WO2024098541A1 - 一种消声风道装置及充电桩 - Google Patents
一种消声风道装置及充电桩 Download PDFInfo
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- WO2024098541A1 WO2024098541A1 PCT/CN2022/144045 CN2022144045W WO2024098541A1 WO 2024098541 A1 WO2024098541 A1 WO 2024098541A1 CN 2022144045 W CN2022144045 W CN 2022144045W WO 2024098541 A1 WO2024098541 A1 WO 2024098541A1
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- Prior art keywords
- air duct
- micro
- perforated
- silencer
- sound
- Prior art date
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- 230000030279 gene silencing Effects 0.000 title abstract description 14
- 230000003584 silencer Effects 0.000 claims description 65
- 239000011358 absorbing material Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 2
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Definitions
- the present application relates to the technical field of charging piles, and in particular to a silencer air duct device and a charging pile.
- Charging piles are commonly used charging devices for new energy vehicles.
- axial flow fans are used to force air cooling of the charging modules in the charging piles.
- the axial flow fans are installed inside the charging piles. Grille holes are opened on the side panels of the charging piles. Under the action of the axial flow fans, external air enters through the grille holes on the side panels. The axial flow fans generate noise during operation, which is radiated outward through the grille holes on the side panels.
- the first object of the present application is to provide a sound-absorbing air duct device to reduce the noise of the device to be noise-reduced.
- the second purpose of this application is to provide a charging pile.
- a silencer air duct device used for noise reduction of a device to be noise reduced, the silencer air duct device is provided with a silencer air duct and a micro-perforated cavity;
- the two ends of the noise reduction air duct are open, and one end is used to connect to the outside air, and the other end is used to connect to the air inlet or outlet of the device to be noise reduced;
- the micro-perforated cavity is arranged on the gas flow path of the muffler air duct, and is communicated with the muffler air duct through a communication hole opened on the micro-perforated cavity.
- the number of the micro-perforated cavity is at least one, and at least one of the micro-perforated cavity is located in the muffler air duct to separate the muffler air duct into at least two sections with different cross-sections.
- the sound-absorbing air duct device includes a clamping plate assembly and a side plate;
- the clamping plate assembly includes at least two clamping plates, and adjacent clamping plates are arranged at a preset distance.
- the side plates block and fix both sides of the clamping plate assembly to form at least one silencer air duct together with the clamping plates.
- At least one of the adjacent clamping plates is provided with at least one micro-perforated cavity on its surface facing the other, so as to separate the muffler duct into at least two sections with different cross-sections;
- the micro-perforated structures are arranged at intervals along the gas flow direction in the muffler duct.
- At least one of the micro-perforated cavities is alternately arranged on the surfaces facing each other;
- a first air duct of the muffler air duct is enclosed between adjacent micro-perforated cavities, and a second air duct of the muffler air duct is enclosed between the micro-perforated cavity and the facing clamping plate, the first air duct is communicated with the second air duct, and the cross section of the first air duct is different from the cross section of the second air duct to form an expansion cavity air duct;
- the communicating hole is provided on the side wall of the micro-perforated cavity surrounding the first air duct, or is provided on the side wall of the micro-perforated cavity surrounding the second air duct.
- the micro-perforated cavity is mounted on the clamping plate in an adjustable position along the direction from the inlet to the outlet of the muffler air duct.
- one of the micro-perforated cavity and the clamping plate is provided with a slide rail, and the other is provided with a slide groove that slidably cooperates with the slide rail;
- At least one of the micro-perforated cavity and the clamping plate is provided with a long hole or a plurality of connection holes arranged at intervals, and is connected to the other one in an adjustable position by a fastener.
- the clamping plate is adjustably connected to the side plate along a direction approaching or moving away from an adjacent clamping plate.
- one of the clamping plate and the side plate is provided with a guide rail, and the other is provided with a guide groove slidably connected to the guide rail;
- At least one of the clamping plate and the side plate is provided with a long hole or a plurality of connection holes arranged at intervals to adjust the relative position of the clamping plate and the side plate.
- the number of the communicating holes opened on the micro-perforated cavity is multiple;
- the noise-absorbing air duct device also includes a plug that can be detachably sealed to block the communicating hole.
- the number of the plugs is at least 2, and adjacent plugs are connected by connecting strips.
- the sound-absorbing air duct device further includes a layer of sound-absorbing material laid on the inner wall of the sound-absorbing air duct and the inner wall of the micro-perforated cavity respectively.
- the two ends of the muffler air duct have a preset height difference
- the inlet of the silencer air duct is lower than the outlet of the silencer air duct;
- the outlet of the silencer air duct is lower than the inlet of the silencer air duct.
- both ends of the micro-perforated cavity are open and blocked by the side plates
- the splint is provided with a first flange connected to the side plate;
- the side plate is provided with a second flange connected to the device to be noise reduced.
- the silencer air duct device provided in the present application takes the charging pile as an example in which the device to be noise reduced is an example.
- the silencer air duct device is installed on the charging pile so that the gas to be noise reduced generated by the charging pile can enter the silencer air duct for noise reduction. Since the gas flow path of the silencer air duct is connected to a micro-perforated cavity, the gas can enter the micro-perforated cavity for further noise reduction, thereby reducing the noise of the charging pile.
- a charging pile comprising a charging pile body and a noise-reducing air duct device as described above;
- the silencer air duct device is installed at at least one of the air inlet and the air outlet of the charging pile body.
- the charging pile provided in the present application includes any of the above-mentioned silencer air duct devices, the beneficial effects of the above-mentioned silencer air duct devices are all included in the charging pile disclosed in the present application.
- FIG1 is a schematic diagram of the three-dimensional structure of the sound-absorbing air duct device provided in the present application.
- FIG2 is a schematic diagram of the explosion structure of the silencer air duct device provided in the present application.
