Heat dissipation and cooling device and cooling system

Abstract

The utility model provides a heat dissipation and cooling device and a cooling system. The heat dissipation and cooling device includes a tube group and a fan group. The tube group includes an outlet pipe, a return pipe and a heat exchange grid. The heat exchange grid includes a plurality of phase change tubes arranged adjacent to each other through the side. Each phase change tube includes an outlet end and an inlet end. The outlet pipe is connected to the outlet end, and the return pipe is connected to the inlet end. There are multiple fan groups, and at least two fan groups are arranged on the side of the heat exchange grid along the extension direction of the phase change tube. Among them, at least one fan group includes multiple sub-fans, and the multiple sub-fans are arranged according to the arrangement direction of the phase change tubes of the heat exchange grid. The heat dissipation and cooling device and cooling system of the utility model can fully blow away the heat in the cabinet to obtain better heat dissipation and cooling effect.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a heat dissipation and temperature reduction device and a cooling system. Background Art

[0002] The heat dissipation and cooling of data centers or servers is achieved through the computer room air conditioning system. The computer room air conditioning system includes an air conditioning terminal device. The existing air conditioning terminal device includes a fan and a heat exchange pipeline filled with refrigerant. The fan is used to disturb the air to generate a heat dissipation airflow. The heat dissipation airflow passes through the heat exchange pipeline and becomes a cooling airflow carrying cold energy. The cooling airflow enters the cabinet to reduce the temperature of the server and other heat-generating components and then blows the heat out of the cabinet. The problem with the existing air conditioning terminal device is that the flow range of a single cooling airflow generated by a single fan and the spatial range that can be disturbed when a single fan disturbs the air are both limited, which limits the air volume and blowing range of the cooling airflow; the multiple cooling airflows generated by multiple fans are separated and dispersed from each other, and there are large empty areas in the cabinet that are difficult for the cooling airflow to pass through, resulting in uneven distribution of the cold energy entering the cabinet, and some heat-generating components in the cabinet cannot be cooled by the cooling airflow. Utility Model Content

[0003] In view of this, the utility model provides a heat dissipation and cooling device and a cooling system which can expand the blowing range of cooling airflow and improve the uniformity of the cooling amount entering the cabinet.

[0004] The heat dissipation and cooling device provided by the utility model comprises a tube group and a fan group, the tube group comprises an outlet pipe, a return pipe and a heat exchange grid, the heat exchange grid comprises a plurality of phase change tubes arranged adjacent to each other through the side, each phase change tube comprises an outlet end and an inlet end, the outlet pipe is connected to the outlet end, and the return pipe is connected to the inlet end; the number of fan groups is multiple, and at least two fan groups are arranged on the side of the heat exchange grid along the extension direction of the phase change tube; wherein, at least one fan group comprises a plurality of sub-fans arranged in a fan array, the air outlet radius of the sub-fan is R, along the row direction of the fan array, the air outlet center distance between any two adjacently arranged sub-fans is D1, along the column direction of the fan array, the air outlet center distance between any two adjacently arranged sub-fans is D2, and the relationship among R, D1 and D2 is: 0.20≤R / D1≤0.48, 0.20≤R / D2≤0.48.

[0005] The beneficial effects of the utility model are:

[0006] 1) The heat dissipation and cooling device can generate multiple cooling airflows carrying cold air. The blowing range of the cooling airflow and the space range that can be disturbed when the fan group disturbs the air are larger. Therefore, the heat dissipation and cooling device is suitable for cooling a large range of the internal space of the cabinet;

[0007] 2) At least a portion of the cooling airflow is arranged in an array, that is, at least a portion of the cooling airflow forms a cold air array. Due to the arrangement intervals of the sub-fans in the fan array, the airflow columns in the cold air array are closer to each other, and the cold air carried in the cold air array is more dense and uniform, which can improve the situation where some heat-generating components in the cabinet cannot be cooled by the cooling airflow.

[0008] In one embodiment, the column direction of the fan array is the extension direction of the phase change tubes, and the row direction of the fan array is the arrangement direction of the phase change tubes of the heat exchange grid.

[0009] With this arrangement, the space through which the cold air array flows and blows is closer to the inner structure of the cabinet, so the heat in the cabinet can be more fully blown away, greatly improving the situation where some heat-generating components in the cabinet cannot be cooled by the cooling airflow.

[0010] In one embodiment, a plurality of phase change tubes are arranged along a preset straight line direction, the direction of the fan array is the preset straight line direction, and the fan array and the heat exchange grid are parallel to each other.

[0011] With such an arrangement, the overall structure of the heat dissipation and cooling device is more compact and has a smaller envelope size, which is convenient for transportation and deployment in a computer room, and can save space in the computer room.

[0012] In one embodiment, it also includes a drive controller, which includes a temperature measuring component arranged on the side of the heat exchange grid, and also includes a drive component connected to the fan group. The drive component has a variable output power, and the output power is positively correlated with the temperature measurement result of the temperature measuring component.

[0013] With such an arrangement, the fan group can generate a cooling airflow with variable wind force and wind speed in response to the temperature change of the heat exchange grid. The wind force and wind speed of the cooling airflow increase as the temperature of the heat exchange grid increases, and decrease as the temperature of the heat exchange grid decreases. Therefore, the cooling airflow can compensate for the reduction in cooling capacity through wind force gain and wind speed gain, so that the cooling effect of the cooling airflow remains relatively stable.

[0014] In one embodiment, there are multiple drive controllers, multiple temperature measuring components are communicatively connected to multiple driving components one-to-one, and multiple driving components drive and connect multiple fan groups one-to-one. In the extension direction of the phase change tube, multiple temperature measuring components are staggeredly distributed.

[0015] With such an arrangement, in response to the situation where temperature differences occur in the heat exchange grid in the extension direction of the phase change tube, multiple groups of fan groups can operate with differentiated power, so that the wind force and wind speed of the cooling airflow can be differentiated in the extension direction of the phase change tube. Therefore, the cooling airflow with higher wind force and wind speed can compensate for the lack of cooling capacity through wind force gain and wind speed gain, and the cooling airflow with lower wind force and wind speed can compensate for its own cooling and cooling capacity by carrying more cold capacity. Finally, in the extension direction of the phase change tube, the cooling and cooling capacities of each cooling airflow tend to be consistent, thereby providing a relatively uniform cooling effect to each area in the cabinet, so that the temperature in the cabinet tends to be uniform.

[0016] In some embodiments, the sides of any two adjacent phase change tubes are spaced apart from each other to form a ventilation gap, and each temperature measuring element is located in the ventilation gap between at least two phase change tubes.

[0017] With such an arrangement, the temperature change sensed by the temperature measuring element is closer to the actual temperature change of the heat exchange grid, and the heat dissipation and cooling device is more compact in structure and has a smaller envelope size.

[0018] In one embodiment, the heat exchange grid includes a near-ground end and a far-ground end, the far-ground end includes a plurality of outlets, the near-ground end includes a plurality of inlet ends, the outlet pipe is arranged at the far-ground end, and extends in a direction away from the near-ground end, the return pipe includes a return section parallel to each phase change tube, and the return section extends in a direction away from the near-ground end to a height not lower than the far-ground end.

[0019] With such a configuration, the outlet pipe and the reflux section can be connected to an external cold source higher than the heat exchange grid. After absorbing heat and evaporating in the phase change tube, the refrigerant can smoothly enter the external cold source higher than the heat exchange grid. After entering the external cold source and encountering a cold phase change, the refrigerant can smoothly return to the phase change tube by gravity.

[0020] In one embodiment, the reflux section is parallel to any phase change tube.

[0021] With such an arrangement, the overall structure of the heat dissipation and cooling device is more compact and has a smaller envelope size, which is convenient for transportation and deployment in a computer room, and can save space in the computer room.

[0022] In one embodiment, at least one fan assembly includes a sub-assembly plate, which is layered with the heat exchange grid and includes a plurality of mounting holes for the plurality of sub-fans to be inserted into place one by one.

[0023] With such arrangement, the heat dissipation and cooling device is more convenient to assemble. During assembly, the plurality of sub-fans can be respectively inserted into the sub-assembly board first, and then the sub-assembly board and the pipe group can be assembled.

[0024] In one embodiment, the heat dissipation and cooling device also includes a fuselage, the fuselage includes a first side and a second side, and is provided with a heat exchange cavity for accommodating a heat exchange grid, the heat exchange cavity runs through the first side and the second side, and the sub-packaging plate is detachably arranged on the first side and / or the second side.

[0025] With such an arrangement, after the fan group is started and running, it can directly disturb the air to enter the heat exchange chamber from one of the first side and the second side, then flow through the heat exchange grid, and then flow out of the heat exchange chamber from the other of the first side and the second side, and finally flow into the cabinet to exhaust the heat in the cabinet. When the sub-fan needs to be cleaned, replaced, or maintained, the sub-installation plate can be removed from the fuselage to facilitate subsequent operations.

[0026] In one embodiment, the fan groups are arranged in at least three directions away from the outlet and close to the inlet, and are sequentially a first fan group, a second fan group, and a third fan group, wherein:

[0027] At least the first fan group includes a plurality of sub-fans; and / or,

[0028] The first fan group includes a first sub-fan, the second fan group and the third fan group include a second sub-fan and a third sub-fan respectively, and the size of the first sub-fan is larger than the larger one of the second sub-fan and the third sub-fan.

[0029] With such arrangement, the cooling airflows generated by each of the three fan groups achieve differentiated wind force and wind speed. The first cooling airflow generated by the first fan group is greater in wind force and wind speed than the cooling airflows generated by the second fan group and the third fan group. The first cooling airflow offsets the deficiency of the cold capacity it carries by virtue of the wind force and wind speed gain, so that its cooling and cooling capacity is more balanced and consistent than the cooling airflows generated by the second fan group and the third fan group, which is beneficial to improving the temperature uniformity inside the cabinet.

[0030] In one embodiment, the tube group further includes a first header and a second header respectively disposed at both ends of the heat exchange grid, the first header is connected to the outlet, and the second header is connected to the inlet;

[0031] The first header is provided with an outlet connected to the outlet pipe, the second header is provided with an inlet connected to the return pipe, the heat exchange grid includes a first edge and a second edge arranged opposite to each other, the first edge and the second edge are both located between the first header and the second header, wherein:

[0032] The distance from the outlet to the first edge is greater than the distance from the outlet to the second edge, and the distance from the inlet to the first edge is greater than the distance from the inlet to the second edge; or,

[0033] The distance from the outlet to the first edge is greater than the distance from the outlet to the second edge, and the distance from the inlet to the first edge is less than the distance from the inlet to the second edge.

[0034] With such an arrangement, after the heat dissipation cooling device is placed in the computer room, the outlet pipe and the return pipe are closer to the inner wall of the computer room, thereby avoiding interference with other facilities or devices in the computer room, improving the availability of the remaining space in the computer room and the convenience of arranging facilities and devices. When the distance from the outlet to the first edge is greater than the distance from the outlet to the second edge, and the distance from the inlet to the first edge is less than the distance from the inlet to the second edge, it helps to promote the refrigerant to fully diffuse into more phase change tubes of the heat exchange grid, thereby expanding the flow and distribution range of the refrigerant in the heat exchange grid, allowing the refrigerant in the heat exchange grid to fully exchange heat with the air, thereby increasing the cold carrying capacity of the cooling airflow passing through the heat exchange grid.

[0035] In one embodiment, the heat dissipation and cooling device also includes fins thermally connected to the heat exchange grid, wherein: the fins are provided with a plurality of tube insertion holes for a plurality of phase change tubes to pass through respectively and one by one, and the outer wall of each phase change tube is adapted to the hole wall of the corresponding tube insertion hole.

[0036] In this way, the thermal connection between the fins and the heat exchange grid can not only help expand the heat exchange area between the refrigerant and the ambient air, so that the coldness of the refrigerant can be fully transferred to the space, thereby helping to increase the coldness carried by the cooling airflow, but also the fins can limit the phase change tubes to ensure that the phase change tubes will not interfere with or squeeze each other and affect the heat exchange between the refrigerant and the air.

[0037] In one embodiment, the tube set is configured as two, namely a first tube set and a second tube set, wherein

[0038] The outlet pipe is configured as two, namely a first outlet pipe belonging to the first pipe group and a second outlet pipe belonging to the second pipe group.

[0039] The return pipe is configured as two, namely a first return pipe belonging to the first pipe group and a second return pipe belonging to the second pipe group.

[0040] The heat exchange grid is configured as two, namely a first heat exchange grid belonging to the first tube group and a second heat exchange grid belonging to the second tube group.

[0041] The first export pipe and the first return pipe are connected to a first external cold source, and the second export pipe and the second return pipe are connected to a second external cold source.

[0042] With such an arrangement, the two sets of pipe groups can be connected to the first external cold source and the second external cold source respectively to form two sets of refrigerant circulation loops that backup each other. Only one of the two refrigerant circulation loops can be operated, and of course, the two refrigerant circulation loops can also be operated at the same time.

[0043] The cooling system provided by the utility model comprises a cold source device and a heat dissipation and temperature reduction device. The cold source device comprises an injection part and a discharge part. The injection part is connected to a lead-out pipe, and the discharge part is connected to a return pipe.

[0044] In one embodiment, the cold source device includes a natural cold source and a refrigeration cold source, and the tube groups are configured as two, namely a first tube group and a second tube group.

[0045] The outlet pipe is configured as two, namely a first outlet pipe belonging to the first pipe group and a second outlet pipe belonging to the second pipe group.

[0046] The return pipe is configured as two, namely a first return pipe belonging to the first pipe group and a second return pipe belonging to the second pipe group.

[0047] The heat exchange grid is configured as two, namely a first heat exchange grid belonging to the first tube group and a second heat exchange grid belonging to the second tube group.

[0048] The natural cold source includes a first injection part and a first discharge part respectively connected to the first outlet pipe and the first return pipe, and the refrigeration cold source includes a second injection part and a second discharge part respectively connected to the second outlet pipe and the second return pipe.

[0049] With such a configuration, the refrigerant circulation loop formed by the first tube group and the natural cold source can be used preferentially to realize the phase change and circulating flow of the refrigerant. During the period of time when the outdoor temperature is low, the refrigerant flowing into the natural cold source can be naturally cooled after being cooled by the outdoor low temperature environment, without the need for additional power consumption to cool the refrigerant. When the outdoor temperature rises, the refrigerant circulation loop formed by the second tube group and the refrigeration cold source can be activated, thereby improving the energy consumption economy of the cooling system, which is in line with the concept of energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic structural diagram of a heat dissipation and cooling device according to an embodiment of the utility model at a first viewing angle;

[0051] Figure 2 This is a schematic structural diagram of a heat dissipation and cooling device according to an embodiment of the utility model at a second viewing angle;

[0052] Figure 3 This is a partial structural schematic diagram of a heat dissipation and temperature reduction device according to an embodiment of the utility model;

[0053] Figure 4 It is a partial structural exploded diagram of a heat dissipation and temperature reduction device according to an embodiment of the utility model;

[0054] Figure 5 This is a schematic diagram of the structure of a tube group in a heat dissipation and temperature reduction device according to an embodiment of the utility model;

[0055] Figure 6 for Figure 5 The partial enlarged schematic diagram of the tube group structure at A shown;

[0056] Figure 7 A schematic diagram of a fan array of a heat dissipation and cooling device according to an embodiment of the utility model;

[0057] Figure 8 This is a schematic diagram of a refrigerant circulation flow path of a cooling system according to a first embodiment of the present utility model;

[0058] Fig. 9 This is a schematic diagram of a refrigerant circulation flow path of a cooling system according to a second embodiment of the present utility model;

[0059] Fig.10 This is a schematic diagram of the refrigerant circulation flow path of the cooling system of Example 3 of the utility model.

