CN114109562B - Silencer for unmanned aerial vehicle power generation system - Google Patents
Silencer for unmanned aerial vehicle power generation system Download PDFInfo
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- CN114109562B CN114109562B CN202111670156.7A CN202111670156A CN114109562B CN 114109562 B CN114109562 B CN 114109562B CN 202111670156 A CN202111670156 A CN 202111670156A CN 114109562 B CN114109562 B CN 114109562B
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- silencing
- aerial vehicle
- unmanned aerial
- baffle plate
- power generation
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- 238000010248 power generation Methods 0.000 title claims abstract description 37
- 230000003584 silencer Effects 0.000 title claims abstract description 27
- 230000030279 gene silencing Effects 0.000 claims abstract description 86
- 238000005192 partition Methods 0.000 claims description 39
- 230000007246 mechanism Effects 0.000 claims description 30
- 238000009423 ventilation Methods 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 abstract description 18
- 230000001603 reducing effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/0335—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with exhaust silencers in a single housing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencing device for an unmanned aerial vehicle power generation system, and belongs to the technical field of unmanned aerial vehicle silencing. The purpose is used for reducing noise generated during operation of the unmanned aerial vehicle power generation system through multistage silencing and noise reduction treatment, and noise pollution is reduced. The technical scheme is that the silencer for unmanned aerial vehicle power generation system is provided, which comprises an outer shell, be equipped with first baffle in proper order from one end to the other end in the shell, second baffle and third baffle are with first amortization district, second amortization district, third amortization district and fourth amortization district in the shell, be equipped with fourth baffle in the third amortization district, fifth baffle and sixth baffle, fourth baffle, fifth baffle, sixth baffle enclose into the district of admitting air with the shell inner wall, be equipped with the air inlet on the shell that is located the district department of admitting air, be equipped with the gas vent on the shell that is located the fourth amortization district.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicle silencing, and relates to a silencing device for an unmanned aerial vehicle power generation system.
Background
The hybrid unmanned aerial vehicle is a novel double-power unmanned aerial vehicle. The power system is composed of two power systems of an electric drive and a conventional engine, so that the combination of good take-off and climbing performances, silence and ultra-long endurance is realized. The sound intensity generated when the power generation system of the hybrid unmanned aerial vehicle works is quite loud sound, and the sound directly transmitted from the engine body and main accessories thereof to the space belongs to engine noise.
Noise is a byproduct of industrial society and is considered to be three major nuisances in the world today, along with atmospheric pollution and water pollution. Noise pollution is formed when noise adversely affects humans and the surrounding environment. Compared with the other two public hazards, the influence surface of noise is the widest, the feeling is the most direct, and the people reflect the most.
In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art:
1. The existing silencer used on the engine has the problems of poor silencing effect, complex structure, large volume, high weight and high production cost, and can ensure the silencing effect;
2. the noise comprises high-frequency noise and low-frequency noise, and when noise generated by the engine is reduced, the noise of the high-frequency noise and the low-frequency noise is required to be reduced simultaneously, so that the noise reduction requirement is met;
3. most of the existing silencers are fixed by an independent external device, so that the stability is poor;
4. the self weight of the unmanned aerial vehicle has great influence on the transportation flight capacity of the unmanned aerial vehicle, and in the existing unmanned aerial vehicle silencer, the silencer has good silencing and noise reduction effects, the silencer is large in size and high in weight, the silencer is small in size and low in weight, and the silencing and noise reduction processing capacity is not ideal.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a silencing device for an unmanned aerial vehicle power generation system, which is used for reducing noise pollution by performing multistage silencing and noise reduction processing on noise generated when the unmanned aerial vehicle power generation system works.
The invention provides a silencing device for an unmanned aerial vehicle power generation system, which comprises an outer shell, wherein a first baffle plate, a second baffle plate and a third baffle plate are sequentially arranged in the outer shell from one end to the other end to divide the interior of the outer shell into a first silencing region, a second silencing region, a third silencing region and a fourth silencing region, a fourth baffle plate, a fifth baffle plate and a sixth baffle plate are arranged in the third silencing region, the outer edge of one side of the fourth baffle plate is connected with the side wall of the outer shell, the outer edge of one side of the fifth baffle plate is connected with the side wall of the outer shell, one side of the sixth baffle plate is connected with the outer edge of the other side of the fourth baffle plate, the other side of the sixth baffle plate is connected with the other side of the fifth baffle plate, the fourth baffle plate, the fifth baffle plate and the side wall of the outer shell enclose an air inlet region, an air inlet is arranged on the outer shell at the air inlet region, at least one air inlet is sequentially arranged in the outer shell, the fourth baffle plate and the first air inlet is sequentially penetrated through, the second baffle plate is arranged on the outer shell, a plurality of air inlet holes are sequentially arranged on the second baffle plate and the air inlet is sequentially arranged on the first air inlet is sequentially arranged on the second baffle plate.
According to one specific embodiment of the silencer for the unmanned aerial vehicle power generation system, the outer side wall of the outer shell is provided with a fixing mechanism.
According to a preferred embodiment of the silencer for the unmanned aerial vehicle power generation system, the fixing mechanism is arranged on the air inlet, and an air inlet through groove communicated with the air inlet is formed in the fixing mechanism.
According to a further embodiment of the silencer for the unmanned aerial vehicle power generation system, a sound absorption and filtration mechanism is arranged on one side, close to the second ventilation pipe, of the first silencing area.
According to a further embodiment of the silencing device for the unmanned aerial vehicle power generation system, a first plugging plate is arranged in the outlet of each first ventilating pipe located in the first silencing area, and a third exhaust hole is formed in the first plugging plate.
According to a further embodiment of the silencing device for the unmanned aerial vehicle power generation system, a second blocking plate is arranged in the inlet of the second vent pipe of each first silencing zone, a third air inlet hole is formed in the second blocking plate, a third blocking plate is arranged in the outlet of the second vent pipe of each third silencing zone, and a fourth air outlet hole is formed in the third blocking plate.
According to a further embodiment of the silencer for an unmanned aerial vehicle power generation system according to the invention, a plurality of second exhaust holes are provided on each of the second ventilation pipes located in the third silencing zone.
According to a further embodiment of the silencer for the unmanned aerial vehicle power generation system, the outer shell comprises an upper shell cover, a shell body and a lower shell cover, one end of the shell body is connected with the upper shell cover, the other end of the shell body is connected with the lower shell cover, the air inlet is arranged on the outer side wall of the shell body, the air outlet is arranged on the lower shell cover, and the air outlet is provided with an exhaust pipe.
According to a further embodiment of the silencer for an unmanned aerial vehicle power generation system, the outlet end face of the exhaust pipe is a bevel.
According to a further embodiment of the silencer for an unmanned aerial vehicle power generation system according to the present invention, the second plurality of air intake holes are located on a side of the sixth partition extending toward the air intake area.
Compared with the prior art, one of the technical schemes has the following advantages:
a) According to the invention, the first baffle plate, the second baffle plate and the third baffle plate are sequentially arranged from one end to the other end in the outer shell body to divide the interior of the outer shell body into the first silencing region, the second silencing region, the third silencing region and the fourth silencing region, and the fourth baffle plate, the fifth baffle plate and the sixth baffle plate are arranged in the third silencing region; the invention discloses a noise reduction device, which comprises an air inlet, a first vent pipe, a plurality of first vent holes, a second vent pipe, a plurality of first air inlets, a plurality of second air inlets and an exhaust port, wherein the air inlet is arranged on an outer shell body positioned at an air inlet area, the first vent pipe penetrates through a fourth partition plate, a second partition plate and the first partition plate in sequence, the first vent pipe positioned in a second noise reduction area is provided with a plurality of first air vents in sequence, the second vent pipe positioned in the second noise reduction area is provided with a plurality of second air vents in sequence, the air inlet is provided with an exhaust port on an outer shell body positioned in the fourth noise reduction area.
