Limiting components and server at the rear of the fixed expansion card

Abstract

This application discloses a limiting component for fixing the tail of an expansion card and a server. The limiting component includes a support beam and multiple clamping groups. The support beam is connected to the server chassis base and extends along the arrangement direction of multiple graphics processors. Each clamping group is movably connected to the support beam, allowing the position of each clamping group on the support beam to be adjustable. Each clamping group includes two clamping structures arranged in pairs. The two clamping structures in the same clamping group are used to clamp and limit the tail of the same graphics processor on both sides. This solution at least addresses the problem in related technologies where the tail fixing components of expansion cards are complex, severely affecting the overall design and performance of the server, and causing the expansion card to wobble or jump at the tail.

Description

Technical Field

[0001] This application relates to the field of server structural design technology, and in particular to a limiting component for fixing the tail of an expansion card and a server. Background Technology

[0002] In the server industry, expansion cards are widely used. They connect to slots on the motherboard to expand various functions. However, in related technologies, expansion cards are usually secured only by their gold fingers contacting the slot on the motherboard. This securing method is limited to the head of the expansion card, while the tail often lacks an effective securing device. During server transportation, due to unavoidable vibrations and impacts, expansion cards are prone to wobbling from side to side in the slot, and in severe cases, they may even come out upwards, causing the connection between the expansion card and the motherboard to be interrupted. This seriously affects the normal operation of the server and may even cause physical damage to the expansion card. Utility Model Content

[0003] This application provides a limiting component and server for fixing the tail of an expansion card, so as to at least solve the problem that the tail fixing component of the expansion card in the related art is relatively complex, which seriously affects the overall design and performance of the server, and there is a problem of the tail of the expansion card shaking or jumping.

[0004] This application provides a limiting component for fixing the tail of an expansion card, including a support beam and multiple clamping groups. The support beam is used to connect to the chassis base of a server and extends along the arrangement direction of the multiple expansion cards. The multiple clamping groups are all movably connected to the support beam so that the position of each clamping group on the support beam can be adjusted. Each clamping group includes two clamping structures arranged in pairs. The two clamping structures in the same clamping group are used to clamp and limit the tail of the same expansion card on both sides.

[0005] In one exemplary embodiment, two clamping structures in the same clamping group are independently disposed on the support beam, and the positions of the two clamping structures in the same clamping group on the support beam are adjustable to adjust the clamping distance between the two clamping structures; to accommodate expansion cards of different widths; and / or to accommodate the width of at least two adjacent expansion cards.

[0006] In one exemplary embodiment, the clamping structure slides into the support beam, and the clamping assembly further includes fasteners for securing the clamping structure when it slides into position, so that the clamping structure can effectively clamp the expansion card.

[0007] In an exemplary embodiment, the clamping structure includes a connected assembly and a clamping block. The assembly is slidably engaged with a support beam, and the clamping block is connected to the assembly. The clamping block extends in a direction away from the support beam, and the extension direction is perpendicular to the support beam. The clamping block has a clamping surface. The two clamping surfaces of the two clamping structures arranged in pairs are arranged opposite to each other to effectively clamp the two side surfaces of the tail portion of the expansion card.

[0008] In one exemplary embodiment, the limiting component further includes a cushioning pad disposed on the clamping surface.

[0009] In one exemplary embodiment, the clamping structure is L-shaped, with two clamping structures arranged back to back, and the clamping surface is planar.

[0010] In one exemplary embodiment, the support beam has a first guide rail that extends along the length of the support beam; the assembly part has a first guide groove for engaging with the first guide rail; or, the support beam has a second guide groove that extends along the length of the support beam; the assembly part has a second guide rail for engaging with the second guide groove.

[0011] In an exemplary embodiment, the supporting beam includes a beam body and two support blocks. The beam body has a guide hole that extends along the length of the beam body, forming a first guide rail on both sides of the beam body in the width direction. The two support blocks are connected to both ends of the beam body in the length direction, and the extension direction of the two support blocks is consistent with the extension direction of the clamping structure and is perpendicular to the beam body. The beam body is connected to the chassis base through the two support blocks.

