WO2016092669A1 - Air-conditioning device - Google Patents

Air-conditioning device Download PDF

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Publication number
WO2016092669A1
WO2016092669A1 PCT/JP2014/082843 JP2014082843W WO2016092669A1 WO 2016092669 A1 WO2016092669 A1 WO 2016092669A1 JP 2014082843 W JP2014082843 W JP 2014082843W WO 2016092669 A1 WO2016092669 A1 WO 2016092669A1
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WO
WIPO (PCT)
Prior art keywords
heat insulating
insulating material
air
housing
heat
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Application number
PCT/JP2014/082843
Other languages
French (fr)
Japanese (ja)
Inventor
浩之 豊田
長橋　克章
岸谷　哲志
尾原　秀司
隼人 森
Original Assignee
ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー （ホンコン） リミテッド
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Application filed by ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー （ホンコン） リミテッド filed Critical ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー （ホンコン） リミテッド
Priority to PCT/JP2014/082843 priority Critical patent/WO2016092669A1/en
Publication of WO2016092669A1 publication Critical patent/WO2016092669A1/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
    • F24F13/20—Casings or covers

Definitions

  • the present invention relates to an air conditioner.
  • FIG. 7 shows a cross-sectional shape of a conventional indoor unit.
  • an outer shell is configured by the housing 101 and the suction grill 114 having the suction port 114s.
  • the fan 109 sucks indoor air from the suction port 114s by driving the motor 108, removes dust with the filter 115, and sends it to the heat exchanger 107 (arrow ⁇ 1 in FIG. 7).
  • the air whose temperature is adjusted by heat exchange in the heat exchanger 107 is blown out into the room from the outlet 112f of the decorative panel 112 (arrow ⁇ 2 in FIG. 7).
  • the air direction of the air from the outlet 112 f is changed by the louver 113.
  • a water receiver 111 is provided below the heat exchanger 107 and receives dew liquid attached to the heat exchanger 107.
  • the inside of the housing 101 of the indoor unit 10A1 is covered with a heat insulating material 102 so that the heat of the air after heat exchange in the heat exchanger 107 is not released. There is no gap between the housing 101 and the heat insulating material 102.
  • the linear expansion coefficient indicating the degree of expansion / contraction with respect to the temperature of the metal plate of the housing 101 and the heat insulating material 102 made of resin is greatly different.
  • the resin has a value about 7 to 10 times that of iron, and is about 7 to 10 times larger than the temperature change.
  • the housing 101 Slip occurs on the surface where the heat insulating material 102 contacts. Therefore, there may be a sound that the casing 101 and the heat insulating material 102 are rubbed.
  • a rubbing sound may be generated when the inner heat insulating material 102 expands and rubs against the housing 101 during heating in winter.
  • the rubbing sound may be uncomfortable for the user when the surroundings are quiet, such as at night, and it is desirable that the sound be generated as little as possible.
  • the space may have insulative performance inferior to that of the heat insulating material, and providing the space may reduce the heat insulating performance.
  • the temperature of the air is different between the indoor unit 10A1 through which the temperature-adjusted air flows and the outside of the indoor unit 10A1 that is in contact with the air inside the ceiling that is easily affected by the outside air.
  • the cool air flowing inside the indoor unit 10A1 is heated by the outside heat, or conversely, the heat of the inside warm air is radiated to the outside. Need to prevent. Therefore, it is conceivable to increase the thickness of the heat insulating material 102 in order to obtain sufficient heat insulating performance.
  • the heat insulating performance is increased by increasing the thickness of the heat insulating material 102.
  • the ceiling-embedded indoor unit 10A1 is limited in size because it conforms to a standard ceiling design standard. Therefore, when the heat insulating material 102 is thickened, the weight of the apparatus increases, and accordingly, the volume of the heat insulating material inside the indoor unit 10A1 increases, so that the air flow path must be narrowed. The narrowing of the flow path leads to an increase in ventilation resistance, and there is a problem that energy saving is reduced due to an increase in motor load and an increase in heat loss.
  • Patent Document 1 proposes a structure in which the side plate is a resin molded product and has a double structure, and an air layer exists in the side plate.
  • JP 2011-185584 A (FIG. 1, FIG. 3, etc.)
  • the heat insulating material 102 generally has a larger linear expansion coefficient between the metal plate of the housing 101 and the heat insulating material 102. Therefore, in order to suppress the above-mentioned rubbing sound, it is desirable to provide a space between the housing 101 and the heat insulating material 102 in order to eliminate the influence of expansion of the heat insulating material 102.
  • Patent Document 1 describes a structure in which a gap is provided between an outer wall and an inner wall by a double structure although the purpose is different. Providing a space provides an air layer between the walls.
  • the thermal conductivity of air is slightly lower than that of a heat insulating material such as styrene foam, and air is less likely to conduct heat. For this reason, if only heat conduction is considered, the heat insulation performance is higher when the air layer is provided. However, if the air layer is too thick, heat transfer due to convection occurs. On the other hand, heat transfer due to radiation (radiation) occurs even if the air layer is thin.
  • the space inside the housing 101 is narrowed.
  • the narrowing of the space for example, if the air path of the air outlet 112f becomes narrow, there is a possibility that the ventilation resistance increases and the air volume decreases or the power of the fan 109 increases. Therefore, the capability and energy saving performance of the air conditioner are impaired.
  • the present invention has been devised in view of the above circumstances, and an object thereof is to provide an air conditioner that can suppress the generation of sound and has high heat insulation.
  • an air conditioner according to claim 1 of the present invention is provided inside a housing, and includes a heat exchanger that adjusts the temperature of air, a fan that causes the air to flow, and a motor that rotates the fan.
  • a heat insulating material provided between the second flow path to which the air that has passed through the heat exchanger flows and to which the blowout port is connected, and a space is provided between the housing and the heat insulating material. In the space, a low emissivity member having a lower emissivity than that of the heat insulating material is provided.
  • FIG. 10 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 2.
  • FIG. 11 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 3.
  • FIG. 10 is a cross-sectional view corresponding to the II cross section of FIG. Sectional drawing which shows the cross-sectional shape of the conventional indoor unit.
  • This invention is the invention which concerns on the heat insulating material of the indoor unit in an air conditioning apparatus, and the surrounding structure accompanying this.
  • the feature of the present invention resides in a structure in which a space is provided between the casing of the indoor unit and the heat insulating material inside the casing to suppress the generation of sound and improve the heat insulating performance.
  • FIG. 1 is a perspective view showing a state in which an indoor unit of an air-conditioning apparatus according to Embodiment 1 of the present invention is installed.
  • 2 is a cross-sectional view taken along the line II of FIG. Arrows ⁇ 1 and ⁇ 2 in FIGS. 1 and 2 indicate air flows (flow paths).
  • the air conditioner A of Embodiment 1 is an apparatus having a ceiling-embedded indoor unit A1 that blows out cool air, warm air, and the like downward from the air outlets 12a, 12b, 12c, and 12d (in the direction of the arrow ⁇ 2).
  • the indoor unit A1 of the air conditioner A includes a main body h and a decorative panel 12. Below the decorative panel 12 is the room and above is the interior of the ceiling. The decorative panel 12 is attached below the main body h so as to be substantially flush with the ceiling surface t1 (see FIG. 2). The main body h is installed and fixed on the back of the ceiling (above the ceiling surface t1) using the suspension fitting k1 and the suspension bolt b1. The decorative panel 12 is fixed to the main body h using screws (not shown) or the like.
  • the main body h includes a housing 1 and a heat insulating material 2.
  • casing 1 is formed in the bottomed box shape of the prism which has an opening below using the metal plate.
