CN110797715B

CN110797715B - Electrical connector

Info

Publication number: CN110797715B
Application number: CN201910941819.0A
Authority: CN
Inventors: 冯晓; 曹永金
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-04-23
Anticipated expiration: 2039-09-30
Also published as: CN110797715A

Abstract

The invention discloses an electric connector, which comprises a plurality of first terminals and a plurality of second terminals accommodated in an insulating body, wherein each first terminal is provided with a first butting section, a first extending section and a first bending section, a shielding piece is positioned between a row of first terminals and a row of second terminals, the shielding piece is provided with a first shielding part, a second shielding part arranged at intervals with the first shielding part and at least one connecting part for connecting the first shielding part and the second shielding part, the connecting part is positioned at the outermost side of the row of first terminals along the arrangement direction of the plurality of first terminals, and the projection of the connecting part is at least partially overlapped with the projection of the adjacent first terminals. The projection of the connecting part is overlapped with the projection part of the adjacent first terminal, and the connecting part can shield the electromagnetic wave of the adjacent first terminal, so that the leakage influence of the first terminal in the signal transmission process is reduced, and the interference of an external electronic product on the first terminal is reduced.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly, to an electrical connector for transmitting high frequency signals.

[ background of the invention ]

SerialAttachedSCSI (serial attached small computer system interface) is a new generation of SCSI (small computer system interface) technology, and like the SerialATA (serial advanced technology attachment, SATA) hard disk which is popular nowadays, serial technology is used to obtain higher transmission speed, and the speed of SAS transmission is up to 12Gbps at present. Along with transmission rate's promotion, terminal quantity sets up more, and electric connector's electrical property requirement also improves thereupon, and when a plurality of terminals were in transmission signal, avoided external electronic product to disturb its signal transmission, certainly also need to avoid terminal transmission signal to disturb external electronic product.

The existing SAS connector is generally provided with an intermediate shielding piece between two rows of terminals, which can shield signal interference between the two rows of terminals, but in the process of signal transmission, signals are transmitted along the length direction of the terminals, a magnetic field formed by electrifying each terminal is formed around the terminal, and electromagnetic waves are correspondingly formed, so that the electromagnetic waves of the outermost terminal in one row of terminals can radiate and leak to the outside along the arrangement direction of the terminals, other electronic products outside are easily interfered, and meanwhile, the signal transmission of the SAS connector is easily influenced by the interference of the magnetic field of the electronic products outside.

Therefore, there is a need for a new electrical connector to overcome the above problems.

[ summary of the invention ]

In view of the problems faced by the background art, the present invention provides a structure for shielding at least part of the outermost terminal of a row of terminals by providing a connecting portion on a shield between two rows of terminals, so as to solve the problems of electromagnetic wave radiation and leakage of the outermost terminal.

In order to achieve the purpose, the invention adopts the following technical scheme: an electrical connector, comprising:

an insulating body;

a plurality of first terminals and a plurality of second terminals are accommodated in the insulating body, the plurality of first terminals are arranged in a row, the plurality of second terminals are arranged in a row, each first terminal is provided with a first butt-joint section, a first extending section extending backwards from the first butt-joint section and a first bending section extending from the rear end of the first extending section in a bending way;

a shielding piece, be located one row first terminal and one row between the second terminal, the shielding piece have a first shielding part, with a second shielding part and at least a connecting portion that first shielding part interval set up, connecting portion connect first shielding part with second shielding part, first shielding part shield in first extension section and a plurality of between the second terminal, second shielding part shield in first bending section and a plurality of between the second terminal, it is a plurality of along the array orientation of first terminal, connecting portion are located one row the outside of first terminal, just the projection of connecting portion and adjacent the projection of first terminal at least partially overlaps.

Further, along the arrangement direction of the plurality of first terminals, the plurality of first terminals are all arranged in a flush manner, the thickness of the connecting portion is smaller than that of the first terminals, and the center line of the connecting portion in the thickness direction is approximately overlapped with the center line of the plurality of first terminals in the thickness direction.

Further, along the direction of arrangement of the plurality of first terminals, the plurality of first terminals are all arranged in a flush manner, the thickness of the connecting portion is smaller than that of the first terminals, and the bottom surface of the connecting portion is approximately flush with that of the first terminals.

Further, the distance from the first shielding part to the first extending section is consistent with the distance from the second shielding part to the first bending section.

Further, first shielding part with a groove of stepping down has between the second shielding part, connecting portion correspond and locate at least one side in the groove of stepping down, the groove of stepping down corresponds first extension segment with the department of buckling that first bending section links to each other sets up.

Further, from the groove of stepping down court connecting portion with concave the establishing forms a first recess between the first shielding part, from the groove of stepping down court connecting portion with concave the establishing forms a second recess between the second shielding part, the one end of connecting portion certainly first shielding part corresponds first groove department is buckled, the other end of connecting portion certainly second shielding part corresponds second groove department is buckled.

Furthermore, the connecting portion has a connecting band, the connecting band has a first section and a second section that bends and extends from the first section rear end, the first section with first extension section is parallel, the second section with first bending section is parallel, along a plurality of the array direction of first terminal, the projection of first section with the projection part of first extension section overlaps, the projection of second section with the projection part of first bending section overlaps.

Furthermore, the connecting part is provided with a bridging part connected with the first section and a grounding part integrally connected with the bridging part, and the part of the grounding part protrudes out of the bending part where the first extending section is connected with the first bending section towards the direction of the first bending section.

