CN215579360U

CN215579360U - Electric connector with electromagnetic shielding function

Info

Publication number: CN215579360U
Application number: CN202120238678.9U
Authority: CN
Inventors: 郑杰明
Original assignee: Jess Link Products Co Ltd
Current assignee: Jess Link Products Co Ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2022-01-18
Anticipated expiration: 2031-01-28

Abstract

The utility model relates to an electric connector with an electromagnetic shielding function, which comprises a circuit board, a plurality of cables and a shielding component. The circuit board comprises a plurality of conductive welding pads and a grounding element. A plurality of cables connect the circuit boards. Each cable comprises a wire core and a shielding layer coated outside the wire core. One end of each wire core extends outwards from the shielding layer to be exposed, and the wire cores of the cable are electrically connected with the conductive welding pads respectively. The shielding component is arranged on the circuit board and is electrically connected with the grounding element. The shielding component forms a plurality of shielding grooves so that the conductive welding pads and the cables are respectively positioned in the shielding grooves. Each shielding groove comprises a contact part and a shielding part. The contact parts of the shielding grooves respectively contact and are connected in series with the shielding layers of the cables, and the shielding parts of the shielding grooves cover the exposed cores of the cables so as to provide electromagnetic shielding for the cores of the cables.

Description

Electric connector with electromagnetic shielding function

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector with electromagnetic shielding function for preventing electromagnetic interference inside and outside the electrical connector.

Background

The conventional connector refers to a connecting element and an accessory for electronic signals, and the electronic devices convert and transmit signals through cables and connectors, i.e., the connector is also a bridge between signals. Connectors are widely used in automotive and computer peripheral applications for data communication applications, industrial, military aviation, transportation, consumer electronics, medical, instrumentation, commercial equipment, etc., and thus, connectors play an important role in a variety of fields. In the generation with advanced information and high efficiency, the transmission speed of signal is continuously increasing. Therefore, high frequency connectors have also been developed to increase the transmission rate of signals.

Generally, the higher the frequency of the signal carried by the connector, the more susceptible it is to internal or external factors, such as: electromagnetic Interference (EMI) or Radio Frequency Interference (RFI). The connector is subject to electromagnetic interference or radio frequency interference, which may cause signal incompleteness, further affecting transmission quality. In addition, with the development of the electronic industry, electronic products are becoming smaller, and therefore, the distance between cables inside the connector is getting closer. Since the pitch of the cables is reduced to be unfavorable for the transmission of high frequency signals, Crosstalk (Crosstalk) between the high frequency differential cables is easily caused. Due to the above mentioned interference, the signal transmission characteristics of the connector are affected.

In order to prevent electromagnetic interference inside and outside the electrical connector, the outer layer of the core of the cable is covered with an insulating layer, and then the insulating layer is covered with a metal mesh to form a shielding layer. The shielding layer mainly has the function of shielding an electromagnetic field generated when the cable is electrified in the insulated wire core so as to reduce electromagnetic interference generated to the outside. However, when the cable is connected to the circuit board of the electrical connector, the shielding layer and the insulating layer of the cable are stripped to expose the core, and then the core is soldered to the circuit board. At this time, there is no protection of the shielding layer between the cores of the cables, which may still cause crosstalk between the cables. Moreover, the stripped shielding layer may be exposed outside the cable, so that the shielding layer may have a great influence on the resistance, insertion loss, etc. of the cable, thereby reducing the transmission quality of the cable.

Therefore, there is a need to develop an electrical connector that can prevent electromagnetic interference inside and outside the electrical connector to solve the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide an electrical connector with an electromagnetic shielding function, which has a simple structure and is convenient to operate and maintain, can overcome the defects of the prior art, can effectively prevent electromagnetic interference inside and outside the electrical connector, is widely applicable, and improves transmission quality and efficiency.

