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WO2025223866A1 - Dispositif de nettoyage pourvu d'un générateur d'ozone - Google Patents

Dispositif de nettoyage pourvu d'un générateur d'ozone

Info

Publication number
WO2025223866A1
WO2025223866A1 PCT/EP2025/059896 EP2025059896W WO2025223866A1 WO 2025223866 A1 WO2025223866 A1 WO 2025223866A1 EP 2025059896 W EP2025059896 W EP 2025059896W WO 2025223866 A1 WO2025223866 A1 WO 2025223866A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning device
cleaning
oxidizing agent
cleaning fluid
nozzle
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
PCT/EP2025/059896
Other languages
German (de)
English (en)
Inventor
Norbert Weis
Uwe Dingert
Christian Stenglein
Thorsten Matthée
Dirk Brackmeyer
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of WO2025223866A1 publication Critical patent/WO2025223866A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A61L2/183—Ozone dissolved in a liquid

Definitions

  • the invention relates to a cleaning device for damp or wet cleaning of a surface to be cleaned, comprising a supply unit for applying a water-containing cleaning fluid to the surface and an ozone generator for introducing at least one oxidizing agent into the cleaning fluid.
  • Various hand-operated cleaning devices for wet cleaning are known for cleaning surfaces, such as mops, steam cleaners, window cleaners, etc. These cleaning devices often have a cleaning pad that can be moved across the surface to be cleaned. It is also known to equip these devices with tanks for storing cleaning fluid.
  • the cleaning fluid can be water or water mixed with cleaning agents.
  • German patent DE 10 2020 100 914 A1 discloses the use of an ozone generator in a cleaning device.
  • the ozone generator releases ozone into the cleaning fluid, which allows for additional disinfection and thus contributes to better cleaning.
  • the problem is that ozone is... It is a toxic oxidizing agent that can cause irritation of the respiratory tract and eyes in humans, as well as promote respiratory diseases.
  • a disadvantage of these cleaning devices is that the operator could come into skin contact with the ozone or inhale ozone escaping into the ambient air.
  • the object of the present invention is to create a cleaning device for the damp or wet cleaning of a surface to be cleaned with cleaning fluid containing an oxidizing agent, in which health impairments of the operator caused by the oxidizing agent are reliably avoided.
  • the invention it was found to be advantageous to provide a device for limiting the content of the oxidizing agent in the cleaning fluid and/or on the surface and/or in the ambient air, thus protecting the operator of the cleaning device.
  • the cleaning device according to the invention is used for damp or wet cleaning of a surface to be cleaned, with a supply unit for the direct or indirect application of a water-based cleaning fluid to the surface.
  • the cleaning fluid can, in particular, be tap water.
  • the cleaning device has, in particular, a A controllable ozone generator for introducing at least one oxidizing agent into the cleaning fluid.
  • the oxidizing agent can essentially be ozone O3, which, as so-called "active oxygen,” has a disinfecting effect.
  • the cleaning device is equipped with a mechanism for limiting the concentration of the oxidizing agent in the cleaning fluid and/or on the surface and/or in the ambient air. Limiting the concentration of the oxidizing agent in the cleaning fluid ensures maximum saturation of the cleaning fluid with oxidizing agent. This limitation mechanism protects the operator from health risks associated with the oxidizing agent.
  • the cleaning device incorporates a measuring device for determining the oxidizing agent content in the cleaning fluid as a limiting mechanism.
  • This measuring device can be an ozone meter with an ozone sensor.
  • the ozone sensor can be integrated into or connected to a fluid line between the ozone generator and the dispensing unit. It appears particularly advantageous to regulate the ozone generator based on the measurement result.
  • a pump could be integrated into the control loop to influence the dispensed quantity of cleaning fluid.
  • the supply unit has, as a device for restriction, at least one extraction arrangement for extracting ambient air, and is in particular equipped with a filter for removing
  • the device is equipped with an oxidizing agent from the ambient air. This prevents the operator from inhaling air enriched with oxidizing agent.
  • the supply unit as a device for restriction, has a nozzle arrangement with at least one nozzle opening for spraying cleaning fluid.
  • Suitable nozzles include, for example, flat jet nozzles with a convex or uniform spray pattern.
  • the nozzle arrangement ensures that the cleaning fluid containing the oxidizing agent is precisely delivered where needed, allowing the oxidizing agent to take effect.
  • the cleaning fluid can be sprayed directly onto the surface to be cleaned and/or onto a cleaning element, such as a wiping pad, that can be brought into contact with the surface.
  • the nozzle arrangement can be positioned such that at least one nozzle opening is a maximum of 20 cm away from the surface to be cleaned when the cleaning device is in its working position.
  • the dispensing unit has a chamber that is open towards the surface to be cleaned, but otherwise essentially closed, as a means of restriction. This prevents the cleaning fluid from mixing with the ambient air in the area of the dispensing unit.
  • the cleaning device's supply unit has a wiping pad.
  • This is advantageously provided with an adsorbent for adsorbing the oxidizing agent.
  • the adsorbent can be incorporated into a surrounding edge or into bristles or fringes on the edge of the wiping pad.
  • the adsorbent can be incorporated into the wiper pad over a wide area, i.e., the adsorbent is distributed over the wiping surface of the wiper pad.
  • the adsorbent may consist of activated carbon and/or zeolites and/or aluminum oxides.
  • Alternative adsorption materials for the ozonolysis process include rubber materials.
  • the ozonolysis process describes the reaction of ozone with vulcanized rubber, resulting in electrophilic addition to the rubber's double bonds. This leads to the formation of an unstable primary ozonide, which further decomposes into carbonyl compounds and carbonyl oxide. These decomposition products can then react to form secondary ozonides, which are harmless to health.
  • Potentially advantageous rubber materials include EPDM rubber (a terpolymer elastomer and therefore a synthetic rubber) or latex. From an ecological perspective, it is preferable to source the rubber materials from waste products of other manufacturing processes. For sufficient ozonolysis, the rubber materials must have a large surface area available for the desired reaction.
  • the rubber material is incorporated into the edge of the wiper pad or the wiper pad itself, it can be in the form of granules.
  • the rubber material could have a three-dimensional structure with an optimized surface area, for example, by incorporating grooves, bumps, waves, or similar features.
  • the supply unit has at least one wiping pad and a nozzle arrangement with at least one A nozzle with a nozzle opening for spraying cleaning fluid.
  • the wiping pad has at least one recess, cutout, or hole as an area without a wiping surface.
  • the at least one nozzle of the nozzle assembly is adjusted so that cleaning fluid can be sprayed through the recess. This allows the cleaning fluid to be sprayed directly onto the surface to be cleaned and then spread with the wiping pad. It also appears advantageous to provide an adsorbent in the edge area of the wiping pad—as described above—which can neutralize excess oxidizing agent.
  • the cleaning device features a sensor for detecting the distance to the surface being cleaned.
  • the sensor is connected to a control unit via data transmission, which controls the ozone generator based on the sensor's measurement.
  • the ozone generator is switched off. This prevents the oxidizing agent from being released primarily into the ambient air instead of acting on the surface being cleaned, as intended.
  • Fig. 1 shows a first embodiment of a cleaning device.
  • Fig. 2 shows a second embodiment of a cleaning device.
  • Fig. 3 shows a third embodiment of a cleaning device.
  • Fig. 4 shows a fourth embodiment of a cleaning device.
  • Figure 1 shows a first embodiment of a cleaning device 100 for
  • the cleaning device 100 has a dispensing unit 5 for applying the cleaning fluid 6 to the surface 1000.
  • the dispensing unit 5 can, for example, generate a spray jet of cleaning fluid 6.
  • the dispensing unit 5 is connected by means of a line 2 to a tank 1 in which the water-based cleaning fluid 6 is stored.
  • a pump 3 and a controllable ozone generator 4 for introducing at least one oxidizing agent into the cleaning fluid 6 are arranged between the tank 1 and the dispensing unit 5.
  • the cleaning device 100 is equipped with a device 10 for limiting ozone.
  • the device 10 is equipped with a device to control the concentration of the oxidizing agent in the cleaning fluid 6 and/or on the surface 1000 and/or in the ambient air 2000.
  • Various configurations of the device 10 for limiting the concentration of the oxidizing agent are conceivable.
  • the device 10 for limiting the concentration of the oxidizing agent is designed as a measuring device 11 for determining the concentration of oxidizing agent in the cleaning fluid 6.
  • the measuring device 11 is integrated into or connected to the line 2.
  • the measuring device 11 can be connected to a control unit 8 via data transmission (not shown here; see Figure 4 for an exemplary embodiment).
  • the ozone generator 4 and/or the pump 3 can also be connected to the control unit 8 via data transmission, allowing their operation to be controlled based on the measurement result of the measuring device 11. If the concentration of oxidizing agent in the cleaning fluid rises above a limit value, the ozone generator 4 can be adjusted accordingly so that the concentration of oxidizing agent decreases again.
  • Figure 2 shows a second embodiment of a cleaning device 100 for damp or wet cleaning. The design is similar to that of the cleaning device 100 according to Figure 1.
  • the device 10 for limiting the oxidizing agent concentration has a different configuration: in the area of the supply unit 5, an extraction arrangement 12 for extracting ambient air 2000 mL is provided. As indicated by the arrows, the ambient air 2000 mL can be drawn in.
  • the extraction arrangement 12 can have a filter (not explicitly shown) for removing oxidizing agent from the extracted ambient air 2000 mL, so that after the air has been cleaned by the filter, it can be released again. In this way, the concentration of oxidizing agent in the ambient air 2000 mL can be limited.
  • the purified air could, for example, be directed onto already cleaned surfaces and accelerate the drying of the cleaned surfaces there.
  • Figure 3 shows a third embodiment of a cleaning device 100 for
  • the device 10 for limiting the oxidizing agent content has a different design: it is designed as
  • Nozzle arrangement 13 for spraying cleaning fluid designed with at least one nozzle with a nozzle opening. This is part of the supply unit 5.
  • a flat jet nozzle with a convex or uniform distribution can be used.
  • the nozzle arrangement 13 is positioned such that at least one nozzle opening is at a distance a of no more than 20 cm from the surface to be cleaned.
  • the supply unit 5 may optionally have a chamber 14, open towards the surface to be cleaned but otherwise essentially closed, as a further means of limiting 10. This chamber 14 is indicated by dashed lines. Such a chamber 14 prevents cleaning fluid 6 from escaping upwards or laterally. This limits the concentration of oxidizing agent in the ambient air 2000.
  • Figure 4 shows a fourth embodiment of a cleaning device 100 for
  • the device 10 for limiting the concentration of the oxidizing agent has a different design: a sensor 17 is provided in the area of the supply unit 5 to determine the distance a between the supply unit 5 and the surface 1000 to be cleaned.
  • the sensor 17 is connected to a control unit 8 via data transmission.
  • the ozone generator 4 and the pump 3 are also connected to the control unit 8 via data transmission, and their operation may depend on the measurement result of the sensor 17. This ensures that cleaning fluid 6 with oxidizing agent is only supplied by the supply unit 5 when a maximum distance a is not exceeded. If the distance a is too large, there is a risk that the cleaning agent 6 will not substantially wet the surface 1000 to be cleaned, but will instead be released into the environment.
  • Figures 5a to 5c show different variants of wiper pads 7, each of which has a device 10 for limiting the content of the oxidizing agent.
  • an adsorbent is incorporated into the edge 15 of the wiping pad 7.
  • an adsorbent 16 is incorporated into the wiping pad 7 over a wide area.
  • the wiping pad 7 in Fig. 5c has a central recess 7.1.
  • the cleaning fluid 6 can be directed from the supply unit 5, for example by a spray jet, into the area of the recess 7.1.
  • the concentrations of the oxidizing agent can also be combined.
  • Cleaning fluid e.g. spray jet

