• 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 indoor air purifier comprising a frame housing (1); inside the frame housing a fan (2) rotated with an electric motor and at least one filter (3, 4, 5); in the frame housing an entrance opening (6) and an outlet opening (7) for air; the fan being arranged to generate an air flow from the inlet opening via the filter to the outlet opening. In accordance with the invention, an active sound attenuation has been provided within the frame housing (1) in the air flow between the input port and the output port.
    公开号:FI20175548A1
    申请号:FI20175548
    申请日:2017-06-13
    公开日:2018-12-14
    发明作者:Jukka Haapanen；Ari Piispanen
    申请人:Uniqair Oy；
    IPC主号:
    专利说明:

    INDOOR
    CLEANER
    FIELD OF THE INVENTION
    The invention relates to an indoor air purifier according to the preamble of claim 1.
    BACKGROUND OF THE INVENTION
    Recently, there has been a growing awareness of the air quality of different buildings and the necessary quality requirements10. Increasingly, people are symptomatic of schools, kindergartens, offices and other public spaces, and are attributed to air pollutants such as mold, dust, pollen and even radon. The problems may be due to high personal hypersensitivity to certain substances or general structural defects and damage to the available space. In any case, finding out the causes and repairing the structures does not happen in an instant, but is easily a matter of years.
    to use temporary
    As a result, it is often evasive.
    have to be
    20175548 prh 13 -06- 2017
    Permanent or temporary solutions to these problems have been provided by a variety of efficient air purifiers, which are separate and detached from the structures and can thus be quickly deployed, that is, simply raised to the floor of the required space and plugged into a wall outlet. The air cleaner is formed by a housing-like structure containing one or more different filters and a fan that causes air to flow from the space to be cleaned through the filters and back into the space clean. The degree of purity depends on the type, quality and quantity of filters used. At least certain air purifiers with activated carbon filters work well, removing almost 35 of the air, for example. spores and radon.
    As more and more power is sought for air purifiers, i.e. larger and faster airflows, it is necessary to increase the equipment and equip it with larger fans. This increases both the motor noises generated by the rotation of the fan 5 and the airflow generated by the flow resistance of the structures. Thus, as efficiency increases, their disadvantages also increase, as the constant and steady hum and noise of the air are in many cases quite disturbing in otherwise peaceful and quiet environments such as classrooms and offices.
    PURPOSE OF THE INVENTION
    It is an object of the invention to overcome the above-mentioned drawbacks of the prior art. In particular, it is an object of the invention to provide a novel type of indoor air purifier that is compact and light, i.e., easy to transport and move, yet effective and so quiet that it can operate in almost all areas with virtually no land.
    20175548 prh 13 -06- 2017
    SUMMARY OF THE INVENTION
    The indoor air purifier according to the invention includes a frame housing which is, for example, a suitable wood board. The frame25 casing shape is freely selectable for the interior to be used, although a rectangular parallelepiped is the most economically advantageous in most cases. Inside the housing there is a fan and an electric motor rotating it and at least one filter. Further, the housing has an air inlet and an outlet, wherein the fan is arranged to provide air flow from the inlet to the outlet through the filter, i.e. to suck air from the inlet into the housing and blow the dewatered air out through the outlet. According to the invention, the inlet opening and the inside of the housing
    20175548 prh 13 -06- 2017 The airflow between the outflow opening is provided with active silencing.
    In one embodiment of the invention, the housing 5 includes two active sound attenuators, one located before the fan and the other after the fan. Preferably, the active sound attenuation comprises a microphone arranged to detect the presence of air in the air stream and a loudspeaker to form a compensated counter-sound.
    In this way, active noise cancellation modifies the continuously evolving noises based on the sounds generated by the air purifier.
    In one embodiment of the invention, the purifier includes an activated carbon filter, for example before the fan, and furthermore a HEPA filter, for example, after the fan. More preferably, a pre-filter is provided between the inlet port and the activated carbon filter to remove larger airborne contaminants such as debris, insects and pollen.
    In one embodiment of the invention, a microphone and a corresponding loudspeaker are disposed across the filter for airflow through the cleaner. In another embodiment of the invention, the microphone and the corresponding loudspeaker are disposed substantially adjacent to one another in a stream of air passing through the purifier. Thus, for example, the microphone and speaker may be in the immediate vicinity of the fan 30 before and / or after.
    In one embodiment of the invention, the control of the microphone and the corresponding speaker is provided with a delay which is proportional to the distance between the microphone and the speaker. In this way, the sound observed at a certain location fades
    20175548 prh 13 -06- 2017 will be played elsewhere when the sound arrives there.
    BENEFITS OF THE INVENTION
    The indoor air purifier of the invention has significant advantages over the prior art. The indoor air purifier of the invention enables virtually silent air purification. In addition, when the purifier itself can be integrated as part of the furnishings of the 10 treatment rooms, the invention allows for an unobtrusive and undisturbed air purification of the filler. All you notice is that the room is clean and fresh.
    BRIEF DESCRIPTION OF THE DRAWINGS
    In the following, the invention will be described in detail with reference to the accompanying drawing, which schematically shows an air purifier according to the invention.
    DETAILED DESCRIPTION OF THE INVENTION
    An air purifier according to the invention shown in the figure includes a rectangular parallelepiped body housing 1 which is set upright on a lat25. The fan 2 is in its state between the horizontal lower partition wall 11 and the upper partition wall 12, whereby the fan can suck air through the opening 13 in the upper partition wall and blow it down below the lower partition wall.
    An inlet port 6 is provided at the top of the housing 1 and an outlet 7 at the bottom thereof is provided. Thus, when the fan is operating, the air flow circulates through the interior of the housing. Further, immediately after the inlet port 6, there is a first filter, i.e. a prefilter 5, and thereafter an active carbon filter 3 having a cylindrical jacket, after the fan 2, in this embodiment there is still a HEPA filter. Thus, the air aspirated from the inlet port 6 by the fan 2 passes through three different filters before returning to the outside air space of the purifier through the outlet port 7.
    The purifier is provided with two active silencers inside its housing. The first of these is arranged before the fan so that near the inlet opening 6 there is a microphone 8, which is used to attenuate the sound in the area, which is mainly the sound of the fan and its motor.
    The microphone is then coupled, via appropriate control electronics, to a space in front of the fan in a speaker 20 9 located downstream of the activated carbon filter, which is used to apply a sound compensating sound detected by the microphone.
    20175548 prh 13 -06- 2017
    Similarly, immediately after the fan 2, another speaker 9 is disposed, with a corresponding microphone 8 positioned below the HEPA filter near the outlet port 7. the sound waves coming out of the openings are compensated and the cleaner becomes virtually silent
    The invention has been described above by way of example only with reference to the accompanying drawings, but various embodiments of the invention are possible within the scope of the claims.
    权利要求:
    Claims (11)
    [1]
    An indoor air cleaner comprising a housing (1); electric motor driven rotary screw housing
    5 halls (2) and at least one filter (3,4,5); an air inlet (6) and an outlet (7) in the housing; wherein the fan is arranged to provide an airflow from the inlet port through the filter to the outlet port, characterized in that an active sound attenuation is provided in the airflow between the inlet port and the outlet port inside the housing (1).
    [2]
    An indoor air cleaner according to claim 1,
    15, characterized in that the housing (1) includes two active sound attenuators, one before and one after the fan (2).
    [3]
    Indoor air speaker according to Claim 1 or 2, characterized in that the active sound attenuation comprises a sound detecting device and a compensating counter-loudspeaker (9) for generating the detected sound.
    Purifier according to one of the claims, characterized in that according to com1-3, the purifier is equipped with an activated carbon filter (3) and a HEPA filter (3).
    [4]
    4).
    [5]
    An indoor air cleaner according to claim 4,
    30 characterized in that a pre-filter (5) is provided between the inlet port (6) and the active filter (3).
    [6]
    Indoor air cleaner according to one of Claims 3 to 5, characterized in that the microphone (8) and
    35 a corresponding speaker (9) is disposed across the filter (3,4,5) for air flow through the purifier.
    [7]
    The indoor air according to any one of claims 3 to 5
    5 purifier, characterized in that the microphone (
    [8]
    8) and corresponding speaker (
    [9]
    9) are positioned substantially adjacent to one another in the air flow through the purifier.
    [10]
    8. An indoor air cleaner according to claim 7, characterized in that the microphone (8) and the speaker (9) are in the immediate vicinity of the fan before and / or after.
    [11]
    Indoor air purifier according to one of Claims 3 to 8, characterized in that the control of the microphone and the corresponding loudspeaker is provided with a delay proportional to the distance between the microphone and the loudspeaker.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN110741209A|2020-01-31|
    FI129173B|2021-08-31|
    EP3638958A1|2020-04-22|
    EP3638958A4|2021-03-24|
    WO2018229330A1|2018-12-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2896284B2|1993-02-04|1999-05-31|株式会社東芝|Active noise control system for elevator car ventilation duct|
    WO2008090544A2|2007-01-22|2008-07-31|Silentium Ltd.|Quiet fan incorporating active noise control |
    BR112015011999A2|2012-11-27|2017-07-11|Koninklijke Philips Nv|air purification apparatus|
    US9445184B2|2013-12-03|2016-09-13|Bose Corporation|Active noise reduction headphone|
    CN104790838B|2015-02-06|2017-02-22|武汉理工大学|Sound insulation purification window|
    CN104848432A|2015-05-29|2015-08-19|东南大学|Air purifier with active noise reduction device|
    CN205299772U|2016-01-26|2016-06-08|苏州清听声学科技有限公司|Active noise reduction air purifier|
    CN106016525B|2016-07-06|2021-11-23|殷晓冬|Multifunctional fresh air purifying integrated machine|
    CN106782488A|2016-08-20|2017-05-31|中声科技（北京）有限公司|The washing machine that a kind of active abates the noise|KR20210145516A|2020-05-25|2021-12-02|엘지전자 주식회사|Portable air caring apparatus|
    CN112797557A|2021-01-15|2021-05-14|珠海格力电器股份有限公司|Purification equipment|
    法律状态:
    2021-08-18| PC| Transfer of assignment of patent|Owner name: UNIQAIR OY |
    2021-08-31| FG| Patent granted|Ref document number: 129173 Country of ref document: FI Kind code of ref document: B |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20175548A|FI129173B|2017-06-13|2017-06-13|Indoor air purifier|FI20175548A| FI129173B|2017-06-13|2017-06-13|Indoor air purifier|
    CN201880039457.XA| CN110741209A|2017-06-13|2018-06-11|Indoor air purifier|
    EP18818897.3A| EP3638958A4|2017-06-13|2018-06-11|Indoor air purifier|
    PCT/FI2018/050436| WO2018229330A1|2017-06-13|2018-06-11|Indoor air purifier|
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