Board-to-board plug connector

Abstract

This utility model discloses a board-to-board plug connector comprising a base, a plug, and a plurality of plug signal terminals. Each plug signal terminal includes a flat contact section, a fixed section, and an extension section, with both ends of the fixed section extending toward the flat contact section and the extension section, respectively. The base includes two inner sidewalls, a tongue plate, a recess, and a plurality of signal terminal slots. The tongue plate is located on the two inner sidewalls, the signal terminal slots are located on both sides of the tongue plate and on the inner sidewalls, and the recess is located between one end of the tongue plate and the two inner sidewalls. The plug signal terminals are located in the signal terminal slots, and the plug is disposed in the recess, contacting the extension section of the plug signal terminals. In this way, the plug limits the contact points of each terminal, and also reduces the portion of the terminals exposed to air, thus maintaining the plug connector's performance in high-frequency transmission. Furthermore, the recessed design of the plug connector reduces the difficulty of manufacturing and processing.

Description

Technical Field

[0001] This utility model relates to a plug connector, and more particularly to a board-to-board plug 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] Generally, to achieve different levels of autonomous driving functions, Advanced Driver Assistance Systems (ADAS) can use floating board-to-board connectors to accommodate positional shifts caused by external forces. However, conventional connector structures often have many problems. For example, for connectors with a height exceeding 7mm, complex machining processes are often required during molding to prevent insufficient structural strength from causing mold failure. Utility Model Content

[0004] In view of the above problems, in one embodiment, a board-to-board plug connector is provided, including a base, a plug, and a plurality of plug signal terminals. The base includes two inner sidewalls, a tongue plate, a recess, and a plurality of signal terminal slots. The tongue plate is located on the two inner sidewalls, the signal terminal slots are located on both sides of the tongue plate and the inner sidewalls, and the recess is located between one end of the tongue plate and the two inner sidewalls. Each plug signal terminal includes a flat contact section, a fixed section, and an extension section. The fixed section is located in the signal terminal slot, the flat contact section extends from one end of the fixed section and is exposed on one side of the tongue plate, and the extension section extends from the other end of the fixed section and is exposed on one side of the recess. The plug is disposed in the recess and contacts the extension section of the plug signal terminal.

[0005] Preferably, each signal terminal slot includes an exposed section, a channel section, and a connecting section. The two ends of the channel section are respectively connected to the exposed section and the connecting section, wherein the free end of the flat contact section interferes with the two side walls of the exposed section.

[0006] Preferably, the exposed section includes a tapered portion and a receiving portion, the distance between the two side walls of the tapered portion is smaller than the distance between the two side walls of the receiving portion, and the free end of the plate contact section interferes with the two side walls of the tapered portion.

[0007] Preferably, the plug includes a plurality of ribs, each of which interferes with the two inner sidewalls of the base.

[0008] Preferably, the plug further includes an end, a first contact segment, and a second contact segment, the two ends of the second contact segment extending toward the first contact segment and the end, respectively, wherein the ribs are located at the end.

[0009] Preferably, the first contact segment of the plug contacts the extension segments of the plug signal terminals on both sides, and the second contact segment of the plug contacts the plug power terminals.

[0010] Preferably, the thickness of the second contact segment is less than the thickness of the first contact segment, and the thickness of the first contact segment is less than the thickness of the end.

[0011] Preferably, the ratio of the height of the plug to the height of the base is 1:3.

[0012] Preferably, the ratio of the height of the stopper to the height of the tongue plate is 1:2.

[0013] Preferably, the thickness of the plug is greater than the thickness of the tongue plate.

[0014] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0015] The plug limits the position of each terminal pin and also reduces the portion of the terminal exposed to air, thus maintaining the connector's performance at high frequencies. Furthermore, the recessed design of the connector reduces manufacturing complexity. Attached Figure Description

[0016] Figure 1A An exploded view of a floating board-to-board connector assembly according to some embodiments is shown;

[0017] Figure 1B Drawing basis Figure 1A A magnified view of a portion of area labeled 1B;

[0018] Figure 2 An exploded view of a plug connector according to some embodiments is shown;

[0019] Figure 3A A perspective view of the plug signal terminals according to some embodiments is shown;

[0020] Figure 3B A perspective view of the plug power terminals is shown according to some embodiments;

[0021] Figure 4 Drawing basis Figure 1A A cross-sectional view at position 4-4;

[0022] Figure 5 A cross-sectional schematic diagram of a base according to some embodiments is shown;

[0023] Figure 6A A perspective view of a plug connector according to some embodiments is shown;

[0024] Figure 6B Drawing basis Figure 6AA magnified view of a portion of the area marked 6B.

[0025] Figure 7 A three-dimensional schematic diagram of a plug according to some embodiments is shown;

[0026] Figure 8A Drawing basis Figure 1A A cross-sectional view of the area marked 8A-8A;

[0027] Figure 8B Drawing basis Figure 8A A magnified view of a portion of the area marked 8B.

[0028] Figure 9 An exploded view of a socket connector according to some embodiments is shown;

[0029] Figure 10 A top view (a) of a socket connector according to some embodiments is shown;

[0030] Figure 11 Drawing basis Figure 10 A cross-sectional view showing the position marked 11-11;

[0031] Figure 12 A top view (II) of a socket connector according to some embodiments is shown;

[0032] Figure 13 A perspective view of the socket signal terminals according to some embodiments is shown;

[0033] Figure 14A A perspective view (a) of the power terminals of a socket according to some embodiments is shown.

[0034] Figure 14B A perspective view (II) of the socket power terminals according to some embodiments is shown.

[0035] Figure 14C A three-dimensional schematic diagram (III) of the socket power terminals according to some embodiments is shown;

[0036] Figure 14D A three-dimensional schematic diagram (IV) of the power supply terminals of a socket according to some embodiments is shown.

[0037] Figure 14E A three-dimensional schematic diagram (V) of the socket power terminals according to some embodiments is shown;

[0038] Figure 15A Draw Figure 14A A magnified view of a portion of area 15A;

[0039] Figure 15B Draw Figure 14BA magnified view of the area marked 15B; and

[0040] Figure 16 A cross-sectional schematic diagram of a floating board-to-board connector assembly according to some embodiments is shown, indicating that the plug signal terminals of the plug connector are electrically connected to the socket signal terminals of the socket connector, with the two circuit boards indicated by dashed lines.

[0041] Symbol Explanation

[0042] 1: Plug Connector

[0043] 11: Base

[0044] 100: Signal terminal slot

[0045] 102: Exposed section

[0046] 102a: tapering section

[0047] 102b: Reception Section

[0048] 104: Channel Section

[0049] 106: Connected segments

[0050] 111: Flange

[0051] 113: Guide groove

[0052] 12: Plug power terminals

[0053] 121: Wide section

[0054] 127: Winding Section

[0055] 128: Welding Section

[0056] 120: Power terminal slot

[0057] 122: Exposed section

[0058] 122a: tapering section

[0059] 122b: Reception Section

[0060] 13: Block

[0061] 131: Ribs

[0062] 132:End

[0063] 134: Second contact segment

[0064] 136: First contact segment

[0065] 15: Tongue plate

[0066] 16: Inner wall

[0067] 17: Plug signal terminals

[0068] 172: Flat plate contact section

[0069] 174: Fixed Section

[0070] 176: Extension

[0071] 176a: Longitudinal section

[0072] 176b: Radial part

[0073] 178: Welding Section

[0074] 2: Socket connector

[0075] 20: Through slot

[0076] 21: Fixed base

[0077] 22: Signal terminal slot

[0078] 23: Floating Seat

[0079] 231: Partition wall

[0080] 233: Guiding end

[0081] 24, 24a, 24b, 24c, 24d: Power terminal slots

[0082] 25, 25a, 25d: Socket power terminals

[0083] 251: First fixed segment

[0084] 251a: Card / Clutch Section

[0085] 251b: tapering section

[0086] 252: Second fixed segment

[0087] 252a: Second plate section

[0088] 252b: First plate section

[0089] 253: Connecting segment

[0090] 2531: First Bend

[0091] 2532: Second bend

[0092] 2533: Bevel face

[0093] 254: Contact section

[0094] 254a, 254b, 254c: Contact free end

[0095] 2540: Base

[0096] 255: Welding section

[0097] 27: Socket signal terminals

[0098] 271: First fixed segment

[0099] 272: Second fixed segment

[0100] 273: Connecting segment

[0101] 274: Contact segment

[0102] 275: Welding section

[0103] 30: concave part

[0104] 32: Escape chute

[0105] C: Central axis

[0106] G: Gap

[0107] S: Spacing

[0108] D1a, D1b, D2a, D2b: Distance

[0109] Z1, Z7, Z8: Radial centerlines

[0110] W1, W2, W3, W5, W7, W21, W27, W28, W31, W32, W33, W54: Width

[0111] X3, X5, X10, X31: Height

[0112] L32, L34, L36: Thickness. Detailed Implementation

[0113] Please see Figure 1A , Figure 1B , Figure 2 , Figure 3A , Figure 3B , Figure 4 , Figure 5 and Figure 16 , Figure 1A An exploded view of a floating board-to-board connector assembly according to some embodiments is shown; Figure 1B Drawing basis Figure 1A A magnified view of a portion of area labeled 1B; Figure 2 An exploded view of a plug connector 1 according to some embodiments is shown; Figure 3A A perspective view of the plug signal terminal 17 according to some embodiments is shown; Figure 3B A perspective view of the plug power terminal 12 according to some embodiments is shown; Figure 4 Drawing basis Figure 1A A cross-sectional view at position 4-4; Figure 5 A cross-sectional schematic diagram of a base 11 according to some embodiments is shown; and Figure 16 A cross-sectional schematic diagram of a floating board-to-board connector assembly according to some embodiments is shown, showing that the plug signal terminal 17 of the plug connector 1 is electrically connected to the socket signal terminal 27 of the socket connector 2, and the two circuit boards 3 and 4 are indicated by dashed lines.

[0114] Please see Figure 1A A floating board-to-board connector assembly includes a plug connector 1 and a socket connector 2. This floating board-to-board connector assembly is suitable for installation in advanced driver assistance systems (ADAS) of in-vehicle equipment, such as audio-visual equipment or autonomous driving devices. Please refer to... Figure 16 The plug connector 1 is adapted to be mounted on the surface of the circuit board 3, and the plug connector 1 is adapted to be electrically connected to the socket connector 2 mounted on another circuit board 4. The following description first illustrates the specific structure of the plug connector 1 with some embodiments, and then illustrates the specific structure of the socket connector 2 with other embodiments.

[0115] Please see Figure 2 The plug connector 1 mainly includes a base 11, a plug block 13, and a plurality of plug signal terminals 17. (See also...) Figure 4 and Figure 5 The base 11 includes two inner sidewalls 16, a tongue plate 15, a recess 30, and a plurality of signal terminal slots 100. The tongue plate 15 is located between the two inner sidewalls 16, the recess 30 is located between one end of the tongue plate 15 and the two inner sidewalls 16, and the signal terminal slots 100 are located on both sides of the tongue plate 15 and the inner sidewalls 16. The plug signal terminals 17 are located in the signal terminal slots 100 (see...). Figure 4 Please see ). Figure 3A The plug signal terminal 17 includes a flat contact section 172, a fixing section 174, an extension section 176, and a soldering section 178. The fixing section 174 is located in the signal terminal slot 100 and engages with the inner sidewall 16. The flat contact section 172 extends from one end of the fixing section 174 and is exposed on one side of the tongue plate 15. The extension section 176 extends from the other end of the fixing section 174 and is exposed on one side of the recess 30. The extension section 176 extends along the inner sidewall 16 and the top surface of the base 11 in a bent manner. Furthermore, a plug 13 is disposed in the recess 30, and both sides of the plug 13 contact the extension section 176 of the plug signal terminal 17. Please refer to... Figure 4The longitudinal portion 176a of the extension 176 is located between the plug 13 and the inner sidewall 16, and the radial portion 176b of the extension 176 is located on the top surface of the base 11. The welding section 178 extends from one end of the extension 176 and is exposed outside the base 11. In some embodiments, the plug 13 may be made of, for example, plastic. In this way, the plug 13 limits the pins of each terminal, and since there is a difference between the dielectric constant of air and the dielectric constant of the base 11, this difference can affect the performance of the connector in high-frequency transmission. Therefore, the plug 13 can also reduce the portion of the terminals exposed to air to maintain the performance of the plug connector 1 in high-frequency transmission. In addition, if the depth of the mold core is too long during the mold making process, for example, exceeding 7 mm, it is easy to cause the mold core to bend. However, the design of the recess 30 of the plug connector 1 can reduce the difficulty of manufacturing.

[0116] Please see Figure 6A , Figure 6B , Figure 7 , Figure 8A and Figure 8B , Figure 6A A perspective view of a plug connector 1 according to some embodiments is shown; Figure 6B Drawing basis Figure 6A A magnified view of a portion of the area marked 6B. Figure 7 A perspective view of the plug 13 according to some embodiments is shown; Figure 8A Drawing basis Figure 1A A cross-sectional view indicating the location 8A-8A; and Figure 8B Drawing basis Figure 8A A magnified view of a portion of the area marked 8B.

[0117] Please see Figure 5 In some embodiments, the tongue plate 15 extends from one-third of the height of the inner sidewall 16 toward the bottom of the base 11 and is exposed outside the base 11. The signal terminal slot 100 includes an exposed section 102, a channel section 104, and a connecting section 106. The exposed section 102 is located at the bottom of the base 11, and the connecting sections 106 of two adjacent signal terminal slots 100 are connected to form a recess 30. See also... Figure 4 The flat contact section 172 of the plug signal terminal 17 is located in the exposed section 102, the fixed section 174 is located in the channel section 104, and the extension section 176 is located in the connecting section 106.

[0118] Please see Figure 6A and Figure 6BThe exposed section 102 of the signal terminal slot 100 includes a tapered portion 102a and a receiving portion 102b, wherein the distance D1a between the two sidewalls of the tapered portion 102a is less than the distance D1b between the two sidewalls of the receiving portion 102b. Specifically, the free end of the flat contact section 172 is in close contact with the two sidewalls of the tapered portion 102a, and there is a gap G between the flat contact section 172 and the two sidewalls of the receiving portion 102b. This means that the width of the flat contact section 172 is substantially the same as the distance D1b, but less than the distance D1b. The free end of the flat contact section 172 interferes with the two sidewalls of the signal terminal slot 100 (tapered portion 102a), and the plug signal terminal 17 has an "anti-prying PIN" structure design. In this way, the risk of functional failure due to terminal damage can be reduced during the mating process of the plug connector 1 and the socket connector 2.

[0119] Please see Figure 6A In some embodiments, the base 11 has a guide groove 113 at its bottom, a tongue 15 protruding outward from the guide groove 113, and an exposed section 102 exposed in the guide groove 113. The two ends of the guide groove 113 have chamfered designs. The guide groove 113 is adapted to mate with the floating seat 23 of the socket connector 2.

[0120] Please see Figure 8A In some embodiments, the base 11 has a plurality of escape grooves 32, which are used to balance the thickness of the base 11. These escape grooves 32 are symmetrically arranged on both sides of the base 11 along the center of the base 11. Therefore, during the mold making process of the connector, the overall thickness of the base 11 can be uniform, so as to reduce the occurrence of incomplete molding and insufficient molding problems.

[0121] Additionally, please see Figure 2 In some embodiments, the plug connector 1 does not have a plug power terminal 12. In some embodiments, the plug connector 1 further includes a plurality of plug power terminals 12, and the base 11 further includes a plurality of power terminal slots 120, which are located on both sides of the tongue plate 15 and the inner sidewall 16, with the plug power terminals 12 located in the power terminal slots 120. The signal terminal slot 100 is located in the central part of the base 11, and the power terminal slots 120 are located near the two ends of the base 11. The plug power terminal 12 includes a wide plate section 121, a meandering section 127, and a soldering section 128. The meandering section 127 is located between the wide plate section 121 and the soldering section 128. The wide plate section 121 is located in the power terminal slot 120, the meandering section 127 is located on the top surface of the base 11, and the soldering section 128 is exposed outside the base 11.

[0122] Please see Figure 3A and Figure 3BThe width of the plug power terminal 12 is greater than the width of the plug signal terminal 17. In some embodiments, the average width of the narrowest portion (e.g., solder section 128) of the plug power terminal 12 is greater than the average width of the widest portion (e.g., solder section 128) of the plug signal terminal 17. Figure 3A The width W7 of the longitudinal portion 176a. In some embodiments, the width W27 of the meandering segment 127 of the plug power terminal 12 is greater than the width of the plug signal terminal 17, or greater than the width W7 of the extension segment 176 (longitudinal portion 176a) of the plug signal terminal 17. In some embodiments, please refer to... Figure 3B The width W21 of the wide plate segment 121 of the plug power terminal 12 is greater than the width W27 of the meandering segment 127, and the width W27 of the meandering segment 127 is greater than the width W28 of the soldering segment 128. The width W27 of the meandering segment 127 gradually decreases from the wide plate segment 121 towards the soldering segment 128. In some embodiments, the current capacity of the plug power terminal 12 is 3 amps, the current capacity of the plug signal terminal 17 is 0.5 amps, and the width W27 of the meandering segment 127 of the plug power terminal 12 is between 0.5 and 0.7 times the width W21 of the wide plate segment 121. In this way, the width W27 of the meandering segment 127 of the plug power terminal 12 is increased, which not only maintains the high current transmission function but also enhances the heat dissipation capacity of the plug connector 1.

[0123] In addition, please see Figure 1B and Figure 2 In some embodiments, the base 11 has a flange 111 that protrudes outward from the top surface of the base 11. A wide plate segment 121 of the plug power terminal 12 is located within a power terminal slot 120. A meandering segment 127 extends eccentrically from an opening in the power terminal slot 120 toward the flange 111. A soldering segment 128 abuts against the flange 111 and extends radially outward. See also... Figure 3B The two ends of the meandering segment 127 have a step difference.

[0124] Please see Figure 1B In some embodiments, the meandering section 127 of the plug power terminal 12 tapers from the wide plate section 121 toward the soldering section 128, which extends eccentrically from the wide plate section 121. See also... Figure 1B The meandering section 127 runs in a direction away from the plug signal terminal 17 (soldering section 178), for example, with Figure 1BThe viewing direction, from right to left, curves from the wide plate segment 121 towards the soldering segment 128. In other words, the radial center line Z8 of the soldering segment 128 is located on one side of the radial center line Z1 of the wide plate segment 121, and the distance between the wide plate segment 121 of the plug power terminal 12 and the plug signal terminal 17 is less than the distance between the soldering segment 128 of the plug power terminal 12 and the plug signal terminal 17. In other words, the distance from the radial center line Z1 to the radial center line Z7 of the plug signal terminal 17 is less than the distance from the radial center line Z8 to the radial center line Z7 of the plug signal terminal 17. As a result, the distance between the soldering segment 128 of the plug power terminal 12 and the plug signal terminal 17 is increased to enhance the heat dissipation capacity of the plug connector 1.

[0125] Please see Figure 6B In some embodiments, the power terminal slot 120 includes an exposed section 122 located at the bottom of the base 11. The exposed section 122 includes a tapered portion 122a and a receiving portion 122b, wherein the distance D2a between the two sidewalls of the tapered portion 122a is smaller than the distance D2b between the two sidewalls of the receiving portion 122b. Specifically, a portion of the wide plate section 121 of the plug power terminal 12 is located in the exposed section 122 of the power terminal slot 120. The free end of the wide plate section 121 is in close contact with the two sidewalls of the tapered portion 122a, and a gap exists between the wide plate section 121 and the two sidewalls of the receiving portion 122b. This means that the width of the free end of the wide plate segment 121 is substantially the same as the distance D2b, but smaller than the distance D2b. The free end of the wide plate segment 121 interferes with the two side walls of the power terminal slot 120 (tapered portion 122a). The plug power terminal 12 has an "anti-lifting PIN" structure design.

[0126] Please see Figure 4 and Figure 5 In some embodiments, the ratio of the height X3 of the plug 13 to the height X10 of the base 11 is approximately 1:3, the ratio of the height X3 of the plug 13 to the height X5 of the tongue plate 15 is approximately 1:2, and the thickness L3 of the plug 13 is greater than the thickness L5 of the tongue plate 15 to limit the pins of each terminal. Figure 4 The viewing angle is the vertical distance between the top and bottom surfaces of the component, and the height is the horizontal distance between the two opposite sides of the component. For details, please refer to [link / reference]. Figure 7 The plug 13 includes an end portion 132, a first contact segment 136, a second contact segment 134, and a plurality of ribs 131. The two ends of the second contact segment 134 extend toward the first contact segment 136 and the end portion 132, respectively. The ribs 131 are located at the end portion 132. The height X31 of each rib 131 is less than the height X3 of the plug 13, and the height X31 is the vertical distance between one end of the rib 131 and the top surface of the plug 13. (See also...) Figure 8BThe rib 131 interferes with the two inner sidewalls 16 of the base 11, the two sides of the first contact section 136 of the plug 13 contact the extension section 176 (longitudinal portion 176a) of the plug signal terminal 17, the second contact section 134 of the plug 13 contact the wide plate section 121 of the plug power terminal 12, the thickness L34 of the second contact section 134 is less than the thickness L36 of the first contact section 136, and the thickness L36 of the first contact section 136 is less than the thickness L32 of the end 132.

[0127] On the other hand, please refer to 9. Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14A , Figure 14B and Figure 15B , Figure 9 An exploded view of the socket connector 2 according to some embodiments is shown; Figure 10 A top view (a) of a socket connector 2 according to some embodiments is shown; Figure 11 Drawing basis Figure 10 A cross-sectional view showing the position marked 11-11; Figure 12 A top view (II) of a socket connector 2 according to some embodiments is shown; Figure 13 A perspective view of the socket signal terminal 27 according to some embodiments is shown; Figure 14A A perspective view (a) of the socket power terminal 25 according to some embodiments is shown. Figure 14B A perspective view (II) of the socket power terminal 25 according to some embodiments is shown; and Figure 15B Draw Figure 14B A magnified view of the area marked 15B.

[0128] Please see Figure 9 The socket connector 2 includes a fixed base 21, a floating base 23, a plurality of socket signal terminals 27, and a plurality of socket power terminals 25. The fixed base 21 has a through slot 20, and the floating base 23 is located in the through slot 20. The floating base 23 has a plurality of signal terminal slots 22 and a plurality of power terminal slots 24. The power terminal slots 24 are located at both ends of the floating base 23, and the signal terminal slots 22 are located in the center of the floating base 23. In some embodiments, the top of the floating base 23 has two guide ends 233, which protrude outward from both ends of the top surface of the floating base 23 and have a chamfered design. In some embodiments, the misalignment guide displacement between the plug connector 1 and the socket connector 2 is up to 1.30 mm. Therefore, during installation, the guiding and misalignment mating capability of the product can be improved.

[0129] Please see Figure 9The socket power terminal 25 is located in the power terminal slot 24, and the socket signal terminal 27 is located in the signal terminal slot 22. The two ends of the socket signal terminal 27 are respectively connected to the fixed base 21 and the floating base 23, and the two ends of the socket power terminal 25 are also respectively connected to the fixed base 21 and the floating base 23. That is, the fixed base 21 and the floating base 23 are indirectly connected through the socket signal terminal 27 and the socket power terminal 25, and the fixed base 21 and the floating base 23 do not contact each other. Please refer to [link / reference]. Figure 16 In some embodiments, the floating seat 23 has a movement (or floating amount) of approximately ±0.8 mm on the X-axis or Z-axis, and a movement of approximately ±0.5 mm on the Y-axis. Therefore, the plug connector 1 and the socket connector 2 are in a floating docking configuration, and the floating seat 23 of the socket connector 2 can have movement on multiple axes within the slot 20 of the fixed seat 21 to absorb external forces during vibration. This also maintains the stability of the floating seat 23 and ensures a good electrical connection.

[0130] Please see Figure 9 and Figure 13 The socket signal terminal 27 includes a contact section 274, a first fixing section 271, a second fixing section 272, a connecting section 273, and a soldering section 275. The first fixing section 271 is engaged with the inner wall of the floating seat 23, and the second fixing section 272 is engaged with the fixed seat 21. The contact section 274 extends from one end of the first fixing section 271 and protrudes into the floating seat 23. The connecting section 273 extends from the other end of the first fixing section 271 to the second fixing section 272. The soldering section 275 extends from one end of the second fixing section 272 and protrudes out of the fixed seat 21. In some embodiments, the connecting section 273 is the widest part of the socket signal terminal 27, that is, the width of the connecting section 273 is greater than the width of the contact section 274, the first fixing section 271, the second fixing section 272, or the soldering section 275. In some embodiments, the structure of the socket signal terminal 27 in the signal terminal slot 22 is similar to... Figure 11 The structures shown are the same; please refer to the following examples for further explanation.

[0131] The following describes the structural details of the socket power terminal 25 using some embodiments.

[0132] Please see Figure 11 The power terminal slot 24 is located on the inner side of the floating seat 23. The partition wall 231 of the floating seat 23 separates the two opposing power terminal slots 24. The power terminal slot 24 includes a mating section 242 and a locking section 244. The mating sections 242 of the two opposing power terminal slots 24 are connected to provide a mating space for mating with the plug connector 1.

[0133] The socket power terminal 25 includes a contact section 254, a first fixing section 251, a second fixing section 252, a connecting section 253, and a soldering section 255. The contact section 254 is located at the mating section 242 of the power terminal slot 24 and is adapted to engage with the wide plate section 121 of the plug power terminal 12 of the plug connector 1. The first fixing section 251 of the socket power terminal 25 is engaged with the inner wall of the floating seat 23 (i.e., the engaging section 244 of the power terminal slot 24), and the second fixing section 252 is engaged with the fixing seat 21. The contact section 254 extends from one end of the first fixing section 251 into the interior of the floating seat 23. Please refer to [link to relevant documentation]. Figure 11 and Figure 14A The connecting segment 253 extends from one end of the first fixing segment 251 to the second fixing segment 252. The two ends of the second fixing segment 252 extend to the connecting segment 253 and the welding segment 255, respectively. The welding segment 255 is exposed outside the fixing base 21. The narrowest part of the socket power terminal 25 is the connecting segment 253. Specifically, the connecting segment 253 includes a first bent portion 2531, a beveled portion 2533, and a second bent portion 2532. The beveled portion 2533 is located between the floating base 23 and the fixing base 21. The first bent portion 2531 is located on the bottom surface of the floating base 23, and the second bent portion 2532 is located on the inner side of the fixing base 21. The first bent portion 2531 extends from one end of the first fixing segment 251 to the beveled portion 2533, and the two ends of the second bent portion 2532 extend to the beveled portion 2533 and the second bent portion 2532, respectively. Please refer to [link / reference]. Figure 14B and Figure 15B The second fixing segment 252 is a single piece without grooves. The second fixing segment 252 includes a first plate portion 252b and a second plate portion 252a. The first plate portion 252b extends to the second bending portion 2532, and the second plate portion 252a extends to the welding segment 255. The width W32 of the second bending portion 2532 is smaller than the width W2 of the second fixing segment 252.

[0134] by Figure 14A For example, the first fixed section 251, the connecting section 253, and the second fixed section 252 are continuous, single-piece structures without grooves. The average width of the first bent portion 2531 (W31), the beveled portion 2533 (W33), and the second bent portion 2532 (W32) is equal to the width of the connecting section 253 (W3), which is smaller than the width of the first fixed section 251 (W1) or the width of the second fixed section 252 (W2). This design allows for a tapered design at the bends in the socket power terminal 25 (e.g., the connecting section 253), ensuring good elasticity even under high current capacity requirements to accommodate positional shifts caused by external forces. Furthermore, the increased area of ​​the first fixed section 251 and the second fixed section 252 enhances heat dissipation and conduction, and facilitates the transmission of large currents.

[0135] Please see Figure 10In some embodiments, the socket connector 2 has four socket power terminals 25, each located in power terminal slots 24a, 24b, 24c, and 24d. See also... Figure 12 In some embodiments, the socket connector 2 has two socket power terminals 25a and 25d, which are symmetrically arranged in the power terminal slots 24a and 24d with the central axis C of the floating seat 23 as the center.

[0136] Please see Figure 14C , Figure 14D , Figure 14E And Figure 15, Figure 14C A three-dimensional schematic diagram (III) of the socket power terminal 25 according to some embodiments is shown; Figure 14D A three-dimensional schematic diagram (IV) of the socket power terminal 25 according to some embodiments is shown. Figure 14E Figure 5 shows a perspective view of the socket power terminal 25 according to some embodiments; and Figure 15 shows... Figure 14A A magnified view of area 15.

[0137] Please see Figure 14A The contact segment 254 includes a plurality of contact free ends 254a, 254b, and 254c. The contact free ends 254a, 254b, and 254c are parallel to each other and have a spacing S between adjacent ones. In other words, the contact segment 254 of the socket power terminal 25 has a groove. The width W54 of each contact free end 254a, 254b, and 254c is smaller than the width W3 of the connecting segment 253. In some embodiments, the width W3 of the connecting segment 253 is 0.6 mm, and the width W54 of each contact free end 254a, 254b, and 254c is approximately 0.4 mm to 0.45 mm. In this way, the socket power terminal 25 and the plug power terminal 12 of the plug connector 1 have multi-point contact, enhancing the terminal's flexibility and maintaining the maximum current flow (or current carrying capacity) of the terminal. Furthermore, for connector miniaturization design, a terminal design that increases the terminal's current carrying capacity while providing good flexibility is provided, making the connector application scenarios more flexible, convenient, and reliable.

[0138] Please see Figure 14A As shown in Figure 15, in some embodiments, the contact segment 254 has three contact free ends 254a, 254b, and 254c. The connection point of the contact free ends 254a, 254b, and 254c is the base 2540 of the contact segment 254. The width of the base 2540 is substantially the same as the width W1 of the first fixed segment 251. The first fixed segment 251 has a locking portion 251a and a tapered portion 251b. The locking portion 251a extends toward the base 2540 of the contact segment 254, and the tapered portion 251b extends toward the connecting segment 253.

[0139] The following description illustrates the specific structure of the connection segment 253 of the socket power terminal 25 using some embodiments.

[0140] Please see Figure 14A In some embodiments, the width W1 of the first fixing segment 251 is the same as the width W2 of the second fixing segment 252. The width W5 of the welding segment 255 is greater than the width W3 of the connecting segment 253, but less than the width W1. The widths of the first bent portion 2531, the beveled portion 2533, and the second bent portion 2532 are all the same. Furthermore, the width W3 of the connecting segment 253 is greater than or equal to the width of the socket signal terminal 27.

[0141] Please see Figure 14B In some embodiments, the widths W31 of the first curved portion 2531 and W32 of the second curved portion 2532 of the connecting segment 253 are both smaller than the width W33 of the inclined portion 2533. This means that the first curved portion 2531 and the second curved portion 2532 are the narrower portions of the connecting segment 253. Widths W31 and W32 are the same, while width W33 is smaller than width W1 and larger than width W31. Furthermore, the contact segment 254 has three contact free ends 254a, 254b, and 254c, and the width W54 of each contact free end 254a, 254b, and 254c is smaller than both widths W31 and W32. In some embodiments, the ratio of width W54 to width W31 is 2:3.

[0142] Please see Figure 14C In some embodiments, the width W1 of the first fixed segment 251, the width W2 of the second fixed segment 252, and the width W33 of the inclined portion 2533 are the same. The width W31 of the first curved portion 2531 and the width W32 of the second curved portion 2532 may be the same or different. Both the width W31 and the width W32 are greater than the width of the socket signal terminal 27.

[0143] Please see Figure 14D In some embodiments, the contact segment 254 has two free contact ends 254a and 254c. The width W33 of the inclined portion 2533 is greater than the distance S between the free contact ends 254a and 254c. The distance S is greater than the width W54 of the free contact ends 254a and 254c. The widths W31 of the first curved portion 2531 and W32 of the second curved portion 2532 are both greater than the width W54. The widths W31 and W32 are less than the distance S. In some embodiments, the sum of the distance S and the width W54 of the two free contact ends 254a and 254c is the width of the base 2540 of the contact segment 254. The width of the base 2540 is substantially the same as the width W1 of the first fixed segment 251.

[0144] Please see Figure 14EIn some embodiments, the contact segment 254 has two contact free ends 254a and 254c. The width W31 of the first curved portion 2531 and the width W32 of the second curved portion 2532 are both smaller than the width W54 of the contact free ends 254a and 254c. The width W31 of the first curved portion 2531 is larger than the distance S between the contact free ends 254a and 254c. The distance S is smaller than the width W54.

Claims

1. A board-to-board plug connector characterized by : A base includes two inner sidewalls, a tongue plate, a recess, and a plurality of signal terminal slots. The tongue plate is located between the two inner sidewalls, and each of the signal terminal slots is located on both sides of the tongue plate and the two inner sidewalls. The recess is located at one end of the tongue plate and between the two inner sidewalls. A plurality of plug signal terminals, each plug signal terminal including a fixed section located in one of the signal terminal slots, a flat contact section extending from one end of the fixed section and exposed on both sides of the tongue plate, and an extension section extending from the other end of the fixed section and exposed on both sides of the recess; and A plug is disposed in the recess, the plug contacting the extension of each of the plug signal terminals.

2. The board-to-board plug connector according to claim 1, characterized by Each of the signal terminal slots includes an exposed section, a channel section, and a connecting section. The two ends of the channel section are respectively connected to the exposed section and the connecting section. The free end of the plate contact section interferes with the two sidewalls of the exposed section.

3. The board-to-board plug connector according to claim 2, characterized by The exposed section includes a tapered portion and a receiving portion. The distance between the two sidewalls of the tapered portion is smaller than the distance between the two sidewalls of the receiving portion. The free end of the plate contact section interferes with the two sidewalls of the tapered portion.

4. The board-to-board plug connector according to claim 1, characterized by The plug includes a plurality of ribs, each of which interferes with the two inner sidewalls of the base.

5. The board-to-board plug connector according to claim 4, characterized by The plug further includes an end, a first contact segment, and a second contact segment, wherein the two ends of the second contact segment extend toward the first contact segment and the end, respectively, and each of the ribs is located at the end.

6. The board-to-board plug connector according to claim 5, wherein The first contact segment of the plug contacts the extension segment of the plug signal terminal on both sides, and the second contact segment of the plug contacts a plug power terminal.

7. The board-to-board plug connector according to claim 5, wherein The thickness of the second contact segment is less than the thickness of the first contact segment, and the thickness of the first contact segment is less than the thickness of the end.

8. The board-to-board plug connector according to claim 1, characterized by The ratio of the height of the plug to the height of the base is 1:

3.

9. The board-to-board plug connector according to claim 1, characterized by The ratio of the height of the plug to the height of the tongue plate is 1:

2.

10. A board-to-board plug connector according to claim 1, characterized in that... The thickness of the plug is greater than the thickness of the tongue plate.

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