EP4027065B1 - Outdoor unit of refrigeration device - Google Patents

Outdoor unit of refrigeration device Download PDF

Info

Publication number
EP4027065B1
EP4027065B1 EP20865109.1A EP20865109A EP4027065B1 EP 4027065 B1 EP4027065 B1 EP 4027065B1 EP 20865109 A EP20865109 A EP 20865109A EP 4027065 B1 EP4027065 B1 EP 4027065B1
Authority
EP
European Patent Office
Prior art keywords
plate
outdoor unit
electrical substrate
opening
partition plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20865109.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4027065A4 (en
EP4027065A1 (en
Inventor
Toshihiro Mori
Hiroki Andou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP4027065A1 publication Critical patent/EP4027065A1/en
Publication of EP4027065A4 publication Critical patent/EP4027065A4/en
Application granted granted Critical
Publication of EP4027065B1 publication Critical patent/EP4027065B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—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
    • F24F1/20—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
    • F24F1/46—Component arrangements in separate 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/52—Weather protecting means, e.g. against wind, rain or snow

Definitions

  • the present disclosure relates to an outdoor unit of a refrigeration apparatus.
  • An outdoor unit of a refrigeration apparatus has been conventionally known as including a case, a fan, an electrical substrate, and a partition plate.
  • the partition plate partitions an internal space of the case into a blast chamber provided therein with the fan and a machine chamber provided therein with the electrical substrate.
  • Japanese Laid-Open Patent Publication No. 2012-145287 describes an outdoor unit including a partition plate that has a communication hole communicating with a blast chamber and a machine chamber, and a reactor attachment member supporting a reactor is provided to face the communication hole.
  • the partition plate and the communication hole form a space opened toward a rear surface of the outdoor unit, and an electrical substrate is positioned adjacent to the rear surface with respect to the opening.
  • water such as rainwater may occasionally blow into the blast chamber via a blow-out port of the outdoor unit and enter the machine chamber from the blast chamber through the communication hole in the partition plate.
  • water may wet the electrical substrate positioned adjacent to the rear surface with respect to the opening communicating with the communication hole.
  • the present disclosure proposes an outdoor unit of a refrigeration apparatus, configured to inhibit an electrical substrate from getting wet with water.
  • the case may have a blow-out port.
  • the blow-out port faces the fan.
  • the third end may be closer to the blow-out port than the fourth end.
  • a refrigeration apparatus is configured to achieve a vapor compression refrigeration cycle to cool or heat gas like air or liquid like water.
  • the refrigeration apparatus is applicable to an air conditioner, a cooling apparatus, a water heater, and the like. Description is made hereinafter to an air conditioner 100 exemplifying the refrigeration apparatus.
  • FIG. 1 is a schematic configuration diagram of the air conditioner 100 including an outdoor unit 1 according to the first embodiment of the present disclosure.
  • the air conditioner 100 is configured to achieve the vapor compression refrigeration cycle to cool or heat an interior of a building or the like.
  • the air conditioner 100 includes the outdoor unit 1 and an indoor unit 101.
  • the outdoor unit 1 and the indoor unit 101 are connected via a liquid-refrigerant connection pipe 115 and a gas-refrigerant connection pipe 116.
  • the indoor unit 101 is installed indoors and includes an indoor heat exchanger 113.
  • the outdoor unit 1 is disposed outdoors, and includes a compressor 4, an accumulator 5, a four-way switching valve 111, an outdoor heat exchanger 6, an expansion valve 112, a liquid-refrigerant shutoff valve 117, a gas-refrigerant shutoff valve 118, and a fan 7.
  • the outdoor heat exchanger 6 and the liquid-refrigerant shutoff valve 117 are connected via a liquid refrigerant pipe 119.
  • the liquid refrigerant pipe 119 is provided with the expansion valve 112.
  • the indoor heat exchanger 113 of the indoor unit 101 is connected with the compressor 4, the accumulator 5, the four-way switching valve 111, the outdoor heat exchanger 6, the expansion valve 112 of the outdoor unit 1, and the like as depicted in FIG. 1 , to constitute a refrigerant circuit 110.
  • the air conditioner 100 including the refrigerant circuit 110 thus configured causes, during cooling operation, a refrigerant to circulate in the compressor 4, the outdoor heat exchanger 6 functioning as a radiator, the expansion valve 112, the indoor heat exchanger 113 functioning as an evaporator, and the accumulator 5 in the mentioned order.
  • the air conditioner 100 causes, during heating operation, the refrigerant to circulate in the compressor 4, the indoor heat exchanger 113 functioning as a radiator, the expansion valve 112, the outdoor heat exchanger 6 functioning as an evaporator, and the accumulator 5 in the mentioned order.
  • the outdoor unit 1 further includes a case 2, a partition plate 3, a plurality of electrical substrates 8, an electrical component 9, a cover member 10, and a support plate 12 exemplifying the second plate.
  • the case 2 constitutes an exterior of the outdoor unit 1 (see FIG. 2 ).
  • the case 2 accommodates the partition plate 3, the outdoor heat exchanger 6, the fan 7, the compressor 4, the accumulator 5, the plurality of electrical substrates 8, the electrical component 9, the cover member 10, and the support plate 12.
  • FIG. 3 and FIG. 4 exclude, for convenience, the expansion valve 112, the liquid-refrigerant shutoff valve 117, the gas-refrigerant shutoff valve 118, and the liquid refrigerant pipe 119.
  • the case 2 has an internal space partitioned into a blast chamber 20 and a machine chamber 21 by the partition plate 3.
  • the blast chamber 20 accommodates the outdoor heat exchanger 6 and the fan 7.
  • the machine chamber 21 accommodates the compressor 4, the accumulator 5, the plurality of electrical substrates 8, the electrical component 9, the cover member 10, and the support plate 12.
  • the case 2 has a blow-out port 22 and a first suction port 23.
  • the blow-out port 22 communicates with the blast chamber 20.
  • the blow-out port 22 faces the fan 7.
  • the first suction port 23 is positioned opposite to the blow-out port 22 with respect to the fan 7.
  • the first suction port 23 communicates with the blast chamber 20.
  • blow-out port 22 and the first suction port 23 are arranged is assumed as an anteroposterior direction, and a direction perpendicular to the anteroposterior direction is assumed as a width direction.
  • the blow-out port 22 is positioned ahead of the fan 7.
  • the first suction port 23 is positioned behind the fan 7. Specifically, such relative positions are in conformity to direction arrows in the drawings.
  • the case 2 includes a first front panel 25, a first side plate 28, a second front panel 26, a second side plate 27, a top panel 29 (see FIG. 2 ), and a bottom frame 24.
  • the first front panel 25 constitutes part of a front surface of the case 2.
  • the first front panel 25 extends in the width direction.
  • the first front panel 25 has the blow-out port 22.
  • the blow-out port 22 depicted in FIG. 2 is covered with a blow-out grill 25A having a plurality of holes.
  • FIG. 3 excludes, for convenience, the blow-out grill 25A.
  • the first side plate 28 constitutes a side surface of the case 2.
  • the first side plate 28 is positioned opposite to the partition plate 3 with respect to the fan 7.
  • the first side plate 28 extends in the anteroposterior direction.
  • the first side plate 28 has a front end part connected to the first front panel 25.
  • the first side plate 28 has a plurality of second suction ports 28A. Each of the second suction ports 28A communicates with the blast chamber 20.
  • the second front panel 26 and the first front panel 25 constitute the front surface of the case 2, and the second front panel 26 constitutes part of a side surface adjacent to the machine chamber, of the case 2.
  • the second front panel 26, the second side plate 27, and the partition plate 3 zone the machine chamber 21.
  • the second front panel 26 has an L shape in a cross sectional view along a horizontal plane.
  • the second front panel 26 has a third suction port 26A.
  • the third suction port 26A is positioned in the side surface of the case 2, and is positioned in a lower portion of the second front panel 26 (see FIG. 4 ).
  • the third suction port 26A communicates with the machine chamber 21.
  • the second side plate 27 and the second front panel 26 constitute the side surface of the case 2, and the second side plate 27 constitutes part of a rear surface of the case 2.
  • the second side plate 27 is positioned opposite to the first side plate 28 with respect to the partition plate 3.
  • the second side plate 27 has an L shape in a cross sectional view along the horizontal plane.
  • the second side plate 27 has a rear surface portion spaced in the width direction apart from a rear end part of the first side plate 28.
  • the rear surface portion of the second side plate 27, the rear end part of the first side plate 28, a rear end part of the top panel 29, and a rear end part of the bottom frame 24 zone the first suction port 23.
