CN205055240U - Air that will pass through purification provides respirator in enclosure space - Google Patents

Abstract

The utility model discloses an air that will pass through purification provides respirator in enclosure space, include: the dustcoat that has the inner space, the range upon range of axial flow fan of a plurality of serials configures into air suction to the inner space of dustcoat in and generate the hydrostatic pressure of 3 inch at least water and 50 standards that are in rise per minute to the 300 standard malleation air currents that rise the air mass flow between the per minute, arrange in the inner space of dustcoat and include at least one main filter module that is used for getting rid of the main filter of ultra -fine grain that a plurality of fans guide malleation air current is through at least one main filter in order to provide the air through purifying, and passing the port of giving vent to anger of dustcoat, it is received under the malleation air current and comes from guiding through air that purifies and the air that will pass through the purification of main filter module the enclosure space.

Description

Air through purification is provided to the respirator in enclosure space

the cross reference of related application

The application requires the rights and interests of following patent application 119 times at U.S.C. §: the title submitted on June 4th, 2014 is the U.S. Provisional Patent Application No.62/007 of " LowPowerRespiratortoRemoveUltrafineParticles (in order to remove the low-power respirator of ultra-fine grain) ", 886; The title submitted on July 2nd, 2014 is the U.S. Provisional Patent Application No.62/020 of " LowPowerRespiratorwithLowFaceVelocitytoRemoveUltrafinePa rticles (in order to remove the low-power respirator with low face velocity of ultra-fine grain) ", 350; The title submitted on November 26th, 2014 is the U.S. Provisional Patent Application No.62/085 of " LowPowerRespiratorwithLowFaceVelocitytoRemoveUltrafinePa rticles (in order to remove the low-power respirator with low face velocity of ultra-fine grain) ", 230; The title that on March 23rd, 2015 submits to is the U.S. Provisional Patent Application No.62/136 of " LowPowerFiltrationSystemforRoomAirCleanerUse (the low-power filtration system for room air cleaners uses) ", 986; The title submitted on July 2nd, 2014 is the U.S. Provisional Patent Application No.62/020 of " LowPowerRespiratorwithSerialFanConfigurationtoRemoveUltr afineParticles (in order to remove the low-power respirator with serial fan configuration of ultra-fine grain) ", 351; The title submitted on July 2nd, 2014 is the U.S. Provisional Patent Application No.62/020 of " LowPowerRespiratortoRemoveUltrafineParticlesandControlle rSystemTherefor (in order to remove low-power respirator and the controller system thereof of ultra-fine grain) ", 342; And the title of submission on July 2nd, 2014 is the U.S. Provisional Patent Application No.62/020 of " LowPowerRespiratortoRemoveUltrafineParticlesandFilterMed iaTherefor (in order to remove low-power respirator and the filter medium thereof of ultra-fine grain) ", 349.Each in the middle of these applications is all incorporated in this in full with for referencial use.

Technical field

The various aspects of present disclosure relate to purification of air, more particularly relate to the low-power for removing ultra-fine grain, malleation powered air purifying respirator.

Background technology

Air pollution is serious and the global problem of complexity.Be exposed to air pollution for a long time and may cause many negative health consequences (such as lung capacity loss, asthma, bronchitis, pulmonary emphysema and the cancer of some form may be also had).There is millions of people every year owing to being exposed to air pollution and dead.Although air pollution is defined by the DEP driven particle capture (" PM10 " classification) that diameter is less than 10 microns usually, the most dangerous DEP driven particle capture pollution category is PM2.5 classification, and it comprises the contaminant particle that diameter is less than 2.5 microns.The ultra-fine grain (" UFP ") being less than 0.1 micron (100nm) forms serious health risk, the health effect that its toxicity and causing may with enhancing exceeds outside respiratory system.The airborne disease of such as bacterium or virus disease and so on also forms worldwide health problem.When the serious of hyperinfection or the disease with life threat occur and disseminate in crowd, especially when described disease is had resistance for treatment or is difficult to be treated by existing therapy, foregoing problems is troubling especially.

General public usually depends on the dust-proof or Operation mask of passive type and provides for polluting and the protection of disease.But such face shield only provides basic protection, it is easy to seepage occurs and cannot filters UFP harmful especially.In addition, due to the resistance that filter medium causes, the user of this type of face shield usually must breathe than normal condition more at full tilt.This firmly reducing comfortableness and hindering long-time use additionally.Also easily there is carbon dioxide and steam accumulation in many traditional face shields, thus aggravates these problems.

Traditional electricabsorption air purifying respirator (" PARP ") equipment is also subject to the puzzlement of Similar Problems.In addition, such PARP equipment is comparatively heavy, expensive and usually apply for occupation only.It is worth mentioning that, such PARP equipment is not suitable for the protection for UFP, and is unpractical for routine use.

In view of foregoing and other Consideration, imagination and develop the various aspects of present disclosure.

Utility model content

Here described and claimed implementation solves above-mentioned problem by being provided for removing the system and method for ultra-fine grain from air.In one implementation, low-power air-purifying respirator is configured to utilize the main filter with composite filter media to filter a ultra-fine grain, and described composite filter media can not be provided exhaust (outgassing) by fold (pleated).Described respirator comprises at least one fan, and it provides malleation air-flow to main filter under low face velocity.At least one fan described can comprise the stacked tube-axial fan of multiple serial (axialfan), and it is configured to increase air pressure when not increasing flow.One or more safety-valve is arranged, so that anti-backflow and carbon dioxide accumulation during use along air flow path.Subscriber equipment can communicate with the controller in respirator, to control the operation of respirator.Described respirator can be connected to face shield by flexible pipe.

The utility model discloses a kind of respirator for being provided to by the air through purification in enclosure space, described respirator comprises: the outer cover with inner space; The tube-axial fan that multiple serial is stacked, it is configured to by air intake in the inner space of outer cover, and generates the hydrostatic pressure of at least 3 inches of water and be in the malleation air-flow of the air mass flow between 50 Standard Liters per Minute to 300 Standard Liters per Minute; Comprise at least one for removing the main filter module of the main filter of ultra-fine grain in the inner space being arranged in outer cover, described multiple fan guides positive pressure gas to flow through at least one main filter described to provide the air through purification; And pass the air outlet of outer cover, described air outlet flows down reception at positive pressure gas and carrys out the air through purification of autonomous filter module and be directed to described enclosure space by passing through the air purified.

According to an embodiment, described multiple fan is disposed in fan housing, and described fan housing has the air inlet being in described multiple fan upstream and the gas outlet being in described multiple fan downstream.

According to an embodiment, near the gas outlet in described fan housing, arrange diffuser, disseminate malleation air-flow on the surface of at least one main filter described.

According to an embodiment, described multiple fan provides malleation air-flow in the surface of at least one main filter described under low face velocity.

According to an embodiment, during described low face velocity, be less than 5 centimeters per seconds.

According to an embodiment, described respirator also comprises: for measuring one or more pressure sensors of the pressure along described malleation air-flow.

According to an embodiment, described multiple fan operates under one or more speed.

According to an embodiment, described one or more speed comprises low speed, middling speed and high speed.

According to an embodiment, described low speed is 100 Standard Liters per Minute, and described middling speed is 130 Standard Liters per Minute, and described high speed is 180 Standard Liters per Minute.

According to an embodiment, described multiple fan comprises upstream fan and downstream fan.

According to an embodiment, upstream fan rotates up in the side contrary with downstream fan.

According to an embodiment, the upstream helical angle of upstream fan is higher than the downstream helical angle of downstream fan.

According to an embodiment, upstream helical angle 8 to 10 degree higher than downstream helical angle.

According to an embodiment, described multiple fan comprises the two-stage axial wheel of reverse rotation.

According to an embodiment, described multiple fan is disposed between fore filter and at least one main filter module.

Here also describe and quoted from other implementations.In addition, although disclose multiple implementation, those skilled in the art detailed description from behind will recognize and other implementations of current disclosed technology wherein show and describe the illustrative implementation of current disclosed technology.Will be appreciated that, when not deviating from the spirit and scope of current disclosed technology, can modify current disclosed technology in all fields.Therefore, accompanying drawing and detailed description should be considered to be illustrative and nonrestrictive.

Accompanying drawing explanation

Fig. 1 shows the exemplary air filtration system comprising and be provided to user's electricabsorption air purifying respirator with it during operation.

Fig. 2 shows exemplary air filtration system.

Fig. 3 A and 3B depicts side perspective view and the rearview of exemplary power air-purifying respirator respectively.

Fig. 4 shows the interior views of electricabsorption air purifying respirator.

Fig. 5 shows the air flow path through the exemplary fan outer cover with diffuser (diffuser).

Fig. 6 A shows the decomposition view of exemplary filter module.

Fig. 6 B depicts another decomposition view of filter module, illustrated therein is main filter.

Fig. 7 A and 7B is through front view and the side view of the air-flow of filter module respectively.

Fig. 8 A with 8B respectively illustrates the main filter with parallel sensing and angled sensing.

Fig. 9 A-9C shows exemplary filter configuration.

Figure 10 shows exemplary composite filter media.

Figure 11 A-C depicts the exemplary combination of composite filter media.

Figure 12 shows exemplaryly has the main filter of fold.

Figure 13 A-C shows exemplary particle detector configurations.

Figure 14 shows the exemplary flexible pipe having and be tapered diameter.

Figure 15 shows the air flow path gone to through respirator in face shield.

Figure 16 A shows exemplary flexible pipe and face shield.

Figure 16 B is the detailed view of the far-end of flexible pipe.

Figure 16 C is the detailed view of the pressure sensor in the far-end of flexible pipe.

Figure 17 A and 17B respectively illustrates front perspective view and the rearview of exemplary face masks.

Figure 18 A shows another exemplary face masks of the detailed cross sectional view of the near-end of the flexible pipe with the receiver being connected to face shield.

Figure 18 B shows the rear perspective view of face shield and the detailed view of exemplary return valve.

Figure 19 shows the exemplary face masks not having return valve.

Figure 20 A and 20B shows to be had respectively at the respirator closing and open the return valve shown in sensing.

Figure 21 shows the exemplary face masks being connected to flexible pipe by headband.

Figure 22 shows the exemplary face masks with neck attachment.

Figure 23 depicts the block diagram of the example components of respirator.

Figure 24 shows example controller.

Figure 25 A-C respectively illustrates the front view of illustrative user device, bottom view and side view.

Figure 26 A and 26B respectively illustrates exemplary perspective view and the side cut away view of carrying shell for holding respirator.

Figure 27 is the exemplary computer system can implementing various system and methods discussed herein.

Detailed description of the invention

The various aspects of present disclosure relate generally to for removing ultra-fine grain (UFP) the air through purification to be provided to the air filtering system in enclosure space.In an aspect, described air filtering system comprises low-power air-purifying respirator, and it filters UFP with the correlation of the particle speed of the surface of (multiple) main filter with superior filtration and power efficiency by utilizing the collection efficiency of respirator.Described respirator comprises at least one fan, and it provides malleation air-flow to (multiple) main filter under low face velocity.At least one fan described can comprise the stacked tube-axial fan of multiple serial, and it is configured to increase air pressure when not increasing flow.Except removing UFP, described respirator also provides the protection for airborne pathogen.

