CN102458550A - Oxygen concentrator and start-up control method for same - Google Patents

Oxygen concentrator and start-up control method for same Download PDF

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Publication number
CN102458550A
CN102458550A CN2010800274976A CN201080027497A CN102458550A CN 102458550 A CN102458550 A CN 102458550A CN 2010800274976 A CN2010800274976 A CN 2010800274976A CN 201080027497 A CN201080027497 A CN 201080027497A CN 102458550 A CN102458550 A CN 102458550A
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China
Prior art keywords
rotating speed
oxygen
compressed air
starting
fan
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CN2010800274976A
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Chinese (zh)
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CN102458550B (en
Inventor
渡边博文
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Terumo Corp
Ikiken Co Ltd
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Priority claimed from JP2009145482A external-priority patent/JP2011000537A/en
Priority claimed from JP2009145483A external-priority patent/JP5404203B2/en
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Publication of CN102458550A publication Critical patent/CN102458550A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A61M16/0672—Nasal cannula assemblies for oxygen therapy
    • A61M16/0677—Gas-saving devices therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M16/101—Preparation of respiratory gases or vapours with O2 features or with parameter measurement using an oxygen concentrator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0229—Purification or separation processes
    • C01B13/0248—Physical processing only
    • C01B13/0259—Physical processing only by adsorption on solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/102—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4533—Gas separation or purification devices adapted for specific applications for medical purposes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0043—Impurity removed
    • C01B2210/0046—Nitrogen

Abstract

Disclosed is an oxygen concentrator which can supply stable feed air to an absorption unit immediately after start-up, even when started-up at low rotation. The oxygen concentrator is provided with a compressed air generator, which has an inbuilt rotation body and generates compressed air, and a suction unit, which introduces the aforementioned compressed air to an inner section and, by means of an adsorbent filled into said inner section, absorbs nitrogen and separates and produces oxygen. The aforementioned compressed air generator has a control unit (200) which controls the rotational frequency of the aforementioned rotation body such that the rotational frequency is appropriate with regard to the amount of oxygen being generated. When the device starts up, said control unit drives the rotational frequency of the aforementioned rotation body at a higher rotational frequency than that previously determined.

Description

Oxygen concentrating device and method for starting-controlling thereof
Technical field
The present invention relates to from air, separate the improvement of the oxygen concentrating device that generates oxygen.
Background technology
Inhale the employed oxygen concentrator of high concentration oxygen and propose to have various schemes for being used for the patient of pulmonary; Disclose following more small-sized oxygen concentrating device in the patent documentation 1; This oxygen concentrating device utilizes air compressor to use an atmospheric part to make compressed air; This air compressed is sent into the barrel of adsorbing usefulness, generate oxygen through making the intravital adsorbents adsorb nitrogen of this absorbing cylinder, the oxygen that generates is thus taken in by the patient through the nose conduit.
Patent documentation 1: TOHKEMY 2008-137853 communique
Summary of the invention
In the past, in above-mentioned such oxygen concentrating device,, realized small-sized and high efficiency device, but then, had the shortcoming that produces bigger vibration through the air compressor that use has compression and this two function that reduces pressure.
Patent documentation 1 is based on the application's proposition and accomplishes, the vibration when this device has realized suppressing expeditiously above-mentioned hypoxia flow.
But, when the starting oxygen concentrating device, as other problems, the problem below also existing.
That is, in Figure 13, Figure 14, each product of respectively corresponding 16 oxygen concentrating devices of listed each of the transverse axis of these figure numeral, the longitudinal axis are represented these each device startings, are generated oxygen and be stored in pressing time of surge tank required air compressor when reaching 90kPa.
In Figure 13, suppose common room temperature environment, for example, be given in 23 degree (below, temperature show all be " Celsius ") Celsius are taken care of lower setting flow (oxygen flow) the setting 1L (liter) of conduct after 24 hours under non-action status situation.
When setting flow for hanging down, the air supply of delivering to absorbing cylinder is also few, and therefore the air compressor rotating speed of this moment for example is 1000rpm.
As shown in the figure, 16 table apparatus all reached 90kPa with about about 12 seconds.
Figure 14 representes to suppose the experimental result of the low room temperature environment in place in winter etc.
Particularly, 0 degree keeping 24 hours, likewise set 1L (liter) with Figure 13 and turn round as lower setting flow (oxygen flow); The result; 16 table apparatus reach all needs the long period about 90kPa, need nearly 60 seconds when serious, and required time extends to general 5 times.
The reason that needs the time like this is described with reference to Figure 15, Figure 16.
Figure 15 is illustrated in to move in the cylinder in the air compressor and forms the piston cup (piston cup) than tazza shape form, when room temperature, and roughly contact seamlessly between the cylinder and piston, sealing is good.
But shown in figure 16, when ambient temperature became low temperature, the external diameter of piston cup shrank and produces the gap, owing to cause generating compressed-air actuated efficient reduction from the leakage in gap.
Test according to the inventor etc. can confirm, is 10 degree when following at the air compressor rotating speed less than 1300rpm, ambient temperature, and this tendency is obvious.
The present invention makes for solving above-mentioned problem, even its purpose is to provide a kind of oxygen concentrating device and its method for starting-controlling that when low rotary area starts, also can after starting just, just stable raw air be supplied to the adsorption section.
The present invention solves above-mentioned problem through following oxygen concentrating device; Said oxygen concentrating device comprises compressed air generation portion and adsorption section; Said compressed air generation portion be built-in with driven plunger rotary body, produce compressed air; Said adsorption section imports to above-mentioned compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in this inside; Above-mentioned compressed air generation portion has that to control the rotating speed that makes above-mentioned rotary body based on the above-mentioned oxygen flow that is generated be the control part of suitable rotating speed, and constituting of this control part drives above-mentioned rotary body with the rotating speed higher than the rotating speed of above-mentioned decision when the device starting.
According to above-mentioned formation, in when starting, even leak from the piston cup of the piston that is built in compressed air generation portion and the gap between the cylinder; The rotating ratio of the rotary body through making compressed air generation portion is high usually, thereby shortens the pressing time that correspondingly is used to obtain necessary pressure, along with the rising of temperature; Piston cup expands; Can reduce or stop to leak, therefore can carry a lot of raw airs, can obtain the oxygen of necessary amount reliably.
Oxygen concentrating device comprises the mechanism of switching the above-mentioned oxygen flow that generates, and when being set at little oxygen flow and turning round, based on the oxygen flow of this setting, drives with the rotating speed higher than the rotating speed of the above-mentioned rotary body that is predetermined.
According to above-mentioned formation, the operation mode as device is being set under the situation of little oxygen flow, because the rotating speed of the rotary body of compressed air generation portion is originally very little, needs pressing time, more effective in order to prevent aspect the leakage between piston cup and the cylinder.
Oxygen concentrating device has the mechanism of the ambient temperature that checkout gear places; If utilize this temperature testing organization to detect the temperature below the regulation, then can form such formation, promptly; Oxygen flow based on setting drives with the rotating speed higher than the rotating speed of the above-mentioned rotary body that is predetermined.
According to above-mentioned formation; When the ambient temperature of device placement is hanged down; Therefore leak easily between piston cup in being built in compressed air generation portion and the cylinder, make the rotating ratio of rotary body of compressed air generation portion high usually, shorten pressing time; Inhibition can be reduced or stop to leak by the piston cup expansion that temperature rises and causes.
In addition; Oxygen concentrating device has inhibition and improves the cooling fan that the temperature that causes rises by the rotating speed of above-mentioned compressed air generation portion; Have based on the above-mentioned oxygen flow that is generated and control to become the control part of suitable rotation speed of the fan, this control part can form such formation, promptly; When the device starting, stop this cooling fan, or with the rotating speed drive fan lower than the rotation speed of the fan of this decision.
According to above-mentioned formation, stop cooling fan, or based on above-mentioned oxygen flow, drive with the low rotating speed of rotation speed of the fan than decision, stop thus or reduce being used to suppress and the rise refrigerating function of corresponding temperature rising of pressure.Thus, correspondingly become high temperature, piston cup expands, and can reduce or stop to leak, and therefore can carry a lot of raw airs, can obtain the oxygen of necessary amount reliably.
The invention still further relates to a kind of method for starting-controlling of oxygen concentrating device; This oxygen concentrating device comprises compressed air generation portion and adsorption section; Said compressed air generation portion be built-in with driven plunger rotary body, produce compressed air; Said adsorption section imports to above-mentioned compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in this inside, and said method for starting-controlling is characterised in that, when starting; The oxygen flow of setting during based on starting, the running when starting with the rotating speed higher than the rotating speed of the above-mentioned rotary body that is predetermined.
Judgement selected oxygen when above-mentioned starting is set flow, when being set at little oxygen flow and turning round, and based on the oxygen flow of this setting, the running when starting with the rotating speed higher than the rotating speed of the above-mentioned rotary body that is predetermined.
Testing environment temperature when above-mentioned starting is if detect the temperature below the regulation, then based on the oxygen flow of setting, the running when starting with the rotating speed higher than the rotating speed of the above-mentioned rotary body that is predetermined.
In addition; The present invention solves above-mentioned problem through following oxygen concentrating device, and this oxygen concentrating device comprises compressed air generation portion and adsorption section, said compressed air generation portion be built-in with driven plunger rotary body, produce compressed air; Said adsorption section imports to above-mentioned compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in this inside; It is characterized in that this oxygen concentrating device has cooling fan and is used to suppress rise owing to utilizing above-mentioned compressed air generation portion to make pressure and rotating speed improve the temperature that causes, and have based on the above-mentioned oxygen flow that is generated and control so that become the control part of suitable rotation speed of the fan; Constituting of this control part; When the device starting, stop this cooling fan, or, drive with the low rotating speed of rotation speed of the fan than decision based on above-mentioned oxygen flow.
According to above-mentioned formation; When starting; Even from leaking at the piston cup of the built-in piston of compressed air generation portion and the gap between the cylinder, through stopping cooling fan, or based on above-mentioned oxygen flow; The low rotating speed of rotation speed of the fan with than decision drives, thereby stops or reducing being used to suppress the refrigerating function that temperature rises.Thus, correspondingly become high temperature, piston cup expands, and can reduce or stop to leak, and therefore can carry a lot of raw airs, can obtain the oxygen of necessary amount in the short time.
This oxygen concentrating device has the mechanism of switching the above-mentioned oxygen flow that generates, when being set at little oxygen flow and turning round, based on the oxygen flow of this setting, to drive than the low rotating speed of the above-mentioned speed of cooling fan that is predetermined.
According to above-mentioned formation; Operation mode as device is being set under the situation of little oxygen flow, because the rotating speed of the rotary body of compressed air generation portion is originally very little; Need pressing time; Correspondingly temperature rises slowly, so through reducing speed of cooling fan, can prevent the leakage between piston cup and the cylinder more reliably.
This oxygen concentrating device has the mechanism of the ambient temperature that checkout gear places; If utilize this temperature testing organization to detect the temperature below the regulation; Then stop cooling fan, or, drive with the low rotating speed of rotation speed of the fan than decision based on above-mentioned oxygen flow corresponding to the oxygen flow of setting.
According to above-mentioned formation, when the ambient temperature of device placement is hanged down, leak easily between piston cup in being built in compressed air generation portion and the cylinder; Therefore, if stop cooling fan corresponding to the oxygen flow that sets, or based on above-mentioned oxygen flow; The low rotating speed of rotation speed of the fan with than decision drives; Then corresponding temperature rises easily, therefore can suppress piston cup and expand, and can reduce or stop to leak.
Above-mentioned compressed air generation portion has to control based on the above-mentioned oxygen flow that is generated makes that the rotating speed of above-mentioned rotary body is the control part of suitable rotating speed, and this control part drives above-mentioned rotary body with the rotating speed higher than the rotating speed of above-mentioned decision when the device starting.
According to above-mentioned formation, can when starting, suppress compressed-air actuated pressure and rise, correspondingly, suppress piston cup and expand, can reduce or stop to leak, therefore can carry a lot of raw airs, can obtain the oxygen of necessary amount in the short time.
The invention still further relates to a kind of method for starting-controlling of oxygen concentrating device; This oxygen concentrating device comprises compressed air generation portion, adsorption section and cooling fan, said compressed air generation portion be built-in with driven plunger rotary body, produce compressed air, said adsorption section imports to above-mentioned compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in this inside; Said cooling fan is used to suppress rise owing to the pressure of above-mentioned compressed air generation portion and rotating speed improve the temperature that causes; The method is characterized in that, when starting, stop this cooling fan; Perhaps, drive with the low rotating speed of rotation speed of the fan than decision based on above-mentioned oxygen flow.
Judgement selected oxygen when above-mentioned starting is set flow, when being set at little oxygen flow and turning round, and based on the oxygen flow of this setting, the running when starting than the low rotating speed of the above-mentioned speed of cooling fan that is predetermined.
Testing environment temperature when above-mentioned starting if detect the temperature below the regulation, then stops cooling fan corresponding to the oxygen flow that sets, or based on above-mentioned oxygen flow, the running when starting with the low rotating speed of rotation speed of the fan than decision.
As stated, according to the present invention, even a kind of oxygen concentrating device and its method for starting-controlling that when low rotary area starts, also can after starting just, just stable raw air be supplied to the adsorption section is provided.
Description of drawings
Fig. 1 is the stereoscopic figure of the oxygen concentrating device of embodiment of the present invention.
Fig. 2 is the diagrammatic top view of guidance panel of the device of Fig. 1.
Fig. 3 is the in-built exploded perspective view of the device of presentation graphs 1.
Fig. 4 is the system diagram of the device of Fig. 1.
Fig. 5 is the formation block diagram as the 1st embodiment of the present invention.
Fig. 6 is the flow chart of an example of the running control of expression the 1st embodiment of the present invention.
Fig. 7 is the formation block diagram as the 2nd embodiment of the present invention.
Fig. 8 is the flow chart of an example of the running control of expression the 2nd embodiment of the present invention.
Fig. 9 is the routine curve chart of relation of temperature of action and compressor of cooling fan of the oxygen concentrating device of expression the 2nd embodiment of the present invention.
Figure 10 is the formation block diagram as the 3rd embodiment of the present invention.
Figure 11 is the key diagram of the running example of expression the 3rd embodiment of the present invention.
Figure 12 is the flow chart of an example of the running control of expression the 3rd embodiment of the present invention.
The figure of pressing time when Figure 13 is the starting of expression oxygen concentrating device.
The figure of pressing time when Figure 14 is the starting of expression oxygen concentrating device.
Figure 15 is that sketch is amplified in the part of the interior piston portion of the air compressor of oxygen concentrating device.
Figure 16 is that sketch is amplified in the part of the interior piston portion of the air compressor of oxygen concentrating device.
The specific embodiment
Below, with reference to the preferred implementation of these inventions of detailed description such as accompanying drawing.
Need to prove; Below the embodiment of explanation is a preferred concrete example of the present invention; Therefore technically added preferred various qualification, but as long as in following explanation not special record restriction content of the present invention, scope of the present invention is not limited to these embodiments.
Fig. 1 is the stereoscopic figure of the oxygen concentrating device of embodiment of the present invention, and Fig. 2 is the diagrammatic top view of its guidance panel.
In these figure, oxygen concentrating device 10 for example has the body shell 11 of lengthwise, is provided with the handle 12 that becomes handle in the upper end.
Internal structure except body shell 11 as after state shown in Figure 3.
Near the upper end of body shell 11, on the guidance panel 13 that slightly is provided with, dispose on and off switch 14, oxygen outlet 15, the oxygen flow configuration switch 16 of rotating disc type and the oxygen flow display part 18 that for example shows from left to right by usefulness field numerals such as LED or liquid crystal displays with leaning forward.Above oxygen outlet 15, have with airtight conditions and engage with the stage portion that forms in this oxygen outlet 15 and load and unload the coupling 21 of setting freely.Peristome with the pipe 23 of nose conduit 22 grades is provided with the mode that this coupling 21 is communicated with.
4 rubber supporting legs 27 are fixed on four jiaos of bottom 26 of body shell 11, laterally skid when preventing on being arranged at ground, to use.
In addition, can constitute with 2 hold-down screws the carrier 25 that uses when will be when going out etc. mobile is fixed on the bottom 26.On this carrier 25, be equipped with the 10b of hole portion that can accommodate above-mentioned each rubber supporting leg 27, and as diagram, dispose resinous movable castor at four jiaos at correspondence position.
Fig. 2 amplifies the above-mentioned guidance panel 13 of expression.On and off switch 14 is operated between the open position of illustrated closed position and about 90 degree that turn clockwise.Position suitable with the open position of this on and off switch 14 is provided with the operating condition lamp, this operating condition lamp be built-in with light up as green, red etc. for example emitting led etc.In addition, on this operating condition lamp, be provided with battery remaining amount display.
In addition; On the oxygen outlet 15 of guidance panel 13 central authorities, dispose the alarm display part; Laterally printed literal " inspection " on this alarm display part or be equivalent to this character demonstration etc., below this alarm display part, be provided with the oxygen lamp, be built-in with light up as green, red and xanchromatic for example emitting led.
Oxygen flow configuration switch 16 is made as and has printed flat switch 16a, the 16b of arrow up and down.This oxygen flow forms following formation with configuration switch 16: set oxygen flow when to maximum 5L the oxygen of simmer down to more than about 90% being carried out pressing operation with per minute 0.25L (liter) with 0.25L stage or 0.01L stage; And; Oxygen flow display part 18 up shows the flow set of this moment, thereby can change the oxygen generative capacity.In addition, synchronizing lamp 19 is set, is used for showing and informing to be in to the patient and supply with the running of concentrate oxygen to be interrupted supply condition through breathing synchronously through lighting or turning off the light.
Fig. 3 is the three-dimensional exploded view of observing from rear side for the internal structure of representing oxygen concentrating device 10.
Use a plurality of hold-down screws will resinous bottom 26 that Corner Strapped has a rubber supporting leg 27 from below be fixed in the bottom surface of resinous base body 40.
This base body 40 is configured as the case shape, and the wall integral forming that will form continuously towards the top from the four sides is as shown in the figure, on the wall of inner face, is fixed with each above-mentioned adapter 131,130.As shown in the figure, be equipped with air vent 40c, 40c, each air vent of this air vent 40c, 40c and the not shown interior cover that on housing body 11 illustrated in fig. 1, is provided with is relative, and be located at these housing body 11 inner power supply rooms and be communicated with.Carry out final outside aerofluxus via these air vents 40c.The upper surface of this base body 40 is as shown in the figure form smooth.In addition, on base body 40, from 3 integrally formed rising portions 40f of direction, wear porose portion on this rising portions 40f, this hole portion is used for from about the two laminar soundproof rooms 34 of formation as shown in the figure face and this tripartite side of inner face and fixes with hold-down screw.In addition, also be equipped with the aerofluxus that is communicated with above-mentioned power supply room and use peristome 40b.
Then; Two laminar soundproof rooms 34 are made up of the light metal plate of above-mentioned that kind; Make closed box 35; This closed box 35 is to set the air compressor 105 as compressed air generation portion at upper strata member 36 fixing 2 blowing fans 104 that can come in and go out from a side of the front side of accompanying drawing and with shockproof state, and this air compressor 105 is arranged on the lower floor's member 37 that can come in and go out from the same side.
This two laminars soundproof room 34 will be such at the sound insulation chamber cap 39 shown in the side of front and fixing at the sound insulation chamber cap shown in the inboard 38 as illustrating with a plurality of hold-down screws as illustrating that kind.Two laminar soundproof rooms 34 by as illustrate bending machining, and be provided with the installation portion of embedded nut integratedly.At this soundproof room laid inside deadener 51.Lay the vibrationproof member at outer peripheral face, promptly lay the raw material that will mix synthetic rubber and special resin material and form flaky material, prevent to vibrate because of sympathetic response etc. by the two laminar soundproof rooms 34 self of aluminium sheet manufacturing.
On the left and right sides wall above the upper strata member 36 of this two laminars soundproof room 34, be equipped with the 1st peristome 35a that shows like real diagram and, outside atmosphere imported to inside like illustrated the 1st peristome 35a of dotted line.In this upper strata member 36, be equipped with a plurality of fixing holes, this fixing hole is used for across the fixing illustrated pipe arrangement 24 of Fig. 4 of rubber bush, in supporting pipe arrangement 24, realizes anti-vibration functions with the rubber bush cooperation.
In addition, each blowing fan 104 can use the for example multi blade fan of convertor controls.Each blowing fan 104 uses carriage to be fixed on the upper strata member 36 for making its air outlet separately towards the below.Between this each blowing fan 104, dispose above-mentioned three-way switch valve 109a, 109b etc.And, be provided with fan rotation test section 126 at each blowing fan 104.Fan rotation test section can use the rotation of circuit breaker type optical sensor for example etc. to detect meter etc.
Side wall surface in the left side of this two laminars soundproof room 34, the absorption cylindrical shell 108a of tubular, 108b and air-breathing disposes with surge tank 101 side by side.The absorption cylindrical shell 108a of tubular, 108b, air-breathing with surge tank 101 by being with 49 to be fixed on the setting tool 49k, said setting tool 49k is fixed on the side wall surface.That is, make and be with 49 to pass setting tool k, with this with 49 be wound in tubular absorption cylindrical shell 108a, 108b, the air-breathing outside with surge tank 101 and fastening, fix thus as the diagram.At this moment, the absorption cylindrical shell was put on the upper surface of base body 40 in 108 years, but was fixed among the part insertion peristome 40d of total length than long surge tank.
Product jar 111 is by vacuum-formed polyvinyl resin system, as is configured in the top of two laminar soundproof rooms 24 illustrating along its length.For lightweight, above-mentioned shield 32 is also by resin manufacture.Shield 32 is provided with speaker 23 and aerial lug 133 as diagram, integrally formed installation portion, this installation portion are also used as outside wall surface fastening of the top of using hold-down screw to be fixed in two laminar soundproof rooms 34.In addition; Wall utilizes fixedly radiating component 52,53 of hold-down screw above two laminar soundproof rooms 34; And, improve radiating effect with fixing above-mentioned substrate 200 (stating the substrate of CP U 200 after comprising), 201 (substrates that comprise motor control part) respectively controlled of the state of erecting.Need to prove that this shield 32 part as stated reaches the outside, therefore use black pigment to be coloured to black.
Side wall surface on the right side of this two laminars soundproof room 34 is fixed with oxygen sensor 114, ratio aperture valve 115, pressure regulator 112, flow transducer 116, request valve 117, circuit substrate 202 and temperature sensor 125.
Fig. 4 is the system diagram (piping diagram) of oxygen concentrating device 10.
In the drawings, two-wire is the stream of air, oxygen, nitrogen, and the pipe arrangement 24a～24g that applies greatly representes.Fine line representes that power supply is supplied with or the wiring of the signal of telecommunication.
At this, in following explanation, to using situation to describe with compressing mechanism (compressed air generation portion) and the incorporate device of the mechanism of decompressor (negative pressure generation portion) as air compressor 105.But, be not limited to this formation, can certainly constitute compressed air generation portion and negative pressure generation portion respectively.In addition, for outside atmosphere being imported to inside and is discharged to outside surface cover and interior cover (part of housing body 11) via air vent, be illustrated by the broken lines in the drawings as hermetic container via air entry.
In Fig. 4, explain successively that along the stream that imports air air (outside atmosphere) passes along arrow F direction and is built in above-mentioned filter and changes with the importing of the outside atmosphere in the lid and be directed to oxygen concentrating device 100 inside with filter 20.This air is by the air-supply of a pair of blowing fan 104,104 and get in the two laminar soundproof rooms 34.As stated; In two laminar soundproof rooms 34, on the member of upper strata, be equipped with blowing fan 104,104; Set air compressor 105 at lower floor's member with the vibrationproof state; Through the peristome that on the side of this two laminars soundproof room 34 (dotted line diagram), wears, air admission is in this two laminars soundproof room 34.In order to supply to this part of air among the compressing mechanism 105a of air compressor 105 as raw air; The peristome of pipe arrangement 24a is provided with to two laminar soundproof rooms, 34 inner opening ground, carries out the air-breathing filter 101 and jumbo inhaling silencer 102 of secondary filter midway being provided with of pipe arrangement 24a.Through such formation, the inhaled sound of raw air is stayed in two laminar soundproof rooms 34, reduce inhaled sound thus.
On the other hand, for lightness, this two laminars soundproof room 34 is made up of reinforcement light-alloy, aluminium alloy, titanium alloy sheet or other the suitable material of the about 0.5mm～2.0mm of thickness.If constitute by thin plate as stated, then be difficult to guarantee the intensity of screw hole portion.Therefore, make screw hole portion, embedded nut is fixed on proper site.Inside at this two laminars soundproof room 34 is fixed with air compressor 105 with the vibrationproof state, and this air compressor 105 preferably will compress raw air compressed-air actuated compressing mechanism 105a and mechanism of decompressor 105b one formation take place.Closely dispose temperature sensor 125 (simultaneously with reference to Fig. 3) with this air compressor 105 at the roughly consistent position of the environment of temperature.
Then; Raw air after the filtration is become compressed air by the compressing mechanism 105a of air compressor 105 pressurization; Passed out to pipe arrangement 24c with the state that temperature rises this moment; Therefore can this pipe arrangement 24c be made the good light metal pipe of radiating effect, be used to cool off from the air-supply of blowing fan 104.Through such cooled compressed air, the adsorbent of function reduction at high temperature is that zeolite also can play one's part to the full as utilizing adsorption of nitrogen to generate the adsorbent of oxygen, therefore can oxygen be concentrated to more than about 90%.
Compressed air is adsorbed cylindrical shell 108b by alternative supply to the 1st absorption cylindrical shell 108a and the 2nd as the adsorption section via pipe arrangement 24c.Therefore, transfer valve (three-way switch valve) 109a, 109b connect as illustrating.For the not gas that makes these transfer valves 109a, 109b and the 1st absorption cylindrical shell 108a and the 2nd absorption cylindrical shell 108b breaks away from (in order to purge (purifications)), with pipe arrangement 24f that mechanism of decompressor 105b is communicated with on arranged in series have a plurality of (at least 2) negative pressure to destroy the 1st valve 120 and negative pressure is destroyed the 2nd valve (pressure-regulating valve) 121.Through these valves are opened, then as after state, making the pressure in the pipe arrangement 24f is near the atmospheric pressure when all pressing engineering, below the regulation flow, its pressure is suitably carried out pressure control, thereby seeks to suppress the vibration and the low currentization of air compressor.
As an example of the catalyst adsorbent that in the 1st absorption cylindrical shell 108a and the 2nd absorption cylindrical shell 108b, stores respectively, for example use zeolite.
On the other hand, the outlet side branch above the 1st absorption cylindrical shell 108a and the 2nd absorption cylindrical shell 108b is connected with the constant pressure valve 107 that is made up of check-valves, control valve and open and close valve.In addition, the downstream of constant pressure valve 107 forms the outlet interflow, top that pipe arrangement 24d makes the 1st absorption cylindrical shell 108a and the 2nd absorption cylindrical shell 108b.Thus, seen off with the oxygen that the 2nd absorption cylindrical shell 108b separates about the 90% above concentration that generate at the 1st absorption cylindrical shell 108a.This oxygen is sent to the container that is used to store oxygen as illustrating be product jar 111.In addition, being used to detect the pressure transducer 208 that respectively adsorbs cylinder internal pressure is provided with as diagram.
The pressure that is provided with in the downstream of product jar 111 oxygen of outlet side is adjusted into constant compression force adjustor 112 automatically.Be connected with oxygen (concentration) pick off 114 of zirconium oxide formula for example or ultrasonic type in the downstream of this pressure regulator 112, be interrupted (every) or carry out the detection of oxygen concentration continuously at a distance from 10～30 minutes.Be connected with the ratio aperture valve 115 that opens and closes linkedly with above-mentioned oxygen flow configuration switch 16 in this downstream, be connected with oxygen flow pick off 116 in its downstream.In addition, be connected with request valve 117 via the negative pressure circuit substrate that is used to breathe Synchronization Control, export 15 via sterilising filter 119 with the oxygen of oxygen concentrating device 10 and be connected in the downstream of this pick off 116.Through above formation, can the patient be sucked by the about oxygen more than about 90% of simmer down to maximum stream flow 5L/ minute via nose conduit 22 grades.
Then, the power-supply system of oxygen concentrating device 10 is following structures in Fig. 4.
The adapter 130 that comprises AC power supplies is connected with and is used for the AC adapter 19 of AC (commercial exchange) power rectifier for the switch adjuster formula of regulation DC voltage.The adapter 130 of this AC power supplies is connected with power control circuit 226.
In apparatus main body, has internal battery 228.In addition, have the external cell 227 that can freely be provided with through being arranged on the adapter 131 on the device, each battery is connected with power control circuit 226 with loading and unloading.
Internal battery 228 is rechargeable 2 primary cells with external cell 227, and internal battery 228 receives from the electric power of power control circuit 226 and supplies with and be recharged.Need to prove; At least internal battery 228 can carry out the repeated charge of at least 500 (several about 100 times) degree; Use has the battery remaining amount, uses the battery of managerial functions such as charge and discharge cycles number, degree of aging, output, and preferred use can be through affirmation battery remaining amount, remaining charging capacitys such as external moving terminals, discharge and recharge the battery with managerial function of number of times.
In addition, about external cell 227, under the connection status that connects via adapter 131, also can accept to supply with and charge, but use the battery charger of preparing in addition to charge repeatedly usually from the electric power of power control circuit 226.Perhaps, can prepare the integrated external cell that forms 227 of the battery charger of special designs.
In above power system structure; One of electric power supply condition that oxygen concentrating device is switched to following 3 systems automatically uses; That is, receive from the electric power of AC adapter 19 and supply with and the 1st electric power supply condition of work, receive from the electric power of internal battery 228 and supply with and the 2nd electric power supply condition of work, receive from the electric power of external cell and supplying with and the 3rd electric power supply condition of work.
In order to make the priority be used for this automatic switchover determine automatically, by central control part 200 control power control circuits 226 by the order of the 1st above-mentioned electric power supply condition, the 3rd electric power supply condition, the 2nd electric power supply condition.