In order to achieve the above object, the present invention discloses an electrical connector with electromagnetic shielding function, comprising:

a circuit board including a plurality of conductive pads and a ground element;

the cables are connected with the circuit board, each cable comprises a wire core and a shielding layer coated outside the wire core, one end of the wire core extends outwards from the shielding layer to be exposed, and the wire cores of the cables are electrically connected to the conductive welding pads respectively; and

and the shielding component is arranged on the circuit board and electrically connected with the grounding element, the shielding component forms a plurality of shielding grooves so that the conductive welding pads and the cables are respectively positioned in the shielding grooves, each shielding groove comprises a contact part and a shielding part extending from the contact part, the contact parts of the shielding grooves are respectively contacted and connected with the shielding layer of the cables in series, and the shielding parts of the shielding grooves respectively cover the core exposed by the cables so as to provide electromagnetic shielding for the cables.

The shielding component comprises a plurality of rib structures which are respectively arranged on the contact parts of the shielding grooves, and the rib structures are respectively contacted with the shielding layers of the cables.

The shape of the contact part of the shielding grooves corresponds to the shape of the shielding layer of the cables.

The cables comprise a first cable and a second cable, the first cable comprises a first core and a second core, the first conductive pad and the second conductive pad are positioned in a first shielding groove of the shielding grooves, and the first core and the second core are respectively connected with the first conductive pad and the second conductive pad.

The shielding component comprises a plurality of protruding structures arranged on the shielding parts of the shielding grooves, and the protruding structures are respectively positioned between two adjacent cables.

The grounding element comprises a plurality of grounding welding pads, the number and the positions of the grounding welding pads correspond to the number and the positions of the protruding structures, and the protruding structures are respectively connected with the grounding welding pads.

The shielding component comprises a first side wall and a second side wall, the first side wall and the second side wall are opposite to each other, the shielding grooves are located between the first side wall and the second side wall, and the length of the first side wall and the length of the second side wall are smaller than the length of the protruding structures.

The grounding element is a grounding layer, and the shielding component is electrically connected with the grounding layer in a riveting or buckling mode.

Wherein, the material of the shielding component is selected from one of metal and conductive plastic.

The shielding component comprises a third side wall which is positioned on the shielding part and connected with the shielding grooves, so that the shielding part completely covers the cores of the cables and the shielding component does not contact the cores.

In summary, the electrical connector with electromagnetic shielding function of the present invention can cover the core of the cable through the shielding member and contact the shielding layer of the cable to provide electromagnetic shielding effect, thereby improving efficiency. In addition, the electric connector of the utility model can separate two adjacent cables through the protruding structure of the shielding component and generate the electromagnetic shielding effect, so as to prevent the crosstalk between the cables in the electric connector and further improve the electromagnetic shielding efficiency. Furthermore, the shielding component of the electric connector can contact with the shielding layer of the cable in various modes so as to be suitable for cables with different wire diameters and further improve the efficiency. In addition, the electric connector can cover the core and the shielding layer of the cable through the shielding component so as to prevent the cable of the electric connector from being subjected to electromagnetic interference of other external electronic elements, and further improve the transmission quality and efficiency.

Drawings

Fig. 1 is a partially exploded view of an electrical connector with electromagnetic shielding in accordance with an embodiment of the present invention.

Fig. 2 shows an exploded view of the circuit board, cable and shield member of fig. 1.

Fig. 3 is a cross-sectional view of the circuit board, cable and shield member of fig. 1 from a perspective.

Fig. 4 is a cross-sectional view of the circuit board, cable and shield member of fig. 1 from another perspective.

Fig. 5A shows a schematic structural view of a shielding member according to an embodiment of the present invention.

Fig. 5B shows a cross-sectional view of the shielding member, the circuit board and the cable of fig. 5A from a perspective.

Fig. 6A shows a schematic structural view of a shielding member according to another embodiment of the present invention.

Fig. 6B shows a cross-sectional view of the shielding member, the circuit board and the cable of fig. 6A from a perspective.

Fig. 7A shows a schematic structural view of a shielding member according to an embodiment of the present invention.

Fig. 7B shows a combination of the shield member, circuit board, and cable of fig. 7A.

Fig. 8A shows a schematic structural view of a shielding member according to an embodiment of the present invention.

