Two-phase immersed liquid cooling device

Abstract

The invention discloses a two-phase immersed liquid cooling device which is applied to the technical field of heat dissipation equipment. The device comprises a closed container, wherein cooling liquid is arranged in the closed container; the condensation circulating mechanism is used for cooling the cooling liquid in the closed container; the heat source is immersed in the cooling liquid; the movement mechanism comprises a movement part and a driving part; at least part of the moving part is immersed in the cooling liquid, and the immersed part of the moving part is fixedly connected with the heat source; the driving part is in transmission connection with the moving part, and transmission of the driving part is used for moving and / or rotating the heat source to change distribution of cooling liquid around the heat source. After the heat source is driven to move, the position of the heat source is changed, so that the heat source is transferred from the original cooling liquid with higher temperature to the cooling liquid with lower temperature and drives the cooling liquid around the heat source to move, the cooling liquid is prevented from being still all the time, the heat transfer capacity of the cooling liquid is improved, and the heat dissipation effect of the two-phase immersed liquid cooling is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation equipment, and in particular to a two-phase immersion liquid cooling device. Background Art

[0002] In the current two-phase immersion liquid cooling technology, there is a key problem that needs to be solved urgently, that is, the fixed position of the heat source causes the temperature of the surrounding liquid to be too high, which in turn affects the heat dissipation efficiency. Specifically, in the traditional two-phase immersion cooling system, electronic equipment or high-power consumption components are used as heat sources. Since their position is fixed, after long-term operation, the coolant around the heat source will gradually heat up, forming the so-called "hot spot". This local high temperature not only reduces the heat transfer capacity of the coolant, but also may cause the heat dissipation effect of the heat source to be greatly reduced, thereby affecting the performance and stability of the equipment.

[0003] This problem is particularly prominent in high-density computing environments such as data centers, high-performance computing clusters, and supercomputing centers. With the continuous improvement of the integration of electronic components and the increase in power density, how to effectively manage the heat distribution near the heat source and avoid local overheating has become a key challenge to improve the overall heat dissipation performance and reliability of the system. Traditional air cooling or single-phase liquid cooling methods often seem to be powerless when faced with high heat flux density. Although two-phase immersion liquid cooling technology can provide higher heat exchange efficiency, its advantages are difficult to fully utilize when the heat source is fixed and the heat dissipation is uneven. Summary of the invention

[0004] The present invention provides a two-phase immersion liquid cooling device, which is used to solve the problem of poor heat dissipation effect of heat source in the prior art, so as to improve the heat dissipation effect of the two-phase immersion liquid cooling.

[0005] An embodiment of the present invention provides a two-phase immersion liquid cooling device, comprising:

[0006] A closed container, wherein a coolant is arranged in the closed container;

[0007] A condensation circulation mechanism, the condensation circulation mechanism is used to cool the coolant in the closed container;

[0008] a heat source, the heat source being immersed in the coolant;

[0009] The motion mechanism comprises a motion part and a driving part; the motion part is at least partially immersed in the coolant, and the immersed part of the motion part is connected and fixed to the heat source; the driving part is transmission-connected to the motion part, and the transmission of the driving part is used to move and / or rotate the heat source to change the distribution of the coolant around the heat source.

[0010] In some embodiments, the moving part is a rotating member, and at least a portion of the rotating member is rotatably disposed in the coolant.

[0011] In some embodiments, the sealed container is provided with a first mounting through hole;

[0012] The rotating member is a rotating shaft, and the rotating shaft is rotatably inserted into the sealed container through the first mounting through hole, and the rotating shaft is sealedly connected to the first mounting through hole;

[0013] The heat source is fixedly mounted on the penetration end of the rotating shaft;

[0014] The external end of the rotating shaft is transmission-connected to the driving unit, and the transmission of the driving unit is used to drive the rotating shaft to rotate.

[0015] In some embodiments, the moving portion is a moving member, and at least a portion of the moving member is movably disposed in the cooling liquid.

[0016] In some embodiments, the sealed container is provided with a second mounting through hole;

[0017] The moving member is a moving rod, and the moving rod is slidably arranged in the closed container through the second mounting through hole, and the moving rod is sealed and connected to the second mounting through hole;

[0018] The heat source is fixedly mounted on the penetration end of the moving rod;

[0019] The external end of the moving rod is in transmission connection with the driving part, and the transmission of the driving part is used to drive the penetration end of the moving rod to move closer to or farther from the second installation through hole.

[0020] In some embodiments, the driving portion includes a first driving member and a second driving member;

[0021] The moving part includes a rotating part and a moving part;

[0022] At least a part of the rotating member is rotatably disposed in the cooling liquid, the rotating member is fixedly connected to the heat source, the rotating member is transmission-connected to the first driving member, and the first driving member is used to drive the rotating member to rotate;

[0023] The first driving member is fixedly mounted on the moving member, and the moving member is transmission-connected with the second driving member, and the second driving member is used for driving the moving member to move.

[0024] In some embodiments, the sealed container is provided with a first mounting through hole;

[0025] The rotating member is a rotating shaft, which is rotatably and sealedly disposed in the closed container through the first mounting through hole, the rotating shaft is sealingly connected to the first mounting through hole, the insertion end of the rotating shaft is connected and fixed to the heat source, and the external end of the rotating shaft is drivingly connected to the first driving member.

[0026] In some embodiments, the sealed container is further provided with a third mounting through hole;

[0027] The motion mechanism also includes a telescopic sleeve and a guide rod;

[0028] The telescopic sleeve is arranged outside the peripheral side of the rotating shaft, the first mounting through hole and the third mounting through hole, one end of the telescopic sleeve is sealed and connected to the closed container, the other end of the telescopic sleeve is sealed and fixed with a baffle, the baffle is provided with an axle through hole for the rotating shaft to rotate through, the rotating shaft is sealed and connected to the axle through hole, and the coolant is located outside the telescopic sleeve;

[0029] The guide rod is slidably inserted into the closed container through the third mounting through hole, the guide rod is connected and fixed to the baffle, and the external end of the guide rod is connected and fixed to the moving part.

[0030] In some embodiments, the axial direction of the telescopic sleeve, the axial direction of the guide rod and the axial direction of the rotating shaft are parallel to each other.

[0031] In some embodiments, the rotation of the rotating member is a reciprocating rotation.

[0032] In some embodiments, the insertion end of the rotating shaft is connected to a hollow installation frame, and the heat source is connected and fixed to the hollow installation frame.

[0033] In some embodiments, an extension arm is fixedly connected to the hollow installation frame, the extension direction of the extension arm is toward the outer side of the hollow installation frame, and the heat source is connected and fixed to the extension arm.

[0034] It can be seen from the above technical solutions that the present invention has the following advantages:

[0035] An embodiment of the present invention provides a two-phase immersion liquid cooling device. Since the moving part is fixedly connected to the heat source, and the driving part is transmission-connected to the moving part, the driving part is used to move and / or rotate the heat source to change the distribution of the coolant around the heat source. Therefore, after the heat source is driven to move, the position of the heat source will change, so that the heat source is transferred from the original coolant with a higher temperature to the coolant with a lower temperature, avoiding the coolant around the heat source from being at a higher temperature all the time, thereby improving the heat dissipation effect of the heat source; and after the heat source is driven to rotate, the heat source can drive the coolant around it to move, avoiding the coolant from being stationary all the time, resulting in the phenomenon that the temperature of the insulating coolant near the heat source is higher and the temperature of the coolant in other areas is lower, thereby improving the heat transfer capacity of the coolant, and further improving the heat dissipation effect of the two-phase immersion liquid cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 A schematic diagram of the overall structure of a two-phase immersion liquid cooling device provided in Embodiment 1 of the present invention without a guide rod;

[0038] Figure 2 A schematic diagram of the overall structure of a two-phase immersion liquid cooling device provided in Embodiment 1 of the present invention with a guide rod;

[0039] Figure 3 A schematic diagram of a local enlarged structure provided in Embodiment 1 of the present invention Figure 1 ;

[0040] Figure 4 A schematic diagram of a local enlarged structure provided in Embodiment 1 of the present invention Figure 2 ;

[0041] Figure 5 A schematic diagram of the overall structure of a two-phase immersion liquid cooling device provided in Embodiment 2 of the present invention;

[0042] Figure 6 This is a schematic diagram of the overall structure of a two-phase immersion liquid cooling device provided in Example 3 of the present invention.

[0043] Reference numerals:

[0044] 1. Sealed container; 10. First mounting through hole; 11. Second mounting through hole; 12. Third mounting through hole; 2. Condensation circulation mechanism; 20. Condenser; 21. External circulation cooling pipe; 22. First connecting pipe; 23. Second connecting pipe; 3. Heat source; 4. Moving mechanism; 40. Moving part; 400. Rotating member; 401. Moving member; 41. Driving part; 410. First driving member; 411. Second driving member; 42. Telescopic sleeve; 43. Guide rod; 44. Baffle; 45. Hollow mounting frame; 450. Extension arm; 46. Rotating seal; 47. Bearing; 5. Coolant; 6. Coolant vapor. DETAILED DESCRIPTION

[0045] The embodiment of the present invention provides a two-phase immersion liquid cooling device, which is used to solve the problem of poor heat dissipation effect of the heat source in the prior art, so as to improve the heat dissipation effect of the two-phase immersion liquid cooling.

[0046] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figures 1 to 6 The present invention provides a two-phase immersion liquid cooling device, comprising:

[0048] A closed container 1, wherein a coolant 5 is arranged in the closed container 1;

[0049] The condensation circulation mechanism 2 is used to cool the coolant 5 in the closed container 1;

[0050] A heat source 3, the heat source 3 is immersed in the cooling liquid 5;

[0051] The moving mechanism 4 includes a moving part 40 and a driving part 41; the moving part 40 is at least partially immersed in the coolant 5, and the immersed part of the moving part 40 is connected and fixed to the heat source 3; the driving part 41 is transmission-connected to the moving part 40, and the transmission of the driving part 41 is used to move and / or rotate the heat source 3 to change the distribution of the coolant 5 around the heat source 3.

[0052] In a working process of the present embodiment, when the heat source 3 is installed and working, the driving part 41 is started to make the heat source 3 move along with the moving part 40, and the heat generated by the working of the heat source 3 will be dissipated to the coolant 5 in contact with the heat source 3. The coolant 5 will boil after being heated to form coolant vapor 6, which will rise to exchange heat with the condensation circulation mechanism 2. After condensing on the condensation circulation mechanism 2, the coolant vapor 6 will fall back into the closed container 1.

[0053] It can be seen from the above working process that the heat source 3 will always generate heat, so the temperature of the coolant 5 near the heat source 3 is always high, while the temperature of the coolant 5 in other areas far away from the heat source 3 is lower. After the driving unit 41 of this embodiment is started, it can drive the heat source 3 to move and / or rotate, so that the position of the heat source 3 is changed to change the distribution of the coolant 5 around the heat source 3, that is, the heat source 3 actively changes its position, and the heat source 3 actively transfers from the coolant 5 with a higher temperature to the coolant 5 with a lower temperature in other areas, and contacts with the coolant 5 with a lower temperature, so as to avoid the coolant 5 around the heat source 3 being in a high temperature state all the time, thereby improving the heat dissipation effect of the heat source 3; in addition, in the process of driving the heat source 3 to move and / or rotate, the coolant 5 will passively flow, and the distribution of the coolant 5 around the heat source 3 will change, that is, the coolant 5 passively flows, so that the original position of the coolant 5 around the heat source 3 is changed, so as to avoid the insulating coolant 5 being stationary all the time, resulting in the phenomenon that the temperature of the coolant 5 near the heat source 3 is higher, while the temperature of the insulating coolant 5 in other areas is lower, thereby improving the heat transfer capacity of the coolant 5, and thus improving the heat dissipation effect.

[0054] Compared with the prior art, the heat dissipation advantage of this embodiment is that the active movement of the heat source 3 combined with the passive flow of the coolant 5 can transform the coolant 5 on the side of the heat source 3 to the greatest extent, so that the heat source 3 is completely converted from a high-temperature environment to a low-temperature environment, avoiding the situation where only the cold source is moved while the heat source 3 does not move, resulting in the coolant 5 on the side of the heat source 3 away from the cold source remaining still, and the coolant 5 on the side facing away from the cold source not flowing, and the temperature is not easily affected by the cold source radiation, so that one side of the heat source 3 is still in a high-temperature state, and the problem of poor heat dissipation effect cannot be completely solved.

[0055] Embodiment 1

[0056] The first embodiment of the present invention provides a two-phase immersion liquid cooling device, such as Figure 1 and Figure 2 As shown, in this embodiment, the heat source 3 changes its position by moving and rotating, that is, after the driving part 41 works, it can drive the moving part 40 to rotate and move at the same time, so that the heat source 3 changes its position in both the linear direction and the circumferential direction. For example, the heat source 3 can be moved from Figure 1 In the upper right corner, transfer to Figure 1 Center left and located Figure 1 On the cut inner side of the heat source 3, the coolant 5 around the heat source 3 changes from the coolant 5 on the upper right side to the coolant 5 on the inner left side, the position of the heat source 3 itself changes, and the coolant 5 around the heat source 3 also moves accordingly, the distribution of the surrounding coolant 5 before and after the transfer of the heat source 3 completely changes, the high-temperature coolant 5 around the heat source 3 changes into the low-temperature coolant 5, and the heat dissipation effect of the heat source 3 is good.

[0057] In a specific embodiment, Figure 1 As shown, the driving part 41 includes a first driving member 410 and a second driving member 411; the moving part 40 includes a rotating member 400 and a moving member 401; the rotating member 400 is connected and fixed to the heat source 3, and the rotating member 400 is transmission-connected to the first driving member 410, and the first driving member 410 is used to drive the rotating member 400 to rotate; the first driving member 410 is fixedly installed on the moving member 401, and the moving member 401 is transmission-connected to the second driving member 411, and the second driving member 411 is used to drive the moving member 401 to move, and the second driving member 411 is fixedly connected to the outside of the closed container 1, and the synchronous movement and rotation of the heat source 3 are realized by driving the first driving member 410 and the second driving member 411.

[0058] In specific implementation, after the second driving member 411 is started, the movable member 401 and the rotating member 400 thereon and the first driving member 410 will move axially, thereby driving the heat source 3 on the rotating member 400 to move in a linear direction. After the first driving member 410 is started, the rotating member 400 will rotate, and the rotating member 400 will drive the heat source 3 to rotate, thereby realizing the circular rotation and linear movement of the heat source 3. It should be noted that the user can turn on only one of the first driving member 410 and the second driving member 411 as needed, or turn on both of them at the same time.

[0059] In this embodiment, if Figure 1 As shown, the rotating member 400 is a rotating shaft, and the sealed container 1 is provided with a first mounting through hole 10. The rotating shaft is rotatably and sealedly penetrated into the sealed container 1 through the first mounting through hole 10. The rotating shaft and the first mounting through hole 10 are sealed and connected via a rotating seal 46. The insertion end of the rotating shaft is connected and fixed to the heat source 3, and the external end of the rotating shaft is transmission-connected to the first driving member 410. The first driving member 410 is used to drive the rotating shaft to rotate, and the first driving member 410 will move axially under the movement of the moving member 401, thereby driving the rotating shaft and the heat source 3 thereon to move in a linear direction, thereby realizing the axial movement and circumferential rotation of the heat source 3.

[0060] Among them, the first driving member 410 and the second driving member 411 are both located outside the sealed container 1. On the one hand, it is convenient to repair and replace the first driving member 410 and the second driving member 411, and on the other hand, it prevents the heat of the first driving member 410 and the second driving member 411 from being transferred to the coolant 5.

[0061] In this embodiment, the first driving member 410 adopts a servo motor. The servo motor is a high-performance motor that is used to accurately control the movement of mechanical components in a servo system. The servo motor can control speed, position and torque, has a high degree of accuracy and response speed, and can accurately control the rotation angle of the shaft.

[0062] In this embodiment, if Figure 1 As shown, the moving member 401 is a moving baffle, which is connected and fixed to the output moving part of the second driving member 411. The second driving member 411 adopts a hydraulic cylinder or a linear motor. The moving baffle is connected and fixed to the hydraulic telescopic rod of the hydraulic cylinder or the slider of the linear motor, thereby realizing the movement of the moving member 401.

[0063] In a specific embodiment, Figures 2 to 4 As shown, in order to improve the supporting strength of the rotating shaft, the closed container 1 is also provided with two third mounting through holes 12; the moving mechanism 4 also includes a telescopic sleeve 42 and two guide rods 43; the telescopic sleeve 42 is arranged outside the peripheral side of the rotating shaft, the first mounting through hole 10 and the third mounting through hole 12, one end of the telescopic sleeve 42 is sealed and connected to the closed container 1, and the other end of the telescopic sleeve 42 is sealed and fixed with a baffle 44, the baffle 44 is provided with an through-axis through hole for the rotating shaft to rotate through, and the rotating shaft and the through-axis through hole are sealed and connected by a rotating seal 46, so that the coolant 5 is located outside the telescopic sleeve 42, and the coolant 5 cannot leak into the telescopic sleeve 42 and contact the guide rods 43 and the rotating shaft; the two guide rods 43 are installed in the third mounting through hole 12 through a linear bearing 47, and the two guide rods 43 are slidably penetrated into the closed container 1 through the third mounting through hole 12, the two guide rods 43 are connected and fixed to the baffle 44, and the external ends of the two guide rods 43 are connected and fixed to the moving part 401.

[0064] During specific implementation, the guide rod 43 moves axially with the movable part 401, and the guide rod 43 drives the baffle 44 and the end of the telescopic sleeve 42 to move. After the two guide rods 43 penetrate into the closed container 1, they are connected with the baffle 44 of the telescopic sleeve 42. A rotating shaft is installed on the baffle 44. The arrangement of the guide rod 43, the telescopic sleeve 42 and the baffle 44 provides additional support points for the rotating shaft. Multi-point support can prevent the rotating shaft from being subjected to excessive force and causing deformation and bending. In addition, since the guide rod 43 and the rotating shaft are partially located in the telescopic sleeve 42, the space in the telescopic sleeve 42 is fully utilized to arrange the guide rod 43 and the rotating shaft, and the structure is compact.

[0065] In addition, if Figure 4 As shown, after the shaft through hole on the baffle 44 is sealed and connected with the rotating shaft through the rotating seal 46, as shown in FIG. Figure 3As shown, the sealing requirements of the guide rod 43, the rotating shaft and the closed container 1 are greatly reduced. It is only necessary to ensure that there is a dynamic seal between the baffle 44 and the rotating shaft to prevent the coolant 5 from leaking out. The guide rod 43 and the rotating shaft can be dynamically connected using a linear bearing 47. Therefore, the embodiment of setting a telescopic tube is better in terms of reliability and ease of manufacturing.

[0066] In this embodiment, the rotary seal 46 is provided to achieve shaft sealing to prevent leakage of the coolant 5, and the rotary seal 46 is a commercially available product well known in the art, and its specific structure and working principle will not be elaborated in this embodiment.

[0067] In this embodiment, the telescopic sleeve 42 is made of a rubber bellows or a plastic bellows, which has excellent water-proof performance and can prevent the leakage of the coolant 5 in the closed container 1.

[0068] In a specific embodiment, considering that the heat source 3 often needs to be connected to an external device via a cable, in order to avoid the problem of the wires of the heat source 3 being entangled due to excessive rotation, the rotation of the rotating member 400 is a reciprocating rotation, that is, when the heat source 3 is driven to rotate by the first driving member 410, the heat source 3 can be driven to rotate reciprocatingly, that is, rotate forward once and then reverse once, to achieve continuous rotation of the heat source 3, but the range of rotation is limited, such as 0°~180°, to avoid the cables being entangled, and the specific rotation angle range can be adaptively adjusted according to actual needs.

[0069] In a specific embodiment, Figure 2 As shown, in order to improve the working stability of the device, the axial direction of the telescopic sleeve 42, the axial direction of the guide rod 43 and the axial direction of the rotating shaft are parallel to each other, and the rotating shaft is parallel to the guide rod 43. The guide rod 43 not only guides the movement of the telescopic rod, but also enables the telescopic sleeve 42 to maintain a straight tube state during the movement, wherein the axial direction of the rotating shaft remains horizontal. However, in actual applications, the axial direction of the telescopic tube can also be tilted or vertical according to actual needs.

[0070] In a specific embodiment, Figure 2 As shown, in order to reduce heat transfer between heat sources 3, the insertion end of the rotating shaft is connected with a hollow mounting frame 45, and the hollow mounting frame 45 is formed by a plurality of frame bars connected and fixed. The hollow mounting frame 45 is connected and fixed with a heat source 3. In specific implementation, multiple heat sources 3 are installed on the hollow mounting frame 45. Due to the hollow structural design of the mounting frame, the entire outer side of the heat source 3 is wrapped by the coolant 5, and the part connected to the frame is relatively small. The heat of different heat sources 3 is less transferred through the frame, and most of the heat is dissipated into the coolant 5, thereby reducing heat transfer between different heat sources 3.

[0071] In a specific embodiment, Figure 2As shown, a structure of a hollow mounting frame 45 is further provided, and a plurality of extension arms 450 are fixedly connected to the hollow mounting frame 45. The extension directions of the plurality of extension arms 450 are toward different directions outside the hollow mounting frame 45. For example, the extension direction of one extension arm 450 is Figure 2 The extending direction of the other extension arm 450 is Figure 2 On the right side, a heat source 3 is connected and fixed to the extension arm 450. Different heat sources 3 are installed on different extension arms 450. The distance between adjacent heat sources 3 is large, and the heat of the heat sources 3 will not be transferred to each other, further improving the cooling and heat dissipation effect of the coolant 5.

[0072] As a possible example, Figure 1 and Figure 2 As shown, this example provides a feasible structure of a condensation circulation mechanism 2, including a condenser 20 and an external circulation cooling pipe 21, the condenser 20 is arranged in a closed container 1, the condenser 20 is located at the top of the closed container 1, the external circulation cooling pipe 21 is arranged outside the closed container 1, one end of the condenser 20 is connected to one end of the external circulation cooling pipe 21 through a first connecting pipe 22, and the other end of the condenser 20 is connected to the other end of the external circulation cooling pipe 21 through a second connecting pipe 23, so as to achieve the purpose of cooling the coolant 5 in the closed container 1. It should be pointed out that the condenser 20 and the external circulation cooling pipe 21 are both conventional storage devices in the prior art, and those skilled in the art can set and adjust them according to actual needs. This part is not an innovation of the present application and can be set with reference to the prior art.

[0073] The first connecting pipe 22 and the second connecting pipe 23 both pass through the top plate of the sealed container 1 , and the first connecting pipe 22 and the second connecting pipe 23 are both sealed and connected to the top plate to prevent leakage of the coolant vapor 6 .

[0074] As a possible example, the heat source 3 in this embodiment can be various processor chips, a battery module including multiple battery groups, various server components with multiple processors and multiple hard disks, or an inverter or rectifier.

[0075] Embodiment 2

[0076] Embodiment 2 of the present invention provides a two-phase immersion liquid cooling device, please refer to Figure 5As shown, it is basically the same as the first embodiment, the difference is that the position change mode of the heat source 3 is different, that is, the position change of the heat source 3 is not formed by simultaneous rotation and movement, but the heat source 3 changes position in a simple rotation manner, that is, after the driving part 41 works, it can drive the moving part 40 to rotate, so that the heat source 3 changes position in the circumferential direction, thereby changing the distribution of the coolant 5 around the heat source 3. Compared with the first embodiment, although the effect of this embodiment is reduced, it can also change the distribution of the coolant 5 around the heat source 3, thereby improving the heat dissipation effect, and from the perspective of maintenance, this embodiment only needs to focus on the maintenance of the rotating part 400, with a small maintenance amount and more convenient maintenance.

[0077] As a possible example, Figure 5 As shown, the moving part 40 is a rotating member 400, and at least a part of the rotating member 400 is rotatably arranged in the coolant 5, that is, the rotating member 400 can be arranged in the coolant 5 as a whole to rotate, and can also be partially arranged in the coolant 5 to rotate. Through the rotation of the rotating member 400, the heat source 3 located on the side of the moving part 40 will change its position in the circumferential direction, thereby changing the coolant 5 around the heat source 3; and the heat source 3 located at the end of the moving part 40 will stir the coolant 5 at the original position, so that the coolant 5 at the original position will passively flow, and the distribution of the coolant 5 around the heat source 3 can also be changed.

[0078] In a specific embodiment, Figure 5 As shown, the sealed container 1 is provided with a first mounting through hole 10; the rotating member 400 is a rotating shaft, which is rotatably penetrated into the sealed container 1 through the first mounting through hole 10, and the rotating shaft is sealed and connected to the first mounting through hole 10 through a rotating sealing member 46; a heat source 3 is fixedly installed at the insertion end of the rotating shaft; the external end of the rotating shaft is transmission-connected to the driving part 41, and the transmission of the driving part 41 is used to drive the rotating shaft to rotate.

[0079] During specific implementation, after the driving unit 41 is started, the rotating shaft will rotate in the rotating seal 46, so that the heat source 3 on the rotating shaft will rotate in the coolant 5. During the rotation process, the heat source 3 will rotate from the original high-temperature environment position to the low-temperature environment position, and during the rotation process, a vortex will be formed in the coolant 5, stirring the coolant 5 at the original position, causing the coolant 5 at the original position to flow passively, and can also change the distribution of the coolant 5 around the heat source 3.

[0080] In this embodiment, the driving part 41 adopts a servo motor, and its role is basically the same as that of the first embodiment, so as to make the rotating shaft rotate accurately.

[0081] Embodiment 3

[0082] Embodiment 3 of the present invention provides a two-phase immersion liquid cooling device, please refer to Figure 6 , which is basically the same as the first embodiment, the difference is that the position change mode of the heat source 3 is different, that is, the movement of the heat source 3 is not simultaneous rotation and movement, but the heat source 3 changes its position in a simple moving manner, that is, after the driving part 41 works, it can drive the moving part 40 to move, so that the heat source 3 changes its position in the axial direction, thereby changing the distribution of the coolant 5 around the heat source 3. Compared with the first embodiment, although the effect of this embodiment is reduced, it can also change the distribution of the coolant 5 around the heat source 3, thereby improving the heat dissipation effect, and from the perspective of maintenance, this embodiment only needs to focus on the maintenance of the moving part 401, with a small maintenance amount and more convenient maintenance.

[0083] As a possible example, Figure 6 As shown, the moving part 40 is a moving member 401, and at least a part of the moving member 401 is arranged in the coolant 5 in a movable form, that is, the moving member 401 can be arranged in the coolant 5 as a whole to move, and can also be arranged in the coolant 5 partially to move. Through the movement of the moving member 401, the heat source 3 located on the moving part 40 will change its position in the diameter direction, thereby changing the distribution of the coolant 5 around the heat source 3.

[0084] In a specific embodiment, Figure 6 As shown, the sealed container 1 is provided with a second mounting hole 11; the moving member 401 is a moving rod, which is slidably arranged in the sealed container 1 through the second mounting hole 11, and the moving rod is sealed and connected to the second mounting hole 11; a heat source 3 is installed and fixed at the insertion end of the moving rod; the external end of the moving rod is transmission-connected with the driving part 41, and the transmission of the driving part 41 is used to drive the insertion end of the moving rod to move closer to or farther from the second mounting hole 11, thereby driving the heat source 3 to move closer to or farther from the second mounting hole 11 in a straight line direction, resulting in a position change.

[0085] In a specific implementation, the heat source 3 located on the moving rod will change its position in the axial direction along with the moving rod, and the heat source 3 will be transferred from the coolant 5 at a hotter position to the coolant 5 at a colder position. In addition, during the movement of the heat source 3, the coolant 5 at the original position will be stirred, causing the coolant 5 at the original position to flow passively, and the distribution of the coolant 5 around the heat source 3 can also be changed.

[0086] In this embodiment, the driving part 41 adopts a hydraulic cylinder or a linear motor, and the moving baffle is connected and fixed to the hydraulic telescopic rod of the hydraulic cylinder or the slider of the linear motor, so as to realize the movement of the moving member 401.

[0087] It can be seen from Examples 1 to 3 that Example 1 is a structure and heat dissipation method for changing the position of the heat source 3 by simultaneous rotation and movement, Example 2 is a structure and heat dissipation method for changing the position of the heat source 3 by rotation, and Example 3 is a structure and heat dissipation method for changing the position of the heat source 3 by movement. Although the positions of the heat sources in the three embodiments are different, the core of the three is that the distribution of the coolant 5 around the heat source 3 is changed by actively changing the position of the heat source 3 and passively flowing the coolant 5, so as to transfer the heat from the coolant 5 with a higher temperature to the coolant 5 with a lower temperature, thereby improving the heat transfer capacity of the coolant 5, and taking a two-pronged approach to improve the heat dissipation effect of the two-phase immersion liquid cooling.

[0088] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0089] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A two-phase immersion liquid cooling device, characterized in that: include: A closed container, wherein a coolant is arranged in the closed container; A condensation circulation mechanism, the condensation circulation mechanism is used to cool the coolant in the closed container; a heat source, the heat source being immersed in the coolant; A motion mechanism, the motion mechanism comprising a motion part and a driving part; the motion part is at least partially immersed in the coolant, and the immersed part of the motion part is connected and fixed to the heat source; the driving part is transmission-connected to the motion part, and the transmission of the driving part is used to move and / or rotate the heat source to change the distribution of the coolant around the heat source.

2. The two-phase immersion liquid cooling device according to claim 1, characterized in that: The moving part is a rotating member, and at least a part of the rotating member is rotatably arranged in the cooling liquid.

3. The two-phase immersion liquid cooling device according to claim 2, characterized in that: The sealed container is provided with a first mounting through hole; The rotating member is a rotating shaft, and the rotating shaft is rotatably inserted into the sealed container through the first mounting through hole, and the rotating shaft is sealedly connected to the first mounting through hole; The heat source is fixedly mounted on the penetration end of the rotating shaft; The external end of the rotating shaft is transmission-connected to the driving unit, and the transmission of the driving unit is used to drive the rotating shaft to rotate.

4. The two-phase immersion liquid cooling device according to claim 1, characterized in that: The moving part is a moving member, and at least a part of the moving member is movably arranged in the cooling liquid.

5. The two-phase immersion liquid cooling device according to claim 4, characterized in that: The sealed container is provided with a second mounting through hole; The moving member is a moving rod, and the moving rod is slidably arranged in the closed container through the second mounting through hole, and the moving rod is sealed and connected to the second mounting through hole; The heat source is fixedly mounted on the penetration end of the moving rod; The external end of the moving rod is in transmission connection with the driving part, and the transmission of the driving part is used to drive the penetration end of the moving rod to move closer to or farther from the second installation through hole.

6. The two-phase immersion liquid cooling device according to claim 1, characterized in that: The driving part includes a first driving member and a second driving member; The moving part includes a rotating part and a moving part; At least a part of the rotating member is rotatably disposed in the cooling liquid, the rotating member is fixedly connected to the heat source, the rotating member is drivingly connected to the first driving member, the first driving member is used to drive the rotating member to rotate, and the first driving member is mounted and fixed on the moving member; The moving member is in transmission connection with the second driving member, and the second driving member is used for driving the moving member to move.

7. The two-phase immersion liquid cooling device according to claim 6, characterized in that: The sealed container is provided with a first mounting through hole; The rotating member is a rotating shaft, which is rotatably and sealedly inserted into the closed container through the first mounting through hole, the insertion end of the rotating shaft is connected and fixed to the heat source, and the external end of the rotating shaft is drivingly connected to the first driving member.

8. The two-phase immersion liquid cooling device according to claim 7, characterized in that: The sealed container is also provided with a third mounting through hole; The motion mechanism also includes a telescopic sleeve and a guide rod; The telescopic sleeve is arranged outside the peripheral side of the rotating shaft, the first mounting through hole and the third mounting through hole, one end of the telescopic sleeve is sealed and connected to the closed container, the other end of the telescopic sleeve is sealed and fixed with a baffle, the baffle is provided with an axle through hole for the rotating shaft to rotate through, the rotating shaft is sealed and connected to the axle through hole, and the coolant is located outside the telescopic sleeve; The guide rod is slidably inserted into the closed container through the third mounting through hole, the guide rod is connected and fixed to the baffle, and the external end of the guide rod is connected and fixed to the moving part.

9. The two-phase immersion liquid cooling device according to claim 8, characterized in that: The axial direction of the telescopic sleeve, the axial direction of the guide rod and the axial direction of the rotating shaft are parallel to each other.

10. The two-phase immersion liquid cooling device according to any one of claims 2, 3, 6 and 7, characterized in that: The rotation of the rotating member is reciprocating rotation.

11. The two-phase immersion liquid cooling device according to any one of claims 3 or 7, characterized in that: The insertion end of the rotating shaft is connected with a hollow installation frame, and the heat source is connected and fixed to the hollow installation frame.

12. The two-phase immersion liquid cooling device according to claim 11, characterized in that: A plurality of extension arms are fixedly connected to the hollow installation frame, and the extension directions of the plurality of extension arms are respectively oriented toward different directions outside the hollow installation frame, and the heat source is connected and fixed to each of the extension arms.

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