WO2018103151A1 - 基座及无叶风扇 - Google Patents

基座及无叶风扇 Download PDF

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Publication number
WO2018103151A1
WO2018103151A1 PCT/CN2016/112102 CN2016112102W WO2018103151A1 WO 2018103151 A1 WO2018103151 A1 WO 2018103151A1 CN 2016112102 W CN2016112102 W CN 2016112102W WO 2018103151 A1 WO2018103151 A1 WO 2018103151A1
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WO
WIPO (PCT)
Prior art keywords
muffler cover
muffler
power system
impeller
tension springs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/112102
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English (en)
French (fr)
Inventor
程杰锋
李忠华
魏喜明
王跃
王学超
李长明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
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Midea Group Co Ltd
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Filing date
Publication date
Application filed by Midea Group Co Ltd filed Critical Midea Group Co Ltd
Publication of WO2018103151A1 publication Critical patent/WO2018103151A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • 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
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation

Definitions

  • the present invention relates to the field of fans, and more particularly to a base and a bladeless fan.
  • Existing leafless fans include a base.
  • the base includes a housing and a power system disposed within the housing.
  • the outer casing is formed with an air inlet, and during operation, the power system draws in air through the air inlet and establishes an air flow.
  • the noise generated by the power system can spread out through the air inlet, resulting in a noisy fanless noise.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a pedestal and a bladeless fan.
  • the base of the embodiment of the present invention is used for a bladeless fan, the base includes: a casing, the casing includes an outer wall, the outer wall is formed with an air inlet; and a power system disposed in the casing is used for passing
  • the air intake port takes in air and establishes an air flow, the power system is formed with an air inlet; and a sound absorbing structure disposed in the casing, the sound absorbing structure includes: a first muffler cover, the first muffler cover is formed a first muffler, the first muffler is provided with a first via hole connecting the first muffler cavity and the air inlet, and the cross-sectional area of the first via hole is smaller than that of the first muffler cavity a cross-sectional area; and a second muffler cover housed in the first muffler cover, the second muffler cover enclosing the air inlet, the second muffler cover forming a second muffler cavity communicating with the air
  • the first muffler is formed with a plurality of first sound tubes extending into the first silencing chamber, and the first sound tube is formed with the first conductive holes.
  • the length of the first sound tube extending into the first silencing chamber is 5-15 mm; and/or
  • the second muffler cover is formed with a plurality of second sound tubes extending into the second silencing chamber, the second sound tube is formed with the second conductive holes, and the second sound tube extends
  • the length of the second silencing chamber is 5-15 mm.
  • the first muffler cover and the second muffler cover are both cylindrical, and the first muffler cover is disposed coaxially with the second muffler cover.
  • the number of the first via holes is plural, and the plurality of the first via holes are distributed in a plurality of first arrays spaced apart around the circumferential direction of the first muffler cover,
  • the number of the second via holes is plural, and the plurality of the second via holes are distributed in a plurality of second arrays spaced apart around the circumferential direction of the second muffler cover.
  • the first array and the second array are staggered.
  • the number of the first via holes ranges from 20 to 65, and/or the number of the second via holes ranges from 20 to 65.
  • the first via hole and the second via hole are both cylindrical.
  • the first via hole has a diameter ranging from 5 to 17 mm, and/or
  • the second via hole has a diameter ranging from 5 to 17 mm.
  • the sound absorbing structure includes a mounting plate coupled to the first muffler cover and the second muffler cover, the muffling structure being secured to the housing by the mounting plate.
  • the base includes a sound absorbing cotton disposed between the first muffler cover and the second muffler cover, the sound absorbing cotton covering the first through hole and the second Via hole.
  • the housing includes a baffle extending inwardly from the outer wall, the muffling structure being secured to the baffle.
  • the base comprises:
  • the plurality of tension springs are stretched to connect the first fixing piece and the power system, and the second fixing piece and the power system are stretched and connected.
  • the plurality of tension springs comprise two sets, two sets of tension springs are disposed along an axial interval of the power system, each set of tension springs includes three tension springs, and the three tensions Springs are arranged along the circumferential direction of the power system;
  • One set of tension springs is stretched to connect the first fixed piece and the power system, and another set of the tension springs are stretched to connect the second fixed piece and the power system.
  • the three tension springs are evenly spaced along the circumference of the power system.
  • each of the tension springs has a stiffness coefficient of 2-4 N/mm and an original length range of 15-25 mm.
  • the power system includes:
  • An impeller casing the impeller casing being mounted in the casing;
  • An impeller the impeller being disposed within the impeller casing;
  • a diffuser disposed downstream of the airflow generated by the impeller, the diffuser being coupled to the impeller casing;
  • a motor housing for fixing the motor is formed outside the motor, and the motor and the motor housing are both disposed between the diffuser and the impeller, and the motor housing is connected to the impeller housing.
  • the outer wall is annular, and the air inlet includes a plurality of air intake holes arranged in a circumferential direction of the outer wall.
  • each of the inlet apertures is circular and has a diameter of 1-3 mm.
  • the air inlet holes are arranged in a plurality of arrays along the circumferential direction of the outer wall, and two adjacent arrays are spaced apart.
  • a bladeless fan according to an embodiment of the present invention includes the susceptor according to any of the above embodiments.
  • the cross-sectional area of the first via hole is smaller than the cross-sectional area of the first silencing cavity
  • the cross-sectional area of the second via hole is smaller than the cross-sectional area of the second muffler cavity, and the power system
  • the noise generated during operation is more difficult to propagate from the second muffler cavity having a large cross-sectional area to the second via hole having a small cross-sectional area, and is difficult to propagate from the first muffler cavity having a large cross-sectional area to the first via hole having a small cross-sectional area.
  • the sound is reflected back and forth inside the first muffler cavity and inside the second muffler cavity, thereby reducing the noise when the bladeless fan is working.
  • FIG. 1 is a perspective view of a bladeless fan according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a susceptor according to an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional perspective view of a susceptor according to an embodiment of the present invention.
  • FIG. 4 is a perspective view showing the internal structure of a susceptor according to an embodiment of the present invention.
  • Figure 5 is a perspective view of a sound absorbing structure according to an embodiment of the present invention.
  • FIG. 6 is another schematic cross-sectional view of a susceptor according to an embodiment of the present invention.