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne un dispositif de nettoyage (100) pour le nettoyage à l'eau ou humide d'une surface (1000) à nettoyer, comprenant une unité d'alimentation (5) destinée à appliquer un fluide de nettoyage (6) contenant de l'eau à la surface (1000) et un générateur d'ozone (4), en particulier un générateur d'ozone régulable, destiné à introduire au moins un agent oxydant dans le fluide de nettoyage (6). Selon l'invention, une unité (10) destinée à limiter la teneur en agent oxydant dans le fluide de nettoyage (6) et/ou sur la surface (1000) et/ou dans l'air ambiant (2000) est disposée dans le dispositif de nettoyage (100), afin de protéger ainsi l'opérateur du dispositif de nettoyage.
PCT/EP2025/059896 2024-04-22 2025-04-10 Dispositif de nettoyage pourvu d'un générateur d'ozone Pending WO2025223866A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102024111130.5 2024-04-22
DE102024111130.5A DE102024111130A1 (de) 2024-04-22 2024-04-22 Reinigungsgerät mit Ozongenerator

Publications (1)

Publication Number Publication Date
WO2025223866A1 true WO2025223866A1 (fr) 2025-10-30

Family

ID=95450247

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/059896 Pending WO2025223866A1 (fr) 2024-04-22 2025-04-10 Dispositif de nettoyage pourvu d'un générateur d'ozone

Country Status (2)

Country Link
DE (1) DE102024111130A1 (fr)
WO (1) WO2025223866A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033402A2 (fr) * 2001-10-15 2003-04-24 Pure O3 Tech, Inc. Systeme de production et de distribution d'ozone dissous
DE102020100914A1 (de) 2020-01-16 2021-07-22 Stroakmont & Atton Trading GmbH Reinigungsgerät, Reinigungsverfahren und Verwendung eines Ozongenerators zur Entkeimung
EP3903657B1 (fr) * 2020-04-28 2022-11-09 Adiatek S.r.l. Appareil à nettoyer et à sécher les sols

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033402A2 (fr) * 2001-10-15 2003-04-24 Pure O3 Tech, Inc. Systeme de production et de distribution d'ozone dissous
DE102020100914A1 (de) 2020-01-16 2021-07-22 Stroakmont & Atton Trading GmbH Reinigungsgerät, Reinigungsverfahren und Verwendung eines Ozongenerators zur Entkeimung
EP3903657B1 (fr) * 2020-04-28 2022-11-09 Adiatek S.r.l. Appareil à nettoyer et à sécher les sols

Also Published As

Publication number Publication date
DE102024111130A1 (de) 2025-10-23

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