Fisheye connection terminal and connector for PCB

Abstract

The invention relates to the field of electronic devices, and discloses a fisheye connection terminal and a connector for a PCB. The fisheye connection terminal comprises a base part, two elastic arms, an insertion part and two groups of net-shaped cross-shaped reinforcing ribs, one ends of the elastic arms are connected with the base part, the two elastic arms are oppositely arranged to form a fisheye hole, the insertion part is connected with the other ends of the elastic arms, and the net-shaped cross-shaped reinforcing ribs are fixedly connected into the fisheye hole in a protruding mode towards the outside of the fisheye hole. According to the fisheye connection terminal, the retaining force of the fisheye connection terminal is improved by arranging the net-shaped cross-shaped reinforcing ribs in the fisheye holes, the stability of the fisheye connection terminal structure is kept in the extrusion deformation process, the net-shaped cross-shaped reinforcing ribs protrude outwards, and the center intersection points of the net-shaped cross-shaped reinforcing ribs make contact with the conductive holes in an attached mode; it is ensured that the fish-eye connection terminal does not incline in the insertion process, the contact stability is ensured, the resistance is improved and reduced, the large-current conductive requirement is met, and the circuit connection and signal transmission functions of a product are ensured.

Description

Technical Field

[0001] The invention relates to the field of electronic devices, and in particular to a fisheye connecting terminal and a connector for a PCB board. Background Art

[0002] There are many fisheye terminal products in the current market, with hollow and solid structures. The fisheye terminal is realized by elastically squeezing the elastic part in the conductive hole of the PCB board, so that the fisheye terminal can be smoothly inserted into the conductive hole, while maintaining the connection with the PCB board, so as to realize the electrical connection between the fisheye terminal and the PCB board, and realize the current connection without welding. However, the common fisheye terminal is prone to insufficient terminal connection retention force and excessive contact resistance, and even causes deformation and loosening of the terminal, which seriously affects the signal transmission function of the product. Summary of the invention

[0003] In order to overcome the above technical problems, the present invention provides a fisheye connection terminal, which improves the holding force of the fisheye connection terminal by arranging a mesh cross reinforcement rib in the fisheye hole, and maintains the stability of the fisheye connection terminal structure during the process of the fisheye connection terminal being squeezed and deformed. At the same time, the mesh cross reinforcement rib protrudes outward, and the central intersection thereof is in contact with the conductive hole, thereby ensuring that the fisheye connection terminal will not be skewed during the insertion process, ensuring the stability of the contact, improving and reducing the resistance, meeting the conductivity requirements of large currents, and ensuring the circuit connection and signal transmission functions of the product.

[0004] In order to achieve the above object, the present invention provides a fisheye connection terminal on one hand, the fisheye connection terminal comprising:

[0005] base;

[0006] Two elastic arms, one end of each elastic arm is connected to the base, and a fisheye hole is formed between the two elastic arms;

[0007] an insertion portion, the insertion portion being connected to the other end of the elastic arm;

[0008] Two groups of mesh cross reinforcement ribs are arranged opposite to each other, and the mesh cross reinforcement ribs are protruded outward of the fish eye hole and fixedly connected to the fish eye hole.

[0009] Preferably, an outer cross-section of the elastic arm is provided with a first chamfer.

[0010] Preferably, an arc portion is provided at one end of the elastic arm close to the base, the maximum width formed between the two arc portions is greater than the width of the conductive hole of the PCB board, and the minimum width formed between the two arc portions is smaller than the width of the conductive hole of the PCB board.

[0011] Preferably, semicircular holes are arranged on both ends of the fisheye hole adjacent to the base and the insertion part, and a protrusion is arranged at the connection between the semicircular hole and the fisheye hole.

[0012] Preferably, two vertical ends of the mesh cross reinforcement ribs are respectively connected to the inner walls of the two semicircular holes, and two transverse ends of the mesh cross reinforcement ribs are respectively connected to the transverse central cross-section of the fisheye hole.

[0013] Preferably, the initial position of the central intersection of the mesh cross reinforcement ribs is set in the fisheye hole, and the cross-section of the central intersection coincides with the upper and lower surfaces of the fisheye connecting terminal.

[0014] Preferably, a second chamfer is provided around the front end of the insertion portion.

[0015] On the other hand, the present invention provides a connector for a PCB board, the connector comprising:

[0016] A plurality of fisheye connection terminals as claimed in any one of the above claims;

[0017] A substrate is electrically connected to a base of the fisheye connection terminal.

