• 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 a vacuum cleaner (1) comprising: - a main body comprising a handle and a duct (6) main air suction; - Suction means (7) generating a flow of air through the main air intake duct (6); a device (4) for cyclonic dust separation with one or two stages, connected aeraulically to the main suction duct (6); - a duct (8) secondary air evacuation comprising an outer outlet (9); characterized in that the secondary duct (8) for evacuation of air comprises at least one passage (10) in which said duct (8) forms a secondary fold (11) at an angle of between 120 ° and 200 ° and preferably 180 ° along an axis of trajectory (A).
    公开号:FR3046046A1
    申请号:FR1563160
    申请日:2015-12-23
    公开日:2017-06-30
    发明作者:Donatien Frot；Fabien David
    申请人:SEB SA；
    IPC主号:
    专利说明:

    GEOMETRY OF AERAULIC CIRCUIT FOR A HAND VACUUM
    The present invention relates to battery-operated bagless hand vacuums using an electronically commutated motor (ECM) and comprising a cyclonic filter device.
    More particularly, the invention relates to a particular architecture of an air flow circuit for evacuating an air flow at the outlet of the engine.
    Hand vacuums are already known which comprise a main air intake duct as well as suction means generating a flow of air through the main air intake duct. These vacuum cleaners also comprise a cyclonic dust separation device aeraulically connected to the main suction duct and a secondary evacuation duct which is arranged to evacuate the air flow. Said secondary discharge duct is generally connected aeraulic to the cyclonic dust separation device and is arranged after it.
    However, the secondary evacuation duct of these vacuums directly rejects the flow of air outside the vacuum cleaner. In other words, the output flow of the motor takes the shortest way out of the vacuum cleaner. It has been noticed that this generates a lot of noise because the air flow has a high speed at the outlet of the secondary evacuation duct. These hand vacuums are so noisy which creates discomfort for users.
    Particular constructions of secondary evacuation ducts exist in order to reduce the noise but they induce inconveniences such as pressure drops at the motor level or a reduction in the compactness of the hand-held vacuum cleaner or else an undirected evacuation of the flow of water. 'air.
    An object of the present invention is to meet the drawbacks mentioned above and to provide an air flow circuit which makes it possible to minimize the pressure drops, to reduce the noise level of the vacuum cleaner, to cool the motor electronics, to direct the flow of air outlet and to guarantee the compactness of the hand-held vacuum cleaner.
    For this, the invention relates to a hand-held vacuum cleaner comprising: - a main body comprising a handle and a main air intake duct; - Suction means generating a flow of air through the main air intake duct; - A cyclonic dust separation device with one or two stages, aeraulic connected to the main suction duct; a secondary air evacuation duct comprising an external outlet; characterized in that the secondary duct for discharging air comprises at least one passage in which said secondary duct forms a fold at an angle of between 120 ° and 200 ° and preferably 180 ° along a path axis.
    In this way, the secondary duct for evacuating the air flow is extended relative to the existing ducts which directly discharge the air out of the main body. This makes it possible to reduce the speed of the air flow at the outlet of the secondary evacuation duct and thus makes it possible to reduce at least part of the noise. Indeed, as the contact area between the air flow and the secondary evacuation duct is increased, there is more friction of the flow with the walls of the secondary evacuation duct, which has the effect of mechanically decreasing the velocity of the air flow at the output and thus to reduce the noise.
    According to one characteristic of the invention, the secondary air evacuation duct forms with the external outlet an angle of between 80 and 90 °.
    In this way, the outgoing flow can be oriented so that it is not directed towards the user.
    According to one characteristic of the invention, the main body comprises at least one main portion and a secondary portion and said main portion comprises a portion which is positioned under said secondary portion and said secondary portion comprises a central cone of revolution along a longitudinal axis. revolution directed towards the interior of the main body and which is positioned at least partly below the portion of the main part.
    Such a construction makes it possible to manufacture a secondary evacuation duct from the main body and thus to reduce the noise while maintaining the compactness of such a vacuum cleaner because it is not necessary to add a duct annex that would increase the size of such a vacuum cleaner.
    According to a characteristic of the invention, the main part comprises a first wall and the secondary part comprises a second wall and said first and second walls form the secondary evacuation duct.
    In this way it is not necessary to add material to obtain a secondary evacuation duct to not increase the weight or size.
    According to one characteristic of the invention, the hand-held vacuum cleaner comprises a motor which comprises an axis of revolution substantially parallel to the axis of revolution of the central cone of revolution.
    This characteristic has the effect of having a motor that is oriented in the same direction as the circulating air flow which allows not to interfere with said flow and therefore not to have losses.
