Board end connector

Abstract

The utility model discloses a board end connector, which comprises a shell (1), inner plastic cement (2) and a terminal structure (3), the terminal structure (3) is positioned in the shell (1) and is fixedly mounted through the inner plastic cement (2), the terminal structure (3) comprises a first terminal (31) and a second terminal (32), the first terminal (31) comprises a contact part (311) and a mounting part (312), and the second terminal (32) comprises a contact part (311) and a mounting part (312). And the mounting part (312) of the first terminal (31) is movably connected with the second terminal (32), so that the first terminal (31) has a swing amount relative to the second terminal (32). Through the above mode, the female end connector can actively adapt to the coaxiality deviation of the female end connector, prevents stress from being concentrated on a single contact point, enhances the elastic deformation capability, is high in compatibility, prolongs the service life, and optimizes the high-frequency application.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile connector, especially a board end connector. BACKGROUND

[0002] With the continuous improvement of the degree of electronization and intelligentization of automobile, the automobile connector as the key component of electrical system, its importance is increasingly prominent. However, the traditional automobile connector has the following problems in the application process: poor coaxiality and poor adaptability: the existing connector depends on the precise assembly process, if the male terminal and the female seat have coaxiality deviation (such as angular deviation or radial deviation), it is easy to cause the increase of contact resistance, the aggravation of wear and tear, and even the connection failure. Single elastic compensation direction: the existing elastic structure mainly aims at the buffering of axial insertion force, and the compensation capacity for lateral or rotational deviation is insufficient. Rigid restriction of outer metal shell: although the traditional metal shell enhances protection, the rigid material cannot absorb the assembly deviation through elastic deformation, and long-term use is easy to cause fatigue damage due to stress concentration. SUMMARY

[0003] The technical problem solved by the utility model is to provide a board end connector which can actively adapt to the coaxiality deviation of the female seat, avoid stress concentration at a single contact point, enhance the elastic deformation capacity, have high compatibility, prolong the service life and optimize high-frequency application.

[0004] To solve the above technical problems, one technical scheme of the utility model is to provide a board end connector, which comprises a shell, an inner plastic and a terminal structure, the terminal structure is located inside the shell and is fixedly installed through the inner plastic, the terminal structure comprises a first terminal and a second terminal, the first terminal comprises a contact part and a mounting part, the mounting part of the first terminal is movably connected with the second terminal, so that the first terminal has a swing amount relative to the second terminal.

[0005] The shell is in a cylindrical shape, and an elastic structure is arranged at one end of the shell, and the elastic structure is matched with a female end connector.

[0006] The elastic structure comprises a plurality of contact plates, and the plurality of contact plates have gaps therebetween and are in a petal shape.

[0007] A plurality of inward barbs are arranged on the inner side wall of the shell, and are used for piercing the inner plastic to make the inner plastic have a retaining force.

[0008] The contact part of the first terminal is in a needle shape, the mounting part of the first terminal is in a spherical shape, the second terminal is in a cylindrical shape, and the mounting part of the first terminal is embedded in the second terminal.

[0009] The inner diameter of the second terminal is not greater than the diameter of the mounting part of the first terminal.

[0010] The second terminal is provided with a deformation part which is matched with the mounting part of the first terminal.

[0011] The deformation part comprises at least one through hole.

[0012] The outer side wall of the second terminal is provided with a plurality of external inner barbs for connecting with the inner plastic.

[0013] The end of the second terminal away from the deformation part extends outwardly a plurality of pins perpendicular to the side wall of the second terminal.

[0014] The board end connector has the advantages that:

[0015] 1. The first terminal has a multi-degree-of-freedom compensation design, small amplitude rotation mechanism: the first terminal adopts a segmented spherical contact structure, allowing free rotation within ±5°, thereby actively adapting to the coaxiality deviation of the female connector.

[0016] 2. The elastic structure of the shell adopts a petal-shaped design, absorbing radial or axial deviation through local deformation, avoiding stress concentration at a single contact point, and enhancing the elastic deformation capability.

[0017] 3. The compatibility of the application is improved, the rotation freedom of the first terminal and the shell work together to compensate for radial deviation and angular deviation, significantly reducing the assembly precision requirement.

[0018] 4. The application reduces the wear rate of the contact through dynamic stress dispersion, prolonging the service life.

[0019] 5. The shell has electromagnetic shielding performance, combined with the low impedance characteristics of the first terminal, ensuring the stability of high-frequency signal transmission, and optimizing high-frequency application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the board end connector of the utility model;

[0021] Figure 2 is a structural schematic view of the outer metal shell of the board end connector of the utility model;

[0022] Figure 3 is a front view of the board end connector of the utility model;

[0023] Figure 4 is Figure 2 a sectional view of

[0024] Figure 5 is a schematic view of the internal structure of the board end connector of the utility model;

[0025] Figure 6 isFigure 5 A sectional view;

[0026] Figure 7 This is a schematic diagram of the terminal assembly of a board-end connector according to this utility model. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0028] Please see Figures 1-7 The embodiments of this utility model include:

[0029] The present invention provides a board-end connector, comprising a housing 1, an inner plastic 2, and a terminal structure 3. The terminal structure 3 is located inside the housing 1 and is fixedly installed through the inner plastic 2. The terminal structure 3 includes a first terminal 31 and a second terminal 32. The first terminal 31 includes a contact portion 311 and a mounting portion 312. The mounting portion 312 of the first terminal 31 is movably connected to the second terminal 32, so that the first terminal 31 has a swing amount relative to the second terminal 32.

