Battery Pack Cavity Cover Structure for Waterproof Replacement Access
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Solution Overview
Problem
Existing autonomous operation devices face issues with water ingress into the battery pack cavity when the cavity cover is in a closed and unlocked state, requiring separate waterproof breathable films and complex assembly processes, leading to high costs and limited component arrangement due to the battery pack's positioning.
Innovation Solution
The device features a chassis with a rotatable cavity cover that prevents water entry in both locked and unlocked states, eliminating the need for waterproof breathable films and simplifying assembly by integrating a socket compatible with various battery pack models, thus reducing costs and improving component arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cavity cover is designed to be openable for battery pack replacement, then the ease of operation is improved, but water ingress risk increases leading to reduced safety
Solution Approach 1:
The cavity cover is divided into an upper cover and a lower cover that can rotate relative to each other. The lower cover remains attached to the chassis while the upper cover rotates open, allowing battery access while maintaining the sealing interface with the chassis. This segmentation enables operational access without compromising the waterproof barrier.
Solution Approach 2:
The sealing ring is pre-installed on the lower cover in a groove structure before assembly. The groove includes a first groove and a second groove that work together to ensure the sealing ring is properly positioned and compressed when the cover closes, preventing water ingress before any operational opening occurs.
2Reliability
If separate waterproof breathable films are added to both cavities for pressure balancing, then the reliability is improved, but the device complexity and cost increase
Solution Approach 1:
The patent removes the requirement for separate waterproof breathable films by redesigning the sealing mechanism. The sealing ring integrated into the lower cover's groove structure provides both waterproofing and pressure balancing functions without needing additional breathable film layers in either cavity.
Solution Approach 2:
The sealing ring serves multiple functions simultaneously: it provides waterproof sealing between the lower cover and chassis, and it enables pressure balancing between cavities through its integrated groove design. This merging of functions eliminates the need for separate waterproof breathable films.
3Manufacturing precision
If the socket is integrated with the battery pack cavity for customized battery packs, then the adaptability is reduced, but the manufacturing precision is improved
Solution Approach 1:
The socket is designed as a universal component that can accommodate different battery pack models and specifications. The socket structure includes adjustable elements and a standardized interface that maintains precise positioning while being compatible with various battery configurations, eliminating the need for custom molds for each battery type.
4Stability of the object's composition
If the battery pack is positioned between driving wheels and universal wheel, then the stability is improved, but the volume of the main cavity is reduced
Solution Approach 1:
The battery pack positioning is optimized to maintain stability through the wheel arrangement while maximizing main cavity volume. The cavity cover rotation mechanism and repositioned socket allow the battery to be positioned in a configuration that preserves front-end stability during operation while creating additional usable space within the main cavity for other components.
Data Source
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AI summary
The present disclosure discloses an autonomous operation device. The autonomous operation device includes a chassis and a cavity cover, where the chassis includes a first cover body and a second cover body, and the first cover body covers the second cover body to jointly form a battery pack cavity; the cavity cover operably opens and closes the battery pack cavity, and the battery pack cavity and the cavity cover are configured such that the cavity cover can prevent water from entering the battery pack cavity in both a closed and locked state and a closed and unlocked state. The present disclosure can prevent water from entering the battery pack cavity when the cavity cover is in the closed and unlocked state, improving the use safety of a battery pack.