Novel liquid cooling plate for new energy vehicle

Abstract

The invention discloses a novel liquid cooling plate for a new energy vehicle. The novel liquid cooling plate passes through a main side flow channel of a flow channel of cooling liquid; the main runner extends along the inner cavity; the side runner is along the side wall of the inner cavity; when entering the main flow channel, cooling liquid sequentially passes through the rhombic turbulent flow column modules, the flow divider, the oval turbulent flow column modules and the circular turbulent flow column modules to flow out. The rhombic modules are turbulent flow columns on which a plurality of rhombic columns are uniformly distributed; the elliptical module is a turbulent flow column on which a plurality of elliptical cylinders are uniformly distributed; the circular module is provided with a plurality of cylindrical turbulent flow columns, and a plurality of triangular flow guide plates are arranged among the cylindrical turbulent flow columns; the side main runners are communicated through the through holes; the liquid inlet and the liquid outlet are provided with slope surfaces with inclination in advance, and liquid flows from the high positions of the slope surfaces to the low positions of the slope surfaces. By arranging different heat dissipation modules, the purpose of improving the cooling efficiency is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery heat dissipation, and in particular to a new liquid cooling plate for new energy vehicles. Background Art

[0002] Traditional liquid cooling plates are mainly made of aluminum alloy, copper and other materials. Under normal conditions, they can meet the needs of liquid cooling. However, the thermal conductivity of conventional materials is low, which seriously restricts its efficient heat dissipation in high heat flux density environments. Under high heat flux density conditions, the thermal conductivity of liquid cooling medium is low, making it difficult to achieve fast and efficient heat transfer and diffusion, which restricts the improvement of the overall heat dissipation capacity of the liquid cooling system. As a result, various forms of liquid cooling plates have emerged, such as serpentine heat spreaders with fins, which extend their flow channels and indeed improve a lot of heat transfer efficiency; there are also spoiler columns distributed throughout the flow channel, and their heat dissipation effect is also improved. However, in this similar design, the liquid cooling plate also has many problems that need to be solved: 1. Uneven heat dissipation: The heat dissipation is more obvious in the middle part of the liquid cooling plate flow channel, but there is a higher temperature difference on both sides and corners. The heat dissipation efficiency of the entire liquid cooling system is reduced due to the lack of obvious heat dissipation effect in some areas. 2. Too fast or too slow flow rate: Too fast or too slow flow rate of the coolant in the flow channel is not conducive to the heat dissipation effect of the liquid cooling system. In general, traditional liquid cooling plates not only have the problem of thermal conductivity limitation but also have the disadvantage of uneven heat dissipation. It is difficult to achieve the expected effect in high heat flux density scenarios, and the liquid cooling system faces challenges.

[0003] The prior art publication number CN116231216A discloses a liquid cooling plate for cooling a power battery of an automobile, in which a serpentine flow channel is provided inside the cooling plate and passes through to the outside of the cooling plate; however, the cooling effect still has the problem mentioned in the previous paragraph. Therefore, it is necessary to improve the liquid cooling plate. Summary of the invention

[0004] 1. Technical problems to be solved: In view of the above technical problems, the present invention provides a new type of liquid cooling plate for new energy vehicles, which achieves the purpose of improving cooling efficiency by setting different heat dissipation modules.

[0005] 2. Technical solution: A new type of liquid-cooled plate for new energy vehicles, in which a flow channel for coolant is provided in the inner cavity of the housing, and a liquid inlet and a liquid outlet are respectively arranged at both ends of the housing; it is characterized in that: the flow channel includes a main flow channel and a side flow channel; the main flow channel extends from the liquid inlet to the liquid outlet along the extension direction of the inner cavity; the side flow channel extends from the liquid inlet to the liquid outlet along the side wall of the inner cavity; when the coolant enters the main flow channel from the liquid inlet, it passes through a diamond-shaped turbulator module, a diverter, an oval turbulator module and a circular turbulator module in sequence and then flows out from the liquid outlet; the diamond-shaped turbulator module is a turbulator with a plurality of diamond-shaped columns uniformly distributed in its channel, and the liquid flows through the cavity between the diamond-shaped columns to the diverter and through the through holes of the diverter to the oval turbulator module; the oval turbulator module is a turbulator with a plurality of elliptical cylinders uniformly distributed in its channel, and the liquid flowing through the oval turbulator module flows to the circular turbulator module; the circular turbulator module is a turbulator with a plurality of cylindrical columns distributed in its channel, and a plurality of triangular flow guiding plates are arranged between the cylindrical turbulator columns; the side flow channel and the main flow channel communicate through through holes; the inner walls of the liquid inlet and the liquid outlet are slopes with a preset slope, and the liquid flows from the high place to the low place of the slope.

[0006] Further, the housing includes a lower cover plate for opening the flow channel and an upper cover plate covering the surface of the lower cover plate; the main flow channel and the side flow channel are both arranged in a groove opened on the upper surface of the lower cover plate; the liquid inlet and the liquid outlet are both arranged on the upper surface of the upper cover plate; the liquid inlet inner hole and the liquid outlet inner hole newly formed in the lower cover plate groove at the lower ends of the liquid inlet and the liquid outlet communicate with the main flow channel.

[0007] Further, the housing is square; the side flow channel is formed by arranging partition plates along the side wall of the lower cover plate inside the lower cover plate, and the cavity between the side wall of the lower cover plate and the partition plates forms the side flow channel; the cavity between the partition plates forms the main flow channel.

[0008] Further, in the main flow channel, the percentage of the occupied area of the diamond-shaped turbulator module, the oval turbulator module and the circular turbulator module is 30% - 35%, 40% - 45%, 25% - 30% in sequence; the turbulator columns of each module are arranged in an array; the density of the turbulator columns of different modules is different, the distance between the diamond-shaped turbulator columns is 6 - 12 mm, the distance between the oval turbulator columns is 4 - 8 mm, and the distance between the circular turbulator columns is 2 - 4 mm; in the side flow channel, the width of the side flow channel is 6 - 8 mm less than the liquid inlet of the main flow channel.

[0009] Further, in each module of the main flow channel, the arrangement mode of the turbulator columns includes equidistant arrangement with a distance of 2 - 12 mm aligned front and back or staggered cross arrangement with a distance of 2 - 6 mm or randomly covering the groove where the corresponding module is located with a distance of 3 - 5 mm.

[0010] Further, the side length of the diamond-shaped spoiler column is 3 mm, and the acute angle is between 30° and 60°; the major axis of the elliptical spoiler column is 4 mm, and the minor axis is 1.5 mm; the diameter of the circular spoiler column is 1.5 mm.

[0011] Further, the major axis of each module spoiler column of the main flow channel is parallel to the extension direction of the main flow channel, and each module spoiler column is connected to the bottom surfaces of the upper cover plate and the lower cover plate; there is at least a 1-mm gap between each spoiler column module and the partition plate and the diverter, and there is a 3- to 7-mm gap between the spoiler columns of the grooves near the liquid inlet and the liquid outlet and the corresponding grooves.

[0012] Further, the diverter is located at the position of intercepting the coolant in the main flow channel, and both ends of the diverter are connected to the corresponding partition plates, and are connected to the bottom surfaces of the upper cover plate and the lower cover plate up and down; the diverter is in a cuboid shape or in a "V" shape or in an "S" shape; when in a "V" shape, the angle between the two sides is between 160° and 170°, and its tip points towards the liquid inlet direction; the diverter is provided with honeycomb through holes with a diameter of 0.5 mm, and the positions of the through holes are consistent with the direction of the coolant main flow channel.

[0013] Further, the triangular guide plates located in the circular spoiler column module are arranged in two columns and four pieces, with a left-right spacing of 20 mm to 30 mm and an up-down spacing of 15 mm to 20 mm. The three interior angles of the triangular guide plate are 25°, 45°, and 110° respectively; the long side of the triangular guide plate forms an angle of 45° to 60° with the proximal partition plate, and the other side of the guide plate is parallel to the main flow channel or forms an angle of 20° to 30°; the four guide plates are located in the middle of the main flow channel of the circular spoiler column module.

