CN214014000U

CN214014000U - Micro motor structure

Info

Publication number: CN214014000U
Application number: CN202023215475.2U
Authority: CN
Inventors: 蒋素芬; 吴建茂
Original assignee: Wuxi Heldeke Precision Machinery Co ltd
Current assignee: Wuxi Heldeke Precision Machinery Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-20
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a micro motor structure, which comprises a shell, a stator and a rotor; the casing is formed by the motor support installation of opposition, and partly and a motor support inner wall interference fit of stator, another part and another motor support inner wall interference fit of stator, the stator that the stator formula as an organic whole set up, and this motor structure utilizes novel fixed technology, has cancelled the design of penetrating the lever screw to structurally cancelled a plurality of penetrating the lever screw mounted position on the support, and a plurality of penetrating the lever screw. Thereby greatly reducing the diameter of the motor and the overall weight of the motor. The motor structure cancels a stator shell, adopts an integrated stator, and is more favorable for the heat dissipation of the stator; meanwhile, the weight of the motor is reduced, and the cost is lower.

Description

Micro motor structure

Technical Field

The utility model relates to a portable oxygenerator, in particular to a micro motor structure.

Background

The oxygen generator adopts a motor as a micro compressor or a micro vacuum pump, and the motor structure of the conventional micro compressor or the micro vacuum pump is shown in the figure. Two motor supports of a conventional micro compressor or a conventional micro vacuum pump are required to be connected through a penetrating screw and positioned through a step on a stator shell, and the motor supports are used as two supports for connecting a rotor and a stator of a motor and also used as a shell for installing moving parts of the compressor.

The traditional structure is reliable, but the overall dimension is large, and the number of parts is large. This structure is not suitable for a micro compressor or a micro vacuum pump which is required to have a small size and a light weight.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a micro motor structure, the effectual traditional motor structure size of solving is big, the heavy problem of weight.

The technical scheme is as follows: the utility model relates to a micro motor structure, which comprises a shell, a stator and a rotor; the shell is formed by installing opposite motor supports, one part of the stator is in interference fit with the inner wall of one motor support, and the other part of the stator is in interference fit with the inner wall of the other motor support.

Furthermore, the edge of the stator is provided with a step I, and the inner wall of the motor support is provided with a step II matched with the step I.

Further, the motor support is provided with a bearing mounting opening, and a rod body of the rotor is embedded into the bearing and the stator.

Furthermore, the motor bracket is provided with a plurality of radiating holes.

Furthermore, a high-temperature-resistant bonding layer is arranged between the inner wall of the motor support and the stator.

Further, the stator is an integrally arranged stator.

Has the advantages that: compared with the prior art, the utility model: this motor structure utilizes novel fixed technology, has cancelled the design of penetrating the thick stick screw to structurally cancelled a plurality of penetrating thick stick screw mounted positions on the support, and a plurality of penetrating thick stick screws. Thereby greatly reducing the diameter of the motor and the overall weight of the motor. The motor structure cancels a stator shell, adopts an integrated stator, and is more favorable for the heat dissipation of the stator; meanwhile, the weight of the motor is reduced, and the cost is lower.

Drawings

Fig. 1 is a schematic structural view of a conventional motor in the background art;

FIG. 2 is a schematic view of a micro-motor structure;

fig. 3 is a partial cross-sectional view of a micro-motor structure.

Detailed Description

As shown in fig. 2 and 3, a micro motor structure includes a housing, a stator 2, and a rotor 3; the casing is formed by the installation of the motor support 1 of opposition, and 1 inner wall interference fit of a motor support is partly gone up with to stator 2, and 1 inner wall interference fit of another motor support is partly gone up with the motor support of stator 2, and stator 2 adopts interference fit's mode to realize fixing between them with motor support 1, and the design of penetrating the thick stick screw has been cancelled to this micro motor structure to structurally cancelled a plurality of penetrating the thick stick screw mounted position on the support, and a plurality of penetrating the thick stick screw. Thereby greatly reducing the diameter of the motor and the overall weight of the motor

In order to avoid the axial sliding of the stator 2 along the motor support 1, the edge of the stator 2 is provided with a first step 4, the inner wall of the motor support 1 is provided with a second step 5 matched with the first step 4, and the first step 4 is matched with the second step 5 to limit the stator 2.

In order to avoid the radial deviation of the rotor 3 of the motor caused by the excessive gap between the rotor 3 and the motor support 1, the motor support 1 is provided with a bearing mounting opening 6, and a rod body of the rotor 3 is embedded into the bearing and the stator 2.

In order to prolong the service life of the motor, the motor needs to dissipate heat, and therefore, the motor bracket 1 is provided with a plurality of heat dissipation ports 7.

In order to further enhance the stability between the motor bracket 1 and the stator 2, a high temperature resistant adhesive layer is arranged between the inner wall of the motor bracket 1 and the stator 2.

Stator 2 is the stator that the integral type set up, and the stator that the integral type set up is favorable to stator 2 heat dissipation more. Meanwhile, the weight of the motor is reduced, and the cost is lower.

Claims

1. A micro motor structure comprises a shell, a stator (2) and a rotor (3); the motor stator is characterized in that the shell is formed by installing opposite motor supports (1), one part of the stator (2) is in interference fit with the inner wall of one motor support (1), and the other part of the stator (2) is in interference fit with the inner wall of the other motor support (1).

2. A miniature motor structure according to claim 1, characterized in that the edge of the stator (2) is provided with a step one (4), and the inner wall of the motor bracket (1) is provided with a step two (5) which is matched with the step one (4).

3. A miniature motor structure according to claim 1, characterized in that the motor bracket (1) is provided with a bearing mounting opening (6), and the shaft body of the rotor (3) is embedded in the bearing and the stator (2).

4. A miniature motor structure as claimed in claim 3, characterized in that the motor support (1) is provided with a plurality of heat dissipating ports (7).

5. A miniature motor structure according to claim 4, characterized in that a high temperature resistant adhesive layer is provided between the inner wall of the motor support (1) and the stator (2).

6. A miniature motor structure according to claim 5, characterized in that the stator (2) is a one-piece stator.