CN211266723U

CN211266723U - AC brushless self-driven motor

Info

Publication number: CN211266723U
Application number: CN201922241571.5U
Authority: CN
Inventors: 庄绪超
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-15
Filing date: 2019-12-15
Publication date: 2020-08-14
Anticipated expiration: 2029-12-15

Abstract

The utility model discloses a single-phase AC brushless self-driven motor, which is characterized in that the motor main body has no carbon brush, no driver and no charger, and only has the motor main body, wherein the motor main part be motor casing (1), stator core (2), stator coil (3), front bearing end cover (8), constitute the stator assembly, rear bearing (4), rotor shaft (5), rotor core (6), the rotor assembly is constituteed in front bearing (7), stator coil (3) are arranged along the stator core circumference by 2N coil and are constituteed, N is the natural number, rotor core (6) are arranged along the rotor shaft by 2N magnetic pole and are constituteed, rotor core (6) are placed and can be followed the stator core central axis rotation in the stator core, stator coil (3) number and rotor (6) magnetic pole number one-to-one, the rotor core comprises high strength tombarthite ferromagnetic material. The motor is simple in structure, high in cost performance, free of motor burning, free of charging and durable.

Description

AC brushless self-driven motor

Technical Field

The utility model relates to an exchange brushless motor, especially relate to a self-driven brushless motor.

Background

The alternating current brushless motor and the direct current brushless motor on the domestic market and the market all have a common fault: the structure of the motor body and the driver is complex in function, system and price.

Disclosure of Invention

In order to solve the problem, the utility model provides an exchange brushless self-driven motor, this kind of motor only motor main part do not have the driver. The motor is simple in structure, high in cost performance, free of motor burning, free of charging and durable.

In order to achieve the above object, the utility model provides an exchange brushless self-driven motor is realized like this:

scheme 1. the inside of the motor casing has 2 stator coils evenly distributed along the circumference of the stator core, that is, one stator coil is arranged at every 180 degrees, the rotor has 1 pair of magnetic poles evenly distributed on the rotor shaft, one magnetic pole is arranged at every 180 degrees, the magnetic poles and the stator coils are opposite in pairs in space, when two opposite coils are supplied with alternating current, at a certain moment, the positive half cycle of the alternating current arrives to generate a determined magnetic field N pole, and the opposite magnetic pole is just the N pole, because like poles repel each other, the rotor rotates by an angle; when the negative half cycle of the alternating current arrives, a determined magnetic field S pole is generated, the opposite magnetic pole is just the S pole, and the like-pole repelling rotor rotates by an angle, so that the motor runs.

Scheme 2. 4 stator coils are uniformly distributed in the motor shell along the circumference of the stator core, namely, one stator coil is arranged at every 90 degrees, 2 pairs of magnetic poles of the rotor are alternately and uniformly distributed on the rotor shaft according to N, S sequence, one magnetic pole is arranged at every 90 degrees, the magnetic poles and the stator coils are opposite in pairs in space, when two opposite coils are supplied with alternating current, at a certain moment, the positive half cycle of the alternating current arrives to generate a determined magnetic field N pole, and the opposite magnetic pole is just the N pole, and the rotor rotates by an angle due to the repulsion of like poles; when the negative half cycle of the alternating current arrives, a determined magnetic field S pole is generated, the opposite magnetic pole is just the S pole, and the like-pole repelling rotor rotates by an angle, so that the motor runs.

In both schemes, single-phase alternating current is supplied to the motor, and the coil windings are connected according to the display poles or the consequent poles.

Because the utility model discloses a no driver structure to can obtain following beneficial effect: compared with the brushless motor with the same power on the market, the brushless motor has simple production process, saves a large amount of manpower, material resources and financial resources, and greatly reduces the price; the motor is not burnt, the charging is not carried out, the durability is realized, and the problem of driver damage is avoided.

Drawings

FIG. 1 is a structural exploded view of the present embodiment

FIG. 2 is a side view of the present embodiment

The attached drawings are marked as follows: 1. motor casing, 2. stator core, 3. stator coil, 4. rear bearing, 5. rotor shaft,. 6. rotor magnetic core, 7. front bearing, 8. front bearing end cover

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The invention is described in further detail below with reference to the figures and examples

In the embodiment, a motor shell 1, a stator core 2, a stator coil 3 and a front bearing end cover 8 form a stator assembly; the rear bearing 4, the rotor shaft 5, the rotor magnetic core 6 and the front bearing 7 form a rotor assembly; the stator coil 3 is formed by arranging 2N (N is a natural number) coils along the circumference of a stator core; the rotor magnetic core 6 is composed of 2N (N is a natural number) pairs of magnetic poles arranged along the rotor shaft; the rotor magnetic core 6 is placed in the stator iron core and can rotate along the central axis of the stator iron core; the number of the stator coils 3 is in one-to-one correspondence with the number of the magnetic poles of the rotor 6; the rotor magnetic core 6 is made of high-strength rare earth ferromagnetic material.

When the motor is used, the coil winding is connected according to the display pole or the consequent pole to lead out two power supply wires, and the two power supply wires are connected to a single-phase alternating current power supply, so that the motor can be normally used.

Claims

1. The utility model provides a single phase alternating current brushless self-driven motor, its characterized in that motor main part does not have the carbon brush, does not have the driver, does not have the charger, only motor main part, wherein motor main part be motor casing (1), stator core (2), stator coil (3), front bearing end cover (8), constitute the stator assembly, rear bearing (4), rotor shaft (5), rotor magnetic core (6), rotor assembly is constituteed to front bearing (7), stator coil (3) are arranged along the stator core circumference by 2N coils and are constituteed, N is the natural number, rotor magnetic core (6) are arranged along the rotor shaft by 2N magnetic poles and are constituteed, rotor magnetic core (6) are placed and can be followed stator core the central axis and rotate in stator core, stator coil (3) number and rotor (6) magnetic pole number one-to-one, rotor magnetic core comprises the strong magnetic material of high strength tombarthite.

2. The single-phase ac brushless self-driven motor according to claim 1, wherein:

the motor casing (1) is inside to have 2 stator coils (3) along stator core (2) circumference evenly distributed, that is to say there is one stator coil (3) every 180 degrees angles, and rotor core (6) have 1 to magnetic pole evenly distributed on rotor shaft (5), have a magnetic pole every 180 degrees angles, and magnetic pole and stator coil (3) are two liang of relative in space.

3. The single-phase ac brushless self-driven motor according to claim 1, wherein:

the motor casing (1) is inside to have 4 stator coils (3) along stator core (2) circumference evenly distributed, that is to say there is one stator coil (3) every 90 degrees angles, and rotor core (6) have 2 pairs of magnetic poles according to N, S order alternate evenly distributed on rotor shaft (5), have a magnetic pole every 90 degrees angles, and magnetic pole and stator coil are two liang of relative in space.

4. The single-phase ac brushless self-driven motor according to claim 1, wherein:

at a certain moment, when alternating current is supplied to two opposite stator coils (3), the positive half cycle of the alternating current arrives to generate a determined magnetic field N pole, and the opposite magnetic pole is just the N pole, and the like poles repel each other, so that the rotor rotates by an angle; when the negative half cycle of the alternating current arrives to generate a determined magnetic field S pole, the opposite magnetic pole is just the S pole, and the like-pole repelling rotor rotates by an angle, so that the motor runs.

5. The single-phase ac brushless self-driven motor according to claim 1, wherein:

the windings of the stator coil (3) are connected according to the display pole or the consequent pole, and two power supply wires are led out.

6. The single-phase ac brushless self-driven motor according to claim 1, wherein: the motor is a single-phase alternating current motor.