CN221747503U - Fisheye terminal - Google Patents

Abstract

The utility model discloses a fish-eye terminal, which comprises a lead-out part, a lead-in tip and a fish-eye part arranged between the lead-out part and the lead-in tip, wherein the fish-eye part comprises elastic ribs which expand towards two sides respectively and an elastic web arranged between the two elastic ribs, and two sides of the elastic web are respectively recessed downwards at intervals in sequence and form at least two continuous hollow convex hulls with water waves on the section in the length direction of the elastic web; the plug force is increased through the convex hulls, the elastic webs are connected with the elastic ribs at the two ends, a certain supporting effect can be achieved on the elastic ribs and the convex hulls, meanwhile, the fish eye needle is ensured to be inserted and contacted stably and reliably, the fish eye needle is not easy to fall off, the fish eye terminal is inserted and can be tightly matched with the PCB plug hole, and welding-free plug connection is achieved.

Description

Fisheye terminal

Technical Field

The utility model relates to the technical field of connectors, in particular to a fish-eye terminal.

Background

In the field of industrial technology, in particular to the field of communication technology and the field of automobile manufacturing, fisheye terminals are widely applied to the field of communication connectors.

However, in the prior art, most of the fish-eye terminals are through-hole fish-eye needles, and specifically, the fish-eye portion thereof includes a through-hole and a pair of elastic arms located at both sides of the through-hole. The fish eye part is pressed into the plug hole of the PCB board to carry out electric lap joint. At this time, the pair of elastic arms are pressed by the inner wall of the plug hole to elastically deform towards the inner side of the plug hole, so that the fixing is realized. After long-time use, the elastic arm is easy to fatigue and deform to influence the installation stability of the fish-eye terminal, so that after the fish-eye terminal is inserted into the plug hole of the PCB, the traditional technology still needs to perform welding operation, and the fish-eye terminal is fixed on the PCB. In the welding process, the hidden danger of blank welding, virtual welding and weak welding exists; in addition, after the welding is finished, cleaning work is required; and the maintenance and the installation are difficult.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide a fish-eye terminal so as to solve the problems.

The aim of the utility model is realized by the following technical scheme:

The utility model provides a fish-eye terminal, includes derivation portion, introduces the pointed end and sets up the fish-eye portion between derivation portion and introducing the pointed end, the fish-eye portion includes the elastic rib that expands to both sides respectively and sets up the elastic web between two elastic ribs, the both sides of elastic web respectively interval undercut in proper order and form at least two continuous and the hollow convex closure that the cross-section is the ripple on the length direction of elastic web.

In the above summary, further, both ends of the convex hull are rounded to form the convex hull into a semi-ellipsoid shape with sealed ends and arranged in a hollow manner.

In the above summary, further, the height of the convex hull is smaller than the height of the elastic rib.

In the above summary, further, a limit portion is disposed at an end of the guiding portion near the fish eye portion, and a width of the limit portion is greater than a width of a joint of the two elastic ribs.

In the above summary, further, the corners of the upper and lower surfaces of the elastic rib are rounded by R.

The beneficial effects of the utility model are as follows:

The fish eye part is provided with a plurality of hollow and elastic convex hulls, the insertion and extraction force is increased through the convex hulls, the elastic web is connected with the elastic ribs at the two ends, a certain supporting effect can be achieved on the elastic ribs and the convex hulls, meanwhile, the stable and reliable insertion and contact of the fish eye needle are ensured, the fish eye needle is not easy to fall off, and the fish eye terminal can be tightly matched with the PCB board insertion hole after being inserted, so that welding-free insertion is realized; and the structure is simple and the production is easy.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a front cross-sectional view of the present utility model;

FIG. 4 is a cross-sectional view of A-A of FIG. 2;

FIG. 5 is another embodiment of the present utility model;

Fig. 6 is a front cross-sectional view of fig. 5.

In the figure, 1-leading-out part, 11-limit part, 2-leading-in tip, 3-fish eye part, 31-elastic rib, 32-elastic web, 33-convex hull.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

Referring to fig. 1-4, a fisheye terminal includes a guiding portion 1, a guiding tip 2, and a fisheye portion 3 disposed between the guiding portion 1 and the guiding tip 2, the fisheye portion 3 includes elastic ribs 31 that expand to two sides respectively, and an elastic web 32 disposed between the two elastic ribs 31, two ends of the two elastic ribs 31 are fixed and connected with the guiding portion 1 and the guiding tip 2 respectively, two sides of the elastic web 32 are respectively recessed downward at intervals in sequence and form at least two hollow convex hulls 33 with continuous cross sections in a water ripple shape along a length direction of the elastic web 32, and the elastic web 32 plays a certain supporting role on the convex hulls 33 and the elastic ribs 31 at two sides, so that the convex hulls 33 cannot be excessively compressed in a plugging process to generate deformation that cannot be recovered.

