CN105288808B - Lung ventilator - Google Patents
Lung ventilator Download PDFInfo
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- CN105288808B CN105288808B CN201510846430.XA CN201510846430A CN105288808B CN 105288808 B CN105288808 B CN 105288808B CN 201510846430 A CN201510846430 A CN 201510846430A CN 105288808 B CN105288808 B CN 105288808B
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Abstract
The present invention relates to technical field of medical instruments, more particularly, to a kind of lung ventilator.The lung ventilator, including blower fan cabin and blower fan, the blower fan cabin include the first housing and the second housing, and the first shell is placed on second housing in vitro；The blower fan is located in the second shell body, and is fixedly connected with second housing；It is provided between first housing and second housing between damping device, and/or second housing and the blower fan and is provided with damping device.It is an object of the invention to provide a kind of lung ventilator, to solve the technical problem that noise present in prior art is larger.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly, to a kind of lung ventilator.
Background technology
In current clinical medicine, lung ventilator as one can artificial substituting expiratory positive airway pressure function effective means, it 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, the vital Medical Devices of patients ' lives are saved and extend.
But existing lung ventilator causes noise in use larger by using high-speed fan in the inner, influence
Patient rests, and then influences patients ' recovery.
The content of the invention
It is an object of the invention to provide a kind of lung ventilator, asked with solving the larger technology of noise present in prior art
Topic.
The invention provides a kind of lung ventilator, including blower fan cabin and blower fan, the blower fan cabin includes the first housing and second
Housing, the first shell is placed on second housing in vitro；
The blower fan is located in the second shell body, and is fixedly connected with second housing；
Be provided with damping device between first housing and second housing, and/or second housing with it is described
Damping device is provided between blower fan.
Further, the damping device is damping cotton or damping rubber pad.
Further, the damping device is damping sound insulation filter pulp.
Further, first housing includes first upper shell and first lower house, the first upper shell and described
First lower house is fastened and connected by buckle.
Further, the lung ventilator also includes water tank, and the water tank is fixedly connected with first housing；The water tank
Bottom is installed with electronics heating plate；The electronics heating plate is used to heat the liquid in the water tank；
The lung ventilator includes input port and delivery outlet；The blower fan is used to drive gas along the input port described in
The direction flowing of delivery outlet；
The gas of the blower fan output flows through the liquid level top layer of the water tank, is flowed towards the direction of the delivery outlet
It is dynamic；
The lung ventilator also includes filter, and the filter is close to the input port；The filter includes
Air filter film and/or fine filtration membrane.
Further, outer cabin and interior cabin are provided with the second shell body, the interior freight space is inside the outer cabin；
Outer cabin air inlet is provided between the outer cabin and the interior 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 multiple splitter is arranged at intervals along the cross-wise direction that gas flows, and is extended along gas flow direction；
The interior 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, the outer cabin air outlet is flowed to.
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 outer cabin is installed with pressure sensor hole and flow sensor hole；Along the gas flow direction,
Two ends close to the multiple splitter are respectively equipped with the flow sensor hole；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 blower fan includes Blower Housing, impeller and motor；Blower fan air intake is provided with the Blower Housing
Mouth and fan outlet；
The impeller is located at the inside of the Blower Housing, and close to the air inlet；
Impeller described in the output shaft drive connection of the motor, so that the gas is described along air inlet direction
The direction flowing of fan outlet；
It is gas flow space in shell that the inside of the Blower Housing, which is used to accommodate the space of gas,；Gas stream in the shell
The ratio range of the volume and the volume of the impeller in dynamic space is 15-30.
Further, the air inlet is along the axially arranged of the impeller；The fan outlet is along the impeller
Be radially arranged；
Conducting element is provided with the air inlet, company is fixed in the outer surface of the conducting element and the Blower Housing
Connect；The axial direction of output shaft of the conducting element along the motor helically wire.
The lung ventilator that the present invention is provided, by the way that blower fan cabin is set into inside and outside two layers of housing, i.e. the first housing and second shell
It is provided between body, and the first housing and the second housing between damping device and/or the second housing and blower fan and is provided with damping
Device, to reduce the noise of vibrations and its generation of the blower fan of rotation at a high speed, so as to reduce making an uproar for Use of respirator process generation
Sound, reduces influence of the lung ventilator when in use to patient.
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 accompanying drawing used required in embodiment or description of the prior art is briefly described, 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 front view for the lung ventilator that the embodiment of the present invention one is provided；
Fig. 2 is the sectional view of the lung ventilator shown in Fig. 1；
Fig. 3 is the dimensional structure diagram of the second housing of the lung ventilator that the embodiment of the present invention two is provided；
Fig. 4 is the front view of the second housing of the lung ventilator that the embodiment of the present invention two is provided；
Fig. 5 is the sectional view along A-A directions of the second housing shown in Fig. 4；
Fig. 6 is the sectional view along B-B directions of the second housing shown in Fig. 4；
Fig. 7 is the sectional view along C-C directions of the second housing shown in Fig. 4；
Fig. 8 is the sectional view along D-D directions of the second housing shown in Fig. 4；
Fig. 9 is the sectional view along E-E directions of the second housing shown in Fig. 4；
Figure 10 is the front view of the blower fan for the lung ventilator that the embodiment of the present invention three is provided；
Figure 11 is the top view of the blower fan for the lung ventilator that the embodiment of the present invention three is provided；
Figure 12 is the front view of the blower fan upper shell of the blower fan of lung ventilator provided in an embodiment of the present invention；
Figure 13 is the top view of the blower fan upper shell shown in Figure 12；
Figure 14 is the front view of the blower fan lower house of the blower fan of lung ventilator provided in an embodiment of the present invention；
Figure 15 is the top view of the blower fan lower house shown in Figure 14；
Figure 16 is the front view of the impeller of the blower fan of lung ventilator provided in an embodiment of the present invention；
Figure 17 is the top view of the impeller shown in Figure 16.
Reference：
201- blower fans cabin；202- blower fans；The housings of 203- first；
2031- first upper shells；2032- first lower houses；
The housings of 204- second；205- water tanks；206- input ports；
207- delivery outlets；208- filters；
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；
Cabin in 102-；103- splitters；104- wind deflectors；
105- pressure sensors hole；106- flow sensors hole；
1- Blower Housings；Gas flow space in 11- shells；12- locating dowels；
The shockproof positioning protrusion ribs of 13-；14- blower fan upper shells；141- grooves；
15- blower fan lower houses；2- impellers；21- chassis；
22- blades；3- motors；4- air inlets；
5- fan outlets；6- conducting element 7- buckles.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the 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 indicate 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 indicating or implying 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 to 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 one
Referring to shown in Fig. 1, Fig. 2, present embodiments providing a kind of lung ventilator；Fig. 1 is breathing provided in an embodiment of the present invention
The front view of machine, Fig. 2 is the sectional view of the lung ventilator shown in Fig. 1, wherein, blower fan cabin is shown in broken lines in Fig. 1.
Referring to shown in Fig. 1, Fig. 2, the lung ventilator that the present embodiment is provided, including blower fan cabin 201 and blower fan 202, blower fan cabin 201
Including the first housing 203 and the second housing 204, the first housing 203 is coated at the second housing 204.
Blower fan 202 is located in the second housing 204, and is fixedly connected with the second housing 204.
Damping device (not shown), and/or the second housing are provided between first housing 203 and the second housing 204
Damping device is provided between 204 and blower fan 202.Optionally, it is provided with damping between the first housing 203 and the second housing 204
Device, or, damping device is provided between the second housing 204 and blower fan 202, or, the first housing 203 and the second housing
It is provided between 204 between damping device and the second housing 204 and blower fan 202 and is provided with damping device.
Lung ventilator described in the present embodiment by blower fan cabin 201 by being set to inside and outside two layers of housing, the i.e. He of the first housing 203
Be provided between second housing 204, and the first housing 203 and the second housing 204 damping device and/or the second housing 204 with
Damping device is provided between blower fan 202, to reduce the noise of vibrations and its generation of the blower fan 202 of rotation at a high speed, so as to drop
The noise that low Use of respirator process is produced, reduces influence of the lung ventilator when in use to patient.
Wherein, damping device is damping cotton or damping rubber pad.By damping cotton or damping rubber pad to eliminate or subtract
Slow blower fan 202 shakes, so as to reduce the noise of Use of respirator process generation.
Preferably, damping device is damping sound insulation filter pulp, and damping sound insulation filter pulp uses electric wave shape, so as in the same of damping
When the noise of blower fan 202 can be reduce further with sound insulation.Preferably, between the first housing 203 and the second housing 204, with
And second be provided with damping sound insulation filter pulp between housing 204 and blower fan 202.The damping sound insulation filter pulp can make lung ventilator in entirety
In the case that pressure is less than 10cmH2O-20cmH2O, flow about 140L/min, noise is set to be reduced to 27DB by 30DB.
In the alternative of the present embodiment, the first housing 203 includes first upper shell 2031 and first lower house 2032, the
One upper shell 2031 and first lower house 2032 are fastened and connected by buckle.First upper shell is installed using buckle-type connected mode
2031 and first lower house 2032, it is to avoid using mode connects for screw because twist screw exert oneself it is too violent make junction cracking, twist screw
Kick the beam and cause poorly sealed；Installation during batch production is also convenient for, mounting process is simplified, most of workmans can be made to learn quickly
Meeting simultaneously installs out standard compliant product；The error for each side occur drops to extremely low；So that the first housing 203, second shell
The damping devices such as the damping sound insulation filter pulp between body 204, the first housing 203 and the second housing 204 coordinate more excellent, and then reduction is exhaled
The vibratory sensation of suction machine.
In the alternative of the present embodiment, the lung ventilator also includes water tank 205, and water tank 205 is fixed with the first housing 203
Connection；The bottom of water tank 205 is installed with electronics heating plate (belong to prior art, figure not shown in), and electronics heating plate is used to heat
Liquid in water tank 205, to lift the temperature of liquid.
Lung ventilator includes input port 206 and delivery outlet 207；Blower fan 202 is used to drive gas along input port 206 towards output
The direction flowing of mouth 207.
The gas that blower fan 202 is exported flows through the liquid level top layer of water tank 205, is flowed towards the direction of delivery outlet 207；Water tank
Liquid in 205 is after electronics heater plate, and liquid level top layer forms the steam with certain temperature, the gas that blower fan 202 is exported
After body is exchanged with the steam, can lift gas temperature and humidity so that lung ventilator output meet human body requirements, have
The gas of temperature and humidity, reduces sense of discomfort of the relatively low gas of dry, temperature to patient.The liquid is usually water, also may be used
To make the liquid as needed as other solution, to meet different sick Man's Demands.
Lung ventilator also includes filter 208, and filter 208 is close to input port 206, to filter input port 206
Gas；Filter 208 includes air filter film and/or fine filtration membrane.Preferably, filter 208 includes air filter film and essence
Fine filtering film, by above-mentioned filter design, so as to the machine of ensuring respiration air filtration dust quantity up to 97%.
Embodiment two
Embodiment two provides a kind of lung ventilator, and the embodiment is the second shell to lung ventilator on the basis of embodiment one
Structural reform enter after another technical scheme, the technical characteristic of the lung ventilator disclosed in embodiment one is also applied for the embodiment, implements
Description is not repeated in the technical characteristic of the published lung ventilator of example one.
Referring to shown in Fig. 3-Fig. 9, Fig. 3 is the dimensional structure diagram of the second housing provided in an embodiment of the present invention, and Fig. 4 is
The front view of second housing provided in an embodiment of the present invention；In order to more clearly show that structure, Fig. 3, Fig. 4 illustrate only second
The primary structure of housing, the upper lid of the second housing is not shown in the diagram；Fig. 5-Fig. 9 is the sectional view of the second housing shown in Fig. 4,
Wherein, Fig. 5 is the sectional view along A-A directions, and Fig. 6 is the sectional view along B-B directions, and Fig. 7 is the sectional view along C-C directions, Fig. 8
For along the sectional view in D-D directions, Fig. 9 is the sectional view along E-E directions；Wherein, Fig. 8, Fig. 9 dotted line are by outer cabin air outlet and expand
Chamber is pressed to divide.
Referring to shown in Fig. 3-Fig. 9, the lung ventilator that the present embodiment is provided is provided with outer cabin 101 and interior cabin in second shell body
102, interior cabin 102 is located inside outer cabin 101.
Outer cabin air inlet 1011 is provided between outer cabin 101 and interior 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.
Multiple splitters 103 are arranged at intervals along the cross-wise direction that gas flows, and are extended along gas flow direction.
Interior 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, flows to outer cabin air outlet 1012.
Second housing described in the present embodiment by setting multiple splitters 103 at the outer cabin air outlet 1012, with
Just the gas flow channel residing for splitter 103 is divided into multiple passages, adds the friction area of flowing gas, be greatly decreased
The central gas stream flow velocity of pure gas flow channel is very fast, air-flow velocity close to gas flow channel edge is slower asks
Topic, makes output gas be distributed in gas flow channel more uniform, and then flows through the gas of splitter 103 to flow along gas
Cross-wise direction flow velocity it is more uniform, and then improve essence of the lung ventilator to the detection of the pressure value of output gas and flow value
Exactness.
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 lung ventilator is higher to the accuracy of the detection of the pressure value of output gas and flow value；Preferably, splitter away from
Scope is 1.5mm-2.5mm, and on the one hand the splitter avoids splitter away from gas and splitter 103 can be made to reach optimum value
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 two 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 fixed in outer cabin air channel 1013, namely splitter
1013 points of outer cabin air channel residing for splitter 103 is multiple passages by 103；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, the noise produced during gas flowing can be reduced.
Further, outer cabin air inlet 1011 is fixedly connected with the fan outlet of blower fan, for example, 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 are by expanding
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
During through diffusion chamber 1014 change outbound course, because 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 there is one gradually
The process of expansion, so as to produce substantial amounts of vortex recirculation inside diffusion chamber 1014, forms whirlpool area, influence gas 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 pressure of lung ventilator output gas and the stability of flow.
Further, wind deflector 104 is parallel to splitter 103, in order to which preferably guiding gas discharges 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, the two ends close to multiple splitters 103 are respectively equipped with flow sensor hole 106；Multiple splitters 103 with it is outer
Pressure sensor hole 105 is provided between cabin air outlet 1012.After flow through bypass piece 103, the cross-wise direction flowed along gas
Flow velocity it is more uniform, so as to improve the pressure and flow detection of pressure sensor and flow sensor respectively to 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 can be greatly reduced because flow sensor hole 106 is blocked using the existing sensor with two measured holes
Caused error, so that the gas flow values of detection are more accurate；It is preferred that, flow sensor uses passive device, in order to
The installation and operation of flow sensor.
Further, the cross-wise direction flowed along gas, multiple splitters 103 are located at the length of middle splitter 103
Be shorter than positioned at both sides splitter 103 length, so as to flow through multiple passages of splitter 103 gas 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 two ends of splitter 103 are in circular arc, to reduce resistance of the splitter 103 to gas.
Gas flows into lung ventilator from the input port of lung ventilator in the present embodiment, by filter, flows into outer cabin air inlet,
Blower fan is flowed through, multiple splitters are passed through, the outer cabin air outlet is flowed to, flows through water tank, is exhaled from the delivery outlet outflow of lung ventilator
Suction machine.
Embodiment three
Embodiment three provides a kind of lung ventilator, and the embodiment is to breathing on the basis of embodiment one, embodiment two
Another technical scheme after the blower fan improvement of machine, the technical characteristic of the lung ventilator disclosed in embodiment one, embodiment two is also suitable
In the embodiment, description is not repeated in embodiment one, the technical characteristic of the published lung ventilator of embodiment two.
Referring to shown in Figure 10-Figure 17, the front view for the blower fan that Figure 10 provides for the present embodiment, Figure 11 is the vertical view of blower fan
Figure；Figure 12 is the front view of upper shell, and Figure 13 is the top view of upper shell；Figure 14 is the front view of lower house, and Figure 15 is lower casing
The top view of body；Figure 16 is the front view of impeller, and Figure 17 is the top view of impeller；In order to more clearly show that structure, Figure 10,
Figure 16 is sectional view.
Referring to shown in Figure 10-Figure 17, the blower fan that the present embodiment is provided, including Blower Housing 1, impeller 2 and motor 3；Blower fan
Air inlet 4 and fan outlet 5 are provided with housing 1.
Impeller 2 is located at the inside of Blower Housing 1, and close to air inlet 4.
The output shaft drive connection impeller 2 of motor 3, so that gas is along air inlet 4 towards the direction of fan outlet 5
Flowing.
It is gas flow space 11 in shell that the inside of Blower Housing 1, which is used to accommodate the space of gas,；Gas flowing is empty in shell
Between 11 ratio range of volume of volume and impeller 2 be 15-30.
Described in the present embodiment during blower fan work, the output shaft driving impeller 2 of motor 3 is rotated, and impeller 2 makes gas from blower fan
Air inlet 4 enters gas flow space 11 in shell, is then flowed out from fan outlet 5；With reference to the high speed rotating speed of motor 3, according to
Kinetic energy is converted to the principle of potential energy, the impeller 2 rotated at a high speed is accelerated gas, and then gas flows in the shell of certain volume
Slow down in space 11, change flow direction, kinetic energy is converted into potential energy, the potential energy is pressure energy；Wherein, gas flow space in shell
When the ratio range of 11 volume and the volume of impeller 2 is 15-30, the gas during blower fan work is exported from fan outlet 5
Pressure and flow more stablize, more conform to the requirement of needed by human body, especially meet patient to medicine equipments such as lung ventilators
Demand.
Gas flow space 11 also has the effect radiated to the motor 3 run at high speed in shell, extends motor 3
Service life, makes the service life of motor 3 be for more than 53000 hours.
Preferably, the ratio range of the volume of gas flow space 11 and the volume of impeller 2 is 20-24 in shell；The ratio
Gas is exported from fan outlet 5 when scope further increases the blower fan work pressure and the stability of flow, enter one
Step has met the requirement of needed by human body, especially meets demand of the patient to medicine equipments such as lung ventilators.
Wherein, motor 3 uses brushless electric machine, it is preferable that motor 3 uses brshless DC motor；The rotating speed of brushless electric machine is
6000rpm-20000rpm, is rotated so as to the output shaft high-speed driving impeller 2 of motor 3, forms the gas of suitable needed by human body
Output pressure and flow；Table one lists output pressure, the output stream of the rotating speed of part motor 3 and the fan outlet 5 of blower fan
Corresponding numerical value between amount.
One blower motor rotating speed of table and output pressure, output flow parameter
In the alternative of this implementation, air inlet 4 is axially arranged along impeller 2；Fan outlet 5 is along impeller 2
It is radially arranged；To be converted to the principle of potential energy according to kinetic energy, the impeller 2 using high speed rotation accelerates gas, and gas is from axle
To impeller 2 is entered, output is radially redirected when flowing through gas flow space 11 in impeller 2 and shell, because gas flowing is empty in shell
Between in 11 gas and changing flow direction further result in deceleration, and decelerating effect further converts kinetic energy into pressure energy, more
Plus be easy to form the pressure for meeting needed by human body and flow.
In the alternative of this implementation, conducting element 6 is provided with air inlet 4, conducting element 6 is outer with Blower Housing 1
Surface is fixedly connected；The axial direction of output shaft of the conducting element 6 along motor 3 helically wire.The conducting element 6 of zigzag shape can be more preferable
Ground guiding gas flows into air inlet 4, so that the entrance air inlet 4 of gas spiral, so that the inflow path of gas does not have
Have the turn of wide-angle, local eddy currents will not be produced, meet the movement locus of gas, can reduce gas flowing when produce make an uproar
Sound, additionally it is possible to which increase contacts air inflow with impeller 2.
In the alternative of this implementation, impeller 2 includes chassis 21 and the multiple blades 22 being arranged on chassis 21；Multiple leaves
Piece 22 is in uniform, arranged for interval around the center on chassis 21；It is easy to improve stability when impeller 2 rotates at a high speed, reduces Yin Ye
The noise that the rotation of wheel 2 is unstable and brings, also extends the service life of impeller 2.Preferably, blade 22 is ten；Preferably,
Blade 22 is formed in one with chassis 21, is easy to the production and processing of impeller 2.
Height of the blade 22 close to the one end at the center on chassis 21 is more than the height of the other end at the center away from chassis 21；
In order to which gas is flowed into shell in gas flow space 11 along blade 22.
Blade 22 is connected with chassis 21 in rounding off；To reduce the frictional force between impeller 2 and gas, and then reduce
The noise that gas is produced when flowing, and reduce the unnecessary energy consumption that gas is produced on the surface of impeller 2.
In the alternative of this implementation, the outer surface of Blower Housing 1 is installed with locating dowel 12 and shockproof positioning protrusion respectively
Rib 13；Shockproof positioning protrusion rib 13 is in a ring；The quantity of locating dowel 12 is 1 or multiple, for example can for 1,2,3
It is individual, 5 etc.；By setting locating dowel 12 and shockproof positioning protrusion rib 13, preferably to position, the blower fan is fixed, wind is reduced
The vibrations that machine is produced when working, so as to reduce the noise that vibrations are produced.
In the alternative of this implementation, Blower Housing 1 includes blower fan upper shell 14 and blower fan lower house 15, in order to blower fan
Assembling；Air inlet 4 is located on blower fan lower house 15, and fan outlet 5 is located at blower fan upper shell 14 and blower fan lower house
15 junction.
Blower fan upper shell 14 is evenly arranged with multiple locating dowels 12, and blower fan lower house 15 is provided with shockproof positioning protrusion rib
13；The bearing of trend of shockproof positioning protrusion rib 13 is consistent with the axial direction of locating dowel 12.Shockproof positioning protrusion rib 13 and positioning
Post 12 is correspondingly arranged on fan lower house 15 respectively, is made positioning, the fixed blower fan more accurate, is easy to reduce fanman
As when the vibrations that produce.
In the alternative of this implementation, blower fan upper shell 14 is fastened and connected with blower fan lower house 15 by buckle 7.Using card
Detain 7 formula connected modes fan lower house 15 be installed, it is to avoid using mode connects for screw because twist screw exert oneself it is too violent make junction
Cracking, stubborn screw kick the beam and caused poorly sealed；Installation during batch production is also convenient for, mounting process is simplified, can be made mostly
Number workman learns and installs out standard compliant product quickly；The error for each side occur drops to extremely low；Preferably, buckle 7
Quantity be four, be uniformly arranged on blower fan surrounding.
In the alternative of this implementation, blower fan upper shell 14 is provided with the groove 141 being adapted with motor 3, and motor 3 is fixed
In groove 141；To reduce the volume of the blower fan, it is easy to blower fan volume to minimize.
Shock absorber part (belong to prior art, figure not shown in) is provided between motor 3 and groove 141, to reduce during work
The noise produced between motor 3 and Blower Housing 1 by vibrations.The shock absorber part for example can be rubber blanket, silicagel pad, spring
Deng.
In the alternative of this implementation, the contact surface of blower fan upper shell 14 and blower fan lower house 15 is provided with seal groove (figure
Not shown in), seal groove extends along contact surface；Sealing ring (belong to prior art, figure not shown in) is provided with seal groove.It is logical
Crossing sealing ring prevents the pressure in Blower Housing 1 from being revealed by the connecting sewing between fan lower house 15, namely prevents blower fan
Gas in housing 1 is revealed by the connecting sewing between fan lower house 15, has ensured the pressure of the blower fan output gas
And flow.The material of the sealing ring is such as can be rubber, silica gel.
In the alternative of this implementation, the material of Blower Housing 1 is PC plastics.The blower fan used in the market is mostly
The materials such as ABS, ABS and PC mixture, metal are made, this blower fan use full PC materials upper lower casing, product highly transparent, just
In some failures, the problem that find blower fan；During flabellum problem as finding to have, or in flabellum or casing there is exception,
Eye observation can be used, without overhaul.
In the alternative of this implementation, the inner chamber of Blower Housing 1 is approximately straight for the inner chamber of vertical cyclindrical shape or Blower Housing 1
Cylindricality；That is the inner chamber of blower fan upper shell 14 and blower fan lower house 15 is vertical cyclindrical shape, or blower fan upper shell 14 and blower fan lower casing
The inner chamber of body 15 is approximately vertical cyclindrical shape；Namely the profile of gas flow space 11 is vertical cyclindrical shape or is approximately right cylinder in shell
Shape；To ensure in certain shell on the premise of gas flow space 11, the volume of reduction blower fan；To reduce gas in shell
The resistance of interior gas flow space 11.
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, or 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 (7)
1. a kind of lung ventilator, it is characterised in that including blower fan cabin and blower fan, the blower fan cabin includes the first housing and second shell
Body, the first shell is placed on second housing in vitro；
The blower fan is located in the second shell body, and is fixedly connected with second housing；
Damping device, and/or second housing and the blower fan are provided between first housing and second housing
Between be provided with damping device；
The damping device is damping cotton or damping rubber pad；
Outer cabin and interior cabin are provided with the second shell body, the interior freight space is inside the outer cabin；
Outer cabin air inlet is provided between the outer cabin and the interior 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 multiple splitter is arranged at intervals along the cross-wise direction that gas flows, and is extended along gas flow direction；
The interior cabin is used to fix blower fan, and it is described many 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, flows 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 two 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, sectional area of the sectional area more than the outer cabin air channel of the diffusion chamber, and the diffusion chamber
Sectional area is more than the sectional area of the outer cabin air outlet.
2. lung ventilator according to claim 1, it is characterised in that the damping device is damping sound insulation filter pulp.
3. lung ventilator according to claim 1, it is characterised in that first housing is included under first upper shell and first
Housing, the first upper shell and the first lower house are fastened and connected by buckle.
4. lung ventilator according to claim 1, it is characterised in that also including water tank, the water tank and first housing
It is fixedly connected；The water tank bottom is installed with electronics heating plate；The electronics heating plate is used to heat the liquid in the water tank；
The lung ventilator includes input port and delivery outlet；The blower fan is used to drive gas along the input port towards the output
The direction flowing of mouth；
The gas of the blower fan output flows through the liquid level top layer of the water tank, is flowed towards the direction of the delivery outlet；
The lung ventilator also includes filter, and the filter is close to the input port；The filter includes air
Filter membrane and/or fine filtration membrane.
5. lung ventilator according to claim 1, it is characterised in that the outer cabin is installed with pressure sensor hole and flow is passed
Sensor hole；Along the gas flow direction, the two ends close to the multiple splitter are respectively equipped with the flow sensor hole；Institute
State and the pressure sensor hole is provided between multiple splitters 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.
6. the lung ventilator according to claim any one of 1-5, it is characterised in that the blower fan includes Blower Housing, impeller
And motor；Air inlet and fan outlet are provided with the Blower Housing；
The impeller is located at the inside of the Blower Housing, and close to the air inlet；
Impeller described in the output shaft drive connection of the motor, so that the gas is along the air inlet towards the blower fan
The direction flowing of air outlet；
It is gas flow space in shell that the inside of the Blower Housing, which is used to accommodate the space of gas,；Gas flowing is empty in the shell
Between the ratio range of volume of volume and the impeller be 15-30.
7. lung ventilator according to claim 6, it is characterised in that axial direction of the air inlet along the impeller is set
Put；The fan outlet is radially arranged along the impeller；
Conducting element is provided with the air inlet, the conducting element is fixedly connected with the outer surface of the Blower Housing；Institute
State the axial direction of output shaft of the conducting element along the motor helically wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846430.XA CN105288808B (en) | 2015-11-27 | 2015-11-27 | Lung ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846430.XA CN105288808B (en) | 2015-11-27 | 2015-11-27 | Lung ventilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105288808A CN105288808A (en) | 2016-02-03 |
| CN105288808B true CN105288808B (en) | 2017-11-03 |
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ID=55187060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510846430.XA Active CN105288808B (en) | 2015-11-27 | 2015-11-27 | Lung ventilator |
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| Country | Link |
|---|---|
| CN (1) | CN105288808B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139345B (en) * | 2016-07-28 | 2019-06-11 | 湖南明康中锦医疗科技发展有限公司 | A kind of turbine box and ventilator |
| 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 |
| CN108591124A (en) * | 2018-06-29 | 2018-09-28 | 深圳融昕医疗科技有限公司 | The lung ventilator of blower fan apparatus and the application blower fan apparatus |
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| CN101321958A (en) * | 2005-12-09 | 2008-12-10 | 3M创新有限公司 | Portable blower system |
| CN104314843A (en) * | 2009-11-19 | 2015-01-28 | 瑞思迈发动机及马达技术股份有限公司 | Blower |
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| Publication number | Publication date |
|---|---|
| CN105288808A (en) | 2016-02-03 |
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