CN217983741U

CN217983741U - Fisheye terminal with deformable multi-support-arm structure and electric connector

Info

Publication number: CN217983741U
Application number: CN202221069139.8U
Authority: CN
Inventors: 李鑫; 钱正军
Original assignee: Shanghai Tiantan Electronic Technology Co ltd
Current assignee: Shanghai Tiantan Electronic Technology Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-12-06
Anticipated expiration: 2032-04-26

Abstract

The embodiment of the utility model provides a fisheye terminal and electric connector with many support arm structures of flexible 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; the elastic structure, the top of elastic structure with guide structure connects, the elastic structure is including first elastic arm and the second elastic arm that the symmetry set up, first elastic arm with the both ends interconnect of second elastic arm, first elastic arm with be equipped with a plurality of elastic support arms between the second elastic arm. The utility model provides a pair of fisheye terminal and electric connector with many support arm structures of flexible through setting up a plurality of elastic support arms, has increased the holding power of first elastic arm and second elastic arm and PCB diaphragm inner wall laminating butt for under the condition of rocking or vibrating of automobile body, prevent to produce contact failure between fisheye terminal and the PCB board.

Description

Fisheye terminal with deformable multi-support-arm structure and electric connector

Technical Field

The utility model relates to a connector field specifically relates to a fisheye terminal and electric connector with many support arm structures of flexible.

Background

Fisheye terminals are commonly used on the market to address the insertion of a single PIN into a PCB board hole, thereby electrically connecting the electronic connector with the circuit board. One end of the fisheye terminal is inserted into a PCB hole of a circuit board, so that the fisheye terminal can generate quite stable contact impedance with the circuit board. Particularly, in the connector for the vehicle, since the vehicle is likely to shake or vibrate due to the unevenness of the road surface in the traveling process of the vehicle, if the contact effect between the fisheye terminal and the circuit board is not good, the short circuit of the electric appliance is likely to be caused, and the driving safety is affected.

The one end of present fisheye terminal is mainly inserted in the PCB diaphragm orifice of circuit board with the fisheye terminal, makes it produce and warp, and then reaches inseparable joint with the PCB diaphragm orifice, but traditional fisheye terminal is inserting the installation after accomplishing, and the rocking or the vibration in-process of automobile body can lead to the elastic force of fisheye terminal to be stable inadequately, and the holding power is not high enough, leads to the contact effect between fisheye terminal and the circuit board not good for the signal of telecommunication transmission effect of fisheye terminal descends.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a fisheye terminal and electric connector with many support arm structures of flexible solves current fisheye terminal elastic force and stabilizes inadequately, the not high enough problem of holding power.

In order to achieve the above object, an embodiment of the present invention provides a fisheye terminal with a deformable multi-arm structure, the fisheye terminal includes:

the guide structure is used for guiding the fisheye terminal to be plugged with a hole of the PCB;

elastic construction, elastic construction's top with guide structure connects, elastic construction includes first elastic arm and the second elastic arm that the symmetry set up, first elastic arm with the both ends interconnect of second elastic arm, first elastic arm with be equipped with a plurality of elastic support arms between the second elastic arm, it is a plurality of elastic support arm with first elastic arm with the biggest central line in the minor axis direction between the second elastic arm sets up for the axial symmetry.

Optionally, the thicknesses of the elastic support arms are both less than or equal to the thicknesses of the first elastic arm and the second elastic arm.

Optionally, when the number of the elastic support arms is odd, the maximum central line is used as one elastic support arm, and the rest of the elastic support arms are symmetrically arranged with the elastic support arm on the maximum central line.

Optionally, when the number of the elastic support arms is even, the elastic support arms are symmetrically arranged by taking the maximum central line as an axis.

Optionally, the head ends of the plurality of elastic support arms are connected to the inner side of the first elastic arm, and the tail ends of the plurality of elastic support arms are connected to the inner side of the second elastic arm.

Optionally, the elastic support arm above the maximum center line is bent upwards to form an arc shape, and the elastic support arm below the maximum center line is bent downwards to form an arc shape, so that the elastic support arms are symmetrically arranged with the maximum center line as an axis.

Optionally, the material of the resilient mounting arm comprises copper.

Optionally, the fisheye terminal further includes a base, and the bottom end of the first elastic arm and the bottom end of the second 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 many support arm structures of flexible, through set up a plurality of elastic support arms between first elastic arm and second elastic arm, a plurality of elastic support arm symmetries set up, the holding power of first elastic arm and second elastic arm and PCB diaphragm inner wall laminating butt has been increased, the symmetry sets up and makes holding power distribute evenly, make under the condition of rocking or vibrating at the automobile body, fisheye terminal can provide stable holding power, prevent to produce contact failure between fisheye terminal and the PCB board, realize low contact resistance, satisfy the demand of system to holding power intensity.

