EP1849934A1 - Automatisches Schwimmbadreinigungsgerät - Google Patents

Automatisches Schwimmbadreinigungsgerät Download PDF

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Publication number
EP1849934A1
EP1849934A1 EP06008847A EP06008847A EP1849934A1 EP 1849934 A1 EP1849934 A1 EP 1849934A1 EP 06008847 A EP06008847 A EP 06008847A EP 06008847 A EP06008847 A EP 06008847A EP 1849934 A1 EP1849934 A1 EP 1849934A1
Authority
EP
European Patent Office
Prior art keywords
cleaner
pool
belt
motor
cleaner according
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.)
Granted
Application number
EP06008847A
Other languages
English (en)
French (fr)
Other versions
EP1849934B1 (de
Inventor
Guilan c/o Tianjin Wangyuan Env. Prot. & Tech. Fu
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.)
Tianjin Wangyuan Environmental Protection & Technology Co Ltd
Original Assignee
Tianjin Wangyuan Environmental Protection & Technology Co Ltd
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 Tianjin Wangyuan Environmental Protection & Technology Co Ltd filed Critical Tianjin Wangyuan Environmental Protection & Technology Co Ltd
Priority to AT06008847T priority Critical patent/ATE444422T1/de
Priority to DE602006009483T priority patent/DE602006009483D1/de
Priority to EP06008847A priority patent/EP1849934B1/de
Priority to ES06008847T priority patent/ES2334376T3/es
Publication of EP1849934A1 publication Critical patent/EP1849934A1/de
Application granted granted Critical
Publication of EP1849934B1 publication Critical patent/EP1849934B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/1654—Self-propelled cleaners

Definitions

  • the invention generally relates to an automatic pool cleaner and, in particular, to an automatic pool cleaner for cleaning pool floor and pool walls.
  • Such a pool cleaner is essentially intended to clean swimming pools.
  • Pool cleaners according to the state of the art are generally provided with a self-propelled cleaner intended to be dived into the pool and adapted to be moved over the surface to be cleaned.
  • the cleaner comprises rotating clean bands intended to clean the pool floor and the pool wall as well as to propel the cleaner, and filtering means used to filter the water.
  • cleaners are usually moved randomly on the pool floor and are caused to creep on the pool wall by the rotating of the clean bands to reach to the purpose of cleaning pool floor and pool wall, meanwhile water moves in and out of this cleaner makes dirt and suspended debris filtered mechanically by the filtering means.
  • the filtering means are provided with a pump impeller used to force water within the filtering means as well as to thrust the cleaner against the pool walls, such that the pool cleaner is capable of climbing up vertical walls.
  • a pump impeller used to force water within the filtering means as well as to thrust the cleaner against the pool walls, such that the pool cleaner is capable of climbing up vertical walls.
  • two motors are used to drive the clean bands and the pump impeller, respectively.
  • this arrangement creates some difficulties, in particular as concerns designing the control circuit used to control the motors and as concerns operating of such cleaner. In addition, it renders the use and the manipulation of the cleaner troublesome.
  • Document FR 2 729 995 discloses a pool cleaner intended to alleviate some of these drawbacks by providing one motor only to drive the clean bands and the filtering means. Although this single motor design overcomes the drawbacks linked to the use of two motors, the motor used in this device is an alternating current motor (AC motor).
  • AC motor alternating current motor
  • a large current requires an increased section area of the cable used to connect the power supply to the cleaner. That is to say the cable is much thicker. Accordingly, such a cable of larger section area will increase the load and the burden of the cleaner, which is prejudicial to the climbing efficiency of the cleaner and causes creeping on the floor and wall uneasy.
  • AC motor power used in this kind of cleaners is of about 150 watt which is not strong enough to drive the filtering means and the clean bands and reduces the working efficiency. But if the single AC motor were increased up to 300 watt, then the volume and weight would be largely increased.
  • the aim of the invention is to provide a totally different solution to the problem of powering the cleaner bands and the filtering means.
  • an aim of the invention is overcome the drawbacks of the pool cleaners according to the state of the art and to provide a pool cleaner easy to control and to manipulate, which can be configured in a relatively small arrangement, and having improved climbing capacities.
  • the invention relates to a pool cleaner, comprising a self-propelled cleaner intended to be immerged in the pool and to be moved over surfaces of the pool to be cleaned and electric power supply means for powering the cleaner, said self-propelled cleaner having propelling means for propelling the cleaner, cleaning means and motor means to drive the propelling means and clean means.
  • the motor means comprise one motor only, said motor consisting in a direct-current motor, the power supply means comprising a direct-current supply source.
  • the power supply source comprises an alternating current cable intended to be connected to a 220V 50Hz city power socket, a converter used to convert power delivered by the city power socket into DC power, and a DC cable linking the power supply source and said self-propelled cleaner.
  • the direct-current motor is a 24V direct-current motor.
  • a maximum output power of 480 watt can be used, which could satisfy the requirement of the cleaner.
  • DC 24V is in compliance with the safety voltage standard concerning under-water devices specified by European Union.
  • DC 24V motor doesn't need large section area cable to link motor with power supply, which would otherwise make cleaner moving and creeping uneasy.
  • the cleaning means comprise a clean band arranged as a loop and filtering means intended to filter pool water.
  • the single motor may be located in the middle of said self-propelled cleaner and may comprise a shaft having a first end used to rotate said clean band through reducer, and a second end used to drive the filtering means.
  • the filtering means comprise an impeller to form function of centrifugal pump and make pool water moving in and out of cleaner for filtering dirt and suspended debris.
  • the pool cleaner comprises a serrated belt used to propel the cleaner and rotated by said motor by means of gears, said belt being arranged as a loop mounted around holding wheels.
  • the pool cleaner further comprises an elastic back plate lying under the belt, said back plate being such that when the belt looses and touches said elastic back plate, the plate stops the belt from loosing, and keeps the normal running between the belt and gears.
  • a solution is given to the problem of belt loosening; said belt becoming larger and loosened due to long time pull strength force applied by tensile wheels.
  • the synchronous serrated belt as the driving function tends to become longer and loosened due to the pulling force applied such that sliding from gear happens.
  • Tension is always indirect proportional to driving force, such that when the driving force increases, the tension of the belt increases accordingly. That is to say due to the existing of tension, the stretching stress of the serrated belt is increased, which reduces its ability to endure the driving forces. Due to the stretching, the synchronous serrated belt becomes longer, which leads to a state in which the holder of driving system becomes out of shape and the belt tension is reduced.
