Centralized motor controller convenient in configuring motor

Abstract

A centralized motor controller convenient in configuring motors is connected to an application system controller and used for receiving an instruction of the application system controller to control multiple independent motors. The centralized motor controller comprises a mother circuit board, at least two sub-circuit boards and multiple motors. A power supply portion and a mother board microprocessor are arranged on the mother circuit board, the power supply portion is used for supplying power for each circuit and each sub-circuit board, and the mother board microprocessor receives the instruction of the application system controller. The multiple motors comprise three motors or more, among which at least two motors adopt a permanent magnet synchronous motor without a motor controller. The multiple sub-circuit board at least comprise two sub-circuit boards, each sub-circuit board comprises a sub-board microprocessor, an inverter unit, and a rotor position detection unit, each sub-circuit board is connected to one permanent magnet synchronous motor without the motor controller, the sub-board microprocessor drives the permanent magnet synchronous motor without the motor controller through the inverter unit, and the rotator position detection unit sends rotor position data of the permanent magnet synchronous motor without the motor controller to the sub-board microprocessor. The mother circuit board is electrically connected to the multiple sub-circuit boards through connectors, and the mother board microprocessor establishes connection communication with the sub-board microprocessor. The centralized motor controller is convenient in configuring and assembling motors of different types, and can eliminate overlapping circuit configuration, thereby simplifying the circuit structure and lowering the product cost.

Description

Technical field: [0001] The invention relates to a centralized motor controller for convenient configuration of motors. Background technique: [0002] In recent years, with the increasingly fierce competition in the field of electrical appliances, the technical requirements for products have been continuously improved, such as energy saving and environmental protection, high controllability, intelligent controllability, short development cycle, and low noise. As the core component, the motor will undoubtedly become the key component to solve the above technical problems. The traditional motor uses a single-phase AC motor PSC, which has low efficiency, relatively high energy consumption, high noise, and low controllability and intelligence. [0003] With the development of motor technology, a permanent magnet synchronous motor has appeared. This kind of motor must have a motor controller, and the motor controller is used to achieve the purpose of electronic commutation of the...

AI Technical Summary

Problems solved by technology

[0004] There are multiple motors in the current central air-conditioning system, ventilation system, washing machine system and other equipment. There may be 2 or more motors using permanent magnet synchronous motors. Each permanent magnet synchronous motor has an independent motor controller. figure 1 It is a structural block diagram of the existing central air-conditioning system HVAC. Each motor controller includes an independent power supply part, a microprocessor, an inverter unit and a rotor position detection unit. In the existing technical scheme, each motor controller has The power supply part, microprocessor, inverter circuit and motor operating parameter detection unit are set, so the entire control part circuit is overlapped and configured, the structure is complicated, and the hardware and software resources cannot be fully utilized, which will inevitably lead to a great increase in product cost and waste of resources.

In addition, due to the limited layout space of the motor controller, heat dissipation becomes a more difficult problem

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