[0012] In an exemplary embodiment, the assembly includes a limiting block and a supporting boss, wherein the limiting block is connected to a clamping block; the supporting boss protrudes from the surface of the limiting block opposite to the clamping block; the assembly also has a locking hole and a fastener, the locking hole passing through the limiting block and the supporting boss in sequence, and the tail of the fastener passing through the locking hole, such that the head of the fastener forms a first guide groove for cooperating with a first guide rail between at least the surface of the limiting block opposite to the clamping block; wherein the tail of the fastener is threadedly engaged with the locking hole, so that when the clamping structure slides into place, the fastener is tightened so that the end of the fastener abuts against the surface of the supporting beam facing the expansion card.

[0013] This application also provides a server, including a chassis base, a top cover, a motherboard, multiple expansion cards, and a limiting component. The chassis base has a receiving slot; the top cover is disposed at the opening of the receiving slot and is detachably connected to the chassis base; the motherboard is disposed in the receiving slot; the heads of the multiple expansion cards are all plugged into the motherboard; the support beam of the limiting component is detachably connected to the surface of the top cover facing the receiving slot; multiple clamping groups of the limiting component are movably connected to the support beam, and at least two clamping structures in each clamping group are used to clamp and limit the tail sides of the same expansion card. The limiting component is the aforementioned limiting component.

[0014] This application provides a limiting component for fixing the tail of an expansion card, including a support beam and multiple clamping groups. The support beam is used to connect to the chassis base of a server and extends along the arrangement direction of the multiple expansion cards. The multiple clamping groups are all movably connected to the support beam so that the position of each clamping group on the support beam can be adjusted. Each clamping group includes two clamping structures arranged in pairs. The two clamping structures in the same clamping group are used to clamp and limit the tail of the same expansion card on both sides.

[0015] By connecting the support beam to the server chassis base and extending along the arrangement direction of multiple expansion cards, and with multiple clamping groups movably connected to the support beam, the position of each clamping group on the support beam can be adjusted to accommodate expansion cards at different locations. This effectively clamps and limits the expansion cards at corresponding positions. Furthermore, two clamping structures in the same clamping group can clamp and limit at least both sides of the tail of the same expansion card, ensuring the reliability of clamping the tail of the expansion card. During server transportation or operation, this effectively prevents the tail of the expansion card from shaking or jumping due to poor fixation, thereby ensuring the reliability of the connection between the expansion card and the motherboard, and ultimately ensuring the operational stability and transportation safety of the server.

[0016] Furthermore, the limiting component provided in this application has a relatively simple structure, and the supporting beam is connected to the top cover of the server, which will not occupy a large space in the server's receiving slot. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a partial structural diagram of a server provided in an embodiment of this application;

[0019] Figure 2 for Figure 1 A schematic diagram of the limit component of the server in the diagram;

[0020] Figure 3 for Figure 2 A schematic diagram of the supporting beam of the limiting component in the middle;

[0021] Figure 4 for Figure 2 A schematic diagram of the clamping structure of the limiting component in the diagram.

[0022] The above figures include the following reference numerals:

[0023] 1. Chassis base; 3. Motherboard; 4. Expansion card; 5. Limiting components;

[0024] 10. Support beam; 11. First guide rail; 12. Beam body; 121. Guide through hole; 13. Support block;

[0025] 20. Clamping assembly; 21. Clamping structure; 211. Assembly part; 2111. Limiting block; 2112. Support boss; 212. Clamping block; 22. Fastener. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0027] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] The embodiments of this application provide a limiting component and server for fixing the tail of an expansion card. The device is described in detail in conjunction with the structure and working principle of the limiting component and server for fixing the tail of the expansion card (the technical terms involved must be explained).

