CN204179307U - USB connector and shielding case assembly thereof - Google Patents

Abstract

The USB connector and its shielding shell assembly, the USB connector includes: an insulating body, the front end of the insulating body is provided with at least two tongue plates parallel to each other, and a partition wall is arranged between two adjacent tongue plates; the shielding shell, the sleeve It is arranged on the outer periphery of the insulating body; the U-shaped shield is inserted on the partition wall of the insulating body, and includes two approximately parallel extension pieces and a connecting part connecting the two extension pieces; wherein, at least one of the front ends of the partition wall A groove is provided on the side, and an elastic arm for extending into the groove and abutting against the U-shaped shield is arranged at a position corresponding to the groove on the shielding shell. The USB connector and its shielding case assembly provided by the utility model make elastic contact between the U-shaped shielding part and the shielding case by abutting against the elastic arm on the U-shaped shielding part, so that the cooperation between the shielding case and the shielding case is ensured. The shielding reliability between the U-shaped shields, in addition, improves the strength of the USB connector.

Description

USB connector and its shielding shell assembly

technical field

The utility model belongs to the technical field of electrical connectors, in particular to a USB connector and a shielding shell assembly thereof.

Background technique

Universal Serial Bus (USB for short) is a serial bus standard connecting computer systems and external devices. It is also a technical specification for input and output interfaces. It is widely used in information communication products such as personal computers and mobile devices. . The USB connector has fast transmission speed, plug-and-play and hot-swappable functions, so it is very popular and widely used. With the development of electronic technology, the existing USB connectors have changed from single-port to dual-port or multi-port electrical connectors to meet the simultaneous multi-plug requirements.

Multi-layer USB connectors usually include an insulating body, a shielding shell wrapped on the insulating body, and a U-shaped shield inserted on the partition wall of the insulating body. The strength is guaranteed, so the strength is poor, and it cannot withstand large torque requirements. Especially when the USB connector is used in vehicle equipment, due to its poor working environment, it cannot meet the torque requirements, and the contact between the shield shell and the U-shaped shield cannot be guaranteed, thereby reducing the shielding reliability of the USB connector.

Utility model content

(1) Technical problems to be solved

The purpose of the utility model is to overcome the defects in the prior art and provide a USB connector and its shielding shell assembly to meet the required torque requirements and have better shielding reliability.

(2) Technical solution

In order to solve the above technical problems, the utility model provides a USB connector, including:

An insulating body, at least two tongue plates parallel to each other are arranged on the front end of the insulating body, and a partition wall is arranged between two adjacent tongue plates;

a U-shaped shielding piece, which is inserted into the partition wall of the insulating body, and includes two substantially parallel extension pieces and a connecting portion connecting the two extension pieces; and

The shielding shell is sleeved on the outer periphery of the insulating body;

Wherein, a groove is provided on at least one side of the front end of the partition wall, and an elastic arm for extending into the groove and abutting against the connecting part of the U-shaped shield is provided at a position corresponding to the groove on the shielding shell.

Wherein, the at least two mutually parallel tongue plates are arranged in a stacked manner.

Wherein, the grooves are arranged on both sides of the front end of the partition wall.

Wherein, the U-shaped shielding part is connected to the shielding case through a buckle structure.

Wherein, at least one side of at least one extension piece of the U-shaped shielding member is provided with an elastic buckle, and the side wall of the shielding shell is provided with a groove corresponding to the elastic buckle on the U-shaped shielding member.

Wherein, a boss between the elastic buckle and the connecting part of the U-shaped shield is arranged on the side of the extension piece provided with the elastic buckle, and the boss divides the extension piece into a wider part of the extension piece and a wider part of the extension piece. Narrow part, the wider part of the extension piece is close to the connecting part of the U-shaped shield; while the narrower part of the extension piece is far away from the connecting part of the U-shaped shield, and the side walls of the shielding shell are respectively provided with bosses corresponding to the extension piece. opening slot.

Wherein, the width of the narrower portion of the extension piece is approximately equal to the width of the shielding shell.

