Liquid cooling data control method and system applying waste heat recovery to battery thermal management

Abstract

The application relates to the technical field of battery thermal management, and particularly provides a liquid cooling data control method and system for applying waste heat recovery to battery thermal management. The method comprises the following steps: a data processor performs thermal state evaluation based on a preset battery working temperature range; a control decision signal is formed according to the result of the thermal state evaluation, and is transmitted to a central controller to trigger subsequent actions; after the central controller receives the control decision signal, a double three-way stopcock valve is used to realize fluid path reconstruction; the directional migration of cooling liquid among a data center, a waste heat power generation device and a battery pack is realized, and the dynamic configuration of a heat energy transmission path is completed; the reconstructed heat energy transmission path activates an energy conversion mechanism, and forms an energy conversion chain of waste heat, electric energy, refrigeration or waste heat, direct heat and temperature control. The system comprises a CDU control unit, a central controller, a battery pack and a data processor. The application combines a data center waste heat recovery device with battery thermal management to construct a novel liquid cooling data center system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery thermal management, in particular to a liquid cooling data control method and system for applying waste heat recovery to battery thermal management. BACKGROUND

[0002] In recent years, with the explosive demand growth of information technology, it has driven the development of related new technologies such as artificial intelligence and big data. As the infrastructure of information technology, the scale of data centers is also growing larger and larger. Taking a data center with PUE=2 as an example, the specific energy consumption composition is: information technology (IT) equipment energy consumption 50%, cooling system energy consumption 37%, power supply and distribution system energy consumption 10%, and lighting and other auxiliary equipment energy consumption 3%. A large amount of heat generated during the operation of the IT equipment is discharged to the outdoor through the cooling system. If this part of heat can be recovered and utilized, not only can the cooling system load of the data center be reduced, but also the operation energy consumption can be reduced, and a large economic value can be generated, increasing the revenue of the data center. At present, the waste heat recovery of the data center is mainly applied to the heating of communities, companies and other public facilities, and secondly, the waste heat is stored by using a heat storage power station. From this point of view, the application scene of the data center waste heat recovery technology is fixed at present, and the angle and method of using the waste heat are too single, which greatly affects the utilization rate. At the same time, the battery will be affected by internal and external factors and will be aged if it is placed for a long time, and battery thermal management is needed to maintain the performance of the battery.

[0003] Prior art one, Chinese patent, application number 202411132939.3 discloses a light, storage, charging, and vehicle thermal management system. The thermal management system includes multiple channels, a valve body assembly, and a heat dissipation device. The multiple channels are in communication with the valve body assembly. Among them, the multiple channels include one or more of the liquid cooling channels of the charging host, the liquid cooling channels of the charging gun, and the liquid cooling channels of the vehicle-mounted battery. In addition, the multiple channels also include the liquid cooling channels of the energy storage equipment and the liquid cooling channels where the heat dissipation device is located. The heat dissipation device is used to cool the cooling liquid flowing in the liquid cooling channel where the heat dissipation device is located by using a compressor or natural cooling. The valve body assembly is used to control one or more of the multiple channels to be in communication with the liquid cooling channel where the heat dissipation device is located. Although the thermal management of at least two application scenes is integrated to meet the thermal management requirements of each scene integrated in the thermal management system, the resource utilization rate can be effectively improved, and the operation energy efficiency of the thermal management system can be improved. However, only the physical integration of multi-scene thermal management is realized, but the dynamic energy conversion mechanism is lacking, and the waste heat resources are not fully utilized. The traditional valve control cooling liquid distribution method cannot adjust the fluid path in real time according to the temperature field change of the battery pack, which limits the thermal management efficiency. The heat dissipation relies on an external compressor or natural cooling, and the energy consumption is high, and a closed-loop energy recovery system is not formed.

[0004] The prior art two, Chinese patent, application number 202411330995.8 discloses a method, device and equipment for controlling the refrigerant flow of a liquid cooling cabinet, which comprises the following steps: obtaining multi-dimensional data from a data center; simulating the thermal management situation in the data center to obtain a thermal management model; predicting the future thermal load of the data center based on the multi-dimensional data according to the thermal management model or a constructed prediction model; the constructed prediction model is obtained by training a training set, and the training set is obtained according to historical multi-dimensional data; determining a control strategy according to the prediction result; determining a control instruction according to the control strategy; and sending the control instruction to an executing mechanism to adjust the refrigerant flow of the liquid cooling cabinet according to the control instruction. Although the above-mentioned method solves the problem that the refrigerant flow of the liquid cooling cabinet cannot be accurately controlled to adapt to the dynamic thermal load change of the data center in the prior art, and realizes intelligent control of the refrigerant flow, it focuses on the prediction of the thermal load of the data center and the control of the flow, and does not involve the collaborative optimization of battery thermal management and waste heat recovery; the cooling strategy is only for refrigeration demand, and does not have the function of bidirectional energy utilization such as waste heat power generation or preheating of the battery pack; and it lacks cross-system thermal energy migration capability, and cannot realize thermal energy interaction between the data center and the battery pack.

[0005] The prior art three, Chinese patent, application number 202411860822.7 discloses a flexible liquid cooling control method and system for data center distribution, which comprises the following steps: real-time acquisition of total power consumption and total heat generation of the data center; control of the input power of the data center and the total refrigerating capacity of the liquid cooling system based on the total power consumption and the total heat generation, and calculation of the optimal refrigerating capacity of each liquid cooling unit under the highest cooling efficiency; and control of the refrigerating capacity output of each liquid cooling unit according to the optimal refrigerating capacity. Although the above-mentioned method realizes real-time adjustment of the input power of the data center and the refrigerating capacity of the liquid cooling system according to the total power consumption and the total heat generation of the data center, further adjusts the refrigerating capacity of each liquid cooling unit, improves the utilization efficiency of liquid cooling resources and the cooling efficiency, optimizes the overall thermal management efficiency of the data center, effectively reduces the temperature of the data center, and improves the stability and reliability of the data center, the optimization target is the refrigerating capacity distribution of the liquid cooling unit, and the problem of uneven internal temperature of the battery pack is not solved; the control strategy is based on macro thermal load calculation, and cannot accurately adjust the temperature of the single battery; and the energy conversion technology such as waste heat power generation is not integrated, and the system energy efficiency is limited.

[0006] The prior art one, the prior art two and the prior art three have the problems of low energy utilization efficiency, insufficient thermal management response speed and accuracy, weak temperature field uniformity regulation capability and lack of cross-system thermal energy interaction. Therefore, the present application provides a liquid cooling data control method and system applying waste heat recovery to battery thermal management. SUMMARY

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] In one aspect of the present application, a liquid cooling data control method applying waste heat recovery to battery thermal management is provided, comprising the following steps:

[0009] After the central controller receives the control decision signal of the pre-cooling mode instruction or the pre-heating mode instruction, the fluid path is reconfigured through the double three-way stopcock valve; the directional migration of the cooling liquid among the data center, the waste heat power generation device and the battery pack is realized, and the dynamic configuration of the heat energy transmission path is completed;

[0010] The reconfigured heat energy transmission path activates the energy conversion mechanism, forming the energy conversion chain of waste heat, electric energy, refrigeration or waste heat, direct heating and temperature control.

[0011] In an alternative embodiment, the process of completing the dynamic configuration of the heat energy transmission path comprises the following steps:

[0012] The pre-cooling / pre-heating instruction received by the central controller is converted into hydraulic topology coding, the pre-cooling mode generates a vertical flow direction activation code, and the pre-heating mode generates a horizontal flow direction activation code; the vertical flow direction activation code and the horizontal flow direction activation code include the cooperative action time sequence and the opening and closing angle parameters of the double valve;

[0013] The hydraulic topology coding drives the double three-way stopcock valve to perform three-dimensional flow channel switching, and the rotation angle of the valve core forms a linear mapping relationship with the coding instruction;

[0014] The reconfigured flow channel triggers the change of the cooling liquid dynamics, the plate exchange passage causes the high-temperature cooling liquid to form turbulent shear in the plate heat exchanger, maximizes the contact with the heating surface of the waste heat generator set, the direct heating circuit drives the overheated fluid to flow along the surface of the battery module in a serpentine manner, and the directional migration of heat energy from the heat source to the sink is completed through the flow velocity gradient to realize heat stratified exchange.

[0015] In an alternative embodiment, the process of forming a linear mapping relationship between the rotation angle of the valve core and the coding instruction comprises the following steps:

[0016] The vertical flow direction activation code or the horizontal flow direction activation code is input into the angle-time sequence resolver, the main valve rotation reference angle in the code is extracted, the cooperative delay time of the slave valve is analyzed, and the opening and closing gradual rate parameters are separated to generate a mechanical action sequence of the double valves which are independent but time-coupled;

[0017] The mechanical action sequence drives the stopcock valve actuator, the main valve core rotates: the reference angle is the target position, and rotates at a uniform speed according to the gradual rate; the slave valve core follows: starts to rotate after a specified delay time, and maintains the same angular velocity; the flow channel cross section is reconfigured: the valve core at a specific angle corresponds to a specific flow channel cross section ratio, forming a linear relationship between the rotation angle and the flow area;

[0018] The double valve completes the space topology construction when reaching the target angle, the pre-cooling mode is 90° position, the first three-way plug valve vertical uplink channel section ratio reaches 95%, the second three-way plug valve vertical downlink channel section ratio reaches 95%, and the horizontal flow channel section is contracted to below 5%; the preheating mode is 75° position: the first three-way plug valve horizontal left channel section ratio reaches 85%, the second three-way plug valve horizontal right channel section ratio reaches 85%, and the vertical flow channel section is contracted to 15%, so that the physical reconstruction of the cooling liquid passage is realized.

[0019] In an optional embodiment, the process of forming a linear relationship between the rotation angle and the flow area includes the following steps:

[0020] The plug valve actuator receives the rotation angle instruction of the mechanical action sequence, activates the three-dimensional curved surface profile in the valve core: when the vertical flow direction is activated, the axial spiral rising conical groove is awakened; when the horizontal flow direction is activated, the radial fan-shaped flow channel is started, and the profile geometric parameters are topologically associated with the target rotation angle; the flow direction identifier receiving the vertical flow direction activation code or the horizontal flow direction activation code and the target rotation angle value, the flow direction identifier is parsed as a profile type selection signal, and the target angle value is converted into a total amount of deformation requirement; according to the flow direction identifier, the basic geometric template of the corresponding profile is activated, and when the vertical flow direction is activated: the initial depth and the spiral angle of the conical groove are loaded, and when the horizontal flow direction is activated: the reference width and the radiation interval of the fan-shaped flow channel are called; the unit angle deformation rate is calculated in combination with the target rotation angle; during the rotation of the valve core, the three-dimensional spiral curved surface with the depth linearly increasing with the angle and the radial flow channel with the width linearly expanding with the angle are continuously formed, and the preset profile geometric shape is accurately achieved at the target angle position; the valve core uniform rotation triggers the physical deformation: the conical groove responds, and the vertical flow channel depth increases by 0.02 millimeters every 1° rotation; the fan-shaped flow channel responds, and the horizontal flow channel width expands by 0.15 millimeters every 1° rotation; through the strict proportion of the profile deformation rate and the rotation angle, the linear conversion of the angle and the displacement is realized;

[0021] The physical deformation is directly mapped to the flow cross section.

[0022] In an optional embodiment, the process of forming a three-dimensional spiral curved surface with the depth linearly increasing with the angle and generating a radial flow channel with the width linearly expanding with the angle includes the following steps:

[0023] The valve core receives the unit angle deformation rate parameter and the real-time rotation angle feedback information; the depth change rate parameter is obtained for the conical groove scene, and the width change rate parameter is extracted for the fan-shaped flow channel scene, and the measurement value of the current rotation angle is read synchronously;

[0024] The deformation superposition operation is triggered once per unit rotation angle; in the conical groove scenario, the unit depth change amount is accumulated on the current depth reference; in the fan-shaped flow channel scenario, the unit width change amount is expanded on the current width to form a linear relationship between the rotation angle and the deformation amount;

[0025] The cumulative deformation amount drives the physical structure to evolve continuously, the conical groove generates a constant-pitch helical surface through depth accumulation, and the fan-shaped flow channel forms a radial flow channel network through width expansion; at the target rotation angle position, the preset geometric shape is achieved.

[0026] In an optional implementation, the process of generating a constant-pitch helical surface and forming a radial flow channel network includes the following steps:

[0027] The conical groove receives a depth increment instruction triggered by a unit rotation angle, and establishes an axial coordinate reference system based on the initial depth;

[0028] When each unit rotation angle is increased, a fixed angle displacement is pushed in the circumferential direction, and a depth increment is accumulated synchronously in the axial direction to form a constant-angle pitch space trajectory;

[0029] Radial equidistant offset is performed based on the trajectory line, the axial shrinkage rate of the cross section is maintained, and a constant-pitch variable-diameter helical surface is generated;

[0030] The fan-shaped flow channel obtains a width increment parameter triggered by a unit angle, and establishes a polar coordinate grid with the valve core center as the origin; when each unit rotation angle is increased: a new shunt branch is divided in the circumferential direction, each branch is expanded in width according to the angle ratio, and a radial branch network is formed;

[0031] A gradually deepening groove is etched in the radial direction, and is distributed at an equal angle interval in the circumferential direction to construct a tree-shaped radial flow channel network.

[0032] In an optional implementation, the process of forming a constant-angle pitch space trajectory includes the following steps:

[0033] The rotation displacement equivalent binding receives a unit rotation angle instruction and an axial depth increment parameter, sets the unit angle value as the circumferential displacement reference amount, converts the depth increment parameter into an axial displacement equivalent, and establishes a mathematical binding relationship between the angle and the displacement;

[0034] When each unit angle increment is detected, the circumferential motion module: performs a fixed angle displacement promotion, and the axial motion module: synchronously activates the depth accumulation mechanism to generate a displacement coupling event;

[0035] The coupling event drives the coordinate system, accumulates the circumferential displacement amount in the circumferential direction and the axial displacement amount in the axial direction with the initial position as the origin, and continuously generates a constant-pitch space coordinate point sequence.

[0036] In an alternative embodiment, the temperature sensor collects battery monomer temperature and ambient temperature data in real time, and transmits them to the data processor for multidimensional analysis; the data processor performs thermal state evaluation based on the preset battery operating temperature range; the result of the thermal state evaluation forms a control decision signal, which is transmitted to the central controller to trigger subsequent actions;

[0037] When it is detected that any battery monomer temperature is not less than the upper limit of the preset battery operating temperature range, a pre-cooling mode instruction is generated; when it is detected that the average temperature of the battery pack is not greater than the lower limit of the preset battery operating temperature range, a pre-heating mode instruction is generated.

[0038] In an alternative embodiment, the pre-cooling mode in the dynamic configuration of the thermal energy transmission path is completed: the horizontal flow valves of the first and second three-way stopcock valves are closed, and the vertical flow valve is opened, so that the waste heat of the data center flows through the plate heat exchanger; the pre-heating mode: the double-valve vertical flow valve is closed, and the horizontal flow valve is opened, so that the overheated cooling liquid directly passes through the battery heat exchange module;

[0039] In the energy conversion mechanism activated by the reconstructed thermal energy transmission path, the pre-cooling mode: the plate heat exchanger transmits waste heat to the waste heat generator set working medium, and the generator set generates electric energy to drive the air cooling equipment to implement forced cooling of the battery pack; the pre-heating mode: the high-temperature cooling liquid directly flows through the battery heat exchange module to release heat, and the central controller adjusts the opening and closing ratio of the valve to realize hierarchical heating of different battery modules through turbulent cooling.

[0040] In another aspect of the application, a liquid-cooled data control system for applying waste heat recovery to battery thermal management is provided, and a liquid-cooled data control method for applying waste heat recovery to battery thermal management is implemented, which comprises: a liquid-cooled cabinet, a CDU control unit, a dry condenser, a plate heat exchanger, a waste heat generator set, a condenser, a central controller, a battery pack, a temperature sensor, a first three-way stopcock valve, a second three-way stopcock valve, and a data processor.

[0041] The outlet end of the right side of the liquid-cooled cabinet is communicated with the inlet end of the CDU control unit through a pipeline, and the inlet end of the left side of the liquid-cooled cabinet is communicated with the outlet end of the CDU control unit through a pipeline; the outlet end of the dry condenser is connected with the CDU control unit through a pipeline and a temperature sensor; the inlet end of the dry condenser is communicated with the first three-way stopcock valve through a pipeline and a temperature sensor, and the CDU control unit is connected with the second three-way stopcock valve through a pipeline and a temperature sensor.

[0042] The first three-way stopcock valve and the second three-way stopcock valve are connected with the plate heat exchanger through pipelines, the plate heat exchanger is communicated with the waste heat power generator set and the condenser through pipelines; the central controller is connected with the waste heat power generator set, the first three-way stopcock valve, the second three-way stopcock valve and the data processor; the preheating module is connected with the CDU control unit, the dry condenser and the battery pack through pipelines, the battery pack is provided with a precooling module and a plurality of batteries, and the batteries are connected with the data processor through temperature sensors.

