CN104704247A - Ventilation noise reduction device and cabinet with same - Google Patents
Ventilation noise reduction device and cabinet with same Download PDFInfo
- Publication number
- CN104704247A CN104704247A CN201380005577.5A CN201380005577A CN104704247A CN 104704247 A CN104704247 A CN 104704247A CN 201380005577 A CN201380005577 A CN 201380005577A CN 104704247 A CN104704247 A CN 104704247A
- Authority
- CN
- China
- Prior art keywords
- noise
- submounts
- reduction fan
- fan
- denoising device
- 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
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Classifications
-
- 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
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a ventilation noise reduction device. The ventilation noise reduction device comprises a main support, sub-supports, and a sound absorption material. The main support is used to directly face the air outlet of a to-be-noise-reduced fan. The main support is provided with a plurality of ventilation openings. Each ventilation opening is used for aligning the air outlet of the to-be-noise-reduced fan. The sub-supports are in the ventilation openings. The sub-supports are used to align the hub of the to-be-noise-reduced fan. A sound absorption material is filled between the main support and the fan frame of the to-be-noise-reduced fan. A sound absorption material is filled between the sub-support and the hub of the to-be-noise-reduced fan. Through arranging the ventilation noise reduction device on the air outlet of the to-be-noise-reduced fan, the device performs noise reduction on fixed points aimed at the part of the fan which has relatively high noise, so that miniaturization of the device is beneficial. In addition, the invention also provides a cabinet using the ventilation noise reduction device.
Description
Technical field
The present invention relates to noise reduction field, particularly relate to a kind of denoising device and there is the rack of this ventilation denoising device of ventilating.
Background technique
Along with the enhancing of growth in the living standard and environmental consciousness, people require more and more higher to noise of equipment, and noise of equipment not only becomes a large condition of produce market access, and becomes a key factor of product competition difference.
Along with electronic equipment (information technoloy equipment, communications equipment etc.) heating value is increasing, for ensureing equipment safety operation, need to carry out cooling temperature control to it.The type of cooling the most frequently used is at present exactly drive cooling by air movement device (as fan etc.), and what cooling unit more and more pushed ahead vigorously and brought is that noise of equipment constantly increases, and noise exceeds standard and even affects the market access by producing harmful effect to outside.
Simultaneously because equipment constantly requires miniaturization, more and more stricter to the restriction in space, and then relevant external noise reduction measure is more difficult to carry out owing to not having space.In addition, in view of the noise of a system decides primarily of some points that noise is higher, thus carrying out noise reduction process for some points that noise of equipment is higher will be a very effective method.Therefore how to utilize existing space and effective control noises is a difficult point and bottleneck point.
The indoor cooling machine cabinet framework of existing communication apparatus has quite a few to be that interpolation frame fan top is installed, and enclosure top noise is generally higher, but noise reduction process is not done in existing equipment top.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of denoising device and have the rack of this ventilation denoising device, in order to treat noise-reduction fan fixed point noise reduction, so be conducive to device miniaturization of ventilating.
On the one hand, a kind of ventilation denoising device is provided, described ventilation denoising device comprises master bracket, submounts and sound-absorbing material, described master bracket is used for just treating that the exhaust outlet of noise-reduction fan is arranged to one, multiple ventilated port offered by described master bracket, each described ventilated port is respectively used to the exhaust outlet treating noise-reduction fan described in alignment, described submounts is positioned at described ventilated port, described submounts is for treating the wheel hub of noise-reduction fan described in aliging, described sound-absorbing material is filled between described master bracket and the described fan frame treating noise-reduction fan, described sound-absorbing material is filled between described submounts and the described wheel hub treating noise-reduction fan.
In the implementation that the first is possible, with described, the bore of described ventilated port treats that the flabellum external diameter of noise-reduction fan is equal, with described, the external diameter of described submounts treats that the hub outside diameter of noise-reduction fan is equal.
In the implementation that the second is possible, described master bracket and submounts are made by Sheet Metal Part.
