Construction Machine Battery Rack Assembly for Planarity-Safe Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery assemblies in construction machines face issues such as deformation leading to planarity problems and high tensile loads, which can damage the batteries, and the assembly process is inefficient due to mounting batteries one by one on a planar plate.
Innovation Solution
A battery assembly design featuring a rack structure with transverse and longitudinal frames that laterally secure batteries, using side brackets and guide grooves to fasten batteries to longitudinal frames, reducing the risk of damage from planarity imbalances and allowing for efficient assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If batteries are fastened to a planar plate in the height direction, then the assembly process is simple, but the planar plate deforms during welding causing planarity problems and high tensile loads that can damage the batteries
Solution Approach 1:
The patent transitions from vertical fastening (height direction) to lateral fastening (left/right direction) by introducing a rack structure with longitudinal frames. This dimensional change allows batteries to be secured without relying on the planarity of a welded plate, eliminating the root cause of deformation and tensile load issues while maintaining assembly simplicity.
Solution Approach 2:
The patent divides the single planar plate structure into multiple longitudinal frames spaced apart laterally. Each frame independently supports batteries, distributing loads and eliminating the need for a large welded plate. This segmentation approach maintains ease of manufacture while improving reliability by preventing the planarity problems that cause battery damage.
2Reliability
If batteries are mounted one by one on a frame, then the batteries can be securely fastened, but the productivity deteriorates due to the time-consuming assembly process
Solution Approach 1:
The patent combines multiple longitudinal frames into a single integrated rack structure that can accommodate multiple batteries simultaneously. This allows batteries to be mounted in parallel rather than sequentially, significantly improving productivity while maintaining the security of fastening through the rack structure's design.
Solution Approach 2:
The rack structure serves multiple functions: it provides lateral support for multiple batteries, enables simultaneous assembly, and maintains secure fastening. This multi-functionality allows the same structure to achieve both high productivity and reliable fastening without requiring separate systems for each function.
3Reliability
If batteries are laterally fastened to longitudinal frames, then the possibility of battery damage is reduced by preventing load from planarity unbalance, but the device complexity increases due to the rack structure with multiple frames
Solution Approach 1:
The rack structure is segmented into standardized longitudinal frames that can be independently manufactured and then assembled. This modular approach reduces overall complexity by breaking down the complex rack structure into simpler, repeatable units that are easier to manufacture and maintain.
Data Source
AI summary
An aspect of the present disclosure provides a battery assembly of a construction machine including a first rack structure including a plurality of first transverse frames which are fixed to a frame of an upper swing structure of the construction machine, and disposed to be spaced apart from each other in a forward/rearward direction of the construction machine, and a plurality of first longitudinal frames which connect the plurality of first transverse frames to each other, and are disposed to be spaced apart from each other in a leftward/rightward direction of the construction machine, and first batteries mounted between sequential pairs of the first longitudinal frames, respectively, wherein opposite sides of the first batteries are fastened to the first longitudinal frames.