TWI551002B - The magnetic structure of the motor is improved - Google Patents

Description

Motor magnetic zone improved structure

A modified structure of a magnetic region of a motor, in particular a magnetic domain improved structure in which a motor has magnets of different polarities in a single magnetic region.

According to the general motor, it is widely used in electric fans, air conditioners, air compressors, and motors for machine driving. The main purpose is to use a coil to generate a magnetic pole change, thereby pushing a magnet in the magnetic region to rotate the rotor. However, in today's motor design, the coil only pushes the magnetic zone with a single magnetic pole. Therefore, when the rotor rotates, problems such as a gap and a setback may occur, so that the rotor cannot rotate smoothly. Therefore, how to solve the above problems is the problem that the relevant industry is eager to improve.

The main object of the present invention is to form a magnetic domain by using magnets of different polarities to make the rotor rotate smoothly without causing a break or a setback.

A secondary object of the present invention is to make the rotation of the rotor smoother by using the magnetic field and the poles around which the coils are wound.

In order to achieve the above object, the magnetic domain improved structure of the motor of the present invention is provided with a stator and a rotor, the stator has a base, the base is spaced inwardly with a plurality of poles, and a coil is arranged on each pole; the rotor system is arranged In the stator, the rotor has a body, and a plurality of magnetic regions are arranged around the outer circumference of the body, and the plurality of magnetic regions are close to the end of the pole. The magnetic field is composed of a first magnet and a second magnet, and the magnetic poles of the first magnet and the second magnet are different, and the magnetic poles of the first magnets of the two adjacent magnetic regions are different, and each of the two adjacent ends The magnetic poles of the second magnet of the magnetic domain are different.

The magnetic zone improved structure of the motor, wherein each magnetic zone of the rotor simultaneously corresponds to a pole adjacent to the stator.

The magnetic field improvement structure of the motor, wherein the outer peripheral edge of the rotor is provided with a plurality of positioning grooves, each positioning groove is connected to the front rear surface of the body, and the side walls of the two sides of the positioning groove are inclined, so that the positioning groove forming opening is smaller than a bottom ladder shape, and the first magnet and the second magnet of the rotor are respectively provided with inclined positioning surfaces, so that the first magnet and the second magnet are in a trapezoidal shape with respect to the positioning groove, and are positioned in the positioning groove .

1‧‧‧stator

11‧‧‧ base

12‧‧‧ pole

13‧‧‧ coil

2‧‧‧Rotor

21‧‧‧ body

211‧‧‧ positioning slot

212‧‧‧ side wall

22‧‧‧ Magnetic Area

221‧‧‧First magnet

2211‧‧‧ positioning surface

222‧‧‧second magnet

2221‧‧‧ positioning surface

3‧‧‧ Stator

31‧‧‧Ontology

32‧‧‧Magnetic area

321‧‧‧First magnet

322‧‧‧second magnet

4‧‧‧Rotor

41‧‧‧ base

42‧‧‧ pole

43‧‧‧ coil

The first figure is a front view of the first embodiment of the present invention.

The second drawing is a perspective view of the rotor of the first embodiment of the present invention.

The third figure is an exploded perspective view of the rotor of the first embodiment of the present invention.

Figure 4 is a perspective view showing still another embodiment of the rotor of the first embodiment of the present invention.

Figure 5 is a perspective exploded view of still another embodiment of the rotor of the first embodiment of the present invention.

The sixth drawing is a side exploded view of the second embodiment of the present invention.

Referring to the first to third figures, it is clear from the drawings that the motor of the first embodiment of the present invention is provided with a stator 1 and a rotor 2, wherein the stator 1 has a base portion 11 and a base portion 11 The inner poles are extended with a plurality of poles 12, and the coils 13 are disposed on the poles 12. In the present embodiment, the number of the poles 12 and the coils 13 is set to twelve.

The rotor 2 is disposed in the stator 1. The rotor 2 has a body 21. The outer circumference of the body 21 is surrounded by a plurality of magnetic regions 22, and the plurality of magnetic regions 22 are close to the ends of the poles 12, and the magnetic regions 22 are from the front. A magnet 221 and a rear second magnet 222 are formed. The first magnet 221 and the second magnet 222 are attracted to and/or adhered to the outer periphery of the body 21, and the magnetic poles of the first magnet 221 and the second magnet 222 are different. The magnetic poles of the first magnets 221 of the two adjacent magnetic regions 22 are different, and the magnetic poles of the second magnets 222 of the two adjacent magnetic regions 22 are different. In this embodiment, the number of magnetic regions 22 is set to 10 groups. .

By the way, when the current enters the coil 13 of the stator 1, the coil 13 generates a magnetic field, and the magnetic effect of the current interacts with the magnetic field of the first magnet 221 and the second magnet 222 provided in the magnetic region 22 of the rotor 2 to generate a repulsive thrust. When the rotor 2 is driven to rotate, the coil 13 on the pole 12 interacts with the magnetic field of the first magnet 221 and the second magnet 222 of different polarities in the same magnetic region 22, so that the rotor 2 does not break when rotated. The problem of the difference and the setback makes the rotor 2 rotate more smoothly and increases the output of the torque.

Moreover, by the difference between the number of the poles 12 and the coils 13 and the number of the magnetic regions 22, the magnetic regions 22 of the rotor 2 simultaneously correspond to the poles 12 adjacent to the stator 1, and the rotor 2 can be rotated. More smooth.

Referring to the fourth and fifth figures, it can be clearly seen from the figure that the rotor 2 of the first embodiment of the present invention is provided with a positioning groove 211 at the outer periphery of the body 21, and the positioning groove 211 is connected to the front surface of the body 21 The side wall 212 of the two sides of the positioning groove 211 is inclined, so that the positioning groove 211 forms a trapezoidal shape with an opening smaller than the bottom portion, and the first magnet 221 and the second magnet 222 of the rotor 2 are respectively provided with inclined positioning surfaces. 2211 and 2221, the first magnet 221 and the second magnet 222 are formed in a trapezoidal shape with respect to the positioning groove 211, whereby the first magnet 221 and the second magnet 222 can be inserted into the positioning groove by the front end or the rear end of the positioning groove 211. 211, in order to facilitate the first magnet 221 and the second magnet 222 Located in the positioning slot 211.

Referring to the sixth figure, it can be clearly seen from the figure that the motor of the second embodiment of the present invention is provided with a stator 3 and a rotor 4, wherein the stator 3 has a body 31, and the inner circumference of the body 31 is provided with a plurality of circumferences The magnetic region 32, each magnetic region 32 is composed of a front first magnet 321 and a rear second magnet 322, and the magnetic poles of the first magnet 321 and the second magnet 322 are different. The magnetic poles of the first magnets 321 of the two adjacent magnetic regions 32 are different, and the magnetic poles of the second magnets 322 of the two adjacent magnetic regions 32 are different. In the embodiment, the number of the magnetic regions 32 is 12 groups. .

The rotor 4 is disposed in the stator 3. The rotor 4 has a base portion 41. The base portion 41 has a plurality of poles 42 extending outwardly. The coils 43 are disposed on the poles 42 and the plurality of magnetic regions 32 of the stator 3 are Close to the end of the pole 42, in the present embodiment, the number of poles 42 and coils 43 is set to 10 groups.

By the way, when the current enters the coil 43 of the rotor 4, the coil 43 generates a magnetic field, and the magnetic effect of the current interacts with the magnetic field of the first magnet 321 and the second magnet 322 provided in the magnetic region 32 of the stator 3 to generate a repulsive thrust. The rotor 4 is driven to rotate. Since the coil 43 on the pole 42 interacts with the magnetic fields of the first magnet 321 and the second magnet 322 of different polarities in the same magnetic region 32, the rotor 4 does not break when rotated. The problem of the difference and the setback makes the rotor 4 rotate more smoothly and increases the output of the torque.

Furthermore, the second embodiment of the present invention can be identical to the first embodiment. The number of the poles 42 and the coils 43 is different from the number of the magnetic regions 32, so that the poles 42 of the rotor 4 simultaneously correspond to the stator 4 The adjacent magnetic zone 32 allows the rotor 4 to rotate more smoothly.

2‧‧‧Rotor

21‧‧‧ body

22‧‧‧ Magnetic Area

221‧‧‧First magnet

222‧‧‧second magnet

Claims (5)

A magnetic domain improved structure of a motor, at least provided with a stator and a rotor, wherein: the stator has a base, the base portion has a plurality of poles extending inwardly, and a coil is disposed on each pole; the rotor is disposed in the stator The rotor has a body, and a plurality of magnetic regions are disposed around the outer circumference of the body, and the plurality of magnetic regions are close to the end of the pole, and each of the magnetic regions is composed of a front first magnet and a rear second magnet, and the first magnet and the first magnet The magnetic poles of the two magnets are different, and the magnetic poles of the first magnets of the two adjacent magnetic regions are different, and the magnetic poles of the second magnets of the two adjacent magnetic regions are different. The magnetic domain improved structure of the motor according to claim 1, wherein each of the magnetic regions of the rotor simultaneously corresponds to a pole adjacent to the stator. The magnetic domain improved structure of the motor according to claim 1, wherein the outer peripheral edge of the rotor is provided with a plurality of positioning grooves, each positioning groove is connected to the front rear surface of the body, and the side walls of the positioning groove are inclined. Forming the positioning groove to form an opening having a smaller opening than the bottom portion, and the first magnet and the second magnet of the rotor are respectively provided with inclined positioning surfaces, so that the first magnet and the second magnet are inclined with respect to the positioning groove. Shape and position in the positioning slot. The magnetic field improved structure of the motor is provided with at least a stator and a rotor, wherein: the stator has a body, and a plurality of magnetic regions are arranged around the circumference of the body, and each magnetic region is composed of a front first magnet and a rear second magnet, and The magnetic poles of the first magnet and the second magnet are different, and the magnetic poles of the first magnets of the two adjacent magnetic regions are different, and the two phases are different The magnetic poles of the second magnet of the adjacent magnetic domain are different; the rotor is disposed in the stator, the rotor has a base, the base is spaced apart from the plurality of poles, and the coils are disposed on the poles, and the plurality of magnets of the stator The fauna is close to the end of the pole. The magnetic domain improved structure of the motor according to claim 4, wherein each pole column of the rotor simultaneously corresponds to a magnetic region adjacent to the stator.