Plug connector

Abstract

The utility model discloses a plug connector, which has better overall structural strength, and comprises an insulating body, which is provided with an accommodating cavity penetrating along the front-back direction; the upper-row terminal assembly is combined with the upper space of the accommodating cavity of the insulating body; the lower-row terminal assembly is combined in the lower space of the accommodating cavity of the insulating body; the grounding piece comprises a fixed arm extending in the left-right direction, elastic arms extending forwards from the fixed arm and arranged on the left side and the right side of the containing cavity and butt joint arms extending backwards from the fixed arm, and the two butt joint arms are located on the left side and the right side of the rear end of the insulation body respectively; the fixing feet are formed by protruding the butt joint arms towards the outer side of the containing cavity in the left-right direction; the metal shell sleeves the periphery of the insulating body; the buckle notch is formed by recessing the inner side surface of the rear end of the insulating body towards the outside of the accommodating cavity along the left-right direction; and the fixing feet are correspondingly clamped in the buckle notches.

Description

Technical Field

[0001] This application relates to a plug connector. Background Technology

[0002] USB 3.1 is the latest USB specification, initiated by major companies such as Intel. Data transfer speeds can be increased to 10Gbps. Compared to the traditional USB 2.0 technology, the new USB technology uses a more efficient data encoding system and provides more than double the effective data throughput. USB 3.1 includes three types: Type-A, Type-B, and Type-C. In December 2013, the USB 3.0 rollout team released renderings of the next-generation USB Type-C connector, and mass production began in August 2014. The highlights of the new connector are a thinner design, faster transfer speeds (up to 10Gbps), and more powerful power delivery (up to 100W). Its biggest advantage is reversible insertion, solving the problem of "USB never being plugged in correctly," allowing for insertion in either direction.

[0003] For relevant prior art, please refer to Chinese Invention Patent Publication 202411067453.6, which discloses a plug connector. The plug connector has a grounding component 23, which is assembled and fixed in the insulating body. In order to make the grounding component 23 have a better grounding shielding effect and a more stable fixation with the mating substrate, the rear end of the grounding component 23 is designed to form a complex structure consisting of a connecting part 2330, a first grounding pin 2331, a second grounding pin 2332, and a third grounding pin 2333. However, in actual production, it was found that due to repeated bending and stamping at multiple positions and angles in the concentrated area, the position and size of the area are difficult to control. After the insulating body, metal shell, and grounding component 23 are all assembled, the actual positions of the first grounding pin 2331, the second grounding pin 2332, and the third grounding pin 2333 deviate significantly from the design value, and even become skewed. This causes the mating substrate to be misaligned or interfered with after insertion. In addition, in the existing technical solutions, the grounding component 23 is not firmly fixed to the insulating body and the metal shell, which makes the overall structural strength of the connector poor.

[0004] Therefore, it is necessary to design a new solution to address the aforementioned technical problems. Utility Model Content

[0005] The purpose of this application is to provide a plug connector that can improve the overall structural strength of the plug connector.

[0006] To achieve the aforementioned objective, this application provides the following technical solution:

[0007] A plug connector, comprising:

[0008] An insulating body having a cavity that extends through the front and back directions;

[0009] The upper terminal assembly is attached to the upper space of the receiving cavity of the insulating body and includes multiple upper terminal pieces arranged in the left-right direction.

[0010] The lower terminal assembly is incorporated into the lower space of the receiving cavity of the insulating body, and includes a plurality of lower terminal pieces arranged in a left-right direction;

[0011] The grounding component includes a fixed arm extending in the left-right direction, elastic arms extending forward from the fixed arm and disposed on the left and right sides of the receiving cavity, and a docking arm extending backward from the fixed arm. The docking arms are provided in two and are respectively located on the left and right sides of the rear end of the insulating body.

[0012] The fixing arm is disposed between the upper row terminal assembly and the lower row terminal assembly;

[0013] The fixing foot is formed by the docking arm protruding outward from the receiving cavity in the left-right direction;

[0014] A metal outer casing is fitted around the insulating body;

[0015] The snap-fit ​​notch is formed by the inner surface of the rear end of the insulating body being recessed outward from the receiving cavity in the left-right direction;

[0016] The fixing foot is correspondingly engaged within the buckle notch.

[0017] Furthermore, the buckle notch extends through the inner and outer surfaces of the rear end of the insulating body in a left-right direction, and the fixing foot passes through the buckle notch and is welded and fixed to the inner wall surface of the rear end of the metal shell.

