Crossed tooth mixed cooling heat dissipation structure

Abstract

The application relates to a cross-tooth mixed cooling heat dissipation structure, which comprises a shell; a first flow channel area and a second flow channel area which are not overlapped in space are arranged in the shell; the first flow channel area comprises a plurality of first teeth; the first teeth extend along a first direction, so that a first cooling liquid flow channel is formed between adjacent first teeth; the second flow channel area comprises a plurality of second teeth; the second teeth extend along a second direction, so that a second cooling liquid flow channel is formed between adjacent second teeth; the first flow channel area and the second flow channel area are communicated, and the first direction and the second direction cross each other. The application can improve the pressure bearing capacity of the cooling heat dissipation structure and the uniformity of temperature distribution.

Description

Technical Field

[0001] This application relates to the field of heat exchange structure technology, and in particular to a cross-tooth hybrid cooling and heat dissipation structure. Background Technology

[0002] Toothed heat dissipation structures are widely used in liquid cooling heat sinks for high-power electronic devices and power electronic equipment. In existing toothed heat dissipation structures, the teeth mainly extend in a single direction, such as the length of the substrate, which leads to problems such as poor pressure resistance and poor temperature distribution uniformity.

[0003] Specifically, the shovel teeth extend only in a single direction. This means that the shovel teeth can only provide good support in their extension direction, not in the direction perpendicular to the extension direction. Furthermore, there is a lack of effective connection or support structure between adjacent shovel teeth, significantly reducing their pressure-bearing capacity. On the other hand, the flow channel formed between adjacent shovel teeth also extends only in this single direction. As the coolant flows within the flow channel, it continuously absorbs heat, causing the coolant temperature to gradually increase along the flow direction. This results in a lower temperature near the flow channel inlet and a higher temperature near the outlet, creating distinct "cold ends" and "hot ends" in the heat dissipation structure, leading to a severely uneven temperature distribution throughout the entire heat dissipation system.

[0004] Therefore, there is a need for a cross-tooth hybrid cooling and heat dissipation structure that can improve pressure resistance and temperature distribution uniformity. Summary of the Invention

[0005] Therefore, it is necessary to provide a cross-tooth hybrid cooling and heat dissipation structure, the specific technical solution of which is as follows.

[0006] A cross-tooth hybrid cooling and heat dissipation structure includes a housing; the housing has a first flow channel region and a second flow channel region that do not overlap spatially. The first flow channel region includes a plurality of first shovel teeth; the first shovel teeth extend along a first direction, forming a first coolant flow channel between adjacent first shovel teeth; at least one first coolant flow channel constitutes a first flow channel sub-region, and the first flow channel region includes the first flow channel sub-region. The second flow channel region includes a plurality of second shovel teeth; the second shovel teeth extend along a second direction, forming a second coolant flow channel between adjacent second shovel teeth; at least one second coolant flow channel constitutes a second flow channel sub-region, and the second flow channel region includes the second flow channel sub-region; a plurality of first flow channel sub-regions and a plurality of second flow channel sub-regions are arranged alternately along one direction; The housing includes a substrate and a cover plate, and the housing has a first layer space and a second layer space arranged in a stacked manner; the first layer space and the second layer space are located within the space enclosed by the substrate and the cover plate, and the first flow channel sub-region and the second flow channel sub-region are respectively located within the first layer space; The second layer space is provided with baffles and partitions; the baffles are connected to the first shovel teeth to close off the first flow channel sub-region, so that the first flow channel sub-region is not directly connected to the second layer space; the partitions separate the second layer space to form multiple spaced-apart connected regions; adjacent second flow channel sub-regions are connected through the connected regions. The first flow channel region and the second flow channel region are connected end to end, so that the coolant traverses the first flow channel region before entering the second flow channel region, and the first direction and the second direction intersect.

[0007] Furthermore, the first flow channel region also includes a first transition area; the flow path ends of each of the first flow channel sub-regions are respectively connected to the first transition area; The second flow channel region also includes a second transition area; each of the second flow channel sub-regions is connected end to end in sequence, and the second transition area is connected to the second flow channel sub-region at the beginning; The first transfer area is connected to the second transfer area.

[0008] Furthermore, the housing is provided with a first liquid inlet and a first liquid outlet; The first flow channel region also includes a liquid inlet area; the beginning of the flow path of each of the first flow channel sub-regions is connected to the liquid inlet area, and the first liquid inlet is connected to the liquid inlet area; The second flow channel region also includes a liquid outlet region; the liquid outlet region is connected to the second flow channel sub-region at the tail end, and the first liquid outlet is connected to the liquid outlet region.

[0009] Furthermore, the width of the partition plate is less than the length of the flow path in the second flow channel sub-region, so that jet holes are formed between the two ends of the second flow channel sub-region and the connecting region, respectively.

[0010] Furthermore, the first layer of space is close to the heat source.

[0011] Furthermore, the housing is provided with a first liquid inlet, and the first flow channel region further includes a liquid inlet area and a first transition area. The beginning of the flow path of each of the first flow channel sub-regions is connected to the liquid inlet area and the end of the flow path is connected to the first transition area. The second flow channel region further includes a second transition area, which is connected to the first transition area, and the first liquid inlet is connected to the liquid inlet area. The second layer space is separated from the liquid inlet area and the first transfer area by a baffle plate; the cover plate, the baffle plate and the baffle plate near the second transfer area together define the liquid inlet and outlet; the length of the liquid inlet is basically the same as the length of the first coolant flow channel, and the height of the liquid inlet is basically the same as the height of the baffle plate.

[0012] A cross-tooth hybrid cooling and heat dissipation structure includes a housing; the housing is provided with a relatively independent first flow channel region and a second flow channel region; The first flow channel region includes a plurality of first shovel teeth; the first shovel teeth extend along a first direction, so that a first coolant flow channel is formed between adjacent first shovel teeth; The second flow channel region includes a plurality of second shovel teeth; the second shovel teeth extend along a second direction, forming a second coolant flow channel between adjacent second shovel teeth, the first direction intersecting the second direction; The housing is provided with a second liquid inlet, a third liquid inlet, a second liquid outlet, and a third liquid outlet; the first flow channel region is connected to the second liquid inlet and the second liquid outlet respectively; the second flow channel region is connected to the third liquid inlet and the third liquid outlet respectively.

[0013] Beneficial effects: The cross-tooth hybrid cooling and heat dissipation structure provided by the present invention is provided with first and second teeth extending in different directions, thereby forming pressure-bearing structures in different directions and improving the pressure-bearing capacity of the cooling and heat dissipation structure; by setting the first and second flow channel areas that do not overlap in space, the coolant does not flow in a single direction, but flows to different areas in different directions, avoiding the formation of obvious cold and hot ends, improving the uniformity of temperature distribution, thereby improving heat dissipation efficiency and avoiding thermal stress caused by large temperature differences between cold and hot ends. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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 based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the cooling and heat dissipation structure in Example 1; Figure 2 This is a schematic diagram of the cooling and heat dissipation structure after the cover plate is hidden in Example 1; Figure 3 This is a schematic diagram showing the distribution of the first and second shovel teeth in Example 1; Figure 4This is a schematic diagram of the coolant flow path in Example 1; Figure 5 This is a schematic diagram of the cooling and heat dissipation structure in Example 2; Figure 6 This is a schematic diagram of the cooling and heat dissipation structure after the cover plate is hidden in Example 2.

[0016] Explanation of reference numerals in the attached drawings: 1. Shell; 2. First flow channel region; 3. Second flow channel region; 11. Substrate; 12. Cover plate; 13. First liquid inlet; 14. First liquid outlet; 15. First layer space; 16. Second layer space; 17. Baffle; 18. Partition plate; 19. Flow barrier plate; 10. Liquid inlet; 101. Second liquid inlet; 102. Second liquid outlet; 103. Third liquid inlet; 104. Third liquid outlet; 21. First shovel tooth; 22. First coolant flow channel; 23. First flow channel sub-region; 24. First transition area; 25. Coolant inlet area; 31. Second shovel tooth; 32. Second coolant flow channel; 33. Second flow channel sub-region; 34. Second transition area; 35. Coolant outlet area. Detailed Implementation

[0017] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0018] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Example 1 Reference Figures 1-4 As shown, this embodiment provides a cross-tooth hybrid cooling and heat dissipation structure, including a housing 1. In this embodiment, the housing 1 is divided into a substrate 11 and a cover plate 12, and the substrate 11 and the cover plate 12 are separate structures. In other embodiments, the substrate 11 and the cover plate 12 can also be an integral structure, fabricated using additive manufacturing technology.

[0024] Reference Figure 2As shown, a first flow channel region 2 and a second flow channel region 3 that do not overlap spatially are provided inside the housing 1, so that the coolant flows in the first flow channel region 2 and the second flow channel region 3 respectively in a preset flow direction, and no crossflow occurs between the first flow channel region 2 and the second flow channel region 3.

