US20250297748A1 - Control box of outdoor unit - Google Patents

Control box of outdoor unit

Info

Publication number
US20250297748A1
US20250297748A1 US18/856,667 US202218856667A US2025297748A1 US 20250297748 A1 US20250297748 A1 US 20250297748A1 US 202218856667 A US202218856667 A US 202218856667A US 2025297748 A1 US2025297748 A1 US 2025297748A1
Authority
US
United States
Prior art keywords
wall portion
ventilating opening
lid body
control box
housing
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.)
Pending
Application number
US18/856,667
Other languages
English (en)
Inventor
Hirofumi KOSAKI
Hisanori UEKI
Yudai MORIKAWA
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UEKI, Hisanori, KOSAKI, Hirofumi, MORIKAWA, Yudai
Publication of US20250297748A1 publication Critical patent/US20250297748A1/en
Pending legal-status Critical Current

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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • 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
    • 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
    • F24F1/56—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
    • 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 a control box of an outdoor unit.
  • refrigeration cycle apparatuses such as an air-conditioning apparatus, a chiller, and a water heater, in which a control box having a control substrate accommodated therein is provided inside an outdoor unit.
  • the control substrate is configured to control a compressor, a motor, and other devices of the refrigeration cycle apparatus.
  • an electrical component box including a control substrate is provided in an outdoor unit.
  • the air inlets and air outlet of the electrical component box in Patent Literature 1 are equivalent to a ventilating opening designed to maintain the temperature inside the control box within a predetermined range.
  • the control box may need to increase the opening area of the ventilating opening to maintain the temperature of electrical components accommodated therein within a range of operation guaranteed temperature.
  • the opening area of the ventilating opening increases, the small animals are more likely to enter the interior of the control box through the ventilating opening.
  • a control box of an outdoor unit includes: a housing having a side wall portion; electrical components provided in an interior of the housing; a ventilating opening provided on the side wall portion and communicating with an exterior of the housing; and a lid body provided covering the ventilating opening and having a plurality of first through holes.
  • the ventilating opening provided in communication with the exterior of the housing is closed by the lid body having the plurality of first through holes.
  • the lid body prevents small animals from easily entering the interior of the control box, and can consequently reduce the entry of the small animals into the control box through its ventilating opening. This can reduce the occurrence of an earth fault due to the small animals coming into contact with the electrical components provided in the control box.
  • FIG. 1 is a perspective view illustrating the interior of an outdoor unit according to an embodiment.
  • FIG. 2 illustrates a control box of the outdoor unit according to the embodiment when a ventilating opening is seen from the outside of the control box.
  • FIG. 3 illustrates the control box of the outdoor unit according to the embodiment when the ventilating opening is seen from the inside of the control box.
  • FIG. 4 illustrates the control box of the outdoor unit according to the embodiment with a lid body attached to the ventilating opening.
  • FIG. 5 is an enlarged view of the ventilating opening in the control box of the outdoor unit according to the embodiment when the ventilating opening is seen from the outside of the control box.
  • FIG. 6 illustrates the control box of the outdoor unit according to the embodiment with the lid body detached from the ventilating opening.
  • FIG. 7 is a perspective view illustrating the lid body according to the embodiment.
  • FIG. 8 is a side view illustrating the lid body according to the embodiment.
  • FIG. 1 is a perspective view illustrating the interior of an outdoor unit 100 according to an embodiment.
  • the outdoor unit 100 includes a control box 1 , a compressor 102 , and a transformer 103 inside a cuboid outdoor-unit housing 101 forming the outer shell.
  • One of the plates that are the sides of the outdoor-unit housing 101 is formed removable.
  • FIG. 1 illustrates the internal configuration of the outdoor unit 100 with this plate removed from the outdoor-unit housing 101 .
  • the control box 1 accommodates electrical components 12 therein.
  • the electrical components 12 include electronic components located on a control substrate. Examples of the electrical components 12 include a microcomputer including a CPU, a ROM, a RAM, and an I/O port and configured to control the compressor 102 .
  • the transformer 103 converts the voltage. A current whose voltage has been converted in the transformer 103 is used in, for example, the electrical components 12 to drive the compressor 102 .
  • the outdoor-unit housing 101 further has a heat exchanger, a flow switching device, a flow rate control device, and an outdoor fan accommodated therein, although these devices are not illustrated in the drawings.
  • the heat exchanger is configured to allow refrigerant to exchange heat with outside air external to the outdoor-unit housing 101 .
  • the flow switching device is configured to switch between refrigerant flow directions.
  • the flow rate control device is configured to reduce the refrigerant pressure.
  • the outdoor fan is configured to deliver air to the heat exchanger.
  • the compressor 102 , the flow switching device, the flow rate control device, and the heat exchanger are connected by a refrigerant pipe. Illustrations of the refrigerant pipe are also omitted.
  • the outdoor unit 100 is used as a part of the refrigeration cycle apparatus.
