CN203859322U - Electrical connector - Google Patents

Abstract

An electrical connector, comprising: an insulating body, a plurality of terminals, a grounding metal plate, a solder leg positioning member and an outer shielding shell. The insulating body has a main body and a tongue plate extending forward from the main body. The terminals are divided into an upper row and a lower row and fixedly arranged on the insulating body, each terminal is provided with a contact part and a tail part, the contact parts of the upper row of terminals are exposed out of the upper surface of the tongue plate, and the contact parts of the lower row of terminals are exposed out of the lower surface of the tongue plate. The grounding metal plate is a plate body between the upper row of terminals and the lower row of terminals and comprises a first shielding part and a second shielding part extending from the first shielding part. The solder leg positioning piece is fixedly combined with the main body of the insulating body and is provided with a plurality of positioning holes which penetrate through the insulating body up and down so as to respectively allow the tail parts of the terminals to penetrate through for positioning. The outer shield shell is joined to the insulator body and defines a mating cavity around the tongue plate.

Description

electrical connector

technical field

The utility model relates to an electric connector, in particular to an electric connector with good shielding effect and easy manufacture.

Background technique

There are existing electrical connectors for transmitting high-frequency signals, such as an electrical connector disclosed in Chinese Patent Application No. 201320378153.0, which includes an insulating body, two rows of terminals at the top and bottom, a shielding member and a metal shell. The insulating body of the electrical connector includes a base and a tongue extending forward from the base. The insulating body is formed by the first insulator, the second insulator, the docking plate and the assembly frame. The upper and lower rows of terminals are buried in the first insulator and the second insulator respectively, the shielding is embedded in the docking plate, and the metal shell is set on the insulating body. outside.

The shielding part of this electrical connector is only embedded in the main body of the mating plate, that is, the part provided on the tongue plate, which is used to shield the upper and lower rows of terminals, so as to reduce signal interference between the upper and lower rows of terminals. However, there is a lack of shielding between the upper and lower rows of terminals on the rear side of the tongue plate, so that the shielding measures for reducing signal interference between the upper and lower rows of terminals are still insufficient. Furthermore, since the insulating body is composed of four components, it is not easy to manufacture, resulting in high cost. In addition, this kind of electrical connector is coated with a layer of insulating material on the outer circumference of the welding part of the upper and lower rows of terminals and shielding parts to avoid deformation, which increases the front-to-back distance between two adjacent rows of welding parts, resulting in The base of the insulating body of this electrical connector needs to occupy a long space from the front surface to the rear end, and the overall length of the electrical connector is too long, which is not conducive to the miniaturization of electronic equipment.

Utility model content

Therefore, an object of the present invention is to provide an electrical connector with better shielding and grounding effects.

Another object of the present invention is to provide an electrical connector which is beneficial to miniaturization and is more convenient to manufacture.

Therefore, the electrical connector of the utility model includes: an insulating body, a plurality of terminals, a grounding metal plate, a welding leg positioning member and an outer shielding shell. The insulating body has a main body and a tongue protruding forward from the main body, and the tongue has upper and lower surfaces. The plurality of terminals are divided into upper and lower rows fixed on the insulating body, and each of the terminals has a contact portion exposed forward to the tongue plate and a tail protruding from the insulating body, wherein the upper The contact portion of the row of terminals is exposed on the upper surface of the tongue plate and the contact portion of the lower row of terminals is exposed on the lower surface of the tongue plate. The ground metal plate is interposed between the upper and lower rows of terminals, including a first shielding portion and a second shielding portion extending from the first shielding portion, wherein the first shielding portion is fixed In the insulating body, the second shielding portion protrudes from the insulating body in the same direction as the tails of the plurality of terminals. The welding leg positioning member has a plurality of positioning holes penetrating up and down for the tails of the plurality of terminals to pass through and position respectively. The outer shielding shell is combined with the insulating body and defines a docking cavity around the tongue plate.

The electrical connector described in the present invention also includes an inner shielding shell arranged between the outer shielding shell and the insulating body; the tongue plate has a base connected to the main body and a base connected by the base An extension extending forward, the inner shield covering the base of the tongue and the part of the main body adjacent to the tongue.

