Conductive terminal and electric connector

Abstract

The invention discloses a conductive terminal and an electric connector, the conductive terminal comprises a side wall and a top wall, one side, far away from the side wall, of the top wall along the left-right direction is set as a broken edge, the top wall is provided with a first contact part, the lower edge of the side wall bends and extends towards the top wall to form a contact elastic sheet, and the contact elastic sheet is convexly provided with a second contact part towards the top wall. The portion, behind the rear connecting edge, of the lower edge of the side wall is arranged to be a broken edge, the formed conductive terminal is simple in structure, on the basis, the conductive terminal elastically abuts against a butt-joint terminal through a contact elastic piece, the position between the butt-joint terminal and the inserted conductive terminal is properly adjusted to avoid fatigue of the contact elastic piece caused by rigid abutting of the butt-joint terminal and the inserted conductive terminal, and the service life of the conductive terminal is prolonged. The arrangement of the contact elastic sheet absorbs the matching deviation of plugging matching, reduces the weight of the front section of the conductive terminal to enable the gravity center position of the conductive terminal to move backwards, solves the problem that the front section of the conductive terminal topples downwards due to overweight, avoids missing solder between the welding part and the circuit board caused by tail raising of the conductive terminal, and enables the electric connector to be stably arranged on the circuit board.

Description

Technical field

[0001] The present invention relates to a conductive terminal and an electrical connector, and in particular to a conductive terminal and an electrical connector which can improve the problem of tipping over. [Background Technology]

[0002] A conventional electrical connector includes an insulating body and a conductive terminal fixed within the insulating body. The front section of the conductive terminal has a square cylindrical contact section for receiving a pin in a socket. The contact section is suspended outside the circuit board, and the distal end of the conductive terminal has a flat soldering section for soldering to a circuit board. Because the contact section is a square cylindrical structure formed by four walls, and the resulting square cylindrical structure extends relatively long in the plugging direction to match the length of the pin inserted into the square cylindrical structure, the length of the square cylindrical structure of the conductive terminal is heavier than the soldering section at the distal end of the conductive terminal, resulting in the conductive terminal being top-heavy. Therefore, before the conductive terminal is soldered to the circuit board, the contact section of the conductive terminal is prone to tilting downward, and the distal end of the conductive terminal is at risk of tilting upward. This not only makes it difficult to install the soldering section of the conductive terminal on the circuit board, but also increases the risk of the conductive terminal and the electrical connector falling off the circuit board and being damaged.

[0003] Therefore, it is necessary to design a conductive terminal and an electrical connector to overcome the above problems. [Summary of the invention]

[0004] In response to the problems faced by the background technology, the purpose of the present invention is to provide a conductive terminal and an electrical connector in which one side of the top wall away from the side wall in the left and right directions is set as a broken edge, the top wall is provided with a first contact portion, a contact spring is bent and extended from the lower edge of the side wall toward the top wall, and a second contact portion is provided on the contact spring toward the top wall. The lower edge of the side wall behind the rear connection edge is set as a broken edge to improve the conductive terminal and the electrical connector. The front end of the connector is tilted.

[0005] To achieve the above objectives, the present invention adopts the following technical means:

[0006] A conductive terminal for connecting with a mating terminal, characterized by comprising:

[0007] The hook at the bottom of the hook at the top of the hook at the elongated tab is formed on a flat plate with a groove at the top and a groove at the bottom of the hook at the bottom of the hook at the elongated tab, the hook at the bottom of the hook at the elongated tab being adapted to move the pins relative to the hook at the top of the hook.

[0008] Furthermore, the contact spring includes a first bent portion extending from the side wall toward the top wall, the front and rear edges of the first bent portion are respectively formed as the front connecting edge and the rear connecting edge, an inclined portion extends obliquely from the end of the first bent portion toward the top wall, a second bent portion is bent from the end of the inclined portion toward the side wall, a free end portion extends from the end of the second bent portion toward the side wall, and the second contact portion is arranged on the free end portion.

[0009] Furthermore, the rear edge of the free end is configured as a broken edge, and a guide portion extends forward and obliquely downward from the front end of the free end, and the guide portion is used to guide the docking terminal to be inserted between the top wall and the free end along the front-to-back direction, and the front end of the guide portion is located behind the front connecting edge.

[0010] Furthermore, the first bending portion has a first material discharge opening, one side of the first material discharge opening extends to the side wall, the second bending portion has a second material discharge opening, the inclined portion is located between the first material discharge opening and the second material discharge opening, and the side wall portion located behind the rear connecting edge has at least one third material discharge opening, and the third material discharge opening extends to the top wall.

[0011] Furthermore, in the front-to-back direction, the distance between the front edge of the second bent portion and the rear edge of the second bent portion and the distance between the front edge of the free end portion and the rear edge of the free end portion are both smaller than the distance between the front connecting edge and the rear connecting edge, the free end portion is parallel to the top wall, and the second contact portion is a convex bulge protruding from the free end portion.

[0012] Furthermore, the first bending portion has a first bending angle, the range of the first bending angle is greater than or equal to 50 degrees and less than or equal to 70 degrees, and the second bending portion has a second bending angle, the range of the second bending angle is greater than or equal to 45 degrees and less than or equal to 60 degrees.

[0013] Furthermore, an extension portion extends backward and downward from the rear end of the side wall and the welding portion is connected to the rear end of the extension portion. The welding portion and the extension portion are both formed into a vertical plate shape by stamping and blanking. The size of the extension portion in the up and down directions is larger than the size of the side wall in the up and down directions. The blanking surface at the bottom end of the welding portion is used for welding to the circuit board.

[0014] To achieve the above object, the present invention provides another technical means:

[0015] An electrical connector, wherein the front end of the electrical connector is used for inserting a mating terminal of a mating connector, and the rear end of the electrical connector is used for being placed on a circuit board, characterized in that:

[0016] An insulating body, the insulating body having a base portion disposed on the surface of the circuit board and a plug portion extending forward from the base portion and located outside the circuit board, the base portion having a larger left-right dimension than the plug portion, a plurality of terminal slots extending from the base portion toward the plug portion, the plurality of terminal slots being arranged in a row along the left-right direction;

[0017] 18. The electrical connector of claim 17, wherein the at least one electrically conductive portion of the at least one conductive portion is secured to a position adjacent to the top of the at least one conductive portion and wherein the at least one conductive portion is secured to a position adjacent to the top of the at least one conductive portion.

[0018] Furthermore, the contact spring includes a first bending portion extending from the side wall toward the top wall, the first bending portion is the bending portion where the contact spring is connected to the side wall, the front and rear edges of the first bending portion are respectively formed as a front connecting edge and a rear connecting edge connected to the side wall, the first contact portion is closer to the front than the rear connecting edge, an inclined portion extends obliquely from the end of the first bending portion toward the top wall, a second bending portion is bent from the end of the inclined portion toward the side wall, a free end portion extends from the end of the second bending portion toward the side wall, and the second contact portion is arranged on the free end portion.

[0019] Furthermore, the free end portion is parallel to the top wall, the top wall is protrudingly provided with two first contact portions, and the two first contact portions are convex hulls, the free end portion is protrudingly provided with a second contact portion, and the second contact portion is a convex hull, and when viewed in the up and down direction, the second contact portion is located between the two first contact portions.

[0020] Furthermore, a first groove portion is recessed downward from the bottom surface of the terminal groove, and a second groove portion is recessed from one of the side surfaces of the terminal groove along the left and right directions. The side wall is limited to the first groove portion, and the top wall is limited to the second groove portion.

[0021] Furthermore, there is a partition wall between the two adjacent terminal slots on the left and right, and a notch is recessed on the broken edge of the rear end of the top wall of each conductive terminal along the left and right directions toward the side away from the partition wall. The notch and the partition wall are arranged relative to each other in the left and right directions to increase the creepage path between the conductive terminals accommodated in the two adjacent terminal slots on the left and right.

[0022] Furthermore, a one-time locking spring extends backward from the side wall to lock with the step surface on the inner side of the terminal slot, an extension portion and the welding portion connected to the rear end of the extension portion extend backward and downward from the side wall behind the one-time locking spring, the base has a rear end opening, a plug is downwardly installed in the rear end opening, the plug has a plurality of grooves arranged along the left and right directions to accommodate the extension portions of the plurality of conductive terminals one by one, and the front end face of the plug is blocked at the rear end of the top wall.

[0023] Furthermore, a locking arm extends backward from the front end of the top surface of the insulating body, and a limiting portion is protruded upward on the top surface of the insulating body, and the limiting portion spans above the free end of the locking arm. The limiting portion is recessed with at least two buckle grooves on the left and right sides of the locking arm. The electrical connector also includes a suction cover, which includes a suction plate, at least two buckle arms extending downward from the suction plate and arranged at intervals in the left and right directions, and a counterweight portion extends downward from the bottom surface of the suction plate, and the counterweight portion is located behind the locking arm. The buckle arm is buckled in the corresponding buckle groove, and the counterweight portion cover is arranged above the plug.

[0024] Furthermore, the welding portion includes a first part extending in the up-down direction and a second part extending backward from the lower end of the first part to be surface-welded to the circuit board, a clamping portion is protruding forward from the front side surface of the first part, a barb is protruding from the top surface of the clamping portion, the bottom surface of the clamping portion is a flat surface, and a clamping groove is concavely provided forward from the rear end of the base, the clamping portion is inserted forward into the clamping groove, the barb interferes with the inner top surface of the clamping groove, the bottom surface of the clamping portion is tightly against the inner bottom surface of the clamping groove, and the left and right sides of the clamping portion are spaced apart from the left and right inner side surfaces of the clamping groove.

