CN216873051U

CN216873051U - Novel brushless motor

Info

Publication number: CN216873051U
Application number: CN202220158578.XU
Authority: CN
Inventors: 梁鑫元; 梁茂扬
Original assignee: Individual
Current assignee: Dongyang Jiechang Electric Machinery Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-01
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a novel brushless motor, which relates to the field of motors, and adopts the technical scheme that the novel brushless motor comprises a rotor, a stator, a controller and a position sensor; the rotor comprises a magnetic conductive disc and a mandrel; the stator comprises a shell, an electromagnet and two groups of coil groups; the mandrel is rotationally matched in the shell, and the periphery of the middle part of the mandrel is provided with an electromagnet; the core shafts on two sides of the electromagnet are respectively fixed with magnetic conductive discs, and the magnetic conductive discs are uniformly distributed with a plurality of raised magnetic conductive parts; the periphery of the mandrel is provided with coil groups corresponding to the raised magnetic conduction parts respectively, each coil group comprises a plurality of wire groups, and the number of the wire groups is larger than that of the raised magnetic conduction parts. The rotor has no coil and no permanent magnet, can be used as a dual-purpose machine for generating electricity and driving electricity, and has simple structure, easier maintenance and long service life.

Description

Novel brushless motor

Technical Field

The utility model relates to the field of motors, in particular to a novel brushless motor.

Background

Traditional motor passes through the brush and electrically conducts to the rotor, and then utilizes the coil on the rotor to magnetize the iron core, and there is wear and tear that does not stop in the brush motor brush end of tradition, need not stop changing the brush, and the maintenance cost is higher, to this, this technical scheme provides a new motor structure scheme.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a novel brushless motor which is integrally provided with no electric brush, a rotor provided with no coil and no permanent magnet, and has the advantages of simple structure, easier maintenance and long service life.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a novel brushless motor comprises a rotor, a stator, a controller and a position sensor;

the rotor comprises a magnetic conductive disc and a mandrel;

the stator comprises a shell, electromagnets and two groups of coil groups;

the core shaft is matched in the shell in a rotating mode, the electromagnet is sleeved on the periphery of the middle of the core shaft, and the electromagnet is fixed with the shell; the core shafts on two sides of the electromagnet are respectively used for fixing the magnetic conduction discs, and the magnetic conduction discs are uniformly distributed with a plurality of raised magnetic conduction parts;

the periphery of the mandrel is respectively provided with coil groups corresponding to the protruding magnetic conduction parts, the coil groups are fixed with the shell, each coil group comprises a plurality of line groups, the number of the line groups is larger than that of the protruding magnetic conduction parts, the position sensors are arranged between the line groups, and the position sensors are fixed on the shell.

When the magnetic flux changing device is used as a motor, direct current is firstly conducted to the electromagnet, the electromagnet generates a magnetic field, and the magnetic field can be influenced by the magnetic conduction disc made of the magnetic conduction material to change a magnetic path. By changing the property of the structure of the magnetically conductive material that the distribution of the magnetic field can be influenced, the magnetic field can be guided to the position of the protrusion of the magnetically conductive disc. At this time, the coil in the coil group is electrified, the magnetic bulge is pulled by the coil, and the motor is started. When the protruding plane sub-part of magnetic conduction portion got into certain coil and has not got into completely, circular telegram pulling magnetic conduction portion arch got into the coil completely, got into back outage completely, and the rotor relies on inertia to continue to rotate, and the same control when waiting for this protruding sub-part of magnetic conduction portion to get into another coil lasts the pulling, makes the rotor continuously rotate.

When the magnetic-conductive disc is used as a generator, the electromagnet is electrified, the spindle is driven to rotate by external power, the magnetic flux of the coil assembly is sequentially changed by the rotating magnetic-conductive disc, and the power generation effect is further realized.

Preferably, the line group is in an annular disc surface on the outer side of the outer disc surface of the magnetic conductive disc, and the raised magnetic conductive part is located on the outer disc surface of the magnetic conductive disc. In the scheme, the wire group is closer to the mandrel, and the overall circle diameter of the motor is smaller.

Preferably, the line group is annularly distributed on the periphery of the outer side wall of the magnetic conductive disc, and the protruding magnetic conductive part is positioned on the outer side wall of the magnetic conductive disc. The wire group is farther away from the mandrel, so that larger torque is provided, and meanwhile, the overall structure of the motor is thinner.

Preferably, the magnetic conductive disc is divided into a plurality of magnetic conductive sector areas, and the protruding magnetic conductive portion is located in a part of the magnetic conductive sector areas. So that the wire set creates a deflecting attractive force to the magnetically permeable disk.

Preferably, each of the line groups is distributed in one-to-one correspondence with each of the magnetic conduction sector regions. So as to form more balanced and stable attraction force on the magnetic conduction disk.

Preferably, the protruding magnetic conduction part and the magnetic conduction plate are arranged in a smooth transition mode. The magnetic force can be better guided to the convex magnetic conduction part.

Preferably, the six line groups are divided into a first group and a second group which are respectively connected in series, and the line groups of the first group and the line groups of the second group are distributed at intervals. So that the line groups are electrified in sequence, and the structure is more simplified.

Preferably, the electromagnet comprises an iron core and an inner coil wound on the outer wall of the iron core, a through hole is formed in the axis of the iron core, and the mandrel penetrates through the through hole. The magnetic force can be increased and guided.

Preferably, the outer wall of the iron core is provided with an annular groove, the inner coil is wound in the annular groove, and a notch of the annular groove is fixed with the inner wall of the shell. The fixed inner coil of being convenient for more stable, the fine relation between handling inner coil and the iron core, the iron core adopts the silicon steel sheet.

Preferably, the inner coil is a complete set of coil structures. The magnetic field change which is more stable and balanced is provided by being matched with the magnetic conduction disc.

The utility model has the beneficial effects that:

the scheme can be used as a dual-purpose machine (a motor and a generator). Meanwhile, the whole rotor has no electric brush, no coil and no permanent magnet, and the rotor is simple in structure, easy to maintain and long in service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings in the following description are only eight of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of example 1 of the present invention;

fig. 2 is a schematic view of a rotor of embodiment 1 of the present invention;

fig. 3 is a schematic view of an electromagnet and an iron core according to embodiment 1 of the present invention;

fig. 4 is a positional relationship diagram of a coil assembly and a housing in embodiment 1 of the present invention;

FIG. 5 is a schematic view of example 2 of the present invention;

FIG. 6 is a schematic view of a rotor according to embodiment 2 of the present invention;

FIG. 7 is a diagram showing the positional relationship between a coil assembly and a rotor in embodiment 2 of the present invention;

fig. 8 is a schematic diagram of a coil assembly circuit connection according to an embodiment of the present invention;

the magnetic control device comprises a mandrel 1, a shell 2, a coil group 3, a magnetic disk 4, a raised magnetic part 5, an electromagnet 6, an iron core 7 and an inner coil 8.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1, a novel brushless motor includes a rotor, a stator, a controller and a position sensor; the rotor comprises a magnetically permeable disc 4 and a spindle 1.

The stator comprises a shell 2, an electromagnet 6 and two groups of coil groups 3.

The core shaft 1 is matched with the shell 2 in a rotating mode, the electromagnet 6 is sleeved on the periphery of the middle of the core shaft 1, the electromagnet 6 is fixed with the shell 2, the core shafts 1 on two sides of the electromagnet 6 are respectively fixed with the magnetic conductive discs 4, and the magnetic conductive discs 4 are uniformly provided with a plurality of protruding magnetic conductive parts 5 in a surrounding mode.

The periphery of the mandrel 1 is respectively distributed with the coil groups 3 corresponding to the raised magnetic conduction parts 5, the coil groups 3 are fixed with the shell 2, each coil group 3 comprises a plurality of line groups, the number of the line groups is larger than that of the raised magnetic conduction parts 5, the position sensors are arranged between the line groups, and the position sensors are fixed on the shell 2. In this embodiment, the number of the wire groups is 6, and the number of the protruding magnetic conductive parts 5 is 3.

This scheme can regard as motor or generator to use, when as the motor, switches on coil assembly 3 and electro-magnet 6, and electro-magnet 6 is because the guide of protruding magnetic conduction portion 5, and the magnetic force distribution of magnetic conduction dish 4 can concentrate at protruding magnetic conduction portion 5, produces magnetic force through 3 circumferences of coil assembly in proper order and drives magnetic conduction dish 4 and rotate, and wherein the magnetic force that electro-magnet 6 produced will magnetize magnetic conduction dish 4 for coil assembly 3 has stronger traction force to magnetic conduction dish 4. When the magnetic-conduction coil set is used as a generator, the electromagnet 6 is electrified, the spindle 1 is driven to rotate by external power, and the magnetic flux of the coil set 3 is sequentially changed by the rotating magnetic-conduction disk 4, so that the power generation effect is realized.

Referring to fig. 2, the wire set is an annular disk surface on the outer side of the outer disk surface of the magnetic disk 4, and the protruding magnetic conductive portion 5 is located on the outer disk surface of the magnetic disk 4. In the scheme, the wire group is closer to the mandrel 1, and the overall circle diameter of the motor is smaller.

The magnetic conductive disk 4 is divided into a plurality of magnetic conductive sector areas, and the raised magnetic conductive part 5 is positioned in a part of the magnetic conductive sector areas. So that the line set creates an attractive force for deflection of the magnetically permeable disc 4. The magnetic conductive disc and the electromagnet core are made of magnetic conductive materials, such as magnetic conductive silicon steel sheets and nickel-iron alloy metal sheets.

