Welding-free terminal

Abstract

The utility model relates to a welding-free terminal. The welding-free terminal comprises a first inserting part, a limiting stopping part and an elastic fixing part, and the first inserting part is used for being inserted into a PCB connecting hole. The limiting stop part is used for limiting the depth of the first inserting part inserted into the connecting hole. The elastic fixing part is connected with the first cone plug and the limiting stop part, is inserted into the connecting hole together with the first inserting part, and can elastically stretch out and draw back in the elastic direction perpendicular to the hole wall of the connecting hole so as to be fixedly connected with the connecting hole through elastic force; the elastic fixing part comprises an annular side plate and an elastic supporting plate supported in the annular side plate, the outer edge of the elastic supporting plate is connected with the inner wall of the annular side plate, and the plate face of the elastic supporting plate is in an arc shape in the elastic force direction so that elastic force can be generated when the plate face of the elastic supporting plate is extruded in the elastic force direction. According to the invention, the elastic supporting plate is matched with the annular side plate and the limiting stop part, so that the welding-free terminal is accurately and stably connected with the PCB, and the service life of the welding-free terminal is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to a solder-free terminal. Background Art

[0002] In the existing technology, with the development of the new energy vehicle industry, people have higher and higher requirements for the reliability and comfort of new energy vehicles. New energy vehicle connectors and their terminals are the hubs for realizing current transmission, and are responsible for the conversion of current transmission and signal transmission of new energy vehicle circuits. At present, the connection between the connector and the circuit module is mainly through soldering. However, due to the defects of soldering connection such as high cost, low efficiency and low transmission reliability, the comparative document CN 212392401 U proposes a solder-free terminal to realize the connection between the connector and the circuit board. However, due to the structural design of the solder-free terminal, the terminal insertion force and extraction force are relatively small. When the new energy vehicle is driving on a bumpy road, it is easy to cause the connector terminal to fall off from the circuit board, thereby causing the new energy vehicle to malfunction or fail, and even cause traffic safety accidents in serious cases.

[0003] How to design solderless terminals to improve the reliability of terminal connection has always been a hot topic in non-welding connectors for new energy vehicles. Therefore, it is necessary to solve problems such as easy connection and reliable connection of solderless terminals. Utility Model Content

[0004] The purpose of the utility model is to provide a solder-free terminal, aiming to solve the problem of easy and reliable connection of the solder-free terminal.

[0005] To solve the above technical problems, a solderless terminal is provided, comprising a first plug portion, comprising a first conical plug, the small end of the first conical plug extending outwardly to be inserted into a connection hole of a PCB board to connect the PCB board; a limit stop portion, used to limit the depth of insertion of the first conical plug into the connection hole; an elastic fixing portion, connecting the first conical plug and the limit stop portion, the elastic fixing portion being used to be inserted into the connection hole together with the first conical plug, and being able to elastically expand and contract in a direction of elastic force perpendicular to the wall of the connection hole to be fixedly connected to the connection hole by elastic force; the elastic fixing portion comprising an annular side plate and an elastic support plate supported inside the annular side plate, the elastic support plate being connected to the inner wall of the annular side plate in one or more arc sections, and the total curvature of each arc section being less than 1 / π, so that the surface of the elastic support plate generates elastic force when squeezed by the annular side plate; the elastic support plate comprising a first support plate and a second support plate, the arc protrusions of the first support plate and the second support plate being in opposite directions; and the surface projection of the elastic support plate is triangular.

[0006] Furthermore, the first plug-in portion further includes a first connecting column for connecting the first cone plug and the elastic fixing portion.

[0007] Furthermore, the annular side plate is formed by connecting the upper and lower ends of the first side plate and the second side plate; the elastic support plate includes a first support plate and a second support plate; the top angles of the first support plate and the second support plate correspond to the upper and lower angles of the annular side plate respectively, the side edges of the first support plate and the second support plate are respectively connected to the inner wall of the annular side plate, and the bottom edges of the first support plate and the second support plate are arranged parallel to each other.

[0008] Furthermore, the arc-shaped protrusions of the first support plate and the second support plate are in opposite directions.

[0009] Furthermore, the surface of the elastic support plate is curved into an arc shape.

[0010] Furthermore, the elastic support plate is connected between the first side plate and the second side plate in a wave shape; wherein, the elastic support plate is connected between the first side plate and the second side plate in an "S" shape, or the elastic support plate is connected between the first side plate and the second side plate in a "W" shape.

[0011] Furthermore, the bottom edges of the first support plate and the second support plate obliquely intersect with the annular side plate.

[0012] Furthermore, the first cone plug is a square cone or a circular cone.

[0013] Furthermore, a distance between the bottom edges of the first support plate and the second support plate is greater than 1 mm.

[0014] Furthermore, the position limiting stop portion includes a stop surface, and the stop surface corresponds to the annular side plate and is perpendicular to the annular side plate along the direction of insertion into the connecting hole.

[0015] Furthermore, the solder-free terminal also includes: a second plug-in portion, opposite to the first plug-in portion, connected to the limit stop portion, the second plug-in portion includes a second conical plug, and the extension direction of the second conical plug is the opposite direction of the extension of the first conical plug.

[0016] Furthermore, the second plug-in portion further includes a second connecting column for connecting the second cone plug and the limit stop portion.

[0017] The implementation of the present invention will have the following beneficial effects:

[0018] 1. The solderless terminal in this embodiment can be accurately inserted into the connecting hole of the PCB board because the first plug-in portion includes a first conical plug. Since the annular side plate can elastically expand and contract in the direction perpendicular to the hole wall of the connecting hole, when the elastic fixing portion is inserted into the connecting hole, the hole wall of the connecting hole squeezes the annular side plate. The annular side plate is squeezed by the hole wall of the connecting hole and contracts, generating an elastic force that is applied in the reverse direction to the hole wall of the connecting hole, so that the solderless terminal is tightly connected to the hole wall of the connecting hole through the extrusion force, so that the solderless terminal will not move during use, thereby increasing the tightness of the connection.

[0019] 2. The solder-free terminal in this embodiment includes a limit stop portion. When the terminal reaches the correct position during insertion into the connection hole of the PCB board, the limit stop portion abuts against the end face of the connection hole of the PCB board, thereby ensuring the accuracy of the insertion position and thus ensuring the accuracy of the connection.

[0020] 3. The solderless terminal in this embodiment utilizes the triangular shape of the elastic support plate, which provides stability in connection. When the annular side plate is squeezed, the elastic support plate elastically deforms under the pressure exerted by the annular side plate, while simultaneously applying a reverse elastic force to the annular side plate. By leveraging the stability of the triangular shape, the elastic support plate is less susceptible to breakage or fatigue damage, thereby extending the service life of the solderless terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of a solderless terminal from one perspective according to an embodiment;

[0023] Figure 2 Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 A schematic structural diagram of a solderless terminal according to an embodiment from another perspective;

[0025] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0026] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the middle edge CC;

[0027] Figure 6 This is a schematic structural diagram of a solderless terminal according to another embodiment;

[0028] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of DD;

[0029] Figure 8 A schematic structural diagram of a solder-free terminal according to another embodiment;

[0030] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure along the EE.

[0031] Reference numerals:

[0032] 100, solderless terminal; 110, first plug-in portion; 111, first conical plug; 112, first connecting column; 120, limit stop portion; 121, stop surface; 130, elastic fixing portion; 131, annular side plate; 1311, first side plate; 1312, second side plate; 132, elastic support plate; 1321, first support plate; 1322, second support plate; 140, second plug-in portion; 141, two-conical plug; 142, second connecting column. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Combine Figures 1 to 9As shown, the present invention discloses a solderless terminal 100. The solderless terminal 100 includes a first plug-in portion 110, a limit stop portion 120, and an elastic fixing portion 130. The first plug-in portion 110 includes a first conical plug 111 and a first connecting column 112. The small end of the first conical plug 111 extends outward to be inserted into a connection hole of a PCB board to connect to the PCB board. The first plug-in portion 110 is inserted into the connection hole of the PCB board, and the elastic fixing portion 130 is connected to the first plug-in portion 110. The elastic fixing portion 130 is used to be inserted into the connection hole together with the first conical plug 111 and can elastically expand and contract in a direction perpendicular to the wall of the connection hole to securely connect to the connection hole through elastic force. The elastic fixing portion 130 can elastically expand and contract to press the wall of the connection hole outward to achieve a tight fit with the wall of the connection hole. The elastic fixing portion 130 includes an annular side plate 131 and an elastic support plate 132 supported within the annular side plate 131. The annular side plate 131 includes upper and lower ends and an arcuate sidewall. The outer edge of the elastic support plate 132 is connected to the inner wall of the arcuate sidewall of the annular side plate 131. The surface of the elastic support plate 132 forms one or more arc segments along the direction of the elastic force, connecting to the inner wall of the annular side plate 131. The total curvature of each arc segment is less than 1 / π. When the elastic fixing portion 130 is inserted into the connecting hole, the connecting hole squeezes the annular sidewall, which in turn squeezes the elastic support plate 132. The curved surface of the elastic support plate 132 generates an elastic force, which applies a reverse extrusion force to the annular side plate 131, squeezing the annular side plate 131 until it is tightly connected to the wall of the connecting hole, thereby securing the first plug-in portion 110. The triangular shape of the elastic support plate 132 provides stability. When squeezed and bent, the triangular elastic support plate 132 will not break or deform due to its special properties. This increases the service life of the elastic support plate 132 while ensuring the compressive force of the elastic support plate 132 on the annular sidewall. The stopper 120 is used to limit the insertion depth of the first conical plug 111 into the connection hole. The stopper 120 is connected to the elastic fixing portion 130. After the elastic fixing portion 130 is inserted into the connection hole, the stopper 120 corresponds to the hole opening. As the elastic fixing portion 130 increases in insertion depth, the distance between the stopper 120 and the PCB surface decreases. When the first plug-in portion 110 reaches the specified insertion depth, the stopper 120 contacts the PCB surface at the hole opening, preventing further movement of the first plug-in portion 110.

