WO2016136351A1 - Unité extérieure de climatiseur - Google Patents

Unité extérieure de climatiseur Download PDF

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Publication number
WO2016136351A1
WO2016136351A1 PCT/JP2016/051980 JP2016051980W WO2016136351A1 WO 2016136351 A1 WO2016136351 A1 WO 2016136351A1 JP 2016051980 W JP2016051980 W JP 2016051980W WO 2016136351 A1 WO2016136351 A1 WO 2016136351A1
Authority
WO
WIPO (PCT)
Prior art keywords
blower
outdoor unit
electrical box
air conditioner
air
Prior art date
Application number
PCT/JP2016/051980
Other languages
English (en)
Japanese (ja)
Inventor
道生 瀬津
雄樹 河野
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to EP16755101.9A priority Critical patent/EP3263997A4/fr
Priority to CN201680002258.2A priority patent/CN106796038B/zh
Publication of WO2016136351A1 publication Critical patent/WO2016136351A1/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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • 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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • 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
    • F24F1/58—Separate protective covers for outdoor units, e.g. solar guards, snow shields or camouflage

Definitions

  • the present invention relates to an outdoor unit of an air conditioner.
  • Patent Document 1 A conventional outdoor unit of an air conditioner is disclosed in Patent Document 1.
  • a heat exchanger and a blower are arranged in a casing, and outside air heat-exchanged by the heat exchanger by driving of the blower is blown out from an outlet provided in the front surface of the casing.
  • an electrical box that houses a circuit board that is electrically connected to the blower is disposed in the housing. The air in the electrical box is exhausted to the blower side by suction by driving the blower, and the heat generating components mounted on the circuit board are cooled.
  • the heat exchanger has a holding plate that integrally holds the refrigerant pipes arranged in parallel in the vertical direction by meandering at the end portion and is erected in the casing. At this time, the heat exchanger is fixed in the housing by screwing the holding plate and the peripheral wall of the electrical equipment box.
  • the heat exchanger is housed in the housing with the refrigerant pipe bent, and the refrigerant pipe is easily deformed during assembly work, making it difficult to match the screw holes between the electrical box and the heat exchanger, resulting in reduced assembly workability. There was a problem to do.
  • an object of the present invention is to provide an outdoor unit for an air conditioner that can efficiently cool a circuit board to be stored and prevent raindrops from entering the electrical box.
  • an object of the present invention is to provide an outdoor unit for an air conditioner that improves the assembly workability of a heat exchanger and an electrical box.
  • a blower and an electrical box that houses a circuit board connected to the blower are arranged in a housing, and air in the electrical box is exhausted by suction by driving the blower.
  • the exhaust duct is formed at an end portion in the left-right direction of the electrical box and has an outlet at the upper end facing the inside of the electrical box in the vertical direction.
  • the first passage extends, and has a second passage extending in the left-right direction having an exhaust port facing the blower chamber in which the blower is arranged, and is first through a communication port formed in a lower portion of the peripheral wall of the first passage.
  • the passage and the second passage communicate with each other, and the exhaust port is disposed above the communication port and further away from the blower than the outlet.
  • the exhaust duct may be provided at both front and rear ends of the electrical box, and the exhaust port may rotate more than the front and rear ends of the fan blades. It is arranged outside in the axial direction.
  • the present invention is characterized in that in the outdoor unit of the air conditioner having the above-described configuration, a shielding portion that shields the blower side is provided at the exhaust port.
  • the present invention provides an outdoor unit of an air conditioner in which a heat exchanger, a blower, and an electrical box that houses a circuit board connected to the compressor and the blower are arranged in a casing.
  • the heat exchanger has a holding plate that integrally holds the refrigerant pipes arranged in parallel in the vertical direction by meandering at the end portion, and is installed upright in the casing, and the holding plate fixes the refrigerant pipe
  • a bent portion bent in an L shape from one side end of the flat portion and the electrical box is disposed on an upper portion of the housing and provided with a protruding portion protruding from a peripheral wall
  • the protruding portion has a groove portion that extends in the vertical direction and fits into the flat portion, and an engaging portion that engages with the bent portion.
  • the present invention is characterized in that in the outdoor unit of an air conditioner having the above-described configuration, the lower end of at least one side wall of the groove portion is formed of an inclined surface.
  • the exhaust port is arranged farther from the blower than the outflow port and the communication port. Can be suppressed. Furthermore, since the communication port is arranged at the lower portion of the first passage extending in the vertical direction, it is possible to suppress the airflow including raindrops from rising up the first passage by gravity. In addition, since the first passage and the second passage are orthogonal to each other and the exhaust port is disposed above the communication port, the air flow path is bent a plurality of times, resulting in a large pressure loss and further infiltration of raindrops. Therefore, it is possible to prevent a failure of the electrical system of the circuit board due to the intrusion of raindrops into the electrical box via the outlet.
  • the flat portion for fixing the refrigerant pipe at the end is fitted to the groove portion extending in the vertical direction provided on the peripheral wall of the electrical equipment box, and the heat exchanger and the electrical equipment box To fix.
  • the bent portion bent in an L shape from one side end of the flat portion and the engaging portion of the electrical box are engaged, and the heat exchanger and the electrical box are securely fixed.
  • FIG. 1 is an exploded perspective view of the outdoor unit 10, where the right hand side of the user standing toward the outlet 12 of the outdoor unit 10 is the X1 direction, and the left hand side is the X2 direction.
  • the front of the outdoor unit 10 is defined as the Y1 direction
  • the rear of the outdoor unit 10 is defined as the Y2 direction.
  • the upper side of the outdoor unit 10 is defined as the Z1 direction
  • the lower side is defined as the Z2 direction.
  • the outdoor unit 10 includes a rectangular parallelepiped housing 11, and the housing 11 is provided with a top plate 11U at the top and a bottom plate 11D at the bottom.
  • a front plate 11F is disposed on the front surface of the housing 11 and a rear plate (not shown) is disposed on the rear.
  • a left side plate 11L is arranged on the left side, and a right side plate 11R is arranged on the right side.
  • the left side plate 11L and the right side plate 11R are formed in an L shape when viewed from above, and a part thereof is bent to the back side.
  • An air outlet 12 is opened at the center of the front plate 11F of the housing 11, and a grill 12a is attached to the air outlet 12.
  • a rear intake port (not shown) is opened in the back plate, and a left side intake port 11LS is opened in the left side plate 11L.
  • the right side surface plate 11R has a right side surface intake port 11RS opened in a part on the back side.
  • the left side intake port 11LS and the right side intake port 11RS are formed in a lattice shape.
  • a heat exchanger 24 is erected along the back surface. Both ends of the heat exchanger 24 are bent and formed in a substantially U shape when viewed from the top.
  • the heat exchanger 24 is arranged to face the left side air inlet 11LS, the rear side air inlet (not shown), and the right side air inlet 11RS.
  • a partition wall 13 is erected from the bottom plate 11D and is partitioned into a blower chamber 14 and a compressor chamber 15.
  • a blower 40 is disposed in the blower chamber 14 in front of the heat exchanger 24.
  • a compressor 41 is disposed in the compressor chamber 15.
  • An electrical box 50 straddling the blower chamber 14 and the compressor chamber 15 is arranged on the upper portion of the housing 11.
  • a circuit board 60 is accommodated in the electrical box 50, and the circuit board 60 is arranged so as to cover the upper surface of the electrical box 50 that is open.
  • the circuit board 50 is electrically connected to the blower 40 and the compressor 41 and controls the operation of the outdoor unit 10.
  • the internal wiring of the outdoor unit 10 that connects the circuit board 50 and the compressor 41 and the like extends to the outside of the electrical box 50 through an outlet 51 that faces the compressor room 15 provided on the side wall of the electrical box 50.
  • the external wiring for connecting the circuit board 50 and the indoor unit extends to the outside of the electrical equipment box 50 through an outlet 57 (see FIG. 4) provided on the side wall of the electrical equipment box 50, and the right side plate 11R. Is pulled out of the housing 11 through a wiring port 80 provided in the housing 11.
  • FIG. 2 is an enlarged perspective view showing one end portion of the heat exchanger 24.
  • refrigerant tubes 25 extending in the left-right direction (X1-X2 direction) meander and are arranged in parallel at intervals in the up-down direction (Z1-Z2 direction).
  • the refrigerant pipe 25 is bent at both ends in the front-rear direction (Y1-Y2 direction) and fixed to the holding plate 26.
  • the holding plate 26 has a flat portion 26a and a bent portion 26b, and holds the refrigerant tubes 25 arranged in the vertical direction by the flat flat portion 26a.
  • the bent portion 26b is formed by bending one end of the flat portion 26a into an L shape. The strength of the holding plate 26 can be improved by the bent portion 26b.
  • a large number of fins 25 a extending vertically are fixed to the refrigerant pipe 25.
  • the electrical equipment box 60 is provided with a protruding portion 60e formed of a pair of ribs 60c and 60d protruding from the peripheral wall.
  • the protruding portion 60e extends in the vertical direction (Z1-Z2 direction), and a groove portion 60a is formed between the rib 60c and the rib 60d.
  • Both side walls of the groove portion 60a have a predetermined width in the left-right direction (X1-X2 direction) so as to come into surface contact with the flat portion 26a when fitted to the flat portion 26a, as will be described later.
  • One rib 60d is bent in an L-shaped cross section to form an engaging portion 60b.
  • the electrical equipment box 60 is inserted from above at the time of assembly, and the groove 60a fits the flat part 26a of the holding plate 26 so that the relative position between the electrical equipment box 60 and the heat exchanger 24 is positioned.
  • the engaging portion 60b engages with the bent portion 26b of the holding plate 26, and the holding plate 26 is prevented from coming off.
  • the assembling workability of the outdoor unit 1 is improved and the groove portion 60a and the flat portion 26a are in surface contact to fix the heat exchanger 24. Therefore, deformation of the heat exchanger 24 after fixing can be prevented. .
  • the lower end of at least one side wall of the groove part 60a consists of an inclined surface.
  • the protrusion part 60e is provided in multiple (3 places in this embodiment) on the surrounding wall of the electrical equipment box 50. As shown in FIG. Thereby, the holding plate 26 can be fitted to the different groove portions 60a for the plurality of types of outdoor units 1 having different shapes of the heat exchanger 24, and the electrical box 50 can be shared.
  • outside air flows into the blower chamber 14 through the left side intake port 11LS, the rear intake port (not shown), and the right side intake port 11RS by the suction force.
  • the outside air that has flowed into the blower chamber 14 is heat-exchanged by the heat exchanger 24, circulates through the blower chamber 14, and is blown out from the blower outlet 12.
  • FIG. 3 and 4 are perspective views of the electrical box 50.
  • FIG. A heat sink 52 is provided at the bottom of the bottom surface of the electrical box 50 so as to face the blower chamber 14, and the heat sink 52 is cooled by the airflow flowing through the blower chamber 14. Thereby, the inside of the electrical box 50 is cooled via the heat sink 52.
  • the exhaust duct 54 has an exhaust port 53 that faces the blower chamber 14 and an outlet 55 that faces the electrical box 50.
  • the exhaust port 53 is disposed on the peripheral wall of the electrical box 50.
  • the interior of the electrical box 50 communicates with the compressor chamber 15 via the outlet 51, and the blower chamber 14 and the compressor chamber 15 communicate with each other via the exhaust duct 54. Further, the interior of the electrical box 50 communicates with the outside of the outdoor unit 10 through the outlet 57.
  • the exhaust port 53 is provided with a shielding part 53a that shields the blower 40 side. Further, the exhaust port 53 is disposed outside the front and rear ends of the blades of the blower 40 in the rotational axis direction (Y1-Y2 direction) of the blades 40.
  • FIG. 5 and 6 are a perspective view and a top sectional view for explaining the exhaust duct 54.
  • FIG. The exhaust duct 54 has a first passage 54a extending in the vertical direction (Z1-Z2 direction) and a second passage 54b extending in the left-right direction (X1-X2 direction).
  • the first passage 54a has an outlet 55 at the upper end, and a communication port 56 at the lower part of the peripheral wall. Further, the first passage 54 a and the second passage 54 b communicate with each other through the communication port 56.
  • the second passage 54b is provided with an exhaust port 53.
  • the exhaust port 53 is disposed above the communication port 56 and further away from the blower 40 than the outflow port 55.
  • the airflow flowing in from the outlet 55 descends the first passage 54a in the Z2 direction (arrow A1), changes the direction to the front (Y1 direction), and passes through the communication port 56 to the second passage 54b. (Arrow A2).
  • the direction is changed to the right (X1 direction) (arrow A3), and the air is exhausted to the blower chamber 14 through the exhaust port 53.
  • the airflow flowing into the rear exhaust duct 54 is similarly exhausted to the blower chamber 14. Thereby, the airflow can flow through the electrical equipment box 50 and the cooling effect of the circuit board 60 can be improved.
  • the exhaust port 53 is arranged farther from the blower 40 than the outflow port 55 and the communication port 56. For this reason, it can suppress that the airflow containing the raindrop scattered from the air blower 40 distribute
  • the communication port 56 is arranged in the lower part of the first passage 54a extending in the vertical direction, it is possible to suppress the airflow including raindrops from rising up the first passage 54a by gravity.
  • the first passage 54a and the second passage 54b are orthogonal to each other and the exhaust port 53 is disposed above the communication port 56, the air flow path is bent a plurality of times, resulting in a large pressure loss and further infiltration of raindrops. It is suppressed. Accordingly, it is possible to prevent raindrops from entering the electrical equipment box 50 through the outlet 55.
  • the first duct 54 a having the exhaust duct 54 at the upper end communicates with the second passage 54 b through the communication port 56 provided at the lower portion, and the exhaust port 53 is more than the outlet 55. It is arranged away from the blower 40 and above the communication port 56. Thereby, it can suppress that the airflow containing the raindrop which scattered from the air blower 40 distribute
  • the exhaust port 53 is arranged on the outer side in the rotation axis direction than the front and rear ends of the blades of the blower 40, raindrops scattered from the blower 40 are prevented from entering the exhaust port 53. Accordingly, it is possible to further prevent raindrops from entering the electrical equipment box 50.
  • the shielding part 53a which shields the blower 40 side is provided at the exhaust port 53, intrusion of raindrops scattered from the blower 40 from the exhaust port 53 is suppressed. Accordingly, it is possible to further prevent raindrops from entering the electrical equipment box 50.
  • the heat exchanger 24 extends in the vertical direction in which one end of the flat portion 26 a that holds the refrigerant pipe 25 arranged in parallel in the vertical direction is formed between a pair of ribs 60 c and 60 d that protrude from the peripheral wall of the electrical box 60. It is positioned by fitting with the groove 60a.
  • the bent portion 26b is formed to be bent in an L shape from one end of the flat portion 26a that fits into the groove portion 60, and the engaging portion 60b engages with the bent portion 26a of the holding plate 26 so that the holding plate 26 comes off. Stopped. For this reason, the assembling workability of the outdoor unit 1 is improved and the groove portion 60a and the flat portion 26a are in surface contact to fix the heat exchanger 24. Therefore, deformation of the heat exchanger 24 after fixing can be prevented. .
  • the upper end of the flat portion 26a can be slid along the inclined surface formed at the lower end of the side wall of the groove portion 60a.
  • the flat part 26a and the groove part 60a can be easily fitted, and the assembly workability
  • Second Embodiment 7 and 8 are a side view and a top view of the outdoor unit 10 according to the second embodiment.
  • the same part as 1st Embodiment attaches
  • exhaust ducts 84 are provided at both ends of the electrical equipment box 50 in the front-rear direction (Y1-Y2 direction).
  • the exhaust duct 84 has an exhaust port 83 facing the blower chamber 14 and an outlet 85 facing the inside of the electrical box 50.
  • the outlet 85 is disposed at the left end of the electrical box 50, and the exhaust port 83 is disposed closer to the blower 40 than the exhaust port 53.
  • the blower chamber 14 and the compressor chamber 15 communicate with each other via the exhaust duct 84, and the airflow (arrow B ⁇ b> 1) flows through the electrical box 50, so that the cooling effect of the circuit board 60 can be further improved.
  • the outflow port 85 is distribute
  • the exhaust port 83 is arranged farther from the blower 40 than the outlet 85, the airflow that has entered the exhaust port 83 from the blower 40 is decelerated in the exhaust duct 84 and raindrops reaching the outlet 85 are reduced. Is done. Thereby, it is possible to prevent raindrops from entering the electrical box 50.
  • FIG. 9 is a side view of the electrical box 50 according to the third embodiment.
  • the same part as 1st Embodiment attaches
  • the third embodiment is formed by circular small holes in which a plurality of exhaust ports 53 are arranged in the vertical and horizontal directions. Further, the number of the exhaust ports 53 arranged in the vertical direction (Z1-Z2 direction) increases as the distance from the blower 40 in the left-right direction (X1-X2 direction) increases. Thereby, since the area of the exhaust port 53 close to the blower 40 is small while securing the exhaust amount, it is possible to prevent raindrops from entering through the exhaust port 53.
  • the present invention can be used for an outdoor unit of a separate type air conditioner.

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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)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

Selon la présente invention, un conduit d'évacuation (54) comprend : un premier passage 54a formé à une extrémité dans une direction gauche-droite (direction X1-X2) d'un boîtier de composants électriques (50) et s'étendant dans une direction haut-bas (direction Z1-Z2) avec une sortie (55) faisant face à l'intérieur du boîtier de composants électriques (50) prévu au niveau d'une extrémité supérieure; et un second passage (54b) s'étendant dans la direction gauche-droite (direction X1-X2) avec une ouverture d'évacuation (53) faisant face à une chambre de soufflante d'air (14) dans laquelle est disposée une soufflante d'air (40), le premier passage (54a) et le second passage (54b) étant en communication l'un avec l'autre par l'intermédiaire d'une ouverture de communication (56) formée dans une partie inférieure de paroi périphérique du premier passage (54a), avec l'ouverture d'évacuation (53) disposée au-dessus de l'ouverture de communication (56) et plus espacée à l'écart de la soufflante d'air (40) que la sortie (55).
PCT/JP2016/051980 2015-02-25 2016-01-25 Unité extérieure de climatiseur WO2016136351A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16755101.9A EP3263997A4 (fr) 2015-02-25 2016-01-25 Unité extérieure de climatiseur
CN201680002258.2A CN106796038B (zh) 2015-02-25 2016-01-25 空气调节机的室外机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-034689 2015-02-25
JP2015034689A JP6475040B2 (ja) 2015-02-25 2015-02-25 空気調和機の室外機

Publications (1)

Publication Number Publication Date
WO2016136351A1 true WO2016136351A1 (fr) 2016-09-01

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ID=56788469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/051980 WO2016136351A1 (fr) 2015-02-25 2016-01-25 Unité extérieure de climatiseur

Country Status (4)

Country Link
EP (1) EP3263997A4 (fr)
JP (1) JP6475040B2 (fr)
CN (2) CN106796038B (fr)
WO (1) WO2016136351A1 (fr)

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EP3263997A1 (fr) 2018-01-03
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JP2016156563A (ja) 2016-09-01
CN106796038B (zh) 2019-12-27
CN106796038A (zh) 2017-05-31
JP6475040B2 (ja) 2019-02-27
CN110486848B (zh) 2021-12-07

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