TWI573334B - Electrical receptacle connector - Google Patents

Description

Socket electrical connector

The invention relates to a socket electrical connector.

For a prior art, please refer to Japanese Patent No. JP4875130, published on Dec. 2, 2011, which discloses a similar socket electrical connector including a metal case provided with a through hole, a terminal disposed in the metal case, and covered by integral injection molding. Insulating body around the metal shell. The metal housing extends through the entire socket electrical connector in the plugging direction of the socket electrical connector. In addition, in actual use, the metal shell needs to be grounded to achieve the grounding function of the entire socket connector. However, in some electronic products, for some reasons, the socket electrical connector needs to be placed close to the antenna. In the prior art, such a socket electrical connector has a larger metal casing shape and is disposed near the antenna. The signal from the antenna creates interference; in addition, the grounding of the metal casing adds to the signal interference to the antenna. Thereby affecting the normal operation of the antenna.

Therefore, it is indeed necessary to provide a socket electrical connector with good structural strength and small interference to nearby antenna signals to solve the above technical problems.

The technical problem to be solved by the present invention is to provide a socket electrical connector with good structural strength and small interference to nearby antenna signals.

In order to solve the above technical problem, the present invention adopts the following technical solution: a socket electrical connector, comprising an insulating body provided with a docking space, a terminal and a metal shell fixed to the insulating body, the insulating body comprising a front end wall, the front end wall The top wall, the bottom wall, and the pair of side walls surrounding the docking space, the insulative housing further includes an end wall located at a rear end of the docking space and protruding forwardly from the rear end wall into the docking space a tongue, the terminal includes a contact portion fixed in the tongue plate for abutting with the mating connector, the metal shell being at least partially exposed in the docking space, the metal shell including only one integrally formed at the front end of the insulating body The pair of walls, or the metal shell comprises only two pairs of plates integrally formed on the front end wall of the insulative body, or the metal shell comprises only three pairs of plates integrally formed on the front end wall of the insulative body, or The metal shell comprises four pairs of plates integrally formed on the front end wall of the insulating body, the four pairs of boards being respectively oppositely disposed top and bottom plates and connecting the top and bottom plates respectively Plate, and the depth of the four plates of the at least one receiving space is less than the length of the plate in the insertion direction of the electrical connector receptacle of the.

Further, when the metal shell comprises only two pairs of boards integrally formed on the front end wall of the insulating body, the two pairs of boards are respectively oppositely disposed top and bottom plates, and the plugging direction of the socket electrical connector The length of at least one of the top or bottom plate is less than the depth of the docking space.

Further, when the metal shell comprises only three pairs of plates integrally formed on the front wall of the insulating body, the three pairs of plates are respectively two side plates and a bottom plate.

Further, the bottom plate includes a buckle area provided with a fastening protrusion, and the length of the buckle area is greater than one half of the depth of the docking space in the insertion direction of the socket electrical connector, and is smaller than The depth of the docking space.

Further, the buckle area is disposed at a pair of sides of the bottom plate, and the pair of fastening protrusions are respectively disposed on the pair of buckle regions, and the inner surface of the bottom plate and the front end wall The inner wall surface is flush, and the fastening protrusion protrudes toward the outer side of the docking space for snapping and fixing with the mating connector.

Further, in the plugging direction of the socket electrical connector, the lengths of the top plate and the two side plates are less than one half of the depth of the docking space.

Further, the top plate is provided with a protruding portion, an inner surface of the protruding portion is flush with an inner wall surface of the insulating body, and the remaining portion of the top plate except the protruding portion is embedded in the front end wall and The front end wall is not exposed.

Further, the side plate is provided with a protruding portion, an inner surface of the protruding portion is flush with an inner wall surface of the insulating body, and the remaining portion of the side plate except the protruding portion is embedded in the front end wall and The front end wall is not exposed.

Further, when the metal shell includes only two pairs of boards integrally formed on the front end wall of the insulating body, the two pair of boards are respectively opposite side plates, and the side boards include buckles for mating with the mating connector. Fixed buckled protrusions.

Further, at least one of the side plates has a length less than a depth of the docking space in the plugging direction of the socket electrical connector.

Compared with the prior art, in the present invention, the interference of the antenna provided in the vicinity of the electrical connector of the socket is reduced by appropriately reducing the size of the metal casing in the plugging direction of the socket electrical connector.

The first figure is a perspective view of the socket electrical connector of the present invention;

The second figure is a perspective view of the socket electrical connector shown in the first figure at another angle;

The third figure is a top view of the socket electrical connector body shown in the first figure, which shows a top view of the insulating body separated from other components;

Figure 4 is a cross-sectional view of the socket electrical connector shown in Figure 2 from line IV-IV;

The fifth figure is an exploded perspective view of the socket electrical connector shown in the first figure.

Referring to the first to fourth figures, the socket electrical connector 100 of the present invention includes a plurality of terminals 1, an insulative housing 2 provided with a tongue plate 2, a reinforcing member 3 for reinforcing the tongue plate 25, and a Two grounding strips 4 for grounding function at the rear end of the insulating body 2, and a metal shell 5 fixed at the front end of the insulating body 2. In the present invention, the insulative housing 2 is held by the integral injection molding and the terminal 1, the reinforcing member 3, the grounding piece 4, and the metal shell 5. For the convenience of the following description, all the directions referred to herein are referred to in the first figure, and the butt end of the socket electrical connector 100 is regarded as the front end, and the other end is regarded as the rear end.

Referring to FIG. 5, the terminal 1 is formed of a metal plate in a substantially elongated shape, and includes a contact portion 11 having an elongated strip shape, and is bent along the contact portion 11 to form a body shape fixing. The fixing portion 12 in the insulative housing 2 and the soldering portion 13 extending horizontally along the fixing portion 12 are formed.

Referring to FIG. 2 to FIG. 5 , the insulative housing 2 is injection molded from plastic, and includes oppositely disposed top wall 21 and bottom wall 22 , and two side walls 23 connecting the top wall 21 and the bottom wall 22 . The end wall 24 and the flat tongue 25 extending forward along the rear end wall 24 are located at the rear end of the top wall 21, the bottom wall 22, and the side walls 23. The top wall 21, the bottom wall 22, and the two side walls 23 are collectively formed with a docking space 20 for receiving a mating connector (not shown). The tongue plate 25 extends forward along the rear end wall 24 and protrudes into the docking space 20 in a cantilever shape. The upper surface of the rear end wall 24 is formed with a plurality of mold holes 241 extending from the top to the bottom of the terminal 1. The mold hole 241 is formed by injection molding the insulating body 2 and then removing the mold for positioning the terminal 1. (not shown), the mold hole 241 extends in a direction perpendicular to the tongue plate 25. The contact portion 11 of the terminal 1 is integrally formed and fixed to the lower surface of the tongue plate 25 and exposes the tongue plate 25 from the lower surface of the tongue plate 25 for electrical contact with the mating connector. In the present invention, the top wall 21, the bottom wall 22, and the two side walls 23 are collectively referred to as a front end wall.

Referring to the third figure, the reinforcing member 3 is stamped from a metal plate for reinforcing the strength of the tongue 25. The reinforcing plate 3 includes a flat plate 31, and is bent downward along the front end edge of the main plate 31 to form a front end plate 33, and is formed in the end wall 24 extending along the rear end edge of the main plate 31 and fixed to the insulating body 2. The fixing plate 32 and the side piece 34 are formed by bending downwardly along the two sides of the main plate 31. The end edge of the fixing plate 32 extends from the two sides of the insulating body 2 to the insulative housing 2. A through hole 310 is formed in the main plate 31 at least through the through hole 310 for reinforcing the holding force between the reinforcing member 3 and the tongue plate 25. The main plate 31 covers the upper surface of the tongue plate 25, and the front end plate 33 covers the front end surface of the tongue plate 25. The side panels 34 cover the two sides of the tongue plate 25 for respectively protecting the surfaces of the tongue plate 25. For anti-scratch function.

As shown in the third figure, the grounding strip 4 is fixed to the rear end of the insulative housing 2. In this embodiment, the grounding strip 4 is integrally formed and fixed in the rear end wall 24 of the insulative housing 2. Each of the grounding strips 4 includes a fixing piece 41 integrally formed in the insulative housing 2 and a soldering piece 42 extending along the fixing piece 41. The soldering piece 42 extends from the rear surface of the insulative housing 2 to the insulative housing 2 Used for soldering and fixing to the docking board. The grounding strip 4 in this embodiment is used for the grounding function.

As shown in FIG. 3 , the metal shell 5 is integrally formed at the front end of the plug end of the insulative housing 2 . In this embodiment, the metal shell 5 includes the oppositely disposed top plate 51 and the bottom plate 52 and is used for The top plate 53 of the top plate 51 and the bottom plate 52 are connected. The metal shell 5 is substantially in the shape of a rectangular parallelepiped and is made of a metal plate. The two sides of the bottom plate 52 are bent downwardly to form a fixing leg 521. The fixing leg 521 protrudes from the bottom plate 52 of the insulative housing 2 to extend the insulative housing 2 for fixing with the docking circuit board. The top plate 51 and the two side plates 53 respectively protrude inwardly to form a protruding portion 50. When the metal shell 5 is integrally formed on the insulating body 2, the inner surface of the protruding portion 50 is flush with the inner wall of the insulating body 2. Flat, other portions of the top plate 51 and the side plates 52 except the protruding portion 50 are embedded in the insulative housing 2. In the present invention, the protrusion 50 is designed to reinforce the holding force between the metal shell 5 and the insulative housing 2 while ensuring the overall strength of the interposer position of the entire receptacle electrical connector 100. In addition, when the socket electrical connector 100 is docked with the mating connector, the inner surface of the protruding portion 50 is flush with the inner wall surface of the insulative housing 2 to provide an anti-scratch effect. Thereby extending the service life of the entire receptacle electrical connector 100. The bottom plate 52 includes a buckle area 520 at two sides and a connection area 523 connecting the buckle area 520. The buckle area 520 is provided with a fastening protrusion 522, and the inner surface of the bottom plate 52 The inner surface of the insulative housing 2 is flush with the inner surface of the insulative housing 2, and the latching protrusion 522 protrudes outwardly from the mating space 20 for snapping with the mating connector. In the present invention, in the plugging direction of the socket electrical connector 100, the length of any one of the top wall 21, the bottom wall 22 and the two side walls 23 of the insulative housing 2 is greater than the top plate of the metal shell 5 51. The length of the bottom plate 52 and the two side plates 53, and the metal shell 5 does not extend into the rear end wall 24 of the insulating body 2 (as shown in the fourth figure). In other words, in the plugging direction of the socket electrical connector 100, the length of the top plate 51, the bottom plate 52 and the side plates 53 of the metal shell 5 is smaller than the depth of the docking space 20.

In order to reduce the interference to nearby antenna signals as much as possible, the insulative housing 2 of the receptacle electrical connector 100 is not ideally provided with any metal components except the terminal 1, but the actual socket electrical connector is actually used. The 100 volume is small, and no metal member is disposed in the insulating body 2, which causes the structural strength of the entire socket electrical connector 100 to be insufficient, and the service life is greatly shortened. Referring to the first figure, the third figure to the fourth figure, it is necessary to add necessary metal members to the necessary positions in the insulating body 2 of the socket electrical connector 100. In the present invention, the metal shell 5 is added at the front end of the plug end of the insulative housing 2 to enhance the strength of the insulative housing 2, and the clip 5 can prevent wear and reduce the docking connection. The contact between the device and the insulative housing 2 wears, thereby extending the service life of the receptacle electrical connector 100. In addition, the metal shell 5 has a rectangular parallelepiped design to enhance the strength of the plug connector interface of the socket electrical connector 100, and prevent the interposer from being cracked by an external force. In the present invention, in the plugging direction of the socket electrical connector 100, the length of the top plate 51 of the metal shell 5 is less than one half of the depth of the docking space 20, and the length of the bottom plate 52 is greater than the docking space. The length of the two sides is less than the depth of the docking space 20, and the length of the two side plates 53 is less than one half of the depth of the docking space 20. In this embodiment, the length of the two side plates 53 is also smaller than the top plate. The length of 51. In addition, in the preferred embodiment of the present invention, the metal shell 5 is only fixed to the docking circuit board without grounding, and the metal shell 5 is not exposed to the top of the insulating body 2 except the fixing leg 521. The outer surface of the wall 21, the bottom wall 22, and the pair of side walls 23. The invention is carried out before the sufficient strength of the insulating body 2 of the socket electrical connector 100 is ensured, and the coverage area and length of the metal shell 5 are reduced as much as possible to reduce signal interference with nearby antennas. In the present invention, the top plate 51 and the bottom plate 52 are collectively referred to as a pair of first pair of plates, and the two side plates 53 are collectively referred to as a pair of second pair of plates. In other embodiments, the metal shell 5 may also include only one or two or three of the above four pairs of boards, and the metal shell 5 may also include four pairs of boards. In the insertion direction of the socket electrical connector 100, the length of one of the four pairs of plates is designed to be smaller than the depth of the docking space 20, when the metal shell is 5 When only two pairs of plates are included, and the two pairs of plates are respectively two opposite side plates 53 , the above-mentioned fastening protrusions 522 can also be disposed on the corresponding side plates 53 to achieve the same effect. However, the larger the area of the metal shell 5 is, the greater the interference with the nearby antenna signals, and the above embodiments can be selected according to actual needs.

It should be noted that the top wall 21, the bottom wall 22 and the side wall 24 of the insulative housing 2 and the top plate 51, the bottom plate 52 and the side plates 53 of the metal shell 5 are relative concepts, and are not specifically mentioned. In addition, in other embodiments, the insulative housing 2 may also be designed not to be molded in one time. For example, the terminal 1, the reinforcing plate 3 and the grounding strip 4 are injection molded and fixed to the rear end wall 24 and the tongue plate 25, and then The metal shell 5 is injection molded into the top wall 21 and forms a cylindrical structure having a top wall 21, a bottom wall 22 and two side walls 23. Finally, the two can be assembled to form a complete socket electrical connector 100. Or the top wall 21, the bottom wall 22 and the two side walls 23 of the holding piece 5 are formed by integral molding and the above-mentioned through-molded terminal 1, the reinforcing plate 3 and the grounding piece 4, the end wall 24 and the tongue plate. 25 can also be fixed.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Equivalent modifications or variations made by those skilled in the art in the spirit of the present invention are still included in the scope of the appended claims.

