A connector terminal with improved durability and flexibility

Abstract

This utility model discloses a connector terminal with improved durability and elasticity, comprising: a terminal body, a first connecting portion extending from the front end of the terminal body, a second connecting portion formed by folding back the front end of the first connecting portion, a first folded portion between the first and second connecting portions, and an outwardly inclined abutment arm connected to the end of the second connecting portion. A first reinforcing rib is provided on the first folded portion. The terminal body has a cutout, on which a downwardly inclined snap-fit ​​arm is provided. At least one crimping portion is connected to the far end of the terminal body. This utility model can improve the durability and elasticity of the connector terminal, ensure the normal conductivity of the connector terminal, and improve its reliability.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector terminal that improves durability and elasticity. Background Technology

[0002] As a core component for signal transmission and power conduction in electronic devices, the quality of the contact surface of connector terminals directly affects the reliability and stability of electrical connections. Currently, the contact groove of connector terminals uses a bent structure that slopes directly upwards. This reverse-bent, directly inclined structure has low durability and is prone to breakage or deformation under repeated insertion and removal, affecting the normal conduction function of the connector terminals and impacting contact reliability. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a connector terminal with improved durability and elasticity, which can improve the durability and elasticity of the connection terminal, ensure the normal conduction function of the connection terminal, and improve its reliability.

[0004] To achieve the above objectives, this utility model provides a connector terminal with improved durability and flexibility, comprising:

[0005] The terminal body has a front end that extends to form a first connecting portion, the front end of which is folded back to form a second connecting portion that is parallel to the first connecting portion, a first folded portion between the first connecting portion and the second connecting portion, and an outwardly inclined abutment arm connected to the end of the second connecting portion. A first reinforcing rib is provided on the first folded portion.

[0006] The terminal body has a cutout, and a downwardly inclined snap-fit ​​arm is provided in the cutout.

[0007] At least one crimping portion is connected to the end of the terminal body that is furthest away from it.

[0008] Furthermore, a rounded transition portion is provided between the second connecting portion and the abutment arm, which causes the abutment arm to be inclined. This reduces the risk of fatigue fracture of the abutment arm under repeated insertion / removal or stress, extends the terminal life, and the inclined abutment arm, in conjunction with the rounded transition portion, guides the mating terminal or connector to be inserted smoothly, reducing insertion / removal resistance (especially in blind mating scenarios), reducing the probability of deformation or jamming, and the tilt angle may cause the abutment arm to generate elastic pre-compression, ensuring tight contact with the mating terminal, avoiding poor contact caused by vibration, and improving the reliability of the electrical connection.

[0009] Furthermore, the first reinforcing rib extends from the first connecting portion and sequentially covers the first folded portion and the arc transition portion. The reinforcing rib penetrates the first connecting portion, the folded portion, and the arc transition portion to form a continuous support frame, which significantly improves the overall rigidity of the terminal, increases the strength of the terminal, and can resist deformation caused by insertion / removal, vibration, or external loads, while avoiding poor contact of the contact arm due to elastic decay.

[0010] Furthermore, the first reinforcing rib is a rib that protrudes outward. The outward protruding rib forms a cross-sectional structure similar to an "I-beam", which greatly increases the moment of inertia of the local area of ​​the terminal, making it less prone to bending or twisting deformation when subjected to forces (such as insertion and extraction forces, vibration and impact).

[0011] Furthermore, the widths of the first connecting portion, the first bent portion, the second connecting portion, and the arc transition portion are all the same. The first reinforcing rib is located in the middle of the above components, and the width of the first reinforcing rib is L1. The width from the edge of the first reinforcing rib to the two edges of the above components is L2, and the size of L1 is twice that of L2. The equal width design allows stress to be evenly distributed along the entire structure, avoiding local stress concentration and improving fatigue resistance. The centrally located reinforcing rib (L1=2L2) forms a symmetrical support structure, significantly improving the overall bending and torsional stiffness and preventing terminal deformation or breakage.

[0012] Furthermore, the distance between the first connecting part and the second connecting part is less than the thickness of the terminal body. The smaller distance makes the structure between the two connecting parts more compact, enhances the overall rigidity, and can effectively resist deformation caused by external forces (such as insertion and extraction forces, vibration or impact). The compact design can reduce stress concentration, especially under repeated insertion and extraction or dynamic load conditions, thus extending the service life of the terminal.

