EP4009749A1 - Procédé de commande d'une source de plasma d'un appareil guidé à la main et appareil guidé à la main - Google Patents

Procédé de commande d'une source de plasma d'un appareil guidé à la main et appareil guidé à la main Download PDF

Info

Publication number
EP4009749A1
EP4009749A1 EP21209788.5A EP21209788A EP4009749A1 EP 4009749 A1 EP4009749 A1 EP 4009749A1 EP 21209788 A EP21209788 A EP 21209788A EP 4009749 A1 EP4009749 A1 EP 4009749A1
Authority
EP
European Patent Office
Prior art keywords
electrical
plasma source
plasma
resistance
treated
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.)
Pending
Application number
EP21209788.5A
Other languages
German (de)
English (en)
Inventor
Stefan Hassfurter
Michael Hohmann
Markus Kühnel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4009749A1 publication Critical patent/EP4009749A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D06M10/025—Corona discharge or low temperature plasma

Definitions

  • the invention relates to a method for controlling a plasma source of a hand-held device and such a hand-held device whose plasma source can be controlled using this method.
  • Plasmas have been used for some time because of their odor-inactivating and antimicrobial properties.
  • the causes of the antimicrobial effect of a plasma lie in the heat generated by the plasma, drying out, shear stress, UV radiation, free radicals and charges.
  • solid, liquid or gaseous, plasma is often referred to as the fourth state of aggregation.
  • low-pressure plasmas which are also referred to as cold plasmas and which are usually operated at room temperature.
  • cold plasmas have been used in medical technology for some time, including in the treatment of poorly healing wounds or wounds that do not heal, for example in so-called plasma pens, in which the antimicrobial effect of cold plasma is used.
  • odor components that can be cell components of a biological organism.
  • Substances that are particularly relevant to odors include butyric acid, sweat, settled cigarette smoke and others, i.e. generally odors that can be perceived as unpleasant.
  • non-odour-relevant molecules such as allergens, protein molecules, prions and the like can be eliminated or destroyed.
  • odor components which in the case of cell walls, bacteria, germs, viruses, fungi or other comparable microorganisms mainly consist of carbon compounds, are exposed directly to the plasma, they become negatively charged due to the bombardment with the electrons present in the plasma. Due to the electrostatic repulsion, this leads to mechanical stresses up to the point where the tensile strength is exceeded and the associated destruction of the odor molecules. Low-pressure plasmas are particularly well suited for inactivating odors on textile fabrics or on household surfaces or the like, since thermal damage to such a surface is not to be feared.
  • a hand-operated device is understood to mean a mobile device that a user moves manually—ie using one or both hands—over the surface to be treated while the device is in operation.
  • a hand-held device In contrast to stationary devices, such a hand-held device is typically portable by the user, which means that the device must be matched in terms of mass and dimensions.
  • a disadvantage of conventional handheld devices for treating a surface using a plasma is that the plasma source of the respective device is typically controlled independently of an external electrical resistance that the surface to be treated has together with a plasma source of the device.
  • This electrical external resistance of the device depends, among other things, strongly on the humidity or more generally on the electrical resistance of the surface to be treated. With a moist surface, the external electrical resistance of the device is lower than with a comparatively dry surface.
  • Conventional hand-operated devices are customary designed exclusively for an electrical design external resistance that is considered to be optimal or estimated to be average, which is not actually present for every treatment task. The result of this is that the hand-held device in question is subject to a large power loss if the external electrical resistance differs from the design external resistance, or the plasma source cannot be ignited.
  • the basic idea of the invention is therefore to equip the voltage source of a handheld device for treating a surface using a plasma with a variably configured electrical internal resistance and to adapt this electrical internal resistance during operation of the device to the electrical external resistance of the device, which can vary during operation.
  • This adjustment of the electrical internal resistance of the device as a function of the existing electrical external resistance can advantageously be used to adjust the electrical power of the plasma source of the device such that even with high electrical external resistances there is always only a low power loss. This generally means optimizing the power consumption of the device while ensuring proper functioning for a wider range of applications. Furthermore, the adaptation of the electrical internal resistance makes it possible for the plasma source to be reliably ignited even in the case of electrically highly conductive surfaces to be treated by means of the device.
  • a method according to the invention serves to control a plasma source of a handheld device for treating a surface by means of a plasma, in particular a cold plasma.
  • the surface to be treated can be an artificial or natural textile or ceramic or plastic or animal feather or leather or glass or wooden or metal surface.
  • the surface to be treated can therefore be made of textile materials such as natural, vegetable or animal (natural fibers such as tree, sheep's wool, silk, linen, felt) or artificial clothing fabrics (chemical fibers such as nylon) or ceramics, plastic, feathers, leather, glass, wood, or metal.
  • the plasma is generated by means of the plasma source of the device and applied to the surface to be treated.
  • an external electrical resistance of the device determined by the plasma source and the surface to be treated, is monitored while the plasma is being applied to the surface to be treated. Furthermore, while the plasma is being applied to the surface to be treated, a variable electrical internal resistance of an electrical voltage supply of the device, by means of which the plasma source of the device for generating the plasma is supplied with electrical energy, is adjusted as a function of the value of the electrical external resistance.
  • This has the advantageous result that the plasma source of the device can be reliably ignited even if the surface to be treated is made of electrically highly conductive materials.
  • the power loss can be kept low in the case of high external electrical resistances, so that the method enables the device to be operated in a particularly energy-saving manner.
  • an electrical supply voltage generated by the electrical voltage supply and with which the plasma source is electrically supplied is kept essentially constant during operation of the device.
  • the electrical current at the plasma source can thus be varied particularly easily by means of a transistor control of the device.
  • the internal electrical resistance is increased. This has the advantageous result that an electrical output current at the plasma source is reduced and thus a reduced electrical power of the plasma source is achieved, so that the electrical energy consumption of the device is reduced. This proves to be particularly advantageous when the electrical voltage source of the device is an electrical energy store integrated in the device, the capacity of which is then sufficient for longer charging-free operation.
  • the internal electrical resistance is reduced.
  • moist surfaces can be reliably freed from annoying odors.
  • the moisture of the surface which is treated by means of the device during operation, is monitored by means of at least one moisture sensor of the device, which is arranged at a distance from the plasma source. This allows a particularly simple monitoring of the external electrical resistance of the device, which depends directly on the moisture content of the surface.
  • a message in particular an acoustic and/or visual and/or haptic message, is sent to a user of the device by means of an output device of the device set up for this purpose to pre-dry the surface before (further) treating the surface with the device.
  • the user is thus given the opportunity either to pre-dry the surface to be treated in order to increase the external electrical resistance and thus reduce the power loss, or to accept the increased power loss and save the time required for the pre-drying.
  • variable electrical internal resistance is particularly preferably different from the electrical energy store of the device.
  • the internal resistance can thus be varied independently of the energy store.
  • variable electrical internal resistance and the electrical energy store are electrically connected in series with the plasma source and can be electrically connected or connected.
  • the invention also relates to a handheld device for treating a surface by means of a plasma, in particular a cold plasma.
  • a plasma for generating the plasma.
  • the device has an electrical power supply, by means of which the plasma source for generating the plasma can be supplied with electrical energy.
  • the electrical power supply has an electrical internal resistance that is designed to be variable.
  • the device comprises a control/regulating device for varying/controlling the electrical internal resistance, which is set up as described above for carrying out a method according to the invention.
  • the electrical power supply includes an electrical energy store integrated in the device, so that the device can be operated at least temporarily independently, in particular without drawing an electrical supply voltage from an electrical power supply system. This favors the handling and in particular the mobility of the device.
  • the device has at least one moisture sensor which is arranged at a distance from the plasma source such that moisture on the surface to be treated can be detected by means of the moisture sensor.
  • the device there are two moisture sensors located opposite one another with respect to a main feed direction of the device, between which the plasma source is arranged at a distance, so that when the device is advanced along the main feed direction, one moisture sensor is always in front of the plasma source and the other moisture sensor is always behind the plasma source is arranged.
  • one moisture sensor is always in front of the plasma source and the other moisture sensor is always behind the plasma source is arranged.
  • variable electrical internal resistance is particularly preferably different from the electrical energy store.
  • the internal resistance can thus be varied independently of the energy store.
  • variable electrical internal resistance and the electrical energy store are electrically connected in series with the plasma source and can be electrically connected or connected.
  • FIG. 1 1 is a perspective view of an example of a handheld device 1 according to the invention for treating a surface 3 by means of a plasma.
  • the surface 3, which can be treated by means of the handheld device 1, is, for example, an artificial or natural textile or ceramic or plastic or animal feathers or leather or glass or wooden or metal surface 3.
  • FIG. 2 shows another example of the handheld device 1 according to the invention in a further perspective view.
  • the handheld device 1 has a plasma source 2 for generating a plasma, which is, for example, a cold plasma.
  • FIG 3 a further example of the handheld device 1 according to the invention in the implementation of a method according to the invention for controlling the plasma source 2 of the handheld device 1 is illustrated in the form of a circuit diagram. It is understood that the device 1 according to the example of figure 1 in a manner analogous to the examples in Figures 2 and 3 has a plasma source 2 .
  • the respective hand-held device 1 includes an electrical power supply 4 with an electrical internal resistance Ri.
  • This electrical power supply 4 is used to supply the plasma source 2 with electrical energy during operation of the hand-held device 1 for generating the plasma.
  • the electrical internal resistance Ri is designed to be variable.
  • the electrical power supply 4 includes an electrical energy store 7 integrated in the device 1. The device 1 can thus be operated at least temporarily independently, ie without obtaining an electrical supply voltage from an external power supply system.
  • the variable internal electrical resistance Ri differs from the electrical energy store 7 .
  • the electrical internal resistance Ri can thus be varied independently of the energy store 7 .
  • variable electrical internal resistance Ri and the electrical energy store 7 can be electrically connected in series with the plasma source 2 for this purpose.
  • the device 1 has at least one moisture sensor 5 .
  • This moisture sensor 5 of the device 1 is arranged at a distance from the plasma source 2 of the device 1 such that moisture on the surface 3 to be treated can be detected by means of the moisture sensor 5 .
  • the device 1 can have two moisture sensors 5, which are arranged opposite one another with respect to a main feed direction V of the device 1—but this is not shown in the figures. These two humidity sensors 5 can be arranged in such a way that when the device 1 is advanced along a main advance direction V, one humidity sensor 5 is present in front of the plasma source 2 and the other humidity sensor 5 is present behind it.
  • the device 1 can thus be moved back and forth along the main feed direction V, it being possible to always determine the moisture currently present in front of the device 1 by means of one of the moisture sensors 5 . This allows a particularly simple multiple sweeping over of the surface 3 to be treated, without the device 1 having to be turned over.
  • the plasma source 2 of the handheld device 1 according to the invention Figures 1 to 3 is controlled by means of the method according to the invention, which will be presented as an example below.
  • the handheld device 1 has a control/regulating device CPU for varying/controlling the electrical internal resistance Ri, which is set up/programmed to carry out the method.
  • the plasma is generated by means of the plasma source 2 of the device 1 and is applied to the surface 3 to be treated.
  • the distance from the plasma source 2 to the surface 3 to be treated can expediently be about 0 mm, but also up to 1 mm.
  • the plasma source 2 touches the surface 3 to be treated.
  • the plasma acts on the surface 3 to be treated.
  • an external electrical resistance Ra of the device 1 determined by the plasma source 2 and the surface 3 to be treated is also monitored during the application of the plasma to the surface 3 to be treated.
  • the variable electrical internal resistance Ri of the electrical voltage supply 4 of the device 1, by means of which the plasma source 2 of the device for generating the plasma is supplied with electrical energy, is adapted during the application of the plasma to the surface 3 to be treated, depending on the value of the electrical external resistance Ra.
  • an electrical supply voltage U generated by the electrical voltage supply 4 and with which the plasma source 2 is electrically supplied is kept essentially constant during operation of the device 1 .
  • the device 1 according to figure 3 be equipped with its control/regulation device CPU and a measuring device 8 set up for measuring the supply voltage U.
  • the internal electrical resistance Ri is increased by means of the control/regulating device CPU.
  • the external electrical resistance Ra can be monitored by means of the measuring device 8 set up for measuring the supply voltage U and a measuring device 8 set up for measuring a supply current I in interaction with the control/regulating device CPU, compare figure 3 . If it is determined during the monitoring of the external electrical resistance Ra that the external electrical resistance Ra falls below a predetermined lower threshold value, the internal electrical resistance Ri of the device 1 is reduced according to the method, for example.
  • a variant of the method according to the invention also provides that the moisture of the surface 3, which is treated by means of the device 1 during operation, is monitored by means of at least one moisture sensor 5 of the device 1, which is arranged at a distance from the plasma source 2. For example, if the moisture on the surface 3 exceeds a predetermined limit value, a user of the device 1 is informed by means of an output device 6 of the device 1 set up for this purpose (see figure 1 ) sent a message.
  • This message can, for example, prompt the user to pre-dry the surface 3 before further treatment of the surface 3 using the Prompt device 1.
  • the message can be supplied to the user by means of the output device 6 of the device 1, for example acoustically and, alternatively or additionally, optically or haptically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Textile Engineering (AREA)
  • Plasma Technology (AREA)
EP21209788.5A 2020-12-01 2021-11-23 Procédé de commande d'une source de plasma d'un appareil guidé à la main et appareil guidé à la main Pending EP4009749A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020215103.2A DE102020215103A1 (de) 2020-12-01 2020-12-01 Verfahren zum Ansteuern einer Plasmaquelle eines handführbaren Geräts und handführbares Gerät

Publications (1)

Publication Number Publication Date
EP4009749A1 true EP4009749A1 (fr) 2022-06-08

Family

ID=78825042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21209788.5A Pending EP4009749A1 (fr) 2020-12-01 2021-11-23 Procédé de commande d'une source de plasma d'un appareil guidé à la main et appareil guidé à la main

Country Status (2)

Country Link
EP (1) EP4009749A1 (fr)
DE (1) DE102020215103A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006009481U1 (de) * 2006-06-17 2006-10-26 Naumann, Stefan, Langley Vorrichtung zur Behandlung von Oberflächen des menschlichen Körpers
US20140207053A1 (en) * 2011-05-05 2014-07-24 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. Device and method for the plasma treatment of surfaces and use of a device
CN205814739U (zh) 2016-05-20 2016-12-21 金科伟业（中国）有限公司 一种便携式灭菌消毒机
WO2017179819A1 (fr) * 2016-04-15 2017-10-19 안선희 Appareil de beauté portatif à base de plasma
CN108771767A (zh) 2018-08-24 2018-11-09 深圳市浪尖开物科技有限公司 衣柜净化器
DE102018201314A1 (de) 2018-01-29 2019-08-01 Siemens Healthcare Gmbh Verfahren zur Normalisierung von Magnetresonanzbildern
US20200038673A1 (en) * 2018-07-31 2020-02-06 L'oreal Cold plasma generating devices, systems, and methods
DE102018213143A1 (de) 2018-08-06 2020-02-06 Hyve Innovation Design Gmbh Aktivierungsvorrichtung und Aktivierungsverfahren einer Plasmaquelle zur Oberflächenbehandlung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012025079B4 (de) 2012-08-31 2016-09-08 NorthCo Ventures GmbH & Co. KG Vorrichtung und Verfahren zur Behandlung von biologischem Gewebe mit einem Niederdruckplasma
DE102013109887A1 (de) 2013-09-10 2015-03-12 Reinhausen Plasma Gmbh Handgerät und Verfahren zur Plasmabehandlung
DE102017105430A1 (de) 2017-03-14 2018-09-20 Epcos Ag Vorrichtung zur Erzeugung eines nichtthermischen Atmosphärendruck-Plasmas und Wirkraum
PL3569171T3 (pl) 2018-05-14 2024-06-10 Erbe Elektromedizin Gmbh Urządzenie i sposób określania parametrów roboczych do generowania plazmy w środowisku wodnym
DE102018213144A1 (de) 2018-08-06 2020-02-06 Hyve Innovation Design Gmbh Nutzerführungsvorrichtung und Nutzerführungsverfahren einer Plasmaquelle zur Oberflächenbehandlung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006009481U1 (de) * 2006-06-17 2006-10-26 Naumann, Stefan, Langley Vorrichtung zur Behandlung von Oberflächen des menschlichen Körpers
US20140207053A1 (en) * 2011-05-05 2014-07-24 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. Device and method for the plasma treatment of surfaces and use of a device
WO2017179819A1 (fr) * 2016-04-15 2017-10-19 안선희 Appareil de beauté portatif à base de plasma
CN205814739U (zh) 2016-05-20 2016-12-21 金科伟业（中国）有限公司 一种便携式灭菌消毒机
DE102018201314A1 (de) 2018-01-29 2019-08-01 Siemens Healthcare Gmbh Verfahren zur Normalisierung von Magnetresonanzbildern
US20200038673A1 (en) * 2018-07-31 2020-02-06 L'oreal Cold plasma generating devices, systems, and methods
DE102018213143A1 (de) 2018-08-06 2020-02-06 Hyve Innovation Design Gmbh Aktivierungsvorrichtung und Aktivierungsverfahren einer Plasmaquelle zur Oberflächenbehandlung
CN108771767A (zh) 2018-08-24 2018-11-09 深圳市浪尖开物科技有限公司 衣柜净化器

