Board-to-board connector assembly

Abstract

The board-to-board connector assembly comprises a plug connector and a socket connector matched with the plug connector, the socket connector comprises a butt joint seat and a plurality of socket terminals provided with the butt joint seat, and each socket terminal is provided with a butt joint part matched with each terminal groove and clamping arms oppositely extending from the two sides of each butt joint part; the plug connector comprises a fixed seat and a plurality of plug terminals arranged on the fixed seat; each plug terminal comprises a connecting part which protrudes out of one surface of the fixed seat and is used for being in contact with the inner side of each clamping arm; the butt joint parts of the socket terminals are matched with the shapes of the terminal grooves, so that when the socket terminals are installed in the terminal grooves, the butt joint parts are stably positioned in the terminal grooves.

Description

Technical Field

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

[0002] Board-to-board (BTB) connectors are a type of board-to-board connector assembly. This assembly includes a plug connector and corresponding receptacle connectors. The plug connector has multiple male terminals, and the receptacle connector has multiple female terminals. When the plug and receptacle connectors are inserted, the male terminals mate with the female terminals to achieve signal transmission between the two printed circuit boards (PCBs) to which the plug and receptacle connectors are soldered. When the two PCBs are vibrated and pulled apart, they can easily separate from the plug and receptacle connectors. Utility Model Content

[0003] In view of the above problems, a board-to-board connector assembly is provided, including a receptacle connector and a plug connector. The receptacle connector includes a mating seat and a plurality of receptacle terminals disposed on the mating seat. The mating seat has a plurality of terminal slots, and each receptacle terminal has a mating portion that matches the respective terminal slot and clamping arms extending opposite to each other from both sides of the mating portion. The plug connector includes a fixing seat that abuts the mating seat. The fixing seat has a plurality of terminal slots, and the plug connector includes a plurality of plug terminals disposed in each terminal slot. Each plug terminal includes a connecting portion protruding from one side of the fixing seat and for contacting the inner side of each clamping arm.

[0004] Preferably, the socket connector has guide grooves on both sides of the mating seat, and the plug connector has guide posts protruding from both sides of the fixing seat, with each guide post corresponding to a guide groove.

[0005] Preferably, each guide post includes multiple guide ramps, and each guide ramp is located at one end away from the fixed base.

[0006] Preferably, the socket connector has a first recess, a second recess, and a third recess located on the inner wall surfaces of each terminal slot and adjacent to each other.

[0007] Preferably, the mating portion of each socket terminal includes a first plate and a second plate and a third plate located on both sides of the first plate. Each clamping arm extends outward from the side end of each second plate and each third plate respectively. The first plate corresponds to the first recess, the second plate corresponds to the second recess, and the third plate corresponds to the third recess.

[0008] According to some embodiments, the first plate and the second plate, and the first plate and the third plate are perpendicular to each other, and the first plate, the second plate and the third plate have insertion channels formed on their respective inner sides.

[0009] Preferably, the mating portion of each socket terminal includes a baffle extending outward from the side end of the first plate, and the baffle is located on the side of each clamping arm.

[0010] Preferably, the socket connector includes a plurality of first fixing members, each of which is coupled to both sides of the mating seat.

[0011] Preferably, each plug terminal includes a solder portion extending outward from the connecting portion and exposed on the other side of the fixing base. The connecting portion and the solder portion are substantially perpendicular, and the extension direction of the solder portion is at the same level as the other side of the fixing base.

[0012] Preferably, the plug connector includes a plurality of second fixing members, each of which is coupled to both sides of the fixing base.

[0013] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0014] By matching the shape of the mating part of each socket terminal to the shape of each terminal slot, the mating parts are securely fixed in each terminal slot when each socket terminal is installed. In addition, by matching the shape of the connecting part of each plug terminal with the shape of each clamp arm, the stability of the mating between the socket connector and the plug connector is ensured. Attached Figure Description

[0015] Figure 1 Based on some embodiments, schematic diagrams of the front appearance of the socket connector and the plug connector are drawn.

[0016] Figure 2 Based on some embodiments, schematic diagrams of the back of the socket connector and plug connector are drawn.

[0017] Figure 3 An exploded front view of the socket connector is shown based on some embodiments.

[0018] Figure 4 Based on some embodiments, a partial appearance schematic diagram of the socket connector is drawn.

[0019] Figure 5 Based on some embodiments, an exploded view of the back of the socket connector is drawn.

[0020] Figure 6 An exploded front view of the plug connector is shown based on some embodiments.

[0021] Figure 7 Based on some embodiments, an exploded view of the back of the plug connector is drawn.

[0022] Figure 8 Based on some embodiments, top view diagrams of socket connectors and plug connectors are drawn.

[0023] Figure 9 draw Figure 8 Schematic diagram of cross section 9-9.

[0024] Figure 10 draw Figure 9 A cross-sectional view of the socket connector and plug connector after they are plugged in.

[0025] Figure 11 draw Figure 8 Cross-sectional schematic diagram of part 11-11.

[0026] Figure 12 draw Figure 11 A cross-sectional view of the socket connector and plug connector after they are plugged in.

[0027] Figure 13 Based on some embodiments, a schematic diagram of the appearance of the socket terminals and plug terminals before they are connected is drawn.

[0028] Figure 14 Based on some embodiments, a schematic diagram of the appearance after the socket terminals and plug terminals are connected is drawn.

[0029] Symbol Explanation

[0030] 1: Socket connector

[0031] 11: docking seat

[0032] 110: Terminal slot

[0033] 1101: First concave part

[0034] 1102: Second recess

[0035] 1103:Third recess

[0036] 112: Guide groove

[0037] 114: First snap groove

[0038] 12: Socket terminals

[0039] 121: Docking Section

[0040] 1210: Plug-in Channel

[0041] 1211: First board

[0042] 1212: Second board

[0043] 1213: Third Board

[0044] 122: Clamping Arm

[0045] 123: baffle

[0046] 14: First fastener

[0047] 2: Plug Connector

[0048] 21: Fixed base

[0049] 210: Terminal slot

[0050] 212: Guide post

[0051] 2121: Guide ramp

[0052] 214: Second snap groove

[0053] 22: Plug terminals

[0054] 221: Connecting part

[0055] 222: Welding section

[0056] 24: Second fastener

[0057] X: First axis

[0058] Y: Second axis

[0059] Z: Third axis. Detailed Implementation

[0060] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram showing the front appearance of the socket connector 1 and the plug connector 2. Figure 2 This is a schematic diagram showing the rear views of the receptacle connector 1 and the plug connector 2. The board-to-board connector assembly includes a receptacle connector 1 and a plug connector 2. The receptacle connector 1 is mounted on one circuit board, and the plug connector 2 is mounted on another circuit board. This board-to-board connector assembly is used in board-to-board (BTB) connectors. The receptacle connector 1 includes a mating base 11 and multiple receptacle terminals 12. The plug connector 2 includes a mounting base 21 and multiple plug terminals 22.

[0061] The socket connector 1 includes a mating base 11 and a plurality of socket terminals 12 disposed on the mating base 11. The mating base 11 has a plurality of terminal slots 110, and each socket terminal 12 has a mating portion 121 that matches the terminal slot 110 of the mating base 11 and clamping arms 122 extending opposite to each other from both sides of each mating portion 121. The plug connector 2 includes a fixing base 21, which has a plurality of terminal slots 210. The plug connector 2 includes a plurality of plug terminals 22 disposed on each terminal slot 210 of the fixing base 21, and each plug terminal 22 includes a connecting portion 221 protruding from one side of the fixing base 21. The number of the plurality of socket terminals 12 is 18, and the number of the plurality of plug terminals 22 is 18.

[0062] When the plug connector 2 is inserted into the socket connector 1, the fixing seat 21 of the plug connector 2 mates with the mating seat 11 of the socket connector 1, so that each connecting part 221 of each plug terminal 22 contacts the inner side of each clamp arm 122 of each socket terminal 12.

[0063] Reference Figure 1 and Figure 2 The mating base 11 of the socket connector 1 is a long rectangular plastic body. The long side of the mating base 11 extends along the first axis X direction, the short side of the mating base 11 extends along the third axis Z direction, and the height of the mating base 11 extends along the second axis Y direction. When viewed along the first axis X direction, the mating base 11 has a roughly convex shape rotated 180 degrees. The fixing base 21 of the plug connector 2 is a long rectangular plastic body. The long side of the fixing base 21 extends along the first axis X direction, the short side of the mating base 11 extends along the third axis Z direction, and the height of the fixing base 21 extends along the second axis Y direction. When viewed along the first axis X direction, the fixing base 21 has a roughly convex shape.

[0064] Please see Figure 3 and Figure 4 , Figure 3 This is an exploded view of the front of the socket connector 1. Figure 4 This is a partial external view of the socket connector 1. In some embodiments, the socket connector 1 has a first recess 1101, a second recess 1102, and a third recess 1103 located on the inner wall surfaces of each terminal slot 110 and adjacent to each other. Each terminal slot 110 is a through hole that extends from one side of the mating seat 11 to the other side. The first recess 1101 is disposed along the first axis X direction on the corresponding inner wall surface inside the terminal slot 110. The second recess 1102 is disposed along the third axis Z direction on the corresponding inner wall surface inside the terminal slot 110. The third recess 1103 is disposed along the first axis X direction on the corresponding inner wall surface inside the terminal slot 110. The second recess 1102 and the third recess 1103 are parallel, and the first recess 1101 is located between the second recess 1102 and the third recess 1103.

