A heat dissipation system structure for a 2U chassis

Abstract

This invention discloses a heat dissipation system structure for a 2U chassis, relating to the field of server chassis structures. It includes a main heat dissipation frame structure with sliding rails mounted on both sides. The main heat dissipation frame structure is slidably mounted inside the chassis body via these rails. Several cooling fan units are mounted and connected to one end of the main heat dissipation frame structure inside the chassis body. The main heat dissipation frame structure is also used to connect internal circuitry and has a main connector. The sliding rails on both sides of the main heat dissipation frame structure are connected to the inner wall of the chassis body via a connecting mechanism for limited movement. This heat dissipation system structure significantly improves the chassis's heat dissipation efficiency and maintainability; simultaneously, it effectively adapts to vibrations generated during use, protecting the modular heat dissipation system structure.

Description

Technical Field

[0001] This invention relates to the field of server chassis structure, specifically to a heat dissipation system structure for a 2U chassis. Background Technology

[0002] Existing 2U servers, due to their height limitation (approximately 8.9 cm), have extremely compact internal space, posing a significant challenge to heat dissipation design. Heat tends to accumulate in the rear I / O area and PCIe expansion card area, forming "heat islands" that are difficult to effectively expel using only traditional CPU fans and front-to-back airflow. Furthermore, this area is typically filled with various expansion cards and cables; adding heat dissipation components can easily cause space conflicts and make maintenance difficult (e.g., replacing a fan requires disassembling multiple components). While there have been attempts to install fans at the rear of the chassis, these generally suffer from complex installation, inconvenient maintenance, poor compatibility with existing hardware, and the need for additional cabling. Therefore, there is an urgent need for a solution that can efficiently, conveniently, and compatiblely enhance rear heat dissipation in 2U servers. Summary of the Invention

[0003] The objective of this invention is achieved through the following technical solution: A heat dissipation system structure for a 2U chassis includes a heat dissipation main frame structure, with sliding guide rails installed on both sides of the heat dissipation main frame structure, and the heat dissipation main frame structure is slidably installed inside the chassis body via the sliding guide rails. The heat dissipation main frame structure is used to house several cooling fan units installed and connected at one end inside the chassis main body. The heat dissipation main frame structure is used to install and connect the internal circuit, and a main connector is installed and connected on the heat dissipation main frame structure. The sliding guide rails on both sides of the heat dissipation main frame structure are connected to the inner wall of the chassis body through a connecting mechanism for movable limiting connection. The connecting mechanism includes a movable connecting block; One end of the movable connecting block is used to connect with the sliding guide rail, and the other end of the movable connecting block is provided with a connector structure. The connector structure near the movable connecting block has a connecting cavity, and a limiting connecting structure is installed in the connecting cavity. The movable block is used to make a limiting connection with the limiting connecting structure. The connector structure is provided with a flexible connecting shell structure at the end away from the movable connecting block. The flexible connecting shell structure is hollow, and a flexible movable connecting structure is installed in the hollow flexible connecting shell structure. The end of the connector structure away from the movable connecting block is used to flexibly connect with the flexible movable connecting structure installed in the hollow flexible connecting shell structure. The structure is used to connect and fix to the internal side wall of the main body of the chassis via a shell bracket.

[0004] Preferably, the limiting connection structure includes a limiting block; The bottom end of the limiting block is used to connect and fix to the side wall of the connection receiving cavity opened in the connector structure; Movable blocks are respectively provided on both sides of the top surface of the limiting block, and sliding blocks are respectively connected to the bottom of the movable blocks. A sliding groove is provided on the top surface of the limiting block, and the sliding blocks are adapted to slide and limit the sliding groove.

[0005] Preferably, the movable block has connecting tenons connected to one end face of the side wall of the connecting cavity near the connecting head structure; The connecting head structure has connecting blind holes on the side walls of the connecting receiving cavity, and movable limiting holes are provided on both sides of the inner wall of the connecting blind holes. Connecting tenons for connecting with connecting tenons are elastically limited and movable through the movable limiting holes. A connecting spring is fitted on one side of the connecting tenon placed in the movable limiting hole. One end of the connecting spring is used to connect with the connecting tenon, and the other end of the connecting spring is used to connect with the inner wall of the movable limiting hole.

