WO2019229879A1 - Indoor unit of air conditioner - Google Patents

Indoor unit of air conditioner Download PDF

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Publication number
WO2019229879A1
WO2019229879A1 PCT/JP2018/020766 JP2018020766W WO2019229879A1 WO 2019229879 A1 WO2019229879 A1 WO 2019229879A1 JP 2018020766 W JP2018020766 W JP 2018020766W WO 2019229879 A1 WO2019229879 A1 WO 2019229879A1
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WO
WIPO (PCT)
Prior art keywords
air
wind direction
indoor unit
guide
wind
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Application number
PCT/JP2018/020766
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French (fr)
Japanese (ja)
Inventor
広陽 伊藤
Original Assignee
三菱電機株式会社
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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/JP2018/020766 priority Critical patent/WO2019229879A1/en
Priority to CN201890000521.9U priority patent/CN210832217U/en
Priority to JP2020522457A priority patent/JPWO2019229879A1/en
Publication of WO2019229879A1 publication Critical patent/WO2019229879A1/en

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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • 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

  • This invention relates to an indoor unit of an air conditioner equipped with an up-and-down wind direction plate.
  • a conventional indoor unit of an air conditioner has a suction port formed on the upper surface side of the indoor unit main body and a blower port formed on the lower surface side, and a blower fan and heat are connected to a blower path connecting the suction port and the blower port. And an exchanger.
  • An up-and-down air direction plate is arranged at the outlet to adjust the air direction of the outlet air in the vertical direction by changing the operating angle. And the air which was sent from the ventilation fan and heat-exchanged with the heat exchanger is blown out indoors by adjusting an air direction with an up-and-down air direction board.
  • the left and right ends of the vertical wind direction plate have a small amount of blown air blown from the blowout opening. For this reason, when the blowing air is deflected upward by the vertical wind direction plate, the flow along the lower surface is weakened on the lower surface side of the vertical wind direction plate. become. Therefore, during cooling operation, dew condensation occurs on the lower surfaces of the left and right ends of the up and down wind direction plates.
  • a wind direction guide that guides the blowing air to the outside is provided at the left and right ends of the guide surface, which is the upper surface when the vertical wind direction plate is operated, and the blowing of the blowing air to the outside makes it possible to wind the indoor air.
  • a technique that suppresses condensation and prevents condensation during cooling operation see, for example, Patent Document 1).
  • Patent Document 1 it is said that condensation can be prevented by providing a wind direction guide on the vertical wind direction plate.
  • condensation can be prevented only at locations where the wind speed of the blowing air is secured to some extent. Depending on the operating angle of the up-and-down wind direction plate, the wind speed of the blown air is slow.
  • the blow-out air easily peels off on the guide surface of the up-and-down wind direction plate. For this reason, the wind speed of the blowing wind on the guide surface of the vertical wind direction plate is significantly reduced. And since the flow which peeled from the guide surface entrains indoor air, the dew condensation on the guide surface of an up-and-down wind direction board becomes more remarkable. That is, when the operating angle of the up / down wind direction plate is the lower blowing angle as described above, there is a problem that the effect of the wind direction guide is diminished.
  • the present invention has been made to solve the above-described problems, and provides an indoor unit of an air conditioner that can prevent dew condensation on an up-and-down wind direction plate regardless of the operating angle of the up-and-down wind direction plate. For the purpose.
  • An indoor unit of an air conditioner according to the present invention is an air conditioner indoor unit that sucks room air from a suction port, exchanges heat with a refrigerant in a heat exchanger, and then blows out the air from the outlet to the room.
  • the upper and lower wind direction plates that adjust the wind direction of the blown air to be moved up and down, and the blown air that passes above the guide surface of the upper and lower wind direction plates is made to flow downward along the guide surface.
  • the wind direction guide is an area above the right end or left end of the upper and lower wind direction plates, and is arranged adjacent to a non-blow area where blown air is not blown from the blow outlet. is there.
  • the air blown at the end of the outlet can be made to flow along the guide surface of the vertical wind direction plate by the wind direction guide provided on the guide surface of the vertical wind direction plate regardless of the operating angle of the vertical wind direction plate. . For this reason, the backflow of the indoor air which flowed back toward the non-blowing area
  • region can be pushed out, and the dew condensation of an up-down wind direction board can be prevented.
  • FIG. 2 is an enlarged view of a portion surrounded by a dotted line A in FIG. 1.
  • FIG. 4 is an enlarged view of a portion surrounded by a dotted line B in FIG. 3.
  • FIG. 4 is a diagram corresponding to FIG. 2 for explaining a portion surrounded by a dotted line B in FIG. 3.
  • FIG. 6 is an enlarged view of a portion surrounded by a dotted line C in FIG. 5.
  • FIG. 10 is an operation explanatory diagram of the wind direction guide of FIG. 9 and shows a state in which room air is pushed back by the air blown from the wind direction guide.
  • FIG. 1 is an external view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention.
  • FIG. 2 is an explanatory diagram of an internal configuration in a central portion in the left-right direction of the indoor unit of the air conditioner according to Embodiment 1 of the present invention.
  • an indoor unit of an air conditioner (hereinafter referred to as “indoor unit”) includes an indoor unit body 1 and a front panel 2 serving as a design part.
  • a suction port 1a is formed for sucking air around the indoor unit into the indoor unit.
  • a blowout port 1b is formed for blowing the air sucked into the indoor unit to the outside of the indoor unit.
  • the indoor unit main body 1 is provided with the front side blowing wind path surface 1c and the rear side blowing wind path surface 1d which form the indoor unit wind path which leads from the suction inlet 1a to the blowing outlet 1b.
  • a heat exchanger 3 and a fan 4 are arranged in the indoor unit body 1.
  • the fan 4 takes in the indoor air 7 from the suction port 1a, passes the heat exchanger 3, and blows out the conditioned air from the outlet 1b into the room.
  • the fan 4 is a crossflow fan, and is installed horizontally in the indoor unit body 1 so that the rotation axis of the crossflow fan is in the left-right direction of the indoor unit body 1.
  • the heat exchanger 3 is disposed in the air flow generated by the fan 4 and performs heat exchange between the air sucked into the indoor unit through the suction port 1a and the refrigerant to generate conditioned air.
  • the blowout port 1b of the indoor unit is provided with a vertical wind direction plate 5 that adjusts the wind direction of the blown air blown into the room from the blowout port 1b by changing the operating angle.
  • the vertical wind direction plate 5 can be freely rotated in the vertical direction around a rotation shaft (not shown) extending in the horizontal direction of the indoor unit.
  • drive motors (not shown) attached to the left and right in the indoor unit main body 1 are connected to the rotating shaft of the vertical wind direction plate 5, and the vertical motor direction plate is operated by operating the drive motor. 5 is freely rotated in the vertical direction. Thereby, the conditioned air generated inside the indoor unit can be freely blown up and down.
  • conditioned air generated inside the indoor unit is blown out from the outlet 1b to the outside of the indoor unit, thereby realizing free air conditioning in the room where the indoor unit is installed.
  • FIG. 3 is an enlarged view of a portion surrounded by a dotted line A in FIG.
  • An electrical component box (not shown) that houses electrical components is disposed on the right side inside the indoor unit. A part of the electrical component box faces the back side of the right end of the outlet 1b, and closes the outlet 1b. Therefore, the appearance of the outlet 1b is asymmetrical, and the right end of the outlet 1b, in other words, the upper region of the right end of the up-and-down wind direction plate 5 is not blown out or blown out. Even if it is broken, it becomes the non-blowing area 6 which is a little. Therefore, the indoor air 7 flows backward into the non-blowing area 6 as shown in FIG.
  • the indoor air 7 having a high temperature including moisture is in contact with the up-and-down air direction plate 5 cooled by the cold air from the outlet 1b, so that the indoor air 7 is dew point temperature. It cools below and dew condensation occurs on the guide surface 5a which is the upper surface of the vertical wind direction plate 5.
  • the wind direction guide 8 is provided on the guide surface 5a of the vertical wind direction plate 5 in order to avoid such condensation in advance.
  • the wind direction guide 8 will be described.
  • FIG. 4 is an enlarged view of a portion surrounded by a dotted line B in FIG.
  • FIG. 5 is a diagram corresponding to FIG. 2 for explaining a portion surrounded by a dotted line B in FIG.
  • FIG. 6 is an enlarged view of a portion surrounded by a dotted line C in FIG.
  • the wind direction guide 8 causes the blown air 9 passing above the guide surface 5 a to flow downward along the guide surface 5 a, and is adjacent to the non-blow area 6 to guide the upper and lower wind direction plates 5. It is integrally formed on 5a.
  • the wind direction guide 8 includes a pair of left and right ribs 8a erected from the guide surface 5a, and a wind receiving plate 8b that connects the upper surfaces of the ribs 8a. Forming.
  • the air passage 8c becomes smaller as the cross section of the flow passage goes downstream.
  • the wind receiving plate 8b is opposed to the guide surface 5a at a position separated from the guide surface 5a, and the upstream end 8ba of the wind receiving plate 8b is It protrudes upstream from the upstream end 5aa. Further, the downstream end of the wind receiving plate 8 b faces the up and down wind direction plate 5. And the wind receiving plate 8b is arrange
  • the distances L1, L2, and L3 shown in FIG. 6 are set in consideration of efficiently and sufficiently flowing the blown air 9 flowing through the upper part of the vertical wind direction plate 5 to the vertical wind direction plate 5.
  • the distance L1 is a distance in the direction of the normal line 21 perpendicular to the tangent 20 of the guide surface 5a at the upstream end 5aa, and the upstream end 5aa of the vertical wind direction plate 5 and the wind direction guide 8 Is the distance between.
  • the distance L2 is a distance in the direction of the tangent line 20 and is a distance at which the vertical wind direction plate 5 and the wind direction guide 8 are wrapped.
  • the distance L3 is a distance in the tangential 20 direction, and is a distance by which the wind direction guide 8 protrudes from the upstream end 5aa of the vertical wind direction plate 5 to the upstream side.
  • These distances L1 and L2 are set to 5 mm to 10 mm, respectively.
  • FIG. 7 is an operation explanatory diagram of the wind direction guide for the indoor unit according to Embodiment 1 of the present invention, and shows a state in which room air flows backward to the non-blowing area.
  • FIG. 8 is an operation explanatory view of the airflow direction guide of the indoor unit of the air conditioner according to Embodiment 1 of the present invention, and the backflowed indoor air is pushed out from the downstream area of the airflow direction guide by the air blown from the airflow direction guide.
  • FIG. 8 is an operation explanatory view of the airflow direction guide of the indoor unit of the air conditioner according to Embodiment 1 of the present invention, and the backflowed indoor air is pushed out from the downstream area of the airflow direction guide by the air blown from the airflow direction guide.
  • the indoor air 7 flows backward into the non-blowing area 6.
  • the operating angle of the up-and-down wind direction plate 5 is a lower blowing angle
  • the blown air 9 does not flow along the guide surface 5 a of the up-and-down wind direction plate 5 but is separated from the guide surface 5 a. That is, the blown air 9 flows upward away from the guide surface 5 a of the up-and-down wind direction plate 5.
  • the indoor air 7 having a high temperature including moisture flows backward while touching the guide surface 5 a downstream of the blown air 9.
  • the area downstream of the blown air 9 in other words, the vicinity of the non-blow area 6 is cooled by the blown air 9. For this reason, dew condensation occurs when the indoor air 7 touches the cooled area.
  • the blown air 9 that has flowed into the wind path 8c in the wind direction guide 8 collides with the back surface of the wind receiving plate 8b and travels in the direction toward the guide surface 5a. Changed to Thereby, the blowing air 9 goes to the guide surface 5a, and becomes a flow along the guide surface 5a.
  • the wind receiving plate 8b is disposed such that the upstream end portion 8ba protrudes upstream from the upstream end portion 5aa of the vertical wind direction plate 5. For this reason, the blowing air 9 upstream from the up-and-down wind direction plate 5 is guided into the air passage 8c in the wind direction guide 8, and more blowing air 9 flows along the guide surface 5a.
  • the indoor air 7 having a high temperature including moisture flows backward to the blowing port 1 b.
  • the blown air 9 flowing along the guide surface 5a pushes out the indoor air 7 as shown in FIG.
  • the air flow path 8c becomes smaller as the cross section of the flow path goes downstream, the blown air 9 whose wind speed has increased flows along the guide surface 5a.
  • the indoor air 7 can be pushed out to the non-blowing area 6 without flowing into the area downstream of the blowing air 9. Therefore, it is possible to prevent the occurrence of condensation on the guide surface 5a in the vicinity of the non-blowing area 6 as has conventionally occurred.
  • the above-described action of the wind receiving plate 8b is an action that is exerted regardless of the operating angle of the vertical wind direction plate 5 within the operating range. For this reason, even if the operating angle of the up-and-down wind direction plate 5 is downward and the blown air 9 is easily peeled off from the guide surface 5a of the up-and-down wind direction plate 5, the blown air 9 is moved by the wind receiving plate 8b. Can flow along the guide surface 5a. Therefore, it is possible to prevent the occurrence of condensation on the guide surface 5a of the up-and-down wind direction plate 5. That is, it is possible to prevent condensation on the guide surface 5a of the vertical wind direction plate 5 even if the vertical wind direction plate 5 is performing the cooling operation at any lower blowing angle.
  • the wind direction guide 8 that causes the blown air to flow downward along the guide surface 5a of the vertical wind direction plate 5 is adjacent to the non-blowing region 6.
  • the blown air 9 flowing in the upper part of the upstream end portion 5aa of the up-and-down wind direction plate 5 can be a continuous flow along the guide surface 5a, and the moisture that has flowed back toward the non-blowing region 6
  • the indoor air 7 with a high temperature containing can be pushed out. As a result, it is possible to prevent the backflow of air and condensation in the vicinity of the non-blowing area as has conventionally occurred.
  • the operating angle of the up-and-down wind direction plate 5 is not limited, the operating angle of the up-and-down wind direction plate 5 can be set to an arbitrary operating angle.
