connection terminal

Abstract

The application provides a connecting terminal, which belongs to the technical field of electrical connectors and is used for electrically connecting a connector and a circuit board. The connecting terminal comprises a main body, one end of the main body can be electrically connected with the connector, a through hole is formed in the main body, the main body comprises a first wall and a second wall, the main body can be inserted into a hole on the circuit board, the first wall and the second wall can elastically abut against a hole wall, at least one of the first wall and the second wall can move towards the other wall in a second direction to form an interference fit with the hole wall, the through hole provides a movement space for the first wall and the second wall to form the interference fit with the hole wall, so that the connecting terminal can be firmly supported on the hole wall through the main body, the assembly stability and the electrical connection stability between the connecting terminal and the circuit board are ensured, the connection stability between the connector and the circuit board is ensured, and the service life and the use stability of the connector are ensured.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and more specifically to a connector terminal. Background Technology

[0002] Connectors and circuit boards are electrically connected through connecting terminals. The existing connection method between connecting terminals and circuit boards is generally to use soldering. Specifically, the connecting terminals are inserted into the sockets opened on the circuit board, and then the connecting terminals are soldered to the circuit board through a soldering process. However, the soldering process is costly, the high temperature generated during the soldering process requires high high temperature resistance of the connector, and the high temperature generated during the soldering process can also cause thermal stress problems on the components on the circuit board, affecting the service life. Utility Model Content

[0003] This application provides a connection terminal that can solve the problems of high cost and reduced lifespan of existing circuit boards caused by soldering connections between connection terminals and circuit boards.

[0004] This application provides a connection terminal for electrically connecting a connector and a circuit board. The circuit board has a socket and a wall surrounding the socket. The connection terminal includes a body, one end of which is electrically connected to the connector in a first direction. The body has a through hole in a third direction. The body includes a first wall and a second wall disposed opposite to each other in a second direction, the first direction, the second direction, and the third direction intersecting each other. The body can be inserted into the socket on the circuit board to electrically connect the connector and the circuit board. The first wall and the second wall can elastically abut against the wall of the hole. At least one of the first wall and the second wall can approach the other in the second direction to form an interference fit with the wall of the hole.

[0005] The beneficial effect of this application is that it provides a connection terminal for electrically connecting a connector and a circuit board. The connection terminal includes a body, one end of which is electrically connected to the connector in a first direction. A through hole is formed in the body in a third direction. The body includes a first wall and a second wall disposed opposite to each other in a second direction. The body can be inserted into a socket on the circuit board to electrically connect the connector and the circuit board. The first and second walls can elastically abut against the hole wall. At least one of the first and second walls can move closer to the other in the second direction to form an interference fit with the hole wall. The through hole in the body makes the body hollow and annular in structure, reducing the overall weight of the connection terminal while providing space for at least one of the first and second walls to move closer to the other in the second direction. This allows the body to be inserted into the socket on the circuit board. The first and second walls of the main body can elastically abut against the hole wall, allowing at least one of the first and second walls to approach the other along a second direction to form an interference fit with the hole wall surrounding the socket. This allows the connecting terminal to be firmly supported on the hole wall by the main body, thereby ensuring the assembly stability and electrical connection stability between the connecting terminal and the circuit board, and further ensuring the connection stability between the connector and the circuit board. Moreover, under the premise of simplifying manufacturing, the mechanical connection method between the connecting terminal and the circuit board eliminates the existing soldering process, reduces manufacturing and maintenance costs, and avoids the contamination problems of solder and flux during the soldering process, avoids short circuit problems caused by soldering. In addition, it can also avoid the problem of connector size changes caused by the melting of plastic parts in the connector due to the high temperature during the soldering process, ensuring the service life and stability of the connector. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of the first structure of the connection terminal provided in the embodiments of this application;

[0008] Figure 2 yes Figure 1 Side view;

[0009] Figure 3 yes Figure 1 The front view;

[0010] Figure 4 yes Figure 1 Top view;

