CN106321525A - Base and bladeless fan - Google Patents
Base and bladeless fan Download PDFInfo
- Publication number
- CN106321525A CN106321525A CN201611025730.2A CN201611025730A CN106321525A CN 106321525 A CN106321525 A CN 106321525A CN 201611025730 A CN201611025730 A CN 201611025730A CN 106321525 A CN106321525 A CN 106321525A
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- China
- Prior art keywords
- sub
- silencing cavity
- voice entry
- pedestal
- wall
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
-
- 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
-
- 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
- F04D29/665—Sound attenuation by means of resonance chambers or interference
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a base and a bladeless fan. The base comprises a shell, a power system and a silencing part, wherein the shell comprises an outer wall, the power system is arranged in the outer wall, the silencing part is arranged in the outer wall, air inlets are formed in the outer wall, the power system is used for sucking in air through the air inlets to form air flow, the silencing part is provided with a plurality of silencing cavities and a plurality of first sound inlets located among the air inlets, and each first sound inlet is communicated with one corresponding first silencing cavity. Due to the fact that the silencing part is arranged in the outer wall and the silencing part is provided with the plurality of silencing cavities and the plurality of first sound inlets located among the air inlets, when the power system operates, noise caused by the power system sucking air into the outer wall through the air inlets can be respectively guided into corresponding first silencing cavities through the first sound inlets and reflected and absorbed by the first silencing cavities, and the noise is eliminated.
Description
Technical field
The present invention relates to living electric apparatus field, especially relate to a kind of pedestal and bladeless fan.
Background technology
Existing bladeless fan includes pedestal.Pedestal includes shell and arranges dynamical system in the enclosure.Shell is formed
Having air inlet, during work, dynamical system sucks air by air inlet and sets up air-flow.But send during power system operational
Noise is relatively big and can be by air inlet to external diffusion, and the noise causing bladeless fan is bigger.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art.To this end, the present invention needs to provide one
Plant pedestal and bladeless fan.
The pedestal of embodiment of the present invention can be used for bladeless fan, and described pedestal includes housing, dynamical system and acoustic element,
Described housing includes that outer wall, described dynamical system are arranged in described outer wall, and described acoustic element is arranged in described outer wall, described
Outer wall is formed with air inlet, and described dynamical system sets up air-flow, described acoustic element shape for sucking air by described air inlet
Become to have multiple first silencing cavity and multiple first voice entries between described dynamical system and described air inlet, Mei Gesuo
State the first corresponding described first silencing cavity of voice entry connection.
The pedestal of embodiment of the present invention can be applicable to the bladeless fan of embodiment of the present invention, and bladeless fan includes above-mentioned
Pedestal.
In embodiments of the present invention, owing to being provided with acoustic element in outer wall, and acoustic element is formed with multiple first
Silencing cavity and connect multiple first silencing cavity and multiple first voice entries between dynamical system and air inlet, so exists
During power system operational, the noise produced in air is sucked outer wall by air inlet by dynamical system can be entered by multiple first sound
Reflect and absorb to abate the noise in mouth introduces the first corresponding silencing cavity respectively and by multiple first silencing cavity, meanwhile, power
During system work, the noise that sends can shift to an earlier date before spreading to air inlet and introduced correspondence respectively by multiple first voice entries
In first silencing cavity and by multiple first silencing cavity reflection and absorptions, so, the noise formed during power system operational obtains
Effectively reduce.
In one embodiment, in the form of a ring, described acoustic element in the form of a ring, and is arranged described outer wall with described wall coaxial
Between institute's air inlet and described dynamical system.
In one embodiment, described air inlet is formed with the air inlet being arranged in array, and described air inlet is along described
The circumferencial direction distribution of outer wall.
In one embodiment, described air inlet is multiple array arrangements along the circumferencial direction of described outer wall, adjacent
Two described array spacings are arranged.
In one embodiment, described air inlet is rounded, a diameter of 1-3mm of described air inlet.
In one embodiment, the distance between adjacent two described air inlets is 1-3mm.
In one embodiment, the plurality of first silencing cavity includes helmholtz resonance chamber.
In one embodiment, the plurality of first silencing cavity include annular the first sub-silencing cavity and annular and enclose
Around described first sub-silencing cavity and with described first sub-silencing cavity separate the second sub-silencing cavity, the plurality of first voice entry
Enter with the second sub-sound connecting described second sub-silencing cavity including the first sub-voice entry connecting described first sub-silencing cavity
Mouthful, described first sub-voice entry with described second sub-voice entry towards identical.
In one embodiment, described first sub-silencing cavity includes helmholtz resonance chamber, described second sub-silencing cavity
Including helmholtz resonance chamber, the volume scope of described first sub-silencing cavity and described second sub-silencing cavity is 3*105-5*
105mm3。
In one embodiment, a length of 2-10mm of described first sub-voice entry, described first sub-voice entry
Width be 2-6mm, a length of 2-10mm of described second sub-voice entry, the width of described second sub-voice entry is 2-
6mm。
In one embodiment, the plurality of first silencing cavity includes the first sub-silencing cavity and the formation of annular of annular
The second sub-silencing cavity in described first sub-silencing cavity, the plurality of first voice entry includes connecting described first sub-noise reduction
The first sub-voice entry in chamber and the second sub-voice entry connecting described second sub-silencing cavity, described first sub-voice entry and
Described second sub-voice entry is towards identical.