[0013] Furthermore, the width of the abutment arm is smaller than the width of the terminal body, and it corresponds to the middle part of the terminal body. This makes the terminal body wider, and the wider terminal body makes the terminal positioning more stable.

[0014] Furthermore, the end of the abutment arm is designed with rounded corners. All corners are chamfered to make the terminal move more smoothly and facilitate use.

[0015] Furthermore, the connection between the first connecting part and the terminal body is provided with a first arc structure and a second arc structure connected in sequence. The bending directions of the first arc structure and the second arc structure are opposite to those of each other. A snap-fit ​​notch is provided between the second arc structure and the terminal body. The combination of the first arc structure, the second arc structure, and the snap-fit ​​notch forms a conical structure at the front end of the terminal body. This conical front end structure achieves "progressive insertion," which can reduce the initial insertion resistance by 30%-50% compared to a right-angle setting.

[0016] Furthermore, the clamping portion is connected to symmetrically arranged first clamping arms on both sides, and a second reinforcing rib is provided on the clamping portion. This improves the clamping of the cable, making it less likely to fall off, and the second reinforcing rib enhances the structural rigidity of the clamping portion.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This utility model features a first reverse bend between the first connecting part and the second connecting part, and an arc transition part that causes the contact arm to tilt upwards. In particular, a first reinforcing rib is provided on the outer surface of the first connecting part, the second connecting part, the first reverse bend part, and the arc transition part. The first reinforcing rib penetrates the first connecting part, the first reverse bend part, the second connecting part, and the arc transition part to form a continuous support frame, which significantly improves the overall rigidity of the terminal and increases the strength of the terminal. It can resist deformation caused by insertion and removal, vibration, or external loads, while avoiding poor contact caused by elastic decay of the contact arm, maintaining the clamping of the mating terminal, and forming a stable conductive effect.

[0019] Furthermore, the first connecting part, the second connecting part, and the first folded part form an inverted "R" shape structure, which can improve the durability of the abutment arm. In particular, the distance between the first connecting part and the second connecting part is less than the thickness of the terminal body. The smaller distance makes the structure between the two connecting parts more compact, and the overall rigidity is enhanced. It can effectively resist deformation caused by external forces (such as insertion and extraction forces, vibration, or impact). The compact design can reduce stress concentration, especially under repeated insertion and extraction or dynamic load conditions, thus extending the service life of the terminal.

[0020] This utility model features chamfered corners at every point, making the terminals move more smoothly and easier to use. Furthermore, the utility model employs a wide terminal body design, which makes the terminal positioning more stable. Attached Figure Description

[0021] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a connector terminal that improves durability and elasticity according to this utility model;

[0023] Figure 2 yes Figure 1 A side view diagram;

[0024] Figure 3 yes Figure 1 A frontal view diagram.

[0025] The diagram includes:

[0026] 1. Terminal body; 11. Hollowed-out position; 12. Snap-fit ​​arm; 121. Second bend; 13. Wire pressing part; 14. First wire pressing arm; 15. Second reinforcing rib; 16. First arc structure; 17. Second arc structure; 18. Snap-fit ​​notch; 2. First connecting part; 21. First reverse bend; 3. Second connecting part; 31. Arc transition part; 4. Abutting arm; 5. First reinforcing rib. Detailed Implementation

[0027] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0030] Please see Figures 1 to 3 The present invention provides a connector terminal with improved durability and elasticity, including a terminal body 1;

[0031] like Figure 1 As shown, the front end of the terminal body 1 extends to form a first connecting portion 2. The front end of the first connecting portion 2 is folded back to form a second connecting portion 3 parallel to the first connecting portion 2. The end of the second connecting portion 3 is connected to an outwardly inclined abutment arm 4. Between the first connecting portion 2 and the second connecting portion 3 is a first folded portion 21, thereby forming an inverted "R" shaped structure, which can improve the durability of the abutment arm 4. In particular, as Figure 2As shown, in this embodiment, the distance H between the first connecting part 2 and the second connecting part 3 is less than the thickness of the terminal body 1. In this embodiment, the terminal body 1, the first connecting part 2, the first folded part 21 of the third connecting part 3 and the abutment arm 4 are all integrally formed by stamping and have the same thickness. The smaller distance makes the structure between the two connecting parts more compact and the overall rigidity is enhanced. It can effectively resist the deformation caused by external forces (such as insertion and extraction forces, vibration or impact). The compact design can reduce stress concentration, especially under repeated insertion and extraction or dynamic load conditions, and extend the service life of the terminal.

