JP3723537B2 - Noise reduction structure for outdoor unit of large air conditioner - Google Patents

Noise reduction structure for outdoor unit of large air conditioner Download PDF

Info

Publication number
JP3723537B2
JP3723537B2 JP2002292054A JP2002292054A JP3723537B2 JP 3723537 B2 JP3723537 B2 JP 3723537B2 JP 2002292054 A JP2002292054 A JP 2002292054A JP 2002292054 A JP2002292054 A JP 2002292054A JP 3723537 B2 JP3723537 B2 JP 3723537B2
Authority
JP
Japan
Prior art keywords
air conditioner
noise
outdoor unit
compressor
reduction structure
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.)
Expired - Fee Related
Application number
JP2002292054A
Other languages
Japanese (ja)
Other versions
JP2003176935A (en
Inventor
ジン ソブ ソン
ギュ サン チョー
Original Assignee
エルジー電子株式会社
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 エルジー電子株式会社 filed Critical エルジー電子株式会社
Publication of JP2003176935A publication Critical patent/JP2003176935A/en
Application granted granted Critical
Publication of JP3723537B2 publication Critical patent/JP3723537B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/52—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with inlet and outlet arranged on the same side, e.g. for mounting in a wall opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/08—Compressors specially adapted for separate outdoor units
    • F24F1/12—Vibration or noise prevention thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、定速型圧縮機とインバータ圧縮機が内蔵される大型空気調和機の室外機に関し、特に、インバータ圧縮機から発生する騒音の外部への伝達を防止するための大型空気調和機の室外機用騒音低減構造に関する。
【０００２】
【従来の技術】
一般に、大型空気調和機は、室内空気を快適に保持するための装置であって、大きく、室内側送風機および蒸発器などで構成されて室内側に配置される室内機と、室外側送風機、凝縮器および圧縮機などで構成されて室外側に配置される室外機と、から構成される。
【０００３】
図６は、従来の技術による大型空気調和機の室外機を示す斜視図である。
従来の大型空気調和機の室外機は、図６に示すように、吐出口２ａおよび吸込口４ａが各々形成された前面パネル２および背面パネル４と、前記前面パネル２および背面パネル４が上側に設けられる底板６とからなるケース８と；前記前面パネル２の内側に設けられて室外空気を強制送風させる室外側送風ファン１０と；前記背面パネル４の内側に設けられて前記室外側送風ファン１０によって強制送風された室外空気と冷媒を熱交換させる凝縮器１２と；空気調和機の冷房能力を調節できるように、前記凝縮器１２の一側に設けられて冷媒を圧縮させて冷凍サイクルを循環するようにする圧縮部１４と；を含めて構成される。
【０００４】
ここで、前記圧縮部１４は定速運転される定速型圧縮機１４ａと、変速運転されるインバータ圧縮機１４ｂとで構成され、周波数変化にしたがって前記インバータ圧縮機１４ｂの回転速度が変化されながら冷凍サイクルを循環する冷媒の流量を調節することによって冷房能力を可変させる。
つまり、前記インバータ圧縮機１４ｂは、空気調和機の作動と同時に冷房能力にしたがって変速されながら運転し続け、ここにさらに大きい冷房能力が要求されると前記定速型圧縮機１４ａが運転される。
【０００５】
ここで、前記インバータ圧縮機１４ｂは、入力周波数の大ききさに比例して高速回転することによって循環される冷媒量を増加させて冷房能力を有効に調節することができる。
また、参照符号１６は、前記室外側送風ファンを回転させるモータを固定させるように凝縮器に取り付けられたモータマウントであり、１８は、前記ケース内部において圧縮機の設けられる空間と凝縮器の設けられる空間とを区切る隔壁である。
【０００６】
以下、このように構成された従来技術の動作を説明する。
電源が印加され、比較的低い冷房能力を要求する信号がインバータ圧縮機１４ｂに入力されると、前記インバータ圧縮機１４ｂは低速運転して冷凍サイクルを循環する冷媒流量を小さくする。
ここにより大きい冷房能力を要求する信号が前記インバータ圧縮機１４ｂに入力されると、前記インバータ圧縮機１４ｂは、運転速度を速くして冷凍サイクルを循環する冷媒の流量を増加させる。
【０００７】
続いて、より一層大きい冷房能力を要求する信号が前記インバータ圧縮機１４ｂに入力されて前記インバータ圧縮機１４ｂに過負荷がかかると、前記インバータ圧縮機１４ｂとともに定速型圧縮機２ａも運転されて冷凍サイクルを循環する冷媒流量はさらに増加するようになる。
しかし、このように構成された大型空気調和機の室外機において、前記インバータ圧縮機１４ｂは入力周波数の変化によって回転速度が変わるため、冷媒圧力による脈動および構造的振動によって騒音が発生することになる。
【０００８】
ところで、従来技術による大型空気調和機の室外機に備えられるインバータ圧縮機は、冷蔵庫に備えられるインバータ圧縮機のように機械室などの別の空間に配設されるのではなく、前記ケース(図示せず)内の隔壁によって区切られた空間に配設されるので、インバータ圧縮機１４ｂの作動中に発生する騒音が外部に放射され易いという問題点があった。
【０００９】
【発明が解決しようとする課題】
本発明は、前記従来技術の問題点に鑑みてなされたものであり、インバータ圧縮機内蔵の大型空気調和機の室外機においてインバータ圧縮機によって発生する騒音がケースを通じて外部に伝達されるのを防止するための大型空気調和機の室外機用騒音低減構造を提供することにその目的がある。
【００１０】
【課題を解決するための手段】
本発明は、前記目的を達成するために、本発明による大型空気調和機の室外機用騒音低減構造は、冷媒が冷凍サイクルを循環するように冷媒を圧縮する圧縮機の備えられた大型空気調和機の室外機において、前記圧縮機から放射される騒音が外部に伝達されるのを防止するために屈曲部の形成された騒音防止部が前記圧縮機を包むように設けられることを特徴とする。
【００１１】
【発明の実施の形態】
以下、本発明の好ましい実施形態を添付図面を参照しつつ詳細に説明する。
図１は、本発明による大型空気調和機の室外機用騒音低減構造を示す図であり、図２は、図１のＡ−Ａ線による断面図であり、図３は、図１のＢ−Ｂ線による断面図である。そして、図４は、本発明による他の大型空気調和機の室外機用騒音低減構造を示す図で、図５は、図４のＣ−Ｃ線による断面図である。
【００１２】
