WO2018093115A1 - Unité extérieure pour climatiseur - Google Patents

Unité extérieure pour climatiseur 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
Authority
WO
WIPO (PCT)
Prior art keywords
wall portion
maximum
corners
diffuser
housing
Prior art date
Application number
PCT/KR2017/012871
Other languages
English (en)
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/ja
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to US16/461,301 priority Critical patent/US11085654B2/en
Priority to KR1020197003301A priority patent/KR102410402B1/ko
Publication of WO2018093115A1 publication Critical patent/WO2018093115A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—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

L'invention concerne une unité extérieure pour un climatiseur qui permet de réduire la perte d'admission d'un ventilateur hélicoïdal générée dans une partie d'angle d'un logement et d'obtenir une grande efficacité et un faible bruit de soufflage d'air. Une soufflante comprend : un logement ayant une partie paroi dans laquelle une sortie d'évacuation est formée ; un ventilateur hélicoïdal disposé à l'intérieur du logement afin de faire face à la sortie d'évacuation ; une partie diffuseur disposée devant le ventilateur hélicoïdal et formant une sortie d'évacuation. La partie diffuseur comprend une face inclinée conçue pour être inclinée par rapport à un arbre rotatif du ventilateur hélicoïdal, et l'angle d'inclinaison formé par l'arbre rotatif du ventilateur hélicoïdal et la face inclinée change dans une direction circonférentielle de la partie diffuseur.
PCT/KR2017/012871 2016-11-15 2017-11-14 Unité extérieure pour climatiseur WO2018093115A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/461,301 US11085654B2 (en) 2016-11-15 2017-11-14 Outdoor unit for air conditioner
KR1020197003301A KR102410402B1 (ko) 2016-11-15 2017-11-14 공기 조화기용 실외기

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016-222199 2016-11-15
JP2016222199 2016-11-15
JP2017-213284 2017-11-02
JP2017213284A JP2018084232A (ja) 2016-11-15 2017-11-02 送風装置及びこれを用いた空気調和機用室外機

Publications (1)

Publication Number Publication Date
WO2018093115A1 true WO2018093115A1 (fr) 2018-05-24

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Application Number Title Priority Date Filing Date
PCT/KR2017/012871 WO2018093115A1 (fr) 2016-11-15 2017-11-14 Unité extérieure pour climatiseur

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Country Link
WO (1) WO2018093115A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030035328A (ko) * 2001-10-31 2003-05-09 삼성전자주식회사 공기조화기의 실외기
US20060045777A1 (en) * 2004-09-01 2006-03-02 Delta Electronics, Inc. Fans and electronic devices utilizing the same
KR20090076031A (ko) * 2008-01-07 2009-07-13 삼성전자주식회사 송풍장치 및 이를 구비하는 공기조화기의 실외기
JP2013096622A (ja) * 2011-10-31 2013-05-20 Daikin Industries Ltd 空気調和装置の室外ユニット
JP2013221439A (ja) * 2012-04-16 2013-10-28 Mitsubishi Electric Corp 送風装置
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 (ko) * 2001-10-31 2003-05-09 삼성전자주식회사 공기조화기의 실외기
US20060045777A1 (en) * 2004-09-01 2006-03-02 Delta Electronics, Inc. Fans and electronic devices utilizing the same
KR20090076031A (ko) * 2008-01-07 2009-07-13 삼성전자주식회사 송풍장치 및 이를 구비하는 공기조화기의 실외기
JP2013096622A (ja) * 2011-10-31 2013-05-20 Daikin Industries Ltd 空気調和装置の室外ユニット
JP2013221439A (ja) * 2012-04-16 2013-10-28 Mitsubishi Electric Corp 送風装置
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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