Heat exchanger, and heat exchange system

Abstract

Provided in the present application are a heat exchanger and a heat exchange system. The heat exchanger comprises heat exchange plates and first fin structures. A plurality of heat exchange plates are stacked in the direction of thickness, each heat exchange plate comprises a first edge portion and a second edge portion, which are arranged opposite each other in the direction of the width of the heat exchange plate, and each heat exchange plate is provided with a liquid inlet and a liquid outlet; the liquid outlets are arranged at the first edge portions, the liquid inlets are arranged at the second edge portions, the liquid inlets of the plurality of heat exchange plates are in communication with one another, and the liquid outlets of the plurality of heat exchange plates are in communication with one another; and a first coolant flow channel is provided inside each heat exchange plate, and the first coolant flow channel extends in the direction of width of each heat exchange plate. One first fin structure is connected between two adjacent heat exchange plates; and in the direction from the first edge portion to the second edge portion, an airflow can flow along airflow channels of the first fin structures. The embodiments of the present application can improve the heat exchange efficiency of the heat exchanger, thereby completing heat exchange tasks in a shorter time, and thus reducing energy consumption.

Description

Heat exchangers and heat exchange systems

[0001] This application claims priority to Chinese Patent Application No. 202411626470.9, filed on November 13, 2024, entitled "Heat Exchanger and Heat Exchange System", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of heat exchange technology, specifically to a heat exchanger and heat exchange system. Background Technology

[0003] Currently, common heat exchangers dissipate heat through air cooling. As airflow passes through the heat exchanger, it carries away the heat. However, due to the complex structure of heat exchangers, air cooling is relatively inefficient. If the heat exchanger cannot dissipate heat in time, the ambient temperature of the equipment using it will continuously rise, causing the equipment to malfunction. Summary of the Invention

[0004] The embodiments of this application provide a heat exchanger and a heat exchange system that can improve the heat exchange efficiency of the heat exchanger, thereby completing the heat exchange task in a shorter time and reducing energy consumption.

[0005] In a first aspect, this application provides a heat exchanger. The heat exchanger includes heat exchange plates and first fin structures. Multiple heat exchange plates are stacked in the thickness direction. Each heat exchange plate includes a first edge portion and a second edge portion. The first edge portion and the second edge portion are arranged opposite to each other in the width direction of the heat exchange plate. Each heat exchange plate has a liquid inlet and a liquid outlet. The liquid outlet is located in the first edge portion, and the liquid inlet is located in the second edge portion. The liquid inlets of the multiple heat exchange plates are connected, and the liquid outlets of the multiple heat exchange plates are connected. A first coolant flow channel is provided inside the heat exchange plate, extending along the width direction of the heat exchange plate to allow coolant to flow from the liquid inlet to the liquid outlet. Multiple first fin structures are provided, with one first fin structure connected between two adjacent heat exchange plates. The first fin has multiple airflow channels extending from the first edge portion to the second edge portion. Airflow can flow along the airflow channels in the direction from the first edge portion to the second edge portion.

[0006] In this embodiment, the inlet and outlet of the heat exchange plate are located on different sides of the heat exchange plate. During the air-cooling process of the heat exchanger, the airflow can flow through the airflow channel of the first fin structure, passing first through the outlet side and then through the inlet side. Since the coolant in the heat exchange plate flows from the inlet to the outlet, the direction of the first coolant flow is opposite to the direction of the airflow.

[0007] As the coolant flows, its temperature gradually decreases from a high temperature to a low temperature, while the air flows, its temperature gradually increases from a low temperature to a high temperature. The temperature difference between the two remains relatively large. Because of this large temperature difference, the driving force for heat transfer is also greater, resulting in higher heat exchange efficiency.

[0008] Furthermore, as the relative velocity between the coolant and air increases, the amount of fluid passing through the heat exchanger per unit time increases accordingly, thereby increasing the contact area and time for heat exchange and improving heat exchange efficiency. This increased heat exchange efficiency allows systems requiring heat dissipation to reach their preset temperature more quickly, thus improving production efficiency.

[0009] In one possible implementation, the heat exchanger further includes a liquid inlet pipe located between two adjacent heat exchange plates. The liquid inlet pipe extends along the width direction of the heat exchange plates and is arranged sequentially with the first fin structure along the length direction of the heat exchange plates. The liquid inlet pipe includes a first flow channel through-hole and a liquid inlet port. The first flow channel through-hole extends through the liquid inlet pipe along its thickness direction, and the liquid inlet port is located at one end face along the length direction of the liquid inlet pipe. The liquid inlet port communicates with the first flow channel through-hole, which in turn communicates with the liquid outlets of the two adjacent heat exchange plates.

[0010] In this embodiment, the liquid inlet pipe is located between two adjacent heat exchange plates and extends along the width direction of the heat exchanger. Therefore, the liquid inlet pipe does not need to occupy space in the height direction of the heat exchanger. This makes it suitable for scenarios with limited space, saving site costs and improving space utilization, resulting in a more compact and efficient overall heat exchange system layout.

[0011] In one possible implementation, the heat exchange plate includes a first plate and a second plate, which are stacked together. A plurality of first coolant channels are provided between the first and second plates. A first boss protrudes from the surface of the first plate opposite to the surface of the second plate, and a second boss protrudes from the surface of the second plate opposite to the surface of the first plate. The first and second bosses are positioned opposite to each other. A coolant inlet passes through the first and second bosses and communicates with the first coolant channels. A first boss of one heat exchange plate is connected to a second boss of an adjacent heat exchange plate, so that the coolant inlets of two adjacent heat exchange plates are connected.

[0012] In this embodiment, the first and second protrusions of two adjacent heat exchange plates can be joined to form a confluence channel. Coolant can enter the confluence channel formed by the joining of the first and second protrusions from the inlet, thereby allowing the coolant to flow through the flow channels of the heat exchange plates and out from the outlet.

[0013] In one possible implementation, the heat exchanger further includes a liquid outlet pipe located between two adjacent heat exchange plates. The liquid outlet pipe extends along the width direction of the heat exchange plates, and the liquid outlet pipe, the first fin structure, and the liquid inlet pipe are arranged sequentially along the length direction of the heat exchange plates. The liquid outlet pipe includes a second flow channel through-hole and a liquid outlet port. The second flow channel through-hole extends through the liquid outlet pipe along its thickness direction, and the liquid outlet port is located at one end face along the length direction of the liquid outlet pipe. The liquid outlet port communicates with the second flow channel through-hole, which in turn communicates with the liquid inlets of the two adjacent heat exchange plates. Both the liquid outlet port and the liquid inlet port face one side of the heat exchange plates along their width direction.

[0014] In one possible implementation, the first fin structure includes a boss clearance opening, the orthographic projection of the boss clearance opening onto the heat exchange plate is located in the second edge region, and the first boss and second boss of two adjacent heat exchange plates are located within the boss clearance opening.

[0015] In one possible implementation, along the direction from the second edge region toward the first edge region, an inlet and a portion of the first coolant flow channel are arranged sequentially, and a portion of the first coolant flow channel and an outlet are arranged sequentially.

[0016] In this embodiment, heat exchange can be performed at all locations except for the liquid inlet and liquid outlet of the heat exchange plate, thereby increasing the effective heat exchange area of ​​the heat exchange plate.

[0017] In one possible implementation, each heat exchange plate is provided with two liquid outlets and one liquid inlet. The two liquid outlets are located at both ends of the first edge portion, and the liquid inlet is located in the middle portion of the second edge portion.

[0018] In this embodiment, the two outlets of the heat exchange plate can be located at both ends along the length of the heat exchange plate, allowing the coolant to be discharged evenly and quickly from the heat exchange plate. Furthermore, in certain situations, if one outlet pipe is blocked or malfunctions, the other outlet can serve as a backup, continuing to provide the necessary liquid medium outlet to the equipment and preventing damage due to the inability to circulate coolant.

[0019] Multiple outlets help reduce coolant resistance and flow velocity, preventing dead zones and oscillations in the pipes. This design allows for better coolant flow, thus improving heat exchange efficiency.

[0020] In one possible implementation, the heat exchanger further includes a base plate and an inlet pipe. Along the height direction of the heat exchanger in its operating state, the base plate is located at the bottom of the multi-layer heat exchange plates. The base plate includes a first sub-plate and a second sub-plate, which are stacked. The base plate has an inlet, a first outlet, and a second outlet. The inlet penetrates both the first and second sub-plates and communicates with the inlet of the heat exchange plates. The inlet pipe is connected to the side of the base plate away from the heat exchange plates, and a first flow channel through-hole of the inlet pipe communicates with the inlet. The first and second outlets penetrate the second sub-plate. The first outlet communicates with one outlet of the heat exchange plates, and the second outlet communicates with the other outlet of the heat exchange plates.

[0021] In this embodiment, coolant can enter the base plate through the inlet pipe and then flow into multiple heat exchange plates above the base plate. Under the influence of gravity, most of the coolant will first fill the base plate and then flow into the upper heat exchange plate. Similarly, from bottom to top, the coolant sequentially fills the heat exchange plates. This ensures that the heat exchange plates are fully utilized, with the coolant contacting the first or second plate, thereby increasing the heat exchange area where the coolant can exchange heat with the airflow.

[0022] In one possible implementation, the heat exchanger further includes a top plate and a liquid outlet pipe. Along the height direction of the heat exchanger in its operating state, the top plate is located on top of the multi-layer heat exchange plates. The top plate includes a third sub-plate and a fourth sub-plate, which are stacked. The third sub-plate faces the heat exchange plates and has a third outlet, a fourth outlet, and a fifth outlet. The third outlet communicates with one liquid outlet of the heat exchange plate, the fourth outlet communicates with another liquid outlet of the heat exchange plate, and the fifth outlet communicates with the liquid outlet pipe.

[0023] In this embodiment, the top plate can collect the coolant from the two outlets of the heat exchange plate so that the coolant can flow out from the outlet pipe.

[0024] In one possible implementation, each heat exchange plate has one liquid outlet and two liquid inlets, with the liquid outlet located in the middle region of the first edge portion and the two liquid inlets located at the two ends of the second edge portion, respectively.

[0025] In this embodiment, under certain circumstances, if one of the liquid inlet pipes becomes blocked or malfunctions, the other liquid inlet can serve as a backup, continuing to provide the necessary liquid medium to the equipment and preventing damage due to liquid shortage. By providing two liquid inlets, the flow rate of the liquid entering the heat exchanger can be more easily controlled and adjusted. For example, the flow rate can be changed by adjusting the opening degree of the two liquid inlets according to actual needs, thereby optimizing the heat exchange effect.

[0026] In one possible implementation, the heat exchange plate further includes a plurality of second coolant channels extending along the length of the heat exchange plate and communicating with a plurality of first coolant channels. The flow resistance of the second coolant channels is less than that of the first coolant channels.

[0027] In this embodiment, the coolant can enter from the inlet and flow along the second coolant channel. The coolant in the second coolant channel can flow along the first coolant channel, thereby filling the interior of the heat exchange plate.

[0028] In one possible implementation, the first plate includes a first body and two first bends, which are respectively bent and connected to two opposite edges of the first body along its length. The first bends extend from the first body toward a side away from the second plate. A first fin structure adjacent to a heat exchange plate is located between the two first bends.

[0029] In one possible implementation, the first plate includes a body and an edge, the edge being connected to the periphery of the body, the edge portion of the second plate being connected to the edge portion of the body, the edge covering the periphery of the second plate and being connected to the side surface of the second plate opposite to the body.

[0030] In this embodiment, the edge sealing can seal the edges of the first plate and the second plate, so that the coolant inside the heat exchange plate is not easily leaked out from the gap between the first plate and the second plate.

[0031] Secondly, this application provides a heat exchange system including a fan and a heat exchanger as described above. The fan is used to blow air onto the heat exchanger so that the air can flow along the first edge region to the second edge region of the heat exchange plate, thereby removing the heat from the heat exchange plate. Attached Figure Description

[0032] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 is a schematic diagram of the structure of a terminal device provided in an embodiment of this application;

[0034] Figure 2 is a schematic diagram of the structure of another terminal device provided in an embodiment of this application;

[0035] Figure 3 is a partial structural schematic diagram of the heat exchanger shown in Figure 1 according to a first embodiment;

[0036] Figure 4 is an exploded view of the heat exchanger shown in Figure 3;

[0037] Figure 5 is an exploded view of the heat exchange plate shown in Figure 4;

[0038] Figure 6 is a cross-sectional schematic diagram of the heat exchange plate at point AA shown in Figure 4;

[0039] Figure 7 is an exploded view of a second embodiment of the heat exchanger provided in this application;

[0040] Figure 8 is a partial structural schematic diagram of the heat exchange plate shown in Figure 7. Detailed Implementation

[0041] The specific embodiments of this application will now be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in other ways different from those described herein, and therefore, this application is not limited to these embodiments.

[0042] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0043] Multiple: refers to two or more.

[0044] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0045] The specific embodiments of this application will now be clearly described in conjunction with the accompanying drawings.

[0046] Please refer to Figure 1, which is a schematic diagram of the structure of a terminal device 100 provided in an embodiment of this application. This embodiment of the application provides a terminal device 100, which includes a heat source 10 and a heat exchange system 20. The heat exchange system 20 is used to absorb heat from the heat source 10, preventing heat accumulation in the heat source 10.

[0047] In one possible use case, the heat exchange system 20 includes a cooling plate 21, a fan 22, a drive pump 23, and a heat exchanger 30. The cooling plate 21 is used to contact the heat source 10, thereby absorbing heat from the heat source 10. The cooling plate 21 is connected to the heat exchanger 30 and the drive pump 23 via pipes. The drive pump 23 is used to circulate coolant within the heat exchange system 20. The fan 22 is used to provide airflow to remove heat from the coolant in the heat exchanger 30.

[0048] For example, the heat exchange system 20 can be a server rack, container, or data center, etc. This application does not limit the specific application scenarios of the heat exchange system 20.

[0049] The heat source 10 can be a server, baseband processing unit, battery, or power supply, etc. For example, the power supply can be a switching power supply used to rectify AC mains power into DC power to supply power to the electrical equipment. The battery includes a single cell or a battery pack, which can be used to supply power to the electrical equipment when the mains power fails. The battery can also be used in photovoltaic energy storage scenarios, storing electrical energy during the day and supplying power to the electrical equipment at night. The heat source 10 can be any device that generates accumulated heat during operation; this application does not limit the specific application scenarios of the heat source 10.

[0050] The fan 22 can provide low-temperature airflow to the heat exchanger 30, and the low-temperature airflow can carry away the heat of the heat exchanger 30.

[0051] In another possible use case, different from the previous one, please refer to Figure 2, which is a schematic diagram of another terminal device 100 provided in an embodiment of this application. The heat source 10 can be a fluid medium exchanger. The heat exchange system 20 includes a fan 22, a drive pump 23, and a heat exchanger 30. The heat exchanger 30 is connected to the fluid medium exchanger through a pipe, and the drive pump 23 is connected between the heat exchanger 30 and the fluid medium exchanger.

[0052] In this system, another cooling medium circulates within the fluid medium exchanger. This cooling medium is used to absorb heat from other heat-generating components. The coolant in the heat exchange system 20 can absorb heat from the cooling medium in the fluid medium exchanger. That is, the coolant and the other cooling medium can exchange heat in the fluid medium exchanger, thereby cooling the cooling medium and allowing it to continue circulating to absorb heat from the heat-generating components.

[0053] Currently, common heat exchangers dissipate heat through air cooling. As airflow passes through the heat exchanger, it carries away the heat. However, due to the complex structure of heat exchangers, air cooling is relatively inefficient. If the heat exchanger cannot dissipate heat in time, the ambient temperature of the terminal equipment using the heat exchanger will continuously rise, causing the equipment to malfunction.

[0054] The heat exchanger 30 provided in this application can improve heat exchange efficiency, thereby completing the heat exchange task in a shorter time and reducing energy consumption.

[0055] Please refer to Figures 3 and 4. Figure 3 is a partial structural schematic diagram of the first embodiment of the heat exchanger 30 shown in Figure 1. Figure 4 is an exploded schematic diagram of the heat exchanger 30 shown in Figure 3. The heat exchanger 30 includes heat exchange plates 31, first fin structures 32, liquid inlet pipe 33, and liquid outlet pipe 34. There are multiple heat exchange plates 31, which are stacked. There are also multiple first fin structures 32, which are alternately stacked with the multiple heat exchange plates 31. The liquid inlet pipe 33 and the liquid outlet pipe 34 are connected to the multiple heat exchange plates 31.

[0056] There are multiple heat exchange plates 31, which are stacked in the thickness direction of the heat exchanger 30. Please refer to Figure 5, which is an exploded view of the heat exchange plate 31 shown in Figure 4. The heat exchange plate 31 includes a first plate body 311, a second plate body 312, and a second fin structure 313. The first plate body 311 and the second plate body 312 are stacked. The second fin structure 313 is located between the first plate body 311 and the second plate body 312.

[0057] It should be noted that Figure 5 is only intended to schematically illustrate the connection relationship between the first plate 311, the second plate 312, and the second fin structure 313, and is not intended to specifically limit the connection positions, specific structures, or quantities of each device. Furthermore, the structures illustrated in the embodiments of this application do not constitute a specific limitation on the heat exchange plate 31. In other embodiments of this application, the heat exchange plate 31 may include more or fewer components than illustrated, or combine certain components, or split certain components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of both.

[0058] Referring to Figures 5 and 6, the first plate 311 includes a first body 3111, a first bent portion 3112, a first boss 3113, and a third boss 3114. The first body 3111 has a receiving cavity recessed from the surface of the first body 3111 towards the second plate 312. There are two first bent portions 3112, each bent and connected to two opposite edges along the length of the first body 3111. The first bent portions 3112 extend from the first body 3111 away from the second plate 312. The first boss 3113 and the third boss 3114 protrude from the first body 3111 away from the second plate 312. The first boss 3113 and the second boss are located diagonally opposite to the first body 3111. For example, the first boss 3113 and the third boss 3114 may be formed by stamping, and the side of the first boss 3113 and the third boss 3114 facing the second plate 312 may have a cavity.

[0059] The second plate 312 includes a second body 3121, a second bend 3122, a second boss 3123, and a fourth boss 3124. There can be two second bends 3122, each bent and connected to opposite edges of the second body 3121 along its length. The second bends 3122 extend from the second body 3121 away from the first body 3111. The second boss 3123 and the fourth boss 3124 protrude from the second body 3121 away from the first plate 311. The second boss 3123 and the fourth boss 3124 are located diagonally opposite the second body 3121. For example, the second boss 3123 and the fourth boss 3124 can be formed by stamping. The side of the second boss 3123 and the fourth boss 3124 facing the first plate 311 can have a cavity.

[0060] The edge portions of the first body 3111 and the edge portions of the second body 3121 are sealed together. The first boss 3113 of the first plate 311 and the second boss 3123 of the second plate 312 are positioned opposite to each other. The cavity of the first boss 3113 and the cavity of the second boss 3123 form a liquid inlet cavity. The third boss 3114 of the first plate 311 and the fourth boss 3124 of the second plate 312 are positioned opposite to each other. The cavity of the second boss 3123 and the cavity of the fourth boss 3124 form a liquid inlet cavity.

[0061] For example, please refer to Figure 6, which is a cross-sectional view of the heat exchange plate 31 at point AA shown in Figure 4. The first plate 311 also includes a third bend 3115, which can be two in number. The two third bends 3115 are respectively bent and connected to two opposite edges in the width direction of the first body 3111, and the third bends 3115 extend from the first body 3111 to the side away from the second body 3121. The height of the third bend 3115 can be less than the height of the first bend 3112. Since the third bend 3115 will block the gas passage of the first fin structure 32, it is necessary to reduce the height of the third bend 3115 to reduce the obstruction of the gas passage by the third bend 3115.

[0062] The second plate 312 may further include a fourth bend 3125, and there may be two fourth bends 3125. The two fourth bends 3125 are respectively bent and connected to two opposite edges in the width direction of the second body 3121. The fourth bends 3125 extend from the second body 3121 towards the side away from the first body 3111. The height of the fourth bend 3125 may be less than the height of the first bend 3112. Since the fourth bend 3125 will block the gas passage of the first fin structure 32, it is necessary to reduce the height of the fourth bend 3125 to reduce the obstruction of the gas passage.

[0063] The second fin structure 313 is located between the accommodating cavity of the first plate 311 and the second plate 312. Referring again to Figure 5, the second fin structure 313 can be a sheet metal stamping structure. The sheet metal part is stamped to form multiple parallel staggered groove segments 3131, with adjacent staggered groove segments 3131 spaced apart to form flow divider gaps 3132. The flow divider gaps 3132 form a second coolant flow channel 313a. The second coolant flow channel 313a extends along the length of the heat exchange plate 31. Each staggered groove segment 3131 includes multiple staggered channels 3133 connected sequentially along its own centerline, and adjacent staggered channels 3133 are staggered along a direction perpendicular to the centerline of the staggered groove segment 3131, so that each staggered channel 3133 can connect to an adjacent staggered channel 3133 and a flow divider gap 3132 located on one side of the staggered groove segment 3131. The staggered channels form a first coolant flow channel 313b. The first coolant flow channel 313b extends along the width direction of the heat exchange plate 31.

[0064] Among them, multiple second coolant flow channels 313a are connected to multiple first coolant flow channels 313b. Since the first coolant flow channels 313b are blocked by the structure of multiple staggered groove segments 3131, the flow resistance of the second coolant flow channels 313a is less than that of the first coolant flow channels 313b.

[0065] In this embodiment, the coolant can enter the heat exchange plate 31 from the inlet and flow along the second coolant flow channel 313a. The coolant in the second coolant flow channel 313a can flow along the first coolant flow channel 313b, thereby filling the interior of the heat exchange plate 31.

[0066] For example, the cross-section of the staggered groove segment 3131 can be trapezoidal, rectangular, or semi-circular, etc., which will not be listed here. The second fin structure 313 can be a segmented structure, that is, multiple second fin structures 313 are arranged in various parts of the evaporation chamber, but it is not limited to this. The second fin structure 313 can also be an integral structure, that is, a whole second fin structure 313 is provided in the evaporation chamber.

[0067] The second fin structure 313 is provided with a first clearance opening 3134 and a second clearance opening 3135. The first clearance opening 3134 and the second clearance opening 3135 can be located at diagonal positions of the second fin structure 313.

[0068] Each heat exchange plate 31 includes a first edge portion 3101 and a second edge portion 3102, which are arranged opposite to each other in the width direction of the heat exchange plate 31. The heat exchange plate 31 is provided with a liquid inlet 3103 and a liquid outlet 3104, with the liquid outlet 3104 located on the first edge portion 3101 and the liquid inlet 3103 located on the second edge portion 3102.

[0069] Along the height of the heat exchanger 30, the liquid inlet 3103 of each heat exchange plate 31 penetrates the first boss 3113 and the second boss 3123. The first boss 3113 and the second boss 3123 are both located at the second edge portion 3102 of the heat exchange plate 31. The liquid inlet 3103 communicates with the cavities of the first boss 3113 and the second boss 3123. The liquid outlet 3104 of each heat exchange plate 31 penetrates the third boss 3114 and the fourth boss 3124. The third boss 3114 and the fourth boss 3124 are both located at the first edge portion 3101 of the heat exchange plate 31, and the liquid outlet 3104 communicates with the cavities of the third boss 3114 and the fourth boss 3124.

[0070] The first clearance opening 3134 of the second fin structure 313 is correspondingly provided with the liquid inlet 3103. The second clearance opening 3135 of the second fin structure 313 is correspondingly provided with the liquid outlet 3104. The end of a portion of the first coolant flow channel 313b is connected to the liquid inlet 3103 through the first clearance opening 3134, and is arranged sequentially with the liquid inlet 3103 in the width direction of the heat exchange plate 31. The end of a portion of the second coolant flow channel 313a is connected to the liquid inlet 3103 through the first clearance opening 3134, and is arranged sequentially with the liquid inlet 3103 in the length direction of the heat exchange plate 31.

[0071] In this embodiment, since the flow resistance of the first coolant flow channel 313b is greater than that of the second coolant flow channel 313a, most of the coolant entering the heat exchange plate 31 from the inlet 3103 can first flow along the second coolant flow channel 313a, and then flow along the first coolant flow channel 313b, and then fill the interior of the heat exchange plate 31.

[0072] At least a portion of the second fin structure 313 is arranged around the liquid inlet 3103, and at least a portion of the second fin structure 313 is arranged around the liquid outlet 3104. Along the direction from the second edge portion 3102 toward the first edge portion 3101, the liquid inlet 3103 and a portion of the first coolant flow channel 313b are arranged sequentially, and the portion of the first coolant flow channel 313b and the liquid outlet 3104 are arranged sequentially.

[0073] In this embodiment, heat exchange can be performed at all locations of the heat exchange plate 31 except for the liquid inlet 3103 and the liquid outlet 3104, thereby increasing the effective heat exchange area of ​​the heat exchange plate 31.

[0074] The liquid inlets 3103 of multiple heat exchange plates 31 are connected, and the liquid outlets 3104 of multiple heat exchange plates 31 are connected. Specifically, the first boss 3113 of one heat exchange plate 31 is connected to the second boss 3123 of an adjacent heat exchange plate 31, so that the liquid inlets 3103 or liquid outlets 3104 of two adjacent heat exchange plates 31 are connected.

[0075] In this embodiment, the first boss 3113 and the second boss of two adjacent heat exchange plates 31 can be connected to form a confluence channel. Coolant can be input from the inlet 3103 into the confluence channel formed by the connection of the first boss 3113 and the second boss 3123, so that the coolant can flow through the flow channel of the heat exchange plate 31 and flow out from the outlet 3104.

[0076] The first fin structure 32 is connected between two adjacent heat exchange plates 31. The first fin structure 32 can be limited by the first bend 3112 and the third bend 3115 of the first plate 311, and the second bend 3122 and the fourth bend 3125 of the second plate 312. The first fin structure 32 is provided with multiple airflow channels. The airflow channels can extend along the width direction of the heat exchange plate 31. The airflow channels allow the airflow from the fan 22 to be blown from the first edge portion 3101 to the second edge portion 3102 of the heat exchange plate 31.

[0077] Referring again to Figure 4, the first fin structure 32 includes two boss clearance openings 321. The orthographic projection of one boss clearance opening 321 onto the heat exchange plate 31 is located at the second edge portion 3102, and the orthographic projection of the other boss clearance opening 321 onto the heat exchange plate 31 is located at the first edge portion 3101. The first boss 3113 and the second boss 3123 of two adjacent heat exchange plates 31 are located within the boss clearance openings 321.

[0078] In this embodiment, the first fin structure 32 can be arranged around the first boss 3113 and the second boss 3123. The first fin structure 32 covers the outer surface of the heat exchange plate 31 as much as possible so as to maximize the heat exchange area of ​​the heat exchange plate 31 and thereby improve the heat exchange efficiency of the heat exchange plate 31.

[0079] In this embodiment, the liquid inlet 3103 and liquid outlet 3104 of the heat exchange plate 31 are located on different sides of the heat exchange plate 31. During the air-cooling process of the heat exchanger 30, the airflow can flow through the airflow channel of the first fin structure 32. The airflow can first pass through the liquid outlet 3104 side and then flow through the liquid inlet 3103 side. Since the coolant in the heat exchange plate 31 flows from the liquid inlet 3103 to the liquid outlet 3104, the direction of the first coolant flow is opposite to the direction of the airflow.

[0080] As the coolant flows, its temperature gradually decreases from a high temperature to a low temperature, while the air flows, its temperature gradually increases from a low temperature to a high temperature. The temperature difference between the two remains relatively large. Because of this large temperature difference, the driving force for heat transfer is also greater, resulting in higher heat exchange efficiency.

[0081] Furthermore, as the relative velocity between the coolant and air increases, the amount of fluid passing through the heat exchanger 30 per unit time increases accordingly, thereby increasing the contact area and time for heat exchange and improving heat exchange efficiency. This improved heat exchange efficiency allows systems requiring heat dissipation to reach the preset temperature more quickly, thus increasing production efficiency.

[0082] Referring again to Figures 3 and 4, the liquid inlet pipe 33 is located between two adjacent heat exchange plates 31. The liquid inlet pipe 33 extends along the width direction of the heat exchange plate 31 and is arranged sequentially with the first fin structure 32 along the length direction of the heat exchange plate 31. The liquid inlet pipe 33 includes a first flow channel through hole 331 and a liquid inlet port 332. The first flow channel through hole 331 penetrates the liquid inlet pipe 33 along the thickness direction. The liquid inlet port 332 is located at one end face of the liquid inlet pipe 33 along its length direction and communicates with the first flow channel through hole 331. The first flow channel through hole 331 communicates with the liquid outlet 3104 of the two adjacent heat exchange plates 31. The liquid inlet port 332 may protrude relative to the second edge portion 3102 of the heat exchange plate 31.

[0083] In this embodiment, the liquid inlet pipe 33 is located between two adjacent heat exchange plates 31, and the liquid inlet pipe 33 extends along the width direction of the heat exchanger 30. Therefore, the liquid inlet pipe 33 does not need to occupy space in the height direction of the heat exchanger 30. This makes it suitable for scenarios with limited space, which can not only save site costs, but also improve space utilization, making the overall heat exchange system 20 more compact and efficient.

[0084] Since the liquid inlet pipe 33 requires space between two adjacent heat exchange plates 31, the second protrusion 3123 of the second plate 312 above the liquid inlet pipe 33 can protrude towards the first plate 311, and a cavity can be formed between the second protrusion 3123 and the first protrusion 3113. Similarly, the first protrusion 3113 of the first plate 311 below the liquid inlet pipe 33 can protrude towards the second plate 312, and a cavity can be formed between the first protrusion 3113 and the second protrusion 3123.

[0085] The liquid outlet pipe 34 is located between two adjacent heat exchange plates 31. The liquid outlet pipe 34 extends along the width direction of the heat exchange plate 31. Along the length direction of the heat exchange plate 31, the liquid outlet pipe 34, the first fin structure 32, and the liquid inlet pipe 33 are arranged sequentially. The liquid outlet pipe 34 includes a second flow channel through-hole 341 and a liquid outlet port 342. The second flow channel through-hole 341 penetrates the liquid outlet pipe 34 along its thickness direction. The liquid outlet port 342 is located at one end face along the length direction of the liquid outlet pipe 34 and communicates with the second flow channel through-hole 341. The second flow channel through-hole 341 communicates with the liquid inlets 3103 of the two adjacent heat exchange plates 31. The liquid outlet port 342 may protrude relative to the second edge portion 3102 of the heat exchange plate 31. Both the liquid outlet port 342 and the liquid inlet port 332 face one side along the width direction of the heat exchange plate 31.

[0086] In a second possible embodiment, please refer to FIG7, which is an exploded schematic diagram of a second embodiment of the heat exchanger 30 provided in this application.

[0087] Unlike the heat exchanger 30 in the first embodiment, the heat exchange plate 31 of the heat exchanger 30 in this embodiment is provided with two liquid outlets 3104 and one liquid inlet 3103. The two liquid outlets 3104 are located at both ends of the first edge portion 3101, and the liquid inlet 3103 is located in the middle region of the second edge portion 3102.

[0088] In this embodiment, the two liquid outlets 3104 of the heat exchange plate 31 can be discharged from both ends of the heat exchange plate 31 along its length, allowing the coolant to be discharged evenly and quickly from the heat exchange plate 31. Furthermore, in certain situations, if one of the liquid outlets 3104 becomes blocked or malfunctions, the other liquid outlet 3104 can serve as a backup, continuing to provide the necessary liquid medium outlet to the equipment and preventing damage due to the inability to circulate the coolant.

[0089] The multiple outlets (3104) design helps reduce coolant resistance and flow velocity, thus preventing dead zones and oscillations in the pipes. This design allows for better coolant flow, thereby improving heat exchange efficiency.

[0090] The heat exchanger 30 also includes a base plate 351, a top plate 352, an inlet pipe 33, and an outlet pipe 34. Along the height direction of the heat exchanger 30 in its operating state, the base plate 351 is located at the bottom of the multi-layer heat exchange plate 31. The inlet pipe 33 is located on the side of the base plate 351 opposite to the heat exchange plate 31. The top plate 352 is located at the top of the multi-layer heat exchange plate 31. The outlet pipe 34 communicates with the top plate 352.

[0091] The base plate 351 includes a first sub-plate 3511 and a second sub-plate 3512, which are stacked together. The base plate 351 has a liquid inlet 351a, a first outlet 351b, and a second outlet 351c. The liquid inlet 351a penetrates through the first sub-plate 3511 and the second sub-plate 3512. The first outlet 351b and the second outlet 351c penetrate through the second sub-plate 3512. A cavity is formed between the first sub-plate 3511 and the second sub-plate 3512. The liquid inlet 351a, the first outlet 351b, and the second outlet 351c communicate with the cavity of the base plate 351.

[0092] The liquid inlet pipe 33 is connected to the side of the base plate 351 away from the heat exchange plate 31, and the liquid inlet pipe 33 is connected to the liquid inlet 351a.

[0093] The liquid inlet 351a is connected to the liquid inlet 3103 of the heat exchange plate 31. The first outlet 351b is connected to one liquid outlet 3104 of the heat exchange plate 31, and the second outlet 351c is connected to the other liquid outlet 3104 of the heat exchange plate 31.

[0094] In this embodiment, coolant can enter the base plate 351 through the inlet pipe 33, and then flow from the base plate 351 into multiple heat exchange plates 31 above the base plate 351. Under the influence of gravity, most of the coolant will first fill the base plate 351, and then flow into the upper heat exchange plate 31. Similarly, from bottom to top, the coolant sequentially fills the heat exchange plates 31. This ensures that the heat exchange plates 31 can be fully utilized, with the coolant contacting the first or second plate of the heat exchange plate 31, thereby increasing the heat exchange area where the coolant can exchange heat with the airflow.

[0095] The top plate 352 includes a third sub-plate 3521 and a fourth sub-plate 3522. The third sub-plate 3521 and the fourth sub-plate 3522 are stacked. The third sub-plate 3521 faces the heat exchange plate 31 and has a third outlet 352a, a fourth outlet 352b, and a fifth outlet 352c. The third outlet 352a, the fourth outlet 352b, and the fifth outlet 352c all penetrate the third sub-plate 3521. The third outlet 352a is connected to one liquid outlet 3104 of the heat exchange plate 31, and the fourth outlet 352b is connected to the other liquid outlet 3104 of the heat exchange plate 31.

[0096] For example, the locations of the third outlet 352a and the fourth outlet 352b may be provided with bosses, which protrude towards the heat exchange plate 31. The outlet (third outlet 352a or fourth outlet 352b) may pass through the boss. The boss abuts against a boss (first boss 3113 or third boss 3114) of the first plate body 311 of the heat exchange plate 31, so that the outlet of the top plate 352 (third outlet 352a or fourth outlet 352b) can communicate with the liquid outlet 3104 of the heat exchange plate 31. The fifth outlet 352c is connected to the liquid outlet pipe 34.

[0097] In this embodiment, the liquid inlet 3103 of the heat exchange plate 31 adjacent to the top plate 352 can be closed. The top plate 352 can collect the coolant from the two liquid outlets 3104 of the heat exchange plate 31 so that the coolant can flow out from the liquid outlet pipe 34.

[0098] For example, the fourth sub-plate 3522 can be stamped to form multiple supports 3523, which are located between the surface of the fourth sub-plate 3522 and the third sub-plate 3521, thereby making the cavity structure of the top plate 352 formed by the fourth sub-plate 3522 and the third sub-plate 3521 more stable.

[0099] In one possible implementation, each heat exchange plate 31 has a liquid outlet 3104 and two liquid inlets 3103. The liquid outlet 3104 is located in the middle region of the first edge portion 3101, and the two liquid inlets 3103 are located at both ends of the second edge portion 3102.

[0100] In this embodiment, under certain circumstances, if one of the liquid inlet ports 3103 becomes blocked or malfunctions, the other liquid inlet port 3103 can serve as a backup, continuing to provide the necessary liquid medium to the equipment and preventing damage due to liquid shortage. By providing two liquid inlets 3103, the flow rate of the liquid entering the heat exchanger 30 can be more easily controlled and adjusted. For example, the flow rate can be changed by adjusting the opening degree of the two liquid inlets 3103 according to actual needs, thereby optimizing the heat exchange effect.

[0101] In one possible implementation, please refer to FIG8, which is a partial structural schematic diagram of the heat exchange plate 31 shown in FIG7. Unlike the heat exchange plate 31 of the first embodiment, the second plate body 312 of the heat exchange plate 31 may include a body 312a and an edge 312b. The edge 312b is connected to the periphery of the body 312a, the edge portion of the first plate body 311 is connected to the edge portion of the body 312a, and the edge 312b covers the periphery of the first plate body 311 and is connected to the side surface of the first plate body 311 opposite to the body 312a.

[0102] In this embodiment, the edge banding 312b can seal the edges of the first plate 311 and the second plate 312 so that the coolant inside the heat exchange plate 31 is less likely to overflow from the gap between the first plate 311 and the second plate 312.

[0103] The above are exemplary embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A heat exchanger, characterized by, include: A heat exchange plate, wherein there are multiple heat exchange plates stacked in the thickness direction, each heat exchange plate includes a first edge portion and a second edge portion, the first edge portion and the second edge portion being arranged opposite to each other in the width direction of the heat exchange plate, the heat exchange plate having a liquid inlet and a liquid outlet, the liquid outlet being located in the first edge portion and the liquid inlet being located in the second edge portion, the liquid inlets of the multiple heat exchange plates being connected, the liquid outlets of the multiple heat exchange plates being connected, and a first coolant flow channel being provided inside the heat exchange plate, the first coolant flow channel extending along the width direction of the heat exchange plate to allow coolant to flow from the second edge portion to the first edge portion; The first fin structure is a plurality of the first fin structures, one of which is connected between two adjacent heat exchange plates. The first fin has a plurality of airflow channels, which extend from the first edge portion to the second edge portion. Airflow can flow along the airflow channels in the direction from the first edge portion to the second edge portion.

2. The heat exchanger of claim 1, wherein The heat exchanger also includes a liquid inlet pipe, which is located between two adjacent heat exchange plates. The liquid inlet pipe extends along the width direction of the heat exchange plate and is arranged sequentially with the first fin structure along the length direction of the heat exchange plate. The liquid inlet pipe includes a first flow channel through hole and a liquid inlet port. The first flow channel through hole extends through the liquid inlet pipe along its thickness direction. The liquid inlet port is located at one end face of the liquid inlet pipe along its length direction. The liquid inlet port communicates with the first flow channel through hole and the first flow channel through hole communicates with the liquid outlets of two adjacent heat exchange plates.

3. The heat exchanger of claim 2, wherein The heat exchange plate includes a first plate and a second plate, which are stacked together. A plurality of first coolant channels are provided between the first plate and the second plate. A first boss is provided on the surface of the first plate away from the second plate, and a second boss is provided on the surface of the second plate away from the first plate. The first boss and the second boss are arranged opposite to each other. The liquid inlet passes through the first boss and the second boss and communicates with the first coolant channels. A first boss of one of the heat exchange plates is connected to a second boss of an adjacent heat exchange plate so that the liquid inlets of the two adjacent heat exchange plates are connected.

4. The heat exchanger of claim 3, wherein The first fin structure includes a boss clearance opening, the orthogonal projection of the boss clearance opening onto the heat exchange plate is located at the second edge portion, and the first boss and the second boss of two adjacent heat exchange plates are located within the boss clearance opening.

5. The heat exchanger of claim 4, wherein Along the direction from the second edge portion toward the first edge portion, the liquid inlet and a portion of the first coolant flow channel are arranged sequentially, and the portion of the first coolant flow channel and the liquid outlet are arranged sequentially.

6. The heat exchanger according to claim 2 or 3, characterized in that The heat exchanger also includes a liquid outlet pipe, which is located between two adjacent heat exchange plates. The liquid outlet pipe extends along the width direction of the heat exchange plate and along the length direction of the heat exchange plate. The liquid outlet pipe, the first fin structure, and the liquid inlet pipe are arranged in sequence. The liquid outlet pipe includes a second flow channel through hole and a liquid outlet port. The second flow channel through hole extends through the liquid outlet pipe along the thickness direction. The liquid outlet port is located at one end face of the liquid outlet pipe along its length direction. The liquid outlet port communicates with the second flow channel through hole. The second flow channel through hole communicates with the liquid inlets of two adjacent heat exchange plates. Both the liquid outlet port and the liquid inlet port face one side of the heat exchange plate in the width direction.

7. The heat exchanger of claim 1, wherein Each heat exchange plate is provided with two liquid outlets and one liquid inlet. The two liquid outlets are located at both ends of the first edge portion, and the liquid inlet is located in the middle portion of the second edge portion.

8. The heat exchanger of claim 2, wherein The heat exchanger also includes a base plate and an inlet pipe. Along the height direction of the heat exchanger in its operating state, the base plate is located at the bottom of the multiple layers of heat exchange plates. The base plate includes a first sub-plate and a second sub-plate, which are stacked together. The base plate has a liquid inlet, a first outlet, and a second outlet. The liquid inlet penetrates the first sub-plate and the second sub-plate and is connected to the liquid inlet of the heat exchange plate. The liquid inlet pipe is connected to the side of the base plate away from the heat exchange plate, and the first flow channel through hole of the liquid inlet pipe is connected to the liquid inlet. The first outlet and the second outlet penetrate the second sub-plate. The first outlet is connected to one of the liquid outlets of the heat exchange plate, and the second outlet is connected to the other liquid outlet of the heat exchange plate.

9. The heat exchanger of claim 8, wherein, The heat exchanger also includes a top plate and a liquid outlet pipe. Along the height direction of the heat exchanger in its operating state, the top plate is located at the top of the multiple layers of heat exchange plates. The top plate includes a third sub-plate and a fourth sub-plate, which are stacked together. The third sub-plate faces the heat exchange plate and has a third outlet, a fourth outlet and a fifth outlet. The third outlet is connected to one of the liquid outlets of the heat exchange plate, the fourth outlet is connected to the other liquid outlet of the heat exchange plate, and the fifth outlet is connected to the liquid outlet pipe.

10. The heat exchanger of claim 1, wherein Each heat exchange plate has one liquid outlet and two liquid inlets. The liquid outlet is located in the middle region of the first edge portion, and the two liquid inlets are located at the two ends of the second edge portion, respectively.

11. The heat exchanger according to any one of claims 1-5, 7-10, characterized in that The heat exchange plate also includes a plurality of second coolant channels, which extend along the length of the heat exchange plate and are connected to a plurality of first coolant channels. The flow resistance of the second coolant channels is less than that of the first coolant channels.

12. The heat exchanger of claim 3, wherein The first plate includes a first body and two first bends, the two first bends being bent and connected to two opposite edges of the first body in the length direction, and the first bends extending from the first body to the side away from the second plate. One of the first fin structures adjacent to the heat exchange plate is located between the two first bends.

13. The heat exchanger of claim 3, wherein The second plate includes a body and an edge. The edge is connected to the periphery of the body, and the edge portion of the first plate is connected to the edge portion of the body. The edge covers the periphery of the second plate and is connected to the surface of the first plate opposite to the body.

14. A heat exchange system, characterized by, The heat exchange system includes a fan and a heat exchanger as described in any one of claims 1-13, wherein the fan is used to blow air onto the heat exchanger so that air can flow along the first edge region of the heat exchange plate to the second edge region, thereby removing heat from the heat exchange plate.

Images