Fisheye terminal structure with thickened wall thickness

Abstract

A wall-thickness-increased fisheye terminal structure comprises a first terminal and a second terminal which are stacked with each other, the first terminal is sequentially provided with a first connecting plate, a first elastic part and a first plugging part along the axial direction, and the first elastic part is provided with a fisheye through hole; and the second terminal is provided with a second connecting plate, a second elastic part and a second plugging part along the axial direction at one time, the second elastic part is provided with a fisheye blind hole, a protruding part matched with the fisheye through hole is formed on the outer side surface of the bottom, and the protruding part is embedded in the fisheye through hole. After the two terminals are mutually folded and stacked, the overall thickness of the terminals is improved, so that the current-carrying capacity of the terminals is improved, meanwhile, enough elastic force between the terminals and a PCB can be ensured, and the terminals can be stably inserted on the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a fish-eye terminal structure with thickened wall thickness. Background Art

[0002] The fish-eye pin is a new type of terminal that is relatively common in the field of communication connectors. When it is inserted into the insertion hole of the PCB board, the two mutually opposed elastic arms are elastically deformed by the extrusion of the insertion hole, so as to be inserted on the PCB board for electrical connection to transmit signals.

[0003] At present, in order to adapt to the transmission of large-current signals, the terminal needs to be processed thicker. At present, the fish-eye terminal with a wall thickness of 1.2 mm produced in the industry can be used for the transmission of large currents. However, this terminal is still immature. First, there are some difficulties in the production process of the product. Second, after being manufactured and processed, due to the large wall thickness dimension, the insertion hole of the PCB board will be damaged after being inserted onto the PCB board.

[0004] Therefore, there is an urgent need for a fish-eye terminal structure with thickened wall thickness now. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fish-eye terminal structure with thickened wall thickness. To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A fish-eye terminal structure with thickened wall thickness includes a first terminal and a second terminal stacked on each other. The first terminal is sequentially provided with a first connecting plate, a first elastic part, and a first insertion part along the axial direction. The first elastic part includes two symmetrically arranged first elastic arms. One end of each of the two first elastic arms is fixedly connected to the first connecting plate, and the other end is connected to the first insertion part. A fish-eye through hole is arranged between the two first elastic arms;

[0007] The second terminal is sequentially provided with a second connecting plate, a second elastic part, and a second insertion part along the axial direction. The second elastic part includes two symmetrically arranged second elastic arms. One end of each of the second elastic arms is fixedly connected to the second connecting plate, and the other end is connected to the second insertion part. And a bottom is arranged between the two second elastic arms. The bottom makes a fish-eye blind hole formed between the two second elastic arms. A convex part adapted to the fish-eye through hole is formed on the outer surface of the bottom, and the convex part is embedded in the fish-eye through hole.

[0008] Furthermore, the shapes of the first elastic part and the second elastic part are symmetrically arranged with each other, and both the first elastic arm and the second elastic arm are arranged as arc-shaped convex outward, so that the inner walls of the fish-eye through hole and the fish-eye blind hole are arc-shaped convex outward.

[0009] Further, the first elastic part and the second elastic part are sequentially provided with a first deformation area, a holding area, and a second deformation area along the axial direction. The distance between the two first elastic arms gradually increases from the first deformation area to the holding area and gradually decreases from the holding area to the second deformation area; the distance between the two second elastic arms gradually increases from the first deformation area to the holding area and gradually decreases from the holding area to the second deformation area.

[0010] Further, the fish-eye through hole is sequentially provided with a docking area and an elastic area along the thickness direction. The docking area faces the convex part and is provided with an inner wall surface adapted to the outer contour of the convex part.

[0011] Further, the distance between the parts of the two first elastic arms located in the elastic area is smaller than the distance between the parts of the two elastic arms located in the docking area.

[0012] Further, the cross-section of the convex part is in a convex arc structure, so that an arc structure protruding outward is formed at the bottom of the fish-eye blind hole.

[0013] Further, the fish-eye blind hole is sequentially provided with an opening area and a tightening area along the thickness direction. The opening area has a wide-mouth structure, and the distance between the inner walls of the tightening area is substantially the same and smaller than the distance between the two inner walls of the opening area.