  • the serrated belt is a durable fibre skeleton synchronous serrated belt.
  • the synchronous serrated belt is able to meet the request of long time using.
  • this belt does not need to be often changed. It is also clear that tensile wheels will not need much space in the device.
  • the skeleton material used for the driving system belt is steel wire that is poor in fatigue, strength resistance and bending resistance, and is not suitable for long time using.
  • the skeleton of the synchronous serrated belt is of high strength synthetic fibre which is characterized by its high strength, high modulus, high temperature resistance, and resistance to etching by most of acid and alkali or organic solvents. Its' specified strength is 5 ⁇ 6 times higher than steel wire, and specified modulus is 2 times higher than steel wire. Such features render the pulling strength and bending resistance of such skeleton belt improved.
  • elliptic ball bearings are used.
  • the bearing sleeve is of elliptic ball shape with stainless steel bearing inlaid.
  • the distance between the two centres of elliptic sphere is 0.8mm.
  • Elliptic ball bearing sleeves are mounted inside left and right holder holes, and screws are fastened to prevent the sleeves from moving in axial direction. There is a spacing protruding which limits the bearing moving up and down.
  • This structure has good radial direction positioning which ensures the parallelism and central positioning of the belt and clean bands.
  • this structure could keep synchronous serrated belt is always within the efficient width of terminal wheels.
  • this structure will stop the abrasion between terminal wheel cover with synchronous serrated belt.
  • the pool cleaner may comprise means to control the cleaner such that there is automatically power off after cleaner is off water.
  • said means are adapted to power off automatically said cleaner within 10 seconds in case of the cleaner is turn-on on land or creep out of water without turning back to water.
  • the protection of the motor is a key point of the pool cleaner and is of great importance. Due to the fact that the device is intended to be used under water, the motor elements may be damaged if the cleaner is used on land, namely at higher temperature. Programming the cleaner such that it is automatically stopped in such a case permits to overcome such a drawback.
  • the pool cleaner according to the invention comprises a self-propelled cleaner 1 intended to be immersed in a swimming pool for cleaning the pool floor and walls as well as to filter the pool water, and electric power supply means for powering the cleaner.
  • the cleaner 1 and the power supply means are linked using a cable 2.
  • the cleaner 1 is provided with propeller means 3 dully programmed and configured to cause the cleaner to circulate onto the pool floor and to climb the pool walls, by circulating forwards and backwards, turning right and left hand according to programmed sequences of movements, in order to cover all the surface of the floor and of the walls.
  • the cleaner 1 For cleaning the pool, the cleaner 1 comprises cleaning means 4 which are driven by motor means 5.
  • the propeller means essentially comprise durable fibre skeleton synchronous serrated belt 6 forming a loop mounted around holding wheels 7, one of which, denoted by numeral reference 7', is used to apply tensile force onto the belt 6.
  • the cleaner lies onto the horizontal or vertical walls of the pool by the serrated belt 6.
  • At least one of the holding wheels is rotated by the motor means 5.
  • the cleaner is provided with filtering means 8 having water inlet and outlet 9, 9' and a filter net 10 around a filter box 12.
  • the filter box in mounted within a body 13 secured onto the cleaner frame 14.
  • the cleaning means comprise an impeller forcing water through the filtering means 8 and creating simultaneously a thrust allowing the cleaner to climb up vertical walls.
  • the cleaning means, and in particular the impeller, and the propeller means, in particular the serrated belt is rotated using one DC motor only.
  • the motor is a 24V DC motor.
  • the DC 24V motor permits to generate large power and large torque in comparison with an AC motor having the same weight. Large power and torque makes water flow larger, as well as improves the ability of cleaner's creeping on pool wall.
  • a DC 24V motor is easy to be controlled to do the function of commutating, stopping and time setting, which could make the intervals among the functions changing shorter and smooth.
  • the motor comprises a drive shaft, on end of which is used to propel the cleaner by means of the serrated belt. Another end of the drive shaft is used to rotate the impeller to force water within the filtering means and to create the above-mentioned thrust.
  • the single motor is located in the middle of robot.
  • One of its terminal axis drives the rotating of clean bands moving through retardars or reducers and the other terminal axis drives the impeller to form the function of centrifugal pump and make pool water moving in and out of cleaner for filtering dirt and suspended debris.
  • a further feature of this invention is the design and using of an elastic back plate 15 to avoid loosening of the serrated belt.
  • This plate is arranged in the form of an elastic concave metal plate under the synchronous serrated belt 6. There is a gap between them.
  • the elastic back plate will not touch belt, as well as no any influence to the running of the belt.
  • the plate When the belt touches elastic back plate, the plate then stops the belt from loosing, and keeps the normal running or cooperation between the belt and gear. That is to say, when the belt begins to slide and reaches the elastic back plate, the plate starts to play its role.
