CN206560585U - A kind of air-blast device of lung ventilator - Google Patents
A kind of air-blast device of lung ventilator Download PDFInfo
- Publication number
- CN206560585U CN206560585U CN201621123135.8U CN201621123135U CN206560585U CN 206560585 U CN206560585 U CN 206560585U CN 201621123135 U CN201621123135 U CN 201621123135U CN 206560585 U CN206560585 U CN 206560585U
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- air
- blade
- housing
- blast device
- lung ventilator
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Abstract
The utility model is related to medical breathing apparatus technical field, more particularly to a kind of air-blast device of lung ventilator, the second housing being fixedly connected including the first housing provided with air inlet, with the first housing, the first housing circularizes accommodating chamber with the second shell bodily form, and annular accommodating chamber is provided with air outlet；Impeller and sound panel are provided with annular accommodating chamber, impeller is installed on rotating shaft and driven by motor；First housing and sound panel the first air chamber of formation, impeller are located at the first air chamber, and sound panel is located at the second air chamber with second shell body the second air chamber of formation, air outlet；Gap is provided between the outer of sound panel and the first housing, during work, gas enters the first air chamber from air inlet, enters the second air chamber by gap in the presence of impeller, is finally flowed out from air outlet.Air chamber is divided into the first air chamber and the second air chamber by the air-blast device of the lung ventilator using sound panel, and the noise in two after isolation air chamber interferes less, it is easy to eliminate the noise.
Description
Technical field
The utility model is related to medical breathing apparatus technical field, more particularly to a kind of air-blast device of lung ventilator.
Background technology
Lung ventilator is as a device with artificial ventilation's function, and breathing declines caused by being commonly used to a variety of causes
Exhaust, in the treatment of disease such as sleep apnea low-ventilatory syndrome, it occupies highly important position in Modern Medical Field
Put.In noninvasive ventilator field, the attention with people to respiratory therapy is also original higher to the performance requirement of lung ventilator, its
Two indexs that middle user easily perceives are radiated noise and conducted noise respectively.Whether this two indexs directly influence user
It can fall asleep, when especially just use, whether can be ready to receive the judgement of noninvasive apnea treatment for a long time as user
Foundation.
The noise source of noninvasive ventilator is mainly air-blast device, and people generally can be disappeared using increasing in noninvasive ventilator
The method of sound cotton eliminates radiated noise, but effect is less obvious；And at the aspect that abates the noise, due to ununified mark
Alignment request, people often ignore conducted noise, but be easiest to during Consumer's Experience perceive be exactly conducted noise.Conducted noise
From air-blast device, enter mask by corrugated hose with gas, so as to be transmitted to ear-drum, sound changes with respiratory air flow
Become, it is suddenly big or suddenly small, hence it is evident that to perceive the noise of blowing machine and motor, directly affect user and enter sleep, may result in when serious
The mood that user contradicts to product.
Therefore, noninvasive ventilator is to obtain good muting function, it is necessary to pay the utmost attention to design a kind of drum of low noise
Wind apparatus.There is problem for of the prior art, need badly provide it is a kind of can and meanwhile eliminate air-blast device radiated noise and
The noise reduction technology of conducted noise is particularly important.
Utility model content
The purpose of this utility model is that the air blast for avoiding weak point of the prior art and providing a kind of lung ventilator is filled
Put, the air-blast device of the lung ventilator is simple in construction, radiated noise and conducted noise can be eliminated simultaneously.
The purpose of this utility model is achieved through the following technical solutions：
A kind of air-blast device of lung ventilator is provided, including the first housing provided with air inlet, is fixedly connected with the first housing
The second housing, first housing and the second shell bodily form circularize accommodating chamber, and the annular accommodating chamber is provided with air outlet；It is described
Impeller and sound panel are provided with annular accommodating chamber, the impeller is installed on rotating shaft and driven by motor；First housing
With sound panel the first air chamber of formation, the impeller is located at the first air chamber, the sound panel and second shell body the second air chamber of formation, institute
Air outlet is stated positioned at the second air chamber；Gap is provided between the outer of the sound panel and the first housing, during work, gas is from air intake
Mouth enters the first air chamber, enters the second air chamber by the gap in the presence of impeller, is finally flowed out from air outlet.