In addition, about power control circuit 226 and internal battery 228, for the centre of gravityization of seeking oxygen concentrating device 100 as after be configured in the bottom surface stating.On the other hand, external cell 227 is built in the resettlement section of carrier 25 as above-mentioned, thereby can use when going out etc.Owing to be provided with above-mentioned charging residual volume display part etc., so can learn residue service time through sound guide at this external cell 227.
AC adapter 19 can not receive the influence of frequency difference and the change ground of voltage to produce the regulation DC voltage, and can be to constitute small-sized light-duty switching regulaor formula, also can be common transducer formula.In addition, the storage effect when internal battery 228 can be charging with external cell 227 is little, also can be full of electricity when recharging lithium ion, lithium hydrion 2 primary cells also can be Ni-MH batteries in the past.
In addition, also can make when urgent have, the box of all available list 2 aneroid battery constitutes external cell anywhere.
In addition; The central control part 200 of oxygen concentrating device 100 has the function of switching the optimal action pattern based on the oxygen amount that generates; Through controlling; Air compressor 105, blowing fan 104 are driven with high speed rotating, air compressor 105, blowing fan 104 are driven with low speed rotation, internal battery 228 is kept.Even this result is when forgetting external cell 227 chargings, in the time of also tackling unexpected going out, when having a power failure etc.
In addition, on central control part 200, be connected with: respectively to the rotary body of air compressor 105 be the motor of dc motor and blowing fan 104 carry out the motor control part 201 of drive controlling with through be connected the sound control part 203 of the content of sounding with above-mentioned speaker 23.
Be built-in with the ROM that has stored the compulsory exercise program at this central authorities' control part 200; And be connected with storage device 210, volatile memory 205, temporary storage device 206 and real-time clock 207; Be connected with telecommunication circuit etc. via aerial lug 133, thereby can visit memory contents.
In addition, above-mentioned three-way switch valve 109a, 109b and all constant pressure valve 107, be used to control the negative pressure that is used to make the pressure in the negative pressure generation 105b of portion that the not gas in the 1st absorption cylindrical shell 108a and the 2nd absorption cylindrical shell 108b breaks away from and the pipe arrangement 24f and destroy that the 1st valve 120, negative pressure destroy the 2nd valve 121, oxygen concentration sensor 114 is connected with central control part 200 with the valve and the flow-control portion 202 of ratio aperture valve 115, flow sensor 116 and request valve 117 drive controlling.
But the air compressor 105 of the about 1kg of gross weight carries out the drive controlling of motor for being built in the variable speed control of motor control part 201 with the sine wave drive waveform, thereby reduces the running sound.This air compressor 105 can turn round with each speed, can produce the stress level and the flow of vacuum necessary (negative pressure)/malleation, preferably only sends a spot noise and vibration, only sends some heats, and is small-sized light-duty and only just can turn round with micro-power consumption.
Because motor control part 201 has the variable speed control as the variable velocity controlling organization, can the speed of air compressor 105 freely changed thus.As a result, utilizing request valve 117 to require the driven in rotation speed of air compressor 105 is reduced automatically when low for patients' such as the patient sits down, recumbency oxygen through breathing synchronous judgment.In addition, be judged as the patient stand, movable, when being in the low highland of oxygen concentration etc., patient's oxygen is had relatively high expectations, when the oxygen required amount improves, can improve speed automatically.
Can reduce oxygen concentrating device 10 whole power consumptions through above Motor Control, life-span during driving that prolongs TunePower, and alleviate the weight and the size of TunePower, reduce wear intensity and the life-saving of air compressor 105, thereby improve reliability.
This air compressor 105 has the compressed air of generation and produces this two sides function of negative pressure as above-mentioned, control rotating speed automatically based on the oxygen flow that is taken out.Particularly, rotary speed is controlled between 500rpm～3000rpm, and the operation lifetime in the time of will with common speed being the 1700rpm left rotation and right rotation extends to 15000 hours.In addition, this air compressor 105 has air boil down to 100kPa, the performance about boil down to 75kPa preferably.Also has the function of when above-mentioned operation lifetime reaches, informing by sound guide.
At this, driving cooling fan is the fan motor of blowing fan 104, uses the DC brush-less fan, can carry out rotating speed control through PWM control or Control of Voltage easily.
Fig. 5 is the pie graph as the start-control device 70 of the oxygen concentrating device 10 of the 1st embodiment.
Scope shown in the chain-dotted line, that is, the scope shown in the symbol 200, the part of the structure of central control part 200 that can be through utilizing Fig. 4 realizes.
Promptly; Central authorities' control part 200 is by comprising that the control circuit (IC) that is used to control the control part that whole CPU (Central Processing Unit) constituted constitutes, and is connected with real-time clock, temperature sensor 125, storage device 210 as timing portion 207 at this central authorities' control part 200.Storage device 210 can have RAM (Random Access Memory), ROM (Read Only Memory) or flash memory etc. usually in central its part of control part 200 internal configurations, and these connect via bus with other devices.Above-mentioned CPU is except carrying out regulated procedure handles, also the ROM that is connected with bus of control etc.ROM comprises various programs, various information etc.RAM has the function as the zone, is used for contrasting memory content, expansion and the performing a programme of CPU routine processes.
In addition, be connected with air compressor 105 at central control part 200 via drive control part main body 201.
Central authorities' control part 200 has through connecting the flow set judging part 71 that oxygen flow configuration switch 16 is used to hold the setting flow that the user sets, through input can hold from the measured signal of temperature sensor 125 with air compressor 105 extremely near the temperature at position.Thus, central control part 200 has the ambient temperature judging part 72 of judgement as the ambient temperature of air compressor action environment.
In addition, this ambient temperature judging part 72 determines indication portions 73 to be connected with storage device 210 and central 200 contained rotating speed times of control part.The driving mechanism of the ambient temperature of air compressor 105 and this air compressor 105 is that the relation of the rotating speed of motor is kept at storage device 210 by the form with the list data that is predetermined etc.Rotating speed time decision indication portion is connected with for example motor drive circuit (motor control part 201) as drive control part main body 201, and this motor drive circuit is connected with air compressor 105.
The setting flow information that ambient temperature judging part 72 obtains from flow set judging part 71 when this setting flow is low discharge, with reference to the data of storage device 210, is observed the relation of this flow and ambient temperature.
In the data of storage device 210; Under this low discharge; The temperature that air compressor 105 is heated rises slowly; (be located at the piston tip portion of air compressor 105, for example the member at the tazza shape shown in Figure 15 etc. is the external diameter of piston cup, the undergauge owing to the relation of ambient temperature and temperature expansion coefficient owing to cause leaking at air compressor 105 with the relation of ambient temperature.Therefore, between piston cup and cylinder, produce the gap, produce escape of air), when writing down in advance, send instruction based on these data.
Promptly; 72 pairs of rotating speed time of ambient temperature judging part decision indication portion 73 sends instruction; Improve the motor speed of air compressor 105, the pressure that improves air improves temperature, and transmission can be returned the external diameter of the piston cup of undergauge the duration of runs of rotating speed He this rotating speed of original size.
Rotating speed time decision indication portion 73 forms this rotating speed and passes to the structure of drive control part main body (motor control part) 201 duration of runs.
Drive control part main body 201 control air compressors 105 improve the rotating speed of its motor, send the indication with the high rotation speed operation stipulated time.
Fig. 6 representes the example that the running of the oxygen concentrating device 10 of this embodiment is controlled, the flow chart of the control when especially representing its starting.
In the drawings, user is rotated on and off switch 14 and the energized of the guidance panel 13 of Fig. 1 and oxygen concentrating device illustrated in fig. 2 10, carries out flow set, entry into service (ST10) through operation oxygen flow configuration switch 16.
Thus, judge whether it is that the flow of the oxygen that generated is the running (ST11) of low discharge at the flow set judging part 71 of Fig. 5 explanation.
Flow set judging part 71 is judged as when being the setting flow more than the predefined regulation flow, gets into step 12, continues the running (ST12) of the high flow capacity as setting.
Promptly; The oxygen flow of setting via oxygen flow configuration switch 16 is if surpass for example 1L (1 liter of per minute oxygen flow); The compressed-air actuated pressure that is then caused by air compressor 105 improves comparatively rapid; Therefore the external diameter of piston cup becomes common size than earlier, can directly remain in operation and does not need the leakage countermeasure of piston.
To this, if the oxygen flow of setting is lower than 1L, then the motor speed of air compressor 105 is for example 1000rpm, gets into step 13.
In step 13, judge whether the ambient temperature of putting of oxygen concentrating device 10 is low temperature.For example will be defined as " low temperature " and be stored in storage device 210, be judged as the running environment when not being " low temperature ", get into step 14, continue slow-revving running at the ambient temperature judging part 72 of this Fig. 5 for the situation below 10 degree.
That is, even the motor of air compressor 105 is low rotations, if surrounding is not a low temperature, the external diameter that then can be judged as piston cup is undergauge not too, thinks and can leak hardly.
To this; When the running environment that is judged as oxygen concentrating device 10 is low temperature (ST13); The instruction of 72 pairs of rotating speed time of ambient temperature judging part decision indication portion; Based on the data of storage device 210, from this rotating speed and the corresponding list data of actual temp etc. obtain necessary rotating speed and continuation time in this running of carrying out.
And 73 pairs of motor control part as drive control part main body 201 of rotating speed time decision indication portion are indicated the for example running of 1300rpm (ST15) of rotating speed that is higher than the motor speed of 1000rpm with the time of lasting which kind of degree of which kind of rotation.
Drive control part main body 201 is from beginning with high-revolving running; Measure by 207 time starteds of timing portion; The time of remaining in operation and being predetermined with high rotating speed; That is, continued to be equivalent to think the time (ST16) that the external diameter of piston cup is heated and returned common size because pressure improves, thereafter with common rotating speed promptly with the corresponding rotating speed of setting flow remain in operation (ST17).
Fig. 7 is the figure of expression as the structure of the start-control device 70 of the oxygen concentrating device 10 of the 2nd embodiment.
Scope shown in the chain-dotted line, that is, the scope shown in the symbol 200, the part of the structure of central control part 200 that can be through utilizing Fig. 4 realizes.
Promptly; Central authorities' control part 200 is by comprising that the control circuit (IC) that is used to control the control part that whole CPU (Central Processing Unit) constituted constitutes, and is connected with real-time clock, temperature sensor 125, storage device 210 as timing portion 207 at this central authorities' control part 200.Storage device 210 can have RAM (Random Access Memory), ROM (Read Only Memory) or flash memory etc. usually in central its part of control part 200 internal configurations, and these connect via bus with other devices.Above-mentioned CPU is except carrying out regulated procedure handles, also the ROM that is connected with bus of control etc.ROM comprises various programs, various information etc.RAM has the function as the zone, is used for contrasting memory content, expansion and the performing a programme of CPU routine processes.
In addition, be connected with air compressor 105 at central control part 200 via drive control part main body 201.
Central authorities' control part 200 has flow set judging part 71 and ambient temperature judging part 72; Thereby said flow set judging part 71 is connected and is used to hold the setting flow that the user sets through setting button 16 with oxygen flow, and said ambient temperature judging part 72 can hold with air compressor 105 extremely near the temperature at position through importing from the measured signal of temperature sensor 125, judge the ambient temperature as the operating environment of air compressor thus.
In addition, this ambient temperature judging part 72 determines indication portions 73 to be connected with storage device 210 and central 200 contained rotating speed times of control part.The cooling fan of the ambient temperature of air compressor 105 and this air compressor 105 of cooling is that the relation of rotating speed of the fan motor of blowing fan 104 is kept at storage device 210 by the form with the list data that is predetermined etc.Rotating speed time decision indication portion is connected with for example motor drive circuit (motor control part 201) as drive control part main body 201, and this motor drive circuit is connected with air compressor 105 and blowing fan 104.
The setting flow information that ambient temperature judging part 72 obtains from flow set judging part 71 when this setting flow is low discharge, with reference to the data of storage device 210, is observed the relation of this flow and ambient temperature.
In the data of storage device 210; Under this low discharge, the temperature that air compressor 105 is heated rises slowly, and (external diameter of the piston cup of air compressor 105 is undergauge owing to the relation of ambient temperature and temperature expansion coefficient owing to the relation with ambient temperature causes leaking at air compressor 105; Between piston cup and cylinder, produce the gap; Produce escape of air thus), when writing down in advance, send instruction based on these data.
That is, ambient temperature judging part 72 pairs of rotating speed times decision indication portion 73 sends instruction, the rotation of the fan motor of out-of-blast fan 104 (not shown) or reduce its rotating speed.Thus, do not cool off air compressor 105 or too cooling ground, carry out making the external diameter of the piston cup of undergauge to return the fan rotation of the degree of original size, and transmit the duration of runs of continuing its state.
Rotating speed time decision indication portion 73 is with this rotating speed and pass to drive control part main body (motor control part) 201 duration of runs.
Drive control part main body 201 sends control blowing fan 104, improves the rotating speed of its motor, with the indication of high rotation speed operation stipulated time.
Fig. 8 representes the example that the running of the oxygen concentrating device 10 of this embodiment is controlled, the flow chart of the control when especially representing its starting.
In the drawings, user is rotated on and off switch 14 and the energized of the guidance panel 13 of Fig. 1 and oxygen concentrating device illustrated in fig. 2 10, carries out flow set, entry into service (ST20) through operation oxygen flow configuration switch 16.
Thus, the flow set judging part 71 of Fig. 5 explanation judges whether it is that the flow of the oxygen that generated is the running (ST21) of low discharge.
Flow set judging part 71 is judged as when being the setting flow more than the predefined regulation flow, gets into step 12, continues the running (ST22) of the high flow capacity as setting.
Promptly; The oxygen flow of setting via oxygen flow configuration switch 16 is if surpass for example 1L (1 liter of per minute oxygen flow); The compressed-air actuated pressure that is then caused by air compressor 105 improves comparatively rapid; So the external diameter of piston cup is than become common size earlier, therefore can directly remain in operation does not need the leakage of piston countermeasure.
With respect to this, if the oxygen flow of setting is lower than 1L, then the motor speed of air compressor 105 is for example 1000rpm, gets into step 13.
In step 13, judge whether the ambient temperature of putting of oxygen concentrating device 10 is low temperature.For example will be defined as " low temperature " and be stored in storage device 210, be judged as the running environment when not being " low temperature ", get into step 14, continue slow-revving running at the ambient temperature judging part 72 of this Fig. 5 for the situation below 10 degree.
That is, even the motor of air compressor 105 is low rotations, if surrounding is not a low temperature, the external diameter that then can be judged as piston cup is undergauge not too, thinks and can leak hardly.
With respect to this; When the running environment of judging oxygen concentrating device 10 is low temperature (ST23); The instruction of 72 pairs of rotating speed time of ambient temperature judging part decision indication portion; Based on the data of storage device 210, from this rotating speed and the corresponding list data of actual temp etc. obtain the relevant data of action of necessary blowing fan in this running of carrying out.
Particularly; Rotating speed time decision indication portion 73 is based on the out-of-blast fans 104 of these data (ST25) or obtain the low rotation speed of the fan of the pairing rotation speed of the fan of this setting flow than the default value decision, to which kind of rotation to continue the time (ST24) of which kind of degree with as the motor control part indication of drive control part main body 201.
Drive control part main body 201 begins from the running that stops blowing fan 104 or drive with the above-mentioned slow-speed of revolution; By timing portion 207 beginning Measuring Time; To be predetermined the time, promptly to be equivalent to think that the external diameter of piston cup returns the time of common size because pressure improves and quilt is heated; Stop this blowing fan 104 or continue low speed rotation (ST26), thereafter, as one man determine the rotating speed of blowing fan 104 remain in operation (ST27) with rotation speed of the fan with the default value of the corresponding decision of rotating speed of air compressor 105.
With reference to Fig. 9, this curve be shown in oxygen concentrator 10 under the ambient temperature below 10 degree from non-action status start to surge tank 101 reach time till the 70kPa, with the relation of blowing fan 104 actions.
Shown in chain-dotted line, after the starting,, then compare with the running of the fan operating state shown in the double dot dash line if stop cooling fan, reached 70kPa in about in advance about 3 minutes.
Figure 10 is the figure of expression as the structure of the start-control device 80 of the oxygen concentrating device 10 of the 3rd embodiment.
In Figure 10, the scope shown in the chain-dotted line of start-control device 80, that is, the scope shown in the symbol 200, the part of the structure of central control part 200 that can be through utilizing Fig. 4 realizes.
Need to prove, in Figure 10, be same structure to the position that marks same-sign with Fig. 5, therefore omits identical explanation, below, be that the center describes with the difference.
The start-control device 80 of Figure 10 is different with Fig. 5's, and blowing fan 104 also carries out special control when starting.That is,,, in storage device 210, preserve the data that are used to control to air compressor 105 and blowing fan 104 Spin Control together in when starting.After having judged ambient temperature, utilize the air compressor rotation speed of the fan time decision indication 73-1 of portion drive air compressor 105 and blowing fan 104.
With reference to the table of Figure 11, the characteristic of the starting control of this start-control device 80 is described.
The blowing fan 104 of oxygen concentrating device 10 is to be used for carrying out refrigerative cooling fan to causing pressure to uprise in the driving owing to air compressor 105 becoming pyritous device.
Therefore, in the past, when the rotating speed of air compressor is per minute 1000rmp, that is, the built-in motor speed of air compressor also drove blowing fan and cooled off when the such low speed rotation of 1000rmp.This expression " has " the refrigerative meaning.
The compressed air integrated flux that passed through after 3 minutes this moment is 15L, and the integrated flux that has passed through after 5 minutes is 26L.
But,, do not drive blowing fan 104 and stop cooling if when the starting of Figure 12, making the air compressor rotating speed is 1000rmp; The compressed air integrated flux that has then passed through after 3 minutes is 14L; Integrated flux after 5 minutes is 28L, if control when carrying out the starting of Figure 12, the compressed air integrated flux that has then passed through after 3 minutes is 25L; Integrated flux after 5 minutes is 39L, can improve integrated flux significantly.
Figure 12 representes the example that the running of the oxygen concentrating device 10 of this embodiment is controlled, the flow chart of the control when especially representing its starting.
In the drawings, user is rotated on and off switch 14 and the energized of the guidance panel 13 of Fig. 1 and oxygen concentrating device illustrated in fig. 2 10, carries out flow set, entry into service (ST30) through operation oxygen flow configuration switch 16.
Thus, the flow set judging part 71 of Figure 10 explanation judges whether it is that the flow of the oxygen that generated is the running (ST31) of low discharge.
Flow set judging part 71 is judged as when being the setting flow more than the predefined regulation flow, gets into step 32, continues the running (ST32) of the high flow capacity as setting.If for example oxygen flow is the operation mode of 2L, the rotating speed of then for example establishing the air compressor rotating speed and be 1700rpm, blowing fan is 2500rpm.
Perhaps, the rotating speed that when oxygen flow was the operation mode of 3L, for example to establish the air compressor rotating speed be 2700rpm, establish blowing fan is 3700rpm.
Promptly; The oxygen flow of setting via oxygen flow configuration switch 16 is if surpass for example 1L (1 liter of per minute oxygen flow); The compressed-air actuated pressure that is then caused by air compressor 105 improves comparatively rapid; The leakage countermeasure that does not need piston so the external diameter of piston cup than becoming common size earlier, therefore can directly remain in operation.
With respect to this, if the oxygen flow of setting is lower than 1L, then the motor speed of air compressor 105 is for example 1000rpm, gets into step 33.
In step 33, judge whether the ambient temperature of putting of oxygen concentrating device 10 is low temperature (ST33).For example the situation below 10 degree is defined as " low temperature " and is stored in storage device 210; Be judged as the running environment when not being " low temperature " at the ambient temperature judging part 72 of this Figure 10; Get into step 34, continue also to drive blowing fan 104 and cool off with the default value running, promptly with slow-speed of revolution running.This is for the heating that prevents air compressor 105 (ST34).For example if select the operation mode of 1L, the rotating speed of then for example establishing the air compressor rotating speed and be 1000rpm, blowing fan is 1600rpm.
That is, even the motor of air compressor 105 is low rotations, if surrounding is not a low temperature, the external diameter that then can be judged as piston cup is undergauge not too, thinks and can leak hardly.
With respect to this; When the running environment of judging oxygen concentrating device 10 is low temperature (ST33); 72 pairs of air compressor rotation speed of the fan time of the ambient temperature judging part decision indication 73-1 of portion instruction; Based on the data of storage device 210, from each rotating speed of air compressor and fan and the corresponding list data of ambient temperature etc., obtain and the rotating speed of necessary motor speed in this running of carrying out and blowing fan 104, the data of its running continuation time correlation.
Whether ambient temperature is that the undergauge of the external diameter that cryogenic threshold value can be through the piston cup in the air compressor 105 of measuring oxygen concentrating device in advance produces under the ambient temperature of which kind of degree and decides, and is stored in storage device 210.Its threshold value for example is 10 degree.
And; The air compressor rotation speed of the fan time decision indication 73-1 of portion does not carry out the rotation of blowing fan 104 to indicate the for example running of 1300rpm of rotating speed that is higher than the motor speed of 1000rpm with the time of lasting which kind of degree of which kind of rotation as the motor control part of drive control part main body 201.
Drive control part main body 201 is from beginning with high-revolving running; Measured by 207 time starteds of timing portion, (for example, 1300rpm) running continues to be predetermined the time with high rotating speed; Promptly; Continued to be equivalent to think that the external diameter of piston cup returns the time of common size because pressure improves and quilt is heated, for example 3 minutes, and out-of-blast betwixt fan 104 (ST35).
When continuing its running, during the process at the appointed time, for example during 3 minutes the process in, obtain the warm-up time (ST36) of the air compressor 105 that the rising owing to pressure causes.
Then, hang down the air compressor rotating speed in the state decline of out-of-blast fan 104.For example make air compressor 105 be 1000rpm, and for example 7 minutes continuous running stipulated time (ST37, ST38).Out-of-blast fan, reduction air compressor rotating speed are for when realizing setting flow, can reduce the air compressor temperature necessarily.
Its rear drive blowing fan 104 is 1600rpm with the default value of low discharge, the rotating speed that for example air compressor rotating speed is 1000rpm, blowing fan, and (ST39) remains in operation.
As previously discussed, according to this embodiment, even the oxygen concentrating device that when low rotary area starts, also can after starting just, just stable raw air be supplied to the adsorption section can be provided.
The invention is not restricted to above-mentioned each embodiment.
In the above-described embodiment, can suitably determine the rotating speed of air compressor, the rotating speed of blowing fan according to the size or the capacity of oxygen concentrating device.
The content of above-mentioned embodiment record can be omitted its part, also can with above-mentioned unaccounted other structural groupings, all do not exceed scope of the present invention.
Symbol description
10... oxygen concentrating device, 70,80... start-control device, 71... flow set judging part; 72... the ambient temperature judging part, 73... rotating speed time decision indication portion, 104... blowing fan; 105... air compressor, 125... temperature sensor, 200... central authorities control part; 201... the drive control part main body, 207... timing portion, 210... storage device

Claims (14)

1. oxygen concentrating device; Comprise compressed air generation portion and adsorption section; Said compressed air generation portion is built-in with the rotary body of driven plunger, produces compressed air, and said adsorption section imports to said compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in the said inside; It is characterized in that
Said compressed air generation portion has:
Control part is controlled based on the said oxygen flow that generates, and the rotating speed that makes said rotary body is suitable rotating speed,
Said control part drives said rotary body in when starting device with the high rotating speed of rotating speed than the rotary body of said decision.
2. oxygen concentrating device as claimed in claim 1 is characterized in that,
Comprise the mechanism of the oxygen flow that switches said generation, it constitutes: when being set at little oxygen flow and turning round, based on the oxygen flow of said setting, drive said rotary body with the rotating speed higher than the rotating speed of the said rotary body that is predetermined.
3. according to claim 1 or claim 2 oxygen concentrating device is characterized in that,
Mechanism with ambient temperature that checkout gear places; It constitutes: if detect the temperature below the regulation through said temperature testing organization; Then, drive said rotary body with the rotating speed higher than the rotating speed of the said rotary body that is predetermined based on the oxygen flow of setting.
4. like each described oxygen concentrating device in the claim 1～3, it is characterized in that,
Have and be used to suppress the cooling fan that temperature that the raising owing to the pressure of said compressed air generation portion and rotating speed causes rises; Have based on the said oxygen flow that generates and control to become the control part of suitable rotation speed of the fan; Constituting of said control part: stop said cooling fan in when starting device, or drive said fan with the low rotating speed of rotating speed than the fan of said decision.
5. the method for starting-controlling of an oxygen concentrating device, said oxygen concentrating device comprises compressed air generation portion and adsorption section,
Said compressed air generation portion produces compressed air, is built-in with the rotary body of driven plunger,
Said adsorption section imports to said compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in the said inside,
It is characterized in that,
When starting, the oxygen flow of setting during based on starting, the running when starting with the rotating speed higher than the rotating speed of the said rotary body that is predetermined.
6. the method for starting-controlling of oxygen concentrating device as claimed in claim 5 is characterized in that,
Judgement said when starting selected oxygen set flow, when being set at little oxygen flow and turning round, based on the oxygen flow of said setting, the running when starting with the rotating speed higher than the rotating speed of the said rotary body that is predetermined.
7. like the method for starting-controlling of claim 5 or 6 described oxygen concentrating devices, it is characterized in that,
Testing environment temperature when said starting is if detect the temperature below the regulation, then based on the oxygen flow of setting, the running when starting with the rotating speed higher than the rotating speed of the said rotary body that is predetermined.
8. an oxygen concentrating device comprises compressed air generation portion and adsorption section,
Said compressed air generation portion produces compressed air, is built-in with the rotary body of driven plunger,
Said adsorption section imports to said compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in the said inside,
It is characterized in that,
Have cooling fan, suppress because the temperature rising that utilizes said compressed air generation portion that pressure and rotating speed are improved to cause,
Also have control part simultaneously, control based on the said oxygen flow that generates, making said fan is suitable rotating speed,
Constituting of said control part: when the device starting, stop said cooling fan, or, drive said fan with the low rotating speed of rotating speed than the fan that determines based on said oxygen flow.
9. oxygen concentrating device as claimed in claim 8 is characterized in that,
Have the mechanism of the oxygen flow that switches said generation, it constitutes: when being set at little oxygen flow and turning round, based on the oxygen flow of said setting, to drive said cooling fan than the low rotating speed of the said speed of cooling fan that is predetermined.
10. like claim 8 or 9 described oxygen concentrating devices, it is characterized in that,
Mechanism with ambient temperature that checkout gear places; It constitutes: if detect the temperature below the regulation through said temperature testing organization; Then stop cooling fan corresponding to the oxygen flow of setting, or based on above-mentioned oxygen flow, with the low rotating speed drive fan of rotation speed of the fan than decision.
11. like each described oxygen concentrating device in the claim 8～10, it is characterized in that,
Said compressed air generation portion has that to control the rotating speed that makes said rotary body based on the said oxygen flow that generates be the control part of suitable rotating speed, the constituting of said control part: when the device starting, drive said rotary body with the high rotating speed of rotating speed than the rotary body of said decision.
12. the method for starting-controlling of an oxygen concentrating device, said oxygen concentrating device comprise compressed air generation portion, adsorption section and cooling fan,
Said compressed air generation portion produces compressed air, is built-in with the rotary body of driven plunger,
Said adsorption section imports to said compressed air inside and separates generation oxygen through the adsorbents adsorb nitrogen that is filled in the said inside,
Said cooling fan is used to suppress rise owing to the pressure of said compressed air generation portion and rotating speed improve the temperature that causes,
It is characterized in that,
When starting, stop said cooling fan, perhaps based on said oxygen flow, with the low rotating speed drive fan of rotation speed of the fan than decision.
13. the method for starting-controlling of oxygen concentrating device as claimed in claim 12 is characterized in that,
Judgement said when starting selected oxygen set flow, when being set at little oxygen flow and turning round, based on the oxygen flow of said setting, the running when starting than the low rotating speed of said speed of cooling fan that is predetermined.
14. the method for starting-controlling like claim 12 or 13 described oxygen concentrating devices is characterized in that,
Testing environment temperature when said starting if detect the temperature below the regulation, then stops cooling fan corresponding to the oxygen flow of setting, or based on said oxygen flow, the running when starting with the low rotating speed of rotation speed of the fan than decision.
CN201080027497.6A 2009-06-18 2010-06-17 Oxygen concentrator and start-up control method for same Expired - Fee Related CN102458550B (en)

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JP2009145482A JP2011000537A (en) 2009-06-18 2009-06-18 Oxygen concentrator and starting control method of the same
JP2009-145483 2009-06-18
JP2009145483A JP5404203B2 (en) 2009-06-18 2009-06-18 Oxygen concentrator
JP2009-145482 2009-06-18
PCT/JP2010/004063 WO2010146870A1 (en) 2009-06-18 2010-06-17 Oxygen concentrator and start-up control method for same

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Publication number Priority date Publication date Assignee Title
CN111491685A (en) * 2017-12-19 2020-08-04 皇家飞利浦有限公司 Ventilation system with cold override humidification control
CN112996584A (en) * 2018-11-15 2021-06-18 帝人制药株式会社 Oxygen concentration device, control method, and control program
TWI764455B (en) * 2019-12-27 2022-05-11 日商旭化成醫療股份有限公司 Test device for concentrator

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JP2008295594A (en) * 2007-05-29 2008-12-11 Ngk Spark Plug Co Ltd Oxygen concentrator

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Publication number Priority date Publication date Assignee Title
CN111491685A (en) * 2017-12-19 2020-08-04 皇家飞利浦有限公司 Ventilation system with cold override humidification control
CN111491685B (en) * 2017-12-19 2023-09-12 皇家飞利浦有限公司 Ventilation system with cold override humidification control
CN112996584A (en) * 2018-11-15 2021-06-18 帝人制药株式会社 Oxygen concentration device, control method, and control program
TWI764455B (en) * 2019-12-27 2022-05-11 日商旭化成醫療股份有限公司 Test device for concentrator

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