Wherein, the elastic arm includes a root connected to the shield shell and a bent part connected to the root, the width of the root in the direction perpendicular to the insertion direction of the USB male head in the vertical plane is greater than the width of the bent part, and the root can be clamped in the spacer. in the recess of the wall.

Wherein, the elastic arm protrudes outward relative to the insulating body.

Wherein, the elastic arm is arc-shaped.

Wherein, the free end of the elastic arm is arc-shaped.

Wherein, the free end portion of the elastic arm includes a contact section, and the contact section is a plane, which is used to make surface contact with the connecting portion of the U-shaped shielding member.

Wherein, the elastic arm is integrated with the shielding shell.

The present invention also provides a USB connector shielding shell assembly, which includes:

The shielding shell is used to be sleeved on the outer periphery of the insulating body, and elastic arms are arranged on the shielding shell; and

The U-shaped shielding piece includes two substantially parallel extension pieces and a connecting portion connecting the two extension pieces, and the U-shaped shielding piece is connected to the shielding shell through a buckle structure;

Wherein, the elastic arm on the shielding shell is in contact with the connecting portion of the U-shaped shielding member.

Wherein, the elastic arm includes a root connected to the shield shell and a bent part connected to the root, the width of the root in the direction perpendicular to the insertion direction of the USB male head in the vertical plane is greater than the width of the bent part, and the root can be clamped in the spacer. in the recess of the wall.

Wherein, the elastic arm protrudes outward relative to the insulating body.

Wherein, the elastic arm is arc-shaped.

Wherein, the free end of the elastic arm is arc-shaped.

Wherein, the free end of the elastic arm is a plane, and the plane is in surface contact with the connecting portion of the U-shaped shielding member.

Wherein, the elastic arm is integrated with the shielding shell.

(3) Beneficial effects

Compared with the prior art, in the embodiment of the present utility model, a groove is provided on the insulating body of the USB connector, and a shield extending into the groove and abutting against the U-shaped shield is added on the shield shell. The elastic arm makes: on the one hand, the strength between the insulating body and the shielding shell is improved; on the other hand, through the elastic contact between the U-shaped shielding piece and the shielding shell, they are more closely matched, thereby ensuring the shielding shell and the shielding shell Shielding reliability between U-shaped shields. In addition, since the groove is provided on the partition wall on the insulating body, the material is further saved and the manufacturing cost is reduced.

Description of drawings

Fig. 1 is the perspective view of the utility model USB connector;

Fig. 2 is the structural representation of the utility model USB connector;

Fig. 3 is a perspective view of the insulating body of the USB connector of the present invention;

Fig. 4 is a perspective view of the insulating body of the USB connector in Fig. 3 seen from the bottom;

Fig. 5 is a schematic cross-sectional view of the insulating body of the USB connector of the present invention;

Fig. 6 is a perspective view of a U-shaped shield of the USB connector of the present invention;

Fig. 7 is a perspective view of the shielding case of the USB connector of the present invention;

Fig. 8 is a perspective view of the assembly of the insulating body and the shielding shell of the USB connector of the present invention;

Fig. 9 shows the positional relationship between the elastic arm of the shield shell and the U-shaped shield in the assembled state; and

FIG. 10 is a schematic structural view of the shielding case assembly of the USB connector of the present invention.

Detailed ways

The connector of the present invention and its shielding shell assembly will be described in detail below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only illustrative illustrations of the present utility model, and are not intended to limit it in any way. The same reference numerals represent the same or similar parts throughout the drawings.

Figure 1 and Figure 2 show a preferred embodiment of the USB connector according to the present invention. The USB connector in this embodiment is a double-layer USB connector, including an insulating body 1 , a U-shaped shield 2 , and a shielding shell 3 sleeved on the outer periphery of the insulating body 1 .