Wherein, the sound panel is provided with the boss being connected with the first housing at air outlet.
Wherein, the height of the boss is 3~8mm.
Further, the height of the boss is 5mm.
Wherein, the impeller includes integrally formed upper lid, lower cover, and the leaf being arranged between the upper lid and lower cover
Piece, the upper lid is provided centrally with air admission hole, and the lower cover includes lid and the axle sleeve perpendicular to the lid；The leaf
Piece includes the first blade being uniformly arranged around air admission hole, and corresponds with the first blade and close to the of lower cover outer rim
Two blades；Higher-pressure region gap is provided between the rear end of first blade and the front end of the second blade.
Wherein, the upper lid is gradually transitions peripheral edge in the way of radius of curvature becomes larger from the air admission hole.
Wherein, first blade and the second blade are circular arc vane.
Wherein, the height of the blade is tapered into from front end to rear end.
Wherein, the length of first blade is twice of the length of the second blade.
Wherein, the impeller is plastic ＆ rubber blade.
The beneficial effects of the utility model are：
Air chamber is divided into the first air chamber and the second air chamber by the air-blast device of the lung ventilator using sound panel, and the first air chamber is height
Nip, main to produce radiated noise and conducted noise, the second air chamber is low-pressure area, mainly produces conducted noise, two after isolation
Noise in individual air chamber interferes less, it is easy to eliminate the noise.The air-blast device is simple in construction, can eliminate simultaneously radiated noise and
Conducted noise, good muffling effect.
Brief description of the drawings
The utility model is described further using accompanying drawing, but the content in accompanying drawing is not constituted to of the present utility model
What is limited.
Fig. 1 is a kind of structural representation of the air-blast device of lung ventilator of the present utility model.
Fig. 2 is the structural representation of Fig. 1 decomposing state.
Fig. 3 is a kind of sectional view of the air-blast device of lung ventilator of the present utility model.
Fig. 4 is the structural representation that Fig. 1 removes the first housing.
Fig. 5 is the structural representation of the impeller covered on removing.
Fig. 6 is the structural representation of Fig. 5 another angle.
Include in Fig. 1 into Fig. 6：
1 --- the first housing；
11 --- air inlet；
2 --- the second housing；
21 --- air outlet；
3 --- impeller；
31 --- upper lid；
32 --- lower cover；
33 --- the first blade；
34 --- the second blade；
35 --- higher-pressure region gap；
36 --- air admission hole；
4 --- sound panel；
41 --- boss；
5 --- the first air chamber；
6 --- the second air chamber；
7 --- motor.
Embodiment
In order that the object, technical solution and advantage of utility model are more clearly understood, below in conjunction with drawings and Examples,
The utility model is further elaborated.
Embodiment
A kind of one of embodiment of air-blast device of lung ventilator of the present utility model, as shown in Figures 1 to 6, including sets
The first housing 1 for having air inlet 11, the second housing 2 being fixedly connected with the first housing 1, the first housing 1 are formed with the second housing 2
Annular accommodating chamber, annular accommodating chamber is provided with air outlet 21；Impeller 3 and sound panel 4 are provided with annular accommodating chamber, impeller 3 is installed
Driven in rotating shaft and by motor 7；First housing 1 is located at the first air chamber 5, sound insulation with the first air chamber 5 of formation of sound panel 4, impeller 3
The housing 2 of plate 4 and second the second air chamber 6 of formation, air outlet 21 is located at the second air chamber 6；The outer of sound panel 4 and the first housing 1 it
Between be provided with gap, during work, gas from air inlet 11 enter the first air chamber 5, enter second by gap in the presence of impeller 3
Air chamber 6, finally flows out from air outlet 21；Specifically, the diameter of air inlet 11 can be set to 16-18mm, the diameter of air outlet 21
14-16mm can be set to.Air chamber is divided into the first air chamber 5 and the second air chamber 6 by sound panel 4, and the first air chamber 5 is inlet plenum, is belonged to
Higher-pressure region, it is main to produce radiated noise and conducted noise；Second air chamber 6 includes air outlet 21, assembles for air and compresses
Outlet, belongs to low-pressure area, mainly produces conducted noise, and the noise in two after isolation air chamber interferes less, Ke Yiyou
Effect reduction radiated noise and conducted noise, it is easy to noise reduction.
Wherein, sound panel 4 is provided with the boss 41 being connected with the first housing 1 at air outlet 21.Boss 41 is connected out
Sound panel 4 and shell at air port 21, for isolating the first air chamber 5 and air outlet 21, it is to avoid gas is without the second air chamber 6
Directly enter air outlet 21 from the first air chamber 5, serve the effect being effectively isolated, help to eliminate dynamic conducted noise.
Wherein, the height of boss 41 is 3~8mm.Preferably, the height of boss 41 is 5mm.Height of general boss 41 etc.
Gap between the housing 1 of sound panel 4 and first, i.e. gas flow into the circular passage width of the second air chamber 6 from the first air chamber 5,
The gap is set to 5mm, is on the one hand conducive to gas to pass through, on the other hand contributes to isolate de-noising, after being test of many times
Optimal selection.
Wherein, impeller 3 includes integrally formed upper lid 31, lower cover 32, and is arranged between lid 31 and lower cover 32
Blade, upper lid 31 is provided centrally with air admission hole 36, and lower cover 32 includes lid and the axle sleeve perpendicular to lid；Blade includes enclosing
The first blade 33 being uniformly arranged around air admission hole 36, and correspond with the first blade 33 and close to the of the outer rim of lower cover 32
Two blades 34；Higher-pressure region gap 35 is provided between the rear end of first blade 33 and the front end of the second blade 34.Air-flow is from adjacent
Gap between one blade 33 enters, and a part is directly entered the gap between second adjacent blade 34；Another part then first leads to
The higher-pressure region gap 35 crossed between the first blade 33 and the second blade 34, then pass through the second blade 34.Air-flow is by effective point
Stream is conducive to swimmingly flowing, and reduces radiated noise, is especially that airflow through behind higher-pressure region gap 35 flowing into next region again,
Serve more effective erasure effect.
Wherein, upper lid 31 is gradually transitions peripheral edge in the way of radius of curvature becomes larger from air admission hole 36.Wherein,
The height of blade is tapered into from front end to rear end.The radius of curvature of upper lid 31 becomes larger, accordingly, then the first blade 33,
The height of second blade 34 is tapered into, and is largely entered equivalent to air-flow, then slow outflow impeller 3, reduces air-flow too precipitate labor
Raw conducted noise, serves sound deadening.
Wherein, the first blade 33 and the second blade 34 are circular arc vane.The blade of circular arc can make to play water conservancy diversion
Effect, reduce the irregular flow direction such as backflow, vortex of wind, and then the resistance and air pressure of reduction wind, enabling subtract
Few conducted noise, further functions as erasure effect.
Wherein, the length of the first blade 33 is twice of the length of the second blade 34.Throughput between first blade 33 compared with
It is big, it is necessary to longer water conservancy diversion time, it is by multiple that the length of the first blade 33 is arranged into twice of the length of the second blade 34
Experiment obtains optimum, and best erasure effect can be reached using the ratio.
Wherein, impeller 3 is plastic ＆ rubber blade.The material selection plastic cement material of impeller 3, can mitigate the quality of lung ventilator, and
And it is more safe and reliable.
The air-blast device is simple in construction, and radiated noise and conducted noise, good muffling effect can be eliminated simultaneously.
Finally it should be noted that above example is merely to illustrate the technical solution of the utility model rather than to this practicality
The limitation of novel protected scope, although being explained in detail with reference to preferred embodiment to the utility model, the common skill of this area
Art personnel should be appreciated that can modify or equivalent substitution to the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme.
