Stacked Power Distribution Layout for Compact Vehicle Integration
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Solution Overview
Problem
Existing power distribution devices in transportation devices have low product integration, large overall dimension structure, and high cost due to independent components spliced together with simple methods, leading to low internal space utilization and increased costs.
Innovation Solution
A power distribution device with a housing containing a pre-charging circuit module and a main positive circuit module stacked in an up-down direction, utilizing a semi-finished relay core and eliminating fastening screws, and incorporating a snap-fit and potting structure for efficient assembly and high space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If components are designed as separate independent products and spliced together with simple methods, then ease of manufacture and maintenance is improved, but product integration is low and overall dimension structure becomes large
Solution Approach 1:
The patent integrates the pre-charging circuit module and main circuit module into a single power distribution device housing, merging previously separate components into one compact unit. This reduces the overall volume while maintaining ease of manufacture through modular internal design.
Solution Approach 2:
The patent employs a nested arrangement where the pre-charging circuit module and main circuit module are stacked vertically within the housing, with components arranged in layers. This nesting approach maximizes space utilization and minimizes the overall device volume.
2Ease of repair
If components are designed as separate independent products, then ease of maintenance is improved, but product cost increases
Solution Approach 1:
The patent divides the power distribution device into distinct functional modules (pre-charging circuit module and main circuit module) that can be independently manufactured and maintained. This segmentation reduces overall product cost while preserving ease of maintenance through modular replacement capabilities.
3Ease of manufacture
If components are tiled arrangement, then ease of manufacture is improved, but internal space utilization rate is low
Solution Approach 1:
The patent transitions from a horizontal tiling arrangement to a vertical stacking arrangement, utilizing the vertical dimension within the housing. This dimensional change significantly improves internal space utilization while maintaining ease of manufacture through standardized vertical mounting interfaces.
Data Source
AI summary
A power distribution device and a transportation device having the power distribution device are provided. The power distribution device includes a housing, a pre-charging circuit module, and a main positive circuit module. The housing has a mounting cavity. The pre-charging circuit module is configured to pre-charge a capacitor element in an electrical appliance, and includes a pre-charging relay. The pre-charging relay is connected with the housing. The main positive circuit module is configured to be closed after the pre-charging circuit module is opened. The main positive circuit module and the pre-charging circuit module are stacked in the mounting cavity in an up-down direction. The main positive circuit module includes a fuse and a main relay core. The main relay core is connected with the housing.