Terminal structure, terminal assembly, board end connector and connector assembly

Abstract

The utility model provides a terminal structure, a terminal assembly, a board end connector and a connector assembly, and relates to the technical field of connectors, the terminal structure comprises a plurality of first grounding terminals, and a first signal terminal is arranged between the adjacent first grounding terminals; the grounding conductor is arranged at one side of the first grounding terminal and the first signal terminal and extends along a first direction, the first direction is parallel to the arrangement direction of the plurality of first grounding terminals, and one end of each of the plurality of first grounding terminals is connected with the grounding conductor through a bending part; the problem of improving the signal transmission quality of the connector is solved.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and more specifically, relates to a terminal structure, a terminal assembly, a board-end connector, and a connector assembly. Background Technology

[0002] Terminal structures, as a core component of connectors, enable signal connection and transmission. Currently, the requirements for signal transmission are increasingly stringent, and signal transmission quality is a crucial indicator for evaluating connector quality. Therefore, improving the signal transmission quality of connectors has always been a problem that needs to be solved in the connector industry. Utility Model Content

[0003] The purpose of this invention is to provide a terminal structure, terminal assembly, board-end connector, and connector assembly to solve the problem of improving the signal transmission quality of connectors.

[0004] To achieve the above objectives, this utility model provides a terminal structure, comprising:

[0005] Multiple first grounding terminals are provided, and a first signal terminal is provided between adjacent first grounding terminals;

[0006] A grounding conductor is disposed on one side of the first grounding terminal and the first signal terminal and extends along a first direction, the first direction being parallel to the arrangement direction of the plurality of first grounding terminals, and one end of the plurality of first grounding terminals is connected to the grounding conductor through a bend.

[0007] Optionally, the first grounding terminals are arranged in two parallel rows, and the grounding conductor is arranged between the two rows of the first grounding terminals.

[0008] Optionally, the first grounding terminal is connected to the bent portion to form an L-shape.

[0009] Optionally, the two bends connected to adjacent first grounding terminals are connected to a portion of the grounding conductor to form a U-shape.

[0010] Optionally, a plurality of the first grounding terminals are arranged along a first straight line, and a plurality of the first signal terminals are arranged along a second straight line parallel to the first straight line, with a gap formed between the second straight line and the first straight line.

[0011] Optionally, the second straight line is further away from the grounding conductor than the first straight line.

[0012] Optionally, the first signal terminals are arranged in pairs, with a pair of first signal terminals provided between adjacent first ground terminals.

[0013] This utility model also provides a terminal assembly, including:

[0014] The terminal structure described above;

[0015] Multiple second grounding terminals and multiple second signal terminals are provided, wherein the multiple second grounding terminals are respectively in contact with and cooperate with multiple first grounding terminals, and the multiple second signal terminals are respectively in contact with and cooperate with multiple first signal terminals.

[0016] This utility model also provides a board-end connector, including the terminal structure described above.

[0017] Optionally, the board-end connector further includes:

[0018] A housing for connection to a circuit board;

[0019] A first insulator is disposed within the housing, and the terminal structure is disposed within the first insulator, with at least a portion of the first grounding terminal and at least a portion of the first signal terminal exposed.

[0020] Optionally, the first insulator is provided with a first groove with an open top, the terminal structure is disposed in the first groove, the interior of the first groove is provided with a support portion below the terminal structure, and a first insertion space is formed between the terminal structure and the groove wall of the first groove.

[0021] Optionally, a second insertion space is formed between the outer shell and the first insulator, and the outer shell, which serves as the side wall of the second insertion space, has a lock hole.

[0022] This utility model also provides a connector assembly, including:

[0023] The aforementioned board-end connectors;

[0024] A wire-end connector that is plugged into and mates with the board-end connector.

[0025] Optionally, the wire connector includes:

[0026] The second insulator has multiple second grounding terminals inside, and a second signal terminal is provided between adjacent second grounding terminals. The second grounding terminals and the second signal terminals are respectively connected to the signal line and the ground line of the cable. The multiple second grounding terminals are respectively in contact with the multiple first grounding terminals, and the multiple second signal terminals are respectively in contact with the multiple first signal terminals.

[0027] Optionally, the lower side of the second insulator is provided with a downwardly extending first plug portion, the first plug portion is provided with a second groove, the side wall of the second groove is provided with a terminal receiving groove, the second grounding terminal and the second signal terminal are embedded in the terminal receiving groove and at least protrude from the terminal receiving groove.

[0028] Optionally, a second insertion portion extending downward is provided on one side of the second insulator, and an elastic latch is provided on one side of the second insertion portion, wherein a locking protrusion is provided on the surface of the movable part of the elastic latch.

[0029] This utility model provides a terminal structure, a terminal assembly, a board-end connector, and a connector assembly. Its advantages are as follows: the first signal terminal of the terminal structure is disposed between adjacent first ground terminals. A long strip of grounding conductor extending along the arrangement direction of the first ground terminal and the first signal terminal is disposed on the side. Each first ground terminal is connected to one side of the grounding conductor through a bend. In this way, two adjacent first ground terminals and a section of grounding conductor connected to them form a semi-enclosed grounding structure for the first signal terminal between them. This semi-enclosed grounding structure forms a good isolation effect around the first signal terminal, which can effectively improve the signal transmission quality.

[0030] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0031] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0032] Figure 1 A schematic diagram of a terminal structure according to an embodiment of the present invention is shown.

[0033] Figure 2 A three-dimensional schematic diagram of a terminal assembly according to one embodiment of the present invention is shown.

[0034] Figure 3 A top sectional view of a terminal assembly according to an embodiment of the present invention is shown.

[0035] Figure 4 A schematic diagram of a board-end connector according to one embodiment of the present invention is shown.

[0036] Figure 5 A schematic diagram of a connector assembly on a circuit board according to an embodiment of the present invention is shown.

[0037] Figure 6 A schematic diagram of a wire-end connector according to one embodiment of the present invention is shown.

[0038] Figure 7 A schematic cross-sectional view of a connector assembly according to one embodiment of the present invention is shown.

[0039] Figure 8 A schematic diagram of another cross-section of a connector assembly according to one embodiment of the present invention is shown.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. First grounding terminal; 2. First signal terminal; 3. Grounding conductor; 4. Bending part; 5. Circuit board; 6. Second grounding terminal; 7. Second signal terminal; 8. Housing; 9. First insulator; 10. Support part; 11. First insertion space; 12. Second insertion space; 13. Locking hole; 14. Cable; 15. Second insulator; 16. First insertion part; 17. Second groove; 18. Second insertion part; 19. Elastic buckle; 20. Locking protrusion; 21. Pull strap. Detailed Implementation

[0042] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0043] like Figure 1 As shown, this utility model provides a terminal structure, including:

[0044] Multiple first grounding terminals 1, with a first signal terminal 2 provided between adjacent first grounding terminals 1;

[0045] The grounding conductor 3 is disposed on one side of the first grounding terminal 1 and the first signal terminal 2 and extends along a first direction, which is parallel to the arrangement direction of the plurality of first grounding terminals 1. One end of the plurality of first grounding terminals 1 is connected to the grounding conductor 3 through a bend.

[0046] Specifically, to address the issue of improving the signal transmission quality of connectors, the first signal terminal 2 of the terminal structure provided by this utility model is disposed between adjacent first ground terminals 1. A long strip-shaped grounding conductor 3 extending along the arrangement direction of the first ground terminal 1 and the first signal terminal 2 is disposed on the side. Each first ground terminal 1 is connected to one side of the grounding conductor 3 through a bend. In this way, two adjacent first ground terminals 1 and a section of grounding conductor 3 connected to them form a semi-enclosed grounding structure for the first signal terminal 2 located between them. This semi-enclosed grounding structure forms a good isolation effect around the first signal terminal 2, which can effectively improve the signal transmission quality.

