Saddle-Mounted Battery Box Structure for Stable Quick Swapping
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Solution Overview
Problem
Existing battery solutions for electric vehicles face issues of high center of gravity, unreliable installation, and difficult replacement, particularly in heavy-duty vehicles, leading to instability and safety concerns.
Innovation Solution
A hoisting carrier vehicle with a battery box shaped like an inverted concave font, mounted on the longitudinal beam via a locking device, and equipped with an inclining prevention device to stabilize the battery and facilitate quick replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery box is mounted high on the carrier vehicle to facilitate replacement, then the ease of operation is improved, but the stability deteriorates due to high center of gravity
Solution Approach 1:
The battery box is designed with an inverted concave font cross-section that engages with the longitudinal beam through a saddle-shaped mounting structure. This dimensional configuration allows the battery box to be positioned at an optimal height while maintaining stability through the geometric interlocking form, resolving the contradiction between ease of replacement and vehicle stability.
2Device complexity
If a simple battery box structure is used, then the device complexity is reduced, but the reliability of installation deteriorates
Solution Approach 1:
The battery box structure is divided into modular components including the battery frame, locking device with multiple locking members, and mounting brackets. This segmentation allows for simplified individual parts that assemble into a reliable whole, where each component performs a specific function and can be independently manufactured and replaced.
Solution Approach 2:
The locking device incorporates movable locking members that can transition between locked and unlocked states, providing dynamic security to the battery box installation. This dynamic mechanism ensures reliable installation while maintaining relatively simple structure through the use of movable rather than permanently fixed components.
3Stability of the object's composition
If a complex positioning mechanism is used to stabilize the battery box, then the stability is improved, but the device complexity and cost increase
Solution Approach 1:
The battery box employs an asymmetric inverted concave font cross-section that complements the asymmetric profile of the longitudinal beam. This asymmetric geometric pairing provides inherent stability through shape complementarity, eliminating the need for complex symmetric positioning mechanisms and reducing overall device complexity while maintaining stability.
Data Source
AI summary
Disclosed is a hoisting carrier vehicle of replaceable batteries. The hoisting carrier vehicle includes a battery box whose cross section is in a shape of inverted concave font. The battery box is mounted by a locking device on the longitudinal beam of the carrier vehicle in a way of saddle. The battery box includes a battery and a battery frame. The battery box of the hoisting carrier vehicle in the application adopts an inverted concave font structure and the middle portion of the inverted concave font is connected to the longitudinal beam, which may effectively lower the center of gravity of the battery box. Secondly, an inclining prevention device is provided to prevent the battery box from inclining forward when braking, thereby to effectively increase the stability of the battery box. In addition, the battery box may be replaced quickly through the quick locking and unlocking of the locking device.