[0018] Furthermore, the buckle notch opens rearward.

[0019] Furthermore, the connection position between the rear end of each elastic arm and the fixed arm protrudes outward from the receiving cavity in the left-right direction to form a welding part. The welding part passes through the insulating body in the left-right direction and is welded and fixed to the inner wall of the metal shell at the corresponding position.

[0020] Furthermore, the insulating body has a clearance hole formed through the position corresponding to the elastic arm and the welded part in the left-right direction. The clearance hole extends in the front-back direction and is configured to accommodate the elastic deformation of the elastic arm in the left-right direction.

[0021] Furthermore, the metal outer shell is a tube with openings at both ends, including a main body section and an enlarged section integrally connected to the rear end of the main body section, wherein the width of the enlarged section in the left-right direction is greater than that of the main body section;

[0022] The insulating body has a socket segment corresponding to be coupled within the main body segment and a base segment corresponding to be coupled within the enlarged segment;

[0023] The buckle notch is formed in the base section;

[0024] The welded part is welded to the inner wall surface of the main body section near the enlarged section.

[0025] Furthermore, the docking arm includes a connecting portion formed by extending upward and backward from the rear ends of both sides of the fixed arm or the rear end of the elastic arm, a first grounding foot formed by extending further backward from the rear end edge of the connecting portion, and an extension portion that engages with the outer edge of the connecting portion.

[0026] The extension includes a base segment extending in a vertical direction, a second grounding pin extending rearward from the upper end of the rear end edge of the base segment, and a third grounding pin extending rearward from the lower end of the rear end edge of the base segment.

[0027] The fixing foot is formed by protruding outward from the middle position of the rear end edge of the base section in the left-right direction towards the outside of the receiving cavity.

[0028] Furthermore, it also includes: a mounting groove is formed by recessing the rear end face of the insulating body, the mounting groove being configured to accommodate the connecting portion, the base portion, the front end portion of the second grounding pin, and the front end portion of the third grounding pin;

[0029] The buckle notch communicates with the corresponding mounting groove in the left-right direction.

[0030] Furthermore, it also includes: a circuit board extending from back to front between the second grounding pin and the third grounding pin and stopping forward at the rear end face of the fixed pin;

[0031] The first grounding pin and the second grounding pin are electrically connected to one surface of the circuit board, and the third grounding pin is electrically connected to the other surface of the circuit board.

[0032] Furthermore, the upper terminal assembly also includes an upper insulating block that integrally connects multiple upper terminal pieces, and the lower terminal assembly also includes a lower insulating block that integrally connects multiple lower terminal pieces, with the fixing arm clamped between the upper and lower insulating blocks in the vertical direction;

[0033] Each of the aforementioned upper terminal members has an upper contact spring arm extending forward from an upper insulating block and an upper mating arm extending backward from an upper insulating block;

[0034] Each of the lower terminal members has a lower contact spring arm extending forward from the lower insulating block and a lower mating arm extending backward from the lower insulating block.

[0035] Compared with the prior art, the beneficial effect of this application is that it can improve the overall structural strength of the plug connector. Attached Figure Description

[0036] Figure 1 This is a three-dimensional schematic diagram of the plug connector of this application, specifically showing the three-dimensional schematic diagram after the plug connector and the mating substrate are combined.

[0037] Figure 2 This is a three-dimensional schematic diagram of the plug connector of this application, specifically showing a three-dimensional schematic diagram of the plug connector before it is assembled with the mating substrate.

[0038] Figure 3 This is a partial perspective view of the plug connector of this application, specifically showing a perspective view of the metal shell separating from the insulating body.

[0039] Figure 4 This is a three-dimensional schematic diagram of the plug connector of this application.

[0040] Figure 5 This is a front view of the plug connector of this application.

[0041] Figure 6 It is self Figure 5 A cross-sectional view along line AA in the middle.

[0042] Figure 7 yes Figure 6 The sectional view shown only illustrates the fit between the metal casing and the grounding component. Detailed Implementation

[0043] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] In the description of this application, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0045] Furthermore, for the sake of accuracy, all references to directions throughout this application shall be in the form of... Figure 1For reference, specifically: the X-axis direction is defined as the front-back direction (that is, the mating direction of the connector), where the positive X-axis direction is back; the Y-axis direction is defined as the up-down direction (that is, the thickness direction of the plug connector), where the positive Y-axis direction is up; the Z-axis direction is defined as the left-right direction (that is, the lateral direction of the plug connector).

