CN206530550U - A kind of lung ventilator and its centrifugal blower fairing - Google Patents
A kind of lung ventilator and its centrifugal blower fairing Download PDFInfo
- Publication number
- CN206530550U CN206530550U CN201720145492.2U CN201720145492U CN206530550U CN 206530550 U CN206530550 U CN 206530550U CN 201720145492 U CN201720145492 U CN 201720145492U CN 206530550 U CN206530550 U CN 206530550U
- Authority
- CN
- China
- Prior art keywords
- retainer ring
- centrifugal blower
- mozzle
- fairing
- air outlet
- 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.)
- Withdrawn - After Issue
Links
- 210000004072 lung Anatomy 0.000 title claims abstract description 19
- 238000005119 centrifugation Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000008676 import Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of lung ventilator and its centrifugal blower fairing, including the first retainer ring, the second retainer ring and mozzle；The first fixation ring outer surface is connected with the side external surface of mozzle one；Another side external surface of mozzle is connected with the second fixation ring outer surface；First retainer ring is fixed on the inwall of lower spiral case；Second retainer ring is fixed on the low-pressure side screw position of lower spiral case air outlet；By the cooperation of the first retainer ring and the second retainer ring, mozzle is arranged on low-pressure side when centrifugal blower works at air outlet.Mozzle is arranged on low-pressure side when centrifugal blower works at air outlet by the centrifugal blower fairing that the utility model is provided by the cooperation of the first retainer ring and the second retainer ring.During blower fan work, mozzle imports fraction the inside of mozzle, exports to the low-pressure area of centrifugal fan air outlet, so as to alleviate the air turbulence at centrifugal fan air outlet, reduces noise.
Description
Technical field
The utility model is related to a kind of lung ventilator, more particularly to a kind of lung ventilator and its centrifugal blower fairing.
Background technology
The use environment of lung ventilator is typically night, and is placed on close to the position of bedside, therefore noise is lung ventilator
One important indicator, the noise of lung ventilator is lower, be more conducive to user night sleep.Lung ventilator is in the process of running
One of dominant noise source is aerodynamic noise, i.e. the air of the high speed and high pressure noise that duct flows are produced inside lung ventilator.Centrifugation
Blower fan, as unique power source in lung ventilator, is also the source place of aerodynamic noise.The operation principle of centrifugal blower is to pass through
The blade of rotation drives air rotation at a high speed, and the centrifugal force produced using rotation is thrown away the air in blade passage, then by height
Fast high pressure and with rotation status air-flow collect in spiral case, finally from air outlet send out.Due to the effect of inertia, air-out
Air-flow at mouthful can be inclined to the same side of direction of rotation, and opposite opposite side can then produce whirlpool or backflow, and this is centrifugation
The reason for fan outlet air turbulence.When the air channel of disorderly airflow passes lung ventilator, larger aerodynamic noise will be produced.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of the deficiencies in the prior art, the utility model provides a kind of lung ventilator and its centrifugal blower fairing, purport
Solving the noise problem of lung ventilator.
In order to reach above-mentioned technique effect, the utility model takes following technical scheme：
A kind of centrifugal blower fairing, wherein, including the first retainer ring, the second retainer ring and mozzle；Described first
Fixed ring outer surface is connected with the side external surface of mozzle one；Another side external surface of mozzle and second fixes ring outer surface company
Connect；First retainer ring is fixed on the inwall of lower spiral case；Second retainer ring is fixed on the low pressure of lower spiral case air outlet
On the screw position of side；By the cooperation of the first retainer ring and the second retainer ring, mozzle is arranged on air-out when centrifugal blower works
Low-pressure side at mouthful.
Described centrifugal blower fairing, wherein, the centrifugal blower fairing uses silica gel material, and hardness is
20°-50°。
Described centrifugal blower fairing, wherein, first retainer ring is shaped as annular.
Described centrifugal blower fairing, wherein, the low pressure of the shape of second retainer ring 2 and lower spiral case air outlet
Side screw non-colinear position, its thickness is 0.1-0.5mm.
Described centrifugal blower fairing, wherein, the mozzle is waits wall thickness hollow circular tube, and its wall thickness is 0.2-
1.5mm, external diameter is 1-20mm, and length is 10-100mm.
Described centrifugal blower fairing, wherein, the mozzle has angle of inclination, and it tilts down angle for 0-
90 °, outward-dipping angle is 0-90 °.
One kind breathing and, wherein, centrifugal blower fairing described above is provided with lung ventilator.
