Electric connector

Abstract

An electric connector comprises an insulation body, an upper row of conductive terminals, a lower row of conductive terminals and a metal shielding sheet, the upper row of conductive terminals and the lower row of conductive terminals are fixedly held on the insulation body, the metal shielding sheet is fixedly held on the insulation body, located between the two rows of conductive terminals in the vertical direction and used for reducing signal interference between the two rows of conductive terminals, and the insulation body comprises a base and a tongue plate formed by extending forwards from the base. Each conductive terminal comprises a contact part exposed on the butt joint surface arranged on the tongue plate, a tail part extending out of the base and a connecting part for connecting the contact part and the tail part, adjacent conductive terminals of each row of conductive terminals are connected through a material bridge in a semi-finished product of the electric connector, and adjacent conductive terminals of each row of conductive terminals are connected through a material bridge in a finished product of the electric connector. A cutting part left after the material bridge is cut and removed is arranged between the adjacent conductive terminals of each row of conductive terminals, and the metal shielding sheet is provided with an abdicating groove for abdicating the cutting part to avoid short circuit between the cutting part and the metal shielding sheet at the position corresponding to the cutting part. The abdicating groove is arranged on the metal shielding sheet, so that the short-circuit fire of the electric connector can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to an electrical connector, in particular to an electrical connector that can be inserted in both forward and reverse directions.

Background Art

[0002] In the prior art, during the manufacturing process of an electrical connector, two rows of conductive terminals are usually connected by a strip at the front end and the rear end. In order to keep the conductive terminals in a straight state when insulating plastic is molded outside the conductive terminals, the conductive terminals need to be connected by a bridge. Considering the signal interference between the signal terminals in the two rows of conductive terminals, a metal shielding sheet needs to be provided between the two rows of conductive terminals. However, the finished product of the electrical connector will cut off the bridge between adjacent conductive terminals and leave a cut-off part. The end of the cut-off part is likely to be short-circuited with the metal shielding sheet, resulting in a fire.

[0003] Therefore, it is necessary to improve the existing electrical connector to overcome the above defects.

Content of the Utility Model

[0004] The purpose of the utility model is to provide an electrical connector with reliable strength and good appearance.

[0005] The purpose of the utility model is achieved by the following technical solutions: An electrical connector includes an insulating body, upper and lower rows of conductive terminals fixed on the insulating body, and a metal shielding sheet fixed on the insulating body and located between the two rows of conductive terminals in the up and down direction to reduce signal interference between the two rows of conductive terminals. The insulating body includes a base and a tongue plate extending forward from the base. The conductive terminal includes a contact part exposed on the docking surface provided on the tongue plate, a tail extending out of the base, and a connecting part connecting the contact part and the tail. Between adjacent conductive terminals in each row of conductive terminals, there is a cut-off part left after cutting off the bridge connecting adjacent conductive terminals in the semi-finished product. The metal shielding sheet is provided with a relief groove corresponding to the cut-off part to allow the cut-off part to pass through and avoid short-circuiting between the cut-off part and the metal shielding sheet.

[0006] Further, the relief groove is a long strip-shaped groove extending in the transverse direction perpendicular to the front and rear direction to cover the cut-off parts between adjacent conductive terminals in the two rows of conductive terminals.

[0007] Further, each row of the conductive terminals includes two grounding terminals located on the outside, two power terminals located between the two grounding terminals, and eight signal terminals. The two rows of conductive terminals are arranged in reverse symmetry.

[0008] Further, the tongue plate includes a thickened portion extending forward from the base and a tongue portion extending forward from the thickened portion. The contact portion is exposed on the docking surface of the tongue portion. The connecting portions of the two rows of conductive terminals are embedded in the thickened portion and the base. The conductive terminals are provided with the cutting portions at the connecting portions corresponding to the thickened portion.

[0009] Further, the insulating body includes two insulators and a covering body which are respectively injection molded on two rows of conductive terminals to form two terminal modules. The metal shielding sheet is clamped between the two terminal modules. The insulator is provided with a plurality of cutting holes for the mold core to insert and cut a plurality of the material bridges. The covering body is injection molded outside the two terminal modules and the metal shielding sheet.

[0010] Further, the electrical connector includes a shielding housing fixed outside the insulating body. The base includes a base portion and an installation portion extending backward from the rear end upper direction of the base portion. The connecting portion extends out of the installation portion to form the tail portion. The shielding housing includes a cylindrical portion surrounding the base portion and forming a docking cavity with the tongue plate, a cover portion extending backward from the top wall and the side wall of the cylindrical portion and covering the installation portion downward, and a rear baffle extending downward from the cover portion and disposed at the rear end of the installation portion.

[0011] Further, the metal shielding sheet includes a first flat plate portion disposed on the tongue plate, an inclined plate portion extending upward obliquely from the rear end of the first flat plate portion, a second flat plate portion extending backward from the rear end of the inclined plate portion and disposed on the installation portion, and a vertical plate portion extending downward from the rear end of the second flat plate portion. The tails of the two rows of conductive terminals are arranged in two rows in the front-rear direction. The vertical plate portion is located between the tails of the two rows of conductive terminals in the front-rear direction.

[0012] Further, the relief groove is disposed on the first flat plate portion. The second flat plate portion is provided with a first through groove. The installation portion is provided with a second through groove exposing the connecting portion and communicating with the first through groove. The cylindrical portion forms a receiving cavity communicating with the second through groove at the rear end of the base portion. The electrical connector includes a sealing rubber plate disposed in the receiving cavity and blocking the first through groove and the second through groove.

[0013] Further, a closed interference protrusion protrudes into the docking cavity from the top wall of the cylindrical portion. The bottom wall of the cylindrical portion is torn to form an elastic abutting arm in the docking cavity. A waterproof film is attached to the bottom wall at the corresponding position of the elastic abutting arm.

[0014] Furthermore, the shielding housing further includes a sub-housing, which includes a bottom plate welded and fixed to the bottom wall, side plates extending upward from both sides of the bottom plate and located on both sides of the side wall, and a rear plate extending upward from the rear end of the bottom plate and located at the rear end of the bottom wall. The side plates are folded downward to form mounting feet.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the metal shielding sheet of the electrical connector is provided with a relief groove at the cutting part left after the bridge cutting of adjacent conductive terminals, which can effectively prevent the conductive terminals from being short-circuited through the metal shielding sheet, thereby effectively preventing the electrical connector from catching fire and being damaged.

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the electrical connector of the utility model.

[0017] Figure 2 is Figure 1 a perspective view from another angle.

[0018] Figure 3 is an exploded perspective view of the electrical connector of the utility model.

[0019] Figure 4 is Figure 5 an exploded perspective view from another angle.

[0020] Figure 5 is a top view of the conductive terminal of the electrical connector of the utility model.

[0021] Figure 6 is a partial exploded perspective view of the electrical connector of the utility model.

[0022] Figure 7 is Figure 6 an exploded perspective view from another angle.

[0023] Figure 8 is another partial exploded perspective view of the electrical connector of the utility model.

[0024] Figure 9 is Figure 6 a top view after the components are assembled.

[0025] Figure 10 is Figure 8 a cross-sectional schematic view after removing the cladding.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Please refer to Figures 1 to 10As shown in the figure, the present utility model provides an electrical connector 100, which includes an insulating body 1, upper and lower rows of conductive terminals 2 fixed to the insulating body 1, a metal shielding sheet 3 fixed to the insulating body 1 and located between the two rows of conductive terminals 2 in the up and down direction for reducing signal interference between the two rows of conductive terminals, a shielding housing 4 fixed outside the insulating body 1, and a waterproof rubber sheet 5 arranged behind the insulating body 1 for sealing the gap between the insulating body 1 and the shielding housing 4.

[0027] The insulating body 1 is injection molded on the conductive terminals 2. The insulating body 1 includes a base 11 and a tongue plate 12 extending forward from the base 11. The shielding housing 4 is annularly fixed to the base 11 and forms a docking cavity 40 with the tongue plate 12. The tongue plate 12 is provided with opposite docking surfaces 120 in the up and down direction. The conductive terminal 2 includes a contact portion 21 exposed on the docking surface 120 of the tongue plate 12, a tail portion 23 extending out of the base 11, and a connecting portion 22 connecting the contact portion 21 and the tail portion 23.

[0028] In the semi-finished product of the electrical connector 100, the adjacent conductive terminals in each row of conductive terminals 2 are connected by a runner bridge (not shown). The runner bridge (not shown) can make the part between the front end and the rear end of each row of conductive terminals 2 in a straightened state, which is convenient for injection molding the insulating body 1. In the finished product of the electrical connector 100, the runner bridge (not shown) between the adjacent conductive terminals in each row of conductive terminals 2 will be cut and removed. At this time, a cut-off portion 201 will be left after the runner bridge (not shown) between the adjacent conductive terminals 2 is cut and removed. The metal shielding sheet 3 is provided with a relief groove 301 at the position corresponding to the cut-off portion 201 to allow the cut-off portion 201 to pass through and prevent the cut-off portion 201 from being short-circuited with the metal shielding sheet 3.

