Electrical connector

Abstract

The present invention discloses an electrical connector, which is used to be installed on a circuit board. The electrical connector includes a terminal module and a shielding shell covering the terminal module. The terminal module includes an insulating body, a first row of conductive terminals, a second row of conductive terminals and a shielding member. The terminal module includes a base and a tongue plate extending forward from the base. The first row of conductive terminals are exposed on the upper surface of the tongue plate, and the second row of conductive terminals are exposed on the lower surface of the tongue plate. The shielding member is located between the first row of conductive terminals and the second row of conductive terminals. The shielding member includes at least two surfaces exposed on the base, and the shielding shell is in electrical contact with at least two surfaces of the shielding member exposed on the base.

Description

Technical Field

[0001] The present invention relates to an electrical connector. Background Art

[0002] The electrical connectors in the prior art are used for welding to a circuit board. The electrical connector includes a terminal module and a shielding housing covering the terminal module. The terminal module includes a base and a tongue plate extending forward from the base. The tongue plate includes an upper surface and a lower surface. The shielding housing covers the outside of the terminal module and forms a docking cavity with a forward opening with the tongue plate. The docking cavity is for a docking connector to be inserted. The terminal module includes an insulating body and a first terminal group, a second terminal group, and a shielding member held by the insulating body. The first terminal group and the second terminal group are arranged in the up-down direction, and the shielding member is located between the first terminal group and the second terminal group. The first terminal group includes a first insulator and a first row of conductive terminals held by the first insulator. The contact portions of the first row of conductive terminals are exposed on the upper surface of the tongue plate. The second terminal group includes a second insulator and a second row of conductive terminals held by the second insulator. The contact portions of the second row of conductive terminals are exposed on the lower surface of the tongue plate. The front end of the shielding member is exposed on the side surface of the tongue plate. The shielding housing includes an inner housing, an upper housing, and a lower housing. The inner housing covers the outside of the terminal module and forms a docking cavity with a forward opening with the tongue plate. The upper housing covers the upper side of the inner housing and is electrically connected to the inner housing by spot welding. The lower housing covers the lower side of the inner housing and is electrically connected to the inner housing by spot welding. The reliability of the shielding effect of this electrical connector is poor.

[0003] In view of this, the present invention proposes a new electrical connector. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention aims to provide an electrical connector with a stable shielding effect.

[0005] The present invention is realized by the following technical solutions:

[0006] An electrical connector for mounting to a circuit board, the electrical connector includes a terminal module and a shielding housing covering the terminal module. The terminal module includes an insulating body, a first row of conductive terminals, a second row of conductive terminals, and a shielding member. The terminal module includes a base and a tongue plate extending forward from the base. The first row of conductive terminals is exposed on the upper surface of the tongue plate. The second row of conductive terminals is exposed on the lower surface of the tongue plate. The shielding member is located between the first row of conductive terminals and the second row of conductive terminals. The shielding member includes at least two surfaces exposed on the base. The shielding housing is in electrical contact with at least two of the surfaces of the shielding member exposed on the base.

[0007] Further, the terminal module includes a first terminal group and a second terminal group. Both the first terminal group and the second terminal group are held by the insulating body. The first terminal group includes a first insulator, the first row of conductive terminals held by the first insulator, and the shielding member. The second terminal group includes a second insulator and the second row of conductive terminals held by the second insulator.

[0008] Further, the first insulator includes a first rear insulator. The first rear insulator is integrally formed at the rear end portions of the first row of conductive terminals and the rear end portion of the shielding member. The first rear insulator includes a main body portion and additional portions located on both sides of the main body portion. The rear end portion of the first row of conductive terminals is held by the main body portion. The shielding member includes an extension portion held by the first rear insulator. The extension portion extends to the additional portion and wraps around the outside of the additional portion to form at least two surfaces of the shielding member exposed from the base portion. The shielding housing is welded to the extension portion.

[0009] Further, the shielding housing includes a first outer housing located on the upper side of the terminal module and a second outer housing located on the lower side of the terminal module. The first outer housing includes a first attachment portion and a first overlapping portion extending from the first attachment portion. The second outer housing includes a second attachment portion and a second overlapping portion extending from the second attachment portion. Both the first overlapping portion and the second overlapping portion are welded to the extension portion.

[0010] Further, the extension portion includes a fixing portion and a covering portion extending from the fixing portion. The fixing portion is held by the main body portion. The covering portion wraps around the additional portion. The covering portion includes an upper wall, a lower wall, and a connecting wall connecting the upper wall and the lower wall. The upper wall is attached to the upper surface of the additional portion. The lower wall is attached to the lower surface of the additional portion. The connecting wall is attached to the front surface of the additional portion. The first overlapping portion is welded to the upper wall, and the second overlapping portion is welded to the lower wall.