Furthermore, a fixing piece is provided with two lap joint parts, the two lap joint parts are fixed on the grounding part and correspond to two sides of the bridging part, and at least one lap joint part protrudes out of the bending part where the first extending section is connected with the first bending section along the direction of the first bending section.

Further, the connecting portion has a bridging portion connecting the first segment, a grounding portion integrally connected from the bridging portion, and a projection of the grounding portion overlaps with a projection of the first segment along an arrangement direction of the plurality of first terminals.

Furthermore, the insulating body has a base portion, a plug portion extending forward from the base portion, each second terminal has a second butt-joint section, a second extension section extending backward from the second butt-joint section, and a second bending section bending and extending from a rear end of the second extension section, a plug cavity is provided between a top wall and a bottom wall of the plug portion, the top wall of the plug portion is provided with a plurality of first terminal grooves for accommodating at least part of the first butt-joint sections of the plurality of first terminals, the bottom wall of the plug portion is provided with a plurality of second terminal grooves for accommodating at least part of the second butt-joint sections of the plurality of second terminals, and the first butt-joint section and the second butt-joint section are at least partially exposed in the plug cavity.

Further, the plurality of first terminals include a plurality of first high-speed signal terminals and a plurality of first low-speed signal terminals, and the first high-speed signal terminals are adjacent to the connecting portion in an arrangement direction of the plurality of first terminals.

Further, the shield is closer to the first terminal than the second terminal.

And an electrical connector comprising:

an insulating body;

the shielding piece is positioned between a row of first terminals and a row of second terminals, the shielding piece is provided with a first shielding part, a second shielding part arranged at an interval with the first shielding part and at least one connecting part, the connecting part is connected with the first shielding part and the second shielding part, the first shielding part is shielded between the first extending section and the plurality of second terminals, the second shielding part is shielded between the first bending section and the plurality of second terminals, the connecting part is positioned on the outermost side of the row of first terminals along the arrangement direction of the plurality of first terminals, and the projection of the connecting part is at least partially overlapped with the projection of the adjacent first terminal;

a plurality of first terminal with the shielding part is injection moulding together with a first insulating block and a second insulating block, first insulating block with the second insulating block interval sets up and is fixed in insulator, first extension with first shielding position is in the first insulating block, first bending section with second shielding position is in the second insulating block, first shielding portion with a groove of stepping down has between the second shielding portion, connecting portion correspond and locate at least one side in the groove of stepping down, it corresponds to step down the groove first extension with the department of buckling that first bending section links to each other sets up, and is a plurality of first terminal shows it is right that the groove of stepping down is used for a tool first terminal supports the top.

Further, the insulating body has a base portion and a plug portion extending forward from the base portion, the base portion has a first receiving slot for receiving the first insulating block, the base portion has a second receiving slot for receiving the second insulating block, each of the second terminals has a second mating segment, a second extending segment extending backward from the second mating segment, and a second bending segment bending and extending from a rear end of the second extending segment, a plug cavity is formed between a top wall and a bottom wall of the plug portion, the top wall of the plug portion has a plurality of first terminal slots for receiving at least a portion of the first mating segments of the first terminals, the bottom wall of the plug portion has a plurality of second terminal slots for receiving at least a portion of the second mating segments of the second terminals, and the first mating segments and the second mating segments are at least partially exposed from the plug cavity, the first containing groove and the second containing groove are located behind the inserting cavity.

Furthermore, along the arrangement direction of the plurality of first terminals, the plurality of first terminals are arranged in a parallel and level mode, the thickness of the connecting portion is smaller than that of the first terminals, the bottom surface of the connecting portion is approximately parallel and level with the bottom surface of the first terminals, and the jig has the same plane and abuts against the connecting portion and the first terminals.

Compared with the prior art, the electric connector has the beneficial effects that:

the connecting part is located at the outermost side of the row of the first terminals along the arrangement direction of the first terminals, when the first terminals transmit signals, electromagnetic waves of the first terminals are radiated outwards, and at the moment, the projection of the connecting part is overlapped with the projection part of the adjacent first terminal, so that the connecting part can shield the electromagnetic waves of the adjacent first terminal, thereby reducing the leakage influence of the first terminal in the signal transmission process and reducing the interference of external electronic products on the first terminal. .

The first shielding part is shielded between the first extension section and the plurality of second terminals, and the second shielding part is shielded between the first bending section and the plurality of second terminals, so that interference of the second terminals on the first terminals is prevented, and the transmission performance of the first terminals is better.

[ description of the drawings ]

Fig. 2 is an exploded perspective view of an electrical connector according to an embodiment of the present invention;

fig. 1 is a perspective assembly view of an electrical connector according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic view of the structure of the shield;

fig. 6 is a side view of a plurality of first terminals, second terminals, and shields;

FIG. 7 is a schematic structural view of the first terminal before bending;

FIG. 8 is a schematic view of the first terminal during bending;

fig. 9 is a schematic structural view of the first terminal after being bent.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

As shown in fig. 1-3, the electrical connector 100 of the present invention is configured to mate with a mating connector (not shown), and the electrical connector 100 is mounted on a circuit board (not shown). In this embodiment, the electrical connector 100 is a connector for transmitting high frequency signals, i.e., an SAS connector. Of course, in other embodiments, the electrical connector 100 may be other types of connectors, such as SATA connectors, or other connectors for transmitting high frequency signals.

For convenience of description, the direction in which the electrical connector 100 is mated with the mating connector is taken as a front-back direction, and the electrical connector 100 is mated with the mating connector forwards.

