CN205252247U - Breathing machine - Google Patents
Breathing machine Download PDFInfo
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- CN205252247U CN205252247U CN201520964825.5U CN201520964825U CN205252247U CN 205252247 U CN205252247 U CN 205252247U CN 201520964825 U CN201520964825 U CN 201520964825U CN 205252247 U CN205252247 U CN 205252247U
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- housing
- blower fan
- lung ventilator
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- cabin
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Abstract
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a breathing machine is related to. This breathing machine, including fan cabin and fan, the fan cabin includes first casing and second casing, first casing overcoat in the second casing, the fan is located in the second casing, and with second casing fixed connection, first casing with be provided with damping device between the second casing, and/or the second casing with be provided with damping device between the fan. An object of the utility model is to provide a breathing machine to solve the great technical problem of noise who exists among the prior art.
Description
Technical field
The utility model relates to technical field of medical instruments, especially relates to a kind of lung ventilator.
Background technology
In current clinical medicine, lung ventilator is as the effective means of an energy artificial substituting expiratory positive airway pressure function, generalAll over the respiratory failure for due to a variety of causes, anesthesia respiration management during major operation, breathe supportive treatment and emergency resuscitationIn, in Modern Medical Field, occupy very important position. Lung ventilator is that one can play prevention and treatment respiratory failure,Reduce complication, save and extend the vital Medical Devices of patients ' lives.
But existing lung ventilator is by adopting in the inner high-speed fan, causes noise in use larger, impactPatient has a rest, and then affects patients ' recovery.
Utility model content
The purpose of this utility model is to provide a kind of lung ventilator, to solve the larger skill of noise existing in prior artArt problem.
The utility model provides a kind of lung ventilator, comprises blower fan cabin and blower fan, described blower fan cabin comprise the first housing andThe second housing, described the first housing is coated at described the second housing;
Described blower fan is positioned at described the second housing, and is fixedly connected with described the second housing;
Between described the first housing and described the second housing, be provided with damping device, and/or described the second housing with described inBetween blower fan, be provided with damping device.
Further, described damping device is damping cotton or damping rubber pad.
Further, described damping device is damping sound insulation filter pulp.
Further, described the first housing comprises the first upper shell and the first lower house, described the first upper shell and described inThe first lower house is fastened and connected by buckle.
Further, described lung ventilator also comprises water tank, and described water tank is fixedly connected with described the first housing; Described water tankBottom is installed with electrons heat plate; Described electrons heat plate is for heating the liquid in described water tank;
Described lung ventilator comprises input port and delivery outlet; Described blower fan be used for ordering about gas along described input port towards describedThe direction of delivery outlet flows;
The described gas flow of described blower fan output is through the liquid level top layer of described water tank, towards the direction stream of described delivery outletMoving;
Described lung ventilator also comprises filter, and described filter is near described input port; Described filter comprisesAir filter film and/or fine filtration membrane.
Further, be provided with He Nei cabin, outer cabin in described the second housing, described interior freight space is in inside, described outer cabin;
Between described outer cabin and described interior cabin, be provided with outer cabin air inlet, described outer cabin is also provided with outer cabin air outlet;
In described outer cabin, be installed with multiple splitters; Described multiple splitter is near described outer cabin air outlet;
Described multiple splitter arranges along the cross-wise direction interval of gas flow, and extends along gas flow direction;
Described interior cabin is for fixing blower fan, and described blower fan is used for making in this blower fan gas cabin air inlet from described institute that flows throughState multiple splitters, flow to described outer cabin air outlet.
Further, the splitter between adjacent described splitter is apart from equating; The length of described splitter and described shuntingThe ratio of a pitch of fins is greater than 10, and described splitter is 1.5mm-2.5mm apart from scope.
Further, described outer cabin is installed with pressure sensor hole and flow sensor hole; Along described gas flow direction,Two ends near described multiple splitters are respectively equipped with described flow sensor hole; Described multiple splitter and described outer cabin air-outBetween mouthful, be provided with described pressure sensor hole;
Described pressure sensor hole is used for being communicated with pressure sensor; Described flow sensor hole is used for being communicated with flow sensingDevice.
Further, described blower fan comprises Blower Housing, impeller and motor; On described Blower Housing, be provided with blower fan air intakeMouth and fan outlet;
Described impeller is positioned at the inside of described Blower Housing, and near described air inlet;
The output shaft of described motor drives and connects described impeller so that described gas along described air inlet towards describedThe direction of fan outlet flows;
The inside of described Blower Housing is gas flow space in shell for holding the space of gas; Gas flow in described shellThe ratio range of the moving volume in space and the volume of described impeller is 15-30.
