Floating type board end connector

Abstract

The utility model discloses a floating type board end connector. The floating type board end connector comprises a fixed assembly, a movable assembly and a flexible terminal. Wherein the fixed assembly comprises a fixed outer conductor and a hollow fixed insulator; the movable assembly comprises a floating outer conductor, the floating outer conductor comprises a body part, a plug-in part and an abutting part, a hollow floating insulator is coaxially mounted in the fixed outer conductor, and the bottom of the floating insulator is in sliding fit with the top of the fixed insulator; the flexible terminal is installed in the fixed insulator and the floating insulator, and comprises a plugging segment, a deformation segment and a welding segment. Compared with the prior art, according to the utility model, the two-section insulator design is adopted, the plugging section and the welding section of the flexible terminal are respectively fixed, the fulcrum height is raised, and the reliability and the stability of the connection quality between the connector and a PCB (Printed Circuit Board) in the vibration process of long-term operation of an automobile are improved. Meanwhile, the top of the floating insulator is provided with a protection bench, thereby preventing the elastic contact sheets from being damaged and deformed during plugging, and prolonging the service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and particularly relates to a floating board-end connector. Background Art

[0002] With the increasing maturity of autonomous driving and the more extensive application of vehicle-mounted cameras, the tolerance ability of the existing rear cover adapter of the vehicle-mounted camera to mate with the board-end of the camera has attracted more and more attention from the host factory. At present, in order to pursue the development of higher pixel lenses, the installation scheme of the camera module has been iterated to an AA PCB board. This installation scheme puts forward greater tolerance and higher reliability requirements for the rear shell adapter and the camera board-end. Therefore, it is urgent to develop a floating camera board-end connector with greater mating tolerance and higher reliability.

[0003] The existing floating radio frequency connector includes a fixed outer conductor, a floating outer conductor, a floating insulator and a floating inner conductor. The terminal solder feet on the floating inner conductor are welded to the substrate. During the deviation mating process and in the vibrating working environment, the terminal solder feet are easily subjected to the yaw stress caused by the deformation of the flexible part on the floating inner conductor, and the solder joints are easily detached, resulting in the failure of the lens to black out and flash. Therefore, there is an urgent need for a radio frequency connector that can be floatingly docked and the floating components are in contact with the PCB board. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a floating board-end connector to solve the deficiencies of the existing technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A floating board-end connector includes a fixed component, a movable component and a flexible terminal; wherein, the fixed component includes a fixed outer conductor, the bottom of the fixed outer conductor is provided with outer conductor solder feet, and a hollow fixed insulator is embedded inside the fixed outer conductor; the movable component includes a floating outer conductor, the upper end of the body part of the floating outer conductor is provided with a mating part for directly contacting the plugging cavity of an external plug-in, the lower end of the body part of the floating outer conductor is provided with a contact part elastically and constantly abutted against the inner wall of the fixed outer conductor, a hollow floating insulator is coaxially installed inside the fixed outer conductor, and the bottom of the floating insulator is slidably matched with the top of the fixed insulator; the flexible terminal includes a plugging section coaxially and fixedly installed inside the floating insulator, a deformation section extending from the bottom of the plugging section and bent, and a welding section formed by bending the end of the deformation section and extending horizontally outward through the fixed insulator for welding with the PCB board.

[0007] Furthermore, the mating part includes a plurality of elastic contact pieces integrally formed at the upper end of the body part in a circumferentially uniform manner.

[0008] Further, an arcuate elastic contact head protruding outward is formed by bending the upper end of the elastic contact piece.

[0009] Further, a certain gap is provided between two adjacent elastic contact pieces to form a card slot capable of limiting the floating insulator, and an anti-rotation convex block corresponding to the card slot is provided on the outer wall of the floating insulator.

[0010] Further, the abutting portion includes a plurality of arcuate abutting pieces extending from the bottom of the floating outer conductor and bent outward.

[0011] Further, the upper end opening of the fixed outer conductor is bent inward and closed to form a limiting platform for preventing the abutting piece from slipping off.

[0012] Further, the fixed insulator includes a base and a support head integrally formed in the middle of the base and protruding upward, and a support cavity matching with the support head is provided at the bottom of the floating insulator.

[0013] Further, an outer chamfer is provided at the top of the support head, and correspondingly, the inner wall of the support cavity expands outward in a flared shape.

[0014] Further, there are a plurality of outer conductor welding legs, which are formed by extending from the bottom of the fixed outer conductor and bending horizontally outward.

[0015] Further, a protection platform with a diameter larger than the outer diameter of the top end of the floating outer conductor is provided at the top of the floating insulator, and an outer chamfer for convenient insertion is also provided on the protection platform.

[0016] Compared with the prior art, the beneficial technical effects of the floating board-end connector provided by the present invention are as follows:

[0017] 1. By adopting a two-stage insulator design, the terminals of the floating section and the terminals of the board-attaching section are respectively fixed, raising the fulcrum height, so that when the terminals of the floating section move, the influence on the welding board feet is reduced, and during the long-term operation and vibration of the vehicle, the reliability and stability of the connection quality between the connector and the PCB board are effectively improved.

[0018] 2. By providing a protection platform at the top of the floating insulator, it is possible to prevent the elastic contact pieces at the upper end of the floating outer conductor from being damaged and deformed during the insertion process of the connector, thereby extending the service life of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts. In the drawings:

[0020] Figure 1A schematic diagram of the overall structure of a floating board-end connector provided by an embodiment of the utility model;

[0021] Figure 2 A cross-sectional view of a floating board-end connector provided by an embodiment of the utility model;

[0022] Figure 3 An exploded view of a floating board-end connector provided by an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the structure of a floating insulator in a floating board-end connector provided by an embodiment of the utility model;

[0024] Figure 5 A schematic diagram of the structure of a fixed insulator in a floating board-end connector provided by an embodiment of the utility model;

[0025] Figure 6 A schematic structural diagram of a flexible terminal in a floating board-end connector provided in an embodiment of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-fixed outer conductor, 101-outer conductor welding foot, 102-fixed plate, 103-limiting platform, 2-fixed insulator, 201-movable cavity, 202-support head, 203-base, 3-floating outer conductor, 301-main body, 3011-card slot, 302-elastic contact piece, 3021-elastic contact head, 303-abutment piece, 4-floating insulator, 401-anti-rotation protrusion, 402-protective platform, 5-flexible terminal, 501-plug-in section, 5011-undercut, 502-deformation section, 503-welding section. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The embodiment of the utility model provides a floating board-end connector, comprising a fixed component, a movable component and a flexible terminal 5. Specifically:

[0030] like Figures 1 to 3As shown, in this embodiment, the fixing component includes a fixed outer conductor 1 and a fixed insulator 2. Among them, the bottom of the fixed outer conductor 1 is provided with outer conductor welding feet 101. There are multiple outer conductor welding feet 101, which are formed by extending from the bottom of the fixed outer conductor 1 and horizontally bending outward. The fixed outer conductor 1 is welded and fixed on the PCB board through the outer conductor welding feet 101. The fixed insulator 2 is pressed into the bottom of the fixed outer conductor 1 and coaxially embedded in the fixed outer conductor 1. Moreover, two fixing pieces 102 extending outward are provided at the bottom of the fixed outer conductor 1. After the fixed insulator 2 is completely embedded in the fixed outer conductor 1 to the limit position, the two fixing pieces 102 on the fixed outer conductor 1 are bent inward to press the fixed insulator 2. An activity cavity 201 for the flexible terminal 5 to move is also opened in the middle of the fixed insulator 2, and a welding foot fixing groove for the flexible terminal 5 to extend horizontally outward is opened at the bottom, for the subsequent installation of the flexible terminal 5.

[0031] As Figures 1 to 4 shown, the activity component includes a floating outer conductor 3 and a floating insulator 4. The floating outer conductor 3 includes a body part 301 bent into a cylindrical shape, a docking part for directly contacting the docking cavity of an external plug, and a butting part for abutting against the inner wall of the fixed outer conductor 1. Among them, the docking part includes a plurality of elastic contact pieces 302 integrally formed at the upper end of the body part 301 in a circumferentially uniform manner. A certain gap is provided between adjacent two elastic contact pieces 302 to form a clamping groove 3011 capable of limiting the floating insulator 4. The upper end of the elastic contact piece 302 is bent into an outwardly convex arc-shaped elastic contact head 3021 to improve the contact stability with the docking cavity of the external plug. The butting part is located at the lower end of the floating outer conductor 3 and includes a plurality of arc-shaped butting pieces 303 extending from the bottom of the floating outer conductor 3 and bending outward. Correspondingly, the upper end opening of the fixed outer conductor 1 is bent inward and closed to form a limiting platform 103 for preventing the butting pieces 303 from slipping off. The butting pieces 303 are elastically and constantly abutted against the inner wall of the fixed outer conductor 1. The outer wall of the floating insulator 4 is provided with an anti-rotation convex block 401. The floating insulator 4 is coaxially inserted into the floating outer conductor 3 from the opening of the docking part of the floating outer conductor 3. At the same time, the anti-rotation convex block 401 of the floating insulator 4 corresponds to the clamping groove 3011 on the side wall of the floating outer conductor 3 to achieve limiting. And the bottom of the floating insulator 4 is in sliding fit with the top of the fixed insulator 2, so that the floating outer conductor 3 can swing with the top of the fixed insulator 2 below it as a fulcrum. During the swinging process, the outer arc-shaped surface of the butting piece 303 is constantly abutted against the inner wall of the fixed outer conductor 1, realizing the floating connection between the floating outer conductor 3 and the fixed outer conductor 1.

