Battery Pack Unlocking Assembly for Low-Height Swapping Devices
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Solution Overview
Problem
The difficulty in entering and leaving the vehicle chassis due to the excessive height of the battery swapping device, particularly for electric trucks, is addressed by the unlocking assembly, which includes a first unlocking portion in the battery pack and a second unlocking portion on the battery swapping device, allowing for a reduced overall height and improved adaptability to the vehicle chassis.
Innovation Solution
The unlocking assembly features a first unlocking portion within the battery pack and a second unlocking portion on the battery swapping device, where the second unlocking portion extends vertically to act on the first unlocking portion, reducing the overall height of the battery swapping device and facilitating its entry and exit from under the vehicle chassis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the unlocking portion is made long enough to contact the locking mechanism on the vehicle chassis, then the unlocking function is reliable, but the battery swapping device height increases making it difficult to enter and leave from under the vehicle chassis
Solution Approach 1:
The unlocking portion is divided into two segments: a first unlocking portion arranged in the battery pack and a second unlocking portion arranged on the battery swapping device. The first unlocking portion serves as an extension that transmits the unlocking force from the shorter second unlocking portion to the locking mechanism, resolving the contradiction between reliability and height by distributing the functional requirements across two components.
Solution Approach 2:
The first unlocking portion in the battery pack acts as an intermediary element between the second unlocking portion and the locking mechanism. It receives the pushing force from the second unlocking portion and transmits it to the locking mechanism, enabling the battery swapping device to maintain a lower height while still achieving reliable unlocking through the mediating action of the first unlocking portion.
2Adaptability or versatility
If the battery swapping device height is reduced to fit under the vehicle chassis, then the adaptability to vehicle chassis is improved, but the unlocking portion length is insufficient to contact the locking mechanism
Solution Approach 1:
The unlocking system is segmented into two parts: the second unlocking portion on the battery swapping device and the first unlocking portion in the battery pack. This segmentation allows the battery swapping device to have a reduced height for better adaptability, while the first unlocking portion extends the functional length needed to contact the locking mechanism.
Solution Approach 2:
The solution moves the length extension from the vertical dimension (which would increase device height) to the horizontal dimension within the battery pack. The first unlocking portion extends horizontally or at an angle within the battery pack structure to reach the locking mechanism, thereby maintaining compact vertical height while achieving sufficient contact length.
Data Source
AI summary
An unlocking assembly for unlocking a battery pack (400) in an electric vehicle is disclosed. The electric vehicle is provided with a locking mechanism (200), and the battery pack (400) is locked and connected to the electric vehicle by means of the locking mechanism (200). The unlocking assembly comprises: a first unlocking portion (100) arranged in the battery pack (400) and configured to drive the locking mechanism (200) to move to an unlocking position to unlock the battery pack (400); and a second unlocking portion (300) arranged on a battery swapping device (10) and configured to move the first unlocking portion (100) that is located at an initial position in the battery pack (400) to an extended position in a vertical direction to unlock the battery pack (400).