Specifically, as shown in FIGS. 3 to 5 , the front end of the insulating body 1 is provided with two substantially parallel tongue plates 11 , and a partition wall 12 is provided between adjacent two tongue plates 11 . Grooves 13 are respectively provided on both sides. Two rows of conductive terminals 4 are embedded in the insulating body 1 in isolation from each other, and are used for electrical connection with the USB male connector (not shown) to be inserted under the tongue plate 11 respectively.

It should be noted that although the two tongue plates 11 shown in this embodiment are arranged in a stacked manner, those skilled in the art should understand that the tongue plates 11 can also be arranged side by side.

As shown in FIG. 6 , the U-shaped shield 2 includes two substantially parallel extending pieces 21 and a connecting portion 22 connecting the two extending pieces 21 . The U-shaped shield 2 can be sleeved on the partition wall 12 of the insulating body 1 , that is, the two extension pieces 21 of the U-shaped shield 2 are separately located on the upper and lower sides of the partition wall 12 (see FIG. 2 ). The front end of the insulating body 1 is divided into two upper and lower identical sockets through the U-shaped shielding part 2 inserted on the partition wall 13, and a USB male plug can be inserted into each socket, and the USB male plug inserted into it corresponds to it. The four conductive terminals of the corresponding contacts are electrically connected.

As shown in FIG. 7 , the shielding shell 3 is in the shape of a sleeve surrounded by a metal plate, and is used to be sleeved on the outer periphery of the insulating body 1 , as shown in FIGS. 2 and 8 . At the position corresponding to the groove 13 of the insulating body 1 on the shielding shell 3, an elastic arm 31 for extending into the groove 13 and abutting against the U-shaped shield 2 is provided to ensure that the U-shaped shield 2 and the shielding Contact between shells 3.

In addition, the U-shaped shielding element 2 is connected to the shielding case 3 through buckles, so as to further ensure the contact between the shielding case 3 and the U-shaped shielding element 2 . Specifically, elastic buckles 23 are respectively provided on both sides of the two extension pieces 21 of the U-shaped shielding member 2, and elastic buckles 23 corresponding to the elastic buckles 23 on the U-shaped shielding member 2 are respectively provided on the side walls of the shielding shell 3. The corresponding card slot 32 (as shown in FIG. 7 ). Through the cooperation of the elastic buckle 23 and the slot 32, the U-shaped shield 2 is fixed on the shield shell 3, and can be positioned accurately, and is not easy to shake or fall out due to the plugging and unplugging of the USB male connector. It should be noted that the elastic buckle can also be arranged only on one side or both sides of any extension piece of the U-shaped shielding member, or on one side of two extension pieces.

Further, a boss 26 between the elastic buckle 23 and the connecting portion 22 of the U-shaped shielding member 2 is further provided on the side of the extension piece 21 provided with the elastic buckle 23 . In this embodiment, on both sides of the upper and lower extension pieces 21 of the U-shaped shielding part 2, bosses 26 are respectively provided between the elastic buckle 23 and the connecting part 22 of the U-shaped shielding part 2, and the bosses 26 The extension piece 21 is divided into a wider part 25 of the extension piece and a narrower part 24 of the extension piece, the wider part 25 of the extension piece is close to the connecting part 22 of the U-shaped shield 2; and the narrower part 24 of the extension piece is away from the U-shaped shield 2 The connecting portion 22 of the shielding shell 3 is respectively provided with opening grooves 33 corresponding to the bosses 26 on the extension piece 21, so that when assembled, the bosses 26 snap into the opening grooves 33, thereby further The contact between the shield shell 3 and the U-shaped shield 2 is improved. In addition, the width of the narrower portion 24 of the extension piece is preferably approximately equal to the width of the shielding shell 3, so that both sides of the narrower portion 24 of the extension piece abut against the inner wall of the shielding shell 3, so as to improve the vertical position of the USB connector on the horizontal plane. The strength in the direction of the USB male plug insertion direction.

