CN114526157A - Heat dissipation and noise reduction device for square cabin of high-power generator set - Google Patents
Heat dissipation and noise reduction device for square cabin of high-power generator set Download PDFInfo
- Publication number
- CN114526157A CN114526157A CN202210083949.7A CN202210083949A CN114526157A CN 114526157 A CN114526157 A CN 114526157A CN 202210083949 A CN202210083949 A CN 202210083949A CN 114526157 A CN114526157 A CN 114526157A
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- plate
- shelter
- power generator
- generator set
- noise reduction
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
- F02B77/13—Acoustic insulation
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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
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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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
- F02B63/047—Movable engine-generator combinations on wheels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention discloses a heat dissipation and noise reduction device for a shelter of a high-power generator set, which comprises a silencer, wherein composite structures with rock wool layers and porous plates layers in the layers are paved on the surfaces except for a shelter floor in the shelter, and the shelter floor comprises a lower-layer wood plate and an upper-layer patterned aluminum plate. The high-power generator set is fixed on the middle part of the shelter floor, the electric shutter is installed in an air inlet of a shelter end face plate, the corrugated silencing plate assembly is vertically fixed on one end of the corresponding shelter side plate, the L-shaped air guide silencing plate assembly is vertically fixed in an air exhaust cabin at the other end of the corresponding shelter side plate, and the air exhaust port is covered with the electric overturning top cover. The invention reduces the 105dB noise of the vehicle-mounted high-power generator set to 75dB, and meanwhile, the cooling effect is obvious. The invention has convenient operation and low cost, avoids the overheat shutdown of the vehicle-mounted high-power generator set, improves the working reliability of the vehicle-mounted high-power generator set and prolongs the service life of the vehicle-mounted high-power generator set.
Description
Technical Field
The invention relates to a heat dissipation and noise reduction device, in particular to a heat dissipation and noise reduction device of a generator set installed in a shelter, and belongs to the technical field of vehicle-mounted shelters.
Background
The shelter mounted on the special vehicle runs along with the vehicle, has strong maneuverability, and is widely applied to the fields of communication command, emergency rescue, hydraulic engineering, army field operation and the like. When a special vehicle is operated in the field or in battles, electric equipment in the square cabin cannot get electricity through commercial power, and needs to be matched with a high-power vehicle-mounted generator set with strong maneuverability and power of more than 200kW for supplying power. The high-power generator set arranged in the square cabin generally adopts a structure type that a diesel engine drives a generator, the heat emitted by the diesel engine is high when the diesel engine runs, and the superposed noise is large when the diesel engine and the generator run. After the high-power generator set works for a period of time, the temperature in the cabin is continuously increased, the high-power generator set is damaged due to the overhigh temperature in the cabin, or the high-power generator set is automatically stopped due to the starting of overheat protection, the normal work of the high-power generator set is seriously influenced, and the service life of the high-power generator set is also shortened. In addition, the noise of the high-power generator set is more than or equal to 100dB, so that the target is easily exposed, and meanwhile, the health of workers is greatly influenced.
How to make the shelter equipped with the high-power generator set meet the heat dissipation requirements of the high-power generator set, and also make the noise reduction meet the requirements of relevant specifications, so as to realize the balance of heat dissipation and noise reduction, which is a great problem in the research and development of the shelter of the high-power generator set.
Disclosure of Invention
The invention aims to provide a radiating and noise reducing device for a square cabin of a high-power generator set, which is convenient to install and has good radiating and noise reducing effects.
