CN213064072U

CN213064072U - Turbofan radiator with flow guiding and noise reducing functions

Info

Publication number: CN213064072U
Application number: CN202021957893.6U
Authority: CN
Inventors: 黄锦亮; 管春吉; 胡君成
Original assignee: Shenzhen Dongweifeng Electronic Technology Co ltd
Current assignee: Shenzhen Dongweifeng Electronic Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-04-27
Anticipated expiration: 2030-09-09

Abstract

The utility model provides a turbofan radiator with flow guiding and noise reducing functions, which comprises a turbofan, wherein the turbofan comprises a shell, fan blades and a flow guiding column, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are buckled to form an accommodating cavity structure, and the fan blades and the flow guiding column are arranged in the accommodating cavity; the lower shell is provided with a through hole, the upper shell is provided with a rotating shaft opposite to the through hole, the fan blade is rotatably connected with the rotating shaft, the flow guide column is arranged at the air outlet side of the fan blade, the flow guide column is of an arc-shaped long strip structure and is provided with a plurality of heels, and the air outlet is divided into a plurality of air channels; the air outlet of the turbofan is provided with the flow guide columns for guiding air at the air outlet, the flow guide columns are separated into 4 air channels, vortex is avoided, and therefore noise is reduced.

Description

Turbofan radiator with flow guiding and noise reducing functions

Technical Field

The utility model relates to a radiator fan technical field especially relates to a turbofan radiator with function of making an uproar falls in water conservancy diversion.

Background

A turbofan, which is called centrifugal fan, is commonly used in the field of heat dissipation of personal computers, and is used to be called a turbofan; the air flow direction of the turbofan is vertical to the rotating shaft, and the air flow direction of the common axial flow fan is parallel to the rotating shaft; compared with the traditional cooling fan, the centrifugal fan can output larger air volume under the condition of smaller space occupation, and the cooling effect is improved; but the processing precision of the fan blades of the centrifugal fan is higher than that of the common fan, and the noise generated when the impeller has dust accumulation or runs at high speed is also higher; with the reduction of the power consumption of a CPU, a CPU turbofan is gradually replaced by a large-caliber low-rotating-speed common axial flow mute fan, but is still frequently used on a high-performance display card, particularly a public display card radiator.

The existing mini desktop computer uses a turbofan radiator, because of the influence of space, when a turbofan rotor runs, air moves along a designed involute trajectory line in the turbofan and collides with the inner wall of a pipeline; one part of the sound wave continuously moves forwards along the two sides of the pipeline respectively, and the other part of the sound wave reflows to form a vortex state, so that the sound pressure level, the outburst rate, the tone, the loudness and the sharpness in acoustics are increased; therefore, a turbine cooling fan with a diversion air duct structure is needed to avoid generating vortex by diverting the air at the air outlet, thereby reducing various noise indexes.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides a turbofan radiator with function of making an uproar falls in water conservancy diversion sets up the water conservancy diversion post through the air outlet position at turbofan and carries out the drainage to the wind of air outlet, separates for 4 wind channels, avoids the production of vortex to reduce the noise.

In order to achieve the above object, the present invention provides a turbofan radiator with flow guiding and noise reducing functions, comprising a turbofan, wherein the turbofan comprises a housing, a fan blade and a flow guiding column, the housing comprises an upper housing and a lower housing, the upper housing and the lower housing are fastened to form an accommodating cavity structure, and the fan blade and the flow guiding column are disposed in the accommodating cavity; the lower shell is provided with a through hole, the upper shell is over against the through hole, a rotating shaft is arranged at the position of the through hole, the fan blades are rotatably connected with the rotating shaft, the flow guide columns are arranged at the air outlet of the fan blades, are of arc-shaped long strip structures and are provided with a plurality of flow guide columns, and divide the air outlet into a plurality of air channels.

Preferably, the method comprises the following steps: the flow guide column comprises an arc edge and a straight edge, the arc edge is arranged close to one end of the fan blade, and the straight edge is arranged far away from one end of the fan blade.

Preferably, the method comprises the following steps: the arc edge is bent towards the opposite direction of the rotation direction of the fan blade, the straight edge is obliquely arranged relative to the side plate of the accommodating cavity, and the straight edges are parallel to each other.

Preferably, the method comprises the following steps: the flow guide column is provided with 3, the flow guide column sets up according to the fixed interval, will the air outlet is equallyd divide into 4 wind channels.