The electrical connector described in the present utility model, wherein, the inner shielding shell includes a first metal part and a second metal part, and the first metal part and the second metal part cooperate to cover the base and the portion of the main body adjacent to the tongue plate.

The electrical connector described in the present utility model, wherein, the solder leg positioning member also has a positioning groove to accommodate the second shielding portion of the ground metal plate, wherein the positioning groove is located at the corresponding Between the positioning holes of the plurality of upper-row terminals and the positioning holes corresponding to accommodate the plurality of lower-row terminals.

In the electrical connector of the present invention, the grounding metal plate further has at least one grounding leg extending out of the insulating body, and the grounding leg passes through one of the positioning holes of the soldering leg positioning member.

The electrical connector described in the present utility model, wherein, the tails of the plurality of upper row terminals are solder feet in the form of surface welding, and are located behind the tails of the plurality of lower row terminals, and the solder leg positioning parts are located The positioning hole behind the positioning groove also penetrates the rear side to pass through the tails of the plurality of upper row terminals.

In the electrical connector described in the present invention, the tongue plate also has two buckling parts that are respectively recessed from the two sides of the extension part, and part of the side edge of the grounding metal plate is exposed on the Two buckle parts.

The electrical connector described in the present utility model, wherein, the insulating body is formed by a combination of a first insulating part and a second insulating part, the plurality of upper row terminals are embedded in the first insulating part, and the plurality of terminals are embedded in the first insulating part. A lower row of terminals is embedded in the second insulator, and the ground metal plate is sandwiched between the first insulator and the second insulator.

The electrical connector described in the present utility model, wherein the first insulator includes a first main body part and a first tongue part extending forward from the first main body part, wherein the plurality of upper The contact portion of the terminal row is exposed on the first tongue portion; the second insulating member includes a second body portion and a second tongue portion extending forward from the second body portion, wherein The contact parts of the plurality of lower row terminals are exposed on the second tongue part; the first tongue part and the second tongue part are combined to form the tongue of the insulating body, and the first A main body part and the second main body part form the main body of the insulating body.

In the electrical connector of the present invention, a terminal spacer protrudes downward from the bottom surface of the first insulator, and the terminal spacer passes through the grounding metal plate and presses against the plurality of the tail of at least a portion of the lower row of terminals.

The effect of the utility model is that the electrical connector of the utility model strengthens the strength of the tongue plate by means of the grounding metal plate and reduces the high-frequency crosstalk when the terminals transmit signals, and has a second shielding part at the tails of multiple upper row terminals and multiple The tails of the lower row of terminals extend laterally to further enhance the shielding effect, thereby achieving the purpose of improving electrical performance and increasing the grounding shielding effect. In addition, the insulating body is formed by combining the first insulating part and the second insulating part, and then combining the welding leg positioning part for the tails of the multiple terminals and the grounding pins of the grounding metal plate to be pierced and positioned. In this way, three insulating parts are used. The type combination can make manufacturing and assembling easier, and is also conducive to the miniaturization of electrical connectors.

Description of drawings

Other features and effects of the present utility model will be clearly presented in the implementation manner with reference to the accompanying drawings, wherein:

Figure 1 is a perspective view illustrating a preferred embodiment of the electrical connector of the present invention disposed on a circuit board and its docking relationship with a plug connector;

Figure 2 is a perspective view illustrating that the preferred embodiment is located on a circuit board;

Fig. 3 is a three-dimensional exploded view illustrating the combination relationship between an outer shield shell and an insulating body of the preferred embodiment;

Fig. 4 is another angle view of Fig. 3;

Fig. 5 is a three-dimensional exploded view illustrating the combination relationship between an inner shield shell and the insulating body of the preferred embodiment;

Fig. 6 is another angle view of Fig. 5;

Fig. 7 is a three-dimensional exploded view illustrating the combination relationship between a grounding metal plate and a welding leg positioning member and the insulating body of the preferred embodiment;

Fig. 8 is another angle view of Fig. 7;

Fig. 9 is a three-dimensional exploded view illustrating the combination relationship between the terminal of the preferred embodiment and a first insulating part and a second insulating part of the insulating body;

Figure 10 is another perspective view of Figure 9;

Figure 11 is a front view illustrating the preferred embodiment;

Fig. 12 is a sectional view taken along the line XII-XII in Fig. 11;

Fig. 13 is a sectional view taken along the line XIII-XIII in Fig. 11;

Figure 14 is a perspective view illustrating the functional relationship between a terminal spacer and a terminal tail in the preferred embodiment; and

Fig. 15 is a partial view of Fig. 14, illustrating the functional relationship between the terminal spacer and the terminal tail in the preferred embodiment.

Wherein, the reference signs are explained as follows:

100 electrical connectors

1 Insulation body

11 The first insulating part

111 concave hole

12 Second insulating part

121 boss

122 limit slot

13 subject

13’ first main body

13” Second main body

131 upper surface

132 lower surface

133 side

134 front surface

135 slots

136 card slot

137 Give way groove

14 tongue plate

14’ first lingual plate

14” second tongue plate

141 base

142 extension

143 upper surface

144 lower surface

145 Give way groove

146 buckle part

15 Terminal spacer

2 terminals

21 contact part

22 Tail

3 Outer shielding shell

31 Docking cavity

32 solder feet

33 perforation

4 Inner shielding shell

41 Fixing tab

42 Fixing tab

43 Welding feet

44 The first metal piece

441 The first transverse plate

442 The first bending part

443 The first fixed part

444 ground shrapnel

445 First Guidance Department

45 Second metal part

451 The second transverse plate

452 Second bending part

453 The second fixed part

454 Second Guidance Department

5 ground metal plate

51 The first shelter

511 perforation

52 The second shielding part

521 perforation

53 ground pin

6 Welding leg positioning parts

61 block

62 positioning hole

63 positioning hole

64 positioning groove

9 circuit board

200 plug connector

201 Butt leading edge

202 ground shrapnel

203 shielded shell

Detailed ways

Referring to FIG. 1 and FIG. 2 , the electrical connector 100 of the present invention can be disposed on a circuit board 9 for a plug connector 200 to connect with.

Referring to FIG. 2 to FIG. 8 , the electrical connector 100 includes an insulating body 1 , a plurality of terminals 2 , an outer shielding shell 3 , an inner shielding shell 4 , a grounding metal plate 5 and a solder leg positioning member 6 .

The insulating body 1 is composed of a first insulating part 11 and a second insulating part 12 , and has a main body 13 and a tongue 14 protruding forward from the main body 13 . The main body 13 has a relatively wide upper surface 131 , a lower surface 132 , two side surfaces 133 connecting the upper and lower surfaces 131 , 132 , and a front surface 134 . The tongue plate 14 has a base portion 141 connected to the main body 13 and an extension portion 142 extending forward from the base portion 141 . Wherein the thickness of the base portion 141 of the tongue plate 14 is thicker than the thickness of the extension portion 142 of the tongue plate 14 . Specifically, the first insulating member 11 of this embodiment includes a first main body portion 13 ′ and a first tongue plate portion 14 ′ extending forward from the first main body portion 13 ′; the second insulating member 12 includes a The second body part 13" and the second tongue part 14" extending forward from the second body part 13"; the first tongue part 14' and the second tongue part 14" are combined to form the insulating body 1 The tongue plate 14, the first body part 13' and the second body part 13" are combined to form the main body 13 of the insulating housing 1.