[0037] Combine Figures 1 to 5As shown, in one embodiment, the annular side plate 131 is formed by connecting the upper and lower ends of the first side plate and the second side plate 1312. The plate surfaces of the first side plate 1311 and the second side plate 1312 extend in the front-to-back direction. The first side plate 1311 and the second side plate 1312 are both arc-shaped. After the upper and lower ends of the first side plate and the second side plate 1312 are connected, the middle parts of the first side plate 1311 and the second side plate 1312 are relatively and oppositely raised to form a ring shape. The elastic support plate 132 is arranged inside the annular side plate 131, and in the front-to-back direction, the width of the elastic support plate 132 is smaller than the width of the annular side plate 131 to prevent the elastic support plate 132 from protruding outside the annular side plate 131. The elastic support plate 132 includes a first support plate 1321 and a second support plate 1322. The top corner of the first support plate 1321 is connected to the upper connecting corner of the first and second side panels 1311, 1312. The two sides of the top corner of the first support plate 1321 are connected to the two sides of the upper connecting corner of the first and second side panels 1311, 1312, respectively, to support the first and second side panels 1312. The top corner of the second support plate 1322 is connected to the lower connecting corner of the first and second side panels 1311, 1312. The two sides of the top corner of the second support plate 1322 are connected downward to the two sides of the lower connecting corner of the first and second side panels 1311, 1312, respectively, to support the first and second side panels 1312. The bottom edges of the first and second support plates 1321, 1322 are relatively parallel and spaced apart.

[0038] Combine Figures 1 to 5 As shown, in one embodiment, the arc-shaped protrusions of the first support plate 1321 and the second support plate 1322 are in opposite directions. The bottom edge of the first support plate 1321 is located in front of the bottom edge of the second support plate 1322, that is, the first support plate 1321 protrudes forward. When the annular side plate 131 is inserted into the connection hole and is squeezed by the connection hole wall, the annular side plate 131 applies inward pressure to the first support plate 1321, causing the arc of the first support plate 1321 to protrude forward. The first support plate 1321 applies an outward supporting force to the annular side plate 131, and the outward supporting force is deflected backward along the arc direction of the first support plate 1321. The top corners and side edges of the first support plate 1321 and the second support plate 1322 are on the same horizontal plane. The surface and bottom edge of the first support plate 1321 protrude forward, while the surface and bottom edge of the second support plate 1322 protrude backward. When annular side plate 131 is inserted into the connection hole and squeezed by the wall of the connection hole, annular side plate 131 applies inward pressure to second support plate 1322, causing the rearward convex curvature of the second support plate 1322 to increase. Second support plate 1322 then applies an outward supporting force to annular side plate 131, and this outward supporting force is deflected forward along the arc of second support plate 1322. The forces exerted on annular side plate 131 by first support plate 1321 and second support plate 1322 are symmetrically and oppositely directed, ensuring balanced force on annular side plate 131 and ensuring the shape stability and lifespan of the connection terminal.

[0039] Combine Figures 1 to 5 As shown, in one embodiment, the elastic support plate 132 is curved in an arc shape, and the total curvature of the elastic support plate 132 is less than 1 / π. According to the concept of total arc curvature, curvature refers to the degree of curvature of a long rolled product (section, rod, or tube) in the longitudinal direction. The chord height per meter of curvature is the curvature per meter, and the ratio of the total chord height of the total length to the total length is the total curvature. Because the elastic support plate 132 has a triangular surface, the vertex and the sides of the vertex correspond to the vertex and side panels of the annular side panel 131, respectively, and the middle portion is curved in an arc shape. Since the sides of the elastic support plate 132 adjacent to the vertex support the first and second side panels 1312, respectively, the minor arc shape of the elastic support plate 132 allows the elastic force exerted by the elastic support plate 132 on the annular side panel 131 to extend along the arc surface, allowing the first support panel 1321 and the second support panel 1322 to support each other, thereby increasing the service life of the elastic support plate 132 and the annular side panel 131. The curvature of the elastic support plate 132 from the top corner to the bottom edge increases as the length of the plate increases. The total curvature at the bottom edge of the elastic support plate 132 is set to be less than 1 / Π, which is a poor arc, and the total curvature of each part of the elastic support plate 132 can be ensured to be less than 1 / Π.

[0040] Combine Figures 6 to 9 As shown, in one embodiment, the elastic support plate 132 is connected between the first and second side plates 1312 in a wavy shape, and the total curvature of each curved segment is less than 1 / π. The elastic support plate 132 can be connected between the first and second side plates 1312 in an S-shape, or in a W-shape. When the elastic support plate 132 is S-shaped, its ends are connected to the first and second side plates 1312, respectively, and the elastic support plate 132 is separated from the annular side plate 131 at its upper and lower ends. The elastic support plate 132 is positioned in the middle of the annular side plate 131 in the vertical direction and connected thereto. When the elastic support plate 132 is W-shaped, its ends are connected to the first and second side plates 1312, respectively, and the upper and lower ends are separated from the annular side plate 131.

[0041] Combine Figures 1 to 5As shown, in one embodiment, the bottom edges of the first support plate 1321 and the second support plate 1322 intersect obliquely with the annular side plate 131. In the vertical direction, the bottom edge of the first support plate 1321 is connected to the first side plate at the top, and is connected to the second side plate 1312 at the bottom, obliquely passing through the annular side plate 131. The bottom edge of the second support plate 1322 is connected to the first side plate at the top, and is connected to the second side plate 1312 at the bottom, obliquely passing through the annular side plate 131. The first bottom edge is parallel to the second bottom edge. The first support plate and the second support plate 1322 are triangular in shape, and the stability of the triangle is utilized to ensure the stability of the elastic support plate 132.

[0042] Combine Figure 1 and Figure 2 As shown, in one embodiment, the first conical plug 111 is a square cone or a circular cone. The first conical plug 111 is connected to the elastic fixing portion 130 via a first connecting post 112. If the first conical plug 111 is a square cone, the first connecting post 112 is a rectangular parallelepiped, and the upper end surface of the first connection is connected and fixed to the lower end surface of the first conical plug 111. If the first conical plug 111 is a circular cone, the first connecting post 112 is a cylindrical body, and the upper end surface of the first connecting post 112 is correspondingly fixedly connected to the first conical plug 111, and the lower end surface of the first connection is fixedly connected to the upper end of the elastic fixing portion 130.

[0043] Combine Figures 2 to 5 As shown, in one embodiment, the distance between the bottom edges of the first support plate 1321 and the second support plate 1322 is greater than 1 mm. Figure 4 As shown by the L mark in the middle, the bottom edges of the first support plate 1321 and the second support plate 1322 are parallel to each other and spaced apart. The first support plate 1321 protrudes forward, while the second support plate 1322 protrudes backward. When the elastic fixing portion 130 is not inserted into the connecting hole, the curvature of the first support plate 1321 and the second support plate 1322 is relatively small. During the process of the connecting hole wall squeezing the annular side plate 131, the curvature of the first support plate 1321 and the second support plate 1322 increases, and the bottom edges of the first support plate 1321 and the second support plate 1322 bend in opposite directions and away from each other. Setting the spacing between the bottom edges of the first support plate 1321 and the second support plate 1322 to be greater than 1 mm prevents mutual interference between the first support plate 1321 and the second support plate 1322 during the squeezing movement, which could result in the plate surface being unable to bend or the bending angle being incorrect, changing the force direction and causing the elastic support plate 132 to break or deform.

[0044] Combine Figures 1 to 4As shown, in one embodiment, assuming the vertical direction, the stopper 120 includes a stop surface 121 at the upper end and a corresponding surface at the lower end parallel to the stop surface 121. The stop surface 121 is a horizontal surface. When installing the solderless terminal, the corresponding surface serves as a reference surface to determine the accuracy of the stop surface's fit with the PCB. The stop surface 121 corresponds to the annular side plate 131 and is perpendicular to the annular side plate 131 when inserted into the connection hole. The first plug-in portion 110 is inserted into the connection hole of the PCB along the vertical direction, with the PCB surface arranged along a horizontal plane. The stop surface 121 contacts and abuts the PCB surface to prevent the first plug-in portion 110 from further insertion into the connection hole. The stopper 120 is disposed below the elastic fixing portion 130 and is horizontally located in the middle of the stopper 120. The ends of the stopper 120 extend outward to extend beyond the elastic fixing portion 130.

[0045] Combine Figures 1 to 9 As shown, in one embodiment, the solderless terminal 100 further includes a second plug portion 140. The second plug portion 140 extends downward and is connected to the lower end of the limit stop portion 120 opposite the first connection plug. The first plug portion 110 is used to insert into a PCB board, and the second plug portion 140 is used to insert into another electrical component to achieve communication between the electrical component and the PCB board. The second plug portion 140 is opposite the first plug portion 110 and is connected to the lower end of the limit stop portion 120. The second plug portion 140 includes a second conical plug 141, which extends in the opposite direction of the first conical plug 111. The second conical plug 141 is a square cone or a circular cone.

[0046] Combine Figures 1 to 9 As shown, the second plug portion 140 further includes a second connecting post 142 for connecting the second conical plug 141 and the limit stop portion 120. The second connecting post 142 is longer than the first connecting post 112 to facilitate connection with another electrical component and prevent interference between the connected electrical component and components on the PCB board.

[0047] It is understandable that the length of the second connecting column 142 can be set to a telescopic rod structure as needed to meet different height requirements.

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. Moreover, the terms used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more of the associated listings. In addition, when used in this application, the term "comprise" and its variant "comprises" are intended to include any and all possible combinations of one or more of the associated listings. In addition, when used in this application, the term "comprises" and its variant "comprises" are intended to include any and all possible combinations of one or more of the associated listings.

[0050] (comprises) and / or comprising (comprising) refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be referred to the description of the method part.

[0051] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A solderless terminal, characterized in that: include: The first plug portion includes a first cone plug, wherein the small end of the first cone plug extends outwardly to be inserted into the connection hole of the PCB board to connect the PCB board; a limit stop portion, used to limit the depth of insertion of the first cone plug into the connecting hole; an elastic fixing portion connecting the first conical plug and the limit stop portion, the elastic fixing portion being configured to be inserted into the connecting hole together with the first conical plug and being capable of elastically expanding and contracting in an elastic force direction perpendicular to the wall of the connecting hole to be fixedly connected to the connecting hole by elastic force; The elastic fixing portion includes an annular side plate and an elastic support plate supported inside the annular side plate, the elastic support plate is connected to the inner wall of the annular side plate in one or more arc sections, and the total curvature of each arc section is less than 1 / π, so that the surface of the elastic support plate generates elastic force when squeezed by the annular side plate; the elastic support plate includes a first support plate and a second support plate, the arc protrusions of the first support plate and the second support plate are in opposite directions; and the surface of the elastic support plate is projected into a triangle.

2. The solder-free terminal according to claim 1, wherein: The annular side plate includes a first side plate and a second side plate, and is formed by connecting the upper and lower ends of the first side plate and the second side plate; The top angles of the first support plate and the second support plate correspond to the upper and lower angles of the annular side plate respectively, the side edges of the first support plate and the second support plate are connected to the inner wall of the annular side plate respectively, and the bottom edges of the first support plate and the second support plate are arranged parallel to each other.

3. The solder-free terminal according to claim 2, characterized in that: The surface of the elastic support plate is curved into an arc shape.

4. The solder-free terminal according to claim 2, wherein: The elastic support plate is connected between the first side plate and the second side plate in a wave shape; wherein, the elastic support plate is connected between the first side plate and the second side plate in an "S" shape, or the elastic support plate is connected between the first side plate and the second side plate in a "W" shape.

5. The solder-free terminal according to any one of claims 2 to 4, characterized in that: The bottom edges of the first support plate and the second support plate obliquely intersect with the annular side plate.

6. The solder-free terminal according to any one of claims 1 to 4, characterized in that: The first cone plug is a square cone or a circular cone.

7. The solder-free terminal according to any one of claims 2 to 4, characterized in that: The distance between the bottom edges of the first support plate and the second support plate is greater than 1 mm.

8. The solder-free terminal according to any one of claims 2 to 4, characterized in that: The position limiting stop portion includes a stop surface, and the stop surface corresponds to the annular side plate and is perpendicular to the annular side plate along the direction of insertion into the connecting hole.

9. The solder-free terminal according to any one of claims 2 to 4, characterized in that: Also includes: The second plug-in portion is opposite to the first plug-in portion and is connected to the limit stop portion. The second plug-in portion includes a second cone plug. The extension direction of the second cone plug is opposite to the extension direction of the first cone plug.

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