Unlock instant, AI-driven research and patent intelligence for your innovation.

Permanent-magnet brushless motor

A permanent magnet brushless motor, permanent magnet technology, applied in electrical components, electromechanical devices, magnetic circuit static parts and other directions, can solve high power loss, can not improve the inductance magnetic field and current and voltage strength, can not solve the torque and speed synchronization problems, etc., to achieve the effect of torque and speed improvement

Active Publication Date: 2014-04-02
曾远维
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Common problems in ordinary motors are due to structural reasons, causing the equipment to not perform well
The first is the stator structure. The grooves limit the number of winding turns of the copper wire, which makes it impossible to increase the strength of the magnetic field and current and voltage of the inductor. At the same time, it cannot overcome the influence of temperature changes, resulting in high power loss and waste of resources.
[0003] In addition, the structure of the rotor also has problems. In addition to naturally offsetting the magnetic flux leakage of the groove, the balance factors such as the centrifugal force of the rotor rotation, the accelerated wear of the left and right two-end bearings and the cutting of the magnetic force line caused by the impact make the real technical structure of the motor only 30%. The effective utilization rate of the torque and speed cannot be solved even if there is speed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Permanent-magnet brushless motor
  • Permanent-magnet brushless motor
  • Permanent-magnet brushless motor

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0023] Take the permanent magnet brushless motor of the present invention with a length of 40 cm, a width of 25 cm, and a height of 46 cm as an example. A set of magnetic steel is connected to a voltage of 50V, and the speed is more than 60 revolutions per minute. Naturally inhale the natural torque above 29°~30°, then feed forward current 25A, voltage 62V, power up to 1550W, torque up to 76kg / m, static torque up to 76kg×9.8N=744.8n / m. The natural torque process has a reverse current of 26A, a voltage of 47V, a power of 1222W, a process of over 30mm, a torque of 40kg×9.8 Newton=392n / m, and the joint force of the permanent magnet and the electromagnet on the rotor can reach 744.8kg. , At the same time, it shows that both the forward and reverse current and voltage are as high as 60% of the process.

Embodiment 2

[0025] Adopt the permanent magnet brushless motor of the present invention described in embodiment 1 equally, main engine drives generator to generate electricity, 1500 of rotating speeds turn, 10 kilowatts three-phase four-wire excitation generator, 18 centimeters of diameters of main shaft pulley, 16 centimeters of diameters of the driving wheel of generator, Use the B-shaped rubber pulley groove interlocking method. The test results are divided into four groups as follows:

[0026] ⑴, 6 sets of 12V, 80A battery packs, 6 sets × 12V = 72V, the actual input voltage is 66V, the current is 49A, 66V × 49A = 3234 watts. The main engine drives the generator 10kw three-phase four-wire power generation output high current 58V;

[0027] ⑵, 9 sets of 12V, 80A battery packs, 9 sets × 12V = 108V, the actual input voltage is 102V, the current is 49.6A, 102V × 49.6A = 5059.2 watts. Generator output voltage high current 108V;

[0028] ⑶, 13 sets of 12V, 80A battery packs, 13 sets × 12V =...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a permanent-magnet brushless motor and belongs to the technical field of permanent-magnet motors. The permanent-magnet brushless motor is technically characterized by comprising a shell, a stator and a rotor which are mutually matched are arranged in the shell, a rotary shaft is arranged at the center of the rotor, four electromagnets are circumferentially distributed on the stator, a stator coil is wound on each electromagnet, four permanent magnets corresponding to the electromagnets are circumferentially distributed on the rotor, the opposite surfaces of the electromagnets and the permanent magnets are arc-shaped surfaces, and the radian of all the arc-shaped surfaces is 90 degrees. The permanent-magnet brushless motor is reasonable in structure, effective structural utilization ratio can be increased, torque and speed are increased, and the permanent-magnet brushless motor is used for providing power for other mechanical equipment.

Description

technical field [0001] The present invention relates to a motor, more specifically, to a permanent magnet brushless motor. Background technique [0002] The common problems in ordinary motors are due to structural reasons, which make the equipment unable to perform well. The first is the stator structure. The grooves limit the number of winding turns of the copper wire, which makes it impossible to increase the strength of the magnetic field of the inductor and the current and voltage. At the same time, it cannot overcome the influence of temperature changes, resulting in high power loss and waste of resources. [0003] In addition, the structure of the rotor also has problems. In addition to naturally offsetting the magnetic flux leakage of the groove, the balance factors such as the centrifugal force of the rotor rotation, the accelerated wear of the left and right two-end bearings and the cutting of the magnetic force line caused by the impact make the real technical stru...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/00H02K1/14H02K1/27
Inventor 曾远维
Owner 曾远维