CN219226661U

CN219226661U - Fisheye terminal and fisheye terminal PCB assembly

Info

Publication number: CN219226661U
Application number: CN202223440276.0U
Authority: CN
Inventors: 吴晓峰; 谢国良
Original assignee: Dongguan Fujin Precision Components Co ltd
Current assignee: Dongguan Fujin Precision Components Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-06-20
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a fish-eye terminal and a fish-eye terminal PCB assembly, which comprise an integrally formed plug-in part, a fish-eye part, a connecting part and a mounting part which are sequentially connected; the fish eye part comprises a pair of elastic arms arranged on two opposite sides; the lower end of the second connecting part is connected with the upper end of the mounting part; the second connecting part is provided with a positioning groove, a first limit convex part and a second limit convex part, wherein the positioning groove, the first limit convex part and the second limit convex part are used for preventing the fisheye terminal from loosening when the fisheye terminal is inserted into the insulating body; the upper ends of the first limit convex part and the second limit convex part are respectively connected to the lower ends of the positioning grooves; the pair of elastic arms are extruded and deformed to achieve tight fit when being inserted into the conductive jack through the structural design of the fish-eye terminal; and the problem that the fisheye terminal and the insulating body are easy to loosen and influence the normal use of the product in the traditional technology is effectively solved.

Description

Fisheye terminal and fisheye terminal PCB assembly

Technical Field

The utility model relates to the technical field of fish-eye terminals, in particular to a fish-eye terminal and a fish-eye terminal PCB assembly.

Background

The communication connector is often connected with a circuit board in three connection modes, namely, straight pin through hole welding, fisheye terminal perforation crimping and flat pin flatly attached to the surface of the PCB. The scheme of punching and crimping the fisheye terminal is most widely applied, and is increasingly applied to the field of automobile connectors, because the fisheye terminal has great technical advantages. The first is welding-free, so that the cost is lower, and the method accords with the social trend of energy conservation and environmental protection. Secondly, the bonding pad design is not needed, more terminals can be arranged on the same occupied board area, and the design requirement of the current product on high density is met. Thirdly, the fish eye terminal can be easily pulled out, and the maintenance is convenient.

In the prior art, along with development of automobile electronic technology, stability requirements of fisheye terminals for connecting a Printed Circuit Board (PCB) and an insulating body end are gradually improved, reliability of the fisheye terminals directly determines safety characteristics of the whole automobile, when the fisheye terminals are pressed and assembled by the connector for application of automobile part modules, the fisheye terminals are possibly forced and retracted due to insufficient supporting space, namely complete contact performance between the fisheye terminals and the PCB after the press and assembly is not guaranteed, and further, the problem of electrical property failure caused by poor contact between the fisheye terminals and the PCB is solved.

A fisheye terminal, for example CN209981515U, has appeared in the market, and includes an elastic portion provided in a fusiform flat structure, a pin portion fixedly provided at one end of the elastic portion, a base portion fixedly provided at one end of the elastic portion far from the pin portion, and a shoulder portion fixedly provided at a junction of the base portion and the elastic portion; the middle part of the elastic part is provided with a fish eye hole, the hole wall of the fish eye hole is provided with a plurality of inward concave arc grooves, tooth-shaped bulges are formed between two adjacent arc grooves, the hole wall of the fish eye hole is provided with the inward concave arc grooves, so that the fish eye terminal is easy in the plugging process, the fish eye terminal can be well connected with the conductive jack after being inserted and can not be easily separated from the conductive jack, the matching connection of the fish eye terminal and the conductive jack of the PCB is firmer, and the signal transmission is more reliable, the service life is longer, and the problem that the normal use of the connector is affected because the problem that the fisheye terminal is easy to loosen in the use process of the connector existing in products on the market is solved by the scheme, but the base and the insulating body are connected through the flat smooth surface due to the structural reasons of the base, so that the combination strength between the fisheye terminal and the insulating body is poor in use, and the fisheye terminal and the insulating body are easy to loosen, so that the normal use of the product is affected.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

In view of the above, the present utility model addresses the drawbacks of the prior art, and it is a primary object of the present utility model to provide a fisheye terminal and a fisheye terminal PCB assembly, which is configured by the fisheye terminal, wherein the pair of elastic arms are pressed and deformed to achieve close fit when being inserted into the conductive socket; ensuring that the fisheye terminal is well connected with the conductive jack after being inserted and cannot easily deviate from the conductive jack, so that the fisheye terminal is more firmly matched and connected with the conductive jack of the PCB and more reliable in signal transmission, and the second connecting part is provided with a positioning groove, a first limiting convex part and a second limiting convex part, wherein the positioning groove, the first limiting convex part and the second limiting convex part are used for preventing the fisheye terminal from loosening when the fisheye terminal is inserted into the insulating body; the novel fish-eye terminal can effectively prevent the phenomenon that the fish-eye terminal is loosened in the use process of the fish-eye terminal and the insulating body.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a fish-eye terminal comprises an integrally formed plug-in part, a fish-eye part, a connecting part and a mounting part which are sequentially connected; the fish eye part comprises a pair of elastic arms which are arranged on two opposite sides and enclose a fish eye hole between the inner wall surfaces which face each other;

the connecting part comprises a first connecting part and a second connecting part, the upper end of the second connecting part is connected with the lower end of the first connecting part, and the lower end of the second connecting part is connected with the upper end of the mounting part; the second connecting part is provided with a positioning groove, a first limit convex part and a second limit convex part, wherein the positioning groove, the first limit convex part and the second limit convex part are used for preventing the fisheye terminal from loosening when the fisheye terminal is inserted into the insulating body; the upper ends of the first limit convex part and the second limit convex part are respectively connected to the lower ends of the positioning grooves.

As a preferable scheme, the first limit convex part extends to the left along the lower end of the positioning groove and the upper end face of the first limit convex part is flush with the lower end face of the positioning groove, correspondingly, the second limit convex part extends to the right along the lower end of the positioning groove and is flush with the lower end face of the positioning groove.

As a preferable mode, the lower end of the first limit protrusion is connected to the upper end of the mounting portion.

As a preferable mode, the area of the second limit protrusion is larger than that of the first limit protrusion.

As a preferable scheme, the first limit convex part extends to the right along the lower end of the positioning groove and the upper end face of the first limit convex part is flush with the lower end face of the positioning groove, correspondingly, the second limit convex part extends to the left along the lower end of the positioning groove and is flush with the lower end face of the positioning groove.

As a preferable scheme, the plugging part is provided with a first conical part with a small upper part and a large lower part, and the mounting part is provided with a second conical part with a large upper part and a small lower part, so that the plugging part is convenient for subsequent adaptive plugging.

As a preferable mode, the pair of elastic arms are a first elastic arm and a second elastic arm, the upper ends of the first elastic arm and the second elastic arm are connected to the lower end of the plugging portion, and the lower ends of the first elastic arm and the second elastic arm are connected to the upper end of the connecting portion.

As a preferable mode, the first elastic arm is in a shape of a circular arc which is arched forward, and the second elastic arm is in a shape of a circular arc which is arched backward.

The utility model provides a fish-eye terminal PCB subassembly, includes PCB board and insulator and peg graft a plurality of fish-eye terminals on PCB board and insulator, be provided with the conductive jack that a plurality of intervals set up on the PCB board, conductive jack link up PCB board upper and lower side, fish-eye terminal peg graft in conductive jack in order to fix and set up on the PCB board, fish-eye terminal is above-mentioned a fish-eye terminal; the inserting part is inserted into the conductive jack and is exposed above the PCB, and the first elastic arm and the second elastic arm are extruded and deformed to achieve tight fit when being inserted into the conductive jack; the connecting part is exposed below the PCB.

As a preferred scheme, be provided with respectively on the insulator with the spacing convex part of the spacing convex part looks adaptation of positioning groove, first spacing recess and second spacing recess, when the fisheye terminal inserts in the insulator, the positioning convex part is located positioning groove, first spacing convex part and the spacing convex part of second are located first spacing recess and the spacing recess of second respectively.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical proposal can be known that the pair of elastic arms are tightly matched by extrusion deformation when being inserted into the conductive jack mainly through the structural design of the fish-eye terminal; ensuring that the fisheye terminal is well connected with the conductive jack after being inserted and cannot easily deviate from the conductive jack, so that the fisheye terminal is more firmly matched and connected with the conductive jack of the PCB and more reliable in signal transmission, and the second connecting part is provided with a positioning groove, a first limit convex part and a second limit convex part for preventing the fisheye terminal from loosening when the fisheye terminal is inserted into the insulating body; the novel fish-eye terminal can effectively prevent the phenomenon that the fish-eye terminal and the insulating body are loosened in the use process, and effectively solves the problem that the fish-eye terminal and the insulating body are easy to loosen and influence the normal use of products in the traditional technology when the fish-eye terminal is used.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a structural view of a first embodiment of the present utility model;

FIG. 2 is a front view (application diagram) of a first embodiment of the present utility model;

FIG. 3 is a cross-sectional view (application diagram) of a first embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a structural diagram of a second embodiment of the present utility model;

FIG. 6 is a front view (application view) of a second embodiment of the present utility model;

fig. 7 is a cross-sectional view (application diagram) of a second embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. plug-in portion 11, first taper portion

20. Fish eye 21, elastic arm

211. First elastic arm 212, second elastic arm

30. Connection portion 31, first connection portion

32. Second connecting portion 321 and positioning groove

322. First and

second limit protrusions

323 and 323

40. Mounting portion 41, second taper portion

50. PCB 60, insulating body

70. Fisheye terminal 61 and positioning convex part

62. The first limit groove 63 and the second limit groove.

Detailed Description

Referring to fig. 1 to 7, specific structures of various embodiments of the present utility model are shown.

In the description of the present utility model, it should be noted that, for the azimuth words, terms such as "upper", "lower", "front", "rear", "left", "right", etc., indicate azimuth and positional relationships as shown based on the drawings or when worn normally, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the device or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

A fish-eye terminal comprises a plug-in part 10, a fish-eye part 20, a connecting part 30 and a mounting part 40.

The insertion part 10, the fish eye part 20, the connecting part 30 and the mounting part 40 are integrally formed and connected in sequence. The insertion part 10 is provided with a first conical part 11 with a small upper part and a big lower part, the fish eye part 20 comprises a pair of elastic arms 21 which are arranged on two opposite sides and enclose a fish eye hole between the inner wall surfaces which face each other; the mounting portion 40 has a second taper portion 41 with a large upper portion and a small lower portion, so that subsequent adapting and plugging are facilitated. The fisheye terminal 70 is wide in the middle and narrow in the two ends, the contraction elasticity of the fisheye terminal 70 can be increased through the arrangement, different positions of the oppositely arranged elastic arms 21 are provided with different cross sections, and further the contraction performance of the different positions is different, so that the use is more convenient and labor-saving, the fisheye terminal 70 can be ensured to be easier to insert, the fisheye terminal 70 can be ensured to be well connected with the conductive jack of the PCB 50 after being inserted, and the fisheye terminal 70 cannot be easily separated from the conductive jack, so that the fisheye terminal is more firmly matched and connected with the conductive jack of the PCB 50, and the signal transmission is more reliable.

The pair of elastic arms 21 are a first elastic arm 211 and a second elastic arm 212, the upper ends of the first elastic arm 211 and the second elastic arm 212 are connected to the lower end of the plugging portion 10, and the lower ends of the first elastic arm 211 and the second elastic arm 212 are connected to the upper end of the connecting portion. Preferably, the first elastic arm 211 has a circular arc shape that arches forward, and the second elastic arm 212 has a circular arc shape that arches backward.

The connecting part 30 comprises a first connecting part 31 and a second connecting part 32, wherein the upper end of the second connecting part 32 is connected with the lower end of the first connecting part 31, and the lower end of the second connecting part 32 is connected with the upper end of the mounting part 40; the second connection part 32 has a positioning groove 321, a first limit protrusion 322, and a second limit protrusion 323 for preventing the fisheye terminal 70 from being loosened when the fisheye terminal 70 is inserted into the insulation body 60; the upper ends of the first limit protrusion 322 and the second limit protrusion 323 are respectively connected to the lower end of the positioning groove 321. The lower end of the first limit protrusion 322 is connected to the upper end of the mounting portion 40. The second limit protrusion 323 has an area larger than that of the first limit protrusion 322. The first limiting protrusion 322 extends to the left along the lower end of the positioning groove 321 and the upper end face thereof is flush with the lower end face of the positioning groove 321, correspondingly, the second limiting protrusion 323 extends to the right along the lower end of the positioning groove 321 and is flush with the lower end face of the positioning groove 321.

The first limiting protrusion 322 extends to the right along the lower end of the positioning groove 321, and the upper end face of the first limiting protrusion is flush with the lower end face of the positioning groove 321, correspondingly, the second limiting protrusion 323 extends to the left along the lower end of the positioning groove 321, and is flush with the lower end face of the positioning groove 321.

A fish-eye terminal PCB assembly comprises a PCB 50, an insulating body 60 and a plurality of fish-eye terminals 70 which are inserted into the PCB 50 and the insulating body 60.

The PCB 50 is provided with a plurality of conductive jacks arranged at intervals, the conductive jacks penetrate through the upper side and the lower side of the PCB 50, the fisheye terminal 70 is inserted into the conductive jacks to be fixedly arranged on the PCB 50, and the fisheye terminal 70 is a fisheye terminal 70; the plugging portion 10 is plugged into the conductive jack and is exposed above the PCB 50, and the first elastic arm 211 and the second elastic arm 212 are deformed by extrusion to achieve tight fit when being plugged into the conductive jack; the connection portion is exposed below the PCB 50.

The insulation body 60 is provided with a positioning convex portion 61, a first limiting concave portion 62 and a second limiting concave portion 63 which are matched with the positioning concave portion 321, the first limiting convex portion 322 and the second limiting convex portion 323 respectively, when the fisheye terminal 70 is inserted into the insulation body 60, the positioning convex portion 61 is located in the positioning concave portion 321, and the first limiting convex portion 322 and the second limiting convex portion 323 are located in the first limiting concave portion 62 and the second limiting concave portion 63 respectively. The second tapered portions 41 extend out of the insulating body 60.

The design of the utility model is mainly based on the structural design of the fish-eye terminal, and the pair of elastic arms are extruded and deformed to achieve close fit when being inserted into the conductive jack; ensuring that the fisheye terminal is well connected with the conductive jack after being inserted and cannot easily deviate from the conductive jack, so that the fisheye terminal is more firmly matched and connected with the conductive jack of the PCB and more reliable in signal transmission, and the second connecting part is provided with a positioning groove, a first limit convex part and a second limit convex part for preventing the fisheye terminal from loosening when the fisheye terminal is inserted into the insulating body; the novel fish-eye terminal can effectively prevent the phenomenon that the fish-eye terminal and the insulating body are loosened in the use process, and effectively solves the problem that the fish-eye terminal and the insulating body are easy to loosen and influence the normal use of products in the traditional technology when the fish-eye terminal is used.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. A fish-eye terminal comprises an integrally formed plug-in part, a fish-eye part, a connecting part and a mounting part which are sequentially connected; the fish eye part comprises a pair of elastic arms which are arranged on two opposite sides and enclose a fish eye hole between the inner wall surfaces which face each other; the method is characterized in that:

2. A fish eye terminal as claimed in claim 1, wherein: the lower end of the first limiting convex part along the positioning groove extends leftwards integrally and the upper end face of the first limiting convex part is flush with the lower end face of the positioning groove, and correspondingly, the lower end of the second limiting convex part along the positioning groove extends rightwards integrally and is flush with the lower end face of the positioning groove.

3. A fish eye terminal as claimed in claim 1, wherein: the lower end of the first limit protruding part is connected to the upper end of the mounting part.

4. A fish eye terminal as claimed in claim 2, wherein: the area of the second limit convex part is larger than that of the first limit convex part.

5. A fish eye terminal as claimed in claim 1, wherein: the lower end of the first limiting convex part along the positioning groove extends to the right integrally and the upper end face of the first limiting convex part is flush with the lower end face of the positioning groove, and correspondingly, the lower end of the second limiting convex part along the positioning groove extends to the left integrally and is flush with the lower end face of the positioning groove.

6. A fish eye terminal as claimed in claim 1, wherein: the plug-in part is provided with a first conical part with a small upper part and a large lower part, and the mounting part is provided with a second conical part with a large upper part and a small lower part.

7. A fish eye terminal as defined in claim 6, wherein: the pair of elastic arms are a first elastic arm and a second elastic arm, the upper ends of the first elastic arm and the second elastic arm are connected to the lower end of the plug-in connection part, and the lower ends of the first elastic arm and the second elastic arm are connected to the upper end of the connection part.

8. A fish eye terminal as defined in claim 7, wherein: the first elastic arm is in a forward arched arc shape, and the second elastic arm is in a backward arched arc shape.

9. A fish eye terminal PCB subassembly, its characterized in that: the novel fish-eye terminal comprises a PCB, an insulating body and a plurality of fish-eye terminals inserted on the PCB and the insulating body, wherein the PCB is provided with a plurality of conductive jacks arranged at intervals, the conductive jacks penetrate through the upper side and the lower side of the PCB, the fish-eye terminals are inserted in the conductive jacks to be fixedly arranged on the PCB, and the fish-eye terminals are one of the fish-eye terminals according to any one of claims 1 to 8; the inserting part is inserted into the conductive jack and is exposed above the PCB, and the first elastic arm and the second elastic arm are extruded and deformed to achieve tight fit when being inserted into the conductive jack; the connecting part is exposed below the PCB.

10. The fish eye terminal PCB assembly of claim 9, wherein: the fish-eye terminal is characterized in that a positioning convex part, a first limiting groove and a second limiting groove which are matched with the positioning groove, the first limiting convex part and the second limiting convex part are respectively arranged on the insulating body, when the fish-eye terminal is inserted into the insulating body, the positioning convex part is positioned in the positioning groove, and the first limiting convex part and the second limiting convex part are respectively positioned in the first limiting groove and the second limiting groove.