[0060] Description of reference numerals: 100, heat dissipation and cooling device; 10, tube group; 11, outlet pipe; 12, return pipe; 121, inlet section; 122, return section; 13, heat exchange grid; 131, phase change tube; 1311, outlet; 1312, inlet; 132, first edge; 133, second edge; 134, ventilation gap; 141, first collector; 1411, outlet; 142, second collector; 1421, inlet; 20, fan group; 201, first fan group; 202, second fan group; 203, third fan group; 21, sub Fan; 211, first sub-fan; 212, second sub-fan; 213, third sub-fan; 214, impeller; 215, fan cover; 216, air outlet; 22, sub-assembly plate; 221, mounting hole; 30, fuselage; 31, first side; 32, second side; 33, heat exchange chamber; 34, door panel; 40, fin; 41, insertion hole; 200, cooling system; 50, cold source device; 51, natural cold source; 511, first injection part; 512, first discharge part; 52, refrigeration cold source; 521, second injection part; 522, second discharge part. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0063] The utility model provides a heat dissipation and cooling device 100, and a cooling system 200 including the heat dissipation and cooling device 100 and a cold source device 50. The heat dissipation and cooling device 100 can be placed in a machine room and used to provide heat dissipation and cooling services for a data center, a server, etc., so as to ensure that the data center, the server, etc. can operate stably for a long time.

[0064] See also Figure 1-2 The heat dissipation and cooling device 100 of the utility model includes a tube group 10, and the tube group 10 is filled with a refrigerant, and the refrigerant is used to provide cold to generate low-temperature gas carrying cold. In some embodiments, the heat dissipation and cooling device 100 also includes a fuselage 30, the fuselage 30 includes a first side 31 and a second side 32, and is further provided with a heat exchange cavity 33, the first side 31 and the second side 32 are respectively penetrated by the heat exchange cavity 33, and at least a part of the tube group 10 is arranged in the heat exchange cavity 33. The air outside the fuselage 30 can enter the heat exchange cavity 33 through one of the first side 31 and the second side 32, and then leave the heat exchange cavity 33 from the other of the first side 31 and the second side 32. The part of the tube group 10 located in the heat exchange cavity 33 cools the gas entering the heat exchange cavity 33 through the refrigerant to form a low-temperature gas, and the low-temperature gas is used to cool down the hardware equipment such as the data center and the server in the computer room. Usually, hardware devices are placed in a cabinet, so the heat dissipation and cooling device 100 of the present invention can discharge low-temperature gas to the cabinet through the first side 31 or the second side 32 .

[0065] Specifically, see Figure 5-6 The tube group 10 includes an outlet pipe 11, a return pipe 12 and a heat exchange grid 13. The heat exchange grid 13 is arranged in the heat exchange cavity 33 and is the main structure of the tube group 10 for heat exchange between the heat exchange cavity 33 and the air. The heat exchange grid 13 includes a plurality of phase change tubes 131. These phase change tubes 131 are arranged adjacent to each other through their respective side portions. Any phase change tube 131 includes an outlet end 1311 and an inlet end 1312. These outlet ends 1311 are connected to the outlet ends 1311, and these inlet ends 1312 are connected to the return pipe 12. The cold source device 50 includes an injection portion for receiving a refrigerant and a discharge portion for discharging the refrigerant. The outlet pipe 11 is connected to the injection portion, and the return pipe 12 is connected to the discharge portion.

[0066] When the cooling system 200 is activated and the heat dissipation and cooling device 100 is in operation, the refrigerant in the phase change tube 131 first absorbs the heat of the air entering the heat exchange chamber 33, cooling the air, and then the refrigerant in the phase change tube 131 absorbs heat and vaporizes, thereby flowing into the outlet pipe 11 through the outlet end 1311, and then the vaporized refrigerant enters the cold source device 50 through the injection part, and the cold source device 50 provides coldness to condense the refrigerant, and the refrigerant flows into the return pipe 12 after leaving the cold source device 50 from the discharge part, and finally the condensed liquid refrigerant returns to the phase change tube 131 again through the inlet end 1312. Repeating the above process can realize the repeated phase change of the refrigerant and the circulation of the refrigerant in the cooling system 200.

[0067] See also Figure 3-4 The heat dissipation and cooling device 100 of the utility model further includes a plurality of fan groups 20, at least two of which are arranged on the side of the heat exchange grid 13 along the extension direction of the phase change tube 131, and any one of the fan groups 20 includes one or more sub-fans 21. At least one of the fan groups 20 includes a plurality of sub-fans 21, and in the fan group 20, the plurality of sub-fans 21 are arranged according to the arrangement direction of the phase change tube 131 of the heat exchange grid 13. The fan group 20 is used to disturb the air in the room to generate heat dissipation airflow. When the fan group 20 is running and drives the sub-fans 21 to rotate, the heat dissipation airflow enters the heat exchange cavity 33 from one of the first side 31 and the second side 32, and then is cooled by the phase change tube 131 to be converted into a cooling airflow, and the cooling airflow then leaves the heat exchange cavity 33 from the other of the first side 31 and the second side 32.

[0068] Under some operating conditions, the position of the heat dissipation and cooling device 100 relative to the hardware equipment allows the cooling airflow to blow into the cabinet where the hardware equipment is installed. The cooling airflow can not only cool the hardware equipment and the air in the cabinet, but also blow out the heat in the cabinet, thereby achieving the purpose of cooling the hardware equipment using the cooling system 200; under other operating conditions, the position of the heat dissipation and cooling device 100 relative to the hardware equipment allows the high-temperature gas in the cabinet to be sucked out of the cabinet, and then the air flows through the heat exchange grid 13 under the suction action of the fan group 20 to be cooled, and finally the gas is blown into the computer room by the heat dissipation and cooling device 100, thereby using the cooling system 200 to cool the entire computer room.

[0069] In some embodiments, at least one group of fan groups 20 includes a plurality of sub-fans 21 arranged in a fan array, the minimum number of rows of the fan array is two rows, and the minimum number of columns of the fan array is two columns. Providing multiple groups of fan groups 20 means that the heat dissipation and cooling device 100 can generate multiple cooling airflows carrying cold energy, and at least one group of fan groups 20 includes a plurality of sub-fans 21 arranged in an array, which means that at least a portion of the multiple cooling airflows forms a cold air array, and the cold air array includes a plurality of single cooling airflows, and any sub-fan 21 used to form the fan array generates a single cooling airflow respectively. The minimum number of rows of the formed cold air array is two rows, and the minimum number of columns of the formed cold air array is two columns.

[0070] Optionally, in a fan group 20 composed of multiple sub-fans 21 arranged in a fan array, the column direction of the fan array is the extension direction of the phase change tube 131, and the row direction of the fan array is the arrangement direction of the phase change tube 131; the fan array can be a planar array or a curved array. When the envelope shape of the heat exchange grid 13 is a flat plate, the fan array can be a planar array parallel to the envelope shape of the heat exchange grid 13. When the envelope shape of the heat exchange grid 13 is a curved plate, the fan array can be a curved array.

[0071] Optionally, all the fan groups 20 are arranged on the side of the heat exchange grid 13 along the extension direction of the phase change tube 131. Figure 3-4 Any phase change tube 131 in the heat exchange grid 13 extends in a straight line, and the multiple phase change tubes 131 are parallel to each other. There are three fan groups 20 and the three fan groups 20 are all located on the same side of the heat exchange grid 13. Along the direction away from the outlet 1311 and close to the inlet 1312, the three fan groups 20 are respectively the first fan group 201, the second fan group 202 and the third fan group 203. The first fan group 201 includes multiple first sub-fans 211, the second fan group 202 includes multiple second sub-fans 212, and the third fan group 203 includes multiple third sub-fans 213.

[0072] Furthermore, if Figure 3-4 As shown, a plurality of phase change tubes 131 are arranged along a preset straight line direction to form a flat heat exchange grid 13, the extension direction of the phase change tube 131 is perpendicular to the arrangement direction of the phase change tube 131, a plurality of first sub-fans 211 are arranged as a first fan array, a plurality of second sub-fans 212 are arranged as a second fan array, and a plurality of third sub-fans 213 are arranged as a third fan array. The first fan array, the second fan array, and the third fan array are rectangular arrays parallel to the heat exchange grid 13, wherein the column direction of any fan array is the extension direction of the phase change tube 131, and the row direction of any fan array is the arrangement direction of the phase change tube 131.

[0073] With such an arrangement, the spatial range that can be disturbed by a larger number of sub-fans 21 when disturbing the air is expanded, so that more air can form cooling airflow, thereby increasing the air volume of the cooling airflow; the first fan group 201 promotes the first cold air array, and the first cold air array includes a plurality of array-shaped cooling airflow wind columns. The second fan group 202 and the third fan group 203 also promote the second cold air array and the third cold air array, respectively. The second cold air array and the third cold air array respectively include a plurality of array-shaped cooling airflow wind columns. The three cold air arrays are arranged along the extension direction of the phase change tube 131, and each cold air array includes a plurality of single cooling airflows that are densely and evenly arranged in an array shape, thereby improving the situation in which local areas or certain heating devices in the cabinet are difficult to be cooled by the cooling airflow, thereby bringing more significant cooling and cooling effects to the hardware equipment and the cabinet.

[0074] See also Figure 3-4 , Figure 7 Each sub-fan 21 includes a hollow fan cover 215 and an impeller 214 rotatably installed inside the fan cover 215. The rotating shaft of the impeller 214 is coaxially arranged with the fan cover 215. An air inlet and an air outlet 216 are respectively provided at two axial ends of the fan cover 215. The air inlet end of the impeller 214 is located at one end of the impeller 214 relatively close to the air inlet, and the air outlet end of the impeller 214 is located at the other end of the impeller 214 relatively close to the air outlet 216. The air inlet and the air outlet 216 are coaxially arranged with the rotating shaft of the impeller 214. In some usage scenarios, when the sub-fan 21 is started and running, the impeller 214 rotates and draws air. The air on the side of the heat exchange grid 13 away from the fan group 20 flows through the phase change tube 131 under the suction action of the impeller 214, passes through the heat exchange grid 13, and is then sucked into the fan cover 215. Then the impeller 214 blows the air entering the fan cover 215 out from the air outlet 216.

[0075] Specifically, the air outlet 216 of the sub-fan 21 is a circular opening, the radius of the air outlet 216 is R, and the wind column of the single cooling airflow blown out by each air outlet 216 is approximately a cylindrical wind column. Along the row direction of the fan array, the center distance between any two adjacently arranged air outlets 216 of the sub-fans 21 is D1, and along the column direction of the fan array, the center distance between any two adjacently arranged air outlets 216 of the sub-fans 21 is D2. The center distance of the air outlet 216 is the distance between the centers of the two adjacent air outlets 216. The opening size of the air outlet 216 is approximately equal to the cross-sectional size of the wind column of the single cooling airflow flowing through a sub-fan 21, and R, D1 and D2 satisfy: 0.20≤R / D1≤0.48, 0.20≤R / D2≤0.48.

[0076] In this configuration, the row direction of the fan array is the row direction of the cold air array, the column direction of the fan array is the column direction of the cold air array, the arrangement of the sub-fans 21 in the fan array determines the arrangement of each single cooling airflow in the cold air array, the cross-sectional radius of the wind column of the single cooling airflow is approximately equal to R, and the center of each air outlet 216 is located at the wind column axis of the single cooling airflow blown out of the air outlet 216. Along the row direction of the cold air array, the distance between the wind column axes of any two adjacent single cooling airflows at the moment of blowing out the air outlet 216 is approximately equal to D1, and along the column direction of the cold air array, the distance between the wind column axes of any two adjacent single cooling airflows at the moment of blowing out the air outlet 216 is approximately equal to D2. In this way, the airflow wind columns in the cold air array are closer to each other, and the coldness carried by the cold air array is denser and more uniform, which can significantly improve the situation where local areas or certain heating devices in the cabinet cannot be cooled by the cooling airflow.

[0077] Figure 3-4 , Figure 7 In the illustrated embodiment, the radius R of the air outlet 216 is 95 mm, the fan array is a planar array, the axes of any two sub-fans 21 are parallel to each other, the axis of each sub-fan 21 is coaxially arranged with the rotation axis of the impeller 214 of the sub-fan 21, and is coaxially arranged with the fan cover 215 of the sub-fan 21, so that in the formed cold air array, the wind column axes of any two single cooling air flows are parallel; along the row direction of the fan array, the minimum value of the center distance D1 of the air outlet 216 of any two adjacently arranged sub-fans 21 is 290 mm, and the maximum value is 430 mm, and along the column direction of the fan array, the center distance D2 of the air outlet 216 of any two adjacently arranged sub-fans 21 is 240 mm, and the center distance of the air outlet 216 of each of the two sub-fans 21 is the axial distance between the two sub-fans 21.

[0078] The refrigerant absorbs heat and undergoes phase change in the phase change tube 131. Therefore, for any phase change tube 131, the closer to the outlet 1311 and the outlet pipe 11, the higher the temperature is, and the closer to the inlet 1312 and the return pipe 12, the lower the temperature is. This will lead to the following results: if the same airflow volume passes through the heat exchange grid 13 from different positions, the cooling and cooling capacity of the cooling airflow formed is different. When the position of the airflow passing through the heat exchange grid 13 is shifted in the direction away from the inlet 1312 and close to the outlet 1311, the cooling and cooling capacity of the cooling airflow shows a downward trend. In other words, if three airflows with the same wind speed and air volume pass through the heat exchange grid 13 respectively, the cooling capacity carried by each of the three airflows is different. The specific difference rule is: along the direction away from the inlet 1312 and close to the outlet 1311, the cooling capacity carried by the three airflows decreases.

[0079] In this regard, in some embodiments, the size of each first sub-fan 211 is larger than the size of any second sub-fan 212, and the size of each first sub-fan 211 is larger than the size of any third sub-fan 213, so the airflow column generated when the first sub-fan 211 rotates is larger than the airflow column generated when the second sub-fan 212 rotates, and is also larger than the airflow column generated when the third sub-fan 213 rotates. With such a configuration, the first cooling airflow generated by the first fan group 201 is larger in wind force and wind speed than the cooling airflows generated by the second fan group 202 and the third fan group 203. The first cooling airflow offsets the lack of cold capacity it carries by virtue of the wind force and wind speed gain brought by the larger airflow column, thereby reducing the difference in cooling capacity between the first cooling airflow and other cooling airflows, which will help improve the temperature uniformity in the cabinet.

[0080] See also Figure 2-Figure 3 In some embodiments, the housing 30 further includes a door panel 34 movably disposed on the second side 32, and the fan in the fan group 20 is configured to draw air outside the housing 30 from the first side 31 to the heat exchange cavity 33, and then the air passes through the heat exchange grid 13 and flows out of the heat exchange cavity 33 from the second side 32 to form a cooling airflow. When the cooling system 200 and the heat dissipation and cooling device 100 are used to cool the cabinet, the door panel 34 is first opened, and then the second side 32 is directed toward the hardware equipment and the cabinet, and the cooling airflow flows out of the heat exchange cavity 33 from the second side 32 and then blows toward the hardware equipment; the first side 31 can also be directed toward the hardware equipment and the cabinet, and the fan group 20 draws the hot air flow generated by the hardware equipment from the first side 31 to the heat exchange cavity 33, and then the airflow flows through the heat exchange grid 13 to absorb cold to form a cooling airflow, and the cooling airflow then flows out of the heat exchange cavity 33 from the second side 32 and blows toward the internal space of the computer room, thereby cooling the computer room as a whole.

[0081] Furthermore, in some embodiments, at least one fan group 20 includes a sub-loading plate 22, which is arranged in layers facing each other with the heat exchange grid 13, and a plurality of mounting holes 221 are opened on the sub-loading plate 22, and the plurality of sub-fans 21 in the fan group 20 are respectively inserted into the mounting holes 221 one by one. Figure 4 In the heat dissipation and cooling device 100 shown, the first fan group 201, the second fan group 202 and the third fan group 203 respectively include a first sub-loading plate 22, a second sub-loading plate 22 and a third sub-loading plate 22. The sub-loading plates 22 can be detachably installed on the second side 32 of the fuselage 30, and of course can also be detachably installed on the first side 31. A plurality of first sub-fans 211 are respectively and one-to-one inserted into a plurality of mounting holes 221 on the first sub-loading plate 22, a plurality of second sub-fans 212 are respectively and one-to-one inserted into a plurality of mounting holes 221 on the second sub-loading plate 22, and a plurality of third sub-fans 213 are respectively and one-to-one inserted into a plurality of mounting holes 221 on the third sub-loading plate 22.

[0082] On the one hand, the mounting hole 221 is used to adapt the fan cover 215 of the sub-fan 21 so that the fan cover 215 of the sub-fan 21 is fixedly connected to the sub-installation plate 22. On the other hand, when the impeller 214 of the sub-fan 21 rotates, it can drive the airflow column to pass through the sub-fan 21, that is, the airflow column will enter the air inlet, then pass through the mounting hole 221 and the fan cover 215, and then blow out from the air outlet 216. The sub-installation plate 22 and the fuselage 30 are detachably connected, so that the sub-fan 21 and the sub-installation plate 22 can be removed from the fuselage 30 as a whole, and then the sub-fan 21 can be cleaned, maintained, replaced or repaired, etc., which improves the maintenance convenience of the heat dissipation and cooling device 100 and the replaceability of the fan group 20. Optionally, the sub-fan 21 can be detachably inserted into the mounting hole 221, thereby facilitating the direct removal of the damaged and failed sub-fan 21 from the sub-installation plate 22 and replacing or repairing it.

[0083] In some embodiments, the heat dissipation and cooling device 100 further includes a driving controller, which includes a temperature measuring component disposed on the side of the heat exchange grid 13, and also includes a driving component that drives and connects to the fan group 20. The temperature measuring component and the driving component are communicatively connected, the temperature measuring component is used to sense the temperature of the side area of ​​the heat exchange grid 13, and the driving component is used to drive the sub-fan 21 in the fan group 20 to drive air to generate an air flow column. Specifically, the driving component has a variable output power, and the driving component can adjust the output power according to the temperature measurement result of the temperature measuring component, and the change rule of the output power is: the output power is positively correlated with the temperature measurement result of the temperature measuring component.

[0084] When the temperatures of the side area of ​​the heat exchange grid 13 measured by the temperature measuring component twice are T1 and T2 respectively, the power measured at the moment of T1 is P1, and the power measured at the moment of T2 is P2. If T1>T2, then P1>P2. If the temperature of the side area of ​​the heat exchange grid 13 measured by the temperature measuring component rises, it indicates that the ability of the heat exchange grid 13 to cool the air is reduced, and the amount of cold that can be absorbed by the airflow passing through the heat exchange grid 13 is reduced. Then, the output power of the driving component is increased at this time, so that the airflow column formed when the sub-fan 21 is running obtains wind force and wind speed gain. Such a setting can make the cooling airflow offset the reduction in cold through its own wind force and wind speed gain, and finally maintain the cooling and cooling capacity of the cooling airflow basically stable, avoid the cooling and cooling capacity of the cooling airflow fluctuating with the temperature fluctuation of the heat exchange grid 13, which is conducive to improving the heat dissipation and cooling effect.

[0085] Furthermore, in some embodiments, the number of drive controllers is multiple and the number of drive controllers is equal to the number of fan groups 20, and the multiple temperature measuring components are respectively communicated and connected with the multiple driving components one by one, that is, the temperature measuring component in each drive controller is communicated and connected with the driving component, and the multiple driving components are respectively driven and connected with the multiple fan groups 20 one by one, and each driving component controls the operation of the multiple sub-fans 21 in a fan group 20. In the extension direction of the phase change tube 131, the multiple temperature measuring components are arranged in a staggered manner so as to Figure 1 to Figure 4 Taking the heat dissipation and cooling device shown as an example, when the heat dissipation and cooling device is operating normally, the phase change tube 131 extends in the vertical direction, and multiple temperature measuring components are at different height positions in the vertical direction. Multiple temperature measuring components can be arranged in a vertical line queue along the vertical direction, or in a broken line queue, or in an oblique line queue that is inclined relative to both the horizontal and vertical directions.

[0086] by Figure 3-4 Taking the heat dissipation and cooling device 100 shown as an example, there are three drive controllers, and three temperature measuring components are arranged in sequence along the extension direction of the phase change tube 131. Usually, the phase change can be divided into the superheating zone, the two-phase zone and the supercooling zone in sequence according to the state of the refrigerant. The superheating zone is a section including or close to the outlet 1311, the supercooling zone is a section including or close to the inlet 1312, and the two-phase zone is located between the supercooling zone and the superheating zone. Among the above three zones, the superheating zone has the highest demand for the wind force and wind speed intensity of the airflow passing through the superheating zone. The three temperature measuring components can be used to sense the temperature of the side of the superheating zone, the side of the two-phase zone and the side of the supercooling zone respectively; the first cooling airflow generated by the first fan group 201 flows through the hot zone, the second cooling airflow generated by the second fan group 202 flows through the two-phase zone, and the third cooling airflow generated by the third fan group 203 passes through the supercooling zone.

[0087] It is worth noting that, if the multiple sub-fans 21 in at least one fan group 20 are arranged as a fan array, the first sub-fans 211 in the first fan group 201 are preferentially arranged as the first fan array.

[0088] With such an arrangement, the cooling airflows generated by each of the three fan groups 20 can achieve adjustable wind force and wind speed. In response to the situation where temperature differences occur in the heat exchange tubes in the extension direction of the phase change tube 131 (for example, the temperature in the overheating zone > the temperature in the two-phase zone > the temperature in the supercooling zone), multiple fan groups 20 can operate with differentiated powers, and the wind force / wind speed of the first cooling airflow, the second cooling airflow and the third cooling airflow are differentiated in the extension direction of the phase change tube 131. The cooling airflow with higher wind force and wind speed can compensate for the lack of cooling capacity through wind force and wind speed gain, while the cooling airflow with lower wind force and wind speed can balance its own cooling and cooling capacity by carrying more cooling capacity, ultimately achieving a balance in the cooling and cooling capacity of each cooling airflow in the extension direction of the phase change tube 131, thereby providing uniform cooling effect to each area in the cabinet.

[0089] See also Figure 6 The sides of any two adjacent phase change tubes are spaced apart from each other to form a ventilation gap 134 for gas to pass through, and any temperature measuring element is located in the ventilation gap 134 between at least two phase change tubes 131. In this way, the temperature change sensed by the temperature measuring element is more consistent with the actual temperature change of the heat exchange grid 13, and the heat dissipation and cooling device 100 is more compact and has a smaller envelope size.

[0090] See also Figure 4 , see also Figure 5-6 In some embodiments, the heat dissipation and cooling device 100 further includes a fin 40 connected to the heat exchange grid 13 by heat conduction. The whole formed by the connection between the fin 40 and the heat exchange grid 13 has a larger surface area than the heat exchange grid 13, that is, the fin 40 and the heat exchange grid 13 can form a larger surface area for heat exchange with the air in the heat exchange cavity 33, thereby accelerating the cooling of the gas. Specifically, the fin 40 is provided with a plurality of insertion holes 41, and the plurality of phase change tubes 131 pass through the plurality of insertion holes 41 in a one-to-one correspondence, and the outer wall of each phase change tube 131 is adapted to the hole wall of the insertion hole 41 through which the phase change tube 131 passes. In this way, not only the heat conduction connection between the fin 40 and the heat exchange grid 13 is realized, but also the fin 40 can limit and fix the phase change tube 131, which is conducive to maintaining the stability of the shape structure of the heat exchange grid 13 and avoiding deformation of the phase change tube 131 and interference or contact between the phase change tubes 131.

[0091] In some embodiments, the position of the heat exchange grid 13 is configured such that the height of the outlet end 1311 of any phase change tube 131 in the vertical direction is higher than the height of the inlet end 1312 of the phase change tube 131 in the vertical direction; the position of the cold source device 50 is configured such that the cold source device 50 is at least higher than the heat exchange grid 13 of the heat dissipation and cooling device 100 in the vertical direction. Such a configuration can ensure that the refrigerant in the phase change tube 131 can smoothly float to the outlet end 1311 and flow into the outlet pipe 11 after absorbing heat and evaporating, so that the gaseous refrigerant can smoothly flow into the injection part of the cold source device 50 through the outlet pipe 11. The outlet pipe 11 can be directly connected to the cold source device 50 to connect to the injection part, or a drainage pipeline can be set between the cold source device 50 and the outlet pipe 11, and the outlet pipe 11 is indirectly connected to the injection part through the drainage pipeline.

[0092] Further, see Figure 4-5 The heat exchange grid 13 includes a near-ground end and a far-ground end. When the heat dissipation and cooling device 100 is used to cool the hardware equipment and the cabinet, the extension direction of the phase change tube 131 is a vertical direction, that is, the extension direction of the phase change tube 131 is perpendicular to the horizontal ground. The near-ground end is one end of the heat exchange grid 13 that is relatively close to the ground, and the far-ground end is the other end of the heat exchange grid 13 that is relatively far from the ground. The inlet 1312 of the phase change tube 131 is located at one end of the phase change tube 131 that is relatively close to the ground, so the near-ground end is composed of multiple inlet ends 1312, and the outlet 1311 of the phase change tube 131 is located at the other end of the phase change tube 131 that is relatively far from the ground, so the far-ground end is composed of multiple outlet ends 1311.

[0093] Furthermore, the tube group 10 further includes a first header 141 and a second header 142 respectively disposed at both ends of the heat exchange grid 13. The first header 141 is disposed at the far end of the heat exchange grid 13 and is connected to the outlet ends 1311 of the plurality of phase change tubes 131. The second header 142 is disposed at the near end of the heat exchange grid 13 and is connected to the inlet ends 1312 of the plurality of phase change tubes 131. The first header 141 is provided with an outlet 1411, and the outlet pipe 11 is connected to the first header 141. A collecting pipe 141 is connected to the outlet 1411, and a second collecting pipe 142 is provided with an inlet 1421. The return pipe 12 is connected to the second collecting pipe 142 and connected to the inlet 1421. Thus, the outlet end 1311 of the phase change tube 131 is indirectly connected to the outlet pipe 11 through the outlet 1411 of the first collecting pipe 141, and the inlet end 1312 of the phase change tube 131 is indirectly connected to the return pipe 12 through the inlet 1421 of the second collecting pipe 142.

[0094] See also Figure 4-5, the outlet pipe 11 extends in a direction away from the near-ground end so as to connect to the injection part and thus connect to the cold source device 50, the return pipe 12 includes an inlet section 121 and a return section 122, the inlet section 121 is connected to the second header 142 and connected to the inlet 1421 so as to be indirectly connected to the multiple inlet ends 1312, and the return section 122 extends in a direction away from the near-ground end to a height not lower than the far-ground end so that the return section 122 connects to the discharge part and thus connects to the cold source device 50. Optionally, when the heat dissipation and cooling device 100 is used to cool down the hardware equipment and the cabinet, the return section 122 extends in a vertical direction and the return section 122 is parallel to any one of the phase change tubes 131. With such an arrangement, the refrigerant can flow back along the return section 122 by its own gravity after being cooled and liquefied in the cold source device 50.

[0095] Further, see Figure 4-5 In some embodiments, the distances from the two ends of the first manifold 141 to the outlet 1411 are not equal; in some other embodiments, the distances from the two ends of the second manifold 142 to the inlet 1421 are not equal. Figure 5 As shown, the heat exchange grid 13 includes a first edge 132 and a second edge 133 arranged back to back, the first edge 132 and the second edge 133 are respectively the side parts of the two phase change tubes 131, the first edge 132 and the second edge 133 are both located between the first collecting tube 141 and the second collecting tube 142, the distance from the outlet 1411 to the first edge 132 is greater than the distance from the outlet 1411 to the second edge 133, and the distance from the inlet 1421 to the first edge 132 is greater than the distance from the inlet 1421 to the second edge 133.

[0096] by Figure 3 Taking the heat dissipation and cooling device 100 as an example, if the heat dissipation and cooling device 100 is observed facing the second side 32, the distance from the outlet 1411 of the first header 141 to the left end of the first header 141 is smaller than the distance from the outlet 1411 to the right end of the first header 141, the distance from the inlet 1421 of the second header 142 to the left end of the second header 142 is smaller than the distance from the inlet 1421 to the right end of the second header 142, the outlet pipe 11 is connected to the left end of the first header 141, and the return pipe 12 is connected to the left end of the second header 142. The return section 122 of the return pipe 12 and the outlet pipe 11 both extend from the top of the fuselage 30.

[0097] With such arrangement, the positions of the outlet pipe 11 and the return pipe 12 in the machine room are closer to the inner wall of the machine room, which facilitates the arrangement of other devices in the machine room.

[0098] Optionally, in other embodiments, if the heat dissipation and cooling device 100 is observed facing the second side 32, the distance from the outlet 1411 of the first manifold 141 to the left end of the first manifold 141 is smaller than the distance from the outlet 1411 to the right end of the first manifold 141, the distance from the inlet 1421 of the second manifold 142 to the left end of the second manifold 142 is larger than the distance from the inlet 1421 to the right end of the second manifold 142, the outlet pipe 11 is connected to the left end of the first manifold 141, and the return pipe 12 is connected to the right end of the second manifold 142. The return section 122 of the return pipe 12 and the outlet pipe 11 both extend from the top of the fuselage 30. For example, at Figure 5 Based on the tube set 10 shown, the positions of the outlet 1411 and the inlet 1421 can also be adjusted as follows: the distance from the outlet 1411 to the first edge 132 is greater than the distance from the outlet 1411 to the second edge 133, and the distance from the inlet 1421 to the first edge 132 is less than the distance from the inlet 1421 to the second edge 133.

[0099] Such an arrangement can not only make the positions of the outlet pipe 11 and the return pipe 12 in the machine room closer to the inner wall of the machine room, but also help to promote the refrigerant to fully diffuse into each phase change tube 131 of the heat exchange grid 13, expand the flow distribution range of the refrigerant in the heat exchange grid 13, and make the refrigerant in the heat exchange grid 13 and the air fully exchange heat, thereby increasing the cold carrying capacity of the cooling airflow passing through the heat exchange grid 13.

[0100] See also Figure 8 to Figure 10 In some embodiments, the cold source device 50 includes a natural cold source 51 and a refrigeration cold source 52, the tube group 10 is configured as two, namely the first tube group 10 and the second tube group 10, the outlet pipe 11 is configured as two, respectively belonging to the first tube group 10 and the second outlet pipe 11 belonging to the second tube group 10, the return pipe 12 is configured as two, respectively belonging to the first tube group 10 The return pipe 12 is configured as two, respectively belonging to the first tube group 10 and the second return pipe 12 belonging to the second tube group 10, and the heat exchange grid 13 is configured as two, respectively belonging to the first tube group 10. The heat exchange grid 13 and the second heat exchange grid 13 belonging to the second tube group 10, the first heat exchange grid 13 includes a plurality of first phase change tubes 131 connecting the first outlet tube 11 and the first return tube 12, the second heat exchange grid 13 includes a plurality of second phase change tubes 131 connecting the second outlet tube 11 and the second return tube 12, the natural cold source 51 includes a first injection portion 511 and a first discharge portion 512 respectively connecting the first outlet tube 11 and the first return tube 12, and the refrigeration cold source 52 includes a second injection portion 521 and a second discharge portion 522 respectively connecting the second outlet tube 11 and the second return tube 12. The first tube group 10 and the natural cold source 51 form a first refrigerant circulation loop, and the second tube group 10 and the refrigeration cold source 52 form a second refrigerant circulation loop, and the two refrigerant circulation loops can operate independently.

[0101] The natural cooling source 51 is placed outdoors, and the location of the refrigeration cooling source 52 is not limited. When it is winter when the outdoor temperature is low, the first refrigerant circulation loop can be activated alone and the second refrigerant circulation loop can be closed. The refrigerant in the first refrigerant circulation loop changes from liquid to gaseous state by absorbing heat in the first heat exchange grid 13, and the gaseous refrigerant flows into the natural cold source 51 along the first outlet pipe 11, and then the gaseous refrigerant in the natural cold source 51 is cooled by the outdoor low temperature. After the refrigerant is condensed into liquid, it returns to the first heat exchange grid 13 along the first return pipe 12; when it is spring and autumn and the outdoor temperature rises, the first refrigerant circulation loop and the second refrigerant circulation loop can be activated at the same time. The refrigerant in the second refrigerant circulation loop changes from liquid to gaseous state by absorbing heat in the second heat exchange grid 13, and the gaseous refrigerant flows into the refrigeration cold source 52 along the second outlet pipe 11. The refrigeration cold source 52 actively refrigerates to cool the refrigerant. After the refrigerant is condensed into liquid, it returns to the second heat exchange grid 13 along the second return pipe 12; when it is summer and the outdoor temperature rises further, the second refrigerant circulation loop can be closed and only the second refrigerant circulation loop can be activated.

[0102] Optionally, the natural cooling source 51 may include a heat pipe condenser and a condensing fan located in the outdoor environment, and the heat pipe condenser includes a first injection part 511 and a first discharge part 512 for accommodating refrigerant and allowing the refrigerant in the first refrigerant circulation loop to undergo condensation phase change internally.

[0103] It can be seen that for the first refrigerant circulation loop, the cooling and condensation of the gaseous refrigerant in the natural cold source 51 is achieved by the low temperature of the environment, and the refrigerant does not consume energy when changing from a gaseous phase to a liquid phase. Therefore, for the cooling system 200 that is compatible with the first tube group 10 and the second tube group 10, and is compatible with the natural cold source 51 and the refrigeration cold source 52, the first refrigerant circulation loop is usually activated first, and the second refrigerant circulation loop is only activated separately when the outdoor ambient temperature is not high enough to cool the refrigerant. This can improve the energy economy of the cooling system 200.

[0104] It can be understood that, in other embodiments, the natural cold source 51 can also be replaced by other forms of first external cold sources, and the refrigeration cold source 52 can also be replaced by other forms of second external cold sources.

[0105] Figure 8 In the cooling system 200 shown, the cooling source 52 is a water-cooled plate heat exchanger, including a water inlet for receiving chilled water and a water outlet for discharging chilled water. The gaseous refrigerant entering the cooling source 52 is cooled by the chilled water, and the chilled water is discharged from the water outlet after cooling the refrigerant. Fig. 9In the cooling system 200 shown, the refrigeration cold source 52 is an air conditioning unit based on a refrigeration cycle, including a plate heat exchanger, and the plate heat exchanger has two unconnected refrigerant spaces inside, one of which is used to receive the refrigerant of the second refrigerant circulation loop, and the other is used to receive the refrigeration coolant, which is used to cool the refrigerant entering the plate heat exchanger to promote condensation phase change; Fig.10 In the cooling system 200 shown, the refrigeration cold source 52 is a magnetically suspended compressor direct-driven refrigeration unit.

[0106] Optionally, the first refrigerant circulation loop can be configured to connect multiple first tube groups 10 in parallel, and the second refrigerant circulation loop can be configured to connect multiple second tube groups 10 in parallel, the number of the multiple first tube groups 10 is equal to the number of the multiple second tube groups 10, each first tube group 10 is uniquely paired with one second tube group 10, and the paired first tube groups 10 and second tube groups 10 are used to provide cooling airflow for a hardware equipment cabinet. Figure 8 to Figure 10 In the cooling system 200 shown, four first tube groups 10 are connected in parallel in the first refrigerant circulation loop, and four second tube groups 10 are connected in parallel in the second refrigerant circulation loop. The cooling system 200 can provide cooling for four hardware equipment cabinets.

[0107] The heat dissipation and cooling device 100 and the cooling system 200 of the utility model can generate multiple dense and uniform cooling airflows. The wind columns of these cooling airflows are not only arranged along the extension direction of the phase change tube 131, but also a part of the wind columns of the cooling airflow are arranged along the arrangement direction of the phase change tube 131 of the heat exchange grid 13. The space range through which the multiple wind columns flow is further expanded compared to the wind columns generated by the existing air-conditioning terminal device, and a larger range of space can be cooled to bring more significant heat dissipation effect.

[0108] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A heat dissipation and cooling device, characterized in that: It comprises a tube group (10) and a fan group (20), The tube group (10) comprises an outlet tube (11), a return tube (12) and a heat exchange grid (13); the heat exchange grid (13) comprises a plurality of phase change tubes (131) arranged adjacent to each other through the side; each phase change tube (131) comprises an outlet end (1311) and an inlet end (1312); the outlet tube (11) is connected to the outlet end (1311), and the return tube (12) is connected to the inlet end (1312); The number of the fan groups (20) is plural, and at least two of the fan groups (20) are arranged on the side of the heat exchange grid (13) along the extension direction of the phase change tube (131); Wherein, at least one of the fan groups (20) comprises a plurality of sub-fans (21) arranged in a fan array, and the radius of the air outlet (216) of the sub-fan (21) is R, Along the row direction of the fan array, the center distance between the air outlets (216) of any two adjacently arranged sub-fans (21) is D1; Along the column direction of the fan array, the center distance between the air outlets (216) of any two adjacently arranged sub-fans (21) is D2; The relationship between R, D1 and D2 is: 0.20≤R / D1≤0.48, 0.20≤R / D2≤0.

48.

2. The heat dissipation and temperature cooling device according to claim 1, characterized in that: The column direction of the fan array is the extension direction of the phase change tubes (131), and the row direction of the fan array is the arrangement direction of the phase change tubes (131) of the heat exchange grid (13).

3. The heat dissipation and temperature cooling device according to claim 2, characterized in that: The plurality of phase change tubes (131) are arranged along a preset straight line direction, and the row direction of the fan array is the preset straight line direction.

4. The heat dissipation and temperature cooling device according to claim 1, characterized in that: It also includes a drive controller, which includes a temperature measuring component arranged on the side of the heat exchange grid (13), and also includes a drive component connected to the fan group (20), the drive component has a variable output power, and the output power is positively correlated with the temperature measurement result of the temperature measuring component.

5. The heat dissipation and temperature cooling device according to claim 4, characterized in that: There are multiple drive controllers, and the multiple temperature measuring components are communicatively connected to the multiple driving components one-to-one. The multiple driving components are drive-connected to the multiple fan groups (20) one-to-one. In the extension direction of the phase change tube (131), the multiple temperature measuring components are distributed in a staggered manner.

6. The heat dissipation and temperature cooling device according to claim 4, characterized in that: The sides of any two adjacent phase change tubes (131) are spaced apart from each other to form a ventilation gap (134), and each of the temperature measuring components is located in the ventilation gap (134) between at least two of the phase change tubes (131).

7. The heat dissipation and temperature cooling device according to claim 1, characterized in that: The heat exchange grid (13) comprises a near-ground end and a far-ground end, the far-ground end comprises a plurality of outlet ends (1311), the near-ground end comprises a plurality of inlet ends (1312), the outlet pipe (11) is arranged at the far-ground end and extends in a direction away from the near-ground end, the return pipe (12) comprises a return section (122) parallel to each phase change tube (131), and the return section (122) extends in a direction away from the near-ground end to a height not lower than the far-ground end.

8. The heat dissipation and temperature cooling device according to claim 1, characterized in that: At least one of the fan groups (20) comprises a sub-assembly plate (22), the sub-assembly plate (22) and the heat exchange grid (13) are arranged in layers, and comprise a plurality of mounting holes (221) for the plurality of sub-fans (21) to be respectively inserted into place in a one-to-one correspondence.

9. The heat dissipation and temperature cooling device according to claim 8, characterized in that: The heat dissipation and cooling device also includes a body (30), the body (30) includes a first side (31) and a second side (32), and is provided with a heat exchange cavity (33) for accommodating the heat exchange grid (13), the heat exchange cavity (33) passes through the first side (31) and the second side (32), and the sub-packaging plate (22) is detachably arranged on the first side (31) and / or the second side (32).

10. The heat dissipation and temperature cooling device according to any one of claims 1 to 9, characterized in that: The fan groups (20) are configured into at least three in a direction away from the outlet (1311) and close to the inlet (1312), and are sequentially a first fan group (201), a second fan group (202) and a third fan group (203), wherein: At least the first fan group (201) includes a plurality of sub-fans (21); and / or, The first fan group (201) comprises a first sub-fan (211), the second fan group (202) and the third fan group (203) respectively comprise a second sub-fan (212) and a third sub-fan (213), and the size of the first sub-fan (211) is larger than the larger one of the second sub-fan (212) and the third sub-fan (213).

11. The heat dissipation and temperature cooling device according to any one of claims 1 to 9, characterized in that: The tube group (10) further comprises a first header (141) and a second header (142) respectively arranged at two ends of the heat exchange grid (13), the first header (141) being connected to the outlet (1311), and the second header (142) being connected to the inlet (1312); The first collecting pipe (141) is provided with an outlet (1411) connected to the outlet pipe (11), the second collecting pipe (142) is provided with an inlet (1421) connected to the return pipe (12), the heat exchange grid (13) comprises a first edge (132) and a second edge (133) arranged opposite to each other, the first edge (132) and the second edge (133) are both located between the first collecting pipe (141) and the second collecting pipe (142), wherein: The distance from the outlet (1411) to the first edge (132) is greater than the distance from the outlet (1411) to the second edge (133), and the distance from the inlet (1421) to the first edge (132) is greater than the distance from the inlet (1421) to the second edge (133); or, The distance from the outlet (1411) to the first edge (132) is greater than the distance from the outlet (1411) to the second edge (133), and the distance from the inlet (1421) to the first edge (132) is less than the distance from the inlet (1421) to the second edge (133).

12. The heat dissipation and temperature cooling device according to any one of claims 1 to 9, characterized in that: The heat dissipation and temperature reduction device further comprises fins (40) thermally connected to the heat exchange grid (13), wherein: The fin (40) is provided with a plurality of tube insertion holes (41) for the plurality of phase change tubes (131) to pass through in a one-to-one correspondence, and the outer wall of each phase change tube (131) is adapted to the hole wall of the corresponding tube insertion hole (41).

13. The heat dissipation and temperature cooling device according to any one of claims 1 to 9, characterized in that: The tube group (10) is configured into two, namely a first tube group (10) and a second tube group (10), wherein The outlet pipe (11) is configured as two, namely a first outlet pipe (11) belonging to the first pipe group (10) and a second outlet pipe (11) belonging to the second pipe group (10). The return pipe (12) is configured as two, namely a first return pipe (12) belonging to the first pipe group (10) and a second return pipe (12) belonging to the second pipe group (10). The heat exchange grid (13) is configured in two, namely a first heat exchange grid (13) belonging to the first tube group (10) and a second heat exchange grid (13) belonging to the second tube group (10). The first outlet pipe (11) and the first return pipe (12) are connected to a first external cold source, and the second outlet pipe (11) and the second return pipe (12) are connected to a second external cold source.

14. A cooling system, characterized in that: It comprises a cold source device (50) and the heat dissipation and cooling device according to any one of claims 1 to 13, wherein the cold source device (50) comprises an injection part and a discharge part, the injection part is connected to the outlet pipe (11), and the discharge part is connected to the return pipe (12).

15. The cooling system according to claim 14, characterized in that The cold source device (50) comprises a natural cold source (51) and a refrigeration cold source (52). The tube group (10) is configured into two, namely a first tube group (10) and a second tube group (10). The outlet pipe (11) is configured as two, namely a first outlet pipe (11) belonging to the first pipe group (10) and a second outlet pipe (11) belonging to the second pipe group (10). The return pipe (12) is configured as two, namely a first return pipe (12) belonging to the first pipe group (10) and a second return pipe (12) belonging to the second pipe group (10). The heat exchange grid (13) is configured as two, namely a first heat exchange grid (13) belonging to the first tube group (10) and a second heat exchange grid (13) belonging to the second tube group (10). The natural cooling source (51) comprises a first injection portion (511) and a first discharge portion (512) respectively connected to the first outlet pipe (11) and the first return pipe (12). The refrigeration cold source (52) comprises a second injection portion (521) and a second discharge portion (522) respectively connected to the second outlet pipe (11) and the second return pipe (12).

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