Fig. 8B shows a cross-sectional view of the shielding member, the circuit board and the cable of fig. 8A from another perspective.

Detailed Description

In order that the advantages, spirit and features of the utility model will be readily understood and appreciated, embodiments thereof will be described in detail hereinafter with reference to the accompanying drawings. It is to be understood that these embodiments are merely representative of the present invention, and that the specific methods, devices, conditions, materials, etc., described herein are not intended to limit the present invention or the corresponding embodiments. Also, the devices shown in the drawings are merely for relative positional representation and are not drawn to scale as they are actually drawn.

Reference throughout this specification to the description of "a particular embodiment," "another particular embodiment," or "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.

In the description of the present invention, it is to be understood that the terms "longitudinal, transverse, upper, lower, front, rear, left, right, top, bottom, inner, outer" and the like refer to orientations or positional relationships based on those shown in the drawings, which are merely for convenience of description and simplicity of description, and do not indicate that the described devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Please refer to fig. 1 and fig. 2. Fig. 1 shows a partially exploded schematic view of an electrical connector 1 with electromagnetic shielding according to an embodiment of the present invention. Fig. 2 shows an exploded view of the circuit board 11, the cable 12 and the shielding member 13 of fig. 1. As shown in fig. 1 and 2, in the present embodiment, the electrical connector 1 with electromagnetic shielding function includes a housing 10, a circuit board 11, a plurality of cables 12, and a shielding member 13. A circuit board 11, a plurality of cables 12, and a shield member 13 are disposed in the housing 10. The circuit board 11 includes a plurality of conductive pads 111 and a plurality of ground pads 112. A plurality of cables 12 are connected to the circuit board 11. Each cable 12 includes a core 121 and a shielding layer 123 covering the core 121. One end of the wire core 121 extends outwards from the shielding layer 123 to be exposed, and the wire cores 121 of the plurality of cables 12 are electrically connected to the conductive pads 111 respectively. The shielding member 13 is disposed on the circuit board 11 and electrically connected to the ground pad 112. The shielding member 13 forms a plurality of shielding recesses 131 so that the conductive pads 111 and the cables 12 are respectively located therein. The shield groove 131 includes a contact part 1311 and a shield part 1312 extending from the contact part 1311. The contact portions 1311 of the shielding recesses 131 respectively contact and are connected in series with the shielding layers 123 of the cables 12 and the shielding portions 1312 of the shielding recesses 131 respectively cover the exposed wire cores 121 of the cables 12 to provide electromagnetic shielding for the cables 12.

In practice, the housing 10 of the electrical connector 1 with electromagnetic shielding function has an opening 101 and an accommodating space communicating with the opening 101. The circuit board 11, the cable 12 and the shielding member 13 may be disposed in the accommodating space from the opening 101 to be mounted in the housing 10. After the electrical connector 1 is assembled, one end of the circuit board 11 is exposed outside the housing 10 to connect the female end of the electrical connector 1, and the other end of the circuit board 11 includes a plurality of conductive pads 111 and a plurality of ground pads 112 for electrically connecting the cable 12 and the shielding member 13, respectively. The conductive pads 111 and the ground pads 112 may be arranged linearly, and the conductive pads 111 and the ground pads 112 may be arranged alternately. Note that the arrangement of the conductive pads 111 and the ground pads 112 is not limited to the arrangement shown in fig. 2, and the sizes of the conductive pads 111 and the ground pads 112 may be designed according to the requirement.

