CN106438502B - Pedestal and bladeless fan - Google Patents
Pedestal and bladeless fan Download PDFInfo
- Publication number
- CN106438502B CN106438502B CN201611025589.6A CN201611025589A CN106438502B CN 106438502 B CN106438502 B CN 106438502B CN 201611025589 A CN201611025589 A CN 201611025589A CN 106438502 B CN106438502 B CN 106438502B
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- China
- Prior art keywords
- pedestal
- air inlet
- wall
- silencing cavity
- air
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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 kind of pedestal and bladeless fans, pedestal includes shell, dynamical system and acoustic element, shell includes outer wall, dynamical system is arranged in outer wall, acoustic element is arranged in outer wall, outer wall is formed with air inlet, and dynamical system is used to suck air by air inlet and establishes air-flow, and acoustic element is formed with the first silencing cavity and the first silencing cavity of connection and the first voice entry between dynamical system and air inlet.In this way in power system operational, dynamical system can be introduced air in the first silencing cavity and by the first noise reduction cavity reflection and absorption to eliminate noise by the noise generated in air inlet sucking outer wall by the first voice entry, meanwhile the noise issued when power system operational can shift to an earlier date before spreading to air inlet by the first voice entry the first silencing cavity of introducing and by the first noise reduction cavity reflection and absorption.
Description
Technical field
The present invention relates to living electric apparatus fields, more particularly, to a kind of pedestal and bladeless fan.
Background technique
Existing bladeless fan includes pedestal.Pedestal includes the dynamical system of shell and setting inside the shell.Shell is formed
There is an air inlet, when work, dynamical system sucks air by air inlet and establishes air-flow.However issued when power system operational
Noise is larger and the noise of bladeless fan can be caused larger by air inlet to external diffusion.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention needs to provide one
Kind pedestal and bladeless fan.
The pedestal of embodiment of the present invention can be used for bladeless fan, and the pedestal includes shell, dynamical system and acoustic element,
The shell includes outer wall, and the dynamical system is arranged in the outer wall, and the acoustic element is arranged in the outer wall, described
Outer wall is formed with air inlet, and the dynamical system, which is used to suck air by the air inlet, establishes air-flow, the acoustic element shape
At having the first silencing cavity and connection first silencing cavity and the first sound between the dynamical system and the air inlet
Sound entrance.
The pedestal of embodiment of the present invention can be applied 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 the first silencing cavity of connection and the first voice entry between dynamical system and air inlet, in this way in power system operational
When, air can be introduced the first silencing cavity by the first voice entry by the noise generated in air inlet sucking outer wall by dynamical system
It is interior and by the first noise reduction cavity reflection and absorb to eliminate noise, meanwhile, the noise that when power system operational issues is to air inlet
It 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, in this way, dynamic
The noise that Force system is formed when working is effectively reduced.
In one embodiment, the outer wall is annular in shape, and the acoustic element is annular in shape, and is arranged with the wall coaxial
Between institute's air inlet and the dynamical system.
In one embodiment, the air inlet is formed with the air inlet being arranged in array, and the air inlet is described in
The circumferencial direction of outer wall is distributed.
In one embodiment, the air inlet is in multiple array arrangements along the circumferencial direction of the outer wall, adjacent
Two array spacings settings.
In one embodiment, the air inlet is rounded, and the diameter of the air inlet is 1-3mm.
In one embodiment, the distance between two neighboring described air inlet is 1-3mm.
In one embodiment, first silencing cavity includes helmholtz resonance chamber.
In one embodiment, the volume range of first silencing cavity is 3*105-5*105mm3。
In one embodiment, the length of first voice entry is 2-10mm, the width of first voice entry
Degree is 2-6mm.
In one embodiment, the second silencing cavity, the noise reduction are formed between the outer wall and the dynamical system
The second sound entrance for being connected to second silencing cavity and the air inlet is formed between part and the dynamical system.
In one embodiment, the shell includes bottom plate, and the outer wall is upwardly extended from the bottom plate, the pedestal
It further include being arranged on the bottom plate and the sound baffle opposite with the second sound entrance.
In one embodiment, the shell includes bottom plate, and the outer wall is upwardly extended from the bottom plate, the pedestal
It further include being arranged on the bottom plate and the sound baffle opposite with first voice entry.
In one embodiment, the sound baffle includes arcwall face that is opposite with the bottom plate and raising upward.
In one embodiment, the dynamical system includes impeller housing, impeller, motor and diffuser, the impeller
Shell is erected in the shell, and the impeller housing is formed with the air inlet being connected to the air inlet, the impeller setting
In the impeller housing, for the motor for driving the impeller, the diffuser is set to the air-flow that the impeller generates
Downstream, the diffuser connect with the impeller housing.
In one embodiment, the motor housing for fixing the motor, the motor are formed with outside the motor
And the motor housing is set between the diffuser and the impeller, the motor housing is connect with the impeller housing.
The bladeless fan of embodiment of the present invention includes pedestal described in any of the above-described embodiment.
In one embodiment, the bladeless fan include fan head, the fan head be formed with air duct be connected to the wind
The nozzle in road, the fan head is connected to the pedestal to be sent into the air duct with the air-flow for generating the dynamical system, described
Sealing element is used to seal the gap between the pedestal and the fan head.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partially will be from following
Become obvious in description, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the stereoscopic schematic diagram of the pedestal of embodiment of the present invention.
Fig. 2 is the diagrammatic cross-section of the pedestal of embodiment of the present invention.
Fig. 3 is the enlarged diagram of II part of pedestal of Fig. 2.
Fig. 4 is the exploded perspective schematic diagram of the pedestal of embodiment of the present invention.
Fig. 5 is the stereoscopic schematic diagram of the acoustic element of the pedestal of embodiment of the present invention.
Fig. 6 is the diagrammatic cross-section of the acoustic element of the pedestal of embodiment of the present invention.
Fig. 7 is the stereoscopic schematic diagram of the sound baffle of the pedestal of embodiment of the present invention.
Fig. 8 is the stereoscopic schematic diagram of the bottom plate of the pedestal of embodiment of the present invention.
Fig. 9 is the stereoscopic schematic diagram 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；
Shell 10, bottom plate 11, outer wall 12, matching hole 11a, air inlet 121, air inlet 122, partition 13, via hole 131,
Two fixinig plates 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 22, the first mounting 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 head 30, nozzle 31；
Sealing element 40；
Connecting plate 50, the first fixinig plate 51；
Extension spring 60.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected.It can
To be mechanical connection, it is also possible to be electrically connected.It can be directly connected, can also can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside two elements.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
Also referring to FIG. 1 to 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.
Shell 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, which is used to suck air by air inlet 121, establishes air-flow.Acoustic element 22 is formed with
First silencing cavity 221 and the first silencing cavity 221 of connection and the first voice entry between dynamical system 21 and air inlet 121
222。
The pedestal 20 of embodiment of the present invention can be applied 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 the first silencing cavity 221 of connection and the first voice entry between dynamical system 21 and air inlet 121
222, in this way dynamical system 21 work when, dynamical system 21 by air by air inlet 121 suck outer wall 12 in and generate make an uproar
Sound can be introduced in the first silencing cavity 221 by the first voice entry 222 and be reflected and absorbed by the first silencing cavity 221 and made an uproar with eliminating
Sound, meanwhile, the noise that dynamical system 21 issues when working can shift to an earlier date before spreading to air inlet 121 by the first voice entry
222 introduce in the first silencing cavity 221 and are reflected and absorbed by the first silencing cavity 221, in this way, what dynamical system 21 was formed when working
Noise is effectively reduced.
In the present example, the duct that the first voice entry 222 is formed is smaller, 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 be absorbed in the first silencing cavity 221, and as the first silencing cavity 221 can incite somebody to action
Sound can be converted to thermal 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 generated 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.
In this way, cricoid outer wall 12 makes the bladeless fan 100 with shell 10 more beautiful, and it is conducive to air with more
The entrance of uniform mode, while incoming air area is larger and air inlet can guarantee without dead angle, acoustic element 22 and the coaxial arrangement of outer wall 12
The noise generated by dynamical system 21 more can be introduced fully in the first silencing cavity 221 by the first voice entry 222 and by the
The reflection of one silencing cavity 221 and absorption, while the mode being coaxially disposed makes the structure of pedestal 20 relatively stable, conducive to pedestal 20
Installation and placement.
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
12 circumferencial direction distribution.
In this way, the air inlet area of air inlet 121 is larger and air inlet is more uniform.
In one embodiment, air inlet 121 along outer wall 12 circumferencial direction be in multiple array arrangements, adjacent two
Array spacings setting.
In this way, can not only guarantee that air inlet 121 had biggish air inlet area, but also it can guarantee the intensity of outer wall 12, from
And guarantee the structural stability of shell 10, while the mode of multiple array spacings arrangement can reduce air inlet to a certain extent
Interact between air-flow and between air-flow and air inlet 122 when 121 air inlet and the noise that generates.