[0046] For details, please refer to the reference. Figures 1 to 7 The diagram shows a plug connector disclosed in this application. The plug connector includes: an insulating body 1, an upper terminal assembly 2 integrated within the insulating body 1, a lower terminal assembly 3 integrated within the insulating body 1, a grounding component 4 integrated within the insulating body 1, and a metal outer shell 5 sleeved outside the insulating body 1. The insulating body 1 is integrally injection molded from insulating material, forming a receiving cavity 10 extending in the front-to-back direction. The front end of the receiving cavity 10 forms an insertion port (unlabeled) for inserting a mating connector, and the rear end of the receiving cavity 10 forms a mounting opening (unlabeled).

[0047] The metal outer shell 5 is tubular with openings at both ends, including a main body section 51 and an enlarged section 52 integrally connected to the rear end of the main body section 51. The width of the enlarged section 52 in the left-right direction is greater than that of the main body section 51. In this application, preferably, the metal outer shell 5 is formed by drawing and stretching a metal plate or metal tube, and the outer peripheral wall of the metal outer shell 5 is a seamless integral shape. The insulating body 1 has a socket section 11 corresponding to the main body section 51 and a base section 12 corresponding to the enlarged section 52. The outer peripheral shapes of the socket section 11 and the base section 12 of the insulating body 1 correspond to the inner peripheral shapes of the main body section 51 and the enlarged section 52 of the metal outer shell 5. During assembly, the insulating body 1 is inserted into the metal outer shell 5 from back to front.

[0048] Please refer to Figure 4As shown, the upper terminal assembly 2 includes a plurality of upper terminal pieces 21 arranged in a left-right direction and an upper insulating block 22 integrally joined together with the plurality of upper terminal pieces 21. The lower terminal assembly 3 includes a plurality of lower terminal pieces 31 arranged in a left-right direction and a lower insulating block 32 integrally joined together with the plurality of lower terminal pieces 31. The upper terminal assembly 2 is coupled to the upper space of the receiving cavity 10 of the insulating body 1, and the lower terminal assembly 3 is coupled to the lower space of the receiving cavity 10 of the insulating body 1. Each of the upper terminal pieces 21 forms an upper contact spring arm 211 extending forward from the upper insulating block 22 and an upper mating arm 212 extending backward from the upper insulating block 22. Each of the lower terminal pieces 31 forms a lower contact spring arm 311 extending forward from the lower insulating block 32 and a lower mating arm 312 extending backward from the lower insulating block 32. The plurality of upper contact spring arms 211 and the plurality of lower contact spring arms 311 correspond one-to-one in the vertical direction for elastic electrical contact with the mating connector. The plurality of upper mating arms 212 and the plurality of lower mating arms 312 are used for electrical contact with the mating substrate 6. The plug connector of this application is a standard architecture USB Type C plug connector, wherein the upper terminal 21 has twelve pins and the lower terminal 22 has twelve pins.

[0049] Please refer to the reference. Figures 1 to 7 As shown, the grounding component 4 is preferably formed by stamping and bending a metal plate, including a flat fixing arm 41 extending in the left-right direction, elastic arms 42 extending forward from the fixing arm 41 and disposed on the left and right sides of the receiving cavity 10, and two docking arms extending backward from the fixing arm 41 and protruding outside the insulating body 1. The two docking arms are respectively located on the left and right sides of the rear end of the insulating body 1. The fixing arm 41 is disposed between the upper row terminal assembly 2 and the lower row terminal assembly 3. In a preferred embodiment, the fixing arm 41 is sandwiched between the upper insulating block 22 and the lower insulating block 32 in the vertical direction. The upper row terminal assembly 2, the grounding component 4, and the lower row terminal assembly 3 are stacked and assembled in the vertical direction to form a whole, which is then inserted and assembled into the receiving cavity 10 of the insulating body 1 from back to front.

