WO2018093115A1 - Outdoor unit for air conditioner - Google Patents

Outdoor unit for air conditioner Download PDF

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Publication number
WO2018093115A1
WO2018093115A1 PCT/KR2017/012871 KR2017012871W WO2018093115A1 WO 2018093115 A1 WO2018093115 A1 WO 2018093115A1 KR 2017012871 W KR2017012871 W KR 2017012871W WO 2018093115 A1 WO2018093115 A1 WO 2018093115A1
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WO
WIPO (PCT)
Prior art keywords
wall portion
maximum
corners
diffuser
housing
Prior art date
Application number
PCT/KR2017/012871
Other languages
French (fr)
Korean (ko)
Inventor
고토신지
쿠리하라히로아키
나카가와스구루
Original Assignee
삼성전자주식회사
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
Priority claimed from JP2017213284A external-priority patent/JP2018084232A/en
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020197003301A priority Critical patent/KR102410402B1/en
Priority to US16/461,301 priority patent/US11085654B2/en
Publication of WO2018093115A1 publication Critical patent/WO2018093115A1/en

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    • 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
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • 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
    • F24F1/40—Vibration or noise prevention at outdoor units
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards

Definitions

  • the present invention relates to a blower and an outdoor unit for an air conditioner using the same.
  • FIG. 10 and FIG. 11 there is a horizontal outdoor unit.
  • the horizontal outdoor unit is provided with a propeller fan facing a blowout port formed in the front wall portion of the housing, and a diffuser portion is provided on the blower outlet side of the propeller fan.
  • a heat exchanger is provided along one of the rear wall portion and the left and right wall portions of the housing.
  • the suction port cannot be installed over the entire circumference of the outdoor unit in view of the arrangement of the various components, so that the suction resistance of the propeller fan is generated because the fluid resistance is greater at the corners of the housing than the other parts.
  • the pressure loss caused by the fan guard provided on the downstream side is also large, it may be difficult to realize high efficiency and low noise of the outdoor unit.
  • Patent Document 1 the radius of curvature of the portion close to the partition plate of the blower chamber and the machine chamber and the radius of curvature of the portion close to the outdoor heat exchanger in the opening portion (corresponding to the diffuser portion) of the bell mouth on the downstream side of the propeller fan
  • the structure which made smaller than the radius of curvature of the part remote from them is disclosed.
  • this patent document 1 by studying the opening shape of a bell mouse, the effect of suppressing deterioration of the air flow in the part of an opening of a bell mouse near a partition plate or an outdoor heat exchanger is aimed at.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2013-6266
  • the present invention has been made to solve the above problems, and the main problem is to reduce the suction loss of the propeller fan caused by the positional relationship between the suction port of the housing and the propeller fan, and to achieve high efficiency and low noise of the blowing air.
  • the outdoor unit for an air conditioner which has the air blower which concerns on this invention is arrange
  • the wall portion may be provided in a polygonal shape having a plurality of corners, and the inclination angle may be provided to have a maximum value at a position adjacent to at least one of the plurality of corners of the wall portion.
  • the wall portion may be a front wall portion forming a front surface of the housing.
  • the housing may include a rear wall portion, a left side wall portion and a right side wall portion positioned at both sides of the rear wall portion, and may include a suction port formed in at least one of the rear wall portion and the left and right wall portions.
  • It may include a heat exchanger formed along the suction port to correspond to the suction port.
  • the housing may include a front panel forming the front wall portion, and the diffuser portion may be integrally formed with the front panel.
  • the inclined surface may include a maximum inclined portion whose inclination angle is maximum.
  • the maximum inclined portion may be formed at one end of the inclined surface.
  • the front wall may be provided in a polygonal shape having a plurality of corners, and the maximum inclined portion may be disposed such that at least two or more correspond to corners adjacent to each other among the plurality of corners.
  • the front wall may be provided in a polygonal shape having a plurality of corners, and the maximum inclined portion may be disposed such that at least two or more correspond to corners disposed at a position furthest from each other among the plurality of corners.
  • the inclined surface may include a maximum inclined portion having a maximum inclination angle, and the maximum inclined portion may be disposed to correspond to a corner closest to at least one of the left sidewall portion and the right sidewall portion.
  • an outdoor unit for an air conditioner having a blower includes: a housing having a suction port and a discharge port; and a propeller fan disposed inside the housing and discharging air sucked through the suction port through the discharge port. And a diffuser disposed in front of the propeller fan, the diffuser having an opening, in the radial direction of the propeller fan, the radius of the opening end of the diffuser varies along the circumferential direction of the diffuser.
  • the opening end of the diffuser may include a maximum inclined portion whose radius is maximum.
  • the maximum inclined portion may be provided at a first position corresponding to a portion of the housing that is not a portion where the suction port is formed.
  • the maximum inclined portion may be provided at a second position opposite to the first position.
  • the opening end of the diffuser includes a minimum inclined portion whose radius is minimum, a distance from the maximum inclined portion provided in the first position to the minimum inclined portion, and the minimum inclined portion in the second inclined portion provided in the second position.
  • the distance to the negative may be different.
  • the housing includes a front wall portion having the discharge port formed therein, the front wall portion is provided in a polygonal shape having a plurality of corners, and the maximum inclined portion is disposed such that at least two or more correspond to corners adjacent to each other among the plurality of corners. Can be.
  • the housing includes a front wall portion in which the discharge port is formed, the front wall portion is provided in a polygonal shape having a plurality of corners, and the maximum inclined portion has at least two corners disposed at a position farthest from each other among the plurality of corners. It may be arranged to correspond to.
  • the housing includes a front wall portion in which the discharge port is formed, and a left side wall portion and a right side wall portion located on both sides of the front wall portion, and the maximum inclination portion is located at a corner closest to at least one of the left side wall portion and the right side wall portion. It can be arranged to correspond.
  • the diffuser portion since the diffuser portion has a maximum inclined portion at a position where the suction loss of the propeller fan is relatively large, the suction loss of the propeller fan generated by the positional relationship between the suction port of the housing and the propeller fan can be reduced, High efficiency and low noise can be realized.
  • FIG. 1 is a front view of an outdoor unit for an air conditioner according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along line AA ′ of FIG. 1.
  • FIG. 4 is a plan view of a front panel of an outdoor unit for an air conditioner according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view taken along lines BB ′ and C-C ′ of FIG. 4.
  • FIG. 7A and 7B are plan views of the front panel of the outdoor unit for air conditioner according to the modified embodiment of the present invention.
  • FIG. 10 is a front view of a conventional outdoor unit for an air conditioner.
  • FIG. 11 is a cross-sectional view taken along the line D-D 'of FIG. 10 and a cross-sectional view taken along the line E-E'.
  • the outdoor unit 100 for an air conditioner of this embodiment is a horizontal outdoor type
  • the housing 2 is partitioned into two spaces left and right by the partition plate 21, and one space (left space) S1 is a ventilation chamber in which the outdoor heat exchanger 3 and the blower 4 are accommodated,
  • the other space (right space) S2 is a machine room in which components constituting a refrigeration cycle such as a compressor or other electrical equipment are accommodated.
  • the front wall portion 2a of the housing 2 has a rectangular shape when viewed from the front, and discharge ports 2H are formed at two positions above and below the front wall portion 2a. Moreover, in the front wall part 2a, the part in which the discharge port 2H is formed corresponds to the part which forms the ventilation chamber S1. A fan guard (not shown) is provided outside the discharge port 2H.
  • one side wall portion (left wall portion 2b in FIG. 2) and rear wall portion 2c of the housing 2 have a suction port 2J for introducing air outside the housing 2 into the housing 2. Is formed.
  • the part in which the suction port 2J is formed in the rear wall part 2c corresponds to the part which forms the ventilation chamber S1.
  • the outdoor heat exchanger 3 is provided in a substantially L shape along the left wall portion 2b and the rear wall portion 2c of the housing 2. Further, the outdoor heat exchanger 3 may be divided into one heat exchange element provided along the left wall portion 2b and the other heat exchange element provided along the rear wall portion 2c.
  • the blower 4 is provided so as to correspond to each of the two discharge ports 2H.
  • air is sucked in from the inlet port 2J of the left side wall part 2b of the housing
  • each blower 4 has a propeller fan (axial flow fan) 41 provided to face the discharge port 2H, a motor 42 for driving the propeller fan 41 to rotate, and a radius of the propeller fan 41.
  • Cylindrical bell mouth 43 provided in the direction outer side, and the diffuser part 44 extended from the bell mouth 43 are provided.
  • the propeller fan 41 and the motor 42 are fixed to a predetermined position facing the discharge port 2H by a motor bracket (support) 5 fixed inside the housing 2 (see FIG. 2). .
  • the diffuser portion 44 extends from the discharge side end of the bell mouth portion 43 and is integrally formed with the bell mouth portion 43, and constitutes the front wall portion 2a. It is also formed integrally with the front panel 2P. That is, the bell mouth part 43, the diffuser part 44, and the front panel 2P are integrally molded products, and the discharge side opening of the diffuser part 44 has the same structure as the discharge port 2H.