Also referring to FIG. 9 and FIG. 10 , a plurality of terminals 2 are fixed on the insulating body 1 and each have a contact portion 21 exposed from the extension portion 142 of the tongue plate 14 , and a main body protruding backward from the insulating body 1 13 tail 22. The contact portion 21 of the upper row of terminals 2 is exposed on the upper surface 143 of the extension portion 142 of the tongue plate 14 , and the contact portion 21 of the lower row of terminals 2 is exposed on the lower surface 144 of the extension portion 142 of the tongue plate 14 . In detail, the plurality of terminals 2 are divided into upper and lower rows, the plurality of upper row terminals 2 are embedded in the first insulating member 11 , and the plurality of lower row terminals 2 are embedded in the second insulating member 12 . The contact portions 21 of the plurality of upper row terminals 2 are exposed on the first tongue portion 14 ′, and the tail portions 21 protrude backward from the first main body portion 13 ′; the contact portions 21 of the plurality of lower row terminals 2 are It is exposed on the second tongue plate part 14", and its tail part 22 protrudes backward from the second main body part 13". Each row of terminals 2 includes four terminals 2 that protrude forward and eight terminals 2 that are located later, of which the two longer terminals 2 on both sides are used for grounding, and the two longer terminals 2 in the middle are used for grounding. to provide power. The eight shorter terminals 2 include two high-speed differential signal pairs, a low-speed differential signal pair in the center, and two control terminals. The contact portion 21 of the upper row of terminals 2 and the contact portion 21 of the lower row of terminals 2 are arranged symmetrically at 180 degrees relative to the tongue plate 14 , so that the plug connector 200 can be inserted into the electrical connector 100 in a 180-degree turn.

The outer shielding shell 3 is combined with the insulating body 1 and defines a docking cavity 31 around the outer space of the tongue plate 14 , and has four solder feet 32 for fixing to the circuit board 9 . Wherein the front surface 134 of the insulating body 1 faces the docking cavity 31 .

The inner shielding shell 4 covers the base 141 of the tongue 14 and the upper and lower surfaces 131 , 132 and the front surface 134 of the main body 13 , and has a plurality of fixing tabs 41 , 42 for positioning the inner shielding shell 4 . Specifically, the inner shielding shell 4 includes a first metal part 44 and a second metal part 45 . The first metal piece 44 has a first horizontal plate portion 441 covering the base portion 141, a first bent portion 442 extending vertically from the rear end of the first horizontal plate portion 441, and a first bending portion 442 extending from the first horizontal plate portion 441 A first fixing portion 443 extends horizontally rearward from an upper edge of the bent portion 442 . The second metal piece 45 has a second horizontal plate portion 451 covering the base portion 141, a second bent portion 452 extending vertically from the rear end of the second horizontal plate portion 451, and a second bending portion 452 extending from the second horizontal plate portion 451 A second fixing portion 453 extends horizontally backward from the lower edge of the bent portion 452 . The first and second horizontal plate portions 441 , 451 cover the upper and lower sides of the base portion 141 of the tongue plate 14 , the first bent portion 442 and the second bent portion 452 cover the front surface 134 of the main body 13 , The first fixing portion 443 and the second fixing portion 453 respectively cover the upper and lower surfaces 131 , 132 of the main body 13 . In other words, the first metal part 44 and the second metal part 45 jointly cover the upper and lower sides of the base 141 of the tongue plate 14, that is, the inner shielding shell 4 covers the base 141 of the tongue plate 14, so as to connect multiple terminals 2 surrounds it and maintains a gap with these terminals 2 . In some simpler alternative embodiments (not shown), the inner shielding shell 4 can also be set to only cover the base 141 of the tongue 14, or only cover the base 141 of the tongue 14 and the main body. The front surface 134 of 13, so as to achieve the effect of ground shielding to a certain extent, prevent the electromagnetic radiation in the docking cavity 31 from leaking backward through the insulating body 1 and affect the tail of the terminal 2, thereby improving the signal transmission quality of the terminal 2 and preventing The purpose of leakage of electromagnetic radiation to the outside of the electrical connector 100 .

