Integrated Electric Assembly with Shared Cooling Cavity
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Solution Overview
Problem
Existing vehicle electric assemblies have a bulky and inefficient structure, leading to high weight, increased costs, and reduced endurance capabilities due to insufficient compactness, complex mounting, and inadequate cooling.
Innovation Solution
The proposed electric assembly integrates a motor and transmission within a shared box assembly with a mounting plate that divides the space into motor and transmission holding cavities, incorporating a cooling device to cool both components, and a controller mounted outside the box assembly for improved compactness and cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If motor assembly and transmission assembly are individually disposed and connected through bolts with box assemblies at connection locations, then the structure is simple and easy to manufacture, but the wall thicknesses are large, space is wasted, components are bulky, mass is large, and endurance capability is reduced
Solution Approach 1:
The patent merges the motor assembly and transmission assembly into a single integrated electric assembly. The motor holding cavity and transmission holding cavity are formed within the same box assembly, eliminating the need for separate box assemblies and bolt connections. This integration reduces the number of components, decreases wall thickness at connection locations, and reduces overall mass while maintaining structural integrity.
2Device complexity
If motor assembly and transmission assembly are individually disposed and connected through bolts, then the structure is simple, but there are many and bulky components, the structure is insufficiently compact, and mounting and maintenance are difficult
Solution Approach 1:
By integrating the motor and transmission into a single box assembly with unified cavities, the patent reduces the number of separate components and connection points. This makes the overall structure more compact while simplifying mounting procedures and maintenance operations, as there are fewer separate assemblies to handle and align.
Solution Approach 2:
The box assembly is segmented into distinct motor holding cavity and transmission holding cavity regions, allowing the motor and transmission to be positioned optimally within the integrated structure. This segmentation enables compact arrangement while maintaining ease of access for mounting and maintenance operations.
3Ease of manufacture
If motor assembly and transmission assembly are individually disposed, then each assembly can be manufactured independently, but the loss is high and costs are relatively high
Solution Approach 1:
The integrated electric assembly reduces energy loss by eliminating gaps and misalignments between separately connected motor and transmission assemblies. The direct integration improves power transmission efficiency and reduces mechanical losses, while the reduced component count also lowers manufacturing costs despite requiring integrated manufacturing.
4Device complexity
If traditional cooling methods are used for motor and transmission, then the cooling system is simple, but the cooling effect is insufficient and the structure is not compact
Solution Approach 1:
The patent integrates the cooling device within the box assembly, combining the cooling function with the structural housing. The cooling device is disposed in the motor holding cavity and configured to cool both the motor and transmission, eliminating the need for separate cooling systems and improving cooling efficiency through close proximity to both heat-generating components.
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
This design results in a more compact, lightweight, and cost-effective electric assembly with enhanced cooling performance, facilitating easier assembly and maintenance while improving the vehicle's endurance and reliability.
Implementation Method 1
a cooling device, where the cooling device is disposed in the motor holding cavity and cools the box assembly
Data Source
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AI summary
This application discloses an electric assembly and a vehicle having the same. The electric assembly includes: a box assembly, where an mounting plate is disposed in the box assembly, and the mounting plate divides a space within the box assembly into a motor holding cavity and a transmission holding cavity; a motor, disposed in the motor holding cavity; a transmission, disposed in the transmission holding cavity, where the motor is power-coupled to the transmission; and a cooling device, disposed in the motor holding cavity and cooling the box assembly.