WO2015104791A1 - Air-conditioning device - Google Patents

Air-conditioning device Download PDF

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Publication number
WO2015104791A1
WO2015104791A1 PCT/JP2014/050068 JP2014050068W WO2015104791A1 WO 2015104791 A1 WO2015104791 A1 WO 2015104791A1 JP 2014050068 W JP2014050068 W JP 2014050068W WO 2015104791 A1 WO2015104791 A1 WO 2015104791A1
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WO
WIPO (PCT)
Prior art keywords
air
case
suction port
outlet
air conditioner
Prior art date
Application number
PCT/JP2014/050068
Other languages
French (fr)
Japanese (ja)
Inventor
池田　尚史
惇司 河野
昌彦 高木
栗原　誠
潔 吉村
健裕 田中
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/JP2014/050068 priority Critical patent/WO2015104791A1/en
Priority to JP2015556652A priority patent/JPWO2015104791A1/en
Priority to EP14877785.7A priority patent/EP3096092A4/en
Publication of WO2015104791A1 publication Critical patent/WO2015104791A1/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
    • 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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • 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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • 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
    • F24F2013/0616—Outlets that have intake openings

Definitions

  • the present invention relates to an air conditioner.
  • a suction port and an air outlet are formed on the lower surface of the device facing the air-conditioned room. And after adjusting the temperature of the air suck
  • a short cycle may occur in which a part of the flow blown downward from the air outlet is attracted to the air inlet and sucked into the case.
  • the air conditioner disclosed in Patent Document 2 and Patent Document 3 when the auxiliary air outlet is also provided at the corner portion of the decorative panel constituting the lower surface of the case, the suction flow and the auxiliary air outlet are used. This causes a problem that a short cycle is more likely to occur because the blown flow tends to flow into the suction port.
  • the present invention has been made in view of the above, and an object of the present invention is to provide an air conditioner that can reduce the flow of air blown from the air outlet into the air inlet.
  • the present invention for achieving the above-described object includes a case provided on the ceiling of a space to be air-conditioned, and a blower unit and a heat exchanger disposed in the case, and at least a lower part of the case, An air conditioner having one air outlet and at least one air inlet, wherein a stepped portion protruding toward the space to be air-conditioned is provided between the air outlet and the air inlet. ing.
  • the suction port and the protruding end of the stepped portion may be located on the same surface, and the suction port is located on the inner side of the case than the protruding end of the stepped portion. You may be made to be located in.
  • the step portion has a rising side surface, a reference line that is a line extending in a direction orthogonal to the formation surface of the suction port and passes through the base portion of the rising side surface, and an angle between the rising side surface is , And may be configured to be between ⁇ 45 degrees and +45 degrees.
  • the step portion may have a rising side surface, and the rising side surface may include an inclined portion that is inclined toward the air outlet side in a direction that protrudes toward a space to be air-conditioned. .
  • the step portion may be provided so as to surround the suction port.
  • the lower part of the case is constituted by a decorative panel, and the decorative panel has a rectangular outer edge in plan view, and the four outlets serve as main outlets along the four sides of the decorative panel.
  • the four sub outlets are provided along the four corners of the decorative panel, and the sub outlet has a smaller opening area than the main outlet, and the main outlet
  • the step portion is provided between each of the air outlet and the suction port and between the sub air outlet and the suction port, and the rising side surface of the step portion has a loop shape. You may comprise so that it may extend.
  • the air conditioner of the present invention it is possible to reduce the flow blown from the blowout port from flowing into the suction port.
  • FIG. 1 shows the internal structure of the air conditioning apparatus which concerns on Embodiment 1 of this invention from the side. It is a figure which shows the internal structure of the air conditioning apparatus of this Embodiment 1 from the side. It is a figure which shows the internal structure of the air conditioning apparatus of this Embodiment 1 planarly. It is a figure which expands and shows the blower outlet periphery in FIG. It is a figure of the same aspect as FIG. 1 regarding Embodiment 2 of this invention. It is a figure of the same aspect regarding FIG. It is a figure of the same aspect as FIG. 1 regarding Embodiment 3 of this invention. It is a figure of the same aspect as FIG. 2 regarding this Embodiment 3. FIG. It is a figure of the same aspect as FIG. 2 regarding Embodiment 4 of this invention. It is a figure of the same aspect as FIG. 1 regarding Embodiment 5 of this invention.
  • FIG. 1 is a side view showing the internal structure of the air-conditioning apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a diagram illustrating the internal configuration of the air-conditioning apparatus according to Embodiment 1 from the side
  • FIG. 3 is a diagram illustrating the internal configuration of the air-conditioning apparatus in a plan view.
  • FIG. 4 is an enlarged view showing the vicinity of the outlet in FIG.
  • the air conditioner 100 is a so-called indoor unit of a packaged air conditioner
  • FIG. 1 illustrates a state in which most of the air conditioner is embedded in the back of the ceiling of the room and the lower part of the case is looked up from the room.
  • the air conditioner 100 includes a case 1 embedded in a ceiling 15a of a space to be air-conditioned (in the room 15).
  • the case 1 is an example, but is generally formed in a rectangular parallelepiped shape.
  • the case 1 includes an upper surface portion 1a, a side surface portion 1b, and a decorative panel 2 that is a lower surface portion.
  • the side surface portion 1 b has four main surfaces 21 oriented in two orthogonal axes, and further has a corner portion 22 between the two corresponding main surfaces 21.
  • the side surface portion 1b is formed in a cylindrical shape extending vertically, and the upper portion of the side surface portion 1b is closed by the upper surface portion 1a, and the decorative panel 2 is provided below the side surface portion 1b.
  • the case 1 is generally formed in a box shape by the upper surface portion 1a, the side surface portion 1b, and the decorative panel 2.
  • the decorative panel 2 is provided with at least one inlet 2a and at least one outlet 2b.
  • one suction port 2a and four air outlets 2b are provided as will be described later.
  • centrifugal fan (turbo fan) 3, a fan motor 4, a bell mouth 5, and a heat exchanger 6 serving as a blower are housed.
  • the centrifugal fan 3 creates a flow of air that is sucked into the case 1 from the suction port 2a and blown out from the blowout port 2b to the target space.
  • the heat exchanger 6 is disposed in such an air flow path and adjusts the temperature of the air.
  • the suction port 2 a is provided at the center of the decorative panel 2 and extends over a wide area of the decorative panel 2. Moreover, although the suction inlet 2a of this Embodiment 1 is provided as a grille (grille) type, this invention is not limited to this.
  • a filter 14 is provided on the upstream side of the suction port 2a (inside the case 1) to remove air after passing through the suction port 2a.
  • the decorative panel 2 and the suction port 2a each have a rectangular outer edge in plan view.
  • a plurality of air outlets 2b are provided in a region between the outer edge of the decorative panel 2 and the outer edge of the suction port 2a.
  • each of the decorative panel 2 and the inlet 2a has four edges, and there are four outlets 2b, each of which is described later. It arrange
  • the four blower outlets 2b are located so that the suction inlet 2a may be surrounded.
  • Each air outlet 2b is provided with a wind direction plate 2c for adjusting the direction of air to be blown out.
  • a fan motor 4 is disposed in the center of the case 1.
  • the fan motor 4 is supported on the lower surface (the inner space side of the case) of the upper surface portion 1 a of the case 1.
  • a centrifugal fan 3 is attached to a rotating shaft extending downward in the fan motor 4. Further, a bell mouth 5 is provided between the centrifugal fan 3 and the suction port 2 a to form a suction air path from the suction port 2 a toward the centrifugal fan 3.
  • the centrifugal fan 3 sucks air into the case 1 from the suction port 2a, and causes the air to flow out from the blowout port 2b to a room (indoor) 15 that is a target space.
  • a heat exchanger 6 is disposed on the radially outer side of the centrifugal fan 3.
  • the heat exchanger 6 is arranged in a flow path of air generated in the case by the centrifugal fan 3 and performs heat exchange between the air and the refrigerant.
  • the heat exchanger 6 has a plurality of fins arranged at predetermined intervals and a heat transfer pipe that penetrates the fins, and the heat transfer pipe is connected to a well-known outdoor unit (not shown) by a connection pipe. Thereby, the cooled or heated refrigerant is supplied to the heat exchanger 6.
  • a drain pan 12 for temporarily storing condensed water is provided below the heat exchanger 6. Further, on the back side of the drain pan 12, an electrical component box 13 for storing the electronic substrate is provided.
  • the structure and aspect of the centrifugal fan 3, the bellmouth 5, and the heat exchanger 6 are not specifically limited, In this Embodiment 1, a well-known thing is used.
  • a stepped portion that protrudes toward the air-conditioning space (that is, downward in the illustrated example).
  • a stepped portion 10 that protrudes toward the space to be air-conditioned is provided between one inlet 2a and four outlets 2b.
  • the step portion 10 has a rising side surface 10a extending from the surface on which the air outlet 2b is formed to the space to be air-conditioned and a protruding end portion 10b.
  • the suction port 2a and the protruding end portion 10b of the step portion 10 are located on the same surface.
  • the suction port 2a is provided at the same height as the protruding end portion 10b of the stepped portion 10 as viewed in the height dimension direction of the case 1 (the vertical direction in FIG. 2).
  • a reference line Y that extends in a direction orthogonal to the formation surface X of the suction port 2a and passes through the base portion 10c of the rising side surface, and the rising side surface 10a
  • the angle is preferably between ⁇ 45 degrees and +45 degrees.
  • the step portion 10 is formed so as to surround the suction port 2a.
  • the rising side surface 10a of the stepped portion 10 is formed in a loop shape (closed around the circumference) so as to surround the suction port 2a.
  • a stepped portion exists between the suction port and the air outlet, and thus the creepage distance between the air inlet and the air outlet is increased.
  • this short circle suppression effect is effective when air is blown downward from the air outlet. For example, in a scene where air is blown to the floor during heating, the air is lowered downward. Comfortability is improved because it can be blown out.
  • FIGS. 5 and FIG. 6 are diagrams of the same mode as FIG. 1 and FIG.
  • the second embodiment is the same as the first embodiment except for the parts described below.
  • the suction port 202 a is located on the inner side of the case 1 than the protruding end portion 10 b of the stepped portion 10 (see FIG. In the example shown, it is located above.
  • the same advantages as those of the first embodiment are obtained.
  • the creepage distance between the suction port and the outlet can be further increased as compared with the first embodiment, and the short circle can be further suppressed. it can.
  • FIGS. 7 and 8 are diagrams related to the second embodiment in the same manner as FIGS. 1 and 2.
  • this Embodiment 3 shall be the same as that of the said Embodiment 1 except the part demonstrated below.
  • Embodiments 1 and 2 described above a so-called four-direction outlet cassette type indoor unit has been described as an example, but the present invention is not limited to this.
  • the third embodiment is an example in which the direction of the blowing direction is different from those of the first and second embodiments, and relates to a so-called two-way blowing cassette type indoor unit.
  • the decorative panel 302 in the air-conditioning apparatus 300 according to Embodiment 3 is formed in a rectangular shape when viewed from the front (looking straight up from the room).
  • the decorative panel 302 is provided with two suction ports 302a and two air outlets 302b. Both the suction port 302a and the blowout port 302b extend in the long side direction of the decorative panel 302.
  • the two suction ports 302a are disposed between the two air outlets 302b (in the short side direction of the decorative panel 302).
  • a step portion 310 is provided between the suction port 302a and the air outlet 302b.
  • the step portion 310 also has a rising side surface 310a and a protruding end portion 310b.
  • the suction port 302a and the protruding end portion 310b of the stepped portion 302 may be located on the same surface, or the suction port 302 is located closer to the inside of the case than the protruding end portion 310b of the stepped portion 302. May be located.
  • 7 and 8 illustrate an example in which the suction port 302 is located on the inner side of the case with respect to the protruding end portion 310b of the stepped portion 302.
  • FIG. 9 is a diagram of the same mode as FIG.
  • this Embodiment 4 shall be the same as that of the said Embodiment 1 or 2 except the part demonstrated below.
  • the rising side surface 410a of the stepped portion 410 includes an inclined portion that is inclined toward the air outlet 2b as it goes in the direction protruding toward the space to be air-conditioned. .
  • the entire rising side surface 410a is formed of such an inclined portion. Note that such an inclined portion fits the description of FIG. 2 of the first embodiment, and the angle between the reference line Y and the rising side surface 410a is in a range of ⁇ 45 degrees to less than 0 degrees.
  • the suction port is shown as an aspect of the first embodiment.
  • the fourth embodiment is not limited to this, and the suction port is similar to the aspect of the second embodiment. It can also be provided. 9 shows a case where the present invention is applied to a four-way outlet cassette type indoor unit, but the fourth embodiment is not limited to this and is applied to a two-way outlet cassette type indoor unit. You can also be provided.
  • the same advantages as those of the first or second embodiment are obtained.
  • the rising side surface of the step portion since the rising side surface of the step portion includes an inclined portion that is inclined toward the air outlet side, the air that has flowed out from the air outlet becomes extremely difficult to move toward the air inlet side. Thereby, there is an advantage that the effect of preventing a short circle becomes extremely high.
  • FIG. 10 is a diagram of the same mode as FIG.