The beneficial effects of the utility model：A kind of centrifugal blower fairing that the utility model is provided, can be to centrifugation wind
High speed and high pressure air-flow in machine carries out rectification so that the overall noise reduction 2dB (A) of lung ventilator air flue (is marked according to YY0671-1
Standard carries out noise test)；The centrifugal blower fairing also has easily die sinking, easy to assembly, the high advantage of reliability.
Brief description of the drawings
Fig. 1 is the three-dimensional view for the centrifugal blower fairing that the utility model is related to；
Fig. 2 is the installation view for the centrifugal blower fairing that the utility model is related to；
Fig. 3 is the top view for the centrifugal blower fairing that the utility model is related to；
Fig. 4 is the front view for the centrifugal blower fairing that the utility model is related to；
Fig. 5 is the left view for the centrifugal blower fairing that the utility model is related to.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, clear and definite, referring to the drawings to this practicality
It is new to be described in further detail.
Refering to Fig. 1, the centrifugal blower fairing that the utility model is provided includes the first retainer ring 1, the and of the second retainer ring 2
Mozzle 3；The first fixation ring outer surface is connected with the side external surface of mozzle one；Another side external surface of mozzle and
Two fix ring outer surface connection.
Refering to Fig. 2, first retainer ring solid 1 is scheduled on the inwall 5 of lower spiral case；Second retainer ring 2 is fixed on down
On the low-pressure side screw position 6 of spiral case air outlet；By the cooperation of the first retainer ring and the second retainer ring, mozzle 3 is arranged on
Low-pressure side when centrifugal blower works at air outlet.
Refering to Fig. 2, lung ventilator is in normal work, and air enters from air inlet, the leaf that centrifugal blower passes through high speed rotation
Piece drives air rotation, and the centrifugal force produced using rotation is thrown away the air in blade passage, then by high speed and high pressure and band
The air-flow for having rotation status is collected in spiral case, is finally sent out from air outlet.Due to the effect of inertia, the air-flow meeting at air outlet
The same side of direction of rotation is inclined to, and opposite opposite side can then produce whirlpool or backflow, mozzle 3 can make centrifugal blower
Being partly into inside mozzle for the air-flow of interior high speed rotation, this fraction is forced along mozzle by the effect of tube wall
3 incline direction outflow, this fraction can just supplement the air-flow amesiality because of rotatory inertia rearward left by
Low-pressure area, can alleviate the air turbulence at centrifugal fan air outlet to a certain extent, so as to reduce noise.It is preferred that, water conservancy diversion
The gradient and length of pipe 3 can be designed according to the flow field of air in centrifugal blower.
Refering to Fig. 3, Fig. 4 and Fig. 5, first retainer ring 1 is annular, by the elastic force and spiral case of silica gel during assembling
The formation close-fitting fixed structure of wall 5.It is preferred that, the first fixation ring diameter is more smaller than the inwall of lower spiral case.Described second fixes
The low-pressure side screw non-colinear position of the shape of ring 2 and lower spiral case air outlet, its thickness is 0.1-0.5mm.
In summary, the centrifugal blower fairing that the utility model is provided passes through the first retainer ring and the second retainer ring
Coordinate, mozzle is arranged on low-pressure side when centrifugal blower works at air outlet.In blower fan normal work, mozzle is portion
Point air-flow imports the inside of mozzle, export to the air-flow amesiality because of rotatory inertia rearward left by low-pressure area,
The air turbulence at centrifugal fan air outlet can be alleviated to a certain extent, so as to reduce noise；The centrifugal blower rectification dress
Put with easily die sinking, easy to assembly, the high advantage of reliability.
The utility model is described in detail above, for those of ordinary skills, can be according to upper
State it is bright improved or converted, and all these modifications and variations should all belong to the protection of the utility model appended claims
Scope.
Claims (7)
1. a kind of centrifugal blower fairing, it is characterised in that：Including the first retainer ring, the second retainer ring and mozzle；It is described
First fixation ring outer surface is connected with the side external surface of mozzle one；Another side external surface of mozzle and the second retainer ring appearance
Face is connected；First retainer ring is fixed on the inwall of lower spiral case；Second retainer ring is fixed on lower spiral case air outlet
On low-pressure side screw position；By the cooperation of the first retainer ring and the second retainer ring, when mozzle is arranged on into centrifugal blower work
Low-pressure side at air outlet.
2. centrifugal blower fairing according to claim 1, it is characterised in that：The centrifugal blower fairing is used
Silica gel material, hardness range is 20 ° to 50 °.
