CN104132003A - Silencer of positive pressure ventilation equipment - Google Patents
Silencer of positive pressure ventilation equipment Download PDFInfo
- Publication number
- CN104132003A CN104132003A CN201410369459.9A CN201410369459A CN104132003A CN 104132003 A CN104132003 A CN 104132003A CN 201410369459 A CN201410369459 A CN 201410369459A CN 104132003 A CN104132003 A CN 104132003A
- Authority
- CN
- China
- Prior art keywords
- upper cover
- cavity
- silencer
- noise
- middle body
- 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.)
- Granted
Links
Classifications
-
- 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
- A61M16/0057—Pumps therefor
- A61M16/0066—Blowers or centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid 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
- 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
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- 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
-
- 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
- A61M2206/00—Characteristics of a physical parameter; associated device therefor
- A61M2206/10—Flow characteristics
- A61M2206/12—Flow characteristics the flow being spirally in a plane, e.g. against a plane side of a membrane filter element
-
- 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
- A61M2206/00—Characteristics of a physical parameter; associated device therefor
- A61M2206/10—Flow characteristics
- A61M2206/14—Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Percussion Or Vibration Massage (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a silencer of positive pressure ventilation equipment. The silencer of the positive pressure ventilation equipment comprises an upper cover, a middle body and a base, and the middle body is located between the upper cover and the base. The silencer of the positive pressure ventilation equipment is characterized in that the upper cover is provided with a spiral three-dimensional rotation air inlet body, and the spiral three-dimensional rotation air inlet body and the upper cover form a whole and are communicated with each other; the middle body is composed of an upper layer and a lower layer, the upper layer comprises a fan containing cavity, an air outlet buffer cavity and an air outlet, a centrifugal fan is placed in the fan containing cavity, and an air outlet of the centrifugal fan is communicated with the air outlet buffer cavity; the lower layer comprises an air inlet and an air cavity, a noise backflow prevention opening is formed in the air cavity and is in shape of a big-end-down horn, and an outlet of the noise backflow prevention opening is communicated with the fan containing cavity of the upper layer. The silencer is mainly applied to the positive pressure ventilation equipment.
Description
Technical field
The present invention relates to a kind of silencer, relate in particular to a kind of silencer of positive airway pressure equipment.
Background technique
Noise is excessive in use for common positive airway pressure equipment in the market, has a strong impact on patient and family's quality of human sleeping, though can alleviate the illnesss such as snoring, low ventilation, patient's mental attitude is reduced greatly, thereby affects work, study, quality of life.In addition,, in the long-term noisy environment in high-decibel, also can damage patient's hearing.More existing positive airway pressure equipment adopts motor to drive and produces source of the gas, and positive airway pressure equipment is generally used for the treatment of the respiratory disorders such as sleep apnea syndrome and COPD (CAO disease).The feature of this equipment is to rotate in cavity by centrifugal blower, cavity is equipped with suction port by centre bit, flabellum tangent direction is provided with air outlet, during machine operation, rotating speed is at thousands of extremely up to ten thousand revs/min, easily produce very strong noise, the general method abating the noise adopting has at present: damping, sound-absorbing, sound insulation.Damping---adopt the parcel motors such as sponge, rubber, avoid the sound of vibrations to reach equipment outside; Sound-absorbing---use sponge to be affixed on gas channel inwall and absorb noise; Sound insulation---use the larger material of density to make gas channel as aluminium sheet, iron plate etc., make sound by every reducing and spread out of in passage.The relevant device of some company, adopts rubber and plastic or the damping of sponge wrapping motor, forms air flue sound-absorbing, sound insulation, and the product of other companies is placed motor in aluminum box, and inwall is pasted sponge, profit sound insulation in this way, sound-absorbing.Yet these methods all Existential Space utilization ratio are not high, and noise can not well be isolated, the problem that air outlet noise does not deal with.
