CN106438502A - Base and bladeless fan - Google Patents
Base and bladeless fan Download PDFInfo
- Publication number
- CN106438502A CN106438502A CN201611025589.6A CN201611025589A CN106438502A CN 106438502 A CN106438502 A CN 106438502A CN 201611025589 A CN201611025589 A CN 201611025589A CN 106438502 A CN106438502 A CN 106438502A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- air inlet
- air
- wall
- housing
- 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.)
- Granted
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Classifications
-
- 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
- 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
- F04D29/665—Sound attenuation by means of resonance chambers or interference
Abstract
The invention discloses a base and a bladeless fan. The base comprises a shell, a power system and a silencer, the shell comprises an outer wall, the power system is arranged inside the outer wall, the silencer is arranged inside the outer wall, an air inlet is formed in the outer wall, and the power system is used for inhaling air through the air inlet to form airflow; the silencer comprises a first muffling cavity and a first sound entrance, wherein the first sound entrance is communicated with the first muffling cavity and located between the power system and the air inlet. When running, the power system is used for introducing noise, generated by inhaling of the air to the inside of the outer wall through the air inlet, into the first muffling cavity through the first sound entrance, and then the first muffling cavity is used for reflecting and absorbing the noise so as to eliminate the noise, at the same time, the noise generated by the running of the power system can be introduced into the first muffling cavity through the first sound entrance in advance before diffusing toward the air inlet and is reflected and absorbed by the first muffling cavity.
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 is arranged on the dynamical system of inside the shell.Shell is formed
There is air inlet, during work, dynamical system sucks air by air inlet and sets up air-flow.But send during power system operational
Noise is larger and the noise of bladeless fan can be led to larger by air inlet to external diffusion.
Content of the invention
It is contemplated that at least solving one of technical problem present in prior art.For this reason, 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 outer wall, and described dynamical system is 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 is used for setting up air-flow by described air inlet suction air, described acoustic element shape
Become to have the first silencing cavity and connect described first silencing cavity and be located at the first sound between described dynamical system and described air inlet
Sound entrance.
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, due to being provided with acoustic element in outer wall, and acoustic element is formed with the first noise reduction
Chamber and connection the first silencing cavity and be located at the first voice entry between dynamical system and air inlet, so in power system operational
When, air is sucked, by air inlet, the noise producing in outer wall and can introduce the first silencing cavity by the first voice entry by dynamical system
Interior and by the first noise reduction cavity reflection and absorb to abate the noise, meanwhile, the noise sending during power system operational is to air inlet
Can shift to an earlier date before diffusion and be introduced in the first silencing cavity and by the first noise reduction cavity reflection and absorption by the first voice entry, so, move
The noise being formed during Force system work has obtained effective reduction.
In one embodiment, described outer wall is annular in shape, and described acoustic element is annular in shape, and arranges with described wall coaxial
Between institute's air inlet and described dynamical system.
In one embodiment, described air inlet is formed with the air admission hole being arranged in array, and described air admission hole is along described
The circumferencial direction distribution of outer wall.
In one embodiment, described air inlet is in multiple array arrangements along the circumferencial direction of described outer wall, adjacent
Two described array spacings settings.
In one embodiment, described air admission hole is rounded, a diameter of 1-3mm of described air admission hole.
In one embodiment, the distance between two neighboring described air admission hole is 1-3mm.
In one embodiment, described first silencing cavity includes helmholtz resonance chamber.
In one embodiment, the volume scope of described first silencing cavity is 3*105-5*105mm3.
In one embodiment, the length of described first voice entry is 2-10mm, the width of described first voice entry
Spend for 2-6mm.
In one embodiment, it is formed with the second silencing cavity, described noise reduction between described outer wall and described dynamical system
It is formed with the second sound entrance connecting described second silencing cavity and described air inlet between part and described dynamical system.
In one embodiment, described housing includes base plate, and described outer wall upwardly extends from described base plate, described pedestal
Also include being arranged on described base plate and the sound baffle relative with described second sound entrance.
In one embodiment, described housing includes base plate, and described outer wall upwardly extends from described base plate, described pedestal
Also include being arranged on described base plate and the sound baffle relative with described first voice entry.
