CN215601183U

CN215601183U - 4-pole rotor brushless direct current motor

Info

Publication number: CN215601183U
Application number: CN202122209918.5U
Authority: CN
Inventors: 李健军
Original assignee: Dongguan Zhonghanxin Motor Co ltd
Current assignee: Dongguan Zhonghanxin Motor Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-01-21
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a 4-pole rotor brushless direct current motor which comprises an end cover group, a rotor group and a stator group, wherein the rotor group is connected with the stator group, the end cover group is connected with an assembly of the rotor group and the stator group and is fixed through a glue compound and mechanical riveting, the stator group comprises a printed board group, a bearing, an iron core, a winding and a casing, the rotor group comprises magnetic steel, a bushing and a shaft, the shaft is in interference fit with the bushing, and the magnetic steel is coated with the glue compound and is fixedly connected with the matching phase of the bushing. The utility model has the advantages of no electric brush, low interference, electronic commutation, long service life, lower rotating speed and higher torque of the rotor structure, more stable operation commutation, small magnetic resistance and small vibration, and can correct balance.

Description

4-pole rotor brushless direct current motor

Technical Field

The utility model relates to the field of direct current motors, in particular to a 4-pole rotor brushless direct current motor.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The motor is represented by a letter M (old standard is represented by a letter D) in a circuit, the motor mainly plays a role of generating driving torque and serving as a power source of electrical appliances or various machines, the generator is represented by a letter G in a circuit, and the generator mainly plays a role of converting mechanical energy into electric energy. The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. Because the brushless DC motor is operated in a self-control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under the condition of heavy load under the condition of frequency conversion and speed regulation, and oscillation and step-out can not be generated when the load suddenly changes.

In the present stage, the use of the direct current motor has certain defects, the operation is not stable, the balance can not be effectively corrected, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a brushless direct current motor with a 4-pole rotor.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a 4 utmost point rotor brushless DC motor, includes end cover group, rotor group and stator group are connected, the end cover group is connected with the sub-assembly of rotor group, stator group, and rivets fixedly through glue and machinery, stator group includes printed board group, bearing, iron core, winding and casing, the rotor group includes magnet steel, bush and axle.

As a further description of the above technical solution:

the iron core is fixedly connected with the shell glue.

As a further description of the above technical solution:

and the winding is fixedly connected with the assembly of the bearing, the iron core and the shell in an adhesive manner.

As a further description of the above technical solution:

the magnetic steel is provided with four pieces, and two N poles and two S poles are spliced into a circular joint to be connected with the matching position of the lining.

As a further description of the above technical solution:

the printed board group is fixedly connected with the bearing, the iron core, the machine shell and the winding through adhesive.

As a further description of the above technical solution:

the shaft is in interference fit with the bushing.

As a further description of the above technical solution:

the magnetic steel smearing glue compound is fixedly connected with the matching position of the bushing.

As a further description of the above technical solution:

the bearing is in interference fit with the shell.

The utility model has the following beneficial effects:

1. the 4-pole rotor brushless direct current motor is free of electric brushes, low in interference, capable of electronically reversing and long in service life.

2. The 4-pole rotor brushless direct current motor has the advantages that the rotor structure can achieve lower rotating speed and higher torque, the operation reversing is more stable, the magnetic resistance is small, the vibration is small, and the balance can be corrected.

Drawings

Fig. 1 is an assembly view of a 4-pole rotor brushless dc motor according to the present invention;

fig. 2 is a schematic structural diagram of an end cap assembly of a 4-pole rotor brushless dc motor according to the present invention;

fig. 3 is a schematic structural diagram of a stator assembly of a 4-pole rotor brushless dc motor according to the present invention;

fig. 4 is a schematic structural diagram of a rotor set of a 4-pole brushless dc motor according to the present invention.

Illustration of the drawings:

1. an end cap set; 2. a rotor set; 3. a stator group; 4. a bearing; 5. a printed board assembly; 6. an iron core; 7. a winding; 8. a housing; 9. magnetic steel; 10. a bushing; 11. a shaft.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: a4-pole rotor brushless direct current motor comprises an end cover group 1, a rotor group 2 and a stator group 3, wherein the rotor group 2 is connected with the stator group 3, the end cover group 1 is connected with a combined piece of the rotor group 2 and the stator group 3, and the use stability is improved by glue and mechanical riveting;

the stator group 3 comprises a printed board group 5, a bearing 4, an iron core 6, a winding 7 and a casing 8, wherein the iron core 6 is fixedly connected with the casing 8 through an adhesive, the bearing 4 is in interference fit with the casing 8, the winding 7 is fixedly connected with the bearing 4, the iron core 6 and the casing 8 through an adhesive, and the printed board group 5 is fixedly connected with the bearing 4, the iron core 6, the casing 8 and the winding 7 through an adhesive to increase the use stability;

rotor group 2 includes magnet steel 9, bush 10 and axle 11, axle 11 and bush 10 interference fit, dynamic balance is corrected to bush 10 formula that can remove the weight, in order to reduce rotor vibration, ensure that complete machine operates steadily, low vibration, the low noise, magnet steel 9 is paintd and is glued thing and bush 10 cooperation phase fixed connection, magnet steel 9 is equipped with four, and two N utmost points and two S utmost points, piece into circular laminating and bush 10 cooperation phase and be connected, can effectively reduce the magnetic resistance, and the switching-over is steady, can make lower rotational speed, higher moment of torsion.

Finally, it should be noted that: 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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a 4 utmost point rotor brushless DC motor, includes end cover group (1), rotor group (2) and stator group (3), its characterized in that: the rotor set (2) is connected with the stator set (3), the end cover set (1) is connected with the rotor set (2) and the stator set (3) and is riveted and fixed through glue and machinery, the stator set (3) comprises a printed board set (5), a bearing (4), an iron core (6), a winding (7) and a casing (8), and the rotor set (2) comprises magnetic steel (9), a bushing (10) and a shaft (11).

2. A 4-pole rotor brushless dc motor according to claim 1, wherein: the iron core (6) is fixedly connected with the shell (8) through glue.

3. A 4-pole rotor brushless dc motor according to claim 1, wherein: and the winding (7) is fixedly connected with the assembly of the bearing (4), the iron core (6) and the casing (8) by gluing.

4. A 4-pole rotor brushless dc motor according to claim 1, wherein: the magnetic steel (9) is provided with four pieces, and two N poles and two S poles are spliced into a circular joint to be connected with the matching position of the lining (10).

5. A 4-pole rotor brushless dc motor according to claim 1, wherein: the printed board group (5) is fixedly connected with the bearing (4), the iron core (6), the machine shell (8) and the winding (7) through adhesive.

6. A 4-pole rotor brushless dc motor according to claim 1, wherein: the shaft (11) is in interference fit with the bushing (10).

7. A 4-pole rotor brushless dc motor according to claim 1, wherein: the magnetic steel (9) is coated with a glue compound and is fixedly connected with the matching position of the bushing (10).

8. A 4-pole rotor brushless dc motor according to claim 1, wherein: the bearing (4) is in interference fit with the shell (8).