CN101644180A - Noise silencer for construction equipment - Google Patents
Noise silencer for construction equipment Download PDFInfo
- Publication number
- CN101644180A CN101644180A CN200910164758A CN200910164758A CN101644180A CN 101644180 A CN101644180 A CN 101644180A CN 200910164758 A CN200910164758 A CN 200910164758A CN 200910164758 A CN200910164758 A CN 200910164758A CN 101644180 A CN101644180 A CN 101644180A
- Authority
- CN
- China
- Prior art keywords
- engine compartment
- noise
- noise silencer
- suction port
- air
- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/12—Filtering, cooling, or silencing cooling-air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
Abstract
A noise silencer for construction equipment is used to minimize outward propagation of noises generated from an engine room (11). The noise silencer is mounted in air intake (18) and/or discharge openings (19) of an engine room, and includes a frame (12) mounted in the one of the air intake and discharge openings of the engine room, and noise damping members (15) fixed to the frame at uniform intervals, and each including a first member (13), which is disposed inside the engine room in a horizontal direction such that cooling air introduced from outside to inside of the engine room by operation of a cooling fan (20) smoothly flows, and a second member (14), which is integrally formed with the first member and is disposed outside the engine room so as to be inclined upwardly at a predetermined inclination.
Description
The cross reference of related application
The application requires the preference of the korean patent application No.10-2008-0071088 of submission on July 22nd, 2008, and the full content of described application is merged in this literary composition by reference at this.
Technical field
The present invention relates to a kind of noise silencer that is used for construction equipment, described noise silencer is installed in the suction port and/or exhaust port of engine compartment, guiding is introduced into the air-flow in the engine compartment glibly, and can use all-bottom sound and high frequency acoustic absorption material with different sound absorption characteristics to absorb low frequency and high-frequency noise.
More specifically, the present invention relates to a kind of noise silencer that is used for construction equipment, described noise silencer is used for the outside propagation of generation from the noise of engine compartment minimized, and have being used in engine compartment and make the horizontal structure of cooling air flow smoothness and being used to outside engine compartment prevent the leaning structure that noise is directly propagated, can bring into play its function best thus.
At this, cooling air is meant the air that is introduced in the engine compartment, cools off a radiator, also discharges with noise by relief opening then by suction port outside engine compartment under the operation of cooling fan.
Background technique
Usually, the various construction equipments such as excavator are used for the job site.The noise of Chan Shenging is regarded as environmental problem at the construction field (site), thereby strong increasingly to its controll day.Along with the low noise technology that meets the control of European noise becomes focus day by day, there is a kind of trend, that is, close the side door or the engine hood that are installed on the engine compartment in the course of the work, thereby the outside propagation from the noise of engine compartment is minimized.
As shown in Figure 1, traditional noise silencer that is used for construction equipment 5 is installed in the suction port 3 of engine compartment 2, wherein noise suppression member 4 with uniform fixed interval in suction port 3, thereby when motor 1 and cooling fan 6 are driven, absorb and suppress to produce noise from engine compartment 2.
Though not shown in the drawings, noise silencer 5 can be installed in the relief opening 7, under the driving of cooling fan 6, outside engine compartment 2, be introduced in the engine compartment 2 by suction port 3 and then the cooling air of cooling radiator 8 be discharged from by relief opening 7.
In the reference character of not describing as yet, 9 expressions make the silencing apparatus that is discharged to atmosphere from the discharging gas of motor 1, and 10 expressions are connected to motor 1 and hydraulic oil are fed to the oil hydraulic pump of hydraulic actuator (for example oil hydraulic cylinder).
Each noise suppression member 4 has the V-arrangement cross section of symmetry.When motor 1 is driven with cooling fan 6, produce from the noise of engine compartment 2 by with noise suppression member 4 contact and collision is absorbed and shields, promptly be suppressed, make noise suppression member 4 reduce the noise of engine compartment 2 to a certain extent.
Yet, noise suppression member 4 mainly only adopts a kind of acoustic absorption material from the acoustic absorption material with different sound absorption characteristics, particularly, only be to have the acoustic absorption material of higher all-bottom sound absorptivity and have a kind of acoustic absorption material in the acoustic absorption material of higher high frequency acoustic absorptivity.Like this, be used to make generation to have lower noise reduction effect from the low frequency of engine compartment 2 and the noise silencer 5 of high frequency region noise minimizing.
And then, when being driven, outside engine compartment 2, introduces by cooling fan 6 the cooling air flow disturbance V-arrangement noise suppression member 4 in the engine compartment 2, and this causes the cooling performance of engine compartment 2 significantly to reduce.
