23 results about "Battery fluid" patented technology

This invention relates to the field of battery liquid cooling technology, specifically to a liquid cooling water replenishment device for electronic components. The device includes a battery liquid cooling assembly, a liquid cooling circulation assembly, a heat dissipation assembly, a coolant storage assembly, a water replenishment pipe with an L-shaped connector, and a control assembly. The two ends of the liquid cooling circulation assembly are connected to the battery liquid cooling assembly and the heat dissipation assembly, respectively. The coolant storage assembly is connected to both the liquid cooling circulation assembly and the heat dissipation assembly. This application utilizes a double-layer liquid cooling system to ensure the cooling effect of the upper liquid cooling layer even when coolant is depleted, ensuring the battery assembly can operate in a suitable temperature environment. Furthermore, the detection of reduced or interrupted flow in the lower liquid cooling layer controls the operation of corresponding components for replenishment. The coolant storage assembly also facilitates rapid and sealed replenishment, ensuring the quality of the added coolant and preventing the entry of foreign matter.

This application relates to the field of new energy vehicle technology and discloses a method for monitoring and data acquisition of a power battery liquid cooling system. The method includes acquiring the physical state information of the liquid cooling system in the power battery module of a target vehicle; performing correlation analysis between the physical state information and the battery health state degradation information of the power battery module to determine the causes of aging in the power battery module; quantitatively evaluating the battery health state acceleration degradation factor of the power battery module based on the causes of aging; and predicting the remaining service life of the power battery module based on the battery health state acceleration degradation factor. By establishing a direct quantitative correlation between the internal physical state of the liquid cooling system and battery aging, this method can diagnose the accelerated battery aging problem caused by the performance degradation of the cooling system (such as dirt deposition) from the root cause, overcoming the limitation of existing technologies that can only perform macroscopic temperature monitoring and cannot deeply diagnose the cause.

The utility model relates to welding deformation correction device technical field especially relates to a kind of correction device for harmonica tube type battery liquid cooling plate brazing deformation, the correction device includes: harmonica tube holder, for clamping on two harmonica tubes;Collecting pipe correction pliers, for clamping on the short collecting pipe welded with the two harmonica tubes;The harmonica tube holder includes handrail frame;The collecting pipe correction pliers include handle.In the correction when the short collecting pipe of the inclination after welding, utilize harmonica tube holder clamping on the corresponding two harmonica tubes of the short collecting pipe of the inclination, while utilizing collecting pipe correction pliers clamping on the short collecting pipe, operator hand holds on handrail frame and keeps unmoved, the other hand holds on handle, and rotates handle clockwise or counterclockwise, can correct short collecting pipe.

This invention belongs to the technical field of battery liquid cooling plate housings, and discloses a reinforced frame-type battery liquid cooling plate housing structure and energy storage system. The reinforced frame-type battery liquid cooling plate housing structure includes a liquid cooling plate, a transition fixing component, and a pressure-bearing beam assembly. The pressure-bearing beam assembly includes a pressure-bearing front beam, a pressure-bearing middle beam, and a pressure-bearing rear beam. Along the length direction of the liquid cooling plate, the pressure-bearing middle beam is located between the pressure-bearing front beam and the pressure-bearing rear beam. The pressure-bearing front beam and the pressure-bearing rear beam are fixedly connected to the lower end face of the liquid cooling plate. The pressure-bearing middle beam includes a middle beam body, a first protrusion, and multiple second protrusions. The transition fixing component is fixedly connected to the bottom wall of a first groove located in the middle of the lower end face of the liquid cooling plate. The first protrusion on the middle beam body is fixedly connected to the transition fixing component, so that the pressure-bearing middle beam can support the liquid cooling plate through the transition fixing component, avoiding the direct connection of the pressure-bearing middle beam to the liquid cooling plate, preventing the leakage of the cooling medium in the liquid cooling plate, and ensuring the cooling effect of the liquid cooling plate.

The application discloses a battery liquid cooling device and method based on vibration strengthened phase change, which comprises a sealed box body containing cooling liquid, a battery, a vibration assembly, a controller, a gas cavity is arranged between the upper surface of the cooling liquid and the top wall in the sealed box body, the battery is detachably installed in the sealed box body and is immersed in the cooling liquid, the vibration assembly is arranged at the bottom outside the sealed box body, a pressure sensor is installed on the top surface in the sealed box body, one end of a pressure regulating pipeline is communicated with the gas cavity of the sealed box body, the other end is connected with the inlet of a condenser, the outlet of the condenser is connected with a circulating water pipeline, and the circulating water pipeline is communicated with the bottom of the sealed box body. The vibration assembly is used for applying periodic mechanical vibration to the sealed box body, actively destroying the thermal boundary layer on the surface of the battery, synchronously strengthening the vaporization and condensation phase change processes of the cooling liquid, and forming a vibration and phase change coordinated heat transfer enhancement mechanism.

A method for controlling vehicle power, a computer system, and a vehicle are disclosed. The vehicle includes a fuel cell, a power battery, a hydraulic system, an accessory system, and a visual sensor. The method includes obtaining an image of a construction earthwork by the visual sensor; identifying a type of the construction earthwork by an earthwork classification model based on the image of the construction earthwork; obtaining a power demand load spectrum of the vehicle within a first time duration; correcting the type of the construction earthwork based on the power demand load spectrum; inputting the power demand load spectrum and the corrected type of the construction earthwork into a pre-trained neural network prediction model, and predicting a power load spectrum of the vehicle within a second time duration; and determining optimal power allocation between the fuel cell and the power battery based on the predicted power load spectrum.

Disclosed are a method for controlling vehicle power, a computer system, and a vehicle. The vehicle includes a fuel cell, a power battery, a hydraulic system, an accessory system, and a visual sensor. The method is executed by a processing circuit of the computer system, and the method includes obtaining an image of construction earthwork through the visual sensor; identifying a type of the construction earthwork through an earthwork type identification model based on the image of the construction earthwork; obtaining a demand power load spectrum of the vehicle within a first time length; correcting the type of the construction earthwork based on the demand power load spectrum; inputting the demand power load spectrum and the corrected type of the construction earthwork into a pre-trained neural network prediction model, predicting a power load spectrum of the vehicle within a second time length through the neural network prediction model; and determining an optimal power distribution between the fuel cell and the power battery based on the predicted power load spectrum, so as to minimize an operation cost objective function within the second time length.

This invention relates to a multi-parameter optimization method for a power battery liquid cooling system. By organically integrating orthogonal experiments, NSGA-II multi-objective optimization, and entropy weight method decision-making, a closed-loop optimization process is constructed. This method can automatically and objectively balance the inherent conflict between the heat dissipation performance and flow energy consumption of the power battery liquid cooling system, accurately finding the globally optimal equilibrium point. This solves the technical problem that traditional methods struggle to consider multiple objectives and are prone to getting trapped in local optima. By replacing time-consuming high-precision numerical simulations with response surface surrogate models, the time for a single performance evaluation is shortened from hours to milliseconds. Combined with efficient sampling through orthogonal experiments, the computational and time costs of preliminary data collection and optimization iterations are significantly reduced. High-fidelity simulation verification ensures the authenticity of the optimization results. Sensitivity analysis identifies key sensitive variables, assesses the robustness of optimal parameters, and selects solutions insensitive to manufacturing tolerances and operational fluctuations, or provides a basis for decision-making adjustments.

This application discloses a battery liquid cooling plate clamp, comprising: a first support base and a second support base; guide rail modules respectively disposed on the first support base and the second support base; at least one clamping module slidably connected to the guide rail module, wherein a first gripper and a second gripper in the clamping module can move closer or further apart to clamp the liquid cooling plate from the side; a synchronization module is provided in the guide rail module to synchronize the clamping states in different clamping modules; and a buffer module is provided at the upper end of the two support bases. The intended effects are: the first gripper and the second gripper can synchronously clamp the battery liquid cooling plate from the side, maximizing the exposure of the machined surface; the battery liquid cooling plate can be disassembled synchronously and conveniently; the buffer module prevents the clamp from touching the upper end of the streamline when moving within the streamline, protecting the appearance integrity of the liquid cooling plate and improving the transportation efficiency of the liquid cooling plate.

The application discloses a battery liquid cooling device, a battery pack and a vehicle, and belongs to the battery liquid cooling field.The battery liquid cooling device comprises a harmonica tube assembly and a current collector assembly; the harmonica tube assembly and the current collector assembly are arranged in layers; the current collector assembly comprises a first current collector and a second current collector; the first current collector and the second current collector are distributed at intervals along a first direction; the first current collector and the second current collector are connected to the same side of the harmonica tube assembly along a third direction; the harmonica tube assembly is in communication with the first current collector; and the harmonica tube assembly is in communication with the second current collector.In the application, the harmonica tube assembly and the current collector assembly are arranged in layers, and the first current collector and the second current collector are distributed at intervals; the first current collector and the second current collector are arranged on the same side of the harmonica tube assembly; and once the battery liquid cooling device is applied to the battery pack, the bottom guard plate of the battery pack can be brought into contact with the harmonica tube assembly, so that the size of the cell assembly of the battery pack can be increased.

Provided are a battery liquid cooling system and a battery pack. The system includes at least two liquid cooling flow path modules sequentially arranged in a first direction. The liquid cooling flow path module includes multiple serpentine tubes and multiple expanded-joint tubes. All the serpentine tubes are disposed side by side at intervals in the first direction. The serpentine tubes extend in a second direction. A folded-back flow channel extending in a length direction of the serpentine tube is disposed within the serpentine tube. A liquid inlet end of the serpentine tube and a liquid outlet end of the serpentine tube are respectively disposed at two ends of the folded-back flow channel and are located at the same end in the length direction of the serpentine tube. Every two adjacent serpentine tubes communicate with each other through two expanded-joint tubes in an expansion manner.

This utility model discloses a liquid level inspection device for liquid batteries, including a frame, a conveyor roller conveyor, and a tilting device. The conveyor roller conveyor is mounted on the frame and includes multiple conveyor rollers. The tilting device includes a lifting cylinder and a tilting plate. The top of the tilting plate is tilted, and the lifting cylinder is located below the conveyor roller conveyor. The bottom of the tilting plate is connected to the piston rod of the lifting cylinder. The tilting plate is located between two adjacent conveyor rollers, and a baffle is provided on one side of the conveyor roller conveyor. When the liquid level of the battery needs to be checked, the piston rod of the lifting cylinder extends, pushing the tilting plate upward, causing the top of the tilting plate to tilt the battery that has been conveyed to the position by the conveyor roller conveyor. By adjusting the tilt angle of the top of the tilting plate, different types of batteries can be accommodated. The liquid level of the tilted battery can be visually observed, allowing operators to quickly determine whether the liquid level meets the requirements without the need to insert special measuring fixtures, greatly improving inspection efficiency and reducing the workload during inspection.

This application discloses a battery liquid cooling control system, method, apparatus, and equipment. By setting up three types of temperature acquisition units—nickel sheet, coolant, and heat sink—it achieves accurate monitoring of the temperature status of the entire battery cooling chain, covering key stages of heat generation, transfer, and dissipation. The control unit dynamically adjusts the pump speed based on the three types of temperature data, flexibly adapting to different operating conditions: reducing the speed when the battery is at low power output to reduce additional energy consumption; increasing the speed under high heat conditions to enhance heat dissipation efficiency and effectively reduce the high-temperature risk in the area where the nickel sheet is located. Simultaneously, by implementing dynamic adjustment, it can also alleviate the problem of slow battery heating in cold environments to a certain extent, significantly improving the energy efficiency and adaptability of the liquid cooling system and extending battery life.

This invention discloses a cooling device suitable for high heat flux density electronic devices, comprising a thermoelectric conversion device and a rapid cooling device disposed on both sides of the high heat flux density electronic device. The thermoelectric conversion device includes a semiconductor thermoelectric generator, a finned plate, a temperature sensor, and a fan sequentially attached from the heat source side, and the semiconductor thermoelectric generator, finned plate, temperature sensor, and fan are installed in a first chamber. The rapid cooling device includes a liquid cooling plate attached to the non-heat source side, and the liquid cooling plate is installed in a second chamber. The second chamber also houses a battery, a liquid pump, and a controller. The battery is connected to the semiconductor thermoelectric generator, fan, liquid pump, controller, and an external power supply system. The inlet of the liquid cooling plate is connected to the outlet of the liquid pump. The controller is connected to the fan, temperature sensor, and liquid pump. This solution can avoid coolant leakage caused by thermal shock to the connectors of electronic devices due to the alternating hot and cold temperatures of the coolant.

This invention provides a containerized liquid-cooled energy storage system and its temperature control method, including a core energy storage unit composed of multiple battery clusters, each battery cluster containing multiple series-connected battery packs; a liquid-cooled temperature control system employing an independent dual-system variable frequency liquid-cooling architecture with primary and backup redundancy design to control the internal temperature difference within 5°C; and a multi-level safety protection system including intelligent detection devices and targeted fire extinguishing devices installed in each battery pack, as well as cluster-level fire protection intervals between battery clusters. This invention uses a dual-cycle liquid-cooling system, which can precisely control the system temperature difference within 5°C, preferably within 3°C, effectively solving the problem of excessive temperature difference and accelerated cell degradation in traditional liquid-cooled / air-cooled systems; simultaneously, it integrates online leakage detection and intelligent dehumidification units to monitor the liquid-cooling circuit status in real time, suppress condensation inside the compartment, prevent equipment damage, further ensure stable system operation, and extend the service life of batteries and equipment.

The application discloses a battery bulging self-adaptive flexible two-phase liquid cooling thermal runaway early warning method and system, and relates to the technical field of battery liquid cooling heat dissipation. The method comprises the following steps: S1, collecting the data of the cold plate and the battery in real time and performing data preprocessing; S2, judging whether the battery is bulging or not, and identifying the bulging abnormal event; S3, for the bulging abnormal event, self-adaptive flexible regulation and control are performed on the battery bulging working condition; the liquid cooling heat conduction efficiency after the self-adaptive flexible regulation and control is evaluated, and the local heat conduction performance is optimized and adjusted; S4, after the local heat conduction performance optimization and adjustment are completed, the cooperative heat dissipation capacity margin is evaluated, and the liquid cooling thermal runaway early warning and the thermal runaway intervention measures are implemented. The method solves the problem that in the dynamic deformation working condition of battery bulging, the existing liquid cooling heat dissipation system is difficult to maintain efficient heat conduction and stable adhesion, lacks real-time sensing and active early warning mechanism, and the local overheating and thermal runaway risk are difficult to be inhibited in time.