In the implementation that the third is possible, connected by link between described master bracket and submounts.
In conjunction with the implementation that the third is possible, in the 4th kind of possible implementation, described link is rod-like structure.
In conjunction with the 4th kind of possible implementation, in the 5th kind of possible implementation, connected between described master bracket and submounts by multiple link, multiple described link is connected between described submounts and described master bracket radially.
On the other hand, provide a kind of rack, described rack comprises housing, treat noise-reduction fan and ventilation denoising device, describedly treat that noise-reduction fan and ventilation denoising device are all contained in described housing, describedly treat that noise-reduction fan is fixed on described enclosure top, described ventilation denoising device is treated between noise-reduction fan and described inner walls described, described ventilation denoising device comprises master bracket, submounts and sound-absorbing material, described master bracket is used for just treating that the exhaust outlet of noise-reduction fan is arranged to described, multiple ventilated port offered by described master bracket, each described ventilated port is respectively used to the exhaust outlet treating noise-reduction fan described in alignment, described submounts is positioned at described ventilated port, described submounts is for treating the wheel hub of noise-reduction fan described in aliging, described sound-absorbing material is filled between described master bracket and the described fan frame treating noise-reduction fan, described sound-absorbing material is filled between described submounts and the described wheel hub treating noise-reduction fan.
In the implementation that the first is possible, with described, the bore of described ventilated port treats that the flabellum external diameter of noise-reduction fan is equal, with described, the external diameter of described submounts treats that the hub outside diameter of noise-reduction fan is equal.
In the implementation that the second is possible, described master bracket and submounts are made by Sheet Metal Part.
In the implementation that the third is possible, connected by link between described master bracket and submounts.
The embodiment of the present invention by treating that the exhaust outlet place of noise-reduction fan arranges ventilation denoising device, for treating that noise-reduction fan is that noise higher part is divided and carried out fixed point noise reduction, thus has the miniaturization utilizing equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of rack provided by the invention;
Fig. 2 is the schematic diagram of the ventilation denoising device of the rack of Fig. 1;
Fig. 3 is the schematic diagram treating noise-reduction fan of the rack of Fig. 1;
Fig. 4 is the scheme of installation of the ventilation denoising device of Fig. 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The ventilation denoising device that the embodiment of the present invention provides due to be treat noise-reduction fan fixed point noise reduction, so be conducive to device miniaturization.
Referring to Fig. 1, is a kind of rack 100 that first embodiment of the invention provides.This rack 100 comprises housing 10, treats noise-reduction fan 20 and ventilation denoising device 30.Described rack 100 is in cuboid.Describedly treat that noise-reduction fan 20 and ventilation denoising device 30 are all contained in described housing 10, described in treat that noise-reduction fan 20 is fixed on described rack 100 top, described ventilation denoising device 30 is treated between noise-reduction fan 20 and described housing 10 inwall described.In figure, arrow is the flow direction of air in described rack 100.Certainly, in other embodiments, described ventilation denoising device 30 also can be installed on other and have on the equipment of fan, such as, on computer, household electrical appliances or portable equipment.
In present embodiment, described rack 100 comprise multiple described in treat noise-reduction fan 20.Refer to Fig. 2, described in multiple, treat that noise-reduction fan 20 is fixed on a framework 9.Treat described in each that noise-reduction fan 20 comprises fan frame 21, flabellum 22, wheel hub 23 and motor (not shown).Described flabellum 22, wheel hub 23 and motor are arranged in described fan frame 21.Described fan frame 21 comprises exhaust outlet 21a.Particularly, described fan frame 21 is rectangle frame.Described wheel hub 23 is arranged on described motor, and described flabellum 22 is arranged around described wheel hub 23.
See also Fig. 3 and Fig. 4, described ventilation denoising device 30 comprises master bracket 31, submounts 32 and sound-absorbing material 33.To described, described master bracket 31 is for just treating that the exhaust outlet 21a of noise-reduction fan 20 is arranged.Multiple ventilated port 31a offered by described master bracket 31, and each described ventilated port 31a is respectively used to the exhaust outlet 21a treating noise-reduction fan 21 described in alignment.Described sound-absorbing material 33 is filled, for treating that noise-reduction fan 20 carries out overall noise reduction to described between described master bracket 31 and the described fan frame 21 treating noise-reduction fan 20.In present embodiment, described master bracket 31 is the rectangular box structures be made up of Sheet Metal Part.Described master bracket 31 can be fixed on described housing 10 inwall by modes such as screw, buckle or welding.With described, the bore of described ventilated port 31a treats that flabellum 22 external diameter of noise-reduction fan 20 is equal.Described sound-absorbing material 33 is filled in described master bracket 31.It is fixing that described sound-absorbing material 33 can pass through the encapsulation of screw, buckle or other structural members.Described sound-absorbing material 33 can be the structure with acoustical absorptivity, such as Helmholtz resonator, sound absorbent perforated structure, resonance sound-absorbing structure for sheet and conformable material etc., described sound-absorbing material 33 also can be porous sound-absorbing material, comprise foam class, as polyurethane foam, melamine foamed plastic etc., fiber, as polyester fibre, centrifugally glass-wool etc.Certainly, in other modes, according to condition, described in the bore of described ventilated port 31a also can be greater than or less than, treat the external diameter of the flabellum 22 of noise-reduction fan 20.
Described submounts 32 is positioned at described ventilated port 31a, and described submounts 32 is for treating the wheel hub 23 of noise-reduction fan 20 described in aliging.Filling described sound-absorbing material 33 between described submounts 32 and the described wheel hub 23 treating noise-reduction fan 20, for treating the noise of noise-reduction fan 20 described in reducing further, noise reduction being carried out to described motor.In present embodiment, with described, the external diameter of described submounts 32 treats that wheel hub 23 external diameter of noise-reduction fan 20 is equal.Described submounts 32 is the disc structures relative with two of described wheel hub 23 mating shapes be made up of Sheet Metal Part.Conveniently manufacture, described submounts 32 is structure as a whole with described master bracket 31.Described submounts 32 is directly by described master bracket 31 upper punch hole forming.Connected by link 34 between described master bracket 31 and submounts 32.Described link 34 is rod-like structure, and multiple described link 34 is connected between described submounts 32 and described master bracket 31 radially.Particularly, the mode symmetric arrays of multiple described links 34 in spoke.Certainly, in other embodiments, described submounts 32 also directly can be fixed on described housing 10 inwall by the structure such as screw, buckle, thus omits described link 34.Described submounts 32 and the described described sound-absorbing material 33 treating to fill between the wheel hub 23 of noise-reduction fan 20 are in cylindric.
By showing the actual assessment test of described rack 100, after installing described ventilation denoising device 30 additional, under not influential system heat dispersal situations, described rack 100 top single-point noise reduces by 3 ~ 5dBA (sound pressure level).
The embodiment of the present invention by treating that the exhaust outlet place of noise-reduction fan arranges ventilation denoising device, for treating that noise-reduction fan is that noise higher part is divided and carried out fixed point noise reduction, thus has the miniaturization utilizing equipment.
Last it is noted that above embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (10)
1. a ventilation denoising device, described ventilation denoising device comprises master bracket, submounts and sound-absorbing material, described master bracket is used for just treating that the exhaust outlet of noise-reduction fan is arranged to one, multiple ventilated port offered by described master bracket, each described ventilated port is respectively used to the exhaust outlet treating noise-reduction fan described in alignment, described submounts is positioned at described ventilated port, described submounts is for treating the wheel hub of noise-reduction fan described in aliging, described sound-absorbing material is filled between described master bracket and the described fan frame treating noise-reduction fan, described sound-absorbing material is filled between described submounts and the described wheel hub treating noise-reduction fan.
2. ventilate denoising device as claimed in claim 1, it is characterized in that, with described, the bore of described ventilated port treats that the flabellum external diameter of noise-reduction fan is equal, with described, the external diameter of described submounts treats that the hub outside diameter of noise-reduction fan is equal.
3. ventilate denoising device as claimed in claim 1, and it is characterized in that, described master bracket and submounts are made by Sheet Metal Part.
4. ventilate denoising device as claimed in claim 1, it is characterized in that, connected between described master bracket and submounts by link.
5. ventilate denoising device as claimed in claim 4, it is characterized in that, described link is rod-like structure.
6. ventilate denoising device as claimed in claim 5, it is characterized in that, connected between described master bracket and submounts by multiple link, and multiple described link is connected between described submounts and described master bracket radially.
7. a rack, described rack comprises housing, treat noise-reduction fan and ventilation denoising device, describedly treat that noise-reduction fan and ventilation denoising device are all contained in described housing, describedly treat that noise-reduction fan is fixed on described enclosure top, described ventilation denoising device is treated between noise-reduction fan and described inner walls described, described ventilation denoising device comprises master bracket, submounts and sound-absorbing material, described master bracket is used for just treating that the exhaust outlet of noise-reduction fan is arranged to described, multiple ventilated port offered by described master bracket, each described ventilated port is respectively used to the exhaust outlet treating noise-reduction fan described in alignment, described submounts is positioned at described ventilated port, described submounts is for treating the wheel hub of noise-reduction fan described in aliging, described sound-absorbing material is filled between described master bracket and the described fan frame treating noise-reduction fan, described sound-absorbing material is filled between described submounts and the described wheel hub treating noise-reduction fan.
8. ventilate denoising device as claimed in claim 1, it is characterized in that, with described, the bore of described ventilated port treats that the flabellum external diameter of noise-reduction fan is equal, with described, the external diameter of described submounts treats that the hub outside diameter of noise-reduction fan is equal.
9. ventilate denoising device as claimed in claim 1, and it is characterized in that, described master bracket and submounts are made by Sheet Metal Part.
10. ventilate denoising device as claimed in claim 1, it is characterized in that, connected between described master bracket and submounts by link.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013074990 | 2013-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104704247A true CN104704247A (en) | 2015-06-10 |
Family
ID=53350105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380005577.5A Pending CN104704247A (en) | 2013-04-28 | 2013-04-28 | Ventilation noise reduction device and cabinet with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104704247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185369A (en) * | 2015-08-19 | 2015-12-23 | 哈尔滨城林科技股份有限公司 | Sound attenuating system for low-noise integrated equipment cabinet used for communication |
| WO2018153318A1 (en) * | 2017-02-22 | 2018-08-30 | 中兴通讯股份有限公司 | Noise-reducing device and cabinet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2714854Y (en) * | 2004-05-18 | 2005-08-03 | 常熟市鼓风机有限公司 | Bidirectional propeller fan |
| JP2008263134A (en) * | 2007-04-13 | 2008-10-30 | Kawamura Electric Inc | Cabinet |
| CN101988524A (en) * | 2009-07-31 | 2011-03-23 | 华为技术有限公司 | Silencing device |
-
2013
- 2013-04-28 CN CN201380005577.5A patent/CN104704247A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2714854Y (en) * | 2004-05-18 | 2005-08-03 | 常熟市鼓风机有限公司 | Bidirectional propeller fan |
| JP2008263134A (en) * | 2007-04-13 | 2008-10-30 | Kawamura Electric Inc | Cabinet |
| CN101988524A (en) * | 2009-07-31 | 2011-03-23 | 华为技术有限公司 | Silencing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185369A (en) * | 2015-08-19 | 2015-12-23 | 哈尔滨城林科技股份有限公司 | Sound attenuating system for low-noise integrated equipment cabinet used for communication |
| WO2018153318A1 (en) * | 2017-02-22 | 2018-08-30 | 中兴通讯股份有限公司 | Noise-reducing device and cabinet |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |