Elastic terminal, electrical connector and conductive connection assembly for circuit board

Abstract

This application relates to the technical field of connectors, and more particularly to an elastic terminal, an electrical connector, and a conductive connection assembly for a circuit board. The elastic terminal includes a tubular body having two or more conductive wire strands spaced apart along the circumferential direction of the tubular body. Each conductive wire strand is braided with adjacent conductive wires along a predetermined and identical braiding direction to form a braided layer and enclosed in a cylindrical mesh tube structure. Any two adjacent conductive wire strands are cross-aligned. Each conductive wire strand is elastic. Each end of the mesh tube structure has a conductive contact portion that can abut only one conductive terminal. The elastic terminal can elastically deform in the axial direction and make elastic contact with other conductive terminals, thereby ensuring reliable signal transmission and a long service life. The braiding can be performed by a machine during the production of the tubular body, thereby achieving efficient production and ensuring high product consistency and a high product pass rate, thereby reducing production costs.

Description

[Technical Field]

[0001] The present application is in the technical field of connectors, and more particularly relates to resilient terminals, electrical connectors and conductive connection assemblies for circuit boards. [Background technology]

[0002] Elastic terminals are commonly used conductive components in electrical connectors. Currently, common terminals capable of longitudinal elastic contact mainly include L-shaped or C-shaped cantilever terminals and cylindrical elastic terminals. L-shaped or C-shaped cantilever terminals generally include a body and a cantilever connected to the end of the body, with only the cantilever portion being elastically deformable. If the cantilever is too short, such terminals are prone to yielding under pressure. However, if the cantilever is too long, the transmission path becomes too long, which cannot meet the high-speed performance requirements of low-profile connectors and cannot achieve high-density placement. Cylindrical elastic terminals, such as pogo pins and fuzz buttons, can meet the requirements of low-profile connectors, but they have a complex structure, low processing efficiency, complicated processes, and high costs. Fuzz buttons are manufactured without any rules when winding the wire, which makes the winding process complicated, resulting in low product consistency, low yields, and further increasing production costs. Furthermore, if part of the wire breaks during use, the surrounding wire is simply randomly spliced, which is likely to cause unstable signal transmission. Summary of the Invention [Problem to be solved by the invention]

[0003] The present application aims to provide an elastic terminal to solve the problems of conventional cylindrical elastic terminals, such as a complex structure, low processing efficiency, and high processing costs. The present application also aims to provide an electrical connector to solve the problems of conventional electrical connectors, such as a complex structure of the elastic terminal, low processing efficiency, and high processing costs, which increase the overall cost of the electrical connector. The present application also aims to provide a conductive connection assembly for circuit boards to solve the problem of conventional conductive connection assemblies for circuit boards, such as high costs. [Means for solving the problem]

[0004] The technical solution of the present application is as follows: An elastic terminal, which includes a tubular body including two or more strands of conductive wire spaced apart along the circumferential direction of the tubular body, the conductive wires of each strand being braided with adjacent conductive wires in a predetermined and identical braiding direction to form a braided layer surrounded by a cylindrical mesh tubular structure, any two adjacent strands of conductive wire being cross-matched with each other to immediately separate the two strands after cross-matching, forming a gap, the conductive wires of each strand being elastic, the interior of the mesh tubular structure being a hollow cylindrical structure, and both ends of the mesh tubular structure being provided with conductive contact portions each capable of contacting only one conductive terminal.

[0005] Benefits: This application proposes a novel elastic terminal, whose tubular body has a mesh tubular structure surrounded by a braided layer formed by regularly braiding conductive wires, allowing the elastic terminal to elastically expand and contract in the axial direction, achieving elastic contact with other conductive terminals, and shortening the current transmission path and enabling high-speed transmission. During the production of the tubular body, the conductive wires can be regularly braided by the machine, thereby achieving efficient production and ensuring high product consistency and a high product pass rate, thereby reducing production costs.

[0006] In addition, since the adjacent conductive lines are constrained from each other, the stability is increased and the cable has a strong impact resistance and deformation recovery ability.

[0007] Preferably, the conductive wires of each strand have a wavy structure and extend in a staggered pattern from left to right along the axial direction of the tubular body, with the conductive wires of any two adjacent strands crossing each other by passing through peaks and troughs that are close to each other.

[0008] Benefits: The conductive wires of two adjacent strands cross over each other through the peaks and troughs that are close to each other, ensuring the structural stability of the braided layer and improving the contact performance of each conductive wire, ensuring reliable signal transmission and a long service life for the elastic terminal. The braiding is performed by machine during the production of the tubular body, which achieves efficient production and ensures high product consistency and a high pass rate, thereby reducing production costs.

[0009] Preferably, two or more braided layers are provided, and the plurality of braided layers are stacked along the radial direction of the mesh tubular structure.

[0010] Beneficial effects: On the one hand, the layered installation increases the cross-sectional area of ​​the tubular body and improves its current-passing capacity; on the other hand, the multiple braided layers are constrained to each other in the radial direction, which improves the axial elastic deformation capacity of the tubular body, making it more stable and less likely to be distorted when subjected to axial forces.

[0011] Preferably, the conductive wires of each strand have a helical structure and extend helically along the axial direction of the tubular body, with the conductive wires of any two adjacent strands intersecting with each other.

[0012] Beneficial effects: This braiding method can ensure a dense and stable structure of the formed braided layer, ensuring reliable contact between the conductive wires and stronger impact resistance.

[0013] Preferably, radial convex portions are formed at positions where the conductive wires of each strand intersect, and radial concave portions are formed at positions where they do not intersect, the braided layers are provided in two or more layers, the multiple braided layers are stacked along the radial direction of the mesh tube structure, and adjacent braided layers are stacked alternately so that the radial convex portion formed in one braided layer corresponds to the radial concave portion formed in the braided layer of the adjacent layer.

[0014] Beneficial effects: The corresponding arrangement of the radial convex portions and radial concave portions ensures that adjacent braided layers have a large radial deformation gap, and also ensures that there is sufficient deformation space when the tubular body is pressed, ensuring high axial elastic expansion and contraction deformation capacity. In addition, the tight bonding of the inside and outside of adjacent braided layers prevents distortion when subjected to pressure and better maintains axial stability. Furthermore, this arrangement allows the conductive wires to be arranged more densely, resulting in a higher shielding effect when the elastic terminal is used as a shield terminal.

[0015] By stacking and installing multiple braided layers, on the one hand, the cross-sectional area of ​​the tubular body can be increased, improving its current-passing capacity; on the other hand, the multiple braided layers are constrained to each other in the radial direction, improving the axial elastic deformation ability of the tubular body, making it more stable when subjected to axial forces and less likely to cause distortion.

[0016] Preferably, an end conductive member is provided on each end of the mesh cylindrical structure, and the outer end surface of the end conductive member opposite the mesh cylindrical structure serves as the conductive contact portion.

[0017] Beneficial effects: By fixedly connecting the end conductive members to both ends of the mesh tubular structure and using the end conductive members to make conductive contact with other conductive terminals, on the one hand, it is possible to provide protection for both ends of the mesh tubular structure and avoid a reduction in the service life caused by the ends of the mesh tubular structure coming into direct contact with other conductive terminals and being frequently pressed and deformed, and on the other hand, it is possible to ensure that the elastic terminals are in reliable conductive contact with other conductive terminals.

[0018] Preferably, the end conductive members are hemispherical, and both ends of the mesh tubular structure are fixedly connected to the planar ends of the end conductive members.

[0019] Beneficial effect: The end conductive member is hemispherical, and the spherical surface of the end conductive member is for abutting against other conductive terminals to conduct electricity, and the end surface of the end conductive member facing the mesh tubular structure is for fixedly connecting to the mesh tubular structure, which on the one hand simplifies the structure of the end conductive member and on the other hand is more helpful in ensuring reliable abutment between the end conductive member and the conductive terminal to be docked, and because the end conductive member is hemispherical, reliable contact can still be ensured even if the end conductive member is slightly misaligned with the conductive terminal to be docked.

[0020] Preferably, the radial dimension of the end conductive member is smaller than the radial dimension of the mesh cylindrical structure.

[0021] Beneficial effects: In practical applications, multiple elastic terminals are typically mounted in parallel on a single mounting base, and the multiple elastic terminals are simultaneously electrically connected to multiple conductive terminals on a circuit board. The radial dimension of the end face of the end conductive member facing the mesh tube structure is smaller than the radial dimension of the mesh tube structure, which ensures a large gap between the end conductive members of two adjacent elastic terminals, which is more helpful in ensuring the distribution density of the terminals and the reliability of electrical contact.

[0022] Preferably, the conductive wires of each strand include two or more conductive wires, the conductive wires of the same strand extending in parallel.

[0023] Benefits: This braiding method ensures the structural stability of the braided layer, improves the contact reliability between the conductive wires, and ensures that the elastic terminals can transmit signals reliably and have a long service life.

[0024] In one specific embodiment, the electrical connector includes a mounting base having a mounting hole penetrating the mounting base, an elastic terminal attached to the mounting hole, the elastic terminal being the elastic terminal described above, the elastic terminal including a tubular body having two or more strands of conductive wire spaced apart along the circumferential direction of the tubular body, the conductive wires of each strand being braided with adjacent conductive wires in a predetermined and identical braiding direction to form a braided layer surrounded by a cylindrical mesh tube structure, any two adjacent conductive wires being cross-matched, and the two strands of conductive wire being immediately separated after cross-matching to form a gap, the conductive wires of each strand being elastic, the mesh tube structure having a hollow cylindrical interior, and conductive contact portions at both ends of the mesh tube structure, each capable of contacting only one conductive terminal.

[0025] Benefits: This application proposes an improved electrical connector, in which the tubular body of the elastic terminal has a mesh tubular structure surrounded by a braided layer formed by regularly braiding conductive wires, so that the elastic terminal can elastically expand and contract in the axial direction and achieve elastic contact with other conductive terminals, and the current transmission path is short and high-speed transmission is possible. During the production of the tubular body, the conductive wires can be regularly braided by the machine, which realizes efficient production and ensures high product consistency and a high product pass rate, thereby reducing production costs.

[0026] Preferably, an end of the elastic terminal is directly exposed from the mounting hole, or at least one end of the elastic terminal is provided with a conductive member that is in conductive contact with the elastic terminal and exposed from the mounting hole.

[0027] Beneficial effect: It is easy to bring the elastic terminal into contact with another conductive terminal to achieve electrical contact, and in particular, it is easy to bring the elastic terminal into contact with a flat conductive terminal.

[0028] Preferably, the orifice at at least one end of the mounting hole has an inward tapering structure, the conductive member is attached to the inward tapering orifice within the mounting hole, and the conductive member has an extending end extending from the inward tapering orifice and a retaining portion that engages with the inward tapering orifice as a stopper.

[0029] Beneficial effect: By installing in this manner, on the one hand, it is possible to prevent the elastic terminal from escaping from the mounting hole, and on the other hand, it is possible to limit the axial position of the elastic terminal within the mounting hole, thereby stabilizing the length of both ends of the elastic terminal exposed from the mounting hole and increasing consistency.

[0030] In one specific embodiment, there is provided a conductive connection assembly for a circuit board, the conductive connection assembly including an electrical connector and a circuit board connected to the electrical connector, the electrical connector including a mounting base having mounting holes penetrating the mounting base, elastic terminals mounted in the mounting holes, the elastic terminals including a tubular body, the tubular body including two or more strands of conductive wire spaced apart along the circumferential direction of the tubular body, the conductive wires of each strand being braided with adjacent conductive wires in a predetermined and identical braiding direction to form a braided layer and surrounded by a cylindrical mesh tube structure, any two adjacent conductive wires being cross-matched with each other, such that the two cross-matched strands are immediately separated to form a gap, the conductive wires of each strand being elastic, the interior of the mesh tube structure being a hollow cylindrical structure, and both ends of the mesh tube structure each having conductive contact portions that can abut only one conductive terminal, the circuit board being fixedly attached to the surface of the mounting base of the electrical connector, the conductive contacts of the circuit board being in conductive contact with the elastic terminals.

[0031] Benefits: This application proposes an improved conductive connection assembly for circuit boards, primarily relating to an improvement in an electrical connector, in which the tubular body of the elastic terminal of the electrical connector has a mesh tubular structure surrounded by a braided layer formed by regularly braiding conductive wires, allowing the elastic terminal to elastically expand and contract in the axial direction, achieving elastic contact with the conductive terminal, and enabling a short current transmission path and high-speed transmission. During the production of the tubular body, the conductive wires can be regularly braided by the device, thereby achieving efficient production and ensuring high product consistency and a high product pass rate, thereby reducing production costs and consequently reducing the production costs of the conductive connection assembly for circuit boards.