[0006] Preferably, the movable blocks are respectively arranged horizontally parallel to the movable connecting blocks; The top surfaces of the movable blocks are respectively connected to limit movable guide shafts; The movable connecting block is provided with a limit guide groove at one end near the limit movable guide shaft, and the limit movable guide shaft and the limit guide groove are configured to be movable limit adapted to each other; By driving the movable connecting block to move along the connecting cavity opened in the connecting head structure, the limiting movable guide shaft moves along the limiting guide groove, thereby driving the movable block to slide and limit along the side wall of the connecting cavity, so that the connecting tenon is placed in the connecting blind hole and connected to the connecting tenon of the connecting blind hole.

[0007] Preferably, a movable limiting connector is connected to one end of the movable connecting block near the connecting head structure's connecting cavity, and the movable limiting connector is used for movable limiting connection with the movable connecting rod; The movable connecting rod is movably disposed in the connection receiving cavity opened in the connector structure; The end of the movable connecting rod away from the movable connecting block is connected to a movable push plate; The movable push plate is movably disposed in the connection receiving cavity opened in the connector structure, and is adapted to the movable limit of the connection receiving cavity opened in the connector structure. The movable push plate is surrounded by movable connecting parts for connecting and accommodating the cavity.

[0008] Preferably, all the movable connectors include a movable connecting rod; The movable connecting rod is hinged to the movable push plate at one end via a hinge seat, and the other end of the movable connecting rod is hinged to a connecting sliding block via a hinge seat. The connecting sliding block is used to limit and slide in connection with the bottom end face of the connecting cavity. The bottom surface of the connecting cavity is provided with connecting limiting grooves corresponding to the connecting sliding block. The side of the connecting sliding block closest to the connecting limiting groove is used to slide in the connecting limiting groove, and the connecting sliding block is used to limit the connecting sliding block.

[0009] Preferably, the flexible movable connection structure includes a flexible ball seat structure movably disposed in the flexible connection housing; The outer wall of the flexible ball seat structure is provided with a transverse movable track groove, and the outer wall of the flexible ball seat structure is also provided with a longitudinal movable track groove that intersects perpendicularly with the transverse movable track groove. The transverse movable track groove is fitted with a transverse movable track block, and the longitudinal movable track groove is fitted with a longitudinal movable track block.

[0010] Preferably, the end of the transverse movable track block away from the flexible ball seat structure is provided with an arc-shaped transverse limiting track. The transverse limiting track is used to movably limit the transverse movable track block in the transverse movable track groove opened on the outer wall of the flexible ball seat structure. The two ends of the transverse limiting track are rotatably connected to the shell support through a rotating shaft. The transverse limiting track is provided with a transverse flexible limiting groove. The end of the transverse movable track block away from the flexible ball seat structure is connected to a flexible movable connecting rod. The other end of the flexible movable connecting rod moves through the transverse flexible limiting groove opened in the transverse limiting track, passes through the flexible connecting shell, and its end is used to connect with the end of the connecting head structure away from the sliding guide rail. A flexible deformation spring is fitted at one end of the flexible movable connecting rod that passes through the flexible connecting shell. One end of the flexible deformation spring is used to connect with the outer wall of the flexible connecting shell, and the other end of the flexible deformation spring is used to connect with the connector structure.

[0011] Preferably, the longitudinal movable track block is provided with an arc-shaped longitudinal limiting track at one end away from the flexible ball seat structure. The longitudinal limiting track is used to movably limit the longitudinal movable track block in the longitudinal movable track groove opened on the outer wall of the flexible ball seat structure. The two ends of the longitudinal limiting track are rotatably connected to the shell support through a rotating shaft. The longitudinal limiting track is provided with a longitudinal flexible limiting groove. The end of the longitudinal movable track block away from the flexible ball seat structure is connected to a flexible limiting rod, and the other end of the flexible limiting rod moves through the longitudinal flexible limiting groove opened in the longitudinal limiting track and passes through the flexible connecting shell.