[0014] Further, the side flow channel is connected between the inner wall and the outer wall at the liquid outlet end to block the side flow channel and prevent the coolant in the side flow channel from directly flowing out of the liquid outlet; the lower cover plate is an integrally formed structure, and the integrally formed structure includes a partition plate, a spoiler column, and a triangular guide plate located inside its groove; the groove surface of the lower cover plate is coated with a hydrophobic coating.

[0015] 3. Beneficial effects: (1) In a new type of liquid cooling plate for new energy vehicles of the present invention, various forms of combination of the channels through which the coolant flows are helpful for the coolant to fully absorb heat. In this method, the coolant flow channels are divided into a main flow channel and a side channel. In the main flow channel, the coolant flows through a diamond-shaped turbulator module, a diverter, an oval turbulator module, and a circular turbulator module in sequence and then flows out from the liquid outlet. The circulation in various different forms changes the flow effect of the coolant in the flow channel. By adding a diverter, the speed of the coolant entering the oval turbulator module is reduced and the coolant flow distribution is integrated. By adding a deflector plate, the flow direction of part of the coolant in the circular turbulator is changed, and the coolant is guided to the corner area, thereby improving the heat dissipation effect.

[0016] (2) In a new type of liquid cooling plate for new energy vehicles of the present invention, while setting the main flow channel, a side flow channel is also provided. The coolant flowing into the side flow channel can directly flow to different modules, which is more helpful for the uneven internal flow speed of the coolant and thus improves the heat dissipation effect. Brief Description of the Drawings

[0017] Figure 1 It is the external view of the liquid cooling plate in the specific embodiment of the present invention; Figure 2 It is the schematic diagram of the main flow channel in the specific embodiment of the present invention; Figure 3 It is the schematic diagram of the side flow channel in the specific embodiment of the present invention; Figure 4 It is the schematic diagram of the lower cover plate in the specific embodiment of the present invention Figure 1 ; Figure 5 It is the schematic diagram of the lower cover plate in the specific embodiment of the present invention Figure 2 ; Figure 6 The cross-sectional view of the front view of the liquid cooling plate in the specific embodiment of the present invention Figure 7 The schematic diagram of the diverter in the specific embodiment of the present invention.

[0018] Reference Signs: housing 1; liquid inlet 2; liquid outlet 3; main flow channel 4; side flow channel 5; side wall 6; diamond-shaped turbulator module 7; diverter 8; oval turbulator module 9; circular turbulator module 10; diamond-shaped turbulator 11; oval cylinder-shaped turbulator 12; cylinder-shaped turbulator 13; triangular deflector plate 14; lower cover plate 15; upper cover plate 16; partition plate 17; inner hole of the liquid inlet 18; inner hole of the liquid outlet 19; Detailed Embodiment

[0019] The present invention will be specifically described below with reference to the drawings.

[0020] As shown in the attached Figure 1 to the attachedFigure 7 As shown in the figure, a new type of liquid cooling plate for new energy vehicles has a flow channel for coolant inside the cavity of its housing 1, and a liquid inlet 2 and a liquid outlet 3 are respectively arranged at both ends of the housing. It is characterized in that: the flow channel includes a main flow channel 4 and a side flow channel 5; the main flow channel extends from the liquid inlet to the liquid outlet along the extension direction of the inner cavity; the side flow channel extends from the liquid inlet to the liquid outlet along the side wall 6 of the inner cavity; when the coolant enters the main flow channel from the liquid inlet, it passes through a diamond-shaped turbulator module 7, a diverter 8, an oval-shaped turbulator module 9 and a circular turbulator module 10 in sequence and then flows out from the liquid outlet; the diamond-shaped turbulator module is a turbulator 11 with a plurality of diamond-shaped columns evenly distributed in its channel, and the liquid flows through the cavity between the diamond-shaped columns to the diverter and then flows through the through holes of the diverter to the oval-shaped turbulator module; the oval-shaped turbulator module is a turbulator 12 with a plurality of ellipsoidal columns evenly distributed in its channel, and the liquid flowing through the oval-shaped turbulator module flows to the circular turbulator module; the circular turbulator module is a turbulator 13 with a plurality of cylindrical columns distributed in its channel, and a plurality of triangular guide plates 14 are arranged between the cylindrical turbulators; the side flow channel communicates with the main flow channel through through holes; the inner walls of the liquid inlet and the liquid outlet are slopes with a preset slope, and the liquid flows from the higher place to the lower place of the slope.

