Intelligent and efficient liquid cooling scheduling method and system for charging pile based on partitioned cold plate

Abstract

The application discloses a charging pile intelligent efficient liquid cooling scheduling method and system based on a partitioned cold plate, relates to the technical field of liquid cooling heat dissipation and intelligent regulation and control, and solves the problems of cooling structure sensing loss and regulation lag in the multi-node parallel operation of a high-power fast charging pile, and insufficient cooling in a high-temperature area.

Description

Technical Field

[0001] This invention relates to the field of liquid cooling heat dissipation and intelligent control technology, specifically to a smart and efficient liquid cooling scheduling method and system for charging piles based on partitioned cold plates. Background Technology

[0002] As the power density of charging piles continues to increase, core components such as IGBT modules, high-frequency transformers, and main control circuit boards generate a large amount of heat under continuous high load operation, and traditional air cooling methods are insufficient to meet the rapid heat dissipation requirements. Liquid cooling, as a more efficient heat dissipation method, has been gradually applied to high-power fast charging piles, and the partitioned cold plate structure has become an important form of liquid cooling layout because it can directionally attach heat sources and improve heat dissipation efficiency.

[0003] For example, invention patent CN117453024A discloses a heat exchange scheduling method, server, device, equipment, and medium for a liquid-cooled server. The method includes: acquiring the temperatures of the cooling unit, the displacement unit, and the computing unit of the liquid-cooled server; identifying suspected units to be controlled when the temperatures of the cooling unit, the displacement unit, and the computing unit rise above preset values; acquiring the temperature of the suspected units to be controlled in real time; and switching the liquid-cooled server from operating mode to heat exchange scheduling mode when the temperature of the suspected units exceeds a preset temperature threshold; and activating the displacement unit and / or the liquid-cooled server's displacement unit according to a preset scheduling strategy to achieve heat exchange scheduling of the liquid-cooled server.

[0004] For example, invention patent CN112764496B discloses a liquid cooling system implementation method and system, based on a coolant reservoir for housing electronic heating components and a coolant return tank. The method includes monitoring the temperature T1 of the coolant reservoir; monitoring the core temperature T2 of the heating component operating in the coolant reservoir; controlling the coolant outflow rate of the coolant reservoir and the coolant return rate of the coolant return tank when the difference T between the core temperature T2 and the temperature T1 is less than a first preset temperature and the core temperature T2 is greater than a second preset temperature; and controlling the coolant outflow rate of the coolant reservoir and / or the coolant return rate of the coolant return tank when the difference T between the core temperature T2 and the temperature T1 is greater than a third preset temperature. This avoids excessively high temperatures in the electronic heating components and reasonably controls their power consumption.

[0005] Existing liquid cooling systems are mostly based on fixed partition structures and static flow distribution, lacking the ability to dynamically respond to differences in heat load in different heat source areas. They cannot flexibly adjust the cooling path and liquid supply sequence according to real-time temperature and flow status, often resulting in insufficient cooling in some high-heat areas and energy waste in low-heat areas, affecting the overall heat dissipation performance and system stability.

[0006] To address the above issues, there is an urgent need for a smart and efficient liquid-cooled scheduling method and system for charging piles based on partitioned cold plates. Summary of the Invention

[0007] Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a smart and efficient liquid cooling scheduling method and system for charging piles based on partitioned cold plates. This solves the problem of insufficient cooling in high-heat areas caused by the lack of sensing and lag in the cooling structure during the parallel operation of multiple nodes in high-power fast charging piles.

[0009] Technical solution

[0010] To achieve the above objectives, the present invention provides the following technical solution: a smart and efficient liquid cooling scheduling method for charging piles based on partitioned cold plates, comprising the following steps: S1: collecting the temperature and flow status of each core heat source area, constructing a partitioned thermal parameter dataset and performing preprocessing; S2: constructing cooling partitions for different heat source structures, dynamically dividing the liquid supply priority based on the heat flow response characteristics extracted from the partitioned thermal parameter dataset, switching the liquid supply path according to the liquid supply priority and adjusting the cooling partition connection structure; S3: evaluating whether the heat flow distribution is balanced based on the cooling partition connection structure and liquid supply priority, clarifying the control hierarchy structure, rearranging the liquid supply rhythm and constraining the adjustment range according to the control hierarchy structure; S4: combining the control hierarchy structure and liquid supply sequence, identifying the cooling pressure differences in each area, and adjusting the flow path connection relationship and liquid supply scheduling participation status in a hierarchical manner.

[0011] Furthermore, the specific steps for collecting the temperature and flow status of each core heat source region, constructing a partitioned thermal parameter dataset, and performing preprocessing are as follows: The process of collecting the temperature and flow status of each core heat source region and constructing a partitioned thermal parameter dataset includes: temperature sensors at the cold plate outlet and inlet recording the temperature values ​​before and after heat exchange, respectively, to form the partitioned cold plate inlet temperature and partitioned cold plate outlet temperature; flow meters in each cold plate branch monitoring the cumulative change in liquid volume per unit time, corresponding to the cold plate partition flow rate; temperature sensors installed at the inlet and outlet of the main channel in the current region to sense the instantaneous temperature of the coolant flowing through the channel, recording the current region's coolant inlet temperature and current region's coolant outlet temperature; and miniature flow meters in the current region's cooling branch reading the liquid flow cross-section in real time. The volumetric flow rate is used to determine the current regional flow rate. Miniature flow sensors deployed in adjacent cooling zones synchronously record the liquid volume change per unit time in the branch, forming the flow rate of the adjacent region. A time series structure of multi-channel temperature and flow fields is constructed for each cooling zone, and alignment processing is performed on all fields based on the sampling timestamp. Abnormal data segments caused by gas-liquid disturbance, pipeline stagnation, and instantaneous sensor failure are eliminated using the difference between the rate of change and adjacent sampling points as the criterion. For areas with short-term missing data, a joint interpolation strategy of adjacent channel flow trend alignment and temperature slope extrapolation is used to repair them. Under the premise of ensuring structural continuity, an exponential weighting strategy within the sliding interval is applied to perform dynamic smoothing processing on all fields. Finally, the partitioned thermal parameter dataset is standardized and normalized.

[0012] Furthermore, the specific steps for constructing cooling zones for different heat source structures are as follows: the cooling area corresponding to the IGBT module is configured as a microchannel cold plate structure, with the cold plate structure directly attached to the chip's heating surface, forming a priority adjustment zone; the cooling area corresponding to the high-frequency transformer is configured as a semi-enclosed cold plate structure, with cooling channels arranged along the outer periphery of the casing, forming a medium-stability zone; the cooling area corresponding to the main control circuit board is configured as a flat cold plate structure, covering the circuit board surface to form a uniform heat conduction interface, forming a basic stability zone; the cable conductor area is configured as a double-layer phase change cooling structure, with coolant flowing sequentially through the conductor layer and the outer surrounding layer, forming a flexible partition structure.

[0013] Furthermore, the specific steps for dynamically dividing the liquid supply priority based on the heat flow response characteristics extracted from the partitioned thermal parameter dataset are as follows: Statistics are performed on all installed cooling units with independent heat dissipation functions and heat flow response characteristics to obtain the number of heat flow response partitions; the partitioned cold plate outlet temperature, partitioned cold plate inlet temperature, and cold plate partition flow rate are retrieved from the partitioned thermal parameter dataset; the contact interface contour of the heat-generating device in the cold plate structure drawing is analyzed, and the effective contact length of the cold plate along the heat conduction direction is extracted; the difference between the partitioned cold plate outlet temperature and the partitioned cold plate inlet temperature represents the target partition temperature rise amplitude; the target partition temperature rise amplitude is divided by the cold plate partition flow rate and then multiplied by the effective contact length of the cold plate to form the heat flow response expression of the cold plate partition; the heat flow response expressions of all partitions are added sequentially to obtain the total heat flow response expression; the total heat flow response expression is divided by the number of heat flow response partitions to obtain the final cold plate heat flow response value; the liquid supply priority is dynamically divided based on the size of the cold plate heat flow response value of each partition.

[0014] Furthermore, the specific steps for switching the liquid supply path and adjusting the cooling zone connection structure based on the liquid supply priority are as follows: The liquid supply channel configuration strategy is executed in stages based on the cold plate heat response value: the cold plate heat response value is compared with the heat response threshold in real time; when the cold plate heat response value is greater than or equal to the heat response threshold, the cold plate zone is assigned to the priority area in the liquid supply scheduling sequence, the parallel branch of the cooling channel connected to the cold plate zone is activated, the cold plate zone is switched to the main pump high-pressure outlet channel, and the liquid supply reference flow rate of the main pump towards the cold plate zone is increased. The liquid supply reference flow rate is the minimum initial output flow rate level provided by the main pump towards the priority area in a complete liquid supply scheduling; when the cold plate heat response value is less than the heat response threshold, the cold plate zone is removed from the current liquid supply scheduling sequence, the cold plate zone is connected to the atmospheric pressure circulation branch, and switched to the basic liquid supply state, retaining only the minimum continuous flow of coolant.

[0015] Furthermore, the specific steps for evaluating the heat flow distribution balance and clarifying the control hierarchy based on the cooling zone connection structure and liquid supply priority are as follows: Based on the cooling zone connection structure and liquid supply priority, construct a cooling load identification logic; calculate the difference between the zone cold plate outlet temperature and the zone cold plate inlet temperature to obtain the target zone temperature rise amplitude; number and label each configured cold plate zone in the cooling structure according to the physical connection order; based on the number correspondence in the cold plate zone flow set, extract the flow field corresponding to the target zone number to obtain the target zone flow; filter and structure data segments showing continuous trends in coolant temperature and flow without abrupt fluctuations during past equipment operation, and organize them by zone number to form historical stable operation samples; calculate the difference between the cold plate outlet temperature and the cold plate inlet temperature of each zone in the historical stable operation samples, and average the difference sequence to obtain the reference state temperature rise amplitude; in the historical stable operation... The flow sensor data at the inlet of each cooling zone is extracted from the sample according to the zone number and averaged to obtain the reference state flow rate. The total number of cooling zones installed in the current liquid cooling structure is counted to obtain the number of adaptation analysis zones. The real-time temperature-flow ratio is obtained by dividing the temperature rise amplitude of the target zone by the flow rate of the target zone. The reference state temperature rise amplitude is obtained by dividing the reference state flow rate by the reference state flow rate. The temperature rise deviation per unit flow rate is obtained by subtracting the real-time temperature-flow ratio from the reference temperature-flow ratio. The temperature rise deviation per unit flow rate is squared to obtain the square value of the temperature rise ratio deviation. The square values ​​of the temperature rise ratio deviations of all cooling zones are summed sequentially to calculate the total deviation sum of squares. The total deviation sum of squares is divided by the number of adaptation analysis zones to calculate the average deviation sum of squares. The square root of the average deviation sum of squares is obtained to obtain the cooling adaptation deviation value. The cooling adaptation deviation value is used to evaluate whether the heat flow distribution is balanced, and the magnitude of the cooling adaptation deviation value is used as the basis for judging the division of the control and control structure.

[0016] Furthermore, the specific steps for rearranging the liquid supply rhythm and constraining the adjustment range according to the hierarchical control structure are as follows: Execute the liquid supply control strategy according to the hierarchical control structure: Real-time comparison of the cooling adaptation deviation value and the adaptation deviation threshold, where the adaptation deviation threshold includes a primary deviation threshold and a secondary deviation threshold; When the cooling adaptation deviation value is greater than or equal to the primary deviation threshold, rearrange the liquid supply priority order of all cooling zones, connect the target zone to the main pump's high-pressure liquid supply branch, shorten the main pump's liquid supply cycle, where the main pump's liquid supply cycle refers to the number of scheduling rounds the main pump undergoes to complete one closed-loop process of coolant distribution and return to all target zones, increasing the frequency of target zone's scheduling participation; When the cooling adaptation deviation value is greater than the secondary deviation threshold but less than the primary deviation threshold, adjust the target zone's ranking position in the current scheduling round, extend the duration of liquid supply to the target zone, and reduce the liquid supply ratio of non-target zones; When the cooling adaptation deviation value is less than or equal to the secondary deviation threshold, fix the liquid supply scheduling configuration of all zones, maintain the main pump's basic flow output state, and suspend the flow adjustment operation in this round of scheduling.

[0017] Furthermore, the specific steps for identifying the cooling pressure differences in each region by combining the control of the graded structure and the liquid supply sequence are as follows: Read the coolant outlet temperature and coolant inlet temperature of the current region and calculate the difference to obtain the temperature rise amplitude of the current region; obtain the flow rate of the current region and the flow rate of adjacent regions; extract the heat flow direction thickness parameter from the cold plate structure drawing of the current cooling region to obtain the heat conduction path length; consult the thermal performance data table and material property database of the material used in the current cold plate to obtain the material thermal conductivity; extract the bonding interface that coincides with the heat source entity in the cold plate structure drawing. The surface profile is determined, and the projected area of ​​the bonding interface in the vertical heat flow direction is calculated to obtain the bonding contact area. Based on the controlled hierarchical structure and liquid supply sequence, the zone flow gain value is calculated: the temperature rise amplitude of the current region is divided by the current region flow rate to represent the temperature rise intensity; the thermal conductivity of the material is multiplied by the bonding contact area and then divided by the heat conduction path length to form the thermal conductivity expression; the temperature rise intensity is multiplied by the thermal conductivity expression and the square root is taken; the ratio of the current region flow rate to the flow rate of the adjacent region is added by one and the natural logarithm is taken; the square root result is multiplied by the logarithm to obtain the zone flow gain value.

[0018] Furthermore, the specific steps for adjusting the flow path connection relationship and liquid supply scheduling participation status in a graded manner are as follows: The flow path control strategy is executed in stages based on the partition flow gain value: the partition flow gain value is compared with the flow gain threshold in real time, the flow gain threshold including a primary gain threshold and a secondary gain threshold; when the partition flow gain value is greater than or equal to the primary gain threshold, the current partition is switched to a main pump direct supply structure, the parallel connection with other partitions is terminated, an independent cooling circuit is enabled, and the flow connection with adjacent partitions is disconnected; when the partition flow gain value is greater than the secondary gain threshold but less than the primary gain threshold, the current partition is included in the next round of scheduling candidate sequence, the flow path structure remains unchanged, and participation in subsequent scheduling is allowed; when the partition flow gain value is less than or equal to the secondary gain threshold, the flow path structure is fixed, and liquid supply adjustment is stopped.

[0019] The second aspect of this invention provides an intelligent and efficient liquid cooling scheduling system for charging piles based on partitioned cold plates, comprising: a thermal parameter data acquisition module, a cold plate area control module, a temperature-flow joint analysis module, and a multi-path flow regulation module. The system is characterized in that: the thermal parameter data acquisition module is used to collect the temperature and flow status of each core heat source area, construct a partitioned thermal parameter dataset, and perform preprocessing; the cold plate area control module is used to construct cooling partitions for different heat source structures, dynamically divide the liquid supply priority based on the heat flow response characteristics extracted from the partitioned thermal parameter dataset, switch the liquid supply path according to the liquid supply priority, and adjust the cooling partition connection structure; the temperature-flow joint analysis module is used to evaluate whether the heat flow distribution is balanced and clarify the control hierarchy structure based on the cooling partition connection structure and liquid supply priority, rearrange the liquid supply rhythm according to the control hierarchy structure, and constrain the adjustment amplitude; the multi-path flow regulation module is used to identify the cooling pressure differences in each area by combining the control hierarchy structure and the liquid supply sequence, and adjust the flow path connection relationship and liquid supply scheduling participation status in a hierarchical manner.

[0020] Beneficial effects

[0021] The present invention has the following beneficial effects:

[0022] (1) By constructing a partitioned thermal parameter dataset and performing multi-channel time series alignment, anomaly removal, interpolation repair and normalization processing, this invention ensures the structural continuity and numerical consistency of the temperature flow sensing data, avoids the control logic error caused by gas-liquid disturbance and local failure, and provides a unified and high-fidelity input basis for subsequent scheduling calculations.

[0023] (2) By combining the physical bonding method of different cold plate structures with the expression of heat flow response, this invention constructs a cooling zone system that can dynamically divide the liquid supply priority according to the real-time change of heat load, realizes the structural perception and real-time response linkage of the zoned cooling strategy, and enhances the pertinence and adaptability of cooling configuration.

[0024] (3) The present invention uses cooling adaptation deviation value as the core indicator to construct a unified heat flow balance evaluation logic, which supports automatic rearrangement of liquid supply sequence, adjustment of flow output rhythm and control of regulation frequency when the cooling state deviates from the ideal benchmark conditions, effectively improving the adaptability of regulation behavior to the regional temperature flow coupling state.

[0025] (4) By calculating the partition flow gain value of each region and setting a two-level response threshold, the present invention realizes the hierarchical identification of the cooling pressure difference of each partition and the automatic adjustment of the multi-path connection relationship, ensuring the priority switching capability of the liquid supply path in the high heat zone, while suppressing redundant cooling in the low heat zone, forming a cooling distribution control system with rhythm perception and spatial response capabilities.

[0026] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] Figure 1 This is a flowchart of the intelligent and efficient liquid cooling scheduling method for charging piles based on partitioned cold plates according to the present invention.

[0028] Figure 2 This is a structural diagram of the intelligent and efficient liquid-cooled scheduling system for charging piles based on partitioned cold plates according to the present invention.

[0029] Figure 3 This is a distribution diagram of the cooling adaptation deviation values ​​of the present invention;

[0030] Figure 4 This is a simplified structural diagram of the charging pile of the present invention;

[0031] Figure 5 This is a diagram of the double-layer structure of the gun barrel of the present invention;

[0032] Figure 6 This is a flowchart of the cooling control process of the present invention.

[0033] In the diagram, 1 is the cold plate; 2 is the heating element; 3 is the barrel; and 4 is the nozzle. Detailed Implementation

[0034] 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.

[0035] Please see Figures 1-6 This invention provides a technical solution: a smart and efficient liquid cooling scheduling method for charging piles based on partitioned cold plates, comprising the following steps: S1: collecting the temperature and flow status of each core heat source area, constructing a partitioned thermal parameter dataset and performing preprocessing; S2: constructing cooling partitions for different heat source structures, dynamically dividing the liquid supply priority based on the heat flow response characteristics extracted from the partitioned thermal parameter dataset, switching the liquid supply path according to the liquid supply priority and adjusting the cooling partition connection structure; S3: evaluating whether the heat flow distribution is balanced based on the cooling partition connection structure and liquid supply priority, clarifying the control hierarchy structure, rearranging the liquid supply rhythm and constraining the adjustment range according to the control hierarchy structure; S4: combining the control hierarchy structure and liquid supply sequence, identifying the cooling pressure differences in each area, and adjusting the flow path connection relationship and liquid supply scheduling participation status in a hierarchical manner.

[0036] Specifically, the process of collecting temperature and flow status data for each core heat source region, constructing a partitioned thermal parameter dataset, and preprocessing the dataset includes the following steps: Temperature sensors are installed at the inlet and outlet of each cold plate to continuously record the temperature changes of the coolant before and after entering and leaving the cold plate, thus forming the partitioned cold plate inlet temperature and outlet temperature; flow meters are installed in each cold plate branch to measure the cumulative change in liquid volume per unit time and extract the corresponding cold plate partition flow rate; temperature sensors are installed at the inlet and outlet of the main channel in the current region to monitor the instantaneous temperature response of the coolant as it flows through, recording the current region's coolant inlet temperature and outlet temperature; miniature flow meters are embedded in the cooling branches of the current region to read the volumetric velocity data of the liquid on the cross-section in real time and determine the current region's flow rate; miniature flow sensors are installed in adjacent cooling regions, and the changes in liquid volume in the branches per unit time are collected in parallel to form the adjacent region flow rate; according to each cold plate... The system establishes multi-channel temperature and flow fields for each region, including the inlet and outlet temperatures of the cold plates in each region, the flow rate of the cold plate zone, the inlet and outlet temperatures of the coolant in the current region, the flow rate of the current region, and the flow rates of neighboring regions. Multi-field alignment is performed based on timestamps to construct a unified time series representation. Abnormal data segments caused by gas-liquid disturbances, local stagnation, and momentary sensor failures are identified and removed based on the rate of change of fields and the difference between adjacent sampling points. For continuous interruptions and missing fields, the system comprehensively utilizes the flow trends of neighboring channels and the temperature slope of the corresponding time period for extrapolation prediction, employing a joint interpolation method to repair short-term data gaps. After structural repair, a sliding time window range is set, and an exponential weighting strategy is applied to each field value to improve dynamic smoothing and reduce the impact of sampling fluctuations. Finally, the complete regional thermal parameter dataset is standardized according to a unified scale standard, and a linear compression strategy is used to complete the normalization mapping, forming a data structure foundation with computational input value.

[0037] This implementation scheme achieves structured representation and high-precision restoration of zoned thermal parameter data, ensures synchronous alignment and continuous integrity of temperature and flow fields in each cooling zone in the time dimension, improves the accuracy of outlier removal and missing segment repair, enhances the stability and computational adaptability of data under fluctuating conditions, and provides a unified, continuous, and standardized data foundation for subsequent cooling scheduling calculations.

[0038] Specifically, the steps for constructing cooling zones for different heat source structures are as follows: The cooling area corresponding to the IGBT module is configured as a microchannel cold plate structure. The microchannel cold plate integrates high-density flow channel units within a limited structural space to achieve directional and rapid heat exchange in high heat flux areas. The cold plate structure is directly attached to the chip heating surface, forming a priority adjustment zone. The cooling area corresponding to the high-frequency transformer is configured as a semi-enclosed cold plate structure. The cooling channels are arranged along the outer periphery of the shell, and an annular buffer zone is formed between the fluid coverage surface and the structural contact surface to enhance heat exchange stability, forming a medium-stability zone. The cooling area corresponding to the main control circuit board is configured as a flat cold plate structure. The cold plate structure covers the circuit board surface to form a uniform heat conduction interface, and the overall heat exchange uniformity is improved by expanding the contact area, forming a basic stability zone. The cable conductor area is configured as a double-layer phase change cooling structure. The coolant flows sequentially through the conductor patch layer and the outer surrounding layer. A heat insulation buffer layer is set between the patch layer and the surrounding layer to effectively control the mixing and backflow effect of the cold liquid and hot liquid boundary area, forming a flexible zone structure.

[0039] In this implementation scheme, a physical adaptation mapping between the cooling area and the heat source structure is realized, a zoned cooling configuration with different response priorities is established, the bonding strength and thermal conductivity of the cooling structure corresponding to various heat sources are enhanced, the heat dissipation balance and adjustment sensitivity at the zone level are improved, and a structural foundation is provided for subsequent zoned control and dynamic response.

[0040] Specifically, the steps for dynamically prioritizing liquid supply based on the heat flow response characteristics extracted from the partitioned thermal parameter dataset are as follows: 1. Statistically analyze all installed cooling units with independent heat dissipation functions and heat flow response characteristics to determine the number of partitions currently capable of liquid supply regulation, thus obtaining the number of heat flow response partitions; 2. Retrieve the partitioned cold plate outlet temperature, partitioned cold plate inlet temperature, and cold plate partition flow rate from the partitioned thermal parameter dataset as real-time inputs for the heat exchange status of each partition; 3. Analyze the contact interface contours of the heat-generating devices in the cold plate structural drawings, and extract the linear length of the contact interface along the heat conduction direction based on the main heat flow direction to obtain the effective contact length of the cold plate, used to quantify the heat flow guiding capability; 4. Analyze the partitioned cold plate outlet temperature and partitioned cold plate inlet temperature... The temperature difference is extracted as the temperature rise, representing the temperature rise amplitude of the target zone. The temperature rise amplitude of the target zone is divided by the flow rate of the cold plate zone to calculate the heat absorption capacity per unit flow rate. This is then multiplied by the effective contact length of the cold plate to form the thermal flux response expression of the cold plate zone, comprehensively reflecting the regional heat load intensity and heat conduction flux characteristics under unit liquid supply conditions. The thermal flux response expressions of all zones are summed sequentially to obtain the total thermal flux response expression. The average response level is calculated using the number of thermal flux response zones as the denominator to obtain the final cold plate thermal flux response value. Based on the magnitude of the cold plate thermal flux response value corresponding to each zone, a dynamic sorting list is established. The liquid supply priority is divided in real time according to the sorting results, and the output is the basic judgment basis for controlling the adjustment state of the cooling structure.

[0041] The specific calculation method for the heat flux response value of the cold plate is as follows:

[0042]

[0043] In the formula, This indicates the thermal flux response value of the cold plate. Indicates the outlet temperature of the cold plate in the partition. Indicates the inlet temperature of the cold plate in the partition. Indicates the flow rate of the cold plate partition. Indicates the effective contact length of the cold plate. This indicates the number of thermal response partitions.

[0044] In this implementation plan, the heat dissipation capacity of the cold plate is quantitatively expressed and prioritized. A control criterion based on the heat flow response value is constructed to improve the accuracy of identifying the cooling demand intensity of different heat source areas. It supports the division of liquid supply priority queues on demand and enhances the dynamic matching capability and allocation rationality of cooling resources between zones.

[0045] Specifically, the steps for switching the liquid supply path and adjusting the cooling zone connection structure based on the liquid supply priority are as follows: The liquid supply channel configuration strategy is executed in stages according to the cold plate heat flux response value. The heat flux response value of each zone is compared with the set heat flux response threshold in real time to dynamically determine the current liquid supply demand status. When the cold plate heat flux response value is greater than or equal to the heat flux response threshold, the cold plate zone is assigned to the priority area in the liquid supply scheduling sequence. The parallel branch of the cooling channel connected to this zone is called and set to active path status. The cold plate zone is switched to the high-pressure outlet channel of the main pump to establish a high-pressure direct supply structure to meet the cooling demand under high heat flux intensity. Simultaneously, the liquid supply reference flow rate of the main pump towards the cold plate zone is increased. The liquid supply reference flow rate is the minimum initial output flow rate level provided by the main pump towards the priority area within a complete liquid supply scheduling cycle to ensure the minimum liquid supply guarantee boundary. When the cold plate heat flux response value is less than the heat flux response threshold, the cold plate zone is removed from the current liquid supply scheduling sequence and connected to the atmospheric pressure circulation branch, switching to basic liquid supply status. Only the minimum continuous flow path of coolant in this zone is retained to suppress ineffective cooling resource occupation and maintain basic thermal balance.

[0046] In this implementation scheme, dynamic adjustment of the cooling zone connection structure based on the thermal response status is realized, a linkage relationship between liquid supply priority and path structure is established, the accessibility and adjustment intensity of liquid supply in high heat intensity areas are improved, the cooling resource allocation ratio in low heat load areas is reduced, and the response accuracy and resource utilization efficiency of liquid supply scheduling to differences in heat and cold distribution are enhanced.

[0047] Specifically, based on the cooling zone connection structure and liquid supply priority, the following steps are taken to assess whether the heat flow distribution is balanced and to clarify the control hierarchy structure: Based on the cooling zone connection structure and liquid supply priority, a cooling load identification logic is constructed to establish the correspondence between the current heat load state and the liquid supply resource configuration; the difference between the zone cold plate outlet temperature and the zone cold plate inlet temperature is calculated to obtain the target zone temperature rise amplitude, reflecting the coupling strength between the current cooling effect and the heat source output; each configured cold plate zone in the cooling structure is numbered according to its physical connection order to establish a zone sequence structure; based on the number correspondence in the cold plate zone flow set, the flow field corresponding to the target zone number is extracted to obtain the target zone flow; data segments showing continuous trends in coolant temperature and flow without abrupt fluctuations during past equipment operation are screened and structured, and then organized by zone number to form historical stable operation samples; the difference between the cold plate outlet temperature and the cold plate inlet temperature of each zone in the historical stable operation samples is calculated, and the average of the difference sequence is taken to obtain the reference state temperature rise amplitude; in the historical... In the stable operation sample, flow sensor data at the inlet of the cooling zone is extracted according to the zone number and averaged to obtain the reference state flow rate; the total number of all installed cooling zones in the current liquid cooling structure is counted to obtain the number of adaptation analysis zones; the real-time temperature-flow ratio is obtained by dividing the target zone temperature rise amplitude by the target zone flow rate; the reference state temperature rise amplitude is obtained by dividing the reference state flow rate by the reference state flow rate; the real-time temperature-flow ratio is subtracted from the reference temperature-flow ratio to obtain the unit flow rate temperature rise deviation; the unit flow rate temperature rise deviation is squared to obtain the temperature rise ratio deviation square value; the temperature rise ratio deviation square values ​​of all cooling zones are summed sequentially to calculate the total deviation square value; the total deviation square value is divided by the number of adaptation analysis zones to calculate the average deviation square value; the square root of the average deviation square value is obtained to obtain the cooling adaptation deviation value; the cooling adaptation deviation value is used as a quantitative indicator of heat flow distribution uniformity to comprehensively judge the adaptation degree of the current liquid supply structure, and the magnitude of the cooling adaptation deviation value is used as the basis for judging the classification of the control level structure, supporting differentiated settings of control intensity and rhythm.

[0048] The specific calculation method for the cooling adaptation deviation value is as follows:

[0049]

[0050] In the formula, This indicates the cooling adaptation deviation value. Indicates the temperature rise of the target zone. Indicates the temperature rise under reference conditions. Indicates reference state traffic. Indicates the target partition traffic. This indicates the number of partitions to be adapted for analysis.

[0051] Table 1 shows the cooling adaptation deviation value data table provided in the embodiments of this application. The target partition temperature rise of partition 1 is set to 3.0, the target partition flow rate is set to 9.0, the reference state temperature rise is set to 5.0, and the reference state flow rate is set to 10.0; the target partition temperature rise of partition 2 is set to 6.0, the target partition flow rate is set to 13.0, the reference state temperature rise is set to 5.0, and the reference state flow rate is set to 10.0; the target partition temperature rise of partition 3 is set to 7.0, the target partition flow rate is set to 10.0, the reference state temperature rise is set to 5.0, and the reference state flow rate is set to 10.0; the target partition temperature rise of partition 4 is set to 4.0, the target partition flow rate is set to 6.0, the reference state temperature rise is set to 5.0, and the reference state flow rate is set to 10.0; the target partition temperature rise of partition 5 is set to 6.0, the target partition flow rate is set to 15.0, the reference state temperature rise is set to 5.0, and the reference state flow rate is set to 10.0.

[0052] Table 1 Cooling Adaptation Deviation Data Table

[0053]

[0054] like Figure 3 The figure shows the distribution of cooling adaptation deviation values ​​provided in the embodiments of this application. According to the data in the image and table, the first-level deviation threshold is 0.0300, the second-level deviation threshold is 0.0200, and the cooling adaptation deviation values ​​of the five cooling zones fluctuate between 0.0016 and 0.0400, showing an overall distribution trend of being higher in the middle and lower on both sides. The cooling adaptation deviation value of zone 3 is 0.0400, significantly exceeding the first-level deviation threshold, and should be prioritized for adjustment; the deviation values ​​of zones 1 and 4 are both 0.0289, close to the first-level deviation threshold, and within the control boundary range; the deviation value of zone 5 is 0.0100, lower than the second-level deviation threshold, and the liquid supply structure can remain unchanged; the deviation value of zone 2 is 0.0016, the lowest among all zones, and has the lowest priority for control. This figure can intuitively reflect the heat flow adaptation status of each cooling area under the current operating conditions, providing a basis for rearranging the zone adjustment rhythm, limiting the liquid supply amplitude, and switching structures.

[0055] In this implementation plan, the quantitative assessment and control level classification of heat flow distribution status are realized, a comparison and judgment mechanism with cooling adaptation deviation value as the core is constructed, the identification accuracy of cold and hot load matching status is enhanced, the control level structure is dynamically determined at the partition level, and the responsiveness and control granularity of the liquid supply regulation scheme to the actual heat distribution differences are improved.

[0056] Specifically, the steps for rearranging the coolant supply rhythm and constraining the adjustment range according to the hierarchical control structure are as follows: Execute the coolant supply control strategy according to the hierarchical control structure, and compare the cooling adaptation deviation value with the adaptation deviation threshold in real time. The adaptation deviation threshold includes a first-level deviation threshold and a second-level deviation threshold. When the cooling adaptation deviation value is greater than or equal to the first-level deviation threshold, rearrange the coolant supply priority order of all cooling zones, update the priority identifier of the high-response area in the current scheduling cycle, connect the target zone to the main pump high-pressure coolant supply branch, and construct a priority coolant supply path. Shorten the main pump coolant supply cycle cycle. The main pump coolant supply cycle cycle refers to the number of scheduling rounds the main pump undergoes to complete one coolant distribution and return closed-loop process for all target zones. The lower limit of the cycle cycle shall not be less than two consecutive complete sampling cycles. The sampling cycle refers to the number of times the main pump completes one sampling of all configured temperature sensors and... The entire process of synchronous data acquisition, field alignment, and value writing operations of the flow sensor serves as the basic time unit for controlling the scheduling rhythm and data update frequency; it increases the scheduling participation frequency of the target partition, improving the effective liquid supply coverage of that partition in the scheduling queue; when the cooling adaptation deviation value is greater than the secondary deviation threshold but less than the primary deviation threshold, it adjusts the sorting position of the target partition in the current scheduling round, controls the sorting adjustment range based on the deviation amplitude, extends the liquid supply duration of the target partition, maintains the stability of coolant output, and at the same time reduces the liquid supply ratio of non-target partitions to suppress ineffective cooling output; when the cooling adaptation deviation value is less than or equal to the secondary deviation threshold, it fixes the liquid supply scheduling configuration of all partitions, maintains the basic flow output state of the main pump, suspends the flow adjustment operation in this round of scheduling, and maintains the steady-state operating conditions of the current cooling structure.

[0057] In this implementation plan, the rhythm control and participation intensity allocation of liquid supply scheduling are optimized, the cooling response is enhanced to the graded adaptability of deviation degree, the adjustment frequency and channel priority of target zones are increased, the main pump circulation frequency is limited to the lower limit of the sampling period, and the scheduling rhythm stability and the timing rationality of cooling resource allocation are ensured.

[0058] Specifically, combining the control tiered structure and the liquid supply sequence, the specific steps for identifying the cooling pressure differences in each region are as follows: Read the coolant outlet temperature and coolant inlet temperature of the current region and calculate their difference to obtain the temperature rise amplitude of the current region, which is used to measure the intensity of the coolant's heat absorption effect in that region; obtain the flow rate of the current region and the flow rate of adjacent regions as the flow input for comparative analysis of thermal distribution; extract the heat flow direction thickness parameter from the cold plate structure drawing of the current cooling region to obtain the heat conduction path length, reflecting the physical distance that heat travels in the cold plate; consult the thermal performance data table and material property database of the materials used in the current cold plate to obtain the material's thermal conductivity, representing the heat conduction capacity per unit thickness; extract the contour of the bonding interface that coincides with the heat source entity in the cold plate structure drawing, and calculate the vertical heat transfer coefficient of the bonding interface. The projected area along the flow direction is used to obtain the contact area, which serves as the effective area expression for the heat transfer interface. Based on the controlled hierarchical structure and liquid supply sequence, the zone flow gain value is calculated: the temperature rise amplitude of the current region is divided by the current region flow rate to obtain the temperature rise intensity, representing the degree of temperature rise per unit flow rate; the thermal conductivity of the material is multiplied by the contact area and then divided by the heat conduction path length to form a thermal conductivity expression, comprehensively reflecting the support capability of the structural material and form for heat conduction efficiency; the temperature rise intensity is multiplied by the thermal conductivity expression and the square root is taken to obtain the comprehensive thermal pressure response factor; the ratio of the current region flow rate to the flow rate of the adjacent region is added by one and the natural logarithm is taken to form the local flow difference adjustment factor; the square root result is multiplied by the logarithm to obtain the zone flow gain value, which serves as an important metric for identifying cooling pressure differences.

[0059] The specific calculation method for the partition traffic gain value is as follows:

[0060]

[0061] In the formula, This represents the partition traffic gain value. This indicates the current temperature rise in the region. Indicates the current regional traffic. Indicates the length of the heat conduction path. Indicates the thermal conductivity of a material. Indicates the contact area. This indicates the flow rate in the adjacent area.

[0062] In this implementation plan, a multi-factor comprehensive expression of cooling pressure differences was completed, and an identification mechanism with the zone flow gain value as the core was constructed. The temperature rise intensity, thermal conductivity and flow distribution deviation were integrated to achieve quantitative characterization of the thermal load differences between cooling zones, thereby improving the identification accuracy of high thermal pressure zones and the refinement of the control priority determination criteria.

[0063] Specifically, the steps for adjusting the flow path connection relationship and the participation status of the liquid supply scheduling in a graded manner are as follows: The flow path control strategy is executed in stages based on the zone flow gain value. The zone flow gain value is compared with the flow gain threshold in real time. The flow gain threshold includes a primary gain threshold and a secondary gain threshold. When the zone flow gain value is greater than or equal to the primary gain threshold, the current zone is switched to a direct supply structure from the main pump, the parallel connection with other zones is terminated, an independent cooling circuit is activated, and the flow connection with adjacent zones is disconnected. A control signal is simultaneously sent to the electric three-way valve, allowing the coolant from the main pump outlet to flow directly into the dedicated liquid supply channel of the target zone. The bypass valve closes, blocking the coolant exchange channel with the parallel branch. Simultaneously, the distribution manifold actuator is triggered to close the branch nodes of adjacent zones, forming a single liquid supply closed loop. Structure: A control interlock logic is set between the electric three-way valve and the bypass valve. When the three-way valve performs a switching action, the bypass valve automatically enters a mutually exclusive state to prevent flow interference caused by cross-switching of the liquid supply path. When the zone flow gain value is greater than the secondary gain threshold but less than the primary gain threshold, the current zone is included in the next round of scheduling candidate sequence, maintaining the current flow path connection structure unchanged. Both the electric three-way valve and the bypass valve are in a neutral holding state, allowing the zone to participate in the subsequent cycle's sorting and scheduling. When the zone flow gain value is less than or equal to the secondary gain threshold, the connection state of the zone is fixed as the current loop structure, liquid supply regulation operation on the zone is stopped, and the manifold actuator maintains the current opening and closing state of the diversion node unchanged, ensuring that liquid supply resources are concentrated for the high-heat zone and avoiding redundant flow waste.

[0064] In this implementation scheme, dynamic adjustment of the flow path structure driven by the zoned flow gain value is realized, an interlocking control relationship is established between the electric three-way valve, the bypass valve and the distribution manifold actuator, the independence and response strength of the liquid supply path in the high-heat zone are improved, the risk of flow interference in the low-heat zone in the parallel system is reduced, and the structural adaptability and connection configuration flexibility of the liquid supply scheduling to the cooling pressure difference are enhanced.

[0065] like Figure 2The diagram shows the structure of the intelligent and efficient liquid cooling scheduling system for charging piles based on partitioned cold plates provided in this application embodiment. This system applies an intelligent and efficient liquid cooling scheduling method for charging piles based on partitioned cold plates, including: a thermal parameter data acquisition module, a cold plate area control module, a temperature and flow joint analysis module, and a multi-path flow regulation module. The thermal parameter data acquisition module collects the temperature and flow status of each core heat source area, constructs a partitioned thermal parameter dataset, and performs preprocessing. Specifically, it synchronously collects, aligns, and removes anomalies from the cold plate inlet and outlet temperatures, branch flow rates, and temperature and flow information of the current and adjacent areas. It also improves data integrity and continuity through sliding interval weighting and interpolation repair. The cold plate area control module constructs cooling zones for different heat source structures, classifying microchannel cold plates, semi-enclosed cold plates, flat cold plates, and double-layer phase change structures into different types of zones based on their bonding characteristics, and combining the partitioned thermal parameters... The dataset extracts thermal response characteristics to dynamically classify liquid supply priorities, switches liquid supply paths based on these priorities, and adjusts the cooling zone connection structure. Multiple connection states are achieved through control of electric three-way valves, bypass valves, and distribution manifold actuators, including direct main pump supply, parallel retention, and independent disconnection. A temperature-flow joint analysis module assesses the balance of heat flow distribution and clarifies the control hierarchy based on the cooling zone connection structure and liquid supply priorities. It constructs control level criteria based on cooling adaptation deviation values, rearranges the liquid supply rhythm according to the control hierarchy structure, and constrains the adjustment range. Simultaneously, it sets a lower limit for the main pump's liquid supply cycle to avoid frequent scheduling switches. A multi-path flow regulation module combines the control hierarchy structure and liquid supply sequence to identify cooling pressure differences in each region. It constructs a zone flow gain value expression based on temperature rise intensity, thermal conductivity, and flow distribution, adjusts the flow path connection relationship and liquid supply scheduling participation status in stages, and switches the cooling path structure through actuator linkage, improving the response accuracy and structural adaptability of cooling resource allocation.

[0066] In this implementation plan, a linkage structure consisting of thermal parameter acquisition, zone control, heat flow assessment and flow regulation is constructed to achieve standardized processing of cooling data, response grading of cold plate zones, deviation identification of heat flow status and dynamic adjustment of flow path structure. This improves the multi-dimensional perception capability and parameter control accuracy of cooling scheduling, strengthens the correspondence between cooling channels and heat load distribution, and enhances the continuity, stability and regional adaptability of overall liquid cooling scheduling.

[0067] like Figure 4The diagram shown is a simplified structural diagram of a charging pile provided in this embodiment. The cold plate 1 is installed inside the charging cabinet and directly contacts the heating element 2, used for efficient heat dissipation from high-power electronic devices such as IGBT modules or high-frequency transformers. The heating element 2 is the main heat source area, continuously releasing heat during charging and is the key target of the cooling system. The gun barrel 3 adopts a flexible design with a double-layer coolant channel and an internal phase change material layer close to the conductor, used for thermal buffering and balanced heat conduction during high current transmission. The gun head 4 is the final contact part of the charging structure and the final heat exchange interface of the cooling circuit. Temperature rise is controlled through the internal coolant outlet and sealing structure, ensuring safe connection and comfortable grip. The overall structure covers a continuous cooling path from the core components to the cable end, adapting to the thermal management requirements of high-power charging scenarios.

[0068] like Figure 5 The diagram shows a double-layer structure for the gun barrel provided in this embodiment. The diagram illustrates the double-layered cooling structure at the end of the gun barrel. The structure employs an inner and outer coaxial cylindrical arrangement. The inner layer is close to the conductor path and serves to support the main coolant flow channel, directly absorbing the heat generated during conductor operation. The outer layer surrounds the inner layer, forming an auxiliary cooling channel and providing both insulation and support. A preset gap between the inner and outer layers creates a stable coolant circulation path. After passing through the conductor layer, the coolant flows into the outer channel, enhancing heat conduction and staged heat dissipation. This double-layered structure achieves efficient liquid cooling of the gun barrel conductor, suitable for temperature rise control and improved cable safety in high-current fast charging scenarios.

[0069] like Figure 6 The diagram shown is a cooling control flowchart provided in an embodiment of this application. The main pump, as the power source for coolant circulation, continuously supplies coolant to each cooling channel. Sensors collect temperature and flow data in real time. The control system analysis module judges the collected results and executes differentiated cooling control based on specific situations such as excessively high core component temperature, abnormal cable temperature, and abnormal flow changes. When the core component temperature is too high, the coolant, after being output by the main pump, directly enters the core component cold plate channel. When the cable temperature is abnormal, the coolant enters the cable cooling circuit through the auxiliary line and is enhanced by the cooling structure of the bending section. If an abnormal flow change is detected, the opening of the electronic control valve is increased to correct the flow ratio. After the main pump adjusts its power, the system continues to circulate, and the coolant returns to the storage tank through the return pipe and then enters the heat exchange device for temperature recovery. The entire process forms a closed-loop control structure with "sensing—judgment—diversion—adjustment—recovery" as the logical chain, corresponding to the dynamic regulation strategy under multi-channel cooling requirements.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A smart and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates, characterized in that, Includes the following steps: S1: Collect the temperature and flow status of each core heat source area, construct the partitioned thermal parameter dataset and perform preprocessing; S2: Construct cooling zones for different heat source structures, dynamically divide liquid supply priorities based on the heat flow response characteristics extracted from the partition thermal parameter dataset, switch liquid supply paths and adjust the connection structure of cooling zones according to the liquid supply priorities. S3: Based on the cooling zone connection structure and liquid supply priority, assess whether the heat flow distribution is balanced and clarify the control grade structure, rearrange the liquid supply rhythm according to the control grade structure and constrain the adjustment range. S4: By combining the control level structure and liquid supply sequence, identify the differences in cooling pressure in each area, and adjust the flow path connection relationship and liquid supply scheduling participation status in a graded manner.

2. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for collecting temperature and flow status data from each core heat source region, constructing a partitioned thermal parameter dataset, and performing preprocessing are as follows: The process of collecting temperature and flow data in each core heat source area and constructing a partitioned thermal parameter dataset includes: temperature sensors at the cold plate outlet and inlet record the temperature values ​​before and after heat exchange, forming the partitioned cold plate inlet temperature and outlet temperature; flow meters in each cold plate branch monitor the cumulative change in liquid volume per unit time, corresponding to the cold plate partition flow rate; temperature sensors are installed at the inlet and outlet of the main channel in the current area to sense the instantaneous temperature of the coolant flowing through the channel, recording the current area coolant inlet temperature and outlet temperature; miniature flow meters in the cooling branch of the current area read the volumetric velocity of the liquid passing through the cross-section in real time to determine the current area flow rate; miniature flow sensors deployed in adjacent cooling areas synchronously record the liquid volume change per unit time in the branch, forming the neighboring area flow rate. A time series structure of multi-channel temperature and flow fields is constructed for each cooling zone, and alignment processing is performed on all fields based on the sampling timestamp. Abnormal data segments caused by gas-liquid disturbances, pipeline stagnation, and instantaneous sensor failure are removed using the rate of change and the difference between adjacent sampling points as criteria. For areas with short-term missing data, a joint interpolation strategy of aligning the flow trend of adjacent channels and extrapolating the temperature slope is used for repair. Under the premise of ensuring structural continuity, an exponential weighting strategy within the sliding interval is applied to perform dynamic smoothing processing on all fields. Finally, the partitioned thermal parameter dataset is standardized and normalized.

3. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for constructing cooling zones oriented towards different heat source structures are as follows: The cooling area corresponding to the IGBT module is configured as a microchannel cold plate structure, with the cold plate structure directly attached to the chip's heating surface, forming a priority adjustment zone; the cooling area corresponding to the high-frequency transformer is configured as a semi-enclosed cold plate structure, with cooling channels arranged along the outer periphery of the housing, forming a medium stability zone; the cooling area corresponding to the main control circuit board is configured as a flat cold plate structure, covering the circuit board surface to form a uniform heat conduction interface, forming a basic stability zone. The conductor area of ​​the cable is configured with a double-layer phase change cooling structure, with the coolant flowing sequentially through the conductor layer and the outer surrounding layer, forming a flexible partitioned structure.

4. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for dynamically assigning liquid supply priority based on the heat flux response characteristics extracted from the partitioned thermal parameter dataset are as follows: Statistical analysis was performed on all installed cooling units with independent heat dissipation and thermal response characteristics to obtain the number of thermal response zones; the zone cold plate outlet temperature, zone cold plate inlet temperature, and cold plate zone flow rate were retrieved from the zone thermal parameter data set; the contact interface contour of the heat-generating device in the cold plate structure drawing was analyzed, and the effective contact length of the cold plate along the heat conduction direction was extracted. The difference between the outlet temperature and the inlet temperature of the cold plate in the zone represents the target zone temperature rise. Dividing the target zone temperature rise by the cold plate zone flow rate and then multiplying it by the effective contact length of the cold plate gives the thermal flux response expression of the cold plate zone. The heat flow response expressions of all zones are added together to obtain the total heat flow response expression. The total heat flow response expression is divided by the number of heat flow response zones to obtain the final cold plate heat flow response value. Based on the size of the cold plate heat flow response value of each zone, the liquid supply priority is dynamically divided.

5. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for switching the liquid supply path and adjusting the cooling zone connection structure based on the liquid supply priority are as follows: The liquid supply channel configuration strategy is implemented based on the cold plate heat flow response value: the cold plate heat flow response value is compared with the heat flow response threshold in real time; when the cold plate heat flow response value is greater than or equal to the heat flow response threshold, the cold plate partition is assigned to the priority area in the liquid supply scheduling sequence, the parallel branch of the cooling channel connected to the cold plate partition is activated, the cold plate partition is switched to the high-pressure outlet channel of the main pump, and the liquid supply reference flow of the main pump to the cold plate partition is increased. The liquid supply reference flow is the minimum initial output flow level provided by the main pump to the priority area in a complete liquid supply scheduling; when the cold plate heat flow response value is less than the heat flow response threshold, the cold plate partition is removed from the current liquid supply scheduling sequence, the cold plate partition is connected to the atmospheric pressure circulation branch, and switched to the basic liquid supply state, retaining only the minimum continuous flow of coolant.

6. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for evaluating the balance of heat flow distribution and clarifying the control hierarchy structure based on the cooling zone connection structure and liquid supply priority are as follows: Based on the cooling zone connection structure and liquid supply priority, a cooling load identification logic is constructed; the difference between the cold plate outlet temperature and the cold plate inlet temperature of the zone is calculated to obtain the temperature rise of the target zone; each cold plate zone configured in the cooling structure is numbered and identified according to the physical connection order; based on the number correspondence in the cold plate zone flow set, the flow field corresponding to the target zone number is extracted to obtain the flow of the target zone. Data segments showing continuous and stable trends in coolant temperature and flow rate during past equipment operation were screened and structured, then organized by partition number to form historical stable operation samples. The difference between the outlet temperature and inlet temperature of the cold plate in each partition was calculated, and the average of the difference sequence was used to obtain the reference state temperature rise. Flow sensor data at the inlet of each cooling partition was extracted from the historical stable operation samples by partition number and averaged to obtain the reference state flow rate. The total number of cooling zones installed in the current liquid cooling structure was counted to obtain the number of adaptation analysis partitions. The real-time temperature-flow ratio is obtained by dividing the target partition temperature rise rate by the target partition flow rate. The reference temperature-flow ratio is obtained by dividing the reference temperature rise by the reference flow rate. Subtracting the real-time temperature-flow ratio from the reference temperature-flow ratio yields the temperature rise deviation per unit flow rate. The temperature rise deviation per unit flow rate is squared to obtain the squared value of the temperature rise ratio deviation. The squared values ​​of the temperature rise ratio deviation of all cooling zones are summed sequentially to calculate the total squared deviation. The total squared deviation is divided by the number of adaptation analysis zones to calculate the average squared deviation. The square root of the average squared deviation is taken to obtain the cooling adaptation deviation value. The cooling adaptation deviation value is used to assess whether the heat flow distribution is balanced, and the magnitude of the cooling adaptation deviation value is used as the basis for judging the division of the control level structure.

7. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for rearranging the liquid supply rhythm and constraining the adjustment range based on the controlled hierarchical structure are as follows: The liquid supply control strategy is implemented according to the hierarchical control structure: the cooling adaptation deviation value and the adaptation deviation threshold are compared in real time. The adaptation deviation threshold includes a first-level deviation threshold and a second-level deviation threshold. When the cooling adaptation deviation value is greater than or equal to the first-level deviation threshold, the liquid supply priority order of all cooling zones is rearranged, and the target zone is connected to the high-pressure liquid supply branch of the main pump. The liquid supply cycle of the main pump is shortened. The liquid supply cycle of the main pump refers to the number of scheduling rounds that the main pump goes through to complete one closed loop process of coolant distribution and return to all target zones. The frequency of scheduling participation of the target zone is increased. When the cooling adaptation deviation value is greater than the secondary deviation threshold but less than the primary deviation threshold, the sorting position of the target partition in the current scheduling round is adjusted, the liquid supply duration of the target partition is extended, and the liquid supply ratio of non-target partitions is reduced; when the cooling adaptation deviation value is less than or equal to the secondary deviation threshold, the liquid supply scheduling configuration of all partitions is fixed, the basic flow output status of the main pump is maintained, and the flow adjustment operation in this round of scheduling is suspended.

8. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for identifying the cooling pressure differences in each region by combining the controlled hierarchical structure and the liquid supply sequence are as follows: Read the current region's coolant outlet temperature and current region's coolant inlet temperature and calculate the difference between them to obtain the temperature rise amplitude of the current region; obtain the current region's flow rate and the flow rate of adjacent regions; extract the heat flow direction thickness parameter from the cold plate structure drawing of the current cooling region to obtain the heat conduction path length; consult the thermal performance data table and material property database of the material used in the current cold plate to obtain the material's thermal conductivity; extract the outline of the bonding interface that coincides with the heat source entity in the cold plate structure drawing and calculate the projected area of ​​the bonding interface in the direction perpendicular to the heat flow to obtain the bonding contact area; Based on the controlled hierarchical structure and liquid supply sequence, the zone flow gain value is calculated as follows: the temperature rise amplitude of the current zone is divided by the current zone flow rate to represent the temperature rise intensity; the thermal conductivity of the material is multiplied by the contact area and then divided by the heat conduction path length to form the thermal conductivity expression; the temperature rise intensity is multiplied by the thermal conductivity expression and the square root is taken; the ratio of the current zone flow rate to the flow rate of the adjacent zone is added by one and the natural logarithm is taken; the square root result is multiplied by the logarithm to obtain the zone flow gain value.

9. The intelligent and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates according to claim 1, characterized in that: The specific steps for adjusting the flow path connection relationship and the liquid supply scheduling participation status in the graded adjustment are as follows: The flow path control strategy is implemented in stages based on the zone flow gain value: the zone flow gain value is compared with the flow gain threshold in real time, the flow gain threshold includes a primary gain threshold and a secondary gain threshold; when the zone flow gain value is greater than or equal to the primary gain threshold, the current zone is switched to a main pump direct supply structure, the parallel relationship with other zones is terminated, an independent cooling loop is enabled, and the flow connection with adjacent zones is disconnected; when the zone flow gain value is greater than the secondary gain threshold but less than the primary gain threshold, the current zone is included in the next round of scheduling candidate sequence, the flow path structure remains unchanged, and participation in subsequent scheduling is allowed; when the zone flow gain value is less than or equal to the secondary gain threshold, the flow path structure is fixed and liquid supply regulation is stopped.

10. A smart and efficient liquid-cooled scheduling system for charging piles based on partitioned cold plates, comprising applying the smart and efficient liquid-cooled scheduling method for charging piles based on partitioned cold plates as described in any one of claims 1-9, including: The thermal parameter data acquisition module, the cold plate area control module, the temperature and flow joint analysis module, and the multi-channel flow regulation module are characterized by: The thermal parameter data acquisition module is used to collect the temperature and flow status of each core heat source area, construct a partitioned thermal parameter dataset, and perform preprocessing. The cold plate area control module is used to construct cooling zones for different heat source structures, dynamically divide the liquid supply priority based on the heat flow response characteristics extracted from the partition thermal parameter dataset, switch the liquid supply path and adjust the cooling zone connection structure according to the liquid supply priority. The temperature and flow joint analysis module is used to assess whether the heat flow distribution is balanced and to clarify the control grade structure based on the cooling zone connection structure and liquid supply priority. It also rearranges the liquid supply rhythm and constrains the adjustment range according to the control grade structure. The multi-flow regulation module is used to combine the control tiered structure and liquid supply sequence to identify the cooling pressure differences in each region and adjust the flow path connection relationship and liquid supply scheduling participation status in a tiered manner.

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