WO2020078276A1

WO2020078276A1 - Connector, circuit board, and communication device

Info

Publication number: WO2020078276A1
Application number: PCT/CN2019/110781
Authority: WO
Inventors: 方炜; 查阳; 晏辉如; 贾苗苗; 郝顺; 许帅
Original assignee: 华为技术有限公司
Priority date: 2018-10-19
Filing date: 2019-10-12
Publication date: 2020-04-23

Abstract

A connector, a circuit board, and a communication device, the connector comprising: a first connecting end and a cable (11), the first connecting end comprising: a first end (12), the first end (12) comprising two end pieces arranged opposite to one another, each end piece comprising a connecting part (121); the connecting part (121) is connected to the cable (11), and the thickness of the part of the connecting part connected to the cable (11) is less than the thickness of the part of the connecting part not connected to the cable (11). When the present structure is used, the position on the connecting part (121) connected to the cable (11) is thinned so that the thickness of said position on the connecting part (121) connected to the cable (11) is smaller than the thickness of the connecting part (121) not connected to the cable (11); thus, when the cable (11) is connected to the connecting part (121), the entire thickness after the cable (11) is connected to the connecting part (121) is almost equal to the thickness of the part of the connecting part (121) not connected to the cable (11), ensuring that the wire bonding area matches the impedance of the cable (11) and the end pieces, improving signal transmission effects.

Description

Connector, circuit board and communication equipment

Cross-reference of related applications

This application requires the priority of the Chinese patent application filed on October 19, 2018 in the Chinese Patent Office, with the application number 201811221499.3, and the application name is "a connector, circuit board and communication equipment", and is requested to be in December 2018 The priority of the Chinese patent application filed on the 1st with the Chinese Patent Office, application number 201811460632.0, and the application name is "a connector, circuit board and communication equipment", the entire content of which is incorporated by reference in this application.

Technical field

This application relates to the field of communication technology, and in particular, to a connector, a circuit board, and a communication device.

Background technique

With the continuous improvement of bandwidth and speed requirements, it is increasingly difficult for low-cost and high-cost PCB interconnects to meet performance and cost requirements. In the specific connection, the connector used includes two connection ends, one of which is used to connect the panel side, the other end is used to connect the circuit board, and the two connection ends are connected by a cable. When specifically connected, the cable It is soldered to the terminal of the connection end, but the cable path is relatively long, so it is easy to cause relatively large loss.

Summary of the invention

This application provides a connector, a circuit board, and a communication device to improve the connection effect of the connector.

In a first aspect, a connector is provided. One end of the connector is a first connection end, and the connector further includes a cable connected to the first connection end. In a specific setting, the first connection end includes a first terminal, which is a terminal in the female head, and includes two oppositely arranged terminal strips, the two terminal strips are arranged at intervals, wherein each terminal strip includes one A connecting part for connecting to a cable. When the cable is specifically connected to the connection portion, the thickness of the portion where the connection portion is connected to the cable is smaller than the thickness of the portion of the connection portion that is not connected to the cable. When this structure is adopted, the position where the cable is connected to the connection portion is thinned, so that the thickness of the position where the cable is connected to the connection portion is less than the thickness of the connection portion that is not connected to the cable, so that When the connection part is connected, the overall thickness of the cable and the connection part is approximately equal to the thickness of the part of the connection part that is not connected to the cable, so that the impedance of the wire bonding area matches the cable and the terminal piece, and the effect of signal transmission is improved .

When specifically fixing the two terminal pieces of the first terminal, the first connecting end further includes a fixing member, the fixing member includes a two-layer structure, wherein the first fixing member is used to fix the first terminal, specifically, Fix the relative positions of the two terminal strips in the first terminal. The second fixing member is nested outside the first fixing member and wraps the first fixing member, thereby forming two layers of protection for the terminal strip. Wherein, when the first fixing member and the second fixing member are provided, the dielectric constant of the first fixing member is lower than the dielectric constant of the second fixing member. When the first fixing member with a low dielectric constant is used, it is used to reduce the capacitance at this position, which is favorable for impedance matching with the first terminal. In addition, when the second fixing member with a high dielectric constant is used, for example, the dielectric constant of the first fixing member is 2, and the dielectric constant of the second fixing member is 4. Alternatively, the first fixing member is an insulator, and the second fixing member is conductive plastic. Thereby improving electromagnetic shielding.

When the first fixing piece specifically fixes the terminal piece, the first fixing piece includes two opposing first fixing parts, wherein each first fixing part is used to correspondingly fix the two terminal pieces of the first terminal. When the first terminals are in a row, each first fixing portion fixes a row of terminal strips.

When the second fixing member is specifically provided, the second fixing member includes a second fixing portion corresponding to each first fixing portion, and the two second fixing portions are detachably connected. When a detachable connection is used, the detachable connection may be a detachable snap connection, or a different connection method such as a bolt, screw connection, or bolt assembly connection.

When the number of the first terminals is plural, different types of terminals can be used as the first terminals, for example, the number of the first terminals is plural, and some of the first terminals are high-speed terminals, and the other part of the first terminals The terminal is a low speed terminal.

In addition, the first connection end further includes a connection block, and the connection block is provided with solder pins that are connected to the terminal strips of the low-speed terminals in a one-to-one correspondence.

When the fixing member is specifically provided, the number of the fixing member is plural, and one of the fixing members is used to fix the low-speed terminal, and the remaining fixing members are used to fix the high-speed terminal. Therefore, different module structures are formed, and a plurality of fixing members are detachably fixedly connected, so that the first terminals with different needs can be pieced together. For example, the first terminal fixed by the fixing members at both ends is a high-speed terminal, and the first terminal fixed by the fixing member at the middle is a low-speed terminal.

In order to improve the signal transmission effect of the connector, the first connection end further includes a first shield shell, and the first terminal is located in the first shield shell. The external signal is shielded by the first shield shell.

In order to further improve the shielding effect, the first connection end further includes a metal ring sleeved on the cable. The metal ring is sleeved on the cable and is close to the first shielding shell.

In addition, the connector further includes a second connection end, the second connection end includes: a second terminal connected to the cable, and a third fixing member wrapping the second terminal, wrapping the third fixing A fourth fixing member, wherein the dielectric constant of the third fixing member is lower than the fourth fixing member. The third fixing member uses a lower dielectric constant to reduce the capacitance at this position, which is beneficial to impedance matching with the second terminal. In addition, when a fourth fixing member with a high dielectric constant is used, it is beneficial to improve the shielding effect of the entire fourth fixing member.

In order to realize the connection between the second connection end and the circuit board, the end of the second terminal away from the cable is provided with an elastic bending structure. The flexible bending structure is connected with the golden finger on the circuit board to improve the connection effect.

When the second connection end is specifically provided, the second connection end further includes a second shield shell covering the plurality of second terminals. The second terminal is shielded by the second shield shell.

When specifically fixing the second connection end, an engagement structure for engaging the second connection end with the circuit board may be provided on the second shield shell.

In a specific embodiment, the engaging structure includes a U-shaped fixed frame rotatably connected to the second shield shell, and an engaging protrusion provided on a side wall of the second shield shell.

In a second aspect, a circuit board is provided, the circuit board includes a circuit board body, and a gold finger disposed on the circuit board body and used for electrical connection with the second terminal; The connecting seat with the matching structure.

When the connection base is specifically provided, the connection base includes: a base fixed on the circuit board body, a flip cover that is rotatably connected to the base and relatively slidable, and the base is provided with A bending structure in which the second shielding shell of the connection end is engaged; the flip cover is provided with a protrusion, and the base is provided with a clamping groove matched with the protrusion.

In order to facilitate fixing with the second connecting end, when the engaging structure includes a U-shaped fixing frame, the side wall of the connecting seat is provided with a bending structure that engages with the second shield shell and with the Card slot for U-shaped fixed frame.

According to a third aspect, a communication device is provided. The communication device includes the connector according to any one of the above items, and the circuit board according to any one of the above items.

When this structure is adopted, the position where the cable is connected to the connection portion is thinned, so that the thickness of the position where the cable is connected to the connection portion is less than the thickness of the connection portion that is not connected to the cable, so that When the connection part is connected, the total thickness of the cable and the connection part is approximately equal to the thickness of the part of the connection part that is not connected with the cable, thereby ensuring the impedance matching of the wire bonding area and the cable and the terminal strip, improving the signal transmission effect. In addition, through the thinning structure provided, the distance between the entire cable and the shield box and the distance between the portion of the connecting portion that is not connected to the cable and the shield box are small, and the overall shielding effect is improved.

BRIEF DESCRIPTION

FIG. 1 is an exploded schematic diagram of a first connection end provided by an embodiment of the present application;

2 is an exploded schematic view of the female head structure provided by the embodiment of the present application;

3 is a schematic diagram of a connection between a first terminal and a cable provided by an embodiment of this application;

4 is a schematic diagram of connection between a metal sheet and a cable provided by an embodiment of the present application;

5 is a schematic diagram of the connection between the second fixing portion and the metal sheet provided by an embodiment of the present application;

6 is a schematic diagram of the connection between the third fixing portion and the metal sheet provided by the embodiment of the present application;

7 is a schematic diagram of connection between a connection block and a first terminal provided by an embodiment of the present application;

8 is a schematic structural diagram of a connection block provided by an embodiment of the present application;

9 is an exploded schematic diagram of a module structure provided by an embodiment of the present application;

10 is an assembled schematic diagram of a module structure provided by an embodiment of the present application;

11 is a schematic structural diagram of a first shielding shell provided by an embodiment of the present application;

12 is a cross-sectional view of a first shield shell provided by an embodiment of the present application;

13 is a schematic structural diagram of a metal ring provided by an embodiment of the present application;

14 is a schematic structural diagram of a conductive plastic shell provided by an embodiment of the present application;

15 is an exploded schematic view of the second connection end provided by an embodiment of the present application;

16 is an assembly diagram of a second connection end provided by an embodiment of the present application;

17 is a schematic structural diagram of a second connection end provided by an embodiment of the present application;

18 is a schematic diagram of the structure of the connection base provided by the embodiment of the present application;

19a to 19b are schematic diagrams of the assembly of the connection base and the second connection end provided by the embodiments of the present application;

20a to 20c are schematic diagrams of assembling another connecting base and a second connecting end provided by embodiments of the present application.

detailed description

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings.

In order to facilitate understanding of the connector provided by the embodiments of the present application, first, the application scenarios of the connector provided by the embodiments of the present application are described. The connector is used to transmit the electrical signals on the circuit board to the panel side of the entire device to communicate with external devices Connect. The connector provided by the embodiment of the present application will be described below with reference to the drawings.

The connector provided by the embodiment of the present application includes two ends, a first connection end and a second connection end 90, respectively, and the first connection end and the second connection end 90 are connected by a cable 11; wherein, the first connection end It is used to connect with the panel side of the device, and the second connection terminal 90 is used to connect with the circuit board.

As shown in FIGS. 1 and 2, FIG. 1 is an exploded schematic view of a first connecting end provided by an embodiment of the present application; FIG. 2 is an exploded schematic view of a female head structure 10 provided by an embodiment of the present application; the first connecting end includes a female head Structure 10, the female head structure 10 includes first terminals 12, and the number of the first terminals 12 may be one or more, wherein, when there are multiple, the plurality of first terminals 12 are arranged in a single row . For the structure of the first terminal 12, reference may be made to FIG. 2, wherein FIG. 2 shows the structure of the first terminal 12, the first terminal 12 includes two oppositely arranged terminal strips, and there is a gap between the two terminal strips , The gap to form a space into which the male head is inserted. Each of the terminal strips has a connection portion 121. In the structure shown in FIG. 3, the two ends of the terminal strip are respectively a connection portion 121 and a plug-in portion, wherein the plug-in portion is used for electrical connection with the male pin The connection 121 is used to connect the cable 11. When the connection portion 121 is provided, as shown in FIG. 4, the thickness of the portion where the connection portion 121 is connected to the cable 11 is smaller than the thickness of the portion of the connection portion 121 that is not connected to the cable 11, so that When the connection portion 121 is connected, the overall thickness of the cable 11 and the portion of the connection portion 121 connected thereto is approximately the same as the thickness of the portion of the connection portion 121 that is not connected to the cable 11, as can be seen from the structure shown in FIG. 4 Out, the thickness of the portion of the connecting portion 121 connecting the cable 11 and the non-connecting cable 11 is the same, that is, the cross-sectional area is approximately the same. Therefore, when the signal is propagated, the signal reflection caused by the impedance mismatch is reduced, thereby improving the signal The effect of transmission.

