CN210484119U

CN210484119U - Miniature turbofan structure

Info

Publication number: CN210484119U
Application number: CN201921237911.0U
Authority: CN
Inventors: 郝明刚
Original assignee: Foshan Weilan Photoelectric Technology Co ltd
Current assignee: Foshan Weilan Photoelectric Technology Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-08
Anticipated expiration: 2029-07-30

Abstract

In order to reduce the outer diameter of the turbofan, blades of the turbofan are directly designed right above a stator coil group of the turbofan, so that the outer diameter of the turbofan is the same as the outer diameter of the stator coil group of the turbofan, and the outer diameter is reduced by half compared with the outer diameter of the traditional turbofan. Practice proves that the turbofan produced by the structure has small appearance volume, is suitable for some miniaturized electronic products with low requirement on heat dissipation air quantity, and has wide market application prospect.

Description

Miniature turbofan structure

Technical Field

A miniature turbofan structure relates to a miniature turbofan structure, in particular to a miniature turbofan structure which is designed to be directly above a stator coil group in order to reduce the diameter of a turbofan blade.

Background

The centrifugal fan is commonly known in the field of heat dissipation of electronic products, and the small centrifugal fan is commonly called as a turbofan. The air flow direction of the turbofan is perpendicular to the rotating shaft, and the air flow direction of the common axial flow fan is parallel to the rotating shaft. Compared with a traditional radiating fan, the centrifugal fan can output larger air volume under the condition of smaller space occupation, and the radiating effect is improved. With the development of the present electronic products, the external size of the electronic products is smaller and smaller, which requires the external size of the cooling turbine fan to be smaller and smaller.

In order to maximize the output air volume of a conventional turbofan, the blades of the turbofan are generally designed at the outermost ring of the stator coil set of the turbofan, as shown in fig. 6. The outer diameter of the turbofan is the diameter of the stator coil set plus the width of the blades of the turbofan. When the stator coil assembly of the turbofan cannot be further miniaturized due to technical and cost considerations, the outer diameter of the turbofan cannot be designed to be smaller.

In order to reduce the outer diameter of the turbofan, the blades of the turbofan are designed directly above the stator coil group of the turbofan, so that the outer diameter of the turbofan is the same as the outer diameter of the stator coil group of the turbofan, and the outer diameter is reduced by half compared with the outer diameter of the traditional turbofan, as shown in fig. 5. Practice proves that the turbofan produced by the structure has small appearance volume, is suitable for some miniaturized electronic products with low requirement on heat dissipation air quantity, and has wide market application prospect.

There is no information at home and abroad that the structure of the similar micro turbofan is available.

Disclosure of Invention

The purpose of a miniature turbofan structure is to provide a miniature turbofan structure, which is characterized in that: the miniature turbofan mainly comprises main components such as a fan support, a stator coil group, a magnetic ring and a turbine rotor blade group, wherein the stator coil group is fixedly connected above the fan support, the turbine rotor blade group is coupled above the stator coil group, the turbine rotor blade group comprises a rotor shell and turbine blades, the magnetic ring is fixedly connected in the rotor shell, and the turbine blades are positioned right above the rotor shell.

The outer diameter of the turbofan of the miniature turbofan structure is reduced by half compared with that of the traditional turbofan, is suitable for miniaturized electronic products with low requirements on heat dissipation air quantity, and has wide market application prospect.

Drawings

The following describes a structure of a micro turbofan according to the present invention with reference to the accompanying drawings and embodiments.

FIG. 1 is a top exploded view of a micro turbofan architecture.

Fig. 2 is a bottom exploded view of a micro turbofan structure.

FIG. 3 is a bottom partially assembled view of a micro turbofan configuration.

FIG. 4 is a bottom fully assembled view of a micro turbofan architecture.

FIG. 5 is a schematic view of a micro turbofan configuration for simulating airflow.

Fig. 6 is a schematic view of a conventional turbofan structure.

Detailed Description

A top exploded view of a micro-turbofan architecture is shown in FIG. 1: the magnetic ring type turbine rotor blade assembly is composed of main components such as a turbine rotor blade group 1, a magnetic ring 2, a stator coil group 3 and a fan support 4.

The mechanical relationship is as follows: the stator coil group 3 consists of 4 electromagnetic coils 8, and a fan middle shaft 6 is fixedly connected between the electromagnetic coils; the stator coil group 3 is fixedly connected above the fan support 4, the turbine rotor blade group 1 consists of a rotor shell 5 and turbine blades 4, and the turbine blades 4 are positioned right above the rotor shell 5; an axial assembly hole 8 is arranged at the center position in the rotor shell 5, the bottom exploded schematic view is shown in figure 2,

when the miniature turbofan structure is assembled, firstly, a magnetic ring 2 is fixedly connected in an inner cavity of a turbine rotor blade group 1, as shown in fig. 3; and then, a fan middle shaft 6 in the middle of the stator coil group 3 is clamped into a shaft center assembling hole 8 in the central position in the rotor shell 5, so that the shaft connection is completed, and the assembly is completed, as shown in fig. 4.

The working principle is as follows:

when the fan with the miniature turbofan structure is used for installation, the fan can be fixedly connected to a required product position through the fan support 4, different shapes of the fan support 4 can be designed according to installation requirements, when the fan with the miniature turbofan structure works, 4 electromagnetic coils 8 on the stator coil group 3 are alternately electrified to generate a magnetic field to drive the magnetic ring 2 to rotate, the magnetic ring 2 is fixedly connected to the inner cavity of the turbine rotor blade group 1, so that the turbine rotor blade group 1 rotates at a high speed around a fan middle shaft 6 in the middle of the stator coil group 3, the turbine blades 4 on the turbine rotor blade group 1 drive peripheral airflow to flow in a direction perpendicular to a rotating shaft, and an airflow simulation schematic diagram is shown in fig. 5.

Claims

1. A miniature turbofan structure is characterized in that: the miniature turbofan mainly comprises a fan support, a stator coil group, a magnetic ring and a turbine rotor blade group, wherein the stator coil group is fixedly connected above the fan support, the turbine rotor blade group is coupled above the stator coil group, the turbine rotor blade group comprises a rotor shell and turbine blades, the magnetic ring is fixedly connected in the rotor shell, and the turbine blades are positioned right above the rotor shell.