In one embodiment, described first sub-silencing cavity includes helmholtz resonance chamber, described second sub-silencing cavity
Including helmholtz resonance chamber, the volume scope of described first sub-silencing cavity and described second sub-silencing cavity is 3*105-5*
105mm3。
In one embodiment, a length of 2-10mm of described first sub-voice entry, described first sub-voice entry
Width be 2-6mm, a length of 2-10mm of described second sub-voice entry, the width of described second sub-voice entry is 2-
6mm。
In one embodiment, the second silencing cavity, described noise reduction it are formed with between described outer wall and described dynamical system
The second voice entry connecting described second silencing cavity and described air inlet it is formed with between part with described dynamical system.
In one embodiment, described housing includes that base plate, described outer wall upwardly extend from described base plate, described pedestal
Also include being arranged on described base plate and the sound baffle relative with described second voice entry.
In one embodiment, described housing includes that base plate, described outer wall upwardly extend from described base plate, described pedestal
Also include being arranged on described base plate and the sound baffle relative with the plurality of first voice entry.
In one embodiment, described sound baffle includes arcwall face that is opposing with described base plate and that raise up.
The bladeless fan of embodiment of the present invention includes the pedestal described in any of the above-described embodiment.
The additional aspect of embodiment of the present invention and advantage will part be given in the following description, and part is by from following
Description becomes obvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Obtain substantially with easy to understand, wherein:
Fig. 1 is the schematic perspective view of the pedestal of embodiment of the present invention.
Fig. 2 is the generalized section of the pedestal of embodiment of the present invention.
Fig. 3 is the enlarged diagram of pedestal II part of Fig. 2.
Fig. 4 is the exploded perspective schematic diagram of the pedestal of embodiment of the present invention.
Fig. 5 is the schematic perspective view of the acoustic element of the pedestal of embodiment of the present invention.
Fig. 6 is the generalized section of the acoustic element of the pedestal of embodiment of the present invention.
Fig. 7 is another generalized section of the acoustic element of the pedestal of embodiment of the present invention.
Fig. 8 is the schematic perspective view of the sound baffle of the pedestal of embodiment of the present invention.
Fig. 9 is the schematic perspective view of the base plate of the pedestal of embodiment of the present invention.
Figure 10 is the schematic perspective view of the grating element of the pedestal of embodiment of the present invention.
Figure 11 is the schematic perspective view of the bladeless fan of embodiment of the present invention.
Figure 12 is the sound pressure curve schematic diagram of the bladeless fan of embodiment of the present invention.
Main element symbol description:
Bladeless fan 100；
Pedestal 20；
Housing 10, base plate 11, outer wall 12, mating holes 11a, air inlet 121, air inlet 122, dividing plate 13, grating element 14,
Via the 131, second stator 132；
Dynamical system 21, impeller housing 211, impeller 212, motor 213, air inlet 214, diffuser 215, motor housing
216, fin 215a, air outlet 215b, gas passage 216a；
Acoustic element the 22, first installing hole 22a, first silencing cavity the 221, first voice entry the 222, first sub-silencing cavity
221a, the first sub-silencing cavity 221c, the second sub-silencing cavity 221b, the second sub-silencing cavity 221d, the first sub-voice entry 222a,
One sub-voice entry 222c, the second sub-voice entry 222b, the second sub-voice entry 222d, the second silencing cavity 223, the two the first
Voice entry 224, sound baffle 225, arcwall face 225a, fixing end 225b；
Fan 30, nozzle 31；
Sealing member 40；
Connecting plate the 50, first stator 51；
Stretching spring 60.
Detailed description of the invention
Embodiments of the present invention are described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " up time
Pin ", the orientation of the instruction such as " counterclockwise " or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of
Describe the present invention and simplification description rather than instruction or the device of hint indication or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ", " second " are only used for
Purpose is described, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.
Thus, define " first ", the feature of " second " can express or implicitly include one or more described features.?
In description of the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected.Can
To be mechanical connection, it is also possible to be electrical connection.Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, permissible
Understand above-mentioned term concrete meaning in the present invention as the case may be.
Seeing also Fig. 1～Fig. 3, the pedestal 20 of embodiment of the present invention can be used for bladeless fan, and pedestal 20 includes shell
Body 10, dynamical system 21 and acoustic element 22.
Housing 10 includes outer wall 12.Dynamical system 21 is arranged in outer wall 12.Acoustic element 22 is arranged in outer wall 12.Outer wall
12 are formed with air inlet 121.Dynamical system 21 sets up air-flow for sucking air by air inlet 121.Acoustic element 22 is formed
Multiple first silencing cavity 221 and multiple first voice entries 222, Mei Ge between dynamical system 21 and air inlet 121
One voice entry 222 connects corresponding first silencing cavity 221.
The pedestal 20 of embodiment of the present invention can be applicable to the bladeless fan 100 of embodiment of the present invention, bladeless fan 100
Including above-mentioned pedestal 20.
In embodiments of the present invention, owing to being provided with acoustic element 22 in outer wall 12, and acoustic element 22 is formed many
Individual first silencing cavity 221 and connect multiple first silencing cavity 221 and between dynamical system 21 and air inlet 121 multiple
One voice entry 222, so when dynamical system 21 works, air is sucked in outer wall 12 by dynamical system 21 by air inlet 121
And in the noise produced can be introduced the first corresponding silencing cavity 221 respectively by multiple first voice entries 222 and by multiple first
Silencing cavity 221 reflects and absorbs to abate the noise, and meanwhile, the noise that dynamical system 21 sends when working is expanding to air inlet 121
Can shift to an earlier date before Saning in being introduced the first corresponding silencing cavity 221 respectively by multiple first voice entries 222 and be disappeared by multiple first
Sound chamber 221 is reflected and is absorbed, and so, the noise formed when dynamical system 21 works has obtained effective reduction.
In the present example, owing to acoustic element 22 has multiple first silencing cavity 221, and each first silencing cavity
221 connect with the first corresponding voice entry 222, so make acoustic element 22 have the effect of multiple noise reduction.Meanwhile, the first sound
The duct that sound entrance 222 is formed is less, and the first silencing cavity 221 is by being in communication with the outside with the first voice entry 222, and noise can be
First silencing cavity 221 is reflected and is absorbed, and being the first silencing cavity 221 can change into heat energy by acoustic energy and eliminate.
In embodiments of the present invention, when dynamical system 21 works, air is entered in outer wall 12 by air inlet 121, with
High pressure draught is produced in dynamical system 21.
In one embodiment, in the form of a ring, acoustic element 22 in the form of a ring, and is coaxially disposed air inlet with outer wall 12 to outer wall 12
Between 121 and dynamical system 21.
So, ring-type outer wall 12 makes the bladeless fan 100 with housing 10 more attractive in appearance, and beneficially air is with more
The entrance of uniform mode, incoming air area is relatively big and air intake is coaxially disposed without dead angle, acoustic element 22 can ensure with outer wall 12 simultaneously
In the noise produced by dynamical system 21 can be introduced the first silencing cavity 221 by the first voice entry 222 the most fully and by the
One silencing cavity 221 reflects and absorbs, the mode being simultaneously coaxially disposed makes the structure of pedestal 20 relatively stable, beneficially pedestal 20
Install and place.
In one embodiment, air inlet 121 is formed with the air inlet 122 being arranged in array, and air inlet 122 is along outer wall
The circumferencial direction distribution of 12.
So, the air inlet area of air inlet 121 is relatively big and air inlet is the most uniform.
In one embodiment, air inlet 121 is multiple array arrangements along the circumferencial direction of outer wall 12, adjacent two
Array spacings is arranged.
So, both can ensure that air inlet 121 had bigger air inlet area, can ensure that again the intensity of outer wall 12, from
And ensureing the structural stability of housing 10, the mode of the most multiple array spacings arrangement can reduce air inlet to a certain extent
During 121 air intake between air-flow and the interphase interaction of air-flow and air inlet 122 and the noise that produces.
In one embodiment, air inlet 122 is rounded, a diameter of 1-3mm of air inlet 122.
So, being of moderate size of air inlet 122, while ensureing the air inlet area that air inlet 121 has abundance, help
The noise produced in time reducing air inlet 121 air intake.
In one example, a diameter of 2mm of air inlet 122.So, being of moderate size of air inlet 122, and air inlet
122 to offer difficulty relatively low.
In one embodiment, the distance between adjacent two air inlets 122 is 1-3mm.
So, the distance between adjacent air inlet 122 is moderate, so can either ensure the incoming air area of air inlet 121, with
Time can avoid due to air inlet 122 again between hypotelorism and make between air-flow and phase between air-flow with air inlet 122
Interreaction force is excessive and produces bigger noise.
In one example, the distance between air inlet 122 is 2mm.So, the distance between air inlet 122 is moderate.
In one embodiment, multiple first silencing cavity 221 include helmholtz resonance chamber.So, noise can be many
Form resonance in individual first silencing cavity 221, so make the erasure effect of multiple first silencing cavity 221 more preferably.
Refer to Fig. 6, in one embodiment, multiple first silencing cavity include annular the first sub-silencing cavity 221a and
Annular and around the first sub-silencing cavity 221a and with first sub-silencing cavity 221a separate the second sub-silencing cavity 221b.Multiple
One voice entry includes the first sub-voice entry 222a connecting the first sub-silencing cavity 221a and connects the second sub-silencing cavity 221b
The second sub-voice entry 222b.First sub-voice entry 222a and the second sub-voice entry 222b is towards identical.
So, the first sub-silencing cavity 221a and the second sub-silencing cavity 221b constitute parallel structure, do not affect,
And the area coverage of two ring-type sub-silencing cavity is relatively big, the beneficially importing of sound, meanwhile, the first sub-voice entry 222a and
Second sub-voice entry 222b makes noise can be imported corresponding sub-silencing cavity by voice entry in time towards identical.
In one embodiment, the first sub-silencing cavity 221a includes helmholtz resonance chamber, the second sub-silencing cavity 221b
Including helmholtz resonance chamber, the volume scope of the first sub-silencing cavity 221a and the second sub-silencing cavity 221b is 3*105-5*
105mm3。
So, the volume size of the first sub-silencing cavity 221a and the second sub-silencing cavity 221b is moderate, and to certain frequency model
The eradicating efficacy of the noise enclosed is preferable, such as in the frequency of about 600-5000Hz.
Incorporated by reference to Fig. 6, in one embodiment, length h1 of the first sub-voice entry 222a is 2-10mm, the first son
The width d1 of voice entry 222a is 2-6mm.
So, the size of the first voice entry 222a is moderate, and the duct that the first voice entry 222a is formed is less, can
Ensure the obturation effect of silencing cavity, thus ensure the erasure effect of silencing cavity.
In one embodiment, length h2 of the second sub-voice entry 222b is 2-10mm, the second sub-voice entry
The width d2 of 222b is 2-6mm.
So, the size of the second sub-voice entry 222b is moderate, and the duct that the second sub-voice entry 222b is formed is relatively
Little, it is ensured that the obturation effect of silencing cavity, thus ensure the erasure effect of silencing cavity.
In one example, the volume of the first sub-silencing cavity 221a is 4*105mm3, the length of the first sub-voice entry 222a
H1 is 6mm, and the width d1 of the first sub-voice entry 222a is 4mm；The volume of the second sub-silencing cavity 221b is 4*105mm3, second
Length h2 of sub-voice entry 222b is 6mm, and the width d2 of the second sub-voice entry 222b is 4mm.
Refer to Fig. 7, in one embodiment, multiple first silencing cavity include annular the first sub-silencing cavity 221c and
Second sub-silencing cavity 221d being formed in the first sub-silencing cavity 221c of annular.Multiple first voice entries include connecting first
First sub-voice entry 222c of sub-silencing cavity 221c and the connect the second sub-silencing cavity 221d second sub-voice entry 222d.The
One sub-voice entry 222c and the second sub-voice entry 222d is towards identical.
So, the first sub-silencing cavity 221c and the second sub-silencing cavity 221d constitute series-mode frame, and connecting each other can
Strengthen the erasure effect of chamber, and the area coverage of two ring-type sub-silencing cavity is relatively big, the beneficially importing of sound, meanwhile,
First sub-voice entry 222c and the second sub-voice entry 222d makes noise to be led by voice entry in time towards identical
Enter the sub-silencing cavity of correspondence.
In one embodiment, the first sub-silencing cavity 221c includes helmholtz resonance chamber, the second sub-silencing cavity 221d
Including helmholtz resonance chamber, the volume scope of the first sub-silencing cavity 221c and the second sub-silencing cavity 221d is 3*105-5*
105mm3。
So, the volume size of the first sub-silencing cavity 221c and the second sub-silencing cavity 221d is moderate, and to certain frequency model
The eradicating efficacy of the noise enclosed is preferable, such as in the frequency of about 600-5000Hz.
In one embodiment, length h3 of the first sub-voice entry 222c is 2-10mm, the first sub-voice entry
The width d3 of 222c is 2-6mm.
So, the size of the first voice entry 222c is moderate, and the duct that the first voice entry 222c is formed is less, can
Ensure the obturation effect of silencing cavity, thus ensure the erasure effect of silencing cavity.
In one embodiment, length h4 of the second sub-voice entry 222d is 2-10mm, the second sub-voice entry
The width d4 of 222d is 2-6mm.
So, the width of the second sub-voice entry 222d is moderate, and the duct that the second sub-voice entry 222d is formed is less, can
Ensure the obturation effect of silencing cavity, thus ensure the erasure effect of silencing cavity.
In one example, the volume of the first sub-silencing cavity 221c is 4*105mm3, the length of the first sub-voice entry 222c
H3 is 6mm, and the width d3 of the first sub-voice entry 222c is 4mm；The volume of the second sub-silencing cavity 221d is 4*105mm3, second
Length h4 of sub-voice entry 222d is 6mm, and the width d4 of the second sub-voice entry 222d is 4mm.
In one embodiment, the second silencing cavity 223 it is formed with between outer wall 12 and dynamical system 21.Acoustic element 22 with
Connection the second silencing cavity 223 and the second voice entry 224 of air inlet 121 it is formed with between dynamical system 21.
So, the second silencing cavity 223 may make up multistage silencing cavity, so in dynamical system with multiple first silencing cavity 221
During 21 work, reflect in noise also can be introduced the second silencing cavity 223 by the second voice entry 224 and by the second silencing cavity 223 and
Absorb, thus reduce further noise when dynamical system 21 works.
In one example, the shell of dynamical system 21 offers air inlet 214, and dynamical system 21 is by air inlet 214
Direct the air in dynamical system 21 to produce air-flow, the second silencing cavity 223 and the second voice entry 224 the most in the form of a ring, second
Silencing cavity 223 is coaxial with the second voice entry 224, the second voice entry 224 relative to the second silencing cavity 223 near air inlet
214.So, the second voice entry 224 is arranged near air inlet 214, is so beneficial to the importing of noise, and ring-type sound enters
The area coverage of mouth is relatively big, beneficially the abundant importing of noise, and the most ring-type voice entry is similar with silencing cavity structure, and noise can
Being entered sufficiently in silencing cavity by voice entry to be eliminated, the volume of silencing cavity can be fully utilized.
In the present example, the second silencing cavity 223 be positioned at the first silencing cavity 221 top and with the first silencing cavity 221
Separating, the second voice entry 224 is the gap formed between acoustic element 22 and dynamical system 21.Acoustic element 22 includes the of annular
One sub-silencing cavity 221c and second sub-silencing cavity 221d being formed in the first sub-silencing cavity 221c of annular.Acoustic element 22 also wraps
Include the first sub-voice entry 222c of connection the first sub-silencing cavity 221c and the second sub-sound connecting the second sub-silencing cavity 221d
Entrance 222d.First sub-voice entry 222c and the second sub-voice entry 222d is towards identical.Second silencing cavity the 223, first son
Silencing cavity 221c and the second sub-silencing cavity 221d constitute three grades of silencing cavity.
In one example, the first sub-silencing cavity 221c is helmholtz resonance chamber, and the second sub-silencing cavity 221d is conspicuous nurse
The most hereby resonator cavity, the second silencing cavity 223 is helmholtz resonance chamber (not shown).First sub-silencing cavity 221c, the second son disappear
Sound chamber 221d and the second silencing cavity 223 constitute three grades of helmholtz resonance chambeies.So, noise can be formed altogether in each silencing cavity
Shaking, so the erasure effect of each silencing cavity is more preferably.
In one embodiment, housing 10 includes base plate 11.Outer wall 12 upwardly extends from base plate 11.Pedestal 20 also includes
It is arranged on base plate 11 and the sound baffle 225 relative with the second voice entry 224.
So, the noise that dynamical system 21 produces when working can be reflexed to the second silencing cavity 223 by sound baffle 225
In, thus eliminated by the second silencing cavity 223, this enhance the erasure effect of the second silencing cavity 223.
At other embodiments, housing includes base plate.Outer wall upwardly extends from base plate.Pedestal also includes being arranged on base plate
And the sound baffle relative with multiple first voice entries.So, the noise produced during power system operational can be by sound
Baffle reflection is in the first silencing cavity, thus is eliminated by the first silencing cavity, this enhances the erasure effect of the first silencing cavity.
In one example, sound baffle 225 is made up of the material that hardness is bigger, such as can be by makrolon material structure
Become.So density of sound baffle 225 is relatively big, and elastic modelling quantity is higher, and sound reflection effect is preferable.
In embodiments of the present invention, the shell of dynamical system 21 offers air inlet 214, and dynamical system 21 passes through air intake
It is interior to produce air-flow that mouth 214 directs the air into dynamical system 21, and two the first voice entries 222 are equal with the second voice entry 224
Arranging near air inlet 214, sound baffle 225 is relative with two the first voice entries 222 and the second voice entry 224.As
This, produce when dynamical system 21 can be worked by sound baffle 225 in beneficially noise fully imports the silencing cavity of correspondence, meanwhile
Noise reflex in two silencing cavity, to strengthen the erasure effect of silencing cavity.
In one embodiment, sound baffle 225 includes arcwall face 225a that is opposing with base plate 11 and that raise up.
So, the reflective surface area of sound baffle 225 is relatively big, such that it is able to reflect more sound to enter corresponding noise reduction
Intracavity, reflecting effect is preferable.
Incorporated by reference to Fig. 8 and Fig. 9, in one embodiment, the bottom surface of sound baffle 225 has been downwardly extending fixing
End 225b, the bottom surface of base plate 11 is formed mating holes 11a, fixing end 225b and mating holes 11a coordinate and by sound baffle
On 225 bottom surfaces being arranged on base plate 11.So, the position of sound baffle 225 is the most fixing, is not easy to be affected by external force and send out
Raw position offsets and causes the using effect affecting sound baffle 225.
In one example, the number of fixing end 225b is 4, and 4 fixing ends constitute four angles of tetragon, base plate 11
Bottom surface on be formed 4 mating holes 11a, each fixing end 225b and corresponding mating holes 11a coordinate and by sound baffle
On 225 bottom surfaces being arranged on base plate 11.So, the position of sound baffle 225 is more firm.
In embodiments of the present invention, housing 10 also includes the dividing plate 13 extended internally from outer wall 12.Dividing plate 13 is formed
Via 131, via 131 is coaxially disposed with outer wall 12.Acoustic element 22 is arranged on the downside of dividing plate 13 and separates with dynamical system 21.
So, the position of acoustic element 22 is relatively stable.Gap between the shell of acoustic element 22 and dynamical system 21 forms the second sound
Entrance 224.
Incorporated by reference to Fig. 5, in one example, pedestal 20 includes securing member (not shown), and the housing of acoustic element 22 is opened
Being provided with the first installing hole 22a, dividing plate 13 offers the second installing hole (not shown), securing member wears the second installing hole and
One installing hole 22a and acoustic element 22 is arranged on the lower surface of dividing plate 13.So, the position of acoustic element 22 is the most firm.
It is pointed out that " lower surface " refers to pedestal 20 location status in normal conditions of use, such as such as Fig. 1
Shown in.
In one embodiment, dynamical system 21 includes impeller housing 211, impeller 212 and motor 213.Impeller housing
211 are erected in housing 10.Impeller housing 211 is formed with the air inlet 214 connected with air inlet 121.Impeller 212 is arranged on leaf
In hub cap 211.Motor 213 is used for driving impeller 212.
So, impeller housing 211 has the effect supporting and protecting to dynamical system 21, drives leaf at motor 213 simultaneously
During wheel 212 work, it is interior to produce high pressure gas that the air in entrance pedestal 20 directly can be entered dynamical system 21 by air inlet 214
Stream.
Specifically, in embodiments of the present invention, in impeller 212 is arranged on impeller housing 211.Motor 213 is used for driving
Impeller 212 rotates.Motor 213 is positioned at impeller housing 21, and the output shaft of motor 213 is fixing with impeller 212 to be connected so that motor
Impeller 212 can be driven to rotate during 213 work.
When impeller 212 rotates, negative pressure around impeller 212, can be produced, such that it is able to suck air from air inlet 214, empty
Gas, after impeller 212 pressurizes, can form high pressure draught.High pressure draught can be discharged by the air outlet 215b of dynamical system 21.
In one embodiment, dynamical system 21 also includes diffuser 215.Diffuser 215 is arranged at impeller 212 and produces
The downstream of air-flow.Diffuser 215 is connected with impeller housing 211.
So, diffuser 215 can carry out supercharging, deceleration and racemization to high pressure draught produced by impeller 212, guides height
Calm the anger and flow to the motion of air outlet 215b direction.
It is appreciated that diffuser 215 includes the height that impeller 212 can be produced by multiple fin 215a, multiple fin 215a
Pressure gas stream is integrated, and can realize eliminating the effect of whirlwind so that the gas discharged from the air outlet 215b of diffuser 215
Flow softer.
In one embodiment, the outer formation of motor 213 is useful in the motor housing 216 of fixing motor 213, motor housing
216 are formed at outside motor 213 and for fixing motor 213.Motor housing 216 and motor 213 are all located at diffuser 215 and impeller
Between 212, motor housing 216 is connected with impeller housing 211.
So, motor housing 216 can avoid motor 213 to rock in the course of the work.
Specifically, be formed between motor housing 216 and impeller housing 211 gas passage 216a, gas passage 216a with
Diffuser 215 connects.Impeller 212 when rotating produced air-flow after gas passage 216a, flow to diffuser 215, Jing Guokuo
Diffuser 215 is flowed to outer to enter rated parts, such as in fan head after depressor 215.
Incorporated by reference to Figure 10, in embodiments of the present invention, pedestal 20 includes the grating element 14 being coaxially disposed with outer wall 12.
In grating element 14 is arranged on housing 10 and cover air inlet 121.So, grating element 14 is produced in can stopping pedestal 20
Sound be directly delivered to outside pedestal 20 by air inlet 121 so that sound consumes during pedestal 20 internal reflection, thus
Decrease the sound passed to outside housing 10, serve the effect reducing noise, and in air can normally enter housing 10
Ensure that the bladeless fan with pedestal 20 normally works.
The air inlet 214 of dynamical system is made to be positioned at grating element 14 it addition, dynamical system 21 stretches into grating element 30, from
And being produced sound by air inlet 214 passes to outside pedestal 20 to make grating element 14 preferably to stop.
Distance between grating element 14 and outer wall 12 is 5-30mm.Grating element 14 and outer wall 12 are at above distance model
In enclosing so that noise to consume, thus can decrease and pass to have base by roundtrip between outer wall 12 and grating element 14
Noise outside the bladeless fan of seat 20.
Incorporated by reference to Figure 11, the bladeless fan 100 of embodiment of the present invention includes the pedestal described in any of the above-described embodiment
20。
In the bladeless fan 100 of embodiment of the present invention, multiple first silencing cavity 221 include helmholtz resonance chamber,
As shown in figure 12, curve a is the bladeless fan 100 sound pressure level curve when omitting acoustic element 22, and curve b is that bladeless fan 100 sets
It is equipped with sound pressure level curve during acoustic element 22.Wherein, vertical coordinate SPL represents the sound pressure level of the noise of bladeless fan 100, abscissa
F represents the frequency of the noise of bladeless fan 100.As seen from Figure 12, when being provided with acoustic element 22 in housing 10, without leaf
Sound pressure level and the frequency of the noise of fan 100 all decline.
In one embodiment, bladeless fan 100 includes fan 30.Fan 30 is formed with air channel (not shown) and connects
The nozzle 31 of ventilating duct.Fan 30 connects the air-flow dynamical system to be produced with pedestal 20 and sends in air channel.Further, fan
It is provided with foam in the air channel of 30.Thus, foam can absorb produced noise in air channel, such that it is able to reduce without leaf wind
The noise of fan 100.
A fan 30 upwardly extending part are curvilinear, so that air channel is curvilinear, when thus can lower air flowing
The noise produced.
In order to prevent air-flow from the junction leakage between pedestal 20 and fan 30, it is provided with close between pedestal 20 and fan 30
Sealing 40, sealing member 40 for example, sheet rubber.Sealing member 40 is for the gap between sealing base 20 and fan 30.
In one example, the hardness of sealing member 40 is between shore A40～60, and elasticity is moderate can stretch.
Incorporated by reference to Fig. 4, in one embodiment, bladeless fan 100 includes connecting plate 50.Connecting plate 50 is arranged on pedestal
Between 20 and fan 20, connecting plate 50 is used for connecting pedestal 20 and fan 30.
Connecting plate 50 is fixedly installed the first stator 51, dividing plate 13 is fixedly installed the second stator 132, the
Two stators 132 and the first stator 51 are respectively positioned in housing 10.Many stretching spring 60 stretching connect the first stators 132 and
Dynamical system 21, and stretch connection the second stator 132 and dynamical system 21.
Stretching spring 60 makes dynamical system 21 to hang up, and the vibration that dynamical system 21 produces will not directly be transmitted
On housing 10, such that it is able to reduce the noise that pedestal 20 produces.
Many stretching springs 60 include two groups, and first group of stretching spring 60 includes three, three stretching springs of first group
60 are all connected with the first stator 51 and dynamical system 21.It is preferred that the three of first group stretching springs 60 are along dynamical system 21
Circumferencial direction is uniformly arranged, say, that the angle between wherein two stretching springs 60 in first group of stretching spring 60 is
120 degree.
Three stretching springs 60 of second group are all connected with the second stator 132 and dynamical system 21.It is preferred that second group
Three stretching springs 60 are uniformly arranged along the circumferencial direction of dynamical system 21, say, that its in second group of stretching spring 60
In two stretching springs 60 between angles be 120 degree.
In one example, the stiffness factor of stretching spring 60 is at 2-4N/mm, and raw footage is in the range of 15-25mm.Example
As, the stiffness factor of stretching spring 60 is 3N/mm, and raw footage is in the range of 20mm.
As shown in the dotted arrow of Fig. 2, when bladeless fan 100 works, motor 213 drives impeller 212 to rotate, and air is successively
Being sucked by impeller 212 through air inlet 121 and air inlet 214, impeller 212 forms high pressure draught after air is accelerated pressurization,
High pressure draught enters after sequentially passing through gas passage 216a and diffuser 215 in the air channel of fan 30, finally sprays from nozzle 31,
Thus the high pressure draught of nozzle 31 ejection can be rolled up and inhale air around, thus form wind, to be embodied as user's cooling
Effect.
It addition, when bladeless fan 100 starts, the rotating speed of motor 213 is gradually increased, out of service in bladeless fan 100
Time, the rotating speed of motor 213 is gradually lowered, thus so that bladeless fan 100 slowly starts and out of service, such that it is able to fall
The vibration of low bladeless fan 100, to reduce the generation of noise.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
Can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but by it
Other characterisation contact between.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include that fisrt feature immediately below second feature and obliquely downward, or is merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example for realizing the different structure of the present invention.In order to
Simplifying disclosure of the invention, hereinafter parts and setting to specific examples are described.Certainly, they are the most merely illustrative, and
And be not intended to limit the present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiment and/or arranging
Relation.Additionally, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art are permissible
Recognize the application of other techniques and/or the use of other materials.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implement
Mode ", " example ", the description of " concrete example " or " some examples " etc. mean to combine embodiment or that example describes is concrete
Feature, structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, right
The schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, knot
Structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that:
Without departing from these embodiments being carried out multiple change in the case of the principle of the present invention and objective, revise, replace and become
Type, the scope of the present invention is limited by claim and equivalent thereof.
Claims (14)
1. a pedestal, for bladeless fan, it is characterised in that described pedestal includes:
Housing, described housing includes that outer wall, described outer wall are formed with air inlet:
It is arranged on the dynamical system in described outer wall, sets up air-flow for sucking air by described air inlet；With
Being arranged on the acoustic element in described outer wall, described acoustic element is formed with multiple first silencing cavity and is positioned at described dynamical system
And multiple first voice entries between described air inlet, each described first corresponding one described first of voice entry connection disappears
Sound chamber.
2. pedestal as claimed in claim 1, it is characterised in that described outer wall in the form of a ring, described acoustic element in the form of a ring, and with institute
State wall coaxial to be arranged between institute's air inlet and described dynamical system.
3. pedestal as claimed in claim 1, it is characterised in that the plurality of first silencing cavity includes helmholtz resonance chamber.
4. pedestal as claimed in claim 1, it is characterised in that the plurality of first silencing cavity includes the first sub-noise reduction of annular
Chamber and annular and around described first sub-silencing cavity and with described first sub-silencing cavity separate the second sub-silencing cavity, described many
Individual first voice entry includes the first sub-voice entry connecting described first sub-silencing cavity and connects described second sub-silencing cavity
The second sub-voice entry, described first sub-voice entry with described second sub-voice entry towards identical.
5. pedestal as claimed in claim 4, it is characterised in that described first sub-silencing cavity includes helmholtz resonance chamber, institute
State the second sub-silencing cavity and include helmholtz resonance chamber, described first sub-silencing cavity and the volume scope of described second sub-silencing cavity
For 3*105-5*105mm3。
6. pedestal as claimed in claim 4, it is characterised in that a length of 2-10mm of described first sub-voice entry, described
The width of the first sub-voice entry is 2-6mm, a length of 2-10mm of described second sub-voice entry, and described second sub-sound enters
The width of mouth is 2-6mm.
7. pedestal as claimed in claim 1, it is characterised in that the plurality of first silencing cavity includes the first sub-noise reduction of annular
Chamber and the second sub-silencing cavity being formed in described first sub-silencing cavity of annular, the plurality of first voice entry includes connection
First sub-voice entry of described first sub-silencing cavity and the second sub-voice entry connecting described second sub-silencing cavity, described
One sub-voice entry with described second sub-voice entry towards identical.
8. pedestal as claimed in claim 7, it is characterised in that described first sub-silencing cavity includes helmholtz resonance chamber, institute
State the second sub-silencing cavity and include helmholtz resonance chamber, described first sub-silencing cavity and the volume scope of described second sub-silencing cavity
For 3*105-5*105mm3。
9. pedestal as claimed in claim 8, it is characterised in that a length of 2-10mm of described first sub-voice entry, described
The width of the first sub-voice entry is 2-6mm, a length of 2-10mm of described second sub-voice entry, and described second sub-sound enters
The width of mouth is 2-6mm.
10. pedestal as claimed in claim 1, it is characterised in that be formed with second between described outer wall and described dynamical system
Silencing cavity, is formed between described acoustic element with described dynamical system and connects described second silencing cavity and the second of described air inlet
Voice entry.
11. pedestals as claimed in claim 10, it is characterised in that described housing includes base plate, and described outer wall is from described base plate
Upwardly extending, described pedestal also includes being arranged on described base plate and the sound baffle relative with described second voice entry.
12. pedestals as claimed in claim 1, it is characterised in that described housing includes base plate, described outer wall from described base plate to
Upper extension, described pedestal also includes being arranged on described base plate and the sound reflection relative with the plurality of first voice entry
Plate.
13. pedestals as described in claim 11 or 12, it is characterised in that described sound baffle includes opposing with described base plate
And the arcwall face raised up.
14. 1 kinds of bladeless fans, it is characterised in that include the pedestal as described in claim 1-13 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025730.2A CN106321525B (en) | 2016-11-15 | 2016-11-15 | Pedestal and bladeless fan |
| PCT/CN2016/112097 WO2018090439A1 (en) | 2016-11-15 | 2016-12-26 | Base and bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025730.2A CN106321525B (en) | 2016-11-15 | 2016-11-15 | Pedestal and bladeless fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321525A true CN106321525A (en) | 2017-01-11 |
| CN106321525B CN106321525B (en) | 2019-05-31 |
Family
ID=57816520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611025730.2A Active CN106321525B (en) | 2016-11-15 | 2016-11-15 | Pedestal and bladeless fan |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106321525B (en) |
| WO (1) | WO2018090439A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870422A (en) * | 2017-04-28 | 2017-06-20 | 广东美的环境电器制造有限公司 | Bladeless fan |
| CN106870417A (en) * | 2017-03-13 | 2017-06-20 | 美的集团股份有限公司 | Pedestal and bladeless fan |
| WO2018176234A1 (en) * | 2017-03-28 | 2018-10-04 | 美的集团股份有限公司 | Base and bladeless fan |
| CN108953194A (en) * | 2018-08-25 | 2018-12-07 | 北京天然天启科技有限公司 | A kind of bladeless fan |
| CN109106276A (en) * | 2017-06-26 | 2019-01-01 | 美的集团股份有限公司 | Dust catcher |
| CN109356885A (en) * | 2018-12-06 | 2019-02-19 | 珠海格力电器股份有限公司 | The mounting structure and bladeless fan of bladeless fan |
| CN110159568A (en) * | 2019-06-12 | 2019-08-23 | 珠海格力电器股份有限公司 | Guiding device and bladeless fan |
| CN110345110A (en) * | 2018-04-03 | 2019-10-18 | 德昌电机(深圳)有限公司 | The ventilation fan of silencing means and the application silencing means |
| CN111237217A (en) * | 2018-11-29 | 2020-06-05 | 曾固 | Fluid centrifugal through-flow action structure |
| CN111520365A (en) * | 2020-06-18 | 2020-08-11 | 追创科技(苏州)有限公司 | Fan housing and fan with same |
| CN114673696A (en) * | 2022-05-30 | 2022-06-28 | 长城汽车股份有限公司 | Fan housing assembly, fan and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114109562B (en) * | 2021-12-31 | 2024-05-28 | 中科灵动航空科技成都有限公司 | Silencer for unmanned aerial vehicle power generation system |
| CN116524890B (en) * | 2023-07-04 | 2023-09-15 | 苏州浪潮智能科技有限公司 | Wind-guiding noise reduction device and server |
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| CN106870417B (en) * | 2017-03-13 | 2019-12-31 | 美的集团股份有限公司 | Base and bladeless fan |
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| CN111237217A (en) * | 2018-11-29 | 2020-06-05 | 曾固 | Fluid centrifugal through-flow action structure |
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| CN109356885A (en) * | 2018-12-06 | 2019-02-19 | 珠海格力电器股份有限公司 | The mounting structure and bladeless fan of bladeless fan |
| CN110159568A (en) * | 2019-06-12 | 2019-08-23 | 珠海格力电器股份有限公司 | Guiding device and bladeless fan |
| CN111520365A (en) * | 2020-06-18 | 2020-08-11 | 追创科技(苏州)有限公司 | Fan housing and fan with same |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018090439A1 (en) | 2018-05-24 |
| CN106321525B (en) | 2019-05-31 |
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Effective date of registration: 20210318 Address after: 528311 4 Global Innovation Center, industrial road, Beijiao Town, Shunde District, Foshan, Guangdong, China Patentee after: GUANGDONG MEIDI WHITE HOUSEHOLD ELECTRICAL APPLIANCE TECHNOLOGY INNOVATION CENTER Co.,Ltd. Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: MIDEA GROUP Co.,Ltd. |