Summary of the invention
Embodiments of the invention relate to a kind of noise silencer that is used for construction equipment, described noise silencer can reduce generation from engine compartment and outer diffusing noise, and can guide cooling air flow Channel Group moving, thereby keep cooling performance by shape and the structure of optimizing the noise suppression member.
Embodiments of the invention also relate to a kind of noise silencer that is used for construction equipment, low frequency and high-frequency noise that described noise silencer can utilize the low frequency that has different sound absorption characteristics and be attached to each noise suppression member and high frequency acoustic absorption material to reduce engine compartment simultaneously, and realize the function of each noise suppression member thus best.
According to the solution of the present invention, a kind of noise silencer that is used for construction equipment is provided, described noise silencer reduces the noise by the suction port of the engine compartment of construction equipment and exhaust port propagation.Described noise silencer comprises: be installed in the suction port of engine compartment and/or the framework in the exhaust port; With the noise suppression member, it arrives framework with even fixed interval, and each noise suppression member comprises: first member, and its along continuous straight runs is arranged in the engine compartment, and the cooling air flow Channel Group that makes the operation of passing through cooling fan introduce outside engine compartment in the described engine compartment is moving; With second member, itself and first member integral body form and are arranged on outside the engine compartment and is inclined upwardly with predetermined inclination.
In exemplary embodiment of the present invention, first member can comprise the high frequency acoustic absorption material of absorbing high-frequency sound, and second member can comprise the all-bottom sound absorbent material that absorbs all-bottom sound.
In exemplary embodiment of the present invention, first member can comprise the all-bottom sound absorbent material that absorbs all-bottom sound, and second member can comprise the high frequency acoustic absorption material of absorbing high-frequency sound.
In the exemplary embodiment of the present invention, first and second members can have the free end of semicircle and quadrangular section respectively, to reduce and to introduce the resistance of air that the cooling air in the engine compartment contacts by suction port.
In the exemplary embodiment of the present invention, first and second members can have the free end of triangle and quadrangular section respectively, to reduce and to introduce the resistance of air that the cooling air in the engine compartment contacts by suction port.
In the exemplary embodiment of the present invention, first and second members can have the free end of quadrilateral and semi-circular cross-section respectively, to reduce and to introduce the resistance of air that the cooling air in the engine compartment contacts by suction port.
In the exemplary embodiment of the present invention, first and second members can have the free end of quadrilateral and triangular-section respectively, to reduce and to introduce the resistance of air that the cooling air in the engine compartment contacts by suction port.
In the exemplary embodiment of the present invention, first and second members can have the free end of semi-circular cross-section, to reduce and to introduce the resistance of air that the cooling air in the engine compartment contacts by suction port.
In the exemplary embodiment of the present invention, first and second members can have the free end of quadrangular section, to reduce and to introduce the resistance of air that the cooling air in the engine compartment contacts by suction port.
According to exemplary embodiment of the present invention, the noise silencer that is used for construction equipment provides following advantage.
Owing to constitute the optimised shape and the structure of the noise suppression member of noise silencer, this noise silencer can reduce to produce from engine compartment and propagate into noise engine compartment outside, and guiding cooling air flow Channel Group is moving with the maintenance cooling performance, and improves product reliability thus.
And then, the noise silencer utilization has different sound absorption characteristics and reduces to produce low frequency and high-frequency noise from engine compartment as the low frequency of acoustic absorption material that is attached to noise silencer and high frequency acoustic absorption material, makes noise silencer can produce best-of-breed functionality and improves product competitive ability thus.
Description of drawings
Each accompanying drawing is included to provide to further understanding of the present invention and is included in the present specification and constitutes the part of present specification, and each accompanying drawing example illustrates exemplary embodiment of the present invention, and is used to illustrate each side of the present invention together with the description.
Fig. 1 example illustrates the operation of traditional noise silencer.
Fig. 2 is that example illustrates the schematic isometric according to the noise silencer that is used for construction equipment of first embodiment of the invention.
Fig. 3 example illustrates the operation according to the noise silencer that is used for construction equipment of first embodiment of the invention.
Fig. 4 example illustrates the operation according to the noise silencer that is used for construction equipment of second embodiment of the invention.
Fig. 5 example illustrates the operation according to the noise silencer that is used for construction equipment of third embodiment of the invention.
Fig. 6 example illustrates the operation according to the noise silencer that is used for construction equipment of fourth embodiment of the invention.
Fig. 7 example illustrates the operation according to the noise silencer that is used for construction equipment of fifth embodiment of the invention.
Fig. 8 example illustrates the operation according to the noise silencer that is used for construction equipment of sixth embodiment of the invention.
Embodiment
Exemplary embodiment of the present invention will be elaborated hereinafter, so that those skilled in the art can easily implement the present invention.Yet below describing not is to be intended to limit technology main idea of the present invention or scope.
According to as Fig. 2 to embodiments of the invention shown in Figure 8, the noise silencer that is used for construction equipment is installed in the suction port and/or the relief opening of the engine compartment of construction equipment, and comprise: be installed in engine compartment 11 the precalculated position framework 12 (for example, be installed in the suction port 18, wherein outside air is introduced in the engine compartment 11 outside engine compartment 11 by suction port 18 when cooling fan 20 is driven); Vertically with the noise suppression member 15 of even fixed interval to framework 12, each noise suppression member 15 comprises: first member 13, its along continuous straight runs are arranged in the engine compartment 11 so that the operation by cooling fan 20 is moved the cooling air flow Channel Group that are introduced in the engine compartment 11 from engine compartment 11 outside; With second member 14, it is with the 13 whole formation of first member and be arranged on the engine compartment 11 outer noises (by the high-frequency noise due to the operation of motor 21 with by the low-frequency noise due to the operation of cooling fan 20) that are inclined upwardly and are transmitted to outside the engine compartment 11 to contact and to shield with predetermined inclination.
At this moment, the high frequency acoustic absorption material 16 that first member 13 is equipped with main absorbing high-frequency sound (for example, make by polyurethane, polypropylene, glass fibre, felt, foamed resin, PVC etc.), second member 14 is equipped with the all-bottom sound absorbent material 17 (for example, being made by the inorganic material such as mineral) of main absorption all-bottom sound.
For reduce be introduced into engine compartment 11 in the resistance of air that contacts of cooling air, each in first and second members 13 and 14 all has the free end that forms quadrangular section.
Although not shown, first member 13 can be equipped with the all-bottom sound absorbent material of main absorption all-bottom sound, and second member 14 can be equipped with the high frequency acoustic absorption material of main absorbing high-frequency sound.
In the accompanying drawings in the reference character of not describing as yet, 23 expressions make the discharging gas from motor 21 be discharged to silencing apparatus in the atmosphere, and 24 expressions are connected to motor 21 and hydraulic oil are fed to the oil hydraulic pump of hydraulic actuator (for example oil hydraulic cylinder).
Now with reference to the structure of accompanying drawing detailed description according to the noise silencer that is used for construction equipment of the first embodiment of the present invention.
As shown in Figure 3, under the situation such as the construction equipment of excavator, when motor 21 and cooling fan 20 were driven, cooling air was introduced in the engine compartment 11 by suction port 18, cooling radiator 22 is discharged to outside the engine compartment 11 by relief opening 19 then.
And then when motor 21 and cooling fan 20 were driven, noise also produced from engine compartment 11, propagates into outside the engine compartment 11 in company with cooling air then.At this moment, the noise of generation is shielded by the noise silencer of installing in suction port 18 and suppresses.
Specifically, when being driven, motor 21 and cooling fan 20 produce the low-frequency noise that noise from engine compartment is divided into high-frequency noise that the operation owing to motor 21 produces and produces owing to the operation of cooling fan 20.First member 13 and second member 14 that these noises can be configured each noise suppression member 15 absorb and shielding, promptly suppress.
In this way, because first member, 13 along continuous straight runs of each noise suppression member 15 are set in the engine compartment 11, and second member 14 of each noise suppression member 15 is set at engine compartment 11 outers upward to inclination, thereby absorbs and suppress owing to the operation of motor 21 and cooling fan 20 produces the all-bottom sound absorbent material of installing on second member of high frequency acoustic absorption material 16 that high and low frequency noise from engine compartment 11 installs on by first member 13 of each noise suppression member 15 and each noise suppression member 15 17.
According to the above-mentioned noise silencer that is used for construction equipment, the cooling air flow that is introduced in the engine compartment 11 by suction port 18 when cooling fan 20 is driven can not suppress member 15 by interference noise, makes cooling air to be introduced glibly in the engine compartment 11.Therefore, the cooling air volume that is introduced into increases, thereby effective cooling radiator 22 and motor 21 make cooling effectiveness be improved.
And then, the high and low frequency noise that produces from engine compartment 11 owing to the operation of motor 21 and cooling fan 20 is absorbed by the all-bottom sound absorbent material 17 of the high frequency acoustic absorption material 16 of first member 13 and second member 14, makes the function of noise silencer to be optimised.In other words, the high and low frequency noise has experienced from sound pressure energy to the transformation of energy that rubs when the all-bottom sound absorbent material 17 of the high frequency acoustic absorption material 16 that passes first member 13 and second member 14.As a result, the high and low frequency noise can be absorbed and shield, and promptly is suppressed.
As shown in Figure 4, the noise silencer that is used for construction equipment according to second embodiment of the invention is constructed to, in order to reduce and to be introduced into the resistance of air that the cooling air in the engine compartment 11 contacts by suction port 18, the free end that first member 13 of each noise suppression member 15 has quadrangular section, the free end that second member 14 of each noise suppression member 15 has semi-circular cross-section.
At this moment, the free end of second member 14 has semi-circular cross-section, thereby make when the operation of cooling air by cooling fan 20 is introduced in the engine compartment 11 outside engine compartment 11 via suction port 18 owing to minimize with resistance of air due to each noise suppression member 15 contacts, in addition, the basic identical (see figure 3) of the structure of describing in described structure and the first embodiment of the invention, therefore, omit detailed description, identical reference character is used to represent identical parts.
As shown in Figure 5, the noise silencer that is used for construction equipment according to third embodiment of the invention is constructed to, in order to reduce and to be introduced into the resistance of air that the cooling air in the engine compartment 11 contacts by suction port 18, the free end that first member 13 of each noise suppression member 15 has quadrangular section, and second member 14 of each noise suppression member 15 has the free end of triangular-section.
At this moment, the free end of second member 14 has the triangular-section, thereby make when the operation of cooling air by cooling fan 20 is introduced in the engine compartment 11 outside engine compartment 11 via suction port 18 owing to minimize with resistance of air due to each noise suppression member 15 contacts, in addition, the structure of describing in described structure and the first embodiment of the invention is basic identical, therefore, omit detailed description, identical reference character is used to represent identical parts.
As shown in Figure 6, the noise silencer that is used for construction equipment according to fourth embodiment of the invention is constructed to, in order to reduce and to be introduced into the resistance of air that the cooling air in the engine compartment 11 contacts by suction port 18, the free end that first member 13 of each noise suppression member 15 has semi-circular cross-section, and the free end that second member 14 of each noise suppression member 15 has quadrangular section.
At this moment, the free end of first member 13 has semi-circular cross-section, thereby make when the operation of cooling air by cooling fan 20 is introduced in the engine compartment 11 outside engine compartment 11 via suction port 18 owing to minimize with resistance of air due to each noise suppression member 15 contacts, in addition, the structure of describing in described structure and the first embodiment of the invention is basic identical, therefore, omit detailed description, identical reference character is used to represent identical parts.
As shown in Figure 7, the noise silencer that is used for construction equipment according to fifth embodiment of the invention is constructed to, in order to reduce and to be introduced into the resistance of air that the cooling air in the engine compartment 11 contacts by suction port 18, first member 13 of each noise suppression member 15 has the free end of triangular-section, and the free end that second member 14 of each noise suppression member 15 has quadrangular section.
At this moment, the free end of first member 13 has the triangular-section, thereby make when the operation of cooling air by cooling fan 20 is introduced in the engine compartment 11 outside engine compartment 11 via suction port 18 owing to minimize with resistance of air due to each noise suppression member 15 contacts, in addition, the structure of describing in described structure and the first embodiment of the invention is basic identical, therefore, omit detailed description, identical reference character is used to represent identical parts.
As shown in Figure 8, the noise silencer that is used for construction equipment according to sixth embodiment of the invention is constructed to, in order to reduce and to be introduced into the resistance of air that the cooling air in the engine compartment 11 contacts, the free end that first member 13 of each noise suppression member 15 and second member 14 have semi-circular cross-section by suction port 18.
At this moment, the free end of first member 13 and second member 14 has semi-circular cross-section, thereby make when cooling air since the operation of cooling fan 20 when from engine compartment 11 outside, being introduced in the engine compartment 11 via suction port 18 owing to minimizing with resistance of air due to each noise suppression member 15 contacts, in addition, the structure of describing in described structure and the first embodiment of the invention is basic identical, therefore, omit detailed description, identical reference character is used to represent identical parts.
It will be apparent for a person skilled in the art that under the situation of the spirit or scope that do not deviate from this aspect, can carry out various modifications and variations in the present invention.Therefore, the invention is intended to contain the interior modifications and variations of scope that this invention is in appended claims and equivalent thereof.
Claims (9)
1. noise silencer that is used for construction equipment, described noise silencer reduce the noise propagated by the suction port of the engine compartment of described construction equipment and exhaust port, and described noise silencer comprises:
Framework, it is installed in the suction port of described engine compartment and in the exhaust port at least one;
The noise suppression member, it arrives described framework with even fixed interval, and each noise suppression member comprises: first member, its along continuous straight runs is arranged in the described engine compartment, and the cooling air flow Channel Group that makes the operation of passing through cooling fan introduce outside described engine compartment in the described engine compartment is moving; With second member, itself and described first member integral body form and are arranged on outside the described engine compartment and is inclined upwardly with predetermined inclination.
2, noise silencer according to claim 1, wherein said first member comprises the high frequency acoustic absorption material of absorbing high-frequency sound, and described second member comprises the all-bottom sound absorbent material that absorbs all-bottom sound.
3, noise silencer according to claim 1, wherein said first member comprises the all-bottom sound absorbent material that absorbs all-bottom sound, and described second member comprises the high frequency acoustic absorption material of absorbing high-frequency sound.
4, according to each described noise silencer in the claim 1 to 3, wherein said first member and second member have the free end of semicircle and quadrangular section respectively, to reduce and to introduce the resistance of air that the described cooling air in the described engine compartment contacts by described suction port.
5, according to each described noise silencer in the claim 1 to 3, the free end that wherein said first member and second member have triangle and quadrangular section respectively is to reduce and to introduce the resistance of air that the described cooling air in the described engine compartment contacts by described suction port.
6, according to each described noise silencer in the claim 1 to 3, the free end that wherein said first member and second member have quadrilateral and semi-circular cross-section respectively is to reduce and to introduce the resistance of air that the described cooling air in the described engine compartment contacts by described suction port.
7, according to each described noise silencer in the claim 1 to 3, wherein said first member and second member have the free end of quadrilateral and triangular-section respectively, to reduce and to introduce the resistance of air that the described cooling air in the described engine compartment contacts by described suction port.
8, according to each described noise silencer in the claim 1 to 3, the free end that wherein said first member and second member have semi-circular cross-section is to reduce and to introduce the resistance of air that the described cooling air in the described engine compartment contacts by described suction port.
9, according to each described noise silencer in the claim 1 to 3, the free end that wherein said first member and second member have quadrangular section is to reduce and to introduce the resistance of air that the described cooling air in the described engine compartment contacts by described suction port.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080071088A KR20100010203A (en) | 2008-07-22 | 2008-07-22 | Noise silencer of construction equipment |
| KR1020080071088 | 2008-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101644180A true CN101644180A (en) | 2010-02-10 |
Family
ID=41066517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910164758A Pending CN101644180A (en) | 2008-07-22 | 2009-07-22 | Noise silencer for construction equipment |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100018798A1 (en) |
| EP (1) | EP2148012A1 (en) |
| JP (1) | JP2010024824A (en) |
| KR (1) | KR20100010203A (en) |
| CN (1) | CN101644180A (en) |
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| WO2011121450A2 (en) * | 2010-03-29 | 2011-10-06 | Kell Systems Ltd. | Acoustic dampening sleeve for electronic equipment and method of making the same |
| US8151931B2 (en) * | 2010-06-18 | 2012-04-10 | Lennox Industries Inc. | Acoustic noise control in heating or cooling systems |
| JP2014034804A (en) * | 2012-08-08 | 2014-02-24 | Caterpillar Sarl | Cover for construction machine and construction machine |
| US9216630B2 (en) * | 2013-03-14 | 2015-12-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Water shield |
| US10126039B2 (en) | 2015-12-29 | 2018-11-13 | Whirlpool Corporation | Refrigeration appliance having side air intake vent with sound dampening |
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- 2008-07-22 KR KR1020080071088A patent/KR20100010203A/en not_active Application Discontinuation
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- 2009-07-08 EP EP09008928A patent/EP2148012A1/en not_active Withdrawn
- 2009-07-16 US US12/504,317 patent/US20100018798A1/en not_active Abandoned
- 2009-07-17 JP JP2009168691A patent/JP2010024824A/en active Pending
- 2009-07-22 CN CN200910164758A patent/CN101644180A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872733A (en) * | 2017-12-04 | 2019-06-11 | 希捷科技有限公司 | Data with sound absorbing baffle store involucrum |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2148012A1 (en) | 2010-01-27 |
| JP2010024824A (en) | 2010-02-04 |
| US20100018798A1 (en) | 2010-01-28 |
| KR20100010203A (en) | 2010-02-01 |
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Application publication date: 20100210 |