Elastic terminal and electrical connector

Abstract

The application relates to the technical field of electric connectors, and discloses an elastic terminal and an electric connector. The elastic terminal comprises a first part, an elastic part and a second part. In a first direction, the first part and the second part are respectively connected to two sides of the elastic part. When the elastic terminal is compressed in the first direction, the first part and the second part are in contact with each other, forming two parallel current paths. Both the two parallel current paths bypass the elastic part, significantly reducing the equivalent resistance of the current conduction path, relieving the heating problem of the elastic terminal under a large-current working condition, and improving the current transmission efficiency and the connection reliability. In a high-speed signal transmission working condition, due to the skin effect of high-speed signals, both the two parallel current paths bypass the elastic part, significantly shortening the signal transmission path, effectively relieving the crosstalk and attenuation problems of high-frequency signals.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and in particular to a resilient terminal and an electrical connector including the resilient terminal. Background Technology

[0002] Electrical connectors are widely used in consumer electronics, communication equipment, new energy, and other fields to achieve electrical connections between circuit boards or between a circuit board and functional modules. As a core component of electrical connectors, the flexible terminal needs to simultaneously meet the functional requirements of elastic contact and current conduction.

[0003] Under high-speed signal transmission conditions, existing flexible terminals have the following technical problems: the current is conducted through only a single path, the signal transmission path is long, and the signal crosstalk and attenuation are serious. In addition, the current is conducted through only a single path, the current density is high, and the terminal heats up seriously. Therefore, there is an urgent need for a new type of flexible terminal structure that can effectively shorten the signal transmission path and improve the ability to resist crosstalk and attenuation. Summary of the Invention

[0004] This application provides a flexible terminal and an electrical connector. By forming two parallel current paths when the flexible terminal is compressed, the current density is effectively reduced. Under high-speed signal transmission conditions, the signal transmission path can be effectively shortened, and the anti-crosstalk and attenuation capabilities can be improved. Furthermore, the parallel dual-path structure can alleviate the heat generation problem under high-speed, high-density, and high-current conditions, thereby improving current transmission efficiency and connection reliability.

[0005] In a first aspect, this application provides a resilient terminal, which includes a first part, an elastic portion, and a second part. Along a first direction, the first part and the second part are respectively connected to both sides of the elastic portion; when the resilient terminal is compressed along the first direction, the first part and the second part come into contact with each other, forming two parallel current paths.

[0006] In some embodiments, the first part includes a first contact portion located at one end of the elastic terminal along a first direction, the first contact portion being used for electrical contact with a first structure in the outside; the second part includes a second contact portion located at the other end of the elastic terminal along the first direction, the second contact portion being used for electrical contact with a second structure in the outside.

[0007] In some embodiments, the first part includes a first connecting portion connected between the first contact portion and the elastic portion, and the first connecting portion is located on a first side of the elastic terminal; the second part includes a second connecting portion connected between the second contact portion and the elastic portion, and the second connecting portion is located on a second side of the elastic terminal, the first side and the second side are respectively located on both sides of the elastic terminal in a second direction, wherein the second direction is perpendicular to the first direction.

[0008] In some embodiments, the first part includes a first shorting arm extending from the first contact portion toward the second connecting portion, the first connecting portion and the first shorting arm being respectively connected to both ends of the first contact portion, and the first part having a C-shaped or U-shaped structure; the second part includes a second shorting arm extending from the second contact portion toward the first connecting portion, the second connecting portion and the second shorting arm being respectively connected to both ends of the second contact portion, and the second part having a C-shaped or U-shaped structure; when the elastic terminal is compressed along the first direction, the first shorting arm and the second connecting portion contact each other to form a first current path, and the second shorting arm and the first connecting portion contact each other to form a second current path.

[0009] In some embodiments, the first connecting portion and the second connecting portion are arranged in a rotationally symmetrical manner about the center of the elastic terminal; and / or, the first shorting arm and the second shorting arm are arranged in a rotationally symmetrical manner about the center of the elastic terminal; along the second direction, the first shorting arm is located on the side of the second connecting portion away from the elastic portion, and the second shorting arm is located on the side of the first connecting portion away from the elastic portion.

[0010] In some embodiments, the elastic portion has an S-shaped bending structure extending along a first direction; when the first contact portion and the second contact portion are subjected to pressure along the first direction, the elastic portion undergoes elastic deformation and rotation to provide contact positive pressure to the first contact portion and the second contact portion respectively.

[0011] In some embodiments, in a first direction, the first contact portion has at least one first protrusion on the side opposite to the elastic portion, and the first protrusion is configured to contact a contact point of a first structure in the outside; and / or, in the first direction, the second contact portion has at least one second protrusion on the side opposite to the elastic portion, and the second protrusion is configured to contact a contact point of a second structure in the outside.

[0012] In some embodiments, the resilient terminal further includes a first limiting protrusion, which is disposed on the side of the first connecting portion away from the first shorting arm in a second direction; and / or, the resilient terminal further includes a second limiting protrusion, which is disposed on the side of the second connecting portion away from the second shorting arm in a second direction.

[0013] In some embodiments, the first portion, the elastic portion, and the second portion of the resilient terminal are integrally formed by planar blanking, and / or the resilient terminal comprises a copper alloy.

[0014] Secondly, this application provides an electrical connector, which includes an insulating base and a plurality of elastic terminals. The insulating base is provided with a plurality of mounting grooves, which are through in a first direction. One elastic terminal is disposed in one mounting groove, and a portion of the first part and a portion of the second part both extend out of the mounting groove in the first direction. The insulating base is provided with a limiting part, which limits and constrains the elastic terminal within the mounting groove. The elastic terminal can freely extend and retract in the mounting groove in the first direction to make electrical contact with the first structure and the second structure on both sides. When the electrical connector is installed between the first structure and the second structure on the outside, the first part is in elastic contact with the first structure on the outside, and the second part is in elastic contact with the second structure on the outside. Current is conducted between the first structure and the second structure on the outside through two parallel current paths.

[0015] In some embodiments, portions of the first contact portion and portions of the second contact portion both extend out of the mounting groove along a first direction.

[0016] Thirdly, this application provides an electrical connector, comprising: An insulating base is provided with several mounting slots, which are continuous along a first direction; the mounting slots include a first differential slot and a second differential slot, and the first plane where the first differential slot is located intersects with the second plane where the second differential slot is located; A plurality of elastic terminals, wherein one elastic terminal is disposed in a mounting slot, the elastic terminal includes a first differential terminal disposed in a first differential slot and a second differential terminal disposed in a second differential slot, the third plane where the first differential terminal is located intersects with the fourth plane where the second differential terminal is located, the first plane is parallel to or coincides with the third plane, and the second plane is parallel to or coincides with the fourth plane.

[0017] In some embodiments, the elastic terminal includes a plurality of differential terminal pairs, each differential terminal pair including a first differential terminal and a second differential terminal, and the plurality of differential terminal pairs are spaced apart in a first arrangement direction and a second arrangement direction, wherein the first arrangement direction and the second arrangement direction are perpendicular to each other and both are perpendicular to the first direction; the differential terminal pair includes a head and a tail, at the head, the first differential terminal and the second differential terminal are close to each other, and at the tail, the first differential terminal and the second differential terminal are far apart from each other.

[0018] In some embodiments, along the first arrangement direction, the head of one differential terminal pair and the tail of another adjacent differential terminal pair are arranged opposite each other, and the tail of one differential terminal pair and the head of another adjacent differential terminal pair are arranged opposite each other; along the second arrangement direction, the arrangement postures of two adjacent differential terminal pairs are the same.

[0019] The beneficial effects of this application are as follows: First, it effectively alleviates heat generation. After compression, the elastic terminal forms two parallel current paths, which splits the current and significantly reduces the current density of a single path, thereby reducing resistance loss and alleviating the heat generation problem under high-speed, high-density, and high-current conditions. Second, it improves current transmission efficiency. Both parallel paths bypass the elastic part, avoiding the current passing through the small cross-sectional area and circuitous path of the elastic part, reducing the overall current conduction resistance and improving current transmission efficiency. Third, it has a simple structure and low cost. The elastic terminal can be integrally formed from a flat metal plate without additional parts. The manufacturing process is mature, and the cost is significantly lower than that of the spring probe solution. Fourth, it has high contact reliability. The elastic part provides continuous positive pressure to ensure reliable electrical contact between the contact part and the external structure. The dual-path design reduces the temperature rise of the elastic terminal, helps maintain the elastic performance of the elastic part, and extends its service life. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the elastic terminal according to an embodiment of this application; Figure 2 This is another schematic diagram of the elastic terminal in an embodiment of this application; Figure 3 This is a schematic diagram of the elastic terminal being compressed according to an embodiment of this application; Figure 4 This is a schematic diagram of a resilient terminal according to another embodiment of this application; Figure 5 This is a partial cross-sectional view of the electrical connector according to an embodiment of this application; Figure 6 This is a partial cross-sectional view of an electrical connector according to another embodiment of this application; Figure 7 This is a partial cross-sectional view of an electrical connector according to another embodiment of this application; Figure 8 This is a schematic diagram of the electrical connector according to an embodiment of this application; Figure 9 This is a cross-sectional view of the electrical connector according to an embodiment of this application; Figure 10 This is a schematic diagram of the terminal arrangement in an existing electrical connector; Figure 11 This is a schematic diagram of an electrical connector according to yet another embodiment of this application; Figure 12 This is a schematic diagram of a differential terminal pair of an electrical connector according to another embodiment of this application; Figure 13 This is a schematic diagram of a differential terminal pair of an electrical connector surrounded by a grounding terminal, according to another embodiment of this application.

[0022] The attached icons are numbered as follows: 100. Flexible terminal; X, first direction; Y, second direction; Z, third direction; 10. First part; 11. First contact part; 111. First protrusion; 12. First connecting part; 121. First arc-shaped surface; 13. First short arm; 14. First limiting protrusion; 20. Elastic component; 30. Second part; 31. Second contact part; 311. Second protrusion; 32. Second connecting part; 321. Second arc-shaped surface; 33. Second short arm; 34. Second limiting protrusion; 200, Electrical connector; 201, Insulating base; 202, Mounting slot; 2021, First differential slot; 2022, Second differential slot; 203, Limiting part; 2031, First blocking part; 2032, Second blocking part; 300. First structure; 400. Second structure; 101. Differential terminal pair; 1011. First differential terminal; 1012. Second differential terminal; 1013. Head; 1014. Tail; K1. First arrangement direction; K2. Second arrangement direction; 102. Grounding terminal. Detailed Implementation

[0023] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0026] like Figure 1 and Figure 2 As shown, the elastic terminal 100 includes a first portion 10, an elastic portion 20, and a second portion 30. Along the first direction X, the first portion 10 and the second portion 30 are respectively connected to both sides of the elastic portion 20, with the elastic portion 20 located between the first portion 10 and the second portion 30, providing elastic support for the entire elastic terminal 100. When the elastic terminal 100 is compressed along the first direction X, as... Figure 3 As shown, the first part 10 and the second part 30 are close to each other and partially in contact, thereby forming two parallel current paths between the first part 10 and the second part 30.

[0027] Existing flexible terminals in the technology have only a single current path in the working state, resulting in a long signal transmission path, severe signal crosstalk and attenuation, and a high current density in the single path, leading to severe heat generation under high-speed and high-density current conditions. The flexible terminal 100 of this application, through the above-described structural design, allows the first part 10 and the second part 30 to contact each other in a compressed state, forming two parallel current paths. This allows for current diversion and conduction, significantly reducing the current density of the single path. Under high-speed signal transmission conditions, it effectively shortens the signal transmission path, improves anti-crosstalk and attenuation capabilities, and the parallel dual-path structure alleviates the heat generation problem under high-speed, high-density, and high-current conditions, improving current transmission efficiency and connection reliability.

[0028] In addition, the dual-path parallel structure of this application also has redundant conduction capability. When the conductivity of one path decreases due to poor contact, the other path can still maintain electrical connection, and the overall connection reliability is further improved.

[0029] In some embodiments, such as Figure 2 and Figure 9As shown, the first part 10 includes a first contact portion 11, which is located at one end of the elastic terminal 100 along the first direction X. The first contact portion 11 is used to form an electrical contact with the external first structure 300. The second part 30 includes a second contact portion 31, which is located at the other end of the elastic terminal 100 along the first direction X. The second contact portion 31 is disposed opposite to the first contact portion 11 and is used to form an electrical contact with the external second structure 400.

[0030] The first contact portion 11 and the second contact portion 31 are respectively located at both ends of the elastic terminal 100 along the first direction X. When the elastic terminal 100 is installed between the first structure 300 and the second structure 400, elastic contact can be achieved between the elastic terminal 100 and the external first structure 300 and the second structure 400. Both ends of the elastic terminal 100 in this application are designed for floating contact, eliminating the need for welding fixation and facilitating insertion, removal, maintenance, and replacement. Compared with the asymmetrical design of traditional terminals where one end is fixed and welded while the other end is in floating contact, the double floating contact design of the elastic terminal 100 in this embodiment can better adapt to the assembly tolerances of external structures and improve contact reliability.

