• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an underwater cleaner (1), in particular for a swimming pool, with a housing (2) in which a particular battery-operated pump with an electric motor (4) and an impeller (3) is arranged, wherein the housing (2) has an inlet opening (23) and an outlet opening (22) for a flow path which forms a first channel section (13) emanating from the first inlet opening (23) and a second channel section (14) receiving the rotor (3), the second channel section (14 ) is arranged inclined to the first channel section (13), and wherein the impeller axis (18) inclined to a normal (24) on the opening cross-section of the inlet opening (23) is arranged. In order to obtain an underwater cleaner (1) which is as simple and economical as possible, and which has a high suction even with wheels (3) with relatively large diameters, the ratio A / B of a first cross-sectional area A to a second cross-sectional area B is smaller than 2.8, wherein the first cross-sectional area A is defined by the smallest flow cross section in the first channel section (13) and the second cross-sectional area B is defined by the smallest flow cross section of the second channel section (14) directly at the pump inlet.
    公开号:AT517469A4
    申请号:T50778/2015
    申请日:2015-09-10
    公开日:2017-02-15
    发明作者:Fränkel Andrés
    申请人:Fränkel Andrés；
    IPC主号:
    专利说明:

    The invention relates to an underwater cleaner, in particular for a swimming pool, with a housing in which a particular battery-operated pump with an electric motor and an impeller is arranged, wherein the housing has an inlet opening and an outlet opening for a flow path, which emanates one of the first inlet opening first channel portion and a second channel portion receiving the impeller, wherein the second channel portion is arranged inclined to the first channel portion, and wherein the impeller axis is arranged inclined to a normal to the opening cross-section of the inlet opening.
    US 2005/0247613 A1 discloses an underwater vacuum cleaner in which the axis of rotation of the impeller is arranged inclined to a normal to an inlet cross-sectional area. In this case, a first channel section with a tapered cross section is arranged adjacent to the inlet opening of the underwater vacuum cleaner, which opens into a suction chamber, in which a dirt filter is arranged. From this suction chamber is a second channel section, in which a pump is arranged with a radial impeller. The inlet cross section into the pump is relatively small. As a result of numerous deflections and sharp edges, turbulences, which limit the suction power, occur, in particular following the first channel section.
    From WO 2014/173937 Al a Unterwasserreinger is known in which the impeller axis is arranged normal to the opening cross-section of the inlet opening: designed as Axiallaufrad impeller is located near the ground directly in the region of the inlet opening of the underwater cleaner. In particular, when using Axiallaufrädern large diameter can form a stagnation zone with low flow velocities below the impeller axis, in which the cleaning effect is reduced. Thus, the increase in suction power by increasing the impeller diameter limits.
    The object of the invention is to develop a very simple and low-production underwater vacuum cleaner, which - especially when using wheels with relatively large diameters - has a high suction.
    According to the invention this is achieved in that the ratio A / B of a first cross-sectional area A to a second cross-sectional area B is less than 2.8, preferably less than 2, more preferably less than 1, wherein the first cross-sectional area through the smallest flow cross-section in the first channel section and the second cross-sectional area is defined by the smallest flow area of the second passage section immediately at the pump inlet.
    Optimal results can be achieved if the ratio A / B is less than or equal to 0.5.
    In a preferred embodiment of the underwater cleaner, the impeller is designed as axial impeller, which has the advantage that relatively large flow rates and thus a particularly high suction power can be achieved.
    In a further preferred embodiment, the outlet opening is formed by the second channel section. This has the advantage that the arrangement is compact.
    This favors an embodiment in which a receptacle for a dirt filter is arranged in the region of the outlet opening, since a simple, compact and cost-effective construction is achieved thereby. Another advantage results from the fact that by arranging the filter on the pressure side no suction at laid filter leads to problems. Furthermore, the disadvantage of a suction-side filter that fall off the underwater cleaner when lifting the nipple out of the basin and when shutting off the underwater cleaner dirt particles again, can be avoided. In addition, at the same time coarse dirt can be crushed by the impeller, which is another advantage.
    In order to cause the least possible losses by turbulence and detachment is designed as a further preferred embodiment of the second channel section as a cylindrical tube. This shape is also inexpensive to produce.
    The angle between the fluid axis of the first channel portion and the fluid axis of the second channel portion preferably includes an angle of 30 ° to 90 °, while particularly preferred is an embodiment in which this angle is between 70 ° and 80 °. By this arrangement, the area in which even large dirt particles can be sucked in on the whole, covered by the initial region of the first channel section area can be extended. This is not possible with underwater cleaners in which the impeller axis is arranged normal to the opening cross section of the inlet opening. In these, reduced speeds occur near the impeller axis and therefore to an area where the cleaning effect is locally lower.
    In order to further reduce the size of the underwater cleaner, the impeller is located directly at the beginning of the second channel section in a favored embodiment.
    Preferably, the underwater cleaner is further designed so that the first channel section merges into the second channel section. In this case, an embodiment in which the initial region of the second channel section directly adjoins the end region of the first channel section is particularly preferred; this is advantageous for a solution which is as uncomplicated as possible with few detachments and losses caused thereby.
    In a further preferred embodiment, the first channel section has a rectangular or oval cross-section, which preferably tapers from the starting region of the first channel section to the end region of the first channel section. This embodiment provides the advantage in cleaning a swimming pool that even corners and steps can be cleaned more easily.
    In addition, an embodiment in which between the electric motor and impeller a transmission is arranged and the ratio between the speed of the electric motor and the speed of the impeller is greater than 1 favors. By this embodiment, the installation of a compact motor with high speeds is used. Therefore, a lower-power motor can be used, which allows a relatively larger suction power.
    The invention will be explained in more detail below with reference to the non-limiting figures.
    Show it
    1 shows an underwater cleaner according to the invention in a side view,
    2 shows the underwater cleaner in a front view,
    3 shows the underwater cleaner in section along the line III-III in Fig. 1,
    4 shows the underwater cleaner in section along the line IV-IV in Fig. 2,
    5 shows the underwater cleaner in an entrance side view,
    Fig. 6 shows the underwater cleaner in a side view and
    7 shows the underwater cleaner in section along the line VII-VII in Fig. 6th
    The underwater cleaner 1 shown in the figures, for example for a swimming pool, has a housing 2, in which an impeller 3, with an electric motor 4 and a transmission 5 operate as a pump. The impeller 3 is driven by the electric motor 4 via the transmission 5. The electric motor 4 and the gear 5 and the bearing of the impeller 3 are housed in a pump housing 6. The pump housing 6 is connected to the housing 2 via a suspension 7. About the suspension 7 at the top of the housing 2, for example, rechargeable batteries 8 are arranged. The batteries 8 are waterproof, arranged by a battery case cover 9, sealed in the housing 2. On the housing 2, a closure 10 for the battery case cover 9 is attached. The suspension 7 is hollow in order to accommodate therein the electrical connection between the electric motor 4 and the batteries 8. Outside the housing 2 next to the shutter 10 is a switch 11 through which the power supply of the electric motor 4 can be actuated. According to an alternative variant, not shown, the batteries 8 are arranged directly on or in the pump housing 6.
    In the embodiment shown, the impeller 3 is designed as axial impeller.
    In order to move the underwater cleaner 1 on the pool floor can be mounted on the device a rod not shown. This rod is connected to a rod holder 12. The rod receptacle 12 is located on the upper side of the housing 2 behind the batteries 8. In the illustrated embodiment, the rod receptacle 12 is rigidly connected to the housing 2. However, the rod holder 12 can also be made pivotable relative to the housing 2.
    The housing 2 has a first channel section 13 and a second channel section 14. In the second channel section 14 is the impeller 3 and the pump housing 6 with electric motor 4 and gear 5. In the recorded embodiment, the second channel section 14 has the shape of a cylindrical tube, the first channel section 13 merges directly into the second channel section 14.
    At the outlet opening 22 of the second channel section 14, a dirt filter 15 is mounted on the pressure side. In the illustrated embodiment, the impeller 3 has two impeller blades, whereby leaves and other debris can be easily removed from the pool surface and transported into the dirt filter 15.
    The inlet opening 23 is located on the surface to be cleaned facing underside of the underwater cleaner 1. The normal 24 is normal to the plane defined by the inlet opening 23 and is parallel to the fluid axis 16 of the first channel section thirteenth
    The fluid axis 16 of the first channel section 13 and the impeller axis 18 include in the embodiment shown an angle α of 70 ° to 80 °. The impeller axis 18 coincides in this embodiment with the fluid axis 17 of the second channel section 14.
    In the first channel section 13, a first cross-sectional area A, which is defined by the smallest flow cross-section in the first channel section 13, is particularly emphasized, as is a second cross-sectional area B of the second channel section 14 in the area of entry into the impeller 3. The ratio of the first cross-sectional area A to second cross-sectional area B is less than 0.5 in the illustrated embodiment.
    In the region of the inlet opening 23 of the first channel section 13, the flow cross-section is greatly widened in order to be able to detect the largest possible area through the suction effect. The cross sections along the fluid axis 16 of the first channel section 13 towards the impeller 3 are then progressively smaller down to the first cross-sectional area A, as can be seen in FIG. At the entrance of the first channel section 13, a roller 19 is attached to the front of the housing 2. At the rear of the housing 2 at the inlet of the first channel section 13, a larger roller 20 is attached to the left and right of the fluid axis 16 of the first channel section 13. These three rollers serve to keep sufficient distance to the ground, so that the underwater cleaner 1 does not suck on the pool floor and thus further movement remains possible. Around the inlet opening 23 of the first channel section 13 brushes 21 are arranged. In this embodiment, brushes 21 are mounted in four places to achieve a better cleaning effect.
    The illustrated embodiment has at the inlet opening 23, a protective grid 25 to prevent Hineinfassen in the impeller 3. As a result, injuries can be avoided.
    权利要求:
    Claims (12)
    [1]
    1. Underwater cleaner (1), in particular for a swimming pool, with a housing (2) in which a particular battery-operated pump with an electric motor (4) and an impeller (3) is arranged, wherein the housing (2) has an inlet opening (23 ) and an outlet opening (22) for a flow path which forms a first passage section (13) emanating from the first entry opening (23) and a second passage section (14) receiving the impeller (3), the second passage section (14) being inclined is arranged to the first channel section (13), and wherein the impeller axis (18) inclined to a normal (24) on the opening cross-section of the inlet opening (23) is arranged, characterized in that the ratio A / B of a first cross-sectional area A to a second Cross-sectional area B is less than 2.8, wherein the first cross-sectional area A through the smallest flow cross section in the first channel portion (13) and the second cross section surface B is defined by the smallest flow cross section of the second channel section (14) directly at the impeller inlet.
    [2]
    2. Underwater cleaner (1) according to claim 1, characterized in that the ratio A / B of the first cross-sectional area A to the second cross-sectional area B is smaller than 2.
    [3]
    3. Underwater cleaner (1) according to claim 1 or 2, characterized in that the ratio A / B of the first cross-sectional area A to the second cross-sectional area B is smaller than 1.
    [4]
    4. Underwater cleaner (1) according to one of claims 1 to 3, characterized in that the impeller (3) is designed as Axiallaufrad.
    [5]
    5. Underwater cleaner (1) according to one of claims 1 to 4, characterized in that the second channel section (14) forms the outlet opening (22).
    [6]
    6. Underwater cleaner (1) according to one of claims 1 to 5, characterized in that in the region of the outlet opening (22) has a receptacle for a dirt filter (15) is arranged.
    [7]
    7. Underwater cleaner (1) according to one of claims 1 to 6, characterized in that the second channel section (14) is formed by a preferably cylindrical tube.
    [8]
    8. Underwater cleaner (1) according to one of claims 1 to 7, characterized in that a fluid axis (16) of the first channel section (13) in the region of the inlet opening (23) with the impeller axis (18) and / or with a fluid axis (17 ) of the second channel section (14) encloses an angle (a) between 30 ° and 90 °, preferably between 70 ° and 80 °.
    [9]
    9. Underwater cleaner (1) according to one of claims 1 to 8, characterized in that the impeller (3) is arranged directly at the beginning of the second channel section (14).
    [10]
    10. Underwater cleaner (1) according to any one of claims 1 to 9, characterized in that the first channel section (13) merges into the second channel section (14), wherein preferably the initial region of the second channel section (14) directly to the end of the first Channel section (13) connects.
    [11]
    11. underwater cleaner (1) according to one of claims 1 to 10, characterized in that the first channel portion (13) has a substantially rectangular or oval cross section, wherein preferably the cross section between a starting portion and an end portion of the first channel portion (13) rejuvenated.
    [12]
    12. Underwater cleaner (1) according to one of claims 1 to 11, characterized in that the electric motor (4) via a gear (5) acts on the impeller (3), so that the ratio between the rotational speed of the electric motor (4) and the speed of the impeller (3) is greater than 1.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3141675B1|2018-12-19|
    CN106639391A|2017-05-10|
    EP3141675A1|2017-03-15|
    CN106639391B|2019-06-28|
    AT517469B1|2017-02-15|
    US10184259B2|2019-01-22|
    US20170073989A1|2017-03-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1920172C3|1969-04-21|1981-04-09|Robert Roy Boca Raton Fla. Myers|Self-propelled machine for vacuuming the bottom of a swimming pool|
    US6485638B2|1999-11-15|2002-11-26|Melvyn L. Henkin|Electric powered automatic swimming pool cleaning system|
    US6652742B2|2000-11-14|2003-11-25|Melvyn L. Henkin|Automatic pool cleaner system utilizing electric and suction power|
    US20050279682A1|2001-11-30|2005-12-22|Davidson Donald R|Debris bag for a swimming pool cleaning apparatus|
    CA2466242A1|2004-05-04|2005-11-04|Wayne Bishop|Underwater cleaner|
    US7520015B1|2005-11-02|2009-04-21|Mike Ajello|Portable submersible cleaning device|
    CN200999475Y|2007-01-20|2008-01-02|黄俊峰|Swimming pool bottom auto-cleaner|
    AU2007346281B2|2007-02-06|2013-07-04|Zodiac Pool Care South Africa Limited|Swimming pool cleaner|
    FR2914868B1|2007-10-08|2010-09-24|Kokido Ltd|DEVICE FOR AUTOMATIC CLEANING OF A SUBMERGED SURFACE IN A LIQUID|
    FR2929310B1|2008-03-27|2016-06-03|Zodiac Pool Care Europe|IMMERED SURFACE CLEANING APPARATUS WITH PROTUBERANCE ACCELERATOR OF INPUT FLOW|
    US8990990B2|2011-10-03|2015-03-31|Pentair Water Pool And Spa, Inc.|Pool cleaner with hydraulic timer assembly|
    AT513827B1|2013-04-23|2014-08-15|Andrés Fränkel|An underwater cleaner|
    CN203347291U|2013-07-23|2013-12-18|宁波东川游泳池设备有限公司|Automatic cleaner for swimming pool|
    US10094130B2|2013-11-08|2018-10-09|Water Technology, Llc|Submersible electric-powered leaf vacuum cleaner|
    US10224839B2|2015-02-12|2019-03-05|Dan Dietrich|Power switch for motorized pool vacuum|US10934732B2|2018-08-07|2021-03-02|William L. Reacer|Swimming pool cleaning head|
    CN109080790B|2018-08-14|2020-02-07|中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所）|Underwater automatic cleaning equipment for propeller and cleaning method thereof|
    CN111779327A|2020-07-11|2020-10-16|宁波博尔富泳池设备有限公司|Large-capacity swimming pool dirt suction machine|
    法律状态:
    2018-04-15| PC| Change of the owner|Owner name: NOVETRIUM GMBH, AT Effective date: 20180215 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50778/2015A|AT517469B1|2015-09-10|2015-09-10|UNDERWATER CLEANER|ATA50778/2015A| AT517469B1|2015-09-10|2015-09-10|UNDERWATER CLEANER|
    EP16185089.6A| EP3141675B1|2015-09-10|2016-08-22|Underwater cleaner|
    US15/257,344| US10184259B2|2015-09-10|2016-09-06|Underwater cleaner|
    CN201610816517.7A| CN106639391B|2015-09-10|2016-09-09|Underwater cleaner|
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