[0021] Further, the housing includes a lower cover plate 15 with a flow channel opened and an upper cover plate 16 covering the surface of the lower cover plate; the main flow channel and the side flow channel are both arranged in the grooves opened on the upper surface of the lower cover plate; the liquid inlet and the liquid outlet are both arranged on the upper surface of the upper cover plate; the newly formed liquid inlet inner hole 18 and the liquid outlet inner hole 19 at the lower end of the liquid inlet and the liquid outlet on the lower cover plate groove communicate with the main flow channel.

[0022] Further, the housing is square; the side flow channel is formed by arranging a partition 17 along the side wall of the lower cover plate inside the lower cover plate, and the cavity between the side wall of the lower cover plate and the partition forms the side flow channel; the cavity between the partitions forms the main flow channel.

[0023] Further, in the main flow channel, the percentages of the occupied areas of the diamond-shaped turbulator module, the oval-shaped turbulator module and the circular turbulator module are 30% - 35%, 40% - 45% and 25% - 30% in sequence; the turbulators of each module are arranged in an array; the density of the turbulators of different modules is different, the distance between the diamond-shaped turbulators is 6 - 12 mm, the distance between the oval-shaped turbulators is 4 - 8 mm, and the distance between the circular turbulators is 2 - 4 mm; in the side flow channel, the width of the side flow channel is 6 mm - 8 mm less than the liquid inlet of the main flow channel.

[0024] Further, in each module of the main flow channel, the arrangement mode of the turbulators includes equidistant arrangement with a distance of 2 - 12 mm front and back alignment or staggered cross arrangement with a distance of 2 - 6 mm or randomly covering the groove where the corresponding module is located with a distance of 3 - 5 mm.

[0025] Furthermore, the side length of the diamond-shaped turbulator is 3 mm, and the acute angle is between 30° and 60°; the major axis of the elliptical turbulator is 4 mm, and the minor axis is 1.5 mm; the diameter of the circular turbulator is 1.5 mm.

[0026] Furthermore, the major axis of each module turbulator in the main flow channel is parallel to the extension direction of the main flow channel, and each module turbulator is connected to the bottom surfaces of the upper cover plate and the lower cover plate; there is at least a 1-mm gap between each turbulator module and the partition plate and the flow splitter, and there is a 3- to 7-mm gap between the turbulators in the grooves near the liquid inlet and the liquid outlet and the corresponding grooves.

[0027] Furthermore, the flow splitter is located at the position where the coolant in the main flow channel is intercepted. The two ends of the flow splitter are connected to the corresponding partition plates, and the upper and lower parts are connected to the bottom surfaces of the upper cover plate and the lower cover plate; the flow splitter is in the shape of a cuboid or a "V" shape or an "S" shape; when in the "V" shape, the angle between the two sides is between 160° and 170°, and its tip faces the liquid inlet direction; the flow splitter is provided with honeycomb-shaped through holes with a diameter of 0.5 mm, and the positions of the through holes are consistent with the direction of the coolant main flow channel.

[0028] Furthermore, the triangular guide plates in the circular turbulator module are arranged in two columns of four, with a left-right spacing of 20 mm to 30 mm and an up-down spacing of 15 mm to 20 mm. The three interior angles of the triangular guide plates are 25°, 45°, and 110° respectively; the long side of the triangular guide plate forms an angle of 45° to 60° with the proximal partition plate, and the other side of the guide plate is parallel to the main flow channel or forms an angle of 20° to 30°; the four guide plates are located in the middle of the main flow channel of the circular turbulator module.

[0029] Furthermore, the side flow channel is connected between the inner wall and the outer wall at the liquid outlet end to block the side flow channel and prevent the coolant in the side flow channel from directly flowing out of the liquid outlet; the lower cover plate is an integrally formed structure, and the integrally formed structure includes a partition plate, a turbulator, and a triangular guide plate located inside its groove; the groove surfaces of the lower cover plate are all coated with a hydrophobic coating. Specific Embodiment 1: As shown in the Figure 1 attachment, it is an external view of the liquid cooling plate; in this embodiment, the liquid cooling plate is the most common square shape; its specific size is the same as that of the battery to be cooled. The housing of the liquid cooling plate is formed by connecting the upper cover plate and the lower cover plate. The upper cover plate is in the form of a plate, and the lower cover plate is provided with a flow channel for passing the coolant.

