A fisheye terminal structure

Abstract

This utility model relates to the field of connector technology, and in particular discloses a fisheye terminal structure, including a fisheye-shaped solder foot portion, with multiple fisheye-shaped through holes arranged along the length of the solder foot portion, and a transition connection portion between adjacent fisheye through holes; the fisheye through holes, through a multi-hole distribution design, enhance the elastic deformation capability of the fisheye terminal structure to adapt to different insertion and extraction force requirements. In this fisheye terminal structure, the fisheye-shaped solder foot portion increases the welding contact area and improves the welding firmness; the multi-hole distribution of the fisheye through holes enhances the elastic deformation capability and can adapt to different insertion and extraction force requirements; the transition connection portion between adjacent through holes maintains structural integrity and strength, extends the terminal service life, and ensures stable and reliable connection.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular discloses a fisheye terminal structure. Background Technology

[0002] In the field of electrical connections, terminals are key components for ensuring reliable connections of electrical elements, and their performance directly affects the stability and reliability of the entire circuit system. Traditional terminals face numerous challenges in practical applications: during welding, due to the limited contact area, weld points are prone to loosening or damage due to stress concentration, leading to unstable electrical connections and affecting normal equipment operation; in terms of mechanical performance, when subjected to external forces such as insertion / extraction forces and vibrations, unreasonable structural design can easily cause uneven stress distribution, resulting in premature local damage, deformation, and torsion, making it difficult to meet the requirements for connection strength and stability under complex working conditions; during assembly, the single connection form and difficult positioning not only increase assembly difficulty and time costs but also easily lead to installation deviations, affecting product compatibility and overall quality. Therefore, there is an urgent need to develop a new terminal structure to solve the above problems and meet the higher requirements for electrical connections in terms of welding performance, structural strength, and assembly convenience. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a fisheye terminal structure.

[0004] To achieve the above objectives, the present invention provides a fisheye terminal structure, comprising a fisheye-shaped solder foot portion, wherein a plurality of fisheye-shaped through holes are arranged along the length direction of the solder foot portion, and a transition connection portion is provided between two adjacent fisheye through holes; the fisheye through holes are designed with a multi-hole distribution to enhance the elastic deformation capability of the fisheye terminal structure in order to adapt to different insertion and extraction force requirements.

[0005] Furthermore, the cross-section of the transition connection portion along the width direction of the weld foot portion is X-shaped, and the center point of the X-shape of the transition connection portion extends to the upper and lower surfaces of the weld foot portion along the thickness direction of the weld foot portion.

[0006] Furthermore, the fisheye terminal structure also includes a long strip-shaped terminal base, one end of which is connected to the solder foot, and the other end is bent into an L-shaped bend.

[0007] Furthermore, the terminal base has a plate portion near the solder foot portion, the plate portion protruding from the terminal base along the width direction of the terminal base, and an arc-shaped transition portion is provided between the plate portion and the solder foot portion.

[0008] Furthermore, the connection between the fisheye through hole and the transition connection is arc-shaped.

[0009] Furthermore, a chamfer is provided between the transition connection portion and the weld foot portion.

[0010] Furthermore, one end of the solder foot is provided with a second insertion part, the second insertion part having an arc-shaped part and a beveled part that are transitionally connected to the solder foot, the beveled part and the arc-shaped part being used to guide the solder foot to be inserted into the soldering hole of the external circuit board.

[0011] Furthermore, the number of inclined surfaces is set to multiple, and multiple inclined surfaces are connected to both sides of the arc surface. The arc surface is composed of multiple transitionally connected arc surfaces, and the inclined surfaces are connected to the corresponding arc surfaces.

[0012] Furthermore, the end of the bent portion is provided with a first insertion portion for connecting and communicating with an external docking component. The first insertion portion has a truncated pyramid structure with a reduced cross-sectional size from the bent portion to the end.

[0013] Furthermore, the solder foot portion has a flat portion, and the flat portion is at the same horizontal plane as the corresponding surface of the terminal base.

[0014] The beneficial effects of this utility model are:

[0015] (1) Enhanced welding performance: The fish-eye design of the weld foot and multiple fish-eye through holes increase the contact area and improve the welding firmness. The symmetrical distribution of the transition connection makes the heat and stress conduction more uniform and ensures the stability of the electrical connection.

[0016] (2) Optimize structural strength: The thickness of the transition connection is less than that of the weld foot, which can buffer external force. Its X-shaped symmetrical structure and the overall symmetrical design of the fisheye terminal can evenly distribute external force and avoid stress concentration. In addition, the fisheye through hole, the arc design of the transition connection and the chamfered part further improve mechanical performance and reliability.

