CN209041189U - A kind of bladeless fan - Google Patents
A kind of bladeless fan Download PDFInfo
- Publication number
- CN209041189U CN209041189U CN201821771574.9U CN201821771574U CN209041189U CN 209041189 U CN209041189 U CN 209041189U CN 201821771574 U CN201821771574 U CN 201821771574U CN 209041189 U CN209041189 U CN 209041189U
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- CN
- China
- Prior art keywords
- ventilation duct
- nozzle
- centrifugal impeller
- bladeless fan
- ventilation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a kind of bladeless fan, includes pedestal and nozzle, and pedestal includes shell and ventilation duct, and ventilation duct is horizontally disposed, and is connected in the middle part of ventilation duct with shell upper end opening；It is provided with centrifugal impeller in shell, pressurization cover is arranged with outside centrifugal impeller, is provided with diversion fan blade above centrifugal impeller；Nozzle is articulated with ventilation duct both ends by articulated structure and is connected to ventilation duct, and nozzle can be rotated around the central axes of ventilation duct.In the utility model, centrifugal impeller can generate biggish air flow rate, and revolving speed is low, reduce the generation of noise；Without using pot motor, reduces noise and generate, reduce cost；Pressurization cover can improve wind pressure, solve the low drawback of centrifugal impeller wind pressure；Diversion fan blade is able to achieve diversion function, moreover it is possible to increase wind pressure；Nozzle can be rotated around the central axes of ventilation duct, and then adjust the angle of nozzle, realize the adjustable function of the air-out direction of bladeless fan.
Description
Technical field
The utility model relates to fan technology field more particularly to a kind of bladeless fans.
Background technique
101424279 B of patent CN discloses a kind of fan, includes nozzle and pedestal, and pedestal passes through spray for generating
The air-flow of mouth includes mixed flow impeller and the motor for driving mixed flow impeller in the pedestal.
Under identical revolving speed and diameter, compared with offline impeller, the air flow rate that mixed flow impeller generates is smaller, air-flow wind
Press larger, lead to that the air output of fan is less and outlet air is not enough releived, influence using.Thus in practical applications, in order to improve
The air output of fan and reduction wind pressure, producer realize often through motor speed is improved with the means of diffuser are added.
However, this means are by following shortcoming: (1) high revolving speed necessarily brings loud noise, and noise source includes mixed
The sound that impeller high-speed rotation issues and the sound that motor high-speed rotation issues are flowed, biggish noise can reduce user experience；(2)
High revolving speed can also increase accordingly the more demanding of motor, the acquisition cost and maintenance cost of motor, the production cost of producer
It is also correspondinglyd increase with the purchase cost of user；(3) it adds diffuser and necessarily improves production cost.
And in 101424279 B of patent CN, the angle of nozzle can not be adjusted, and lead to the air-out direction of fan
It can not adjust, user is inconvenient to use.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bladeless fan according to above-mentioned the deficiencies in the prior art,
Its low noise, air output are big, outlet air is releived, production cost is low and air-out direction is adjustable.
The technical solution of the utility model is as follows:
A kind of bladeless fan, includes pedestal and nozzle, and the pedestal includes shell and ventilation duct, the ventilation duct water
Flat setting, and be connected in the middle part of the ventilation duct with the shell upper end opening；
It is provided with centrifugal impeller in the shell, pressurization cover, the centrifugal impeller top are arranged with outside the centrifugal impeller
It is provided with diversion fan blade；
The nozzle is articulated with the ventilation duct both ends by articulated structure and is connected to the ventilation duct, and the nozzle can
It is rotated around the central axes of the ventilation duct.
Further, the pressurization, which is provide with, is equipped with upper opening and under shed；The upper opening edge is connect with inner walls；
The under shed is located at immediately below the centrifugal impeller, and the under shed edge is provided with the water conservancy diversion cambered surface of indent.
Further, if the diversion fan blade includes centre mount and the cured leaf that is dissipated outward centered on the centre mount
Piece；Described blade one end is connected to the centre mount, and the other end is connected to the inner walls.
Further, the centre mount bottom is provided with accommodating cavity, is equipped with motor in the accommodating cavity, under the motor
End is connect by transmission shaft with the centrifugal impeller.
Further, several air inlets are distributed in the housing sidewall, and the inner walls are provided with air filtering core；It is described
PTC heating unit is provided in shell upper end opening.
Further, the nozzle bottom is provided with the ventilation swing arm of two opposition setting, the ventilation swing arm inner wall setting
There is air inlet hole, the ventilation duct both ends are exhaust vent；The two ventilation swing arms are hingedly connected to described by the articulated structure
Ventilation duct both ends, the air inlet hole are connected to the exhaust vent.
