CN217215144U

CN217215144U - Floatable jack terminal structure

Info

Publication number: CN217215144U
Application number: CN202220805301.1U
Authority: CN
Inventors: 魏长权; 何仲祺; 沙奔
Original assignee: Suzhou Huayang Aerospace Electric Co Ltd
Current assignee: Suzhou Huayang Aerospace Electric Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-08-16
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a jack terminal structure that can float, include: the outer conductor is of a cylindrical structure and is sequentially 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 arranged outside the cavity III; the inner conductor comprises a middle annular wall, one end of the annular wall is provided with a second gap with equal distance, the second gap forms at least one pair or two pairs of first elastic arms and second elastic arms which contract inwards, the first elastic arms and the two-way annular center of the elastic arms form a contraction state, the other end of the annular wall is provided with a first gap with equal distance, the first gap forms at least one pair or two pairs of third elastic arms and fourth elastic arms which expand outwards, and the third elastic arms and the four-way annular outer sides of the elastic arms form an outward expansion state; the utility model has the advantages of compact structure, high reliability, high cost-effectiveness and strong environmental suitability.

Description

Floatable jack terminal structure

Technical Field

The utility model relates to a jack terminal structure that can float belongs to connector technical field.

Background

The connector is used as a main port for interconnection of equipment, and along with the development of technology and various requirements of equipment use scenes, more and more connectors need to be connected in a floating mode with tolerance. The connection on the present PCB board is mostly increasing the back panel connector on the PCB board, make the engineer of electromechanical structural design have to sacrifice more cubical space, or directly weld components and parts on the PCB board, lead to the change of later stage components and parts to maintain the degree of difficulty big and with high costs, a floatable jack terminal structure that this paper mentioned, will contain the utility model discloses floatable jack terminal direct pressure is joined in marriage on the through hole on the PCB board, components and parts disect insertion in the floatable jack terminal in the PCB board, the big difficult problem in occupation space of original inter-plate connector scheme has both been solved from this, also solved original direct later maintenance and change the difficult problem of components and parts with components and parts welding on the PCB board, more importantly solved electronic components and parts rigidity contact pin size deviation and need floatable jack terminal absorption tolerance's technological problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a jack terminal structure that can float to solve prior art electronic components rigidity contact pin size deviation and need the defect of jack terminal absorption tolerance that can float.

A floatable receptacle terminal structure comprising:

the outer conductor is of a cylindrical structure and is sequentially 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 arranged outside the cavity III;

the inner conductor comprises a middle annular wall, one end of the annular wall is provided with a second gap with equal distance, the second gap forms at least one pair or two pairs of first elastic arms and second elastic arms which contract inwards, the first elastic arms and the two-way annular center of the elastic arms form a contraction state, the other end of the annular wall is provided with a first gap with equal distance, the first gap forms at least one pair or two pairs of third elastic arms and fourth elastic arms which expand outwards, and the third elastic arms and the four-way annular outer sides of the elastic arms form an outward expansion state;

the inner conductor is assembled in the second cavity and the third cavity of the outer conductor, the third elastic arm and the fourth elastic arm are in close contact with the inner wall surface, and the outer diameter of the annular wall is smaller than that of the second cavity to form clearance fit.

Furthermore, the first elastic arm is provided with a first contact surface, the second elastic arm is provided with a second contact surface, and the first contact surface and the second contact surface are used for being abutted against an externally inserted contact pin.

Furthermore, an end part is arranged between the third elastic arm and the fourth elastic arm, and a first clearance inclined plane and a second clearance inclined plane are formed between the third elastic arm and the fourth elastic arm and the two sides of the end part.

Furthermore, the third elastic arm and the fourth elastic arm are provided with a first convex contact surface and a second convex contact surface which are abutted against the inner wall surface.

Further, the characteristic wall is turned inwards and riveted to abut against the inner conductor to fall off from the cavity III.

Furthermore, the first cavity, the second cavity and the third cavity form a first step and a second step, and the first step is used for limiting the displacement of the inner conductor along the end face direction of the outer conductor.

Further, the end part of the end face is provided with a slope used for guiding the inner conductor into the first cavity.

Furthermore, the outer ring of the outer conductor is provided with a first press-fit structure a and a second press-fit structure b for connecting the PCB.

Compared with the prior art, the utility model discloses the beneficial effect who reaches: after the utility model is provided with the elastic connection of the external expansion elastic contact arm at one end of the internal cavity of the external conductor and the internal conductor, one end part of the external conductor is turned over and riveted while being turned over to fix the internal conductor, when the floating jack is used and the contact pin is inserted into the floating jack of the utility model, the rigid contact pin is elastically connected with the internal conductor, and the internal conductor is elastically connected with the external conductor, thereby realizing the floating function during working;

the floatable jack terminal with the structure of the utility model can be widely terminated on a PCB and applied to a connector which needs to receive tolerance; the utility model has the advantages of compact structure, high reliability, high cost-effectiveness and strong environmental suitability.

Drawings

FIG. 1 is a schematic diagram of the outer conductor structure of the floatable jack terminal of the present invention;

fig. 2 is a structural diagram of the inner conductor of the floatable jack terminal of the present invention;

fig. 3 is a schematic diagram of the floating jack terminal application structure of the present invention;

fig. 4 is a connection diagram of the floatable jack terminal and the PCB of the present invention;

in the figure: 1. an outer conductor; 11. an end face; 12. a first cavity; 121. a bevel; 13. a second cavity; 14. a third cavity; 141. a wall; 1411. an inner wall surface; 15a, a first press-fit structure; 15b, a second press-fit structure; 16. a step I; 17. a step II; 2. an inner conductor; 21. an annular wall; 22. a first elastic arm; 221. a first contact surface; 222. a first guide inclined plane; 23. a second elastic arm; 231. a second contact surface; 232. a second guide inclined plane; 24. a third elastic arm; 241. a first convex contact surface; 242. a first clearance inclined plane; 25. a fourth elastic arm; 251. a convex contact surface II; 252. a second clearance inclined plane; 26. an end portion; 27. a first gap; 28. a second gap; 3. a PCB board; 4. and (6) inserting pins.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

With reference to the accompanying drawings 1 to 4, a floatable jack terminal structure is disclosed, and the specific structure is as follows:

the utility model discloses jack terminal structure that can float should be by outer conductor 1, two parts of inner conductor 2 make up into floating jack structure, and jack terminal that can float is pressed and is joined in marriage in 3 through holes of PCB board, and contact pin 4 and jack terminal contact that can float are mutually joined in marriage, realize this utility model jack terminal that can float and PCB board 3, contact pin 1 reliable connection, bear the reliable transmission of electric current and signal.

The outer conductor 1 is of a cylindrical structure, a first cavity 12, a second cavity 13 and a third cavity 14 are arranged in the outer conductor 1, the first cavity 12 is arranged at one end of the outer conductor 1, and a first step 16 and a second step 17 are formed by the first cavity 12, the second cavity 13 and the third cavity 14; the first step is used for limiting the displacement of the inner conductor along the end face direction of the outer conductor, and the second step 17 is naturally formed by the first cavity 12 and the second cavity 13, so that the first guide inclined surface 222 and the second guide inclined surface 232 of the inner conductor 2 are protected from being damaged by the contact pin 4.

The end parts of the first cavity 12 and the end surface 11 are provided with inclined surfaces 121 to realize the guide function of the design, the periphery of the third cavity 14 is provided with a wall 141 and an inner wall surface 1411, and the outer side of the outer conductor 1 is provided with a first press-fit structure 15a and a second press-fit structure 15b for connecting with a PCB 3;

the inner conductor 2 is an elastic structure, the inner conductor 2 comprises a middle annular wall 21, one end of the annular wall 21 forms at least one pair or two pairs of inwards contracted elastic arms I22 and elastic arms II 23 through a gap II 28 with equal distance, the elastic arms I22 are provided with a contact surface I221, and the elastic arms II 23 are provided with a contact surface II 231;

the first elastic arm 22 and the second elastic arm 23 form a contraction state towards the annular center; the other end of the annular wall 21 is provided with at least one pair or two pairs of outwards expanded elastic arms III 24 and elastic arms IV 25 through a first gap 27 with equal distance, the elastic arms III 24 are provided with a first convex contact surface 241, the elastic arms IV 25 are provided with a second convex contact surface 251, and the elastic arms III 24 and the elastic arms IV 25 are in an outwards expanded state towards the annular outer side; one end of the elastic arm III 24, the elastic arm IV 25 and the end part 26 is provided with a first clearance inclined plane 242 and a second clearance inclined plane 252; the function is as follows: the space for receiving the pin 4 becomes smaller after the spring arms of the inner conductor are retracted in three and four directions, and the pin 4 needs more space to receive it smoothly when the inner conductor is deflected.

The inner conductor 2 is assembled in the cavity II 13 and the cavity III 14 of the outer conductor 1, the convex contact surface I241 and the convex contact surface II 251 in the inner conductor 2 are in close contact with the inner side wall surface 1411 of the outer conductor 1, and the cavity II 13, of which the outer diameter of the middle annular wall 21 of the inner conductor 2 is smaller than that of the outer conductor 1, forms clearance fit.

The wall 141 of outer conductor 1 is inwards turned over and is riveted, makes its inner conductor 2 can not drop from three 14 of the cavity of outer conductor 1, and step 16 limits the displacement of inner conductor 2 to 11 directions of tip, accomplishes the utility model discloses the assembly of outer conductor 1 and inner conductor 2 of jack terminal structure closes the piece that can float.

Its principle lies in, convex contact surface 241 and two 251 in the inner conductor 2 and the cavity lateral wall surface 1411 elastic connection of outer conductor 1, when contact pin 4 with the utility model discloses when the jack terminal structure that can float closes piece off-centre, contact pin 4 inserts the utility model discloses in the jack terminal that floats, contact pin 4 and the one end elastic arm 22 of inner conductor 2 and the contact surface 221 on the elastic arm two 23 contact with contact surface two 231 contact, cavity two 13 in the outer conductor 1 and the clearance fit of the annular wall 21 of inner conductor 2 can accept the incline of inner conductor 2, convex contact surface 241 and convex contact surface two 251 and outer conductor lateral wall surface 1411's elastic connection, contact pin 4 and inner conductor 2 elastic connection, inner conductor 2 and outer conductor 1 elastic connection, to sum up, realize the utility model discloses jack terminal structure that can float is connected with the reliable unsteady of rigidity needle.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A floatable jack terminal structure comprising:

the outer conductor (1) is of a cylindrical structure and is sequentially provided with a first cavity (12), a second cavity (13) and a third cavity (14) from top to bottom; a wall (141) and an inner wall surface (1411) are arranged on the outer side of the cavity III (14);

the inner conductor (2) comprises a middle annular wall (21), one end of the annular wall (21) is provided with a second equidistant gap (28), the second gap (28) forms at least one pair or two pairs of first inwards contracted elastic arms (22) and second inwards contracted elastic arms (23), the first elastic arms (22) and the second elastic arms (23) form a contracted state towards the annular center, the other end of the annular wall (21) is provided with a first equidistant gap (27), the first gap (27) forms at least one pair or two pairs of third outwards expanded elastic arms (24) and fourth elastic arms (25), and the third elastic arms (24) and the fourth elastic arms (25) form an outwards expanded state towards the annular outer side;

the inner conductor (2) is assembled in the cavity II (13) and the cavity III (14) of the outer conductor (1), the elastic arm III (24) and the elastic arm IV (25) are in close contact with the inner wall surface (1411), and the outer diameter of the annular wall (21) is smaller than that of the cavity II (13) to form clearance fit.

2. Floatable jack terminal structure according to claim 1, characterized in that said first resilient arm (22) is provided with a first contact surface (221) and said second resilient arm (23) is provided with a second contact surface (231), said first contact surface (221) and said second contact surface (231) being adapted to contact an externally inserted pin (4).

3. The floatable jack terminal structure of claim 1, wherein an end portion (26) is provided between said third resilient arm (24) and said fourth resilient arm (25), and a first clearance bevel (242) and a second clearance bevel (252) are formed with both sides of the end portion (26).

4. The floatable jack terminal structure of claim 1, wherein said third and fourth resilient arms (24, 25) are provided with a first convex contact surface (241) and a second convex contact surface (251) that interfere with the inner wall surface (1411).

5. The floatable jack terminal structure of claim 1, characterized in that said wall (141) is clinched inwardly for resisting removal of the inner conductor (2) from within the cavity three (14).

6. The floatable jack terminal structure of claim 1, characterized in that the cavity one (12) forms a step one (16) and a step two (17) with the cavity two (13) and the cavity three (14), the step one (16) being used for limiting the displacement of the inner conductor (2) along the direction of the end face (11) of the outer conductor (1).

7. Floatable jack terminal structure according to claim 6, characterized in that the end of the end face (11) is provided with a bevel (121) for guiding the inner conductor (2) into the cavity one (12).

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