In certain aspects, described enclosure space comprises the face shield being connected to respirator by flexible pipe.The malleation provided by respirator prevents the air of filtered from such as leaking in face shield when user's air-breathing, and decreases the work of breathing when wearing face shield.In addition, described face shield can comprise unidirectional outlet valve, to allow air to leave face shield with predetermined pressure, prevents the air of filtered from flowing in face shield simultaneously.Such as additionally can arrange return valve along air flow path in face shield, to prevent from carbon dioxide accumulation occurs during use.Therefore, the air through purification is provided to enclosure space safely, and the power efficiency of described air filtering system allows continuous print routine use.

In order to start detailed description exemplary air filtering system 100, with reference to Fig. 1-2.In one implementation, air filtering system 100 comprises and is configured to remove UFP to provide the electricabsorption air purifying respirator 102 through filtered air to enclosure space, and described enclosure space can be that (and being not limited to) is provided to user's face shield 104 with it by one or more band 110.As described herein, band 110 can be provided in multiple sensing, comprising and be not limited to one or more headband, neck attachment, the helmet etc. along the lower jaw profile of user.

In one implementation, one or more flexible pipe 108 is connected to respirator 102 face shield 104.Flexible pipe 108 can be dismantled from face shield 104 and/or respirator 102.In one implementation, flexible pipe 108 is tapered from during respirator 102 near mask 104, thus allows the power at low pressure through air filtering system 100 to decline.

Being tapered of flexible pipe 108 can also allow flexible pipe 108 to extend through the band carrying shell 114, described in carry shell 114 can be that (and being not limited to) postman's bag, briefcase, knapsack, handbag and being configured to is easy to carry other case and bag of respirator 102.Before being inserted into by flexible pipe 108 in the band carrying shell 114, flexible pipe 108 can be wound around with covering.Described covering such as can be formed by elastomer (spandex) or similar material, and comprises the attachment mechanism of such as shackle and so in pairs.

Carry shell 114 can comprise various pocket, opening, tap into panel (accesspanel) etc.For example, carry shell 114 and can comprise one or more ventilating opening 116, respirator 102 sucks extraneous air to filter by described ventilating opening 116.In one implementation, carry shell 114 and comprise pocket or the similar attachment mechanism in order to hold subscriber equipment 112.In another kind of implementation, subscriber equipment 112 comprises shell 120, and it has and carries shell 114 or user's attachment mechanism with it, such as clip, snap close, securing member, hasp, latch, hook etc. for being attached to by subscriber equipment 112.

Subscriber equipment 112 carries out communicating to control the operation of respirator 102 with respirator 102.Subscriber equipment 112 normally can carry out the computing equipment of mutual arbitrary form, such as mobile device, tablet device, personal computer, multimedia host, Set Top Box etc. with respirator 102.Subscriber equipment 112 can be communicated with respirator 102 by wired (such as USB (USB) cable 118) and/or wireless (such as Bluetooth or WiFi) connection.Except controlling the operation of respirator 102, subscriber equipment 112 can also be used to the performance of monitoring respirator 102, comprising filtration and collection efficiency, power consumption, system pressure, air mass flow etc.Subscriber equipment 112 also provides real time information about power level, fan speed, filter life and pressure alarm.

In one implementation, respirator 102 realizes lower than 10e under the low face velocity being less than or equal to 5cm/s ^-9high filter efficiency.Under such face velocity, respirator 102 have down to 0.01 micron 99.99999% filter efficiency.Respirator 102 filters the pathogen of UFP (such as lower than 300nm and down to 10nm and following) and similar size.Partly due to the gettering ability (inhalationcapacity) of user, traditional passive type face shield cannot realize comparable filtration.Less pore-size in such passive type face shield increases at the resistance that intake period attempts feeling when sucking air by respirator 102 greatly by causing user.Therefore, such passive type face shield cannot realize comparable filter efficiency for the particle size lower than 300nm.Consequently, traditional passive type face shield cannot filter the UFP lower than 100nm, it can be diffused into by the alveolar in lung in blood flow and to be deposited in brain or other vitals, thus cause or aggravate the diseases such as such as dementia, Alzheimer disease, and the pathogen that such as dangerous influenza virus, flu or size cannot be prevented to be less than other pathogen of 100nm invades.

Air filtering system 100 incorporates positive airflow, it provides better comfortableness during eupnea, and for the pollution caused due to the leak path around face shield 108, described leak path causes due to air-breathing or caused instantaneous suction gradient of breathing.For example, air filtering system 100 can send positive pressure air under the approximate flow be between 50 to 300 Standard Liters per Minute (" SLM ").

With reference to Fig. 3 A and 3B, illustrated therein is side perspective view and the rearview of respirator 102.In one implementation, respirator 102 comprises the outer cover 200 of the intraware in order to closed respirator 102.For example, outer cover 200 can comprise the frame with roof 204, diapire 202, sidewall 206 and 208 and rear wall 212.In one implementation, antetheca 210 is removable coverings, and it wraps up the intraware of respirator 102 when being attached or being fixed to frame outer cover.

In some implementations, wherein one or more walls 202-212 can be configured to have opening, goes to the tapping into of intraware to provide, provides air-flow of entering/leaving respirator 102 etc.For example, what roof 204 can comprise opening or other types taps into port, to allow to tap into and replace intraware (such as main filter module), and allows the air-flow leaving respirator 102, as described herein.In one implementation, what diapire 202 comprised opening or other types taps into port, to allow attachment/integrated air inlet net 214, and/or allows to tap into and replace other intrawares.Rear wall 212 can comprise additional covering (such as covering 216-220), for tapping into the compartment holding intraware.For example, covering 216 can be used to tap into fore filter, and covering 218 and 220 can be used to tap into battery.But will be appreciated that, more or less covering can be comprised, for tapping into multiple different intraware.

In addition, although the whole length of the removable covering 210 extend through frame outer cover illustrated in figure 3 a, present disclosure is not limited thereto.For example, in some implementation, one or more coverings that frame outer cover can be extended by some part along frame outer cover are partially enclosed, thus such as make the partially enclosed frame cover part comprising machinery and electrical system component of the first covering, and make the partially enclosed frame cover part comprising main filter module of the second covering.

Outer cover 200 can have various shape and size.For example, in a kind of specific implementation, the overall dimension of outer cover 200 is 260mm × 180mm × 56mm.In another kind of specific implementation, the overall dimension of outer cover 200 is 190mm × 130mm × 50mm.Will be appreciated that, these sizes are only exemplary, and outer cover 200 can be modified to adapt to greater or lesser size.For example, by keeping identical ratio, respirator 102 suitably can be operated by the certain percentage between 0 to 60% of these sizes of reduction.

Outer cover 200 can by lightweight and durable material structure.As limiting examples, the suitable material for constructing outer cover 200 comprises anodised aluminium, titanium, titanium alloy, aluminium alloy, fibre core stainless steel, carbon fiber, Kevlar ^tM, Merlon, polyurethane or any combination of material mentioned.

In one implementation, air enters respirator 102 by the air inlet net 214 at diapire 202 place adhered to or be integrated in outer cover 200 at first.Although air inlet net 214 is shown as disposed at the bottom of outer cover 200, present disclosure is not limited thereto, and the configuration of replacing and sensing also drop in the scope of present disclosure.For example, air inlet net 214 can be configured on any other wall 204-212.In one implementation, air inlet net 214 is the independent assemblies being attached to outer cover 200.In another kind of implementation, air inlet net 214 is integrated in outer cover 200 using as single component.Air inlet net 214 can by lightweight and durable material structure.

As described herein, air inlet net 214 provides for oarse-grained initial protection, and the lower resistance provided for the air of filtered enters.As shown in the figure, air inlet net 214 can along the random length of sidewall 206 and 208 slightly upward between extension 0.5 inch to 2.0 inches, even if thus when its be placed on by stop the most of hole being positioned at air inlet net 214 on diapire 202 surface on time, still allow air to enter respirator 102.

Be appreciated that in one implementation from Fig. 4, respirator 102 serves as the initial entry port that the air being provided for filtered enters respirator 102, and is therefore also the first section that bulky grain filters.The size of the opening of air inlet net 214 and spacing make each opening even as big as reducing the resistance for the air be inhaled in respirator 102, and are small enough to prevent very large particle from entering respirator 102.In one implementation, the normally parallel thickness of setting of the opening in air inlet net 214 and the cylinder of limited diameter.The parallel setting of described opening allows the linear reduction of the flow resistance directly related with number of openings and can not sacrifice minimum open dimension, and described minimum open dimension determines again the size of the particle being allowed to pass through described opening.

In one implementation, air is pulled in one or more fan 224 by air inlet net 214.In another kind of implementation, after entering respirator 102 by air inlet net 214, fan 224 is utilized to suck air by one or more fore filter 222.Fore filter 222 filters bulky grain, and it may be accumulated in potentially on fan 224 and/or main filter module 226 and/or to it and cause damage, thus by the service life of the main filter 230 in shortening filter module 226.

Fore filter 222 can have any suitable filter pore-size, and can be formed in fold or corrugationless configuration.For example, the pore-size of fore filter 222 can be from approximate 0.1 micron to 900 microns.Such pore-size and have the configuration of fold/corrugationless usually to produce low-down pressure drop.

Fore filter 222 can be formed by the multiple suitable filtering material be used in high efficiency particle capture (HEPA) class filter.For example, fore filter 222 can be formed by any combination of polytetrafluoroethylene (PTFE) (PTFE), PETG (PET), active carbon, Immesion active carbon or listed material.These materials can also alternatively with electrostatic.In one implementation, fore filter 222 is single fold or sheet of material.In another kind of implementation, fore filter and the common fold of the material desired by other or laminated together to obtain the benefit combined.As limiting examples, fore filter 222 can be configured to 0.5 micron of PET material together with fold common with active carbon, the impregnated activated Carbon Materials of potassium permanganate etc.In other implementations, fore filter 222 can comprise one or more hydrophobic layer, invades in system such as to minimize steam/water.Described (multiple) hydrophobic layer can have macrovoid size (such as approximate 1 micron diameter) usually.As an example, PET material can provide the filtration for 0.5 micron and larger particle, active carbon can provide for VOC (VOC), small acidity (SOx/NOx) gas molecule etc. filtration and remove smell/peculiar smell, and described hydrophobic layer can minimize the intrusion of steam/water.

Fan 224 is disposed near the air inlet 228 of main filter module 226.In one implementation, fan 224 is arranged by along the air path between fore filter 222 and main filter module 226.Fan 224 generates malleation air-flow, and it is by air inlet net 214 and by fore filter 222 air to be pulled into from outside main filter module 226 and to leave from air outlet 232.In one implementation, under described one or more fan 224 operates in high hydrostatic pressure (such as the water of 3-5 inch), and generate the high flow capacity up to 300SLM.In some implementation, in order to realize high efficiency for main filter module 226, fan 224 operates between approximate 50 to 300SLM.Under fan 224 may operate in friction speed, such as low speed (100SLM), middling speed (130SLM) and high speed (180SLM).

In one implementation, described one or more fan 224 comprises the multiple fans be in stacked tube-axial fan configuration (stacked) of serial.When being not intended to be bound by theory, different from parallel deployment (namely whole two fans are juxtaposed to each other), serial (stacked) configuration authorized pressure exports has additivity, and parallel deployment then causes the increase of bulk flow.In one implementation, fan 224 provides the running time more than 70000 hours.

Can by comprising in the laminated configuration of the two-stage axial wheel with reverse rotation the static pressure that multiple fan 224 increases respirator 102.In one implementation, provide two or more stacked fans 224 as previously described, it rotates in the opposite direction, and wherein upstream fan has the helical angle (pitchangle) of 8-10 degree more approximate than further downstream fan height.

According to some aspect of present disclosure, it is desirable to increase the total pressure of being sent by fan 224, thus make the air sent in air filtering system 100 can overcome the assembly (resistance object) causing the pressure loss in respirator 102 easily.The most traditional electric power respirator known in the art uses centrifugal fan, and it exports to solve the pressure loss at elevated pressures.But such centrifugal fan needs relatively a large amount of electric power to operate.On the other hand, by being connected in series arrangement by each fan 224, the respirator 102 of present disclosure utilizes a kind of method of high power efficiency to obtain the Output pressure exceeding enough degree from fan 224.Fan 224 has very high energy efficiency, and when multiple fan 224 is by series arrangement, while maintenance efficient electrical power is sent, provides very high Output pressure.

Any suitable fan design and configuration can be used in conjunction with present disclosure.For example, except fan power and output, fan arrangement can be selected based on fan blade size, shape, number, sensing, surface area etc.Pressure and revolutions per minute (RPM) square proportional.Cube proportional power caused with RPM increases by the increase of RPM.Higher RPM means higher pressure, and lower RPM means lower pressure, thus needs more multiple-blade.In one implementation, the number of fan blade does not have total blade table area important.Blade table area is the number that the surface area of single blade is multiplied by blade.

Sensing can also be included in consideration.For example, if fan blade is too close together, then enough air may be there is no between the blades to have sufficient performance.In one implementation, fan 224 is included in most advanced and sophisticated narrower fan blade to reduce air drag, and will widen towards wheel hub.The angle of fan blade can be minimized at most advanced and sophisticated place, and usually increases towards wheel hub.In this respect, in one implementation, the transition of the angle from the angle at tip to wheel hub can be gradually and/or level and smooth so that anti-backflow.

Air is directed in main filter module 226 by air inlet 228 by fan 224.Main filter module 226 can be configured to comprise one or more main filter 230 and optional (multiple) post-filter.In one implementation, the sensing of main filter 230 is parallel with airflow direction.In another kind of implementation, the sensing of main filter 230 is angled relative to airflow direction.In addition be also susceptible to other configurations and point to.In one implementation, main filter module 226 comprises pressure sensor entry port 238 and pressure sensor import 236, to measure the pressure in main filter module 226 during operation.Respirator 102 can also comprise pressure sensor chip 248, and it is configured to send pressure reading to be analyzed and record by controller 240 from respirator 102 outside.

As described herein, respirator 102 can comprise one or more fore filter 222, main filter 230 and post-filter.As limiting examples, one or more optional charcoal post-filter, one or more optional charcoal fore filter and one or more optional main filter 230 can be comprised.In certain aspects, post-filter can be added in system so as to improve such as suck VOC, may from the protection of any filter 220 or 230 or any exhaust using adhesive in systems in which to occur etc.Any suitable filtering material can be used as fore filter 222 and post-filter, wherein comprise the active carbon filtration material through suitable process as limiting examples, to prevent exhaust and to prevent from giving out fine particle from carbon filter itself.But any suitable filtering material can be used, and present disclosure is not limited to activated carbon.In addition, any suitable filtering material can be used as main filter 230, comprising and be not limited to composite filter media.

Such as limiting examples, main filter 230 can comprise the diaphragm material of any HEPA type, and it such as has the pore-size of 0.1 micron to 0.3 micron be made up of the inert material of any combination of PTFE, PET material, activated carbon, impregnated activated carbon or listed material and so on.These materials can also alternatively with electrostatic.In one implementation, main filter 230 is single fold or light sheet material.In another kind of implementation, main filter 230 and the material desired by other are by common fold or laminated together to obtain the benefit combined.As limiting examples; main filter 230 can be comprise the composite more than one deck filtering material; describedly utilize thermal gauge journey (adhesive-free) or binding agent based combination by common fold more than one deck filtering material, to adhere to one or more layers additional filtering material, loading material, activated carbon, impregnated activated carbon etc. for increasing system protection.In one implementation, use binding agent based combination, wherein adopt and there is low exhaust or the adhesive without exhaust.In other words, can by extra play is combined, common fold, lamination or be otherwise attached to suitable filtering material and form main filter 230.

In a kind of specific implementation, main filter 230 comprises and adds the stacked extra one deck ultra-high molecular weight polyethylene (UHMWPE) of filter to improve filter efficiency.Can be fixed by any suitable mode/in conjunction with each layer of main filter 230, as by thermal, stample fiber (crimping), adhesive etc.In some implementation, can by stample fiber edge and by being loaded into each layer that fold in collator (collator) comes in conjunction with main filter 230 together.In other implementations, the adhesive with the thickness range (such as 1 ounce every square yard) be between approximate 0.5 ounce every square yard to 3 ounces every square yard can be used.When being not intended to be bound by theory, adhesive may increase the resistance of main filter 230, thus may produce and increase the pressure drop of system.Therefore, in one implementation, UHMWPE barrier film is formed thin as far as possible.Alternatively or cumulatively, can reduce or remove any adhesive, to reduce pressure drop and the VOC reducing exhaust and therefrom give out.If desired, activated carbon can also be added to remove VOC (smell and chemical smoke).

In another kind of specific implementation, main filter 230 comprises multiple hot adhesion layer, comprising a PE/PET layer, activated carbon layer, a PTFE membrane layer, the 2nd PE/PET layer, the 2nd PTFE membrane layer, the 3rd PE/PET layer, the second activated carbon layer and the 4th PE/PET layer.Activated carbon layer removes VOC.

In one implementation, respirator 102 provides the particle speed being less than or equal to 5cm/s, 4cm/s, 3cm/s, 2cm/s or 1cm/s (face velocity) on the surface of main filter 230.Under such face velocity, corresponding to the collection efficiency of the main filter 230 in respirator 102 higher than 99.99%, 99.999%, 99.9999% or 99.99999%, its performance is better than traditional positive pressure respirator and filter far away.In addition, compared with the higher face velocity being such as greater than 5cm/s with use, use the face velocity being less than or equal to 5cm/s, 4cm/s, 3cm/s, 2cm/s or 1cm/s on main filter 230, also produce lower pressure to decline, this is useful (requirement such as fan 224 is lower) for overall system efficiency.

In one implementation, respirator 102 have down to 0.01 micron 99.99999% filter efficiency.Respirator 102 utilizes composite filter media with the flow through optimizing combinedly, to provide the air of high cleaning to one or more user under positive pressure, and no matter the output of its lung or size be how.Respirator 102 can up to and be greater than 300SLM (Standard Liters per Minute), 100-300SLM, 100-200SLM etc. flow under send positive pressure air.Allow the user with large lung volume to utilize respirator 102 like this under height force level, thus make to become the general-purpose platform that can use in high pollution urban environment and high particle occupation region.

Strict virus filtration efficiency (VFE) is carried out to main filter 230 and tests the validity that protection is provided for virus for confirmation.In implemented research, the virus being used to challenge main filter 230 is phage phi X174, and it is of a size of approximate 27nm and involved and send by aerosolized droplets.The average droplet size comprising virus is approximate 3 millimeters, and is being delivered by main filter 230 under the face velocity of normal system operation parameter more than 3 times.

These test conditions are strict for following reason: (1) phage phi X174 is neutral spheric granules, and it is subject to the electrostatic force impact of filter medium, thus makes it more easily by main filter 230; And the filter efficiency of (2) main filter 230 becomes inverse relationship (face velocity is higher, and efficiency is lower) with face velocity.Even if when extreme face velocity operating parameter, the filter result corresponding to main filter 230 remains extraordinary.The average virus filter efficiency corresponding to tested all filter mediums is 99.999991%, this far beyond 99.97% HEPA standard.As an example, consider the room having infected 1,000,000 virions.If user is subject to the protection of the respirator 102 comprising main filter 230, then virion (0.09) can not be had through main filter 230 thus infect user.On the contrary, in the same room using conventional HEPA filter, 300 virions will be had to pass thus infect user.

As described herein, except superior filter efficiency, respirator 102 also achieves the reduction of power consumption.As a rule, filter has a direct impact for the performance of power supply 242 and efficiency tool along with the function of time.For example, along with filter carries full particle, the overall resistance of filter will increase.When filter resistance increases, its need the more multi-energy from power supply 242 to export in case under without the flow/face velocity set under stress state drive fan 224.Therefore, in some implementations, described respirator comprises fore filter 222 to extend the life-span of main filter 230 and to reduce power consumption.Power supply 242 can utilize (and being not limited to) direct current (DC), exchange (AC), solar electric power, battery electric power etc.In a kind of specific implementation, power supply 242 comprises one or more lithium ion battery, and it can utilize DC15V power adapter to recharge.Battery in this example has the running time of 4.5 hours under under 100SLM 12.87 hours, under 130SLM 8.36 hours and 180SLM respectively.

In one implementation, the battery of power supply 242 can hot plug during the operation of respirator 102.For example, during use, if wherein the electricity of one or more battery is lower, then each piece of battery can be replaced separately when not closing respirator 102.Once battery is removed, most of power equipment can not operate, and only could be charged when disconnecting with equipment and being placed on independent Docking station from the battery of many power equipments.Respirator 102 does not have this restriction, and its battery can be charged when respirator 102 is in use.

In one implementation, controller 240 manages the power consumption of respirator 102 by the charging and discharging controlling one or more power supply 242.As described herein, controller 240 receives the input from the control on subscriber equipment 112 and/or respirator 102, and responsively activates one or more fan 224 to provide the air-flow by respirator 102 under different flows.In one implementation, subscriber equipment 112 is communicated with respirator 102 by connection 246 (such as wired connection or wireless connections).Controller 240 can also change the speed of fan 224 according to the charge level of power supply 242, and by electric connector 244, provided input electric power can be converted to suitable charging voltage for power supply 242 and electric current.Controller 240 also manages other operations of respirator 102.For example, respirator 102 can manage the status led (LED), the operation of one or more particle detector 252, the operation of one or more sensor etc. of the current mode showing respirator 102.Described LED can show when main filter 230 and/or other assemblies need to replace.In one implementation, one or more buckle (snap) 250 can be utilized to remove main filter module 226 to replace by roof 204.More particularly, main filter module 226 is spring loaded in respirator 102, by pushing buckle 250 and promoting so that main filter module 226 is ejected respirator 102 at main filter module 226, thus main filter module 226 can be removed slightly downward.In one implementation, power supply 242 and controller 240 are disposed in the outside of air flow path.

