CN112983852B

CN112983852B - Fan blade, fan assembly, electronic equipment and manufacturing method of fan assembly

Info

Publication number: CN112983852B
Application number: CN202110300623.0A
Authority: CN
Inventors: 杨帆
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2022-05-31
Anticipated expiration: 2041-03-22
Also published as: CN112983852A

Abstract

The application discloses fan blade, fan subassembly, electronic equipment and fan subassembly's manufacturing method, wherein, the fan blade includes: the disk body, the disk body has a plurality of holes, the both sides quotation of disk body passes through the hole communicates with each other, the angle of arranging in hole is a plurality of, the disk body can rotate around its central axis, along with the disk body rotates, the hole can guide the air current by one side of disk body flows to the opposite side. During operation, whole disk body rotates, and the pivoted in-process, gaseous guide through the hole of different angles is circulated to the opposite side by one side of disk body, plays the radiating effect of blowing, and the fan blade adopts a disk body structure that has the hole of a plurality of angles difference, compares in current many flabellums axial fan, has the flabellum effect that is close to the angle not equalling completely, has effectively reduced the fan noise, and does not have flabellum doubling of frequency noise nearly.

Description

Fan blade, fan assembly, electronic equipment and manufacturing method of fan assembly

Technical Field

The present disclosure relates to electronic devices, and particularly to a fan blade. The invention also relates to a fan component containing the fan blade and a manufacturing method thereof. The invention also relates to an electronic device comprising the fan assembly.

Background

The existing fan adopts a design of a plurality of fan blades, flowing air is mutually interfered and is rubbed with surrounding objects, the blades separate air flow, pulsating force of periodic air supply and the like all generate noise. The faster the air velocity, the more turbulent the flow, and the more wind noise, and the more accelerated the velocity. At present, the fan noise is mainly solved by adopting unequal-angle fan blades and optimizing the shape of the fan blades, but the fan noise cannot be effectively improved, and the larger fan blade frequency doubling noise exists.

Disclosure of Invention

The application provides the following technical scheme:

a fan blade, comprising:

the disk body, the disk body has a plurality of holes, the both sides quotation of disk body passes through the hole communicates with each other, the angle of arranging in hole is a plurality of, the disk body can rotate around its central axis, along with the disk body rotates, the hole can guide the air current by one side of disk body flows to the opposite side.

Preferably, in the fan blade described above, the pores are arranged in the disk body in a porous sponge form.

Preferably, in the fan blade, the porosity of the disk body increases gradually from inside to outside in the radial direction of the disk body, and the wall thickness of the pores decreases gradually.

Preferably, in the fan blade, the aperture of the aperture gradually increases from inside to outside in the radial direction of the disk body.

Preferably, in the fan blade, the disk body is of an integrally molded structure or a split combination structure.

Preferably, in the fan blade described above, the disk is an annular disk.

The present application further provides a fan assembly comprising a housing, fan blades, and a power component; the fan blade is as any one above, the fan blade is rotationally arranged in the shell, and the power component is in transmission connection with the fan blade.

Preferably, in the above fan assembly, the power part includes:

the motor shell is fixed at the central axis position of the fan blade disc body;

the annular magnet is fixed at the central axis of the disc body and sleeved on the periphery of the motor shell;

and the motor is in transmission connection with the motor shell.

The application also provides electronic equipment, which comprises an equipment body and the fan assembly, wherein the fan assembly is arranged in the equipment body, and the fan assembly is the fan assembly.

The application also provides a manufacturing method of the fan assembly, which comprises the following steps:

s100, preparing a disk-shaped blank with pores according to a preset porosity distribution rule and a preset pore size distribution rule;

s200, cutting the disc-shaped blank to obtain an annular disc body;

s300, shaping the annular disc body in a shaping mold;

s400, assembling and fixing a power part in a central hole of the annular disc body in the shaping mold;

s500, the annular disc body and the power component which are assembled and fixed into a whole are installed in a shell, and the fan assembly is obtained.

The application provides a fan blade includes the disk body, and the disk body has a plurality of holes, and the both sides quotation of disk body communicates with each other through the hole, and the angle of arranging of these holes is a plurality of, and the disk body can rotate around its central axis, rotates along with the disk body, and the hole can guide the air current to flow to the opposite side by one side of disk body. During operation, whole disk body rotates, and the pivoted in-process, gaseous guide through the hole of different angles is circulated to the opposite side by one side of disk body, plays the radiating effect of blowing, and the fan blade adopts a disk body structure that has the hole of a plurality of angles difference, compares in current many flabellums axial fan, has the flabellum effect that is close to the angle not equalling completely, has effectively reduced the fan noise, and does not have flabellum doubling of frequency noise nearly.

The application provides a fan unit spare includes casing, power part and fan blade, and wherein, fan blade adopts the fan blade in this application, consequently compares in current many flabellums axial fan, has the flabellum effect of nearly not equidistance angle totally, has effectively reduced the fan noise, and does not have flabellum doubling of frequency noise nearly.