100‧‧‧Socket electrical connector

1‧‧‧terminal

11‧‧‧Contacts

12‧‧‧ Fixed Department

13‧‧‧Weld Department

2‧‧‧Insulated body

20‧‧‧ docking space

21‧‧‧ top wall

22‧‧‧ bottom wall

23‧‧‧ side wall

24‧‧‧ rear end wall

241‧‧‧Mold hole

25‧‧‧ tongue plate

3‧‧‧Strength

31‧‧‧ motherboard

310‧‧‧through holes

32‧‧‧ fixed board

33‧‧‧ front panel

34‧‧‧ side film

4‧‧‧ Grounding piece

41‧‧‧Fixed tablets

42‧‧‧ soldering piece

5‧‧‧Metal shell

50‧‧‧Protruding

51‧‧‧ top board

52‧‧‧floor

520‧‧‧ buckle area

521‧‧‧Fixed feet

522‧‧‧Bucking protrusion

523‧‧‧Connected area

53‧‧‧ side panels

no

13‧‧‧Weld Department

21‧‧‧ top wall

22‧‧‧ bottom wall

24‧‧‧ rear end wall

25‧‧‧ tongue plate

3‧‧‧Strength

32‧‧‧ fixed board

42‧‧‧ soldering piece

50‧‧‧Protruding

51‧‧‧ top board

52‧‧‧floor

521‧‧‧Fixed feet

522‧‧‧Bucking protrusion

Claims (10)

The socket electrical connector comprises an insulating body provided with a docking space, a terminal and a metal shell fixed to the insulating body, the insulating body comprising a front end wall, the front end wall comprising a top wall and a bottom wall surrounding the docking space And a pair of side walls, the insulative housing further includes an end wall located at a rear end of the docking space and a tongue protruding forwardly from the rear end wall into the docking space, the terminal including being fixed in the tongue plate a contact portion for docking with the mating connector, wherein the metal shell is at least partially exposed in the docking space, the metal shell includes only one pair of plates integrally formed on the front end wall of the insulating body, or the metal The shell comprises only two pairs of plates integrally formed on the front end wall of the insulating body, or the metal shell comprises only three pairs of plates integrally formed on the front end wall of the insulating body, or the metal shell comprises four integrally formed insulation a pair of plates of the front end wall of the body, wherein the four pairs of plates are oppositely disposed top and bottom plates and two side plates connecting the top plate and the bottom plate, and at least one of the four pairs of plates A pair of plate length in the insertion direction of the electrical connector receptacle is less than the depth of the docking space. The socket electrical connector of claim 1, wherein when the metal shell comprises only two pairs of plates integrally formed on the front wall of the insulating body, the two pairs of plates are respectively oppositely disposed and a bottom plate, wherein a length of at least one of the top plate or the bottom plate is smaller than a depth of the docking space in a plugging direction of the socket electrical connector. The socket electrical connector of claim 1, wherein the metal shell comprises only three pairs of plates integrally formed on the front wall of the insulating body, and the three pairs of plates are respectively two side plates and a bottom plate. The socket electrical connector according to any one of claims 1 to 3, wherein the bottom plate comprises a buckle region provided with a fastening protrusion, in a plugging direction of the socket electrical connector The length of the buckle area is greater than one half of the depth of the docking space and less than the depth of the docking space. The socket electrical connector of claim 4, wherein the buckle region is disposed at a pair of sides of the bottom plate, and the pair of latching protrusions are respectively disposed on the pair of buckles. The inner surface of the bottom plate is flush with the inner wall surface of the front end wall, and the fastening protrusion protrudes outward from the docking space for snapping and fixing with the mating connector. The socket electrical connector of claim 1 or 3, wherein the length of the top plate and the two side plates are less than one-half the depth of the docking space in the plugging direction of the socket electrical connector. The socket electrical connector of claim 1 or 2, wherein the top plate is provided with a protruding portion, an inner surface of the protruding portion is flush with an inner wall surface of the insulating body, and the top plate is removed The remainder of the outer portion of the projection is embedded in the front end wall and the front end wall is not exposed. The socket electrical connector of claim 1 or 3, wherein the side plate is provided with a protruding portion, an inner surface of the protruding portion is flush with an inner wall surface of the insulating body, and the side plate is divided The remainder of the outer portion of the projection is embedded in the front end wall and the front end wall is not exposed. The socket electrical connector of claim 1, wherein when the metal shell comprises only two pairs of plates integrally formed on the front wall of the insulating body, the two pairs of plates are respectively opposite side plates. The side panel includes a latching protrusion for snapping the mating connector. The receptacle electrical connector of claim 9, wherein at least one of the side panels has a length less than a depth of the docking space in the plugging direction of the receptacle electrical connector.