EP1197244A2 - Atemschutzeinrichtung für eine Schutzeinrichtung beispielsweise Schutzmaske, Schutzhaube oder Schutzanzug - Google Patents
Atemschutzeinrichtung für eine Schutzeinrichtung beispielsweise Schutzmaske, Schutzhaube oder Schutzanzug Download PDFInfo
- Publication number
- EP1197244A2 EP1197244A2 EP01810969A EP01810969A EP1197244A2 EP 1197244 A2 EP1197244 A2 EP 1197244A2 EP 01810969 A EP01810969 A EP 01810969A EP 01810969 A EP01810969 A EP 01810969A EP 1197244 A2 EP1197244 A2 EP 1197244A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- blower
- sensor
- protection device
- respiratory protection
- impeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/006—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort with pumps for forced ventilation
Definitions
- the invention relates to a breathing apparatus for a Protective device, for example a protective mask, protective hood or Protective suit, with a filter arranged in an air duct, a blower that has an air guide housing and a bearing in it Has impeller and controlled by a sensor is, with a motor for driving the impeller and one Energy source and an electronic control circuit, which controls the performance of the blower.
- a Protective device for example a protective mask, protective hood or Protective suit
- a filter arranged in an air duct
- a blower that has an air guide housing and a bearing in it Has impeller and controlled by a sensor is, with a motor for driving the impeller and one Energy source and an electronic control circuit, which controls the performance of the blower.
- Respiratory protection devices of this type are available in numerous designs well known.
- the fan creates an air flow and thereby supports breathing.
- the protective device supplied air flow should be kept as constant as possible and correspond to a setpoint.
- Another difficulty is that filters have different resistances and the air flow is therefore dependent on the built-in filter.
- a respiratory protection device is known from DE 195 06 360 become, at which the performance of the blower is based of the fan's current and rotation speed becomes. This is intended to be the flow rate supplied to a gas mask kept constant in air.
- the blower serves here itself as a detector that regulates its performance becomes.
- capacitive electrodes are arranged on the blower Information according to the speed of the impeller to one by means of an oscillator and a phase control loop Counter of a microcontroller are passed on.
- the current of the blower motor is measured and via a current measuring Amplifier placed on the A / D converter of the microcontroller.
- the capacitive electrodes with the impeller are in a circuit connected to the fan, taking capacity changes this Electrodes cause a change in the frequency of the oscillator.
- the air flow should therefore be independent of the filter resistance his.
- the electronics required here are comparative complex and complicated.
- the senor is designed as a fan with a freely rotating impeller and has a device for signaling.
- the device a Hall element, a light barrier, or be an inductive or capacitive encoder.
- Such signalers are inexpensive elements and result in precise signal delivery.
- Appropriate matching electronics form the signal from the sensor a control signal for the fan.
- the controlled variable is preferred an airflow setpoint.
- the respiratory protection device shown in Fig. 1 has an air hose 2 on the for the supply of air in the direction of Arrow 21 to a protective mask 1 or to another protective device, for example on a protective hood or a protective suit connected.
- the air supplied to the protective mask 1 is sucked in, for example, at a nozzle 13 and in the direction the arrow 24 fed to at least one filter 6.
- the Filter 6 shown here only schematically can, for example a carbon filter or another suitable filter. It Several filters 6 can also be provided.
- the filter 6 cleaned air reaches a blower in the direction of arrow 23 5, which is preferably a radial fan and in more common Way has an impeller 19, which by an electric motor 20th is driven.
- the electric motor 20 is powered by an energy source 8, for example a battery, a rechargeable Accumulator or powered by an external power source.
- the fan 5 promotes the air in the direction of arrow 22 in one Air duct 26 to an air flow sensor 3, which is similar to that Blower 5 an air guide housing 18 and a rotatable in this bearing impeller 15.
- the impeller 15 is, however not driven, but turns passively due to the air flow, which through the air duct housing 18 to the hose 2nd passes.
- the mass of the impeller 15 is as small as possible held and a bearing 16 preferably has one if possible little resistance.