The application provides an electronic equipment has adopted the fan assembly in this application, consequently, can effectively reduce the fan noise, and there is no flabellum doubling of frequency noise almost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a fan blade according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fan assembly according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an internal structure of a fan assembly according to an embodiment of the present invention.

Wherein, 1 is a disc body, 2 is a shell, 21 is an opening, and 3 is a motor shell.

Detailed Description

The core of the application is to provide the fan blade, and the noise of the fan is reduced.

The application also provides a fan component containing the fan blade, and the noise of the fan is reduced.

The application also provides an electronic device comprising the fan assembly, and noise is reduced.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 3, an embodiment of the present application provides a fan blade, which includes a disk body 1, where the disk body 1 has a plurality of apertures, two side disk surfaces of the disk body 1 are communicated with each other through the apertures, and the apertures are arranged at a plurality of angles, and the disk body can rotate around a central axis of the disk body 1, and as the disk body 1 rotates, the apertures can guide an airflow from one side of the disk body 1 to the other side.

During operation, whole disk body 1 rotates, and the pivoted in-process, gaseous guide through the hole of different angles is circulated to the opposite side by one side of disk body 1, plays the radiating effect of blowing, and the whole disk body structure that adopts a hole that has a plurality of angles difference of fan blade, compares in current many flabellum axial fan, has the flabellum effect that is close to the angle not equalling completely, has effectively reduced the fan noise, and does not have flabellum doubling of frequency noise nearly.

Further, in this embodiment, the pores are arranged on the tray body 1 in a porous sponge form, so that the arrangement angles of the pores are further different, and the frequency doubling noise of the fan blade is further reduced. And adopt the disk body 1 that the hole is the form of porous sponge and arranges, the fan blade that forms, its PQ curve that reflects fan performance is close with the PQ curve of current multi-blade axial fan, and the PQ curve is the relation between wind pressure and the amount of wind, and it can be seen that the fan blade in this application has effectively reduced the noise on the basis of having satisfied fan amount of wind and wind pressure performance demand.

Of course, the apertures of the tray body 1 may be arranged in other ways as long as the arrangement angles of the apertures are as different as possible.

As an optimization, the tray body 1 may be made of metal, and the metal having pores in a porous sponge form has a structure similar to that of the foam metal, and may be manufactured by using the same manufacturing principle as the foam metal or may be formed by using a 3D printing technology. Of course, the material of the tray body can also be one or any combination of plastic and wood.

Further, in the present embodiment, the porosity of the disk body 1 is gradually increased from the inside to the outside in the radial direction of the disk body 1. The porosity is the percentage of the volume of pores in the block material to the total volume of the material in a natural state, and because the fan blades are in a disk body structure with pores, and the disk body 1 rotates around a central axis, the porosity of the position close to the central axis of the disk body 1 is smaller, and the porosity of the position far away from the central axis of the disk body 1 is larger, so that the structural strength of the disk body 1 can be improved, and meanwhile, the ventilation performance of the fan is improved.

Further, in the present embodiment, the pore diameter of the pores gradually increases from the inside to the outside in the radial direction of the disk body 1. Because the disk body 1 rotates around the central axis, therefore, the aperture of the hole close to the central axis of the disk body 1 is smaller, and the aperture of the hole far away from the central axis of the disk body is larger, so the structural strength of the disk body 1 is further improved, and the ventilation performance of the fan is improved.

Further, in the present embodiment, the wall thickness of the aperture is gradually reduced from the inside to the outside in the radial direction of the disk body 1. Because the disk body 1 rotates around the central axis, the wall thickness between the holes close to the central axis of the disk body 1 is thicker, and the wall thickness between the holes far away from the central axis of the disk body 1 is thinner, so that the structural strength of the disk body 1 is further improved.

In this embodiment, the tray body 1 is an integrally formed structure or a split combination structure. When the tray body 1 is an integrally formed structure, the structural strength of the tray body 1 is high, and the tray body 1 can be made of the same material. When the disk body 1 is a split combined structure, the disk body 1 can be formed by enclosing a plurality of fan-shaped structures, or formed by sleeving a plurality of coaxial annular split bodies, or formed by combining split bodies in other shapes, so that one disk body 1 can be made of different materials.

Preferably, in the present embodiment, the thickness of the tray body 1 is 1mm to 10mm, specifically, 3mm, 5mm, 7mm, and the like, and the thickness of the tray body 1 is determined according to the size of the fan.

As shown in fig. 1, in the present embodiment, the disk body 1 is a ring-shaped disk body, and a central hole of the ring-shaped disk body facilitates installation with an external member, such as a power unit. Of course, the tray body 1 may also be a tray body structure with no hole in the center.

Preferably, the outer circumference of the disk body 1 is circular, triangular, polygonal, saw-toothed or wavy, as long as rotation around the central axis can be achieved.

In this embodiment, the disc surface of the disc body 1 is a plane surface, a curved surface, a zigzag surface or a corrugated surface. Preferably flat to reduce drag during rotation. The present invention is not limited to the structure described in the present embodiment as long as the rotary air blow can be achieved.

As shown in fig. 2 and 3, based on the fan blade described in any of the above embodiments, the present embodiment also provides a fan assembly, which includes a housing 2, a fan blade, and a power component; the fan blades are the fan blades as described in any one of the above embodiments, the fan blades are rotatably arranged in the shell 2, and the power component is in transmission connection with the fan blades.

The size of the shell 2 of the fan component is determined according to the size of the fan blades, and the thickness direction of the shell 2 can be reduced compared with the existing multi-blade axial flow fan due to the fact that the fan blades are of a disc body structure, so that the whole size of the fan component is reduced, and occupied space is reduced. Because fan subassembly has adopted the fan blade in this application, the fan blade is the disk body structure, and is provided with a plurality of holes that arrange the angle difference on the disk body 1, consequently, compare in current many flabellums axial fan, has the flabellum effect of nearly not equidistance completely, has effectively reduced the fan noise, and does not have flabellum doubling of frequency noise nearly.

The embodiment provides a specific power component, which comprises a motor shell 3, a ring magnet and a motor, wherein the motor shell 3 is fixed at the central axis position of a disc body 1 of a fan blade; the annular magnet is fixed on the central axis of the disc body 1 and sleeved on the periphery of the motor shell 3; the motor is in transmission connection with the motor housing 3. The disc body 1 is supported by the motor housing 3, and the motor is matched with the annular magnet to drive the motor housing 3 and the disc body 1 to rotate together.

The embodiment of the application also provides electronic equipment which comprises an equipment body and a fan assembly, wherein the fan assembly is arranged in the equipment body, and the fan assembly is the fan assembly described in any one of the above embodiments.

During operation, the fan assembly is used for effectively dissipating heat of the heating functional components in the electronic equipment, and noise generated during operation of the fan assembly can be reduced.

The embodiment also provides a manufacturing method of the fan assembly, which comprises the following steps:

step S100, preparing a disk-shaped blank with pores according to a preset porosity distribution rule and a preset pore size distribution rule; the porosity distribution rule and the pore size distribution rule can be one or any combination of the gradually increased porosity, the gradually decreased wall thickness and the gradually increased pore size of the disc body 1 from inside to outside along the radial direction of the disc body 1. The material of the disk-shaped blank can be foam metal, plastic, wood, etc., for example, the disk-shaped blank can be foam metal nickel material.

Step S200, cutting the disc-shaped blank to obtain an annular disc body; the cutting can be linear cutting, laser cutting, water jet cutting or high-pressure air cutting, and the like, as long as an annular disc body meeting the size of the fan blade can be obtained.

Step S300, shaping the annular disc body in a shaping mold; and the technological defects of burrs, edges and the like of the annular disc body are removed through shaping.

Step S400, assembling and fixing the power component in the central hole of the annular disc body in a shaping mold; specifically, the annular disc body is arranged in the shaping grinding tool, the shaping grinding tool can position the annular disc body, the annular magnet is embedded into the central hole of the annular disc body, the motor shell 3 is arranged in the annular magnet, the annular disc body, the annular magnet and the motor shell are tightly attached and fixed, and fixation can be achieved in a bonding mode.

Step S500, the annular disk and the power component assembled and fixed as a whole are put into the housing 2, and the fan assembly is obtained. The housing 2 mainly includes a front housing and a rear housing, and the front housing and the rear housing are combined after the annular disc body and the power component are installed in the front housing or the rear housing.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fan blade, comprising:

2. The fan blade of claim 1, the pores arranged in the disk in a porous sponge form.

3. The fan blade of claim 2, wherein the disk body has a porosity that increases and a wall thickness that decreases from the inside to the outside in a radial direction of the disk body.

4. The fan blade of claim 2, wherein the apertures increase in diameter from the inside to the outside in the radial direction of the disk body.

5. The fan blade of any of claims 1-4, wherein the disk body is an integrally formed structure or a split composite structure.

6. The fan blade of any of claims 1-4, the disk being an annular disk.

7. A fan assembly comprising a housing, fan blades and a power component; the fan blade is the fan blade of any one of claims 1-6, the fan blade is rotationally arranged in the shell, and the power component is in transmission connection with the fan blade.

8. The fan assembly of claim 7, the power component comprising:

and the motor is in transmission connection with the motor shell.

9. An electronic device comprising a device body and a fan assembly provided in the device body, the fan assembly being as claimed in claim 7 or 8.

10. A method of making a fan assembly, comprising:

s100, preparing a disk-shaped blank with pores according to a preset porosity distribution rule and a preset pore size distribution rule; the arrangement angle of the pores is multiple;

s200, cutting the disc-shaped blank to obtain an annular disc body, wherein the annular disc body can rotate around the central axis of the annular disc body, and the air flow can be guided to flow from one side of the annular disc body to the other side of the annular disc body by the holes along with the rotation of the annular disc body;

s300, shaping the annular disc body in a shaping mold;