CN215378580U - Brushless six-slot four-pole brushless motor - Google Patents
Brushless six-slot four-pole brushless motor Download PDFInfo
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- CN215378580U CN215378580U CN202121505380.6U CN202121505380U CN215378580U CN 215378580 U CN215378580 U CN 215378580U CN 202121505380 U CN202121505380 U CN 202121505380U CN 215378580 U CN215378580 U CN 215378580U
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Abstract
The utility model discloses a brushless six-slot four-pole brushless motor, which comprises a motor main body structure, a motor stator and a motor rotor; the motor stator is fixed inside the motor main body structure, and a coil winding block for generating a magnetic field is fixed on the inner side of the motor stator; the motor rotor is arranged on the inner side of the motor stator, an output shaft for power transmission is fixed in the middle of the motor rotor, a magnet mounting groove is formed in the surface of the motor rotor, the diameter ratio of the motor stator to the motor rotor is 0.5-0.6, an arc-shaped bulge is arranged on the outer side of the motor rotor, an uneven motor air gap is formed between the arc-shaped bulge and the motor stator in a matching mode of the motor rotor, and standard trapezoidal wave counter electromotive force is achieved. The proportion of the brushless six-groove four-pole brushless motor to the inner diameter and the outer diameter of the stator and the rotor through magnetic circuit simulation and electromagnetic simulation operation is as follows: 0.5-0.6, trapezoidal wave counter electromotive force can be realized by matching with uneven motor air gaps, no peak value exists, the operation effect is more stable, and the energy consumption is low.
Description
Technical Field
The utility model relates to the technical field of brushless motors, in particular to a brushless six-slot four-pole brushless motor.
Background
The six-slot four-pole brushless motor is a common brushless motor, and the magnetic attraction is generated on the magnet on the rotor through controlling the coil current on the stator to drive the rotor to rotate, but the existing six-slot four-pole brushless motor has some defects when in use:
the ratio of the inner diameter to the outer diameter of a stator and a rotor of the existing six-slot four-pole brushless motor is generally 0.45-0.5, the counter electromotive force waveform of the existing six-slot four-pole brushless motor is saddle-shaped, and the existing six-slot four-pole brushless motor has the defects of small power density, low efficiency, high power consumption and more motor output efficiency loss.
Aiming at the problems, innovative design is urgently needed on the basis of the original six-slot four-pole brushless motor.
Disclosure of Invention
The utility model aims to provide a brushless six-slot four-pole brushless motor, which aims to solve the problems that the ratio of the inner diameter to the outer diameter of a stator and a rotor of the existing six-slot four-pole brushless motor in the market is generally 0.45-0.5, the counter electromotive force waveform is saddle-shaped, and the defects of the existing six-slot four-pole brushless motor are that the power density is small, the efficiency is low and the power consumption is high.
In order to achieve the purpose, the utility model provides the following technical scheme: the brushless six-slot four-pole brushless motor comprises a motor main body structure, a motor stator and a motor rotor;
the motor stator is fixed inside the motor main body structure, and a coil winding block for generating a magnetic field is fixed on the inner side of the motor stator;
the motor rotor is arranged on the inner side of the motor stator, an output shaft for power transmission is fixed in the middle of the motor rotor, a magnet mounting groove is formed in the surface of the motor rotor, the diameter ratio of the motor stator to the motor rotor is 0.5-0.6, an arc-shaped bulge is arranged on the outer side of the motor rotor, an uneven motor air gap is formed between the arc-shaped bulge and the motor stator in a matching mode of the motor rotor, and standard trapezoidal wave counter electromotive force is achieved.
Further optimize this technical scheme, the coil winding piece is provided with 6 groups at the inboard equidistance of motor stator, and constitutes integrated configuration between motor stator and the coil winding piece, and the magnetic force drive motor rotor through the follow-up production of coil winding piece is rotatory.
Further optimize this technical scheme, the coil winding opposite direction on the symmetrical coil winding piece, and the inner of coil winding piece is the arc structural design, makes rear side electric motor rotor can better atress rotate.
Further optimize this technical scheme, motor stator's the outside is seted up flutedly, and the recess sets up with motor stator's centrosymmetric, can make things convenient for follow-up coil position to fix a position through the setting of recess, reduces motor stator's total material and quality simultaneously.
Compared with the prior art, the utility model has the beneficial effects that: the brushless six-groove four-pole brushless motor is operated to the ratio of the inner diameter to the outer diameter of the stator and the rotor through magnetic circuit simulation and electromagnetic simulation: 0.5-0.6, trapezoidal wave back emf can be realized to the inhomogeneous motor air gap of cooperation, does not have the peak value, and the operation effect is more steady, and the energy consumption is low, cuts out the arc arch with whole circle rotor and forms inhomogeneous motor air gap, realizes the trapezoidal wave back emf of standard, eliminates the electric current peak value, reaches the control waveform that high power density is extremely good, finally reaches the effect that motor system is efficient and power is big, has fully improved the utilization ratio of material, reaches energy-conserving effect of increasing benefit.
Drawings
FIG. 1 is a schematic diagram of a conventional motor lamination;
FIG. 2 is a schematic diagram of a back emf waveform (saddle shape) of a conventional design;
FIG. 3 is a schematic diagram of the shape and structure of the punch of the present invention;
FIG. 4 is a diagram illustrating a structure of a counter potential waveform according to the present invention.
In the figure: 1. a motor stator; 2. a coil winding block; 3. a groove; 4. a motor rotor; 5. an output shaft; 6. a magnet mounting groove; 7. and an arc-shaped bulge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the brushless six-slot four-pole brushless motor comprises a motor main body structure, a motor stator 1 and a motor rotor 4;
the motor stator 1 is fixed inside the motor main body structure, and a coil winding block 2 for generating a magnetic field is fixed on the inner side of the motor stator 1;
the motor rotor 4 is arranged on the inner side of the motor stator 1, an output shaft 5 for power transmission is fixed in the middle of the motor rotor 4, a magnet installation groove 6 is formed in the surface of the motor rotor 4, the diameter ratio of the motor stator 1 to the motor rotor 4 is 0.5-0.6, an arc-shaped bulge 7 is formed in the outer side of the motor rotor 4, and the motor rotor 4 is matched with the arc-shaped bulge 7 to form an uneven motor air gap with the motor stator 1, so that standard trapezoidal wave counter electromotive force is realized;
the diameter ratio of the motor stator 1 to the motor rotor 4 is adjusted to be 0.5-0.6, the motor stator is matched with an uneven motor air gap to approach the standard trapezoidal wave potential, a high-power-density extremely-good control waveform is achieved, and finally the advantages of high motor efficiency and high power are achieved, so that the utilization rate of materials is fully improved (the using amount of silicon steel sheets is reduced, and meanwhile, the using amount of rare earth is saved), and the effects of energy conservation and efficiency improvement are achieved;
the coil winding blocks 2 are arranged in 6 groups at equal angles on the inner side of the motor stator 1, and an integrated structure is formed between the motor stator 1 and the coil winding blocks 2;
the coil current wound on the coil winding block 2 is controlled to generate magnetic force, so that the magnet on the motor rotor 4 is attracted to drive the motor rotor 4 to rotate;
the winding directions of the coils on the symmetrical coil winding blocks 2 are opposite, and the inner ends of the coil winding blocks 2 are designed in an arc-shaped structure;
the subsequent motor rotor 4 can be stressed in the symmetrical direction at the same time, and the stability of the motor rotor 4 during rotation is improved;
the outer side of the motor stator 1 is provided with a groove 3, and the groove 3 is symmetrically arranged with the center of the motor stator 1;
the material utilization rate of the motor stator 1 can be improved through the arrangement of the groove 3, and the coil is conveniently and subsequently positioned and installed.
The working principle is as follows: when the brushless six-slot four-pole brushless motor is used, as shown in fig. 1-4, the conventional rotor is in a full circle shape, a small number of current peak values exist, the motor is unstable in operation, the energy consumption is high, the noise is high, the conventional wave peak is saddle wave, the effect is normal operation, but the operation stability is poor, the noise is high, the efficiency is low, and the power consumption is high.
After improvement, the whole-circle rotor is cut into uneven motor air gaps, and the proportion of the inner diameter to the outer diameter of the motor rotor 4 to the outer diameter of the motor stator 1 is as follows through magnetic circuit simulation and electromagnetic simulation operation: 0.5-0.6, trapezoidal wave counter potential and trapezoidal wave without peak value can be realized, the operation effect is more stable, the energy consumption is low, the sound effect is good, the control waveform with high power density is extremely good, the effects of high efficiency and high power of a motor system are finally achieved, the utilization rate of materials is fully improved (the using amount of silicon steel sheets is reduced, and meanwhile, the using amount of rare earth is saved), the energy-saving and efficiency-increasing effects are achieved, the improved motor efficiency can be increased to 86%, and the output power of the motor is increased by 15-20%.
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (4)
1. The brushless six-slot four-pole brushless motor comprises a motor main body structure, a motor stator (1) and a motor rotor (4);
the motor stator (1) is fixed inside the motor main body structure, and a coil winding block (2) for generating a magnetic field is fixed on the inner side of the motor stator (1);
the motor rotor (4) is arranged on the inner side of the motor stator (1), an output shaft (5) for power transmission is fixed in the middle of the motor rotor (4), and a magnet mounting groove (6) is formed in the surface of the motor rotor (4);
the method is characterized in that: the diameter ratio of the motor stator (1) to the motor rotor (4) is 0.5-0.6, the arc-shaped protrusions (7) are arranged on the outer side of the motor rotor (4), the motor rotor (4) is matched with the arc-shaped protrusions (7) to form an uneven motor air gap with the motor stator (1), and standard trapezoidal wave counter electromotive force is achieved.
2. A brushless six-slot four-pole brushless motor according to claim 1, wherein: the coil winding blocks (2) are arranged in 6 groups at equal angles on the inner side of the motor stator (1), and an integrated structure is formed between the motor stator (1) and the coil winding blocks (2).
3. A brushless six-slot four-pole brushless motor according to claim 2, wherein: the symmetrical coil winding direction on the coil winding block (2) is opposite, and the inner end of the coil winding block (2) is designed into an arc-shaped structure.
4. A brushless six-slot four-pole brushless motor according to claim 1, wherein: the outer side of the motor stator (1) is provided with a groove (3), and the groove (3) is arranged in a manner of being symmetrical with the center of the motor stator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121505380.6U CN215378580U (en) | 2021-07-05 | 2021-07-05 | Brushless six-slot four-pole brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121505380.6U CN215378580U (en) | 2021-07-05 | 2021-07-05 | Brushless six-slot four-pole brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215378580U true CN215378580U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121505380.6U Active CN215378580U (en) | 2021-07-05 | 2021-07-05 | Brushless six-slot four-pole brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215378580U (en) |
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2021
- 2021-07-05 CN CN202121505380.6U patent/CN215378580U/en active Active
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