Further, the articulated structure includes to be set to the annular nib of the air inlet bore edges and be set to described
The annular groove of outlet air bore edges；The annular nib is embedded in the annular groove, is respectively articulated with the two ventilation swing arms
In the ventilation duct both ends.
Further, the nozzle includes inner ring cover and outer ring cover, and the inner ring cover is installed in the outer ring cover, institute
It states and forms ventilating duct between inner ring cover outer wall and outer ring cover inner wall, form exhaust between the inner ring shroud rim and outer ring shroud rim
Mouthful；The ventilating duct is connected to exhaust outlet, and the exhaust outlet edge is provided with Coanda surface.
Further, anion generator is installed in the ventilating duct.
Compared with prior art, the utility model has the following beneficial effects: (1) centrifugal impeller can generate biggish gas
Flow is flowed, and revolving speed is low, reduces the generation of noise；(2) without using pot motor, the generation of noise is not only reduced,
Also reduce cost；(3) pressurization cover can change air current flow direction and cause to slow down, and this decelerating effect converts kinetic energy into pressure
Power energy, and then wind pressure is improved, solve the low drawback of centrifugal impeller wind pressure；(4) water conservancy diversion cambered surface makes in the air flow collection by under shed
Conveying avoids generating noise because of air turbulence；(5) diversion fan blade can be such that flow spiral rises and assemble, and can not only make air-flow
It is accurately sent out from air outlet, realizes diversion function, moreover it is possible to increased wind pressure, further solve the low drawback of centrifugal impeller wind pressure；
(6) nozzle can be rotated around the central axes of ventilation duct, and then adjust the angle of nozzle, realize that the air-out direction of bladeless fan is adjustable
Function, user is more convenient to use；(7) PTC heating unit can make bladeless fan realize that warm air function, air filtering core can make
Bladeless fan realizes air filtering function, and anion generator can increase anionic in air, so as to improve air
Quality.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is the sectional view (arrow is airflow direction) of the utility model embodiment.
Fig. 3 is that the cross-sectional view of another angle of the utility model embodiment pedestal (is not drawn into ventilation duct, PTC heating list in figure
Member and air filtering core).
Fig. 4 is the enlarged drawing on Fig. 2 at M.
Fig. 5 is the exploded view of the utility model embodiment.
Appended drawing reference
100- pedestal, 110- shell, 111- air inlet, 112- air filtering core, 113-PTC heating unit, 120- ventilation duct,
121- exhaust vent, 122- annular groove, 130- centrifugal impeller, 131- motor, 140- pressurization are covered, 141- upper opening, are opened under 142-
Mouthful, 143- water conservancy diversion cambered surface, 150- diversion fan blade, 151- centre mount, 152- blade, 153- accommodating cavity, 200- nozzle, 210- ventilation
Swing arm, 211- air inlet hole, 212- annular nib, 220- inner ring cover, 230- outer ring cover, 240- ventilating duct, 250- exhaust outlet, 260-
Anion generator.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
As shown in Figs. 1-5, a kind of bladeless fan, includes pedestal 100 and nozzle 200, and pedestal 100 includes shell 110
With ventilation duct 120, ventilation duct 120 is horizontally disposed, and 120 middle part of ventilation duct is connected to 110 upper end opening of shell.Nozzle 200 is logical
It crosses articulated structure to be articulated with 120 both ends of ventilation duct and be connected to ventilation duct 120, nozzle 200 can be revolved around the central axes of ventilation duct 120
Turn.
As Figure 2-3, it is provided with centrifugal impeller 130 in shell 110, pressurization cover 140 is arranged with outside centrifugal impeller 130,
Diversion fan blade 150 is provided with above centrifugal impeller 130.
Pressurization cover 140 is provided with upper opening 141 and under shed 142；141 edge of upper opening is connect with inner walls；Under open
Mouth 142 is located at immediately below centrifugal impeller 130, and 142 edge of under shed is provided with the water conservancy diversion cambered surface 143 of indent.
Several blades 152 that diversion fan blade 150 is included centre mount 151 and dissipated outward centered on centre mount 151；Leaf
152 one end of piece is connected to centre mount 151, and the other end is connected to inner walls.
151 bottom of centre mount is provided with accommodating cavity 153, and motor 131 is equipped in accommodating cavity 153, and 131 lower end of motor passes through
Transmission shaft is connect with centrifugal impeller 130.
Several air inlets 111 are distributed in 110 side wall of shell, and 110 inner wall of shell is provided with air filtering core 112；On shell 110
PTC heating unit 113 is provided in end opening.
As illustrated in figures 4-5,200 bottom of nozzle is provided with the ventilation swing arm 210 of two opposition setting, 210 inner wall of swing arm of divulging information
It is provided with air inlet hole 211,120 both ends of ventilation duct are exhaust vent 121；Two ventilation swing arms 210 are hingedly connected to by articulated structure
120 both ends of ventilation duct, air inlet hole 211 are connected to exhaust vent 121.
Articulated structure includes to be set to the annular nib 212 at 211 edge of air inlet hole and be set to 121 edge of exhaust vent
Annular groove 122；Annular nib 212 is embedded in annular groove 122, and two ventilation swing arms 210 is made to be hingedly connected to ventilation duct 120
Both ends.
Nozzle 200 includes inner ring cover 220 and outer ring cover 230, and inner ring cover 220 is installed in outer ring cover 230, inner ring cover
Ventilating duct 240 is formed between 230 inner wall of 220 outer walls and outer ring cover, 220 edge of inner ring cover and outer ring cover are formed between 230 edge
Exhaust outlet 250；Ventilating duct 240 is connected to exhaust outlet 250, and 250 edge of exhaust outlet is provided with Coanda surface.In ventilating duct 240
Anion generator 260 is installed.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (9)
1. a kind of bladeless fan includes pedestal and nozzle, it is characterised in that: the pedestal includes shell and ventilation duct, institute
It is horizontally disposed to state ventilation duct, and be connected in the middle part of the ventilation duct with the shell upper end opening；
It is provided with centrifugal impeller in the shell, pressurization cover, setting above the centrifugal impeller are arranged with outside the centrifugal impeller
There is diversion fan blade；
The nozzle is articulated with the ventilation duct both ends by articulated structure and is connected to the ventilation duct, and the nozzle can be around institute
State the central axes rotation of ventilation duct.
2. a kind of bladeless fan according to claim 1, it is characterised in that: it is described pressurization be provide be equipped with upper opening and under open
Mouthful；The upper opening edge is connect with inner walls；The under shed is located at immediately below the centrifugal impeller, the under shed side
Edge is provided with the water conservancy diversion cambered surface of indent.
3. a kind of bladeless fan according to claim 1, it is characterised in that: the diversion fan blade includes centre mount and with institute
State several blades dissipated outward centered on centre mount；Described blade one end is connected to the centre mount, and the other end is connected to institute
State inner walls.
4. a kind of bladeless fan according to claim 3, it is characterised in that: the centre mount bottom is provided with accommodating cavity, institute
It states and motor is installed in accommodating cavity, the motor lower end is connect by transmission shaft with the centrifugal impeller.
5. a kind of bladeless fan according to claim 1, it is characterised in that: several air inlets are distributed in the housing sidewall,
The inner walls are provided with air filtering core；PTC heating unit is provided in the shell upper end opening.
6. a kind of bladeless fan according to claim 1, it is characterised in that: the nozzle bottom is provided with the setting of two opposition
Ventilation swing arm, the ventilation swing arm inner wall are provided with air inlet hole, and the ventilation duct both ends are exhaust vent；The two ventilation swing arms are logical
It crosses the articulated structure and is hingedly connected to the ventilation duct both ends, the air inlet hole is connected to the exhaust vent.
7. a kind of bladeless fan according to claim 6, it is characterised in that: the articulated structure include be set to it is described into
The annular nib at air holes edge and the annular groove for being set to the outlet air bore edges；It is recessed that the annular nib is embedded in the annular
In slot, the two ventilation swing arms is made to be hingedly connected to the ventilation duct both ends.
8. a kind of bladeless fan according to claim 1, it is characterised in that: the nozzle includes inner ring cover and outer ring cover,
The inner ring cover is installed in the outer ring cover, and ventilating duct is formed between the inner ring cover outer wall and outer ring cover inner wall, described interior
Exhaust outlet is formed between ring shroud rim and outer ring shroud rim；The ventilating duct is connected to exhaust outlet, the exhaust outlet edge setting
There is Coanda surface.
9. a kind of bladeless fan according to claim 8, it is characterised in that: be equipped with anion in the ventilating duct
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771574.9U CN209041189U (en) | 2018-10-30 | 2018-10-30 | A kind of bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771574.9U CN209041189U (en) | 2018-10-30 | 2018-10-30 | A kind of bladeless fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041189U true CN209041189U (en) | 2019-06-28 |
Family
ID=67040180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821771574.9U Expired - Fee Related CN209041189U (en) | 2018-10-30 | 2018-10-30 | A kind of bladeless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088697A1 (en) * | 2019-11-08 | 2021-05-14 | 追觅科技(上海)有限公司 | Bladeless fan |
-
2018
- 2018-10-30 CN CN201821771574.9U patent/CN209041189U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088697A1 (en) * | 2019-11-08 | 2021-05-14 | 追觅科技(上海)有限公司 | Bladeless fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190628 Termination date: 20191030 |