Apparatus of remotely adjusting the speed of multiple DC brushless motors

A brushless DC motor, long-distance technology, applied in the direction of controlling multiple DC motors, etc., can solve the problems of poor anti-interference ability and increasing control lines.

Active Publication Date: 2015-10-07
常州众致电机电器有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method also needs to increase the control line, and the anti-interference ability is poor

Method used

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  • Apparatus of remotely adjusting the speed of multiple DC brushless motors
  • Apparatus of remotely adjusting the speed of multiple DC brushless motors
  • Apparatus of remotely adjusting the speed of multiple DC brushless motors

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Embodiment Construction

[0047] The present invention will be described in further detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.

[0048] The device of the present invention consists of a rectification control unit and m composed of a speed regulating unit, m is an integer greater than or equal to 2. The structure block diagram of the device system with 3 speed adjustment units is as follows: figure 1 As shown, the rectification control unit receives single-phase 220V AC power from phase line input terminal L and neutral line input terminal N, and outputs controllable rectification voltage from the first controllable rectification output terminal AC1 and the second controllable rectification output terminal AC2. The 1-3# speed adjustment units all input the controllable rectification voltage from the first controllable rectification input terminal AC1 and the second controllable rectification input termina...

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Abstract

An apparatus of remotely adjusting the speed of multiple DC brushless motors includes a rectification control unit and multiple speed adjusting units. The rectification control unit includes a transformer, a control power supply module, a controllable rectification module, a zero-crossing detection module, a single-chip microcomputer control module, a trigger control module, and a speed giving module. The rectification control unit inputs a single-phase 220V AC power source, outputs a controllable rectification voltage that has undergone voltage reduction by the transformer, and sends in the controllable rectification voltage speed control signals including motor running directions and running speed levels. Each speed adjusting unit includes an adjusting power supply module, a waveform sampling module, a single-chip microcomputer adjusting module, an address giving module and a motor drive module, and controls the speed of DC brushless motors on the basis of the speed control signals in the controllable rectification voltage. A remote controller is not needed by the apparatus, a control line needs not to be individually laid, a single-phase power line can be directly utilized to transmit the speed control signals, and the speed of the DC brushless motors can be controlled and adjusted in a remote manner.

Description

technical field [0001] The invention relates to a motor speed regulation technology, in particular to a device for remotely regulating the speed of multiple DC brushless motors. Background technique [0002] When it is necessary to remotely control and adjust the speed of the brushless DC motor, the usual methods are: [0003] One is to use remote control. The drive control circuit of the brushless DC motor is equipped with a remote control receiving device, and the brushless DC motor can be adjusted in steps or steplessly through the remote control. The disadvantage is that it needs to be equipped with a remote control, which is troublesome to manage, and the remote control is easy lost. [0004] The second is the use of digital control technology. For example, the RS-485 bus is used to control the speed of the DC brushless motor. This solution is advanced in technology, but the cost is high. In addition to power lines, the system also needs to lay out digital control b...

Claims

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Application Information

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IPC IPC(8): H02P5/68
CPCH02P5/68
Inventor 凌云陈刚孔玲爽郭艳杰曾红兵聂辉
Owner 常州众致电机电器有限公司
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