[0032] Preferably, in this embodiment, the width of the abutment arm 4 is smaller than the width of the terminal body 1 and corresponds to the middle part of the terminal body 1, thereby making the width of the terminal body 1 larger. The wider terminal body 1 makes the terminal positioning more stable.

[0033] An arc transition portion 31 is also provided between the second connecting portion 3 and the abutting arm 4. The arc transition portion 31 makes the abutting arm 4 inclined, thereby enabling a small section of bending that forms from the second connecting portion 3 to the arc transition portion 31. This allows the abutting arm 4 to maintain a stable angle of inclination, and when the abutting arm 4 bends, the arc transition portion 31 can play a certain buffering role, reducing the risk of fatigue fracture of the abutting arm 4 under repeated insertion and removal or stress, and extending the terminal life. The inclined abutting arm 4, in conjunction with the arc transition portion 31, can guide the mating terminal or connector to be inserted smoothly, reducing insertion and removal resistance (especially in blind insertion scenarios), reducing the probability of deformation or jamming. The inclination angle may cause the abutting arm 4 to generate elastic pre-compression, ensuring close contact with the mating terminal, avoiding poor contact caused by vibration, and improving the reliability of electrical connection. Preferably, the abutting arm 4 is inclined at 20° to the terminal body 1. The 20° inclination produces the optimal amount of elastic deformation, which can provide sufficient elastic deformation for the mating terminal. In repeated insertion and removal, the small angle of inclination of 20° can reduce the risk of fatigue fracture.

[0034] The primary function of the first folding portion 21 is to provide sufficient elastic restoring force for the abutting arm 4. It is one of the important structures for the abutting arm 4 to clamp the mating terminals. To ensure the structural rigidity of the first folding portion 21, this invention provides a first reinforcing rib 5 on the first folding portion 21. The first reinforcing rib 5 is a rib that protrudes outward, which not only improves the elasticity but also reduces the risk of fatigue fracture under repeated insertion and removal or stress. In this invention, preferably, the first reinforcing rib 5 extends from the first connecting portion 2 and sequentially covers the first folding portion 21, the second connecting portion 3, and the arc transition portion 31. The first reinforcing rib 5 penetrates the first connecting portion 2, the first folding portion 21, the second connecting portion 3, and the arc transition portion 31 to form a continuous support frame, which significantly improves the overall rigidity of the terminal, increases the strength of the terminal, and can resist deformation caused by insertion and removal, vibration, or external loads. At the same time, it avoids poor contact of the abutting arm 4 due to elastic decay.

[0035] Furthermore, such as Figure 3 As shown, the first connecting part 2, the first bending part, the second connecting part 3, and the arc transition part 31 have the same width. The first reinforcing rib 5 is located in the middle of the above components, and the width of the first reinforcing rib 5 is L1. The width from the edge of the first reinforcing rib 5 to the two edges of the above components is L2, and the size of L1 is twice that of L2. The equal width design of the first connecting part 2, the first bending part, the second connecting part 3, and the arc transition part 31 ensures that stress is evenly transmitted along the entire structure, avoids local stress concentration, and improves fatigue resistance. The centrally located reinforcing rib (L1=2L2) forms a symmetrical support structure, which significantly improves the overall bending and torsional stiffness and prevents terminal deformation or breakage.

[0036] A cutout 11 is provided on the terminal body 1, and a downwardly inclined snap-fit ​​arm 12 is provided on the cutout 11. The snap-fit ​​arm 12 is directly stamped and integrally formed with the terminal body 1. A downwardly bent second bend 121 is formed between the snap-fit ​​arm 12 and the terminal body 1. The snap-fit ​​arm 12 is inclined downward so that it can abut against the connector housing during assembly to prevent the terminal body 1 from falling off. This snap-fit ​​structure makes the installation of the terminal body 1 more convenient.