B) The invention adopts the fixing mechanism, and the fixing mechanism is convenient for workers to fix the invention to the unmanned aerial vehicle power generation system.
C) The invention adopts the fixing mechanism to be arranged on the air inlet, the fixing mechanism is provided with the air inlet through groove communicated with the air inlet, the fixing mechanism is used for being connected with the unmanned aerial vehicle power generation system in a mounting way, and can serve as a connecting pipe between the silencer and the power generation system to introduce air flow noise generated by the power generation system into the outer shell, and a separate drainage tube is not required to be arranged for the purpose, so that the structure of the invention is simplified.
D) The sound absorption filter mechanism is arranged on one side, close to the second vent pipe, of the first silencing area, noise is reduced through the sound absorption filter mechanism, and the silencing and noise reducing effects of the sound absorption filter mechanism are further improved.
E) The invention adopts the first plugging plate, and the third vent hole is arranged on the first plugging plate, so that when the air flow is discharged from the third vent hole of the first vent pipe, the air flow is firstly blocked by the first plugging plate to collide with each other for silencing.
F) The invention adopts the second plugging plate, the third air inlet hole is arranged on the second plugging plate, and the third plugging plate is provided with the fourth air outlet hole, so that the air flow is blocked by the second plugging plate and the third plugging plate when entering or exiting the second vent pipe, and the noise reduction effect of the invention is further improved.
G) The invention adopts the arrangement that a plurality of second exhaust holes are arranged on each second vent pipe positioned in the third silencing area, so that air flow can be discharged from the second exhaust holes of the second vent pipes, the silencing rate of the invention is improved, in addition, the direction of the air flow can be changed, and the air flow can enter the third silencing area from different directions, and the process is a process that the air flow is split and then converged, and the silencing and noise reducing capabilities of the invention can be further improved through the process.
H) The invention adopts the arrangement that the outer shell comprises an upper shell cover, a shell body and a lower shell cover, thereby being convenient for the installation work of other parts in the production and manufacturing process and the disassembly and maintenance work in the later use process of a user; the invention also adopts the exhaust pipe, the exhaust pipe is used for exhausting the air flow after the noise reduction treatment, and the noise reduction pipe is arranged to further prolong the path of the air flow in the invention and also prevent impurities such as dust and the like from directly entering the outer shell through the exhaust port.
I) The invention adopts the arrangement that the outlet end face of the exhaust pipe is an inclined plane, can guide the air flow direction to the inclined plane, and can lead the inclined plane to face downwards during installation, and can also play the roles of water resistance and dust resistance.
J) According to the invention, the arrangement that the plurality of second air inlets are positioned on one side of the sixth partition plate extending towards the air inlet area is adopted, so that when the air flow enters the fourth silencing area through the second air inlets on the third partition plate, the air flow collides with the upper half part of the third partition plate, and then enters the fourth silencing area through the second air inlets arranged on the lower half part of the third partition plate, and the silencing and noise reducing capabilities of the invention are further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the structure of the present invention (without the sound absorbing filter mechanism).
Fig. 2 is a perspective view of fig. 1.
Fig. 3 is another perspective view of fig. 1.
Fig. 4 is a schematic perspective view of the outer case in the present invention.
Fig. 5 is a schematic structural view of the present invention.
Fig. 6 is a perspective view of fig. 5.
The marks in the figure are respectively: 110 first sound deadening zone, 111 sound absorbing filter mechanism, 120 second sound deadening zone, 130 third sound deadening zone, 131 fourth baffle, 132 fifth baffle, 133 sixth baffle, 140 fourth sound deadening zone, 150 inlet zone, 160 first vent pipe, 161 first vent, 162 first shutoff plate, 1620 third vent, 170 second vent pipe, 171 first inlet port, 172 second shutoff plate, 1720 third inlet port, 173 second vent hole, 174 third shutoff plate, 1740 fourth vent hole, 180 inlet port, 190 vent port, 191 vent pipe, 200 first baffle, 300 second baffle, 400 third baffle, 410 second inlet port, 500 fixing mechanism, 510 inlet vent, 600 upper cover, 700 housing, 800 lower cover.
Detailed Description
The following description is of one embodiment with reference to the accompanying drawings.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in the following figures.
Example 1:
See fig. 1 to 4. The silencer for the unmanned aerial vehicle power generation system comprises an outer shell, wherein a first baffle 200, a second baffle 300 and a third baffle 400 are sequentially arranged in the outer shell from one end to the other end to divide the interior of the outer shell into a first silencing area 110, a second silencing area 120, a third silencing area 130 and a fourth silencing area 140, a fourth baffle 131, a fifth baffle 132 and a sixth baffle 133 are arranged in the third silencing area 130, the outer edge of one side of the fourth baffle 131 is connected with the inner side wall of the outer shell, the outer edge of one side of the fifth baffle 132 is connected with the inner side wall of the outer shell, one side of the sixth baffle 133 is connected with the outer edge of the other side of the fourth baffle 131, the other side of the sixth partition plate 133 is connected with the other side of the fifth partition plate 132, the fourth partition plate 131, the fifth partition plate 132, the sixth partition plate 133 and the inner side wall of the outer shell enclose an air inlet area 150, an air inlet 180 is arranged on the outer shell positioned at the air inlet area 150, at least one first vent pipe 160 penetrating through the fourth partition plate 131, the second partition plate 300 and the first partition plate 200 in sequence is arranged in the outer shell, a plurality of first vent holes 161 are arranged on the first vent pipe 160 positioned in the second silencing area 120, at least one second vent pipe 170 penetrating through the first partition plate 200 and the second partition plate 300 in sequence is arranged in the outer shell, the second ventilation pipe 170 in the second silencing zone 120 is provided with a plurality of first air inlet holes 171, the third partition 400 is provided with a plurality of second air inlet holes 410, and the outer shell of the fourth silencing zone 140 is provided with an air outlet 190. In the embodiment, the outer shell is a hollow cylinder, and is made of high-temperature resistant stainless steel, so that the stability of the invention in working under a high-temperature environment can be improved. The first separator 200, the second separator 300 and the third separator 400 are circular separators matched with the inner cavity of the outer shell, and the outer edges of the first separator 200, the second separator 300 and the third separator 400 extend towards one side to form annular extending parts, so that workers can conveniently install and fix the first separator 200, the second separator 300 and the third separator 400 in the inner cavity of the outer shell. In this embodiment, the fourth diaphragm 131 and the fifth diaphragm 132 can be obtained by cutting out a small portion of the diaphragm having the same shape and size as the first diaphragm 200, the second diaphragm 300 or the third diaphragm 400, connecting the arc-shaped outer edges of the fourth diaphragm 131 and the fifth diaphragm 132 with the inner wall of the outer case of the third sound deadening region 130, then adopting the sixth diaphragm 133, the sixth diaphragm 133 being a rectangular plate in this embodiment, one side of the short side of the sixth diaphragm 133 being connected with the cut surface of the fourth diaphragm 131, the other side of the cross section of the sixth diaphragm 133 being connected with the cut surface of the fifth diaphragm 132, both sides of the long side of the sixth diaphragm 133 being connected with the inner wall surface of the outer case, the fourth diaphragm 131 and the fifth diaphragm 132 can be obtained by cutting out the diaphragms having the same shape and size as the first diaphragm 200, the second diaphragm 300 or the third diaphragm 400 to obtain the fourth diaphragm 131 and the fifth diaphragm 132, and therefore, this embodiment refers to the cut surfaces for convenience of description, and in fact the fourth diaphragm 131 and the fifth diaphragm 132 can be manufactured entirely separately, and it is also possible to select the partition plates having the same shape and size as the first, second or third partition plates 200, 300 or 400 to be cut off a small portion for convenience in the manufacturing process, thereby obtaining the desired fourth and fifth partition plates 131 and 132.
