Heat exchanger and heat exchange device

Abstract

The present application relates to the technical field of heat exchange, and provides a heat exchanger and a heat exchange device, for use in solving the problem of low heat exchange efficiency of heat exchangers. The heat exchanger provided in the present application comprises a first surface and a second surface facing away from each other in a first direction; a first port of an air duct in the heat exchanger is located on the first surface, and a second port of the air duct is located on the second surface; a tube group in the heat exchanger is located between the first surface and the second surface, the tube group comprises a plurality of straight tubes arranged in parallel, each straight tube extends in a second direction, and the second direction is perpendicular to the first direction; the projection area of the tube group in the first direction is greater than or equal to the projection area of the tube group in a third direction, wherein the third direction is perpendicular to the second direction and forms an included angle with the first direction. In the heat exchanger provided in the present application, more straight tubes can be arranged in the tube group, and the tube group exhibits good heat exchange efficiency with air flowing through the air duct, thereby improving the overall heat exchange efficiency of the heat exchanger.

Description

Heat exchanger and heat exchange device

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202411332948.7, filed on September 23, 2024, and entitled "A heat exchanger and heat exchange device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of heat exchange, in particular to a heat exchanger and heat exchange device. BACKGROUND

[0004] A data center usually includes a machine room and electronic devices such as communication devices, storage devices, and power supply devices located in the machine room. In actual application, some electronic devices generate a large amount of heat during operation. In order to keep the electronic devices within a normal temperature range, a heat exchanger is usually used to dissipate heat from the electronic devices in the machine room.

[0005] In a current heat exchanger, a plurality of fins are spaced and stacked, and a pipe is arranged through the fins. Adjacent two fins form an air passage for air flow. The pipe has a channel for fluid medium such as water to flow through. The pipe passes through the fins, and when the air flows through the air passage, the cold energy in the fins and the pipe can be taken away by the air to cool the air. The cooled air is discharged into the machine room to cool the electronic devices in the machine room.

[0006] In the current heat exchanger, the pipe is arranged in an unreasonable manner, resulting in low heat exchange efficiency. Therefore, how to improve the heat exchange efficiency of the heat exchanger has become a technical problem to be solved. SUMMARY

[0007] The present application provides a heat exchanger and heat exchange device with high heat exchange efficiency.

[0008] In a first aspect, the present application provides a heat exchanger, which comprises a first surface and a second surface, the first surface and the second surface being arranged to face away from each other along a first direction. The heat exchanger has an air duct, which comprises a first port and a second port, the first port being located at the first surface, and the second port being located at the second surface, i.e. the air duct penetrates through the first surface and the second surface. The heat exchanger further comprises a tube group, which is located between the first surface and the second surface. The tube group comprises a plurality of straight tubes arranged in parallel, the end portions of the plurality of straight tubes being sequentially connected, so that a fluid medium in the tube group can sequentially flow through each straight tube in the tube group. Each straight tube penetrates through the air duct and extends along a second direction, the second direction being perpendicular to the first direction. The projection area of the tube group along the first direction is greater than or equal to the projection area of the tube group along a third direction. The third direction is perpendicular to the second direction and forms an angle with the first direction.

[0009] In the heat exchanger provided by the present application, when the external air enters the air duct through the first port (or the second port) and is discharged from the second port (or the first port), the air can exchange heat with the fluid medium flowing in the straight tubes, so that the heat exchanger can cool or heat the air. In addition, the projection area of the tube group along the first direction is greater than or equal to the projection area of the tube group along the third direction, so that more straight tubes can be arranged along the third direction, which helps to increase the number of straight tubes arranged in the tube group. Alternatively, it can be understood that along the first direction, the distance between the first surface and the second surface will obviously restrict the number of straight tubes arranged in the tube group. When the straight tubes in the tube group are arranged along the third direction which forms an angle with the first direction, the restriction of the distance between the first surface and the second surface on the number of straight tubes arranged can be effectively avoided, thereby facilitating the increase of the number of straight tubes arranged in the tube group, so as to increase the heat exchange efficiency of the heat exchanger.

[0010] In an example, the extension direction of the air duct is parallel to the third direction, so as to increase the flow path of the air duct, thereby increasing the heat exchange efficiency of the heat exchanger. Alternatively, it can be understood that when the extension direction of the air duct is parallel to the first direction, the length of the air duct is substantially the same as the distance between the first surface and the second surface. When the extension direction of the air duct is parallel to the third direction, the length of the air duct can be increased, thereby increasing the heat exchange efficiency of the heat exchanger. In addition, the air duct can also flow through all the straight tubes in the tube group, which is conducive to realizing the heat exchange mode of counterflow or quasi-counterflow, thereby improving the heat exchange efficiency of the heat exchanger.

[0011] In an example, the plurality of straight tubes in the tube group are arranged along a fourth direction, which is perpendicular to the first direction and the second direction. In the fourth direction, the plurality of straight tubes include at least one first straight tube and at least one second straight tube at two ends. The distance between the at least one first straight tube and the first surface is greater than the distance between the at least one first straight tube and the second surface, and the distance between the at least one second straight tube and the first surface is less than the distance between the at least one second straight tube and the second surface. It can be understood that the first straight tube and the second straight tube determine the projection area of the entire tube group in the first direction. When arranging the tube group, the positions of the other straight tubes can be reasonably arranged according to the positions of the first straight tube and the second straight tube, so that the projection area of the tube group in the first direction is greater than or equal to the projection area of the tube group in the third direction, which can improve the convenience of arranging the other straight tubes.

[0012] In an example, the plurality of straight tube units in the tube group are arranged along a third direction, each straight tube unit includes a plurality of straight tubes, and the plurality of straight tubes in each straight tube unit are arranged along a fourth direction. In each straight tube unit, the plurality of straight tubes are connected in sequence along the fourth direction. The plurality of straight tube units are connected in sequence along the third direction. This connection mode can reduce the temperature difference between different regions in the tube group, and is conducive to achieving a counterflow or quasi-counterflow heat exchange mode, which is beneficial to improving the heat exchange performance of the heat exchanger.

[0013] In an example, the first port is an air outlet, and the second port is an air inlet. The tube group includes a liquid inlet and a liquid outlet, and the plurality of straight tubes are connected in sequence between the liquid inlet and the liquid outlet. The liquid inlet is located at one end of the straight tube close to the first surface, and the liquid outlet is located at one end of the straight tube close to the second surface, so that a counterflow or quasi-counterflow heat exchange mode can be achieved, which is beneficial to improving the heat exchange performance of the heat exchanger.

[0014] In an example, the heat exchanger further includes a plurality of fins. The plurality of fins are stacked along a fourth direction, which is perpendicular to the first direction and the second direction. The gap between adjacent two fins forms an air duct. The fins can increase the heat exchange area of the heat exchanger, thereby improving the heat exchange performance of the heat exchanger. In addition, the gap between adjacent two fins can form the air duct, which can improve the flow efficiency of air and the heat exchange efficiency of the heat exchanger.

[0015] In an example, each fin has a plurality of through holes penetrating through the thickness of the fin, and the straight tube is arranged in the through hole. The straight tube arranged in the through hole can realize the fixed connection between the fin and the straight tube, and the straight tube and the fin have good heat transfer efficiency.

[0016] In an example, along the first direction and the fourth direction, the adjacent four through holes form a rhombus, so as to reasonably constrain the arrangement position of the straight tube.

[0017] In an example, the heat exchanger comprises a plurality of tube groups, and the plurality of tube groups are arranged in sequence along a fourth direction. The fourth direction is perpendicular to the first direction and the second direction. By arranging the plurality of tube groups, the heat exchange performance of the heat exchanger can be effectively improved.

[0018] In an example, the heat exchanger further comprises an inlet main pipe and an outlet main pipe. The inlet main pipe is connected to the inlet of each tube group, and the outlet main pipe is connected to the outlet of each tube group, so as to facilitate the effective flow of the fluid medium in each tube group.

[0019] In a second aspect, the present application further provides a heat exchange device. The heat exchange device comprises a fan and at least one heat exchanger as described above. The fan is located on the first surface or the second surface, and the fan is used to generate air flow through the air duct. Moreover, the flow direction of the air flow is parallel to the third direction.

[0020] In the heat exchange device provided by the present application, the heat exchange performance of the heat exchange device can be effectively improved by being equipped with the heat exchanger as described above. In addition, the flow direction of the air can be effectively controlled by the fan, so as to further improve the heat exchange performance of the heat exchange device.

[0021] In a specific arrangement, the heat exchange device comprises two heat exchangers, and the two heat exchangers are arranged at an angle. The fan is located at the open end between the two heat exchangers, so that the air can pass through the heat exchanger in a direction inclined to the thickness direction of the heat exchanger, thereby facilitating the improvement of the heat exchange efficiency of the heat exchange device. BRIEF DESCRIPTION OF DRAWINGS

[0022] FIG. 1 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0023] FIG. 2 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0024] FIG. 3 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0025] FIG. 4 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0026] FIG. 5 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0027] FIG. 6 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0028] FIG. 7 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0029] FIG. 8 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0030] FIG. 9 is a schematic view of a heat exchanger according to an embodiment of the present application;

[0031] FIG. 10 is a schematic diagram of a planar structure of another heat exchanger provided in an embodiment of the present application;

[0032] FIG. 11 is a schematic diagram of a planar structure of another heat exchanger provided in an embodiment of the present application;

[0033] FIG. 12 is a schematic diagram of a planar structure of another heat exchanger provided in an embodiment of the present application;

[0034] FIG. 13 is a schematic diagram of a planar structure of another heat exchanger provided in an embodiment of the present application;

[0035] FIG. 14 is a schematic diagram of a planar structure of another heat exchanger provided in an embodiment of the present application;

[0036] FIG. 15 is a schematic diagram of a three-dimensional structure of another heat exchanger provided in an embodiment of the present application;

[0037] FIG. 16 is a schematic diagram of a three-dimensional structure of a heat exchange device provided in an embodiment of the present application;

[0038] FIG. 17 is a schematic diagram of a three-dimensional structure of a part of a heat exchange device provided in an embodiment of the present application;

[0039] FIG. 18 is a schematic diagram of a three-dimensional structure of a part of a heat exchange device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the drawings.

[0041] In order to facilitate understanding of the heat exchanger provided in the embodiments of the present application, the application scenarios thereof will be introduced first below.

[0042] The heat exchanger provided in the embodiments of the present application can be applied in fields such as data centers, and is used for heat dissipation of electronic devices in the data center, so as to ensure normal operation of the data center.

[0043] For example, in a specific application, the data center can include a machine room and electronic devices such as communication devices, storage devices and power supply devices located in the machine room. In actual application, some electronic devices generate a large amount of heat when running. In order to make the electronic devices be in a normal temperature range, the heat exchanger can be used to cool the electronic devices in the machine room or the air in the machine room.

[0044] As shown in FIG. 1, in an example provided in the present application, the heat exchanger 10 includes a tube group 11 and a plurality of fins 12.

[0045] Specifically, the plurality of fins 12 are arranged in the Y-axis direction with intervals, each fin 12 is a substantially rectangular plate, and a gap between two adjacent fins 12 forms an air duct 100 for air flow.

[0046] In addition, it should be noted that in the example provided in FIG. 1, only one tube group 11 is shown. In actual application, more tube groups 11 can also be arranged in the Z-axis direction. For ease of understanding, the following will first take one tube group 11 as an example for illustrative description. In addition, the one tube group 11 can also be regarded as one flow process. That is, the tube group 11 includes one liquid inlet for fluid medium to enter and one liquid outlet for fluid medium to flow out.

[0047] As shown in FIGS. 1 and 2, the tube group 11 includes a liquid inlet main pipe 011, a liquid outlet main pipe 012, and a plurality of straight pipes 111 arranged in parallel.

[0048] In FIG. 2, the Z-axis direction view in FIG. 1, the liquid inlet main pipe 011 and the liquid outlet main pipe 012 in the tube group 11 are not shown.

[0049] Each straight pipe 111 extends in the Y-axis direction and sequentially passes through each fin 12. Each fin 12 has a plurality of through holes (not shown in the figure) penetrating through the thickness thereof, and the straight pipe 111 is arranged through the fin 12 by the through holes. In addition, one end (such as the right end in FIG. 2) of each straight pipe 111 is connected with the liquid inlet main pipe 011, and the other end (such as the left end in FIG. 2) of each straight pipe 111 is connected with the liquid outlet main pipe 012. Fluid medium such as water or oil (as shown by solid arrows in FIGS. 1 and 2) can enter the tube group 11 from the liquid inlet 0111 of the liquid inlet main pipe 011, pass through each straight pipe 111, and then be discharged from the liquid outlet 0121 of the liquid outlet main pipe 012. That is, the fluid medium flows in each straight pipe 111 in a direction parallel to the Y-axis.

[0050] When the temperature of the fluid medium flowing in the tube group 11 is relatively low, the cold energy of the fluid medium can be transmitted to the fin 12 through the pipe wall of the straight pipe 111. When the air (as shown by dashed arrows in FIGS. 1 and 2) flows through the air duct 100, heat exchange occurs between the air and the fin 12 and the pipe wall of the straight pipe 111, thereby reducing the temperature of the air. The cooled air is discharged from the air duct 100, thereby achieving the cooling effect of the electronic equipment in the computer room.

[0051] It should be noted that in actual application, the heat exchanger 10 can also have a heating effect. For example, the fluid medium flowing in the tube group 11 can also have a relatively high temperature. The temperature of the air flowing through the air duct 100 is increased, thereby achieving the heating effect.

[0052] For the purpose of understanding the technical solutions of the present application, in the following examples, the heat exchanger 10 will be exemplarily described as an example of realizing the refrigeration effect. That is, the temperature of the fluid medium flowing in the tube group 11 is relatively low, and the temperature of the air entering the air duct 100 is relatively high. Therefore, the air is cooled after flowing through the air duct 100.

[0053] Please refer to FIG. 1 and FIG. 3. FIG. 3 is a view of the Y-axis direction in FIG. 1.

[0054] The plurality of straight tubes 111 in the tube group 11 are usually arranged side by side in a rectangular array. That is, along the Y-axis direction, the projection of the plurality of straight tubes 111 in the tube group 11 on the fin 12 is approximately within a rectangular profile. Therefore, when the air flows in the thickness direction (i.e., the X direction) of the heat exchanger 10, it can flow through the surface of each straight tube 111 in the tube group 11, thereby achieving a better cooling effect.

[0055] In actual application, the thickness dimension (dimension in the X direction) of the heat exchanger 10 is usually small. Therefore, it is difficult to arrange more straight tubes 111 along the thickness direction of the heat exchanger 10. In addition, the extension direction of the air duct 100 is consistent with the thickness direction of the heat exchanger 10. Therefore, the length dimension of the air duct 100 or the flow path of the air is relatively small, and the number of straight tubes 111 through which the air flows is also relatively small, resulting in a relatively low heat exchange efficiency. For example, in the examples provided in FIG. 1 and FIG. 3, the tube group 11 includes nine straight tubes 111. When the air flows in the X-axis direction, it can only flow through three rows of straight tubes 111 in turn. Therefore, the heat exchange efficiency between the air and the straight tubes 111 is relatively low.

[0056] Therefore, the present application provides a heat exchanger 10 with a relatively high heat exchange efficiency.

[0057] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0058] In addition, in order to facilitate understanding of the technical solutions of the present application, a spatial coordinate system is introduced in some drawings of the following examples. The X-axis, Y-axis and Z-axis are all parallel to each other. The X-axis, S-axis and Z-axis are located in the same plane, and the S-axis forms an angle with the X-axis and Z-axis. In some descriptions, the direction parallel to the X-axis can be considered as the first direction or the thickness direction of the heat exchanger. The direction parallel to the Y-axis can be considered as the second direction or the width direction of the heat exchanger. The direction parallel to the S-axis can be considered as the third direction. The direction parallel to the Z-axis can be considered as the fourth direction or the length direction of the heat exchanger. It should be understood that the perpendicular or parallel described in the present application refers to the approximate perpendicular or parallel, not the strict sense of perpendicular or parallel.

[0059] As shown in FIG. 4, in one example provided in the present application, the heat exchanger 10 includes a plurality of fins 12.

[0060] Specifically, the plurality of fins 12 are arranged in intervals along the Y-axis direction, each fin 12 is substantially rectangular plate-shaped, and the gap between two adjacent fins 12 forms an air duct 100 for air circulation.

[0061] In which, the shape and size of each fin 12 are substantially the same, and the edges of each fin 12 are substantially flush, so that the plurality of fins 12 collectively form a substantially rectangular block structure (as shown by the dashed line frame in FIG. 4).

[0062] For example, along the X-axis direction, one side of each fin 12 is substantially located at the first surface A1, and the other side of each fin 12 is substantially located at the second surface A2. Alternatively, it can be understood that, from the perspective of the whole heat exchanger 10, the first surface A1 and the second surface A2 are two surfaces of the heat exchanger 10 facing away from each other along the X-axis direction. In addition, along the Z-axis direction, one side of each fin 12 is substantially located at the third surface A3, and the other side of each fin 12 is substantially located at the fourth surface A4. Alternatively, it can be understood that, from the perspective of the whole heat exchanger 10, the third surface A3 and the fourth surface A4 are two surfaces of the heat exchanger 10 facing away from each other along the Z-axis direction.

[0063] The air duct 100 formed between two adjacent fins 12 penetrates through the first surface A1, the second surface A2, the third surface A3 and the fourth surface A4, so that external air can enter the air duct 100 from any one of the surfaces and be discharged from any other one of the surfaces.

[0064] In actual application, the circulation direction of air can be determined according to actual conditions. For example, when air enters the air duct 100 from the second surface A2 and is discharged from the first surface A1, it can be considered that the air duct 100 penetrates through the first surface A1 and the second surface A2. In addition, the first port (such as the air outlet) of the air duct 100 is located at the first surface A1, and the second port (such as the air inlet) of the air duct 100 is located at the second surface A2. In which, the air can circulate along the X direction or along the S-axis direction which is at an angle with the X-axis direction (as shown by the dashed arrow in FIG. 4) when flowing through the air duct 100. In specific application, the circulation direction of air can be adjusted by configuring a fan or the like.

[0065] Of course, in other examples, the third surface A3 and the fourth surface A4 can also be provided with flow guide plates or other structural members to prevent air from leaking from the third surface A3 and the fourth surface A4, thereby ensuring the air circulation efficiency. Alternatively, a separate flow guide plate can also be provided between two adjacent fins 12 to reasonably constrain the shape of the air duct 100, thereby controlling the extension direction of the air duct 100 or the air circulation direction.

[0066] It should be noted that in the example provided in FIG. 4, the first surface A1 and the second surface A2 are both substantially planar, and the first surface A1 and the second surface A2 are substantially parallel. In other examples, the first surface A1 and the second surface A2 can also be at an angle, i.e., the first surface A1 and the second surface A2 can be opposite along the X-axis direction. In addition, the first surface A1 and the second surface A2 can also be curved surfaces, etc. For example, the edges of the fins 12 can be wavy, or the edges of the plurality of fins 12 can not be in a flush position relationship. Alternatively, the relative position between two adjacent fins 12 can also be non-parallel, which will not be described here.

[0067] In the examples provided in the present application, the extension direction of the air duct 100 or the circulation direction of the air in the air duct 100 is parallel to the S-axis direction, which is beneficial to improve the heat exchange efficiency of the heat exchanger 10.

[0068] Specifically, as shown in FIG. 1, when the air circulates in the air duct 100 along the X-axis direction, the circulation distance of the air or the length of the air duct 100 is consistent with the thickness dimension of the heat exchanger 10.

[0069] As shown in FIG. 4, when the air circulates in the air duct 100 along the S-axis direction, the circulation distance of the air or the length of the air duct 100 is greater than the thickness dimension of the heat exchanger 10, and therefore, the heat exchange effect between the air and the heat exchanger 10 can be obviously improved, and thus the heat exchange performance of the heat exchanger 10 is improved.

[0070] Alternatively, it can be understood that the temperature of the air gradually decreases when the air flows through the air duct 100. When the circulation direction of the air is at an angle to the thickness direction of the heat exchanger 10, the length of the air duct 100 can be extended within the limited thickness dimension. Therefore, the temperature of the air can be further reduced, which is beneficial to improve the heat exchange effect when the air circulates in the air duct 100.

[0071] As shown in FIG. 4, in the examples provided in the present application, the heat exchanger 10 further includes a tube group 11.

[0072] Specifically, the tube group 11 includes a plurality of straight tubes arranged in parallel, each of which extends along the Y-axis direction and sequentially passes through each fin 12. Each fin 12 has a plurality of through holes (not shown in the figure) passing through its thickness. The straight tube is arranged through the fin 12 by the through hole to achieve the fixed connection between the straight tube and the fin 12.

[0073] It should be understood that in the above examples, the example of the fin 12 being a rectangular sheet is exemplarily described. In other examples, the fin 12 can also be a polygonal plate structure such as a parallelogram or a triangle. Alternatively, the fin 12 can also be a circular, elliptical or other irregular plate structure. In a specific arrangement, the shape and position layout of the fin 12 can be reasonably arranged according to actual needs, which will not be described here.

[0074] In addition, in actual application, the heat exchanger 10 can also not include the fin 12. That is, the heat exchanger 10 can only include the tube group 11, and the space where the tube group 11 is located can be considered as an open air duct. The main role of the fin 12 is to be in thermal contact with the tube group 11 to increase the heat exchange area. Alternatively, the fin 12 can form an air duct for air circulation and have a certain restriction on the direction of air circulation.

[0075] In order to facilitate understanding of the technical solutions of the present application, in the following examples, the rectangular plate fin 12 in the heat exchanger 10 will be exemplarily described.

[0076] In a specific application, the tube group 11 can also be considered as a flow process. That is, the tube group 11 includes a liquid inlet for fluid medium to enter and a liquid outlet for fluid medium to flow out. The ends of the plurality of straight tubes are sequentially connected, and the fluid medium such as water or oil can enter the tube group from the liquid inlet and flow through each straight tube in turn and then flow out from the liquid outlet.

[0077] For example, in the example provided in FIG. 4, the tube group 11 includes twelve straight tubes, specifically, straight tube 111a, straight tube 111b, straight tube 111c, straight tube 111d, straight tube 111e, straight tube 111f, straight tube 111g, straight tube 111h, straight tube 111i, straight tube 111j, straight tube 111k and straight tube 111m are sequentially connected. One end of the straight tube 111a can be used as the liquid inlet 1101, and one end of the straight tube 111m can be used as the liquid outlet 1102. It should be noted that the liquid inlet 1101 and the liquid outlet 1102 can be determined according to actual use. That is, in some cases, the liquid inlet 1101 can be used as the liquid outlet, and the liquid outlet 1102 can be used as the liquid inlet.

[0078] In actual application, there are many ways to achieve sequential connection between multiple straight tubes.

[0079] As an example, as shown in FIG. 4 and FIG. 5. The straight pipe 111a and the straight pipe 111b are connected through the connecting pipe 112a, and the straight pipe 111b and the straight pipe 111c are connected through the connecting pipe 112b. Among them, the connecting pipe 112a and the connecting pipe 112b are both approximately U-shaped pipes. The connecting pipe 112a and the straight pipe 111a and the straight pipe 111b can be fixedly connected through welding or the like, or the connecting pipe 112a, the straight pipe 111a and the straight pipe 111b can also be an integral structure.

[0080] It can be understood that in actual application, the connecting pipe 112a and the connecting pipe 112b can also be other shape structures, or the connecting pipe 112a and the connecting pipe 112b can also be a type of hose. That is, the connecting pipe can realize the connection between two straight pipes, and the specific shape and type of the connecting pipe are not limited in the present application.

[0081] Of course, in FIG. 5, only the connection between the straight pipe 111a, the straight pipe 111b and the straight pipe 111c is shown. In actual application, other straight pipes can also be similarly arranged according to the connection mode between the straight pipe 111a, the straight pipe 111b and the straight pipe 111c, which will not be described here.

[0082] In the examples provided in the present application, by reasonably setting the position and layout of the straight pipes in the pipe group 11, the heat exchange performance of the heat exchanger 10 can be effectively improved.

[0083] For example, please refer to FIG. 4 and FIG. 6, wherein FIG. 6 is a view of the Y-axis direction in FIG. 4.

[0084] The plurality of straight pipes in the pipe group 11 are arranged in parallel along the S-axis direction, so that the projection area of the pipe group 11 in the X-axis direction is greater than the projection area of the pipe group 11 in the S-axis direction, thereby improving the heat exchange performance of the heat exchanger 10.

[0085] For example, assuming that the caliber of each straight pipe is R, and the length of each straight pipe is L. Along the S-axis direction, the distance between the adjacent two straight pipes is L0. Along the Z-axis direction, the distance between the adjacent two straight pipes is L0. Therefore, without considering the connecting pipe for connecting the straight pipes, the projection area of the pipe group 11 in the X-axis direction is L2*L. The projection area of the pipe group 11 in the S-axis direction is L1*L. As can be seen from FIG. 6, L1 < L2, that is, the projection area of the pipe group 11 in the X-axis direction is greater than the projection area of the pipe group 11 in the S-axis direction.

[0086] In the examples provided in the present application, after the straight pipes in the pipe group 11 are arranged along the S-axis direction, the heat exchange performance of the heat exchanger 10 can be improved from at least two aspects.

[0087] In the first aspect, the number of straight tubes in the tube group 11 can be increased within the limited thickness dimension of the heat exchanger 10, so as to improve the heat exchange performance of the heat exchanger 10.

[0088] In the second aspect, the heat exchange performance of the heat exchanger 10 can be improved in combination with the flow direction of the air.

[0089] Specifically, in the first aspect, as shown in FIG. 3 and FIG. 6. It is assumed that the caliber of each straight tube is R, and the length of each straight tube is L. Along the Z-axis direction, the distance between two adjacent straight tubes is L0. And in FIG. 3 and FIG. 6, the size of the heat exchanger 10 in the X-axis direction (i.e. the thickness dimension) is the same.

[0090] In addition, in FIG. 3, along the X-axis direction, the distance between two adjacent straight tubes is L0. In FIG. 6, along the S-axis direction, the distance between two adjacent straight tubes is L0.

[0091] In FIG. 3, the straight tubes in the tube group 11 are arranged along the X-axis direction, so only three rows of straight tubes can be arranged along the X-axis direction.

[0092] In FIG. 6, the straight tubes in the tube group 11 are arranged along the S-axis direction, and the size of the heat exchanger in the S-axis direction is larger than that in the X-axis direction, so four rows of straight tubes can be arranged along the S-axis direction.

[0093] Therefore, by arranging the straight tubes in the tube group 11 along the S-axis direction, the number of straight tubes in the tube group 11 can be increased within the limited thickness dimension of the heat exchanger 10, so as to increase the path of the fluid flowing through the tube group 11, thereby improving the heat exchange performance of the heat exchanger 10.

[0094] In the second aspect, please continue to refer to FIG. 3 and FIG. 6.

[0095] In the example provided in FIG. 3, the flow direction of the air is shown by the dashed arrow in FIG. 3. That is, the flow direction of the air is consistent with the X-axis direction, or the extension direction of the air duct 100 is parallel to the X-axis direction.

[0096] In the example provided in FIG. 6, the flow direction of the air is shown by the dashed arrow in FIG. 6. That is, the flow direction of the air is consistent with the S-axis direction, or the extension direction of the air duct 100 is parallel to the S-axis direction.

[0097] By comparing FIG. 3 and FIG. 6, it can be seen that the flow path of the air in FIG. 6 is obviously longer than that in FIG. 3. Therefore, in the example provided in FIG. 6, the air has a lower temperature after flowing through the heat exchanger 10. In addition, when flowing, the air can also exchange heat with more straight tubes, so the temperature can be further reduced.

[0098] Or it can be understood that in the example provided in FIG. 3, the projection area of the tube group 11 in the X-axis direction is L21*L. The projection area of the tube group 11 in the S-axis direction is L11*L. It can be clearly seen from FIG. 3 that L11>L21, that is, the projection area of the tube group 11 in the X-axis direction is smaller than the projection area of the tube group 11 in the S-axis direction.

[0099] In the example provided in FIG. 6, the projection area of the tube group 11 in the S-axis direction is L1*L. The projection area of the tube group 11 in the X-axis direction is L21*L. It can be clearly seen from FIG. 3 and FIG. 6 that L1<L21.

[0100] That is, the caliber of the air (or air duct) flowing through the tube group 11 in FIG. 6 is smaller than the caliber of the air (or air duct) flowing through the tube group 11 in FIG. 3. Therefore, in FIG. 3 and FIG. 6, when the air volume flowing through the tube group 11 is the same, the air in FIG. 6 can have a higher flow rate when flowing through the tube group 11, and therefore, has a higher heat exchange effect.

[0101] In summary, in the examples provided in the present application, after arranging the straight tubes in the tube group 11 along the S-axis direction, a larger number of straight tubes can be arranged in a limited thickness dimension, which can effectively improve the flow path of the fluid medium in the tube group 11 and effectively improve the heat exchange performance of the heat exchanger 10. In addition, when the flow direction of the air is consistent with the S-axis direction, a longer flow path can be obtained. In addition, it is also beneficial to reduce the caliber of the air when flowing through the tube group 11, which helps to improve the flow rate of the air, thereby effectively improving the heat exchange performance of the heat exchanger 10.

[0102] It should be noted that in specific applications, the angle between the S-axis and the X-axis can be any value between 0° and 90°. In specific applications, the specific angle between the S-axis and the X-axis can be reasonably set according to actual needs, which will not be repeated here.

[0103] In addition, when arranging the straight tubes in the tube group 11, the straight tubes can also not be arranged in the strict sense along the S-axis direction. That is, when arranging, it is only necessary to ensure that the projection area of the tube group 11 in the S-axis direction is the smallest.

[0104] Or, in some examples, the projection area of the tube group 11 in the S-axis direction and the projection area of the tube group 11 in the X-axis direction can also be approximately the same. That is, the projection area of the tube group 11 in the S-axis direction is not greater than the projection area of the tube group 11 in the X-axis direction.

[0105] As shown in FIG. 4 and FIG. 5, in the examples provided in the present application, the tube group 11 includes three rows of straight tubes arranged along the Z-axis direction. In other examples, the tube group 11 can also include one row of straight tubes, two rows of straight tubes, or more rows of straight tubes arranged along the Z-axis direction.

[0106] For the convenience of understanding the technical solutions of the present application, the following will exemplarily illustrate the case that the tube group 11 comprises three rows of straight tubes arranged along the Z-axis direction.

[0107] In the examples provided by the present application, the plurality of straight tubes in the tube group 11 are connected in sequence, so that the tube group 11 has one liquid inlet 1101 and one liquid outlet 1102. Without considering the connecting tube for connecting two straight tubes, the flow distance of the fluid medium in the entire tube group is approximately equal to the sum of the lengths of all the straight tubes, and therefore, the flow distance of the fluid medium in the tube group 11 can be maximally guaranteed to enable the heat exchanger 10 to have a better heat exchange effect.