  • the front panel 2P of the present embodiment has a rectangular shape when viewed from the front, and includes two discharge ports 2H.
  • the discharge port 2H is formed in the upper and lower two places of the front wall part 2a.
  • the diffuser part 44 of this embodiment is radially outward as it goes downstream, and is inclined with the rotation shaft 41x of the propeller fan 41 as shown to FIG. 4 and FIG. And an inclined surface 44a.
  • the inclination angle ⁇ formed between the inclined surface 44a and the rotating shaft 41x of the propeller fan 41 changes along the circumferential direction of the diffuser portion 44.
  • the opening dimension D of the discharge side opening of the diffuser portion 44 that is, the radius of the discharge side opening end of the diffuser portion 44 changes along the circumferential direction of the diffuser portion 44.
  • the open dimension D is a distance between the end of the discharge side opening and the rotation shaft 41x of the propeller fan 41 in the radial direction of the diffuser portion 44.
  • the suction side opening of the diffuser portion 44 has a circular shape similar to the bell mouth portion 43.
  • the inclined surface 44a may be provided in a linear shape or in a curved shape.
  • the diffuser portion 44 is the maximum inclination in which the inclination angle ⁇ or the open dimension D is maximized at the first position where the intake port 2J does not exist radially outward when viewed from the axial direction of the rotation shaft 41x. It has a portion 44M. Specifically, the diffuser portion 44 is inclined at a position adjacent to corner portions E1 and E4 on at least the partition plate 21 side among the four corner portions E1 to E4 of the front panel 2P. (theta) or the largest inclined portion 44M at which the open dimension D becomes the maximum.
  • the maximum inclined portion 44M is formed at one end of the inclined surface 44a of the deviewer portion 44.
  • the maximum inclined portion 44M is used to uniform the suction in the circumferential direction of the propeller fan 41 by reducing the flow path resistance of the portion where the suction loss of the propeller fan 41 is relatively large in the circumferential direction.
  • the first corner portion E1 is a corner portion formed by the upper wall portion 2e and the partition plate 21, and a suction port 2J is formed in the first corner portion E1.
  • the second corner portion E2 is a corner portion formed by the upper wall portion 2e and the upper portion of the left wall portion 2b (the portion without the suction port 2J), and the second corner portion E2 has the suction port 2J. Is not formed.
  • the third corner portion E3 is a corner portion formed by the lower wall portion 2f and the lower portion of the left wall portion 2b (the portion without the suction port 2J), and the third corner portion E3 has the suction port 2J. ) Is not formed.
  • the fourth corner portion E4 is a corner portion formed by the lower wall portion 2f and the partition plate 21, and the suction port 2J is not formed in the fourth corner portion E4.
  • the upper diffuser portion 44 has a maximum inclined portion 44M at a position adjacent to three corner portions E1, E2, and E4 among the four corner portions E1 to E4.
  • the position adjacent to the three corner portions E1, E2, and E4 is the first position in which the suction port 2J is not provided on the radially outer side when viewed from the axial direction of the rotation shaft 41x.
  • it is maximum in the part (2nd position) adjacent to the 3rd corner part E3 opposite to the part (1st position) adjacent to the 1st corner part E1.
  • the inclined portion 44M is not provided.
  • the lower diffuser part 44 has the largest inclined part 44M in the position adjacent to three corner parts E1, E3, and E4 among four corner parts E1 to E4.
  • the positions adjacent to the three corner portions E1, E3, and E4 are first positions without the inlet port 2J on the radially outer side when viewed from the axial direction of the rotation shaft 41x.
  • the portion (second position) adjacent to the second corner portion E2 opposite to the portion (first position) adjacent to the fourth corner portion E4 is maximum.
  • the inclined portion 44M is not provided.
  • a maximum inclined portion 44M is provided at a position adjacent to the third corner portion E3, and in the lower diffuser portion 44, the second corner portion E2.
  • the maximum inclined portion 44M may be provided at a position adjacent to).
  • the diffuser part 44 is a position where the suction loss of the propeller fan 41 is comparatively large, ie, the corner parts E1 to E4 of the front wall part 2a. Since it has a maximum inclined portion 44M at a position adjacent to), the suction loss of the propeller fan 41 generated in the corner portions E1 to E4 of the housing 2 in which the suction port 2J is not provided is reduced. Can be reduced. Thereby, the air blowing performance can be improved.
  • the inflow velocity distribution to the fan guard can be made as uniform as possible, and the pressure loss of the blower 4 in the outdoor unit 100 can be reduced. Can be. As a result, high performance and low noise of the outdoor unit 100 can be achieved. Other, dynamic pressure by the diffuser portion 44 The number of times of recovery can also be expected, so that an improvement in stall strength of the propeller fan 41 can be realized.
  • the propeller fan 41 (blower 4) is provided in two upper and lower positions, it may be the structure which has one propeller fan (blower), and three or more propeller fans (blower) It may have a structure.
  • the front panel 2P is provided with the same number of discharge ports and diffusers as the number of propeller fans.
  • the configuration of the diffuser portion 44 is not limited to the above embodiment, and the maximum inclined portion may be provided at a position adjacent to the two corner portions (see FIG. 7 (a)), and the position adjacent to any one corner portion. May be provided with a maximum inclined portion (see FIG. 7 (b)).
  • FIG. 7 (a) In particular, the case of FIG. 7 (a) will be described in detail.
  • the diffuser portion 44 has a maximum inclined portion 44M at a first position where there is no suction port 2J on the radially outer side when viewed from the axial direction of the rotation shaft 41x and at a second position opposite to the first position. .
  • the first position is a position adjacent to the second corner portion E2
  • the second position is a position adjacent to the fourth corner portion E4.
  • the maximum inclination part 44M is not provided in the 3rd position and 4th position orthogonal to the opposing direction of a 1st position and a 2nd position.
  • the third position is a portion adjacent to the first corner portion E1
  • the fourth position is a portion adjacent to the third corner portion E3.
  • the diffuser portion 44 has a minimum inclined portion 44N at which the inclination angle ⁇ is minimum or the open dimension D is minimum.
  • the minimum inclined portions 44N are provided between the two largest inclined portions 44M, respectively. Then, the distance L1 from the maximum inclined portion 44M to the minimum inclined portion 44N at the first position and the distance L2 from the maximum inclined portion 44M to the minimum inclined portion 44N at the second position. are configured differently.
  • the discharge port 2H is formed in the upper wall portion 2e of the housing
  • the propeller fan 41 is disposed opposite the discharge port 2H, and the air is sucked in from the side walls 2b to 2d of the housing 2.
  • the present invention can also be applied to a structure for discharging air from the discharge port 2H formed in the upper wall portion 2e of the housing 2.
  • a top-up outdoor unit which has one propeller fan in FIG. 9 is demonstrated.
  • air sucked from the side walls 2b to 2d of the housing 2 is discharged through the discharge port 2H of the upper wall portion 2e of the housing 2.
  • the heat exchanger 3 installed in the housing 2 of the outdoor unit is installed along the left wall portion 2b, the rear wall portion 2c, and the right wall portion 2d of the housing 2, and is approximately reversed when viewed from an upper surface thereof. It is shaped like a c.
  • One of the two terminal parts 3x of the heat exchanger 3 is located in the front wall part side in the left wall part 2b, and the other is located in the front wall part side in the right wall part 2d. .
  • the diffuser portion 44 is located at a position adjacent to corner portions E5 and E8 where the terminal portions 3x of the heat exchanger 3 are located among the four corner portions E5 to E8 of the upper wall portion 2e.
  • the inclined angle ⁇ or the open dimension D has a maximum inclined portion 44M that is maximum.
  • the diffuser portion 44 is provided with the maximum inclined portion 44M at a position where the suction port 2J is not located on the radially outer side when viewed from the axial direction of the rotary shaft 41x, but the rotary shaft 41x is provided.
  • the maximum inclination part 44M may be provided in the position which the inlet port 2J is distant from the propeller fan 41 when viewed from the axial direction of ().
  • the first position where the inlet port 2J is far from the propeller fan 41 means that mechanical parts such as, for example, compressors and the like other than the heat exchanger 3 are disposed between the propeller fan 41 and the inlet port 2J.
  • a position it means the position where a flow path is longer than the part in which the said mechanical component is not arrange

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

Abstract

Disclosed is an outdoor unit for an air conditioner for reducing intake loss of a propeller fan generated in a corner part of a housing and for realizing high efficiency and low noise of air blow. An air blower comprises: a housing having a wall part in which a discharge outlet is formed; a propeller fan disposed inside the housing to face the discharge outlet; and a diffuser part disposed in front of the propeller fan and forming a discharge outlet. The diffuser part comprises an inclined surface formed to be inclined with respect to a rotary shaft of the propeller fan, and an inclination angle formed by the rotary shaft of the propeller fan and the inclined surface changes along a circumferential direction of the diffuser part.

Description

공기 조화기용 실외기Outdoor unit for air conditioner
본 발명은, 송풍 장치 및 이를 사용한 공기 조화기용 실외기에 관한 것이다.The present invention relates to a blower and an outdoor unit for an air conditioner using the same.
종래의 공기 조화기용 실외기로서, 도 10 및 도 11 에 도시한 바와 같이, 횡취(橫吹)형 실외기가 있다.As a conventional outdoor unit for an air conditioner, as shown to FIG. 10 and FIG. 11, there is a horizontal outdoor unit.
횡취형 실외기는, 하우징의 전방 벽부에 형성된 취출구(吹出口)에 대향하여 프로펠러 팬이 설치되어 있고, 프로펠러 팬의 취출구측에 디퓨저부가 설치되어 있다. 또한, 하우징 내에서, 하우징의 후방 벽부 및 좌, 우측벽부의 한 쪽을 따라 열교환기가 설치되어 있다.The horizontal outdoor unit is provided with a propeller fan facing a blowout port formed in the front wall portion of the housing, and a diffuser portion is provided on the blower outlet side of the propeller fan. In the housing, a heat exchanger is provided along one of the rear wall portion and the left and right wall portions of the housing.
이러한 횡취형 실외기는, 그 구조상, 디퓨저부를 설치할 스페이스를 충분히 확보하기 어렵고, 디퓨저부의 경사면의 경사 각도나 취출 방향에 있어서의 길이 치수에 제약이 있다. 일반적으로, 디퓨저부는 취출 방향에 있어서의 길이 치수가 큰 쪽이 효율이 좋고, 프로펠러 팬과의 관계에서, 그 경사 각도(개방 각도)기 큰 쪽에 최적값이 존재하는 경우가 많다.Due to its structure, such a lateral outdoor unit is difficult to secure enough space to install a diffuser portion, and there are limitations on the inclination angle of the inclined surface of the diffuser portion and the length dimension in the extraction direction. In general, the larger the length dimension in the ejection direction is, the better the efficiency is, and the optimum value is often present in the larger inclination angle (opening angle) group in relation to the propeller fan.
그런데, 실외기에 있어서는 각종 부품의 배치 관점에서, 흡입구를 실외기의 전체 둘레에 걸쳐 설치할 수 없는 경우가 많으므로, 하우징의 코너부에서 유체 저항이 다른 부분에 비하여 커서 프로펠러 팬의 흡입 손실이 발생한다. 또한, 하류측에 설치된 팬 가드에 의한 압력 손실도 크기 때문에, 실외기의 고효율화 및 저소음화를 실현하는 것이 어려워 질 수 있다.By the way, in the outdoor unit, the suction port cannot be installed over the entire circumference of the outdoor unit in view of the arrangement of the various components, so that the suction resistance of the propeller fan is generated because the fluid resistance is greater at the corners of the housing than the other parts. In addition, since the pressure loss caused by the fan guard provided on the downstream side is also large, it may be difficult to realize high efficiency and low noise of the outdoor unit.
여기서, 특허문헌 1 에는, 프로펠러 팬의 하류측의 벨 마우스의 개구부(디퓨저부에 대응)에 있어서, 송풍기실 및 기계실의 구획판에 가까운 부분의 곡률 반경과, 실외 열교환기에 가까운 부분의 곡률 반경을, 그들로부터 먼 부분의 곡률 반경보다 작게 한 구조가 개시되어 있다. 이 특허문헌 1에서는, 벨 마우스의 개구부 형상을 연구함으로써, 벨 마우스의 개구부 중 구획판이나 실외 열교환기에 가까운 부분에 있어서의 공기 흐름의 악화를 억제하는 효과를 얻고자 하고 있다.Here, in Patent Document 1, the radius of curvature of the portion close to the partition plate of the blower chamber and the machine chamber and the radius of curvature of the portion close to the outdoor heat exchanger in the opening portion (corresponding to the diffuser portion) of the bell mouth on the downstream side of the propeller fan The structure which made smaller than the radius of curvature of the part remote from them is disclosed. In this patent document 1, by studying the opening shape of a bell mouse, the effect of suppressing deterioration of the air flow in the part of an opening of a bell mouse near a partition plate or an outdoor heat exchanger is aimed at.
그러나, 상기 구성에서는, 흡입구가 형성되어 있지 않은 하우징의 코너부의 유체 저항에 의해 발생하는 흡입 손실을 저감할 수 없기 때문에, 여전히 송풍의 고효율화 및 저소음화를 실현하기 어렵다.However, in the above configuration, the suction loss caused by the fluid resistance of the corner portion of the housing in which the suction port is not formed can not be reduced, and it is still difficult to realize high efficiency and low noise of the blowing air.
[선행기술문헌]  [Preceding technical literature]
[특허문헌]  [Patent Documents]
[특허문헌 1]일본특허 공개２０１３－９６６２２호 공보   [Patent Document 1] Japanese Unexamined Patent Publication No. 2013-6266
따라서 본 발명은, 상기 문제점을 해결하기 위한 것으로, 하우징의 흡입구와 프로펠러 팬의 위치 관계에 의해 발생하는 프로펠러 팬의 흡입 손실을 저감하고, 송풍의 고효율화 및 저소음화를 실현하는 것을 주된 과제로 한다.Accordingly, the present invention has been made to solve the above problems, and the main problem is to reduce the suction loss of the propeller fan caused by the positional relationship between the suction port of the housing and the propeller fan, and to achieve high efficiency and low noise of the blowing air.
즉, 본 발명에 관한 송풍 장치를 가지는 공기조화기용 실외기는, 토출구가 형성된 벽부를 가지는 하우징과, 상기 하우징 내부에서 상기 토출구에 대향하도록 배치된 프로펠러 팬과, 상기 프로펠러 팬의 전방에 배치되고, 상기 토출구를 형성하는 디퓨저부를 구비하고, 상기 디퓨저부는, 상기 프로펠러 팬의 회전축과 경사지게 형성되는 경사면을 포함하고, 상기 프로펠러 팬의 회전축과 상기 경사면이 이루는 경사각은 상기 디퓨저부의 원주 방향을 따라 변화한다.That is, the outdoor unit for an air conditioner which has the air blower which concerns on this invention is arrange | positioned in front of the said propeller fan, the housing which has a wall part in which the discharge port was formed, the propeller fan arrange | positioned facing the said discharge port in the said housing, And a diffuser portion forming a discharge port, wherein the diffuser portion includes an inclined surface formed to be inclined with the rotating shaft of the propeller fan, and an inclination angle formed by the rotating shaft of the propeller fan and the inclined surface is changed along the circumferential direction of the diffuser portion.
상기 벽부는 복수의 코너를 가지는 다각 형상으로 마련될 수 있고, 상기 경사각은 상기 벽부의 복수의 코너 중 적어도 하나와 인접하는 위치에서 최대값을 가지도록 마련될 수 있다.The wall portion may be provided in a polygonal shape having a plurality of corners, and the inclination angle may be provided to have a maximum value at a position adjacent to at least one of the plurality of corners of the wall portion.
상기 벽부는 상기 하우징의 전면을 형성하는 전방 벽부일 수 있다.The wall portion may be a front wall portion forming a front surface of the housing.
상기 하우징은 후방 벽부와, 상기 후방 벽부의 양 측에 위치하는 좌 측벽부 및 우 측벽부를 포함하고, 상기 후방 벽부 및 상기 좌, 우측벽부 중 적어도 하나에 형성된 흡입구를 포함할 수 있다.The housing may include a rear wall portion, a left side wall portion and a right side wall portion positioned at both sides of the rear wall portion, and may include a suction port formed in at least one of the rear wall portion and the left and right wall portions.
상기 흡입구에 대응하도록 상기 흡입구를 따라 형성되는 열교환기를 포함 할 수 있다.It may include a heat exchanger formed along the suction port to correspond to the suction port.
상기 하우징은 상기 전방 벽부를 형성하는 전방 패널을 포함하고, 상기 디퓨저부는 상기 전방 패널과 일체로 형성될 수 있다.The housing may include a front panel forming the front wall portion, and the diffuser portion may be integrally formed with the front panel.
상기 경사면은 그 경사각이 최대가 되는 최대 경사부를 포함 할 수 있다.The inclined surface may include a maximum inclined portion whose inclination angle is maximum.
상기 최대 경사부는 상기 경사면의 일 단부에 형성될 수 있다.The maximum inclined portion may be formed at one end of the inclined surface.
상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되고, 상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 인접한 코너들에 대응되도록 배치될 수 있다.The front wall may be provided in a polygonal shape having a plurality of corners, and the maximum inclined portion may be disposed such that at least two or more correspond to corners adjacent to each other among the plurality of corners.
상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되고, 상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 가장 먼 위치에 배치되는 코너들에 대응되도록 배치될 수 있다.The front wall may be provided in a polygonal shape having a plurality of corners, and the maximum inclined portion may be disposed such that at least two or more correspond to corners disposed at a position furthest from each other among the plurality of corners.
상기 경사면은 그 경사각이 최대가 되는 최대 경사부를 포함하고, 상기 최대 경사부는 상기 좌 측벽부 및 우 측벽부 중 적어도 하나와 가장 인접한 코너에 대응되도록 배치될 수 있다.The inclined surface may include a maximum inclined portion having a maximum inclination angle, and the maximum inclined portion may be disposed to correspond to a corner closest to at least one of the left sidewall portion and the right sidewall portion.
