Battery Pack Lock Assembly With Secondary Electromagnetic Retention
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Solution Overview
Problem
Existing battery pack lock mechanisms in electric vehicles are prone to failure, leading to loose or fallen battery packs due to lack of protection and inefficient space usage, with most structures occupying large space and lacking a reliable locking mechanism.
Innovation Solution
A lock mechanism with a movable lock assembly that prevents the lock shaft from exiting the cavity, utilizing a power pin and electromagnetic induction element to control the lock pin's extension and retraction, reducing space requirements and enhancing reliability through a secondary lock mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a primary lock mechanism with lock base and lock bolt is used, then the locking function is achieved, but the space occupation in the lock base increases and reliability decreases
Solution Approach 1:
The lock mechanism is divided into two independent parts: a primary lock mechanism (lock base and lock bolt) and a secondary lock mechanism (lock assembly with lock pin). Each part performs a specific locking function, and they work together to provide reliable locking while distributing space requirements across separate components rather than concentrating all structures in one lock base.
Solution Approach 2:
The secondary lock mechanism acts as a protective intermediary that safeguards the primary lock mechanism. The lock assembly with movable lock pin prevents external forces from directly impacting the primary lock structures, thereby enhancing reliability while the lock pin can be positioned in a cavity to minimize space occupation.
2Ease of operation
If most lock bolt structures are located in the lock base, then the locking function is achieved, but the space requirement for the lock base increases
Solution Approach 1:
The locking structures are segmented between two separate mechanisms. The primary lock mechanism retains essential locking structures in the lock base, while the secondary lock mechanism places its lock pin in a cavity, distributing spatial requirements and reducing the volume burden on the lock base.
Solution Approach 2:
The lock pin of the secondary lock mechanism is positioned in a cavity (a different spatial dimension) rather than occupying the main lock base volume. This dimensional arrangement allows the locking function to be achieved while minimizing the space requirement of the lock base.
3Device complexity
If a simple primary lock mechanism is used, then the device complexity is low, but the reliability decreases due to lack of protection mechanism
Solution Approach 1:
The lock system is segmented into two independent mechanisms: a primary lock mechanism for basic locking function and a secondary lock mechanism for protection. This segmentation adds reliability through functional redundancy while keeping each individual mechanism relatively simple in structure.
Solution Approach 2:
The secondary lock mechanism provides beforehand protection for the primary lock mechanism. The lock assembly and lock pin are positioned to prevent external forces from damaging the primary lock structures before failure can occur, ensuring reliability without requiring complex protective structures.
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 solution effectively reduces space occupation and improves locking reliability, preventing battery pack loosening or falling by using a compact and efficient lock assembly with electromagnetic control, enhancing the stability of the battery pack locking system.
Implementation Method 1
a first electromagnetic induction element, the first electromagnetic induction element is provided on the power pin, the first electromagnetic induction element is used for driving the power pin to apply an acting force to the lock pin
Data Source
AI summary
Provided is a lock mechanism, wherein the lock mechanism includes a lock base, the lock base is provided with an opening and a cavity extending from the opening, the opening is used for the lock shaft mounted to the battery pack to enter the cavity, the lock mechanism further includes: a lock assembly, the lock assembly is connected to one side of the lock base opposite the lock shaft, the lock assembly is moveable relative to the lock base, and the side of the lock base opposite the lock shaft extends into the cavity or exits the cavity; wherein, the lock assembly is capable of preventing the lock shaft from exiting the cavity from the opening when the lock assembly extends into the cavity; the lock assembly is capable of allowing the lock shaft to exit the cavity from the opening when the lock assembly exits the cavity.