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

Abstract

The present disclosure belongs to the technical field of connectors, and particularly relates to an elastic terminal, an electric connector, and a conductive connection assembly with a circuit board. The elastic terminal includes a cylindrical body. The cylindrical body includes two or more strands of conductive filaments spaced in a circumferential direction of the cylindrical body. Each strand of conductive filaments and an adjacent strand of conductive filaments are woven in a specific and identical braided direction, so as to form braided layers to form a cylindrical meshy cylinder structure. Any two adjacent strands of conductive filaments are matched with each other in a crossed manner. Each strand of conductive filaments has elasticity. Two ends of the meshy cylinder structure each have a conductive contact portion that can only abut against one conductive terminal. The elastic terminal can elastically extend and retract to be deformed in an axial direction, so as to implement elastic contact with other conductive terminals. The elastic terminal is reliable in signal transmission and longer in service life. The cylindrical body can be woven by an apparatus during production, such that high-efficiency production is implemented, and better product consistency and a higher product qualification rate can be ensured. Thus, production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of connectors, and particularly relates to an elastic terminal, an electric connector, and a conductive connection assembly with a circuit board.BACKGROUND

[0002] Elastic terminals are conductive components commonly used in electric connectors. At present, the common terminals that can achieve longitudinal elastic contact mainly include L-shaped or C-shaped cantilever beam terminals and cylindrical elastic terminals. An L-shaped or C-shaped cantilever beam terminal generally includes a main body portion and a cantilever connected to an end of the main body part, and only the cantilever can be elastically deformed. Such terminals have limitations that due to too short a cantilever, the cantilever is easy to yield after being pressed, while a transmission path is long in a case of too long a cantilever. In this case, high-speed performance requirements of low-profile connectors cannot be satisfied, and high-density arrangement cannot be implemented. A cylindrical elastic terminal includes a spring-loaded pin, a fuzz button, etc. Although it can meet requirements of low-profile connectors, its complex structure, low processing efficiency, complicated working procedures and high cost are achieved. During production and manufacture of fuzz buttons, there is no regularity in winding of metal wires, leading to a complicated winding process, poor product consistency, and low production yield, which further increases production cost. In addition, when a metal wire breaks somewhere in a use process, surrounding metal wires are only overlapped in chaos, so it is easy to cause unstable signal transmission.SUMMARY

[0003] An objective of the present disclosure is to provide an elastic terminal, an electric connector, and a conductive connection assembly with a circuit board, so as to solve problems of a complicated structure, low processing efficiency and high processing cost of an existing cylindrical elastic terminal. An objective of the present disclosure is to further provide an electric connector, so as to solve problems of a complicated structure, low processing efficiency and high processing cost of an elastic terminal of an existing electric connector, which lead to higher overall cost of the electric connector. An objective of the present disclosure is to further provide a conductive connection assembly with a circuit board, so as to solve a problem of high cost of an existing conductive connection assembly with a circuit board.

[0004] A technical solution of the present disclosure is as follows: an elastic terminal includes a cylindrical body. The cylindrical body includes two or more strands of conductive filaments spaced in a circumferential direction of the cylindrical body. Each strand of the conductive filaments and an adjacent strand of conductive filaments are woven in a specific and identical braided direction, so as to form braided layers to form a cylindrical meshy cylinder structure. Any two adjacent strands of conductive filaments are matched with each other in a crossed manner, and the two strands of conductive filaments matched with each other in a crossed manner are separated from each other immediately, to form a gap. Each strand of the conductive filaments has elasticity. The meshy cylinder structure is internally provided with a hollow cylindrical structure, and two ends of the meshy cylinder structure each have a conductive contact portion that is only capable of abutting against one conductive terminal.

[0005] Beneficial effects: The present disclosure provides the novel elastic terminal. The cylindrical body is the meshy cylinder structure formed by the braided layers that are regularly woven by the conductive filaments, such that the elastic terminal can elastically extend and retract to be deformed in an axial direction to implement elastic contact with other conductive terminals. In addition, a current transmission path is short, which can implement high-speed transmission. The conductive filaments can be regularly woven by an apparatus during production of the cylindrical body, such that high-efficiency production is implemented, and better product consistency and a higher product qualification rate can be ensured. Thus, production cost is reduced.

[0006] Meanwhile, due to mutual spacing between adjacent conductive filaments, higher stability, stronger impact resistance and stronger deformation recovery ability are achieved.

[0007] Preferably, each strand of the conductive filaments has a wavy structure and extends in an axial direction of the cylindrical body in a left-right staggered manner. Any two adjacent strands of conductive filaments are snagged in a crossed manner through wave peaks and wave troughs that are close to each other.

[0008] Beneficial effects: The two adjacent strands of conductive filaments are snagged in a crossed manner through the wave peaks and the wave troughs that are close to each other, which can ensure that the formed braided layers are stable in structure and each of the conductive filaments has high contact performance. Thus, the elastic terminal can implement reliable signal transmission and has a long service life. The cylindrical body can be woven by an apparatus during production, such that high-efficiency production is implemented, and better product consistency and a higher product qualification rate can be ensured. Thus, production cost is reduced.

[0009] Preferably, the two or more braided layers are provided. The plurality of braided layers are stacked in a radial direction of the meshy cylinder structure.

[0010] Beneficial effects: On one hand, stacked arrangement can increase a cross-sectional area of the cylindrical body and improve flow capacity. On the other hand, the plurality of braided layers are mutually restrained in the radial direction, such that axial elastic deformation capacity of the cylindrical body can be improved, and the cylindrical body is more stable when bearing an axial acting force and is not prone to distortion.

[0011] Preferably, each strand of the conductive filaments has a spiral structure and extends in an axial direction of the cylindrical body in a spiral manner. Any two adjacent strands of conductive filaments are stacked in a crossed manner.

[0012] Beneficial effects: Such a weaving method can ensure that a dense and stable structure of the formed braided layers, reliable contact between the conductive filaments and stronger impact resistance.

[0013] Preferably, a radial convex portion is formed at an overlapping position of each strand of the conductive filaments, and a radial concave portion is formed at a non-overlapping position of each of the conductive filaments. The two or more braided layers are provided. The plurality of braided layers are stacked in a radial direction of the meshy cylinder structure, and adjacent braided layers are stacked in a staggered manner, to make the radial convex parts formed by one of the braided layers correspond to the radial concave parts formed by the adjacent braided layer.

[0014] Beneficial effects: The corresponding arrangement of the radial convex portions and the radial concave portions can make the adjacent braided layers have a larger deformation gap in the radial direction, so as to ensure that the cylindrical body has an enough deformation space when being pressed, and ensure a stronger axial elastic telescopic deformation ability. Meanwhile, interiors and exteriors of the adjacent braided layers are closely matched with each other, which can better maintain axial stability and cannot cause distortion during pressing. In addition, such arrangement makes the conductive filaments more densely arranged, and a shielding effect is better when the elastic terminal is used as a shielding terminal.

[0015] On one hand, stacked arrangement of the plurality of braided layers can increase a cross-sectional area of the cylindrical body and improve flow capacity. On the other hand, the plurality of braided layers are mutually restrained in the radial direction, such that axial elastic deformation capacity of the cylindrical body can be improved, and the cylindrical body is more stable when bearing an axial acting force and is not prone to distortion.

[0016] Preferably, two ends of the meshy cylinder structure are provided with end conductive pieces. Outer end surfaces of the end conductive pieces facing away from the meshy cylinder structure are provided with the conductive contact portions.

[0017] Beneficial effects: The end conductive pieces are fixedly connected to the two ends of the meshy cylinder structure, and the end conductive pieces are in conductive contact with other conductive terminals. On one hand, the two ends of the meshy cylinder structure can be protected, and the two ends of the meshy cylinder structure can be prevented from directly making contact with other conductive terminals and being frequently pressed and deformed to shorten the service life. On the other hand, conductive contact between the elastic terminal and other conductive terminals can be more reliable.

[0018] Preferably, the end conductive pieces are hemispherical. The two ends of the meshy cylinder structure are fixedly connected to flat ends of the end conductive pieces.

[0019] Beneficial effects: The end conductive pieces are hemispherical. Spherical surfaces of the end conductive pieces are used for abutting against other conductive terminals to conduct electricity. End surfaces of the end conductive pieces towards the meshy cylinder structure are used for being fixedly connected to the meshy cylinder structure. On one hand, the end conductive pieces have a simple structure. On the other hand, it is more favorable to ensure reliable contact between the end conductive pieces and the butted conductive terminals. The end conductive pieces are hemispherical, so reliable contact can still be ensured when the end conductive pieces and the butted conductive terminals are slightly misaligned.

[0020] Preferably, a radial size of the end conductive pieces is less than that of the meshy cylinder structure.

[0021] Beneficial effects: In practical application, a plurality of elastic terminals are generally mounted side by side on one mounting base, such that the plurality of elastic terminals are electrically connected to a plurality of conductive terminals on the circuit board at the same time, and a radial size of the end conductive pieces towards the meshy cylinder structure is less than that of the meshy cylinder structure. It can be ensured that there is a great distance between the end conductive pieces of the two adjacent elastic terminals, such that terminal distribution density and electrical contact reliability can be ensured more favorably.

[0022] Preferably, each strand of the conductive filaments has two or more conductive filaments. Each of the conductive filaments of an identical strand extends in parallel.

[0023] Beneficial effects: Such a weaving method can ensure structural stability of the formed braided layers, improve contact reliability between the conductive filaments, and further ensure reliable signal transmission and a long service life of the elastic terminal.

[0024] As a specific embodiment, an electric connector includes a mounting base. The mounting base is provided with a mounting hole penetrating the mounting base. The mounting hole is internally provided with an elastic terminal. The elastic terminal is the elastic terminal described above. The elastic terminal includes a cylindrical body. The cylindrical body includes two or more strands of conductive filaments spaced in a circumferential direction of the cylindrical body. Each strand of the conductive filaments and an adjacent strand of conductive filaments are woven in a specific and identical braided direction, so as to form braided layers to form a cylindrical meshy cylinder structure. Any two adjacent strands of conductive filaments are matched with each other in a crossed manner, and the two strands of conductive filaments matched with each other in a crossed manner are separated from each other immediately, to form a gap. Each strand of the conductive filaments has elasticity. The meshy cylinder structure is internally provided with a hollow cylindrical structure, and two ends of the meshy cylinder structure each have a conductive contact portion that is only capable of abutting against one conductive terminal.

[0025] Beneficial effects: The present disclosure provides the improved electric connector. The cylindrical body of the elastic terminal is the meshy cylinder structure formed by the braided layers that are regularly woven by the conductive filaments, such that the elastic terminal can elastically extend and retract to be deformed in an axial direction to implement elastic contact with other conductive terminals. In addition, a current transmission path is short, which can implement high-speed transmission. The conductive filaments can be regularly woven by an apparatus during production of the cylindrical body, such that high-efficiency production is implemented, and better product consistency and a higher product qualification rate can be ensured. Thus, production cost is reduced.

[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 piece that is in conductive contact with the elastic terminal and is exposed from the mounting hole.

[0027] Beneficial effects: The elastic terminal can conveniently abut against other conductive terminals to implement electrical contact. Especially, the elastic terminal can conveniently abut against flat conductive terminals.

[0028] Preferably, an opening on at least one end of the mounting hole has an adduction structure. The conductive piece is mounted at the adduction opening in the mounting hole. The conductive piece has an extension end that extends out of the adduction opening and an anti-disengagement portion that is engaged with the adduction opening in a locking manner.

[0029] Beneficial effects: On one hand, such arrangement can prevent the elastic terminal from falling from the mounting hole. On the other hand, the elastic terminal can be axially limited in the mounting hole, such that lengths of two ends of the elastic terminal that are exposed from the mounting hole are stable and consistent.

[0030] As a specific embodiment, a conductive connection assembly with a circuit board includes an electric connector and a circuit board connected to the electric connector. The electric connector includes a mounting base. The mounting base is provided with a mounting hole penetrating the mounting base. The mounting hole is internally provided with an elastic terminal. The elastic terminal includes a cylindrical body. The cylindrical body includes two or more strands of conductive filaments spaced in a circumferential direction of the cylindrical body. Each strand of the conductive filaments and an adjacent strand of conductive filaments are woven in a specific and identical braided direction, so as to form braided layers to form a cylindrical meshy cylinder structure. Any two adjacent strands of conductive filaments are matched with each other in a crossed manner, and the two strands of conductive filaments matched with each other in a crossed manner are separated from each other immediately, to form a gap. Each strand of the conductive filaments has elasticity. The meshy cylinder structure is internally provided with a hollow cylindrical structure, and two ends of the meshy cylinder structure each have a conductive contact portion that is only capable of abutting against one conductive terminal. The circuit board is fixedly mounted on a surface of the mounting base of the electric connector. A conductive contact of the circuit board is in conductive contact with the elastic terminal.

[0031] Beneficial effects: The present disclosure provides the improved conductive connection assembly with the circuit board, and mainly relates to an improvement in an electric connector. The cylindrical body of the elastic terminal of the electric connector is the meshy cylinder structure formed by the braided layers that are regularly woven by the conductive filaments, such that the elastic terminal can elastically extend and retract to be deformed in an axial direction to implement elastic contact with other conductive terminals. In addition, a current transmission path is short, which can implement high-speed transmission. The conductive filaments can be regularly woven by an apparatus during production of the cylindrical body, such that high-efficiency production is implemented, and better product consistency and a higher product qualification rate can be ensured. Thus, production cost is reduced. Based on this, production cost of the conductive connection assembly with the circuit board is reduced.

[0032] The present disclosure provides the elastic terminal, the electric connector, and the conductive connection assembly with the circuit board. The elastic terminal includes the cylindrical body. The cylindrical body includes the two or more strands of conductive filaments spaced in the circumferential direction of the cylindrical body. Each strand of conductive filaments and the adjacent strand of conductive filaments are woven in a specific and identical braided direction, so as to form the braided layers to form the cylindrical meshy cylinder structure. Any two adjacent strands of conductive filaments are matched with each other in a crossed manner. Each strand of conductive filaments has elasticity. The two ends of the meshy cylinder structure each have the conductive contact portion that is only capable of abutting against one conductive terminal. The elastic terminal can elastically extend and retract to be deformed in an axial direction, so as to implement elastic contact with other conductive terminals. The elastic terminal is reliable in signal transmission and longer in service life. The cylindrical body can be woven by an apparatus during production, such that high-efficiency production is implemented, and better product consistency and a higher product qualification rate can be ensured. Thus, production cost is reduced.BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the present disclosure, the accompanying drawings will be briefly introduced below. Obviously, the drawings described below are only some examples of the present disclosure. FIG. 1 is a schematic diagram of Example 1 of an elastic terminal of the present disclosure; FIG. 2 is a schematic diagram of Example 1 of an elastic terminal of the present disclosure from another visual angle; FIG. 3 is a top view of FIG. 1; FIG. 4 is a schematic diagram of a braided layer of Example 1; FIG. 5 is a schematic diagram showing that a single conductive filament forms one strand and two strands of conductive filaments are intertwined; FIG. 6 is a schematic diagram showing that a plurality of conductive filaments form one strand and two strands of conductive filaments are intertwined; FIG. 7 is a schematic diagram showing that a cylindrical body is provided with two braided layers in a radial direction in Example 1; FIG. 8 is a schematic diagram showing that a cylindrical body is provided with one braided layer in a radial direction in Example 1; FIG. 9 is a schematic diagram of Example 2 of an elastic terminal of the present disclosure; FIG. 10 is a schematic diagram of Example 2 of an elastic terminal of the present disclosure from another visual angle; FIG. 11 is a schematic diagram of a braided layer of Example 2; FIG. 12 is an integral schematic diagram of Example 1 of an electric connector of the present disclosure; FIG. 13 is a schematic diagram of an internal structure of FIG. 12; FIG. 14 is an integral schematic diagram of Example 2 of an electric connector of the present disclosure; FIG. 15 is a schematic diagram of an internal structure of FIG. 14; and FIG. 16 is an integral schematic diagram of Example 3 of an electric connector of the present disclosure; FIG. 17 is a schematic diagram of an internal structure of FIG. 16; and FIG. 18 is a schematic diagram of Example 1 of a conductive connection assembly with a circuit board of the present disclosure.

[0034] In the figures: 1, mounting plate; 101, mounting hole; 102, limiting step; 103, inner convex ring; 2, cylindrical body; 3, conductive filament; 4, end conductive piece; 5, flange connector conductor; 6, circuit board; 7, screw; 8, nut; 9, electric connector; 10, radial convex portion; and 11, radial concave portion.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Technical solutions in examples of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the examples of the present disclosure. Obviously, the examples described are merely some examples rather than all examples of the present disclosure. All other examples obtained by those of ordinary skill in the art based on the examples of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0036] An elastic terminal of the present disclosure includes a cylindrical body. The cylindrical body includes two or more strands of conductive filaments spaced in a circumferential direction of the cylindrical body. Each strand of the conductive filaments and an adjacent strand of conductive filaments are woven in a specific and identical braided direction, so as to form braided layers to form a cylindrical meshy cylinder structure. Any two adjacent strands of conductive filaments are matched with each other in a crossed manner, and the two strands of conductive filaments matched with each other in a crossed manner are separated from each other immediately, to form a gap. Each strand of the conductive filaments has elasticity. The meshy cylinder structure is internally provided with a hollow cylindrical structure, and two ends of the meshy cylinder structure each have a conductive contact portion that is only capable of abutting against one conductive terminal.

[0037] Through crossed matching and staggered arrangement of gaps, the elastic terminal has elasticity, can elastically extend and retract to be deformed in an axial direction, and can be restored to an original state after deformation through elastic extension and retraction, so as to implement stable elastic contact with other conductive terminals. Weaving can be implemented by an apparatus during production, such that high-efficiency production is implemented, a higher product qualification rate is ensured, and production cost is reduced.

[0038] In the face of different working environments, two different weaving modes are designed in the present disclosure to adapt to a high-efficiency transmission environment and a harsh environment respectively. Specific designs are shown in Example 1 and Example 2:

[0039] Example 1 of the elastic terminal of the present disclosure is as follows: As shown in FIG. 1 to FIG. 3, the elastic terminal includes a cylindrical body 2. The cylindrical body 2 is a meshy cylinder structure formed by braided layers woven by a plurality of strands of conductive filaments 3 at a certain angle with certain gaps. Two ends of the meshy cylinder structure are fixedly connected to end conductive pieces 4. The meshy cylinder structure is electrically connected to the end conductive pieces 4. The conductive filaments 3 have certain elasticity and strength. As shown in FIG. 4, each strand of conductive filament 3 spirally extends along an axis of the cylindrical body 2, and the conductive filaments 3 are divided into left-handed conductive filaments and right-handed conductive filaments according to different spiral directions. All the left-handed conductive filaments form a group, and all the right-handed conductive filaments form a group. Spiral extension directions of the left-handed conductive filaments and the right-handed conductive filaments are mutually crossed, and the crossed conductive filaments 3 are alternately pressed one above the other. The same conductive filament 3 is located at an upper layer at a previous intersection point, and accordingly the conductive filament must be located at a lower layer at a next intersection point. A position where two strands of conductive filaments 3 intersect is provided with a radial convex portion 10, and a position where the conductive filaments do not intersect is provided with a radial concave portion 11. A zone defined by four radial convex parts 10 is one radial concave portion 11. A woven structure of the cylindrical body 2 is wound according to a certain rule, such that high-efficiency production can be implemented by an apparatus, and better product consistency and a higher production qualification rate are achieved. Meanwhile, due to mutual spacing between adjacent conductive filaments, higher stability and stronger impact resistance ability are achieved.

[0040] When the cylindrical body 2 is produced through winding, each strand of conductive filament may include only one conductive filament 3, as shown in FIG. 5. Or, each strand of conductive filaments may include two or more conductive filaments 3, and each of the conductive filaments 3 is wound in parallel, as shown in FIG. 6. In addition, a quantity of conductive filaments included in each strand may be consistent or not.

[0041] A single braided layer may be provided, as shown in FIG. 8. Or, two or more braided layers may be provided, as shown in FIG. 7. A plurality of braided layers are stacked in a radial direction. The greater a quantity of braided layers, the larger a cross-sectional area of the cylindrical body 2, and the stronger flow capacity. Moreover, the plurality of braided layers are mutually restrained in the radial direction, and axial elastic deformation capacity of the cylindrical body 2 can be further improved. When two or more braided layers are provided, the adjacent braided layers are stacked in a staggered manner, such that the radial convex portions 10 formed by one braided layer correspond to the radial concave portions 11 formed by an adjacent braided layer. Such arrangement can make the adjacent braided layers have a larger deformation gap in the radial direction, so as to ensure that the cylindrical body 2 has an enough deformation space when being pressed, and ensure a stronger axial elastic telescopic deformation ability. Meanwhile, interiors and exteriors of the adjacent braided layers are closely matched with each other, which can better maintain axial stability and cannot cause distortion during pressing. In addition, such arrangement can make the conductive filaments 3 more densely arranged, and a shielding effect is better when the elastic terminal is used as a shielding terminal.

[0042] The end conductive pieces 4 are fixedly connected to the two ends of the meshy cylinder structure. The end conductive pieces 4 are hemispherical. Spherical surfaces of the end conductive pieces 4 face away from the meshy cylinder structure. The two ends of the meshy cylinder structure converge towards centers to form connecting ends. The connecting ends are fixedly connected to end surfaces of the end conductive pieces 4 towards the meshy cylinder structure, which may use modes such as laser welding, ultrasonic welding, spot tin welding, conductive gel bonding, and pressure welding and squeezing. A radial size of end surfaces of the end conductive pieces 4 towards the meshy cylinder structure is less than that of the meshy cylinder structure. Mounting a plurality of elastic terminals on one mounting base side by side can ensure that there is a great distance between end conductive pieces of two adjacent elastic terminals, and further ensure terminal distribution density and electrical contact reliability. During use, spherical surfaces of the end conductive pieces 4 are used as conductive contact portions to make conductive contact with other conductive terminals.

[0043] When the elastic terminal of the present disclosure is used, the cylindrical body 2 of the elastic terminal is the meshy cylinder structure formed by the braided layers woven by the plurality of conductive filaments 3 at a certain angle with certain gaps, such that the elastic terminal can elastically extend and retract to be deformed in the axial direction to implement elastic contact with other conductive terminals. In addition, a short current transmission path can be widely used in use scenes with a high transmission rate, a high node density and a low space height. In manufacturing, regular weaving of the braided layers can be implemented by an apparatus.

[0044] Thus, processing efficiency can be improved, high-efficiency and large-scale production is implemented, better product consistency and a higher product qualification rate can be ensured, and production cost is reduced. The elastic terminal of the present disclosure can be used as a signal, power supply or shield earthing terminal.

[0045] Example 2 of the elastic terminal is mainly different from Example 1 in that a braided direction of conductive filaments is different from that of the conductive filaments in Example 1. The specific design is as follows: as shown in FIG. 9 to FIG. 11, each strand of conductive filaments 3 is wavy and extends in the axial direction of the cylindrical body 2. The two adjacent strands of conductive filaments 3 are snagged once through wave peaks and wave troughs that are close to each other. Wave peaks and wave troughs of each strand of conductive filaments 3 and those of an adjacent strand of conductive filaments 3 are snagged in a crossed manner. A plurality of strands of conductive filaments 3 are interwoven and interconnected in parallel to form the entire meshy cylinder structure.

[0046] A woven structure of the cylindrical body 2 is wound according to a certain rule, such that high-efficiency production can be implemented by an apparatus, and better product consistency and a higher production qualification rate are achieved.

[0047] Compared with the elastic terminal in Example 1, the conductive filaments 3 in Example 2 need to pass a shorter path to reach the two ends of the meshy cylinder structure, so a current transmission path is shorter, and signal transmission efficiency is higher. The example is suitable for scenes with higher signal transmission efficiency requirements. However, the conductive filaments 3 in Example 1 are more densely distributed, have higher stability and stronger impact resistance, and are suitable for harsh application scenes.

[0048] Example 3 of the elastic terminal is mainly different from Example 1 in that the two ends of a meshy cylinder structure are not additionally provided with end conductive pieces, the meshy cylinder structure is a conductive piece, and the two ends of the meshy cylinder structure are directly used as conductive contact portions to abut against suitable conductive terminals.

[0049] Example 4 of the elastic terminal is mainly different from Example 1 in that a shape of end conductive pieces is different. In Example 1, the end conductive pieces are hemispherical, while the end conductive pieces are rectangular in the example. Clearly, the end conductive pieces may be in other shapes, such as a cylindrical shape.

[0050] Example 5 of the elastic terminal is mainly different from Example 1 in that a radial size of end surfaces of end conductive pieces towards a meshy cylinder structure is equal to that of the meshy cylinder structure. Clearly, a radial size of end surfaces of end conductive pieces towards a meshy cylinder structure may also be greater than that of the meshy cylinder structure, and two ends of the meshy cylinder structure may not converge towards centers and may be directly connected to the end surfaces of the end conductive pieces towards the meshy cylinder structure.

[0051] Clearly, braided layers may use other weaving methods. As long as conductive filaments are woven according to certain rules and gaps to form the braided layers, weaving can be implemented by an apparatus. Thus, production efficiency is improved, and processing difficulty and cost are reduced.

[0052] Several electric connectors using the elastic terminal of the present disclosure will be introduced in detail with reference to the accompanying drawings.

[0053] Example 1 of an electric connector of the present disclosure is as follows: As shown in FIG. 12, the electric connector includes a mounting plate 1. The mounting plate 1 is a rectangular plate having a certain thickness. The rectangular plate is provided with four rows of mounting holes 101. Each row includes four mounting holes 101. The mounting holes 101 extend vertically and penetrate the mounting plate 1. Each of the mounting holes 101 is internally provided with an elastic terminal. Middle positions of inner walls of the mounting holes 101 are provided with inner convex rings 103. As shown in FIG. 13, the inner convex rings 103 tightly clamp cylindrical bodies 2 of the elastic terminals, such that the elastic terminals are fixed in the mounting holes 101, and two ends of the elastic terminals are exposed from the mounting holes 101 by a certain length.

[0054] A specific structure of the elastic terminals is described in the examples of the elastic terminal of the present disclosure, and will not be repeated herein.

[0055] Example 2 of an electric connector of the present disclosure is as follows: As shown in FIG. 14 and FIG. 15, the electric connector includes a mounting plate 1. The mounting plate 1 is a rectangular plate having a certain thickness. The rectangular plate is provided with four rows of mounting holes 101. Each row includes four mounting holes 101. The mounting holes 101 extend vertically and penetrate the mounting plate 1. Each of the mounting holes 101 is internally provided with an elastic terminal and a flange connector conductor 5. The flange connector conductors 5 are used as conductive pieces, are in conductive contact with end conductive pieces 4 at lower ends of the elastic terminals, and are exposed downward from the mounting holes 101. Lower openings of the mounting holes 101 have an adduction structure, so as to form limiting steps 102 in the mounting holes 101. The flange connector conductors 5 are mounted at the adduction openings. Flange structures of the flange connector conductors 5 form an anti-disengagement portion, so as to form a stop fit with the limiting steps 102 in the axial direction. In this way, the elastic terminals are prevented from falling from the lower openings of the mounting hole 101. Meanwhile, ends of the elastic terminals can be axially limited, such that lengths of the ends of the elastic terminals that are exposed from the mounting holes 101 are stable and consistent. In addition, a conductive contact area between the flange connector conductor 5 and another conductive terminal can be changed by adjusting an end area of the flange connector conductor. During assembly, the end conductive pieces 4 at the lower ends of the elastic terminals and the flange connector conductors 5 may be bonded together through conductive gel and then mounted in the mounting holes 101. Or, the flange connector conductors 5 may be placed in the mounting holes 101, and then the elastic terminals may be mounted in the mounting holes. Thus, the end conductive pieces 4 at the lower ends of the elastic terminals may be used in contact and cooperation with the flange connector conductors 5. After assembly, upper ends of the elastic terminals are directly exposed from the mounting holes 101, and the lower flange connector conductor 5 is exposed from the mounting hole 101 downward for electrical contact with other conductive terminals.

[0056] Example 3 of an electric connector of the present disclosure is as follows:

[0057] As shown in FIG. 16 and FIG. 17, the electric connector includes a mounting plate 1. The mounting plate 1 includes an upper plate and a lower plate that are separately arranged. The upper plate and the lower plate have an identical structure and are symmetrically arranged in a vertical direction. The upper plate and the lower plate are rectangular plates having a certain thickness. The rectangular plate is provided with four rows of through holes. Each row includes four through holes. The through holes extend vertically and penetrate the rectangular plates. After the upper plate and the lower plate are combined, the through holes on the two rectangular plates are in communication with each other in a one-to-one corresponding manner, and the two through holes that are in communication with each other vertically and correspondingly together constitute a complete mounting hole 101. Each of the mounting holes 101 is internally provided with an elastic terminal and two flange connector conductors 5, and the two flange connector conductors 5 are used as two conductive pieces, and are in conductive contact with end conductive pieces 4 at upper and lower ends of the elastic terminal respectively. The entire elastic terminal is accommodated in the mounting hole 101, and the two flange connector conductors 5 are exposed from the mounting hole 101 upward and downward respectively. An upper opening and a lower opening of the mounting hole 101 have an adduction structure, so as to form two limiting steps 102 in the mounting hole 101. Two flange connector conductors 5 are mounted at two adduction openings respectively. Flange structures of the two flange connector conductors 5 form anti-disengagement portions, so as to form a stop fit with the corresponding limiting steps 102 in the axial direction. In this way, the elastic terminal can be prevented from falling from the mounting hole 101. Meanwhile, two ends of the elastic terminal can be axially limited, such that lengths of the two flange connector conductors 5 at two ends that are exposed from the mounting hole 101 are stable and consistent. In addition, a conductive contact area between the flange connector conductor 5 and another conductive terminal can be changed by adjusting an end area of the flange connector conductor. During assembly, the end conductive pieces 4 at two ends of the elastic terminals and the flange connector conductors 5 can be bonded together through conductive gel and then mounted in the mounting holes 101. Or, the flange connector conductors 5 may be placed in the mounting holes 101, and then the elastic terminals may be mounted in the mounting holes 101. Thus, the end conductive pieces 4 at the two ends of the elastic terminals can be used in contact and cooperation with the two flange connector conductors 5 respectively. After assembly, the two flange connector conductors 5 at the two ends are exposed from the mounting hole 101 upward and downward respectively for electrical contact with other conductive terminals.

[0058] A specific structure of the elastic terminal is described in the examples of the elastic terminal of the present disclosure, and is only different in that flange connector conductors are added to two ends of a cylindrical body respectively. Other structures are identical and will not be repeated herein.

[0059] Example 1 of a conductive connection assembly with a circuit board of the present disclosure is as follows: As shown in FIG. 18, the conductive connection assembly with the circuit board includes an electric connector 9 and circuit boards 6 connected to the electric connector 9. The electric connector 9 is placed between the two circuit boards 6. The circuit boards 6 are fixed to a surface of a mounting plate of the electric connector 9 and are fixedly connected by fastening screws 7 and nuts 8, such that current transmission between the circuit boards 6 is implemented. A specific structure of the electric connector is described in the examples of the electric connector, and will not be repeated herein.

[0060] Example 2 of the conductive connection assembly with the circuit board is mainly different from Example 1 in that one side of the electric connector is connected to the circuit board, and the other side of the electric connector is not connected to the circuit board. An elastic terminal is exposed from a mounting hole and used for being connected to another suitable connector.

[0061] Finally, the following points should be explained: firstly, in the description of the present disclosure, it should be noted that unless otherwise specified and limited, the terms "mount", "connect" and "connection" should be broadly understood, which can be mechanical connection or electrical connection, communication between interiors of two elements, or direct connection; and "upper", "lower", "left" and "right" are used for indicating relative positional relationships. When an absolute position of the described object changes, the relative positional relationship may change.

[0062] Secondly, in the drawings of the disclosed examples of the present disclosure, only the structure related to the examples of the present disclosure is involved, and reference can be made to common designs for other structures. The same examples and different examples of the present disclosure can be combined with each other without conflict.

[0063] Finally, what are described above are merely the preferred examples of the present disclosure, and not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure should fall within the protection scope of the present disclosure.

Claims

1. An elastic terminal, comprising a cylindrical body (2), wherein the cylindrical body (2) comprises two or more strands of conductive filaments (3) spaced in a circumferential direction of the cylindrical body (2); each strand of the conductive filaments (3) and an adjacent strand of conductive filaments (3) are woven in a specific and identical braided direction, so as to form braided layers to form a cylindrical meshy cylinder structure; any two adjacent strands of conductive filaments (3) are matched with each other in a crossed manner, and the two strands of conductive filaments (3) matched with each other in a crossed manner are separated from each other immediately, to form a gap; each strand of the conductive filaments (3) has elasticity; and the meshy cylinder structure is internally provided with a hollow cylindrical structure, and two ends of the meshy cylinder structure each have a conductive contact portion that is only capable of abutting against one conductive terminal.

2. The elastic terminal according to claim 1, wherein each strand of the conductive filaments (3) has a wavy structure and extends in an axial direction of the cylindrical body (2) in a left-right staggered manner, and any two adjacent strands of conductive filaments (3) are snagged in a crossed manner through wave peaks and wave troughs that are close to each other.

3. The elastic terminal according to claim 2, wherein the two or more braided layers are provided, and the plurality of braided layers are stacked in a radial direction of the meshy cylinder structure.

4. The elastic terminal according to claim 1, wherein each strand of the conductive filaments (3) has a spiral structure and extends in an axial direction of the cylindrical body (2) in a spiral manner, and any two adjacent strands of conductive filaments (3) are stacked in a crossed manner.

5. The elastic terminal according to claim 4, wherein a radial convex portion (10) is formed at an overlapping position of each strand of the conductive filaments (3), and a radial concave portion (11) is formed at a non-overlapping position of each of the conductive filaments; and the two or more braided layers are provided, the plurality of braided layers are stacked in a radial direction of the meshy cylinder structure, and adjacent braided layers are stacked in a staggered manner, to make the radial convex parts (10) formed by one of the braided layers correspond to the radial concave parts (11) formed by the adjacent braided layer.

6. The elastic terminal according to any one of claims 1 to 5, wherein two ends of the meshy cylinder structure are provided with end conductive pieces (4), and outer end surfaces of the end conductive pieces (4) facing away from the meshy cylinder structure are provided with the conductive contact portions.

7. The elastic terminal according to claim 6, wherein the end conductive pieces (4) are hemispherical, and the two ends of the meshy cylinder structure are fixedly connected to flat ends of the end conductive pieces (4).

8. The elastic terminal according to claim 7, wherein a radial size of the end conductive pieces (4) is less than that of the meshy cylinder structure.

9. The elastic terminal according to any one of claims 1 to 5, wherein each strand of the conductive filaments (3) has two or more conductive filaments (3), and each of the conductive filaments (3) of an identical strand extends in parallel.

10. An electric connector, comprising a mounting base, wherein the mounting base is provided with a mounting hole (101) penetrating the mounting base, and the mounting hole (101) is internally provided with an elastic terminal, wherein the elastic terminal is the elastic terminal according to any one of claims 1 to 9.

11. The electric 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 piece that is in conductive contact with the elastic terminal and is exposed from the mounting hole (101).

12. The electric connector according to claim 10, wherein an opening on at least one end of the mounting hole (101) has an adduction structure, the conductive piece is mounted at the adduction opening in the mounting hole (101), and the conductive piece has an extension end that extends out of the adduction opening and an anti-disengagement portion that is engaged with the adduction opening in a locking manner.

13. The electric connector according to any one of claim 11 or 12, wherein an inner wall of the mounting hole (101) is provided with an inner convex ring (103) to tightly clamp the elastic terminal.

14. A conductive connection assembly with a circuit board, comprising an electric connector (9) and a circuit board (6) connected to the electric connector (9), wherein the electric connector (9) is the electric connector (9) according to any one of claims 10 to 13, the circuit board (6) is fixedly mounted on a surface of the mounting base of the electric connector (9), and a conductive contact of the circuit board (6) is in conductive contact with the elastic terminal.

Images