Fin radiator and liquid cooling system
By designing multiple parallel-spaced heat dissipation fins and air circulation channels, combining condensation and surface cooling heat exchange modules, the problem of waste of fin heat exchange area and low effect in the liquid-cooling unit is solved, and more efficient heat dissipation effect and miniaturized design are achieved.
Patent Information
- Application Number
- CN202422056421.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The heat dissipation fins of the condenser and the meter cooler in the existing liquid-cooling unit are independently set, resulting in waste of heat exchange area of the fin and low heat exchange effect.
A fin radiator is designed, including multiple heat dissipation fins arranged in parallel spaces, and an air circulation channel is formed between the two adjacent fins. Through holes are formed on each fin for a set of heat exchange tubes to form a condensation and surface-cool heat exchange module.
By sharing the integrated structure of the heat dissipation fins, the heat dissipation area and effect under any operating conditions are improved, the volume of the entire radiator is reduced, suitable for miniaturization design, and the processing process is simplified.
Smart Images
Figure CN223005376U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of air conditioning, and particularly relates to a fin radiator and a liquid cooling system. Background Art
[0002] Generally, there are two layout methods for the condenser and the surface cooler of a liquid cooling unit. One is that the surface cooler and the condenser are separated and connected by a partition. Since the condenser and the surface cooler are not used simultaneously, this layout method will waste the fins on one side, with limited heat exchange area and poor effect, and the partition and fins will block the wind and affect the heat exchange effect. The other method is that the condenser and the surface cooler are fixed together through end plates, and each row of heat exchange tube fins is separated. One side is the condenser and the other side is the surface cooler. In this layout method, there are gaps between the fins, which affects the heat exchange effect, and there is also a situation of wasting the heat exchange area of the fins. Summary of the Utility Model
[0003] Therefore, the utility model provides a fin radiator and a liquid cooling system, which can solve the technical problems that the heat dissipation fins of the condenser and the surface cooler in the existing liquid cooling unit are independently arranged, resulting in waste of the heat exchange area of the heat dissipation fins and low heat exchange effect.
[0004] To solve the above problems, the utility model provides a fin radiator, which includes a plurality of heat dissipation fins arranged in parallel at intervals. An air flow channel is formed between two adjacent heat dissipation fins. A plurality of first through holes and a plurality of second through holes penetrating through the opposite two sides of each heat dissipation fin are formed on each heat dissipation fin. The fin radiator further includes a plurality of first heat exchange tubes for circulating refrigerant and a plurality of second heat exchange tubes for circulating coolant. Each heat dissipation fin is sleeved on each first heat exchange tube through each first through hole at the corresponding position to form a condensation heat exchange module, and each heat dissipation fin is sleeved on each second heat exchange tube through each second through hole at the corresponding position to form a surface cooling heat exchange module.
[0005] In some embodiments, the fin radiator further includes an outer frame, which has a first end plate and a second end plate arranged in parallel at intervals. A plurality of first through holes for passing through and supporting each first heat exchange tube and second heat exchange tube are respectively formed on the first end plate and the second end plate.
[0006] In some embodiments, the outer frame further includes a third end plate and a fourth end plate arranged in parallel at intervals. The third end plate is connected to the first ends of the first end plate and the second end plate respectively, and the fourth end plate is connected to the second ends of the third end plate and the fourth end plate respectively to enclose a central installation area of the outer frame. Each heat dissipation fin is located in the central installation area.
[0007] In some embodiments, a middle partition is provided in the central installation area. The middle partition is connected to the middle positions of the third end plate and the fourth end plate, and a plurality of second through holes for passing through and supporting each of the first heat exchange tubes and the second heat exchange tubes are formed on the middle partition.
[0008] In some embodiments, first elbows are connected to one ends of adjacent two first heat exchange tubes corresponding to the first end plate to form a plurality of first U-shaped heat exchange tubes, and second elbows are connected to the opposite ends of adjacent two second heat exchange tubes corresponding to the first end plate to form a plurality of second U-shaped heat exchange tubes.