3. centrifugal blower fairing according to claim 1, it is characterised in that：First retainer ring be shaped as circle
Annular.
4. centrifugal blower fairing according to claim 1, it is characterised in that：The shape of second retainer ring is with
The low-pressure side screw non-colinear position of spiral case air outlet, its thickness is 0.1-0.5mm.
5. centrifugal blower fairing according to claim 1, it is characterised in that：The mozzle is to wait the hollow circle of wall thickness
Pipe, its wall thickness is 0.2-1.5mm, and external diameter is 1-20mm, and length is 10-100mm.
6. centrifugal blower fairing according to claim 1, it is characterised in that：The mozzle has angle of inclination,
It is 0-90 ° that it, which tilts down angle, and outward-dipping angle is 0-90 °.
7. a kind of lung ventilator, it is characterised in that：Centrifugation wind as claimed in any one of claims 1 to 6 is provided with lung ventilator
Machine fairing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720145492.2U CN206530550U (en) | 2017-02-17 | 2017-02-17 | A kind of lung ventilator and its centrifugal blower fairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720145492.2U CN206530550U (en) | 2017-02-17 | 2017-02-17 | A kind of lung ventilator and its centrifugal blower fairing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530550U true CN206530550U (en) | 2017-09-29 |
Family
ID=59919517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720145492.2U Withdrawn - After Issue CN206530550U (en) | 2017-02-17 | 2017-02-17 | A kind of lung ventilator and its centrifugal blower fairing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457911A (en) * | 2017-02-17 | 2018-08-28 | 深圳市大雅医疗技术有限公司 | A kind of lung ventilator and its centrifugal blower fairing |
| CN110115545A (en) * | 2018-02-06 | 2019-08-13 | 美的集团股份有限公司 | Dirt cup and dust catcher |
-
2017
- 2017-02-17 CN CN201720145492.2U patent/CN206530550U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457911A (en) * | 2017-02-17 | 2018-08-28 | 深圳市大雅医疗技术有限公司 | A kind of lung ventilator and its centrifugal blower fairing |
| CN108457911B (en) * | 2017-02-17 | 2024-05-10 | 深圳市大雅医疗技术有限公司 | Breathing machine and centrifugal fan rectifying device thereof |
| CN110115545A (en) * | 2018-02-06 | 2019-08-13 | 美的集团股份有限公司 | Dirt cup and dust catcher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101749288B (en) | Airflow generating method and device | |
| CN204933079U (en) | A kind of can the air purifier of 360 degree of air inlet/outlets | |
| TWM416690U (en) | Blade-free fan with flow guide structure | |
| CN206530550U (en) | A kind of lung ventilator and its centrifugal blower fairing | |
| CN208619392U (en) | A kind of wing profiled orifice plate noise elimination flow-guiding structure air inlet chamber of fan | |
| CN206206263U (en) | A kind of impeller of air blower | |
| CN202545295U (en) | Bladeless cooling and heating fan | |
| CN208186742U (en) | A kind of swirling eddy mixing wind outlet unit | |
| CN201889301U (en) | Tornado air shower | |
| CN108457911A (en) | A kind of lung ventilator and its centrifugal blower fairing | |
| CN202430379U (en) | Cotton sucking flute pipe assembly | |
| CN205909373U (en) | Can enlarge hot blast blowpipe apparatus of air inlet scope | |
| CN202118011U (en) | Fan without blades | |
| CN208885564U (en) | A kind of efficient energy-saving fan | |
| CN207777265U (en) | A kind of centrifugation blade | |
| CN207892889U (en) | A kind of fresh air air cleaner ultra-silent energy-saving wind turbine | |
| CN204306255U (en) | Blower fan | |
| CN209569183U (en) | A kind of blower fan structure of noise reduction | |
| CN201844449U (en) | Tornado type kitchen ventilator | |
| CN203671852U (en) | Flow guiding ring, air flue structure and air conditioner cabinet-type indoor unit | |
| CN206637906U (en) | Cyclone cooling system | |
| CN206469421U (en) | A kind of self-priming outdoor exhaust outlet | |
| CN205876758U (en) | Airfoil fan multiple wing formula centrifugal fan | |
| CN103868186B (en) | A kind of Energy-Conservation Ventilation Means | |
| CN203771621U (en) | Energy-saving air exhauster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170929 Effective date of abandoning: 20240510 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170929 Effective date of abandoning: 20240510 |