[0032] As Figure 6As shown in the figure, the flexible terminal 5 includes a plug-in section 501, a deformation section 502, and a welding section 503. An undercut 5011 is provided on the outer wall of the plug-in section 501, which is coaxially and fixedly installed in the floating insulator 4 and is used to dock with the terminal of an external plug-in. The deformation section 502 is S-shaped and is formed by extending and bending from the bottom of the plug-in section 501. The deformation section 502 can ensure that the positional relationship between the plug-in section 501 and the welding section 503 floats within a certain range through its own elastic deformation. The welding section 503 is formed by bending the end of the deformation section 502 and extending horizontally outward through the fixed insulator 2, and is used to weld with the PCB board.

[0033] As Figure 5 shown, as a preferred embodiment, the fixed insulator 2 includes a base 203 and a support head 202 integrally formed in the middle of the base 203 and protruding upward. A support cavity matching the support head 202 is provided at the bottom of the floating insulator 4. The support head 202 can not only provide axial support for the floating insulator 4, but also enable the floating part to make a radial swing relative to the fixed component with the support head 202 as the fulcrum. Moreover, an external chamfer is provided at the top of the support head 202. Correspondingly, the inner wall of the support cavity expands outward in a flared shape to expand the floating range and make the swinging process smoother.

[0034] As Figure 4 shown, further, a protection platform 402 is also provided at the top of the floating insulator 4. The diameter of the protection platform 402 is slightly larger than the outer diameter of the top end of the floating outer conductor 3, and an external chamfer with a guiding function for convenient insertion is also provided on the protection platform 402, effectively preventing the elastic contact piece 302 at the upper end of the floating outer conductor 3 from being damaged and deformed due to irregular insertion during the insertion process, and extending the service life of the connector.

[0035] The above embodiments only represent the implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A floating board-end connector, characterized in that: include: A fixed assembly comprises a fixed outer conductor (1), the bottom of the fixed outer conductor (1) is provided with an outer conductor welding foot (101), and a hollow fixed insulator (2) is embedded inside the fixed outer conductor (1); The movable component comprises a floating outer conductor (3), the upper end of the main body (301) of the floating outer conductor (3) is provided with a plug-in portion for directly contacting the plug-in cavity of an external plug-in, the lower end of the main body (301) of the floating outer conductor (3) is provided with a contact portion for elastically and permanently contacting the inner wall of the fixed outer conductor (1), a hollow floating insulator (4) is coaxially installed inside the fixed outer conductor (1), and the bottom of the floating insulator (4) is slidably matched with the top of the fixed insulator (2); The flexible terminal (5) comprises a plug-in section (501) coaxially fixedly installed in the floating insulator (4), a deformation section (502) extending from the bottom of the plug-in section (501) and bent, and a welding section (503) for welding to a PCB board formed by bending the end of the deformation section (502) and extending horizontally outward through the fixed insulator (2).

2. A floating board-end connector according to claim 1, characterized in that: The plug-in portion comprises a plurality of elastic contact pieces (302) uniformly and integrally formed on the upper end of the main body portion (301) in the circumferential direction.

3. A floating board-end connector according to claim 2, characterized in that: The upper end of the elastic contact piece (302) is bent to form an outwardly protruding arc-shaped elastic contact head (3021).

4. A floating board-end connector according to claim 2, characterized in that: A certain gap is formed between two adjacent elastic contact sheets (302) to form a slot (3011) capable of limiting the position of the floating insulator (4), and an anti-rotation protrusion (401) corresponding to the slot (3011) is provided on the outer wall of the floating insulator (4).

5. The floating board-end connector according to claim 1, characterized in that: The abutment portion comprises a plurality of arc-shaped abutment pieces (303) extending from the bottom of the floating outer conductor (3) and bending outwards.

6. A floating board-end connector according to claim 5, characterized in that: The upper end opening of the fixed outer conductor (1) is bent inwardly to form a limit platform (103) for preventing the abutment sheet (303) from slipping off.

7. The floating board-end connector according to claim 1, characterized in that: The fixed insulator (2) comprises a base (203) and a support head (202) integrally formed in the middle of the base (203) and protruding upwards, and a support cavity matching the support head (202) is provided at the bottom of the floating insulator (4).

8. A floating board-end connector according to claim 7, characterized in that: The top of the support head (202) is provided with an outer chamfer, and correspondingly, the inner wall of the support cavity expands outwards in a trumpet shape.

9. The floating board-end connector according to claim 1, characterized in that: There are a plurality of outer conductor welding feet (101), which are formed by extending from the bottom of the fixed outer conductor (1) and bending outward horizontally.

10. A floating board-end connector according to any one of claims 1 to 9, characterized in that: A protective platform (402) having a diameter greater than the outer diameter of the top end of the floating outer conductor (3) is provided on the top of the floating insulator (4), and an outer chamfer for convenient insertion is also provided on the protective platform (402).

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