Battery Pack Unlocking Guide Slot for Narrow Chassis Space
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Solution Overview
Problem
Existing battery swapping apparatuses face difficulties in unlocking and locking battery packs in the narrow space below the chassis of electric vehicles, particularly for oversized vehicles with larger battery packs, due to the limited space and the need for a liftable unlocking rod.
Innovation Solution
An unlocking device with an unlocking rod, unlocking guide block, and driving mechanism that converts horizontal movement into up-down movement, utilizing an unlocking guide slot and guide mechanisms to facilitate unlocking in a compact structure, including a split design for the driving mechanism and symmetrical unlocking guide slots to ensure stable movement and reduce friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a general battery swapping apparatus is used, then it can lock and unlock battery packs for oversized vehicles, but it cannot enter the narrow space below the vehicle bottom to perform unlocking
Solution Approach 1:
The patent transforms the unlocking rod's movement from vertical lifting to horizontal sliding combined with rotational motion. The unlocking rod slides horizontally along guide slots and rotates to push the locking rod, eliminating the need for vertical lifting space. This dimensional change allows the apparatus to operate in the narrow space below the vehicle bottom while maintaining compatibility with oversized vehicles' battery packs
2Ease of operation
If a liftable unlocking rod is used, then unlocking can be performed in narrow spaces, but the device height increases making it unsuitable for narrow spaces below vehicle bottom
Solution Approach 1:
The patent employs dynamic guide slots with varying orientations. The guide slot transitions from a horizontal section to an inclined section, allowing the unlocking rod to dynamically change its movement direction. During unlocking, the rod slides horizontally then rotates along the inclined slot to push the locking rod, achieving unlocking functionality without requiring vertical lifting space
Solution Approach 2:
The unlocking mechanism transitions from one-dimensional vertical lifting to two-dimensional horizontal sliding combined with rotation. The guide slot's geometric design enables the unlocking rod to move horizontally and then rotate, eliminating the need for vertical space while maintaining unlocking capability
3Device complexity
If the unlocking rod moves directly up and down, then unlocking is simple, but the device requires excessive vertical space below the chassis
Solution Approach 1:
The patent replaces direct vertical movement with horizontal sliding along guide slots combined with rotational motion. The guide slot's geometry transforms the simple up-down motion into a horizontal slide-rotate sequence, maintaining operational simplicity while eliminating vertical space requirements
Solution Approach 2:
The guide slot acts as an intermediary element that mediates between the driving mechanism and the unlocking rod. It translates the driving mechanism's horizontal motion into the unlocking rod's slide-rotate motion, achieving space-efficient unlocking without complicating the overall mechanism
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
The unlocking device effectively reduces the height requirement, allowing efficient unlocking in narrow spaces, supports various vehicle types, and ensures stable, precise unlocking operations while reducing production costs and maintaining structural integrity.
Implementation Method 1
An unlocking guide slot is provided on the unlocking guide block, and the unlocking rod is driven to move up and down by the unlocking guide slot
Implementation Method 2
the unlocking guide block is driven by the driving mechanism to horizontally move in the horizontal guide mechanism
Data Source
AI summary
An unlocking device, a battery swapping apparatus, and a battery pack. The unlocking device is used for locking and unlocking a battery pack in an electric vehicle. The unlocking device comprises: an unlocking rod, an unlocking guide block and a driving mechanism. The actuating mechanism is connected to the unlocking guide block and drives the unlocking guide block to move horizontally. An unlocking guide slot is provided on the unlocking guide block, and the unlocking guide slot drives the unlocking rod to move up and down, so that the unlocking rod pushes a locking and unlocking structure for the electric vehicle and the battery pack to implement locking and unlocking.