CN214577842U

CN214577842U - High-speed axial flow fan with plastic air duct and plastic impeller

Info

Publication number: CN214577842U
Application number: CN202120661488.8U
Authority: CN
Inventors: 邵稳
Original assignee: Kunshan Xiangwei Electronic Science & Technology Co ltd
Current assignee: Kunshan Xiangwei Electronic Science & Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-02
Anticipated expiration: 2031-03-31

Abstract

A high-speed axial flow fan with a plastic air duct and a plastic impeller comprises a rotor, a stator, an impeller, a hollow air duct and a stator shell, wherein the rotor is rotatably arranged on the stator, the stator shell is sleeved outside the stator, and the stator shell is fixedly arranged inside the hollow air duct; the impeller is arranged at the front end of the rotor, and meanwhile, the impeller is rotatably arranged at the front port of the hollow air duct through the rotor; the high-speed axial fan with plastic wind channel and plastic impeller of this scheme design, cavity wind channel and impeller all use the plastic material, reduce the whole weight of motor greatly, effectively reduce the processing cost to at the inside stator housing structure that sets up the metal material of the machine tooling of being convenient for in cavity wind channel, circle assembly size precision in the assurance, improve the whole quality of product.

Description

High-speed axial flow fan with plastic air duct and plastic impeller

Technical Field

The utility model belongs to the technical field of high-speed motor, concretely relates to high-speed axial fan with plastic wind channel and plastic impeller.

Background

Fans are required to be installed in electrical appliances such as a dust collector and a blower, and the functions of the electrical appliances are realized by generating air flow through the fans; the conventional fan is also provided with a protective cover outside the motor shell, and a certain distance exists between the protective cover and the motor shell, so that the conventional fan is of a hollow air duct structure; the hollow air duct can ensure the flow of air in the equipment, but the metal structure can increase the overall weight of the fan, and meanwhile, in order to ensure that the equipment can be provided with the fan, the equipment shell is correspondingly enlarged, so that the characteristic of realizing the miniaturization of household appliances cannot be realized; in addition, the metal processing procedures are more, and the processing cost is higher.

Aiming at the problem, the hollow air duct and the impeller which are made of metal materials can be changed into plastic materials, but the metal air duct is directly changed into the plastic air duct, and due to direct injection molding, the accuracy of the inner circle assembling size cannot be achieved, and the plastic materials cannot be machined, so that the product has great defects.

Therefore, there is a need to design a high-speed axial flow fan with a plastic air duct and a plastic impeller to solve the above technical problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a high-speed axial flow fan with a plastic air duct and a plastic impeller.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: a high-speed axial flow fan with a plastic air duct and a plastic impeller comprises a rotor, a stator, an impeller, a hollow air duct and a stator shell, wherein the rotor is rotatably arranged on the stator, the stator shell is sleeved outside the stator, and the stator shell is fixedly arranged inside the hollow air duct; the impeller is installed at the front end of the rotor, and meanwhile, the impeller is rotatably arranged at the front port of the hollow air duct through the rotor.

Preferably, the hollow air duct is formed by injection molding of a plastic material.

Preferably, the blades of the impeller are made of plastic materials through injection molding, and the hub of the impeller is a metal insert.

Preferably, the surface of the stator shell is provided with a limiting step, and a limiting bump corresponding to the limiting step is avoided being arranged in the hollow air duct.

Preferably, the rear end of the stator is provided with a rear end cover, the front end and the rear end of the rotor are respectively provided with a front bearing and a rear bearing, the front bearing is arranged at the front end of the stator shell, and the rear bearing is arranged at the rear end of the rear end cover.

Preferably, the impeller hub is provided with an annular groove.

Because of the application of the technical scheme, compared with the prior art, the utility model the advantage that has as follows:

the high-speed axial fan with plastic wind channel and plastic impeller of this scheme design, cavity wind channel and impeller all use the plastic material, reduce the whole weight of motor greatly, effectively reduce the processing cost to at the inside stator housing structure that sets up the metal material of the machine tooling of being convenient for in cavity wind channel, circle assembly size precision in the assurance, improve the whole quality of product.

