Electrical connector

Abstract

The utility model discloses an electric connector, include: conductive loss spare includes multiple first ground column and multiple second ground column, first ground column and second ground column respectively with outer shielding piece electricity coupling, along the up-down direction at least partial first ground column to multiple contact pin's distance is less than all second ground column to multiple contact pin's distance, define along the up-down direction at least partial first ground column's outer surface projection to the position of contact pin as first position, along the left and right direction first position to the distance of connecting material part as first distance D1, define along the up-down direction at least partial second ground column's outer surface projection to the position of contact pin as second position, along the left and right direction second position to the distance of connecting material part as second distance D2, D2D1, reach the improvement high frequency effect again without affecting connecting material part cutting material belt.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector that improves high-frequency performance. Background Technology

[0002] An existing electrical connector includes multiple conductive terminals, a shielding sheet, conductive plastic, and an insulating block injection-molded from the multiple conductive terminals and the shielding sheet. The conductive terminals include SMT pins that protrude from the insulating block in a left-right direction. The shielding sheet includes multiple through slots, and the insulating block includes multiple through holes corresponding to the multiple through slots. The conductive plastic passes through the multiple through slots and through holes in a left-right direction and protrudes from the insulating block. The portion of the conductive plastic passing through the multiple through holes is fixed to the insulating block. Since the SMT pins will connect to the material strip, the conductive plastic portion closer to the SMT pins among the multiple conductive plastic portions protruding from the insulating block in a left-right direction will interfere with the cutting of the material strip by the SMT pins. To solve the above problems, fisheye-type pins are often chosen for connection. The fisheye-type pins protrude downward from the bottom of the insulating block and are elastically inserted downward into the conductive holes of the circuit board.

[0003] Because the fisheye-type pins are inserted into the circuit board at different heights, the flatness is difficult to control; and because the fisheye-type pins are inserted into the circuit board with elasticity, the contact area is relatively small, which can easily lead to instability and loosening; and because the fisheye-type pins are located below the insulating block, the actual situation after insertion into the circuit board is not easy to see, and problems are easily overlooked.

[0004] Therefore, it is necessary to design a new electrical connector to overcome the above problems. Summary of the Invention

[0005] To address the problems encountered in the background technology, the purpose of this invention is to provide an electrical connector that is electrically coupled to an outer shielding component via a first grounding post and a second grounding post, wherein the distance from at least a portion of the first grounding post to multiple pins in the vertical direction is less than the distance from all the second grounding posts to multiple pins, a first position is defined as the projection of the outer surface of at least a portion of the first grounding post in the vertical direction onto the pins, a first distance D1 is defined as the distance from the first position in the horizontal direction to the connecting part, a second position is defined as the projection of the outer surface of at least a portion of the second grounding post in the vertical direction onto the pins, and a second distance D2 is defined as the distance from the second position in the horizontal direction to the connecting part, where D2 < D1, thereby improving the high-frequency performance without affecting the cutting of the material strip by the cutting tool.

[0006] To achieve the above objectives, the present invention employs the following technical means: An electrical connector, characterized in that it comprises: an insulating member; an outer shielding member covering the outside of the insulating member, the outer shielding member including a plurality of through holes; a plurality of conductive terminals fixed to the insulating member, each conductive terminal including a pin extending downward from the insulating member and a connecting portion located at the end of the pin, the plurality of pins being arranged side by side in the front-back direction and extending away from the outer shielding member in the left-right direction, the plurality of pins being used for soldering to a circuit board; a conductive loss member including a plurality of first grounding posts and a plurality of second grounding posts, the distance from at least a portion of the first grounding posts to the plurality of pins in the vertical direction being less than the distance from all the second grounding posts to the plurality of pins, the first grounding posts entering the through holes from the inner surface of the outer shielding member and being electrically coupled to the outer shielding member, the definition being along the vertical direction. The position projected onto the pin from the outer surface of at least a portion of the first grounding post is defined as the first position. The distance from the first position to the connecting part in the left-right direction is defined as the first distance D1. The second grounding post is electrically coupled to the outer shielding through a hole on the inner surface of the outer shielding and protrudes from the outer surface of the outer shielding in the left-right direction. The portion of each second grounding post protruding from the outer shielding forms a stop portion. The stop portion in the left-right direction is located outside the outer shielding to stop the outer shielding from moving to the left or right. The projection of at least a portion of the stop portion in the up-down direction overlaps with the projection of the pin. The position projected onto the pin from the outer surface of at least a portion of the stop portion in the up-down direction is defined as the second position. The distance from the second position in the left-right direction to the connecting part is defined as the second distance D2, where D2 < D1.

[0007] Furthermore, the insulating component is injection molded onto multiple conductive terminals, each conductive terminal further including a main body portion fixed to the insulating component. The main bodies portions of the multiple conductive terminals are arranged along an arrangement direction. The multiple conductive terminals include multiple differential signal terminal pairs and grounding terminals located between two adjacent differential signal terminal pairs. One differential signal terminal pair includes a first signal terminal and a second signal terminal. The length of the first signal terminal is greater than the length of the second signal terminal. The main body portion of the first signal terminal has an exposed area that is exposed to the insulating component and exposed to the air medium. Along the arrangement direction of the main body portion, the main body portion of the second signal terminal is covered within the insulating component at the position corresponding to the exposed area. The insulating component includes multiple through slots. Multiple first grounding posts and multiple through slots are electrically coupled to the main bodies portions of the multiple grounding terminals. Along the arrangement direction of the main body portion, the first grounding posts are at least partially aligned with the exposed areas.

