WO2022254479A1 - Unité intérieure et climatiseur - Google Patents

Unité intérieure et climatiseur Download PDF

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Publication number
WO2022254479A1
WO2022254479A1 PCT/JP2021/020593 JP2021020593W WO2022254479A1 WO 2022254479 A1 WO2022254479 A1 WO 2022254479A1 JP 2021020593 W JP2021020593 W JP 2021020593W WO 2022254479 A1 WO2022254479 A1 WO 2022254479A1
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WO
WIPO (PCT)
Prior art keywords
indoor unit
relay
electrostatic precipitators
wiring
control board
Prior art date
Application number
PCT/JP2021/020593
Other languages
English (en)
Japanese (ja)
Inventor
弘貴 中島
悠太 相羽
武志 川村
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2021/020593 priority Critical patent/WO2022254479A1/fr
Publication of WO2022254479A1 publication Critical patent/WO2022254479A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0076—Indoor units, e.g. fan coil units with means for purifying supplied air by electric means, e.g. ionisers or electrostatic separators
    • 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

Definitions

  • the present disclosure relates to indoor units and air conditioners.
  • Patent Literature 1 describes an air conditioner provided with a power supply for each of a plurality of charge modules and an air cleaning unit capable of individually applying a voltage to each charge module.
  • the present disclosure has been made to solve the above problems, and includes an indoor unit having a structure capable of suppressing erroneous connection of electrical wiring extending from each of a plurality of electrostatic precipitators, and such an indoor unit.
  • An object of the present invention is to provide an air conditioner.
  • One aspect of the indoor unit according to the present disclosure is an indoor unit of an air conditioner, which includes an indoor unit main body, a plurality of electrostatic precipitators attached to the indoor unit main body, and control for controlling the plurality of electrostatic precipitators. a substrate, a plurality of relay connectors paired with the plurality of electrostatic precipitators and electrically connected to electrical wiring extending from the paired electrostatic precipitators, and electrically connecting the plurality of relay connectors and the control substrate. and a relay wiring connected to the
  • One aspect of the air conditioner according to the present disclosure includes the above indoor unit and outdoor unit.
  • FIG. 1 is a perspective view showing an electrostatic precipitator assembly in an embodiment
  • FIG. 4 is a perspective view showing the electrostatic precipitator assembly in the embodiment, showing a state in which the lid of the relay box is opened.
  • FIG. 4 is an exploded perspective view showing the electrostatic precipitator assembly according to the embodiment, showing a state where the cover of the relay box is opened.
  • the drawings show the X-axis, Y-axis, and Z-axis as appropriate.
  • the X-axis indicates one of the horizontal directions.
  • the Y-axis indicates the other horizontal direction.
  • the Z-axis indicates the vertical direction.
  • the horizontal direction along the X-axis is called "first horizontal direction X”
  • the horizontal direction along the Y-axis is called "second horizontal direction Y”.
  • the first horizontal direction X, the second horizontal direction Y, and the vertical direction are directions orthogonal to each other.
  • the side (+X side) in the first horizontal direction X to which the arrow of the X axis points is referred to as "one side in the first horizontal direction”.
  • the opposite side ( ⁇ X side) to the facing side is called the “first horizontal other side”.
  • the side of the second horizontal direction Y to which the Y-axis arrow points (+Y side) is called “second horizontal direction one side”
  • the side of the second horizontal direction Y opposite to the side to which the Y-axis arrow points ( ⁇ Y side) is called the “second horizontal other side”.
  • FIG. 1 is a schematic diagram showing a schematic configuration of an air conditioner 100 according to the present embodiment.
  • the air conditioner 100 can adjust indoor air using a refrigeration cycle in which a refrigerant 40 circulates.
  • the air conditioner 100 includes an outdoor unit 10 , an indoor unit 20 and a circulation path section 30 .
  • the outdoor unit 10 is arranged outdoors.
  • the indoor unit 20 is arranged indoors.
  • the outdoor unit 10 and the indoor unit 20 are connected to each other by a circulation path section 30 through which the refrigerant 40 circulates.
  • the air conditioner 100 can adjust the temperature of the indoor air by exchanging heat between the refrigerant 40 flowing in the circulation path section 30 and the indoor air in which the indoor unit 20 is arranged.
  • the refrigerant 40 for example, a fluorine-based refrigerant or a hydrocarbon-based refrigerant having a low global warming potential (GWP) can be used.
  • GWP global warming potential
  • the outdoor unit 10 has an outdoor unit housing 11, a compressor 12, a heat exchanger 13, a flow control valve 14, a blower 15, a four-way valve 16, and an outdoor unit controller 17.
  • a compressor 12 , a heat exchanger 13 , a flow control valve 14 , a blower 15 , a four-way valve 16 , and an outdoor unit controller 17 are housed inside the outdoor unit housing 11 .
  • the outdoor unit control section 17 controls each section of the outdoor unit 10 .
