CN201072832Y - Board-to-board connector - Google Patents

Abstract

The utility model discloses a board to board connector 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 first terminals, the first grounding pieces completely cover the 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. Therefore, when the socket and the plug are inserted into each other and butted, a grounding loop is formed by the contact conduction among the first, second and third grounding sheets, so that the grounding circuits of the male and female printed circuit boards are electrically conducted, thereby forming a good electromagnetic shielding effect.

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, low-speed signals. However, as the functions of electronic devices increase day by day, board-to-board connectors need to transmit some high-frequency and high-speed signals, and electromagnetic interference is inevitable.

Please refer to FIG. 9, which is an exploded perspective view of a conventional board-to-board connector 100', which 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 Realize signal transmission.

However, the above-mentioned board-to-board connector 100' has no grounding member, whether it is the socket 1' or the plug 3', so when the board-to-board connector 100' transmits high-frequency and high-speed signals, it is easy to generate electromagnetic interference. Thus 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, thereby forming a good electromagnetic shielding effect.

To achieve the above purpose, the utility model provides a board-to-board connector, which is electrically connected to two external male and female printed circuit boards, and the board-to-board connector includes a socket and a plug. The socket is mounted on the female printed circuit board and has a socket body. The socket body has a flat socket base plate, each of the four sides of the socket base plate protrudes vertically upward from one side plate, and the middle part of the socket base plate protrudes upward from a nesting portion. A receiving space is enclosed between the side plate and the nesting portion, and a plurality of first terminal grooves are equally spaced on both sides of the socket base plate and communicated with the receiving space. A plurality of first terminals are respectively accommodated in the first terminal slots. The plug is installed on the male printed circuit board and has a plug body. The plug body has a plug substrate, and an insertion space is formed on the plug substrate for docking and insertion of the nesting part of the socket body. The plug substrate is provided with a plurality of terminal accommodating channels arranged at equal intervals on both sides of the insertion space. A plurality of second terminals are arranged in parallel and accommodated in the terminal accommodation channel provided in the plug body. Wherein, 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, and the first grounding piece is shielded to the welding tail of the first terminal; The two opposite outer sides are equipped with a second grounding piece, 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 female printed circuit board; A third grounding piece is installed at the end, one end of the third grounding piece is welded with the male printed circuit board, and the other end is in contact with the first grounding piece.

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 three-dimensional combination diagram of the socket of the board-to-board connector of the present invention;

Fig. 2 is a three-dimensional combination diagram 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 three-dimensional combination diagram of the plug of the board-to-board connector of the present invention;

Fig. 5 is a three-dimensional combination diagram 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 cross-sectional view of the board-to-board connector of the present invention after the socket and the plug are docked and assembled;

FIG. 9 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 Socket substrate 11

Embedded hole 110 Left and right side plates 111

Front and rear side panels 112 Support block 113

Nesting Department 13 Containment Space 14

First terminal slot 15 Mounting hole 16

Storage hole 17 first terminal 20

Base 201 Holder 202

Solder tail 203 Elastic contact part 204

The first ground piece 30 The strip body 301

Connecting part 302 Elastic part 303

Extension 304 to the top 305

Second ground piece 40 Transverse board body 401

Welding part 402 Embedding 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 substantially rectangular and has a flat socket substrate 11 . The four sides of the socket substrate 11 protrude vertically from one side plate 111, 112, wherein the two side plates in the width direction are defined as left and right side plates 111, and the two sides plates in the longitudinal direction are defined as front, rear side panel 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 surfaces of the side plates 111, 112 flush. A plurality of first terminal grooves 15 are equally spaced on both sides of the socket substrate 11 and communicate with the receiving space 14 to respectively receive corresponding first terminals 20 . 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 . A plurality of receiving holes 17 vertically penetrating through the side plate 112 are defined in the side plate 112 opposite to the first terminal slots 15 , and the receiving holes 17 communicate with the corresponding first terminal slots 15 .

Each first terminal 20 has a base portion 201 , a retaining portion 202 , a solder tail portion 203 and a resilient contact portion 204 . The retaining portion 202 is inserted into and fixed in the receiving hole 17 of the side plate 112 . The solder tail portion 203 extends downward from the base portion 201 slightly beyond the bottom surface of the socket body 10 and then extends to the outside of the socket body 10 for soldering to the female printed circuit board. The contact portion 204 is inserted and fixed in the mounting hole 16 of the nesting portion 13 .

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 grounding piece 30 includes a strip body 301 , the width of the strip body 301 is just enough to cover the solder tail portion 203 of the first terminal 20 . 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, and the top of the connection portion 302 is bent downward to be provided with an elastic portion 303. In addition, the top side of the elongated board body 301 is bent upwards to define an extension part 304 , and the bottom side is provided with a plurality of abutting parts 305 extending outwards for abutting against the mother printed circuit board. 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 embedded in the periphery of the socket body 10 . Wherein, the elongated board bodies 401 of the two first grounding 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 grounding plate 30 is connected to the second grounding 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 .

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 inserting of the nesting portion 13 of the socket body 10. The four corners of the plug substrate 51 each protrude upwards. The ear 53, the lug 53 is roughly rectangular, and the top surface of the lug 53 is provided with a buttonhole 54 (as shown in Figure 6 ) that penetrates the lug 53 up and down, and is respectively provided with a vertically penetrating lug 53 on the top surface of the lug 53 and A longitudinal fastening groove 55 communicating with the buckle hole 54 . 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 , 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 inserting piece 404 of the second grounding piece 40 abuts against the back surface of the connecting portion 302 of the first grounding piece 30, and the contact portion 73 of the third grounding piece 70 contacts the first grounding piece again. The elastic part 303 of 30 elastically abuts against, 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 board. circuit board and the male printed circuit board to realize signal transmission, the abutting portion 305 of the first ground sheet 30 is held against the female printed circuit board, and the welding part 402 of the second ground sheet 40 is welded on the female printed circuit board and connected to the female printed circuit board. The grounding circuit of the circuit board is connected, and the welding pin 72 of the third grounding plate 70 is welded on the male printed circuit board and connected with the grounding circuit of the male printed circuit board, so that the grounding circuit of the male and female printed circuit boards is 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. board to board connector, itself and two outside male and female printed circuit board (PCB)s electrically connect, and this board to board connector comprises:

Socket, be installed on female printed circuit board (PCB), has jack body, jack body has a flat socket substrate, each stretches out side plate straight up four sides of socket substrate, the convex nesting part that stretches out in socket substrate middle part surrounds a receiving space between side plate and nesting part, a plurality of the first terminal grooves equidistantly are opened in the socket substrate both sides and are communicated with receiving space;

A plurality of the first terminals, it is contained in respectively in the first terminal groove;

Plug, be installed on the public seal printed circuit board, have header body, header body has the plug substrate, be surrounded by a nesting part for jack body on the plug substrate and dock the insertion space that plugs, the plug substrate inserts a plurality of terminal accommodating passages that the both sides, space offer equidistant arrangement relatively;

A plurality of second terminals, what be arranged in parallel is contained in the terminal accommodating passage set in the header body;

It is characterized in that: two relative outer side edges and corresponding a plurality of the first terminals place at the jack body of socket are equipped with first ground strip, and first ground strip is also screened to the weldering afterbody place of the first terminal; The jack body of socket in addition the external side edge of two-phase second ground strip is installed, and second ground strip contacts with first ground strip respectively, second ground strip, one end also welds mutually with female printed circuit board (PCB) and to establish; Opposite two ends in the header body of plug is equipped with the 3rd ground strip, and an end of the 3rd ground strip welds mutually with the public seal printed circuit board and establishes, and the other end then contacts with first ground strip.

2. board to board connector according to claim 1 is characterized in that: relative the first terminal groove forms the installing hole of a plurality of vertical perforation nesting parts in the described nesting part, and installing hole is communicated with receiving space and corresponding the first terminal groove; Relative the first terminal groove forms the accepting hole of a plurality of vertical perforation side plates in the described side plate, and accepting hole is communicated with corresponding the first terminal groove.

3. board to board connector according to claim 1 is characterized in that: four corners of described jack body have the support piece that is the L type respectively, support to be formed with embeded slot between piece and the side plate.

4. board to board connector according to claim 3, it is characterized in that: described first ground strip comprises a rectangular plate body, the two ends of rectangular plate body vertically bend respectively and are extended with connecting portion, the connecting portion intercalation is in embeded slot, the top end of connecting portion bends down and is provided with the protruding elastic portion that is exposed in the receiving space, the connecting portion intercalation is in embeded slot, and rectangular plate body top side upwards bending is extended with extension, and the place, bottom side then is provided with several and stretches out to support the top on female printed circuit board (PCB).

5. board to board connector according to claim 1, it is characterized in that: described second ground strip has a horizontal plate body, laterally the center bottom place of plate body is outward extended with to weld mutually with female printed circuit board (PCB) and establishes weld part, vertically be bent with an intercalation sheet in the same way in horizontal plate body two free ends, the medial surface place of two intercalation sheets then is provided with and the contacted contact site of first ground strip; The horizontal plate body of described adjacent weld part both sides is provided with the intercalation bar, and the socket substrate of described jack body corresponds to intercalation bar place and is provided with the embedding hole of matching.

6. board to board connector according to claim 1, it is characterized in that: each convex lug that stretches out of described plug substrate four corners, lug is roughly rectangular, the lug end face offers and passes through the button hole that this wears lug up and down, offers a vertical buckling groove that runs through this lug up and down and be connected with button hole respectively in the lug end face.

7. board to board connector according to claim 6, it is characterized in that: described the 3rd ground strip comprises a buckling plate that is square, the buckling plate intercalation is in the buckling groove of the lug of header body, a rectangle welding foot that welds mutually with the public seal printed circuit board is stretched out to the bending of the rectangular level of a side in the buckling plate top, the buckling plate bottom then with welding foot same to and upwards bend a contact part that takes the shape of the letter U, can contact with first ground strip of the socket protruding dew place of conducting, contact part goes out outside the header body.

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