CN106345025B - Amortization cover and breathing machine - Google Patents
Amortization cover and breathing machine Download PDFInfo
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- CN106345025B CN106345025B CN201611018778.0A CN201611018778A CN106345025B CN 106345025 B CN106345025 B CN 106345025B CN 201611018778 A CN201611018778 A CN 201611018778A CN 106345025 B CN106345025 B CN 106345025B
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- Prior art keywords
- air
- cover
- air flue
- air inlet
- wind turbine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- 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
- 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
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/42—Reducing noise
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to a silencing cover and a breathing machine. The silencing cover comprises a top cover, a flow guide piece and a bottom cover; the flow guide piece and the bottom cover are arranged inside the top cover; an air flue air inlet is arranged on the top cover; the guide part comprises a plurality of spiral guide vanes which are arranged around the center of the air inlet of the air passage at intervals; a plane spiral air passage is formed among the top cover, the bottom cover and the adjacent guide vanes; the bottom cover is fixedly connected with the top cover through a plurality of guide vanes, and an air passage air outlet is arranged between the bottom cover and the cover wall of the top cover; the ratio of the area of the air inlet of the air passage to the area of the air outlet of the air passage ranges from 1 to 3. The breathing machine comprises the silencing cover. The invention aims to provide a silencing cover and a breathing machine, and aims to solve the technical problem that the noise reduction effect of the existing silencing device is not obvious.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly, to a kind of silencer cover and lung ventilator.
Background technology
Wind turbine is widely used in medical field, especially lung ventilator.In current clinical medicine, lung ventilator is as an energy
The effective means of artificial substituting expiratory positive airway pressure function has been commonly used to respiratory failure caused by a variety of causes, during major operation
The Breathing Suppotion treatment of anesthesia respiration management, emergency resuscitation and household is medium, occupies in Modern Medical Field particularly significant
Position.Lung ventilator, which is one kind, can play prevention and treatment respiratory failure, reduce complication, save and extend patients ' lives
Vital Medical Devices.
Existing wind turbine includes shell, impeller and motor, and air inlet and air outlet are provided on shell, and impeller is located at shell
Inside, the output shaft of motor is drivingly connected impeller, so that gas is flowed along air inlet towards the direction of air outlet.However it is existing
Wind turbine in wheel rotation when, can and surrounding air generate vibrations, to produce noise, noise can bring tired to patient
Hot-tempered mood makes the normal rest of patient, sleep environment be difficult to be guaranteed, is unfavorable for the recovery of patient health.
The noise that existing silencing means can generate the air inlet of wind turbine plays the role of certain reduction, still, existing
Although the silencing means played the role of can play noise reduction, Noise Reduction unobvious, by existing silencing means noise reduction
Wind turbine, still influence whether rest and the physical recovery of patient.
Therefore, the application provides a kind of new silencer cover and lung ventilator regarding to the issue above.
Invention content
The purpose of the present invention is to provide a kind of silencer covers, unknown to solve Noise Reduction existing for existing silencing means
Aobvious technical problem.
The present invention also aims to provide a kind of lung ventilator, the silencing means further to solve existing lung ventilator is deposited
The unconspicuous technical problem of Noise Reduction.
Based on above-mentioned first purpose, silencer cover provided by the invention, including overhead guard, conducting element and bottom cover；
The conducting element and the bottom cover are arranged in the inside of the overhead guard；
Air flue air inlet is provided on the overhead guard；
The conducting element includes the guide vane of multiple helically threadiness, and multiple guide vanes are around the air flue air inlet
The middle heart septum setting of mouth；
Snail air flue is formed between the overhead guard, the bottom cover and the adjacent guide vane；
The bottom cover is fixedly connected by multiple guide vanes with the overhead guard, and the bottom cover and the overhead guard
Air flue gas outlet is provided between cover wall；
The ratio range of the area of the air flue air inlet and the area of the air flue gas outlet is 1-3.
Further, silencer cover of the present invention, multiple guide vanes are equal around the center of the air flue air inlet
Even setting.
Further, snail air flue of the present invention has 4-10 items.
Further, snail air flue of the present invention has 5-8 items.
Further, bottom cover of the present invention far from the guide vane be provided on one side multiple length directions with it is described
The vertical support column of bottom cover；
The support column is arranged in the inside of the overhead guard.
Further, overhead guard of the present invention is made of acoustic material.
Based on above-mentioned second purpose, lung ventilator provided by the invention, including wind turbine, the wind turbine includes impeller, the wind
It is provided with air inlet and fan outlet on the body of machine, above-mentioned silencer cover is set at the air inlet；
The rotation direction of the snail air flue is identical as the steering of the impeller of the wind turbine.