The invention is realized by the following technical scheme:
a heat dissipation and noise reduction device for a shelter of a high-power generator set comprises a smoke exhaust silencer, wherein the smoke exhaust silencer is fixed on the lower side of one end of a shelter top plate far away from a vehicle-carrying cab, and a smoke exhaust pipe at the top of one end of the high-power generator set is connected with a smoke exhaust port of the shelter top plate through the smoke exhaust silencer; pouring polyurethane foam materials after welding the vertically intersected spliced corners of the cabin body plates; the rest surfaces except the square cabin floor in the cabin are paved with a composite structure in which rock wool is arranged in a layer and a porous plate is arranged outside the layer, the square cabin floor is fixed on a framework at the bottom of the square cabin and comprises a layer of wood plate and a pattern aluminum plate fixed on the upper side of the wood plate, and the bottom of the high-power generator set is fixed on the middle part of the square cabin floor; the electric shutter is arranged in an air inlet of a square cabin end panel close to one end of the vehicle-carrying cab, and the corrugated silencing plate assembly is vertically fixed on one end of a corresponding square cabin side plate; the L-shaped air guide and noise reduction sheet assembly is vertically fixed in an air exhaust cabin at the other end of the corresponding shelter side plate, the upper end of the L-shaped air guide and noise reduction sheet assembly is located on the lower side of an air outlet at one end, far away from a vehicle loading cab, of a shelter top plate, and an electric overturning top cover covers the air outlet.
The object of the invention is further achieved by the following technical measures.
Further, the porous plate is made of an aluminum plate with the thickness of 0.8-1.0 mm, round holes are densely distributed on the aluminum plate in a matrix arrangement, and the diameter of each round hole is phi 5-6 mm; the thickness of the wood plate is 28-32 mm.
Furthermore, the corrugated silencing plate assembly comprises a plurality of layers of corrugated silencing plates and 2 first vertical connecting plates, the plurality of layers of corrugated silencing plates are vertically arranged at intervals, and the first vertical connecting plates are fixedly connected with two ends of each layer of corrugated silencing plate respectively; the corrugated silencing plate comprises a corrugated silencing plate box body, the shape of the corrugated silencing plate box body is matched with that of the corrugated silencing plate, and sound absorption cotton is attached to the interior of the corrugated silencing plate box body.
Furthermore, the L-shaped air guide and noise reduction sheet assembly comprises a plurality of layers of L-shaped air guide and noise reduction plates and 2 second vertical connecting plates, the upper ends of the L-shaped air guide and noise reduction plates which are arranged at intervals are positioned at the lower side of an air outlet at one end of the shelter top plate, which is far away from a vehicle-carrying cab, the horizontal edges and the vertical edges of the L-shaped air guide and noise reduction plates are sequentially prolonged, one end of each horizontal edge faces one end of the high-power generator set, the upper end heads of the vertical edges are flush and level and face the air outlet, and the second vertical connecting plates are respectively fixedly connected with the two ends of each layer of L-shaped noise reduction plate; the L-shaped wind-guiding silencing plate comprises an L-shaped perforated plate box body matched with the L shape in shape, and sound-absorbing cotton is attached to the inside of the L-shaped box body.
Furthermore, an L-shaped aluminum pressing strip is respectively fixed on the lower side of the corrugated silencing plate or the lower side of the L-shaped air guide silencing plate.
Furthermore, one end of one group of four horizontally arranged lap joint feet is respectively fixed on four corners of the first vertical connecting plate, and one end of the other group of four lap joint feet is respectively fixed on one end of the shelter side plate adjacent to the first vertical connecting plate; or one end of one group of four horizontally arranged lap joint feet is respectively fixed on four corners of the second vertical connecting plate, and one end of the other group of four lap joint feet is respectively fixed on the other end of the shelter side plate adjacent to the second vertical connecting plate; the other ends of the two adjacent lap joint feet are overlapped up and down and are fixedly connected through a fastening piece; therefore, the corrugated silencing plate assembly is fixed at one end of the square cabin close to the vehicle-carrying cab, and the L-shaped air guide silencing plate assembly is fixed at one end of the square cabin far away from the vehicle-carrying cab.