  • Fig. 7 is a schematic view showing a sound pressure curve of a bladeless fan according to an embodiment of the present invention.
  • a housing 10 a bottom plate 11, an outer wall 12, an air inlet 121, an air inlet 1211, a partition 14, a through hole 141;
  • the fan head 102 and the nozzle 1021 The fan head 102 and the nozzle 1021.
  • first and second 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, features defining “first” and “second” may explicitly or implicitly include one or more of the specified features. Sign. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • Connected, or integrally connected may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature "above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.
  • a bladeless fan 1000 of an embodiment of the present invention includes a base 100 and a fan head 102.
  • the fan head 102 is disposed on the base 100.
  • the fan head 102 can blow out the wind.
  • the bladeless fan 1000 is not easy to hurt the user's hand because there is no exposed fan blade. Refers to the parts, therefore, the bladeless fan 1000 has a safety feature.
  • the bladeless fan 1000 is small in size, making it easy for the user to clean the leafless fan 1000.
  • the base 100 includes a housing 10 , a power system 20 , and a sound absorbing structure 40 .
  • the power system 20 is disposed within the housing 10.
  • the muffling structure 40 is disposed within the housing 10.
  • the housing 10 includes a bottom plate 11 and an outer wall 12.
  • the bottom plate 11 extends outward from the outer wall 12 so that the bladeless fan 1000 can be stably supported on the support surface, such as a plane such as a floor or a table top.
  • the outer wall 12 is annular, and the annular outer wall 12 makes the bladeless fan 1000 more aesthetically pleasing, and the surface area of the outer wall 12 can be increased to make the inlet area larger.
  • the outer wall 12 is formed with an air inlet 121, and the air inlet 121 is formed with a plurality of air intake holes 1211 arranged in an array.
  • the air inlet 121 enables the power system 20 to draw in air to establish an air flow, such that the bladeless fan 1000 can form a wind to meet the needs of the user.
  • a plurality of intake holes 1211 are distributed along the circumferential direction of the outer wall 12. This results in a larger air intake area of the air inlet 121, which is advantageous for increasing the flow of air into the susceptor 100. In addition, it is also possible to allow air to enter from the periphery of the casing 10 to make the airflow into the susceptor 100 more uniform, thereby reducing noise when the air flows.
  • the air inlets 121 are arranged in a plurality of arrays along the circumferential direction of the outer wall 12, and the adjacent two intake ports 121 Array spacing settings. As shown in Figure 2, the outer wall 12 between the array of adjacent two inlet ports 121 is of continuous construction. In addition, this also facilitates the formation of the intake holes 1211, thereby improving the yield of the housing 10.
  • the air inlet 121 is disposed close to the bottom plate 11 so that the air moves from the bottom up to the power system 20 to shorten the path and resistance of the air, and therefore, the air inlet 121 is disposed close to the bottom plate 11 to reduce noise generated by the air flow.
  • Each of the intake holes 1211 has a circular shape, and the diameter of the intake holes 1211 is 1-3 mm.
  • the diameter of the intake hole 1211 is 2 mm. This can reduce the noise generated when the gas flows while ensuring that the bladeless fan 1000 normally draws in air.
  • the spacing between adjacent two intake holes 1211 is 1-3 mm.
  • the interval between the adjacent two intake holes 1211 is 2 mm, whereby the noise generated when the air flows can be reduced.
  • the housing 10 also includes a partition 14 that extends inwardly from the outer wall 12.
  • the partition 14 is formed with a through hole 141 which is disposed coaxially with the outer wall 12.
  • the power system 20 is used to draw in air through the air inlet 121 and establish an air flow.
  • the powertrain 20 includes an impeller casing 21, an impeller 22, a motor 23, a diffuser 24, and a motor casing 25.
  • the impeller casing 21 is mounted in the casing 10, and the impeller casing 21 is formed with an air inlet 211 communicating with the intake port 121.
  • the impeller 22 is disposed within the impeller casing 21.
  • the motor 23 is used to drive the impeller 22.
  • the motor 23 is located in the impeller casing 21, and the output shaft of the motor 23 is fixedly coupled to the impeller 22 so that the impeller 22 can be driven to rotate when the motor 23 is in operation.
  • the diffuser 24 is disposed downstream of the air flow generated by the impeller 22, and the diffuser 24 is coupled to the impeller casing 21.
  • the diffuser 24 can pressurize, decelerate, and decelerate the high velocity airflow generated by the impeller 22 to direct the high velocity airflow to the fan head 102.
  • the diffuser 24 includes a plurality of fins 241 which can integrate the high-speed airflow generated by the impeller 22 and can achieve the effect of eliminating the cyclone so as to be discharged from the air outlet 242 of the diffuser 24.
  • the airflow is softer.
  • the motor housing 25 is formed outside the motor 23 and is used to fix the motor 23.
  • the motor housing 25 is connected to the impeller housing 21.
  • the motor housing 25 can prevent the motor 23 from shaking during operation.
  • a gas passage 25a is formed between the motor casing 25 and the impeller casing 21, and the gas passage 25a and the diffuser 24 are in communication.
  • the airflow generated when the impeller 22 rotates passes through the gas passage 25a and then flows to the diffuser 24, passes through the diffuser 24, and flows out of the diffuser 24 to enter the fan head 102.
  • the sound absorbing structure 40 includes a first muffler cover 41, a second muffler cover 42 and a mounting plate 43.
  • the second muffler cover 42 is housed in the first muffler cover 41.
  • the first muffler cover 41 and the second muffler cover 42 are both cylindrical, and the first muffler cover 41 and the second muffler cover 42 are coaxially disposed.
  • the mounting plate 43 is connected to the first muffler cover 41 and the second muffler cover 42.
  • the muffling structure 40 is fixed to the casing 10 by a mounting plate 43.
  • the mounting plate 43 may be integrally formed with the second muffler cover 42 and the second muffler cover 42 may be housed in the first muffler cover 41.
  • the first muffler cover 41 and the mounting plate 43 are mounted together by, for example, snapping. Then, it is mounted to the casing 10 through the mounting plate 43.
  • the first muffler cover 41 is formed with a first muffling cavity 411, and the first muffler cover 41 is provided with a first through hole 412.
  • the first via hole 412 communicates with the first silencing chamber 411 and the air inlet 121.
