CN217934253U - Fisheye terminal with thickness step structure and electric connector - Google Patents
Fisheye terminal with thickness step structure and electric connector Download PDFInfo
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- CN217934253U CN217934253U CN202221059863.2U CN202221059863U CN217934253U CN 217934253 U CN217934253 U CN 217934253U CN 202221059863 U CN202221059863 U CN 202221059863U CN 217934253 U CN217934253 U CN 217934253U
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- elastic arm
- stepped
- fisheye terminal
- fisheye
- arm
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Abstract
An embodiment of the utility model provides a fisheye terminal and electric connector with thickness stair structure belongs to the connector field. The fisheye terminal includes: the guide structure is used for guiding the fisheye terminal to be inserted into a hole of the PCB; elastic construction, elastic construction's top with guide structure connects, elastic construction is including first step elastic arm and the second step elastic arm that the symmetry set up, first step elastic arm with the both ends interconnect of second step elastic arm, first step elastic arm with the thickness of one side that second step elastic arm is close to each other is greater than the thickness of one side of keeping away from. The utility model provides a pair of fisheye terminal with thickness stair structure through setting up outer thin interior thick first ladder elastic arm and second ladder elastic arm, makes it both to satisfy the required great elasticity of fisheye terminal, has satisfied the required special plug power of the PCB plate of different ranks again for the signal transmission of the fisheye terminal of thin structure is more stable.
Description
Technical Field
The utility model relates to a connector field specifically relates to a fisheye terminal and electric connector with thickness stair structure.
Background
Electronic connectors are typically connected to a circuit board, and fisheye terminals are commonly used in the market to address the insertion of a single PIN into a hole of a PCB board, thereby electrically connecting the electronic connector to the circuit board. The mode is different from the traditional welding mode, and because the welding-free mode is adopted, the use of the soldering flux is reduced, and the adverse reaction in a high-temperature tin furnace is avoided.
However, in the application environment of the automobile and other special working conditions, the requirement on the automobile electrical system is very high, the fisheye terminal is a key component for power and signal transmission in the automobile electrical system, but the fisheye terminal in the market has many defects, for example, under the condition that a large elastic force is required, namely the thickness of the fisheye terminal is less than 0.4mm, the fisheye terminal in the market with a single thin structure cannot meet the special insertion and extraction force requirements of different grades of PCB hole, so that the contact impedance of the fisheye terminal is unstable, and further the signal transmission of the fisheye terminal is influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at provides a fisheye terminal and electric connector with thickness stair structure solves the unstable problem of contact impedance when current fisheye terminal needs great elastic force.
In order to achieve the above object, an embodiment of the present invention provides a fisheye terminal with a thickness ladder structure, the fisheye terminal includes:
the guide structure is used for guiding the fisheye terminal to be inserted into a hole of the PCB;
elastic construction, elastic construction's top with guide structure connects, elastic construction is including first step elastic arm and the second step elastic arm that the symmetry set up, first step elastic arm with the both ends interconnect of second step elastic arm, first step elastic arm with the thickness of one side that second step elastic arm is close to each other is greater than the thickness of one side of keeping away from, makes the outer thin inner thickness's of formation stairstepping cross-section, so that first step elastic arm with second step elastic arm with the inner wall laminating butt of PCB diaphragm orifice.
Optionally, the cross section of the first stepped elastic arm and the cross section of the second stepped elastic arm are both in a shape of a boss with two wide ends and a narrow middle.
Optionally, the cross-section of guide structure bottom is the cross, the cross is two both ends wide narrow boss shape symmetry laminating in the middle of.
Optionally, the thicknesses of the outer side of the first stepped elastic arm and the outer side of the second stepped elastic arm are both less than or equal to 0.4mm.
Optionally, a hollow fisheye hole is defined between the first stepped elastic arm and the second stepped elastic arm, and the fisheye hole is in a fusiform flat shape.
Optionally, the top of the guiding structure is provided with a convex sharp-corner arc shape.
Optionally, both ends of the bottom of the guide structure are provided with arc chamfers, and the top end of the first stepped elastic arm and the top end of the second stepped elastic arm are connected with the guide structure through the arc chamfers.
Optionally, the outer sides of the first stepped elastic arm and the second stepped elastic arm are both arc-shaped, and the inner sides of the first stepped elastic arm and the second stepped elastic arm are both arc-shaped.
Optionally, the fisheye terminal further includes a base, and the bottom end of the first stepped elastic arm and the bottom end of the second stepped elastic arm are both connected to the top end of the base.
On the other hand, the utility model discloses still provide an electric connector, include as above any one the fisheye terminal.
Through the technical scheme, the utility model provides a fisheye terminal and electric connector with thickness stair structure, set up to outer thin inner thickness's stairstepping cross-section through first ladder elastic arm in with elastic construction and second ladder elastic arm, under the condition of the demand of the thin thickness structure of fisheye terminal, through setting up the outside into required thin thickness, the inboard sets up to the thick thickness corresponding with the outside, combine together inside and outside, make it both to satisfy the required great elasticity of fisheye terminal, the required special plug power demand of the PCB plate of different ranks has been satisfied again, make the contact impedance of the fisheye terminal of thin structure stable, signal transmission is stable.
Other features and advantages of embodiments of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments, but do not limit the embodiments. In the drawings:
fig. 1 is a perspective view of a fisheye terminal provided with a thick-thin stepped structure according to an embodiment of the invention;
fig. 2 is a front view of a fisheye terminal provided with a thick-thin stepped structure according to an embodiment of the invention;
fig. 3 is a side view of a fisheye terminal provided with a thick-thin stepped structure according to an embodiment of the invention;
fig. 4 is a sectional view of an elastic structure of a fisheye terminal according to an embodiment of the invention;
fig. 5 is a cross-sectional view of a guide structure bottom of the fisheye terminal according to an embodiment of the invention.
Description of the reference numerals
1. Guide structure 2, elastic structure
3. Base 21, first step elastic arm
22. Second step elastic arm 23 and fisheye hole
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description herein is provided for purposes of illustration and explanation, and is not intended to limit the embodiments of the invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a fisheye terminal with a thickness ladder structure, including: the guide structure 1 is used for guiding the fisheye terminal to be inserted into a hole of the PCB; elastic construction 2, elastic construction 2's top is connected with guide structure 1, elastic construction 2 is including first ladder elastic arm 21 and the second ladder elastic arm 22 that the symmetry set up, the both ends interconnect of first ladder elastic arm 21 and second ladder elastic arm 22, the thickness of one side that first ladder elastic arm 21 and second ladder elastic arm 22 are close to each other is greater than the thickness of one side of keeping away from, make the outer thin stairstepping cross-section of inside thickness that forms, so that the inner wall laminating butt of first ladder elastic arm 21 and second ladder elastic arm 22 and PCB diaphragm orifice.
In this embodiment, specifically, guide structure 1 is used for leading to the fisheye terminal, make the fisheye terminal can insert in advance in the PCB diaphragm orifice, at the in-process that inserts the PCB board, guide structure 1 inserts in advance in the PCB board, elastic construction 2 inserts in the PCB board immediately, first ladder elastic arm 21 and second ladder elastic arm 22 in the elastic construction 2 receive the extrusion of PCB diaphragm orifice inner wall and begin to produce elastic deformation, the elastic force of first ladder elastic arm 21 and second ladder elastic arm 22 constantly increases, until first ladder elastic arm 21 and second ladder elastic arm 22 get into in the PCB diaphragm orifice completely, first ladder elastic arm 21 and second ladder elastic arm 22 and the laminating between the PCB diaphragm orifice inner wall tightly produce stable holding power, make first ladder elastic arm 21 and second ladder elastic arm 22 can and form stable signal of telecommunication transmission between the PCB board.
In this embodiment, specifically, set up first ladder elastic arm 21 and second ladder elastic arm 22 into the stairstepping of outer thin inner thickness, the outside of first ladder elastic arm 21 and second ladder elastic arm 22 increases to inboard thickness gradually, the increase of its thickness is cascaded growth, so set up, make first ladder elastic arm 21 and second ladder elastic arm 22 can satisfy the elastic force that thinner thickness corresponds, simultaneously under guaranteeing that the flake terminal has the great elastic force condition, the required special plug power of the PCB plate of different levels can be satisfied again to inboard great thickness, the user is when inserting or extracting the flake terminal, the flake terminal can not cause the buckling, the contact impedance of the flake terminal of having guaranteed thin structure is more stable, signal transmission is more stable.
Further, referring to fig. 4, the cross section of the first stepped elastic arm 21 and the cross section of the second stepped elastic arm 22 are each in the shape of a boss having two wide ends and a narrow middle. Specifically, the first stepped elastic arm 21 and the second stepped elastic arm 22 are stepped, and the thickness thereof increases in a stepwise manner in fig. 4, which is a corresponding cross-sectional view.
Further, referring to fig. 5, the cross section of the bottom end of the guiding structure 1 is cross-shaped, and the cross-shape is two bosses with two wide ends and a narrow middle part which are symmetrically attached. Specifically, the two ends of the first stepped elastic arm 21 and the second stepped elastic arm 22 are connected to form a joint end, and the upper surface of the joint end is cross-shaped, so that the cross section of the bottom end of the guide structure 1 connected with the joint end is cross-shaped to match with the joint end.
Further, referring to fig. 1 to 3, the thicknesses of the outer sides of the first stepped elastic arms 21 and the outer sides of the second stepped elastic arms 22 are each less than or equal to 0.4mm. Specifically, when needing great elastic force, reduce the first ladder elastic arm 21 and the second ladder elastic arm 22 thickness of fisheye terminal, make its thickness be less than or equal to 0.4mm for the elastic force of the first ladder elastic arm 21 and the second ladder elastic arm 22 of fisheye terminal increases, so fisheye terminal required plug-pull force can corresponding reduction when inserting or extracting, make the user not need great plug-pull force can insert the fisheye terminal in the PCB plate hole. In practical production, the thicknesses of the first stepped elastic arm 21 and the second stepped elastic arm 22 of the fisheye terminal can also be set to be larger than 0.4mm, such as the conventional thicknesses of 0.60mm,0.64mm,0.80mm and the like.
Further, referring to fig. 1 to 3, a hollow fisheye hole 23 is defined between the first stepped elastic arm 21 and the second stepped elastic arm 22, and the fisheye hole 23 is in a fusiform flat shape. Specifically, the inner walls of the first stepped elastic arm 21 and the second stepped elastic arm 22 are smooth arc surfaces, two ends of the first stepped elastic arm 21 and the second stepped elastic arm 22 are connected with each other, that is, two sections of smooth arc surfaces are connected with each other to enclose a flat shuttle shape, when the fisheye terminal is inserted into a PCB, the length of the fisheye hole 23 in the horizontal direction is reduced along with the increase of the elastic force of the first stepped elastic arm 21 and the second stepped elastic arm 22, and the length of the fisheye hole 23 in the vertical direction is increased along with the increase of the elastic force of the first stepped elastic arm 21 and the second stepped elastic arm 22.
Further, referring to fig. 1 to 3, the top of the guide structure 1 is provided in a convex sharp-pointed arc shape. Specifically, guide structure 1 is arranged in guiding the fisheye terminal to insert in the PCB diaphragm orifice, sets up to the closed angle arcuation can reduce and receive the produced resistance that comes from PCB diaphragm orifice inner wall extrusion in inserting the PCB diaphragm orifice, conveniently guides elastic construction 2 among the fisheye terminal to get into in the PCB diaphragm orifice.
Further, referring to fig. 1 to 2, both ends of the bottom of the guiding structure 1 are provided with arc chamfers, and the top end of the first stepped elastic arm 21 and the top end of the second stepped elastic arm 22 are connected with the guiding structure 1 through the arc chamfers. Specifically, the top of first ladder elastic arm 21 and the top of second ladder elastic arm 22 are linked and are formed and combine the end, and guide structure 1's bottom and the end phase-match that combines set up the arc chamfer and make guide structure 1 smooth with the junction edge that combines the end, reduce and receive the resistance that comes from PCB diaphragm orifice inner wall extrusion and produce in inserting the PCB diaphragm orifice.
Further, referring to fig. 1 to 3, the fisheye terminal further includes a base 3, and a bottom end of the first stepped elastic arm 21 and a bottom end of the second stepped elastic arm 22 are connected to a top end of the base 3. Specifically, the bottom end of the first stepped elastic arm 21 and the bottom end of the second stepped elastic arm 22 are connected to form a connection end, and the bottom of the connection end is connected to the top of the base 3, so as to increase the strength of the fisheye terminal and prevent the fisheye terminal from buckling when being inserted into a PCB.
Further, the present invention also provides an electrical connector, specifically, the electrical connector includes the fisheye terminal as described above.
Through the technical scheme, the utility model provides a fisheye terminal and electric connector with thickness stair structure, set up to the stairstepping cross-section of outer thin inside thickness through first ladder elastic arm 21 with second ladder elastic arm 22 with in the elastic construction 2, under the condition of the demand of the thin thickness structure of fisheye terminal, through setting up the outside into required thinner thickness, the inboard sets up to the thick thickness corresponding with the outside, combine together inside and outside, make it both to satisfy the great elasticity of fisheye terminal, the required special plug power demand of the PCB plate of different ranks has been satisfied again, thereby it is stable to reach the contact impedance who makes the fisheye terminal of thinner structure, signal transmission is stable.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a fisheye terminal with thickness stair structure which characterized in that, fisheye terminal includes:
the guide structure (1) is used for guiding the fisheye terminal to be plugged with a hole of the PCB;
elastic construction (2), the top of elastic construction (2) with guide structure (1) is connected, elastic construction (2) including first ladder elastic arm (21) and second ladder elastic arm (22) that the symmetry set up, first ladder elastic arm (21) with the both ends interconnect of second ladder elastic arm (22), first ladder elastic arm (21) with the thickness of one side that second ladder elastic arm (22) are close to each other is greater than the thickness of one side of keeping away from, makes the outer thin inner thickness's of formation stairstepping cross-section, so that first ladder elastic arm (21) with second ladder elastic arm (22) with the inner wall laminating butt of PCB diaphragm orifice.
2. The fisheye terminal of claim 1, wherein the cross section of the first stepped resilient arm (21) and the cross section of the second stepped resilient arm (22) are each in the shape of a boss with two wide ends and a narrow middle.
3. Fisheye terminal according to claim 1, characterised in that the cross-section of the bottom end of the guide structure (1) is cross-shaped, and the cross-shape is formed by symmetrically attaching two bosses with wide ends and narrow middle.
4. Fisheye terminal according to claim 1, characterised in that the thickness of the outer side of the first stepped resilient arm (21) and the outer side of the second stepped resilient arm (22) is less than or equal to 0.4mm.
5. The fisheye terminal as claimed in claim 1, wherein a hollow fisheye hole (23) is defined between the first stepped elastic arm (21) and the second stepped elastic arm (22), and the fisheye hole (23) is in the shape of a fusiform flat.
6. Fisheye terminal according to claim 1, characterised in that the top of the guide structure (1) is arranged in a convex pointed arc.
7. The fisheye terminal of claim 1, characterized in that both ends of the bottom of the guiding structure (1) are provided with arc chamfers, and the top end of the first stepped elastic arm (21) and the top end of the second stepped elastic arm (22) are connected with the guiding structure (1) through the arc chamfers.
8. Fisheye terminal according to claim 1, characterised in that the outer sides of the first stepped spring arm (21) and the second stepped spring arm (22) are rounded and the inner sides of the first stepped spring arm (21) and the second stepped spring arm (22) are rounded.
9. Fisheye terminal according to claim 1, characterised in that it further comprises a base (3), the bottom ends of the first and second stepped elastic arms (21, 22) being connected to the top end of the base (3).
10. An electrical connector comprising the fisheye terminal of any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221059863.2U CN217934253U (en) | 2022-04-26 | 2022-04-26 | Fisheye terminal with thickness step structure and electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221059863.2U CN217934253U (en) | 2022-04-26 | 2022-04-26 | Fisheye terminal with thickness step structure and electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217934253U true CN217934253U (en) | 2022-11-29 |
Family
ID=84175285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221059863.2U Active CN217934253U (en) | 2022-04-26 | 2022-04-26 | Fisheye terminal with thickness step structure and electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217934253U (en) |
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2022
- 2022-04-26 CN CN202221059863.2U patent/CN217934253U/en active Active
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