The cabin body noise reduction structure is characterized in that a layer of rock wool and a layer of porous plate are paved on the other surfaces except a shelter floor, the shelter floor is of a composite structure of a wood board and a patterned aluminum board, a corrugated noise reduction plate assembly on one side of an air inlet and a heat dissipation and noise reduction structure of an L-shaped air guide and noise reduction sheet assembly on the lower side of an air outlet are arranged, a smoke exhaust silencer fixed on the lower side of one end of a shelter top plate and an air channel from an electric shutter to the air outlet are constructed, vibration generated when a high-power generator set works is effectively weakened, noise is further weakened, 105dB noise of the vehicle-mounted high-power generator set is reduced to 75dB, and meanwhile, the cooling effect is obvious. The invention has convenient operation and low cost, avoids the overheat shutdown of the vehicle-mounted high-power generator set, improves the working reliability of the vehicle-mounted high-power generator set and prolongs the service life of the vehicle-mounted high-power generator set.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a structural diagram of a square cabin of a high-power generator set of the invention, which is arranged on a vehicle;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is an enlarged sectional view B-B of FIG. 2;
FIG. 4 is an enlarged cross-sectional view of C-C of FIG. 2;
FIG. 5 is a cross-sectional view D-D of FIG. 3;
FIG. 6 is a cross-sectional view E-E of FIG. 3;
FIG. 7 is an enlarged schematic view of the shelter floor;
FIG. 8 is a partial enlarged view of the multi-well plate.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1, 3 and 5, the present embodiment includes a smoke exhaust silencer 3 fixed on the lower side of the right end of a shelter roof 21 far away from a vehicle cab 1, and a honeycomb hole filling body is installed in the smoke exhaust silencer 3, so that the present embodiment has a good noise reduction effect. The smoke exhaust pipe 41 at the top of the right end of the high-power generator set 4 is connected with the smoke exhaust port 211 of the shelter top plate 21 through the smoke exhaust silencer 3, the smoke exhaust port 211 is provided with a turnover cover for preventing rainwater from entering, and when the high-power generator set 4 works, smoke exhaust pressure can blow open the turnover cover of the smoke exhaust port 211, so that smoke can be conveniently exhausted out of the shelter.
In fig. 4, polyurethane foam material 212 is poured after welding at the vertically intersected splicing corners of the shelter side plates 22 and the shelter end plates 23, and a composite structure in which rock wool 231 is arranged in a layer and porous plates 232 are arranged on the rest surfaces except the shelter floor 24 in the shelter 2 is paved. As shown in fig. 8, the porous plate 232 is made of an aluminum plate with a thickness of 0.8mm, the aluminum plate is densely distributed with round holes 233 arranged in a matrix, the diameter of the round holes 233 is phi 6mm, and the combined structure of the porous plate 232 and the rock wool 231 has good noise reduction and sound insulation effects.
As shown in fig. 3, 5 and 7, the bottom of the high-power generator set 4 is fixed on the middle of the shelter floor 24, the shelter floor 24 is fixed on the shelter bottom framework 25, the shelter floor 24 comprises a layer of wood board 241 with the thickness of 30mm and a pattern aluminum plate 242 fixed on the upper side of the wood board 241, and the wood board 241 can effectively weaken the vibration generated by the high-power generator set 4 during working and further weaken the noise.
As shown in fig. 1 and 2, the electric louver 5 is installed in the air inlet 231 near the shelter end panel 23 of the vehicle cab 1. When the switch is turned on, the electric shutter 5 in the square cabin end panel 23 and the electric turnover top cover 6 at the cabin top are automatically opened, an air duct from the air inlet 231 at the left end of the square cabin 2 to the air outlet 212 at the right end of the square cabin top plate 21 is constructed as shown in fig. 3, and the high-power generator set 4 can normally work.
As shown in fig. 3, the corrugated sound-deadening plate assembly 6 is vertically fixed on the left end of the corresponding shelter side plate 22, the L-shaped air-guiding sound-deadening plate assembly 7 is vertically fixed in the air-exhausting cabin 221 at the right end of the corresponding shelter side plate 22, the upper end of the L-shaped air-guiding sound-deadening plate assembly 7 is located on the lower side of the air outlet 212 at one end of the shelter top plate far away from the vehicle-carrying cab 1, and the electric turnover roof cover 6 covers the air outlet 212. Noise generated by the high-power generator set 4 during operation is attenuated by the corrugated sound-absorbing plate assembly 6, and then the noise transmitted to the air outlet 212 is greatly reduced.
Corrugated noise reduction plate assembly 6 includes the corrugated noise reduction plate 61 and 2 first perpendicular connecting plates 62 that the multilayer set up perpendicularly at interval, first perpendicular connecting plate 62 respectively with each layer corrugated noise reduction plate 61 both ends fixed connection. Corrugated sound-absorbing plate 61 includes corrugated sound-absorbing plate case 611 whose shape matches corrugated sound-absorbing plate 61, and sound-absorbing cotton 612 is attached to corrugated sound-absorbing plate case 611.
The L-shaped air guide and noise reduction sheet assembly 7 comprises a plurality of layers of L-shaped air guide and noise reduction plates 71 and 2 second vertical connecting plates 72, the upper ends of the L-shaped air guide and noise reduction plates 71 arranged at intervals are located on the upper side of a shelter top plate and far away from the lower side of an air outlet 212 at one end of a vehicle-carrying cab, the horizontal edges 711 and the vertical edges 712 of the L-shaped air guide and noise reduction plates 71 are sequentially prolonged, one end of each horizontal edge 711 faces the right end of the high-power generator set 4, the upper end of each vertical edge 712 is parallel and level, the air outlet 212 faces the upper end, and the second vertical connecting plates 72 are fixedly connected with the two ends of each layer of L-shaped noise reduction plate 71 respectively. The L-shaped wind-guiding and sound-absorbing plate 71 comprises an L-shaped perforated plate box 713 matched with the L shape in shape, and sound-absorbing cotton 612 is attached to the L-shaped box. An L-shaped aluminum pressing strip 613 is respectively fixed on the lower side of the corrugated silencing plate 61 or the lower side of the L-shaped air guide silencing plate 71, so that the strength and rigidity of the corrugated silencing plate 61 or the L-shaped air guide silencing plate 71 are improved.
When the high-power generator set 4 works, the air flow outside the vehicle sequentially passes through the electric shutter 5, the corrugated silencing plate assembly 6 and the high-power generator set 4 as shown by a horizontal arrow at the left end of the shelter 2 in fig. 3, then enters the L-shaped air duct of the L-shaped air guide silencing plate assembly 7, then vertically upwards and is discharged outside the vehicle from the opened air outlet 212. The structure of the porous plates and the sound-absorbing cotton of the corrugated sound-absorbing plate assembly 6 and the L-shaped air-guiding sound-absorbing plate assembly 7 can greatly reduce the transmission of sound waves and has better noise reduction effect. The hot air generated by the work of the high-power generator set 4 can be quickly guided to the cabin top to be discharged, and meanwhile, the heat on the surface of the smoke discharging silencer 3 can be discharged.
As shown in fig. 6, one end of one set of four horizontally disposed bridging pins 8 is fixed to the four corners of the first vertical connecting plate 62, and one end of the other set of four bridging pins 8 is fixed to one end of the shelter side plate 22 adjacent to the first vertical connecting plate 62. Or one end of one group of four horizontally arranged bridging pins 8 is respectively fixed on the four corners of the second vertical connecting plate 72, and one end of the other group of four bridging pins 8 is respectively fixed on the other end of the shelter side plate 22 adjacent to the second vertical connecting plate 72. The other ends of two adjacent lapping pins 8 are overlapped up and down and fixedly connected through a fastener 81. Therefore, the corrugated silencing plate assembly 6 is fixed at the left end of the square cabin 2 close to the vehicle-carrying cab 1, and the L-shaped air guide silencing plate assembly 7 is fixed at the right end of the square cabin 2 far away from the vehicle-carrying cab.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations are within the scope of the present invention.
Claims (7)
1. A heat dissipation and noise reduction device for a shelter of a high-power generator set comprises a smoke exhaust silencer, wherein the smoke exhaust silencer is fixed on the lower side of one end of a shelter top plate far away from a vehicle-carrying cab, and a smoke exhaust pipe at the top of one end of the high-power generator set is connected with a smoke exhaust port of the shelter top plate through the smoke exhaust silencer; pouring polyurethane foam materials after welding the vertically intersected spliced corners of the cabin body plates; the method is characterized in that: the rest surfaces except the square cabin floor in the cabin are paved with a composite structure in which rock wool is arranged in a layer and a porous plate is arranged outside the layer, the square cabin floor is fixed on a framework at the bottom of the square cabin and comprises a layer of wood plate and a pattern aluminum plate fixed on the upper side of the wood plate, and the bottom of the high-power generator set is fixed on the middle part of the square cabin floor; the electric shutter is arranged in an air inlet of a square cabin end panel close to the vehicle-carrying cab, and the corrugated silencing plate assembly is vertically fixed on one end of a corresponding square cabin side plate; the L-shaped air guide and noise reduction sheet assembly is vertically fixed in an air exhaust cabin at the other end of the corresponding shelter side plate, the upper end of the L-shaped air guide and noise reduction sheet assembly is located on the lower side of an air outlet at one end, far away from a vehicle loading cab, of a shelter top plate, and an electric overturning top cover covers the air outlet.
2. The heat dissipation and noise reduction device for the shelter of the high-power generator set as recited in claim 1, wherein: the perforated plate is made of aluminum plates with the thickness of 0.8-1.0 mm, round holes are densely distributed on the aluminum plates in a matrix arrangement, and the diameter of each round hole is phi 5-6 mm.
3. The heat dissipation and noise reduction device for the shelter of the high-power generator set as recited in claim 1, wherein: the thickness of the wood plate is 28-32 mm.
4. The heat dissipation and noise reduction device for the shelter of the high-power generator set as recited in claim 1, wherein: the corrugated silencing plate assembly comprises a plurality of layers of corrugated silencing plates and 2 first vertical connecting plates, the plurality of layers of corrugated silencing plates are vertically arranged at intervals, and the first vertical connecting plates are fixedly connected with two ends of each layer of corrugated silencing plate respectively; the corrugated sound-absorbing plate comprises a corrugated sound-absorbing plate box body, the shape of the corrugated sound-absorbing plate box body is matched with that of the corrugated sound-absorbing plate, and sound-absorbing cotton is attached to the interior of the corrugated sound-absorbing plate box body.
5. The heat dissipation and noise reduction device for the shelter of the high-power generator set as recited in claim 1, wherein: the L-shaped air guide and noise reduction sheet assembly comprises a plurality of layers of L-shaped air guide and noise reduction plates and 2 second vertical connecting plates, the upper ends of the L-shaped air guide and noise reduction plates which are arranged at intervals are positioned at the lower side of an air outlet at one end of a shelter top plate, which is far away from a vehicle-carrying cab, the horizontal edges and the vertical edges of the L-shaped air guide and noise reduction plates are sequentially extended, one ends of the horizontal edges face one end of a high-power generator set, the upper ends of the vertical edges are flush and level and face an air outlet, and the second vertical connecting plates are fixedly connected with the two ends of each layer of L-shaped noise reduction plate respectively; the L-shaped wind-guiding silencing plate comprises an L-shaped perforated plate box body matched with the L shape in shape, and sound-absorbing cotton is attached to the inside of the L-shaped box body.
6. The heat dissipation and noise reduction device for the shelter of the high-power generator set as claimed in claim 4 or 5, wherein: and an L-shaped aluminum pressing strip is respectively fixed on the lower side of the corrugated silencing plate or the lower side of the L-shaped air guide silencing plate.
7. The heat dissipation and noise reduction device for the shelter of the high-power generator set as claimed in claim 4 or 5, wherein: one end of one group of four horizontally arranged lap joint feet is respectively fixed on four corners of the first vertical connecting plate, and one end of the other group of four lap joint feet is respectively fixed on one end of the shelter side plate adjacent to the first vertical connecting plate; or one end of one group of four horizontally arranged lap joint feet is respectively fixed on four corners of the second vertical connecting plate, and one end of the other group of four lap joint feet is respectively fixed on the other end of the shelter side plate adjacent to the second vertical connecting plate; the other ends of the two adjacent lap joint feet are overlapped up and down and are fixedly connected through a fastening piece; therefore, the corrugated silencing plate assembly is fixed at one end of the square cabin close to the vehicle-carrying cab, and the L-shaped air guide silencing plate assembly is fixed at one end of the square cabin far away from the vehicle-carrying cab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210083949.7A CN114526157A (en) | 2022-01-25 | 2022-01-25 | Heat dissipation and noise reduction device for square cabin of high-power generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210083949.7A CN114526157A (en) | 2022-01-25 | 2022-01-25 | Heat dissipation and noise reduction device for square cabin of high-power generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114526157A true CN114526157A (en) | 2022-05-24 |
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ID=81620147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210083949.7A Pending CN114526157A (en) | 2022-01-25 | 2022-01-25 | Heat dissipation and noise reduction device for square cabin of high-power generator set |
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| Country | Link |
|---|---|
| CN (1) | CN114526157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220896A (en) * | 2023-05-10 | 2023-06-06 | 雅柯斯电力科技（中国）有限公司 | Ultra-silent unit with multi-scene application and working method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2449574A1 (en) * | 1973-10-19 | 1975-04-30 | Deere & Co | MOTOR VEHICLE WITH A SOUND ATTENUATION DEVICE |
| CN101393735A (en) * | 2007-12-04 | 2009-03-25 | 衡阳泰豪通信车辆有限公司 | De-noising apparatus for vehicle-mounted electricity generating set compartment |
| CN201546783U (en) * | 2009-09-16 | 2010-08-11 | 东莞市新路线机电设备有限公司 | Air flue muffling matrix body |
| CN204511651U (en) * | 2015-01-04 | 2015-07-29 | 中国移动通信集团江苏有限公司 | The sound-deadening and noise-reducing device of heavy duty generator set |
| CN105508044A (en) * | 2015-12-18 | 2016-04-20 | 山西中电科技特种装备有限公司 | Low-noise power station chamber |
| CN211500799U (en) * | 2019-12-23 | 2020-09-15 | 郑州佛光发电设备有限公司 | Noise reduction cabin body of trailer power station |
| CN113928358A (en) * | 2021-11-05 | 2022-01-14 | 中车株洲电力机车有限公司 | Low-noise air conditioner air duct of railway passenger car |
-
2022
- 2022-01-25 CN CN202210083949.7A patent/CN114526157A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2449574A1 (en) * | 1973-10-19 | 1975-04-30 | Deere & Co | MOTOR VEHICLE WITH A SOUND ATTENUATION DEVICE |
| CN101393735A (en) * | 2007-12-04 | 2009-03-25 | 衡阳泰豪通信车辆有限公司 | De-noising apparatus for vehicle-mounted electricity generating set compartment |
| CN201546783U (en) * | 2009-09-16 | 2010-08-11 | 东莞市新路线机电设备有限公司 | Air flue muffling matrix body |
| CN204511651U (en) * | 2015-01-04 | 2015-07-29 | 中国移动通信集团江苏有限公司 | The sound-deadening and noise-reducing device of heavy duty generator set |
| CN105508044A (en) * | 2015-12-18 | 2016-04-20 | 山西中电科技特种装备有限公司 | Low-noise power station chamber |
| CN211500799U (en) * | 2019-12-23 | 2020-09-15 | 郑州佛光发电设备有限公司 | Noise reduction cabin body of trailer power station |
| CN113928358A (en) * | 2021-11-05 | 2022-01-14 | 中车株洲电力机车有限公司 | Low-noise air conditioner air duct of railway passenger car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220896A (en) * | 2023-05-10 | 2023-06-06 | 雅柯斯电力科技（中国）有限公司 | Ultra-silent unit with multi-scene application and working method thereof |
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