[0017] (3) Improved assembly convenience: The L-shaped bend and other components facilitate the insertion of terminals into other components, the second insertion part guides precise insertion, and the flat part facilitates positioning and fixation. The symmetrical structure ensures that the force is evenly distributed when the terminal is inserted into the board hole, reducing the risk of installation deviation and improving insertion and removal stability and assembly convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a fisheye terminal structure according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the welding foot portion of this utility model;

[0020] Figure 3 This is a cross-sectional view of the transition connection portion of this utility model.

[0021] The reference numerals in the attached drawings include: 1. weld foot; 2. fisheye through hole; 3. transition connection; 4. terminal base; 5. bend; 6. plate; 7. arc transition; 8. chamfer; 9. second insertion part; 11. arc surface; 12. beveled surface; 13. first insertion part; 14. flat surface. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] Please see Figures 1 to 3 As shown, a fisheye terminal structure of this utility model includes a fisheye-shaped solder foot 1, and a plurality of fisheye-shaped through holes 2 are arranged along the length direction of the solder foot 1. A transition connection part 3 is provided between two adjacent fisheye through holes 2. The fisheye through holes 2 are designed with a multi-hole distribution to enhance the elastic deformation capability of the fisheye terminal structure so as to adapt to different insertion and extraction force requirements.

[0024] In practical use, firstly, the solder foot 1 is fisheye-shaped. This unique shape provides a larger contact area during soldering, resulting in a stronger and more stable solder joint, reducing the risk of poor soldering, and enhancing the reliability of the connection between the terminal and the circuit board. Secondly, the fisheye through-holes 2 are fisheye-shaped and multi-hole distributed along the length of the solder foot 1. This design greatly enhances the elastic deformation capability of the fisheye terminal structure. When faced with different insertion and extraction force requirements, multiple fisheye through-holes 2 can elastically deform together during the stress process, flexibly adjusting their own stress state and deformation degree to adapt to different insertion and extraction forces. This ensures that the terminal maintains good connection performance under various insertion and extraction conditions, preventing problems such as loosening and poor contact caused by mismatched insertion and extraction forces. Thirdly, the transition connection 3 between adjacent fisheye through-holes 2, while ensuring good elasticity of the fisheye terminal structure, also maintains the integrity and strength of the overall structure, avoiding structural damage caused by excessive elastic deformation, effectively extending the service life and operational stability of the fisheye terminal.

[0025] Specifically, the cross-section of the transition connection portion 3 along the width direction of the weld foot portion 1 is X-shaped, and the center point of the X-shape of the transition connection portion 3 extends to the upper and lower surfaces of the weld foot portion 1 along the thickness direction of the weld foot portion 1.

[0026] In practical use, the transition connection 3 adopts an X-shaped cross-section along the width direction of the weld leg 1, with the center point of the X extending to the upper and lower surfaces along the thickness direction of the weld leg 1. Simultaneously, its structure is symmetrically distributed within the fisheye, and the overall structure of the fisheye terminal is also symmetrically arranged, offering significant technical advantages. Firstly, compared to conventional connection structures, the X-shaped symmetrical structure can evenly distribute external forces to all directions of the weld leg 1 under stress due to its symmetrical characteristics. When the fisheye terminal is inserted into the plate hole, the symmetrically distributed transition connection 3 ensures that the stress on the terminal is evenly distributed, effectively preventing stress concentration in one area, preventing premature local damage to the structure, and improving the overall fatigue resistance and reliability of the fisheye terminal structure. This symmetrical design also ensures that the terminal experiences balanced forces during insertion and removal, greatly improving the overall insertion and removal force and stability, and preventing loosening or poor contact due to uneven force.

[0027] On the other hand, the X-shaped center point extends to the upper and lower surfaces of the weld leg portion 1, enhancing the structural strength and rigidity of the weld leg portion 1 in the thickness direction. Combined with the symmetrical structure, this ensures that the fisheye terminal maintains good shape stability even under significant external forces, preventing excessive deformation or twisting. This ensures that the elastic deformation function of the fisheye through-hole 2 remains unaffected, allowing it to continue adapting to different insertion and extraction forces. Furthermore, this X-shaped symmetrical transition connection 3 achieves high-strength connection while reducing material usage and production costs. Its regular symmetrical structure is also easier to form during manufacturing, improving production efficiency and enhancing the overall competitiveness of the fisheye terminal structure in practical applications.

[0028] Specifically, the fisheye terminal structure also includes a long strip-shaped terminal base 4, one end of which is connected to the solder foot 1, and the other end is bent into an L-shaped bending portion 5.

