CN201060978Y - Board-to-board connector - Google Patents

Abstract

The utility model discloses a board to board connector, including socket connector and plug connector. The socket connector comprises a first body, a plurality of first terminals are accommodated in the first body, and a shielding shell is sleeved outside the first body. The shielding shell is provided with a first side plate and a second side plate, two ends of the first side plate respectively extend out of a welding pin to be welded with a printed circuit board, and the middle part of the inner side of the second side plate is respectively provided with a guide connecting hook. The plug connector comprises a second body, a plurality of second terminals are accommodated in the second body, and an electric connector is respectively inserted into two ends of the second body. The electric connector has a plate body to abut against the guiding hook of the shielding shell, one end of the plate body is bent outwards to extend a welding plate, and the welding plate is welded with another printed circuit board. By the contact between the solder plate and the conductive hook in the board-to-board connector, electromagnetic interference generated inside the connector can be introduced into the ground circuit of the printed circuit board.

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 electromagnetic shielding function.

Background technique

A board-to-board connector is a connector used inside electronic products to realize signal transmission between two circuit boards.

Please refer to Fig. 8, which discloses a structure of a conventional connector 100'. The connector 100' includes a socket 1' and a plug 2'. Wherein, the welding ends of the socket terminal 10' of the socket 1' and the plug terminal 20' of the plug 2' are respectively welded on two corresponding circuit boards (not shown in the figure), when the plug body 21' of the plug 2' is inserted into the socket 1 When in the receiving groove 12' opened by the socket body 11', the signal transmission between the two circuit boards can be realized by conducting the plug terminals 20' and the socket terminals 10'.

However, when the connector 100' is used to transmit high-frequency signals (such as transmitting communication signals in mobile phones), due to the high operating frequency of the corresponding electronic products, the electromagnetic radiation in the circuit is relatively large, which will interfere with the signal The transmission between the socket 1' and the plug 2' of the connector 100'.

Utility model content

The purpose of this utility model is to provide a board-to-board connector with electromagnetic shielding function to effectively shield the electromagnetic interference generated during the transmission process of high-frequency signals and improve the transmission quality of signals in view of the defects in the above-mentioned background technology.

To achieve the above purpose, the board-to-board connector provided by the utility model includes a socket connector and a plug connector. The receptacle connector includes a first body on which a plurality of first terminal accommodating channels are opened; a plurality of first terminals are accommodated in corresponding first terminal accommodating channels of the first body; and a covering first body The shielding shell has two first side plates arranged opposite to each other and two second side plates connected to both ends of the first side plate, and the bottom of the first side plate is bent outwards from both ends to extend a welding leg In order to be welded with a printed circuit board, an elastic part extends inward from the inner middle part of the second side plate, and the end of the elastic part bends downward in an arc shape to form a hook-shaped guiding hook. The plug connector includes a second body on which a plurality of second terminal accommodating channels are opened; a plurality of second terminals are accommodated in corresponding second terminal accommodating channels of the second body; and an electrical connector having A plate-shaped body that can abut against the guide hook of the shielding case. The plate-shaped body is inserted into two ends of the second body, and one end thereof is bent outwards to extend a welding plate, and the welding plate is welded to another printed circuit board.

When the board-to-board connector of the utility model is combined, the welding plate of the electrical connector and the guide hook of the shielding shell are pushed against and conducted, so that the board-to-board connector of the utility model can transmit high-frequency and high-speed signals , can introduce the generated electromagnetic interference into the printed circuit board to achieve a good electromagnetic shielding effect and ensure stable signal transmission between printed circuit boards.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional exploded view of the board-to-board connector of the present invention.

Fig. 2 is a three-dimensional exploded view of the receptacle connector in the board-to-board connector of the present invention.

Fig. 3 is a three-dimensional assembled view of the receptacle connector in the board-to-board connector of the present invention.

Fig. 4 is a three-dimensional exploded view of the plug connector in the board-to-board connector of the present invention.

Fig. 5 is a three-dimensional assembled view of the plug connector in the board-to-board connector of the present invention.

Fig. 6 is a three-dimensional assembled view of another angle of the plug connector in the board-to-board connector of the present invention.

Fig. 7 is a three-dimensional assembled view of the board-to-board connector of the present invention.

FIG. 8 is an exploded perspective view of a conventional board-to-board connector.

The reference numerals of each element in the figure are explained as follows:

Connector 100’ Socket 1’

Socket terminal 10’ Socket body 11’

Receptacle 12’ Plug 2’

Plug terminal 20’ Plug body 21’

Board-to-Board Connector 1 Socket Connector 10

First body 11 Protruding part 110

Accommodating space 111 first terminal slot 1110

First side wall 112 First terminal hole 1120

Snapping part 1121 Fitting part 1122

Block 1123 Second side wall 113

Rib 1131 Notch 1132

Limit slot 1133 first terminal 12

Shielding shell 13 First side plate 130

Welding foot 1300 Engagement groove 1301

Fitting hole 1302 Second side plate 131

Arm 1311 Elastic part 1312

Guide hook 1313 plug connector 20

Electrical connector 21 plate-shaped body 211

Grooving 2111 Bump 2112

Welding plate 212 Second body 22

Engagement groove 220 First side wall 221

Second terminal hole 2211 Second terminal slot 2212

Lug 2213 Card slot 2214

Second side wall 222 Accommodating groove 2221

Terminal slot 224 Second terminal 23

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following examples are given and described in detail with accompanying drawings.

Please refer to FIG. 1 , the board-to-board connector 1 of the present invention includes a receptacle connector 10 and a plug connector 20 . The receptacle connector 10 and the plug connector 20 are respectively welded on corresponding two circuit boards (not shown in the figure). Through the electrical connection between the socket connector 10 and the plug connection 20 , signal transmission between the two circuit boards is achieved.

Please refer to FIG. 2 , the receptacle connector 10 includes a first body 11 , a plurality of first terminals 12 accommodated in the first body 11 , and a shielding shell 13 covering the first body 11 .

The first body 11 has a roughly rectangular flat plate-shaped main body, and a pair of first side walls 112 protruding upwards from the front and rear ends of the main body respectively extend along the longitudinal direction of the main body. The left and right sides of the main body A pair of second side walls 113 slightly lower than the first side walls 112 protrude upward from both ends. A longitudinally extending protruding portion 110 extends vertically upward from the center of the bottom of the main body. The protruding portion 110 extends parallel to the two first side walls 112 and has a height slightly lower than that of the second side wall 113 . An annular accommodating space 111 is formed between the protruding portion 110 and the two side walls 112 , 113 for accommodating the plug connector 20 . The upper surfaces of the two first side walls 112 are vertically and downwardly provided with a plurality of evenly distributed first terminal holes 1120, and the bottom of the first body 11 and the front and rear sides of the protrusion 110 are respectively provided with the first terminal holes 1120. corresponding to the first terminal slot 1110 . The terminal holes 1120 and the terminal slots 1110 cooperate to form a first terminal accommodating channel for receiving the first terminals 12 . A wedge-shaped fitting portion 1122 protrudes from both ends of the outer wall of the first side wall 112 , and a rectangular engaging portion 1121 protrudes from a substantially middle portion of the outer wall. A wedge-shaped locking block 1123 protrudes from the inner sidewall of the first side wall 112 at a position corresponding to the fitting portion 1122 . Two inner ends of the two second side walls 113 protrude upwards and protrude two ribs 1131 that are flush with the two first side walls 112 . A notch 1132 is formed between the two protruding ribs 1131 . The second sidewall 113 vertically defines a limiting groove 1133 penetrating through the second sidewall 113 and communicating with the accommodating space 111 at the inner side of the notch 1132 .

The shielding shell 13 is roughly in the shape of a rectangular ring, which is punched from metal. The shielding case 13 has two vertical first side plates 130 arranged at a certain distance and a second side plate 131 connected to the top of the two first side plates 130 and arranged horizontally along both ends. A middle portion of the bottom edge of the first side plate 130 is recessed upward with a "convex"-shaped engagement groove 1301 . The two ends of the first side plate 130 are respectively provided with a square fitting hole 1302 near the corresponding second side plate 131, and a welding pin 1300 is respectively bent and extended outward at the two ends of the bottom edge for The shielding case 13 is soldered on a corresponding circuit board to be connected to the ground circuit of the circuit board. The two second side plates 131 are bent downwards to extend a locking arm 1311 on the outer side of the middle part, and an elastic part 1312 is extended inwards on the inner part of the middle part, and the end of the elastic part 1312 is bent downwards in an arc shape to form a hook shape. The guide hook 1313.

Please refer to FIG. 1 to FIG. 3 , when the receptacle connector 10 is assembled, the first terminals 12 are fixed in the corresponding first terminal holes 1120 and first terminal slots 1110 of the first body 11, and the shielding shell 13 Wrapped on the outside of the first body 11 . Wherein, the first side plate 130 of the shielding shell 13 covers the outer surface of the first side wall 112 of the first body 11, the engaging groove 1301 is engaged on the engaging portion 1121 of the first body 11, and the fitting hole 1302 Clamped on the fitting portion 1122 of the first body 11 . The second side plate 131 of the shielding shell 13 covers the top surface of the second side wall 13 of the first body 11, and the clamping arm 1311 is fastened on the outer surface of the second side wall 113 of the first body 11 to realize The receptacle connector 10 is firmly assembled.

Referring to FIG. 4 , the plug connector 20 includes a second body 22 , a plurality of second terminals 23 accommodated in the second body 22 , and a pair of electrical connectors 21 plugged into the left and right ends of the second body 22 respectively.

Referring to FIGS. 4 to 6 , the second body 22 has a roughly rectangular plate-shaped main body. The middle part of the lower surface of the main body is inwardly recessed to form a rectangular engagement groove 220 , which is just large enough to accommodate the protrusion of the receptacle connector 10 . Section 110. Two longer first sidewalls 221 are formed on the front and rear sides of the engaging groove 220 , and two shorter second sidewalls 222 are formed on the left and right ends respectively. A plurality of uniformly distributed second terminal holes 2210 are opened vertically upward on the bottom surface of the first side walls 221, and a hole communicating with the engagement groove 220 is opened on the opposite inner side of the first side wall 221 corresponding to each second terminal hole 2210. The second terminal slot 2211 . The top surface of the second body 22 is oppositely provided with two rows of parallel horizontal terminal slots 224 , and the terminal slots 224 communicate with the corresponding second terminal holes 2210 and the second terminal slots 2211 . The terminal slots 224 cooperate with the second terminal holes 2210 and the second terminal slots 2211 to form a second terminal accommodating channel for receiving the second terminals 23 . Both ends of the first side wall 221 extend outward to form two rectangular lugs 2213 , and the front and rear sides of the two lugs 2213 are vertically recessed from the top to form a substantially rectangular locking groove 2214 . An accommodating groove 2221 is formed downwards near the second sidewall 222 of the two lugs 2213 .

Please refer to Fig. 4 again, the electrical connector 21 is punched by metal, and it has a plate-shaped body 211, the top of the plate-shaped body 211 extends upwards in the middle and bends outwards to form a tongue-shaped The welding plate 212, the top surface of the welding plate 212 is used to be welded on the corresponding circuit board and electrically connected with the grounding circuit of the circuit board. A slot 2111 is provided downward at the junction of the plate-shaped body 211 and the welding plate 212, thereby forming a shoulder on the plate-shaped body 211, and the middle parts of the left and right sides of the plate-shaped body 211 respectively protrude outwards and set a convex wall. Point 2112.

Please refer to FIG. 5 and FIG. 6 together. When the plug connector 20 is assembled, the second terminals 23 are fixed in the corresponding second terminal accommodating channel of the second body 22 from top to bottom. The plate-shaped body of the electrical connector 21 is inserted from the lower end into the accommodation grooves 2221 on both sides of the second body 22, and the two slots 2111 are respectively engaged in the outer edge of the accommodation groove 2221 of a lug 2213, and the convex points 2112 is clamped on the second body 22 , so that the welding plate 212 protrudes upwards from the upper surface of the plug connector 20 from between the two lugs 2213 and bends outward.

Please refer to Fig. 1 and Fig. 7 together, when the plug connector 20 is inserted into the receptacle connector 10, the plug connector 20 is inserted into the accommodating space 111 of the receptacle connector 10, and the protrusion 110 of the receptacle connector 10 is inserted into the plug connection. 20, and the block 1123 on the inner wall of the socket connector 10 is inserted into the slot 2214 of the plug connector 20, so as to achieve the connection between the first terminal 12 and the second terminal 23 of the board-to-board connector 1. The stability of the electrical connection between. The soldering pins 1300 of the socket connector 10 and the soldering plates 212 of the electrical connector 21 of the plug connector 20 are respectively soldered to the corresponding circuit boards and connected to the ground circuit of the corresponding circuit boards. When the plug connector 20 is inserted into the receptacle connector 10, the plate-shaped body 211 of the electrical connector 21 of the plug connector 20 abuts against the guide hook 1313 of the shielding shell 13, so that the elastic portion 1312 of the shielding shell 13 is downward Bending deformation to achieve stable contact between the shielding shell 13 and the electrical connector 21, thereby realizing the conduction between the electrical connector 21 of the plug connector 20 and the shielding shell 13 of the socket connector 10, thereby conducting the corresponding two circuits The ground circuit on the board is used to eliminate electromagnetic interference generated during signal transmission.

From the above, when the board-to-board connector 1 of the present invention transmits high-frequency and high-speed signals, the generated electromagnetic interference can be introduced into the printed circuit board, thereby eliminating electromagnetic interference, achieving a good electromagnetic shielding effect, and ensuring that the printed circuit board Stable transmission of high-frequency signals between them.

Claims (6)

1. A board-to-board connector installed on two printed circuit boards, including a socket connector and a plug connector, the socket connector includes a first body, the first body is provided with a plurality of first terminal capacity channels, and the first terminal accommodation channels accommodate a number of first terminals; the plug connector includes a second body, the second body is opened with a number of second terminal accommodation channels, and the second terminal accommodation channels A number of second terminals are accommodated in the channel, and its characteristics are: The receptacle connector also includes a shielding shell covering the first body, the shielding shell has two first side plates opposite to each other and two second side plates connected to the two ends of the first side plate, the first side plate The bottom edge of the bottom is bent outwards at both ends to extend a soldering foot that is welded to a printed circuit board, and the inner middle part of the second side plate extends inwards with an elastic portion, and the end of the elastic portion bends downward in an arc shape into a guide hook; The plug connector also includes an electrical connector, the electrical connector has a plate-shaped body that can abut against the guide hook of the shielding shell, and the plate-shaped body is inserted at both ends of the second body. One end of the plate-shaped body is bent outwards and extends to a welding plate which is welded with another printed circuit board. 2. The board-to-board connector according to claim 1, characterized in that: the plate-shaped body of the electrical connector is provided with slots at the bases on both sides of the welding plate, and the middle parts of the left and right sides of the plate-shaped body are respectively A convex point protrudes outward. 3. The board-to-board connector according to claim 1, characterized in that: the first side plate of the shielding shell is arranged vertically, the second side plate is arranged horizontally, and the first side plate covers the On the front and rear sides of the first body, the second side plate covers the top surfaces of the left and right ends of the first body. 4. The board-to-board connector according to claim 3, characterized in that: the middle part of the bottom edge of the first side plate of the shielding shell is provided with a "convex"-shaped engaging groove upwardly, and the first side Two ends of the plate are provided with a square fitting hole near the corresponding second side plate, a protruding fitting part is provided at both ends of the outer side wall of the first body, and a protruding fitting part is arranged in the middle of the outer side wall. The engaging portion, the engaging portion and the fitting portion are respectively engaged in the engaging groove and the fitting hole. 5. The board-to-board connector according to claim 4, characterized in that: the second side plate of the shielding shell is bent downward on the outer side of the middle part and has a longitudinally extending locking arm, and the locking arm is buckled fixed on the outer surface of the first body. 6. The board-to-board connector according to claim 1, characterized in that: the two ends of the inner wall of the first body respectively protrude from a block, and the front and rear opposite ends of the second body extend horizontally A lug, the front and rear sides of the lug are respectively formed with concave engaging grooves engaged with the locking block.

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