The electrical connector 100 includes an insulative housing 1, a plurality of first terminals 2 and a plurality of second terminals 3 received in the insulative housing 1, wherein the plurality of first terminals 2 are arranged in a row, the plurality of second terminals 3 are arranged in a row, and the plurality of first terminals 2 are located above the plurality of second terminals 3, but in other embodiments, the plurality of first terminals 2 may also be located below the plurality of second terminals 3. A shield 4 is located between a row of the first terminals 2 and a row of the second terminals 3 and closer to the first terminals 2 than to the second terminals 3. The first terminals 2 and the shields 4 are injection molded together with a first insulating block 5 and a second insulating block 6, and the first insulating block 5 and the second insulating block 6 are arranged at intervals and fixed on the insulating body 1.

As shown in fig. 1 to 4, the insulating housing 1 has a base 11, a plug portion 12 extending forward from the base 11, a plug cavity 121 is formed between a top wall and a bottom wall of the plug portion 12, the top wall of the plug portion 12 is provided with a plurality of first terminal slots 122 for receiving a plurality of the first terminals 2, and the bottom wall of the plug portion 12 is provided with a plurality of second terminal slots 123 for receiving a plurality of the second terminals 3. The base 11 has a first receiving slot 112 for receiving the first insulating block 5, the base 11 has a second receiving slot 113 for receiving the second insulating block 6, and the first receiving slot 112 and the second receiving slot 113 are located behind the inserting cavity 121.

The base 11 includes a mounting block 111 disposed at an interval along the arrangement direction of the plurality of first terminals 2 and respectively located at the outermost side of the row of first terminals 2, the rear end surface of each mounting block 111 is recessed forward to form the second receiving groove 113, two sides of the second insulating block 6 are respectively provided with a slider 61, the slider 61 is matched with the second receiving groove 113 to receive the second insulating block 6 in the base 11, the second insulating block 6 and the plurality of first terminals 2 are exposed between the two mounting blocks 111, so as to facilitate installation, and make the structure of the insulating body 1 simpler and facilitate mold design. The base 11 has an opening 114 extending upward through the upper end of the base 11, and the opening 114 is communicated with the first receiving slot 112 and exposes a part of the first insulating block 5 for convenient installation.

A first bump 51 is provided at the rear end of the first insulating block 5 in an upward protruding manner, a limiting surface 115 is provided at the front end of the base 11 close to the opening 114, the first bump 51 abuts against the limiting surface 115 to limit, so as to prevent the first insulating block 5 from being inserted too far, and increase the force application area for installation, so as to facilitate installation.

The front end of the first insulating block 5 is provided with three second protruding blocks 52 protruding downwards, the bottom of the first accommodating groove 112 is provided with three clamping grooves 116 corresponding to the second protruding blocks 52 protruding downwards, the second protruding blocks 52 and the clamping grooves 116 are buckled to form a buckling structure, so that the first insulating block 5 is prevented from being separated from the insulating body 1, the first terminal 2 is ensured to be stably installed, and the first terminal 2 is beneficial to stable butt joint in the using process. Of course, in other embodiments, one or two or more second protrusions 52 and clamping grooves 116 may be provided, and the connection between the first insulating block 5 and the insulating body 1 is more stable when the number of the second protrusions 52 and the clamping grooves 116 is more.

As shown in fig. 3 and 6, the plurality of first terminals 2 include a plurality of first high-speed signal terminals 21 and a plurality of first low-speed signal terminals, and two of the first high-speed signal terminals 21 are located at the outermost side of a row of the first terminals 2 along the arrangement direction of the plurality of first terminals 2. Each of the first terminals 2 has a first butt section 22, a first extension section 23 extending backward from the first butt section 22, and a first bending section 24 bending and extending downward from the rear end of the first extension section 23, and a first welding section 25 extending from the end of the first bending section 24 and bending backwards and downwards, a part of the first butt-joint section 22 is accommodated in the first terminal groove 122 and exposed to the plug cavity 121, the first extension section 23 is parallel to the horizontal plane, the included angle between the first bending section 24 and the first extension section 23 is 90 degrees, the first soldering section 25 is parallel to the first extension section 23 and soldered to the circuit board, of course, in other embodiments, the first bending portion 24 may also extend from the rear end of the first extending portion 23 to bend upwards, and the included angle between the first bending section 24 and the first extending section 23 can be other angles. Along the arrangement direction of the plurality of first terminals 2, the plurality of first terminals 2 are all arranged in parallel and level.

Each of the second terminals 3 has a second butt-joint section 31, a second extension section 32 extending backward from the second butt-joint section 31, and a second bending section 33 bending and extending downward from the rear end of the second extension section 32, and a second welding section 34 extending from the end of the second bending section 33 and bending backwards and downwards, a part of the second butt-joint section 31 is accommodated in the second terminal slot 123 and exposed to the plug cavity 121, the second extending section 32 is parallel to the horizontal plane, the included angle between the second bending section 33 and the second extending section 32 is 90 degrees, the second soldering section 34 is parallel to the second extension section 32 and soldered to the circuit board, of course, in other embodiments, the second bending portion 33 may also extend from the rear end of the second extending portion 32 to bend upwards, and the included angle between the second bending section 33 and the second extending section 32 can be other angles.

As shown in fig. 2, fig. 3 and fig. 5, the shielding member 4 is a metal sheet, and is formed by integrally stamping a first shielding portion 41, a second shielding portion 42 and two connecting portions 43, which are arranged at an interval from the first shielding portion 41, two of the connecting portions 43 are respectively connected to the first shielding portion 41 and two sides of the second shielding portion 42, the first shielding portion 41, the second shielding portion 42 and two of the connecting portions 43 jointly form an abdicating groove 44, the abdicating groove 44 corresponds to a bending portion where the first extending section 23 and the first bending section 24 are connected, the first extending section 23 and the first shielding portion 41 are fixed to the first insulating block 5, and the first bending section 24 and the second shielding portion 42 are fixed to the second insulating block 6. The first shielding portion 41 is parallel to the first extending portion 23 and is shielded between the first extending portion 23 and the plurality of second terminals 3, and the second shielding portion 42 is parallel to the first bending portion 24 and is shielded between the first bending portion 24 and the plurality of second terminals 3. In the circular telegram circuit, first shielding part 41 with be the capacitive between the first extension section 23, second shielding part 42 with be the capacitive between the first bending section 24, work as first shielding part 41 with second shielding part 42 with when first terminal 2 distance is more nearly, under the unchangeable condition to the area, first shielding part 41 with the capacitive between the first extension section 23 diminishes, the impedance of first extension section 23 diminishes, second shielding part 42 with the capacitive between the first bending section 24 diminishes, the impedance of first bending section 24 diminishes, in addition, first shielding part 41 with second shielding part 42 still is favorable to preventing second terminal 3 is right first terminal 2 disturbs, makes a plurality ofly first terminal 2's transmission performance is better. When the distance from the first shielding portion 41 to the first extending section 23 is the same as the distance from the second shielding portion 42 to the first bent section 24, the impedance of the first extending section 23 is the same as the impedance of the first bent section 24, and the signal transmission stability of the first terminal 2 is improved.

In the process of molding, there are two molding methods of injection molding the plurality of first terminals 2 and shields 4 together with the first insulating block 5 and the second insulating block 6. The first is that a plurality of the first terminals 2 and the shielding member 4 are bent and formed at first, and the shielding member 4 and the plurality of the first terminals 2 are arranged at intervals through a positioning member of an injection mold, and then are injection molded together with the first insulating block 5 and the second insulating block 6, however, in this way, when injection molding is performed, because injection molding is required, two sets of demolding mechanisms need to be arranged to respectively demold the first insulating block 5 and the second insulating block 6, and because the first insulating block 5 and the second insulating block 6 need to be respectively injection molded on the first extending section 23 and the first bending section 24, interference between the two demolding mechanisms and interference between the demolding mechanisms and directions of the positioning member of the injection mold and the like need to be considered, when an angle between the first extending section 23 and the first bending section 24 is large, although the two stripping mechanisms can also respectively strip the first insulating block 5 and the second insulating block 6 in the same direction, at this time, the push rod ejection surfaces of the two stripping mechanisms are respectively arranged for the ejection planes of the first insulating block 5 and the second insulating block 6, but consideration needs to be given to the stripping positions, the stripping part structures, the power mechanisms and other factors of the two stripping mechanism structures, so as to increase the design difficulty, complicate the design, increase the processing cost, and even when the angle between the first extending section 23 and the first bending section 24 is too small, such as smaller than 90 °, the stripping directions of the first insulating block 5 and the second insulating block 6 are different and cannot be located in the same direction, so that the two stripping mechanisms interfere with each other, and the volumes of the first insulating block 5 and the second insulating block 6 are not enough to avoid the two stripping mechanisms in a sufficient space due to the volume limitation of the electrical connector 100, the first insulating block 5 and the second insulating block 6 cannot be simultaneously demolded at one time, and an injection molding mechanism for injection molding a plurality of the first terminals 2 and the shields 4 together with the first insulating block 5 and the second insulating block 6 cannot be realized.

A second method is a method adopted in this embodiment, as shown in fig. 7 to 9, that is, before the first terminal 2 and the shielding element 4 are bent, the shielding element 4 and the plurality of first terminals 2 are both provided with a tape (not shown) and are in a flat state, the shielding element 4 and the plurality of first terminals 2 are arranged at intervals by an injection mold (not shown), and then the first insulating block 5 and the second insulating block 6 are simultaneously injection-molded by the injection mold, wherein the first insulating block 5 covers the first extending section 23 and the first shielding portion 41, and the second insulating block 6 covers the first bending section 24 and the second shielding portion 42. Placing the injection molded workpiece on a jig 8, at this time, if the shielding element 4 is not provided with the abdicating groove 44 at the preset bending position, the jig 8 will be abutted to the shielding element 4, and cannot be abutted to the plurality of first terminals 2, when bending, the plurality of first terminals 2 are not supported and limited by the jig 8, and are easy to deform, and the bending angle of the first terminals 2 cannot reach the expected bending angle, therefore, the abdicating groove 44 needs to be provided, and the abdicating groove 44 is provided corresponding to the preset bending position where the first extending section 23 and the first bending section 24 are connected, at this time, the plurality of first terminals 2 expose the abdicating groove 44, so that the bending angle of the jig 8 passes through and abuts against the plurality of first terminals 2, and at the same time, the jig 8 is also abutted to the connecting portion 43, the second insulating block 6 is clamped in the jig 8, when bending, a plurality of first terminals 2 and the shielding piece 4 are bent together in the vertical direction by a bending punch 9, and when bending to a certain angle, the first terminals 2 and the shielding piece 4 are further bent together in the horizontal direction by another bending punch 9, so that the first extending section 23 and the first bending section 24 are bent to form an included angle of 90 degrees.