[0108] Specifically, as shown in FIG. 6, the solid arrows in FIG. 6 show the approximate flow path of the fluid medium. The fluid medium enters the straight tube 111a from the liquid inlet 1101 and then flows through the straight tube 111b, the straight tube 111c, the straight tube 111d, and so on, and finally is discharged from the liquid outlet 1102 at one end of the straight tube 111m. In the flow process, the fluid medium constantly exchanges heat with the tube wall of the straight tube, and therefore, the temperature of the fluid medium gradually increases in the flow process. The fluid medium flows through each straight tube in sequence, and therefore, the cold energy of the fluid medium can be efficiently utilized.

[0109] In addition, in the examples provided by the present application, the plurality of straight tubes are connected in sequence, and the counterflow or quasi-counterflow heat exchange mode can also be realized, which has a better heat exchange efficiency.

[0110] Please refer to FIG. 3 and FIG. 6.

[0111] In the example provided in FIG. 3, the tube group 11 in the heat exchanger 10 adopts a cross-flow architecture.

[0112] Specifically, please refer to FIG. 2 and FIG. 3. The fluid medium can enter the tube group 11 from the liquid inlet 0111 of the liquid inlet main tube 011, and then be divided into nine paths to flow through the nine straight tubes 111 and then be collected to the liquid outlet main tube 012, and finally be discharged from the liquid outlet 0121 of the liquid outlet main tube 012. That is, the flow distance of the fluid in the tube group 11 is basically the same as the length of a single straight tube 111. And overall, the flow direction of the fluid medium is basically perpendicular to the flow direction of the air, the heat exchange efficiency is low, and the temperature difference between different regions is large. For example, when the fluid medium flows from right to left in the straight tube 111, the temperature gradually increases. Therefore, the air near the right side has a larger temperature drop after flowing through the air duct 100, while the air near the left side has a smaller temperature drop after flowing through the air duct 100. Therefore, the temperature difference between the air in the left region and the air in the right region is large.

[0113] In addition, as can be seen from FIG. 3, along the X-axis direction, the temperature of the air gradually decreases, and the temperature of the fluid substantially remains unchanged, so the efficiency of heat exchange between the air and the fluid is gradually reduced. Specifically, when the air enters the air duct 100, the temperature of the air is high, so the temperature difference between the air and the fluid is large, and a high heat exchange efficiency can be achieved. As the air flows along the X-axis direction in the air duct 100, the temperature of the air decreases, but along the X-axis direction, the temperature of the fluid substantially remains unchanged, so the temperature difference between the air and the fluid gradually decreases, thereby reducing the heat exchange efficiency between the air and the fluid.

[0114] In the example provided in FIG. 6, the tube group 11 in the heat exchanger 10 adopts a counter-flow or quasi-counter-flow architecture.

[0115] That is, overall, the flow direction of the fluid medium is opposite to the flow direction of the air. Alternatively, the direction in which the temperature of the fluid medium increases is opposite to the direction in which the temperature of the air decreases, so that the air and the fluid always have a high temperature difference and have a good heat exchange efficiency.

[0116] Specifically, the tube group 11 includes a plurality of (four are shown in FIG. 6) straight pipe units arranged along the S-axis direction, each straight pipe unit includes a plurality of (four are shown in FIG. 6) straight pipes, and the plurality of straight pipes in each straight pipe unit are arranged along the Z-axis direction. In each straight pipe unit, the plurality of straight pipes are connected in sequence along the Z-axis direction. The plurality of straight pipe units are connected in sequence along the S-axis direction.

[0117] For example, the straight pipe 111a, the straight pipe 111b, and the straight pipe 111c can be regarded as a straight pipe unit, the straight pipe 111d, the straight pipe 111e, and the straight pipe 111f can be regarded as a straight pipe unit, the straight pipe 111g, the straight pipe 111h, and the straight pipe 111i can be regarded as a straight pipe unit, and the straight pipe 111j, the straight pipe 111k, and the straight pipe 111m can be regarded as a straight pipe unit. The four straight pipe units are arranged in sequence along the S-axis direction, and in each straight pipe unit, the straight pipes are connected in sequence along the Z-axis direction. Adjacent two straight pipe units are connected in sequence along the S-axis direction, so that the air and the medium have a good counter-flow effect.

[0118] Specifically, the fluid medium enters the straight pipe 111a from the liquid inlet 1101, and then flows through the straight pipe 111b, the straight pipe 111c, and the straight pipe 111d, and finally is discharged from the liquid outlet 1102 at one end of the straight pipe 111m. The fluid medium continuously exchanges heat with the air in the flow process, so the temperature gradually rises. That is, along the S-axis direction, the temperature of the fluid medium gradually rises. In addition, the air continuously exchanges heat with the fluid medium in the flow process, so the temperature gradually decreases. That is, in the entire flow process of the air along the S-axis direction, a large temperature difference is maintained between the air and the fluid medium, which is beneficial to improve the heat exchange efficiency between the air and the fluid medium. That is, the heat exchanger 10 has good heat exchange efficiency.

[0119] In a specific arrangement, the arrangement position of the straight pipes in the pipe group 11 can be various. In general, when arranging the straight pipes, it is only necessary to ensure that the projection area of the pipe group 11 in the S-axis direction is less than or equal to the projection area of the pipe group 11 in the X-axis direction.

[0120] For example, as shown in FIG. 6, in an example provided by the present application, in the Z-axis direction, the first straight pipe 111a and the second straight pipe 111j are located at the two ends. That is, along the Z-axis direction, the first straight pipe 111a and the second straight pipe 111j are respectively located at the two ends of the entire pipe group 11. Therefore, the first straight pipe 111a and the second straight pipe 111j determine the projection area of the entire pipe group 11 in the X-axis direction, so as to facilitate the reasonable arrangement of the positions of other straight pipes.

[0121] For example, when arranging other straight pipes, it is only necessary to ensure that the projection area of the pipe group 11 in the S-axis direction is less than or equal to the projection area of the pipe group 11 in the X-axis direction. It should be noted that in the example provided in FIG. 6, the first straight pipe 111a is the rightmost straight pipe in the pipe group 11, and the second straight pipe 111j is the leftmost straight pipe in the pipe group 11.

[0122] In addition, in a specific arrangement, the distance between the first straight pipe 111a and the first surface A1 is greater than the distance between the first straight pipe 111a and the second surface A2. The distance between the second straight pipe 111j and the first surface A1 is less than the distance between the second straight pipe 111j and the second surface A2. So that the projection area of the entire pipe group 11 in the S-axis direction is small.

[0123] When arranging the straight pipes in the pipe group 11, the relative positions between adjacent straight pipes can be various.

[0124] For example, as shown in FIG. 6, in one example provided by the present application, straight tubes 111c, 111d, 111e and 111h form a rhombus. That is, along the X-axis direction and the Z-axis direction, the four adjacent straight tubes form a rhombus. Of course, in other examples, the four adjacent straight tubes can form a parallelogram or other shapes, which will not be described here.

[0125] In other embodiments, the rightmost end of the tube group 11 can also be two, three or more straight tubes. The leftmost end of the tube group 11 can also be two, three or more straight tubes.

[0126] For example, as shown in FIG. 7, in one example provided by the present application, straight tubes 111a and 111f are both located at the rightmost end of the tube group 11. Of course, this arrangement can increase the projection area of the tube group 11 in the S-axis direction, but the projection area of the entire tube group 11 in the S-axis direction is still smaller than the projection area of the tube group 11 in the X-axis direction.

[0127] It should be noted that in the specific arrangement, each fin 12 has a through hole for the straight tube to pass through. Therefore, when setting the position of the through hole in the fin 12, the position layout of the straight tube in the tube group 11 can be correspondingly set. For example, in the fin 12, along the X-axis direction and the Z-axis direction, the four adjacent through holes can form a rhombus, etc., which will not be described here.

[0128] In the above examples, the example is illustratively described by taking one tube group 11 included in the heat exchanger 10. In other examples, the heat exchanger 10 can also include two, three or more tube groups 11. Among them, the plurality of tube groups 11 can be arranged in sequence along the Z-axis direction. In addition, the position layout and connection of the plurality of straight tubes in each tube group 11 can also be various.

[0129] Next, taking the heat exchanger 10 including two tube groups as an example, the position layout and connection of the straight tubes in the tube group will be illustratively described.

[0130] As shown in FIGS. 8-10, the heat exchanger 10 includes two tube groups, namely tube group 11a and tube group 11b, and each tube group includes eighteen straight tubes 111. In FIGS. 8-10, the solid arrow represents the approximate flow direction of the fluid medium, and the dashed arrow represents the approximate flow direction of the air.

[0131] In FIGS. 8-10, the position layout of the straight tubes 111 in the tube group 11a and the tube group 11b is substantially the same. For example, the tube group 11a and the tube group 11b are both located within a substantially parallelogram contour, and the projections of the tube group 11a and the tube group 11b in the S-axis direction do not overlap.

[0132] In FIGS. 8 to 10, the positions of the liquid inlet and the liquid outlet are different, and the connection between the straight pipes or the flow path of the fluid is different.

[0133] Specifically, in FIG. 8, the liquid inlet 1101a and the liquid outlet 1102a of the pipe group 11a are both located on the side close to the pipe group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the pipe group 11b are both located on the side away from the pipe group 11a.

[0134] In FIG. 9, the liquid inlet 1101a and the liquid outlet 1102a of the pipe group 11a are both located on the side away from the pipe group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the pipe group 11b are both located on the side close to the pipe group 11a.

[0135] In FIG. 10, the liquid inlet 1101a and the liquid outlet 1102a of the pipe group 11a are both located on the side away from the pipe group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the pipe group 11b are both located on the side away from the pipe group 11a.

[0136] In general, in the examples provided in FIGS. 8 to 10, the projections of the pipe group 11a and the pipe group 11b on the S-axis direction do not overlap, and therefore, when the air flows in the S-axis direction, the air flow through the pipe group 11a and the air flow through the pipe group 11b hardly cross each other. That is, the pipe group 11a and the pipe group 11b have good independence. In the specific arrangement, the positions of the liquid inlet and the liquid outlet can be flexibly arranged, which is not described here.

[0137] In addition, in FIGS. 11 to 14, the projections of the pipe group 11a and the pipe group 11b on the S-axis direction overlap.

[0138] Specifically, in FIG. 11, the positions of the straight pipes 111 in the pipe group 11a and the pipe group 11b are substantially the same. The liquid inlet 1101a and the liquid outlet 1102a of the pipe group 11a are both located on the side close to the pipe group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the pipe group 11b are both located on the side close to the pipe group 11a.

[0139] In FIG. 12, the positions of the straight pipes 111 in the pipe group 11a and the pipe group 11b are different. In addition, the liquid inlet 1101a and the liquid outlet 1102a of the pipe group 11a are both located on the side close to the pipe group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the pipe group 11b are both located on the side close to the pipe group 11a.

[0140] In FIG. 13, the positions of the straight tubes 111 in the tube groups 11a and 11b are different. In addition, the liquid inlet 1101a and the liquid outlet 1102a of the tube group 11a are both located near one side of the tube group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the tube group 11b are both located near one side of the tube group 11a.

[0141] In FIG. 13, the positions of the straight tubes 111 in the tube groups 11a and 11b are different. In addition, the liquid inlet 1101a and the liquid outlet 1102a of the tube group 11a are both located near one side of the tube group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the tube group 11b are both located near one side of the tube group 11a.

[0142] In summary, in the examples provided in FIGS. 8-14, the projections of the tube groups 11a and 11b in the S-axis direction overlap, so that when air flows in the S-axis direction, the air flow through the tube group 11a and the air flow through the tube group 11b can intermingle with each other, which is conducive to achieving effective cooperation between the tube groups 11a and 11b, thereby achieving more diverse heat exchange designs. When specifically arranged, the positions of the liquid inlets and the liquid outlets can be flexibly arranged, which will not be described here.

[0143] It can be understood that in the above examples, the position layout of the straight tubes 111 in the heat exchanger 10 is exemplarily described in several possible implementation manners. When specifically arranged, the number of the tube groups 11 included in the heat exchanger 10, the number and position layout of the straight tubes 111 in each tube group 11 can be flexibly arranged according to actual needs, which will not be described here.

[0144] For example, as shown in FIG. 15, the heat exchanger 10 can include ten tube groups 11, and the ten tube groups 11 are sequentially arranged along the Z-axis direction.

[0145] In actual application, the heat exchanger 10 can be independently applied in a scene where heat exchange is required, such as a data center. Alternatively, the heat exchanger 10 can also be integrated with other devices.

[0146] For example, as shown in FIG. 16, the present application also provides a heat exchange device 20, which includes two heat exchangers 10 described above.

[0147] Specifically, as shown in FIGS. 16-18, the heat exchange device 20 further includes a fan 21 and a support 22. The two heat exchangers 10 are fixedly connected with the support 22, and the two heat exchangers 10 are arranged at an included angle, so that the two heat exchangers 10 form a herringbone or a V shape.

[0148] The fan 21 is located at the open end of the two heat exchangers 10, and the closed end of the two heat exchangers 10 is covered by the cover plate 24. The side between the two heat exchangers 10 is covered by the cover plate 23. In addition, the heat exchange device 20 can also be covered by a cover plate (not shown in the figure) around the support 22, so that air can enter from the top of the heat exchange device 20 and be discharged from the bottom.

[0149] The dashed arrows in FIG. 16 show the approximate flow direction of the air. When the fan 21 is running, external air can enter the heat exchange device 20 from the top, flow into the air ducts of the two heat exchangers 10 from the second surface A2 of the two heat exchangers 10 respectively, and be discharged from the first surface A1, and finally be discharged outward after flowing through the fan 21.

[0150] That is, the air can pass through the heat exchanger 10 obliquely to the thickness direction of the heat exchanger 10, so as to help improve the heat exchange efficiency of the heat exchange device 20. Wherein, the flow direction of the air flowing through the heat exchanger 10 is consistent with the S-axis direction described above, which will not be repeated here.

[0151] In addition, as shown in FIG. 18, the heat exchange device 20 also includes a liquid inlet main pipe 25 and a liquid outlet main pipe 26. The liquid inlet main pipe 25 is connected with the liquid inlet of each tube group of the two heat exchangers 10, and the liquid outlet main pipe is connected with the liquid outlet of each tube group of the two heat exchangers 10.

[0152] In the example provided in FIG. 16, two heat exchangers 10 are included in the heat exchange device 20. In other examples, three or more heat exchangers 10 can also be included in the heat exchange device 20, which will not be repeated here.

[0153] In addition, the heat exchange device 20 can be configured in various types of cooling scenarios in specific applications.

[0154] For example, the heat exchange device 20 can be applied to a data center to cool the electronic equipment in the data center. It can be understood that the application scenario of the cooling system is not limited in specific applications.

[0155] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0156] In the present application, "multiple" refers to two or more. The "and / or" describes the relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which means that A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural.

[0157] It can be understood that various numerical numbers involved in the embodiments of the present application are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic.

Claims

1. A heat exchanger, characterized by, The heat exchanger comprises a first surface and a second surface, the first surface and the second surface are arranged to face away from each other along a first direction; The air duct comprises a first port and a second port, the first port is located on the first surface, and the second port is located on the second surface; The tube group is located between the first surface and the second surface; The tube group comprises a plurality of straight tubes arranged in parallel, and the ends of the plurality of straight tubes are sequentially connected; Each of the straight tubes passes through the air duct and extends along a second direction, and the second direction is perpendicular to the first direction; The projection area of the tube group in the first direction is greater than or equal to the projection area of the tube group in a third direction; The third direction is perpendicular to the second direction and forms an angle with the first direction.

2. The heat exchanger of claim 1, wherein The extension direction of the air duct is parallel to the third direction.

3. The heat exchanger according to claim 1 or 2, characterized in that The tube group comprises a plurality of straight tubes arranged along a fourth direction, and the fourth direction is perpendicular to the first direction and the second direction; In the fourth direction, at least one first straight tube and at least one second straight tube are located at both ends; The distance between the at least one first straight tube and the first surface is greater than the distance between the at least one first straight tube and the second surface; The distance between the at least one second straight tube and the first surface is less than the distance between the at least one second straight tube and the second surface.

4. The heat exchanger according to any one of claims 1 to 3, characterized in that The tube group comprises a plurality of straight tube units arranged along a third direction, each of the straight tube units comprises a plurality of straight tubes, and the plurality of straight tubes in each of the straight tube units are arranged along a fourth direction; In each of the straight tube units, the plurality of straight tubes are sequentially connected along the fourth direction; The plurality of straight tube units are sequentially connected along the third direction.

5. The heat exchanger according to any one of claims 1 to 4, characterized in that The first port is an air outlet, and the second port is an air inlet; The tube group comprises a liquid inlet and a liquid outlet, and the plurality of straight tubes are sequentially connected between the liquid inlet and the liquid outlet; The liquid inlet is located at one end of the straight tube close to the first surface, and the liquid outlet is located at one end of the straight tube close to the second surface.

6. The heat exchanger according to any one of claims 1 to 5, characterized in that The heat exchanger further comprises a plurality of fins; The plurality of fins are arranged in a stack along a fourth direction, and the fourth direction is perpendicular to the first direction and the second direction; The gap between adjacent two fins forms the air duct.

7. The heat exchanger of claim 6, wherein Each of the fins has a plurality of through holes penetrating through the thickness thereof, and the straight tubes are arranged in the through holes.

8. The heat exchanger of claim 7, wherein In the first direction and the fourth direction, adjacent four through holes form a rhombus.

9. The heat exchanger according to any one of claims 1 to 8, characterized in that The heat exchanger comprises a plurality of tube groups, and the plurality of tube groups are sequentially arranged along a fourth direction; The fourth direction is perpendicular to the first direction and the second direction.

10. The heat exchanger of claim 9, wherein The heat exchanger further comprises a liquid inlet main pipe and a liquid outlet main pipe; The liquid inlet main pipe is connected with the liquid inlet of each of the tube groups, and the liquid outlet main pipe is connected with the liquid outlet of each of the tube groups.

11. A heat exchange apparatus, characterized by, The heat exchanger comprises a fan and at least one heat exchanger according to any one of claims 1 to 10; The fan is located on the first surface or the second surface, and the fan is used to generate an air flow flowing through the air duct; And the flow direction of the air flow is parallel to the third direction.

12. The heat exchange apparatus according to claim 11, wherein The heat exchange equipment comprises two heat exchangers, and the two heat exchangers are arranged at an included angle. The fan is located at the open end between the two heat exchangers.

Images