CN102937101B - Self-pressured low-pressure large-flow air pump - Google Patents
Self-pressured low-pressure large-flow air pump Download PDFInfo
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- CN102937101B CN102937101B CN201210475935.6A CN201210475935A CN102937101B CN 102937101 B CN102937101 B CN 102937101B CN 201210475935 A CN201210475935 A CN 201210475935A CN 102937101 B CN102937101 B CN 102937101B
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- Prior art keywords
- air
- fan blade
- pump housing
- pump
- bonnet
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- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000241 respiratory effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-pressured low-pressure large-flow air pump. According to the invention, an air inlet blade and an output blade are respectively arranged at the front and rear ends of a pump body; the rear end of the pump body is sealed through the arrangement of a rear cover; a spiral air flow channel is formed in the pump body; air flow is blown into the air flow channel through the air inlet blade; the air flow rotates in the air flow channel to form certain pressure, and flows in an air pressure cavity formed between the rear cover and the output blade through the air flow channel; the output blade rotates to cause air flow pressure in the air pressure cavity to rise; and the air flow is fed into the air outlet channel through an air delivery port of the output blade, and then sent out of the air pump for use. The pressure and flow of the air output by the air pump can be controlled by adjusting the rotating speed of the air inlet blade and the output blade; the air pump can realize the pressurization process, so that the structure of the air pump is simplified and the size of the air pump is reduced; and the air pump can output low-pressure large-flow air, is convenient to use, and has excellent use performance.
Description
Technical field
the present invention relates to a kind of from supercharging low pressure and mass flow air pump, particularly relate to a kind of on sleep-respiratory machine from supercharging low pressure and mass flow air pump.
Background technique
pressure and flow are the important parameters of two of sleep-respiratory machine, and it affects the usability of respiratory machine to a certain extent.When developing sleep-respiratory machine project, first need the problem solved to be and search out the air pump that a kind of pressure, flow all meet the performance requirement of respiratory machine, air pump is while meeting the Essential Performance Requirements compared with low pressure, large discharge, and air pump self should have less volume.In the air pump on sleep-respiratory machine in the market, this " air pump of small volume low pressure and mass flow " is more difficult to be found, be not volume be exactly greatly that throughput is little, or pressure does not reach the requirement of respiratory machine, this affects the usability of sleep-respiratory machine largely.
Summary of the invention
the object of this invention is to provide one from supercharging low pressure and mass flow air pump, this air pump can be formed from supercharging, exports comparatively large discharge while providing lower pressure, and its structure is simple, and using effect is good.
for achieving the above object, the technical solution used in the present invention is: a kind of from supercharging low pressure and mass flow air pump, described air pump comprises the pump housing with hollow cavity, the circumferential side wall of the described pump housing offers spiral helicine air-flow path, the two ends of described air-flow path are respectively to extension and before running through the described pump housing, rearward end, the circumferential side wall of the described pump housing offers an outlet passageway, described outlet passageway is connected with described hollow cavity, motor is provided with in the described hollow cavity of the described pump housing, two axial end portions of described motor are drivingly connected with air inlet fan blade respectively, export fan blade, described air inlet fan blade is positioned at the front end of the described pump housing, suction port and the described air-flow path phase airflow connection of described air inlet fan blade, described output fan blade is positioned at the rear end of the described pump housing, the rear end of the described pump housing is also provided with a bonnet hermetically, described bonnet, an atmospheric pressure cavity is formed between described output fan blade, described atmospheric pressure cavity and described air-flow path phase airflow connection, defeated air port and the described outlet passageway phase airflow connection of described output fan blade.
preferably, the front end of the described pump housing offers the annular chamber extended vertically, the oral area of described chamber and the described suction port of described air inlet fan blade are oppositely arranged, bottom and the described air-flow path phase airflow connection of described chamber.
preferably, the described pump housing is cylindrical shape, and described bonnet is the tubular of front opening, and described bonnet be located in the outside perimembranous of the described pump housing ordinatedly before backward, and the inside circumference of described bonnet fits tightly mutually with the outside circumference of the described pump housing.
further preferably, the external circumferential sidewall of the described pump housing offers helical groove, inside circumference and the described helical groove of described bonnet form described air-flow path.
still more preferably, atmospheric pressure cavity lid is also provided with between described output fan blade and described bonnet, the outer rim edge of described atmospheric pressure cavity lid fits tightly mutually with the inside circumference of described bonnet, and the center of described atmospheric pressure cavity lid is also provided with the air outlet consistent with described defeated air port.