With continued reference to FIG. 2, when the female head structure 10 is provided, it is necessary to fix the two terminal pieces of each terminal, and when fixing, fix it by using a fixing member. The fixing member includes two parts, a first fixing member and a second fixing member, wherein the first fixing member is used to fix the relative positions of the two terminal strips. When specifically setting the first fixing member, either an integrated structure or a split structure may be used. As shown in FIG. 5, the first fixing member adopts a split structure, which includes two parts, specifically two first fixing portions 132 disposed oppositely, and each first fixing portion 132 is used to fix the first terminal 12 Terminal strip. Since the structures of the two first fixing portions 132 are arranged symmetrically, FIG. 5 shows only one of the first fixing portions 132. When the number of the first terminals 12 is plural, the first terminals 12 are arranged in a single row, and each first fixing portion 132 fixes a row of terminal pieces.

As shown in FIGS. 2 and 6, when the second fixing member is specifically provided, the second fixing member is nested on the first fixing member and wraps the first fixing member. In order to improve the protection effect, the second fixing member is made of rigid material, such as hard plastic. When the second fixing member is specifically provided, the second fixing member corresponds to the first fixing member. When the first fixing member adopts an integrated structure, the corresponding second fixing member also has an integrated structure. When the first fixing part includes two first fixing parts 132, the corresponding second fixing part also includes two second fixing parts 131, and the second fixing parts 131 correspond to the first fixing parts 132 one by one. As shown in FIGS. 2 and 6, FIG. 2 shows the case where there are two second fixing portions 131, and FIG. 2 shows the structure of one of the second fixing portions 131. When two second fixing portions 131 are used, each second fixing portion 131 wraps one first fixing portion 132. In addition, when the second fixing portion 131 is provided, the two second fixing portions 131 are fixedly connected in a detachable manner. For example, it is connected by common connectors such as bolts, screws, and bolt assemblies, or by snap-fit connection. In the structure shown in FIG. 2, the two second fixing portions 131 are engaged by snaps. As shown in FIG. 2, protruding cards are provided at both ends of each second fixing portion 131 respectively When the two second fixing portions 131 are relatively fixed, the hooks are engaged by the provided hooks, so that the two rows of terminal pieces can be relatively fixed, forming a slot structure of the female head structure 10. In addition, in order to improve the stability of the relative position between the terminal strips of the first terminal 12, the female head structure 10 provided in the embodiment of the present application may optionally include a positioning sleeve 14, which is sleeved on two The opposite end of the second fixing portion 131 is the end where the terminal piece is exposed on the second connecting portion 121.

The female structure 10 is formed by the first fixing member, the second fixing member and the positioning sleeve 14 provided above. In addition, in order to improve the electrical performance, when the first fixing member and the second fixing member are provided, the dielectric constant of the first fixing member is lower than that of the second fixing member. When the first fixing member with a low dielectric constant is used, the capacitance at this position can be reduced, which is favorable for impedance matching with the terminal piece of the first terminal 12. For example, the dielectric constant of the first fixing member is 2, and the dielectric constant of the second fixing member is 4. Alternatively, the dielectric constant of the first fixing member is 3, and the dielectric constant of the second fixing member is 5 and other different installation methods. Of course, except for the first fixing member and the second fixing member, the insulating body is used. When the first fixing member and the second fixing member are provided, the first fixing member can also be used as an insulator, and the second fixing member can be made of conductive plastic. By using the second fixing member as conductive plastic and wrapping the first fixing member, it can be improved Electromagnetic shielding effect on the terminal.

When the number of the first terminals 12 is plural, different types of terminals can be used as the first terminals 12, for example, the number of the first terminals 12 is plural, and some of the first terminals 12 are high-speed terminals, and the other part The first terminal 12 is a low-speed terminal. Or all the first terminals 12 are high-speed terminals, or all are low-speed terminals. In a specific arrangement, as shown in FIGS. 7 and 8, FIG. 7 shows a structure in which a plurality of first terminals 12 are partly high-speed terminals and partly low-speed terminals. When connecting, the low-speed terminal needs to be connected to the circuit board. Therefore, the female head structure 10 further includes a connecting block 20, and the connecting block 20 is provided with solder pins 51 corresponding to the terminal strips of the low-speed terminal in one-to-one correspondence. During installation, as shown in FIGS. 7 and 8, the cable 11 connected to the low-speed terminal is directly connected to the connection block 20, and the soldering feet 51 provided on the connection block 20 are used to connect to the circuit board.

In addition to using the connection block 20 to realize the connection between the low-speed terminal and the circuit board, other methods can also be used. For example, when the first terminal 12 is fixed by the above-mentioned fixing member, the number of fixing members is multiple, and one of the fixing members It is used to fix low-speed terminals, and the remaining fixing parts are used to fix high-speed terminals. Thus, different module structures 50 are formed. Specifically, as shown in FIG. 9, FIG. 9 shows an exploded schematic view when different fixing members are used. Multiple fixing members are detachable and fixedly connected, so that they can be pieced together into different required first terminals. 12. As shown in FIG. 10, the first terminals 12 fixed by the fixing members at both ends are high-speed terminals, and the first terminals 12 fixed by the fixing members at the middle are low-speed terminals. When specifically implementing the detachable connection, the above-mentioned positioning sleeve 14 may be used to form the above-mentioned different module structures 50 into a whole.

When the above female head structure 10 is adopted, the first connection end may include one female head structure 10 or two female head structures 10, as shown in FIG. 1, the two female head structures 10 are arranged in front and rear. Of course, a female head structure 10 can also be used.

When forming the first connection end, in addition to the above-mentioned female head structure 10, an outer shell 30 is also provided, as shown in the exploded schematic view in FIG. The outer shell 30 is nested outside the above-mentioned female head structure 10 for fixing the above-mentioned female head structure 10, so that the first connecting end forms an integral structure. In addition, the first connecting end further includes a fixing structure 40 to keep the structure inside the outer housing 30 stable.

In addition, in order to improve the signal transmission effect, as shown in FIGS. 11 and 12, the first connection end further includes a first shield shell, and the above-mentioned first terminal 12 is located in the first shield shell. More specifically, the above-mentioned female head structure 10 and the outer shell 30 are nested in the first shielding shell to avoid interference from external signals. In addition, when the first shield shell is provided, the connection between the terminal strip and the cable 11 is thinned, so that the distance between the welding portion of the terminal strip and the cable 11 to the first shield shell and the connection portion with the terminal strip The distances from other positions of 121 to the first shielding shell are similar, so that the shielding effect can be improved.

In addition, when the first fixing member and the second fixing member are used, since the dielectric constant of the second fixing member is relatively large, the insulation effect between the first shield shell and the first terminal 12 can be improved, and at the same time, the The effect of shielding.

In order to further improve the shielding effect, as shown in FIG. 13, in a specific feasible embodiment, the first connection end further includes a metal ring 70 that is sleeved on the cable 11. The metal ring 70 is sleeved on the portion of the cable 11 exposed to the outer casing 30.

In addition to the above-mentioned way of fixing the cable 11, as shown in FIG. 14, conductive plastic injection can also be performed on the end of the second fixing member close to the cable 11 to form a conductive plastic shell 80 to form a cavity while fixing the cable 11 Body resonance suppresses noise reduction.

The connector provided by the embodiment of the present application, in addition to the above-mentioned first connection end, also has a second connection end 90. The second connection end 90 may adopt the second connection end in the prior art, or may adopt other structural forms Second connector. However, when the connection terminal in the prior art is connected to the circuit board, the overall height exceeds the height of the chip conventionally provided on the circuit board, and a heat sink is generally provided above the chip in the prior art, which causes the connection terminal to fail The layout is at the bottom of the heat sink, and can only be placed outside the heat sink, resulting in the connection terminal being far away from the chip, and this distance still has to be routed through the PCB, which further increases the loss. In order to improve the problem, an embodiment of the present application provides a second terminal. As shown in FIG. 15, FIG. 15 shows a structure of the second connection terminal 90. The second connecting end 90 includes: a second terminal 91 connected to the cable 11, and a third fixing member 94 that wraps the second terminal 91 and a fourth fixing member 92 that wraps the third fixing member 94, wherein the third fixing The dielectric constant of the member 94 is lower than that of the fourth fixing member 92. The third fixing member 94 uses a lower dielectric constant to reduce the capacitance at this position, which is favorable for impedance matching with the second terminal 91. In addition, when the fourth fixing member 92 is provided, the fourth fixing member 92 uses conductive plastic to form a conductive plastic shell, which forms a cavity resonance and suppresses noise while fixing the cable 11.

As shown in FIG. 15, in order to realize the connection between the second connection end 90 and the circuit board, the end of the second terminal 91 away from the cable 11 is provided with an elastic bending structure. The elastic bending structure is connected to the golden finger provided on the circuit board to increase the contact pressure between the second terminal 91 and the golden finger.

In addition, in order to shield external signals, the second connection terminal 90 further includes a second shield shell 93 which covers a plurality of second terminals 91. Specifically, as shown in FIGS. 16 and 17, the above The second shield shell 93 is rotatably connected to the fourth fixing member 92 and can wrap the structure where the second terminal 91 is exposed outside the fourth fixing member 92.

When the second connection terminal 90 is connected to the circuit board, it can be implemented in different ways. For example, in a specific solution, it is fixed by a connection seat provided on the circuit board. The structure of the connection base is shown in FIG. 18, the connection base includes a base 100 fixed on the circuit board body, a flip 101 that is rotatably connected to the base 100 and relatively slidable, the flip 101 is provided with protrusions, and the base 100 is provided with There is a card slot matching the protrusion, or the flip cover 101 is provided with a card slot, and the base 100 is provided with a protrusion for engaging with the card slot. Refer to FIG. 19a and FIG. 19b together. In specific use, the flip cover 101 is opened, and the second connection end 90 is put into the base 100. At this time, the second terminal 91 is connected with the golden finger, and then the flip cover 101 is closed, and the card is inserted through the slot and the protrusion The second connection end 90 is fixed in the connection seat and provides a pressing force for electrically connecting the gold finger to the second terminal 91.

Of course, in addition to the above structure, other methods may be used. For example, in another method, the second shield shell 93 is provided with an engagement structure for engaging the second connection end 90 with the circuit board. As shown in Figures 20a to 20c. The clamping structure includes two parts, one part is a U-shaped fixing frame 95 that is rotationally connected to the second shield shell 93, and at the same time, correspondingly, the base of the connection base is provided with a clamping slot that cooperates with the U-shaped fixing frame 95 The side wall of the connecting seat is provided with a bending structure that is engaged with the second shield shell 93.

When assembling, as shown in FIG. 20b, first put the second shield shell 93 into the base 100 of the connection base, at this time, the bending structure catches the second shield shell 93, and then, rotate the U-shaped fixing frame 95, As shown in FIG. 20c, the U-shaped fixing frame 95 is snapped into the slot. In the above clamping structure, it can be seen that the bending structure and the engaging position of the U-shaped fixing frame 95 and the clamping slot are respectively located at opposite ends of the second shield shell 93. Therefore, when clamping, the first The stability of the electrical connection between the second connection terminal 90 and the circuit board.

At the same time, since the second connection end 90 adopts the structure of the elastic sheet, the overall thickness of the entire second connection end 90 after being connected to the circuit board is relatively low, compared with the matching method of the male head and the female head used in the prior art In other words, the height of the second connection terminal 90 when fixed on the circuit board is reduced, so that the second connection terminal 90 can be disposed at the bottom of the heat sink of the chip.

An embodiment of the present application also provides a circuit board, which includes a circuit board body, and a gold finger provided on the circuit board body to cooperate with the second terminal 91; and further includes a connection seat for cooperating with the snap-fit structure . The connection base can be referred to the two different structures described above.

When this structure is adopted, the position where the cable 11 is connected to the connection portion 121 is thinned so that the thickness of the position where the cable 11 is connected to the connection portion 121 is smaller than the thickness of the connection portion 121 that is not connected to the cable 11 , So that when the cable 11 is connected to the connection portion 121, the overall thickness of the cable 11 after being connected to the connection portion 121 is approximately equal to the thickness of the portion of the connection portion 121 that is not connected to the cable 11, thereby ensuring the bonding wire area and the wire The impedance matching of the cable and the terminal strip improves the signal transmission effect. In addition, through the thinned structure provided, the distance between the entire cable 11 and the shield box and the distance between the portion of the connecting portion 121 that is not connected to the cable 11 and the shield box are small, thereby improving the overall shielding effect. At the same time, the method of matching the golden finger with the second terminal can effectively reduce the height of the connector when it is connected to the circuit board, so that the second connection end of the connector and the circuit board can be arranged under the heat sink of the circuit board , Reduce the wiring on the circuit board, further reduce the loss.