[0025] Compared with the prior art, the conductive terminal and the electrical connector of the present invention have the following advantages:

[0026] The conductive terminal includes the side wall extending in the up-down direction and the top wall extending in the left-right direction from the upper edge of the side wall, the top wall is configured as a broken edge on one side away from the side wall in the left-right direction, the top wall is provided with the first contact portion, the contact spring is bent and extended from the lower edge of the side wall toward the top wall, the contact spring is provided with the second contact portion protruding toward the top wall, and the lower edge of the side wall is configured as a broken edge at the rear of the rear connecting edge, the conductive terminal structure formed is relatively simple, on this basis, the conductive terminal can be elastically abutted against the docking terminal through the contact spring, and the docking terminal and the conductive terminal inserted can be appropriately adjusted. The position is to avoid the direct rigid abutment between the docking terminal and the conductive terminal, which may cause fatigue of the contact spring. The setting of the contact spring can absorb the mating deviation of the docking terminal. Since the structure of the front section of the conductive terminal is relatively simple, the weight of the front section of the conductive terminal is reduced, so that the center of gravity of the conductive terminal is moved backward, which improves the problem of the front section of the conductive terminal being overweight and tilting downward. At the same time, it also avoids the problem of the rear section of the conductive terminal being tilted up, which may cause empty soldering between the welding part and the circuit board, so that the electrical connector can be firmly placed on the circuit board, avoiding the risk of the electrical connector falling to the ground and being damaged before re-soldering.

Brief Description of the Drawings

[0027] Figure 1 is a three-dimensional diagram of the electrical connector of the present invention;

[0028] Figure 2 An exploded view of the electrical connector of the present invention;

[0029] Figure 3 for Figure 1 Cross-sectional view along AA direction;

[0030] Figure 4 for Figure 1 Cross-section along the BB direction;

[0031] Figure 5 for Figure 4 A partial enlarged view of middle F;

[0032] Figure 6 This is a top view of the electrical connector of the present invention, omitting the mounting plug and the suction cover;

[0033] Figure 7 for Figure 6 Cross-sectional view along CC direction;

[0034] Figure 8 for Figure 7 A partial enlarged view of G in the middle;

[0035] Figure 9 for Figure 6 Cross-section along DD direction;

[0036] Figure 10 for Figure 9 A partial enlarged view of Figure I;

[0037] Figure 11 for Figure 6 Cross-sectional view along the EE direction;

[0038] Figure 12 for Figure 11 A partial enlarged view of middle J;

[0039] Figure 13 is a three-dimensional diagram of the conductive terminal of the present invention;

[0040] Figure 14 for Figure 13 A partial enlarged view of middle H;

[0041] Figure 15 It is a front view of the conductive terminal of the present invention;

[0042] Figure 16 This is a schematic diagram of the first bending portion of the conductive terminal being bent on a jig in the present invention.

[0043]

[0044] [Specific implementation method]

[0045] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0046] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0047] like Figure 1 and Figure 2 As shown, an electrical connector, the front end of the electrical connector is used for inserting a docking terminal 5 of a docking connector (not shown), and the rear end of the electrical connector is used to be placed on a circuit board P. It includes an insulating body 1, a plurality of conductive terminals 2 accommodated in the insulating body 1, a plug 3 installed on the insulating body 1, and a suction cover 4 for sucking the insulating body 1.

[0048] like Figures 2 to 4 、 Figure 7 、 Figure 8 、 Figure 11 and Figure 12As shown, the insulating body 1 comprises a base 11 and a plug-in portion 12 extending forward from the base 11. The base 11 is positioned on the surface of the circuit board P, while the plug-in portion 12 is positioned outside the circuit board P. The base 11 is larger in the left-right direction than the plug-in portion 12 to increase the weight of the base 11 on the circuit board P, facilitating soldering of the conductive terminals 2 housed in the insulating body 1 to the circuit board P. This reduces or even prevents the plug-in portion 12, located outside the circuit board P, from tipping downward before soldering the conductive terminals 2 to the circuit board P, potentially causing the electrical connector to fall downward and resulting in a loose solder joint between the surface-mounted conductive terminals 2 and the circuit board P. The base 11 has a rear opening 111 that is open only upward and rearward, facilitating downward installation of the plug 3 within the rear opening 111. The lower half of the base 11 is recessed with a plurality of engaging slots 112 arranged in a left-right direction, extending forward from the rear end. The insulating body 1 has a plurality of terminal slots 13 arranged in a row along the left-right direction. The terminal slots 13 extend from the base 11 toward the plug-in portion 12 to accommodate the conductive terminals 2. A first slot 14 is recessed downward from the bottom surface of the terminal slot 13, and a second slot 15 is recessed from one of the left-right side surfaces of the terminal slot 13. Both the first slot 14 and the second slot 15 extend in the front-to-back direction. A partition wall 16 is provided between two adjacent terminal slots 13 to separate the conductive terminals 2 located in the two adjacent terminal slots 13. A locking arm 17 extends rearward from the front end of the top surface of the insulating body 1. The locking arm 17 is used to lock with the docking connector. A limit portion 18 protrudes upward from the top surface of the insulating body 1. The limit portion 18 spans above the free end of the locking arm 17 and stops above the free end of the locking arm 17. The limiting portion 18 is recessed with at least two buckle slots 19 located on the left and right sides of the locking arm 17. In this embodiment, there are four buckle slots 19. In other embodiments, there may be two or other numbers, which are not limited here. The left-right dimensions of the limiting portion 18 are the same as the left-right dimensions of the plug-in portion 12. In this embodiment, the four buckle slots 19 are distributed as follows: one buckle slot 19 is provided on each of the front and rear side surfaces of the left portion of the limiting portion 18 located on the locking arm 17, and one buckle slot 19 is provided on each of the front and rear side surfaces of the right portion of the limiting portion 18 located on the locking arm 17.

[0049] like Figure 5 、 Figure 6 、 Figure 9 、 Figure 10 、 Figures 13 to 16As shown, the plurality of conductive terminals 2 are received in the plurality of terminal slots 13 in a one-to-one correspondence. Each conductive terminal 2 includes a side wall 21 extending in the vertical direction and a top wall 23 extending from the upper edge of the side wall 21 in the horizontal direction. The top wall 23 is horizontally arranged in the horizontal direction. The side wall 21 and the top wall 23 are both accommodated in the terminal groove 13, and the side of the top wall 23 away from the side wall 21 in the left and right direction is set as a broken edge, and the top wall 23 is provided with at least one first contact portion 231. In this embodiment, the top wall 23 is protruding with two first contact portions 231 and the two first contact portions 231 are both set as convex hulls. The two first contact portions 231 are formed by stamping the top wall 23 by external equipment so that each first contact portion 231 protrudes downward from the top wall 23, and each first contact portion 231 is closed and connected to the top wall 23. The two first contact portions 231 are aligned in the front-to-back direction and are spaced apart. Of course, in other embodiments, only one or another number of first contact portions 231 can be provided, which is not limited here. A notch 232 is formed in the broken edge of the rear end of the top wall 23 of each conductive terminal 2, facing away from the partition wall 16. The notch 232 is positioned opposite the partition wall 16 in the left-right direction, thereby increasing the creepage path between the conductive terminals 2 received in two adjacent terminal slots 13. The broken edge of the side wall 21 is located in the first slot portion 14, while the broken edge of the top wall 23 is located in the second slot portion 15. This restricts the vertical and horizontal freedom of the conductive terminal 2, effectively preventing the conductive terminal 2 from rotating within the terminal slot 13. A contact spring 22 is bent and extended from the lower edge of the side wall 21 toward the top wall 23, and the bending line M of the bending part where the contact spring 22 connects to the side wall 21 is parallel to the insertion direction N of the docking terminal 5. The contact spring 22 is provided with a second contact portion 2241 protruding toward the top wall 23. When viewed in the up-down direction, the second contact portion 2241 is located between the two first contact portions 231 in the front-to-back direction. The second contact portion 2241 is located between the two first contact portions 231 to balance the upward supporting force of the two first contact portions 231, so that the docking terminal 5 is evenly stressed and ensures that the contact spring 22 can firmly abut the docking terminal 5. The contact spring 22 and the top wall 23 are relatively spaced apart in the up-down direction. The docking terminal 5 is inserted between the contact spring 22 and the top wall 23 in the front-to-back direction. The first contact portion 231 and the second contact portion 2241 are respectively in electrical contact with the upper and lower wall surfaces of the docking terminal 5.The connection between the contact spring 22 and the side wall 21 has a front connection edge 2211 and a rear connection edge 2212, and the second contact portion 2241 is located behind the front connection edge 2211 and in front of the rear connection edge 2212. The lower edge of the side wall 21 behind the rear connection edge 2212 is set as a broken edge and forms an L-shaped structure in cross section with the broken edge of the top wall 23. With less material, the L-shaped structure formed by the top wall 23 and the side wall 21 where the conductive terminal 2 is located behind the rear connection edge 2212 can still have sufficient strength, and at the same time, it can also reduce the weight of the front section of the conductive terminal 2, further improving the problem of the front section of the conductive terminal 2 tilting downward. The contact spring 22 includes a first bent portion 221 extending from the side wall 21 toward the top wall 23. The first bent portion 221 is the bent portion connecting the contact spring 22 to the side wall 21. The first bent portion 221 is disposed vertically opposite the top wall 23. The front and rear edges of the first bent portion 221 are formed as the front connecting edge 2211 and the rear connecting edge 2212, respectively. The first bent portion 221 has a first bending angle α, which is within a range of greater than or equal to 50 degrees and less than or equal to 70 degrees. In this embodiment, the first bending angle α is preferably 60 degrees to facilitate the bending of the first bent portion 221. An inclined portion 222 extends obliquely from the distal end of the first bent portion 221 toward the top wall 23. The angle between the wall surface of the inclined portion 222 and the wall surface of the side wall 21 is greater than 0° and less than 90°. In this embodiment, the angle is 60°. The first bending portion 221 has a first material opening 2213, one side of the first material opening 2213 extends to the side wall 21, and the other side of the first material opening 2213 extends to the inclined portion 222, thereby further reducing the weight of the head of the conductive terminal 2, thereby further improving the problem of the front section of the conductive terminal 2 tilting downward. During the forming process of the first bending portion 221, only the part of the first bending portion 221 that is not hollowed out needs to be bent, making the bending of the first bending portion 221 easier. A second bent portion 223 is bent from the end of the inclined portion 222 toward the side wall 21. The second bent portion 223 is arranged opposite to the side wall 21 in the left and right directions. The second bent portion 223 has a second material opening 2231. The inclined portion 222 is located between the first material opening 2213 and the second material opening 2231. When the docking terminal 5 is inserted between the contact spring 22 and the top wall 23, the force arm formed by the inclined portion 222 and the second bent portion 223 is longer, which reduces fatigue at the first bent portion 221 during the elastic deformation of the first bent portion 221.The second bent portion 223 has a second bending angle β, which is greater than or equal to 45 degrees and less than or equal to 60 degrees. In this embodiment, the first bending angle α is preferably 51 degrees. A free end portion 224 extends from the end of the second bent portion 223 toward the side wall 21. The second contact portion 2241 is a convex bulge protruding from the free end portion 224. The free end portion 224 is spaced apart from and opposite to the top wall 23 in the vertical direction. In this embodiment, the free end portion 224 is a horizontally arranged plate structure, and the free end portion 224 is parallel to the top wall 23. In other embodiments, the free end portion 224 can be an arc-shaped structure formed by bending or a convex bulge structure formed by stamping. As long as it can contact the docking terminal 5, it is not limited here. Since the second bending portion 223 completes the bending step before the first bending portion 221 during the bending forming process, when the first bending portion 221 is bent later, the front and rear sides of the first bending portion 221 are mounted on the jig Q, and the free end portion 224 and the second bending portion 223 enter the avoidance space of the jig Q to facilitate the forming of the first bending portion 221.

[0050] like Figures 13 to 15 As shown, the rear edge of the free end portion 224 is configured as a broken edge. A guide portion 2242 extends forward and obliquely downward from the front end of the free end portion 224. The front end of the guide portion 2242 is located behind the front connecting edge 2211. When the mating terminal 5 is inserted into the conductive terminal 2, the guide portion 2242 guides the mating terminal 5 along the front-to-back direction and inserts it between the top wall 23 and the free end portion 224, ensuring that the mating terminal 5 can be smoothly plugged into the conductive terminal 2. In the front-to-back direction, the distance between the front edge of the free end portion 224 and the rear edge of the free end portion 224, as well as the distance between the front edge of the second bent portion 223 and the rear edge of the second bent portion 223, are both smaller than the distance between the front connecting edge 2211 and the rear connecting edge 2212. The portion of the side wall 21 located behind the rear connection edge 2212 has at least one third opening 211. In this embodiment, four third openings 211 are provided, each with three different opening sizes. The third opening 211 extends from the side wall 21 to the top wall 23, reducing the weight of the head of the conductive terminal 2 and further improving the problem of the front end of the conductive terminal 2 tipping downward. A primary locking spring 212 extends rearward from the side wall 21 to lock with the stepped surface inside the terminal slot 13. The primary locking spring 212 is located on the portion of the side wall 21 behind the rear connection edge 2212.

[0051] like Figure 1 、 Figure 10 、 Figure 13 As shown, a soldering portion 25 is integrally connected to the rear end of the side wall 21 or the top wall 23. The soldering portion 25 is used for soldering to the circuit board P. In this embodiment, the soldering portion 25 extends from the rear end of the side wall 21 and is used for surface soldering to the circuit board P. In other embodiments, the soldering portion 25 may also extend from the rear end of the top wall 23. The soldering portion 25 may also form a plug-in pin that inserts into a conductive through-hole in the circuit board P. This is not limited here. An extension 24 extends rearward and downward from the side wall 21 behind the primary lock spring 212, and the soldering portion 25 is connected to the rear end of the extension 24. Both the soldering portion 25 and the extension 24 are formed into a vertical plate shape by stamping. The extension 24 is larger in the vertical direction than the side wall 21. The addition of the extension 24 to the rear end of the conductive terminal 2 increases the weight of the rear end of the conductive terminal 2, thereby improving the problem of the front end of the conductive terminal 2 tilting downward. The soldering portion 25 includes a first portion 251 extending in the vertical direction and a second portion 252 extending rearward from the lower end of the first portion 251. The bottom end of the second portion 252 is provided with a blanking surface for surface soldering to the circuit board P. A snap-fitting portion 2511 is provided on the front side of the first portion 251. A barb 2511A is provided on the top surface of the snap-fitting portion 2511. The bottom surface of the snap-fitting portion 2511 is flat. The snap-fitting portion 2511 is inserted forward into the engaging slot 112. The barb 2511A interferes with the inner top surface of the engaging slot 112. The bottom surface of the snap-fitting portion 2511 is in close contact with the inner bottom surface of the engaging slot 112. The left and right sides of the snap-fitting portion 2511 are spaced apart from the left and right inner side surfaces of the engaging slot 112. The barb 2511A and the bottom surface of the snap-fitting portion 2511 are connected to each other through the barb 2511A. The inner top surface of the locking groove 112 interferes and forces the bottom surface of the locking portion 2511 to be close to the inner bottom surface of the locking groove 112, thereby making the second part 252 of the welding portion 25 close to the circuit board P, thereby ensuring the flatness of the second part 252 of the welding portion 25. By setting the left and right sides of the locking portion 2511 and the left and right inner side surfaces of the locking groove 112 at intervals, the relative position between the second part 252 of the welding portion 25 and the gold finger of the circuit board P can be adjusted so that they can be aligned and electrically connected.

[0052] like Figure 2 and Figure 3As shown, the plug 3 is installed downward in the rear end opening 111. Since the rear end opening 111 is provided on the base 11 and the base 11 is located on the surface of the circuit board P, the plug 3 is installed in the rear end opening 111 to increase the weight of the base 11, thereby reducing or even preventing the front section of the electrical connector from tipping downward, thereby facilitating the welding of the welding portion 25 to the circuit board P. The plug 3 has a plurality of grooves 31 arranged along the left-right direction, and the plurality of grooves 31 are used to accommodate the extension portions 24 of the plurality of conductive terminals 2 one by one. The front end surface of the plug 3 is stopped at the rear end of the top wall 23 to form a stopping structure to stop the conductive terminal 2 from withdrawing backward from the terminal slot 13. During the process of inserting the docking terminal 5 between the contact spring 22 and the top wall 23, the rear end of the top wall 23 is stopped by the front end surface of the plug 3 to absorb the force transmitted from the front end of the conductive terminal 2, thereby preventing the force from being transmitted to the soldering portion 25 and causing relative movement between the soldering portion 25 and the circuit board P.

[0053] like Figure 2 and Figure 3 As shown, the suction cover 4 is mounted on the top surface of the insulating body 1, making it easier for a user to grasp the electrical connector. The suction cover 4 includes a suction plate 41, at least two latch arms 42 extending downward from the suction plate 41, and a counterweight portion 43 extending downward from the bottom surface of the suction plate 41. The counterweight portion 43 is located behind the locking arm 17 and is spaced apart from the locking arm 17 in the front-to-back direction. At least two of the latch arms 42 are spaced apart in the left-to-right direction. In this embodiment, four latch arms 42 are provided, and the four latch arms 42 are paired in the front-to-back direction to respectively latch into the four latch slots 19 provided on the limiting portion 18. Specifically, two of the latch arms 42 are located on the left side of the locking arm 17 and form a pair in the front-to-back direction, while the other two latch arms 42 are located on the right side of the locking arm 17 and form a pair in the front-to-back direction. The two latch arms 42 on the left side of the locking arm 17 and the two on the right side of the locking arm 17 are symmetrically arranged with respect to the centerline of the suction cover 4. The counterweight 43 is located behind the latch arm 17 and covers the plug 3, further increasing the weight of the rear section of the electrical connector, placing the center of gravity of the electrical connector on the circuit board P. This prevents the front section of the electrical connector from tilting downward and the rear section from tilting upward before the soldering portion 25 is surface-soldered to the circuit board P, which could cause a dry solder joint between the surface-soldered conductive terminals 2 and the circuit board P. The latch arm 42 engages with the corresponding latch slot 19 to secure the electrical connector to the suction cover 4, facilitating transport of the electrical connector by automated equipment.

[0054] In summary, the conductive terminal 2 and the electrical connector of the present invention have the following beneficial effects:

[0055] 1. The conductive terminal 2 includes the side wall 21 extending in the up-down direction and the top wall 23 extending in the left-right direction from the upper edge of the side wall 21. The side of the top wall 23 away from the side wall 21 in the left-right direction is set as a broken edge. The top wall 23 is provided with a first contact portion 231. The contact spring 22 is bent and extended from the lower edge of the side wall 21 toward the top wall 23. The contact spring 22 is provided with a second contact portion 2241 protruding toward the top wall 23. The lower edge of the side wall 21 is set as a broken edge behind the rear connecting edge 2212. The structure of the conductive terminal 2 formed is relatively simple. On this basis, the conductive terminal 2 can be elastically abutted against the docking terminal 5 through the contact spring 22, and the docking terminal can be appropriately adjusted. 5 and the position inserted between the conductive terminal 2 to avoid the direct rigid contact between the docking terminal 5 and the conductive terminal 2, which may cause the contact spring 22 to become fatigued. The setting of the contact spring 22 can absorb the matching deviation with the docking terminal 5. Since the structure of the front section of the conductive terminal 2 is relatively simple, the weight of the front section of the conductive terminal 2 is reduced, so that the center of gravity of the conductive terminal 2 is moved backward, which improves the problem of the front section of the conductive terminal 2 being overweight and tilting downward. At the same time, it also avoids the problem of the rear section of the conductive terminal 2 being tilted and causing empty soldering between the welding portion 25 and the circuit board P, so that the electrical connector can be firmly placed on the circuit board P, avoiding the risk of the electrical connector falling to the ground and being damaged before re-soldering.

