Conductive pin and connector

Abstract

The invention discloses a conductive pin and a connector, and relates to the technical field of connectors. Wherein the conductive pin comprises an elastic piece and a conductor layer, the conductor layer wraps the periphery of the elastic piece, and the conductor layer is configured to be capable of expanding and contracting in the radial direction of the elastic piece; when the conductive pin is inserted into the conductive sleeve, the conductor layer extrudes the elastic piece and shrinks in the radial direction of the elastic piece so as to enter the conductive sleeve. After the conductive pin is inserted into the conductive sleeve, the conductor layer is suitable for being integrally attached to the inner wall of the conductive sleeve under the external expansion elastic support of the elastic piece; and after the conductive pin is separated from the conductive sleeve, the conductor layer can be expanded to a state before insertion under the external expansion elastic action of the elastic piece. According to the technical scheme provided by the invention, the reliability of flexible connection between the conductive pin and the conductive sleeve is improved, and the reliability of the connector is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a conductive pin and a connector. Background Art

[0002] Taking a pin connector as an example, the pin connector, as a common connecting element in electronic devices, has been widely used in various electronic devices due to its separability.

[0003] Traditional pin connectors mainly consist of a solid conductor and a pin tube to achieve a separable connection mode of current from the pin to the pin tube. However, only limited points or rings of contact can be made along the axial direction of the solid conductor between the existing solid conductor and the pin tube, that is, only contact at a certain position can be achieved, with a small contact area and unstable contact, affecting the reliability of the connection. Summary of the Invention

[0004] The main object of the present invention is to propose a conductive pin and a connector, aiming to improve the reliability of the flexible connection between the conductive pin and the conductive sleeve, and further improve the reliability of the connector.

[0005] To achieve the above object, the conductive pin proposed by the present invention includes: An elastic member; and, A conductor layer wrapped around the outer periphery of the elastic member, and the conductor layer is configured to be expandable and contractible in the radial direction of the elastic member; When the conductive pin is inserted into the conductive sleeve, the conductor layer squeezes the elastic member and contracts in the radial direction of the elastic member to enter the conductive sleeve; after the conductive pin is inserted into the conductive sleeve, under the elastic support of the outward expansion of the elastic member, the conductor layer is adapted to be integrally attached to the inner wall of the conductive sleeve; after the conductive pin is separated from the conductive sleeve, the conductor layer can expand to the state before insertion under the outward expansion elastic action of the elastic member.

[0006] In one embodiment, one end of the conductor layer located at the head of the conductive pin is tapered in the direction away from the tail of the conductive pin.

[0007] In one embodiment, the conductor layer includes a plurality of strands of wire, and the plurality of strands of wire are arranged at intervals along the circumferential direction of the elastic member.

[0008] In one embodiment, one end of the plurality of strands of wire located at the head of the conductive pin is fixedly arranged.

[0009] In one embodiment, the conductive pin further includes a first fixing ring, and the first fixing ring is located at the head of the conductive pin and sleeved on the outer periphery of the plurality of strands of wire; or, One end of each adjacent pair of the wires located at the head of the conductive pin is welded to each other; or, A limiting groove is provided at one end of the elastic member located at the head of the conductive pin, and multiple strands of the wires are bent and clamped in the limiting groove; or, A sealing cover is integrally formed at one end of multiple strands of the wires located at the head of the conductive pin, so that a closed end is formed on the conductor layer.

[0010] In one embodiment, the conductive pin further includes a second fixing ring, and the second fixing ring is located at the tail of the conductive pin and sleeved on the outer periphery of multiple strands of the wires; or, One end of each adjacent pair of the wires located at the tail of the conductive pin is welded to each other.

[0011] In one embodiment, multiple layers of the conductor layer are arranged around the elastic member, and the wires of adjacent two layers of the conductor layer are arranged in a staggered manner.

[0012] In one embodiment, the elastic member is configured as an elastomer or a porous elastic material or an elastic hollow tube or a coil spring.

[0013] The present invention further provides a connector, including a first conductive sleeve, a second conductive sleeve and the conductive pin as described in any one of the above embodiments. The tail of the conductive pin is arranged in the first conductive sleeve, and the head of the conductive pin is inserted into the second conductive sleeve.

[0014] In one embodiment, the connector further includes a support member. One end of the conductor layer located at the tail of the conductive pin is sleeved on the outer periphery of the support member, and the support member cooperates with the first conductive sleeve to clamp the conductor layer; and / or, One end of the conductor layer located at the tail of the conductive pin is welded to the first conductive sleeve.

[0015] The technical solution of the present invention is to provide an elastic member and a conductor layer on the conductive pin. The conductor layer is wrapped around the outer circumference of the elastic member, and the conductor layer is configured to expand and contract in the radial direction of the elastic member. When the conductive pin is inserted into the conductive sleeve, the conductor layer squeezes the elastic member and contracts in the radial direction of the elastic body to enter the conductive sleeve. After the conductive pin is inserted into the conductive sleeve, under the elastic support of the elastic member expanding outward, the conductor layer is adapted to be integrally attached to the inner wall of the conductive sleeve. After the conductive pin is separated from the conductive sleeve, the conductor layer can expand to the state before insertion under the action of the elastic member expanding outward. Compared with the connector in the prior art that can only make limited point or annular contact, the technical solution of the present invention provides an elastic member inside the conductor layer, so that all the outer surfaces of the conductor layer around the axis of the conductive pin are closely attached to the inner wall of the conductive sleeve, realizing stable multi-point, multi-line and multi-surface contact, improving the reliability of the flexible connection between the conductive pin and the conductive sleeve, and further improving the reliability of the connector. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 Partial exploded view of an embodiment of the connector provided by the present invention; Figure 2 Partial exploded view of another embodiment of the connector provided by the present invention; Figure 3 Partial exploded view of yet another embodiment of the connector provided by the present invention; Figure 4 Partial exploded view of still another embodiment of the connector provided by the present invention; Figure 5 For Figure 1 Cross-sectional view of an embodiment; Figure 6 For Figure 2 Cross-sectional view of an embodiment; Figure 7 For Figure 3 Cross-sectional view of an embodiment; Figure 8 For Figure 4 Cross-sectional view of an embodiment; Figure 9 For Figure 4 Cross-sectional view of another embodiment.

[0018] Explanation of the reference numerals in the drawings: 110. First conductive sleeve; 111. Opening; 120. Second conductive sleeve; 121. Second receiving groove; 200. Conductive pin; 210. Conductor layer; 211. Conducting wire; 220. Elastic member; 221. Limiting groove; 230. First fixing ring; 240. First necking; 250. Sealing cover; 260. Second fixing ring; 270. Second necking; 300. Support member; 310. Limiting rib; 320. Protruding portion.

[0019] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0022] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present invention, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0023] Taking the pin connector as an example, as a common connecting element in electronic devices, the pin connector has been widely used in various electronic devices due to its separability.

[0024] The traditional pin connector mainly consists of a solid conductor and a pin tube to achieve a separable connection mode for current from the pin to the pin tube. However, only limited points or rings of contact can be made along the axial direction of the solid conductor between the existing solid conductor and the pin tube, that is, only contact at a certain position can be achieved, with a small contact area and unstable contact, which affects the reliability of the connection.

[0025] The present invention proposes a conductive pin and a connector to improve the reliability of the flexible connection between the conductive pin and the conductive sleeve, and further improve the reliability of the connector. The conductive pin and connector of the present invention can be applied to ordinary electronic devices, and can also be applied to high-speed connectors in AI servers, supercomputer servers, aerospace aircraft, etc.

[0026] Please refer to Figures 1 to 4 , in an embodiment, the conductive pin 200 includes an elastic member 220 and a conductor layer 210. Among them, the conductor layer 210 is wrapped around the outer periphery of the elastic member 220, and the conductor layer 210 is configured to expand and contract in the radial direction of the elastic member 220; when the conductive pin 200 is inserted into the conductive sleeve, the conductor layer 210 squeezes the elastic member 220 and contracts in the radial direction of the elastic member 220 to enter the conductive sleeve; after the conductive pin 200 is inserted into the conductive sleeve, under the outward elastic support of the elastic member 220, the conductor layer 210 is adapted to be integrally attached to the inner wall of the conductive sleeve; after the conductive pin 200 is separated from the conductive sleeve, the conductor layer 210 can expand to the state before insertion under the outward elastic action of the elastic member 220.

[0027] The conductive pin 200 is used to plug into the conductive sleeve to form a connector. The conductor layer 210 is the main part in the conductive pin 200 to achieve current transmission, and the elastic member 220 is used to provide elastic support for the conductor layer 210. After the conductive pin 200 is inserted into the conductive sleeve, the conductor layer 210 is in direct contact with the inner wall of the conductive sleeve to transmit current. In an embodiment, the conductor layer 210 is arranged around the outer peripheral surface of the elastic member 220 and forms a receiving cavity. In an embodiment, the size and shape of the elastic member 220 are adapted to the size and shape of the receiving cavity to abut against the cavity wall of the receiving cavity. Of course, in other embodiments, the size of the elastic member 220 can also be slightly larger than the size of the receiving cavity. The elastic member 220 has the ability of elastic deformation, which can ensure that the elastic member 220 is completely received in the receiving cavity. Among them, the conductor layer 210 has high toughness and can generate elastic deformation, so that the conductor layer 210 can expand and contract in the radial direction of the elastic member 220. The material of the conductor layer 210 can be configured as materials with high toughness and conductivity such as copper, gold or aluminum, and no specific limitation is made here. In an embodiment, the outer surface of the conductor layer 210 is smoothed so that there are no stumps on the outer surface of the conductor layer 210, and the contact interface between the conductor layer 210 and the conductive sleeve has a uniform transition, thereby reducing insertion and reflection losses and improving the high-frequency performance of the conductive pin 200.