Above-mentioned several method is all undesirable, does not fundamentally solve noise problem.90% noise is all to be produced by flabellum and air friction and bottleneck effect, simple do sound insulating and absorbing and damping can not reach desirable effect, and can increase the volume and weight of equipment, also can increase airway resistance, if airway resistance is higher, the susceptibility that the sensor that will reduce system changes people's airway resistance, affects the normal work of equipment.
For these shortcomings, the present invention adopts unique soft air intake of double-deck layout design, rotary stereo, increase the design of the design of suction port noise-proofing refluxing opening and air outlet buffer cavity simultaneously, to reach good noise reduction, have that space availability ratio is high simultaneously, compact structure, be easy to produce, assemble the features such as simple.
Summary of the invention
The object of the present invention is to provide a kind of silencer of positive airway pressure equipment, reached the effect that abates the noise better.
For achieving the above object, technical solution of the present invention is: a kind of silencer of positive airway pressure equipment, comprise upper cover, middle body and base, and middle body is positioned between upper cover and base, it is characterized in that:
A. described upper cover 1 is provided with helical stereo rotating air intake body 2, and it and upper cover 1 are in aggregates and be interconnected;
B. described middle body 3 is by upper and lower two-layer composition, and upper strata comprises blower fan placed cavity 5, exhaust outlet buffer cavity 7, exhaust outlet 9, is placed with centrifugal blower 6 in blower fan placed cavity 5, and this centrifugal fan air outlet 8 is communicated with exhaust outlet buffer cavity 7; Lower floor comprises intake grill 10, wind chamber 11, in this wind chamber, has noise-proofing refluxing opening 12, and noise-proofing refluxing opening is lower large upper toy trumpet shape, and its outlet is communicated with upper strata blower fan placed cavity 5.
The invention has the beneficial effects as follows: owing to having adopted unique soft air intake of double-deck layout design, rotary stereo, increase the design of the design of suction port noise-proofing refluxing opening and air outlet buffer cavity simultaneously, reached good noise reduction, had that space availability ratio is high simultaneously, compact structure, be easy to produce, assemble the advantages such as simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the superstructure schematic diagram of body in the present invention.
Fig. 3 is the substructure schematic diagram of body in the present invention.
In figure: 1-upper cover, 2-helical stereo rotating air intake body, body in 3-, 4-base, 5-blower fan placed cavity, 6-centrifugal blower, 7-exhaust outlet buffer cavity, 8-fan outlet, 9-exhaust outlet, 10-intake grill, 11-wind chamber, 12-noise-proofing refluxing opening, 13-air inlet.
Embodiment
Below in conjunction with accompanying drawing, the present invention and embodiment thereof are described in further detail.
Referring to Fig. 1-3, the present invention includes a kind of silencer of positive airway pressure equipment, reached the effect that abates the noise better.
For achieving the above object, the present invention includes a kind of silencer of positive airway pressure equipment, comprise upper cover, middle body and base, middle body is positioned between upper cover and base, it is characterized in that:
A. described upper cover 1 is provided with helical stereo rotating air intake body 2, and it and upper cover 1 are in aggregates and be interconnected;
B. described middle body 3 is by upper and lower two-layer composition, and upper strata comprises blower fan placed cavity 5, exhaust outlet buffer cavity 7, exhaust outlet 9, is placed with centrifugal blower 6 in blower fan placed cavity 5, and this centrifugal fan air outlet 8 is communicated with exhaust outlet buffer cavity 7; Lower floor comprises intake grill 10, wind chamber 11, in this wind chamber, has noise-proofing refluxing opening 12, and noise-proofing refluxing opening is lower large upper toy trumpet shape, and its outlet is communicated with upper strata blower fan placed cavity 5.
Start centrifugal blower 6, the natural wind therefrom intake grill 10 of body lower floor enters in wind chamber 11, through noise-proofing refluxing opening 12, enter in the blower fan placed cavity 5 on body upper strata, arrive again the helical stereo rotating air intake body 2 of upper cover, after water conservancy diversion, enter the intake grill 13 of centrifugal blower 6, after being accelerated by centrifugal blower 6, enter exhaust outlet buffer cavity 7, finally from exhaust outlet 9, air-flow is derived, nasal cavity that again air-flow of derivation is connected to patient by conduit etc. is located, deadening due to airtight cavity, helical stereo rotating air intake, the sound absorption of the horn-like design of noise-proofing refluxing opening and cavity inner wall foam body makes better effects if of the present invention.
Described Zhong Ti lower floor is arranged in the back side on body upper strata, and the two differs 180 ° and is back to back structure (seeing Fig. 2,3), and upper cover, middle body, base are connected and form the present invention.
Claims (1)
1. a silencer for positive airway pressure equipment, comprises upper cover, middle body and base, and middle body is positioned between upper cover and base, it is characterized in that:
A. described upper cover (1) is provided with helical stereo rotating air intake body (2), and it and upper cover (1) are in aggregates and be interconnected;
B. described middle body (3) is by upper and lower two-layer composition, upper strata comprises blower fan placed cavity (5), exhaust outlet buffer cavity (7), exhaust outlet (9), in blower fan placed cavity (5), be placed with centrifugal blower (6), this centrifugal fan air outlet (8) is communicated with exhaust outlet buffer cavity (7); Lower floor comprises intake grill (10), wind chamber (11), has noise-proofing refluxing opening (12) in this wind chamber, and noise-proofing refluxing opening is lower large upper toy trumpet shape, and its outlet is communicated with upper strata blower fan placed cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369459.9A CN104132003B (en) | 2014-07-30 | 2014-07-30 | A kind of silencing means of positive airway pressure equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369459.9A CN104132003B (en) | 2014-07-30 | 2014-07-30 | A kind of silencing means of positive airway pressure equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104132003A true CN104132003A (en) | 2014-11-05 |
| CN104132003B CN104132003B (en) | 2016-08-17 |
Family
ID=51804805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410369459.9A Active CN104132003B (en) | 2014-07-30 | 2014-07-30 | A kind of silencing means of positive airway pressure equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104132003B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689443A (en) * | 2015-03-24 | 2015-06-10 | 湖南明康中锦医疗科技发展有限公司 | Noise-reduction air passage structure of respirator fan |
| CN104689441A (en) * | 2015-03-24 | 2015-06-10 | 湖南明康中锦医疗科技发展有限公司 | Noise reduction device of respirator fan |
| CN106139345A (en) * | 2016-07-28 | 2016-11-23 | 湖南明康中锦医疗科技发展有限公司 | A kind of turbine box and respirator |
| CN106345025A (en) * | 2016-11-18 | 2017-01-25 | 泰锐菲克（天津）医疗科技有限公司 | Amortization cover and breathing machine |
| CN106422012A (en) * | 2016-11-18 | 2017-02-22 | 泰锐菲克（天津）医疗科技有限公司 | Amortization cover and breathing machine |
| CN106730204A (en) * | 2016-12-30 | 2017-05-31 | 吉林省沃鸿医疗器械制造有限公司 | Portable respirator and its system |
| CN110711300A (en) * | 2019-09-09 | 2020-01-21 | 天津怡和嘉业医疗科技有限公司 | Noise reduction box and ventilation treatment equipment |
| CN112245739A (en) * | 2019-12-30 | 2021-01-22 | 北京怡和嘉业医疗科技股份有限公司 | Ventilation treatment equipment and air inlet structure thereof |
Citations (5)
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|---|---|---|---|---|
| CN1336989A (en) * | 1999-01-12 | 2002-02-20 | 株式会社日立制作所 | Ventilation apparatus mfg. method, and ventilation apparatus |
| US20080083333A1 (en) * | 2006-10-04 | 2008-04-10 | Anlet Co., Ltd. | Dust collector |
| CN103486078A (en) * | 2013-10-23 | 2014-01-01 | 株洲联诚集团有限责任公司 | Bidirectional diffusion centrifugal fan |
| CN204025176U (en) * | 2014-07-30 | 2014-12-17 | 邵阳万脉科技有限公司 | A kind of silencer of positive airway pressure equipment |
| CN204253443U (en) * | 2014-10-15 | 2015-04-08 | 长沙中粮机械有限公司 | For afflux spiral case and the centrifugal blower of centrifugal blower |
-
2014
- 2014-07-30 CN CN201410369459.9A patent/CN104132003B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336989A (en) * | 1999-01-12 | 2002-02-20 | 株式会社日立制作所 | Ventilation apparatus mfg. method, and ventilation apparatus |
| US20080083333A1 (en) * | 2006-10-04 | 2008-04-10 | Anlet Co., Ltd. | Dust collector |
| CN103486078A (en) * | 2013-10-23 | 2014-01-01 | 株洲联诚集团有限责任公司 | Bidirectional diffusion centrifugal fan |
| CN204025176U (en) * | 2014-07-30 | 2014-12-17 | 邵阳万脉科技有限公司 | A kind of silencer of positive airway pressure equipment |
| CN204253443U (en) * | 2014-10-15 | 2015-04-08 | 长沙中粮机械有限公司 | For afflux spiral case and the centrifugal blower of centrifugal blower |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689443A (en) * | 2015-03-24 | 2015-06-10 | 湖南明康中锦医疗科技发展有限公司 | Noise-reduction air passage structure of respirator fan |
| CN104689441A (en) * | 2015-03-24 | 2015-06-10 | 湖南明康中锦医疗科技发展有限公司 | Noise reduction device of respirator fan |
| CN104689443B (en) * | 2015-03-24 | 2016-11-02 | 湖南明康中锦医疗科技发展有限公司 | A kind of lung ventilator blower fan noise reduction air passage structure |
| CN106139345A (en) * | 2016-07-28 | 2016-11-23 | 湖南明康中锦医疗科技发展有限公司 | A kind of turbine box and respirator |
| CN106345025A (en) * | 2016-11-18 | 2017-01-25 | 泰锐菲克（天津）医疗科技有限公司 | Amortization cover and breathing machine |
| CN106422012A (en) * | 2016-11-18 | 2017-02-22 | 泰锐菲克（天津）医疗科技有限公司 | Amortization cover and breathing machine |
| CN106730204A (en) * | 2016-12-30 | 2017-05-31 | 吉林省沃鸿医疗器械制造有限公司 | Portable respirator and its system |
| CN106730204B (en) * | 2016-12-30 | 2023-09-26 | 吉林省沃鸿医疗器械制造有限公司 | Portable respirator and system thereof |
| CN110711300A (en) * | 2019-09-09 | 2020-01-21 | 天津怡和嘉业医疗科技有限公司 | Noise reduction box and ventilation treatment equipment |
| WO2021047486A1 (en) * | 2019-09-09 | 2021-03-18 | 北京怡和嘉业医疗科技股份有限公司 | Noise reduction box and ventilation therapeutic device |
| CN112245739A (en) * | 2019-12-30 | 2021-01-22 | 北京怡和嘉业医疗科技股份有限公司 | Ventilation treatment equipment and air inlet structure thereof |
| CN112245739B (en) * | 2019-12-30 | 2023-08-15 | 北京怡和嘉业医疗科技股份有限公司 | Aeration treatment equipment and air inlet structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104132003B (en) | 2016-08-17 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 422000 Shaoyang City, Hunan province Baoqing Shuangqing District Science and Technology Industrial Park industrial incubator No. 4 4 floor West Patentee after: Hunan Wan Wan Medical Technology Co., Ltd. Address before: Shaoyang City, Hunan Zijiang step 422000 South Road Daxiang District, city building 1 unit 1504 1 months Patentee before: SHAOYANG WANMAI TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |