CN115133352A - Wire-to-board connector - Google Patents

Abstract

The application discloses wire to board connector relates to the relevant technical field of connector for solve current wire to board connector and have electromagnetic interference's problem. The application provides a pair of line to board connector includes line end connector and plate end connector, and pair of line to board connector is still including locating line end signal terminal pair and the ground plate in the line end connector to and locate plate end signal terminal pair and the ground terminal in the plate end connector, line end signal terminal pair has the butt joint contact that extends towards the plate end connector, the ground plate has the ground pin that extends towards the plate end connector, and plate end signal terminal pair has the orientation head contact that the line end connector extends, and ground terminal has the ground connection head that extends towards the line end connector. The butt-joint contact and the head contact are contacted to form a signal butt-joint position, the grounding pin is contacted with the grounding head to form a grounding butt-joint position, and the signal butt-joint position and the grounding butt-joint position are staggered in the butt-joint direction Z.

Description

Wire-to-Board Connector

technical field

The present application relates to the technical field of connectors, in particular to a wire-to-board connector.

Background technique

Input/output connectors include board-to-board connectors, wire-to-wire connectors, and wire-to-board connectors. Wherein, the wire-to-board connector includes a wire end connector connected with the cable and a board end connector connected with the circuit board.

However, in the field of high-speed connectors, the signal transmission rate is getting faster and faster, and the consequent signal crosstalk will also increase. At the same time, since the butt joints of the terminal group in the board-end connector and the terminal group in the wire-end connector in the prior art are in the same horizontal plane in the butting direction of the two, the board-end connector and the wire-end connector are Electromagnetic interference is present at this docking.

Therefore, there is an urgent need to provide a new type of wire-to-board connector with good electromagnetic interference prevention effect.

SUMMARY OF THE INVENTION

The present application provides a wire-to-board connector to solve the problem of electromagnetic interference in the wire-to-board connector in the prior art.

In order to achieve the above purpose, the wire-to-board connector provided by the present application includes a wire-end connector and a board-end connector that is butted on the wire-end connector along the docking direction Z, and the wire-to-board connector further includes:

A wire end terminal module is arranged in the wire end connector, and includes a wire end signal terminal pair and a ground plate, the wire end signal terminal pair has a pair of contacts extending toward the board end connector, and the connection the floor has ground pins extending toward the board end connector;

A board-side terminal module is arranged in the board-side connector, and includes a board-side signal terminal pair and a ground terminal, the board-side signal terminal pair has a header contact extending toward the wire-end connector, and the the ground terminal has a ground head extending toward the wire end connector;

Wherein, after the wire-end connector and the board-end connector are mated, the pair of contacts and the head contacts are in contact to form a signal docking position, and the ground pins are in contact with the ground heads to form The ground docking position, in the docking direction Z, the signal docking position and the ground docking position are staggered.

In some embodiments of the present application, the ground pins and the head contacts are both flat plates, and the pair of contacts are formed with a pair of contacts protruding toward the head contacts, and the pair of contacts is formed on the pair of contacts. A ground contact protruding toward the ground pin is formed on the ground head, and the docking contact and the ground contact are staggered in the docking direction Z.

In some embodiments of the present application, the grounding plate includes a grounding main plate, the grounding main plate has a top edge and a bottom edge in sequence in the docking direction Z, and a plurality of spaced apart said top edges are formed on the top edge. a grounding pin, and a grounding frame portion is formed on the bottom edge;

The wire-end signal terminal pair has a base portion and a wiring contact which are connected to the pair of contacts and are formed in sequence along the butting direction Z, and the grounding frame portion is used to surround the wiring contacts.

In some embodiments of the present application, the grounding mainboard has a shielding inner surface and a shielding outer surface that are parallel to the docking direction Z and arranged opposite to each other, the grounding pin is located on the outer surface of the shielding, and the grounding frame is located on the outer surface of the shielding. On the inner surface of the shield, the ground pins extend on a plane substantially parallel to the grounding mainboard, the grounding enclosure portion extends on a plane substantially perpendicular to the grounding mainboard, the wiring contacts and the grounding enclosure The extending directions of the frame portions are the same.

In some embodiments of the present application, the grounding mainboard further has a front edge and a rear edge that are perpendicular to the top edge, and a plug portion is formed on both the front edge and the rear edge, and the plug portion extending in a plane substantially perpendicular to the grounded motherboard and outside of the shield;

The wire end terminal module further includes a long insulating support frame for supporting the wire end signal terminal pair and the grounding plate, and the insulating support frame is provided with a positioning portion connected with the plug-in portion.

In some embodiments of the present application, each of the wire-end signal terminal pairs and the grounding plate has a plurality of them, is spaced apart along the length direction of the insulating support frame, and is held in the insulating support frame;

The board-end terminal module further includes a substantially elongated insulating support, the board-end signal terminal pair and the grounding terminal both have a plurality of them, and are arranged at intervals along the length direction of the insulating support, and are kept at all the positions. An integrated structure is formed in the insulating support.

In some embodiments of the present application, the wire end connector includes an insulating housing and two sets of the wire end terminal modules installed in the insulating housing, the insulating housing is substantially convex and has an opening Facing the accommodating hole of the board end connector, the accommodating hole has a vertical first inner wall and a second inner wall facing each other in its length direction, and one of the two sets of the line terminal modules One is arranged on the first inner wall, and the other is arranged on the second inner wall;

The board-end connector includes an insulating base and two sets of the board-end terminal modules installed in the insulating base, the insulating base is substantially in a box-like structure, and the opening faces the wire-end connector, The box-shaped structure is provided with a bump structure extending toward the wire end connector, and the bump structure has a first installation side wall and a second installation side wall opposite to each other. After the board-end connectors are mated, the first installation side wall faces the first inner wall, the second installation side wall faces the second inner wall, and one of the two groups of board-end terminal modules is disposed in the The first installation side wall and the other one are arranged on the second installation side wall.

