TWI451639B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a masking noise interference and electromagnetic interference.

The connector is used between the network and the external device of the computer for data signal transmission. For high-speed data transmission connectors, anti-electromagnetic interference capability is an important performance indicator. At present, a metal shielding housing is generally provided on the connector to achieve electromagnetic interference resistance. The pins extending integrally at the bottom of the shielding case are connected to the main circuit board to form a ground loop, so that the static electricity accumulated on the shielding case is released in time.

A conventional connector is shown in FIG. 1. The connector 500 includes a shielding case 510, an insulative housing 520, and a conductive terminal 530. The shielding shell 510 is provided with an opening 511 on the front surface. The insulative housing 520 has a receiving space 521. The opening 511 is in communication with the receiving space 521 for receiving an external mating connector (not shown). Specifically, the side surface 513 of the shielding shell 510 is provided with a rearwardly extending resilient arm 514. The front end of the resilient arm 514 is connected to the shielding shell 510, and the rear end is a free end. When the connector is mounted on the panel of the external device, the resilient arm 514 interferes with the mounting hole of the panel, thereby disturbing the noise through the resilient arm 514 and then through the shielding housing 510 to the ground loop of the circuit board.

However, the noise interference and electromagnetic interference of the elastic arm 514 of the connector 500 described above. The mask effect is not ideal, and the elastic arm 514 which is trapped in the vertical front surface can only contact the inner wall of the mounting hole of the panel, and the contact area basically depends on the thickness of the panel, so the contact area of the elastic arm 514 and the panel is small. What is more, once the elastic arm 514 has a large manufacturing error or elastic fatigue, the contact with the panel may be unstable, which will cause serious noise interference and electromagnetic interference in the telecommunication transmission.

Therefore, it is necessary to provide an improved electrical connector to improve noise interference and electromagnetic interference masking effects.

It is an object of the present invention to provide an electrical connector that has good resistance to noise and electromagnetic interference.

In order to achieve the above object, the electrical connector of the present invention is mounted on a panel of an external device. The electrical connector includes an insulative housing, a shielding housing, and a plurality of conductive terminals. The plurality of conductive terminals are received in the insulating body. The electrical connector body, the shielding housing shields the electrical connector body, wherein the shielding housing is an integral structure integrally formed from a single metal plate, and includes a shielding body for accommodating the electrical connector body The shielding body has an abutting surface that abuts the external mating connector and an opening that is opened on the mating surface for the mating connector, the shielding body is provided with at least an outwardly extending flange on the flange An arcuate grounding elastic piece is formed to be in contact with the panel, and a span direction of the arcuate grounding elastic piece is parallel to the abutting surface, and both ends of the curved grounding elastic piece are connected to the flange.

When the electrical connector of the present invention is mounted on the panel of the external device, since the flange of the electrical connector is parallel to the abutting surface, and is parallel to the panel, the span direction of the arc-shaped grounding elastic piece on the flange is also parallelly butted. The surface is parallel to the panel, so the arc is grounded The elastic piece is in contact with the inner surface of the panel around the panel mounting hole, and the contact area is determined by the size of the elastic piece, so the contact area is large, and the arc-shaped grounding elastic piece is extended along the curved grounding elastic piece during the pressure contact with the panel. Extending in the span direction, that is, its extension is parallel to the panel, so the contact panel is larger, thereby ensuring electromagnetic interference and noise interference to the ground loop on the circuit board, thereby improving the electromagnetic interference resistance and anti-interference of the electrical connector. The ability of interference to ensure the quality of signal transmission. Moreover, since both ends of the arc-shaped grounding elastic piece are connected to the flange, the curved arc-shaped grounding elastic piece is not easily deformed excessively, and therefore, the contact between the panel and the curved grounding elastic piece is more stable. Furthermore, the integrated structure of the shielded housing of the electrical connector saves assembly steps and reduces manufacturing costs.

Preferably, the curved grounding elastic piece comprises at least one arched portion and at least one concave portion connected to the arched portion. When the arch is pressed, the arch is deformed, and the recess cushions the deformation of the arch.

In a preferred embodiment, the shielding body further has a plurality of sides adjacent to the abutting surface, and the plurality of the side surfaces and the abutting surface collectively enclose a receiving space for receiving the electrical connector body.

Preferably, a support piece is formed at a rear end of the flange, and the support piece abuts against the flange to support the flange. The presence of the support sheet makes the flange more rigid, and when the curved grounding elastic piece is deformed, thereby reinforcing the supporting function of the flange, the arc-shaped grounding elastic piece is not excessively deformed and damaged.

More preferably, the flange is disposed on one of the sides, the side is composed of an upper side and a lower side, and the flange is bent outward from a lower portion of the upper side, The support piece is bent outward from the upper portion of the lower side.

As another preferred embodiment, the electrical connector is a D-shaped connector, the shielding body of the D-shaped connector and the flange are integrally formed by stamping, and the flange is formed on the shielding The perimeter of the body.

As another preferred embodiment, the electrical connector is a network interface connector.

1, 1', 1" ‧‧‧ connectors

10, 10', 10" ‧ ‧ Shielding shell

100, 100’ ‧ ‧ masking ontology

11‧‧‧ docking

110‧‧‧Arc grounding shrapnel

111‧‧‧ openings

112, 112’‧‧‧Flange

113‧‧‧Bounce arm

114‧‧‧Installation port

115‧‧‧Arch

116‧‧‧ recess

117‧‧‧ gap

12‧‧‧ side

121‧‧‧Upper side

123‧‧‧ lower side

125‧‧‧Support film

16‧‧‧First groove

17‧‧‧Clamping buckle

18‧‧‧"

20‧‧‧Insulating body

21‧‧‧ accommodating space

22‧‧‧second groove

24‧‧‧Bumps

30‧‧‧Electrical terminals

4‧‧‧ panel

41‧‧‧Installation holes

500‧‧‧Connector

510‧‧‧Shielding shell

511‧‧‧ openings

513‧‧‧ side

514‧‧‧Flexible arm

520‧‧‧Insulated body

521‧‧‧ accommodating space

530‧‧‧Electrical terminals

Figure 1 is an exploded perspective view of a conventional connector.

2 is a perspective view of a first embodiment of an electrical connector of the present invention.

3 is an exploded perspective view of the electrical connector shown in FIG. 2.

4 is a perspective view of a shield case of the electrical connector shown in FIG. 3.

Figure 5 is a plan view of the shield case shown in Figure 4 .

Fig. 6 is an exploded perspective view showing the mounting of the electrical connector shown in Fig. 2 and the panel of the external device.

Figure 7 is a perspective view of a second embodiment of the electrical connector of the present invention.

Figure 8 is an exploded perspective view of the electrical connector shown in Figure 7.

Figure 9 is a perspective view of a third embodiment of the electrical connector of the present invention.

Figure 10 is an exploded perspective view of the electrical connector shown in Figure 9.

The technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.

Please refer to FIG. 2 to FIG. 3, which shows the first real with the electrical connector 1 of the present invention. Example. As shown, the electrical connector 1 includes a shield housing 10, an insulative housing 20, and a conductive terminal 30. The shielding case 10 is in the shape of a cover for shielding and accommodating the insulative housing 20 . The insulative housing 20 has a receiving space 21 . The conductive terminal 30 is received in the insulative housing 20 to form an electrical connector body. Specifically, a plurality of receiving slots 211 are formed in the receiving space 21 of the insulative housing 20 for receiving the conductive terminals 30, and the ends of the conductive terminals 30 protrude outside the insulating body 20 for use with an external circuit board. Show) connection. The electrical connector 1 of the present embodiment can be used as a network interface connector or an interface connector of other electronic devices.

