FAKRA board end connector

Abstract

The utility model discloses a FAKRA board end connector, comprising an alloy seat, the alloy seat is provided with a fixing groove and a power connection sleeve, and the fixing groove is communicated with the power connection sleeve; the plug-in shell is connected to the power connection sleeve, a plug-in cavity is formed in the plug-in shell, and a limiting opening is formed in the top surface of the plug-in shell; the terminal assembly is inserted into the fixing groove and extends to the power connection sleeve, and the terminal assembly comprises an upper-row insulator, a lower-row insulator, an upper-row conductive terminal and a lower-row conductive terminal, and the upper-row conductive terminal and the lower-row conductive terminal are arranged in the upper-row insulator and the lower-row insulator and extend to the power connection sleeve; the first shielding sheet is inserted between the upper-row insulator and the lower-row insulator and electrically isolates the upper-row conductive terminal from the lower-row conductive terminal; the second shielding sheet is inserted in the rear part of the fixing groove; the upper row of conductive terminals and the lower row of conductive terminals are respectively provided with a plugging section, a connecting section and a welding section which are arranged in sequence, and the whole welding section is |-shaped or inverted T-shaped. Wiring of the FAKRA board end connector on the PCB is optimized, and meanwhile the high-speed signal transmission stability is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle data connectors, in particular to a FAKRA board-end connector. Background Art

[0002] With the continuous development of automobile autonomous driving technology, the automotive electronics industry has an increasing demand for connectors. For example, data transmission in vehicle-mounted communication equipment needs to be led out through connectors and connected to signals from other devices. Commonly used coaxial connectors can achieve connectivity between communication devices with coaxial cables. The Mini Fakra connector among coaxial connectors can meet the automotive electronics industry's requirements for the versatility of electronic components and is a standard interface in the automotive electronics industry. Compared with other Fakra connectors, the Mini Fakra connector has the advantages of smaller size and higher speed.

[0003] This type of Mini Fakra connector includes: a shell, an insulator, an outer conductor, and an inner conductor, wherein the outer conductor, the inner conductor, and the insulator constitute a coaxial contact, which is inserted and fixed in a contact installation cavity provided in the shell. The shell includes two parts: a front shell and a rear shell. The front shell is used to connect the adapter connector, and the rear shell is used to be installed on a substrate, such as a printed circuit board. Since the coaxial contact is an L-shaped bent contact (the front end extends forward, the rear end extends downward, and the middle part is vertically bent), the rear end part of the coaxial contact is both inserted in the rear shell and extends from the lower part of the rear shell.

[0004] In the prior art, a hole is usually first opened on the printed circuit board, and the coaxial contact is installed on the printed circuit board by using a DIP soldering method. This soldering installation method affects the PCB board routing and the high-frequency performance of the connector. Utility Model Content

[0005] The embodiment of the present application provides a FAKRA board-end connector, which optimizes the routing of the FAKRA board-end connector on the PCB board and effectively improves the stability of high-speed signal transmission.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A FAKRA board-end connector, comprising:

[0008] An alloy seat, wherein a fixing groove and a power connection sleeve are provided on the alloy seat, and the fixing groove is connected to the power connection sleeve;

[0009] A plug-in shell, the plug-in shell is connected to the power connection sleeve, a plug-in cavity is provided inside the plug-in shell, and a limited opening is provided on the top surface;

[0010] A terminal assembly, the terminal assembly is inserted into the fixing groove and extends to the power connection sleeve, the terminal assembly includes upper and lower rows of insulators, and upper and lower rows of conductive terminals disposed in the upper and lower rows of insulators and extending to the power connection sleeve;

[0011] A first shielding sheet is inserted between the upper and lower rows of insulators and electrically isolates the upper and lower rows of conductive terminals;

[0012] A second shielding sheet is inserted into the rear portion of the fixing slot;

[0013] The upper and lower rows of conductive terminals each have a plug-in section, a connection section, and a welding section that are arranged in sequence, and the welding section is in a "┃" shape or an inverted "T" shape as a whole.

[0014] Optionally, vertical distances from the welding sections of the upper row of conductive terminals to the first shielding sheet and the second shielding sheet are equal.

[0015] Optionally, the vertical distances from the welding sections of the lower row of conductive terminals to the first shielding sheet and the front inner wall of the fixing slot are equal.

[0016] Optionally, when the welding section is in an inverted "T" shape as a whole, a through groove is provided at a portion of the welding section close to the PCB board.

[0017] Optionally, the upper and lower rows of conductive terminals are integrally injection molded in the upper and lower rows of insulators.

[0018] Optionally, a first protrusion is provided on the top of the first shielding sheet and can be inserted into a fixing hole of the insulator for fixation, and a fixing pin is provided on the bottom and can be inserted into a PCB board for fixation.

[0019] Optionally, elastic clamping arms are respectively provided on both sides of the middle of the second shielding sheet, which can be locked into the grooves on both sides of the rear of the alloy seat, and a second protrusion is provided on the top, which can be inserted into the through hole provided on the top of the alloy seat for fixation.

[0020] Optionally, a limiting plug-in is also included, and the limiting plug-in can be inserted from the limiting opening at the top of the plug housing to keep the power connection sleeve in the plug cavity.

[0021] The beneficial effect of the utility model is that: by arranging the upper and lower rows of conductive terminals to have the plug-in section, the connection section and the welding section arranged in sequence, the welding section is in a "┃" shape or an inverted "T" shape as a whole, so that the bottom of the welding section 423 is directly close to the PCB board and welded by SMT method, the routing of the FAKRA board-end connector on the PCB board is optimized, and the stability of high-speed signal transmission is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0023] Figure 2 It is an exploded schematic diagram of an embodiment of the utility model;

[0024] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0025] Figure 4 It is a schematic structural diagram of a terminal assembly in an embodiment of the utility model;

[0026] Figure 5a It is a structural schematic diagram of a “┃”-shaped conductive terminal in an embodiment of the utility model;

[0027] Figure 5b It is a schematic structural diagram of an inverted “T” shaped conductive terminal in an embodiment of the utility model.

[0028] The reference numerals in the drawings of the specification include:

[0029] FAKRA board-end connector-100, alloy seat-2, fixing slot-21, power connection sleeve-22, groove-23, through hole-24, front inner wall of fixing slot-25, plug-in shell-3, plug-in cavity-31, limiting opening-32, terminal assembly-4, upper and lower rows of insulators-41, fixing hole-411, upper and lower rows of conductive terminals-42, plug-in section-421, connecting section-422, welding section-423, through slot-424, first shielding plate-5, first protrusion-51, fixing pin-52, second shielding plate-6, elastic clamp arm-61, second protrusion-62, limiting plug-in-7, PCB board-200. DETAILED DESCRIPTION

[0030] The embodiment of the present application provides a FAKRA board-end connector to solve the technical problem in the prior art that a hole needs to be opened on the PCB due to the use of a solder foot DIP soldering method, which affects the PCB board routing and the high-frequency performance of the connector.

[0031] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0032] By arranging the upper and lower rows of conductive terminals to have the plug-in section, the connection section and the welding section arranged in sequence, the welding section is in a "┃" shape or an inverted "T" shape as a whole, so that the bottom of the welding section 423 is directly close to the PCB board and welded by SMT, thereby optimizing the routing of the FAKRA board-end connector on the PCB board and effectively improving the stability of high-speed signal transmission.

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0034] It should be noted that any directional indications in this application, such as front, back, left, right, up, down, inside, outside, front end, back end, left end, right end, upper part, lower part, left side, right side, longitudinal, transverse, axial, radial, front side, back side, etc., are all relative concepts.

[0035] like Figures 1 to 5b As shown, this is an embodiment of the present application:

[0036] A FAKRA board-end connector 100, comprising:

[0037] An alloy seat 2, wherein a fixing groove 21 and a power connection sleeve 22 are provided on the alloy seat 2, and the fixing groove 21 is connected to the power connection sleeve 22;

[0038] A plug-in housing 3, the plug-in housing 3 is connected to the power connection sleeve 22, a plug-in cavity 31 is provided inside the plug-in housing 3, and a limited opening 32 is provided on the top surface;

[0039] The terminal assembly 4 is inserted into the fixing groove 21 and extends to the power connection sleeve 22. The terminal assembly 4 includes upper and lower rows of insulators 41, and upper and lower rows of conductive terminals 42 disposed in the upper and lower rows of insulators 41 and extending to the power connection sleeve 22;

[0040] The first shielding sheet 5 is inserted between the upper and lower rows of insulators 41 and electrically isolates the upper and lower rows of conductive terminals 42;

[0041] The second shielding sheet 6 is inserted into the rear portion of the fixing slot 21;

[0042] The upper and lower rows of conductive terminals 42 each have a plug-in section 421, a connection section 422, and a welding section 423 that are sequentially arranged, and the welding section 423 is in a "┃" shape or an inverted "T" shape as a whole. By setting the welding section 423 of the conductive terminal 42 to be in a "┃" shape or an inverted "T" shape, the bottom of the welding section 423 is directly close to the PCB board and welded by SMT, thereby optimizing the routing of the FAKRA board-side connector on the PCB board, and effectively improving the stability of high-speed signal transmission.

[0043] Optional, see Figure 3As shown, the vertical distance L3 from the welding section 423 of the upper row of conductive terminals to the first shielding sheet 5 and the vertical distance L4 from the welding section 423 to the second shielding sheet 6 are equal; the vertical distance L2 from the welding section 423 of the lower row of conductive terminals to the first shielding sheet 5 and the vertical distance L1 to the front inner wall 25 of the fixing groove are equal. Setting the distances from the welding section 423 to the metal shielding members on both sides to be equal improves the SI performance of the FAKRA board-end connector 100.

[0044] Optionally, when the soldering section 423 is in an inverted "T" shape as a whole, a through slot 424 is provided at a portion of the soldering section 423 close to the PCB board 200. In this way, the impedance can be optimized and the problem of solder creeping can be improved.

[0045] Optionally, the upper and lower rows of conductive terminals 42 are integrally injection molded in the upper and lower rows of insulators 41. It is understandable that this can ensure the consistency of the flatness of the welding sections 423 of the upper and lower rows of terminals, avoiding the problem of cold welding.

[0046] Optionally, a first protrusion 51 is provided on the top of the first shielding sheet 5 and can be inserted into the fixing hole 411 of the insulator for fixing, and a fixing pin 52 is provided on the bottom and can be inserted into the PCB board for fixing.

[0047] Optionally, elastic clamping arms 61 are respectively provided on both sides of the middle part of the second shielding plate 6, which can be locked into the grooves 23 on both sides of the rear part of the alloy seat 2, and a second protrusion 62 is provided on the top, which can be inserted into the through hole 24 provided on the top of the alloy seat 2 for fixation.

[0048] Optionally, a limiting plug-in 7 is further included, and the limiting plug-in 7 can be inserted from the limiting opening 32 at the top of the plug-in housing 3 to keep the power connection sleeve 22 in the plug-in cavity 31 .

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A FAKRA board-end connector, comprising: An alloy seat, wherein a fixing groove and a power connection sleeve are provided on the alloy seat, and the fixing groove is connected to the power connection sleeve; A plug-in shell, the plug-in shell is connected to the power connection sleeve, a plug-in cavity is provided inside the plug-in shell, and a limited opening is provided on the top surface; A terminal assembly, the terminal assembly is inserted into the fixing groove and extends to the power connection sleeve, the terminal assembly includes upper and lower rows of insulators, and upper and lower rows of conductive terminals disposed in the upper and lower rows of insulators and extending to the power connection sleeve; A first shielding sheet is inserted between the upper and lower rows of insulators and electrically isolates the upper and lower rows of conductive terminals; A second shielding sheet is inserted into the rear portion of the fixing slot; It is characterized in that the upper and lower rows of conductive terminals each have a plug-in section, a connecting section, and a welding section which are arranged in sequence, and the welding section is in a "┃" shape or an inverted "T" shape as a whole.

2. The FAKRA board-end connector according to claim 1, characterized in that: The vertical distances from the welding sections of the upper row of conductive terminals to the first shielding sheet and the second shielding sheet are equal.

3. The FAKRA board-end connector according to claim 2, characterized in that: The vertical distances from the welding sections of the lower row of conductive terminals to the first shielding sheet and the front inner wall of the fixing slot are equal.

4. The FAKRA board-end connector according to claim 3, characterized in that: When the welding section is in an inverted "T" shape as a whole, a through groove is provided at a portion of the welding section close to the PCB board.

5. The FAKRA board-end connector according to claim 4, characterized in that: The upper and lower rows of conductive terminals are integrally injection-molded in the upper and lower rows of insulators.

6. The FAKRA board connector according to claim 5, characterized in that: The first shielding sheet is provided with a first protrusion on the top which can be inserted into the fixing hole of the insulator for fixing, and a fixing pin is provided on the bottom which can be inserted into the PCB board for fixing.

7. The FAKRA board-end connector according to claim 6, characterized in that: The second shielding sheet is provided with elastic clamping arms on both sides of the middle part, which can be locked into the grooves on both sides of the rear part of the alloy seat, and a second protrusion is provided on the top, which can be inserted into the through hole provided on the top of the alloy seat for fixation.

8. The FAKRA board-end connector according to any one of claims 1 to 7, characterized in that: It also includes a limiting plug-in, which can be inserted from the limiting opening on the top of the plug-in shell to keep the power connection sleeve in the plug-in cavity.

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