CN114109562A - A silencing device for unmanned aerial vehicle power generation system - Google Patents

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 that the noise that is used for producing the unmanned aerial vehicle power generation system during operation reduces noise pollution through multistage amortization noise reduction. Technical scheme is, a silencing device 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 divide into first noise damping district in with the shell, the second noise damping district, third noise damping district and fourth noise damping district, be equipped with the fourth baffle in the third noise damping district, fifth baffle and sixth baffle, the fourth baffle, the fifth baffle, sixth baffle encloses into the district of admitting air with the shell body inside wall, be equipped with the air inlet on the shell body that is located district of admitting air department, be equipped with the gas vent on the shell body that is located fourth noise damping district.

Description

A silencing device for unmanned aerial vehicle power generation system

Technical Field

The invention belongs to the technical field of noise reduction of unmanned aerial vehicles, and relates to a noise reduction device for an unmanned aerial vehicle power generation system.

Background

Hybrid unmanned aerial vehicle is a novel double dynamical unmanned aerial vehicle. The power system of the aircraft consists of an electric drive power system and a conventional engine power system, so that the combination of good takeoff and climbing performance, silence and overlong endurance is realized. The sound intensity that hybrid unmanned aerial vehicle's power generation system during operation produced is very big sound, and the sound that directly spreads to the space from engine organism and main annex all belongs to engine noise.

Noise is a by-product of industrial society and is considered to be three major public hazards in the world today, along with atmospheric and water pollution. Noise pollution is created when noise adversely affects people and the surrounding environment. Compared with other two public hazards, the noise has the widest influence range and the most direct feeling, and people reflect the most noise.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:

1. the existing silencer used on an engine has the problems of simple structure, 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 the noise generated by the engine is reduced, the high-frequency noise and the low-frequency noise need to be simultaneously reduced, so that the noise reduction requirement is met;

3. most of the existing silencers are fixed through an independent external device, so that the stability is poor;

4. unmanned aerial vehicle self weight has great influence to unmanned aerial vehicle's transportation flight ability, and among the unmanned aerial vehicle muffler of current, the amortization noise reduction effect of muffler is good, and the muffler is bulky, weight is high, and the muffler is small, weight is low, and the amortization noise reduction throughput is by unsatisfactory.

Disclosure of Invention

In view of this, the present invention aims to provide a silencing device for an unmanned aerial vehicle power generation system, which is used for reducing noise pollution through multi-stage silencing and denoising processing on noise generated by the unmanned aerial vehicle power generation system during operation.

The invention provides a silencer for an unmanned aerial vehicle power generation system, which comprises an outer shell, wherein a first partition plate, a second partition plate and a third partition plate are sequentially arranged in the outer shell from one end to the other end to divide the inner shell into a first silencing area, a second silencing area, a third silencing area and a fourth silencing area, a fourth partition plate, a fifth partition plate and a sixth partition plate are arranged in the third silencing area, the outer edge of one side of the fourth partition plate is connected with the inner side wall of the outer shell, the outer edge of one side of the fifth partition plate is connected with the inner side wall of the outer shell, one side of the sixth partition plate is connected with the outer edge of the other side of the fourth partition plate, the other side of the sixth partition plate is connected with the other side of the fifth partition plate, and the fourth partition plate, The air inlet zone is enclosed by the fifth partition plate, the sixth partition plate and the inner side wall of the outer shell, the air inlet is formed in the outer shell located at the air inlet zone, at least one first ventilating pipe which penetrates through the fourth partition plate, the second partition plate and the first partition plate sequentially is arranged in the outer shell, a plurality of first exhaust holes are formed in the first ventilating pipe located in the second muffling zone, at least one second ventilating pipe which penetrates through the first partition plate and the second partition plate sequentially is arranged in the outer shell, a plurality of first air inlet holes are formed in the second ventilating pipe located in the second muffling zone, a plurality of second air inlet holes are formed in the third partition plate, and an air outlet is formed in the outer shell located in the fourth muffling zone.

According to a specific embodiment of the silencer for the power generation system of the unmanned aerial vehicle, a fixing mechanism is arranged on the outer side wall of the outer shell.

According to a preferred embodiment of the silencing device for the power generation system of the unmanned aerial vehicle, the fixing mechanism is arranged on the air inlet, and the fixing mechanism is provided with an air inlet through groove communicated with the air inlet.

According to a further embodiment of the silencing device for the power generation system of the unmanned aerial vehicle, a sound absorption and filtering mechanism is arranged on one side, close to the second vent pipe, in the first silencing area.