[0011] Figure 5This is a schematic diagram of a second structure of the connection terminal provided in the embodiments of this application;

[0012] Figure 6 This is a schematic diagram of the third structure of the connection terminal provided in the embodiments of this application;

[0013] Figure 7 This is a schematic diagram of the fourth structure of the connection terminal provided in the embodiments of this application;

[0014] Figure 8 This is a schematic diagram of the combined structure of the connection terminal and the circuit board provided in the embodiments of this application;

[0015] Figure 9 yes Figure 8 Sectional view along axis AA;

[0016] Figure 10 This is a schematic diagram of the combined structure of the connection terminals, connectors, and circuit board provided in the embodiments of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] 100. Connecting terminals;

[0019] 10. Main body; 101. Through hole; 102. Third surface; 103. Fourth surface; 1011. Shaft; 1012. Axis; 11. First wall; 110. First wall surface; 12. Second wall; 120. Second wall surface; 13. First end; 14. Second end; 141. First surface; 142. Second surface;

[0020] 20. Base;

[0021] 200. Connector;

[0022] 300, Circuit board; 310, Socket; 311, Hole wall; 3111, First inner wall; 3112, Second inner wall;

[0023] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features.

[0025] In some embodiments of this application, a connection terminal 100 is provided, as shown in the reference... Figures 1-10 The connecting terminal 100 includes: a body 10. (See reference...) Figures 8-10 The connecting terminal 100 is used for electrical connection between the connector 200 and the circuit board 300, see reference. Figures 8-10 The circuit board 300 has a socket 310, as shown in the reference. Figure 9 The circuit board 300 has a hole wall 311 surrounding the socket 310.

[0026] Reference Figures 1 to 7 The main body 10 has a first direction X, a second direction Y, and a third direction Z that intersect each other in pairs, as detailed below. Figures 1-10 In the illustrated embodiment, the first direction X, the second direction Y, and the third direction Z are all pairwise orthogonal. (Refer to...) Figure 1 , Figure 3 as well as Figures 5-9 The main body 10 has a through hole 101 extending through the main body 10 in the third direction Z, as shown in the figure. Figure 1 , Figures 3-7 as well as Figure 9 The main body 10 includes a first wall 11 and a second wall 12 disposed opposite to each other along the second direction Y, as shown in the figure. Figures 8-9 The main body 10 can be inserted into the socket 310 to electrically connect the connector 200 and the circuit board 300, see reference. Figure 9The first wall 11 and the second wall 12 can elastically abut against the hole wall 311, and at least one of the first wall 11 and the second wall 12 can move closer to the other along the second direction Y to form an interference fit with the hole wall 311. The first direction X is parallel to the length direction of the body 10, the second direction Y is parallel to the width direction of the body 10, and the third direction Z is parallel to the thickness direction of the body 10. The insertion hole 310 penetrates the circuit board 300 along the first direction X (i.e., the thickness direction of the circuit board 300).

[0027] Connectors and circuit boards are electrically connected via connector terminals. Currently, the connection between connector terminals and circuit boards is typically achieved through soldering. Specifically, connector terminals are inserted into sockets on the circuit board, and then soldered together. However, soldering requires a soldering furnace, leading to high production line investment and consequently high production costs. The high temperatures generated during soldering place high demands on the heat resistance of the plastic components in the connector. High temperatures can easily cause the plastic material to melt, resulting in changes in the dimensions of the plastic components, affecting the connection stability between the connector and the circuit board, as well as the stability of current and signal transmission. Furthermore, the high temperatures generated during soldering can cause thermal stress on the components on the circuit board. The solder and flux used in the soldering process pose a risk of contaminating the circuit board, and solder bridges formed during the soldering process pose a risk of short circuits on the circuit board, affecting the connection stability between the connector, connector terminals, and circuit board, and impacting the stability of signal and current transmission.