Preferably, the method comprises the following steps: the outer side wall of the lower shell is provided with a plurality of buckling rings, the outer side of the upper shell is provided with convex buckling blocks corresponding to the buckling rings, and the buckling rings are matched with the buckling blocks to fix the upper shell and the lower shell together.

Preferably, the method comprises the following steps: the upper shell is further provided with a wiring hole, and the wiring hole is formed in the position, close to the axis of the fan blade, of the upper shell.

Preferably, the method comprises the following steps: the wiring groove is formed in the outer wall of the upper shell, one end of the wiring groove is connected with the wiring hole, and the other end of the wiring groove extends to the outer side wall of the upper shell.

Preferably, the method comprises the following steps: the heat dissipation device is mounted on the lower shell through fixing screws.

Preferably, the method comprises the following steps: the heat dissipation device comprises a heat dissipation shell and heat dissipation fins, wherein the heat dissipation fins are fixedly arranged in the heat dissipation shell, the heat dissipation shell is provided with heat dissipation holes, and the heat dissipation holes are located at one end, close to the through holes, of the heat dissipation shell and form heat dissipation channels together with the through holes.

Preferably, the method comprises the following steps: the radiating fins penetrate through the side wall of the radiating shell to be provided with connecting columns, the connecting columns are provided with through connecting holes, the connecting columns penetrate through the connecting holes through connecting long nails, and the radiating fins are fixedly installed on an external component.

The utility model has the advantages that: compared with the prior art, the turbofan radiator with the flow guiding and noise reducing functions comprises a turbofan, wherein the turbofan comprises a shell, fan blades and a flow guiding column, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are buckled to form an accommodating cavity structure, and the fan blades and the flow guiding column are arranged in the accommodating cavity; the lower shell is provided with a through hole, the upper shell is provided with a rotating shaft opposite to the through hole, the fan blade is rotatably connected with the rotating shaft, the flow guide column is arranged at the air outlet side of the fan blade, the flow guide column is of an arc-shaped long strip structure and is provided with a plurality of heels, and the air outlet is divided into a plurality of air channels; the air outlet of the turbofan is provided with the flow guide columns for guiding air at the air outlet, the flow guide columns are separated into 4 air channels, vortex is avoided, and therefore noise is reduced.

Drawings

Fig. 1 is a three-dimensional view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is an exploded view of the present invention;

FIG. 5 is a schematic view of a prior art internal vortex formation;

FIG. 6 is a schematic view of the wind flow formed inside the present invention;

FIG. 7 is a prior art internal fluid analysis reference diagram;

fig. 8 is a reference diagram for internal fluid analysis according to the present invention.

The main element symbols are as follows:

1. a turbo fan; 11. a fan blade; 12. a flow guide column; 121. arc edge; 122. straight sides; 13. an air duct; 14. a lower housing; 141. a through hole; 15. an upper housing; 16. a wiring hole; 17. a wiring slot; 18. buckling rings; 19. buckling blocks; 2. a heat sink; 21. a heat dissipation housing; 22. a heat sink; 221. connecting columns; 3. and (5) connecting the long nails.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

The existing mini desktop computer uses a turbofan radiator, because of the influence of space, when a turbofan rotor runs, air moves along a designed involute trajectory line in the turbofan and collides with the inner wall of a pipeline; one part of the sound wave continuously moves forwards along the two sides of the pipeline respectively, and the other part of the sound wave reflows to form a vortex state, so that the sound pressure level, the outburst rate, the tone, the loudness and the sharpness in acoustics are increased; therefore, a turbine cooling fan with a diversion air duct 13 structure is needed to avoid generating vortex by diverting the air at the air outlet, thereby reducing various noise indexes.