[0009] In some embodiments, one end of each first U-shaped heat exchange tube corresponding to the second end plate has a first refrigerant port and a second refrigerant port. Each first refrigerant port is connected to a liquid collecting pipe, and each second refrigerant port is connected to a gas distributing pipe. One end of each second U-shaped heat exchange tube corresponding to the second end plate has a first coolant port and a second coolant port. Each first coolant port is connected to a water outlet pipe, and each second coolant port is connected to a water inlet pipe. The gas distributing pipe has a first on-off valve capable of controlling its on-off, and the water inlet pipe has a second on-off valve capable of controlling its on-off.
[0010] In some embodiments, the orifices of each of the first through holes and the second through holes have flanges protruding along the axial direction of the first heat exchange tube; and / or, there are multiple condensation heat exchange modules and surface cooling heat exchange modules.
[0011] The present invention also provides a liquid cooling system, including a refrigerant cycle and a coolant cycle. Among them, the refrigerant in the refrigerant cycle and the coolant in the coolant cycle can both condense in the aforementioned finned radiator, and the refrigerant in the refrigerant cycle can exchange heat with the coolant in the coolant cycle in a plate heat exchanger.
[0012] In some embodiments, the refrigerant cycle includes a compressor, the condensation heat exchange module, a throttling element, and an evaporation heat exchange flow path in the plate heat exchanger that form a refrigerant cycle connection. The coolant cycle includes a water pump, the surface cooling heat exchange module, a coolant heat exchange flow path in the plate heat exchanger, and a cooling end corresponding to the cooling object that form a coolant cycle connection. The coolant cycle further includes a bypass pipeline with controllable on-off, and the bypass pipeline is connected in parallel with the surface cooling heat exchange module.
[0013] The finned radiator and the liquid cooling system provided by the present invention have the following beneficial effects:
[0014] The first heat exchange tube through which the refrigerant flows and the second heat exchange tube through which the secondary coolant flows share the heat dissipation fins with an integrated structure. Since there is no situation where the media (i.e., the aforementioned refrigerant or secondary coolant) flow through the first heat exchange tube and the second heat exchange tube simultaneously, in this way, regardless of which of the condensation heat exchange module and the surface cooling heat exchange module is selected for use, the heat dissipation fins can conduct heat and dissipate heat for the corresponding heat exchange tubes. Compared with the relevant structures in the prior art, the heat dissipation area of the heat dissipation fins of the radiator in the present invention is greatly increased and the heat dissipation effect is better under any operating conditions, and the volume of the entire fin radiator will not be increased. On the premise of the same heat dissipation requirements, the fin radiator in the present invention can be designed to be smaller and have fewer heat exchange flow paths, which is conducive to the miniaturized design of the device, the structure is more compact, and the internal space can be saved more effectively. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. The drawings in the following description are only exemplary. For those of ordinary skill in the art, other implementation drawings can be obtained by extension based on the provided drawings without creative efforts.
[0016] Figure 1 is a three-dimensional structural schematic diagram of the fin radiator according to an embodiment of the present invention from a perspective (the external connecting pipes are omitted);
[0017] Figure 2 is Figure 1 the front view of
[0018] Figure 3 is Figure 2 the right view (partial) of
[0019] Figure 4 is Figure 2 the left view (partial) of
[0020] Figure 5 is Figure 1 the structural schematic diagram of the heat dissipation fins in
[0021] Figure 6 is Figure 1 the three-dimensional structural schematic diagram of the middle partition plate in
[0022] Figure 7 is the front view (including external connecting pipes) of the fin radiator of the present invention;
[0023] Figure 8 is Figure 7 the right view of
[0024] Figure 9 isFigure 7 Top view;
[0025] Figure 10 It is a schematic diagram of the principle of the liquid cooling system according to an embodiment of the present utility model.
[0026] The reference numerals are as follows:
[0027] 11. Heat dissipation fins; 111. First through hole; 112. Second through hole; 21. First heat exchange tube; 22. Second heat exchange tube; 23. First elbow; 24. Second elbow; 31. Condensation heat exchange module; 32. Surface cooling heat exchange module; 41. First end plate; 42. Second end plate; 43. First through hole for passing through; 44. Third end plate; 45. Fourth end plate; 46. Middle partition plate; 47. Second through hole for passing through; 51. Liquid collecting pipe; 52. Gas distributing pipe; 521. First on-off valve; 53. Water outlet pipe; 54. Water inlet pipe; 541. Second on-off valve;
[0028] 100. Compressor; 101. Throttling element; 102. IPM heat sink; 103. Oil separator; 104. Gas-liquid separator; 105. Capillary tube; 106. Fourth on-off valve;
[0029] 202. Cooling terminal; 204. Third on-off valve; 205. Flowmeter; 206. Electromagnetic three-way valve;
[0030] 300. Plate heat exchanger; 301. Condensation fan; 302. Filter; 303. Check valve. Detailed implementation manners
[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so they should not be construed as limiting the scope of protection of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0033] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90° or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made.
[0034] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without further statement, these terms have no special meaning, and thus should not be construed as limiting the protection scope of the present utility model.
[0035] See also in conjunction with Figures 1 to 10As shown, according to an embodiment of the present utility model, a fin radiator is provided, which includes a plurality of heat dissipation fins 11 arranged in parallel at intervals. An air flow channel is formed between two adjacent heat dissipation fins 11. A plurality of first through holes 111 and a plurality of second through holes 112 penetrating through the opposite two sides of each heat dissipation fin 11 are formed on each heat dissipation fin 11. The fin radiator further includes a plurality of first heat exchange tubes 21 for circulating refrigerant and a plurality of second heat exchange tubes 22 for circulating coolant. Each heat dissipation fin 11 is sleeved on each first heat exchange tube 21 through each first through hole 111 at the corresponding position to form a condensation heat exchange module 31, and each heat dissipation fin 11 is sleeved on each second heat exchange tube 22 through each second through hole 112 at the corresponding position to form a surface cooling heat exchange module 32. In the specific application process, the refrigerant (i.e., the refrigerant) in the first heat exchange tube 21 or the coolant (such as cooling water) in the second heat exchange tube 22 conducts its heat to each heat dissipation fin 11 sleeved outside its tube wall, and the external air enters each air flow channel and contacts with each heat dissipation fin 11 for heat exchange, so as to achieve the purpose of finally dissipating the heat in the refrigerant or the coolant to the external environment. In this technical solution, the condensation heat exchange module 31 and the surface cooling heat exchange module 32 are not used simultaneously in the actual application process, but one of them is selected according to the external environmental temperature. That is, there is no heat exchange between the first heat exchange tube 21 and the second heat exchange tube 22. It can be understood that the foregoing heat dissipation fins 11 are of an integrated fin structure, and the material of the foregoing heat dissipation fins 11 can be aluminum.
[0036] In this technical solution, the first heat exchange tube 21 for circulating refrigerant and the second heat exchange tube 22 for circulating coolant share the integrated heat dissipation fins 11. Since there is no situation where the first heat exchange tube 21 and the second heat exchange tube 22 simultaneously circulate the medium (i.e., the refrigerant or the coolant mentioned above), thus, no matter which module in the condensation heat exchange module 31 and the surface cooling heat exchange module 32 is selected for use, the heat dissipation fins 11 can conduct heat and dissipate heat for the corresponding heat exchange tubes. Compared with the related structures in the prior art, the heat dissipation area of the heat dissipation fins 11 of the radiator in the present utility model is greatly increased and the heat dissipation effect is better under any working condition, and the volume of the entire fin radiator will not be increased. On the premise of the same heat dissipation requirement, the fin radiator in the present utility model can be designed to be smaller and have fewer heat exchange flow paths, which is beneficial to the miniaturization design of the device, the structure is more compact, and the internal space can be saved more. In addition, the condensers and surface coolers in traditional liquid cooling units need to be processed separately, and the processing cost is high. However, the condenser (i.e., the condensation heat exchange module 31) and the surface cooler (i.e., the surface cooling heat exchange module 32) in the present utility model share the same heat dissipation fins 11, so the processing of the fin heat exchanger is more convenient. It can be bent integrally, and the U-shaped tube can be inserted conveniently, which can effectively save labor and reduce costs.