In some embodiments of the present application, the insulating housing has a first insulating portion and a second insulating portion arranged in sequence along the butting direction Z, and the insulating base is sleeved on the outer periphery of the first insulating portion , the outer side wall of the first insulating part is at least partially inversely tapered to form a guide surface, and the inner wall surface of the insulating base is formed with a tapered surface matched with the guide surface.

In some embodiments of the present application, the board-side signal terminal has a tail contact arranged opposite to the header contact, the ground terminal further has a ground tail arranged opposite to the ground header, the The tail contact and the ground tail are at least partially exposed to the mounting surface of the insulating base facing away from the wire end connector and are used for electrical connection with the circuit board; wherein,

The insulating base has a first side wall facing the first mounting side wall and a second side wall facing the second mounting side wall, the first side wall and/or the second side wall The part of the side wall close to the circuit board is an inclined plane, and an angle is formed between the inclined plane and the circuit board.

In some embodiments of the present application, the board end connector further includes an L-shaped connecting plate, the insulating base is provided with a connecting portion, and the L-shaped connecting plate has a first plate portion and a second plate portion that are perpendicular to each other. A board part, the first board part is connected with the connection part, and the second board part is connected with the circuit board.

In some embodiments of the present application, the first inner wall and the second inner wall are provided with a plurality of positioning through grooves extending along the butting direction Z at intervals, a plurality of the pair of contact heads and a plurality of the The ground pins are respectively arranged in the corresponding positioning through grooves;

The first installation side wall and the second installation side wall are provided with a plurality of terminal through grooves extending along the docking direction Z at intervals, and the plurality of the board-side signal terminal pairs and the plurality of the ground terminals are respectively It is arranged in the corresponding terminal through-slot.

In some embodiments of the present application, the second insulating portion has a horizontal surface facing the first insulating portion and a stepped surface facing away from the first insulating portion, and a distance between the stepped surface and the horizontal surface The direction from the first inner wall to the second inner wall decreases sequentially.

In some embodiments of the present application, the wire end connector further includes a metal shell disposed on the periphery of the insulating housing, and a bottom plate disposed on the side of the stepped surface facing away from the horizontal plane, the metal shell Coupling protrusions are provided on the outer sides of the two side walls in the longitudinal direction, and the coupling protrusions can increase the coupling force between the metal shell and the bottom plate.

In some embodiments of the present application, the wire-to-board connector further includes:

a fixing frame, which is arranged on the periphery of the metal shell and has a gap S between it and the outer circumferential side of the metal shell;

The limit structure is used to limit the relative position of the metal shell and the fixed frame in the butting direction Z, and the limit structure includes screws, washers and threaded holes arranged along the butting direction Z, so The threaded holes are arranged on the metal casing or the fixing frame, and a part of the gasket covers the metal casing and the other part covers the fixing frame.

Compared with the prior art, the present application forms a signal docking position by contacting the pair of contacts and the head contacts, and the grounding pin contacts the grounding head to form a ground docking position, in the docking direction. On Z, the signal docking position and the ground docking position are staggered, so that there is an appropriate distance between the signal docking position and the ground docking position in the docking direction Z, so that the connection between the wire end connector and the board end can be avoided Electromagnetic interference occurs between the connectors, thereby improving the anti-crosstalk effect of the above-mentioned wire-to-board connector.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

1 is an exploded view of a wire-to-board connector in an embodiment of the present application;

2 is a schematic structural diagram of a line end terminal module in an embodiment of the present application;

3 is a schematic structural diagram of a board-side terminal module in an embodiment of the present application;

4 is a schematic structural diagram of a line-end terminal module and a board-end terminal module after mating in an embodiment of the present application;

5 is a schematic structural diagram of an insulating housing in a wire end connector according to an embodiment of the present application;

6 is a schematic structural diagram of an insulating base in a board-end connector in an embodiment of the present application;

FIG. 7 is an exploded view of the board end connector in the embodiment of the present application;

8 is an exploded view of the line end connector in the embodiment of the present application;

9 is a schematic diagram of the external structure of the line end connector in the embodiment of the present application;

FIG. 10 is an assembly diagram of the wire end connector in the embodiment of the present application.

The main reference signs in the drawings of the specification of the present application are explained as follows:

10-wire end connector;

100-line end terminal module;

11-wire end signal terminal pair; 111-pair of contacts; 112-base; 113-wire contacts;

12-ground plate; 121-ground pin; 122-ground motherboard; 123-ground frame part; 124-plug-in part;

13-insulation support frame; 131-positioning part;

14-insulation shell; 141-accommodating hole; 1411-first inner wall; 1412-second inner wall; 1413-positioning through groove; 142-first insulating part; 1421-guide surface; 143-second insulating part; 1431 - Horizontal plane; 1432 - Step plane;

15-metal shell; 151-joint protrusion; 152-installation step hole; 153-arc groove;

16 - bottom plate;

17-fixed frame; 171-thread opening; 172-arc-shaped protrusion;

18-limiting structure; 181-screw; 182-washer; 183-threaded hole;

20-board end connector;

200-board terminal module;

21-board signal terminal pair; 211-head contact; 212-tail contact; 213-body part;

22-ground terminal; 221-ground head; 222-ground tail; 223-base;

23-insulation bracket;

24-insulation base; 241-bump structure; 2411-first mounting sidewall; 2412-second mounting sidewall; 242-cone surface; 243-first sidewall; 244-second sidewall; 245-slope ;246-terminal through slot;247-connection part;

25-L-shaped connecting plate; 251-first plate part; 252-second plate part;

30-cable;

40 - circuit board.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present application.

