CN204315842U - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector. The electrical connector comprises an insulating body, the insulating body has a base and a tongue protruding forward from the base; A row of terminals and a lower row of terminals; a first metal shell frame is set outside the insulating body to form a plug-in space; a second metal shell is set above the first metal shell; a shielding sheet is set on the In the insulating body, the shielding piece has a main body and an elastic abutting portion, the main body is arranged on the tongue plate and is located between the upper row of terminals and the lower row of terminals, the elastic abutting The portion extends out of the base and is in elastic contact with the second metal shell. The electrical connector of the utility model is beneficial to miniaturization, and has good shielding effect and high-frequency signal transmission effect.

Description

electrical connector

technical field

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

Background technique

The existing electrical connector includes a body, two rows of terminals embedded in the body, and a shielding sheet located between the two rows of terminals, to shield the gap between the two rows of terminals. electromagnetic interference. For example: the Chinese patent with the patent number CN201420287956.X, paragraphs [0051] to [0053] of the description disclose an electrical connector, which has a grounding metal sheet 5, and the grounding metal sheet 5 has a plate body 51 embedded in the The first conductive terminal 21 and the second conductive terminal 22 are spaced apart in the tongue part 16; and a beam part 54, two extension parts 55 extending outward from both sides of the beam part 54, the ends of the extension parts 55 form A contact portion 555 , the contact portion 555 is correspondingly inserted into the slot 321 on the outer shielding case 3 and closely contacts with the outer shielding case 3 so as to electrically connect the grounding metal sheet 5 to the outer shielding case 3 . However, the contact between the contact portion 555 of the electrical connector of this structure and the outer shielding shell 3 is an invariable rigid contact, because the insulating body 1 is easily deformed after frequent plugging and unplugging processes, resulting in the The contact between the contact portion 555 and the outer shielding shell 3 is unstable.

In addition, the Chinese patent No. CN201320512779.6 discloses a vertical electrical connector in paragraph [0039] of the description, which has a grounding piece 5 located between the first signal terminal 41 and the second signal terminal 42, The grounding piece 5 includes a terminal portion 51 and a main body portion 52. The two ends of the terminal portion 51 are respectively provided with elastic arms 512. The elastic arms 512 are bent upwards from the terminal portion 51 and then extended outwards and downwards. Formed to be in contact with the metal shell 3 so as to electrically conduct the ground plate 5 and the metal shell 3 . In the electrical connector with the above structure, although the contact between the grounding piece 5 and the metal shell 3 is an elastic contact, since the elastic arm 512 is formed by extending outward from the main body 52 and is located on the same plane, the size of the grounding piece is enlarged. 5 overall area, so that the electrical connector needs to reserve enough space to accommodate the grounding piece 5, thereby increasing the volume of the electrical connector, which is not conducive to the miniaturization of the electrical connector.

Therefore, it is necessary to design a new electrical connector to overcome the above problems.

Contents of the invention

The creation purpose of the utility model is to provide an electrical connector which improves the shielding effect by setting an elastic abutting part on the shielding sheet to abut against the metal shell.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

An electrical connector, characterized in that it includes: an insulating body, the insulating body has a base and a tongue protruding forward from the base; an upper row of terminals and a lower row of terminals are arranged on the insulating body The main body is partly exposed on the tongue plate; a metal shell is framed outside the insulating body; and a shielding sheet has a main body part arranged on the tongue plate and spaced apart from the upper row of terminals and the For the lower row of terminals, at least one side of the main body is provided with a connecting portion, which is bent downward from the connecting portion to form an elastic abutting portion protruding from one of the left and right sides of the base and the metal shell touch.

Further, the angle between the main body part and the elastic abutment part is greater than 0 degrees and less than 180 degrees.

Further, an extension part is provided between the connecting part and the elastic abutting part, extending laterally from the connecting part and protruding from one of the left and right sides of the base.

Further, at least one bump is arranged on one of the left and right sides of the base, the extension part is correspondingly arranged on the bump, and the elastic abutment part extends out of the bump.

Further, the elastic abutting portion is located on the rear side of the bump, and a first step and a second step are provided at the rear side of the bump corresponding to the elastic abutting portion, and the first step is closely attached to the The elastic abutting portion, there is a gap between the second step and the elastic abutting portion.