  • the tenth embodiment is the same as the first, second, or fourth embodiment except for the parts described below.
  • the air conditioner 500 according to the fifth embodiment is a so-called all-round blow cassette type indoor unit, and the decorative panel 502 of the air conditioner 500 has a portion corresponding to the inside of each of the corner portions 22 in plan view (that is, the inside). At the corner portion of the decorative panel, there is a sub air outlet 502d having an opening area smaller than that of the air outlet (main air outlet) 2b. In other words, each of the four sub outlets 502d is provided between a pair of corresponding outlets (main outlets) 2b.
  • Step portions 10 are provided between each of the outlet 2b and the inlet 2a and between the sub outlet 502d and the inlet 2a.
  • the rising side surface of the stepped portion 10 extends in a loop shape.
  • the aspect of the inclination of the rising side surface of the stepped portion and the height relationship between the protruding end portion of the stepped portion and the suction port 2a may be any of the first, second, and fourth embodiments.
  • the same advantages as those of the first or second embodiment are obtained.
  • the fifth embodiment by having the sub air outlet, it is possible to blow out in all directions, but the short cycle suppressing effect is obtained in all directions.
  • the momentum at which the airflow blows out at the sub outlet is apt to be weaker than the momentum at which the airflow blows out at the outlet (main outlet), and the short cycle is more likely to occur. According to this, it is possible to obtain a short cycle suppressing effect even for the blowout of the sub-outlet where such a short cycle is likely to occur.

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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)
  • Air-Flow Control Members (AREA)

Abstract

An air-conditioning device (100) equipped with a case (1) provided in the ceiling (15a) of a room (15) which is a space to be air-conditioned, and also equipped with a centrifugal fan (3), which is a ventilating part, and a heat exchanger (6), which are positioned inside the case (1), wherein: the bottom section of the case (1) is provided with at least one air outlet (2b) and at least one intake port (2a); a stepped section (10) for projecting toward the space to be air-conditioned is provided between the intake port (2a) and the air outlet (2b); and, for example, the intake port (2a) and a projecting end section (10b) of the stepped section (10) may be positioned on the same surface as one another, and the intake port (2a) may be positioned toward the inside of the case (1) relative to the projecting end section (10b) of the stepped section (10).

Description

空気調和装置Air conditioner
　本発明は、空気調和装置に関するものである。 The present invention relates to an air conditioner.
　天井埋込形の空気調和装置においては、空調する部屋に面した装置下面に吸込口及び吹出口が形成されている。そして、吸込口からケース内に吸引した空気を、ケース内に設けられた熱交換器で温度調整した後、吹出口から部屋へと送り出している（特許文献１、特許文献２、特許文献３参照）。 In the ceiling-embedded air conditioner, a suction port and an air outlet are formed on the lower surface of the device facing the air-conditioned room. And after adjusting the temperature of the air suck | inhaled in the case from the suction inlet with the heat exchanger provided in the case, it sends out from a blower outlet to a room (refer patent document 1, patent document 2, patent document 3). ).
特許第４６８４０８５号明細書Japanese Patent No. 4684085 特許第４０５２２６４号明細書Japanese Patent No. 4052264 特許第３７００７１８号明細書Japanese Patent No. 3700718
　天井埋込形の空気調和装置においては、吹出口から下方へ吹き出された流れの一部が、吸込口に引き寄せられてケース内に吸引される、ショートサイクルが発生することがあり、部屋の温度ムラが発生し快適性が損なわれるおそれがあった。特に、特許文献２や特許文献３に開示されている空気調和装置のように、ケース下面を構成する化粧パネルの角部にも補助吹出口が設けられている場合、吸込流れと補助吹出口からの流れとが干渉し、吹き出した流れが吸込口へ流入しやすいため、ショートサイクルがさらに発生しやすい問題がある。 In a ceiling-embedded air conditioner, a short cycle may occur in which a part of the flow blown downward from the air outlet is attracted to the air inlet and sucked into the case. There was a risk of unevenness and loss of comfort. In particular, as in the air conditioner disclosed in Patent Document 2 and Patent Document 3, when the auxiliary air outlet is also provided at the corner portion of the decorative panel constituting the lower surface of the case, the suction flow and the auxiliary air outlet are used. This causes a problem that a short cycle is more likely to occur because the blown flow tends to flow into the suction port.
　本発明は、上記に鑑みてなされたものであり、吹出口から吹き出された流れが吸込口に流入することを低減することができる、空気調和装置を提供することを目的とする。 The present invention has been made in view of the above, and an object of the present invention is to provide an air conditioner that can reduce the flow of air blown from the air outlet into the air inlet.
　上述した目的を達成するための本発明は、空調対象の空間の天井に設けられたケースと、該ケース内に配置された、送風部及び熱交換器とを備え、前記ケースの下部に、少なくとも一つの吹出口と少なくとも一つの吸込口とが設けられている、空気調和装置であって、前記吹出口と前記吸込口との間には、空調対象の空間側に突出する段差部が設けられている。
　前記吸込口と、前記段差部の突出端部とは、同じ面上に位置しているようにしてもよいし、前記吸込口は、前記段差部の突出端部よりも、前記ケースの内部側に位置しているようにしてもよい。
　前記段差部は、立ち上がり側面を有しており、前記吸込口の形成面と直交する方向に延びる線であって前記立ち上がり側面の基部を通る線である基準線と、前記立ち上がり側面との角度は、－４５度～＋４５度の間であるように構成してもよい。
　前記段差部は、立ち上がり側面を有しており、前記立ち上がり側面は、空調対象の空間側に突出する方向に向かうにしたがい前記吹出口側に傾く傾斜部分を含んでいるように構成してもよい。
　前記段差部は、前記吸込口を囲むように設けられているようにしてもよい。
　前記ケースの下部は、化粧パネルで構成されており、前記化粧パネルは、平面視矩形の外縁を有しており、４つの前記吹出口が、メイン吹出口として、前記化粧パネルの４辺に沿うように設けられており、４つのサブ吹出口が、前記化粧パネルの４つのコーナー部に沿うように設けられており、前記サブ吹出口は、前記メイン吹出口よりも開口面積が小さく、前記メイン吹出口と前記吸込口との間のそれぞれ、及び、前記サブ吹出口と前記吸込口との間のそれぞれには、前記段差部が設けられており、前記段差部の立ち上がり側面は、ループ状に延びているように構成してもよい。 The present invention for achieving the above-described object includes a case provided on the ceiling of a space to be air-conditioned, and a blower unit and a heat exchanger disposed in the case, and at least a lower part of the case, An air conditioner having one air outlet and at least one air inlet, wherein a stepped portion protruding toward the space to be air-conditioned is provided between the air outlet and the air inlet. ing.
The suction port and the protruding end of the stepped portion may be located on the same surface, and the suction port is located on the inner side of the case than the protruding end of the stepped portion. You may be made to be located in.
The step portion has a rising side surface, a reference line that is a line extending in a direction orthogonal to the formation surface of the suction port and passes through the base portion of the rising side surface, and an angle between the rising side surface is , And may be configured to be between −45 degrees and +45 degrees.
The step portion may have a rising side surface, and the rising side surface may include an inclined portion that is inclined toward the air outlet side in a direction that protrudes toward a space to be air-conditioned. .
The step portion may be provided so as to surround the suction port.
The lower part of the case is constituted by a decorative panel, and the decorative panel has a rectangular outer edge in plan view, and the four outlets serve as main outlets along the four sides of the decorative panel. The four sub outlets are provided along the four corners of the decorative panel, and the sub outlet has a smaller opening area than the main outlet, and the main outlet The step portion is provided between each of the air outlet and the suction port and between the sub air outlet and the suction port, and the rising side surface of the step portion has a loop shape. You may comprise so that it may extend.
　本発明の空気調和装置によれば、吹出口から吹き出された流れが吸込口に流入することを低減することができる。 According to the air conditioner of the present invention, it is possible to reduce the flow blown from the blowout port from flowing into the suction port.
本発明の実施の形態１に係る空気調和装置の内部構造を側方から示した図である。It is the figure which showed the internal structure of the air conditioning apparatus which concerns on Embodiment 1 of this invention from the side. 本実施の形態１の空気調和装置の内部構成を側方から示す図である。It is a figure which shows the internal structure of the air conditioning apparatus of this Embodiment 1 from the side. 本実施の形態１の空気調和装置の内部構成を平面的に示す図である。It is a figure which shows the internal structure of the air conditioning apparatus of this Embodiment 1 planarly. 図２における吹出口周辺を拡大して示す図である。It is a figure which expands and shows the blower outlet periphery in FIG. 本発明の実施の形態２に関する、図１と同態様の図である。It is a figure of the same aspect as FIG. 1 regarding Embodiment 2 of this invention. 本実施の形態２に関する、図２と同態様の図である。It is a figure of the same aspect regarding FIG. 本発明の実施の形態３に関する、図１と同態様の図である。It is a figure of the same aspect as FIG. 1 regarding Embodiment 3 of this invention. 本実施の形態３に関する、図２と同態様の図である。It is a figure of the same aspect as FIG. 2 regarding this Embodiment 3. FIG. 本発明の実施の形態４に関する、図２と同態様の図である。It is a figure of the same aspect as FIG. 2 regarding Embodiment 4 of this invention. 本発明の実施の形態５に関する、図１と同態様の図である。It is a figure of the same aspect as FIG. 1 regarding Embodiment 5 of this invention.
　以下、本発明に係る空気調和装置の実施の形態について添付図面に基づいて説明する。なお、図中、同一符号は同一又は対応部分を示すものとする。 Hereinafter, embodiments of an air conditioner according to the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.
　実施の形態１．
　図１は、本発明の実施の形態１に係る空気調和装置の内部構造を側方から示した図である。図２は、本実施の形態１の空気調和装置の内部構成を側方から示す図、図３は、空気調和装置の内部構成を平面的に示す図である。図４は、図２における吹出口周辺を拡大して示す図である。空気調和装置１００は、いわゆるパッケージエアコンの室内機であり、図１は、空気調和装置の大部分が部屋の天井裏に埋設され、ケースの下部を室内から見上げた状態を図示している。 Embodiment 1 FIG.
FIG. 1 is a side view showing the internal structure of the air-conditioning apparatus according to Embodiment 1 of the present invention. FIG. 2 is a diagram illustrating the internal configuration of the air-conditioning apparatus according to Embodiment 1 from the side, and FIG. 3 is a diagram illustrating the internal configuration of the air-conditioning apparatus in a plan view. FIG. 4 is an enlarged view showing the vicinity of the outlet in FIG. The air conditioner 100 is a so-called indoor unit of a packaged air conditioner, and FIG. 1 illustrates a state in which most of the air conditioner is embedded in the back of the ceiling of the room and the lower part of the case is looked up from the room.
　空気調和装置１００は、空調対象の空間（部屋１５の）の天井１５ａに埋設されたケース１を備えている。ケース１は、一例であるが、概ね直方体状に形成されている。ケース１は、上面部１ａと、側面部１ｂと、下面部である化粧パネル２とを含んでいる。 The air conditioner 100 includes a case 1 embedded in a ceiling 15a of a space to be air-conditioned (in the room 15). The case 1 is an example, but is generally formed in a rectangular parallelepiped shape. The case 1 includes an upper surface portion 1a, a side surface portion 1b, and a decorative panel 2 that is a lower surface portion.
　側面部１ｂは、図３に現れているように、直交２軸を指向する４つの主要面２１を有し、さらに、対応する２つの主要面２１の間にコーナー部２２を有している。側面部１ｂは、上下に延びる筒状に形成されており、側面部１ｂの上部は、上面部１ａで閉塞されており、側面部１ｂの下部に化粧パネル２が設けられている。ケース１は、これら上面部１ａ、側面部１ｂ及び化粧パネル２によって概ね箱状に形成されている。 As shown in FIG. 3, the side surface portion 1 b has four main surfaces 21 oriented in two orthogonal axes, and further has a corner portion 22 between the two corresponding main surfaces 21. The side surface portion 1b is formed in a cylindrical shape extending vertically, and the upper portion of the side surface portion 1b is closed by the upper surface portion 1a, and the decorative panel 2 is provided below the side surface portion 1b. The case 1 is generally formed in a box shape by the upper surface portion 1a, the side surface portion 1b, and the decorative panel 2.
　ケース１の下部には、すなわち本実施の形態１では化粧パネル２には、少なくとも一つの吸込口２ａ及び少なくとも一つの吹出口２ｂが設けられている。本実施の形態１の空気調和装置１００では、一例であるが、後述するように１つの吸込口２ａと４つの吹出口２ｂとが設けられている。 At the bottom of the case 1, that is, in the first embodiment, the decorative panel 2 is provided with at least one inlet 2a and at least one outlet 2b. In the air conditioning apparatus 100 according to the first embodiment, as an example, one suction port 2a and four air outlets 2b are provided as will be described later.
