Air-Cooling for EV Battery Temperature Control

Battery pack, thermal management system, and control method for a battery pack that balances heat dissipation with waterproofing. The pack has sealed cavities with internal channels for active cooling using fans. Temperature sensors monitor cell groups. The control system adjusts cooling and charging based on cell temps.

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Battery thermal management system for electric vehicles that provides flexible cooling and heating options to improve battery performance and reliability. The system integrates both air and liquid cooling/heating into a single enclosure surrounding the battery packs. It uses a gas channel with a cold medium source for air cooling, a liquid channel with a heat source/sink for liquid cooling/heating, and a temperature control component for further heat management. This allows adaptive cooling/heating based on ambient conditions and battery needs.

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Battery pack design with active cooling and waterproofing for high-power, fast-charging batteries. The pack has a sealed housing with a bracket inside forming multiple battery cell compartments. Fans are positioned to actively cool the cells through heat dissipation passages. This allows high-power discharges and quick recharges without overheating. The sealed compartments prevent water ingress. Temperature sensors monitor cell temps and fans/charging are controlled to maintain safe ranges.

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Battery pack thermal management to improve efficiency and extend life by utilizing waste heat from electronic devices and reducing temperature differences between battery compartments. The pack has separate cooling and heat recovery fans for the device and battery compartments. Sensors monitor temperatures at multiple positions. When the device compartment reaches a threshold, the fans are used to cool it. When the battery compartment is below a threshold, the fans transfer heat from the device compartment to heat the battery. This uses device waste heat to heat the battery in cold environments and balances temperatures.

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Energy-saving and heat-dissipating battery pack that reduces waste heat and improves cooling efficiency compared to conventional passive cooling methods. The pack has a shell with battery cells inside. Thermoelectric power generating sheets are attached to the side walls of the cells. A power converter and fan are also inside the pack. The thermoelectric sheets, converter, and fan are electrically connected. When the cells discharge, the converter converts excess power to drive the fan. The fan increases airflow around the cells to cool them. The thermoelectric sheets convert some of the waste heat into electrical power. This active cooling and waste heat recovery improves overall pack efficiency compared to passive cooling.

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Power battery thermal management system for electric vehicles that improves cooling and temperature uniformity compared to conventional designs. The system uses a fan, radiator, and heat conductor between cells to rapidly dissipate heat from the battery pack. The fan accelerates airflow around the cells to transfer heat to the radiator on the opposite side. The heat conductor between cells accelerates heat transfer between them. This faster cooling and uniformization is especially important for lithium batteries that are sensitive to temperature extremes.

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An air-cooled battery pack design for small-scale air-cooled energy storage systems. The battery pack has a box with an internal cooling chamber that the battery module is inserted into. Air channels are formed at the top and bottom of the module to connect to the chamber. Gaps on the sides of the box allow external air to flow into the channels. This provides forced air cooling of the battery module through the chamber. The pack can be used in air-cooled energy storage systems without modifying the container.

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Phase change composite battery thermal management system that integrates cooling, heating, and waste heat recovery to efficiently maintain optimal battery operating temperature. The system uses a phase changer, heat exchanger, electric heater, thermoelectric converter, and valve. Air is circulated through the system to cool the battery during normal operation. In low temperatures, waste heat from thermoelectric conversion is used to heat the battery. This prevents battery degradation and thermal runaway by maintaining optimal temperature.

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Cooling system and method for battery thermal management that prevents dust accumulation inside the battery while still effectively cooling the battery. The system uses a rotating fan embedded in the bottom of the battery box that automatically turns to face the heat exchange fins. This prevents dust from blowing into the box and settling on the fins. The fan is actuated by a push component that translates when condensate enters a channel. Additionally, the system has a liquid cooling loop with a pump, heat exchanger, and storage tank to cool the battery. A ventilation assembly cools the return pipe with wind. The system relieves pressure and provides full cooling for the return pipe.

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A chassis-integrated high-voltage (HV) battery thermal management system for electric vehicles that reduces space requirements and complexity compared to liquid-cooled battery packs. The system integrates the battery chamber and cooling plate into the vehicle chassis. Heat pipes transfer heat from the battery cells to the chassis. Cooling fins on the chassis surface sink the heat into the ambient. This eliminates separate cooling tubes and tanks while utilizing the vehicle structure for heat dissipation.

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Thermal management system for electric vehicle battery packs that uses both air and liquid cooling to improve temperature consistency and prevent damage. The system has a battery box with a phase change material, a cooling module with air ducts and a fan, and a speed regulating fan. The phase change material absorbs heat during charging and releases it during discharging. Air is circulated by the fan through the cooling module and ducts to dissipate heat. The system also uses a thermocouple to monitor temperature. The combination of air and liquid cooling provides better temperature control and consistency compared to just air or liquid cooling alone.

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Air-cooled and liquid-cooled hybrid heat dissipation system for lithium-ion batteries that provides more consistent and efficient cooling compared to just air or liquid cooling. The system uses temperature sensors in the battery pack to detect hot spots. If any battery gets too hot, it sends an air cooling instruction to the main air cooler. If still too hot, it also sends a liquid cooling instruction to the internal liquid coolers. This combined air and liquid cooling provides targeted cooling to hot areas while preventing overcooling of cooler areas. The air and liquid coolers have adjustable settings based on the detected battery temperatures.

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Battery pack thermal management system that enables precise temperature control of individual cells in a battery pack. The system uses separate detection devices for each cell to monitor internal parameters like temperature, voltage, current. A control device connects to the cell detection and the heat exchanger. It uses the cell data to selectively cool or heat cells through the exchanger. This allows regulating cell temperatures independently instead of whole pack regulation.

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Efficient cooling system for battery packs in electric vehicles that prevents temperature imbalance between cells. The system uses a sealed cylinder with multiple battery modules separated by cooling plates. Heat pipes connect adjacent modules. Inside the cylinder, guide fans disturb air flow. Outside, cooling fans dissipate heat. Temperature sensors monitor pack and pipes. A control unit coordinates fan speeds based on readings. This balanced cooling prevents hotspots and extends battery life.

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A lithium-ion battery pack cooling system with real-time temperature monitoring to prevent overheating and improve safety. The cooling system uses a wind speed sensor inside the cooling tank to measure the actual airflow velocity. This allows calculating the actual heat dissipation efficiency of the cooling module. If a battery cell overheats, the blower power is increased to provide directed cooling airflow. If that fails, the controller reduces the battery discharge rate to lower the pack temperature. The real-time temperature monitoring enables proactive cooling measures before thermal runaway.

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Electric vehicle battery thermal management system to balance heat dissipation across multiple battery packs in a pack arrangement. The system uses partition boxes between adjacent battery packs made of heat-conductive copper alloy with insulation seals. The partition boxes have cavities and end tubes with seals. This allows controlled heat transfer between packs. Temperature sensors in the partition boxes monitor pack heat levels. Valves direct airflow through the boxes to circulate hotter air to cooler packs. This prevents high-temperature packs from heating adjacent packs excessively.

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Battery pack with an improved thermal management system that provides effective cooling and temperature uniformity without adding complexity or parasitic power consumption. The pack has a baffle structure between adjacent battery modules that guides a controlled flow of air through serpentine pathways. This recirculates air between modules for uniform cooling. The baffle structures attach to the connecting members between cells. The pack also has channels, blowers, and fins for recirculating and dissipating the air.

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Smart and dynamic cooling system for vehicle batteries that cools each cell individually and maintains a desired temperature range. The system has a movable cooling fan mounted on sliding channels. It moves over the battery pack to provide targeted cooling to hotter cells. Thermal sensors detect hot spots and guide the fan there. This dynamic cooling prevents uneven temperatures that degrade performance. The fan sweeps over the pack to distribute heat evenly.

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Thermal management system for electric vehicle batteries that uses a refrigerant-based cooling loop and an air duct to cool the batteries without using liquid coolant. The system has a refrigeration path with a compressor, heat exchangers, and throttle, and a battery cooling path with a fan, duct, and battery pack. In refrigeration mode, the refrigerant circulates and cools the battery pack. In natural cooling mode, the fan circulates air through the duct and cools the pack. This eliminates liquid leakage risks compared to liquid cooling.

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Compact heat dissipation device for energy storage power supplies like battery packs and inverters to improve cooling efficiency and allow higher power density. The device separates and cools both components independently using a heat sink, air duct, and air cooling fin. The battery pack and inverter are mounted on opposite sides of the duct, with the fin in the gap between them. Air flows through the duct to cool the inverter, while heat from the battery pack is guided to the fin and duct to be dissipated. This allows simultaneous cooling of both components in a compact layout.

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