A floating jack terminal structure

Abstract

The present invention discloses a floating jack terminal structure, comprising: the outer conductor is of a cylindrical structure, and is successively provided with a first cavity, a second cavity and a third cavity from top to bottom; a feature wall and an inner wall surface are provided on the outer side of the third cavity; the inner conductor includes an intermediate annular wall, one end of the annular wall is provided with equidistant second gaps, and the second gaps form at least one pair or two pairs of inwardly contracting elastic arms one and two, and the elastic arms one and two are in a contracted state towards the center of the ring. The other end of the annular wall is provided with equidistant first gaps, and the first gaps form at least one pair or two pairs of outwardly expanding elastic arms three and four, and the elastic arms three and four are in an outwardly expanding state towards the outer side of the ring. The present invention has the advantages of simple and compact structure, high reliability, high cost-effectiveness and strong environmental adaptability.

Description

Technical Field

[0001] The present invention relates to a floating jack terminal structure, belonging to the technical field of connectors. Background Art

[0002] As the main port for device interconnection, with the development of technology and diverse requirements for device usage scenarios, more and more connectors need to perform floating connection with tolerance by themselves. Most of the existing connections on the PCB board are to add backplane connectors on the PCB board, which forces the engineers in mechanical and electrical structure design to sacrifice more three-dimensional space, or directly weld the components on the PCB board, resulting in great difficulty and high cost in the later replacement and maintenance of components. A floating jack terminal structure mentioned in this article directly presses the floating jack terminal containing the present invention on the through holes of the PCB board, and the components are directly inserted into the floating jack terminals in the PCB board. Thus, it not only solves the problem of large occupied space of the original inter-board connector solution, but also solves the problem of difficult maintenance and replacement of components in the original method of directly welding components on the PCB board. More importantly, it solves the technical problem that the rigid pin dimensions of electronic components need a floating jack terminal to absorb tolerance. Summary of the Invention

[0003] The purpose of the present invention is to provide a floating jack terminal structure to solve the defect in the prior art that the rigid pin dimensions of electronic components need a floating jack terminal to absorb tolerance.

[0004] A floating jack terminal structure includes:

[0005] An outer conductor, the outer conductor is of a cylindrical structure, and is successively provided with a first cavity, a second cavity and a third cavity from top to bottom; a characteristic wall and an inner wall surface are provided on the outside of the third cavity;

[0006] An inner conductor, the inner conductor includes a middle annular wall, one end of the annular wall is provided with equally spaced second gaps, the second gaps form at least one pair or two pairs of inwardly contracting elastic arms one and elastic arms two, the elastic arms one and elastic arms two are in a contracted state towards the center of the ring, the other end of the annular wall is provided with equally spaced first gaps, the first gaps form at least one pair or two pairs of outwardly expanding elastic arms three and elastic arms four, the elastic arms three and elastic arms four are in an outwardly expanding state towards the outside of the ring;

[0007] The inner conductor is assembled inside the second cavity and the third cavity of the outer conductor, the elastic arms three and elastic arms four are in close contact with the inner wall surface, and the outer diameter of the annular wall is smaller than the outer diameter of the second cavity to form a clearance fit.

[0008] Further, the elastic arm one is provided with a first contact surface, the elastic arm two is provided with a second contact surface, and the first contact surface and the second contact surface are used to abut against the pins inserted from the outside.

[0009] Further, there is an end portion between the elastic arm three and the elastic arm four, and clearance slopes one and two are formed on both sides of the end portion.

[0010] Further, the elastic arm three and the elastic arm four are provided with a convex contact surface one and a convex contact surface two that are in contact with the inner wall surface.

[0011] Further, the characteristic wall is inwardly riveted to prevent the inner conductor from falling off from the cavity three.

[0012] Further, a step one and a step two are formed between the cavity one, the cavity two and the cavity three, and the step one is used to limit the displacement of the inner conductor along the end face direction of the outer conductor.

[0013] Further, a slope for guiding the inner conductor into the cavity one is provided at the end of the end face.

[0014] Further, a press-fit structure one a and a press-fit structure two b for connecting a PCB board are annularly arranged outside the outer conductor.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: After the inner cavity of the outer conductor is elastically connected to the outwardly expanding elastic contact arm at one end of the inner conductor in the present invention, the end portion of the outer conductor is turned and riveted to fix the inner conductor. When in use, when the pin is inserted into the floating jack of the present invention, the rigid pin is elastically connected to the inner conductor, and the inner conductor is elastically connected to the outer conductor, realizing the floating function during work;

[0016] The floating jack terminal of the structure of the present invention can be widely terminated on a PCB board and applied to connectors that require acceptance of tolerances; the present invention has the advantages of simple and compact structure, high reliability, high cost efficiency and strong environmental adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural diagram of the outer conductor of the floating jack terminal of the present invention;

[0018] Figure 2 is a structural diagram of the inner conductor of the floating jack terminal of the present invention;

[0019] Figure 3 is a schematic diagram of the application structure principle of the floating jack terminal of the present invention;

[0020] Figure 4 is a connection diagram of the floating jack terminal of the present invention and a PCB board;

[0021] In the figure: 1. Outer conductor; 11. End face; 12. Cavity one; 121. Inclined surface; 13. Cavity two; 14. Cavity three; 141. Wall; 1411. Inner wall surface; 15a. Press - fit structure one; 15b. Press - fit structure two; 16. Step one; 17. Step two; 2. Inner conductor; 21. Annular wall; 22. Elastic arm one; 221. Contact surface one; 222. Guiding inclined surface one; 23. Elastic arm two; 231. Contact surface two; 232. Guiding inclined surface two; 24. Elastic arm three; 241. Convex contact surface one; 242. Clearance inclined surface one; 25. Elastic arm four; 251. Convex contact surface two; 252. Clearance inclined surface two; 26. End part; 27. Clearance one; 28. Clearance two; 3. PCB board; 4. Pin. Detailed implementation manners

[0022] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0023] Combined with the attached Figure 1 to the attached Figure 4 , a floating jack terminal structure is disclosed, and the specific structure is as follows:

[0024] The floating jack terminal structure of the present invention should be composed of two parts, an outer conductor 1 and an inner conductor 2, to form a floating jack structure. The floating jack terminal is press - fitted into the through - hole of the PCB board 3, and the pin 4 contacts and mates with the floating jack terminal to realize the reliable connection between the floating jack terminal of the present invention and the PCB board 3 and the pin 1, and carry the reliable transmission of current and signals.

[0025] The outer conductor 1 is of a cylindrical structure, and there are a cavity one 12, a cavity two 13, and a cavity three 14 inside it. One end of the outer conductor 1 is provided with the cavity one 12, and forms a step one 16 and a step two 17 with the cavity two 13 and the cavity three 14; the step one is used to limit the displacement of the inner conductor along the end - face direction of the outer conductor. The step two 17 is naturally formed due to the cavity one 12 and the cavity two 13, and has the function of protecting the guiding inclined surface one 222 and the guiding inclined surface two 232 of the inner conductor 2 from being damaged by the pin 4.

[0026] The end of the cavity one 12 and the end face 11 are provided with an inclined surface 121 structure to realize the guiding function of this design. The periphery of the cavity three 14 is provided with a wall 141 and an inner wall surface 1411. The outer side of the outer conductor 1 is provided with a press - fit structure one 15a and a press - fit structure two 15b for connection with the PCB board 3;

[0027] The inner conductor 2 is of an elastic structure. The inner conductor 2 includes an intermediate annular wall 21. One end of the annular wall 21 forms at least one pair or two pairs of inwardly contracting elastic arms one 22 and elastic arms two 23 through equidistant gaps two 28. The elastic arm one 22 is provided with a contact surface one 221, and the elastic arm two 23 is provided with a contact surface two 231;

[0028] The elastic arms one 22 and the elastic arms two 23 are in a contracted state towards the annular center; the other end of the annular wall 21 forms at least one pair or two pairs of outwardly expanding elastic arms three 24 and elastic arms four 25 through equidistant gaps one 27. The elastic arm three 24 is provided with a convex contact surface one 241, and the elastic arm four 25 is provided with a convex contact surface two 251. The elastic arms three 24 and the elastic arms four 25 are in an outwardly expanding state towards the annular outside; the elastic arms three 24 and the elastic arms four 25 and one end of the end portion 26 are provided with clearance inclined surfaces one 242 and clearance inclined surfaces two 252; The function is that after the elastic arms three and four of the inner conductor contract inwards, the space for receiving the pin 4 becomes smaller, and when the inner conductor is deflected, the pin 4 requires a larger space to receive its smooth passage.

[0029] The inner conductor 2 is assembled inside the cavity two 13 and the cavity three 14 of the outer conductor 1. The convex contact surface one 241 and the convex contact surface two 251 in the inner conductor 2 are in close contact with the inner side wall surface 1411 of the outer conductor 1, and the outer diameter of the intermediate annular wall 21 of the inner conductor 2 forms a clearance fit with the cavity two 13 of the outer conductor 1 with a smaller outer diameter than that of the outer conductor 1.

[0030] The characteristic wall 141 of the outer conductor 1 is inwardly riveted so that the inner conductor 2 cannot fall off from the cavity 14 of the outer conductor 1. The step one 16 restricts the displacement of the inner conductor 2 in the direction of the end portion 11, completing the assembly of the outer conductor 1 and the inner conductor 2 of the floating jack terminal structure assembly of the present invention.

[0031] The principle lies in that the convex contact surface one 241 and the convex contact surface two 251 in the inner conductor 2 are elastically connected to the side wall surface 1411 of the cavity of the outer conductor 1. When the pin 4 is eccentric with the floating jack terminal structure assembly of the present invention, the pin 4 is inserted into the floating jack terminal of the present invention. The pin 4 contacts the contact surface one 221 and the contact surface two 231 on one end of the elastic arm one 22 and the elastic arm two 23 of the inner conductor 2. The clearance fit between the cavity two 13 in the outer conductor 1 and the annular wall 21 of the inner conductor 2 can accommodate the deflection of the inner conductor 2. The elastic connection between the convex contact surface one 241 and the convex contact surface two 251 and the outer conductor side wall surface 1411, the elastic connection between the pin 4 and the inner conductor 2, and the elastic connection between the inner conductor 2 and the outer conductor 1. In summary, a reliable floating connection between the floating jack terminal structure of the present invention and the rigid pin is realized.

[0032] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A floating jack terminal structure, characterized in that, include: An outer conductor (1), the outer conductor (1) being a columnar structure, and being provided with a cavity 1 (12), a cavity 2 (13) and a cavity 3 (14) in sequence from top to bottom; the cavity 3 (14) being provided with a wall (141) and an inner wall surface (1411) on the outer side; An inner conductor (2), the inner conductor (2) comprising an intermediate annular wall (21), one end of the annular wall (21) being provided with an equidistant gap second (28), the gap second (28) forming at least one or two pairs of elastic arms one (22) and elastic arms two (23) contracting inwardly, the elastic arms one (22) and elastic arms two (23) being in a contracted state toward the center of the annular shape, the other end of the annular wall (21) being provided with an equidistant gap first (27), the gap first (27) forming at least one or two pairs of elastic arms three (24) and elastic arms four (25) expanding outwardly, the elastic arms three (24) and elastic arms four (25) being in an outwardly expanding state toward the outer side of the annular shape; The inner conductor (2) is assembled inside the second cavity (13) and the third cavity (14) of the outer conductor (1), the third elastic arm (24) and the fourth elastic arm (25) are in close contact with the inner wall surface (1411), and the outer diameter of the annular wall (21) is smaller than the outer diameter of the second cavity (13) to form a clearance fit; The elastic arm 1 (22) is provided with a contact surface 1 (221), and the elastic arm 2 (23) is provided with a contact surface 2 (231), and the contact surface 1 (221) and the contact surface 2 (231) are used to contact an externally inserted pin (4); An end portion (26) is provided between the elastic arm three (24) and the elastic arm four (25), and a first air avoidance inclined surface (242) and a second air avoidance inclined surface (252) are formed on both sides of the end portion (26).

2. The floating jack terminal structure according to claim 1, wherein The elastic arm three (24) and the elastic arm four (25) are provided with a convex contact surface one (241) and a convex contact surface two (251) that abut against the inner wall surface (1411).

3. The floating jack terminal structure according to claim 1, characterized in that, The wall (141) is riveted inwardly to abut against the inner conductor (2) to prevent it from falling out of the cavity three (14).

4. The floating jack terminal structure according to claim 1, wherein, The cavity one (12) and the cavity two (13) form a step one (16), and the cavity two (13) and the cavity three (14) form a step two (17). The step one (16) is used to limit the displacement of the inner conductor (2) along the end surface (11) of the outer conductor (1).

5. The floating jack terminal structure according to claim 4, characterized in that, An inclined surface (121) for guiding the inner conductor (2) into cavity one (12) is provided at the end of the end surface (11).

6. The floating jack terminal structure according to claim 1, characterized in that, The outer ring of the outer conductor (1) is provided with a first press-fit structure (15a) and a second press-fit structure (15b) for connecting to a PCB board.

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