[0056] 2. The first bending portion 221 has the first discharge opening 2213, one side of the first discharge opening 2213 extends to the side wall 21, and the other side of the first discharge opening 2213 extends to the inclined portion 222, thereby further reducing the weight of the head of the conductive terminal 2, thereby further improving the problem of the front section of the conductive terminal 2 tilting downward. During the forming process of the first bending portion 221, only the part of the first bending portion 221 that is not hollowed out needs to be bent, making the bending of the first bending portion 221 easier.

[0057] 3. The portion of the side wall 21 located behind the rear connection edge 2212 has the third discharge opening 211, and the second discharge opening 2231 extends from the side wall 21 to the top wall 23, reducing the weight of the head of the conductive terminal 2 and further improving the problem of the front section of the conductive terminal 2 tilting downward.

[0058] 4. The first groove portion 14 is recessed downward from the bottom surface of the terminal groove 13, and the second groove portion 15 is recessed from one of the side surfaces of the terminal groove 13 along the left and right directions. The broken edge limit of the side wall 21 is located at the first groove portion 14, and the broken edge limit of the top wall 23 is located at the second groove portion 15, thereby constraining the freedom of the conductive terminal 2 in the up and down directions and the left and right directions, effectively preventing the conductive terminal 2 from rotating in the terminal groove 13.

[0059] 5. The base 11 has the rear end opening 111, and the plug 3 is installed downwardly in the rear end opening 111. Since the rear end opening 111 is provided on the base 11 and the base 11 is located on the surface of the circuit board P, the plug 3 is installed in the rear end opening 111 to increase the weight of the base 11, thereby reducing or even preventing the front section of the electrical connector from tipping downward, thereby facilitating the soldering of the soldering portion 25 to the circuit board P. The plug 3 has a plurality of grooves 31 arranged along the left-right direction, and the plurality of grooves 31 are used to accommodate the extension portions 24 of the plurality of conductive terminals 2 one by one. The front end surface of the plug 3 is stopped at the rear end of the top wall 23 to form a stopping structure to stop the conductive terminal 2 from withdrawing backward from the terminal slot 13. During the process of inserting the docking terminal 5 between the contact spring 22 and the top wall 23, the rear end of the top wall 23 is stopped by the front end surface of the plug 3 to absorb the force transmitted from the front end of the conductive terminal 2, thereby preventing the force from being transmitted to the soldering portion 25 and causing relative movement between the soldering portion 25 and the circuit board P.

[0060] 6. The suction cover 4 includes the suction plate 41, the latch arm 42 extending downward from the bottom surface of the suction plate 41, and the counterweight portion 43 extending downward from the bottom surface of the suction plate 41. The counterweight portion 43 is located behind the latch arm 17 and covers the plug 3, further increasing the weight of the rear section of the electrical connector, so that the center of gravity of the electrical connector is located in the area directly opposite the circuit board P. Before the soldering portion 25 is surface-soldered to the circuit board P, it prevents the front section of the electrical connector from tilting downward and the rear section of the electrical connector from tilting upward, which would cause a dry solder joint between the surface-soldered conductive terminal 2 and the circuit board P. The latch arm 42 engages with the latch groove 19 to secure the suction cover 4 to the electrical connector, facilitating the transport of the electrical connector by automated equipment.

[0061] The above detailed description is only an illustration of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this invention are included in the patent scope of this invention.

Claims

1. A conductive terminal for connecting to a mating terminal, characterized in that: include: The hook at the top of the hook at the bottom of the hook at the elongated tab is formed on a pair of sliding tabs, the hook at the bottom of the hook at the top of the hook at a moment's notice.

2. The conductive terminal according to claim 1, wherein: The contact spring includes a first bent portion extending from the side wall toward the top wall, the front and rear edges of the first bent portion are respectively formed as the front connecting edge and the rear connecting edge, an inclined portion extends obliquely from the end of the first bent portion toward the top wall, a second bent portion is bent from the end of the inclined portion toward the side wall, a free end portion extends from the end of the second bent portion toward the side wall, and the second contact portion is arranged on the free end portion.

3. The conductive terminal according to claim 2, wherein: The rear edge of the free end is configured as a broken edge, and a guide portion extends forward and obliquely downward from the front end of the free end. The guide portion is used to guide the docking terminal to be inserted between the top wall and the free end along the front-to-back direction, and the front end of the guide portion is located behind the front connecting edge.

4. The conductive terminal according to claim 2, wherein: The first bending portion has a first material discharge opening, one side of which extends to the side wall, the second bending portion has a second material discharge opening, the inclined portion is located between the first material discharge opening and the second material discharge opening, and the side wall portion located behind the rear connecting edge has at least one third material discharge opening, and the third material discharge opening extends to the top wall.

5. The conductive terminal according to claim 2, wherein: In the front-to-back direction, the distance between the front edge of the second bent portion and the rear edge of the second bent portion and the distance between the front edge of the free end portion and the rear edge of the free end portion are both smaller than the distance between the front connecting edge and the rear connecting edge, the free end portion is parallel to the top wall, and the second contact portion is a convex bulge protruding from the free end portion.