[0028] In this way, the elastic member 220 provides elastic support for the conductor layer 210, which can reduce the wear when the conductor layer 210 contacts the conductive sleeve, facilitate plugging and unplugging, and can avoid elastic fatigue of the conductor layer 210, thereby improving the service life of the conductive pin 200. When the conductive pin 200 is inserted into the conductive sleeve, the elastic member 220 can drive the conductor layer 210 to closely fit with the inner wall of the conductive sleeve, so as to achieve multi-point, multi-line and multi-surface contact between the conductor layer 210 and the conductive sleeve, that is, all outer surfaces of the conductor layer 210 are completely in contact with the inner wall of the conductive sleeve, increasing the contact area and enhancing the current-carrying capacity of the contact interface, thereby improving the current-carrying capacity of the connector.

[0029] In the technical solution of the present invention, an elastic member 220 and a conductor layer 210 are provided on the conductive pin 200. Among them, the conductor layer 210 is wrapped around the outer periphery of the elastic member 220, and the conductor layer 210 is configured to expand and contract radially with respect to the elastic member 220; when the conductive pin 200 is inserted into the conductive sleeve, the conductor layer 210 squeezes the elastic member 220 and contracts radially with respect to the elastic member 220 to enter the conductive sleeve; after the conductive pin 200 is inserted into the conductive sleeve, under the outward expansion elastic support of the elastic member 220, the conductor layer 210 is adapted to be integrally in contact with the inner wall of the conductive sleeve; after the conductive pin 200 is separated from the conductive sleeve, the conductor layer 210 can expand to the state before insertion under the outward expansion elastic action of the elastic member 220. Compared with the connector in the prior art that can only make limited-point or annular contact, in the technical solution of the present invention, an elastic member 220 is provided inside the conductor layer 210, so that all outer surfaces of the conductor layer 210 around the axis of the conductive pin 200 are in close contact with the inner wall of the conductive sleeve, realizing stable multi-point, multi-line and multi-surface contact, improving the reliability of the flexible connection between the conductive pin 200 and the conductive sleeve, and further improving the reliability of the connector.

[0030] Please refer to Figures 1 to 4 , in an embodiment, one end of the conductor layer 210 located at the head of the conductive pin 200 is tapered in the direction away from the tail of the conductive pin 200.

[0031] In an embodiment, the outer diameter of one end of the conductor layer 210 located at the head of the conductive pin 200 gradually decreases in the direction away from the tail of the conductive pin 200. Please refer to Figure 1 and Figure 5 , in an embodiment, the conductor layer 210 is formed with a first contraction portion at one end located at the head of the conductive pin 200. The first contraction portion extends along the axial direction of the conductive pin 200, and the outer diameter of the first contraction portion is smaller than the inner diameter of the conductive sleeve and smaller than the outer diameter of the elastic member 220, so as to facilitate the insertion of the head of the conductive pin 200 into the conductive sleeve and ensure the normal function of the elastic member 220. Please refer to Figure 2 andFigure 6 In one embodiment, a first necking 240 is formed at one end of the conductor layer 210 located at the head of the conductive pin 200, and the diameter of the first necking 240 is smaller than the inner diameter of the conductive sleeve and smaller than the outer diameter of the elastic member 220. Please refer to Figure 2 and Figure 6 In one embodiment, the elastic member 220 is provided with an inclined surface at one end located at the head of the conductive pin 200. The inclined surface is inclined away from the axial direction of the conductive pin 200 in the direction away from the tail of the conductive pin 200. One end of the conductor layer 210 located at the head of the conductive pin 200 is arranged in conformity with the inclined surface, so that one end of the conductor layer 210 located at the head of the conductive pin 200 gradually contracts in the direction away from the tail of the conductive pin 200. Please refer to Figure 4 and Figure 8 In one embodiment, one end of the conductor layer 210 away from the tail of the conductive pin 200 contracts to form a closed end, and the outer diameter of the closed end is smaller than the inner diameter of the conductive sleeve and smaller than the outer diameter of the elastic member 220.

