KR20060005850A - Blowing fan and air conditioner having it - Google Patents

Blowing fan and air conditioner having it Download PDF

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Publication number
KR20060005850A
KR20060005850A KR1020040054836A KR20040054836A KR20060005850A KR 20060005850 A KR20060005850 A KR 20060005850A KR 1020040054836 A KR1020040054836 A KR 1020040054836A KR 20040054836 A KR20040054836 A KR 20040054836A KR 20060005850 A KR20060005850 A KR 20060005850A
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KR
South Korea
Prior art keywords
fan
blower
air conditioner
air
blowing
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KR1020040054836A
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Korean (ko)
Inventor
이준화
라선욱
윤태석
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삼성전자주식회사
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Priority to KR1020040054836A priority Critical patent/KR20060005850A/en
Priority to CNA2004101036543A priority patent/CN1721772A/en
Priority to EP05250099A priority patent/EP1617154A3/en
Publication of KR20060005850A publication Critical patent/KR20060005850A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/025—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal comprising axial flow and radial flow stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0029—Axial fans
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

본 발명은 열교환기와 외부공기 사이의 열교환을 돕기 위한 송풍팬 및 이를 포함하는 공기조화기에 관한 것이다. 본 발명에 따른 송풍팬은 횡류팬; 상기 횡류팬을 통과하는 공기를 상기 횡류팬의 단부측으로 밀어내는 송풍부재;를 포함하여 송풍팬 외부에 별도의 구조물을 구비하지 않고도 역류 및 소음방지의 기능을 수행할 수 있도록 한 것이다.
The present invention relates to a blower fan for assisting heat exchange between a heat exchanger and external air, and an air conditioner including the same. Blowing fan according to the present invention is a cross flow fan; It includes a blowing member for pushing the air passing through the cross-flow fan toward the end side of the cross-flow fan, so as to perform the function of backflow and noise prevention without providing a separate structure outside the blowing fan.

Description

송풍팬 및 이를 포함하는 공기조화기{BLOWING FAN AND AIR CONDITIONER HAVING IT}Blower fan and air conditioner including the same {BLOWING FAN AND AIR CONDITIONER HAVING IT}

도 1은 종래 기술에 의한 공기조화기의 실내기를 보인 개략도이다.1 is a schematic view showing an indoor unit of an air conditioner according to the prior art.

도 2는 또 다른 종래 기술에 의한 공기조화기의 실내기를 보인 개략도이다.Figure 2 is a schematic diagram showing an indoor unit of another air conditioner according to the prior art.

도 3은 본 발명에 의한 공기조화기의 실내기를 보인 분해사시도이다.3 is an exploded perspective view showing the indoor unit of the air conditioner according to the present invention.

도 4는 본 발명에 의한 공기조화기의 송풍팬을 보인 사시도이다.Figure 4 is a perspective view showing a blowing fan of the air conditioner according to the present invention.

도 5 및 도 6은 본 발명에 의한 공기조화기의 송풍팬을 이루는 날개차유닛을 보인 사시도이다.5 and 6 are perspective views showing a vane unit forming a blowing fan of the air conditioner according to the present invention.

도 7은 본 발명에 의한 송풍팬에 의해 송풍되는 공기의 유속분포를 나타낸 그래프이다.7 is a graph showing a flow rate distribution of air blown by a blowing fan according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

14: 모터, 20: 송풍팬,14: motor, 20: blower fan,

21, 22: 지지판, 23a, 23b: 날개차유닛,21, 22: support plate, 23a, 23b: vanes unit,

27: 축류팬, 25: 날개.27: axial fan, 25: wing.

본 발명은 송풍팬 및 이를 포함하는 공기조화기에 관한 것으로, 더욱 상세하게는 열교환기와 외부공기 사이의 열교환을 돕기 위한 송풍팬 및 이를 포함하는 공기조화기에 관한 것이다.The present invention relates to a blower fan and an air conditioner including the same, and more particularly, to a blower fan and an air conditioner including the same for assisting heat exchange between the heat exchanger and the outside air.

