A server CPU cooling device

Abstract

The application discloses a server CPU heat dissipation device, belonging to the technical field of server CPU heat dissipation, which comprises a heat-conducting base, heat dissipation fins arranged on the heat-conducting base and a Stirling machine arranged at the central position of the heat dissipation fins; the Stirling machine is attached and installed with the heat-conducting base, the heat-conducting base forms the hot end of the Stirling machine, and the heat dissipation fins form the cold end of the Stirling machine; a generator is drivingly connected to the rotating shaft of the Stirling machine, and the generator is connected with a storage battery through a transformer. The heat-conducting base absorbs the heat of the CPU, has a higher temperature, and becomes the hot end of the Stirling machine; the hot air exchanges heat with the surrounding air at the heat dissipation fins, has a reduced temperature, and forms the cold end of the Stirling machine. The stable and continuous operation of the Stirling machine is realized, the generator is driven to rotate to generate electricity, and the electric energy is stored in the storage battery. The application realizes the recycling of the heat dissipated by the CPU, reduces the influence on the environment around the server, reduces the waste of heat, improves the energy conversion utilization rate, saves the external power supply, and saves the operation cost.

Description

Technical Field

[0001] This invention belongs to the field of server CPU heat dissipation technology, specifically a server CPU heat dissipation device. Background Technology

[0002] A server's CPU, also known as a Central Processing Unit, is the core of a server's processing and control. It's the server's electronic circuitry that executes server program instructions by performing basic arithmetic, logic, control, and input / output operations. Simply put, the CPU is like the heart of a server; its capabilities directly affect the overall server's operating speed, and the vast majority of programs must pass through its processing. The CPU's main functions are: processing instructions, executing operations, controlling time, and processing data.

[0003] As server CPU performance continues to improve, its operating power also increases, leading to increased CPU heat dissipation. To ensure high-performance operation of server CPUs, CPU coolers are typically used to cool them. The heatsink's heatsink base is in contact with the front of the CPU, and the heat generated by the CPU is conducted to the heatsink's fins through the heatsink base, achieving air cooling. Alternatively, the heat generated by the CPU can be cooled by the vapor-liquid conversion of the heat transfer fluid in the heat pipes.

[0004] Servers typically require high-powered fans to generate airflow, quickly dissipating heat from the CPU to the outside and increasing cooling efficiency. However, the heat from these high-powered fans can negatively impact the surrounding environment and lead to wasted energy. Furthermore, traditional server air vents are fixed and cannot be flexibly adjusted to meet different cooling needs, resulting in significant limitations. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a server CPU cooling device that converts the heat dissipated by the CPU into electrical energy, thereby recovering and utilizing the heat dissipated by the CPU, reducing the impact on the surrounding environment of the server, minimizing heat waste, improving energy conversion efficiency, saving external power supply, and reducing operating costs.

[0006] This invention is achieved through the following technical solution:

[0007] A server CPU cooling device includes a heat-conducting base that can be fitted to the CPU, and heat dissipation fins on the heat-conducting base. It also includes a Stirling machine located at the center of the heat dissipation fins. The Stirling machine is fitted to the heat-conducting base, with the heat-conducting base forming the hot end of the Stirling machine and the heat dissipation fins forming the cold end of the Stirling machine. A generator is driven and connected to the shaft of the Stirling machine, and the generator is connected to a battery through a transformer.

[0008] A further improvement of the present invention is that a flywheel is connected to the side of the Stirling engine away from the heat-conducting base, and the generator is installed by engaging with the heat dissipation fins through a connecting bracket and is coaxially connected to the flywheel for transmission.

[0009] A further improvement of the present invention is that the middle part of the connecting frame is connected and installed with the generator, and its two sides extend outward and bend to form connecting arms. A positioning ring is provided between the two connecting arms, which can engage and position with the upper edge of the heat dissipation fins. The ends of the two connecting arms are provided with inwardly protruding buckles, and the heat dissipation fins are provided with slots that engage and position with the buckles.