[0032] Further, please refer to Figure 1 and Figure 5 In one embodiment, a second necking 270 is formed at one end of the conductor layer 210 located at the tail of the conductive pin 200, and the forming method and structure of the second necking 270 are the same as those of the first necking 240. Refer to Figure 2 and Figure 6 In one embodiment, a second shrinking portion is formed at one end of the conductor layer 210 located at the tail of the conductive pin 200, and the forming method and structure of the second shrinking portion are the same as those of the first shrinking portion. In this way, one end of the conductor layer 210 located at the tail of the conductive pin 200 is tapered in the direction away from the head of the conductive pin 200, so as to further limit the axial deformation of the elastic member 220.

[0033] The technical solution of the embodiment of the present invention can limit the axial deformation of the elastic member 220 by shrinking one end of the conductor layer 210 located at the head of the conductive pin 200, so that the elastic member 220 mainly generates radial deformation when subjected to an external force, so as to drive the conductor layer 210 to expand radially along the elastic member 220, ensuring stable multi-point, multi-line and multi-surface contact between the conductive pin 200 and the conductive sleeve. In addition, the shrinkage setting of one end of the conductor layer 210 located at the head of the conductive pin 200 also facilitates the insertion of the head of the conductive pin 200 into the conductive sleeve, improving the convenience of insertion and extraction.

[0034] Please refer to Figures 1 to 4 In one embodiment, the conductor layer 210 includes a plurality of strands of wires 211, and the plurality of strands of wires 211 are arranged at intervals along the circumferential direction of the elastic member 220.

[0035] In one embodiment, all the wires 211 extend along the axial direction of the conductive pin 200 and are in close contact with the outer peripheral surface of the elastic member 220. The two ends of the wire 211 are respectively located at the head and the tail of the conductive pin. Of course, in other embodiments, the wire 211 may also be inclined relative to the axial direction of the conductive pin 200, and no limitation is made here. The material of the wire 211 may be copper, aluminum, gold or other materials to ensure that the wire 211 has good electrical conductivity and flexibility, and no limitation is made here. In another embodiment, the conductor layer 210 is configured as a cylindrical structure continuously arranged along the circumferential direction of the elastic member 220. The circumferential direction of the conductor layer 210 is provided with zigzag-shaped folds to ensure that the conductor layer 210 has an elastic margin for radial expansion and contraction along the elastic member 220, and no limitation is made to the conductor layer 210 here.

[0036] The technical solution of the embodiment of the present invention, by setting the conductor layer 210 as a plurality of spaced wires 211, ensures that the conductor layer 210 has an elastic margin for radial expansion and contraction along the elastic member 220, and further ensures that the elastic member 220 can drive the conductor layer 210 to be in close contact with the inner wall of the conductive sleeve to achieve stable and reliable contact. In addition, the wire 211 has a good current-carrying capacity, improving the current-carrying capacity of the conductive pin 200. The structure of the wire 211 is simple and the surface is smooth, which can ensure that there are no residual stumps on the surface of the conductor layer 210 and ensure the realization of the high-frequency performance of the conductive pin 200.

[0037] Please refer to Figures 1 to 4 , in one embodiment, one end of the plurality of wires 211 located at the head of the conductive pin 200 is fixedly arranged.

[0038] In one embodiment, one end of all the wires 211 located at the head of the conductive pin 200 is inclined in the direction away from the tail of the conductive pin 200 along the axial direction of the conductive pin 200, so that one end of the conductor layer 210 located at the head of the conductive pin 200 is tapered in the direction away from the tail of the conductive pin 200, and one end of all the wires 211 close to the axial direction of the conductive pin 200 is fixedly arranged.

[0039] Please refer to Figure 1 and Figure 5, in one embodiment, the conductive pin 200 further includes a first fixing ring 230. The first fixing ring 230 is located at the head of the conductive pin 200 and sleeved on the outer periphery of the stranded wire 211. Specifically, in one embodiment, the ends of the inclined portions of all the wires 211 abut against each other and extend along the axial direction of the conductive pin 200, so that a first constriction portion is formed at one end of the conductor layer 210 located at the head of the conductive pin 200. The first fixing ring 230 is sleeved on the first constriction portion and is fixed relative to the first constriction portion. In one embodiment, the outer diameter of the first fixing ring 230 is smaller than the inner diameter of the conductive sleeve and smaller than the outer diameter of the elastic member 220 to ensure that the conductive pin 200 can be inserted into the conductive sleeve and the elastic member 220 can function. Wherein, the first fixing ring 230 can be configured with metal, plastic, etc., and is not limited herein.