[0018] Through the above technical scheme, the fisheye connection terminal improves the holding force of the fisheye connection terminal by arranging a mesh cross reinforcement rib in the fisheye hole, and maintains the stability of the fisheye connection terminal structure during the process of the fisheye connection terminal being squeezed and deformed; a first chamfer is arranged on the outer cross section of the elastic arm to avoid scratching the coating inside the guide hole, and a second chamfer is arranged around the front end of the insertion part to ensure guidance during insertion and avoid damaging the coating inside the guide hole; an arc portion is arranged at one end of the elastic arm close to the base, and the distance between the two arc portions is set to limit the insertion depth; at the same time, two groups of mesh cross reinforcement ribs protrude outward, and after squeezing, the central intersection thereof is in contact with the conductive hole, ensuring that the fisheye connection terminal will not be skewed during the insertion process, ensuring the stability of the contact, improving and reducing the resistance, meeting the conductivity requirements of large currents, and ensuring the circuit connection and signal transmission functions of the product; BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a fisheye connecting terminal according to an embodiment of the present invention;

[0020] Figure 2 FIG. 4 is a schematic cross-sectional view in a vertical direction of a fisheye connecting terminal according to an embodiment of the present invention.

[0021] Description of Reference Numerals

[0022] 1. Base 2. Elastic arm

[0023] 3. Insertion part 4. Mesh cross reinforcement ribs

[0024] 21. First chamfer 22. Arc portion

[0025] 23. Semicircular hole 24. Protrusion

[0026] 25. Fisheye hole 31. Second chamfer DETAILED DESCRIPTION

[0027] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0028] In the embodiments of the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings or are used to describe the relative positional relationships of components in the vertical, perpendicular or gravity direction.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] like Figure 1 FIG. 1 is a schematic diagram of the structure of a fisheye connection terminal according to an embodiment of the present invention; Figure 1 The fisheye connection terminal includes a base 1, two elastic arms 2, an insertion portion 3 and two groups of mesh cross reinforcement ribs 4. Specifically, one end of the elastic arm 2 is connected to the base 1, and the two elastic arms 2 are arranged opposite to each other to form a fisheye hole 25. The insertion portion 3 is connected to the other end of the elastic arm 2. The two groups of mesh cross reinforcement ribs 4 are arranged opposite to each other, and the mesh cross reinforcement ribs 4 are protruded outside the fisheye hole 25 and fixedly connected in the fisheye hole 25.

[0031] Through the above technical solution, the fisheye connection terminal improves the holding force of the fisheye connection terminal by arranging a mesh cross reinforcement rib in the fisheye hole, and maintains the stability of the fisheye connection terminal structure during the process of the fisheye connection terminal being squeezed and deformed. At the same time, the mesh cross reinforcement rib protrudes outward, and the central intersection thereof is in contact with the conductive hole, ensuring that the fisheye connection terminal will not be skewed during the insertion process, ensuring the stability of the contact, improving and reducing the resistance, meeting the conductivity requirements of large currents, and ensuring the circuit connection and signal transmission functions of the product.

[0032] exist Figure 1 In order to prevent the external structure of the fisheye connection terminal from damaging the plating inside the conductive hole of the PCB board; in one embodiment of the present invention, the outer cross-section of the elastic arm 2 is provided with a first chamfer 21, and the front end of the insertion portion 3 is provided with a second chamfer 31. The chamfer setting can minimize the damage to the plating during the insertion of the fisheye connection terminal; at the same time, in order to facilitate the insertion of the fisheye connection terminal into the conductive hole, in one embodiment of the present invention, the front end of the insertion portion 3 of the fisheye connection terminal is provided with a second chamfer 31 around it, which plays a guiding role.

[0033] exist Figure 1 In order to limit the insertion of the fisheye connecting terminal, in one embodiment of the present invention, an arc portion 22 is provided at one end of the elastic arm 2 close to the base, and the maximum width formed between the two arc portions 22 is greater than the width of the conductive hole of the PCB board, and the minimum width formed between the two arc portions 22 is less than the width of the conductive hole of the PCB board, so that during the insertion process of the fisheye segment, the arc portion 22 can guide the insertion and limit the excessive insertion at the final end, thereby playing a limiting role.

[0034] like Figure 2 FIG. 1 is a schematic cross-sectional view of a fisheye connecting terminal according to an embodiment of the present invention in a vertical direction; FIG. Figure 1 and 2 In order to facilitate the fisheye connection terminal to be squeezed into the hole structurally and to ensure the strength of the structure, in one embodiment of the present invention, semicircular holes 23 are provided at both ends of the fisheye hole 25 adjacent to the base 1 and the insertion part 2, and a protrusion 24 is provided at the connection between the semicircular hole 23 and the fisheye hole 25. In order to ensure the stability of the structure and prevent the mesh cross reinforcement ribs 4 from being skewed, in one embodiment of the present invention, the vertical ends of the mesh cross reinforcement ribs 4 are respectively connected to the inner walls of the two semicircular holes 23, and the lateral ends of the mesh cross reinforcement ribs 4 are respectively connected to the lateral central section of the fisheye hole 25. The reasonable arrangement of the mesh cross reinforcement ribs 4 ensures the structural stability and reliability of the fisheye connection terminal.

[0035] exist Figure 1 and Figure 2In order to avoid obstruction caused by the mesh cross reinforcement ribs 4 during the insertion process, in one embodiment of the present invention, the initial position of the central intersection of the mesh cross reinforcement ribs 4 should be set in the fisheye hole 25. Figure 1 and 2 In the embodiment, the initial position of the central intersection of the mesh cross reinforcement ribs 4 fits the plane where the upper and lower surfaces of the fisheye connection terminal are located, thereby ensuring the normal use of the fisheye connection terminal.

[0036] Another aspect of the present invention provides a connector for a PCB board, the connector comprising a plurality of fisheye connection terminals and a substrate as described in any one of the above claims, the substrate being electrically connected to the base of the fisheye connection terminal, and a plurality of fisheye connection terminals can be connected to one substrate, which is convenient for integration and use, and meets the requirements of large current terminal use.

[0037] Through the above technical scheme, the fisheye connection terminal is provided with a feature that the holding force of the fisheye connection terminal is improved by arranging a mesh cross reinforcement rib in the fisheye hole, and the stability of the fisheye connection terminal structure is maintained during the process in which the fisheye connection terminal is squeezed and deformed; a first chamfer is provided on the outer cross section of the elastic arm to avoid scratching the coating inside the guide hole, and a second chamfer is provided around the front end of the insertion portion to ensure guidance during insertion and avoid damaging the coating inside the guide hole; an arc portion is provided at one end of the elastic arm close to the base, and a distance is set between the two arc portions to limit the insertion depth; at the same time, two groups of mesh cross reinforcement ribs protrude outward, and after squeezing, the central intersection thereof is in contact with the conductive hole, ensuring that the fisheye connection terminal will not be skewed during insertion, ensuring the stability of the contact, improving and reducing the resistance, meeting the conductivity requirements of large currents, and ensuring the circuit connection and signal transmission functions of the product;

[0038] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0039] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A fisheye connection terminal, characterized in that: The fisheye connection terminal comprises: base; Two elastic arms, one end of each elastic arm is connected to the base, and a fisheye hole is formed between the two elastic arms; an insertion portion, the insertion portion being connected to the other end of the elastic arm; Two groups of mesh cross reinforcement ribs are arranged opposite to each other, and the mesh cross reinforcement ribs are protruded outward of the fish eye hole and fixedly connected to the fish eye hole.

2. The fisheye connection terminal according to claim 1, characterized in that: The outer cross section of the elastic arm is provided with a first chamfer.

3. The fisheye connection terminal according to claim 1, characterized in that: An arc portion is provided at one end of the elastic arm close to the base, the maximum width formed between the two arc portions is greater than the width of the conductive hole of the PCB board, and the minimum width formed between the two arc portions is less than the width of the conductive hole of the PCB board.

4. The fisheye connection terminal according to claim 1, characterized in that: Semicircular holes are arranged on the two ends of the fisheye hole adjacent to the base and the insertion part, and a protrusion is arranged at the connection between the semicircular hole and the fisheye hole.

5. The fisheye connecting terminal according to claim 4, characterized in that: The two vertical ends of the mesh cross reinforcement ribs are respectively connected to the inner walls of the two semicircular holes, and the two transverse ends of the mesh cross reinforcement ribs are respectively connected to the transverse central cross-section of the fisheye hole.

6. The fisheye connecting terminal according to claim 1, characterized in that: The initial position of the central intersection of the mesh cross reinforcement ribs is set in the fisheye hole, and the section of the central intersection coincides with the plane where the upper and lower surfaces of the fisheye connecting terminal are located.

7. The fisheye connecting terminal according to claim 1, characterized in that: The front end of the inserting portion is provided with a second chamfer around its periphery.

8. A connector for a PCB board, characterized in that: The connector comprises: A plurality of fisheye connecting terminals as described in any one of claims 1 to 7; A substrate is electrically connected to a base of the fisheye connection terminal.

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