preferably, the output shaft of described motor runs through two axial end portions of described motor and extends respectively to two ends, and described air inlet fan blade, described output fan blade are drivingly arranged on the forward and backward end of described output shaft respectively.
as a kind of concrete mode of execution, described motor is hall electric machine.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: one of the present invention is from supercharging low pressure and mass flow air pump, wherein by arranging air inlet fan blade in the rear and front end of the pump housing respectively and exporting fan blade, by bonnet, pump housing rear end is arranged in sealing, and on the pump housing, offer spiral helicine air-flow path, by air inlet fan blade, air-flow is blasted in air-flow path, air-flow rotates and forms certain pressure and flow into bonnet through air-flow path and export the atmospheric pressure cavity formed between fan blade in air-flow path, exporting fan blade rotation causes the stream pressure in this atmospheric pressure cavity to raise, the defeated air port of this air-flow through exporting fan blade is delivered to outlet passageway and is sent outside air pump and use.Can export the pressure of gas to air pump by adjustment air inlet fan blade and the rotating speed that exports fan blade and flow controls, this air pump itself can realize the process of supercharging, makes simplifying the structure of air pump, and volume also can reduce.This air pump can export the gas of low pressure and mass flow, and it is easy to use, has good usability.
Accompanying drawing explanation
accompanying drawing 1 is the overall structure schematic diagram of air pump of the present invention;
accompanying drawing 2 is the STRUCTURE DECOMPOSITION schematic diagram of air pump of the present invention;
accompanying drawing 3 is the schematic rear view of air pump of the present invention;
accompanying drawing 4 is A-A portion sectional structure schematic diagram in accompanying drawing 3;
accompanying drawing 5 is B-B portion sectional structure schematic diagram in accompanying drawing 3;
accompanying drawing 6 is C-C portion sectional structure schematic diagram in accompanying drawing 3.
Embodiment
below in conjunction with accompanying drawing and specific embodiment, technological scheme of the present invention is further elaborated.
see shown in Fig. 1 ~ 6 from supercharging low pressure and mass flow air pump, this air pump comprises the pump housing 1 with hollow cavity, the circumferential side wall of this pump housing 1 offers spiral helicine air-flow path 11, one end of this air-flow path 11 extends forward and runs through the front end of the pump housing 1, and its other end extends back and runs through the rearward end of the pump housing 1.When arranging, the Hand of spiral of air-flow path 11 should be arranged along the sense of rotation entering air-flow path 11 apoplexy, like this, can form certain stream pressure when the air-flow of rotation rotates in air-flow path 11.Here fore-and-aft direction is that the direction entered according to gas defines, and the end that gas enters the pump housing 1 is front end, and its end opposite is rear end, that is the fore-and-aft direction of observer's sight line when observing Fig. 1, Fig. 2, wherein, the front of sight line is front, after the rear of sight line is.The circumferential side wall of the pump housing 1 offers an outlet passageway 12, this outlet passageway 12 is connected with the hollow cavity of the pump housing 1, thus the gas in the pump housing 1 is exported, be provided with motor 2 in the hollow cavity of the pump housing 1, two axial end portions of motor 2 be drivingly connected with respectively air inlet fan blade 3, export fan blade 4.Air inlet fan blade 3 is positioned at the front end of the pump housing 1, suction port and the air-flow path 11 phase airflow connection of air inlet fan blade 3, export the rear end that fan blade 4 is positioned at the pump housing 1, the rear end of the pump housing 1 is also provided with a bonnet 5 hermetically, an atmospheric pressure cavity 51 is formed between bonnet 5, output fan blade 4, atmospheric pressure cavity 51 and the end phase airflow connection of air-flow path 11, export defeated air port and the outlet passageway 12 phase airflow connection of fan blade 4.Here, motor 2 can adopt hall electric machine, thus conveniently control to the rotation status of motor output shaft, the output shaft of motor 2 can be set to run through motor 2 vertically and extend respectively to two ends, air inlet fan blade 3, exports on output shaft end that fan blade 4 is drivingly arranged on motor 2 two ends respectively and realizes common rotary work.
like this, when this air pump runs, motor 2 works and drives air inlet fan blade 3, export fan blade 4 rotates, gas is entered by the suction port of air inlet fan blade 3, and send in air-flow path 11 through suction port, gas rotates and produces certain pressure and be admitted in atmospheric pressure cavity 51 in air-flow path 11, and the gas in atmospheric pressure cavity 51 is then blasted the defeated air port of output fan blade 4 and enters in outlet passageway 12 by the rotation exporting fan blade 4, and gas flows out the pump housing 1 through outlet passageway 12.Rearward end due to the pump housing 1 is airtight setting, when exporting fan blade 4 and rotating, can form higher pressure in atmospheric pressure cavity 51 in its back-end, increase the pressure of output gas flow.By controlling the rotating speed of motor 2, simultaneously to air inlet fan blade 3, the rotational speed exporting fan blade 4, thus can control air pump to reach pressure and the flow of desired gas, its control procedure is simple and convenient.
shown in Fig. 2, Fig. 4, the front end of the pump housing 1 offers the annular chamber 13 extended vertically, the oral area of chamber 13 and the suction port of air inlet fan blade 3 are oppositely arranged, the bottom of chamber 13 then with air-flow path 11 phase airflow connection, like this, when having air inlet fan blade 3 to blast air-flow, air-flow directly enters in chamber 13 through the suction port of air inlet fan blade 3, be sent in air-flow path 11 by chamber 13 again, arrange like this and the gas blasted by air inlet fan blade 3 can be made can all to flow in air-flow path 11.
shown in Fig. 1 ~ 6, in the present embodiment, the pump housing 1 is in cylindrical shape, the tubular of bonnet 5 in front opening, bonnet 5 be located in the outside perimembranous of the pump housing 1 ordinatedly before backward, the inside circumference of bonnet 5 fits tightly setting mutually with the outside circumference of the pump housing 1, so just defines the sealing to the pump housing 1 rearward end.The external circumferential sidewall of the pump housing 1 offers helical groove, and inside circumference and the above-mentioned helical groove of bonnet 5 just define air-flow path 11, comparatively simple and convenient when the pump housing 1 production and processing like this.In the present embodiment, export between fan blade 4 and bonnet 5 and be also provided with atmospheric pressure cavity lid 6, atmospheric pressure cavity lid 6 is arranged in bonnet 5 and the outer rim edge of atmospheric pressure cavity lid 6 fits tightly mutually with the inside circumference of bonnet 5, the center of atmospheric pressure cavity lid 6 is also provided with the air outlet consistent with the defeated air port exporting fan blade 4, atmospheric pressure cavity 51 and air-flow path 11 can be isolated by such setting, ensure that the air-flow entering the pump housing 1 all screws in atmospheric pressure cavity 51 through spiral helicine air-flow path 11.Gas in atmospheric pressure cavity 51 flows into through air outlet in the defeated air port exporting fan blade 4 and is admitted to outlet passageway 12 again.
to sum up, one of the present invention is from supercharging low pressure and mass flow air pump, wherein by arranging air inlet fan blade 3 in the rear and front end of the pump housing 1 respectively and exporting fan blade 4, by bonnet 5, the pump housing 1 rear end is arranged in sealing, and on the pump housing 1, offer spiral helicine air-flow path 11, by air inlet fan blade 3, air-flow is blasted in air-flow path 11, air-flow rotates and forms certain pressure and flow into bonnet 5 through air-flow path 11 and export the atmospheric pressure cavity 51 formed between fan blade 4 in air-flow path 11, output fan blade 4 rotates to cause and causes the stream pressure in this atmospheric pressure cavity 51 to raise, the defeated air port of this air-flow through exporting fan blade 4 is delivered to outlet passageway 12 and is sent outside air pump and use.Can export the pressure of gas to air pump by adjustment air inlet fan blade 3 and the rotating speed that exports fan blade 4 and flow controls, this air pump itself can realize the process of supercharging, makes simplifying the structure of air pump, and volume also can reduce.This air pump can export the gas of low pressure and mass flow, and it is easy to use, has good usability.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. one kind from supercharging low pressure and mass flow air pump, it is characterized in that: described air pump comprises the pump housing with hollow cavity, the circumferential side wall of the described pump housing offers spiral helicine air-flow path, the two ends of described air-flow path are respectively to extension and before running through the described pump housing, rearward end, the circumferential side wall of the described pump housing offers an outlet passageway, described outlet passageway is connected with described hollow cavity, motor is provided with in the described hollow cavity of the described pump housing, two axial end portions of described motor are drivingly connected with air inlet fan blade respectively, export fan blade, described air inlet fan blade is positioned at the front end of the described pump housing, suction port and the described air-flow path phase airflow connection of described air inlet fan blade, described output fan blade is positioned at the rear end of the described pump housing, the rear end of the described pump housing is also provided with a bonnet hermetically, described bonnet, an atmospheric pressure cavity is formed between described output fan blade, described atmospheric pressure cavity and described air-flow path phase airflow connection, defeated air port and the described outlet passageway phase airflow connection of described output fan blade, the front end of the described pump housing offers the annular chamber extended vertically, the oral area of described chamber and the described suction port of described air inlet fan blade are oppositely arranged, bottom and the described air-flow path phase airflow connection of described chamber,
The described pump housing is cylindrical shape, and described bonnet is the tubular of front opening, and described bonnet be located in the outside perimembranous of the described pump housing ordinatedly before backward, and the inside circumference of described bonnet fits tightly mutually with the outside circumference of the described pump housing,
The external circumferential sidewall of the described pump housing offers helical groove, and inside circumference and the described helical groove of described bonnet form described air-flow path.
2. one according to claim 1 is from supercharging low pressure and mass flow air pump, it is characterized in that: between described output fan blade and described bonnet, be also provided with atmospheric pressure cavity lid, the outer rim edge of described atmospheric pressure cavity lid fits tightly mutually with the inside circumference of described bonnet, and the center of described atmospheric pressure cavity lid is also provided with the air outlet consistent with described defeated air port.
3. one according to claim 1 is from supercharging low pressure and mass flow air pump, it is characterized in that: the output shaft of described motor runs through two axial end portions of described motor and extends respectively to two ends, and described air inlet fan blade, described output fan blade are drivingly arranged on the forward and backward end of described output shaft respectively.
4. the one according to claim 1 or 3, from supercharging low pressure and mass flow air pump, is characterized in that: described motor is hall electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475935.6A CN102937101B (en) | 2012-11-21 | 2012-11-21 | Self-pressured low-pressure large-flow air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475935.6A CN102937101B (en) | 2012-11-21 | 2012-11-21 | Self-pressured low-pressure large-flow air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102937101A CN102937101A (en) | 2013-02-20 |
| CN102937101B true CN102937101B (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210475935.6A Expired - Fee Related CN102937101B (en) | 2012-11-21 | 2012-11-21 | Self-pressured low-pressure large-flow air pump |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235033A (en) * | 2013-06-13 | 2014-12-24 | 陈卫星 | Minitype direct current vortex draught fan |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1985861A2 (en) * | 2001-12-10 | 2008-10-29 | ResMed Limited | Blower apparatus of the CPAP/NIPPV type |
| CN101296722A (en) * | 2005-10-28 | 2008-10-29 | 雷斯梅德有限公司 | Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor |
| CN102686888A (en) * | 2009-10-29 | 2012-09-19 | 雷斯麦德有限公司 | Patient ventilating device and components thereof |
| CN202991541U (en) * | 2012-11-21 | 2013-06-12 | 捷锐企业(上海)有限公司 | Self-pressurization low pressure large flow air pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3045196B1 (en) * | 2005-10-28 | 2018-12-12 | ResMed Motor Technologies Inc | Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor |
| NZ589602A (en) * | 2006-05-24 | 2012-02-24 | Resmed Motor Technologies Inc | Low noise blower for CPAP devices with a shield to isolate the stator vane from the impeller pressure pulse |
| US8453640B2 (en) * | 2008-11-12 | 2013-06-04 | Resmed Limited | Positive airway pressure device |
| CN109646773B (en) * | 2009-08-11 | 2021-10-29 | 瑞思迈发动机及马达技术股份有限公司 | Single-stage axisymmetric blower and portable ventilator |
-
2012
- 2012-11-21 CN CN201210475935.6A patent/CN102937101B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1985861A2 (en) * | 2001-12-10 | 2008-10-29 | ResMed Limited | Blower apparatus of the CPAP/NIPPV type |
| CN101296722A (en) * | 2005-10-28 | 2008-10-29 | 雷斯梅德有限公司 | Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor |
| CN102686888A (en) * | 2009-10-29 | 2012-09-19 | 雷斯麦德有限公司 | Patient ventilating device and components thereof |
| CN202991541U (en) * | 2012-11-21 | 2013-06-12 | 捷锐企业(上海)有限公司 | Self-pressurization low pressure large flow air pump |
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| Publication number | Publication date |
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| CN102937101A (en) | 2013-02-20 |
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Effective date of registration: 20160202 Address after: Xinghu Street Industrial Park of Suzhou city in Jiangsu province 215123 No. 218 BioBAY B1-409 Patentee after: Suzhou thinking Medical Technology Co Ltd Address before: 201600 Shanghai City, Songjiang District Yushu Road No. 1988 gentec (Shanghai) Co. Patentee before: Wang Wei |
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| 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: 20150506 Termination date: 20171121 |