[0030] It should be noted that in this application, the server includes a chassis base 1, a top cover, a motherboard 3, multiple expansion cards 4, and a limiting component 5. The chassis base 1 has a receiving groove; the top cover is disposed at the opening of the receiving groove and is detachably connected to the chassis base 1; the motherboard 3 is disposed in the receiving groove; the heads of the multiple expansion cards 4 are all plugged into the motherboard 3; the support beam 10 of the limiting component 5 is detachably connected to the surface of the top cover facing the receiving groove; multiple clamping groups 20 of the limiting component 5 are movably connected to the support beam 10, and at least two clamping structures 21 in each clamping group 20 are used to clamp and limit the tail sides of the same expansion card 4. The limiting component 5 is the limiting component described above and below.

[0031] Furthermore, the top cover is secured to the chassis base 1 using I-beams and a top cover lock, forming a stable and fixed connection between the top cover and the chassis base 1. Technically, the combined use of the I-beams and the top cover lock provides additional structural stability and rapid installation capability. In principle, the I-beams, as a connecting component, ensure a firm connection between the top cover and the chassis base 1, while the top cover lock allows for opening and closing without compromising structural integrity, facilitating maintenance and inspection. In terms of effectiveness, this connection method not only ensures the stability of the top cover but also simplifies the installation process and improves efficiency. In other embodiments, the same fixing effect can be achieved through welding, bonding, or other types of locks, suitable for different production environments and usage requirements.

[0032] It should be noted that in this application, the limiting component effectively clamps the tail of the vertically inserted expansion card 4.

[0033] like Figures 1 to 4 As shown, the limiting assembly for fixing the tail of the expansion card includes a support beam 10 and multiple clamping groups 20. The support beam 10 is used to connect to the server chassis base 1 and extends along the arrangement direction of the multiple expansion cards 4. The multiple clamping groups 20 are all movably connected to the support beam 10 so that the position of each clamping group 20 on the support beam 10 can be adjusted. Each clamping group 20 includes two clamping structures 21 arranged in pairs. The two clamping structures 21 in the same clamping group 20 are used to clamp and limit the tail sides of the same expansion card 4.

[0034] By connecting the support beam 10 to the server chassis base 1 and extending it along the arrangement direction of multiple expansion cards 4, and with multiple clamping groups 20 movably connected to the support beam 10, the position of each clamping group 20 on the support beam 10 can be adjusted to accommodate expansion cards 4 at different locations, effectively clamping and limiting the expansion cards 4 at corresponding positions. In addition, the two clamping structures 21 in the same clamping group 20 can clamp and limit at least both sides of the tail of the same expansion card 4, ensuring the reliability of clamping the tail of the expansion card 4. During server transportation or server operation, it can effectively prevent the tail of the expansion card 4 from shaking or jumping due to poor fixation, thereby ensuring the reliability of the connection between the expansion card 4 and the motherboard 3, and thus ensuring the operational stability and transportation safety of the server.

[0035] Furthermore, the limiting component 5 provided in this application has a relatively simple structure, and the supporting beam 10 is connected to the server chassis base 1, which will not occupy a large space in the server's receiving slot.

[0036] It should be noted that, in the embodiments of this application, reference is made to... Figures 1 to 4 As shown, the two clamping structures 21 in the same clamping group 20 are independently arranged on the support beam 10, and the positions of the two clamping structures 21 on the support beam 10 are adjustable to adjust the clamping distance between the two clamping structures 21; to adapt to expansion cards 4 of different widths; and / or to adapt to the width of at least two adjacent expansion cards 4. This allows the two clamping structures 21 to adapt to expansion cards 4 of different widths by adjusting the clamping distance between them. Furthermore, if multiple expansion cards 4 need to be arranged close together, the two clamping structures 21 in the same clamping group 20 can be used to effectively clamp multiple expansion cards 4, saving the number of clamping groups 20 and contributing to the lightweight design of the server.

[0037] Furthermore, the clamping structure 21 is designed to accommodate the tails of expansion cards 4 of different widths. The mounting part 211 moves along the first guide rail of the supporting beam 10 to achieve the fitting and fixing of the tails of expansion cards 4 of different widths. Of course, it can also achieve the fitting and fixing of different numbers of expansion cards 4. Technically, the size design of the clamping structure 21 takes into account the common variation range of the tail width of the expansion cards 4, ensuring its applicability to different models of expansion cards 4. In principle, the cooperation between the mounting part 211 and the first guide rail allows the clamping structure 21 to move freely within a certain range, thereby adapting to the tails of expansion cards 4 of different widths. In terms of effectiveness, this design allows a single fixing device to serve multiple expansion card 4 configurations, improving the flexibility and economy of the device. In other embodiments, its applicability can be further expanded by increasing the number of clamping structures 21 or designing a telescopic clamping structure 21 mechanism to meet more diverse expansion card 4 layout requirements.

[0038] It should be noted that in this application, the clamping structure 21 and the support beam 10 are detachably connected. This ensures ease of installation and disassembly between the clamping structure 21 and the support beam 10.

[0039] It should be noted that, in this application, at least the surface of the support beam 10 facing the expansion card 4 is flat to effectively fit against the tail end face of the expansion card 4. This ensures reliable contact between the surface of the support beam 10 facing the expansion card 4 and the tail end face of the expansion card 4, thereby ensuring that the surface of the support beam 10 facing the expansion card 4 can constrain the vertical movement of the expansion card 4 within the server. Combined with the two clamping structures 21 in the aforementioned clamping group 20, which clamp the tail sides of the expansion card 4, this ensures reliable limiting of the tail sides of the expansion card 4 by the two clamping structures 21, constraining the horizontal movement of the expansion card 4 within the server, and thus ensuring reliable insertion of the head of the expansion card 4 into the slot of the motherboard 3.

[0040] It should be noted that in this application, the clamping structure 21 slides in conjunction with the supporting beam 10, and the clamping assembly 20 also includes a fastener 22. The fastener 22 is used to tighten the clamping structure 21 when it slides into place, so that the clamping structure 21 can effectively clamp the expansion card 4. In this way, the fastener 22 effectively limits the clamping structure 21 when it slides into place, thereby ensuring that the fastener 22 will not interfere with the sliding of the clamping structure 21 during the sliding process. Only when the clamping structure 21 slides into place can the operator operate the fastener 22 to effectively tighten the clamping structure 21, ensuring that the clamping structure 21 can effectively clamp the two sides of the tail of the expansion card 4. This ensures that during server operation or server transportation, the expansion card 4 will not shake or jump due to poor tail fixation, thereby ensuring the operational stability and transportation safety of the server.

[0041] Optionally, fastener 22 is a locking screw.

[0042] Furthermore, the fasteners 22 on the assembly section 211 are used to fix the clamping structure 21 to the support beam 10 after it slides to the target position, thus achieving a stable clamping of the tail of the expansion card 4. Technically, the fasteners 22 are installed using standard threaded connection technology, ensuring reliable fixation between the clamping structure 21 and the support beam 10. In principle, the tightening process of the fasteners 22 generates sufficient friction to prevent further sliding of the clamping structure 21, while simultaneously applying pressure to the tail of the expansion card 4 through the clamping structure 21, thereby fixing the expansion card 4. In terms of effect, this design effectively limits the swaying of the tail of the expansion card 4 in any direction, improving the overall stability of the server. In other embodiments, the locking mechanism can employ snaps, spring pins, or other types of fasteners to adapt to different operational convenience and safety requirements.

[0043] like Figure 2 and Figure 4As shown, the clamping structure 21 includes an assembly part 211 and a clamping block 212 connected to each other. The assembly part 211 is slidably engaged with the support beam 10, and the clamping block 212 is connected to the assembly part 211. The clamping block 212 extends in a direction away from the support beam 10, and the extension direction is perpendicular to the support beam 10. The clamping block 212 has a clamping surface. The two clamping surfaces of the two clamping structures 21 arranged in pairs are arranged opposite to each other to effectively clamp the two side surfaces of the tail of the expansion card 4. In this way, by configuring the clamping structure 21 to include a connected assembly part 211 and a clamping block 212, with the assembly part 211 slidingly engaged with the support beam 10 and the clamping block 212 connected to the assembly part 211 and extending in a direction away from the support beam 10 and perpendicular to the support beam 10, it is ensured that the clamping surface of the clamping block 212 can reliably fit against the two rear surfaces of the expansion card 4, thereby ensuring sufficient contact between the clamping surface of the clamping block 212 and the two rear surfaces of the expansion card 4. The contact area is increased to ensure the clamping reliability of the clamping surfaces of the two clamping structures 21 on both sides of the tail of the expansion card 4. In addition, by setting the clamping block 212 to a structure perpendicular to the support beam 10, it is ensured that the surface of the support beam 10 facing the expansion card 4 can effectively fit with the tail end face of the expansion card 4 as much as possible. This ensures the reliability of the support beam 10 facing the expansion card 4 in limiting the expansion card 4 in the vertical direction of the server, thereby ensuring the effective limiting of the expansion card 4 by the limiting component 5.

[0044] It should be noted that, in one embodiment of this application (not shown), the limiting component further includes a buffer pad disposed on the clamping surface. This buffer pad prevents scratches on the two sides of the tail of the expansion card 4, thereby protecting the expansion card 4 and ensuring its integrity and operational reliability. Furthermore, it also enhances the friction between the clamping surface and the expansion card 4.

[0045] Optionally, the cushioning pad is attached to the clamping surface, or the cushioning pad is embedded in the clamping surface.

[0046] Optionally, the cushioning pad is a rubber cushioning pad.

[0047] Furthermore, a rubber buffer pad is embedded in the clamping surface of the clamping block 212 of the clamping structure 21. The rubber buffer pad contacts the tail of the expansion card 4, providing protection and enhancing friction. Technically, the embedding of the rubber buffer pad employs precision molding technology to ensure a perfect fit between the pad and the clamping surface. In principle, the elastic properties of the rubber material can absorb the impact force of the tail of the expansion card 4 during vibration, while its high coefficient of friction increases the gripping force between the expansion card 4 and the clamping structure 21. In terms of effect, the use of the rubber buffer pad significantly reduces the relative displacement of the tail of the expansion card 4 during vibration, reduces the risk of poor contact of the gold fingers, and protects the expansion card 4 from physical damage. In other embodiments, other types of elastic materials, such as silicone or polyurethane foam, can also be used to adapt to different working environments or improve cost-effectiveness.

[0048] like Figure 2 and Figure 4 As shown, the clamping structure 21 is L-shaped, with two clamping structures 21 arranged back-to-back in pairs, and the clamping surface is flat. By setting the clamping structure 21 in an L-shaped structure, the reliability of the connection between the clamping structure 21 and the supporting beam 10 is ensured, while also ensuring the effectiveness of the clamping structure 21 in clamping the expansion card 4. Furthermore, the L-shaped clamping structure 21 does not occupy a large installation space in the server's mounting slot, ensuring the overall compactness of the server structure.

[0049] like Figure 2 and Figure 3 As shown, the support beam 10 has a first guide rail 11, which extends along the length of the support beam 10; the assembly part 211 has a first guide groove for engaging with the first guide rail 11. In this way, the engagement of the first guide rail 11 and the first guide groove ensures the reliability and smoothness of the sliding of the clamping structure 21 on the support beam 10.

[0050] It should be noted that, in an embodiment of this application (not shown), the support beam 10 has a second guide groove that extends along the length of the support beam 10; the assembly part 211 has a second guide rail for engaging with the second guide groove. Thus, the engagement of the second guide groove and the second guide rail ensures the reliability and smoothness of the sliding of the assembly part 211 on the support beam 10.

[0051] like Figure 2 and Figure 3As shown, the supporting beam 10 includes a beam body 12 and two support blocks 13. The beam body 12 has a guide hole 121, which extends along the length of the beam body 12, so that the guide hole 121 forms a first guide rail 11 on both sides of the width of the beam body 12. The two support blocks 13 are respectively connected to the two ends of the beam body 12 along the length, and the extension direction of the two support blocks 13 is consistent with the extension direction of the clamping structure 21 and is perpendicular to the beam body 12. The beam body 12 is connected to the chassis base 1 through the two support blocks 13. In this way, by providing guide holes 121 on the crossbeam body 12, the guide holes 121 form first guide rails 11 on both sides of the width direction of the crossbeam body 12. This allows the crossbeam body 12 to function as both a beam and a guide rail. This ensures that the crossbeam body 12 does not occupy a large installation space in the height direction of the receiving slot, while also ensuring that the structure supporting the crossbeam 10 is simple enough. This helps to reduce the manufacturing difficulty of the limiting components and further ensures the economic efficiency of the server.

