Conductive terminal and connector

Abstract

The utility model relates to a kind of electrically conductive terminal and connector, and connector includes shell and multiple electrically conductive terminals;Electrically conductive terminal includes butt joint part and guide connection part;The side of butt joint part is equipped with the contact spring arm and the load sharing spring arm extending inward and towards, and the other side of butt joint part is inwardly provided with at least one contact point;Contact spring arm includes sequentially connected bending section, buffer section, inclined section and contact section, load sharing spring arm includes sequentially connected bending section, gentle section, oblique section and stop section, stop section is stopped in the side of contact section away from contact point, and the projection of contact point at least partially overlaps with buffer section or gentle section.By adding buffer section between bending section and inclined section to absorb pressure, gentle section is added between bending section and oblique section to absorb pressure, improve the load bearing strength of contact spring arm and load sharing spring arm, and load sharing spring arm can share the load borne by contact spring arm, avoid contact spring arm elastic fatigue, improve the stability of electrically conductive joint between contact spring arm and butt joint terminal.

Description

[Technical Field]

[0001] This utility model relates to the field of conductive terminals and connectors, and in particular to a conductive terminal and connector for improving the stability of the conductive connection between the contact spring arm and the mating terminal. [Background Technology]

[0002] When connectors used in automobiles are combined with mating connectors, the conductive terminals inside the connector are generally provided with cylindrical mating parts that interlock with the pin terminals inside the mating connector to achieve a stable mating effect.

[0003] When a pin is inserted into a conductive terminal, the internal mechanical and electrical structure of the conductive terminal ensures a reliable electrical connection between the conductive terminal and the pin. Existing conductive terminals typically employ a strip-shaped contact spring arm extending inward from one side wall of the mating portion. This contact spring arm elastically deforms relative to the wall, providing positive pressure at the pin's contact point, thus ensuring stable contact and stable signal or current transmission. However, while applying pressure to the pin, the contact spring arm is also subjected to a reaction load. This load is concentrated at the connection point between the contact spring arm and the wall. After repeated insertion and removal of the pin and conductive terminal, the contact spring arm fatigues due to this concentrated load, preventing it from returning to its original position. When the pin is reinserted into the mating portion of the conductive terminal, the deformation of the contact spring arm decreases, reducing the positive pressure exerted by the spring arm at the pin's contact point. Consequently, the stability of the conductive connection deteriorates, and electrical conduction may even fail. [Utility Model Content]

[0004] To address the problems encountered in the background technology, the present invention aims to provide a conductive terminal and connector. The conductive terminal has contact spring arms and load-sharing spring arms arranged facing each other within its mating portion. Each contact spring arm includes a sequentially connected bending section, buffer section, inclined section, and contact section. Each load-sharing spring arm includes a sequentially connected bending section, smooth section, inclined section, and stop section. The buffer section absorbs the pressure exerted by the mating terminal on the contact spring arm, improving its load-bearing strength. Similarly, the smooth section added between the bending and inclined sections of the load-sharing spring arm also absorbs the pressure borne by the load-sharing spring arm. Furthermore, the stop section is located on the side of the contact section away from the contact point, allowing the load-sharing spring arm to share a portion of the load on the contact spring arm, thereby improving its load-bearing strength and preventing elastic fatigue of the contact spring arm during repeated insertion and removal of the mating terminal. This solves the problem of decreased stability of the conductive connection caused by elastic fatigue of the contact spring arm.

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

[0006] A conductive terminal for engaging a mating terminal, the conductive terminal having intersecting first and second directions, characterized in that the conductive terminal comprises:

[0007] The mating portion has a socket at one end in a first direction for inserting a mating terminal into it along the first direction. The mating portion has an inwardly extending contact arm and a load-distributing arm on one side in a second direction, and at least one contact point protruding inwardly on the opposite side in the second direction. The contact arm includes a bent section, a buffer section, an inclined section, and a contact section connected in sequence. The load-distributing arm includes a bent section, a smooth section, an inclined section, and a stop section connected in sequence. The stop section stops at the side of the contact section away from the contact point. At least a portion of the projection of the contact point along the second direction overlaps with the buffer section or the smooth section.

[0008] A guide portion is connected to the side of the mating portion away from the socket.

[0009] In one embodiment, the contact point overlaps with the buffer segment along a second direction, and the length of the buffer segment in the first direction is less than the length of the smooth segment in the first direction.

[0010] In one embodiment, the angle between the inclined segment and the buffer segment is greater than the angle between the sloping segment and the gentle segment.

[0011] In one embodiment, the conductive terminal further has a third direction, wherein the first direction, the second direction, and the third direction intersect each other;

[0012] In the third direction, the width of the buffer section and the inclined section gradually decreases from the bending section to the contact section, and the width of the contact section is greater than the width of the inclined section; in the third direction, the width of the flat section, the inclined section and the stopping section of the load-bearing arm gradually decreases from the bending section to the stopping section.

[0013] In one embodiment, there are two contact points, one of which has a projection along the second direction that overlaps with the buffer section, and the other has a projection along the second direction that overlaps with the smooth section. Each contact point has a guide surface on the side facing the socket, and the stop section and the contact section are stacked and located between the two contact points along the first direction.

[0014] In one embodiment, the docking portion includes a first wall surface, a second wall surface and a third wall surface arranged opposite to each other on both sides of the first wall surface, a fourth wall surface bent from the second wall surface to the third wall surface, and a fifth wall surface bent from the third wall surface to the second wall surface. The fifth wall surface is located on the side of the fourth wall surface away from the first wall surface. The contact point protrudes from the first wall surface, the contact spring arm is connected to the fourth wall surface, and the load-distribution spring arm is connected to the fifth wall surface.

[0015] In one embodiment, in the second direction, the distance between the smooth section and the first wall is greater than the distance between the buffer section and the first wall.

[0016] In one embodiment, the fifth wall includes a front extension wall and a rear extension wall spaced apart in a first direction, the front extension wall being stacked on the side of the fourth wall away from the first wall, the bent section of the contact spring arm being connected to the fourth wall, and the bent section of the load-distributing spring arm being connected to the rear extension wall.

[0017] The docking part further includes a primary locking structure connected to the front extension wall. The primary locking structure is an n-shaped structure bent on the side of the front extension wall away from the fourth wall surface. A reinforcing rib is provided at the connection between the primary locking structure and the front extension wall. A part of the reinforcing rib extends to the primary locking structure and the other part extends to the front extension wall.

[0018] In one embodiment, the mating portion includes a first wall surface with the contact point protruding therefrom and a third wall surface formed by bending from the first wall surface. A window is provided at the junction of the first wall surface and the third wall surface, and the contact segment and / or the blocking segment are at least partially exposed in the window.

[0019] A connector, including

[0020] A housing, wherein the housing is provided with a plurality of receiving cavities; and

[0021] Multiple conductive terminals are respectively installed in the corresponding receiving cavities, and the conductive portion of each conductive terminal is used to electrically connect a cable or a flat conductor.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The mating section is provided with contact spring arms and load-sharing spring arms extending in opposite directions. The contact spring arms include a bent section, a buffer section, an inclined section, and a contact section connected in sequence. By setting a buffer section between the bent section and the inclined section, the buffer section can absorb part of the pressure when the contact spring arm is subjected to pressure applied by the mating terminal, thereby dispersing the internal stress of the contact spring arm and improving the load-bearing strength of the contact spring arm. The load-sharing spring arm includes a bent section, a smooth section, an inclined section, and a stop section connected in sequence. Similarly, the smooth section added between the bent section and the inclined section of the load-sharing spring arm can also absorb the pressure borne by the load-sharing spring arm and disperse the internal stress of the load-sharing spring arm. Moreover, the stop section is located on the side of the contact section away from the contact point, so that the load-sharing spring arm can further share the load borne by the contact spring arm, further improving the load-bearing strength of the contact spring arm, avoiding elastic fatigue of the contact spring arm during repeated insertion and removal of the mating terminal, and ensuring that the pressure of the contact spring arm acting on the mating terminal does not decrease with the increase of insertion and removal times, thereby improving the stability of the conductive connection between the contact spring arm and the mating terminal. Furthermore, the projection of the contact point along the second direction at least partially overlaps with the buffer section or the gentle section. During the insertion of the mating terminal into the conductive terminal, the contact point will abut against the mating terminal, causing the mating terminal to tend to shift towards the buffer section. This avoids the contact point's pushing force on the mating terminal being directly transmitted to the contact section, thereby reducing the load borne by the contact section and further ensuring the stability of the conductive connection between the contact spring arm and the mating terminal.

[0024] 2. The length of the buffer section in the first direction is shorter than that of the smooth section in the first direction. This results in the smooth section having a longer lever arm in the first direction than the buffer section. The longer lever arm of the smooth section leads to better flexibility and better absorption of pressure loads. The shorter lever arm of the buffer section indicates a stronger load-bearing capacity of the contact spring arm. Therefore, by using a load-bearing spring arm with a longer lever arm in conjunction with a contact spring arm with a shorter lever arm, sufficient contact force between the contact spring arm and the mating terminal can be ensured, thereby improving the stability of the conductive connection. It can also effectively reduce the insertion and extraction force required to insert the mating terminal into the conductive terminal, thus improving the user experience.

[0025] 3. The angle between the inclined section and the buffer section is greater than the angle between the sloping section and the gentle section, making the inclination of the inclined section gentler than that of the sloping section. When the mating terminal is inserted into the conductive terminal, pressure is applied to the contact section, causing the contact spring arm and the load-bearing spring arm to be lifted. The direction of this pressure is perpendicular to the insertion direction of the mating terminal. Because the inclination of the inclined section is gentler, the component of the pressure along the extension direction of the inclined section is less than the component of the pressure along the extension direction of the sloping section. The sloping section bears more pressure load, thereby reducing the pressure load borne by the inclined section, i.e., the contact spring arm, avoiding elastic fatigue of the contact spring arm, and ensuring the stability of the conductive connection between the contact spring arm and the mating terminal.

[0026] 4. The width of the contact spring arm gradually decreases in the buffer and inclined sections, and the width of the load-distribution spring arm gradually decreases in the flat, inclined, and stop sections. This gradually decreasing width increases the elastic deformation recovery ability of both the contact spring arm and the load-distribution spring arm, ensuring that neither will experience unrecoverable elastic fatigue due to increased insertion and removal cycles. This improves the stability of the conductive connection between the contact spring arm and the conductive terminal when the mating terminal is inserted, as well as the stability of the load-distribution spring arm's support for the contact spring arm. Furthermore, the width of the contact spring arm in the contact section is greater than that in the inclined section, increasing the width of the contact position between the contact spring arm and the mating terminal. This is equivalent to increasing the conductive area and reducing local resistance, thereby preventing overheating at the conductive connection point and ensuring the stability of signal or current transmission between the contact spring arm and the mating terminal.

