EP4009748A1 - Boîtier pour un appareil guidé à la main pourvu de source plasma - Google Patents

Boîtier pour un appareil guidé à la main pourvu de source plasma Download PDF

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Publication number
EP4009748A1
EP4009748A1 EP21206451.3A EP21206451A EP4009748A1 EP 4009748 A1 EP4009748 A1 EP 4009748A1 EP 21206451 A EP21206451 A EP 21206451A EP 4009748 A1 EP4009748 A1 EP 4009748A1
Authority
EP
European Patent Office
Prior art keywords
housing
section
cross
curvature
longitudinal direction
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
EP21206451.3A
Other languages
German (de)
English (en)
Inventor
Stefan Hassfurter
Frank Schnitzer
Kristina Daniel
Katja GNIELKA
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 EP4009748A1 publication Critical patent/EP4009748A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L25/00—Domestic cleaning devices not provided for in other groups of this subclass 
    • A47L25/08—Pads or the like for cleaning clothes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/405—Machines using UV-lamps, IR-lamps, ultrasound or plasma cleaning
    • 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. by ultrasonic waves, corona discharge, irradiation, electric currents or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Sonic or ultrasonic waves; Corona discharge
    • D06M10/025—Corona discharge or low temperature plasma
    • 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

Definitions

  • the invention relates to a housing for a handheld device with a plasma source and a handheld device with such a housing, which can be used in particular for treating a textile object.
  • Plasmas are known to have odor inactivating and antimicrobial properties.
  • the causes of the antibacterial effect of a plasma lie in heat, dehydration, shear stress, UV radiation, free radicals and charges.
  • low-pressure plasmas which are also called cold plasmas
  • the heat plays a subordinate role, since these plasmas are operated at room temperature.
  • reactive particles are formed, such as various oxygen or nitrogen species, which have a sufficiently long lifetime to damage organic compounds in the event of indirect exposure. These particles include, but are not limited to, atomic oxygen, superoxide radicals, ozone, hydroxyl radicals, nitric oxide, and nitrogen dioxide. These particles show a destructive effect on a wide variety of odor components as well as cell components.
  • odor components which usually consist of carbon compounds, as well as the cell walls of bacteria, germs, viruses, fungi or other comparable microorganisms are directly exposed 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 that can even exceed the tensile strength and destroy the odor molecules or the cell wall. However, not only mechanical tension due to the charge can destroy the cell walls, but also the disturbance of the charge balance of the odor molecules or the cell wall through various other electrostatic interactions and electrolysis, e.g. B. by changing the permeability of the cell walls. A mechanism for inactivating microorganisms also results from the very high-energy ions. The plasma can be generated by means of a high frequency will.
  • non-thermal plasma also known as cold plasma
  • cold plasma can be used specifically to eliminate odors and certain hydrocarbons.
  • non-thermal plasmas are used in medical technology, for example in the treatment of poorly or non-healing wounds with the help of a so-called plasma pen, in which the antimicrobial effect of "cold plasma” is used.
  • Cold plasmas are therefore particularly well suited for inactivating odors on textile fabrics or on household surfaces or the like in order to achieve odor activation.
  • handheld devices It is known to integrate plasma sources of this type for generating said plasma, in particular cold plasma, in a so-called handheld device. This means that the device is held in the user's hand during use - i.e. during the treatment of surfaces with plasma. This makes it possible to guide the plasma source along the surface to be treated.
  • handheld devices have a compact design, so they can be implemented in a portable manner and can therefore be used particularly flexibly.
  • the implementation of the housing, in which said plasma source is also arranged is of considerable importance; because the handling of the handheld device should be as comfortable and easy as possible for the user. Since the plasma source is to be integrated into the device in such a way that the plasma can be emitted to the outside, it is of great importance that the user's fingers do not come into contact with the plasma source when they are gripping the housing.
  • the housing should also be realized in such a way that the user's fingers do not come into contact with the object to be treated or its surface, in order to keep the frictional resistance as low as possible when moving the device over the surface to be treated.
  • the basic idea of the invention is therefore to design the geometric shape of the housing in such a way that the user grips it with his hand due to the haptics resulting from the geometry as is desired with regard to the arrangement of the plasma source arranged on the housing.
  • the geometric shape of the device according to the invention is designed in such a way that the user grasps the housing intuitively in such a way that he just does not cover the plasma source provided on the housing with his hand, in particular with one or more of his fingers.
  • the housing in at least two parts with an upper housing part and a lower housing part, which together delimit a housing interior.
  • the lower housing part is designed in such a way that it encloses a housing opening in which said plasma source can be arranged at least partially.
  • the arrangement of the plasma source in the housing opening is implemented in such a way that the plasma source can emit the generated plasma to the outside, i.e. away from the housing interior, so that it can be used to treat the surface over which the hand-held device with the housing and the plasma source is guided , is available.
  • said three housing parts extend along a common longitudinal direction, with the gradient angles on the two flanks of the housing upper part being smaller than the two gradient angles on the two flanks of the lower part in a cross section perpendicular to the longitudinal direction.
  • the user intuitively grasps the upper part of the housing with his hand, but not the lower part of the housing with the housing opening in which the plasma source of the device is arranged with the housing.
  • the design of the cross-section of the housing with different pitch angles means that the user intuitively does not hold the housing incorrectly - i.e. rotated 180° around its longitudinal axis - and thus blocks the plasma source arranged in the housing opening with the palm of the hand.
  • a housing according to the invention for a handheld device with a plasma source comprises a housing upper part that extends along a longitudinal direction.
  • the housing also includes a housing base extending along the longitudinal direction.
  • the housing upper part and the housing lower part can be attached to one another at their housing edges.
  • the housing upper part and the housing lower part are preferably shell-like, ie designed as a housing upper shell or housing lower shell.
  • the lower housing part encloses a housing opening and preferably completes the upper housing part to form the housing, which surrounds a housing interior.
  • the housing is therefore preferably at least in two parts, particularly preferably exactly in two parts—then consisting of a housing upper part and a housing lower part.
  • the upper housing part comprises a middle section which, at its two opposite ends, merges into a first and second, preferably curved, outer section.
  • the lower housing part has a first end facing away from the housing opening and a second end facing away from the housing opening, a reference line being defined in the cross section by a connecting straight line between the two ends.
  • the two upper pitch angles on the two flanks of the housing top part i.e. between the first and second outer section and the reference line
  • the two upper pitch angles are each between 3° and 15°, with the values of the two upper pitch angles particularly preferably being able to be identical.
  • the two lower pitch angles in this embodiment are between 25° and 45°, in which case the values of the two lower pitch angles can particularly preferably be identical.
  • an overall length of the housing measured along the longitudinal direction is at least twice an overall width of the housing measured transversely to the longitudinal direction—along a transverse direction.
  • the reference line extends along the transverse direction, which runs perpendicular to the longitudinal direction.
  • a section width of the central section measured along the transverse direction is between 1/10 and 1/3 of a length of the reference line measured along the transverse direction, which corresponds to an overall width of the Corresponds housing along the transverse direction.
  • the two lower housing parts are each curved in cross section and both have a radius of curvature that is smaller than a respective radius of curvature of the first and second outer section. In this way it is avoided that the fingertips of the hand gripping the housing can touch and in particular cover the plasma source.
  • the cross section of the first and the second outer section of the upper part of the housing is curved towards the inner space of the housing.
  • the central section is designed without curvature, ie in a straight line. Said measures cause the upper part of the housing to be optimally adapted to the palm of the hand gripping the upper part of the housing.
  • the first outer section transitions by means of a first transition away from the middle section into a first end section, which is arranged at a first angle to the first outer section.
  • the second outer section transitions away from the middle section into a second end section by means of a second transition, which end section is arranged at a second angle to the second outer section.
  • the first transition particularly preferably has a first radius of curvature in the cross section, which is between 0.5 mm and 5 mm.
  • the second transition can have a second radius of curvature that is between 0.5 mm and 5 mm.
  • the radii of curvature of the lower housing part in the cross section are each larger than the first radius of curvature and also larger than the second radius of curvature of the first or second outer section of the upper housing part.
  • the upper housing part can expediently be designed to be axially symmetrical with respect to an axis of symmetry—preferably extending perpendicularly to the middle section. In this way, the upper housing part can also be connected to the lower housing part rotated by 180° with respect to the latter. This simplifies the assembly of the housing.
  • the upper part of the housing can be embodied in the manner of a shell, ie as an upper shell of the housing.
  • the lower housing part can also be designed in the manner of a shell, ie as a lower housing shell. In this way, a housing interior with a particularly large housing volume can be implemented.
  • the lower housing part is designed to be axially symmetrical in cross section with respect to an axis of symmetry that preferably runs perpendicularly to the middle section.
  • the housing is designed in two parts and thus consists of the housing upper part and the housing lower part. This variant proves to be particularly cost-effective.
  • the two upper pitch angles can have the same angular value.
  • the two lower pitch angles can have the same angular value.
  • the associated symmetrical structure of the housing results in improved haptics.
  • the middle section is arranged essentially in the middle between the two outer sections in the cross section.
  • the associated symmetrical structure of the housing results in improved haptics.
  • the invention also relates to a hand-operated device for treating a textile surface by means of a—particularly cold—plasma.
  • the handheld device includes a housing according to the invention presented above, so that the advantages of the housing according to the invention explained above are also transferred to the device according to the invention.
  • a plasma source for generating the plasma and for releasing the generated plasma to the external environment of the device is arranged in the housing interior of the housing and in the housing opening of the device according to the invention.
  • figure 1 1 illustrates a perspective view of an example of a hand-held device 10 according to the invention with a housing 1 according to the invention and a plasma source 11 for generating cold plasma and for delivering the generated plasma to the external environment 13 of the housing 1.
  • the housing 1 comprises a housing upper part 2 extending along a longitudinal direction L. Furthermore, the housing 1 comprises a housing lower part 3 extending along the longitudinal direction L.
  • the housing 1 is designed in two parts and consists of the housing upper part 2 and the housing lower part 3.
  • the lower housing part 3 encloses a housing opening 4 .
  • the plasma source 11 is arranged in the housing opening 4 so that the plasma generated by it can be emitted to the external environment 13 . Appropriately, the plasma source 11 closes as in figure 1 shown the housing opening 4.
  • the lower housing part 3 completes the upper housing part 2 in the example of the housing 1 which surrounds a housing interior 5 .
  • the housing 1 is in two parts and - because of the housing opening 4 - open.
  • An overall length GL of the housing 1 measured along the longitudinal direction L is at least twice an overall width GB of the housing 1 measured transversely to the longitudinal direction L along a transverse direction Q.
  • the figure 2 shows the housing 1 of figure 1 in a cross section perpendicular to the longitudinal direction L.
  • the upper housing part 2 comprises a middle section 6, which merges at its two ends 6a, 6b into a first and second, respectively curved, outer section 7a, 7b.
  • the first goes Outer section 7a moves away from the middle section 6 by means of a first transition 8a into a first end section 9a, which is arranged at a first angle ⁇ a to the first outer section 7a.
  • the second outer section 7b transitions away from the middle section 6 by means of a second transition 8b into a second end section 9b, which is arranged at a second angle ⁇ b to the second outer section 7b.
  • the two angles ⁇ a , ⁇ b are preferably obtuse angles, as shown.
  • the values of the two angles ⁇ a , ⁇ b are particularly preferably identical.
  • the first transition 8a has a first radius of curvature KÜ1, which is between 0.5 mm and 5 mm.
  • the second transition 8b has a second radius of curvature KÜ2 in the cross section, which is also between 0.5 mm and 5 mm.
  • the two values of KÜ1 and K2 can particularly preferably be identical.
  • the lower housing part 3 is also curved.
  • the radii of curvature KU1, KU2 of the lower housing part 3 can each be larger than a first and second radius of curvature KA1, KA2 of the first and second outer section 7a, 7b of the upper housing part 2.
  • the lower housing part 3 has a first end 12a facing away from the housing opening 4 and a second end 12b facing away from the housing opening 4, with a reference line in the cross section through a connecting straight line V between the two ends 12a, 12b RL is defined.
  • the reference line RL extends along the transverse direction Q.
  • a section width AB of the middle section 6 measured along the transverse direction Q is between 1/10 and 1/3 of an extension of the reference line RL measured along the transverse direction Q, which is the overall width GB of the housing 1 corresponds.
  • the section width AB preferably has a value between 5 mm and 25 mm, particularly preferably between 7 mm and 20 mm.
  • the two upper pitch angles ⁇ o between the first and second outer section 7a, 7b and the reference line RL is smaller than the two lower pitch angles ⁇ u between the lower housing part 3 and the reference line RL.
  • the two outer sections 7a, 7b in the cross section shown are curved, as shown in the example scenario, then to clearly define the two upper gradient angles ⁇ o, this can be between the straight reference line RL and the first end 6a of the middle section 6 or the second end 6b of the Center section 6 to be measured.
  • the two lower gradient angles ⁇ u can be measured between the reference line RL and an end 15a of the lower housing part 3 facing the housing opening 4 or an end 15b of the lower housing part 3 facing the housing opening 4 .
  • the two upper pitch angles ⁇ o are between 3° and 15°.
  • the two lower pitch angles ⁇ u are each between 25° and 45°.
  • the two upper pitch angles ⁇ o expediently have the same value.
  • the two lower pitch angles ⁇ u can have the same value.
  • first and the second outer section 7a, 7b of the housing upper part 2 are each formed curved towards the housing interior 5.
  • the middle section 6 is preferably designed without curvature in said cross section, ie it extends in a straight line between the two outer sections 7a, 7b.
  • the lower housing part 3 has two radii of curvature KU1 and KU2, which are each smaller than the respective radius of curvature KA1, KA2 of the first and second outer section 7a, 7b. It is therefore KU1 ⁇ KA1 and KU2 ⁇ KA2.
  • KU2 ⁇ KA1 and KU1 ⁇ KA2 can also apply.
  • the upper housing part 2 can be designed to be axially symmetrical with respect to an axis of symmetry S extending perpendicularly to the middle section 6 .
  • the lower housing part 3 can be designed to be axially symmetrical with respect to an axis of symmetry S extending perpendicularly to the middle section 6 . That
  • the housing top part 2 and the housing bottom part 3 are each shell-like, ie as a housing top shell or housing bottom shell.
  • the figure 3 is an expanded representation of the figure 2 , which in this case means that they use the in figure 2 shown cross-section of the housing 1 perpendicular to the longitudinal direction L and additionally shows a hand 16 of a user of the hand-held device 10 gripping the housing 1 .
  • the figure 3 thus shows the intended position of use of the handheld device 10 or its housing 1 in the hand 16.
  • the figure 3 shows that the hand 16 completely encompasses the upper housing part 2 and thus rests almost completely on the surface of the upper housing part 2 .
  • the fingertips 17 of the hand 16 rest on the lower housing part 3 .
  • the housing opening 4 with the plasma source 11 is not covered by the hand 16 .
  • the user of the device 1 grips and holds the housing 1 to use the device 10 intuitively - due to the basis of figure 1 and 2 explained haptics of the housing 1 - as in figure 3 shown.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Textile Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Casings For Electric Apparatus (AREA)
  • Prostheses (AREA)
EP21206451.3A 2020-12-01 2021-11-04 Boîtier pour un appareil guidé à la main pourvu de source plasma Pending EP4009748A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020215095.8A DE102020215095A1 (de) 2020-12-01 2020-12-01 Gehäuse für ein handführbares Gerät mit Plasmaquelle

Publications (1)

Publication Number Publication Date
EP4009748A1 true EP4009748A1 (fr) 2022-06-08

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ID=78528712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21206451.3A Pending EP4009748A1 (fr) 2020-12-01 2021-11-04 Boîtier pour un appareil guidé à la main pourvu de source plasma

Country Status (2)

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EP (1) EP4009748A1 (fr)
DE (1) DE102020215095A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010050673A1 (en) * 2000-02-14 2001-12-13 Davenport Anthony G. Ergonomic fingertip computer mouse
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
EP3346808A1 (fr) * 2017-01-06 2018-07-11 INP Greifswald Leibniz-institut Fuer Plasmaforschung Und Technologie E. V. Dispositif planaire et procédé de génération de plasma ou d'espèces réactives
DE102018209735A1 (de) * 2018-06-15 2019-12-19 Terraplasma Gmbh Plasmaeinrichtung zur Behandlung von Körperoberflächen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010050673A1 (en) * 2000-02-14 2001-12-13 Davenport Anthony G. Ergonomic fingertip computer mouse
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
EP3346808A1 (fr) * 2017-01-06 2018-07-11 INP Greifswald Leibniz-institut Fuer Plasmaforschung Und Technologie E. V. Dispositif planaire et procédé de génération de plasma ou d'espèces réactives
DE102018209735A1 (de) * 2018-06-15 2019-12-19 Terraplasma Gmbh Plasmaeinrichtung zur Behandlung von Körperoberflächen

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Publication number Publication date
DE102020215095A1 (de) 2022-06-02

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