[0032] In the elastic terminal, electrical connector, and conductive connection assembly for circuit boards disclosed herein, the elastic terminal includes a tubular body having two or more conductive wire strands spaced apart along the circumferential direction of the tubular body, each of which is braided with adjacent conductive wires in a predetermined and identical braiding direction to form a braided layer and surrounded by a cylindrical mesh tubular structure. Any two adjacent conductive wire strands are cross-aligned, and each of the conductive wires in each strand is elastic. Each of the conductive wires in each strand has a conductive contact portion at each end of the mesh tubular structure, each of which can abut only one conductive terminal. The elastic terminal can elastically expand and contract in the axial direction to form elastic contact with other conductive terminals, thereby ensuring reliable signal transmission and a long service life. The braiding can be performed by a machine during the production of the tubular body, thereby achieving efficient production and ensuring high product consistency and a high product pass rate, thereby reducing production costs. [Brief explanation of the drawings]

[0033] In order to more clearly describe the technical solutions provided in the present application, the drawings are briefly described below. Of course, the drawings described below are only some embodiments of the present application.

[0034] [Figure 1]1 is a schematic diagram of a first embodiment of an elastic terminal according to the present application. [Figure 2] 1 is a schematic diagram of another aspect of the first embodiment of the elastic terminal according to the present application. [Figure 3] FIG. 2 is a top view of FIG. [Figure 4] FIG. 2 is a schematic diagram of a braided layer of Example 1. [Figure 5] This is a schematic diagram showing one conductive wire constituting one strand and two strands of conductive wire wound in a crossed manner. [Figure 6] This is a schematic diagram showing a plurality of conductive wires forming one strand and two strands of conductive wires being wound in a crossed manner. [Figure 7] 1 is a schematic diagram of a cylindrical main body having two braided layers in the radial direction in Example 1. FIG. [Figure 8] 1 is a schematic diagram of a cylindrical main body having one braided layer in the radial direction in Example 1. FIG. [Figure 9] 10 is a schematic diagram of a second embodiment of an elastic terminal according to the present application. FIG. [Figure 10] 10 is a schematic diagram of another aspect of the elastic terminal according to the second embodiment of the present application. FIG. [Figure 11] FIG. 10 is a schematic diagram of a braided layer of Example 2. [Figure 12] 1 is an overall schematic diagram of a first embodiment of an electrical connector according to the present application. [Figure 13] FIG. 13 is a schematic diagram of the internal structure of FIG. [Figure 14] FIG. 10 is an overall schematic view of a second embodiment of an electrical connector according to the present application. [Figure 15] FIG. 15 is a schematic diagram of the internal structure of FIG. [Figure 16] FIG. 10 is an overall schematic view of a third embodiment of an electrical connector according to the present application. [Figure 17] FIG. 17 is a schematic diagram of the internal structure of FIG. [Figure 18] 1 is a schematic diagram of Example 1 of a conductive connection assembly for a circuit board according to the present application. DETAILED DESCRIPTION OF THE INVENTION

[0035] Hereinafter, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. Based on the embodiments in the present application, all other embodiments that can be obtained by those skilled in the art without any creative efforts fall within the scope of protection of the present application.

[0036] The elastic terminal of the present application includes a tubular body containing two or more strands of conductive wire spaced apart along the circumferential direction of the tubular body, the conductive wires of each strand being braided with adjacent conductive wires in a predetermined and identical braiding direction to form a braided layer surrounded by a cylindrical mesh tubular structure, any two adjacent conductive wires being cross-matched, and the two strands being immediately separated after cross-matching to form a gap, the conductive wires of each strand being elastic, the interior of the mesh tubular structure being formed as a hollow cylindrical structure, and each end of the mesh tubular structure has a conductive contact portion that can abut only one conductive terminal.

[0037] The cross-matching and alternate spacing give the elastic terminals elasticity and allow them to elastically expand and contract in the axial direction, and then recover their original shape after elastic expansion and contraction again, achieving stable elastic contact with other conductive terminals. Furthermore, braiding can be achieved by equipment during production, thereby realizing efficient production, ensuring a high product pass rate, and reducing production costs.

[0038] When facing different working environments, this application designs two different braiding methods to adapt to efficient transmission environments and poor environments, respectively, and the specific designs are shown in Examples 1 and 2.

