CN105268069B - Blower fan cabin - Google Patents
Blower fan cabin Download PDFInfo
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- CN105268069B CN105268069B CN201510846399.XA CN201510846399A CN105268069B CN 105268069 B CN105268069 B CN 105268069B CN 201510846399 A CN201510846399 A CN 201510846399A CN 105268069 B CN105268069 B CN 105268069B
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- outer cabin
- splitter
- cabin
- blower fan
- cabin air
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Abstract
The present invention relates to lung ventilator technical field, more particularly, to a kind of blower fan cabin.The blower fan cabin, suitable for lung ventilator, including outer cabin and inside cabin, the inside cabin is located inside the outer cabin；Outer cabin air inlet is provided between the outer cabin and the inside cabin, the outer cabin is additionally provided with outer cabin air outlet；Multiple splitters are installed with the outer cabin；The multiple splitter is close to the outer cabin air outlet；The cross-wise direction that the multiple splitter flows along gas is arranged at intervals, and is extended along gas flow direction；The inside cabin is used to fix blower fan, and the blower fan is used to make gas in the blower fan flow through the multiple splitter from the outer cabin air inlet, flows to the outer cabin air outlet.It is an object of the invention to provide a kind of blower fan cabin, to improve the accuracy of detection of the lung ventilator to the pressure value of output gas and flow value.
Description
Technical field
The present invention relates to lung ventilator technical field, more particularly, to a kind of blower fan cabin.
Background technology
In current clinical medicine, effective means of the lung ventilator as an energy artificial substituting expiratory positive airway pressure function is general
Respiratory failure caused by a variety of causes is used for, the anesthesia respiration management during major operation, Breathing Suppotion treatment and emergency resuscitation
In, highly important position is occupied in Modern Medical Field.Lung ventilator is that one kind can play prevention and treatment respiratory failure,
Complication is reduced, saves and extend the vital Medical Devices of patients ' lives.
Blower fan cabin is the important component of lung ventilator, is mainly used in fixing blower fan.Typically adopted inside existing lung ventilator
With high-speed fan, to reach the pressure of gas needed for patient and flow；It is existing breathing machine testing output gas pressure value and
Flow value poor accuracy, adaptability of the lung ventilator to different patients is influenceed, also influences the use to lung ventilator.
The content of the invention
It is an object of the invention to provide a kind of blower fan cabin, to improve pressure value and flow value of the lung ventilator to output gas
Detection accuracy.
The invention provides a kind of blower fan cabin, including outer cabin and inside cabin, the inside cabin is located inside the outer cabin；
Outer cabin air inlet is provided between the outer cabin and the inside cabin, the outer cabin is additionally provided with outer cabin air outlet；
Multiple splitters are installed with the outer cabin；The multiple splitter is close to the outer cabin air outlet；
The cross-wise direction that the multiple splitter flows along gas is arranged at intervals, and is extended along gas flow direction；
The inside cabin is used to fix blower fan, and the blower fan is used to make gas in the blower fan flow through institute from the outer cabin air inlet
Multiple splitters are stated, flow to the outer cabin air outlet.
Further, the splitter between the adjacent splitter is away from equal；The length of the splitter and the shunting
The ratio of a pitch of fins is more than 10, and the splitter is 1.5mm-2.5mm away from scope.
Further, the length of the splitter and the splitter away from ratio range be 10-20.
Further, the quantity of the splitter is three.
Further, the outer cabin includes outer cabin air channel, and the both ends in the outer cabin air channel set the outer cabin air intake respectively
Mouth and the outer cabin air outlet；The multiple splitter is installed in the outer cabin air channel；The outer cabin air channel helically wire.
Further, the outer cabin air inlet is fixedly connected with the fan outlet of the blower fan；The outer cabin air outlet
The axial direction for being axially perpendicular to the outer cabin air inlet；Be provided with diffusion chamber inside the outer cabin, the outer cabin air channel and it is described outside
Cabin air outlet is connected by the diffusion chamber；Along the gas flow direction, the sectional area of the diffusion chamber is more than the outer cabin
The sectional area in air channel, and the diffusion chamber sectional area be more than the outer cabin air outlet sectional area.
Further, the diffusion intracavitary is installed with wind deflector；The wind deflector is at the outer cabin air outlet, and edge
The outer cabin air outlet it is tangentially extending.
Further, the wind deflector is parallel to the splitter.
Further, the outer cabin is installed with pressure sensor hole and flow sensor hole；Along the gas flow direction,
The flow sensor hole is respectively equipped with close to the both ends of the multiple splitter；The multiple splitter and the outer cabin air-out
The pressure sensor hole is provided between mouthful；
The pressure sensor hole is used to connect pressure sensor；The flow sensor hole is used to connect flow sensing
Device.
Further, the cross-wise direction flowed along the gas, the multiple splitter is positioned at the middle splitter
The length for being shorter in length than the splitter positioned at both sides；Along the gas flow direction, the both ends of the splitter are in circle
Arc.
Blower fan cabin provided by the invention, by setting multiple splitters at the outer cabin air outlet, so as to by splitter
Residing gas flow channel is divided into multiple passages, adds the friction area of flowing gas, and pure gas stream is greatly reduced
The problem of air-flow velocity at very fast, the close gas flow channel edge of central gas stream flow velocity of dynamic passage is slower, makes output gas
It is distributed in gas flow channel more uniformly, and then the flow velocity of cross-wise direction that the gas for flowing through splitter flows along gas
More uniformly, and then the accuracy of detection of the lung ventilator to the pressure value of output gas and flow value is improved.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the dimensional structure diagram in blower fan cabin provided in an embodiment of the present invention；
Fig. 2 is the front view in blower fan cabin provided in an embodiment of the present invention；
Fig. 3 is the sectional view along A-A directions in the blower fan cabin shown in Fig. 2；
Fig. 4 is the sectional view along B-B directions in the blower fan cabin shown in Fig. 2；
Fig. 5 is the sectional view along C-C directions in the blower fan cabin shown in Fig. 2；
Fig. 6 is the sectional view along D-D directions in the blower fan cabin shown in Fig. 2；
Fig. 7 is the sectional view along E-E directions in the blower fan cabin shown in Fig. 2.
Reference：
The outer cabins of 101-；The outer cabin air inlets of 1011-；
The outer cabin air outlets of 1012-；The outer cabin air channels of 1013-；1014- diffusion chambers；
102- inside cabins；103- splitters；104- wind deflectors；
105- pressure sensors hole；106- flow sensors hole.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment
Referring to shown in Fig. 1-Fig. 7, present embodiments providing a kind of blower fan cabin；Fig. 1 is blower fan provided in an embodiment of the present invention
The dimensional structure diagram in cabin；Fig. 2 is the front view in blower fan cabin provided in an embodiment of the present invention；In order to more clearly show that knot
Structure, Fig. 1, Fig. 2 illustrate only the primary structure in blower fan cabin, and the upper lid in blower fan cabin is not shown in the diagram；Fig. 3-Fig. 7 is shown in Fig. 2
Blower fan cabin sectional view, wherein, Fig. 3 is the sectional view along A-A directions, and Fig. 4 is the sectional view along B-B directions, and Fig. 5 is along C-
The sectional view in C directions, Fig. 6 are the sectional view along D-D directions, and Fig. 7 is the sectional view along E-E directions；Wherein, Fig. 6, Fig. 7 are empty
Line divides outer cabin air outlet and diffusion chamber.
Referring to the blower fan cabin that shown in Fig. 1-Fig. 7, the present embodiment provides, suitable for lung ventilator, including outer cabin 101 and inside cabin
102, inside cabin 102 is located inside outer cabin 101.
Outer cabin air inlet 1011 is provided between outer cabin 101 and inside cabin 102, outer cabin 101 is additionally provided with outer cabin air outlet
1012。
Multiple splitters 103 are installed with outer cabin 101；Multiple splitters 103 are close to outer cabin air outlet 1012.
The cross-wise direction that multiple splitters 103 flow along gas is arranged at intervals, and is extended along gas flow direction.
Inside cabin 102 is used to fix blower fan, and blower fan is used to make gas in blower fan flow through multiple shuntings from outer cabin air inlet 1011
Piece 103, flow to outer cabin air outlet 1012.
Blower fan cabin described in the present embodiment by setting multiple splitters 103 at the outer cabin air outlet 1012, so as to
Gas flow channel residing for splitter 103 is divided into multiple passages, the friction area of flowing gas is added, is greatly reduced
The problem of air-flow velocity at very fast, the close gas flow channel edge of the central gas stream flow velocity of pure gas flow channel is slower,
Output gas is set to be distributed in gas flow channel more uniformly, and then the gas that flows through splitter 103 flows along gas
The flow velocity of cross-wise direction is more uniform, and then improves the accurate of detection of the lung ventilator to the pressure value of output gas and flow value
Degree.
Further, the splitter between adjacent splitter 103 is away from equal；The length of splitter 103 and splitter away from
Ratio is more than 10, and the ratio further increases the flow velocity that flows through the cross-wise direction that the gas of splitter 103 flows along gas
The uniformity, so that the accuracy of detection of the lung ventilator to the pressure value of output gas and flow value is higher；Preferably, splitter away from
Scope is 1.5mm-2.5mm, on the one hand the splitter avoids splitter away from gas can be made to reach optimum value with splitter 103
Away from distance it is too small and increase the resistance by the air-flow of splitter 103, and then influence the pressure value and flow to output gas
The accuracy of the detection of value, on the other hand it also avoid splitter away from distance it is too big and can not reach by the phase of splitter 103
To uniform distribution output gas flow, and then influence the accuracy to the pressure value of output gas and the detection of flow value.
Preferably, the length of splitter 103 and splitter away from ratio range be 10-20.Further to optimize, improve stream
The uniformity of the flow velocity for the cross-wise direction that gas through splitter 103 flows along gas, so that pressure of the lung ventilator to output gas
The accuracy of the detection of force value and flow value.
The quantity of splitter 103 for example can be two, three, four, six, eight etc.；The present embodiment it is optional
In scheme, the quantity of splitter 103 is three, so as to which the gas flow channel residing for splitter 103 is divided into four passages.
In the alternative of the present embodiment, outer cabin 101 includes outer cabin air channel 1013, and the both ends in outer cabin air channel 1013 are set respectively
Put outer cabin air inlet 1011 and outer cabin air outlet 1012；Multiple splitters 103 are installed in outer cabin air channel 1013, namely splitter
103 divide in the outer cabin air channel 1013 residing for splitter 103 for multiple passages；Outer cabin air channel 1013 helically wire, so that gas
The outer cabin air outlet 1012 of the discharge of spiral, so that the outflow path of gas does not have the turn of wide-angle, will not produce local eddy currents,
Meet the movement locus of gas, noise caused by gas flowing can be reduced.
Further, outer cabin air inlet 1011 is fixedly connected with the fan outlet of blower fan, such as can be, outer cabin air intake
The fan outlet of mouth 1011 and blower fan passes through connecting tube fixed seal connection；Outer cabin air outlet 1012 is axially perpendicular to outer cabin
The axial direction of air inlet 1011；The outer inside of cabin 101 is provided with diffusion chamber 1014, and outer cabin air channel 1013 and outer cabin air outlet 1012 pass through expansion
Pressure chamber 1014 is connected, i.e., gas flow is flowed out from fan outlet, and outer cabin air channel 1013 is flowed into by outer cabin air inlet 1011, is flowed
Through multiple splitters 103, diffusion chamber 1014 is flowed into, is flowed out from outer cabin air outlet 1012；Along gas flow direction, diffusion chamber 1014
Sectional area be more than outer cabin air channel 1013 sectional area, and diffusion chamber 1014 sectional area be more than outer cabin air outlet 1012 cut
Area.To be converted to the principle of potential energy according to kinetic energy, the gas of the high speed rotation exported from outer cabin air inlet 1011, stream are utilized
Through changing outbound course during diffusion chamber 1014, because of the gas and changing flow direction in diffusion chamber 1014 and caused by slow down, and subtract
The kinetic energy that the gas of high speed rotation has is converted into pressure energy by speed effect, so as to offset or reduce gas in output procedure
The pressure loss.
When the gas of the high speed rotation exported from outer cabin air inlet 1011 flows into diffusion chamber 1014, flow section expands suddenly
Greatly, due to the inertia of fluid, it is impossible to expanded to suddenly in whole cross section along the shape of diffusion chamber 1014, but have one gradually
The process of expansion, so as to produce substantial amounts of vortex recirculation inside diffusion chamber 1014, whirlpool area is formed, gas is influenceed and goes out from outer cabin
Air port 1012 is discharged, and then influences the pressure of lung ventilator output gas and the stability of flow；In order to solve the problem, this implementation
In the alternative of example, wind deflector 104 is installed with diffusion chamber 1014；Wind deflector 104 is at outer cabin air outlet 1012, and edge
Outer cabin air outlet 1012 it is tangentially extending, will pass through wind deflector 104, and coordinate splitter 103, will rotation at a high speed gas
Air-flow be divided into multiple regions, guiding gas discharges outer cabin air outlet 1012, reduces the scale in whirlpool area, and then reduction whirlpool area
The stability of pressure and flow to output gas, so as to improve the stability of the pressure of lung ventilator output gas and flow.
Further, wind deflector 104 is parallel to splitter 103, in order to preferably guide gas to discharge outer cabin air outlet
1012。
In the alternative of the present embodiment, outer cabin 101 is installed with pressure sensor hole 105 and flow sensor hole 106；Edge
Gas flow direction, flow sensor hole 106 is respectively equipped with close to the both ends of multiple splitters 103；Multiple splitters 103 with it is outer
Pressure sensor hole 105 is provided between cabin air outlet 1012.After flow through bypass piece 103, along the cross-wise direction of gas flowing
Flow velocity it is more uniform, so as to improve pressure sensor and flow sensor respectively to the pressure and flow detection of output gas
Accuracy；Preferably, pressure sensor hole 105 and flow sensor hole 106 are located in outer cabin air channel 1013.
Pressure sensor hole 105 is used to connect pressure sensor；Flow sensor hole 106 is used to connect flow sensor.
Flow sensor uses the existing sensor with two measured holes, can greatly reduce because flow sensor hole 106 blocks
Caused error, so that the gas flow values of detection are more accurate；Preferably, flow sensor uses passive device, in order to
The installation and operation of flow sensor.
Further, the cross-wise direction flowed along gas, length of multiple splitters 103 positioned at middle splitter 103
Be shorter than positioned at both sides splitter 103 length, so as to flow through the gas of multiple passages of splitter 103 can more can be good effect
In pressure sensor and flow sensor, and then improve its accuracy of detection；Preferably, the cross-wise direction flowed along gas, it is multiple
Splitter 103 is symmetrical set, and pressure sensor hole 105 and flow sensor hole 106 are located on the line of symmetry respectively；Along gas
Flow direction, the both ends of splitter 103 are in circular arc, to reduce resistance of the splitter 103 to gas.
In the alternative of the present embodiment, when the quantity of splitter 103 is three, positioned at the length of the splitter 103 of centre
Degree is shorter than the length of the splitter 103 positioned at both sides, and pressure sensor hole 105 and flow sensor hole 106 are respectively positioned at centre
Splitter 103 along the extended line of gas flow direction, so as to pressure sensor and the pressure of flow sensor detection gas
Value and flow value are more accurate.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (8)
1. a kind of blower fan cabin, suitable for lung ventilator, it is characterised in that including outer cabin and inside cabin, the inside cabin is located at the outer cabin
It is internal；
Outer cabin air inlet is provided between the outer cabin and the inside cabin, the outer cabin is additionally provided with outer cabin air outlet；
Multiple splitters are installed with the outer cabin；The multiple splitter is close to the outer cabin air outlet；
The cross-wise direction that the multiple splitter flows along gas is arranged at intervals, and is extended along gas flow direction；
The inside cabin is used to fix blower fan, and it is described more that the blower fan is used to make in the blower fan gas to be flowed through from the outer cabin air inlet
Individual splitter, flow to the outer cabin air outlet；
Splitter between the adjacent splitter is away from equal；The length of the splitter and the splitter away from ratio be more than
10, the splitter is 1.5mm-2.5mm away from scope；
The outer cabin includes outer cabin air channel, and the both ends in the outer cabin air channel set the outer cabin air inlet and the outer cabin to go out respectively
Air port；The multiple splitter is installed in the outer cabin air channel；The outer cabin air channel helically wire；
Diffusion chamber is provided with inside the outer cabin, the outer cabin air channel is connected with the outer cabin air outlet by the diffusion chamber；Edge
The gas flow direction, the sectional area of the diffusion chamber are more than the sectional area in the outer cabin air channel, and the diffusion chamber
Sectional area is more than the sectional area of the outer cabin air outlet.
2. blower fan cabin according to claim 1, it is characterised in that the length of the splitter and the splitter away from ratio
Value scope is 10-20.
3. blower fan cabin according to claim 2, it is characterised in that the quantity of the splitter is three.
4. blower fan cabin according to claim 1, it is characterised in that the blower fan air-out of the outer cabin air inlet and the blower fan
Mouth is fixedly connected；The axial direction for being axially perpendicular to the outer cabin air inlet of the outer cabin air outlet.
5. blower fan cabin according to claim 4, it is characterised in that the diffusion intracavitary is installed with wind deflector；The wind-guiding
Plate is at the outer cabin air outlet, and along the tangentially extending of the outer cabin air outlet.
6. blower fan cabin according to claim 5, it is characterised in that the wind deflector is parallel to the splitter.
7. according to the blower fan cabin described in claim any one of 1-3, it is characterised in that the outer cabin is installed with pressure sensor hole
With flow sensor hole；Along the gas flow direction, it is respectively equipped with the flow close to the both ends of the multiple splitter and passes
Sensor hole；The pressure sensor hole is provided between the multiple splitter and the outer cabin air outlet；
The pressure sensor hole is used to connect pressure sensor；The flow sensor hole is used to connect flow sensor.
8. blower fan cabin according to claim 7, it is characterised in that the cross-wise direction flowed along the gas, it is the multiple
The length that is shorter in length than the splitter positioned at both sides of the splitter positioned at the middle splitter；Flowed along the gas
Direction, the both ends of the splitter are in circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846399.XA CN105268069B (en) | 2015-11-27 | 2015-11-27 | Blower fan cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846399.XA CN105268069B (en) | 2015-11-27 | 2015-11-27 | Blower fan cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105268069A CN105268069A (en) | 2016-01-27 |
| CN105268069B true CN105268069B (en) | 2017-11-14 |
Family
ID=55138448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510846399.XA Active CN105268069B (en) | 2015-11-27 | 2015-11-27 | Blower fan cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105268069B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2337795A (en) * | 1998-05-27 | 1999-12-01 | Ebara Corp | An impeller with splitter blades |
| CN2567386Y (en) * | 2002-08-30 | 2003-08-20 | 天津市通风机厂 | Pressure return type outlet noise silencer |
| AU2003903139A0 (en) * | 2003-06-20 | 2003-07-03 | Resmed Limited | Breathable gas apparatus with humidifier |
| TW200636169A (en) * | 2005-04-01 | 2006-10-16 | Shwin-Chung Wong | A flow distributor for a fan |
| CN100436837C (en) * | 2005-10-25 | 2008-11-26 | 西北工业大学 | Louver distribution of raising pneumatic stability |
| EP2317150B1 (en) * | 2009-10-29 | 2019-12-18 | ResMed Pty Ltd | Patient ventilation device and components thereof |
| JP5308319B2 (en) * | 2009-12-02 | 2013-10-09 | 三菱重工業株式会社 | Centrifugal compressor impeller |
| FR2976634B1 (en) * | 2011-06-14 | 2013-07-05 | Snecma | TURBOMACHINE ELEMENT |
| US10570928B2 (en) * | 2013-03-15 | 2020-02-25 | Regal Beloit America, Inc. | Centrifugal blower assembly and method for assembling the same |
| CN204553347U (en) * | 2015-03-17 | 2015-08-12 | 广东美的制冷设备有限公司 | The spiral case of centrifugal blower, centrifugal blower and air conditioner |
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2015
- 2015-11-27 CN CN201510846399.XA patent/CN105268069B/en active Active
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