  • the cross-sectional area of the first via hole 412 is smaller than the cross-sectional area of the first silencing cavity 411.
  • the noise is difficult to propagate from the first silencing cavity 411 having a large cross-sectional area to the first via hole 412 having a small cross-sectional area, so that the sound is reflected back and forth in the first silencing cavity 411, and the noise of the bladeless fan is reduced. .
  • the number of the first via holes 412 is plural, and the plurality of first via holes 412 are distributed around the plurality of first arrays 413 which are spaced apart in the circumferential direction of the first muffler cover 41.
  • the first muffler cover 41 can have sufficient strength, so that the life of the first muffler cover 41 can be ensured.
  • the number of the first arrays 413 is three, and the number of the first via holes 412 of each of the first arrays 413 is nine. It can be understood that in other embodiments, the number of arrays of the first array 413 may be other numbers, for example, 2, 4, etc., and the number of the first via holes 412 of each first array 413 may be 9 or more. Other quantities, such as 8, 12, etc.
  • the number of first vias 412 ranges from 20 to 65.
  • the first via 412 has a cylindrical shape, and the first via 412 has a diameter ranging from 5 to 17 mm.
  • the first muffler cover 41 is formed with a plurality of first sound guiding tubes 414 extending into the first silencing chamber 411, the first guide
  • the sound tube 414 is formed with a first conductive hole 412, and the length of the first sound guiding tube 414 extending into the first silencing chamber 411 is 5-15 mm.
  • the second muffler cover 42 is surrounded by the air inlet 211, the second muffler cover 42 is formed with a second muffler chamber 421 that communicates with the air inlet 211, and the second muffler cover 42 is provided with a second through hole 422.
  • the second via hole 422 is connected to the first silencing chamber 411 and the second silencing chamber 421.
  • the cross-sectional area of the second via hole 422 is smaller than the cross-sectional area of the second silencing chamber 421.
  • the number of the second via holes 422 is plural, and the plurality of second via holes 422 are distributed around the plurality of second arrays 423 spaced apart in the circumferential direction of the second muffler cover 42. As such, after the second via hole 422 is opened, the second muffler cover 42 can have sufficient strength to ensure the life of the second muffler cover 42.
  • the second array 423 is staggered from the first array 413.
  • the number of second vias 422 ranges from 20 to 65. In another example, the second vias 422 are all cylindrical and the second vias 422 have a diameter ranging from 5 to 17 mm.
  • the second muffler cover 42 is formed with a plurality of second sound tubes 424 extending into the second muffling chamber 421.
  • the second sound tube 424 is formed with a second conductive hole 422, and the second sound tube 424 extends into the second muffler.
  • the cavity 421 has a length of 5-15 mm.
  • the mounting plate 43 is provided with a plurality of screw holes 43a, and the mounting plate 43 can be fixed to the partition plate 14 by screws through the screw holes 43a.
  • the mounting plate 4343 is provided with a through hole 43b, and the through hole 43b communicates with the second silencing chamber 421.
  • the power system 20 is partially housed in the second silencing chamber 421 through the perforations 43b.
  • the base 100 also includes sound absorbing cotton (not shown).
  • the sound absorbing cotton is disposed in the first muffler 41 and the second muffler Between the covers 42. Since the sound absorbing cotton has a plurality of staggered pores, the sound absorbing effect is better, thereby further improving the noise reduction performance of the bladeless fan 1000.
  • the fan head 102 is formed with a duct 1010 that communicates with the air duct and the air duct.
  • the fan head 102 communicates with the base 100 to feed the airflow generated by the power system 20 into the air duct and spray outward through the nozzle 1021.
  • a foam is disposed in the air passage of the fan head 102. Thereby, the foam can absorb the noise generated in the air passage, so that the noise of the bladeless fan 1000 can be reduced.
  • the upwardly extending portion of the fan head 102 is curved to make the air passage curved, thereby reducing the noise generated when the air flows.
  • a connecting plate 50 is disposed between the base 100 and the fan head 102.
  • the connecting plate 50 connects the base 100 and the fan head 102.
  • a first fixing piece 26 is fixedly disposed on the connecting plate 50, and a second fixing piece 27 is fixedly disposed on the partition plate 14.
  • the second fixing piece 27 and the first fixing piece 26 are both located in the casing 10, and the second fixing piece 27 is It is spaced apart from the first fixing piece 26 and is located outside the power system.
  • the plurality of tension springs 70 are stretched to connect the first fixing piece 26 and the power system 20, and the second fixing piece 27 and the power system 20 are stretched and connected.
  • the tension spring 70 allows the power system 20 to be suspended, and the vibration generated by the power system 20 is not directly transmitted to the housing 10, so that the noise generated by the base 100 can be reduced.
  • the plurality of tension springs 70 comprise two sets, two sets of tension springs are arranged along the axial interval of the power system 20, the first set of tension springs 70 includes three, and the first set of three tension springs 70 are connected to the first fixed piece. 26 and power system 20.
  • the first set of three tension springs 70 are evenly spaced along the circumference of the power system 20, that is, the angle between two adjacent ones of the first set of tension springs 70. It is 120 degrees.
  • the second set of three tension springs 70 are connected to the second fixing piece 27 and the power system 20.
  • the two sets of three tension springs 70 are evenly spaced along the circumference of the power system 20, that is, the angle between two adjacent ones of the second set of tension springs 70. It is 120 degrees.
  • the tensile spring 70 has a stiffness factor of 2-4 N/mm and an original length range of 15-25 mm. It can be understood that the original length of the tension spring 70 is the length when the tension spring 70 is not subjected to the force. For example, the tension spring 70 has a stiffness coefficient of 3 N/mm and an original length of 20 mm.
  • the motor 23 drives the impeller 22 to rotate, and the air is sequentially sucked by the impeller 22 through the air intake hole 1211, the muffling structure 40, and the air inlet port 211, and the impeller 22 accelerates the air.
  • a high-speed airflow is formed.
  • the high-speed airflow passes through the gas passage 25a and the diffuser 24, enters the air passage of the fan head 102, and finally is ejected from the nozzle 1021, so that the high-speed airflow ejected from the nozzle 1021 can entrain the surrounding air.
  • the wind is formed to achieve the effect of cooling the user for cooling.
