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Intelligent and industrial brushless direct current motor

A brushed DC motor, industrial technology, applied in the field of motors, can solve the problems of low efficiency, large starting current, and motor damage of three-phase asynchronous motors, and achieve the effects of improving service life, reducing usage, and reducing vibration and noise

Inactive Publication Date: 2015-12-02
ZHEJIANG JEAMO MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Three-phase asynchronous motors have low efficiency and large volume
The efficiency of the three-phase synchronous motor is higher than that of the three-phase asynchronous motor, but because there is no drive board control, the large starting current may easily lead to rotor demagnetization
The above two motors are not protected against overcurrent, overheating, overvoltage and stalling of the motor, which is easy to damage the motor

Method used

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  • Intelligent and industrial brushless direct current motor

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Embodiment

[0012] Example: such as figure 1 As shown, an intelligent industrial brushless DC motor includes a rotor 4, a stator 3, a casing 2, a front end cover 1, a rear end cover 5, a wind cover 7, a fan 8 and a drive plate 6, and the stator adopts a full circle The iron core ensures the consistency of the air gap between the rotor and the stator. The rotor is an IPM rotor structure; the drive plate is placed on the rear end cover side of the motor and integrated with the motor. The motor drive board uses FOC position-free sensing, model reconstruction-based rotation angle observer, and SVPWM sine wave 180° control technology. The fan is arranged on the outside of the driving board. It can dissipate heat for the motor and the driver board at the same time, reduce the size of the motor, and reduce the cost. The motor has built-in over-current protection, over-voltage, under-voltage protection and over-temperature protection devices, which can prevent the rotor from demagnetizing.

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Abstract

The invention discloses an intelligent and industrial brushless direct current motor. The direct current motor comprises a rotor, a stator, a housing, a front end cover, a rear end cover, a fan cover, a fan and a driving plate. The stator employs a whole circle iron core, the air gap consistency of the rotor and the stator is ensured, and the rotor is an IPM rotor structure. The driving plate is placed at the rear cover side of the motor, and is integrated with the motor. The direct current motor employs the whole circle iron core, and the air gap consistency of the rotor and the stator is ensured. The IPM rotor structure is employed, the motor cogging torque is reduced, the usage amount and the cost of neodymium iron boron are lowered, and the motor efficiency is raised. The driving plate is placed at the rear cover side of the motor and is integrated with the motor, which facilitates installation for a user. The motor service life is raised, the motor efficiency is raised, and vibration noise is lowered.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to an intelligent industrial brushless DC motor. Background technique [0002] At present, industrial motors use three-phase asynchronous motors and three-phase synchronous motors without drive boards. Three-phase asynchronous motors have low efficiency and large volume. The efficiency of the three-phase synchronous motor is higher than that of the three-phase asynchronous motor, but because there is no drive board control, the large starting current may easily cause the rotor to demagnetize. The above two motors are not protected against overcurrent, overheating, overvoltage and stalling of the motor, which may easily damage the motor. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an intelligent industrial brushless DC motor, which adopts a full-circle stator core and IPM rotor structure, plus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/27H02K11/00H02K9/06
Inventor 朱春富朱中杰王寿根高山风李永兵郑许红王方兵毛黎军
Owner ZHEJIANG JEAMO MOTOR