A recirculating cooling device for a computer data center

Abstract

This invention provides a circulating cooling device for computer data centers, belonging to the field of data center cooling technology. It includes a server rack, inlet pipes, return pipes, an external water tank, a fan assembly, a transmission assembly, a piston assembly, and cooling pipes. The external water tank is located outside the server rack, and the cooling pipes are installed inside the server rack. One end of the inlet pipe is connected to the external water tank, and the other end extends into the server rack and connects to the inlet end of the cooling pipe. One end of the return pipe is connected to the external water tank, and the other end extends into the server rack and connects to the outlet end of the cooling pipe. The fan assembly is installed on the side wall of the server rack. Compared with existing technologies, this invention can achieve both air cooling and water cooling for computer server racks, and water cooling does not consume additional electricity, thereby improving the energy efficiency of computer server rack cooling.

Description

Technical Field

[0001] This invention belongs to the field of data center cooling technology, specifically a circulating cooling device for computer data centers. Background Technology

[0002] Data centers are globally collaborative networks of specific devices used to transmit, accelerate, display, compute, and store data information on network infrastructure. Because data centers generate a lot of heat, cooling devices are needed to cool them down and ensure their stable operation.

[0003] Existing data center cooling devices are divided into air-cooled cooling devices and water-cooled cooling devices. Air-cooled cooling devices work by supplying air into the computer racks containing the data center, using the air to remove heat from the racks. Water-cooled cooling devices, on the other hand, use pumps or similar devices to pump cooling water through the racks to remove heat. Because data centers generate a lot of heat, air-cooled and water-cooled cooling devices often operate simultaneously, leading to increased energy consumption. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a circulating cooling device for computer data centers.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A circulating cooling device for computer data centers includes a server rack, inlet pipes, return pipes, an external water tank, a fan assembly, a transmission assembly, a piston assembly, and cooling pipes.

[0007] The external water tank is located on the outside of the cabinet, and the cooling pipes are installed inside the cabinet.

[0008] One end of the water inlet pipe is connected to the external water tank, and the other end extends into the cabinet and connects to the water inlet of the cooling pipe. One end of the water return pipe is connected to the external water tank, and the other end extends into the cabinet and connects to the water outlet of the cooling pipe.

[0009] The fan assembly is mounted on the side wall of the cabinet and is used to introduce outside air into the cabinet. The piston assembly is movably disposed inside the water inlet pipe. One end of the transmission assembly is connected to the fan assembly, and the other end is connected to the piston assembly.

[0010] When the fan assembly introduces outside air into the cabinet, the transmission assembly transmits the rotational power of the fan assembly to the piston assembly, causing the piston assembly to reciprocate along the inside of the water inlet pipe, so as to pump the cooling water inside the external water tank into the cooling pipe through the water inlet pipe, and then return it to the external water tank through the return pipe.

[0011] As a further improvement of the present invention: an air inlet is provided on one side wall of the cabinet, and an exhaust port opposite to the air inlet is provided on the other side wall of the cabinet.

[0012] The fan assembly includes fan blades, an inner casing, a rotating shaft, an annular outer shell, a support rod, and a drive component.

[0013] The annular outer casing is fixedly installed on the outer wall of the cabinet and communicates with the air inlet. The inner housing is fixedly installed inside the annular outer casing by the support rod. The rotating shaft passes through the inner housing and rotates with the inner housing. The rotating shaft is distributed along the axis of the annular outer casing.

[0014] The fan blades are provided in several groups, and several of the fan blades are fixedly installed at one end of the rotating shaft. The driving component is located inside the annular housing and is used to drive the rotating shaft to rotate.

[0015] As a further improvement of the present invention: the driving component includes a transmission bevel gear, a drive bevel gear, and a motor.

[0016] The transmission bevel gear is fixedly mounted on the shaft located inside the inner housing, the motor is fixedly mounted on the side wall of the inner housing, and the drive bevel gear is located at the output end of the motor and meshes with the transmission bevel gear.

[0017] As a further improvement of the present invention: the piston assembly includes a piston cylinder, a baffle, and a second elastic element.