[0031] As shown in the Figure 2 and 3 attachments, the flow channels provided in the lower cover plate include a main flow channel ( Figure 2 the arrow in Figure 3The arrow in [Figure 0]); Coolant flows into the main flow channel and the side flow channel from the liquid inlet, and the coolant after passing through the flow channel flows out from the liquid outlet.

[0032] As shown in the attached Figure 4 、 5 As shown in [Figure 7], the interior of the housing in this method is provided with a multi-modular main coolant flow channel. Each module is provided with different turbulators. The coolant passes through the diamond turbulator module, the elliptical turbulator module, and the circular turbulator module in sequence from the liquid inlet through the main flow channel to the liquid outlet. A diverter is designed and added between the diamond turbulator module and the elliptical turbulator module. There are two rows of four symmetric triangular prism flow deflectors in the circular turbulator module. A side flow channel for the coolant to flow through is provided between the outer wall and the inner wall. A through hole is provided in the groove at the lower end of the liquid inlet to communicate with the flow channel. The partition is provided with a through hole, and a through hole is provided on the inner wall at the liquid outlet end to penetrate the main flow channel and the liquid outlet. Hydrophobic coatings are added to all surfaces inside the above structure.

[0033] In this solution, three different turbulator modules are provided in the cavity part between the upper and lower cover plates to divide the entire main coolant flow channel into three modules. In this embodiment, the turbulators of each module are different. The side length of the diamond turbulator is 3 mm, and the acute angle is between 30° and 60°; the major axis of the elliptical turbulator is 4 mm, and the minor axis is 1.5 mm; the diameter of the circular turbulator is 1.5 mm. The major axes of the turbulators are all in the same direction as the main flow channel direction, so as to minimize the resistance of the coolant as much as possible. The design of the turbulators increases the contact area, which is beneficial to heat conduction and heat dissipation. Moreover, the design of the turbulators also changes the turbulence degree of the coolant in each module, changing the flow state of the coolant, which will be more beneficial to improving the heat dissipation effect. The main flow channels formed between the three modules for the coolant to flow through, and these main flow channels and the side flow channels constitute the cooling channels inside the liquid cooling plate. The liquid inlet is at the left end of the upper cover plate to introduce the coolant into the main flow channel and the side flow channel, and the liquid outlet is located at the right end of the upper cover plate for discharging the coolant. The diverter between the diamond turbulator module and the elliptical turbulator module integrates the coolant coming from the diamond turbulator module, dispersing the flow state of the coolant, so that when the coolant enters the elliptical turbulator module after passing through the diverter, the coolant can reach a state of uniform distribution into the elliptical turbulator module, and at the same time, it also changes the turbulence degree of the coolant, which will be beneficial to uniform heat dissipation and improve the heat dissipation effect.

[0034] Moreover, for better heat dissipation effect, four triangular flow deflectors are added in the area of the circular turbulator module in this embodiment. It is found in the conventional liquid cooling plate that the cooling effect at the corner parts is very poor. The reason is that the amount of coolant flowing at the corner parts is small, resulting in poor effect. Therefore, the addition of the flow deflectors is to solve this problem, allowing more coolant to flow through the corner parts, taking away more heat, and improving the heat dissipation effect.

[0035] In this solution, the flow channels of the liquid cooling plate are divided into a main flow channel and side flow channels. The side flow channels are designed to surround the liquid cooling plate once around the periphery of the housing. The side flow channels are designed to disperse the coolant entering the main flow channel and also to dissipate heat from the corner positions of the liquid cooling plate, making up for the insufficient heat dissipation of the main flow channel at the corner positions. Opening holes in the inner wall is beneficial for the coolant to flow in the main flow channel and side flow channels, which is beneficial for improving the cooling effect. The coolant flows in from the liquid inlet and flows out from the liquid outlet, passing through multiple links. Although a lot of heat is carried away, there is a great loss in the flow rate of the coolant. In order to reduce the loss of the coolant flow rate, a hydrophobic coating is attached to the surfaces of each coolant flow channel, so that more heat can be carried away at a faster flow rate.

[0036] The above structure has the following advantages: 1. Improve cooling efficiency: The turbulator columns of each module increase the direct contact between the coolant and the housing. The flow divider and the triangular guide 8 significantly change the flow state of the coolant, significantly improving the cooling efficiency.

[0037] 2. Reduce the loss of coolant flow rate: After passing through multiple modules, there is a very large loss in the flow rate of the coolant. Spraying a hydrophobic coating on the surface will help reduce the flow rate loss, so as to carry away more heat and thus improve the heat dissipation effect.

[0038] 3. The side flow channels can very well make up for the insufficient heat dissipation of the main flow channel in the corner area and can very well supplement the coolant in the main flow channel, which can improve the heat dissipation efficiency and achieve the purpose of uniform heat dissipation. Specific embodiment 2: This embodiment gives the arrangement of the turbulator columns of each module: The density of the turbulator columns of each module is different. The distance between the diamond-shaped turbulator columns is 6 - 12 mm, the distance between the oval turbulator columns is 4 - 8 mm, and the distance between the circular turbulator columns is 2 - 4 mm; they can be arranged at equal intervals, or multiple turbulator columns can be arranged in a staggered and crossed manner, or the turbulator columns of each module can be randomly arranged to cover each module.

[0040] The array arrangement of multiple turbulators means that the turbulators on the lower cover plate are designed to be arranged in an orderly manner. This can be a matrix-like, grid-like or other regular arrangement. Each turbulator is arranged at a specific position relative to other turbulators, forming an overall array structure. The array arrangement of turbulators helps to increase the effective heat dissipation area on the surface of the liquid cooling plate. When the coolant flows through these turbulators, the coolant can more effectively absorb the heat on the housing. The arrangement structure of the turbulators helps to change the coolant flow path, maximize the contact with the turbulator surface, and improve the convective heat transfer efficiency. Through the array arrangement of the turbulators, the surface area in direct contact with the coolant is increased, thereby improving the overall heat dissipation efficiency of the liquid cooling plate. More turbulators mean that more heat can be transferred to the coolant, accelerating the conduction and dispersion of heat. The orderly arrangement of the turbulators can improve the guiding property of the coolant during the flow process, avoid the rapid flow of the coolant in a small area, ensure that the coolant can effectively flow through each turbulator, and take away more heat. Through a larger surface area and more effective coolant flow, the array arrangement of the turbulators helps to improve the heat equalization effect of the housing, ensuring a more uniform temperature distribution on the entire surface of the housing 1.

[0041] The turbulators of each module are arranged in a straight line at equal intervals with front-to-back alignment, and can be arranged horizontally, vertically or obliquely. This arrangement is simple and intuitive. The turbulators of each module are arranged in a staggered and crossed pattern, forming a crossed pattern. This arrangement can not only increase the contact area of the turbulators but also interfere with the coolant flow path, improving the heat transfer efficiency; the turbulators of each module are arranged in a disorderly manner to cover each module. This design can maximize the heat dissipation area, effectively split the coolant flow, and improve the heat transfer effect. Specific Embodiment 3: As shown in the attached Figure 4 , 5 , the triangular guide plates 14 of the circular turbulator module are arranged in two columns and four pieces, with a left-right spacing of 20 mm to 30 mm and an up-down spacing of 15 mm to 20 mm. The three interior angles of the triangular guide plate are approximately 25°, 45°, and 110° respectively. The long side of the triangular guide plate 8 faces the proximal side wall to form an angle of 45° to 60°, and the other side of the guide plate is parallel to the main flow channel or forms an angle of 20° to 30°. The four guide plates are located in the middle position of the main flow channel of the circular turbulator module.

[0043] There are dead corners in the coolant flow at the two corners beside the liquid outlet, and not enough coolant flows through here, resulting in the temperature at the corners being higher than the other parts, and the cooling effect cannot be improved. However, the function of the diverter is to direct some of the coolant in the middle part to the corner part to take away heat and make its heat dissipation uniform, thereby improving the cooling efficiency. Increase the contact area: The three surfaces of the flow guide plate have a large contact area with the coolant, which can take away a large amount of heat on the flow guide plate, and then achieve the purpose of improving the cooling effect. Specific Embodiment 4: Each turbulator and the triangular flow guide plate are of solid structure, or each turbulator and the triangular flow guide plate are of shell structure with cavities inside; or one of each turbulator and the triangular flow guide plate is of solid structure and the other is of shell structure with cavities inside.

[0045] Specifically, the turbulator and the flow guide plate can be of solid structure or shell structure. Case 1: The turbulator is a solid structure directly protruding from the upper cover plate and the lower cover plate without a cavity. The coolant flows through the turbulator through the main flow channel and directly contacts the surface of the solid-structured turbulator. The solid structure of the turbulator helps to transfer heat more effectively because the cooling plate is in direct contact with the solid turbulator, reducing the heat transfer resistance and promoting more efficient heat transfer. This is beneficial for improving the heat dissipation performance of the liquid cooling plate. Case 2: The turbulator and the flow guide plate have a shell structure. The coolant passes through the surface of the turbulator or the flow guide plate structure of the shell structure. The shell structure is beneficial for saving production raw materials and making the cost lower. Specific Embodiment 5: After the liquid cooling plate is designed and manufactured, a hydrophobic coating is applied to its inner surface. In this process, the raw material of the hydrophobic coating is injected into the liquid cooling plate from the liquid inlet instead of the coolant, and the raw material is allowed to flow out from the liquid outlet for a period of time until the inner surface has been coated with a sufficient thickness of the coating. Then, all the raw materials in the main flow channel are drained and dried in the sun. Adding a hydrophobic coating on the surface is to reduce the resistance of the coolant in the main flow channel and prevent the coolant flow rate from being too small to take away more heat. The coolant flows in from the liquid inlet and out from the liquid outlet, passing through each turbulator module, diverter, and flow guide plate. At this time, the purpose of uniform heat dissipation is achieved, but too much flow rate will be lost, and a low flow rate cannot take away a large amount of heat. To prevent this phenomenon from occurring, a hydrophobic coating is applied to its surface to achieve the purpose of improving the heat dissipation of the liquid cooling plate.

[0047] Although the present invention has been disclosed above with preferred embodiments, they are not used to limit the present invention. Any person skilled in this art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the protection scope of the claims of this application.

Claims

1. A new type of liquid cooling plate for new energy vehicles, in which a flow channel for coolant is provided in the inner cavity of the housing, and a liquid inlet and a liquid outlet are respectively arranged at both ends of the housing; characterized in that: The flow channel includes a main flow channel and side flow channels; the main flow channel extends from the liquid inlet to the liquid outlet along the extension direction of the inner cavity; the side flow channels extend from the liquid inlet to the liquid outlet along the side wall of the inner cavity; When the coolant enters the main flow channel from the liquid inlet, it sequentially passes through a diamond-shaped turbulator module, a diverter, an oval turbulator module, and a circular turbulator module and then flows out from the liquid outlet; the diamond-shaped turbulator module is a turbulator with a plurality of diamond-shaped columns evenly distributed in its channel, and the liquid flows through the cavities between the diamond-shaped columns to the diverter and then through the through holes of the diverter to the oval turbulator module; the oval turbulator module is a turbulator with a plurality of elliptical cylinders evenly distributed in its channel, and the liquid flowing through the oval turbulator module flows to the circular turbulator module; the circular turbulator module is a turbulator with a plurality of cylindrical columns distributed in its channel, and a plurality of triangular flow guiding plates are provided between the cylindrical columns; the side flow channels communicate with the main flow channel through through holes; the inner walls of the liquid inlet and the liquid outlet are slopes with a preset slope, and the liquid flows from the higher part of the slope to the lower part.

2. The novel liquid cooling plate for new energy vehicles according to claim 1, wherein: The housing includes a lower cover plate with a flow channel formed therein and an upper cover plate covering the surface of the lower cover plate; the main flow channel and the side flow channels are both arranged in the grooves formed on the upper surface of the lower cover plate; the liquid inlet and the liquid outlet are both arranged on the upper surface of the upper cover plate; the newly formed liquid inlet inner hole and the liquid outlet inner hole at the lower cover plate grooves located at the lower ends of the liquid inlet and the liquid outlet communicate with the main flow channel.