[0047] In this embodiment, two rows of first grounding terminals 1 are arranged in parallel, and the grounding conductor 3 is arranged between the two rows of first grounding terminals 1.

[0048] Specifically, two rows of first grounding terminals 1 are spaced apart, forming a contact surface on the side of the two rows of grounding terminals that are far apart from each other. The second grounding terminal 6 connected to it contacts the contact surface to realize the connection of the grounding terminals. The grounding conductor 3 is located between the two rows of first grounding terminals 1, and the first grounding terminals 1 in different rows are respectively connected to both sides of the grounding conductor 3 through the bending part 4. Similarly, the first signal terminals 2 are also arranged in two rows.

[0049] Furthermore, the grounding conductor 3 can be configured as a long strip structure, in which case the bent portions 4 on both sides are connected to the two sides of the same long strip structure. Alternatively, the grounding conductor 3 can be configured as two long strip structures side by side, in which case the bent portions 4 on both sides are connected to the two long strip structures respectively.

[0050] In other embodiments, the first grounding terminal 1 may have only one row or there may be more rows in a connector.

[0051] In this embodiment, the first grounding terminal 1 is connected to the bent portion to form an L-shape.

[0052] Specifically, the first grounding terminal 1 is elongated, one end of which can be used to connect to the circuit board 5 and can be bent as necessary. The other end of the first grounding terminal 1 is connected to one end of the bent part 4, forming an L-shape. The other end of the bent part 4 is connected to the side of the grounding conductor 3.

[0053] In this embodiment, the two bends connected to the adjacent first grounding terminal 1 are connected to a portion of the grounding conductor 3 to form a U-shape.

[0054] Specifically, the grounding conductor 3 located between two adjacent bends 4 is connected to the two adjacent bends 4 to form a U-shaped structure. This U-shaped structure is a semi-enclosed grounding structure for the first signal terminal 2 located between the two adjacent bends 4 and the two first grounding terminals 1 connected thereto. This semi-enclosed grounding structure forms a good isolation effect around the first signal terminal 2, which can effectively improve the signal transmission quality.

[0055] In this embodiment, the first grounding terminal 1, the bent portion 4, and the grounding conductor 3 are an integral structure.

[0056] In this embodiment, a plurality of first grounding terminals 1 are arranged along a first straight line, and a plurality of first signal terminals 2 are arranged along a second straight line parallel to the first straight line, with a gap formed between the second straight line and the first straight line.

[0057] Specifically, multiple first grounding terminals 1 and first signal terminals 2 located between adjacent first grounding terminals 1 are arranged alternately. The first grounding terminals 1 are arranged in a row along a first straight line, and the first signal terminals 2, which are alternately distributed between adjacent first grounding terminals 1, are arranged along a second straight line different from the first straight line.

[0058] In other embodiments, the first straight line and the second straight line may also coincide, that is, a plurality of first grounding terminals 1 and the first signal terminals 2 located between adjacent first grounding terminals 1 are arranged in the same row.

[0059] In this embodiment, the second straight line is further away from the grounding conductor 3 than the first straight line.

[0060] Specifically, the first grounding terminal 1 is located outside the first signal terminal 2 between adjacent first grounding terminals 1, which makes the U-shaped semi-enclosed grounding structure longer, more completely enclosed, and with better isolation effect.

[0061] In other embodiments, the second straight line may be closer to the grounding conductor 3 than the first straight line, that is, the first grounding terminal 1 is located inside the first signal terminal 2 between adjacent first grounding terminals 1, which may also have the effect of improving the isolation effect.

[0062] In this embodiment, the first signal terminals 2 are arranged in pairs, and a pair of first signal terminals 2 are arranged between adjacent first ground terminals 1.

[0063] Specifically, the paired first signal terminals 2 can be used to transmit differential signals to form differential signal pairs, so that there are two first signal terminals 2 between two adjacent first ground terminals 1.

[0064] In this embodiment, the distance between the two rows of first grounding terminals 1 is 2.5 mm, the distance between the two rows of first signal terminals 2 is 2.0 mm, the distance between the center lines of the same row of first grounding terminals 1 is 2.0 mm, and the two first signal terminals 2 located between two adjacent first grounding terminals 1 are centrally located, and the distance between their center lines is 0.6 mm.

[0065] In other embodiments, a first signal terminal 2 or more first signal terminals 2 may also be provided between two adjacent first ground terminals 1.

[0066] like Figure 2 As shown, this utility model also provides a terminal assembly, including:

[0067] The terminal structure described above;

[0068] Multiple second grounding terminals 6 and multiple second signal terminals 7 are provided. The multiple second grounding terminals 6 are respectively in contact with multiple first grounding terminals 1, and the multiple second signal terminals 7 are respectively in contact with multiple first signal terminals 2.

[0069] Specifically, the second grounding terminal 6 and the second signal terminal 7 are terminals that cooperate with the first grounding terminal 1 and the first signal terminal 2 in the above-mentioned terminal structure to realize signal transmission. The second grounding terminal 6 and the first grounding terminal 1 are a pair of connectors that are plugged into each other. The two terminals are connected by the connectors to achieve contact connection. The second signal terminal 7 and the first signal terminal 2 are in the same way.

[0070] In this embodiment, the arrangement of the second grounding terminal 6 and the second signal terminal 7 is adapted to the arrangement of the first grounding terminal 1 and the first signal terminal 2 in the above-described terminal structure.

[0071] In this embodiment, the second signal terminal 7 and the first signal terminal 2 are in contact with the outer surfaces of the first ground terminal 1 and the first signal terminal 2, respectively, to achieve signal conduction and transmission; in this connection state, such as Figure 3 As shown, in the contact mating state, the terminal assembly has a semi-enclosed grounding structure on the outside of the signal terminal of the adjacent grounding terminal. This semi-enclosed grounding structure provides isolation for the signal transmission of the terminal assembly and can improve the signal transmission quality.

[0072] like Figure 4 As shown, this utility model also provides a board-end connector, including the terminal structure described above.

[0073] In this embodiment, the board-end connector further includes:

[0074] Housing 8, housing 8 is used to connect to circuit board 5;

[0075] The first insulator 9 is disposed inside the housing 8, and the terminal structure is disposed inside the first insulator 9, with at least a portion of the first grounding terminal 1 and at least a portion of the first signal terminal 2 exposed.

[0076] Specifically, the outer shell 8 can be made of metal, and the first insulator 9 can be made of injection molding. The terminal structure inside the first insulator 9 exposes the contact surfaces of the first grounding terminal 1 and the first signal terminal 2 so as to connect with the terminals in the corresponding wire connectors to achieve signal transmission. The terminal structure has the isolation effect described above, which can improve the signal transmission quality.

[0077] In this embodiment, a first groove with an open top is provided inside the first insulator 9, and a terminal structure is provided inside the first groove. A support portion 10 is provided below the terminal structure inside the first groove, and a first insertion space 11 is formed between the terminal structure and the groove wall of the first groove.

[0078] Specifically, in the aforementioned terminal structure, the grounding conductor 3, the bent portion 4, and the first grounding terminal 1 form an inverted U-shaped structure with an open bottom. A support portion 10 is provided inside the opening. The support portion 10 not only supports the inverted U-shaped structure but also supports all the first signal terminals 2, and exposes the outer contact surfaces of the first signal terminals 2 and the first grounding terminal 1 to the inside and outside of the first groove, so that when the board-end connector is plugged into the corresponding wire-end connector, the terminals can make contact connection. An annular first insertion space 11 is formed between the outer periphery of the aforementioned terminal structure and the groove wall of the first groove. The first insertion space 11 can be used to receive the insertion of a plug portion on the wire-end connector to ensure the stability of the insertion and the stability of the terminal connection.

[0079] In this embodiment, a second insertion space 12 is formed between the outer shell 8 and the first insulator 9, and the outer shell 8, which serves as the side wall of the second insertion space 12, has a lock hole 13.

[0080] Specifically, the second insertion space 12 can be used to receive the insertion of another insertion part on the wire end connector, and the locking hole 13 opened on the housing 8 therein can be used to engage with the locking protrusion 20 of the latch on the wire end connector to lock the inserted wire end connector.

[0081] like Figure 5 As shown, this utility model also provides a connector assembly, including:

[0082] The aforementioned board-end connectors;

[0083] The wire-end connector is used to connect and mate with the board-end connector.

[0084] Specifically, the aforementioned board-end connector is mounted on circuit board 5, and the wire-end connector that mates with it connects to cable 14. The two are connected to achieve signal transmission between the board end and the wire end. When the board-end connector and the wire-end connector are connected, their internal terminals form as follows: Figure 2 The terminal assembly shown above, under the effect of the semi-enclosed grounding structure, improves the isolation effect on the signal terminals, thereby improving the signal transmission quality.

[0085] In this embodiment, the wire connector includes:

[0086] The second insulator 15 has multiple second grounding terminals 6 inside, and a second signal terminal 7 is provided between adjacent second grounding terminals 6. The second grounding terminals 6 and the second signal terminals 7 are respectively connected to the signal line and the ground line of the cable 14. The multiple second grounding terminals 6 are respectively in contact with multiple first grounding terminals 1, and the multiple second signal terminals 7 are respectively in contact with multiple first signal terminals 2.

[0087] Specifically, such as Figure 6 As shown, the second grounding terminal 6 and the second signal terminal 7 of the wire connector are disposed within the second insulator 15, and one end of the cable 14 is disposed within the second insulator 15. The signal line and the ground line of the cable 14 are respectively connected to the second signal terminal 7 and the second grounding terminal 6. The second grounding terminal 6 and the second signal terminal 7 are arranged in a manner that matches the first grounding terminal 1 and the first signal terminal 2. The contact surfaces of their lower ends are in contact with the contact surfaces of the first grounding terminal 1 and the first signal terminal 2.

[0088] In this embodiment, a first plug-in portion 16 extending downward is provided on the lower side of the second insulator 15, a second groove 17 is provided in the first plug-in portion 16, a terminal receiving groove is provided on the side wall of the second groove 17, and the second grounding terminal 6 and the second signal terminal 7 are embedded in the terminal receiving groove and at least protrude from the terminal receiving groove.

[0089] Specifically, the first insertion part 16 has an overall annular structure and is inserted into the first insertion space 11. The second groove 17 is inserted into the aforementioned terminal structure. The terminal structure is inserted into the second groove 17, and the contact surfaces of the second ground terminal 6 and the second signal terminal 7 are in contact with the contact surfaces of the first ground terminal 1 and the first signal terminal 2 to achieve signal conduction and transmission. In this embodiment, as shown... Figure 7 and Figure 8 As shown, the contact surface of the second grounding terminal 6 is pressed against the outside of the first grounding terminal 1, and the contact surface of the second signal terminal 7 is pressed against the outside of the first signal terminal 2.

[0090] In this embodiment, a second plug portion 18 extending downward is provided on one side of the second insulator 15, and an elastic latch 19 is provided on one side of the second plug portion 18. A locking protrusion 20 is provided on the surface of the movable part of the elastic latch 19.

[0091] Specifically, the second insertion part 18 has a plate-like structure that can be inserted and cooperated with the second insertion space 12. An elastic latch 19 is provided on the outer side of the second insertion part 18. The elastic latch 19 includes an elastic body bent into a U-shape. One side of the elastic body forms a fixed part and is embedded in the mounting groove on the outer side of the second insertion part 18. The other side of the elastic body forms a movable part that can be movably set. The protruding locking protrusion 20 provided on the outer side of the movable part engages with the locking hole 13 on the outer shell 8, which can realize the locking of the wire end connector on the board end connector.

