Programmable Air-Conditioner Fan Motor Control for Flexible Gear Settings
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Solution Overview
Problem
Conventional motor controllers for air-conditioner fans are inflexible, requiring air-conditioner manufacturers to purchase new motors or seek changes from producers for different target gear positions, leading to increased production costs and waste due to incompatible motor models.
Innovation Solution
A field programmable motor controller with a central processor, power drive module, power supply module, and communication interface circuit allows air-conditioner manufacturers to freely change target values of gear positions through external programming, enabling flexible operation modes and reuse of existing motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If motor controllers use preset target values of gear positions fixed by motor producers, then the motor controller structure is simple and reliable, but the adaptability to different air-conditioner models is poor and production cost increases
Solution Approach 1:
The motor controller uses a field programmable gate array (FPGA) device that allows dynamic reconfiguration of control parameters. The target values of gear positions can be modified through communication interface circuits without changing the physical hardware structure, enabling the controller to adapt to different air-conditioner models while maintaining a consistent hardware architecture.
Solution Approach 2:
The invention changes the control parameters (target values of gear positions) through software programming rather than hardware modification. By using programmable logic devices and communication interfaces, the controller can load different parameter sets for different air-conditioner models, achieving versatility without increasing structural complexity.
2Adaptability or versatility
If motor producers are asked to change target values of gear positions for different air-conditioner models, then the motor controller can meet specific model requirements, but the production time increases and production cost greatly increases
Solution Approach 1:
The motor controller is pre-configured with programmable logic and communication capabilities during manufacturing. This preliminary setup allows air-conditioner manufacturers to later program the appropriate target values of gear positions for their specific models without requiring motor producers to intervene, thereby maintaining production efficiency while achieving model-specific adaptability.
Solution Approach 2:
The invention introduces a communication interface circuit as an intermediary between the motor controller and external programming devices. This intermediary allows parameter configuration to be performed remotely by air-conditioner manufacturers without involving motor producers in the modification process, thus maintaining production timelines and reducing costs.
3Productivity
If motors are produced with fixed target values of gear positions, then the motor production process is simple and efficient, but large amount of useless motors are accumulated and cannot be reused for different air-conditioner models
Solution Approach 1:
The motor controller is designed with universal programmability, allowing a single motor model to serve multiple air-conditioner models by loading different parameter sets. This multi-functionality eliminates the need to produce separate motor variants for different applications, thereby maintaining production efficiency while preventing motor waste through reuse.
Solution Approach 2:
Instead of discarding motors that don't match specific model requirements, the invention enables recovery and reuse of these motors by reprogramming the controller parameters. Motors can be retained in inventory and reconfigured for different air-conditioner models as needed, converting potential waste into reusable resources.
4Adaptability or versatility
If new motors are purchased for each air-conditioner model requirement, then the specific model requirements are met, but the production cost greatly increases
Solution Approach 1:
The motor controller employs universal programmable logic that can be configured for different air-conditioner models through software rather than requiring different hardware. This allows a single motor design to serve multiple models, eliminating the need to purchase separate motor variants and significantly reducing production costs while maintaining full model requirement satisfaction.
Data Source
AI summary
A motor controller for an air-conditioner fan, including at least a central processor, a power drive module, a power supply module, and a communication interface circuit. The power supply module supply working power to the central processor and the power drive module. Multiple instruction input ports are connected to the central processor. Multiple parameters N are set in the central processor and corresponding to the instruction input ports. The central processor controls the power drive module to drive a motor of the air-conditioner fan to operate at a parameter N corresponding to an instruction input port as the instruction input port is connected. The communication interface circuit is communicated with an external communication device. The external communication device changes the parameters N in the central processor corresponding to the instruction input ports via the communication interface circuit.