[0018] The piston cylinder is movably disposed inside the water inlet pipe. The baffle is hinged to one end of the piston cylinder. One end of the second elastic member is connected to the inner wall of the piston cylinder, and the other end is connected to the baffle, for providing elasticity to the baffle.

[0019] As a further improvement of the present invention: a sliding groove is provided on the side wall of the water inlet pipe fitting, and an annular stop block is fixedly provided on the outside of the water inlet pipe fitting.

[0020] The piston assembly further includes an annular slider and a first elastic element. The annular slider is slidably sleeved on the outside of the water inlet pipe and fixedly connected to the connecting rod. One end of the first elastic element is connected to the annular stop block, and the other end is connected to the annular slider, for providing elastic tension to the annular slider.

[0021] The transmission assembly includes a turntable, an arc-shaped rack, a transmission rod, a linear rack, and a connecting rod.

[0022] The turntable is fixedly disposed at one end of the rotating shaft away from the fan blades. The arc-shaped racks are provided in several groups. The arc-shaped racks are fixedly disposed on the circumferential sidewall of the turntable and distributed in a ring at intervals. The transmission rod is disposed on the side of the turntable. The straight rack is fixedly disposed on the sidewall of the transmission rod and can mesh with the arc-shaped racks. One end of the connecting rod is fixedly connected to the transmission rod, and the other end extends from the slide groove into the interior of the water inlet pipe and is fixedly connected to the piston cylinder.

[0023] As a further improvement of the present invention: the length of the piston cylinder is greater than the length of the slide groove, and when the piston cylinder reciprocates inside the water inlet pipe, neither end of the piston cylinder will move to the inside of the slide groove.

[0024] As a further improvement of the present invention: the first elastic element and the second elastic element are springs or metal sheets.

[0025] As a further improvement of the present invention: the return water pipe is also provided with a flow limiting component. When the piston cylinder moves in another direction along the inside of the inlet pipe, the flow limiting component is used to limit the flow during cooling inside the return water pipe, so that the cooling water inside the cooling pipe remains still.

[0026] As a further improvement of the present invention: the current limiting component includes a current limiting plate and a current limiting shell, the upper end of the current limiting plate being fixedly connected to the transmission rod, and the lower end extending into the interior of the current limiting shell and movably engaging with the current limiting shell.

[0027] The return water pipe includes a first pipe body and a second pipe body. One end of the second pipe body extends into the cabinet and is connected to the outlet of the cooling pipe, and the other end extends into the outside of the cabinet and is fixedly connected to the flow-limiting shell. One end of the first pipe body is fixedly connected to the flow-limiting shell, and the other end is connected to the external water tank.

[0028] As a further improvement of the present invention: the cooling pipes are arranged in a coiled or bent manner inside the cabinet.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] In this embodiment of the invention, when cooling is required for a computer cabinet, a fan assembly can be used to introduce outside air into the cabinet, thereby achieving air-cooled heat dissipation. During this process, the rotational power of the fan assembly is transmitted to the piston assembly through a transmission assembly, causing the piston assembly to reciprocate along the inside of the water inlet pipe. This draws cooling water from the external water tank into the cooling pipe via the water inlet pipe, and then returns it to the external water tank via the return pipe. As the cooling water flows along the inside of the cooling pipe, since the cooling pipe is located inside the cabinet, the cooling water can exchange heat with the inside of the cabinet through the pipe wall, thereby carrying away the heat inside the cabinet and achieving water-cooled circulating heat dissipation. Compared with the prior art, this invention can achieve both air-cooled and water-cooled heat dissipation for the computer cabinet, and water-cooled cooling does not require additional power consumption, thus improving the energy-saving effect of the computer cabinet during heat dissipation. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure of a circulating cooling device for computer data centers. Figure 1 ;

[0033] Figure 2 A schematic diagram of the structure of a circulating cooling device for computer data centers. Figure 2 ;

[0034] Figure 3 for Figure 1 Enlarged view of region A in the middle;

[0035] Figure 4 for Figure 1 Enlarged view of region A in the middle;

[0036] Figure 5 for Figure 1 Enlarged view of region B in the middle;

[0037] Figure 6 for Figure 1 Enlarged diagram of region C in the middle;

[0038] Figure 7 for Figure 2 Enlarged schematic diagram of region D in the middle;

[0039] In the diagram: 10-cabinet, 20-inlet pipe fitting, 201-slide groove, 202-annular stop block, 30-return pipe fitting, 301-first pipe body, 302-second pipe body, 40-external water tank, 50-fan assembly, 501-fan blade, 502-inner housing, 503-transmission bevel gear, 504-drive bevel gear, 505-shaft, 506-annular shell, 507-support rod, 508-motor, 60-transmission assembly, 601-turntable, 602-arc rack, 603-transmission rod, 604-rack, 605-connecting rod, 70-piston assembly, 701-piston cylinder, 702-annular slider, 703-first elastic element, 704-baffle, 705-second elastic element, 80-flow limiting assembly, 801-flow limiting plate, 802-flow limiting shell. Detailed Implementation

[0040] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0041] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Please see Figure 1 as well as Figure 2This embodiment provides a circulating cooling device for a computer data center, including a cabinet 10, an inlet pipe 20, a return pipe 30, an external water tank 40, a fan assembly 50, a transmission assembly 60, a piston assembly 70, and cooling pipes (not shown in the figure). The external water tank 40 is located outside the cabinet 10, and the cooling pipes are installed inside the cabinet 10. One end of the inlet pipe 20 is connected to the external water tank 40, and the other end extends into the cabinet 10 and is connected to the inlet end of the cooling pipe. One end of the return pipe 30 is connected to the external water tank 40, and the other end extends into the cabinet 10 and is connected to the outlet end of the cooling pipe. The fan assembly 50 is installed... On the side wall of the cabinet 10, a piston assembly 70 is movably disposed inside the water inlet pipe 20 for introducing outside air into the cabinet 10. One end of the transmission assembly 60 is connected to the fan assembly 50, and the other end is connected to the piston assembly 70. When the fan assembly 50 introduces outside air into the cabinet 10, the transmission assembly 60 is used to transmit the rotational power of the fan assembly 50 to the piston assembly 70, so that the piston assembly 70 reciprocates along the inside of the water inlet pipe 20 to pump the cooling water inside the external water tank 40 into the cooling pipe through the water inlet pipe 20, and then returns it to the external water tank 40 through the return water pipe 30.

[0045] When cooling is required for the computer cabinet, the fan assembly 50 can be used to introduce outside air into the cabinet 10, thereby achieving air-cooled heat dissipation of the cabinet 10. During this process, the rotational power of the fan assembly 50 is transmitted to the piston assembly 70 through the transmission assembly 60, causing the piston assembly 70 to move back and forth along the inside of the water inlet pipe 20. This draws the cooling water from the external water tank 40 into the cooling pipe through the water inlet pipe 20, and then returns it to the external water tank 40 through the return pipe 30. When the cooling water flows along the inside of the cooling pipe, since the cooling pipe is located inside the cabinet 10, the cooling water can exchange heat with the inside of the cabinet 10 through the pipe wall, thereby carrying away the heat inside the cabinet 10 and achieving water-cooled circulating heat dissipation of the cabinet 10.

[0046] Please see Figure 3In one embodiment, an air inlet is provided on one side wall of the cabinet 10, and an exhaust port opposite to the air inlet is provided on the other side wall of the cabinet 10. The fan assembly 50 includes fan blades 501, an inner housing 502, a rotating shaft 505, an annular outer shell 506, a support rod 507, and a drive component. The annular outer shell 506 is fixedly installed on the outer wall of the cabinet 10 and communicates with the air inlet. The inner housing 502 is fixedly disposed inside the annular outer shell 506 by the support rod 507. The rotating shaft 505 passes through the inner housing 502 and rotates in cooperation with the inner housing 502. The rotating shaft 505 is distributed along the axis of the annular outer shell 506. Several sets of fan blades 501 are provided, and several sets of fan blades 501 are fixedly installed at one end of the rotating shaft 505. The drive component is disposed inside the annular outer shell 506 and is used to drive the rotating shaft 505 to rotate.

[0047] The drive component drives the rotating shaft 505 to rotate, which in turn drives several fan blades 501 to rotate. When the fan blades 501 rotate, they draw in outside air, which enters between the annular outer shell 506 and the inner casing 502. Then, the outside air enters the cabinet 10 through the air inlet and finally exits through the exhaust port. At this time, outside air flows through the cabinet 10 to carry away the heat inside the cabinet 10, thus achieving air-cooled heat dissipation of the cabinet 10.

[0048] Please see Figure 3 as well as Figure 7 In one embodiment, the driving component includes a transmission bevel gear 503, a driving bevel gear 504, and a motor 508. The transmission bevel gear 503 is fixedly mounted on the shaft of the rotating shaft 505 located inside the inner housing 502. The motor 508 is fixedly mounted on the side wall of the inner housing 502. The driving bevel gear 504 is disposed at the output end of the motor 508 and meshes with the transmission bevel gear 503.

[0049] The motor 508 drives the drive bevel gear 504 to rotate. When the drive bevel gear 504 rotates, it meshes with the transmission bevel gear 503, thereby driving the rotating shaft 505 to rotate. The rotating shaft 505 drives several fan blades 501 to rotate, thereby drawing in outside air so that outside air flows through the inside of the cabinet 10, realizing the air-cooled heat dissipation of the cabinet 10.

[0050] Please see Figure 5 as well as Figure 7In one embodiment, the piston assembly 70 includes a piston cylinder 701, a baffle 704, and a second elastic element 705. The piston cylinder 701 is movably disposed inside the water inlet pipe 20. The baffle 704 is hinged to one end of the piston cylinder 701. One end of the second elastic element 705 is connected to the inner wall of the piston cylinder 701, and the other end is connected to the baffle 704, for providing elastic tension to the baffle 704. A one-way valve (not shown in the figure) is provided inside the water inlet pipe 20 at a position between the piston cylinder 701 and the external water tank 40.

[0051] When the motor 508 drives the rotating shaft 505 to rotate, thereby driving several fan blades 501 to rotate and introduce outside air into the cabinet 10, the transmission assembly 60 transmits the rotational power of the rotating shaft 505 to the piston cylinder 701, causing the piston cylinder 701 to reciprocate along the inside of the water inlet pipe 20. When the piston cylinder 701 moves in one direction, the baffle 704 at one end, pulled by the second elastic element 705, abuts against the end of the piston cylinder 701 to seal the inner cavity of the piston cylinder 701. The one-way valve inside the water inlet pipe 20 opens, and the piston cylinder 701 draws cooling water from the external water tank 40 into the water inlet pipe 20. When the piston cylinder 701 moves in the other direction, the one-way valve inside the water inlet pipe 20 closes, and the baffle 704... The piston cylinder 701 rotates to open its inner cavity, allowing cooling water inside the inlet pipe 20 to pass through. Through the reciprocating movement of the piston cylinder 701 along the inlet pipe 20, in conjunction with the baffle 704 and the one-way valve inside the inlet pipe 20, cooling water from the external water tank 40 is continuously drawn into the inlet pipe 20. This ensures that the cooling water continuously passes through the inner cavity of the piston cylinder 701 as the inlet pipe 20 cools. After the cooling water passes through the inner cavity of the piston cylinder 701, as the piston cylinder 701 continues to move in one direction, it can push the cooling water through the inlet pipe 20 into the cooling pipes located inside the cabinet 10, thus providing water-cooled heat dissipation for the inside of the cabinet 10.

[0052] Please see Figure 3 , Figure 4 as well as Figure 5In one embodiment, the water inlet pipe fitting 20 has a sliding groove 201 on its side wall, and an annular stop block 202 is fixedly disposed on the outside of the water inlet pipe fitting 20. The piston assembly 70 also includes an annular slider 702 and a first elastic element 703. The annular slider 702 is slidably sleeved on the outside of the water inlet pipe fitting 20 and fixedly connected to the connecting rod 605. One end of the first elastic element 703 is connected to the annular stop block 202, and the other end is connected to the annular slider 702, for providing elastic tension to the annular slider 702. The transmission assembly 60 includes a turntable 601, an arc-shaped rack 602, a transmission rod 603, a linear rack 604, and... The connecting rod 605 is fixedly disposed at one end of the rotating shaft 505 away from the plurality of fan blades 501. The arc-shaped rack 602 is provided in several groups. The plurality of arc-shaped racks 602 are fixedly disposed on the circumferential side wall of the rotating shaft 601 and are distributed in a ring at intervals. The transmission rod 603 is disposed on the side of the rotating shaft 601. The straight rack 604 is fixedly disposed on the side wall of the transmission rod 603 and can mesh with the plurality of arc-shaped racks 602. One end of the connecting rod 605 is fixedly connected to the transmission rod 603, and the other end extends from the slide groove 201 into the interior of the water inlet pipe 20 and is fixedly connected to the piston cylinder 701.

[0053] When the motor 508 drives the rotating shaft 505 to rotate, thereby driving several fan blades 501 to rotate, the rotating shaft 505 can also drive the turntable 601 to rotate. When the turntable 601 rotates, it drives several arc-shaped racks 602 to rotate. When a certain set of arc-shaped racks 602 meshes with a straight rack 604, it can drive the transmission rod 603 to move. The transmission rod 603 drives the piston cylinder 701 to move in one direction along the inside of the water inlet pipe 20 through the connecting rod 605, thereby drawing the cooling water inside the external water tank 40 into the water inlet pipe 20 and driving the cooling water inside the water inlet pipe 20 into the cooling pipe. At this time, the connecting rod 605 slides along the inside of the slide groove 201, and the connecting rod 605 drives... The movable annular slider 702 slides along the outside of the water inlet pipe 20. The first elastic element 703 is stretched by force. When the arc-shaped rack 602 and the straight rack 604 disengage, the first elastic element 703 pulls the annular slider 702, causing the annular slider 702 to slide in the opposite direction along the outside of the water inlet pipe 20. The annular slider 702 drives the connecting rod 605 to slide in the opposite direction along the inside of the slide groove 201, thereby driving the piston cylinder 701 to move in the other direction along the inside of the water inlet pipe 20. At the same time, it drives the transmission rod 603 to move in the opposite direction, realizing the reset of the transmission rod 603. When the piston cylinder 701 moves in the other direction, it drives the cooling water inside the water inlet pipe 20 to pass through its inner cavity.

[0054] In one embodiment, the length of the piston cylinder 701 is greater than the length of the slide groove 201. When the piston cylinder 701 reciprocates inside the water inlet pipe 20, neither end of the piston cylinder 701 will move to the inside of the slide groove 201. In this way, the cooling water can be prevented from leaking from the slide groove 201, and the cooling water can be ensured to flow smoothly inside the water inlet pipe 20.

[0055] In one embodiment, the first elastic element 703 and the second elastic element 705 may be springs or metal sheets, and there is no limitation on this.

[0056] Please see Figure 1 In one embodiment, the return water pipe 30 is further provided with a flow limiting component 80. When the piston cylinder 701 moves in another direction along the inside of the inlet water pipe 20, the flow limiting component 80 is used to limit the flow during cooling inside the return water pipe 30, so that the cooling water inside the cooling pipe remains still, thereby extending the heat exchange time between the cooling water and the heat inside the cabinet 10, so that the cooling water can fully cool the inside of the cabinet 10 and improve the utilization efficiency of the cooling water.

[0057] Please see Figure 1 , Figure 2 as well as Figure 6 In one embodiment, the flow limiting component 80 includes a flow limiting plate 801 and a flow limiting shell 802. The upper end of the flow limiting plate 801 is fixedly connected to the transmission rod 603, and the lower end extends into the interior of the flow limiting shell 802 and is movably engaged with the flow limiting shell 802. The return water pipe 30 includes a first pipe body 301 and a second pipe body 302. One end of the second pipe body 302 extends into the interior of the cabinet 10 and is connected to the outlet end of the cooling pipe, and the other end extends into the exterior of the cabinet 10 and is fixedly connected to the flow limiting shell 802. One end of the first pipe body 301 is fixedly connected to the flow limiting shell 802, and the other end is connected to the external water tank 40.

