CN110556673A - USB Type-C cable male end structure - Google Patents

Abstract

The invention relates to a USB Type-C cable male end structure. The male end structure of the cable comprises an adapter plate and a cable. One surface of the adapter plate is provided with a plurality of high-frequency differential signal contacts and a plurality of grounding contacts, and the other surface of the adapter plate is provided with a plurality of low-frequency differential signal contacts and a plurality of power supply contacts. The cable comprises a plurality of high-frequency differential signal transmission lines, a plurality of power transmission lines, a plurality of low-frequency differential signal transmission lines, an outer metal shielding layer and an outer insulating layer, wherein one ends of the plurality of high-frequency and low-frequency differential signal transmission lines and the plurality of power transmission lines are respectively and electrically connected to the plurality of high-frequency and low-frequency differential signal contacts and the plurality of power contacts, and the surfaces of the plurality of high-frequency differential signal transmission lines are respectively coated with a metal shielding piece and respectively contact the plurality of grounding contacts to form grounding. Therefore, the attenuation of high-speed transmission can be reduced, and the problem of interference is effectively reduced.

Description

USB Type-C cable male end structure

technical field

The invention relates to a cable male end structure, in particular to a USB Type-C cable male end structure.

Background technique

Among the common connectors on the market, the Universal Serial Bus (USB) connector is the most common. The early USB connectors belonged to the 2.0 specification, and later evolved into the faster 3.0 specification, and now it is more advanced to provide a USB Type-C connector that can be plugged in front and back, and the speed is faster than the 3.0 specification. However, most of the existing male end structures of USB Type-C cables have the problems of easy attenuation and interference in high-speed transmission.

Contents of the invention

The technical problem to be solved by the present invention is to provide a USB Type-C cable male end structure, which can reduce the attenuation of high-speed transmission and effectively reduce the problem of interference.

In order to solve the above-mentioned technical problems, the present invention provides a USB Type-C cable male end structure, comprising: an adapter board, one side of which is provided with multiple high-frequency differential signal contacts and multiple ground contacts, the The other side of the adapter board is provided with multiple low-frequency differential signal contacts and multiple power contacts; and a cable, which includes multiple high-frequency differential signal transmission lines, multiple power supply transmission lines, multiple low-frequency differential signal transmission lines, an external A metal shielding layer and an outer insulating layer, a plurality of high-frequency differential signal transmission lines, a plurality of power supply transmission lines and a plurality of low-frequency differential signal transmission lines are arranged in the outer metal shielding layer, and a plurality of grounding contacts are electrically connected to the outer metal shielding layer , the outer insulating layer is coated on the outer metal shielding layer, one ends of the plurality of high-frequency differential signal transmission lines are respectively electrically connected to a plurality of high-frequency differential signal contacts, and one ends of the plurality of low-frequency differential signal transmission lines are respectively electrically connected to A plurality of low-frequency differential signal contacts, one end of a plurality of power transmission lines are respectively electrically connected to a plurality of power contacts, the surfaces of the plurality of high-frequency differential signal transmission lines are each covered with a metal shield, and the plurality of metal shields are respectively in contact with a plurality of grounds Contacts to ground the plurality of metal shields to the outer metal shield.

Preferably, the plurality of high-frequency differential signal contacts are arranged in pairs, the plurality of high-frequency differential signal contacts are arranged in a row, the plurality of low-frequency differential signal contacts are arranged in pairs, and the plurality of power contacts are located at the plurality of low-frequency differential signal contacts On both sides of the , a plurality of low-frequency differential signal contacts and a plurality of power contacts are arranged in a row.

Preferably, the adapter board includes a surface layer of a substrate, and a plurality of transmission lines are arranged on the surface layer of the substrate for electrically connecting a plurality of high-frequency differential signal contacts, a plurality of low-frequency differential signal contacts, and a plurality of power supply contacts respectively. A transmission line extends to one end of the surface layer of the substrate, and a plurality of grounding lines are arranged on the surface layer of the substrate for electrically connecting multiple grounding contacts respectively.

Preferably, the adapter board further includes a ground layer, the ground layer is arranged at intervals on one side of the surface layer of the substrate, the ground layer is electrically connected to a plurality of ground lines, and the ground layer is provided with a plurality of first openings , the plurality of first openings correspond to the plurality of transmission lines electrically connected to the plurality of high-frequency differential signal contacts.

Preferably, the adapter board further includes a power layer, the power layer is arranged on one side of the ground layer at intervals, the power layer is electrically connected to the transmission line electrically connected to a plurality of power contacts, and the power layer is set There are a plurality of second openings corresponding to a plurality of transmission lines electrically connected to a plurality of high-frequency differential signal contacts.

Preferably, the adapter board further includes a common ground layer, the common ground layer is arranged at intervals on one side of the power supply layer, the common ground layer is electrically connected to a plurality of ground lines, and the common ground layer is electrically connected to the cable outer metal shield.

In order to solve the above-mentioned technical problems, the present invention also provides a USB Type-C cable male end structure, including: an adapter plate, a plurality of high-frequency differential signal contacts and a plurality of ground contacts are arranged on one side of the adapter plate, the The other side of the adapter board is provided with multiple low-frequency differential signal contacts and multiple power contacts; and a cable, which includes multiple high-frequency differential signal transmission lines, multiple power supply transmission lines, multiple low-frequency differential signal transmission lines, an external A metal shielding layer and an outer insulating layer, a plurality of high-frequency differential signal transmission lines, a plurality of power supply transmission lines and a plurality of low-frequency differential signal transmission lines are arranged in the outer metal shielding layer, and a plurality of power supply transmission lines and a plurality of low-frequency differential signal transmission lines are close to the At the center of the outer metal shielding layer, a plurality of high-frequency differential signal transmission lines are arranged on the periphery of a plurality of power supply transmission lines and a plurality of low-frequency differential signal transmission lines, and a plurality of grounding contacts are electrically connected to the outer metal shielding layer. Overlaid on the outer metal shielding layer, one end of multiple high-frequency differential signal transmission lines is electrically connected to multiple high-frequency differential signal contacts, and one end of multiple low-frequency differential signal transmission lines is electrically connected to multiple low-frequency differential signal contacts. , one end of a plurality of power transmission lines is electrically connected to a plurality of power contacts respectively, the surfaces of the plurality of high-frequency differential signal transmission lines are each covered with a metal shield, and the plurality of metal shields are respectively in contact with a plurality of grounding contacts, so that the plurality of metal A shield forms a ground with the outer metal shield.

Preferably, each of the plurality of high-frequency differential signal transmission lines includes a cable conductor, a first insulating layer, an inner metal shielding layer and a second insulating layer, the first insulating layer covers the cable conductor, and the The inner metal shielding layer is wrapped on the first insulating layer, the second insulating layer is wrapped on the inner metal shielding layer, and one end of the cable conductors of the multiple high-frequency differential signal transmission lines is electrically connected to the multiple high-frequency differential signal transmission lines respectively. The inner metal shielding layer of the multiple high frequency differential signal transmission lines and the outer metal shielding layer are grounded.

Preferably, the plurality of ground contacts are electrically connected to the outer metal shielding layer through at least one conductive element.

In order to solve the above-mentioned technical problems, the present invention also provides a USB Type-C cable male end structure, including: an adapter plate, a plurality of high-frequency differential signal contacts and a plurality of ground contacts are arranged on one side of the adapter plate, the The other side of the adapter board is provided with multiple low-frequency differential signal contacts and multiple power contacts; multiple high-frequency differential signal contacts are arranged in pairs, multiple high-frequency differential signal contacts are arranged in a row, and multiple low-frequency differential signal contacts are arranged in pairs. Set in two pairs, multiple power contacts are located on both sides of multiple low-frequency differential signal contacts, multiple low-frequency differential signal contacts and multiple power contacts are arranged in a row; a cable, the cable contains multiple high-frequency differential signal transmission lines , a plurality of power transmission lines, a plurality of low-frequency differential signal transmission lines, an outer metal shielding layer and an outer insulating layer, a plurality of high-frequency differential signal transmission lines, a plurality of power supply transmission lines and a plurality of low-frequency differential signal transmission lines are arranged on the outer metal shielding layer Inside, a plurality of grounding contacts are electrically connected to the outer metal shielding layer, the outer insulating layer is coated on the outer metal shielding layer, and one end of the plurality of high-frequency differential signal transmission lines is electrically connected to a plurality of high-frequency differential signal transmission lines respectively. Contacts, one end of a plurality of low-frequency differential signal transmission lines is electrically connected to a plurality of low-frequency differential signal contacts, one end of a plurality of power transmission lines is electrically connected to a plurality of power contacts, and the surfaces of a plurality of high-frequency differential signal transmission lines are respectively coated A metal shield, a plurality of metal shields are in contact with a plurality of grounding contacts, so that the plurality of metal shields and the outer metal shield form a ground; and a male connector, the male connector is electrically connected to the transfer Take board.

Preferably, the male connector includes an insulating body and a plurality of transmission conductors, the plurality of transmission conductors are arranged on the insulation body, one end of the plurality of transmission conductors is electrically connected to the adapter board, and the plurality of transmission conductors are connected to the adapter board. A plurality of high-frequency differential signal contacts, a plurality of power supply contacts and a plurality of low-frequency differential signal contacts form an electrical connection.

Preferably, the outside of the adapter plate is coated with an insulating inner mold, and the insulating inner mold extends to the connection between the adapter plate and the cable, and the insulating inner mold extends to the adapter plate and the male connection connector of the device.

Preferably, the insulating inner mold and the male connector are covered with a metal shell, and the metal shell is integrally formed.

Preferably, the metal shell is covered with an insulating shell, the male connector and the metal shell covering the male connector protrude from the insulating shell, and a guide inclined surface is provided around the front end of the insulating shell .

