Battery Pack Cooling Valve Protection for Transport Damage
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Solution Overview
Problem
The connection valve in battery packs, used to connect the liquid cooling plate to an external cooling cabinet, is prone to cracking or breaking due to external forces during production and transportation, leading to abnormal use of the battery pack.
Innovation Solution
A protection structure is detachably provided in the battery pack to cover the connection valve, preventing it from being damaged by external forces. This structure includes a first protection member and a second protection member that can be assembled and disassembled to expose the connection valve when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the connection valve is exposed for easy connection to cooling cabinet, then ease of operation is improved, but reliability deteriorates due to cracking or breaking from external forces
Solution Approach 1:
The connection valve assembly is segmented into a protected state (valve covered by protection plate) and an operational state (valve exposed). The protection plate can be detached to expose the connection valve when connection is needed, and reattached when protection is needed, allowing the system to switch between reliability and ease of operation modes.
Solution Approach 2:
The protection plate is pre-installed on the connection valve before the battery pack is put into service. This preliminary protective action prevents external forces from damaging the connection valve during transportation and storage, ensuring reliability before the ease of operation requirement arises.
2Reliability
If the connection valve is protected during transportation, then reliability is improved, but ease of operation deteriorates due to restricted access
Solution Approach 1:
The protection plate is designed to be detachable rather than fixed, making the protective structure dynamic. The protection plate can be attached when protection is needed (during transportation) and detached when operation is needed (during connection to cooling cabinet), allowing the system to adapt between reliability and ease of operation requirements.
Solution Approach 2:
The protection plate is pre-installed on the connection valve before the battery pack is put into service. This preliminary protective action prevents external forces from damaging the connection valve during transportation and storage, ensuring reliability before the ease of operation requirement arises.
3Reliability
If a fixed protection structure is used for the connection valve, then reliability is improved, but device complexity increases
Solution Approach 1:
The protection function is extracted as a separate detachable protection plate rather than being integrated into the battery pack housing. This allows the protection structure to be independently designed and attached only when needed, reducing the overall device complexity while maintaining reliability during transportation and storage.
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 protection structure effectively prevents the connection valve from being cracked or broken due to external forces, ensuring the normal operation and longevity of the battery pack, especially during handling and transportation.
Implementation Method 1
The liquid cooling plate is configured for cooling the battery module
Implementation Method 2
The liquid cooling method is to arrange a liquid cooling plate in the battery pack, and connect the liquid cooling plate to an external cooling cabinet using a connection valve
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Disclosed are a battery pack (100) and an energy storage device. The battery pack includes a box (11, 12), a battery module (20), a liquid cooling plate (30), a connection valve (40), a liquid supply pipe (50) and a protection structure (60). The box is provided with an accommodation cavity (10a) and a mounting hole communicating with the accommodation cavity. The battery module is provided in the accommodation cavity. The liquid cooling plate is provided in the accommodation cavity and configured for cooling the battery module. The connection valve is provided in the mounting hole, and one end of the connection valve located outside the accommodation cavity is configured for connecting to a cooling cabinet. The liquid supply pipe is communicated with the liquid cooling plate and one end of the connection valve facing the accommodation cavity. The protection structure is detachably provided in the box, is located outside the accommodation cavity, and covers the connection valve.