Floating type board-to-board connector

Abstract

The invention relates to a floating type board-to-board connector, and relates to the technical field of electronic connectors, the connector comprises a plug assembly and a socket assembly which are mutually plugged, the plug assembly comprises a plurality of first signal terminals and at least two pairs of first power supply terminals; the socket assembly is composed of a fixed socket shell and a movable socket shell and comprises a plurality of second signal terminals and at least two pairs of second power supply terminals, and the terminals are electrically connected when the plug assembly and the socket assembly are mutually plugged. Through the clamping structure and the elastic component which are optimally designed, the stability and the reliability of connection are ensured, meanwhile, the butt joint precision and the vibration resistance are improved, and the problems of poor contact, easiness in loosening and the like existing in a traditional connector are effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic connectors, and in particular to a floating board-to-board connector. Background Art

[0002] Board-to-board connectors are widely used in electronic devices, especially in situations where high reliability and stability are required. As electronic products develop towards miniaturization and lightweight, the design of board-to-board connectors is constantly improving to adapt to more complex application environments and higher performance requirements. Traditional board-to-board connectors usually use a fixed connection method. Although this design is simple and reliable, it has certain limitations in certain application scenarios. For example, it is easy to cause poor contact when subjected to external shock or vibration, which in turn affects the stability of the entire system.

[0003] In order to improve the reliability and stability of board-to-board connectors, existing technical solutions mainly focus on the following aspects: First, by optimizing the terminal structure to enhance contact reliability, such as increasing the elasticity and contact area of ​​the terminal; second, by introducing a floating mechanism to enable relative movement between the plug and the socket to absorb external stress and deformation; third, by strengthening the rigidity and strength of the shell structure to prevent damage caused by external forces. These methods have their own characteristics and are widely used in different scenarios, effectively improving the overall performance of the connector.

[0004] However, the floating board-to-board connector in the prior art still has some shortcomings. Especially in the case of multi-point contact, due to the large number of signal terminals and power terminals, how to ensure that each terminal can maintain a good contact state has become a problem. In addition, traditional designs often find it difficult to achieve high-precision positioning and large-range floating at the same time, which may cause poor contact or even short circuit problems due to slight position deviations in actual use. Summary of the invention

[0005] The purpose of the present application is to provide a floating board-to-board connector to improve the stability and reliability of the connection of the floating board-to-board connector.

[0006] The present application provides a floating board-to-board connector that adopts the following technical solution: A floating board-to-board connector comprises a plug assembly and a socket assembly plugged into each other, wherein the plug assembly comprises a plug housing, and further comprises a plurality of first signal terminals and at least two pairs of first power terminals fixed in the plug housing; The socket assembly includes a fixed socket housing and a movable socket housing, and also includes a plurality of second signal terminals and at least two pairs of second power terminals fixed in the fixed socket housing, wherein the plurality of second signal terminals and at least two pairs of second power terminals are snap-connected with the interior of the movable socket housing; The plurality of first signal terminals and the plurality of second signal terminals contact each other when the plug assembly and the socket assembly are plugged into each other, and the at least two pairs of first power terminals and the at least two pairs of second power terminals contact each other when the plug assembly and the socket assembly are plugged into each other; The movable socket housing is provided with a plurality of signal terminal clamping grooves, and the signal terminal clamping grooves are provided with stepped grooves; The plurality of second signal terminals sequentially include a signal terminal contact portion, a signal terminal clamping portion, a signal terminal elastic portion, a signal terminal fixing portion and a signal terminal welding portion, and the signal terminal clamping portion is clamped with the movable socket housing; The surface of the signal terminal clamping portion is provided with a plurality of protrusion structures that cooperate with the stepped groove, and the plurality of protrusion structures are clamped into the stepped groove so that the second signal terminal is clamped with the signal terminal clamping groove.

[0007] By adopting the above technical solution, the present application realizes a high-reliability connection of a floating board-to-board connector. Among them, the mutual plug-in design between the plug assembly and the socket assembly ensures good contact between the signal terminal and the power terminal, and improves the electrical performance and stability. The signal terminal snap-in groove and its stepped groove design inside the movable socket housing enable the second signal terminal to be firmly snapped into the snap-in groove to prevent loosening or displacement, thereby enhancing the reliability and durability of the connection. The multi-segment structure of the second signal terminal and the coordination of the raised structure with the stepped groove further enhance the stability and anti-interference ability of signal transmission. The design of the raised structure not only ensures the stable installation of the signal terminal, but also provides good mechanical strength and durability, thereby extending the service life of the product. Thereby improving the stability and reliability of the connection of the floating board-to-board connector.

[0008] Preferably, a first sinking groove structure is provided at the opening of the signal terminal clamping groove; The stepped groove includes a first stepped portion and a second stepped portion, and the first stepped portion has a smaller width than the second stepped portion.

[0009] By adopting the above technical solution, the first recessed groove structure at the opening of the signal terminal snap-in groove of the present application can effectively prevent the second signal terminal from falling off during the plugging and unplugging process, thereby improving the reliability and stability of the connector. At the same time, the design of the stepped groove enables the first stepped portion and the second stepped portion to match the raised structures of different heights, respectively, thereby ensuring the firm snap-in of the signal terminal and further enhancing the overall performance of the connector.

[0010] Preferably, the signal terminal clamping portion of the second signal terminal comprises a first protruding structure, a second protruding structure, a third protruding structure, a fourth protruding structure and a fifth protruding structure with increasing protrusion amplitudes in sequence; The first protrusion structure and the second protrusion structure are engaged with the first step portion, the third protrusion structure and the fourth protrusion structure are engaged with the second step portion, and the fifth protrusion structure is engaged with the first recessed groove structure.

[0011] By adopting the above-mentioned technical solution, the multiple protrusion structures of the signal terminal clamping part of the present application cooperate with the stepped groove and the first recessed groove structure, which can realize the stable clamping of the second signal terminal in the movable socket housing, ensuring the reliability and stability of signal transmission. Among them, the first protrusion structure and the second protrusion structure are clamped with the first stepped part, which enhances the connection strength between the signal terminal clamping part and the signal terminal clamping groove, and prevents the signal terminal from loosening or falling off. The third protrusion structure and the fourth protrusion structure are clamped with the second stepped part, which further improves the positioning accuracy of the signal terminal and ensures the quality of signal transmission. The fifth protrusion structure is clamped with the first recessed groove structure, which increases the anti-slip performance of the signal terminal, making it less likely to shift or be damaged during the plugging and unplugging process.

[0012] Preferably, the second power terminal includes a power terminal contact portion, a power terminal clamping portion, a power terminal elastic portion, a power terminal fixing portion and a power terminal welding portion in sequence; The power terminal contact portion of the second power terminal contacts the first power terminal, the power terminal elastic portion of the second power terminal elastically connects the fixed socket housing and the movable socket housing, the power terminal fixing portion of the second power terminal is fixed in the fixed socket housing, and the power terminal welding portion of the second power terminal extends from the bottom of the fixed socket housing.

[0013] By adopting the above technical solution, the structural design of the second power terminal of the present application enables it to achieve effective contact with the first power terminal, ensuring the stability and reliability of power transmission. At the same time, the design of the elastic part of the power terminal can effectively absorb the impact force and vibration during the plugging and unplugging process, and improve the overall durability of the connector. In addition, the power terminal fixing part is fixed in the fixed socket housing, which enhances the mechanical stability of the power terminal and prevents loosening or falling off. The power terminal welding part extends from the bottom of the fixed socket housing, which is convenient for reliable welding with other circuit boards and simplifies the assembly process.

[0014] Preferably, a cross connection structure is provided on one side of the power terminal welding portion of the second power terminal.

[0015] By adopting the above technical solution, the cross connection structure provided on one side of the power terminal welding portion of the second power terminal of the present application can enhance the mechanical strength and stability of the welding point and improve the overall reliability of the connector.

[0016] Preferably, the signal terminal contact portion of the second signal terminal contacts the first signal terminal, the signal terminal elastic portion of the second signal terminal elastically connects the fixed socket housing and the movable socket housing, the signal terminal fixing portion of the second signal terminal is fixed in the fixed socket housing, and the signal terminal welding portion of the second signal terminal extends from the bottom of the fixed socket housing.

[0017] By adopting the above technical solution, the present application ensures reliable contact between the second signal terminal and the first signal terminal, and improves the stability of signal transmission. At the same time, the design of the elastic part of the signal terminal enables a certain floating range between the fixed socket housing and the movable socket housing, thereby enhancing the adaptability and reliability of the connector when subjected to external impact or vibration. In addition, the fixed design of the signal terminal fixing part ensures the stability of the signal terminal in the socket assembly and prevents signal interruption problems caused by looseness. Finally, the signal terminal welding part extends from the bottom of the fixed socket housing to facilitate subsequent welding operations, simplify the assembly process, and improve production efficiency.