According to a further embodiment of the silencer device for the power generation system of the unmanned aerial vehicle, each first vent pipe positioned in the first silencing area is provided with a first blocking plate in an outlet, and the first blocking plate is provided with a third vent hole.

According to a further embodiment of the silencer for the power generation system of the unmanned aerial vehicle, a second blocking plate is arranged in an inlet of each second vent pipe located in the first silencing area, third air inlet holes are formed in the second blocking plates, a third blocking plate is arranged in an outlet of each second vent pipe located in the third silencing area, and fourth air outlet holes are formed in the third blocking plates.

According to a further embodiment of the silencing device for the power generation system of the unmanned aerial vehicle, each second vent pipe located in the third silencing area is provided with a plurality of second vent holes.

According to a further embodiment of the silencer device for the power generation system of the unmanned aerial vehicle, 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 located on the outer side wall of the shell body, the air outlet is located on the lower shell cover, and the air outlet is provided with an exhaust pipe.

According to a further embodiment of the silencing device for the power generation system of the unmanned aerial vehicle, the outlet end surface of the exhaust pipe is a slope.

According to a further embodiment of the silencing device for the unmanned aerial vehicle power generation system, the plurality of second air inlet holes are located on a side of the sixth partition plate extending towards the air inlet area.

Compared with the prior art, one of the technical solutions has the following advantages:

a) according to the invention, the first partition plate, the second partition plate and the third partition plate are sequentially arranged in the outer shell from one end to the other end, so that the inner shell is divided into the first silencing area, the second silencing area, the third silencing area and the fourth silencing area, the fourth partition plate, the fifth partition plate and the sixth partition plate are arranged in the third silencing area, and the fourth partition plate, the fifth partition plate and the sixth partition plate and the inner side wall of the outer shell form an air inlet area; the air inlet is arranged on the outer shell positioned at the air inlet area, at least one first vent pipe which sequentially penetrates through the fourth clapboard, the second clapboard and the first clapboard is arranged in the outer shell, a plurality of first exhaust holes are arranged on the first vent pipe positioned in the second silencing area, at least one second vent pipe which sequentially penetrates through the first clapboard and the second clapboard is arranged in the outer shell, a plurality of first air inlet holes are arranged on the second vent pipe positioned in the second silencing area, a plurality of second air inlet holes are arranged on the third clapboard, and an exhaust hole is arranged on the outer shell positioned in the fourth silencing area, the invention guides the air flow which needs noise reduction treatment into the outer shell through the air inlet, the air flow is orderly led into and discharged out of each silencing area through the corresponding air inlet hole, the corresponding air outlet hole and the corresponding vent pipe in the outer shell, the path that the extension air current passed through produces the collision in the air current flow process to reach the mesh of amortization.

b) The unmanned aerial vehicle power generation system adopts the fixing mechanism, and the fixing mechanism is convenient for workers to fix the unmanned aerial vehicle power generation system on the unmanned aerial vehicle power generation system.

c) The fixing mechanism is arranged on the air inlet, the air inlet through groove communicated with the air inlet is arranged on the fixing mechanism, on one hand, the fixing mechanism is used for mounting and connecting the fixing mechanism and the unmanned aerial vehicle power generation system, on the other hand, the fixing mechanism can be used as a connecting pipe between the silencer and the power generation system to introduce airflow noise generated by the power generation system into the outer shell, a separate drainage pipe is not required to be arranged for the purpose, and the structure of the invention is simplified.

d) According to the invention, the arrangement that the sound absorption and filtration mechanism is arranged on one side of the first silencing area close to the second vent pipe is adopted, noise is reduced through the sound absorption and filtration mechanism, and the silencing and noise reduction effects of the invention are further improved.

e) According to the invention, the first plugging plate is adopted, and the third vent hole is arranged on the first plugging plate, so that when the airflow is discharged from the third vent hole of the first vent pipe, the airflow is firstly hindered by the first plugging plate to collide with each other for silencing.

f) According to the invention, the second plugging plate is adopted, the third air inlet hole is arranged on the second plugging plate, the third plugging plate is adopted, and the fourth air outlet hole is arranged on the third plugging plate, so that when air flow enters or is discharged from the second air outlet pipe, the air flow is blocked by the second plugging plate and the third plugging plate to generate collision, and the silencing effect of the silencer is further improved.

g) The third silencing area is provided with a plurality of second vent holes, and each second vent hole is arranged on each second vent pipe positioned in the third silencing area, so that air flow can be discharged from the second vent holes of the second vent pipes, the silencing speed of the third silencing area is improved, in addition, the direction of the air flow can be changed, the air flow can enter the third silencing area from different directions, the process is a process of firstly dividing and then converging the air flow, and the silencing and noise reduction capabilities of the third silencing area can be further improved through the process.

h) The outer shell comprises the upper shell cover, the shell body and the lower shell cover, so that the installation work of other parts in the production and manufacturing process is facilitated, and the disassembly and maintenance work in the later use process of a user is facilitated; the invention also adopts the exhaust pipe, the exhaust pipe is used for exhausting the airflow after the noise reduction and silencing treatment, the silencing pipe is arranged, the path of the airflow in the invention can be further prolonged, and impurities such as dust and the like can be prevented from directly entering the outer shell through the exhaust port.

i) The invention adopts the arrangement that the outlet end surface of the exhaust pipe is an inclined surface, can guide the air flow to the direction of the inclined surface, and can lead the inclined surface to face downwards during installation, thereby having the functions of water resistance and dust resistance.

j) According to the invention, the plurality of second air inlets are arranged on one side of the sixth clapboard extending to the air inlet area, so that when air flows into the fourth silencing area through the second air inlets on the third clapboard, the air flow collides with the upper half part of the third clapboard firstly, and then enters the fourth silencing area through the second air inlets arranged on the lower half part of the third clapboard, and the silencing and noise reduction 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 required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the construction 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 of the present invention.

Fig. 5 is a schematic structural diagram of the present invention.

Fig. 6 is a perspective view of fig. 5.

The labels in the figure are respectively: 110 first sound-deadening zone, 111 sound-absorbing filtering mechanism, 120 second sound-deadening zone, 130 third sound-deadening zone, 131 fourth baffle plate, 132 fifth baffle plate, 133 sixth baffle plate, 140 fourth sound-deadening zone, 150 air inlet zone, 160 first vent pipe, 161 first vent hole, 162 first closure plate, 1620 third vent hole, 170 second vent pipe, 171 first air inlet hole, 172 second closure plate, 1720 third air inlet hole, 173 second vent hole, 174 third closure plate, 1740 fourth vent hole, 180 air inlet hole, 190 vent hole, 191 vent pipe, 200 first baffle plate, 300 second baffle plate, 400 third baffle plate, 410 second baffle plate, 500 fixing mechanism, 510 air inlet through groove, 600 upper shell cover, 700 shell body and 800 lower shell cover.

Detailed Description

The following description is made with reference to the accompanying drawings and a specific embodiment.

In order to make 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 described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, 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 numbers and letters refer to 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 subsequent figures.

Example 1:

see fig. 1-4. The silencer for the power generation system of the unmanned aerial vehicle described in this embodiment includes an outer casing, a first partition 200, a second partition 300, and a third partition 400 are sequentially disposed from one end to the other end in the outer casing to divide the inner casing into a first silencing area 110, a second silencing area 120, a third silencing area 130, and a fourth silencing area 140, a fourth partition 131, a fifth partition 132, and a sixth partition 133 are disposed in the third silencing area 130, an outer edge of one side of the fourth partition 131 is connected to an inner side wall of the outer casing, an outer edge of one side of the fifth partition 132 is connected to the inner side wall of the outer casing, one side of the sixth partition 133 is connected to an outer edge of the other side of the fourth partition 131, the other side of the sixth partition 133 is connected to the other side of the fifth partition 132, the fourth partition 131, the fifth partition 132, the sixth partition 133 and the inner side wall of the outer casing form an air intake area 150, an air inlet 180 is disposed on the outer casing at the air intake area 150, the utility model discloses a silencer, including shell body, fourth baffle 131, second baffle 300 and first baffle 200, be equipped with the first breather pipe 160 that runs through fourth baffle 131, second baffle 300 and first baffle 200 in proper order in the shell body at least, be located and be equipped with a plurality of first exhaust holes 161 on the first breather pipe 160 in second amortization district 120, be equipped with a second breather pipe 170 that runs through first baffle 200 and second baffle 300 in proper order in the shell body at least, be located and be equipped with a plurality of first inlet ports 171 on the second breather pipe 170 in second amortization district 120, be equipped with a plurality of second inlet ports 410 on the third baffle 400, be located and be equipped with gas vent 190 on the shell body in fourth amortization district 140. In this embodiment, the outer shell is a cylinder with a hollow interior, and is made of high temperature resistant stainless steel, so that the working stability of the invention in a high temperature environment can be improved. The first partition plate 200, the second partition plate 300 and the third partition plate 400 are circular partition plates matched with the inner cavity of the outer shell, and the outer edges of the first partition plate 200, the second partition plate 300 and the third partition plate 400 extend towards one side to form annular extension parts, so that workers can install and fix the first partition plate 200, the second partition plate 300 and the third partition plate 400 in the inner cavity of the outer shell conveniently. In this embodiment, a fourth partition plate 131 and a fifth partition plate 132 can be obtained by cutting off a small portion of a partition plate having the same shape and size as the first partition plate 200, the second partition plate 300 or the third partition plate 400, the arc-shaped outer edges of the fourth partition plate 131 and the fifth partition plate 132 are connected to the inner wall of the outer shell of the third sound-deadening region 130, then the sixth partition plate 133 is adopted, the sixth partition plate 133 is a rectangular plate in this embodiment, one side of the short side of the sixth partition plate 133 is connected to the cut surface of the fourth partition plate 131, the other side of the cross section of the sixth partition plate 133 is connected to the cut surface of the fifth partition plate 132, both sides of the long side of the sixth partition plate 133 are respectively connected to the inner wall surface of the outer shell, the air intake region 150 is formed in the third sound-deadening region 130 by the fourth partition plate 131, the fifth partition plate 132 and the sixth partition plate 133, it should be noted that the cut surface of the fourth partition plate 131 and the cut surface of the fifth partition plate 132 cannot be regarded as limitations of the present invention, in the above description, it is mentioned that the fourth separator 131 and the fifth separator 132 can be obtained by cutting off a small portion of the separator having the same shape and size as the first separator 200, the second separator 300, or the third separator 400, and therefore, in this embodiment, the separator is referred to as a cut surface for convenience of description, and actually, the fourth separator 131 and the fifth separator 132 can be completely manufactured separately, and in the manufacturing process, the separator having the same shape and size as the first separator 200, the second separator 300, or the third separator 400 can be selected to be obtained by cutting off a small portion of the separator having the same shape and size as the first separator 200, the second separator 300, or the third separator 400.

When the unmanned aerial vehicle power generation system is used, airflow generated by the unmanned aerial vehicle power generation system enters the air intake area 150 in the outer shell through the air inlet 180, then 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 intake area 150 respectively, then enters the first vent pipe 160 through the air intake end of the first vent pipe 160, a part of the airflow in the first vent pipe 160 directly enters the first muffling area 110 through the air outlet end of the first vent pipe 160, and the other part of the airflow enters the second muffling area 120 through the first air outlet 161 on the first vent pipe 160, and the process is that the airflow is divided through the first vent pipe 160 and enters the first muffling area 110 and the second muffling area 120 respectively; the air flow entering the first muffling area 110 enters the second vent pipe 170 through the air inlet end of the second vent pipe 170 after collision, and in addition, the air flow in the second muffling chamber 120 enters the second vent pipe 170 through the first air inlet hole 171 arranged on the second vent pipe 170, the process is a converging process of the air flow, the air flow is firstly dispersed and then converged, the process has a 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 muffling area 130 through the air outlet end of the second vent pipe 170; after colliding in the third muffling area 130, the air flow enters the fourth muffling area 140 through the second air inlet holes 410 on the third partition 400; finally, the air streams are exhausted from the exhaust ports 190 after colliding in the fourth muffling zone 140.

Specifically, the outer side wall of the outer shell is provided with a fixing mechanism 500. In this embodiment, fixing mechanism 500 still is provided with two fixed columns for the fixing base that adopts the panel beating to make on the fixing base, be equipped with on the shell body two with fixed column complex fixed orifices, the fixing base passes through the fixed column installation to be fixed in the fixed orifices of shell body, can stabilize and strengthen the relation of connection of fixing mechanism 500 and shell body.

Specifically, the fixing mechanism 500 is disposed on the air inlet 180, and the air inlet through groove 510 communicated with the air inlet 180 is disposed on the fixing mechanism 500. In the present embodiment, the fixing mechanism 500 is mounted on the air inlet 180, and air is introduced through the air inlet channel 510 on the fixing mechanism 500.

Specifically, each first blocking plate 162 is disposed in an outlet of the first vent pipe 160 located in the first muffling area 110, and a third vent hole 1620 is disposed on the first blocking plate 162. In this embodiment, the first blocking plate 162 is a circular plate adapted to the size of the inner cavity of the first vent pipe 160, the first blocking plate 162 is provided with a third vent hole 1620 for venting air, and the first blocking plate 162 is used to change the rate at which the air is vented into the first muffling area 110 through the first vent pipe 160 and make a part of the air collide with the first blocking plate 162 for noise reduction and muffling.

Specifically, each second blocking plate 172 is disposed in an inlet of the second vent pipe 170 located in the first muffling area 110, the second blocking plate 172 is provided with a third air inlet 1720, each second vent pipe 170 located in the third muffling area 130 is provided with a third blocking plate 174, and the third blocking plate 174 is provided with a fourth air outlet 1740. In this embodiment, the second and third blanking panels 172, 174 are applied in the same manner as the first blanking panel 162.

Specifically, each of the second ventilation pipes 170 located in the third muffling area 130 is provided with a plurality of second ventilation holes 173. In this embodiment, the second air outlet holes 173 are arranged to split the air flow and change the direction of the air flow entering the third muffling area 130 from the second air outlet pipe 170, in this embodiment, there are 4 second air outlet holes 173, which are equidistantly arranged on the second air outlet pipe 170, the air flow entering the third muffling area 130 through the second air outlet holes 173 is divided into 4 directions, and the air flow entering the third muffling area 130 through the 4 second air outlet holes 173 and the air flow entering the third muffling area 130 through the fourth air outlet holes 1740 on the third blocking plate 174 are merged in the third muffling area 130.

Specifically, the outer casing includes upper shell cover 600, casing body 700 and lower shell cover 800, the one end and the upper shell cover 600 of casing body 700 are connected, the other end and the lower shell cover 800 of casing body 700 are connected, air inlet 180 is located the lateral wall of casing body 700, gas vent 190 is located lower shell cover 800, be equipped with blast pipe 191 on the gas vent 190. In this embodiment, the outer casing includes an upper casing cover 600, a casing body 700, and a lower casing cover 800, which facilitate the assembly and disassembly of each component during the early production and manufacture and the later maintenance and replacement, and the exhaust pipe 191 is used to exhaust the airflow after the noise reduction and reduction treatment, and the exhaust pipe 191 is provided to prevent a part of water or dust from easily entering the inner part of the outer casing.

Specifically, the outlet end surface of the exhaust pipe 191 is an inclined surface. In the embodiment, the design that the outlet end face of the exhaust pipe 191 is an inclined plane can adjust the trend of the airflow during exhaust, so that the airflow flows in the vertical direction of the inclined plane during exhaust; in addition, the longer side of the exhaust pipe faces upwards, and the shorter side faces downwards, so that the exhaust pipe can also play a role in preventing water and dust when in use.

Specifically, the plurality of second intake holes 410 are located at a side of the sixth partition 133 extending toward the intake area 150. In the present embodiment, the arrangement can extend the path of the airflow in the third muffling 130, and further improve the muffling and noise reduction capability of the present invention.

Example 2:

see fig. 5 and 6. The invention discloses a silencer for an unmanned aerial vehicle power generation system, which comprises an outer shell, wherein a first clapboard 200, a second clapboard 300 and a third clapboard 400 are sequentially arranged in the outer shell from one end to the other end to divide the inner 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 clapboard 131, a fifth clapboard 132 and a sixth clapboard 133 are arranged in the third silencing area 130, the outer edge of one side of the fourth clapboard 131 is connected with the inner side wall of the outer shell, the outer edge of one side of the fifth clapboard 132 is connected with the inner side wall of the outer shell, one side of the sixth clapboard 133 is connected with the outer edge of the other side of the fourth clapboard 131, the other side of the sixth clapboard 133 is connected with the other side of the fifth clapboard 132, the fourth clapboard 131, the fifth clapboard 132 and the sixth clapboard 133 and the inner side wall of the outer shell form an air inlet area 150 in a surrounding manner, an air inlet 180 is arranged on the outer shell at the air inlet area 150, the utility model discloses a silencer, including shell body, fourth baffle 131, second baffle 300 and first baffle 200, be equipped with the first breather pipe 160 that runs through fourth baffle 131, second baffle 300 and first baffle 200 in proper order in the shell body at least, be located and be equipped with a plurality of first exhaust holes 161 on the first breather pipe 160 in second amortization district 120, be equipped with a second breather pipe 170 that runs through first baffle 200 and second baffle 300 in proper order in the shell body at least, be located and be equipped with a plurality of first inlet ports 171 on the second breather pipe 170 in second amortization district 120, be equipped with a plurality of second inlet ports 410 on the third baffle 400, be located and be equipped with gas vent 190 on the shell body in fourth amortization district 140.

In this embodiment, the above contents are the same as those in embodiment 1, and no further description is given in this embodiment, and a difference in this embodiment from embodiment 1 is that, specifically, a sound absorption filtering mechanism 111 is disposed on a side of the first sound attenuation region 110 close to the second vent pipe 170. In this embodiment, the sound absorption filter mechanism 111 is steel wool, and is filled in one side of the first sound absorption region 110 close to the second vent pipe 170, after the air flow enters the first sound absorption region 110, the air flow can enter the second vent pipe 170 only after passing through the sound absorption filter mechanism 111, and the sound absorption filter mechanism 111 can eliminate high-frequency noise in the air flow, so that the sound absorption and noise reduction capability of the present invention is further improved, and the steel wool is not easy to absorb oil stains, and has high usability.

In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the 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 these modifications and adaptations should be considered within the scope of the invention.

Claims (10)

1. The utility model provides a silencing device for unmanned aerial vehicle power generation system, a serial communication port, including the shell body, be equipped with first baffle (200), second baffle (300) and third baffle (400) in proper order from one end to the other end in the shell body and divide into first amortization district (110), second amortization district (120), third amortization district (130) and fourth amortization district (140) in the shell body, be equipped with fourth baffle (131), fifth baffle (132) and sixth baffle (133) in third amortization district (130), the outer edge and the shell body inside wall of fourth baffle (131) one side are connected, the outer edge and the shell body inside wall of fifth baffle (132) one side are connected, one side and the opposite side of fourth baffle (131) of sixth baffle (133) are connected along outward, the opposite side and the opposite side of fifth baffle (132) of sixth baffle (133) are connected, fourth baffle (131) have, The fifth clapboard (132), the sixth clapboard (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 breather pipe (160) which sequentially penetrates through the fourth partition plate (131), the second partition plate (300) and the first partition plate (200) is arranged in the outer shell, a plurality of first exhaust holes (161) are arranged on the first breather pipe (160) positioned in the second muffling area (120), at least one second vent pipe (170) which sequentially penetrates through the first partition board (200) and the second partition board (300) is arranged in the outer shell, a plurality of first air inlet holes (171) are arranged on the second vent pipe (170) positioned in the second silencing area (120), a plurality of second air inlet holes (410) are formed in the third partition plate (400), and an air outlet (190) is formed in the outer shell positioned in the fourth silencing area (140).

2. The silencer device for the UAV power generation system of claim 1, wherein the outer housing has a fixing mechanism (500) on an outer sidewall.

3. The silencer device for the UAV power generation system of claim 2, wherein 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) communicated with the air inlet (180).

4. The muffling device for a drone generating system according to claim 1, wherein a sound absorbing and filtering mechanism (111) is provided inside the first muffling area (110) on a side close to the second vent pipe (170).

5. A silencer device for a drone generating system according to claim 1, characterised in that each first vent pipe (160) located in the first silencing zone (110) has a first blanking plate (162) in its outlet, said first blanking plate (162) having a third vent hole (1620).

6. The silencing device for the power generation system of the unmanned aerial vehicle as claimed in claim 1, wherein each second vent pipe (170) located in the first silencing region (110) is provided with a second blocking plate (172), the second blocking plate (172) is provided with a third air inlet hole (1720), each second vent pipe (170) located in the third silencing region (130) is provided with a third blocking plate (174), and the third blocking plate (174) is provided with a fourth air outlet hole (1740).

7. The silencer device for the unmanned aerial vehicle power generation system of claim 1, wherein each second vent pipe (170) located in the third silencing zone (130) is provided with a plurality of second vent holes (173).

8. The silencer device for the power generation system of the unmanned aerial vehicle as claimed in claim 1, wherein the outer casing comprises 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 an exhaust pipe (191) is arranged on the air outlet (190).

9. The silencer device for the unmanned aerial vehicle power generation system of claim 8, wherein an outlet end face of the exhaust pipe (191) is beveled.

10. A silencer device for a drone generating system according to claim 1, characterised in that the second plurality of air intake apertures (410) are located on the side of the sixth baffle (133) that extends towards the air intake zone (150).

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