Board-to-board socket connector and floating board-to-board connector

Abstract

This utility model relates to a floating board-to-board connector, comprising a board-to-board socket connector and a mating board-to-board plug connector. The board-to-board socket connector includes a first base, a first outer shell covering the first base, and a floating movable seat located within the first base. The board-to-board plug connector includes a second base and a second outer shell covering the second base. When the board-to-board socket connector and the board-to-board plug connector are mated, the spring contacts of the first outer shell engage with the second outer shell. Each spring guides the insertion of the second outer shell and also provides signal shielding and grounding.

Description

Technical Field

[0001] This invention relates to a board-to-board connector, and more particularly to a board-to-board socket connector and a floating board-to-board connector. Background Technology

[0002] Board-to-board connectors are mainly used to enable corresponding mechanical devices to establish electrical connections using their respective circuit boards, thereby allowing electrical signals and power to be transmitted and conducted.

[0003] Because equipment in aerospace environments must withstand severe vibrations, traditional fixed connectors cannot guarantee long-term stable connections. Therefore, a floating design is needed to allow the connector body to move slightly in various directions to absorb deformation and displacement, thereby reducing the risk of equipment damage and ensuring connection stability and system reliability. Currently, typical board-to-board connectors are encased in a single-sided metal shell, resulting in poor shielding effectiveness. Summary of the Invention

[0004] In view of the above, a preferred embodiment of this invention provides a board-to-board receptacle connector including a first base, a movable seat body, at least one first housing, a plurality of receptacle signal terminals, and a plurality of receptacle power terminals. The first base includes two first outer sidewalls and two second outer sidewalls, with each side of the first outer sidewalls connected to each side of the second second outer sidewalls. The first base has a movable space between the two first outer sidewalls and the two second outer sidewalls. The two ends of the first base include a mating side and a soldering side, respectively. The movable seat body is located in the movable space and includes two first inner sidewalls and two second inner sidewalls, with each side of the first inner sidewalls connected to each side of the second second inner sidewalls. The movable seat body has a receiving groove between the two first inner sidewalls and the two second inner sidewalls. At least one first housing covers the two first outer sidewalls and the two second outer sidewalls. The at least one first housing includes a plurality of spring contacts located on the mating side, each spring contact extending from the two first outer sidewalls, the two second outer sidewalls, the two first inner sidewalls, and the two second inner sidewalls to the receiving groove. Multiple socket signal terminals are located in the movable space. Each socket signal terminal has two ends connected to the first base and the movable base, respectively, and one end of each socket signal terminal extends into the receiving slot. Multiple socket power terminals are located in the movable space and are arranged on both sides of each socket signal terminal. Each socket power terminal has two ends connected to the first base and the movable base, respectively, and one end of each socket power terminal extends into the receiving slot.

[0005] Preferably, at least one first housing includes two first side plates with long sides and two second side plates with short sides, the two first side plates covering the two first outer side walls, the second side plates covering the two second outer side walls, and each spring plate extending outward from one end of each first side plate and each second side plate.

[0006] Preferably, each spring includes a bend, a spring arm, and a contact portion extending in sequence, with each bend corresponding to the side ends of the two first outer side walls and the two second outer side walls, and each contact portion extending from the spring arm to the receiving groove.

[0007] Preferably, the first base has a plurality of first recesses located at the two first outer sidewalls and a plurality of second recesses located at the two second outer sidewalls.

[0008] Preferably, at least one of the first outer shells is a sheet bent into a rectangular structure, and the rectangular structure has a joint groove.

[0009] Preferably, at least one first outer shell is a rectangular structure composed of multiple sheets.

[0010] Preferably, each sheet includes a first sheet and a second sheet, the first sheet and the second sheet are connected to form an L-shaped plate, each first sheet covers each first outer side wall, and each second sheet covers each second outer side wall.

[0011] Preferably, at least one first housing includes a plurality of welding feet extending from a first side plate and a second side plate. The plurality of welding feet include a plurality of first joints and a plurality of second joints. Each first joint is disposed on two first side plates, and each second joint is disposed on two second side plates.

[0012] Preferably, at least one first housing includes a plurality of fixing pieces respectively disposed on two first side plates, and the first base has a plurality of first protrusions located on the outer side walls of the two first sides and a first slot located between each first protrusion, and each first pin and each fixing piece are respectively engaged in each first slot.

[0013] Preferably, the first base has a plurality of second protrusions located on the second outer sidewalls and a second slot located between each second protrusion, and each second pin is respectively engaged in each second slot.

[0014] Preferably, the movable seat includes a plurality of first grooves located on the two first inner sidewalls and the two second inner sidewalls, and each spring pair is located in each of the first grooves.

[0015] Preferably, the movable base includes a tongue plate located between the two first inner sidewalls and the two second inner sidewalls, and the tongue plate has a plurality of first terminal slots on both sides for providing one end of each socket signal terminal.

[0016] Preferably, each socket power terminal includes a contact section, a meandering section, and a welding section exposed on the first base located on the movable base, with the meandering section located between the contact section and the welding section.

[0017] Preferably, each socket signal terminal includes a contact portion, a bend portion, and a solder portion exposed on the first base located on the movable base, with the bend portion located between the contact portion and the solder portion.

[0018] In one embodiment, a floating board-to-board connector is also provided, including a board-to-board socket connector and a board-to-board plug connector. The board-to-board socket connector includes a first base, a movable seat body, at least one first housing, a plurality of socket signal terminals, and a plurality of socket power terminals. The first base includes two first outer side walls and two second outer side walls, with each side of the two first outer side walls respectively connected to each side of the two second outer side walls. The first base has a movable space between the two first outer side walls and the two second outer side walls. The two ends of the first base respectively include a mating side and a soldering side. The movable seat body is located in the movable space. The movable seat body includes two first inner side walls and two second inner side walls, with each side of the two first inner side walls respectively connected to each side of the two second inner side walls. The movable seat body has a receiving groove between the two first inner side walls and the two second inner side walls. At least one first housing covers two first outer side walls and two second outer side walls. The at least one first housing includes multiple spring contacts located on the mating side. Each spring contact extends from the two first outer side walls, two second outer side walls, two first inner side walls, and two second inner side walls to a receiving groove. Multiple socket signal terminals are located in the movable space. Each socket signal terminal has two ends connected to a first base and a movable base, and one end of each socket signal terminal extends to the receiving groove. Multiple socket power terminals are located in the movable space and are disposed on both sides of each socket signal terminal. Each socket power terminal has two ends connected to the first base and the movable base, and one end of each socket power terminal extends to the receiving groove. The board-to-board plug connector includes a second base, a second housing, multiple plug signal terminals, and multiple plug power terminals. A second base is inserted into a receiving groove. The second base includes two first outer side walls and two second outer side walls. Two sides of the two first outer side walls are respectively connected to two sides of the two second outer side walls. The second base has a mating space between the two first outer side walls and the two second outer side walls. The two ends of the second base respectively include a mating side and a welding side. Two housings cover the two first outer side walls and the two second outer side walls of the second base. The second housings are adapted to be inserted into the receiving groove and contact each spring contact. Multiple plug signal terminals are located on the second base. One end of each plug signal terminal is respectively disposed on the inner side of the two first outer side walls and the two second outer side walls, contacting one end of each socket signal terminal. The other end of each plug signal terminal is exposed outside the second base. Multiple plug power terminals are located on the second base and disposed on both sides of each plug signal terminal. One end of each plug power terminal is respectively disposed on the inner side of the two first outer side walls and the two second outer side walls, contacting one end of each socket power terminal. The other end of each plug power terminal is exposed outside the second base.

[0019] Preferably, the second base has a plurality of locking blocks located on the two first outer side walls and the two second outer side walls, and a limiting groove located between each locking block, and the second outer shell is locked in each limiting groove.

[0020] Preferably, the second base is provided with multiple positioning grooves that connect to the limiting grooves at both ends, and the second outer shell has multiple feet at both ends, which are exposed in each positioning groove.

[0021] Preferably, the two side walls of the second base have recesses located between the two feet, and the locking block is engaged in the recesses, with each foot being engaged in its respective positioning groove.

[0022] Preferably, the plug power terminal includes a contact section located in the mating space, a connecting section fixed to the second base, and a welding section exposed in the second base, with the connecting section located between the contact section and the welding section.

[0023] Preferably, the plug signal terminal includes a contact portion located in the mating space, a connecting portion fixed to the second base, and a soldering portion exposed on the second base, with the connecting portion located between the contact portion and the soldering portion.

[0024] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: A first housing with multiple spring contacts is provided outside the first base of the board-to-board socket connector, and a second housing is provided outside the second base of the board-to-board plug connector. During the mating process of the board-to-board plug connector and the board-to-board socket connector, each spring contactes the second housing and limits the board-to-board plug connector. When the second housing of the board-to-board plug connector is inserted into the receiving groove of the movable seat, each spring guides the insertion of the second housing, and also has the functions of shielding signals and grounding. Attached Figure Description

[0025] Figure 1 The illustration shows a schematic diagram of the appearance of a floating board-to-board connector according to one embodiment; Figure 2 Draw Figure 1 Schematic diagram of the cross section marked 2-2; Figure 3 An exploded front view of a floating board-to-board connector is shown according to one embodiment. Figure 4 An exploded view of the back of a floating board-to-board connector is shown according to one embodiment. Figure 5 An exploded view of a board-to-board socket connector is shown according to one embodiment; Figure 6 The illustration shows a schematic diagram of the appearance of four first housings according to one embodiment; Figure 7 The illustration shows a schematic diagram of the appearance of a first housing according to one embodiment; Figure 8 An exploded view of a board-to-board plug connector according to one embodiment is shown. Figure 9 The illustration shows a side view of the socket signal terminals according to one embodiment; Figure 10 The illustration shows a schematic diagram of the appearance of the plug signal terminals according to one embodiment; Figure 11The illustration shows a schematic diagram of the appearance of the power terminal of a socket according to one embodiment; Figure 12 The illustration shows a schematic diagram of the appearance of the power terminals of a plug according to one embodiment; Figure 13 The illustration shows a side cross-sectional view of a board-to-board socket connector according to one embodiment, wherein the first pin and the second pin are soldered to the circuit board using surface mount technology. Figure 14 The illustration shows a side cross-sectional view of a board-to-board socket connector according to one embodiment, wherein the first pin and the second pin are soldered onto the circuit board using a dual in-line package. Figure 15 The illustration shows a side cross-sectional view of a board-to-board plug connector according to one embodiment, wherein the multiple plug signal terminals may be blank-type terminals; Figure 16 The illustration shows a side cross-sectional view of a board-to-board plug connector according to one embodiment, wherein the multiple plug signal terminals may be bent terminals; Figure 17 Draw Figure 1 The cross-sectional view marked 17-17 shows that the first and second pins are soldered to the circuit board using surface mount technology; and Figure 18 Drawing with Figure 17 A cross-sectional view from which the first and second pins are soldered onto the circuit board using dual in-line packages.

[0026] Symbol Explanation 1 / 1': Socket connector 10: First Foundation 101: First lateral wall 1011: First bump 1012: First Card Slot 102: Second lateral wall 1021: Second bump 1022: Second Card Slot 103: Activity Space 104 / 104' / 104'': First outer shell 104A: First film 104B: Second film 1041: First side plate 1042: Second side plate 1043: Fixing plate 1045: Joint groove 105: Docking side 106: Welding side 1071: First concave part 1072: Second recess 11: Movable base 111: First inner wall 112: Second inner wall 113: Receiving slot 114: First Groove 115: Tongue plate 116: First terminal slot 12: Shrapnel 121: Bending section 122: Spinning Arm 123:Contact Department 13: Solder foot 131: First foot connection 132: Second foot 14 / 14': Socket signal terminal 141:Contact Department 142: Winding section 143 / 143': Welding section 15: Socket power terminals 151: Contact section 152: Winding Section 153: Welding Section 2 / 2': Plug connector 20: Second base 201: First lateral wall 202: Second lateral wall 203: Docking Space 204: Second outer shell 205: Dock side 206: Welding side 207: Card Block 208: Limiting groove 209: Positioning groove 22: Foot Connection 23: Notch 24 / 24': Plug signal terminal 241:Contact Department 242: Connecting part 243: Welding section 25: Plug power terminals 251: Contact section 252: Connecting segment 253: Welding section X: First axis Y: Second axis Z: Third axis. Detailed Implementation

[0027] To provide a clearer explanation of this case, in the schematic diagram provided, the first axis X is the X-axis of the three-dimensional coordinate system, the second axis Y is the Y-axis of the three-dimensional coordinate system, and the third axis Z is the Z-axis of the three-dimensional coordinate system. In the following embodiments, the terminology regarding connections, unless specifically stated as electrical connections, can refer to physical connections, or direct or indirect connections between physical components.

[0028] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the appearance of a floating board-to-board connector. Figure 2 This is a cross-sectional schematic diagram. Figure 3 This is an exploded view of the front of a floating board-to-board connector. Figure 4 This is an exploded view of the back of a floating board-to-board connector. Floating board-to-board connectors are suitable for use in electronic equipment connections in the aerospace field. The components of a floating board-to-board connector include a receptacle connector 1 and a plug connector 2, which are each mounted on a circuit board and are classified as board-to-board (BTB) electrical connectors.

[0029] Please see Figure 5 , Figure 5 This is an exploded view of the board-to-board socket connector 1. The board-to-board socket connector 1 includes a first base 10, a movable seat 11, and housings (the number of housings is as follows). Figure 7 For a first outer shell 104'', such as Figure 6 For four first shells 104' or as Figure 5 It consists of two first housings 104, multiple socket signal terminals 14, and multiple socket power terminals 15.

[0030] Please see Figure 5 The first base 10 includes two first outer sidewalls 101 and two second outer sidewalls 102. The two first outer sidewalls 101 are arranged along a first axis X direction, and the two second outer sidewalls 102 are arranged along a second axis Y direction. The two sides of the two first outer sidewalls 101 are respectively connected to the two sides of the two second outer sidewalls 102. The first base 10 has a movable space 103 located between the two first outer sidewalls 101 and the two second outer sidewalls 102. The two ends of the first base 10 respectively include a mating side 105 and a welding side 106. In some embodiments, the first base 10 has a plurality of first recesses 1071 located at the side ends of the two first outer sidewalls 101 and a plurality of second recesses 1072 located at the side ends of the two second outer sidewalls 102.

[0031] Please see Figure 5The movable seat 11 is located in the active space 103. The movable seat 11 includes two first inner sidewalls 111 and two second inner sidewalls 112. The two first inner sidewalls 111 are arranged along the first axis X direction, and the two second inner sidewalls 112 are arranged along the second axis Y direction. The two sides of the two first inner sidewalls 111 are respectively connected to the two sides of the two second inner sidewalls 112. The movable seat 11 has a receiving groove 113 located between the two first inner sidewalls 111 and the two second inner sidewalls 112.

[0032] Please see Figures 5 to 7 , Figure 6 This is a schematic diagram of the appearance of the four first outer shells 104'. Figure 7 This is a schematic diagram of the appearance of the first outer shell 104''. Figure 7 The first outer shell 104'' is a single sheet material bent into a rectangular structure, and the rectangular structure has a joint groove 1045, which is a dovetail-shaped slot.

[0033] Please see Figures 5 to 7 The first outer shells 104, 104', and 104'' cover the two first outer side walls 101 and the two second outer side walls 102. The first outer shells 104, 104', and 104'' include a plurality of spring pieces 12 located on the mating side 105. Each spring piece 12 extends from the two first outer side walls 101, the two second outer side walls 102, the two first inner side walls 111, and the two second inner side walls 112 to the receiving groove 113. Each spring piece 12 passes through the first recess 1071 and the second recess 1072 (e.g., ...). Figure 3 (As shown). In some embodiments, each spring piece 12 includes a bent portion 121, a spring arm 122, and a contact portion 123 extending in sequence. Each bent portion 121 corresponds to the side ends of the two first outer sidewalls 101 and the two second outer sidewalls 102, and each contact portion 123 extends from each spring arm 122 to the receiving groove 113. The movable seat 11 includes a plurality of first grooves 114 located on the two first inner sidewalls 111 and the two second inner sidewalls 112, and each spring piece 12 is located in each of the first grooves 114.

[0034] The first outer shell 104, 104', 104'' includes two first side plates 1041 with long sides and two second side plates 1042 with short sides. The two first side plates 1041 are arranged along the first axis X direction, and the two second side plates 1042 are arranged along the second axis Y direction. The two first side plates 1041 cover the two first outer side walls 101, and the two second side plates 1042 cover the two second outer side walls 102. Each spring piece 12 extends outward from one end of each first side plate 1041 and each second side plate 1042.

[0035] Please see Figures 5 to 7The first side plate 1041 may be provided with two spring clips 12, but is not limited thereto. In some embodiments, the first side plate 1041 may be provided with one spring clip 12 or three or more spring clips 12. Figure 5 The second side plate 1042 shown may be provided with one spring tab 12, but is not limited thereto. In some embodiments, the second side plate 1042 may be provided with multiple spring tabs 12.

[0036] Please see Figure 5 In some embodiments, the first housing 104 includes a plurality of welding feet 13 extending from the first side plate 1041 and the second side plate 1042. The plurality of welding feet 13 include a plurality of first connectors 131 and a plurality of second connectors 132. Each first connector 131 is respectively disposed on the two first side plates 1041, and each second connector 132 is respectively disposed on the two second side plates 1042. The first base 10 has a plurality of second protrusions 1021 located on the two second outer side walls 102 and a second slot 1022 located between each second protrusion 1021. Each second connector 132 is respectively engaged in each second slot 1022.

[0037] Please see Figure 5 The first housing 104 has four solder pads 13 distributed on its L-shaped long side plate 1041 and short side plate 1042. When multiple solder pads 13 are soldered to the circuit board, the soldering strength is increased. The first pin 131 and the second pin 132 can be soldered to the circuit board using surface-mount technology (SMT) or dual in-line package (DIP) methods (e.g., ...). Figure 13 , Figure 14 (As shown).

[0038] Please see Figure 5 In some embodiments, the first housing 104 includes a plurality of fixing pieces 1043, respectively disposed on the two first side plates 1041. The first base 10 has a plurality of first protrusions 1011 located on the two first outer side walls 101 and a first slot 1012 located between each of the first protrusions 1011. Each first pin 131 and each fixing piece 1043 are respectively engaged in each of the first slots 1012. Each fixing piece 1043 is a straight piece with barbs protruding on both sides, which facilitates engagement in the first slot 1012, and has the advantages of simple assembly and reducing the width of the first base 10. Each fixing piece 1043 is a straight piece extending along the third axis Z direction, but is not limited thereto. In some embodiments, each fixing piece 1043 may be a stepped piece, i.e., a "-shaped" piece, and each fixing piece 1043 protrudes outward along the second axis Y direction and then extends downward along the third axis Z direction.

[0039] Please see Figure 5 and Figure 6In some embodiments, the first outer shells 104 and 104' are composed of multiple sheets (the number is not limited) forming a rectangular frame. Each sheet includes a first sheet 104A and a second sheet 104B, which are connected to form an L-shaped plate. The first sheet 104A and the second sheet 104B may be of equal or unequal length. Each first sheet 104A covers each first outer side wall 101, and each second sheet 104B covers each second outer side wall 102. The two L-shaped first outer shells 104 and 104' form a rectangular iron shell. There are a total of six spring contacts 12 on the first sheet 104A and the second sheet 104B, which contact the second outer shell 204 (iron shell) of the plug connector 2. They serve to guide the insertion in both the length and width directions, and also have the functions of shielding signals and grounding.

[0040] Please see Figure 5 and Figure 6 Each of the first housings 104' of the board-to-board socket connector 1 is bent into an L-shape, and each of the first housings 104' partially surrounds the outside of the first base 10 (e.g., Figure 3 (As shown). The second housing 204 of the board-to-board plug connector 2 is a single rectangular frame, and the second housing 204 is a fully enclosed type surrounding the exterior of the second base 20 (as shown). Figure 4 As shown), after board-to-board socket connector 1 and board-to-board plug connector 2 are mated, they can achieve double-layer protection through their respective shells. Moreover, the area of ​​each first shell 104' and second shell 204 is a whole piece structure, which can improve the shielding and grounding effect.

[0041] Please see Figure 3 and Figure 5 Multiple socket signal terminals 14 are located in the activity space 103 (e.g., Figure 13 As shown), each socket signal terminal 14 is connected at both ends to the first base 10 and the movable base 11, with one end of each socket signal terminal 14 extending into the receiving groove 113. The movable base 11 includes a tongue plate 115 located between two first inner sidewalls 111 and two second inner sidewalls 112. The tongue plate 115 has multiple first terminal slots 116 on both sides for accommodating one end of each socket signal terminal 14. The multiple socket signal terminals 14 are obtained through blanking type terminals (such as...). Figure 9 As shown), a terminal structure with increased strength is formed. The structural strength of the blank-formed terminal is better than that of the stamped terminal, but this is not a limitation. In some embodiments, the plurality of socket signal terminals 14 can be bent terminals, providing better elasticity than blank-formed terminals. The number of plurality of socket signal terminals 14 is 16. The plurality of socket signal terminals 14 includes a contact portion 141, a bend portion 142 located on the movable base 11, and a solder portion 143 exposed on the first base 10 (e.g., Figure 2 As shown), the meandering part 142 is located between the contact part 141 and the welding part 143.

[0042] Please see Figure 3 and Figure 5 Multiple socket power terminals 15 are located in the movable space 103 and are positioned on both sides of each socket signal terminal 14. Each socket power terminal 15 has two ends connected to the first base 10 and the movable seat 11, respectively, and one end of each socket power terminal 15 extends into the receiving groove 113. The number of socket power terminals 15 is four. Each socket power terminal 15 is a bent terminal (e.g.,...). Figure 11 (as shown), but not limited thereto. In some embodiments, each socket power terminal 15 is a flat terminal.

[0043] Please see Figure 3 and Figure 5 Each socket power terminal 15 includes a contact section 151, a meandering section 152 located on the movable base 11, and a welding section 153 exposed on the first base 10 (e.g., Figure 11 As shown), the meandering section 152 is located between the contact section 151 and the welding section 153.

[0044] Reference Figure 2 When the components of the socket connector 1 are assembled, the first base 10 and the movable body 11 of the board-to-board socket connector 1 do not contact each other. The first base 10 and the movable body 11 are connected by multiple socket signal terminals 14 and multiple socket power terminals 15. The movable body 11 is located in the center of the first base 10 and is in a floating state.

[0045] Please see Figure 3 and Figure 8 The board-to-board plug connector 2 includes a second base 20, a second housing 204, multiple plug signal terminals 24, and multiple plug power terminals 25.

[0046] Please see Figure 3 , Figure 4 and Figure 8 The second base 20 is inserted into the receiving groove 113. The second base 20 includes two first outer side walls 201 and two second outer side walls 202. The two first outer side walls 201 are arranged along the first axis X direction, and the two second outer side walls 202 are arranged along the second axis Y direction. The two sides of the two first outer side walls 201 are respectively connected to the two sides of the two second outer side walls 202. The second base 20 has a mating space 203 between the two first outer side walls 201 and the two second outer side walls 202 (e.g., ...). Figure 15 As shown), the two ends of the second base 20 respectively include a mating side 205 and a welding side 206 (as shown). Figure 8 (As shown).

[0047] Please see Figure 3 , Figure 4 and Figure 8In some embodiments, the second base 20 has a plurality of locking blocks 207 located on the two first outer side walls 201 and the two second outer side walls 202, and a limiting groove 208 located between each locking block 207. The second base 20 has a plurality of positioning grooves 209 at both ends that communicate with the limiting grooves 208.

[0048] Please see Figure 3 , Figure 4 and Figure 8 The second outer shell 204 covers the two first outer sidewalls 201 and two second outer sidewalls 202 of the second base 20. The second outer shell 204 is adapted to insert into the receiving groove 113 and contact each spring piece 12. In some embodiments, the second outer shell 204 is engaged with each limiting groove 208 of the second base 20. The second outer shell 204 has a plurality of pins 22 at both ends, which are exposed in each positioning groove 209 of the second base 20 (e.g., Figure 3 (As shown). The second base 20 has recesses 23 on both sides of its side walls, located between the two feet 22. One of the three locking blocks 207 is locked in the recess 23, and each foot 22 is locked into its respective positioning groove 209.

[0049] Please see Figure 3 , Figure 4 and Figure 8 Multiple plug signal terminals 24 are located on the second base 20. One end of each plug signal terminal 24 is respectively disposed on the inner side of the two first outer side walls 201 and the two second outer side walls 202 and contacts one end of each socket signal terminal 14. The other end of each plug signal terminal 24 is exposed on the second base 20 (e.g., Figure 15 (As shown). Multiple plug signal terminals 24 are through blanking type terminals (such as... Figure 10 As shown), a terminal structure with increased strength is made. The structural strength of a blank-formed terminal is better than that of a stamped terminal, but this is not a limitation. In some embodiments, the plurality of plug signal terminals 24' can be bent terminals (such as...). Figure 16 (As shown), it provides better elasticity than the blank-formed terminals. The number of multiple plug signal terminals 24' is 16.

[0050] The plug signal terminal 24 includes a contact section 241 located in the mating space 203, a connecting section 242 fixed to the second base 20, and a soldering section 243 exposed in the second base 20. The connecting section 242 is located between the contact section 241 and the soldering section 243.

[0051] Please see Figure 3 , Figure 4 and Figure 8Multiple plug power terminals 25 are located on the second base 20 and disposed on both sides of each plug signal terminal 24. One end of each plug power terminal 25 is disposed on the inner side of the two first outer side walls 201 and the two second outer side walls 202, respectively, and contacts one end of each socket power terminal 15. The other end of each plug power terminal 25 is exposed on the second base 20. The number of multiple plug power terminals 25 is four. Each plug power terminal 25 is a flat terminal (e.g., Figure 12 (as shown), but not limited thereto. In some embodiments, each plug power terminal 25 is a bent terminal.

[0052] The plug power terminal 25 includes a contact section 251 located in the mating space 203, a connecting section 252 fixed to the second base 20, and a welding section 253 exposed in the second base 20. The connecting section 252 is located between the contact section 251 and the welding section 253.

[0053] During the mating process of board-to-board plug connector 2 and board-to-board socket connector 1, such as Figure 2 , Figure 3 Each spring piece 12 of the first housing 104 contacts the second housing 204 in at least one direction of the first axis X and the second axis Y (length and width directions), thereby limiting the plate-to-plate plug connector 2. When the second housing 204 of the plate-to-plate plug connector 2 is inserted into the receiving slot 113 of the movable base 11, each spring piece 12 guides the insertion of the second housing 204, while also shielding signals and grounding. Furthermore, the movable base 11 has a certain offset (or floating amount) in the first axis X, the second axis Y, and the third axis Z. The offset distance in the first axis X, the second axis Y, and the third axis Z is ±0.5mm. Even if the plate-to-plate plug connector 2 and the plate-to-plate socket connector 1 are slightly misaligned during assembly and not fully aligned, they can be offset to the correct mating position for mating, improving the overall fit of the plate-to-plate plug connector 2 and the plate-to-plate socket connector 1, as well as the freedom of adjustable mating.

[0054] Please see Figure 13 In some embodiments, each of the first solder sections 143 of the board-to-board socket connector 1 is exposed on the bottom surface of the first housing 104. This is achieved when the board-to-board plug connector 2 and the board-to-board socket connector 1 are properly mated (e.g., ...). Figure 17 As shown), the distance between the solder portion 143 of the socket signal terminal 14 and the solder portion 243 of the plug signal terminal 24 along the third axis Z direction is approximately 7.2 mm.

[0055] Please see Figure 14In some embodiments, each first solder section 143' of the board-to-board receptacle connector 1' is exposed on the second protrusion 1021 and located in the middle of the side of the first housing 104, providing a circuit board for recessed engagement of each first solder section 143'. When the board-to-board plug connector 2' and the board-to-board receptacle connector 1' are properly mated (e.g....), Figure 18 As shown), the distance between the solder portion 143' of the socket signal terminal 14' and the solder portion 243 of the plug signal terminal 24 along the third axis Z direction is approximately 4 mm.

[0056] In summary, the board-to-board socket connector has a first housing with multiple spring contacts outside its first base, and the board-to-board plug connector has a second housing outside its second base. During the mating process between the board-to-board plug connector and the board-to-board socket connector, the spring contacts of the first housing contact the second housing and limit the board-to-board plug connector. When the second housing of the board-to-board plug connector is inserted into the receiving slot of the movable base, the spring contacts guide the insertion of the second housing, while also providing signal shielding and grounding functions.

Claims

1. A board-to-board socket connector, characterized in that: A first base includes two first outer side walls and two second outer side walls, with each side of the first outer side wall connected to each side of the second outer side wall. The first base has a movable space between each of the first outer side walls and each of the second outer side walls. Each end of the first base includes a mating side and a welding side. A movable seat is located in the active space. The movable seat includes two first inner sidewalls and two second inner sidewalls. The two sides of each first inner sidewall are respectively connected to the two sides of each second inner sidewall. The movable seat has an accommodating groove located between each first inner sidewall and each second inner sidewall. At least one first housing covers each of the first outer side walls and each of the second outer side walls. The at least one first housing includes a plurality of spring pieces located on the mating side. Each spring piece extends from each of the first outer side walls, each of the second outer side walls, each of the first inner side walls and each of the second inner side walls to the receiving groove. Multiple socket signal terminals are located in the active space. Each socket signal terminal has two ends connected to the first base and the movable seat, respectively, and one end of each socket signal terminal extends to the receiving groove. as well as Multiple socket power terminals are located in the movable space and are arranged on both sides of each socket signal terminal. The two ends of each socket power terminal are respectively connected to the first base and the movable base, and one end of each socket power terminal extends to the receiving groove.

2. The board-to-board receptacle connector according to claim 1, characterized by The at least one first outer shell includes two first side plates with a long side and two second side plates with a short side. Each first side plate covers each first outer side wall, and each second side plate covers each second outer side wall. Each spring plate extends outward from one end of each first side plate and each second side plate.

3. The board-to-board receptacle connector according to claim 2, characterized by Each of the spring pieces includes a bent portion, a spring arm, and a contact portion extending in sequence. Each bent portion corresponds to the side end of each of the first outer side wall and each of the second outer side wall, and each contact portion extends from each of the spring arms to the receiving groove.

4. The board-to-board receptacle connector according to claim 3, characterized by The first base has a plurality of first recesses located at each of the first outer sidewall ends and a plurality of second recesses located at each of the second outer sidewall ends.

5. The board-to-board receptacle connector according to claim 2, characterized by The at least one first outer shell is a sheet material bent into a rectangular structure, the rectangular structure having a joint groove.

6. The board-to-board receptacle connector according to claim 2, characterized by The at least one first outer shell is a rectangular structure composed of multiple sheets.

7. The board-to-board receptacle connector according to claim 6, characterized by Each of the aforementioned sheets includes a first sheet and a second sheet, the first sheet and the second sheet being connected to form an L-shaped plate, each of the first sheets covering each of the first outer side walls, and each of the second sheets covering each of the second outer side walls.

8. The board-to-board socket connector according to claim 2, characterized in that... The at least one first housing includes a plurality of welding feet extending from the first side plate and the second side plate. The plurality of welding feet includes a plurality of first connectors and a plurality of second connectors. Each first connector is disposed on each of the first side plates, and each second connector is disposed on each of the second side plates.

9. The board-to-board receptacle connector according to claim 8, characterized by The at least one first housing includes a plurality of fixing pieces respectively disposed on each of the first side plates. The first base has a plurality of first protrusions located on each of the first outer side walls and a first slot located between each of the first protrusions. Each of the first pins and each of the fixing pieces are respectively engaged in the first slot.

10. The board-to-board receptacle connector according to claim 8, characterized by The first base has a plurality of second protrusions located on each of the second outer sidewalls and a second slot located between each of the second protrusions, and each of the second pins is respectively engaged in each of the second slots.

11. The board-to-board socket connector according to claim 1, characterized in that... The movable seat includes a plurality of first grooves located on each of the first inner sidewalls and each of the second inner sidewalls, and each of the spring pieces is located in each of the first grooves.

12. The board-to-board receptacle connector according to claim 1, characterized by The movable seat includes a tongue plate located between each of the first inner sidewalls and each of the second inner sidewalls, and the tongue plate has a plurality of first terminal slots on both sides for providing one end of each of the socket signal terminals.

13. The board-to-board receptacle connector according to claim 1, characterized by Each of the socket power terminals includes a contact section, a meandering section, and a welding section exposed on the first base, located on the movable base. The meandering section is located between the contact section and the welding section.

14. The board-to-board receptacle connector according to claim 1, characterized by Each of the socket signal terminals includes a contact portion, a bend portion, and a solder portion exposed on the first base, located on the movable base. The bend portion is located between the contact portion and the solder portion.

15. A floating board-to-board connector characterized by : A board-to-board socket connector, including: A first base includes two first outer side walls and two second outer side walls, with each side of the first outer side wall connected to each side of the second outer side wall. The first base has a movable space between each of the first outer side walls and each of the second outer side walls. Each end of the first base includes a mating side and a welding side. A movable seat is located in the active space. The movable seat includes two first inner sidewalls and two second inner sidewalls. The two sides of each first inner sidewall are respectively connected to the two sides of each second inner sidewall. The movable seat has an accommodating groove located between each first inner sidewall and each second inner sidewall. At least one first housing covers each of the first outer side walls and each of the second outer side walls. The at least one first housing includes a plurality of spring pieces located on the mating side. Each spring piece extends from each of the first outer side walls, each of the second outer side walls, each of the first inner side walls and each of the second inner side walls to the receiving groove. Multiple socket signal terminals are located in the movable space. Each socket signal terminal has two ends connected to the first base and the movable seat, respectively, and one end of each socket signal terminal extends into the receiving groove. Multiple socket power terminals are located in the movable space and disposed on both sides of each socket signal terminal. Each socket power terminal has two ends connected to the first base and the movable seat, respectively, and one end of each socket power terminal extends into the receiving groove. A board-to-board plug connector, including: A second base is inserted into the receiving groove. The second base includes two first outer side walls and two second outer side walls. The two sides of each first outer side wall are respectively connected to the two sides of each second outer side wall. The second base has a mating space between each first outer side wall and each second outer side wall. The two ends of the second base respectively include a mating side and a welding side. A second housing covers each of the first outer sidewalls and each of the second outer sidewalls of the second base, the second housing being adapted to insert into the receiving slot and contact each of the spring pieces; Multiple plug signal terminals are located on the second base. One end of each plug signal terminal is disposed on the inner side of each of the first outer side wall and each of the second outer side wall, contacting one end of each of the socket signal terminals. The other end of each plug signal terminal is exposed on the second base. Multiple plug power terminals are located on the second base and disposed on both sides of each plug signal terminal. One end of each plug power terminal is disposed on the inner side of each first outer wall and each second outer wall and contacts one end of each socket power terminal. The other end of each plug power terminal is exposed on the second base.

16. The floating board-to-board connector of claim 15, wherein The second base has a plurality of locking blocks located on each of the first outer side walls and each of the second outer side walls, and a limiting groove located between each of the locking blocks, and the second outer shell is locked into each of the limiting grooves.

17. The floating board-to-board connector of claim 16, wherein The second base has multiple positioning slots at both ends that are connected to the limiting slots, and the second outer shell has multiple feet at both ends that are exposed in each of the positioning slots.

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