[0092] In this embodiment, a pull strap 21 is also included, which is connected to the outer end of the movable part to facilitate unlocking of the lock.

[0093] In this embodiment, the above-mentioned wire-end connector adopts a structure in which the cable 14 exits from the side. The wire-end connector and the connector assembly are relatively low in height. The overall height of the connector assembly on the circuit board 5 can be less than 8mm.

[0094] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A terminal structure characterized by comprising: The terminal structure comprises: a plurality of first ground terminals, a first signal terminal being arranged between adjacent first ground terminals; a ground conductor arranged on one side of the first ground terminals and the first signal terminals and extending in a first direction parallel to the arrangement direction of the plurality of first ground terminals, one end of the plurality of first ground terminals being connected to the ground conductor through a bending portion.

2. The terminal structure according to claim 1, characterized by The first ground terminals are arranged in two parallel rows, and the ground conductor is arranged between the two rows of first ground terminals.

3. The terminal structure according to claim 1, characterized by The first ground terminals are connected to the bending portions to form an L shape.

4. The terminal structure according to claim 1, characterized by Two bending portions connected to adjacent first ground terminals are connected to part of the ground conductor to form a U shape.

5. The terminal structure according to claim 1, characterized by The plurality of first ground terminals are arranged in a first straight line, and the plurality of first signal terminals are arranged in a second straight line parallel to the first straight line, a gap being formed between the second straight line and the first straight line.

6. The terminal structure according to claim 5, characterized in that The second straight line is farther away from the ground conductor than the first straight line.

7. The terminal structure according to claim 1, characterized by The first signal terminals are arranged in pairs, and a pair of first signal terminals is arranged between adjacent first ground terminals.

8. A terminal assembly characterized by, The terminal structure comprises: The terminal structure according to any one of claims 1-7; a plurality of second ground terminals and a plurality of second signal terminals, the plurality of second ground terminals being respectively in contact with the plurality of first ground terminals, and the plurality of second signal terminals being respectively in contact with the plurality of first signal terminals.

9. A board-to-board connector characterized by comprising: The terminal structure comprises:

10. The board-to-board connector according to claim 9, wherein The board-end connector further comprises: a housing for connecting to a circuit board; a first insulator arranged in the housing, the terminal structure being arranged in the first insulator, and at least part of the first ground terminals and at least part of the first signal terminals being exposed.

11. The board-to-board connector according to claim 10, wherein A first recess with an open top is arranged in the first insulator, the terminal structure being arranged in the first recess, a support portion being arranged below the terminal structure inside the first recess, and a first plug space being formed between the terminal structure and the groove wall of the first recess.

12. The board-to-board connector according to claim 10, wherein A second plug space is formed between the housing and the first insulator, and the housing, as a side wall of the second plug space, is provided with a lock hole.

13. A connector assembly characterized by, The board-end connector comprises: The board-end connector according to any one of claims 9-12; a wire-end connector in plug connection with the board-end connector.

14. The connector assembly of claim 13, wherein, The wire-end connector comprises: a second insulator, an inside of the second insulator being provided with a plurality of second ground terminals and a second signal terminal arranged between adjacent second ground terminals, the second ground terminals and the second signal terminal being respectively connected to signal lines and ground lines of a cable, the plurality of second ground terminals being respectively in contact with the plurality of first ground terminals, and the plurality of second signal terminals being respectively in contact with the plurality of first signal terminals.

15. The connector assembly of claim 14, wherein, The lower side of the second insulator is provided with a downwardly extending first plug-in part, a second recess is arranged in the first plug-in part, a terminal accommodating groove is arranged on the side wall of the second recess, and the second grounding terminal and the second signal terminal are embedded in the terminal accommodating groove and at least protrude from the terminal accommodating groove.

16. The connector assembly of claim 14, wherein, One side of the second insulator is provided with a downwardly extending second plug-in part, one side of the second plug-in part is provided with an elastic lock catch, and the movable part surface of the elastic lock catch is provided with a lock protrusion.

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