[0029] The insulating body 1 includes two insulators 101 and a coating body 102 that are respectively injection molded on the two rows of conductive terminals 2 to form two terminal modules 10. The metal shielding sheet 3 is clamped between the two terminal modules 10. The coating body 102 is injection molded outside the two terminal modules 10 and the metal shielding sheet 3. The two insulators 101 are provided with cutting holes 1011 at the positions corresponding to the runner bridges (not shown) between the adjacent conductive terminals in each row of conductive terminals 2. These cutting holes 1011 are used for inserting a mold core (not shown) to cut several runner bridges (not shown). The cutting holes 1011 will be blocked when the coating body 102 is injection molded.

[0030] The base 11 of the insulating body 1 includes a base portion 111 and a mounting portion 112 extending rearward from the upper end of the rear end of the base portion 111. The tongue plate 12 includes a thickening portion 121 extending forward from the base portion 111 of the base 11 and a tongue portion 122 extending forward from the thickening portion 121. The contact portion 21 is exposed on the docking surface 120 of the tongue portion 122, the connecting portion 22 is embedded in the thickening portion 121, the base portion 111 and the mounting portion 112, and the tail portion 23 extends out of the mounting portion 112. The metal shielding sheet 3 includes a first flat plate portion 31 provided on the tongue plate 12, an inclined plate portion 32 provided on the base portion 111 extending obliquely upward from the rear end of the first flat plate portion 31, a second flat plate portion 33 provided on the mounting portion 112 extending rearward from the rear end of the inclined plate portion 32, and a vertical plate 34 extending downward from the rear end of the second flat plate portion 33. The vertical plate 34 is located between the tail portions 23 of two rows of conductive terminals 2 in the front-rear direction. The vertical plate 34 is spaced between the signal terminals S in two rows of conductive terminals 2 in the lateral direction perpendicular to the front-rear direction. The metal shielding sheet 3 further includes a pair of pins 35 extending from the rear end of the second flat plate portion 33 and located on the lateral sides of the vertical plate 34. The pair of pins 35 are located on the lateral outer sides of the two ground terminals G in the lateral direction.

[0031] Each row of conductive terminals 2 includes two ground terminals G located on the outside, two power terminals P located between the two ground terminals G, and eight signal terminals S. The two rows of conductive terminals 2 are arranged in reverse symmetry. The ground terminals G, the power terminals S, and the power terminals P are connected by a material bridge (not shown). The relief groove 301 is a long strip-shaped groove extending in the lateral direction to cover the cut portion 201 left after cutting the material bridge (not shown) between adjacent conductive terminals of the two rows of conductive terminals 2. Specifically, the cut portion 201 is provided at the connecting portion 22 corresponding to the thickening portion 121 of the adjacent conductive terminals of the two rows of conductive terminals 2. Correspondingly, the first flat plate portion 31 is provided with the long strip-shaped relief groove 301.

[0032] The shielding housing 4 includes a main housing 401 and a sub-housing 402. The main housing 401 includes a cylindrical portion 41 that is annularly fixed to the base portion 111 and forms a docking cavity 40 with the tongue plate 12, a cover portion 42 that extends backward from the top wall 411 and the side wall 412 of the cylindrical portion 41 and covers the mounting portion 112 downward, and a rear baffle 43 that extends downward from the rear end of the cover portion 42 and is disposed at the rear end of the mounting portion 112. The cover portion 42 includes a top portion 421 and side portions 422 that extend downward from the transverse two sides of the top portion 421. The rear baffle 43 extends downward from the top portion 421. The side portions 422 include support pieces 4221 that are bent inward to support the lower surface of the mounting portion 112 and mounting pieces 4222 that extend downward and are mounted on a circuit board (not shown). The sub-housing 402 includes a bottom plate 44 that is welded and fixed to the bottom wall 413 of the cylindrical portion 41, side plates 45 that extend upward from both sides of the bottom plate 44 and are located on both sides of the side wall 412, and a rear plate 46 that extends upward from the rear end of the bottom plate 44 and is located at the rear end of the bottom wall 413. The side plates 45 are further folded downward to form mounting legs 451 that are mounted on a circuit board (not shown). A closed interference protrusion 4111 protrudes into the docking cavity 40 from the top wall 411 of the cylindrical portion 41, and an elastic abutting arm 4131 is torn from the bottom wall 413 of the cylindrical portion into the docking cavity 40. The interference protrusion 4111 and the elastic abutting arm 4131 are used to abut a docking housing (not shown) after a docking connector (not shown) is inserted into the docking cavity 40. Considering the waterproofing of the electrical connector 100, a waterproof film 6 is provided on the bottom wall 413 corresponding to the elastic abutting arm 4131, and the sub-housing 402 is welded while avoiding the waterproof film 6.

[0033] The second flat portion 33 is provided with a first through groove 331. The mounting portion 112 is provided with a second through groove 1121 that exposes the connecting portion 22 and communicates with the first through groove 331. The cylindrical portion 41 forms a receiving cavity 410 at the rear end of the base portion 111. The second through groove 1121 communicates with the receiving cavity 410 in the vertical direction. After waterproof material is poured into the receiving cavity 410, it will fill the receiving cavity 410 and further flow into the first through groove 331 and the second through groove 1121 to form the waterproof rubber plate 5. The waterproof rubber plate 5 can increase the bonding force with the cylindrical portion 41 by using the first through groove 331 and the second through groove 1121.

[0034] The above are only some embodiments of the present invention, not all embodiments. Any equivalent changes made by those of ordinary skill in the art to the technical solutions of the present invention by reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. An electrical connector, comprising an insulating body, upper and lower rows of conductive terminals held by the insulating body, and a metal shielding sheet held by the insulating body and located between the two rows of conductive terminals in the up-down direction for reducing signal interference between the two rows of conductive terminals, the insulating body comprising a base and a tongue plate extending forward from the base, the conductive terminal comprising a contact portion exposed to a mating surface provided on the tongue plate, a tail portion extending out of the base, and a connecting portion connecting the contact portion and the tail portion, characterized in that: Between adjacent conductive terminals in each row of conductive terminals, there is a cutting portion left after cutting and removing the material bridge connecting adjacent conductive terminals in the semi-finished product, and the metal shielding sheet is provided with a making way groove corresponding to the cutting portion to make way for the cutting portion to avoid short circuit between the cutting portion and the metal shielding sheet.

2. The electrical connector according to claim 1, wherein: The clearance groove is a long strip groove extending in a transverse direction perpendicular to the front-rear direction to cover the cut-off portion between adjacent conductive terminals of two rows of conductive terminals.

3. The electrical connector according to claim 1, wherein: Each row of the conductive terminals includes two grounding terminals located at the outside, two power terminals located between the two grounding terminals, and eight signal terminals. The two rows of conductive terminals are arranged in reverse symmetry.

4. The electrical connector according to claim 1, wherein: The tongue plate includes a thickened portion extending forward from the base and a tongue portion extending forward from the thickened portion, the contact portion is exposed at the mating surface of the tongue portion, the connecting portions of two rows of conductive terminals are buried in the thickened portion and the base, and the cutting portion is provided at the connecting portion of the conductive terminal corresponding to the thickened portion.

5. The electrical connector according to claim 4, wherein: The insulating body includes two insulators and a covering body which are respectively injection molded on two rows of conductive terminals to form two terminal modules. The metal shielding sheet is clamped between the two terminal modules. The insulator is provided with a plurality of cutting holes for inserting a mold core to cut a plurality of the material bridges. The covering body is injection molded outside the two terminal modules and the metal shielding sheet.

6. The electrical connector according to claim 1, wherein: The electrical connector includes a shielding shell fixed outside the insulating body, the base includes a base and a mounting portion extending rearward from the upper rear end of the base, the connecting portion extends out of the mounting portion to form the tail portion, the shielding shell includes a barrel portion annularly fixed to the base and forming a docking cavity with the tongue plate, a cover portion extending backward from the top wall and side walls of the barrel portion and downwardly covering the mounting portion, and a rear baffle plate extending downward from the cover portion and arranged at the rear end of the mounting portion.

7. The electrical connector according to claim 6, wherein: The metal shielding plate includes a first flat plate portion arranged on the tongue plate, an inclined plate portion extending upward from the rear end of the first flat plate portion, a second flat plate portion extending backward from the rear end of the inclined plate portion and arranged on the mounting portion, and a vertical plate portion extending downward from the rear end of the second flat plate portion. The tail portions of the two rows of conductive terminals are arranged in two rows in the front-to-back direction, and the vertical plate portion is located between the tail portions of the two rows of conductive terminals in the front-to-back direction.

8. The electrical connector according to claim 7, wherein: The give way groove is arranged on the first flat plate portion, the second flat plate portion is arranged with a first through groove, the mounting portion is arranged with a second through groove exposing the connecting portion and communicating with the first through groove, the barrel portion forms a receiving cavity communicating with the second through groove at the rear end of the base portion, and the electrical connector includes a sealing rubber plate arranged in the receiving cavity and sealing the first through groove and the second through groove.

9. The electrical connector according to claim 6, wherein: The top wall of the cylinder has a closed interference protrusion extending into the docking cavity, the bottom wall of the cylinder is torn into the docking cavity to form an elastic abutment arm, and the bottom wall is affixed with a waterproof film at the corresponding elastic abutment arm.

10. The electrical connector according to claim 9, wherein: The shielding shell further includes a sub-shell, which includes a bottom plate welded to the bottom wall, side plates extending upward from both sides of the bottom plate to form side plates located on both sides of the side walls, and a rear plate extending upward from the rear end of the bottom plate to form a rear end of the bottom wall, and the side plates are folded downward to extend to form mounting feet.

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