CN201072831Y - Board-to-Board Connector - Google Patents

Abstract

The utility model discloses a board to board connector with ground connection component contains socket and plug. The socket is provided with a socket body, a plurality of first terminals are accommodated in the socket body, first grounding pieces are respectively arranged on two corresponding outer side edges of the socket body and correspond to the plurality of first terminals, and second grounding pieces which are contacted with one side of the first grounding pieces are respectively arranged on the other two opposite side edges of the socket body. The plug comprises a plug body, a plurality of second terminals are accommodated in the plug body, and third grounding pieces which are in contact with the first grounding pieces are arranged at two opposite ends of the plug body respectively. When the socket and the plug are mutually inserted and butted, the first grounding sheet, the second grounding sheet and the third grounding sheet are in contact conduction to form a grounding loop, so that the grounding circuits of the male printed circuit board and the female printed circuit board are electrically conducted, and a good electromagnetic shielding effect is formed.

Description

Board-to-Board Connector

Technical field

The utility model relates to a board-to-board connector, in particular to a board-to-board connector with a grounding component.

Background technique

Usually, a board-to-board connector is installed inside an electronic device for signal transmission between two printed circuit boards parallel to each other. Most of the existing board-to-board connectors are used to transmit low-frequency and low-speed signals. However, with the increasing functions of electronic devices, board-to-board connectors need to transmit some high-frequency and high-speed signals, so electromagnetic interference is inevitable. produce.

Please refer to FIG. 10, which is an exploded perspective view of a conventional board-to-board connector 100', the board-to-board connector 100' includes a receptacle 1' and a plug 3', the receptacle 1' and the plug 3' respectively Installed on the female printed circuit board and the male printed circuit board (not shown in the figure), and connected with the circuit on the corresponding printed circuit board, and then through the cooperation between the socket 1' and the plug 3', the two printed circuit boards are connected Realize signal transmission.

However, the above-mentioned board-to-board connector 100', whether it is the socket 1' or the plug 3', is not designed with a grounding member, so when the board-to-board connector 100' transmits high-frequency and high-speed signals, it is easy to generate electromagnetic waves. Interference, thereby affecting the signal transmission between the two printed circuit boards.

Utility model content

The purpose of the utility model is to provide a board-to-board connector with a grounding member, so as to form a good electromagnetic shielding effect.

To achieve the above purpose, the utility model provides a board-to-board connector with a grounding member electrically connected to two external male and female printed circuit boards, including a socket and a plug. The socket has a socket body, which contains a plurality of first terminals. The socket body defines two relatively long sides and two adjacent relatively short sides, wherein the outer sides of the two relatively long sides of the socket body correspond to a plurality of first terminals The two ends of the first grounding piece are respectively extended with connecting parts and elastic parts, and the two opposite short sides of the socket body are respectively inserted with the second grounding piece, the second grounding piece It has a contact portion which is in contact with one side of the elastic portion and a welding portion which is welded with the mother printed circuit board. The plug has a plug body, which accommodates a plurality of second terminals, and a third ground piece is provided at opposite ends of the plug body, and the third ground piece also has a contact portion that contacts with the other side of the elastic portion and a male printed circuit. The welding part of the plate phase welding.

To sum up, in the utility model, when the socket and the plug are plugged and docked with each other, a ground loop is formed through the contact conduction between the first, second and third ground plates, so that the male and female printed circuit boards The grounding circuit is electrically conductive, thereby forming a good electromagnetic shielding effect.

Description of drawings

In the accompanying drawings of the manual:

Fig. 1 is a perspective view of a socket of a board-to-board connector of the present invention;

Fig. 2 is a perspective view of another angle of the socket of the board-to-board connector of the present invention;

Fig. 3 is a three-dimensional exploded view of the socket of the board-to-board connector of the present invention;

Fig. 4 is a perspective view of the plug of the board-to-board connector of the present invention;

Fig. 5 is a perspective view of another angle of the plug of the board-to-board connector of the present invention;

Fig. 6 is a three-dimensional exploded view of the plug of the board-to-board connector of the present invention;

Fig. 7 is a three-dimensional combination diagram of the board-to-board connector of the present invention after the socket and the plug are docked and assembled;

Fig. 8 is a partially enlarged view of part VIII of the socket shown in Fig. 7;

Fig. 9 is a cross-sectional view of the board-to-board connector of the present invention after the socket and the plug are docked and assembled;

FIG. 10 is a perspective view of a conventional board-to-board connector before the socket and plug are mated.

The reference numerals of each element in the utility model are as follows:

Board-to-Board Connector 100, 100’ Socket 1, 1’

Plug 2, 3’ Socket body 10

Fitting groove 101 first terminal 20

Socket substrate 11 Embedded hole 110

Left and right side panels 111 Front and rear side panels 112

Support block 113 nesting part 13

Containment Space 14 First Terminal Slot 15

Mounting hole 16 Storage hole 17

The first ground piece 30 The strip body 301

Connecting part 302 Elastic part 303

Second ground piece 40 Transverse board 401

Welding part 402 Inserting strip 403

Insert piece 404 Contact part 405

Plug body 50 Plug substrate 51

Insertion Space 52 Lug 53

Button Hole 54 Fastening Slot 55

Terminal storage channel 56 Second terminal 60

The third ground piece 70 Fastening plate 71

Welding foot 72 Interference part 73

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1, Fig. 4 and Fig. 7, the board-to-board connector 100 of the present invention comprises a socket 1 and a plug 2, and the socket 1 and the plug 2 are respectively surface-mounted on a female printed circuit board and a male printed circuit board which both have a grounding circuit. The circuit board (not shown in the figure) is connected with the circuit on the printed circuit board, and then through the cooperation between the socket 1 and the plug 2, signal transmission is realized between the male and female printed circuit boards.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the socket 1 has a socket body 10 and two rows of first terminals 20 arranged in parallel and accommodated in the socket body 10 . The socket body 10 is roughly rectangular and has a flat socket base plate 11, with one side plate 111, 112 protruding vertically upwards on each of the four sides, wherein the two side plates in the horizontal direction are defined as the left and right side plates 111, and the vertical The two side panels in the longitudinal direction are defined as front and rear side panels 112 . A nesting part 13 protrudes upward from the middle part of the socket base plate 11, and a receiving space 14 is formed between the side plates 111, 112 and the nesting part 13. The top surface of the nesting part 13 and the top surface of the side plates 111, 112 flush. A plurality of first terminal slots 15 are equally spaced on both sides of the socket substrate 11 to respectively accommodate corresponding first terminals 20 and communicate with the receiving space 14 . A plurality of mounting holes 16 vertically penetrating through the nesting portion 13 are defined in the nesting portion 13 opposite to the first terminal slots 15 , and communicate with the receiving space 14 and the corresponding first terminal slots 15 . The side plates 111 , 112 define a plurality of receiving holes 17 vertically penetrating through the side plates 111 , 112 opposite to the first terminal slots 15 , and the receiving holes 17 communicate with the corresponding first terminal slots 15 .

The utility model has L-shaped support blocks 113 at the four corners of the socket body 10 respectively. Fitting grooves 101 are just formed between the support block 113 and the side plates 111, 112, wherein the outer sides of the front and rear side plates 112 of the socket body 10 and corresponding to the corresponding first terminals 20 are respectively installed with longitudinal strips. Shaped first ground piece 30. The first ground piece 30 includes a strip body 301, and the two ends of the strip body 301 are respectively bent vertically to one side and then vertically bent outwards and parallel to the connection portion 302 extending from the strip body 301, the connection portion The top end of 302 is bent downward to form an elastic portion 303 . When the first ground piece 30 is installed on the outer sides of the front and rear side plates 112 of the socket body 10, the connecting portion 302 of the first ground piece 30 is inserted into the fitting groove 101, and the elastic portion 303 protrudes from the receiving space. within 14.

On the outside of the left and right side plates 111 of the socket body 10, a second grounding piece 40 is respectively inserted. The second grounding piece 40 has a transverse plate body 401. Section 402. A plurality of slots are formed on the transverse plate body 401 on both sides of the adjacent welding portion 402 , so that an insertion strip 403 is formed between the two slots. The socket substrate 11 of the socket body 10 is provided with a matching insertion hole 110 corresponding to the insertion strip 403 (as shown in FIG. 2 ). In addition, an inserting piece 404 is vertically bent in the same direction at two free ends of the transverse plate body 401 , and a contact portion 405 that contacts the elastic portion 303 is provided on the inner side of the two inserting pieces 404 .

Please continue to refer to Figure 1, Figure 2 and Figure 3, when the socket 1 is assembled, the first terminal 20 is accommodated in the corresponding first terminal groove 15 of the socket body 10, the first grounding piece 30 and the second grounding piece 40 They are respectively inserted into the periphery of the socket body 10 . Wherein, the elongated board bodies 401 of the two first ground plates 30 are located on the outer sides of the front and rear side plates 112 respectively, so as to cover the first terminals 20, and the connecting portion 302 of the first ground plate 30 is connected to the second ground plate. 40 are respectively embedded in the fitting grooves 101 formed between the supporting block 113 and the side plates 111, 112, so that the contact portion 405 on the inserting piece 404 of the second grounding piece 30 is just in contact with the connecting portion 302. On the back side, the elastic portion 303 of the first ground piece 30 is exposed in the receiving space 14 .

Referring to Fig. 4, Fig. 5 and Fig. 6, the plug 2 includes a plug body 50, two rows of parallel rows of second terminals 60 housed in the plug body 50, and a pair of terminals fixed on the left and right ends of the plug body 40. The third ground piece 70 .

Please continue to refer to FIG. 6 , the plug body 50 is roughly rectangular, and has a plug substrate 51. An insertion space 52 is formed on the plug substrate 51 for docking and insertion of the nesting portion 13 of the socket body 10. The four corners of the plug substrate 51 are respectively A lug 53 protrudes upwards. The lug 53 is roughly rectangular. The top surface of the lug 53 is provided with a button hole 54 that penetrates the lug 53 up and down. The buckle hole 54 communicates with the longitudinal buckle groove 55 . A plurality of terminal accommodating passages 56 arranged at equal intervals are opened on opposite sides of the front and rear of the plug substrate 51 .

The third ground piece 70 includes a snap-fit plate 71 , which is square and inserted into the snap-fit slots 55 of the lugs 53 at the four corners of the plug body 50 . The top of the fastening plate 71 is bent horizontally to one side at a right angle to protrude a rectangular welding leg 72 , while the bottom of the fastening plate 71 is in the same direction as the welding leg 72 but bends upward a U-shaped conflicting portion 73 . The contact portion 73 protrudes slightly outside the plug body 50 to contact and conduct with the elastic portion 303 of the first ground piece 30 of the socket 1 .

Please refer to FIG. 4 , FIG. 5 and FIG. 6 . When the plug 2 is assembled together, the second terminal 60 is received in the corresponding terminal receiving channel 56 of the plug body 50 . The third ground piece 70 is respectively embedded in the lugs 53 at the four corners of the plug body 50, wherein the buckle plate 71 of the third ground piece 70 is inserted into the buckle groove 55 of the lug 43 to achieve a firm connection, and welding The feet 72 and the conflicting portion 73 are respectively located in the button holes 54 .

Please refer to FIG. 7 , when the plug 2 and the socket 1 are assembled, the nesting portion 13 of the socket 1 is inserted into the insertion space 52 of the plug 2, so that the nesting portion 13 of the socket 1 is accommodated in the insertion space of the plug 2 52, so that the socket 1 and the plug 2 are firmly combined, and at the same time, the corresponding first terminal 20 and the second terminal 60 realize stable contact with each other.

Referring to FIG. 8 and FIG. 9 , when the plug 2 is inserted into the socket 1 , the elastic portion 303 of the first ground piece 30 on the socket 1 elastically abuts against the contact portion 73 of the third ground piece 70 . Therefore, the contact portion 405 on the insertion piece 404 of the second ground piece 40 is in contact with the back surface of the connection portion 302 of the first ground piece 30 , and the contact portion 73 of the third ground piece 70 is in contact with the first ground piece 30 again. The elastic portion 303 elastically abuts against each other, thereby forming a conductive ground loop path.

When in use, the socket 1 and the plug 2 are respectively surface-mounted on the corresponding female printed circuit board and the male printed circuit board, wherein the first terminal 20 of the socket 1 and the second terminal 60 of the plug 2 are respectively electrically connected to the female printed circuit plate and the male printed circuit board to realize signal transmission, the welding portion 402 of the second grounding piece 40 is welded on the mother printed circuit board and connected with the grounding circuit of the mother printed circuit board, and the welding pin 72 of the third grounding piece 70 is then welded on The male printed circuit board is connected to the grounding circuit of the male printed circuit board, so that the grounding circuits of the male and female printed circuit boards are electrically connected.

To sum up, when the board-to-board connector 100 with the grounding member of the present invention needs to transmit high-frequency and high-speed signals, it can introduce the generated electromagnetic interference into the male and female printed circuit boards, thereby forming a good electromagnetic shielding The effect is to ensure stable signal transmission between the male and female printed circuit boards.

Claims (7)

1. A board-to-board connector electrically connected to two external male and female printed circuit boards, the board-to-board connector comprising: The socket is installed on the female printed circuit board and has a socket body. The socket body has a flat socket substrate. The four sides of the socket substrate protrude vertically upward from one side plate, and the middle part of the socket substrate protrudes upwards to protrude a nesting part. A storage space is enclosed between the side plate and the nesting part, and a plurality of first terminal slots are equally spaced on both sides of the base plate and communicated with the storage space; a plurality of first terminals, which are respectively accommodated in the first terminal groove; The plug is mounted on a public printed circuit board and has a plug body. The plug body has a plug substrate. The plug substrate is surrounded by an insertion space for the nesting part of the socket body to be docked and inserted. The plug substrate is provided with etc. Multiple terminal accommodation channels arranged at intervals; A plurality of second terminals are arranged in parallel and accommodated in the terminal accommodation passage provided in the plug body; It is characterized in that: a first grounding piece is installed on two opposite outer sides of the socket body of the socket and corresponding to a plurality of first terminals; a second grounding piece is installed on the other two opposite outer sides of the socket body of the socket, and The second grounding piece is in contact with the first grounding piece respectively, and one end of the second grounding piece is welded with the mother printed circuit board; a third grounding piece is installed at the opposite ends of the plug body of the plug, and the third grounding piece One end is welded with the public printed circuit board, and the other end is in contact with the first ground plate. 2. The board-to-board connector according to claim 1, wherein a plurality of mounting holes vertically penetrating through the nesting part are formed in the nesting part relative to the first terminal slot, and the receiving holes and the receiving space and the corresponding first terminal groove A terminal slot communicates; a plurality of receiving holes vertically penetrating through the side plate are formed in the side plate relative to the first terminal slot, and the receiving holes communicate with the corresponding first terminal slot. 3. The board-to-board connector according to claim 1, wherein the four corners of the socket body are respectively provided with L-shaped support blocks, and fitting grooves are formed between the support blocks and the side plates. 4. The board-to-board connector according to claim 3, characterized in that: the first grounding piece comprises a long strip body, and the two ends of the strip body are respectively extended and vertically bent to have connecting parts, and the connecting parts Inserted in the fitting groove, the top end of the connecting part is bent downward to provide an elastic part protruding in the receiving space. 5. The board-to-board connector according to claim 1, characterized in that: the second grounding piece has a transverse plate body, and the middle part of the bottom end of the transverse plate body extends outwards to be welded to the mother printed circuit board. The welding part provided is to bend an inserting piece vertically in the same direction at the two free ends of the transverse plate body, and the inner surface of the two inserting pieces is provided with a contact part in contact with the first grounding piece; the adjacent welding Inserting strips are arranged on the transverse boards on both sides of the body, and the socket substrate of the socket body is provided with matching inserting holes corresponding to the inserting strips. 6. The board-to-board connector according to claim 1, characterized in that: each of the four corners of the plug substrate protrudes upwards with a lug, the lug is rectangular, and the top surface of the lug is connected with the upper and lower penetrating protrusions. The button hole of the ear is respectively provided with a longitudinal fastening groove which runs through the ear up and down and communicates with the button hole on the top surface of the lug. 7. The board-to-board connector according to claim 6, wherein the third grounding plate includes a square snap-fit plate that can be inserted into the snap-fit groove of the lug of the plug body, and the snap-fit plate The top end is bent horizontally at right angles to one side and protrudes a rectangular soldering leg that is welded to the male printed circuit board, while the bottom end of the buckle plate is bent upwards in the same direction as the soldering leg to form a U-shaped conflicting portion, the conflicting portion The protruding part that can be in contact with the first grounding piece of the socket is out of the plug body.

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