The insulative housing 1 also has two grooves 135 extending along the up and down directions near the two sides of the base 141 of the tongue plate 14, a plurality of slots 136 respectively formed on the upper and lower surfaces 131, 132, and two The relief groove 137 on the upper surface 131 . In some alternative embodiments, the rear ends of the two grooves terminate at the front of the main body 13 or at the intersection of the main body 13 and the tongue plate 14 (not shown), wherein four fixing tabs 41 are respectively formed on the first transverse The lateral sides of the plate portion 441 and the second horizontal plate portion 451 are embedded and locked in the corresponding grooves 135 , so as to achieve the purpose of fixing the first horizontal plate portion 441 and the second horizontal plate portion 451 . And specific to this preferred embodiment, the two grooves 135 are also preferably further extended to a set depth in the main body 13 of the insulating body 1, and run through the main body 13 up and down; The part is embedded into the channel 135 formed on the main body 13, so as to be clamped and fixed in it by the main body 13, so as to prevent the fixing tab 41 from expanding outward and deforming; the four fixing tabs 42 are preferably respectively formed on The lateral sides of the first fixing part 443 and the second fixing part 453 are inserted into the corresponding slots 136 to strengthen and fix the first metal part 44 and the second metal part 45; the other two welding legs 43 Formed on the second bending portion 452 and the second fixing portion 453, the welding leg 43 extends from the second horizontal plate portion 451 toward the outer shielding shell 3, and the outer shielding shell 3 has two corresponding through holes 33 for The corresponding soldering pins 43 are accommodated so that the soldering pins 43 located in the corresponding through holes 33 can be soldered to the circuit board 9 (see FIGS. 11 and 12 ) to form grounding and provide a fixing effect. The first metal piece 44 also has two ground elastic pieces 444 formed on the first bending portion 442 and the first fixing portion 443, the two ground elastic pieces 444 extend from the first horizontal plate portion 441 and are connected to the outer The shielding shell 3 is in contact (see FIG. 12 ), so that the inner shielding shell 4 and the outer shielding shell 3 achieve the effects of grounding and auxiliary fixing.

The front edge of the inner shielding shell 4 preferably has at least one guide portion in a curved arc shape, and the tongue plate 14 is also formed with at least one relief groove corresponding to the guide portion, wherein the front edge of the guide portion is in line with the relief groove. There is a gap between the bit grooves, so that the guide part can move slightly therein. Specifically in this preferred embodiment, the first metal part 44 also has a first guide part 445 formed on the front edge of the first horizontal plate part 441 and is curved in an arc shape, and the second metal part 45 also has a formed The second guiding portion 454 is on the front edge of the second horizontal plate portion 45 and is curved. The tongue plate 14 also has two relief grooves 145 (see FIG. 12 ) respectively formed on the upper and lower surfaces 143 , 144 of the base 141 to accommodate the first and second guide portions 445 , 454 respectively. When the plug connector 200 (see FIG. 1 ) is mated with the electrical connector 100, the first and second guides 445, 454 allow the mating front edge 201 of the plug connector 200 to pass through easily without blocking . Moreover, when the plug connector 200 is docked with the electrical connector 100, the plurality of upper and lower grounding springs 202 of the plug connector 200 can contact the first horizontal plate portion 441 and the second horizontal plate portion 451 of the inner shielding shell 4 so as to The effect of grounding is achieved, thereby constituting the first ground shielding structure to prevent electromagnetic radiation from leaking backward through the insulating body 1 . The outer shielding shell 3 is in contact with the shielding shell 203 of the plug connector 200 to form a second grounding shielding structure, so that an overall surrounding shielding effect can be effectively achieved around the outer periphery of the mating cavity 31 .

Referring to FIG. 7 to FIG. 10 , the ground metal plate 5 is interposed between the first insulating member 11 and the second insulating member 12 . The ground metal plate 5 is a plate body between the upper and lower rows of terminals, including a first shielding portion 51 and a second shielding portion 52 extending from the first shielding portion 51, and two A shielding portion 51 extends rearwardly out of the insulating housing 1 and is located at two sides of the second shielding portion 52 with grounding pins 53 . Wherein the first shielding portion 51 is fixed in the insulating body 1, and the second shielding portion 52 protrudes from the insulating body 1 in the same direction as the tail portion 22 of the terminal 2; specifically, the second shielding portion 52 is formed by the grounding metal The rear end of the first shielding portion 51 of the board 5 is bent vertically downward, and extends transversely between the tail portions 22 of the upper row terminals 2 and the lower row terminals 2 . In this embodiment, the second insulator 12 has a plurality of protruding posts 121, and the first insulator 11 has a plurality of recessed holes 111 that respectively engage with the plurality of protruding posts 121, and the grounded metal plate 5 has a plurality of through holes 511 formed in the first shielding portion 51 for respectively passing through the corresponding protrusions 121 . Of course, in an equivalent embodiment, it is also possible that the first insulating member 11 has a protrusion, and the second insulating member 12 has a concave hole. The ground metal plate 5 can enhance the strength of the tongue plate 14 and reduce the high-frequency crosstalk when the upper row of terminals 2 and the lower row of terminals 2 transmit signals, especially the second shielding part 52 between the tails 22 of the plurality of upper row terminals 2 and the plurality of The tails 22 of the lower row of terminals 2 extend laterally to further enhance the shielding effect, and are grounded through the grounding pin 53 , thereby achieving the purpose of improving the electrical performance of the terminals 2 . Furthermore, referring to FIG. 1 and FIG. 3 , the tongue plate 14 also has two buckling portions 146 respectively recessed from both sides of the extension portion 142, and part of the side edge of the grounding metal plate 5 is exposed to these buckling portions. part 146, whereby when the plug connector 200 is docked with the electrical connector 100, the buckling elastic piece (not shown) of the plug connector 200 can be buckled on the corresponding buckling part 146 and contact the grounding metal plate 5, and The grounding pin 53 of the grounding metal plate 5 is grounded, so that the plug connector 200 has a better grounding effect.

Referring to FIG. 9 to FIG. 12 , the welding leg positioning member 6 is combined and fixed with the body 13 of the insulating housing 1 . Specifically, the welding leg positioning member 6 is combined with the rear side of the second insulating member 12 and under the first insulating member 11, and has two locking blocks 61 respectively protruding from the left and right sides to be locked on the second insulating member 12. The limit groove 122 on the two insulators 12, and a plurality of positioning holes 62, 63 penetrating up and down are respectively used for the tails 22 of the plurality of terminals 2 and the grounding feet 53 of the grounding metal plate 5 to pass through and position, thereby preventing multiple The tail portion 22 and the ground pin 53 are deformed. In this embodiment, the tails 22 of the plurality of lower-row terminals 2 extend straight downwards as welding feet in the form of through-hole welding. The ends of the tails 22 of the upper rows of terminals 2 are bent, which are solder feet in the form of surface welding, and are located behind the tails 22 of the plurality of lower rows of terminals 2. The positioning holes 63 in the rear row of the solder leg positioning parts 6 are also Through the back side to pass through the tail portions 22 of the plurality of upper row terminals 2 . In addition, the solder leg positioning member 6 also has a positioning groove 64 for correspondingly accommodating the end of the second shielding portion 52 of the grounding metal plate 5 (see FIG. 13 ), wherein the positioning groove 64 is located at a position corresponding to accommodating the upper row of terminals. 2 between the positioning hole 63 and the corresponding positioning hole 62 for receiving the lower row of terminals 2 .

Referring to FIG. 10 , and FIG. 13 to FIG. 15 , the first insulator 11 protrudes rearwardly compared with the second insulator 12 , and a terminal spacer 15 protrudes downward from the bottom surface of the protruding portion. A through hole 521 is formed at the rear of the ground metal plate 5 for the terminal spacer 15 to pass through. Referring to FIGS. 13 to 15 , the terminal spacer 15 is pressed against the rearwardly protruding tails 22 of the two lower terminals 2 in the middle, so as to prevent the tails 22 of multiple terminals 2 from going upward when they are mounted on the circuit board 9 The bending deformation comes into contact with the grounded metal plate 5 to cause a short circuit.

To sum up, the electrical connector 100 of the present invention utilizes the grounding metal plate 5 to enhance the strength of the tongue plate 14 and reduce the high-frequency crosstalk when the terminals 2 transmit signals, and because the second shielding portion 52 is on the upper row of terminals 2 Between the tail portion 22 of the bottom row of terminals 2 and the tail portion 22 of the plurality of lower row terminals 2 extends along the transverse direction to further strengthen the shielding effect, so as to achieve the purpose of improving the electrical performance and further increase the grounding shielding effect. In addition, the insulating body 1 is formed by combining the first insulating member 11 and the second insulating member 12, and then combining the solder leg positioning member 6 for the tails 22 of the plurality of terminals 2 and the grounding leg 53 of the grounding metal plate 5 to pass through and set. In this way, the three-piece combination of the insulating component is beneficial to the miniaturization of the electrical connector 100 and makes manufacturing and assembling easier.

However, the above is only a preferred embodiment of the present utility model, and should not limit the scope of the present utility model, that is, all simple equivalent changes and modifications made according to the claims of the utility model and the contents of the description, All still belong to the scope of the claims of the present utility model.

Claims (10)

1. an electric connector, is characterized in that, described electric connector comprises:

One insulating body, has a main body and a hyoplastron being stretched out forward by described main body, and described hyoplastron has upper and lower surface;

Multiple terminals, be divided into upper and lower two rows and be fixedly arranged on described insulating body, described each terminal has respectively a contact site and that is exposed to forward described hyoplastron and stretches out the afterbody of described insulating body, and wherein the contact site of upper row's terminal is exposed to the upper surface of described hyoplastron and the contact site of lower row's terminal and is exposed to the lower surface of described hyoplastron;

One grounding plate, it is the plate body between upper and lower row's terminal, comprise one first shielding portion and by extended one second shielding portion of described the first shielding portion, wherein said the first shielding portion is fixedly arranged in described insulating body, and the afterbody of described the second shielding portion and described multiple terminals is equidirectional stretches out described insulating body;

One leg keeper, has multiple location holes that run through up and down to supply respectively the afterbody of described multiple terminals to wear location; And

One external shielding case, combines with described insulating body and defines a docking chamber around the space outerpace of described hyoplastron.

2. electric connector as claimed in claim 1, is characterized in that, described electric connector also comprises an inner shield shell of being located between described external shielding case and described insulating body; Described hyoplastron has base portion and the extension being extended forward by described base portion of the described main body of a connection, and described inner shield shell covers the part of base portion and the adjacent described hyoplastron of described main body of described hyoplastron.

3. electric connector as claimed in claim 2, is characterized in that, described inner shield shell comprises one first metalwork and one second metalwork, the common part that covers described base portion and the adjacent described hyoplastron of described main body of described the first metalwork and described the second metalwork.

4. electric connector as claimed in claim 3, it is characterized in that, described leg keeper also has a detent to coordinate the second shielding portion of accommodating described grounding plate, and wherein said detent is accommodated and describedly arranged between the location hole and corresponding location hole of accommodating described multiple lower row's terminals of terminal on multiple in correspondence.

5. electric connector as claimed in claim 4, is characterized in that, described grounding plate also has at least one grounding leg that extends described insulating body, and described grounding leg is through a wherein location hole of described leg keeper.

6. electric connector as claimed in claim 5, it is characterized in that, the afterbody of described multiple upper row's terminals is the leg of surface soldered form, and be positioned at the afterbody rear of described multiple lower row's terminals, the location hole that is positioned at described detent rear in described leg keeper also runs through trailing flank to wear the afterbody of described multiple upper row's terminals.

7. electric connector as claimed in claim 2 or claim 3, is characterized in that, described hyoplastron also has two holding parts that are recessed in opposite directions by described extension both sides respectively, and the part lateral margin of described grounding plate is exposed to described two holding parts.

8. electric connector as claimed in claim 7, it is characterized in that, described insulating body is combined to form by one first insulating part and one second insulating part, described multiple upper row's terminal is embedded in described the first insulating part, described multiple lower row's terminal is embedded in described the second insulating part, and described grounding plate is located between described the first insulating part and described the second insulating part.

9. electric connector as claimed in claim 8, it is characterized in that, described the first insulating part comprises that one first main part and is by described the first main part extended the first hyoplastron portion forward, and the contact site of wherein said multiple upper row's terminals is to expose described the first hyoplastron portion that is arranged on; Described the second insulating part comprises that one second main part and is by described the second main part extended the second hyoplastron portion forward, and the contact site of wherein said multiple lower row's terminals is to expose described the second hyoplastron portion that is arranged on; Described the first hyoplastron portion and described the second hyoplastron portion are combined into the hyoplastron of described insulating body, and described the first main part and described the second main part are combined into the main body of described insulating body.

10. electric connector as claimed in claim 9, it is characterized in that, the bottom surface of described the first insulating part protrudes out a terminal interval parts downwards, and described terminal intervals portion is through the afterbody that is pressed against one of them part of described multiple lower row's terminals after described grounding plate.