[0027] 5. In the second direction, the distance between the smooth section and the first wall is greater than the distance between the buffer section and the first wall. When the mating terminal is inserted into the conductive terminal, in addition to applying pressure in the second direction to the contact spring arm, it also applies frictional force in the first direction to the contact spring arm. This frictional force is also transmitted to the load-distribution spring arm through the contact spring arm. Since the distance between the smooth section and the mating terminal is greater, the lever arm length of the frictional force acting on the load-distribution spring arm is greater, making the load-distribution spring arm more flexible in the first direction. This reduces the insertion and extraction force required to insert the mating terminal into the conductive terminal. The load-distribution spring arm with a longer lever arm supports the contact spring arm with a shorter lever arm, ensuring the contact force between the contact spring arm and the mating terminal. At the same time, it reduces the insertion and extraction force required to insert the mating terminal into the conductive terminal, which improves the stability of the conductive connection and enhances the user experience.

[0028] 6. The projection of one contact point overlaps with the buffer section, and the projection of the other contact point overlaps with the smooth section. By setting two contact points and the contact spring arm to contact the mating terminal together, the conductive position between the conductive terminal and the mating terminal can be increased, thereby increasing the transmission path of the signal or current and ensuring the transmission quality of the signal or current. At the same time, the two contact points are set to correspond to the positions of the buffer section and the smooth section respectively, so that the reaction force on the mating terminal will not act directly on the contact section, avoiding an increase in the load on the contact section, thereby protecting the contact spring arm from elastic fatigue due to excessive load and ensuring the stability of the conductive connection between the contact spring arm and the mating terminal. [Attached Image Description]

[0029] Figure 1 This is a schematic diagram of the connector structure according to the first embodiment of the present invention;

[0030] Figure 2 for Figure 1 Exploded view of the connector;

[0031] Figure 3for Figure 2 Schematic diagram of the structure of the conductive terminal;

[0032] Figure 4 for Figure 3 Cross-sectional view at position AA;

[0033] Figure 5 for Figure 3 Front view of the conductive terminal;

[0034] Figure 6 for Figure 5 Cross-sectional view at position BB;

[0035] Figure 7 for Figure 6 A magnified view of a portion of region D within the square frame;

[0036] Figure 8 for Figure 5 A cross-sectional view at the CC position.

[0037] Explanation of reference numerals in the accompanying drawings for specific embodiments:

[0038]

[0039] [Specific Implementation Examples]

[0040] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0046] It should be noted that, according to Figures 1 to 8As shown, in this embodiment of the invention, the X-axis, Y-axis, and Z-axis intersect each other in pairs. For ease of explanation, the first direction is defined as the X-axis, the second direction as the Y-axis, and the third direction as the Z-axis. In this embodiment, the X-axis and Y-axis are coplanar and perpendicular to each other, and the Z-axis is perpendicular to the common plane of the X and Y axes. The first, second, and third directions are mutually perpendicular. Further explanation: the term "parallel" in this application includes not only absolute parallelism but also approximate parallelism as commonly understood in engineering, such as "parallel" referring to an angle of -1° to 1° between lines, lines and surfaces, or surfaces. Similarly, "perpendicular" also includes not only absolute perpendicularity but also approximate perpendicularity as commonly understood in engineering, such as "perpendicular" referring to an angle of 89° to 91° between lines, lines and surfaces, or surfaces. Equal distances or equal angles include not only absolute equality, but also approximate equality as commonly understood in engineering, which means there can be a certain degree of error, such as a tolerance range of -1% to 1%.

[0047] Please see Figures 1 to 8 The connector 1, as described in the first embodiment of this utility model, includes a housing 10 and a plurality of conductive terminals 20 connected to the housing 10. The connector 1 is used to mate with a mating connector 901. The mating connector 901 has mating terminals 91. When the connector 1 and the mating connector 901 are mated, the mating terminals 91 are inserted into the conductive terminals 20. Both the conductive terminals 20 and the mating terminals 91 can engage with external electronic components (not shown) to achieve signal or current transmission between different electronic components. Understandably, the electronic component is a cable, circuit board, flexible ribbon cable, flexible circuit board, or other electronic component.

[0048] Please see Figure 1 and Figure 2 The housing 10 is an insulating component that supports the installation of the conductive terminals 20. The housing 10 is used to mate with the mating connector 901. The mating terminal 91 passes through the housing 10 and is inserted into the conductive terminal 20 to ensure signal or current transmission between the mating terminal 91 and the conductive terminal 20. The housing 10 has multiple receiving cavities 11, each extending along a first direction, and the multiple conductive terminals 20 are respectively installed in their corresponding receiving cavities 11. Understandably, the housing 10 can be injection molded to assemble the conductive terminals 20 into the receiving cavities 11 for snap-fit ​​fixation, or the housing 10 can be directly injection molded to cover and fix the conductive terminals 20. No restrictions are placed on the connection method between the housing 10 and the conductive terminals 20.

[0049] Please see Figures 2 to 8The conductive terminal 20 is used to engage the mating terminal 91. The conductive terminal 20 includes a mating portion 30 and a conductive portion 40 connected to the mating portion 30. The mating portion 30 is generally tubular and extends along a first direction. The mating portion 30 is used for inserting the mating terminal 91 and making conductive engagement with the mating terminal 91. One end of the mating portion 30 in the first direction is provided with a socket 300. The socket 300 communicates with the interior of the mating portion 30 and the receiving cavity 11. The socket 300 is used for inserting the mating terminal 91 into the mating portion 30 along the first direction. In this embodiment, the mating portion 30 is generally rectangular tubular. The mating portion 30 includes a first wall surface 31, a second wall surface 32 and a third wall surface 33 arranged opposite to each other on both sides of the first wall surface 31, a fourth wall surface 34 bent from the second wall surface 32 to the third wall surface 33, and a fifth wall surface 35 bent from the third wall surface 33 to the second wall surface 32. The first wall surface 31 extends in a straight plate shape along the common surface of the first direction and the third direction. The second wall surface 32 and the third wall surface 33 also extend in a straight plate shape along the common surface of the first direction and the second direction. The second wall surface 32 and the third wall surface 33 are arranged opposite each other on both sides of the first wall surface 31 in the third direction. The fourth wall surface 34 and the fifth wall surface 35 are arranged side by side. The fourth wall surface 34 and the fifth wall surface 35 both extend along the common surface of the first direction and the third direction. The fifth wall surface 35 is located on the side of the fourth wall surface 34 away from the first wall surface 31. The first wall surface 31, the second wall surface 32, the third wall surface 33, the fourth wall surface 34 and the fifth wall surface 35 together form the socket 300.

[0050] The docking portion 30 has an inwardly extending contact spring arm 37 and a load-distribution spring arm 38 on one side of the second direction. On the opposite side of the docking portion 30 in the second direction, at least one contact point 39 protrudes inwardly. When the docking terminal 91 passes through the socket 300 and is inserted into the docking portion 30, both the contact point 39 and the contact spring arm 37 make contact with the docking terminal 91, forming a multi-point connected transmission path to ensure the quality of signal or current transmission. In this embodiment, the contact point 39 protrudes from the first wall surface 31, the contact spring arm 37 is connected to the fourth wall surface 34, and the load-distribution spring arm 38 is connected to the fifth wall surface 35. The fifth wall 35 includes a front extension wall 351 and a rear extension wall 352 spaced apart in a first direction. The front extension wall 351 is stacked on the side of the fourth wall 34 away from the first wall 31. The length of the front extension wall 351 in the first direction is greater than the length of the fourth wall 34 in the first direction. The contact spring arm 37 is connected to the end of the fourth wall 34 near the rear extension wall 352. The contact spring arm 37 extends obliquely towards the first wall 31 along the direction from the front extension wall 351 to the rear extension wall 352. The load-distributing spring arm 38 is connected to the rear extension wall 352 near the fourth wall 31. At one end of the wall 34, the load-sharing spring arm 38 extends at an angle towards the first wall 31 from the rear extension wall 352 to the front extension wall 351. The end of the contact spring arm 37 away from the fourth wall 34 is an elastic free end, and the end of the load-sharing spring arm 38 away from the rear extension wall 352 is an elastic free end. The elastic free end of the load-sharing spring arm 38 stops on the side of the elastic free end of the contact spring arm 37 away from the first wall 31, so as to improve the load-bearing capacity of the contact spring arm 37, prevent the elastic fatigue of the contact spring arm 37, and improve the stability of the conductive connection between the contact spring arm 37 and the mating terminal 91. Furthermore, the docking portion 30 also includes a primary locking structure 36 connected to the front extension wall 351. The primary locking structure 36 is bent in an n-shape on the side of the front extension wall 351 away from the fourth wall surface 34. The rear side of the primary locking structure 36 is used to block the inner wall of the receiving cavity 11, thereby preventing the conductive terminal 20 inserted into the receiving cavity 11 from coming out. The primary locking structure 36 serves to lock the conductive terminal 20 in the receiving cavity 11. A reinforcing rib 360 is provided at the connection between the primary locking structure 36 and the front extension wall 351. A part of the reinforcing rib 360 extends to the wall surface of the primary locking structure 36, and another part of the reinforcing rib 360 extends to the front extension wall 351. The reinforcing rib 360 is formed by stamping, that is, the reinforcing rib 360 is concave when viewed from the outside and convex when viewed from the opposite inside. The reinforcing rib 360 improves the structural strength of the bend between the primary locking structure 36 and the front extension wall 351, thereby improving the stability of locking the conductive terminal 20 in the receiving cavity 11. In this embodiment, multiple reinforcing ribs 360 are provided, and each reinforcing rib 360 is arranged at intervals along the first direction.

[0051] The contact spring arm 37 includes a bent section 371, a buffer section 372, an inclined section 373, and a contact section 374 connected in sequence. The bent section 371 is connected to the fourth wall surface 34 and bends from the fourth wall surface 34 towards the first wall surface 31. The buffer section 372 is connected to the side of the bent section 371 away from the fourth wall surface 34 and is approximately parallel to the first wall surface 31. The inclined section 373 is connected to the side of the buffer section 372 away from the bent section 371 and bends from the buffer section 372 towards the first wall surface 31. The contact section 374 is connected to the side of the inclined section 373 away from the buffer section 372. Contact segment 374 is used to make contact with mating terminal 91 for conduction. When mating terminal 91 is inserted into mating part 30, mating terminal 91 will apply pressure to contact segment 374. By providing buffer segment 372 between bending segment 371 and inclined segment 373, buffer segment 372 can absorb part of the pressure, thereby dispersing the internal stress borne by the connection between contact spring arm 37 and fourth wall surface 34, improving the load-bearing strength of contact spring arm 37, avoiding elastic fatigue of contact spring arm 37, and improving the stability of conductive connection between contact spring arm 37 and mating terminal 91. It can be understood that the bending segment 371, buffer segment 372, inclined segment 373 and contact segment 374 extend in different directions. In order to connect the bending segment 371, buffer segment 372, inclined segment 373 and contact segment 374 sequentially into one piece, an arc segment is provided between adjacent segments for connection. The contact spring arm 37 is a one-piece stamped part.

[0052] The loading arm 38 includes a curved section 381, a gentle section 382, ​​an inclined section 383, and a stopping section 384 connected in sequence. The curved section 381 is connected to the rear extension wall 352, and the curved section 381 bends from the rear extension wall 352 toward the first wall surface 31; the smooth section 382 is connected to the side of the curved section 381 away from the rear extension wall 352, and the smooth section 382 is approximately parallel to the first wall surface 31; the inclined section 383 is connected to the side of the smooth section 382 away from the curved section 381, and the inclined section 383 bends from the smooth section 382 toward the first wall surface 31; the stop section 384 is connected to the side of the inclined section 383 away from the smooth section 382, ​​and the stop section 384 is located on the side of the contact section 374 away from the contact point 39. When the mating terminal 91 is inserted into the mating part 30, the mating terminal 91 will lift the contact section 374, causing the contact section 374 to contact the stop section 384. The 84 support is placed on the side of the contact section 374 away from the mating terminal 91, thereby sharing the pressure borne by the contact section 374. At the same time, the load-sharing spring arm 38 can also absorb the pressure borne by the load-sharing spring arm 38 by adding a gentle section 382 between the curved section 381 and the inclined section 383, dispersing the internal stress of the load-sharing spring arm 38, thereby improving the load-sharing spring arm 38's ability to withstand pressure loads. The load-sharing spring arm 38 is mainly used to share the pressure borne by the contact spring arm 37, which is equivalent to improving the load-bearing strength of the contact spring arm 37, avoiding elastic fatigue of the contact spring arm 37 during repeated insertion and removal of the mating terminal 91, ensuring that the pressure of the contact spring arm 37 acting on the mating terminal 91 does not decrease with the increase of insertion and removal times, and improving the stability of the conductive connection between the contact spring arm 37 and the mating terminal 91. Understandably, the bending section 381, the gentle section 382, ​​the sloping section 383 and the stopping section 384 extend in different directions. In order to connect the bending section 381, the gentle section 382, ​​the sloping section 383 and the stopping section 384 into one piece in sequence, an arc-shaped section is provided between adjacent sections for connection. The contact spring arm 37 is an integral stamped part.

[0053] A window 330 is provided at the junction of the first wall surface 31 and the third wall surface 33 of the docking part 30. The window 330 is located at the bend between the first wall surface 31 and the third wall surface 33. The contact section 374 and / or the stop section 384 are at least partially exposed in the window 330. The forming position of the contact section 374 and the stop section 384 can be directly observed through the window 330, that is, whether the stop section 384 is located on the side of the contact section 374 away from the contact point 39, and whether the contact section 374 can abut against the stop section 384 after being lifted. This determines whether the processing of the conductive terminal 20 is qualified. By opening the window 330 to directly observe the contact section 374 and the stop section 384, the detection efficiency of whether the processing of the contact spring arm 37 and the loading spring arm 38 is qualified is improved.

[0054] The length of the buffer section 372 in the first direction is less than the length of the smooth section 382 in the first direction. The longer the length, the longer the lever arm. That is, the lever arm of the smooth section 382 in the first direction is greater than that of the buffer section 372 in the first direction. The longer the lever arm of the smooth section 382, ​​the better the flexibility and the better it can absorb pressure loads. The shorter lever arm of the buffer section 372 means that the contact spring arm 37 has a stronger load-bearing capacity. While having a strong load-bearing capacity, it can also ensure the positive pressure at the contact position with the mating terminal 91, thereby ensuring the stability of the conductive connection. By using the longer-lever-arm load-bearing spring arm 38 in conjunction with the shorter-lever-arm contact spring arm 37, it is possible to ensure sufficient contact force between the contact spring arm 37 and the mating terminal 91, thereby improving the stability of the conductive connection. It can also effectively reduce the insertion and extraction force required to insert the mating terminal 91 into the conductive terminal 20, thereby improving the user experience.

[0055] The distance between the smooth section 382 and the first wall surface 31 is greater than the distance between the buffer section 372 and the first wall surface 31. When the mating terminal 91 is inserted into the mating part 30, it will apply pressure to the contact section 374 in the second direction and also apply friction to the contact section 374 in the first direction. This friction will also be transmitted to the load-distribution spring arm 38 through the contact spring arm 37. Since the distance between the smooth section 382 and the mating terminal 91 is larger, the lever arm length of the friction force acting on the load-distribution spring arm 38 is larger, making the load-distribution spring arm 38 more flexible in the first direction. This reduces the insertion and extraction force required to insert the mating terminal 91 into the conductive terminal 20. The load-distribution spring arm 38 with a longer lever arm supports the contact spring arm 37 with a shorter lever arm, ensuring the contact force between the contact spring arm 37 and the mating terminal 91. At the same time, it reduces the insertion and extraction force required to insert the mating terminal 91 into the conductive terminal 20, which improves the stability of the conductive connection and the user experience.