Also Published As

Publication number Publication date
DE102020215103A1 (de) 2022-06-02

Similar Documents

Publication Publication Date Title
EP2704654B1 (fr) Dispositif de traitement der surfaces au plasma
DE10007523C2 (de) Verfahren zur Luftbehandlung mit Ionen sowie Vorrichtung zur Durchführung des Verfahrens
EP3534983B1 (fr) Appareil médical
DE19901589C1 (de) Bestrahlungsvorrichtung, insbesondere UV-Tischlampe, zur Verfestigung von lichtaushärtendem Gel im Zuge einer Fingernagelbehandlung
DE69920229T2 (de) Vorrichtung zur behandlung der meniere krankheit oder vergleichbaren zuständen
WO2015070832A1 (fr) Appareil de traitement d'une surface corporelle d'un être vivant
DE102007030915A1 (de) Vorrichtung zur Behandlung von Oberflächen mit einem mittels einer Elektrode über ein Feststoff-Dielektrikum durch eine dielektrische behinderte Gasentladung erzeugten Plasma
DE102012210275B4 (de) Haartrockner
WO2013076102A1 (fr) Procédé et dispositif de production d'un plasma non thermique ayant une concentration en ozone préalablement définie
DE102008045830A1 (de) Verfahren zur Behandlung eines lebende Zellen enthaltenden biologischen Materials
DE102020206222A1 (de) Plasmavorrichtung
EP4009749A1 (fr) Procédé de commande d'une source de plasma d'un appareil guidé à la main et appareil guidé à la main
DE102012003557B4 (de) Einrichtung und Verfahren zur hygienischen Aufbereitung von Gegenständen
DE102020215102A1 (de) Verfahren zum Ansteuern einer Plasmaquelle eines Geräts und Gerät
EP4231885B1 (fr) Appareil à écoulement
DE102020213581A1 (de) Verfahren
DE102020215106A1 (de) Plasma-Vorrichtung
DE1917056A1 (de) Steuersystem fuer elektrisch betaetigte kuenstliche Glieder
WO2016155973A1 (fr) Dispositif chirurgical au plasma ainsi que procédé pour faire fonctionner un tel dispositif
EP1922950A1 (fr) Appareil à tunnel destiné au durcissement de vernis à ongles
EP4256908A2 (fr) Dispositif de traitement d'un objet par plasma et procédé de fonctionnement
DE102020215105A1 (de) Gerät zur Behandlung eines Gegenstands mit Plasma
EP4009748A1 (fr) Boîtier pour un appareil guidé à la main pourvu de source plasma
DE102018133356A1 (de) Druckwellengerät und Verfahren zur Behandlung eines menschlichen oder tierischen Körpers
DE19531900C2 (de) Verfahren zum Reduzieren der Population von Hausstaubmilben

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221208

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR