WO2021176494A1 - 空気調和機の室内機 - Google Patents

空気調和機の室内機 Download PDF

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Publication number
WO2021176494A1
WO2021176494A1 PCT/JP2020/008609 JP2020008609W WO2021176494A1 WO 2021176494 A1 WO2021176494 A1 WO 2021176494A1 JP 2020008609 W JP2020008609 W JP 2020008609W WO 2021176494 A1 WO2021176494 A1 WO 2021176494A1
Authority
WO
WIPO (PCT)
Prior art keywords
main body
drain pan
indoor unit
panel
air conditioner
Prior art date
Application number
PCT/JP2020/008609
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
淳 多賀谷
優作 関
尚也 松永
辰夫 古田
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 JP2022504755A priority Critical patent/JP7399257B2/ja
Priority to PCT/JP2020/008609 priority patent/WO2021176494A1/ja
Publication of WO2021176494A1 publication Critical patent/WO2021176494A1/ja

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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate

Definitions

  • This disclosure relates to an indoor unit of an air conditioner.
  • the indoor unit and the outdoor unit are connected by a gas refrigerant pipe and a liquid refrigerant pipe.
  • a wiring inlet which is an opening for inserting a cable including a power supply line, is formed around a portion where the gas refrigerant pipe and the liquid refrigerant pipe are connected.
  • an opening for wiring a cable via a wiring inlet is formed on the bottom surface of the indoor unit.
  • a wiring cover is provided in the opening to prevent outside air from flowing into the indoor unit from the opening (see, for example, Patent Document 1).
  • the wiring cover described in Patent Document 1 has a configuration of being screwed to the housing of the indoor unit. Therefore, in order to route the cable through the wiring inlet, the screw fixing the wiring cover must be loosened and the wiring cover must be removed. Therefore, there is a problem that the workability of cable wiring is low.
  • This disclosure is made against the background of the above problems, and provides an indoor unit of an air conditioner with improved workability of cable wiring.
  • the indoor unit of the air conditioner according to the present disclosure includes a main body containing a heat exchanger and a drain pan for receiving drain water generated by the heat exchanger, and a cable connected to an external device is inserted into the indoor unit.
  • An indoor unit of an air conditioner having a wiring port formed in the main body, and a guide groove for guiding the cable inserted from the wiring port to the inside of the main body is formed in the drain pan, and the guide groove is formed.
  • the cover member for sealing is integrally molded with the drain pan.
  • a cover member that covers the cable inserted from the wiring port and the guide groove and guides the cable to the inside of the main body is integrally molded in the drain pan. Therefore, when wiring the cable through the wiring port, it is not necessary to attach / detach the cover member using a tool such as a screwdriver. As a result, the workability of cable wiring is improved.
  • FIG. 1 is a configuration diagram of an air conditioner according to an embodiment of the present disclosure.
  • the air conditioner 1 includes an indoor unit 100 and an outdoor unit 200.
  • the indoor unit 100 has an indoor heat exchanger 110.
  • the outdoor unit 200 includes a compressor 210, a flow path switching unit 220, an outdoor heat exchanger 230, and an expansion valve 240.
  • the indoor unit 100 and the outdoor unit 200 are connected by a gas refrigerant pipe 300 and a liquid refrigerant pipe 400.
  • the refrigerant circuit 2 is formed by the compressor 210, the flow path switching unit 220, the outdoor heat exchanger 230, the expansion valve 240, the indoor heat exchanger 110, and the refrigerant pipe including the gas refrigerant pipe 300 and the liquid refrigerant pipe 400 described above. ing.
  • a refrigerant which is a working fluid, circulates in the refrigerant circuit 2.
  • the compressor 210 compresses and discharges the sucked refrigerant.
  • the compressor 210 may be equipped with a compressor that can change the amount of the compressor, that is, the amount of the refrigerant delivered per unit time by arbitrarily changing the operating frequency with, for example, an inverter circuit or the like.
  • the flow path switching unit 220 switches the flow of the refrigerant in the refrigerant circuit 2, and is, for example, a four-way valve.
  • the flow path switching unit 220 is controlled by a control device (not shown).
  • the outdoor heat exchanger 230 exchanges heat between the refrigerant and the outdoor air, that is, a gas.
  • the outdoor heat exchanger 230 functions as an evaporator during the heating operation to evaporate and vaporize the refrigerant.
  • the outdoor heat exchanger 230 functions as a condenser during the cooling operation to condense and liquefy the refrigerant.
  • Outdoor air is supplied to the outdoor heat exchanger 230 by a fan (not shown).
  • the expansion valve 240 is a valve that reduces the pressure of the refrigerant flowing in the refrigerant circuit 2.
  • the expansion valve 240 is composed of, for example, an electronic expansion valve, the opening degree is adjusted based on an instruction of a control device (not shown).
  • the indoor heat exchanger 110 exchanges heat between the refrigerant and the indoor air or gas to be air-conditioned.
  • the indoor heat exchanger 110 functions as a condenser during the heating operation to condense and liquefy the refrigerant.
  • the indoor heat exchanger 110 functions as an evaporator during the cooling operation to evaporate and vaporize the refrigerant.
  • Indoor air is supplied to the indoor heat exchanger 110 by a fan (not shown).
  • the solid arrow indicates the flow of the refrigerant during the cooling operation
  • the dotted arrow indicates the flow of the refrigerant during the heating operation.
  • FIG. 2 and 3 are perspective views of the indoor unit of the air conditioner according to the embodiment of the present disclosure.
  • 2 and 3 show the indoor unit 100 from the bottom side.
  • FIG. 3 shows a state in which the decorative panel is removed from the indoor unit.
  • the indoor unit 100 is an embedded indoor unit that is attached to the ceiling of the space subject to air conditioning.
  • the indoor unit 100 has a main body 10 and a decorative panel 20.
  • the indoor unit 100 is attached to the ceiling so that the main body 10 is located behind the ceiling and the decorative panel 20 is exposed to the air-conditioned space of the indoor unit 100.
  • the main body 10 has a cubic shape as a whole, and has a first main body side surface 10A, a second main body side surface 10B, a third main body side surface 10C, and a fourth main body side surface 10D.
  • the first main body side surface 10A and the second main body side surface 10B extend in a direction orthogonal to each other
  • the third main body side surface 10C and the fourth main body side surface 10D extend in a direction orthogonal to each other
  • the first main body side surface 10A and the third main body side surface 10C extend in a direction orthogonal to each other.
  • the second main body side surface 10B and the fourth main body side surface 10D extend in parallel.
  • the above-mentioned indoor heat exchanger 110 is housed inside the main body 10.
  • a drain pan 30 is provided at the lower part of the main body 10 of the indoor unit 100.
  • the drain pan 30 is a member that receives the drain water generated by the indoor heat exchanger 110 described above.
  • FIG. 4 is an exploded perspective view showing the drain pan of the indoor unit of the air conditioner according to the embodiment of the present disclosure.
  • FIG. 4 shows the drain pan 30 from the bottom surface side of the indoor unit 100 as in FIGS. 2 and 3.
  • the drain pan 30 is a plate-shaped member having a substantially quadrangular shape as a whole, and has a first drain pan side surface 30A, a second drain pan side surface 30B, a third drain pan side surface 30C, and a fourth drain pan side surface 30D.
  • the first drain pan side surface 30A and the second drain pan side surface 30B extend in a direction orthogonal to each other
  • the third drain pan side surface 30C and the fourth drain pan side surface 30D extend in a direction orthogonal to each other
  • the first drain pan side surface 30A and the third drain pan side surface 30C extend in a direction orthogonal to each other
  • the second drain pan side surface 30B and the fourth drain pan side surface 30D extend in parallel.
  • the first drain pan side surface 30A is adjacent to the first main body side surface 10A of the main body 10
  • the second drain pan side surface 30B is adjacent to the second main body side surface 10B of the main body 10
  • the third drain pan The side surface 30C is adjacent to the third main body side surface 10C of the main body 10
  • the fourth drain pan side surface 30D is adjacent to the fourth main body side surface 10D of the main body 10. That is, the drain pan 30 is arranged along the inner surface of the main body 10 of the indoor unit 100.
  • a main body suction port 31 which is a circular opening is formed in the center of the drain pan 30.
  • a first main body outlet 32 is formed along the side surface 30A of the first drain pan.
  • the second main body outlet 33 is formed along the second drain pan side surface 30B.
  • the third main body outlet 34 is formed along the third drain pan side surface 30C.
  • the fourth main body outlet 35 is formed along the fourth drain pan side surface 30D.
  • the decorative panel 20 is a plate-shaped member having a square shape, and has a first side portion 20A, a second side portion 20B, a third side portion 20C, and a fourth side portion 20D. ing.
  • the first side portion 20A and the second side portion 20B extend in a direction orthogonal to each other, the third side portion 20C and the fourth side portion 20D extend in a direction orthogonal to each other, and the first side portion 20A and the third side portion 20C extend.
  • the second side portion 20B and the fourth side portion 20D extend in parallel.
  • the first side portion 20A is parallel to the first main body side surface 10A of the main body 10 of the indoor unit 100
  • the second side portion 20B is parallel to the second main body side surface 10B of the main body 10
  • the third side is parallel.
  • the portion 20C is attached so as to be parallel to the third main body side surface 10C of the main body 10 shown in FIG. 3 and the fourth side portion 20D to be parallel to the fourth main body side surface 10D of the main body 10 shown in FIG.
  • a panel suction port 21 which is an opening is formed in the center of the decorative panel 20.
  • the panel suction port 21 communicates with the main body suction port 31 shown in FIGS. 3 and 4.
  • the first panel outlet 22 is formed along the first side portion 20A and communicates with the first main body outlet 32 shown in FIGS. 3 and 4.
  • the second panel outlet 23 is formed along the second side portion 20B and communicates with the second main body outlet 33 shown in FIGS. 3 and 4.
  • the third panel outlet 24 is formed along the third side portion 20C and communicates with the third main body outlet 34 shown in FIGS. 3 and 4.
  • the fourth panel outlet 25 is formed along the fourth side portion 20D and communicates with the fourth main body outlet 35 shown in FIGS. 3 and 4.
  • the lengths of the first side portion 20A, the second side portion 20B, the third side portion 20C, and the fourth side portion 20D are the same. Further, the length L21 along the first side portion 20A of the first panel outlet 22, the length L22 along the second side portion 20B of the second panel outlet 23, and the third side of the third panel outlet 24 The length L23 along the portion 20C and the length L24 along the fourth side portion 20D of the fourth panel outlet 25 are also the same.