In one embodiment, described sound baffle includes arcwall face that is opposite with described base plate and raising up.
In one embodiment, described dynamical system includes impeller housing, impeller, motor and diffuser, described impeller
Shell is erected in described housing, and described impeller housing is formed with the air inlet connecting with described air inlet, described impeller setting
In described impeller housing, described motor is used for driving described impeller, and described diffuser is arranged at the air-flow that described impeller produces
Downstream, described diffuser is connected with described impeller housing.
In one embodiment, it is formed with the motor housing for fixing described motor, described motor outside described motor
With described motor housing is all between described diffuser and described impeller, described motor housing is connected with described impeller housing.
The bladeless fan of embodiment of the present invention includes the pedestal described in any of the above-described embodiment.
In one embodiment, described bladeless fan includes fanning head, and described fan head is formed with air channel and connects described wind
The nozzle in road, described fan head is connected with described pedestal to be sent in described air channel with the air-flow producing described dynamical system, described
Seal is used for sealing the gap between described pedestal and described fan head.
The additional aspect of embodiment of the present invention and advantage will be set forth in part in the description, partly by from following
Become obvious in description, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from reference to the description to embodiment for the accompanying drawings below
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 the schematic perspective view of the sound baffle of the pedestal of embodiment of the present invention.
Fig. 8 is the schematic perspective view of the base plate of the pedestal of embodiment of the present invention.
Fig. 9 is the schematic perspective view of the bladeless fan of embodiment of the present invention.
Figure 10 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 admission hole 122, dividing plate 13, via 131,
Two stators 132；
Dynamical system 21, impeller housing 211, impeller 212, motor 213, air inlet 214, diffuser 215, motor housing
216th, fin 215a, air outlet 215b, gas passage 216a；
Acoustic element 22, the first installing hole 22a, the first silencing cavity 221, the first voice entry 222, the second silencing cavity 223,
Two voice entries 224, sound baffle 225, arcwall face 225a, fixing end 225b；
Fan 30, nozzle 31；
Seal 40；
Connecting plate 50, the first stator 51；
Extension spring 60.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings 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 ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise " or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplification describe, rather than the device of instruction or hint indication or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, are therefore not considered as limiting the invention.Additionally, term " first ", " second " are only used for
Description purpose, and it is not intended that indicating or hint relative importance or the implicit quantity indicating indicated technical characteristic.
Thus, define " first ", the feature of " second " can be expressed or implicitly include one or more described feature.?
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 " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected.Can
To be to be mechanically connected or 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.
See 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 is used for setting up air-flow by air inlet 121 suction air.Acoustic element 22 is formed with
First silencing cavity 221 and connection the first silencing cavity 221 and be located at the first voice entry between dynamical system 21 and air inlet 121
222.
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, due to being provided with acoustic element 22 in outer wall 12, and acoustic element 22 is formed with
One silencing cavity 221 and connection the first silencing cavity 221 and be located at the first voice entry between dynamical system 21 and air inlet 121
222, so when dynamical system 21 works, air is sucked making an uproar of producing in outer wall 12 by dynamical system 21 by air inlet 121
Sound can be introduced in the first silencing cavity 221 and reflected and absorbed by the first silencing cavity 221 by the first voice entry 222 and be made an uproar with eliminating
Sound, meanwhile, the noise sending during dynamical system 21 work can shift to an earlier date by the first voice entry to before air inlet 121 diffusion
222 introduce in the first silencing cavity 221 and are reflected and absorbed by the first silencing cavity 221, so, are formed during dynamical system 21 work
Noise has obtained effective reduction.
In the present example, the duct that the first voice entry 222 is formed is less, and the first silencing cavity 221 is by with first
Voice entry 222 is in communication with the outside, and noise can be reflected and absorb in the first silencing cavity 221, and the as first silencing cavity 221 can be by
Acoustic energy changes into heat energy and eliminates.
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, outer wall 12 is annular in shape, and acoustic element 22 is annular in shape, and is coaxially disposed air inlet with outer wall 12
Between 121 and dynamical system 21.
