20240021916. BOX BODY OF POWER BATTERY, POWER BATTERY, ELECTRIC DEVICE, AND TEMPERATURE DIFFERENCE SELF-ADJUSTING COLD PLATE simplified abstract (BYD COMPANY LIMITED)

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BOX BODY OF POWER BATTERY, POWER BATTERY, ELECTRIC DEVICE, AND TEMPERATURE DIFFERENCE SELF-ADJUSTING COLD PLATE

Organization Name

BYD COMPANY LIMITED

Inventor(s)

Jianglong Tang of Shenzhen (CN)

Shu Guo of Shenzhen (CN)

Peng Lu of Shenzhen (CN)

Xin Li of Shenzhen (CN)

BOX BODY OF POWER BATTERY, POWER BATTERY, ELECTRIC DEVICE, AND TEMPERATURE DIFFERENCE SELF-ADJUSTING COLD PLATE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240021916 titled 'BOX BODY OF POWER BATTERY, POWER BATTERY, ELECTRIC DEVICE, AND TEMPERATURE DIFFERENCE SELF-ADJUSTING COLD PLATE

Simplified Explanation

The abstract describes a power battery with a box that includes a tray, a liquid cooling plate, and a cold expansion portion. The tray has an accommodating space for cells, and the liquid cooling plate is connected to the tray at the outer surface. A flow channel is defined by the liquid cooling plate and the outer surface of the tray, through which a cooling liquid flows. The cold expansion portion is arranged in the flow channel and connected to either the tray or the liquid cooling plate. The liquid-passing cross-sectional area of the flow channel is reduced when the cold expansion portion expands.

  • The power battery includes a tray with an accommodating space for cells.
  • A liquid cooling plate is connected to the tray at the outer surface.
  • A flow channel is defined by the liquid cooling plate and the outer surface of the tray.
  • The cold expansion portion is arranged in the flow channel and connected to either the tray or the liquid cooling plate.
  • The liquid-passing cross-sectional area of the flow channel is reduced when the cold expansion portion expands.

Potential Applications:

  • Electric vehicles: This technology can be applied in electric vehicle batteries to improve cooling efficiency and prevent overheating.
  • Renewable energy storage: Power batteries used for storing renewable energy can benefit from enhanced cooling capabilities, ensuring optimal performance and longevity.

Problems Solved:

  • Overheating: The technology addresses the issue of overheating in power batteries by providing an efficient cooling system.
  • Expansion-related damage: The cold expansion portion helps prevent damage caused by expansion during cooling, ensuring the longevity of the battery.

Benefits:

  • Improved cooling efficiency: The liquid cooling plate and flow channel design enhance the cooling capabilities of the power battery, preventing overheating and improving overall performance.
  • Increased lifespan: By addressing overheating and expansion-related damage, the technology helps extend the lifespan of power batteries, reducing the need for frequent replacements.
  • Enhanced safety: Efficient cooling reduces the risk of battery malfunctions and potential safety hazards, making it a safer option for various applications.


Original Abstract Submitted

a power battery has a box. the box includes a tray, a liquid cooling plate, and a cold expansion portion. an accommodating space for accommodating cells is provided in the tray. the liquid cooling plate is connected to the tray at an outer surface of at least one of the top and bottom of the tray. a flow channel through which a cooling liquid flows is defined jointly by the liquid cooling plate and the outer surface of the tray. the cold expansion portion is arranged in the flow channel, and is connected to at least one of the tray and the liquid cooling plate. a liquid-passing cross-sectional area of the flow channel corresponding to an expansion region is reduced when the cold expansion portion expands.