[0040] Please refer to Figure 2 and Figure 6 , in one embodiment, one end of each adjacent two wires 211 located at the head of the conductive pin 200 is welded to each other. Specifically, in one embodiment, the gap between adjacent two wires 211 gradually decreases in the direction away from the elastic member 220, and one end of all adjacent two wires 211 close to the axial direction of the conductive pin 200 is welded to each other, so that one end of all the wires 211 located at the head of the conductive pin 200 are connected to each other to form an annular structure to fix all the wires 211 into one body, and the annular shape makes the conductor layer 210 form a first necking 240 at one end located at the head of the conductive pin 200.

[0041] Please refer to Figure 3 and Figure 7 , in one embodiment, the elastic member 220 is provided with a limiting groove 221 at one end located at the head of the conductive pin 200, and the stranded wire 211 is bent and clamped in the limiting groove 221. Specifically, in one embodiment, one end of the elastic member 220 located at the head of the conductive pin 200 is recessed inward to form a limiting groove 221. The depth direction of the limiting groove 221 is consistent with the axial direction of the conductive pin 200, and an inclined surface is provided on the outer wall of the limiting groove 221 and is close to the groove opening. One end of the wire 211 located at the head of the conductive pin 200 is first inclined in the direction away from the elastic member 220 and then bent, so that one end of all the wires 211 located at the head of the conductive pin 200 is in an inverted hook shape, and the bent portions of all the wires 211 are firmly clamped in the limiting groove 221. In one embodiment, the outer peripheral surface of the elastic member 220 is provided with a groove, and the extending direction of the groove is parallel to the axial direction of the conductive pin 200, and a part of the inner peripheral surface of the wire 211 is embedded in the groove. Of course, in other embodiments, the outer peripheral surface of the elastic member 220 may not be provided with a groove, and is not limited herein.

[0042] Please refer to Figure 4 and Figure 8, in one embodiment, a plurality of wires 211 are integrally formed with a sealing cover 250 at one end of the head of the conductive pin 200, so that the conductor layer 210 forms a closed end. Specifically, in one embodiment, all the wires 211 are joined to each other at one end close to the axis of the conductive pin 200 and are fixed by welding to form the sealing cover 250, so that one end of the conductor layer 210 located at the head of the conductive pin 200 is formed into a closed end, thereby realizing the fixation of the wires 211.

[0043] The technical solution of the embodiment of the present invention fixes one end of all the wires 211 at the head of the conductive pin 200, avoiding the scattering of the wires 211, ensuring that the wires 211 can form the conductor layer 210 around the axis of the elastic member 220, and facilitating the insertion of the head of the conductive pin 200 into the conductive sleeve, improving the convenience of use of the conductive pin 200.

[0044] Please refer to Figures 1 to 4 , in one embodiment, one end of a plurality of wires 211 is fixedly arranged at the tail of the conductive pin 200.

[0045] Please refer to Figure 1 and Figure 5 , in one embodiment, the conductive pin 200 further includes a second fixing ring 260. The first fixing ring 230 is located at the tail of the conductive pin 200 and is sleeved on the outer periphery of a plurality of wires 211. Specifically, in one embodiment, one end of all the wires 211 located at the tail of the conductive pin 200 is inclined towards the axis of the conductive pin 200 in the direction away from the head of the conductive pin 200, so that one end of the conductor layer 210 located at the tail of the conductive pin 200 is tapered in the direction away from the head of the conductive pin 200. The ends of the inclined portions of all the wires 211 are abutted against each other and extend along the axis of the conductive pin 200, so that a second contraction portion is formed at one end of the conductor layer 210 located at the tail of the conductive pin 200. The second fixing ring 260 is sleeved on the second contraction portion and is fixed relative to the second contraction portion. In one embodiment, the outer diameter of the second fixing ring 260 is smaller than the inner diameter of the conductive sleeve and smaller than the outer diameter of the elastic member 220 to ensure that the conductive pin 200 can be placed in the conductive sleeve. Among them, the second fixing ring 260 can be configured with metal, plastic, etc., and is not limited here.

[0046] Please refer to Figures 6 to 8, in one embodiment, one ends of every two adjacent wires 211 located at the tail of the conductive pin 200 are welded to each other. Specifically, in one embodiment, one ends of all adjacent wires 211 located at the tail of the conductive pin 200 are connected to each other to form an annular structure, so that all the wires 211 are fixed into one body. In another embodiment, a support member 300 is further disposed in the accommodation cavity. The support member 300 is located at the tail of the conductive pin 200, and one ends of all the wires 211 located at the tail of the conductive pin 200 are welded to the outer periphery of the support member 300 to fix the wires 211.

[0047] In the technical solution of the embodiment of the present invention, by fixedly arranging one ends of all the wires 211 located at the tail of the conductive pin 200, the scattering of the wires 211 is further avoided, the compactness and stability of the overall structure of the conductive pin 200 are improved, and further the use reliability and convenience of the conductive pin 200 are improved.

[0048] Please refer to Figure 8 and Figure 9 , in one embodiment, multiple layers of conductor layers 210 are arranged around the elastic member 220, and the wires 211 of adjacent two layers of conductor layers 210 are arranged in a staggered manner.

[0049] In one embodiment, the multiple layers of conductor layers 210 are stacked layer by layer in the radial direction of the elastic member 220. In one embodiment, the cross-sectional shape of the wire 211 is configured as a circle, a wedge or a trapezoid. The cross-sectional shapes of all the wires 211 can be all the same or different. Among them, when the cross-sectional shapes of all the wires 211 are trapezoids, the contact area between adjacent two layers of conductor layers 210 is large, and the current-carrying capacity of the conductive pin 200 can be greatly improved. Of course, in other embodiments, the cross-sectional shape of the wire 211 can also be a rectangle or an irregular shape, etc., and no limitation is made here. Of course, in other implementations, the wires 211 of adjacent two layers of conductor layers 210 can also be stacked layer by layer or arranged in a cross manner, etc.; or, only one layer of conductor layer 210 is provided, and no limitation is made here.

[0050] In the technical solution of the embodiment of the present invention, by arranging multiple layers of conductor layers 210 and arranging the wires 211 of adjacent two layers of conductor layers 210 in a staggered manner, space can be saved, and reliable contact between the wires 211 can be realized in a staggered manner, effectively increasing the contact area, realizing reliable connection in a small size, and further improving the current-carrying capacity of the conductive pin 200. By setting the cross-sectional shape of the wire 211 as a circle, a wedge or a trapezoid, while increasing the contact area, stable contact between the wires 211 can be ensured, and the reliability of the conductive pin 200 is improved.

[0051] In one embodiment, the outer diameter of the wire 211 is greater than or equal to 0.06 mm and less than or equal to 0.8 mm; and / or, the length of the wire 211 is greater than or equal to 2 mm and less than or equal to 20 mm.

[0052] The length and outer diameter of the conductive pin 200 are inversely proportional to its cut-off frequency and transmission efficiency, that is, the smaller the length and outer diameter of the conductive pin 200, the higher the cut-off frequency and transmission efficiency of the conductive pin 200. In one embodiment, the outer diameter of the wire 211 is greater than or equal to 0.06 mm and less than or equal to 0.8 mm, and its length is greater than or equal to 2 mm and less than or equal to 20 mm, which can effectively reduce the length and outer diameter of the conductive pin 200, so that the cut-off frequency of the conductive pin 200 can reach 110 GHz or even higher, and the transmission efficiency can reach 224 Gbps or even higher. Of course, in other embodiments, the outer diameter and length of the wire 211 can also be flexibly set according to actual needs, and no limitation is made here.

[0053] The technical solution of the embodiment of the present invention can effectively reduce the length and outer diameter of the conductive pin 200 by limiting the outer diameter and length of the wire 211, so that the conductive pin 200 and the conductive sleeve can achieve reliable connection with small size, and improve the cut-off frequency and transmission efficiency of the conductive pin 200.

[0054] In one embodiment, the elastic member 220 is configured as an elastomer or a porous elastic material or an elastic hollow tube or a coil spring.

[0055] Specifically, in one embodiment, the elastomer is configured as at least one of silica gel, thermoplastic elastomer, thermoplastic rubber, thermosetting polyurethane (TPU), thermosetting polyurethane (PU), natural rubber, ethylene propylene diene monomer rubber, and hydrogenated styrene-based elastomer. Among them, silica gel has high elasticity and high temperature resistance. When the elastic member 220 is configured as an elastomer made of silica gel, the service life of the elastic member 220 is longer and the elastic deformation ability is stronger. No limitation is made on the specific material of the elastomer here. In one embodiment, the elastic member 220 can also be configured as a porous elastic material such as nickel-titanium alloy foam, aluminum foam, or carbon fiber-reinforced porous rubber. In still some other embodiments, the elastic member 220 can also be configured as an elastic hollow tube, such as but not limited to a plastic hollow tube, a thin-walled metal hollow tube, etc. In yet some other embodiments, the elastic member 220 can also be configured as a coil spring in the shape of a hairpin, and no limitation is made here.

[0056] The technical solution of the embodiment of the present invention can effectively prevent fracture and stress relaxation by setting the elastic member 220 as an elastomer or a porous elastic material, and improve the connection stability between the conductive pin 200 and the conductive sleeve while increasing the service life of the conductive pin 200.

[0057] Please refer to Figures 1 to 4, the present invention further provides a connector, which includes a first conductive sleeve 110, a second conductive sleeve 120, and the conductive pins 200 of each of the above embodiments. The tail of the conductive pin 200 is disposed in the first conductive sleeve 110, and the head of the conductive pin 200 is inserted into the second conductive sleeve 120. For the specific structure of the conductive pin 200, reference may be made to the above embodiments. Since this connector adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0058] The first conductive sleeve 110 and the second conductive sleeve 120 are the main parts of the connector for connecting with external components. Among them, the external components can be wires, cables, electronic devices, etc., and no specific limitations are made here. In one embodiment, the first conductive sleeve 110 and the second conductive sleeve 120 are respectively provided with a first receiving groove and a second receiving groove 121 for receiving the conductive pin 200. The tail of the conductive pin 200 is always restricted within the first receiving groove, that is, the tail of the conductive pin 200 does not protrude from the first receiving groove. The head of the conductive pin 200 is used to insert into the second receiving groove 121 and fit with the groove wall of the second receiving groove 121. When the head of the conductive pin 200 is inserted into the second receiving groove 121, the elastic member 220 drives the conductor layer 210 to closely fit with the groove wall of the second receiving groove 121 to achieve stable and reliable current transmission. In one embodiment, the groove wall of the second receiving groove 121 is smoothed to further reduce insertion and reflection losses and improve the high-frequency performance of the connector. In one embodiment, the materials of the first conductive sleeve 110 and the second conductive sleeve 120 are configured as copper, so that the first conductive sleeve 110 and the second conductive sleeve 120 have good electrical conductivity, can effectively reduce the losses generated during current transmission; and make the first conductive sleeve 110 and the second conductive sleeve 120 have good corrosion resistance and high temperature resistance to improve the service life of the connector. Of course, in other embodiments, the materials of the first conductive sleeve 110 and the second conductive sleeve 120 can also be made of heat-resistant and conductive materials such as aluminum and gold, and no limitations are made here.

[0059] Please refer to Figure 7 and Figure 8 , in one embodiment, the connector further includes a support member 300. One end of the conductor layer 210 located at the tail of the conductive pin 200 is sleeved on the outer periphery of the support member 300, and the support member 300 cooperates with the first conductive sleeve 110 to clamp the conductor layer 210.

[0060] In one embodiment, the support member 300 is disposed in the receiving cavity. One end of the support member 300 facing the head of the conductive pin 200 abuts against one end of the elastic member 220 facing the tail of the conductive pin 200, and the outer peripheral surface of the support member 300 fits against the inner wall of the receiving cavity. In another embodiment, a slot is provided at one end of the elastic member 220 facing the tail of the conductive pin 200, and the support member 300 is correspondingly provided with a protruding portion 320, and the protruding portion 320 is embedded in the slot. Of course, in other embodiments, a slot may also be provided in the support member 300 and a protruding portion 320 may be provided in the elastic member 220, and no limitation is made here. In one embodiment, a limiting rib 310 protrudes outward from the outer peripheral surface of the support member 300. The limiting rib 310 is used to directly fit against the inner wall of the receiving cavity to cooperate with the inner wall of the first conductive sleeve 110 to clamp the conductor layer 210. Of course, in other embodiments, the limiting rib 310 may also be provided on the inner wall of the first conductive sleeve 110; or, the limiting rib 310 is not provided, and no limitation is made here. Among them, the support member 300 can be configured as a metal part, etc., to perform hard interference with the conductor layer 210, and no limitation is made here.

[0061] Please refer to Figures 5 to 8 , in one embodiment, one end of the conductor layer 210 located at the tail of the conductive pin 200 is welded to the first conductive sleeve 110.

[0062] In one embodiment, an opening 111 is provided at one end of the first conductive sleeve 110 away from the head of the conductive pin 200, and the opening 111 communicates with the first receiving groove. Please refer to Figure 5 , in one embodiment, the size of the opening 111 is adapted to the size of the second fixing ring 260, and the second fixing ring 260 is welded to the opening 111. Of course, in other embodiments, the second fixing ring 260 can also be fixed to the first conductive sleeve 110 by bonding or clamping, etc., and no limitation is made here. Please refer to Figure 6 , in one embodiment, the second necking 270 of the conductor layer 210 is welded to the opening 111. While welding the conductor layer 210 to the first conductive sleeve 110, the second necking 270 is blocked to further limit the axial deformation of the elastic member 220. Of course, in other embodiments, the second necking 270 of the conductor layer 210 can also be fixed to the first conductive sleeve 110 by bonding or clamping, etc., and no limitation is made here.

[0063] Please refer to Figure 7 and Figure 8, in one embodiment, the support member 300 is located at the tail of the conductive pin 200 and cooperates with the first conductive sleeve 110 to clamp the conductor layer 210. At the same time, both the support member 300 and the conductor layer 210 are welded to the first conductive sleeve 110. Specifically, in one embodiment, one end of the wire 211 located at the tail of the conductive pin 200 is welded to the outer periphery of the support member 300, and the support member 300 and the conductor layer 210 are also simultaneously welded to the first conductive sleeve 110. Of course, in other embodiments, only the support member 300 may be directly welded to the first conductive sleeve 110, and no limitation is made here.

[0064] The technical solution of the embodiment of the present invention can provide support for the conductor layer 210 and increase the interference force between the conductor layer 210 and the first conductive sleeve 110 by setting the support member 300, ensuring the close contact between the conductive pin 200 and the first conductive sleeve 110, avoiding the tail of the conductive pin 200 from coming out of the first conductive sleeve 110, and improving the use reliability of the connector. The support member 300 can also limit the axial deformation of the elastic member 220 to further ensure that the elastic member 220 mainly generates radial deformation when subjected to an external force. By directly welding the conductor layer 210 to the first conductive sleeve 110, it can also avoid the tail of the conductive pin 200 from coming out of the first conductive sleeve 110, and further improve the connection stability between the conductive pin 200 and the first conductive sleeve 110, improving the use reliability and overall structural stability of the connector.

[0065] The above are only exemplary embodiments of the present invention, and do not limit the protection scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the protection scope of the present invention.

Claims

1. A conductive pin, characterized in that, Comprising: An elastic member; And, A conductor layer, wrapped around the outer periphery of the elastic member, the conductor layer being configured to be expandable and contractible in the radial direction of the elastic member; When the conductive pin is inserted into the conductive sleeve, the conductor layer squeezes the elastic member and contracts in the radial direction of the elastic member to enter the conductive sleeve; after the conductive pin is inserted into the conductive sleeve, under the outward expansion and elastic support of the elastic member, the conductor layer is adapted to be integrally attached to the inner wall of the conductive sleeve; after the conductive pin is separated from the conductive sleeve, the conductor layer can expand to the state before insertion under the outward expansion and elastic action of the elastic member.

2. The conductive pin according to claim 1, wherein One end of the conductor layer located at the head of the conductive pin is tapered in the direction away from the tail of the conductive pin.

3. The conductive pin according to claim 1, wherein The conductor layer includes a plurality of wires, and the plurality of wires are arranged at intervals along the circumferential direction of the elastic member.

4. The conductive pin according to claim 3, wherein The conductive pin further includes a first fixing ring, the first fixing ring being located at the head of the conductive pin and sleeved on the outer periphery of the plurality of wires; or, One end of each adjacent two of the wires located at the head of the conductive pin is welded to each other; or, A limiting groove is provided at one end of the elastic member located at the head of the conductive pin, and the plurality of wires are all bent and clamped in the limiting groove; or, A sealing cover is integrally formed at one end of the plurality of wires located at the head of the conductive pin, so that the conductor layer forms a closed end.

5. The conductive pin according to claim 3, wherein The conductive pin further includes a second fixing ring, the second fixing ring being located at the tail of the conductive pin and sleeved on the outer periphery of the plurality of wires; or, One end of each adjacent two of the wires located at the tail of the conductive pin is welded to each other.

6. The conductive pin according to claim 3, wherein, The conductor layer is provided with multiple layers around the elastic member, and the wires of adjacent two layers of the conductor layer are arranged in a staggered manner.

7. The conductive pin according to claim 6, wherein, The cross-sectional shape of the wire is configured to be circular or wedge-shaped or trapezoidal.

8. The conductive pin according to any one of claims 1 to 7, characterized in that, The elastic member is configured as an elastomer or a porous elastic material or an elastic hollow tube or a coil spring.

9. A connector, characterized in that, Comprising a first conductive sleeve, a second conductive sleeve and a conductive pin as described in any one of claims 1 to 8, the tail of the conductive pin is provided in the first conductive sleeve, and the head of the conductive pin is inserted into the second conductive sleeve.

10. The connector according to claim 9, characterized in that, The connector further includes a support member, one end of the conductor layer located at the tail of the conductive pin is sleeved on the outer periphery of the support member, and the support member cooperates with the first conductive sleeve to clamp the conductor layer; and / or, One end of the conductor layer located at the tail of the conductive pin is welded to the first conductive sleeve.

Images