[0018] Preferably, a signal terminal fixing groove is provided inside the fixed socket housing, and a second recessed groove structure is provided at the opening of the signal terminal fixing groove.

[0019] By adopting the above technical solution, the provision of the signal terminal fixing groove of the present application enables the second signal terminal to be more firmly fixed in the fixed socket housing, thereby improving the overall stability of the connector. The addition of the second sinking groove structure further enhances the connection reliability between the second signal terminal and the fixed socket housing, preventing loosening due to vibration or impact, thereby ensuring the stability and reliability of signal transmission.

[0020] Preferably, the signal terminal fixing portion of the second signal terminal is provided with a sixth protrusion structure, a seventh protrusion structure, an eighth protrusion structure and a ninth protrusion structure with increasing protrusion amplitudes in sequence; The sixth protrusion structure, the seventh protrusion structure and the eighth protrusion structure are engaged with the signal terminal fixing groove, and the ninth protrusion structure is engaged with the second recessed groove structure.

[0021] By adopting the above technical solution, the signal terminal fixing portion of the second signal terminal of the present application is provided with a plurality of protrusion structures, which can form multi-point clamping with different parts of the signal terminal fixing groove, thereby ensuring the stability of the signal terminal in the fixed socket housing and preventing it from loosening or falling off. Among them, the sixth protrusion structure, the seventh protrusion structure and the eighth protrusion structure are clamped with the signal terminal fixing groove, which enhances the overall stability of the signal terminal and improves the reliability and service life of the connector. The ninth protrusion structure is clamped with the second sink groove structure, which further increases the positioning accuracy of the signal terminal, reduces the position deviation caused by vibration or impact, and ensures the stability and reliability of signal transmission.

[0022] Preferably, limit blocks are provided on both sides of the bottom of the movable socket shell, and first limit grooves are provided on both sides of the bottom of the fixed socket shell, and the limit blocks are located inside the first limit grooves. By adopting the above technical solution, the present application ensures the stable movement of the movable socket shell in the fixed socket shell through the cooperation of the limit blocks and the first limit grooves, prevents the misalignment caused by external vibration or impact, and improves the overall reliability of the connector. The design of the limit blocks and the first limit grooves enables the movable socket shell to be accurately aligned with the fixed position, reduces the position deviation that may occur during the plugging and unplugging process, and ensures good contact performance between the signal terminal and the power terminal. By limiting the moving range of the movable socket shell, excessive wear is avoided, thereby extending the service life of the connector.

[0023] Preferably, limiting protrusions are provided on both sides of the top of the movable socket housing, and second limiting grooves are provided on both sides of the plug housing, and the limiting protrusions are located inside the second limiting grooves and move up and down along the second limiting grooves. By adopting the above technical solution, the limiting protrusions provided on both sides of the top of the movable socket housing of the present application cooperate with the second limiting grooves provided on both sides of the plug housing, so that the movable socket housing can move up and down within a limited range. This design can effectively absorb the deviation generated during the plugging and unplugging process, improve the stability and reliability of the connector, and reduce the risk of damage caused by poor alignment.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up a movable socket housing and a fixed socket housing, as well as a multi-level clamping structure of signal terminals and power terminals, the anti-interference ability of the connector when subjected to external impact or vibration is effectively improved, ensuring a good contact state of each terminal, thereby enhancing the stability and reliability of the overall system; 2. The matching design of the protruding structure and the stepped groove on the signal terminal clamping part not only achieves high-precision positioning, but also allows floating within a certain range, solving the problem of poor contact caused by position deviation in traditional designs and further improving the working performance of the connector; 3. The elastic part design of the second signal terminal and the second power terminal enables the plug assembly and the socket assembly to better absorb external stress when they are plugged into each other, avoiding contact failure caused by vibration or impact and extending the service life of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic cross-sectional structural diagram of an embodiment of the present application; Figure 3It is a schematic diagram of the overall structure of the movable socket housing of an embodiment of the present application; Figure 4 is a schematic diagram of the connection structure of the movable socket housing and the fixed socket housing in an embodiment of the present application; Figure 5 It is a schematic diagram of the connection structure between the movable socket housing and the plug housing of an embodiment of the present application; Figure 6 is a schematic cross-sectional structural diagram of a movable socket housing and a fixed socket housing in an embodiment of the present application; Figure 7 is a schematic diagram of the structure of the second signal terminal in an embodiment of the present application; Figure 8 is a schematic diagram of the structure of the second power terminal of an embodiment of the present application; In the figure, 1, plug assembly; 11, plug housing; 111, second limiting groove; 12, first signal terminal; 13, first power terminal; 2, socket assembly; 21, fixed socket housing; 211, first limiting groove; 212, signal terminal fixed groove; 213, second sinking groove structure; 22, movable socket housing; 221, limiting block; 222, limiting protrusion; 223, signal terminal clamping groove; 224, stepped groove; 2241, first stepped portion; 2242, second stepped portion; 225, first sinking groove structure; 23, second signal terminal; 231, signal terminal contact portion; 232, signal terminal clamping portion; 2321, first sinking groove structure; 23, second signal terminal; 233, signal terminal contact portion; 234, signal terminal clamping portion; 235, second sinking groove structure; 236, signal terminal contact portion; 237, signal terminal clamping portion; 238, signal terminal clamping portion; 239, signal terminal clamping portion; 240, signal terminal clamping portion; 241, signal terminal clamping portion; 242, signal terminal clamping portion; 243, signal terminal clamping portion; 244, signal terminal clamping portion; 245, signal terminal clamping portion; 246, signal terminal clamping portion; 247, signal terminal clamping portion; 248, signal terminal clamping portion; 249, signal terminal clamping portion; 250, signal terminal clamping portion; 251, signal terminal clamping portion; 252, signal terminal clamping portion; 253, signal terminal clamping portion; 254, signal terminal clamping portion; 255, signal terminal clamping portion; 256, signal terminal clamping portion; 257, signal terminal clamping portion; 258, signal terminal clamping portion; 259, signal terminal clamping portion; 260, A protruding structure; 2322, a second protruding structure; 2323, a third protruding structure; 2324, a fourth protruding structure; 2325, a fifth protruding structure; 2326, a sixth protruding structure; 2327, a seventh protruding structure; 2328, an eighth protruding structure; 2329, a ninth protruding structure; 233, an elastic portion of a signal terminal; 234, a fixing portion of a signal terminal; 235, a welding portion of a signal terminal; 24, a second power terminal; 241, a contact portion of a power terminal; 242, a clamping portion of a power terminal; 243, an elastic portion of a power terminal; 244, a fixing portion of a power terminal; 245, a welding portion of a power terminal; 246, a cross connection structure. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 -Attached Figure 8 , the technical solutions in this application are clearly and completely described, and the described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0027] The inventor of the present application has found that the existing board-to-board connector is prone to poor contact when multiple points of contact are made. Therefore, the present application mainly adopts a floating board-to-board connector, including a plug assembly 1 and a socket assembly 2 that are plugged into each other. The plug assembly 1 includes a plug housing 11, a plurality of first signal terminals 12, and at least two pairs of first power terminals 13. The socket assembly 2 includes a fixed socket housing 21 and a movable socket housing 22, and also includes a plurality of second signal terminals 23 and at least two pairs of second power terminals 24 fixed in the fixed socket housing 21, so as to achieve the purpose of improving the connection reliability and stability. The present application is further described in detail below.

[0028] The floating board-to-board connector provided in the embodiment of the present application is referred to Figure 1 and Figure 2 , including a plug assembly 1 and a socket assembly 2 that are plugged into each other. The plug assembly 1 includes a plug housing 11, and also includes a plurality of first signal terminals 12 and at least two pairs of first power terminals 13 fixed in the plug housing 11. The socket assembly 2 includes a fixed socket housing 21 and a movable socket housing 22, and also includes a plurality of second signal terminals 23 and at least two pairs of second power terminals 24 fixed in the fixed socket housing 21, and the plurality of second signal terminals 23 and at least two pairs of second power terminals 24 are snap-connected with the inside of the movable socket housing 22. The plurality of first signal terminals 12 and the plurality of second signal terminals 23 contact each other when the plug assembly 1 and the socket assembly 2 are plugged into each other, and the at least two pairs of first power terminals 13 and the at least two pairs of second power terminals 24 contact each other when the plug assembly 1 and the socket assembly 2 are plugged into each other.

[0029] like Figure 3 , Figure 4 and Figure 5 As shown, the movable socket housing 22 of the embodiment of the present application is provided with limit blocks 221 on both sides of the bottom, and the fixed socket housing 21 is provided with first limit grooves 211 on both sides of the bottom, and the limit blocks 221 are located inside the first limit grooves 211. The design of the limit blocks 221 and the first limit grooves 211 enables the movable socket housing 22 to be accurately aligned with the fixed position, reduces the position deviation that may occur during the plugging and unplugging process, and ensures good contact performance of the signal terminal and the power terminal. The movable socket housing 22 of the embodiment of the present application is provided with limit protrusions 222 on both sides of the top, and the plug housing 11 is provided with second limit grooves 111 on both sides, and the limit protrusions 222 are located inside the second limit grooves 111 and move up and down along the second limit grooves 111. The movable socket housing 22 can move up and down within a limited range, can effectively absorb the deviation generated during the plugging and unplugging process, and improve the stability and reliability of the connector.

[0030] like Figure 6 and Figure 7As shown, a plurality of signal terminal engaging grooves 223 are provided inside the movable socket housing 22 of the embodiment of the present application, and a stepped groove 224 is provided inside the signal terminal engaging groove 223. A plurality of second signal terminals 23 sequentially include a signal terminal contact portion 231, a signal terminal engaging portion 232, a signal terminal elastic portion 233, a signal terminal fixing portion 234 and a signal terminal welding portion 235, and the signal terminal engaging portion 232 is engaged with the movable socket housing 22. A plurality of protrusion structures cooperating with the stepped groove 224 are provided on the surface of the signal terminal engaging portion 232, and the plurality of protrusion structures are engaged with the stepped groove 224, so that the second signal terminal 23 is engaged with the signal terminal engaging groove 223.

[0031] In the specific implementation process, the plug housing 11 in the plug assembly 1 can be made of metal or plastic material, which has high mechanical strength and corrosion resistance. The first signal terminal 12 and the first power terminal 13 can be fixed in the plug housing 11 by crimping. For example, the first signal terminal 12 can be made of copper alloy material, which has good conductivity and fatigue resistance, or stainless steel material can be selected to improve durability. The first power terminal 13 can select a suitable cross-sectional size according to the current size to ensure safe and reliable power transmission. The fixed socket housing 21 in the socket assembly 2 can also be made of metal or plastic material to fix the second signal terminal 23 and the second power terminal 24. The movable socket housing 22 is one of the key components, which can move freely within a certain range and absorb external shocks and vibrations. The movable socket housing 22 can be made of spring steel or high-strength plastic, which ensures sufficient rigidity and has a certain elasticity. The second signal terminal 23 and the second power terminal 24 are firmly fixed and reliably connected in the fixed socket housing 21 through their respective contact parts, clamping parts, elastic parts, fixing parts and welding parts.

[0032] The signal terminal snap-in groove 223 of the embodiment of the present application is one of the important structures, which is not only used to fix the second signal terminal 23, but also plays a guiding and positioning role. The design of the stepped groove 224 in the snap-in groove increases the stability of the second signal terminal 23 and avoids poor contact caused by slight position deviations. In the specific implementation process, the raised structure on the signal terminal snap-in portion 232 is tightly matched with the stepped groove 224, ensuring the stability and reliability of the second signal terminal 23 after multiple plugging and unplugging. In addition, the design of the signal terminal elastic portion 233 is also very important. It can effectively compensate for tolerance accumulation and maintain continuous contact pressure, thereby improving the quality of signal transmission.

[0033] The implementation principle of this embodiment is: by optimizing the terminal structure and introducing a floating mechanism, the reliability and stability of the board-to-board connector are improved. Especially in the case of multi-point contact, the floating design can effectively absorb external stress and reduce the risk of poor contact. In addition, through the multi-level clamping structure and elastic design, it is ensured that each terminal can maintain a good contact state, thereby improving the overall performance.

[0034] like Figure 6 As shown, a first sinking groove structure 225 is provided at the opening of the signal terminal clamping groove 223 of the embodiment of the present application, and the stepped groove 224 includes a first step portion 2241 and a second step portion 2242, and the width of the first step portion 2241 is smaller than that of the second step portion 2242. The design of the first sinking groove structure 225 is to better guide the second signal terminal 23 into the clamping groove and reduce the resistance during insertion. This can simplify the assembly process to a certain extent and reduce the production cost. At the same time, the first sinking groove structure 225 can also serve as a buffer area to reduce the risk of damage caused by impact or other external forces. The design of the stepped groove 224 is divided into two levels, namely the first step portion 2241 and the second step portion 2242. The first step portion 2241 has a larger width and is mainly used for preliminary positioning and supporting the second signal terminal 23. The second step portion 2242 has a smaller width and is used to further accurately position and lock the second signal terminal 23. This layered design can not only improve the assembly accuracy, but also increase the stability of the structure. Especially for multi-point contact situations, the hierarchical stepped groove 224 design helps to ensure that each signal terminal is in the best working condition.

[0035] In addition, the width difference between the first step portion 2241 and the second step portion 2242 also helps improve the signal transmission quality. The larger first step portion 2241 can provide more contact area, reduce contact resistance, and improve signal transmission efficiency. The smaller second step portion 2242 can more accurately control the position of the signal terminal and avoid problems caused by slight offsets.

[0036] The implementation principle of this embodiment is: by adding the first sink groove structure 225 and the layered step groove 224 design, the assembly convenience and working stability of the board-to-board connector are further improved. The first sink groove structure 225 reduces the insertion resistance and reduces the assembly difficulty, while the layered step groove 224 design improves the assembly accuracy and signal transmission quality, thereby showing better performance in the case of multi-point contact.

[0037] like Figure 7As shown, the signal terminal clamping portion 232 of the second signal terminal 23 of the embodiment of the present application includes a first protrusion structure 2321, a second protrusion structure 2322, a third protrusion structure 2323, a fourth protrusion structure 2324 and a fifth protrusion structure 2325 with increasing protrusion amplitudes in sequence. The first protrusion structure 2321 and the second protrusion structure 2322 are clamped with the first step portion 2241, the third protrusion structure 2323 and the fourth protrusion structure 2324 are clamped with the second step portion 2242, and the fifth protrusion structure 2325 is clamped with the first sink structure 225. The design of multiple protrusion structures is to more finely control the positioning and fixing of the second signal terminal 23. The first protrusion structure 2321 and the second protrusion structure 2322 are clamped with the first step portion 2241 to form preliminary positioning and support. The third protrusion structure 2323 and the fourth protrusion structure 2324 are clamped with the second step portion 2242 to achieve more precise positioning and locking. The fifth protrusion structure 2325 is engaged with the first recessed groove structure 225 , which plays an additional insurance role to prevent the second signal terminal 23 from falling off.

[0038] In the specific implementation process, this multi-level card connection structure can not only improve the stability and reliability of the connector, but also extend the service life to a certain extent. Especially in the case of frequent plugging and unplugging, the multi-level card connection structure can disperse the stress and reduce the pressure concentration at a single point, thereby avoiding local wear or breakage. In addition, the multi-level card connection structure also helps to improve the quality of signal transmission, because each protrusion structure can provide additional contact points, increase the total contact area, and reduce contact resistance.

[0039] The implementation principle of this embodiment is: through the design of a multi-level snap-in structure, the stability and reliability of the board-to-board connector are greatly improved. Each level of the protruding structure has a clear functional division of labor, and together they form an efficient and stable connection system. This design is not only suitable for conventional applications, but also can cope with more severe environmental conditions, such as high-frequency vibration or large temperature changes.

[0040] like Figure 6 and Figure 7 As shown, a signal terminal fixing groove 212 is provided inside the fixed socket housing 21 of the embodiment of the present application, and a second recessed groove structure 213 is provided at the opening of the signal terminal fixing groove 212. A sixth protrusion structure 2326, a seventh protrusion structure 2327, an eighth protrusion structure 2328 and a ninth protrusion structure 2329 are provided on the signal terminal fixing portion 234 of the second signal terminal 23, and the protrusion amplitudes are increased in sequence. The sixth protrusion structure 2326, the seventh protrusion structure 2327 and the eighth protrusion structure 2328 are engaged with the signal terminal fixing groove 212, and the ninth protrusion structure 2329 is engaged with the second recessed groove structure 213.

[0041] In the specific implementation process, the signal terminal fixing groove 212 is designed to fix the second signal terminal 23 more firmly to prevent it from loosening or falling off during use. A second sinking groove structure 213 is provided at the opening of the signal terminal fixing groove 212, which can guide the second signal terminal 23 to enter the fixing groove smoothly and reduce the friction during insertion. This design not only improves the assembly efficiency, but also protects the second signal terminal 23 from damage to a certain extent. The protruding structure design of the fixing part of the second signal terminal 23 further enhances the reliability of the fixation. The sixth protruding structure 2326, the seventh protruding structure 2327 and the eighth protruding structure 2328 are snapped with the signal terminal fixing groove 212 to form a multiple locking effect. The ninth protruding structure 2329 is snapped with the second sinking groove structure 213 as an auxiliary fixing means, which further increases the stability of the second signal terminal 23. This multi-stage snap-on structure design is not only suitable for fixation under normal circumstances, but also can maintain a good fixing effect under extreme conditions (such as high-frequency vibration).

[0042] In addition, the material selection of the signal terminal fixing groove 212 is also very important. In order to ensure the wear resistance and corrosion resistance in long-term use, the fixing groove can be made of high-performance engineering plastics or aluminum alloy materials. These two materials not only have good mechanical properties, but also can resist chemical erosion and ultraviolet aging, thus extending the service life of the product.

[0043] The implementation principle of this embodiment is: by adding the signal terminal fixing groove 212 and the multi-level protrusion structure, the fixing reliability and use safety of the board-to-board connector are further improved. Especially in high-frequency vibration and harsh environments, this design can effectively prevent the signal terminal from loosening or falling off, ensuring the continuity and stability of signal transmission.

[0044] like Figure 8 As shown, the second power terminal 24 of the embodiment of the present application includes a power terminal contact portion 241, a power terminal clamping portion 242, a power terminal elastic portion 243, a power terminal fixing portion 244 and a power terminal welding portion 245 in sequence; the power terminal contact portion 241 of the second power terminal 24 is in contact with the first power terminal 13, the power terminal elastic portion 243 elastically connects the fixed socket housing 21 and the movable socket housing 22, the power terminal fixing portion 244 is fixed in the fixed socket housing 21, and the power terminal welding portion 245 extends from the bottom of the fixed socket housing 21; a cross connection structure 246 is provided on one side of the power terminal welding portion 245 of the second power terminal 24.

[0045] During the specific implementation process, the power terminal contact portion 241 of the second power terminal 24 is docked with the first power terminal 13 to provide a stable power supply. The power terminal clamping portion 242 and the fixing portion respectively realize a stable installation in the fixed socket housing 21. The power terminal elastic portion 243 is similar to the signal terminal elastic portion 233, which is used to compensate for tolerances and maintain contact pressure. The power terminal welding portion 245 can extend from the bottom of the fixed socket housing 21 to facilitate welding connection with other circuit boards. The cross connection structure 246 on one side of the power terminal welding portion 245 is designed to increase the stability and reliability of welding. Traditional welding methods may have the risk of cold welding or desoldering, while the cross connection structure 246 improves the strength and durability of welding by increasing the number of solder joints.

[0046] In the specific implementation process, the design of the power terminal elastic part 243 is also crucial. It not only has to withstand external shocks and vibrations, but also ensures that good contact pressure can be maintained under various working conditions. To this end, the power terminal elastic part 243 can be made of a material with good elasticity, such as phosphor bronze or beryllium copper. These materials not only have excellent mechanical properties, but also maintain stable elasticity and conductivity during long-term use.

[0047] In the specific implementation process, the design of the power terminal contact portion 241 and the fixing portion should also take into account the actual application requirements. The contact portion needs to be precisely connected with the first power terminal 13 to ensure the safety and stability of power transmission. The fixing portion should be firmly fixed in the fixed socket housing 21 to prevent loosening or falling off. To this end, the fixing portion can be selected in the form of a threaded or snap-on structure for quick installation and removal.

[0048] The implementation principle of this embodiment is: by optimizing the various components of the power terminal, the electrical and mechanical properties of the board-to-board connector are significantly improved. In particular, the selection of the cross connection structure 246 of the power terminal welding part 245 and the power terminal elastic part 243 greatly enhances the stability and reliability of the connector, making it adaptable to more complex use environments.

[0049] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A floating board-to-board connector, characterized in that: The invention comprises a plug assembly (1) and a socket assembly (2) which are plugged into each other, wherein the plug assembly (1) comprises a plug housing (11), and further comprises a plurality of first signal terminals (12) and at least two pairs of first power terminals (13) fixed in the plug housing (11); The socket assembly (2) comprises a fixed socket housing (21) and a movable socket housing (22), and also comprises a plurality of second signal terminals (23) and at least two pairs of second power terminals (24) fixed in the fixed socket housing (21), wherein the plurality of second signal terminals (23) and at least two pairs of second power terminals (24) are snap-connected with the interior of the movable socket housing (22); The plurality of first signal terminals (12) and the plurality of second signal terminals (23) contact each other when the plug assembly (1) and the socket assembly (2) are plugged into each other, and the at least two pairs of first power terminals (13) and the at least two pairs of second power terminals (24) contact each other when the plug assembly (1) and the socket assembly (2) are plugged into each other; The movable socket housing (22) is provided with a plurality of signal terminal clamping grooves (223) inside, and the signal terminal clamping grooves (223) are provided with stepped grooves (224); The plurality of second signal terminals (23) sequentially comprise a signal terminal contact portion (231), a signal terminal clamping portion (232), a signal terminal elastic portion (233), a signal terminal fixing portion (234) and a signal terminal welding portion (235), wherein the signal terminal clamping portion (232) is clamped with the movable socket housing (22); The surface of the signal terminal clamping portion (232) is provided with a plurality of protruding structures that cooperate with the stepped groove (224); the plurality of protruding structures are clamped into the stepped groove (224) so ​​that the second signal terminal (23) is clamped with the signal terminal clamping groove (223).

2. A floating board-to-board connector according to claim 1, characterized in that: A first sinking groove structure (225) is provided at the opening of the signal terminal clamping groove (223); The stepped groove (224) comprises a first stepped portion (2241) and a second stepped portion (2242), wherein the first stepped portion (2241) is smaller in width than the second stepped portion (2242).

3. A floating board-to-board connector according to claim 2, characterized in that: The signal terminal clamping portion (232) of the second signal terminal (23) comprises a first protruding structure (2321), a second protruding structure (2322), a third protruding structure (2323), a fourth protruding structure (2324) and a fifth protruding structure (2325) with protrusion amplitudes increasing in sequence; The first protrusion structure (2321) and the second protrusion structure (2322) are clamped with the first step portion (2241), the third protrusion structure (2323) and the fourth protrusion structure (2324) are clamped with the second step portion (2242), and the fifth protrusion structure (2325) is clamped with the first groove structure (225).

4. A floating board-to-board connector according to claim 3, characterized in that: The second power terminal (24) comprises in sequence a power terminal contact portion (241), a power terminal clamping portion (242), a power terminal elastic portion (243), a power terminal fixing portion (244) and a power terminal welding portion (245); The power terminal contact portion (241) of the second power terminal (24) contacts the first power terminal (13), the power terminal elastic portion (243) of the second power terminal (24) elastically connects the fixed socket housing (21) and the movable socket housing (22), the power terminal fixing portion (244) of the second power terminal (24) is fixed in the fixed socket housing (21), and the power terminal welding portion (245) of the second power terminal (24) protrudes from the bottom of the fixed socket housing (21).

5. A floating board-to-board connector according to claim 4, characterized in that: A cross connection structure (246) is provided on one side of the power terminal welding portion (245) of the second power terminal (24).

6. A floating board-to-board connector according to claim 4, characterized in that: The signal terminal contact portion (231) of the second signal terminal (23) contacts the first signal terminal (12), the signal terminal elastic portion (233) of the second signal terminal (23) elastically connects the fixed socket housing (21) and the movable socket housing (22), the signal terminal fixing portion (234) of the second signal terminal (23) is fixed in the fixed socket housing (21), and the signal terminal welding portion (235) of the second signal terminal (23) extends from the bottom of the fixed socket housing (21).

7. A floating board-to-board connector according to claim 6, characterized in that: A signal terminal fixing groove (212) is provided inside the fixed socket housing (21), and a second sinking groove structure (213) is provided at the opening of the signal terminal fixing groove (212).

8. A floating board-to-board connector according to claim 7, characterized in that: The signal terminal fixing portion (234) of the second signal terminal (23) is provided with a sixth protrusion structure (2326), a seventh protrusion structure (2327), an eighth protrusion structure (2328) and a ninth protrusion structure (2329) with increasing protrusion amplitudes in sequence; The sixth protrusion structure (2326), the seventh protrusion structure (2327) and the eighth protrusion structure (2328) are snap-fitted to the signal terminal fixing groove (212), and the ninth protrusion structure (2329) is snap-fitted to the second recessed groove structure (213).

9. A floating board-to-board connector according to any one of claims 1 to 8, characterized in that: Limit blocks (221) are provided on both sides of the bottom of the movable socket housing (22), and first limit grooves (211) are opened on both sides of the bottom of the fixed socket housing (21), and the limit blocks (221) are located inside the first limit grooves (211).

10. A floating board-to-board connector according to any one of claims 1 to 8, characterized in that: Limiting protrusions (222) are provided on both sides of the top of the movable socket housing (22), and second limiting grooves (111) are provided on both sides of the plug housing (11); the limiting protrusions (222) are located inside the second limiting grooves (111) and move up and down along the second limiting grooves (111).

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