With reference to Fig. 5, in one implementation, fan 224 is comprised in fan housing 254, and it is arranged between air inlet net 214 and main filter module 226 by along air flow path.Fore filter 222 can be disposed between air inlet net 214 and fan housing 254.

In one implementation, fan 224 sucks air by the import 260 in fan housing 254, and from the outlet 262 fan housing 254, air is directed in the air inlet 228 of main filter module 226.Can utilize and be arranged in flowing through of fan 224 downstream and cross diffuser 256 air-flow is directed in main filter module 226.Described diffuser 256 comprises one or more surperficial 258, be spread out on main filter 230 its uniform stream, thus guarantee that the particle collected by main filter 230 can not be concentrated in any one section, thus increase main filter 230 and therefore also have overall service life of power supply 242.

With reference to Fig. 6 A-6B, illustrated therein is the decomposition view of main filter module 226.In one implementation, main filter module 226 is sufficiently sealed to allow suitably to filter the air polluted.Part I 300 and Part II 302 can be connected to form box body 308.In one implementation, packing ring 306 and O type ring 310 is utilized to carry out sealing box body 308.Packing ring 306 can be made of a variety of materials, comprising and be not limited to silicone or other rubber.

In one implementation, packing ring 306 is included in the groove 224 of Part II 302 along a pair longitudinal main body 318 that the length at edge 314 extends.Longitudinal main body 318 comprises the vertical tip at opening 316 place terminated in Part II 302.Part I 300 comprises corresponding opening 316, and the opening 316 in itself and Part II 302 together forms air inlet 228.Packing ring 306 also comprises and connects longitudinal main body and the horizontal main body 320 extended along pure air part 338, and extends along groove 224 and terminate at a pair arm 322 in the otch 332 in Part II 302.Part I 300 comprises corresponding otch 332, thus forms the opening entering into the air outlet 232 utilizing O type ring 310 to seal.

Therefore, packing ring 306 assembles around the whole edge 314 of Part II 302.After packing ring 306 is molded onto in groove 224, in one implementation, Part I 300 passes through packing ring 306 by clamp on O type ring 310, and utilizes ultra-sonic welded to be sealed to Part II 302.Will be appreciated that, other encapsulating methods can be used, comprising and the adhesive being not limited to such as hot melt, epoxy resin, ethyl chloroformate and so on alternative packing ring 306.In one implementation, box body 308 comprises screw post (screwpost) 312, and it serves as to prevent the mechanism for subsequent use of the bust caused due to the unforeseen event that such as packing ring 306 expands and/or adhesive breaks and so on.Although the integrality of described sealing is extremely important for whole box body 308, but want special concern pure air part 338, this is because be comprised in pure air part 338 until it is conducted through air outlet 232 for use through filtered air.

In one implementation, air outlet 232 comprises the pipeline 324 extended from surface 326.Surface 326 comprises the opening 330 that definition extends through pipeline 324, is directed in enclosure space by described pipeline 324 through filtered air.As described herein, when enclosure space is face shield 104, pipeline 324 can be connected to the far-end of flexible pipe 108.The size of opening 330 can mate the opening in the box body 308 formed by the otch 332 in part 300 and 302.In one implementation, surface 326 comprises the one or more threaded port 334 corresponding to the threaded port 336 on box body 308, for attachment air outlet 232.

As described herein, main filter module 226 can comprise one or more main filter 230, and it can be fixed in box body 308 combined or by other means.Main filter 230 can utilize any suitable adhesive to be incorporated in box body 308, is not such as vented or has the medical grade adhesive of low exhaust, emanation and smell.

In the example shown by Fig. 6 B, main filter 230 comprises two pleated filters be in parallel sensing.Main filter 230 is combined with the PET material edge extended around the whole circumference of box body 308.Main filter 230 utilizes the adhesive of such as hot melt, epoxy resin, ethyl chloroformate and so on to be incorporated in box body 308.The air insulated (that is seal completely and separate) of pure air part 338 and filtered, and be disposed in the outside of main filter 230, to allow the flow transition passing through filtration to air outlet 232.

Main filter 230 relative to each other can have multiple sensing in box body 308 inside.For example, main filter 230 can be angled to reduce the size of main filter module 226.When described angle equals 0 degree, main filter 230 is completely parallel.On the contrary, when described angle equals 90 degree, main filter 230 is completely vertical.Along with described angle increases, the loading of main filter 230 becomes and distributes more and more unevenly along main filter 230.As an example, the angle of 60 degree allows the effect of the uneven loading minimizing main filter 230 during use to minimize, and still provides size to reduce simultaneously.

In one implementation, main filter 230, and to be combined to allow main filter 230 is combined and is sealed to box body 308 by with the edge of materials of such as PET or PE (such as polyethylene or polyester) and so on to increase surface area by fold.As an example, for the maximum stream flow be such as between 100SLM to 200SLM (namely corresponding to the flow of the highest setting), the size range of main filter 230 can be between 1.38 square feet to 4.13 square feet.The size of filter can be determined based on the face velocity of air-flow and volume flow entering main filter module 226.In a kind of specific implementation, for pollution application, desired air-flow face velocity can be selected to and not exceed 1.3cm/s.

Equation below provides the filter face velocity of the function amassed as filter surfaces:

v＝QA _s

In this equation, v is filter face velocity, and Q is the volume flow of the air-flow entering filter, and As is the surface area of filter.

As discussed herein, in some implementations, respirator 102 keeps the particle speed (i.e. face velocity) of the surface of main filter 230 to be less than or equal to 5cm/s, 4cm/s, 3cm/s, 2cm/s or 1cm/s.This low face velocity can be realized by the surface area increasing main filter 230 at least in part, such as by the main filter of fold 230, use more than one main filter 230 etc.

In one implementation, face velocity is directly proportional to the volume flow (Q) of filter and is inversely proportional to surface area (As), as indicated in equation below:

The surface area (As) of main filter 230 greatly can be increased by fold.Expression formula below (for 1 filter) can be utilized to calculate the surface area of pleated filter:

In this equation, L is the length of pleated filter, and W is the width of pleated filter, and d is the pleat degree of depth, and #pleats/inch represents pleat density.Described equation shows, surface area is directly related with the pleat number be present on surface, and the quantity therefore by increasing pleat allows increase total body surface area and correspondingly reduce face velocity.

In one implementation, when another the main filter 230 with same size is coupling in configured in parallel, such be configured in the normal operating flow of 80-200SLM under usually will generate the face velocity being less than or equal to 1cm/s.Such face velocity and high-performance filtration filtration of material comprise the particles such as virus, bacterium, cell granulations, dust, pollutant, and little picornavirus and the rhinovirus arriving 30nm.

Fig. 7 A and 7B shows the air-flow by main filter module 226.After entering main filter module 226 by air inlet 228, air-flow by along by one or more Route guiding of main filter 230, was wherein combined before being exported by gas outlet 232 through filtered air in pure air part 338.

As described herein, main filter 230 can be directed under the different angles relative to the airflow direction from fan 224.For example, main filter 230 can be in configured in parallel 400, shown in Fig. 8 A relative to airflow direction.In a kind of specific implementation, main filter 230 has the diameter 402 of approximate 19mm respectively, and separates the distance 404 of approximate 15mm.As another example, main filter 230 can be in angled sensing 414, shown in Fig. 8 B.In a kind of specific implementation, the angle of main filter 230 makes to produce the sidewall 408 with approximate 2-3mm size and passes through for air bleed, and the distance between main filter 230 is tapered towards air outlet 232, at this place, the distance 412 of 11mm separated by main filter 230.Will be appreciated that, be also susceptible to other and point to and size.

With reference to Fig. 9 A-9C, illustrated therein is exemplary filter configuration.In some implementations, respirator 102 also comprises one or more optional fore filter and/or post-filter except one or more main filter.First with reference to Fig. 9 A, in one implementation, respirator 102 comprises the one or more fans 502 be arranged between the first fore filter 500 and the second fore filter 504.One or more main filter 506 is disposed in the downstream of the second fore filter 504, is thereafter post-filter 508.Following with reference to Fig. 9 B, in another kind of implementation, respirator 102 comprises the fan 502 be arranged between fore filter 500 and main filter 506, is thereafter post-filter 508.In the another kind of implementation shown by Fig. 9 C, respirator 102 comprises the fan 502 be arranged between the first fore filter 500 and the second fore filter 504, is thereafter main filter 506.

Post-filter 508 is such as sucking VOC, may providing protection from any filter 500,504 and/or 506 or any exhaust being used in the adhesive generation respirator 102 etc.Any suitable filtering material can be used as fore filter 500 and 504 and post-filter 508, comprising and the active carbon filtration material (charcoal) that is not limited to through suitably processing, to prevent exhaust and to prevent from giving out fine particle from carbon filter itself.In addition, any suitable filtering material can be used as main filter 506, comprising and be not limited to composite filter media as described herein.In one implementation, main filter 506 can be formed by the diaphragm material of any HEPA type, and it such as has the pore-size of 0.1 micron to 0.3 micron be made up of the inert material of any combination of PTFE, PET material, activated carbon, impregnated activated carbon or listed material and so on.These materials can also alternatively with electrostatic.In one implementation, main filter 506 is single fold or light sheet material.In another kind of implementation, main filter 506 and the material desired by other are by common fold or laminated together to obtain the benefit combined.

With reference to Figure 10; in one implementation; main filter 230 is the composite configurations 600 comprising multiple filtration material 604-612; it utilizes thermal gauge journey or binding agent based combination to be jointly corrugated into multiple pleat 614, to adhere to one or more layers additional filtering material (such as layer 606 and 610), loading material (such as layer 602,608 and 612), activated carbon (such as layer 604), impregnated activated carbon etc. for increasing system protection.

With reference to Figure 11 A-11C, illustrated therein is adhesive line implementation.In Figure 11 A, adhesive 616 can be applied along the summit of pleat 614.In the another kind of implementation shown by Figure 11 B, adhesive 616 can be applied along the lowest point of pleat 614.In the another kind of implementation shown by Figure 11 C, adhesive 616 can be applied along the top of pleat 614.Configuration shown in Figure 11 C keeps good pleat structure, reduces the resistance because adhesive 616 causes simultaneously and promotes the air-flow by main filter 230.In some implementations, binding agent based combination can be used, wherein adopt and there is low exhaust or the adhesive without exhaust.

In one implementation, main filter module 226 comprises the multiple main filter 230 that can be fixed to combined or by other means in box body 308.Main filter 230 can utilize any suitable adhesive to be incorporated in box body 308, such as medical grade adhesive, as described herein.In one implementation, described adhesive is not vented or has low exhaust, emanation and smell.

In one implementation, because respirator 102 is designed to send through filtered air to user, therefore wish that the material being arranged in air-flow is not such as emitted an odor or chemicals with the form such as VOC, fine particle by exhaust.The composite filter media of main filter 230 can utilize the inert material of such as PTFE or ePTFE and so on to construct, and utilize the heat treatment (instead of adhesive/chemicals) being used for mechanically adhering to each layer to be incorporated into the bearing bed of such as polyester and polypropylene and so on, thus provide low exhaust even without exhaust.In one implementation, as describing in further detail here, respirator 102 comprises the post-filter (such as charcoal filter) being in main filter 230 downstream, to solve any potential exhausting problem.In other implementations, such as can carry out pretreatment, to minimize following exhaust by heat treatment or similar process to main filter 230, fore filter 222 and/or easy any assembly that exhaust occurs.

Be understandable that from Figure 12, in a kind of specific implementation, main filter 230 is arranged in the fold configuration 700 of the width 702 with approximate 0.5 inch, the length 704 of approximate 6 inches and the height 706 of approximate 5 inches, thus provides per inch 6 pleats 614.When main filter 230 is coupling in configured in parallel with another filter with same size, under the normal operating flow of 80-200SLM, generate the face velocity being usually less than or equal to 1cm/s.In example implementations illustrated in fig. 12, main filter 230 provides the face velocity of the flow system flow of 120SLM and approximate 0.8cm/s.Will be appreciated that, fold configuration 700 is only exemplary, and it is contemplated that other configurations, size and parameter.

In one implementation, the operation of respirator 102 under low face velocity adds the use duration of main filter 230.In order to illustrate that face velocity and particle loaded are for the impact in the service life of main filter 230, consider example below.Suppose constant (linearly) loading speed, according to the various aspects of present disclosure, determine if send aerosol and be filled into 64g/m under the low face velocity of 0.5cm/s ², then the pressure drop of main filter 230 will increase by 300%.Under the PM10 level (this is the level of pollution exceeding Pekinese's average annual report PM10 level in 2010) equaling 150 milligrams/cubic metre, the main filter 230 long-pending for 3.45 square foot surface operated under 100SLM is supposed to use 6 hours every day, calculates user and reaches the time quantum that aforementioned load level institute will spend.Under these exemplary condition, main filter 230 will continue approximate 3798 days (approximate 10 years).Operation flow is reduced to 80SLM from 100SLM and the service life of filter can be extended to 4748 days (13 years) from 3798 days (10 years).Generally speaking, the high flow capacity bottom surface speed designs that respirator 102 is intrinsic greatly strengthen performance.

With reference to Figure 13 A-C, illustrated therein is exemplary particle detector configurations.In some implementations, one or more particle detector 808 is disposed between filter 804-806 and one or more fan 810.Inlet air flow 802 is entered by fore filter 804, goes out air-flow 812 and is left by fan 810.Particle detector 808 is configured to detect one or more, two or more or three or more particle detection level.For example, particle detector 808 can comprise three main detection levels, such as > PM2.5, PM2.5 and PM10.Particle detector 808 can utilize multiple technologies to detect the particle of various sizes, comprising and be not limited to laser particle counter, optical particle counter, TOF particle size determiner, inertia grader, low pressure micropore impactometer and/or light microscope.

In order to detect particle, fan 810 moves through the air polluted the section wherein arranging particle detector 808.In order to implement particle detection, online (in-line) gone out as shown in FIG. 13A can be used to configure 800, wherein particle detector 808 be arranged to air-flow in line, or the off-line (off-line) as shown in Figure 13 B and 13C configures 814 or 820, wherein particle detector 808 is arranged to not form straight line with air-flow.Off-line arrangement 814 and 820 comprise that air-flow is separated at this place 1: 816, and air-flow combined at this place before entering fan 810 1: 818.In off-line arrangement 820, particle detector 808 comprises the first detector 822 being arranged in the first filter 826 downstream and the second detector 824 being arranged in the second filter 828 downstream.

In one implementation, particle detector 808 measures the particle of the specific dimensions be present in air-flow.As a rule, detector 808 uses the filter 806 being in described measurement downstream to isolate the particle " counter " of interested particle size.For example, the particle of 2.5 microns is greater than in case it enters the accurate dimension of detector segments in order to measure PM2.5 level by needing filter 806 to have to isolate diameter.Will be appreciated that, except using except filter 806, described separation can be realized by multiple technologies, comprising and be not limited to whirlwind (cyclone) or virtual impact (virtualimpaction).

Once utilize filter 806 to filter the air-flow polluted, described air-flow just enters detector segments and is subject to laser wherein and irradiates.More particularly, interested aerosol particles is passed a section through wherein radiation source, and interacts along with described particle and light source, and it causes the scattering events of being collected by particle detector 808.The information of being collected by particle detector 808 is used to quantize the parameter of such as grain count (concentration) and particle size and so on.In one implementation, grain count can be determined by carrying out counting to the scattered light pulse of being collected by particle detector 808.Particle detector 808 determines particle size and shape by carrying out quantification to the intensity of scattered light.The information relevant with particle size and shape can be determined with whole two aspects of experiment (data fitting) from intensity data by utilizing the theory of Mie theory:

From observation and theoretical whole two aspects of Mie, know the size depending on particle from the luminous intensity importing particle scattering into a great extent carrying out self-emitting light source.The luminous intensity detected from scattering particles is not general purpose function, and can change form according to the ratio between particle size and optical source wavelength.In equation above, α is the sizing parameters as the item determined for the suitable expression formula used during the described theory of application.Usually this and the λ representing the optical wavelength used by the light source in described technology are compared.For the particle size much smaller than optical source wavelength, quantize scattering strength by the equation being referred to as Rayleigh scattering below from Mie theory.This scattering method will be applicable to drop on the particle in UFP (ultra-fine grain) size range (α << λ):

For the bulky grain of wherein (α >> λ), use the geometry scattering method simplified:

I＝I ₀(K _(n.θ))d ⁶

In one implementation, particle detector 808 comprises and is positioned at fore filter 804 upstream and the optical particulate sensor being positioned at air inlet net 214 downstream.As described herein, this sensor uses infrarede emitting diode (IRED) and phototransistor to detect fine particle by the pulse mode analyzing output voltage.The size of particle can be distinguished by comparing pulse mode.But will be appreciated that, other detection methods can be used to determine the contamination particle level of the air of access arrangement, comprising and be not limited to the scattering technology of such as Rayleigh scattering (being less than the particle of optical wavelength) and Mie scattering (larger particle) and so on, wherein can pick out particular particle size by suitably selecting source LED (wavelength).

(such as by subscriber equipment 112) can be used to from the data of particle detector 808 collection and provide the information relevant with the PM2.5 level in the region of this user to user or to another interested individual or agency.This is particularly useful for the region that wherein there is local PM2.5 peak value, the level that wherein said local PM2.5 peak value is reported much larger than the average air quality for its overall positions.As an example, the details relevant with the PM2.5 level of regional area can be used to determine the living condition (long-term and short-term) corresponding to given area, and affect people about the decision of living in such position.

As described herein, respirator 102 provides through filtered air to enclosure space, and described enclosure space can be such as face shield 104.With reference to Figure 14, illustrated therein is the exemplary flexible pipe 108 having and be tapered diameter.In one implementation, the diameter of flexible pipe 108 is tapered at near-end.This type of of flexible pipe 108 is tapered configuration and can be fixed by the band that carries carrying shell, thus it is inner and can not counteract user to make flexible pipe 108 remain fixed in band.In addition, be tapered described in provide compared with there is the flexible pipe of single larger diameter and declined by the power at low pressure of air filtering system 100.

In one implementation, be tapered configuration described in and comprise larger diameter flexible pipe 900 and small diameter flexible pipe 902.As an example, larger flexible pipe 900 can have the interior diameter of 0.75 inch, and less flexible pipe 902 can have the interior diameter of 0.58 size.Larger flexible pipe 900 is connected to the gas outlet 232 of respirator 102 by far-end 904, and less flexible pipe 902 is connected to face shield 104 at near-end 910 place, and described near-end 910 can comprise flapper valve, as described herein.In one implementation, laminar flow nozzle 906 is disposed in from the more great transition of flexible pipe 108 to less section 908.

Will be understood that from Figure 15, multiple sensor can be positioned on whole air flow path and to communicate with controller 240.In one implementation, controller 240 receives pressure reading, and utilize described reading to determine the pressure drop of each position, comprising and the flapper valve place be not limited in air inlet net 214 place, fore filter 222 place, main filter module 226 place (such as based on the gap between filter), post-filter place, flexible pipe 108 place, face shield 104 place and face shield 104.These sections may change due to geometry and limit and pressure drop occurs.

In one implementation, utilization equation below calculates the pressure drop corresponding to whole air filtering system 100:

Here, P _hthe hydrostatic pressure output of fan 224, P _irepresentative may cause each aspect of the respirator 102 of pressure drop.For example, utilize the pressure reading from each assembly detailed earlier herein, described equation will be:

P _H≥P _grats+P _prs+P _gap+P _filsr+P _post+P _tube+P _mask+P _flap

The summation of the pressure drop of each assembly can not exceed total hydrostatic pressure that fan 224 can produce.In one implementation, under fan 224 can operate in the pressure of 3 inches of water (Iw), and the upper limit operation with 4.8Iw exports.In addition, in one implementation, under respirator 102 operates in the normal discharge of 100 Standard Liters per Minute (SLM), and there is the maximum stream flow of 200SLM.

In one implementation, the pressure drop on filter (such as fore filter 222, main filter 230, post-filter etc.) can be used to determine subsequently the need of this filter of replacement.For example, along with filter is close to the end in its time limit in service life, reduced by the air-flow of filter, thus cause the pressure drop on filter to reduce.Once described pressure drop falls below certain threshold value, controller 240 can trigger the indicator that reminding user needs to change filter.In another kind of implementation, can combine with usage data and use barometric information, to determine whether better to need to change filter.

In order to start discussing in detail about flexible pipe 108 and face shield 104, with reference to Figure 16 A.In one implementation, flexible pipe 108 is included in and extends between far-end 912 and near-end 914 and to be configured to the elongate body 916 by being transported to face shield 104 through filtered air.Far-end 912 is configured to be in respirator 102 in air outlet 232 and connects, and near-end 914 is configured to be connected with face shield 104.Far-end 912 can be connected to air outlet 232 by any suitable mode, comprising and be not limited to threaded engagement, be clasped or reasonable connection that other are suitable.Elongate body 916 can be the tube chamber that extends through wherein of any flexible pipe, pipeline or have for other main bodys of conveying fluid and/or air.In one implementation, elongate body 916 is antitorque knot (anti-kinking).

Many traditional breathing apparatus have large and unhandsome flexible pipe, thus may hinder user's routine use.Therefore, flexible pipe 108 and face shield 104 equilibrium function and aesthetic feeling, to provide the system of the reality conforming with expectation used in everyday.In a kind of specific implementation, flexible pipe 108 has the interior diameter of approximate 22mm, the overall diameter of approximate 24mm, the wall thickness of approximate 1mm and is similar to the length of 24 inches.In another kind of implementation, the scope of interior diameter is from approximate 16.5mm to 38mm, and length range is from approximate 0.75 foot to 4 feet.Be susceptible to other sizes in addition.In addition, flexible pipe 108 can have multiple inside and outside Aesthetic Characteristics, comprising and be not limited to color, design, shape, figure, texture, translucent surface, transparent surface, opaque surface and other features.For example, flexible pipe 108 can have level and smooth inside and undulatory outside, and has limpid or coloured outward appearance.In addition, in one implementation, flexible pipe 108 and/or face shield 104 comprise and can such as utilize subscriber equipment 112 to control (such as by LED or other displays) to change one or more surfaces of outward appearance.

In one implementation, air filtering system 100 is used in colder weather or during colder weather and uses, and flexible pipe 108 comprises the Resistive heating element of the inside of the corrugated exterior portion section being wound around or being otherwise wrapped in flexible pipe 108.

With reference to Figure 16 B, which provide the detailed view of the far-end 912 of flexible pipe 108.As discussed herein, far-end 912 can be connected to respirator 102 by any suitable mode, comprising and be not limited to threaded engagement, be clasped or reasonable connection that other are suitable.For example, as illustrated in figure 16b, far-end 912 can comprise the one or more contact pins (prong) 922 for engaging the corresponding receiver in respirator 102.

In one implementation, far-end 912 comprises pressure sensor 918, and it is configured to be connected to the pressure sensor chip 248 of respirator 102 and interface with it.In one implementation, pressure sensor 918 comprises multiple pins 920 of the corresponding female end receiver be configured in activating pressure sensor chip 248.The pressure reading obtained in flexible pipe 108 and/or face shield 104 can be sent to controller 240 as described herein by pressure sensor 918 and pressure sensor chip 248, for analysis and feedback, such as the adjustment of the operating parameter of respirator 102 or by subscriber equipment 112 reminding user.

In one implementation, flexible pipe 108 comprises force pipe 926, and it is connected to pressure sensor 918 and extends through the length of tube chamber 924 along flexible pipe 108, and wherein force pipe 926 and face shield 104 interface are to measure the pressure of face shield 104 inside.The outer diameter dimension of force pipe can make the pressure drop of flexible pipe 108 to be increased large quantity.

With reference to Figure 16 C, which provide the detailed view of pressure sensor 918.As shown in the figure, in one implementation, force pipe 926 extends past the length of tube chamber 924 to measure the pressure in face shield 104.Force pipe 926 is connected to the mask pressure pipe 932 in pressure sensor 918, to obtain the pressure reading from face shield 104 inside.Pressure sensor 918 also comprises the external pressure pipe 928 measuring external pressure.

With reference to Figure 17 A and 17B, in one implementation, face shield 104 comprises the framework 1000 forming enclosure space 1004, will can be provided to wherein by the receiver 1006 of the near-end 914 being connected to flexible pipe 108 through filtered air.For the comfortableness between the operating period, face shield 104 can provide cushion 1002 in the user's part with it that is positioned at of framework 1000.

Face shield 104 can be formed by multiple material, comprising and be not limited to plastics, fabric, glass, pottery, metal etc.In one implementation, face shield 104 is made up of respirable and comfortable fabric type material.In another kind of implementation, framework 1000 is made up of rigid plastics, and is coated with removable fabric cover (covering 1012 such as shown in Figure 18 A).It can be removable multiple Aesthetic Characteristics that face shield 104 can comprise.For example, face shield 104 can comprise multiple color, design, shape, figure, texture, surface and other features.

In one implementation, face shield 104 comprises one or more safety-valve (such as outlet valve 1008 as described herein, side valve 1010 and return valve).Outlet valve 1008 can be the mouth front being in user be arranged in flapper valve on framework 1000 or other one-way cocks.In one implementation, outlet valve 1008 and side valve 1010 allow air under low pressure to enter face shield 104, but do not allow extraneous air to be back in face shield 104.In addition, for the outlet valve 1008 in mouth front being arranged in user, outlet valve 1008 allows sound wave freely to leave face shield 104 instead of is subject to the obstruction of framework 1000.Therefore, outlet valve 1008 allows user effectively to communicate.

With reference to Figure 18 A to 18B, in one implementation, return valve 1016 is disposed in face shield 104 with the receiver 1006 of the junction of flexible pipe 108.Return valve 1016 can be single admission flapper valve or other suitable one-way cocks.Return valve 1016 allows air (such as in case of a system failure) under zero-pressure to enter face shield 104, but air return will not be allowed to go out and enter into flexible pipe 108.

In one implementation, return valve 1016 comprises the surface 1020 with the otch 1022 be defined in wherein, so as the airway 1018 allowing to be connected to force pipe 926 from this through.At tie point 1014 place, force pipe 926 is mounted in airway 1018, to be communicated with pressure sensor 918 by the air in the enclosure space 1004 of face shield 104.Mask pressure path is shown by the arrow in Figure 18 A.

Return valve 1016 prevents carbon dioxide from accumulating in flexible pipe 108.In one implementation, return valve 1016 has the low-down opening pressure (crackingpressure) of such as approximate 0cmH20.Although the opening pressure of return valve 1016 can be minimized for the consideration of energy ezpenditure, the function of air filtering system 100 does not also rely on described opening pressure, and the decline on return valve 1016 can up to 1.78cmH20.

Be appreciated that another kind of implementation from Figure 19,20A and 20B, the receiver 1006 of face shield 104 comprises the nothing entering into enclosure space 1004 and covers opening 1024.In other words, face shield 104 does not comprise return valve 1016.On the contrary, in order to prevent carbon dioxide at face shield 104 and/or flexible pipe 108 built up inside, in one implementation, return valve 1100 is connected to the O type ring 310 in the air outlet 232 of respirator 102.

Return valve 1100 should have minimum impact for the resistance of air current flow.Therefore, in one implementation, return valve 1100 comprises the baffle plate 1102 of stopper rib (stoprib) and the hinge 1104 with simulation, thus produces the valve of gateway style, thus reduces the resistance for air-flow.Will be appreciated that, return valve 1100 can be the valve of any type being configured to anti-backflow, comprising and be not limited to umbrella shape, duckbill (duckbil1), butterfly and ball valve.In addition, return valve 1100 does not need to realize perfect sealing, therefore can also use the square position (flatdisc) of the inert material of such as silicone and so on for return valve 1100.As described herein, return valve 1016 and 1100 eliminates the carbon dioxide accumulation of face shield 104 inside, thus such as wears face shield 104 and respirator 102 user and close (thus fan 224 is not in operation) time and prevent from suffocating.Together with outlet valve 1008, side valve 1010, return valve 1016 or 1100 prevent carbon dioxide from accumulating in flexible pipe 108, and the major part in the middle of any existing carbon dioxide is all discharged by valve 1008 and 1010 when user exhales from face shield 104.

For other exemplary configuration of face shield 104 and flexible pipe 108, with reference to Figure 21 and 22.As shown in Figure 21, in one implementation, flexible pipe 108 can extend to the side attachment thing of face shield 104 from respirator 102, it also serves as band 110.Face shield 104 can be made up of elasticity soft rubber, and it allows air to pass through to face shield 104 at the opening of the junction, side of band 110.The side of band 110 connects can comprise one or more return valve to help prevent the C02 of exhalation to accumulate in flexible pipe 108 and/or band 110, as described herein.Face shield 104 can also comprise outlet valve 1008.Exemplary configuration shown in Figure 21 makes the visible flexible pipe 108 bottom from face shield 104 minimize, thus provides the product having more aesthetic appeal.This configuration is also convenient to be used by child and baby, this is because flexible pipe 108 is not in scope within reach, and can not be wound around the neck of user easily.Due to the obstruction without flexible pipe 108, therefore this configuration also may for such as needing the user of more freedoms of movement to be useful during body movement.

With reference to Figure 22, band 110 is configured to neck attachment, and wherein face shield 104 adheres to along the neck of lower jaw profile by user, thus makes to adhere to band and can not disturb with the hair of user or ear, and provides the product having more aesthetic feeling.

In order to continue the detailed description of the assembly about respirator 102, with reference to Figure 23.As described herein, main filter module 226, when being coupled with the flow that the process from fan 224 is optimized, filters UFP with superior filtration and power efficiency.In one implementation, main filter 230 is made up of the macroreticular of interval non-woven fiber closely, and described non-woven fiber is made up of the material of such as PTFE or PET and so on.Described fiber has special diameter, porosity (ratio of fibre number and space number) and thickness, and it is all contributed to some extent for overall filtration effect or " powder collection " efficiency.Can catch or collect particle in main filter 230 and other fore filters and post-filter by four kinds of mechanism, wherein three kinds of mechanism are mechanical, and another kind is electric.In one implementation, described four kinds of seizure mechanism are: inertial impaction (large particle is transferred in filter fiber owing to following air-flow), interception (particle is blocked/is captured between filter fiber), diffusion (particle is small enough to interact to the air molecule in filter fiber with " random walk (randomwalk) "), and electrostatic attraction (fiber charged and collection with the particle of opposite charges).

Be appreciated that respirator 102 comprises the multiple electric assembly of the operation for controlling air filtering system 100 from Figure 23.In one implementation, respirator 102 comprises controller 240, one or more input equipment 1202, one or more output equipment 1204, power supply 1200 (than power supply 242 as described herein) and one or more fan 224 (than stacked serial tube-axial fan as described herein).

Controller 240 receives electric power from power supply 1200, and management goes to the electric power distribution of each other assemblies in respirator 102.In one implementation, controller 240 provides electric power to fan 224 according to user's input and provides the signal showing mode of operation to output equipment 1204.Controller 240 accepts user's input by input equipment 1202, and determines the operation of respirator 102.Specifically, user can handle input equipment 1202 with the speed making controller 240 change fan 224, and therefore changes the flowing through filtered air going to face shield 104.

In one implementation, input equipment 1202 is configured to allow user to handle the operation of respirator 102.Input equipment 1202 can comprise the electromechanical equipment of such as switch or button and so on, or can comprise the electronic equipment of such as touch-screen and so on.Input equipment 1202 can utilize wired or wireless connection to be directly connected to controller 240.In one implementation, input equipment 1202 comprises any control in subscriber equipment 112 and/or face shield 104, flexible pipe 108 and/or respirator 102.For example, input equipment 1202 can comprise the side single button outwardly from respirator 102, its can by touch find and not actual needs see this button.Described button is triggered by extruding, and can comprise the contour shape making to point and naturally rest on button center.

Input equipment 1202 can also run by processing execution to generate the application of graphical user interface (GUI), and it accepts user's input by touch-screen or other input methods, as described herein.In one implementation, input equipment 1202 can be used to open and close respirator 102, select desired by fan speed, change the aesthetic feeling (such as utilize LED or be configured to one or more displays of Display designing, color and/or figure) of respirator 102.

In an example, under low, the high setting of neutralization that respirator 102 is configured to operate in corresponding to fan 224.Input equipment 1202 provides the medium making user select fan speed.In one implementation, input equipment 1202 is the buttons providing signal when being pressed to controller 240.Controller 240 receives described signal and is configured to circulate through various operator scheme.

Output equipment 1204 can comprise can provide vision to user, can listen and/or tactile feedback with any equipment of the state or situation that show respirator 102.Output equipment 1204 and input equipment 1202 can be subscriber equipmenies 112.In one implementation, output equipment 1204 receives from respirator 102 and shows the signal of state, and provides output for user.The signal provided by controller 240 can comprise the analog or digital signal for passing on described state or situation.

In one implementation, output equipment 1204 comprises one or more prompting, and it is configured to show, and whether respirator 102 is activated, the current state of electric power supply apparatus 1200, change filter indicator, the current fan speed of respirator 102 and/or any other correlation behavior.In this embodiment, controller 240 can provide analog voltage signal to light the LED corresponding to described state.For example, LED can be configured to comprise the instruction of electric power electric charge, energising instruction, fan speed instruction and change filter instruction.Energising LED can comprise the LED of single white or other colors, and it shows when respirator 102 is energized.

The instruction of electric power electric charge can comprise one group of five monochromatic LED, and it is used to the current charge level showing power supply 1200.When power supply 1200 is close to 100% electric charge, all five LED are lit.When power supply 1200 drops to 80% electric charge, four LED are lit; When power supply 1200 drops to 60% electric charge, three LED are lit; When power supply 1200 drops to 40% electric charge, two LED are lit; And when power supply 1200 drops to 20% electric charge, a LED is lit.

Fan speed instruction can comprise three monochromatic LEDs.When fan speed is set to low speed, single LED is lit; When fan speed is set to middling speed, two LED are lit; And when fan speed is set to high speed, three LED are lit.Change filter indicator and can comprise a dual-colored LED, it is closed when filter is in acceptable situation, is amber or yellow, and takes on a red color when main filter 230 replaced by needs when fore filter 222 replaced by needs.

In another kind of implementation, output equipment 1204 comprises the display of such as liquid crystal display (LCD) screen and so on, its display word or other graphical indicators for exporting.In this case, controller 240 will provide suitable data signal for showing state over the display.In some cases, described LCD can be on subscriber equipment 112 or other remote equipments.

As described herein, when utilizing subscriber equipment 112 or other computing equipments, described computing equipment both can serve as input equipment 1202 also can serve as output equipment 1204.As previously mentioned, output equipment 1204 can comprise computing equipment, and such as smart phone, tablet PC and operation are configured to receive input from user and show the personal computer of the application of current state to user.In one implementation, subscriber equipment 112 generates GUI, and it had not only allowed user control the operation of respirator 102 but also allow the current state of its display respirator 102.In this embodiment, output equipment 1204 can be connected to controller 240 by wired or wireless connection.

Output equipment 1204 can also comprise the loudspeaker of the audible tone that can produce for showing state.In this embodiment, controller 240 is configured to provide analog signal to output equipment 1204, and it makes the sound desired by loudspeaker is play or a series of sound.In another example, output equipment 1204 can involving vibrations equipment, and it can be provided for the signal producing different vibration mode according to state.

In one implementation, controller 240 is configured to the operation managing fan 224, and described fan 224 sucks air by filter and provides clean air to user.Controller 240 is configured to from power supply 1200 draw power, from input equipment 1202 receive input, provide electric power to fan 224, and on output equipment 1204 driver output.Controller 240 can utilize multiple computing equipment to implement.For example, controller 240 can utilize all-purpose computer or utilize less embedded system to implement, and such as utilizes microcontroller, microcomputer, field programmable gate array (FPGA) or other integrated circuits or electrical combination.

With reference to Figure 24, provide the more detailed description about controller 240.In one implementation, controller 240 comprises the battery manager 1208 of the charging and discharging for controlling one or more battery be included in power supply 1200,1214 are inputted corresponding to the signal of input equipment 1202 or at least one switch of other communications for receiving, for show or send respirator 102 state at least one export (such as LED driver 1216), and correspond to the electric power output equipment of each fan 224, such as supplying the pulse-width modulator (PWM) 1210 of electric power signal for each fan 224.

PWM1210 can be configured to output power signal under a certain frequency in the frequency range used by fan 224.For example, when being supplied the input of 25kHz electric power, fan 224 can operate under peak performance.Therefore, under PWM1210 can be operated in the frequency of 25kHz by controller 240.In addition, the dutycycle by changing PWM1210 can change the speed of fan 224.For example, low setting can be set at 10% dutycycle, and middle setting can be set at 50% dutycycle, and high setting can be set at 100% dutycycle.

The output of PWM1210 is decided according to user's input and/or battery manager 1208.In an example, when respirator 102 is closed, the button of the input be connected on controller 240 can be pressed to activate respirator 102.Various fan speed can be circulated through by additional button press.For example, the pressing again for described button can cause controller 240 to activate PWM1210 under such as 10% dutycycle, thus drives (multiple) fan 224 under the low speed.Pressing again for described button can cause controller 240 that dutycycle is brought up to 50%, thus drive (multiple) fan 224 at moderate speed, and another pressing for described button can cause dutycycle to bring up to 100%, and drive fan 224 at high speeds.Additional button press can continue to circulate through various fan speed.In an example, the pressing each time for button causes fan speed from circulated at low velocity to middling speed, at a high speed, middling speed and get back to low speed.In this embodiment, can by pressing button and keeping the certain predetermined time (such as a few second) and respirator 102 of stopping using at any time.In another example, press each time described button cause fan speed from circulated at low velocity to middling speed, at a high speed, again to closedown respirator 102.Controller 240 can also reduce the dutycycle of PWM1210 automatically according to the current state of the power supply 1200 of being monitored by battery manager 1208, to extend operation.

In one implementation, battery manager 1208 is determined batteries charge level, predicts battery life and is utilized when respirator 102 is connected to power supply AC/DC converter to manage the charging of battery.Battery manager 1208 can be configured to the fan speed cancelling user's selection, and reduces fan speed according to the availability of present battery life-span or other power supplys.For example, if battery life drops to below certain threshold value and fan speed is set at a high speed, then just fan speed to be reduced to middling speed automatically once reach charge threshold controller 240.Similarly, if fan speed is set to middling speed and battery charge falls below Second Threshold, then controller 240 can be reduced to low speed automatically fan speed.

In one implementation, battery manager 1208 comprises charger and is configured to controller to be connected to one or more battery.Charging and discharging while each piece of battery supported by described charger.In an example, described charger comprises the single charger level being connected to each piece of battery by charging MUX (multiplexer).Charging MUX is configured to allow to share charging current between each block battery, prevents the Charger transfer between battery simultaneously.When charging to single battery, battery manager 1208 regulates the total current of being supplied by charger, so that coupling is suitably to the electric current needed for described battery charging.When have charged more than one piece of battery time, battery manager 1208 compares for the charging current desired by charging for each block battery.Minimum charge current is provided for each block battery subsequently by charging MUX.In this embodiment, battery manager 1208 does not allow charging current to exceed electric current needed for any battery.Charging operations operates independent of remaining, as long as thus respirator 102 is attached to external power feeding mechanism, then no matter respirator 102 is unlocked or cuts out and all allows to charge to battery.

Controller 240 can also be configured to the state of monitoring filter and provide feedback to user.In one implementation, when controller 240 recording filter is replaced, and is followed the tracks of filter use by the time quantum used by recording respiration device 102.So when filter uses close or life expectancy time limit that is that exceeded filter, can prompting be generated.The time quantum that can also be operated under each speed by recording filter carrys out adjusted filter usage data.Once reach filter to use restriction, the indicator for changing filter just can be activated.For example, a LED can be lighted to show to need to change filter.In another example, a three-color LED can be used to show that filter is good, needs are replaced very soon or need to be replaced immediately.Described indicator can also be triggered on subscriber equipment 112 or other remote equipments.

In specific implementation, respirator 102 has the four kinds of operator schemes determined by controller 240.Described pattern comprises " shut " mode", has the open mode of illumination LED, the open mode without illumination LED and on-warning mode.In this embodiment, " shut " mode" is the very lower powered pattern being similar to standby mode.Respirator 102 only consume low amounts of power when being under " shut " mode", and operation is limited to identification is receiving input from input equipment 1202 and opening.Once receive input, respirator 102 just enters the powered-on mode with illumination LED.In this mode, respirator 102 will accept fan-speed settings's change and the order for power-off.LED will be lit to pass on the state of respirator 102, such as, show that fan speed, battery charge and filter are the need of being replaced.Under the powered-on mode without illumination LED, fan 224 is maintained at its present speed, and the order that controller 240 uniquely will identify is power-off.When respirator 102 be in wherein a kind of open mode and go wrong time, alerts triggered pattern.For example, on-warning mode can be activated when the batteries are low.In this case, low battery LED can be lit or start flicker.Similarly, when filter needs to be replaced, a LED can be lighted.

In a kind of specific implementation, controller 240 comprises the input of DC electric power and is configured to provide for the input of reversed polarity electric power the protection circuit of protection.When being connected to outside DC electric power supply apparatus, the operation that controller 240 had both controlled respirator 102 also controls the charging of battery.In order to charge to battery, the voltage of each block battery measured by respirator 102, and utilize a series of MOSFET or other switch control rule charging currents.Once DC electric power supply apparatus is disconnected, controller 240 is just switched to from battery draw power.In this embodiment, controller 240 comprises two micro controller units operated in master/slave configuration.Subordinate microcontroller is configured to control output equipment 1204, is by lighting multiple LED to show the signal of current operation status for LED driver 1216 for being applied in this example.Subordinate micro controller unit is also configured to receive the input from input equipment 1202, and it is switch 1214 in this example.Leading micro controller unit is configured to manage the charging of battery, and comprises PWM and export for the suitable electric power of fan supply.

In various implementations, the assembly of controller 240 is divided between polylith circuit board.For example, mainboard can comprise microcontroller, pressure sensor, loudspeaker and other assemblies various, such as voltage regulator, for preventing several choke coils of overcurrent, ON/OFF controller, battery charger (comprising battery manager 1208 and charging circuit).Second controller plate can comprise user interface circuit, such as microcontroller, LED, loudspeaker and diagnostic port interface.Will be appreciated that, these assemblies are only exemplary, and are susceptible to other configuration and assemblies.

For detailed description reference Figure 25 A to 25C of subscriber equipment 112.In one implementation, subscriber equipment 112 comprises the primary buttons 1300 promoted for the control of respirator 102.As described herein, primary buttons 1300 can be used to activate respirator 102, circulate through various fan speed and inactive respirator 102.Equally as described herein, subscriber equipment 112 comprises the connection 1302 for communicating with controller 240.Connecting 1302 can be wired or wireless connection.Subscriber equipment 112 communicates with controller 240 to provide the various states of the operating parameter about respirator 102.For example, subscriber equipment 112 can comprise: power indicator 1304, and it has one or more LED1306 of the state showing power capacity; ON/OFF indicator 1308, it has according to respirator 102 is the one or more LED1310 opening or close and be lit; Low pressure alarm, it utilizes pressure alarm button 1312 to be activated and utilizes one or more LED1314 to show; Fan speed indicator 1316, it has the one or more LED1318 showing fan speed; And filter status indicator 1320, its have show filter the need of replace one or more LED1322.Be susceptible to other visions in addition, can listen and/or tactile feedback indicator.In addition, subscriber equipment 112 can run the application for controlling, monitoring and/or manage one or more respirator 102 and corresponding data.

In some implementation, respirator 102 can be mounted to and carry in shell 114, and it comprises one or more and carries band 1402 to be easy to use, as shown in Figure 26 A and 26B and here described.Carry shell 114 and can be configured to postman's bag, briefcase, knapsack, handbag, stern bag, suitcase, occupation or Casual Bags, school bag etc.In one implementation, carry shell 114 and comprise one or more inside and outside pocket.For example, carry shell 114 and can be configured to have internal pocket 1406, it is designed to hold respirator 102.In another kind of implementation, the size of carrying shell 114 can be determined to be and be used for more specially holding respirator 102, and has one or more optional additional storage pocket.In addition, size can be carried out determine to the described shell/knapsack that carries, formalize and design according to the physical characteristics of user and aesthetic feeling preference.

As described herein, flexible pipe 108 can extend through carry shell 114 carry band 1402, and extend to the inside of carrying shell 114, to be connected with respirator 102 through opening 1404.Carry shell 114 can also comprise various pocket, vent openings 116, tap into panel etc.

In one implementation, pocket 1406 is formed by the liner 1408 comprising sound and impact absorbing material, to protect respirator 102 and to minimize any sense of touch or sense of hearing interference that may cause user due to the operation of respirator 102.Will be appreciated that, other regions of carrying shell 114 also can alternatively or cumulatively comprise such material.

With reference to Figure 27, which provide the detailed description about exemplary computer system 1500, it has the one or more computing units can implementing various system and methods discussed herein.Computing system 1500 goes for subscriber equipment 112, respirator 102 or other computing equipments.Will be appreciated that, the specific implementation of these equipment can have different possible concrete computing architectures, here not concrete all these frameworks of discussion, but it will be understood to those of skill in the art that.

Computer system 1500 can be can perform computer program to perform the general-purpose computing system of computer disposal.Can be input in computer system 1500 by data and program file, it reads described file and performs program wherein.Figure 27 illustrates the some of them element of general-purpose computing system 1500, wherein processor 1502 is shown as having I/O (I/O) part 1504, CPU (CPU) 1506 and memory 1508.Can have one or more processor 1502, thus make the processor 1502 of computer system 1500 comprise single CPU 1502 or multiple processing unit, it is commonly referred to as parallel processing environment.Computer system 1500 can be the computer of traditional computer, distributed computer or any other type, as by cloud computing or other network architectures can one or more outer computer.Current described technology is implemented alternatively in software equipment, described software equipment is loaded in memory 1508, is stored in and transmits on the DVD/CD-ROM1510 or memory cell 1512 of configuration and/or by wired or wireless network linking 1514, thus the computer system 1500 in Figure 27 is transformed into the special purpose machinery for implementing the operation described.

I/O part 1504 is connected to one or more user interface facilities (such as keyboard 1516 and display unit 1518), memory cell 1512 and/or disk drive unit 1520.When flat board or smart phone device, may not physical keyboard be there is, but there is the touch-screen of the keyboard with touch screen of Practical computer teaching.In general, disk drive unit 1520 to read the DVD/CD-ROM driver of the DVD/CD-ROM1510 usually comprising program and data 1522.The computer program comprising the mechanism in order to realize the system and method according to current described technology can reside in memory portion 1504, reside on disk storage unit 1512, reside in the DVD/CD-ROM1510 of computer system 1500 on or reside in and have on the External memory equipment of this type of computer program, comprising one or more data base administration product, web server product, application server product and/or other component softwares added.Or can by optical drive unit, flash drive unit, magnetic drives unit or other storage media drive unit substitute or supplementary disk drive unit 1520.Similarly, can utilize random access memory (RAM), magnetic storage, optical memory and/or usually find in smart phone and tablet device other may the memory of based semiconductor of forms substitute or supplementary disk drive unit 1520.

Network adapter 1524 can be connected to network computer system 1500 by network linking 1514, and computer system by network reception instruction and data and/or can send file system operation request.The example of such system comprises personal computer, the computing system based on Intel or PowerPC, the computing system based on AMD and runs based on windows, other system based on UNIX or other operating systems.Should be understood that, the equipment of computing system all right specific implementation such as terminal, work station, mobile phone, tablet device or panel computer, multimedia host, game host, Set Top Box and so on.

When being used in LAN networked environment, computer system 1500 is connected to local network via the network interface of the communication equipment as a type or adapter 1524 (by wired connection or wireless mode).When being used in WAN networked environment, computer system 1500 generally includes modem, network adapter or the communication equipment for being set up any other type communicated by wide area network.In networked environment, the program module described about computer system 1500 or its some part can be stored in remote memory storage device.Will be appreciated that, shown network connection is the example of communication equipment, and can use other means setting up communication linkage between the computers.

In a kind of example implementations, specific implementation respirator control software design and other modules and service can be come by being stored in the instruction performed in this type of storage system and by processor 1502.Some of them as described herein or all operations can be implemented by processor 1502.In addition, local computer system, teledata source and/or service and other logical representation be associated are configured to firmware, hardware and/or the software that control respirator operates.Such service can utilize all-purpose computer and special-purpose software (such as performing the server of service software), special-purpose computing system and special-purpose software (such as performing mobile device or the network appliance of service software) or other to calculate configuration and implement.In addition, the one or more function of system and method disclosed herein can be generated by processor 1502, and user can utilize one or more user interface facilities (such as keyboard 1516, display unit 1518 and subscriber equipment 112) and graphical user interface (GUI) to carry out alternately, the data during some of them use are directly from online source and data repository.The system set forth in figure 27 is only the possible example of of the computer system that can adopt the various aspects of present disclosure or configure according to the various aspects of present disclosure.

In this disclosure, disclosed method can be implemented to the instruction set or software that can be read by equipment.Further, it is to be appreciated that, the concrete order of each step in disclosed method and hierarchy are the examples of illustrative methods.Based on design preference, should be understood that, concrete order or the hierarchy of each step in described method can be rearranged, within the scope simultaneously still remaining on disclosed subject content.Appended claim to a method gives the element of each step according to sample order, and not necessarily should be limited to given concrete order or hierarchy.Some of them or institute can be performed in steps concurrently, or can be omitted or repeat.

Described disclosure may be provided in computer program or software, it can comprise the non-transient machine readable media wherein storing instruction, and described instruction can be used to programme to implement the process according to present disclosure to computer system (or other electronic equipments).Machine readable media comprises any mechanism for storing information according to the form that can be read by machine (such as computer) (such as software, process application).Machine readable media can include, without being limited to: magnetic-based storage media; Optical storage medium; Magnetic-light storage medium; Read-only storage (ROM); Random access memory (RAM); Erasable programmable memory (such as EPROM and EEPROM); Flash memory; Or be suitable for the medium of the other types of store electrons instruction.

Description above comprises the example system of the technology of specific implementation present disclosure, method, technology, command sequence and/or computer program.But should be understood that, described disclosure can be put into practice when there is no these details.

Believe and will be understood that present disclosure and many adjoint advantages thereof by description above, and will be appreciated that, when not deviating from disclosed subject content and do not sacrifice its substantial advantage all, many changes can be made in the form of assembly, structure and arrangement.Described form is only indicative, and appended claims intention contains and comprises such change.

Although describe present disclosure with reference to each embodiment above, should be understood that, these embodiments are illustrative, and the scope of present disclosure is not limited thereto.Many modification, amendment, interpolation and improvement are all possible.More generally, in the situation of specific implementation, describe the embodiment according to present disclosure before.Can be decomposed or combination function by different modes in each embodiment of present disclosure, or different terms can be utilized describe.These and other modification, amendment, interpolation and improvement can drop in the scope as the present disclosure of appended claims restriction.

Claims (15)

1., for the air through purification being provided to the respirator in enclosure space, it is characterized in that, described respirator comprises:

There is the outer cover of inner space;

The tube-axial fan that multiple serial is stacked, it is configured to by air intake in the inner space of outer cover, and generates the hydrostatic pressure of at least 3 inches of water and be in the malleation air-flow of the air mass flow between 50 Standard Liters per Minute to 300 Standard Liters per Minute;

Comprise at least one for removing the main filter module of the main filter of ultra-fine grain in the inner space being arranged in outer cover, described multiple fan guides positive pressure gas to flow through at least one main filter described to provide the air through purification; And

Through the air outlet of outer cover, described air outlet flows down reception at positive pressure gas and carrys out the air through purification of autonomous filter module and the air through purifying is directed to described enclosure space.

2. respirator according to claim 1, is characterized in that, described multiple fan is disposed in fan housing, and described fan housing has the air inlet being in described multiple fan upstream and the gas outlet being in described multiple fan downstream.

3. respirator according to claim 2, is characterized in that, arranges diffuser near the gas outlet in described fan housing, disseminates malleation air-flow on the surface of at least one main filter described.

4. respirator according to claim 1, is characterized in that, described multiple fan provides malleation air-flow in the surface of at least one main filter described under low face velocity.

5. respirator according to claim 4, is characterized in that, is less than 5 centimeters per seconds during described low face velocity.

6. respirator according to claim 1, is characterized in that, also comprises:

For measuring one or more pressure sensors of the pressure along described malleation air-flow.

7. respirator according to claim 1, is characterized in that, described multiple fan operates under one or more speed.

8. respirator according to claim 7, is characterized in that, described one or more speed comprises low speed, middling speed and high speed.

9. respirator according to claim 8, is characterized in that, described low speed is 100 Standard Liters per Minute, and described middling speed is 130 Standard Liters per Minute, and described high speed is 180 Standard Liters per Minute.

10. respirator according to claim 1, is characterized in that, described multiple fan comprises upstream fan and downstream fan.

11. respirators according to claim 10, is characterized in that, upstream fan rotates up in the side contrary with downstream fan.

12. respirators according to claim 10, is characterized in that, the upstream helical angle of upstream fan is higher than the downstream helical angle of downstream fan.

13. respirators according to claim 12, is characterized in that, upstream helical angle 8 to 10 degree higher than downstream helical angle.

14. respirators according to claim 1, is characterized in that, described multiple fan comprises the two-stage axial wheel of reverse rotation.

15. respirators according to claim 1, is characterized in that, described multiple fan is disposed between fore filter and at least one main filter module.