  • the decorative panel 20 has the same configuration on each side. Therefore, when the decorative panel 20 is attached to the main body 10, there are no restrictions on the correspondence between each side portion and each of the above-mentioned side surfaces of the main body 10. Therefore, good workability can be obtained in mounting the decorative panel 20.
  • the lateral center of the second side portion 20B and the lateral center of the second main body side surface 10B coincide with each other, and the lateral center of the third side portion 20C and the third side portion 20C.
  • the lateral centers of the three main body side surfaces 10C are the same, and the lateral centers of the fourth side portion 20D and the lateral centers of the fourth main body side surface 10D are the same.
  • the main body 10 of the indoor unit 100 is continuous with the first main body side surface 10A and extends to the inside of the main body 10, the fifth main body side surface 10E, and is continuous with the second main body side surface 10B and extends to the inside of the main body 10. And have.
  • the fifth main body side surface 10E and the sixth main body side surface 10F are continuous and extend in directions orthogonal to each other, forming a concave corner portion 11 inside the main body 10. That is, of the lateral end portions of the first main body side surface 10A, the corner portion 11 is formed at the side end portion on the side of the second main body side surface 10B.
  • the sixth main body side surface 10F is parallel to the first main body side surface 10A.
  • a gas pipe connecting portion 12 for connecting the gas refrigerant pipe 300 and a liquid pipe connecting portion 13 for connecting the liquid refrigerant pipe 400 are provided on the side surface 10F of the sixth main body.
  • FIG. 5 is an enlarged perspective view of a part of the indoor unit of the air conditioner according to the embodiment of the present disclosure.
  • FIG. 5 shows the indoor unit 100 from the bottom side as in FIGS. 2 and 3.
  • a wiring port 19 is formed below the gas pipe connecting portion 12 and the liquid pipe connecting portion 13. The power supply line connected to the external device is inserted into the main body 10 and taken out from the main body 10 via the wiring port 19.
  • the drain pan 30 is provided with a cable cover 36 which is a cover member.
  • the cable cover 36 is integrally molded with the drain pan 30 by insert molding into the drain pan 30. As shown in FIG. 4, the cable cover 36 is insert-molded into the cable guide groove 37 formed between the first drain pan side surface 30A and the second drain pan side surface 30B.
  • the cable cover 36 has a covering portion 36A and a guide portion 36B. As shown in FIG. 5, the covering portion 36A is located substantially in the same plane as the bottom surface 30E of the drain pan 30.
  • the covering portion 36A covers the cable guide groove 37, and therefore also covers the cable routed through the cable guide groove 37.
  • the guide portion 36B faces the cable guide groove 37. Therefore, the cable inserted from the wiring port 19 is easily guided to the inside of the main body 10 by the guide portion 36B and the cable guide groove 37.
  • FIG. 6 is an enlarged perspective view showing a part of the indoor unit of the air conditioner according to the embodiment of the present disclosure.
  • FIG. 6 shows the indoor unit 100 from diagonally above.
  • the corner portion 11 formed by the fifth main body side surface 10E and the sixth main body side surface 10F is located at the side end portion of the first main body side surface 10A. Therefore, as shown in FIG. 3, the lateral length L11 of the first main body side surface 10A is the lateral length L12 of the second main body side surface 10B, the lateral length L13 of the third main body side surface 10C, and It is shorter than the lateral length L14 of the fourth main body side surface 10D.
  • the length L21 of the first panel outlet 22 of the decorative panel 20 is the same.
  • the end portion of the first panel outlet 22 is exposed at the corner portion 11.
  • the end of the first panel outlet 22 is shown by a dotted line.
  • a seal member 40 is provided to cover the end of the exposed first panel outlet 22.
  • the cable inserted from the wiring port 19 and the cable guide groove 37 are covered, and the cable cover 36 for guiding the cable into the main body 10 is integrally molded with the drain pan 30 by insert molding. .. Therefore, when the cable is wired through the wiring port 19, it is not necessary to attach / detach the cable cover 36 using a tool such as a screwdriver. As a result, the workability of cable wiring is improved.
  • the cover member is not arranged around the wiring port 19, the wiring port 19 can be easily visually recognized in the cable wiring work. That is, according to the present embodiment, good visibility can be obtained in the wiring work of the cable via the wiring port 19.
  • the end portion of the first panel outlet 22 of the decorative panel 20 exposed at the corner portion 11 of the main body 10 is covered with the seal member 40. Therefore, the flow of air between the air-conditioned space of the indoor unit 100 and the ceiling where the indoor unit 100 is installed is prevented.
  • 1 air exchanger, 2 refrigerant circuit 10 main body, 10A 1st main body side, 10B 2nd main body side, 10C 3rd main body side, 10D 4th main body side, 10E 5th main body side, 10F 6th main body side, 11 corners Part, 12 gas pipe connection part, 13 liquid pipe connection part, 19 wiring port, 20 decorative panel, 20A 1st side part, 20B 2nd side part, 20C 3rd side part, 20D 4th side part, 21 panel suction port , 22 1st panel outlet, 23 2nd panel outlet, 24 3rd panel outlet, 25 4th panel outlet, 30 drain pan, 30A 1st drain pan side surface, 30B 2nd drain pan side surface, 30C 3rd drain pan side surface, 30D 4th drain pan side surface, 30E bottom surface, 31 main body suction port, 32 1st main body outlet, 33 2nd main body outlet, 34 3rd main body outlet, 35 4th main body outlet, 36 cable cover, 36A covering part, 36B guide part, 37 cable guide groove