    According to one characteristic of the invention, the cyclonic separation device comprises an axis of revolution which is substantially perpendicular to the axis of revolution of the cone or the engine.
    This characteristic has the effect of optimizing the compactness of the cyclonic separating device.
    According to a characteristic of the invention, the external outlet of said secondary discharge duct extends at an angle of between 10 ° and 300 ° around the axis of revolution of the cone.
    This characteristic has the effect of adapting the size of the external outlet to the quantity of air expelled.
    According to one characteristic of the invention, the external outlet of said secondary discharge duct forms a surface on the main body of between 5 and 20 cm 2 and preferably 16 cm 2.
    According to one characteristic of the invention, the vacuum cleaner comprises a screen at the outlet of the main suction duct so as to divide the flow and to direct a portion of the air flow towards the secondary duct for evacuation of the air and another part to an electronic card so as to cool it.
    According to one characteristic of the invention, an acoustic foam is positioned in the secondary duct for evacuation of air.
    This foam has the effect of further reducing the speed of the air flow and thus reduce the noise. Other features and advantages of the present invention will appear more clearly on reading the following detailed description of an embodiment of the invention given by way of non-limiting example and illustrated by the appended drawings, in which: - Figure 1 shows a perspective view of a handheld vacuum cleaner according to the invention; - Figure 2 shows a sectional view of the handheld vacuum cleaner; - Figure 3 shows an enlargement of a part of Figure 2.
    As can be seen in FIG. 1, a hand-held vacuum cleaner 1 is composed of a main body 2. This main body 2 comprises at one of its ends a main duct 6 for extracting air and at another end a secondary duct 8 evacuation of air. This secondary exhaust duct 8 comprises an external outlet 9. Between these two ducts, the main body 2 encloses suction means 7 generating a flow of air through the main suction duct 6. air and the secondary duct 8 for evacuation of air. In other words, the air is sucked by the main duct 6 of air intake and is rejected by the secondary duct 8 for discharging the air at the outer outlet 9. In an alternative embodiment an acoustic foam (not shown) can be positioned in the secondary duct 8 air evacuation to further reduce the speed of air and therefore the noise.
    A handle 5 is attached to the main body 2. It allows a user to manipulate the vacuum cleaner 1 hand. In the embodiment of the invention, it is located under the main body 2 for good handling, but in other embodiments, not shown, it may be positioned elsewhere on the main body 2 The hand aspirator 1 further comprises a device 4 cyclonic separation of dust. This can be one or more floors and it aims to separate and filter the dust. This cyclonic separation device 4 is attached to the main body 2. It is located below it so as to be perpendicular and aeraulically connected to the main suction duct 6. The cyclonic separation device 4 is arranged in a revolution around an axis of revolution Δ3. The axis of revolution Δ3 is substantially perpendicular to the main suction duct 6, as can be seen in FIG. 1. The cyclonic separation device 4 is in one stage.
    In another embodiment, not shown, it can be two stages.
    As shown in Figure 2, the suction means 7 are composed of a motor 7. This motor 7 is positioned around and along an axis of revolution Δ2. The axis of revolution Δ2 of the engine is substantially in the length of the main body 2 so that the motor is oriented in the direction of travel of the air flow. In the context of the invention, this motor 7 is an electronically commutated motor (ECM).
    More particularly and as can be seen in FIG. 2, the main body 2 is composed of at least one main portion 12 and a secondary portion 13.
    The main part 12 comprises a portion 14 which is downward, that is to say which tilts inwards or the center of the main body 2. This portion 14, like the main part 12, is at least partly substantially as in Figure 1. In other words, this portion stretches at least at an angle between 10 ° and 300 ° around the axis of revolution Δ2.
    This portion 14 is positioned under the secondary portion 13. The secondary portion 13 comprises a cone 15 which has a revolution along an axis of revolution Δ1. The axis of revolution Δ1 is substantially parallel to the axis of revolution Δ2 of the motor 7 so that the cone 15 is positioned in the center of the secondary portion 13. This cone 15 will be called cone 15 of central revolution thereafter. The top of the cone 15 is directed towards the inside of the main body 2. In this way, the cone 15 is positioned at least partly inside and in the center of the portion 14 of the main part 12.