The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or an internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

The present application provides a wire-to-board connector, which will be described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments of the present application. In addition, in the following embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

Referring to FIGS. 1 to 4 , the present application provides a wire-to-board connector, which includes a wire-end connector 10 and a board-end connection that is butted on the wire-end connector 10 along the docking direction Z device 20. The wire end connector 10 further includes a wire end terminal module 100 arranged in the wire end connector 10 , and the wire end terminal module 100 includes a wire end signal terminal pair 11 and a ground plate 12 . The wire-end signal terminal pair 11 has a pair of contacts 111 extending toward the board-side connector 20 , and the ground plate 12 has ground pins 121 extending toward the board-side connector 20 . The board-side connector 20 includes a board-side terminal module 200 disposed in the board-side connector 20 . The board terminal module 200 includes a board terminal signal terminal pair 21 and a ground terminal 22 . The board-side signal terminal pair 21 has header contacts 211 extending toward the wire-end connector 10 , and the ground terminals 22 have grounding headers 221 extending toward the wire-end connector 10 . Wherein, after the wire end connector 10 and the board end connector 20 are mated, the pair of contacts 111 and the head contacts 211 contact to form a signal docking position, and the ground pins 121 and the The ground head 221 contacts to form a ground docking position, and in the docking direction Z (ie, the direction from top to bottom shown in FIG. 1 ), the signal docking position and the ground docking position are staggered.

Compared with the prior art, in the present application, the pair of contacts 111 and the header contacts 211 are in contact to form a signal docking position, and the ground pins 121 and the grounding head 221 are in contact to form a ground docking position. In the docking direction Z (that is, the direction from top to bottom shown in FIG. 1 ), the signal docking position and the ground docking position are staggered, so that the signal docking position and the ground docking position are in the docking direction Z There is an appropriate distance between the wire-end connectors 10 and the board-end connectors 20, thereby avoiding electromagnetic interference between the wire-end connector 10 and the board-end connector 20, thereby improving the anti-crosstalk effect of the above-mentioned wire-to-board connector.

Referring to FIG. 4 , the ground pins 121 and the head contacts 211 of the present application are both flat-plate-shaped, and the pair of contacts 111 are formed with a pair of contacts protruding toward the head contacts 211 , so The grounding head 221 is formed with a grounding contact protruding toward the grounding pin 121, and the butting contact and the grounding contact are staggered in the butting direction Z. The position of the ground contact, so that the distance between the signal docking position and the ground docking position in the docking direction Z can be controlled, and the above solution is easy to implement.

In other embodiments of the present application, the ground pins 121 and the pair of contact heads 111 are in the shape of flat plates, and a contact structure is formed on the ground head 221 and the head contacts 211 . In this solution, the aforementioned settings of the present application can also ensure that the signal docking position of the line-end signal terminal pair 11 and the board-end signal terminal pair 21 is in the stacking direction of the grounding plate 12 and the grounding terminal 22 (that is, the grounding plate). 12) in the thickness direction), which further optimizes the crosstalk performance and improves the anti-crosstalk effect of the above-mentioned wire-to-board connector.

For example, the ground contact on the grounding head 221 described above in the present application is obtained by bending the area near the end of the grounding head 221 into an arch that protrudes toward the grounding pin 121 . The contact point is obtained by bending the area of the contact head 111 near the end into an arch that protrudes towards the head contact 211 . Alternatively, the ground contact may be formed by forming a ground spring sheet bent toward the ground pin 121 in the area near the end of the grounding head 221 , and forming the ground contact in the area near the end of the contact head 111 . The abutting elastic pieces bent toward the head contacts 211 form the above-mentioned butting contacts.

Continuing to refer to FIGS. 1 to 4 , more specifically, the above-mentioned pair of contact heads 111 and the head contacts 211 are in contact to form a signal connection position. The ground pin 121 contacts with the ground head 221 to form a ground connection position. Wherein, one of the signal docking position and the ground docking position is located close to the wire end connector 10 , and the other is located close to the board end connector 20 . For example, FIG. 4 of the present application only shows an embodiment in which the ground connection position is close to the wire end connector 10 , and the signal connection position is disposed close to the board end connector 20 .

Alternatively, in order to ensure the distance between the signal docking position and the ground docking position in the docking direction Z, it is also possible to adjust the ground pin 121 , the pair of contact heads 111 , the ground head 221 and the The extended length of the header contacts 211 is achieved. For example, the extension length of the grounding pin 121 can be made larger than the extension length of the contact head 111 , and correspondingly, the extension length of the grounding head 221 connected with the grounding pin 121 can be ensured to be shorter than that with the contact head 111 the extension length of the head contact 211.

Continuing to refer to FIG. 2 , the grounding plate 12 includes a grounding main plate 122 , and the grounding main plate 122 sequentially has a top edge (ie, the upper edge in FIG. 2 ) and a bottom edge (ie, the lower edge in FIG. 2 ) in the docking direction Z edge). A plurality of the ground pins 121 are formed on the top edge, and a grounding frame portion 123 is formed on the bottom edge. The wire-end signal terminal pair 11 also has a base portion 112 and a wiring contact 113 which are connected to the pair of contacts 11 and are formed in sequence along the butting direction Z. The grounding frame portion 123 is used to surround the wiring contacts 113 to ensure that a complete grounding path is formed in the wire end signal terminal pair 11 and reduce the connection between the wiring contacts 113 in the wire end signal terminal pair 11 and the phase. Crosstalk occurs between the wire contacts 113 in the adjacent wire end signal terminal pairs 11 .

In some embodiments of the present application, the grounding main board 122 has a shielding inner surface and a shielding outer surface that are parallel to the docking direction Z and are opposite to each other. The grounding frame portion 123 is located on the shielding inner surface. Located outside the shield, the ground pins 121 extend on a plane that is roughly parallel to the grounding motherboard 122 (the plane where the grounding pins 121 are located is parallel but not coincident with the plane where the grounding motherboard 122 is located), and the grounding frame The grounding portion 123 extends on a plane substantially perpendicular to the grounding main board 122, and the wiring contacts 113 and the grounding frame portion 123 extend in the same direction, so as to ensure that the grounding frame portion 123 can completely surround the wiring contacts 113, so as to ensure that the grounding effect of the grounding motherboard 122 is better.

During specific fabrication, the grounding pin 121 is bent in the reverse direction of the Y direction and then bent toward the top again and then continues to extend toward the top, which can ensure that the grounding pin 121 has a proper deformation space in the vertical direction. Similarly, the grounding frame portion 123 is bent toward the Y direction and extends along the Y direction, which can ensure that the grounding frame portion 123 has a proper deformation space in the Y direction, thereby ensuring that the grounding pin 121 is connected to other components. When the grounding plate 12 is not easily deformed, the structural stability of the grounding plate 12 is ensured.

It can be understood that the extension trend of the grounding plate 12 is substantially the same as that of the wire-end signal terminal pair 11 , thereby ensuring that the grounding plate 12 has a better shielding effect on the wire-end signal terminal pair 11 . The wiring contacts 113 of the above-mentioned wire-end signal terminals 11 are used to connect the cables 30 , wherein the grounding frame portion 123 can surround the connection between the wiring contacts 113 and the cables 30 .

Continuing to refer to FIG. 2 , the grounding motherboard 122 also has a front edge and a rear edge that are perpendicular to the top edge, and a plug portion 124 is formed on the front edge and the rear edge. It extends substantially perpendicular to the plane of the grounded main board 122 and is located outside the shield. The wire end terminal module 100 further includes a long insulating support frame 13 for supporting the wire end signal terminal pair 11 and the ground plate 12 , and the insulating support frame 13 is provided with the plug-in portion. 124 is connected to the positioning portion 131, so that the fixed connection between the grounding plate 12 and the insulating support frame 13 can be ensured through the cooperation of the plug-in portion 124 and the positioning portion 131, and the connection is simple and convenient.

Exemplarily, the above-mentioned plug-in portion 124 is a folded piece protruding toward the insulating support frame 13 , the positioning portion 131 is an insertion hole provided on the insulating support frame 13 , and the above-mentioned folded piece extends into the insertion hole to realize the assembly and connection of the two. At the same time, it can also form a shield on both sides of the pair of wire-end signal terminals 11 matched with the ground plate 12 (ie, the base 112 of the pair of wire-end signal terminals 11 ), so that the signal of the pair of wire-end signal terminals 11 can be shielded at the same time. A complete shielding effect is formed on the path.

Based on the above embodiment, it can be understood that the shielding inner surface of the grounding motherboard 122 is a side wall close to the insulating support frame 13 (or the wire end signal terminal pair 11 ), and the shielding outer surface is facing away from the insulating support A side wall of the frame 13 (or the pair of wire-end signal terminals 11 ).

Continuing to refer to FIGS. 1 to 3 , there are a plurality of the wire end signal terminal pairs 11 and the grounding plate 12 , and are arranged at intervals along the length direction of the insulating support frame 13 , and are held on the insulating support frame 13 . Inside. The board-side terminal module 200 further includes a substantially elongated insulating support 23 , the board-side signal terminal pair 21 and the grounding terminal 22 both have a plurality of them and are arranged at intervals along the length direction of the insulating support 23 . , and maintained in the insulating support 23 to form an integrated structure. More specifically, the above-mentioned wire-end signal terminal pair 11 and the insulating support frame 13 have an integrated structure, and the board-end terminal module 200 has an integrated structure, which is beneficial to realize the modular structure of the structure and facilitate subsequent installation and handling.

2 shows two sets of wire end terminal modules 100 , and each wire end terminal module 100 includes four independently arranged grounding plates 12 . It should be noted that, in each wire end terminal module 100 described above, The four independently arranged ground plates 12 can also be connected to each other in an integrated structure. Of course, two adjacently arranged grounding plates 12 among the four independently arranged grounding plates 12 can also be made into an integrated structure.

More specifically, each group of line end terminal modules 100 described above may be an integral structure as shown in FIG. 2 , or may be a split structure. When the line end terminal modules 100 are of a split structure, each group of line end terminal modules 100 Including four independently arranged grounding plates 12, the insulating support frame 13 has two (that is, the insulating support frame 13 shown in FIG. 2 is disconnected from the middle), and two grounding plates 12 are respectively fixed on each insulating support 13 . Similarly, the board terminal module 200 may be an integral structure as shown in FIG. 3 , or may be a split structure, which is not specifically limited in this application.

Referring to FIGS. 1 and 5 , the wire end connector 10 includes an insulating housing 14 and two sets of the wire end terminal modules 100 installed in the insulating housing 14 . The insulating housing 14 is generally convex in shape, and has an accommodating hole 141 whose opening faces the board end connector 20 . Inner wall 1411 and second inner wall 1412. One of the two sets of the wire terminal modules 100 is disposed on the first inner wall 1411 , and the other is disposed on the second inner wall 1412 . Therefore, the internal structure of the insulating housing 14 can be ensured to be relatively compact, that is, on the basis of not increasing the length of the insulating housing 14 , the insulating housing 14 can accommodate a greater number of wire-end signal terminal pairs 11 and terminals. Floor 12.

Similarly, referring to FIGS. 1 and 6 , the board-end connector 20 includes an insulating base 24 and two groups of the board-end terminal modules 200 installed in the insulating base 24 . The insulating base 24 has a substantially box-like structure with an opening facing the wire end connector 10 . The box-like structure is provided with a bump structure 241 extending toward the wire end connector 10 . The structure 241 has a first installation side wall 2411 and a second installation side wall 2412 arranged oppositely. After the wire end connector 10 and the board end connector 20 are mated, the first installation side wall 2411 faces all the The first inner wall 1411 and the second installation side wall 2412 face the second inner wall 1412 . One of the two groups of the board terminal modules 200 is arranged on the first installation side wall 2411 and the other is arranged on the second installation side wall 2412, so as to realize the docking with the wire end connector 10 .

1 , 5 and 6 , the insulating housing 14 has a first insulating portion 142 and a second insulating portion 143 arranged in sequence along the docking direction Z, and the insulating base 24 is sleeved on the On the outer periphery of the first insulating portion 142 , the outer side wall of the first insulating portion 142 is at least partially reverse-tapered to form a guide surface 1421 , and the inner wall surface of the insulating base 24 is formed with a guide surface 1421 . Mating tapered surface 242 . Therefore, through the cooperation of the guide surface 1421 and the tapered surface 242, the insertion accuracy between the insulating housing 14 in the wire end connector 10 and the insulating base 24 in the board end connector 20 can be ensured, and the above-mentioned wire to board can be guaranteed. The assembly efficiency and assembly yield of the connector are both high. At the same time, the stability and reliability of the connection between the wire end connector 10 and the board end connector 20 can also be ensured.

Referring to FIG. 1 , FIG. 3 and FIG. 6 , the board-side signal terminal pair 21 has a tail contact 212 which is reversely extended and bent along the head contact 211 , and the ground terminal 22 also has a The ground tail portion 222 of the head 221 is reversely extended and bent, and the tail contact 212 and the ground tail portion 222 are at least partially exposed to the mounting surface of the insulating base 24 facing away from the wire end connector 10 (ie, The upper surface of the insulating base 24 in FIG. 1 ) is used for electrical connection with the circuit board 40 . The insulating base 24 has a first side wall 243 facing the first mounting side wall 2411 and a second side wall 244 facing the second mounting side wall 2412. The first side wall The portion of the second side wall 243 and/or the second side wall 244 close to the circuit board 40 is an inclined surface 245 , and an angle is formed between the inclined surface 245 and the circuit board 40 . More specifically, the above-mentioned inclined surface 245 extends downward toward the outside of the insulating base 24 , and the above-mentioned board-end connector 20 is surface-mounted to the circuit board 40 . Observing the connection quality between the board end connector 20 and the circuit board 40 in the length direction (X direction in FIG. 1 ), so that products with poor connection quality can be found in time, and the assembly of the above-mentioned wire-to-board connectors can be effectively improved reliability and reliability of use.

More specifically, referring to FIG. 3 , the board-side signal terminal pair 21 in the above-mentioned board-side terminal module 200 further has a body portion 213 connecting the head contact 211 and the tail contact 212 , and the above-mentioned grounding in the board-side terminal module 200 The terminal 22 also has a base portion 223 connecting the ground head portion 221 and the ground tail portion 222 .

Wherein, for the above-mentioned embodiment in which the board-side terminal module 200 has two groups, each board-side terminal module 200 includes an insulating bracket 23 , a plurality of board-side signal terminal pairs 21 supported and fixed by the insulating bracket 23 and a plurality of grounding Terminal 22. Wherein, the tail contact 212 and the ground tail 222 in one board terminal module 200 are bent toward the Y direction, and the tail contact 212 and the ground tail 222 in the other board terminal module 200 are bent in the opposite direction of the Y direction, That is, the tail contacts 212 and the ground tails 222 of the two groups of board terminal modules 200 are respectively bent and extended in directions away from each other.

1 and 7 , the board end connector 20 further includes an L-shaped connecting plate 25 , the insulating base 24 is provided with a connecting portion 247 , and the L-shaped connecting plate 25 has mutually perpendicular first plate portions 251 and a second board portion 252 , the first board portion 251 is connected to the connecting portion 247 , and the second board portion 252 is connected to the circuit board 40 . Therefore, the holding force of the board-end connector 20 and the circuit board 40 after surface-mount connection can be increased through the L-shaped connecting plate 25 .

For example, since the above-mentioned wire-to-board connector has a substantially rectangular structure, the insulating base 24 also has a substantially rectangular structure, and its dimension in the length direction (ie, the X direction in FIG. 1 ) is larger than that in the width direction (ie, the X direction in FIG. 1 ). The dimension on the Y direction), thus in order to better ensure the retention force after the surface-mount connection of the board-end connector 20 and the circuit board 40, the above-mentioned insulating base 24 has two vertical side walls parallel to the width direction, A connecting portion 247 is provided on both vertical side walls, and correspondingly, the above-mentioned L-shaped connecting plate 25 is also provided with two.

Referring to FIGS. 2 and 5 , in order to control the positive position of the paired contacts 111 in the line-end signal terminal pair 11 and the ground pins 121 in the ground plate 12 , the deflection is prevented. The first inner wall 1411 and the second inner wall 1412 of the present application are provided with a plurality of positioning through grooves 1413 extending along the docking direction Z at intervals, a plurality of the pair of contact heads 111 and a plurality of the ground pins 121 They are respectively arranged in the corresponding positioning through grooves 1413 . Therefore, the alignment of the contact head 111 and the ground pin 121 can be ensured through the positioning through groove 1413, thereby ensuring reliable butt joint.

Similarly, referring to FIG. 3 and FIG. 6 , a plurality of terminal through grooves 246 extending along the docking direction Z are provided at intervals on the first mounting side wall 2411 and the second mounting side wall 2412 . The board-side signal terminal pair 21 (ie, the header contacts 211 and the body portion 213 of the board-side signal terminal pair 21 ) and a plurality of the ground terminals 22 (ie, the ground head 221 and the base portion of the ground terminals 22 ) 223) are respectively arranged in the corresponding terminal through grooves 246.

It can be understood that, in the present application, by setting the positioning through grooves 1413, the alignment of the contact head 111 in the signal terminal pair 11 and the grounding pin 121 in the grounding plate 12 can be ensured, and the terminal through grooves 246 can ensure the correct position. The correctness of the head contact 211 and the body part 213 of the board-side signal terminal pair 21 and the grounding head 221 and the base part 223 of the ground terminal 22 makes the placement position of the above parts more accurate and reliable. This can ensure the plugging reliability of the wire end connector 10 and the board end connector 20 .

2 , 5 and 8 , the second insulating portion 143 of the present application has a horizontal surface 1431 facing the first insulating portion 142 and a stepped surface 1432 facing away from the first insulating portion 142 . The stepped surface 1432 The distance from the horizontal plane 1431 decreases sequentially from the first inner wall 1411 to the second inner wall 1412 , thereby ensuring that the cables 30 are staggered in the docking direction Z, and that all cables 30 The outgoing direction of the wire-to-board connector is consistent, making the outgoing wires of the wire-to-board connector neat and beautiful.

More specifically, the distance between the step surface 1432 and the horizontal surface 1431 decreases sequentially from the first inner wall 1411 to the second inner wall 1412 , and specifically includes a first step area, a second step area, and a second step area. area, the third step area and the fourth step area. For the above-mentioned embodiment in which the wire end connector 10 includes two sets of wire end terminal modules 100 , the thickness of the grounding frame portion 13 in the grounding plate 12 of the two sets of wire end terminal modules 100 is the thickest toward the second insulating portion 143 . The thin side is bent and extended, and an escape hole is formed on the first step area for the grounding frame portion 123 of the grounding plate 12 in one of the two sets of wire terminal modules 100 , and The wiring contacts 113 in the wire-end signal terminal pair 11 are exposed to the outside of the second insulating portion 143 , and another escape hole is formed on the third step area for the other wire-ends in the two sets of wire-end terminal modules 100 The grounding frame portion 123 of the grounding plate 12 in the terminal module 100 and the wiring contacts 113 in the wire end signal terminal pair 11 are exposed to the outside of the second insulating portion 143 .

For example, in order to realize the pre-positioning of the wire terminal module 100 and the insulating housing 16, the grounding frame portion 123 of the grounding plate 12 in the wire terminal module 100 has a direction in the extending direction that is directed away from the grounding main board 122 in sequence. A first horizontal section extending in the direction of , a vertical section extending toward the board end connector 20 , and a second horizontal section extending in a direction away from the grounding motherboard 122 . More specifically, the above-mentioned grounding main board 122 , the first horizontal section and the vertical section form a U-shaped slot. Therefore, when the above-mentioned wire terminal module 100 is assembled to the insulating housing 14 , the above-mentioned U-shaped card slot is clamped to the connection between the first step area and the second step area.

It can be understood that, in order to meet the installation requirements, the above two sets of wire terminal modules 100 need to be adaptively adjusted according to the dimensions of the stepped surface 1432 and the horizontal surface 1431 in the docking direction. Illustratively, the height of one of the above-mentioned two sets of line-end terminal modules 100 (ie, the line-end signal terminal pair 11 and the ground plate 12 in one line-end terminal module 100 ) is lower than that of the other line-end terminal module 100 (ie, the height of the line-end signal terminal pair 11 and the ground plate 12 in the other line-end terminal module 100 ).

In addition, in order to facilitate plugging with the board-side connector 20 and prevent the board-side connector 20 from crushing the free end of the ground pin 121 (ie, the top of the ground pin 121 in FIG. 2 ) when the board-side connector 20 is connected, the two The free ends of the ground pins 121 in the terminal module 100 are outwardly flared. More specifically, the free ends of the ground pins 121 extend in directions away from each other.

8 and 9, the wire end connector 10 further includes a metal shell 15 disposed on the periphery of the insulating housing 14, and a bottom plate 16 disposed on the side of the stepped surface 1432 facing away from the horizontal plane 1431, Coupling protrusions 151 are provided on the outer sides of the two side walls of the metal shell 15 in the longitudinal direction. The coupling protrusions 151 can increase the bonding force between the metal shell 15 and the bottom plate 16 . In the specific production, after the wire end connector 10 is assembled, then the insulating shell 14 in the wire end connector 10 is placed on the metal shell 15, and then the bottom plate 16 is formed by low-pressure injection molding. At this time, the metal shell The multiple bonding protrusions 151 on the outer side of the 15 can increase the bonding force between the bottom plate 16 and the metal shell 15 when the bottom plate 16 is low-pressure injection molded, so as to ensure a stable and reliable connection between the two.

Wherein, there are a plurality of the above-mentioned combining protrusions 151, and the present application does not specifically limit the size of the combining protrusions 151, the structure and the number of the combining protrusions 151.

Exemplarily, the above-mentioned coupling protrusions 151 in the present application are provided with two rows in the docking direction Z, and the two rows of coupling protrusions 115 are respectively arranged along the length direction and arranged in a staggered position. More specifically, any one of the coupling protrusions 151 in one row of the two rows of coupling protrusions is located between two adjacent coupling protrusions 151 in the other row of the coupling protrusions.

Continuing to refer to FIG. 8 , the metal casing 15 is provided with a mounting step hole 152 , and the large hole of the mounting step hole 152 is used to accommodate the second insulating portion 143 , and its outer contour matches the outer contour of the second insulating portion 143 . The small hole of the mounting step hole 152 is used for accommodating the first insulating portion 142, and its outer contour matches the outer contour of the first insulating portion 142, so as to facilitate the pre-positioning therebetween.

Referring to FIGS. 1 and 10 , the wire end connector 10 further includes a fixing frame 17 . The fixing frame 17 is disposed on the periphery of the metal shell 15 and there is a gap S between it and the outer circumferential side of the metal shell 15 . This enables the components mounted on the metal shell 15 to be finely adjusted relative to the fixing frame 17 in the X direction and the Y direction together with the metal shell 15, thereby reducing the installation accuracy requirements of the wire end connector 10 and the board end connector 20. It is beneficial to improve product yield and connection reliability.

During specific production, the above-mentioned gap S can be adaptively adjusted according to the tolerance capability of the wire-to-board connector. In some embodiments, the above-mentioned gap S in the present application is 0.3 mm˜0.7 mm. Preferably, the above-mentioned gap S is 0.5 mm.

Based on the above-mentioned embodiment, the above-mentioned wire-to-board connector further includes a limiting structure 18 , and the limiting structure 18 is used to limit the relative positions of the metal shell 15 and the fixing frame 17 in the docking direction Z. Wherein, the limiting structure 18 includes screws 181, washers 182 and threaded holes 183 provided along the docking direction Z, the threaded holes 183 are provided on the metal shell 15 or the fixing frame 17, the A part of the gasket 182 is covered with the metal shell 15 , and the other part is covered with the fixed frame 17 . Therefore, the adjustment distance of the metal casing 15 relative to the fixing frame 17 in the docking direction Z can be controlled by controlling the depth of the screw 181 screwed into the threaded hole 183 , that is, the gasket 182 is not completely pressed on the metal shell 15 and the fixed frame 17 . It should be noted that the above-mentioned gasket 182 may be a spring washer and/or a flat washer.

Referring to FIGS. 8 and 10 , an arc-shaped groove 153 is provided on both side walls of the metal casing 15 parallel to the width direction (ie, the Y direction in FIG. 1 ). Correspondingly, the fixing frame 17 is provided with a The arc-shaped groove 153 corresponds to the arc-shaped protrusion 172 , so that the gasket 182 can cover the metal casing 15 and the fixing frame 17 at the same time. It can be understood that, in order to facilitate the passage of the cable 30 from the fixing frame 17 , a wire opening 171 is further provided on one side wall of the fixing frame 17 .

In the description of this specification, the particular features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims. In addition, specific examples are used in the description to illustrate the principles and implementations of the present application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application, and the contents of this description should not be construed as limitations on the present application. .

Claims (14)

1. Wire-to-board connector comprising a wire end connector (10) and a board end connector (20) butted against the wire end connector (10) along a butting direction Z, characterized by further comprising:

a wire end terminal module (100) disposed within the wire end connector (10) and comprising a wire end signal terminal pair (11) and a ground plate (12), the wire end signal terminal pair (11) having a mating contact (111) extending towards the board end connector (20), the ground plate (12) having a ground pin (121) extending towards the board end connector (20);

a board end terminal module (200) disposed within the board end connector (20) and including a pair of board end signal terminals (21) and a ground terminal (22), the pair of board end signal terminals (21) having a head contact (211) extending toward the line end connector (10), the ground terminal (22) having a ground head (221) extending toward the line end connector (10);

when the line end connector (10) and the plate end connector (20) are matched, the butt contact (111) and the head contact (211) are contacted to form a signal butt joint position, the grounding pin (121) and the grounding head (221) are contacted to form a grounding butt joint position, and the signal butt joint position and the grounding butt joint position are staggered in the butt joint direction Z.

2. The wire-to-board connector according to claim 1, wherein the ground pin (121) and the header contact (211) each have a flat plate shape, the mating contact (111) is formed with a mating contact projecting toward the header contact (211), the ground header (221) is formed with a ground contact projecting toward the ground pin (121), and the mating contact and the ground contact are offset in the mating direction Z.

3. The wire-to-board connector according to claim 2, wherein the ground plate (12) includes a ground main plate (122), the ground main plate (122) having a top edge and a bottom edge in sequence in the mating direction Z, the top edge having a plurality of ground pins (121) formed thereon at intervals, the bottom edge having a ground enclosure portion (123) formed thereon;

the pair of wire end signal terminals (11) has a base portion (112) and a wire contact (113) connected to the mating contact (111) and formed in this order in the mating direction Z, and the ground surrounding frame portion (123) surrounds the wire contact (113).

4. The wire-to-board connector according to claim 3, wherein the ground main board (122) has a shield inner surface and a shield outer surface which are parallel to the mating direction Z and are disposed opposite to each other, the ground pin (121) is located on the shield outer surface, the ground frame portion (123) is located on the shield inner surface, the ground pin (121) extends in a plane substantially parallel to the ground main board (122), the ground frame portion (123) extends in a plane substantially perpendicular to the ground main board (122), and the extension directions of the wire contact (113) and the ground frame portion (123) are the same.

5. The wire-to-board connector according to claim 4, wherein the ground main board (122) further has a front edge and a rear edge perpendicular to the top edge, the front edge and the rear edge each having a mating portion (124) formed thereon, the mating portions (124) extending in a plane substantially perpendicular to the ground main board (122) and being located outside the shield;

the line terminal module (100) further comprises a strip-shaped insulating support frame (13) used for supporting the line terminal signal terminal pair (11) and the grounding plate (12), and a positioning part (131) connected with the plugging part is arranged on the insulating support frame (13).

6. The wire-to-board connector according to claim 5,

the line end signal terminal pair (11) and the grounding plate (12) are provided with a plurality of lines, are arranged at intervals along the length direction of the insulating support frame (13) and are retained in the insulating support frame (13);

the board end terminal module (200) further comprises an insulating support (23) which is approximately in a long strip shape, the board end signal terminal pair (21) and the grounding terminal (22) are provided with a plurality of insulating supports (23) at intervals along the length direction of the insulating supports, and the insulating supports (23) are kept to form an integrated structure.

7. The wire-to-board connector according to any one of claims 1 to 6,

the wire end connector (10) comprises an insulating shell (14) and two groups of wire end terminal modules (100) installed in the insulating shell (14), wherein the insulating shell (14) is approximately in a convex shape and is provided with a containing hole (141) with an opening facing the board end connector (20), the containing hole (141) is provided with a first inner wall (1411) and a second inner wall (1412) which are vertical in the length direction and are arranged in a facing mode, one of the two groups of wire end terminal modules (100) is arranged on the first inner wall (1411), and the other of the two groups of wire end terminal modules (100) is arranged on the second inner wall (1412);

the board end connector (20) comprises an insulating base (24) and two sets of the board end terminal modules (200) mounted in the insulating base (24), the insulating base (24) is of a box-shaped structure and is opened towards the terminal connector (10), a lug structure (241) extending towards the wire end connector (10) is arranged in the box-shaped structure, the bump structure (241) is provided with a first installation side wall (2411) and a second installation side wall (2412) which are oppositely arranged, when the wire end connector (10) and the plate end connector (20) are matched, the first mounting side wall (2411) faces the first inner wall (1411), the second mounting side wall (2412) faces the second inner wall (1412), and one of the two sets of board end terminal modules (200) is provided on the first mounting side wall (2411) and the other is provided on the second mounting side wall (2412).

8. The wire-to-board connector according to claim 7, wherein the insulating housing (14) has a first insulating portion (142) and a second insulating portion (143) sequentially arranged along the mating direction Z, the insulating base (24) is fitted around an outer periphery of the first insulating portion (142), an outer side wall of the first insulating portion (142) is at least partially reverse tapered to form a guide surface (1421), and a tapered surface (242) is formed on an inner wall surface of the insulating base (24) to be fitted with the guide surface (1421).

9. The wire-to-board connector according to claim 7, wherein the board-end signal terminal pair (21) has tail contacts (212) disposed opposite the header contacts (211), the ground terminal (22) further has ground tails (222) disposed opposite the ground header (221), the tail contacts (212) and the ground tails (222) being at least partially exposed to a mounting surface of the insulative base (24) facing away from the wire-end connector (10) and for electrical connection with a circuit board (40); wherein,

the insulation base (24) is provided with a first side wall (243) facing the first installation side wall (2411) and a second side wall (244) facing the second installation side wall (2412), the part, close to the circuit board (40), of the first side wall (243) and/or the second side wall (244) is an inclined surface (245), and an included angle is formed between the inclined surface (245) and the circuit board (40).

10. The wire-to-board connector according to claim 9, wherein the board-end connector (20) further comprises an L-shaped connecting plate (25), the insulating base (24) is provided with a connecting portion (247), the L-shaped connecting plate (25) has a first plate portion (251) and a second plate portion (252) perpendicular to each other, the first plate portion (251) is connected to the connecting portion (247), and the second plate portion (252) is connected to the circuit board (40).

11. The wire-to-board connector according to claim 7, wherein the first inner wall (1411) and the second inner wall (1412) are provided with a plurality of positioning through slots (1413) at intervals extending along the mating direction Z, and a plurality of the mating contacts (111) and a plurality of the ground pins (121) are respectively provided in the positioning through slots (1413) corresponding thereto;

a plurality of terminal through grooves (246) extending along the butt joint direction Z are formed in the first mounting side wall (2411) and the second mounting side wall (2412) at intervals, and a plurality of plate-end signal terminal pairs (21) and a plurality of ground terminals (22) are respectively arranged in the terminal through grooves (246) corresponding to the plate-end signal terminal pairs.

12. The wire-to-board connector according to claim 8, wherein the second insulating portion (143) has a horizontal surface (1431) facing the first insulating portion (142) and a stepped surface (1432) facing away from the first insulating portion (142), a distance between the stepped surface (1432) and the horizontal surface (1431) decreasing in order from the first inner wall (1411) to the second inner wall (1412).

13. The wire-to-board connector according to claim 12, wherein the wire-end connector (10) further comprises a metal shell (15) disposed at the periphery of the insulating housing (14), and a bottom plate (16) disposed at a side of the stepped surface (1432) facing away from the horizontal surface (1431), the metal shell (15) is provided with a coupling protrusion (151) at outer sides of both side walls in the length direction, and the coupling protrusion (151) is capable of increasing a coupling force between the metal shell (15) and the bottom plate (16).

14. The wire-to-board connector according to claim 13, further comprising:

a fixed frame (17) which is provided on the outer periphery of the metal case (15) and has a gap S with the outer periphery of the metal case (15);

the limiting structure (18) is used for limiting the relative position of the metal shell (15) and the fixing frame (17) in the butt joint direction Z, the limiting structure (18) comprises a screw (181), a gasket (182) and a threaded hole (183) arranged along the butt joint direction Z, the threaded hole (183) is arranged on the metal shell (15) or the fixing frame (17), and one part of the gasket (182) covers the metal shell (15) and the other part covers the fixing frame (17).

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