In order to solve the above-mentioned technical problems, the present invention also provides a USB Type-C cable male end structure, including: an adapter plate, a plurality of high-frequency differential signal contacts and a plurality of ground contacts are arranged on one side of the adapter plate, the The other side of the adapter board is provided with multiple low-frequency differential signal contacts and multiple power contacts; multiple high-frequency differential signal contacts are arranged in pairs, multiple high-frequency differential signal contacts are arranged in a row, and multiple low-frequency differential signal contacts are arranged in pairs. Set in two pairs, multiple power contacts are located on both sides of multiple low-frequency differential signal contacts, multiple low-frequency differential signal contacts and multiple power contacts are arranged in a row; a cable, the cable contains multiple high-frequency differential signal transmission lines , a plurality of power transmission lines, a plurality of low-frequency differential signal transmission lines, an outer metal shielding layer and an outer insulating layer, a plurality of high-frequency differential signal transmission lines, a plurality of power supply transmission lines and a plurality of low-frequency differential signal transmission lines are arranged on the outer metal shielding layer Inside, a plurality of grounding contacts are electrically connected to the outer metal shielding layer, the outer insulating layer is coated on the outer metal shielding layer, and one end of the plurality of high-frequency differential signal transmission lines is electrically connected to a plurality of high-frequency differential signal transmission lines respectively. Contacts, one end of a plurality of low-frequency differential signal transmission lines is electrically connected to a plurality of low-frequency differential signal contacts, one end of a plurality of power transmission lines is electrically connected to a plurality of power contacts, and the surfaces of a plurality of high-frequency differential signal transmission lines are respectively coated A metal shield and an external metal shield, a plurality of metal shields respectively contacting a plurality of grounding contacts, so that the plurality of metal shields and the outer metal shield form a ground; and a first circuit board, the first circuit board One side of the first circuit board is provided with a plurality of on-board high-frequency differential signal contacts and a plurality of on-board grounding contacts, and the other side of the first circuit board is provided with a plurality of on-board low-frequency differential signal contacts and a plurality of on-board power contacts; a plurality of high-frequency differential The other ends of the signal transmission lines are electrically connected to the high-frequency differential signal contacts on multiple boards, the other ends of the multiple low-frequency differential signal transmission lines are electrically connected to the low-frequency differential signal contacts on the multiple boards, and the other ends of the multiple power transmission lines They are respectively electrically connected to a plurality of on-board power contacts, and a plurality of external metal shields are respectively in contact with a plurality of on-board grounding contacts.

Preferably, the first circuit board includes a surface layer of the circuit board, and the surface layer of the circuit board is provided with a plurality of on-board transmission lines for electrically connecting the high-frequency differential signal contacts on the multiple boards and the low-frequency differential signals on the multiple boards respectively. Signal contacts and multiple on-board power contacts, multiple on-board transmission lines extend to one end of the surface of the circuit board, and multiple on-board grounding lines are also provided on the surface of the circuit board to electrically connect multiple on-boards ground contact.

Preferably, the first circuit board also includes a board ground layer, the board ground layer is arranged on one side of the surface layer of the circuit board at intervals, the board ground layer is electrically connected to a plurality of board ground lines, and the board ground layer A plurality of third openings are provided, and the plurality of third openings correspond to a plurality of on-board transmission lines electrically connected to the high-frequency differential signal contacts on the plurality of boards.

Preferably, the first circuit board also includes a board power layer, the board power layer is arranged on one side of the board ground layer at intervals, and the board power layer is electrically connected to the on-board transmission layer electrically connected to a plurality of on-board power contacts. The lines are electrically connected, and the power supply layer of the board is provided with a plurality of fourth openings, and the plurality of fourth openings correspond to the transmission lines on the boards electrically connected to the high-frequency differential signal contacts on the boards.

Preferably, the first circuit board also includes a board common ground layer, the board common ground layer is arranged on one side of the board power supply layer at intervals, the board common ground layer is electrically connected to multiple on-board ground lines, and the board common ground layer The ground plane is electrically connected to the outer metal shielding layer of the cable.

Preferably, it also includes a second circuit board, a first connector is arranged on the first circuit board, the first connector is electrically connected to the first circuit board, and a second connection is arranged on the second circuit board The second connector is electrically connected to the second circuit board, and the first connector and the second connector are inserted into each other to form an electrical connection.

Beneficial effects of the present invention:

The cable male end structure of the present invention includes an adapter board and a cable, one side of the adapter board is provided with a plurality of high-frequency differential signal contacts and a plurality of ground contacts, and the other side of the adapter board is provided with a plurality of low-frequency differential signal contacts and Multiple power contacts. The cable includes multiple high-frequency differential signal transmission lines, multiple power transmission lines, multiple low-frequency differential signal transmission lines, an outer metal shielding layer and an outer insulation layer, multiple high-frequency differential signal transmission lines, multiple power transmission lines and multiple low-frequency Differential signal transmission lines are set inside the outer metal shielding layer, multiple grounding contacts are electrically connected to the outer metal shielding layer, and the outer insulating layer is covered outside the outer metal shielding layer, multiple high-frequency differential signal transmission lines, multiple low-frequency differential signal transmission lines and one end of a plurality of power transmission lines are respectively electrically connected to a plurality of high-frequency differential signal contacts, a plurality of low-frequency differential signal contacts, and a plurality of power contacts. Each of the metal shields is in contact with multiple grounding contacts, so that the multiple metal shields and the outer metal shield are grounded. Thus, a modular design can be formed, and the transmission speed can be increased, attenuation can be reduced, and interference can also be reduced through the ground loop, effectively reducing the problems of EMI and RFI.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. However, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