In the second injection molding method, it is not necessary to consider that the position and direction of the first insulating block 5 and the second insulating block 6 are changed correspondingly due to the angle between the first extending section 23 and the first bending section 24, so as to affect the design of the demolding mechanism, reduce the design difficulty, simplify the structural design, and accordingly reduce the processing cost, and the first insulating block 5 is used for fixing the first extending section 23, facilitating the positioning when the first terminal 2 is bent, preventing the first extending section 23 from being deformed when positioned, the second insulating block 6 is used for fixing the first bending section 24, preventing the first bending section 24 from being deformed when bent, facilitating the fixing of a plurality of first terminals 2 according to a specified distance, and the first insulating block 5 and the second insulating block 6 integrally form a plurality of first terminals 2, the first terminals 2 are not easy to deform to affect the electrical performance of the first terminals 2, the first terminals 2 are conveniently mounted in the insulation body 1 together, in addition, the shielding piece 4 is favorably fixed to the first insulation block 5 and the second insulation block 6, the relative distance between the shielding piece 4 and the first terminals 2 is ensured, and the signal transmission stability of the first terminals 2 is favorably ensured.

In addition, the setting of the abdicating groove 44 makes the shielding member 4 only can produce the resilience force at the connecting portion 43 when bending, and then the resilience force of the shielding member 4 when bending is reduced, so as to reduce the possibility that the resilience force of the shielding member 4 is applied to the second insulating block 6 to cause the deformation of the first terminal 2, which is beneficial to improving the electrical performance of the first terminal 2 and the service life of the electrical connector 100.

As shown in fig. 5, from the abdicating groove 44 towards the connecting portion 43 with the first shielding portion 41 is concavely provided with a first groove 45, from the abdicating groove 44 towards the connecting portion 43 with the second shielding portion 42 is concavely provided with a second groove 46, one end of the connecting portion 43 is from the first shielding portion 41 corresponds to the first groove 45 and is bent, and the other end of the connecting portion 43 is from the second shielding portion 42 corresponds to the second groove 46 and is bent. The first groove 45 and the second groove 46 are arranged to facilitate bending of the connecting portion 43, and plastic materials are filled in the first groove 45 and the second groove 46 to increase the flow area of the plastic materials and correspondingly enhance the flowability, so that the combination of the first insulating block 5 and the second insulating block 6 with the shielding member 4 is more stable.

As shown in fig. 2, 3, 5 and 6, the connection portion 43 is located at the outermost side of the row of the first terminals 2 and is correspondingly disposed at two sides of the avoiding groove 44, but in other embodiments, the connection portion 43 may also be located at one side of the avoiding groove 44.

The connecting portion 43 has a connecting band 431, the connecting band 431 has a first section 432 and a second section 433 that extends from the back end of the first section 432 in a bending manner, the first section 432 is bent upward from the position where the first shielding portion 41 corresponds to the first groove 45, the second section 433 is bent from the position where the second shielding portion 42 corresponds to the second groove 46, the first section 432 is parallel to the first extending section 23, the second section 433 is parallel to the first bending section 24, and along the arrangement direction of the first terminals 2, the projection of the first section 432 overlaps with the projection of the first extending section 23, and the projection of the second section 433 overlaps with the projection of the first bending section 24.

When a plurality of first terminals 2 are transmitting signals, electromagnetic waves of the first terminals 2 are radiated outwards, and at this time, since the connection portion 43 is located at the outermost side of a row of the first terminals 2, and the projection of the first segment 432 overlaps with the projection of the first extension segment 23, and the projection of the second segment 433 overlaps with the projection of the first bending segment 24, the connection portion 43 can shield the electromagnetic waves of the adjacent first terminals 2, thereby reducing the leakage influence of the first terminals 2 in the signal transmission process, and reducing the interference of external electronic products on the first terminals 2. By the first segment 432 being parallel to the first extension segment 23, and the second segment 433 being parallel to the first bending segment 24, the maximum shielding area of the connection band 431 for the first terminal 2 is achieved, and the signal transmission consistency and stability of the first terminal 2 are facilitated. Of course, in other embodiments, the projection of the first segment 432 and the projection of the second segment 433 may also completely cover the projection of the corresponding first terminal 2, and in this case, the connection portion 43 has better interference resistance to the first terminal 2.

In addition, the first section 432 and the second section 433 of the same shielding member 4 are used for shielding the first terminal 2, so that the problem of signal transmission different from that of the first shielding part 41 and the second shielding part 42 is solved, other parts are not required to be arranged for solving different problems, the design of installation relation and structural problems among the parts is omitted, the consistency of the same shielding member 4 is better, and the signal transmission of the first terminal 2 is more facilitated. On the other hand, the terminal located at the outermost side of the row of the first terminals 2 is the first high-speed signal terminal 21, the first high-speed signal terminal 21 mainly transmits a high-frequency signal, and the high-frequency signal is more likely to leak to the outside and be interfered by the outside, so that the projection of the connecting portion 43 overlaps with the projection of the adjacent first terminal 2, which is beneficial to preventing the electromagnetic wave of the first high-speed signal terminal 21 from leaking and preventing the outside from interfering with the transmission of the high-frequency signal of the first high-speed signal terminal 21, and improving the transmission speed of the first high-speed signal terminal 21.

After the first terminal 2 is bent, the transmission direction of the current between the first extending section 23 and the first bending section 24 changes, the radiation direction of the electromagnetic wave changes correspondingly, the signal leakage is more remarkable, and the corresponding outside is more likely to interfere with the signal transmission of the first terminal 2 to influence the signal transmission speed, so that the shielding effect of the connecting part 43 is enhanced by shielding the bent part where the first extending section 23 and the first bending section 24 are connected through the first section 432 and the second section 433, the influence of the signal leakage is further reduced, and the interference influence of the outside on the signal transmission of the first terminal 2 is weakened.

As shown in fig. 6, if the thickness of the sheet of the shielding member 4 is smaller than that of the first terminal 2, then the thickness of the corresponding connecting portion 43 is smaller than that of the first terminal 2, and at this time, the resilience force of the connecting portion 43 after bending is relatively smaller than that when the thickness of the connecting portion 43 is greater than or equal to that of the first terminal 2, then the first insulating block 5 and the second insulating block 6 hold the shielding member 4 with a smaller holding force, and the thicknesses of the first insulating block 5 and the second insulating block 6 are relatively smaller, thereby reducing the overall height of the electrical connector 100.

The bottom surface of the connecting portion 43 is substantially flush with the bottom surface of the first terminal 2, so that the jig 8 can be conveniently abutted against the connecting portion 43 and the first terminal 2 on the same plane, the processing is convenient, the processing tolerance can be reduced, and in addition, when the thickness of the connecting portion 43 is smaller than that of the first terminal 2. Of course, in other embodiments, the center line of the connecting portion 43 in the thickness direction substantially coincides with the center lines of the plurality of first terminals 2 in the thickness direction, so that the shielding range is uniform, which is beneficial to the signal transmission stability of the first terminals 2.

As shown in fig. 5 and 6, the connecting portion 43 further has a bridging portion 434 connecting the first segment 432, and a grounding portion 435 integrally connected with the bridging portion 434, wherein a portion of the grounding portion 435 protrudes out of the bending portion where the first extending segment 23 is connected with the first bending segment 24 in the direction of the first bending segment 24, so as to further shield the bending portion and prevent external interference, and the grounding portion 435 further has a function of connecting tape. Along the arrangement direction of the plurality of first terminals 2, the projection of the grounding portion 435 partially overlaps the projection of the first segment 432, so as to further shield the outermost first terminal 2 on the basis of the first segment 432, thereby enhancing the anti-interference effect.

As shown in fig. 1 and 2, a fixing member 7 is respectively disposed on the two mounting blocks 111, one end of the fixing member 7 has two overlapping portions 71, the other end of the fixing member 7 passes through the mounting blocks 111 from top to bottom to be welded and fixed with the circuit board and grounded, the two overlapping portions 71 are welded and fixed on the grounding portion 435 and overlapped with the grounding portion 435, the overlapping portions 71 are exposed at the mounting blocks 111, the two overlapping portions 71 are correspondingly located at two sides of the bridging portion 434, and one overlapping portion 71 protrudes out of the bent portion where the first extending section 23 is connected with the first bending section 24 along the direction of the first bending section 24. Of course, in other embodiments, the overlapping portion 71 may be provided with one, or three or more, when the overlapping portion 71 is provided with more, the fixing of the fixing member 7 and the shielding member 4 is more stable, and the shielding area of the first terminal 2 by the plurality of overlapping portions 71 is larger. The fixing member 7 has a function of fixing the electrical connector 100 to the circuit board to prevent the electrical connector 100 from being displaced during the mating process to affect the electrical connection with the mating connector, and the fixing member 7 has a grounding function to ground the shielding member 4. In addition, if the overlapping portion 71 overlaps the grounding portion 435, correspondingly, along the arrangement direction of the plurality of first terminals 2, the overlapping portion 71 has a shielding effect on the first terminals 2, so as to further prevent external interference, and the overlapping portion 71 is located at a bent portion and further shields the bent portion.

In summary, the electrical connector 100 of the present invention has the following beneficial effects:

(1) the connecting portion 43 is located at the outermost side of the row of the first terminals 2 along the arrangement direction of the plurality of first terminals 2, when the plurality of first terminals 2 are transmitting signals, the electromagnetic wave of the first terminal 2 is radiated outwards, and at this time, the projection of the connecting portion 43 overlaps with the projection of the adjacent first terminal 2, so that the connecting portion 43 can shield the electromagnetic wave of the adjacent first terminal 2, thereby reducing the leakage influence of the first terminal 2 during signal transmission and preventing the external interference with the first terminal 2.

The first shielding part 41 is shielded between the first extending section 23 and the plurality of second terminals 3, and the second shielding part 42 is shielded between the first bending section 24 and the plurality of second terminals 3, which is beneficial to preventing the second terminals 3 from interfering with the first terminals 2, so that the transmission performance of the plurality of first terminals 2 is better.

(2) Before the first terminal 2 and the shielding element 4 are bent and formed, the shielding element 4 and the plurality of first terminals 2 are provided with a material belt (not shown) and are in a flat state, the shielding element 4 and the plurality of first terminals 2 are arranged at intervals through an injection mold (not shown), and then the first insulating block 5 and the second insulating block 6 are simultaneously injection-molded by the injection mold, wherein the first insulating block 5 is wrapped outside the first extending section 23 and the first shielding part 41, and the second insulating block 6 is wrapped outside the first bending section 24 and the second shielding part 42. Placing the injection molded workpiece on the jig 8, at this time, if the shielding element 4 is not provided with the abdicating groove 44 at the preset bending position, the jig 8 will be abutted against the shielding element 4, and cannot be abutted against the plurality of first terminals 2, when bending, the plurality of first terminals 2 are not supported and limited by the jig 8, and are easy to deform, and the bending angle of the first terminals 2 cannot reach the expected bending angle, therefore, the abdicating groove 44 needs to be provided, and the abdicating groove 44 is provided corresponding to the preset bending position where the first extending section 23 and the first bending section 24 are connected, at this time, the plurality of first terminals 2 expose the abdicating groove 44, so that the bending angle of the jig 8 passes through and abuts against the plurality of first terminals 2, and at the same time, the jig 8 is also abutted against the connecting portion 43, so that the plurality of first terminals 2 and the shielding element 4 are bent together, the first bent section is formed accordingly and the second shield portion 42 is bent together with the first bent section.

This kind of injection moulding method need not to consider because first extension section 23 with the angle between the first bending section 24 makes first insulating block 5 with the corresponding change of position direction of second insulating block 6 causes the influence to demoulding mechanism design, reduces the design degree of difficulty, makes structural design simpler, and is corresponding, and the processing cost reduces, in addition, the setting of groove 44 of stepping down makes shield 4 only can be in when bending connecting portion 43 department produces the resilience force, and then whole shield 4 resilience force when bending reduces, and then reduces shield 4's resilience force is right second insulating block 6 produces the effort and arouses the possibility that first terminal 2 warp, is favorable to improving the electrical properties of first terminal 2 and electric connector 100's life.

Simultaneously, connecting portion 43 corresponds the groove 44 of stepping down is located first extension section 23 with the department of buckling that first bending section 24 links to each other, first terminal 2 is after buckling, and the electric current is in first extension section 23 with the direction of transmission of first bending section 24 changes, and the radiation direction of corresponding its electromagnetic wave changes, and signal leakage is more showing, and corresponding external world more interferes with the signal transmission of first terminal 2 and influences signal transmission speed, consequently, through connecting portion 43 shields first extension section 23 with the department of buckling that first bending section 24 links to each other strengthens the shielding effect of connecting portion 43, further reduces the influence of signal leakage and weakens external world to the interference effect of the signal transmission of first terminal 2.

(3) The grounding portion 435 protrudes out of the bending portion where the first extending portion 23 is connected to the first bending portion 24 in the direction of the first bending portion 24, so as to further shield the bending portion and prevent external interference.

(4) The fixing member 7 has two overlapping portions 71, the two overlapping portions 71 are fixed to the grounding portion 435 and correspond to two sides of the bridging portion 434, and the overlapping portions 71 protrude out of the bending portion where the first extending section 23 is connected with the first bending section 24 along the direction of the first bending section 24, so as to further shield the bending portion; in addition, the overlapping portion 71 and the grounding portion 435 are overlapped in thickness, so that a shielding area is increased, and external interference is further prevented.

(5) It is a plurality of first terminal 2 is the parallel and level setting, and is convenient first terminal 2 bends to be favorable to first terminal 2's signal transmission uniformity and stability. The bottom surface of the connecting portion 43 is substantially flush with the bottom surface of the first terminal 2, so that the jig 8 can be conveniently abutted against the connecting portion 43 and the first terminal 2 on the same plane, the processing is convenient, and the processing tolerance can be reduced. The thickness of the connecting portion 43 is smaller than the thickness of the first terminal 2, the resilience force of the connecting portion 43 after bending is relatively smaller than the resilience force when the thickness of the connecting portion 43 is greater than or equal to the thickness of the first terminal 2, the first insulating block 5 and the second insulating block 6 hold the shield 4 with a smaller holding force, the thickness of the first insulating block 5 and the second insulating block 6 is relatively smaller, and the overall height of the electrical connector 100 is reduced.

(6) The plurality of first terminals 2 include a plurality of first high-speed signal terminals 21 and a plurality of first low-speed signal terminals, and the first high-speed signal terminals 21 are located at outermost sides of a row of the first terminals 2 in an arrangement direction of the plurality of first terminals 2. The outermost terminal of the row of first terminals 2 is the first high-speed signal terminal 21, the first high-speed signal terminal 21 mainly transmits high-frequency signals, and the high-frequency signals are more likely to leak to the outside and be interfered by the outside, so that the projection of the connecting portion 43 overlaps with the adjacent projection of the first high-speed signal terminal 21, which is beneficial to preventing the electromagnetic wave of the first high-speed signal terminal 21 from leaking and preventing the outside from interfering with the transmission of the high-frequency signals of the first high-speed signal terminal 21, and improves the transmission speed of the first high-speed signal terminal 21.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector, comprising:

an insulating body;

a shielding piece, be located one row first terminal and one row between the second terminal, the shielding piece have a first shielding part, with a second shielding part and at least a connecting portion that first shielding part interval set up, connecting portion connect first shielding part with second shielding part, first shielding part shield in first extension section and a plurality of between the second terminal, second shielding part shield in first bending section and a plurality of between the second terminal, connecting portion are located one row the outside of first terminal is along a plurality of the array orientation of first terminal, the projection of connecting portion and adjacent the projection of first terminal is at least partly overlapped.

2. The electrical connector of claim 1, wherein the plurality of first terminals are arranged flush with each other in an arrangement direction of the plurality of first terminals, the connecting portion has a thickness smaller than that of the first terminals, and a center line in a thickness direction of the connecting portion substantially coincides with a center line in the thickness direction of the plurality of first terminals.

3. The electrical connector of claim 1, wherein a plurality of the first terminals are arranged flush with each other in an arrangement direction of the plurality of the first terminals, the connecting portion has a thickness smaller than that of the first terminals, and a bottom surface of the connecting portion is substantially flush with a bottom surface of the first terminals.

4. The electrical connector of claim 1, wherein a distance from the first shield portion to the first extension is substantially the same as a distance from the second shield portion to the first bend.

5. The electrical connector of claim 1, wherein an abdicating groove is formed between the first shielding part and the second shielding part, the connecting part is correspondingly disposed on at least one side of the abdicating groove, and the abdicating groove is disposed corresponding to a bending position where the first extending section is connected with the first bending section.

6. The electrical connector of claim 5, wherein a first recess is formed from the receding groove toward a position between the connecting portion and the first shielding portion, a second recess is formed from the receding groove toward a position between the connecting portion and the second shielding portion, one end of the connecting portion is bent from a position where the first shielding portion corresponds to the first recess, and the other end of the connecting portion is bent from a position where the second shielding portion corresponds to the second recess.

7. The electrical connector of claim 1, wherein the connecting portion has a connecting band, the connecting band has a first section and a second section extending from a rear end of the first section in a bent manner, the first section is parallel to the first extending section, the second section is parallel to the first bent section, and a projection of the first section overlaps a projection of the first extending section and a projection of the second section overlaps a projection of the first bent section along an arrangement direction of the plurality of first terminals.

8. The electrical connector as claimed in claim 7, wherein the connecting portion has a bridge portion connected to the first section, and a grounding portion integrally connected to the bridge portion, and a portion of the grounding portion protrudes out of the bent portion where the first extending section is connected to the first bending section in a direction of the first bending section.

9. The electrical connector as claimed in claim 8, wherein a fixing member has two bridging portions fixed to the ground portion and corresponding to both sides of the bridge portion, and at least one of the bridging portions protrudes in a direction of the first bent portion from a bent portion where the first extension portion is connected to the first bent portion.

10. The electrical connector of claim 7, wherein the connecting portion has a bridge portion connecting the first sections, a ground portion integrally connected from the bridge portion, and a projection of the ground portion overlaps a projection of the first sections in an arrangement direction of the plurality of first terminals.

11. The electrical connector of claim 1, wherein the housing has a base, a mating portion extending forward from the base, each of the second terminals has a second mating segment, a second extension segment extending backward from the second mating segment, and a second bending segment extending from a rear end of the second extension segment, a mating cavity is formed between a top wall and a bottom wall of the mating portion, the top wall of the mating portion has a plurality of first terminal slots for receiving at least a portion of the first mating segments of the first terminals, the bottom wall of the mating portion has a plurality of second terminal slots for receiving at least a portion of the second mating segments of the second terminals, and the first mating segments and the second mating segments are at least partially exposed from the mating cavity.

12. The electrical connector of claim 1, wherein the plurality of first terminals include a plurality of first high-speed signal terminals and a plurality of first low-speed signal terminals, the first high-speed signal terminals being immediately adjacent to the connecting portion in an arrangement direction of the plurality of first terminals.

13. The electrical connector of claim 1, wherein the shield is closer to the first terminal than the second terminal.

14. An electrical connector, comprising:

an insulating body;

the shielding piece is positioned between a row of first terminals and a row of second terminals, the shielding piece is provided with a first shielding part, a second shielding part arranged at an interval with the first shielding part and at least one connecting part, the connecting part is connected with the first shielding part and the second shielding part, the first shielding part is shielded between the first extending section and the plurality of second terminals, the second shielding part is shielded between the first bending section and the plurality of second terminals, the connecting part is positioned on the outermost side of the row of first terminals, and along the arrangement direction of the plurality of first terminals, the projection of the connecting part is at least partially overlapped with the projection of the adjacent first terminal;

15. The electrical connector of claim 14, wherein the connecting portion has a connecting band, the connecting band has a first section and a second section extending from the rear end of the first section in a bent manner, the first section is parallel to the first extending section, the second section is parallel to the first bent section, and along the arrangement direction of the plurality of first terminals, a projection of the first section overlaps a projection of the first extending section, and a projection of the second section overlaps a projection of the first bent section.

16. The electrical connector as claimed in claim 15, wherein the connecting portion has a bridge portion connected to the first section, and a grounding portion integrally connected to the bridge portion, and a portion of the grounding portion protrudes out of the bent portion where the first extending section is connected to the first bending section in a direction of the first bending section.

17. The electrical connector as claimed in claim 16, wherein a fixing member has two bridging portions fixed to the ground portion and corresponding to both sides of the bridge portion, and at least one of the bridging portions protrudes in a direction of the first bent portion from a bent portion where the first extension portion is connected to the first bent portion.

18. The electrical connector of claim 14, wherein the housing has a base portion and a mating portion extending forwardly from the base portion, the base portion has a first receiving slot for receiving the first dielectric block, the base portion has a second receiving slot for receiving the second dielectric block, each of the second terminals has a second mating segment, a second extending segment extending rearwardly from the second mating segment and a second bending segment extending from a rear end of the second extending segment, a mating cavity is defined between a top wall and a bottom wall of the mating portion, the top wall of the mating portion has a plurality of first terminal slots for receiving at least a portion of the first mating segments of the first terminals, the bottom wall of the mating portion has a plurality of second terminal slots for receiving at least a portion of the second mating segments of the second terminals, the first mating segments and the second mating segments are at least partially exposed from the mating cavity, the first containing groove and the second containing groove are located behind the inserting cavity.

19. The electrical connector of claim 14, wherein the first terminals are flush with each other along an arrangement direction of the first terminals, the thickness of the connecting portion is smaller than that of the first terminals, a bottom surface of the connecting portion is substantially flush with a bottom surface of the first terminals, and the jig has a same plane abutting against the connecting portion and the first terminals.