Drawings

Fig. 1 is an exploded view of the overall structure of the product.

Fig. 2 is a schematic view of a partial mechanism of a product.

In the above drawings, a rotor 1, a stator 2, an impeller 3, a hollow air duct 4, a stator housing 5, a limiting step 6, a rear end cover 7, a front bearing 8, a rear bearing 9, an impeller hub 10 and blades 11.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1-2. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a high-speed axial flow fan with a plastic air duct and a plastic impeller comprises a rotor 1, a stator 2, an impeller 3, a hollow air duct 4 and a stator housing 5; the hollow air duct 4 is made of plastic materials and is formed by injection molding; the blades 11 of the impeller are made of plastic materials through injection molding, and the impeller hub 10 is a metal insert; the rotor 1 is rotatably arranged on the stator 2, the stator housing 5 is sleeved outside the stator 2, and meanwhile, the stator 2 housing is fixedly arranged inside the hollow air duct 4; the impeller 3 is installed at the front end of the rotor 1, and meanwhile, the impeller 3 is rotatably arranged at the front port of the hollow air duct 4 through the rotor 1; the high-speed axial fan with plastic wind channel and plastic impeller of this scheme design, cavity wind channel 4 and impeller 3 all use the plastic material, reduce the whole weight of motor greatly, effectively reduce the processing cost to at the inside 5 structures of stator shell that set up the metal material of the machining of being convenient for in cavity wind channel 4, circle assembly size precision in the assurance, improve the whole quality of product.

The surface of the stator shell 5 is provided with a limiting step 6, and a limiting bump corresponding to the limiting step 6 is avoided being arranged in the hollow air duct 4; the limiting convex block and the limiting step 6 are matched with each other to play a role in positioning the stator shell 5 in the hollow air duct 4, and the stator shell 5 is prevented from being reversely separated from the air duct due to the action of wind power when the fan impeller 3 rotates at a high speed.

A rear end cover 7 is arranged at the rear end of the stator 2, a front bearing 8 and a rear bearing 9 are respectively arranged at the front end and the rear end of the rotor 1, the front bearing 8 is arranged at the front end of the shell of the stator 2, and the rear bearing 9 is arranged at the rear end of the rear end cover 7; install rear bearing 9 in the rear end of rear end cap 7, when assembling the fan like this, can compress tightly rear end cap 7 earlier then install rear bearing 9, convenient equipment for whole assembling process.

An annular groove is formed in the impeller hub 10; the annular groove can ensure the whole dynamic balance.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a high-speed axial fan with plastic wind channel and plastic impeller which characterized in that: the air conditioner comprises a rotor, a stator, an impeller, a hollow air duct and a stator shell, wherein the rotor is rotatably arranged on the stator, the stator shell is sleeved outside the stator, and the stator shell is fixedly arranged inside the hollow air duct; the impeller is installed at the front end of the rotor, and meanwhile, the impeller is rotatably arranged at the front port of the hollow air duct through the rotor.

2. The high-speed axial flow fan with the plastic air duct and the plastic impeller according to claim 1, wherein: the hollow air duct is formed by injection molding of plastic materials.

3. The high-speed axial flow fan with the plastic air duct and the plastic impeller according to claim 1, wherein: the blade of impeller is plastic material injection moulding, impeller wheel hub is metal insert.

4. The high-speed axial flow fan with the plastic air duct and the plastic impeller according to claim 1, wherein: the surface of the stator shell is provided with a limiting step, and a limiting lug corresponding to the limiting step is avoided being arranged in the hollow air channel.

5. The high-speed axial flow fan with the plastic air duct and the plastic impeller according to claim 1, wherein: the rear end of the stator is provided with a rear end cover, the front end and the rear end of the rotor are respectively provided with a front bearing and a rear bearing, the front bearing is arranged at the front end of the stator shell, and the rear bearing is arranged at the rear end of the rear end cover.

6. The high-speed axial flow fan with the plastic air duct and the plastic impeller according to claim 3, wherein: the impeller hub is provided with an annular groove.