Further, the upper row of terminals includes at least one pair of high-speed differential signal terminals, and a gap is formed between the high-speed differential signal terminals on the rear end surface of the base, and the high-speed differential signal terminals are partially exposed through the gap.

Further, the metal shell includes a first metal shell and a second metal shell, the second metal shell is arranged above the first metal shell, and the elastic abutment part is at least in contact with the first metal shell and the second metal shell. One of the second metal shells is in contact.

Further, the first metal shell has a side wall and a rear wall, and the elastic abutting part is provided in a slit between the side wall and the rear wall.

Further, the lower row of terminals is integrally injection-molded with a first plastic block and a second plastic block, the first plastic block is provided with a first buckle part, and the second plastic block is provided with a second buckle part, The first plastic block and the second plastic block are engaged and fixed by the first buckle part and the second buckle part, and the second plastic block is further provided with a third buckle part located at the On the rear side of the second buckle part, the insulating body is provided with a fourth buckle part, and the second plastic block and the insulating body are mutually locked by the third buckle part and the fourth buckle part together and fixed.

Further, the third buckling part includes a vertical groove and a horizontal groove, the fourth buckling part includes a vertical rib and a transverse rib, and the vertical rib is locked in the vertical groove Inside, the transverse convex rib is clamped in the transverse groove, so as to limit and fix the insulating body, the first plastic block and the second plastic block up, down, front and rear.

Compared with the prior art, the utility model has the following beneficial effects: the shielding sheet is provided with a main body and an elastic abutting portion, the main body is separated from the upper and lower rows of terminals, and the elastic abutting portion extends out The insulating body elastically abuts against the metal shell to keep the contact between the shielding sheet and the metal shell stable, and to avoid poor contact between the shielding sheet and the metal shell during frequent plugging and unplugging processes , improve the grounding effect of the shielding sheet, thereby improving the shielding effect of the electrical connector; in addition, the elastic abutment part and the main body part are respectively located on two different planes, effectively utilizing the electrical connector space, so that the electrical connector does not need to reserve additional space for accommodating the shielding sheet, thereby reducing the overall volume of the electrical connector.

【Description of drawings】

Figure 1 is a three-dimensional exploded view of the utility model electrical connector;

Fig. 2 is a partial three-dimensional exploded view of the electrical connector of the present invention;

Fig. 3 is a three-dimensional exploded view of another angle of the electrical connector of the present invention;

Figure 4 is a three-dimensional sectional view of the utility model electrical connector;

Figure 5 is a top view of the utility model electrical connector;

Fig. 6 is a cross-sectional view of the electrical connector in Fig. 5 along the line B-B;

Figure 7 is a cross-sectional view of the electrical connector of Figure 5 along the line A-A.

Description of the accompanying drawings for specific embodiments:

Electrical connector 100 Insulation body 1 base 11 Bump 110 First Step 111 The second step 112 Notch 113 tongue plate 12 Containment Unit 13 Upper row terminal 2 first contact part 201 The first welding part 202 High-speed differential signal terminal 20 Lower terminal 3 second contact portion 301 Second welding part 302 Prefolding part 303 First plastic block 31 arm 310 The first buckle part 311 Second plastic block 32 The second buckle part 321 The third buckle part 322 Vertical slot 3220 Transverse groove 3221 Fourth buckle part 131 Vertical rib 1310 Transverse convex rib 1311 Shield sheet 4 Main body 40 connection part 41 Extension 411 elastic contact part 412 Upper ground piece 5 spring arm 51 Lower ground piece 6 First Metal Shell 7 top wall 71 bottom wall 73 side wall 72 rear wall 74 Docking space 701 Second metal shell 8 the

【Detailed ways】

In order to facilitate a better understanding of the purpose, structure, features, and effects of the utility model, the utility model will be further described in conjunction with the accompanying drawings and specific implementation methods.

As shown in Figures 1 and 4, the electrical connector 100 of the present invention includes an insulating body 1; the upper row of terminals 2 and the lower row of terminals 3 are arranged on the insulating body 1; a shielding sheet 4 is arranged on the insulating body 1 and located between the upper row of terminals 2 and the lower row of terminals 3; a first metal shell 7 framed outside the insulating body 1 to form a plug-in space 701; and a second metal shell 8, It is arranged above the first metal shell 7 .

As shown in Figures 1 and 2, the insulating body 1 has a base 11 and a tongue 12 protruding forward from the base 11, and the shielding sheet 4 has a main body disposed on the tongue 12. 40 to strengthen the strength of the tongue plate 12; the main body 40 is located between the upper row of terminals 2 and the lower row of terminals 3 to separate the upper row of terminals 2 and the lower row of terminals 3, and shield the upper row of terminals 2 and the lower row of terminals 3; Signal interference between the row of terminals 2 and the lower row of terminals 3 . Two sides of the main body 40 respectively extend backward to form two connection parts 41 embedded in the base 11 , and extend laterally from each connection part 41 to form an extension part 411 protruding from the left and right sides of the base 11 . Right side: two bumps 110 are respectively formed on the left and right side of the base 11, and each of the extensions 411 is respectively arranged on the bumps 110; from the extension 411 downwards An elastic abutting portion 412 is formed by bending to extend out from the rear side of the protrusion 110 , the angle between the main body 40 and the elastic abutting portion 412 is greater than 0 degrees and less than 180 degrees, so that the main body 40 and the elastic abutting portion 412 are respectively located in two different planes, so as to reduce the overall volume of the electrical connector 100 occupied by the shielding sheet 4 . In other embodiments, the connecting portion 41, the extending portion 411 and the elastic abutting portion 412 may also be formed by extending from one side of the main body portion 40, and the protrusion 110 may also be formed only on One of the left side and the right side of the base 11 is not limited here.

As shown in FIG. 1 , FIG. 2 and FIG. 7 , the end of the elastic abutting portion 412 elastically abuts against the second metal shell 8 to ground the shielding sheet 4 through the second metal shell 8 ; In other embodiments, the elastic abutting portion 412 may also be in contact with the first metal shell 7 or be in contact with the first metal shell 7 and the second metal shell 8 at the same time, but it is not limited thereto. A first step 111 and a second step 112 are provided at the rear side of the protrusion 110 corresponding to the elastic abutment portion 412, the first step 111 is closely attached to the elastic abutment portion 412, and the second step 111 is close to the elastic abutment portion 412. There is a gap between the step 112 and the elastic abutting portion 412 to provide a space for elastic deformation of the elastic abutting portion 412 .

The upper row of terminals 2 , the shielding sheet 4 and the insulating body 1 are integrally injection-molded (insert-molding), and the upper row of terminals 2 includes a first welding portion 202 extending out of the base 11 , and a first contact portion 201 extending forward and partially exposed on the upper surface of the tongue plate 12; the upper row of terminals 2 further includes two pairs of high-speed differential signal terminals 20, and the rear end surface of the base portion 11 corresponds to each A gap 113 is respectively provided between a pair of the high-speed differential signal terminals 20, and the high-speed differential signal terminal 20 is partly exposed in the gap 113, so as to increase the area of the high-speed differential signal terminal 20 exposed to the air, thereby effectively The transmission rate of the high-speed differential signal terminal 20 is increased, and the high-frequency performance of the electrical connector 100 is improved. The data transmission rate of the electrical connector 100 of the present invention can reach above 15 Gbps. In other embodiments, the upper row of terminals 2 may only include a pair of high-speed differential signal terminals 20 , but it is not limited thereto.