[0052] like Figure 4 As shown, the assembly part 211 includes a limiting block 2111 and a supporting boss 2112, wherein the limiting block 2111 is connected to the clamping block 212; the supporting boss 2112 protrudes from the surface of the limiting block 2111 facing away from the clamping block 212; the assembly part 211 also has a locking hole and a fastener 22, the locking hole passing through the limiting block 2111 and the supporting boss 2112 in sequence, and the tail of the fastener 22 passing through the locking hole, so that the head of the fastener 22 forms a first guide groove for cooperating with the first guide slide rail at least between the head of the fastener 22 and the surface of the limiting block 2111 facing away from the clamping block 212; wherein the tail of the fastener 22 is threadedly engaged with the locking hole, so that when the clamping structure 21 slides into place, the end of the fastener 22 abuts against the surface of the supporting beam 10 facing the expansion card 4 by tightening the fastener 22. In this way, by setting the assembly part 211 to a structure with a locking hole, and the locking hole passing through the limiting block 2111 and the support boss 2112 in sequence, and the tail of the fastener 22 passing through the locking hole, during the sliding of the clamping structure 21 on the support beam 10, the end of the fastener 22 does not contact the surface of the support beam 10 facing the expansion card 4, thus ensuring the sliding reliability of the clamping structure 21 on the support beam 10. When the clamping structure 21 slides into place, by screwing the fastener 22, the end of the fastener 22 passes through the locking hole and abuts against the surface of the support beam 10 facing the expansion card 4, thereby ensuring the limiting reliability of the clamping structure 21, and thus ensuring the clamping effectiveness of the clamping structure 21 on the expansion card 4.

[0053] It should be noted that in this application, the support beam 10 is made of aluminum alloy to ensure that it has sufficient strength and lightweight characteristics. Technically, aluminum alloy is chosen based on its good mechanical properties and low weight, making it a common material in server hardware. In principle, the high strength of aluminum alloy means it can withstand large loads without deformation, while its lightweight nature helps reduce the overall weight of the structure, improving the ease of handling the server. In terms of effectiveness, the application of this material allows the support beam 10 to effectively support and guide the clamping structure 21 without adding excessive weight, maintaining the server's high efficiency and portability. In other embodiments, materials such as carbon fiber composites or high-strength steel can also be considered to meet higher strength or corrosion resistance requirements in specific scenarios.

[0054] It should be noted that in this application, the clamping structure 21 is made of engineering plastic, and the material selection between the sliding clamping structure 21 and the supporting beam 10 achieves a balance between lightweight and durability. Technically, engineering plastics are ideal materials for manufacturing the sliding clamping structure 21 due to their good wear resistance, chemical corrosion resistance, and low cost. In principle, the low density of engineering plastics helps reduce the weight of the clamping structure 21 and lower the load on the overall structure, while its durability ensures that the clamping structure 21 is not easily worn or damaged during repeated sliding and fixing processes. In terms of effectiveness, the application of this material allows the clamping structure 21 to perform its function stably for a long time, while reducing maintenance costs. In other embodiments, materials such as metal alloys or high-performance polymers can also be selected to adapt to higher temperature environments or more complex mechanical stress conditions.

[0055] It should be noted that in this application, the physical cooperation between the first guide groove of the assembly part 211 and the first guide rail of the supporting beam 10, coupled with the mechanical fixing of the fastener 22 (locking screw), forms a dual mechanism of dynamic adjustment and static locking, ensuring that the tail of the expansion card 4 is effectively constrained in any state. In terms of effectiveness, the technical solution in this embodiment not only improves the stability of the tail of the expansion card 4, but also avoids damage that may be caused by direct contact through the rubber buffer pad, while allowing the device to be used for expansion cards 4 of different widths, greatly enhancing its versatility. In other embodiments, the tail fixing requirements of the expansion card 4 in different application scenarios can also be solved by changing the shape of the first guide rail or using magnetic fixing. For example, in environments requiring frequent disassembly, magnetic fixing can provide a faster installation and disassembly experience.

[0056] It should be noted that in this application, the assembly part 211 slides laterally along the first guide rail of the supporting beam 10 via the first guide groove on it. The fit between the first guide groove and the first guide rail ensures smooth sliding and positional stability. Technically, the design of the first guide groove and the first guide rail follows the principles of precision manufacturing and tolerance control, ensuring that the fit between the two is both tight and flexible. In principle, the special shape of the first guide rail provides guidance and limiting functions. The movement of the assembly part 211 is strictly limited by the first guide rail, thereby ensuring the straightness and stability of the clamping structure 21 during sliding. In terms of effect, this design allows the clamping structure 21 to accurately position the tail of each expansion card 4, effectively limiting the shaking of the expansion card 4 and improving the safety of the server during transportation and operation. In other embodiments, the first guide rail can be designed in other shapes, such as V-shaped or U-shaped, as long as the same guiding and limiting effects can be achieved.

[0057] It should be noted that in this application, the ease-of-use design of the limiting component 5 enables the clamping structure 21 to move quickly along the first guide rail and be fixed by the fastener 22, facilitating rapid installation and subsequent maintenance. Technically, the ease-of-use design encompasses the smoothness of the sliding of the clamping structure 21, the ease of use of the fastener 22, and the rapid installation mechanism of the entire device. In principle, by simplifying the operation process and improving the compatibility between components, users can complete the installation and adjustment of the device without specialized tools. In terms of effectiveness, this design significantly shortens the time required for server assembly and maintenance, reduces operational difficulty, and enhances the user experience. In other embodiments, the ease of operation and the durability of the device can be further improved by introducing an automatic locking mechanism or using more advanced materials, such as using shape memory metal materials, which can automatically recover to a preset shape at a specific temperature, thereby achieving automatic positioning and fixing functions.

[0058] The technical solution of this application relates to the usage process. Specifically, during use, the support beam 10 is first fixed to the side wall of the chassis base 1 using T-shaped nails at both ends of the clamping structure 21, ensuring that the surface of the support beam 10 facing the expansion card 4 contacts the top surface of the expansion card 4 to achieve vertical fixation. Next, according to the width of the expansion card 4, the movable L-shaped clamping structure 21 is slid to a suitable position, so that one side fits tightly against the side of the expansion card 4, and then the fastener 22 is tightened, i.e., the locking screw is tightened, completing the lateral fixation. During server transportation and use, the support beam 10 and the movable L-shaped clamping structure 21 work together to effectively prevent the expansion card 4 from shaking and falling out, ensuring a stable connection between the expansion card 4 and the motherboard 3. In addition, when multiple adjacent expansion cards 4 need to be installed, a pair of movable L-shaped clamping structures 21 can be shared to achieve efficient space utilization. The entire installation and disassembly process of the limiting assembly is simple and quick, requiring no professional tools, greatly improving the efficiency of server maintenance and upgrades.

[0059] The foregoing has provided a detailed description of a limiting component and server for fixing the tail of an expansion card, as provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A limiting component for fixing the tail of an expansion card, characterized in that, include: A support beam (10) is provided for connection to the server chassis base (1) and extends along the arrangement direction of the plurality of expansion cards (4); Multiple clamping groups (20) are provided, and each of the multiple clamping groups (20) is movably connected to the support beam (10) so that the position of each clamping group (20) on the support beam (10) can be adjusted. Each clamping group (20) includes two clamping structures (21) arranged in pairs. Among them, the two clamping structures (21) in the same clamping group (20) are used to clamp and limit the tail sides of the same expansion card (4).

2. The limiting component according to claim 1, characterized in that, Two clamping structures (21) in the same clamping group (20) are independently arranged on the support beam (10), and the positions of the two clamping structures (21) in the same clamping group (20) on the support beam (10) are adjustable to adjust the clamping distance between the two clamping structures (21); To accommodate expansion cards (4) of different widths; and / or, To accommodate the width of at least two adjacent expansion cards (4).

3. The limiting component according to claim 1, characterized in that, The clamping structure (21) is slidably engaged with the support beam (10). The clamping assembly (20) also includes a fastener (22), which is used to fasten the clamping structure (21) when it slides into place, so that the clamping structure (21) can effectively clamp the expansion card (4).

4. The limiting component according to claim 3, characterized in that, The clamping structure (21) includes a connected assembly part (211) and a clamping block (212). The assembly part (211) is slidably engaged with the support beam (10). The clamping block (212) is connected to the assembly part (211). The clamping block (212) extends in a direction away from the support beam (10) and the extension direction is perpendicular to the support beam (10). The clamping block (212) has a clamping surface, and the two clamping surfaces of the two clamping structures (21) arranged in pairs are arranged opposite each other to effectively clamp the two side surfaces of the tail portion of the expansion card (4).

5. The limiting component according to claim 4, characterized in that, The limiting component also includes a buffer pad, which is disposed on the clamping surface.

6. The limiting component according to claim 4, characterized in that, The clamping structure (21) is L-shaped, and the two clamping structures (21) are arranged back to back, and the clamping surface is a plane.

7. The limiting component according to claim 4, characterized in that, The supporting beam (10) has a first guide rail (11), and the first guide rail (11) extends along the length direction of the supporting beam (10); The assembly part (211) has a first guide groove for cooperating with the first guide rail (11); or, The supporting beam (10) has a second guide groove, and the second guide groove extends along the length direction of the supporting beam (10); The assembly part (211) has a second guide rail for engaging with the second guide groove.

8. The limiting component according to claim 7, characterized in that, The supporting beam (10) includes: A crossbeam body (12) is provided with a guide hole (121), and the guide hole (121) extends along the length direction of the crossbeam body (12) so that the guide hole (121) forms the first guide slide rail (11) on both sides of the width direction of the crossbeam body (12). Two support blocks (13) are connected to the two ends of the crossbeam body (12) along its length, and the extension direction of the two support blocks (13) is consistent with the extension direction of the clamping structure (21) and is perpendicular to the crossbeam body (12). The crossbeam body (12) is connected to the chassis base (1) through the two support blocks (13).

9. The limiting component according to claim 8, characterized in that, The assembly part (211) includes: A limiting block (2111) is connected to the clamping block (212); A support boss (2112) is provided on the surface of the limiting block (2111) on the side opposite to the clamping block (212); The assembly part (211) also has a locking hole and the fastener (22). The locking hole passes through the limiting block (2111) and the support boss (2112) in sequence. The tail of the fastener (22) passes through the locking hole so that the head of the fastener (22) forms a first guide groove for cooperating with the first guide rail between at least the surface of the limiting block (2111) on the side away from the clamping block (212). The tail of the fastener (22) is threaded into the locking hole so that when the clamping structure (21) slides into place, the fastener (22) is tightened so that the end of the fastener (22) abuts against the surface of the support beam (10) on the side facing the expansion card (4).

10. A server, characterized in that, include: The chassis base (1) has a receiving groove; The top cover is provided over the opening of the receiving groove and is detachably connected to the chassis base (1); Mainboard (3), the mainboard (3) is disposed in the receiving slot; Multiple expansion cards (4), the heads of the multiple expansion cards (4) are all plugged into the motherboard (3); The limiting component (5) has a support beam (10) detachably connected to the surface of the chassis base (1) facing the receiving groove. Multiple clamping groups (20) of the limiting component (5) are movably connected to the support beam (10), and two clamping structures (21) in each clamping group (20) are used to clamp and limit the tail sides of the same expansion card (4). The limiting component (5) is the limiting component according to any one of claims 1 to 9.

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