In one embodiment, air inlet 122 is rounded, and the diameter of air inlet 122 is 1-3mm.
In this way, air inlet 122 is of moderate size, while guaranteeing that air inlet 121 has sufficient air inlet area, help
The noise generated when reducing air inlet 121 and entering the wind.
In one example, the diameter of air inlet 122 is 2mm.In this way, air inlet 122 is of moderate size, and air inlet
122 to open up difficulty lower.
In one embodiment, the distance between two neighboring air inlet 122 is 1-3mm.
In this way, the distance between adjacent air inlet 122 is moderate, it can either guarantee the incoming air area of air inlet 121 in this way, together
When can avoid making the phase between air-flow and between air-flow and air inlet 122 since the distance between air inlet 122 is excessively close again
Interreaction force is excessive and generates biggish noise.
In one example, the distance between air inlet 122 is 2mm.In this way, the distance between air inlet 122 is moderate.
In one embodiment, the first silencing cavity 221 includes helmholtz resonance chamber (not shown go out).
In this way, noise can form resonance in the first silencing cavity 221, the erasure effect of such first silencing cavity 221 is more preferably.
In one embodiment, the volume range of the first silencing cavity 221 is 3*105-5*105mm3。
In this way, the volume size of the first silencing cavity 221 is moderate, and to the eradicating efficacy of the noise of certain frequency range compared with
It is good, such as in the frequency of 600-5000Hz or so.
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, the length h of the first voice entry 222 is 2-10mm.
In this way, the moderate length of the first voice entry 222, the duct that the first voice entry 222 is formed is smaller, it is ensured that the
The obturation effect of one silencing cavity 221, to guarantee the erasure effect of the first silencing cavity 221.
In some instances, the 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.
In this way, the width of the first voice entry 222 is moderate, the duct that the first voice entry 222 is formed is smaller, it is ensured that the
The obturation effect of one silencing cavity 221, to guarantee 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, the length h of the first voice entry 222 is
6mm, the width d of the first voice entry 222 are 4mm.
In one example, the shell of dynamical system 21 offers air inlet 214, and dynamical system 21 passes through air inlet 214
It directing the air into generate air-flow in dynamical system 21, the first silencing cavity 221 and the first voice entry 222 are annular in shape, and first
Silencing cavity 221 and the first voice entry 222 are coaxial, and the first voice entry 222 is relative to the first silencing cavity 221 close to air inlet
214.In this way, the first voice entry 222 is arranged close to air inlet 214, it is conducive to the importing of noise in this way, and cricoid sound enters
The area coverage of mouth is larger, and conducive to the abundant importing of noise, while cricoid voice entry is similar with noise reduction cavity configuration, and noise can
It is entered sufficiently by voice entry to be eliminated in silencing cavity, the volume of silencing cavity can be fully utilized.
In one embodiment, the second silencing cavity 223 is formed between outer wall 12 and dynamical system 21.Acoustic element 22 with
The second sound entrance 224 of the second silencing cavity 223 of connection and air inlet 121 is formed between dynamical system 21.
In this way, the second silencing cavity 223 and the first silencing cavity 221 may make up two-stage silencing cavity, in this way in 21 work of dynamical system
When making, noise can also be introduced in the second silencing cavity 223 by second sound entrance 224 and be reflected and absorbed by the second silencing cavity 223,
To further reduced noise when dynamical system 21 works.
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
It opens, the gap that second sound entrance 224 is 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
It directing the air into generate air-flow in dynamical system 21, the second silencing cavity 223 and second sound entrance 224 are annular in shape, and second
Silencing cavity 223 and second sound entrance 224 are coaxial, and second sound entrance 224 is relative to the second silencing cavity 223 close to air inlet
214.In this way, second sound entrance 224 is arranged close to air inlet 214, it is conducive to the importing of noise in this way, and cricoid sound enters
The area coverage of mouth is larger, and conducive to the abundant importing of noise, while cricoid voice entry is similar with noise reduction cavity configuration, and noise can
It is entered sufficiently by voice entry to be eliminated in silencing cavity, 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 go out).First silencing cavity 221 and the second silencing cavity 223 constitute two-stage helmholtz resonance chamber.In this way, noise can
The formation resonance in the first silencing cavity 221 and the second silencing cavity 223, such first silencing cavity 221 and the second silencing cavity 223 disappear
Sound better effect.
In one embodiment, shell 10 includes bottom plate 11.Outer wall 12 is upwardly extended from bottom plate 11.Pedestal 20 further includes
Sound baffle 225 on bottom plate 11 and opposite with second sound entrance 224 is set.
In this way, the noise that dynamical system 21 generates when working can be reflected into the second silencing cavity 223 by sound baffle 225
It is interior, to be eliminated by the second silencing cavity 223, the erasure effect of the second silencing cavity 223 is enhanced in this way.
In other embodiments, shell includes bottom plate.Outer wall is upwardly extended from bottom plate.Pedestal further includes being arranged on bottom plate
And the sound baffle opposite with the first voice entry.In this way, the noise generated when power system operational can be by sound reflection
Plate is reflected into the first silencing cavity, to be eliminated by the first silencing cavity, enhances the erasure effect of the first silencing cavity in this way.
In one example, sound baffle 225 is made of the biggish material of hardness, such as can be by makrolon material structure
At.The density of sound baffle 225 in this way is larger, and elasticity modulus 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 inlet
Mouth 214 directs the air into dynamical system 21 to generate air-flow, and the first voice entry 222 is close to second sound entrance 224
Air inlet 214 is arranged, and sound baffle 225 and the first voice entry 222 and second sound entrance 224 are relatively.In this way, being conducive to make an uproar
Sound sufficiently imports in corresponding silencing cavity, meanwhile, the noise that sound baffle 225 generates when dynamical system 21 can work reflects
To two silencing cavities, to enhance the erasure effect of silencing cavity.
In one embodiment, sound baffle 225 includes arcwall face 225a that is opposite with bottom plate 11 and raising upward.
In this way, the reflective surface area of sound baffle 225 is larger, so as to reflect more sound into corresponding noise reduction
Intracavitary, 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
Hold 225b, be formed on the bottom surface of bottom plate 11 matching hole 11a, fixing end 225b and matching hole 11a cooperate and by sound baffle
225 are mounted on the bottom surface of bottom plate 11.In this way, the position of sound baffle 225 is relatively fixed, it is not easy to be influenced and sent out by external force
It gives birth to positional shift and leads to the using effect for influencing sound baffle 225.
In one example, the number of fixing end 225b is 4, and 4 fixing ends constitute four angles of quadrangle, bottom plate 11
Bottom surface on be formed with 4 matching holes 11a, each fixing end 225b and corresponding matching hole 11a and cooperate and by sound baffle
225 are mounted on the bottom surface of bottom plate 11.In this way, the position of sound baffle 225 is more firm.
In embodiments of the present invention, shell 10 further includes the partition 13 to extend internally from outer wall 12.Partition 13 is formed with
Via hole 131, via hole 131 and outer wall 12 are coaxially disposed.Acoustic element 22 is mounted on the downside of partition 13 and separates with dynamical system 21.
In this way, the position of acoustic element 22 is relatively stable.Gap between acoustic element 22 and the shell of dynamical system 21 forms second sound
Entrance 224.
Referring to Fig. 5, in one example, pedestal 20 includes fastener (not shown go out), is opened on the shell of acoustic element 22
It equipped with the first mounting hole 22a, is offered on partition 13 second mounting hole (not shown go out), fastener wears the second mounting hole and the
One mounting hole 22a and acoustic element 22 is mounted on the lower surface of partition 13.In this way, the position of acoustic element 22 is more firm.
It should be pointed out that " lower surface " refers to the location status of pedestal 20 in normal conditions of use, such as such as Fig. 1
It is shown.
In one embodiment, dynamical system 21 includes impeller housing 211, impeller 212 and motor 213.Impeller housing
211 are erected in shell 10.Impeller housing 211 is formed with the air inlet 214 being connected to air inlet 121.Impeller 212 is arranged in leaf
In hub cap 211.Motor 213 is for driving impeller 212.
In this way, impeller housing 211 has the function of supporting and protect to dynamical system 21, while leaf is driven in motor 213
When 212 work of wheel, can directly it be entered in dynamical system 21 by air inlet 214 to generate high pressure gas into the air in pedestal 20
Stream.
Specifically, in embodiments of the present invention, impeller 212 is arranged in impeller housing 211.Motor 213 is 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 when 213 work.
When impeller 212 rotates, negative pressure can produce around impeller 212, it is empty so as to suck air from air inlet 214
Gas can form high pressure draught after the pressurization of impeller 212.High pressure draught can be discharged by the air outlet 215b of dynamical system 21.
In one embodiment, dynamical system 21 further includes diffuser 215.Diffuser 215 is set to the generation of impeller 212
Air-flow downstream.Diffuser 215 is connect with impeller housing 211.
In this way, diffuser 215 can be pressurized high pressure draught caused by impeller 212, slow down and racemization, guidance is high
It calms the anger and flows to the movement of the direction air outlet 215b.
It is appreciated that diffuser 215 includes multiple fin 215a, the height that multiple fin 215a can generate impeller 212
Pressure gas stream is integrated, and may be implemented to eliminate the effect of whirlwind, so that the gas being discharged from the air outlet 215b of diffuser 215
It flows softer.
In one embodiment, the motor housing 216 for fixing motor 213, motor housing are formed with outside motor 213
216 are formed in outside motor 213 and for fixing motor 213.Motor housing 216 and motor 213 are set to diffuser 215 and impeller
Between 212, motor housing 216 is connect with impeller housing 211.
In this way, motor housing 216 can shake during the work time to avoid motor 213.
Specifically, be formed with gas passage 216a between motor housing 216 and impeller housing 211, gas passage 216a with
Diffuser 215 is connected to.Generated air-flow flows to diffuser 215 after gas passage 216a when the rotation of impeller 212, by expanding
It is outer to enter in rated parts, such as fan head that diffuser 215 is flowed to after depressor 215.
Incorporated by reference to Fig. 9, the bladeless fan 100 of embodiment of the present invention includes 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, is such as schemed
Shown in 10, curve a is sound pressure level curve when bladeless fan 100 omits acoustic element 22, and curve b is that bladeless fan 100 is provided with
Sound pressure level curve when acoustic element 22.Wherein, ordinate SPL indicates 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 shell 10, no leaf wind
The sound pressure level and frequency of the noise of fan 100 decline.
In one embodiment, bladeless fan 100 includes fan head 30.Fan head 30 is formed with air duct (not shown go out) and even
The nozzle 31 of ventilating duct.Fan head 30 is connected to pedestal 20 to be sent into air duct with the air-flow for generating dynamical system.Further, it fans
Foam is provided in first 30 air duct.Generated noise in air duct can be absorbed in foam as a result, so as to reduce no leaf wind
The noise of fan 100.
The part that fan head 30 upwardly extends is curvilinear, so that air duct is curvilinear, it is possible thereby to when lowering air flowing
The noise of generation.
Junction of the air-flow between pedestal 20 and fan head 30 leaks in order to prevent, is equipped between pedestal 20 and fan head 30 close
Sealing 40, sealing element 40 are, for example, sheet rubber.Sealing element 40 is for sealing base 20 and fans the gap between head 30.
In one example, between shore A40~60, elasticity is moderate to stretch the hardness of sealing element 40.
Incorporated by reference to Fig. 4, in one embodiment, bladeless fan 100 includes connecting plate 50.Connecting plate 50 is arranged in pedestal
Between 20 and fan head 20, connecting plate 50 is for connecting pedestal 20 and fan head 30.
It is fixedly installed the first fixinig plate 51 on connecting plate 50, the second fixinig plate 132 is fixedly installed on partition 13, the
Two fixinig plates 132 and the first fixinig plate 51 are respectively positioned in shell 10.More extension springs 60 stretch the first fixinig plates 132 of connection and
Dynamical system 21, and stretch the second fixinig plate 132 of connection and dynamical system 21.
Extension spring 60 hangs up dynamical system 21, and the vibration that dynamical system 21 generates will not be transmitted directly
Onto shell 10, so as to reduce the noise of the generation of pedestal 20.
More 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 fixinig plate 51 and dynamical system 21.Preferably, first group of three extension springs 60 are along dynamical system 21
Circumferencial direction is uniformly arranged, 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 fixinig plate 132 and dynamical system 21.Preferably, second group
Three extension springs 60 are uniformly arranged along the circumferencial direction of dynamical system 21, 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, the stiffness factor of extension spring 60 is 15-25mm in 2-4N/mm, the range of raw footage.Example
Such as, the stiffness factor of extension spring 60 is 3N/mm, and the range of raw footage is 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
It being sucked by air inlet 121 and air inlet 214 by impeller 212, impeller 212 forms high pressure draught after air is accelerated pressurization,
High pressure draught successively enters after gas passage 216a and diffuser 215 in the air duct of fan head 30, finally sprays from nozzle 31,
To which the high pressure draught that nozzle 31 sprays can roll up the air around inhaling, so that wind is formed, to be embodied as user's cooling
Effect.
In addition, the revolving speed of motor 213 gradually increases, out of service in bladeless fan 100 when bladeless fan 100 starts
When, the revolving speed of motor 213 gradually decreases, it is possible thereby to make bladeless fan 100 slowly starting and it is out of service, so as to drop
The vibration of low bladeless fan 100, to reduce the generation of noise.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
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 implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means embodiment or example is combined to describe specific
Feature, structure, material or feature are contained at least one embodiment or example of the invention.In the present specification, right
The schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
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 with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (14)
1. a kind of pedestal, it to be used for bladeless fan, which is characterized in that the pedestal includes:
Shell, the shell include outer wall, and the outer wall is formed with air inlet:
Dynamical system in the outer wall is set, establishes air-flow, the dynamical system for sucking air by the air inlet
The impeller housing of system offers air inlet, the dynamical system by the air inlet direct the air into the dynamical system with
Generate air-flow；With
Acoustic element in the outer wall is set, the acoustic element be formed with the first silencing cavity and connection first silencing cavity and
The first voice entry between the impeller housing and the air inlet；
The second silencing cavity, shape between the acoustic element and the impeller housing are formed between the outer wall and the impeller housing
At there is the second sound entrance for being connected to second silencing cavity and the air inlet, second silencing cavity is located at described first and disappears
The top of sound chamber is simultaneously separated with first silencing cavity, the second sound entrance be the acoustic element and the impeller housing it
Between the gap that is formed.
2. pedestal as described in claim 1, which is characterized in that the outer wall is annular in shape, and the acoustic element is annular in shape, and with institute
Wall coaxial is stated to be arranged between institute's air inlet and the dynamical system.
3. pedestal as claimed in claim 2, which is characterized in that the air inlet is formed with the air inlet being arranged in array, institute
The circumferencial direction that air inlet is stated along the outer wall is distributed.
4. pedestal as claimed in claim 2, which is characterized in that the air inlet is in multiple battle arrays along the circumferencial direction of the outer wall
Column arrangement, the array spacings setting of adjacent two.
5. pedestal as described in claim 1, which is characterized in that first silencing cavity includes helmholtz resonance chamber.
6. pedestal as claimed in claim 5, which is characterized in that the volume range of first silencing cavity is 3*105-5*
105mm3。
7. pedestal as described in claim 1, which is characterized in that the length of first voice entry is 2-10mm, described the
The width of one voice entry is 2-6mm.
8. pedestal as described in claim 1, which is characterized in that the shell includes bottom plate, the outer wall from the bottom plate to
Upper extension, the pedestal further include being arranged on the bottom plate and the sound baffle opposite with the second sound entrance.
9. pedestal as described in claim 1, which is characterized in that the shell includes bottom plate, the outer wall from the bottom plate to
Upper extension, the pedestal further include being arranged on the bottom plate and the sound baffle opposite with first voice entry.
10. pedestal as claimed in claim 8 or 9, which is characterized in that the sound baffle include it is opposite with the bottom plate and
The arcwall face to raise upward.
11. pedestal as described in claim 1, which is characterized in that the dynamical system includes:
Impeller housing, the impeller housing are erected in the shell, and the impeller housing is formed with to be connected to the air inlet
Air inlet；
Impeller, the impeller are arranged in the impeller housing；With
Motor, the motor is for driving the impeller；
Diffuser, the diffuser are set to the downstream for the air-flow that the impeller generates, the diffuser and the impeller housing
Connection.
12. pedestal as claimed in claim 11, which is characterized in that be formed with the electricity for fixing the motor outside the motor
Machine shell, the motor and the motor housing are set between the diffuser and the impeller, the motor housing and institute
State impeller housing connection.
13. a kind of bladeless fan, which is characterized in that including the pedestal as described in claim 1-12 any one.
14. bladeless fan as claimed in claim 13, which is characterized in that the bladeless fan includes fan head, the fan capitiform
At the nozzle for having air duct with being connected to the air duct, the fan head is connected to the air-flow to generate the dynamical system with the pedestal
Be sent into the air duct, the bladeless fan includes sealing element, the sealing element for seal the pedestal and the 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 CN106438502A (en) | 2017-02-22 |
| CN106438502B true 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN106438502B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| GB2575560B (en) * | 2017-04-28 | 2021-09-15 | Gd Midea Env Appliances Mfg Co Ltd | 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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|---|---|---|---|---|
| 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 |
| 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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2016
- 2016-11-15 CN CN201611025589.6A patent/CN106438502B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438502A (en) | 2017-02-22 |
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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. |
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