    In this way, the main part 12 and the secondary part 13 form the secondary duct 8 for evacuating the air towards the outer outlet 9. For this purpose the main part 12 (including the portion 14) comprises a first wall 16 which corresponds to the surface of the secondary duct 8 of air evacuation on which the air comes to rest in order to exit. In the same way, the secondary part 13 comprises a second wall 17 which corresponds to the surface of the secondary air evacuation duct 8 on which the air which is to be evacuated also bears. It is more precisely these walls which form the secondary duct 8 for evacuation of the air. This comprises a passage 10 which forms a fold 11 at an angle α between 120 ° and 200 °. This fold 11 forms a baffle which forces the air, which passes through the secondary exhaust duct 8, to make a substantially complete turn, that is to say a turn (or baffle) at an angle of between 120.degree. ° and 200 °. In the context of the invention, this turn occurs around an axis of trajectory A. This axis of trajectory A is directed along the portion 14 of the main portion 12, as can be seen in FIG. this turn is to increase the surface of the walls in contact with the air flow and thus to increase the friction of the air with the walls which slows down the speed of the air. Then the idle air arrives via the secondary air outlet duct 8 at the outer outlet 9. This outer outlet 9 corresponds to a gap formed between the main portion 12 and the secondary portion 13 along the periphery of the main body 2. The separation between the two parts is on average 1 cm. It can also be narrower or wider.
    In connection with FIGS. 1 and 2, the external outlet 9 of said secondary discharge duct 8 extends at an angle of between 10 ° and 300 ° around the axis of revolution Δ2.
    As can be seen in FIG. 3 or in FIG. 1, the outer outlet 9 forms a plane P. Said plane P corresponds to a plane P tangent to the main body 2 and is positioned between the outer ends of the walls of the secondary discharge duct 8 at the outer outlet 9. The plane P and the secondary discharge duct 8 form between them an angle β which is between 80 and 90 ° so that the air operates a perpendicular turn in the duct 8 secondary evacuation. In this way, the air flow exits substantially perpendicular to the main body 2, which makes it possible to direct the flow in a direction other than towards the user.
    In the context of the invention, the outer outlet 9 of said secondary discharge duct 8 extends along the main body 2. It extends around the axis of revolution Δ1 of the cone 15 at an angle of between 10 ° and 300 °. In the context of the invention, the outer outlet 9 extends at an angle of 300 ° around the axis of revolution Δ1 and the surface occupied by the outer outlet 9 is 16 cm 2.
    In order to control the motor 7, the hand-held vacuum cleaner 1 comprises an electronic card 19 which is positioned in the main body 2. The hand-held vacuum cleaner 1 further comprises a screen 18 at the outlet of the main suction duct 6. This is used to divide the air flow and to direct a portion of the air flow to the secondary air duct 8 and another part to the electronic card 19 so as to cool it. By way of example, the part of the air flow incident on the electronic card 19 has a speed of between 6 and 15 m.sup.-1, which makes it possible to cool the components that are most sensitive to temperature constraints.
    It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the embodiment of the invention described in the present description without departing from the scope of the invention defined by the appended claims.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    A hand vacuum cleaner (1) comprising: - a main body (2) comprising a handle (5) for gripping and a duct (6) main air suction; - Suction means (7) generating a flow of air through the main air intake duct (6); a device (4) for cyclonic dust separation with one or two stages, connected aeraulically to the main suction duct (6); - a duct (8) secondary air evacuation comprising an outer outlet (9); characterized in that the secondary duct (8) for evacuation of air comprises at least one passage (10) in which said duct (8) forms a secondary fold (11) at an angle of between 120 ° and 200 ° and preferably 180 ° along an axis of trajectory (A).
    [2" id="c-fr-0002]
    2. Vacuum cleaner (1) hand according to the preceding claim characterized in that the duct (8) secondary discharge air forms with the outer outlet (9) an angle between 80 and 90 °.
    [3" id="c-fr-0003]
    3. Vacuum cleaner (1) hand according to one of the preceding claims characterized in that the main body (2) comprises at least a main portion (12) and a secondary portion (13) and said main portion (12) comprises a portion (14) which is positioned under said secondary portion (13) and said secondary portion (13) comprises a cone (15) of central revolution along an axis of revolution (Λ1) directed towards the inside of the main body (2) and which is positioned at least partially below the portion (14) of the main portion (12).
    [4" id="c-fr-0004]
    4. Vacuum cleaner (1) hand according to the preceding claim, characterized in that the main part (12) comprises a first wall (16) and the secondary portion (13) comprises a second wall (17) and said first and second walls form the secondary discharge duct (8).
    [5" id="c-fr-0005]
    5. Vacuum cleaner (1) hand according to the preceding claim, characterized in that it comprises a motor (7) which comprises an axis of revolution (Λ2) substantially parallel to the axis of revolution (Δ1) of the cone (15) of central revolution.
    [6" id="c-fr-0006]
    6. Vacuum cleaner (1) hand according to the preceding claim, characterized in that the device (4) cyclonic separation comprises an axis of revolution (Δ3) which is substantially perpendicular to the axis of revolution (Δ1) of the cone or the engine.
    [7" id="c-fr-0007]
    7. Vacuum cleaner (1) hand according to one of claims 3 to 6, characterized in that the outer outlet (9) of said duct (8) secondary evacuation stretches at an angle between 10 ° and 300 ° around the axis of revolution (Δ1) of the cone.
    [8" id="c-fr-0008]
    8. Vacuum cleaner (1) hand according to one of the preceding claims, characterized in that the outer outlet (9) of said duct (8) secondary discharge forms a surface on the main body (2) between 5 and 20 cm 2 and preferably 16 cm 2.
    [9" id="c-fr-0009]
    9. Vacuum cleaner (1) hand according to one of the preceding claims, characterized in that it comprises a screen (18) at the output of the duct (6) main suction so as to divide the flow and to guide a part air flow to the secondary duct (8) for evacuation of air and another part to an electronic card (19) so as to cool it.
    [10" id="c-fr-0010]
    10. Vacuum cleaner (1) hand according to one of the preceding claims characterized in that an acoustic foam is positioned in the duct (8) secondary exhaust air.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN106901651B|2021-09-17|
    CN206979439U|2018-02-09|
    WO2017109360A1|2017-06-29|
    ES2869950T3|2021-10-26|
    EP3184011A1|2017-06-28|
    CN106901651A|2017-06-30|
    FR3046046B1|2017-12-22|
    KR20180093062A|2018-08-20|
    EP3184011B1|2021-04-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    DE3027701A1|1980-07-22|1982-02-11|Progress-Elektrogeräte Mauz & Pfeiffer GmbH & Co, 7000 Stuttgart|Vacuum cleaner with quiet running fan - has air duct running lengthwise to spread out air flow evenly over machine casing length|
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    WO2010136886A1|2009-05-28|2010-12-02|De' Longhi Appliances Srl Con Unico Socio|Suction apparatus for domestic cleaning|
    JP2776735B2|1993-12-27|1998-07-16|松下精工株式会社|Induced ventilation|
    EP1266501B1|2000-03-24|2004-09-01|Nilfisk-Advance A/S|A silencer for an air flow generator|
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    FR3046046B1|2015-12-23|2017-12-22|Seb Sa|GEOMETRY OF AERAULIC CIRCUIT FOR A HAND VACUUM|FR3046046B1|2015-12-23|2017-12-22|Seb Sa|GEOMETRY OF AERAULIC CIRCUIT FOR A HAND VACUUM|
    KR102095103B1|2018-04-05|2020-03-30|구병회|Vacuum cleaner|
    CN108903781A|2018-08-29|2018-11-30|珠海格力电器股份有限公司|A kind of hand held cleaner|
    CN109199218B|2018-09-28|2021-06-25|江苏美的清洁电器股份有限公司|Cleaning device and silencing device for cleaning device|
    CN112205921B|2019-07-09|2021-11-12|江苏美的清洁电器股份有限公司|Vacuum cleaner|
    法律状态:
    2016-12-29| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-30| PLSC| Publication of the preliminary search report|Effective date: 20170630 |
    2018-01-02| PLFP| Fee payment|Year of fee payment: 3 |
    2019-12-30| PLFP| Fee payment|Year of fee payment: 5 |
    2020-12-28| PLFP| Fee payment|Year of fee payment: 6 |
    2021-12-30| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1563160A|FR3046046B1|2015-12-23|2015-12-23|GEOMETRY OF AERAULIC CIRCUIT FOR A HAND VACUUM|FR1563160A| FR3046046B1|2015-12-23|2015-12-23|GEOMETRY OF AERAULIC CIRCUIT FOR A HAND VACUUM|
    EP16204881.3A| EP3184011B1|2015-12-23|2016-12-16|Geometry of an air-driven circuit for a hand-held vacuum cleaner|
    PCT/FR2016/053530| WO2017109360A1|2015-12-23|2016-12-16|Geometry of an aeraulic circuit for a hand-held vacuum|
    ES16204881T| ES2869950T3|2015-12-23|2016-12-16|Geometry of an aerolic circuit for a handheld vacuum cleaner|
    KR1020187020466A| KR20180093062A|2015-12-23|2016-12-16|Geometric structure of pneumatic energy transfer circuit for handheld vacuum cleaners|
    CN201611174972.8A| CN106901651B|2015-12-23|2016-12-19|Geometry of pneumatic circuit for hand-held cleaner|
    CN201621391824.7U| CN206979439U|2015-12-23|2016-12-19|Geometry for the pneumatic circuit of hand-held cleaners|
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