An embodiment of the present application further provides a communication device including the connector of any one of the above items, and the circuit board of any of the above items.

When this structure is adopted, the position where the cable 11 is connected to the connection portion 121 is thinned so that the thickness of the position where the cable 11 is connected to the connection portion 121 is smaller than the thickness of the connection portion 121 that is not connected to the cable 11 , So that when the cable 11 is connected to the connection portion 121, the overall thickness of the cable 11 after being connected to the connection portion 121 is approximately equal to the thickness of the portion of the connection portion 121 that is not connected to the cable 11, thereby ensuring the bonding wire area The impedance matching of the cable and the terminal strip improves the signal transmission effect. In addition, through the thinning structure provided, the distance between the entire cable 11 and the shield box is smaller than the distance between the portion of the connecting portion 121 that is not connected to the cable 11 and the shield box, and the overall shielding effect is improved.

Claims

A connector, characterized by comprising: a first connection end and a cable, wherein,

The first connection end includes: a first terminal, the first terminal includes two terminal pieces disposed oppositely, each terminal piece includes a connection portion; the connection portion is connected to the cable, and the connection portion The thickness of the portion connected to the cable is smaller than the thickness of the portion where the connecting portion is not connected to the cable.
The connector according to claim 1, wherein the first connection end further comprises a fixing member, wherein the fixing member comprises a first fixing member for fixing the first terminal, and is nested in A second fixing member outside the first fixing member, and the dielectric constant of the first fixing member is lower than the dielectric constant of the second fixing member; or,

The first fixing member is an insulator, and the second fixing member is conductive plastic.
The connector according to claim 2, wherein the first fixing member comprises two first fixing portions arranged oppositely, and each first fixing portion is used for correspondingly fixing two of the first terminals Terminal piece.
The connector according to claim 3, wherein the second fixing member includes a second fixing portion corresponding to each first fixing portion, and the two second fixing portions are detachably connected.
The connector according to claim 2, wherein the number of the first terminals is plural, and some of the first terminals are high-speed terminals, and another part of the first terminals are low-speed terminals.
The connector according to claim 5, wherein the first connection end further comprises a connection block, and the connection block is provided with solder pins that are in one-to-one correspondence with the terminal pieces of the low-speed terminal.
The connector according to claim 5, wherein the number of the fixing members is plural, and one of the fixing members is used to fix the low-speed terminal, and the remaining fixing members are used to fix the Describe high-speed terminals.
The connector according to claim 1, wherein the first connection end further includes a first shield shell, and the first terminal is located in the first shield shell.
The connector according to claim 8, wherein the first connection end further comprises a metal ring sleeved on the cable.
The connector according to any one of claims 1 to 9, further comprising a second connection end, the second connection end including: a second terminal connected to the cable, and wrapping the first The third fixing member of the two terminals wraps the fourth fixing member of the third fixing member, wherein the dielectric constant of the third fixing member is lower than that of the fourth fixing member.
The connector according to claim 10, wherein an end of the second terminal away from the cable is provided with an elastic bending structure.
The connector according to claim 10, wherein the second connection end further comprises a second shield shell covering the second terminal.
The connector according to claim 12, wherein the second shield shell is provided with an engaging structure for engaging the second connecting end with the circuit board.
The connector according to claim 13, wherein the engaging structure includes a U-shaped fixing frame rotatably connected to the second shield shell.
A circuit board for connecting with the connector according to claim 13 or 14, wherein the circuit board includes a circuit board body, and is provided on the circuit board body and used for connecting with the second A gold finger electrically connected to the terminal; further comprising a connecting seat for cooperating with the snap structure.
The circuit board according to claim 15, wherein the connection base comprises: a base fixed on the circuit board body, a flip cover which is rotatably connected with the base and relatively slidable, and the base is provided with a useful cover A bending structure that is engaged with the second shielding shell of the second connection end; the flip cover is provided with a protrusion, and the base is provided with a clamping groove matched with the protrusion.
The circuit board according to claim 15, wherein, when the engaging structure includes a U-shaped fixing frame, the side wall of the connecting seat is provided with an engaging bend for engaging with the second shielding shell The structure and the card slot which is engaged with the U-shaped fixed frame.
A communication device, characterized by comprising the connector according to any one of claims 1 to 14, and the circuit board according to any one of claims 15 to 17.