Each line group is distributed in one-to-one correspondence with each magnetic conduction sector area. So as to form more balanced and stable attraction force on the magnetic conduction disk 4,

the protruding magnetic conduction part 5 and the magnetic conduction disc 4 are arranged in a smooth transition mode. Facilitating better guidance of the magnetic force towards the convex magnetically permeable part 5.

As shown in fig. 4, the six line groups are divided into a first group and a second group which are respectively connected in series, and the line groups of the first group and the line groups of the second group are distributed at intervals. So that the line groups are electrified in sequence, and the structure is more simplified.

Referring to fig. 3, the electromagnet includes an iron core 7 and an inner coil 8 wound around an outer wall of the iron core 7, a through hole is formed in an axis of the iron core 7, and the core shaft 1 penetrates through the through hole. The magnetic force can be increased and guided.

The outer wall of the iron core 7 is provided with an annular groove, the inner coil 8 is wound in the annular groove, and a notch of the annular groove is fixed with the inner wall of the shell 2. The inner coil 8 is more stably fixed, and the relationship between the inner coil 8 and the iron core 7 is well processed.

The inner coil 8 is a whole set of coil structure. So as to provide more stable and balanced magnetic field change by matching with the magnetic conduction disk 4.

In the embodiment, a single chip microcomputer control circuit of the type IC-STM32F030C6T6-ST-LQFP48-21+ is switched, and a Hall sensor of the type 177-MP-SIP-3-20+ is used as a position sensor.

Example 2

As shown in fig. 5 to 7, compared with embodiment 1, embodiment 2 has the following technical features: the wire group is annularly distributed on the periphery of the outer side wall of the magnetic conductive disc 4, and the convex magnetic conductive part 5 is positioned on the outer side wall of the magnetic conductive disc 4. The wire group is farther away from the mandrel 1, so that larger torque is provided, and the overall structure of the motor is thinner.

The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.

Claims

1. A novel brushless motor is characterized by comprising a rotor, a stator, a controller and a position sensor;

the rotor comprises a magnetic conductive disc (4) and a mandrel (1);

the stator comprises a shell (2), an electromagnet (6) and two groups of coil groups (3);

the mandrel (1) is matched in the shell (2) in a rotating mode, the electromagnet (6) is sleeved on the periphery of the middle of the mandrel (1), and the electromagnet (6) is fixed with the shell (2); the core shafts (1) on the two sides of the electromagnet (6) are respectively used for fixing the magnetic conductive discs (4), and a plurality of convex magnetic conductive parts (5) are uniformly distributed around the magnetic conductive discs (4);

the periphery of the mandrel (1) is respectively distributed with the coil groups (3) corresponding to the raised magnetic conduction parts (5), the coil groups (3) are fixed with the shell (2), each coil group (3) comprises a plurality of line groups, the number of the line groups is larger than that of the raised magnetic conduction parts (5), the position sensors are arranged between the line groups, and the position sensors are fixed on the shell (2).

2. A novel brushless electric machine according to claim 1, characterized in that: the line group is arranged on the outer side of the outer disk surface of the magnetic conductive disk (4) and is in an annular disk surface, and the raised magnetic conductive part (5) is positioned on the outer disk surface of the magnetic conductive disk (4).

3. A novel brushless electric machine according to claim 1, characterized in that: the wire group is arranged on the periphery of the outer side wall of the magnetic conductive disc (4) in an annular distribution mode, and the protruding magnetic conductive part (5) is located on the outer side wall of the magnetic conductive disc (4).

4. A novel brushless electric machine according to claim 1, characterized in that: the magnetic conductive disc (4) is divided into a plurality of magnetic conductive sector areas, and the raised magnetic conductive part (5) is positioned in part of the magnetic conductive sector areas.

5. The novel brushless electric machine of claim 4, wherein: and the line groups are distributed in one-to-one correspondence with the magnetic conduction sector areas.

6. A novel brushless electric machine according to claim 1, characterized in that: the protruding magnetic conduction part (5) and the magnetic conduction disc (4) are arranged in a smooth transition mode.

7. A novel brushless electric machine according to claim 1, characterized in that: the six line groups are divided into a first group and a second group which are respectively connected in series, and the line groups of the first group and the line groups of the second group are distributed at intervals.

8. A novel brushless electric machine according to claim 1, characterized in that: the electromagnet comprises an iron core (7) and an inner coil (8) wound on the outer wall of the iron core (7), a through hole is formed in the axis of the iron core (7), and the core shaft (1) penetrates through the through hole.

9. A novel brushless electric machine according to claim 8, wherein: the outer wall of the iron core (7) is provided with an annular groove, the inner coil (8) is wound in the annular groove, and a notch of the annular groove is fixed with the inner wall of the shell (2).

10. A novel brushless electric machine according to claim 1, characterized in that: the electromagnet (6) is of a whole group of coil structures.