[0031] In some embodiments, such as Figure 2 and Figure 7 As shown, in the first direction X, the first contact portion 11 has at least one first protrusion 111 on the side opposite to the elastic portion 20, and the first protrusion 111 protrudes outward. The first protrusion 111 is configured to make contact with the contact point of the external first structure 300.

[0032] In some embodiments, in the first direction X, the second contact portion 31 has at least one second protrusion 311 on the side opposite to the elastic portion 20, and the second protrusion 311 protrudes outward. The second protrusion 311 is configured to form contact with a contact point of the external second structure 400. The cross-sections of the first protrusion 111 and the second protrusion 311 are arc-shaped, and when they contact the planar contact point of the external structure, they can form a point contact or a line contact mode.

[0033] The design of the raised portion on the contact part creates a concentrated point or line contact between the contact part and the external structure, which has significant advantages over surface contact between planes: First, the concentrated contact generates strong contact pressure, which helps to pierce the oxide film and contaminant layer on the contact surface, ensuring good metal-to-metal electrical contact, thereby reducing the contact interface resistance and directly reducing heat generation at the contact interface; Second, the concentrated and definite contact position has low requirements for the flatness and roughness of the external structure surface, strong adaptability, and reduces the processing accuracy requirements of the mating structure; Third, during the compression of the elastic terminal, there is a slight relative sliding between the arc-shaped raised portion and the contact, which has a mechanical self-cleaning effect, removing trace amounts of oxides from the contact surface with each insertion and removal, maintaining a low contact resistance over a long period of time, and effectively preventing the problem of increased heat generation caused by the increase in contact resistance with the number of uses.

[0034] In some embodiments, the first protrusion 111 may be an arcuate protrusion, and / or the second protrusion 311 may be an arcuate protrusion.

[0035] It is worth noting that, such as Figure 7 As shown, in the first direction X, the first contact portion 11 has two first protrusions 111 on the side opposite to the elastic portion 20. In the first direction X, the second contact portion 31 has two second protrusions 311 on the side opposite to the elastic portion 20. This can improve the force stability when the first contact portion 11 contacts the first structure and improve the force stability when the second contact portion 31 contacts the second structure.

[0036] In some embodiments, such as Figure 2 and Figure 3 As shown, the first part 10 includes a first connecting part 12, which connects the first contact part 11 and the elastic part 20. The first connecting part 12 is located on a first side of the elastic terminal 100 in the second direction Y. The second direction Y is perpendicular to the first direction X. The second part 30 also includes a second connecting part 32, which connects the second contact part 31 and the elastic part 20. The second connecting part 32 is located on a second side of the elastic terminal 100 in the second direction Y. The first side and the second side are respectively located on both sides of the elastic terminal 100 in the second direction Y, that is, the first connecting part 12 and the second connecting part 32 are respectively located on the left and right sides of the elastic part 20, forming an asymmetrical side-mounted connection structure.

[0037] With the above structural arrangement, the first connecting part 12 and the second connecting part 32 are staggered in the second direction Y, creating structural conditions for the subsequent contact between the first shorting arm 13 and the second shorting arm 33 and the corresponding second connecting part 32 and the first connecting part 12 on the opposite side when compressed. At the same time, the lateral arrangement of the first connecting part 12 and the second connecting part 32 makes full use of the space of the elastic terminal 100 in the second direction Y, resulting in a compact overall structure that is conducive to small-pitch array arrangement and meets the design requirements of high-density connectors.

[0038] In some embodiments, such as Figure 2 and Figure 5 As shown, the first part 10 also includes a first shorting arm 13, which extends from the first contact portion 11 along the first direction X toward the second connecting portion 32. The first connecting portion 12 and the first shorting arm 13 are respectively connected to the two ends of the first contact portion 11 in the second direction Y, so that the first part 10 is in the form of a C-shaped or U-shaped structure, and the opening of the C-shaped or U-shaped structure faces the elastic portion 20.

[0039] In some embodiments, the second portion 30 further includes a second short arm 33, which extends from the second contact portion 31 toward the first connecting portion 12 in the first direction X. The second connecting portion 32 and the second short arm 33 are respectively connected to the two ends of the second contact portion 31 in the second direction Y, such that the second portion 30 is generally in a C-shaped or U-shaped structure, and the opening of the C-shaped or U-shaped structure faces the elastic portion 20.

[0040] like Figure 2 As shown, when the elastic terminal 100 is compressed along the first direction X, the first shorting arm 13 and the second connecting part 32 come into contact with each other in the first direction X to form a first current path; the second shorting arm 33 and the first connecting part 12 come into contact with each other in the first direction X to form a second current path. The two current paths are connected in parallel and jointly undertake the task of current conduction.

[0041] The first part 10 and the second part 30 are C-shaped or U-shaped, respectively. Their simple structure allows for direct forming from metal sheets, simplifying the manufacturing process and making them suitable for mass production. During compression, the first shorting arm 13 contacts the second connecting part 32, and the second shorting arm 33 contacts the first connecting part 12, forming two parallel current paths that bypass the elastic part 20. Neither of these paths passes through the small-section, circuitous elastic part 20, fundamentally solving the problem of increased resistance and aggravated heating caused by current passing through the elastic part in existing technologies.

[0042] It is worth noting that the establishment of this dual current path is automatically achieved during the compression process of the elastic terminal 100, without the need for additional operation or control. When the terminal is in an uncompressed state (e.g., during transportation or storage), such as Figure 2As shown, there is no contact between the first shorting arm 13 and the second connecting part 32, and between the second shorting arm 33 and the first connecting part 12.

[0043] In some embodiments, please refer to Figure 2 In the first direction X, both the first connecting part 12 and the second short arm 33 have a certain extension length, so that during the compression process, the first connecting part 12 and the second short arm 33 can form abutment electrical conduction at multiple positions, so that when moving within a certain distance in the first direction X, the first connecting part 12 and the second short arm 33 can maintain electrical conduction, thereby adapting to different compression distances of the first contact part 11 and the second contact part 31.

[0044] In further embodiments, please refer to Figure 4 The outer side of the first connecting portion 12 away from the elastic portion 20 is a first arc-shaped surface 121. The end of the second short arm 33 can slide against the first arc-shaped surface 121, which facilitates the contact between the second short arm 33 and the first connecting portion 12. The first arc-shaped surface 121 makes it easier for the end of the second short arm 33 to contact the first connecting portion 12, that is, the first arc-shaped surface 121 has a guiding function.

[0045] In further embodiments, please refer to Figure 4 In the second direction Y, the second shorting arm 33 extends in a direction closer to the elastic part 20, that is, the second shorting arm 33 extends inward at an angle. This allows the second shorting arm 33 to better abut against the outer side of the first connecting part 12. During the abutment movement, the first connecting part 12 exerts an outward force on the second shorting arm 33. In this way, the first connecting part 12 and the second shorting arm 33 can maintain good elastic abutment under a certain force, thereby stably transmitting current and avoiding poor contact between the first connecting part 12 and the second shorting arm 33 under bumpy and shaking conditions.

[0046] In some embodiments, please refer to Figure 1 In the first direction X, both the second connecting part 32 and the first shorting arm 13 have a certain extension length, so that during the compression process, the second connecting part 32 and the first shorting arm 13 can form abutment electrical conduction at multiple positions, so that when moving within a certain distance in the first direction X, the second connecting part 32 and the first shorting arm 13 can maintain electrical conduction, thereby adapting to the different compression distances of the first contact part 11 and the second contact part 31.

[0047] In further embodiments, please refer to Figure 4The outer side of the second connecting portion 32 away from the elastic portion 20 is a second arc-shaped surface 321. The end of the first short arm 13 can slide against the second arc-shaped surface 321, which facilitates the contact between the first short arm 13 and the second connecting portion 32. The second arc-shaped surface 321 makes it easier for the end of the first short arm 13 to contact the second connecting portion 32, that is, the second arc-shaped surface 321 has a guiding function.

[0048] In further embodiments, please refer to Figure 4 In the second direction Y, the first shorting arm 13 extends in a direction closer to the elastic part 20, that is, the first shorting arm 13 extends inward at an angle. This allows the first shorting arm 13 to better abut against the outer side of the second connecting part 32. During the abutment movement, the second connecting part 32 exerts an outward force on the first shorting arm 13. In this way, the second connecting part 32 and the first shorting arm 13 can maintain good elastic abutment under a certain force, thereby stably transmitting current and avoiding poor contact between the second connecting part 32 and the first shorting arm 13 under bumpy and shaking conditions.

[0049] In some embodiments, such as Figure 2 and Figure 6 As shown, the first connecting portion 12 and the second connecting portion 32 are arranged in a rotationally symmetrical manner about the center of the elastic terminal 100, and / or the first shorting arm 13 and the second shorting arm 33 are arranged in a rotationally symmetrical manner about the center of the elastic terminal 100. Overall, the elastic terminal 100 has a central rotationally symmetrical structure, and the rotation center of the elastic terminal 100 is also the rotation center of the elastic portion 20.

[0050] The rotational symmetry design ensures that when the elastic terminal 100 is compressed in the first direction X, the rotational deformation of the elastic part 20 is symmetrical, with balanced forces on both the upper and lower sides, as well as on both the left and right sides. This prevents the elastic terminal 100 from deflecting or tilting during compression, ensuring that the first shorting arm 13 and the second connecting part 32, and the second shorting arm 33 and the first connecting part 12, can make synchronous contact. This maximizes the simultaneous establishment of the two parallel current paths, achieving the designed current shunting effect and avoiding instantaneous current concentration and localized overheating caused by one path establishing before the other. The rotational symmetry structure also brings the advantage of good manufacturing consistency. Terminals with consistent dimensions can be mass-produced using the same stamping die, reducing the dispersion of contact performance caused by individual differences.

[0051] In some embodiments, please refer to Figure 2 and Figure 6 Along the second direction Y, the first short arm 13 is located on the outside of the second connecting portion 32 away from the elastic portion 20, and the second short arm 33 is located on the outside of the first connecting portion 12 away from the elastic portion 20.

[0052] With the above structural arrangement, the shorting arm is located on the outside of the corresponding connecting part away from the elastic part 20. On the one hand, the connection between the first connecting part 12 and the elastic part 20 will not affect the contact connection between the second shorting arm 33 and the first connecting part 12. Similarly, the connection between the second connecting part 32 and the elastic part 20 will not affect the contact connection between the first shorting arm 13 and the second connecting part 32. On the other hand, it maximizes the overlapping contact area between the first shorting arm 13 and the second connecting part 32, and between the second shorting arm 33 and the first connecting part 12 during compression, thereby reducing contact resistance and improving conductivity.

[0053] Furthermore, during the compression of the elastic terminal 100, the structure in which the first short arm 13 is located on the outside of the second connecting portion 32 away from the elastic portion 20, and the second short arm 33 is located on the outside of the first connecting portion 12 away from the elastic portion 20, allows the first short arm 13 to provide a supporting force on the second connecting portion 32 in the second direction Y, and the second short arm 33 to provide a supporting force on the first connecting portion 12 in the second direction Y. That is, the first short arm 13 and the second short arm 33 respectively clamp the second connecting portion 32 and the first connecting portion 12 in the second direction Y, thereby balancing the left and right forces on the elastic portion 20 located at the center of rotation in the second direction Y and reducing the amount of torsional offset.

[0054] In some embodiments, please refer to Figure 3 and Figure 6 The first connecting portion 12 serves as a transition section between the first contact portion 11 and the elastic portion 20, and the second connecting portion 32 serves as a transition section between the second contact portion 31 and the elastic portion 20. The cross-sectional areas of the first connecting portion 12 and the second connecting portion 32 can be set to be larger than the cross-sectional area of ​​the elastic portion 20. This helps reduce the local resistance of the circuit when the circuits on both sides are connected, further alleviating the heat generation problem. The elastic portion 20 mainly serves as a structure providing elastic force for deformation. The current flowing through the elastic portion 20 is very small; therefore, while ensuring the elastic force, the cross-sectional area of ​​the elastic portion 20 can be made slightly smaller.

[0055] Similarly, as the main conductive sections of the two circuits, the first shorting arm 13 and the second shorting arm 33 can also have their cross-sectional areas set to be larger than the cross-sectional area of ​​the elastic part 20. This can further reduce the resistance on the two current paths, reduce heat generation, and improve the quality of current transmission.

[0056] In some embodiments, such as Figure 2 and Figure 6As shown, the elastic portion 20 has an S-shaped curved structure extending along the first direction X. The S-shaped bend is composed of at least two arc-shaped segments bending in opposite directions, and the entire portion is arranged along the first direction X. When the first contact portion 11 and the second contact portion 31 are subjected to opposing pressure along the first direction X, as... Figure 3 As shown, during compression, the elastic part 20 undergoes elastic deformation, and the two arc segments of the S-shaped structure are stretched away from each other. At the same time, the elastic part 20 rotates around its center point (as shown). Figure 3 As shown in the diagram, when compressed, the elastic part 20 rotates clockwise and expands, and during the reset process, the elastic part 20 rotates counterclockwise and contracts. The superposition of elastic deformation and rotational motion enables the elastic part 20 to provide a large elastic stroke within a small structural size and to provide stable contact pressure to the first contact part 11 and the second contact part 31, respectively.

[0057] The S-shaped bending structure of the elastic part 20 has several advantages: First, the S-shaped structure has a large elastic stroke in the first direction X, which can adapt to a wider range of assembly tolerances, ensuring that the elastic terminal 100 can maintain sufficient contact pressure under different compression amounts. Second, the elastic part 20 undergoes both elastic deformation and rotation during compression. The synergistic effect of these two movements makes the positive pressure output more stable, and the linearity of the contact force variation curve with compression amount is good, facilitating accurate prediction and control of the contact force during engineering design. Third, the S-shaped structure matches the overall rotational symmetry design, ensuring that the deformation direction of the elastic part 20 and the mutual contact direction of the first part 10 and the second part 30 are both in the first direction X, resulting in good coordination and ensuring that the first and second current paths can be reliably established during compression. Fourth, the elastic part 20 only undertakes the function of elastic support and does not participate in current conduction. The cross-sectional dimensions of the elastic part 20 can be designed entirely for elastic performance optimization without considering the requirements of conductive cross-sectional area, greatly improving the freedom of elastic design.

[0058] In some embodiments, please refer to Figure 2 and Figure 6 The first connecting portion 12 is connected to the lower end of the elastic portion 20 in the first direction X, and the second connecting portion 32 is connected to the upper end of the elastic portion 20 in the first direction X. When the elastic terminal 100 is compressed in the first direction X, the first connecting portion 12 moves downward to pull the lower end of the elastic portion 20, and the second connecting portion 32 moves upward to pull the upper end of the elastic portion 20, so that the elastic portion 20 changes from the initial state to the stretched state to store elastic potential energy, so as to provide elastic force for the subsequent reset movement of the elastic terminal 100.

[0059] Compared to the structure of existing elastic terminals where the elastic portion is compressed under pressure, the elastic terminal 100 of this application, through the above-described structural arrangement, ensures that the elastic portion 20 is stretched under compression. On the one hand, the symmetrical stretching structure in the first direction X makes the deformation of the elastic portion 20 more balanced, avoiding unfavorable deformation. On the other hand, the elastic portion 20 being stretched allows it to maintain linear deformation in the first direction X as much as possible, avoiding twisting in the second direction Y. This ensures that the entire elastic terminal 100 undergoes elastic deformation in the first direction X, reducing the amount of slippage between the first contact portion 11 (or the first protrusion 111) and the second contact portion 31 (or the second protrusion 311) in the second direction Y.

[0060] In some embodiments, such as Figure 6 As shown, the resilient terminal 100 further includes a first limiting protrusion 14. In the second direction Y, the first limiting protrusion 14 is disposed on the side of the first connecting portion 12 opposite to the first shorting arm 13, that is, the first limiting protrusion 14 is located outside the first connecting portion 12 and protrudes outward. And / or, the resilient terminal 100 further includes a second limiting protrusion 34. The second limiting protrusion 34 is disposed on the side of the second connecting portion 32 opposite to the second shorting arm 33, that is, the second limiting protrusion 34 is located outside the second connecting portion 32 and protrudes outward.

[0061] The first limiting protrusion 14 and / or the second limiting protrusion 34 are used to abut against the corresponding limiting structure of the insulating base mentioned below, so as to limit the elastic terminal 100 in the first direction X, reliably holding the elastic terminal 100 in the mounting groove and preventing the elastic terminal 100 from coming out of the mounting groove 202 of the insulating base 201 in an uncompressed state. At the same time, the design of the first limiting protrusion 14 being located outside the first connecting portion 12 and the second limiting protrusion 34 being located outside the second connecting portion 32 does not occupy the internal space of the elastic terminal 100, does not affect the deformation stroke of the elastic portion 20, and does not interfere with the mutual contact process between the first portion 10 and the second portion 30 during compression. The structural design is reasonable, and the functional areas do not interfere with each other.

[0062] It is worth noting that the first limiting protrusion 14 and the second limiting protrusion 34 of the elastic terminal 100 are optional rather than mandatory. Even when the elastic terminal 100 is not provided with the first limiting protrusion 14 and the second limiting protrusion 34, the elastic terminal 100 can still be kept in the insulating seat.

[0063] As an example, please refer to Figure 7The insulating base 201 is provided with a first blocking portion 2031 and a second blocking portion 2032. The first blocking portion 2031 is located near the upper opening of the mounting groove 202, and the second blocking portion 2032 is located near the lower opening of the mounting groove 202. When the elastic terminal 100 is installed in the mounting groove 202, in the first direction X, the elastic terminal 100 can move up and down relative to the insulating base 201. When the second shorting arm 33 abuts against the first blocking portion 2031, the insulating base 201 restricts the elastic terminal 100 from continuing to move upward. When the first shorting arm 33 abuts against the second blocking portion 2032, the insulating base 201 restricts the elastic terminal 100 from continuing to move downward. This keeps the elastic terminal 100 within the insulating base 201. In the second direction Y, the first shorting arm 33 can abut against the side wall of the mounting groove 202, and the second shorting arm 33 can abut against the other side wall of the mounting groove 202 to restrict the movement of the elastic terminal 100.

[0064] In some embodiments, the first limiting protrusion 14 and the first connecting portion 12 are integrally stamped, and the second limiting protrusion 34 and the second connecting portion 32 are integrally stamped. This eliminates the need for additional fasteners or bonding processes, which simplifies the manufacturing process and avoids the risk of terminal detachment due to the failure of additional parts, thereby improving the reliability of the product under harsh conditions such as vibration and drop.

[0065] In some embodiments, the first portion 10, the elastic portion 20, and the second portion 30 of the elastic terminal 100 are integrally formed by planar blanking, and the whole is processed from a single metal sheet without welding or assembly, simplifying the processing. The planar blanking integral forming process makes the elastic terminal 100 free of solder joints and connectors, and the overall resistance distribution is uniform, avoiding the problem of localized concentrated heat generation caused by uneven contact resistance at connection points.

[0066] It is understood that the preparation process of the elastic terminal 100 in this application can be either direct precision stamping from a flat blank, or a combination of stamping and laser cutting. For example, the larger elastic portion 20 can be stamped, while the finer structures such as the first protrusion 111, the second protrusion 311, and the limiting portion can be laser cut. Of course, the elastic terminal 100 can also be manufactured using other processes.

[0067] In some embodiments, the resilient terminal 100 comprises a high-performance copper alloy. As some examples, the material of the resilient terminal 100 is selected from beryllium copper alloy, titanium copper alloy, copper-steel composite alloy, phosphor bronze, brass, or Cosson alloy. Specifically, beryllium copper alloy has a high elastic modulus, a large elastic limit, and a long fatigue life, making it suitable for applications requiring high insertion and removal cycles; phosphor bronze has good elasticity, corrosion resistance, and excellent stamping formability, offering the best overall cost-effectiveness, making it suitable for mass production applications; Cosson alloy has significantly higher conductivity than beryllium copper and phosphor bronze, resulting in lower equivalent resistance and lower heat generation under high current conditions, best meeting the technical objective of reducing heat generation in this application, making it suitable for high-current applications; brass has low cost and excellent machinability, making it suitable for applications where cost is highly sensitive.

[0068] In some embodiments, the surface of the resilient terminal 100 may be treated with nickel plating, copper plating, gold plating, etc., to improve corrosion resistance and contact performance. Plating treatment on the surface of the resilient terminal 100 can form a chemically stable metallic contact layer at the contact interface, further reducing contact resistance and minimizing heat generation at the contact interface.

[0069] The elastic terminal 100 in this embodiment of the application, through the above-described structural design, as follows: Figure 3 As shown, when the elastic terminal 100 is compressed, the specific paths of the two parallel current paths are as follows: The first current path is conducted sequentially through the first protrusion 111, the first contact 11, the first connecting part 12, the second shorting arm 33, the second contact 31, and the second protrusion 311. The second current path is conducted sequentially through the first protrusion 111, the first contact 11, the first shorting arm 13, the second connecting part 32, the second contact 31, and the second protrusion 311. The two current paths converge and diverge at the first contact 11, and converge and exit at the second contact 31. In the middle region, they are conducted separately through different connecting parts and shorting arms. Both parallel current paths bypass the elastic part 20. The elastic part 20 only undertakes the function of elastic support in the working state and does not participate in current conduction. This fundamentally solves the problems of limited cross-sectional area, circuitous path, high resistance, and severe heat generation caused by the elastic part in the prior art due to balancing elastic function and current conduction.

[0070] The equivalent resistance of two parallel paths is approximately half the resistance of a single path. Under the same current conditions, according to Joule's law, P=I 2R, heat generation can be reduced by about 50%, and the high current transmission efficiency and thermal management performance are significantly improved. From the perspective of current path analysis, the first current path establishes a connection across the elastic part 20 via the first connecting part 12 and the second shorting arm 33, and the second current path establishes a connection by directly contacting the second connecting part 32 via the first shorting arm 13. The two paths are structurally independent and redundant. If either path fails, the other path can still maintain a complete electrical connection, which greatly improves the reliability and stability of the elastic terminal 100 under complex working conditions.

[0071] This application provides another embodiment of an electrical connector 200, such as... Figure 6 , Figure 8 and Figure 9 As shown, the electrical connector 200 includes an insulating base 201 and a plurality of resilient terminals 100 as described in any of the above embodiments. The insulating base 201 is provided with a plurality of mounting slots 202, which extend through the insulating base 201 along a first direction X, and the plurality of mounting slots 202 are arranged in an array. One resilient terminal 100 is correspondingly mounted in one mounting slot 202. A portion of the first contact portion 11 and a portion of the second contact portion 31 extend from both ends of the mounting slot 202 along the first direction X, so as to contact the external first structure 300 and the second structure 400 respectively to form electrical conductivity.

[0072] When the electrical connector 200 is installed between the external first structure 300 (e.g., a functional module) and the external second structure 400 (e.g., a circuit board), the first contact portion 11 is in elastic contact with the first structure 300 under the elastic force of the elastic portion 20, and the second contact portion 31 is in elastic contact with the second structure 400. At this time, the elastic terminal 100 is in a compressed state, the first portion 10 and the second portion 30 are in contact with each other, and the current is conducted between the first structure 300 and the second structure 400 through two parallel first current paths and the first current path.

[0073] In some embodiments, please refer to Figure 5 and Figure 6 The insulating base 201 is provided with a limiting part 203, which limits and constrains the elastic terminal 100 within the mounting groove 202. The elastic terminal 100 can freely extend and retract within the mounting groove 202 along the first direction X to make electrical contact with the first structure 300 and the second structure 400 on both sides.

[0074] As an example, the limiting part 203 abuts against the first limiting protrusion 14 and the second limiting protrusion 34 of the elastic terminal 100 to limit and fix the elastic terminal 100 in the mounting groove 202, preventing the elastic terminal 100 from coming out of the mounting groove 202.

[0075] As an example, the limiting part 203 includes a first blocking part 2031, which is disposed near the upper opening of the mounting groove 202. The first blocking part 2031 engages with the first limiting protrusion 14 to prevent the elastic terminal 100 from coming out of the upper opening of the mounting groove 202.

[0076] As an example, the limiting part 203 includes a second blocking part 2032, which is disposed near the lower opening of the mounting groove 202. The second blocking part 2032 engages with the second limiting protrusion 34 to prevent the elastic terminal 100 from coming out of the lower opening of the mounting groove 202.

[0077] In some embodiments, please refer to Figure 6 Along the second direction Y, the length of the first blocking part 2031 is approximately equal to the length of the second blocking part 2032.

[0078] In some embodiments, please refer to Figure 5 Along the second direction Y, the length of the first blocking part 2031 is less than the length of the second blocking part 2032, which makes the upper opening width of the mounting groove 202 larger, making it easier for the elastic terminal 100 to be installed into the mounting groove 202 from the upper side, while the lower opening of the mounting groove 202 is relatively smaller, which can effectively prevent the elastic terminal 100 from coming out of the mounting groove 202 from the lower opening under the action of gravity.

[0079] Understandably, please refer to Figure 5 Since the second blocking part 2032 is longer in the second direction Y, the width of the lower opening of the mounting groove 202 is smaller than the width of the elastic terminal 100. Therefore, the second limiting protrusion does not need to be provided on the outside of the second connecting part 32. The limiting structure is directly formed by the connection between the second connecting part 32 and the second contact part 31. The limiting structure is engaged with the second blocking part 2032 to form a blocking effect.

[0080] More specifically, in the prior art, the terminal is partially fixed while the other part is an elastic cantilever beam structure. This causes the terminal contact point to move in an arc shape during elastic deformation, resulting in the terminal contact point sliding in the second direction Y. This requires the contact point on the first structure 300 to have a longer length in the second direction Y to ensure that the terminal contact part and the contact point on the first structure 300 remain electrically connected after compression. This is not conducive to the miniaturization design of the first structure 300.

[0081] In this application, the first part 10 and the second part 30 are respectively connected to the two ends of the elastic part 20. The first part 10 and the second part 30 are both movably disposed in the mounting groove 202 of the insulating base 201. They are not directly fixed to the insulating base 201. In this way, when compressed in the first direction X, the first part 10 and the second part 30 can move along the first direction X, thereby making the first contact part 11 and the second contact part 31 move linearly in the first direction X, with almost no offset movement in the second direction Y, or the offset in the second direction Y is very small (for example, the offset is less than 0.1mm), which can be ignored. In this way, the length of the contact on the first structure 300 can be made smaller, which is beneficial to the miniaturization design of the first structure 300.

[0082] The electrical connector 200 of this application integrates several resilient terminals 100 into an insulating base 201, forming an array arrangement structure. This allows for the simultaneous parallel transmission of multiple signals and power supplies, meeting the requirements of high-density board interconnection. The mounting groove 202, designed to extend through the first direction X, allows both the first contact portion 11 and the second contact portion 31 to protrude from the mounting groove 202, achieving two-sided elastic floating contact. This fully accommodates assembly tolerances and reduces the risk of contact failure due to assembly errors. The limiting portion 203 on the insulating base 201, in conjunction with the limiting protrusion of the resilient terminal 100, ensures that the resilient terminal 100 will not come out during the transportation, assembly, and use of the electrical connector 200, improving the reliability of the product at all stages. Overall, the electrical connector 200 inherits the technical advantages of the dual-path parallel conduction of the flexible terminal 100. In high-current applications, it can effectively alleviate heat generation, reduce system thermal load, and improve the electrical performance, thermal management level, and long-term reliability of the whole machine. It provides a simple, cost-controllable, and high-performance solution for high-density, high-current board interconnection in consumer electronics, communication equipment, and new energy fields.

[0083] Please see Figure 10 , Figure 10 A schematic diagram of an electrical connector in the prior art is shown. Figure 10 In this configuration, the elastic terminals are arranged in the same orientation in both the left-right and up-down directions, meaning that multiple elastic terminals are arranged in an array. Among these multiple elastic terminals are multiple pairs of differential terminal pairs 101', each pair containing two parallel elastic terminals. The inventors of this application have discovered that two parallel elastic terminals can form a planar capacitor structure. The large facing area and close distance between the two elastic terminals result in a large capacitive reactance, leading to a low differential characteristic impedance for the entire differential terminal pair, which is detrimental to signal transmission.

[0084] In view of the above problems, this application also provides another embodiment of the electrical connector 200, such as... Figures 11 to 13As shown, the electrical connector 200 includes an insulating base 201 and a resilient terminal 100. It is understood that the structure of the resilient terminal 100 can be the aforementioned resilient terminal structure or a resilient terminal structure in the prior art. In this embodiment, the structure of the resilient terminal is not specifically limited. In this embodiment, by changing the arrangement of the resilient terminals, the signal crosstalk prevention capability of the resilient terminals is improved, thereby enhancing the transmission quality of the electrical signal.

[0085] In some embodiments, please refer to Figure 11 The insulating base 201 is provided with a plurality of mounting slots 202, which penetrate the insulating base 201 along a first direction X. The plurality of mounting slots 202 are arranged in an array in a first arrangement direction K1 and a second arrangement direction K2. A resilient terminal 100 is correspondingly installed in a mounting slot 202. In the first direction X, the two ends of the resilient terminal extend from the two ends of the mounting slot 202 so as to contact the external first structure 300 and the second structure 400 respectively to form electrical conductivity. The first arrangement direction and the second arrangement direction are perpendicular to each other and both are perpendicular to the first direction.

[0086] Further, please refer to Figure 11 and Figure 12 The plurality of mounting slots 202 include a first differential slot 2021 and a second differential slot 2022, wherein a first plane M1 containing the first differential slot 2021 intersects a second plane M2 containing the second differential slot 2022. The plurality of elastic terminals 100 include a plurality of pairs of differential terminals 101. These pairs of differential terminals 101 are spaced apart in a first arrangement direction K1 and a second arrangement direction K2.

[0087] Each differential terminal pair 101 includes a first differential terminal 1011 and a second differential terminal 1012. The first differential terminal 1011 is disposed in the first differential slot 2021, and the second differential terminal 1012 is disposed in the second differential slot 2022. The third plane M3 where the first differential terminal 1011 is located intersects with the fourth plane M4 where the second differential terminal 1012 is located. The first plane M1 is parallel to or coincides with the third plane M3, and the second plane M2 is parallel to or coincides with the fourth plane M4.

[0088] With the above structural arrangement, each differential terminal pair 101 includes a head 1013 and a tail 1014. At the head 1013, the first differential terminal 1011 and the second differential terminal 1012 are close to each other, and the coupling distance between the first differential terminal 1011 and the second differential terminal 1012 is reduced, which can improve signal crosstalk. At the tail 1014, the first differential terminal 1011 and the second differential terminal 1012 are far apart from each other, which weakens the capacitive property of the entire differential terminal pair 101, thereby improving the characteristic impedance of the high-speed differential signal and thus improving the signal transmission quality.

[0089] In some embodiments, please refer to Figure 11 and Figure 12 Along the first arrangement direction K1, the head 1013 of one differential terminal pair 101a and the tail 1014 of the adjacent differential terminal pair 101b are positioned opposite each other, and the tail 1014 of one differential terminal pair 101a and the head 1013 of the adjacent differential terminal pair 101b are positioned opposite each other. This maximizes the head distance C between adjacent differential terminal pairs 101a and 101b in the first arrangement direction K1, thereby avoiding crosstalk between the signals of adjacent differential terminal pairs 101.

[0090] In some embodiments, please refer to Figure 11 and Figure 12 Along the second arrangement direction K2, adjacent differential terminal pairs 101 are arranged in the same orientation. That is, in the second arrangement direction K2, the head 1013 of one differential terminal pair 101a and the tail 1014 of the adjacent differential terminal pair 101c are positioned close together. This maximizes the center distance A and the head distance E between adjacent differential terminal pairs 101 in the second arrangement direction K2, thereby avoiding crosstalk between the signals of adjacent differential terminal pairs 101.

[0091] In some embodiments, combined with Figure 11 and Figure 13 The flexible terminal 100 may include a plurality of grounding terminals 102. Grounding terminals 102 may be distributed around each differential terminal pair 101. The grounding terminals 102 are configured to shield the enclosed differential terminal pair 101 from electromagnetic interference and also help to shield the signal crosstalk between two adjacent differential terminal pairs 101.

[0092] As an example, differential terminal pair 101 is a high-speed signal terminal pair. In other embodiments, refer to... Figure 11 In addition to the differential terminal pair 101 and the ground terminal 102, the figure may also include low-speed signal terminals or detection terminals, etc.

[0093] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A resilient terminal, characterized in that, include: Part 1, the elastic part, and Part 2; Along the first direction, the first part and the second part are respectively connected to both sides of the elastic part; When the elastic terminal is compressed along the first direction, the first part and the second part come into contact with each other, forming two parallel current paths.

2. The elastic terminal according to claim 1, characterized in that, The first part includes a first contact portion, which is located at one end of the elastic terminal along the first direction, and the first contact portion is used for electrical contact with a first structure in the outside world; The second part includes a second contact portion located at the other end of the elastic terminal along the first direction, and the second contact portion is used for electrical contact with a second structure in the outside.

3. The elastic terminal according to claim 2, characterized in that, The first part includes a first connecting portion, which is connected between the first contact portion and the elastic portion, and the first connecting portion is located on a first side of the elastic terminal; The second part includes a second connecting portion connected between the second contact portion and the elastic portion. The second connecting portion is located on a second side of the elastic terminal. The first side and the second side are respectively located on both sides of the elastic terminal in a second direction, wherein the second direction is perpendicular to the first direction.

4. The elastic terminal according to claim 3, characterized in that, The first part includes a first short arm that extends from the first contact portion toward the second connecting portion. The first connecting portion and the first short arm are respectively connected to the two ends of the first contact portion. The first part has a C-shaped or U-shaped structure. The second part includes a second shorting arm that extends from the second contact portion toward the first connecting portion. The second connecting portion and the second shorting arm are respectively connected to the two ends of the second contact portion. The second part has a C-shaped or U-shaped structure. When the elastic terminal is compressed along the first direction, the first shorting arm and the second connecting part come into contact with each other to form a first current path, and the second shorting arm and the first connecting part come into contact with each other to form a second current path.

5. The elastic terminal according to claim 4, characterized in that, The first connecting portion and the second connecting portion are arranged in a rotationally symmetrical manner about the center of the elastic terminal; and / or, the first shorting arm and the second shorting arm are arranged in a rotationally symmetrical manner about the center of the elastic terminal; Along the second direction, the first shortening arm is located on the side of the second connecting portion away from the elastic portion, and the second shortening arm is located on the side of the first connecting portion away from the elastic portion.

6. The elastic terminal according to any one of claims 2-5, characterized in that, The elastic portion has an S-shaped curved structure extending along the first direction; When the first contact portion and the second contact portion are subjected to pressure along the first direction, the elastic portion undergoes elastic deformation and rotation to provide positive contact pressure to the first contact portion and the second contact portion, respectively.

7. The elastic terminal according to claim 6, characterized in that, In the first direction, the first contact portion has at least one first protrusion on the side opposite to the elastic portion, and the first protrusion is configured to contact the contact point of the first structure in the outside. And / or, In the first direction, the second contact portion has at least one second protrusion on the side opposite to the elastic portion, and the second protrusion is configured to make contact with a contact point of a second structure in the outside.

8. The elastic terminal according to claim 4, characterized in that, The elastic terminal further includes a first limiting protrusion, which is disposed on the side of the first connecting portion away from the first shorting arm in the second direction. And / or, The elastic terminal also includes a second limiting protrusion, which is disposed on the side of the second connecting portion away from the second shorting arm in the second direction.

9. The elastic terminal according to any one of claims 1-5, characterized in that, The first part, the elastic part, and the second part of the elastic terminal are integrally formed by planar blanking; And / or, The resilient terminal comprises a copper alloy.

10. An electrical connector, characterized in that, Includes an insulating base and a plurality of resilient terminals as described in any one of claims 1 to 9. The insulating base is provided with a plurality of mounting grooves, which are through along the first direction; one of the elastic terminals is disposed in one of the mounting grooves, and a portion of the first part and a portion of the second part both extend out of the mounting groove along the first direction; The insulating base is provided with a limiting part, which limits and constrains the elastic terminal in the mounting groove. The elastic terminal can freely extend and retract in the mounting groove along the first direction to make electrical contact with the first and second structures on both sides. When the electrical connector is installed between the first external structure and the second external structure, the first part is in elastic contact with the first external structure, and the second part is in elastic contact with the second external structure. Current is conducted between the first external structure and the second external structure through the two parallel current paths.

11. An electrical connector, characterized in that, include: An insulating base is provided with a plurality of mounting slots, the mounting slots being through a first direction; the mounting slots include a first differential slot and a second differential slot, the first plane containing the first differential slot intersects with the second plane containing the second differential slot; A plurality of elastic terminals are provided, one of which is disposed in one of the mounting slots. The elastic terminal includes a first differential terminal disposed in the first differential slot and a second differential terminal disposed in the second differential slot. The third plane where the first differential terminal is located intersects with the fourth plane where the second differential terminal is located. The first plane is parallel to or coincides with the third plane, and the second plane is parallel to or coincides with the fourth plane.

12. The electrical connector according to claim 11, characterized in that, The elastic terminal includes several pairs of differential terminal pairs. Each pair of differential terminal pairs includes a first differential terminal and a second differential terminal. The multiple pairs of differential terminal pairs are spaced apart in a first arrangement direction and a second arrangement direction. The first arrangement direction and the second arrangement direction are perpendicular to each other and both are perpendicular to the first direction. The differential terminal pair includes a head and a tail, wherein at the head, the first differential terminal and the second differential terminal are close to each other, and at the tail, the first differential terminal and the second differential terminal are far apart from each other.

13. The electrical connector according to claim 12, characterized in that, Along the first arrangement direction, the head of one differential terminal pair and the tail of another adjacent differential terminal pair are arranged opposite each other, and the tail of one differential terminal pair and the head of another adjacent differential terminal pair are arranged opposite each other. Along the second arrangement direction, the arrangement postures of two adjacent differential terminal pairs are the same.

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