[0037] At least one wire clamping part 13 is connected to the end of the terminal body 1 away from the terminal body 1. First wire clamping arms 14 are symmetrically arranged on both sides of the wire clamping part 13. A second reinforcing rib 15 is provided on the wire clamping part 13, which can improve the clamping of the cable more firmly and prevent it from falling off easily. The second reinforcing rib 15 can improve the structural rigidity of the wire clamping part 13.

[0038] like Figure 1As shown, in order to make the connector installation process more convenient, the end of the abutment arm 4 is set as a rounded corner structure, and all right angle positions are designed with chamfers to make the terminal smoother during movement and easier to use.

[0039] Furthermore, at the connection point between the first connecting part 2 and the terminal body 1, a first arc structure 16 and a second arc structure 17 are sequentially connected. The bending directions of the first arc structure 16 and the second arc structure 17 are opposite to each other. A snap-fit ​​notch 18 is provided between the second arc structure 17 and the terminal body 1. The combination of the first arc structure 16, the second arc structure 17, and the snap-fit ​​notch 18 forms a tapered structure at the front end of the terminal body 1. This tapered front end structure achieves "progressive insertion," which, compared to a right-angle setting, can reduce the initial insertion resistance by 30%-50%.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A connector terminal with improved durability and flexibility, characterized in that, include: Terminal body (1), the front end of the terminal body (1) extends to form a first connecting part (2), the front end of the first connecting part (2) is folded back to form a second connecting part (3) parallel to the first connecting part (2), a first folded part (21) is between the first connecting part (2) and the second connecting part (3), the end of the second connecting part (3) is connected to an outwardly inclined abutment arm (4), and a first reinforcing rib (5) is provided on the first folded part (21); The terminal body (1) is provided with a hollowed-out position (11), and a downwardly inclined snap-fit ​​arm (12) is provided on the hollowed-out position (11); At least one crimping portion (13) is connected to the end of the terminal body (1) away from the terminal body (1).

2. The connector terminal according to claim 1, wherein An arc transition portion (31) is also provided between the second connecting portion (3) and the abutting arm (4), the arc transition portion (31) causing the abutting arm (4) to be inclined.

3. The connector terminal according to claim 2, wherein The first reinforcing rib (5) extends from the first connecting part (2) and successively covers the first folded part (21) and the arc transition part (31).

4. The connector terminal according to claim 3, wherein The first reinforcing rib (5) is a rib that protrudes outward.

5. The connector terminal according to claim 4, wherein The widths of the first connecting part (2), the first bending part, the second connecting part (3) and the arc transition part (31) are the same. The first reinforcing rib (5) is located in the middle of the above-mentioned component, and the width of the first reinforcing rib (5) is L1. The width from the edge of the first reinforcing rib (5) to the two edges of the above-mentioned component is L2. The size of L1 is equal to twice that of L2.

6. The connector terminal of claim 1, wherein The distance between the first connecting part (2) and the second connecting part (3) is less than the thickness of the terminal body (1).

7. The connector terminal of claim 1, wherein The width of the abutment arm (4) is smaller than the width of the terminal body (1) and corresponds to the middle part of the terminal body (1).

8. The connector terminal of claim 1, wherein The end of the abutment arm (4) is configured with a rounded corner structure.

9. The connector terminal of claim 1, wherein The first connecting part (2) and the terminal body (1) are provided with a first arc structure (16) and a second arc structure (17) connected in sequence. The bending directions of the first arc structure (16) and the second arc structure (17) are opposite to each other. A snap-fit ​​notch (18) is provided between the second arc structure (17) and the terminal body (1). The combination of the first arc structure (16), the second arc structure (17) and the snap-fit ​​notch (18) makes the front end of the terminal body (1) form a conical structure.

10. The connector terminal of claim 1, wherein The pressure part (13) is connected to the two sides of the first pressure arm (14) which is symmetrically arranged, and the pressure part (13) is provided with a second reinforcing rib (15).

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