6. The conductive terminal according to claim 2, wherein: The first bending portion has a first bending angle, the range of the first bending angle is greater than or equal to 50 degrees and less than or equal to 70 degrees, and the second bending portion has a second bending angle, the range of the second bending angle is greater than or equal to 45 degrees and less than or equal to 60 degrees.

7. The conductive terminal according to claim 1, wherein: An extension portion extends backward and downward from the rear end of the side wall and the welding portion is connected to the rear end of the extension portion. The welding portion and the extension portion are both formed into a vertical plate shape by stamping and blanking. The size of the extension portion in the up and down directions is larger than the size of the side wall in the up and down directions. The blanking surface at the bottom end of the welding portion is used for welding to the circuit board.

8. An electrical connector, wherein the front end of the electrical connector is used for inserting a mating terminal of a mating connector, and the rear end of the electrical connector is used for being placed on a circuit board, characterized in that: include An insulating body, the insulating body having a base portion disposed on the surface of the circuit board and a plug portion extending forward from the base portion and located outside the circuit board, the base portion having a larger left-right dimension than the plug portion, a plurality of terminal slots extending from the base portion toward the plug portion, the plurality of terminal slots being arranged in a row along the left-right direction; 18. The electrical connector of claim 17, wherein the at least one electrically conductive portion of the at least one conductive portion is secured to a position adjacent to the top of the at least one conductive portion and wherein the at least one conductive portion is secured to a position adjacent to the top of the at least one conductive portion.

9. The electrical connector according to claim 8, wherein: The contact spring includes a first bent portion extending from the side wall toward the top wall, the first bent portion being the bent portion where the contact spring is connected to the side wall, the front and rear edges of the first bent portion being respectively formed as a front connecting edge and a rear connecting edge connected to the side wall, the first contact portion being closer to the front than the rear connecting edge, an inclined portion extending obliquely from the end of the first bent portion toward the top wall, a second bent portion being bent from the end of the inclined portion toward the side wall, a free end portion extending from the end of the second bent portion toward the side wall, and the second contact portion being arranged on the free end portion.

10. The electrical connector according to claim 9, wherein: The free end portion is parallel to the top wall, two first contact portions are protruding from the top wall, and both first contact portions are convex hulls. A second contact portion is protruding from the free end portion, and the second contact portion is a convex hull. When viewed in the up and down direction, the second contact portion is located between the two first contact portions.

11. The electrical connector according to claim 8, wherein: A first groove portion is recessed downward from the bottom surface of the terminal groove, and a second groove portion is recessed from one side surface of the terminal groove along the left and right directions. The side wall is limited to the first groove portion, and the top wall is limited to the second groove portion.

12. The electrical connector according to claim 11, wherein: There is a partition wall between the two adjacent terminal slots on the left and right, and a notch is recessed on the broken edge of the rear end of the top wall of each conductive terminal along the left and right directions toward the side away from the partition wall. The notch and the partition wall are arranged relative to each other in the left and right directions to increase the creepage path between the conductive terminals accommodated in the two adjacent terminal slots on the left and right.

13. The electrical connector according to claim 8, wherein: A one-time locking spring extends backward from the side wall to lock with the step surface on the inner side of the terminal slot, an extension portion and the welding portion connected to the rear end of the extension portion extend backward and downward from the side wall behind the one-time locking spring, the base has a rear end opening, a plug is downwardly installed in the rear end opening, the plug has a plurality of grooves arranged along the left and right directions to accommodate the extension portions of a plurality of the conductive terminals one by one, and the front end face of the plug is blocked at the rear end of the top wall.

14. The electrical connector according to claim 13, wherein: A locking arm extends backward from the front end of the top surface of the insulating body, and a limiting portion is protruded upward on the top surface of the insulating body, and the limiting portion spans above the free end of the locking arm, and the limiting portion is recessed with at least two buckle grooves on the left and right sides of the locking arm. The electrical connector also includes a suction cover, which includes a suction plate, at least two buckle arms extending downward from the suction plate and arranged at intervals in the left and right directions, and a counterweight portion extends downward from the bottom surface of the suction plate, and the counterweight portion is located at the rear of the locking arm, the buckle arm is buckled in the corresponding buckle groove, and the counterweight portion cover is arranged above the plug.

15. The electrical connector according to claim 8, wherein: The welding portion includes a first portion extending in the up-down direction and a second portion extending backward from the lower end of the first portion to be surface-welded to the circuit board. A clamping portion is protruded forward on the front side surface of the first portion, a barb is protruded on the top surface of the clamping portion, and the bottom surface of the clamping portion is a flat surface. A clamping groove is concavely provided forward from the rear end of the base. The clamping portion is inserted forward into the clamping groove, the barb interferes with the inner top surface of the clamping groove, the bottom surface of the clamping portion is tightly against the inner bottom surface of the clamping groove, and the left and right sides of the clamping portion are spaced apart from the left and right inner side surfaces of the clamping groove.

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