Centralized Motor Control Circuit for Simpler HVAC Drive Systems
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Solution Overview
Problem
Existing electrical equipment systems, including central air conditioning systems, suffer from unnecessary overlap and complexity in control systems, poor heat dissipation, and high production costs due to the inclusion of multiple motor controllers.
Innovation Solution
An indoor digital centralized controller system that controls multiple motors without using motor controllers, featuring a power supply, master control unit, motor control modules, and input interfaces, simplifying circuit structure and reducing resource waste by directly managing AC and brushless DC motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple motor controllers are used to control each motor in electrical equipment systems, then each motor can be controlled independently, but the control system becomes complex and overlapping circuits are created
Solution Approach 1:
The patent combines multiple motor control functions into a single integrated controller that can control multiple motors simultaneously. This eliminates the need for separate motor controllers for each motor, reducing circuit overlap and simplifying the overall control system structure while maintaining independent control capability for each motor.
Solution Approach 2:
The integrated controller is designed with multi-functional capability to control different types of motors (AC motors, brushless DC motors, etc.) within a single device. This universal controller replaces multiple specialized motor controllers, reducing system complexity while preserving individual motor control functionality.
2Power
If multiple motor controllers with power supply circuits are installed, then each motor receives adequate power, but production cost increases and resources are wasted
Solution Approach 1:
The patent merges multiple power supply circuits into a single shared power supply system within the integrated controller. This eliminates redundant power supply components that would otherwise be required for each separate motor controller, reducing production costs and resource consumption while maintaining adequate power delivery to all motors.
3Measurement precision
If each motor has its own motor controller, then motor control precision is maintained, but heat dissipation becomes poor due to overlapping circuits
Solution Approach 1:
By consolidating control functions into a single integrated controller, the patent reduces the total amount of overlapping circuitry and associated heat-generating components. The integrated design improves heat dissipation efficiency compared to multiple separate controllers, while maintaining motor control precision through sophisticated control algorithms and detection units.
4Reliability
If multiple separate motor controllers are used, then each motor can be precisely controlled, but the circuit structure becomes complex and overlapping
Solution Approach 1:
The patent integrates multiple motor control functions into a unified controller architecture that eliminates overlapping circuits. This consolidated design reduces system complexity and potential failure points associated with multiple separate controllers, thereby improving overall reliability while maintaining precise control over each motor through the integrated system.
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 solution simplifies the circuit structure, reduces production costs, and enhances heat dissipation while being conveniently matched with application systems, allowing for flexible use in air conditioning and heating/cooling devices.
Implementation Method 1
The coil winding is configured to acquire alternating current from the motor control module and generate rotating magnetic field to drive a rotor to rotate
Implementation Method 2
The stator assembly and the rotor assembly are coupled magnetically
Data Source
AI summary
An indoor digital centralized controller system (DCCS) that is connected to a controller of an application system and accepts orders from the controller of the application system and controls at least one motor to work. The DCCS includes a power supply, a master control unit (MCU), a plurality of motor control modules, a programming port module, and an input interface. The power supply is configured to supply power for circuits. The MCU is connected to and communicates with the controller of the application system via the input interface. An outer computer is capable of rewriting control programs of the MCU via the programming port module. The MCU is connected to a motor via a motor control module. The motor includes a stator assembly, a rotor assembly, and a shell assembly. The stator assembly and the rotor assembly are coupled magnetically.