Specifically, the present invention provides a turbofan heat sink with flow guiding and noise reducing functions, referring to fig. 1-8, the heat sink includes: the turbofan structure comprises a turbofan 1, wherein the turbofan 1 comprises a shell, fan blades 11 and a flow guide column 12, the shell comprises an upper shell 15 and a lower shell 14, the upper shell 15 and the lower shell 14 are buckled to form an accommodating cavity structure, and the fan blades 11 and the flow guide column 12 are arranged in the accommodating cavity; the lower shell 14 is provided with a through hole 141, the upper shell 15 is provided with a rotating shaft opposite to the through hole 141, the fan blades 11 are rotatably connected with the rotating shaft, the flow guide column 12 is arranged at the air outlet side of the fan blades 11, the flow guide column 12 is of an arc-shaped strip-shaped structure and is provided with a plurality of flow guide columns, and the air outlet is divided into a plurality of air channels 13; the design of wind channel 13 of traditional turbofan 1 is single wind channel 13, like this because wind channel 13 is too wide apart from, produce the vortex in wherein easily in the air-out, add guide post 12 and carry out the drainage, guide post 12's arc one end meets with flabellum 11's air-out position, wind is directly separated into a plurality of little wind channels 13 by guide post 12 when producing, the wind current of collision is few like this, the vortex does not have sufficient space to form, wind flows along original direction after guide post 12 drainage, sound pressure level in the acoustics like this, the prominence, the tone, loudness and sharpness all obtain effectual reduction, thereby the noise naturally reduces.

One embodiment mentions: the guide column 12 includes an arc edge 121 and a straight edge 122, the arc edge 121 is disposed at an end close to the fan blade 11, and the straight edge 122 is disposed at an end far from the fan blade 11; the arc edge 121 is bent towards the opposite direction of the rotation direction of the fan blade 11, the straight edge 122 is obliquely arranged relative to the side plate of the accommodating cavity, and the straight edges 122 are parallel to each other; 3 flow guide columns 12 are arranged, the flow guide columns 12 are arranged at intervals according to a fixed interval, and the air outlet is divided into 4 air channels 13; the arc edge 121 is bent in the direction opposite to the rotation direction of the fan blade 11, and aims to directly intercept wind when the wind is formed and enter the air channels 13 divided by different guide columns 12, the straight edges 122 are arranged and are parallel to each other, so that the straight edges 122 can guide the wind entering the air channels 13 to go along straight lines, and the parallel to each other aims to go in the same direction when the wind in each air channel 13 leaves the air channels 13, so that more noises caused by the formation of vortexes are avoided; the guide post 12 mentioned above sets up to 3 but not limited to 3, and any guide post 12 the same with the effect of the utility model discloses the high position how changes of setting up of its shape, all infringes the utility model discloses a claimed scheme.

One embodiment mentions: the outer side wall of the lower shell 14 is provided with a plurality of buckling rings 18, the outer side of the upper shell 15 is provided with a convex buckling block 19 corresponding to the buckling rings 18, and the buckling rings 18 are matched with the buckling block 19 to fix the upper shell 15 and the lower shell 14 together; the upper shell 15 is also provided with a wiring hole 16, and the wiring hole 16 is arranged at the position of the upper shell 15 close to the axis of the fan blade 11; the wire connecting structure further comprises a wire connecting groove 17, wherein the wire connecting groove 17 is formed in the outer wall of the upper shell 15, one end of the wire connecting groove is connected with the wire connecting hole 16, and the other end of the wire connecting groove extends to the outer side wall of the upper shell 15; the casing adopts the lock cooperation of lock ring 18 and lock piece 19, can make casing 15 and the convenient dismantlement of casing 14 down, and convenient clean to set up the aim at of wiring hole 16, wiring groove 17, when the connecting wire was worn out by wiring hole 16, place the connecting wire in wiring groove 17, make the circuit clean and tidy, avoid the connecting wire to be disorderly and have no chapter.

One embodiment mentions: the heat dissipation device 2 is arranged on the lower shell 14 by adopting a fixing screw; the heat dissipation device 2 comprises a heat dissipation shell 21 and a heat dissipation fin 22, wherein the heat dissipation fin 22 is fixedly arranged in the heat dissipation shell 21, the heat dissipation shell 21 is provided with a heat dissipation hole, and the heat dissipation hole is positioned at one end of the heat dissipation shell 21 close to the through hole 141 and forms a heat dissipation channel together with the through hole 141; the radiating fins 22 penetrate through the side wall of the radiating shell 21 to be provided with connecting columns 221, the connecting columns 221 are provided with through connecting holes, the connecting columns 221 penetrate through the connecting holes by adopting connecting long nails 3, and the radiating fins 22 are fixedly arranged on an external component; the heat dissipation device 2 is mainly in direct contact with the components to be dissipated through the heat dissipation fins 22, transfers heat to the heat dissipation channel through the three fins, and discharges the heat from the turbofan 1, so that the heat dissipation effect is excellent.

One embodiment mentions: the radian of the arc edge 121 of the flow guiding column 12 is gradually increased from the foremost end close to the fan blade 11 to generate hot air to the rearmost end, because the angle of the wind generated when the fan blade 11 rotates to different positions is increasingly large, the set radian is adapted to the radian, so that the wind can enter the flow guiding column 12 more smoothly, and the noise can be avoided.

The working principle of the utility model is described below with the attached drawings:

when the cooling device is used, the connecting column 221 on the cooling fin 22 is connected to a component to be cooled through the connecting spike 3, at the moment, the cooling fin 22 is tightly attached to the component to be cooled and conducts heat, the heat is absorbed by the turbofan 1 when being conducted to a heat dissipation hole through the cooling fin 22, and the heat is exhausted from an air outlet through the rotation of the turbofan 1; the hot air is intercepted by the arc edge 121 of the guide column 12 arranged at the air outlet and enters the 4 air channels 13 respectively, and is finally discharged through the guide of the air channels 13, in the process, the hot air is guided by the guide column 12, the position which can generate a turbine originally does not generate a vortex, but is discharged linearly along the direction guided by the guide column 12, and the sound pressure level, the outburst rate, the tone, the loudness and the sharpness in the acoustics are effectively reduced by the smoothly discharged hot air, so that the noise is naturally reduced.

The utility model has the advantages that:

1. the air outlet of the turbofan is provided with the flow guide columns for guiding air at the air outlet, the flow guide columns are separated into 4 air channels, vortex is avoided, and therefore noise is reduced.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A turbofan radiator with flow guiding and noise reducing functions is characterized by comprising a turbofan, wherein the turbofan comprises a shell, fan blades and flow guiding columns, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are buckled to form an accommodating cavity structure, and the fan blades and the flow guiding columns are arranged in the accommodating cavity; the lower shell is provided with a through hole, the upper shell is over against the through hole, a rotating shaft is arranged at the position of the through hole, the fan blades are rotatably connected with the rotating shaft, the flow guide columns are arranged at the air outlet of the fan blades, are of arc-shaped long strip structures and are provided with a plurality of flow guide columns, and divide the air outlet into a plurality of air channels.

2. The turbofan radiator of claim 1 wherein the flow guiding post comprises an arc edge and a straight edge, the arc edge is disposed near an end of the fan blade, and the straight edge is disposed far from the end of the fan blade.

3. The turbofan heat sink with airflow directing and noise reducing functions of claim 2 wherein the arc edges are curved in a direction opposite to a rotation direction of the fan blades, the straight edges are disposed obliquely with respect to the side plates of the receiving cavity, and the straight edges are parallel to each other.

4. The turbofan radiator with flow guiding and noise reducing functions of claim 1 wherein the flow guiding columns are provided with 3 flow guiding columns, the flow guiding columns are arranged at intervals with fixed intervals, and the air outlet is divided into 4 air channels.

5. The turbofan radiator with airflow guidance and noise reduction functions according to claim 1, wherein a plurality of fastening rings are disposed on an outer side wall of the lower case, a protruding fastening block is disposed on an outer side of the upper case corresponding to the fastening rings, and the fastening rings are adapted to the fastening blocks to fix the upper case and the lower case together.

6. The turbofan radiator with flow guiding and noise reducing functions of claim 1 wherein the upper housing further defines a wire connection hole, the wire connection hole is disposed at a position of the upper housing near an axial center of the fan blades.

7. The turbofan radiator with flow guiding and noise reducing functions according to claim 6 further comprising a wiring slot opened on an outer wall of the upper case and having one end connected to the wiring hole and the other end extending toward an outer side wall of the upper case.

8. The turbofan heat sink with airflow directing and noise reducing functions of claim 1 further comprising a heat sink mounted to the lower housing with set screws.

9. The turbofan heat sink with airflow guidance and noise reduction functions of claim 8 wherein the heat dissipation device comprises a heat dissipation housing and a heat dissipation plate, the heat dissipation plate is fixedly mounted in the heat dissipation housing, the heat dissipation housing is provided with heat dissipation holes, and the heat dissipation holes are located at one end of the heat dissipation housing close to the through holes and form heat dissipation channels together with the through holes.

10. The turbofan heat sink with airflow diversion and noise reduction functions of claim 9 wherein the heat sink has a connection post through the side wall of the heat sink housing, the connection post having a through connection hole, the connection post passing through the connection hole with a connection spike to fixedly mount the heat sink on an external component.