  • the wind receiving plate 8b of the wind direction guide 8 is disposed at an angle at which the virtual extension surface 10 of the wind receiving plate 8b intersects the upper and lower wind direction plate 5, the blowing air is made to flow downward and the guide surface of the upper and lower wind direction plate 5 It can be made to flow along 5a.
  • the upstream end portion 8ba of the wind direction guide 8 is arranged so as to protrude upstream from the upstream end portion 5aa of the upper and lower wind direction plate 5, the blowout flowing over the upper end portion 5aa of the upper and lower wind direction plate 5 More air 9 can flow along the guide surface 5 a of the up-and-down wind direction plate 5. For this reason, generation
  • the wind direction guide 8 is configured to become smaller as the cross section of the air passage 8c becomes downstream, the wind speed can be increased toward the downstream, and the push-out effect of the indoor air 7 can be enhanced. .
  • the first embodiment since no condensation occurs, it is possible to continuously operate while keeping the up-and-down wind direction plate 5 at an arbitrary angle, and it is possible to improve the lower blowing performance and the comfort.
  • the non-blowing area 6 is the right end, but it may be the left end.
  • the flow path cross section of the air passage 8c is configured to become smaller from upstream to downstream. However, the same flow path cross section may be used from upstream to downstream. Also in this case, the indoor air 7 can be sufficiently pushed out by the blown air 9 from the wind direction guide 8.
  • the indoor unit of the present invention is not limited to the structure shown in FIG. 1, and various modifications can be implemented as follows, for example, without departing from the gist of the present invention.
  • FIG. 9 is a diagram showing a modification of the wind direction guide for the indoor unit according to Embodiment 1 of the present invention.
  • FIG. 10 is an explanatory diagram of the action of the wind direction guide of FIG. 9 and shows a state in which room air is pushed back by the air blown from the wind direction guide.
  • the wind direction guide 8 includes a pair of ribs 8a on the left and right, but the ribs 8a only need to support the wind receiving plate 8b.
  • the rib 8d is one.
  • the wind receiving plate 8b is provided in the upper surface of the rib 8d so that the rib 8d may be located in the center part. Even if the wind direction guide 8 has such a configuration, the same effect as described above can be obtained.
  • 1 indoor unit main body 1a inlet, 1b outlet, 1c front outlet passage surface, 1d rear outlet passage surface, 2 front panel, 3 heat exchanger, 4 fan, 5 up / down wind direction plate, 5a guide surface, 5aa upstream side End, 6 non-blowing area, 7 indoor air, 8 wind direction guide, 8a rib, 8b wind receiving plate, 8ba upstream end, 8c airway, 8d rib, 9 blowing air, 10 virtual extension surface, 11 virtual line, 20 tangents, 21 normals.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

This indoor unit of an air conditioner comprises: a vertical wind direction plate that adjusts, in the vertical direction, the direction of blowout air blown out from a blowout port; and a wind direction guide that is provided to the vertical wind direction plate and that causes the blowout air passing above a guide surface of the vertical wind direction plate to flow downward along the guide surface. The wind direction guide is disposed adjacent to a non-blowout region where the blowout air is not blown out from the blowout port, the non-blowout region being an upper region of the right-side end or the left-side end of the vertical wind direction plate.

Description

空気調和機の室内機Air conditioner indoor unit
　この発明は、上下風向板を備えた空気調和機の室内機に関するものである。 This invention relates to an indoor unit of an air conditioner equipped with an up-and-down wind direction plate.
　従来の空気調和機の室内機は、室内機本体の上面側に吸込み口が形成され、下面側に吹出し口が形成されており、吸込み口と吹出し口とを結ぶ送風路に、送風ファンと熱交換器とが配置された構成を有する。吹出し口には、動作角度を変更することで吹出し風の風向きを上下方向に調整する上下風向板が配置されている。そして、送風ファンから送られて熱交換器で熱交換された空気が、上下風向板で風向が調整されて、室内に吹出されるようになっている。 A conventional indoor unit of an air conditioner has a suction port formed on the upper surface side of the indoor unit main body and a blower port formed on the lower surface side, and a blower fan and heat are connected to a blower path connecting the suction port and the blower port. And an exchanger. An up-and-down air direction plate is arranged at the outlet to adjust the air direction of the outlet air in the vertical direction by changing the operating angle. And the air which was sent from the ventilation fan and heat-exchanged with the heat exchanger is blown out indoors by adjusting an air direction with an up-and-down air direction board.
　この種の空気調和機の室内機において、上下風向板の左右両端部は、吹出し口から吹出される吹出し風の風量が少ない。このため、上下風向板で吹出し風を上方に偏向させている場合、上下風向板の下面側では、その下面に沿う流れが弱まるので、流れが弱まった部分においてその側方から室内空気を巻き込むことになる。よって、冷房運転時においては、上下風向板の左右端部における下面に結露が発生してしまう。 In this type of air conditioner indoor unit, the left and right ends of the vertical wind direction plate have a small amount of blown air blown from the blowout opening. For this reason, when the blowing air is deflected upward by the vertical wind direction plate, the flow along the lower surface is weakened on the lower surface side of the vertical wind direction plate. become. Therefore, during cooling operation, dew condensation occurs on the lower surfaces of the left and right ends of the up and down wind direction plates.
　そこで、従来、上下風向板が動作した際に上面である案内面の左右端部に、吹出し風を外側方へと案内する風向ガイドを設け、吹出し風をより外側に流すことで室内空気の巻込みを抑制し、冷房運転時の結露を防止するようにした技術がある（例えば特許文献１参照）。 Therefore, conventionally, a wind direction guide that guides the blowing air to the outside is provided at the left and right ends of the guide surface, which is the upper surface when the vertical wind direction plate is operated, and the blowing of the blowing air to the outside makes it possible to wind the indoor air. There is a technique that suppresses condensation and prevents condensation during cooling operation (see, for example, Patent Document 1).
特開平０６－２８８６０５号公報Japanese Patent Laid-Open No. 06-288605
　特許文献１では、上下風向板に風向ガイドを設けたことで結露を防止できるとしている。しかし、結露を防止できるのは、吹出し風の風速がある程度、確保されている箇所に限定される。上下風向板の動作角度によっては吹出し風の風速が遅いため、特許文献１の構造では室内空気の巻込みを抑制する効果が薄いという問題がある。 In Patent Document 1, it is said that condensation can be prevented by providing a wind direction guide on the vertical wind direction plate. However, condensation can be prevented only at locations where the wind speed of the blowing air is secured to some extent. Depending on the operating angle of the up-and-down wind direction plate, the wind speed of the blown air is slow.
　特に、冷房運転時にてユーザーが上下風向板を下吹き方向の動作角度（以下、下吹き角度）に設定した場合は、吹出し風が上下風向板の案内面上で剥離しやすくなる。このため、上下風向板の案内面上の吹出し風の風速は著しく低下する。そして、案内面から剥離した流れは室内空気を巻込むため、上下風向板の案内面上での結露はより顕著になる。つまり、上記のように上下風向板の動作角度が下吹き角度であると、風向ガイドの効果が薄れてしまう問題がある。 In particular, when the user sets the up-and-down wind direction plate at the operating angle in the down-blowing direction (hereinafter referred to as the down-blowing angle) during the cooling operation, the blow-out air easily peels off on the guide surface of the up-and-down wind direction plate. For this reason, the wind speed of the blowing wind on the guide surface of the vertical wind direction plate is significantly reduced. And since the flow which peeled from the guide surface entrains indoor air, the dew condensation on the guide surface of an up-and-down wind direction board becomes more remarkable. That is, when the operating angle of the up / down wind direction plate is the lower blowing angle as described above, there is a problem that the effect of the wind direction guide is diminished.
　本発明は、上記のような課題を解決するためになされたもので、上下風向板の動作角度によらず、上下風向板の結露を防止することが可能な空気調和機の室内機を提供することを目的とする。 The present invention has been made to solve the above-described problems, and provides an indoor unit of an air conditioner that can prevent dew condensation on an up-and-down wind direction plate regardless of the operating angle of the up-and-down wind direction plate. For the purpose.
　本発明に係る空気調和機の室内機は、吸込み口から室内空気を吸込み、熱交換器で冷媒と熱交換した後、吹出し口から室内へ吹出す空気調和機の室内機において、吹出し口から吹出される吹出し空気の風向きを上下方向に調整する上下風向板と、上下風向板に設けられ、上下風向板の案内面の上方を通過する吹出し空気を、下向きの流れにして案内面に沿って流れさせる風向ガイドとを備え、風向ガイドは、上下風向板の右側端部または左側端部の上方領域であって、吹出し口から吹出し空気が吹出されない非吹出し領域に隣接して配置されているものである。 An indoor unit of an air conditioner according to the present invention is an air conditioner indoor unit that sucks room air from a suction port, exchanges heat with a refrigerant in a heat exchanger, and then blows out the air from the outlet to the room. The upper and lower wind direction plates that adjust the wind direction of the blown air to be moved up and down, and the blown air that passes above the guide surface of the upper and lower wind direction plates is made to flow downward along the guide surface. The wind direction guide is an area above the right end or left end of the upper and lower wind direction plates, and is arranged adjacent to a non-blow area where blown air is not blown from the blow outlet. is there.
　本発明によれば、上下風向板の動作角度によらず、上下風向板の案内面に設けた風向ガイドによって吹出し口の端部の吹出し空気を上下風向板の案内面に沿って流すことができる。このため、非吹出し領域に向けて逆流した室内空気の逆流を押し出すことができ、上下風向板の結露を防止できる。 According to the present invention, the air blown at the end of the outlet can be made to flow along the guide surface of the vertical wind direction plate by the wind direction guide provided on the guide surface of the vertical wind direction plate regardless of the operating angle of the vertical wind direction plate. . For this reason, the backflow of the indoor air which flowed back toward the non-blowing area | region can be pushed out, and the dew condensation of an up-down wind direction board can be prevented.
本発明の実施の形態１に係る空気調和機の室内機の外観図である。It is an external view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る空気調和機の室内機の左右方向の中央部における内部構成説明図である。It is internal structure explanatory drawing in the center part of the left-right direction of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. 図１において点線Ａで囲った部分の拡大図である。FIG. 2 is an enlarged view of a portion surrounded by a dotted line A in FIG. 1. 図３において点線Ｂで囲った部分の拡大図である。FIG. 4 is an enlarged view of a portion surrounded by a dotted line B in FIG. 3. 図３において点線Ｂで囲った部分を説明する図２に対応する図である。FIG. 4 is a diagram corresponding to FIG. 2 for explaining a portion surrounded by a dotted line B in FIG. 3. 図５において点線Ｃで囲った部分の拡大図である。FIG. 6 is an enlarged view of a portion surrounded by a dotted line C in FIG. 5. 本発明の実施の形態１に係る空気調和機の室内機の風向ガイドの作用説明図で、室内空気が非吹出し領域に逆流する状態を示す図である。It is action | operation explanatory drawing of the airflow direction guide of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention, and is a figure which shows the state which indoor air flows backward to a non-blowing area | region. 本発明の実施の形態１に係る空気調和機の室内機の風向ガイドの作用説明図で、逆流した室内空気が風向ガイドからの吹出し空気によって風向ガイドの下流領域から押し出された状態を示す図である。It is an action explanatory view of the wind direction guide of the indoor unit of the air harmony machine concerning Embodiment 1 of the present invention, and is a figure showing the state where the backflowed indoor air was pushed out from the downstream area of the wind direction guide by the blowing air from the wind direction guide is there. 本発明の実施の形態１に係る室内機の風向ガイドの変形例を示す図である。It is a figure which shows the modification of the wind direction guide of the indoor unit which concerns on Embodiment 1 of this invention. 図９の風向ガイドの作用説明図で、風向ガイドからの吹出し空気によって室内空気が押し返された状態を示す図である。FIG. 10 is an operation explanatory diagram of the wind direction guide of FIG. 9 and shows a state in which room air is pushed back by the air blown from the wind direction guide.
　以下、本発明の空気調和機の室内機の具体的な実施の形態について、図面を参照しつつ詳細に説明する。 Hereinafter, specific embodiments of the indoor unit of the air conditioner of the present invention will be described in detail with reference to the drawings.
実施の形態１．
　図１は、本発明の実施の形態１に係る空気調和機の室内機の外観図である。図２は、本発明の実施の形態１に係る空気調和機の室内機の左右方向の中央部における内部構成説明図である。 Embodiment 1 FIG.
FIG. 1 is an external view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention. FIG. 2 is an explanatory diagram of an internal configuration in a central portion in the left-right direction of the indoor unit of the air conditioner according to Embodiment 1 of the present invention.
　図１および図２で示されるように、空気調和機の室内機（以下、「室内機」と称する）は、室内機本体１と、意匠部品となる正面パネル２とを備えている。室内機本体１の上面には、室内機周囲の空気を室内機内部へ吸込むための吸込み口１ａが形成されている。また、室内機本体１の下部側には、室内機内部へ吸込んだ空気を室内機外部へ吹出すための吹出し口１ｂが形成されている。そして、室内機本体１は、吸込み口１ａから吹出し口１ｂへ通じる室内機風路を形成する前側吹出風路面１ｃおよび後側吹出風路面１ｄを備えている。 As shown in FIGS. 1 and 2, an indoor unit of an air conditioner (hereinafter referred to as “indoor unit”) includes an indoor unit body 1 and a front panel 2 serving as a design part. On the upper surface of the indoor unit main body 1, a suction port 1a is formed for sucking air around the indoor unit into the indoor unit. Further, on the lower side of the indoor unit main body 1, a blowout port 1b is formed for blowing the air sucked into the indoor unit to the outside of the indoor unit. And the indoor unit main body 1 is provided with the front side blowing wind path surface 1c and the rear side blowing wind path surface 1d which form the indoor unit wind path which leads from the suction inlet 1a to the blowing outlet 1b.
　室内機本体１内には、熱交換器３と、ファン４とが配置されている。ファン４は、吸込み口１ａから室内空気７を取り込み、熱交換器３を通過させて吹出し口１ｂから空調空気を室内へ吹出すものである。ファン４は、クロスフローファンであり、クロスフローファンの回転軸線が室内機本体１の左右方向となるように室内機本体１内に水平に設置されている。熱交換器３は、ファン４によって生成される空気流中に配置されており、吸込み口１ａを通って室内機内部に吸込まれた空気と冷媒との熱交換を行い、空調空気を生成する。 In the indoor unit body 1, a heat exchanger 3 and a fan 4 are arranged. The fan 4 takes in the indoor air 7 from the suction port 1a, passes the heat exchanger 3, and blows out the conditioned air from the outlet 1b into the room. The fan 4 is a crossflow fan, and is installed horizontally in the indoor unit body 1 so that the rotation axis of the crossflow fan is in the left-right direction of the indoor unit body 1. The heat exchanger 3 is disposed in the air flow generated by the fan 4 and performs heat exchange between the air sucked into the indoor unit through the suction port 1a and the refrigerant to generate conditioned air.
　また、室内機の吹出し口１ｂには、動作角度を変更することで、吹出し口１ｂから室内へ吹出される吹出し風の風向きを上下方向に調整する上下風向板５が備えられている。上下風向板５は、室内機の左右方向に延びる回動軸（図示せず）を中心に上下方向への自在な回動が可能となっている。具体的には、室内機本体１内の左右に取り付けられた駆動モータ（図示せず）が、上下風向板５の回動軸に接続されており、駆動モータが動作することにより、上下風向板５が上下方向へ自在に回動される。これにより、室内機内部で生成された空調空気を、上下方向へ自在に吹き分けることが可能となっている。 Also, the blowout port 1b of the indoor unit is provided with a vertical wind direction plate 5 that adjusts the wind direction of the blown air blown into the room from the blowout port 1b by changing the operating angle. The vertical wind direction plate 5 can be freely rotated in the vertical direction around a rotation shaft (not shown) extending in the horizontal direction of the indoor unit. Specifically, drive motors (not shown) attached to the left and right in the indoor unit main body 1 are connected to the rotating shaft of the vertical wind direction plate 5, and the vertical motor direction plate is operated by operating the drive motor. 5 is freely rotated in the vertical direction. Thereby, the conditioned air generated inside the indoor unit can be freely blown up and down.
　以上の構成により、室内機内部で生成された空調空気を、吹出し口１ｂから室内機外部へ吹出し、室内機が据付けされた室内の自在な空調を実現している。 With the above configuration, conditioned air generated inside the indoor unit is blown out from the outlet 1b to the outside of the indoor unit, thereby realizing free air conditioning in the room where the indoor unit is installed.
　図３は、図１において点線Ａで囲った部分の拡大図である。
　室内機の内部右側には、電装部品を収容する電装品箱（図示せず）が配置されている。電装品箱の一部は、吹出し口１ｂの右側端部の奥側に臨んでおり、吹出し口１ｂを塞いでいる。このため、吹出し口１ｂの外観は左右非対称となっており、吹出し口１ｂの右側端部は、言い換えれば上下風向板５の右側端部の上方領域は、吹出しが行われないかまたは吹出しが行われても少しである非吹出し領域６となっている。よって、図３に示すように非吹出し領域６に室内空気７が逆流する。したがって、何ら対策を施さないと、冷房運転時において、吹出し口１ｂからの冷風で冷えた上下風向板５に、湿気を含んだ温度の高い室内空気７が触れることで、室内空気７が露点温度以下に冷やされ、上下風向板５の上面である案内面５ａに結露が発生する。 FIG. 3 is an enlarged view of a portion surrounded by a dotted line A in FIG.
An electrical component box (not shown) that houses electrical components is disposed on the right side inside the indoor unit. A part of the electrical component box faces the back side of the right end of the outlet 1b, and closes the outlet 1b. Therefore, the appearance of the outlet 1b is asymmetrical, and the right end of the outlet 1b, in other words, the upper region of the right end of the up-and-down wind direction plate 5 is not blown out or blown out. Even if it is broken, it becomes the non-blowing area 6 which is a little. Therefore, the indoor air 7 flows backward into the non-blowing area 6 as shown in FIG. Therefore, if no countermeasures are taken, during the cooling operation, the indoor air 7 having a high temperature including moisture is in contact with the up-and-down air direction plate 5 cooled by the cold air from the outlet 1b, so that the indoor air 7 is dew point temperature. It cools below and dew condensation occurs on the guide surface 5a which is the upper surface of the vertical wind direction plate 5.
　そこで、本実施の形態１では、このような結露を未然に回避するため、上下風向板５の案内面５ａに風向ガイド８を設けている。以下、風向ガイド８について説明する。 Therefore, in the first embodiment, the wind direction guide 8 is provided on the guide surface 5a of the vertical wind direction plate 5 in order to avoid such condensation in advance. Hereinafter, the wind direction guide 8 will be described.
　図４は、図３において点線Ｂで囲った部分の拡大図である。図５は、図３において点線Ｂで囲った部分を説明する図２に対応する図である。図６は、図５において点線Ｃで囲った部分の拡大図である。
　風向ガイド８は、案内面５ａの上方を通過する吹出し空気９を、下向きの流れにして案内面５ａに沿って流れさせるものであり、非吹出し領域６に隣接して上下風向板５の案内面５ａ上に一体に形成されている。風向ガイド８は、案内面５ａから立設した左右一対のリブ８ａと、各リブ８ａの上面同士を繋ぐ受風板８ｂとを備えており、案内面５ａとの間に独立した風路８ｃを形成している。この風路８ｃは、流路断面が下流に向かうに連れて小さくなっている。 FIG. 4 is an enlarged view of a portion surrounded by a dotted line B in FIG. FIG. 5 is a diagram corresponding to FIG. 2 for explaining a portion surrounded by a dotted line B in FIG. FIG. 6 is an enlarged view of a portion surrounded by a dotted line C in FIG.
The wind direction guide 8 causes the blown air 9 passing above the guide surface 5 a to flow downward along the guide surface 5 a, and is adjacent to the non-blow area 6 to guide the upper and lower wind direction plates 5. It is integrally formed on 5a. The wind direction guide 8 includes a pair of left and right ribs 8a erected from the guide surface 5a, and a wind receiving plate 8b that connects the upper surfaces of the ribs 8a. Forming. The air passage 8c becomes smaller as the cross section of the flow passage goes downstream.
　受風板８ｂは、図５および図６に示すように、案内面５ａから離間した位置で、案内面５ａに対向しており、受風板８ｂの上流側端部８ｂａが上下風向板５の上流側端部５ａａより上流側へ突出している。また、受風板８ｂの下流側端部は上下風向板５と対向している。そして、受風板８ｂは、受風板８ｂを下流側に延長した仮想延長面１０が上下風向板５に交差する角度で配置されている。具体的には、受風板８ｂは、仮想延長面１０が上下風向板５の上下端部を結ぶ仮想線１１に角度αで交差するようにしてリブ８ａ上に配置されている。 5 and 6, the wind receiving plate 8b is opposed to the guide surface 5a at a position separated from the guide surface 5a, and the upstream end 8ba of the wind receiving plate 8b is It protrudes upstream from the upstream end 5aa. Further, the downstream end of the wind receiving plate 8 b faces the up and down wind direction plate 5. And the wind receiving plate 8b is arrange | positioned at the angle which the virtual extension surface 10 which extended the wind receiving plate 8b to the downstream cross | intersects the up-and-down wind direction board 5. FIG. Specifically, the wind receiving plate 8b is disposed on the rib 8a so that the virtual extension surface 10 intersects the virtual line 11 connecting the upper and lower ends of the vertical wind direction plate 5 at an angle α.
　ここで、受風板８ｂの寸法の一例について説明する。上下風向板５の上部を流れる吹出し空気９を、効率的かつ十分に上下風向板５へ流すことを考慮して、図６に示した距離Ｌ１、Ｌ２およびＬ３を設定している。ここで、距離Ｌ１は、上流側端部５ａａにおける案内面５ａの接線２０に対して垂直な法線２１の方向の距離であって、上下風向板５の上流側端部５ａａと風向ガイド８との間の距離である。距離Ｌ２は、接線２０方向の距離であって、上下風向板５と風向ガイド８とがラップしている距離である。距離Ｌ３は接線２０方向の距離であって、風向ガイド８が上下風向板５の上流側端部５ａａより上流側へ飛び出している距離である。これら距離Ｌ１およびＬ２はそれぞれ、５ｍｍ～１０ｍｍに設定している。 Here, an example of the dimensions of the wind receiving plate 8b will be described. The distances L1, L2, and L3 shown in FIG. 6 are set in consideration of efficiently and sufficiently flowing the blown air 9 flowing through the upper part of the vertical wind direction plate 5 to the vertical wind direction plate 5. Here, the distance L1 is a distance in the direction of the normal line 21 perpendicular to the tangent 20 of the guide surface 5a at the upstream end 5aa, and the upstream end 5aa of the vertical wind direction plate 5 and the wind direction guide 8 Is the distance between. The distance L2 is a distance in the direction of the tangent line 20 and is a distance at which the vertical wind direction plate 5 and the wind direction guide 8 are wrapped. The distance L3 is a distance in the tangential 20 direction, and is a distance by which the wind direction guide 8 protrudes from the upstream end 5aa of the vertical wind direction plate 5 to the upstream side. These distances L1 and L2 are set to 5 mm to 10 mm, respectively.
　以下、風向ガイド８を設けた場合と設けなかった場合のそれぞれの空気の流れを説明し、風向ガイド８を設けたことによる結露回避効果について説明する。 Hereinafter, the flow of air when the wind direction guide 8 is provided and when the wind direction guide 8 is not provided will be described, and the dew condensation avoidance effect due to the provision of the wind direction guide 8 will be described.
　図７は、本発明の実施の形態１に係る室内機の風向ガイドの作用説明図で、室内空気が非吹出し領域に逆流する状態を示す図である。図８は、本発明の実施の形態１に係る空気調和機の室内機の風向ガイドの作用説明図で、逆流した室内空気が風向ガイドからの吹出し空気によって風向ガイドの下流領域から押し出された状態を示す図である。 FIG. 7 is an operation explanatory diagram of the wind direction guide for the indoor unit according to Embodiment 1 of the present invention, and shows a state in which room air flows backward to the non-blowing area. FIG. 8 is an operation explanatory view of the airflow direction guide of the indoor unit of the air conditioner according to Embodiment 1 of the present invention, and the backflowed indoor air is pushed out from the downstream area of the airflow direction guide by the air blown from the airflow direction guide. FIG.
　風向ガイド８を設けなかった場合、非吹出し領域６に室内空気７が逆流する。ここで、上下風向板５の動作角度を下吹き角度とした場合、吹出し空気９は上下風向板５の案内面５ａに沿って流れず、案内面５ａから剥離する。つまり、吹出し空気９は上下風向板５の案内面５ａから離れた上方を流れる。このように、吹出し空気９が案内面５ａから離れた上方を流れると、湿気を含んだ温度の高い室内空気７が吹出し空気９の下流の案内面５ａに触れつつ逆流する。案内面５ａのうち、吹出し空気９の下流の領域、言い換えれば非吹出し領域６付近は吹出し空気９によって冷却されている。このため、その冷やされた領域に室内空気７が触れることで結露が生じる。 When the wind direction guide 8 is not provided, the indoor air 7 flows backward into the non-blowing area 6. Here, when the operating angle of the up-and-down wind direction plate 5 is a lower blowing angle, the blown air 9 does not flow along the guide surface 5 a of the up-and-down wind direction plate 5 but is separated from the guide surface 5 a. That is, the blown air 9 flows upward away from the guide surface 5 a of the up-and-down wind direction plate 5. As described above, when the blown air 9 flows upward away from the guide surface 5 a, the indoor air 7 having a high temperature including moisture flows backward while touching the guide surface 5 a downstream of the blown air 9. Of the guide surface 5 a, the area downstream of the blown air 9, in other words, the vicinity of the non-blow area 6 is cooled by the blown air 9. For this reason, dew condensation occurs when the indoor air 7 touches the cooled area.
　一方、風向ガイド８を設けた場合、図５に示すように、風向ガイド８内の風路８ｃに流入した吹出し空気９が受風板８ｂの裏面に衝突し、案内面５ａに向かう方向の進路に変更される。これにより、吹出し空気９が案内面５ａに向かい、案内面５ａに沿う流れとなる。ここで、受風板８ｂは、上流側端部８ｂａが上下風向板５の上流側端部５ａａより上流側へ突出するように配置されている。このため、上下風向板５よりも上流の吹出し空気９が風向ガイド８内の風路８ｃ内に導かれ、より多くの吹出し空気９が案内面５ａ上に沿って流れるようになっている。 On the other hand, when the wind direction guide 8 is provided, as shown in FIG. 5, the blown air 9 that has flowed into the wind path 8c in the wind direction guide 8 collides with the back surface of the wind receiving plate 8b and travels in the direction toward the guide surface 5a. Changed to Thereby, the blowing air 9 goes to the guide surface 5a, and becomes a flow along the guide surface 5a. Here, the wind receiving plate 8b is disposed such that the upstream end portion 8ba protrudes upstream from the upstream end portion 5aa of the vertical wind direction plate 5. For this reason, the blowing air 9 upstream from the up-and-down wind direction plate 5 is guided into the air passage 8c in the wind direction guide 8, and more blowing air 9 flows along the guide surface 5a.
　非吹出し領域６では、図７に示すように湿気を含んだ温度の高い室内空気７が吹出し口１ｂに逆流してくる。しかし、案内面５ａ上に沿って流れる吹出し空気９が、図８に示すように室内空気７を押し出す。ここで、風路８ｃは、流路断面が下流に向かうに連れて小さくなっているため、風速の上昇した吹出し空気９が案内面５ａ上に沿って流れる。これにより、室内空気７を吹出し空気９の下流の領域に流入させず、非吹出し領域６に押し出すことができる。したがって、従来発生していたような非吹出し領域６付近の案内面５ａにおける結露の発生を防止することができる。 In the non-blowing area 6, as shown in FIG. 7, the indoor air 7 having a high temperature including moisture flows backward to the blowing port 1 b. However, the blown air 9 flowing along the guide surface 5a pushes out the indoor air 7 as shown in FIG. Here, since the air flow path 8c becomes smaller as the cross section of the flow path goes downstream, the blown air 9 whose wind speed has increased flows along the guide surface 5a. Thereby, the indoor air 7 can be pushed out to the non-blowing area 6 without flowing into the area downstream of the blowing air 9. Therefore, it is possible to prevent the occurrence of condensation on the guide surface 5a in the vicinity of the non-blowing area 6 as has conventionally occurred.
　以上の受風板８ｂの作用は、上下風向板５の動作角度が動作範囲内のどのような角度であっても発揮される作用である。このため、上下風向板５の動作角度が下向きで、吹出し空気９が上下風向板５の案内面５ａから剥離しやすい状況であっても、受風板８ｂにより、吹出し空気９を上下風向板５の案内面５ａ上に沿って流すことができる。したがって、上下風向板５の案内面５ａにおける結露の発生を防止することができる。つまり、上下風向板５がいかなる下吹き角度にて冷房運転していても、上下風向板５の案内面５ａにおける結露の発生を防止することができる。 The above-described action of the wind receiving plate 8b is an action that is exerted regardless of the operating angle of the vertical wind direction plate 5 within the operating range. For this reason, even if the operating angle of the up-and-down wind direction plate 5 is downward and the blown air 9 is easily peeled off from the guide surface 5a of the up-and-down wind direction plate 5, the blown air 9 is moved by the wind receiving plate 8b. Can flow along the guide surface 5a. Therefore, it is possible to prevent the occurrence of condensation on the guide surface 5a of the up-and-down wind direction plate 5. That is, it is possible to prevent condensation on the guide surface 5a of the vertical wind direction plate 5 even if the vertical wind direction plate 5 is performing the cooling operation at any lower blowing angle.
　以上の説明のように、本実施の形態１の室内機では、吹出し空気を下向きの流れにして上下風向板５の案内面５ａに沿って流れさせる風向ガイド８を、非吹出し領域６に隣接して配置した。これにより、上下風向板５の上流側端部５ａａの上部を流れる吹出し空気９を、案内面５ａに沿った連続的な流れとすることができ、非吹出し領域６に向けて逆流してきた、湿気を含んだ温度の高い室内空気７を押し出すことができる。これにより、従来発生していたような非吹き出し領域付近での空気の逆流および結露を防止できる。よって、上下風向板５がいかなる下吹き角度にて冷房運転していても、非吹き出し領域付近での空気の逆流および結露を防止できる。このように、上下風向板５の動作角度が制限されないため、上下風向板５の動作角度を任意の動作角度にすることができる。 As described above, in the indoor unit of the first embodiment, the wind direction guide 8 that causes the blown air to flow downward along the guide surface 5a of the vertical wind direction plate 5 is adjacent to the non-blowing region 6. Arranged. Thereby, the blown air 9 flowing in the upper part of the upstream end portion 5aa of the up-and-down wind direction plate 5 can be a continuous flow along the guide surface 5a, and the moisture that has flowed back toward the non-blowing region 6 The indoor air 7 with a high temperature containing can be pushed out. As a result, it is possible to prevent the backflow of air and condensation in the vicinity of the non-blowing area as has conventionally occurred. Therefore, even if the up-and-down wind direction plate 5 is performing the cooling operation at any lower blowing angle, it is possible to prevent the backflow of air and condensation in the vicinity of the non-outflow region. Thus, since the operating angle of the up-and-down wind direction plate 5 is not limited, the operating angle of the up-and-down wind direction plate 5 can be set to an arbitrary operating angle.
　また、風向ガイド８の受風板８ｂを、受風板８ｂの仮想延長面１０が上下風向板５に交差する角度で配置したので、吹出し空気を下向きの流れにして上下風向板５の案内面５ａに沿って流れさせることができる。 Further, since the wind receiving plate 8b of the wind direction guide 8 is disposed at an angle at which the virtual extension surface 10 of the wind receiving plate 8b intersects the upper and lower wind direction plate 5, the blowing air is made to flow downward and the guide surface of the upper and lower wind direction plate 5 It can be made to flow along 5a.
　また、風向ガイド８の上流側端部８ｂａを、上下風向板５の上流側端部５ａａより上流側へ突出するように配置したので、上下風向板５の上流側端部５ａａの上部を流れる吹出し空気９をより多く上下風向板５の案内面５ａ上に沿って流すことができる。このため、より効果的に結露の発生を防止することができる。 Further, since the upstream end portion 8ba of the wind direction guide 8 is arranged so as to protrude upstream from the upstream end portion 5aa of the upper and lower wind direction plate 5, the blowout flowing over the upper end portion 5aa of the upper and lower wind direction plate 5 More air 9 can flow along the guide surface 5 a of the up-and-down wind direction plate 5. For this reason, generation | occurrence | production of dew condensation can be prevented more effectively.
　また、風向ガイド８を、風路８ｃの流路断面が下流に向かうに連れて小さくなる構成としたので、下流に向けて風速を上げることができ、室内空気７の押し出し効果を高めることができる。 In addition, since the wind direction guide 8 is configured to become smaller as the cross section of the air passage 8c becomes downstream, the wind speed can be increased toward the downstream, and the push-out effect of the indoor air 7 can be enhanced. .
　なお、室内空気７の逆流を抑制して結露を防止する方法として、吹出し口１ｂを狭めて吹出し空気９の風速を上げる方法も考えられる。しかし吹出し口１ｂを狭めることは、静圧回復に悪影響を与えることになり、送風機性能が悪化する。一方、本実施の形態１では吹出し口１ｂを狭めることなく、室内空気７の逆流を押し出すことができる。よって、本実施の形態１では、吹出し口１ｂを狭めて吹出し空気９の風速を上げる方法に比べて吹出し口１ｂを拡大することができ、静圧回復に割り当てることで送風機性能の改善を図ることができる。 In addition, as a method of suppressing the backflow of the indoor air 7 and preventing condensation, a method of increasing the wind speed of the blown air 9 by narrowing the blowout port 1b can be considered. However, narrowing the outlet 1b adversely affects the recovery of static pressure, and the blower performance deteriorates. On the other hand, in this Embodiment 1, the backflow of the indoor air 7 can be pushed out, without narrowing the blower outlet 1b. Therefore, in this Embodiment 1, compared with the method of narrowing the blower outlet 1b and raising the wind speed of the blown air 9, the blower outlet 1b can be expanded, and the improvement of the blower performance is achieved by assigning it to static pressure recovery. Can do.
　また、本実施の形態１によれば、結露が生じないため、上下風向板５を任意の角度に保ったまま連続運転でき、下吹き性能の改善および快適性の改善を図ることができる。 Further, according to the first embodiment, since no condensation occurs, it is possible to continuously operate while keeping the up-and-down wind direction plate 5 at an arbitrary angle, and it is possible to improve the lower blowing performance and the comfort.
　なお、本実施の形態１では、非吹出し領域６を右側端部としたが左側端部としてもよい。また、本実施の形態１では、風路８ｃの流路断面が上流から下流に向かうに連れて小さくなる構成としたが、上流から下流に至るまで同じ流路断面としてもよい。この場合も、風向ガイド８からの吹出し空気９によって室内空気７の十分な押し出しを行うことができる。 In the first embodiment, the non-blowing area 6 is the right end, but it may be the left end. In the first embodiment, the flow path cross section of the air passage 8c is configured to become smaller from upstream to downstream. However, the same flow path cross section may be used from upstream to downstream. Also in this case, the indoor air 7 can be sufficiently pushed out by the blown air 9 from the wind direction guide 8.
　本発明の室内機は、図１に示した構造に限定されるものではなく、本発明の要旨を逸脱しない範囲で例えば以下のように種々の変形例の実施が可能である。 The indoor unit of the present invention is not limited to the structure shown in FIG. 1, and various modifications can be implemented as follows, for example, without departing from the gist of the present invention.
　図９は、本発明の実施の形態１に係る室内機の風向ガイドの変形例を示す図である。図１０は、図９の風向ガイドの作用説明図で、風向ガイドからの吹出し空気によって室内空気が押し返された状態を示す図である。
　上記の風向ガイド８は、リブ８ａを左右に一対、備えていたが、リブ８ａは受風板８ｂを支持できればよく、この変形例では、リブ８ｄを１本としている。そして、リブ８ｄが中央部に位置するように、リブ８ｄの上面に受風板８ｂが設けられている。風向ガイド８をこのような構成としても、上記と同様の効果が得られる。 FIG. 9 is a diagram showing a modification of the wind direction guide for the indoor unit according to Embodiment 1 of the present invention. FIG. 10 is an explanatory diagram of the action of the wind direction guide of FIG. 9 and shows a state in which room air is pushed back by the air blown from the wind direction guide.
The wind direction guide 8 includes a pair of ribs 8a on the left and right, but the ribs 8a only need to support the wind receiving plate 8b. In this modification, the rib 8d is one. And the wind receiving plate 8b is provided in the upper surface of the rib 8d so that the rib 8d may be located in the center part. Even if the wind direction guide 8 has such a configuration, the same effect as described above can be obtained.
　１　室内機本体、１ａ　吸込み口、１ｂ　吹出し口、１ｃ　前側吹出風路面、１ｄ　後側吹出風路面、２　正面パネル、３　熱交換器、４　ファン、５　上下風向板、５ａ　案内面、５ａａ　上流側端部、６　非吹出し領域、７　室内空気、８　風向ガイド、８ａ　リブ、８ｂ　受風板、８ｂａ　上流側端部、８ｃ　風路、８ｄ　リブ、９　吹出し空気、１０　仮想延長面、１１　仮想線、２０　接線、２１　法線。 1 indoor unit main body, 1a inlet, 1b outlet, 1c front outlet passage surface, 1d rear outlet passage surface, 2 front panel, 3 heat exchanger, 4 fan, 5 up / down wind direction plate, 5a guide surface, 5aa upstream side End, 6 non-blowing area, 7 indoor air, 8 wind direction guide, 8a rib, 8b wind receiving plate, 8ba upstream end, 8c airway, 8d rib, 9 blowing air, 10 virtual extension surface, 11 virtual line, 20 tangents, 21 normals.

Claims (4)

  1. 　吸込み口から室内空気を吸込み、熱交換器で冷媒と熱交換した後、吹出し口から室内へ吹出す空気調和機の室内機において、
    　前記吹出し口から吹出される吹出し空気の風向きを上下方向に調整する上下風向板と、
    　前記上下風向板に設けられ、前記上下風向板の案内面の上方を通過する前記吹出し空気を、下向きの流れにして前記案内面に沿って流れさせる風向ガイドとを備え、
    　前記風向ガイドは、前記上下風向板の右側端部または左側端部の上方領域であって、前記吹出し口から前記吹出し空気が吹出されない非吹出し領域に隣接して配置されている空気調和機の室内機。     In an indoor unit of an air conditioner that sucks indoor air from the suction port, exchanges heat with the refrigerant in the heat exchanger, and then blows out the air from the outlet to the room.
    An up-and-down air direction plate that adjusts the air direction of the blown-out air blown out from the blow-out port in the up and down direction;
    A wind direction guide provided on the upper and lower wind direction plate, and allowing the blown air passing above the guide surface of the upper and lower wind direction plate to flow downward along the guide surface;
    The air direction guide is an area above the right end or left end of the upper and lower wind direction plates, and is located adjacent to a non-blow area where the blown air is not blown from the blowout opening. Machine.
  2. 　前記風向ガイドは、前記上下風向板の前記案内面から離間して配置される受風板を備え、前記受風板は、前記受風板の仮想延長面が前記上下風向板に交差する角度で配置されている請求項１記載の空気調和機の室内機。 The wind direction guide includes a wind receiving plate disposed apart from the guide surface of the upper and lower wind direction plates, and the wind receiving plate has an angle at which a virtual extension surface of the wind receiving plate intersects the upper and lower wind direction plates. The indoor unit of the air conditioner according to claim 1, which is arranged.
  3. 　前記風向ガイドの前記受風板は、前記受風板の上流側端部が前記上下風向板の上流側端部よりも上流側に位置し、前記受風板の下流側端部が前記上下風向板と対向するように配置されている請求項２記載の空気調和機の室内機。 The wind receiving plate of the wind direction guide has an upstream end of the wind receiving plate positioned upstream of an upstream end of the vertical wind direction plate, and a downstream end of the wind receiving plate is the vertical wind direction. The indoor unit of the air conditioner according to claim 2, wherein the indoor unit is disposed so as to face the plate.
  4. 　前記風向ガイドは、前記受風板とともに前記上下風向板との間に独立した風路を形成しており、前記風路の流路断面が上流から下流に向かうに連れて小さくなっている請求項２または請求項３記載の空気調和機の室内機。 The wind direction guide forms an independent air path between the wind receiving plate and the upper and lower air direction plates, and a cross section of the flow path of the air path becomes smaller from upstream to downstream. The indoor unit of the air conditioner of Claim 2 or Claim 3.
PCT/JP2018/020766 2018-05-30 2018-05-30 Indoor unit of air conditioner WO2019229879A1 (en)

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JP2021055945A (en) * 2019-09-30 2021-04-08 ダイキン工業株式会社 Indoor unit of air conditioning device, and air conditioning device
JP2021055944A (en) * 2019-09-30 2021-04-08 ダイキン工業株式会社 Indoor unit of air conditioning device, and air conditioning device
JPWO2021192092A1 (en) * 2020-03-25 2021-09-30

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JP2021055945A (en) * 2019-09-30 2021-04-08 ダイキン工業株式会社 Indoor unit of air conditioning device, and air conditioning device
JP2021055944A (en) * 2019-09-30 2021-04-08 ダイキン工業株式会社 Indoor unit of air conditioning device, and air conditioning device
JPWO2021192092A1 (en) * 2020-03-25 2021-09-30
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