[0010] A further improvement of the present invention is that the flywheel has several heat dissipation blades on its circumferential side that can dissipate heat from the heat dissipation fins.

[0011] A further improvement of the present invention is that a guide rod is connected to the generator housing and installed on the top cover of the chassis. The top cover of the chassis is provided with an opening and closing baffle. A movable wing plate is slidably installed on the guide rod along its axial direction. The upper side of the movable wing plate is connected to the opening and closing baffle through a connecting rod. The Stirling engine drives the flywheel to rotate, and the airflow generated by the cooling blades can blow the movable wing plate upward, causing the movable wing plate to open through the connecting rod.

[0012] A further improvement of the present invention is that a screw hole is provided at the upper end of the guide rod, and a screw that is screwed into the screw hole is provided on the top cover of the chassis.

[0013] A further improvement of the present invention is that the two connecting arms of the connecting frame extend in the same direction as the centerline of the moving wing plate.

[0014] A further improvement of the present invention is that a fixed bracket is connected to the heat-conducting base, which can be positioned and installed with the server motherboard.

[0015] A further improvement of the present invention is that the fixed bracket includes four continuously bent legs, and the legs are provided with mounting holes.

[0016] A further improvement of the present invention is that the heat dissipation fins have a cylindrical radial structure.

[0017] As can be seen from the above technical solutions, the beneficial effects of the present invention are:

[0018] The heat-conducting base absorbs the heat generated by the CPU, reaching a high temperature and becoming the hot end of the Stirling engine. The gas pressure above the base increases due to heat, and the hot gas exchanges heat with the surrounding air at the heatsink fins, lowering its temperature and pressure, thus forming the stable cold end of the Stirling engine. Pre-starting the Stirling engine ensures stable and continuous operation. The Stirling engine's output drives a generator to produce electricity. This electricity is transformed by a transformer and stored in a battery, which powers the server's cooling fans. This process converts the heat dissipated by the CPU into electrical energy, achieving heat recovery and utilization, reducing the impact on the server's surrounding environment, minimizing heat waste, improving energy conversion efficiency, saving external power supply, and reducing operating costs. The overall structure is simple, easy to use, and highly practical. Attached Figure Description

[0019] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view structural diagram of a specific embodiment of the present invention.

[0021] Figure 2 This is a second-view structural diagram of a specific embodiment of the present invention.

[0022] Figure 3 This is a side view of a specific embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram illustrating the connection between the generator and the battery in a specific embodiment of the present invention.

[0024] In the attached diagram: 1. Heat-conducting base, 2. Fixed bracket, 3. Heat dissipation fins, 31. Slot, 4. Stirling engine, 5. Heat dissipation blades, 6. Generator, 61. Guide rod, 7. Moving wing plate, 8. Connecting rod, 9. Connecting frame, 91. Buckle, 10. Top cover of the chassis, 11. Opening and closing baffle. Detailed Implementation

[0025] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0026] like Figure 1-4 As shown, this invention discloses a server CPU heat dissipation device, including a heat-conducting base 1 that can be fitted and installed against the front (upper side) of the CPU. Heat dissipation fins 3 are connected to the heat-conducting base 1, and a Stirling engine 4 is set at the center of the heat dissipation fins 3. The Stirling engine 4 is fitted and installed against the upper side of the heat-conducting base 1, with the heat-conducting base 1 forming the hot end of the Stirling engine 4 and the heat dissipation fins 3 forming the cold end of the Stirling engine 4. A generator 6 is driven and connected to the shaft of the Stirling engine 4, and the generator 6 is connected to a battery through a transformer. The battery is installed on the motherboard inside the server.

[0027] The heat-conducting base 1 absorbs the heat generated by the CPU, reaching a high temperature and becoming the hot end of the Stirling engine 4. The gas pressure on top of the heat-conducting base 1 increases due to heat, and the hot gas exchanges heat with the surrounding air at the heat sink fins 3, lowering the temperature and gas pressure, thus forming a stable cold end for the Stirling engine 4. By pre-starting the Stirling engine 4, stable and continuous operation can be achieved. The output of the Stirling engine 4 drives the generator 6 to generate electricity. The electrical energy is transformed by a transformer and stored in a battery. The stored energy can then power the server's cooling fan. This process converts the heat dissipated by the CPU into electrical energy, achieving heat recovery and utilization, reducing the impact on the server's surrounding environment, minimizing heat waste, improving energy conversion efficiency, saving external power supply, and reducing operating costs. The overall structure is simple, easy to use, and highly practical.

[0028] like Figure 1-3 As shown, a flywheel 41 is connected to the upper side of the Stirling engine 4. The generator 6 is mounted on the heat sink 3 via a connecting bracket 9 and is coaxially connected to the flywheel 41. When the CPU generates heat during operation, the flywheel 41 is started by a simple motor, which drives the crankshaft and connecting rod. The piston of the Stirling engine 4 begins to reciprocate under the pressure difference between the hot and cold ends. The flywheel 41 is used for pre-starting the Stirling engine 4. The generator 6 is mounted on the heat sink 3 via the connecting bracket 9, ensuring the reliability and stability of the transmission connection between the generator 6 and the flywheel 41.

[0029] Among them, such as Figure 1-3 As shown, the connecting frame 9 is connected and installed to the generator 6 in the middle. Its two sides extend outward and bend downward to form connecting arms. A positioning ring is provided between the two connecting arms, which can engage and position with the upper edge of the heat dissipation fin 3. The ends of the two connecting arms are provided with inwardly protruding buckles 91. The heat dissipation fin 3 has a slot 31 that engages and positions with the buckles 91. The lower inner edge of the positioning ring is provided with a fitting groove. The fitting groove engages and is engaged with the upper outer edge of the heat dissipation fin 3. The buckles 91 engage with the slot 31 on the side of the heat dissipation fin 3. This can realize the reliability and stability of the positioning and installation of the connecting frame 9 and the heat dissipation fin 3, and can realize the convenient assembly and disassembly of the connecting frame 9 and the heat dissipation fin 3.

[0030] The flywheel 41 has a ring array of cooling blades 5 on its circumferential side, which can dissipate heat from the heat sink 3. When the Stirling machine 4 is running, the flywheel 41 of the Stirling machine 4 drives the cooling blades 5 to rotate, creating an air pressure difference between the upper and lower parts, which drives the air around the heat sink 3 to flow rapidly, thereby achieving rapid and efficient heat dissipation of the heat sink 3 and ensuring the stability and reliability of the CPU operation.

[0031] like Figure 1-3 As shown, a guide rod 61 is fixedly connected to the center of the upper housing of the generator 6 and is connected to the top cover 10 of the chassis. The guide rod 61 is set vertically and is coaxial with the rotating shaft of the generator 6. A window is opened on the top cover 10 of the chassis, and an opening and closing baffle 11 that can be flipped open and closed is provided in the window. A moving wing plate 7 is slidably fitted on the guide rod 61 along its axial direction. The upper side of the moving wing plate 7 is connected to the opening and closing baffle 11 through a connecting rod 8. When the Stirling machine 4 is running, the flywheel 41 of the Stirling machine 4 drives the heat dissipation blades 5 to rotate. The airflow generated by the rotation of the heat dissipation blades 5 is upward. Based on Bernoulli's principle, the moving wing plate 7 is propelled upward by the upward airflow generated by the heat dissipation blades 5, and slides upward along the guide rod 61. The connecting rod 8 on the upper side of the moving wing plate 7 lifts the opening and closing baffle 11, and the hot air is discharged upward from the vent formed by the opening and closing baffle 11 and the window. Moreover, as the CPU's operating power increases, the heat generated by the CPU also increases, the Stirling machine 4 runs faster, and the upward airflow generated by the flywheel 41 driving the heat dissipation blades 5 is also greater. Based on Bernoulli's principle, the moving wing plate 7 moves upward along the guide rod 61. The greater the distance, the greater the opening range of the connecting rod 8 to the opening and closing baffle 11, resulting in a larger air outlet on the top cover 10 of the chassis and enhanced heat dissipation efficiency. Similarly, as the CPU operating power decreases, the heat generated by the CPU decreases, the Stirling engine 4 operates more slowly, and the upward airflow generated by the heat dissipation blades 5 driven by the flywheel 41 decreases. Based on Bernoulli's principle, the moving wing plate 7 travels a smaller distance upward along the guide rod 61, thus reducing the opening range of the connecting rod 8 to the opening and closing baffle 11 and decreasing the air outlet on the top cover 10 of the chassis. This achieves flexible interlocking control between CPU operating power and the air outlet of the top cover 10 of the chassis, ensuring the reliability and flexibility of CPU heat dissipation. When the server is powered off, the moving wing plate 7 falls completely under its own weight, causing the opening and closing baffle 11 to close on the window on the top cover 10 of the chassis, achieving a dustproof effect for the server.

[0032] The connecting rod 8 abuts against the lower surface of the opening / closing baffle 11, and the upper end of the connecting rod 8 is spherical to ensure the reliability of the transmission of push and pull forces between the connecting rod 8 and the opening / closing baffle 11. Furthermore, the connecting rod 8 is fixedly connected to the upper surface of the moving wing plate 7 to ensure the accuracy and reliability of the lifting and lowering movement of the moving wing plate 7 and the connecting rod 8. A limiting block is installed on the upper section of the guide rod 61 to limit the upward movement of the moving wing plate 7 to its extreme position, preventing the moving wing plate 7 from moving too far upward and causing the connecting rod 8 to detach from the opening / closing baffle 11.

[0033] The moving wing plate 7 has a rectangular plate structure. The guide rod 61 slides with the center of the moving wing plate 7 and is set at a certain angle to ensure the good realization of Bernoulli's principle. There are two connecting rods 8, which are symmetrically arranged with respect to the guide rod 61 to effectively ensure the stability of the moving wing plate 7 in moving up and down and avoid left and right tilting or jamming caused by uneven force on the left and right.

[0034] The guide rod 61 has a screw hole at its upper end, and the top cover 10 of the chassis has a screw that is screwed into the screw hole for installation. By passing the screw through the top cover 10 of the chassis and screwing it into the screw hole at the upper end of the guide rod 61, the guide rod 61 is securely positioned and installed on the top cover 10 of the chassis, and the installation is convenient for disassembly and maintenance.

[0035] Among them, such as Figure 1-3 As shown, the two connecting arms of the connecting frame 9 extend in the same direction as the centerline of the moving wing plate 7. That is, the two connecting arms of the connecting frame 9 extend in a direction perpendicular to the length of the moving wing plate 7, which effectively avoids the connecting frame 9 from blocking the upward airflow generated by the rotation of the heat dissipation blades 5, ensuring that the moving wing plate 7 obtains sufficient upward thrust, and ensuring the stability of the moving wing plate 7 as it is pushed upward by the airflow.

[0036] A mounting bracket 2 is connected to the thermal pad 1 for positioning and installation with the server motherboard. The mounting bracket 2 includes four continuously bent legs with mounting holes. The thermal pad 1 is positioned and installed with the server motherboard via the mounting bracket 2, ensuring a tight fit between the thermal pad 1 and the front of the CPU. A layer of thermal paste is applied between the front of the CPU and the lower surface of the thermal pad 1 to ensure efficient heat conduction from the CPU to the thermal pad 1.

[0037] like Figure 1-2 As shown, the heat dissipation fins 3 have a cylindrical radial structure. The cylindrical heat dissipation fins 3 can be adapted to the rotatable heat dissipation blades 5, so that the heat dissipation fins 3 can be accelerated and evenly cooled when the heat dissipation blades 5 rotate.

[0038] This server CPU cooling system uses a heat-conducting base 1 to absorb the heat generated by the CPU, resulting in a high temperature and becoming the hot end of the Stirling engine 4. The gas pressure above the heat-conducting base 1 increases due to heat, and the hot gas exchanges heat with the surrounding air at the cooling fins 3, lowering the temperature and gas pressure, thus forming a stable cold end for the Stirling engine 4. By pre-starting the Stirling engine 4, stable and continuous operation can be achieved. The output of the Stirling engine 4 drives the generator 6 to generate electricity. The electrical energy is transformed by a transformer and stored in a battery. The stored energy can then power the server's cooling fans. This system converts the heat dissipated by the CPU into electrical energy, achieving heat recovery and utilization, reducing the impact on the surrounding environment, minimizing heat waste, improving energy conversion efficiency, saving external power supply, and reducing operating costs. The overall structure is simple, easy to use, and highly practical.

[0039] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0040] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. 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 the invention. Therefore, the invention 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 disclosed herein.

Claims

1. A server CPU heat dissipation device, comprising a heat-conducting base (1) capable of being fitted and installed with the CPU, wherein the heat-conducting base (1) is provided with heat dissipation fins (3), characterized in that, It also includes a Stirling machine (4) located at the center of the heat dissipation fins (3); the Stirling machine (4) is fitted with the heat-conducting base (1), the heat-conducting base (1) forms the hot end of the Stirling machine (4), and the heat dissipation fins (3) form the cold end of the Stirling machine (4); a generator (6) is driven and connected to the rotating shaft of the Stirling machine (4), and the generator (6) is connected to a battery through a transformer; A guide rod (61) is connected to the casing of the generator (6) and installed on the top cover (10) of the chassis. An opening and closing baffle (11) is provided on the top cover (10). A moving wing plate (7) is slidably installed on the guide rod (61) along its axis. The upper side of the moving wing plate (7) is connected to the opening and closing baffle (11) through the connecting rod (8). The Stirling machine (4) drives the flywheel (41) to rotate. The airflow generated by the heat dissipation blades (5) can blow the moving wing plate (7) upward, so that the moving wing plate (7) drives the opening and closing baffle (11) to open through the connecting rod (8).

2. The server CPU heat dissipation device according to claim 1, characterized in that, A flywheel (41) is connected to the side of the Stirling engine (4) away from the heat-conducting base (1). The generator (6) is installed by engaging the heat dissipation fins (3) through the connecting bracket (9) and is coaxially connected to the flywheel (41).

3. The server CPU heat dissipation device according to claim 2, characterized in that, The middle part of the connecting frame (9) is connected to the generator (6), and its two sides extend outward and bend to form connecting arms. A positioning ring is provided between the two connecting arms, which can engage with the upper edge of the heat dissipation fin (3). The ends of the two connecting arms are provided with inward protruding buckles (91), and the heat dissipation fin (3) is provided with a slot (31) that engages with the buckle (91).

4. The server CPU heat dissipation device according to claim 3, characterized in that, The flywheel (41) has several heat dissipation blades (5) on its circumferential side that can dissipate heat from the heat dissipation fins (3).

5. The server CPU heat dissipation device according to claim 4, characterized in that, The upper end of the guide rod (61) is provided with a screw hole, and the top cover (10) of the chassis is provided with a screw that is screwed to the screw hole for installation.

6. The server CPU heat dissipation device according to claim 4, characterized in that, The two connecting arms of the connecting frame (9) extend in the same direction as the centerline of the moving wing plate (7).

7. The server CPU heat dissipation device according to claim 1, characterized in that, A fixed bracket (2) is connected to the heat-conducting base (1) and can be positioned and installed with the server motherboard.

8. The server CPU heat dissipation device according to claim 7, characterized in that, The fixed bracket (2) includes four continuously bent legs, and mounting holes are provided on the legs.

9. The server CPU heat dissipation device according to claim 1, characterized in that, The heat dissipation fins (3) have a cylindrical radial structure.

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