 31 , a good sealing effect is formed on the rear side of the insulating body 1 to prevent interference current from flowing forward from the installation space 120 , thereby preventing high-voltage static electricity from flashing to the conductive terminals 2 located on the front side.

The front cover 4 is assembled on the front side of the insulating body 1 from front to back and locks the conductive terminals 2 in the corresponding receiving grooves 13. In the height direction and the front and rear direction, the front cover 4 is covered by The inner side of the front end wall 114 .

After the clamping member 6 is installed in the installation space 120 , the conductive terminal 2 is connected to the cable 3 and inserted from back to front through the through hole 61 until the conductive terminal 2 is locked in the inside the insulating body 1. Since the clamping member 6 is provided with a plurality of non-penetrating recessed holes 62, the clamping member 6 has strong elastic deformation capability while maintaining its overall structural strength, which is beneficial to the conductive terminal. 2 insertion.

The electrical connector 100 of the present invention provides an elastic clamping member 6 around the insulating sheath 31 of the cable 3. The clamping member 6 is assembled into the installation space 120 of the installation portion 12 from back to front and is The back cover 5 is covered, and at the same time is squeezed by the inner wall surface of the installation part 12 and pressed against the outside of the insulation skin 31 to prevent interference current from flowing forward from the installation space 120, which is effective especially in high-voltage environments. It prevents short circuits and component damage caused by static electricity flashing to conductive terminals, thus providing high safety performance.

The above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently substituted. without departing from the spirit and scope of the technical solution of the present invention.

Claims (10)

1. An electrical connector, which includes an insulating body, a plurality of conductive terminals, cables, a front cover and a back cover. The insulating body has a main body portion located on its front side, a mounting portion located on its rear side, and several butt joints along the The receiving groove that penetrates it in the direction and the locking mechanism located on its upper side to lock with the mating connector. The conductive terminals are assembled from back to front and received in the corresponding receiving groove, and include In at least one row, each of the conductive terminals has a contact portion in contact with the mating terminal and a wiring portion located behind the contact portion. The cable is inserted into the receiving groove and connected with the corresponding conductive terminal in the receiving groove. The terminals are mechanically and electrically connected. The front cover is assembled on the front side of the insulating body from front to back and the conductive terminals are locked in the corresponding receiving slots. The back cover is assembled on the installation from back to front. part, which is characterized in that: the electrical connector also has an elastic clamping piece that is sleeved around the insulating sheath of the cable, and the clamping piece is assembled into the installation space of the installation part from back to front; It is covered by the back cover, and is squeezed by the inner wall surface of the installation part and pressed against the outside of the insulation skin to prevent interference current from flowing forward from the installation space. 2. The electrical connector according to claim 1, wherein the clamping member has a plurality of through holes penetrating it along the mating direction and a plurality of recesses evenly distributed on its front and rear surfaces without being penetrated. hole. 3. The electrical connector according to claim 2, characterized in that: after the clamping member is installed in the installation space, the conductive terminal is connected to the cable and inserted from back to front and passes through all the cables. The holes are drilled until the conductive terminals are stuck in the insulating body. 4. The electrical connector according to claim 1, wherein the insulating body further has a frame portion protrudingly formed on the periphery of the main body portion, and the frame portion is located at the rear end of the main body portion, A number of convex strips are protrudingly formed on the top wall of the main body part, and the upward protruding height of the frame part is greater than the upward protruding height of the convex strips. 5. The electrical connector of claim 1, wherein the main body has a top wall and a bottom wall that are oppositely arranged and a pair of side walls connecting the top wall and the bottom wall, and the top wall and the bottom wall are connected to each other. The wall extends forward beyond the front end surface of the conductive terminal to form a front end wall protruding from the front side of the conductive terminal. The top wall and the bottom wall completely cover the conductive terminal therebetween so that it will not move along the height direction. The front cover is exposed to the outside, and the front cover is covered on the inside of the front end wall. 6. The electrical connector according to claim 5, wherein the front cover has a base body and a pair of buckling arms arranged oppositely on both sides of the base body, and the base body has a base body corresponding to the receiving groove. Correspondingly provided with through slots for insertion of docking elements, the buckle arms are arranged on both sides of the base body in the transverse direction and engage with buckle portions formed on corresponding side walls. 7. The electrical connector of claim 6, wherein each latch arm is provided with a pair of connecting portions connected to the base body and spaced apart, and an end connecting the ends of the connecting portions. part, and the end part is provided with a buckling groove that is recessed outward from its inner wall surface to engage with the corresponding buckling part. 8. The electrical connector of claim 7, wherein each latch arm further has a pair of protruding ribs extending outward in a height direction from the corresponding connecting portion, and the protruding ribs extend into the corresponding connecting portion. In the limiting groove of the side wall, and in the direction from front to back, the outer surface of the rib gradually moves closer to the inner surface thereof. 9. The electrical connector according to claim 1, wherein the back cover has an installation groove extending through it in the front-to-back direction, and the installation groove has a guide groove located on one side of the rear cover in the transverse direction, so After the back cover is assembled to the rear side of the insulating body from back to front, the conductive terminal enters the guide groove in a predetermined direction, and then is inserted into and passed through the corresponding installation groove from back to front to insert the clamping member . 10. The electrical connector of claim 1, wherein the insulating body further has a pair of protective parts protruding from its top wall, and the locking mechanism is sandwiched between the pair of protective parts. and in the height direction, the top surface of the protective part is higher than the top surface of the pressing part of the locking mechanism.