In order to facilitate the assembly between the shielding shell 3 and the U-shaped shielding member 2, the distance from the elastic buckle 23 to the boss 26 is usually slightly larger than the distance from the slot 32 to the opening groove 33 on the shielding shell 3, but this will cause Poor contact between the shield shell 3 and the U-shaped shield 2 reduces its shielding reliability. The USB connector of the utility model makes the cooperation between the U-shaped shield 2 and the shield shell 3 more tightly by leaning against the elastic arm 31 on the U-shaped shield, thereby ensuring that the shield shell 2 and the U-shaped shield 3 The reliability of the shielding between them, and improve the strength of the USB connector in the insertion direction of the USB male head.

Specifically, the elastic arm 31 includes a root connected to the shield shell 3 and a bent part connected to the root, and the width of the root in the vertical direction (the direction perpendicular to the insertion direction of the USB male head on the vertical plane) is larger than that of the bent part. width, and the width of the root is roughly equal to the height of the groove 13 of the partition wall in the vertical direction, so that the elastic arm 31 can be locked in the groove 13, thereby improving the strength of the USB connector in the vertical direction.

In addition, in order to ensure that the elastic arm 31 is reliably abutted against the U-shaped shield 2 (specifically, the connecting portion 22 of the U-shaped shield 2, as shown in FIG. 9 ), it is preferable that the elastic arm protrudes outward relative to the insulating body 1 , such as a circular arc protruding outward relative to the insulating body 1 . Further, the free end of the elastic arm 23 is preferably arc-shaped, so as to increase the contact area between the elastic arm 31 and the U-shaped shielding member 2 . In addition, as shown in FIG. 7, preferably, the free end portion of the elastic arm 31 includes a contact section 34, which is a plane, and is used to make surface contact with the connecting portion 22 of the U-shaped shielding member to ensure the shielding connection. Especially when the connector is in use, the shielding connection between the U-shaped shielding member 2 and the shielding shell 3 will be affected due to vibration.

Preferably, the elastic arm 31 is preferably integrally made with the shielding shell 3 , for example, formed by stamping.

In addition, the utility model also provides a shielding case assembly for a USB connector, as shown in FIG. and a U-shaped shield 2, including two substantially parallel extension pieces 21 and a connecting portion 22 connecting the two extension pieces 21, the U-shaped shield 2 and the shield shell 3 are connected by a buckle structure; wherein, the shield shell 3 The elastic arm 31 is in contact with the connection portion 22 of the U-shaped shield 2 . Specifically, the elastic arm 31 includes a root connected to the shield shell 3 and a bent part connected to the root, and the width of the root in the vertical direction (the direction perpendicular to the insertion direction of the USB male head on the vertical plane) is larger than that of the bent part. width, and the width of the root is roughly equal to the height of the groove 13 of the partition wall in the vertical direction, so that the elastic arm 31 can be locked in the groove 13, thereby improving the strength of the USB connector in the vertical direction.

In addition, in order to ensure that the elastic arm 31 is reliably abutted against the U-shaped shield 2 (specifically, the connecting portion 22 of the U-shaped shield 2, as shown in FIG. 10 ), it is preferable that the elastic arm protrudes outward relative to the insulating body 1 , such as a circular arc protruding outward relative to the insulating body 1 . Further, the free end of the elastic arm 23 is preferably arc-shaped, so as to increase the contact area between the elastic arm 31 and the U-shaped shielding member 2 . In addition, preferably, the free end portion of the elastic arm 31 includes a contact section 34, which is a flat surface, and is used to make surface contact with the U-shaped shield connection part 22, so as to ensure the shield connection, especially when the connector is in use. , the shield connection between the U-shaped shield 2 and the shield shell 3 will be affected due to vibration.

In addition, the elastic arm 31 is preferably integrally made with the shielding shell 3 .

It should be noted that although the embodiment shown here is a double-layer USB connector, those skilled in the art should understand that the present utility model is also applicable to a USB connector with three or more layers. In addition, the groove 13 can also be provided only on one side of the partition wall 12 of the insulating body 1 , and in this case, only one elastic arm 23 needs to be provided on the shielding case 3 .

