Tool-free installation structure of PCIe card and PCIe module

Abstract

The invention relates to a tool-free installation structure of a PCIe card and a PCIe module, and the tool-free installation structure of the PCIe card comprises a fixed support which is provided with a PCIe panel placement area; the lock catch is installed on the fixing support in a sliding mode through a sliding shaft and located on one side of the PCIe panel containing area, and the sliding direction of the lock catch is perpendicular to the axis of the sliding shaft; when the PCIe panel is placed in the PCIe panel placing area and the lock catch slides towards the PCIe panel placing area, the PCIe panel is locked by the lock catch; when the lock catch slides in the direction away from the PCIe panel placing area, the PCIe panel is unlocked. When the PCIe card needs to be installed, the PCIe panel can be locked by sliding the lock catch in the locking direction; when unlocking is needed, unlocking can be achieved by sliding the lock catch in the direction opposite to the locking direction, the sliding shaft and the lock catch cannot fall off on the fixing support in the whole process, locking and unlocking can be achieved by directly sliding, and the technical problems that in the related technology, screws are prone to being lost, and maintenance experience is poor are solved.

Description

Technical Field

[0001] This application relates to the field of server maintenance technology, specifically to a tool-free installation structure for a PCIe card and a PCIe module. Background Technology

[0002] Currently, server PCIe cards are among the most frequently maintained and upgraded components in server use, involving both engineering maintenance and customer-managed maintenance. Therefore, there is a strong demand for ease of installation and maintenance of PCIe cards, both from the outside in.

[0003] In related technologies, traditional PCIe cards are often fixed with screws, which require a screwdriver to disassemble during maintenance. Screws are easily lost during maintenance, resulting in a poor maintenance experience.

[0004] Therefore, it is necessary to design a new tool-free installation structure for PCIe cards to overcome the above problems. Summary of the Invention

[0005] This application provides a tool-free installation structure and PCIe module for PCIe cards, which can solve the technical problems of easy screw loss and poor maintenance experience in related technologies.

[0006] In a first aspect, embodiments of this application provide a tool-free installation structure for a PCIe card, comprising: a fixed bracket having a PCIe panel placement area; and a latch slidably mounted on the fixed bracket via a sliding shaft and located on one side of the PCIe panel placement area, the sliding direction of the latch being perpendicular to the axis of the sliding shaft; when the PCIe panel is placed in the PCIe panel placement area and the latch slides toward the PCIe panel placement area, the latch locks the PCIe panel; when the latch slides away from the PCIe panel placement area, the PCIe panel unlocks.

[0007] In conjunction with the first aspect, in one embodiment, the fixed bracket is provided with a mounting bracket, both ends of the sliding shaft pass through the mounting bracket, and a mounting groove is formed between the mounting brackets at both ends of the sliding shaft, the latch is slidably mounted in the mounting groove, and the mounting bracket restricts the degree of freedom of the latch along the axial direction of the sliding shaft.

[0008] In conjunction with the first aspect, in one embodiment, the latch is provided with a sliding groove, the sliding shaft passes through the sliding groove, the length of the sliding groove along the sliding direction of the latch is greater than the outer diameter of the sliding shaft, and the sliding shaft restricts the degree of freedom of the latch along the PCIe card insertion and removal direction through the sliding groove.

[0009] In conjunction with the first aspect, in one embodiment, the latch is provided with a spring point, the fixing bracket is provided with a limiting protrusion, and one side of the limiting protrusion has a locking stop surface; when the latch slides towards the direction close to the PCIe panel placement area to the locking position, the spring point passes over the limiting protrusion and stops at the locking stop surface.

[0010] In conjunction with the first aspect, in one embodiment, the other side of the limiting protrusion also has an unlocking stop surface. When the latch slides away from the PCIe panel placement area to the unlock position, the spring point passes over the limiting protrusion and stops at the unlocking stop surface.

[0011] In conjunction with the first aspect, in one embodiment, the top surface of the limiting protrusion has a supporting surface, the bottom surface of the latch is attached to the supporting surface, and the bottom surface of the latch has a disassembly limiting surface. When the PCIe panel is placed in the PCIe panel placement area and the latch slides to the locking position, the disassembly limiting surface moves to the PCIe panel placement area and blocks one side of the PCIe panel.

[0012] In conjunction with the first aspect, in one embodiment, the latch includes a base plate and side plates surrounding the base plate. The base plate has a window, and the spring point is connected to the base plate by a cantilever and suspended in the window. The cantilever extends axially along the sliding shaft. The side plates located at both ends of the sliding shaft have sliding grooves, the sliding shaft passes through the sliding grooves, and the sliding shaft is located in the space enclosed by the side plates.

[0013] In conjunction with the first aspect, in one embodiment, the fixing bracket has a plurality of PCIe panel placement areas, and the plurality of PCIe panel placement areas are arranged axially along the sliding axis; the fixing bracket is slidably mounted with an independent latch for each PCIe panel placement area, and the plurality of latches are mounted on the same sliding axis.

[0014] In conjunction with the first aspect, in one embodiment, the fixing bracket has a bend between two adjacent latches, the bend restricting the degree of freedom of the latches along the sliding axis.

[0015] Secondly, embodiments of this application provide a PCIe module, which includes the tool-free installation structure of the PCIe card described above and a PCIe card, wherein the PCIe card is inserted into the tool-free installation structure.

[0016] The beneficial effects of the technical solutions provided in this application include: The latch is slidably mounted on the fixed bracket via a sliding shaft, allowing it to slide perpendicular to the axis of the sliding shaft. When a PCIe card needs to be installed, the PCIe panel is placed in the PCIe panel placement area, and the latch is slid along the locking direction to lock the PCIe panel. To unlock, the latch is slid in the opposite direction of locking to disengage it from the PCIe panel. Throughout the entire process, the sliding shaft and the latch remain on the fixed bracket and will not fall off. Locking and unlocking can be achieved simply by sliding, solving the technical problems of easily lost screws and poor maintenance experience in related technologies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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 schematic diagram of the tool-free installation structure of a PCIe card in the locking position, as provided in an embodiment of this application. Figure 2 This is a cross-sectional view of the latch being locked according to an embodiment of this application; Figure 3 This is a schematic diagram of the tool-free installation structure of a PCIe card during unlocking, provided in an embodiment of this application. Figure 4 This is a cross-sectional view of the latch being unlocked according to an embodiment of this application; Figure 5 An exploded view of the tool-free installation structure provided in the embodiments of this application; Figure 6 A three-dimensional structural diagram of a tool-free installation structure for a PCIe card provided in an embodiment of this application; Figure 7 A schematic diagram of the tool-free installation structure provided in this application embodiment, configuring multiple PCIe cards; Figure 8 A schematic diagram of the bent structure of the fixed bracket provided in the embodiment of this application; Figure 9 A cross-sectional view of the latch provided in the embodiments of this application, made of plastic; Figure 10 A three-dimensional structural diagram of the latch made of plastic provided in the embodiments of this application; Figure 11 This is a schematic diagram of the structure of the PCIe module provided in an embodiment of this application.

[0019] In the picture: 1. Mounting bracket; 11. PCIe panel placement area; 12. Mounting bracket; 13. Mounting slot; 14. Limiting protrusion; 141. Locking stop surface; 142. Unlocking stop surface; 143. Support surface; 15. Bending; 2. Lock; 21. Sliding groove; 22. Spring point; 23. Removal restriction surface; 24. Base plate; 241. Window; 25. Side plate; 26. Cantilever; 3. Sliding shaft; 4. PCIe panel; 5. PCIe card. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0021] This application provides a tool-free installation structure and PCIe module for PCIe cards, which can solve the technical problems of easy screw loss and poor maintenance experience in related technologies.

[0022] See Figure 1 As shown, this application embodiment provides a tool-free installation structure for a PCIe card, which may include: a fixed bracket 1 having a PCIe panel placement area 11; a latch 2 slidably mounted on the fixed bracket 1 via a sliding shaft 3 and located on one side of the PCIe panel placement area 11, the sliding direction of the latch 2 being perpendicular to the axis of the sliding shaft 3; when the PCIe panel 4 is placed in the PCIe panel placement area 11 and the latch 2 slides toward the PCIe panel placement area 11, the latch 2 locks the PCIe panel 4; when the latch 2 slides away from the PCIe panel placement area 11, the PCIe panel 4 unlocks.

[0023] See Figure 1As shown, in this embodiment, the PCIe card 5 is generally fixed to the side with a PCIe panel 4. A PCIe panel placement area 11 is provided on the top of the fixing bracket 1 for placing the PCIe panel 4. The latch 2 is slidably disposed on one side of the PCIe panel placement area 11. This embodiment is described by taking the latch 2 sliding in the left-right direction as an example. The sliding shaft 3 extends in the front-back direction. The sliding shaft 3 can restrict the latch 2 to the fixing bracket 1 to prevent it from falling off. When the latch 2 is pushed to the left, the latch 2 can move to the locking position and thus lock the PCIe panel 4 in the PCIe panel placement area 11 (see Figure 2 As shown), when latch 2 is pushed to the right, latch 2 can move to the unlocked position (see Figure 1). Figure 3 and Figure 4 As shown), this unlocks PCIe panel 4.

[0024] In this embodiment, the latch 2 is slidably mounted on the fixed bracket 1 via the sliding shaft 3, allowing the latch 2 to slide in a direction perpendicular to the axis of the sliding shaft 3. When a PCIe card 5 needs to be installed, the PCIe panel 4 is placed in the PCIe panel placement area 11, and the latch 2 is slid along the locking direction to lock the PCIe panel 4. When unlocking is required, the latch 2 is slid along the opposite direction of locking to disengage it from the PCIe panel 4. Throughout the entire process, the sliding shaft 3 and the latch 2 remain on the fixed bracket 1 and will not fall off. Locking and unlocking can be achieved simply by sliding, solving the technical problems of easy screw loss and poor maintenance experience in related technologies.

[0025] See Figure 5 and Figure 6 As shown, after the sliding shaft 3 passes through the fixed bracket 1 and the latch 2, the latch 2, the sliding shaft 3 and the fixed bracket 1 are assembled together by riveting.

[0026] Further, in one embodiment, the fixed bracket 1 is provided with a mounting bracket 12, and both ends of the sliding shaft 3 pass through the mounting bracket 12, forming a mounting groove 13 between the mounting brackets 12 at both ends of the sliding shaft 3. The latch 2 is slidably mounted in the mounting groove 13, and the mounting bracket 12 restricts the degree of freedom of the latch 2 along the axial direction of the sliding shaft 3. In this embodiment, two mounting brackets 12 can be provided for each latch 2, one mounting bracket 12 located in front of the latch 2 and the other located behind the latch 2. The front and rear sides of the latch 2 can be basically in contact with the two mounting brackets 12. The two mounting brackets 12 can form a guide rail for the latch 2, restricting the degree of freedom of the latch 2 in the front-back direction, so that the latch 2 moves in the left-right direction when moving, and does not shift in the front-back direction.

[0027] Based on the above technical solution, in one embodiment, the latch 2 is provided with a sliding groove 21, and the sliding shaft 3 passes through the sliding groove 21. The length of the sliding groove 21 along the sliding direction of the latch 2 is greater than the outer diameter of the sliding shaft 3, and the sliding shaft 3 restricts the degree of freedom of the latch 2 along the insertion and removal direction of the PCIe card 5 through the sliding groove 21. See also Figure 5 As shown, a sliding groove 21 is provided on the front side of the latch 2 and another sliding groove 21 is provided on the rear side. Both ends of the sliding shaft 3 are inserted into the corresponding sliding groove 21. The sliding shaft 3 cannot move in the left and right direction relative to the fixed bracket 1. The length of the sliding groove 21 in the left and right direction is greater than the outer diameter of the sliding shaft 3, so that the latch 2 can move in the left and right direction relative to the sliding shaft 3. The length of the sliding groove 21 limits the distance that the latch 2 can move in the left and right direction. At the same time, the sliding shaft 3 passing through the sliding groove 21 can limit the degree of freedom of the latch 2 in the height direction (that is, the insertion and removal direction of the PCIe card 5), so that the latch 2 basically only slides in the left and right direction.

[0028] Furthermore, in one embodiment, see... Figure 2 As shown, the latch 2 has a spring point 22, and the fixing bracket 1 has a limiting protrusion 14. One side of the limiting protrusion 14 has a locking stop surface 141. When the latch 2 slides towards the PCIe panel placement area 11 to the locked position, the spring point 22 passes over the limiting protrusion 14 and stops at the locking stop surface 141. In this embodiment, the left side of the limiting protrusion 14 is the locked position, and the left side of the limiting protrusion 14 has a locking stop surface 141. When the latch 2 is in the locked position, the spring point 22 is located on the left side of the limiting protrusion 14 and stops at the locking stop surface 141. The locking stop surface 141 can prevent the spring point 22 from moving to the right, thereby preventing the latch 2 from moving in the unlocking direction.

[0029] Preferred, see Figure 4 As shown, an unlocking stop surface 142 is also provided on the other side of the limiting protrusion 14. When the latch 2 slides away from the PCIe panel placement area 11 to the unlock position, the spring point 22 passes over the limiting protrusion 14 and stops at the unlocking stop surface 142. In this embodiment, the right side of the limiting protrusion 14 is the unlock position, and the right side of the limiting protrusion 14 has an unlocking stop surface 142. When the latch 2 is in the unlock position, the spring point 22 is located on the right side of the limiting protrusion 14 and stops at the unlocking stop surface 142. The unlocking stop surface 142 can prevent the spring point 22 from moving to the left, thereby preventing the latch 2 from moving in the locking direction. With this configuration, when the PCIe card 5 is in maintenance mode, the latch 2 slides to the farthest point to the right. By stopping the latch 2 at the unlocking stop surface 142, it can be prevented that the latch 2 moves to the left during the maintenance of the PCIe card 5, affecting the insertion and removal of the PCIe card 5.

[0030] Furthermore, in some embodiments, the top surface of the limiting protrusion 14 has a supporting surface 143, the bottom surface of the latch 2 is attached to the supporting surface 143, and the bottom surface of the latch 2 has a disassembly limiting surface 23. When the PCIe panel 4 is placed in the PCIe panel placement area 11 and the latch 2 slides to the locking position, the disassembly limiting surface 23 moves to the PCIe panel placement area 11 and blocks one side of the PCIe panel 4.

[0031] See Figure 5 and Figure 6 As shown, in this embodiment, the top surface of the limiting protrusion 14 is flat and extends a certain length in the front and back directions and a certain width in the left and right directions. The entire top surface is a support surface 143, so that even if the bottom surface of the latch 2 is provided with spring points 22, the latch 2 can still slide on the support surface 143. Furthermore, by setting the support surface 143, the latch 2 can be supported at a certain height. After placing the PCIe panel 4, the bottom surface of the latch 2 can directly press against the PCIe panel 4, eliminating the need for a specially designed locking structure on the latch 2, thus reducing the complexity of the latch 2 and the difficulty of locking. In this embodiment, when the PCIe panel 4 is placed in the PCIe panel placement area 11, the support surface 143 is basically flush with the surface of the PCIe panel 4.

[0032] In other embodiments, the limiting protrusion 14 may also be non-planar.

[0033] See Figure 1 and Figure 2 As shown, when the PCIe card 5 is inserted into the Riser card, the latch 2 is pushed all the way in the opposite direction of unlocking. At this time, the spring point 22 of the latch 2 locks the upper limit protrusion 14 of the fixing bracket 1, thereby fixing the latch 2. At this time, the latch 2 is directly above the panel of the PCIe card 5, which restricts the freedom of the PCIe card 5 in the direction of disassembly and removal, thereby fixing the PCIe card 5.

[0034] See Figure 3 and Figure 4 As shown, when unlocking, push the latch 2 in the unlocking direction. The spring point 22 of the latch 2 is squeezed by the limiting protrusion 14 and deforms in the direction of the arrow. When the latch 2 moves to the farthest end, the spring point 22 resets and locks the other side of the limiting protrusion 14, thereby fixing the latch 2 in the unlocked state and preventing the latch 2 from shaking and affecting the removal and installation of the PCIe card 5.

[0035] Preferred, see Figure 5 and Figure 6As shown, the latch 2 includes a base plate 24 and side plates 25 surrounding the base plate 24. The base plate 24 has a window 241. The spring point 22 is connected to the base plate 24 via a cantilever 26 and suspended in the window 241. The cantilever 26 extends along the axial direction of the sliding shaft 3. The side plates 25 located at both ends of the sliding shaft 3 have sliding grooves 21. The sliding shaft 3 passes through the sliding grooves 21 and is located in the space enclosed by the side plates 25. In this embodiment, the latch 2 includes a base plate 24 and four side plates 25. The four side plates 25 are connected to the four sides of the base plate 24. The side plates 25 located on the front and rear sides have sliding grooves 21. In this embodiment, the latch 2 is designed as a frame structure, which not only reduces weight but also accommodates the sliding shaft 3, thereby reducing the volume of the entire tool-free installation structure. Meanwhile, connecting the spring point 22 to the base plate 24 via the cantilever 26 can increase the elasticity of the spring point 22. The extension direction of the cantilever 26 is perpendicular to the sliding direction of the latch 2. In this embodiment, the extension direction of the cantilever 26 is set perpendicular to the sliding direction of the latch 2, so that even with a small size, the latch 2 can have enough space to design the size of the cantilever 26 to be longer, ensuring that the cantilever 26 has sufficient elasticity.

[0036] In related technologies, some manufacturers in the industry currently provide tool-free installation fixing structures. However, when multiple PCIe cards are configured and fixed simultaneously on the same Riser module, they affect each other during maintenance and cannot be decoupled. The maintenance and upgrade experience is slightly worse, and PCIe fixing components are not interchangeable for different slot scenarios, resulting in high costs for large-scale deployment.

[0037] In one embodiment, see Figure 7 As shown, the mounting bracket 1 has multiple PCIe panel placement areas 11, and the multiple PCIe panel placement areas 11 are arranged along the axial direction of the sliding shaft 3. Each PCIe panel placement area 11 of the mounting bracket 1 is slidably fitted with an independent latch 2, and multiple latches 2 are mounted on the same sliding shaft 3. In this embodiment, two latches 2 can share one sliding shaft 3, or more latches 2 can share one sliding shaft 3, or each latch 2 can have its own independent sliding shaft 3. This embodiment allows for independent latches 2 in each PCIe panel placement area 11. When multiple PCIe cards 5 are installed on the same mounting bracket 1, maintenance of each PCIe card 5 can be performed without interference, and latches 2 in different slots can be interchanged, reducing costs.

[0038] like Figure 7As shown in this embodiment, when a single PCIe card 5 is maintained in a multi-slot Riser module deployment, the corresponding latch 2 is pushed in the unlocking direction. When the latch 2 moves to the farthest end, the PCIe card 5 is disassembled or replaced. At this time, the PCIe cards 5 in the adjacent slots are still reliably fixed and will not affect each other.

[0039] Based on the above technical solutions, see [link to relevant documentation]. Figure 8 As shown, the fixing bracket 1 has a bend 15 between two adjacent latches 2, and the bend 15 restricts the degree of freedom of the latches 2 along the axial direction of the sliding shaft 3. In this embodiment, the fixing bracket 1 forms a small bend 15 between two adjacent latches 2. The front and rear sides of the bend 15 can cooperate with other mounting brackets 12 to form guide rails for the latches 2, restricting the front and rear directions of the two latches 2. Furthermore, a clearance groove for avoiding the sliding shaft 3 can be provided on the bend 15.

[0040] It should be understood that the latch 2 in the above embodiments can be made of sheet metal or plastic. For mass production scenarios, the latch 2 can be made of plastic to reduce costs and improve the user experience (see...). Figure 9 and Figure 10 (As shown).

[0041] The tool-free installation structure provided in this application can meet the tool-free requirements of engineering and customer maintenance of PCIe card 5, and at the same time solve the problems of non-universality and non-decoupling of current PCIe tool-free structures. It meets the requirement of strong versatility in the structural design of the production line. Moreover, the structure is simple and low in cost, and is especially suitable for the current demand for small-batch and diverse shipments of self-developed server equipment. When deploying multi-slot Riser modules, PCIe card 5 can be unlocked separately without affecting other slots, reducing the difficulty of maintenance.

[0042] See Figure 11 As shown, this application embodiment also provides a PCIe module, which includes the tool-free installation structure of the PCIe card described above and a PCIe card 5, wherein the PCIe card 5 is inserted into the tool-free installation structure.

[0043] The PCIe module in this embodiment can adopt the tool-free installation structure provided in any of the above embodiments and achieve the corresponding functions, which will not be described in detail here.

[0044] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship 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. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A tool-free installation structure for a PCIe card, characterized in that, It includes: A mounting bracket (1) having a PCIe panel placement area (11); The latch (2) is slidably mounted on the fixed bracket (1) via the sliding shaft (3) and is located on one side of the PCIe panel placement area (11). The sliding direction of the latch (2) is perpendicular to the axis of the sliding shaft (3). When the PCIe panel (4) is placed in the PCIe panel placement area (11) and the latch (2) slides toward the PCIe panel placement area (11), the latch (2) locks the PCIe panel (4). The PCIe panel (4) is unlocked when the latch (2) slides away from the PCIe panel placement area (11).

2. The tool-free installation structure for a PCIe card as described in claim 1, characterized in that, The fixed bracket (1) is provided with a mounting bracket (12), and the two ends of the sliding shaft (3) pass through the mounting bracket (12), and a mounting groove (13) is formed between the mounting brackets (12) at both ends of the sliding shaft (3). The latch (2) is slidably mounted in the mounting groove (13), and the mounting bracket (12) restricts the degree of freedom of the latch (2) along the axial direction of the sliding shaft (3).

3. The tool-free installation structure for a PCIe card as described in claim 1 or 2, characterized in that, The latch (2) is provided with a sliding groove (21), and the sliding shaft (3) passes through the sliding groove (21). The length of the sliding groove (21) along the sliding direction of the latch (2) is greater than the outer diameter of the sliding shaft (3), and the sliding shaft (3) restricts the degree of freedom of the latch (2) along the PCIe card insertion and removal direction through the sliding groove (21).

4. The tool-free installation structure for a PCIe card as described in claim 1, characterized in that, The latch (2) is provided with a spring point (22), the fixed bracket (1) is provided with a limiting protrusion (14), and one side of the limiting protrusion (14) has a locking stop surface (141). When the latch (2) slides toward the PCIe panel placement area (11) to the locking position, the spring point (22) passes over the limiting protrusion (14) and stops at the locking stop surface (141).

5. The tool-free installation structure for a PCIe card as described in claim 4, characterized in that, The other side of the limiting protrusion (14) also has an unlocking stop surface (142). When the latch (2) slides away from the PCIe panel placement area (11) to the unlock position, the spring point (22) passes over the limiting protrusion (14) and stops at the unlocking stop surface (142).

6. The tool-free installation structure for a PCIe card as described in claim 4, characterized in that, The top surface of the limiting protrusion (14) has a support surface (143), the bottom surface of the latch (2) is attached to the support surface (143), and the bottom surface of the latch (2) has a disassembly limiting surface (23). When the PCIe panel (4) is placed in the PCIe panel placement area (11) and the latch (2) slides to the locking position, the disassembly limiting surface (23) moves to the PCIe panel placement area (11) and stops on one side of the PCIe panel (4).

7. The tool-free installation structure for a PCIe card as described in claim 4, characterized in that, The latch (2) includes a base plate (24) and side plates (25) surrounding the base plate (24). The base plate (24) has a window (241). The spring point (22) is connected to the base plate (24) by a cantilever (26) and suspended in the window (241). The cantilever (26) extends along the axial direction of the sliding shaft (3). The side plates (25) located at both ends of the sliding shaft (3) are provided with sliding grooves (21), the sliding shaft (3) passes through the sliding grooves (21), and the sliding shaft (3) is located in the space enclosed by the side plates (25) around it.

8. The tool-free installation structure for a PCIe card as described in claim 1, characterized in that, The fixed bracket (1) has a plurality of PCIe panel placement areas (11), and the plurality of PCIe panel placement areas (11) are arranged along the axial direction of the sliding shaft (3); Each fixed bracket (1) is slidably mounted with an independent latch (2) for each PCIe panel placement area (11), and multiple latches (2) are mounted on the same sliding axis (3).

9. The tool-free installation structure for a PCIe card as described in claim 8, characterized in that, The fixed bracket (1) has a bend (15) between two adjacent latches (2), the bend (15) restricting the degree of freedom of the latches (2) along the axial direction of the sliding shaft (3).

10. A PCIe module, characterized in that, It includes the tool-free installation structure of the PCIe card as described in claim 1 and the PCIe card (5), wherein the PCIe card (5) is inserted into the tool-free installation structure.

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