[0039] Example 1 of the elastic terminal according to the present application: As shown in Figures 1 to 3, the elastic terminal includes a tubular body 2, which is a mesh tubular structure surrounded by a braided layer formed by braiding multiple strands of conductive wire 3 at a certain angle and gap, and end conductive members 4 are fixedly connected to both ends of the mesh tubular structure, and the mesh tubular structure is electrically connected to the end conductive members 4. The conductors 3 have a certain degree of elasticity and strength. As shown in FIG. 4 , the conductors 3 of each strand extend helically along the axis of the tubular body 2. The conductors 3 are divided into left-handed and right-handed conductors according to their helical direction. All left-handed conductors are grouped together, and all right-handed conductors are grouped together. The helical directions of the left-handed and right-handed conductors cross each other. The crossing conductors 3 are stacked one above the other, with identical conductors 3 on the upper layer at the previous intersection and necessarily on the lower layer at the next intersection. A radial protrusion 10 is formed where two strands of conductors 3 cross, and a radial recess 11 is formed where they do not cross. The area surrounded by four radial protrusions 10 constitutes one radial recess 11. The braided structure of the tubular body 2 is wound according to a set pattern, enabling efficient production by the equipment, resulting in high product consistency and a high production pass rate. Furthermore, the spacing between adjacent conductors is restricted, resulting in high stability and strong impact resistance.

[0040] When winding the cylindrical body 2, each strand of conductive wire may include only one conductive wire 3 as shown in Figure 5, or may include two or more conductive wires 3 as shown in Figure 6, with each conductive wire 3 wound in parallel. Furthermore, the number of conductive wires included per strand may be the same or different.

[0041] The braided layer may be a single layer, as shown in FIG. 8, or two or more layers, as shown in FIG. 7, with the multiple braided layers radially stacked. The more braided layers there are, the larger the cross-sectional area of ​​the tubular body 2 and the stronger the current-carrying capacity. Furthermore, the multiple braided layers are radially constrained to each other, further improving the axial elastic deformation capacity of the tubular body 2. When two or more braided layers are provided, adjacent braided layers are alternately stacked, with the radial convex portion 10 formed in one braided layer corresponding to the radial concave portion 11 formed in the adjacent braided layer. This arrangement ensures that adjacent braided layers have a large radial deformation gap, further ensuring sufficient deformation space when the tubular body 2 is compressed, ensuring high axial elastic deformation capacity. Furthermore, the tight bonding between the inside and outside of adjacent braided layers prevents distortion under pressure and improves axial stability. This arrangement also allows the conductive wires 3 to be arranged more densely, improving the shielding effect when the elastic terminal is used as a shield terminal.

[0042] The conductive end members 4 are fixedly connected to both ends of the cylindrical mesh structure. The conductive end members 4 are hemispherical, with the spherical surfaces of the conductive end members 4 facing away from the cylindrical mesh structure. The ends of the cylindrical mesh structure are raised toward the center to form connecting ends. These connecting ends are fixedly connected to the end faces of the conductive end members 4 facing the cylindrical mesh structure. This can be achieved by laser welding, ultrasonic welding, solder welding, conductive gel bonding, or crimping. The radial dimension of the end faces of the conductive end members 4 facing the cylindrical mesh structure is smaller than the radial dimension of the cylindrical mesh structure. This ensures a large gap between the conductive end members of adjacent terminals when multiple elastic terminals are mounted in parallel on a single mounting base 1, thereby ensuring terminal density and reliable electrical contact. In use, the spherical surfaces of the conductive end members 4 serve as conductive contacts that make conductive contact with other conductive terminals.

[0043] When the elastic terminal of the present application is used, its cylindrical body 2 has a mesh cylindrical structure surrounded by a braided layer formed by braiding multiple conductive wires 3 at a certain angle and with a certain gap, so the elastic terminal can elastically expand and contract in the axial direction, achieving elastic contact with other conductive terminals, and the current transmission path is short, making it widely applicable to usage scenarios with high transmission speed, high node density, and low spatial height. During production, the regular braiding of the braided layer can be achieved by equipment, This improves processing efficiency, realizes efficient large-scale production, and ensures high product consistency and a high product pass rate, thereby reducing production costs. The elastic terminal of the present application may be used as a signal, power, or shield ground terminal.

[0044] Elastic Terminal Example 2: The main difference from Example 1 above is that the braiding direction of the conductor wires is different from that of Example 1, and the specific design is as follows: As shown in Figures 9 to 11, the conductor wires 3 of each strand are wavy and extend along the axial direction of the tubular body 2, the conductor wires 3 of two adjacent strands pass through nearby peaks and troughs and then protrude once to cross each other, the peaks and troughs of the conductor wires 3 of each strand all protrude and cross the troughs and peaks of the conductor wires 3 of the adjacent strands, and the conductor wires 3 of the multiple strands are interwoven in parallel and connected to each other to form an entire mesh tubular structure.

[0045] The braided structure of the tubular body 2 is wound according to a fixed rule, which allows for efficient production by the device, and the product is consistent and has a high production pass rate.

[0046] Compared with the elastic terminals in Example 1, the conductive wires 3 in Example 2 require a shorter path to reach both ends of the mesh tube structure, resulting in a shorter current transmission path and higher signal transmission efficiency, making it suitable for applications requiring high signal transmission efficiency. In contrast, the conductive wires 3 in Example 1 are denser, more stable, and more impact-resistant, making it suitable for applications in harsh environments.

[0047] Elastic Terminal Example 3: The main difference from Example 1 above is that no separate end conductive members are installed at either end of the mesh tube structure; the mesh tube structure itself is the conductive member, and both ends of the mesh tube structure act as conductive contacts that directly abut against compatible conductive terminals.

[0048] Elastic Terminal Example 4: The main difference from Example 1 above is the shape of the end conductive member. While the end conductive member in Example 1 above is hemispherical, in this example, the end conductive member is rectangular. Of course, the end conductive member may also have other shapes, such as a cylindrical shape.

[0049] Elastic terminal embodiment 5: The main difference from embodiment 1 above is that the radial dimension of the end face of the end conductive member facing the mesh tubular structure is equal to the radial dimension of the mesh tubular structure. Naturally, the radial dimension of the end face of the end conductive member facing the mesh tubular structure may be larger than the radial dimension of the mesh tubular structure, and both ends of the mesh tubular structure may be directly connected to the end face of the end conductive member facing the mesh tubular structure without being raised toward the center.

[0050] Of course, the braided layer may also adopt other braiding methods, and any braiding method formed by braiding conductive wires with a certain regularity and spacing can be realized by the device, thereby improving production efficiency and reducing the difficulty and cost of processing.

[0051] Hereinafter, several electrical connectors using the elastic terminals of the present application will be specifically described with reference to the drawings.

[0052] Example 1 of the electrical connector according to the present application: As shown in Figure 12, the electrical connector includes a mounting plate 1, which is a rectangular plate of a certain thickness, with four rows of mounting holes 101, each row having four mounting holes 101. The mounting holes 101 extend vertically through the mounting plate 1, and each mounting hole 101 is fitted with an elastic terminal. An inwardly projecting ring 103 is provided at the center of the inner wall of the mounting hole 101, and as shown in Figure 13, the inwardly projecting ring 103 fastens the cylindrical body 2 of the elastic terminal, thereby fixing the elastic terminal within the mounting hole 101, with both ends of the elastic terminal exposed by a certain length from the mounting hole 101.

[0053] The specific structure of the elastic terminal has already been described in the above embodiment of the elastic terminal according to the present application, and will not be described again here.

[0054] Example 2 of the electrical connector according to the present application: As shown in Figures 14 and 15, the electrical connector includes a mounting plate 1, which is a rectangular plate with a certain thickness, and which has four rows of mounting holes 101, each row having four mounting holes 101. The mounting holes 101 extend vertically through the mounting plate 1, and each mounting hole 101 is fitted with an elastic terminal and a flange head conductor 5. The flange head conductor 5 is a conductive member that is in conductive contact with the end conductive member 4 at the lower end of the elastic terminal and is exposed downward from the mounting hole 101. The orifice at the bottom of the mounting hole 101 has an inward-diameter tapering structure, forming a limiting step 102 within the mounting hole 101. The flange head conductor 5 is mounted in the inward-diameter tapering orifice. The cuff structure of the flange head conductor 5 forms a retaining portion, forming an axial stopper engagement with the limiting step 102 to prevent the elastic terminal from slipping out of the orifice at the bottom of the mounting hole 101. It also limits the axial position of one end of the elastic terminal, stabilizing the length of the end of the elastic terminal exposed from the mounting hole 101 and increasing consistency. Furthermore, the end area of ​​the flange head conductor 5 can be adjusted to change the conductive contact area with other conductive terminals. During assembly, the conductive member 4 at the bottom of the elastic terminal and the flange head conductor 5 can be bonded with a conductive gel and then installed in the mounting hole 101. After the flange head conductor 5 is placed in the mounting hole 101, the elastic terminal can be installed in the mounting hole, and the conductive member 4 at the bottom of the elastic terminal can be brought into contact with the flange head conductor 5 for combined use. After assembly is completed, the upper end of the elastic terminal is directly exposed from the mounting hole 101, and the lower flange head conductor 5 is exposed downward from the mounting hole 101 and is used to make electrical contact with other conductive terminals.

[0055] Example 3 of the electrical connector according to the present application: As shown in Figures 16 and 17, the electrical connector includes a mounting plate 1, which includes an upper plate and a lower plate that are installed separately. The upper and lower plates have the same structure and are arranged symmetrically from top to bottom. Both the upper and lower plates are rectangular plates with a certain thickness, and the rectangular plates are provided with four rows of through holes, each row having four through holes. The through holes extend vertically through the rectangular plates. After the upper and lower plates are assembled, the through holes on the two rectangular plates are connected in a one-to-one correspondence. The two corresponding and connected through holes on the top and bottom jointly form a complete mounting hole 101, within which are mounted elastic terminals and two flange head conductors 5. The two flange head conductors 5 act as two conductive members that are in conductive contact with the upper and lower end conductive members 4 of the elastic terminals, respectively. The entire elastic terminal is accommodated within the mounting hole 101, and the two flange head conductors 5 are exposed from the mounting hole 101 facing upward and downward, respectively. The orifices at the upper and lower ends of the mounting hole 101 both have an inward-diameter tapering structure, thereby forming two limiting steps 102 within the mounting hole 101. The two flanged head conductors 5 are respectively attached to the two inward-diameter tapering orifices. The cuff structures of the two flanged head conductors 5 form retaining sections that axially engage with the corresponding limiting steps 102, preventing the elastic terminals from slipping out of the mounting hole 101 and limiting the axial position of both ends of the elastic terminals. This stabilizes the length of the two flanged head conductors 5 at both ends exposed from the mounting hole 101, resulting in high consistency. Furthermore, the area of ​​the ends of the flanged head conductors 5 can be adjusted to change the conductive contact area with other conductive terminals. During assembly, the end conductive members 4 at both ends of the elastic terminal can be bonded to the flange head conductors 5 with conductive gel and then installed in the mounting hole 101; the flange head conductors 5 can be placed in the mounting hole 101, and then the elastic terminal can be installed in the mounting hole 101, with the end conductive members 4 at both ends of the elastic terminal coming into contact with the two flange head conductors 5, respectively. After assembly is complete, the two flange head conductors 5 at both ends are exposed from the mounting hole 101 facing upward and downward, respectively, and can be used to make electrical contact with other conductive terminals.

[0056] The specific structure of the elastic terminal has already been described in each of the embodiments of the elastic terminal of the present application above, and the only difference is that flange head conductors are added to both ends of the tubular body.Since the other structures are the same, they will not be described again here.

[0057] Example 1 of the conductive connection assembly for circuit boards of the present application: 18, the conductive connection assembly for circuit boards includes an electrical connector 9 and a circuit board 6 connected to the electrical connector 9, the electrical connector 9 is disposed between two circuit boards 6, the circuit boards 6 are fixed to the surface of the mounting plate of the electrical connector 9 and are fixedly connected via fastening screws 7 and nuts 8, thereby realizing current transmission between the circuit boards 6. The specific structure of the electrical connector has already been described in each embodiment of the electrical connector above, and a detailed description thereof will be omitted here.

[0058] Example 2 of a conductive connection assembly for a circuit board: The main difference from Example 1 above is that a circuit board is connected to one side of the electrical connector, and no circuit board is connected to the other side, and the elastic terminals are exposed outside the mounting hole and can be used to connect other compatible connectors.

[0059] Finally, the following points should be explained: First, in the description of this application, unless otherwise specified or limited, the terms "attached," "coupled," and "connected" should be understood in a broad sense, and may refer to a mechanical connection or an electrical connection, may refer to internal communication between two elements, or may refer to a direct connection, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, and it should be explained that the relative positional relationships may change if the absolute position of the objects being described changes.

[0060] Next, the drawings of the embodiments disclosed in this application are only related to the structures related to the embodiments of the present disclosure, and other structures may refer to conventional designs. Unless inconsistent, the same and different embodiments of the present application may be combined with each other.

[0061] Finally, the above are only preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall fall within the scope of protection of the present application. [Explanation of symbols]

[0062] 1 Mounting plate 101 Mounting hole 102 Restricted Steps 103 Inner protruding ring 2. Cylindrical body 3 Conductive wire 4 End conductive member 5 flange head conductor 6 Circuit Board 7 screws 8 nuts 9 Electrical Connectors 10 Radial convex portion 11 Radial recess

Claims

1. An elastic terminal, 1. An elastic terminal comprising: a cylindrical body (2), the cylindrical body (2) including two or more strands of conductive wires (3) spaced apart along the circumferential direction of the cylindrical body (2), the conductive wires (3) of each strand being braided with adjacent conductive wires (3) along a predetermined and identical braiding direction to form a braided layer and surrounded by a cylindrical mesh tube structure, any two adjacent strands of conductive wires (3) being cross-matched, and the two strands of conductive wires (3) being immediately separated after cross-matching to form a gap, the conductive wires (3) of each strand being elastic, the interior of the mesh tube structure being formed as a hollow cylindrical structure, and both ends of the mesh tube structure each having a conductive contact portion that can abut only one conductive terminal.

2. 2. The elastic terminal according to claim 1, wherein the conductive wires (3) of each strand have a wavy structure and extend in a staggered pattern from left to right along the axial direction of the cylindrical body (2), and the conductive wires (3) of any two adjacent strands pass through peaks and troughs that are close to each other and then cross each other.

3. 3. The elastic terminal according to claim 2, wherein the braided layer is provided in two or more layers, and the plurality of braided layers are stacked along the radial direction of the mesh tube structure.

4. 2. The elastic terminal according to claim 1, wherein the conductive wires (3) of each strand have a spiral structure and extend spirally along the axial direction of the tubular body (2), and the conductive wires (3) of any two adjacent strands are laminated and crossed.

5. 5. The elastic terminal according to claim 4, wherein radial convex portions (10) are formed at positions where the conductive wires (3) of each strand intersect with each other, and radial concave portions (11) are formed at positions where they do not intersect with each other, the braided layers are provided in two or more layers, the plurality of braided layers are stacked along the radial direction of the mesh tube structure, adjacent braided layers are stacked alternately, and the radial convex portion (10) formed in one braided layer corresponds to the radial concave portion (11) formed in the braided layer of the adjacent layer.

6. An elastic terminal as described in any one of claims 1 to 5, characterized in that an end conductive member (4) is provided on both ends of the mesh cylindrical structure, and the outer end surface of the end conductive member (4) opposite the mesh cylindrical structure becomes the conductive contact portion.

7. 7. The elastic terminal according to claim 6, wherein the end conductive member (4) is hemispherical, and both ends of the mesh tubular structure are fixedly connected to the flat ends of the end conductive member (4).

8. 8. The elastic terminal according to claim 7, wherein the radial dimension of the end conductive member (4) is smaller than the radial dimension of the mesh cylindrical structure.

9. 6. The elastic terminal according to claim 1, wherein the conductive wires (3) of each strand have two or more conductive wires (3), and the conductive wires (3) of the same strand extend in parallel.

10. An electrical connector comprising a mounting base, a mounting hole (101) penetrating the mounting base, and an elastic terminal mounted in the mounting hole (101), characterized in that the elastic terminal is an elastic terminal according to any one of claims 1 to 9.

11. 11. The electrical connector according to claim 10, wherein an end of the elastic terminal is directly exposed from the mounting hole (101), or at least one end of the elastic terminal is provided with a conductive member that is in conductive contact with the elastic terminal and is exposed from the mounting hole (101).

12. 11. The electrical connector of claim 10, wherein an orifice at at least one end of the mounting hole (101) has an inward tapering structure, the conductive member is attached to the inward tapering orifice within the mounting hole (101), and the conductive member has an extending end extending from the inward tapering orifice and a retaining portion that engages with the inward tapering orifice as a stopper.

13. 13. The electrical connector according to claim 11 or 12, wherein an inner wall of the mounting hole (101) is provided with an inwardly protruding ring (103) for fastening the elastic terminal.

14. 14. A conductive connection assembly for a circuit board, comprising an electrical connector (9) and a circuit board (6) connected to the electrical connector (9), wherein the electrical connector (9) is the electrical connector (9) according to any one of claims 10 to 13, the circuit board (6) is fixedly attached to a surface of a mounting base of the electrical connector (9), and the conductive contacts of the circuit board (6) are in conductive contact with the elastic terminals.

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