Electrical connector

Abstract

An electrical connector includes an insulating body having a base and a tongue located at the front end of the base, a shielding shell sleeved outside the base and the tongue and forming a mating space, and multiple upper-row terminals and multiple lower-row terminals fixed on the base. Each upper-row and lower row terminal has a contacting portion exposed from the upper or lower surface of the tongue, a soldering portion extending out of the base, and a connecting portion located between the contacting portion and the soldering portion. The upper-row terminals and the lower-row terminals include respectively at least one upper-row ground terminal and at least one lower-row ground terminal. An extending portion extends from each of the connecting portions of the upper-row ground terminal and the lower-row ground terminal, and the cutting surface of each extending portion urges against the shielding shell.

Claims

1. An electrical connector, comprising: an insulating body having a base and a tongue located at a front end of the base; a shielding shell sleeved over the base and the tongue and forming a mating space; and a plurality of upper-row terminals and a plurality of lower-row terminals fixed on the base, wherein each of the upper-row terminals and lower-row terminals has a contacting portion exposed from upper surface or lower surface of the tongue, a soldering portion extending out of the base, and a connecting portion located between the contacting portion and the soldering portion; wherein the upper-row terminals and the lower-row terminals respectively comprises at least one upper-row ground terminal and at least one lower-row ground terminal, an extending portion extends from the connecting portion of each of the at least one upper-row ground terminal and the at least one lower-row ground terminal, and a cutting surface of each of the extending portions urges against the shielding shell; and wherein each of the extending portions comprises a first bending portion and a second bending portion bending backward horizontally from the first bending portion, and a cutting surface of an outer side of the second bending portion urging against the shielding shell.

2. The electrical connector of claim 1, wherein a groove is concavely formed in the base, the first bending portions are retained in the base, the second bending portions are located in the groove, and the cutting surface of the outer side of each of the second bending portions urges against the shielding shell in the groove.

3. The electrical connector of claim 1, wherein each of the second bending portions is away from corresponding one of the connecting portions relative to corresponding one of the first bending portions.

4. The electrical connector of claim 1, wherein each of the extending portions transversely extends from corresponding one of the connecting portions in the horizontal direction.

5. The electrical connector of claim 1, further comprising an upper grounding sheet and a lower grounding sheet respectively fixed on an upper surface and a lower surface of the tongue, wherein each of the upper grounding sheet and the lower grounding sheet comprises a first section fixed at a position of the tongue that is close to the base, a second section covering a position of the base that is close to the tongue, and a vertical section disposed between the first section and the second section, and each of the vertical sections is attached to a connecting surface of the base and the tongue.

6. The electrical connector of claim 1, further comprising a middle shielding sheet located between the upper-row terminals and the lower-row terminals, wherein the middle shielding sheet has a main body portion, the main body portion is retained in the tongue and located between the contacting portions of the upper-row terminals and the contacting portions of the lower-row terminals, each of two sides of the tongue is concavely provided with a notch, and buckling slots are formed in positions of the main body portion corresponding to the notches.

7. The electrical connector of claim 6, wherein two grounding pins respectively extend backward out of the base from the two sides of the main body portion, a metal shell is sleeved over the shielding shell, and the grounding pins urge against the metal shell.

8. An electrical connector, comprising: an insulating body having a base and a tongue located at a front end of the base; a shielding shell sleeved over the base and the tongue and forming a mating space; and a plurality of upper-row terminals and a plurality of lower-row terminals fixed on the base, wherein each of the upper-row terminals and lower-row terminals has a contacting portion exposed from upper surface or lower surface of the tongue, a soldering portion extending out of the base, and a connecting portion located between the contacting portion and the soldering portion; wherein the upper-row terminals and the lower-row terminals respectively comprises at least one upper-row ground terminal and at least one lower-row ground terminal, an extending portion extends from the connecting portion of each of the at least one upper-row ground terminal and the at least one lower-row ground terminal, and a cutting surface of each of the extending portions urges against the shielding shell; and wherein a groove is concavely formed in the base, a rear plate edge of each of the extending portions is exposed to the groove, the shielding shell comprises at least one elastic arm extending into the groove, and the rear plate edge of each of the extending portions urges against corresponding one of the at least one elastic arm in a front-rear direction.

