A floating board-to-board connector

Abstract

The application relates to a floating plate-to-plate connector, and relates to the technical field of electronic connectors. The connector comprises a plug assembly and a socket assembly which are mutually plugged, wherein 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, which realize electrical connection when the plug assembly and the socket assembly are mutually plugged. Through the optimized clamping structure and elastic components, the stability and reliability of the connection are ensured, the docking accuracy and the anti-vibration performance are improved, and the problems of poor contact and easy loosening in traditional connectors are effectively solved.

Description

TECHNICAL FIELD

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

[0002] Board-to-board connectors are widely used in electronic devices, especially in situations that require high reliability and stability. With the development of electronic products 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 adopt fixed connection mode, which is simple and reliable, but has certain limitations in some application scenarios, such as being prone to poor contact when subjected to external impact or vibration, thereby affecting the stability of the entire system.

[0003] In order to improve the reliability and stability of the board-to-board connector, existing technical solutions mainly focus on the following aspects: one is to optimize the terminal structure to enhance the contact reliability, such as increasing the elasticity and contact area of the terminal; two is to introduce a floating mechanism to allow the plug and the socket to move relative to each other, thereby absorbing external stress and deformation; three is to strengthen 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 deficiencies. Especially in the case of multi-point contact, since the number of signal terminals and power terminals is large, how to ensure that each terminal can maintain good contact state becomes a difficult problem. In addition, the traditional design often finds it difficult to achieve high-precision positioning and large-range floating at the same time, which makes the connector may cause poor contact due to slight positional deviation during actual use, and even cause short circuit and other problems. SUMMARY

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

[0006] The floating board-to-board connector provided by the present application adopts the following technical solution:

[0007] A floating board-to-board connector, comprising a plug assembly and a socket assembly that are inserted into each other, the plug assembly comprising a plug shell, and further comprising a plurality of first signal terminals and at least two pairs of first power terminals fixed in the plug shell;

[0008] The socket assembly comprises a fixed socket shell and a movable socket shell, and further comprises a plurality of second signal terminals and at least two pairs of second power terminals fixed in the fixed socket shell, which are clamped with the movable socket shell;

[0009] The plurality of first signal terminals and the plurality of second signal terminals are in contact with each other when the plug assembly and the socket assembly are inserted into each other, and the at least two pairs of first power terminals and the at least two pairs of second power terminals are in contact with each other when the plug assembly and the socket assembly are inserted into each other.

[0010] The movable socket shell is internally provided with a plurality of signal terminal clamping grooves, and a stepped groove is formed in the signal terminal clamping groove.

[0011] The plurality of second signal terminals sequentially comprise a signal terminal contact part, a signal terminal clamping part, a signal terminal elastic part, a signal terminal fixing part and a signal terminal welding part, and the signal terminal clamping part is clamped with the movable socket shell.

[0012] The surface of the signal terminal clamping part is provided with a plurality of protruding structures matched with the stepped groove, and the plurality of protruding structures are clamped into the stepped groove, so that the second signal terminal is clamped with the signal terminal clamping groove.

[0013] By adopting the above technical scheme, the high reliability connection of the floating board-to-board connector is realized. The mutual insertion design between the plug assembly and the socket assembly ensures good contact of the signal terminals and the power terminals, and improves the electrical performance and stability. The signal terminal clamping groove and the stepped groove in the movable socket shell ensure that the second signal terminal is firmly clamped in the clamping groove, preventing loosening or displacement, and enhancing the reliability and durability of the connection. The multi-section structure of the second signal terminal and the cooperation of the protruding structure and the stepped groove further improve the stability and anti-interference ability of signal transmission. The design of the protruding structure not only ensures the stable installation of the signal terminal, but also provides good mechanical strength and durability, prolonging the service life of the product. Thus, the stability and reliability of the floating board-to-board connector connection are improved.

[0014] Preferably, a first sink structure is formed at the opening of the signal terminal clamping groove.