When the air flow generated by the unmanned aerial vehicle power generation system enters the air inlet area 150 in the outer shell through the air inlet 180, collides with the fourth partition plate 131, the fifth partition plate 132, the sixth partition plate 133 and the inner wall of the outer shell which form the air inlet area 150 respectively, then enters the first ventilation pipe 160 through the air inlet end of the first ventilation pipe 160, one part of the air flow in the first ventilation pipe 160 directly enters the first silencing area 110 through the air outlet end of the first ventilation pipe 160, and the other part of the air flow enters the second silencing area 120 through the first air outlet 161 on the first ventilation pipe 160, and the air flow is split through the first ventilation pipe 160 and enters the first silencing area 110 and the second silencing area 120 respectively; the air flow entering the first silencing area 110 collides and then enters the second ventilation pipe 170 through the air inlet end of the second ventilation pipe 170, in addition, the air flow in the second silencing chamber 120 enters the second ventilation pipe 170 through the first air inlet hole 171 arranged on the second ventilation pipe 170, the process is the merging process of the air flow, the air flow is dispersed and then merged, the process has the noise reduction effect on the air flow, the noise reduction capability of the invention can be further improved, and then the air flow enters the third silencing area 130 through the air outlet end of the second ventilation pipe 170; the air flow enters the fourth muffling area 140 through the second air inlet holes 410 on the third baffle 400 after colliding in the third muffling area 130; finally, the airflow is discharged from the exhaust port 190 after colliding in the fourth muffling area 140.
Specifically, the outer side wall of the outer casing is provided with a fixing mechanism 500. In this embodiment, the fixing mechanism 500 is a fixing base made of metal plates, two fixing columns are further arranged on the fixing base, two fixing holes matched with the fixing columns are formed in the outer shell, and the fixing base is fixed in the fixing holes of the outer shell through the fixing columns, so that the connection relationship between the fixing mechanism 500 and the outer shell can be stabilized and enhanced.
Specifically, the fixing mechanism 500 is disposed on the air inlet 180, and the fixing mechanism 500 is provided with an air inlet through slot 510 that communicates with the air inlet 180. In the present embodiment, the fixing mechanism 500 is mounted on the intake port 180, and intake air is taken in through the intake air through-groove 510 on the fixing mechanism 500.
Specifically, each outlet of the first ventilation pipes 160 located in the first silencing area 110 is provided with a first plugging plate 162, and the first plugging plate 162 is provided with a third exhaust hole 1620. In this embodiment, the first blocking plate 162 is a circular plate with a size matching with the inner cavity of the first ventilation pipe 160, and a third exhaust hole 1620 is provided on the first blocking plate 162 for exhausting air, and the first blocking plate 162 is used for changing the rate of the air flow discharged into the first silencing area 110 through the first ventilation pipe 160, and making part of the air flow collide with the first blocking plate 162 for noise reduction and silencing.
Specifically, each second vent pipe 170 located in the first silencing area 110 is provided with a second blocking plate 172 in its inlet, the second blocking plate 172 is provided with a third air inlet hole 1720, each second vent pipe 170 located in the third silencing area 130 is provided with a third blocking plate 174 in its outlet, and the third blocking plate 174 is provided with a fourth air outlet hole 1740. In this embodiment, the second and third plugging plates 172 and 174 are applied in the same manner as the first plugging plate 162.
Specifically, a plurality of second exhaust holes 173 are formed in each of the second ventilation pipes 170 located in the third muffler area 130. In this embodiment, the second exhaust holes 173 are configured to be capable of dispersing the airflow, and changing the direction of the airflow entering the third silencing area 130 from the second ventilation pipe 170, in this embodiment, 4 second exhaust holes 173 are equidistantly arranged on the second ventilation pipe 170, the airflow entering the third silencing area 130 through the second exhaust holes 173 is divided into 4 directions, and the airflow entering the third silencing area 130 through the 4 second exhaust holes 173 and the airflow entering the third silencing area 130 through the fourth exhaust holes 1740 on the third plugging plate 174 are converged in the third silencing area 130.
Specifically, the outer casing includes an upper casing cover 600, a casing body 700 and a lower casing cover 800, one end of the casing body 700 is connected with the upper casing cover 600, the other end of the casing body 700 is connected with the lower casing cover 800, the air inlet 180 is located on the outer side wall of the casing body 700, the air outlet 190 is located on the lower casing cover 800, and the air outlet 190 is provided with an air outlet pipe 191. In this embodiment, the outer casing includes an upper casing cover 600, a casing body 700 and a lower casing cover 800, which is convenient for assembly and disassembly of each component during the early production and manufacture and during the later maintenance and replacement, the exhaust pipe 191 is used for exhausting the air flow after the noise reduction treatment, and the exhaust pipe 191 is arranged to prevent a part of water or dust from easily entering the inner part of the outer casing.
Specifically, the outlet end face of the exhaust pipe 191 is an inclined plane. In this embodiment, the design that the outlet end face of the exhaust pipe 191 is an inclined plane can adjust the trend of the air flow during the air flow discharging, so that the air flow flows in the direction perpendicular to the inclined plane during the air flow discharging, when the invention is matched with the unmanned aerial vehicle power generation system, the inclined plane faces to the side away from the unmanned aerial vehicle, thus being capable of avoiding oily air from flowing to the unmanned aerial vehicle and ensuring the cleanliness of the human machine; in addition, the longer side of the exhaust pipe faces upwards, and the shorter side faces downwards, so that the waterproof and dustproof effects can be achieved during use.
Specifically, the plurality of second air intake holes 410 are located at a side of the sixth partition 133 extending toward the air intake area 150. In this embodiment, this arrangement can lengthen the path of the air flow in the third muffler 130, further improving the muffler noise reduction capability of the present invention.
Example 2:
See fig. 5 and 6. The silencer for the unmanned aerial vehicle power generation system comprises an outer shell, wherein a first baffle 200, a second baffle 300 and a third baffle 400 are sequentially arranged in the outer shell from one end to the other end to divide the interior of the outer shell into a first silencing area 110, a second silencing area 120, a third silencing area 130 and a fourth silencing area 140, a fourth baffle 131, a fifth baffle 132 and a sixth baffle 133 are arranged in the third silencing area 130, the outer edge of one side of the fourth baffle 131 is connected with the inner side wall of the outer shell, the outer edge of one side of the fifth baffle 132 is connected with the inner side wall of the outer shell, one side of the sixth baffle 133 is connected with the outer edge of the other side of the fourth baffle 131, the other side of the sixth baffle 133 is connected with the other side of the fifth baffle 132, the fourth partition plate 131, the fifth partition plate 132, the sixth partition plate 133 and the inner side wall of the outer casing enclose an air inlet area 150, an air inlet 180 is arranged on the outer casing located at the air inlet area 150, at least one first vent pipe 160 penetrating through the fourth partition plate 131, the second partition plate 300 and the first partition plate 200 in sequence is arranged in the outer casing, a plurality of first exhaust holes 161 are arranged on the first vent pipe 160 located in the second silencing area 120, at least one second vent pipe 170 penetrating through the first partition plate 200 and the second partition plate 300 in sequence is arranged in the outer casing, a plurality of first air inlet holes 171 are arranged on the second vent pipe 170 located in the second silencing area 120, a plurality of second air inlet holes 410 are arranged on the third partition plate 400, and an air outlet 190 is arranged on the outer casing located in the fourth silencing area 140.
In this embodiment, the content is the same as that described in embodiment 1, and details are not repeated in this embodiment, which is different from those in embodiment 1 in that, specifically, a sound absorption and filtration mechanism 111 is disposed on a side, close to the second ventilation pipe 170, of the first sound attenuation region 110. In this embodiment, the sound absorption and filtration mechanism 111 is steel wool, which is filled in one side of the first silencing region 110 near the second ventilation tube 170, after the air flow enters the first silencing region 110, the air flow can enter the second ventilation tube 170 after passing through the sound absorption and filtration mechanism 111, and the high-frequency noise in the air flow can be eliminated through the sound absorption and filtration mechanism 111, so that the silencing and noise reduction capability of the invention is further improved, the steel wool is not easy to adsorb greasy dirt, and the usability is higher.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (10)
1. A silencing device for an unmanned aerial vehicle power generation system is characterized by comprising an outer shell, a first baffle plate (200), a second baffle plate (300) and a third baffle plate (400) are sequentially arranged in the outer shell from one end to the other end, the outer shell is internally divided into a first silencing area (110), a second silencing area (120), a third silencing area (130) and a fourth silencing area (140), a fourth baffle plate (131), a fifth baffle plate (132) and a sixth baffle plate (133) are arranged in the third silencing area (130), the outer edge of one side of the fourth baffle plate (131) is connected with the inner side wall of the outer shell, the outer edge of one side of the fifth baffle plate (132) is connected with the inner side wall of the outer shell, one side of the sixth baffle plate (133) is connected with the outer edge of the other side of the fourth baffle plate (131), the other side of the sixth baffle plate (133) is connected with the other side of the fifth baffle plate (132), the fourth baffle plate (131), the fifth baffle plate (132), the sixth baffle plate (132) is connected with the inner side wall of the outer shell to form an air inlet area (150), the outer shell (180) is arranged on the air inlet area (150), at least one air inlet (180) is arranged on the outer shell, at least one second baffle plate (120) penetrates through the fourth baffle plate (160) and a vent pipe (160) is arranged in the outer shell, at least one second vent pipe (170) penetrating through the first partition plate (200) and the second partition plate (300) in sequence is arranged in the outer shell, a plurality of first air inlets (171) are formed in the second vent pipe (170) located in the second silencing region (120), a plurality of second air inlets (410) are formed in the third partition plate (400), and an exhaust port (190) is formed in the outer shell located in the fourth silencing region (140).
2. The silencer for an unmanned aerial vehicle power generation system according to claim 1, wherein a fixing mechanism (500) is provided on the outer side wall of the outer casing.
3. The silencer for the unmanned aerial vehicle power generation system according to claim 2, wherein the fixing mechanism (500) is arranged on the air inlet (180), and an air inlet through groove (510) communicated with the air inlet (180) is formed in the fixing mechanism (500).
4. The silencer for an unmanned aerial vehicle power generation system according to claim 1, wherein a sound absorption and filtration mechanism (111) is arranged on the side, close to the second vent pipe (170), of the first silencing zone (110).
5. The silencer for an unmanned aerial vehicle power generation system according to claim 1, wherein each of the first ventilation pipes (160) located in the first silencing area (110) is provided with a first plugging plate (162), and the first plugging plate (162) is provided with a third exhaust hole (1620).
6. The silencer for the unmanned aerial vehicle power generation system according to claim 1, wherein a second blocking plate (172) is arranged in an inlet of the second vent pipe (170) located in the first silencing area (110), a third air inlet hole (1720) is formed in the second blocking plate (172), a third blocking plate (174) is arranged in an outlet of the second vent pipe (170) located in the third silencing area (130), and a fourth air outlet hole (1740) is formed in the third blocking plate (174).
7. The silencer for an unmanned aerial vehicle power generation system according to claim 1, wherein a plurality of second exhaust holes (173) are provided in each of the second ventilation pipes (170) located in the third silencing area (130).
8. The silencer for an unmanned aerial vehicle power generation system according to claim 1, wherein the outer housing comprises an upper housing cover (600), a housing body (700) and a lower housing cover (800), one end of the housing body (700) is connected with the upper housing cover (600), the other end of the housing body (700) is connected with the lower housing cover (800), the air inlet (180) is located on the outer side wall of the housing body (700), the air outlet (190) is located on the lower housing cover (800), and an exhaust pipe (191) is arranged on the air outlet (190).
9. The silencer for an unmanned aerial vehicle power generation system according to claim 8, wherein the outlet end face of the exhaust pipe (191) is beveled.
10. The silencer for an unmanned aerial vehicle power generation system according to claim 1, wherein the second plurality of air intake holes (410) are located on a side of the sixth partition (133) extending toward the air intake area (150).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111670156.7A CN114109562B (en) | 2021-12-31 | 2021-12-31 | Silencer for unmanned aerial vehicle power generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111670156.7A CN114109562B (en) | 2021-12-31 | 2021-12-31 | Silencer for unmanned aerial vehicle power generation system |
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| Publication Number | Publication Date |
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| CN114109562A CN114109562A (en) | 2022-03-01 |
| CN114109562B true CN114109562B (en) | 2024-05-28 |
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| JP2013241852A (en) * | 2012-05-18 | 2013-12-05 | Yutaka Giken Co Ltd | Engine exhaust muffler |
| CN106014545A (en) * | 2016-06-30 | 2016-10-12 | 泉州市知产茂业工业设计有限公司 | Novel silencer for engine |
| CN107044326A (en) * | 2017-06-01 | 2017-08-15 | 连云港久盛电力辅机有限公司 | A kind of nuclear power generating sets muffler |
| WO2018090439A1 (en) * | 2016-11-15 | 2018-05-24 | 美的集团股份有限公司 | Base and bladeless fan |
| CN209293884U (en) * | 2018-11-26 | 2019-08-23 | 泉州味盛食品有限公司 | A kind of motorcycle noise reducing device |
| CN212154918U (en) * | 2020-03-06 | 2020-12-15 | 宁波吉利汽车研究开发有限公司 | Exhaust pipe silencer |
| CN216381558U (en) * | 2021-12-31 | 2022-04-26 | 中科灵动航空科技成都有限公司 | A silencing device for unmanned aerial vehicle power generation system |
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2021
- 2021-12-31 CN CN202111670156.7A patent/CN114109562B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013241852A (en) * | 2012-05-18 | 2013-12-05 | Yutaka Giken Co Ltd | Engine exhaust muffler |
| CN106014545A (en) * | 2016-06-30 | 2016-10-12 | 泉州市知产茂业工业设计有限公司 | Novel silencer for engine |
| WO2018090439A1 (en) * | 2016-11-15 | 2018-05-24 | 美的集团股份有限公司 | Base and bladeless fan |
| CN107044326A (en) * | 2017-06-01 | 2017-08-15 | 连云港久盛电力辅机有限公司 | A kind of nuclear power generating sets muffler |
| CN209293884U (en) * | 2018-11-26 | 2019-08-23 | 泉州味盛食品有限公司 | A kind of motorcycle noise reducing device |
| CN212154918U (en) * | 2020-03-06 | 2020-12-15 | 宁波吉利汽车研究开发有限公司 | Exhaust pipe silencer |
| CN216381558U (en) * | 2021-12-31 | 2022-04-26 | 中科灵动航空科技成都有限公司 | A silencing device for unmanned aerial vehicle power generation system |
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| Publication number | Publication date |
|---|---|
| CN114109562A (en) | 2022-03-01 |
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