As shown in Figure 1, Figure 4 and Figure 5, the lower row of terminals 3 is integrally injection-molded (insert-molding) a first plastic block 31 and a second plastic block 32, and the first plastic block 31 is molded on the The front end of the lower row of terminals 3, the second plastic block 32 is formed on the rear end of the lower row of terminals 3, the lower row of terminals 3 has a second contact extending forward from the first plastic block 31 part 301 and a second welding part 302 extending backward from the second plastic block 32; furthermore, the lower row of terminals 3 has a pre-folded part 303 located between the first plastic block 31 and the second plastic block Between the blocks 32, the first plastic block 31 and the second plastic block 32 are respectively provided with a first buckle part 311 and a second buckle part 321, and the pre-folded part 303 is bent so that the first The buckle part 311 and the second buckle part 321 are engaged and fixed to each other to combine the first plastic block 31 and the second plastic block 32 into one body. The first plastic block 31 is provided with two arm portions 310, the first buckle portion 311 is disposed on the arm portion 310, and the second plastic block 32 is partly accommodated between the two arm portions 310; The thickness of the front end of the arm portion 310 is greater than that of the rear end in a stepped shape, thereby increasing the strength of the arm portion 310 and preventing the first plastic block 31 from bending or cracking when the first plastic block 31 and the second plastic block 32 are engaged and fixed. open.

As shown in Figure 3, Figure 4 and Figure 5, the second plastic block 32 is further provided with a third buckle part 322 located at the rear side of the second buckle part 321, and the third buckle part 322 includes a A vertical slot 3220 and a horizontal slot 3221; the insulating body 1 is provided with a receiving part 13 for receiving the first plastic block 31 and the second plastic block 32, and the receiving part 13 is provided with a fourth buckle part 131, the fourth buckle part 131 includes a vertical rib 1310 and a transverse rib 1311, the vertical rib 1310 is set in the vertical groove 3220, and the transverse rib 1311 is set In the transverse groove 3221, the insulator body 1 and the first plastic block 31 and the second plastic block 32 are fixed up, down, front, and rear, and the second contact portion 301 is located at The tongue plate 12 is partially exposed on the lower surface of the tongue plate 12 .

As shown in Figures 1 and 2, the electrical connector 100 further includes an upper grounding piece 5 and a lower grounding piece 6, the upper grounding piece 5 and the lower grounding piece 6 are interlocked and wrapped around the tongue plate 12 and the junction of the base 11, the upper ground piece 5 is provided with a plurality of elastic arms 51 which are in contact with the first metal shell 7 to be grounded, and the lower ground piece 6 is connected to the first metal shell 7. The metal shells 7 are electrically connected to each other by spot welding. In other embodiments, the upper grounding piece 5 and the lower grounding piece 6 can also be integrally formed, and the front end of the tongue plate 12 is sleeved on the connection between the rear section of the tongue plate 12 and the base 11 , is not limited here.

As shown in Figure 1, Figure 3 and Figure 6, the first metal shell 7 consists of a top wall 71, a bottom wall 73, two side walls 72 connecting the bottom wall 73 and the top wall 71, and a rear A wall 74 is formed, the bottom of the insulating body 1 is lower than the bottom wall 73; there is a slit (not labeled) between the side wall 72 and the rear wall 74, and the elastic contact portion 412 is correspondingly arranged in the slit and elastically abuts against the second metal shell 8 through the slit; the second metal shell 8 and the first metal shell 7 are fixed to each other by spot welding . In other embodiments, the first metal shell 7 and the second metal shell 8 may also be fixed by other methods, which are not limited thereto.

To sum up, the utility model electrical connector 100 has the following beneficial effects:

(1) The elastic abutting portion 412 extends out of the insulating body 1 and is in contact with at least one of the first metal shell 7 and the second metal shell 8 , keeping the shielding sheet 4 and the second metal shell 8 in contact with each other. The contact between a metal shell 7 or the second metal shell 8 is stable, avoiding poor contact between the shielding sheet 4 and the first metal shell 7 or the second metal shell 8 during frequent plugging and unplugging, and improving The grounding effect of the shielding sheet 4 improves the shielding effect of the electrical connector 100; in addition, the elastic contact portion 412 and the main body portion 40 are respectively located on two different planes, effectively utilizing the electrical The space of the connector 100 makes it unnecessary for the electrical connector 100 to reserve additional space for accommodating the shielding piece 4 , thereby reducing the overall volume of the electrical connector 100 .

(2) The rear end surface of the base 11 is respectively provided with a gap 113 between each pair of the high-speed differential signal terminals 20, and the high-speed differential signal terminals 20 are partly exposed in the gap 113 to increase the high-speed differential signal terminal 20. The area of the differential signal terminal 20 exposed to the air can effectively increase the transmission rate of the high-speed differential signal terminal 20 , thereby improving the high-frequency performance of the electrical connector 100 .