  • the outdoor unit control unit 17 is, for example, a system control unit that controls the entire air conditioner 100 .
  • the compressor 12 , the heat exchanger 13 , the flow control valve 14 and the four-way valve 16 are provided in a portion of the circulation path section 30 located inside the outdoor unit housing 11 .
  • Compressor 12 , heat exchanger 13 , flow control valve 14 , and four-way valve 16 are connected by a portion of circulation path section 30 located inside outdoor unit housing 11 .
  • the four-way valve 16 is provided in a portion of the circulation path section 30 that is connected to the discharge side of the compressor 12 .
  • the four-way valve 16 can reverse the direction of the coolant 40 flowing through the circulation path section 30 by switching a part of the circulation path section 30 .
  • the path connected by the four-way valve 16 is the path indicated by the solid line in the four-way valve 16 in FIG. 1
  • the refrigerant 40 flows in the circulation path section 30 in the direction indicated by the solid arrow in FIG.
  • the path connected by the four-way valve 16 is the path indicated by the dashed line in the four-way valve 16 in FIG. 1
  • the refrigerant 40 flows in the circulation path section 30 in the direction indicated by the dashed arrow in FIG.
  • the indoor unit 20 includes an indoor unit main body 21.
  • the indoor unit main body 21 has an indoor unit housing 21a, a heat exchanger 22, and a fan 23.
  • a heat exchanger 22 and a blower 23 are housed inside the indoor unit housing 21a.
  • the indoor unit 20 is capable of a cooling operation for cooling the air in the room in which the indoor unit 20 is arranged and a heating operation for warming the air in the room in which the indoor unit 20 is arranged.
  • the refrigerant 40 flowing through the circulation path portion 30 flows in the direction indicated by the solid line arrow in FIG. That is, when the indoor unit 20 is in a cooling operation, the refrigerant 40 flowing through the circulation path portion 30 flows through the compressor 12, the heat exchanger 13 of the outdoor unit 10, the flow control valve 14, and the heat exchanger 22 of the indoor unit 20. in that order back to the compressor 12 .
  • the heat exchanger 13 inside the outdoor unit 10 functions as a condenser
  • the heat exchanger 22 inside the indoor unit 20 functions as an evaporator.
  • the refrigerant 40 flowing through the circulation path portion 30 flows in the direction indicated by the dashed line in FIG.
  • the refrigerant 40 flowing through the circulation path portion 30 flows through the compressor 12, the heat exchanger 22 of the indoor unit 20, the flow control valve 14, and the heat exchanger 13 of the outdoor unit 10. in that order back to the compressor 12 .
  • the heat exchanger 13 inside the outdoor unit 10 functions as an evaporator
  • the heat exchanger 22 inside the indoor unit 20 functions as a condenser.
  • FIG. 2 is a perspective view showing the indoor unit 20.
  • FIG. FIG. 3 is an exploded perspective view showing the indoor unit 20.
  • FIG. FIG. 4 is a cross-sectional view showing part of the indoor unit 20. As shown in FIG.
  • the indoor unit 20 in this embodiment is a ceiling-embedded indoor unit that is installed embedded in the ceiling.
  • the indoor unit main body 21 has a substantially quadrangular prism shape that is flat in the vertical direction.
  • the blower 23 arranged inside the indoor unit housing 21a of the indoor unit main body 21 has a motor 23a and an impeller 23b.
  • the impeller 23b is rotated around a rotation axis R extending in the vertical direction by the motor 23a.
  • the blower 23 rotates the impeller 23b by the motor 23a, sucks the air AR from below the impeller 23b, and sends the air to the outside in the radial direction of the impeller 23b.
  • the heat exchanger 22 is arranged to surround the radially outer side of the impeller 23b. The air AR sent radially outward of the impeller 23 b passes through the heat exchanger 22 .
  • the indoor unit 20 includes an air cleaning device 50 attached to the lower side of the indoor unit main body 21, and a decorative panel 24 attached to the lower side of the air cleaning device 50.
  • the decorative panel 24 is arranged with the air cleaning device 50 sandwiched between the indoor unit main body 21 and the vertical direction.
  • the decorative panel 24 is larger than the indoor unit main body 21 and the air cleaning device 50 when viewed in the vertical direction.
  • the indoor unit body 21 and the air cleaning device 50 are embedded in the ceiling in the room where the indoor unit 20 is installed.
  • the decorative panel 24 is exposed in the room where the indoor unit 20 is installed.
  • the air cleaning device 50 is a device that cleans the indoor air by removing dust from the indoor air where the indoor unit 20 is installed.
  • the air cleaning device 50 is provided between the indoor unit main body 21 and the decorative panel 24 in the vertical direction.
  • FIG. 5 is a perspective view showing the air cleaning device 50.
  • the air cleaning device 50 has a frame member 51 , an electrostatic precipitator assembly 60 , a control section 70 and relay wiring 80 .