  • the rotational speed of the motor 23 is gradually increased, and when the bladeless fan 1000 is stopped, the rotational speed of the motor 23 is gradually decreased, whereby the bladeless fan 1000 can be slowly started and stopped, thereby reducing The vibration of the leafless fan 1000 is to reduce the generation of noise.
  • the curve a is a sound pressure level curve when the vanishing fan 1000 is omitted
  • the curve b is a sound pressure level curve when the muffling structure 40 is provided in the bladeless fan 1000.
  • the ordinate SPL indicates the sound pressure level of the sound generated by the bladeless fan 1000
  • the abscissa f indicates the frequency of the sound generated by the bladeless fan 1000.
  • the susceptor 100 of the embodiment of the present invention includes a housing 10, a power system 20, and a sound absorbing structure 40.
  • the housing 10 includes an outer wall 12 formed with an air inlet 121.
  • the power system 20 is disposed within the housing 10.
  • the power system 20 is for drawing in air through the air inlet 121 and establishing an air flow, and the power system is formed with an air inlet 211.
  • the muffling structure 40 is disposed within the housing 10.
  • the muffling structure 40 includes a first muffler cover 41 and a second muffler cover 42.
  • the first muffler cover 41 is formed with a first muffling cavity 411, and the first muffler cover 41 is provided with a first through hole 412.
  • the first via hole 412 communicates with the first silencing chamber 411 and the air inlet 121.
  • the cross-sectional area of the first via hole 412 is smaller than the cross-sectional area of the first silencing cavity 411.
  • the second muffler cover 42 is surrounded by the air inlet 211, the second muffler cover 42 is formed with a second muffler chamber 421 that communicates with the air inlet 211, and the second muffler cover 42 is provided with a second through hole 422.
  • the second via hole 422 is connected to the first silencing chamber 411 and the second silencing chamber 421.
  • the cross-sectional area of the second via hole 422 is smaller than the cross-sectional area of the second silencing cavity 421.
  • the cross-sectional area of the first via hole 412 is smaller than the cross-sectional area of the first silencing cavity 411
  • the cross-sectional area of the second via hole 422 is smaller than the cross-sectional area of the first silencing cavity 421.
  • the noise generated during the operation of the power system 20 is more difficult to propagate from the first muffler cavity 411 having a large cross-sectional area to the first via hole 412 having a small cross-sectional area and is difficult to be small from the second muffler cavity 421 having a large cross-sectional area.
  • the second via hole 422 propagates, and the sound is reflected back and forth inside the first silencing chamber 411 and the second silencing chamber 421, thereby reducing the noise of the bladeless fan 1000 during operation.