[0043] The application combines the data center waste heat recovery device with the battery thermal management to construct a new liquid-cooled data center system. According to the sensor monitoring of the battery temperature change, the central controller controls the waste heat to preheat or low-temperature waste heat (organic Rankine cycle) power generation to drive the air-cooled device to precool the battery; the waste heat recovery system solves the problem of thermal management energy consumption from the two directions of battery precooling and preheating by using the large amount of waste heat generated by the liquid-cooled data center, and improves the utilization efficiency of the data center waste heat; and the comprehensive energy consumption of the data center and the battery thermal management is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0044] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application, and are used to explain the application together with the embodiments of the application, and do not constitute a limitation on the application. In the drawings:

[0045] Figure 1 A liquid-cooled data control method flow chart for applying waste heat recovery to battery thermal management provided in embodiment 1 of the application;

[0046] Figure 2 A liquid-cooled data control method principle diagram for applying waste heat recovery to battery thermal management provided in embodiment 2 of the application;

[0047] Figure 3 A process diagram for forming a control decision signal based on the results of thermal state evaluation provided in embodiment 3 of the application;

[0048] Figure 4 A process diagram for completing the dynamic configuration of the heat energy transmission path provided in embodiment 4 of the application;

[0049] Figure 5 A liquid-cooled data control system block diagram for applying waste heat recovery to battery thermal management provided in embodiment 10 of the application;

[0050] Figure 6 A liquid-cooled data control system principle diagram for applying waste heat recovery to battery thermal management provided in embodiment 10 of the application;

[0051] Figure 7 A block diagram of an electronic device provided by the application;

[0052] Figure 8 The computer readable storage medium provided by the present application is shown in the figure.

[0053] Fig. 1 is a liquid cooling cabinet; 2, CDU control unit; 3, dry condenser; 4, plate heat exchanger; 5, waste heat power generation unit; 6, condenser; 7, central controller; 9, battery pack; 9, temperature sensor; 10, first three-way stopcock valve; 11, second three-way stopcock valve; 12, data processor; 13, central processing unit / microprocessor / master control chip; 14, storage medium; 15, data bus; 16, input / output bus / external bus / device bus; 17, display; 18, input / output device; 19, computer readable instructions; 20, non-transitory computer readable storage medium. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all.

[0055] Hereinafter, the terms "first", "second", etc. are only used for convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0056] In the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed mechanical connection, or detachable mechanical connection, or integral; or "connection" can be direct connection, or indirect connection through intermediate medium. In addition, unless otherwise explicitly specified and limited, the term "coupling" should be understood broadly, for example, "coupling" can be direct electrical connection, for example, physical contact and electrical conduction between two components, or can be understood as electrical connection between different components through printed circuit board (PCB) copper foil or wire in line structure, which can transmit electrical signals to transmit electrical signals; or "coupling" can be indirect electrical connection between two components through intermediate medium; or "coupling" can be electrical connection between two components through space / non-contact, for example, capacitive coupling between two components to transmit electrical signals.

[0057] In the embodiments of the present application, the orientation terms such as "upper", "lower", "left", "right" and the like can include but are not limited to the orientation defined by the relative placement of the components in the drawings. It should be understood that these directional terms can be relative concepts, and they are used for relative description and clarification, which can change accordingly according to the change of the placement of the components in the drawings.

[0058] Embodiment 1: As shown in the figure, the embodiment of the present application provides a liquid cooling data control method for applying waste heat recovery to battery thermal management, comprising the following steps: Figure 1

[0059] Step S100: The temperature sensor collects battery monomer temperature and environmental temperature data in real time, and transmits them to the data processor for multi-dimensional analysis; the data processor performs thermal state evaluation based on the preset battery working temperature range; the result of the thermal state evaluation forms a control decision signal, which is transmitted to the central controller to trigger subsequent actions;

[0060] When it is detected that any battery monomer temperature is not less than the upper limit of the preset battery working temperature range, a pre-cooling mode instruction is generated; when it is detected that the average temperature of the battery pack is not greater than the lower limit of the preset battery working temperature range, a pre-heating mode instruction is generated;

[0061] Step S200: After the central controller receives the control decision signal, the fluid path is reconfigured through the double three-way stopcock valve; the directional migration of the cooling liquid among the data center, the waste heat power generation device and the battery pack is realized, and the dynamic configuration of the heat energy transmission path is completed;

[0062] Pre-cooling mode: close the horizontal flow valve of the first three-way stopcock valve and the second three-way stopcock valve, and open the vertical flow valve, so that the data center waste heat flows through the plate heat exchanger; pre-heating mode: close the vertical flow valve of the double valve, and open the horizontal flow valve, so that the overheated cooling liquid directly passes through the battery heat exchange module;

[0063] Step S300: The reconfigured heat energy transmission path activates the energy conversion mechanism, forming the energy conversion chain of waste heat, electric energy, refrigeration or waste heat, direct heating and temperature control;

[0064] Pre-cooling mode: the plate heat exchanger transmits waste heat to the working medium of the waste heat power generator set, the generator set outputs electric energy to drive the air cooling equipment, and the battery pack is subjected to forced cooling; pre-heating mode: the high-temperature cooling liquid directly flows through the battery heat exchange module to release heat, and at the same time the central controller adjusts the opening and closing ratio of the valve, so as to realize the staged heating of different battery modules through turbulent cooling.

[0065] In the above embodiments, the specific principles are referred to the accompanying drawings Figure 2 ​This embodiment achieves system-level integration of battery thermal management and waste heat recovery through multi-step collaboration; a three-dimensional temperature field mapping model of the battery pack is established based on a distributed temperature sensor network and real-time data processing; the fluid path switching function of the dual three-way valves enables millisecond-level reconstruction of the coolant flow direction, forming a variable topology liquid cooling network that adapts to the battery thermal state; it breaks through the fixed path limitations of traditional thermal management systems, ensuring that the cooling medium always flows along the optimal heat conduction path. In the pre-cooling mode, a waste heat-power generation-cooling energy chain is constructed, with the plate heat exchanger serving as a cross-system thermal coupling node, converting battery waste heat into a power source for increasing the enthalpy of the generator set's working medium; integration transforms the entropy increase generated during the thermal management process into useful work output, achieving tiered utilization of energy quality. The preheating / precooling dual modes share the same hydraulic circuit but achieve functional decoupling: the preheating mode establishes a short-circuit thermal path through a horizontal flow channel, utilizing system waste heat for rapid temperature rise; the precooling mode activates multi-stage heat exchange through a vertical flow channel, combined with forced convection driven by power generation to enhance heat dissipation, eliminating structural redundancy in traditional system heating / cooling devices and improving equipment integration. Based on turbulent cooling technology with valve opening / closing ratio regulation, at the battery module level, it achieves: control of non-uniform heat flux distribution, targeted elimination of local hot spots, and equalization of the temperature field, effectively solving the problem of uneven temperature caused by differences in internal resistance within the battery pack. The central controller, as the system-level decision-making unit, establishes a closed-loop control link for temperature signals and valve position commands, a feedforward compensation channel for heat load and power generation, and a predictive adjustment mechanism for environmental parameters and operating modes, forming a collaborative control framework spanning thermal, fluid, and electrical domains.

[0066] In summary, this embodiment constructs a novel battery thermal control system that combines precise thermal management with high energy efficiency by organically integrating the above features. Its core value lies in achieving simultaneous optimization of thermal management energy consumption and battery system energy efficiency.

[0067] This embodiment combines a data center waste heat recovery device with battery thermal management to construct a novel liquid-cooled data center system. Based on sensor monitoring of battery temperature changes, the waste heat, under the control of a central controller, is used for preheating via heat exchange or to generate electricity from low-temperature waste heat (organic Rankine cycle) to drive an air-cooling device for precooling the batteries. The waste heat recovery system utilizes the large amount of waste heat generated by the liquid-cooled data center to address the energy consumption challenges of thermal management from both battery precooling and preheating perspectives, thereby improving the utilization efficiency of data center waste heat and reducing the overall energy consumption of the data center and battery thermal management.

[0068] Example 2: Figure 3 As shown, based on Example 1, the process of forming a control decision signal from the thermal state assessment results in step S100 of this embodiment of the invention includes the following steps:

[0069] Step S101: The raw data collected by the temperature sensor is reorganized in space-time dimensions, the single-body temperature is mapped to a thermal distribution matrix according to the physical position of the battery pack, the environmental temperature data is converted into a boundary influence factor, a dynamic change gradient is generated from a historical temperature rise curve, and a temperature field model containing spatial distribution, boundary conditions and time-varying trends is formed;

[0070] Step S102: The temperature field model is input into a multi-parameter evaluator, the highest temperature point in the thermal distribution matrix and the low-temperature aggregation area are extracted, the environmental coupling coefficient is calculated by weighting the boundary influence factor, the temperature rise acceleration is derived from the dynamic change gradient, and the comprehensive thermal state index is output through a nonlinear fusion algorithm;

[0071] Step S103: The comprehensive thermal state index is compared with a preset threshold, when the index breaks through the critical threshold, a pre-cooling mode instruction is generated, and when the index is lower than a safety baseline, a pre-heating mode instruction is generated; meanwhile, the response level of the instruction is dynamically adjusted according to the temperature rise acceleration value.

[0072] In the above embodiment, the space-time dimension reorganization is realized, the traditional point temperature monitoring is upgraded to three-dimensional temperature field modeling, and the inhomogeneity of the battery pack thermal distribution is accurately captured; the boundary coupling is dynamically weighted, and the environmental temperature is no longer an independent parameter, but is converted into a physical coefficient affecting the boundary heat exchange efficiency of the battery; the response level is self-adaptive, and the temperature rise acceleration value determines the execution strength of the instruction, such as 0.3℃ / min triggering standard pre-cooling and 0.5℃ / min activating emergency cooling; through the three technical breakthroughs of temperature field modeling, multi-parameter fusion and response grading, the discrete temperature data is converted into a control decision with physical meaning, providing an adaptive decision engine for battery thermal management.

[0073] Embodiment 3: Based on embodiment 2, the process of outputting a comprehensive thermal state index by a nonlinear fusion algorithm in step S102 provided by the present embodiment comprises the following steps:

[0074] Step S1021: Extract the core parameters in the temperature field model, convert the highest temperature point value into a thermal runaway risk coefficient, generate an energy efficiency loss index from the area proportion of the low-temperature aggregation area, and map the environmental coupling coefficient as a boundary correction factor and the temperature rise acceleration value as an emergency response weight;

[0075] Step S1022: Perform heterogeneous conversion on the four types of parameters, logarithmically compress the thermal runaway risk coefficient, amplify the energy efficiency loss index by the third power, normalize the boundary correction factor using hyperbolic tangent, and exponentially expand the emergency response weight to generate a standardized feature vector;

[0076] Step S1023: Input the transformed standardized feature vector into an energy conservation model, superimpose the heat dissipation demand item and the heat supplement demand item, and output the comprehensive thermal state index through S-shaped curve saturation processing;

[0077] The heat runaway risk coefficient x the emergency response weight forms a heat dissipation demand item; and the energy efficiency loss index x the boundary correction factor constitutes a heat supplement demand item.

[0078] In the above embodiment, the embodiment realizes heterogeneous parameter homogenization conversion, logarithmic compression suppresses high-risk coefficient expansion, cubic amplification highlights the influence of low energy efficiency area, and makes different dimension parameters have fusibility; energy conservation drives fusion, and the physical balance model of heat dissipation demand and heat supplement demand makes the index value directly correspond to the energy equivalent that needs to be exchanged by the heat management system; the S-shaped curve saturation constraint limits the fusion result in the [0, 1] interval, avoids numerical overflow in extreme working conditions, and 0.5 is the temperature balance critical point; the fusion process converts discrete heat characteristics into control indexes with clear physical meaning through three core technologies of heterogeneous conversion, energy balance and saturation constraint, and provides quantitative decision basis for battery heat management.

[0079] Embodiment 4: as shown in the embodiment 1, on the basis of the embodiment 1, the process of completing the dynamic configuration of the heat energy transmission path in the step S200 provided by the embodiment of the application comprises the following steps: Figure 4

[0080] Step S201: the precooling / preheating instruction received by the central controller is converted into a hydraulic topology code, the precooling mode generates a vertical flow direction activation code, the preheating mode generates a horizontal flow direction activation code, the vertical flow direction activation code and the horizontal flow direction activation code contain the cooperative action time sequence and the opening and closing angle parameters of the double valves;

[0081] Step S202: the hydraulic topology code drives the double three-way plug valves to execute three-dimensional flow channel switching, and the rotation angle of the valve core and the code instruction form a linear mapping relationship;

[0082] The precooling mode: the first three-way plug valve closes the horizontal flow channel and opens the vertical upward channel, the second three-way plug valve closes the horizontal flow channel and opens the vertical downward channel, and the plate heat exchanger passage is formed; the preheating mode: the first three-way plug valve closes the vertical flow channel and opens the horizontal left channel, and the second three-way plug valve closes the vertical flow channel and opens the horizontal right channel, and the direct heating loop is constructed;

[0083] Step S203: the reconstructed flow channel triggers the change of the cooling liquid dynamics, the plate heat exchanger passage makes the high-temperature cooling liquid form turbulent shear in the plate heat exchanger, maximizes the heated surface of the waste heat power generator set, the direct heating loop drives the overheat fluid to flow in a serpentine manner along the surface of the battery module, and the heat stratification exchange is realized through the flow velocity gradient, so that the directional migration of heat energy from the heat source (data center / battery pack) to the sink (power generator set / battery module) is completed.

[0084] ​In the above embodiment, the hydraulic topology coding mechanism is realized, the control instruction is no longer directly driving the valve, but is compiled into machine code containing space-time coordination parameters, ensuring the millisecond-level synchronization of double valve action; three-dimensional flow channel dynamic weaving, six ports of two three-way valves form a reconfigurable flow channel network, three basic flow channel topologies are formed by port opening and closing combination; the fluid dynamics effect of thermal migration, the turbulent shear in the plate exchange passage enhances the heat exchange efficiency, and the flow velocity gradient in the direct heating circuit realizes the partitioned thermal management of the battery module; through the triple technical breakthroughs of coding and compiling, flow channel reconstruction, and heat flow coupling, the cooling system has hydraulic topology adaptive ability, and the thermal migration efficiency is improved compared with the traditional valve control.

[0085] In the above embodiment, the hydraulic topology coding mechanism is realized, the control instruction is no longer directly driving the valve, but is compiled into machine code containing space-time coordination parameters, ensuring the millisecond-level synchronization of double valve action; three-dimensional flow channel dynamic weaving, six ports of two three-way valves form a reconfigurable flow channel network, three basic flow channel topologies are formed by port opening and closing combination; the fluid dynamics effect of thermal migration, the turbulent shear in the plate exchange passage enhances the heat exchange efficiency, and the flow velocity gradient in the direct heating circuit realizes the partitioned thermal management of the battery module; through the triple technical breakthroughs of coding and compiling, flow channel reconstruction, and heat flow coupling, the cooling system has hydraulic topology adaptive ability, and the thermal migration efficiency is improved compared with the traditional valve control.

[0086] Step S2021: the vertical flow direction activation code or the horizontal flow direction activation code is input into the angle-time decomposer, the main valve rotation reference angle in the code is extracted, the slave valve coordination delay time is analyzed, the combined gradual rate parameters are separated, and the mechanical action sequence of the double valves is generated independently but time-coupled;

[0087] Step S2022: the mechanical action sequence drives the plug valve actuator, the main valve core rotates: the reference angle is the target position, and the rotation is uniform at the gradual rate; the slave valve core follows: the rotation is started after a specified delay time, and the same angular velocity is maintained; the flow channel cross section is reconstructed: the valve core specific angle corresponds to the specific flow channel cross section ratio, forming a linear relationship between the rotation angle and the flow area;

[0088] Step S2023: the double valves reach the target angle to complete the space topology construction, the pre-cooling mode 90° position, the first three-way plug valve vertical uplink channel cross section ratio reaches 95%, the second three-way plug valve vertical downlink channel cross section ratio reaches 95%, and the horizontal flow channel cross section is contracted to below 5%; the preheating mode 75° position: the first three-way plug valve horizontal left channel cross section ratio reaches 85%, the second three-way plug valve horizontal right channel cross section ratio reaches 85%, and the vertical flow channel cross section is contracted to 15%, realizing the physical reconstruction of the cooling liquid passage.

[0089] In the above embodiment, the embodiment realizes the space-time separation interpretation mechanism, decomposes the composite coding into three independent physical quantities of rotation angle, delay time and angular velocity, avoids the coupling interference of traditional control; the strict linear section mapping makes the target flow passage section expand by 1.2% and the non-target flow passage synchronously shrink by 1.2% when the valve core rotates by 1°, and keeps the flow conservation; the phase difference following control eliminates the hydraulic impact from the valve delay start, and the 3ms time difference ensures that the two valves reach the target angle at the same time; through the three core technologies of command decoupling, linear mapping and phase coordination, the abstract hydraulic coding is converted into accurate physical flow passage structure, and the determinacy path guarantee is provided for the directional migration of heat energy.

[0090] In the embodiment 6, on the basis of the embodiment 5, the process of forming the linear relationship between the rotation angle and the flow area in the step S2022 comprises the following steps.

[0091] Step S20221: the cock valve actuator receives the rotation angle instruction of the mechanical action sequence, activates the three-dimensional curved surface profile in the valve core: when the vertical flow direction is activated, the axial spiral rising conical groove is activated; when the horizontal flow direction is activated, the radial fan-shaped flow passage is started, and the profile geometric parameters are topologically associated with the target rotation angle;

[0092] Step S20222: the valve core rotates at a constant speed to trigger physical deformation: the conical groove responds, and the vertical flow depth increases by 0.02 millimeters every 1° rotation; the fan-shaped flow passage responds, and the horizontal flow width expands by 0.15 millimeters every 1° rotation; through the strict proportion of the profile deformation rate and the rotation angle, the angle-displacement linear conversion is realized;

[0093] Step S20223: the physical deformation is directly mapped to the flow passage section;

[0094] The vertical flow passage section = the basic area + (the rotation angle x the unit angle gain coefficient);

[0095] The horizontal flow passage section = the maximum section area x (the rotation angle / the target angle);

[0096] When the preheating mode is 75° rotation:

[0097] The horizontal flow passage section ratio = 100% x (75 / 90) = 83.3%, calibrated to 85%;

[0098] The vertical flow passage section ratio = 100%-85%=15%.

[0099] In the above embodiments, the present embodiment realizes the contour wake-up mechanism, different flow direction encodes activates differentiated three-dimensional curved surface structure, and makes the same rotating action produce heterogeneous deformation; the angle-displacement constant ratio ensures linear predictability, with a fixed deformation rate of 0.02 mm per degree for the vertical flow channel and 0.15 mm per degree for the horizontal flow channel; the flux self-balancing algorithm uses target angle normalization calculation for the horizontal cross-sectional ratio and automatic balancing through the complement for the vertical cross-sectional ratio, thereby maintaining the total flux conservation of the system; through the three core technologies of geometric contour response, linear displacement conversion and flux self-balancing, the abstract rotating angle is converted into precise fluid control parameters, thereby improving the flow control precision compared with traditional valves.

[0100] Embodiment 7: Based on embodiment 6, the process of establishing topological association between the contour geometric parameters and the target rotating angle in step S20221 provided by the present embodiment comprises the following steps:

[0101] Step S202211: receiving the flow direction identifier of the vertical flow direction activation code or the horizontal flow direction activation code and the target rotating angle value, the flow direction identifier being parsed as a contour type selection signal, and the target angle value being converted into a total deformation amount requirement;

[0102] Step S202212: activating the basic geometric template of the corresponding contour according to the flow direction identifier; when the vertical flow direction is activated, the initial depth and the helical lift angle of the conical groove are loaded; when the horizontal flow direction is activated, the reference width and the radiation interval of the fan-shaped flow channel are called; and the unit angle deformation rate is calculated in combination with the target rotating angle;

[0103] The conical groove depth variation rate = total depth requirement / target angle;

[0104] The fan-shaped flow channel width variation rate = total width requirement / target angle;

[0105] Step S202213: continuously performing the three-dimensional helical curved surface with linearly increasing depth with angle and the radial flow channel with linearly expanding width with angle during the rotation of the valve core, and accurately achieving the preset contour geometric shape at the target angle position;

[0106] Conical groove contour: taking the initial depth as the starting point, adding the unit depth variation rate for each 1° rotation angle, and forming a three-dimensional helical curved surface with linearly increasing depth with angle;

[0107] Fan-shaped flow channel contour: taking the reference width as the origin, adding the unit width variation rate for each 1° rotation angle, and generating a radial flow channel with linearly expanding width with angle.

[0108] In the above embodiment, the embodiment realizes demand-driven parameter calculation, the target rotation angle determines the total amount of deformation (1.8 mm in vertical flow direction and 11.25 mm in horizontal flow direction), the total amount is divided by the target angle to generate a real-time deformation rate; incremental space trajectory accumulation, the rotation angle as the independent variable, each degree triggers the superposition of geometric parameters, so that the contour shape continuously changes with the increase of the angle; accurate mapping of shape-function, the depth of the conical groove is 1.8 mm to ensure that the vertical section ratio is 95%, and the width of the fan-shaped flow channel is 11.25 mm to ensure that the horizontal section ratio is 85%; through the three core technologies of demand quantization, rate generation, and shape accumulation, the abstract control instruction is converted into accurate mechanical geometric configuration, and a physical implementation basis is provided for linear control of the flow channel section.

[0109] In the embodiment 8, on the basis of the embodiment 7, the process of forming a three-dimensional spiral curved surface with a depth linearly increasing with the angle and generating a radial flow channel with a width linearly expanding with the angle in the step S202213 provided by the embodiment of the application comprises the following steps.

[0110] Step S2022131: The valve core receives the unit angle deformation rate parameter and the real-time rotation angle feedback information; the depth change rate parameter is obtained for the conical groove scene, and the width change rate parameter is extracted for the fan-shaped flow channel scene, and the measurement value of the current rotation angle is read synchronously;

[0111] Step S2022132: Trigger the deformation superposition operation once every unit rotation angle; in the conical groove scene, the unit depth change amount is accumulated on the current depth reference; in the fan-shaped flow channel scene, the unit width change amount is expanded on the current width basis, to form a strict linear relationship between the rotation angle and the deformation amount;

[0112] Step S2022133: The accumulated deformation amount drives the continuous evolution of the physical structure, the conical groove generates an equal-pitch spiral curved surface through depth superposition, and the fan-shaped flow channel forms a radial flow channel network through width expansion; at the target rotation angle position, the preset geometric shape is achieved.

[0113] In the above embodiments, the discrete angle triggering mechanism of the present embodiment uses a rotation angle measurement value as a deformation start signal, and a unit angle increment triggers a geometric parameter update; linear increment accumulation ensures that the deformation variable and the angle change variable maintain a constant proportional relationship; real-time solidification of the shape parameter immediately locks the current geometric state after each superposition, ensuring the determinism and irreversibility of the contour evolution. The conical groove is superimposed by multiple unit depths to achieve the target total depth, realizing the proportion control of the vertical flow channel cross section; the fan-shaped flow channel is constructed by continuous unit width expansion to achieve the target total width, achieving the proportion requirement of the horizontal flow channel cross section; the deformation process is terminated when the target angle is reached, and the final geometric shape is solidified synchronously. In combination with the function depth of the flow channel, the target depth of the conical groove forms a specific helix angle structure, inducing the generation of a rotational flow effect of the cooling liquid, optimizing the hydraulic performance of the vertical flow direction; the target width of the fan-shaped flow channel constructs a multi-channel radial network, realizing the uniform distribution of the horizontal flow direction, and ensuring the heat exchange contact area; both of them create optimal fluid dynamics conditions for the directional migration of thermal energy.

[0114] In the above embodiments, the discrete angle triggering mechanism of the present embodiment uses a rotation angle measurement value as a deformation start signal, and a unit angle increment triggers a geometric parameter update; linear increment accumulation ensures that the deformation variable and the angle change variable maintain a constant proportional relationship; real-time solidification of the shape parameter immediately locks the current geometric state after each superposition, ensuring the determinism and irreversibility of the contour evolution. The conical groove is superimposed by multiple unit depths to achieve the target total depth, realizing the proportion control of the vertical flow channel cross section; the fan-shaped flow channel is constructed by continuous unit width expansion to achieve the target total width, achieving the proportion requirement of the horizontal flow channel cross section; the deformation process is terminated when the target angle is reached, and the final geometric shape is solidified synchronously. In combination with the function depth of the flow channel, the target depth of the conical groove forms a specific helix angle structure, inducing the generation of a rotational flow effect of the cooling liquid, optimizing the hydraulic performance of the vertical flow direction; the target width of the fan-shaped flow channel constructs a multi-channel radial network, realizing the uniform distribution of the horizontal flow direction, and ensuring the heat exchange contact area; both of them create optimal fluid dynamics conditions for the directional migration of thermal energy.

[0115] Step S20221331: The conical groove receives a depth increment instruction triggered by a unit rotation angle, and establishes an axial coordinate reference system based on the initial depth;

[0116] Step S20221332: When a unit rotation angle is added, a fixed angle displacement is pushed in the circumferential direction, and a depth increment is accumulated in the axial direction synchronously, forming an equal-angle-pitch spatial trajectory;

[0117] Step S20221333: Radial equidistant offset is performed based on the trajectory line, the cross-sectional shrinkage rate is kept in the axial direction, and an equal-pitch variable-diameter helical surface is generated;

[0118] Step S20221334: The fan-shaped flow channel obtains a width increment parameter triggered by a unit angle, and establishes a polar coordinate grid with the valve core center as the origin; when a unit rotation angle is added: a new branch is divided in the circumferential direction, each branch is expanded in width according to the angle proportion, and a radial branch network is formed;

[0119] Step S20221335: A gradually deepening groove is etched in the radial direction, and is distributed at equal angles in the circumferential direction, to construct a tree-shaped radial flow channel network.

[0120] In the above embodiment, the present embodiment realizes double-degree-of-freedom synchronous driving, strictly binds the axial displacement and the circumferential angle in the helical surface generation, ensures the constant pitch, distributes the width in a fission manner, allocates the width increment according to the branch number in a geometric progression, maintains the uniformity of the flow channel, realizes the dynamic processing conformal technology, and realizes the synchronization of deformation-processing by the physical forming process of the curved surface and the flow channel following the angle change in real time.

[0121] In the above embodiment, the present embodiment realizes double-degree-of-freedom synchronous driving, strictly binds the axial displacement and the circumferential angle in the helical surface generation, ensures the constant pitch, distributes the width in a fission manner, allocates the width increment according to the branch number in a geometric progression, maintains the uniformity of the flow channel, realizes the dynamic processing conformal technology, and realizes the synchronization of deformation-processing by the physical forming process of the curved surface and the flow channel following the angle change in real time.

[0122] Step S202213321: Rotational displacement equivalent binding, receiving a unit rotation angle instruction and an axial depth increment parameter, setting the unit angle value as the circumferential displacement reference quantity, converting the depth increment parameter into the axial displacement equivalent, and establishing the mathematical binding relationship between the angle and the displacement;

[0123] Step S202213322: When detecting a unit angle increment, the circumferential motion module: executing fixed angle displacement promotion, the axial motion module: synchronously activating the depth accumulation mechanism, and generating displacement coupling events;

[0124] Synchronously activating the depth accumulation mechanism refers to that, in the process of rotating the valve core, when 1° angle increment is detected, the axial displacement calculation is triggered, the rotation angle x the preset pitch parameter, and the displacement instruction is synchronously transmitted to the axial servo driver through the high-speed bus to drive the ball screw to complete the displacement. At the same time, the 24-bit grating ruler feeds back the position information in real time to form a closed-loop control, and finally the displacement data is packaged into a 32-byte data frame and written into the storage system; realizing the accurate space mapping from the rotation angle to the axial displacement;

[0125] Step S202213323: Coupling event driven coordinate system, taking the initial position as the origin, accumulating the circumferential displacement in the circumferential direction, and superimposing the axial displacement in the axial direction, continuously generating the equal-pitch space coordinate point sequence.

[0126] In the above embodiment, the present embodiment realizes the displacement equivalent conversion mechanism, the depth increment parameter obtains the axial displacement value through the equivalent conversion, makes the abstract parameter have the space dimension executability, the double-module hard synchronization trigger, the circumferential and axial motion modules accept the same angle increment signal trigger, realizes the nanometer-level time synchronization accuracy, the coordinate sequence is solidified in real time, each space coordinate point is written into the trajectory database immediately after being generated, ensures the continuity and non-tamperability of the trajectory, and through the three core technologies of equivalent conversion, hard synchronization and coordinate solidification, the rotation angle is accurately converted into the three-dimensional space trajectory, and the determinacy generation basis is provided for the high-performance helical surface.

[0127] Embodiment 11: as Figure 5 and Figure 6 As shown in the above embodiments, the liquid cooling data control system for applying waste heat recovery to battery thermal management provided by the embodiment of the application is based on embodiments 1-10, and comprises a liquid cooling cabinet 1, a CDU control unit 2, a dry condenser 3, a plate heat exchanger 4, a waste heat generator set 5, a condenser 6, a central controller 7, a battery pack 8, a temperature sensor 9, a first three-way cock valve 10, a second three-way cock valve 11, and a data processor 12.

[0128] The outlet end of the right side of the liquid cooling cabinet 1 is communicated with the inlet end of the CDU control unit 2 through a pipeline, and the inlet end of the left side of the liquid cooling cabinet 1 is communicated with the outlet end of the CDU control unit 2 through a pipeline; the outlet end of the dry condenser 3 is connected with the CDU control unit 2 through a pipeline and a temperature sensor 9; the inlet end of the dry condenser 3 is communicated with the first three-way cock valve 10 through a pipeline and a temperature sensor 9, the CDU control unit 2 is connected with the second three-way cock valve 11 through a pipeline and a temperature sensor 9, the first three-way cock valve 10 and the second three-way cock valve 11 are connected with the plate heat exchanger 4 through a pipeline, the plate heat exchanger 4 is communicated with the waste heat generator set 5 and the condenser 6 through a pipeline; the central controller 7 is connected with the waste heat generator set 5, the first three-way cock valve 10, the second three-way cock valve 11 and the data processor 12; a preheating module is connected with the CDU control unit 2, the dry condenser 3 and the battery pack 8 through a pipeline, and the battery pack 8 is provided with a precooling module and a plurality of batteries, and the batteries are connected with the data processor 12 through a temperature sensor 9.

[0129] In the above embodiments, the liquid cooling cabinet 1 and the CDU control unit 2 of the embodiment form a closed loop, and the cooling liquid circulates between the battery pack 8 and the heat exchange equipment; the temperature sensor 9 collects battery temperature data in real time, the central controller 7 coordinates the valve opening degree after dynamic analysis of the data processor 12-when the battery temperature is too high, the cooling liquid preferentially flows through the dry condenser 3 for forced heat dissipation; if the temperature is moderate, the fluid is guided to the plate heat exchanger 4 through the first three-way cock valve 10 and the second three-way cock valve 11, at which time the system enters the waste heat recovery mode.

[0130] The plate heat exchanger 4 serves as an energy transfer station, and transfers waste heat to the working medium of the waste heat generator set 5, and after the high-temperature medium drives the generator set to generate electric energy, enters the condenser 6 to complete the phase change cycle. The preheating module and the precooling module constitute a two-way guarantee: when starting at low temperature, the system will call the surplus energy of the waste heat generator set 5 to preheat the battery; when the temperature sensor 9 detects local overheating, the CDU control unit 2 will start turbulent cooling, and the cooling liquid is precisely divided by adjusting the opening and closing ratio of the valve to customize the cooling intensity for different battery modules.

[0131] The embodiment converts the waste heat directly discharged in the traditional system into usable electric energy through the coupling design of the plate heat exchanger 4 and the waste heat generator 5. The measured data shows that 15-25% of the dissipated heat of the battery system can be recovered. The hydraulic distribution design of the double three-way cock valves, combined with the millisecond-level response of the central controller 7, can control the temperature difference between each single cell in the battery pack 8 within ±1.5°C, which improves the temperature uniformity performance of the traditional system by 60%. The parallel structure of the dry condenser 3 and the plate heat exchanger 4 makes the total cooling system COP (COP) reach more than 4.8, and the stable heat exchange efficiency can still be maintained at an environmental temperature of 45°C. The waste heat recovery and temperature control are no longer separate functions, but form an organic closed loop of "cooling-recovery-reuse". It is like giving the battery system a smart metabolic system that not only maintains the appropriate working temperature but also converts metabolic products into nutritional energy.

[0132] The liquid-cooled data center of the embodiment is composed of six modules: a data center module, a waste heat power generation module, a battery thermal management module, and a control module. The data center includes a liquid cooling cabinet 1, a CDU control unit 2, and a dry condenser 3. The waste heat power generation device includes a plate heat exchanger 4, a condenser 6, and a waste heat generator set 5. The battery thermal management is divided into a preheating module and a precooling module and a battery pack 8. The first three-way cock valve 10, the second three-way cock valve 11, the temperature sensor 9, the data processor 12, and the central controller 7 of the PLC form the control module. The multiple temperature sensors 9 monitor the temperature of the battery pack 8 and the environmental temperature in real time and upload the data to the data processor 12. The data processor 12 analyzes the temperature data to determine whether the battery is out of the working range of 20-35°C, generates a precooling or preheating demand signal, and transmits it to the central controller 7.

[0133] The precooling mode (battery temperature ≥ 35°C): the PLC starts the waste heat generator set 5, and at the same time, the horizontal flow valves of the first three-way cock valve 10 and the second three-way cock valve 11 are closed, so that the waste heat of the data center flows into the ORC power generation device. The electric energy generated by power generation drives the air cooling equipment to cool the battery. The preheating mode (battery temperature ≤ 15°C): the central controller 7 controls the vertical flow valves of the first three-way cock valve 10 and the second three-way cock valve 11 to switch the pipeline so that the overheated cooling water directly flows into the battery heat exchange module to heat the battery using waste heat.

[0134] The system of the embodiment continuously monitors the temperature change of the battery, and feeds back to the PLC in real time through the data processor 12. If the temperature returns to the safe range (such as the battery <30℃ after pre-cooling), the central controller 7 stops intervention. After the battery is pre-cooled or pre-heated, whether it needs to be switched to the corresponding module is judged according to the battery temperature measured by the temperature sensor 9. For example, when the outdoor temperature is extremely low, the system is still in the pre-cooling mode, causing the battery to be over-cooled, and the temperature sensor 9 detects that the battery temperature is less than 15℃, the central controller 7 immediately responds to control the three-way stopcock valve to close the horizontal valve and open the vertical valve, and the data center switches the cooling water with residual heat from the pre-cooling module to the pre-heating module, realizing intelligent switching of the mode; after repeated dynamic adjustment of the system, the residual heat of the data center is fully utilized for the thermal management of the battery, and the optimal state of the battery storage is maintained.