- FIG3 is a schematic cross-sectional view of the sound-absorbing air duct device provided in the present application.
- FIG4 is a schematic cross-sectional view of a micro-perforated cavity provided in the present application.
- FIG5 is a schematic diagram of a partial three-dimensional structure when a plug is installed at the communicating hole of the micro-perforated cavity provided by the present application;
- FIG6 is a schematic diagram of a three-dimensional structure when the plug and the connecting strip provided by the present application are connected together;
- FIG. 7 is a schematic diagram of a three-dimensional structure of a splint and a micro-perforated cavity assembled together according to an embodiment of the present application;
- FIG8 is a schematic diagram of a three-dimensional structure of a splint and a micro-perforated cavity assembled together according to another embodiment of the present application;
- FIG9 is a partial cross-sectional structural schematic diagram of the sound-absorbing air duct device provided in the present application.
- FIG10 is a schematic diagram of a three-dimensional structure of a micro-perforated cavity provided in the present application.
- FIG11 is a schematic diagram of a three-dimensional structure of a splint provided in the present application.
- FIG12 is a schematic diagram of a partial three-dimensional structure of a micro-perforated cavity and a splint that are slidably connected to each other provided by the present application;
- FIG13 is a schematic diagram of a partial three-dimensional structure of the sound-absorbing material layer installed in the sound-absorbing material layer of the sound-absorbing material layer provided by the present application;
- FIG14 is a schematic diagram of an explosion structure of the connection between the muffler air duct device and the side door provided by the present application;
- FIG. 15 is a schematic cross-sectional view of the fan module and the silencer air duct device provided in the present application when assembled together.
- Silence air duct 101 Silence air duct 101, silencer air duct device 100, micro-perforated cavity 102, connecting hole 102a, splint 103a, splint assembly 103, side panel 104, first air duct 101a, second air duct 101b, slide rail 102b, slide groove 103a-1, limiting hole 103a-3, plug 105, connecting strip 106, sound absorbing material layer 107, second flange 104a, first flange 103a-2, fan module 200, side door 300.
- the first aspect of the present application provides a silencer air duct device 100 for reducing the noise of a device to be reduced.
- the device to be reduced may be a fan module in a charging pile or other device that generates noise.
- the silencer air duct device 100 is provided with silencer air ducts 101 and micro-perforated cavities 102 respectively.
- the number of silencer air ducts 101 and micro-perforated cavities 102 is not limited and is set according to specific needs.
- the two ends of the muffler duct 101 are open, and one end is used to connect to the outside air, and the other end is used to connect to the air inlet or outlet of the device to be noise reduced.
- the muffler duct 101 can be any duct that can achieve noise reduction, and the specific shape and length are set according to the required installation space.
- the micro-perforated cavity 102 is disposed on the gas flow path of the muffler air duct 101, and is connected to the muffler air duct 101 through the connecting hole 102a provided on the micro-perforated cavity 102, and the number of the connecting hole 102a is at least 1.
- the diameter of the connecting hole 102a is d
- the number of the connecting holes 102a is N
- the inner cavity volume of the micro-perforated cavity 102 is V
- the wall thickness of the side wall of the micro-perforated cavity 102 with the connecting holes 102a is t
- the frequency of the muffler of the micro-perforated cavity 102 is in
- G is conductivity
- c is speed of sound
- the frequency of silencing is adjusted by adjusting the aperture of the connecting hole 102 a, the number of the connecting holes 102 a, the thickness of the side wall of the micro-perforated cavity 102 where the connecting holes 102 a are opened, and the inner cavity volume of the micro-perforated cavity 102 .
- the sound absorption air duct device 100 also includes a plug 105.
- the plug 105 can be removably sealed against the connecting hole 102a.
- the plug 105 can be an elastic plug made of rubber material to facilitate disassembly and assembly with the connecting hole 102a.
- the plug 105 can also be made of a rigid material and snap-fitted with the connecting hole 102a.
- the present application discloses that adjacent plugs 105 are connected by connecting strips 106 , as shown in FIG. 6 .
- the connecting strip 106 may be made of the same material as the plug 105 and be integrally formed therewith, or may be made of other materials, and/or the connecting strip 106 and the plug 105 may be detachably connected.
- the silencer air duct device 100 provided in the present application realizes two types of silencers by providing the silencer air duct 101 and the micro-perforated cavity 102, thereby achieving noise reduction of the device to be noise reduced.
- the number of micro-perforated cavities 102 is at least 1, and at least 1 micro-perforated cavity 102 is located in the muffler air duct 101 to separate the muffler air duct 101 into at least 2 sections with different cross-sections, thereby forming an expansion cavity air duct.
- the micro-perforated cavity 102 itself is also used to change a portion of the cross-sectional area of the muffler air duct 101, thereby forming an expansion cavity air duct, avoiding the need to separately set a protrusion in the muffler air duct 101 to change a portion of the cross-sectional area of the muffler air duct 101, thereby reducing the number of components, simplifying the structure, and saving costs.
- the silencer air duct device 100 includes a clamping plate assembly 103 and a side plate 104.
- the clamping plate assembly 103 includes at least two clamping plates 103a, and adjacent clamping plates 103a are spaced apart by a preset distance. It should be noted that the preset distance is specifically set according to the frequency band of the required silencer.
- the side plate 104 blocks and fixes both sides of the clamping plate assembly 103.
- the side plate 104 can be a whole plate that can fix one side of all the clamping plates 103a. Of course, it can also be connected to only two adjacent clamping plates 103a or three clamping plates 103a.
- the side plate 104 and the clamping plates 103a are arranged to form at least one silencer air duct 101. That is to say, when the number of clamping plates 103a is two, the side plate 104 and the two clamping plates 103a are arranged to form one silencer air duct 101, and the side plate 104 and the three clamping plates 103a are arranged to form two silencer air ducts 101, and so on.
- the number of the clamping plates 103a is set according to the specific structure of the noise reduction device to be noise-reduced.
- the number of the noise reduction air ducts 101 is two or more, the regeneration noise caused by the wind grabbing between the air ducts of the noise reduction device is avoided.
- At least one of the adjacent splints 103a is provided with at least one micro-perforated cavity 102 on its surface facing the other. That is, among the adjacent splints 103a, the micro-perforated cavity 102 may be provided on only one splint 103a facing the other, or may be provided on both splints 103a facing the other.
- the micro-perforated structure is arranged at intervals along the gas flow direction in the muffler duct 101 to separate the muffler duct 101 into at least 2 sections with different cross-sections.
- the micro-perforated structure arranged in the muffler duct 101 arranges the muffler duct 101 into an expansion cavity duct including at least 2 sections with different cross-sections, avoiding the need to separately arrange protrusions on the splint 103a to change the cross-section of the muffler duct 101 to form an expansion cavity duct, saving materials and improving the muffler effect.
- the expansion cavity duct is suitable for low and medium frequency muffler, while the micro-perforated cavity 102 is suitable for medium and high frequency muffler, achieving all-round muffler coverage from low frequency to high frequency.
- adjacent splints 103a at least one micro-perforated cavity 102 is respectively arranged on the surfaces facing each other, and in adjacent splints 103a, the micro-perforated cavities 102 on the surfaces facing each other are alternately arranged, as shown in Figure 3.
- the types of splints 103a are divided into two categories, one type is the splints 103a located at both ends of the splint assembly 103, and the micro-perforated cavity 102 is only arranged on one side of this splint 103a, as shown in Figure 7; the other type is located in the middle of the splint assembly 103, and micro-perforated cavities 102 are arranged on both sides of this splint 103a, as shown in Figure 8.
- micro-perforated cavities 102 in the same muffler duct can be exactly the same to eliminate noise in the same frequency band, or they can be set to be different to eliminate noise in different frequency bands.
- the micro-perforated cavities 102 in different muffler ducts can be set to be the same to eliminate noise in the same frequency band, or they can be set to be different to eliminate noise in different frequency bands.
- the first air duct 101a of the muffler air duct 101 is enclosed between adjacent micro-perforated cavities 102. Specifically, as shown in FIG. 9 , the projection of the micro-perforated cavity 102 onto the adjacent micro-perforated cavity 102 falls on the micro-perforated cavity 102, so that the side walls of the adjacent micro-perforated cavity 102 are enclosed as the first air duct 101a.
- the second air duct 101b of the silencer air duct 101 is enclosed between the micro-perforated cavity 102 and the facing splint 103a, the first air duct 101a is connected to the second air duct 101b, and the cross-section of the first air duct 101a is different from the cross-section of the second air duct 101b to form an expansion cavity air duct.
- the cross-section of the first air duct 101a can be larger than the cross-section of the second air duct 101b, or the cross-section of the second air duct 101b can be larger than the cross-section of the first air duct 101a.
- the first air duct 101a and the second air duct 101b connected at both ends are not in a straight line, that is, the wind direction is changed, which further reduces the noise.
- the communication hole 102a is formed on the side wall of the micro-perforated cavity 102 surrounding the first air duct 101a.
- the communication hole 102a can also be formed on the side wall of the micro-perforated cavity 102 surrounding the second air duct 101b.
- the number and diameter of the communicating holes 102 a on different micro-perforated cavities 102 and the inner volume of the micro-perforated cavities 102 may be the same or different.
- both ends of the micro-perforated cavity 102 are open and blocked by the side plates 104. It can be understood that the micro-perforated structure is set at both ends of the micro-perforated cavity 102 along the two ends of the vertical side plates 104. It should be noted that the micro-perforated cavity 102 can also be set as a closed cavity with both ends closed.
- the micro-perforated cavity 102 is adjustably mounted on the clamping plate 103a along the direction from the entrance to the exit of the silencer air duct 101, so as to adjust the distance between the micro-perforated cavity 102, so as to adapt to the silencer of the gas to be denoised in different frequency bands.
- the transmission loss L TL is an important physical quantity for evaluating the amount of noise reduction.
- the transmission loss L TL of each frequency band is calculated by the following formula:
- Lpi is the incident sound pressure level, dB
- Lpt is the transmitted sound pressure level, dB
- Ki is the correction value of the background noise of the incident sound
- Kt is the correction value of the background noise of the transmitted sound
- Si is the upstream cross-sectional area of the silencing channel, m2
- St is the downstream cross-sectional area of the silencing channel, m2 .
- St corresponds to the cross-sectional area of the second air duct 101b
- Si corresponds to the cross-sectional area of the first air duct 101a.
- the present application discloses that one of the micro-perforated cavity 102 and the clamping plate 103a is provided with a slide rail 102b, and the other is provided with a slide groove 103a-1, and the slide rail 102b and the slide groove 103a-1 are slidably matched, as shown in Figures 10 to 12.
- the present application discloses that the cross section of the slide rail 102b is T-shaped, and correspondingly, the cross section of the slide groove 103a-1 is also T-shaped.
- the micro-perforated cavity 102 When the micro-perforated cavity 102 is moved into position, the micro-perforated cavity 102 can be fixed at the position of the clamping plate 103a by fasteners such as bolts.
- the present application discloses a limit hole 103a-3 is opened on the clamping plate 103a, and the sliding length of the micro-perforated cavity 102 is limited by cooperating with the limit hole 103a-3 and the fastener.
- the limit hole 103a-3 is a plurality of limit holes 103a-3 arranged at intervals along the slide groove 103a-1, and the sliding distance of the micro-perforated cavity 102 is adjusted by arranging fasteners in different limit holes 103a-3.
- connection method between the micro-perforated cavity 102 and the splint 103a disclosed above is only a specific embodiment of the present application. In actual applications, it can also be set to other methods.
- at least one of the micro-perforated cavity 102 and the splint 103a is provided with a long hole or a plurality of connection holes arranged at intervals, and the position is adjustable with the other through fasteners.
- the present application discloses that the clamping plate 103 a is adjustably connected to the side plate 104 along a direction approaching or moving away from an adjacent clamping plate 103 a .
- one of the clamping plate 103a and the side plate 104 is provided with a guide rail, and the other is provided with a guide groove, wherein the guide rail and the guide groove are slidably connected.
- At least one of the clamping plate 103a and the side plate 104 may be provided with a long hole or multiple connection holes arranged at intervals to adjust the relative position of the clamping plate 103a and the side plate 104.
- the clamping plate 103a is provided with a first flange 103a-2
- the first flange 103a-2 is provided with a long hole or multiple connection holes arranged at intervals to achieve the connection between the clamping plate 103a and the side plate 104.
- the muffler air duct device 100 further includes a sound absorbing material layer 107, as shown in FIG13 , and it should be noted that the sound absorbing material layer 107 is respectively laid on the inner wall of the muffler air duct 101 and the inner wall of the micro-perforated cavity 102. It can be understood that the sound absorbing material layer 107 may not be laid on the surface of the micro-perforated cavity 102 where the connecting hole 102a is opened, or the sound absorbing material layer 107 may be laid, and when the sound absorbing material layer 107 is laid, the sound absorbing material layer 107 does not block the connecting hole 102a.
- the present application lays a sound absorbing material layer 107 on the inner wall of the muffler air duct 101 and the inner wall of the micro-perforated cavity 102 , and eliminates high and medium frequency noises through the resistive sound elimination of the sound absorbing material layer 107 .
- the two ends of the silencer duct 101 have a preset height difference, which can be reasonably arranged to prevent external rainwater from entering the silencer duct 101 and then entering the device to be noise reduced, thereby damaging the device to be noise reduced.
- the inlet of the silencer air duct 101 is lower than the outlet of the silencer air duct 101 .
- the outlet of the silencer air duct 101 is lower than the inlet of the silencer air duct 101 .
- the side plate 104 is provided with a second flange 104a connected to the device to be noise reduced, so as to facilitate the connection of the whole with the device to be noise reduced through the second flange 104a.
- a second aspect of the present application provides a charging pile, including a charging pile body and a silencer air duct device 100 as in any one of the above embodiments.
- At least one of the air inlet and the air outlet of the charging pile body is installed with a silencer air duct device 100.
- the muffler air duct device 100 is installed in the charging pile body and connected to the side door 300 of the charging pile body.
- the number of muffler channels in the muffler air duct device 100 is equal to the number of fan modules 200 in the charging pile body, and they are arranged one by one.
- the gas flows in the direction shown by the arrow in Figure 15.
- the charging pile provided in the present application includes the silencer air duct device 100 in any one of the above-mentioned embodiments, the beneficial effects of the above-mentioned silencer air duct device 100 are all included in the charging pile disclosed in the present application.
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- Duct Arrangements (AREA)
Abstract
本申请公开了一种消声风道装置及充电桩,消声风道装置上分别设置有消声风道及微穿孔腔体;消声风道的两端开放设置,且一端用于连通外界空气,另一端用于连通待降噪装置的进风口或者出风口;微穿孔腔体设置在消声风道的气体流经路径上,且与消声风道通过微穿孔腔体上开设的连通孔连通。使用时,将消声风道装置安装在待降噪装置上,使得待降噪装置产生的待降噪气体能够进入消声风道的消声风道内,进行降噪,而由于消声风道的气体流经路径上连通有微穿孔腔体,使得气体能够进入微穿孔腔体进行进一步降噪,降低了待降噪装置的噪音。
Description
本申请要求于2022年11月08日提交中国专利局、申请号为202211391928.8、申请名称为“一种消声风道装置及充电桩”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及充电桩技术领域,尤其是涉及一种消声风道装置及充电桩。
充电桩为新能源汽车充电常用的充电装置,为满足充电桩运行的散热需求,采用了轴流风扇对充电桩内的充电模块进行强迫风冷散热。轴流风扇安装在充电桩内部,充电桩的侧部门板上开设有格栅孔,在轴流风扇的作用下,外部空气通过侧部门板的格栅孔进入,轴流风扇运行产生噪声,并经过侧部门板上的格栅孔向外辐射。
随着新能源汽车的不断发展,用于给新能源汽车充电的充电桩等产生噪音的待降噪装置的数量也不断增加,它常常出现在我们生活居住的附近,对附近居民产生了影响。
综上所述,如何降低待降噪装置运行时的噪音是目前本领域技术人员亟待解决的问题。
申请内容
有鉴于此,本申请的第一个目的是提供一种消声风道装置,以便于降低待 降噪装置的噪音。
本申请的第二个目的是提供一种充电桩。
为了实现上述第一个目的,本申请提供了如下方案:
一种消声风道装置,用于待降噪装置的降噪,所述消声风道装置上分别设置有消声风道及微穿孔腔体;
所述消声风道的两端开放设置,且一端用于连通外界空气,另一端用于连通待降噪装置的进风口或者出风口;
所述微穿孔腔体设置在所述消声风道的气体流经路径上,且与所述消声风道通过所述微穿孔腔体上开设的连通孔连通。
在一个具体的实施方案中,所述微穿孔腔体的个数至少为1个,且至少1个所述微穿孔腔***于所述消声风道内,以将所述消声风道分隔为至少2段横截面不同的部分。
在另一个具体的实施方案中,所述消声风道装置包括夹板组件及侧板;
所述夹板组件至少包括2个夹板,且相邻所述夹板之间间隔预设距离设置,所述侧板封堵并固定所述夹板组件的两侧,以与所述夹板围设形成至少1个所述消声风道。
在另一个具体的实施方案中,相邻所述夹板中,至少一者面向对方的面上设置有至少1个所述微穿孔腔体,以将所述消声风道分隔为至少2段横截面不同的部分;
当所述微穿孔腔体的个数大于或者等于2个时,所述微穿孔结构沿着所述消声风道内气体流动方向间隔设置。
在另一个具体的实施方案中,相邻所述夹板中,面向对方的面上分别交替间隔设置有至少1个所述微穿孔腔体;
相邻所述微穿孔腔体之间围设为所述消声风道的第一风道,所述微穿孔腔体与所面向的所述夹板之间围设为所述消声风道的第二风道,所述第一风道与所述第二风道连通,且所述第一风道的横截面与所述第二风道的横截面不同,以形成扩张腔风道;
所述连通孔开设在所述微穿孔腔体围设所述第一风道的侧壁上,或者,开设在所述微穿孔腔体围设所述第二风道的侧壁上。
在另一个具体的实施方案中,所述微穿孔腔体沿着所述消声风道的入口到出口的方向位置可调安装在所述夹板上。
在另一个具体的实施方案中,所述微穿孔腔体及所述夹板中,一者上设置有滑轨,另一者上开设有与所述滑轨滑动配合的滑槽;
或者
所述微穿孔腔体与所述夹板中,至少一者上开设有长条孔或者间隔布置的多个连接孔,与另一者通过紧固件实现位置可调连接。
在另一个具体的实施方案中,所述夹板沿着靠近或者远离相邻所述夹板的方向与所述侧板位置可调连接。
在另一个具体的实施方案中,所述夹板与所述侧板中,一者上设置有导轨,另一者上开设有与所述导轨滑动连接的导槽;
或者
所述夹板与所述侧板中,至少一者上开设有长条孔或者间隔布置的多个连接孔,以调节所述夹板与所述侧板的相对位置。
在另一个具体的实施方案中,所述微穿孔腔体上开设的连通孔的个数为多个;
所述消声风道装置还包括可拆卸封堵所述连通孔的堵头。
在另一个具体的实施方案中,所述堵头的个数为至少为2个,且相邻所述堵头之间通过连接条连接。
在另一个具体的实施方案中,所述消声风道装置还包括分别铺设在所述消声风道的内壁及所述微穿孔腔体的内壁上的吸声材料层。
在另一个具体的实施方案中,所述消声风道的两端具有预设高度差;
当所述消声风道装置安装在所述待降噪装置的进风口时,所述消声风道的入口低于所述消声风道的出口;
当所述消声风道安装在所述待降噪装置的出风口时,所述消声风道的出口低于所述消声风道的入口。
在另一个具体的实施方案中,所述微穿孔腔体的两端敞口设置,并通过所述侧板封堵;
和/或
所述夹板上设置有与所述侧板连接的第一翻边;
和/或
所述侧板上设置有与所述待降噪装置连接的第二翻边。
根据本申请的各个实施方案可以根据需要任意组合,这些组合之后所得的实施方案也在本申请范围内,是本申请具体实施方式的一部分。
本申请提供的消声风道装置,以待降噪装置为充电桩为例,使用时,将消声风道装置安装在充电桩上,使得充电桩产生的待降噪气体能够进入消声风道 的消声风道内,进行降噪,而由于消声风道的气体流经路径上连通有微穿孔腔体,使得气体能够进入微穿孔腔体进行进一步降噪,降低了充电桩的噪音。
为了实现上述第二个目的,本申请提供了如下方案:
一种充电桩,包括充电桩主体以及如上述中任一项所述的消声风道装置;
所述充电桩主体的进风口及出风口处,至少一处安装有所述消声风道装置。
由于本申请提供的充电桩包括上述任意一项中的消声风道装置,因此,上述消声风道装置所具有的有益效果均是本申请公开的充电桩所包含的。
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请提供的消声风道装置的三维结构示意图;
图2为本申请提供的消声风道装置的***结构示意图;
图3为本申请提供的消声风道装置的剖视结构示意图;
图4为本申请提供的微穿孔腔体的剖视结构示意图;
图5为本申请提供的微穿孔腔体的连通孔处安装堵头时的局部三维结构示意图;
图6为本申请提供的堵头与连接条连接在一起时的三维结构示意图;
图7为本申请一种实施例提供的夹板与微穿孔腔体装配在一起的三维结构示意图;
图8本申请另一种实施例提供的夹板与微穿孔腔体装配在一起的三维结构示意图;
图9为本申请提供的消声风道装置的局部剖视结构示意图;
图10为本申请提供的微穿孔腔体的三维结构示意图;
图11为本申请提供的夹板的三维结构示意图;
图12为本申请提供的微穿孔腔体与夹板可滑移连接的局部三维结构示意图;
图13为本申请提供的消声风道装置安装吸声材料层时的局部三维结构示意图;
图14为本申请提供的消声风道装置与侧门连接的***结构示意图;
图15为本申请提供的风扇模块与消声风道装置装配在一起时的剖视结构示意图。
其中,图1-图15中:
消声风道101、消声风道装置100、微穿孔腔体102、连通孔102a、夹板103a、夹板组件103、侧板104、第一风道101a、第二风道101b、滑轨102b、滑槽103a-1、限位孔103a-3、堵头105、连接条106、吸声材料层107、第二翻边104a、第一翻边103a-2、风扇模块200、侧门300。
下面将结合本申请实施例中的附图1-15,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
在本申请的描述中,需要理解的是,术语“上”、“下”、“顶面”、“底面”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的位置或元件必须具有特定方位、以特定的方位构成和操作,因此不能理解为本申请的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性。
结合图1-图3所示,本申请第一方面提供了一种消声风道装置100,用于降低待降噪装置的噪音,待降噪装置可以是充电桩内的风扇模块,也可以是其它产生噪音的装置。
消声风道装置100上分别设置有消声风道101及微穿孔腔体102,消声风道101及微穿孔腔体102的个数不限,具体根据需要进行设定。
消声风道101的两端开放设置,且一端用于连通外界空气,另一端用于连通待降噪装置的进风口或者出风口。需要说明的是,消声风道101可以是任意能够实现消声降噪的风道,具体形状及长度依据所需安装空间进行设定。
微穿孔腔体102设置在消声风道101的气体流经路径上,且与消声风道101通过微穿孔腔体102上开设的连通孔102a连通,连通孔102a的个数至少为1个。如图4所示,以连通孔102a的直径为d,连通孔102a的数量为N,微穿孔腔体102的内腔体积为V,微穿孔腔体102开设连通孔102a的侧壁的 壁厚为t,则微穿孔腔体102所消声的频率为
其中,
G为传导率,c为声速,通过调节连通孔102a的孔径、连通孔102a的数量、微穿孔腔体102开设连通孔102a的侧壁的壁厚以及微穿孔腔体102的内腔体积来调节消音的频率。
当连通孔102a的个数为多个,且需要调节连通孔102a的个数,以实现所要消声的频率的调节,本申请公开了消声风道装置100还包括堵头105,如图5所示,堵头105可拆卸封堵连通孔102a,需要说明的是,堵头105可以是橡胶材料制成的弹性堵头,以便于实现与连通孔102a的拆装,当然,也可以设置堵头105为刚性材质,与连通孔102a卡接等。
当堵头105的个数为至少为2个时,为了便于提高堵头105与连通孔102a的拆装效率,本申请公开了相邻堵头105之间通过连接条106连接,如图6所示。
连接条106可以是与堵头105材质相同且一体成型连接,也可以是其它材质,和/或,连接条106与堵头105可拆卸连接。
本申请提供的消声风道装置100,通过设置消声风道101及微穿孔腔体102,实现了两种方式的消音,从而实现了待降噪装置的降噪。
在一些实施例中,微穿孔腔体102的个数至少为1个,且至少1个微穿孔腔体102位于消声风道101内,以将消声风道101分隔为至少2段横截面不同的部分,从而以形成扩张腔风道。也就是说,微穿孔腔体102自身除了作为消声的作用外,还用于改变消声风道101的一部分横截面面积,从而形成扩张腔风道,避免了消声风道101内再单独设置凸起等来改变消声风道101的一部分横截面,减少了部件数量,简化了结构,节省了成本。
在一些实施例中,消声风道装置100包括夹板组件103及侧板104,夹板组件103至少包括2个夹板103a,且相邻夹板103a之间间隔预设距离设置,需要说明的是,预设距离具体根据所需消声的频段进行设定。
侧板104封堵并固定夹板组件103的两侧,具体地,侧板104可以是一整块板,能够固定全部夹板103a的一侧,当然,也可以是仅连接相邻2个夹板103a或者3个夹板103a等。侧板104与夹板103a围设形成至少1个消声风道101,也就是说,当夹板103a的个数为2个时,侧板104与2个夹板103a围设为1个消声风道101,侧板104与3个夹板103a围设为2个消声风道101,依次类推,具体所设置夹板103a的个数根据所需降噪的待降噪装置的具体结构进行设定。当消声风道101的个数为2个或者2个以上时,避免了待降噪装置的风道之间抢风引起的再生噪声。
在一些实施例中,相邻夹板103a中,至少一者面向对方的面上设置有至少1个微穿孔腔体102。也就是说,相邻夹板103a中,可以是仅在1个夹板103a面向对方的面上设置微穿孔腔体102,也可以同时在2个夹板103a面向对方的面上设置微穿孔腔体102。
当1个消声风道101内的微穿孔腔体102的个数大于或者等于2个时,微穿孔结构沿着消声风道101内气体流动方向间隔设置,以将消声风道101分隔为至少2段横截面不同的部分。也就是说,消声风道101内设置的微穿孔结构将消声风道101设置为包含至少2段横截面不同的扩张腔风道,避免了在夹板103a上单独设置凸起改变消声风道101的横截面来形成扩张腔风道,节省了材料,且提高了消声效果。此外,扩张腔风道适用于低中频消声,而微穿孔腔体102适用于中高频消声,实现了从低频到高频的全方位消音覆盖。
进一步地,相邻夹板103a中,面向对方的面上分别设置有至少1个微穿孔腔体102,且相邻夹板103a中,面向对方的面上的微穿孔腔体102交替设置,如图3所示,以相邻夹板103a中,面向对方的面上分别设置1个微穿孔腔体102,且这2个微穿孔腔体102分别位于这2个夹板103a的不同端为例,夹板103a的种类分为了2类,1类位于夹板组件103两端的夹板103a,该种夹板103a上仅一面设置微穿孔腔体102,如图7所示;另1类位于夹板组件103的中间,该种夹板103a上两面均设置有微穿孔腔体102,如图8所示。
需要说明的是,同一消声风道内的不同微穿孔腔体102可以完全相同,用于消除同一频段的噪音,也可以设置为不同,以消除不同频段的噪音。同理,不同消声风道内的微穿孔腔体102可以设置为相同,以消除同一频段的噪音,也可以设置为不同,以消除不同频段的噪音。
相邻微穿孔腔体102之间围设为消声风道101的第一风道101a,具体地,如图9所示,微穿孔腔体102向相邻微穿孔腔体102的投影落在该微穿孔腔体102上,因此,使得相邻微穿孔腔体102的侧壁围设为第一风道101a。
微穿孔腔体102与所面向的夹板103a之间围设为消声风道101的第二风道101b,第一风道101a与第二风道101b连通,且第一风道101a的横截面与第二风道101b的横截面不同,以形成扩张腔风道,具体地,可以是第一风道101a的横截面大于第二风道101b的横截面,也可以是第二风道101b的横截面大于第一风道101a的横截面,以第一风道101a的横截面大于第二风道101b的横截面为例,如图9所示,第一风道101a与两端所连通的第二风道101b不在一条直线上,即实现了风向的改变,进一步减小了噪音。
连通孔102a开设在微穿孔腔体102围设第一风道101a的侧壁上,当然, 也可以开设在微穿孔腔体102围设第二风道101b的侧壁上。
需要说明的是,不同微穿孔腔体102上的连通孔102a的个数、孔径及微穿孔腔体102的内腔体积可以设置为相同,也可以设置为不同。
进一步地,本申请公开了微穿孔腔体102的两端敞口设置,并通过侧板104封堵。可以理解地,微穿孔腔体102的两端设置微穿孔结构沿着垂直侧板104的两端。需要说明的是,也可以设置微穿孔腔体102为两端封闭的封闭腔体。
在一些实施例中,微穿孔腔体102沿着消声风道101的入口到出口的方向位置可调安装在夹板103a上,从而实现微穿孔腔体102之间距离的调节,便于适应不同频段的待降噪气体的消音。
声波在第一风道101a和第二风道101b的突变处,由于阻抗的不匹配发生反射而引起噪声衰减。声学性能是消音最主要的评价指标,传递损失L
TL作为评价消音量的重要物理量,各频带传递损失L
TL由以下公式计算:
式中,L
pi为入射声声压级,dB;L
pt为透射声声压级,dB;K
i为入射声的背景噪声的修正值,dB;K
t为透射声的背景噪声的修正值,dB;S
i为消音通道上游横截面面积,m
2;S
t为消音通道下游横截面面积,m
2。本实施例中,S
t对应第二风道101b的横截面,S
i对应第一风道101a的横截面,由此可见,调节S
t能够实现不同频带的噪音的消除;调节S
i也能够实现不同频带的噪音的消除。
为了实现调节S
t,本申请公开了微穿孔腔体102及夹板103a中,一者上设置有滑轨102b,另一者上开设有滑槽103a-1,滑轨102b与滑槽103a-1滑动 配合,如图10-图12所示。为了避免滑轨102b从滑槽103a-1内脱落的问题,本申请公开了滑轨102b的横截面为T形,对应地,滑槽103a-1的横截面也为T形。
当微穿孔腔体102移动到位时,可以通过螺栓等紧固件将微穿孔腔体102固定在夹板103a的该位置处。
进一步地,本申请公开了在夹板103a上开设限位孔103a-3,通过限位孔103a-3与紧固件配合实现微穿孔腔体102滑移长度的限定,具体地,限位孔103a-3为沿着滑槽103a-1间隔设置的多个,通过在不同的限位孔103a-3内设置紧固件实现微穿孔腔体102滑移距离的调节。
可以理解地,上述公开的微穿孔腔体102与夹板103a的连接方式仅是本申请的一个具体实施方式,在实际应用中,也可以设置为其它方式,例如,微穿孔腔体102与夹板103a中,至少一者上开设有长条孔或者间隔布置的多个连接孔,与另一者通过紧固件实现位置可调连接。
为了调节S
i,本申请公开了夹板103a沿着靠近或者远离相邻夹板103a的方向与侧板104位置可调连接。
进一步地,本申请公开了夹板103a与侧板104中,一者上设置有导轨,另一者上开设有导槽,其中,导轨与导槽滑动连接。
当然,也可以设置夹板103a与侧板104中,至少一者上开设有长条孔或者间隔布置的多个连接孔,以调节夹板103a与侧板104的相对位置。为了便于连接,本申请公开了夹板103a上设置有第一翻边103a-2,第一翻边103a-2上开设有长条孔或者间隔布置的多个连接孔,以实现夹板103a与侧板104的连接。
在一些实施例中,消声风道装置100还包括吸声材料层107,如图13所示,需要说明的是,吸声材料层107分别铺设在消声风道101的内壁及微穿孔腔体102的内壁上。可以理解地,在微穿孔腔体102的开设连通孔102a的面上,可以不铺设吸声材料层107,也可以铺设吸声材料层107,当铺设吸声材料层107时,吸声材料层107不遮挡连通孔102a。
本申请通过在消声风道101的内壁及微穿孔腔体102的内壁上铺设吸声材料层107,通过吸声材料层107的阻性消声消除高、中频噪声。
在一些实施例中,消声风道101的两端具有预设高度差,通过合理布置,从而避免外部雨水等进入消声风道101内,进而进入待降噪装置内,对待降噪装置产生损坏。
当消声风道装置100安装在待降噪装置的进风口时,消声风道101的入口低于消声风道101的出口。
当消声风道101安装在待降噪装置的出风口时,消声风道101的出口低于消声风道101的入口。
在一些实施例中,侧板104上设置有与待降噪装置连接的第二翻边104a,便于通过第二翻边104a实现整体与待降噪装置的连接。
本申请第二方面提供了一种充电桩,包括充电桩主体以及如上述中任一项实施例中的消声风道装置100。
充电桩主体的进风口及出风口处,至少一处安装有消声风道装置100。
如图14所示,消声风道装置100安装在充电桩主体内,且与充电桩主体的侧门300连接。消声风道装置100中的消声通道的个数与充电桩主体内的风 扇模块200相等,且一一对应设置,气体的流向如图15中的箭头所示方向。
由于本申请提供的充电桩包括上述任意一项实施例中的消声风道装置100,因此,上述消声风道装置100所具有的有益效果均是本申请公开的充电桩所包含的。
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下,在其它实施例中实现。因此,本申请将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和创造特点相一致的最宽的范围。
在本说明书的描述中,参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上公开的本申请优选实施例只是用于帮助阐述本申请。优选实施例并没有详尽叙述所有的细节,也不限制该申请仅为的具体实施方式。显然,根据本说明书的内容,可作很多的修改和变化。本说明书选取并具体描述这些实施例,是为了更好地解释本申请的原理和实际应用,从而使所属技术领域技术人员能很好地理解和利用本申请。本申请仅受权利要求书及其全部范围和等效物的限 制。
Claims (15)
- 一种消声风道装置(100),其特征在于,用于待降噪装置的降噪,所述消声风道装置(100)上分别设置有消声风道(101)及微穿孔腔体(102);所述消声风道(101)的两端开放设置,且一端用于连通外界空气,另一端用于连通待降噪装置的进风口或者出风口;所述微穿孔腔体(102)设置在所述消声风道(101)的气体流经路径上,且与所述消声风道(101)通过所述微穿孔腔体(102)上开设的连通孔(102a)连通。
- 根据权利要求1所述的消声风道装置(100),其特征在于,所述微穿孔腔体(102)的个数至少为1个,且至少1个所述微穿孔腔体(102)位于所述消声风道(101)内,以将所述消声风道(101)分隔为至少2段横截面不同的部分。
- 根据权利要求1所述的消声风道装置(100),其特征在于,包括夹板组件(103)及侧板(104);所述夹板组件(103)至少包括2个夹板(103a),且相邻所述夹板(103a)之间间隔预设距离设置,所述侧板(104)封堵并固定所述夹板组件(103)的两侧,以与所述夹板(103a)围设形成至少1个所述消声风道(101)。
- 根据权利要求3所述的消声风道装置(100),其特征在于,相邻所述夹板(103a)中,至少一者面向对方的面上设置有至少1个所述微穿孔腔体(102),以将所述消声风道(101)分隔为至少2段横截面不同的部分;当所述微穿孔腔体(102)的个数大于或者等于2个时,所述微穿孔结构 沿着所述消声风道(101)内气体流动方向间隔设置。
- 根据权利要求3所述的消声风道装置(100),其特征在于,相邻所述夹板(103a)中,面向对方的面上分别交替间隔设置有至少1个所述微穿孔腔体(102);相邻所述微穿孔腔体(102)之间围设为所述消声风道(101)的第一风道(101a),所述微穿孔腔体(102)与所面向的所述夹板(103a)之间围设为所述消声风道(101)的第二风道(101b),所述第一风道(101a)与所述第二风道(101b)连通,且所述第一风道(101a)的横截面与所述第二风道(101b)的横截面不同,以形成扩张腔风道;所述连通孔(102a)开设在所述微穿孔腔体(102)围设所述第一风道(101a)的侧壁上,或者,所述连通孔(102a)开设在所述微穿孔腔体(102)围设所述第二风道(101b)的侧壁上。
- 根据权利要求5所述的消声风道装置(100),其特征在于,所述微穿孔腔体(102)沿着所述消声风道(101)的入口到出口的方向位置可调安装在所述夹板(103a)上。
- 根据权利要求6所述的消声风道装置(100),其特征在于,所述微穿孔腔体(102)及所述夹板(103a)中,一者上设置有滑轨(102b),另一者上开设有与所述滑轨(102b)滑动配合的滑槽(103a-1);或者所述微穿孔腔体(102)与所述夹板(103a)中,至少一者上开设有长条孔或者间隔布置的多个连接孔,与另一者通过紧固件实现位置可调连接。
- 根据权利要求3所述的消声风道装置(100),其特征在于,所述夹板 (103a)沿着靠近或者远离相邻所述夹板(103a)的方向与所述侧板(104)位置可调连接。
- 根据权利要求8所述的消声风道装置(100),其特征在于,所述夹板(103a)与所述侧板(104)中,一者上设置有导轨,另一者上开设有与所述导轨滑动连接的导槽;或者所述夹板(103a)与所述侧板(104)中,至少一者上开设有长条孔或者间隔布置的多个连接孔,以调节所述夹板(103a)与所述侧板(104)的相对位置。
- 根据权利要求1所述的消声风道装置(100),其特征在于,所述微穿孔腔体(102)上开设的连通孔(102a)的个数为多个;所述消声风道装置(100)还包括可拆卸封堵所述连通孔(102a)的堵头(105)。
- 根据权利要求10所述的消声风道装置(100),其特征在于,所述堵头(105)的个数为至少为2个,且相邻所述堵头(105)之间通过连接条(106)连接。
- 根据权利要求1所述的消声风道装置(100),其特征在于,还包括分别铺设在所述消声风道(101)的内壁及所述微穿孔腔体(102)的内壁上的吸声材料层(107)。
- 根据权利要求1-12中任意一项所述的消声风道装置(100),其特征在于,所述消声风道(101)的两端具有预设高度差;当所述消声风道装置(100)安装在所述待降噪装置的进风口时,所述消 声风道(101)的入口低于所述消声风道(101)的出口;当所述消声风道(101)安装在所述待降噪装置的出风口时,所述消声风道(101)的出口低于所述消声风道(101)的入口。
- 根据权利要求3-9中任意一项所述的消声风道装置(100),其特征在于,所述微穿孔腔体(102)的两端敞口设置,并通过所述侧板(104)封堵;和/或所述夹板(103a)上设置有与所述侧板(104)连接的第一翻边(103a-2);和/或所述侧板(104)上设置有与所述待降噪装置连接的第二翻边(104a)。
- 一种充电桩,其特征在于,包括充电桩主体以及如权利要求1-14中任一项所述的消声风道装置(100);所述充电桩主体的进风口及出风口处,至少一处安装有所述消声风道装置(100)。
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