[0025] Reference Figure 2 and Figure 3 As shown, the first flow channel region 2 includes a plurality of first shovel teeth 21, which extend along a first direction, forming a first coolant flow channel 22 between adjacent first shovel teeth 21. Within the first flow channel region 2, coolant flows within the first coolant flow channel 22 defined by the first shovel teeth 21, that is, coolant flows along the first direction.

[0026] The second flow channel region 3 includes a plurality of second shovel teeth 31, which extend along a second direction, forming a second coolant flow channel 32 between adjacent second shovel teeth 31. Within the second flow channel region 3, coolant flows within the second coolant flow channel 32 defined by the second shovel teeth 31, that is, coolant flows along the second direction.

[0027] The first flow channel region 2 is connected to the second flow channel region 3, and the first direction and the second direction intersect. This causes the first shovel teeth 21 and the second shovel teeth 31 to extend in different directions, thereby improving the pressure-bearing capacity of the cooling and heat dissipation structure in different directions. Because of the improved pressure-bearing capacity, the thickness of the cooling and heat dissipation structure can be reduced, thereby lowering thermal resistance and further improving heat dissipation capacity.

[0028] The coolant flows through the first flow channel region 2 and then into the second flow channel region 3, and flows in different directions in different regions to avoid the cold end and hot end phenomenon caused by a single flow direction, thereby improving the uniformity of temperature distribution.

[0029] The cross-tooth hybrid cooling and heat dissipation structure provided in this embodiment is provided with first tooth 21 and second tooth 31 extending in different directions, thereby forming a pressure-bearing structure in different directions and improving the pressure-bearing capacity of the cooling and heat dissipation structure; by setting the first flow channel region 2 and the second flow channel region 3 that do not overlap in space, the coolant does not flow in a single direction, but flows in different directions to different regions, avoiding the formation of obvious cold end and hot end, improving the uniformity of temperature distribution, thereby improving heat dissipation efficiency and avoiding thermal stress caused by a large temperature difference between the cold end and the hot end.

[0030] In one embodiment, the first flow channel region 2 and the second flow channel region 3 are connected end to end, allowing the coolant to traverse the first flow channel region 2 before entering the second flow channel region 3. The coolant gradually accumulates heat along its flow path. After accumulating heat in the first flow channel region 2, the coolant flows into the second flow channel region 3. Because the first shovel teeth 21 and the second shovel teeth 31 extend in different directions, the hot flow region and the cold flow region come into cross contact, allowing heat from the higher temperature region to diffuse to the lower temperature region, reducing the maximum temperature of the cooling structure and making the temperature of the cooling structure more uniform.

[0031] In one embodiment, a first flow channel sub-region 23 is formed by at least one first coolant flow channel 22, meaning the first flow channel sub-region 23 includes one or more first coolant flow channels 22. The first flow channel region 2 includes multiple first flow channel sub-regions 23. A second flow channel sub-region 33 is formed by at least one second coolant flow channel 32, meaning the second flow channel sub-region 33 includes one or more second coolant flow channels 32. The second flow channel region 3 includes multiple second flow channel sub-regions 33. The multiple first flow channel sub-regions 23 and the multiple second flow channel sub-regions 33 are arranged alternately in one direction.

[0032] When the coolant flows, it first flows in the first direction, traversing each of the first flow channel sub-regions 23; then it flows in the second direction, traversing each of the second flow channel sub-regions 33. Therefore, there is a temperature difference between the coolant in the first flow channel sub-regions 23 and the second flow channel sub-regions 33 due to the different lengths of the flow paths. This causes the first flow channel sub-regions 23 and the second flow channel sub-regions 33 to be arranged alternately, thereby transferring heat from the higher-temperature second flow channel sub-regions 33 to the lower-temperature first flow channel sub-regions 23, reducing the maximum temperature of the cooling and heat dissipation structure, and making the temperature of the cooling and heat dissipation structure more uniform.

[0033] In one embodiment, the alternating arrangement of the first flow channel sub-region 23 and the second flow channel sub-region 33 is perpendicular to the first direction. This allows for better heat transfer between the respective first flow channel sub-regions 23 and the respective second flow channel sub-regions 33, improving the uniformity of temperature distribution.

[0034] In one embodiment, the first direction is perpendicular to the second direction, that is, the extension directions of the first shovel tooth 21 and the second shovel tooth 31 are perpendicular. This makes the processing of the first shovel tooth 21 and the second shovel tooth 31 easier, and the vertical arrangement of the first shovel tooth 21 and the second shovel tooth 31 can make the pressure-bearing capacity more uniform, further optimizing the pressure-bearing effect.

[0035] In one embodiment, reference Figure 2As shown, the first flow channel region 2 also includes a first transition zone 24; the ends of the flow paths of each first flow channel sub-region 23 are respectively connected to the first transition zone 24. The second flow channel region 3 also includes a second transition zone 34; each second flow channel sub-region 33 is connected end to end in sequence, and the second transition zone 34 is connected to the first second flow channel sub-region 33. The first transition zone 24 and the second transition zone 34 are connected. This allows the coolant in each first flow channel sub-region 23 to collect in the first transition zone 24, and then flow through the second transition zone 34 to the second flow channel sub-region 33, so that the coolant undergoes a mixing and temperature equalization process before flowing into the second flow channel sub-region 33, further improving the uniformity of temperature distribution.

[0036] In one embodiment, the first transition area 24 and the second transition area 34 are respectively arranged on the edge of the housing 1, so that the first transition area 24 and the second transition area 34 form an L-shape. On the one hand, this facilitates the processing of the transition area; on the other hand, areas with greater heat dissipation requirements are generally located in the middle, and placing the transition area on the edge avoids affecting the heat dissipation effect of the middle area, thereby improving the overall heat dissipation performance.

[0037] In one embodiment, reference Figure 1 As shown, the housing 1 is provided with a first liquid inlet 13 and a first liquid outlet 14. (Refer to...) Figure 2 As shown, the first flow channel region 2 also includes an inlet region 25; the flow path ends of each first flow channel sub-region 23 are connected to the inlet region 25, and the first inlet port 13 is connected to the inlet region 25. This allows the coolant to enter the inlet region 25 through the first inlet port 13. Since the first flow channel sub-region 23 and the second flow channel sub-region 33 are arranged alternately, only the first coolant flow channel 22 is directly connected to the inlet region 25, while the second coolant flow channel 32 is isolated from the inlet region 25. This effectively reduces the number of flow channels connected to the inlet region 25, thereby increasing the flow rate distributed from the inlet region 25 to each first coolant flow channel 22, increasing the coolant velocity in the first coolant flow channel 22, and thus improving heat dissipation capacity.

[0038] The second flow channel region 3 also includes a liquid outlet region 35; the liquid outlet region 35 is connected to the second flow channel sub-region 33 at the tail end, and the first liquid outlet 14 is connected to the liquid outlet region 35. (Refer to...) Figure 4 As shown, the coolant flows from the inlet area 25 to the first flow channel sub-region 23, then gathers in the first transfer area 24 and the second transfer area 34, flows from the second transfer area 34 to the second flow channel sub-region 33, and finally flows out of the cooling and heat dissipation structure from the first outlet 14 through the outlet area 35.

[0039] In one embodiment, a first layer space 15 and a second layer space 16 are provided in the housing 1 in a stacked arrangement. The first flow channel sub-region 23 and the second flow channel sub-region 33 are respectively located in the first layer space 15.

[0040] The second-layer space 16 is equipped with a baffle 17 and a partition plate 18; the baffle 17 is connected to the first shovel tooth 21 to close off the first flow channel sub-region 23, so that the first flow channel sub-region 23 is not directly connected to the second-layer space 16. This avoids crossflow between the first flow channel region 2 and the second flow channel region 3.

[0041] The partition plate 18 divides the second-layer space 16, forming multiple interconnected regions arranged at intervals; adjacent second flow channel sub-regions 33 are connected through the interconnected regions. This defines the flow path, allowing the coolant to sequentially traverse each second flow channel sub-region 33.

[0042] It should be noted that the second-layer space 16 is separated from the inlet area 25 and the first transition area 24 by a baffle plate 19. Baffle plates 19 are provided at both ends of the baffle 17 along the first direction to cooperate with the inner wall of the housing 1 to block the channel from the inlet area 25 or the first transition area 24 directly into the second-layer space 16, thereby increasing the flow path of the coolant and preventing cross-flow. There are multiple baffle plates 17, which are connected to the first flow channel sub-region 23 to close the first flow channel sub-region 23, preventing direct communication between the first flow channel sub-region 23 and the second-layer space 16. The cover plate 12, the baffle 17 near the second transition area 34, and the baffle plates 19 at both ends of the baffle 17 together define the inlet / outlet port 10. The length of the inlet port 10 is approximately the same as the length of the first coolant flow channel 22, and the height of the inlet port 10 is approximately the same as the height of the baffle plate 19. In this way, the coolant can enter the second space 16 from the first space 15 at a larger flow rate, thereby improving heat dissipation efficiency. Specifically, the inlet 10 is the inlet for the coolant to enter the second space 16 from the first space 15 through the second transfer zone 34.

[0043] Please continue to refer to Figure 4 After the coolant enters the housing 1 through the first inlet 13, it first flows in the first layer space 15. Specifically, it flows through the first flow channel sub-region 23 and merges into the first transfer area 24, then continues to flow to the second transfer area 34, and then rises to the second layer space 16. It then descends to the first layer space 15 through the second flow channel sub-region 33 on one side of the partition plate 18, and then rises to the second layer space 16 through the second flow channel sub-region 33 on the other side of the partition plate 18. Finally, it flows out of the cooling and heat dissipation structure from the first outlet 14 through the outlet area 35.

[0044] The flow path of the coolant is in Figure 4 The diagram uses arrowed lines to illustrate the flow path, with visible areas marked by solid lines and invisible areas by dashed lines. It should be noted that this flow path is for illustrative purposes only and should not be construed as limiting the scope of this application.

[0045] In one embodiment, the partition plate 18 is disposed on the second shovel tooth 31 and directly abuts against the second shovel tooth 31, such that the width of the partition plate 18 is less than the length of the flow path of the second flow channel sub-region 33, that is, the width of the partition plate 18 is less than the length of the second shovel tooth 31, thereby forming jet holes between the two ends of the second flow channel sub-region 33 and the connecting region. This allows the coolant to flow in a jet manner between the second coolant flow channel 32 and the connecting region, increasing the turbulence of the fluid. When impacting the heated surface, it can reduce the thermal boundary layer thickness and enhance the heat transfer capacity.

[0046] In one embodiment, the first layer space 15 is located close to the heat source. This allows the first flow channel sub-region 23 and the second flow channel sub-region 33 to be located within the first layer space 15, enabling efficient heat transfer with the heat source and improving heat dissipation.

[0047] Example 2 Reference Figures 5-6 As shown, this embodiment provides a cross-tooth hybrid cooling and heat dissipation structure, including a housing 1. In this embodiment, the housing 1 is divided into a substrate 11 and a cover plate 12, and the substrate 11 and the cover plate 12 are separate structures. In other embodiments, the substrate 11 and the cover plate 12 can also be an integral structure, fabricated using additive manufacturing technology.

[0048] Reference Figure 6 As shown, the housing 1 has a relatively independent first flow channel region 2 and a second flow channel region 3, so that the coolant flows in the first flow channel region 2 and the second flow channel region 3 respectively in a preset flow direction, and no crossflow occurs between the first flow channel region 2 and the second flow channel region 3.

[0049] Reference Figure 6 As shown, the first flow channel region 2 includes a plurality of first shovel teeth 21, which extend along a first direction, forming a first coolant flow channel 22 between adjacent first shovel teeth 21. Within the first flow channel region 2, coolant flows within the first coolant flow channel 22 defined by the first shovel teeth 21, that is, coolant flows along the first direction.

[0050] The second flow channel region 3 includes a plurality of second shovel teeth 31, which extend along a second direction and intersect with the first direction, so that a second coolant flow channel 32 is formed between adjacent second shovel teeth 31. Within the second flow channel region 3, coolant flows within the second coolant flow channel 32 defined by the second shovel teeth 31, that is, coolant flows along the second direction.

[0051] The first shovel tooth 21 and the second shovel tooth 31 extend in different directions, thereby improving the pressure-bearing capacity of the cooling and heat dissipation structure in different directions. Because of the improved pressure-bearing capacity, the thickness of the cooling and heat dissipation structure can be reduced, thereby lowering thermal resistance and further improving heat dissipation capacity.

[0052] The coolant flows in different directions in the first flow channel region 2 and the second flow channel region 3, avoiding the cold end and hot end phenomenon caused by a single flow direction, thereby improving the uniformity of temperature distribution.

[0053] The difference between this embodiment and Embodiment 1 is that a two-inlet, two-outlet structure is formed in this embodiment, and the first flow channel region 2 and the second flow channel region 3 are not connected to each other. Specifically, refer to... Figure 5 As shown, the housing 1 is provided with a second liquid inlet 101, a third liquid inlet 103, a second liquid outlet 102, and a third liquid outlet 104. The first flow channel region 2 and the second flow channel region 3 are relatively independent within the housing 1; the first flow channel region 2 is connected to the second liquid inlet 101 and the second liquid outlet 102 respectively; the second flow channel region 3 is connected to the third liquid inlet 103 and the third liquid outlet 104 respectively.

[0054] The cross-tooth hybrid cooling and heat dissipation structure provided in this embodiment makes the first flow channel region 2 and the second flow channel region 3 completely independent, and the flow rates of the two flow paths can be arbitrarily set according to the operating conditions. It also ensures that the coolant flows not only in the second direction but also in the first direction within the second flow channel region 3, which helps to mix and transfer heat between hot and cold flows, resulting in a more uniform temperature.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cross-tooth hybrid cooling and heat dissipation structure, characterized in that, Includes a housing; the housing contains a first flow channel region and a second flow channel region that do not overlap spatially; The first flow channel region includes a plurality of first shovel teeth; the first shovel teeth extend along a first direction, forming a first coolant flow channel between adjacent first shovel teeth; at least one first coolant flow channel constitutes a first flow channel sub-region, and the first flow channel region includes the first flow channel sub-region. The second flow channel region includes a plurality of second shovel teeth; the second shovel teeth extend along a second direction, forming a second coolant flow channel between adjacent second shovel teeth; at least one second coolant flow channel constitutes a second flow channel sub-region, and the second flow channel region includes the second flow channel sub-region; a plurality of first flow channel sub-regions and a plurality of second flow channel sub-regions are arranged alternately along one direction; The housing includes a substrate and a cover plate, and the housing has a first layer space and a second layer space arranged in a stacked manner; the first layer space and the second layer space are located within the space enclosed by the substrate and the cover plate, and the first flow channel sub-region and the second flow channel sub-region are respectively located within the first layer space; The second layer space is provided with baffles and partitions; the baffles are connected to the first shovel teeth to close off the first flow channel sub-region, so that the first flow channel sub-region is not directly connected to the second layer space; the partitions separate the second layer space to form multiple spaced-apart connected regions; adjacent second flow channel sub-regions are connected through the connected regions. The first flow channel region and the second flow channel region are connected end to end, so that the coolant traverses the first flow channel region before entering the second flow channel region, and the first direction and the second direction intersect.

2. The cross-tooth hybrid cooling and heat dissipation structure according to claim 1, characterized in that, The first flow channel region also includes a first transition area; the flow path ends of each of the first flow channel sub-regions are respectively connected to the first transition area; The second flow channel region also includes a second transition area; each of the second flow channel sub-regions is connected end to end in sequence, and the second transition area is connected to the second flow channel sub-region at the beginning; The first transfer area is connected to the second transfer area.

3. The cross-tooth hybrid cooling and heat dissipation structure according to claim 2, characterized in that, The housing is provided with a first liquid inlet and a first liquid outlet; The first flow channel region also includes a liquid inlet area; the beginning of the flow path of each of the first flow channel sub-regions is connected to the liquid inlet area, and the first liquid inlet is connected to the liquid inlet area; The second flow channel region also includes a liquid outlet region; the liquid outlet region is connected to the second flow channel sub-region at the tail end, and the first liquid outlet is connected to the liquid outlet region.

4. The cross-tooth hybrid cooling and heat dissipation structure according to claim 1, characterized in that, The width of the partition plate is less than the length of the flow path in the second flow channel sub-region, so that jet holes are formed between the two ends of the second flow channel sub-region and the connecting region, respectively.

5. The cross-tooth hybrid cooling and heat dissipation structure according to claim 1, characterized in that, The first layer of space is close to the heat source.

6. The cross-tooth hybrid cooling and heat dissipation structure according to claim 1, characterized in that, The housing is provided with a first liquid inlet, and the first flow channel region further includes a liquid inlet area and a first transfer area. The beginning of the flow path of each of the first flow channel sub-regions is connected to the liquid inlet area and the end of the flow path is connected to the first transfer area. The second flow channel region further includes a second transfer area, which is connected to the first transfer area, and the first liquid inlet is connected to the liquid inlet area. The second layer space is separated from the liquid inlet area and the first transfer area by a baffle plate; the cover plate, the baffle plate and the baffle plate near the second transfer area together define the liquid inlet and outlet; the length of the liquid inlet is basically the same as the length of the first coolant flow channel, and the height of the liquid inlet is basically the same as the height of the baffle plate.

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