  • the purpose of the elastic back plate is not only to avoid the requirement of more space in the device, but also to avoid the necessity to apply an extra tension to the belt, which makes the belt using longer. Meanwhile, using the elastic back plate does not need high requirement to the performance of the synchronous serrated belt, material and stiffness of the driving system holder.
  • the driving system holder can thus have a simple structure and a small size, which make it easy to install.
  • the cleaning means further comprise a clean band 16 arranged in the form of a loop lying from the front end of the cleaner to the rear end.
  • the clean band is mounted around front and rear rotary drums 17 fixed onto rotary drum wheels 18 mounted on rotary drum wheel sleeve 19.
  • each rotary drum is mounted around a buoy 20.
  • each rotary drum wheel sleeve rotates within support holes 21 of holder arms 23 (figure 3) using elliptic ball bearing sleeves 24 (figure 6).
  • the band 16 is made of a long tooth band made of a PVC which is not easy to break, and makes cleaning in all directions in the pool.
  • Elliptic ball bearing sleeve 24 provides good positioning, and good running concentricity.
  • terminal wheel sleeve 19 is made of stainless steel without lubrication, with long time using.
  • the driving system part of the cleaner in particular the bearing sleeves 24 and the holes 21, are all of stainless steel without lubrication permitting easy rotating and particularly suitable for long using under water.
  • Another feature of this invention relates to the function of automatically powering off of the cleaner in case of the cleaner is off water for 10 seconds.
  • This invention uses a single DC 24V motor. Protection of the motor is of great importance.
  • the cleaner in this invention is intended to be used under water, but not on land. It is much easy to cause damages to the motor due to an improper use of the cleaner on land by end user, or a creeping of the cleaner out of water without turning back. Accordingly the cleaner is dully controlled and programmed in order to be powered off automatically within 10 seconds in case of the cleaner is turned-on on land or crept out of water without returning back to water. If cleaner returns to water within 10 seconds, then cleaner recovers the status of normal operating.
  • the cleaner is provided with a current inspection sensor installed in the input terminal of the power supply source.
  • the current value data thus obtained is sent to a central process chip for analysis to control the status of cleaner.
  • the pool cleaner 1 comprises a cover 25 consisting in an upper cover 26, a floating block 27 and sealing strap 28. Its' main characteristic is the unique configuration of the cover 25and its fabrication in poly-foam plastic.
  • a chassis body 13 which body comprises a water inlet cover plate 29, a press plate 30 and a floating block 31. It's main characteristic is that the water inlet cover plate 19 is made from silicon rubber. There are holes on the surface which ensures that the water inside the cleaner could drain out quickly and reduces the weight when the cleaner is lifted out of water.
  • the power supply means consists of low safety voltage DC switch power supply.
  • the power supply means comprise an alternating current cable intended to be connected to a 220V 50Hz city power socket, a converter used to convert power delivered by the city power socket into DC power, and a DC cable linking the power supply source and the self-propelled cleaner.
  • the power supply means further comprise a control circuit board, commutating relay, operating control board used to control the DC motor.
  • control circuit board comprises a monolithic processor dully programmed to carry out the functions of precision timing control, time sequence optimizing, start/stop control, operating mode control, direction control, abnormal operation protection, and status display.
  • the input terminal of the control circuit board is connected to the low voltage DC switch power supply and to the operating control board.
  • the command from the operating control board combined with the automatically detected input current of the cleaner are processed by the monolithic processor in the circuit board to detect the status of cleaner, and then output to the commutate relay which insert the switch power to the motor and drive the motor in order to reach to the purpose of cleaning.
  • the working procedures of this invention cleaner is:
  • the alternating current cable of power supply box connects to 22V 50Hz city power socket, press on/off button on control penal to power on cleaner, and make power supply modulor PSP-600 working and output 24V power which is either the power of control panel, or the power of DC motor, and transfer to motor by 20 meters cable.
  • DC motor controlled by program could finish two functions: one is to control the moving of cleaner under water, in which moving route, distance, direction are programmed; the other is to moving water in & out for filtering dirt and suspended debris on filtering bags to realize the purpose of water filtering.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Massaging Devices (AREA)
  • Detergent Compositions (AREA)
  • Filtration Of Liquid (AREA)
  • Electric Vacuum Cleaner (AREA)
EP06008847A 2006-04-27 2006-04-27 Automatisches Schwimmbadreinigungsgerät Not-in-force EP1849934B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT06008847T ATE444422T1 (de) 2006-04-27 2006-04-27 Automatisches schwimmbadreinigungsgerät
DE602006009483T DE602006009483D1 (de) 2006-04-27 2006-04-27 Automatisches Schwimmbadreinigungsgerät
EP06008847A EP1849934B1 (de) 2006-04-27 2006-04-27 Automatisches Schwimmbadreinigungsgerät
ES06008847T ES2334376T3 (es) 2006-04-27 2006-04-27 Limpiadora automatica de piscinas.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06008847A EP1849934B1 (de) 2006-04-27 2006-04-27 Automatisches Schwimmbadreinigungsgerät

Publications (2)

Publication Number Publication Date
EP1849934A1 true EP1849934A1 (de) 2007-10-31
EP1849934B1 EP1849934B1 (de) 2009-09-30

Family

ID=36930336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008847A Not-in-force EP1849934B1 (de) 2006-04-27 2006-04-27 Automatisches Schwimmbadreinigungsgerät

Country Status (4)

Country Link
EP (1) EP1849934B1 (de)
AT (1) ATE444422T1 (de)
DE (1) DE602006009483D1 (de)
ES (1) ES2334376T3 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140262401A1 (en) * 2013-03-14 2014-09-18 Hayward Industries, Inc. Pool Cleaner Drive Mechanism And Associated Systems And Methods
US9677294B2 (en) 2013-03-15 2017-06-13 Hayward Industries, Inc. Pool cleaning device with wheel drive assemblies
US9758979B2 (en) 2009-10-19 2017-09-12 Hayward Industries, Inc. Swimming pool cleaner
US9878739B1 (en) 2017-05-11 2018-01-30 Hayward Industries, Inc. Pool cleaner modular drivetrain
US9885196B2 (en) 2015-01-26 2018-02-06 Hayward Industries, Inc. Pool cleaner power coupling
US9885194B1 (en) 2017-05-11 2018-02-06 Hayward Industries, Inc. Pool cleaner impeller subassembly
US9896858B1 (en) 2017-05-11 2018-02-20 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US9909333B2 (en) 2015-01-26 2018-03-06 Hayward Industries, Inc. Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system
US10156083B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner power coupling
US10161154B2 (en) 2013-03-14 2018-12-25 Hayward Industries, Inc. Pool cleaner with articulated cleaning members and methods relating thereto
US10214933B2 (en) 2017-05-11 2019-02-26 Hayward Industries, Inc. Pool cleaner power supply
CN112536300A (zh) * 2020-11-19 2021-03-23 中国石油大学(华东) 一种水族馆水池清洗装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8343339B2 (en) 2008-09-16 2013-01-01 Hayward Industries, Inc. Apparatus for facilitating maintenance of a pool cleaning device
US8784652B2 (en) 2010-09-24 2014-07-22 Poolvergnuegen Swimming pool cleaner with a rigid debris canister
US8869337B2 (en) 2010-11-02 2014-10-28 Hayward Industries, Inc. Pool cleaning device with adjustable buoyant element
USD789003S1 (en) 2014-11-07 2017-06-06 Hayward Industries, Inc. Pool cleaner
USD787761S1 (en) 2014-11-07 2017-05-23 Hayward Industries, Inc. Pool cleaner
USD787760S1 (en) 2014-11-07 2017-05-23 Hayward Industries, Inc. Pool cleaner
USD789624S1 (en) 2014-11-07 2017-06-13 Hayward Industries, Inc. Pool cleaner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009498A1 (fr) * 1989-02-15 1990-08-23 Suennen Jean Albert Francois Procede et dispositif pour nettoyage de piscines
FR2685374A1 (fr) * 1991-12-24 1993-06-25 Nicoloff Pierre Robot aspirateur autonome pour piscines.
FR2729995A1 (fr) * 1995-02-01 1996-08-02 Sarl Vbv Dispositif nettoyeur de parois de bassins en eau et notamment de piscines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009498A1 (fr) * 1989-02-15 1990-08-23 Suennen Jean Albert Francois Procede et dispositif pour nettoyage de piscines
FR2685374A1 (fr) * 1991-12-24 1993-06-25 Nicoloff Pierre Robot aspirateur autonome pour piscines.
FR2729995A1 (fr) * 1995-02-01 1996-08-02 Sarl Vbv Dispositif nettoyeur de parois de bassins en eau et notamment de piscines

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9758979B2 (en) 2009-10-19 2017-09-12 Hayward Industries, Inc. Swimming pool cleaner
US9784007B2 (en) 2009-10-19 2017-10-10 Hayward Industries, Inc. Swimming pool cleaner
US10161154B2 (en) 2013-03-14 2018-12-25 Hayward Industries, Inc. Pool cleaner with articulated cleaning members and methods relating thereto
US20140262401A1 (en) * 2013-03-14 2014-09-18 Hayward Industries, Inc. Pool Cleaner Drive Mechanism And Associated Systems And Methods
US9677294B2 (en) 2013-03-15 2017-06-13 Hayward Industries, Inc. Pool cleaning device with wheel drive assemblies
US9885196B2 (en) 2015-01-26 2018-02-06 Hayward Industries, Inc. Pool cleaner power coupling
US11236523B2 (en) 2015-01-26 2022-02-01 Hayward Industries, Inc. Pool cleaner with cyclonic flow
US10557278B2 (en) 2015-01-26 2020-02-11 Hayward Industries, Inc. Pool cleaner with cyclonic flow
US9909333B2 (en) 2015-01-26 2018-03-06 Hayward Industries, Inc. Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system
US9878739B1 (en) 2017-05-11 2018-01-30 Hayward Industries, Inc. Pool cleaner modular drivetrain
US10156083B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner power coupling
US10155538B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner modular drivetrain
US10214933B2 (en) 2017-05-11 2019-02-26 Hayward Industries, Inc. Pool cleaner power supply
US10253517B2 (en) 2017-05-11 2019-04-09 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US9896858B1 (en) 2017-05-11 2018-02-20 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US10767382B2 (en) 2017-05-11 2020-09-08 Hayward Industries, Inc. Pool cleaner impeller subassembly
US9885194B1 (en) 2017-05-11 2018-02-06 Hayward Industries, Inc. Pool cleaner impeller subassembly
CN112536300A (zh) * 2020-11-19 2021-03-23 中国石油大学(华东) 一种水族馆水池清洗装置
CN112536300B (zh) * 2020-11-19 2022-12-09 中国石油大学(华东) 一种水族馆水池清洗装置

Also Published As

Publication number Publication date
DE602006009483D1 (de) 2009-11-12
EP1849934B1 (de) 2009-09-30
ES2334376T3 (es) 2010-03-09
ATE444422T1 (de) 2009-10-15

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