[0056] The angle between the inclined section 373 and the buffer section 372 is greater than the angle between the sloping section 383 and the gentle section 382. The angle between the inclined section 373 and the buffer section 372 is an obtuse angle greater than 90 degrees, and the angle between the sloping section 383 and the gentle section 382 is also an obtuse angle greater than 90 degrees. Since both the buffer section 372 and the gentle section 382 are approximately parallel to the first wall surface 31, the larger the angle between the inclined section 373 and the sloping section 383, the gentler the inclination. That is, the inclination of the inclined section 373 is gentler than that of the sloping section 383. During the insertion of the mating terminal 91 into the mating part 30, the contact section 374 bears the pressure applied by the mating terminal 91 in the second direction, and the blocking section 38... 4. The stop section 384 and the contact section 374 are abutted against and lifted by the docking terminal 91. The pressure on the stop section 384 and the contact section 374 in the second direction is equal. The tilting posture of the inclined section 373 is gentler than that of the inclined section 383. The gentler the tilting posture, the smaller the pressure component in the extension direction. That is, the pressure component in the extension direction along the inclined section 373 is less than the pressure component in the extension direction along the inclined section 383. Therefore, the pressure load on the inclined section 373 is less than that on the inclined section 383. The pressure load on the contact spring arm 37 is even smaller, which avoids elastic fatigue of the contact spring arm 37 and improves the stability of the conductive connection between the contact spring arm 37 and the docking terminal 91.

[0057] In the third direction, the widths of the buffer section 372 and the inclined section 373 of the contact spring arm 37 gradually decrease from the bending section 371 towards the contact section 374; similarly, in the third direction, the widths of the flat section 382, ​​the inclined section 383, and the stopping section 384 of the load-sharing spring arm 38 gradually decrease from the bending section 381 towards the stopping section 384. This gradual decrease in width between the contact spring arm 37 and the load-sharing spring arm 38 increases their ability to recover from elastic deformation. Consequently, neither the contact spring arm 37 nor the load-sharing spring arm 38 will experience unrecoverable elastic fatigue deformation due to increased insertion and removal cycles. This improves the stability of the conductive connection between the contact spring arm 37 and the conductive terminal 91 when the mating terminal 91 is inserted into the conductive terminal 20, as well as the stability of the load-sharing spring arm 38's support for the contact spring arm 37. In this embodiment, the width of the contact segment 374 is greater than the width of the inclined segment 373. The contact segment 374 is used to make contact and conduct electricity with the mating terminal 91. Increasing the width of the contact segment 374 can increase the contact area with the mating terminal 91, thereby reducing local resistance, preventing overheating at the conductive joint between the contact spring arm 37 and the mating terminal 91, and ensuring the stability of signal or current transmission between the contact spring arm 37 and the mating terminal 91. Understandably, since a layer of oxide with high resistance will form on the outer surface of the mating terminal 91 when in contact with air, a protrusion is stamped on the contact segment 374 in order to better break through the oxide layer. The protrusion presses against the mating terminal 91 to increase the local pressure between the protrusion and the mating terminal 91, making it easier to break through the surface oxide layer with high resistance and achieve metal-to-metal contact, thereby reducing resistance and improving the stability of signal or current transmission. Increasing the width of the contact segment 374 in the third direction can ensure the stamping process of the protrusion and avoid cracking or damage to the contact segment 374 during the stamping process.

[0058] The contact point 39 protrudes from the first wall surface 31. The projection of the contact point 39 along the second direction at least partially overlaps with the buffer section 372 or the gentle section 382. The contact spring arm 37 is used to contact the side of the docking terminal 91 near the fourth wall surface 34. The contact point 39 is used to contact the side of the docking terminal 91 near the first wall surface 31. During the insertion of the docking terminal 91 into the docking part 30, the contact point 39 abuts against the docking terminal 91, causing the docking terminal 91 to tend to shift towards the buffer section 372. This avoids the pushing force of the contact point 39 on the docking terminal 91 being directly transmitted to the contact section 374, thereby reducing the load borne by the contact section 374 and improving the stability of the conductive connection between the contact spring arm 37 and the docking terminal 91. In this embodiment, multiple contact points 39 are provided. At least a portion of the projection of at least one contact point 39 along the second direction overlaps with the buffer section 372, and at least a portion of the projection of at least another contact point 39 along the second direction overlaps with the smooth section 382. This ensures that at least two contact points 39 are respectively positioned corresponding to the buffer section 372 and the smooth section 382, ​​preventing the pushing force of the contact point 39 on the mating terminal 91 from being directly transmitted to the contact section 374, while increasing the conductive loop between the conductive terminal 20 and the mating terminal 91, thereby improving the stability of signal or current transmission. Specifically, two contact points 39 are provided. One contact point 39 partially overlaps with the buffer section 372 along the second direction, and the other contact point 39 partially overlaps with the smooth section 382 along the second direction. The blocking section 384 and the contact section 374 are stacked and located between the two contact points 39 along the first direction.

[0059] Each contact point 39 has a guide surface 390 on the side facing the socket 300. This guide surface 390 extends gradually towards the contact spring arm 37 from the mating portion 30 towards the connecting portion 40. The guide surface 390 guides the mating terminal 91 during insertion into the mating portion 30, thus protecting the contact point 39 from scratches during insertion. In this embodiment, in the second direction, the buffer portion overlaps with the guide surface 390 of one of the contact points 39. In other embodiments, the buffer portion may overlap with the abutment surface behind the guide surface 390, or both the buffer portion and the guide surface 390 and the abutment surface may overlap. The connecting portion 40 is located on the side of the mating portion 30 away from the socket 300. The connecting portion 40 of each conductive terminal 20 is used to electrically connect a cable or flat conductor to ensure the transmission of signals or current to the cable or flat conductor and then to the outside world. Understandably, the conductive part 40 can be fixed by piercing the cable or flat conductor and then riveting it, or the conductive part 40 can be directly riveted to the conductive area of ​​the cable or flat conductor, or the conductive part 40 can be welded to the conductive area of ​​the cable or flat conductor. The connection method of the conductive part 40 to the cable or flat conductor is not specifically limited here, as long as the conductive part 40 can be electrically connected to the cable or flat conductor to realize the normal transmission of signal or current.

[0060] In summary, this utility model provides a conductive terminal 20 and a connector 1, which have the following advantages compared with the prior art:

[0061] 1. The docking part 30 is provided with a contact spring arm 37 and a load-sharing spring arm 38 extending in opposite directions. The contact spring arm 37 includes a bent section 371, a buffer section 372, an inclined section 373, and a contact section 374 connected in sequence. By providing a buffer section 372 between the bent section 371 and the inclined section 373, the buffer section 372 can absorb part of the pressure when the contact spring arm 37 is subjected to pressure applied by the docking terminal 91, thereby dispersing the internal stress of the contact spring arm 37 and improving the load-bearing strength of the contact spring arm 37. The load-sharing spring arm 38 includes a bent section 381, a gentle section 382, ​​an inclined section 383, and a stop section 384 connected in sequence. Similarly, the bent section 371 of the load-sharing spring arm 38... The addition of a gentle section 382 between the curved section 381 and the inclined section 383 can also absorb the pressure borne by the load-sharing spring arm 38 and disperse the internal stress of the load-sharing spring arm 38. Moreover, the stop section 384 is located on the side of the contact section 374 away from the contact point 39, so that the load-sharing spring arm 38 can further share the load borne by the contact spring arm 37, further improve the load-bearing strength of the contact spring arm 37, avoid the contact spring arm 37 from elastic fatigue during the repeated insertion and removal of the mating terminal 91, and ensure that the pressure of the contact spring arm 37 acting on the mating terminal 91 does not decrease with the increase of the number of insertion and removal, thereby improving the stability of the conductive connection between the contact spring arm 37 and the mating terminal 91. Furthermore, the projection of the contact point 39 along the second direction at least partially overlaps with the buffer section 372 or the smooth section 382. During the insertion of the mating terminal 91 into the conductive terminal 20, the contact point 39 will abut against the mating terminal 91, causing the mating terminal 91 to tend to shift towards the buffer section 372. This avoids the pushing force of the contact point 39 on the mating terminal 91 being directly transmitted to the contact section 374, thereby reducing the load borne by the contact section 374 and further ensuring the stability of the conductive connection between the contact spring arm 37 and the mating terminal 91.

[0062] 2. The length of the buffer section 372 in the first direction is less than that of the smooth section 382 in the first direction, which makes the lever arm length of the smooth section 382 in the first direction greater than that of the buffer section 372 in the first direction. The longer lever arm length of the smooth section 382 results in better flexibility and better absorption of pressure loads. The shorter lever arm length of the buffer section 372 means that the contact spring arm 37 has a stronger load-bearing capacity. Therefore, by using the longer lever arm of the load-bearing spring arm 38 in conjunction with the shorter lever arm of the contact spring arm 37, sufficient contact force between the contact spring arm 37 and the mating terminal 91 can be ensured, thereby improving the stability of the conductive connection. At the same time, the insertion and extraction force required to insert the mating terminal 91 into the conductive terminal 20 can also be effectively reduced, improving the user experience.

[0063] 3. The angle between the inclined section 373 and the buffer section 372 is greater than the angle between the sloping section 383 and the gentle section 382, ​​making the inclination of the inclined section 373 gentler than that of the sloping section 383. When the mating terminal 91 is inserted into the conductive terminal 20, pressure is applied to the contact section 374, causing the contact spring arm 37 and the load-bearing spring arm 38 to be lifted. The direction of this pressure is perpendicular to the insertion direction of the mating terminal 91. Since the inclination of the inclined section 373 is gentler, the component of the pressure along the extension direction of the inclined section 373 is less than the component of the pressure along the extension direction of the sloping section 383. The sloping section 383 bears more pressure load, thereby reducing the pressure load borne by the inclined section 373, i.e., the contact spring arm 37, avoiding elastic fatigue of the contact spring arm 37, and ensuring the stability of the conductive connection between the contact spring arm 37 and the mating terminal 91.

[0064] 4. The width of the contact spring arm 37 gradually decreases at the buffer section 372 and the inclined section 373. Similarly, the width of the load-sharing spring arm 38 gradually decreases at the flat section 382, ​​the inclined section 383, and the stop section 384. This gradually decreasing width increases the ability of the contact spring arm 37 and the load-sharing spring arm 38 to recover from elastic deformation, ensuring that neither the contact spring arm 37 nor the load-sharing spring arm 38 will experience unrecoverable elastic fatigue due to increased insertion and removal cycles. This improves the stability of the conductive connection between the contact spring arm 37 and the docking terminal 91 when the docking terminal 91 is inserted into the conductive terminal 20, as well as the stability of the support provided by the load-sharing spring arm 38 to the contact spring arm 37. Furthermore, the width of the contact spring arm 37 at the contact section 374 is greater than the width of the inclined section 373, increasing the width of the contact position between the contact spring arm 37 and the docking terminal 91. This increases the conductive area and reduces local resistance, preventing overheating at the conductive connection point and ensuring the stability of signal or current transmission between the contact spring arm 37 and the docking terminal 91.

[0065] 5. In the second direction, the distance between the smooth section 382 and the first wall surface 31 is greater than the distance between the buffer section 372 and the first wall surface 31. When the mating terminal 91 is inserted into the conductive terminal 20, in addition to applying pressure in the second direction to the contact spring arm 37, it also applies frictional force in the first direction to the contact spring arm 37. This frictional force is also transmitted to the load-distribution spring arm 38 through the contact spring arm 37. Since the distance between the smooth section 382 and the mating terminal 91 is greater, the lever arm length of the frictional force acting on the load-distribution spring arm 38 is greater, making the load-distribution spring arm 38 more flexible in the first direction. This reduces the insertion and extraction force required to insert the mating terminal 91 into the conductive terminal 20. The load-distribution spring arm 38 with a longer lever arm supports the contact spring arm 37 with a shorter lever arm, ensuring the contact force between the contact spring arm 37 and the mating terminal 91. At the same time, it reduces the insertion and extraction force required to insert the mating terminal 91 into the conductive terminal 20, thereby improving the stability of the conductive connection and the user experience.

[0066] 6. The projection of one contact point 39 overlaps with the buffer section 372, and the projection of the other contact point 39 overlaps with the smooth section 382. By setting two contact points 39 and the contact spring arm 37 to contact the mating terminal 91 together, the conductive position between the conductive terminal 20 and the mating terminal 91 can be increased, thereby increasing the signal or current transmission path and ensuring the signal or current transmission quality. At the same time, the two contact points 39 are respectively set to correspond to the positions of the buffer section 372 and the smooth section 382, ​​so that the reaction force on the mating terminal 91 will not act directly on the contact section 374, avoiding an increase in the load on the contact section 374, thereby protecting the contact spring arm 37 from elastic fatigue due to excessive load and ensuring the stability of the conductive connection between the contact spring arm 37 and the mating terminal 91.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A conductive terminal for engaging a mating terminal, the conductive terminal having intersecting first and second directions, characterized in that, The conductive terminal includes: The mating portion has a socket at one end in a first direction for inserting a mating terminal into it along the first direction. The mating portion has an inwardly extending contact arm and a load-distributing arm on one side in a second direction, and at least one contact point protruding inwardly on the opposite side in the second direction. The contact arm includes a bent section, a buffer section, an inclined section, and a contact section connected in sequence. The load-distributing arm includes a bent section, a smooth section, an inclined section, and a stop section connected in sequence. The stop section stops at the side of the contact section away from the contact point. At least a portion of the projection of the contact point along the second direction overlaps with the buffer section or the smooth section. A guide portion is connected to the side of the mating portion away from the socket.

2. The conductive terminal according to claim 1, characterized in that, The contact point overlaps with the buffer section along the second direction, and the length of the buffer section in the first direction is less than the length of the smooth section in the first direction.

3. The conductive terminal according to claim 1, characterized in that, The angle between the inclined section and the buffer section is greater than the angle between the sloping section and the gentle section.

4. The conductive terminal according to claim 1, characterized in that, The conductive terminal also has a third direction, with the first direction, the second direction, and the third direction intersecting in pairs; In the third direction, the width of the buffer section and the inclined section gradually decreases from the bending section to the contact section, and the width of the contact section is greater than the width of the inclined section; in the third direction, the width of the flat section, the inclined section and the stopping section of the load-bearing arm gradually decreases from the bending section to the stopping section.

5. The conductive terminal according to claim 1, characterized in that, The contact point has two parts, one of which has a projection along the second direction that overlaps with the buffer section, and the other has a projection along the second direction that overlaps with the smooth section. Each contact point has a guide surface on the side facing the socket. The stop section and the contact section are stacked and located between the two contact points along the first direction.

6. The conductive terminal according to claim 1, characterized in that, The docking part includes a first wall surface, a second wall surface and a third wall surface arranged opposite to each other on both sides of the first wall surface, a fourth wall surface bent from the second wall surface to the third wall surface, and a fifth wall surface bent from the third wall surface to the second wall surface. The fifth wall surface is located on the side of the fourth wall surface away from the first wall surface. The contact point protrudes from the first wall surface. The contact spring arm is connected to the fourth wall surface. The load-distribution spring arm is connected to the fifth wall surface.

7. The conductive terminal according to claim 6, characterized in that, In the second direction, the distance between the smooth section and the first wall is greater than the distance between the buffer section and the first wall.

8. The conductive terminal according to claim 6, characterized in that, The fifth wall includes a front extension wall and a rear extension wall spaced apart in a first direction. The front extension wall is stacked on the side of the fourth wall away from the first wall. The bent section of the contact spring arm is connected to the fourth wall, and the bent section of the load-distributing spring arm is connected to the rear extension wall. The docking part further includes a primary locking structure connected to the front extension wall. The primary locking structure is an n-shaped structure bent on the side of the front extension wall away from the fourth wall surface. A reinforcing rib is provided at the connection between the primary locking structure and the front extension wall. A part of the reinforcing rib extends to the primary locking structure and the other part extends to the front extension wall.

9. The conductive terminal according to claim 1, characterized in that, The docking portion includes a first wall surface with the contact point protruding and a third wall surface formed by bending from the first wall surface. A window is provided at the junction of the first wall surface and the third wall surface, and the contact segment and / or the blocking segment are at least partially exposed in the window.

10. A connector, characterized in that, include A housing having multiple receiving cavities; and A plurality of conductive terminals as described in any one of claims 1 to 9, wherein the plurality of conductive terminals are respectively installed in the corresponding receiving cavity, and the conductive portion of each conductive terminal is used to electrically connect a cable or a flat conductor.

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