[0015] The stepped groove comprises a first stepped part and a second stepped part, and the width of the first stepped part is smaller than that of the second stepped part.

[0016] By adopting the above technical scheme, the first sink structure opened at the opening of the signal terminal clamping groove can effectively prevent the second signal terminal from falling off during plugging and improve the reliability and stability of the connector. Meanwhile, the design of the stepped groove makes the first stepped part and the second stepped part respectively match the convex structures of different heights, ensuring the firm clamping of the signal terminal and further enhancing the overall performance of the connector.

[0017] Preferably, the signal terminal clamping part of the second signal terminal comprises first, second, third, fourth and fifth convex structures with increasing convex amplitudes;

[0018] The first and second convex structures are clamped with the first stepped part, the third and fourth convex structures are clamped with the second stepped part, and the fifth convex structure is clamped with the first sink structure.

[0019] By adopting the above technical scheme, the multiple convex structures of the signal terminal clamping part are matched with the stepped groove and the first sink structure, which can realize the stable clamping of the second signal terminal in the movable socket shell and ensure the reliability and stability of signal transmission. Among them, the first and second convex structures 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 and fourth convex structures 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 convex structure is clamped with the first sink structure, which increases the anti-falling performance of the signal terminal and makes it not easy to shift or damage during plugging.

[0020] Preferably, the second power terminal comprises, in sequence, a power terminal contact part, a power terminal clamping part, a power terminal elastic part, a power terminal fixing part and a power terminal welding part;

[0021] The power terminal contact part of the second power terminal is in contact with the first power terminal, the power terminal elastic part of the second power terminal elastically connects the fixed socket shell and the movable socket shell, the power terminal fixing part of the second power terminal is fixed in the fixed socket shell, and the power terminal welding part of the second power terminal extends from the bottom of the fixed socket shell.

[0022] By adopting the technical scheme, the structure design of the second power terminal can realize effective contact with the first power terminal, and ensure the stability and reliability of power transmission. Meanwhile, the design of the power terminal elastic part can effectively absorb the impact force and vibration in the plugging process, and improve the overall durability of the connector. In addition, the power terminal fixing part is fixed in the fixed socket shell, 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 shell, which facilitates reliable welding with other circuit boards and simplifies the assembly process.

[0023] Preferably, one side of the power terminal welding part of the second power terminal is provided with a cross connection structure.

[0024] By adopting the technical scheme, the cross connection structure provided on one side of the power terminal welding part of the second power terminal can enhance the mechanical strength and stability of the welding point, and improve the overall reliability of the connector.

[0025] Preferably, the signal terminal contact part of the second signal terminal is in contact with the first signal terminal, the signal terminal elastic part of the second signal terminal elastically connects the fixed socket shell and the movable socket shell, the signal terminal fixing part of the second signal terminal is fixed in the fixed socket shell, and the signal terminal welding part of the second signal terminal extends from the bottom of the fixed socket shell.

[0026] By adopting the technical scheme, the application ensures reliable contact between the second signal terminal and the first signal terminal, and improves the stability of signal transmission. Meanwhile, the design of the signal terminal elastic part allows the fixed socket shell and the movable socket shell to have a certain floating range, which enhances 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, preventing signal interruption problems caused by loosening. Finally, the signal terminal welding part extends from the bottom of the fixed socket shell, facilitating subsequent welding operation and simplifying the assembly process, thereby improving production efficiency.

[0027] Preferably, a signal terminal fixing groove is formed in the fixed socket shell, and a second groove structure is arranged at the opening of the signal terminal fixing groove.

[0028] By adopting the technical scheme, the signal terminal fixing groove is arranged to enable the second signal terminal to be more stably fixed in the fixed socket shell, thereby improving the overall stability of the connector. The second groove structure further enhances the connection reliability between the second signal terminal and the fixed socket shell, preventing loosening caused by vibration or impact, thereby ensuring the stability and reliability of signal transmission.

[0029] Preferably, the signal terminal fixing portion of the second signal terminal is provided with a sixth protruding structure, a seventh protruding structure, an eighth protruding structure and a ninth protruding structure with increasing protruding amplitudes in sequence.

[0030] The sixth protruding structure, the seventh protruding structure and the eighth protruding structure are clamped with the signal terminal fixing groove, and the ninth protruding structure is clamped with the second sunken groove structure.

[0031] By adopting the above technical solution, the signal terminal fixing portion of the second signal terminal is provided with a plurality of protruding structures, which can form multi-point clamping with different parts of the signal terminal fixing groove, ensuring the stability of the signal terminal in the fixed socket shell and preventing it from loosening or falling off. Among them, the sixth protruding structure, the seventh protruding structure and the eighth protruding 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 protruding structure is clamped with the second sunken groove structure, which further increases the positioning accuracy of the signal terminal, reduces the positional deviation caused by vibration or impact, and ensures the stability and reliability of signal transmission.

[0032] Preferably, both sides of the bottom of the movable socket shell are provided with limiting blocks, and both sides of the bottom of the fixed socket shell are provided with first limiting grooves, and the limiting blocks are located inside the first limiting grooves. By adopting the above technical solution, the cooperation of the limiting block and the first limiting groove ensures the stable movement of the movable socket shell in the fixed socket shell, prevents misalignment caused by external vibration or impact, and improves the overall reliability of the connector. The design of the limiting block and the first limiting groove enables the movable socket shell to accurately align the fixed position, reduces the positional deviation that may occur during plugging and unplugging, and ensures good contact performance of the signal terminal and the power terminal. By limiting the movement range of the movable socket shell, excessive wear is avoided, thereby prolonging the service life of the connector.

[0033] Preferably, both sides of the top of the movable socket shell are provided with limiting protrusions, and both sides of the plug shell are provided with second limiting grooves, 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 shell cooperate with the second limiting grooves provided on both sides of the plug shell, so that the movable socket shell can move up and down within a limited range. This design can effectively absorb the deviation generated during plugging and unplugging, improve the stability and reliability of the connector, and at the same time reduce the risk of damage caused by poor alignment.

[0034] In summary, the present application has at least one of the following beneficial technical effects:

[0035] 1. By setting movable socket shell and fixed socket shell, and signal terminal and power terminal, the multi-level card joint structure effectively improves the anti-interference ability of the connector when subjected to external impact or vibration, ensures the good contact state of each terminal, thereby enhancing the stability and reliability of the overall system;

[0036] 2. The cooperation design of the protruding structure on the signal terminal card joint part and the stepped groove not only realizes high-precision positioning, but also allows a certain range of floating, solves the poor contact problem caused by position deviation in traditional design, and further improves the working performance of the connector;

[0037] 3. The elastic part design of the second signal terminal and the second power terminal makes the plug assembly and the socket assembly better absorb external stress when they are inserted into each other, avoids contact failure caused by vibration or impact, and prolongs the service life of the connector. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is the overall structure schematic diagram of the embodiment of the application;

[0039] Figure 2 is the cross-sectional structure schematic diagram of the embodiment of the application;

[0040] Figure 3 is the overall structure schematic diagram of the movable socket shell of the embodiment of the application;

[0041] Figure 4 is the connection structure schematic diagram of the movable socket shell and the fixed socket shell of the embodiment of the application;

[0042] Figure 5 is the connection structure schematic diagram of the movable socket shell and the plug shell of the embodiment of the application;

[0043] Figure 6 is the cross-sectional structure schematic diagram of the movable socket shell and the fixed socket shell of the embodiment of the application;

[0044] Figure 7 is the second signal terminal structure schematic diagram of the embodiment of the application;

[0045] Figure 8 is the second power terminal structure schematic diagram of the embodiment of the application;

