Battery Module Hook Fixation for Vibration Resistance
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Solution Overview
Problem
The existing energy storage devices face challenges in securely fixing battery modules to battery racks, particularly when installed in buildings or containers, as the rear surface cannot be bolted due to structural constraints, leading to potential damage from vibrations.
Innovation Solution
An energy storage device with a hook structure is integrated into the module guide of the battery rack, allowing the rear surface of the battery module to be fixed using a hook unit that elastically deforms to apply downward pressure, ensuring a reinforced fixing force while enabling easy coupling and separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rear surface of the battery module is simply placed on the module guide without fixing structure, then the installation process is simple and fast, but the fixing force is insufficient and the battery module moves due to vibration
Solution Approach 1:
The module guide is designed with an integrated hook structure that automatically engages with the battery module during installation. The hook structure includes a hook body with a hook groove that self-aligns and secures the battery module without requiring additional fixing operations, making the simple installation process while ensuring reliable fixation
Solution Approach 2:
The fixing function is segmented into distinct components: the hook body, hook groove, and engaging protrusion. This segmentation allows the hook structure to provide targeted fixation at specific points on the battery module while maintaining the overall simplicity of the installation process
2Device complexity
If the rear surface of the battery module is simply placed on the module guide without fixing structure, then no additional fixing components are needed, but the impact load is concentrated on the front surface fixing portion which may break
Solution Approach 1:
The fixing system is segmented into front surface bolting and rear surface hook fixation, distributing the load-bearing function across multiple points and structures. The hook structure on the module guide provides independent support at the rear, preventing concentration of impact loads on the front surface fixing portion
Solution Approach 2:
The hook structure is designed to engage with the battery module before impact loads are applied during operation. This pre-engagement creates a distributed support system that cushions against future vibrations and impacts, preventing breakthrough failures at the front surface fixing portion
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
This solution enhances the fixing force between the battery module and the rack, dispersing impact and minimizing damage from vibrations, thereby reducing the risk of breakage and maintaining system stability.
Implementation Method 1
the hook unit may be elastically deformed due to an upward force received by the inner wall surface of the hook insert hole at a lower side thereof to apply a downward pressure to the battery module
Data Source
AI summary
An energy storage device includes: a battery rack fixedly installed in a building or a container and having a partitioned space; and a plurality of battery modules installed in the partitioned space of the battery rack, wherein each of the plurality of battery modules is inserted into the battery rack in a sliding manner, wherein a front surface of each of the plurality of battery modules is fixed to the battery rack with a bolt, and wherein a rear surface of each of the plurality of battery modules is fixed to the battery rack with a hook.