EP1989983B1 - Buse d'aspiration avec unité d'accumulateur pour un aspirateur - Google Patents

Buse d'aspiration avec unité d'accumulateur pour un aspirateur Download PDF

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Publication number
EP1989983B1
EP1989983B1 EP20070009142 EP07009142A EP1989983B1 EP 1989983 B1 EP1989983 B1 EP 1989983B1 EP 20070009142 EP20070009142 EP 20070009142 EP 07009142 A EP07009142 A EP 07009142A EP 1989983 B1 EP1989983 B1 EP 1989983B1
Authority
EP
European Patent Office
Prior art keywords
suction nozzle
accumulator
lithium
housing
suction
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.)
Ceased
Application number
EP20070009142
Other languages
German (de)
English (en)
Other versions
EP1989983A1 (fr
Inventor
Dieter Kaffenberger
Horst Dilger
Klaus-Dieter Riehl
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.)
Wessel Werk GmbH
Original Assignee
Wessel Werk 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 Wessel Werk GmbH filed Critical Wessel Werk GmbH
Priority to DE202007008998U priority Critical patent/DE202007008998U1/de
Priority to EP20070009142 priority patent/EP1989983B1/fr
Priority to CN2008102103967A priority patent/CN101336817B/zh
Publication of EP1989983A1 publication Critical patent/EP1989983A1/fr
Application granted granted Critical
Publication of EP1989983B1 publication Critical patent/EP1989983B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor

Definitions

  • the invention relates to a suction nozzle for a vacuum cleaner with a housing, a bottom side arranged in the housing suction mouth, a rotatably mounted in the housing and driven by an electric motor cleaning roller and an accumulator unit for the power supply of the electric motor.
  • the suction nozzle can be connected via a rear connector to a suction pipe or a suction hose of a vacuum cleaner.
  • the cleaning of a floor covering takes place at the suction nozzle in a particularly effective manner by a combination of the suction air flowing through the suction nozzle and the movement of the cleaning roller. Since the suction nozzle for power supply is equipped with the accumulator unit, a connection to an external power source is not required during operation, which is why the suction nozzle can be flexibly used and handled.
  • Suction nozzles with the features described above are from the publications DE 39 00 577 A1 and DE 298 028 79 U1 and known in practice from different embodiments, cf. this too DE 203 08 760 U1 and EP 0 553 897 A2 ,
  • generic suction nozzles are equipped with a battery unit as a power supply with comparatively weak drive motors with an electrical power of 30 watts maximum due to the usual design criteria.
  • the suction nozzles of the suction air significantly contributes to the cleaning effect and only to a certain extent by the Cleaning roller is supported.
  • the air power at the suction nozzle typically significantly larger than the electric power of the electric motor.
  • the invention has the object to provide a suction nozzle with the features described above, which has improved cleaning properties and is easy to handle.
  • the object is achieved in that the electric motor has a rated power of more than 80 watts, and that the accumulator unit, based on their total volume, has an energy density of more than 200 watt hours per liter.
  • the invention is based on the finding that in the known generic suction nozzles, the synergy effects of the electrically driven cleaning roller on the one hand and the suction air flow on the other hand are not optimally utilized.
  • the fact that the rated power of the electric motor according to the invention is at least 80 watts, a very reliable and thorough cleaning is possible on different textile floor coverings.
  • the cleaning roller typically has helical brush strips which are arranged around the circumference. In addition or as an alternative, however, it is also possible to provide, for example, lamellae made of an elastic material.
  • both the penetration depth of the cleaning elements of the brush roller can be increased.
  • the power of the electric motor is within the scope of the invention between 80 and 150 watts. Due to the high energy density of the accumulator unit of more than 200 Wh / l in addition to the improvement of the cleaning effect and a compact design and good handling of the suction nozzle allows.
  • the energy capacity of the accumulator unit is greater than 40 Wh (watt-hour) is, wherein the energy capacity is more preferably between 50 Wh and 100 Wh.
  • the suction nozzle according to the invention is suitable for cleaning almost all commercial floor coverings, in particular on carpets and carpets, a good cleaning effect can be achieved. Only extremely long-pile carpets, the fibers of which can devour with the cleaning roller, are not suitable for cleaning with the suction nozzle according to the invention.
  • the electric motor and the energy capacity of the accumulator unit is preferably matched to one another such that, regardless of the type of floor covering to be cleaned with the suction nozzle, an operating period of at least 30 minutes is ensured with an accumulator charge.
  • the suction nozzle Due to a sufficiently long service life, an interruption to charge or replace the accumulator unit can be avoided in the typical use of the suction nozzle in the private living area.
  • an operating time of more than one hour is not needed, which is why the maximum to be reached with a battery charge operating time is typically between 30 minutes and one hour.
  • the total weight which is preferably less than 2.5 kg and particularly preferably less than 1.5 kg in the operational state of the suction nozzle, a uniform weight distribution should be aimed for in terms of good handleability.
  • the electric motor on the one hand and the accumulator unit on the other hand can be arranged on opposite sides of the housing.
  • the accumulator unit has differently shaped accumulators, which are arranged separately at spaced locations.
  • the accumulator unit can be fixed or movable on or in the housing without restriction.
  • the accumulator unit can for example be inserted into the housing or attached to an external holder.
  • a replaceable design allows a simple change of a defective or discharged battery unit by a ready-held, loaded spare unit, which also, if necessary, the operating time can be increased easily.
  • charging in an external charging station is possible.
  • Even with a replaceable embodiment of the accumulator unit it is preferably provided that charging is possible without separation from the suction nozzle even during a break in operation.
  • the housing or the accumulator unit has an easily accessible charging connection.
  • a holder can be provided for the suction nozzle as an accessory, which also serves as a charging station.
  • the electric motor is typically coupled to the cleaning roller via a transmission, such as a belt or gear assembly.
  • a transmission such as a belt or gear assembly.
  • a direct drive is conceivable even with a coaxial arrangement, wherein the electric motor is arranged at one end of the cleaning roller or integrated in the cleaning roller.
  • an electronic control for speed and / or torque control of the electric motor is provided.
  • the speed and / or torque control can be done taking into account the metrologically determined electrical current, the signals from sensors of the suction nozzle and / or taking into account manual inputs.
  • the accumulator unit is based on a lithium-ion system.
  • the accumulator unit is formed from at least one lithium ion accumulator, a lithium polymer accumulator, a lithium manganese dioxide accumulator or a lithium / lithium cobalt oxide accumulator.
  • the cell structure of the lithium-polymer batteries allows the production of thin film batteries, which is why lithium-polymer batteries can be manufactured in almost any and especially uneven forms.
  • Lithium-polymer batteries can fill in irregular spaces with optimum use of space.
  • Lithium manganese dioxide batteries are characterized by a particularly high level of operational reliability, so that special protection circuits are not absolutely necessary.
  • lithium-manganese dioxide batteries can be manufactured inexpensively and contain no heavy metals, so that they can be handled relatively easily in the disposal and a defect.
  • the accumulator unit can have an accumulator with an electrode whose surface is provided with a nanostructure, the surface being at least a factor of 5 in relation to a smooth surface , is preferably increased at least by a factor of 10.
  • the maximum charge and discharge current is essentially determined by the surface of the electrode. Due to the surface enlargement due to a nanostructuring, very large charge and discharge currents can be achieved even in the case of an accumulator with a large capacity and a correspondingly large amount of electrochemically active material become.
  • rapid charging may occur in a very short time interval of typically less than 10 minutes, preferably less than 5 minutes.
  • an increased discharge current can be provided for a short time.
  • this can be embodied, for example, as a lithium-nano-phosphate accumulator.
  • the accumulator unit is formed from at least one nickel-metal-hydride accumulator.
  • other types of accumulator are suitable, which can achieve the inventively provided energy density of more than 200 Wh / l.
  • the accumulator unit has an accumulator having thick-walled and thin-walled sections and / or a deviating from rod batteries outer contour.
  • the outer contour is adapted to the shape of the existing installation space in the housing.
  • the arrangement described allows an arrangement of the accumulators in an otherwise unused space, whereby the volume utilization is improved and the external dimensions of the suction nozzle can be reduced.
  • portable devices in the field of consumer electronics, which are equipped with lithium-ion batteries known that the use of a not exactly matched to the charging electronics spare battery destruction of the battery and the device itself may occur. In extreme cases, the accumulator can explode or inflame. By an irregular, non-standard shape of the accumulator unit and the associated receiving space, the Unauthorized replacement batteries are largely excluded.
  • an optimization of the suction nozzle can also take place from a fluidic point of view.
  • continuous transitions along the flow path of the suction air can be provided to reduce turbulence and friction.
  • the suction power can also be increased by the fact that the false air portion, which does not penetrate through the suction mouth, but by scribing and crevices of the housing, is minimized.
  • the false air portion which does not penetrate through the suction mouth, but by scribing and crevices of the housing, is minimized.
  • the false air portion which does not penetrate through the suction mouth, but by scribing and crevices of the housing, is minimized.
  • a fitting on the back of the suction nozzle is typically connected to the housing via a hinge connection.
  • the Saugluftweg can be bridged within the articulated connection of a flexible, airtight suction hose.
  • Fig. 1 shows a suction nozzle 1 according to the invention for a vacuum cleaner 2 with a housing 3, a bottom side disposed in the housing 3 suction mouth 4, a rotatably mounted in the housing 3 and driven by an electric motor 5 cleaning roller 6 and a two accumulators 7a, 7b accumulator 8 for the power supply of the electric motor 5.
  • the electric motor 5 has a rated power between 80 watts and 150 watts.
  • the accumulator unit formed from a large first accumulator 7a and a small second accumulator 7b has, based on their total volume, an energy density of more than 200 Wh / l (watt-hour per liter), so that despite their compact design, an energy capacity of more than 40 watt-hours and preferably between 50 watt-hours and 100 watt-hours.
  • the suction nozzle 1 can be operated with a rechargeable battery charge, regardless of the type of floor covering, for more than 30 minutes.
  • the accumulators 7a, 7b are based in the context of the invention on a lithium ion system. Lithium ion accumulators, lithium polymer accumulators, lithium manganese dioxide accumulators, lithium nanophosphate accumulators or lithium / lithium cobalt oxide accumulators are suitable.
  • the accumulators 7a, 7b of the accumulator unit 8 are exchangeably inserted from behind into the housing 3, the first large accumulator 7a being arranged opposite the electric motor 5, the second small accumulator 7b and an electronic control 9.
  • Such a configuration results in a uniform weight distribution.
  • a total weight of the suction nozzle 1 of less than 1.5 kg contributes to good handleability.
  • the electronic control 9, which may also be connected to sensors of the suction nozzle 1, is used for the speed and torque control of the electric motor 5.
  • the electric motor 5 is coupled via a toothed belt 10 with the cleaning roller 6.
  • the cleaning roller 6 is formed as a brush roller with helically around the circumference arranged brush strip 11.
  • a flow-optimized air path with continuous flow transitions is provided within the suction nozzle 1. Furthermore, a housing seal 14 and in the region of the tiltable connection between the housing 3 and a suction pipe connection 15, a flexible suction hose 16 are provided to minimize the false air portion between an upper part 12 and a lower part 13 of the housing 3.
  • the replaceable embodiment of the accumulator unit 8 formed from two accumulators 7a, 7b basically allows the accumulators 7a, 7b to be charged in the removed state or to be replaced in a particularly simple manner by corresponding replacement accumulators. Preferably, however, it is provided that the accumulator unit 8 can also be recharged in an operating pause without being disconnected from the suction nozzle 1.
  • Fig. 2 shows the parked in a break in a charging station 17 and connected via a Saugrohr18 to a vacuum cleaner 2 suction nozzle 1.
  • the suction nozzle 1 is stored in the charging station 17, wherein in the charging station 17 by a charging electronics on and Trickle charge of the accumulator unit 8 takes place.
  • a complete charging and, in addition, a long service life of the accumulator unit 8 can always be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (6)

  1. Buse d'aspiration, avec un boîtier (3), une bouche aspirante (4) placée du côté du fond inférieur dans le boîtier (3), un cylindre nettoyeur (6) logé de manière rotative dans le boîtier (3) et entraîné par un moteur électrique et une unité d'accumulateurs (8) pour l'alimentation en énergie du moteur électrique (5), la buse d'aspiration pouvant se raccorder par l'intermédiaire d'une pièce de raccord (15) arrière sur un tube d'aspiration (18) ou sur un flexible d'aspiration d'un aspirateur, caractérisée en ce que le moteur électrique (5) présente une puissance nominale comprise entre 80 et 150 watts et en ce que l'unité d'accumulateurs (8) présente, en rapport à son volume total une densité énergétique supérieure à 200 Wh/l (wattheures par litre), en ce qu'elle est constituée d'au moins un accumulateur lithium-ion, un accumulateur lithium-polymère, un accumulateur lithium-dioxyde de manganèse, un accumulateur lithiumnanophosphate ou un accumulateur lithium/ oxydes de lithium-cobalt.
  2. Buse d'aspiration selon la revendication 1, caractérisée en ce que la capacité énergétique de l'unité d'accumulateurs (8) est supérieure à 40 Wh (wattheures).
  3. Buse d'aspiration selon la revendication 1 ou la revendication 2, caractérisée en ce que l'unité d'accumulateurs (8) est placée de manière interchangeable sur ou dans le boîtier (3).
  4. Buse d'aspiration selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'unité d'accumulateurs (8) peut se recharger lors d'un arrêt de fonctionnement, sans la dissocier de la buse d'aspiration (1).
  5. Buse d'aspiration selon l'une quelconque des revendications 1 à 4, caractérisée en ce que l'unité d'accumulateurs (8) comporte des accumulateurs (7a, 7b) de conformations différentes qui sont placés séparément en des endroits écartés les uns des autres.
  6. Buse d'aspiration selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le poids total à l'état prêt à l'emploi est inférieur à 2,5 kg, de préférence à 1,5 kg.
EP20070009142 2007-05-07 2007-05-07 Buse d'aspiration avec unité d'accumulateur pour un aspirateur Ceased EP1989983B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE202007008998U DE202007008998U1 (de) 2007-05-07 2007-05-07 Saugdüse für einen Staubsauger
EP20070009142 EP1989983B1 (fr) 2007-05-07 2007-05-07 Buse d'aspiration avec unité d'accumulateur pour un aspirateur
CN2008102103967A CN101336817B (zh) 2007-05-07 2008-05-07 用于吸尘器的抽吸嘴

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070009142 EP1989983B1 (fr) 2007-05-07 2007-05-07 Buse d'aspiration avec unité d'accumulateur pour un aspirateur

Publications (2)

Publication Number Publication Date
EP1989983A1 EP1989983A1 (fr) 2008-11-12
EP1989983B1 true EP1989983B1 (fr) 2014-04-30

Family

ID=38421175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070009142 Ceased EP1989983B1 (fr) 2007-05-07 2007-05-07 Buse d'aspiration avec unité d'accumulateur pour un aspirateur

Country Status (2)

Country Link
EP (1) EP1989983B1 (fr)
CN (1) CN101336817B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015122047A1 (de) 2015-12-17 2017-06-22 Miele & Cie. Kg Staubsauger mit einer Halteeinheit, Bodendüse mit einer Kontakteinheit, Verfahren zum Herstellen eines Staubsaugers mit einer Halteeinheit und Verfahren zum Herstellen einer Bodendüse mit einer Kontakteinheit
US12318061B2 (en) 2020-07-09 2025-06-03 Milwaukee Electric Tool Corporation Floor tool attachment for use with vacuum cleaner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013012335U1 (de) 2013-12-09 2016-05-04 Carl Freudenberg Kg Saugdüse
DE202016102469U1 (de) * 2016-05-09 2017-08-10 Vorwerk & Co. Interholding Gmbh Saugdüse mit verbesserter Feinstaubabführung
CN107184155A (zh) * 2017-07-17 2017-09-22 小狗电器互联网科技（北京）股份有限公司 吸尘器地刷及吸尘器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553897A3 (en) * 1990-01-24 1993-12-29 Black & Decker Inc Vacuum cleaners
AU2003297537A1 (en) * 2002-12-23 2004-07-22 A 123 Systems, Inc. High energy and power density electrochemical cells
JP2008525973A (ja) * 2004-12-28 2008-07-17 ボストン−パワー，インコーポレイテッド リチウムイオン二次電池

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015122047A1 (de) 2015-12-17 2017-06-22 Miele & Cie. Kg Staubsauger mit einer Halteeinheit, Bodendüse mit einer Kontakteinheit, Verfahren zum Herstellen eines Staubsaugers mit einer Halteeinheit und Verfahren zum Herstellen einer Bodendüse mit einer Kontakteinheit
US12318061B2 (en) 2020-07-09 2025-06-03 Milwaukee Electric Tool Corporation Floor tool attachment for use with vacuum cleaner

Also Published As

Publication number Publication date
CN101336817B (zh) 2012-08-22
EP1989983A1 (fr) 2008-11-12
CN101336817A (zh) 2009-01-07

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