Board-to-board connector combination

Abstract

The utility model provides a board-to-board connector combination, which comprises a male end connector and a female end connector, and is characterized in that the male end connector comprises a first body, a first terminal and a first shielding shell; the female end connector comprises a second body, a second terminal and a second shielding shell; the first shielding shell comprises a pair of side plates extending longitudinally and a pair of end plates connected to the two longitudinal ends of the side plates, and a pair of buckle holes are formed in the side plates; the second shielding shell comprises a pair of top covers covering the top face of the second body, a pair of side covers covering the side faces of the second body, and a pair of limiting insertion arms which are bent inwards and extend from the two ends of the side covers, and the side covers are provided with a pair of buckle protrusions matched with the pair of buckle holes. According to the utility model, the first shielding shell and the second shielding shell are arranged on the male connector and the female connector so as to play a signal shielding role, and the first shielding shell and the second shielding shell are mutually buckled so as to improve the retention after plugging, so that loosening or falling off is prevented, and the contact stability of the first shielding shell and the second shielding shell is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connections, and more particularly to a board-to-board connector assembly. Background Technology

[0002] Board-to-board (BTO) connectors are a common type of connector used in electronic products to establish an electrical connection between two circuit boards. They typically consist of a plug and a socket, soldered onto the two boards respectively, and communication between them is achieved through mating. Generally, BTO connectors have a relatively simple structure, often employing a frame-type design with two rows of conductive terminals. As the requirements for signal transmission quality increase, many applications require connectors with more conductive terminals or the transmission of higher frequency signals. In such cases, signal interference between the conductive terminals is highly likely, placing higher design demands on existing connectors. Current BTO connectors lack adequate signal shielding, leading to crosstalk issues between the two rows of conductive terminals when transmitting high-frequency signals. Furthermore, after mating, existing BTO connectors often loosen or detach due to insufficient holding force, resulting in poor contact and affecting contact stability. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a board-to-board connector assembly to improve at least one of the problems in the prior art, such as insufficient holding force and lack of shielding means.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a board-to-board connector assembly, comprising a male connector and a female connector that are mutually plugged into each other, wherein the male connector comprises a first body, a plurality of first terminals and a first shielding shell; the female connector comprises a second body, a plurality of second terminals and a second shielding shell; the first shielding shell comprises a pair of longitudinally extending side plates and a pair of end plates connected to the longitudinal ends of the side plates, wherein a pair of snap-fit ​​holes are formed on the side plates; the second shielding shell comprises a pair of top covers covering the top surface of the second body, a pair of side covers covering the side surfaces of the second body, and a pair of limiting arms extending inwardly from both ends of the side covers, wherein a pair of snap-fit ​​protrusions are provided on the side covers to cooperate with the pair of snap-fit ​​holes.

[0005] Furthermore, the first body is provided with a frame-shaped base, a pair of fixed seats integrally connected to both ends of the base, and a pair of positioning parts extending vertically upward from the fixed seats; the first shielding shell is arranged around the base and forms an annular groove between the shielding shell and the base to accommodate the male connector.

[0006] Furthermore, the buckle hole extends inward through the side plate to connect with the annular groove, and the bottom edge of the side plate is provided with a pair of downwardly protruding fixing pieces.

[0007] Furthermore, the base includes a pair of longitudinally extending sidewalls and a pair of endwalls integrally connected to the longitudinal ends of the pair of sidewalls. The pair of sidewalls and the pair of endwalls are integrally connected and together form a plug-in cavity. The fixing seat is integrally connected to the bottom of the pair of endwalls, and the fixing seat is in the shape of a horizontally extending plate.

[0008] Furthermore, the length extension direction of the fixed seat is perpendicular to the length extension direction of the side wall; the pair of positioning parts are integrally connected to the fixed seat, and a slot is formed between the positioning parts and the fixed seat.

[0009] Furthermore, the top of the positioning part is provided with a notch, which is formed on the outer surface of the positioning part; a pair of downwardly protruding pins and a pair of upwardly extending bent arms are formed on the end plate, the pins are inserted into the slot, and the bent arms are folded outward from the top edge of the end plate and held in the notch of the positioning part.

[0010] Furthermore, the second body is provided with a pair of side walls, a pair of end walls, and a pair of tongue plates located inside the side walls and end walls. Each end wall of the second body is provided with a pair of positioning slots and a pair of positioning holes, and the limiting insert arm is accommodated in the positioning slots.

[0011] Furthermore, the positioning slot extends downward through the end wall of the second body, and the positioning hole extends downward into the end wall of the second body and is located inside the positioning slot.

[0012] Furthermore, the second shielding housing also includes at least one pair of mounting arms that bend downward from the top cover and are inserted downward into the positioning socket.

[0013] Furthermore, the plurality of first terminals include a plurality of signal terminals and a plurality of power terminals. Each of the signal terminals and each of the power terminals is provided with a piece-shaped vertical contact arm and a piece-shaped horizontal welding arm, and the width of the vertical contact arm of the power terminal is at least twice or more than the width of the vertical contact arm of the signal terminal.

[0014] Compared with the prior art, this utility model provides signal shielding protection by setting a first shielding shell and a second shielding shell on the male connector and the female connector. At the same time, the interlocking structure of the first shielding shell and the second shielding shell is used to improve the holding force of the male and female connectors after insertion, so as to prevent loosening or falling off after insertion, and effectively improve the contact stability of the two. Attached Figure Description

[0015] Figure 1 This is a perspective view of the female connector of the board-to-board connector assembly described in this utility model.

[0016] Figure 2 This is a perspective view of the male connector of the board-to-board connector assembly described in this utility model.

[0017] Figure 3 This is an exploded view of the female connector of the board-to-board connector assembly described in this utility model.

[0018] Figure 4 This is an exploded view of the male connector of the board-to-board connector assembly described in this utility model. Detailed Implementation

[0019] Please see Figures 1 to 4 As shown, this utility model provides a board-to-board connector assembly, which includes a female connector 100 and a male connector 200. The two are paired and plugged into each other to complete the electrical connection. It should be noted that the names of the male connector 200 and the female connector 100 are only for easy distinction, and the words "male" and "female" have no specific meaning.

[0020] The female connector 100 includes a first body 110, a plurality of first terminals 120 housed within the first body 110, and a first shielding shell 130 fixed to the first body 110. The first body 110 is injection molded from an insulating material. Figure 1 and Figure 3As shown, the first body 110 has a frame-shaped base 111, a pair of fixing seats 112 integrally connected to both ends of the base 111, and a pair of positioning parts 113 extending vertically upward from the fixing seats 112. The base 111 includes a pair of longitudinally extending sidewalls 114 and a pair of endwalls 115 integrally connected to the longitudinal ends of the pair of sidewalls 114. The pair of sidewalls 114 and the pair of endwalls 115 are integrally connected and together form a plug-in cavity 116. The plug-in cavity 116 is located inside the sidewalls 114 and the endwalls 115 to accommodate the male connector 200. The inner wall surface of the sidewalls 114 is provided with a plurality of first channels 117 accommodating the first terminal 120. The plurality of first channels 117 include two channels of different widths. The pair of fixing seats 112 are integrally injection molded with the base 111, and the fixing seats 112 are integrally connected to the bottom of the pair of end walls 115. Preferably, the fixing seats 112 are horizontally extending flat plates, and the length extension direction of the fixing seats 112 is perpendicular to the length extension direction of the side walls 114. At the same time, the two ends of the fixing seats 112 protrude beyond the pair of side walls 114, so that the pair of fixing seats 112 and the base 111 form an I-shaped structure. The pair of positioning parts 113 are integrally connected with the fixing seats 112, and a slot 118 is formed between the positioning parts 113 and the fixing seats 112. The slot 118 penetrates downward through the fixing seats 112 and the positioning parts 113 for insertion and engagement with the first shielding shell 130. Preferably, the top of the positioning part 113 is provided with a notch 119, which is formed on the outer surface of the positioning part 113 for snap-fit ​​engagement with the first shielding shell 130.

[0021] The plurality of first terminals 120 include a plurality of signal terminals 121 and a plurality of power terminals 122. Both the signal terminals 121 and the power terminals 122 are L-shaped. Each of the signal terminals 121 and each of the power terminals 122 is provided with a vertical contact arm S and a horizontal welding arm H. The vertical contact arm S of the power terminal 122 and the vertical contact arm S of the signal terminal 121 are both sheet-like. The vertical contact arm S of the power terminal 122 is wider than the vertical contact arm S of the signal terminal 121. Preferably, the width of the vertical contact arm S of the power terminal 122 is at least twice or more the width of the vertical contact arm S of the signal terminal 121.

[0022] The first shielding housing 130 is disposed on the first body 110 and surrounds the base 111, forming an annular groove 131 between the shielding housing 130 and the base 111 to accommodate the male connector 200. The first shielding housing 130 includes a pair of longitudinally extending side plates 132 and a pair of end plates 133 connected to the longitudinal ends of the pair of side plates 132. The side plates 132 and the end plates 133 are integrally formed by stamping metal. The side plates 132 are provided with a pair of snap-fit ​​holes 134, which penetrate the side plates 132 inward to communicate with the annular groove 131. The bottom edge of the side plates 132 is provided with a pair of downwardly protruding fixing pieces 135 for fixing to a circuit board. The end plate 133 has a pair of downwardly protruding pins 136 and a pair of upwardly extending bent arms 137. The pins 136 are inserted into the slots 118 to fix the end plate 133 to the fixing seat 112. The bent arms 137 are arc-shaped and are formed by folding outward from the top edge of the end plate 133. Preferably, the bent arms 137 are inverted U-shaped and are held in the recess 119 of the positioning part 113. The end plate 133 is reliably positioned with the first body 110 through the pins 136 and the bent arms 137.

[0023] The male connector 200 includes a second body 210, a plurality of second terminals 220 housed within the second body 210, and a second shielding shell 230 fixed to the second body 210. Figure 2 and Figure 4 As shown, similar to the first body 110, the second body 210 also has a pair of sidewalls 211 and a pair of endwalls 212 integrally connected to the longitudinal ends of the pair of sidewalls 211, and the pair of sidewalls 211 and the pair of endwalls 212 are integrally connected. It should be noted that the second body 210 also has a mating tongue plate 213 located inside the sidewalls 211 and endwalls 212, the mating tongue plate 213 being used to fix and accommodate the second terminal 220. Each endwall 212 of the second body 210 has a pair of positioning slots 214 and a pair of positioning holes 215. The positioning slots 214 penetrate downward through the endwalls 212 of the second body 210 to engage and fix with the second shielding shell 230, and the positioning holes 215 extend downward into the endwalls 212 of the second body 210, and the positioning slots 214 are located outside the positioning holes 215.

[0024] The second shielding housing 230 includes a pair of top covers 231 covering the top surface of the side wall 211 of the second body 210, a pair of side covers 232 covering the side surface of the side wall 211 of the second body 210, at least a pair of L-shaped limiting arms 233 extending inwardly from the side covers 232, and at least a pair of mounting arms 234 extending downwardly from the top covers 231. The top covers 231 and the side covers 232 are integrally connected to cover the top surface and side surface of the side wall 211 of the second body 210, respectively, so that the second terminal 220 is covered inside the top covers 231 and the side covers 232, thereby achieving a good shielding effect. Preferably, a pair of outwardly protruding snap protrusions 235 are formed on the side covers 232 for corresponding snap-fit ​​holes 134 on the first shielding housing 130, thereby increasing the snap-fit ​​force between the first shielding housing 130 and the second shielding housing 230. The limiting arm 233 is inserted downward into the positioning slot 214 of the end wall 212 of the second body 210. Preferably, the mounting arm 234 is inserted downward into the positioning hole 215. In this way, the top cover 231 and the side cover 232 are fixed to the second body 210 by the mounting arm 234 and the limiting arm 233.

[0025] The second terminal 220 includes an L-shaped welding foot 221 and a U-shaped docking arm 222 integrally connected to the top of the welding foot 221. The welding foot 221 is held within the side wall 211 of the second body 210, while the U-shaped docking arm 222 extends inward and is exposed on the surface of the docking tongue 213 for electrical docking with the first terminal 120. Similar to the first terminal 120, the second terminal 220 also includes several signal terminals 223 and several power terminals 224 with different width values, which will not be described in detail here.

[0026] In summary, the board-to-board connector assembly of this utility model provides signal shielding protection by providing a first shielding shell 130 and a second shielding shell 230 on the male connector 200 and the female connector 100. At the same time, the interlocking structure of the first shielding shell 130 and the second shielding shell 230 improves the holding force of the male and female connectors 100 after insertion, preventing loosening or falling off after insertion, and effectively improving the contact stability of the two.

[0027] The above description is merely the preferred embodiment of this utility model and is not intended to limit this utility model in any way. Any possible variations and modifications made by those skilled in the art to the technical solution of this utility model without departing from the scope of the technical solution of this utility model using the methods disclosed above shall fall within the scope of protection of the claims.

Claims

1. A board-to-board connector assembly, comprising a male connector and a female connector that are mutually plugged into each other, wherein the male connector includes a first body, a plurality of first terminals, and a first shielding shell; the female connector includes a second body, a plurality of second terminals, and a second shielding shell; characterized in that: The first shielding housing includes a pair of longitudinally extending side plates and a pair of end plates connected to the longitudinal ends of the side plates, and a pair of snap-fit ​​holes are formed on the side plates; the second shielding housing includes a pair of top covers covering the top surface of the second body, a pair of side covers covering the side surface of the second body, and a pair of limiting inserts extending inward from both ends of the side covers, and a pair of snap-fit ​​protrusions that cooperate with the pair of snap-fit ​​holes are provided on the side covers.

2. The board-to-board connector assembly as described in claim 1, characterized in that: The first body has a frame-shaped base, a pair of fixed seats integrally connected to both ends of the base, and a pair of positioning parts extending vertically upward from the fixed seats; the first shielding shell is arranged around the base and forms an annular groove between the shielding shell and the base to accommodate the male connector.

3. The board-to-board connector assembly as described in claim 2, characterized in that: The buckle hole extends inward through the side plate to connect with the annular groove, and the bottom edge of the side plate is provided with a pair of downward protruding fixing pieces.

4. The board-to-board connector assembly as described in claim 3, characterized in that: The base includes a pair of longitudinally extending sidewalls and a pair of endwalls integrally connected to the longitudinal ends of the pair of sidewalls. The pair of sidewalls and the pair of endwalls are integrally connected and together form a plug-in cavity. The fixing seat is integrally connected to the bottom of the pair of endwalls, and the fixing seat is in the shape of a horizontally extending plate.

5. The board-to-board connector assembly as described in claim 4, characterized in that: The length extension direction of the fixed seat is perpendicular to the length extension direction of the side wall; the pair of positioning parts are integrally connected to the fixed seat, and a slot is formed between the positioning parts and the fixed seat.

6. The board-to-board connector assembly as described in claim 5, characterized in that: The top of the positioning part is provided with a notch, which is formed on the outer surface of the positioning part; a pair of downwardly protruding pins and a pair of upwardly extending bent arms are formed on the end plate, the pins are inserted into the slot, and the bent arms are folded outward from the top edge of the end plate and held in the notch of the positioning part.

7. The board-to-board connector assembly as described in claim 6, characterized in that: The second body has a pair of side walls, a pair of end walls, and a pair of tongue plates located inside the side walls and end walls. Each end wall of the second body has a pair of positioning slots and a pair of positioning holes, and the limiting insert arm is accommodated in the positioning slots.

8. The board-to-board connector assembly as described in claim 7, characterized in that: The positioning slot extends downward through the end wall of the second body, and the positioning hole extends downward into the end wall of the second body and is located inside the positioning slot.

9. The board-to-board connector assembly as described in claim 8, characterized in that: The second shielding housing also includes at least one pair of mounting arms that bend downwards from the top cover and are inserted downwards into the positioning socket.

10. The board-to-board connector assembly as described in any one of claims 1 to 9, characterized in that: The plurality of first terminals include a plurality of signal terminals and a plurality of power terminals. Each of the signal terminals and each of the power terminals is provided with a piece-shaped vertical contact arm and a piece-shaped horizontal welding arm, and the width of the vertical contact arm of the power terminal is at least twice or more than the width of the vertical contact arm of the signal terminal.

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