Further, silencer cover of the present invention and the body snapping.
Further, it is provided with sealing ring between silencer cover of the present invention and the body.
Further, the material of body of the present invention is silicon rubber；
The silicon rubber forms air-out passage at the fan outlet.
In conclusion when installation, the installation identical as the steering of the impeller of wind turbine of the rotation direction of snail air flue；When work,
When wheel rotation in wind turbine, impeller can generate vibrations with the air of surrounding, and to produce noise, noise can be brought to patient
Irritated mood makes the normal rest of patient, sleep environment be difficult to be guaranteed, is unfavorable for the recovery of patient health.Existing skill
The silencing means of art can play the role of the noise of wind turbine certain reduction, still, on the one hand, the volume of existing silencing means
Greatly, therefore the volume of wind turbine is increased, it is not readily portable；On the other hand, although existing silencing means can play it is certain
Noise Reduction, but Noise Reduction unobvious also affect the rest of patient by the wind turbine of existing silencing means noise reduction
With physical recovery.
When the blower fan work of the present invention, the wheel rotation of wind turbine forms negative pressure at air inlet, and air passes through noise reduction
The air flue air inlet of cover shunts, and enters snail air flue per a air stream after shunting, enters wind turbine from air flue gas outlet
Air inlet, and then enter in wind turbine, after the rotation of the identical rotation direction of impeller, it is discharged from fan outlet, i.e.,：Air passes through
Wind turbine is entered back into after silencer cover.On the one hand, air enters back into snail air flue by shunting, reduces in flowing between air
Mutual collision, reduce the generation of noise；On the other hand, silencer cover makes air according to rotation direction identical with the steering of impeller
Into air inlet, noise is generated with windage to reduce impeller；
On the other hand, silencer cover is small, length of flow of the air in snail air flue is reduced, to reduce
The loss of air energy.
The ratio range of the area of air flue air inlet and the area of air flue gas outlet is 1-3；On the one hand, air flue air inlet
Ratio between area and the area of air flue gas outlet cannot be too small, if too small, is easy to form " bottleneck at air flue air inlet
Effect ", thus noise is formed at air flue air inlet；On the other hand, the area of the area of air flue air inlet and air flue gas outlet
Between ratio cannot be too big, in order to which air-flow is discharged from snail air flue by air flue gas outlet, prevent air in air flue
It is accumulated at gas outlet, and the collision between air, between air and guide vane occurs, squeezes, and generate noise.To sum up, originally
The silencer cover that embodiment provides is compared and has better noise reduction for the prior art, solves disappearing for existing lung ventilator
Volume existing for mixer is big and the unconspicuous technical problem of Noise Reduction.
Lung ventilator provided in this embodiment, including wind turbine, the wind turbine include impeller, are provided on the body of the wind turbine
Above-mentioned silencer cover is arranged at the air inlet in air inlet and fan outlet；Further solve existing exhale
Volume existing for the silencing means of suction machine is big and the unconspicuous technical problem of Noise Reduction.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the dimensional structure diagram of the first state of silencer cover provided in an embodiment of the present invention；
Fig. 2 is that (crown portion is aobvious for the dimensional structure diagram of the second state of silencer cover provided in an embodiment of the present invention
Show)；
Fig. 3 is that (crown portion is aobvious for the dimensional structure diagram of the third state of silencer cover provided in an embodiment of the present invention
Show)；
Fig. 4 is the structural schematic diagram of the wind turbine of lung ventilator provided in an embodiment of the present invention.
Icon：1- overhead guards；2- bottom covers；31- air flues gas outlet；32- air flue air inlets；4- guide vanes；5- snails
Air flue；6- support columns；7- bodies；71- fan outlets.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
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
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the dimensional structure diagram of the first state of silencer cover provided in an embodiment of the present invention；Fig. 2 is that the present invention is real
The dimensional structure diagram (crown portion is shown) of second state of the silencer cover of example offer is provided；Fig. 3 carries for the embodiment of the present invention
The dimensional structure diagram of the third state of the silencer cover of confession (crown portion is shown)；Fig. 4 is provided in an embodiment of the present invention exhales
The structural schematic diagram of the wind turbine of suction machine.
Embodiment one
Shown in Fig. 1-Fig. 4, the present embodiment provides a kind of silencer covers, including overhead guard 1, conducting element and bottom cover 2；
The conducting element and the bottom cover 2 are arranged in the inside of the overhead guard 1；
Air flue air inlet 32 is provided on the overhead guard 1；
The conducting element includes multiple helically linear guide vanes 4, multiple guide vanes 4 around the air flue into
The middle heart septum of gas port 32 is arranged；
Snail air flue 5 is formed between the overhead guard 1, the bottom cover 2 and the adjacent guide vane 4；
The bottom cover 2 is fixedly connected by multiple guide vanes 4 with the overhead guard 1, and the bottom cover 2 and the top
It is provided with air flue gas outlet 31 between the cover wall of cover 1；
The ratio range of the area of the air flue air inlet 32 and the area of the air flue gas outlet 31 is 1-3.
Preferably, when installation, the rotation direction of snail air flue 5 is identical as the steering of the impeller of wind turbine；
When wheel rotation in wind turbine, impeller can generate vibrations with the air of surrounding, and to produce noise, noise can be given
Patient brings irritated mood, makes the normal rest of patient, sleep environment be difficult to be guaranteed, is unfavorable for the extensive of patient health
It is multiple.The silencing means of the prior art can play the role of the noise of wind turbine certain reduction, still, on the one hand, existing noise reduction
The volume of device is big, therefore increases the volume of wind turbine, not readily portable；On the other hand, although existing silencing means can
Certain Noise Reduction is played, but Noise Reduction unobvious are also affected by the wind turbine of existing silencing means noise reduction
The rest of patient and physical recovery.
When the blower fan work of the present embodiment, the wheel rotation of wind turbine forms negative pressure at air inlet, and air is by disappearing
The air flue air inlet 32 of sound cover shunts, and enters snail air flue 5 per a air stream after shunting, enters from air flue gas outlet 31
The air inlet of wind turbine, and then enter in wind turbine, after the rotation of the identical rotation direction of impeller, it is discharged from fan outlet 71, i.e.,：
Air enters back into wind turbine after silencer cover.On the one hand, air enters back into snail air flue 5 by shunting, reduces flowing
Mutual collision between middle air, reduces the generation of noise；On the other hand, silencer cover makes air according to the steering with impeller
Identical rotation direction enters air inlet, and noise is generated with windage to reduce impeller；
On the other hand, silencer cover is small, length of flow of the air in snail air flue 5 is reduced, to subtract
The small loss of air energy.
Preferably, the ratio range of the area of the air flue air inlet 32 and the area of the air flue gas outlet 31 is 1-3；
For example, the ratio of the area of air flue air inlet 32 and the area of air flue gas outlet 31 can be 1,1.5,1.7,2,2.5,3 etc..
On the one hand, the ratio between the area of air flue air inlet 32 and the area of air flue gas outlet 31 cannot be too small, too small
If, it is easy to form " bottleneck effect " at air flue air inlet 32, thus noise is formed at air flue air inlet 32；Another party
Face, ratio between the area and the area of air flue gas outlet 31 of air flue air inlet 32 cannot be too big, in order to which air-flow is from plane
Helical intake 5 is discharged by air flue gas outlet 31, prevents air from accumulate at air flue gas outlet 31, and is occurred between air, sky
Collision, extruding between gas and guide vane 4, and generate noise.
Table 1 lists under different motor speeds, using the prior art silencing means wind turbine apart from wind turbine outlet air
The noise test value of different location at mouth 71
Table 1
| Rotating speed (rev/min) | 10860 | 15060 | 18420 | 21240 |
| Noise (db) at 15cm | 64 | 70 | 72 | 77 |
| Noise (db) at 20cm | 59 | 67 | 69 | 73 |
| Noise (db) at 30cm | 56.3 | 63 | 67 | 70 |
| Noise (db) at 40cm | 56 | 61.4 | 65 | 68 |
Table 2 lists under different motor speeds, using the present embodiment silencer cover wind turbine apart from fan outlet
The noise test value of different location at 71
Table 2
Data show that silencer cover provided in this embodiment is compared and has better noise reduction, solution for the prior art
Volume existing for the silencing means of existing lung ventilator of having determined is big and the unconspicuous technical problem of Noise Reduction.
Preferably, multiple guide vanes 4 are uniformly arranged around the center of the air flue air inlet 32.It allows air to
It is uniformly shunted by silencer cover, further reduces the mutual collision between air in flowing, reduce the generation of noise.
Optionally, the snail air flue 5 has 4-10 items.For example, snail air flue 5 have 4,5,6,7,
8,9,10 etc..
If the item number of snail air flue 5 is too many, the width of every snail air flue 5 can be made too narrow, guide vane 4
The resistance of air-flow is increased, to power-consuming, energy consumption；If the item number of snail air flue 5 is very little, it can make the effect to air flow
Fruit unobvious, 5 numbers of snail air flue in this numberical range can make air-flow more smoothly into air entering flue air inlet 32, with
And the more smoothly flowing in snail air flue 5.
Preferably, the snail air flue 5 has 5-8 items, for example, snail air flue 5 has 5,6,7,8
Deng.To further prevent the width of every snail air flue 5 too narrow, guide vane 4 increases the resistance of air-flow, avoid so that
To the effect unobvious of air flow, to further make air-flow more smoothly into air entering flue air inlet 32, and it is more flat
The steady flowing in snail air flue 5.
Preferably, the bottom cover 2 is provided with multiple length directions and the bottom cover 2 on one side far from the guide vane 4
Vertical support column 6；
The support column 6 is arranged in the inside of the overhead guard 1.
Support column 6 plays support, buffer action so that forms airflow space between silencer cover and wind turbine, prevents the later stage will
When silencer cover and wind turbine assemble, bottom cover 2 is directly contacted with wind turbine, and so that the air in silencer cover is blocked and cannot flow out, shadow
Ring the normal work of wind turbine.
Preferably, the overhead guard is made of acoustic material.It further reduced when air flows through snail air flue 5 and generate
Noise；Optionally, acoustic material for example can be PC (makrolon), PP (polypropylene), PE (polyethylene), ABS (propylene
Nitrile-butadiene-styrene copolymer) etc..
Embodiment two
Embodiment two provides a kind of lung ventilator, and the lung ventilator includes the silencer cover described in embodiment one, embodiment one
The technical characteristic of disclosed silencer cover is also applied for the embodiment, and the technical characteristic of one published silencer cover of embodiment is no longer
Repeated description.The embodiment of the lung ventilator is described in further detail below in conjunction with the accompanying drawings.
To save length, the improvement feature of the embodiment equally embodies in Figs. 1-4, therefore, in conjunction with Fig. 1-Fig. 4 to this
The scheme of embodiment illustrates.
Shown in Fig. 1-Fig. 4, lung ventilator provided in this embodiment, including wind turbine, the wind turbine include impeller, the wind
It is provided with air inlet and fan outlet 71 on the body 7 of machine, above-mentioned silencer cover is set at the air inlet；
The rotation direction of the snail air flue 5 is identical as the steering of the impeller of the wind turbine.
That is, when the blower fan work of lung ventilator, air is shunted by the air flue air inlet 32 of silencer cover, after shunting
Enter snail air flue 5 per portion air stream, the air inlet of wind turbine is entered from air flue gas outlet 31, and then enter wind turbine
It is interior, after the rotation of the identical rotation direction of impeller, it is discharged from fan outlet 71, i.e.,：Air enters back into wind turbine after silencer cover, and one
Aspect, air enter back into snail air flue 5 by shunting, reduce the mutual collision between air in flowing, reduce and make an uproar
The generation of sound；On the other hand, enter after air flow so that air according to rotation direction identical with the steering of impeller enter wind turbine into
Air port generates noise, existing for the silencing means for further solving existing lung ventilator to reduce impeller and windage
Volume is big and the unconspicuous technical problem of Noise Reduction.
Preferably, the silencer cover and 7 snapping of the body.For example, far from snail air flue 5 on the bottom plate of silencer cover
Be provided with protrusion on one side, corresponding groove is provided on wind turbine；Alternatively, far from snail air flue 5 on the bottom plate of silencer cover
One side setting it is fluted, corresponding protrusion is provided on wind turbine.
It should be noted that only listing the specific implementation mode of two kinds of snappings herein, the structure of snapping can be realized not
It is limited to above two specific implementation, any structure that can realize above-mentioned function.
Preferably, sealing ring (not shown) is provided between the silencer cover and the body 7, to reinforce noise reduction
The sealing effect of cover and wind turbine prevents air to be discharged by the gap leakage between silencer cover and wind turbine, and generates vibration and make an uproar
Sound.
Preferably, the material of the body 7 is silicon rubber；
The silicon rubber forms air-out passage at the fan outlet 71.
The soft texture of silicon rubber can reduce the noise that wind turbine vibrations generate, and silicon rubber is at fan outlet 71
The air-out passage of an extension is formed, reinforces, to the buffering of air-flow, reducing the noise of air outlet.
Lung ventilator described in the present embodiment has the advantages that silencer cover described in embodiment one, and the advantage is in embodiment one
It is described in detail, is not repeated herein.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of silencer cover, which is characterized in that including overhead guard, conducting element and bottom cover；
The conducting element and the bottom cover are arranged in the inside of the overhead guard；
Air flue air inlet is provided on the overhead guard；
The conducting element includes the guide vane of multiple helically threadiness, and multiple guide vanes are around the air flue air inlet
Middle heart septum setting；
Snail air flue is formed between the overhead guard, the bottom cover and the adjacent guide vane；
The bottom cover is fixedly connected by multiple guide vanes with the overhead guard, and the cover wall of the bottom cover and the overhead guard
Between be provided with air flue gas outlet；
The ratio range of the area of the air flue air inlet and the area of the air flue gas outlet is 1-3.
2. silencer cover according to claim 1, which is characterized in that multiple guide vanes are around the air flue air inlet
Center is uniformly arranged.
3. silencer cover according to claim 1, which is characterized in that the snail air flue has 4-10 items.
4. silencer cover according to claim 3, which is characterized in that the snail air flue has 5-8 items.
5. silencer cover according to claim 1, which is characterized in that one side setting of the bottom cover far from the guide vane
The support column for having multiple length directions vertical with the bottom cover；
The support column is arranged in the inside of the overhead guard.
6. silencer cover according to claim 1, which is characterized in that the overhead guard is made of acoustic material.
7. a kind of lung ventilator, including wind turbine, the wind turbine includes impeller, be provided on the body of the wind turbine air inlet and
Fan outlet, which is characterized in that silencer cover as claimed in any one of claims 1 to 6 is set at the air inlet；
The rotation direction of the snail air flue is identical as the steering of the impeller of the wind turbine.
8. lung ventilator according to claim 7, which is characterized in that the silencer cover and the body snapping.
9. lung ventilator according to claim 8, which is characterized in that be provided with sealing between the silencer cover and the body
Circle.
10. lung ventilator according to claim 7, which is characterized in that the material of the body is silicon rubber；
The silicon rubber forms air-out passage at the fan outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611018778.0A CN106345025B (en) | 2016-11-18 | 2016-11-18 | Amortization cover and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611018778.0A CN106345025B (en) | 2016-11-18 | 2016-11-18 | Amortization cover and breathing machine |
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| Publication Number | Publication Date |
|---|---|
| CN106345025A CN106345025A (en) | 2017-01-25 |
| CN106345025B true CN106345025B (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611018778.0A Active CN106345025B (en) | 2016-11-18 | 2016-11-18 | Amortization cover and breathing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109806471A (en) * | 2017-11-22 | 2019-05-28 | 沈阳新松医疗科技股份有限公司 | A kind of DC fan for noninvasive ventilator |
| MX2020013097A (en) | 2018-06-04 | 2021-02-17 | Trudell Medical Int | Positive air pressure therapy device, kit and methods for the use and assembly thereof. |
| CN109224155A (en) * | 2018-10-17 | 2019-01-18 | 安徽海利医疗设备科技有限公司 | A kind of noise reduction stopper structure of electric breast pump |
| CN110975094A (en) * | 2019-12-30 | 2020-04-10 | 北京怡和嘉业医疗科技股份有限公司 | Noise reduction structure for ventilation therapy device and ventilation therapy device |
| CN111714746A (en) * | 2020-06-29 | 2020-09-29 | 北京奥臻医疗科技有限公司 | Oxygen mask |
| CN112190802A (en) * | 2020-10-16 | 2021-01-08 | 湖南万脉医疗科技有限公司 | Noise reduction cover of breathing machine and breathing machine with noise reduction cover |
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| JP3231679B2 (en) * | 1997-10-24 | 2001-11-26 | 松下精工株式会社 | Multi-wing blower |
| CN2665423Y (en) * | 2003-10-10 | 2004-12-22 | 方茂林 | Flow guiding low noise draught fan |
| US20060051204A1 (en) * | 2004-09-03 | 2006-03-09 | Lyons Leslie A | Lobed joint draft inducer blower |
| CN100587804C (en) * | 2006-05-19 | 2010-02-03 | 苏州凯迪泰医学科技有限公司 | Silencer and respirator therewith |
| CN104132003B (en) * | 2014-07-30 | 2016-08-17 | 邵阳万脉科技有限公司 | A kind of silencing means of positive airway pressure equipment |
| CN205349808U (en) * | 2016-02-29 | 2016-06-29 | 李锦标 | Silent fan |
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2016
- 2016-11-18 CN CN201611018778.0A patent/CN106345025B/en active Active
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