CN210724518U

CN210724518U - Brushless direct current micromotor

Info

Publication number: CN210724518U
Application number: CN201922129079.9U
Authority: CN
Inventors: 陈昌财
Original assignee: Jiangxi Magna Technology Co Ltd
Current assignee: Jiangxi Magna Technology Co Ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-06-09
Anticipated expiration: 2029-12-02

Abstract

The utility model relates to a brushless direct current micromotor, which comprises a housin, rotor assembly and stator assembly, the casing outside is equipped with the connecting block, the connecting block is equipped with the hole, the casing is equipped with casing and lower casing, it is equipped with the bearing mount to go up the casing inner chamber, the casing both sides are equipped with the frame down, the frame passes through the screw fixation under on the casing, casing inner chamber bottom is equipped with the support frame down, the support frame is fixed on following casing inner chamber bottom surface, be equipped with the hole in the middle of the support frame, the below supporting shoe of hole, stator assembly installs in the frame, rotor assembly is equipped with the bearing, the bearing runs through the bearing mount, and run through. The utility model discloses the result is simple, and is novel, is worth promoting.

Description

Brushless direct current micromotor

Technical Field

The utility model relates to a micromotor especially relates to a brushless direct current micromotor.

Background

Brushless dc motors, all called brushless dc actuating servomotors, are a type of synchronous motor, i.e. the rotational speed of the motor rotor is influenced by the speed of the rotating field of the motor stator and the number of rotor poles (P): n =60 × f/P. Under the condition of fixed number of poles of the rotor, the rotating speed of the rotor can be changed by changing the frequency of the rotating magnetic field of the stator. The dc brushless motor is a synchronous motor with electronic control (driver, including power supply and control part), which controls the frequency of the stator rotating magnetic field and feeds back the rotation speed of the motor rotor to the control center for repeated correction, so as to achieve a mode close to the dc motor characteristics.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a brushless dc micro-motor.

The utility model provides a brushless direct current micromotor, includes casing, rotor assembly and stator assembly, the casing outside is equipped with the connecting block, the connecting block is equipped with the hole, and the connecting block is by diminishing greatly gradually, and is equipped with circular chamfer, the casing is equipped with casing and lower casing, it is equipped with the bearing mount to go up the casing inner chamber, the casing both sides are equipped with the frame down, the frame passes through the screw fixation under on the casing, casing inner chamber bottom is equipped with the support frame down, the support frame is fixed at following casing inner chamber bottom surface, is equipped with the hole in the middle of the support frame, the below supporting shoe of hole, stator assembly installs in the frame, rotor assembly is equipped with the bearing, the bearing runs through the bearing mount, and runs through in the support frame.

Further, the connecting block comprises an upper connecting block and a lower connecting block, and the connecting block is fixed on the shell through welding.

Further, a sealing ring is arranged between the upper shell and the lower shell.

Furthermore, the bearing fixing frame is provided with a connecting rod, the connecting rod is fixed on the surface of the inner cavity of the upper shell, and a sleeve is arranged in the middle of the connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that, optimize the product process, improved the efficiency of production. The utility model discloses simple structure maintains low cost, the popularization in the market of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of a brushless dc micro-motor according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and drawings.

Referring to fig. 1, an embodiment of the present invention is shown, which is a brushless dc micro-motor 10, including a housing 20, a rotor assembly 21 and a stator assembly 22, wherein a connecting block 24 is disposed outside the housing 20, the connecting block 24 has a hole 25, the connecting block 25 is gradually reduced in size and has a circular chamfer 26, the housing 20 has an upper housing 27 and a lower housing 28, a bearing fixing frame 29 is disposed in an inner cavity of the upper housing 27, frames 30 are disposed on both sides of the lower housing 28, the frames 30 are fixed on the lower housing 28 by screws 31, a supporting frame 32 is disposed at a bottom end of the inner cavity of the lower housing 28, the supporting frame 32 is fixed on a bottom end surface of the inner cavity of the lower housing 28, a hole 33 is disposed in the middle of the supporting frame 32, a supporting block 34 below the hole 33 is disposed in the frame 30, the stator assembly 22 is mounted in the frame 30, the rotor assembly 21 has a bearing, and penetrates the supporting frame 32 and is connected with the supporting block 34.

Further, as a preference of this embodiment, the connecting block 24 includes an upper connecting block 241 and a lower connecting block 242, and the connecting block 24 is fixed to the housing 20 by welding.

Further, as a preferred embodiment of the present invention, a seal ring 36 is provided between the upper casing 27 and the lower casing 28.

Further, as a preferred embodiment, the bearing fixing frame 29 is provided with a connecting rod 37, the connecting rod 37 is fixed on the surface of the inner cavity of the upper housing 27, and a sleeve 38 is arranged in the middle of the connecting rod 37.

It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A brushless DC micromotor is characterized in that: including casing, rotor group and stator group, the casing outside is equipped with the connecting block, the connecting block is equipped with the hole, and the connecting block diminishes by big gradually, and is equipped with circular chamfer, the casing is equipped with casing and lower casing, it is equipped with the bearing mount to go up the casing inner chamber, casing both sides are equipped with the frame down, the frame passes through the screw fixation under on the casing, casing inner chamber bottom is equipped with the support frame down, the support frame is fixed on following casing inner chamber bottom surface, is equipped with the hole in the middle of the support frame, the below supporting shoe of hole, stator group installs in the frame, the rotor group is equipped with the bearing, the bearing runs through the bearing mount, and runs through in the support frame, is connecting the supporting.

2. The brushless dc micromotor according to claim 1, wherein: the connecting block comprises an upper connecting block and a lower connecting block, and the connecting block is fixed on the shell through welding.

3. The brushless dc micromotor according to claim 1, wherein: and a sealing ring is arranged between the upper shell and the lower shell.

4. The brushless dc micromotor according to claim 1, wherein: the bearing fixing frame is provided with a connecting rod, the connecting rod is fixed on the surface of the inner cavity of the upper shell, and a sleeve is arranged in the middle of the connecting rod.