Power battery liquid cooling plate assembly with partitioned independent flow channel and turbulence structure

Abstract

The application discloses a power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure, comprising: a liquid cooling plate body, which is in a rectangular flat plate shape, at least two independent flow channels are arranged in the liquid cooling plate body, a flow channel partition plate is arranged between adjacent independent flow channels, an inlet collection cavity and an outlet collection cavity are arranged in the liquid cooling plate body; the turbulence structure comprises a plurality of turbulence columns, the turbulence columns are fixed on the bottom wall of the independent flow channel, and the top of the turbulence column is in contact with the top wall of the independent flow channel; a joint assembly is fixed on one side end face of the liquid cooling plate body, and the joint assembly comprises a liquid inlet joint and a liquid outlet joint. The flow channel partition plate divides the liquid cooling plate body into a plurality of independent flow channels, the flow distribution of the cooling liquid in each flow channel is uniform, the heat exchange conditions of different areas on the surface of the liquid cooling plate are consistent, the temperature deviation of the surface of the plate body is effectively reduced, and the temperature uniformity of each part of the power battery module is improved.

Description

Technical Field

[0001] This invention relates to the field of power battery heat dissipation technology, and in particular to a power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure. Background Technology

[0002] New energy vehicle power batteries generate a large amount of heat during charging and discharging. Excessive battery temperature or uneven temperature distribution directly affects battery life and safety performance. Liquid cooling, due to its high heat exchange efficiency and compact structure, has become the mainstream heat dissipation solution for power battery thermal management systems. As the core component of the liquid cooling system, the internal flow channel structure of the liquid cooling plate directly determines the flow state and heat exchange effect of the coolant.

[0003] Existing power battery liquid cooling plates mostly adopt a single-channel or dual-channel parallel arrangement structure. The coolant enters from the inlet, flows in a single direction through the entire plate, and then flows out from the outlet. This type of structure has the following problems in practical applications: the friction resistance along the flow channel increases continuously with the increase of the flow channel length; the flow velocity distribution of the coolant is uneven at different positions in the flow channel, with high flow velocity near the inlet and low flow velocity further away from the inlet, resulting in uneven temperature distribution on the surface of the liquid cooling plate and differences in heat dissipation effect in different parts of the battery module; the smooth inner wall of the flow channel makes it easy for the coolant to form a laminar flow state during the flow process, with a large boundary layer thickness, low heat transfer coefficient, and limited heat dissipation capacity; some liquid cooling plates add protrusions in the flow channel to improve the heat transfer effect, but the arrangement of the protrusions is unreasonable, resulting in a sharp increase in local flow resistance and a significant increase in pumping power consumption; in the single-channel structure, the contact area between the coolant and the liquid cooling plate is limited, the heat transfer path is single, and it is difficult to further improve the heat transfer efficiency.

[0004] In addition, the existing liquid cooling plate has an imperfect flow channel partition design. The flow channels in each area are interconnected. When a flow channel in a certain area is blocked or leaked, the heat dissipation function of the entire liquid cooling plate is affected, resulting in insufficient reliability. The structure of the collection cavity at the end of the flow channel is simple. The coolant lacks sufficient distribution and rectification before entering the flow channel. The flow distribution deviation of each branch flow channel is large, which further aggravates the unevenness of temperature distribution. Summary of the Invention

[0005] The purpose of this invention is to provide a power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure, comprising: The liquid cooling plate body is rectangular flat. At least two independent flow channels are provided within the liquid cooling plate body. These independent flow channels extend in a serpentine pattern within the liquid cooling plate body. Each independent flow channel has a rectangular cross-section. A flow channel partition is provided between adjacent independent flow channels. The flow channel partition is arranged along the extension direction of the independent flow channel. Both sides of the flow channel partition are connected to the sidewalls of the adjacent independent flow channels. An inlet collecting cavity and an outlet collecting cavity are provided inside the liquid cooling plate body. The inlet collecting cavity and the outlet collecting cavity are located at the same end of each independent flow channel. The inlet collecting cavity is connected to the liquid inlet end of each independent flow channel, and the outlet collecting cavity is connected to the liquid outlet end of each independent flow channel. A flow disturbance structure is provided inside the independent flow channel. The flow disturbance structure includes a plurality of flow disturbance columns, which are fixed on the bottom wall of the independent flow channel. The flow disturbance columns are arranged at intervals along the extension direction of the independent flow channel, and the top of the flow disturbance columns is in contact with the top wall of the independent flow channel. A connector assembly is fixed to one end face of the liquid cooling plate body. The connector assembly includes an inlet connector and an outlet connector. The inlet connector is connected to the inlet collection cavity, and the outlet connector is connected to the outlet collection cavity.

[0007] According to the present invention, a power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure is provided. The liquid cooling plate body includes an upper cover plate and a lower base plate. The upper cover plate covers the upper base plate. The lower surface of the upper cover plate is in contact with the upper surface of the lower base plate. The edge of the upper cover plate is connected to the edge of the lower base plate. The independent flow channels are disposed on the upper surface of the lower base plate. The lower surface of the upper cover plate is in contact with the top of the independent flow channels.

[0008] According to the present invention, a power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure is provided. The independent flow channels include a first independent flow channel and a second independent flow channel. The first independent flow channel and the second independent flow channel are arranged side by side along the width direction of the liquid cooling plate body. A flow channel partition is located between the first independent flow channel and the second independent flow channel. One side of the flow channel partition is connected to the side wall of the first independent flow channel, and the other side of the flow channel partition is connected to the side wall of the second independent flow channel. The liquid inlet end of the first independent flow channel and the liquid inlet end of the second independent flow channel are both connected to the inlet collecting cavity. The liquid outlet end of the first independent flow channel and the liquid outlet end of the second independent flow channel are both connected to the outlet collecting cavity.

[0009] According to the power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure provided by the present invention, the turbulence column is an elliptical column, the major axis of the turbulence column is arranged along the extension direction of the independent flow channel, the minor axis of the turbulence column is arranged along the width direction of the independent flow channel, and the bottom of the turbulence column is connected to the bottom wall of the independent flow channel.

[0010] According to the present invention, the power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure is provided, wherein the turbulence columns are arranged in multiple rows and columns within the independent flow channels, the turbulence columns in adjacent rows are staggered, the turbulence columns in adjacent columns are aligned, the turbulence columns in each row are spaced apart along the extension direction of the independent flow channels, and the turbulence columns in each column are spaced apart along the width direction of the independent flow channels.

[0011] According to the power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure provided by the present invention, both the liquid inlet connector and the liquid outlet connector are quick-connect connectors. The liquid inlet connector and the liquid outlet connector are arranged at intervals along the length direction of the liquid cooling plate body. The liquid inlet connector is located above the liquid outlet connector. One end of the liquid inlet connector is inserted into the liquid cooling plate body and communicates with the inlet collection cavity. One end of the liquid outlet connector is inserted into the liquid cooling plate body and communicates with the outlet collection cavity.

[0012] According to the present invention, a power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure is provided, wherein the edge of the liquid cooling plate body is provided with a plurality of mounting holes, the mounting holes penetrating the upper and lower surfaces of the liquid cooling plate body, and the mounting holes are arranged at intervals along the circumference of the liquid cooling plate body.

[0013] According to the present invention, the power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure is provided, wherein the flow channel partition and the liquid cooling plate body are integrally formed, and the turbulence column and the liquid cooling plate body are integrally formed.

[0014] The present invention discloses the following technical effects: The flow channel baffle of this invention divides the interior of the liquid cooling plate into multiple independent flow channels. Each independent flow channel is arranged in parallel and has the same flow path length. The flow rate of the coolant in each flow channel is evenly distributed, and the heat exchange conditions in different areas of the liquid cooling plate surface are consistent, effectively reducing the temperature deviation of the plate surface and improving the temperature uniformity of various parts of the power battery module.

[0015] The turbulence columns arranged in an array within the independent flow channel of this invention create a continuous disturbance to the coolant. When the coolant flows through the turbulence columns, it generates lateral mixing and local vortices, resulting in a thinner boundary layer, an increased fluid renewal frequency in the near-wall region, and an increased heat transfer coefficient between the wall and the coolant, thereby improving the overall heat dissipation capacity of the liquid cooling plate.

[0016] The independent flow channel of this invention adopts a serpentine extension arrangement, and the coolant changes its flow direction multiple times within the limited plate space, which prolongs the contact time and contact area between the coolant and the liquid cooling plate wall. At the same time, each turning process causes the velocity distribution of the flow channel cross section to be readjusted, avoiding the continuous development of the laminar flow state and further enhancing the heat exchange effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure according to the present invention. Figure I ; Figure 2 This is a schematic diagram of the power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure according to the present invention. Figure II .

[0019] The components include: 1. Liquid cooling plate body; 2. Independent flow channel; 3. Flow channel baffle; 4. Outlet collection cavity; 5. Inlet collection cavity; 6. Baffle column; 7. Connector assembly. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figures 1-2 The present invention provides a power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure, comprising: The liquid cooling plate body 1 is a rectangular flat plate. At least two independent flow channels 2 are provided inside the liquid cooling plate body 1. The independent flow channels 2 extend in a serpentine manner inside the liquid cooling plate body 1. The cross-section of the independent flow channels 2 is rectangular. A flow channel baffle 3 is provided between adjacent independent flow channels 2. The flow channel baffle 3 is arranged along the extension direction of the independent flow channels 2. The two sides of the flow channel baffle 3 are respectively connected to the side walls of the adjacent independent flow channels 2. An inlet collecting cavity 5 and an outlet collecting cavity 4 are provided inside the liquid cooling plate body 1. The inlet collecting cavity 5 and the outlet collecting cavity 4 are located at the same end of the independent flow channels 2. The inlet collecting cavity 5 is connected to the liquid inlet end of the independent flow channel 2, and the outlet collecting cavity 4 is connected to the liquid outlet end of the independent flow channel 2. The turbulence structure is set inside the independent flow channel 2. The turbulence structure includes several turbulence columns 6, which are fixed on the bottom wall of the independent flow channel 2. The turbulence columns 6 are arranged at intervals along the extension direction of the independent flow channel 2, and the top of the turbulence columns 6 is in contact with the top wall of the independent flow channel 2. The connector assembly 7 is fixed on one side end face of the liquid cooling plate body 1. The connector assembly 7 includes a liquid inlet connector and a liquid outlet connector. The liquid inlet connector is connected to the inlet collecting cavity 5, and the liquid outlet connector is connected to the outlet collecting cavity 4.

[0023] The coolant enters the inlet collection chamber 5 inside the liquid-cooled plate body 1 through the inlet connector. After initial distribution within the inlet collection chamber 5, it enters the inlet ends of each independent flow channel 2. After entering the independent flow channel 2, the coolant flows forward along a serpentine flow path. Flow channel baffles 3 completely separate adjacent independent flow channels 2, ensuring that the coolant in each independent flow channel 2 flows independently without interference. During the flow, the coolant continuously contacts the bottom and top walls of the independent flow channels 2. The heat absorbed by the liquid-cooled plate body 1 from the power battery side is continuously transferred to the coolant through the walls, achieving continuous heat removal. The turbulence columns 6 installed within the independent flow channels 2 are arranged in an array along the flow channel extension direction. When the coolant flows past the turbulence columns 6, the flow direction is blocked and guided by the turbulence columns 6, changing the velocity distribution within the flow channel cross-section. Lateral mixing occurs between the coolant in the central region and the near-wall region. After bypassing the turbulence columns 6, the coolant forms a local vortex downstream of the turbulence columns 6, reducing the boundary layer thickness, increasing the fluid renewal frequency in the near-wall region, and decreasing the thermal resistance between the wall and the coolant. The coolant changes its flow direction multiple times along the serpentine flow channel. During each turn, the flow velocity increases on the outer side of the channel and decreases on the inner side, causing a readjustment of the velocity distribution across the channel cross-section and a continuous change in the contact state between the coolant and the wall. After passing through multiple serpentine flow channels, the coolant reaches the outlet end of the independent flow channel 2. The coolant in each independent flow channel 2 converges into the outlet collection chamber 4 and finally flows out of the liquid-cooled plate body 1 from the outlet connector. The multiple independent flow channels 2 formed by the flow channel baffles 3 are arranged in parallel. The flow path length of the coolant in each independent flow channel 2 is similar, the flow distribution of each channel tends to be uniform, the heat exchange conditions in different areas of the liquid-cooled plate body 1 remain consistent, and the temperature distribution on the plate surface is more uniform.

[0024] Further optimization of the scheme: the liquid cooling plate body 1 includes an upper cover plate and a lower base plate. The upper cover plate covers the lower base plate, the lower surface of the upper cover plate is in contact with the upper surface of the lower base plate, the edge of the upper cover plate is connected with the edge of the lower base plate, and the independent flow channel 2 is set on the upper surface of the lower base plate. The lower surface of the upper cover plate is in contact with the top of the independent flow channel 2.

[0025] The lower base plate serves as the carrier for the flow channels. Independent flow channels 2 are directly formed on the upper surface of the lower base plate, and the upper cover plate forms a closed flow channel space. This split structure allows the flow channel processing to be completed independently on the lower base plate, freeing the flow channel's cross-sectional shape and the formation of its turbulence-inducing structure from the limitations of the enclosed space. The upper cover plate connects to the edge of the lower base plate to form a sealed interface, preventing coolant from overflowing from the sides of the plate. The lower surface of the upper cover plate contacts the top of the independent flow channel 2, allowing the top and bottom walls of the flow channel to together form a complete heat exchange wall. Heat generated by the power battery is simultaneously transferred to the coolant from both the top and bottom directions of the liquid cooling plate, effectively doubling the heat exchange area.

[0026] Further optimization of the scheme: the independent flow channel 2 includes a first independent flow channel 2 and a second independent flow channel 2. The first independent flow channel 2 and the second independent flow channel 2 are arranged side by side along the width direction of the liquid cooling plate body 1. The flow channel baffle 3 is located between the first independent flow channel 2 and the second independent flow channel 2. One side of the flow channel baffle 3 is connected to the side wall of the first independent flow channel 2, and the other side of the flow channel baffle 3 is connected to the side wall of the second independent flow channel 2. The liquid inlet end of the first independent flow channel 2 and the liquid inlet end of the second independent flow channel 2 are both connected to the inlet collecting cavity 5. The liquid outlet end of the first independent flow channel 2 and the liquid outlet end of the second independent flow channel 2 are both connected to the outlet collecting cavity 4.

[0027] The flow channel baffle 3 divides the internal space of the liquid-cooled plate into two parallel flow channels along the width direction: a first independent flow channel 2 and a second independent flow channel 2. Coolant enters from the inlet collecting chamber 5 and simultaneously flows into both independent flow channels 2, diverting the total flow rate into the two channels. The flow velocity in each channel decreases, thus reducing frictional resistance. The two flow channels are arranged side-by-side along the width direction, covering the entire width of the liquid-cooled plate, ensuring that coolant flows through all areas of the plate. The inlet ends of both flow channels are connected to the inlet collecting chamber 5, and the outlet ends are connected to the outlet collecting chamber 4, ensuring that the inlet and outlet pressures of the two flow channels are completely consistent and that the flow rate distribution in each channel is uniform, avoiding uneven heat exchange caused by excessively high or low flow rates in a single channel.

[0028] Further optimization of the scheme: the turbulence column 6 is an elliptical column, with its major axis arranged along the extension direction of the independent flow channel 2, its minor axis arranged along the width direction of the independent flow channel 2, and its bottom connected to the bottom wall of the independent flow channel 2.

[0029] The turbulence column 6 is an elliptical cylinder with its major axis arranged along the flow channel extension direction and its minor axis arranged along the flow channel width direction. When the coolant flows towards the turbulence column 6 along its major axis, the projected area of ​​the frontal surface is small, and the area of ​​frontal obstruction encountered by the coolant is limited, thus controlling the increase in flow resistance. When the coolant flows around the side of the turbulence column 6, the elliptical surface guides the coolant to gradually change its flow direction, the flow separation point moves backward, the wake region shrinks, and the pressure drop loss decreases. The side surface area of ​​the elliptical turbulence column 6 is larger than that of a circular cylinder with the same cross-sectional area, increasing the contact area between the coolant and the surface of the turbulence column 6. The surface of the turbulence column 6 participates in heat exchange, and heat is directly transferred from the wall of the turbulence column 6 to the coolant, enhancing the heat exchange effect.

[0030] The scheme is further optimized so that the turbulence columns 6 are arranged in multiple rows and columns in the independent flow channel 2. The turbulence columns 6 in adjacent rows are staggered and the turbulence columns 6 in adjacent columns are aligned. The turbulence columns 6 in each row are arranged at intervals along the extension direction of the independent flow channel 2 and the turbulence columns 6 in each column are arranged at intervals along the width direction of the independent flow channel 2.

[0031] The turbulence columns 6 are arranged in a multi-row, multi-column array, with adjacent rows staggered and adjacent columns aligned. After the coolant flows through the first row of turbulence columns 6, it continues to flow forward in the gaps between the columns. Due to the staggered arrangement of the second row of turbulence columns 6, the main flow at the gaps in the first row directly impacts the upstream surface of the second row of turbulence columns 6, forcing a change in flow direction and generating stronger turbulence and mixing. Each row of turbulence columns 6 is spaced apart along the flow channel direction. During the flow process, the coolant is repeatedly blocked and diverted by the turbulence columns 6, and the boundary layer is constantly disrupted and rebuilt, making it difficult to fully develop into a thick laminar flow. The aligned arrangement of adjacent columns allows each row of turbulence columns 6 to form a continuous guiding channel, guiding the coolant to flow orderly along the flow channel direction and avoiding additional resistance caused by chaotic flow.

[0032] The scheme is further optimized so that both the liquid inlet connector and the liquid outlet connector are quick-connect connectors. The liquid inlet connector and the liquid outlet connector are arranged at intervals along the length direction of the liquid cooling plate body 1. The liquid inlet connector is located above the liquid outlet connector. One end of the liquid inlet connector is inserted into the liquid cooling plate body 1 and communicates with the inlet collection cavity 5. One end of the liquid outlet connector is inserted into the liquid cooling plate body 1 and communicates with the outlet collection cavity 4.

[0033] Both the inlet and outlet connectors are quick-connect fittings. One end of each connector is inserted into the liquid cooling plate body 1, connecting to the inlet manifold 5 and outlet manifold 4 respectively, enabling rapid connection between the external piping and the internal flow channel. The two connectors are arranged vertically at intervals along the length of the liquid cooling plate body 1, with the inlet connector at the top and the outlet connector at the bottom, corresponding to the positions of the inlet manifold 5 and outlet manifold 4 respectively. The plug-in connection of the quick-connect fittings eliminates the need for additional tightening operations when connecting the liquid cooling plate to the external piping, making installation and disassembly convenient. The structure of the connectors inserting into the liquid cooling plate shortens the transition distance between the external piping and the internal flow channel, reducing abrupt changes in cross-section and local flow resistance losses at the connection point.

[0034] Further optimization of the design: the edge of the liquid cooling plate body 1 is provided with several mounting holes, which penetrate the upper and lower surfaces of the liquid cooling plate body 1 and are arranged at intervals along the circumference of the liquid cooling plate body 1.

[0035] Mounting holes, located along the edge of the liquid cooling plate body 1, penetrate the upper and lower surfaces and are spaced out circumferentially. These mounting holes are used for the fixed connection between the liquid cooling plate and the battery module housing or mounting base. Fasteners pass through these holes to press the liquid cooling plate firmly onto the mounting surface. The circumferential distribution of the mounting holes ensures that all sides of the liquid cooling plate are fixedly constrained, resulting in uniform stress on the plate and preventing warping or deformation caused by concentrated local stress. The mounting holes are located at the edge of the plate, without occupying the space for the central flow channel, ensuring that the flow channel extends fully within the effective heat exchange area of ​​the plate, and that the heat exchange area is not encroached upon by the mounting structure.

[0036] The scheme is further optimized so that the flow channel baffle 3 and the liquid cooling plate body 1 are integrally formed structures, and the turbulence column 6 and the liquid cooling plate body 1 are integrally formed structures.

[0037] The flow channel baffle 3 and the liquid cooling plate body 1 are integrally formed, as are the baffle column 6 and the liquid cooling plate body 1. This means the flow channel baffle 3, baffle column 6, and liquid cooling plate body 1 are made from the same material using the same processing technology, with no assembly interfaces between the components. This integrally formed structure eliminates connection gaps between components, preventing coolant leakage paths at these gaps. The integral forming of the flow channel baffle 3 with the body results in higher structural strength, enabling it to withstand the pressure difference of the coolant on both sides of the flow channel without deformation or displacement, ensuring the stability of the cross-sectional dimensions of each independent flow channel 2. The integral forming of the baffle column 6 with the body ensures reliable connection between the baffle column 6 and the bottom wall, preventing loosening and detachment due to long-term coolant scouring. Simultaneously, the continuous, interface-free heat conduction path of the integral structure ensures that heat transfer from the bottom wall to the baffle column 6 is unaffected by interface thermal resistance.

[0038] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 invention.

[0039] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure, characterized in that, include: The liquid cooling plate body (1) is a rectangular flat plate. At least two independent flow channels (2) are provided inside the liquid cooling plate body (1). The independent flow channels (2) are arranged in a serpentine manner inside the liquid cooling plate body (1). The cross-section of the independent flow channels (2) is rectangular. A flow channel partition (3) is provided between adjacent independent flow channels (2). The flow channel partition (3) is arranged along the extension direction of the independent flow channels (2). The two sides of the flow channel partition (3) are respectively connected to the side walls of the adjacent independent flow channels (2). An inlet collecting cavity (5) and an outlet collecting cavity (4) are provided inside the liquid cooling plate body (1). The inlet collecting cavity (5) and the outlet collecting cavity (4) are located at the same end of the independent flow channels (2). The inlet collecting cavity (5) is connected to the liquid inlet end of the independent flow channel (2). The outlet collecting cavity (4) is connected to the liquid outlet end of the independent flow channel (2). A turbulence structure is provided inside the independent flow channel (2). The turbulence structure includes a plurality of turbulence columns (6). The turbulence columns (6) are fixed on the bottom wall of the independent flow channel (2). The turbulence columns (6) are arranged at intervals along the extension direction of the independent flow channel (2). The top of the turbulence columns (6) is in contact with the top wall of the independent flow channel (2). The connector assembly (7) is fixed on one side end face of the liquid cooling plate body (1). The connector assembly (7) includes an inlet connector and an outlet connector. The inlet connector is connected to the inlet collection chamber (5), and the outlet connector is connected to the outlet collection chamber (4).

2. The power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure according to claim 1, characterized in that, The liquid cooling plate body (1) includes an upper cover plate and a lower base plate. The upper cover plate covers the lower base plate. The lower surface of the upper cover plate is in contact with the upper surface of the lower base plate. The edge of the upper cover plate is connected to the edge of the lower base plate. The independent flow channel (2) is disposed on the upper surface of the lower base plate. The lower surface of the upper cover plate is in contact with the top of the independent flow channel (2).

3. The power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure according to claim 1, characterized in that, The independent flow channel (2) includes a first independent flow channel (2) and a second independent flow channel (2). The first independent flow channel (2) and the second independent flow channel (2) are arranged side by side along the width direction of the liquid cooling plate body (1). The flow channel partition (3) is located between the first independent flow channel (2) and the second independent flow channel (2). One side of the flow channel partition (3) is connected to the side wall of the first independent flow channel (2), and the other side of the flow channel partition (3) is connected to the side wall of the second independent flow channel (2). The liquid inlet end of the first independent flow channel (2) and the liquid inlet end of the second independent flow channel (2) are both connected to the inlet collection cavity (5). The liquid outlet end of the first independent flow channel (2) and the liquid outlet end of the second independent flow channel (2) are both connected to the outlet collection cavity (4).

4. The power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure according to claim 1, characterized in that, The turbulence column (6) is an elliptical column. The major axis of the turbulence column (6) is arranged along the extension direction of the independent flow channel (2), and the minor axis of the turbulence column (6) is arranged along the width direction of the independent flow channel (2). The bottom of the turbulence column (6) is connected to the bottom wall of the independent flow channel (2).

5. The power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure according to claim 1, characterized in that, The turbulence columns (6) are arranged in multiple rows and columns within the independent flow channel (2). The turbulence columns (6) in adjacent rows are staggered, and the turbulence columns (6) in adjacent columns are aligned. The turbulence columns (6) in each row are spaced apart along the extension direction of the independent flow channel (2), and the turbulence columns (6) in each column are spaced apart along the width direction of the independent flow channel (2).

6. The power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure according to claim 1, characterized in that, Both the liquid inlet connector and the liquid outlet connector are quick-connect connectors. The liquid inlet connector and the liquid outlet connector are arranged at intervals along the length direction of the liquid cooling plate body (1). The liquid inlet connector is located above the liquid outlet connector. One end of the liquid inlet connector is inserted into the liquid cooling plate body (1) and communicates with the inlet collection cavity (5). One end of the liquid outlet connector is inserted into the liquid cooling plate body (1) and communicates with the outlet collection cavity (4).

7. The power battery liquid cooling plate assembly with partitioned independent flow channels and a turbulence structure according to claim 1, characterized in that, The liquid cooling plate body (1) has a plurality of mounting holes on its edge. The mounting holes penetrate the upper and lower surfaces of the liquid cooling plate body (1) and are arranged at intervals along the circumference of the liquid cooling plate body (1).

8. The power battery liquid cooling plate assembly with partitioned independent flow channels and turbulence structure according to claim 1, characterized in that, The flow channel baffle (3) and the liquid cooling plate body (1) are integrally formed, and the turbulence column (6) and the liquid cooling plate body (1) are integrally formed.

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