[0046] In the figure, 1, plug assembly; 11, plug shell; 111, second limiting groove; 12, first signal terminal; 13, first power terminal; 2, socket assembly; 21, fixed socket shell; 211, first limiting groove; 212, signal terminal fixing groove; 213, second sink groove structure; 22, movable socket shell; 221, limiting block; 222, limiting protrusion; 223, signal terminal clamping groove; 224, stepped groove; 2241, first stepped portion; 2242, second stepped portion; 225, first sink groove structure; 23, second signal terminal; 231, signal terminal contact portion; 232, signal terminal clamping portion; 2321, first protrusion structure; 2322, second protrusion structure; 2323, third protrusion structure; 2324, fourth protrusion structure; 2325, fifth protrusion structure; 2326, sixth protrusion structure; 2327, seventh protrusion structure; 2328, eighth protrusion structure; 2329, ninth protrusion structure; 233, signal terminal elastic portion; 234, signal terminal fixed portion; 235, signal terminal welding portion; 24, second power terminal; 241, power terminal contact portion; 242, power terminal clamping portion; 243, power terminal elastic portion; 244, power terminal fixed portion; 245, power terminal welding portion; 246, cross connection structure. DETAILED DESCRIPTION

[0047] The following description of the application will be made with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 8 The technical solutions in the present application are described clearly and completely, and the described embodiments are only possible technical implementations of the present application, not all possible implementations. Those skilled in the art can easily obtain other embodiments by combining the embodiments of the present application without creative labor, and these embodiments are also within the protection scope of the present application.

[0048] The inventor of the present application found that the existing board-to-board connector is prone to poor contact when multiple points are contacted. Therefore, the present application mainly adopts a floating board-to-board connector, which includes a plug assembly 1 and a socket assembly 2 inserted into each other. The plug assembly 1 includes a plug shell 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 shell 21 and a movable socket shell 22, and further includes a plurality of second signal terminals 23 and at least two pairs of second power terminals 24 fixed in the fixed socket shell 21. The purpose of improving connection reliability and stability is achieved, and the present application is further described in detail below.

[0049] The floating board-to-board connector provided by the embodiments of the present application is described with reference to Figure 1 and Figure 2The plug assembly 1 comprises a plug housing 11, and 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 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 clamped in the movable socket housing 22. The plurality of first signal terminals 12 and the plurality of second signal terminals 23 are in contact with 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 are in contact with each other when the plug assembly 1 and the socket assembly 2 are plugged into each other.

[0050] As shown in Figure 3 , Figure 4 and Figure 5 , the movable socket housing 22 of the embodiment of the application is provided with limiting blocks 221 on both sides of the bottom, and the fixed socket housing 21 is provided with first limiting grooves 211 on both sides of the bottom, and the limiting blocks 221 are located in the first limiting grooves 211. The design of the limiting blocks 221 and the first limiting grooves 211 enables the movable socket housing 22 to be accurately aligned with the fixed position, reduces the positional deviation that may occur during plugging and unplugging, and ensures the good contact performance of the signal terminals and the power terminals. The movable socket housing 22 of the embodiment of the application is provided with limiting protrusions 222 on both sides of the top, and the plug housing 11 is provided with second limiting grooves 111 on both sides, and the limiting protrusions 222 are located in the second limiting grooves 111 and move up and down along the second limiting grooves 111. This enables the movable socket housing 22 to move up and down within a limited range, effectively absorbs the deviation generated during plugging and unplugging, and improves the stability and reliability of the connector.

[0051] As shown in Figure 6 and Figure 7 , the movable socket housing 22 of the embodiment of the application is provided with a plurality of signal terminal clamping grooves 223, and the signal terminal clamping grooves 223 are provided with stepped grooves 224. The plurality of second signal terminals 23 sequentially comprise signal terminal contact portions 231, signal terminal clamping portions 232, signal terminal elastic portions 233, signal terminal fixed portions 234 and signal terminal welding portions 235, and the signal terminal clamping portions 232 are clamped with the movable socket housing 22. The surface of the signal terminal clamping portions 232 is provided with a plurality of protruding structures matched with the stepped grooves 224, and the plurality of protruding structures are clamped in the stepped grooves 224, so that the second signal terminals 23 are clamped with the signal terminal clamping grooves 223.

[0052] In the specific implementation process, the plug shell 11 in the plug assembly 1 can be made of metal or plastic material, with high mechanical strength and corrosion resistance. The first signal terminal 12 and the first power terminal 13 can be fixed in the plug shell 11 by crimping. For example, the first signal terminal 12 can be made of copper alloy material, with good electrical conductivity and fatigue resistance, and can also be made of stainless steel material to improve durability. The first power terminal 13 can select the appropriate cross-sectional size according to the current size to ensure safe and reliable power transmission. The fixed socket shell 21 in the socket assembly 2 can also be made of metal or plastic material, used to fix the second signal terminal 23 and the second power terminal 24. The movable socket shell 22 is one of the key components, which can move freely within a certain range to absorb external impact and vibration. The movable socket shell 22 can be made of spring steel or high-strength plastic, which not only ensures sufficient rigidity but also has a certain elasticity. The second signal terminal 23 and the second power terminal 24 are respectively fixed and reliably connected in the fixed socket shell 21 through their respective contact parts, clamping parts, elastic parts, fixed parts and welding parts.

[0053] The signal terminal clamping groove 223 of the embodiment is one of the important structures, which not only fixes the second signal terminal 23, but also plays a guiding and positioning role. The stepped groove 224 in the clamping groove increases the stability of the second signal terminal 23, avoiding poor contact caused by slight positional deviation. In the specific implementation process, the protruding structure on the signal terminal clamping part 232 is closely 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 part 233 is also very important, which can effectively compensate for tolerance accumulation and maintain continuous contact pressure, thereby improving the quality of signal transmission.

[0054] The implementation principle of the embodiment is to optimize the terminal structure and introduce the floating mechanism to improve the reliability and stability of the board-to-board connector. 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 good contact state, and the overall performance is improved.

[0055] As Figure 6As shown, the signal terminal card joint slot 223 of the embodiment of the present application is provided with a first sink structure 225 at the opening, and the stepped slot 224 includes a first stepped part 2241 and a second stepped part 2242, the width of the first stepped part 2241 being smaller than that of the second stepped part 2242. The design of the first sink structure 225 is to better guide the second signal terminal 23 into the card joint slot and reduce the resistance during insertion. In this way, the assembly process can be simplified to a certain extent and the production cost can be reduced. At the same time, the first sink structure 225 can also serve as a buffer area to reduce the risk of damage caused by impact or other external forces. The stepped slot 224 is designed in two levels, i.e., the first stepped part 2241 and the second stepped part 2242. The first stepped part 2241 has a larger width and is mainly used for preliminary positioning and supporting the second signal terminal 23. The second stepped part 2242 has a smaller width and is used for further precise positioning and locking the second signal terminal 23. This layered design not only improves the assembly accuracy, but also increases the stability of the structure. Especially for the case of multi-point contact, the layered stepped slot 224 design helps to ensure that each signal terminal is in the best working state.

[0056] In addition, the width difference between the first stepped part 2241 and the second stepped part 2242 also helps to improve the signal transmission quality. The larger first stepped part 2241 can provide more contact area, reduce contact resistance and improve signal transmission efficiency. The smaller second stepped part 2242 can more accurately control the position of the signal terminal to avoid problems caused by slight deviation.

[0057] The implementation principle of the embodiment is that by adding the first sink structure 225 and the layered stepped slot 224 design, the assembly convenience and working stability of the board-to-board connector are further improved. The first sink structure 225 reduces the insertion resistance and reduces the assembly difficulty, while the layered stepped slot 224 design improves the assembly accuracy and signal transmission quality, thereby showing better performance in the case of multi-point contact.