[0050] Furthermore, the connection position between the rear end of each elastic arm 42 and the fixed arm 41 protrudes outward in the left-right direction towards the receiving cavity 10 to form a welding portion 410. The welding portion 410 passes through the insulating body 1 in the left-right direction towards the outside of the receiving cavity 10 and is welded and fixed to the inner wall surface of the metal shell 5 at a corresponding position. In a preferred embodiment, the welding portion 410 is welded to the inner wall surface of the main body section 51 near the end of the enlarged section 52. Each docking arm includes a connecting portion 431 extending upward and backward from the rear ends of the two sides of the fixed arm 41 or the rear end of the elastic arm 42, a first grounding foot 432 extending further backward from the rear end edge of the connecting portion 431, and an extension portion 430 that engages with the outer edge of the connecting portion 431. The extension portion 430 includes a base segment 4301 extending in the vertical direction, a second grounding foot 4302 extending rearward from the upper end of the rear end edge of the base segment 4301, and a third grounding foot 4303 extending rearward from the lower end of the rear end edge of the base segment 4301. A fixing foot 44 is formed by protruding outward from the receiving cavity 10 in the left-right direction at the middle position of the rear end edge of the base segment 4301 in the vertical direction.

[0051] The rear end face of the insulating body 1 is recessed to form a mounting groove 103. When the upper row terminal assembly 2, the grounding member 4, and the lower row terminal assembly 3 are stacked and assembled in the vertical direction, the entire assembly is inserted from back to front into the receiving cavity 10 of the insulating body 1. The connecting part 431, the base section 4301, the front end of the second grounding foot 4302, and the front end of the third grounding foot 4303 are forward-receiving and limited within the mounting groove 103. The inner surface of the rear end of the insulating body 1 is recessed outward from the receiving cavity 10 in the left-right direction to form a snap-fit ​​notch 101. The snap-fit ​​notch 101 is open rearward. Specifically, the snap-fit ​​notch 101 is formed in the base section 12 and communicates with the corresponding mounting groove 103 in the left-right direction. In a preferred embodiment, the mounting groove 103 communicates with the rear end of the corresponding receiving cavity 10 in the left-right direction. The fixing foot 44 is correspondingly engaged in the snap-fit ​​notch 101 to limit and fix the docking arm and the insulating body 1. In a preferred embodiment, the snap-fit ​​notch 101 penetrates the inner and outer surfaces of the rear end of the insulating body 1 in a left-right direction. The fixing foot 44 passes through the snap-fit ​​notch 101 and is welded and fixed to the inner wall surface of the rear end of the metal shell 5, thereby fixing the connecting arm to the metal shell 5. Furthermore, the front end of the portion of the base section 12 of the insulating body 1 that protrudes from the insertion section 11 in a left-right direction stops at the inner rear end surface of the portion of the enlarged section 52 of the metal shell 5 that protrudes from the main body section 51 in a left-right direction.

[0052] Furthermore, in this application, the insulating body 1 has a clearance hole 102 formed through it at a position corresponding to the elastic arm 42 and the welding part 410 in the left-right direction. The clearance hole 102 extends in the front-back direction and is configured to accommodate the elastic deformation of the elastic arm 42 in the left-right direction. The front end portion of the elastic arm 42 protrudes into the receiving cavity 10 for elastic locking with the mating connector. During installation, the circuit board 6 is inserted from back to front between the second grounding pin 4302 and the third grounding pin 4303 and stops forward at the rear end face of the fixing pin 44. The first grounding pin 432 and the second grounding pin 4302 are electrically connected to one surface of the circuit board 6, and the third grounding pin 4303 is electrically connected to the other surface of the circuit board 6.

[0053] The design scheme of this application can achieve stable fixation between the insulating body 1, the grounding component 4 and the metal shell 5, while ensuring that the mating arm of the grounding component 4 is in the correct position and does not deviate. The overall structure of the plug connector has good strength and strong stability.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this design, and not to limit it. Although the design has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this design.

[0055] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plug connector, characterized in that, include: The insulating body (1) has a receiving cavity (10) that extends through the front and rear directions. The upper terminal assembly (2) is attached to the upper space of the receiving cavity (10) of the insulating body (1) and includes a plurality of upper terminal pieces (21) arranged in the left-right direction. The lower terminal assembly (3) is attached to the lower space of the receiving cavity (10) of the insulating body (1) and includes a plurality of lower terminal pieces (31) arranged in the left-right direction. The grounding component (4) includes a fixed arm (41) extending in the left-right direction, an elastic arm (42) extending forward from the fixed arm (41) and disposed on the left and right sides of the receiving cavity (10), and a docking arm extending backward from the fixed arm (41). The docking arm is provided in two and is located on the left and right sides of the rear end of the insulating body (1). The fixed arm (41) is disposed between the upper row terminal assembly (2) and the lower row terminal assembly (3); The fixing foot (44) is formed by the docking arm protruding outward from the receiving cavity (10) in the left-right direction; A metal outer shell (5) is fitted around the insulating body (1); The snap notch (101) is formed by the inner surface of the rear end of the insulating body (1) being recessed outward from the receiving cavity (10) in the left-right direction; The fixing foot (44) is correspondingly engaged in the buckle notch (101).