As shown in the figure, the shielding shell 10 has a shielding body 100 which is integrally formed from a piece of metal plate. Specifically, the shielding body 100 has a square shape, and includes a mating surface 11 for docking with an external connector (not shown) and four side surfaces 12 perpendicular to the mating surface 11, the mating surface 11 being open for The opening 111 into which the connector is inserted is shaped such that the shape of the opening 111 is adapted to the shape of the external butt connector. Specifically, the side surface 12 and the mating surface 11 enclose a receiving space for accommodating the electrical connector body, and an mounting port 114 into which the power supply connector body is mounted is formed at an end opposite to the mating surface 11. Of course, the opening position of the mounting opening 114 is not limited thereto, and it may be opened on the other side surface 12 according to actual needs.

Specifically, the shielding body 10 extends outwardly with a flange 112 parallel to the abutting surface 11 . The flange 112 is provided with an arcuate grounding elastic piece 110 , and the spanning direction of the curved grounding elastic piece 110 is parallel to the abutting surface 11 . As shown in FIG. 2-3, the span direction is the X direction or the -X direction, which is parallel to the abutting surface 11. When the shielding shell 10 is mounted on the panel of the external connector, the arc-shaped grounding elastic piece 110 will be in good contact with the panel to form a ground loop, thereby shielding the noise interference and the electromagnetic interference.

In this embodiment, arcs are respectively disposed on opposite side faces 12 of the shielding body 10. The grounding elastic piece 110 is formed. However, the number of the arcuate grounding elastic pieces 110 is not limited to this embodiment, and may be set according to actual conditions. Since each arc-shaped grounding elastic piece 110 has the same arrangement relationship with each side surface 12, only the arc-shaped grounding elastic piece 110 and one side surface 12 are described below.

More specifically, as shown in FIGS. 4 to 5, the side surface 12 is composed of an upper side surface 121 and a lower side surface 123, and the flange 112 is bent outward from the lower portion of the upper side surface 121, and the angle of the bending is substantially It is a right angle. Both ends of the arcuate grounding elastic piece 110 are connected to the flange 112, and a gap 117 is formed between the curved grounding elastic piece 110 and the flange 112. This arrangement makes the arcuate grounding elastic 110 more elastic. Specifically, the curved grounding elastic piece 110 includes an arch portion 115 and two concave portions 116 connected to both ends of the arch portion 115, and the arcuate portion 115 is curved toward the abutting surface 11, that is, a span direction of the arch portion 115. X or -X is parallel to the abutting face 11, and the direction of curvature of the recess 116 is opposite to the direction of curvature of the arch 115, so that the entire arcuate grounding elastic piece 110 is substantially wavy. When the arch 115 is pressed, the arch 115 is deformed, and the recesses 116 at both ends serve to cushion the deformation of the arch 115.

Of course, the shape of the curved grounding elastic piece 110 of the present invention is not limited thereto, and the number of the arched portions 115 may be one or more, and the number of the concave portions 116 may also be one or more, when the arched portion 115 For one, when the concave portion 116 is one, the curved grounding elastic piece 110 is substantially S-shaped, which can also achieve the above technical effects.

It should be noted that the flange 112 in the above embodiment extends outward from the side surface 12 and is parallel to the mating surface 11, and the arcuate grounding elastic piece 110 is disposed at a position slightly lower than the abutting surface 11. However, the flange 112 can also be formed on the same plane as the mating surface 11, that is, directly extending from the mating surface 11, and then the arc-shaped grounding elastic piece 110 is disposed, which can also achieve the above technical effects.

As a preferred embodiment, as shown in FIG. 4, the upper portion of the lower side 123 is generally bent outwardly by 90 degrees to form a support sheet 125 that abuts against the flange 112 to support the flange 112. The presence of the support piece 125 makes the flange 112 more rigid, and when the curved grounding elastic piece 110 is deformed, thereby reinforcing the supporting action of the flange 112, the curved grounding elastic piece 110 is not excessively deformed and damaged.

Preferably, referring to FIG. 2 to FIG. 3 , the mating surface 11 of the shielding body 100 is provided with two opposite elastic arms 113 extending downwardly at the opening 111 , and the elastic arm 113 makes the shielding shell When the body 10 is assembled with the electrical connector body, it can be better contacted with the mating connector when it is connected to the external mating connector.

In order to better fit the shield case 10 and the insulative housing 20, the present invention improves the shield case 10 and the insulative housing 20. Specifically, referring to FIG. 2-4, a first groove 16 is respectively disposed on opposite sides 12 of the shielding shell 10, and a second groove 22 is opened on an opposite side of the insulating body 20, when the shielding shell is When the 10 is fitted into the insulative housing 20, the first recess 16 and the second recess 22 cooperate. The two opposite sides 12 are further provided with a clamping buckle 17 , and the clamping buckle 17 protrudes inwardly, and the insulating body 20 is correspondingly provided with a protrusion 24 for engaging with the clamping buckle 17 so that the shielding shell The body 10 is more closely fitted to the insulative body 20. The opposite side faces 12 are also respectively provided with a fastening leg 18 at the bottom end, and the fastening leg 18 extends downward for engaging with the circuit board.

Fig. 6 is a schematic exploded view showing the mounting of the electrical connector 1 of the present invention and the panel 4 of the external device. The panel 4 is provided with a mounting hole 41 for projecting the abutting surface 11 of the power supply connector 1. The panel 4 is mounted in parallel with the mating surface 11. Since the flange 112 of the shielding case 10 of the electrical connector 1 is parallel to the abutting surface 11, that is, parallel to the panel 4, the span direction of the arcuate grounding elastic piece 110 on the flange 112 is also parallel to the abutting surface 11, that is, parallel In the panel 4, when the electrical connector 1 is mounted on the panel 4, the curved grounding elastic 110 It interferes with the inner surface of the flat plate around the mounting hole 41. The resisted arcuate grounding elastic piece 110 is deformed, and more directly, the arched portion 115 is deformed by the interference. The contact area of the curved grounding elastic piece 110 with the flat plate is determined by the size of the curved grounding elastic piece 110. For example, in the present embodiment, it is determined by the width and length of the arched portion 115. Therefore, the arcuate grounding elastic piece 110 can be set larger as needed, thereby increasing the contact area. Moreover, during the curved contact of the curved grounding elastic piece 110 with the panel 4, the extension of the curved grounding elastic piece 110 extends in the span direction, that is, the extension thereof is parallel to the panel 4, so the contact area is larger, thereby ensuring that Electromagnetic interference and noise interference are led to the grounding circuit on the circuit board, thereby improving the ability of the electrical connector 1 to resist electromagnetic interference and anti-noise interference, and to ensure the quality of signal data transmission. Furthermore, the integrated structure of the shield case 10 of the present invention saves assembly steps and reduces manufacturing costs.

Figures 7 through 8 illustrate a second embodiment of the electrical connector 1' of the present invention. The electrical connector 1' of the present embodiment is a D-shaped , connector, the shape of the shielding housing 10' is adapted to the D-shaped 埠 connector, the shielding body 100' is frame-shaped, and the flange 112' is formed on The periphery of the body 100' is shielded, and the shielding body 100' and the flange 112' are integrally formed by punching. The opening 111 in the center of the frame-shaped shielding body 100' is for insertion of the docking connector. An arcuate grounding elastic piece 110 is formed on one side of the flange 112', and the flange 112' has a flat plate shape, and the arcuate grounding elastic piece 110 directly extends outward from the flange 112'. The structure of the arc-shaped grounding elastic piece 110 is the same as that of the first embodiment, and therefore will not be described herein.

Similarly, when the electrical connector 1' is mounted on a panel (not shown in this embodiment), the arcuate grounding elastic piece 110 is in contact with the inner surface of the flat plate around the mounting hole. The resisted arcuate grounding elastic piece 110 is deformed, and more directly, the arched portion 115 is deformed by the interference. The contact area of the curved grounding elastic piece 110 and the flat plate is controlled by the curved grounding elastic piece 110. The size is determined, for example, in the present embodiment, by the width and length of the arch 115. Therefore, the arcuate grounding elastic piece 110 can be set larger as needed, thereby increasing the contact area. Moreover, in the process of the curved grounding elastic piece 110 being in pressure contact with the panel, the arc-shaped grounding elastic piece 110 extends in the span direction, that is, its extension is parallel to the panel 4, so the contact area is larger, thereby ensuring electromagnetic Interference and noise interference are led to the ground loop on the circuit board, thereby improving the ability of the electrical connector 1 to resist electromagnetic interference and anti-noise interference, and to ensure the quality of signal data transmission. Moreover, since both ends of the curved grounding elastic piece 110 are connected to the flange 112, the pressed arc-shaped grounding elastic piece 110 is not easily deformed excessively, and therefore, the contact between the panel 4 and the curved grounding elastic piece 110 is more stable. Furthermore, the integrated structure of the shield case 10 of the present invention saves assembly steps and reduces manufacturing costs.

9 to 10 show a third embodiment of the electrical connector 1" of the present invention. This embodiment differs from the second embodiment only in the shielding housing 10", the arc on the shielding housing 10" The number of the grounding elastic pieces 110 is 2. Specifically, the present embodiment provides two curved grounding elastic pieces 110 on both sides of the shielding body 100'. This arrangement is such that when the electrical connector 1" is mounted with the panel, the panel is simultaneously The two arc-shaped grounding elastic pieces 110 are contacted, so that the contact area is larger, thereby forming a plurality of grounding loops, thereby achieving a more shielding effect of electromagnetic interference and noise interference.

It should be noted that the curved grounding elastic piece 110 of the present invention is not limited to the application of the above-mentioned shielding housing 10, 10' or 10", and can be applied to other types and other shapes of shielding housings, thereby adapting to different electrical connections. The requirements of the device can also play the role of shielding electromagnetic interference and noise interference.

The above is only the preferred embodiment of the present invention, and it is of course not possible to limit the scope of the present invention as long as it is made according to the claims of the present invention. Equivalent variations are still within the scope of the invention.

1‧‧‧Connector

100‧‧‧ Masking ontology

11‧‧‧ docking

110‧‧‧Arc grounding shrapnel

111‧‧‧ openings

112‧‧‧Flange

113‧‧‧Bounce arm

12‧‧‧ side

16‧‧‧First groove

17‧‧‧Clamping buckle

18‧‧‧"

30‧‧‧Electrical terminals

Claims (6)

An electrical connector includes an insulative housing, a shielding housing, and a plurality of conductive terminals, wherein the plurality of conductive terminals are received in the insulating body to form an electrical connector body, and the shielding housing shields the electrical connector body; The shielding housing is an integral structure formed by integrally forming a metal plate, and includes a shielding body for accommodating the main body of the electrical connector, the shielding body having an abutting surface that is mated with the external mating connector and An opening for the mating connector to be inserted into the mating surface, the shielding body is provided with at least an outwardly extending flange, and a rear end of the flange is formed with a support piece, and the support piece abuts against the flange Supporting the flange, the flange is provided with an arc-shaped grounding elastic piece that can be in contact with the outer panel, and the arc-shaped grounding elastic piece has a span direction parallel to the abutting surface, the curved grounding elastic piece Both ends are connected to the flange. The electrical connector of claim 1, wherein the curved grounding elastic piece comprises at least one arched portion and at least one recess connected to the arched portion. The electrical connector of claim 1, wherein the shielding body further has a plurality of side surfaces adjacent to the abutting surface, and the plurality of the side surfaces and the abutting surface collectively enclose a receiving space for accommodating the electrical connector body . The electrical connector of claim 1, wherein the flange is disposed on one of the sides, the side being composed of an upper side and a lower side, the flange being from the upper side The lower portion is bent outward, and the support piece is bent outward from an upper portion of the lower side. The electrical connector according to any one of claims 1 to 3, wherein the electrical connector The connector is a D-shaped connector, the shielding body of the D-shaped connector and the flange are integrally formed by stamping, and the flange is formed at a periphery of the shielding body. The electrical connector of claim 4, wherein the electrical connector is a network interface connector.