[0058] As Figure 7As shown, the signal terminal clamping portion 232 of the second signal terminal 23 of the embodiment of the application 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, which have protruding amplitudes increasing in sequence. The first protruding structure 2321 and the second protruding structure 2322 are clamped with the first stepped portion 2241, the third protruding structure 2323 and the fourth protruding structure 2324 are clamped with the second stepped portion 2242, and the fifth protruding structure 2325 is clamped with the first sunken groove structure 225. The design of multiple protruding structures is to control the positioning and fixing of the second signal terminal 23 more finely. The first protruding structure 2321 and the second protruding structure 2322 are clamped with the first stepped portion 2241 to form preliminary positioning and support. The third protruding structure 2323 and the fourth protruding structure 2324 are clamped with the second stepped portion 2242 to achieve more accurate positioning and locking. The fifth protruding structure 2325 is clamped with the first sunken groove structure 225, which serves as an additional safety function to prevent the second signal terminal 23 from falling off.

[0059] In the specific implementation process, this multi-stage clamping structure not only improves the stability and reliability of the connector, but also prolongs the service life to a certain extent. Especially in the case of frequent plugging and unplugging, the multi-stage clamping structure can disperse stress and reduce the concentration of pressure at a single point, thereby avoiding local wear or breakage. In addition, the multi-stage clamping structure also helps to improve the quality of signal transmission, as each protruding structure can provide additional contact points, increase the total contact area, and reduce the contact resistance.

[0060] The implementation principle of the embodiment is that through the design of the multi-stage clamping structure, the stability and reliability of the board-to-board connector are greatly improved. Each stage of the protruding structure has a clear functional division, and together they form an efficient and stable connection system. This design is not only suitable for regular applications, but also can cope with more severe environmental conditions, such as high-frequency vibration or large temperature changes.

[0061] As shown in Figure 6 and Figure 7 , the signal terminal fixing groove 212 is provided inside the fixed socket shell 21 of the embodiment of the application, and the second sunken groove structure 213 is provided at the opening of the signal terminal fixing groove 212. The signal terminal fixing portion 234 of the second signal terminal 23 is provided with a sixth protruding structure 2326, a seventh protruding structure 2327, an eighth protruding structure 2328, and a ninth protruding structure 2329, which have protruding amplitudes increasing in sequence. The sixth protruding structure 2326, the seventh protruding structure 2327, and the eighth protruding structure 2328 are clamped with the signal terminal fixing groove 212, and the ninth protruding structure 2329 is clamped with the second sunken groove structure 213.

[0062] In the implementation process, the signal terminal fixing groove 212 is designed to firmly fix the second signal terminal 23 and prevent it from loosening or falling off during use. The second sink structure 213 is provided at the opening of the signal terminal fixing groove 212, which can guide the second signal terminal 23 to smoothly enter the fixing groove and reduce the friction force 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 second signal terminal 23 fixing part further enhances the reliability of the fixation. The sixth protruding structure 2326, the seventh protruding structure 2327, and the eighth protruding structure 2328 are clamped with the signal terminal fixing groove 212, forming a multiple locking effect. The ninth protruding structure 2329 is clamped with the second sink structure 213, serving as an auxiliary fixing means to further increase the stability of the second signal terminal 23. This multi-level clamping structure design is not only suitable for regular fixation, but also can maintain good fixation effect under extreme conditions (such as high frequency vibration).

[0063] In addition, the material selection of the signal terminal fixing groove 212 is also important. In order to ensure the wear resistance and corrosion resistance during long-term use, the fixing groove can be selected from high-performance engineering plastics or aluminum alloy materials. These two materials not only have good mechanical properties, but also can resist chemical corrosion and ultraviolet aging, prolonging the service life of the product.

[0064] The implementation principle of the embodiment is to further improve the fixation reliability and use safety of the board-to-board connector by adding the signal terminal fixing groove 212 and the multi-level protruding structure. Especially in high-frequency vibration and harsh environment, this design can effectively prevent the signal terminal from loosening or falling off, ensuring the continuity and stability of signal transmission.

[0065] As shown in Figure 8 The second power terminal 24 of the embodiment of the application comprises a power terminal contact part 241, a power terminal clamping part 242, a power terminal elastic part 243, a power terminal fixing part 244, and a power terminal welding part 245 in sequence; the power terminal contact part 241 of the second power terminal 24 is in contact with the first power terminal 13, the power terminal elastic part 243 elastically connects and fixes the fixed socket shell 21 and the movable socket shell 22, the power terminal fixing part 244 is fixed in the fixed socket shell 21, and the power terminal welding part 245 extends from the bottom of the fixed socket shell 21; one side of the power terminal welding part 245 of the second power terminal 24 is provided with a cross connection structure 246.

[0066] In the specific implementation process, the power terminal contact part 241 of the second power terminal 24 is connected with the first power terminal 13, and stable power supply is provided. The power terminal clamping part 242 and the fixing part are respectively implemented to stably install in the fixed socket shell 21. The power terminal elastic part 243 is similar to the signal terminal elastic part 233, and is used to compensate the tolerance and maintain the contact pressure. The power terminal welding part 245 can be extended from the bottom of the fixed socket shell 21, and is convenient for welding connection with other circuit boards. The cross connection structure 246 on one side of the power terminal welding part 245 is designed to increase the stability and reliability of welding. The conventional welding mode may have the risk of virtual welding or welding off, and the cross connection structure 246 increases the welding strength and durability by increasing the number of welding points.

[0067] In the specific implementation process, the design of the power terminal elastic part 243 is also crucial. It not only needs to withstand external impact and vibration, but also needs to ensure that the contact pressure can be maintained in various working conditions. Therefore, the power terminal elastic part 243 can be selected to have good elasticity, such as phosphor bronze or beryllium copper. These materials not only have excellent mechanical properties, but also can maintain stable elasticity and conductivity in long-term use.

[0068] In the specific implementation process, the design of the power terminal contact part 241 and the fixing part also needs to consider the actual application requirements. The contact part needs to be accurately connected with the first power terminal 13 to ensure the safety and stability of power transmission. The fixing part is firmly fixed in the fixed socket shell 21 to prevent loosening or falling off. Therefore, the fixing part can be selected in the form of a threaded or buckle structure to facilitate quick installation and disassembly.

[0069] The implementation principle of the embodiment is that by optimizing each component of the power terminal, the electrical performance and mechanical performance of the board-to-board connector are significantly improved. Especially the cross connection structure 246 of the power terminal welding part 245 and the selection of the power terminal elastic part 243 greatly enhance the stability and reliability of the connector, so that it can adapt to more complex use environments.

[0070] The embodiments of the specific implementation mode are the preferred embodiments of the application, and are not limited to the protection scope of the application. The same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A floating board-to-board connector characterized by, The utility model relates to a plug assembly (1) and socket assembly (2) of mutual plug, the plug assembly (1) includes plug shell (11), still include a plurality of first signal terminal (12) and at least two pairs of first power terminal (13) fixed in the plug shell (11), the socket assembly (2) includes fixed socket shell (21) and movable socket shell (22), still include a plurality of second signal terminal (23) and at least two pairs of second power terminal (24) fixed in the fixed socket shell (21), a plurality of second signal terminal (23) and at least two pairs of second power terminal (24) with movable socket shell (22) inside clamping, a plurality of first signal terminal (12) and a plurality of second signal terminal (23) when the plug assembly (1) and socket assembly (2) are mutually plugged into each other and contact each other, at least two pairs of first power terminal (13) and at least two pairs of second power terminal (24) when the plug assembly (1) and socket assembly (2) are mutually plugged into each other and contact each other, movable socket shell (22) inside is equipped with a plurality of signal terminal clamping groove (223), the signal terminal clamping groove (223) is set up with ladder groove (224) in, the signal terminal clamping groove (223) opening is set up with first sunken groove structure (225), the ladder groove (224) includes first ladder part (2241) and second ladder part (2242), the first ladder part (2241) width is less than the second ladder part (2242), a plurality of second signal terminal (23) include signal terminal contact portion (231), signal terminal clamping portion (232), signal terminal elasticity portion (233), signal terminal fixed portion (234) and signal terminal welding portion (235) in proper order, signal terminal clamping portion (232) with movable socket shell (22) clamping, signal terminal clamping portion (232) surface is equipped with a plurality of with the mutual cooperation of the protruding structure of ladder groove (224), a plurality of protruding structures are inserted into the ladder groove (224), so that the second signal terminal (23) is clamped with signal terminal clamping groove (223), The signal terminal clamping groove (223) opening is set up with first sunken groove structure (225), the ladder groove (224) includes first ladder part (2241) and second ladder part (2242), the first ladder part (2241) width is less than the second ladder part (2242), The signal terminal clamping portion (232) of the second signal terminal (23) comprises first, second, third, fourth and fifth convex structures (2321, 2322, 2323, 2324 and 2325) with increasing convex amplitudes; the first and second convex structures (2321 and 2322) are clamped with the first stepped portion (2241), the third and fourth convex structures (2323 and 2324) are clamped with the second stepped portion (2242), and the fifth convex structure (2325) is clamped with the first sunken groove structure (225).

2. The floating board-to-board connector of claim 1, wherein, 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) is in contact with the first power terminal (13), the power terminal elastic portion (243) of the second power terminal (24) elastically connects the fixed socket shell (21) and the movable socket shell (22), the power terminal fixing portion (244) of the second power terminal (24) is fixed in the fixed socket shell (21), and the power terminal welding portion (245) of the second power terminal (24) extends from the bottom of the fixed socket shell (21).

3. The floating board-to-board connector of claim 2, wherein, One side of the power terminal welding portion (245) of the second power terminal (24) is provided with a cross connection structure (246).

4. The floating board-to-board connector of claim 2, wherein, The signal terminal contact portion (231) of the second signal terminal (23) is in contact with the first signal terminal (12), the signal terminal elastic portion (233) of the second signal terminal (23) elastically connects the fixed socket shell (21) and the movable socket shell (22), the signal terminal fixing portion (234) of the second signal terminal (23) is fixed in the fixed socket shell (21), and the signal terminal welding portion (235) of the second signal terminal (23) extends from the bottom of the fixed socket shell (21).

5. The floating board-to-board connector of claim 4, wherein, The fixed socket shell (21) is internally provided with a signal terminal fixing groove (212), and the opening of the signal terminal fixing groove (212) is provided with a second sunken groove structure (213).

6. The floating board-to-board connector of claim 5, wherein, The signal terminal fixing portion (234) of the second signal terminal (23) is provided with sixth, seventh, eighth and ninth convex structures (2326, 2327, 2328 and 2329) with increasing convex amplitudes; The sixth, seventh and eighth convex structures (2326, 2327 and 2328) are clamped with the signal terminal fixing groove (212), and the ninth convex structure (2329) is clamped with the second sunken groove structure (213).

7. A floating board-to-board connector according to any one of claims 1-6, wherein The bottom of the movable socket shell (22) is provided with limiting blocks (221), and the bottom of the fixed socket shell (21) is provided with first limiting grooves (211).

8. A floating board-to-board connector according to any one of claims 1-6, wherein The top of the movable socket shell (22) is provided with limiting protrusions (222), and the plug shell (11) is provided with second limiting grooves (111). The limiting protrusions (222) are located in the second limiting grooves (111) and move up and down along the second limiting grooves (111).

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