또한, 본 발명에 관한 송풍 장치를 가지는 공기조화기용 실외기는, 흡입구와 토출구가 형성된 하우징;과, 상기 하우징에 내측에 배치되고, 상기 흡입구를 통해 흡입된 공기를 상기 토출구를 통해 토출되도록 하는 프로펠러 팬;과, 상기 프로펠러 팬의 전방에 배치되고, 개구를 가지는 디퓨저를 포함하고, 상기 프로펠러 팬의 반경 방향으로, 상기 디퓨저의 개구 단부의 반경은 상기 디퓨저의 원주 방향을 따라 변화한다.In addition, an outdoor unit for an air conditioner having a blower according to the present invention includes: a housing having a suction port and a discharge port; and a propeller fan disposed inside the housing and discharging air sucked through the suction port through the discharge port. And a diffuser disposed in front of the propeller fan, the diffuser having an opening, in the radial direction of the propeller fan, the radius of the opening end of the diffuser varies along the circumferential direction of the diffuser.
상기 디퓨저의 개구 단부는 그 반경이 최대가 되는 최대 경사부를 포함할 수 있다.The opening end of the diffuser may include a maximum inclined portion whose radius is maximum.
상기 최대 경사부는 상기 하우징에서 상기 흡입구가 형성된 부분이 아닌 부분에 대응하는 제1 위치에 마련될 수 있다.The maximum inclined portion may be provided at a first position corresponding to a portion of the housing that is not a portion where the suction port is formed.
상기 최대 경사부는 상기 제1 위치와 대향하는 제2 위치에 마련 될 수 있다.The maximum inclined portion may be provided at a second position opposite to the first position.
상기 디퓨저의 개구 단부는 그 반경이 최소가 되는 최소 경사부를 포함하고, 상기 제1 위치에 마련된 최대 경사부로부터 상기 최소 경사부까지의 거리와, 상기 제2 위치에 마련된 최대 경사부로부터 상기 최소 경사부까지의 거리가 서로 다를 수 있다.The opening end of the diffuser includes a minimum inclined portion whose radius is minimum, a distance from the maximum inclined portion provided in the first position to the minimum inclined portion, and the minimum inclined portion in the second inclined portion provided in the second position. The distance to the negative may be different.
상기 하우징은 상기 토출구가 형성된 전방 벽부를 포함하고, 상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되며, 상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 인접한 코너들에 대응되도록 배치될 수 있다.The housing includes a front wall portion having the discharge port formed therein, the front wall portion is provided in a polygonal shape having a plurality of corners, and the maximum inclined portion is disposed such that at least two or more correspond to corners adjacent to each other among the plurality of corners. Can be.
상기 하우징은 상기 토출구가 형성된 전방 벽부를 포함하고, 상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되며, 상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 가장 먼 위치에 배치되는 코너들에 대응되도록 배치될 수 있다.The housing includes a front wall portion in which the discharge port is formed, the front wall portion is provided in a polygonal shape having a plurality of corners, and the maximum inclined portion has at least two corners disposed at a position farthest from each other among the plurality of corners. It may be arranged to correspond to.
상기 하우징은 상기 토출구가 형성된 전방 벽부와, 상기 전방 벽부의 양 측에 위치하는 좌 측벽부 및 우 측벽부를 포함하고, 상기 최대 경사부는 상기 좌 측벽부 및 우 측벽부 중 적어도 하나와 가장 인접한 코너에 대응되도록 배치 될 수 있다.The housing includes a front wall portion in which the discharge port is formed, and a left side wall portion and a right side wall portion located on both sides of the front wall portion, and the maximum inclination portion is located at a corner closest to at least one of the left side wall portion and the right side wall portion. It can be arranged to correspond.
본 발명에 따르면, 디퓨저부가 프로펠러 팬의 흡입 손실이 상대적으로 큰 위치에 최대 경사부를 가지므로, 하우징의 흡입구와 프로펠러 팬의 위치 관계에 의해 발생하는 프로펠러 팬의 흡입 손실을 저감할 수 있고, 송풍의 고효율화 및 저소음화를 실현할 수 있다.According to the present invention, since the diffuser portion has a maximum inclined portion at a position where the suction loss of the propeller fan is relatively large, the suction loss of the propeller fan generated by the positional relationship between the suction port of the housing and the propeller fan can be reduced, High efficiency and low noise can be realized.
도 1은 본 발명의 일 실시 형태에 따른 공기 조화기용 실외기의 정면도이다.1 is a front view of an outdoor unit for an air conditioner according to an embodiment of the present invention.
도 2는 본 발명의 일 실시 형태에 따른 공기 조화기용 실외기에서 토출구 및 송풍기의 위치 관계를 모식적으로 도시하는 도면이다.It is a figure which shows typically the positional relationship of a discharge port and a blower in the outdoor unit for air conditioners which concerns on one Embodiment of this invention.
도 3은 도 1의 A-A’선에 따른 단면도이다.3 is a cross-sectional view taken along line AA ′ of FIG. 1.
도 4는 본 발명의 일 실시 형태에 따른 공기 조화기용 실외기의 전방면 패널의 평면도이다.4 is a plan view of a front panel of an outdoor unit for an air conditioner according to an embodiment of the present invention.
도 5는 도 4의 B-B’선 및 C-C’선에 따른 단면도이다.FIG. 5 is a cross-sectional view taken along lines BB ′ and C-C ′ of FIG. 4.
도 6은 본 발명의 일 실시 형태에 따른 공기 조화기용 실외기의 코너부 및 최대 경사부의 위치 관계를 나타내는 정면도이다.It is a front view which shows the positional relationship of the corner part and maximum inclination part of the outdoor unit for air conditioners which concerns on one Embodiment of this invention.
도 7a 및 도 7b는 본 발명의 변형 실시 형태에 따른 공기 조화기용 실외기의 전방면 패널의 평면도이다.7A and 7B are plan views of the front panel of the outdoor unit for air conditioner according to the modified embodiment of the present invention.
도 8은 본 발명의 변형 실시 형태에 따른 공기 조화기용 실외기를 모식적으로 도시하는 정면도 및 평면도이다.It is a front view and a top view which shows typically the outdoor unit for air conditioners which concerns on the modified embodiment of this invention.
도 9는 본 발명의 변형 실시 형태에 따른 공기 조화기용 실외기를 모식적으로 도시하는 평면도이다.It is a top view which shows typically the outdoor unit for air conditioners which concerns on the modified embodiment of this invention.
도 10은 종래의 공기 조화기용 실외기의 정면도이다.10 is a front view of a conventional outdoor unit for an air conditioner.
도 11은 도 10의 D-D'선에 따른 단면도 및 E-E'선에 따른 단면도이다.FIG. 11 is a cross-sectional view taken along the line D-D 'of FIG. 10 and a cross-sectional view taken along the line E-E'.
이하, 본 발명의 송풍 장치를 사용한 공기 조화기용 실외기의 일 실시 형태에 대해서, 도면을 참조하여 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of the outdoor unit for air conditioners using the blower of this invention is described with reference to drawings.
본 실시 형태의 공기 조화기용 실외기(100)는, 횡취형의 실외기로써, 도 1 내지 도 3에 도시한 바와 같이, 직육면체 형상을 이루는 하우징(2)과, 하우징(2)에 수용된 실외 열교환기(3)와, 하우징(2)에 수용되어 실외 열교환기(3)로 외기를 송풍하기 위한 송풍기(4)를 구비한다.The outdoor unit 100 for an air conditioner of this embodiment is a horizontal outdoor type | mold outdoor unit, As shown in FIGS. 1-3, the housing 2 which has a rectangular parallelepiped shape, and the outdoor heat exchanger accommodated in the housing 2 3) and a blower 4 housed in the housing 2 to blow outside air to the outdoor heat exchanger 3.
하우징(2)은, 구획판(21)에 의해 좌우 2개의 공간으로 구획되고, 한 쪽 공간(좌측 공간)(S1)은 실외 열교환기(3) 및 송풍기(4)가 수용되는 송풍실 이고, 다른 쪽 공간(우측 공간)(S2)은 압축기 등의 냉동사이클을 구성하는 부품이나 기타 전장 기기가 수용되는 기계실이다.The housing 2 is partitioned into two spaces left and right by the partition plate 21, and one space (left space) S1 is a ventilation chamber in which the outdoor heat exchanger 3 and the blower 4 are accommodated, The other space (right space) S2 is a machine room in which components constituting a refrigeration cycle such as a compressor or other electrical equipment are accommodated.
또한, 하우징(2)의 전방 벽부(2a)는, 정면에서 바라볼 때 직사각형 형상을 이루고 있으며, 그 전방 벽부(2a)의 상, 하 두 군데에 토출구(2H)가 형성되어 있다. 또한, 전방 벽부(2a)에 있어서, 토출구(2H)가 형성되는 부분은, 송풍실(S1)을 형성하는 부분에 대응된다. 토출구(2H)의 외측에는, 팬 가드(도시하지 않음)가 설치되어 있다. The front wall portion 2a of the housing 2 has a rectangular shape when viewed from the front, and discharge ports 2H are formed at two positions above and below the front wall portion 2a. Moreover, in the front wall part 2a, the part in which the discharge port 2H is formed corresponds to the part which forms the ventilation chamber S1. A fan guard (not shown) is provided outside the discharge port 2H.
또한, 하우징(2)의 한 쪽 측벽부(도 2에서는 좌측벽부(2b)) 및 후방 벽부(2c)에는, 하우징(2) 외부의 공기를 하우징(2) 내부로 도입하기 위한 흡입구(2J)가 형성되어 있다. 또한, 후방 벽부(2c)에 있어서 흡입구(2J)가 형성되는 부분은, 송풍실(S1)을 형성하는 부분에 대응된다.In addition, one side wall portion (left wall portion 2b in FIG. 2) and rear wall portion 2c of the housing 2 have a suction port 2J for introducing air outside the housing 2 into the housing 2. Is formed. In addition, the part in which the suction port 2J is formed in the rear wall part 2c corresponds to the part which forms the ventilation chamber S1.
실외 열교환기(3)는 하우징(2)의 좌측벽부(2b) 및 후방 벽부(2c)를 따라 대략 L자 형상으로 마련된다. 또한, 실외 열교환기(3)는 좌측벽부(2b)를 따라 설치된 어느 하나의 열교환 요소와, 후방 벽부(2c)를 따라 설치된 다른 하나의 열교환 요소로 분할된 구조일 수도 있다.The outdoor heat exchanger 3 is provided in a substantially L shape along the left wall portion 2b and the rear wall portion 2c of the housing 2. Further, the outdoor heat exchanger 3 may be divided into one heat exchange element provided along the left wall portion 2b and the other heat exchange element provided along the rear wall portion 2c.
송풍기(4)는 상기 두 개의 토출구(2H)의 각각에 대응되도록 설치되어 있다. 송풍기(4)에 의해, 하우징(2)의 좌측벽부(2b) 및 후방 벽부(2c)의 흡입구(2J)로부터 공기가 흡입되어, 하우징(2)의 전방 벽부(2a)의 토출구(2H)를 통해 공기가 토출된다.The blower 4 is provided so as to correspond to each of the two discharge ports 2H. By the blower 4, air is sucked in from the inlet port 2J of the left side wall part 2b of the housing | casing 2 and the rear wall part 2c, and the discharge port 2H of the front wall part 2a of the housing | casing 2 is opened. Air is discharged through.
구체적으로 각 송풍기(4)는 토출구(2H)에 대향하여 설치된 프로펠러 팬(축류팬)(41)과, 프로펠러 팬(41)을 회전 구동시키기 위한 모터(42)와, 프로펠러 팬(41)의 반경 방향 외측에 설치된 원통 형상의 벨 마우스부(43)와, 벨 마우스부(43)로부터 연장 형성되는 디퓨저부(44)를 구비한다.Specifically, each blower 4 has a propeller fan (axial flow fan) 41 provided to face the discharge port 2H, a motor 42 for driving the propeller fan 41 to rotate, and a radius of the propeller fan 41. Cylindrical bell mouth 43 provided in the direction outer side, and the diffuser part 44 extended from the bell mouth 43 are provided.
프로펠러 팬(41) 및 모터(42)는, 하우징(2)의 내부에 고정된 모터 브래킷(지지구)(5)에 의해 토출구(2H)에 대향하는 소정의 위치에 고정된다(도 2 참조).The propeller fan 41 and the motor 42 are fixed to a predetermined position facing the discharge port 2H by a motor bracket (support) 5 fixed inside the housing 2 (see FIG. 2). .
디퓨저부(44)는, 도 3 내지 도 5에 도시한 바와 같이, 벨 마우스부(43)의 토출측 단부로부터 연장되어, 벨마우스부(43)와 일체로 형성된 것으로, 전방 벽부(2a)를 구성하는 전방면 패널(2P)과도 일체로 형성된다. 즉, 벨 마우스부(43), 디퓨저부(44) 및 전방면 패널(2P)은 일체 성형품이며, 디퓨저부(44)의 토출측 개구는 토출구(2H)와 동일한 구성이다.3 to 5, the diffuser portion 44 extends from the discharge side end of the bell mouth portion 43 and is integrally formed with the bell mouth portion 43, and constitutes the front wall portion 2a. It is also formed integrally with the front panel 2P. That is, the bell mouth part 43, the diffuser part 44, and the front panel 2P are integrally molded products, and the discharge side opening of the diffuser part 44 has the same structure as the discharge port 2H.
본 실시 형태의 전방면 패널(2P)은, 도 4에 도시한 바와 같이, 정면에서 볼 때 직사각형 형상을 이루며, 두 개의 토출구(2H)를 포함한다. 본 실시 형태의 실외기(100)에서는, 전방 벽부(2a)의 상, 하 두 군데에 토출구(2H)가 형성되어 있다.As shown in FIG. 4, the front panel 2P of the present embodiment has a rectangular shape when viewed from the front, and includes two discharge ports 2H. In the outdoor unit 100 of this embodiment, the discharge port 2H is formed in the upper and lower two places of the front wall part 2a.
그리고, 본 실시 형태의 디퓨저부(44)는, 도 4 및 도 5에 도시한 바와 같이, 하류측을 향함에 따라 반경 방향 외측을 향하는 동시에, 프로펠러 팬(41)의 회전축(41x)과 경사지게 형성되는 경사면(44a)를 포함한다. 경사면(44a)과 프로펠러 팬(41)의 회전축(41x)이 이루는 경사 각도(θ)는 디퓨저부(44)의 원주 방향을 따라 변화한다.And the diffuser part 44 of this embodiment is radially outward as it goes downstream, and is inclined with the rotation shaft 41x of the propeller fan 41 as shown to FIG. 4 and FIG. And an inclined surface 44a. The inclination angle θ formed between the inclined surface 44a and the rotating shaft 41x of the propeller fan 41 changes along the circumferential direction of the diffuser portion 44.
또한 디퓨저부(44)의 토출측 개구의 개방 치수(D), 즉 디퓨저부(44)의 토출측 개구 단부의 반경은 디퓨저부(44)의 원주 방향을 따라 변화한다. 여기서 개방 치수(D)란, 디퓨저부(44)의 반경 방향으로, 토출측 개구의 단부와 프로펠러 팬(41)의 회전축(41x)과의 거리이다. 또한, 디퓨저부(44)의 흡입측 개구는 벨 마우스부(43)와 마찬가지로 원 형상을 이루고 있다. 경사면(44a)은 그 단면이 직선 형상으로 마련되거나, 만곡 형상으로 마련될 수 있다.Further, the opening dimension D of the discharge side opening of the diffuser portion 44, that is, the radius of the discharge side opening end of the diffuser portion 44 changes along the circumferential direction of the diffuser portion 44. The open dimension D is a distance between the end of the discharge side opening and the rotation shaft 41x of the propeller fan 41 in the radial direction of the diffuser portion 44. In addition, the suction side opening of the diffuser portion 44 has a circular shape similar to the bell mouth portion 43. The inclined surface 44a may be provided in a linear shape or in a curved shape.
디퓨저부(44)는, 회전축(41x)의 축방향으로부터 볼 때 그 반경 방향 외측으로 흡입구(2J)가 없는 제1 위치에, 경사 각도(θ) 또는 개방 치수(D)가 최대가 되는 최대 경사부(44M)를 갖는다. 구체적으로 디퓨저부(44)는, 전방면 패널(2P)의 4개의 코너부(E1 내지 E4) 중 적어도 구획판(21)측에 있는 코너부(E1, E4)에 인접하는 위치에, 경사 각도(θ) 또는 개방 치수(D)가 최대가 되는 최대 경사부(44M)를 갖는다. 최대 경사부(44M)는 디뷰저부(44)의 경사면(44a)의 일 단부에 형성된다.The diffuser portion 44 is the maximum inclination in which the inclination angle θ or the open dimension D is maximized at the first position where the intake port 2J does not exist radially outward when viewed from the axial direction of the rotation shaft 41x. It has a portion 44M. Specifically, the diffuser portion 44 is inclined at a position adjacent to corner portions E1 and E4 on at least the partition plate 21 side among the four corner portions E1 to E4 of the front panel 2P. (theta) or the largest inclined portion 44M at which the open dimension D becomes the maximum. The maximum inclined portion 44M is formed at one end of the inclined surface 44a of the deviewer portion 44.
이 최대 경사부(44M)는, 프로펠러 팬(41)의 흡입 손실이 그 원주 방향에 있어서 상대적으로 큰 부분의 유로 저항을 작게 함으로써, 프로펠러 팬(41)의 원주 방향에 있어서의 흡입을 균일화하기 위한 것이다.The maximum inclined portion 44M is used to uniform the suction in the circumferential direction of the propeller fan 41 by reducing the flow path resistance of the portion where the suction loss of the propeller fan 41 is relatively large in the circumferential direction. will be.
도 6에 도시한 바와 같이, 제1 코너부(E1)는 상벽부(2e)와 구획판(21)에 의해 형성되는 코너부이고, 제1 코너부(E1)에는 흡입구(2J)가 형성되어 있지 않다. 제2 코너부(E2)는 상벽부(2e)와 좌벽부(2b)의 상부(흡입구(2J)가 없는 부분)에 의해 형성되는 코너부이며, 제2 코너부(E2)에는 흡입구(2J)가 형성되어 있지 않다. 제3 코너부(E3)는, 하벽부(2f)와 좌벽부(2b)의 하부(흡입구(2J)가 없는 부분)에 의해 형성되는 코너부이고, 제3 코너부(E3)에는 흡입구(2J)가 형성되어 있지 않다. 제4 코너부(E4)는 하벽부(2f)와 구획판(21)에 의해 형성되는 코너부이고, 제4 코너부(E4)에는 흡입구(2J)가 형성되어 있지 않다.As shown in FIG. 6, the first corner portion E1 is a corner portion formed by the upper wall portion 2e and the partition plate 21, and a suction port 2J is formed in the first corner portion E1. Not. The second corner portion E2 is a corner portion formed by the upper wall portion 2e and the upper portion of the left wall portion 2b (the portion without the suction port 2J), and the second corner portion E2 has the suction port 2J. Is not formed. The third corner portion E3 is a corner portion formed by the lower wall portion 2f and the lower portion of the left wall portion 2b (the portion without the suction port 2J), and the third corner portion E3 has the suction port 2J. ) Is not formed. The fourth corner portion E4 is a corner portion formed by the lower wall portion 2f and the partition plate 21, and the suction port 2J is not formed in the fourth corner portion E4.
보다 상세하게는, 상측의 디퓨저부(44)는, 4개의 코너부(E1 내지 E4) 중 3개의 코너부(E1, E2, E4)에 인접하는 위치에 최대 경사부(44M)를 갖는다. 상측의 디퓨저부(44)에 있어서, 3개의 코너부(E1, E2, E4)에 인접하는 위치가, 회전축(41x)의 축방향으로부터 볼 때 반경 방향 외측에 흡입구(2J)가 없는 제1 위치가 된다. 또한, 상측의 디퓨저부(44)에 있어서, 제1 코너부(E1)에 인접하는 부분(제1 위치)에 대향하는 제3 코너부(E3)에 인접하는 부분(제2 위치)에는, 최대 경사부(44M)가 마련되지 않는다.More specifically, the upper diffuser portion 44 has a maximum inclined portion 44M at a position adjacent to three corner portions E1, E2, and E4 among the four corner portions E1 to E4. In the upper diffuser portion 44, the position adjacent to the three corner portions E1, E2, and E4 is the first position in which the suction port 2J is not provided on the radially outer side when viewed from the axial direction of the rotation shaft 41x. Becomes Moreover, in the upper diffuser part 44, it is maximum in the part (2nd position) adjacent to the 3rd corner part E3 opposite to the part (1st position) adjacent to the 1st corner part E1. The inclined portion 44M is not provided.
또한, 하측의 디퓨저부(44)는, 4개의 코너부(E1 내지 E4) 중 3개의 코너부(E1, E3, E4)에 인접하는 위치에 최대 경사부(44M)를 갖는다. 하측의 디퓨저부(44)에 있어서, 3개의 코너부(E1, E3, E4)에 인접하는 위치는, 회전축(41x)의 축방향으로부터 볼 때 반경 방향 외측에 흡입구(2J)가 없는 제1 위치가 된다. 또한, 하측의 디퓨저부(44)에 있어서, 제4 코너부(E4)에 인접하는 부분(제1 위치)에 대향하는 제2 코너부(E2)에 인접하는 부분(제2 위치)에는, 최대 경사부(44M)가 마련되지 않는다.Moreover, the lower diffuser part 44 has the largest inclined part 44M in the position adjacent to three corner parts E1, E3, and E4 among four corner parts E1 to E4. In the lower diffuser portion 44, the positions adjacent to the three corner portions E1, E3, and E4 are first positions without the inlet port 2J on the radially outer side when viewed from the axial direction of the rotation shaft 41x. Becomes In the lower diffuser portion 44, the portion (second position) adjacent to the second corner portion E2 opposite to the portion (first position) adjacent to the fourth corner portion E4 is maximum. The inclined portion 44M is not provided.
또한, 상측의 디퓨저부(44)에 있어서, 제3 코너부(E3)에 인접하는 위치에 최대 경사부(44M)를 마련되고, 하측의 디퓨저부(44)에 있어서, 제2 코너부(E2)에 인접하는 위치에 최대 경사부(44M)가 마련될 수도 있다.Further, in the upper diffuser portion 44, a maximum inclined portion 44M is provided at a position adjacent to the third corner portion E3, and in the lower diffuser portion 44, the second corner portion E2. The maximum inclined portion 44M may be provided at a position adjacent to).
<본 실시 형태의 효과><Effect of this embodiment>
이렇게 구성한 본 실시 형태의 공기 조화기용 실외기(100)에 의하면, 디퓨저부(44)가, 프로펠러 팬(41)의 흡입 손실이 상대적으로 큰 위치, 즉 전방 벽부(2a)의 코너부(E1 내지 E4)에 인접하는 위치에, 최대 경사부(44M)를 가지므로, 흡입구(2J)가 마련되어 있지 않은 하우징(2)의 코너부(E1 내지 E4)에 있어서 발생하는 프로펠러 팬(41)의 흡입 손실을 저감할 수 있다. 이에 의해, 송풍 성능을 향상시킬 수 있다. 또한, 디퓨저부(44)의 토출구 측의 유로를 확대할 수 있으므로, 팬 가드로의 유입 속도 분포를 가급적 균일하게 할 수 있고, 실외기(100)에 있어서의 송풍기(4)의 압력 손실을 저감할 수 있다. 이들에 의해, 실외기(100)의 고성능화 및 저소음화가 가능하게 된다. 기타, 디퓨저부(44)에 의한 동압(動
Figure PCTKR2017012871-appb-I000001
) 회수도 기대할 수 있으므로 프로펠러 팬(41)의 실속 내력의 향상도 실현할 수 있다.According to the outdoor unit 100 for air conditioners of this embodiment comprised in this way, the diffuser part 44 is a position where the suction loss of the propeller fan 41 is comparatively large, ie, the corner parts E1 to E4 of the front wall part 2a. Since it has a maximum inclined portion 44M at a position adjacent to), the suction loss of the propeller fan 41 generated in the corner portions E1 to E4 of the housing 2 in which the suction port 2J is not provided is reduced. Can be reduced. Thereby, the air blowing performance can be improved. In addition, since the flow path on the discharge port side of the diffuser portion 44 can be enlarged, the inflow velocity distribution to the fan guard can be made as uniform as possible, and the pressure loss of the blower 4 in the outdoor unit 100 can be reduced. Can be. As a result, high performance and low noise of the outdoor unit 100 can be achieved. Other, dynamic pressure by the diffuser portion 44
Figure PCTKR2017012871-appb-I000001
The number of times of recovery can also be expected, so that an improvement in stall strength of the propeller fan 41 can be realized.
또한, 본 발명은 상기 각 실시 형태에 한정되는 것이 아니다.In addition, this invention is not limited to said each embodiment.
예를 들어, 상기 실시 형태에서는, 상하 두 군데에 프로펠러 팬(41)(송풍기4)을 설치하고 있으나, 하나의 프로펠러 팬(송풍기)을 갖는 구조일 수도 있고, 3개 이상의 프로펠러 팬(송풍기)을 갖는 구조일 수도 있다. 이 경우, 전방면 패널(2P)에는, 프로펠러 팬의 수와 동일한 수의 토출구 및 디퓨저부가 형성된다.For example, in the said embodiment, although the propeller fan 41 (blower 4) is provided in two upper and lower positions, it may be the structure which has one propeller fan (blower), and three or more propeller fans (blower) It may have a structure. In this case, the front panel 2P is provided with the same number of discharge ports and diffusers as the number of propeller fans.
디퓨저부(44)의 구성은 상기 실시 형태에 한정되지 않으며, 두 개의 코너부에 인접하는 위치에 최대 경사부가 마련될 수 있고(도 7(a) 참조), 어느 하나의 코너부에 인접하는 위치에 최대 경사부가 마련될 수도 있다(도 7(b) 참조).The configuration of the diffuser portion 44 is not limited to the above embodiment, and the maximum inclined portion may be provided at a position adjacent to the two corner portions (see FIG. 7 (a)), and the position adjacent to any one corner portion. May be provided with a maximum inclined portion (see FIG. 7 (b)).
특히, 도 7(a)의 경우에 대하여 상세히 설명한다.In particular, the case of FIG. 7 (a) will be described in detail.
디퓨저부(44)는 회전축(41x)의 축방향으로부터 볼 때 그 반경 방향 외측에 흡입구(2J)가 없는 제1 위치 및 상기 제1 위치에 대향하는 제2 위치에 최대 경사부(44M)를 가진다. 제1 위치는 제2 코너부(E2)에 인접하는 위치이며, 제2 위치는 제4 코너부(E4)에 인접하는 위치이다.The diffuser portion 44 has a maximum inclined portion 44M at a first position where there is no suction port 2J on the radially outer side when viewed from the axial direction of the rotation shaft 41x and at a second position opposite to the first position. . The first position is a position adjacent to the second corner portion E2, and the second position is a position adjacent to the fourth corner portion E4.
또한, 디퓨저부(44)에 있어서, 제1 위치 및 제2 위치의 대향 방향에 직교하는 제3 위치 및 제4 위치에는 최대 경사부(44M)가 마련되지 않는다. 여기서 제3 위치는 제1 코너부(E1)에 인접하는 부위이며, 제4 위치는 제3 코너부(E3)에 인접하는 부위이다.Moreover, in the diffuser part 44, the maximum inclination part 44M is not provided in the 3rd position and 4th position orthogonal to the opposing direction of a 1st position and a 2nd position. The third position is a portion adjacent to the first corner portion E1, and the fourth position is a portion adjacent to the third corner portion E3.
디퓨저부(44)는, 경사 각도(θ)가 최소가 되거나 또는 개방 치수(D)가 최소가 되는 최소 경사부(44N)를 갖는다. 최소 경사부(44N)는 2개의 최대 경사부(44M) 사이에 각각 마련된다. 그리고, 제1 위치의 최대 경사부(44M)로부터 최소 경사부(44N)까지의 거리(L1)와, 제2 위치의 최대 경사부(44M)로부터 최소 경사부(44N)까지의 거리(L2)는 서로 다르게 구성된다.The diffuser portion 44 has a minimum inclined portion 44N at which the inclination angle θ is minimum or the open dimension D is minimum. The minimum inclined portions 44N are provided between the two largest inclined portions 44M, respectively. Then, the distance L1 from the maximum inclined portion 44M to the minimum inclined portion 44N at the first position and the distance L2 from the maximum inclined portion 44M to the minimum inclined portion 44N at the second position. Are configured differently.
상기 실시 형태는 횡취형 실외기에 대해서 설명했지만, 도 8에 도시한 바와 같이, 종취(縱吹)형 실외기에 적용해도 좋다. 즉, 토출구(2H)가 하우징 상벽부(2e)에 형성되어 있고, 토출구(2H)에 대향하여 프로펠러 팬(41)이 배치되고, 하우징(2)의 측벽(2b 내지 2d)으로부터 공기를 흡입하여 하우징(2) 상벽부(2e)에 형성된 토출구(2H)로부터 공기를 토출하는 구조에도 적용이 가능하다.Although the said embodiment demonstrated the horizontal type outdoor unit, you may apply to a vertical type outdoor unit as shown in FIG. That is, the discharge port 2H is formed in the upper wall portion 2e of the housing, the propeller fan 41 is disposed opposite the discharge port 2H, and the air is sucked in from the side walls 2b to 2d of the housing 2. The present invention can also be applied to a structure for discharging air from the discharge port 2H formed in the upper wall portion 2e of the housing 2.
도 9에 하나의 프로펠러 팬을 갖는 상취(上吹)형 실외기에 대해서 설명한다. 도 9에 도시하는 실외기에서는, 하우징(2)의 측벽(2b~2d)으로부터 흡입된 공기가 하우징(2)의 상벽부(2e)의 토출구(2H)를 통해 토출된다. 실외기의 하우징(2) 내에 설치된 열교환기(3)는, 하우징(2)의 좌벽부(2b), 후방벽부(2c) 및 우벽부(2d)를 따라 설치되며, 상면에서 바라볼 때 대략 역 ㄷ자 형상을 이룬다. 열교환기(3)의 두 개의 종단부(3x)의 한쪽은, 좌벽부(2b)에 있어서의 전방벽부측에 위치하고 있고, 다른 쪽은, 우벽부(2d)에 있어서의 전방벽부측에 위치하고 있다. 디퓨저부(44)는, 상벽부(2e)의 4개의 코너부(E5~E8) 중, 열교환기(3)의 종단부(3x)가 위치하는 코너부(E5, E8)와 인접하는 위치에, 경사 각도(θ) 또는 개방 치수(D)가 최대가 되는 최대 경사부(44M)를 갖는다.A top-up outdoor unit which has one propeller fan in FIG. 9 is demonstrated. In the outdoor unit shown in FIG. 9, air sucked from the side walls 2b to 2d of the housing 2 is discharged through the discharge port 2H of the upper wall portion 2e of the housing 2. The heat exchanger 3 installed in the housing 2 of the outdoor unit is installed along the left wall portion 2b, the rear wall portion 2c, and the right wall portion 2d of the housing 2, and is approximately reversed when viewed from an upper surface thereof. It is shaped like a c. One of the two terminal parts 3x of the heat exchanger 3 is located in the front wall part side in the left wall part 2b, and the other is located in the front wall part side in the right wall part 2d. . The diffuser portion 44 is located at a position adjacent to corner portions E5 and E8 where the terminal portions 3x of the heat exchanger 3 are located among the four corner portions E5 to E8 of the upper wall portion 2e. , The inclined angle θ or the open dimension D has a maximum inclined portion 44M that is maximum.
상기 실시형태들에서는, 디퓨저부(44)에 있어서, 회전축(41x)의 축방향으로부터 볼 때 그 반경 방향 외측에 흡입구(2J)가 없는 위치에 최대 경사부(44M)가 마련되어 있으나, 회전축(41x)의 축방향으로부터 볼 때 프로펠러 팬(41)으로부터 흡입구(2J)가 먼 위치에 최대 경사부(44M)가 마련될 수도 있다. 예를 들어, 상기 실시형태들에 있어서 구획판(21)이 없는 구성을 생각할 수 있다. 여기서, 프로펠러 팬(41)으로부터 흡입구(2J)가 먼 제1 위치란, 프로펠러 팬(41)과 흡입구(2J) 사이에 열교환기(3) 이외의 예를 들면 압축기 등의 기계 부품이 배치되어 있는 위치로써, 프로펠러 팬(41)과 흡입구(2J) 사이에 상기 기계 부품이 배치되어 있지 않은 부분보다도 유로가 긴 위치를 의미한다.In the above embodiments, the diffuser portion 44 is provided with the maximum inclined portion 44M at a position where the suction port 2J is not located on the radially outer side when viewed from the axial direction of the rotary shaft 41x, but the rotary shaft 41x is provided. The maximum inclination part 44M may be provided in the position which the inlet port 2J is distant from the propeller fan 41 when viewed from the axial direction of (). For example, a configuration without the partition plate 21 in the above embodiments can be considered. Here, the first position where the inlet port 2J is far from the propeller fan 41 means that mechanical parts such as, for example, compressors and the like other than the heat exchanger 3 are disposed between the propeller fan 41 and the inlet port 2J. As a position, it means the position where a flow path is longer than the part in which the said mechanical component is not arrange | positioned between the propeller fan 41 and the suction port 2J.
이상에서는 특정의 실시예에 대하여 도시하고 설명하였다. 그러나, 상기한 실시예에만 한정되지 않으며, 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 이하의 청구범위에 기재된 발명의 기술적 사상의 요지를 벗어남이 없이 얼마든지 다양하게 변경 실시할 수 있을 것이다.In the above, specific embodiments have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and those skilled in the art may make various changes without departing from the spirit of the technical idea of the invention as set forth in the claims below. .

Claims (19)

  1. 송풍장치를 가지는 공기조화기용 실외기에 있어서, 상기 송풍장치는,In the outdoor unit for an air conditioner having a blower, the blower is,
    토출구가 형성된 벽부를 가지는 하우징과,A housing having a wall portion with a discharge port formed therein;
    상기 하우징 내부에서 상기 토출구에 대향하도록 배치된 프로펠러 팬과,A propeller fan disposed in the housing so as to face the discharge port;
    상기 프로펠러 팬의 전방에 배치되고, 상기 토출구를 형성하는 디퓨저부를 구비하고,It is disposed in front of the propeller fan, having a diffuser portion for forming the discharge port,
    상기 디퓨저부는, 상기 프로펠러 팬의 회전축과 경사지게 형성되는 경사면을 포함하고, 상기 프로펠러 팬의 회전축과 상기 경사면이 이루는 경사각은 상기 디퓨저부의 원주 방향을 따라 변화하는 공기조화기용 실외기.The diffuser unit includes an inclined surface which is formed to be inclined with the rotation axis of the propeller fan, the inclination angle formed by the rotation axis of the propeller fan and the inclined surface is changed in the circumferential direction of the diffuser unit.
  2. 제1항에 있어서,The method of claim 1,
    상기 벽부는 복수의 코너를 가지는 다각 형상으로 마련되고,The wall portion is provided in a polygonal shape having a plurality of corners,
    상기 경사각은 상기 벽부의 복수의 코너 중 적어도 하나와 인접하는 위치에서 최대값을 가지도록 마련되는 공기조화기용 실외기.The inclination angle is an outdoor unit for an air conditioner provided to have a maximum value at a position adjacent to at least one of the plurality of corners of the wall portion.
  3. 제1항에 있어서,The method of claim 1,
    상기 벽부는 상기 하우징의 전면을 형성하는 전방 벽부인 공기조화기용 실외기.And the wall portion is a front wall portion forming a front surface of the housing.