The above is only a preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the technical principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims (20)

1. A USB connector, comprising: An insulating body, at least two tongue plates parallel to each other are arranged on the front end of the insulating body, and a partition wall is arranged between two adjacent tongue plates; a U-shaped shielding piece, which is inserted into the partition wall of the insulating body, and includes two substantially parallel extension pieces and a connecting portion connecting the two extension pieces; and The shielding shell is sleeved on the outer periphery of the insulating body; It is characterized in that, A groove is provided on at least one side of the front end of the partition wall, and an elastic arm for extending into the groove and abutting against the connecting portion of the U-shaped shielding member is provided at a position corresponding to the groove on the shielding case. 2. The USB connector according to claim 1, wherein the at least two tongue plates parallel to each other are arranged in a stacked manner. 3. The USB connector according to claim 1, wherein the grooves are arranged on both sides of the front end of the partition wall. 4. The USB connector according to claim 1, wherein the U-shaped shielding member is connected to the shielding shell through a buckle structure. 5. The USB connector according to claim 1, characterized in that, at least one side of at least one extension piece of the U-shaped shield is provided with an elastic buckle, and the side wall of the shield shell is provided with a U-shaped shield. The slot corresponding to the elastic buckle on the part. 6. The USB connector according to claim 5, characterized in that, a boss between the elastic buckle and the connecting part of the U-shaped shield is provided on the side of the extension piece provided with the elastic buckle, and the convex The platform divides the extension piece into a wider part of the extension piece and a narrower part of the extension piece. The wider part of the extension piece is close to the connecting part of the U-shaped shield; while the narrower part of the extension piece is far away from the connecting part of the U-shaped shielding part. Open grooves corresponding to the bosses on the extension piece are respectively arranged on the side walls. 7 . The USB connector according to claim 6 , wherein the width of the narrower portion of the extension piece is approximately equal to the width of the shielding shell. 8 . 8. The USB connector according to claim 1, wherein the elastic arm comprises a root connected to the shield shell and a bent portion connected to the root, and the root is in a vertical plane in a direction perpendicular to the insertion direction of the USB male head The width is larger than the width of the curved part, and the root can be fixed in the groove of the partition wall. 9. The USB connector according to claim 1, wherein the elastic arm protrudes outward relative to the insulating body. 10. The USB connector according to claim 1, wherein the elastic arm is arc-shaped. 11. The USB connector according to claim 1, wherein the free end of the elastic arm is arc-shaped. 12. The USB connector according to claim 1, wherein the free end portion of the elastic arm includes a contact section, and the contact section is a plane for making surface contact with the connecting portion of the U-shaped shield. 13. The USB connector according to claim 1, wherein the elastic arm is integral with the shielding shell. 14. A USB connector shielding shell assembly, characterized in that it comprises: The shielding shell is used to be sleeved on the outer periphery of the insulating body, and elastic arms are arranged on the shielding shell; and The U-shaped shielding piece includes two approximately parallel extension pieces and a connecting portion connecting the two extension pieces, and the U-shaped shielding piece is connected to the shielding shell through a buckle structure; It is characterized in that the elastic arm on the shielding shell is in contact with the connecting portion of the U-shaped shielding member. 15. The shielding case assembly according to claim 14, wherein the elastic arm comprises a root connected to the shielding case and a bent part connected to the root, and the root is in a direction perpendicular to the insertion direction of the USB male head in the vertical plane The width is larger than the width of the curved part, and the root can be fixed in the groove of the partition wall. 16. The shielding shell assembly according to claim 14, wherein the elastic arm protrudes outward relative to the insulating body. 17. The shielding shell assembly according to claim 14, wherein the elastic arm is arc-shaped. 18. The shielding shell assembly according to claim 14, wherein the free end of the elastic arm is arc-shaped. 19. The shielding shell assembly according to claim 14, wherein the free end of the elastic arm is defined as a plane, and the plane is in surface contact with the connecting portion of the U-shaped shielding member. 20. The shielding shell assembly according to claim 14, wherein the elastic arm is integrated with the shielding shell.