[0008] Furthermore, each conductive terminal also includes a main body portion fixed to the insulating member and at least one bridging portion connected to the side of the main body portion. The main bodies portions of the plurality of conductive terminals are arranged along an arrangement direction. The plurality of conductive terminals include a plurality of differential signal terminal pairs and at least one ground terminal located between two adjacent differential signal terminal pairs. The insulating member includes a first injection molded part and a second injection molded part. The first injection molded part covers all the plurality of main bodies portions of the conductive terminals. The second injection molded part covers the plurality of main bodies portions and the first injection molded part. The bridging portion is exposed in the first injection molded part and covered within the second injection molded part. One of the differential signal terminal pairs includes a first signal terminal and a second signal terminal. The length of the first signal terminal is greater than the length of the second signal terminal. The main body portion of the first signal terminal has at least one exposed area. The exposed area is exposed to the insulating member and exposed to the air medium. The main body portion of the second signal terminal is covered within the insulating member at the position corresponding to the exposed area along the arrangement direction of the main body portions.

[0009] Furthermore, each conductive terminal also includes a main body fixed to the insulating member, two adjacent second grounding posts are electrically coupled to the main bodies of two adjacent grounding terminals respectively, and the blocking parts of two adjacent second grounding posts are connected.

[0010] Furthermore, it includes an insulating housing and two insulating components. The insulating housing includes a mating surface and a mounting surface, a mating groove recessed from the mating surface, a mounting groove recessed from the mounting surface, two side walls located on the left and right sides of the mounting groove, and two end walls located on the upper and lower sides of the mounting groove. The mating groove is used to receive mating components, and the mounting groove accommodates two insulating components. The side walls and / or end walls are recessed with a first snap-fit ​​groove. Each side of the first snap-fit ​​groove has a notch recessed on its mounting surface facing the mating surface. The notch and the first snap-fit ​​groove are connected to the mounting groove. The two insulating components are arranged in a left-right direction, and each insulating component is fixed with a row of conductive terminals. The insulating component includes a first locking block, which is accommodated in the first snap-fit ​​groove.

[0011] Furthermore, the two notches on both sides of the first interlocking groove, one notch is located on the end wall and the other notch is located on the side wall. The wall surface of the notch on the end wall is connected to and flush with the inner surface of the side wall where the other notch is located.

[0012] Furthermore, the two notches on both sides of the first interlocking groove, one notch is located on the end wall and the other notch is located on the side wall. The wall surface of the notch on the side wall is connected to and flush with the inner surface of the end wall where the other notch is located.

[0013] Furthermore, it includes an insulating housing, a retainer, and two insulating components. The insulating housing includes a mating surface and a mating groove recessed on the mating surface. The mating groove is used to receive mating components. The retainer is used to position the circuit board. The two insulating components are arranged in a left-right direction, and each insulating component has a row of conductive terminals fixed to it. The front ends of the two insulating components are fixed to the insulating housing, and the rear ends are fixed to the retainer. Multiple pins are located between the insulating housing and the retainer in a front-back direction. The retainer includes a receiving groove recessed from top to bottom, two side walls located on the left and right sides of the receiving groove, a rear end wall located behind the receiving groove, a bottom wall located below the receiving groove, and a positioning part located below the bottom wall. Parts of the two insulating components are assembled downward into the receiving groove, and the positioning part is used to insert the circuit board downward.

[0014] Furthermore, the retainer has two wall portions spaced apart from each other in front of the receiving groove and a receiving groove located between the two wall portions. The receiving groove is connected to the receiving groove and the two insulating member receiving grooves. Each insulating member includes a limiting groove recessed in the left-right direction, and the wall portion is at least partially received in the limiting groove.

[0015] Furthermore, the rear end wall includes an upper surface, a guide groove recessed downward from the upper surface, and a second fastening groove located below the guide groove. Both the guide groove and the second fastening groove are connected to the receiving groove, and a distance is maintained between the guide groove and the second fastening groove. The height of the guide groove in the vertical direction is greater than the distance between the guide groove and the second fastening groove. The inner wall surface of the guide groove includes a first inclined surface connected to the upper surface, a vertical surface connected to the first inclined surface, and a second inclined surface connected to the vertical surface. The inclination angle of the first inclined surface is smaller than the inclination angle of the second inclined surface. Each insulating member includes a rearwardly protruding second locking block, and the second locking blocks of the two insulating members are jointly received in the second fastening groove.

[0016] Furthermore, the first grounding post is flush with the outer surface of the outer shield along the left and right directions.

[0017] Furthermore, the insulating component is injection molded onto multiple conductive terminals, each conductive terminal further including a main body portion fixed to the insulating component. The main bodies portions of the multiple conductive terminals are arranged along an arrangement direction. The multiple conductive terminals include multiple differential signal terminal pairs and a ground terminal located between two adjacent differential signal terminal pairs. One differential signal terminal pair includes a first signal terminal and a second signal terminal. The length of the first signal terminal is greater than the length of the second signal terminal. The main body portion of the first signal terminal includes two exposed areas. The exposed areas are exposed to the insulating component and exposed to the air medium. Along the arrangement direction of the main body portion, the main body portion of the second signal terminal is covered within the insulating component at the position corresponding to the exposed areas. The two exposed areas of the upper first signal terminal are spaced apart at the bend, and the two exposed areas of the lower first signal terminal are connected at the bend.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The conductive loss component of this application includes multiple first grounding posts and multiple second grounding posts. The first grounding posts enter through holes from the inner surface of the outer shielding component and are electrically coupled to the outer shielding component. The second grounding posts enter through holes from the inner surface of the outer shielding component and are electrically coupled to the outer shielding component. This facilitates the first grounding posts and the second grounding posts to be electrically coupled to the outer shielding component respectively, thereby achieving common grounding and improving the shielding effect. II. Based on this, the distance from at least a portion of the first grounding post to the multiple pins along the vertical direction is less than the distance from all the second grounding posts to the multiple pins, that is, at least a portion of the first grounding post is closer to the pins than all the second grounding posts; the position projected onto the pins by the outer surface of at least a portion of the first grounding post along the vertical direction is defined as the first position, and the distance from the first position to the connecting part along the left-right direction is defined as the first distance D1. The portion of the second grounding post protruding from the outer shielding member forms a stop portion. The position projected onto the pins by the outer surface of at least a portion of the stop portion along the vertical direction is defined as the second position, and the distance from the second position to the connecting part along the left-right direction is defined as the first distance D1. The distance between the material section and the material section is the second distance D2, where D2 < D1. That is, the first grounding post is farther from the material section than the second grounding post in the left-right direction, and the second grounding post, which is farther from the connector in the up-down direction, will not affect the cutting tool cutting the material strip. At the same time, the second grounding post has a through hole in the left-right direction and protrudes from the outer shielding component. The second grounding post protrudes from the outer surface of the outer shielding component in the left-right direction. The part of each second grounding post protruding from the outer shielding component forms a stop part. The stop part in the left-right direction is located on the outside of the outer shielding component to prevent the outer shielding component from moving to the left or right, so as to prevent the outer shielding component from separating from the conductive loss component, thereby affecting the high-frequency effect. Attached Figure Description Figure 1 This is a perspective view of the electrical connector of this utility model after it has been connected with the mating components and the circuit board. Figure 2 for Figure 1 3D exploded view; Figure 3 for Figure 2 An exploded 3D view from another perspective after the insulating shell has been removed; Figure 4 for Figure 2 The right view of one of the terminal modules; Figure 5 for Figure 4 Sectional view along the middle AA; Figure 6 for Figure 4 A sectional view along the middle edge BB; Figure 7 for Figure 4 A three-dimensional view of the shielding sheet detaching from the insulating component; Figure 8 for Figure 7 Right view with the shielding removed; Figure 9 for Figure 8 A magnified view of part C; Figure 10 for Figure 8 A perspective view of the second injection molded part not being injection molded from the first injection molded part and the material bridge portion not having the material strip removed; Figure 11 for Figure 10 Remove the right view of the second injection molded part; Figure 12 for Figure 11 A magnified view of part D; Figure 13 for Figure 11 Right view of the strip with multiple conductive terminals removed; Figure 14 for Figure 2 A three-dimensional view of the insulating shell from another perspective; Figure 15 for Figure 14 Rear view of the insulating housing; Figure 16 for Figure 15 A magnified view of part E in the image; Figure 17 for Figure 2 A three-dimensional view of the protective components; Figure 18 for Figure 17 A schematic diagram of a section cut along a plane defined by XZ; Figure 19 This is a partially enlarged rear view of the insulating housing of an electrical connector according to another embodiment.

[0019] Explanation of reference numerals in the accompanying drawings for the specific implementation methods: Mounting surface 12 docking groove 13 Mounting slot 14 Side wall 15 End wall 16 First engagement groove 17 Gap 18 Insulating component 2 First injection molded part 21 Second injection molded part 22 First block 23 Limiting groove 24 Second block 25 Through slot 26 External shielding component 3 Through hole 31 Conductive terminal 4 Contact part 41 Main body 42 Bridging part 43 44-pin connector Continuous material section 45 First signal terminal S1 Second signal terminal S2 Grounding terminal G Exposed area H Conductive loss component 5 First grounding post 51 Second grounding post 52 Stop part 521 First position P1 Second position P2 Retainer 6 Receiving tank 61 Side wall 62 Back end wall 63 upper surface 631 Guide groove 632 First inclined plane 6321 Vertical plane 6322 Second slope 6323 Second engagement groove 633 Bottom wall 64 Positioning Unit 65 Wall 66 Containment slot 67 Component 200 Circuit board 300 Material strip L Detailed Implementation

[0020] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0021] The electrical connector 100 of this utility model defines the front-to-back direction as the X-axis, the forward direction as the positive X-axis direction, the left-to-right direction as the Y-axis, the rightward direction as the positive Y-axis direction, the up-down direction as the Z-axis, and the upward direction as the positive Z-axis direction.

[0022] like Figures 1 to 18As shown, the electrical connector 100 of this invention is used for rearward insertion of a mating element 200 and for downward soldering to a circuit board 300. The electrical connector 100 includes an insulating housing 1, two terminal modules, and a retaining member 6. Each terminal module includes two insulating members 2, an outer shielding member 3 covering the outside of the insulating members 2, multiple conductive terminals 4 fixed to the insulating members 2, and conductive loss members 5. The multiple conductive terminals 4 are arranged in two rows, left and right, and the retaining member 6 is used for positioning on the circuit board 300.

[0023] like Figure 2 and Figures 14 to 16 As shown, the insulating housing 1 includes a mating surface 11 and a mounting surface 12, a mating groove 13 recessed from the mating surface 11, a mounting groove 14 recessed from the mounting surface 12, two side walls 15 located on the left and right sides of the mounting groove 14, and two end walls 16 located on the upper and lower sides of the mounting groove 14. The mating groove 13 is used to receive mating elements 200, and the mounting groove 14 accommodates two insulating elements 2. Each side wall 15 is recessed with a plurality of first engaging grooves 17, while the end walls 16 are not recessed with first engaging grooves 17. In other embodiments, both the end walls 16 and the side walls 15 may be recessed with first engaging grooves 17, or only the end walls 16 may be recessed with first engaging grooves 17. In this embodiment, each of the mounting surfaces 12 on both sides of the first engaging groove 17 has a notch 18 recessed towards the mating surface 11. Both the notch 18 and the first engaging groove 17 are connected to the mounting groove 14. Of the two notches 18 on both sides of the first engaging groove 17, one notch 18 is located on the end wall 16, and the other notch 18 is located on the side wall 15. The wall surface of the notch 18 on the end wall 16 is connected to and flush with the inner surface of the side wall 15 where the other notch 18 is located. In other embodiments, such as... Figure 19 As shown, there are two notches 18 on both sides of the first interlocking groove 17. One notch 18 is located on the end wall 16, and the other notch 18 is located on the side wall 15. The wall surface of the notch 18 on the side wall 15 is connected to and flush with the inner surface of the end wall 16 where the other notch 18 is located.

[0024] like Figures 2 to 3 and Figure 6 As shown, two insulating components 2 are arranged in a left-right direction. The front ends of the two insulating components 2 are fixed to the insulating housing 1, and the rear ends are fixed to the retaining component 6. Each insulating component 2 is injection molded onto a row of conductive terminals 4. In other embodiments, each insulating component 2 and the row of conductive terminals 4 can be fixed by assembly. Each insulating component 2 includes a first injection molded component 21, a second injection molded component 22, a first locking block 23, a limiting groove 24 recessed in the left-right direction, a rearwardly protruding second locking block 25, and a through groove 26 extending in the left-right direction. The first locking block 23 is received in a first fastening groove 17. The first injection molded component 21 and the second injection molded component 22 are made of the same material to ensure that the dielectric constant is consistent.

[0025] like Figures 5 to 6As shown, the outer shielding component 3 includes multiple through holes 31.

[0026] like Figure 1 and Figures 7 to 13 As shown, each conductive terminal 4 includes a contact portion 41 extending forward from the insulating member 2, a main body portion 42 fixed to the insulating member 2, multiple bridging portions 43 connecting the sides of the main body portion 42, a lead 44 extending downward from the insulating member 2, and a connecting portion 45 located at the end of the lead 44. The multiple contact portions 41 are arranged side-by-side in a vertical direction, the multiple main body portions 42 are arranged side-by-side in an arrangement direction, the multiple leads 44 are arranged side-by-side in a front-back direction, and the multiple leads 44 extend in a left-right direction away from the outer shielding member 3. The multiple leads 44 are used for soldering to the circuit board 300. The first injection molded part 21 covers all the multiple main body portions 42 of the conductive terminals 4, the second injection molded part 22 covers the multiple main body portions 42 and the first injection molded part 21, the bridging portion 43 is exposed in the first injection molded part 21 and covered within the second injection molded part 22, and the multiple leads 44 in the front-back direction are located between the insulating shell 1 and the retainer 6.

[0027] like Figures 7 to 9 and Figure 13 As shown, the plurality of conductive terminals 4 include a plurality of differential signal terminal pairs and a ground terminal G located between two adjacent differential signal terminal pairs. One of the differential signal terminal pairs includes a first signal terminal S1 and a second signal terminal S2, wherein the length of the first signal terminal S1 is greater than the length of the second signal terminal S2. The main body portion 42 of the first signal terminal S1 includes two exposed areas H, which are exposed to the insulating member 2 and exposed to the air medium. Along the arrangement direction of the main body portion 42, the main body portion 42 of the second signal terminal S2 is covered within the insulating member 2 at the position corresponding to the exposed areas H. The two exposed areas H of the upper first signal terminal S1 are spaced apart at the bend, and the two exposed areas H of the lower first signal terminal S1 are connected at the bend.

[0028] like Figures 4 to 6As shown, the conductive loss component 5 includes multiple first grounding posts 51 and multiple second grounding posts 52. The distance from a portion of the first grounding posts 51 to the multiple pins 44 in the vertical direction is less than the distance from all the second grounding posts 52 to the multiple pins 44. The first grounding posts 51 enter the through-hole 31 from the inner surface of the outer shield 3 and are electrically coupled to the outer shield 3. The position where the outer surface of the portion of the first grounding posts 51 in the vertical direction is projected onto the pins 44 is defined as the first position P1. The distance from the first position P1 to the connecting part 45 in the horizontal direction is defined as the first distance D1. In other embodiments, the distance from all the first grounding posts 51 to the multiple pins 44 in the vertical direction is less than the distance from all the second grounding posts 52 to the multiple pins 44. The first grounding posts 51 enter the through-hole 31 from the inner surface of the outer shield 3 and are electrically coupled to the outer shield 3. The position where the outer surface of all the first grounding posts 51 in the vertical direction is projected onto the pins 44 is defined as the first position P1. The distance from the first position P1 to the connecting part 45 in the horizontal direction is defined as the first distance D1. In this embodiment, the second grounding post 52 is electrically coupled to the outer shielding member 3 through the inner surface through hole 31 and protrudes from the outer surface of the outer shielding member 3 in the left-right direction. The portion of each second grounding post 52 protruding from the outer shielding member 3 forms a stop portion 521. The stop portion 521 in the left-right direction is located on the left side of the outer shielding member 3 to prevent the outer shielding member 3 from moving to the left. The stop portion 521 in the left-right direction is located on the right side of the outer shielding member 3 to prevent the outer shielding member 3 from moving to the right. The projection of the vertical stop portion 521 overlaps with the projection of the connector 44. The position where the projection of the outer surface of the vertical stop portion 521 onto the connector 44 is defined as the second position P2. The distance from the second position P2 to the connecting portion 45 in the left-right direction is defined as the second distance D2, where D2 < D1. In this embodiment, the first grounding post 51 in the left-right direction is flush with the outer surface of the outer shield 3, ensuring that the first grounding post 51, which is closer to the connector 44 in the vertical direction, does not affect the cutting of the material strip L by the tool. In other embodiments, the first grounding post 51 in the left-right direction can also slightly protrude from the outer surface of the outer shield 3, as long as it does not affect the cutting of the material strip L by the tool. In other embodiments, the projection of the entire vertical stop portion 521 overlaps with the projection of the connector 44. The position where the projection of the outer surface of the entire vertical stop portion 521 onto the connector 44 is defined as the second position P2. The distance from the second position P2 to the connecting portion 45 in the left-right direction is defined as the second distance D2, where D2 < D1.

[0029] like Figures 5 to 6 and Figures 8 to 9As shown, multiple first grounding posts 51 and multiple through slots 26 are electrically coupled to the main body 42 of multiple grounding terminals G. In this embodiment, some first grounding posts 51 are partially aligned with exposed areas H along the arrangement direction of the main body 42, and some first grounding posts 51 are completely aligned with exposed areas H along the arrangement direction of the main body 42. In other embodiments, all first grounding posts 51 are partially aligned with exposed areas H along the arrangement direction of the main body 42. In some other embodiments, all first grounding posts 51 may even be completely aligned with exposed areas H along the arrangement direction of the main body 42. In this embodiment, two adjacent second grounding posts 52 are electrically coupled to the main body 42 of two adjacent grounding terminals G, and the stopping portions 521 of the two adjacent second grounding posts 52 are connected to increase the strength of the two connected stopping portions 521 and make them less prone to breakage.

[0030] like Figures 2 to 3 and Figures 17 to 18 As shown, the retaining member 6 includes a recessed receiving groove 61 extending downwards, two side walls 62 located on the left and right sides of the receiving groove 61, a rear end wall 63 located behind the receiving groove 61, a bottom wall 64 located below the receiving groove 61, and a positioning part 65 located below the bottom wall 64. Parts of the two insulating members 2 are partially assembled downwards into the receiving groove 61. The positioning part 65 is used to insert downwards into the circuit board 300, thus positioning the retaining member 6 on the circuit board 300. The retaining member 6 has two wall portions 66 spaced apart to the left and right in front of the receiving groove 61 and a receiving groove 67 located between the two wall portions 66. The receiving groove 67 connects to the receiving groove 61, and the two insulating members 2 are received in the receiving groove 67. Parts of the wall portions 66 are received within the limiting groove 24. In other embodiments, the entire wall portion 66 is received within the limiting groove 24. Since not only are parts of the insulating members 2 received in the receiving groove 61, but the wall portions 66 of the retaining member 6 are also received within the limiting groove 24, the double limiting further facilitates the fixation of the insulating members 2 and the protective member. The rear end wall 63 includes an upper surface 631, a guide groove 632 recessed downward from the upper surface 631, and a second fastening groove 633 located below the guide groove 632. The guide groove 632 and the second fastening groove 633 are both connected to the receiving groove 61, and a distance is maintained between the guide groove 632 and the second fastening groove 633. The height of the guide groove 632 in the vertical direction is greater than the distance between the guide groove 632 and the second fastening groove 633. The inner wall surface of the guide groove 632 includes a first inclined surface 6321 connected to the upper surface 631, a vertical surface 6322 connected to the first inclined surface 6321, and a second inclined surface 6323 connected to the vertical surface 6322. The inclination angle of the first inclined surface 6321 is smaller than the inclination angle of the second inclined surface 6323. The second locking blocks 25 of the two insulating members 2 are jointly received in the second fastening groove 633. In summary, the electrical connector 100 of this utility model has the following beneficial effects: (1) The conductive loss component 5 of this application includes a plurality of first grounding posts 51 and a plurality of second grounding posts 52. The first grounding posts 51 enter through holes 31 from the inner surface of the outer shielding component 3 and are electrically coupled to the outer shielding component 3. The second grounding posts 52 enter through holes 31 from the inner surface of the outer shielding component 3 and are electrically coupled to the outer shielding component 3. This facilitates the first grounding posts 51 and the second grounding posts 52 to be electrically coupled to the outer shielding component 3 respectively, achieving common grounding and improving the shielding effect. On this basis, the distance from at least a portion of the first grounding posts 51 to the plurality of pins 44 in the vertical direction is less than the distance from all the second grounding posts 52 to the plurality of pins 44. That is, at least a portion of the first grounding posts 51 in the vertical direction is closer to the pins 44 than all the second grounding posts 52. The position projected from the outer surface of at least a portion of the first grounding posts 51 in the vertical direction to the pins 44 is defined as the first position P1, and the distance from the first position P1 to the connecting part 45 in the horizontal direction is defined as the first distance D1. The second grounding posts 52 protrude beyond the outer shielding component 3. A stop portion 521 is partially formed. The position where the outer surface of at least part of the stop portion 521 is projected onto the pin 44 in the vertical direction is defined as the second position P2. The distance from the second position P2 to the connecting part 45 in the horizontal direction is defined as the second distance D2, where D2 < D1. That is, the first grounding post 51 is farther from the connecting part 45 in the horizontal direction than the second grounding post 52. This ensures that the first grounding post 51, which is closer to the pin 44 in the vertical direction, will not affect the cutting tool cutting the material strip L. The second grounding post 52, which is farther from the pin 44 in the vertical direction, will also not affect the cutting tool cutting the material strip L. At the same time, the second grounding post 52 in the horizontal direction passes through the through hole 31 and protrudes from the outer surface of the outer shield 3 in the horizontal direction. The portion of each second grounding post 52 that protrudes from the outer shield 3 forms a stop portion 521. The stop portion 521 in the horizontal direction is located outside the outer shield 3 to prevent the outer shield 3 from moving to the left or right, so as to prevent the outer shield 3 from separating from the conductive loss member 5, thereby affecting the high-frequency effect.

[0031] (2) The main body 42 of the first signal terminal S1 is exposed to the air medium through the exposed area H. The main body 42 of the second signal terminal S2, corresponding to the exposed area H, is covered in the insulating member 2. The capacitance around the exposed area H is reduced, which can shorten the signal transmission time of the first signal terminal S1 and improve the signal transmission delay between the first signal terminal S1 and the second signal terminal S2 with inconsistent lengths. Since the exposed area H is exposed to the air medium, its impedance will increase accordingly. The adjacent part of the exposed area H of the first signal terminal S1 is not exposed to the air medium, and its impedance is correspondingly lower. Therefore, the impedance of the exposed area H and its adjacent part of the first signal terminal S1 fluctuates. The characteristic impedance mismatch will cause signal reflection. By setting the first grounding post 51 along the arrangement direction of the main body 42 to be at least partially aligned with the exposed area H, it is beneficial to absorb part of the signal reflection and reduce crosstalk caused by signal reflection.

[0032] (3) All conductive terminals 4 of the electrical connector 100 of this utility model are fixed at once by the first injection molding part 21. Since each conductive terminal 4 also includes a bridging part 43 connecting the side of the main body part 42, which is used to connect with the bridging part 43 of the adjacent conductive terminal 4 through the material strip L, the bridging part 43 of the first injection molding part 21 is exposed in the first injection molding part 21 so as to cut the material strip L; when the second injection molding part 22 is injection molded into multiple conductive terminals 4, multiple bridging parts 43 are covered in the second injection molding part 22 to avoid large impedance fluctuations of the main body part 42 and the bridging part 43 due to the different dielectric constants of the media around the main body part 42 and the bridging part 43; since the length of the first signal terminal S1 is greater than the length of the second signal terminal S2, the first signal terminal S1 and the second signal terminal S2 are connected to each other. There is a signal transmission delay between the two terminals S2. The main body 42 of the first signal terminal S1 is exposed to the air medium through the exposed area H. The main body 42 of the second signal terminal S2, corresponding to the exposed area H, is covered by the insulating member 2. The capacitance around the exposed area H is reduced, which can shorten the signal transmission time of the first signal terminal S1 and improve the signal transmission delay between the first signal terminal S1 and the second signal terminal S2 with inconsistent lengths. The fact that the main body 42 of the second signal terminal S2, corresponding to the exposed area H, is covered by the insulating member 2 along the arrangement direction of the main body 42 also significantly improves the impedance consistency of the second signal terminal S2. The technical solution of this utility model improves the signal transmission delay while taking into account the impedance fluctuation consistency of the differential signal terminal pair.

[0033] (4) The side wall 15 or / and the end wall 16 are recessed with a first fastening groove 17. The mounting surfaces 12 on both sides of the first fastening groove 17 are recessed with a notch 18 facing the mating surface 11. The notch 18 and the first fastening groove 17 are connected to the mounting groove 14, which is conducive to increasing the elastic deformation of a part of the side wall 15 or a part of the end wall 16 where the first fastening groove 17 is located, and further facilitates the smooth reception of the first locking block 23 in the first fastening groove 17.

[0034] (5) By setting one of the notches 18 on the end wall 16 and the other notch 18 on the side wall 15 through the first fastening groove 17, the distance between the two notches 18 in the vertical direction can be extended in a limited space. This avoids the side wall 15 and the end wall 16 between the two notches 18 not easily returning to their original positions after elastic deformation during the process of the first locking block 23 entering the first fastening groove 17. On this basis, the wall surface of the notch 18 on the end wall 16 is connected and flush with the inner surface of the side wall 15 where the other notch 18 is located, which is conducive to the balanced elastic deformation of the side wall 15 and the end wall 16 between the two notches 18. By having one notch 18 on one side of the first interlocking groove 17 and the other notch 18 on the side wall 15, the distance between the two notches 18 in the left and right directions can be extended within a limited space. This prevents the side wall 15 and the end wall 16 between the two notches 18 from easily returning to their original positions after elastic deformation during the process of the first locking block 23 entering the first interlocking groove 17. Furthermore, the wall surface of the notch 18 on the side wall 15 is connected to and flush with the inner surface of the end wall 16 where the other notch 18 is located, which is conducive to the balanced elastic deformation of the side wall 15 and the end wall 16 between the two notches 18.

[0035] (6) Each insulating member 2 is fixed with a row of conductive terminals 4. The front ends of the two insulating members 2 are fixed to the insulating housing 1 and the rear ends are fixed to the retaining member 6. Multiple pins 44 are located between the insulating housing 1 and the retaining member 6 in the front-back direction, which helps to keep the spacing of the multiple pins 44 in the two rows stable, so as to ensure stable contact with the circuit board 300. The retaining member 6 includes a receiving groove 61 recessed from top to bottom, two side walls 62 located on the left and right sides of the receiving groove 61, a rear end wall 63 located behind the receiving groove 61, and a bottom wall 64 located below the receiving groove 61. This not only ensures that the retaining member 6 itself has sufficient strength, but also that the retaining member 6 is not easy to tilt or fall over when positioned on the circuit board 300, which is beneficial to fixing a part of the two insulating members 2. Furthermore, since a part of the insulating member 2 is assembled downward into the receiving groove 61, which is consistent with the direction of the positioning part 65 inserted into the circuit board 300, during the assembly process, since the direction of the applied external force is consistent, each application of force is simultaneously beneficial to fixing a part of the insulating member 2 to the receiving groove 61 and fixing the positioning part 65 to the circuit board 300.

[0036] (7) The guide groove 632 is used to guide the second locking blocks 25 of the two insulating parts 2 into the second fastening groove 633. The inclination angle of the first inclined surface 6321 is smaller than that of the second inclined surface 6323. The smaller inclination angle of the first inclined surface 6321 can avoid the end wall of the two insulating parts 2 being easily broken when entering the guide groove 632 due to the weak strength of the rear end wall 63 where the first inclined surface 6321 is located. The larger inclination angle of the second inclined surface 6323 is conducive to the fact that a part of the insulating part 2 and the second locking block 25 are both located in the cavity connected by the receiving groove 61 and the guide groove 632. The height of the guide groove 632 in the vertical direction is greater than the distance between the guide groove 632 and the second fastening groove 633, which is conducive to the second locking block 25 entering the second fastening groove 633 quickly.

[0037] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. An electrical connector, characterized in that, include: Insulating components; An outer shielding component covers the outside of the insulating component, and the outer shielding component includes multiple through holes; Multiple conductive terminals are fixed to an insulating component. Each conductive terminal includes a lead extending downward from the insulating component and a connecting part located at the end of the lead. The multiple leads are arranged side by side in the front-to-back direction and extend away from the outer shielding component in the left-to-right direction. The multiple leads are used for soldering to a circuit board. The conductive loss component includes multiple first grounding posts and multiple second grounding posts. The distance from at least a portion of the first grounding posts to the multiple pins in the vertical direction is less than the distance from all the second grounding posts to the multiple pins. The first grounding posts enter through holes from the inner surface of the outer shield and are electrically coupled to the outer shield. The position projected onto the pin from the outer surface of at least a portion of the first grounding posts in the vertical direction is defined as the first position. The distance from the first position to the connecting part in the horizontal direction is defined as the first distance D1. The second grounding posts enter through holes from the inner surface of the outer shield and are electrically coupled to the outer shield. The second grounding posts protrude from the outer surface of the outer shield in the horizontal direction. The portion of each second grounding post protruding from the outer shield forms a stop portion. The stop portion in the horizontal direction is located outside the outer shield to stop the outer shield from moving to the left or right. The projection of at least a portion of the stop portion in the vertical direction overlaps with the projection of the pin. The position projected onto the pin from the outer surface of at least a portion of the stop portion in the vertical direction is defined as the second position. The distance from the second position in the horizontal direction to the connecting part is defined as the second distance D2, where D2 < D1.

2. The electrical connector as described in claim 1, characterized in that: An insulating component is injection molded onto multiple conductive terminals. Each conductive terminal also includes a main body portion fixed to the insulating component. The main bodies portions of the multiple conductive terminals are arranged along an arrangement direction. The multiple conductive terminals include multiple differential signal terminal pairs and a ground terminal located between two adjacent differential signal terminal pairs. One differential signal terminal pair includes a first signal terminal and a second signal terminal. The length of the first signal terminal is greater than the length of the second signal terminal. The main body portion of the first signal terminal has an exposed area that is exposed to the insulating component and exposed to the air medium. Along the arrangement direction of the main body portion, the main body portion of the second signal terminal is covered within the insulating component at the position corresponding to the exposed area. The insulating component includes multiple through slots. Multiple first grounding posts and multiple through slots are electrically coupled to the main bodies portions of the multiple grounding terminals. Along the arrangement direction of the main body portion, the first grounding posts are at least partially aligned with the exposed areas.

3. The electrical connector as described in claim 1, characterized in that: Each conductive terminal further includes a main body portion fixed to the insulating member and at least one bridging portion connected to the side of the main body portion. The main bodies portions of the plurality of conductive terminals are arranged along an arrangement direction. The plurality of conductive terminals include a plurality of differential signal terminal pairs and at least one ground terminal located between two adjacent differential signal terminal pairs. The insulating member includes a first injection molded part and a second injection molded part. The first injection molded part covers all the plurality of main bodies portions of the conductive terminals. The second injection molded part covers the plurality of main bodies portions and the first injection molded part. The bridging portion is exposed in the first injection molded part and covered within the second injection molded part. One of the differential signal terminal pairs includes a first signal terminal and a second signal terminal. The length of the first signal terminal is greater than the length of the second signal terminal. The main body portion of the first signal terminal has at least one exposed area. The exposed area is exposed to the insulating member and exposed to the air medium. The main body portion of the second signal terminal, corresponding to the position of the exposed area, is covered within the insulating member along the arrangement direction of the main bodies.

4. The electrical connector as described in claim 1, characterized in that: Each conductive terminal also includes a main body fixed to an insulating component, two adjacent second grounding posts are electrically coupled to the main bodies of two adjacent grounding terminals respectively, and the blocking portions of two adjacent second grounding posts are connected.

5. The electrical connector as described in claim 1, characterized in that: The device includes an insulating housing and two insulating components. The insulating housing includes a mating surface and a mounting surface, a mating groove recessed from the mating surface, a mounting groove recessed from the mounting surface, two side walls located on the left and right sides of the mounting groove, and two end walls located on the upper and lower sides of the mounting groove. The mating groove is used to receive mating components, and the mounting groove accommodates the two insulating components. The side walls and / or end walls are recessed with a first snap-fit ​​groove. Each side of the first snap-fit ​​groove has a notch recessed on its mounting surface facing the mating surface. The notches and the first snap-fit ​​groove are connected to the mounting groove. The two insulating components are arranged in a left-right direction, and each insulating component is fixed with a row of conductive terminals. The insulating component includes a first locking block, which is accommodated in the first snap-fit ​​groove.

6. The electrical connector as described in claim 5, characterized in that: The first interlocking groove has two notches on both sides, one of which is located on the end wall and the other on the side wall. The wall surface of the notch on the end wall is connected to and flush with the inner surface of the side wall where the other notch is located.

7. The electrical connector as claimed in claim 5, characterized in that: The first interlocking groove has two notches on both sides, one of which is located on the end wall and the other on the side wall. The wall surface of the notch on the side wall is connected to and flush with the inner surface of the end wall where the other notch is located.

8. The electrical connector as claimed in claim 1, characterized in that: The device includes an insulating housing, a retainer, and two insulating components. The insulating housing includes a mating surface and a mating groove recessed on the mating surface. The mating groove is used to receive mating components. The retainer is used to position the device on a circuit board. The two insulating components are arranged in a left-right direction, and each insulating component has a row of conductive terminals fixed to it. The front ends of the two insulating components are fixed to the insulating housing, and the rear ends are fixed to the retainer. Multiple pins are located between the insulating housing and the retainer in a front-back direction. The retainer includes a receiving groove recessed from top to bottom, two side walls located on the left and right sides of the receiving groove, a rear end wall located behind the receiving groove, a bottom wall located below the receiving groove, and a positioning part located below the bottom wall. Parts of the two insulating components are assembled downward into the receiving groove, and the positioning part is used to insert the device downward into the circuit board.

9. The electrical connector as claimed in claim 8, characterized in that: The retainer has two wall portions spaced apart from each other in front of the receiving groove and a receiving groove located between the two wall portions. The receiving groove is connected to the receiving groove and the two insulating member receiving grooves. Each insulating member includes a limiting groove recessed in the left-right direction, and the wall portion is at least partially received in the limiting groove.

10. The electrical connector as claimed in claim 8, characterized in that: The rear end wall includes an upper surface, a guide groove recessed downward from the upper surface, and a second fastening groove located below the guide groove. Both the guide groove and the second fastening groove are connected to the receiving groove, and a distance is maintained between the guide groove and the second fastening groove. The height of the guide groove in the vertical direction is greater than the distance between the guide groove and the second fastening groove. The inner wall surface of the guide groove includes a first inclined surface connected to the upper surface, a vertical surface connected to the first inclined surface, and a second inclined surface connected to the vertical surface. The inclination angle of the first inclined surface is smaller than the inclination angle of the second inclined surface. Each insulating member includes a rearwardly protruding second locking block. The second locking blocks of the two insulating members are jointly received in the second fastening groove.

11. The electrical connector as claimed in claim 1, characterized in that: The first grounding post along the left-right direction is flush with the outer surface of the outer shield.

12. The electrical connector as claimed in claim 1, characterized in that: An insulating component is injection molded onto multiple conductive terminals. Each conductive terminal also includes a main body portion fixed to the insulating component. The main bodies portions of the multiple conductive terminals are arranged along an arrangement direction. The multiple conductive terminals include multiple differential signal terminal pairs and a ground terminal located between two adjacent differential signal terminal pairs. One differential signal terminal pair includes a first signal terminal and a second signal terminal. The length of the first signal terminal is greater than the length of the second signal terminal. The main body portion of the first signal terminal includes two exposed areas. The exposed areas are exposed to the insulating component and exposed to the air medium. Along the arrangement direction of the main body portion, the main body portion of the second signal terminal is covered within the insulating component at the position corresponding to the exposed areas. The two exposed areas of the upper first signal terminal are spaced apart at the bend, and the two exposed areas of the lower first signal terminal are connected at the bend.

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