  4. 제3항에 있어서,The method of claim 3,
    상기 하우징은 후방 벽부와, 상기 후방 벽부의 양 측에 위치하는 좌 측벽부 및 우 측벽부를 포함하고,The housing includes a rear wall portion, a left side wall portion and a right side wall portion located on both sides of the rear wall portion,
    상기 후방 벽부 및 상기 좌, 우측벽부 중 적어도 하나에 형성된 흡입구를 포함하는 공기조화기용 실외기.An outdoor unit for an air conditioner including a suction port formed in at least one of the rear wall portion and the left and right wall portions.
  5. 제4항에 있어서,The method of claim 4, wherein
    상기 경사면은 그 경사각이 최대가 되는 최대 경사부를 포함하고,The inclined surface includes a maximum inclined portion whose inclination angle is maximum,
    상기 최대 경사부는 상기 좌 측벽부 및 우 측벽부 중 적어도 하나와 가장 인접한 코너에 대응되도록 배치되는 공기조화기용 실외기.And the maximum inclined portion is disposed to correspond to a corner closest to at least one of the left side wall portion and the right side wall portion.
  6. 제3항에 있어서,The method of claim 3,
    상기 하우징은 상기 전방 벽부를 형성하는 전방 패널을 포함하고,The housing includes a front panel forming the front wall,
    상기 디퓨저부는 상기 전방 패널과 일체로 형성되는 공기조화기용 실외기.The outdoor unit for an air conditioner, wherein the diffuser unit is integrally formed with the front panel.
  7. 제3항에 있어서,The method of claim 3,
    상기 경사면은 그 경사각이 최대가 되는 최대 경사부를 포함하는 공기조화기용 실외기.And the inclined surface includes a maximum inclined portion whose inclination angle is maximum.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 최대 경사부는 상기 경사면의 일 단부에 형성되는 공기조화기용 실외기.The maximum inclined portion is an outdoor unit for an air conditioner is formed at one end of the inclined surface.
  9. 제7항에 있어서,The method of claim 7, wherein
    상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되고,The front wall portion is provided in a polygonal shape having a plurality of corners,
    상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 인접한 코너들에 대응되도록 배치되는 공기조화기용 실외기.And the maximum inclined portion is disposed so that at least two or more correspond to adjacent corners of the plurality of corners.
  10. 제7항에 있어서,The method of claim 7, wherein
    상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되고,The front wall portion is provided in a polygonal shape having a plurality of corners,
    상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 가장 먼 위치에 배치되는 코너들에 대응되도록 배치되는 공기조화기용 실외기.And the maximum inclined portion is disposed so that at least two or more correspond to corners disposed at a position furthest from each other among the plurality of corners.
  11. 제4항에 있어서,The method of claim 4, wherein
    상기 흡입구에 대응하도록 상기 흡입구를 따라 형성되는 열교환기를 포함하는 공기조화기용 실외기.An outdoor unit for an air conditioner including a heat exchanger formed along the suction port so as to correspond to the suction port.
  12. 송풍장치를 가지는 공기조화기용 실외기에 있어서, 상기 송풍장치는,In the outdoor unit for an air conditioner having a blower, the blower is,
    흡입구와 토출구가 형성된 하우징;A housing formed with a suction port and a discharge port;
    상기 하우징에 내측에 배치되고, 상기 흡입구를 통해 흡입된 공기를 상기 토출구를 통해 토출되도록 하는 프로펠러 팬;과,A propeller fan disposed inside the housing and configured to discharge air sucked through the suction port through the discharge port;
    상기 프로펠러 팬의 전방에 배치되고, 개구를 가지는 디퓨저를 포함하고,A diffuser disposed in front of the propeller fan, the diffuser having an opening,
    상기 프로펠러 팬의 반경 방향으로, 상기 디퓨저의 개구 단부의 반경은 상기 디퓨저의 원주 방향을 따라 변화하는 공기조화기용 실외기.An outdoor unit for an air conditioner in a radial direction of the propeller fan, wherein a radius of an opening end of the diffuser varies along a circumferential direction of the diffuser.
  13. 제12항에 있어서,The method of claim 12,
    상기 디퓨저의 개구 단부는 그 반경이 최대가 되는 최대 경사부를 포함하는 공기조화기용 실외기.And an open end of the diffuser includes a maximum inclined portion whose radius is maximum.
  14. 제13항에 있어서,The method of claim 13,
    상기 최대 경사부는 상기 하우징에서 상기 흡입구가 형성된 부분이 아닌 부분에 대응하는 제1 위치에 마련되는 공기조화기용 실외기.And the maximum inclined portion is provided at a first position corresponding to a portion of the housing that is not a portion where the suction port is formed.
  15. 제14항에 있어서,The method of claim 14,
    상기 최대 경사부는 상기 제1 위치와 대향하는 제2 위치에 마련되는 공기조화기용 실외기.And the maximum inclined portion is provided at a second position facing the first position.
  16. 제15항에 있어서,The method of claim 15,
    상기 디퓨저의 개구 단부는 그 반경이 최소가 되는 최소 경사부를 포함하고,The opening end of the diffuser includes a minimum inclined portion whose radius is minimum,
    상기 제1 위치에 마련된 최대 경사부로부터 상기 최소 경사부까지의 거리와, 상기 제2 위치에 마련된 최대 경사부로부터 상기 최소 경사부까지의 거리는 서로 다른 공기조화기용 실외기.The distance from the maximum inclination part provided in the said 1st position to the said minimum inclination part, and the distance from the maximum inclination part provided in the said 2nd position to the said minimum inclination part are mutually different.
  17. 제13항에 있어서,The method of claim 13,
    상기 하우징은 상기 토출구가 형성된 전방 벽부를 포함하고, 상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되며,The housing includes a front wall portion formed with the discharge port, the front wall portion is provided in a polygonal shape having a plurality of corners,
    상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 인접한 코너들에 대응되도록 배치되는 공기조화기용 실외기.And the maximum inclined portion is disposed so that at least two or more correspond to adjacent corners of the plurality of corners.
  18. 제13항에 있어서,The method of claim 13,
    상기 하우징은 상기 토출구가 형성된 전방 벽부를 포함하고, 상기 전방 벽부는 복수의 코너를 가지는 다각 형상으로 마련되며,The housing includes a front wall portion formed with the discharge port, the front wall portion is provided in a polygonal shape having a plurality of corners,
    상기 최대 경사부는 적어도 둘 이상이 상기 복수의 코너 중 서로 가장 먼 위치에 배치되는 코너들에 대응되도록 배치되는 공기조화기용 실외기.And the maximum inclined portion is disposed so that at least two or more correspond to corners disposed at a position furthest from each other among the plurality of corners.
  19. 제13항에 있어서,The method of claim 13,
    상기 하우징은 상기 토출구가 형성된 전방 벽부와, 상기 전방 벽부의 양 측에 위치하는 좌 측벽부 및 우 측벽부를 포함하고,The housing includes a front wall portion in which the discharge port is formed, and a left side wall portion and a right side wall portion located at both sides of the front wall portion.
    상기 최대 경사부는 상기 좌 측벽부 및 우 측벽부 중 적어도 하나와 가장 인접한 코너에 대응되도록 배치되는 공기조화기용 실외기.And the maximum inclined portion is disposed to correspond to a corner closest to at least one of the left side wall portion and the right side wall portion.
PCT/KR2017/012871 2016-11-15 2017-11-14 Outdoor unit for air conditioner WO2018093115A1 (en)

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JP2017213284A JP2018084232A (en) 2016-11-15 2017-11-02 Air blower and outdoor machine for air conditioner using the same
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KR20030035328A (en) * 2001-10-31 2003-05-09 삼성전자주식회사 Outdoor unit of air conditioner
US20060045777A1 (en) * 2004-09-01 2006-03-02 Delta Electronics, Inc. Fans and electronic devices utilizing the same
KR20090076031A (en) * 2008-01-07 2009-07-13 삼성전자주식회사 Blowing apparatus and outdoor unit of air conditioner having the same
JP2013096622A (en) * 2011-10-31 2013-05-20 Daikin Industries Ltd Outdoor unit of air conditioner
JP2013221439A (en) * 2012-04-16 2013-10-28 Mitsubishi Electric Corp Blowing device
US20160305452A1 (en) * 2013-12-02 2016-10-20 Samsung Electronics Co., Ltd. Blower and outdoor unit of air conditioner comprising same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030035328A (en) * 2001-10-31 2003-05-09 삼성전자주식회사 Outdoor unit of air conditioner
US20060045777A1 (en) * 2004-09-01 2006-03-02 Delta Electronics, Inc. Fans and electronic devices utilizing the same
KR20090076031A (en) * 2008-01-07 2009-07-13 삼성전자주식회사 Blowing apparatus and outdoor unit of air conditioner having the same
JP2013096622A (en) * 2011-10-31 2013-05-20 Daikin Industries Ltd Outdoor unit of air conditioner
JP2013221439A (en) * 2012-04-16 2013-10-28 Mitsubishi Electric Corp Blowing device
US20160305452A1 (en) * 2013-12-02 2016-10-20 Samsung Electronics Co., Ltd. Blower and outdoor unit of air conditioner comprising same

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