(3) The second plastic block 32 is further provided with a third buckle part 322 located behind the second buckle part 321 , and the third buckle part 322 includes a vertical groove 3220 and a horizontal groove 3221 ; The receiving portion 13 is provided with a fourth buckle portion 131, the fourth buckle portion 131 includes a vertical rib 1310 and a transverse rib 1311, and the vertical rib 1310 is fixed on the vertical rib 1310. In the groove 3220, the transverse convex rib 1311 is clamped in the transverse groove 3221, so that the insulating body 1 and the first plastic block 31 and the second plastic block 32 are moved up, down, front and back. The limit is fixed.

(4) A first step 111 and a second step 112 are provided on the rear side of the protrusion 110 corresponding to the elastic abutment portion 412 , the first step 111 is in close contact with the elastic abutment portion 412 , so There is a gap between the second step 112 and the elastic contact portion 412 to provide a space for the elastic contact portion 412 to elastically deform.

The above detailed description is only a description of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the instructions and illustrations of this creation are included in this creation. within the scope of the patent.

Claims (10)

1. An electrical connector, characterized in that, comprising: An insulating body, the insulating body has a base and a tongue protruding forward from the base; the upper row of terminals and the lower row of terminals are arranged on the insulating body and partially exposed on the tongue; A metal shell, framed outside the insulating body; and A shielding sheet, which has a main body arranged on the tongue plate and spaced apart from the upper row of terminals and the lower row of terminals, at least one side of the main body is provided with a connecting portion, downward from the connecting portion One of the left and right sides of the base is bent to form an elastic abutment protruding from the base to contact with the metal shell. 2 . The electrical connector according to claim 1 , wherein an angle between the main body portion and the elastic abutment portion is greater than 0° and less than 180°. 3. The electrical connector according to claim 1, wherein an extension part is provided between the connecting part and the elastic abutment part and extends laterally from the connecting part and protrudes from the left side of the base part. , one of the right sides. 4. The electrical connector according to claim 3, wherein at least one protrusion is disposed on one of the left and right sides of the base, the extension is correspondingly disposed on the protrusion, and the elastic The abutting portion extends out of the bump. 5. The electrical connector according to claim 4, wherein the elastic abutting portion is located at the rear side of the bump, and a first step is provided at the rear side of the bump corresponding to the elastic abutting portion and a second step, the first step is closely attached to the elastic abutment portion, and there is a gap between the second step and the elastic abutment portion. 6. The electrical connector according to claim 1, wherein the upper row of terminals includes at least one pair of high-speed differential signal terminals, and the rear end surface of the base is provided with a gap between the high-speed differential signal terminals, The high-speed differential signal terminal part is exposed through the gap. 7. The electrical connector according to claim 1, wherein the metal shell comprises a first metal shell and a second metal shell, the second metal shell is arranged above the first metal shell, The elastic abutting portion is at least in contact with one of the first metal shell and the second metal shell. 8. The electrical connector according to claim 7, wherein the first metal shell has a side wall and a rear wall, and the elastic abutting portion is disposed between the side wall and the rear wall slit between. 9. The electrical connector according to claim 1, wherein the lower row of terminals is integrally injection-molded with a first plastic block and a second plastic block, and the first plastic block is provided with a first buckle portion , the second plastic block is provided with a second buckle portion, and the first plastic block and the second plastic block are fixed to each other through the first buckle portion and the second buckle portion, so The second plastic block is further provided with a third buckle part located behind the second buckle part, and the insulating body is provided with a fourth buckle part, and the second plastic block and the insulating body pass through the The third buckle part and the fourth buckle part are mutually engaged and fixed. 10. The electrical connector according to claim 9, wherein the third locking portion comprises a vertical groove and a horizontal groove, and the fourth locking portion comprises a vertical rib and a transverse protrusion Rib, the vertical convex rib is clamped in the vertical groove, and the horizontal convex rib is clamped in the horizontal groove, so as to connect the insulating body with the first plastic block and the second plastic block. The upper, lower, and front and rear limits are fixed.