[0029] In practical use, one end of the terminal base 4 is connected to the solder foot 1, and the other end is bent into an L-shaped bend 5. This structure gives the fisheye terminal a more flexible installation method and connection form. The L-shaped bend 5 can be easily plugged into or fixedly connected to other electrical components, broadening the application range of the fisheye terminal and enabling it to adapt to different electrical equipment and circuit layout requirements. As the main structure connecting the solder foot 1 and the bend 5, the terminal base 4 can stably transmit electrical signals and mechanical forces, ensuring the integrity and functionality of the entire terminal structure.

[0030] Specifically, the terminal base 4 is provided with a plate portion 6 near the solder foot portion 1. The plate portion 6 protrudes from the terminal base 4 along the width direction of the terminal base 4, and an arc-shaped transition portion 7 is provided between the plate portion 6 and the solder foot portion 1.

[0031] In practical use, a plate portion 6 protruding from the terminal base 4 along its width direction is provided near the solder foot portion 1, and an arc-shaped transition portion 7 is provided between the plate portion 6 and the solder foot portion 1. The plate portion 6 increases the structural strength of the connection area between the terminal base 4 and the solder foot portion 1, effectively preventing breakage in this area during installation or use. The arc-shaped transition portion 7 avoids stress concentration, making force transmission more uniform and smooth, further improving the reliability of the terminal structure. At the same time, the plate portion 6 can also play a certain role in positioning and guiding, facilitating accurate placement of the fisheye terminal during installation and improving installation efficiency.

[0032] Specifically, the connection between the fisheye through hole 2 and the transition connection part 3 is arc-shaped.

[0033] In practical use, the connection between the fisheye through-hole 2 and the transition connection 3 is arc-shaped. This arc-shaped design effectively eliminates sharp edges at the connection, avoiding problems such as localized overheating and material fatigue caused by electric field or stress concentration at the edges when the terminal is subjected to external force or current flow. The arc-shaped connection makes the current distribution more uniform, reduces power loss, and improves the mechanical and electrical properties of the fisheye terminal, extending its service life and enhancing its working stability under complex conditions. The arc shape provides a larger resultant force, thereby providing a relatively large reverse elastic force to improve the insertion and extraction force of the overall fisheye terminal structure.

[0034] Specifically, a chamfered portion 8 is provided between the transition connection portion 3 and the welding foot portion 1.

[0035] In practical use, a chamfered portion 8 is provided between the transition connection portion 3 and the solder foot portion 1. The presence of the chamfered portion 8 allows for a smoother transition of stress between the transition connection portion 3 and the solder foot portion 1, reducing stress abrupt changes and preventing material damage caused by stress concentration. During the processing and manufacturing of the fisheye terminal, the chamfered portion 8 facilitates mold demolding, improving production efficiency and reducing scrap rate. Moreover, the chamfered portion 8 can prevent sharp edges from causing scratches or other injuries to operators, improving product safety and ease of use. The presence of the chamfered portion 8 facilitates demolding and allows for control of the angle of the transition connection portion 3, thereby controlling the corresponding insertion and extraction forces of the fisheye terminal structure.

[0036] Specifically, one end of the solder foot 1 is provided with a second insertion part 9. The second insertion part 9 has an arc-shaped part 11 and a beveled part 12 that are transitionally connected to the solder foot 1. The beveled part 12 and the arc-shaped part 11 are used to guide the solder foot 1 to be inserted into the soldering hole of the circuit board outside.

[0037] In practical use, one end of the solder foot 1 is provided with a second insertion part 9 having an arc-shaped portion 11 and a beveled portion 12. The arc-shaped portion 11 and the beveled portion 12 can play a good guiding role, reducing insertion resistance, simplifying operation, and improving installation efficiency when the solder foot 1 is inserted into the solder hole of the external circuit board. At the same time, this structural design allows the solder foot 1 to be more accurately aligned with the solder hole, reducing soldering defects caused by insertion deviation, ensuring a reliable electrical and mechanical connection between the solder foot 1 and the circuit board, and enhancing the stability and reliability of the fisheye terminal assembly with the circuit board.

[0038] Specifically, the number of inclined surfaces 12 is set to multiple, and multiple inclined surfaces 12 are connected to both sides of the arc surface 11. The arc surface 11 is composed of multiple arc surfaces that are connected in transition, and the inclined surfaces 12 are connected to the corresponding arc surfaces.

[0039] In practical use, multiple beveled surfaces 12 are connected to both sides of the arc-shaped surface 11, and the arc-shaped surface 11 is composed of multiple transitionally connected arc surfaces. This complex structure further optimizes the guiding effect, enabling precise guidance from multiple angles and directions during the insertion of the welding leg 1 into the welding hole, making the insertion process smoother. The combination of multiple beveled surfaces 12 and arc surfaces can better adapt to welding holes of different sizes and shapes, improving the versatility and compatibility of the fisheye terminal. It can also disperse the force during the insertion process, reducing damage to the welding leg 1 and the welding hole, and ensuring assembly quality.

[0040] Specifically, the end of the bent portion 5 is provided with a first insertion portion 13 for connecting and communicating with an external docking component. The first insertion portion 13 has a truncated pyramid structure with a reduced cross-sectional size from the bent portion 5 to the end.

[0041] In practical use, the end of the bent portion 5 is provided with a first insertion portion 13 with a reduced cross-sectional size frustum structure. The frustum structure allows the first insertion portion 13 to be easily inserted into the corresponding interface of the external mating component when it is connected, reducing the difficulty of insertion and improving assembly efficiency. At the same time, as the insertion goes deeper, the frustum structure can form a tight fit with the mating component, increasing the contact area, ensuring good electrical conductivity and mechanical connection strength, effectively preventing signal transmission instability or electrical faults caused by poor contact, and ensuring the reliability and stability of the connection between the fisheye terminal and the external mating component.

[0042] Specifically, the solder foot portion 1 has a flat portion 14, which is on the same horizontal plane as the corresponding surface of the terminal base 4.

[0043] In practical use, the solder foot 1 has a flat portion 14 that is on the same horizontal plane as the corresponding surface of the terminal base 4. This design allows the fisheye terminal to better fit the mounting surface when installed on a circuit board or other equipment, ensuring flatness and reducing stress concentration and poor contact caused by uneven installation. The flat portion 14 also facilitates positioning and fixing during installation, improving installation accuracy and efficiency. Simultaneously, it makes the entire fisheye terminal structure more regular, which is beneficial for rational layout and wiring within electrical equipment.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fisheye terminal structure, characterized in that: It includes a fish-eye-shaped solder foot (1), and multiple fish-eye-shaped through holes (2) are arranged along the length of the solder foot (1). A transition connection (3) is provided between two adjacent fish-eye through holes (2). The fish-eye through holes (2) are designed with multiple holes to enhance the elastic deformation capability of the fish-eye terminal structure so as to adapt to different insertion and extraction force requirements.

2. The fisheye terminal structure according to claim 1, characterized in that: The transition connection (3) has an X-shaped cross-section along the width direction of the weld foot (1), and the center point of the X-shape of the transition connection (3) extends along the thickness direction of the weld foot (1) to the upper and lower surfaces of the weld foot (1).

3. The fisheye terminal structure according to claim 1, characterized in that: The fisheye terminal structure also includes a long strip-shaped terminal base (4), one end of which is connected to the solder foot (1), and the other end is bent into an L-shaped bend (5).

4. The fisheye terminal structure according to claim 3, characterized in that: The terminal base (4) has a plate (6) near the solder foot (1). The plate (6) protrudes from the terminal base (4) along the width direction of the terminal base (4). An arc-shaped transition portion (7) is provided between the plate (6) and the solder foot (1).

5. A fisheye terminal structure according to claim 1, characterized in that: The connection between the fisheye through hole (2) and the transition connection part (3) is arc-shaped.

6. The fisheye terminal structure according to claim 1, characterized in that: A chamfer (8) is provided between the transition connection part (3) and the welding foot part (1).

7. A fisheye terminal structure according to claim 1, characterized in that: One end of the solder foot (1) is provided with a second plug-in part (9). The second plug-in part (9) has an arc-shaped part (11) and a beveled part (12) that are transitionally connected to the solder foot (1). The beveled part (12) and the arc-shaped part (11) are used to guide the solder foot (1) to be inserted into the soldering hole of the circuit board outside.

8. A fisheye terminal structure according to claim 7, characterized in that: The number of the inclined surface (12) is set to multiple, and the multiple inclined surface (12) are connected to both sides of the arc surface (11). The arc surface (11) is composed of multiple arc surfaces that are connected in transition. The inclined surface (12) is connected to the corresponding arc surface.

9. A fisheye terminal structure according to claim 3, characterized in that: The end of the bent portion (5) is provided with a first insertion portion (13) for connecting with an external docking component. The first insertion portion (13) has a truncated pyramid structure with a reduced cross-sectional size from the bent portion (5) to the end.

10. A fisheye terminal structure according to claim 1, characterized in that: The solder foot portion (1) has a flat portion (14), and the flat portion (14) and the corresponding surface of the terminal base (4) are on the same horizontal plane.

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