[0058] When a set of arc-shaped racks 602 meshes with a straight rack 604, thereby driving the transmission rod 603 to move, the transmission rod 603 drives the piston cylinder 701 to move in one direction along the inside of the water inlet pipe 20. When the transmission rod 603 moves, it drives the flow limiting plate 801 to move outward of the flow limiting shell 802, so as to open the internal channel of the flow limiting shell 802. When the piston cylinder 701 moves, it pushes the cooling water inside the water inlet pipe 20 into the cooling pipe, so that the cooling water flows through the cooling pipe, the second pipe body 302, the flow limiting shell 802, and the first... The flow inside the tube 301 is as follows: when the arc-shaped rack 602 and the straight rack 604 disengage, causing the first elastic element 703 to drive the piston cylinder 701 and the transmission rod 603 to move in another direction, the transmission rod 603 drives the flow-limiting plate 801 to move into the flow-limiting shell 802, thereby closing the channel between the second tube 302 and the first tube 301. At this time, the cooling water in the cooling pipe remains still, so that the cooling water can cool the inside of the cabinet 10 for a longer period of time.

[0059] In one embodiment, the cooling pipes can be coiled or bent inside the cabinet 10, thereby increasing the flow range of cooling water inside the cabinet 10 for better cooling of the cabinet 10.

[0060] In this embodiment of the invention, when cooling is required for the computer cabinet, the fan assembly 50 can be used to introduce outside air into the cabinet 10, thereby achieving air-cooled heat dissipation of the cabinet 10. During this process, the rotational power of the fan assembly 50 is transmitted to the piston assembly 70 through the transmission assembly 60, causing the piston assembly 70 to reciprocate along the inside of the water inlet pipe 20. This draws the cooling water from the external water tank 40 into the cooling pipe through the water inlet pipe 20, and then returns it to the external water tank 40 through the return pipe 30. When the cooling water flows along the inside of the cooling pipe, since the cooling pipe is located inside the cabinet 10, the cooling water can exchange heat with the inside of the cabinet 10 through the pipe wall, thereby carrying away the heat inside the cabinet 10 and achieving water-cooled circulating heat dissipation of the cabinet 10. Compared with the prior art, this invention can achieve both air-cooled and water-cooled heat dissipation of the computer cabinet, and water-cooled cooling does not require additional power consumption, thereby improving the energy-saving effect of the computer cabinet during heat dissipation.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity, and those skilled in the art should consider the specification as a whole.

Claims

1. A circulating cooling device for computer data centers, characterized in that, Includes a cabinet (10), inlet water pipes (20), return water pipes (30), an external water tank (40), a fan assembly (50), a transmission assembly (60), a piston assembly (70), and cooling pipes. The external water tank (40) is located outside the cabinet (10), and the cooling pipes are installed inside the cabinet (10). One end of the water inlet pipe (20) is connected to the external water tank (40), and the other end extends into the cabinet (10) and is connected to the water inlet of the cooling pipe. One end of the water return pipe (30) is connected to the external water tank (40), and the other end extends into the cabinet (10) and is connected to the water outlet of the cooling pipe. The fan assembly (50) is installed on the side wall of the cabinet (10) to introduce outside air into the cabinet (10). The piston assembly (70) is movably disposed inside the water inlet pipe (20). One end of the transmission assembly (60) is connected to the fan assembly (50), and the other end is connected to the piston assembly (70). When the fan assembly (50) introduces outside air into the cabinet (10), the transmission assembly (60) transmits the rotational power of the fan assembly (50) to the piston assembly (70), causing the piston assembly (70) to reciprocate along the inside of the water inlet pipe (20) to pump the cooling water inside the external water tank (40) into the cooling pipe via the water inlet pipe (20), and then return it to the external water tank (40) via the return water pipe (30).

2. The circulating cooling device for a computer data center according to claim 1, characterized in that, An air inlet is provided on one side wall of the cabinet (10), and an exhaust outlet is provided on the other side wall of the cabinet (10) opposite to the air inlet. The fan assembly (50) includes fan blades (501), an inner casing (502), a rotating shaft (505), an annular outer casing (506), a support rod (507), and a drive component. The annular outer shell (506) is fixedly installed on the outer wall of the cabinet (10) and communicates with the air inlet. The inner casing (502) is fixedly installed inside the annular outer shell (506) by the support rod (507). The rotating shaft (505) passes through the inner casing (502) and rotates with the inner casing (502). The rotating shaft (505) is distributed along the axis of the annular outer shell (506). The fan blades (501) are provided in several groups, and several fan blades (501) are fixedly installed at one end of the rotating shaft (505). The driving component is located inside the annular housing (506) and is used to drive the rotating shaft (505) to rotate.

3. A circulating cooling device for a computer data center according to claim 2, characterized in that, The drive components include a transmission bevel gear (503), a drive bevel gear (504), and a motor (508). The transmission bevel gear (503) is fixedly installed on the shaft of the rotating shaft (505) located inside the inner box (502), the motor (508) is fixedly installed on the side wall of the inner box (502), and the drive bevel gear (504) is located at the output end of the motor (508) and meshes with the transmission bevel gear (503).

4. A circulating cooling device for a computer data center according to claim 2, characterized in that, The piston assembly (70) includes a piston cylinder (701), a baffle (704), and a second elastic element (705). The piston cylinder (701) is movably disposed inside the water inlet pipe (20). The baffle (704) is hinged to one end of the piston cylinder (701). One end of the second elastic element (705) is connected to the inner wall of the piston cylinder (701), and the other end is connected to the baffle (704) to provide elastic tension to the baffle (704). A one-way valve is provided inside the water inlet pipe (20) at a position between the piston cylinder (701) and the external water tank (40).

5. A circulating cooling device for a computer data center according to claim 4, characterized in that, The water inlet pipe fitting (20) has a sliding groove (201) on its side wall, and an annular stop block (202) is fixedly installed on the outside of the water inlet pipe fitting (20). The piston assembly (70) further includes an annular slider (702) and a first elastic element (703). The annular slider (702) is slidably sleeved on the outside of the water inlet pipe (20) and fixedly connected to the connecting rod (605). One end of the first elastic element (703) is connected to the annular stop (202), and the other end is connected to the annular slider (702), for providing elastic tension to the annular slider (702). The transmission assembly (60) includes a turntable (601), an arc rack (602), a transmission rod (603), a linear rack (604), and a connecting rod (605). The turntable (601) is fixedly disposed at one end of the rotating shaft (505) away from the fan blades (501). The arc-shaped rack (602) is provided in several groups. The arc-shaped racks (602) are fixedly disposed on the circumferential sidewall of the turntable (601) and distributed in a ring. The transmission rod (603) is disposed on the side of the turntable (601). The straight rack (604) is fixedly disposed on the sidewall of the transmission rod (603) and can mesh with the arc-shaped racks (602). One end of the connecting rod (605) is fixedly connected to the transmission rod (603), and the other end extends from the slide groove (201) into the water inlet pipe (20) and is fixedly connected to the piston cylinder (701).

6. A circulating cooling device for a computer data center according to claim 5, characterized in that, The length of the piston cylinder (701) is greater than the length of the slide groove (201). When the piston cylinder (701) moves back and forth inside the water inlet pipe (20), neither end of the piston cylinder (701) will move to the inside of the slide groove (201).

7. A circulating cooling device for a computer data center according to claim 5, characterized in that, The first elastic element (703) and the second elastic element (705) are springs or metal sheets.

8. A circulating cooling device for a computer data center according to claim 5, characterized in that, The return water pipe (30) is also provided with a flow limiting component (80). When the piston cylinder (701) moves in another direction along the inside of the inlet pipe (20), the flow limiting component (80) is used to limit the flow of cooling inside the return water pipe (30), so that the cooling water inside the cooling pipe remains still.

9. A circulating cooling device for a computer data center according to claim 8, characterized in that, The current limiting component (80) includes a current limiting plate (801) and a current limiting shell (802). The upper end of the current limiting plate (801) is fixedly connected to the transmission rod (603), and the lower end extends into the interior of the current limiting shell (802) and is movably engaged with the current limiting shell (802). The return water fitting (30) includes a first pipe body (301) and a second pipe body (302). One end of the second pipe body (302) extends into the cabinet (10) and is connected to the outlet end of the cooling fitting. The other end extends into the outside of the cabinet (10) and is fixedly connected to the flow-limiting shell (802). One end of the first pipe body (301) is fixedly connected to the flow-limiting shell (802), and the other end is connected to the external water tank (40).

10. A circulating cooling device for a computer data center according to claim 1, characterized in that, The cooling pipes are coiled or bent inside the cabinet (10).

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