  • the frame member 51 has a substantially square frame shape having sides along the first horizontal direction X and the second horizontal direction Y when viewed in the vertical direction.
  • the outer shape of the frame member 51 is the same as the outer shape of the indoor unit main body 21 .
  • the upper surface of the frame member 51 is fixed to the lower surface of the indoor unit body 21 .
  • the inside of the frame member 51 is a suction port 52 through which indoor air is sucked.
  • a plurality of outlets 53 are provided on the lower surface of the frame member 51 .
  • a pair of side portions extending along the first horizontal direction X and a pair of side portions extending along the second horizontal direction Y of the frame member 51 are provided with two outlets 53 , respectively.
  • the air sucked from the suction port 52 is blown into the room from the blowout port 53 .
  • the suction port 52 and the blowout port 53 open downward.
  • a decorative panel 24 is arranged below the suction port 52 and the blowout port 53.
  • a through hole for passing air is provided in a portion of the decorative panel 24 facing the suction port 52 and the blowout port 53. It is
  • the electrostatic precipitator assembly 60 is arranged inside the frame member 51, that is, in the suction port 52.
  • FIG. 6 is a perspective view showing the electrostatic precipitator assembly 60.
  • FIG. FIG. 7 is a perspective view showing the electrostatic precipitator assembly 60, showing a state in which a lid portion 63b of a relay box 63, which will be described later, is opened.
  • FIG. 8 is an exploded perspective view showing the electrostatic precipitator assembly 60, showing a state in which the lid portion 63b of the junction box 63 is opened.
  • the electrostatic precipitator assembly 60 has a support member 61 , a plurality of electrostatic precipitators 62 and a junction box 63 .
  • the electrostatic precipitator assembly 60 has multiple relay connectors 64 and multiple electrical wirings 66 .
  • the support member 61 is a metal plate member.
  • the plate surface of the support member 61 faces the vertical direction.
  • the support member 61 is composed of, for example, a plurality of members.
  • the support member 61 has a substantially rectangular shape elongated in the first horizontal direction X when viewed in the vertical direction.
  • the support member 61 is fixed to the frame member 51.
  • Both ends of the support member 61 in the first horizontal direction X are fixed to portions of the inner edge of the suction port 52 located on both sides in the first horizontal direction X, respectively.
  • a through-hole 61 a is provided in a portion of the support member 61 on one side (+X side) in the first horizontal direction to vertically penetrate the support member 61 .
  • the through hole 61a is a substantially square hole having sides along the first horizontal direction X and the second horizontal direction Y. As shown in FIG.
  • the support member 61 is provided with a plurality of arrangement areas 65 in which a plurality of electrostatic precipitators 62 are respectively arranged.
  • the plurality of arrangement regions 65 extend in the first horizontal direction X. As shown in FIG.
  • the plurality of arrangement regions 65 are arranged side by side in the second horizontal direction Y. As shown in FIG. Four arrangement areas 65 are provided in the present embodiment.
  • the arrangement region 65 is provided across the through hole 61a in the first horizontal direction X.
  • Each of the arrangement regions 65 is provided with one engaging hole 65a and one fixing portion 65b.
  • the engagement hole 65a is a rectangular hole penetrating through the support member 61 in the vertical direction.
  • the engagement hole 65a is provided in a portion of the support member 61 adjacent to the through hole 61a on the first horizontal direction one side (+X side).
  • Four engaging holes 65a are provided side by side in the second horizontal direction Y. As shown in FIG.
  • the fixing portion 65b is provided in a portion of the support member 61 adjacent to the through hole 61a on the other side (-X side) in the first horizontal direction.
  • Four fixing portions 65b are provided side by side in the second horizontal direction Y. As shown in FIG.
  • Each fixing portion 65b has two female screw holes 65c.
  • the plurality of electrostatic precipitators 62 are fixed to the lower surface of the support member 61.
  • the plurality of electric dust collectors 62 are attached to the indoor unit main body 21 via the support member 61 and the frame member 51 .
  • a plurality of electrostatic precipitators 62 are arranged in a plurality of arrangement regions 65 of the support member 61 .
  • Four electric dust collectors 62 are provided in this embodiment.
  • the plurality of electrostatic precipitators 62 are arranged in a row along the second horizontal direction Y. As shown in FIG.
  • the plurality of electrostatic precipitators 62 are of the same type and have the same configuration.
  • Each of the plurality of electrostatic precipitators 62 extends in the first horizontal direction X.
  • Each of the plurality of electrostatic precipitators 62 is arranged across the through hole 61a in the first horizontal direction X.
  • the end of the electrostatic precipitator 62 on the first horizontal one side (+X side) is inserted into the engaging hole 65a from below, and the first horizontal one side (+X side) of the engaging hole 65a on the upper surface of the support member 61 is inserted. side) is hooked from above.
  • the end portion of the electrostatic precipitator 62 on the other side in the first horizontal direction ( ⁇ X side) is fixed to the fixing portion 65b by two bolts 62f.
  • Each of the plurality of electric dust collectors 62 has a dust collection section 62a, a power supply section 62b, and a fixing component 62c.
  • the dust collecting part 62a extends in the first horizontal direction X.
  • the dust collecting portion 62a is arranged across the through hole 61a in the first horizontal direction X.
  • the first horizontal one-side (+X side) end of the dust collector 62a is the first horizontal one-side end of the electrostatic precipitator 62, and is hooked and held by the engagement hole 65a. Part of the air passing through the through hole 61a can pass through the dust collecting portion 62a in the vertical direction.
  • the dust collecting section 62a is provided with a discharge section that generates discharge with power from the power supply section 62b and an electrode section that generates electrostatic force with power from the power supply section 62b. .
  • the dust collecting portion 62a charges dust in the air passing through the dust collecting portion 62a by the discharge of the discharging portion.
  • the dust collecting portion 62a catches the dust in the air passing through the dust collecting portion 62a by causing the dust charged by the discharge to adhere to the electrode portion by electrostatic force.
  • the discharge generated in the discharge portion of the dust collecting portion 62a can inactivate bacteria, viruses, and the like contained in the air passing through the dust collecting portion 62a. By these, the electric dust collector 62 can purify the air passing through the dust collection part 62a.
  • the power supply section 62b is connected to the end of the dust collection section 62a on the other side (-X side) in the first horizontal direction.
  • the power source portion 62b extends to the other side in the first horizontal direction from the dust collecting portion 62a.
  • the end portion of the power source portion 62b on the other side in the first horizontal direction is the end portion of the electrostatic precipitator 62 on the other side in the first horizontal direction.
  • An end portion of the dust collection portion 62a on the other first horizontal direction side is arranged so as to overlap with an end portion on the first horizontal direction one side (+X side) of the power source portion 62b.
  • the power supply section 62b is fixed to the fixing section 65b with two bolts 62f.
  • Each of the two bolts 62f is passed through a through hole provided in the power supply section 62b from below and screwed into a female screw hole 65c provided in the fixing section 65b.
  • One bolt 62f of the two bolts 62f fixes the resin fixing part 62c together with the power supply part 62b to the fixing part 65b.
  • the fixing component 62c is positioned below the power supply section 62b.
  • Each electric dust collector 62 is provided with one electric wiring 66 . That is, four electrical wirings 66 are provided in this embodiment.
  • the electrical wiring 66 is wiring extending from the electrostatic precipitator 62 . More specifically, the electric wiring 66 extends from the end of the power supply section 62b on the other side in the first horizontal direction ( ⁇ X side) to the other side in the first horizontal direction.
  • a connector portion 66 a is provided at the tip of the electric wiring 66 . As shown in FIG. 7, the connector portions 66a of the plurality of electrical wirings 66 are connected to the plurality of relay connectors 64, respectively.
  • the connector portion 66 a is detachably connected to the relay connector 64 .
  • the lengths of the electrical wirings 66 are equal to each other.
  • the lengths of the electrical wirings 66 extending from the plurality of electrostatic precipitators 62 are equal to each other.
  • the phrase "the lengths of the electric wires are equal to each other" is not limited to the case where the lengths of the electric wires are exactly the same, but also includes the case where the lengths of the electric wires are substantially the same.
  • Each of the plurality of electric dust collectors 62 is individually detachably attached to the support member 61 .
  • the electrostatic precipitator 62 is removed from the support member 61 by removing the two bolts 62f that fix the electrostatic precipitator 62 to the fixing portion 65b and removing the connector portion 66a of the electrical wiring 66 from the relay connector 64. be able to.
  • the plurality of electric dust collectors 62 can be individually removed from the indoor unit 20 .
  • the relay box 63 is arranged in a direction perpendicular to the direction in which the plurality of electrostatic precipitators 62 are arranged, that is, in the first horizontal direction X.
  • the relay box 63 is arranged on the other side ( ⁇ X side) of the plurality of electrostatic precipitators 62 in the first horizontal direction.
  • the relay box 63 has a substantially rectangular parallelepiped box shape extending in the second horizontal direction Y. As shown in FIG. That is, the relay box 63 extends in the direction in which the plurality of electrostatic precipitators 62 are arranged.
  • the relay box 63 is fixed to the lower surface of the support member 61 at the other end in the first horizontal direction.
  • the relay box 63 accommodates at least part of the electrical wiring 66, part of the relay wiring 80, and a plurality of relay connectors 64 inside.
  • the entire portion of the electrical wiring 66 excluding the end on the side (+X side) connected to the power supply section 62 b is housed inside the junction box 63 . That is, in the present embodiment, a portion of the electrical wiring 66 , that is, the end connected to the power supply section 62 b is located outside the junction box 63 .
  • the relay box 63 has a base portion 63a fixed to the support member 61, a lid portion 63b connected to the base portion 63a so as to be openable and closable, and a canopy portion 63c provided on the lid portion 63b.
  • 6 shows the closed state of the lid portion 63b
  • FIGS. 7 and 8 show the opened state of the lid portion 63b.
  • the relative positional relationship of each part of the junction box 63 is the relative positional relationship when the lid portion 63b is closed.
  • the lid portion 63b covers the base portion 63a from below.
  • the lid portion 63b is fixed to the support member 61 with bolts in the closed state.
  • the lid portion 63b is connected to the base portion 63a via a hinge portion 63d provided at the edge portion of the base portion 63a on the other side ( ⁇ X side) in the first horizontal direction.
  • the lid portion 63b is rotatable relative to the base portion 63a about an axis extending in the second horizontal direction Y through the hinge portion 63d in a state in which fixing to the support member 61 by bolts is released.
  • the eaves portion 63c protrudes from the lid portion 63b to one side (+X side) in the first horizontal direction when the lid portion 63b is closed.
  • a plurality of eaves portions 63c are provided at intervals in the second horizontal direction Y.
  • the canopy portion 63c covers a portion of the electrical wiring 66 located outside the junction box 63 from below.
  • the eaves portion 63c is arranged so that the end portion of the electrical wiring 66 on the side (+X side) connected to the power source portion 62b is aligned with the side (+X side) on which the decorative panel 24 is positioned with respect to the air cleaning device 50 in the vertical direction. -Z side).
  • the plurality of relay connectors 64 are attached to the bottom surface of the base 63 a of the relay box 63 .
  • the plurality of relay connectors 64 are exposed below the air cleaning device 50 when the cover 63b of the relay box 63 is open.
  • the plurality of relay connectors 64 are arranged in a row in the same direction as the direction in which the plurality of electrostatic precipitators 62 are arranged, that is, in the second horizontal direction Y. As shown in FIG.
  • Each of the plurality of relay connectors 64 is positioned on the first horizontal direction other side (-X side) with respect to each of the plurality of electrostatic precipitators 62 .
  • a plurality of relay connectors 64 are paired with a plurality of electrostatic precipitators 62 respectively.
  • the electrostatic precipitator 62 and the relay connector 64 arranged side by side in the first horizontal direction X form a pair.
  • four relay connectors 64 are provided. That is, in the present embodiment, four pairs of electrostatic precipitator 62 and relay connector 64 are provided.
  • Each relay connector 64 is electrically connected to an electrical wiring 66 extending from the paired electrostatic precipitator 62 .
  • the electrical wiring 66 is connected to the relay connector 64 from the second horizontal direction other side (-Y side).
  • An electrical wiring 66 is connected to the relay connector 64 while being bent toward the other side in the second horizontal direction.
  • the distance between the electrostatic precipitator 62 and the relay connector 64 that are paired is shorter than the length of each electrical wiring 66 .
  • the distance between the electrostatic precipitator 62 and the relay connector 64 is longer than the length of each electrical wiring 66 . That is, the length of the electrical wiring 66 is greater than the distance between the electric dust collector 62 provided with the electric wiring 66 and the relay connector 64 arranged adjacent to the relay connector 64 paired with the electric dust collector 62. is also short.
  • the length of the electrical wiring 66 is set to the minimum required length for connecting the paired electrostatic precipitator 62 and the relay connector 64 .
  • the control unit 70 controls multiple electrostatic precipitators 62 .
  • the controller 70 is arranged inside the frame member 51 , that is, at the suction port 52 .
  • the control unit 70 is fixed to the edge of the support member 61 of the electrostatic precipitator assembly 60 on the second horizontal direction one side (+Y side).
  • the control unit 70 is arranged side by side in the direction in which the plurality of electric dust collectors 62 are arranged, that is, in the second horizontal direction Y, with respect to the plurality of electric dust collectors 62 .
  • the controller 70 is arranged on one side (+Y side) in the second horizontal direction with respect to the plurality of electrostatic precipitators 62 .
  • the control unit 70 extends in the same direction as the direction in which the electrostatic precipitator 62 extends, that is, in the first horizontal direction X. As shown in FIG. The end of the control unit 70 on the first horizontal other side ( ⁇ X side) is positioned on the second horizontal direction one side of the relay box 63 .
  • the control unit 70 has a control board box 71 and a control board 72 .
  • the control board box 71 has a substantially rectangular parallelepiped box shape extending in the first horizontal direction X.
  • the control board box 71 accommodates the control board 72 and part of the relay wiring 80 inside.
  • the control board box 71 has a base portion 71a fixed to the support member 61 and a lid portion 71b connected to the base portion 71a so as to be opened and closed. 3 shows a state in which the lid portion 71b is closed, and FIG. 5 shows a state in which the lid portion 71b is opened.
  • the base 71a is box-shaped and opens downward.
  • the lid portion 71b is a plate-like member that closes the opening below the base portion 71a in the closed state.
  • the lid portion 71b is fixed to the base portion 71a with bolts in the closed state.
  • the lid portion 71b is connected to the base portion 71a via a hinge portion 71c provided at the edge portion of the second horizontal direction one side (+Y side) of the base portion 71a.
  • the lid portion 71b is rotatable with respect to the base portion 71a about an axis extending in the first horizontal direction X through the hinge portion 71c in a state in which the fixing to the base portion 71a by the bolt is released.
  • the control board 72 is fixed to the upper wall of the base 71 a of the control board box 71 .
  • the control board 72 has a substantially rectangular plate shape whose plate surface faces the vertical direction and is elongated in the first horizontal direction X. As shown in FIG. A plurality of electronic components are mounted on the lower surface of the control board 72 .
  • the control board 72 is arranged side by side in the direction in which the plurality of electrostatic precipitators 62 are arranged, that is, in the second horizontal direction Y, with respect to the plurality of electrostatic precipitators 62 .
  • the control board 72 is exposed below the air cleaning device 50 when the lid portion 71b is opened.
  • a relay wiring 80 is electrically connected to the control board 72 .
  • the relay wiring 80 electrically connects the plurality of relay connectors 64 and the control board 72 .
  • the relay wiring 80 is composed of a plurality of wirings 81 .
  • Each of the plurality of wirings 81 electrically connects each of the plurality of relay connectors 64 and the control board 72 .
  • a plurality of wires 81 extend from each relay connector 64 in the relay box 63 to the second horizontal direction one side (+Y side).
  • a plurality of wires 81 are bundled to form a wire bundle 82 and are pulled out from the junction box 63 to the outside. More specifically, the wiring bundle 82 is pulled out from the relay box 63 to the second horizontal one side through a through portion 63e provided in the wall portion of the relay box 63 on the second horizontal one side.
  • the wiring bundle 82 pulled out from the junction box 63 is bent to the first horizontal direction one side (+X side), and is bent to the first horizontal direction other side ( ⁇ X side) of the control board box 71. It is inserted inside the control board box 71 through the wall. Inside the control board box 71 , the tip of the wiring bundle 82 is electrically connected to the control board 72 . Thereby, the control board 72 and the plurality of electrostatic precipitators 62 are electrically connected via the relay wiring 80 , the relay connector 64 , and the electric wiring 66 .
  • the control board 72 sends a signal to the power supply units 62b of the electric dust collectors 62 via the relay wiring 80, the relay connector 64, and the electric wiring 66 in this order based on a signal from the outdoor unit control unit 17, for example. , controls the power supplied from the power supply unit 62b to the dust collection unit 62a.
  • the control board 72 controls the multiple electrostatic precipitators 62 .
  • the control board 72 drives the electric dust collector 62 when the blower 23 of the indoor unit 20 is driven, and stops the electric dust collector 62 when the blower 23 is stopped.
  • the indoor unit 20 includes a plurality of relay connectors 64 to which electrical wiring 66 extending from a pair of electrostatic precipitators 62 is electrically connected, and the plurality of relay connectors 64 and the control board 72 are electrically connected. and a relay wiring 80 that is connected to each other.
  • the relay connector 64 for connecting the electric wiring 66 extending from the electrostatic precipitator 62 separately from the control board 72, it is possible to prevent the electric wiring 66 from being erroneously connected to another terminal on the control board 72. can be suppressed.
  • each of the plurality of relay connectors 64 by arranging each of the plurality of relay connectors 64 at a position where the electrical wiring 66 extending from the paired electrostatic precipitator 62 can be connected and the electrical wiring 66 extending from the other electrostatic precipitator 62 is difficult to connect, It is possible to prevent the electrical wiring 66 extending from the electrostatic precipitator 62 from being connected to a relay connector 64 other than the relay connector 64 that forms a pair. As compared with the case where the electrical wiring 66 is connected to the control board 72, it is possible to prevent the electrical wiring 66 extending from the plurality of electrostatic precipitators 62 from being erroneously connected.
  • the plurality of electrostatic precipitators 62 are arranged in a row.
  • the plurality of relay connectors 64 are arranged in a line in the same direction as the direction in which the plurality of electrostatic precipitators 62 are arranged. Therefore, it is easy to arrange the electrostatic precipitator 62 and the relay connector 64 to be paired side by side. Thereby, the electrical wiring 66 extending from each electrostatic precipitator 62 can be easily connected to each relay connector 64 paired with each electrostatic precipitator 62 . Therefore, erroneous connection of the electrical wirings 66 extending from the plurality of electrostatic precipitators 62 can be further suppressed.
  • the length of the electrical wiring 66 is determined by the length of the electrical dust collector 62 provided with the electrical wiring 66 and the relay connector 64 paired with the electrical dust collector 62 , which are arranged adjacent to each other. shorter than the distance to the connector 64. Therefore, the electric wiring 66 does not reach the relay connector 64 other than the relay connector 64 paired with the electric dust collector 62 provided with the electric wiring 66, and is paired with the electric dust collector 62 provided with the electric wiring 66. It is connectable only to the relay connector 64 . Therefore, erroneous connection of the electrical wirings 66 extending from the plurality of electrostatic precipitators 62 can be suppressed more preferably.