2. The plug connector according to claim 1, characterized in that: The buckle notch (101) extends through the inner and outer surfaces of the rear end of the insulating body (1) in the left-right direction. The fixing foot (44) passes through the buckle notch (101) and is welded and fixed to the inner wall of the rear end of the metal shell (5).

3. The plug connector according to claim 1 or 2, characterized in that: The buckle notch (101) opens backward.

4. The plug connector according to claim 1 or 2, characterized in that: The rear end of each elastic arm (42) and the connection position of the fixed arm (41) protrude outward from the receiving cavity (10) in the left-right direction to form a welding part (410). The welding part (410) passes through the insulating body (1) in the left-right direction and is welded and fixed to the inner wall of the metal shell (5) at the corresponding position.

5. The plug connector according to claim 4, characterized in that: The insulating body (1) has a clearance hole (102) formed through the position corresponding to the elastic arm (42) and the welded part (410) in the left-right direction. The clearance hole (102) extends in the front-back direction and is configured to allow the elastic arm (42) to elastically deform in the left-right direction.

6. The plug connector according to claim 4, characterized in that: The metal shell (5) is a tube with openings at both ends, including a main body section (51) and an enlarged section (52) integrally connected to the rear end of the main body section (51). The width of the enlarged section (52) in the left-right direction is greater than that of the main body section (51). The insulating body (1) has a socket section (11) corresponding to the main body section (51) and a base section (12) corresponding to the enlarged section (52). The snap notch (101) is formed in the base section (12); The welded part (410) is welded to the inner wall surface of the main body section (51) near the enlarged section (52).

7. The plug connector according to claim 1, characterized in that: The docking arm includes a connecting portion (431) extending upward and backward from the rear ends of the two sides of the fixed arm (41) or the rear end of the elastic arm (42), a first grounding foot (432) extending further backward from the rear end edge of the connecting portion (431), and an extension portion (430) that engages with the outer edge of the connecting portion (431). The extension (430) includes a base segment (4301) extending in the vertical direction, a second grounding pin (4302) extending rearward from the upper end position of the rear end edge of the base segment (4301), and a third grounding pin (4303) extending rearward from the lower end position of the rear end edge of the base segment (4301). The fixing foot (44) is formed by protruding outward from the middle position of the rear end edge of the base section (4301) in the left-right direction towards the outside of the receiving cavity (10).

8. The plug connector according to claim 7, characterized in that, Also includes: The rear end face of the insulating body (1) is recessed to form a mounting groove (103), which is configured to accommodate the connecting part (431), the base section part (4301), the front end part of the second grounding pin (4302), and the front end part of the third grounding pin (4303). The buckle notch (101) is connected to the corresponding mounting groove (103) in the left-right direction.

9. The plug connector according to claim 7, characterized in that, Also includes: The circuit board (6) extends from back to front between the second grounding pin (4302) and the third grounding pin (4303) and stops forward at the rear end face of the fixed pin (44); The first grounding pin (432) and the second grounding pin (4302) are electrically connected to one surface of the circuit board (6), and the third grounding pin (4303) is electrically connected to the other surface of the circuit board (6).

10. The plug connector according to claim 1, characterized in that: The upper terminal assembly (2) further includes an upper insulating block (22) that integrally combines multiple upper terminal pieces (21), and the lower terminal assembly (3) further includes a lower insulating block (32) that integrally combines multiple lower terminal pieces (31). The fixing arm (41) is clamped between the upper insulating block (22) and the lower insulating block (32) in the vertical direction. Each of the upper terminal members (21) is formed with an upper contact spring arm (211) extending forward from the upper insulating block (22) and an upper docking arm (212) extending backward from the upper insulating block (22). Each of the lower terminal members (31) is formed with a lower contact spring arm (311) extending forward from the lower insulating block (32) and a lower mating arm (312) extending backward from the lower insulating block (32).

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