Description of drawings

Fig. 1 is the three-dimensional view of the cable male end structure of the present invention;

Fig. 2 is a perspective view of removing the insulating shell from the cable male end structure of the present invention;

3 is a perspective view of the adapter plate, male connector and cables of the present invention;

Fig. 4 is a perspective view of another angle of the adapter board, male connector and cables of the present invention;

Fig. 5 is the sectional view of cable of the present invention;

Fig. 6 is a three-dimensional exploded view of the adapter plate of the present invention;

7 is a three-dimensional exploded view of the cable and the first and second circuit boards of the present invention;

Fig. 8 is a three-dimensional exploded view of another angle of the cable and the first and second circuit boards of the present invention;

9 is a perspective view of the cable of the present invention and the first and second circuit boards;

FIG. 10 is an exploded perspective view of the first circuit board of the present invention.

Detailed ways

Please refer to FIG. 1 to FIG. 5 , the present invention provides a USB Type-C cable male end structure, including an adapter board 1 and a cable 2 .

A plurality of high-frequency differential signal contacts 11 and a plurality of ground contacts 13 are arranged on one side of the adapter board 1 , and a plurality of low-frequency differential signal contacts 14 and a plurality of power contacts 15 are arranged on the other side of the adapter board 1 . Preferably, a plurality of high-frequency differential signal contacts 11 are arranged in pairs, and a plurality of high-frequency differential signal contacts 11 are arranged in a row, and a plurality of low-frequency differential signal contacts 14 are arranged in pairs. The differential signal contact 14 is located in the middle of the adapter board 1 . A plurality of power contacts 15 are located on two sides of the plurality of low-frequency differential signal contacts 14 , and the plurality of low-frequency differential signal contacts 14 and the plurality of power contacts 15 are arranged in a row.

In this embodiment, the adapter board 1 is a multi-layer board structure (as shown in FIG. 6 ), the adapter board 1 may include a substrate surface layer 111, and the substrate surface layer 111 is provided with a plurality of transmission lines 1111, It is used to electrically connect a plurality of high-frequency differential signal contacts 11, a plurality of low-frequency differential signal contacts 14, and a plurality of power supply contacts 15 respectively, and a plurality of transmission lines 1111 extend to one end of the surface layer 111 of the substrate. There are multiple ground lines 1112 for electrically connecting multiple ground contacts 13 respectively.

The adapter board 1 can also include a ground layer 112, the ground layer 112 includes conductive material, the ground layer 112 is arranged on one side of the substrate surface layer 111 at intervals, and an insulating material can be provided between the substrate surface layer 111 and the ground layer 112 be quarantined. The ground layer 112 is electrically connected to a plurality of ground lines 1112, and the ground layer 112 is provided with a plurality of first openings 1121, and the plurality of first openings 1121 are electrically connected to a plurality of high-frequency differential signal contacts 11. Corresponding to a transmission line 1111, it can be used to prevent crosstalk interference.

The adapter board 1 can also include a power layer 113, the power layer 113 includes conductive material, the power layer 113 is arranged on one side of the ground layer 112 at intervals, an insulating material can be provided between the ground layer 112 and the power layer 113 be quarantined. The power layer 113 is electrically connected to the transmission line 1111 electrically connected to a plurality of power contacts 15, the power layer 113 is provided with a plurality of second openings 1131, and the plurality of second openings 1131 are electrically connected to a plurality of The multiple transmission lines 1111 of the high-frequency differential signal contact 11 correspond to each other, which can be used to prevent crosstalk interference.

The adapter board 1 can also include a common ground layer 114, the common ground layer 114 includes conductive materials, the common ground layer 114 is arranged at intervals on one side of the power layer 113, and an insulating material can be provided between the power supply layer 113 and the common ground layer 114 for isolation. . The common ground layer 114 is electrically connected to a plurality of ground lines 1112 , and the common ground layer 114 is electrically connected to the outer metal shielding layer 25 of the cable 2 .

The cable 2 includes a plurality of high-frequency differential signal transmission lines 21, a plurality of power supply transmission lines 22, a plurality of low-frequency differential signal transmission lines 23, an outer metal shielding layer 25 and an outer insulating layer 26 (as shown in Figure 5), a plurality of High-frequency differential signal transmission lines 21, multiple power transmission lines 22 and multiple low-frequency differential signal transmission lines 23 are arranged in the outer metal shielding layer 25, and a plurality of grounding contacts 13 are electrically connected to the outer metal shielding layer 25. The outer insulating layer 26 Wrapped outside the outer metal shielding layer 25 . One end of multiple high-frequency differential signal transmission lines 21 is electrically connected to multiple high-frequency differential signal contacts 11, one end of multiple low-frequency differential signal transmission lines 23 is electrically connected to multiple low-frequency differential signal contacts 14, and multiple power transmission lines One end of 22 is electrically connected to a plurality of power contacts 15 respectively. In addition, the surfaces of the plurality of high-frequency differential signal transmission lines 21 are each coated with a metal shield 211, and the plurality of metal shields 211 are respectively in contact with the plurality of ground contacts 13, so that the plurality of metal shields 211 and the outer metal shield 25 also form a grounded. In this embodiment, a plurality of power transmission lines 22 and a plurality of low-frequency differential signal transmission lines 23 are located close to the center of the outer metal shielding layer 25, and a plurality of high-frequency differential signal transmission lines 21 are arranged on the plurality of power transmission lines 22 and a plurality of low-frequency differential signal transmission lines. The periphery of the signal transmission line 23.

In this embodiment, the plurality of high-frequency differential signal transmission lines 21 may each include a cable conductor 212, a first insulating layer 213, an inner metal shielding layer 214, and a second insulating layer 215. The first insulating layer 213 wraps outside the cable conductor 212 , the inner metal shielding layer 214 wraps outside the first insulating layer 213 , and the second insulating layer 215 wraps outside the inner metal shielding layer 214 . One ends of the cable conductors 212 of the multiple high-frequency differential signal transmission lines 21 are respectively electrically connected to the multiple high-frequency differential signal contacts 11, and the inner metal shielding layers 214 and the outer metal shielding layers 25 of the multiple high-frequency differential signal transmission lines 21 are electrically connected to each other. pass through to form a ground. The plurality of ground contacts 13 can be electrically connected to the outer metal shielding layer 25 through at least one conductive element 19 .

The male end structure of the USB Type-C cable of the present invention may further include a male connector 3 , and the male connector 3 is electrically connected to the adapter board 1 . The male connector 3 is a USB Type-C connector, and its structure is not limited. In this embodiment, the male connector 3 includes an insulating body 31 and a plurality of transmission conductors 32, the plurality of transmission conductors 32 are disposed on the insulating body 31, and one end of the plurality of transmission conductors 32 is electrically connected to the adapter board 1, and the plurality of transmission conductors 32 can be electrically connected to the plurality of high-frequency differential signal contacts 11 , the plurality of power supply contacts 15 and the plurality of low-frequency differential signal contacts 14 through the plurality of transmission lines 1111 .

The outside of the adapter plate 1 can be coated with an insulating inner mold 16, the insulating inner mold 16 extends to the junction of the adapter plate 1 and the cable 2, and the insulating inner mold 16 extends to the adapter plate 1 and the male connector Connector 3 connection. The insulating inner mold 16 and the outer part of the male connector 3 can be covered with a metal shell 17, and the metal shell 17 is integrally formed to simplify the structure and improve the strength. The outside of the metal shell 17 can be covered with an insulating shell 18. The male connector 3 and the part of the metal shell 17 covering the male connector 3 protrude out of the insulating shell 18, and the near front end of the insulating shell 18 can be surrounded A guiding slope 181 can avoid interference with the rubber sleeve when the male connector 3 is inserted.

The male end structure of the USB Type-C cable of the present invention may further include a first circuit board 4 (as shown in FIGS. 7 to 9 ), and one side of the first circuit board 4 is provided with a plurality of high-frequency differential signal contacts on the board. 41 and a plurality of on-board grounding contacts 43 , and on the other side of the first circuit board 4 are provided a plurality of on-board low-frequency differential signal contacts 44 and a plurality of on-board power contacts 45 . The other ends of the multiple high-frequency differential signal transmission lines 21 are electrically connected to the high-frequency differential signal contacts 41 on the multiple boards, and the other ends of the multiple low-frequency differential signal transmission lines 23 are respectively electrically connected to the low-frequency differential signal contacts on the multiple boards. 44 . The other ends of the power transmission lines 22 are electrically connected to the power contacts 45 on the board. Surfaces of the plurality of high-frequency differential signal transmission lines 21 are additionally coated with an external metal shield 216 , and the plurality of external metal shields 216 respectively contact the plurality of ground contacts 43 on the board.

In this embodiment, the first circuit board 4 is a multi-layer board structure (as shown in FIG. 10 ), the first circuit board 4 may include a circuit board surface 411, and a plurality of boards are arranged on the circuit board surface 411. The upper transmission line 4111 is used to electrically connect multiple on-board high-frequency differential signal contacts 41, multiple on-board low-frequency differential signal contacts 44, and multiple on-board power contacts 45, and multiple on-board transmission lines 4111 extend to the circuit One end of the board surface 411 , the circuit board surface 411 is also provided with a plurality of on-board grounding lines 4112 for electrically connecting a plurality of on-board grounding contacts 43 respectively.

The first circuit board 4 can also include a board ground layer 412, the board ground layer 412 includes conductive material, the board ground layer 412 is arranged on one side of the circuit board surface layer 411 at intervals, between the circuit board surface layer 411 and the board ground layer 412 Insulation material can be provided between them to isolate them. The board ground layer 412 is electrically connected to a plurality of board ground lines 4112, and the board ground layer 412 is provided with a plurality of third openings 4121, and the plurality of third openings 4121 are electrically connected to a plurality of board high frequency circuits. Multiple on-board transmission lines 4111 of the differential signal contact 41 correspond to each other, which can be used to prevent crosstalk interference.