  • air can enter the housing 10 normally, ensuring that the bladeless fan 1000 operates normally.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种基座及无叶风扇，基座（100）的消音结构（40）包括：第一消音罩（41）和第二消音罩（42），第一消音罩（41）形成有第一消音腔（411），第一消音罩（41）开设有连通第一消音腔（411）和进气口（121）的第一导通孔（412），第一导通孔（412）的截面积小于第一消音腔（411）的截面积；第二消音罩（42）包围覆盖进风口（211），第二消音罩（42）形成有连通进风口（211）的第二消音腔（421），第二消音罩（42）开设有连通第一消音腔（411）和第二消音腔（421）的第二导通孔（422），第二导通孔（422）的截面积小于第二消音腔（421）的截面积。该基座可以降低无叶风扇工作时的噪音。

Description

基座及无叶风扇
优先权信息
本申请请求2016年12月06日向中国国家知识产权局提交的、专利申请号为201611113986.9的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本发明涉及风扇领域，尤其涉及一种基座及无叶风扇。
背景技术
现有的无叶风扇包括基座。基座包括外壳和设置在外壳内的动力系统。外壳形成有进气口，工作时，动力系统通过进气口吸入空气并建立气流。然而动力系统工作时发出的噪音可以通过进气口向外扩散，导致无叶风扇的噪音较大。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提供一种基座及无叶风扇。
本发明实施方式的基座用于无叶风扇，基座包括：壳体，所述壳体包括外壁，所述外壁形成有进气口；设置在所述壳体内的动力系统，用于通过所述进气口吸入空气并建立气流，所述动力系统形成有进风口；和设置在所述壳体内的消音结构，所述消音结构包括：第一消音罩，所述第一消音罩形成有第一消音腔，所述第一消音罩开设有连通所述第一消音腔和所述进气口的第一导通孔，所述第一导通孔的截面积小于所述第一消音腔的截面积；和收容在所述第一消音罩内的第二消音罩，所述第二消音罩包围覆盖所述进风口，所述第二消音罩形成有连通所述进风口的第二消音腔，所述第二消音罩开设有连通所述第一消音腔和所述第二消音腔的第二导通孔，所述第二导通孔的截面积小于所述第二 消音腔的截面积。
在某些实施方式中，所述第一消音罩形成有多个伸入所述第一消音腔的第一导声管，所述第一导声管形成有所述第一导通孔，所述第一导声管伸入所述第一消音腔的长度为5-15mm；和/或
所述第二消音罩形成有多个伸入所述第二消音腔的第二导声管，所述第二导声管形成有所述第二导通孔，所述第二导声管伸入所述第二消音腔的长度为5-15mm。
在某些实施方式中，所述第一消音罩及所述第二消音罩均呈圆柱形，所述第一消音罩与所述第二消音罩同轴设置。
在某些实施方式中，所述第一导通孔的数量是多个，多个所述第一导通孔绕所述第一消音罩的圆周方向呈间隔设置的多个第一阵列分布，所述第二导通孔的数量是多个，多个所述第二导通孔绕所述第二消音罩的圆周方向呈间隔设置的多个第二阵列分布。
在某些实施方式中，所述第一阵列与所述第二阵列错开设置。
在某些实施方式中，所述第一导通孔的数量范围为20-65个，和/或所述第二导通孔的数量范围为20-65个。
在某些实施方式中，所述第一导通孔及所述第二导通孔均呈圆柱形，
所述第一导通孔的直径范围为5-17mm，和/或
所述第二导通孔的直径范围为5-17mm。
在某些实施方式中，所述消音结构包括与所述第一消音罩及所述第二消音罩连接的安装板，所述消音结构通过所述安装板固定在所述壳体上。
在某些实施方式中，所述基座包括设置在所述第一消音罩和所述第二消音罩之间的吸音棉，所述吸音棉覆盖所述第一导通孔和所述第二导通孔。
在某些实施方式中，所述壳体包括自所述外壁向内延伸的隔板，所述消音结构固定在所述隔板上。
在某些实施方式中，所述基座包括：
设置在所述壳体内第一固定片；
固定在所述隔板上的第二固定片，所述第一固定片和所述第二固定片间隔设置；和
多根拉伸弹簧，所述多根拉伸弹簧拉伸连接所述第一固定片及所述动力系统，及拉伸连接所述第二固定片及所述动力系统。
在某些实施方式中，所述多根拉伸弹簧包括两组，两组拉伸弹簧沿所述动力系统的轴向间隔设置，每组拉伸弹簧包括三根拉伸弹簧，所述三根拉伸弹簧沿所述动力系统的周向间隔排布；
其中一组拉伸弹簧拉伸连接所述第一固定片及所述动力系统，另外一组所述拉伸弹簧拉伸连接所述第二固定片及所述动力系统。
在某些实施方式中，所述三根拉伸弹簧沿所述动力系统的周向均匀间隔排布。
在某些实施方式中，每根所述拉伸弹簧的劲度系数为2-4N/mm，原长度的范围为15-25mm。
在某些实施方式中，所述动力系统包括：
叶轮外壳，所述叶轮外壳架设在所述壳体内；
叶轮，所述叶轮设置在所述叶轮外壳内；
电机，所述电机用于驱动所述叶轮；和
扩压器，所述扩压器设置于所述叶轮产生的气流的下游，所述扩压器与所述叶轮外壳连接；
所述电机外形成有固定所述电机的电机外壳，所述电机和所述电机外壳均设于所述扩压器与所述叶轮之间，所述电机外壳与所述叶轮外壳连接。
在某些实施方式中，所述外壁呈环状，所述进气口包括沿所述外壁的圆周方向阵列排布的多个进气孔。
在某些实施方式中，每个所述进气孔呈圆形，且直径为1-3mm。
在某些实施方式中，所述进气孔沿所述外壁圆周方向呈多个阵列排布，相邻的两个所述阵列间隔设置。
本发明实施方式的无叶风扇包括以上任一实施方式所述的基座。
本发明实施方式的基座及无叶风扇中，由于第一导通孔的截面积小于第一消音腔的截面积，第二导通孔的截面积小于第二消音腔的截面积，动力系统工作时产生的噪音较难以从截面积大的第二消音腔向截面积小的第二导通孔传播和难以从截面积大的第一消音腔向截面积小的第一导通孔传播，声音在第一消音腔内部和第二消音腔内部来回被反射消耗掉，进而降低了无叶风扇工作时的噪音。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本发明实施方式的无叶风扇的立体示意图；
图2是本发明实施方式的基座的立体示意图；
图3是本发明实施方式的基座的截面立体示意图；
图4是本发明实施方式的基座的内部结构立体示意图；
图5是本发明实施方式的消音结构的立体示意图；
图6是本发明实施方式的基座的另一个截面示意图；
图7是本发明实施方式的无叶风扇的声压曲线示意图。
主要元件符号说明：
无叶风扇1000；
基座100；
壳体10、底板11、外壁12、进气口121、进气孔1211、隔板14、过孔141；
动力系统20、叶轮外壳21、进风口211、叶轮22、电机23、扩压器24、翼片241、出风口242、电机外壳25、气体通道25a、第一固定片26、第二固定片27；
消音结构40、第一消音罩41、第一消音腔411、第一导通孔412、第一阵列413、第一导声管414、第二消音罩42、第二消音腔421、第二导通孔422、第二阵列423、第二导声管424、安装板43、螺孔43a、穿孔43b；
连接板50；
拉伸弹簧70；
扇头102、喷嘴1021。
具体实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”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发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。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或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特 征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1，本发明实施方式的无叶风扇1000包括基座100和扇头102。扇头102设置在基座100上。无叶风扇1000在工作时，扇头102可以吹出风。相对于传统的风扇，无叶风扇1000由于没有外露的扇叶，不易于伤到用户的手 指等部位，因此，无叶风扇1000具有安全的特点。另外，无叶风扇1000的体积较小，使得用户容易清洁无叶风扇1000。
请参阅图2及图3，基座100包括壳体10、动力系统20和消音结构40。动力系统20设置在壳体10内。消音结构40设置在壳体10内。
壳体10包括底板11及外壁12。底板11自外壁12向外延伸以使无叶风扇1000可以稳定地支撑在支撑面上，支撑面例如为地面或桌面等平面。
外壁12呈环状，环状的外壁12使得无叶风扇1000更加美观，还可以增大外壁12的表面积以使进风面积较大。
外壁12形成有进气口121，进气口121形成有阵列排布的多个进气孔1211。进气口121使得动力系统20能够吸入空气从而建立气流，从而使得无叶风扇1000可以形成风以满足用户的需求。
多个进气孔1211沿外壁12的圆周方向分布。这样使得进气口121的进风面积较大，有利于增加进入基座100内的空气流量。另外，还可以使得空气从壳体10的四周进入，以使进入基座100内的气流更加均匀，从而可以降低空气流动时的噪音。
为了使得外壁12具有足够的强度，以防止壳体10因摔落、撞击等意外而损坏，进气口121沿外壁12的圆周方向呈多个阵列排布，相邻的两个进气口121阵列间隔设置。如图2所示，相邻的两个进气口121阵列之间的外壁12为连续结构。另外，这样还有利于进气孔1211形成，从而提高壳体10的成品率。
具体地，进气口121靠近底板11设置，从而使得空气由下向上运动至动力系统20以缩短空气的路径及阻力，因此，进气口121靠近底板11设置可以降低空气流动产生的噪音。
每个进气孔1211呈圆形，进气孔1211的直径为1-3mm。例如进气孔1211的直径为2mm。这样可以在保证无叶风扇1000正常吸入空气的同时，可以降低气体流动时产生的噪音。
在同一个进气口121阵列中，相邻的两个进气孔1211之间的间隔为1-3mm。优选地，相邻的两个进气孔1211之间的间隔为2mm，由此可以降低空气流动时产生的噪音。
壳体10还包括自外壁12向内延伸的隔板14。隔板14形成有过孔141，过孔141与外壁12同轴设置。
请结合图3，动力系统20用于通过进气口121吸入空气并建立气流。动力系统20包括叶轮外壳21、叶轮22、电机23、扩压器24和电机外壳25。
叶轮外壳21架设在壳体10内，叶轮外壳21形成有与进气口121连通的进风口211。
叶轮22设置在叶轮外壳21内。电机23用于驱动叶轮22。具体地，电机23位于叶轮外壳21内，电机23的输出轴与叶轮22固定连接，使得电机23工作时可以驱动叶轮22转动。
叶轮22旋转时，叶轮22周围可以产生负压，从而可以从进风口211吸入空气，空气经过叶轮22加压后，可以形成高压气流。
扩压器24设置于叶轮22产生的气流的下游，扩压器24与叶轮外壳21连接。扩压器24可以对叶轮22所产生的高速气流进行增压、减速及消旋，引导高速气流向扇头102运动。
可以理解，扩压器24包括多个翼片241，多个翼片241可以对叶轮22产生的高速气流进行整合，并且可以实现消除旋风的效果，使得从扩压器24的出风口242排出的气流更加柔和。
电机外壳25形成在电机23外且用于固定电机23。电机外壳25与叶轮外壳21连接。电机外壳25可以避免电机23在工作过程中晃动。
具体地，电机外壳25与叶轮外壳21之间形成有气体通道25a，气体通道25a和扩压器24连通。叶轮22旋转时所产生的气流经过气体通道25a后流向扩压器24，经过扩压器24后流向扩压器24外以进入扇头102内。
请结合图5及图6，消音结构40包括第一消音罩41、第二消音罩42和安装板43。第二消音罩42收容在第一消音罩41内。
第一消音罩41及第二消音罩42均呈圆柱形，第一消音罩41与第二消音罩42同轴设置。安装板43与第一消音罩41及第二消音罩42连接。消音结构40通过安装板43固定在壳体10上。
例如，安装板43可以与第二消音罩42一体成型后，并使第二消音罩42收容在第一消音罩41中，第一消音罩41与安装板43例如通过卡扣的方式安装在一起，然后通过安装板43安装至壳体10上。
具体地，第一消音罩41形成有第一消音腔411，第一消音罩41开设有第一导通孔412。第一导通孔412连通第一消音腔411和进气口121。第一导通孔412的截面积小于第一消音腔411的截面积。
如此，噪音难以从截面积较大的第一消音腔411向截面积较小的第一导通孔412传播，使得声音在第一消音腔411内来回反射消耗掉，降低了无叶风扇的噪音。
第一导通孔412的数量是多个，多个第一导通孔412绕第一消音罩41的圆周方向呈间隔设置的多个第一阵列413分布。如此，在开设第一导通孔412后，第一消音罩41可以具有足够的强度，从而可以保证第一消音罩41的寿命。
本实施方式中，第一阵列413的数量为3个，每个第一阵列413的第一导通孔412的数量均为9个。可以理解，在其他实施方式中，第一阵列413的阵列的数量可以为其他数量，例如2个、4个等，每个第一阵列413的第一导通孔412的数量可以为9个以外的其他数量，例如8个、12个等。
在一个例子中，第一导通孔412的数量范围为20-65个。在另一个例子中，第一导通孔412呈圆柱形，第一导通孔412的直径范围为5-17mm。第一导通孔412在以上参数范围时，能够保证无叶风扇的进风和降噪效果。
第一消音罩41形成有多个伸入第一消音腔411的第一导声管414，第一导 声管414形成有第一导通孔412，第一导声管414伸入第一消音腔411的长度为5-15mm。如此，通过控制第一导声管414伸入第一消音腔411的长度可以消除某些特定频率的声音向从第一消音腔411向外传播。
第二消音罩42包围覆盖进风口211，第二消音罩42形成有连通进风口211的第二消音腔421，第二消音罩42开设有第二导通孔422。第二导通孔422连通第一消音腔411和第二消音腔421，第二导通孔422的截面积小于第二消音腔421的截面积。
如此，噪音难以从截面积较大的第二消音腔421向截面积较小的第二导通孔422传播，使得声音在第二消音腔421内来回反射消耗掉，降低了无叶风扇的噪音。
第二导通孔422的数量是多个，多个第二导通孔422绕第二消音罩42的圆周方向呈间隔设置的多个第二阵列423分布。如此，在开设第二导通孔422后，第二消音罩42可以具有足够的强度，从而可以保证第二消音罩42的寿命。
为了增长噪音的传播路径以消耗噪音的能量，从而降低噪音，第二阵列423与第一阵列413错开设置。
在一个例子中，第二导通孔422的数量范围为20-65个。在另一个例子中，第二导通孔422均呈圆柱形，第二导通孔422的直径范围为5-17mm。
第二消音罩42形成有多个伸入第二消音腔421的第二导声管424，第二导声管424形成有第二导通孔422，第二导声管424伸入第二消音腔421的长度为5-15mm。如此，通过控制第二导声管424伸入第二消音腔421的长度可以消除某些特定频率的声音向从第二消音腔421向外传播。
安装板43开设有多个螺孔43a，安装板43可以通过螺钉穿过螺孔43a固定在隔板14上。安装板4343开设有穿孔43b，穿孔43b连通第二消音腔421。动力系统20穿过穿孔43b而部分收容在第二消音腔421内。
基座100还包括吸音棉(图未示)。吸音棉设置在第一消音罩41和第二消音 罩42之间。由于吸音棉具有多个交错分布的孔隙，从而具有较好的吸音效果，从而进一步提高了无叶风扇1000的降噪性能。
请再次参阅图1，扇头102形成有风道和连通风道的喷嘴1021，扇头102与基座100连通以将动力系统20产生的气流送入风道内并经喷嘴1021向外喷射。
进一步地，扇头102的风道内设置有泡棉。由此，泡棉可以吸收风道中所产生的噪音，从而可以降低无叶风扇1000的噪音。
扇头102向上延伸的部分呈曲线状，以使风道呈曲线状，由此可以减低空气流动时产生的噪音。
请再次参阅图3及图4，基座100和扇头102之间设有连接板50，连接板50连接基座100和扇头102。
在连接板50上固定设置有第一固定片26，隔板14上固定设置有第二固定片27，第二固定片27与第一固定片26均位于壳体10内，第二固定片27与第一固定片26间隔设置且均位于所述动力系统外。多根拉伸弹簧70拉伸连接第一固定片26及动力系统20，及拉伸连接第二固定片27及动力系统20。
拉伸弹簧70使得动力系统20可以悬挂起来，动力系统20产生的振动不会直接传递到壳体10上，从而可以减少基座100产生的噪音。
多根拉伸弹簧70包括两组，两组拉伸弹簧沿动力系统20的轴向间隔设置，第一组拉伸弹簧70包括三根，第一组的三根拉伸弹簧70均连接第一固定片26及动力系统20。较佳地，第一组的三根拉伸弹簧70沿动力系统20的周向均匀间隔排布，也就是说，第一组拉伸弹簧70中的相邻两根拉伸弹簧70之间的角度为120度。
第二组的三根拉伸弹簧70均连接第二固定片27及动力系统20。较佳地，第二组的三根拉伸弹簧70沿动力系统20的周向均匀间隔排布，也就是说，第二组拉伸弹簧70中的相邻两根拉伸弹簧70之间的角度为120度。
在一个例子中，拉伸弹簧70的劲度系数在2-4N/mm，原长度的范围为15-25mm。可以理解，拉伸弹簧70的原长度为拉伸弹簧70没有受力的状态时的长度。例如，拉伸弹簧70的劲度系数为3N/mm，原长度为20mm。
如图3的虚线箭头所示，无叶风扇1000工作时，电机23驱动叶轮22转动，空气依次经过进气孔1211、消音结构40及进风口211而被叶轮22吸入，叶轮22将空气加速加压后形成高速气流，高速气流依次经过气体通道25a及扩压器24后进入扇头102的风道中，最后从喷嘴1021喷出，从而喷嘴1021喷出的高速气流可以卷吸周围的空气，从而形成风，以实现为用户降温纳凉的效果。
另外，在无叶风扇1000启动时，电机23的转速逐渐增加，在无叶风扇1000停止运行时，电机23的转速逐渐降低，由此可以使得无叶风扇1000缓慢启动及停止运行，从而可以降低无叶风扇1000的振动，以减少噪音的产生。
如图7所示，曲线a为无叶风扇1000省略消音结构40时的声压级曲线，曲线b为无叶风扇1000内设置有消音结构40时的声压级曲线。其中，纵坐标SPL表示无叶风扇1000所产生的声音的声压级，横坐标f表示无叶风扇1000所产生的声音的频率。由图7可以看出，当在壳体10内设置有消音结构40时，无叶风扇1000所产生的声音的声压级下降。
综上，本发明实施方式的基座100包括壳体10、动力系统20和消音结构40。壳体10包括外壁12，外壁12形成有进气口121，动力系统20设置在壳体10内，动力系统20用于通过进气口121吸入空气并建立气流，动力系统形成有进风口211。消音结构40设置在壳体10内。消音结构40包括第一消音罩41和第二消音罩42。第一消音罩41形成有第一消音腔411，第一消音罩41开设有第一导通孔412。第一导通孔412连通第一消音腔411和进气口121。第一导通孔412的截面积小于第一消音腔411的截面积。第二消音罩42包围覆盖进风口211，第二消音罩42形成有连通进风口211的第二消音腔421，第二消音罩42开设有第二导通孔422。第二导通孔422连通第一消音腔411和第二消音腔 421，第二导通孔422的截面积小于第二消音腔421的截面积。
本发明的基座100和无叶风扇1000，由于第一导通孔412的截面积小于第一消音腔411的截面积，第二导通孔422的截面积小于第一消音腔421的截面积，动力系统20工作时产生的噪音较难以从截面积大的第一消音腔411向截面积小的第一导通孔412传播和难以从截面积大的第二消音腔421向截面积小的第二导通孔422传播，声音在第一消音腔411和第二消音腔421内部来回被反射消耗掉，进而降低了无叶风扇1000工作时的噪音。另外，空气可以正常进入壳体10内，保证无叶风扇1000正常工作。
在本说明书的描述中，参考术语“一个实施方式”、“某些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。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方式或示例。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方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (19)

  1. 一种基座，用于无叶风扇，其特征在于，所述基座包括：
    壳体，所述壳体包括外壁，所述外壁形成有进气口；
    设置在所述壳体内的动力系统，用于通过所述进气口吸入空气并建立气流，所述动力系统形成有进风口；和
    设置在所述壳体内的消音结构，所述消音结构包括：
    第一消音罩，所述第一消音罩形成有第一消音腔，所述第一消音罩开设有连通所述第一消音腔和所述进气口的第一导通孔，所述第一导通孔的截面积小于所述第一消音腔的截面积；和
    收容在所述第一消音罩内的第二消音罩，所述第二消音罩包围覆盖所述进风口，所述第二消音罩形成有连通所述进风口的第二消音腔，所述第二消音罩开设有连通所述第一消音腔和所述第二消音腔的第二导通孔，所述第二导通孔的截面积小于所述第二消音腔的截面积。
  2. 如权利要求1所述的基座，其特征在于，所述第一消音罩形成有多个伸入所述第一消音腔的第一导声管，所述第一导声管形成有所述第一导通孔，所述第一导声管伸入所述第一消音腔的长度为5-15mm；和/或
    所述第二消音罩形成有多个伸入所述第二消音腔的第二导声管，所述第二导声管形成有所述第二导通孔，所述第二导声管伸入所述第二消音腔的长度为5-15mm。
  3. 如权利要求1所述的基座，其特征在于，所述第一消音罩及所述第二消音罩均呈圆柱形，所述第一消音罩与所述第二消音罩同轴设置。
  4. 如权利要求3所述的基座，其特征在于，所述第一导通孔的数量是多个， 多个所述第一导通孔绕所述第一消音罩的圆周方向呈间隔设置的多个第一阵列分布，所述第二导通孔的数量是多个，多个所述第二导通孔绕所述第二消音罩的圆周方向呈间隔设置的多个第二阵列分布。
  5. 如权利要求4所述的基座，其特征在于，所述第一阵列与所述第二阵列错开设置。
  6. 如权利要求1所述的基座，其特征在于，所述第一导通孔的数量范围为20-65个，和/或所述第二导通孔的数量范围为20-65个。
  7. 如权利要求1所述的基座，其特征在于，所述第一导通孔及所述第二导通孔均呈圆柱形，
    所述第一导通孔的直径范围为5-17mm，和/或
    所述第二导通孔的直径范围为5-17mm。
  8. 如权利要求1所述的基座，其特征在于，所述消音结构包括与所述第一消音罩及所述第二消音罩连接的安装板，所述消音结构通过所述安装板固定在所述壳体上。
  9. 如权利要求1所述的基座，其特征在于，所述基座包括设置在所述第一消音罩和所述第二消音罩之间的吸音棉，所述吸音棉覆盖所述第一导通孔和所述第二导通孔。
  10. 如权利要求1所述的基座，其特征在于，所述壳体包括自所述外壁向内延伸的隔板，所述消音结构固定在所述隔板上。
  11. 如权利要求10所述的基座，其特征在于，所述基座包括：
    设置在所述壳体内第一固定片；
    固定在所述隔板上的第二固定片，所述第一固定片与所述第二固定片间隔设置且均位于所述动力系统外；和
    多根拉伸弹簧，所述多根拉伸弹簧拉伸连接所述第一固定片及所述动力系统，及拉伸连接所述第二固定片及所述动力系统。
  12. 如权利要求11所述的基座，其特征在于，所述多根拉伸弹簧包括两组，两组所述拉伸弹簧沿所述动力系统的轴向间隔设置，每组所述拉伸弹簧包括三根拉伸弹簧，所述三根拉伸弹簧沿所述动力系统的周向间隔排布；
    其中一组所述拉伸弹簧拉伸连接所述第一固定片及所述动力系统，另外一组所述拉伸弹簧拉伸连接所述第二固定片及所述动力系统。
  13. 如权利要求12所述的基座，其特征在于，所述三根拉伸弹簧沿所述动力系统的周向均匀间隔排布。
  14. 如权利要求11所述的基座，其特征在于，每根所述拉伸弹簧的劲度系数为2-4N/mm，原长度的范围为15-25mm。
  15. 如权利要求1所述的基座，其特征在于，所述动力系统包括：
    叶轮外壳，所述叶轮外壳架设在所述壳体内；
    叶轮，所述叶轮设置在所述叶轮外壳内；
    电机，所述电机用于驱动所述叶轮；和
    扩压器，所述扩压器设置于所述叶轮产生的气流的下游，所述扩压器与所述叶轮外壳连接；
    所述电机外形成有固定所述电机的电机外壳，所述电机和所述电机外壳均设于所述扩压器与所述叶轮之间，所述电机外壳与所述叶轮外壳连接。
  16. 如权利要求1所述的基座，其特征在于，所述外壁呈环状，所述进气口包括沿所述外壁的圆周方向阵列排布的多个进气孔。
  17. 如权利要求16所述的基座，其特征在于，每个所述进气孔呈圆形，且直径为1-3mm。
  18. 如权利要求16所述的基座，其特征在于，所述进气孔沿所述外壁的圆周方向呈多个阵列排布，相邻的两个所述阵列间隔设置。
  19. 一种无叶风扇，其特征在于包括如权利要求1-18任意一项所述的基座。
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110701648A (zh) * 2018-07-10 2020-01-17 佛山市顺德区合捷电器实业有限公司 降噪部件和抽油烟机
CN111795008A (zh) * 2020-07-06 2020-10-20 追觅科技(上海)有限公司 叶轮组件及无叶风扇
CN112556158A (zh) * 2020-12-10 2021-03-26 广东海悟科技有限公司 一种降噪装置及机架空调
CN115956829A (zh) * 2021-10-13 2023-04-14 江苏美的清洁电器股份有限公司 一种消音装置、电机组件及吸尘器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107198492B (zh) * 2017-06-26 2022-11-29 美的集团股份有限公司 导流组件及吸尘器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200976264Y (zh) * 2006-11-09 2007-11-14 北京绿创环保集团北京绿创声学工程股份有限公司 一种阻抗复合消声装置
CN202483844U (zh) * 2012-03-15 2012-10-10 张文俊 手持式无叶风扇
GB2502105A (en) * 2012-05-16 2013-11-20 Dyson Technology Ltd Bladeless fan
CN204357774U (zh) * 2014-12-29 2015-05-27 宁波博事德电器有限公司 无叶风扇
CN205349799U (zh) * 2016-01-07 2016-06-29 宁波小恐龙电器有限公司 一种空气净化无叶风扇

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100569901B1 (ko) * 2003-10-07 2006-04-10 현대자동차주식회사 소음저감형 흡기호스 구조
CN202338473U (zh) * 2011-09-26 2012-07-18 刘向星 无叶风扇
GB2502106A (en) * 2012-05-16 2013-11-20 Dyson Technology Ltd Bladeless fan
CN103629167A (zh) * 2012-08-27 2014-03-12 任文华 风扇

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200976264Y (zh) * 2006-11-09 2007-11-14 北京绿创环保集团北京绿创声学工程股份有限公司 一种阻抗复合消声装置
CN202483844U (zh) * 2012-03-15 2012-10-10 张文俊 手持式无叶风扇
GB2502105A (en) * 2012-05-16 2013-11-20 Dyson Technology Ltd Bladeless fan
CN204357774U (zh) * 2014-12-29 2015-05-27 宁波博事德电器有限公司 无叶风扇
CN205349799U (zh) * 2016-01-07 2016-06-29 宁波小恐龙电器有限公司 一种空气净化无叶风扇

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110701648A (zh) * 2018-07-10 2020-01-17 佛山市顺德区合捷电器实业有限公司 降噪部件和抽油烟机
CN110701648B (zh) * 2018-07-10 2024-05-24 佛山市顺德区合捷电器实业有限公司 降噪部件和抽油烟机
CN111795008A (zh) * 2020-07-06 2020-10-20 追觅科技(上海)有限公司 叶轮组件及无叶风扇
CN112556158A (zh) * 2020-12-10 2021-03-26 广东海悟科技有限公司 一种降噪装置及机架空调
CN115956829A (zh) * 2021-10-13 2023-04-14 江苏美的清洁电器股份有限公司 一种消音装置、电机组件及吸尘器

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