공기조화기는 방의 용도에 적합한 실내공기의 온도, 습도, 청정도, 평균유속을 유지하고 먼지·유해가스 등을 배제하는 장치로 주로 여름철 냉방, 겨울철 난방에 대하여 사계절을 통해서 항상 실내를 적당한 상태로 유지하는 것으로 인식되고 있다.An air conditioner is a device that maintains the temperature, humidity, cleanliness, and average flow rate of indoor air suitable for the use of a room, and excludes dust and harmful gases.It keeps the room in a proper state through four seasons mainly for cooling in summer and heating in winter. It is recognized.

공기조화기는 일반적으로 실외에 설치되는 실외기와 실내에 설치되는 실내기를 구비한다. 일본공개특허2001-201078호에도 개시되어 있는 이러한 종래 기술에 의한 실내기는 도 2에 도시한 바와 같이, 하우징(2) 내에 열교환기(미도시)가 설치되며, 열교환기(미도시)와 실내공기와의 열교환을 돕기 위해 송풍장치를 구비한다.An air conditioner generally includes an outdoor unit installed outdoors and an indoor unit installed indoors. As shown in FIG. 2, the indoor unit according to the related art disclosed in Japanese Patent Laid-Open No. 2001-201078 has a heat exchanger (not shown) installed in the housing 2, and a heat exchanger (not shown) and indoor air. A blower is provided to help heat exchange with.

송풍장치는 모터(5)와 모터(5)의 구동에 의해 회전되는 횡류팬(4)을 포함하며, 하우징(2)에는 실내공기를 흡입하는 흡입부(4a)와 공기를 토출하는 토출구(4b)가 형성된다. 모터(5)를 구동시키면, 횡류팬(4)이 회전하면서 회전축과 수직하는 방향으로 실내공기가 흡입부(4a)로부터 흡입되어 토출구(4b)로 토출된다.The blower includes a motor (5) and a cross flow fan (4) rotated by the driving of the motor (5), and the housing (2) has an inlet (4a) for sucking indoor air and an outlet (4b) for discharging air. ) Is formed. When the motor 5 is driven, the indoor air is sucked from the suction part 4a in the direction perpendicular to the rotation axis while the horizontal flow fan 4 is rotated, and discharged to the discharge port 4b.

이때, 도 1에 도시한 바와 같은 일반적인 공기조화기의 횡류팬(4) 양단부는 횡류팬(4)과 공기와의 마찰등에 의해 송풍되는 공기의 유속이 작은 반면, 횡류팬(4)의 중앙부위를 지나는 공기의 유속 및 유량은 횡류팬(4)의 양단부에 비해 크도록 형성된다. 따라서, 횡류팬(4)의 양단부위로 공기가 역류하거나 소음이 발생할 수 있는 문제점이 있었다. At this time, both ends of the cross flow fan 4 of the general air conditioner as shown in FIG. 1 have a small flow rate of the air blown by the friction between the cross flow fan 4 and the air, while the center portion of the cross flow fan 4 is small. The flow rate and the flow rate of the air passing through are formed to be larger than both ends of the cross flow fan (4). Therefore, there is a problem that air may flow backwards or noise may be generated at both ends of the crossflow fan 4.                         

이를 해결하기 위해 도 2에 도시된 바와 같이, 횡류팬(4)의 양단부에 대응하는 토출구(4b)의 양단부에 각각 역류방지판(6)을 설치한 공기조화기의 실내기(1)가 개발된 것이다.In order to solve this problem, as shown in FIG. 2, an indoor unit 1 of an air conditioner in which airflow prevention plates 6 are installed at both ends of discharge ports 4b corresponding to both ends of the crossflow fan 4 is developed. will be.

그러나, 이렇게 횡류팬(4) 양단부의 역류 및 소음을 방지하기 위하여 횡류팬(4) 외부에 별도의 구조물을 둘 경우, 이러한 역류방지판(6)과 같은 구조물에 의해 공간활용의 효율이 저하되어 제품의 소형화에 역행할 수 있는 문제점이 있었다.However, when a separate structure is provided outside the crossflow fan 4 to prevent backflow and noise at both ends of the crossflow fan 4, the efficiency of space utilization is reduced by the structure such as the backflow prevention plate 6. There was a problem that could be countered by the miniaturization of the product.

또한, 역류방지판(6)에 의해 토출구(4b)의 폭이 좁아지게 되므로, 일정한 폭의 토출구(4b)를 얻기 위해 사용하여야 하는 횡류팬(4)의 크기가 역류방지판(6)을 사용하지 않은 경우보다 커야 하는 문제점이 있었다. 따라서, 보다 큰 크기의 횡류팬(4)과 보다 큰 회전력을 공급하는 모터(5)를 사용함으로써 제조 및 사용 상 비용부담이 증가할 수 있는 문제점이 있었다.In addition, since the width of the discharge port 4b is narrowed by the non-return plate 6, the size of the cross-flow fan 4, which should be used to obtain the discharge port 4b of a constant width, is used for the non-return plate 6. There was a problem that should be larger than if not. Therefore, there is a problem in that the cost of manufacturing and use can be increased by using a larger size of the crossflow fan 4 and the motor 5 supplying a larger rotational force.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 역류방지판과 같은 별도의 구조물을 구비하지 않고도 역류 및 소음방지의 기능을 수행할 수 있도록 함으로써 제품의 소형화를 도모할 수 있도록 한 송풍팬 및 이를 포함하는 공기조화기를 제공하는 것이다.The present invention is to solve this problem, the object of the present invention is to enable the miniaturization of the product by performing the function of backflow and noise protection without having a separate structure such as a backflow prevention plate It is to provide a blower fan and an air conditioner including the same.

또한, 역류방지판과 같은 구조물에 의해 토출구의 폭이 좁아지거나 또는 이러한 문제를 해결하기 위해 더 큰 폭의 송풍팬을 사용함으로써 비용이 상승하는 것을 방지할 수 있도록 한 송풍팬 및 이를 포함하는 공기조화기를 제공하는 것이다.In addition, a blower fan and an air conditioner including the same to prevent the cost increase by using a blower fan having a wider width or narrowing the discharge port by a structure such as a backflow prevention plate or to solve such a problem. To provide a flag.

이러한 목적을 달성하기 위한 본 발명에 따른 송풍팬은 횡류팬; 상기 횡류팬을 통과하는 공기를 상기 횡류팬의 단부측으로 밀어내는 송풍부재;를 포함하는 것을 특징으로 한다.Blowing fan according to the present invention for achieving this object is a cross flow fan; And a blower member for pushing the air passing through the cross flow fan toward the end side of the cross flow fan.

또한, 상기 송풍부재는 축류팬인 것을 특징으로 한다.In addition, the blowing member is characterized in that the axial flow fan.

또한, 상기 송풍부재는 상기 횡류팬과 일체로 설치되는 것을 특징으로 한다.In addition, the blowing member is characterized in that it is installed integrally with the crossflow fan.

또한, 상기 송풍부재는 상기 횡류팬의 양단부로부터 각각 일정 간격 이격된 부위에 설치되는 것을 특징으로 한다.In addition, the blower member is characterized in that it is installed in a portion spaced apart from each other at both ends of the cross flow fan.

또한, 상기 횡류팬은 개구가 형성된 환형의 평판으로 이루어지는 지지판과 상기 지지판의 표면에 방사상으로 설치되는 날개를 포함하는 것을 특징으로 한다.In addition, the cross-flow fan is characterized in that it comprises a support plate consisting of an annular flat plate with an opening and a blade radially installed on the surface of the support plate.

또한, 상기 송풍부재는 상기 개구에 설치되는 것을 특징으로 한다.In addition, the blowing member is characterized in that installed in the opening.

또한, 본 발명에 따른 공기조화기는 횡류팬; 상기 횡류팬을 통과하는 공기를 상기 횡류팬의 단부 측으로 밀어내는 송풍부재;를 포함하는 송풍장치를 갖는 것을 특징으로 한다.In addition, the air conditioner according to the present invention; And a blower member for pushing air passing through the crossflow fan toward an end side of the crossflow fan.

또한, 상기 송풍장치는 상기 공기조화기의 실내기에 설치되는 것을 특징으로 한다.In addition, the blower is characterized in that installed in the indoor unit of the air conditioner.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부도면을 참조하여 상세히 설명한다. Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail.

본 발명이 적용된 실내기(10)를 갖는 공기조화기는 도 3에 도시한 바와 같이, 전면패널(11a)과 후면패널(11b)의 내부에 형성되는 공간에 열교환기(12)를 구비한다. 열교환기(12)는 냉동사이클을 순환하는 냉매와 실내공기를 열교환시키기 위한 것으로, 이러한 열교환을 돕기 위해 송풍팬(20)과 모터(14)를 포함하는 송풍장치가 설치된다. As shown in FIG. 3, the air conditioner having the indoor unit 10 to which the present invention is applied includes a heat exchanger 12 in a space formed inside the front panel 11a and the rear panel 11b. The heat exchanger 12 is used to heat exchange the refrigerant circulating in the refrigeration cycle and the indoor air. A blower including a blower fan 20 and a motor 14 is installed to assist such heat exchange.

전면패널(11a)의 전면에는 필터(18)와 흡입그릴(17)이 설치되고 전면패널(11a)의 하부에는 토출구(15)가 형성된다. 따라서, 송풍장치가 구동되면, 흡입그릴(17)을 통해 흡입된 공기가 열교환기(12)와 송풍팬(20)을 통과하여 토출구(15)를 통해 실내로 토출된다.A filter 18 and a suction grill 17 are installed on the front surface of the front panel 11a, and a discharge port 15 is formed below the front panel 11a. Therefore, when the blower is driven, the air sucked through the suction grill 17 passes through the heat exchanger 12 and the blower fan 20 and is discharged into the room through the discharge port 15.

송풍팬(20)은 도 4에 도시된 바와 같이, 회전방향과 송풍방향이 수직이 되는 횡류팬을 사용하며, 횡류팬에는 다수의 날개(25)가 회전축을 중심으로 방사상으로 배치된다. 그리고, 날개(25)를 지지하기 위한 수개의 지지판(21)이 회전축을 따라 길이방향으로 배치된다.As shown in FIG. 4, the blowing fan 20 uses a cross flow fan in which the rotation direction and the blowing direction are perpendicular to each other, and a plurality of vanes 25 are radially disposed around the rotation axis in the cross flow fan. Then, several supporting plates 21 for supporting the blades 25 are arranged in the longitudinal direction along the rotation axis.

지지판(21)은 통상적인 지지판(21)과 송풍팬(20)의 단부에 설치되는 단부지지판(22)으로 대별되는데, 통상적인 지지판(21)에는 도 5에 도시된 바와 같이 중앙에 원형의 개구(21a)가 형성되고, 단부지지판(21)에는 개구(21a)가 형성되지 않는다. 단부지지판(21)에는 축받이에 수용되거나 모터(14)와 연결되는 회전축이 설치된다.The support plate 21 is roughly divided into a conventional support plate 21 and an end support plate 22 installed at the end of the blower fan 20. The conventional support plate 21 has a circular opening in the center as shown in FIG. 21a is formed, and the opening 21a is not formed in the end support plate 21. The end support plate 21 is provided with a rotating shaft accommodated in the bearing or connected to the motor 14.

그리고, 양 단부지지판(22)으로부터 송풍팬(20) 중앙측으로 그 다음에 설치되는 지지판(21)에는 축류팬(27)이 설치된다. 축류팬(27)은 모터(14)에 의해 송풍팬(20)이 회전할 경우, 공기를 송풍팬(20)의 양단부로 밀어내도록 설치된다.And the axial flow fan 27 is provided in the support plate 21 provided next from the both end support plates 22 toward the center of the blower fan 20. The axial fan 27 is installed to push air to both ends of the blower fan 20 when the blower fan 20 is rotated by the motor 14.

이러한 송풍팬(20)은 도 5 및 도 6에 도시된 것과 같은 수개의 날개차유닛(23a, 23b)을 직렬로 부착시킴으로써 제조되는데, 도 5에 도시된 제1날개차유닛 (23a)은 전술한 바와 같이 중앙에 개구(21a)가 형성된 환형의 지지판(21) 표면에 수개의 날개(25)가 회전축을 중심으로하여 방사상으로 설치된다. 또한, 도 6에 도시된 바와 같이 제2날개차유닛(23b)은 개구(21a)의 테두리 부분에 축류팬(27)의 단부가 부착되도록 설치된다.Such a blowing fan 20 is manufactured by attaching several vane wheel units 23a and 23b in series as shown in FIGS. 5 and 6, wherein the first wing wheel unit 23a shown in FIG. As described above, several blades 25 are radially installed about the rotation axis on the surface of the annular support plate 21 having the opening 21a formed at the center thereof. In addition, as shown in FIG. 6, the second vane wheel unit 23b is installed such that an end portion of the axial fan 27 is attached to the edge portion of the opening 21a.