[0014] Further, the first connecting plate and the second connecting plate are arranged side by side horizontally and integrally formed. The first connecting plate is folded towards the second connecting plate so that the first terminal and the second terminal are stacked on top of each other.

[0015] Further, the first connecting plate and the second connecting plate are arranged side by side longitudinally and integrally formed. The first connecting plate is folded towards the second connecting plate so that the first terminal and the second terminal are stacked on top of each other.

[0016] The beneficial effects produced by the present utility model are as follows:

[0017] Through a wall thickness structure fish-eye terminal structure provided by an embodiment of the present utility model, after two terminals are folded and stacked with each other, the overall thickness of the terminal can be increased, thereby improving the current-carrying capacity of the terminal. At the same time, since the first elastic part and the second elastic part inserted into the PCB board are still substantially in a separated state, the strength and rigidity of this part are smaller than those of an integrated structure insertion part with the same thickness size. Therefore, after being inserted into the PCB board, it will not cause extrusion damage to the PCB board due to its large volume, and at the same time, it can ensure that there is enough elastic force between the terminal and the PCB board, so that it can be stably inserted onto the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the first terminal and the second terminal of the present utility model in a flat state.

[0020] Figure 3 It is a front view of the present utility model.

[0021] Figure 4 It is a cross-sectional view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] For the convenience of those skilled in the art, the present utility model will be further described below in conjunction with embodiments and drawings. The content mentioned in the embodiments is not a limitation to the present utility model. The present utility model will be described in detail below with reference to the drawings.

[0023] For the convenience of those skilled in the art, the present utility model will be further described below in conjunction with embodiments and drawings. The content mentioned in the embodiments is not a limitation to the present utility model. The present utility model will be described in detail below with reference to the drawings.

[0024] An embodiment of the present utility model provides a wall thickness thickened fish-eye terminal structure. A first terminal 100 having a fish-eye through hole 132 and a second terminal 200 having a fish-eye blind hole 232 are superposed on each other, so as to improve the overall current-carrying capacity. At the same time, the thickness dimension of the fish-eye part is small, and it has appropriate elastic force, which can be clamped into the jack of the PCB board without damaging the PCB board.

[0025] Such as Figures 1-4As shown in the figure, a fish-eye terminal structure with thickened wall thickness includes a first terminal 100 and a second terminal 200 stacked on top of each other. It is characterized in that the first terminal 100 is sequentially provided with a first connecting plate 110, a first elastic part 130 and a first plugging part 120 along the axial direction. The first elastic part 130 includes two symmetrically arranged first elastic arms 131. One end of each of the two first elastic arms 131 is fixedly connected to the first connecting plate 110, and the other end is connected to the first plugging part 120. A fish-eye through hole 132 is arranged between the two first elastic arms 131. The second terminal 200 is sequentially provided with a second connecting plate 210, a second elastic part 230 and a second plugging part 220 along the axial direction. The second elastic part 230 includes two symmetrically arranged second elastic arms 231. One end of each second elastic arm 231 is fixedly connected to the second connecting plate 210, and the other end is connected to the second plugging part 220. And a bottom part 233 is arranged between the two second elastic arms 231. The bottom part 233 makes a fish-eye blind hole 232 formed between the two second elastic arms 231. A convex part 234 adapted to the fish-eye through hole 132 is formed on the outer surface of the bottom part 233, and the convex part 234 is embedded in the fish-eye through hole 132.

[0026] Stack the first terminal 100 and the second terminal 200 to form an integral body, so that the thicknesses of the first connecting plate 110 and the second connecting plate 210 are increased, thereby improving the current-carrying capacity of the terminal. At the same time, the fish-eye through hole 132 and the fish-eye blind hole 232 are respectively arranged on the first elastic part 130 and the second elastic part 230. After being plugged into the jack of the PCB board, it can ensure that the part formed by the first elastic part 130 and the second elastic part 230 can be smoothly plugged on the PCB board. Since the first elastic part 130 and the second elastic part 230 are actually split structures, the overall strength is less than that of the elastic part with the same wall thickness dimension. Therefore, when the two elastic parts are inserted into the PCB board at the same time, it can ensure sufficient elastic force and at the same time ensure that the jack of the PCB will not be damaged due to the too strong rigidity of the elastic arms. Thus, a clamping force can be formed between the first elastic arm 131 and the second elastic arm 231 and the jack under the action of the elastic force, so that the terminal is stably clamped on the PCB board.

[0027] In this embodiment, the first elastic part 130 and the second elastic part 230 are symmetrically arranged in shape, and the first elastic arm 131 and the second elastic arm 231 are both arranged as outwardly convex arcs, so that the inner walls of the fish-eye through hole 132 and the fish-eye blind hole 232 are outwardly convex arcs. Specifically, the first elastic part 130 and the second elastic part 230 are sequentially provided with a first deformation zone 133, a holding zone 134, and a second deformation zone 135 along the axial direction. The distance between the two first elastic arms 131 gradually increases from the first deformation zone 133 to the holding zone 134, and gradually decreases from the holding zone 134 to the second deformation zone 135; the distance between the two second elastic arms 231 gradually increases from the first deformation zone 133 to the holding zone 134, and gradually decreases from the holding zone 134 to the second deformation zone 135.

[0028] During the process of plugging into the PCB board, the first plugging part 120 and the second plugging part 220 are arranged in a conical structure, so that it can be conveniently inserted into the jack of the PCB board. At this time, the first deformation zone 133 is gradually compressed and deformed. When gradually inserting the terminal into the jack, it gradually moves towards the holding zone 134, so that the elastic force exerted by the terminal on the inner wall of the jack gradually increases, so that the plugging of the terminal in the jack can be more stable and tight, ensuring that the terminal can be stably plugged on the PCB board.

[0029] In this embodiment, the fish-eye through hole 132 is sequentially provided with a docking zone 1321 and an elastic zone 1322 along the thickness direction. The docking zone 1321 faces the convex part 234 and is provided with an inner wall surface adapted to the outer contour of the convex part 234. Moreover, the distance between the portions of the two first elastic arms 131 located in the elastic zone 1322 is smaller than the distance between the portions of the two elastic arms located in the docking zone 1321. Through this structure, the convex part 234 can be closely docked with the fish-eye through hole 132, avoiding a large distance between the first elastic part 130 and the second elastic part 230 and reducing the resilience force on the PCB board. At the same time, by making the distance of the elastic zone 1322 smaller than that of the docking zone 1321, the resilience between the two first elastic arms 131 can be further ensured, ensuring the resilience force on the PCB board, so that it can be stably clamped on the PCB board.

[0030] In this embodiment, the cross-section of the convex portion 234 is in a convex arc structure, so that an arc structure protruding outward is formed at the bottom 233 of the fish-eye blind hole 232. Specifically, the fish-eye blind hole 232 is sequentially provided with an opening area 2321 and a tightening area 2322 in the thickness direction. The opening area 2321 has a wide-mouth structure, and the distance between the inner walls of the tightening area 2322 is substantially the same and smaller than the distance between the two inner walls of the opening area 2321. Setting the convex portion 234 as a convex arc structure can facilitate the convex portion 234 to penetrate into the fish-eye through hole 132. By providing the opening area 2321 and the tightening area 2322, the ability of the outer side of the second elastic portion 230 to elastically deform can be enhanced, making it easy to be inserted into the jack. And through the setting of the tightening area 2322, the resilience between the second elastic arms 231 can be increased, and sufficient resilience can be provided to the PCB board to ensure the stability of the insertion on the PCB board.

[0031] In this embodiment, the first connecting plate 110 and the second connecting plate 210 are arranged side by side horizontally and integrally formed. The first connecting plate 110 is folded toward the second connecting plate 210 so that the first terminal 100 and the second terminal 200 are stacked on top of each other.

[0032] In other embodiments, the first connecting plate 110 and the second connecting plate 210 are arranged side by side longitudinally and integrally formed. The first connecting plate 110 is folded toward the second connecting plate 210 so that the first terminal 100 and the second terminal 200 are stacked on top of each other.

[0033] Through a fish-eye terminal structure with a wall thickness architecture provided by an embodiment of the present invention, after the two terminals are folded and stacked on top of each other, the overall thickness of the terminal can be increased, thereby improving the current-carrying capacity of the terminal. At the same time, since the first elastic portion 130 and the second elastic portion 230 inserted into the PCB board are substantially still in a separated state, the strength and rigidity of this part are smaller than those of an integral structure with the same thickness dimension for the insertion part. Therefore, after being inserted into the PCB board, it will not cause extrusion damage to the PCB board due to its large volume, and at the same time, it can ensure that there is sufficient elastic force between the terminal and the PCB board, so that it can be stably inserted into the PCB board.

[0034] The above are only the preferred embodiments of the present utility model, and there is no restriction on the present utility model in any form. Although the present utility model is disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art, within the scope of the technical solution of the present utility model, when making some changes or modifications using the above-disclosed technical content to equivalent embodiments of equivalent changes, but as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the present utility model all fall within the scope of the technical solution of the present utility model.

Claims

1. A fisheye terminal structure with thickened wall thickness, comprising a first terminal and a second terminal stacked on each other, characterized in that: The first terminal is provided with a first connecting plate, a first elastic portion and a first plug-in portion in sequence along the axial direction, the first elastic portion includes two symmetrically arranged first elastic arms, one end of the two first elastic arms is fixedly connected to the first connecting plate, and the other end is connected to the first plug-in portion, and a fisheye through hole is provided between the two first elastic arms; The second terminal is axially provided with a second connecting plate, a second elastic portion and a second plug-in portion, the second elastic portion includes two symmetrically arranged second elastic arms, one end of the second elastic arm is fixedly connected to the second connecting plate, and the other end is connected to the second plug-in portion, and a bottom is provided between the two second elastic arms, the bottom forms a fisheye blind hole between the two second elastic arms, and a protrusion matched with the fisheye through hole is formed on the outer surface of the bottom, and the protrusion is embedded in the fisheye through hole.

2. The thickened fisheye terminal structure according to claim 1, characterized in that: The first elastic portion and the second elastic portion are symmetrically arranged, and the first elastic arm and the second elastic arm are both arranged in an arc shape convex outward, so that the inner walls of the fisheye through hole and the fisheye blind hole are arc shapes convex outward.

3. The thickened fisheye terminal structure according to claim 2, characterized in that: The first elastic portion and the second elastic portion are sequentially provided with a first deformation zone, a retaining zone and a second deformation zone along the axial direction, and the distance between the two first elastic arms gradually increases from the first deformation zone to the retaining zone, and gradually decreases from the retaining zone to the second deformation zone; the distance between the two second elastic arms gradually increases from the first deformation zone to the retaining zone, and gradually decreases from the retaining zone to the second deformation zone.

4. The thickened fisheye terminal structure according to claim 1, characterized in that: The fisheye through hole is provided with a docking area and an elastic area in sequence along the thickness direction, the docking area faces the direction of the protruding portion and is provided with an inner wall surface adapted to the outer contour of the protruding portion.

5. The fisheye terminal structure with thickened wall according to claim 4, characterized in that: The distance between the parts of the two first elastic arms located in the elastic area is smaller than the distance between the parts of the two elastic arms located in the docking area.

6. The thickened fisheye terminal structure according to claim 1, characterized in that: The cross section of the raised portion is a convex arc structure, so that the bottom of the fisheye blind hole is formed with an arc structure convex toward the outside.

7. The thickened fisheye terminal structure according to claim 6, characterized in that: The fisheye blind hole is sequentially provided with an opening area and a tightening area along the thickness direction. The opening area is a wide-mouth structure. The spacing between the inner walls of the tightening area is substantially the same and smaller than the spacing between the two inner walls of the opening area.

8. The thickened fisheye terminal structure according to claim 1, characterized in that: The first connecting plate and the second connecting plate are arranged side by side in a horizontal direction and are integrally formed. The first connecting plate is folded toward the second connecting plate so that the first terminal and the second terminal are stacked on each other.

9. The thickened fisheye terminal structure according to claim 1, characterized in that: The first connecting plate and the second connecting plate are arranged side by side longitudinally and are integrally formed, and the first terminal and the second terminal are stacked on each other in a folded manner in the direction of the first connecting plate toward the second connecting plate.

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