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
PCT/JP2020/008609 2020-03-02 2020-03-02 空気調和機の室内機 WO2021176494A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022504755A JP7399257B2 (ja) 2020-03-02 2020-03-02 空気調和機の室内機
PCT/JP2020/008609 WO2021176494A1 (ja) 2020-03-02 2020-03-02 空気調和機の室内機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/008609 WO2021176494A1 (ja) 2020-03-02 2020-03-02 空気調和機の室内機

Publications (1)

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WO2021176494A1 true WO2021176494A1 (ja) 2021-09-10

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JP (1) JP7399257B2 (fi)
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337324U (fi) * 1989-08-22 1991-04-11
JPH0684215U (ja) * 1993-05-14 1994-12-02 児玉化学工業株式会社 エアコン用天井パネル
WO2016129079A1 (ja) * 2015-02-12 2016-08-18 三菱電機株式会社 空気調和機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000018635A (ja) 1998-07-03 2000-01-18 Fujitsu General Ltd 天井埋込型空気調和機
JP2000257905A (ja) 1999-03-05 2000-09-22 Fujitsu General Ltd 天井埋込型空気調和機
JP5761097B2 (ja) 2012-03-26 2015-08-12 ダイキン工業株式会社 空気調和装置の室内機
JP6299552B2 (ja) 2014-10-10 2018-03-28 株式会社富士通ゼネラル 天井埋込型空気調和機
WO2017002237A1 (ja) 2015-07-01 2017-01-05 三菱電機株式会社 室内機および空気調和装置
JP7204944B2 (ja) 2019-11-29 2023-01-16 三菱電機株式会社 冷凍サイクルユニット及び冷凍サイクル装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337324U (fi) * 1989-08-22 1991-04-11
JPH0684215U (ja) * 1993-05-14 1994-12-02 児玉化学工業株式会社 エアコン用天井パネル
WO2016129079A1 (ja) * 2015-02-12 2016-08-18 三菱電機株式会社 空気調和機

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JPWO2021176494A1 (fi) 2021-09-10
JP7399257B2 (ja) 2023-12-15

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