[0065] Please see Figure 3 and Figure 4In some embodiments, the mating portion 121 of each socket terminal 12 includes a first plate 1211 and a second plate 1212 and a third plate 1213 located on both sides of the first plate 1211. The first plate 1211 is arranged along the first axis X direction, the second plate 1212 is arranged along the third axis Z direction, and the third plate 1213 is arranged along the first axis X direction. The second plate 1212 and the third plate 1213 are parallel, and the first plate 1211 is located between the second plate 1212 and the third plate 1213. Viewed from the second axis Y direction, the first plate 1211, the second plate 1212, and the third plate 1213 generally have a U-shaped shape. Furthermore, the first plate 1211 and the second plate 1212, and the first plate 1211 and the third plate 1213 are substantially perpendicular to each other. The first plate 1211, the second plate 1212, and the third plate 1213 have insertion channels 1210 formed on their respective inner sides, and the insertion channels 1210 are correspondingly connected to the terminal slot 110.

[0066] Please see Figure 3 and Figure 4 In some embodiments, each clamping arm 122 of each socket terminal 12 extends outward from the side ends of each second plate 1212 and each third plate 1213, and each clamping arm 122 is arranged to extend obliquely towards each other, with each clamping arm 122 having a curved end. When each socket terminal 12 is installed with each terminal slot 110, the first plate 1211 is fixed in the first recess 1101 corresponding to the first recess 1101, the second plate 1212 is fixed in the second recess 1102 corresponding to the second recess 1102, and the third plate 1213 is fixed in the third recess 1103 corresponding to the third recess 1103.

[0067] Please see Figure 3 and Figure 5 , Figure 5 This is an exploded view of the rear of the socket connector 1. In some embodiments, the socket connector 1 includes a plurality of first retaining members 14, such as... Figure 3 Viewed from the third axis Z direction, each of the first fixing members 14 has a U-shaped shape rotated 180 degrees. When each of the first fixing members 14 is aligned with the first snap grooves 114 on both sides of the mounting dock 11, each of the first fixing members 14 is engaged with the first snap grooves 114 on both sides of the mounting dock 11.

[0068] Please see Figure 6 and Figure 7 , Figure 6 This is an exploded view of the front of plug connector 2. Figure 7 This is an exploded view of the back of the plug connector 2. In some embodiments, the plug connector 2 includes a plurality of second retaining members 24, such as... Figure 6Viewed from the third axis Z direction, each of the second fasteners 24 has a U-shaped appearance rotated 180 degrees. When each of the second fasteners 24 is aligned with the second latches 214 on both sides of the mounting base 21, each of the second fasteners 24 engages with the second latches 214 on both sides of the mounting base 21.

[0069] Please see Figure 6 and Figure 7 In some embodiments, each plug terminal 22 includes a solder portion 222 extending outward from the connecting portion 221 and exposed on the other side of the mounting base 21 (the side away from the guide post 212). The connecting portion 221 and the solder portion 222 are substantially perpendicular, and when viewed from the first axis X direction, the connecting portion 221 and the solder portion 222 generally form an L-shape. When each plug terminal 22 is installed in the terminal slot 210 of the mounting base 21, the solder portion 222 of each plug terminal 22 is flush with the other side of the mounting base 21, so that the extending direction of each solder portion 222 is at the same level as the other side of the mounting base 21 (e.g., ...). Figure 2 (As shown).

[0070] Please see Figures 8 to 12 , Figure 8 This is a top view of the socket connector 1 and the plug connector 2. Figure 9 draw Figure 8 The cross-sectional view of part 9-9 shows the state of the socket connector 1 and the plug connector 2 before they are inserted. Figure 10 For drawing Figure 9 This is a cross-sectional view showing the state of socket connector 1 and plug connector 2 after they are plugged in. Figure 11 draw Figure 8 Cross-sectional view of section 11-11. Figure 12 draw Figure 11 This is a cross-sectional view of the socket connector 1 and plug connector 2 after they are inserted, showing the state after insertion and the state before insertion. In some embodiments, the socket connector 1 has guide grooves 112 on both sides of the mating seat 11. The guide grooves 112 are through holes and extend from one side of the mating seat 11 to the other side. The plug connector 2 has guide posts 212 protruding from both sides of the fixing seat 21. Viewed from the second axis Y direction, the guide posts 212 are generally Y-shaped, and the overall structure of the guide posts 212 is generally tapered. The top of the guide posts 212 has multiple guide ramps 2121, each guide ramp 2121 being disposed at the end of the guide post 212 away from the fixing seat 21. The top of the guide posts 212 is higher than the connection portion 221 of the plug terminal 22. When each guide post 212 is inserted into each guide groove 112, each guide post 212 corresponds to each guide groove 112 to guide the insertion, so that even when the plug connector 2 and the socket connector 1 are inserted at an angle, they can be effectively guided into place.

[0071] Please see Figure 13 and Figure 14 , Figure 13 This is a schematic diagram showing the appearance of the socket terminal 12 and the plug terminal 22 before they are connected. Figure 14 A schematic diagram showing the appearance of the socket terminal 12 and the plug terminal 22 after they are connected. In some embodiments, the mating portion 121 of each socket terminal 12 includes a baffle 123 extending outward from the side end of the first plate 1211, and the baffle 123 is located on the side of each clamping arm 122. When the connecting portion 221 of the plug terminal 22 mates with the mating portion 121 of the socket terminal 12, the connecting portion 221 is guided by the curved structure at the end of each clamping arm 122, so that the connecting portion 221 is inserted into the insertion channel 1210 through the opening between each clamping arm 122 and the baffle 123. Then, after the connecting portion 221 of the plug terminal 22 is inserted into place, the top section of the connecting portion 221 is entirely located within the first plate 1211, the second plate 1212, and the third plate 1213. By matching the shape of the mating portion 121 of each socket terminal 12 with each clamping arm 122 to the connecting portion 221 of each plug terminal 22, the stability of the mating between the socket connector 1 and the plug connector 2 is ensured.

[0072] According to some embodiments, by matching the shape of the mating portion of each socket terminal to the shape of each terminal slot, each mating portion is stably fixed in each terminal slot when each socket terminal is installed in each terminal slot. Furthermore, according to some embodiments, by matching the shape of the mating portion of each socket terminal with the shape of the connecting portion of each plug terminal to the shape of each clamp arm, the stability of the mating between the socket connector and the plug connector is ensured.

Claims

1. A board-to-board connector assembly characterized by : A receptacle connector includes a receptacle and a plurality of receptacle terminals disposed in the receptacle, the receptacle having a plurality of terminal slots, each of the receptacle terminals having a mating portion matching each of the terminal slots and a clamping arm extending from both sides of each of the mating portions; and A plug connector includes a housing mating with the receptacle, the housing having a plurality of terminal slots, the plug connector including a plurality of plug terminals disposed in each of the terminal slots, each of the plug terminals including a connecting portion protruding from a face of the housing and configured to contact an inner side of each of the clamping arms.

2. The board-to-board connector assembly according to claim 1, characterized by The receptacle connector has a guide slot on both sides of the receptacle, the plug connector has a guide post protruding from both sides of the housing, each of the guide posts corresponding to each of the guide slots.

3. The board-to-board connector assembly according to claim 2, characterized by Each of the guide posts includes a plurality of guide inclined surfaces, each of the guide inclined surfaces being disposed at an end away from the housing.

4. The board-to-board connector assembly according to claim 2, characterized by The receptacle connector has a first recess, a second recess and a third recess on inner wall surfaces of each of the terminal slots and adjacent to each other.

5. The board-to-board connector assembly according to claim 4, characterized by The mating portion of each of the receptacle terminals includes a first plate and a second plate and a third plate on both sides of the first plate, each of the clamping arms extending outwardly from a side end of each of the second plate and each of the third plate, the first plate corresponding to the first recess, the second plate corresponding to the second recess, and the third plate corresponding to the third recess.

6. The board-to-board connector assembly according to claim 5, characterized by The first plate and the second plate and the first plate and the third plate are perpendicular to each other, and the first plate, the second plate and the third plate form a plug-in passage on opposite inner sides.

7. The board-to-board connector assembly according to claim 5, characterized by The mating portion of each of the receptacle terminals includes a baffle plate extending outwardly from a side end of the first plate, the baffle plate being located at a side of each of the clamping arms.

8. The board-to-board connector assembly according to claim 5, characterized by The receptacle connector includes a plurality of first fixing members, each of the first fixing members being combined with both sides of the receptacle.

9. The board-to-board connector assembly according to claim 2, characterized by Each of the plug terminals includes a soldering portion extending outwardly from the connecting portion and exposed to another face of the housing, the connecting portion and the soldering portion being substantially perpendicular to each other, and the soldering portion extending in a same horizontal direction as the other face of the housing.

10. The board-to-board connector assembly according to claim 9, characterized by The plug connector includes a plurality of second fixing members, each of the second fixing members being combined with both sides of the housing.

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