Claims (10)
1. a kind of air-blast device of lung ventilator, it is characterised in that：Fixed including the first housing provided with air inlet, with the first housing
Second housing of connection, first housing circularizes accommodating chamber with the second shell bodily form, and the annular accommodating chamber is provided with air outlet；
Impeller and sound panel are provided with the annular accommodating chamber, the impeller is installed on rotating shaft and driven by motor；Described first
Housing and sound panel the first air chamber of formation, the impeller are located at the first air chamber, the sound panel and second shell body the second gas of formation
Room, the air outlet is located at the second air chamber；Gap, during work, gas are provided between the outer of the sound panel and the first housing
Enter the first air chamber from air inlet, the second air chamber is entered by the gap in the presence of impeller, finally flowed out from air outlet.
2. a kind of air-blast device of lung ventilator according to claim 1, it is characterised in that：The sound panel is close to air outlet
Place is provided with the boss being connected with the first housing.
3. a kind of air-blast device of lung ventilator according to claim 2, it is characterised in that：The height of the boss be 3~
8mm。
4. a kind of air-blast device of lung ventilator according to claim 3, it is characterised in that：The height of the boss is 5mm.
5. a kind of air-blast device of lung ventilator according to claim 1, it is characterised in that：The impeller includes being integrally formed
Upper lid, lower cover, and the blade being arranged between the upper lid and lower cover, the upper lid is provided centrally with air admission hole, institute
Stating lower cover includes lid and the axle sleeve perpendicular to the lid；The blade includes the first leaf being uniformly arranged around air admission hole
Piece, and corresponded and close to the second blade of lower cover outer rim with the first blade；The rear end of first blade and the second leaf
Higher-pressure region gap is provided between the front end of piece.
6. a kind of air-blast device of lung ventilator according to claim 5, it is characterised in that：It is described it is upper lid with radius of curvature by
The big mode of gradual change is gradually transitions peripheral edge from the air admission hole.
7. a kind of air-blast device of lung ventilator according to claim 6, it is characterised in that：First blade and the second leaf
Piece is circular arc vane.
8. a kind of air-blast device of lung ventilator according to claim 6, it is characterised in that：The height of the blade is from front end
Tapered into rear end.
9. a kind of air-blast device of lung ventilator according to claim 6, it is characterised in that：The length of first blade is
Twice of the length of second blade.
10. a kind of air-blast device of lung ventilator according to any one of claim 1 to 9, it is characterised in that：The impeller is
Plastic ＆ rubber blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621123135.8U CN206560585U (en) | 2016-10-14 | 2016-10-14 | A kind of air-blast device of lung ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621123135.8U CN206560585U (en) | 2016-10-14 | 2016-10-14 | A kind of air-blast device of lung ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206560585U true CN206560585U (en) | 2017-10-17 |
Family
ID=60028488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621123135.8U Withdrawn - After Issue CN206560585U (en) | 2016-10-14 | 2016-10-14 | A kind of air-blast device of lung ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206560585U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422017A (en) * | 2016-10-14 | 2017-02-22 | 广州南北电子科技有限公司 | Blower device for breathing machine |
| CN108980086A (en) * | 2018-09-13 | 2018-12-11 | 深圳融昕医疗科技有限公司 | Blower and ventilator with the blower |
| CN111110968A (en) * | 2019-12-27 | 2020-05-08 | 北京怡和嘉业医疗科技股份有限公司 | Breathing machine |
-
2016
- 2016-10-14 CN CN201621123135.8U patent/CN206560585U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422017A (en) * | 2016-10-14 | 2017-02-22 | 广州南北电子科技有限公司 | Blower device for breathing machine |
| CN106422017B (en) * | 2016-10-14 | 2019-03-05 | 广州和普乐健康科技有限公司 | A kind of blower device of ventilator |
| CN108980086A (en) * | 2018-09-13 | 2018-12-11 | 深圳融昕医疗科技有限公司 | Blower and ventilator with the blower |
| CN108980086B (en) * | 2018-09-13 | 2024-04-30 | 深圳融昕医疗科技有限公司 | Fan and breathing machine with same |
| CN111110968A (en) * | 2019-12-27 | 2020-05-08 | 北京怡和嘉业医疗科技股份有限公司 | Breathing machine |
| CN111110968B (en) * | 2019-12-27 | 2024-04-02 | 北京怡和嘉业医疗科技股份有限公司 | Breathing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171017 Effective date of abandoning: 20190305 |