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 of the invention, but do not constitute a limitation of the embodiments of the invention. In the drawings:

fig. 1 is a perspective view of a fisheye terminal provided with a deformable multi-arm structure according to an embodiment of the invention;

fig. 2 is a front view of an even number of resilient arms according to an embodiment of the present invention;

FIG. 3 is a front view of an odd number of resilient arms according to one embodiment of the present invention;

fig. 4 is a cross-sectional view of a resilient mounting arm having a thickness equal to the thickness of the first and second resilient arms, according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a resilient mounting arm having a thickness less than the thickness of the first and second resilient arms, according to an embodiment of the present invention.

Description of the reference numerals

1. Guide structure 2, elastic structure

3. Base 21, first elastic arm

22. Second elastic arm 23, elastic support arm

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 deformable multi-arm structure, including: the guide structure 1 is used for guiding the fisheye terminal to be inserted into a hole of the PCB; elastic structure 2, elastic structure 2's top is connected with guide structure 1, and elastic structure 2 is including first elastic arm 21 and the second elastic arm 22 that the symmetry set up, the both ends interconnect of first elastic arm 21 and second elastic arm 22, is equipped with a plurality of elastic support arms 23 between first elastic arm 21 and the second elastic arm 22, and a plurality of elastic support arms 23 use the biggest central line in the minor axis direction between first elastic arm 21 and the second elastic arm 22 to set up as the axial symmetry.

In this embodiment, based on the above structural design, the working principle of the fisheye terminal provided with the deformable multi-arm structure of this embodiment is as follows:

guide structure 1 is used for leading to the fisheye terminal, make the fisheye terminal can insert the PCB diaphragm orifice in advance, in the in-process of inserting the PCB board, guide structure 1 inserts in advance in the PCB board, elastic structure 2 inserts in the PCB board immediately, first elastic arm 21 and second elastic arm 22 in the elastic structure 2 receive the extrusion of PCB diaphragm orifice inner wall and begin to produce elastic deformation, the elastic force of first elastic arm 21 and second elastic arm 22 constantly increases, a plurality of elastic support arms 23 receive the extruded influence also to produce elastic deformation, make the holding power of first elastic arm 21 and second elastic arm 22 and PCB diaphragm orifice inner wall constantly increase, continue to insert until first elastic arm 21 and second elastic arm 22 thoroughly get into the PCB board, elastic support arm 23 produces stable elastic force to both ends, the reverse elastic force in the outside of first elastic arm 21 and second elastic arm 22 reaches the biggest, make and produce stable holding power with the inner wall laminating butt of PCB diaphragm orifice, form the connector and transmit electrical signal tightly.

In this embodiment, the two ends of the same side of the first elastic arm 21 and the second elastic arm 22 are connected to each other to form a joint end, and the bottom end of the guide structure 1 is matched with the cross section of the joint end at the top, so that the bottom end of the guide structure is attached to the joint end at the top, and the first elastic arm 21 and the second elastic arm 22 are guided to deform and be inserted into a hole of the PCB board.

In this embodiment, a fisheye hole is formed between the first elastic arm 21 and the second elastic arm 22, a plurality of elastic support arms 23 are arranged in the fisheye hole, the elastic support arms 23, the first elastic arm 21 and the second elastic arm 22 are integrally formed and are made of a conductive metal material, the first elastic arm 21 and the second elastic arm 22 are extruded by the inner wall of the hole of the PCB to deform, so that the maximum width of the fisheye hole is continuously reduced, the elastic support arms 23 deform by the extrusion force from the first elastic arm 21 and the second elastic arm 22 to the central position, and generate a reverse acting force to the first elastic arm 21 and the second elastic arm 22, so that the holding force between the first elastic arm 21 and the inner wall of the hole of the PCB is increased, and under the condition of shaking or vibration of the vehicle body, the first elastic arm 21 and the second elastic arm 22 are prevented from generating poor contact with the inner wall of the hole of the PCB.

Further, referring to fig. 4 and 5, the thickness of the elastic arm 23 is less than or equal to the thickness of the first elastic arm 21 and the second elastic arm 22. Specifically, as shown in fig. 5, the thickness of the elastic arm 23 is smaller than the thickness of the first elastic arm 21 and the second elastic arm 22; the thickness of the resilient arm 23 is equal to the thickness of the first resilient arm 21 and the second resilient arm 22, as shown in fig. 4. According to the size of the hole of the PCB, under the condition that the thicknesses of the first elastic arm 21 and the second elastic arm 22 of the fisheye terminal are fixed, the thicknesses of the elastic support arms 23 can be adjusted, the elastic support arms 23 are correspondingly changed to generate reverse acting forces to the first elastic arm 21 and the second elastic arm 22, so that the fisheye terminal is adjusted to be proper in holding force, and the fisheye terminal can be conveniently inserted or pulled out.

Further, referring to fig. 3, when the number of the elastic arms 23 is odd, the largest center line is used as one elastic arm 23, and the rest of the elastic arms 23 are symmetrically arranged with respect to the elastic arm 23 on the largest center line. Specifically, if the number of the elastic support arms 23 is 5, one elastic support arm 23 is arranged on the maximum center line on the fisheye hole, the other four elastic support arms are symmetrically arranged, two elastic support arms are arranged above the maximum center line, and two elastic support arms are arranged below the maximum center line, so that the first elastic arm 21 and the second elastic arm 22 can receive uniformly distributed reverse acting forces.

Further, referring to fig. 2, when the number of the elastic arms 23 is even, the elastic arms are symmetrically arranged with the maximum center line as an axis. Specifically, if the number of the elastic support arms 23 is 4, the elastic support arms 23 are not disposed at the maximum center line on the fisheye hole, and two elastic support arms are disposed above the maximum center line and two elastic support arms are disposed below the maximum center line, so that the first elastic arm 21 and the second elastic arm 22 can receive uniformly distributed opposing forces.

Further, referring to fig. 1 to 3, the head ends of the plurality of elastic arms 23 are connected to the inner side of the first elastic arm 21, and the tail ends of the plurality of elastic arms 23 are connected to the inner side of the second elastic arm 22. This increases the holding force of the first and second

resilient arms

21 and 22 against the inner wall of the hole in the PCB board.

Further, referring to fig. 1 to 3, the elastic arm 23 above the maximum center line is bent upward in an arc shape, and the elastic arm 23 below the maximum center line is bent downward in an arc shape, so that the plurality of elastic arms 23 are arranged axially symmetrically about the maximum center line. Specifically, when the elastic support arm 23 is extruded by two ends to generate elastic deformation, the elastic support arm 23 above the central line and the elastic support arm 23 below the central line are symmetrically bent, and the holding force of the first elastic arm 21 and the second elastic arm 22 with the inner wall of the hole of the PCB is uniformly increased, so that the first elastic arm and the second elastic arm are completely attached to the inner wall of the hole of the PCB, and stable electric signal transmission is generated.

Further, referring to fig. 1 to 3, the material of the elastic arm 23 includes copper. Specifically, the elastic arm 23 is made of a metal material with a relatively large elasticity, such as copper or iron, and thus is conveniently formed integrally with the first elastic arm 21 and the second elastic arm 22.

Further, referring to fig. 1 to 3, the fisheye terminal further includes a base 3, and a bottom end of the first elastic arm 21 and a bottom end of the second elastic arm 22 are connected to a top end of the base 3. Specifically, the base 3 is square, the bottom end of the first elastic arm 21 and the bottom end of the second elastic arm 22 are connected to form a combined end, and the bottom of the combined 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 many support arm structures of flexible, through set up a plurality of elastic support arms 23 between first elastic arm 21 and second elastic arm 22, a plurality of elastic support arm 23 symmetries set up, the holding power of first elastic arm 21 and second elastic arm 22 with PCB diaphragm orifice inner wall laminating butt has been increased, it makes the holding power distribute evenly to become to set up, make under the condition of rocking or vibration of automobile body, the fisheye terminal can provide stable holding power, prevent to produce contact failure between fisheye terminal and the PCB board, realize low contact resistance, satisfy the demand of system to holding power intensity.

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. 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

1. A fisheye terminal provided with a deformable multi-arm structure, comprising:

the guide structure (1) is used for guiding the fisheye terminal to be inserted into 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 elastic arm (21) and second elastic arm (22) that the symmetry set up, first elastic arm (21) with the both ends interconnect of second elastic arm (22), first elastic arm (21) with be equipped with a plurality of elastic support arm (23) between second elastic arm (22), it is a plurality of elastic support arm (23) with first elastic arm (21) with the biggest central line in the minor axis direction between second elastic arm (22) sets up for the axial symmetry.

2. Fisheye terminal according to claim 1, characterised in that the thickness of the resilient arms (23) is each smaller than or equal to the thickness of the first (21) and second (22) resilient arms.

3. The fisheye terminal of claim 1, wherein if the number of the resilient arms (23) is odd, one resilient arm (23) is located at the maximum centerline, and the remaining resilient arms (23) are symmetrically arranged with respect to the resilient arm (23) located at the maximum centerline.

4. The fisheye terminal of claim 1 wherein the number of resilient legs (23) is even and is arranged axially symmetrically about the maximum centerline.

5. Fisheye terminal according to claim 1, characterised in that the head ends of the resilient arms (23) are connected to the inner side of the first resilient arm (21) and the tail ends of the resilient arms (23) are connected to the inner side of the second resilient arm (22).

6. The fisheye terminal of claim 1 wherein the resilient legs (23) above the maximum centerline are curved upwardly in an arc and the resilient legs (23) below the maximum centerline are curved downwardly in an arc such that the plurality of resilient legs (23) are arranged axially symmetrically about the maximum centerline.

7. Fisheye terminal according to claim 1, characterised in that the material of the resilient arms (23) comprises copper.

8. Fisheye terminal according to claim 1, characterised in that it further comprises a base (3), the bottom end of the first resilient arm (21) and the bottom end of the second resilient arm (22) being connected to the top end of the base (3).

9. An electrical connector comprising the fisheye terminal of any of claims 1-8.