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Integrated driving motor without position sensor

A technology for driving motors and sensors, which is applied in the direction of connection with control/driving circuits, electronic commutation motor control, and single motor speed/torque control, etc. Large and other problems, to achieve the effect of low production cost, reduce the number of production parts, and high production efficiency

Inactive Publication Date: 2012-01-04
WEIHAI CREDITFAN VENTILATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has strict requirements on the starting environment, and there will be a reverse phenomenon, the adaptability to the load change during starting is not strong, there will be a problem of starting failure, and the starting current is relatively large

Method used

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  • Integrated driving motor without position sensor
  • Integrated driving motor without position sensor
  • Integrated driving motor without position sensor

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Effect test

Embodiment Construction

[0083] Below in conjunction with accompanying drawing, the present invention is further described:

[0084] An integrated position sensorless driving motor, which is provided with a motor 16, the motor 16 is composed of a stator 22, an outer rotor 24, a rotor shaft 25, a bearing 27 and an end cover 26, and the stator is installed in the iron core slot by a multi-phase winding , the connection relationship between the stator 22 and the outer rotor 24 is the same as that of the prior art, which will not be repeated here. The outer rotor 24 is fixedly connected to the end cover 26 through the labyrinth spigot, and the motor 16 is provided with a driver 28, which is fixedly connected to the end cover 26. , the end cover 26 is connected with the stator 22 of the motor 16 to form a whole to increase the heat dissipation capacity of the module, the driver 28 is composed of a power board 1 and a control board 2, the control board 2 is fixed on the power board 1, and the power Board 1 ...

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Abstract

The invention relates to the motor technology field, more particularly to an integrated driving motor without a position sensor. The driving motor is provided with a motor; and the motor is composed of a stator, an external rotor, a rotor spindle, and an end cover. The driving motor is characterized in that: a driver is arranged in the motor and is fixedly connected with the end cover; the end cover and the stator of the motor are mutually connected to form an integral body so as to strengthen heat radiation capability of a module; the driver is composed of a power plate and a control plate; the power plate is provided with a major loop, an inlet wire open-phase detection circuit, a bus current detection circuit, an under-voltage and over-voltage detection circuit, a counter-electromotive force detection circuit and a switch power supply circuit; and the control plate is provided with a DSP control system circuit and a communication module circuit. According to the invention, on the basis of the above-mentioned structure, the driving motor has advantages of compact structure, high-density power, high efficiency, low noise, high integrated level, and low cost and the like.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to an integrated position sensorless drive motor. Background technique [0002] At present, brushless DC motor (Brushless DC Motor, hereinafter referred to as BLDC) has been fully developed in the world due to its high reliability, high efficiency, convenient speed regulation, long life and other characteristics. In some more developed countries, Brushless DC motors will become the dominant motor in the next few years and gradually replace other types of motors. [0003] BLDC drive control methods are divided into two types: position sensor type and position sensorless type. In the control method with position sensor, the existence of the position sensor will bring a lot of defects and inconvenience to the application of brushless motor: first, the position sensor will increase the size and cost of the motor; second, the position sensor with many connections will reduce the The rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/08H02P6/18H02K29/00H02K3/28H02K5/18H02K1/22H02K11/02H02K11/20H02K11/26H02K11/27H02K11/30H02K11/33H02P6/182
Inventor 孟凡民徐殿国杨明贵献国曹何金生王公旺宋代奎武文龙
Owner WEIHAI CREDITFAN VENTILATOR
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