Detachable Battery Cold Plate for Charging Thermal Control

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Solution Overview

Problem

Electric vehicles and aircraft face challenges in managing battery thermal behavior during charging, as traditional cold plates are heavy and increase payload, while batteries require optimal temperature conditions for efficiency and charging.

Innovation Solution

A nonintegrated cold plate system that can be attached to batteries during charging, featuring a top and bottom plate with coolant pathways for thermal control, allowing for efficient temperature management and detachment post-charging, thereby reducing payload weight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a traditional integrated cold plate is used for thermal management, then thermal control during charging is achieved, but payload weight increases

Engineering Contradiction:
Improvebattery temperature controlVSAvoidpayload weight
Core Design Contradiction:
TemperatureVSWeight of moving object

Solution Approach 1:

The cold plate system is divided into separate components: the cold plate itself and the thermal management system. The cold plate can be detached after charging, separating the thermal control function from the permanent vehicle structure, thereby reducing payload weight while maintaining thermal control capability when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cold plate transitions from a static integrated component to a dynamic detachable component. It can be attached during charging operations and removed during normal operation, allowing the system to adapt its weight based on operational requirements.

Inventive Principle:
Principle #15Dynamics

2Weight of moving object

If a nonintegrated cold plate is used, then payload weight is reduced, but thermal control efficiency may be compromised

Engineering Contradiction:
Improvepayload weightVSAvoidthermal control effectiveness
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The cold plate is attached to the battery before charging begins, ensuring thermal control is already in place before thermal issues arise. This preliminary positioning ensures immediate thermal management capability when charging starts, maintaining reliability without requiring a permanently integrated system.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The detachable cold plate serves as an intermediary component that temporarily bridges the thermal management system and the battery during charging operations, providing effective thermal control without requiring permanent integration that would increase payload weight.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If cooling is provided during charging, then charging efficiency is enhanced, but device complexity increases

Engineering Contradiction:
Improvecharging efficiencyVSAvoidthermal management system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cold plate integrates multiple functions into a single component: it provides thermal control, structural support during charging, and serves as a mounting interface. This merging reduces the need for separate cooling systems, manifolds, and mounting hardware, thereby reducing overall system complexity while enhancing charging efficiency through integrated thermal management.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system provides efficient thermal control during battery charging, enhancing efficiency and reducing weight, allowing for longer flight durations or increased travel range by minimizing the weight of thermal management systems.

Implementation Method 1

circulating coolant through the nonintegrated cold plate such that the coolant is operable to cool (or condition or heat, as needed) the one or more batteries during charging

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

a pump configured to draw coolant from the reservoir and comprising a supply line and a return line

Methodology Applied
Scientific EffectPumping: Pump

Data Source

PatentUS12115881B2Non-integral battery cold plate
Publication Date: 2024.10.15 TEXTRON INNOVATIONS INC
  • US12115881B2 patent drawing
  • US12115881B2 patent drawing
  • US12115881B2 patent drawing

AI summary

A nonintegral cold plate is described for providing cooling of battery charging. The nonintegrated cold plate can receive and circulate coolant against a surface of a battery or of a vehicle. After charging the nonintegrated cold plate can be removed to save weight on the vehicle's payload.