Single-Motor Heat Exchanger Cooling System with Drive Mechanism
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Solution Overview
Problem
Conventional heat exchanger cooling systems require two motors to control two sections in a single air duct, increasing production costs and weight, while limiting aerodynamic performance and fuel efficiency.
Innovation Solution
A heat exchanger cooling system with a duct housing partitioned into two sections, each divided into two sub-sections, using a single motor to control air flaps through a drive device with rotators, gears, and levers, allowing simultaneous control of all sub-sections to optimize cooling and aerodynamic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two motors are used to control two sections in a single air duct, then each section can be independently controlled, but production costs and weight increase
Solution Approach 1:
The patent combines two independent motor systems into a single motor system. The first and second air flaps are controlled by a single motor through a drive mechanism that includes a first drive device for the first air flap and a second drive device for the second air flap, both driven by the same motor. This merging reduces the total number of motors from two to one, thereby reducing weight and production costs while maintaining independent control capability of each section.
Solution Approach 2:
The single motor serves multiple functions by controlling both the first air flap (for the first section) and the second air flap (for the second section). The drive mechanism is designed so that the motor can independently actuate each air flap through separate drive devices, making the single motor a universal actuator for multiple control functions that would traditionally require two separate motors.
2Measurement precision
If two motors are used to control two sections, then control precision is maintained, but production costs increase
Solution Approach 1:
The patent merges two motor systems into one, reducing component count and production costs. The single motor is paired with a coordinated drive mechanism that includes first and second drive devices, each capable of precise control. This consolidation maintains control precision through the mechanical design of the drive devices while reducing manufacturing complexity and cost compared to using two separate motors.
Solution Approach 2:
The drive mechanism acts as an intermediary between the single motor and the two air flaps. It includes a first drive device coupled to the first air flap and a second drive device coupled to the second air flap, both driven by the same motor. This intermediary mechanism enables precise control of each air flap while using only one motor, thereby maintaining control precision without incurring the cost of two motors.
3Device complexity
If active air flap is disposed in only upper or lower portion, then system simplicity is maintained, but aerodynamic performance and fuel efficiency are limited
Solution Approach 1:
The patent segments the air duct into two distinct sections: a first section with a first air flap and a second section with a second air flap. Each section can be independently controlled by the drive mechanism, allowing selective opening or closing of different portions of the air duct. This segmentation enables optimized aerodynamic performance by controlling specific sections based on driving conditions while maintaining overall system simplicity through the use of a single motor.
Solution Approach 2:
The patent implements dynamic control of air flaps through a motor-driven mechanism. The first and second air flaps can be dynamically adjusted based on driving conditions, allowing the system to optimize aerodynamic performance in real-time. The drive mechanism enables flexible positioning of each air flap independently, transforming the static single-flap design into a dynamic multi-section control system that improves fuel efficiency without excessive complexity.
Data Source
AI summary
A heat exchanger cooling system may include a frame provided in a duct housing and formed of two sections, each of the two sections being divided into two sub-sections, a single motor provided in the frame, and a drive device configured to be driven by the single motor, wherein air flaps provided in the respective sub-sections are simultaneously controlled by operation of the drive device.