CN219477696U

CN219477696U - Efficient brushless motor rotor

Info

Publication number: CN219477696U
Application number: CN202320301061.6U
Authority: CN
Inventors: 丁训刚; 温瑞光
Original assignee: Hangzhou Qirui Technology Co ltd
Current assignee: Hangzhou Qirui Technology Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-08-04
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses a high-efficiency brushless motor rotor, which comprises a rotating shaft, wherein a permanent magnet is fixedly connected to the rotating shaft, dynamic balance wheels are arranged at two ends of the permanent magnet, one end of the rotating shaft is fixedly connected with a cooling fan, the other end of the rotating shaft is provided with a bearing, an insulating sheet is arranged between the dynamic balance wheels and the permanent magnet, an insulating diaphragm is arranged between the rotating shaft and the permanent magnet, the rotating shaft is arranged on a stator through a mounting frame, and the rotating shaft is rotationally connected with the mounting frame; according to the utility model, the rotating shaft is isolated from the permanent magnet through the insulating diaphragm, and the dynamic balance wheel is isolated from the permanent magnet through the insulating sheet, so that the permanent magnet is not contacted with any metal, and the loop of the rotor and the stator is cut off, thus the induced current generated by the permanent magnet is eliminated, the generation of heat of the motor is reduced, and the energy consumption is reduced.

Description

Efficient brushless motor rotor

Technical Field

The utility model relates to the technical field of brushless motors, in particular to a high-efficiency brushless motor rotor.

Background

The rotor and stator of the brushless motor on the market form a loop, so that induced current is generated in a closed magnetic field by the rotation of the rotor, the heat of the motor is increased, the energy consumption of the brushless motor is increased, and therefore, an efficient brushless motor rotor is provided for solving the problems.

Disclosure of Invention

The present utility model is directed to a high-efficiency brushless motor rotor, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an efficient brushless motor rotor, includes the pivot, fixedly connected with permanent magnet in the pivot, the dynamic balance wheel is installed at the permanent magnet both ends, dynamic balance wheel with be equipped with the insulating piece between the permanent magnet.

Preferably, one end of the rotating shaft is fixedly connected with a cooling fan, and the other end of the rotating shaft is provided with a bearing.

Preferably, an insulating diaphragm is arranged between the rotating shaft and the permanent magnet.

Preferably, the rotating shaft is mounted on the stator through a mounting frame, and the rotating shaft is rotationally connected with the mounting frame.

Preferably, the bearing and the cooling fan are both mounted on the rotating shaft in an interference fit manner.

Preferably, the insulating sheet is made of rubber or resin.

Compared with the prior art, the utility model has the beneficial effects that:

the rotating shaft is isolated from the permanent magnet through the insulating diaphragm, and the dynamic balance wheel is isolated from the permanent magnet through the insulating sheet, so that the permanent magnet is not contacted with any metal, and the loop of the rotor and the stator is cut off, so that induced current generated by the permanent magnet is eliminated, the generation of heat of the motor is reduced, and the energy consumption is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

in the figure:

11. a rotating shaft; 12. a permanent magnet; 13. an insulating sheet; 14. a dynamic balance wheel; 15. a heat radiation fan; 16. a bearing; 17. an insulating separator; 18. and (5) mounting a frame.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, in an embodiment of the present utility model, a high-efficiency brushless motor rotor is provided, which includes a rotating shaft 11, a permanent magnet 12 is fixedly connected to the rotating shaft 11, dynamic balance wheels 14 are installed at two ends of the permanent magnet 12, a cooling fan 15 is fixedly connected to one end of the rotating shaft 11, a bearing 16 is installed at the other end of the rotating shaft, an insulating sheet 13 is disposed between the dynamic balance wheels 14 and the permanent magnet 12, an insulating diaphragm 17 is disposed between the rotating shaft 11 and the permanent magnet 12, the rotating shaft 11 is installed on a stator through an installation frame 18, the rotating shaft 11 is rotatably connected with the installation frame 18, the bearing 16 and the cooling fan 15 are all installed on the rotating shaft 11 by adopting interference fit, and the insulating sheet 13 is made of insulating materials such as rubber, resin and the like.

Because all have conductivity in stator, rotor and the bearing in the brushless motor on the market, can form the return circuit like this, can produce induced current when the rotor rotates in closed magnetic field, will through insulating piece 13 dynamic balance wheel 14 with permanent magnet 12 keeps apart, insulating diaphragm 17 will permanent magnet 12 with permanent magnet 12 keeps apart, like this permanent magnet 12 rotates in closed magnetic field just can not produce the electric current, pivot 11 can drive radiator fan 15 rotates, gives off the heat that brushless motor produced away, installs the rotor in the stator through mounting bracket 18, bearing 16 can make pivot 11 more steady rotation.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an efficient brushless motor rotor, includes pivot (11), fixedly connected with permanent magnet (12) in pivot (11), dynamic balance wheel (14), its characterized in that are installed at permanent magnet (12) both ends: an insulating sheet (13) is arranged between the dynamic balance wheel (14) and the permanent magnet (12).

2. A high efficiency brushless motor rotor as claimed in claim 1, wherein: one end of the rotating shaft (11) is fixedly connected with a cooling fan (15), and the other end of the rotating shaft is provided with a bearing (16).

3. A high efficiency brushless motor rotor as claimed in claim 1, wherein: an insulating diaphragm (17) is arranged between the rotating shaft (11) and the permanent magnet (12).

4. A high efficiency brushless motor rotor as claimed in claim 1, wherein: the rotating shaft (11) is arranged on the stator through a mounting frame (18), and the rotating shaft (11) is rotationally connected with the mounting frame (18).

5. A high efficiency brushless motor rotor as claimed in claim 2, wherein: the bearing (16) and the cooling fan (15) are mounted on the rotating shaft (11) in interference fit.

6. A high efficiency brushless motor rotor as claimed in claim 1, wherein: the insulating sheet (13) is made of rubber or resin.