The first circuit board 4 can also include a board power supply layer 413, the board power supply layer 413 includes conductive material, the board power supply layer 413 is arranged on one side of the board ground layer 412 at intervals, between the board ground layer 412 and the board power supply layer 413 Insulation material can be provided between them to isolate them. The board power supply layer 413 is electrically connected to the on-board transmission line 4111 electrically connected to a plurality of on-board power supply contacts 45, the board power supply layer 413 is provided with a plurality of fourth openings 4131, and the plurality of fourth openings 4131 are connected to The multiple on-board transmission lines 4111 electrically connected to the high-frequency differential signal contacts 41 on the multiple boards correspond to each other, and can be used to prevent crosstalk interference.

The first circuit board 4 may also include a board common ground layer 414. The board common ground layer 414 includes conductive materials. Insulation material can be provided between them to isolate them. The board common ground layer 414 is electrically connected to a plurality of board ground lines 4112 , and the board common ground layer 414 is electrically connected to the outer metal shielding layer 25 of the cable 2 .

The male end structure of the USB Type-C cable of the present invention may further include a second circuit board 5, a first connector 46 is arranged on the first circuit board 4, and the first connector 46 is electrically connected to the first circuit plate 4. A second connector 51 is disposed on the second circuit board 5 , and the second connector 51 is electrically connected to the second circuit board 5 . The first connector 46 and the second connector 51 are inserted into each other to form an electrical connection.

Features and functions of the present invention are:

The cable male end structure of the present invention includes an adapter board and a cable, one side of the adapter board is provided with a plurality of high-frequency differential signal contacts and a plurality of ground contacts, and the other side of the adapter board is provided with a plurality of low-frequency differential signal contacts and Multiple power contacts. The cable includes multiple high-frequency differential signal transmission lines, multiple power transmission lines, multiple low-frequency differential signal transmission lines, an outer metal shielding layer and an outer insulation layer, multiple high-frequency differential signal transmission lines, multiple power transmission lines and multiple low-frequency Differential signal transmission lines are set inside the outer metal shielding layer, multiple grounding contacts are electrically connected to the outer metal shielding layer, and the outer insulating layer is covered outside the outer metal shielding layer, multiple high-frequency differential signal transmission lines, multiple low-frequency differential signal transmission lines and one end of a plurality of power transmission lines are respectively electrically connected to a plurality of high-frequency differential signal contacts, a plurality of low-frequency differential signal contacts, and a plurality of power contacts. Each of the metal shields is in contact with multiple grounding contacts, so that the multiple metal shields and the outer metal shield are grounded. Thus, a modular design can be formed, and the transmission speed can be increased, attenuation can be reduced, and interference can also be reduced through the ground loop, effectively reducing the problems of EMI and RFI.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of patent protection of the present invention, so all equivalent changes made by using the description of the present invention and the contents of the accompanying drawings are all included in the protection of rights of the present invention in the same way within range.

Claims (20)

1. The utility model provides a public end structure of USBType-C cable which characterized in that includes:

One surface of the adapter plate is provided with a plurality of high-frequency differential signal contacts and a plurality of grounding contacts, and the other surface of the adapter plate is provided with a plurality of low-frequency differential signal contacts and a plurality of power supply contacts; and

A cable, comprising a plurality of high frequency differential signal transmission lines, a plurality of power transmission lines, a plurality of low frequency differential signal transmission lines, an outer metal shielding layer and an outer insulating layer, wherein the plurality of high frequency differential signal transmission lines, the plurality of power transmission lines and the plurality of low frequency differential signal transmission lines are disposed in the outer metal shielding layer, the plurality of ground contacts are electrically connected to the outer metal shielding layer, the outer insulating layer is coated outside the outer metal shielding layer, one end of the plurality of high frequency differential signal transmission lines is electrically connected to the plurality of high frequency differential signal contacts, one end of the plurality of low frequency differential signal transmission lines is electrically connected to the plurality of low frequency differential signal contacts, one end of the plurality of power transmission lines is electrically connected to the plurality of power contacts, and a metal shielding member is coated on the surface of each of the plurality of high frequency differential signal transmission lines, the metal shields are respectively contacted with the grounding contacts, so that the metal shields and the outer metal shielding layer form grounding.

2. the USB Type-C cable male-end structure of claim 1, wherein the plurality of high frequency differential signal contacts are arranged in pairs, the plurality of high frequency differential signal contacts are arranged in a row, the plurality of low frequency differential signal contacts are arranged in pairs, the plurality of power contacts are located on both sides of the plurality of low frequency differential signal contacts, and the plurality of low frequency differential signal contacts and the plurality of power contacts are arranged in a row.

3. The USB Type-C cable male end structure of claim 1, wherein the interposer includes a substrate surface layer, the substrate surface layer has a plurality of transmission lines thereon for electrically connecting the plurality of high frequency differential signal contacts, the plurality of low frequency differential signal contacts and the plurality of power contacts, respectively, the plurality of transmission lines extend to one end of the substrate surface layer, and the substrate surface layer has a plurality of ground lines thereon for electrically connecting the plurality of ground contacts, respectively.

4. The USB Type-C cable male end structure of claim 3, wherein the interposer further comprises a ground layer disposed on one side of the surface layer of the substrate at intervals, the ground layer being electrically connected to the plurality of ground traces, the ground layer having a plurality of first openings corresponding to the plurality of transmission lines electrically connected to the plurality of high frequency differential signal pads.

5. The USB Type-C cable male end structure of claim 4, wherein the adapter board further comprises a power layer, the power layer is disposed at one side of the ground layer at intervals, the power layer is electrically connected to the transmission lines electrically connected to the power contacts, the power layer has a plurality of second openings corresponding to the transmission lines electrically connected to the high frequency differential signal contacts.

6. the USB Type-C cable male end structure of claim 5, wherein the interposer further comprises a common ground layer, the common ground layer is disposed at an interval on one side of the power layer, the common ground layer is electrically connected to the plurality of grounding lines, and the common ground layer is electrically connected to the outer metal shielding layer of the cable.

7. The utility model provides a public end structure of USBType-C cable which characterized in that includes:

one surface of the adapter plate is provided with a plurality of high-frequency differential signal contacts and a plurality of grounding contacts, and the other surface of the adapter plate is provided with a plurality of low-frequency differential signal contacts and a plurality of power supply contacts; and

A cable, which comprises a plurality of high-frequency differential signal transmission lines, a plurality of power transmission lines, a plurality of low-frequency differential signal transmission lines, an outer metal shielding layer and an outer insulating layer, wherein the plurality of high-frequency differential signal transmission lines, the plurality of power transmission lines and the plurality of low-frequency differential signal transmission lines are arranged in the outer metal shielding layer, the plurality of power transmission lines and the plurality of low-frequency differential signal transmission lines are close to the center of the outer metal shielding layer, the plurality of high-frequency differential signal transmission lines are arranged at the periphery of the plurality of power transmission lines and the plurality of low-frequency differential signal transmission lines, the plurality of ground contacts are electrically connected to the outer metal shielding layer, the outer insulating layer is coated outside the outer metal shielding layer, and one ends of the plurality of high-frequency differential signal transmission lines are respectively electrically connected to the plurality of high-frequency differential signal contacts, one end of each of the low-frequency differential signal transmission lines is electrically connected to the low-frequency differential signal contacts, one end of each of the power transmission lines is electrically connected to the power contacts, a metal shielding member is coated on each of the surfaces of the high-frequency differential signal transmission lines, and the metal shielding members are in contact with the ground contacts respectively, so that the metal shielding members and the outer metal shielding layer form grounding.

8. the USB Type-C cable male end structure of claim 7, wherein each of the high frequency differential signal transmission lines comprises a cable conductor, a first insulating layer, an inner metal shielding layer and a second insulating layer, the first insulating layer covers the cable conductor, the inner metal shielding layer covers the first insulating layer, the second insulating layer covers the inner metal shielding layer, one end of the cable conductor of each of the high frequency differential signal transmission lines is electrically connected to the high frequency differential signal contacts, and the inner metal shielding layer and the outer metal shielding layer of each of the high frequency differential signal transmission lines are grounded.

9. The USB Type-C cable male-end structure of claim 7, wherein the plurality of ground contacts are electrically connected to the outer metal shielding layer through at least one conductive member.

10. The utility model provides a public end structure of USBType-C cable which characterized in that includes:

One surface of the adapter plate is provided with a plurality of high-frequency differential signal contacts and a plurality of grounding contacts, and the other surface of the adapter plate is provided with a plurality of low-frequency differential signal contacts and a plurality of power supply contacts; the plurality of high-frequency differential signal contacts are arranged in pairs, the plurality of high-frequency differential signal contacts are arranged in a row, the plurality of low-frequency differential signal contacts are arranged in pairs, the plurality of power contacts are positioned on two sides of the plurality of low-frequency differential signal contacts, and the plurality of low-frequency differential signal contacts and the plurality of power contacts are arranged in a row;

A cable, comprising a plurality of high frequency differential signal transmission lines, a plurality of power transmission lines, a plurality of low frequency differential signal transmission lines, an outer metal shielding layer and an outer insulating layer, wherein the plurality of high frequency differential signal transmission lines, the plurality of power transmission lines and the plurality of low frequency differential signal transmission lines are disposed in the outer metal shielding layer, the plurality of ground contacts are electrically connected to the outer metal shielding layer, the outer insulating layer is coated outside the outer metal shielding layer, one end of the plurality of high frequency differential signal transmission lines is electrically connected to the plurality of high frequency differential signal contacts, one end of the plurality of low frequency differential signal transmission lines is electrically connected to the plurality of low frequency differential signal contacts, one end of the plurality of power transmission lines is electrically connected to the plurality of power contacts, and a metal shielding member is coated on the surface of each of the plurality of high frequency differential signal transmission lines, the metal shields are respectively contacted with the grounding contacts, so that the metal shields and the outer metal shielding layer form grounding; and

And the male connector is electrically connected with the adapter plate.

11. The USB Type-C cable male end structure of claim 10, wherein the male connector comprises an insulative housing and a plurality of transmission conductors disposed on the insulative housing, one end of the transmission conductors being electrically connected to the interposer, and the transmission conductors being electrically connected to the high frequency differential signal contacts, the power contacts and the low frequency differential signal contacts.

12. The USB Type-C cable male end structure of claim 11, wherein the external portion of the adapter plate is wrapped by an insulating inner mold, the insulating inner mold extends to a connection between the adapter plate and the cable, and the insulating inner mold extends to a connection between the adapter plate and the male connector.

13. The male end structure of claim 12, wherein the insulating inner mold and the male connector are externally covered by a metal shell, and the metal shell is integrally formed.

14. The USB Type-C cable male end structure of claim 13, wherein the metal shell is covered by an insulating shell, the male connector and a portion of the metal shell covering the male connector extend out of the insulating shell, and a guiding bevel is disposed around the insulating shell near a front end of the insulating shell.

15. the utility model provides a public end structure of USBType-C cable which characterized in that includes:

One surface of the adapter plate is provided with a plurality of high-frequency differential signal contacts and a plurality of grounding contacts, and the other surface of the adapter plate is provided with a plurality of low-frequency differential signal contacts and a plurality of power supply contacts; the plurality of high-frequency differential signal contacts are arranged in pairs, the plurality of high-frequency differential signal contacts are arranged in a row, the plurality of low-frequency differential signal contacts are arranged in pairs, the plurality of power contacts are positioned on two sides of the plurality of low-frequency differential signal contacts, and the plurality of low-frequency differential signal contacts and the plurality of power contacts are arranged in a row;

A cable, comprising a plurality of high frequency differential signal transmission lines, a plurality of power transmission lines, a plurality of low frequency differential signal transmission lines, an outer metal shielding layer and an outer insulating layer, wherein the plurality of high frequency differential signal transmission lines, the plurality of power transmission lines and the plurality of low frequency differential signal transmission lines are disposed in the outer metal shielding layer, the plurality of ground contacts are electrically connected to the outer metal shielding layer, the outer insulating layer is coated outside the outer metal shielding layer, one end of the plurality of high frequency differential signal transmission lines is electrically connected to the plurality of high frequency differential signal contacts, one end of the plurality of low frequency differential signal transmission lines is electrically connected to the plurality of low frequency differential signal contacts, one end of the plurality of power transmission lines is electrically connected to the plurality of power contacts, and the surface of the plurality of high frequency differential signal transmission lines is coated with a metal shielding and an outer metal shielding, the metal shields are respectively contacted with the grounding contacts, so that the metal shields and the outer metal shielding layer form grounding; and

A first circuit board, one side of which is provided with a plurality of on-board high-frequency differential signal contacts and a plurality of on-board ground contacts, and the other side of which is provided with a plurality of on-board low-frequency differential signal contacts and a plurality of on-board power contacts; the other ends of the plurality of high-frequency differential signal transmission lines are electrically connected to the high-frequency differential signal contacts on the plurality of boards respectively, the other ends of the plurality of low-frequency differential signal transmission lines are electrically connected to the low-frequency differential signal contacts on the plurality of boards respectively, the other ends of the plurality of power transmission lines are electrically connected to the power contacts on the plurality of boards respectively, and the plurality of external metal shields are in contact with the ground contacts on the plurality of boards respectively.

16. The USB Type-C cable male end structure of claim 15, wherein the first circuit board includes a surface layer, the surface layer having a plurality of on-board transmission lines thereon for electrically connecting the plurality of on-board high frequency differential signal contacts, the plurality of on-board low frequency differential signal contacts and the plurality of on-board power contacts, respectively, the plurality of on-board transmission lines extending to an end of the surface layer, the surface layer further having a plurality of on-board ground lines thereon for electrically connecting the plurality of on-board ground contacts, respectively.

17. The USB Type-C cable male end structure of claim 16, wherein the first circuit board further comprises a ground plane, the ground plane being disposed at an interval on one side of the surface layer of the circuit board, the ground plane being electrically connected to the plurality of on-board ground traces, the ground plane having a plurality of third openings, the third openings corresponding to the plurality of on-board transmission traces electrically connected to the plurality of on-board high frequency differential signal contacts.

18. The USB Type-C cable male end structure of claim 17, wherein the first circuit board further comprises a board power layer, the board power layer being disposed at a side of the board ground layer in a spaced apart manner, the board power layer being electrically connected to the on-board transmission lines electrically connected to the on-board power contacts, the board power layer being provided with a plurality of fourth openings corresponding to the on-board transmission lines electrically connected to the on-board high frequency differential signal contacts.

19. the USB Type-C cable male end structure of claim 18, wherein the first circuit board further comprises a board common ground layer, the board common ground layer is disposed at an interval on one side of the board power supply layer, the board common ground layer is electrically connected to the plurality of board ground lines, and the board common ground layer is electrically connected to the outer metal shielding layer of the cable.

20. the USB Type-C cable male end structure of claim 19, further comprising a second circuit board, wherein the first circuit board is disposed with a first connector electrically connected to the first circuit board, the second circuit board is disposed with a second connector electrically connected to the second circuit board, and the first connector and the second connector are plugged together to form an electrical connection.