As shown in fig. 2, in the present embodiment, the cable 12 includes a wire core 121, an insulating layer 122 and a shielding layer 123. The insulation layer 122 covers the wire core 121, and the shielding layer 123 covers the insulation layer 122. Further, one end of the insulating layer 122 extends outwards from the shielding layer 123 to be exposed, and one end of the wire core 121 extends outwards from the insulating layer 122 to be exposed. When the electrical connector 1 is assembled, the core 121 of the cable 12 is electrically connected to the conductive pad 111 of the circuit board 11. In practice, the wire core 121 may be fixed and electrically connected to the conductive pad 111 of the circuit board 11 by soldering for transmission. The shielding layer 123 may be a sheet or mesh aluminum foil layer to shield the electromagnetic field generated by the current passing through the wire core 121. The material of the shield layer 123 is not limited to aluminum foil, and may be other conductive materials. The insulating layer 122 located between the wire core 121 and the shielding layer 123 can not only ensure the transmission function of the wire core 121, but also isolate the wire core 121 and the shielding layer 123. The cable 12 may further include an outer sheath (not shown) to cover the shielding layer 123, and a portion of the shielding layer 123 is exposed from the outer sheath. In the embodiment, the shielding layer 123 of the cable 12 is disposed in the housing 10 of the electrical connector 1, and the outer sheath of the cable 12 is disposed outside the housing 10 of the electrical connector 1, but the embodiment is not limited thereto, and the length of the shielding layer of the cable and the disposition position of the outer sheath may be determined according to design or requirement.

The shielding member 13 is substantially U-shaped and has a top 132, a first sidewall 133A, and a second sidewall 133B. Further, the shielding member 13 includes a plurality of protruding structures 134 extending from the top 132 and located between the first sidewall 133A and the second sidewall 133B. The shielding grooves 131 are formed between the top 132, the first sidewall 133A and the protruding structure 134, between the top 132, the second sidewall 133B and the protruding structure 134, and between the top 132 and the protruding structure 134. Further, each shield groove 131 includes a contact portion 1311 and a shield portion 1312. As shown in fig. 2, the contact part 1311 is located at one end of the shielding recess 131, and the shielding part 1312 is located at the other end of the shielding recess 131 with respect to the contact part 1311. In the present embodiment, the shielding member 13 includes 4 shielding recesses 131, and includes 3 protruding structures 134 respectively located between 2 shielding recesses 131. In practice, the number of the shielding recesses 131 and the protruding structures 134 of the shielding member 13 is not limited thereto, and the number of the shielding recesses 131 and the protruding structures 134 may also be determined according to requirements or designs.

In the embodiment, the number and the position of the ground pads 112 of the circuit board 11 correspond to the number and the position of the protruding structures 134 of the shielding member 13, and the protruding structures 134 of the shielding member 13 are respectively connected to the ground pads 112 of the circuit board 11. As shown in fig. 2, the circuit board 11 of the electrical connector 1 includes 5 ground pads 112, and the first sidewall 133A, the second sidewall 133B and the protruding structure 134 of the shielding member 13 are electrically connected to the ground pads 112 respectively, so as to ground the shielding member 13. In practice, the material of the shielding member 13 may be selected from metal, conductive plastic or other conductive materials. The first sidewall 133A, the second sidewall 133B and the protruding structure 134 of the shielding member 13 can be fixed on the circuit board 11 by soldering, riveting, snapping, etc. and electrically connected to the ground pad 112, so as to ground the shielding member 13. Since the first sidewall 133A, the second sidewall 133B and the protruding structure 134 of the shielding member 13 are all grounded, and the top 132 of the shielding member 13 is connected to the first sidewall 133A, the second sidewall 133B and the protruding structure 134, the shielding recess 131 of the shielding member 13 has an electromagnetic shielding function.

Please refer to fig. 1 to fig. 4. Fig. 3 shows a cross-sectional view of the circuit board 11, the cable 12 and the shielding member 13 of fig. 1 from a perspective. Fig. 4 shows a cross-sectional view of the circuit board 11, the cable 12 and the shielding member 13 of fig. 1 from another perspective. As shown in fig. 2, 3 and 4, in the present embodiment, the electrical connector 1 includes 4 cables 12, and each cable 12 includes a first core 121A and a second core 121B. The number of the shielding recesses 131 of the shielding member 13 corresponds to the number of the cables 12, and the first and

second sidewalls

133A and 133B and the protruding structure 134 of the shielding member 13 are electrically connected with the ground pad 112. Each two ground pads 112 of the circuit board 11 includes a first conductive pad 111A and a second conductive pad 111B therebetween.

After the electrical connector 1 is assembled, the first core 121A and the second core 121B of the cable 12 are respectively fixed to the first conductive pad 111A and the second conductive pad 111B of the circuit board 11. The shielding member 13 is located above the cable 12 and the first sidewall 133A, the second sidewall 133B and the protruding structure 134 of the shielding member 13 are fixed to the ground pad 112 of the circuit board 11. At this time, the position of the shielding recess 131 of the shielding member 13 corresponds to the position of the cable 12, and the first conductive pad 111A and the second conductive pad 111B of the circuit board 11 and the first core 121A and the second core 121B of the cable 12 are located in the same shielding recess 131. Further, the wall 1313 of the contact portion 1311 of the shielding groove 131 contacts the shielding layer 123 of the cable 12, and the shielding portion 1312 of the shielding groove 131 covers the first and

second cores

121A and 121B of the cable 12 and the first and second

conductive pads

111A and 111B of the circuit board 11 to provide electromagnetic shielding for the first and

second cores

121A and 121B of the cable 12.

In practice, the shielding member 13 is connected to the ground pad 112 of the circuit board 11, and the contact portion 1311 of the shielding groove 131 of the shielding member 13 contacts the shielding layer 123 of the cable 12, that is, the shielding layer 123 of the cable 12 can be electrically connected to the ground pad 112 through the shielding member 13. And the shape of the contact part 1311 of the shielding recess 131 may correspond to the shape of the shielding layer 123 of the cable 12, so that when all the shielding recesses 131 contact the shielding layers 123 of the cable 12, respectively, the shielding recesses 131 may connect the shielding layers 123 of all the cables 12 in series and ground through the contact part 1311. Therefore, the electric connector can enhance the electromagnetic shielding effect of the cable through the shielding component, thereby improving the efficiency.

Further, when the electrical connector 1 is assembled, the cables 12 are respectively located in the shielding recesses 131. In other words, each two adjacent cables 12 include a protrusion 134 therebetween. In practice, when the cable 12 is a high frequency differential signal cable, the protruding structure 134 of the shielding member 13 can shield two cables 12 located in two adjacent shielding grooves 131, so as to prevent crosstalk (Corsstalk) between the cables inside the electrical connector and replace a ground wire in the cable, thereby improving efficiency and saving cost. In addition, after the electrical connector 1 is assembled, the shielding member 13 contacts the shielding layer 123 of the cable 12 and covers the core 121 of the cable 12, so that the electrical connector of the present invention can also effectively block electromagnetic interference of other electrical components outside the electrical connector, thereby improving transmission quality and efficiency.

The connection between the first sidewall and the second sidewall of the shielding member and the ground pad of the circuit board may be other than the above embodiments. In one embodiment, the lengths of the first sidewall and the second sidewall of the shielding member are smaller than the length of the protruding structure, and the protruding structure of the shielding member is connected to the ground pad of the circuit board. In practice, when the protruding structure of the shielding member is connected to the ground pad of the circuit board, the shielding member has an electromagnetic shielding function. That is, the first sidewall and the second sidewall, which are not connected to the ground pads of the circuit board, still have the electromagnetic shielding function. In another embodiment, the lengths of the first and second sidewalls of the shielding member are greater than the length of the protrusion 234, and the first and second sidewalls are connected to the ground pads of the circuit board. In practice, when the first sidewall and the second sidewall of the shielding member are connected to the ground pads of the circuit board, the shielding member has an electromagnetic shielding function. Furthermore, the protruding structure which is not connected with the grounding welding pad of the circuit board still has the function of electromagnetic shielding. Therefore, the protruding structure of the shielding member can prevent crosstalk between the cables.

In addition, in an embodiment, the top of the shielding member further includes a plurality of grooves disposed opposite to the plurality of shielding grooves, and the cable may straddle in the groove of the shielding member. In practice, when the electrical connector includes two layers of cables, the cable at the lower layer can be attached to the circuit board, and the shielding groove of the shielding member can be disposed on the cable at the lower layer; after the core of the cable on the upper layer is soldered on the circuit board, the shielding layer of the cable can further straddle and contact the groove of the shielding member. Therefore, the shielding member can prevent crosstalk between cables of the same layer through the shielding groove, prevent interference between cables of different layers through the groove, arrange the cables in order and be less prone to winding, and save space. And the number of grooves may correspond to the number of upper cables.

The grounding element of the circuit board may be other than the grounding pad described in the foregoing embodiments, or may be in other forms. In one embodiment, the ground element is a ground layer, and the shielding member is electrically connected to the ground layer. In practice, the circuit board may be a multi-layer printed circuit board, and the ground layer may be disposed in the circuit board. The laminate except the grounding layer of the circuit board can be etched to form a plurality of holes, and the positions of the holes can correspond to the positions of the side walls of the shielding member. When the shielding member is disposed on the circuit board, the sidewall of the shielding member can penetrate through the hole and is connected to the ground layer of the circuit board by riveting or fastening, so that the shielding member is grounded and has shielding function. Likewise, the position of the hole of the circuit board may further correspond to the position of the protruding structure of the shielding member. The protruding structure of the shielding member can penetrate through the hole and be connected to the ground layer of the circuit board by riveting or fastening.

The structure of the shielding member may be other than the above-described embodiments. Please refer to fig. 5A and 5B. Fig. 5A shows a schematic structure of the shielding member 23 according to an embodiment of the present invention. Fig. 5B shows a cross-sectional view of the shielding member 23, the circuit board 21 and the cable 22 of fig. 5A from a perspective. As shown in fig. 5A, the present embodiment is different from the previous embodiments in that the shielding member 23 of the present embodiment further includes a plurality of rib structures 235. The rib structures 235 are respectively disposed at the contact portions 2311 of the shielding grooves 231 and located in the shielding grooves 231. In practice, the rib structure 235 may have a square, rectangular, or circular arc shape, and the rib structure 235 may be integrally formed on the shielding member 23 or disposed on the shielding member 23 by stamping. When the electrical connector is assembled, the rib structure 235 of the shielding groove 231 contacts the shielding layer 223 of the cable 22 to provide electromagnetic shielding for the cable 22. In this embodiment, the rib structure 235 is located on the top of the shielding member 23, but is not limited thereto, and the rib structure 235 may be located on the side wall or the protruding structure of the contact portion 2311. Since the electrical connector may include cables with different wire diameters according to design or requirements, the shielding member of the electrical connector of the present invention may contact the shielding layer of the cable with a smaller wire diameter through the rib structure, so as to improve shielding efficiency.

Please refer to fig. 6A and fig. 6B. Fig. 6A shows a schematic structural view of a shielding member 33 according to another embodiment of the present invention. Fig. 6B shows a cross-sectional view of the shielding member 33, the circuit board 31 and the cable 32 of fig. 6A from a perspective. As shown in fig. 6A, the present embodiment is different from the previous embodiments in that the shielding member 33 of the present embodiment further includes a plurality of elastic structures 335. The elastic structures 335 are respectively disposed on the contact portions 3311 of the shield recesses 331 and extend from the wall surfaces 3311 to the shield recesses 331. In practice, the elastic structure 335 may be an elastic arm, and the elastic arm may be formed on the shielding member 33 by stamping. Since the electrical connector may include cables with different wire diameters according to design or requirement, when the electrical connector is assembled, the elastic structure 335 located in the shielding recess 331 may contact the shielding layer 323 of the cable 32 with a smaller wire diameter to provide electromagnetic shielding for the cable 32. The cable 32 with a larger wire diameter can press the elastic structure 335 of the shielding recess 331 first, and then the elastic structure 335 abuts against and contacts the shielding layer 323 of the cable 32 according to the elastic force generated by the pressing, so as to provide electromagnetic shielding for the cable 32. Therefore, the shielding component of the electric connector of the utility model can also contact the shielding layer of the cable with smaller wire diameter through the elastic structure, so as to improve the shielding efficiency.

Please refer to fig. 7A and fig. 7B. Fig. 7A shows a schematic view of a shielding member structure 43 according to an embodiment of the utility model. Fig. 7B shows a combination of the shield member 43, the circuit board 41, and the cable 42 of fig. 7A. As shown in fig. 7A and 7B, in the present embodiment, the shielding portion 4312 of the shielding member 43 further includes a plurality of partition structures 436 respectively disposed in the shielding grooves 431, and the partition structures 436 are disposed at the end of the shielding member 43 close to the core 421 of the cable 42. The shape of the separation structure 436 may correspond to the shape of the cores 421 of the respective sets of cables 42. When the shielding member 43 is disposed on the circuit board 41, the shielding portion 4312 of the shielding member 43 can cover and separate the cores 421 of the cable 42 by the separating structure 436, so as to provide an electromagnetic shielding function between the cores 421 of the cable 42, thereby improving the shielding efficiency.

Please refer to fig. 8A and fig. 8B. Fig. 8A shows a schematic diagram of a shielding member structure 53 according to an embodiment of the present invention. Fig. 8B shows a cross-sectional view of the shielding member 53, the circuit board 51 and the cable 52 of fig. 8A from another perspective. As shown in fig. 8A and 8B, the present embodiment is different from the previous embodiments in that the shielding member 53 of the present embodiment further includes a third sidewall 533C located at the shielding portion 5312 and connected to the shielding groove 531. In practice, the third sidewall 533C may be disposed at an end of the shielding member 53 and cover an opening of one end of the shielding groove 531. Further, the third sidewall 533C may be disposed at an end of the shielding member 53 near the core 521 of the cable 52. And the third sidewall 533C may connect the first sidewall 533A and the second sidewall 533B of the shielding member 53, and may also connect the protrusion structure 534. Therefore, when the shielding member 53 is disposed on the circuit board 51, the shielding portion 5312 of the shielding member 53 may completely cover the core 521 of the cable 52, and the shielding member 53 does not contact the core 521, so as to provide a more complete electromagnetic shielding for the cable 52, thereby improving shielding efficiency.

The above detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and is not intended to limit the scope of the present invention by the preferred embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the claims. The scope of the claims is thus to be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the scope of the appended claims.

Claims

1. An electrical connector with electromagnetic shielding function, comprising:

a circuit board including a plurality of conductive pads and a ground element;

2. The electrical connector of claim 1, wherein the shielding member comprises a plurality of rib structures respectively disposed at the contact portions of the shielding grooves, and the rib structures respectively contact the shielding layers of the cables.

3. The electrical connector with electromagnetic shielding function as claimed in claim 1, wherein the shape of the contact portion of the shielding grooves corresponds to the shape of the shielding layer of the cables.

4. The electrical connector of claim 1, wherein the conductive pads comprise a first conductive pad and a second conductive pad, the cables comprise a first cable, the first cable comprises a first core and a second core, the first conductive pad and the second conductive pad are disposed in a first shielding recess of the shielding recesses, and the first core and the second core are respectively connected to the first conductive pad and the second conductive pad.

5. The electrical connector with electromagnetic shielding function of claim 1, wherein the shielding member comprises a plurality of protruding structures disposed on the shielding portions of the shielding grooves, and the protruding structures are respectively located between two adjacent cables.

6. The electrical connector of claim 5, wherein the grounding element comprises a plurality of grounding pads, the number and the position of the grounding pads correspond to the number and the position of the protruding structures, and the protruding structures are respectively connected to the grounding pads.

7. The electrical connector of claim 6, wherein the shielding member comprises a first sidewall and a second sidewall opposite to each other and the shielding recesses are located between the first sidewall and the second sidewall, and the length of the first sidewall and the second sidewall is smaller than the length of the protruding structures.

8. The electrical connector of claim 1, wherein the grounding element is a grounding layer, and the shielding member is electrically connected to the grounding layer by riveting or snapping.

9. The electrical connector with electromagnetic shielding function of claim 1, wherein the material of the shielding member is selected from one of metal and conductive plastic.

10. The electrical connector of claim 1, wherein the shielding member comprises a third sidewall at the shielding portion and connecting the shielding grooves such that the shielding portion completely covers the cores of the cables and the shielding member does not contact the cores.