CN216872976U

CN216872976U - Novel external rotor motor

Info

Publication number: CN216872976U
Application number: CN202220407899.9U
Authority: CN
Inventors: 杨恒超; 金维
Original assignee: Jiangsu Changjin Intelligent Electric Appliance Co ltd
Current assignee: Jiangsu Changjin Intelligent Electric Appliance Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-01
Anticipated expiration: 2032-02-25

Abstract

The utility model provides a novel outer rotor motor, which comprises a core rod, a stator and a stator core, wherein the core rod is arranged on an inner ring of the stator; a convex ring is arranged at one end of the inner wall of the end part of the core rod and used for installing and positioning a tail bearing; the head bearing at the other end of the motor is connected with the tail bearing through a supporting tube. The setting of plug, not only the bearing installation of being convenient for, the bulge loop only one side plays the positioning action moreover, and not only processing is convenient, has improved motor shaft's axiality moreover.

Description

Novel external rotor motor

Technical Field

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

Background

The outer rotor motor is a motor having a structure in which a stator is provided inside and a rotor is provided outside. The lead wires of the outer rotor motor are generally led out from a fixed shaft, and may be in the form of single-phase alternating current, three-phase alternating current, direct current, or the like. Has the characteristics of space saving, compact design and attractive appearance. The cooling device is suitable for being installed in the impeller and has the best cooling effect. No V-belts, additional tension belts or other devices are required.

The two ends of the motor rotating shaft are required to be sleeved with bearings, so that the outer rotor is rotated. When traditional bearing installation, need provide specific installation cavity, it is spacing for realizing the bearing installation, need set up the holding ring in the installation cavity, for the axiality that improves the pivot, the part at holding ring both ends adds man-hour and can not have the dismantlement process, and holding ring one end feeds processing through positive sword promptly, and the other end carries out the reverse sword through changing the cutter under the condition of not dismantling and feeds processing. Although the process can ensure that the coaxiality of the rotating shaft meets the requirement, the process is complex and the processing cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the background art, the utility model discloses a novel outer rotor motor.

The utility model provides a novel outer rotor motor, which comprises a core rod, a stator and a stator core, wherein the core rod is arranged on an inner ring of the stator;

a convex ring is arranged at one end of the inner wall of the end part of the core rod and used for installing and positioning a tail bearing;

the head bearing at the other end of the motor is connected with the tail bearing through a supporting tube.

The setting of plug, not only the bearing installation of being convenient for, the bulge loop only one side plays the positioning action moreover, and not only processing is convenient, has improved the axiality of motor shaft moreover.

To illustrate the specific structure of the convex ring, in the present embodiment, the core rod is tubular, and a convex plate protruding toward the inner wall is provided at one end of the core rod to form the convex ring.

To illustrate the specific location of the raised plate, in this embodiment, the raised plate is located inside the motor housing and the other end of the mandrel is located outside the motor housing.

To illustrate the specific structure of the supporting tube, in the present embodiment, the supporting tube abuts against the inner wall of the core rod to support the tail bearing and the head bearing outer ring.

This problem is further improved since the portion of the core rod located outside the motor housing is relatively weak, in particular the wall thickness of the core rod decreases from the outside to the inside.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

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

in the figure: 1. a core rod; 2. a stator; 3. a tail bearing; 4. a head bearing; 5. supporting a tube; 6. a convex plate.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The first embodiment is as follows:

as shown in fig. 1, the utility model is a novel external rotor motor, which comprises a tubular core rod 1 arranged at the inner ring of a stator 2.

One end of the core rod 1 is positioned inside the motor shell, and the other end is positioned outside the motor shell.

A convex plate 6 protruding towards the inner wall is arranged at the inner end of the core rod 1 and used for installing and positioning the tail bearing 3; a head bearing 4 positioned at the other end of the motor is connected with a tail bearing 3 through a supporting tube 5; the supporting tube 5 is abutted against the inner wall of the core rod 1 and is used for supporting the outer rings of the tail bearing 3 and the head bearing 4.

The motor rotating shaft is inserted in the tail bearing 3 and the head bearing 4.

The setting of plug 1 not only is convenient for the bearing installation, and only one side of bulge loop plays the positioning action moreover, and not only processing is convenient, has improved the axiality of motor shaft moreover.

The second embodiment:

compared with the first embodiment, the differences are as follows: the wall thickness of the core rod 1 decreases from the outside to the inside for increasing the strength of the outside of the core rod 1.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A novel external rotor electric machine which is characterized in that: comprises a core rod (1) which is arranged on the inner ring of a stator (2);

a convex ring is arranged at one end of the inner wall of the end part of the core rod (1) and is used for installing and positioning the tail bearing (3);

the head bearing (4) positioned at the other end of the motor is connected with the tail bearing (3) through a supporting tube (5).

2. The novel external rotor electric machine of claim 1, wherein: the core rod (1) is tubular, and one end of the core rod is provided with a convex plate (6) protruding towards the inner wall to form the convex ring.

3. The novel external rotor electric machine of claim 2, wherein: the convex plate (6) is positioned inside the motor shell, and the other end of the mandrel (1) is positioned outside the motor shell.

4. The novel external rotor electric machine of claim 1, wherein: the supporting tube (5) is abutted against the inner wall of the core rod (1) and used for supporting the outer rings of the tail bearing (3) and the head bearing (4).

5. The novel external rotor electric machine of claim 3, wherein: the wall thickness of the core rod (1) decreases from the outside to the inside.