[0028] The connection terminal 100 provided in this application embodiment includes a main body 10. The main body 10 has a through hole 101 extending through the main body 10 in a third direction Z. The main body 10 includes a first wall 11 and a second wall 12 disposed opposite each other in a second direction Y. The main body 10 can be inserted into a socket 310 on a circuit board 300 to electrically connect the connector 200 and the circuit board 300. When the main body 10 is inserted into the socket 310, the first wall 11 and the second wall 12 can elastically abut against the hole wall 311 surrounding the socket 310. At least one of the first wall 11 and the second wall 12 can approach the other in the second direction Y to form an interference fit with the hole wall 311. For example, the first wall 11 approaches the second wall 12 in the second direction Y to form an interference fit with the hole wall 311, and / or the second wall 12 approaches the first wall 11 in the second direction Y to form an interference fit with the hole wall 311. The opening of the through hole 101 on the main body 10 allows the main body 10 to... The body 10 has a hollow, ring-shaped structure. While reducing the overall weight of the connecting terminal 100, the through hole 101 provides space for at least one of the first wall 11 and the second wall 12 to move towards the other along the second direction Y. This allows the first wall 11 and the second wall 12 to elastically abut against the hole wall 311 when the body 10 is inserted into the socket 310. Moreover, at least one of the first wall 11 and the second wall 12 can move towards the other along the second direction Y under the squeezing action of the hole wall 311. That is, at least one of the first wall 11 and the second wall 12 can shrink and deform inward. This allows the connecting terminal 100 to be firmly supported on the hole wall 311 by the body 10, thereby ensuring the assembly stability and electrical connection stability between the connecting terminal 100 and the circuit board 300, and further ensuring the connection stability between the connector 200 and the circuit board 300 through the connecting terminal 100, and ensuring the stability of current and signal transmission.

[0029] In addition, the structural design of the first wall 11 and the second wall 12 being able to elastically abut against the hole wall 311 provides reliable vibration resistance and impact resistance for the connection terminal 100, meeting the standards IEC60352-5 and IPC9797.

[0030] Furthermore, the connecting terminal 100 provided in this embodiment can be directly formed by stamping, resulting in high production stability. While maintaining ease of manufacturing, the mechanical connection between the connecting terminal 100 and the circuit board 300 offers the following advantages compared to existing welding connections:

[0031] The existing welding process has been eliminated, reducing manufacturing and maintenance costs;

[0032] To avoid contamination of the circuit board by solder and flux during the soldering process;

[0033] To avoid short circuits caused by weld bridges formed during the welding process;

[0034] Reduce the thermal stress requirements of the circuit board, avoid the high temperature generated during the soldering process from impacting the components on the circuit board, and ensure the service life of the circuit board;

[0035] Eliminating the need for high-temperature resistant connector plastic parts reduces manufacturing costs;

[0036] To avoid connector dimensional changes caused by melting of plastic components due to high temperatures, and to ensure connector lifespan and stability of current and signal transmission;

[0037] The dimensions of the connecting terminal 100 provided in this application embodiment along the first direction X are not limited, which can meet the size requirements of the product for the reflow soldering method;

[0038] Compared to reflow soldering, which is unsuitable for integrated male connectors and housings due to poor heat conduction, the connection terminal 100 provided in this application embodiment is suitable for integrated male connectors and housings, ensuring smooth heat conduction.

[0039] In some embodiments, circuit board 300 is a printed circuit board (PCB). Connector 200 is a male connector.

[0040] In some embodiments, the first wall 11 and the second wall 12 can approach each other along the second direction Y to form an interference fit with the hole wall 311, respectively. This causes both the first wall 11 and the second wall 12 to be compressed by the hole wall 311 surrounding the insertion hole 310, thereby forming an interference fit between the first wall 11 and the second wall 12 and the hole wall 311. This allows the connecting terminal 100 to be firmly supported on the hole wall 311 by the body 10, thereby ensuring the assembly stability and electrical connection stability between the connecting terminal 100 and the circuit board 300.

[0041] In some embodiments, refer to Figures 1-9 The main body 10 includes a first end 13 and a second end 14 disposed opposite each other along a first direction X. The first end 13 is used for electrical connection with the connector 200, that is, the main body 10 is electrically connected to the connector 200 through the first end 13. (Refer to...) Figures 1-4 as well as Figure 9 Along the second direction Y, the first wall 11 has a first wall surface 110 facing away from the second wall 12, and the second wall 12 has a second wall surface 120 facing away from the first wall 11.

[0042] In some embodiments, refer to Figure 3 Along the second direction Y, the first end 13 has a first dimension L1 mm, and the second end 14 has a second dimension L2 mm, as shown in the reference. Figure 3 and Figure 9A third dimension L3 mm exists between the first wall surface 110 and the second wall surface 120, satisfying L1 < L3. Specifically, the first dimension L1 is the width of the first end 13 along the second direction Y, the second dimension L2 is the width of the second end 14 along the second direction Y, and the third dimension L3 is the distance between the first wall surface 110 and the second wall surface 120 along the second direction Y. The design of the dimension L1 < L3 is referenced. Figure 9 When the main body 10 is inserted into the socket 310 of the circuit board 300, the first wall 11 and the second wall 12 can elastically abut against the hole wall 311, while the first end 13, which is relatively small in size in the second direction Y, is located outside the socket 310. Thus, during the process of inserting the connecting terminal 100 into the socket 310, the first end 13 is allowed to have a certain degree of skewed deformation, which facilitates the assembly between the connecting terminal 100 and the circuit board 300.

[0043] In some embodiments, the second dimension L2 of the second end 14 along the second direction Y and the third dimension L3 between the first wall surface 110 and the second wall surface 120 along the second direction Y satisfy: L2 < L3. The dimension design of L2 < L3 refers to... Figure 9 When the main body 10 is inserted into the socket 310 of the circuit board 300, the relatively small second end 14 in the second direction Y facilitates the insertion of the main body 10, improving the convenience of inserting the main body 10 into the socket 310. This ensures that the first wall 11 and the second wall 12 can smoothly form an elastic abutment with the hole wall 311, thereby ensuring that at least one of the first wall 11 and the second wall 12 can form a stable interference fit with the hole wall 311, and ensuring the assembly stability and electrical connection stability between the connection terminal 100 and the circuit board 300.

[0044] In some embodiments, the following conditions are met: L1 < L3, and L2 < L3. This results in the main body 10 having an elliptical structure with relatively smaller widths at both ends and a relatively larger width in the middle along the first direction X. This facilitates the insertion of the main body 10 into the socket 310, ensures an interference fit between the first wall 11 and the second wall 12 and the hole wall 311, and allows the position of the main body 10 in the socket 310 to be adjusted by tilting the first end 13 located outside the socket 310. This ensures smooth assembly between the main body 10 and the circuit board 300, thereby ensuring smooth assembly between the connector 200 and the circuit board 300 through the connection terminal 100.

[0045] In some embodiments, refer to Figure 9The hole wall 311 includes a first inner wall 3111 and a second inner wall 3112 disposed opposite to each other. The first wall 11 elastically abuts against the first inner wall 3111, and the second wall 12 elastically abuts against the second inner wall 3112. Along the second direction Y, there is a fourth dimension L4 mm between the first inner wall 3111 and the second inner wall 3112. Specifically, the fourth dimension L4 is the distance between the first inner wall 3111 and the second inner wall 3112 along the second direction Y. When the insertion hole 310 is a circular hole, the fourth dimension L4 is the inner diameter of the insertion hole 310, satisfying: L4 < L3. The size design of L4 < L3 means that the diameter of the socket 310 is smaller than the third dimension L3 of the first wall surface 110 and the second wall surface 120 along the second direction Y on the main body 10. As a result, when the main body 10 is inserted into the socket 310, the first wall 11 and the second wall 12 can form an interference fit with the hole wall 311, so that the first wall 11 and the second wall 12 are close to each other along the second direction Y. This allows the connecting terminal 100 to be firmly supported on the hole wall 311 by the main body 10, thereby ensuring the assembly stability and electrical connection stability between the connecting terminal 100 and the circuit board 300.

[0046] In some embodiments, refer to Figure 3 The through hole 101 has a shaft 1011, and the shaft 1011 has an axis 1012 extending along the second direction Y. (Refer to...) Figure 1 , Figures 3-7 as well as Figure 9 Along the first direction X, the same ends of the first wall 11 and the second wall 12 on the same side are respectively connected to the first end 13, and the same ends of the first wall 11 and the second wall 12 on the other side are respectively connected to the second end 14. (Refer to...) Figure 3 and Figure 9 Along the first direction X, the value of the third dimension L3 between the first wall 110 and the second wall 120 decreases from the axis 1012 toward the direction closer to the first end 13.

[0047] In some embodiments, along the first direction X, the value of the third dimension L3 between the first wall 110 and the second wall 120 decreases from the axis 1012 toward the direction closer to the second end 14.

[0048] The structural design, in which the value of L3 decreases from axis 1012 towards the first end 13 and from axis 1012 towards the second end 14, results in the main body 10 having a structure that is wider in the middle and narrower at both ends. This facilitates the insertion of the main body 10 into the socket 310, ensures an interference fit between the first wall 11 and the second wall 12 and the hole wall 311, and allows the position of the main body 10 in the socket 310 to be adjusted by tilting the first end 13 located outside the socket 310. This ensures smooth assembly between the main body 10 and the circuit board 300, thereby ensuring smooth assembly between the connector 200 and the circuit board 300 through the connection terminal 100.

[0049] In some embodiments, L3 has a maximum value L along the second direction Y. max mm, satisfying: 0.79L max ≤L4≤0.95L max Specifically, the value of L4 can be 0.79L. max 0.81L max 0.83L max 0.85L max 0.87L max 0.89L max 0.91L max 0.93L max 0.95L max Any value in the range of values, or any two values ​​in the range. Specifically, L max L is the maximum value of the second direction Y between the first wall 110 and the second wall 120. max The theoretical maximum value, i.e., L max There is a tolerance of ±0.05mm. Specifically, as follows... Figure 3 In the embodiment shown, L max The method for obtaining the data is as follows: obtain the orthographic projection of the main body 10 along the third direction Z; obtain the intersection point of the orthographic projection of axis 1012 and the first wall 110 along the third direction Z; obtain the intersection point of the orthographic projection of axis 1012 and the second wall 120 along the third direction Z; the distance between these two intersection points is the maximum value L of the third dimension L3 of the first wall 110 and the second wall 120 along the second direction Y. max When the value of L4 is within the above range, when the main body 10 is inserted into the socket 310, the first wall 11 and the second wall 12 can both elastically abut against the socket wall 311, and the first wall 11 and the second wall 12 can both form an interference fit with the socket wall 311, so that the connecting terminal 100 can be firmly supported on the socket wall 311 by the main body 10, thereby ensuring the assembly stability and electrical connection stability between the connecting terminal 100 and the circuit board 300.

[0050] In some embodiments, the fourth dimension L4 is 0.55mm to 0.65mm, and the maximum value of L3 is L... max It is 0.7mm ± 0.05mm, 0.79L max ≤L4≤0.93L max .

[0051] In some embodiments, the fourth dimension L4 is 1mm to 1.1mm, and the maximum value of L3 is L... max It is 1.2mm ± 0.05mm, 0.83L max ≤L4≤0.92L max .

[0052] In some embodiments, the fourth dimension L4 is 1.45mm to 1.55mm, and the maximum value of L3 is L... max It is 1.66mm ± 0.05mm, 0.87L max ≤L4≤0.93L max .

[0053] In some embodiments, the fourth dimension L4 is 1.99mm to 2.09mm, and the maximum value of L3 is L... max It is 2.2mm ± 0.05mm, 0.90L max ≤L4≤0.95L max .

[0054] In some embodiments, refer to Figure 1 , Figures 3-4 as well as Figure 9 Along the second direction Y, the first wall surface 110 protrudes away from the second wall surface 120 to form an arc surface, and the second wall surface 120 protrudes away from the first wall surface 110 to form an arc surface. That is, the shape of the first wall surface 110 is a convex arc surface, and the shape of the second wall surface 120 is a convex arc surface. The arc surface structure design of the first wall surface 110 and the second wall surface 120 allows the connecting terminal 100 to be smoothly inserted into the socket 310, reducing the friction between the first wall surface 110 and the second wall surface 120 and the hole wall 311 during the insertion process, avoiding scratching the hole wall 311, and ensuring the service life of the circuit board 300.

[0055] In some embodiments, refer to Figures 1-2 as well as Figure 4 The second end 14 includes a first surface 141 and a second surface 142 arranged opposite to each other along the third direction Z. The first surface 141 and the second surface 142 are inclined surfaces. There is a gap between the first surface 141 and the second surface 142 along the third direction Z. The gap decreases from the end closer to the first end 13 to the end farther away from the first end 13 along the first direction X. Thus, a guiding angled structure is formed at the second end 14 of the main body 10. When the connecting terminal 100 is inserted into the socket 310, it can guide the connecting terminal 100, ensuring the accuracy and smoothness of insertion and improving assembly efficiency.

[0056] In some embodiments, refer to Figures 1-9 The two opposite sides of the second end 14 along the second direction Y can also be inclined surfaces to form a guide angled structure. The specific choice can be made according to the actual usage requirements.

[0057] In some embodiments, refer to Figures 1-9The connecting terminal 100 also includes a base 20, which is disposed at the first end 13 of the main body 10. The base 20 and the first end 13 are connected along a first direction X. The main body 10 can be electrically connected to the connector 200 through the base 20. Specifically, the connecting terminal 100 can be electrically connected to the connector 200 through the base 20. The design of the base 20 can ensure the overall stability of the connecting terminal 100, thereby ensuring the connection stability between the connecting terminal 100 and the circuit board 300, and between the connecting terminal 100 and the connector 200.

[0058] The base 20 is elastically connected to the first end 13, and the base 20 can be bent relative to the first end 13. This bendable design of the base 20 relative to the first end 13 allows for a certain degree of skewed deformation of the base 20 relative to the main body 10 during the insertion of the connecting terminal 100 into the socket 310 of the circuit board 300. This ensures that the main body 10 is smoothly inserted into the socket 310 and forms an interference fit with the hole wall 311, while facilitating the assembly of the connector 200 with the circuit board 300 via the connecting terminal 100, thus improving assembly efficiency.

[0059] In some embodiments, refer to Figure 3 Along the second direction Y, the first end 13 has a first dimension L1 mm, and the base 20 has a fifth dimension L5 mm, satisfying: L1 < L5. The structural design that the first dimension L1 of the first end 13 is smaller than the fifth dimension L5 of the base 20 allows the connecting terminal 100 to form a neck structure at the connection between the body 10 and the base 20. This allows the base 20 to bend or tilt relative to the body 10 more during the insertion of the connecting terminal 100 into the socket 310 of the circuit board 300, improving the flexibility of the base 20 in bending relative to the body 10. This facilitates the assembly of the connector 200 with the circuit board 300 via the connecting terminal 100, thereby improving assembly efficiency.

[0060] In some embodiments, refer to Figure 2 The main body 10 has a sixth dimension L6 mm along the third direction X, satisfying: 0.4 mm ≤ L6 ≤ 1.2 mm. Specifically, the value of the sixth dimension L6 can be any value among 0.4 mm, 0.6 mm to 0.64 mm, 0.8 mm, and 1.2 mm.

[0061] In some embodiments, 0.6mm ≤ L6 ≤ 0.64mm. Specifically, the value of the sixth dimension L6 can be any value among 0.6mm, 0.61mm, 0.62mm, 0.63mm, and 0.64mm, or any value within a range of any two values.