Specifically, the number of the convex hulls 33 may be 2, 3, 4 or 5, as shown in fig. 2-6, of course, more than 5 convex hulls 33 are still within the protection range of the embodiment, but after the test, at least two convex hulls 33 are disposed on the elastic web 32, and the plugging force formed by one convex hull 33 is smaller, so that the fisheye terminal cannot be tightly matched with the plugging hole (not shown in the drawings) of the PCB board, wherein preferably, 5 convex hulls 33 are disposed. The specific number of the convex hulls 33 can be tailored according to different thicknesses of the circuit board and the sizes of the plugging holes.

The greater the number of convex hulls 33, the shorter the length of each convex hull 33; conversely, the smaller the number of convex hulls 33, the longer the length of each convex hull 33, as shown in fig. 2 and 5.

Referring to fig. 2 and 3, both ends of the convex hull 33 are rounded so that the convex hull 33 is formed into a semi-elliptic shape with both ends sealed and arranged in a hollow manner. The plurality of convex hulls 33 are connected end to end in sequence on the elastic web 32, so that when the fish eye 3 is pressed into the insertion hole, the elastic deformation of the fish eye is firstly acted on the plurality of convex hulls 33.

Specifically, when the fisheye portion 3 is pressed into the jack, the convex hulls 33 on the fisheye portion 3 are deformed first, the width of the convex hulls 33 is narrowed in the extrusion process of the convex hulls 33, the deformation is acted on the tops of the convex hulls 33 and arc chamfers at two ends of the convex hulls 33, because two adjacent convex hulls 33 are recessed towards two sides of the elastic web 32 and in opposite directions, a certain deformation space is reserved at two ends of each convex hull 33, therefore, the arc chamfers can deform towards the reserved space at two ends of the convex hulls 33 when being extruded, the stress generated by elastic deformation is gradually increased from the beginning of the press mounting to the completion of the press mounting, after the press mounting is completed, the two elastic ribs 31 in the jack expand to two sides under the acting force of the convex hulls 33 and the elastic web 32 to restore to the original shape, the fisheye portion 3 is not easy to fall off in the jack, and can be in tight fit with the jack of the PCB board after being inserted, so that welding-free plug connection is realized. Meanwhile, the elastic web 32 plays a certain supporting role on the convex hull 33 and the elastic ribs 31 on two sides, so that deformation which cannot be restored due to excessive compression in the inserting process is avoided.

The overall height of the convex hull 33 is smaller than that of the elastic rib 31, and the convex hull is applicable to different types of PCB plugging holes.

In the above embodiment, preferably, as shown in fig. 2, one end of the guiding-out portion 1 near the fish-eye portion 3 is provided with a limiting portion 11, the width of the limiting portion 11 is greater than the width of the connecting portion of the two elastic ribs 31, the guiding-out portion 1 can be prevented from being excessively inserted into the PCB board insertion hole by the limiting portion 11, and one end of the limiting portion 11 near the fish-eye portion 3 adopts an R-shaped rounded corner structure, so that the limiting portion 11 is prevented from contacting the surface of the circuit board.

In the above embodiment, preferably, the corners of the upper and lower surfaces of the elastic rib 31 are rounded by R, so as to reduce the wear between the elastic rib 31 and the insertion hole.

The whole fisheye terminal and the convex hull 33 on the elastic web 32 are integrally stamped and formed by conductive metal plates, so that the manufacturing process is simple and the cost is saved.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (5)

1. The utility model provides a fish-eye terminal, includes derivation portion (1), introduces pointed end (2) and sets up fish-eye portion (3) between derivation portion (1) and introducing pointed end (2), its characterized in that, fish-eye portion (3) are including elastic rib (31) and the elastic web (32) of setting between two elastic rib (31) to both sides expansion respectively, the both sides of elastic web (32) interval respectively downwards and form hollow convex closure (33) that at least two continuous and cross-section are the ripple in proper order on the length direction of elastic web (32).

2. A fish-eye terminal according to claim 1, wherein both ends of the convex hull (33) are rounded so that the convex hull (33) is formed in a semi-elliptic shape with both ends sealed and arranged in a hollow.

3. A fish eye terminal according to claim 2, characterized in that the height of the convex hull (33) is smaller than the height of the elastic rib (31).

4. A fish-eye terminal according to claim 1, characterized in that one end of the lead-out part (1) near the fish-eye part (3) is provided with a limit part (11), and the width of the limit part (11) is larger than the width of the joint of the two elastic ribs (31).

5. A fish-eye terminal according to claim 1, wherein R rounded corners are used at the corners of the upper and lower surfaces of the elastic rib (31).