Further, described air inlet is along the axial setting of described impeller; Described fan outlet is along described impellerRadially setting;
Described air inlet place is provided with conducting element, the fixing company of outer surface of described conducting element and described Blower HousingConnect; Described conducting element is axially zigzag shape along the output shaft of described motor.
The lung ventilator that the utility model provides, is set to inside and outside two-layer housing by blower fan cabin, i.e. the first housing and theTwo housings, and be provided with between damping device and/or the second housing and blower fan and be provided with between the first housing and the second housingDamping device, to reduce the vibrations of blower fan and the noise of its generation of High Rotation Speed, produces thereby reduce Use of respirator processNoise, reduced the lung ventilator impact on patient in use.
Brief description of the drawings
In order to be illustrated more clearly in the utility model detailed description of the invention or technical scheme of the prior art, below by rightIn detailed description of the invention or description of the Prior Art, the accompanying drawing of required use is briefly described, and apparently, the following describesIn accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativenessUnder the prerequisite of work, can also obtain according to these accompanying drawings other accompanying drawing.
The front view of the lung ventilator that Fig. 1 provides for the utility model embodiment mono-;
Fig. 2 is the cutaway view of the lung ventilator shown in Fig. 1;
The perspective view of the second housing of the lung ventilator that Fig. 3 provides for the utility model embodiment bis-;
The front view of the second housing of the lung ventilator that Fig. 4 provides for the utility model embodiment bis-;
Fig. 5 is the cutaway view along A-A direction of the second housing shown in Fig. 4;
Fig. 6 is the cutaway view along B-B direction of the second housing shown in Fig. 4;
Fig. 7 is the cutaway view along C-C direction of the second housing shown in Fig. 4;
Fig. 8 is the cutaway view along D-D direction of the second housing shown in Fig. 4;
Fig. 9 is the cutaway view along E-E direction of the second housing shown in Fig. 4;
The front view of the blower fan of the lung ventilator that Figure 10 provides for the utility model embodiment tri-;
The top view of the blower fan of the lung ventilator that Figure 11 provides for the utility model embodiment tri-;
The front view of the blower fan upper shell of the blower fan of the lung ventilator that Figure 12 provides for the utility model embodiment;
Figure 13 is the top view of the blower fan upper shell shown in Figure 12;
The front view of the blower fan lower house of the blower fan of the lung ventilator that Figure 14 provides for the utility model embodiment;
Figure 15 is the top view of the blower fan lower house shown in Figure 14;
The front view of the impeller of the blower fan of the lung ventilator that Figure 16 provides for the utility model embodiment;
Figure 17 is the top view of the impeller shown in Figure 16.
Reference numeral:
201-blower fan cabin; 202-blower fan; 203-the first housing;
2031-the first upper shell; 2032-the first lower house;
204-the second housing; 205-water tank; 206-input port;
207-delivery outlet; 208-filter;
The outer cabin of 101-; The outer cabin of 1011-air inlet;
The outer cabin of 1012-air outlet; Air channel, the outer cabin of 1013-; 1014-diffusion chamber;
Cabin in 102-; 103-splitter; 104-wind deflector;
105-pressure sensor hole; 106-flow sensor hole;
1-Blower Housing; Gas flow space in 11-shell; 12-locating dowel;
13-protrudes rib in shockproof location; 14-blower fan upper shell; 141-groove;
15-blower fan lower house; 2-impeller; 21-chassis;
22-blade; 3-motor; 4-air inlet;
5-fan outlet; 6-conducting element 7-buckle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, obviously, describedEmbodiment is the utility model part embodiment, instead of whole embodiment. Based on the embodiment in the utility model, thisField those of ordinary skill, not making the every other embodiment obtaining under creative work prerequisite, all belongs to this practicalityNovel protected scope.
In description of the present utility model, it should be noted that term " " center ", " on ", D score, " left side ", " right side ", " perpendicularDirectly ", orientation or the position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, be onlyThe utility model and simplified characterization for convenience of description, instead of device or the element of instruction or hint indication must have specificOrientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model. In addition term ",One ", " second ", " the 3rd " be only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " peaceDress ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integratedlyConnect; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary,It can be the connection of two element internals. For the ordinary skill in the art, can concrete condition understand above-mentioned artThe concrete meaning of language in the utility model.
Embodiment mono-
Shown in Fig. 1, Fig. 2, the present embodiment provides a kind of lung ventilator; Fig. 1 provides for the utility model embodimentThe front view of lung ventilator, Fig. 2 is the cutaway view of the lung ventilator shown in Fig. 1, wherein, is shown in broken lines blower fan cabin in Fig. 1.
Shown in Fig. 1, Fig. 2, the lung ventilator that the present embodiment provides, comprises blower fan cabin 201 and blower fan 202, blower fan cabin 201Comprise that the first housing 203 and the second housing 204, the first housings 203 are coated at the second housing 204.
Blower fan 202 is positioned at the second housing 204, and is fixedly connected with the second housing 204.
Between the first housing 203 and the second housing 204, be provided with damping device (not shown), and/or the second housing204 and blower fan 202 between be provided with damping device. Optionally, between the first housing 203 and the second housing 204, be provided with dampingDevice, or, between the second housing 204 and blower fan 202, be provided with damping device, or, the first housing 203 and the second housingBetween 204, be provided with between damping device and the second housing 204 and blower fan 202 and be provided with damping device.
Lung ventilator described in the present embodiment is by being set to blower fan cabin 201 inside and outside two-layer housing, i.e. the first housing 203 HesThe second housing 204, and between the first housing 203 and the second housing 204, be provided with damping device and/or the second housing 204 withBetween blower fan 202, be provided with damping device, to reduce the vibrations of blower fan 202 and the noise of its generation of High Rotation Speed, thereby fallThe noise that low Use of respirator process produces, has reduced the lung ventilator impact on patient in use.
Wherein, damping device is damping cotton or damping rubber pad. By damping cotton or damping rubber pad to eliminate or to subtractSlow blower fan 202 shakes, thereby reduces the noise that Use of respirator process produces.
Preferably, damping device is damping sound insulation filter pulp, and damping sound insulation filter pulp adopts electric wave shape, so that same in dampingTime can also sound insulation, further reduced the noise of blower fan 202. Preferably, between the first housing 203 and the second housing 204, withAnd second be provided with damping sound insulation filter pulp between housing 204 and blower fan 202. This damping sound insulation filter pulp can make lung ventilator in entiretyPressure, lower than 10cmH2O-20cmH2O, in the situation of the about 140L/min of flow, makes noise reduce to 27DB by 30DB.
In the possibility of the present embodiment, the first housing 203 comprises the first upper shell 2031 and the first lower house 2032, theOne upper shell 2031 and the first lower house 2032 are fastened and connected by buckle. Adopt buckle-type connected mode that the first upper shell is installed2031 and first lower house 2032, avoid employing screw to connect because twisting screw and firmly too suddenly made junction cracking, twist screwKick the beam and cause poorly sealed; Installation while being also convenient to produce in batches, has simplified mounting process, can make most of workmans learn very soonMeeting is also installed out standard compliant product; The error that each side is occurred drops to extremely low; Thereby make the first housing 203, the second shellThe 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 reduce and exhaleThe vibratory sensation of suction machine.
In the possibility of the present embodiment, described lung ventilator also comprises water tank 205, and water tank 205 and the first housing 203 are fixingConnect; Water tank 205 bottoms are installed with electrons heat plate (belonging to prior art, not shown), and electrons heat plate is for heatingLiquid in water tank 205, to promote the temperature of liquid.
Lung ventilator comprises input port 206 and delivery outlet 207; Blower fan 202 for order about gas along input port 206 towards outputThe direction of mouth 207 flows.
The gas flow that blower fan 202 is exported, through the liquid level top layer of water tank 205, flows towards the direction of delivery outlet 207; Water tankLiquid in 205 is after the heating of electrons heat plate, and liquid level top layer forms the steam with uniform temperature, the gas that blower fan 202 is exportedAfter the exchange of body and this steam, temperature and humidity that can lift gas, thereby make lung ventilator output meet human body requirements, haveThe gas of temperature and humidity, has reduced the sense of discomfort of the gas dry, temperature is lower to patient. This liquid is generally water, also canTo make as required this liquid as other solution, to meet different patients' demand.
Lung ventilator also comprises filter 208, and filter 208 is near input port 206, to filter input port 206Gas; Filter 208 comprises air filter film and/or fine filtration membrane. Preferably, filter 208 comprises air filter film and essenceFine filtering film, by above-mentioned filter design, so that the air filtration dust quantity of the machine that ensures respiration reaches 97%.
Embodiment bis-
Embodiment bis-provides a kind of lung ventilator, and this embodiment is the second shell to lung ventilator on the basis of embodiment mono-Another technical scheme after structural reform is entered, the technical characterictic of embodiment mono-disclosed lung ventilator is also applicable to this embodiment, implementsThe technical characterictic of example one published lung ventilator is no longer repeated in this description.
Shown in Fig. 3-Fig. 9, the perspective view of the second housing that Fig. 3 provides for the utility model embodiment,The front view of the second housing that Fig. 4 provides for the utility model embodiment; For display structure more clearly, Fig. 3, Fig. 4 are onlyShow the primary structure of the second housing, the upper cover of the second housing is not shown in the diagram; Fig. 5-Fig. 9 is the second shell shown in Fig. 4The cutaway view of body, wherein, Fig. 5 is the cutaway view along A-A direction, and Fig. 6 is the cutaway view along B-B direction, and Fig. 7 is along C-C directionCutaway view, Fig. 8 is the cutaway view along D-D direction, Fig. 9 is the cutaway view along E-E direction; Wherein, outside Fig. 8, Fig. 9 incite somebody to action with dotted lineCabin air outlet and diffusion chamber are divided.
Shown in Fig. 3-Fig. 9, the lung ventilator that the present embodiment provides, is provided with 101He Nei cabin, outer cabin in the second housing102, interior cabin 102 is positioned at 101 inside, outer cabin.
Between 101Yu Nei cabin, outer cabin 102, be provided with outer cabin air inlet 1011, outer cabin 101 is also provided with outer cabin air outlet1012。
In outer cabin 101, be installed with multiple splitters 103; Multiple splitters 103 are near outer cabin air outlet 1012.
Multiple splitters 103 arrange along the cross-wise direction interval of gas flow, and extend along gas flow direction.
Interior cabin 102 is for fixing blower fan, and blower fan is used for making in blower fan gas from outer cabin air inlet 1011 multiple shuntings of flowing throughSheet 103, flows to outer cabin air outlet 1012.
The second housing described in the present embodiment is by near outer cabin air outlet 1012 places, multiple splitters 103 being set, withJust residing splitter 103 gas flow channel is divided into multiple passages, has increased the friction area of flowing gas, significantly reduceThe central gas stream flow velocity of pure gas flow channel very fast, near slower the asking of air-flow velocity at gas flow channel edgeTopic, makes to export gas and in gas flow channel, distributes more evenly, and then the gas of the splitter 103 that makes to flow through is along gas flowThe flow velocity of cross-wise direction more even, and then improved the essence of lung ventilator to the output force value of gas and the detection of flow valueExactness.
Further, the splitter between adjacent splitter 103 is apart from equating; The length of splitter 103 and splitter distanceRatio is greater than 10, and the gas that this ratio has further improved the splitter 103 of flowing through is along the flow velocity of the cross-wise direction of gas flowThe uniformity, so that lung ventilator is higher to the accuracy of the output force value of gas and the detection of flow value; Preferably, splitter distanceScope is 1.5mm-2.5mm, and this splitter, apart from making gas and splitter 103 reach optimum value, has been avoided splitter on the one handThe distance of distance is too little and increase by the resistance of the air-flow of splitter 103, and then force value and the flow of impact to output gasThe accuracy of the detection of value, has also avoided the distance of splitter distance can not reach by splitter 103 phases too greatly on the other handTo uniform distribution output gas flow, and then the accuracy of impact to the output force value of gas and the detection of flow value.
Preferably, the ratio range of the length of splitter 103 and splitter distance is 10-20. Further to optimize, to improve streamThe uniformity through the gas of splitter 103 along the flow velocity of the cross-wise direction of gas flow, so that the pressure of lung ventilator to output gasThe accuracy of the detection of power value and flow value.
The quantity of splitter 103 can be for example two, three, four, six, eight etc.; The present embodiment optionalIn scheme, the quantity of splitter 103 is three, to residing splitter 103 gas flow channel is divided into four passages.
In the possibility of the present embodiment, outer cabin 101 comprises air channel, outer cabin 1013, and establish respectively at the two ends in air channel, outer cabin 1013Put outer cabin air inlet 1011 and outer cabin air outlet 1012; Multiple splitters 103 are installed in air channel, outer cabin 1013, are also splitterAir channel, residing splitter 103 outer cabin 1013 is divided into multiple passages by 103; Air channel, outer cabin 1013 is zigzag shape, so that gasThe outer cabin of the discharge air outlet 1012 of spiral, so that the outflow path of gas does not have turning round of wide-angle, can not produce local eddy currents,Meet the movement locus of gas, the noise producing when gas flow 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 intakeMouth 1011 passes through tube connector fixed seal connection with the fan outlet of blower fan; Outer cabin air outlet 1012 be axially perpendicular to outer cabinAir inlet 1011 axially; 101 inside, outer cabin are provided with diffusion chamber 1014, and air channel, outer cabin 1013 and outer cabin air outlet 1012 are by expandingPress chamber 1014 to be communicated with, gas flow flows out from fan outlet, flows into air channel, outer cabin 1013, stream by outer cabin air inlet 1011Through multiple splitters 103, flow into diffusion chamber 1014, flow out from outer cabin air outlet 1012; Along gas flow direction, diffusion chamber 1014Sectional area be greater than the sectional area in air channel, outer cabin 1013, and the sectional area in diffusion chamber 1014 is greater than cutting of outer cabin air outlet 1012Area. To be converted to the principle of potential energy according to kinetic energy, utilize the gas of the High Rotation Speed of exporting from outer cabin air inlet 1011, streamIn the time of diffusion chamber 1014, change outbound course, because of at diffusion chamber 1014 interior gas and changings flow direction cause deceleration, and subtractThe kinetic energy that speed effect has the gas of High Rotation Speed converts pressure energy to, thereby offsets or reduce gas in output procedureThe pressure loss.
In the time that the gas of the High Rotation Speed of exporting from outer cabin air inlet 1011 flows into diffusion chamber 1014, flow section expands suddenlyGreatly, due to the inertia of fluid, can not expand to suddenly on whole cross section along the shape in diffusion chamber 1014, but have one graduallyThe process of expansion, thus reflux at the diffusion chamber 1014 a large amount of vortex of inner generation, form whirlpool district, affect gas and go out from outer cabinDischarge in air port 1012, and then affect the lung ventilator output pressure of gas and the stability of flow; In order to address this problem, this enforcementIn the possibility of example, in diffusion chamber 1014, be installed with wind deflector 104; Wind deflector 104 is near air outlet 1012 places, outer cabin, and edgeThe tangential extension of outer cabin air outlet 1012, so that by wind deflector 104, and coordinates splitter 103, by the gas of High Rotation SpeedAir-flow be divided into multiple regions, guiding gas is discharged outer cabin air outlet 1012, reduces the scale in whirlpool district, and then minimizing whirlpool districtTo the output pressure of gas and the stability of flow, thereby improve the lung ventilator output pressure of gas and the stability of flow.
Further, wind deflector 104 is parallel to splitter 103, so that better guide gas to discharge outer cabin air outlet1012。
In the possibility of the present embodiment, outer cabin 101 is installed with pressure sensor hole 105 and flow sensor hole 106; EdgeGas flow direction, is respectively equipped with flow sensor hole 106 near the two ends of multiple splitters 103; Multiple splitters 103 are with outerBetween cabin air outlet 1012, be provided with pressure sensor hole 105. Gas flow is after splitter 103, along the cross-wise direction of gas flowFlow velocity more even, thereby improved pressure sensor and flow sensor pressure and the flow detection to output gas respectivelyAccuracy; Preferably, pressure sensor hole 105 and flow sensor hole 106 are positioned at air channel, outer cabin 1013.
Pressure sensor hole 105 is for being communicated with pressure sensor; Flow sensor hole 106 is for being communicated with flow sensor.Flow sensor adopts the existing sensor with two measured holes, can greatly reduce because flow sensor hole 106 is stopped upThe error causing, so that the gas flow value detecting is more accurate; Preferably, flow sensor adopts passive device, so thatThe installation of flow sensor and operation.
Further, along the cross-wise direction of gas flow, the length of the splitter 103 in the middle of multiple splitters 103 are positioned atBe shorter than the length of the splitter 103 that is positioned at both sides, so that the effect that the gas of multiple splitter 103 passages of flowing through can more can be goodIn pressure sensor and flow sensor, and then improve its accuracy of detection; Preferably, along the cross-wise direction of gas flow, multipleSplitter 103 is symmetrical set, and pressure sensor hole 105 and flow sensor hole 106 lay respectively on this line of symmetry; Along gasFlow direction, the two ends of splitter 103 are circular arc, to reduce the resistance of splitter 103 to gas.
In the present embodiment, gas flows into lung ventilator from the input port of lung ventilator, through filter, flows into outer cabin air inlet,The blower fan of flowing through, more multiple splitters of flowing through, flow to described outer cabin air outlet, and the water tank of flowing through flows out and exhales from the delivery outlet of lung ventilatorSuction machine.
Embodiment tri-
Embodiment tri-provides a kind of lung ventilator, and this embodiment is to breathing on the basis of embodiment mono-, embodiment bis-Another technical scheme after the blower fan of machine improves, the technical characterictic of embodiment mono-, embodiment bis-disclosed lung ventilators is also suitable forIn this embodiment, the technical characterictic of embodiment mono-, embodiment bis-published lung ventilators is no longer repeated in this description.
Shown in Figure 10-Figure 17, the front view of the blower fan that Figure 10 provides for the present embodiment, what Figure 11 was blower fan overlooksFigure; Figure 12 is the front view of upper shell, the top view that Figure 13 is upper shell; Figure 14 is the front view of lower house, and Figure 15 is lower casingThe top view of body; Figure 16 is the front view of impeller, the top view that Figure 17 is impeller; For display structure more clearly, Figure 10,Figure 16 is cutaway view.
Shown in Figure 10-Figure 17, the blower fan that the present embodiment provides, comprises Blower Housing 1, impeller 2 and motor 3; Blower fanOn housing 1, be provided with air inlet 4 and fan outlet 5.
Impeller 2 is positioned at the inside of Blower Housing 1, and near air inlet 4.
The output shaft of motor 3 drives and connects impeller 2 so that gas along air inlet 4 direction towards fan outlet 5Flow.
The inside of Blower Housing 1 is gas flow space 11 in shell for holding the space of gas; Gas flow sky in shellBetween the ratio range of volume of 11 volume and impeller 2 are 15-30.
When the work of blower fan described in the present embodiment, the output shaft drives impeller 2 of motor 3 is rotated, and impeller 2 makes gas from blower fanAir inlet 4 enters gas flow space 11 in shell, then flows out from fan outlet 5; In conjunction with the high speed rotating speed of motor 3, according toKinetic energy is converted to the principle of potential energy, the impeller 2 of High Rotation Speed is accelerated gas, then gas flow in the shell of certain volumeThe interior deceleration in space 11, change flow to, and make kinetic energy convert potential energy to, and this potential energy is pressure energy; Wherein, gas flow space in shellWhen the ratio range of the volume of 11 volume and impeller 2 is 15-30, gas when this blower fan work is exported from fan outlet 5Pressure and flow more stable, more meet the requirement of needed by human body, especially meet patient to medicine equipments such as lung ventilatorsDemand.
Gas flow space 11 also has the effect of dispelling the heat to the motor 3 running up in shell, has extended motor 3In service life, make be more than 53000 hours the service life of motor 3.
Preferably, in shell, the ratio range of the volume of gas flow space 11 and the volume of impeller 2 is 20-24; This ratioThe pressure that when scope has further improved described blower fan work, gas is exported from fan outlet 5 and the stability of flow, enter oneStep has met the requirement of needed by human body, especially meets the demand of patient to medicine equipments such as lung ventilators.
Wherein, motor 3 adopts brushless electric machine, and preferably, motor 3 adopts brshless DC motor; The rotating speed of brushless electric machine is6000rpm-20000rpm, so that the output shaft high-speed driving impeller 2 of motor 3 rotates, the gas of the applicable needed by human body of formationOutput pressure and flow; Table one has been listed output pressure, the output stream of the rotating speed of part motor 3 and the fan outlet of blower fan 5Corresponding numerical value between amount.
This blower motor of table one rotating speed and output pressure, output flow parameter
In the possibility of this enforcement, air inlet 4 is along the axial setting of impeller 2; Fan outlet 5 is along impeller 2Radially arrange; To be converted to the principle of potential energy according to kinetic energy, utilize the impeller 2 of High Rotation Speed that gas is accelerated, gas is from axleTo entering impeller 2, while flowing through the interior gas flow space 11 of impeller 2 and shell, change over radially output, because of gas flow sky in shellBetween 11 interior gas and changings flow direction further cause deceleration, and decelerating effect further converts kinetic energy to pressure energy, moreAdd and be convenient to form the pressure and the flow that meet needed by human body.
In the possibility of this enforcement, air inlet 4 places are provided with conducting element 6, outside conducting element 6 and Blower Housing 1Surface is fixedly connected with; Conducting element 6 is axially zigzag shape along the output shaft of motor 3. The conducting element 6 of zigzag shape can be betterGuiding gas flow in ground enters air inlet 4 so that gas spiral enter air inlet 4 so that the inflow path of gas does not haveHave turning round of wide-angle, can not produce local eddy currents, meet the movement locus of gas, what can reduce gas flow time, produce makes an uproarSound, can also increase with impeller 2 and contact air inflow.
In the possibility of this enforcement, impeller 2 comprises chassis 21 and is arranged on the multiple blades 22 on chassis 21; Multiple leavesSheet 22 is evenly around 21 center, chassis, interval is arranged; Stability while being convenient to improve impeller 2 High Rotation Speed, has reduced Yin YeWheel 2 rotates noise unstable and that bring, has also extended the service life of impeller 2. Preferably, blade 22 is ten; Preferably,Blade 22 is formed in one with chassis 21, is convenient to the production and processing of impeller 2.
Blade 22 is greater than the height away from the other end at 21 center, chassis near the height of the one end at 21 center, chassis;So that gas flows in shell in gas flow space 11 along blade 22.
Blade 22 is rounding off with chassis 21 and is connected; To reduce the frictional force between impeller 2 and gas, and then reduceThe noise producing when gas flow, and reduce the unnecessary energy consumption that gas produces on impeller 2 surfaces.
In the possibility of this enforcement, the outer surface of Blower Housing 1 is installed with respectively locating dowel 12 and protrude shockproof locationRib 13; Rib 13 is protruded ringwise in shockproof location; The quantity of locating dowel 12 is 1 or multiple, for example, can be 1,2,3Individual, 5 etc.; Protrude rib 13 by locating dowel 12 and shockproof location are set, better to locate, to fix described blower fan, reduce windThe vibrations that produce when machine work, thus the noise that vibrations produce reduced.
In the possibility of this enforcement, Blower Housing 1 comprises blower fan upper shell 14 and blower fan lower house 15, so that blower fanAssembling; Air inlet 4 is positioned on blower fan lower house 15, and fan outlet 5 is positioned at blower fan upper shell 14 and blower fan lower house15 junction.
Blower fan upper shell 14 is evenly provided with multiple locating dowels 12, and blower fan lower house 15 is provided with shockproof location and protrudes rib13; The bearing of trend of shockproof location protrusion rib 13 is consistent with the axial direction of locating dowel 12. Rib 13 and location are protruded in shockproof locationPost 12 respectively correspondence is arranged on fan lower house 15, makes location, fixing described blower fan more accurate, is convenient to reduce fanmanThe vibrations that produce while work.
In the possibility of this enforcement, blower fan upper shell 14 is fastened and connected by buckle 7 with blower fan lower house 15. Adopt cardDetain 7 formula connected modes and install blower fan lower house 15, avoided employing screw to connect because twisting screw and firmly too suddenly made junctionCracking, stubborn screw kick the beam and cause poorly sealed; Installation while being also convenient to produce in batches, has simplified mounting process, can make mostlyNumber workman learns and installs out standard compliant product very soon; The error that each side is occurred drops to extremely low; Preferably, buckle 7Quantity be four, be evenly arranged on blower fan surrounding.
In the possibility of this enforcement, blower fan upper shell 14 is provided with the groove 141 adapting with motor 3, and motor 3 is fixingBe arranged in groove 141; To reduce the volume of described blower fan, be convenient to the miniaturization of blower fan volume.
Between motor 3 and groove 141, be provided with shock absorber part (belonging to prior art, not shown), when reducing workThe noise producing because of vibrations between motor 3 and Blower Housing 1. Described shock absorber part can be for example rubber blanket, silicagel pad, springDeng.
In the possibility of this enforcement, blower fan upper shell 14 is provided with seal groove (figure with the contact-making surface of blower fan lower house 15In not shown), seal groove extends along contact-making surface; In seal groove, be provided with sealing ring (belonging to prior art, not shown). LogicalCross sealing ring and prevent that the pressure in Blower Housing 1 from passing through the connecting sewing leakage between fan lower house 15, also prevent blower fanGas in housing 1 is revealed by the connecting sewing between fan lower house 15, has ensured the pressure of described blower fan output gasAnd flow. The material of described sealing ring can be for example rubber, silica gel etc.
In the possibility of this enforcement, the material of Blower Housing 1 is PC plastics. The blower fan adopting is in the market mostlyThe material such as mixture, metal of ABS, ABS and PC is made, and this blower fan adopts the upper lower casing of full PC material, product highly transparent, justIn some faults, the problem of finding blower fan; As when flabellum problem finding that there is, or in flabellum or casing, have abnormal,Can observe with eyes, without overhaul.
In the possibility of this enforcement, the inner chamber of Blower Housing 1 is that the inner chamber of vertical cyclindrical shape or Blower Housing 1 is approximately straightCylindricality; The inner chamber that is 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 casingThe inner chamber of body 15 is all approximately vertical cyclindrical shape; Also be that in shell, the profile of gas flow space 11 is vertical cyclindrical shape or is approximately right cylinderShape; To under the prerequisite of gas flow space 11, reduce the volume of blower fan in the certain shell of guarantee; To reduce gas at shellThe resistance of interior gas flow space 11.
Finally it should be noted that: above each embodiment is only in order to the technical solution of the utility model to be described, but not to its limitSystem; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art shouldUnderstand: its technical scheme that still can record aforementioned each embodiment is modified, or to wherein some or all ofTechnical characterictic is equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from this practicality newlyThe scope of the each embodiment technical scheme of type.
Claims (10)
1. a lung ventilator, is characterized in that, comprises blower fan cabin and blower fan, and described blower fan cabin comprises the first housing and the second shellBody, described the first housing is coated at described the second housing;
Described blower fan is positioned at described the second housing, and is fixedly connected with described the second housing;
Between described the first housing and described the second housing, be provided with damping device, and/or described the second housing and described blower fanBetween be provided with damping device.
2. lung ventilator according to claim 1, is characterized in that, described damping device is damping cotton or damping rubber pad.
3. lung ventilator according to claim 1, is characterized in that, described damping device is damping sound insulation filter pulp.
4. lung ventilator according to claim 1, is characterized in that, described the first housing comprises the first upper shell and first timeHousing, described the first upper shell and described the first lower house are fastened and connected by buckle.
5. lung ventilator according to claim 1, is characterized in that, also comprises water tank, described water tank and described the first housingBe fixedly connected with; Described water tank bottom is installed with electrons heat plate; Described electrons heat plate is for heating the liquid in described water tank;
Described lung ventilator comprises input port and delivery outlet; Described blower fan be used for ordering about gas along described input port towards described outputThe direction of mouth flows;
The described gas flow of described blower fan output, through the liquid level top layer of described water tank, flows towards the direction of described delivery outlet;
Described lung ventilator also comprises filter, and described filter is near described input port; Described filter comprises airFilter membrane and/or fine filtration membrane.
6. according to the lung ventilator described in claim 1-5 any one, it is characterized in that, in described the second housing, be provided with outer cabin andInterior cabin, described interior freight space is in inside, described outer cabin;
Between described outer cabin and described interior cabin, be provided with outer cabin air inlet, described outer cabin is also provided with outer cabin air outlet;
In described outer cabin, be installed with multiple splitters; Described multiple splitter is near described outer cabin air outlet;
Described multiple splitter arranges along the cross-wise direction interval of gas flow, and extends along gas flow direction;
Described interior cabin is for fixing blower fan, and described blower fan is used for making gas cabin air inlet from described in this blower fan to flow through described manyIndividual splitter, flows to described outer cabin air outlet.
7. lung ventilator according to claim 6, is characterized in that, the splitter between adjacent described splitter is apart from equating;The ratio of the length of described splitter and described splitter distance is greater than 10, and described splitter is 1.5mm-2.5mm apart from scope.
8. lung ventilator according to claim 7, is characterized in that, described outer cabin is installed with pressure sensor hole and flow passesSensor hole; Along described gas flow direction, be respectively equipped with described flow sensor hole near the two ends of described multiple splitters; InstituteState between multiple splitters and described outer cabin air outlet and be provided with described pressure sensor hole;
Described pressure sensor hole is used for being communicated with pressure sensor; Described flow sensor hole is used for being communicated with flow sensor.
9. lung ventilator according to claim 5, is characterized in that, described blower fan comprises Blower Housing, impeller and motor; InstituteState and on Blower Housing, be provided with air inlet and fan outlet;
Described impeller is positioned at the inside of described Blower Housing, and near described air inlet;
The output shaft of described motor drives and connects described impeller so that described gas along described air inlet towards described blower fanThe direction of air outlet flows;
The inside of described Blower Housing is gas flow space in shell for holding the space of gas; Gas flow sky in described shellBetween volume and the ratio range of the volume of described impeller be 15-30.
10. lung ventilator according to claim 9, is characterized in that, described air inlet is axially established along described impellerPut; Described fan outlet is along the radially setting of described impeller;
Described air inlet place is provided with conducting element, and described conducting element is fixedly connected with the outer surface of described Blower Housing; InstituteState conducting element and be axially zigzag shape along the output shaft of described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964825.5U CN205252247U (en) | 2015-11-27 | 2015-11-27 | Breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964825.5U CN205252247U (en) | 2015-11-27 | 2015-11-27 | Breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205252247U true CN205252247U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520964825.5U Expired - Fee Related CN205252247U (en) | 2015-11-27 | 2015-11-27 | Breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205252247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105288808A (en) * | 2015-11-27 | 2016-02-03 | 吉林省沃鸿医疗器械制造有限公司 | Breathing machine |
-
2015
- 2015-11-27 CN CN201520964825.5U patent/CN205252247U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105288808A (en) * | 2015-11-27 | 2016-02-03 | 吉林省沃鸿医疗器械制造有限公司 | Breathing machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160525 Termination date: 20211127 |