- the speed of the impeller 15 is proportional to the volume or mass flow through the air duct housing 18 passes through.
- FIG. 3 and 4 show the structure of the airflow sensor 3.
- Das Air duct housing is cylindrical as can be seen and has in Radially extending webs 17 arranged at a distance from one another, to which the bearing 16 is attached.
- a signal generator 14 is arranged so that it detects rotations of the Impeller 15 responds.
- the signal generator 14 is preferred a Hall element.
- inductive or capacitive are also conceivable Signal transmitter. After all, others are, for example optical signal generator conceivable. Such signal generators are in themselves known and customary.
- Fig. 2 shows in particular the control loop R by the Airflow sensor 3, the control circuit 7 and the blower 5, the Lines 9 and 10 and the air flow 22 is formed.
- the Air flow 22 flows through the air duct 26 and the air duct housing 3 and finally passes through the air hose 2 into the protective mask 1.
- Control circuit 7 an airflow setpoint can be supplied.
- the impeller 15 rotates more slowly, because the fan 5 conveys less air.
- the control device 7 now adjusts until the set airflow setpoint 22 is reached again.
- the blower 5 is regulated accordingly so that its Power is greater according to the higher resistance.
- the control circuit 7 can have a display 12, for example shows the battery status or the target air flow.
- the display can be visual, acoustic or vibrating.
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
- Fig. 1
- schematisch eine erfindungsgemässe Atemschutzvorrichtung mit einer hier lediglich angedeuteten Gasmaske als Schutzeinrichtung,
- Fig. 2
- schematisch einen geregelten Regelkreis,
- Fig. 3
- schematisch eine Ansicht eines als Fan ausgebildeten Sensors,
- Fig. 4
- eine weitere schematische Ansicht des Sensor gemäss Fig. 3,
- Fig. 5
- ein Diagramm mit Messkurven einer Durchflussregelung,
- Fig. 6
- das Diagramm gemäss Fig. 1, wobei die Strombegrenzung 420mA beträgt.
Claims (10)
- Atemschutzvorrichtung für eine Schutzeinrichtung (1), beispielsweise Schutzmaske, Schutzhaube oder Schutzanzug, mit wenigstens einem in einem Luftkanal (26) angeordneten Filter (6), einem Gebläse (5), das ein Luftführungsgehäuse (25) und ein in diesem drehbar gelagertes Flügelrad (19), mit einem Motor (20) für den Antrieb des Flügelrades (19), welches Flügelrad (19) von einem Sensor (3) gesteuert ist, sowie einer Energiequelle (8) und einer elektronischen Steuerschaltung (7), welche die Leistung des Gebläses (5) steuert, dadurch gekennzeichnet, dass der Sensor (3) ein im Luftkanal (26) angeordneter Volumen- oder Massenstrom-Sensor ist, der unabhängig vom Gebläse (5) ist und der über die Steuerschaltung (7) das Gebläse (5) so steuert, dass der Atemluftstrom im wesentlichen konstant bleibt.
- Atemschutzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Sensor (3) ein frei drehendes Flügelrad (15) aufweist, das vom Luftstrom angetrieben wird.
- Atemschutzvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das Flügelrad (15) mit einem Signalgeber (14) zusammenarbeitet.
- Atemschutzvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das Flügelrad (15) in einem zylindrischen Luftführungsgehäuse (18) gelagert ist.
- Atemschutzvorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass der Sensor (3) an einem Gehäuse (18) einen Signalgeber (14) aufweist.
- Atemschutzvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Signalgeber (14) ein Hallelement oder ein optischer Signalgeber ist.
- Atemschutzvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Signalgeber (14) ein Induktiv- oder Kapazitiv-Signalgeber ist.
- Atemschutzvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Sensor (3) in Strömungsrichtung gesehen nach dem Gebläse (5) angeordnet ist.
- Atemschutzvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Sensor (3) in Strömungsrichtung gesehen vor dem Gebläse (5) angeordnet ist.
- Atemschutzvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Gebläse (5) ein Radialgebläse ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH20032000 | 2000-10-11 | ||
CH20032000 | 2000-10-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1197244A2 true EP1197244A2 (de) | 2002-04-17 |
EP1197244A3 EP1197244A3 (de) | 2002-10-23 |
Family
ID=4567082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01810969A Withdrawn EP1197244A3 (de) | 2000-10-11 | 2001-10-04 | Atemschutzeinrichtung für eine Schutzeinrichtung beispielsweise Schutzmaske, Schutzhaube oder Schutzanzug |
Country Status (2)
Country | Link |
---|---|
US (1) | US20020062830A1 (de) |
EP (1) | EP1197244A3 (de) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2427564A (en) * | 2003-03-27 | 2007-01-03 | Helmet Integrated Syst Ltd | Powered respirator |
WO2008108789A1 (en) * | 2007-03-08 | 2008-09-12 | Neurophysiological Concepts Llc | Standalone cpap device and method of using |
US7810492B2 (en) | 2003-03-27 | 2010-10-12 | Helmet Integrated Systems Limited | Respirator |
WO2011019778A1 (en) * | 2009-08-11 | 2011-02-17 | 3M Innovative Properties Company | Method of controlling a powered air purifying respirator |
WO2015051897A1 (de) * | 2013-10-07 | 2015-04-16 | Dräger Safety AG & Co. KGaA | Gebläsefiltergerät, atemschutzsystem und verfahren |
CN105396234A (zh) * | 2015-12-14 | 2016-03-16 | 海峡医疗器械工程研究中心(常州)有限公司 | 用于微细悬浮粒辅助净化的湿式动力空气净化鼻罩 |
CN105498111A (zh) * | 2015-12-14 | 2016-04-20 | 海峡医疗器械工程研究中心(常州)有限公司 | 用于微细悬浮粒辅助净化的自然呼吸湿式净化鼻罩 |
EP3287641A1 (de) * | 2016-08-23 | 2018-02-28 | ebm-papst Mulfingen GmbH & Co. KG | Verfahren zur volumenstromregelung eines ventilators |
WO2018036802A1 (de) * | 2016-08-23 | 2018-03-01 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Radialgebläse mit flügelrad zur volumenstrommessung |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100500602B1 (ko) * | 2002-09-18 | 2005-07-14 | 박세현 | 휴대용 호흡기 겸용 방독면 및 그 사용방법 |
FR2853838A1 (fr) * | 2003-04-18 | 2004-10-22 | Taema | Ensemble respiratoire nasal avec turbine dans le traitement de l'apnee du sommeil |
US7169112B2 (en) * | 2003-09-10 | 2007-01-30 | The United States Of America As Represented By The Secretary Of The Army | Non-contact respiration monitor |
FR2865654B1 (fr) | 2004-02-03 | 2006-09-22 | Roland Marais | Procede et dispositifs permettant un controle total de la protection respiratoire a ventilation assistee basee sur l'usage des filtres |
DE102004013453B4 (de) * | 2004-03-11 | 2006-07-27 | Msa Auer Gmbh | Gebläsefiltergerät für Atemschutzhauben und -masken |
US9192795B2 (en) | 2011-10-07 | 2015-11-24 | Honeywell International Inc. | System and method of calibration in a powered air purifying respirator |
US9808656B2 (en) | 2012-01-09 | 2017-11-07 | Honeywell International Inc. | System and method of oxygen deficiency warning in a powered air purifying respirator |
CN103815588A (zh) * | 2014-01-26 | 2014-05-28 | 苏州智信通电子科技有限公司 | 一种具有污染物浓度测量显示功能的过滤口罩 |
US11433262B1 (en) * | 2018-11-01 | 2022-09-06 | The United States Of America As Represented By The Secretary Of The Army | Positive pressure dog respirator |
KR102293918B1 (ko) * | 2019-06-14 | 2021-08-26 | 엘지전자 주식회사 | 마스크 장치 및 그 제어 방법 |
KR102293924B1 (ko) * | 2019-06-19 | 2021-08-26 | 엘지전자 주식회사 | 마스크 장치 및 그 제어 방법 |
CN111298314A (zh) * | 2020-03-20 | 2020-06-19 | 中山市赛恩电器科技有限公司 | 呼吸防护装置以及防护穿戴系统 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19506360A1 (de) | 1994-02-25 | 1995-08-31 | Kemira Safety Oy | Methode zur Regulierung der einer Gasmaske zugeführten Durchflußmenge an Luft, außerdem eine Gasmaske |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2049925B (en) * | 1979-04-30 | 1984-01-25 | Martindale Protection Ltd | Flow rate sensor |
US4513233A (en) * | 1983-12-22 | 1985-04-23 | Gte Automatic Electric Incorporated | Pulse monitor circuit for use as a fan speed monitor |
NL194355C (nl) * | 1988-05-06 | 2002-01-04 | Indolec B V | Ventilator. |
CH679122A5 (de) * | 1989-09-29 | 1991-12-31 | Micronel Ag | |
DE4111001A1 (de) * | 1991-03-19 | 1992-09-24 | Siebert & Kuehn Dr | Vorrichtung zur bestimmung der stroemungsgeschwindigkeit eines mediums, vorzugsweise eines fluids |
WO1996004043A1 (en) * | 1994-08-01 | 1996-02-15 | Safety Equipment Australia Pty. Ltd. | Breathing apparatus |
US6401713B1 (en) * | 1999-05-05 | 2002-06-11 | Respironics, Inc. | Apparatus and method of providing continuous positive airway pressure |
-
2001
- 2001-10-04 EP EP01810969A patent/EP1197244A3/de not_active Withdrawn
- 2001-10-11 US US09/975,770 patent/US20020062830A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19506360A1 (de) | 1994-02-25 | 1995-08-31 | Kemira Safety Oy | Methode zur Regulierung der einer Gasmaske zugeführten Durchflußmenge an Luft, außerdem eine Gasmaske |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2427564A (en) * | 2003-03-27 | 2007-01-03 | Helmet Integrated Syst Ltd | Powered respirator |
GB2427564B (en) * | 2003-03-27 | 2007-09-19 | Helmet Integrated Syst Ltd | Respirator |
US7810492B2 (en) | 2003-03-27 | 2010-10-12 | Helmet Integrated Systems Limited | Respirator |
WO2008108789A1 (en) * | 2007-03-08 | 2008-09-12 | Neurophysiological Concepts Llc | Standalone cpap device and method of using |
US9119979B2 (en) | 2009-08-11 | 2015-09-01 | 3M Innovative Properties Company | Method of controlling a powered air purifying respirator |
WO2011019778A1 (en) * | 2009-08-11 | 2011-02-17 | 3M Innovative Properties Company | Method of controlling a powered air purifying respirator |
WO2015051897A1 (de) * | 2013-10-07 | 2015-04-16 | Dräger Safety AG & Co. KGaA | Gebläsefiltergerät, atemschutzsystem und verfahren |
US10905902B2 (en) | 2013-10-07 | 2021-02-02 | Dräger Safety AG & Co. KGaA | Blower filter device, respirator system and method |
CN105396234A (zh) * | 2015-12-14 | 2016-03-16 | 海峡医疗器械工程研究中心(常州)有限公司 | 用于微细悬浮粒辅助净化的湿式动力空气净化鼻罩 |
CN105498111A (zh) * | 2015-12-14 | 2016-04-20 | 海峡医疗器械工程研究中心(常州)有限公司 | 用于微细悬浮粒辅助净化的自然呼吸湿式净化鼻罩 |
EP3287641A1 (de) * | 2016-08-23 | 2018-02-28 | ebm-papst Mulfingen GmbH & Co. KG | Verfahren zur volumenstromregelung eines ventilators |
WO2018036802A1 (de) * | 2016-08-23 | 2018-03-01 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Radialgebläse mit flügelrad zur volumenstrommessung |
US10927846B2 (en) | 2016-08-23 | 2021-02-23 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Radial fan having an impeller for volume flow measurement |
Also Published As
Publication number | Publication date |
---|---|
US20020062830A1 (en) | 2002-05-30 |
EP1197244A3 (de) | 2002-10-23 |
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