[0030] The outer shell 1 is cylindrical, and one end of it is provided with an elastic structure 11 for mating with the female connector. More specifically, the outer shell 1 is made of metal to enhance protection and increase the compensation direction through the material. Furthermore, due to the elastic structure, a certain radial compensation can be obtained when the male and female connectors are mated, reducing the risk of coaxiality defects and dispersing stress during mating, thereby increasing the service life of the connector and ensuring the yield rate of connector assembly.

[0031] The elastic structure 11 includes a plurality of contact plates 111, which are spaced apart in a petal-like structure. In a specific implementation of this application, the elastic structure includes eight contact plates, and more specifically, the contact areas of the contact plates are chamfered.

[0032] The inner wall of the outer shell 1 is provided with a plurality of inwardly pointing barbs 12, which are used to pierce the inner plastic 2 so that the two have a retaining force to fix them together. Specifically, four barbs are provided evenly distributed on the inner wall of the outer shell.

[0033] The contact portion 311 of the first terminal 31 is needle-shaped, the mounting portion 312 of the first terminal 31 is spherical, and the second terminal 32 is cylindrical. The mounting portion 312 of the first terminal 31 is embedded in the second terminal 32. Specifically, because the mounting portion of the first terminal is spherical, it has a certain amount of rotation when it is embedded in the second terminal, enabling multi-degree-of-freedom movement of the contact portion of the first terminal.

[0034] The inner diameter of the second terminal 32 is not greater than the diameter of the mounting portion of the first terminal 31.

[0035] The second terminal 32 is provided with a deformation portion which is matched with the mounting portion 312 of the first terminal 31.

[0036] The deformation portion comprises at least one through hole 321. In the specific implementation, the deformation portion has eight uniformly distributed through holes which are arranged in a row when the second terminal is unfolded, so that the radial deviation and the angle deviation are compensated when the spherical mounting portion of the first terminal rotates in the second terminal.

[0037] The outer side wall of the second terminal 32 is provided with a plurality of external inner barbs 322 which are used for clamping the inner plastic 2 and have a retaining force. The second terminal is limited by the barbs and has a retaining force, so that the second terminal and the first terminal are limited from large-scale deviation, and the freedom degrees of the first terminal and the second terminal are ensured to be within the tolerance range of assembly.

[0038] The end of the second terminal 32 away from the deformation portion extends outwardly and has a plurality of pins 323 which are perpendicular to the side wall of the second terminal 32. In the specific implementation, the pins are four and are cross-distributed, so that the planeness of welding with the PCB is improved.

[0039] The board end connector has the following beneficial effects:

[0040] 1. The first terminal has a multi-freedom degree compensation design and a small-amplitude rotation mechanism: the first terminal adopts a segmented spherical contact structure and is allowed to rotate freely within a range of ±5°, so as to actively adapt to the coaxiality deviation of the female connector.

[0041] 2. The elastic structure of the shell adopts an eight-petal symmetrical design, absorbs radial or axial deviation through local deformation, avoids stress concentration at a single contact point, enhances the elastic deformation capacity, there is a certain gap between adjacent petals, a chamfer is arranged at the contact area, a certain radial compensation can be obtained when the male and female connectors are matched, the risk of coaxiality deviation is reduced, the stress during matching is dispersed, the service life of the connector is increased, and the yield of the connector assembly is ensured.

[0042] 3. The compatibility of the connector is improved, the rotation freedom degree of the first terminal cooperates with the shell, radial deviation and angle deviation are compensated, and the assembly precision requirement is significantly reduced.

[0043] 4. The dynamic stress is dispersed, the wear rate of the contact piece is reduced, and the service life is prolonged.

[0044] 5. The housing of the present application has electromagnetic shielding properties, combined with the low impedance characteristics of the first terminal, ensuring the stability of high frequency signal transmission, optimizing its high frequency application.

[0045] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A board-end connector, characterized in that, The device includes a housing (1), an inner plastic (2), and a terminal structure (3). The terminal structure (3) is located inside the housing (1) and is fixedly installed through the inner plastic (2). The terminal structure (3) includes a first terminal (31) and a second terminal (32). The first terminal (31) includes a contact portion (311) and a mounting portion (312). The mounting portion (312) of the first terminal (31) is movably connected to the second terminal (32), so that the first terminal (31) has a swing amount relative to the second terminal (32).

2. A board-end connector according to claim 1, characterized in that, The outer shell (1) is cylindrical, and one end of it is provided with an elastic structure (11) that mates with the female connector.

3. A board-end connector according to claim 2, characterized in that, The elastic structure (11) includes a plurality of contact plates (111), and the plurality of contact plates (111) have gaps between them in a petal-like structure.

4. A board-end connector according to claim 3, characterized in that, The inner wall of the outer shell (1) is provided with a plurality of inward barbs (12) for piercing the inner plastic (2) so that the two have a retaining force to fix them.

5. A board-end connector according to claim 1, characterized in that, The contact portion (311) of the first terminal (31) is needle-shaped, the mounting portion (312) of the first terminal (31) is spherical, the second terminal (32) is cylindrical, and the mounting portion (312) of the first terminal (31) is embedded in the second terminal (32).

6. A board-end connector according to claim 5, characterized in that, The inner diameter of the second terminal (32) is not greater than the diameter of the mounting portion of the first terminal (31).

7. A board-end connector according to claim 5, characterized in that, The second terminal (32) is provided with a deformable part, which is matched and installed with the mounting part (312) of the first terminal (31).

8. A board-end connector according to claim 7, characterized in that, The deformed portion includes at least one through hole (321).

9. A board-end connector according to claim 1, characterized in that, The outer wall of the second terminal (32) is provided with a plurality of outer and inner barbs (322) for engaging with the inner plastic (2) with retaining force.

10. A board-end connector according to claim 7, characterized in that, The second terminal (32) has a plurality of pins (323) extending outward from the end away from the deformed part, which are perpendicular to the sidewall of the second terminal (32).

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