  • the lengths of the electrical wirings 66 extending from the plurality of electrostatic precipitators 62 are equal to each other. Therefore, even if any of the plurality of arrangement areas 65 has any of the arrangement areas 65 in which any of the electric dust collectors 62 is arranged, the relay connector 64 to which the electric wiring 66 reaches is the relay connector 64 paired with the electric dust collector 62 . Easy to use only. Thus, by making the plurality of electric dust collectors 62 of the same type, it is possible to suppress erroneous connection of the electric wiring 66 regardless of which arrangement region 65 the plurality of electric dust collectors 62 are arranged. .
  • each electrostatic precipitator 62 and the electric wiring 66 extending from each electrostatic precipitator 62 can have the same configuration. Thereby, replacement work of the electric dust collectors 62 can be similarly performed on any of the plurality of electric dust collectors 62 . Therefore, the maintainability of the indoor unit 20 can be improved.
  • the relay box 63 is provided inside which accommodates at least part of the electrical wiring 66 , part of the relay wiring 80 , and the plurality of relay connectors 64 . Therefore, during manufacturing of the indoor unit 20 and maintenance of the indoor unit 20 , an operator may connect the plurality of electrical wires 66 to the plurality of relay connectors 64 inside the relay box 63 . As a result, erroneous connection of the electrical wiring 66 to a terminal other than the relay connector 64 can be further suppressed, and workability of assembling the electric dust collector 62 can be improved. Therefore, erroneous connection of the electrical wirings 66 extending from the plurality of electrostatic precipitators 62 can be suppressed more preferably.
  • the relay box 63 is arranged in a direction perpendicular to the direction in which the plurality of electrostatic precipitators 62 are arranged with respect to the plurality of electrostatic precipitators 62, and the direction in which the plurality of electrostatic precipitators 62 are arranged. extends to Therefore, while housing a plurality of relay connectors 64 in the relay box 63 , each relay connector 64 can be easily arranged at a suitable position with respect to each paired electrostatic precipitator 62 .
  • part of the electrical wiring 66 is located outside the junction box 63 .
  • the junction box 63 has a canopy portion 63 c that covers a portion of the electrical wiring 66 located outside the junction box 63 . Therefore, even if part of the electrical wiring 66 is located outside the relay box 63 , it is possible to prevent the user from touching the electrical wiring 66 .
  • control board 72 is arranged side by side with respect to the plurality of electric dust collectors 62 in the direction in which the plurality of electric dust collectors 62 are arranged. Therefore, the electric dust collectors 62 other than the electric dust collectors 62 adjacent to the control board 72 can be arranged relatively away from the control board 72, and the electric wiring 66 extending from the plurality of electric dust collectors 62 can be arranged with respect to the control board 72 by mistake. Connection can be suppressed more suitably.
  • the control board 72 is arranged with respect to the plurality of electric dust collectors 62.
  • the plurality of electric dust collectors 62, relay boxes 63, and control boards 72 can be arranged with good space efficiency.
  • the end of the second horizontal direction one side (+Y side) of the relay box 63 and the end of the first horizontal direction other side ( ⁇ X side) of the control board 72 are relatively close to each other. are placed.
  • the indoor unit 20 includes the control board box 71 that accommodates the control board 72 and part of the relay wiring 80 inside. Therefore, it is possible to prevent the user or the like from touching the control board 72 . Further, if the lid portion 71b of the control board box 71 is kept closed when connecting the electric wiring 66 to the relay connector 64, the electric wiring 66 is not connected to the control board 72 by mistake.
  • each of the plurality of electric dust collectors 62 is individually detachably attached. Therefore, by appropriately removing the electric dust collectors 62, the number of the electric dust collectors 62 attached to the indoor unit main body 21 can be changed. Thereby, for example, even after installing the indoor unit 20, the number of the electric dust collectors 62 can be changed according to the user's request. Therefore, the dust collecting ability of the air cleaning device 50 can be adjusted according to the user's request.
  • the arrangement of the electrostatic precipitators 62 can be arbitrarily selected from a plurality of arrangement areas 65 .
  • the arrangement of the electric dust collectors 62 that maximizes the dust collection efficiency of the air cleaning device 50 can be selected.
  • the plurality of electric dust collectors 62 can be individually attached and detached, when some of the electric dust collectors 62 fail, only the failed electric dust collector 62 can be removed and replaced. As a result, it is not necessary to replace all of the plurality of electrostatic precipitators 62, and maintenance costs can be reduced.
  • the end of the electrostatic precipitator 62 on one side in the first horizontal direction (+X side) is not fixed with a bolt, but hooked on the engagement hole 65a and held by the support member 61. Therefore, the number of bolts for fixing the electrostatic precipitator 62 can be reduced compared to the case where both side portions of the electrostatic precipitator 62 in the first horizontal direction X are fixed with bolts. This facilitates the work of attaching and detaching the electrostatic precipitator 62 .
  • the indoor unit 20 is a ceiling-embedded indoor unit.
  • the indoor unit 20 includes an air cleaning device 50 having a plurality of electric dust collectors 62, and a decorative panel 24 arranged with the air cleaning device 50 interposed between the indoor unit main body 21.
  • a decorative panel 24 arranged with the air cleaning device 50 interposed between the indoor unit main body 21.
  • the indoor unit 20 is installed on the ceiling, conventionally, it has been difficult to replace the electrostatic precipitator 62 .
  • erroneous connection of the electrical wiring 66 can be suppressed when replacing the electrostatic precipitator 62, so that the electrostatic precipitator 62 can be easily assembled. Therefore, the work of replacing the electric dust collector 62 in the ceiling-embedded indoor unit 20 can be performed more easily than conventionally.
  • the number of electrostatic precipitators is not particularly limited.
  • the electrostatic precipitator may be any type of electrostatic precipitator.
  • a plurality of electrostatic precipitators may be arranged in any way, and may not be arranged in a line.
  • the length of the electrical wiring extending from the electrostatic precipitator may be any length as long as it can be connected to the relay connector paired with the electrostatic precipitator.
  • a plurality of electrostatic precipitators may not be individually detachable.
  • a plurality of electrostatic precipitators may be collectively attached detachably.
  • the number of relay connectors is not particularly limited as long as relay connectors paired with a plurality of electrostatic precipitators are provided.
  • the plurality of relay connectors may be arranged in any manner as long as the electrical wiring extending from the paired electrostatic precipitator can be connected to each other.
  • the relay box may be arranged in any way.
  • the relay box may house therein the entire electrical wiring extending from the electrostatic precipitator.
  • the junction box does not have to have a canopy.
  • a relay box may not be provided.
  • the control board may be arranged in any way.
  • the control board box may be arranged in any way.
  • a control board box may not be provided.
  • the indoor unit of the present disclosure may be applied to any type of indoor unit.

Abstract

Un mode de réalisation d'une unité intérieure selon la présente divulgation est une unité intérieure d'un climatiseur, comprenant : un corps d'unité intérieure ; une pluralité de collecteurs de poussière électriques fixés au corps d'unité intérieure ; une carte de commande pour commander la pluralité de collecteurs de poussière électriques ; une pluralité de connecteurs relais formant chacun une paire avec chacun de la pluralité de collecteurs de poussière électriques et auquel un fil électrique s'étendant à partir du collecteur de poussière électrique formant une paire avec celui-ci est électriquement connecté ; et un fil de relais connectant électriquement la pluralité de connecteurs relais et la carte de commande.
PCT/JP2021/020593 2021-05-31 2021-05-31 Unité intérieure et climatiseur WO2022254479A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/020593 WO2022254479A1 (fr) 2021-05-31 2021-05-31 Unité intérieure et climatiseur

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Application Number Priority Date Filing Date Title
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04281810A (ja) * 1991-03-07 1992-10-07 Daikin Ind Ltd 天井埋込形空気清浄機
JP2007143204A (ja) * 2005-11-14 2007-06-07 Max Co Ltd 設備機器及び電子機器の配線方法
JP2007216142A (ja) * 2006-02-16 2007-08-30 Toshiba Kyaria Kk 空気調和機
JP2010287516A (ja) * 2009-06-15 2010-12-24 Nissan Motor Co Ltd コネクタモジュール
JP2013138980A (ja) * 2011-12-29 2013-07-18 Daikin Industries Ltd 空気清浄ユニット
WO2015056465A1 (fr) * 2013-10-16 2015-04-23 三菱電機株式会社 Climatiseur
JP2015201330A (ja) * 2014-04-08 2015-11-12 株式会社豊田自動織機 電池パック
WO2016129079A1 (fr) * 2015-02-12 2016-08-18 三菱電機株式会社 Climatiseur

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04281810A (ja) * 1991-03-07 1992-10-07 Daikin Ind Ltd 天井埋込形空気清浄機
JP2007143204A (ja) * 2005-11-14 2007-06-07 Max Co Ltd 設備機器及び電子機器の配線方法
JP2007216142A (ja) * 2006-02-16 2007-08-30 Toshiba Kyaria Kk 空気調和機
JP2010287516A (ja) * 2009-06-15 2010-12-24 Nissan Motor Co Ltd コネクタモジュール
JP2013138980A (ja) * 2011-12-29 2013-07-18 Daikin Industries Ltd 空気清浄ユニット
WO2015056465A1 (fr) * 2013-10-16 2015-04-23 三菱電機株式会社 Climatiseur
JP2015201330A (ja) * 2014-04-08 2015-11-12 株式会社豊田自動織機 電池パック
WO2016129079A1 (fr) * 2015-02-12 2016-08-18 三菱電機株式会社 Climatiseur

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