3. The novel liquid cooling plate for new energy vehicles according to claim 1 is characterized in that: The housing is square; the side flow channels are formed by arranging partitions along the side walls of the lower cover plate inside the lower cover plate, and the cavities between the side walls of the lower cover plate and the partitions form the side flow channels; the cavities between the partitions form the main flow channel.

4. The novel liquid cooling plate for new energy vehicles according to claim 1, wherein: In the main flow channel, the percentages of the occupied areas of the diamond-shaped turbulator module, the oval turbulator module, and the circular turbulator module are 30% - 35%, 40% - 45%, and 25% - 30% in sequence; the turbulator columns of each module are arranged in an array; the density of the turbulator columns of different modules is different, the distance between the diamond-shaped turbulator columns is 6 - 12 mm, the distance between the oval turbulator columns is 4 - 8 mm, and the distance between the circular turbulator columns is 2 - 4 mm; in the side flow channels, the width of the side flow channels is 6 - 8 mm less than the liquid inlet of the main flow channel.

5. A novel liquid cooling plate for new energy vehicles according to claim 1, characterized in that: In each module of the main flow channel, the arrangement mode of the turbulator columns includes equidistant arrangement with a distance of 2 - 12 mm in the front-back alignment, or staggered cross arrangement with a distance of 2 - 6 mm, or randomly filling the groove where the corresponding module is located with a distance of 3 - 5 mm.

6. The novel liquid cooling plate for new energy vehicles according to claim 1, characterized in that: The side length of the diamond of the diamond-shaped turbulator column is 3 mm, and the acute angle is between 30° and 60°; the major axis of the ellipse of the oval turbulator column is 4 mm, and the minor axis is 1.5 mm; the diameter of the circle of the circular turbulator column is 1.5 mm.

7. A novel liquid cooling plate for new energy vehicles according to claim 1, characterized in that: The major axes of the turbulator columns of each module in the main flow channel are all parallel to the extension direction of the main flow channel, and the turbulator columns of each module are connected to the bottom surfaces of the upper cover plate and the lower cover plate; there is at least a 1 mm gap between each turbulator module and the partition and the diverter, and the turbulator columns in the grooves near the liquid inlet and the liquid outlet are 3 - 7 mm away from the corresponding grooves.

8. The novel liquid cooling plate for new energy vehicles according to claim 1, wherein: The shunt is positioned to intercept the coolant in the main flow path. Both ends of the shunt are connected to the corresponding partition plates, and the upper and lower parts are connected to the bottom surfaces of the upper cover plate and the lower cover plate. The shunt is in the shape of a cuboid, a "V" shape, or an "S" shape. When in the "V" shape, the angle between the two sides is between 160° and 170°, and its tip points towards the liquid inlet direction. The shunt is provided with honeycomb through holes with a diameter of 0.5 mm, and the positions of the through holes are consistent with the direction of the coolant main flow path.

9. A novel liquid-cooled plate for new energy vehicles according to claim 1, characterized in that: There are two rows of four triangular flow guiding plates in the circular flow disturbing column module, with a left-right spacing of 20 mm to 30 mm and an up-down spacing of 15 mm to 20 mm. The three interior angles of the triangular flow guiding plates are 25°, 45°, and 110° respectively. The long side of the triangular flow guiding plate forms an angle of 45° to 60° with the proximal partition plate, and the other side of the flow guiding plate is parallel to the main flow path or forms an angle of 20° to 30° with it. The four flow guiding plates are located in the middle of the main flow path of the circular flow disturbing column module.

10. The novel liquid cooling plate for new energy vehicles according to claim 1, characterized in that: The inner wall and the outer wall of the side flow path are connected at the liquid outlet end to block the side flow path and prevent the coolant in the side flow path from directly flowing into the liquid outlet. The lower cover plate is an integrally formed structure, and this integrally formed structure includes partition plates, flow disturbing columns, and triangular flow guiding plates located inside its grooves. The surfaces of the grooves of the lower cover plate are all coated with a hydrophobic coating.

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