[0012] The beneficial effects of this invention are as follows: The purpose of this invention is to provide a heat dissipation system structure for a 2U chassis. This heat dissipation system structure adopts a modular design for flexible and detachable installation in a 2U chassis. Through this heat dissipation system structure: 1. It can be easily integrated into a 2U chassis without affecting the compatibility of existing hardware, significantly improving the chassis's heat dissipation efficiency and providing excellent maintainability; 2. It is designed for flexible installation in a 2U chassis, effectively adapting to vibrations generated during chassis use and protecting the heat dissipation system structure and the electronic circuit boards on it. Attached Figure Description

[0013] Figure 1 This is an exploded structural diagram of the main body of a 2U chassis heat dissipation system according to the present invention. Figure 2 This is a schematic diagram illustrating the effect of the main heat dissipation frame structure of a 2U chassis heat dissipation system according to the present invention; Figure 3 This is a schematic diagram illustrating the connection effect between the heat dissipation main frame structure and the cooling fan unit of a 2U chassis heat dissipation system according to the present invention. Figure 4 This is a schematic diagram illustrating the connection effect between the heat dissipation main frame structure and the cooling fan unit of a 2U chassis heat dissipation system according to the present invention. Figure 5 This is a schematic diagram illustrating the heat dissipation main frame structure and electrical interface effect of a 2U chassis heat dissipation system according to the present invention; Figure 6 This is a schematic diagram of the connection structure between the sliding guide rail and the connecting mechanism of a 2U chassis heat dissipation system according to the present invention; Figure 7 This is an exploded view of the connection structure between the sliding guide rail and the connecting mechanism of a 2U chassis heat dissipation system according to the present invention; Figure 8 This is a schematic diagram of the connection mechanism of a 2U chassis heat dissipation system structure according to the present invention; Figure 9 This is an exploded view of the connection mechanism of a 2U chassis heat dissipation system structure according to the present invention; Figure 10 This is an exploded view of the connection structure between the movable connecting block and the connector structure of a 2U chassis heat dissipation system according to the present invention; Figure 11 This is an exploded view of the connecting structure of a flexible connecting shell structure for a 2U chassis heat dissipation system according to the present invention; In the diagram, 1-heat dissipation main frame structure, 2-sliding guide rail, 31-movable connecting block, 32-connector structure, 33-flexible connecting shell structure, 34-movable connecting rod, 311-movable limiting connector, 321-limiting block, 331-flexible ball seat structure, 332-lateral movable track block, 333-longitudinal movable track block, 341-movable push plate, 3211-movable block, 3212-connecting tenon, 3213-connecting tenon, 3214-connecting spring, 3215-limiting movable guide shaft, 3321-lateral limiting track, 3322-flexible movable connecting rod, 3323-flexible deformation spring, 3331-longitudinal limiting track, 3332-flexible limiting rod. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] like Figures 1 to 11 As shown, a heat dissipation system structure for a 2U chassis is disclosed. This heat dissipation system structure adopts a modular design for flexible and detachable installation in a 2U chassis. This structure allows for convenient integration into a 2U chassis without affecting existing hardware compatibility, significantly improving the chassis's heat dissipation efficiency and providing excellent maintainability. Furthermore, it effectively adapts to vibrations generated during chassis use, protecting the heat dissipation system structure and its electronic circuit boards.

[0016] The (modular) heat dissipation system structure includes a heat dissipation main frame structure 1, with sliding guide rails 2 installed on both sides of the heat dissipation main frame structure 1. The heat dissipation main frame structure 1 is slidably installed inside the chassis body (at the designed installation position) via the sliding guide rails 2. Several cooling fan units are installed and connected to one end of the heat dissipation main frame structure 1 inside the chassis body. The heat dissipation main frame structure 1 is used to install and connect internal circuits, and a main connector is installed and connected on the heat dissipation main frame structure. The sliding guide rails 2 on both sides of the heat dissipation main frame structure 1 are used to move and limit the connection with the inner wall of the chassis body via a connecting mechanism.

[0017] like Figures 1 to 5 As shown, the main structure of the heat dissipation system is a heat dissipation module frame, which is usually made of metal (such as aluminum alloy) sheet by stamping and bending or plastic injection molding to ensure structural strength and lightweight.

[0018] Main frame: It has a flat rectangular box structure, and its total external height is strictly designed to be 1U (44.45 mm). Its length and width match the standard slots reserved for heat dissipation at the rear of the 2U chassis. Guide rails: A guide rail structure is installed on each of the two side panels of the frame. It has guide grooves or protrusions and cooperates with the guide rails preset inside the 2U chassis, allowing the entire module to be inserted or removed horizontally like a server hard drive. Each guide rail is installed with the flexible movable limit of the 2U chassis through an added "connection mechanism" to limit and facilitate the installation and removal of the heat dissipation system structure.

[0019] The cooling system is an additional modular auxiliary cooling system, comprising: a cooling module frame; the cooling module frame is configured to slide horizontally along guide rails and be inserted entirely into or removed entirely from a pre-set mounting position in a 2U server chassis. The total height of the cooling module frame is a standard 1U height; the bottom of the cooling module frame has a cutout area or channel to provide passage space for PCIe expansion cards and / or cables installed in the chassis when the frame is inserted, thereby avoiding physical interference.

[0020] Furthermore, the base plate of the heat dissipation module frame features a large-area mesh cutout design, or the bottom baffle is completely eliminated, forming an open channel. The height of this area accounts for approximately 1 / 2 to 2 / 3 of the total height of the frame.

[0021] Functions and relationships: 1U height: Ensures the module can be installed within the remaining space of a 2U chassis without exceeding the total height of the chassis.

[0022] Bottom cutout: Provides crucial passage space for the gold fingers of expansion cards installed in full-height or half-height PCIe slots, as well as for the data and power cables connecting these expansion cards, thus enabling hardware compatibility.

[0023] Guide rail mechanism: Enables rapid overall installation and maintenance of modules without the need for tools to fix them in place.

[0024] A main electrical connector is integrated into the heatsink frame. This main electrical connector is configured to mate with a corresponding secondary electrical connector pre-installed within the chassis when the heatsink frame is inserted into the chassis. The main electrical connector receives a single set of fan control signals and power from the server motherboard and provides unified power and control for multiple cooling fans mounted on the frame. This gives the system architecture the preferred implementation of "integrated electrical interface, multiplexing host signals." This enhances the "plug-and-play" nature and intelligence of the solution.

[0025] Integrated electrical interface module: This is a small circuit board or wire harness assembly terminal integrated at the rear of the heat dissipation module frame, with a main connector (general interface) on it.

[0026] Structural description and relationships: Main connector: Typically a multi-pin board-to-board connector or a robust cable plug, whose pin definitions include at least: DC power positive (e.g., +12V), power ground (GND), pulse width modulation signal input (PWM_IN), and speed feedback signal output (TACH_OUT).

[0027] Internal circuitry: The PWM_IN signal from the main connector is distributed in parallel to all fan sockets on the frame via traces on the circuit board or internal wiring harnesses. The speed feedback signals from each fan may then be aggregated and processed.

[0028] effect: Reuse of existing interface: This main connector interfaces with a pre-designed expansion fan header within the 2U chassis. This interface can be directly connected in parallel or derived from the existing system fan header on the motherboard, thus eliminating the need for an additional independent fan controller or occupying valuable motherboard fan headers.

[0029] Centralized Management: The fan controller on the system motherboard can control all the fans in the entire auxiliary cooling module through a single interface, achieving synchronized speed adjustment and simplifying control logic and wiring.

[0030] The heatsink frame has at least one fan mounting position. Each fan mounting position detachably accommodates an independent pluggable fan unit. The fan unit is configured to be individually installed into or removed from the mounting position in a direction perpendicular to the horizontal insertion direction of the frame without removing the heatsink frame. The fan unit is connected to the fan mounting position via one or more combinations of resilient clips, guide slides, and foolproof interfaces. This gives the system architecture a specific and crucial maintainability design feature: "fans can be quickly replaced independently of the frame."

[0031] Independent pluggable fan units refer to multiple standard-sized axial cooling fans. Each fan unit includes fan blades, a motor, a housing, and a dedicated quick connector (male).

[0032] Structural description and relationships: The top panel of the heat dissipation module frame has round or square mounting holes that match the size of the fan.

[0033] Each mounting hole is surrounded by a fan socket (female connector), which is connected to an integrated electrical interface module via internal wiring.

[0034] The fan unit aligns with the mounting holes via elastic clips or guide slots on its housing and is inserted vertically (perpendicular to the direction the module is inserted into the chassis). Its quick-connect male connector mates with the fan socket female connector on the frame. It is secured by the locking action of the clips and can be disassembled by pulling it back.

[0035] effect: It provides core forced ventilation cooling function.

[0036] The design of individual fans being pluggable and detachable means that if a fan fails, there is no need to disassemble the entire cooling system or other nearby fans, greatly improving the convenience of local maintenance.