[0062] When the sixth dimension L6 of the main body 10 along the third direction X is within the above range, the main body 10 has a structural design with different thicknesses, thereby making the connecting terminal 100 suitable for a variety of applications and improving the adaptability of the connecting terminal 100.

[0063] In some embodiments, refer to Figures 1-4 , Figures 1-4 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 1.2 mm.

[0064] In some embodiments, refer to Figure 6 as well as Figures 8-9 , Figure 6 as well as Figures 8-9 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 0.6 mm.

[0065] In some embodiments, refer to Figure 5 , Figure 5 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 0.8 mm.

[0066] In some embodiments, refer to Figure 7 , Figure 7 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 0.4 mm.

[0067] In some embodiments, Figure 7 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 0.4 mm, the fourth dimension L4 of the hole wall 311 in the circuit board 300 corresponding to the connection terminal 100 is 0.55 mm to 0.65 mm, and the maximum value L of the third dimension L3 of the main body 10 along the second direction Y is... max It is 0.7mm ± 0.05mm.

[0068] In some embodiments, Figure 6 as well as Figures 8-9 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 0.6 mm, the fourth dimension L4 of the hole wall 311 in the circuit board 300 corresponding to the connection terminal 100 is 1 mm to 1.1 mm, and the maximum value L of the third dimension L3 of the main body 10 along the second direction Y is... max It is 1.2mm ± 0.05mm.

[0069] In some embodiments, Figure 5 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 0.8 mm, the fourth dimension L4 of the hole wall 311 in the circuit board 300 corresponding to the connection terminal 100 is 1.45 mm to 1.55 mm, and the maximum value L of the third dimension L3 of the main body 10 along the second direction Y is...max It is 1.66mm ± 0.05mm.

[0070] In some embodiments, Figures 1-4 In the embodiment shown, the sixth dimension L6 of the main body 10 in the connection terminal 100 is 1.2 mm, the fourth dimension L4 of the hole wall 311 in the circuit board 300 corresponding to the connection terminal 100 is 1.99 mm to 2.09 mm, and the maximum value L of the third dimension L3 of the main body 10 along the second direction Y is... max It is 2.2mm ± 0.05mm.

[0071] In some embodiments, the connecting terminal 100 is made of copper, and the copper is selected from C42500 (CuZn9Sn3) and C19010 (CuNiSi).

[0072] In some embodiments, the surface of the connecting terminal 100 is provided with an electroplated layer, the electroplated layer being selected from one of a nickel and tin composition, a nickel and indium composition, and a nickel and tin-lead composition.

[0073] The foregoing has provided a detailed description of a connection terminal provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A connecting terminal (100) for electrically connecting a connector (200) and a circuit board (300), the circuit board (300) having a socket (310) and a wall (311) surrounding the socket (310), characterized in that, The connection terminal (100) includes: The main body (10) is electrically connected to the connector (200) at one end along the first direction (X). The main body (10) has a through hole (101) that passes through the main body (10) along the third direction (Z). The main body (10) includes a first wall (11) and a second wall (12) that are arranged opposite to each other along the second direction (Y). The first direction (X), the second direction (Y) and the third direction (Z) intersect each other. The main body (10) can be inserted into the socket (310) to electrically connect the connector (200) and the circuit board (300), and the first wall (11) and the second wall (12) can elastically abut against the hole wall (311); At least one of the first wall (11) and the second wall (12) can approach the other along the second direction (Y) to form an interference fit with the hole wall (311).

2. The connection terminal (100) according to claim 1, characterized in that The first wall (11) and the second wall (12) can approach each other along the second direction (Y) to form an interference fit with the hole wall (311) respectively.

3. The connecting terminal (100) as described in claim 1, characterized in that, The main body (10) includes a first end (13) and a second end (14) disposed opposite each other along the first direction (X), the first end (13) being used for electrical connection with the connector (200); Along the second direction (Y), the first wall (11) has a first wall surface (110) facing away from the second wall (12), and the second wall (12) has a second wall surface (120) facing away from the first wall (11). Along the second direction (Y), the first end (13) has a first dimension L1mm, the second end (14) has a second dimension L2mm, and there is a third dimension L3mm between the first wall surface (110) and the second wall surface (120), satisfying at least one of the following conditions: a) L1 < L3; b) L2 < L3.

4. The connection terminal (100) according to claim 1, characterized in that Along the second direction (Y), the first wall (11) has a first wall surface (110) facing away from the second wall (12), the second wall (12) has a second wall surface (120) facing away from the first wall (11), and there is a third dimension L3mm between the first wall surface (110) and the second wall surface (120); Along the second direction (Y), the hole wall (311) includes a first inner wall (3111) and a second inner wall (3112) disposed opposite to each other. The first wall (11) elastically abuts against the first inner wall (3111), and the second wall (12) elastically abuts against the second inner wall (3112). There is a fourth dimension L4mm between the first inner wall (3111) and the second inner wall (3112), satisfying: L4 < L3.

5. The connection terminal (100) according to claim 1, characterized in that The through hole (101) has a shaft (1011) and the shaft (1011) has an axis (1012) extending along the second direction (Y). The main body (10) includes a first end (13) and a second end (14) disposed opposite each other along the first direction (X), the first end (13) being used for electrical connection with the connector (200); Along the first direction (X), the same ends of the first wall (11) and the second wall (12) on the same side are respectively connected to the first end (13), and the same ends of the first wall (11) and the second wall (12) on the other side are respectively connected to the second end (14). Along the second direction (Y), the first wall (11) has a first wall surface (110) facing away from the second wall (12), the second wall (12) has a second wall surface (120) facing away from the first wall (11), and there is a third dimension L3mm between the first wall surface (110) and the second wall surface (120); Along the first direction (X), the value of L3 decreases from the axis (1012) toward the first end (13), and / or, the value of L3 decreases from the axis (1012) toward the second end (14).

6. The connection terminal (100) according to claim 5, characterized in that L3 has a maximum value L along said second direction (Y) max mm; Along the second direction (Y), the hole wall (311) includes a first inner wall (3111) and a second inner wall (3112) disposed opposite to each other. The first wall (11) elastically abuts against the first inner wall (3111), and the second wall (12) elastically abuts against the second inner wall (3112). There is a fourth dimension L4mm between the first inner wall (3111) and the second inner wall (3112), satisfying: 0.79L max ≤L4≤0.95L max .

7. The connection terminal (100) according to claim 5, characterized in that Along the second direction (Y), the first wall surface (110) protrudes in a direction away from the second wall surface (120) to form an arc surface, and / or, the second wall surface (120) protrudes in a direction away from the first wall surface (110) to form an arc surface; The second end (14) includes a first surface (141) and a second surface (142) disposed opposite to each other along the third direction (Z). The first surface (141) and the second surface (142) are inclined surfaces respectively. Along the third direction (Z), there is a gap between the first surface (141) and the second surface (142). Along the first direction (X), the gap decreases from the end closer to the first end (13) to the end farther away from the first end (13).

8. The connection terminal (100) according to claim 1, characterized in that The connection terminal (100) also includes a base (20); The main body (10) includes a first end (13) and a second end (14) disposed opposite each other along the first direction (X), the base (20) is disposed at the first end (13), the base (20) is connected to the first end (13) along the first direction (X), and the main body (10) can be electrically connected to the connector (200) through the base (20); The base (20) is elastically connected to the first end (13), and the base (20) can be bent relative to the first end (13).

9. The connection terminal (100) according to claim 8, characterized in that Along the second direction (Y), the first end (13) has a first dimension L1mm, and the base (20) has a fifth dimension L5mm, satisfying: L1 < L5.

10. The connection terminal (100) according to claim 1, characterized in that The main body (10) has a sixth dimension L6mm along the third direction (Z) that satisfies: 0.4mm≤L6≤1.2mm.

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