Dual compressor for vehicle
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Solution Overview
Problem
Dual compressors for vehicles face challenges in independent control and increased power consumption, manufacturing cost, and weight due to the use of multiple electric compressors and inverters, which complicates space utilization and affects vehicle performance and efficiency.
Innovation Solution
A dual compressor system with two compressing units integrally configured and independently controlled by a single inverter, allowing for differential voltage input and motor control, and utilizing refrigerant passages to cool the inverter, thereby optimizing power usage and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two electric compressors are applied to achieve multiple stages of refrigerant cycle, then cooling or heating performance is improved, but power consumption of the battery is increased
Solution Approach 1:
The patent combines two compressors into a single integrated dual compressor unit that shares common components such as the housing, refrigerant passages, and inverter system. This merging approach maintains the performance benefits of having two compressors while reducing overall power consumption by eliminating redundant components and optimizing the shared inverter's power distribution.
Solution Approach 2:
The single inverter in the dual compressor system is designed to control both compressors, making it a multi-functional component. The inverter can independently control each compressor's motor, allowing flexible power management where the same inverter serves multiple functions, thereby reducing total power consumption compared to having separate inverters for each compressor.
2Productivity
If two electric compressors are applied to achieve multiple stages of refrigerant cycle, then cooling or heating performance is improved, but manufacturing cost is increased
Solution Approach 1:
The dual compressor design merges two compressor units into a single integrated structure with shared housing, refrigerant passages, and control systems. This consolidation reduces the number of separate manufacturing processes, assembly steps, and components required, thereby lowering overall manufacturing cost while maintaining the dual-compressor performance capability.
3Productivity
If two electric compressors are applied to achieve multiple stages of refrigerant cycle, then cooling or heating performance is improved, but weight is increased
Solution Approach 1:
The patent integrates two compressors into a single weight-optimized unit by sharing common structural components, refrigerant passages, and the inverter system. This merging significantly reduces the total weight compared to having two separate compressor assemblies, while still delivering the enhanced cooling and heating performance of a dual-compressor configuration.
4Productivity
If two electric compressors are applied to achieve multiple stages of refrigerant cycle, then cooling or heating performance is improved, but space utilization is affected
Solution Approach 1:
The dual compressor system merges two compressor units into a single compact integrated assembly that occupies less mounting space than two separate compressors. The shared housing, refrigerant passages, and inverter system are arranged in a space-optimized configuration, improving space utilization while maintaining dual-compressor performance capabilities.
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 configuration enhances usage efficiency, minimizes battery power consumption, increases vehicle travel distance, reduces manufacturing costs and weight, and improves space utilization while efficiently cooling the inverter, leading to improved durability and lifespan.
Implementation Method 1
an inverter electrically connected to the first and second motors, respectively, to drive the first and second motors by converting DC power supplied from a vehicle into AC power
Implementation Method 2
utilizing refrigerant passages to cool the inverter
Implementation Method 3
a first compressing unit connected to the first shaft to compress a refrigerant according to the operation of the first motor, a second compressing unit connected to the second shaft to compress a refrigerant according to the operation of the second motor
Data Source
AI summary
A dual compressor for a vehicle comprises a first motor, a first shaft connected to the first motor to transmit a torque of the first motor, a first compressing unit connected to the first shaft to compress a refrigerant according to the operation of the first motor, a second motor, a second shaft connected to the second motor to transmit a torque of the second motor, a second compressing unit connected to the second shaft to compress a refrigerant according to the operation of the second motor, and an inverter electrically connected to the first and second motors to drive the first and second motors by converting DC power supplied from a vehicle into AC power, and controlling the output of the first compressing unit or the second compressing unit by controlling the power applied to the first motor or the second motor.