  • the outdoor unit 100 can be used as a heat pump heat source unit of a heat pump water heater.
  • the outdoor unit 100 is connected to a hot-water reserve tank through a heat medium pipe.
  • the outdoor unit 100 can also be used as an outdoor unit of a direct-expansion air-conditioning apparatus.
  • the outdoor unit 100 is connected to an indoor unit having a load side heat exchanger through the refrigerant pipe.
  • the outdoor unit 100 may also be used as a part of other refrigeration cycle apparatus such as a chiller, an indirect-expansion air-conditioning apparatus, or a thermal storage device.
  • FIG. 2 illustrates the control box 1 of the outdoor unit 100 according to the embodiment when a ventilating opening 13 is seen from the outside of the control box 1 .
  • FIG. 3 illustrates the control box 1 of the outdoor unit 100 according to the embodiment when the ventilating opening 13 is seen from the inside of the control box 1 .
  • FIG. 4 illustrates the control box 1 of the outdoor unit 100 according to the embodiment with a lid body 20 attached to the ventilating opening 13 .
  • the control box 1 includes a housing 10 and the ventilating opening 13 .
  • the housing 10 has a side wall portion 11 .
  • the electrical components 12 are provided inside the housing 10 .
  • the ventilating opening 13 is provided on the side wall portion 11 . Since the ventilating opening 13 penetrates the side wall portion 11 , the exterior of the housing 10 communicates with the interior of the housing 10 through the ventilating opening 13 .
  • a part of the side wall portion 11 where the ventilating opening 13 is provided, has a double structure made up of an outer side-wall portion 11 a illustrated in FIG. 2 and an inner side-wall portion 11 b illustrated in FIG. 3 .
  • the outer side-wall portion 11 a has a shape protruding toward the outside of the housing 10 .
  • a space is provided between the outer side-wall portion 11 a and the inner side-wall portion 11 b.
  • the ventilating opening 13 includes outer ventilating openings 13 a illustrated in FIG. 2 and an inner ventilating opening 13 b illustrated in FIG. 3 .
  • the outer ventilating openings 13 a penetrate the outer side-wall portion 11 a .
  • the inner ventilating opening 13 b penetrates the inner side-wall portion 11 b .
  • the outer ventilating openings 13 a communicate with the inner ventilating opening 13 b through a space provided between the outer side-wall portion 11 a and the inner side-wall portion 11 b .
  • the exterior of the housing 10 communicates with the interior of the housing 10 through the outer ventilating openings 13 a and the inner ventilating opening 13 b of the ventilating opening 13 .
  • the space provided between the outer side-wall portion 11 a and the inner side-wall portion 11 b serves as an air passage 13 c (see FIG. 3 ) of the ventilating opening 13 .
  • the outer side-wall portion 11 a and the outer ventilating openings 13 a will be described later in detail with reference to FIG. 5 .
  • the inner side-wall portion 11 b and the inner ventilating opening 13 b will be described later in detail with reference to FIG. 6 .
  • the control box 1 further includes the lid body 20 provided covering the ventilating opening 13 , and a sealing material 15 provided between the side wall portion 11 and the lid body 20 .
  • the lid body 20 is provided to close the inner ventilating opening 13 b of the ventilating opening 13 from the inside of the housing 10 .
  • the lid body 20 is screwed to the inner side-wall portion 11 b with a screw 18 .
  • the screw 18 is an upset head bolt having a hexagonal head portion.
  • the screw 18 is tightened by using a tool such as a spanner or a ratchet wrench.
  • the lid body 20 has a plurality of first through holes 21 and a handle 23 . The lid body 20 will be described later in detail with reference to FIGS. 7 and 8 .
  • the sealing material 15 is provided to seal a gap between the side wall portion 11 and the lid body 20 .
  • the sealing material 15 is made of material with elastic and sealing properties.
  • the sealing material 15 is a foamed sealing material made of ethylene-propylene rubber.
  • the outer side-wall portion 11 a is a part of the side wall portion 11 that is formed to protrude toward the outside of the housing 10 .
  • the outer side-wall portion 11 a is formed by partially pressing the side wall portion 11 of metal plate into a protruding shape. It is also allowable that an opening is provided on the side wall portion 11 , and a component with a protruding shape is attached to the side wall portion 11 as the outer side-wall portion 11 a in such a manner as to close the opening.
  • the outer side-wall portion 11 a includes a flat part in its outermost protruding portion.
  • the outer ventilating opening 13 a is provided on the flat part in the outermost protruding portion of the outer side-wall portion 11 a .
  • the outer side-wall portion 11 a has protruding portions 14 and slits 16 on the flat part in the outermost protruding portion of the outer side-wall portion 11 a .
  • the protruding portion 14 and the slit 16 are adjacent to each other. When the outer side-wall portion 11 a is viewed from the front, a lower end 14 a of the protruding portion 14 overlaps the slit 16 .
  • the protruding portion 14 is a part of the outer side-wall portion 11 a that is formed by being pressed to protrude toward the outside of the housing 10 .
  • the lower end 14 a of the protruding portion 14 protrudes from the slit 16 toward the outside of the housing 10 . This results in a gap formed between the protruding portion 14 and the slit 16 .
  • This gap formed between the protruding portion 14 and the slit 16 serves as the outer ventilating opening 13 a.
  • FIG. 6 illustrates the control box 1 of the outdoor unit 100 according to the embodiment with the lid body 20 detached from the ventilating opening 13 .
  • FIG. 6 illustrates the ventilating opening 13 seen from the inside of the control box 1 .
  • the inner ventilating opening 13 b is provided on an upper portion of the inner side-wall portion 11 b .
  • the outer ventilating opening 13 a provided on the outer side-wall portion 11 a is invisible due to the inner side-wall portion 11 b .
  • the inner ventilating opening 13 b and the outer ventilating opening 13 a do not overlap each other in the horizontal direction or the vertical direction.
  • the outer side-wall portion 11 a is provided protruding toward the outside of the housing 10 . This results in a space formed on the inner side of the outer side-wall portion 11 a .
  • the inner side-wall portion 11 b is provided to partition off the space formed on the inner side of the outer side-wall portion 11 from the internal space of the housing 10 .
  • the space between the outer side-wall portion 11 a and the inner side-wall portion 11 b serves as the air passage 13 c between the outer ventilating opening 13 a (see FIG. 5 ) and the inner ventilating opening 13 b.
  • the inner ventilating opening 13 b is provided penetrating the inner side-wall portion 11 b .
  • a part of the space formed on the inner side of the outer side-wall portion 11 a is visible from the inside of the housing 10 .
  • the inner side-wall portion 11 b is provided in such a manner as to partition off a part of the space on the inner side of the outer side-wall portion 11 a from the internal space of the housing 10 .
  • the inner ventilating opening 13 b does not need to penetrate the inner side-wall portion 11 b .
  • the inner side-wall portion 11 b having such a size that a part of the space on the inner side of the outer side-wall portion 11 a is exposed may partition off the space on the inner side of the outer side-wall portion 11 a from the internal space of the housing 10 .
  • an area where the outer side-wall portion 11 a is exposed to the inside of the housing 10 serves as the inner ventilating opening 13 b.
  • the inner side-wall portion 11 b is provided with a screw hole 17 .
  • the screw 18 (see FIG. 4 ) designed to screw the lid body 20 is tightened into the screw hole 17 . It is allowable that the screw hole 17 has a barring shape with a flange formed around the hole. The method for tightening the screw 18 into the screw hole 17 will be described later with reference to the lid body 20 in FIG. 7 .
  • Fitting holes 19 are provided on the inner side-wall portion 11 b .
  • two fitting holes 19 are provided between which the screw hole 17 is interposed. It suffices that the number of the fitting hole 19 is one or more.
  • the number of fitting holes 19 is not particularly limited.
  • Protrusions 24 provided on the lid body 20 are fitted into the fitting holes 19 .
  • the protrusions 24 on the lid body 20 , and the relationship between the fitting holes 19 and the protrusions 24 on the lid body 20 are described below with reference to FIGS. 7 and 8 .
  • the lid body 20 is a metal plate and has a plurality of first through holes 21 .
  • the first through holes 21 are, for example, punch holes formed by drilling holes in the lid body 20 of metal plate.
  • the plurality of first through holes 21 are provided to prevent the temperature inside the housing 10 from increasing, while ensuring air permeability.
  • the number of first through holes 21 is not particularly limited.
  • Each of the plurality of first through holes 21 has a circular shape. The diameter of the circular shape is equal to or smaller than 3 mm. In FIG. 7 , the diameter of the first through holes 21 is smaller than the diameter of the second through hole 22 into which the screw 18 is inserted. However, it is allowable that the diameter of the second through hole 22 is smaller than the diameter of the first through holes 21 .
  • the lid body 20 has the protrusions 24 .
  • the protrusions 24 protrude from the flat part of the lid body 20 toward a direction opposite to the protruding direction of the handle 23 .
  • the protrusions 24 are formed by pressing parts of the lid body 20 into a protruding shape.
  • the lid body 20 is screwed to the inner side-wall portion 11 b with the protrusions 24 fitted into the fitting holes 19 on the inner side-wall portion 11 b .
  • the protrusions 24 on the lid body 20 and the fitting holes 19 on the inner side-wall portion 11 b are provided such that the protrusions 24 are paired with the fitting holes 19 .
  • the number of the protrusions 24 is equal to the number of the fitting holes 19 .
  • the lid body 20 is screwed to the inner side-wall portion 11 b in a firmly fixed state through pairs of the protrusions 24 and the fitting holes 19 . With this configuration, the lid body 20 is less likely to be displaced from the installation position.
  • FIG. 7 illustrates the two protrusions 24 that are provided with the second through hole 22 interposed between them.
  • Each of the two protrusions 24 illustrated in FIG. 7 is fitted into each of the two fitting holes 19 that are provided with the screw hole 17 interposed between them as illustrated in FIG. 6 .
  • these two protrusions 24 and two fitting holes 19 make two pairs.
  • the lid body 20 is fixed to the inner side-wall portion 11 b through the two pairs of protrusions 24 and fitting holes 19 , and is thus blocked from rotating when the lid body 20 is in a screwed state.
  • the housing 10 has been described above as having a double structure in which the side wall portion 11 includes the outer side-wall portion 11 a and the inner side-wall portion 11 b .
  • the housing 10 has the double structure, so that it is possible to provide the outer ventilating opening 13 a and the inner ventilating opening 13 b at positions where they do not overlap each other in the horizontal direction or the vertical direction. That is, it is possible to provide the outer ventilating opening 13 a and the inner ventilating opening 13 b at such positions that they are not linearly opposite to each other, so that the interior of the control box 1 cannot be easily reached from the outer ventilating opening 13 a through the inner ventilating opening 13 b . Even if small animals, rainwater, snow, and the like enter the interior of the outdoor-unit housing 101 , it is still possible to reduce further entry of the small animals, rainwater, snow, and the like into the control box 1 .
  • a control box 1 of an outdoor unit 100 includes: a housing 10 having a side wall portion 11 ; electrical components 12 provided in an interior of the housing 10 ; a ventilating opening 13 provided on the side wall portion 11 and communicating with an exterior of the housing 10 ; and a lid body 20 provided covering the ventilating opening 13 and having a plurality of first through holes 21 .
  • the lid body 20 is provided covering the ventilating opening 13 .
  • the lid body 20 has the plurality of first through holes 21 , which ensures air permeability of the housing 10 of the control box 1 . This can prevent the temperature inside the housing 10 from increasing to such a degree as to affect operation of the electrical components 12 .
  • the lid body 20 is provided covering the ventilating opening 13 , so that small animals such as insects and geckos are less likely to enter the interior of the housing 10 through the ventilating opening 13 . That is, the lid body 20 can reduce the entry of small animals into the control box 1 , while ensuring air permeability of the control box 1 . When entering the control box 1 , the small animals may come into contact with the electrical components 12 , which may cause an earth fault. However, in the present embodiment, the lid body 20 can reduce the entry of the small animals into the control box 1 , and can consequently reduce the occurrence of an earth fault inside the control box 1 .
  • a part of the side wall portion 11 where the ventilating opening 13 is provided has a double-wall structure made up of an outer side-wall portion 11 a and an inner side-wall portion 11 b , a space is provided between the outer side-wall portion 11 a and the inner side-wall portion 11 b , the ventilating opening 13 includes an outer ventilating opening 13 a penetrating the outer side-wall portion 11 a , and an inner ventilating opening 13 b penetrating the inner side-wall portion 11 b , the space between the outer ventilating opening 13 a and the inner ventilating opening 13 b serves as an air passage 13 c connecting the exterior of the housing 10 and the interior of the housing 10 , and the lid body 20 is provided covering the inner ventilating opening 13 b.
  • the side wall portion 11 of the housing 10 is a metal plate
  • the outer side-wall portion 11 a has a slit 16
  • a protruding portion 14 formed by bending a part of the metal plate adjacent to the slit 16 to protrude toward an outside of the housing 10
  • the outer ventilating opening 13 a is a gap formed between the slit 16 and a lower end 14 a of the protruding portion 14 .
  • the outer ventilating opening 13 a is a gap formed between the slit 16 and the lower end 14 a of the protruding portion 14 .
  • an opening part of the outer ventilating opening 13 a is covered by the protruding portion 14 .
  • the small animals can enter the outer ventilating opening 13 a only from the lower end 14 a of the protruding portion 14 , so that this configuration can further reduce the entry of small animals into the housing 10 .
  • the lid body 20 is a metal plate, and each of the plurality of first through holes 21 has a circular shape with its diameter equal to or smaller than 3 mm. This can block small animals whose length exceeds 3 mm from entering the interior of the housing 10 . This can further reduce the entry of small animals into the housing 10 .
  • the lid body 20 has a handle 23 , and the lid body 20 is provided such that the handle 23 protrudes toward the interior of the housing 10 . That is, with the help of handle 23 , it can be determined which surface of the lid body 20 is to cover the ventilating opening 13 . This can prevent the lid body 20 from covering the ventilating opening 13 in an incorrect orientation. It is possible to easily determine the orientation of the lid body 20 that covers the ventilating opening 13 . Consequently, when the lid body 20 needs to be replaced with another, the replacement work can be done quickly.
  • the side wall portion 11 has a screw hole 17
  • the lid body 20 has a second through hole 22
  • the lid body 20 is screwed to the side wall portion 11 at the screw hole 17 with a screw 18 inserted into the second through hole 22 on the lid body 20 .
  • the side wall portion 11 has a fitting hole 19
  • the lid body 20 has a protrusion 24 to be fitted into the fitting hole 19 .
  • the lid body 20 is screwed to the side wall portion 11 with the protrusion 24 fitted into the fitting hole 19 . Therefore, it is possible to prevent the lid body 20 from being displaced from the installation position.
  • the protrusion 24 is fitted into the fitting hole 19 on the side wall portion 11 , so that the lid body 20 is brought into a temporarily fixed state. This facilitates the screwing work.
  • the protrusion 24 it can be determined which surface of the lid body 20 to cover the side wall portion 11 , and also the vertical orientation of the lid body 20 can be determined. This can prevent the lid body 20 from covering the ventilating opening 13 in an incorrect orientation. It is possible to easily determine the orientation of the lid body 20 that covers the ventilating opening 13 . Consequently, when the lid body 20 needs to be replaced with another, the replacement work can be quickly performed.
  • the control box 1 of the outdoor unit 100 includes a sealing material 15 provided between the side wall portion 11 and the lid body 20 .
  • the sealing material 15 seals a gap between the side wall portion 11 and the lid body 20 . This eliminates the possibility of entry of small animals through the gap between the side wall portion 11 and the lid body 20 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US18/856,667 2022-06-16 2022-06-16 Control box of outdoor unit Pending US20250297748A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/024053 WO2023243023A1 (ja) 2022-06-16 2022-06-16 室外機の制御箱

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US20250297748A1 true US20250297748A1 (en) 2025-09-25

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US18/856,667 Pending US20250297748A1 (en) 2022-06-16 2022-06-16 Control box of outdoor unit

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US (1) US20250297748A1 (https=)
JP (1) JP7789206B2 (https=)
WO (1) WO2023243023A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250063690A1 (en) * 2022-03-18 2025-02-20 Mitsubishi Electric Corporation Heat-pump heat source apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008281286A (ja) * 2007-05-11 2008-11-20 Hitachi Appliances Inc 空気調和機の室外機
JP2013029222A (ja) * 2011-07-27 2013-02-07 Mitsubishi Electric Corp 空気調和機の室外機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173874U (ja) * 1984-04-23 1985-11-18 ダイキン工業株式会社 冷凍装置の電装箱
JP4663182B2 (ja) 2001-09-05 2011-03-30 三洋電機株式会社 電装装置及び空気調和装置
JP6475040B2 (ja) * 2015-02-25 2019-02-27 シャープ株式会社 空気調和機の室外機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008281286A (ja) * 2007-05-11 2008-11-20 Hitachi Appliances Inc 空気調和機の室外機
JP2013029222A (ja) * 2011-07-27 2013-02-07 Mitsubishi Electric Corp 空気調和機の室外機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250063690A1 (en) * 2022-03-18 2025-02-20 Mitsubishi Electric Corporation Heat-pump heat source apparatus

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WO2023243023A1 (ja) 2023-12-21
JPWO2023243023A1 (https=) 2023-12-21
JP7789206B2 (ja) 2025-12-19

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