Battery Case Slide-Lock Assembly for Anti-Detachment Fixing
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Solution Overview
Problem
Existing battery packs face issues with loose connections due to failed bolts, leading to short-circuits and fires, and require complex drilling processes for assembly, making them unsafe and inconvenient to assemble.
Innovation Solution
A battery case design featuring a slider detachment member and anti-detachment slide slots that securely fix the battery tray bracket, replacing traditional bolts, and includes a pressure relief system to manage thermal runaway and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If bolt-based assembly methods are used, then initial assembly can be achieved, but the assembly process becomes complex requiring drilling and threading operations
Solution Approach 1:
The patent extracts and eliminates the complex drilling and threading operations from the assembly process. By designing the battery tray bracket with a sliding fit structure that integrates directly with the case body's guide ribs and support beam, the method removes the need for separate hole-drilling and thread-cutting steps, simplifying the manufacturing process while maintaining connection strength through spot welding.
Solution Approach 2:
The patent incorporates preliminary action by pre-forming the sliding fit structure and guide ribs during the molding of the case body and battery tray bracket. This preliminary preparation of the mating surfaces and geometric features eliminates the need for subsequent complex assembly operations, allowing for simpler and faster assembly while ensuring proper alignment and connection.
2Productivity
If traditional drilling and rivet nut installation are used, then secure attachment can be achieved, but the processing steps become numerous and time-consuming
Solution Approach 1:
The patent replaces the multi-step drilling and rivet nut installation process with a simplified sliding fit and spot welding system. The battery tray bracket slides into position using guide ribs for alignment, then is spot-welded to the support beam, eliminating the need for drilling holes, installing rivet nuts, and securing fasteners. This substitution dramatically reduces processing steps and improves assembly efficiency.
Data Source
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AI summary
A battery case is provided and includes: a battery tray bracket; a case body; and a slider detachment member. The case body has a case outer frame and a support beam. The case outer frame defines a battery compartment inside the case outer frame. The case outer frame and/or the support beam defines with an anti-detachment slide slot. The support beam is fixedly connected to the case outer frame. The slider detachment member is slidably arranged in the anti-detachment slide slot. An anti-detachment snap portion of the slider detachment member is configured to constrain and fix the battery tray bracket to the case outer frame and the support beam.