따라서 본 발명에 의한 송풍팬(20)을 제조하기 위해서는 이러한 제1날개차유닛(23a)과 제2날개차유닛(23b)을 일직선 상에 직렬로 배치하고 초음파융착등의 방법을 사용하여 부착시킨다.Therefore, in order to manufacture the blower fan 20 according to the present invention, the first vane wheel unit 23a and the second vane wheel unit 23b are arranged in series on a straight line and attached by using a method such as ultrasonic welding. .

이러한 구조를 갖는 본 발명에 의한 송풍팬(20)을 모터(14)를 구동함으로써 회전시키면 도 4에 도시된 바와 같이, 날개(25)에 의해 공기가 회전축과 수직한 방향으로 토출된다. 이 때, 축류팬(27)은 공기를 송풍팬(20)의 양단부로 밀어내게 되므로, 일반적으로 축류팬(27)을 사용하지 않은 경우보다 송풍팬(20) 양단부로부터 배출되는 공기의 유속 및 유량이 증가하게 된다.When the blower fan 20 according to the present invention having such a structure is rotated by driving the motor 14, as shown in FIG. 4, air is discharged by the vanes 25 in a direction perpendicular to the rotation axis. At this time, since the axial fan 27 pushes air to both ends of the blower fan 20, the flow rate and flow rate of the air discharged from both ends of the blower fan 20 is generally higher than the case where the axial fan 27 is not used. Will increase.

도 7은 이러한 축류팬(27)의 역할을 설명하는 그래프이다. 이 그래프의 가로축은 도 4에 도시한 바와 같이 토출구(15)의 일단을 원점으로 타단을 100으로 잡아 원점으로부터 각 지점까지의 거리에 따라 각 지점을 통과하는 공기의 유속이 어떻게 변화하는지를 나타낸 것이다. 여기에서 실선으로 표시된 것은 축류팬(27)을 설치하지 않은 경우의 유속분포를 나타낸 것이고, 점선으로 표시된 것은 본 발명에 의한 송풍팬(20)과 같이 축류팬(27)을 이용하여 공기를 양단부로 밀어내도록 한 경우의 유속분포를 나타낸 것이다.7 is a graph for explaining the role of the axial fan 27. The horizontal axis of this graph shows how the flow velocity of the air passing through each point changes according to the distance from the origin to each point by holding one end of the discharge port 15 as the origin and the other end as 100 as shown in FIG. Here, the solid line indicates the flow rate distribution when the axial fan 27 is not installed, and the dotted line indicates the air to both ends by using the axial fan 27 as in the blower fan 20 according to the present invention. The flow rate distribution in the case of pushing out is shown.

점선으로 표시된 그래프와 실선으로 표시된 그래프를 비교하여 보면 점선으 로 표시된 그래프의 중앙부위가 실선으로 표시된 그래프의 중앙부위보다 유속이 적게 나타나지만, 토출구(15)의 양단으로 갈수록 반대로 점선으로 표시된 그래프의 유속값이 커지게 된다. 또한, 평균유속을 비교하더라도 축류팬(27)을 설치한 경우가 5.4% 크게 나타나는 것을 확인할 수 있다.When comparing the graph indicated by the dotted line and the graph indicated by the solid line, the flow rate of the graph indicated by the dotted line is reversed toward both ends of the discharge port 15, although the flow rate of the center of the graph indicated by the dotted line is smaller than that of the graph indicated by the solid line. The value is increased. In addition, even when comparing the average flow rate, it can be seen that the case where the axial fan 27 is installed is 5.4% larger.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 송풍팬 및 이를 포함하는 공기조화기에 의하면, 송풍팬 외부에 별도의 구조물을 구비하지 않고도 역류 및 소음방지의 기능을 수행할 수 있도록 함으로써 제품의 소형화를 도모할 수 있는 효과가 있다.As described in detail above, according to the blower fan and the air conditioner including the same according to the present invention, it is possible to miniaturize the product by performing the function of backflow and noise prevention without providing a separate structure outside the blower fan It can work.

또한, 역류방지판과 같은 구조물에 의해 토출구의 폭이 좁아지거나 또는 이러한 문제를 해결하기 위해 더 큰 폭의 송풍팬을 사용함으로써 비용이 상승하는 것을 방지할 수 있는 효과가 있다.In addition, the width of the discharge port is narrowed by a structure such as a non-return plate, or by using a larger blower fan to solve such a problem, there is an effect that the cost can be prevented from rising.

Claims (8)

횡류팬;Cross flow fan; 상기 횡류팬을 통과하는 공기를 상기 횡류팬의 단부측으로 밀어내는 송풍부재;를 포함하는 송풍팬.And a blower member for pushing the air passing through the crossflow fan toward an end side of the crossflow fan. 제1항에 있어서,The method of claim 1, 상기 송풍부재는 축류팬인 것을 특징으로 하는 송풍팬.The blowing member is a blowing fan, characterized in that the axial flow fan. 제1항에 있어서,The method of claim 1, 상기 송풍부재는 상기 횡류팬과 일체로 설치되는 것을 특징으로 하는 송풍팬.The blower fan is characterized in that the blower fan is integrally installed with the crossflow fan. 제3항에 있어서,The method of claim 3, 상기 송풍부재는 상기 횡류팬의 양단부로부터 각각 일정 간격 이격된 부위에 설치되는 것을 특징으로 하는 송풍팬.The blower fan is characterized in that the blower fan is installed in a portion spaced apart from each other at both ends of the cross flow fan. 제1항에 있어서,The method of claim 1, 상기 횡류팬은 개구가 형성된 환형의 평판으로 이루어지는 지지판과 상기 지지판의 표면에 방사상으로 설치되는 날개를 포함하는 것을 특징으로 하는 송풍팬.The crossflow fan comprises a support plate consisting of an annular flat plate with an opening and a wing provided radially on the surface of the support plate. 제5항에 있어서,The method of claim 5, 상기 송풍부재는 상기 개구에 설치되는 것을 특징으로 하는 송풍팬.Blowing fan is characterized in that the blowing member is installed in the opening. 횡류팬;Cross flow fan; 상기 횡류팬을 통과하는 공기를 상기 횡류팬의 단부 측으로 밀어내는 송풍부재;를 포함하는 송풍장치를 갖는 공기조화기.And a blower member for pushing the air passing through the crossflow fan toward the end side of the crossflow fan. 제7항에 있어서,The method of claim 7, wherein 상기 송풍장치는 상기 공기조화기의 실내기에 설치되는 것을 특징으로 하는 공기조화기.The air blower is installed in the indoor unit of the air conditioner.
KR1020040054836A 2004-07-14 2004-07-14 Blowing fan and air conditioner having it KR20060005850A (en)

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CNA2004101036543A CN1721772A (en) 2004-07-14 2004-12-31 Pressure fan and air-conditioner with it
EP05250099A EP1617154A3 (en) 2004-07-14 2005-01-11 Blowing fan and air conditioner

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JP4433093B2 (en) * 2008-05-09 2010-03-17 ダイキン工業株式会社 Cross flow fan and air conditioner equipped with the same
CN102147130A (en) * 2011-04-18 2011-08-10 广东美的制冷设备有限公司 Indoor machine of two-tubular air conditioner
JP5369141B2 (en) * 2011-06-10 2013-12-18 三菱電機株式会社 Air conditioner
CN109538514A (en) * 2019-01-21 2019-03-29 湖北工程职业学院 A kind of crossflow fan of damping noise reduction

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US1462557A (en) * 1922-01-24 1923-07-24 Jr Charles A Kuenzel Blower or suction fan
GB671607A (en) * 1950-05-05 1952-05-07 Davidson & Co Ltd Improvements in or relating to multi-stage fans, pumps and the like
MY114835A (en) * 1997-12-22 2003-01-31 Matsushita Electric Ind Co Ltd Air conditioner and its manufacturing method
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