CN111828394A - Fan frame structure - Google Patents
Fan frame structure Download PDFInfo
- Publication number
- CN111828394A CN111828394A CN202010629612.2A CN202010629612A CN111828394A CN 111828394 A CN111828394 A CN 111828394A CN 202010629612 A CN202010629612 A CN 202010629612A CN 111828394 A CN111828394 A CN 111828394A
- Authority
- CN
- China
- Prior art keywords
- frame structure
- fan
- fan frame
- outlet
- flow channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000013461 design Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a fan frame structure, which comprises a frame body, a bottom surface, a top surface and a flow channel, wherein the flow channel is arranged between the bottom surface and the top surface, the bottom surface and the top surface are respectively provided with an outlet and an inlet which are communicated with the flow channel, the outlet is provided with an outlet edge, the outlet edge is provided with a plurality of grooves which are communicated with the flow channel, and the problem of noise generated when a fan runs is greatly reduced by means of the structural design of the grooves.
Description
Technical Field
The present invention relates to a fan frame structure, and more particularly, to a fan frame structure capable of greatly reducing noise generated during operation of a fan.
Background
With the rapid development of electronic products toward high performance, high frequency, high speed and light weight, the heating temperature of electronic products is higher and higher, which is likely to cause instability, and affects the reliability and service life of the products.
The principle of the fan generating cooling airflow is not limited to the wing-shaped design of the fan blades on the rotor, the rotor is driven by the motor and the circuit board, so that the rotor rotates at a rated speed, the rotating wing-shaped blades turn to do work to generate thrust to generate cooling airflow, the frame body often generates unnecessary fundamental frequency vibration to derive extra noise when the rotor rotates, and the fan with the common rotating speed is overloaded along with the stricter heat dissipation requirements of a server and network communication equipment, so that the rotating speed of the fan needs to be increased more, and the airflow at the outlet of the fan is turbulent, so that the problem of huge overall noise of the fan is accompanied and needs to be solved.
As described above, the prior art has the following disadvantages:
1. the fan generates huge noise when running at high rotating speed;
2. the fan generates severe vibration when operating.
Therefore, how to solve the above-mentioned problems and disadvantages is a direction in which the inventors of the present invention and related manufacturers engaged in the industry need to research and improve.
Disclosure of Invention
Accordingly, in order to effectively solve the above-described problems, it is a primary object of the present invention to provide a fan housing structure that greatly reduces noise during fan operation.
It is a secondary object of the present invention to provide a fan housing structure that greatly reduces vibration generated during operation of a fan.
To achieve the above object, the present invention provides a fan frame structure, which includes a frame having a bottom surface, a top surface and a flow channel, wherein the flow channel is disposed between the bottom surface and the top surface, the bottom surface and the top surface respectively have an outlet and an inlet communicating with the flow channel, the outlet has an outlet edge, and the outlet edge has a plurality of grooves communicating with the flow channel.
The fan frame structure, wherein: the grooves are arranged around the outlet edge at equal or unequal intervals or staggered intervals.
The fan frame structure, wherein: the outlet edge is a curved included angle surface or an inclined surface.
The fan frame structure, wherein: the shape of the groove is in a strip shape or a triangle shape or an isosceles trapezoid shape.
The fan frame structure, wherein: the grooves are disposed orthogonally or non-orthogonally to the outlet edge.
The fan frame structure, wherein: and a base positioned in the flow passage, the base being connected to the frame via a plurality of connectors and supported at the outlet.
The fan frame structure, wherein: the connecting pieces are vanes or ribs.
The fan frame structure, wherein: a fan wheel is pivoted in the flow channel.
The fan frame structure, wherein: the frame body is provided with an inner side wall facing the flow channel.
The fan frame structure, wherein: the outlet edge is located between or at the junction of the inner side wall and the bottom surface.
Therefore, through the design of the structure of the invention, when the airflow is discharged to the outside of the frame body through the outlet, the turbulent gas at the outlet can contact the air outside the frame body in advance by virtue of the design of the groove arranged at the edge of the outlet, thereby not only reducing the noise generated when the fan operates, but also greatly reducing the vibration generated when the fan operates.
Drawings
FIG. 1 is a perspective view of a first embodiment of a fan frame construction according to the present invention;
FIG. 2 is another perspective view of the first embodiment of the fan frame structure of the present invention;
FIG. 3 is a perspective view of a second embodiment of a fan frame construction of the present invention;
FIG. 4 is a perspective view of a third embodiment of a fan frame construction of the present invention;
FIG. 5 is a perspective view of a fourth embodiment of a fan frame construction of the present invention;
fig. 6 is a perspective view of a fifth embodiment of the fan frame structure of the present invention.
Description of reference numerals: a fan frame structure 2; a bottom surface 20; a top surface 21; a flow passage 22; an inner side wall 23; an outlet 24; an outlet edge 240; an inlet 25; a bevel 26; a frame 27; a groove 3; a base 4; a connecting member 40; and a fan wheel 5.
Detailed Description
The above objects, together with the structural and functional features thereof, are accomplished by the preferred embodiments according to the accompanying drawings.
Referring to fig. 1 and 2, which are perspective views of a fan frame structure of the present invention, as shown in the figure, a fan frame structure 2 includes a frame 27, the frame 27 has a bottom surface 20 and a top surface 21, and a flow channel 22, the flow channel 22 is disposed between the bottom surface 20 and the top surface 21, the flow channel 22 faces an inner sidewall 23 of the frame 27, and the bottom surface 20 and the top surface 21 respectively have an outlet 24 and an inlet 25 communicating with the flow channel 22.
A fan wheel 5 is correspondingly pivoted in the flow channel 22 of the frame 27, and the structure of the fan wheel 5 is the structure of the existing fan wheel (having a hub, and a plurality of fan blades outwardly extending from the outer periphery of the hub), so that the detailed description thereof is omitted.
In addition, the fan frame structure 2 further has a base 4, the base 4 is connected to the frame 27 via a plurality of connecting members 40 and supported at the outlet 24, the connecting members 40 are illustrated as ribs in the preferred embodiment, but the invention is not limited thereto, and can also be stationary blades or other equivalent.
The outlet 24 of the frame 27 has an outlet edge 240, the outlet edge 240 is a bending included angle surface, that is, the outlet edge 240 is a joint of the bottom surface 20 and the inner side wall 23 of the frame 27, the outlet edge 240 is provided with a plurality of grooves 3 to communicate with the flow channel 22, in this embodiment, each of the grooves 3 is arranged around the outlet edge 240 at equal intervals (i.e., a joint of the bottom surface 20 and the inner side wall 23 of the frame 27), but not limited thereto, the grooves 3 may also be arranged around the outlet edge 240 at unequal intervals (as shown in fig. 3, which is a second embodiment of the present invention), and the grooves 3 of this embodiment and the outlet edge 240 are orthogonal (i.e., the joint of the grooves 3 and the outlet edge 240 forms an included angle of 90 °), or, as shown in fig. 4, the grooves 3 and the outlet edge 240 may be non-orthogonal (i.e. the intersection of the grooves 3 and the outlet edge 240 forms an included angle different from 90 °, which is the third embodiment of the present invention), and the number and size of the grooves 3 may be adjusted according to the user's requirements, as will be described in the foregoing.
Referring to fig. 5, which is a perspective view of a fourth embodiment of the fan frame structure of the present invention, as shown in the figure, the outlet edge 240 in this embodiment is an inclined surface 26, that is, the inclined surface 26 is formed at the junction of the inner sidewall 23 and the bottom surface 20 of the frame 27, the groove 3 is formed on the inclined surface 26, and the shape of the groove 3 is a strip-shaped structure, or a triangle-shaped structure similar to an "isosceles triangle", an "equilateral triangle", or an "isosceles trapezoid", as shown in fig. 6 (which is a fifth embodiment of the present invention), in other words, the shape of the groove 3 can be adjusted and changed according to the needs of the user, so as to achieve the effects of the present invention.
Therefore, with the design of the present invention, when the airflow is discharged to the outside of the frame 27 through the outlet 24, the design of the groove 3 formed at the outlet edge 240 can make the turbulent air at the outlet 24 contact the air outside the frame 27 in advance, which not only can reduce the noise generated during the operation of the fan, but also can greatly reduce the vibration generated during the operation of the fan.
As described above, the present invention has the following advantages over the prior art:
1. greatly reducing the noise of the fan when the fan runs at high rotating speed;
2. greatly reduce the vibration generated when the fan runs.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A fan frame structure, comprising:
the frame body is provided with a bottom surface, a top surface and a flow channel, the flow channel is arranged between the bottom surface and the top surface, the bottom surface and the top surface are respectively provided with an outlet and an inlet which are communicated with the flow channel, wherein the outlet is provided with an outlet edge, and the outlet edge is provided with a plurality of grooves which are communicated with the flow channel.
2. The fan frame structure of claim 1, wherein: the grooves are arranged around the outlet edge at equal or unequal intervals or staggered intervals.
3. The fan frame structure of claim 1, wherein: the outlet edge is a curved included angle surface or an inclined surface.
4. The fan frame structure of claim 1, wherein: the shape of the groove is in a strip shape or a triangle shape or an isosceles trapezoid shape.
5. The fan frame structure of claim 1, wherein: the grooves are disposed orthogonally or non-orthogonally to the outlet edge.
6. The fan frame structure of claim 1, wherein: and a base positioned in the flow passage, the base being connected to the frame via a plurality of connectors and supported at the outlet.
7. The fan frame structure of claim 6, wherein: the connecting pieces are vanes or ribs.
8. The fan frame structure of claim 1, wherein: a fan wheel is pivoted in the flow channel.
9. The fan frame structure of claim 1, wherein: the frame body is provided with an inner side wall facing the flow channel.
10. The fan frame structure of claim 9, wherein: the outlet edge is located between or at the junction of the inner side wall and the bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629612.2A CN111828394A (en) | 2020-07-03 | 2020-07-03 | Fan frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629612.2A CN111828394A (en) | 2020-07-03 | 2020-07-03 | Fan frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111828394A true CN111828394A (en) | 2020-10-27 |
Family
ID=72900079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010629612.2A Pending CN111828394A (en) | 2020-07-03 | 2020-07-03 | Fan frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111828394A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167376A (en) * | 1976-11-19 | 1979-09-11 | Papst-Motoren Kg | Axial fan |
| US4225285A (en) * | 1977-09-22 | 1980-09-30 | Ebm Elektrobau Mulfingen Gmbh & Co. | Axial-flow fan |
| US4482302A (en) * | 1981-01-09 | 1984-11-13 | Etudes Techniques Et Representations Industrielles E.T.R.I. | Axial electric fan of the flat type |
| US4734015A (en) * | 1982-07-24 | 1988-03-29 | Papst-Motoren Gmbh & Co. Kg | Axial-flow fan |
| CN1241004A (en) * | 1998-07-04 | 2000-01-12 | 台达电子工业股份有限公司 | Cooling system for controlling temp of electronic devices and its driver unit |
| US20070122278A1 (en) * | 2005-09-21 | 2007-05-31 | Delta Electronics, Inc. | Heat dissipation apparatus |
| US20080240913A1 (en) * | 2007-04-02 | 2008-10-02 | Forcecon Technology Co., Ltd. | Fan frame with diversion structure |
| CN102066763A (en) * | 2008-06-26 | 2011-05-18 | 山洋电气株式会社 | Axial-flow blower |
| TWM565469U (en) * | 2018-03-27 | 2018-08-11 | 奇鋐科技股份有限公司 | Fan frame with vibration reduction structure and fan thereof |
| US20200191154A1 (en) * | 2018-12-14 | 2020-06-18 | Nanning Fugui Precision Industrial Co., Ltd. | Air shutter and radiating fan including the same |
| CN212337721U (en) * | 2020-07-03 | 2021-01-12 | 奇宏电子(深圳)有限公司 | Fan frame structure |
-
2020
- 2020-07-03 CN CN202010629612.2A patent/CN111828394A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167376A (en) * | 1976-11-19 | 1979-09-11 | Papst-Motoren Kg | Axial fan |
| US4225285A (en) * | 1977-09-22 | 1980-09-30 | Ebm Elektrobau Mulfingen Gmbh & Co. | Axial-flow fan |
| US4482302A (en) * | 1981-01-09 | 1984-11-13 | Etudes Techniques Et Representations Industrielles E.T.R.I. | Axial electric fan of the flat type |
| US4734015A (en) * | 1982-07-24 | 1988-03-29 | Papst-Motoren Gmbh & Co. Kg | Axial-flow fan |
| CN1241004A (en) * | 1998-07-04 | 2000-01-12 | 台达电子工业股份有限公司 | Cooling system for controlling temp of electronic devices and its driver unit |
| US20070122278A1 (en) * | 2005-09-21 | 2007-05-31 | Delta Electronics, Inc. | Heat dissipation apparatus |
| US20080240913A1 (en) * | 2007-04-02 | 2008-10-02 | Forcecon Technology Co., Ltd. | Fan frame with diversion structure |
| CN102066763A (en) * | 2008-06-26 | 2011-05-18 | 山洋电气株式会社 | Axial-flow blower |
| TWM565469U (en) * | 2018-03-27 | 2018-08-11 | 奇鋐科技股份有限公司 | Fan frame with vibration reduction structure and fan thereof |
| US20200191154A1 (en) * | 2018-12-14 | 2020-06-18 | Nanning Fugui Precision Industrial Co., Ltd. | Air shutter and radiating fan including the same |
| CN212337721U (en) * | 2020-07-03 | 2021-01-12 | 奇宏电子(深圳)有限公司 | Fan frame structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |