CN104689442A - Portable ventilator - Google Patents
Portable ventilator Download PDFInfo
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- CN104689442A CN104689442A CN201510129347.0A CN201510129347A CN104689442A CN 104689442 A CN104689442 A CN 104689442A CN 201510129347 A CN201510129347 A CN 201510129347A CN 104689442 A CN104689442 A CN 104689442A
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Abstract
The invention discloses a portable ventilator. The portable ventilator comprises a shell, a draught fan box (101), a cut-off device (108) and a control device (113) are arranged in the shell, a draught fan (8) is mounted in the draught fan box (101) through a noise reducing device, an air outlet of the draught fan is connected with an interior breathing tube (107), the cut-off device (108) is arranged on the interior breathing tube (107), a sensor is arranged in the cut-off device (108), the sensor is connected with the control device (113), a humidifying device (106) is arranged in the shell, an air outlet of the cut-off device (108) is connected with the humidifying device (106) through the interior breathing tube (107), and the air outlet of the humidifying device is connected with a breathing tube (104) and a mask (105). The noise of the ventilator is low, and the breathing gas parameters can be precisely detected for realizing anti-backflow for 360 degrees.
Description
Technical field
The present invention relates to respirator field, be specifically related to a kind of portable respirator.
Background technology
Domestic sleep type respirator is mainly used among individual family, Sleeping Center and mini clinic, mainly for the patient with apnea syndrome.Respirator pressurizes to the gas in pipeline by blower fan, blower fan inevitably sends noise in the course of the work, because patient reduces the threshold of tolerance of sound, and these sound are to the single repetitive stimulation of patient, patient can not be distinguished round the clock, and therefore respirator noise is very large to the pessimal stimulation of patient.How by noise control in minimum zone, do not affect patient's sleep be each respirator manufacturer will faced by key subjects.
Fan noise is mainly divided into two kinds, and one is blower fan quick rotation, the wind whistle that blade and windage produce, and a kind of vibrations being the reason such as blower fan own rotation and placement and causing, collide generation noise mutually with miscellaneous part in vibrations process.The former is much larger for the noise ratio that general the latter produces, and is main noise source.
In prior art, control for fan noise mainly contains three kinds: 1, be wrapping to by blower fan in the abundant box having deadener (generally using EVA material), but do deadener requirement higher like this, and the volume of box generally all can require larger, be unfavorable for the control of cost and the control of respirator volume, because home ventilator mainly uses with Sleeping Center within the family, conveniently, that generally can not do is too large.2, manufacture sound insulation environment by gas circuit structure, the method cost is low, but high to structural requirement, and general being difficult to realizes.3, increase rigid connecting components by the special protective treatment of increase and fix blower fan, reduce blower fan vibrations and reduce noise, but this scheme exists the problem of volume increase and cost increase equally.
CN202010337U discloses a kind of respirator regulation silencing shock-reduction device, and upper and lower two foams fasten, and be provided with blower fan holddown groove in foam, blower fan is fixed in the fastening space of upper and lower two foams by holddown groove.The vibration of blower fan can be delivered on foam equally, causes blower fan to resonate together with foam.
The CN103736186A of Changzhou Ke Mai Electronics Co., Ltd. discloses a kind of blower fan denoising structure, the fan body that surrounding is closely enclosed with ventilative soft layer is encapsulated in sealed compartment together, described sealed compartment surrounding and described ventilative soft layer close contact, described sealed compartment upper and lower is provided with air circulation room.The fan body of above-mentioned blower fan denoising structure is still by ventilative soft layer and sealed compartment close contact, and it is hardening that such time has been grown with ventilative soft layer, and the vibration of fan body can be delivered on ventilative soft layer and sealed compartment equally, causes resonance.
Gas in respirator is from the ejection of blower fan gas outlet after blower fan pressurization, and gas has certain flow velocity and pressure, produces therapeutical effect to patient.In order to better grasp treatment situation, understand the situation of patient, provide better comfortableness to patient, respirator needs to know real-time gas pressure and flow velocity, gathers the spot of real-time pressure and flow velocity just at cut-off equipment.The effect of cut-off equipment in respirator air flue, except facilitating image data, also must have the function of rectification.The gas of blower fan blowout is not steady air flow, usually has larger disturbance, if directly gather the air-flow of blower fan blowout, what obtain will not be stable data, has a great impact algorithm every in software, meanwhile, patient also can be allowed to do not feel like oneself.
The respirator be suitable in institute is owing to having special messenger to operate and environment for use is openr, therefore a water box normally independently module, and home ventilator is due to environment for use, production cost and the conveniently patient use at home and when going out, usually compact can be made into, style easy to carry, therefore the water box of home ventilator can be close to respirator main frame (Fig. 7 of the present invention) usually, water box is connected with main frame fan outlet by soft tube, usually a certain amount of water is had in water box, in order to avoid the water in water box accidentally enters main frame in the process of mobile respirator, main frame is caused to damage, need design water box being carried out to anti-backflow structure, guarantee that the water in water box can not enter main frame by pipeline or other approach.Therefore, the water how designed in the effective anti-sealing box of reverse-filling does not enter main frame, causes main frame to damage, and this is the problem needing to be solved further.
Summary of the invention
For above-mentioned prior art Problems existing, one of the object of the invention is to provide a kind of portable respirator that really effectively can reduce blower fan two kinds of noise sources.
Two of the object of the invention is to provide a kind of portable respirator with gas cut-off equipment being convenient to accurately detect breathing gas parameter.
Three of the object of the invention is to provide the water box structure that can realize 360 ° of reverse-fillings and the portable respirator automatically selecting the water box structure in warming and humidifying path according to the humidity of suction gas.
The present invention realizes like this, a kind of portable respirator, comprise housing, Fan Box, cut-off equipment and control device is provided with in described housing, blower fan is arranged in Fan Box by denoising device, and the air outlet of blower fan connects inner air tube, and inner air tube is provided with cut-off equipment, the air outlet of cut-off equipment connects air tube and face shield, and described Fan Box comprises fan bottom box and blower fan top box; Described denoising device comprises the flexible lower cover be arranged in fan bottom box and the flexible upper cover be arranged in blower fan top box coordinates the enclosed cavity being formed and hold blower fan, described flexibility covers and is provided with at least 3 suppending holes, be provided with flexible davit in each suppending hole, described blower fan is suspended on flexible davit.
Further, between fan bottom box and flexible lower cover, be provided with vibration damping sheet at the bottom of Fan Box, between blower fan top box and flexible upper cover, be provided with Fan Box top vibration damping sheet.
Further, the bottom design of described flexible lower cover has snakelike air channel groove, at the bottom of described flexible lower cover and Fan Box, snakelike closed airway is formed between vibration damping sheet after assembling, take blower fan as initial point, air inlet is located at the sidewall bottom of the flexible lower cover of 90 degree of direction forwards, described snakelike closed airway at least through two bendings, is then upward through the top that described flexible lower cover enters described enclosed cavity, then drops to the fan air inlet bottom described blower fan from this air inlet.
Further, the blower fan gas outlet place of described blower fan is provided with connecting hose, and described connecting hose connects switching bend pipe, the inner air tube of described switching bend pipe connecting fan.
Further, be also provided with warming and humidifying device in housing, the air outlet of described cut-off equipment connects described warming and humidifying device by inner air tube, and the air outlet of described warming and humidifying device connects air tube and face shield.
Further, described cut-off equipment comprises rectifying frame, honeycomb rectifying component, transfer conduit, flexible boot, outer connecting pipe, silica gel connector and sensor, and described transfer conduit is tubular member, and left end is air inlet, and right-hand member is gas outlet; Described air inlet is connected with rectifying frame, clamping in the groove of flexible boot is inserted in described gas outlet, outer connecting pipe is plugged with in described flexible boot endoporus, above described transfer conduit, disalignment certain distance is interval with cutoff hole post, and the endoporus of described transfer conduit communicates with the endoporus of described cutoff hole post; The cutoff hole post of described transfer conduit is plugged with silica gel connector, described silica gel connector connecting sensor; Honeycomb rectifying component is provided with between described transfer conduit and rectifying frame.
Further, described warming and humidifying device is by upper cover, end box is sealed and matched formation, be provided with lower cover flange in box of the described end and end box is separated into capacitor and large chamber, cover flange is covered with upper, work as upper cover, when box is sealed and matched at the end, described cover flange is corresponding with described lower cover flange is sealed and matched, described lower cover flange is provided with through hole, silica gel funnel cover is installed with by rubber seal in through hole, described silica gel funnel cover comprises reduced diameter section, enlarged diameter section and the cone of the transition between described reduced diameter section and enlarged diameter section section, the middle of box lower surface, the end is provided with conducting strip, the side of described capacitor has air inlet, described upper cover has gas outlet, described rubber seal comprises hollow pipe, the first flange and the second flange is provided with in periphery, described hollow pipe one end, the thickness of the distance between described first flange and the second flange and described cover flange and lower cover flange is formed and coordinates, described second flange is interval with inner annular flange and outer annular flanges, the enlarged diameter section of described silica gel funnel cover is inserted between inner annular flange and outer annular flanges, the centre bore at the described silica gel funnel cover reduced diameter section place height minimum apart from box lower surface, the end is greater than the height 10-20mm of box lower surface at the bottom of max line-spacing.
Further, described flexible davit comprises metal and adds bone strengthening, and described metal adds bone strengthening and described rubber, EVA material integrated injection molding.
Further, described blower fan has at least 3 blocked holes.
Further, the lower surface of upper cover is provided with U-shaped baffle plate, and the U-shaped indent of described U-shaped baffle plate is just to the reduced diameter section of described silica gel funnel cover.
Above-mentioned denoising device of the present invention is the technical purpose being reached noise reduction by following technical conceive, distinctive " flexible parcel " cooperation " flexible suspension ", and suspension type is fitted to each other flexible upper and lower covers, effectively prevents the transmission of fan vibration; It is hang the sound insulation environment that assembling blower fan provides reinforcement within it that described flexible upper cover and flexible lower cover form enclosed cavity, flexible upper cover provides flexible support for hanging assembling again simultaneously, achieve the technique effect of better vibration damping, above-mentioned suspension and flexible parcel functionally mutually support, the total technique effect after this combination is more superior than the technique effect sum of independent " flexible parcel " and independent " flexible suspension ".
Simultaneously, wind is made an uproar and blower fan itself vibrates must solve the basic demand that just can reach denoising device simultaneously, above-mentioned technical conceive, except can greatly reduce except blower fan itself vibrates, also covers and devises snakelike air channel under flexibility, significantly reduces wind and makes an uproar and the transmission of fan noise.Snakelike closed airway is defined between vibration damping sheet, the wind whistle that effectively decay import and prevention fan blade and windage produce at the bottom of flexible lower cover and Fan Box; Simultaneously to drop to the fan air inlet bottom blower fan again through enclosed cavity top via the extraneous gas of snakelike closed airway, take the heat that blower fan produces to blower fan gas outlet at extraneous air through enclosed cavity, play the effect of lowering the temperature into blower fan.
Under the help of above-mentioned denoising device, operating noise is dropped to less than 15 decibels by low noise breathing function of the present invention.
The application solves the technical problem of " how the pressure of accurate detected gas and flow velocity from air flue given vent to anger by respirator blower fan " by following technical conceive, namely the current stabilization of cross coordinates the rectified action of honeycomb rectifying component, the current stabilization effect of cross makes air-flow become laminar flow from turbulent flow, and through the cellular aperture of honeycomb rectifying component, gas is made to become laminar condition completely, laminar gas forms a constant pressure drop at inlet end and outlet side, and differential pressure pick-up can be allowed to draw the flow velocity that gas is current.A rectification of cross and the secondary rectification of honeycomb rectifying component are functionally interactional, and the total technique effect coordinated before and after the two is greater than the technique effect sum be used alone.
Anti-backflow structure of the present invention has following beneficial effect: box upper surface, the end of the present invention arranges a circle waterproof apron, seals, prevents the leaked water in use procedure middle water box; The projection that end box incline is arranged, the convenient water level in use observed in water box, be easy to control the water yield in water box number; The conducting strip that box lower surface, the end is arranged, plays heat conductive insulating effect, in use the temperature of heating plate is passed to water box by conducting strip, thus heat the water in water box; The centre bore at silica gel funnel cover reduced diameter section place is greater than the height 10-20mm of box lower surface at the bottom of max line-spacing apart from the minimum height in box lower surface, the end, ensure when water level is in below max line, no matter water box is in where water all can not enter silica gel funnel cover, namely realize the function of 360 ° of reverse-fillings, the design of this structure achieves the effect of the heavy reverse-filling of the present invention first; Rubber seal wraps up the enlarged diameter section of whole silica gel funnel cover, even if this design can ensure that a small amount of water enters silica gel funnel cover, also directly can not enter capacitor, help out to reverse-filling function; Silica gel air flue cover is to the part of capacitor internal protrusion, ensure that to have during a small amount of water inlet at capacitor avoids water to pour in down a chimney into respirator main frame, the design of this structure achieves the effect of the of the present invention second heavy reverse-filling, the part that silica gel air flue cover protrudes to large chamber interior is simultaneously connected with the gas outlet of respirator main frame, the air-flow that the gas outlet ensuring respiration machine host is flowed out can not spill from the side, and all enters into water box.
The present invention selects the water box structure in warming and humidifying path to have following technique effect according to the humidity of suction gas automatically:
1) the discrepant two kinds of humidification paths of warming and humidifying effect can be selected according to air humidity, the first only by the passive warming and humidifying exchanger of HME to the path of gas outlet, it two is by the path to gas outlet above the water surface of the large chamber of water box.
2) can realize the enhancement mode warming and humidifying structure of the large chamber of HME passive warming and humidifying exchanger series connection water box, successful, can allow patient's upper respiratory tract feel very good.
It is functionally mutually support that the structural design of above-mentioned reverse-filling and warming and humidifying structure design, only preventing pouring in down a chimney realization just can make the function of warming and humidifying structure continue to play, and warming and humidifying structure also designs close-fitting with the anti-backflow structure of large capacitor, the design of large capacitor is the structure prerequisite of the parallel connection of HME passive warming and humidifying exchanger or the large chamber of series connection water box, and the two combined effect obtains water box structure of the present invention.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention portable respirator connection diagram;
Fig. 2 is embodiment of the present invention portable respirator axonometric drawing;
Fig. 3 is the main sectional view of embodiment of the present invention fan noise reduction device;
Fig. 4 is the snakelike closed channel schematic diagram of embodiment of the present invention fan noise reduction device;
Fig. 5 is the B-B sectional view of Fig. 2 of embodiment of the present invention fan noise reduction device.
Fig. 6 is that the flexible davit of embodiment of the present invention fan noise reduction device hangs front view.
Fig. 7 is that the flexible davit of embodiment of the present invention fan noise reduction device hangs top view.
Fig. 8 is the main sectional view of embodiment of the present invention cut-off equipment.
Fig. 9 is the left view of embodiment of the present invention cut-off equipment.
Figure 10 is the explosive view of embodiment of the present invention cut-off equipment.
Figure 11 is that the axle of embodiment of the present invention water box surveys open mode schematic diagram.
Figure 12 is the main sectional view of embodiment of the present invention water box.
Figure 13 is the main sectional view of HME passive type hot and humid area device in embodiment of the present invention water box.
Figure 14 is the D-D sectional view of Figure 12 of HME passive type hot and humid area device of the present invention.
Reference numeral in above-mentioned figure:
100 housings, 101 Fan Boxs, 102 fan noise reduction devices, 103 blower fans, 104 air tubes, 105 face shields, 106 warming and humidifying devices, 107 inner air tubes, 108 cut-off equipments, 109 flow transducers, 110 pressure transducers, 111 flow sensors, 112 temperature and moisture sensors, 113 control device
A, respirator main frame; B, water box
1 fan bottom box, vibration damping sheet at the bottom of 2 Fan Boxs, 3 flexible lower covers, the snakelike closing air flue of 3-1,4 blower fan top boxs, 5 flexible upper covers, 6 flexible davits, 7 Fan Box top vibration damping sheets, 8 blower fans, 9 connecting hoses, 10 switching bend pipes, 11 blower fan gas outlets, 12 fan air inlets, 13A air flue hole, F extraneous air
Cut-off equipment Reference numeral J-X
J-1 rectifying frame, J-2 honeycomb rectifying component, J-3 transfer conduit, J-4
jflexible boot, J-5 outer connecting pipe, J-6 silica gel connector, J-7 sensor
J-1.1 lid, card top in J-1.2, J-1.3 cross, J-1.4 lid connecting portion;
The cellular aperture of J-2.1, J-2.2 upper surface fixed groove, J-2.3 lower surface fixed groove;
J-3.1 first cutoff hole post, J-3.2 second cutoff hole post, J-3.3 the 3rd cutoff hole post, J-3.4 shutoff ring,
Fastener in J-3.5, J-3.6 connecting portion, J-3.7 fastener, J-3.8 first locating dowel, 3.9 second locating dowels;
J-5.1 engages flange, J-5.2 clamping joint
J-6.1 first grafting through hole, J-6.2 second grafting through hole, J-6.3 the 3rd grafting through hole
Flow transducer before J-7.1 rectification, flow transducer after J-7.2 rectification, pressure transducer after J-7.3 rectification
Water box Structure Figure labelling W-X
W-1 upper cover, W-1.1 gas outlet; W-1.2, U-shaped baffle plate
W-2 waterproof apron
Box at the bottom of W-3, W-3.1 air inlet, W-3.2 capacitor, the large chamber of W-3.3, W-3.4 conducting strip, W-3.5 silica gel air flue cover, W-3.6 is protruding
W-4 silica gel funnel cover, W-4.1 reduced diameter section, W-4.2 transition cone section, W-4.3 enlarged diameter section, W-5 rubber seal, W-5.1 first flange, W-5.2 second flange, W-5.3 inner annular flange, W-5.4 outer annular flanges, W-6 opening, W-7 rotary switch valve, W-8HME passive type hot and humid area device
801 exchanger air inlets, 802 insulation boards, 803HME plate of material, 803-1 first air flue groove, 804 sealed insulation bars, 804-1 second air flue groove, 805 barrier heating pads, 805-1 the 3rd air flue groove, 806 heat exchanger gas outlets, 807 bottom plate of heat exchanger, 808 exchanger top boards, 809 exchanger side plates, 810 tanks, 811 intercommunicating pores, F cold dry air
Detailed description of the invention
Following examples are used for the present invention is described, but are not used for limiting the scope of the invention.
As shown in Figure 1, low noise respirator of the present invention comprises housing 100, housing is provided with air inlet, Fan Box 101 is provided with in housing, cut-off equipment 108, warming and humidifying device 106 and control device 113, Fan Box 101 air outlet connects inner air tube 107, inner air tube 107 is provided with cut-off equipment 108, flow transducer 109 is provided with in described cut-off equipment 108, pressure transducer 110 and flow sensor 111, described flow transducer 109, pressure transducer 110 is all connected with control device with flow sensor 111, the air outlet of cut-off equipment 108 connects warming and humidifying device 106 by inner air tube 107, the air outlet of described damping device connects air tube 104 and face shield 105.Described damping device preferably provides.
As shown in Figure 2, respirator of the present invention provides fan noise reduction device, Fan Box comprises fan bottom box 1 and blower fan top box 4, described blower fan 8 is arranged in the enclosed space of fan bottom box 1 and blower fan top box 4 formation by described denoising device, described denoising device comprises flexible lower cover 3, flexible upper cover 5, vibration damping sheet 2 at the bottom of Fan Box and Fan Box top vibration damping sheet 7, fan bottom box 1 is provided with vibration damping sheet 2 at the bottom of described Fan Box, described Fan Box top vibration damping sheet 7 is provided with at blower fan top box 4, vibration damping sheet 2 at the bottom of Fan Box is provided with described flexible lower cover 3, described flexible upper cover 5 is had at Fan Box top vibration damping sheet 7, described flexible lower cover 3 and described flexible upper cover 5 coordinate the enclosed cavity being formed and hold blower fan 8, described flexible upper cover 5 is provided with at least 3 suppending holes, flexible davit 6 is provided with in each suppending hole, described flexible davit 6 comprises davit body and is located at the flange of end of davit body, described davit body is provided with buckling groove, described flexible davit 6 is suspended in the suppending hole of described flexible upper cover 5 by flange, described blower fan 8 has blocked hole, described blower fan is fixedly connected with by the buckling groove of blocked hole with described flexible davit.Described flexible lower cover 3 and flexible upper cover 5 adopt EVA material to make.Described flexible davit 6 adopts rubber, EVA material integrated injection molding, and preferably, described flexible davit 6 comprises metal and adds bone strengthening, and described metal adds bone strengthening and described rubber, EVA material integrated injection molding.Preferably, the buckling groove of described davit body is thread groove, and described flexible davit 6 comprises flexible fastener nut further, and described flexible fastener nut coordinates fastening described blower fan 8 with the buckling groove of davit body.
Preferably, as shown in Figure 4, in order to the position of fixing blower fan 8, blower fan has at least 3 described blocked holes, and can need to increase according to difference, and equally, flexible davit corresponding with it also can increase and reduce.
The technical conceive of above-mentioned denoising device is the technical purpose being reached noise reduction by " flexible parcel " cooperation " flexible suspension ", in Fan Box, described flexible upper cover 5 and flexible lower cover 3 form enclosed cavity parcel blower fan 8, EVA material damping soundproof effect is good, also can be absorbed by described denoising device immediately even if above-mentioned denoising device makes blower fan 8 there occurs dither wherein, greatly reduce the conduction of vibration, thus reduce the vibration noise of blower fan.In order to reduce the vibration of blower fan further, at least three fixed hole positions of blower fan use flexible davit 6, described property davit 6, through flexible upper cover 5, is fixed on its top by flange.Blower fan 8 by flexible davit 6 and flexible upper cover 5 achieve hang fixing simultaneously can damping, greatly reduce the noise because vibrations produce.
Except blower fan being hung and wraps up, also the long connecting hose 9 of one section of about 3cm will be provided with at the gas outlet place of blower fan, described connecting hose 9 connects switching bend pipe 10, described switching bend pipe 10 connects inner air tube 107, avoid producing noise because blower fan shakes when the blower fan gas outlet that causes and outer flue collide, as shown in Figure 2.
Except above-mentioned functions, flexible upper cover 5 and flexible lower cover 3 provide the function of ambient atmos and cooling for blower fan.As shown in Figure 3, the bottom of flexible lower cover 3 makes full use of spatial design snakelike air channel groove, at the bottom of flexible lower cover 3 and Fan Box, snakelike closed airway 3-1 is defined between vibration damping sheet 2 after assembling, take blower fan as initial point, air inlet is located at the sidewall bottom of the flexible lower cover 3 of 90 degree of direction forwards, described snakelike closing air flue 3-1 is from this air inlet, first 90 degree of direction negative sense craspedodrome 40-60mm again along 0 degree of direction forward direct movement 30-40mm again to 90 degree of direction forward direct movement 30-40mm, arrive the sidewall of described flexible lower cover 3 along 0 degree of direction forward direct movement 20-30mm again and do not penetrate, after the length of 90 degree of whole flexible lower cover 3 sidewalls of direction negative senses craspedodrome, be upward through the A pore road 13 of described snakelike closing air flue 3-1 end again and pass the top that described flexible lower cover 3 enters cavity, drop to the fan air inlet 12 bottom blower fan again, described snakelike closed airway 3-1 is at least through two bendings, preferably, described snakelike closed airway 3-1 is smooth curve, described smooth curve has two protuberances and a recess at least, path longer and the snakelike closed airway 3-1 of complications can decay effectively import and the wind whistle that stops fan blade and windage to produce, on the other hand, extraneous air F enters the snakelike closed airway 3-1 of vibration damping sheet 2 formation at the bottom of flexible lower cover 3 and Fan Box through air inlet, as shown in Figure 4, and then enters the top of cavity, drop to the fan air inlet bottom blower fan again, blow out via blower fan gas outlet 11.Take the heat that blower fan produces to blower fan gas outlet at extraneous air F through enclosed cavity, discharge Fan Box in the lump, play the effect into blower fan cooling.
The present invention has the design of following inventive technique: " flexible parcel " cooperation " flexible suspension " reaches the technical purpose of noise reduction, effectively prevents the transmission of fan vibration, described " flexible parcel " cooperation " flexible suspension ", suspension type is fitted to each other flexible upper and lower covers, effectively prevents the transmission of fan vibration, described flexible upper cover 5 and flexible lower cover 3 form enclosed cavity parcel blower fan 8, define the sound insulation environment of fan noise, fan suspended to reduce itself vibrates by flexible davit 6, above-mentioned suspension and flexible parcel functionally mutually support, therefore described flexible upper cover 5 and flexible lower cover 3 form enclosed cavity is hang the sound insulation environment that assembling blower fan provides reinforcement within it, flexible upper cover 5 provides flexible support for hanging assembling again simultaneously, achieve the technique effect of better vibration damping, total technique effect after this combination is more superior than the technique effect sum of independent flexibility parcel and independent flexible suspension, the work noise of respirator is controlled below 15 decibels.
As seen in figs. 8-10, cut-off equipment of the present invention is achieved in that cut-off equipment comprises transfer conduit J-3, and described transfer conduit J-3 is tubular member, and left end is air inlet, and right-hand member is gas outlet; Air inlet is connected with rectifying frame J-1, clamping in the groove of flexible boot J-4 is inserted in described gas outlet, be plugged with outer connecting pipe J-5 in described flexible boot J-4 endoporus, described transfer conduit J-3 be plugged with silica gel connector J-6, described silica gel connector J-6 connecting sensor J-7; Honeycomb rectifying component J-2 is provided with between described transfer conduit J-3 and rectifying frame J-1.
The endoporus that above described transfer conduit J-3, disalignment certain distance is interval with the first cutoff hole post J-3.1, the second cutoff hole post J-3.2 and the 3rd cutoff hole post J-3.3, described transfer conduit J-3 communicates with the endoporus of described first cutoff hole post J-3.1, the second cutoff hole post J-3.2 and the 3rd cutoff hole post J-3.3.Be provided with shutoff ring J-3.4 inside described transfer conduit J-3 air inlet, shutoff ring J-3.4 is provided with interior fastener J-3.5, outside air inlet, be provided with connecting portion J-3.6 and fastener J-3.7.Described transfer conduit J-3 also comprises the first locating dowel J-3.8 and the second locating dowel J-3.9, and described first locating dowel J-3.8 and the second locating dowel J-3.9 is used for location and support circuit plate.
Described silica gel connector J-6 has the first grafting through hole J-6.1, the second grafting through hole J-6.2 and the 3rd grafting through hole J-6.3 that arrange with cutoff hole post same intervals.The inlet end of described first grafting through hole J-6.1, the second grafting through hole J-6.2 and the 3rd grafting through hole J-6.3 respectively corresponding be inserted into described transfer conduit J-3 the first cutoff hole post J-3.1, the second cutoff hole post J-3.2 and the 3rd cutoff hole post J-3.3 on.Pressure transducer J-7.3 after flow transducer J-7.2 and rectification after flow transducer J-7.1, rectification before the outlet side of described first grafting through hole J-6.1, the second grafting through hole J-6.2 and the 3rd grafting through hole J-6.3 is respectively equipped with rectification.
Described rectifying frame J-1 comprises lid J-1.1, and arrange the interior card top J-1.2 of lid portion inside, described lid top has opening, is provided with cross J-1.3 at overthe openings, and the inner circumferential surface of described lid has lid connecting portion J-1.4.
Described honeycomb rectifying component J-2 has the multiple cellular aperture J-2.1, upper surface fixed groove J-2.2 and the lower surface fixed groove J-2.3 that are disposed adjacent, and described honeycomb rectifying component J-2 has rectification and gathers the function of airstream data.Described honeycomb rectifying component J-2 outer peripheral face coordinates with the inner peripheral surface of described transfer conduit J-3, described interior fastener J-3.5 is connected to the bottom of described lower surface fixed groove J-2.3, the lid connecting portion J-1.4 of described rectifying frame J-1 and the connecting portion J-3.6 of described transfer conduit J-3; When described lid connecting portion J-1.4 terminates in the described fastener J-3.7 of transfer conduit J-3, the interior card top J-1.2 of described rectifying frame J-1 inserts and terminates in the bottom of upper surface fixed groove J-2.2.
Described flexible boot is silica gel material.Described outer connecting pipe J-5 is provided with locking flange J-5.1 and clamping joint J-5.2.
Described rectifying frame J-1 is threaded connection, the mode of clamping or ultrasonic bonding connects the air inlet of transfer conduit J-3.The groove of described flexible boot J-4 and the gas outlet interference fit of described transfer conduit J-3.The inlet end interference fit ground of described outer connecting pipe J-5 inserts clamping in the endoporus of described flexible boot J-4 and is locked flange J-5.1 and stops, the sealing property of reason silica gel material ensures that connection is air tight, and air-flow is smooth-going.
Air-flow arrives after cut-off equipment through blower fan gas outlet, and first through rectifying frame 1, the cross of rectifying frame 1 plays the effect of current stabilization to gas, but gas advance process can not be made to be obstructed, if adopt other forms will not reach the effect of rectification.Rectifying frame J-1 is connected with the air inlet of transfer conduit J-3, and described cross J-1.3 is in the air flue of upstream, and described lid J-1.2, outside the air flue of upstream, plays best rectification effect, long or does not too shortly all reach rectification effect, affects therapeutic effect.Gas is after rectifying frame J-1 is stable, will by honeycomb rectifying component J-2, honeycomb rectifying component J-2 is a round plastic part with cellular aperture, it plays second time rectification to air-flow and forms the effect of pressure reduction, air-flow is through honeycomb rectifying component J-2, form a constant pressure drop at the inlet end of honeycomb rectifying component J-2 and outlet side, by this pressure drop, differential pressure pick-up can be allowed to draw the flow velocity that gas is current.
The application solves the technical problem of " how the pressure of detected gas and flow velocity from air flue given vent to anger by respirator blower fan " by following technical conceive, namely the current stabilization of cross J-1.3 coordinates the rectified action of honeycomb rectifying component J-2, the current stabilization effect of cross makes air-flow become laminar flow from turbulent flow, and through the cellular aperture of honeycomb rectifying component J-2, gas is made to become laminar condition completely, laminar gas forms a constant pressure drop at inlet end and outlet side, and differential pressure pick-up can be allowed to draw the flow velocity that gas is current.A rectification of cross and the secondary rectification of honeycomb rectifying component J-2 are functionally interactional, and the total technique effect coordinated before and after the two is greater than the technique effect sum be used alone.
As illustrated in figs. 11-14, water box structure of the present invention realizes like this, a kind of anti-down box of pouring water used for respirators provided by the invention, by upper cover W-1, end box W-3 is sealed and matched formation, be provided with lower cover flange in box of the described end and end box be separated into capacitor W-3.2 and large chamber W-3.3, cover flange is provided with at upper cover W-1, work as upper cover, when box is sealed and matched at the end, described cover flange is corresponding with described lower cover flange is sealed and matched, described lower cover flange is provided with through hole, silica gel funnel cover W-4 is installed with by rubber seal W-5 in through hole, described silica gel funnel cover W-4 comprises reduced diameter section W-4.1, enlarged diameter section W-4.3 and the cone of the transition between described reduced diameter section and enlarged diameter section section W-4.3, the middle of box lower surface, the end is provided with conducting strip, the side of described capacitor has air inlet W-3.1, described upper cover has gas outlet W-1.1, described rubber seal 5 comprises hollow pipe, the first flange W-5.1 and the second flange W-5.2 is provided with in periphery, described hollow pipe one end, the thickness of the distance between described first flange and the second flange and described cover flange and lower cover flange is formed and coordinates, described second flange is interval with inner annular flange W-5.3 and outer annular flanges W-5.4, the enlarged diameter section of described silica gel funnel cover is inserted between inner annular flange and outer annular flanges, the centre bore at the described silica gel funnel cover reduced diameter section place height minimum apart from box lower surface, the end is greater than the height 10-20mm of box lower surface at the bottom of max line-spacing.
The lower surface of upper cover W-1 is provided with U-shaped baffle plate W-1.2, the upper surface of described end box W-3 and flange are provided with a circle waterproof apron W-2, the middle of box W-3 lower surface, the end is provided with conducting strip W-3.4, silica gel air flue cover W-3.5 is installed at described air inlet W-3.1 place, described capacitor W-3.2 is connected with two centre bores of silica gel funnel cover W-4 by rubber seal W-5 with large chamber W-3.3, described silica gel air flue cover W-3.5 is by the part to capacitor W-3.2 internal protrusion and form to the part of capacitor W-3.2 outside protrusion, the described part protruded to capacitor W-3.2 outside is connected with the gas outlet of respirator main frame, described silica gel air flue cover W-3.5 is to capacitor W-3.2 internal protrusion 15-30m.
As shown in Figure 2, the lateral wall of end box W-3 indicates max and min two graduation mark, for the number of the water yield in reminding user water box, when water level is more than the reverse-filling disabler that can make water box during max line, dry combustion method may be caused lower than min line, impact the stable operation of equipment, therefore in use, the water level in water box should be between min and max.
In order to combine HME hot and humid area function in water box, the invention provides a kind of embedded hot and humid area device of improvement, as depicted in figs. 11-12, embedded hot and humid area device comprises by bottom plate of heat exchanger 807, exchanger top board 808, the shell that exchanger side plate 809 is formed, bottom plate of heat exchanger 807 is provided with exchanger air inlet 801, exchanger top board 808 is provided with heat exchanger gas outlet 806, in bottom plate of heat exchanger 807, insulation board 802 is provided with between exchanger top board 808, insulation board 802 is provided with HME plate of material 803 successively along air path, sealed insulation bar 804 and barrier heating pads 805, in HME plate of material 803, insulation strip 804 and barrier heating pads 805 offer multiple first air flue groove 803-1 respectively, second air flue groove and the 3rd air flue groove 805-1, described HME plate of material 803 and barrier heating pads 805 interchangeable position, described first air flue groove 803-1, second air flue groove is connected successively with the 3rd air flue groove 805-1, exchanger top board 808 is just provided with tank 810 to above HME plate of material 803, is provided with multirow bottom tank 810 just to the intercommunicating pore 811 of HME plate of material 803 salient rib.Cold dry air F enters through exchanger 801, the moisture in HME material is taken away respectively by multiple first air flue groove 803-1, and heated by the 3rd air flue groove 805-1, or first through the 3rd air flue groove 805-1 by the moisture taken away by multiple first air flue groove 803-1 after heating in HME material, the gas of warming and humidifying is discharged by exchanger gas outlet 806; Described HME plate of material 803 is made up of the heat retained material that wets, and the described heat retained material that wets comprises the hygroscopic foam of calcium salt or lithium salts process, paper or other hot and humid area material.
Embedded hot and humid area device access scheme in parallel is: at upper cover W-1 just to being provided with HME passive type hot and humid area device W-8 in parallel above capacitor W-3.2, in capacitor W-3.2, be provided with the rotary switch valve W-7 pivoted, the center side wall of upper cover W-1 is provided with opening W-6.Form the water box structure of a kind of intelligence or artificial selection's type warming and humidifying.
Hot and humid area device series connection access scheme is: at upper cover W-1 just to being provided with cascaded H ME passive type hot and humid area device W-9 above capacitor W-3.2, the other end of silica gel air flue cover W-3.5 is by hose connection exchanger air inlet 801, and the entrance of rubber seal W-5 is connected by pipeline with exchanger gas outlet 806; Form a kind of water box structure of enhancement mode warming and humidifying.
The technical spirit of reverse-filling of the present invention is achieved in that box W-3 upper surface, the end arranges a circle waterproof apron W-2, seals, prevents the leaked water in use procedure middle water box; The protruding W-3.6 that box W-3 incline in the end is arranged, the convenient water level in use observed in water box, be easy to control the water yield in water box number; The conducting strip W-3.4 that box W-3 lower surface, the end is arranged, plays heat conductive insulating effect, in use the temperature of heating plate is passed to water box by conducting strip W-3.4, thus heat the water in water box; The centre bore at silica gel funnel cover W-4 reduced diameter section place is greater than the height of box W-3 lower surface at the bottom of max line-spacing apart from the minimum height in box 3 lower surface, the end, ensure when water level is in below max line, no matter water box is in where water all can not enter silica gel funnel cover W-4, namely realize the function of 360 ° of reverse-fillings, the design of this structure achieves the effect of the heavy reverse-filling of the present invention first; Rubber seal W-5 wraps up the enlarged diameter section of whole silica gel funnel cover W-4, even if this design can ensure that a small amount of water enters silica gel funnel cover W-4, also can not directly enter capacitor W-3.2, help out to reverse-filling function; Silica gel air flue cover W-3.5 is to the part of capacitor W-3.2 internal protrusion, ensure that to have during a small amount of water inlet at capacitor W-3.2 avoids water to pour in down a chimney into respirator main frame, the design of this structure achieves the effect of the of the present invention second heavy reverse-filling, the part that silica gel air flue cover W-3.5 protrudes to capacitor W-3.2 outside is simultaneously connected with the gas outlet of respirator main frame, the air-flow that the gas outlet ensuring respiration machine host is flowed out can not spill from the side, and all enters into water box.
The present invention selects the embedded hot and humid area device of the function in warming and humidifying path access scheme in parallel to be realize like this according to the humidity of suction gas automatically, the air humidity that control device records according to the sensor of silica gel air flue cover W-3.5 judges, if humidity is less than rated value, as 35%, then control device rotates up controlled valve W-7, stop the air inlet of embedded HME hot and humid area device W-8, gas enters capacitor W-3.2 from air inlet W-3.1, large chamber W-3.3 is entered by two centre bores of rubber seal W-5 and silica gel funnel cover W-4, when gas from the centre bore of silica gel funnel cover W-4 reduced diameter section out time, gas can be stopped by the U-shaped baffle plate W-1.2 of upper cover W-1, form resilience, certain hour is detained in water box inside, now heating plate is heated the water in water box by conducting strip W-3.4, thus the gas be detained can by heating and moistening, gas after heating and moistening blows out from the gas outlet W-1.1 of upper cover W-1 again, complete active hot and humid area function, if humidity is greater than rated value, as 35%, then control device is rotated down controlled valve W-7, stop the air inlet of rubber seal W-5, gas enters capacitor W-3.2 from air inlet W-3.1, enters hot and humid area device 8 in parallel by exchanger air inlet 801, wherein complete hot and humid area, discharge from exchanger gas outlet 806, and blow out through opening W-6 and gas outlet W-1.1, complete passive heat and to wet function of exchange,
The present invention automatically selects the function in warming and humidifying path according to the humidity of suction gas and hot and humid area device series connection access scheme realizes like this, gas enters capacitor W-3.2 from air inlet W-3.1, hot and humid area device W-8 in parallel is entered by exchanger air inlet 801, wherein complete hot and humid area, discharge from exchanger gas outlet 806 and enter large chamber W-3.3 by two centre bores of rubber seal W-5 and silica gel funnel cover W-4, when gas from the centre bore of silica gel funnel cover W-4 reduced diameter section out time, gas can be stopped formation resilience by the U-shaped baffle plate W-1.2 of upper cover W-1, certain hour is detained in water box inside, now heating plate is heated the water in water box by conducting strip W-3.4, thus the gas be detained can by heating and moistening, gas after heating and moistening blows out from the gas outlet W-1.1 of upper cover W-1 again, complete active hot and humid area function tandem compound passive heat Wet exchanger and complete hot and humid area function.
Water box anti-backflow structure of the present invention has following beneficial effect: box upper surface, the end of the present invention arranges a circle waterproof apron, seals, prevents the leaked water in use procedure middle water box; The projection that end box incline is arranged, the convenient water level in use observed in water box, be easy to control the water yield in water box number; The conducting strip that box lower surface, the end is arranged, plays heat conductive insulating effect, in use the temperature of heating plate is passed to water box by conducting strip, thus heat the water in water box; The centre bore at silica gel funnel cover reduced diameter section place is greater than the height 10-20mm of box lower surface at the bottom of max line-spacing apart from the minimum height in box lower surface, the end, ensure when water level is in below max line, no matter water box is in where water all can not enter silica gel funnel cover, namely realize the function of 360 ° of reverse-fillings, the design of this structure achieves the effect of the heavy reverse-filling of the present invention first; Rubber seal wraps up the enlarged diameter section of whole silica gel funnel cover, even if this design can ensure that a small amount of water enters silica gel funnel cover, also directly can not enter capacitor, help out to reverse-filling function; Silica gel air flue cover is to the part of capacitor internal protrusion, ensure that to have during a small amount of water inlet at capacitor avoids water to pour in down a chimney into respirator main frame, the design of this structure achieves the effect of the of the present invention second heavy reverse-filling, the part that silica gel air flue cover protrudes to large chamber interior is simultaneously connected with the gas outlet of respirator main frame, the air-flow that the gas outlet ensuring respiration machine host is flowed out can not spill from the side, and all enters into water box.
The present invention selects the water box structure in warming and humidifying path to have following technique effect according to the humidity of suction gas automatically:
1) the discrepant two kinds of humidification paths of warming and humidifying effect can be selected according to air humidity, the first only by the passive warming and humidifying exchanger of HME to the path of gas outlet, it two is by the path to gas outlet above the water surface of the large chamber W-3.2 of water box.
2) can realize the enhancement mode warming and humidifying structure of the large chamber of HME passive warming and humidifying exchanger series connection water box, successful, can allow patient's upper respiratory tract feel very good.
It is functionally mutually support that the structural design of above-mentioned reverse-filling and warming and humidifying structure design, only preventing pouring in down a chimney realization just can make the function of warming and humidifying structure continue to play, and warming and humidifying structure also designs close-fitting with the anti-backflow structure of large capacitor, the design of large capacitor is the structure prerequisite of the parallel connection of HME passive warming and humidifying exchanger or the large chamber of series connection water box, and the two combined effect obtains water box structure of the present invention.
Claims (10)
1. a portable respirator, comprise housing, Fan Box (101), cut-off equipment (108) and control device (113) is provided with in described housing, blower fan (8) is arranged in Fan Box (101) by denoising device, the air outlet of blower fan connects inner air tube (107), inner air tube (107) is provided with cut-off equipment (108), the air outlet of cut-off equipment (108) connects air tube (104) and face shield (105), it is characterized in that
Described Fan Box comprises fan bottom box (1) and blower fan top box (4); Described denoising device comprises the flexible lower cover (3) be arranged in fan bottom box and the flexible upper cover (5) be arranged in blower fan top box coordinates the enclosed cavity being formed and hold blower fan (8), described flexible upper cover (5) is provided with at least 3 suppending holes, be provided with flexible davit (6) in each suppending hole, described blower fan (8) is suspended on flexible davit (6).
2. a kind of portable respirator according to claim 1, it is characterized in that, between fan bottom box (1) and flexible lower cover (3), be provided with vibration damping sheet at the bottom of Fan Box (2), between blower fan top box (4) and flexible upper cover (5), be provided with Fan Box top vibration damping sheet (7).
3. a kind of portable respirator according to claim 1, it is characterized in that, the bottom design of described flexible lower cover (3) has snakelike air channel groove, at the bottom of described flexible lower cover (3) and Fan Box, snakelike closed airway (3-1) is formed between vibration damping sheet (2) after assembling, take blower fan as initial point, air inlet is located at the sidewall bottom of the flexible lower cover (3) of 90 degree of direction forwards, described snakelike closed airway (3-1) from this air inlet at least through two bendings, then the top that described flexible lower cover (3) enters described enclosed cavity is upward through, drop to the fan air inlet (12) of described blower fan (8) bottom again.
4. a kind of portable respirator according to claim 1, it is characterized in that, blower fan gas outlet (11) place of described blower fan (8) is provided with connecting hose (9), described connecting hose (9) connects switching bend pipe (10), the inner air tube (107) of described switching bend pipe (10) connecting fan.
5. a kind of portable respirator according to claim 1, it is characterized in that, warming and humidifying device (106) is also provided with in housing, the air outlet of described cut-off equipment (108) connects described warming and humidifying device (106) by inner air tube (107), and the air outlet of described warming and humidifying device connects air tube (104) and face shield (105).
6. a kind of portable respirator according to claim 1, it is characterized in that, described cut-off equipment (108) comprises rectifying frame (J-1), honeycomb rectifying component (J-2), transfer conduit (J-3), flexible boot (J-4), outer connecting pipe (J-5), silica gel connector (J-6) and sensor (J-7), described transfer conduit (J-3) is tubular member, left end is air inlet, and right-hand member is gas outlet; Described air inlet is connected with rectifying frame (J-1), clamping in the groove of flexible boot (J-4) is inserted in described gas outlet, outer connecting pipe (J-5) is plugged with in described flexible boot (J-4) endoporus, described transfer conduit (J-3) top disalignment certain distance is interval with cutoff hole post (J-3.1, J-3.2, J-3.3), the endoporus of described transfer conduit (J-3) and described cutoff hole post (J-3.1, J-3.2, J-3.3) endoporus communicate; The cutoff hole post (J-3.1, J-3.2, J-3.3) of described transfer conduit (J-3) is plugged with silica gel connector (J-6), described silica gel connector (J-6) connecting sensor (J-7); Honeycomb rectifying component (J-2) is provided with between described transfer conduit (J-3) and rectifying frame (J-1).
7. a kind of portable respirator according to claim 5, it is characterized in that, described warming and humidifying device (106) is by upper cover (W-1), end box (W-3) is sealed and matched formation, be provided with lower cover flange in box of the described end and end box be separated into capacitor (W-3.2) and large chamber (W-3.3), cover flange is provided with at upper cover (W-1), work as upper cover, when box is sealed and matched at the end, described cover flange is corresponding with described lower cover flange is sealed and matched, described lower cover flange is provided with through hole, silica gel funnel cover (W-4) is installed with by rubber seal (W-5) in through hole, described silica gel funnel cover (W-4) comprises reduced diameter section (W-4.1), enlarged diameter section (W-4.3) and cone section of the transition between described reduced diameter section and enlarged diameter section (W-4.2), the middle of box lower surface, the end is provided with conducting strip, the side of described capacitor has air inlet, described upper cover has gas outlet, described rubber seal (W-5) comprises hollow pipe, the first flange (W-5.1) and the second flange (W-5.2) is provided with in periphery, described hollow pipe one end, the thickness of the distance between described first flange and the second flange and described cover flange and lower cover flange is formed and coordinates, described second flange (W-5.2) is interval with inner annular flange (5.3) and outer annular flanges (W-5.4), the enlarged diameter section of described silica gel funnel cover is inserted between inner annular flange and outer annular flanges, the centre bore at the described silica gel funnel cover reduced diameter section place height minimum apart from box lower surface, the end is greater than the height 10-20mm of box lower surface at the bottom of max line-spacing.
8. a kind of portable respirator according to claim 1, is characterized in that, described flexible davit (6) comprises metal and adds bone strengthening, and described metal adds bone strengthening and described rubber, EVA material integrated injection molding.
9. a kind of portable respirator according to claim 1, is characterized in that, described blower fan (8) has at least 3 blocked holes.
10. a kind of portable respirator according to claim 7, is characterized in that, the lower surface of upper cover is provided with U-shaped baffle plate (W-1.2), and the U-shaped indent of described U-shaped baffle plate is just to the reduced diameter section of described silica gel funnel cover (W-4).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129347.0A CN104689442B (en) | 2015-03-24 | 2015-03-24 | A kind of portable respirator |
| PCT/CN2016/076991 WO2016150373A1 (en) | 2015-03-24 | 2016-03-22 | Portable breathing machine |
| US15/561,066 US10806877B2 (en) | 2015-03-24 | 2016-03-22 | Portable breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129347.0A CN104689442B (en) | 2015-03-24 | 2015-03-24 | A kind of portable respirator |
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| CN104689442A true CN104689442A (en) | 2015-06-10 |
| CN104689442B CN104689442B (en) | 2016-11-16 |
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| CN201510129347.0A Expired - Fee Related CN104689442B (en) | 2015-03-24 | 2015-03-24 | A kind of portable respirator |
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| CN108543180A (en) * | 2018-02-09 | 2018-09-18 | 苏州鱼跃医疗科技有限公司 | A kind of noninvasive mute lung ventilator |
| CN108626144A (en) * | 2017-03-24 | 2018-10-09 | 深圳市大雅医疗技术有限公司 | The lung ventilator of Small Centrifugal Fan and the application centrifugal blower |
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| CN112569493A (en) * | 2019-09-27 | 2021-03-30 | 雃博股份有限公司 | Respiratory system |
| CN113101475A (en) * | 2015-07-07 | 2021-07-13 | 瑞思迈私人有限公司 | Respiratory pressure treatment device |
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Address after: 410205 Room 101, 1st floor, north of superstar entrepreneurship base, No. 8 Lujing Road, high tech Development Zone, Changsha, Hunan Patentee after: Hunan Mingkang Zhongjin Medical Technology Co.,Ltd. Address before: 410125 North first floor, superstar entrepreneurship base, No. 8 Lujing Road, Changsha City, Hunan Province Patentee before: HUNAN MICOME ZHONGJIN MEDICAL SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Granted publication date: 20161116 |