Coolant Drainage Ramp for Battery Pipeline Leak Isolation
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Solution Overview
Problem
Coolant leakage in electrical energy storage devices for motor vehicles can cause short circuits due to the conductive nature of the coolant, particularly affecting high-voltage components.
Innovation Solution
A coolant discharger with a drainage ramp is integrated into the pipeline network to divert leaking coolant away from voltage-carrying components, utilizing a preassembled assembly with a sloping discharge portion and a wall portion to direct the coolant to a safe region within the storage housing, preventing contact with high-voltage leads and terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a coolant-carrying pipeline network is used for cooling voltage-carrying components, then cooling efficiency is improved, but the risk of short circuits due to coolant leakage increases
Solution Approach 1:
The drainage ramp acts as an intermediary element between the pipeline and the voltage-carrying components. It provides a controlled path for coolant to flow away from sensitive components, mediating between the cooling function and the risk of electrical short circuits.
Solution Approach 2:
The invention converts the harmful effect of coolant leakage into a beneficial outcome by directing the leaking coolant onto the drainage ramp, which guides it away from voltage-carrying components. The leakage that would normally cause short circuits is now redirected to serve as a warning signal while preventing damage.
2Area of stationary object
If pipeline connections are made at multiple levels, then cooling coverage is improved, but the number of susceptible interfaces increases
Solution Approach 1:
The drainage system is segmented to address specific pipeline portions at different levels. Each drainage ramp is designed for a specific pipeline connection, allowing targeted protection without requiring a complete system redesign. This segmentation enables localized solutions for multi-level cooling arrangements.
3Reliability
If a drainage ramp is added to the pipeline network, then protection against short circuits is improved, but device complexity increases
Solution Approach 1:
The drainage ramp is merged with the existing pipeline structure. The ramp integrates with the pipeline connection geometry, utilizing the same space and mounting points. This merging approach adds protection functionality without requiring completely separate drainage infrastructure.
Solution Approach 2:
The drainage ramp is designed to be self-aligning and self-installing on the pipeline portion. The geometric design of the ramp allows it to automatically position itself relative to the pipeline, reducing the need for complex adjustment mechanisms or additional fastening components.
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
Effectively prevents faults and short circuits by redirecting leaking coolant away from sensitive components, ensuring the safety and reliability of the electrical energy storage device.
Implementation Method 1
The at least one drainage ramp has a discharge portion (15), sloping obliquely downward, for arrangement beneath the at least one pipeline portion (12) susceptible to coolant leakage
Data Source
AI summary
A coolant discharger for a coolant-carrying pipeline network of an electrical energy storage device has at least one drainage ramp configured to be arranged on a pipeline portion of the pipeline network that is susceptible to a coolant leakage, the drainage ramp is configured to discharge a coolant leaking out from the pipeline portion in the event of a coolant leakage and to divert it away from voltage-carrying components of the electrical energy storage device.