Quick-Release Battery Module Chassis for Collision Isolation

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Solution Overview

Problem

Current battery systems in electric vehicles face complications in repair and maintenance due to the need for complex disassembly of battery packs and susceptibility to damage during collisions, where the fixed battery pack can cause secondary damage to modules or cells.

Innovation Solution

A chassis assembly with multiple mounting positions and a quick-release device controlled by a system, allowing for easy installation and removal of battery modules, along with a voltage electrical connecting assembly for quick plug-in connections, enabling rapid disassembly and reducing damage during collisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the battery pack is fixedly connected to the frame, then the structural stability is improved, but the repair complexity increases and collision damage worsens

Engineering Contradiction:
Improvestructural stabilityVSAvoidrepair complexity
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The battery pack is divided into multiple independent battery modules that can be individually removed from the chassis. Each module can be independently accessed, removed, and replaced without affecting other modules, enabling simplified repair and maintenance while maintaining overall structural stability through the modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection between the battery pack and chassis is made dynamically adjustable through a quick-release device that can transition between locked and unlocked states. This allows the system to provide stable fixed connection during normal operation while enabling rapid disconnection for repair or collision mitigation.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the battery pack is fixedly connected to the frame, then the structural stability is improved, but the collision damage worsens

Engineering Contradiction:
Improvestructural stabilityVSAvoidcollision damage
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The quick-release device enables dynamic adjustment of the battery pack connection state. During collision events, the system can rapidly transition from a fixed connected state to a disconnected state, allowing the battery modules to be separated from the chassis to prevent secondary damage from frame deformation and squeeze forces.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The battery modules can be extracted from the chassis assembly as independent units. In collision scenarios, this extraction capability allows the battery modules to be removed or separated from the deforming chassis structure, eliminating the harmful effect of frame-induced secondary damage to the battery cells.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If the battery pack is assembled as a single integrated unit, then the manufacturing simplicity is improved, but the maintenance efficiency worsens

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidmaintenance efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The battery pack is segmented into multiple standardized modules that can be manufactured independently and then assembled into the complete battery pack. This modular segmentation enables parallel manufacturing processes and simplifies maintenance by allowing individual module replacement rather than complete pack disassembly, thereby improving maintenance efficiency while maintaining manufacturing simplicity through standardized components.

Inventive Principle:
Principle #1Segmentation

4Ease of repair

If the battery module needs to be accessed for repair, then the maintenance capability is improved, but the disassembly time increases

Engineering Contradiction:
Improvemaintenance capabilityVSAvoiddisassembly time
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The quick-release device provides dynamic connection and disconnection capability between the battery modules and chassis. This allows maintenance personnel to rapidly access individual battery modules by simply releasing the quick-release mechanism without time-consuming disassembly of the entire battery pack or chassis, thereby enabling easy repair while minimizing disassembly time.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The quick-release device is pre-configured with release mechanisms that can be activated from the outside or through simple operations. This preliminary preparation of the release mechanism allows for immediate disconnection when maintenance is needed, eliminating the need for sequential disassembly steps and significantly reducing access time to battery modules.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11891119B2Chassis assembly and vehicle
Publication Date: 2024.02.06 EVE POWER CO LTD
  • US11891119B2 patent drawing
  • US11891119B2 patent drawing
  • US11891119B2 patent drawing

AI summary

The present disclosure provides a chassis assembly and a vehicle. The chassis component includes: a chassis provided with a plurality of mounting positions and configured to install a battery module; a quick-release device through which the battery module is installed on the mounting positions, wherein the quick-release device is controlled by a control system; and a voltage electrical connecting assembly electrically connected to the battery module, wherein the voltage electrical connecting assembly is controlled by the control system. The vehicle includes the chassis assembly.