[0011] Further, the shielding housing further includes an inner housing. The first outer housing is disposed on the upper side of the inner housing, and the second outer housing is disposed on the lower side of the inner housing. The inner housing is in a cylindrical shape. Both the first attachment portion and the second attachment portion are welded to the inner housing.

[0012] Further, the main body portion is located between the first row of conductive terminals and the second row of conductive terminals. The main body portion is held by the tongue plate and protrudes from the side surface of the tongue plate.

[0013] Further, the first terminal group includes two shielding members. The two shielding members are symmetrically arranged in the lateral direction perpendicular to the front-rear direction.

[0014] Further, the terminal module further includes an annular protrusion formed by protruding from the tongue plate. The annular protrusion is disposed adjacent to the base. A waterproof member is disposed between the annular protrusion and the base. The front surface of the waterproof member abuts against the annular protrusion, and the rear surface of the waterproof member abuts against the base.

[0015] Further, the inner housing includes a first inner housing and a second inner housing. The first inner housing covers the annular protrusion. The rear wall of the first inner housing abuts against the waterproof member. The second inner housing covers the outside of the first inner housing and the waterproof member and forms a docking cavity with a forward opening with the tongue plate. The first attachment portion and the second attachment portion are both welded to the second inner housing.

[0016] Compared with the prior art, the first outer housing and the second outer housing of the electrical connector of the present invention are electrically connected to the second inner housing by spot welding. At the same time, the first outer housing and the second outer housing are also electrically connected to the shielding member by spot welding, ensuring the stability of the shielding effect of the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the electrical connector in the present invention;

[0018] Figure 2 is Figure 1 a schematic structural diagram of the electrical connector shown from another perspective;

[0019] Figure 3 is Figure 2 a three-dimensional exploded view of the electrical connector shown;

[0020] Figure 4 is Figure 3 a three-dimensional exploded view of the terminal module, the waterproof member and the first inner housing in the electrical connector shown;

[0021] Figure 5 is Figure 4 a schematic structural diagram of the terminal module shown from another perspective;

[0022] Figure 6 is Figure 5 a three-dimensional exploded view of the terminal module shown;

[0023] Figure 7 is Figure 6 a schematic structural diagram of the first terminal group and the second terminal group shown from another perspective;

[0024] Figure 8 is Figure 7 a three-dimensional exploded view of the first terminal group and the second terminal group shown. DETAILED DESCRIPTION OF THE INVENTION

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Please refer to Figures 1 to 8 , which is an electrical connector 100 according to the present invention, and is used to be mounted on a circuit board (not shown). The electrical connector 100 includes a terminal module 10 and a shielding housing 20 covering the terminal module 10. The terminal module 10 includes a base portion 11 and a tongue plate 12 extending forward from the base portion 11. The tongue plate 12 includes an upper surface and a lower surface. The shielding housing 20 covers the outside of the terminal module 10 and forms a docking cavity 30 with a forward opening with the tongue plate 12. The docking cavity 30 is for inserting a docking connector. The terminal module 10 includes an insulating body 13 and a first terminal group 40 and a second terminal group 50 held on the insulating body 13. The first terminal group 40 and the second terminal group 50 are assembled together in the up and down direction. The first terminal group 40 includes a first row of conductive terminals, two shielding members 60, a first front insulator 41 and a first rear insulator 42. The first front insulator 41 is integrally formed on the front end portions of the first row of conductive terminals and the two shielding members 60. The first rear insulator 42 is integrally formed on the rear end portions of the first row of conductive terminals and the two shielding members 60. The two shielding members 60 are held on both sides of the first front insulator 41 and the first rear insulator 42 in a lateral direction perpendicular to the front and rear direction. The two shielding members 60 are symmetrically arranged in the lateral direction. The second terminal group 50 includes a second row of conductive terminals, a second front insulator 51 and a second rear insulator 52. The second front insulator 51 is integrally formed on the front end portion of the second row of conductive terminals. The second rear insulator 52 is integrally formed on the rear end portion of the second row of conductive terminals. The insulating body 13 is integrally formed on the first terminal group 40 and the second terminal group 50 to form the terminal module 10.

[0027] The first row of conductive terminals and the second row of conductive terminals are arranged in alignment in the up-and-down direction. The first row of conductive terminals includes eight first conductive terminals. Each first conductive terminal includes a first contact portion exposed on the upper surface of the tongue plate 12, a first holding portion held within the base portion 11, and a first welding portion extending rearward from the first holding portion. The first welding portion is used for welding to a circuit board. The eight first conductive terminals include two first ground terminals, two first power terminals located inside the two first ground terminals, and four first signal terminals located inside the two first power terminals. The second row of conductive terminals includes eight second conductive terminals. Each second conductive terminal includes a second contact portion exposed on the lower surface of the tongue plate 12, a second holding portion held within the base portion 11, and a second welding portion extending rearward from the second holding portion. The second welding portion is used for welding to a circuit board. The eight second conductive terminals include two second ground terminals, two second power terminals located inside the two second ground terminals, and four second signal terminals located inside the two second power terminals. The first contact portions of the eight first conductive terminals are arranged in a row in the horizontal direction, and the second contact portions of the eight second conductive terminals are also arranged in a row in the horizontal direction. A row of first contact portions and a row of second contact portions are arranged in one-to-one alignment in the up-and-down direction. The first welding portions of the eight first conductive terminals and the second welding portions of the eight second conductive terminals are arranged in a row in the horizontal direction. The first welding portions and the second welding portions are arranged at intervals and are both welded to the circuit board in a surface-mounting manner.

[0028] The terminal module 10 further includes an annular protruding portion 14 protruding from the tongue plate 12. The annular protruding portion 14 is disposed adjacent to the base portion 11. A waterproof member 70 is disposed between the annular protruding portion 14 and the base portion 11. The front surface of the waterproof member 70 abuts against the annular protruding portion 14, and the rear surface of the waterproof member 70 abuts against the base portion 11. The waterproof member 70 is formed by solidification of waterproof glue. The shielding housing 20 includes a first inner housing 21, a second inner housing 22, a first outer housing 23, and a second outer housing 24. The first inner housing 21 covers the annular protruding portion 14, and the rear wall of the first inner housing 21 abuts against the waterproof member 70. The second inner housing 22 is cylindrical and penetrates through in the front and rear directions. The second inner housing 22 covers the outside of the first inner housing 21 and the waterproof member 70 and forms the docking cavity 30 with a forward opening with the tongue plate 12. The second inner housing 22 is provided with a flange 25 formed by turning outwards from its front edge. The electrical connector 100 further includes a waterproof ring 80. The waterproof ring 80 is disposed around the front portion of the second inner housing 22, and the front surface of the waterproof ring 80 abuts against the flange 25. The first outer housing 23 is mounted on the upper side of the second inner housing 22. The first outer housing 23 includes a first attaching portion 230, two first connecting feet 231 extending downward from both sides of the first attaching portion 230, and two second connecting feet 232 extending downward from both sides of the first attaching portion 230. The two first connecting feet 231 are symmetrically arranged, and the two second connecting feet 232 are also symmetrically arranged. The first attaching portion 230 abuts against the second inner housing 22, and electrical connection between the first attaching portion 230 and the second inner housing 22 is achieved by spot welding. The first connecting feet 231 are located in front of the second connecting feet 232. The first connecting feet 231 are used for welding to the welding holes of the circuit board. After the second connecting feet 232 penetrate through the base portion 11, they are also used for welding to the welding holes of the circuit board. The second outer housing 24 is mounted on the lower side of the second inner housing 22. The second outer housing 24 includes a second attaching portion 240 and two mounting portions 241 extending upward from both sides of the second attaching portion 240. The second attaching portion 240 abuts against the second inner housing 22, and electrical connection between the second attaching portion 240 and the second inner housing 22 is achieved by spot welding. The two mounting portions 241 are symmetrically arranged and are mounted on the base portion 11.

[0029] The shielding member 60 includes a body portion 61 held by the first front insulator 41 and an extension portion 62 held by the first rear insulator 42. The body portion 61 is located between the first row of conductive terminals and the second row of conductive terminals aligned in the up-and-down direction. The body portion 61 is held by the tongue plate 12 and protrudes from the side surface of the tongue plate 12. The extension portion 62 includes a fixing portion 63 and a covering portion 64 extending from the fixing portion 63. The first rear insulator 42 includes a main body portion 421 and additional portions 422 located on the lateral sides of the main body portion 421. The rear end portions of the first row of conductive terminals are held by the main body portion 421, the fixing portion 63 of the extension portion 62 of the shielding member 60 is held by the main body portion 421, and the covering portion 64 covers the additional portions 422. The covering portion 64 includes an upper wall 65, a lower wall 66, and a connecting wall 67 connecting the upper wall 65 and the lower wall 66. The upper wall 65 adheres to the upper surface of the additional portion 422, the lower wall 66 adheres to the lower surface of the additional portion 422, and the connecting wall 67 adheres to the front surface of the additional portion 422. The first outer housing 23 further includes two first overlapping feet 233 extending outward from both sides of the first attaching portion 230. The first overlapping feet 233 are located between the first connecting portion 231 and the second connecting portion 232 in the front-and-back direction. The first overlapping feet 233 overlap with the upper wall 65 of the covering portion 64 of the extension portion 62 of the shielding member 60 and are electrically connected together by spot welding. The second outer housing 24 further includes two second overlapping feet 242 extending outward from both sides of the second attaching portion 240. The second overlapping feet 242 overlap with the lower wall 66 of the covering portion 64 of the extension portion 62 of the shielding member 60 and are electrically connected together by spot welding.

[0030] In the electrical connector 100 of the present invention, the first outer housing 23 and the second outer housing 24 are electrically connected to the second inner housing 22 by spot welding. At the same time, the first outer housing 23 and the second outer housing 24 are also electrically connected to the two shielding members 60 by spot welding, ensuring the stability of the shielding effect of the electrical connector 100.

[0031] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An electrical connector, used for mounting on a circuit board, the electrical connector comprising a terminal module and a shielding shell covering the terminal module, the terminal module comprising an insulating body, a first terminal group and a second terminal group fixed in the insulating body, and a shielding member, the first terminal group is provided with a first row of conductive terminals, and the second terminal group is provided with a second row of conductive terminals; The first terminal group and the second terminal group are assembled together in the up-down direction, and the insulating body is integrally formed with the first terminal group and the second terminal group to form the terminal module; The terminal module comprises a base and a tongue plate extending forward from the base, the first row of conductive terminals are exposed on the upper surface of the tongue plate, the second row of conductive terminals are exposed on the lower surface of the tongue plate, and the shielding member is located between the first row of conductive terminals and the second row of conductive terminals, characterized in that: The shielding member includes at least two surfaces exposed from the base, and the shielding shell is in electrical contact with at least two surfaces of the shielding member exposed from the base; The insulating body further comprises an annular protrusion, the annular protrusion is arranged adjacent to the base, and the annular protrusion surrounds the first terminal group and the second terminal group; A waterproof member is provided between the annular protrusion and the base, the front surface of the waterproof member abuts against the annular protrusion, and the rear surface of the waterproof member abuts against the base; The shielding shell includes a first inner shell and a second inner shell. The first inner shell is wrapped around the outer periphery of the annular protrusion and covers the front end surface of the annular protrusion. The rear wall of the first inner shell is against the waterproof component. The second inner shell is wrapped around the outside of the first inner shell and the waterproof component and forms a forward-opening docking cavity with the tongue plate.

2. The electrical connector according to claim 1, characterized in that: The first terminal set includes a first insulator, the first row of conductive terminals held in the first insulator, and the shielding member, and the second terminal set includes a second insulator and the second row of conductive terminals held in the second insulator.

3. The electrical connector according to claim 2, characterized in that: The first insulator includes a first rear insulator, which is integrally formed with the rear end portion of the first row of conductive terminals and the rear end portion of the shielding member, the first rear insulator includes a main body and additional portions located on both sides of the main body, the rear end portion of the first row of conductive terminals is fixed to the main body, the shielding member includes an extension portion fixed to the first rear insulator, the extension portion extends to the additional portion and is covered on the outside of the additional portion to form at least two surfaces of the shielding member exposed at the base, and the shielding shell is welded to the extension portion.

4. The electrical connector according to claim 3, characterized in that: The shielding shell includes a first shell body located on the upper side of the terminal module and a second shell body located on the lower side of the terminal module, the first shell body includes a first attachment portion and a first lap portion extending from the first attachment portion, the second shell body includes a second attachment portion and a second lap portion extending from the second attachment portion, and the first lap portion and the second lap portion are both welded to the extension portion.

5. The electrical connector according to claim 4, characterized in that: The extension portion includes a fixing portion and a covering portion extending from the fixing portion, the fixing portion is fixed to the main body portion, the covering portion covers the additional portion, the covering portion includes an upper wall, a lower wall and a connecting wall connecting the upper wall and the lower wall, the upper wall is attached to the upper surface of the additional portion, the lower wall is attached to the lower surface of the additional portion, the connecting wall is attached to the front surface of the additional portion, the first overlapping portion is welded to the upper wall, and the second overlapping portion is welded to the lower wall.

6. The electrical connector according to claim 3, characterized in that: The shielding member further includes a body portion, the body portion is located between the first row of conductive terminals and the second row of conductive terminals, the body portion is fixed on the tongue plate and protrudes out of a side surface of the tongue plate.

7. The electrical connector according to claim 6, characterized in that: The first terminal group includes two shielding members, and the two shielding members are symmetrically arranged in a transverse direction perpendicular to the front-rear direction.

8. The electrical connector according to claim 4, characterized in that: The first attaching portion and the second attaching portion are both welded to the second inner shell.

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