So, the outer wall 12 of ring-type makes the bladeless fan 100 with housing 10 more attractive in appearance, and beneficial to air with more
The entrance of uniform mode, incoming air area is larger simultaneously and air intake no dead angle, and acoustic element 22 is coaxially disposed and can ensure with outer wall 12
The noise being produced by dynamical system 21 can more fully be introduced in the first silencing cavity 221 by the first voice entry 222 and by the
One silencing cavity 221 reflects and absorbs, and the mode being simultaneously coaxially disposed makes the structure of pedestal 20 relatively stable, beneficial to pedestal 20
Install and place.
In one embodiment, air inlet 121 is formed with the air admission hole 122 being arranged in array, and air admission hole 122 is along outer wall
12 circumferencial direction distribution.
So, the air inlet area of air inlet 121 is larger and air inlet is more uniform.
In one embodiment, air inlet 121 is in multiple array arrangements along the circumferencial direction of outer wall 12, adjacent two
Array spacings are arranged.
So, both can ensure that air inlet 121 had larger air inlet area, can ensure that the intensity of outer wall 12 again, from
And ensureing the structural stability of housing 10, the mode of multiple array spacings arrangements can reduce air inlet to a certain extent simultaneously
During 121 air intake between air-flow and the interphase interaction of air-flow and air admission hole 122 and the noise that produces.
In one embodiment, air admission hole 122 is rounded, a diameter of 1-3mm of air admission hole 122.
So, being of moderate size of air admission hole 122, while ensureing air inlet area that air inlet 121 has abundance, helps
The noise producing when reduction air inlet 121 air intake.
In one example, a diameter of 2mm of air admission hole 122.So, being of moderate size of air admission hole 122, and air admission hole
122 to open up difficulty relatively low.
In one embodiment, the distance between two neighboring air admission hole 122 is 1-3mm.
So, the distance between adjacent air admission hole 122 is moderate, so can either ensure the incoming air area of air inlet 121, with
When can avoid again due to the distance between air admission hole 122 excessively near and make between air-flow and air-flow and air admission hole 122 between phase
Interreaction force is excessive and produces larger noise.
In one example, the distance between air admission hole 122 is 2mm.So, the distance between air admission hole 122 is moderate.
In one embodiment, the first silencing cavity 221 includes helmholtz resonance chamber (not shown).
So, noise can form resonance in the first silencing cavity 221, and the erasure effect of such first silencing cavity 221 is more preferably.
In one embodiment, the volume scope of the first silencing cavity 221 is 3*105-5*105mm3.
So, the volume size of the first silencing cavity 221 is moderate, and to the eradicating efficacy of the noise of certain frequency scope relatively
Good, such as in 600-5000Hz about frequency.
In some instances, the volume of the first silencing cavity 221 can be 3*105mm3、4*105mm3、4.5*105mm3Or 5*
105mm3.
Incorporated by reference to Fig. 6, in one embodiment, length h of the first voice entry 222 is 2-10mm.
So, the moderate length of the first voice entry 222, the duct that the first voice entry 222 is formed less it is ensured that the
The obturation effect of one silencing cavity 221, thus ensure the erasure effect of the first silencing cavity 221.
In some instances, length h of the first voice entry 222 can for 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm or
9mm.
In one embodiment, the width d of the first voice entry 222 is 2-6mm.
So, the width of the first voice entry 222 is moderate, the duct that the first voice entry 222 is formed less it is ensured that the
The obturation effect of one silencing cavity 221, thus ensure the erasure effect of the first silencing cavity 221.
In some instances, the width d of the first voice entry 222 can be 2mm, 3mm, 4mm, 5mm or 6mm.
In another example, the volume of the first silencing cavity 221 is 4*105mm3, length h of the first voice entry 222 is
6mm, the width d of the first voice entry 222 is 4mm.
In one example, the shell of dynamical system 21 offers air inlet 214, and dynamical system 21 passes through air inlet 214
Direct the air into produce air-flow in dynamical system 21, the first silencing cavity 221 and the first voice entry 222 are all annular in shape, first
Silencing cavity 221 is coaxial with the first voice entry 222, and the first voice entry 222 is with respect to the first silencing cavity 221 near air inlet
214.So, the first voice entry 222 is arranged near air inlet 214, is so beneficial to the importing of noise, and the sound of ring-type enters
The area coverage of mouth is larger, and beneficial to the abundant importing of noise, the voice entry of ring-type is similar with noise reduction cavity configuration simultaneously, and noise can
Entered sufficiently in silencing cavity by voice entry and be eliminated, the volume of silencing cavity can be fully utilized.
In one embodiment, it is formed with the second silencing cavity 223 between outer wall 12 and dynamical system 21.Acoustic element 22 with
It is formed with the second sound entrance 224 of connection the second silencing cavity 223 and air inlet 121 between dynamical system 21.
So, the second silencing cavity 223 and the first silencing cavity 221 may make up two-stage silencing cavity, so in dynamical system 21 work
When making, noise also can introduce in the second silencing cavity 223 by second sound entrance 224 and be reflected and absorbed by the second silencing cavity 223,
Thus reduce further noise during dynamical system 21 work.
In one example, the second silencing cavity 223 be located at the first silencing cavity 221 top and with the first silencing cavity 221 every
Open, second sound entrance 224 is the gap being formed between acoustic element 22 and dynamical system 21.The length in gap can be 2-10mm,
The width in gap can be 2-6mm.
In one example, the shell of dynamical system 21 offers air inlet 214, and dynamical system 21 passes through air inlet 214
Direct the air into produce air-flow in dynamical system 21, the second silencing cavity 223 is all annular in shape with second sound entrance 224, second
Silencing cavity 223 is coaxial with second sound entrance 224, and second sound entrance 224 is with respect to the second silencing cavity 223 near air inlet
214.So, second sound entrance 224 is arranged near air inlet 214, is so beneficial to the importing of noise, and the sound of ring-type enters
The area coverage of mouth is larger, and beneficial to the abundant importing of noise, the voice entry of ring-type is similar with noise reduction cavity configuration simultaneously, and noise can
Entered sufficiently in silencing cavity by voice entry and be eliminated, the volume of silencing cavity can be fully utilized.
In one example, the first silencing cavity 221 is helmholtz resonance chamber, and the second silencing cavity 223 is that Helmholtz is humorous
Shake chamber (not shown).First silencing cavity 221 and the second silencing cavity 223 constitute two-stage helmholtz resonance chamber.So, noise can
Form resonance in the first silencing cavity 221 and the second silencing cavity 223, the disappearing of such first silencing cavity 221 and the second silencing cavity 223
Sound is better.
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 second sound entrance 224.
So, the noise producing during dynamical system 21 work can reflex to the second silencing cavity 223 by sound baffle 225
Interior, thus being eliminated by the second silencing cavity 223, this enhance the erasure effect of the second silencing cavity 223.
In other embodiment, 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 the first voice entry.So, the noise producing during power system operational can be by sound reflection
Plate reflexes in the first silencing cavity, thus being 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 of hardness is bigger, for example can be by makrolon material structure
Become.The density of so sound baffle 225 is larger, 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
Mouth 214 directs the air in dynamical system 21 to produce air-flow, and the first voice entry 222 and second sound entrance 224 are close to
Air inlet 214 is arranged, and sound baffle 225 is relative with the first voice entry 222 and second sound entrance 224.So, beneficial to making an uproar
Sound fully imports in corresponding silencing cavity, meanwhile, the noise reflection that sound baffle 225 produces when dynamical system 21 can work
To two silencing cavity, to strengthen the erasure effect of silencing cavity.
In one embodiment, sound baffle 225 includes arcwall face 225a that is opposite with base plate 11 and raising up.
So, the reflective surface area of sound baffle 225 is larger, enters corresponding noise reduction such that it is able to reflect more sound
In chamber, reflecting effect is preferable.
Incorporated by reference to Fig. 7 and Fig. 8, in one embodiment, the bottom surface of sound baffle 225 has been downwardly extending fixation
End 225b, the bottom surface of base plate 11 is formed with 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 more fixing, is not easy to be affected by external force and sends out
Raw position offsets and leads to affect the using effect of sound baffle 225.
In one example, the number of fixing end 225b is 4, and 4 fixing ends constitute four angles of quadrangle, base plate 11
Bottom surface on be formed with 4 mating holes 11a, each fixing end 225b is coordinated with corresponding mating holes 11a 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 extending internally from outer wall 12.Dividing plate 13 is formed with
Via 131, via 131 is coaxially disposed with outer wall 12.Acoustic element 22 is arranged on the downside of dividing plate 13 and is separated 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 second sound
Entrance 224.
Refer to Fig. 5, in one example, pedestal 20 includes securing member (not shown), and the housing of acoustic element 22 is opened
It is 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 more firm.
It is pointed out that " lower surface " refers to pedestal 20 location status in normal conditions of use, such as Fig. 1
Shown.
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 connecting 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 in motor 213 simultaneously
During wheel 212 work, entering the air in pedestal 20 can directly be entered in dynamical system 21 by air inlet 214 to produce high pressure gas
Stream.
Specifically, in embodiments of the present invention, impeller 212 is arranged in impeller housing 211.Motor 213 is used for driving
Impeller 212 rotates.Motor 213 is located in impeller housing 21, and the output shaft of motor 213 is fixedly connected with impeller 212 so that motor
Impeller 212 can be driven to rotate during 213 work.
During impeller 212 rotation, 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 pressurization, 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
Air-flow downstream.Diffuser 215 is connected with impeller housing 211.
So, diffuser 215 can carry out being pressurized, slow down and racemization to high pressure draught produced by impeller 212, and guiding is high
Calm the anger and flow to the motion of air outlet 215b direction.
It is appreciated that diffuser 215 includes multiple fin 215a, the height that multiple fin 215a can produce to impeller 212
Pressure gas stream is integrated, and can realize eliminating the effect of whirlwind the gas so that discharging from the air outlet 215b of diffuser 215
Stream is softer.
In one embodiment, it is formed with the motor housing 216 for fixing motor 213, motor housing outside motor 213
216 are formed at outside motor 213 and are used 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 with gas passage 216a between motor housing 216 and impeller housing 211, gas passage 216a with
Diffuser 215 connects.During impeller 212 rotation, produced air-flow flows to diffuser 215, Jing Guokuo after gas passage 216a
Flow to after depressor 215 outside diffuser 215 to enter rated parts, such as in fan head.
Incorporated by reference to Fig. 9, 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, the first silencing cavity 221 includes helmholtz resonance chamber, such as schemes
Shown in 10, curve a is the sound pressure level curve that bladeless fan 100 omits during acoustic element 22, and curve b is provided with for bladeless fan 100
Sound pressure level curve during acoustic element 22.Wherein, ordinate SPL represents the sound pressure level of the noise of bladeless fan 100, abscissa f table
Show the frequency of the noise of bladeless fan 100.As seen from Figure 10, when being provided with acoustic element 22 in housing 10, no leaf wind
The sound pressure level of noise of fan 100 and frequency 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 is connected with pedestal 20 to be sent in air channel with the air-flow producing dynamical system.Further, fan
It is provided with foam in 30 air channel.Thus, foam can absorb produced noise in air channel, such that it is able to reduce no leaf wind
The noise of fan 100.
Fan 30 is upwardly extending partly curvilinear, so that air channel is curvilinear, when thus can lower air flow
The noise producing.
In order to prevent junction leakage between pedestal 20 and fan 30 for the air-flow, it is provided with close between pedestal 20 and fan 30
Sealing 40, seal 40 is, for example, sheet rubber.Seal 40 is used for the gap between sealing base 20 and fan 30.
In one example, the hardness of seal 40 is between shore A40～60, and elasticity is moderate can to 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.
First stator 51 is fixedly installed on connecting plate 50, 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.The stretching of many extension springs 60 connect the first stators 132 and
Dynamical system 21, and stretching connection the second stator 132 and dynamical system 21.
Extension spring 60 allows dynamical system 21 to hang up, and the vibration that dynamical system 21 produces will not directly be transmitted
To on housing 10, such that it is able to reduce the noise of pedestal 20 generation.
Many extension springs 60 include two groups, and first group of extension spring 60 includes three, first group of three extension springs
60 are all connected with the first stator 51 and dynamical system 21.It is preferred that the three of first group extension springs 60 are along dynamical system 21
Circumferencial direction uniformly arrangement that is to say, that the angle between wherein two extension springs 60 in first group of extension spring 60 is
120 degree.
Second group of three extension springs 60 are all connected with the second stator 132 and dynamical system 21.It is preferred that second group
Three extension springs 60 along dynamical system 21 circumferencial direction uniformly arrangement that is to say, that its in second group of extension spring 60
In angle between two extension springs 60 be 120 degree.
In one example, in 2-4N/mm, the scope of raw footage is 15-25mm to the stiffness factor of extension spring 60.Example
As the stiffness factor of extension spring 60 is 3N/mm, and the scope of raw footage is 20mm.
As shown in the dotted arrow of Fig. 2, during bladeless fan 100 work, motor 213 drives impeller 212 to rotate, and air is successively
Sucked by impeller 212 through air inlet 121 and air inlet 214, air is accelerated to form high pressure draught after pressurization by impeller 212,
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 that nozzle 31 sprays can roll up the air around inhaling, thus forming wind, to be embodied as user's cooling
Effect.
In addition, when bladeless fan 100 starts, the rotating speed of motor 213 is gradually increased, out of service in bladeless fan 100
When, 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 drop
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
The first and second feature directly contacts can be included not to be directly contact but passes through it is also possible to include the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", that " top " and " above " include 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 fisrt feature immediately below second feature and obliquely downward, or be 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
Simplify disclosure of the invention, hereinafter the part and setting of specific examples is described.Certainly, they are only merely illustrative, and
And purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter,
This repeat to be for purposes of simplicity and clarity, itself do not indicate discussed various embodiment and/or setting between
Relation.Additionally, the invention provides various specific technique and material example, 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 enforcement
The description of mode ", " example ", " specific example " or " some examples " etc. means concrete with reference to embodiment or example description
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：?
These embodiments can be carried out in the case of principle without departing from the present invention and objective with multiple changes, modification, replacement and become
Type, the scope of the present invention is limited by claim and its equivalent.
Claims (15)
1. a kind of pedestal, for bladeless fan it is characterised in that described pedestal includes：
Housing, described housing includes outer wall, and described outer wall is formed with air inlet：
It is arranged on the dynamical system in described outer wall, set up air-flow for air is sucked by described air inlet；With
Be arranged on the acoustic element in described outer wall, described acoustic element be formed with the first silencing cavity and connect described first silencing cavity and
The first voice entry between described dynamical system and described air inlet.
2., it is characterised in that described outer wall is annular in shape, described acoustic element is annular in shape for pedestal as claimed in claim 1, and with institute
State wall coaxial to be arranged between institute's air inlet and described dynamical system.
3. pedestal as claimed in claim 2 is it is characterised in that described air inlet is formed with the air admission hole being arranged in array, institute
State air admission hole along the circumferencial direction distribution of described outer wall.
4. pedestal as claimed in claim 2 it is characterised in that described air inlet along described outer wall circumferencial direction be in multiple battle arrays
Row arrangement, two adjacent described array spacings are arranged.
5. pedestal as claimed in claim 1 is it is characterised in that described first silencing cavity includes helmholtz resonance chamber.
6. pedestal as claimed in claim 5 is it is characterised in that the volume scope of described first silencing cavity is 3*105-5*
105mm3.
7. pedestal as claimed in claim 1 is it is characterised in that the length of described first voice entry is 2-10mm, described the
The width of one voice entry is 2-6mm.
8. pedestal as claimed in claim 1 disappears it is characterised in that being formed with second between described outer wall and described dynamical system
Sound chamber, is formed with the rising tone connecting described second silencing cavity and described air inlet between described acoustic element and described dynamical system
Sound entrance.
9. pedestal as claimed in claim 8 is 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 baffle relative with described second sound entrance.
10. pedestal as claimed in claim 1 is 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 baffle relative with described first voice entry.
11. pedestals as described in claim 9 or 10 it is characterised in that described sound baffle include opposite with described base plate
And the arcwall face raising up.
12. pedestals as claimed in claim 1 are it is characterised in that described dynamical system includes：
Impeller housing, described impeller housing is erected in described housing, and described impeller housing is formed with and is connected with described air inlet
Air inlet；
Impeller, described impeller is arranged in described impeller housing；With
Motor, described motor is used for driving described impeller；
Diffuser, described diffuser is arranged at the downstream of the air-flow that described impeller produces, described diffuser and described impeller housing
Connect.
13. pedestals as claimed in claim 12 are it is characterised in that be formed with the electricity for fixing described motor outside described motor
Machine shell, described motor and described motor housing all between described diffuser and described impeller, described motor housing and institute
State impeller housing to connect.
A kind of 14. bladeless fans are it is characterised in that include the pedestal as described in claim 1-13 any one.
15. bladeless fans as claimed in claim 14 are it is characterised in that described bladeless fan includes fanning head, described fan capitiform
Become to have air channel and the nozzle connecting described air channel, described fan head connects the air-flow to produce described dynamical system with described pedestal
Send in described air channel, described bladeless fan includes seal, described seal be used for sealing described pedestal and described fan head it
Between gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025589.6A CN106438502B (en) | 2016-11-15 | 2016-11-15 | Pedestal and bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025589.6A CN106438502B (en) | 2016-11-15 | 2016-11-15 | Pedestal and bladeless fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438502A true CN106438502A (en) | 2017-02-22 |
| CN106438502B CN106438502B (en) | 2019-02-19 |
Family
ID=58221448
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611025589.6A Active CN106438502B (en) | 2016-11-15 | 2016-11-15 | Pedestal and bladeless fan |
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| Country | Link |
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| CN (1) | CN106438502B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895018A (en) * | 2017-04-28 | 2017-06-27 | 广东美的环境电器制造有限公司 | For the pedestal and bladeless fan of bladeless fan |
| CN106958532A (en) * | 2017-04-28 | 2017-07-18 | 广东美的环境电器制造有限公司 | For the pedestal of bladeless fan and the bladeless fan with it |
| WO2018195991A1 (en) * | 2017-04-28 | 2018-11-01 | 广东美的环境电器制造有限公司 | Pedestal for bladeless fan, and bladeless fan having same |
| CN109106276A (en) * | 2017-06-26 | 2019-01-01 | 美的集团股份有限公司 | Dust catcher |
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| GB2502106A (en) * | 2012-05-16 | 2013-11-20 | Dyson Technology Ltd | Bladeless fan |
| GB2510195A (en) * | 2013-01-29 | 2014-07-30 | Dyson Technology Ltd | Humidifier |
| CN206409435U (en) * | 2016-11-15 | 2017-08-15 | 美的集团股份有限公司 | Pedestal and bladeless fan |
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| CN201963613U (en) * | 2010-12-20 | 2011-09-07 | 徐伟 | Air inlet structure of bladeless fan |
| CN102305220A (en) * | 2011-08-16 | 2012-01-04 | 江西维特科技有限公司 | Low-noise blade-free fan |
| GB2502106A (en) * | 2012-05-16 | 2013-11-20 | Dyson Technology Ltd | Bladeless fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895018A (en) * | 2017-04-28 | 2017-06-27 | 广东美的环境电器制造有限公司 | For the pedestal and bladeless fan of bladeless fan |
| CN106958532A (en) * | 2017-04-28 | 2017-07-18 | 广东美的环境电器制造有限公司 | For the pedestal of bladeless fan and the bladeless fan with it |
| WO2018195991A1 (en) * | 2017-04-28 | 2018-11-01 | 广东美的环境电器制造有限公司 | Pedestal for bladeless fan, and bladeless fan having same |
| GB2575560A (en) * | 2017-04-28 | 2020-01-15 | Gd Midea Env Appliances Mfg Co Ltd | Pedestal for bladeless fan, and bladeless fan having same |
| GB2575560B (en) * | 2017-04-28 | 2021-09-15 | Gd Midea Env Appliances Mfg Co Ltd | Pedestal for bladeless fan, and bladeless fan having same |
| CN106958532B (en) * | 2017-04-28 | 2023-02-28 | 广东美的环境电器制造有限公司 | Base for bladeless fan and bladeless fan with same |
| CN106895018B (en) * | 2017-04-28 | 2023-05-16 | 广东美的环境电器制造有限公司 | Base for bladeless fan and bladeless fan |
| CN109106276A (en) * | 2017-06-26 | 2019-01-01 | 美的集团股份有限公司 | Dust catcher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438502B (en) | 2019-02-19 |
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Effective date of registration: 20210322 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. |