前記本発明による大型空気調和機の室外機用騒音低減構造は、図１および図４に示すように、吐出口５２ａおよび吸込口５４ａが各々形成された前面パネル５２および背面パネル５４と、前記前面パネル５２および背面パネル５４が上側に取り付けられる底板５６とからなるケース５８と；前記ケース５８の内側に室外空気を強制送風させる室外側送風ファン６０と；前記背面パネル５４の内側に配設されて前記室外側送風ファン６０によって送風された室外空気と冷媒を熱交換させる凝縮器６２と；前記凝縮器６２の一側に配設されて冷媒を圧縮して冷房能力にしたがって冷凍サイクルを循環する冷媒流量を調節するように定速運転される定速型圧縮機６４ａおよび変速運転されるインバータ圧縮機６４ｂと；前記インバータ圧縮機６４ｂを包むように設けられて前記インバータ圧縮機６４ｂから放射される騒音が外部に伝達されるのを防止する、屈曲部７２、７４の形成された騒音防止部７０と；から構成される。
【００１３】
ここで、前記騒音防止部７０の内側面には、前記定速型圧縮機６４ａの外周を包むように設けられる不織布またはフォームなどの多孔性材質の吸音材(図示せず)とゴムおよび金属材質の遮音材(図示せず)とが積層されてなる吸遮音材(図示せず)がさらに設けられる。
ここで、前記インバータ圧縮機６４ｂは、空気調和機が作動されると同時に冷房能力にしたがって変速されながら運転し続け、ここにより大きい冷房能力が要求されると前記定速型圧縮機６４ａも運転される。
【００１４】
特に、前記インバータ圧縮機６４ｂは入力周波数にしたがって回転速度が変ることから作動中冷媒圧力による脈動および構造的振動によって騒音が比較的多く発生する。したがって、実験を通じて前記インバータ圧縮機６４ｂの騒音放射特性を調査し、騒音が集中的に放射される方向の騒音防止部７０の一側面に前記屈曲部７２、７４を形成する。
【００１５】
ここで、前記インバータ圧縮機６４ｂから発生する騒音は一種の音波形態なので、その騒音は、前記騒音防止部７０に形成された屈曲部７２、７４によって前記騒音防止部７０に垂直に入射されずに前記騒音防止部７０の内側に再び反射される。
なお、騒音防止効果をさらに高めるために、前記騒音防止部７０の内側面には前記インバータ圧縮機６４ｂから発生する騒音を吸収および遮断する吸遮音材７６が設けられるが、これは、前記屈曲部７２、７４の形成された部分を除いた前記騒音防止部７０の内側面に設けられる。
【００１６】
ここで、前記吸遮音材７６は、図２に示すように、フェルトまたは繊維糸材質、フォーム材質のように体積あたり空気含有量の極めて大きい多孔性材質からなる吸音材７６ａと、ゴムまたは金属材質からなって前記吸音材７６ａに積層される遮音材７６ｂとから構成される。
具体的に、前記騒音防止部７０に形成された屈曲部７２は、図３に示すように、前記騒音防止部７０の一側面に上下に一定間隔ｈをおいて半円状の断面形状を有するように突出されている。
【００１７】
また、前記騒音防止部７０に形成された他の形態の屈曲部７４は、図５に示すように、前記騒音防止部７０の一側面に上下に一定間隔ｈをおいて１／４円の断面形状を有するように突出して形成されてもよい。
この屈曲部７４は、前記インバータ圧縮機６４ｂから発生する熱を放出させるために下端部分に通風口７４ａが形成される。
【００１８】
また、前記インバータ圧縮機６４ｂから発生する熱が多い場合には前記騒音防止部７０の上面を開き、前記インバータ圧縮機６４ｂの上面に室外側送風ファン６０が取り付けられるようにして前記インバータ圧縮機６４ｂから発生する熱を放出させてもよい。
【００１９】
このように構成された本発明の動作を説明すると、以下のようである。
電源の印加によってインバータ圧縮機６４ｂが作動すると、冷房能力にしたがって回転速度が変わりながら冷凍サイクルを循環する冷媒流量が調節されるため、インバータ圧縮機６４ｂからは騒音が発生することになる。
しかし、前記インバータ圧縮機６４ｂから発生する騒音は、吸遮音材７６によって一部は吸収または低減され、前記インバータ圧縮機６４ｂを包んでいる騒音防止部７０によって外部への伝達がさらに遮断される。
【００２０】
また、騒音は、前記騒音防止部７０に形成された屈曲部７２、７４に垂直に入射されずに傾いて入射されるため、再び前記騒音防止部７０内に反射され、外部に伝達されなくなる。
一方、前記インバータ圧縮機６４ｂから発生する熱は、前記騒音防止部７０の屈曲部７４に形成された通風口７４ａから放出される。
【００２１】
【発明の効果】
このように構成された本発明による大型空気調和機の騒音低減構造は、インバータ圧縮機から発生する騒音が外部に伝達されないように屈曲部の形成された騒音防止部をインバータ圧縮機の外周を包むように設けるため、インバータ圧縮機から発生する騒音は、騒音防止部内に再び反射されて外部に伝達されるのが防止され、騒音公害の低減と製品性能の向上に寄与できる。
【図面の簡単な説明】
【図１】本発明による大型空気調和機の室外機用騒音低減構造を示す図である。
【図２】図１のＡ−Ａ線による断面図である。
【図３】図１のＢ−Ｂ線による断面図である。
【図４】本発明による他の大型空気調和機の室外機用騒音低減構造を示す図である。
【図５】図４のＣ−Ｃ線による断面図である。
【図６】従来の技術による大型空気調和機の室外機を示す図である。
【符号の説明】
６４ａ…定速型圧縮機
６４ｂ…インバータ圧縮機
７０…騒音防止部
７２、７４…屈曲部
７４ａ…通風口[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outdoor unit of a large air conditioner in which a constant speed compressor and an inverter compressor are built, and in particular, a large air conditioner for preventing transmission of noise generated from an inverter compressor to the outside. The present invention relates to a noise reduction structure for an outdoor unit.
[0002]
[Prior art]
In general, a large-sized air conditioner is a device for comfortably holding indoor air, and is a large indoor air conditioner configured by an indoor fan and an evaporator and disposed on the indoor side, an outdoor fan, and a condenser. And an outdoor unit that is configured on the outdoor side.
[0003]
FIG. 6 is a perspective view showing an outdoor unit of a large-sized air conditioner according to a conventional technique.
As shown in FIG. 6, the conventional outdoor unit of a large air conditioner has a front panel 2 and a back panel 4 in which a discharge port 2a and a suction port 4a are respectively formed, and the front panel 2 and the back panel 4 are on the upper side. A case 8 comprising a bottom plate 6 provided; an outdoor fan 10 provided inside the front panel 2 for forcibly blowing outdoor air; and an outdoor fan 10 provided inside the back panel 4 A condenser 12 that exchanges heat between the outdoor air forcedly blown by the refrigerant and the refrigerant; and is provided on one side of the condenser 12 to compress the refrigerant and circulate in the refrigeration cycle so that the cooling capacity of the air conditioner can be adjusted. And a compression unit 14 configured to be configured.
[0004]
Here, the compressor 14 is composed of a constant speed compressor 14a operated at a constant speed and an inverter compressor 14b operated at a variable speed, and the rotational speed of the inverter compressor 14b is changed according to the frequency change. The cooling capacity is varied by adjusting the flow rate of the refrigerant circulating in the refrigeration cycle.
That is, the inverter compressor 14b continues to operate while being shifted according to the cooling capacity simultaneously with the operation of the air conditioner, and the constant speed compressor 14a is operated when a larger cooling capacity is required.
[0005]
Here, the inverter compressor 14b can effectively adjust the cooling capacity by increasing the amount of refrigerant circulated by rotating at high speed in proportion to the magnitude of the input frequency.
Reference numeral 16 denotes a motor mount attached to the condenser so as to fix a motor that rotates the outdoor blower fan, and 18 denotes a space in which the compressor is provided in the case and an installation of the condenser. It is a partition partitioning the space to be created.
[0006]
Hereinafter, the operation of the prior art configured as described above will be described.
When power is applied and a signal requiring a relatively low cooling capacity is input to the inverter compressor 14b, the inverter compressor 14b operates at a low speed to reduce the refrigerant flow rate circulating in the refrigeration cycle.
When a signal requesting a larger cooling capacity is input to the inverter compressor 14b, the inverter compressor 14b increases the flow rate of the refrigerant circulating in the refrigeration cycle by increasing the operation speed.
[0007]
Subsequently, when a signal requesting a larger cooling capacity is input to the inverter compressor 14b and the inverter compressor 14b is overloaded, the constant speed compressor 2a is also operated together with the inverter compressor 14b. The refrigerant flow rate circulating in the refrigeration cycle further increases.
However, in the outdoor unit of the large-sized air conditioner configured as described above, the inverter compressor 14b changes its rotational speed according to the change of the input frequency, so that noise is generated due to pulsation and structural vibration caused by the refrigerant pressure. .
[0008]
By the way, the inverter compressor provided in the outdoor unit of the large-scale air conditioner according to the prior art is not disposed in another space such as a machine room like the inverter compressor provided in the refrigerator, but the case (FIG. The noise generated during the operation of the inverter compressor 14b is likely to be radiated to the outside.
[0009]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described problems of the prior art, and prevents noise generated by the inverter compressor from being transmitted to the outside through the case in an outdoor unit of a large air conditioner with a built-in inverter compressor. An object of the present invention is to provide a noise reduction structure for an outdoor unit of a large air conditioner.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a large air conditioner outdoor unit noise reduction structure according to the present invention, in which a compressor for compressing a refrigerant so that the refrigerant circulates in a refrigeration cycle is provided. In the outdoor unit of the machine, a noise preventing part having a bent part is provided so as to wrap the compressor in order to prevent noise radiated from the compressor from being transmitted to the outside.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a view showing a noise reduction structure for an outdoor unit of a large air conditioner according to the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. It is sectional drawing by a B line. And FIG. 4 is a figure which shows the noise reduction structure for the outdoor units of the other large sized air conditioner by this invention, FIG. 5 is sectional drawing by CC line of FIG.
[0012]
As shown in FIGS. 1 and 4, the noise reduction structure for an outdoor unit of a large air conditioner according to the present invention includes a front panel 52 and a rear panel 54 each having a discharge port 52a and a suction port 54a, and the front panel. A case 58 including a panel 52 and a bottom plate 56 to which the back panel 54 is attached; an outdoor fan 60 for forcibly blowing outdoor air inside the case 58; and a case 58 disposed inside the back panel 54. A condenser 62 that exchanges heat between the outdoor air blown by the outdoor blower fan 60 and the refrigerant; a refrigerant that is disposed on one side of the condenser 62 and compresses the refrigerant to circulate in the refrigeration cycle according to the cooling capacity. A constant speed compressor 64a operated at a constant speed so as to adjust a flow rate, and an inverter compressor 64b operated at a variable speed; the inverter compressor 64b; Comprised; provided as wrap to prevent the noise emitted is transmitted to the outside from the inverter compressor 64b, a noise preventing part 70 formed of the bent portions 72, 74.
[0013]
Here, on the inner side surface of the noise prevention unit 70, a sound absorbing material (not shown) made of a porous material such as a nonwoven fabric or foam provided so as to wrap the outer periphery of the constant speed compressor 64a, rubber, and a metal material. A sound absorbing and insulating material (not shown) formed by laminating a sound insulating material (not shown) is further provided.
Here, the inverter compressor 64b continues to operate while being shifted according to the cooling capacity at the same time as the air conditioner is operated, and when the larger cooling capacity is required, the constant speed compressor 64a is also operated. The
[0014]
In particular, since the rotation speed of the inverter compressor 64b varies according to the input frequency, a relatively large amount of noise is generated due to pulsation and structural vibration caused by refrigerant pressure during operation. Accordingly, the noise radiation characteristics of the inverter compressor 64b are investigated through experiments, and the bent portions 72 and 74 are formed on one side of the noise prevention unit 70 in a direction in which noise is radiated intensively.
[0015]
Here, since the noise generated from the inverter compressor 64b is a kind of sound wave, the noise is not vertically incident on the noise prevention unit 70 by the bent portions 72 and 74 formed in the noise prevention unit 70. The light is reflected again inside the noise prevention unit 70.
In order to further enhance the noise prevention effect, a sound absorbing and insulating material 76 that absorbs and blocks noise generated from the inverter compressor 64b is provided on the inner surface of the noise preventing portion 70. It is provided on the inner surface of the noise prevention unit 70 excluding the portions where the 72 and 74 are formed.
[0016]
Here, as shown in FIG. 2, the sound-absorbing and insulating material 76 includes a sound-absorbing material 76a made of a porous material having a very large air content per volume such as felt, fiber yarn material, foam material, and rubber or metal material. And a sound insulating material 76b laminated on the sound absorbing material 76a.
Specifically, as shown in FIG. 3, the bent portion 72 formed in the noise prevention unit 70 has a semicircular cross-sectional shape with a certain interval h up and down on one side surface of the noise prevention unit 70. So that it is protruding.
[0017]
Further, as shown in FIG. 5, the bent portion 74 of the other form formed in the noise preventing portion 70 has a quarter-circle cross section with a certain interval h vertically on one side surface of the noise preventing portion 70. It may be formed protruding so as to have a shape.
The bent portion 74 is formed with a vent hole 74a at a lower end portion to release heat generated from the inverter compressor 64b.
[0018]
In addition, when the heat generated from the inverter compressor 64b is large, the upper surface of the noise prevention unit 70 is opened, and the outdoor blower fan 60 is attached to the upper surface of the inverter compressor 64b. The heat generated from the heat may be released.
[0019]
The operation of the present invention configured as described above will be described as follows.
When the inverter compressor 64b is activated by the application of power, the flow rate of the refrigerant circulating through the refrigeration cycle is adjusted while the rotation speed changes according to the cooling capacity, and noise is generated from the inverter compressor 64b.
However, a part of the noise generated from the inverter compressor 64b is absorbed or reduced by the sound absorbing and insulating material 76, and transmission to the outside is further blocked by the noise prevention unit 70 enclosing the inverter compressor 64b.
[0020]
Further, the noise is not incident on the bent portions 72 and 74 formed in the noise prevention unit 70 at an angle, but is incident on the inclination, so that the noise is reflected again in the noise prevention unit 70 and is not transmitted to the outside.
On the other hand, the heat generated from the inverter compressor 64 b is released from the ventilation port 74 a formed in the bent portion 74 of the noise prevention unit 70.
[0021]
【The invention's effect】
The noise reduction structure for a large-scale air conditioner according to the present invention configured as described above wraps the outer periphery of the inverter compressor with a noise prevention portion formed with a bent portion so that noise generated from the inverter compressor is not transmitted to the outside. Therefore, the noise generated from the inverter compressor is prevented from being reflected again in the noise prevention unit and transmitted to the outside, which can contribute to reduction of noise pollution and improvement of product performance.
[Brief description of the drawings]
FIG. 1 is a view showing a noise reduction structure for an outdoor unit of a large air conditioner according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a cross-sectional view taken along line BB in FIG.
FIG. 4 is a view showing a noise reduction structure for an outdoor unit of another large air conditioner according to the present invention.
5 is a cross-sectional view taken along the line CC of FIG.
FIG. 6 is a view showing an outdoor unit of a large air conditioner according to a conventional technique.
[Explanation of symbols]
64a ... Constant speed compressor 64b ... Inverter compressor 70 ... Noise prevention part 72, 74 ... Bending part 74a ... Ventilation opening

Claims (8)

冷凍サイクルを循環する冷媒を圧縮する圧縮機から放射される騒音が外部に伝達されるのを防止するために屈曲部の形成された騒音防止部が前記圧縮機を包むように設けられる空気調和機の室外機用騒音低減構造において、
前記屈曲部は、前記騒音防止部の一側面に上下に一定間隔をおいて１／４円状の断面形状を有するように突出され、前記１／４円形状の下端部分に、前記圧縮機から発生される熱を放出できるように、通風口が形成されることを特徴とする空気調和機の室外機用騒音低減構造。An air conditioner in which a noise prevention portion having a bent portion is provided so as to wrap the compressor in order to prevent noise radiated from a compressor that compresses a refrigerant circulating in a refrigeration cycle from being transmitted to the outside. In the noise reduction structure for outdoor units,
The bent portion protrudes on one side surface of the noise preventing portion so as to have a quarter-circular cross-sectional shape with a certain interval in the vertical direction, and is formed on the lower end portion of the quarter-circular shape from the compressor. A noise reduction structure for an outdoor unit of an air conditioner, characterized in that a vent hole is formed so that the generated heat can be released . 前記圧縮機は、空気調和機の容量を可変させ得るように、定速型圧縮機の一側に配設され、運転速度可変可能なインバータ圧縮機であることを特徴とする請求項１記載の空気調和機の室外機用騒音低減構造。  2. The inverter compressor according to claim 1, wherein the compressor is an inverter compressor that is disposed on one side of a constant-speed compressor so that the capacity of the air conditioner can be varied, and the operation speed can be varied. Noise reduction structure for outdoor unit of air conditioner. 前記騒音防止部は、前記屈曲部を除いた内側面に吸遮音材が設けられることを特徴とする請求項１記載の空気調和機の室外機用騒音低減構造。  2. The noise reduction structure for an outdoor unit of an air conditioner according to claim 1, wherein the noise prevention part is provided with a sound absorbing and insulating material on an inner surface excluding the bent part. 前記吸遮音材は、吸音材と遮音材が積層されてなることを特徴とする請求項３記載の空気調和機の室外機用騒音低減構造。  The noise reducing structure for an outdoor unit of an air conditioner according to claim 3, wherein the sound absorbing and insulating material is formed by laminating a sound absorbing material and a sound insulating material. 前記吸音材は多孔性材質からなることを特徴とする請求項４記載の空気調和機の室外機用騒音低減構造。  The noise reduction structure for an outdoor unit of an air conditioner according to claim 4, wherein the sound absorbing material is made of a porous material. 前記遮音材はゴム材質からなることを特徴とする請求項４記載の空気調和機の室外機用騒音低減構造。  5. The noise reduction structure for an outdoor unit of an air conditioner according to claim 4, wherein the sound insulating material is made of a rubber material. 前記騒音防止部は金属材質からなることを特徴とする請求項１記載の空気調和機の室外機用騒音低減構造。  The noise reduction structure for an outdoor unit of an air conditioner according to claim 1, wherein the noise prevention unit is made of a metal material. 前記屈曲部は、前記圧縮機から騒音が集中的に放射される方向の騒音防止部の一側面に形成されることを特徴とする請求項１記載の空気調和機の室外機用騒音低減構造。  2. The noise reduction structure for an outdoor unit of an air conditioner according to claim 1, wherein the bent portion is formed on one side of a noise prevention portion in a direction in which noise is radiated intensively from the compressor.
JP2002292054A 2001-10-05 2002-10-04 Noise reduction structure for outdoor unit of large air conditioner Expired - Fee Related JP3723537B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2001-061460 2001-10-05
KR10-2001-0061460A KR100420520B1 (en) 2001-10-05 2001-10-05 Air-conditioner

Publications (2)

Publication Number Publication Date
JP2003176935A JP2003176935A (en) 2003-06-27
JP3723537B2 true JP3723537B2 (en) 2005-12-07

Family

ID=19714900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002292054A Expired - Fee Related JP3723537B2 (en) 2001-10-05 2002-10-04 Noise reduction structure for outdoor unit of large air conditioner

Country Status (5)

Country Link
EP (1) EP1300635B1 (en)
JP (1) JP3723537B2 (en)
KR (1) KR100420520B1 (en)
CN (1) CN1211615C (en)
DE (1) DE60233626D1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2879797B1 (en) * 2004-12-20 2007-09-21 Valeo Climatisation Sa DEVICE FOR THE ACOUSTICAL ATTENUATION OF AN AIR FLOW TREATMENT PLANT, AUBES GRID AGENT
KR20070039718A (en) * 2005-10-10 2007-04-13 위니아만도 주식회사 Structure of panel in air-conditioner
KR100765570B1 (en) * 2006-02-08 2007-10-09 엘지전자 주식회사 Outdoor unit for air conditioner
CN100436957C (en) * 2006-08-16 2008-11-26 广东科龙电器股份有限公司 Silencing outdoor machine in reduced running noise
FR2909164B1 (en) * 2006-11-27 2013-09-27 Harmonie Express APPARATUS CONFORMABLY CONTAINING CAPACITY TO COVER AIR CONDITIONERS AND ON THE EXTERNAL SURFACE WHICH MAY APPEAR AT LEAST ONE NAME AND / OR AT LEAST ONE FIGURING SIGN.
KR101936192B1 (en) * 2010-12-29 2019-01-08 엘지전자 주식회사 Outdoor unit for air conditioner
CN102384571A (en) * 2011-09-29 2012-03-21 Tcl空调器（武汉）有限公司 Silencing structure of air-conditioning compressor
BR102012005849A2 (en) 2012-03-15 2013-12-03 Electrolux Do Brasil Sa AIR CONDITIONER WITH VIBRATION BUFFER
KR102010374B1 (en) * 2012-03-20 2019-08-14 웅진코웨이 주식회사 Structure for noise prevention of compensator and dehumidifier having the same
CN102721165A (en) * 2012-07-12 2012-10-10 王桂林 Low-noise high-efficiency mobile type air conditioner
CN104748252A (en) * 2013-12-25 2015-07-01 珠海格力电器股份有限公司 Compressor noise isolating device, air conditioning outdoor unit and air conditioner
CN105020140A (en) * 2014-04-30 2015-11-04 杨永坚 Pump body of vacuum pressure combination pump
CN104048367A (en) * 2014-06-30 2014-09-17 珠海格力电器股份有限公司 Vibration and noise reduction device of compressor
EP3385626B1 (en) * 2015-12-04 2022-10-26 Mitsubishi Electric Corporation Outdoor machine
CN105423445B (en) * 2015-12-25 2018-07-03 广东美的制冷设备有限公司 Compressor assembly, outdoor unit and air conditioner
CN105698283B (en) * 2015-12-25 2019-04-19 广东美的制冷设备有限公司 Compressor assembly, outdoor unit and air conditioner
CN106765677A (en) * 2016-12-27 2017-05-31 珠海格力电器股份有限公司 A kind of noise reducing structure of outdoor and air-conditioner outdoor unit
CN109028349B (en) * 2018-06-15 2021-08-24 青岛海信日立空调系统有限公司 Sound insulation cover, air conditioner outdoor unit and noise reduction method
US20200355240A1 (en) * 2018-11-21 2020-11-12 Nok Corporation Noise reduction structure
JP7019097B2 (en) * 2019-04-03 2022-02-14 三菱電機株式会社 Outdoor unit of air conditioner
CN113494771A (en) * 2021-06-30 2021-10-12 杭州金泰环境科技有限公司 Large-scale air conditioner room system with good noise reduction and sound insulation effects
CN114877420B (en) * 2022-05-24 2023-09-22 湖南中合科技有限公司 Intelligent control independent central air conditioner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0267823U (en) * 1988-07-27 1990-05-23
US5151018A (en) * 1990-07-31 1992-09-29 Copeland Corporation Sound attenuation chamber
JPH0836389A (en) * 1994-07-21 1996-02-06 Sharp Corp Mounting device of compressor
JP2943676B2 (en) * 1995-11-24 1999-08-30 三菱電機株式会社 refrigerator
JPH10148362A (en) * 1996-11-20 1998-06-02 Fujitsu General Ltd Sound absorbing material for air conditioner
KR200154185Y1 (en) * 1996-12-31 1999-08-02 윤종용 Anti-noise apparatus of airconditioner
KR19990017293U (en) * 1997-10-31 1999-05-25 윤종용 Outdoor unit for air conditioner
KR100288872B1 (en) * 1998-01-20 2001-02-12 Samsung Electronics Co Ltd Noise reduction apparatus for air conditioner outdoor unit

Also Published As

Publication number Publication date
CN1414317A (en) 2003-04-30
KR20030028993A (en) 2003-04-11
KR100420520B1 (en) 2004-03-02
DE60233626D1 (en) 2009-10-22
EP1300635B1 (en) 2009-09-09
EP1300635A2 (en) 2003-04-09
EP1300635A3 (en) 2006-11-02
CN1211615C (en) 2005-07-20
JP2003176935A (en) 2003-06-27

Similar Documents

Publication Publication Date Title
JP3723537B2 (en) Noise reduction structure for outdoor unit of large air conditioner
KR100370014B1 (en) structure for decreasing noise of out door unit in air conditioner
KR19990066016A (en) Duct of a window air conditioner
KR20000032363A (en) Sound-absorbing material of air conditioner
KR101419942B1 (en) Air conditioner
US5293758A (en) Outside section for split system air conditioning unit
KR102396084B1 (en) Movable air conditioner
KR20060122351A (en) Thru the wall type air conditioner
KR100304572B1 (en) Structure for reducing noise in air-conditioner outdoor unit
KR100829135B1 (en) Device for prevention of noise in indoor unit of air conditioner
CN212511498U (en) Mobile air conditioner
JPH11287474A (en) Fan casing of window type air conditioner
JPH06272892A (en) Window air conditioner
KR200154190Y1 (en) Anti-noise apparatus of airconditioner
KR200178068Y1 (en) Package air conditioner
KR100357107B1 (en) out door unit of air conditioner
CN115823659A (en) Design method of air conditioner outdoor unit and noise reduction cover
WO2021001982A1 (en) Air conditioner outdoor unit
JPH0571752A (en) Air-conditioner
KR100390221B1 (en) Outlet noise decreasing air-conditioner
KR200165694Y1 (en) Wall type airconditioner fan motor fixing device vibration absorbed
KR200142965Y1 (en) Out-door machine of airconditioner
KR950008549Y1 (en) Airconditioner
KR100270868B1 (en) Airconditioner noise deminish device
KR100390217B1 (en) A fixing structure of motor for air conditioner inner part

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050125

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20050425

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20050428

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050722

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20050816

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20050915

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080922

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090922

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100922

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110922

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110922

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120922

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120922

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130922

Year of fee payment: 8

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees