CN108371361A - A kind of mask and its method of ventilation - Google Patents
A kind of mask and its method of ventilation Download PDFInfo
- Publication number
- CN108371361A CN108371361A CN201810015593.7A CN201810015593A CN108371361A CN 108371361 A CN108371361 A CN 108371361A CN 201810015593 A CN201810015593 A CN 201810015593A CN 108371361 A CN108371361 A CN 108371361A
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- China
- Prior art keywords
- air
- cavity
- air exhaust
- blowing unit
- mask
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Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/28—Means for ventilation
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/14—Air permeable, i.e. capable of being penetrated by gases
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A kind of mask is disclosed, including：Ontology forms the first closed cavity, including air-supply passage and air exhaust passage with the face of mask user；Blowing unit is located on the air-supply passage of ontology, for extraneous gas to be delivered to the first cavity；Air exhaust units are located on the air exhaust passage of ontology, for being outwardly vented body from the first cavity；Processor unit, installation on the body, are electrically connected with blowing unit and air exhaust units, and the air pressure in air-flow, air exhaust units air-flow and the first cavity of the processor unit by analyzing blowing unit controls the working condition of blowing unit and air exhaust units.Air pressure in air-flow, the air exhaust units air-flow and the first cavity of the processor unit by analyzing the blowing unit realizes the rapid switching of air-supply and air draft to control the working condition of blowing unit and air exhaust units, reduces respiratory resistance.
Description
Technical field
The present invention relates to mask technical field, relate more specifically to a kind of mask and its method of ventilation.
Background technology
The mask of the prior art, it orally covers gas outside mask by the negative pressure formed in mask when user's air-breathing
In filter layer mask for inhalation, the normal pressure formed in mask when being exhaled by user arranges gas in mask through mask filter layer
Go out mask.The negative pressure in mask that user is formed in air-breathing can prevent in the lung of the gas stream access customer in mask, be formed
Inspiratory resistance；The normal pressure in mask formed when user exhales can prevent the gas in user's lung from breathing out, and form resistance of exhaling
Power.Inspiratory resistance and expiratory resistance are collectively referred to as respiratory resistance, and respiratory resistance can allow user to feel expiratory dyspnea.
Another mask of the prior art uses outlet valve, the problem of can improving expiratory resistance.User wears this mouth
Cover, in air-breathing, outlet valve is closed；When exhaling, the positive pressure formed in mask is in outlet valve, when normal pressure is more than one
After definite value, outlet valve can be opened, and be conducive to gas in mask and be discharged so that normal pressure will not continue to increase very much.But it is this
The inspiratory resistance problem of mask is not improved well, and so that outlet valve is opened when expiration, it is still desirable to certain
Normal pressure, that is, expiratory resistance is still had, so, which is not fully solved respiratory resistance problem.
A kind of scheme in the prior art needs to switch positive and negative rotation, is not easy reality using a fan for air-supply and air draft
The now rapid switching of air-supply and air draft.
Invention content
The purpose of the present invention is to provide a kind of mask and its method of ventilation, processor unit is single by analyzing the air-supply
Air pressure in the air-flow of member, the air exhaust units air-flow and the first cavity, to control blowing unit and air exhaust units
Working condition realizes the rapid switching of air-supply and air draft, reduces respiratory resistance.
According to a kind of mask provided by the invention, which is characterized in that including：Ontology, the facial shape with the mask user
At the first closed cavity, including air-supply passage and air exhaust passage；Blowing unit is located at the air-supply passage of the ontology
On, for extraneous gas to be delivered to first cavity；Air exhaust units are located on the air exhaust passage of the ontology,
For being outwardly vented body from the first cavity；Processor unit, installation on the body, with the blowing unit and described
Air exhaust units are electrically connected, the processor unit by analyze the air-flow of the blowing unit, the air exhaust units air-flow and
Air pressure in first cavity, controls the working condition of the blowing unit and air exhaust units.
Preferably, further include：First filter layer is located at the outer body, the second closed chamber is formed with the ontology
First cavity is connected to by body, the blowing unit with second cavity.
Preferably, first filter layer includes through-hole, corresponding with the air exhaust passage, and the air exhaust units pass through described
First cavity is in communication with the outside by through-hole and the air exhaust passage.
Preferably, the blowing unit includes the first fan, and the air exhaust units include the second fan, first fan
And/or second fan is tube-axial fan.
Preferably, further include：Holder is used to support first filter layer；Sleeve is located at the air exhaust passage and institute
State through-hole.
Preferably, the blowing unit includes the first fan, and the air exhaust units include the second fan, first fan
And/or second fan is centrifugal fan, further includes：Wing passage, positioned at the ontology be close to the users face side,
Second fan is in communication with the outside.
Preferably, the blowing unit includes：Second filter layer is located at one end of the blowing unit；The air draft list
Member includes：Outlet valve is located at one end of the air exhaust units so that extraneous gas cannot enter institute by the air exhaust units
State the first cavity.
Preferably, further include：Baroceptor is electrically connected with the processor unit, for sensing first cavity
Interior air pressure.
A kind of mask method of ventilation according to any of the above-described, which is characterized in that including：Institute is sensed using baroceptor
State the air pressure in the first cavity；Processor unit by analyze the air-flow of the blowing unit, the air exhaust units air-flow and
Air pressure in first cavity controls the operating of the blowing unit and air exhaust units.
Preferably, the operating of the blowing unit and air exhaust units includes：In inspiratory cycle, blowing unit and row
Wind unit operates so that air pressure is towards the direction of supercharging in the first cavity；In exhalation cycle, blowing unit and air exhaust units
Operating is so that air pressure is towards the direction of decompression in the first cavity.
Mask according to the present invention, air-flow, the air exhaust units gas that processor unit passes through the analysis blowing unit
Air pressure in stream and the first cavity, controls the working condition of the blowing unit and air exhaust units.Specifically, in air-breathing week
In phase, blowing unit and air exhaust units operate so that air pressure is towards the direction of supercharging in the first cavity；In exhalation cycle, send
Wind unit and air exhaust units, which operate, so that air pressure is towards the direction of decompression in the first cavity, the blowing unit using separation and row
The rapid switching of air-supply and air draft may be implemented in wind unit, can also conveniently realize blowing unit and air exhaust units alternating work
Make, the constant air-supply of blowing unit and air exhaust units fluctuation air draft, the constant air draft of air exhaust units and blowing unit fluctuate air-supply etc. no
Same operating mode.
The first filter layer on the outside of mask body and ontology form closed second cavity, and blowing unit is by the first cavity
It is connected to the second cavity.When user's air-breathing, due to the effect of blowing unit so that the air pressure subatmospheric of the first cavity,
Draught head is formed inside and outside the first filter layer so that ambient atmos are inhaled into the second cavity of mask after the filtering of the first filtering layer,
Gas supplemented with the second cavity delivers the gas to so that blowing unit is easier in the first cavity.
First fan of blowing unit and the second fan of air exhaust units may be centrifugal fan.Due to centrifugal
Fan it is small, and air-flow inflow direction is roughly parallel to rotary shaft, and outflow direction is vertical with rotary shaft, can be by second
Fan is set to ontology and is close to the users the side of face, can not only reduce the thickness of mask, but also can not have in the first mistake
Filtering layer trepanning, so that the simplified manufacturing process of filter layer, reduces cost.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from.
Fig. 1 a show the side view of the mask of the first embodiment of the present invention；
The blowing unit of the mask of the first embodiment of the present invention and the gas of air exhaust units is shown respectively in Fig. 1 b and Fig. 1 c
Flow path；
Fig. 2 a and Fig. 2 b show the stereogram and side view of the mask of the second embodiment of the present invention；
The blowing unit of the mask of the second embodiment of the present invention and the gas of air exhaust units is shown respectively in Fig. 2 c and Fig. 2 d
Flow path；
Fig. 3 a and Fig. 3 b show the stereogram and stereogram exploded view of the mask of the third embodiment of the present invention；
Fig. 3 c show the sectional view of the mask of the fourth embodiment of the present invention；
The blowing unit of the mask of the third embodiment of the present invention and the gas of air exhaust units is shown respectively in Fig. 3 d and Fig. 3 e
Flow path；
Fig. 4 a and Fig. 4 b show the stereogram and stereogram exploded view of the mask of the fourth embodiment of the present invention；
Fig. 4 c show the sectional view of the mask of the fourth embodiment of the present invention；
The blowing unit of the mask of the fourth embodiment of the present invention and the gas of air exhaust units is shown respectively in Fig. 4 d and Fig. 4 e
Flow path；
Fig. 5 a to Fig. 5 e are that processor unit is analyzed in the air-flow, air exhaust units air-flow and the first cavity of blowing unit
The schematic diagram of air pressure.
Specific implementation mode
Hereinafter reference will be made to the drawings is more fully described the present invention.In various figures, identical element is using similar attached
Icon is remembered to indicate.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.In addition, may not show in figure
Go out certain well known parts.
Many specific details of the present invention, such as the structure of component, material, size, processing work is described hereinafter
Skill and technology, to be more clearly understood that the present invention.But it just as the skilled person will understand, can not press
The present invention is realized according to these specific details.
It should be appreciated that when describing the structure of component, it is known as positioned at another floor, another area when by a floor, a region
When domain " above " or " top ", can refer to above another layer, another region, or its with another layer, it is another
Also include other layers or region between a region.Also, if by part turnover, this layer, a region will be located at it is another
Layer, another region " following " or " lower section ".
Fig. 1 a show the side view of the mask of the first embodiment of the present invention.
Fig. 1 is please referred to, the mask 100 of the first embodiment of the present invention includes ontology 110, blowing unit 120, air exhaust units
130, processor unit (not shown), baroceptor 150, battery unit (not shown) and circuit board are (in figure
It is not shown).Wherein, ontology 110 can form the first closed cavity 113 with the face 900 of 100 user of mask.Ontology 110 wraps
Air-supply passage and air exhaust passage are included, installation blowing unit 120 and air exhaust units 130 are respectively used to so that installation air-supply is single
Member 120 and air exhaust units 130 are located on ontology 110.Blowing unit 120 includes the second filter layer 123, and it is single to be located at air-supply
One end of member 120, further, the second filter layer 123 is located at blowing unit 120 close to one end of the first cavity 113, and send
The external world is connected to by wind unit 120 with the first cavity 113, and the gas of the first cavity 113 is entered for being filtered through blowing unit 120
Body.Air exhaust units 130 are used to the gas of the first cavity 113 being transported to the external world；Air exhaust units 130 include outlet valve 133, are located at
One end of air exhaust units 130, further, outlet valve 133 are located at the one end of air exhaust units 130 far from the first cavity 113, will be outer
Boundary is isolated with the first cavity 113, prevents when air exhaust units 130 are stopped, and extraneous gas enters the first cavity 113.Electricity
Pool unit is located on ontology 110, is connect with processor unit, for processor unit, air pressure processor, blowing unit 120
And air exhaust units 130 provide voltage.Circuit board is located on ontology 110, is connect with processor unit.
The axis of air-supply passage and air exhaust passage can be at an acute angle, such as at 45 degree.Air-supply passage and air exhaust passage are at this
It can be distributed up and down on body 110 or air-supply passage and air exhaust passage can control distribution on ontology 110.Further, originally
Air-supply passage distribution up and down on 100 ontology 110 of mask with air exhaust passage in embodiment, conveys the gas into the first cavity 113
The flow direction of the gas of the first cavity 113 of body and output is also at an acute angle, can increase user and wear the comfortable of the breathing of mask 100
Sense.
Processor unit is located inside ontology 110, is electrically connected with blowing unit 120 and air exhaust units 130.Air pressure sensing
Device 150 is located in the first cavity 113, is electrically connected with processor unit.The gas that processor unit passes through analysis blowing unit 120
Air pressure in stream, 130 air-flow of air exhaust units and the first cavity 113 controls blowing unit 120 and the air exhaust units 130.
Specifically, in user's inspiratory cycle, the operating of blowing unit 120 and air exhaust units 130 makes air pressure in the first cavity 113
Towards the direction of supercharging；In user's exhalation cycle, blowing unit 120 and air exhaust units 130 operate and make the first cavity 113
Interior air pressure is towards the direction of decompression.Wherein, blowing unit 120 and air exhaust units 130 can work at the same time, and can also blow list
Member 120 or air exhaust units 130 work independently.
The mask 100 of first embodiment of the invention, processor unit can more intelligently adjust blowing unit 120 and
The working condition of the air exhaust units 130 reduces respiratory resistance so as to preferably adapt to the practical breathing of user.Not only
The rapid switching that blowing unit 120 works with air exhaust units 130 may be implemented, and the independent baroceptor 150 being arranged can
To save the manufacturing cost of mask 100.
The blowing unit of the mask of the first embodiment of the present invention and the gas of air exhaust units is shown respectively in Fig. 1 b and Fig. 1 c
Flow path.The operation principle of the mask 100 of first embodiment of the invention is as follows：
As described in Fig. 1 b, when blowing unit 120 is opened, second filter filtering of the air-flow through blowing unit 120 is sent into
In first cavity 113 of mask 100, as shown in dotted line a1, the gas of feeding can increase by the first cavity for the flow direction of air-flow
Air pressure in 113, to reduce resistance of the user in air-breathing.
As described in Fig. 1 c, when air exhaust units 130 are opened, the gas that air exhaust units 130 are discharged when user exhales passes through
Outlet valve 133 is discharged to the external world, and the flow direction of air-flow is as shown in dotted line b1.The gas of the first cavity 113, which is discharged, can reduce
Air pressure in one cavity 113, to reduce resistance of the user when exhaling.
Fig. 2 a and Fig. 2 b show the stereogram and side view of the mask of the second embodiment of the present invention.The present invention second is implemented
The mask 200 of example is similar with the mask 100 of first embodiment, clear in order to describe, and mainly difference part is described below.
Please refer to Fig. 2 a and Fig. 2 b, the mask 200 of the second embodiment of the present invention include ontology 210, blowing unit 220,
Air exhaust units 230, processor unit (not shown), baroceptor 250, battery unit (not shown) and circuit
Plate (not shown).The mask 200 of second embodiment and 100 main distinction of mask of first embodiment at least that：Mask
200 further include the first filter layer 260, and the first filter layer 260 is located at 210 outside of ontology, the second closed chamber is formed with ontology 210
Body 261.First filter layer 260 covers blowing unit 220 so that blowing unit 220 is by the first cavity 213 and the second cavity 261
Connection.Battery unit and circuit board are located at the lower section inside the second cavity 261.First filter layer 260 includes through-hole, with ontology
210 air exhaust passage corresponds to, and the first cavity 213 is in communication with the outside by air exhaust units 230 by through-hole and air exhaust passage.
Due to the effect of blowing unit 220 so that the air pressure subatmospheric of the first cavity 213, in the first filter layer 260
Inside and outside formation draught head is mended so that ambient atmos are inhaled into 200 second cavity 261 of mask after the filtering of the first filtering layer
The gas of the second cavity 261 is filled, the filter layer of large area reduces the transporting resistance of blowing unit 220.
The blowing unit of the mask of the second embodiment of the present invention and the gas of air exhaust units is shown respectively in Fig. 2 c and Fig. 2 d
Flow path.The operation principle of the mask 200 of second embodiment of the invention is as follows：
As shown in Figure 2 c, when blowing unit 220 is started to work, it will produce from the second cavity 261 and flow into the first cavity 213
Air-flow, the flow direction of air-flow as shown in dotted line a2, air-flow flow into the first cavity 213 in, make the air pressure in the first cavity 213
Increase.
As shown in Figure 2 d, when air exhaust units 230 are started to work, the air-flow for leading to outlet valve 233, the stream of air-flow be will produce
Dynamic direction is discharged to the external world as shown in dotted line b2, by the gas that user breathes out by outlet valve 233.The gas of the first cavity 213 is discharged
Body can reduce the air pressure in the first cavity 213, to reduce resistance of the user when exhaling.
Fig. 3 a and Fig. 3 b show that the stereogram and stereogram exploded view of the mask of the third embodiment of the present invention, Fig. 3 c show this
Sending for the mask of the third embodiment of the present invention is shown respectively in the sectional view of the mask of the 3rd embodiment of invention, Fig. 3 d and Fig. 3 e
Wind process and air draft process, wherein Fig. 3 c are in Fig. 3 a according to sectional view shown in A-A.The mask of third embodiment of the invention
300 is similar with the mask 200 of second embodiment, clear in order to describe, and mainly difference part is described below.
Fig. 3 is please referred to, the mask 300 of the third embodiment of the present invention includes ontology 310, blowing unit 320, air exhaust units
330, processor unit (not shown), baroceptor 350, battery unit 351 and circuit board 352.3rd embodiment
Mask 300 and second embodiment 200 main distinction of mask at least that：The mask 300 of the present embodiment further includes holder 370
And sleeve 380.Wherein, holder 370 is used to support the first filter layer 360, and the shape of holder 370 can be with the first filter layer
360 shape corresponds to, and is located inside the second cavity 361.Sleeve 380 is located at the air exhaust passage and the first filter layer of ontology 310
On 360 through-hole, it is used to support air exhaust units 330.Blowing unit 320 includes the first fan 321, and air exhaust units 330 include the
Two fans 331, the first fan 321 and/or second fan 331 are tube-axial fan.Battery unit 351 and circuit board
352 are located inside the second cavity 361.
Holder 370 in 3rd embodiment can ensure second that 300 ontology 310 of mask and the first filter layer 360 are formed
The shape invariance of cavity 361, space size is constant, is further ensured that in 360 inside and outside formation draught head of the first filter layer so that outer
Boundary's gas is inhaled into 300 second cavity 361 of mask after the filtering of the first filtering layer 360, supplements the gas of the second cavity 361.
Sleeve 380 positioned at 360 through-hole of air exhaust passage and the first filter layer of ontology 310 can be to avoid the second of air exhaust units 330
The gas of first cavity 313 is accidentally conveyed into the second cavity 361 by fan 331, ensures that air exhaust units 330 will be in the first cavity 313
The gas in portion is delivered to the external world by outlet valve 333, thereby may be ensured that the exhaust performance of the mask 300.
The first fan 321 positioned at blowing unit 320 and the second fan 331 positioned at air exhaust units 330 can enhance
The power for conveying air, to improve the performance of the embodiment mask 300, the flow direction of the air-flow of blowing unit 320 is such as empty
Shown in line a3, the flow direction of the air-flow of air exhaust units 330 is as shown in dotted line b3.
Fig. 4 a and Fig. 4 b show that the stereogram and stereogram exploded view of the mask of the fourth embodiment of the present invention, Fig. 4 c show this
The sectional view of the mask of the fourth embodiment of invention, wherein Fig. 4 c are in Fig. 4 a according to sectional view shown in A-A.The present invention the 4th
The mask 400 of embodiment is similar with the mask 300 of 3rd embodiment, clear in order to describe, and is mainly carried out below to difference part
Description.
Please refer to Fig. 4 a and Fig. 4 b, the mask 400 of the fourth embodiment of the present invention include ontology 410, blowing unit 420,
Air exhaust units 430, processor, baroceptor 450, holder 470, battery unit 451 and circuit board 452.Fourth embodiment
Mask 400 and 3rd embodiment 300 main distinction of mask at least that：The mask 400 of the present embodiment further includes wing passage
490, positioned at the side of the face 900 of being close to the users of 400 ontology 410 of mask, the second fan 431 is in communication with the outside, being used for will
The gas perpendicular to axis being discharged by the second fan 431 is delivered to the external world.The blowing unit 420 includes the first fan
421, the air exhaust units 430 include the second fan 431, and first fan 421 and/or second fan 431 are centrifugation
Formula fan.Since the air-flow inflow direction of centrifugal fan is roughly parallel to rotary shaft, outflow direction is vertical with rotary shaft, at this
One air-supply passage can be only set on body 410, and there is no air exhaust passages.First fan 421 is installed in air-supply passage, and first
Gas inside second cavity 461 can be delivered in the first cavity 413 by fan 421, and gas can be from the first fan
421 side enters the first cavity 413.Second fan 431 is installed on ontology close to the position of 413 side of the first cavity, passes through
Gas in first cavity 413 is delivered to the external world by the wing passage 490 positioned at 431 side of the second fan.The first of the present embodiment
Air exhaust units 430 and blowing unit 420 can be completely covered for filter layer 460.Outlet valve 433 can be located at wing passage 490
One end of outlet.
Since the air-flow inflow direction of centrifugal fan is roughly parallel to rotary shaft, outflow direction is vertical with rotary shaft, makes
Centrifugal fan it is small, and the second fan 431 can be set to ontology 410 be close to the users face side, no
The thickness of mask 400 can only be reduced, and can not have to be exhaust passage trepanning on the first filter layer 460, so that
The simplified manufacturing process of first filter layer 460, reduces cost.
The blowing unit of the mask of the fourth embodiment of the present invention and the gas of air exhaust units is shown respectively in Fig. 4 d and Fig. 4 e
Flow path.The operation principle of the mask 400 of fourth embodiment of the invention is as follows：
As shown in figure 4d, when blowing unit 420 works, it will produce the gas that the first cavity 413 is flowed into from the second cavity 461
Stream, as shown in dotted line a4, air-flow is flowed into from the side of the first fan 421 in the first cavity 413 for the flow direction of air-flow.
As shown in fig 4e, when air exhaust units 430 work, the air-flow for leading to wing passage 490 is generated, the gas that user is breathed out
Body is discharged to the external world by the outlet valve 433 positioned at wing passage 490.The gas of the first cavity 413, which is discharged, can reduce the first cavity
Air pressure in 413, to reduce resistance of the user when exhaling.
In addition, the first fan and the second fan in the third embodiment of the present invention and fourth embodiment can be arranged to
Different types of fan, i.e. one of the first fan and the second fan fan are tube-axial fan, another is centrifugal
Fan.
Fig. 5 a to Fig. 5 e are that processor unit is analyzed in the air-flow, air exhaust units air-flow and the first cavity of blowing unit
The schematic diagram of air pressure.
Fig. 5 is please referred to, the air-flow of blowing unit, the air-flow of air exhaust units are analyzed according to the processor unit of mask of the present invention
And the principle of the first air pressure in cavity is as follows：
As shown in Figure 5 a, when not opening blowing unit with air exhaust units, the air pressure signal in the first cavity fluctuates upwards
Caused by the normal pressure that 501, which be people, generates when exhaling in mask, air pressure signal fluctuate downwards 502 be people in air-breathing in mask
Caused by the negative pressure of middle generation.(or the DC component for the number of winning the confidence) is averaged to the air pressure signal of fluctuation, threshold can be obtained
Value, as shown in dotted line 503 in Fig. 5 a, this threshold value is used for the respiratory state of approximate estimation people：Air pressure signal is on dotted line 503
Period in can approximate judgement people exhaling, air pressure signal can approximate judgement people within the period under straight line 503
In air-breathing.
As shown in Figure 5 b, after opening blowing unit or air exhaust units, reaction, ideal feelings can be generated to the fluctuation of air pressure
It is even possible that air pressure fluctuation is zero under condition.When blowing unit and air exhaust units are not opened in the expression of dotted line 601 produced by people's breathing
Air pressure fluctuation, solid line 602 indicates to open the fluctuation of air pressure after blowing unit and air exhaust units, it can be seen that air pressure fluctuation is pressed down
System.Correctly to perceive the breathing beat of people, blowing unit and the air flow rate of air exhaust units can be used to compensate air pressure signal.
Air flow rate can be with the rotation speed of the fan of blowing unit come approximate, as Fig. 5 c indicate blowing unit rotating speed at any time
Variation；As Fig. 5 d indicate that air exhaust units rotating speed changes with time.It is that processor unit calculates in the present invention to compensate air pressure signal
The air pressure in the first cavity gone out.
Wherein, a kind of method of compensation is to use following compensation formula：The gas before air pressure signal=compensation after compensation
Press signal-blowing unit rotating speed * coefficient 1+ air exhaust units rotating speed * coefficients 2.Wherein, coefficient 1 and coefficient 2 can pass through experiment
The constant of measurement.
Air pressure signal after compensation again can be as Fig. 5 a for judging breathing beat, as depicted in fig. 5e.It is empty in Fig. 5 e
Line 701 indicates that the air pressure fluctuation curve before compensation, straight line 702 indicate the air pressure fluctuation curve after compensation.
Therefore, the mask of the embodiment of the present invention can more intelligently adjust the work of blowing unit and the air exhaust units
Make state, so as to preferably adapt to the practical breathing of user, reduces respiratory resistance.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
As described above according to the embodiment of the present invention, there is no all details of detailed descriptionthe for these embodiments, also not
Limit the specific embodiment that the invention is only described.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is in order to preferably explain the principle of the present invention and practical application, belonging to making
Technical field technical staff can utilize modification of the invention and on the basis of the present invention to use well.The present invention is only by right
The limitation of claim and its full scope and equivalent.
Claims (10)
1. a kind of mask, which is characterized in that including：
Ontology forms the first closed cavity, including air-supply passage and air exhaust passage with the face of the mask user；
Blowing unit is located on the air-supply passage of the ontology, for extraneous gas to be delivered to first cavity；
Air exhaust units are located on the air exhaust passage of the ontology, for being outwardly vented body from first cavity；
Processor unit, installation on the body, are electrically connected, the processing with the blowing unit and the air exhaust units
Air pressure in air-flow, the air exhaust units air-flow and first cavity of the device unit by analyzing the blowing unit, control
Make the working condition of the blowing unit and air exhaust units.
2. mask according to claim 1, which is characterized in that further include：
First filter layer is located at the outer body, and the second closed cavity is formed with the ontology, and the blowing unit is by institute
The first cavity is stated to be connected to second cavity.
3. mask according to claim 2, which is characterized in that first filter layer includes through-hole, logical with the air draft
Road corresponds to, and first cavity is in communication with the outside by the air exhaust units by the through-hole and the air exhaust passage.
4. mask according to claim 3, which is characterized in that the blowing unit includes the first fan, the air draft list
Member includes the second fan, and first fan and/or second fan are tube-axial fan.
5. mask according to claim 4, which is characterized in that further include：
Holder is used to support first filter layer；
Sleeve is located at the air exhaust passage and the through-hole.
6. mask according to claim 2, which is characterized in that the blowing unit includes the first fan, the air draft list
Member includes the second fan, and first fan and/or second fan are centrifugal fan, and the mask further includes：
Second fan is in communication with the outside by wing passage positioned at the side of the face of being close to the users of the ontology.
7. mask according to claim 1, which is characterized in that the blowing unit includes：
Second filter layer is located at one end of the blowing unit；
The air exhaust units include：
Outlet valve is located at one end of the air exhaust units so that described in extraneous gas cannot be entered by the air exhaust units
First cavity.
8. mask according to claim 1, which is characterized in that further include：
Baroceptor is electrically connected with the processor unit, for sensing the air pressure in first cavity.
9. a kind of method of ventilation is executed by the mask described in one of claim 1-8, which is characterized in that including：
The air pressure in first cavity is sensed using baroceptor；
In air-flow, the air exhaust units air-flow and first cavity of the processor unit by analyzing the blowing unit
Air pressure controls the operating of the blowing unit and air exhaust units.
10. method of ventilation according to claim 9, which is characterized in that the operating of the blowing unit and air exhaust units
Including：
In inspiratory cycle, the operatings of blowing unit and air exhaust units is so that air pressure is towards the direction of supercharging in the first cavity；
In exhalation cycle, the operatings of blowing unit and air exhaust units is so that air pressure is towards the direction of decompression in the first cavity.
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| JP7461049B2 (en) | 2020-10-23 | 2024-04-03 | 株式会社サンエス | mask |
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Application publication date: 20180807 |