  • the top panel 29 constitutes an upper surface of the case 2.
  • the bottom frame 24 constitutes a bottom surface of the case 2.
  • the partition plate 3 partitions the internal space of the case 2 into the blast chamber 20 and the machine chamber 21.
  • the partition plate 3 is disposed between the plurality of electrical substrates 8 and the fan 7 in the internal space of the case 2.
  • the partition plate 3 extends in a vertical direction and the anteroposterior direction.
  • the partition plate 3 has a plurality of holes 30.
  • the partition plate 3 is provided with the plurality of holes 30.
  • Each of the holes 30 causes the blast chamber 20 and the machine chamber 21 to communicate with each other (see FIG. 5 ).
  • the outdoor heat exchanger 6 is disposed in the blast chamber 20.
  • the outdoor heat exchanger 6 has an L shape.
  • the outdoor heat exchanger 6 is disposed along the first side plate 28 and faces the first suction port 23 in the anteroposterior direction.
  • the fan 7 is disposed in the blast chamber 20.
  • the fan 7 is positioned opposite to the first suction port 23 with respect to the outdoor heat exchanger 6.
  • the fan 7 generates an airflow passing through the outdoor heat exchanger 6.
  • the fan 7 is driven by a motor 70.
  • the fan 7 is driven to cause external air to be sucked into the blast chamber 20 via the first suction port 23 and the plurality of second suction ports 28A, pass through the outdoor heat exchanger 6, and then be discharged from the blow-out port 22.
  • the compressor 4 and the accumulator 5 are disposed in the machine chamber 21.
  • the compressor 4 is positioned opposite to the second front panel 26 with respect to the support plate 12. As depicted in FIG. 4 , the compressor 4 is positioned below the cover member 10. As depicted in FIG. 3 , the accumulator 5 is positioned between the second side plate 27 and the compressor 4. The accumulator 5 is positioned behind the cover member 10.
  • the plurality of electrical substrates 8 and the electrical component 9 are disposed in the machine chamber 21.
  • Each of the electrical substrates 8 is provided with an electronic component configured to control operation of the air conditioner.
  • the electrical component 9 is an electronic component different from the electronic component mounted on each of the electrical substrates 8, and examples thereof include a reactor.
  • the electrical substrates 8 and the electrical component 9 are supported by the cover member 10 and the support plate 12, as to be described in detail later.
  • the cover member 10 and the support plate 12 are disposed in the machine chamber 21.
  • the cover member 10 covers all the holes 30.
  • the cover member 10 is disposed above the third suction port 26A to be spaced apart therefrom.
  • the cover member 10 supports the electrical substrates 8, as to be described in detail later.
  • the support plate 12 is coupled to the cover member 10.
  • the support plate 12 supports the electrical substrates 8 and the electrical component 9, as to be described in detail later.
  • the cover member 10 includes a flat plate 11 exemplifying the first plate, and a frame wall 13 exemplifying the wall.
  • the flat plate 11 is disposed in the machine chamber 21 to be spaced apart from the partition plate 3 and cover the holes 30.
  • the flat plate 11 faces the partition plate 3 to be spaced apart therefrom in the width direction and cover all the holes 30.
  • the plurality of holes 30 allows a space S between the flat plate 11 and the partition plate 3 to communicate with the blast chamber 20 (see FIG. 5 ).
  • the flat plate 11 extends in the vertical direction and the anteroposterior direction.
  • the flat plate 11 is disposed in parallel with the partition plate 3.
  • the flat plate 11 thus has a thickness direction in parallel with a thickness direction of the partition plate 3.
  • the thickness direction of the flat plate 11 is in parallel with the width direction.
  • the flat plate 11 has a first end 11A and a second end 11B opposing the first end 11A in the anteroposterior direction (a direction perpendicular to both the vertical direction and the thickness direction of the flat plate 11).
  • the first end 11A is positioned opposite to the second front panel 26 with respect to the second end 11B.
  • the first end 11A corresponds to a rear end of the flat plate 11 and the second end 11B corresponds to a front end of the flat plate 11.
  • the first end 11A and the second end 11B interpose the plurality of holes 30 in the anteroposterior direction.
  • the first direction is a direction from a rear side to a front side.
  • a distance L1 between the holes 30 and an end surface of the second end 11B in the first direction is shorter than a distance L2 between an end surface of the first end 11A and the holes 30 in the first direction.
  • the frame wall 13 is positioned between the flat plate 11 and the partition plate 3.
  • the frame wall 13 surrounds peripheral ends of the flat plate 11 with a rear side being opened.
  • the frame wall 13 is coupled to the flat plate 11.
  • the frame wall 13 may be provided integrally with or separately from the flat plate 11.
  • the frame wall 13 extends from the flat plate 11 toward the partition plate 3 and comes into contact with the partition plate 3.
  • the frame wall 13 has a U shape in a sectional view in parallel with the partition plate 3.
  • the frame wall 13 includes a first wall 14, a second wall 15, and a third wall 16.
  • the first wall 14 in the frame wall 13 corresponds to a portion positioned between the second end 11B and the partition plate 3.
  • the first wall 14 is coupled to the second end 11B and is in contact with the partition plate 3.
  • the first wall 14 extends in the vertical direction and the width direction.
  • the first wall 14 is equal in size in the vertical direction to the flat plate 11.
  • the second wall 15 in the frame wall 13 corresponds to a portion positioned between an upper end of the flat plate 11 and the partition plate 3.
  • the second wall 15 is coupled to the upper end of the flat plate 11 and is in contact with the partition plate 3.
  • the second wall 15 extends in the first direction and the width direction.
  • the second wall 15 is equal in size in the first direction to the flat plate 11.
  • the second wall 15 has a first end 15A and a second end 15B positioned away from the first end 15A in the first direction.
  • the second end 15B is provided continuously to an upper end of the first wall 14.
  • the third wall 16 in the frame wall 13 corresponds to a portion positioned between a lower end of the flat plate 11 and the partition plate 3.
  • the third wall 16 is coupled to the lower end of the flat plate 11 and is in contact with the partition plate 3.
  • the third wall 16 is disposed to be spaced apart from the second wall 15 in the vertical direction.
  • the third wall 16 extends in the first direction and the width direction.
  • the third wall 16 is equal in size in the first direction to the flat plate 11.
  • the third wall 16 has a first end 16A and a second end 16B positioned away from the first end 16A in the first direction.
  • the first end 16A is disposed to be spaced apart from the first end 15A in the vertical direction.
  • the second end 16B is provided continuously to a lower end of the first wall 14.
  • the frame wall 13, the flat plate 11, and the partition plate 3 zone the opening 17. More specifically, the opening 17 is zoned by the first end 11A of the flat plate 11, the first end 15A of the second wall 15, the first end 16A of the third wall 16, and the partition plate 3. In other words, the first end 11A of the flat plate 11 zones at least part of the opening 17.
  • the opening 17 viewed in the first direction has a rectangular shape extending in the vertical direction.
  • the opening 17 is provided between the flat plate 11 and the partition plate 3.
  • the opening 17 allows the space S positioned inside the frame wall 13 to communicate with a space outside the space S.
  • the plurality of holes 30 is positioned between the first wall 14 and the opening 17. A distance between the holes 30 and the first wall 14 in the first direction is shorter than the distance between the opening 17 and the holes 30 in the first direction.
  • the plurality of holes 30 is positioned between the blow-out port 22 and the opening 17 in the first direction.
  • air flowing from the machine chamber 21 passes through the opening 17 and the holes 30 in the mentioned order, flows into the blast chamber 20, and is blown out of the blow-out port 22.
  • This configuration thus secures a smooth airflow in the case 2 to stably cool the electrical substrates 8.
  • the support plate 12 is disposed above the third suction port 26A to be spaced apart therefrom. As depicted in FIG. 5 , the support plate 12 is disposed behind the second front panel 26 to be spaced apart therefrom. The support plate 12 is coupled to the flat plate 11. The flat plate 11 can thus be enhanced in strength.
  • the support plate 12 may be provided integrally with or separately from the flat plate 11.
  • the support plate 12 is positioned opposite to the partition plate 3 with respect to the flat plate 11.
  • the support plate 12 according to the present embodiment is provided continuously to the second end 11B of the flat plate 11.
  • the support plate 12 extends in the width direction and the vertical direction to be perpendicular to the first direction.
  • the plurality of electrical substrates 8 includes a first electrical substrate 80 and a second electrical substrate 81.
  • the first electrical substrate 80 is away from the opening 17 in the first direction. Even when water enters the machine chamber 21 via the holes 30 in the partition plate 3, the water is discharged from the opening 17 so as to be away from the first electrical substrate 80. The first electrical substrate 80 can thus be inhibited from getting wet with water.
  • the first electrical substrate 80 is away from the plurality of holes 30 in the first direction.
  • a distance L3 between the holes 30 and the first electrical substrate 80 in the first direction is shorter than a distance L4 between the opening 17 and the first electrical substrate 80 in the first direction. This configuration secures a long distance from the opening 17 to the first electrical substrate 80 in the first direction, to inhibit water passing through the opening 17 from reaching the first electrical substrate 80.
  • the first electrical substrate 80 is positioned opposite to the opening 17 with respect to the support plate 12.
  • the first electrical substrate 80 extends in the width direction and the vertical direction to be perpendicular to the first direction.
  • the support plate 12 supports the first electrical substrate 80.
  • the support plate 12 is disposed between the third suction port 26A (see FIG. 3 ) and the flat plate 11 in the width direction, and extends along a plane perpendicular to the first direction.
  • the support plate 12 can thus support the first electrical substrate 80 at a position between the third suction port 26A (see FIG. 3 ) and the opening 17 in the width direction. This configuration allows an airflow from the third suction port 26A (see FIG. 3 ) toward the opening 17 to pass near the first electrical substrate 80, so as to stably cool the first electrical substrate 80.
  • the first electrical substrate 80 is supported by a front surface of the support plate 12. When the second front panel 26 is detached from the case 2, the first electrical substrate 80 is exposed forward. This configuration allows an installation worker or a service person to easily check wiring and voltage at the first electrical substrate 80, replace the first electrical substrate 80, and the like.
  • the second electrical substrate 81 is away from the opening 17 in the first direction.
  • the first electrical substrate 80 and the second electrical substrate 81 can thus be inhibited from getting wet with water.
  • the second electrical substrate 81 is positioned between the first electrical substrate 80 and the opening 17. More specifically, the second electrical substrate 81 is positioned between the support plate 12 and the opening 17.
  • the second electrical substrate 81 is positioned opposite to the partition plate 3 with respect to the flat plate 11.
  • the second electrical substrate 81 extends in the first direction and the vertical direction.
  • the second electrical substrate 81 is supported by the flat plate 11.
  • the second electrical substrate 81 is supported by a surface, opposite to a surface facing the opening 17, of the flat plate 11.
  • the first electrical substrate 80 and the second electrical substrate 81 can thus be disposed separately from each other for effective utilization of the space in the case 2, which achieves reduction in size of the outdoor unit 1.
  • the electrical component 9 is away from the opening 17 in the first direction.
  • the electrical component 9 is positioned opposite to the first electrical substrate 80 with respect to the support plate 12.
  • the electrical component 9 is supported by a rear surface of the support plate 12.
  • the support plate 12 thus supports the first electrical substrate 80 and the electrical component 9.
  • the single support plate 12 can thus support both the first electrical substrate 80 and the electrical component 9. This configuration achieves reduction in the number of components and reduction in length of wiring connecting the first electrical substrate 80 and the electrical component 9, in comparison to a case where the first electrical substrate 80 and the electrical component 9 are supported by separate members.
  • the first electrical substrate 80 and the electrical component 9 can be maintained by detaching the support plate 12 supporting both the first electrical substrate 80 and the electrical component 9 from the outdoor unit 1. This configuration enables smooth maintenance of the first electrical substrate 80 and the electrical component 9.
  • the partition plate 3 is provided with a cover plate 31 exemplifying the third plate.
  • the cover plate 31 is provided in the blast chamber 20.
  • the cover plate 31 is positioned opposite to the flat plate 11 with respect to the partition plate 3.
  • the present embodiment provides a plurality of cover plates 31 correspondingly to the plurality of holes 30.
  • the cover plates 31 each include a body portion 31A and a coupling portion 31B.
  • the body portion 31A faces a corresponding one of the holes 30 to be spaced apart therefrom. Water entering the blast chamber 20 thus comes into contact with the body portion 31A before passing through the hole 30. Water eventually falls into the blast chamber 20. This configuration can inhibit water from entering the hole 30 from the blast chamber 20.
  • the body portion 31A extends in the anteroposterior direction.
  • the body portion 31A has a front end connected to the coupling portion 31B.
  • the body portion 31A has a rear end 31C exemplifying the fourth end and positioned away from the partition plate 3.
  • the coupling portion 31B couples the front end of the body portion 31A and a circumferential edge of the hole 30 in the partition plate 3.
  • the coupling portion 31B extends in the width direction.
  • the coupling portion 31B has a first end connected to the front end of the body portion 31A.
  • the coupling portion 31B has a second end 31D exemplifying the third end and connected to the partition plate 3.
  • the cover plate 31 has the third end (second end 31D) connected to the partition plate 3, and the fourth end (rear end 31C) opposing the third end.
  • the cover plate 31 has an upper end and a lower end connected to the partition plate 3.
  • the second end 31D of the coupling portion 31B is closer to the blow-out port 22 than the rear end 31C of the body portion 31A.
  • the cover plate 31 is opened toward the outdoor heat exchanger 6 and has a closed end part adj acent to the blow-out port 22. Water entering the blast chamber 20 via the blow-out port 22 thus comes into contact with the second end 31D of the coupling portion 31B as a closed portion of the cover plate 31, before coming into contact with the rear end 31C of the body portion 31A as an opened portion of the cover plate 31.
  • This configuration can thus stably inhibit water entering the blast chamber 20 via the blow-out port 22 from entering the hole 30.
  • Each of the cover plates 31 according to the present embodiment is provided integrally with the partition plate 3, and is formed into a louver shape by cutting and raising work.
  • the cover plate 31 may alternatively be provided separately from the partition plate 3. In this case, the cover plate 31 is connected to the partition plate 3 by spot welding or the like.
  • the fan 7 receives driving force from the motor 70 to rotate in the normal rotation direction.
  • the fan 7 rotates in the normal rotation direction, external air is sucked into the blast chamber 20 via the first suction port 23 and the second suction ports 28A and passes through the outdoor heat exchanger 6.
  • the air having passed through the outdoor heat exchanger 6 is discharged from the blow-out port 22.
  • the first airflow F1 then rises near the first electrical substrate 80 to cool the first electrical substrate 80.
  • the first airflow F1 thereafter flows over an upper end of the support plate 12 and passes between the upper end of the support plate 12 and the top panel 29.
  • the first airflow F1 subsequently passes near the electrical component 9 and the second electrical substrate 81 to cool the electrical component 9 and the second electrical substrate 81, and then flows into the opening 17.
  • the second airflow F2 rises near the second electrical substrate 81 and the electrical component 9 to cool the second electrical substrate 81 and the electrical component 9.
  • the second airflow F2 thereafter flows into the opening 17.
  • the airflow F having flowed into the opening 17 flows in the space S between the flat plate 11 and the partition plate 3 toward the plurality of holes 30.
  • This airflow has an airflow direction in parallel with the first direction.
  • the airflow F then passes through the plurality of holes 30, is changed in terms of its airflow direction by the cover plates 31, and reaches the blast chamber 20. Air having flowed into the blast chamber 20 is discharged from the blow-out port 22 by the fan 7 being rotating.
  • rain and wind may occasionally blow into the blast chamber 20 via the blow-out port 22 when the fan 7 is stopped. In this case, rainwater comes into contact with the fan 7 to be hit toward the partition plate 3.
  • the opening 17 according to the second embodiment is positioned between the blow-out port 22 and the plurality of holes 30 in the anteroposterior direction.
  • the first end 11A corresponds to the front end of the flat plate 11 and the second end 11B corresponds to the rear end of the flat plate 11.
  • the first direction is accordingly a direction from the front side to the rear side.
  • the second embodiment can exert functional effects similar to those according to the first embodiment.
  • the distance L1 between the holes 30 and the end surface of the second end 11B in the first direction is longer than the distance L2 between the first end 11A and the holes 30 in the first direction.
  • the third embodiment can exert functional effects similar to those according to the first embodiment.
  • the distance L3 between the holes 30 and the first electrical substrate 80 in the first direction is longer than the distance L4 between the opening 17 and the first electrical substrate 80 in the first direction.
  • the support plate 12 is disposed between the holes 30 and the first end 11A in the anteroposterior direction, and is connected to a portion between the first end 11A and the second end 11B of the flat plate 11.
  • a distance between the end surface of the first end 11A and the support plate 12 in the first direction is shorter than a distance between the support plate 12 and the holes 30 in the first direction.
  • the fourth embodiment can exert functional effects similar to those according to the first embodiment.
  • the support plate 12 extends perpendicularly to the first direction and is coupled to the flat plate 11, though the support plate 12 is not limited thereto in terms of its configuration. Alternatively, the support plate 12 may extend to cross the first direction and may not be coupled to the flat plate 11.
  • the support plate 12 according to the fifth embodiment is not coupled to the flat plate 11 but is coupled to the partition plate 3.
  • the support plate 12 is provided separately from the flat plate 11 and is positioned away from the flat plate 11 in the first direction.
  • the fifth embodiment can exert functional effects similar to those according to the first embodiment.
  • the body portion 31A has a front end 31E exemplifying the fourth end and positioned away from the partition plate 3, and has a rear end connected to the coupling portion 31B.
  • the first end of the coupling portion 31B is connected to the rear end of the body portion 31A.
  • the second end 31D of the coupling portion 31B is connected to the partition plate 3.
  • the second end 31D of the coupling portion 31B is thus farther from the blow-out port 22 than the front end 31E of the body portion 31A.
  • the sixth embodiment can exert functional effects similar to those according to the first embodiment.
  • the cover plate 31 according to the seventh embodiment collectively covers the plurality of holes 30.
  • the body portion 31A faces the plurality of holes 30 to be spaced apart therefrom.
  • the seventh embodiment can exert functional effects similar to those according to the first embodiment.
  • the second wall 15 according to the eighth embodiment is shorter in size in the first direction than the flat plate 11.
  • the first end 15A of the second wall 15 is away from the first end 11A of the flat plate 11 in the first direction.
  • the opening 17 is zoned by the first end 11A of the flat plate 11, the first end 15A of the second wall 15, the upper end of the flat plate 11 positioned between the first end 11A and the first end 15A, the first end 16A of the third wall 16, and the partition plate 3.
  • the eighth embodiment can exert functional effects similar to those according to the first embodiment.
  • the third wall 16 may be shorter in size in the first direction than the flat plate 11.
  • the opening 17 according to the ninth embodiment is opened upward.
  • the first end 11A corresponds to the upper end of the flat plate 11 and the second end 11B corresponds to the lower end of the flat plate 11.
  • the first direction is accordingly a direction from an upper side to a lower side.
  • the first end 11A is slanted downward as being gradually away from the first electrical substrate 80.
  • the first electrical substrate 80 is disposed below the opening 17.
  • the ninth embodiment can exert functional effects similar to those according to the first embodiment.
  • the outdoor unit 1 includes the electrical component 9 supported by the support plate 12.
  • the outdoor unit 1 may alternatively not include the electrical component 9.
  • the outdoor unit 1 includes the second electrical substrate 81 supported by the flat plate 11.
  • the outdoor unit 1 may alternatively not include the second electrical substrate 81.
  • the outdoor unit 1 includes the cover plates 31 provided at the partition plate 3.
  • the outdoor unit 1 may alternatively not include the cover plate 31.
  • Each of the cover plates 31 according to the above first embodiment includes the body portion 31A extending in the anteroposterior direction and the coupling portion 31B extending in the width direction.
  • the cover plates 31 are not limited in terms of their shape.
  • the coupling portion 31B may alternatively have a curved shape or the like.

Landscapes

  • 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)
EP20865109.1A 2019-09-18 2020-09-18 Outdoor unit of refrigeration device Active EP4027065B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019169661A JP6974754B2 (ja) 2019-09-18 2019-09-18 冷凍装置の室外機
PCT/JP2020/035578 WO2021054464A1 (ja) 2019-09-18 2020-09-18 冷凍装置の室外機

Publications (3)

Publication Number Publication Date
EP4027065A1 EP4027065A1 (en) 2022-07-13
EP4027065A4 EP4027065A4 (en) 2022-11-02
EP4027065B1 true EP4027065B1 (en) 2024-05-22

Family

ID=74878193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20865109.1A Active EP4027065B1 (en) 2019-09-18 2020-09-18 Outdoor unit of refrigeration device

Country Status (4)

Country Link
EP (1) EP4027065B1 (zh)
JP (1) JP6974754B2 (zh)
CN (1) CN114391081B (zh)
WO (1) WO2021054464A1 (zh)

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63153034U (zh) * 1987-03-26 1988-10-07
JPH03152324A (ja) * 1989-11-09 1991-06-28 Mitsubishi Electric Corp 空気調和機の室外機
JPH09292142A (ja) * 1996-04-25 1997-11-11 Mitsubishi Heavy Ind Ltd 空気調和機の室外ユニット
JP2000046376A (ja) * 1998-07-27 2000-02-18 Mitsubishi Heavy Ind Ltd 室外ユニット及び空気調和機
JP2002022209A (ja) * 2000-07-05 2002-01-23 Fujitsu General Ltd 空気調和機の室外機
JP3829252B2 (ja) 2001-06-08 2006-10-04 独立行政法人理化学研究所 蛍光蛋白質
EP1684022B1 (en) * 2003-09-25 2017-06-21 Toshiba Carrier Corporation Outdoor unit of air conditioner
JP2009097743A (ja) * 2007-10-15 2009-05-07 Panasonic Corp 空気調和機の室外ユニット
JP2009144955A (ja) * 2007-12-13 2009-07-02 Panasonic Corp 空気調和機の室外機
JP5101333B2 (ja) * 2008-02-20 2012-12-19 三菱重工業株式会社 空気調和機の室外ユニット
EP2527434B1 (en) 2010-01-22 2017-08-09 Japan Science and Technology Agency Probe reagent for measurement of proteolytic activity
JP2012137229A (ja) * 2010-12-27 2012-07-19 Panasonic Corp 空気調和機の室外機
JP5556676B2 (ja) * 2011-01-13 2014-07-23 三菱電機株式会社 空気調和機の室外ユニット
JP5849396B2 (ja) * 2011-01-31 2016-01-27 株式会社富士通ゼネラル 空気調和機の室外機
CN104024746B (zh) * 2011-12-19 2017-02-22 三菱电机株式会社 室外机以及具备该室外机的冷冻循环装置
CN104251523B (zh) * 2013-06-28 2017-02-22 邯郸美的制冷设备有限公司 空调器室外机
JP6137480B2 (ja) * 2013-09-13 2017-05-31 株式会社富士通ゼネラル 空気調和機の室外機
JP6099558B2 (ja) * 2013-12-27 2017-03-22 三菱電機株式会社 室外機
JP6203112B2 (ja) * 2014-04-25 2017-09-27 三菱電機株式会社 空気調和機の室外機
CN204153882U (zh) * 2014-08-06 2015-02-11 大金工业株式会社 空调室外机
WO2017094198A1 (ja) * 2015-12-04 2017-06-08 三菱電機株式会社 室外機
US9976759B2 (en) * 2016-02-29 2018-05-22 Johnson Controls Technology Company Rain shield for a heat exchanger component
JP6513284B2 (ja) * 2016-03-14 2019-05-15 三菱電機株式会社 空気調和機の室外機
US10731875B2 (en) * 2016-05-12 2020-08-04 Mitsubishi Electric Corporation Outdoor unit of air-conditioning apparatus
WO2018193520A1 (ja) * 2017-04-18 2018-10-25 三菱電機株式会社 室外機、空気調和機、及び、室外機の製造方法
JP2018189267A (ja) * 2017-04-28 2018-11-29 株式会社富士通ゼネラル 空気調和機の室外機

Also Published As

Publication number Publication date
EP4027065A4 (en) 2022-11-02
JP6974754B2 (ja) 2021-12-01
CN114391081A (zh) 2022-04-22
JP2021046973A (ja) 2021-03-25
EP4027065A1 (en) 2022-07-13
WO2021054464A1 (ja) 2021-03-25
CN114391081B (zh) 2023-01-03

Similar Documents

Publication Publication Date Title
EP2905549B1 (en) Outdoor unit control for air conditioner
KR20060086732A (ko) 공기조화기
KR20210063065A (ko) 냉방효율을 개선한 탈부착 창문형 에어컨
US20160033185A1 (en) Air-conditioning apparatus for vehicle
EP3594577B1 (en) Heat source unit for refrigeration device
EP4027065B1 (en) Outdoor unit of refrigeration device
US7191616B2 (en) Front suction/discharge type outdoor unit for air-conditioner and outdoor unit installation system using it
KR100654999B1 (ko) 공기조화기
KR100652805B1 (ko) 공기조화기의 실외기의 설치구조
KR20060117832A (ko) 공기조화기의 드레인팬
CN104482606B (zh) 多联式空调器室外机及多联式空调器
KR20160077835A (ko) 공기 조화기의 실외기
CN220042033U (zh) 空调器
EP4265968A1 (en) Outdoor unit of air conditioning device
CN220087761U (zh) 一种空调防窜风结构、空调以及机房散热系统
US12025324B2 (en) Outdoor unit of air conditioner
KR20190030346A (ko) 일체형 공기조화기
JPH10339478A (ja) 空調室外機
KR20070077642A (ko) 공기조화기 및 그 실내기
JPH09292142A (ja) 空気調和機の室外ユニット
KR100572597B1 (ko) 공기조화기의 실외기
KR20050112237A (ko) 공기조화기의 실외기
KR20240112498A (ko) 실외기 일체형 공기조화기
KR20060130344A (ko) 일체형 공기조화기
KR20070099308A (ko) 공기 조화기

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220405

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20220930

RIC1 Information provided on ipc code assigned before grant

Ipc: F24F 1/22 20110101ALI20220926BHEP

Ipc: F24F 1/56 20110101ALI20220926BHEP

Ipc: F24F 1/24 20110101AFI20220926BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DAIKIN INDUSTRIES, LTD.

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20230707

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240202

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020031431

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D