A THERMAL MANAGEMENT SYSTEM

Abstract

This invention relates to a thermal management system (1) that enables the stabilization of cell temperatures in electric vehicle battery packs, preventing overheating or overcooling and minimizing inter-cell thermal differences.

Description

1 TARIFF A THERMAL MANAGEMENT SYSTEM Technical Area 5 This invention enables the stabilization of cell temperatures in electric vehicle battery packs, preventing overheating or overcooling and maintaining thermal differences between cells It is related to a thermal management system that ensures minimization. Previous Technique Lithium-ion battery packs used in electric vehicles, charging and discharging. During processing, the cells are exposed to intense heat generation. This situation... temperature imbalance, performance degradation, and thermal runaway in the long term. This can lead to serious safety risks such as thermal runaway. current thermal management methods such as cooling, liquid cooling, and phase change materials. The solutions either offer inadequate cooling performance or are static and localized. Because they offer no cooling, they cause unstable temperatures inside the battery pack. distributions are emerging. This situation shortens the cell lifespan while at the same time 20 This reduces the overall efficiency of the battery system. On the other hand, cold weather... Under these conditions, the battery cells cannot quickly reach their operating temperature, This causes vehicles to perform poorly at low temperatures. In this context, the solutions currently in use involve heat transfer at the cell level. Inability to control dynamically; battery internal temperature differences of 25 inability to prevent; inability to ensure proactive rather than reactive temperature management; cold insufficient heating capacity under these conditions and the system's exposure to external environmental influences This results in problems such as uncontrolled heat loss. Therefore, today we have 30 countries that will overcome the problems mentioned above. A smart ferrofluid circulation system that can be guided by a magnetic field, nanoheaters, 2 Fully integrated with instantaneous temperature sensors and Battery Management System (BMS). A solution that operates using electromagnet control is needed. Chinese patent CN208723050U, which is included in the known state of the art. In the document, using magnetism for cooling electric vehicle batteries is discussed in point 5. The system in question is structured around magnetism. A temperature control system based on cooling technology, battery pack heat management system and electric vehicle battery pack heat management system It provides heat distribution. The enclosure, with one side being the enclosure chamber, allows heat flow. It is paired via a pipe, and the other side is connected by a cold flow pipe 10 By assembling them, the circuit is completed and the heat distribution tank body, heat distribution It is connected to the bag structure with its casing. Outside of this structure, in a row, on top There are numerous fins positioned on top, and on the inner surface. The system includes an electromagnet and a heating pipeline. There is also a storage container and bag. The structure is enclosed in an insulated box on the outside and a microchannel partition box on the inside. 15 Microchannel baffle box and bag structure, via microchannel baffle It consists of numerous separate storage compartments. The front of the box and on the inside of their back walls, numerous connections in horizontal and vertical directions. There are numerous interconnected lines within the microchannel compartment. A distribution manifold is located, and these manifolds are connected to the fluid via connecting lines. They are combined in this way. Magnetic flux carrier coolant heat distribution during the flow of water through its casing, the cooling material reacts with magnetism. The temperature is lowered by utilizing the caloric effect of the magnet it creates, and In this way, magnetic flux is carried along the cold flow pipe by the carrier coolant. The liquid's temperature is effectively reduced. 25 The Chinese document in question describes a battery thermal management system that operates using magnetism. The system has been explained. In this system, the magnetocaloric effect is utilized. Ferrofluid-based cooling is implemented, with the liquid inside a heat distribution box. It is heated or cooled by electromagnets. However, in this system, 30 Direction control is not performed using a magnetic field; fluid flow is controlled dynamically. 3 Not adjustable; real-time, targeted temperature management via BMS integration. are not provided, nano heaters or local heating solutions are not available and A passive and fixed-loop structure is presented. Brief Description of the Invention 5 The aim of this invention is to regulate cell temperatures in lithium-ion battery packs. balancing, preventing overheating or overcooling, and intercellular balance Heat transfer and orientation to minimize thermal differences. The goal is to implement a thermal management system that enables this. 10 Another purpose of the invention is to direct magnetic fields using electromagnets. the fluid circulates over the battery surfaces, removing heat from targeted areas, or A dynamic and adaptive thermal system that provides temperature control by enabling its transmission. The goal is to implement a management system. 15 Another purpose of the invention is to use battery power based on instantaneous data received from temperature sensors. controlled via a building management system (BMS), and the flow rate, direction and of the fluid The goal is to implement a thermal management system where the temperature is automatically adjusted. Another purpose of the invention is to utilize batteries in the automotive industry, particularly in electric vehicles. systems, renewable energy storage systems, aviation, high high-performance electronic devices and industrial power systems such as temperature a thermal management system that can be used in areas where stability is critical to accomplish. 25 Detailed Description of the Invention A "Thermal Management System" was developed to achieve the purpose of this invention. shown in the attached figure; this figure is 30 4 Figure 1. Schematic view of a thermal management system, which is the subject of the invention. The parts shown in the figure are individually numbered, and these numbers correspond to... The equivalents are given below: 1. System 2. Sensor 3. Electromagnet 4. Heater 5. Pump 10 6. Battery management system The temperatures of battery cells in electric vehicle battery packs balancing, preventing overheating or overcooling, and protecting cells The invention is a thermal 15 that enables the minimization of thermal differences between them. management system (1), -Real-time temperature of each battery cell in a battery module. multiple sensors configured to collect data (2), - among the battery modules, which can be oriented by a magnetic field. located in channels through which fluids pass and where magnetic fluid flows in the channels 20 multiple electromagnets (3) that enable its orientation, -to heat the magnetic fluid and enable the cells to be heated in cold weather. at least one heater configured to (4), - at least one pump (5) that enables the circulation of magnetic fluid in the channels, -coordinates of battery cells and electromagnets in the battery module 25 keeping records, with temperature sensors (2), electromagnet (3) and heater (4) communicate, temperature through communication established with the temperature sensor (2) collecting data, exceeding predetermined temperature values in this case by activating the electromagnets (3) of the relevant battery cells By directing the magnetic fluid to the relevant battery cells with the pump (5), the temperature is 30 lowering the values, dropping below the predetermined temperature values In this case, the heaters (4) are triggered and the magnetic fluid is sent to the relevant cells. to provide guidance and to create an ideal working environment It includes at least one configured battery management system (6). The system in question (1) contains multiple sensors (2) and the battery 5 The module displays real-time temperature information for each battery cell. to measure and transmit to the battery management system (6) This allows for real-time monitoring of battery cells. Instantaneous cooling and heating actions are taken by monitoring temperature data. It can be obtained. 10 In the system that is the subject of the invention, the electromagnets (1) in the magnetic fluid (3) Active components used to determine direction and operation of battery management It is controlled via the system (6). The electromagnets (3) are in the circuit. the time it will enter and where the fluid will be directed for cooling and heating purposes 15 It is controlled via the battery management system (6). The invention is preferred In the application made, electromagnets (3) use ferrofluid as the magnetic fluid. It circulates and directs heat through channels to remove it from surfaces. In this way, heat from the battery cells is quickly transferred to other areas. It is portable. 20 The preferred application of the invention is the electromagnets (3) battery module. It enables the circulation of magnetic fluid in channels extending along its length. through specially designed microchannels under or around the cells is being placed. 25 The heater (4) in the system subject to the invention is a nano heater and battery management (1) The system is controlled by (6), magnetic in cold weather conditions It heats the fluid instantaneously and increases the temperature level of the battery cells. It increases. The fluid is suspended inside the heater (4). 30 6 The invention includes the pump (5) battery management system (6) in the system (1) It is controlled by microchannels within the battery module. It circulates magnetic fluid in a closed loop. The battery management system (6) and sensors (2) 5 in the system (1) are the subject of the invention. by collecting data from it, to monitor temperature values ​​in real time, If the temperature rises above a predetermined value, the cell to determine the coordinates and to install the pump to cool the identified cell. (5) and triggering the electromagnets (3) located at the coordinate, magnetic fluid It is configured to route within the channels. Battery management 10 the system (6) if the temperature falls below a predetermined value Heating the magnetic fluid by triggering the heater (4), pump (5) and heated magnetic fluid between channels by triggering electromagnets (3) It is structured to circulate heat. This allows the temperature in the battery cells to decrease. magnetic 15 through electromagnets (3) in case of increase or decrease The fluid is directed through channels in the battery module. Battery management system (6) coordinates of the battery cell where temperature increase or decrease occurs depending on the electromagnets (3) it will trigger and transfer heat. It is structured to direct the fluid towards the relevant cell. In this way... Magnetic fluid directed to the relevant cell removes heat from the battery cell by 20 by providing passive heat dissipation or keeping the relevant battery cell at the ideal temperature. It raises the level of the battery management system (6) thermal protection of the battery cells. For its management, the electromagnet, (3) heater (4) and pump (5) are constantly checked. It is structured to do so. The battery management system (6) included in the system (1) which is the subject of the invention heating or heating of magnetic fluid by controlling electromagnets (3) It is structured to ensure that they are transported to the necessary regions. On the other hand, In environments where the temperature drops, the battery management system (6) activates the heater (4) It ensures that the battery cells operate at the ideal temperature. Battery management 30 The system (6) monitors the temperature in real time via sensors (2) and 7 to stop heat transfer when the temperature reaches the desired values It is being structured. The invention system (1) is located inside a thermally insulated battery pack. 5 magnetic through electromagnets (3) between the battery modules it receives Heat transfer at high and low temperatures by directing the fluid. It performs and provides an ideal working environment. Thermal protection of battery modules. Thanks to its management, the heat generated in electric vehicle batteries is reduced. imbalances are eliminated, inter-cell temperature differences are reduced, 10 The risk of thermal runaway is reduced, and batteries are able to operate quickly in cold weather conditions. This ensures that the operating temperature is reached. In the system subject to the invention (1), magnetic fluid is primarily directed to the desired regions because it is delivered and the temperature of each battery cell is monitored individually, only 15 Intervention is carried out in the areas where it is needed. Nano located in the system (1) Thanks to the heater (4), the magnetic fluid is not only in hot weather but also in cold weather. It ensures the creation of an ideal working environment in these weather conditions. Around these basic concepts, the subject of the invention is “A Thermal Management System (1)” and 20 It is possible to develop a wide variety of related applications, and the invention is presented here. It cannot be limited to the examples given; it is essentially as stated in the claims.

Claims

8 REQUESTS 1. The temperatures of battery cells in electric vehicle battery packs balancing, preventing overheating or overcooling, and protecting cells 5 that minimizes the thermal differences between them -Real-time temperature of each battery cell in a battery module. multiple sensors configured to collect data (2), - among the battery modules, which can be oriented by a magnetic field. located in channels through which fluids pass and magnetic fluid in the channels multiple electromagnets (3) that enable its orientation, 10 -to heat the magnetic fluid and enable the cells to be heated in cold weather. at least one heater configured to (4), - at least one pump (5) that enables the circulation of magnetic fluid in the channels, -the coordinates of the battery cells and electromagnets in the battery module keeping records, temperature sensors (2), electromagnet (3) and heater (4) 15 communicate, temperature through communication established with the temperature sensor (2) collecting data, exceeding predetermined temperature values in this case by activating the electromagnets (3) of the relevant battery cells By directing the magnetic fluid to the relevant battery cells with the pump (5), the temperature lowering the values, falling below the predetermined temperature values ​​20 In this case, the heaters (4) are triggered and the magnetic fluid is sent to the relevant cells. to provide guidance and to create an ideal working environment a battery management system (6) characterized by having at least one configured battery management system thermal management system (1).

2. Multiple batteries, each located in the battery module. measuring the cell's temperature information in real time and battery management characterized by sensors (2) configured to transmit to the system (6) A thermal management system as in Claim 1 (1). 9 3. Active components used to determine the direction of magnetic fluid. its operation is controlled via the battery management system (6) a thermal as in Claim 1 or 2 characterized by electromagnets (3). management system (1).

4. When it will be activated and where the fluid will be used for cooling and heating purposes. the direction of which is controlled via the battery management system (6) any of the above claims characterized by electromagnets (3) a thermal management system like one (1).

5. Magnetic fluid, which is ferrofluid, is used in channels to remove heat from surfaces. The above is characterized by electromagnets (3) that circulate and direct. a thermal management system like any of the requirements (1).

6. Magnetic fluid flows through channels extending along the battery module 15 It allows circulation and is specially designed to be placed under or around the cells. characterized by electromagnets placed through microchannels (3) a thermal management system as in any of the above requirements (1).

7. Nano heater, controlled by battery management system (6), In cold weather conditions, it instantaneously heats the magnetic fluid and the battery The above is characterized by a heater (4) which increases the temperature level of the cells. a thermal management system like any of the requirements (1).

8. The battery is controlled by the battery management system (6) The magnetic fluid flows in a closed loop within the microchannels of the module. any of the above requirements characterized by a circulating pump (5) a thermal management system like one (1). 30 9. By collecting data through sensors (2), the actual temperature values ​​are obtained. to monitor the situation in a timely manner, if the temperature rises above a predetermined value. In this case, determining the coordinates of the cell and the detected cell pump (5) and electromagnets (3) located in the coordinate for cooling 5 to direct the magnetic fluid within the channels by triggering the above is characterized by the configured battery management system (6) a thermal management system like any of the requirements (1).

10. If the temperature falls below a predetermined value Heating the magnetic fluid by triggering the heater (4), pump (5) and 10 heated magnetic fluid between channels by triggering electromagnets (3) characterized by a battery management system (6) configured for circulating a thermal management system as in any of the above requirements (1).

11. Coordinates of the battery cell experiencing temperature increase or decrease. depending on the electromagnets (3) it will trigger and transfer heat. Battery management system configured to direct fluid to the relevant cell. as in any of the above requests characterized by the system (6). a thermal management system (1). 20 12. Continuous electromagnet for thermal management of battery cells, (3) battery management configured to control the heater (4) and pump (5) as in any of the above requests characterized by the system (6). a thermal management system (1). 25 13. Controlling the electromagnets (3) to adjust the temperature of the magnetic fluid. a battery designed to transport heat to the areas that need to be heated any of the above requirements characterized by the management system (6) a thermal management system like one (1). 30 11 14. To monitor temperature in real time via sensors (2) and to stop heat transfer when the temperature reaches the desired values is being configured. Battery management system (6)

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