9. The electrical connector of claim 8, wherein a number of the at least one elastic arm is two, the two elastic arms are arranged on the shielding shell in a vertically symmetrical mode and extend into the groove, and plate edges of the two elastic arms respectively urge against the rear plate edge of the at least one upper-row ground terminal and a rear plate edges of the at least one lower-row ground terminals.

10. The electrical connector of claim 8, wherein each of the extending portions transversely extends from corresponding one of the connecting portions in the horizontal direction.

11. The electrical connector of claim 8, further comprising an upper grounding sheet and a lower grounding sheet respectively fixed on an upper surface and a lower surface of the tongue, wherein each of the upper grounding sheet and the lower grounding sheet comprises a first section fixed at a position of the tongue that is close to the base, a second section covering a position of the base that is close to the tongue, and a vertical section disposed between the first section and the second section, and each of the vertical sections is attached to a connecting surface of the base and the tongue.

12. The electrical connector of claim 8, further comprising a middle shielding sheet located between the upper-row terminals and the lower-row terminals, wherein the middle shielding sheet has a main body portion, the main body portion is retained in the tongue and located between the contacting portions of the upper-row terminals and the contacting portions of the lower-row terminals, each of two sides of the tongue is concavely provided with a notch, and buckling slots are formed in positions of the main body portion corresponding to the notches.

13. The electrical connector of claim 12, wherein two grounding pins respectively extend backward out of the base from the two sides of the main body portion, a metal shell is sleeved over the shielding shell, and the grounding pins urge against the metal shell.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying drawings illustrate one or more embodiments of the invention and together with the written description, serve to explain the principles of the invention. Wherever possible, the same reference numbers are used throughout the drawings to refer to the same or like elements of an embodiment.

(2) FIG. 1 is a schematic three-dimensional exploded view of an electrical connector according to one embodiment of the present invention.

(3) FIG. 2 is a schematic three-dimensional partial assembly view of the electrical connector according to one embodiment of the present invention.

(4) FIG. 3 is a schematic three-dimensional partial assembly view of the electrical connector according to one embodiment of the present invention from another angle.

(5) FIG. 4 is a schematic three-dimensional assembly view of the electrical connector according to one embodiment of the present invention.

(6) FIG. 5 is a local sectional view of the electrical connector according to one embodiment of the present invention.

(7) FIG. 6 is a local sectional view of the electrical connector according to one embodiment of the present invention from another angle.

(8) FIG. 7 is a schematic three-dimensional partial assembly view of an electrical connector according to a second embodiment of the present invention.

(9) FIG. 8 is an enlarged view of part a in FIG. 7.

(10) FIG. 9 is a schematic three-dimensional assembly view of the electrical connector according to the second embodiment of the present invention.

(11) FIG. 10 is a local sectional view of the electrical connector according to the second embodiment of the present invention.

(12) FIG. 11 is an enlarged view of part b in FIG. 10.

(13) FIG. 12 is a local sectional view of the electrical connector according to the second embodiment of the present invention from another angle.

(14) FIG. 13 is an enlarged view of part c in FIG. 12.

DETAILED DESCRIPTION OF THE INVENTION

(15) The present invention is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Various embodiments of the invention are now described in detail. Referring to the drawings, like numbers indicate like components throughout the views. As used in the description herein and throughout the claims that follow, the meaning of a, an, and the includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein and throughout the claims that follow, the meaning of in includes in and on unless the context clearly dictates otherwise. Moreover, titles or subtitles may be used in the specification for the convenience of a reader, which shall have no influence on the scope of the present invention.

(16) It will be understood that when an element is referred to as being on another element, it can be directly on the other element or intervening elements may be present therebetween. In contrast, when an element is referred to as being directly on another element, there are no intervening elements present. As used herein, the term and/or includes any and all combinations of one or more of the associated listed items.

(17) Furthermore, relative terms, such as lower or bottom and upper or top, may be used herein to describe one element's relationship to another element as illustrated in the Figures. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the Figures. For example, if the device in one of the figures is turned over, elements described as being on the lower side of other elements would then be oriented on upper sides of the other elements. The exemplary term lower, can therefore, encompasses both an orientation of lower and upper, depending of the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as below or beneath other elements would then be oriented above the other elements. The exemplary terms below or beneath can, therefore, encompass both an orientation of above and below.

(18) As used herein, around, about or approximately shall generally mean within 20 percent, preferably within 10 percent, and more preferably within 5 percent of a given value or range. Numerical quantities given herein are approximate, meaning that the term around, about or approximately can be inferred if not expressly stated.

(19) As used herein, the terms comprising, including, carrying, having, containing, involving, and the like are to be understood to be open-ended, i.e., to mean including but not limited to.

(20) The description will be made as to the embodiments of the present invention in conjunction with the accompanying drawings in FIGS. 1-13. In accordance with the purposes of this invention, as embodied and broadly described herein, this invention, in one aspect, relates to an electrical connector.

(21) Referring to FIGS. 1 and 4, an electrical connector according to one embodiment of the present invention includes an insulating body 1, a shielding shell 4 sleeved over the insulating body 1 to form a mating space 41, a metal shell 5 sleeved over the shielding shell 4 (as shown in FIG. 3), multiple upper-row terminals 21, multiple lower-row terminals 22 and a middle shielding sheet 3 fixed to the insulating body 1, and a pair of grounding sheets including an upper grounding sheet 61 and a lower grounding sheet 62.

(22) The insulating body 1 has a base 11 and a tongue 12 located at the front end of the base 11. Two grooves 111 are concavely formed in the base 11 and are respectively located in the two sides of the base 11. The tongue 12 has an upper surface 121 and a lower surface 122. The two sides of the tongue 12 are respectively recessed with a notch 123.

(23) As shown in FIGS. 1 and 5, the multiple upper-row terminals 21 and the multiple lower-row terminals 22 are fixed to the base 11. Each of the upper-row terminals 21 and the lower-row terminals 22 has a contacting portion 25 exposed from the upper surface 121 or the lower surface 122 of the tongue 12, a soldering portion 27 extending out of the base 11, and a connecting portion 26 located between the contacting portion 25 and the soldering portion 27. The upper-row terminals 21 and the lower-row terminals 22 includes respectively two upper-row ground terminals 23 and two lower-row ground terminals 24. An extending portion 28 extends from the connecting portion 26 of each upper-row ground terminal 23, an extending portion 28 extends from the connecting portion 26 of each lower-row ground terminal 24, and the extending portions 28 extend transversely from the connecting portions 26 in the horizontal direction. Each extending portion 28 has a first bending portion 281. The first bending portion 281 is horizontally bent backward to form a second bending portion 282. The second bending portion 282 is away from the corresponding connecting portion 26 relative to the first bending portion 281. The first bending portion 281 is retained in the base 11, the second bending portion 282 is located in the corresponding groove 111, and the cutting surface of the outer side of the second bending portion 282 urges against the shielding shell 4.

(24) As shown in FIGS. 1 and 2, a middle shielding sheet 3 is located between the multiple upper-row terminals 21 and the multiple lower-row terminals 22. The middle shielding sheet 3 has a main body portion 31. The main body portion 31 is retained in the tongue 12 and is located between the contacting portions 25 of the upper-row terminals 21 and the contacting portions 25 of the lower-row terminals 22. Buckling slots 33 are formed in the positions, corresponding to the notches 123 of the tongue 12, of the main body portion 31. Two grounding pins 32 respectively extend backward out of the base 11 from the two sides of the main body portion 31, and the grounding pins 32 urge against the metal shell 5.

(25) As shown in FIGS. 1 and 6, the upper grounding sheet 61 and the lower grounding sheet 62 are respectively fixed on the upper surface 121 and the lower surface 122 of the tongue 12. The upper grounding sheet 61 and the lower grounding sheet 62 are respectively provided with a first section 63 and a second section 64. Each first section 63 is located at the position of the tongue 12 that is close to the base 11. Each second section 64 covers the position of the base 11 that is close to the tongue 12. A vertical section 65 is arranged between each first section 63 and the corresponding second section 64. Each vertical section 65 is attached to the connecting surface of the base 11 and the tongue 12.

(26) FIGS. 7-13 show the second embodiment of the present invention. The second embodiment is different from the first embodiment in that: each extending portion 28 is provided with a front plate edge 281, a side plate edge 282 and a rear plate edge 283, and the rear plate edge 283 of the extending portion 28 is exposed in the corresponding groove 111. The shielding shell 4 is provided with two elastic arms 42, including an upper elastic arm 421 and a lower elastic arm 422, which are in a vertical symmetrical mode and extend into the grooves 111. Each elastic arm 42 has a front plate edge 423, a side plate edge 424 and a rear plate edge 425. The front plate edge 423 of the upper elastic arm 421 urges against the rear plate edge 283 of the extending portion 28 of the upper-row ground terminals 23 in the corresponding groove 111, the front plate edge 423 of the lower elastic arm 422 urges against the rear plate edge 283 of the extending portion 28 of the lower-row ground terminals 24 in the corresponding groove 111 (as shown in FIGS. 9-13), and detailed description is omitted here.

(27) In summary, the electrical connector according to certain embodiments of the present invention has the following beneficial advantages:

(28) (1) The extending portions 28 are arranged on the connecting portion 26 of each upper-row ground terminal 23 and the connecting portion 26 of each lower-row ground terminal 24 of the electrical connector, and the cutting surface of each extending portion 28 urges against the shielding shell 4 to form a grounding structure, so that the grounding portion and grounding area of the electrical connector are increased, the grounding effect is improved and the high-frequency transmission performance of the electrical connector is ensured.

(29) (2) The first bending portions 281 are retained in the base 11 to enable the extending portions 28 to be more stable, and the second bending portions 282 are located in the grooves 111 so as to have motion space to elastically urge against the shielding shell 4. In this way, during assembly of the shielding shell 4, the second bending portions 282 will not prevent the shielding shell 4 from being sleeved over the insulating body 1.

(30) (3) In another embodiment, the front plate edge 423 of the upper elastic arm 421 urges against the rear plate edge 283 of the extending portion 28 of the upper-row ground terminals 23 in the corresponding groove 111, the front plate edge 423 of the lower elastic arm 422 urges against the rear plate edge 283 of the extending portion 28 of the lower-row ground terminals 24 in the corresponding groove 111. In this way, the grounding portion and grounding area of the electrical connector are increased, the grounding effect is improved, and the insulating body 1 can be fixed more stably due to the fact that the elastic arms 42 can prevent the insulating body 1 from moving front and back after extending into the grooves 111.

(31) (4) The upper grounding sheet 61 and the lower grounding sheet 62 are respectively fixedly arranged on the upper surface 121 and lower surface 122 of the tongue 12 to shield signal terminals against outside interference, so that a shielding structure can be formed and the high-frequency transmission performance of the electrical connector can be ensured.

(32) (5) Two grounding pins 32 of the middle shielding sheet 3 respectively extend backward out of the base 11 from the two sides of the main body portion 31, and the grounding pins 32 urge against the metal shell 5, so that a grounding structure can be formed and the grounding effect of the electrical connector can be improved.

(33) The foregoing description of the exemplary embodiments of the invention has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.

(34) The embodiments are chosen and described in order to explain the principles of the invention and their practical application so as to activate others skilled in the art to utilize the invention and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present invention pertains without departing from its spirit and scope. Accordingly, the scope of the present invention is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein.