Combined motor controller and combination method thereof

Patent metadata

Field	Value
Publication number	US-11843337-B2
Application number	US-202117517658-A
Country	US
Kind code	B2
Filing date	Nov 2, 2021
Priority date	Aug 7, 2020
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

A combined motor controller, including: a first function module, including at least one power module powered by the mains supply to output a VDC power supply to power other modules; a second function module, including at least one motor control module including a microprocessor control unit (MCU) and an IGBT inverter; and a third function module, including at least one I/O module configured to transmit signals between a system main control board or a peripheral device and the motor control module. Each function module is provided with an independent metal or plastic shell and a first circuit board located in the shell, and the first function module, the second function module and the third function module are connected by mutually matched connectors for power supply or control signal transmission between the function modules.

First claim

What is claimed is:

1. A device, comprising:
a first function module, comprising at least one power module powered by a mains supply to output a VDC power supply to power other modules;
a second function module, comprising at least one motor control module comprising a microprocessor control unit (MCU) and an insulated gate bipolar transistor (IGBT) inverter; and
a third function module, comprising at least one I/O module configured to transmit signals between a system main control board or a peripheral device and the motor control module;

wherein:
one motor control module controls one motor body, and the motor control module powered by the VDC power supply is configured to receive external input control signals and output power to the motor body, thereby controlling speed or torque or air flow of the motor body; and
each function module is provided with an independent metal or plastic shell and a first circuit board located in the shell, and the first function module, the second function module and the third function module are connected by mutually matched connectors for power supply or control signal transmission between function modules.

2. The device of claim 1 , further comprising:
a fourth function module, comprising a redundancy control module configured to automatically enable a backup function module when the first function module, the second function module or the third function module fails, so as to ensure that a client system can still operate;
a fifth function module, comprising the backup function module having the same function as the first function module, the second function module or the third function module, wherein one or more backup function modules are provided to meet customer needs, and the above function modules are combined to form a motor control unit; and
the fourth function module and the fifth function module are both provided with an independent metal or plastic shell and a first circuit board located in the shell, and the first function module, the second function module, the third function module, the fourth function module, and the fifth function module are connected by mutually matched connectors.

3. The device of claim 2 , wherein the redundancy control module comprises a redundancy control MCU, a plurality of relays, a display circuit, and a bus communication connecting circuit, and the redundancy control MCU of the circuit is communicated with other function modules by bus communication; the redundancy control MCU automatically enables the backup function module by the plurality of the relays; and the display circuit is configured to display the status of other function modules.

4. The device of claim 3 , wherein the first function module, the third function module and the backup function module are all further provided with a network communication unit comprising a bus communication MCU, a communication bus connecting circuit, and a function detection circuit; the function detection circuit is configured to detect the status of its respective module and transmit signals to the bus communication MCU; and the bus communication MCU is connected to a data bus by the communication bus connecting circuit for data transmission with the redundancy control MCU.

5. The device of claim 4 , wherein the I/O module is subdivided into multiple types depending on functions, comprising at least one of:
a multi-position 24 VAC input module which receives a 24 VAC position signal from a main control board of a client and transmits the signal to the motor control module;
a PWM input module which receives a PWM signal from the main control board of the client and transmits the signal to the motor control module;
a 0-10 VDC input module which receives a 0-10 VDC signal from the main control board of the client and transmits the signal to the motor control module;
a serial communication module based on RS485 which requires the motor control module to be provided with corresponding drivers to be compatible with different communication protocols;
a Bluetooth wireless communication module which allows users to communicate wirelessly with the motor control module through a mobile App or a PC for configuration and diagnosis;
a pulse output module which outputs pulses for the main control board of the client to monitor a certain parameter of the motor;
an Ethernet LAN module which supports common TCP/IP protocols, and is configured to connect the motor control module to bring the motor control module under building network control or remotely control and monitor the parameter status of the motor through the Internet;
a Human Machine Interface (HMI) function module which is provided with a basic monochrome HMI or an advanced high-definition color screen according to market segmentation, allowing users to control the motor directly, to control the speed/torque/air flow of the motor in real time or to perform configuration and diagnosis, and HMI function module can even be used in laboratory tests; and
a dip switch module which is connected to the motor control module by connectors, and several dip switches are provided in a row for users to change the parameters of the motor in real time.

6. The device of claim 5 , wherein that the first function module, the second function module, the third function module, the fourth function module, and the fifth function module are connected by mutually matched connectors means that the function modules get close together by plugging male connectors into female connectors to save space.

7. The device of claim 6 , wherein all function modules are lined up and then installed on a din rail, and are connected together by flexible flat cables, allowing users to arrange the function modules vertically or horizontally or to distribute the function modules in different positions.

8. The device of claim 5 , wherein function modules are fixed on a base in which a second circuit board is provided for power supply and control signal transmission between the function modules.

9. The device of claim 8 , wherein there are two second function modules which control two motor bodies to form a motor controller of an indoor unit or an outdoor unit respectively.

10. The device of claim 8 , wherein one or more backup function modules serve as backups for the power module, the motor control module, and the I/O module.

11. The device of claim 5 , wherein that the first function module, the second function module, the third function module, the fourth function module and the fifth function module are connected by mutually matched connectors means that the function modules get close together by plugging male connectors into female connectors to save space.

12. A method, comprising subdividing a motor controller into a plurality of function modules, and the plurality of function modules comprising:
a first function module, comprising at least one power module connected to the mains supply to output a corresponding DC power supply to power other modules;
a second function module, comprising at least one motor control module comprising a microprocessor control unit (MCU) and an IGBT inverter, wherein one motor control module controls one motor body, and the motor control module powered by the VDC power supply is configured to receive external input control signals and output power to the motor body, so as to control speed or torque or air flow of the motor body; and
a third function module, comprising at least one an I/O module configured to transmit signals between a system main control board or a peripheral device and the motor control module;
the at least one power module, the at least one motor control module and the at least one I/O

Assignees

• Zhongshan Broad Ocean Motor Co

Inventors

• Hu Ge Garrett James
• Bian Wenqing
• Sun Hairong

Classifications

• H02P27/08 Primary

  with pulse width modulation · CPC title

• H02K5/225 Primary

  Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title

• H02K11/33

  Drive circuits, e.g. power electronics (H02K11/38 takes precedence) · CPC title

• H04L12/40

  Bus networks · CPC title

• H02K2211/03

  Machines characterised by circuit boards, e.g. pcb · CPC title