　ケース１内には、送風部としての遠心ファン（ターボファン）３と、ファンモータ４と、ベルマウス５と、熱交換器６とが収容されている。遠心ファン３は、吸込口２ａからケース１内に吸込まれ吹出口２ｂから対象空間へと吹出される空気の流れを作る。熱交換器６は、そのような空気の流動路中に配置され、空気の温度を調整する。 In the case 1, a centrifugal fan (turbo fan) 3, a fan motor 4, a bell mouth 5, and a heat exchanger 6 serving as a blower are housed. The centrifugal fan 3 creates a flow of air that is sucked into the case 1 from the suction port 2a and blown out from the blowout port 2b to the target space. The heat exchanger 6 is disposed in such an air flow path and adjusts the temperature of the air.
　吸込口２ａは、化粧パネル２の中央部に設けられており、化粧パネル２の広範囲にひろがっている。また、本実施の形態１の吸込口２ａは、グリル（grille）タイプとして設けられているが、本発明は、これに限定されるものではない。吸込口２ａの上流側（ケース１の内部側）には、吸込口２ａを通過した後の空気を除塵するフィルタ１４が設けられている。 The suction port 2 a is provided at the center of the decorative panel 2 and extends over a wide area of the decorative panel 2. Moreover, although the suction inlet 2a of this Embodiment 1 is provided as a grille (grille) type, this invention is not limited to this. A filter 14 is provided on the upstream side of the suction port 2a (inside the case 1) to remove air after passing through the suction port 2a.
　一例であるが、本実施の形態１では、化粧パネル２及び吸込口２ａはそれぞれ平面視矩形の外縁を有している。 As an example, in the first embodiment, the decorative panel 2 and the suction port 2a each have a rectangular outer edge in plan view.
　化粧パネル２の外縁と、吸込口２ａの外縁との間の領域には、複数の吹出口２ｂが設けられている。本実施の形態１では、化粧パネル２及び吸込口２ａそれぞれが、４辺の縁を有していることに対応し、吹出口２ｂは、４つ設けられており、吹出口２ｂそれぞれが、後述するコーナー部を除いて化粧パネル２及び吸込口２ａにおける対応する辺に沿うように配置されている。また、４つの吹出口２ｂは、吸込口２ａを包囲するように位置している。各吹出口２ｂには、吹出す空気の方向を調整する風向板２ｃが設けられている。 A plurality of air outlets 2b are provided in a region between the outer edge of the decorative panel 2 and the outer edge of the suction port 2a. In the first embodiment, each of the decorative panel 2 and the inlet 2a has four edges, and there are four outlets 2b, each of which is described later. It arrange | positions along the edge | side which corresponds in the decorative panel 2 and the suction inlet 2a except the corner part to perform. Moreover, the four blower outlets 2b are located so that the suction inlet 2a may be surrounded. Each air outlet 2b is provided with a wind direction plate 2c for adjusting the direction of air to be blown out.
　ケース１内の中央部には、ファンモータ４が配置されている。ファンモータ４は、ケース１の上面部１ａの下面（ケースの内部空間側）に支持されている。ファンモータ４における下向きに延びる回転軸には、遠心ファン３が取り付けられている。さらに、遠心ファン３と吸込口２ａとの間には、吸込口２ａから遠心ファン３に向かう吸込風路を形成するベルマウス５が設けられている。遠心ファン３は、吸込口２ａからケース１内に空気を吸込み、その空気を吹出口２ｂから対象空間である部屋（室内）１５へと流出させる。 フ ァ ン A fan motor 4 is disposed in the center of the case 1. The fan motor 4 is supported on the lower surface (the inner space side of the case) of the upper surface portion 1 a of the case 1. A centrifugal fan 3 is attached to a rotating shaft extending downward in the fan motor 4. Further, a bell mouth 5 is provided between the centrifugal fan 3 and the suction port 2 a to form a suction air path from the suction port 2 a toward the centrifugal fan 3. The centrifugal fan 3 sucks air into the case 1 from the suction port 2a, and causes the air to flow out from the blowout port 2b to a room (indoor) 15 that is a target space.
　遠心ファン３における径方向外側には、熱交換器６が配置されている。換言するならば、熱交換器６は、遠心ファン３によってケース内に生じる空気の流動路中に配置されて、その空気と冷媒との間で熱交換を行う。 A heat exchanger 6 is disposed on the radially outer side of the centrifugal fan 3. In other words, the heat exchanger 6 is arranged in a flow path of air generated in the case by the centrifugal fan 3 and performs heat exchange between the air and the refrigerant.
　熱交換器６は、所定の間隔をあけて配置された複数のフィンと、それらフィンを貫通する伝熱管とを有し、伝熱管は、図示しない周知の室外機に接続配管によって接続されており、それにより熱交換器６には、冷却された冷媒または加熱された冷媒が供給される。熱交換器６の下方には、凝縮水を一時貯留するためのドレンパン１２が設けられている。さらに、ドレンパン１２の裏側には、電子基板を収納する電気品箱１３が設けられている。なお、遠心ファン３、ベルマウス５、熱交換器６の構成や態様は特に限定されるものではなく、本実施の形態１では周知のものが用いられている。 The heat exchanger 6 has a plurality of fins arranged at predetermined intervals and a heat transfer pipe that penetrates the fins, and the heat transfer pipe is connected to a well-known outdoor unit (not shown) by a connection pipe. Thereby, the cooled or heated refrigerant is supplied to the heat exchanger 6. A drain pan 12 for temporarily storing condensed water is provided below the heat exchanger 6. Further, on the back side of the drain pan 12, an electrical component box 13 for storing the electronic substrate is provided. In addition, the structure and aspect of the centrifugal fan 3, the bellmouth 5, and the heat exchanger 6 are not specifically limited, In this Embodiment 1, a well-known thing is used.
　このような構成において、遠心ファン３が回転すると部屋１５の空気が化粧パネル２の吸込口２ａに吸い込まれる。そして、フィルタ８において除塵された空気は、ベルマウス５によって案内されて遠心ファン３に吸い込まれる。さらに、遠心ファン３では、下方から上方に向かって吸い込まれた空気が、水平方向に、且つ、径方向でいう外側方向に、吹き出される。そのように吹き出された空気は、熱交換器６を通過する際に、熱交換及び湿度調整された後、流れ方向を下方に変更して、吹出口２ｂそれぞれから部屋１５に吹き出される。 In such a configuration, when the centrifugal fan 3 rotates, the air in the room 15 is sucked into the suction port 2a of the decorative panel 2. The air removed by the filter 8 is guided by the bell mouth 5 and sucked into the centrifugal fan 3. Further, in the centrifugal fan 3, the air sucked upward from below is blown out in the horizontal direction and outward in the radial direction. The air thus blown out is subjected to heat exchange and humidity adjustment when passing through the heat exchanger 6, and then the flow direction is changed downward to be blown out from the respective outlets 2 b to the room 15.
　少なくとも一つの吸込口と少なくとも一つの吹出口との間には、空調対象の空間側に（すなわち図示例では下方に）突出する段差部が設けられている。具体的に一例である本実施の形態１では、１つの吸込口２ａと、４つの吹出口２ｂとの間に、空調対象の空間側に突出する段差部１０が設けられている。 Between the at least one inlet and the at least one outlet, there is a stepped portion that protrudes toward the air-conditioning space (that is, downward in the illustrated example). In the first embodiment, which is a specific example, a stepped portion 10 that protrudes toward the space to be air-conditioned is provided between one inlet 2a and four outlets 2b.
　段差部１０は、吹出口２ｂが形成されている面から空調対象の空間側に延びる立ち上がり側面１０ａと、突出端部１０ｂとを有している。吸込口２ａと、段差部１０の突出端部１０ｂとは、同じ面上に位置している。本実施の形態１では、吸込口２ａは、ケース１の高さ寸法の方向（図２の紙面上下方向）でみて、段差部１０の突出端部１０ｂと同じ高さに設けられている。 The step portion 10 has a rising side surface 10a extending from the surface on which the air outlet 2b is formed to the space to be air-conditioned and a protruding end portion 10b. The suction port 2a and the protruding end portion 10b of the step portion 10 are located on the same surface. In the first embodiment, the suction port 2a is provided at the same height as the protruding end portion 10b of the stepped portion 10 as viewed in the height dimension direction of the case 1 (the vertical direction in FIG. 2).
　また、側方から見て（図２においてみて）、吸込口２ａの形成面Ｘと直交する方向に延びる線であって立ち上がり側面の基部１０ｃを通る線である基準線Ｙと、立ち上がり側面１０ａとの角度は、－４５度～＋４５度の間が好適である。 Further, when viewed from the side (as viewed in FIG. 2), a reference line Y that extends in a direction orthogonal to the formation surface X of the suction port 2a and passes through the base portion 10c of the rising side surface, and the rising side surface 10a The angle is preferably between −45 degrees and +45 degrees.
　また、段差部１０は、吸込口２ａを囲むように形成されている。段差部１０の立ち上がり側面１０ａは、吸込口２ａを囲むようにループ状（一周して閉じている）に形成されている。 Further, the step portion 10 is formed so as to surround the suction port 2a. The rising side surface 10a of the stepped portion 10 is formed in a loop shape (closed around the circumference) so as to surround the suction port 2a.
　以上のように構成された本実施の形態１に係る空気調和装置によれば、吸込口と吹出口との間に段差部が存在するため、吸込口と吹出口との間の沿面距離が拡大し、吹出口から出た流れが吸込口へ引き寄せられにくくなる。つまり、吹出口から吹き出された流れが吸込口に流入することを低減することができ、ショートサークルを抑制することができる。また、このショートサークル抑制効果は、吹出口から空気を下向きに吹き出したときに有効であり、一例を挙げると、暖房時において空気を床面へ吹き付けるように運転させたい場面で、空気を下方へ吹き出せるようになるため快適性が向上する。 According to the air conditioner according to Embodiment 1 configured as described above, a stepped portion exists between the suction port and the air outlet, and thus the creepage distance between the air inlet and the air outlet is increased. However, it becomes difficult for the flow coming out of the air outlet to be drawn to the air inlet. That is, it can reduce that the flow blown out from the blower outlet flows into a suction mouth, and can suppress a short circle. In addition, this short circle suppression effect is effective when air is blown downward from the air outlet. For example, in a scene where air is blown to the floor during heating, the air is lowered downward. Comfortability is improved because it can be blown out.
　実施の形態２．
　次に、図５及び図６に基づいて本発明の実施の形態２について説明する。図５及び図６はそれぞれ、本実施の形態２に関する、図１及び図２と同態様の図である。なお、本実施の形態２は、以下に説明する部分を除いては、上記実施の形態１と同様であるものとする。 Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and FIG. 6 are diagrams of the same mode as FIG. 1 and FIG. The second embodiment is the same as the first embodiment except for the parts described below.
　図５及び図６に示されるように、本実施の形態２の空気調和装置２００における化粧パネル２０２では、吸込口２０２ａが、段差部１０の突出端部１０ｂよりも、ケース１の内部側（図示例では上方）に位置している。 As shown in FIGS. 5 and 6, in the decorative panel 202 in the air-conditioning apparatus 200 of the second embodiment, the suction port 202 a is located on the inner side of the case 1 than the protruding end portion 10 b of the stepped portion 10 (see FIG. In the example shown, it is located above.
　このように構成された本実施の形態２に係る空気調和装置においても、上記実施の形態１と同様な利点が得られている。さらに加えて、実施の形態２においては、吸込口と吹出口との間の沿面距離が、上記実施の形態１の場合よりもさらに拡大させることができ、より一層、ショートサークルを抑制することができる。 In the air conditioner according to the second embodiment configured as described above, the same advantages as those of the first embodiment are obtained. In addition, in the second embodiment, the creepage distance between the suction port and the outlet can be further increased as compared with the first embodiment, and the short circle can be further suppressed. it can.
　実施の形態３．
　次に、図７及び図８に基づいて本発明の実施の形態３について説明する。図７及び図８はそれぞれ、本実施の形態２に関する、図１及び図２と同態様の図である。なお、本実施の形態３は、以下に説明する部分を除いては、上記実施の形態１と同様であるものとする。 Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to FIGS. FIGS. 7 and 8 are diagrams related to the second embodiment in the same manner as FIGS. 1 and 2. In addition, this Embodiment 3 shall be the same as that of the said Embodiment 1 except the part demonstrated below.
　上述した実施の形態１及び２では、いわゆる４方向吹出しカセット形の室内機を例に説明してきたが、本発明はこれに限定されるものではない。本実施の形態３は、吹き出し方向の態様が実施の形態１及び２と異なる場合の一例であり、いわゆる２方向吹出しカセット形の室内機に関するものである。 In Embodiments 1 and 2 described above, a so-called four-direction outlet cassette type indoor unit has been described as an example, but the present invention is not limited to this. The third embodiment is an example in which the direction of the blowing direction is different from those of the first and second embodiments, and relates to a so-called two-way blowing cassette type indoor unit.
　本実施の形態３の空気調和装置３００における化粧パネル３０２は、正面視で（部屋内から真直ぐ見上げて）、長方形に形成されている。そして、化粧パネル３０２には、２つの吸込口３０２ａと、２つの吹出口３０２ｂとが設けられている。吸込口３０２ａ及び吹出口３０２ｂは共に、化粧パネル３０２の長辺方向に延びている。 The decorative panel 302 in the air-conditioning apparatus 300 according to Embodiment 3 is formed in a rectangular shape when viewed from the front (looking straight up from the room). The decorative panel 302 is provided with two suction ports 302a and two air outlets 302b. Both the suction port 302a and the blowout port 302b extend in the long side direction of the decorative panel 302.
　２つの吸込口３０２ａは、２つの吹出口３０２ｂの間（化粧パネル３０２の短辺方向でいう間）に配置されている。吸込口３０２ａと吹出口３０２ｂとの間には、段差部３１０が設けられている。段差部３１０も、立ち上がり側面３１０ａと、突出端部３１０ｂとを有している。 The two suction ports 302a are disposed between the two air outlets 302b (in the short side direction of the decorative panel 302). A step portion 310 is provided between the suction port 302a and the air outlet 302b. The step portion 310 also has a rising side surface 310a and a protruding end portion 310b.
　吸込口３０２ａと段差部３０２の突出端部３１０ｂとは、同じ面上に位置していてもよいし、あるいは、吸込口３０２は、段差部３０２の突出端部３１０ｂよりも、ケースの内部側に位置していてもよい。なお、図７及び図８は、吸込口３０２は、段差部３０２の突出端部３１０ｂよりも、ケースの内部側に位置している場合を例に図示している。 The suction port 302a and the protruding end portion 310b of the stepped portion 302 may be located on the same surface, or the suction port 302 is located closer to the inside of the case than the protruding end portion 310b of the stepped portion 302. May be located. 7 and 8 illustrate an example in which the suction port 302 is located on the inner side of the case with respect to the protruding end portion 310b of the stepped portion 302.
　このように構成された本実施の形態３に係る空気調和装置においても、上記実施の形態１又は２と同様な利点が得られている。 In the air conditioner according to the third embodiment configured as described above, the same advantages as those of the first or second embodiment are obtained.
　実施の形態４．
　次に、図９に基づいて本発明の実施の形態４について説明する。図９は、本実施の形態４に関する、図２と同態様の図である。なお、本実施の形態４は、以下に説明する部分を除いては、上記実施の形態１又は２と同様であるものとする。 Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described based on FIG. FIG. 9 is a diagram of the same mode as FIG. In addition, this Embodiment 4 shall be the same as that of the said Embodiment 1 or 2 except the part demonstrated below.
　本実施の形態４の空気調和装置４００における化粧パネル４０２では、段差部４１０の立ち上がり側面４１０ａは、空調対象の空間側に突出する方向に向かうにしたがい吹出口２ｂ側に傾く傾斜部分を含んでいる。図９の図示例では、立ち上がり側面４１０ａ全体が、そのような傾斜部分で構成されている。なお、このような傾斜部分は、上記実施の形態１の図２の説明に当て嵌めると、基準線Ｙと、立ち上がり側面４１０ａとの角度は、－４５度～０度未満の範囲となる。なお、図９の図示例では、吸込口は、実施の形態１の態様として示しているが、本実施の形態４は、これに限定されず、吸込口を実施の形態２の態様のように設けて実施することもできる。また、図９の図示例では、４方向吹出しカセット形の室内機に適用した場合を示しているが、本実施の形態４は、これに限定されず、２方向吹出しカセット形の室内機に適用することもできる。 In the decorative panel 402 in the air conditioning apparatus 400 of the fourth embodiment, the rising side surface 410a of the stepped portion 410 includes an inclined portion that is inclined toward the air outlet 2b as it goes in the direction protruding toward the space to be air-conditioned. . In the illustrated example of FIG. 9, the entire rising side surface 410a is formed of such an inclined portion. Note that such an inclined portion fits the description of FIG. 2 of the first embodiment, and the angle between the reference line Y and the rising side surface 410a is in a range of −45 degrees to less than 0 degrees. In the illustrated example of FIG. 9, the suction port is shown as an aspect of the first embodiment. However, the fourth embodiment is not limited to this, and the suction port is similar to the aspect of the second embodiment. It can also be provided. 9 shows a case where the present invention is applied to a four-way outlet cassette type indoor unit, but the fourth embodiment is not limited to this and is applied to a two-way outlet cassette type indoor unit. You can also
　このように構成された本実施の形態４に係る空気調和装置においても、上記実施の形態１又は２と同様な利点が得られている。さらに加えて、実施の形態４においては、段差部の立ち上がり側面が吹出口側に傾く傾斜部分を含んでいることから、吹出口から流出した空気は、吸込口側に向かうことが極めて困難になり、それにより、ショートサークルの防止効果が極めて高くなるという利点がある。 In the air conditioner according to the fourth embodiment configured as described above, the same advantages as those of the first or second embodiment are obtained. In addition, in the fourth embodiment, since the rising side surface of the step portion includes an inclined portion that is inclined toward the air outlet side, the air that has flowed out from the air outlet becomes extremely difficult to move toward the air inlet side. Thereby, there is an advantage that the effect of preventing a short circle becomes extremely high.
　実施の形態５．
　次に、図１０に基づいて本発明の実施の形態４について説明する。図１０は、本実施の形態５に関する、図１と同態様の図である。なお、本実施の形態１０は、以下に説明する部分を除いては、上記実施の形態１、２又は４と同様であるものとする。 Embodiment 5 FIG.
Next, a fourth embodiment of the present invention will be described based on FIG. FIG. 10 is a diagram of the same mode as FIG. The tenth embodiment is the same as the first, second, or fourth embodiment except for the parts described below.
　本実施の形態５の空気調和装置５００は、いわゆる全周吹きカセット形室内機であり、空気調和装置５００の化粧パネル５０２では、平面視、上記のコーナー部２２それぞれの内側に相当する部分（すなわち化粧パネルのコーナー部）に、吹出口（メイン吹出口）２ｂよりも開口面積が小さいサブ吹出口５０２ｄを有している。換言するならば、４つのサブ吹出口５０２ｄはそれぞれ、対応する一対の吹出口（メイン吹出口）２ｂの間に設けられている。 The air conditioner 500 according to the fifth embodiment is a so-called all-round blow cassette type indoor unit, and the decorative panel 502 of the air conditioner 500 has a portion corresponding to the inside of each of the corner portions 22 in plan view (that is, the inside). At the corner portion of the decorative panel, there is a sub air outlet 502d having an opening area smaller than that of the air outlet (main air outlet) 2b. In other words, each of the four sub outlets 502d is provided between a pair of corresponding outlets (main outlets) 2b.