[0037] The added modular heat dissipation system structure has the following features: 1. Structural Coordination: The 1U high modular body ensures installation feasibility; its hollow design at the bottom actively avoids hardware and solves compatibility issues; the guide rail and buckle design together realize convenient maintenance at both the "whole" and "individual" levels.

[0038] 2. Electrical Coordination: The integrated electrical interface consolidates the dispersed fan power supply and control requirements into a single point. By reusing existing system fan signals, it achieves "plug-and-play" intelligent control, avoiding complex independent wiring. This perfectly complements the modular physical structure, making the entire system a truly easy-to-install and maintain "plug-in".

[0039] 3. Functionality achieved: The above structures work together to successfully deploy a highly efficient auxiliary cooling system at the rear of the extremely crowded 2U server, which does not interfere with existing hardware, is easy to install and maintain, has centralized heat dissipation effect, and unified control logic.

[0040] 4. Modular structure with "overall plug-in and layered maintenance" The system features a heatsink frame that can be horizontally inserted into and removed from the rear slot of a 2U chassis, along with mounting positions on the frame that allow for independent vertical insertion and removal of individual fan units. This innovative physical structure, distinct from traditional screw-mounted fans, solves the maintenance challenges of confined spaces.

[0041] 5. Forced compatibility design with "1U height and hollowed-out lower part". The overall height of the protective heatsink frame is limited to a standard 1U height (44.45 mm), and its bottom features a specific structure with cutouts or channels to allow PCIe expansion cards and cables to pass through. This is a key design feature that ensures unconditional compatibility with existing hardware in all standard 2U chassis.

[0042] 6. Integrated electrical interface for "signal multiplexing and centralized control" The protection features a single main connector located at the rear of the heatsink frame. This connector is configured to receive a shared power and fan control signal (such as a PWM signal) from the host unit and distribute this control signal to all fans within the module via internal circuitry. This represents an electrical connectivity innovation that enables "plug-and-play" functionality and simplifies wiring.

[0043] Furthermore, such as Figures 6 to 11 As shown, the connection mechanism used for "flexible limiting" protection and for limiting the connection between the heat dissipation main frame structure 1 of the heat dissipation system structure and the interior of the chassis body includes a movable connecting block 31; one end of the movable connecting block 31 is used to connect with the sliding guide rail 2 (which can be connected by connecting bolts), and the other end of the movable connecting block 31 is provided with a connecting head structure 32. The end of the connecting head structure 32 near the movable connecting block 31 has a connecting receiving cavity, and a limiting connection structure is installed in the connecting receiving cavity. The movable connecting block 31 is used to limit the connection with the limiting connection structure (by limiting the connection between the movable connecting block 31 and the limiting connection structure, the sliding guide rail 2 is flexibly limited to the designed position inside the chassis body). A flexible connecting shell structure 33 is provided at the end of the connector structure 32 away from the movable connecting block 31. The flexible connecting shell 33 is hollow, and a flexible movable connecting structure is installed in the hollow of the flexible connecting shell structure 33. The end of the connector structure 32 away from the movable connecting block 31 is used to flexibly connect with the flexible movable connecting structure installed in the hollow of the flexible connecting shell structure 33. The structure 33 is used to connect and fix to the internal side wall of the chassis body through the shell bracket. The sliding guide rail 2 of the heat dissipation main frame structure 1 of the heat dissipation system structure is "flexibly limited" in the designed position with the chassis body through the connection mechanism designed to protect the heat dissipation system structure and circuit board modules, etc.

[0044] Furthermore, the limiting connection structure includes a limiting block 321; the bottom end of the limiting block 321 is used to connect and fix to the side wall of the connection receiving cavity opened in the connector structure 32; movable blocks 3211 are respectively provided on both sides of the top surface of the limiting block 321, and sliding blocks are respectively connected to the bottom ends of the movable blocks 3211; a sliding groove is opened on the top surface of the limiting block 321, and the sliding blocks and the sliding groove are adapted to slide and limit each other. The movable block 3211 is connected to a connecting tenon 3212 on one end face of the side wall of the connecting cavity near the connector structure 32. The side wall of the connecting cavity of the connector structure 32 is provided with a connecting blind hole. The inner wall of the connecting blind hole is provided with a movable limiting hole on both sides. The movable limiting hole is provided with a connecting tenon 3313 for limiting connection with the connecting tenon 3212. A connecting spring 3214 is sleeved on one side of the connecting tenon 3213 placed in the movable limiting hole. One end of the connecting spring 3214 is used to connect with the connecting tenon 3213, and the other end of the connecting spring 3214 is used to connect with the inner wall of the movable limiting hole.

[0045] Furthermore, the movable blocks 3211 are respectively arranged horizontally parallel to the movable connecting blocks 31; the top surfaces of the movable blocks 3211 are respectively connected to the limit movable guide shafts 3215; the movable connecting blocks 31 are respectively provided with limit guide grooves at the ends near the limit movable guide shafts 3215, and the limit movable guide shafts 3215 and the limit guide grooves are dynamically limited and adapted. When the sliding guide rail 2 of the heat dissipation main frame structure 1 is pushed into the interior of the chassis body according to the installation design position, the end of the sliding guide rail 2, which is located inside the chassis body and is used to connect with the end of the sliding guide rail 2, enters the connection receiving cavity opened in the connector structure 32; the limiting movable guide shaft 3215 adapts to the limiting guide groove opened in the movable connecting block 31, and as the sliding guide rail 2 continues to "inward", it drives the movable connecting block 31 to move along the connection receiving cavity opened in the connector structure 32, so that the limiting movable guide shaft 3215 moves along the limiting guide groove respectively, thereby driving the movable block 3211 (under the limiting sliding guide action of the sliding block and the groove) to slide and limit along the side wall of the connection receiving cavity, so that the connecting tenon 3212 is moved into the connection blind hole and limitedly connected with the connecting tenon 313 of the connection blind hole.

[0046] Furthermore, a movable limiting connector 311 is connected to one end of the movable connecting block 31 near the connecting cavity of the connector structure 32. The movable limiting connector 311 is used for a movable limiting connection with the movable connecting rod 34 (i.e., the movable limiting connector 311 and the movable connecting rod 34 are connected in a "quick-fit" limiting connection). The movable connecting rod 34 is movably disposed in the connecting cavity of the connector structure 32; a movable push plate 341 is connected to one end of the movable connecting rod 34 away from the movable connecting block 31; the movable push plate 341 is movably disposed in the connecting cavity of the connector structure 32 and is adapted to the movable limiting of the connecting cavity of the connector structure 32; movable connecting parts for limiting connection with the connecting cavity are connected to the four sides of the end of the movable push plate 341 away from the movable connecting rod 34. As the movable connecting block 31 continues to move inward, the movable push plate 341 drives the movable connecting piece to be "connected" to the connection receiving cavity; ultimately, the sliding guide rail 2 is "limitedly connected" to the connecting mechanism, and the heat dissipation system structure is limited to the internal design position of the chassis body.

[0047] Furthermore, each movable connector includes a movable connecting rod 342; one end of the movable connecting rod 342 near the movable push plate 341 is hinged to the movable push plate 341 via a hinge seat, and the other end of the movable connecting rod 342 is hinged to a connecting sliding block 343 via a hinge seat. The connecting sliding block 343 is used for a limiting sliding connection with the bottom end face of the connecting cavity; the bottom end face of the connecting cavity is provided with connecting limiting grooves corresponding to the connecting sliding blocks, and the side of the connecting sliding block 343 near the connecting limiting groove is used to slide in the connecting limiting groove, and the connecting sliding block 343 is used to limit the connecting sliding block. The end of the connecting sliding block 343 is placed in the connecting limiting groove, limiting the movable connecting block 31 in the connecting cavity opened in the connector structure 32.

[0048] Furthermore, the flexible movable connection structure includes a flexible ball seat structure 331 movably disposed within the flexible connection housing 33; the outer wall of the flexible ball seat structure 331 has a transverse movable track groove, and the outer wall of the flexible ball seat structure 331 also has a longitudinal movable track groove perpendicularly intersecting the transverse movable track groove; a transverse movable track block 332 is movablely fitted in the transverse movable track groove, and a longitudinal movable track block 333 is movablely fitted in the longitudinal movable track groove. An arc-shaped transverse limiting track 3321 is provided at the end of the transverse movable track block away from the flexible ball seat structure. The transverse limiting track 3321 is used to movably limit the transverse movable track block 332 within the transverse movable track groove on the outer wall of the flexible ball seat structure 331. Both ends of the transverse limiting track 3321 are rotatably connected to the housing support via rotating shafts. The transverse limiting track 3321 has a transverse flexible limiting groove; a flexible movable connecting rod 3322 is connected to the end of the transverse movable track block 332 away from the flexible ball seat structure 331. The other end of the flexible movable connecting rod 3322 passes through the transverse flexible limiting groove opened in the transverse limiting track 3321, and passes through the flexible connecting housing 33, with its end used to connect to the end of the connector structure 32 away from the sliding guide rail 2; a flexible deformation spring 3323 is sleeved on the end of the flexible movable connecting rod 3322 that passes through the flexible connecting housing 33; one end of the flexible deformation spring 3323 is used to connect to the outer wall of the flexible connecting housing 33, and the other end of the flexible deformation spring 3323 is used to connect to the connector structure 32.

[0049] Furthermore, an arc-shaped longitudinal limiting track 3331 is provided at one end of the longitudinal movable track block 333 away from the flexible ball seat structure 331. The longitudinal limiting track 3331 is used to movably limit the longitudinal movable track block 333 in the longitudinal movable track groove opened on the outer wall of the flexible ball seat structure 331. Both ends of the longitudinal limiting track 3331 are connected to the housing support through a rotating shaft for rotation. The longitudinal limiting track 3331 has a longitudinal flexible limiting groove. A flexible limiting rod 3332 is connected to one end of the longitudinal movable track block 333 away from the flexible ball seat structure 331. The other end of the flexible limiting rod 3332 moves through the longitudinal flexible limiting groove opened on the longitudinal limiting track 3331 and passes through the flexible connecting housing 33.

[0050] Because the connecting mechanism for connecting the heat dissipation main frame structure 1 of the heat dissipation system structure to the interior of the chassis body is "flexibly movable", the heat dissipation system structure can be flexibly and detachably connected to the interior of the chassis body, thereby effectively adapting to vibrations generated during use of the chassis and protecting the heat dissipation system structure and the electronic circuit boards on the heat dissipation system structure.

Claims

1. A heat dissipation system structure for a 2U chassis, comprising a main heat dissipation frame structure, characterized in that, The heat dissipation main frame structure is equipped with sliding guide rails on both sides, and the heat dissipation main frame structure is slidably installed inside the chassis body through the sliding guide rails. The heat dissipation main frame structure is used to house several cooling fan units installed and connected at one end inside the chassis main body. The heat dissipation main frame structure is used to install and connect the internal circuit, and a main connector is installed and connected on the heat dissipation main frame structure. The sliding guide rails on both sides of the heat dissipation main frame structure are connected to the inner wall of the chassis body through a connecting mechanism for movable limiting connection. The connecting mechanism includes a movable connecting block; One end of the movable connecting block is used to connect with the sliding guide rail, and the other end of the movable connecting block is provided with a connector structure. The connector structure near the movable connecting block has a connecting cavity, and a limiting connecting structure is installed in the connecting cavity. The movable block is used to make a limiting connection with the limiting connecting structure. The connector structure is provided with a flexible connecting shell structure at the end away from the movable connecting block. The flexible connecting shell structure is hollow, and a flexible movable connecting structure is installed in the hollow flexible connecting shell structure. The end of the connector structure away from the movable connecting block is used to flexibly connect with the flexible movable connecting structure installed in the hollow flexible connecting shell structure. The structure is used to connect and fix to the internal side wall of the main body of the chassis via a shell bracket.

2. The structure of a 2U chassis heat dissipation system according to claim 1, characterized in that, The limiting connection structure includes a limiting block; The bottom end of the limiting block is used to connect and fix to the side wall of the connection receiving cavity opened in the connector structure; Movable blocks are respectively provided on both sides of the top surface of the limiting block, and sliding blocks are respectively connected to the bottom of the movable blocks. A sliding groove is provided on the top surface of the limiting block, and the sliding blocks are adapted to slide and limit the sliding groove.

3. The structure of a 2U chassis heat dissipation system according to claim 2, characterized in that, The movable block is connected to a connecting tenon on one end face of the side wall of the connecting cavity near the connector structure. The connecting head structure has connecting blind holes on the side walls of the connecting receiving cavity, and movable limiting holes are provided on both sides of the inner wall of the connecting blind holes. Connecting tenons for connecting with connecting tenons are elastically limited and movable through the movable limiting holes. A connecting spring is fitted on one side of the connecting tenon placed in the movable limiting hole. One end of the connecting spring is used to connect with the connecting tenon, and the other end of the connecting spring is used to connect with the inner wall of the movable limiting hole.

4. The structure of a 2U chassis heat dissipation system according to claim 3, characterized in that, The movable blocks are respectively used to be set horizontally parallel to the movable connecting blocks; The top surfaces of the movable blocks are respectively connected to limit movable guide shafts; The movable connecting block is provided with a limit guide groove at one end near the limit movable guide shaft, and the limit movable guide shaft and the limit guide groove are configured to be movable limit adapted to each other; By driving the movable connecting block to move along the connecting cavity opened in the connecting head structure, the limiting movable guide shaft moves along the limiting guide groove, thereby driving the movable block to slide and limit along the side wall of the connecting cavity, so that the connecting tenon is placed in the connecting blind hole and connected to the connecting tenon of the connecting blind hole.

5. The structure of a 2U chassis heat dissipation system according to claim 4, characterized in that, The movable connecting block is connected to a movable limiting connecting head at one end of the connecting cavity near the connecting head structure. The movable limiting connecting head is used to make a movable limiting connection with the movable connecting rod. The movable connecting rod is movably disposed in the connection receiving cavity opened in the connector structure; The end of the movable connecting rod away from the movable connecting block is connected to a movable push plate; The movable push plate is movably disposed in the connection receiving cavity opened in the connector structure, and is adapted to the movable limit of the connection receiving cavity opened in the connector structure. The movable push plate is surrounded by movable connecting parts for connecting and accommodating the cavity.

6. The structure of a 2U chassis heat dissipation system according to claim 5, characterized in that, All movable connectors include movable connecting rods; The movable connecting rod is hinged to the movable push plate at one end via a hinge seat, and the other end of the movable connecting rod is hinged to a connecting sliding block via a hinge seat. The connecting sliding block is used to limit and slide in connection with the bottom end face of the connecting cavity. The bottom surface of the connecting cavity is provided with connecting limiting grooves corresponding to the connecting sliding block. The side of the connecting sliding block closest to the connecting limiting groove is used to slide in the connecting limiting groove, and the connecting sliding block is used to limit the connecting sliding block.

7. The structure of a 2U chassis heat dissipation system according to claim 1, characterized in that, The flexible movable connection structure includes a flexible ball seat structure that is movably disposed in the flexible connection shell; The outer wall of the flexible ball seat structure is provided with a transverse movable track groove, and the outer wall of the flexible ball seat structure is also provided with a longitudinal movable track groove that intersects perpendicularly with the transverse movable track groove. The transverse movable track groove is fitted with a transverse movable track block, and the longitudinal movable track groove is fitted with a longitudinal movable track block.

8. The structure of a 2U chassis heat dissipation system according to claim 7, characterized in that, The transverse movable track block is provided with an arc-shaped transverse limiting track at one end away from the flexible ball seat structure. The transverse limiting track is used to move and limit the transverse movable track block in the transverse movable track groove opened on the outer wall of the flexible ball seat structure. The two ends of the transverse limiting track are connected to the shell support through a rotating shaft for rotation. The transverse limiting track is provided with a transverse flexible limiting groove. The end of the transverse movable track block away from the flexible ball seat structure is connected to a flexible movable connecting rod. The other end of the flexible movable connecting rod moves through the transverse flexible limiting groove opened in the transverse limiting track, passes through the flexible connecting shell, and its end is used to connect with the end of the connecting head structure away from the sliding guide rail. A flexible deformation spring is fitted at one end of the flexible movable connecting rod that passes through the flexible connecting shell. One end of the flexible deformation spring is used to connect with the outer wall of the flexible connecting shell, and the other end of the flexible deformation spring is used to connect with the connector structure.

9. A heat dissipation system structure for a 2U chassis according to claim 8, characterized in that, The longitudinal movable track block is provided with an arc-shaped longitudinal limiting track at one end away from the flexible ball seat structure. The longitudinal limiting track is used to limit the longitudinal movable track block in the longitudinal movable track groove opened on the outer wall of the flexible ball seat structure. The two ends of the longitudinal limiting track are connected to the shell support through rotating shafts for rotation. The longitudinal limiting track is provided with a longitudinal flexible limiting groove. The end of the longitudinal movable track block away from the flexible ball seat structure is connected to a flexible limiting rod, and the other end of the flexible limiting rod moves through the longitudinal flexible limiting groove opened in the longitudinal limiting track and passes through the flexible connecting shell.

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