[0037] In some embodiments, the fin radiator further includes an outer frame (not labeled in the figure). The outer frame has a first end plate 41 and a second end plate 42 that are arranged in parallel and spaced apart. A plurality of first through holes 43 that penetrate and support each of the first heat exchange tubes 21 and the second heat exchange tubes 22 are respectively formed on the first end plate 41 and the second end plate 42. The outer frame further includes a third end plate 44 and a fourth end plate 45 that are arranged in parallel and spaced apart. The third end plate 44 is connected to the first ends of the first end plate 41 and the second end plate 42 respectively, and the fourth end plate 45 is connected to the second ends of the third end plate 44 and the fourth end plate 45 respectively, so as to enclose a central installation area of the outer frame. Each of the heat dissipation fins 11 is located within the central installation area.
[0038] In this technical solution, on the one hand, the first end plate 41 and the second end plate 42 can form a reliable and stable frame structure for the first heat exchange tube 21 and the second heat exchange tube 22. On the other hand, the outer frame can clamp and protect the heat dissipation fins sleeved on each heat exchange tube.
[0039] In some embodiments, a middle partition plate 46 is provided in the central installation area. The middle partition plate 46 is connected to the middle positions of the third end plate 44 and the fourth end plate 45, and a plurality of second through holes 47 that penetrate and support each of the first heat exchange tubes 21 and the second heat exchange tubes 22 are formed on the middle partition plate 46.
[0040] In this technical solution, by providing the middle partition plate 46 in the central installation area, a reliable support can be formed for the middle area of the length of each heat exchange tube, preventing the heat exchange tube from being easily bent at the middle position of the length due to excessive length.
[0041] In some embodiments, a first elbow 23 is connected to one end of two adjacent first heat exchange tubes 21 corresponding to the first end plate 41 to form a plurality of first U-shaped heat exchange tubes, and a second elbow 24 is connected to the opposite end of two adjacent second heat exchange tubes 22 corresponding to the first end plate 41 to form a plurality of second U-shaped heat exchange tubes.
[0042] In this technical solution, one end of two adjacent first heat exchange tubes 21 in the condensation heat exchange module 31 is connected through the first elbow 23, and one end of two adjacent second heat exchange tubes 22 in the surface cooling heat exchange module 32 is connected through the second elbow 24, which can increase the tube pass of the heat exchange tubes in the radiator, thereby improving the heat dissipation effect of the radiator.
[0043] In some embodiments, one end of each of the first U-shaped heat exchange tubes corresponding to the second end plate 42 is provided with a first refrigerant port and a second refrigerant port. Each of the first refrigerant ports is connected to a liquid collecting pipe 51, and each of the second refrigerant ports is connected to a gas distributing pipe 52. One end of each of the second U-shaped heat exchange tubes corresponding to the second end plate 42 is provided with a first secondary refrigerant port and a second secondary refrigerant port. Each of the first secondary refrigerant ports is connected to a water outlet pipe 53, and each of the second secondary refrigerant ports is connected to a water inlet pipe 54. The gas distributing pipe 52 is provided with a first on-off valve 521 capable of controlling its on-off, and the water inlet pipe 54 is provided with a second on-off valve 541 capable of controlling its on-off. The foregoing first on-off valve 521 and second on-off valve 541 may specifically be electromagnetic on-off valves.
[0044] In this technical solution, the first on-off valve 521 is provided at the gas distributing pipe 52, and the second on-off valve 541 is provided at the water inlet pipe 54 to realize the on-off control of the condensation heat exchange module 31 and the surface cooling heat exchange module 32. Furthermore, one of the condensation heat exchange module 31 and the surface cooling heat exchange module 32 can be selected according to the external environmental temperature to ensure that the condensation temperature and refrigerating capacity of the unit are always within a suitable range.
[0045] In a preferred embodiment, there are multiple condensation heat exchange modules 31 and surface cooling heat exchange modules 32. The foregoing first on-off valve 521 is provided at the gas distributing pipe 52 respectively provided for each of the condensation heat exchange modules 31, and the foregoing second on-off valve 541 is provided at the water inlet pipe 54 respectively provided for each of the surface cooling heat exchange modules 32. Thus, the number of the condensation heat exchange modules 31 and surface cooling heat exchange modules 32 participating in heat dissipation can be adjusted by controlling the on-off of each first on-off valve 521 and second on-off valve 541 to ensure that the condensation temperature and refrigerating capacity of the unit are always within a suitable range. When there are multiple condensation heat exchange modules 31 and surface cooling heat exchange modules 32 respectively, each of the condensation heat exchange modules 31 and surface cooling heat exchange modules 32 can be alternately arranged in sequence along the axial direction of the first heat exchange tube 21. Of course, an arrangement method in which the surface cooling heat exchange modules 32 are arranged on both sides of the condensation heat exchange module 31 can also be adopted. Specifically, as Figure 3 shown, there are two condensation heat exchange modules 31 and two surface cooling heat exchange modules 32 provided in the fin radiator. The two condensation heat exchange modules 31 are in the middle position, and one surface cooling heat exchange module 32 is provided on each of the left and right sides thereof.
[0046] In some embodiments, the opening of each of the first through hole 111 and the second through hole 112 has a flange protruding along the axial direction of the first heat exchange tube 21, and the height of the flange protruding from the plane of each heat dissipation fin 11 is h. Generally speaking, h is between 1mm and 2mm. When each heat dissipation fin 11 is assembled with the first heat exchange tube 21 and the second heat exchange tube 22, due to the existence of the flange, an air flow channel with a width of h is formed between two adjacent heat dissipation fins 11, and there is no need to set a corresponding distance spacer for the air flow channel separately, which simplifies the assembly difficulty of the radiator. The flange can be formed at one time during the process of punching each of the first through hole 111 and the second through hole 112.
[0047] According to the embodiments of the present invention, see Figure 10 As shown, a liquid cooling system is also provided, including a refrigerant cycle and a coolant cycle, wherein the refrigerant in the refrigerant cycle and the coolant in the coolant cycle can both be condensed in the aforementioned fin radiator, and the refrigerant in the refrigerant cycle can perform heat exchange with the coolant in the coolant cycle in the plate heat exchanger 300. Specifically, the refrigerant cycle includes a compressor 100 connected to the refrigerant cycle, the condensation heat exchange module 31, a throttling element 101, and an evaporation heat exchange flow path in the plate heat exchanger 300. The coolant cycle includes a water pump connected to the coolant cycle (not shown or labeled in the figure, which can be arranged in the cooling water cycle of the cooling terminal 202), the surface cooling heat exchange module 32, the coolant heat exchange flow path in the plate heat exchanger 300, and the cooling terminal 202 arranged corresponding to the cooling object. The coolant cycle also includes a bypass pipeline with controllable on and off (for example, by connecting a corresponding electromagnetic on-off valve in series in the bypass pipeline, and the aforementioned electromagnetic on-off valve can be specifically Figure 10 The electromagnetic three-way valve 206 shown in the figure), the bypass pipeline is connected in parallel with the surface cooling and heat exchange module 32.
[0048] In this technical solution, a bypass pipe is connected in parallel with the surface cooling heat exchange module 32, so that the surface cooling heat exchange module 32 can be bypassed and short-circuited when it is not needed. Instead, the coolant after heat exchange with the refrigerant in the plate heat exchanger 300 (the refrigerant is circulating at this time) can be directly used to efficiently cool the heat source (i.e., the cooling object).
[0049] See Figure 10As shown, an oil separator 103 is provided on the exhaust port pipeline of the compressor 100 in the refrigerant cycle to separate the lubricating oil in the exhaust gas of the compressor 100 and then guide it to the suction port of the compressor 100 through the filter 302, the capillary tube 105, and the fourth on-off valve 106 (which can be an electromagnetic two-way valve), and then enter the compressor 100 again to ensure sufficient lubrication of the compressor 100. A gas-liquid separator 104 is connected in series on the suction pipeline of the compressor 100 to separate the liquid refrigerant in the suction air flow and prevent the occurrence of liquid slugging during the suction of the compressor 100. The refrigerant in the refrigerant cycle is also introduced into the IPM heat sink 102 to efficiently cool the IPM module. The condensation fan 301 provided corresponding to the fin radiator is used to drive the air to contact the fin heat exchanger.
[0050] According to an embodiment of the present invention, there is also provided a control method for the foregoing liquid cooling system, including the following steps:
[0051] Obtain the real-time outdoor ambient temperature Tw;
[0052] When Tw is not lower than the preset temperature value Ts, control the compressor 100 to operate, and control the bypass pipeline to be connected and the chilled water heat exchange module 32 to cut off the water inlet, so that the system operates in the refrigerant cycle cooling mode. At this time, the influence of the ambient temperature on the condensation temperature is small, so the condensation heat exchange module 31 is selected instead of the chilled water heat exchange module 32;
[0053] When Tw is lower than the preset temperature value Ts, control the compressor 100 to stop operating, and control the bypass pipeline to be cut off and the chilled water heat exchange module 32 to inlet water, so that the system operates in the secondary refrigerant cycle cooling mode. At this time, the influence of the ambient temperature on the condensation temperature is large, and the chilled water heat exchange module 32 can be selected, which is more energy-saving. In a specific embodiment, the foregoing preset temperature value Ts can be -20°C.
[0054] When there are multiple condensation heat exchange modules 31 and chilled water heat exchange modules 32 in the fin radiator, during the operation of the liquid cooling system in the refrigerant cycle cooling mode, the higher the real-time outdoor ambient temperature Tw, the more the number of condensation heat exchange modules 31 used; during the operation of the liquid cooling system in the secondary refrigerant cycle cooling mode, the lower the real-time outdoor ambient temperature Tw, the fewer the number of chilled water heat exchange modules 32 used.
[0055] Specifically, taking the example that there are two condensation heat exchange modules 31 and two surface cooler heat exchange modules 32 in the fin radiator, when the unit (i.e., the liquid cooling unit, the aforementioned liquid cooling system) detects that the ambient temperature is between -5°C and 55°C, at this time, the ambient temperature has little impact on the condensation temperature. At this time, the liquid cooling unit normally uses two condensation heat exchange modules 31, and all the first on-off valves 521 are in the open state (i.e., the aforementioned connection state); when the unit detects that the ambient temperature is between -20°C and -5°C, at this time, the ambient temperature is relatively low and the condensation temperature will also decrease. At this time, the unit automatically closes the first on-off valve 521 of one of the condensation heat exchange modules 31 and only uses one condensation heat exchange module 31 to increase the condensation temperature and ensure the refrigeration effect of the unit.
[0056] When the unit detects that the ambient temperature is between -30°C and -20°C, at this time, the compressor 100 and the condensation heat exchange module 31 do not work, and the unit uses two surface cooler heat exchange modules 32 for refrigeration, and all the second on-off valves 541 are in the open state; when the ambient temperature is between -40°C and -30°C, at this time, the ambient temperature is extremely low. At this time, the unit is controlled to automatically close the second on-off valve 541 of one of the surface cooler heat exchange modules 32 to control the refrigeration capacity of the unit and prevent equipment damage caused by excessive refrigeration capacity.
[0057] It is easy for those skilled in the art to understand that, on the premise of no conflict, the advantageous technical features of the above-mentioned various methods can be freely combined and superimposed.
[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A fin heat sink, characterized in that: The invention comprises a plurality of heat dissipation fins (11) arranged in parallel and at intervals, an air circulation channel being formed between two adjacent heat dissipation fins (11), each heat dissipation fin (11) being configured with a plurality of first through holes (111) and a plurality of second through holes (112) penetrating two opposite side surfaces thereof, and further comprising a plurality of first heat exchange tubes (21) for circulating refrigerant and a plurality of second heat exchange tubes (22) for circulating coolant, each heat dissipation fin (11) being mounted on each of the first heat exchange tubes (21) through each of the first through holes (111) at corresponding positions to form a condensing heat exchange module (31), and each heat dissipation fin (11) being mounted on each of the second heat exchange tubes (22) through each of the second through holes (112) at corresponding positions to form a surface cooling heat exchange module (32).
2. The fin heat sink according to claim 1, characterized in that: The heat exchange device further comprises an outer frame, wherein the outer frame comprises a first end plate (41) and a second end plate (42) which are arranged in parallel and spaced apart from each other, and the first end plate (41) and the second end plate (42) are respectively provided with a plurality of first through holes (43) which pass through and support the first heat exchange tubes (21) and the second heat exchange tubes (22).
3. The fin heat sink according to claim 2, characterized in that: The outer frame also includes a third end plate (44) and a fourth end plate (45) arranged in parallel and spaced apart from each other, the third end plate (44) being connected to the first ends of the first end plate (41) and the second end plate (42), respectively, and the fourth end plate (45) being connected to the second ends of the third end plate (44) and the fourth end plate (45), respectively, so as to enclose a central mounting area of the outer frame, and each of the heat dissipation fins (11) is located in the central mounting area.
4. The fin heat sink according to claim 3, characterized in that: A middle partition (46) is provided in the central installation area. The middle partition (46) is connected to the center position of the third end plate (44) and the fourth end plate (45), and a plurality of second through holes (47) are constructed on the middle partition (46) for passing through and supporting each of the first heat exchange tubes (21) and the second heat exchange tubes (22).
5. The fin heat sink according to claim 2, characterized in that: Two adjacent first heat exchange tubes (21) are connected to one end corresponding to the first end plate (41) with a first elbow (23) to form a plurality of first U-shaped heat exchange tubes, and two adjacent second heat exchange tubes (22) are connected to the opposite end corresponding to the first end plate (41) with a second elbow (24) to form a plurality of second U-shaped heat exchange tubes.
6. The fin heat sink according to claim 5, characterized in that: Each of the first U-shaped heat exchange tubes has a first refrigerant port and a second refrigerant port at one end corresponding to the second end plate (42), and each of the first refrigerant ports is connected to a liquid collecting pipe (51), and each of the second refrigerant ports is connected to an air distribution pipe (52). Each of the second U-shaped heat exchange tubes has a first coolant port and a second coolant port at one end corresponding to the second end plate (42), and each of the first coolant ports is connected to a water outlet pipe (53), and each of the second coolant ports is connected to a water inlet pipe (54). The air distribution pipe (52) has a first on-off valve (521) capable of controlling its on-off, and the water inlet pipe (54) has a second on-off valve (541) capable of controlling its on-off.
7. The fin heat sink according to claim 1, characterized in that: The openings of each of the first through hole (111) and the second through hole (112) have flanges protruding along the axial direction of the first heat exchange tube (21); and / or, the condensing heat exchange module (31) and the surface cooling heat exchange module (32) both have multiple ones.
8. A liquid cooling system, characterized in that: It comprises a refrigerant cycle and a coolant cycle, wherein the refrigerant in the refrigerant cycle and the coolant in the coolant cycle can both be condensed in the fin heat sink described in any one of claims 1 to 7, and the refrigerant in the refrigerant cycle can perform heat exchange with the coolant in the coolant cycle in a plate heat exchanger (300).
9. The liquid cooling system according to claim 8, characterized in that: The refrigerant cycle comprises a compressor (100) forming a refrigerant cycle connection, the condensation heat exchange module (31), a throttling element (101) and an evaporation heat exchange flow path in the plate heat exchanger (300); the coolant cycle comprises a water pump forming a coolant cycle connection, the surface cooling heat exchange module (32), a coolant heat exchange flow path in the plate heat exchanger (300) and a cooling terminal (202) arranged corresponding to a cooling object; the coolant cycle also comprises a bypass pipeline with controllable on / off, and the bypass pipeline is connected in parallel with the surface cooling heat exchange module (32).