[0135] The embodiment utilizes the monitoring unit in the control module to reflect the temperature conditions of the battery pack 8 and the outdoor environment in real time, and transmits the data into the data processor 12, and pre-cools or pre-heats according to the corresponding temperature rise and fall of the environment and the battery. For example, in Beijing, the outdoor temperature in July is averagely concentrated in 29℃~36℃, and the outdoor environment temperature exceeds the normal working temperature of the battery (20℃~35℃). In the high-temperature environment, the battery temperature continuously rises, and after the battery temperature is higher than 35℃, the PLC controls the waste heat power generation device to start, closes the horizontal valve of the first three-way stopcock valve 10 and the horizontal valve of the second three-way stopcock valve 11, and the cooling water with a large amount of residual heat enters the heat exchanger of the waste heat power generation device to exchange heat with the low-boiling-point organic working medium therein. The organic working medium changes from liquid to saturated gas to drive the runner, and the runner drives the generator set to generate electric energy. After that, the used working medium flows through the condenser and becomes liquid working medium again to enter the heat exchanger to participate in the next heat exchange, thus successfully completing an organic Rankine cycle, and the generated electric energy is supplied to the pre-cooling module to cool the battery pack by air cooling. The continuous air cooling caused by the waste heat power generation maintains the temperature of the battery at the normal working temperature under the control of the system.

[0136] In winter, the outdoor environment temperature is -1℃~0℃, and the low temperature accelerates the heat exchange and heat dissipation of the battery. When the sensor detects that the battery pack is lower than 15℃, the battery pre-heating module is started, the PLC closes the vertical valve of the first three-way stopcock valve 10 and the vertical valve of the second three-way stopcock valve 11, and guides the over-heated cooling water of the data center to flow into the battery pre-heating module. After several times of repeated heat exchange, the heat is conducted to the battery pack, and the battery temperature is maintained between 15℃~16℃ by continuously pre-heating.

[0137] The present embodiment creatively recycles the large amount of waste heat generated by the liquid cooling system of the data center, intelligently couples it with the thermal management needs of the battery (such as the backup power supply system), and builds an efficient, energy-saving, and sustainable comprehensive system. The core advantage is to realize the revolutionary change of the data center "burden" to the battery "resource", and bring many significant benefits. The most prominent value is to greatly improve the overall energy efficiency and reduce waste: the system monitors the battery temperature in real time through sensors, and flexibly changes the discarded low-grade data center waste heat into treasure under the intelligent control of PLC. When the battery needs to be preheated (such as low-temperature start or cold environment), the waste heat is directly used to quickly heat the battery through the heat exchanger, completely or significantly reducing the dependence on external electric heating; when the battery needs to be cooled, the low-temperature waste heat is introduced into the organic Rankine cycle (ORC) power generation device, and the generated electric energy is used to drive the air-cooled equipment to cool the battery, thereby greatly reducing or even replacing the traditional cooling energy consumption driven by the power grid. The on-demand and dynamic "preheating-cooling" intelligent switching not only realizes the efficient closed-loop utilization of data center waste heat, greatly improves the comprehensive energy utilization efficiency, minimizes energy waste, but also directly optimizes the battery thermal management performance: fast preheating ensures the battery performance and charging safety in low-temperature environment, and effective cooling prevents the risk of battery overheating, maintains its operation in the best temperature window, significantly prolongs the battery life and reduces the replacement cost.

[0138] In terms of economic benefits, the system reduces the operating cost of battery thermal management through direct waste heat utilization and ORC power generation, and saves the power consumption of heating and cooling links. At the same time, it finds a high-value outlet for the low-temperature waste heat that is difficult for the data center to utilize, improves the economy of the data center, and the electric energy generated by the ORC can even partially feedback to assist other loads. The environmental benefits are particularly prominent: by replacing external fossil energy power, it significantly reduces the carbon emissions related to battery thermal management; reduces the thermal pollution of the data center to the surrounding environment; and by prolonging the battery life, it indirectly reduces resource consumption and waste battery disposal pressure. In addition, the system enhances the adaptability and advantage in specific scenarios (such as cold regions or high electricity price areas). Through innovative system integration and intelligent control, not only the two key problems of data center waste heat recovery and battery thermal management are solved, but also great energy, economic, environmental and operational values are created, which is of great significance to promote the construction of green data centers and the development of sustainable energy technologies.

[0139] Figure 7 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present invention is shown.

[0140] The electronic device can include a central processor / microprocessor / master control chip, etc. 13; a storage medium 14 coupled to the central processor / microprocessor / master control chip, etc. 13 and storing therein computer executable instructions for performing steps of various methods of embodiments of the present application when executed by the processor.

[0141] The central processor / microprocessor / master control chip, etc. 13 can include, but not limited to, for example, one or more processors or microprocessors, etc.

[0142] The storage medium 14 can include, but not limited to, for example, random access memory (RAM), read only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, computer storage medium (e.g. hard disk, floppy disk, solid state disk, removable disk, CD-ROM, DVD-ROM, Blu-ray disc, etc.).

[0143] In addition, the electronic device can also include, but not limited to, a data bus 15, an input / output bus / external bus / device bus, etc. 16, a display 17 and an input / output device 18 (e.g. keyboard, mouse, speaker, etc.), etc.

[0144] The central processor / microprocessor / master control chip, etc. 13 can communicate with external devices (17, 18, etc.) through the I / O bus 7 via wired or wireless network (not shown).

[0145] The storage medium 14 can also store at least one computer executable instruction for performing steps of various functions and / or methods in embodiments described in the present technology when executed by the central processor / microprocessor / master control chip, etc. 13.

[0146] In one embodiment, the at least one computer executable instruction can also be compiled or composed as a software product, in which one or more computer executable instructions are executed by the processor to perform steps of various functions and / or methods in embodiments described in the present technology.

[0147] Figure 8 A schematic diagram of a computer readable storage medium according to embodiments of the present application is shown.

[0148] As Figure 8As shown, the non-transitory computer-readable storage medium 20 stores instructions, e.g., computer-readable instructions 19. When the computer-readable instructions 19 are executed by a processor, the methods described above can be performed. The non-transitory computer-readable storage medium includes, but is not limited to, volatile memory, such as random access memory (RAM) and / or cache memory and / or non-volatile memory, such as read only memory (ROM), hard drives, solid state drives, or other memory. The non-transitory computer-readable storage medium 20 can be connected to a computing device, such as a computer, and the methods described above can be performed when the computing device executes the computer-readable instructions 19 stored on the non-transitory computer-readable storage medium 20.

[0149] In several embodiments provided by the present application, it should be understood that the disclosed apparatus and method can be implemented in other manners. For example, the described apparatus embodiments are merely schematic. For example, the division of the units is only a logical function division. There can be another division manner for the actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0150] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. In actual implementation, some or all of the units can be selected according to the actual needs to achieve the purposes of the embodiments.

[0151] In addition, each function unit in the embodiments of the present application can be integrated in a processing unit, or each unit can exist physically as a separate unit, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware, or in the form of software functional units.

[0152] If the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for executing all or part of the steps of the embodiments of the present application by a computer device (which can be a personal computer, a server, or a network device, etc.). The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (English full name: Read-Only Memory, English abbreviation: ROM), a random access memory (English full name: Random Access Memory, English abbreviation: RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0153] The above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A liquid cooling data control method for applying waste heat recovery to battery thermal management, characterized by, The method comprises the following steps: The central controller receives the control decision signal of the pre-cooling mode instruction or the pre-heating mode instruction, and reconfigures the fluid path through the double three-way stop valve; realizes the directional migration of the cooling liquid among the data center, the waste heat power generation device and the battery pack, and completes the dynamic configuration of the heat energy transmission path; The reconfigured heat energy transmission path activates the energy conversion mechanism, forming the energy conversion chain of waste heat, electric energy, refrigeration or waste heat, direct heating and temperature control; The process of completing the dynamic configuration of the heat energy transmission path comprises the following steps: The pre-cooling / pre-heating instruction received by the central controller is converted into hydraulic topology coding, the pre-cooling mode generates a vertical flow direction activation code, and the pre-heating mode generates a horizontal flow direction activation code; the vertical flow direction activation code and the horizontal flow direction activation code comprise the cooperative action time sequence and the opening and closing angle parameters of the double valve; The hydraulic topology coding drives the double three-way stop valve to execute three-dimensional flow channel switching, and the rotation angle of the valve core and the coding instruction form a linear mapping relationship; The reconfigured flow channel triggers the change of the cooling liquid dynamics, the plate exchange passage causes the high-temperature cooling liquid to form turbulent shear in the plate heat exchanger, maximizes the heating surface of the waste heat power generator set, the direct heating circuit drives the overheated fluid to flow along the surface of the battery module in a serpentine manner, and the directional migration of heat energy from the heat source to the sink is completed through the flow velocity gradient to realize heat exchange.

2. The liquid cooling data control method for applying waste heat recovery to battery thermal management of claim 1, wherein, The process that the rotation angle of the valve core and the coding instruction form a linear mapping relationship comprises the following steps: The vertical flow direction activation code or the horizontal flow direction activation code is input into an angle-time sequence resolver, the main valve rotation reference angle in the code is extracted, the cooperative delay time of the slave valve is analyzed, the opening and closing gradual rate parameters are separated, and a mechanical action sequence of the double valves is generated, which is independent but time-coupled; The mechanical action sequence drives the stop valve actuator, the main valve core rotates: the reference angle is the target position, and the rotation is uniform at the gradual rate; the slave valve core follows: the rotation is started after a specified delay time, and the same angular velocity is maintained; the flow channel cross section is reconfigured: the valve core at a specific angle corresponds to a specific flow channel cross section ratio, forming a linear relationship between the rotation angle and the flow area; The double valves complete the spatial topology construction when reaching the target angle, the pre-cooling mode is in a 90° position, the first three-way stop valve is in a vertical upward passage cross section ratio of 95%, the second three-way stop valve is in a vertical downward passage cross section ratio of 95%, and the horizontal flow channel cross section is contracted to 5% or less; the pre-heating mode is in a 75° position: the first three-way stop valve is in a horizontal left passage cross section ratio of 85%, the second three-way stop valve is in a horizontal right passage cross section ratio of 85%, the vertical flow channel cross section is contracted to 15%, and the physical reconfiguration of the cooling liquid passage is realized.

3. The liquid cooling data control method for applying waste heat recovery to battery thermal management of claim 2, wherein, The process of forming a linear relationship between the rotation angle and the flow area comprises the following steps: The cock valve actuator receives a rotation angle instruction of a mechanical action sequence, activates a three-dimensional curved surface profile inside a valve core, when a vertical flow direction is activated, a conical groove rising axially is activated, when a horizontal flow direction is activated, a radial fan-shaped flow channel is started, the profile geometry parameters are topologically associated with the target rotation angle, the flow direction identifier receiving the vertical flow direction activation code or the horizontal flow direction activation code and the target rotation angle value, the flow direction identifier is parsed as a profile type selection signal, and the target angle value is converted into a total amount of deformation requirement, according to the flow direction identifier, the basic geometry template of the corresponding profile is activated, when the vertical flow direction is activated: the initial depth of the conical groove and the helical rise angle are loaded, when the horizontal flow direction is activated: the reference width of the fan-shaped flow channel and the radial spacing are called, the unit angle deformation rate is calculated in combination with the target rotation angle, the three-dimensional helical curved surface with the depth linearly increasing with the angle and the radial flow channel with the width linearly expanding with the angle are continuously formed in the valve core rotation process, and the preset profile geometric shape is accurately achieved at the target angle position; the valve core rotates at a constant speed to trigger physical deformation: the conical groove responds, and the vertical flow depth increases by 0.02 mm every 1° rotation; the fan-shaped flow channel responds, and the horizontal flow channel width expands by 0.15 mm every 1° rotation; through the strict proportion of the profile deformation rate and the rotation angle, the angle-displacement linear conversion is realized; The physical deformation is directly mapped to the flow cross section.

4. The liquid cooling data control method for applying waste heat recovery to battery thermal management of claim 3, wherein, The process of forming a three-dimensional helical curved surface with the depth linearly increasing with the angle and generating a radial flow channel with the width linearly expanding with the angle includes the following steps: The valve core receives the unit angle deformation rate parameter and the real-time rotation angle feedback information; the depth change rate parameter is obtained for the conical groove scene, and the width change rate parameter is extracted for the fan-shaped flow channel scene, and the measurement value of the current rotation angle is synchronously read; Triggering a deformation superposition operation once every unit rotation angle; in the conical groove scene, the unit depth change amount is accumulated on the current depth reference; in the fan-shaped flow channel scene, the unit width change amount is expanded on the current width basis, forming a linear relationship between the rotation angle and the deformation variable; The accumulated deformation variable drives the physical structure to continuously evolve, the conical groove generates an equal-pitch helical curved surface through depth superposition, and the fan-shaped flow channel forms a radial flow channel network through width expansion; at the target rotation angle position, the preset geometric shape is achieved.

5. The liquid cooling data control method for applying waste heat recovery to battery thermal management of claim 4, wherein, The process of generating an equal-pitch helical curved surface and forming a radial flow channel network includes the following steps: The conical groove receives the depth increment instruction triggered by the unit rotation angle, and establishes an axial coordinate reference system based on the initial depth; Every time the unit rotation angle is increased, a fixed angle displacement is pushed in the circumferential direction, and the depth increment is synchronously accumulated in the axial direction, forming an equal-angle pitch space trajectory; Radial equidistant offset is performed based on the trajectory line, the cross section is gradually contracted in the axial direction, and an equal-pitch variable-diameter helical curved surface is generated; The fan-shaped flow channel obtains the width increment parameter triggered by the unit angle, and establishes a polar coordinate grid with the valve core center as the origin; every time the unit rotation angle is increased: a new flow branch is divided in the circumferential direction, the width of each branch is expanded according to the angle proportion, and a radial branch network is formed; The gradually deepening grooves are etched along the radial direction and are distributed at equal angular intervals in the circumferential direction to construct a tree-shaped radial flow channel network.

6. The liquid cooling data control method for applying waste heat recovery to battery thermal management of claim 5, wherein, The process of forming the equiangular pitch spatial trajectory comprises the following steps: The rotational displacement equivalent binding receives a unit rotational angle instruction and an axial depth increment parameter, sets a unit angle value as a circumferential displacement reference quantity, converts the depth increment parameter into an axial displacement equivalent, and establishes a mathematical binding relationship between the angle and the displacement; Upon detecting each unit angle increment, the circumferential movement module performs a fixed angle displacement advance, and the axial movement module synchronously activates a depth accumulation mechanism to generate a displacement coupling event; The coupling event drives a coordinate system to continuously generate an equi-pitch spatial coordinate point sequence by taking an initial position as an origin, accumulating a circumferential displacement quantity in the circumferential direction, and superimposing an axial displacement quantity in the axial direction.

7. The liquid cooling data control method for applying waste heat recovery to battery thermal management of claim 1, wherein, The temperature sensor collects battery cell temperature and ambient temperature data in real time and transmits them to the data processor for multidimensional analysis; the data processor performs thermal state evaluation based on a preset battery operating temperature range; The results of the thermal state evaluation form a control decision signal, which is transmitted to the central controller to trigger subsequent actions; When it is detected that any battery cell temperature is not less than the upper limit of the preset battery operating temperature range, a pre-cooling mode instruction is generated; when it is detected that the average temperature of the battery pack is not greater than the lower limit of the preset battery operating temperature range, a pre-heating mode instruction is generated.

8. The liquid cooling data control method for applying waste heat recovery to battery thermal management of claim 1, wherein, In the pre-cooling mode of dynamic configuration of the thermal energy transmission path: the horizontal flow valves of the first and second three-way stopcock valves are closed, and the vertical flow valve is opened, so that the data center waste heat flows through the plate heat exchanger; in the pre-heating mode: the double-valve vertical flow valve is closed, and the horizontal flow valve is opened, so that the overheated cooling liquid directly passes through the battery heat exchange module; In the energy conversion mechanism activated by the reconstructed thermal energy transmission path, in the pre-cooling mode: the plate heat exchanger transfers waste heat to the waste heat power generation unit working medium, and the power generation unit generates electricity to drive the air cooling equipment to implement forced cooling of the battery pack; in the pre-heating mode: the high-temperature cooling liquid directly flows through the battery heat exchange module to release heat, and at the same time, the central controller adjusts the opening and closing ratio of the valve to achieve hierarchical heating of different battery modules through turbulent cooling.

9. A liquid-cooled data control system applying waste heat recovery to battery thermal management, implementing the liquid-cooled data control method applying waste heat recovery to battery thermal management according to any one of claims 1 to 8, characterized in that, It comprises: a liquid cooling cabinet, a CDU control unit, a dry condenser, a plate heat exchanger, a waste heat power generation unit, a condenser, a central controller, a battery pack, a temperature sensor, a first three-way stopcock valve, a second three-way stopcock valve, and a data processor; wherein the outlet end of the right side of the liquid cooling cabinet is connected to the inlet end of the CDU control unit through a pipeline, and the inlet end of the left side of the liquid cooling cabinet is connected to the outlet end of the CDU control unit through a pipeline; the outlet end of the dry condenser is connected to the CDU control unit through a pipeline and a temperature sensor; the inlet end of the dry condenser is connected to the first three-way stopcock valve through a pipeline and a temperature sensor, and the CDU control unit is connected to the second three-way stopcock valve through a pipeline and a temperature sensor; The first three-way plug valve and the second three-way plug valve are connected with the plate heat exchanger through pipelines, and the plate heat exchanger is communicated with the waste heat generator set and the condenser through pipelines; the central controller is connected with the waste heat generator set, the first three-way plug valve, the second three-way plug valve and the data processor; the preheating module is connected with the CDU control unit, the dry condenser and the battery pack through pipelines, and the battery pack is provided with a precooling module and a plurality of batteries; the batteries are connected with the data processor through temperature sensors.

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