　吹出口２ｂと吸込口２ａとの間のそれぞれ、及び、サブ吹出口５０２ｄと吸込口２ａとの間のそれぞれには、段差部１０が設けられている。段差部１０の立ち上がり側面は、ループ状に延びている。なお、段差部の立ち上がり側面の傾きの態様や、段差部の突出端部と吸込口２ａとの高さ関係は、上記実施の形態１、２又は４の何れかであればよい。 Step portions 10 are provided between each of the outlet 2b and the inlet 2a and between the sub outlet 502d and the inlet 2a. The rising side surface of the stepped portion 10 extends in a loop shape. In addition, the aspect of the inclination of the rising side surface of the stepped portion and the height relationship between the protruding end portion of the stepped portion and the suction port 2a may be any of the first, second, and fourth embodiments.
　このように構成された本実施の形態５に係る空気調和装置においても、上記実施の形態１又は２と同様な利点が得られている。さらに加えて、実施の形態５においては、サブ吹出口を有することで全方向に吹き出すことが可能でありながら、全方向に関してショートサイクル抑制効果が得られる。また、サブ吹出口における気流の吹き出す勢いは、吹出口（メイン吹出口）における気流の吹き出す勢いよりも弱くなりがちであり、ショートサイクルはより生じやすいという事情があるところ、本実施の形態５によれば、そのようなショートサイクルが生じやすいサブ吹出口の吹き出しに対しても、ショートサイクル抑制効果を得ることができる。 In the air conditioner according to the fifth embodiment configured as described above, the same advantages as those of the first or second embodiment are obtained. In addition, in the fifth embodiment, by having the sub air outlet, it is possible to blow out in all directions, but the short cycle suppressing effect is obtained in all directions. Further, the momentum at which the airflow blows out at the sub outlet is apt to be weaker than the momentum at which the airflow blows out at the outlet (main outlet), and the short cycle is more likely to occur. According to this, it is possible to obtain a short cycle suppressing effect even for the blowout of the sub-outlet where such a short cycle is likely to occur.
　以上、好ましい実施の形態を参照して本発明の内容を具体的に説明したが、本発明の基本的技術思想及び教示に基づいて、当業者であれば、種々の改変態様を採り得ることは自明である。 Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.
　１　ケース、２、２０２、３０２、４０２、５０２　化粧パネル、２ａ、２０２ａ、３０２ａ　吸込口、２ｂ，３０２ｂ　吹出口、３　遠心ファン、６　熱交換器、１０，３１０，４１０　段差部、１０ａ、３１０ａ、４１０ａ　立ち上がり側面、１０ｂ、３１０ｂ　突出端部、１０ｃ　基部、２２　コーナー部、　１００、２００、３００、４００、５００　空気調和装置、５０２ｄ　サブ吹出口。 1 case, 2, 202, 302, 402, 502 decorative panel, 2a, 202a, 302a inlet, 2b, 302b outlet, 3 centrifugal fan, 6 heat exchanger, 10, 310, 410 stepped portion, 10a, 310a, 410a Rising side surface, 10b, 310b protruding end, 10c base, 22 corner, 100, 200, 300, 400, 500 air conditioner, 502d sub outlet.

Claims (7)

  1. 　空調対象の空間の天井に設けられたケースと、
    　該ケース内に配置された、送風部及び熱交換器とを備え、
    　前記ケースの下部に、少なくとも一つの吹出口と少なくとも一つの吸込口とが設けられている、空気調和装置であって、
    　前記吹出口と前記吸込口との間には、空調対象の空間側に突出する段差部が設けられている、
    空気調和装置。     A case provided on the ceiling of the space to be air-conditioned,
    It is provided with an air blowing part and a heat exchanger arranged in the case,
    In the lower part of the case, at least one air outlet and at least one air inlet are provided, an air conditioner,
    Between the blowout port and the suction port, a stepped portion that protrudes toward the space to be air-conditioned is provided.
    Air conditioner.
  2. 　前記吸込口と、前記段差部の突出端部とは、同じ面上に位置している、
    請求項１の空気調和装置。     The suction port and the protruding end of the stepped portion are located on the same surface,
    The air conditioning apparatus according to claim 1.
  3. 　前記吸込口は、前記段差部の突出端部よりも、前記ケースの内部側に位置している、
    請求項１の空気調和装置。     The suction port is located on the inner side of the case than the protruding end of the stepped portion,
    The air conditioning apparatus according to claim 1.
  4. 　前記段差部は、立ち上がり側面を有しており、
    　前記吸込口の形成面と直交する方向に延びる線であって前記立ち上がり側面の基部を通る線である基準線と、前記立ち上がり側面との角度は、－４５度～＋４５度の間である、
    請求項１～３の何れか一項の空気調和装置。     The step portion has a rising side surface,
    The angle between a reference line, which is a line extending in a direction perpendicular to the formation surface of the suction port and passing through the base of the rising side surface, and the rising side surface is between −45 degrees and +45 degrees.
    The air conditioner according to any one of claims 1 to 3.
  5. 　前記段差部は、立ち上がり側面を有しており、
    　前記立ち上がり側面は、空調対象の空間側に突出する方向に向かうにしたがい前記吹出口側に傾く傾斜部分を含んでいる、
    請求項１～３の何れか一項の空気調和装置。     The step portion has a rising side surface,
    The rising side surface includes an inclined portion that is inclined toward the air outlet side in a direction that protrudes toward the space side to be air-conditioned.
    The air conditioner according to any one of claims 1 to 3.
  6. 　前記段差部は、前記吸込口を囲むように設けられている、
    請求項１～５の何れか一項の空気調和装置。     The step portion is provided so as to surround the suction port.
    The air conditioner according to any one of claims 1 to 5.
  7. 　前記ケースの下部は、化粧パネルで構成されており、
    　前記化粧パネルは、平面視矩形の外縁を有しており、
    　４つの前記吹出口が、メイン吹出口として、前記化粧パネルの４辺に沿うように設けられており、
    　４つのサブ吹出口が、前記化粧パネルの４つのコーナー部に沿うように設けられており、
    　前記サブ吹出口は、前記メイン吹出口よりも開口面積が小さく、
    　前記メイン吹出口と前記吸込口との間のそれぞれ、及び、前記サブ吹出口と前記吸込口との間のそれぞれには、前記段差部が設けられており、
    　前記段差部の立ち上がり側面は、ループ状に延びている、
    請求項１～６の何れか一項の空気調和装置。     The lower part of the case is composed of a decorative panel,
    The decorative panel has a rectangular outer edge in plan view,
    The four outlets are provided along the four sides of the decorative panel as main outlets,
    Four sub outlets are provided along the four corners of the decorative panel,
    The sub outlet has a smaller opening area than the main outlet,
    Each step between the main outlet and the inlet and each of the sub outlet and the inlet is provided with the stepped portion,
    The rising side surface of the stepped portion extends in a loop shape,
    The air conditioner according to any one of claims 1 to 6.
PCT/JP2014/050068 2014-01-07 2014-01-07 Air-conditioning device WO2015104791A1 (en)

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