Motor device, controller, motor system, fan unit, and communication method

Patent metadata

Field	Value
Publication number	US-11828291-B2
Application number	US-201917256775-A
Country	US
Kind code	B2
Filing date	Jun 24, 2019
Priority date	Jul 6, 2018
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

A motor device includes a motor, an input unit, a processing unit, and an electrical energy storage unit. The input unit accepts power supplied from a controller during a first period and receives at least a communication signal transmitted from the controller during a second period after the first period. The processing unit updates data for the motor in accordance with the communication signal received by the input unit. The electrical energy storage unit stores, based on the power supplied to the input unit, electrical energy for driving the processing unit.

First claim

The invention claimed is:

1. A motor device comprising:
a motor;
an input unit configured to accept power supplied from a controller during a first period and receive at least a communication signal transmitted from the controller during a second period after the first period;
a processing unit configured to update data for the motor in accordance with the communication signal received by the input unit; and
an electrical energy storage unit configured to store, based on the power supplied to the input unit, electrical energy for driving the processing unit.

2. The motor device of claim 1 , wherein
the input unit is configured to accept the power via a pair of electric cables to be electrically connected to the controller, and
the input unit is configured to receive the communication signal via the pair of electric cables.

3. The motor device of claim 2 , wherein
the processing unit is configured to determine, based on a waveform of voltage applied to the input unit, whether or not the controller is connected to the motor device.

4. The motor device of claim 3 , wherein
the controller is configured to alternately go through a supply period in Which the controller supplies the power to the input unit and a transmission period in which the controller transmits the communication signal to the input unit.

5. The motor device of claim 2 , wherein
the controller is configured to alternately go through a supply period in which the controller supplies the power to the input unit and a transmission period in which the controller transmits the communication signal to the input unit.

6. The motor device of claim 1 , wherein
the processing unit is configured to determine, based on a waveform of voltage applied to the input unit, whether or not the controller is connected to the motor device.

7. The motor device of claim 6 , wherein
the controller is configured to alternately go through a supply period in which the controller supplies the power to the input unit and a transmission period in which the controller transmits the communication signal to the input unit.

8. The motor device of claim 1 , wherein
the controller is configured to alternately go through a supply period in Which the controller supplies the power to the input unit and a transmission period in which the controller transmits the communication signal to the input unit.

9. The motor device of claim 1 , wherein
the transmission period is a period in which output voltage of the electrical energy storage unit does not decrease to less than voltage required to drive the processing unit.

10. The motor device of claim 1 , wherein
communication established between the processing unit and the controller is asynchronous serial communication.

11. The motor device of claim 1 , wherein
the input unit includes:
a power supply circuit configured to convert the voltage applied to the input unit into predetermined voltage and deliver the predetermined voltage to the electrical energy storage unit; and
a receiver circuit configured to receive a voltage signal as the communication signal applied to the input unit and output the voltage signal to the processing unit.

12. The motor device of claim 1 , wherein
the data for the motor includes at least one of operation data for the motor or data for upgrading a version of a program for use to control the motor.

13. A controller electrically connected to the motor device of claim 1 and configured to supply the power to, and transmit the communication signal to, the motor device.

14. A motor system comprising:
the motor device of claim 1 ; and
a controller electrically connected to the motor device and configured to supply the power to, and transmit the communication signal to, the motor device.

15. A fan unit comprising a blade to be attached to the motor of the motor device of claim 1 and configured to turn the blade on receiving force produced by the motor.

16. A method for establishing communication between a controller and a motor device including a motor,
the method comprising:

accepting power supplied from the controller during a first period and storing, based on the power accepted, electrical energy for driving a processing unit of the motor device in an electrical energy storage unit; and
receiving at least a communication signal transmitted from the controller during a second period after the first period and updating the processing unit's data for the motor in accordance with the communication signal received.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Sakamoto Mitsuhiro
• Kimura Shinsuke
• Yokouchi Yasuyuki

Classifications

• F04D25/0693 Primary

  Details or arrangements of the wiring · CPC title

• F04D27/001 Primary

  Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring · CPC title

• H02P29/00

  Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors (arrangements for starting electric motors H02P1/00; arrangements for stopping or slowing electric motors H02P3/00; control of motors that can be connected to two or more different electric power supplies H02P4/00; regulating or controlling the speed or torque of two or more electric motors H02P5/00; vector control H02P21/00) · CPC title

• F04D27/004

  by varying driving speed · CPC title

• F05D2270/335

  Output power or torque · CPC title