  • the housing 1 is formed by forming two or more sheet metals into a predetermined shape with a press and fixing them with screws, rivets or the like.
  • the foamed polystyrene of the heat insulating material 2 is disposed in the inside of the housing 1 with the opening facing downward for heat insulation, prevention of dew condensation, soundproofing and the like.
  • the hanging metal fitting k1 is attached to the side portion of the housing 1.
  • a heat exchanger 7 and a fan 9 are accommodated in the main body h.
  • the fan 9 is a centrifugal fan, for example, and sends the heat flow to the heat exchanger 7 while changing the direction of air flow by approximately 90 degrees.
  • the water receiver 11 receives and collects drain water that is condensed and dripped onto the surface of the heat exchanger 7.
  • the water receiver 11 is, for example, a foamed polystyrene molded product.
  • the heat exchanger 7 is connected to an outdoor unit (not shown) through a pipe through which the refrigerant flows.
  • FIG. 3 is a top view of a water receiver, a heat exchanger, and the like viewed from above.
  • the heat exchanger 7 is formed in a shape that is bent along the planar shape of the indoor unit A1.
  • the water receiver 11 is formed with a water channel 11 a having a groove shape (concave shape downward) along the shape of the heat exchanger 7.
  • the groove-shaped water channel 11a has a shape larger than that of the heat exchanger 7 when viewed from above so that water drops dripped from the heat exchanger 7 can be sufficiently received.
  • the water channel 11a that receives water droplets from the heat exchanger 7 is surrounded by the wall plate 11b so that the liquid (dew liquid) in the water channel 11a does not leak to the outside.
  • the liquid collected in the water channel 7a is pumped up by a pump (not shown) and discharged through a drain pipe.
  • the heat exchanger 7 is disposed so as to cover the blowout surface 9a (see FIG. 2) of the fan 9, and the air blown out from the fan 9 has a structure that almost passes through the heat exchanger 7. At this time, the air passing through the heat exchanger 7 is suddenly cooled or heated. Therefore, moisture contained in the air that has become the dew point temperature or less is exposed to the surface of the heat exchanger 7.
  • the suction grille 14 having the suction port 14s is attached to almost the center of the decorative panel 12.
  • the decorative panel 12 has outlets 12a, 12b, 12c, and 12d.
  • the fan 9 housed in the main body h is rotated by the driving force of the motor 8 to take in indoor air (arrow ⁇ 1 in FIG. 2).
  • the taken-in air passes through the heat exchanger 7 to exchange heat with the refrigerant, and the temperature is adjusted.
  • the temperature-adjusted air is discharged into the room from the outlets 12a, 12b, 12c, 12d by the action of the fan 9 (arrow ⁇ 2 in FIG. 2).
  • the indoor air is taken in from the inlet 14s of the grill 14 and passes through the filter 15 for removing dust and the like.
  • the air that has passed through the filter 15 is rectified so as to enter the center side of the fan 9 by the bell mouth 10, and flows into the center side of the fan 9 that is rotated by the motor 8.
  • the bell mouth 10 smoothly guides the sucked air to the fan 9 to reduce blowing sound and improve blowing performance.
  • the bell mouth 10 and the water receiver 11 are fixed to the main body h with screws (not shown).
  • the indoor air is sucked from the lower center of the fan 9 and blown out toward the heat exchanger 7 in the radial direction of the fan 9 (left-right direction in FIG. 2).
  • the air whose temperature is adjusted by passing through the heat exchanger 7 passes through the flow path formed by the water receiver 11 and the heat insulating material 2 and flows indoors from the outlets 12a, 12b, 12c and 12d (arrows in FIG. 2). ⁇ 2).
  • the decorative panel 12 having the outlets 12a, 12b, 12c, and 12d is provided with a louver 13. By moving the louver 13, it is possible to adjust the air ejection direction in the room.
  • the decorative panel 12 is fixed to the housing 1 with screws (not shown) or the like.
  • a metal housing 1 is provided around the heat insulating material 2.
  • the housing 1 is in contact with the air inside the ceiling (above the ceiling surface t1 in FIG. 2).
  • the temperature of the air inside the ceiling is affected by the outside air in the summer, and is as high as 30 ° C., for example.
  • the air that has passed through the heat exchanger 7 has a temperature as low as 20 ° C., for example.
  • the air that has passed through the heat exchanger 7 collides with the heat insulating material 2 and flows toward the outlets 12a, 12b, 12c, and 12d of the decorative panel 12 as indicated by an arrow ⁇ 2 in FIG. Therefore, the surface of the heat insulating material 2 on the side of the heat exchanger 7 always exchanges heat with the air that has passed through the heat exchanger 7, and the temperature is substantially close to the air temperature after passing through the heat exchanger 7.
  • the side outer surface of the housing 1 is always in contact with the air in the ceiling, and is close to the temperature of the air in the ceiling.
  • the surface of the heat insulating material 2 on the side of the heat exchanger 7 is closer to the temperature outside the housing 1, and is higher than the air temperature after passing through the heat exchanger 7, that is, the temperature close to the outside air temperature. It means to become. Thereby, the surface at the side of the heat exchanger 7 of the heat insulating material 2 heats the air that has passed through the heat exchanger 7 and whose temperature has been lowered. This results in energy loss and leads to a decrease in the cooling performance of the air conditioner A. That is, the energy saving performance of the air conditioner A is reduced.
  • the air temperature inside the ceiling (above the ceiling surface t1 in FIG. 2) is lower than the room due to the influence of outside air.
  • the air in contact with the surface of the heat insulating material 2 on the side of the heat exchanger 7 is naturally warm because it is heating.
  • the heat insulation performance of the heat insulating material 2 is low, that is, if the heat resistance is small, part of the heat of the air warmed by the heat exchanger 7 is radiated to the air inside the ceiling, resulting in energy loss. That is, the energy saving performance of the air conditioner A is reduced.
  • the air layer is provided between the housing 1 and the heat insulating material 2. That is, as the air layer, the first air layer 2s1 and the second air layer 2s2 on the side of the heat insulating material 2 and the first air layer 2t1 and the second air layer 2t2 on the heat insulating material 2 are formed. Is done.
  • the first and second air layers 2s1 and 2s2 on the side and the first and second air layers 2t1 and 2t2 on the upper side extend to the side surface and the upper surface of the main body h, respectively (see FIG. 2). (Depth direction, up-down direction, left-right direction).
  • the space of the heat insulating material 2 recessed in a stepped shape is divided into two, in other words, the first and second air layers 2s1 and 2s2 on the side portions.
  • a low emissivity material 3 is provided between and between the first and second air layers 2t1, 2t2.
  • the low emissivity material 3 is a material having a low emissivity.
  • a material with low emissivity is also a material with high reflectivity that reflects electromagnetic waves.
  • the low emissivity material 3 reflects infrared rays (electromagnetic waves) emitted from a surface having a high temperature and transmitted through the air layer, and suppresses heat transfer by the infrared rays. For this reason, the low emissivity material 3 does not need a thickness, and may be a film-like material.
  • Examples of the low emissivity material include a mirror-like metal surface. Specific examples include aluminum films. Aluminum is preferable because it is easy to process and does not rust. In addition, when it rusts, an emissivity will fall.
  • the emissivity of the low emissivity material 3 is 0.4 or less, and particularly preferably 0.1 or less. If the emissivity is 0.4 or less, general metal can be used to prevent radiation of heat passing through the space (air layers 2s1, 2s2, 2t1, 2t2).
  • the side portion between the housing 1 and the low emissivity material 3 is provided.
  • the first air layer 2s1 and the upper first air layer 2t1, the side second air layer 2s2 between the low emissivity material 3 and the heat insulating material 2, and the upper second air layer 2t2 ,It is formed.
  • each air layer (2s1, 2s2, 2t1, 2t2) can be made thin. Therefore, generation
  • each air layer (2s1, 2s2, 2t1, 2t2) is preferably 0.5 to 3 mm. If the thickness is less than 0.5 mm, the thermal conductivity may be inferior. If the thickness exceeds 3 mm, convection may occur.
  • the thickness of each air layer (2s1, 2s2, 2t1, 2t2) is most preferably 1 mm or more and 2 mm or less. By setting it to 1 mm or more and 2 mm or less, generation
  • the side of the heat insulating material 2 has a dent (air layer) in a staircase so as to have a flat surface 2a3 located substantially in the middle (substantially middle) between the surface 2a1 in contact with the housing 1 and the bottom surface 2a2 of the dent. It is provided in the shape.
  • the dent (air layer) is stepped on the upper portion of the heat insulating material 2 so as to have a plane 2b3 located substantially in the middle (substantially middle) between the surface 2b1 in contact with the housing 1 and the bottom surface 2b2 of the dent. It is provided in the shape.
  • a recess air layer (2s1, 2s2, 2t1, 2t2) having a predetermined thickness is formed between the housing 1 and the heat insulating material 2.
  • the low emissivity material 3 is affixed on the heat insulating material 2 with the adhesion layer, double-sided tape, etc. which are formed in the low emissivity material 3 itself so that the plane 2a3 of the side part of the heat insulating material 2 may be formed.
  • casing 1 is easily 1st by sticking the low emissivity material 3 to the plane 2a3 located in the substantially middle.
  • a structure in which the air layer 2s1 and the second air layer 2s2 are divided into two can be formed.
  • casing 1 is easily made by sticking the low emissivity material 3 on the plane 2b3 located substantially in the middle (substantially middle).
  • a structure in which the first air layer 2t1 and the second air layer 2t2 are divided into two can be formed. Therefore, productivity when providing two layers of air is improved.
  • the generation of sound can be suppressed by providing spaces (2s1, 2s2, 2t1, 2t2) between the housing 1 and the heat insulating material 2. Further, the low emissivity material 3 is placed between the first space layer 2s1 and the second space layer 2s2 on the side, and between the first space layer 2t1 and the second space layer 2t2 on the upper side.
  • the heat insulation performance is also improved by arranging.
  • the thermal conductivity of air is often lower than that of the foam insulating material 2.
  • emission by this air conditioning apparatus A and the heat transfer (heat transfer) by a convection heat insulation performance can be improved rather than the conventional air conditioning apparatus.
  • a constriction and a dent 1a that are convex toward the inner side of the indoor unit A1 are provided in a portion facing the space (first and second air layers 2s1, 2s2) of the housing 1. ing.
  • casing 1 can be improved, without changing the dimension of the outer side of indoor unit A1 (without protruding outside the indoor unit A1). Therefore, it is possible to prevent the housing 1 from being recessed even in a place where the heat insulating material 2 is provided with spaces (first and second air layers 2s1, 2s2).
  • the thickness of the housing 1 can be reduced by improving the strength of the housing 1. Therefore, the heat insulation performance can be improved by reducing the material cost and reducing the thickness of the housing 1 that is easily thermally conductive.
  • the first and second air layers 2s1 and 2s2 on the side of the recessed portion of the heat insulating material 2 and the first and second air layers 2t1 and 2t2 on the upper side are located above the heat exchanger 7 (ceiling side). It is provided only on the side. This is to reduce the number of dents as much as possible in order to increase the rigidity of the heat insulating material 2 as a whole.
  • thermal insulation is not so required.
  • the heat insulating material can be thickened and the heat insulating property can be easily increased. Therefore, it is one of the optimal shapes to provide the recesses directly above the motor 8 and only on the upper side (ceiling side) and the side of the heat exchanger 7 excluding the corners on the ceiling side of the heat insulating material 2.
  • the present air conditioner A by providing the first and second air layers 2s1, 2s2 on the side of the indoor unit A1 and the first and second air layers 2t1, 2t2 on the upper side, The generation of sound due to the temperature difference and the difference in linear expansion coefficient between the housing 1 and the heat insulating material 2 can be suppressed.
  • the low emissivity material 3 is provided in the space while providing a space between the housing 1 and the heat insulating material 2, heat conduction and heat radiation can be suppressed and heat insulating performance can be improved.
  • the recessed portion 1a of the housing 1 improves the strength of the housing 1, can be reduced in thickness, and can contribute to cost reduction.
  • a space (2s1, 2s2, 2t1, 2t2) is provided between the housing 1 and the heat insulating material 2 on the inside, and the space between the housing 1 and the heat insulating material 2 is substantially in the middle (substantially the middle).
  • the low emissivity material 3 suppresses the movement of heat due to radiation, and by dividing the space, the movement of heat due to air convection is also suppressed. Therefore, the heat insulation performance is improved.
  • the air conditioner A having the indoor unit A1 that suppresses the generation of sound due to the expansion of the heat insulating material 2 and has high heat insulating performance without increasing the thickness of the heat insulating material 2.
  • Embodiment 2 4 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 2.
  • FIG. The indoor unit 2A1 of the air conditioner 2A of Embodiment 2 is obtained by attaching the low emissivity material 23 to the bottom surfaces 22s1 and 22t1 of the recesses formed on the side surface and the top surface of the heat insulating material 22.
  • the low emissivity material 23 a low emissivity material similar to the low emissivity material 3 of the first embodiment is used. Since the other configuration is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.
  • a concave shape is formed at a position on the outer side of the heat exchanger 7 in the side surface and the side surface portion of the heat insulating material 22 facing the air flow path after being heat-exchanged by the heat exchanger 7.
  • a space 22s is formed.
  • the thicknesses of the spaces 22s and 22t are each preferably 0.5 to 3 mm as in the first embodiment, and most preferably 1 mm or more and 2 mm or less.
  • a concave space 22t is formed at a position outside the heat insulating material 2 facing the blades of the heat exchanger 7 and the fan 9 on the upper surface of the indoor unit 2A1.
  • heat is exchanged by the heat exchanger 7, and cooled or heated air having a temperature difference from the indoor air flows. .
  • the low emissivity material 23 is attached to the bottom surface 22s1 of the concave space 22s on the side surface portion of the heat insulating material 22 with an adhesive layer formed on itself, a double-sided tape, or the like. Similarly, the low emissivity material 23 is affixed to the bottom surface 22t1 of the concave space 22t on the top surface of the heat insulating material 22 with an adhesive layer formed on itself, a double-sided tape, or the like.
  • the low emissivity material 23 is pasted on the bottom surface 22s1 of the side space 22s of the heat insulating material 2 and the bottom surface 22t1 of the upper space 22t. What is necessary is just to incorporate in the housing
  • the housing 1 is often made of metal. Metals generally have a low emissivity. On the other hand, since the heat insulating material 2 is resin, the emissivity is higher than that of metal. Therefore, by adopting a configuration in which the low emissivity material 23 is attached to the heat insulating material 22 having a relatively high emissivity, heat transfer due to radiation on the surface of the heat insulating material 22 having a high emissivity can be suppressed. Therefore, by sticking the low emissivity material 23 to the surface of the heat insulating material 22, the heat insulating property can be improved by suppressing radiation compared to simply providing an air layer.
  • the low emissivity material 23 is attached to the side of the housing 1 facing the heat insulating material 22, the effect is small because the emissivity of the surface of the housing 1 is originally low.
  • the heat of the housing 1 is directly conducted to the low emissivity material 23.
  • the conducted heat is transmitted to the heat insulating material 22 by radiation.
  • the space can be interposed between the housing 1 and the low emissivity material 23 by pasting the low emissivity material 23 on the surface of the heat insulating material 22, the housing 1 is moved to the low emissivity material 3. Heat conduction can be suppressed.
  • the convection between the casing 1 and the heat insulating material 22 is achieved by providing the low emissivity material 23 on the bottom surfaces 22s1 and 22t1 of the recessed portions 22s and 22t having a thickness of 0.5 to 3 mm of the heat insulating material 2. Heat transfer due to radiation and conduction can be suppressed as much as possible. Therefore, the air conditioning apparatus 2A having the indoor unit 2A1 with high heat insulation is obtained. Therefore, energy saving of the air conditioner 2A can be achieved, and power consumption can be reduced.
  • the spaces 22s and 22t are interposed between the housing 1 and the heat insulating material 22, it is possible to suppress sound generated by rubbing the housing 1 and the heat insulating material 22. As a result, the air conditioner 2A having high performance can be realized.
  • the low emissivity material 23 on the bottom surfaces 22s1 and 22t1 of the recesses 22s and 22t of the heat insulating material 22
  • a method may be employed in which the material 23 is vapor-deposited on the bottom surfaces 22s1 and 22t1 of the recesses 22s and 22t of the heat insulating material 22 or a paint containing a material having a low emissivity 23 is applied.
  • FIG. 5 is a cross-sectional view taken along the line II of FIG. 1 of the indoor unit of the air-conditioning apparatus according to Embodiment 3.
  • the indoor unit 3A1 of the air-conditioning harmony device 3A of Embodiment 3 is provided with a convex protrusion 31t on the inner side of the housing 31 without being indented on the outer surface side of the heat insulating material 32, and is brought into contact with the heat insulating material 2.
  • a space is provided.
  • the low emissivity material 33 is affixed on the outer surface facing the housing
  • the low emissivity material 33 is a low emissivity material having the same properties as the low emissivity material 3 of the first embodiment.
  • casing 31 and the convex part 31t of an upper part are formed by drawing.
  • the convex portion 31t of the housing 31 is rigid not only in the horizontal direction shown in FIG. 5 but also in the vertical direction, thereby having rigidity against bending in the horizontal direction and the vertical direction. Therefore, it is desirable to form the convex portion 31 in the horizontal direction and the vertical direction.
  • the heat insulating material 32 can be configured as a flat surface without denting the outer surface 32g, so the outside is covered with a low emissivity material 33 in the form of a shrink film and is shrunk by heat to insulate the heat insulating material.
  • the low emissivity material 33 can be attached to the outer surface 32g of 32. Therefore, the trouble of attaching the low emissivity material 33 to the heat insulating material 32 is greatly reduced.
  • the strength of the housing 1 can be increased by providing the convex portion 31t.
  • the convex portion 31t of the throttle portion of the housing 1 is in point contact or line contact with the heat insulating material 32.
  • casing 31 and the outer surface of the heat insulating material 32 is made as small as possible, and the heat-transfer area is made small. Therefore, it is possible to suppress heat transfer due to heat conduction between the casing 31 and the heat insulating material 32.
  • the convex portion 31t of the housing 31 may be provided in at least one of the horizontal direction and the vertical direction, or the convex portion 31t may be provided inclined to the horizontal direction or the vertical direction.
  • the convex portion 31t of the housing 31 is preferably provided along at least two directions on the side portion and the upper portion. Thereby, the rigidity with respect to bending along these two directions can be improved.
  • the intersecting angle may be approximately vertical or may be other than approximately vertical.
  • the convex portion 31t of the housing 31 is formed in a direction extending radially from the motor 8 and in a direction intersecting substantially perpendicularly thereto. Or you may provide the convex part 31t in the direction which inclines plus and minus about 45 degree
  • FIG. 5 shows a case where the low emissivity material 33 is attached to the entire outer surface 32g of the heat insulating material 32 facing the casing 31, but a portion such as the vicinity of the motor 8 that does not necessarily require heat insulation is appropriately used. It is good also as a structure which does not affix the low emissivity material 33.
  • Embodiment 4 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 3.
  • FIG. The indoor unit 4A1 of the air conditioner 4A of Embodiment 4 provides a space by disposing the spacer 16 between the housing 1 and the heat insulating material 42.
  • the low emissivity material 43 is affixed on the outer surface facing the housing
  • FIG. With this configuration, it is possible to eliminate a contact portion between the housing 1 and the heat insulating material 42.
  • the low emissivity material 43 is a low emissivity material having the same properties as the low emissivity material 3 of the first embodiment. Since the configuration other than the above is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.
  • the spacer 16 is made of a soft and flexible material such as sponge.
  • the spacer 16 is a material that is easily deformed so as to absorb a difference in deformation amount between the heat insulating material 42 and the housing 1 due to a temperature change, and has a strength enough to maintain a space.
  • a material having a lower elastic modulus than the heat insulating material 42 or the housing 1 may be used.
  • the spacer 16 may be a porous material such as a sponge, or may be a rubber-like material such as an elastomer.
  • the spacer 16 can follow the deformation of the heat insulating material 42 and suppress the generation of sound.
  • casing 1 of the heat insulating material 42 can be made into a flat shape (plane).
  • the heat insulating material 42 can be configured as a flat surface without denting the outer surface 42g. Therefore, the outer surface is covered with a low emissivity material 43 in the form of a shrink film and is shrunk by heat to the outer surface 42g of the heat insulating material 42. A low emissivity material 43 can be attached.
  • the casing 1 is provided with a diaphragm and a recess 1a that are convex on the inner side of the indoor unit A1. Thereby, the intensity
  • the motor 8 is fixed to the metal casing 1 through the heat insulating material 42. Further, since the motor 8 rotates the fan 9, it becomes a source of forced vibration during operation. Therefore, it is desirable to provide a second spacer 17 between the motor 8 and the housing 1 so as to absorb vibrations by elastic energy, damping, internal friction, and the like. Similar to the spacer 16, the second spacer 17 may be a rubber such as a rubber such as silicone rubber or an elastomer.
  • the temperature difference between the housing 1 and the inside of the heat insulating material 42 becomes large, and particularly the heat insulating performance is required after the air blown from the fan 9 passes through the heat exchanger 7 and exchanges heat.
  • This is the part where there is a temperature difference from the indoor air. Therefore, since the heat-exchanged air hardly passes between the fan 9 and the motor 8 and the housing 1, the heat insulation performance may be inferior as compared with the above-described portion requiring the heat insulation performance. Therefore, the space between the fan 9 and the motor 8 and the housing 1 is formed only by the heat insulating material 42 and the housing 1 as in the prior art, and the heat insulation can be ensured by providing a space in other portions. An inhibitory effect is obtained.
  • Embodiments >> 1.
  • casing 1 of Embodiment 1, 2, and 4 may be provided so that it may protrude outward
  • size is formed in the outer peripheral direction at the time of installation. Therefore, it is preferable to provide it so as to protrude inward.
  • casing 1 since there is no restriction
  • the spacer 16 described in the fourth embodiment is a flexible member on the outer side, can absorb the difference in deformation between the heat insulating material 42 and the housing 41, and has a multi-layer structure of a hard and lightweight member such as a resin on the inner side. May be used.
  • the case where a metal plate is used for the casings 1 and 31 has been described as an example.
  • the casing has performance such as a predetermined strength, engineering plastics and super engineering plastics are used.
  • it may be formed of a material other than metal, such as plastic with reinforcing fibers.
  • the present invention is not limited to the above-described embodiments, and includes various specific forms within the scope of the claims.
  • the above-described embodiment is a description of the present invention in an easy-to-understand manner, and is not necessarily limited to one having all the configurations described. For example, a part of the configuration described may be included.

Abstract

This air-conditioning device (A) is equipped with: a heat exchanger (7) for adjusting air temperature, a fan (9) for causing air to flow, and a motor (8) for causing the fan (8) to rotate, said components provided within a housing (1); an air suction port (14s) and air discharge ports (12a, 12b, 12c, and 12d); a first flow path connecting the suction port (14s) and the heat exchanger (7), and a second flow path connecting the heat exchanger (7) and the discharge ports (12a, 12b, 12c, and 12d); and a heat insulation material (2) provided between the housing (1) and the second flow path, in which air that has passed through the heat exchanger (7) flows, and which is connected to the discharge ports (12a, 12b, 12c, and 12d). Spaces (2s1, 2s2, 2t1, and 2t2) are provided between the housing (1) and the heat insulation material (2), and low-emissivity members (3) having a lower emissivity than the heat insulation material (2) are provided in the spaces (2s1, 2s2, 2t1, and 2t2).

Description

空気調和装置Air conditioner
　本発明は、空気調和装置に関する。 The present invention relates to an air conditioner.
　従来、空気調和装置の天井埋込型の室内機では、断熱と、装置内部と装置外部との温度差により装置の内外に結露が生じないことを目的に断熱材を用いている。
　図７に、従来の室内機の断面形状を示す。
　従来、空気調和装置１０Ａの室内機１０Ａ１は、筐体１０１と吸い込み口１１４ｓを有する吸い込みグリル１１４とで外郭が構成されている。 Conventionally, in a ceiling-embedded indoor unit of an air conditioner, a heat insulating material is used for the purpose of heat insulation and that condensation does not occur inside and outside the device due to a temperature difference between the inside of the device and the outside of the device.
FIG. 7 shows a cross-sectional shape of a conventional indoor unit.
Conventionally, in the indoor unit 10A1 of the air conditioner 10A, an outer shell is configured by the housing 101 and the suction grill 114 having the suction port 114s.
　室内機１０Ａ１は、モータ１０８の駆動によりファン１０９が吸い込み口１１４ｓから室内の空気を吸い込み、フィルタ１１５で塵埃を除去し、熱交換器１０７に送る(図７の矢印β１)。熱交換器１０７で熱交換され温度調整された空気は、化粧パネル１１２の吹き出し口１１２ｆから室内に吹き出される(図７の矢印β２)。吹き出し口１１２ｆからの空気はルーバー１１３で風向きが変えられる。熱交換器１０７の下方には、水受け１１１が設けられ、熱交換器１０７に付く露液を受けている。 In the indoor unit 10A1, the fan 109 sucks indoor air from the suction port 114s by driving the motor 108, removes dust with the filter 115, and sends it to the heat exchanger 107 (arrow β1 in FIG. 7). The air whose temperature is adjusted by heat exchange in the heat exchanger 107 is blown out into the room from the outlet 112f of the decorative panel 112 (arrow β2 in FIG. 7). The air direction of the air from the outlet 112 f is changed by the louver 113. A water receiver 111 is provided below the heat exchanger 107 and receives dew liquid attached to the heat exchanger 107.
　室内機１０Ａ１の筐体１０１内は、熱交換器１０７での熱交換後の空気の熱を逃がさないように断熱材１０２で覆われている。筐体１０１と断熱材１０２との間にギャップはない。
　筐体１０１の金属板と樹脂製の断熱材１０２の温度に対する伸縮量の度合いを示す線膨張係数は大きく異なる。例えば、樹脂は鉄の約７～１０倍の値であり、温度変化に対して約７～１０倍伸び縮みが大きい。 The inside of the housing 101 of the indoor unit 10A1 is covered with a heat insulating material 102 so that the heat of the air after heat exchange in the heat exchanger 107 is not released. There is no gap between the housing 101 and the heat insulating material 102.
The linear expansion coefficient indicating the degree of expansion / contraction with respect to the temperature of the metal plate of the housing 101 and the heat insulating material 102 made of resin is greatly different. For example, the resin has a value about 7 to 10 times that of iron, and is about 7 to 10 times larger than the temperature change.
　そのため、室内機１０Ａ１の内側と外側の温度差，さらには筐体１０１と断熱材１０２の線膨張係数の違いにより、筐体１０１に対して断熱材１０２が膨張または縮小する際に、筐体１０１と断熱材１０２の接する面ですべりが生じる。そのため、筐体１０１と断熱材１０２とがこすれたような音が発生する場合がある。 Therefore, when the heat insulating material 102 expands or contracts with respect to the housing 101 due to the temperature difference between the inside and outside of the indoor unit 10A1 and the difference in linear expansion coefficient between the housing 101 and the heat insulating material 102, the housing 101 Slip occurs on the surface where the heat insulating material 102 contacts. Therefore, there may be a sound that the casing 101 and the heat insulating material 102 are rubbed.
　例えば、冬季の暖房時などに、内側の断熱材１０２が膨張して筐体１０１とこすれることで、こすれ音が発生することがある。こすれ音は夜間などの周囲が静かな状態では、時に使用者に不快感を与えることとなりかねず、可能な限り音の発生がないことが望ましい。 For example, a rubbing sound may be generated when the inner heat insulating material 102 expands and rubs against the housing 101 during heating in winter. The rubbing sound may be uncomfortable for the user when the surroundings are quiet, such as at night, and it is desirable that the sound be generated as little as possible.
　この音の抑制のために、筐体１０１と断熱材１０２の間に空間を設ける方法がある。しかしながら、空間は断熱材よりも断熱性能が劣る場合があり、空間を設けることで断熱性能を低下させてしまうことがある。 In order to suppress this sound, there is a method of providing a space between the casing 101 and the heat insulating material 102. However, the space may have insulative performance inferior to that of the heat insulating material, and providing the space may reduce the heat insulating performance.
　一方、温度調整された空気が流れる室内機１０Ａ１と、外気に影響されやすい天井内部の空気と接する室内機１０Ａ１の外側とでは、空気の温度が異なる。
　このため、省エネ性を高める、つまり熱ロスを抑制するには、室内機１０Ａ１の内側を流れる冷風が外側の熱により温められることや、逆に内側の温風の熱が外側に放熱されることを防ぐ必要がある。そこで、十分な断熱性能を得るには断熱材１０２を厚くすることが考えられる。 On the other hand, the temperature of the air is different between the indoor unit 10A1 through which the temperature-adjusted air flows and the outside of the indoor unit 10A1 that is in contact with the air inside the ceiling that is easily affected by the outside air.
For this reason, in order to improve energy saving, that is, to suppress heat loss, the cool air flowing inside the indoor unit 10A1 is heated by the outside heat, or conversely, the heat of the inside warm air is radiated to the outside. Need to prevent. Therefore, it is conceivable to increase the thickness of the heat insulating material 102 in order to obtain sufficient heat insulating performance.
　そこで、従来、断熱材１０２を厚くすることで、断熱性能を高めている。特に、天井埋め込み型の室内機１０Ａ１は、標準的な天井の設計規格に準じるため、その大きさが限られている。
　従って、断熱材１０２を厚くした場合、装置の重量が増加したり、その分、室内機１０Ａ１の内側の断熱材の体積が増加することで空気の流路を狭めなければならなくなる。流路の狭小化は、通風抵抗の増加につながり、モータ負荷の上昇や熱ロスの増加から省エネ性の低下につながるという課題がある。 Therefore, conventionally, the heat insulating performance is increased by increasing the thickness of the heat insulating material 102. In particular, the ceiling-embedded indoor unit 10A1 is limited in size because it conforms to a standard ceiling design standard.
Therefore, when the heat insulating material 102 is thickened, the weight of the apparatus increases, and accordingly, the volume of the heat insulating material inside the indoor unit 10A1 increases, so that the air flow path must be narrowed. The narrowing of the flow path leads to an increase in ventilation resistance, and there is a problem that energy saving is reduced due to an increase in motor load and an increase in heat loss.
　そこで、特許文献１では、側板を樹脂成型品とするとともに二重構造とし、側板内に空気層が存在する構造を提案している。 Therefore, Patent Document 1 proposes a structure in which the side plate is a resin molded product and has a double structure, and an air layer exists in the side plate.
特開２０１１‐１８５５８４号公報(図１、図３等)JP 2011-185584 A (FIG. 1, FIG. 3, etc.)
　ところで、筐体１０１の金属板と断熱材１０２の線膨張係数は、上述の通り、一般に断熱材１０２の方が大きい。そのため、上述のこすれ音の抑制のためには断熱材１０２の膨張の影響をなくすことを目的に、筐体１０１と断熱材１０２との間に空間を設けることが望ましい。 Incidentally, as described above, the heat insulating material 102 generally has a larger linear expansion coefficient between the metal plate of the housing 101 and the heat insulating material 102. Therefore, in order to suppress the above-mentioned rubbing sound, it is desirable to provide a space between the housing 101 and the heat insulating material 102 in order to eliminate the influence of expansion of the heat insulating material 102.
　特許文献１には、目的は異なるものの２重構造によって外側の壁と内側の壁の間に空隙を設けた構造が記載されている。空間を設けることは、壁間に空気の層を設けることとなる。一般に、空気の熱伝導率は発泡スチロールなどの断熱材に比べて熱伝導率が若干低く、空気は熱伝導しにくい。このため、熱伝導のみを考慮すれば空気層を設ける方が断熱性能は高い。しかし、空気層が厚すぎると対流による伝熱が発生する一方、空気層が薄くとも放射(輻射)による伝熱が発生するため、総合的に見ると必ずしも断熱性がよいとは言えない。 Patent Document 1 describes a structure in which a gap is provided between an outer wall and an inner wall by a double structure although the purpose is different. Providing a space provides an air layer between the walls. In general, the thermal conductivity of air is slightly lower than that of a heat insulating material such as styrene foam, and air is less likely to conduct heat. For this reason, if only heat conduction is considered, the heat insulation performance is higher when the air layer is provided. However, if the air layer is too thick, heat transfer due to convection occurs. On the other hand, heat transfer due to radiation (radiation) occurs even if the air layer is thin.
　一方、断熱材１０２を厚くすると筐体１０１内部の空間が狭くなる。空間が狭くなった結果、例えば吹き出し口１１２ｆの風路が狭くなると、通風抵抗が増加し風量の低下、またはファン１０９の動力の増加につながるおそれがある。そのため、空気調和装置の能力や省エネ性を損なうことになる。 On the other hand, when the heat insulating material 102 is thickened, the space inside the housing 101 is narrowed. As a result of the narrowing of the space, for example, if the air path of the air outlet 112f becomes narrow, there is a possibility that the ventilation resistance increases and the air volume decreases or the power of the fan 109 increases. Therefore, the capability and energy saving performance of the air conditioner are impaired.
　本発明は上記実状に鑑み創案されたものであり、音の発生を抑制でき、断熱性が高い空気調和装置の提供を目的とする。 The present invention has been devised in view of the above circumstances, and an object thereof is to provide an air conditioner that can suppress the generation of sound and has high heat insulation.
　前記課題を解決するため、本発明の請求項１の空気調和装置は、筐体内部に設けられ、空気の温度を調整する熱交換器および前記空気を流動させるファンおよび前記ファンを回転させるモータと、前記空気の吸い込み口と前記空気の吹き出し口と、前記吸い込み口と前記熱交換器をつなぐ第１の流路および前記熱交換器と前記吹き出し口をつなぐ第２の流路と、前記筐体と、前記熱交換器を通過した空気が流れ前記吹き出し口がつながる前記第２の流路との間に設けられる断熱材とを備え、前記筐体と前記断熱材との間に空間が設けられ、当該空間に前記断熱材よりも低放射率の低放射率部材が設けられている。 In order to solve the above problems, an air conditioner according to claim 1 of the present invention is provided inside a housing, and includes a heat exchanger that adjusts the temperature of air, a fan that causes the air to flow, and a motor that rotates the fan. The air inlet, the air outlet, the first channel connecting the inlet and the heat exchanger, the second channel connecting the heat exchanger and the outlet, and the housing. And a heat insulating material provided between the second flow path to which the air that has passed through the heat exchanger flows and to which the blowout port is connected, and a space is provided between the housing and the heat insulating material. In the space, a low emissivity member having a lower emissivity than that of the heat insulating material is provided.
　本発明によれば、音の発生を抑制でき、断熱性が高い空気調和装置を実現できる。 According to the present invention, it is possible to suppress the generation of sound and realize an air conditioner with high heat insulation.
本発明の実施形態１に係る空気調和機の室内機を据え付けた状態を示す斜視図。The perspective view which shows the state which installed the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. 図１のＩ－Ｉ断面図。II sectional drawing of FIG. 水受け、熱交換器などを上方から見た上面図。The top view which looked at the water receiver, the heat exchanger, etc. from the upper part. 実施形態２に係る空気調和装置の室内機の図１のＩ－Ｉ断面相当図。FIG. 10 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 2. 実施形態３に係る空気調和装置の室内機の図１のＩ－Ｉ断面相当図。FIG. 11 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 3. 実施形態３に係る空気調和装置の室内機の図１のＩ－Ｉ断面相当図。FIG. 10 is a cross-sectional view corresponding to the II cross section of FIG. 従来の室内機の断面形状を示す断面図。Sectional drawing which shows the cross-sectional shape of the conventional indoor unit.
　以下、本発明の実施形態について、適宜図面を参照しながら詳細に説明する。
　本発明は以下の実施形態に限定されることなく、本発明の技術的な概念の中で種々の変形例や応用例をもその範囲に含むものである。
　本発明は、空気調和装置における室内機の断熱材とこれに付随する周辺構造に係る発明である。
　本発明の特徴は、室内機の筐体と筐体の内側の断熱材との間に空間を設けて音の発生を抑制し、かつ断熱性能を向上させる構造にある。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
The present invention is not limited to the following embodiments, and includes various modifications and application examples within the scope of the technical concept of the present invention.
This invention is the invention which concerns on the heat insulating material of the indoor unit in an air conditioning apparatus, and the surrounding structure accompanying this.
The feature of the present invention resides in a structure in which a space is provided between the casing of the indoor unit and the heat insulating material inside the casing to suppress the generation of sound and improve the heat insulating performance.
＜＜実施形態１＞＞
　図１は、本発明の実施形態１に係る空気調和装置の室内機を据え付けた状態を示す斜視図である。図２は、図１のＩ－Ｉ断面図である。図１、図２の矢印α１、α２は、空気の流れ(流路)を示す。
　実施形態１の空気調和装置Ａは、吹き出し口１２ａ、１２ｂ、１２ｃ、１２ｄから下方向(矢印α２方向)に冷風、温風などを吹き出す天井埋込型の室内機Ａ１をもつ装置である。 << Embodiment 1 >>
FIG. 1 is a perspective view showing a state in which an indoor unit of an air-conditioning apparatus according to Embodiment 1 of the present invention is installed. 2 is a cross-sectional view taken along the line II of FIG. Arrows α1 and α2 in FIGS. 1 and 2 indicate air flows (flow paths).
The air conditioner A of Embodiment 1 is an apparatus having a ceiling-embedded indoor unit A1 that blows out cool air, warm air, and the like downward from the air outlets 12a, 12b, 12c, and 12d (in the direction of the arrow α2).
＜室内機Ａ１＞
　空気調和装置Ａの室内機Ａ１は、本体ｈと化粧パネル１２とを有して構成される。
　化粧パネル１２より下が室内であり、上が天井内部となる。化粧パネル１２は、天井面ｔ１(図２参照)とほぼ面一となるように、本体ｈの下方に取り付けられる。
　本体ｈは天井裏(天井面ｔ１より上)に吊金具ｋ１と吊ボルトｂ１を用いて据え付けられ固定される。化粧パネル１２は、本体ｈ側にネジ（図示せず）などを使用して固定される。 <Indoor unit A1>
The indoor unit A1 of the air conditioner A includes a main body h and a decorative panel 12.
Below the decorative panel 12 is the room and above is the interior of the ceiling. The decorative panel 12 is attached below the main body h so as to be substantially flush with the ceiling surface t1 (see FIG. 2).
The main body h is installed and fixed on the back of the ceiling (above the ceiling surface t1) using the suspension fitting k1 and the suspension bolt b1. The decorative panel 12 is fixed to the main body h using screws (not shown) or the like.
　本体ｈは、図２に示すように、筐体１と断熱材２とを備えている。
　筐体１は、金属板を用いて、下方に開口をもつ角柱の有底箱状に形成されている。筐体１は、２枚以上の板金がプレスで所定形状に成形され、ネジ止め、リベットなどで固定され形成される。
　本体ｈには、断熱や結露防止、防音などのため断熱材２の発泡スチロールが、筐体１の内部に開口を下に向けて配置されている。 As shown in FIG. 2, the main body h includes a housing 1 and a heat insulating material 2.
The housing | casing 1 is formed in the bottomed box shape of the prism which has an opening below using the metal plate. The housing 1 is formed by forming two or more sheet metals into a predetermined shape with a press and fixing them with screws, rivets or the like.
In the main body h, the foamed polystyrene of the heat insulating material 2 is disposed in the inside of the housing 1 with the opening facing downward for heat insulation, prevention of dew condensation, soundproofing and the like.
　また、吊金具ｋ１は筐体１の側部に取り付けられている。本体ｈ内には、熱交換器７とファン９とが収容されている。ファン９は例えば遠心ファンであり、空気の流れの向きを略９０度変えて熱交換器７に送る。ファン９の吹き出した先には熱交換器７があり、熱交換器７は、水受け１１と断熱材２により上下を挟まれている。水受け１１は、熱交換器７の表面に結露して滴下するドレン水を受け回収する。水受け１１は、例えば発泡スチロール成形品などである。
　熱交換器７は、冷媒が流れる配管を介して不図示の室外機と接続されている。 Further, the hanging metal fitting k1 is attached to the side portion of the housing 1. A heat exchanger 7 and a fan 9 are accommodated in the main body h. The fan 9 is a centrifugal fan, for example, and sends the heat flow to the heat exchanger 7 while changing the direction of air flow by approximately 90 degrees. There is a heat exchanger 7 at the tip of the fan 9 blown out, and the heat exchanger 7 is sandwiched between the water receiver 11 and the heat insulating material 2. The water receiver 11 receives and collects drain water that is condensed and dripped onto the surface of the heat exchanger 7. The water receiver 11 is, for example, a foamed polystyrene molded product.
The heat exchanger 7 is connected to an outdoor unit (not shown) through a pipe through which the refrigerant flows.
　図３は、水受け、熱交換器などを上方から見た上面図である。
　熱交換器７は、室内機Ａ１の平面形状に沿うように折り曲げられた形状に形成されている。
　水受け１１は、熱交換器７の形状に沿った溝形状(下方に向けての凹形状)の水路１１ａが形成されている。溝形状の水路１１ａは、熱交換器７から滴下される水滴を充分に受けられるように、上面視で熱交換器７より大きな形状を有している。 FIG. 3 is a top view of a water receiver, a heat exchanger, and the like viewed from above.
The heat exchanger 7 is formed in a shape that is bent along the planar shape of the indoor unit A1.
The water receiver 11 is formed with a water channel 11 a having a groove shape (concave shape downward) along the shape of the heat exchanger 7. The groove-shaped water channel 11a has a shape larger than that of the heat exchanger 7 when viewed from above so that water drops dripped from the heat exchanger 7 can be sufficiently received.
　熱交換器７からの水滴を受ける水路１１ａは、壁板１１ｂにより囲われて水路１１ａ中の液体(露液)が外部に漏出しないように構成されている。水路７ａに溜まる液体は、不図示のポンプによって汲み上げられ、ドレンパイプを介して排出される。 The water channel 11a that receives water droplets from the heat exchanger 7 is surrounded by the wall plate 11b so that the liquid (dew liquid) in the water channel 11a does not leak to the outside. The liquid collected in the water channel 7a is pumped up by a pump (not shown) and discharged through a drain pipe.
　熱交換器７はファン９の吹き出し面９ａ(図２参照)を覆うように配置され、ファン９から吹き出した風は、ほぼすべて熱交換器７を通過する構造である。この際、熱交換器７を通過する空気は急に冷却または加熱される。そのため、露点温度以下になった空気中に含まれる水分が熱交換器７の表面に露付きする。 The heat exchanger 7 is disposed so as to cover the blowout surface 9a (see FIG. 2) of the fan 9, and the air blown out from the fan 9 has a structure that almost passes through the heat exchanger 7. At this time, the air passing through the heat exchanger 7 is suddenly cooled or heated. Therefore, moisture contained in the air that has become the dew point temperature or less is exposed to the surface of the heat exchanger 7.
　また、吸い込み口１４ｓをもつ吸い込みグリル１４は化粧パネル１２のほぼ中央に取り付けられている。吸い込みグリル１４のまわりに、化粧パネル１２が吹き出し口１２ａ、１２ｂ、１２ｃ、１２ｄを有している。 Further, the suction grille 14 having the suction port 14s is attached to almost the center of the decorative panel 12. Around the suction grill 14, the decorative panel 12 has outlets 12a, 12b, 12c, and 12d.
　本体ｈ内に収容されているファン９が、モータ８の駆動力により回転することで室内の空気を取り込む (図２の矢印α１)。取り込れた空気は、熱交換器７を通過して冷媒と熱交換され温度が調整される。温度調整された空気は、ファン９の働きで吹き出し口１２ａ、１２ｂ、１２ｃ、１２ｄから室内に吐出される(図２の矢印α２)。 The fan 9 housed in the main body h is rotated by the driving force of the motor 8 to take in indoor air (arrow α1 in FIG. 2). The taken-in air passes through the heat exchanger 7 to exchange heat with the refrigerant, and the temperature is adjusted. The temperature-adjusted air is discharged into the room from the outlets 12a, 12b, 12c, 12d by the action of the fan 9 (arrow α2 in FIG. 2).
　詳細には、室内の空気はグリル１４の吸い込み口１４ｓから取り込まれ、埃などを除去するためのフィルタ１５を通過する。フィルタ１５を通過した空気は、ベルマウス１０によりファン９の中心側に入るように整流され、モータ８により回転するファン９の中心側に流れ込む。 Specifically, the indoor air is taken in from the inlet 14s of the grill 14 and passes through the filter 15 for removing dust and the like. The air that has passed through the filter 15 is rectified so as to enter the center side of the fan 9 by the bell mouth 10, and flows into the center side of the fan 9 that is rotated by the motor 8.
　ベルマウス１０は吸い込んだ空気をファン９へスムーズに案内し、送風音を低減し、送風性能の向上を図っている。ベルマウス１０と水受け１１は、本体ｈにねじ(図示せず)などで固定される。
　こうして、室内の空気は、ファン９の下部中央から吸い込まれ、ファン９の半径方向（図２の左右方向）の熱交換器７に向けて吹き出される。 The bell mouth 10 smoothly guides the sucked air to the fan 9 to reduce blowing sound and improve blowing performance. The bell mouth 10 and the water receiver 11 are fixed to the main body h with screws (not shown).
Thus, the indoor air is sucked from the lower center of the fan 9 and blown out toward the heat exchanger 7 in the radial direction of the fan 9 (left-right direction in FIG. 2).
　熱交換器７を通過して温度調整された空気は、水受け１１と断熱材２により形成される流路を通り、吹き出し口１２ａ、１２ｂ、１２ｃ、１２ｄから室内側へ流れる(図２の矢印α２)。
　吹き出し口１２ａ、１２ｂ、１２ｃ、１２ｄを有する化粧パネル１２には、ルーバー１３が設けられている。ルーバー１３を動かすことで、室内での空気の噴出し方向を調整可能としている。化粧パネル１２は、筐体１にねじ(図示せず)などで固定される。 The air whose temperature is adjusted by passing through the heat exchanger 7 passes through the flow path formed by the water receiver 11 and the heat insulating material 2 and flows indoors from the outlets 12a, 12b, 12c and 12d (arrows in FIG. 2). α2).
The decorative panel 12 having the outlets 12a, 12b, 12c, and 12d is provided with a louver 13. By moving the louver 13, it is possible to adjust the air ejection direction in the room. The decorative panel 12 is fixed to the housing 1 with screws (not shown) or the like.
＜断熱材２と筐体１＞
　断熱材２の周囲には、金属製の筐体１が設けられている。筐体１は、天井内部(図２の天井面ｔ１より上)の空気と接している。
　外気温に近い天井内部の空気と熱交換器７を通過して温度調整された空気とでは、温度差がある。
　夏場の冷房時であれば天井内部の空気の温度は夏場の外気の影響を受け、例えば、３０℃という高い温度となっている。これに対し、熱交換器７を通過した空気は、例えば２０℃という低い温度になっている。 <Insulation 2 and housing 1>
A metal housing 1 is provided around the heat insulating material 2. The housing 1 is in contact with the air inside the ceiling (above the ceiling surface t1 in FIG. 2).
There is a temperature difference between the air inside the ceiling close to the outside air temperature and the air whose temperature is adjusted by passing through the heat exchanger 7.
During cooling in the summer, the temperature of the air inside the ceiling is affected by the outside air in the summer, and is as high as 30 ° C., for example. On the other hand, the air that has passed through the heat exchanger 7 has a temperature as low as 20 ° C., for example.
　ここで、熱交換器７を通過した空気は、図２の矢印α２のように、断熱材２にぶつかって、化粧パネル１２の吹き出し口１２ａ、１２ｂ、１２ｃ、１２ｄ側へ流れる。そのため、断熱材２の熱交換器７側の面は熱交換器７を通過した空気と常に熱交換することとなり、ほぼ熱交換器７通過後の空気温度と近い温度となっている。一方、筐体１の側部外面は、常に天井内の空気と接しており、天井内の空気の温度と近い温度となっている。 Here, the air that has passed through the heat exchanger 7 collides with the heat insulating material 2 and flows toward the outlets 12a, 12b, 12c, and 12d of the decorative panel 12 as indicated by an arrow α2 in FIG. Therefore, the surface of the heat insulating material 2 on the side of the heat exchanger 7 always exchanges heat with the air that has passed through the heat exchanger 7, and the temperature is substantially close to the air temperature after passing through the heat exchanger 7. On the other hand, the side outer surface of the housing 1 is always in contact with the air in the ceiling, and is close to the temperature of the air in the ceiling.
　この場合、断熱材２の熱交換器７側の面から筐体１の側部外面までの間の断熱性能が低いと、筐体１さらに断熱材２を通して天井の暖かい空気の熱が断熱材２の熱交換器７側の面まで伝達される。つまり、断熱性能が低い場合、断熱材２の熱交換器７側の面と、筐体１の側部外面との温度差が小さくなる。 In this case, if the heat insulation performance between the surface of the heat insulating material 2 on the heat exchanger 7 side and the outer surface of the side portion of the housing 1 is low, the heat of the warm air on the ceiling passes through the housing 1 and the heat insulating material 2. To the surface on the heat exchanger 7 side. That is, when the heat insulating performance is low, the temperature difference between the surface of the heat insulating material 2 on the heat exchanger 7 side and the side outer surface of the housing 1 becomes small.
　これは、断熱材２の熱交換器７側の面が、より筐体１の外側の温度と近い温度となり、熱交換器７通過後の空気温度よりも高い温度、つまり外気温に近い温度となることを意味する。
　これにより、断熱材２の熱交換器７側の面は、熱交換器７を通過させ温度低下させた空気を加熱することとなる。これは、エネルギロスとなり、空気調和装置Ａの冷房性能の低下につながる。つまり、空気調和装置Ａの省エネ性を低下させる。 This is because the surface of the heat insulating material 2 on the side of the heat exchanger 7 is closer to the temperature outside the housing 1, and is higher than the air temperature after passing through the heat exchanger 7, that is, the temperature close to the outside air temperature. It means to become.
Thereby, the surface at the side of the heat exchanger 7 of the heat insulating material 2 heats the air that has passed through the heat exchanger 7 and whose temperature has been lowered. This results in energy loss and leads to a decrease in the cooling performance of the air conditioner A. That is, the energy saving performance of the air conditioner A is reduced.
　一方、筐体１の温度は、熱交換器７の冷却効果により低下するため、天井内部の温度と湿度によっては、露点温度以下になった場合、筐体１の外面に結露が生じる。結露は、天井面ｔ１からの室内への水垂れの原因ともなりかねず望ましくない。 On the other hand, since the temperature of the housing 1 is lowered due to the cooling effect of the heat exchanger 7, depending on the temperature and humidity inside the ceiling, dew condensation occurs on the outer surface of the housing 1 when the temperature is lower than the dew point temperature. Condensation is undesirable because it may cause water dripping from the ceiling surface t1 into the room.
　冬季の暖房時においても、天井内部(図２の天井面ｔ１より上)の空気温度は外気の影響により、室内より低い温度となっている。しかし、断熱材２の熱交換器７側の面と接する空気は、暖房であるので当然ながら暖かくなっている。この場合、断熱材２の断熱性能が低い、つまり熱抵抗が小さいと熱交換器７で暖められた空気の熱の一部が天井内部の空気へ放熱することとなり、エネルギロスとなる。つまり、空気調和装置Ａの省エネ性を低下させる。 Even during heating in winter, the air temperature inside the ceiling (above the ceiling surface t1 in FIG. 2) is lower than the room due to the influence of outside air. However, the air in contact with the surface of the heat insulating material 2 on the side of the heat exchanger 7 is naturally warm because it is heating. In this case, if the heat insulation performance of the heat insulating material 2 is low, that is, if the heat resistance is small, part of the heat of the air warmed by the heat exchanger 7 is radiated to the air inside the ceiling, resulting in energy loss. That is, the energy saving performance of the air conditioner A is reduced.
＜空気層(２ｓ１、２ｓ２、２ｔ１、２ｔ２)と低放射率材３＞
　そこで、空気の熱伝導率が、一般に断熱材よりも小さく、熱伝導による断熱性は非常に高いことから、断熱材２の上部および側部の筐体１と対向する側を階段状に凹ませ、筐体１と断熱材２との間に空気層を設けることとした。つまり、空気層として、断熱材２の側部の第１の空気層２ｓ１および第２の空気層２ｓ２と、断熱材２の上部の第１の空気層２ｔ１および第２の空気層２ｔ２とが形成される。側部の第１・第２の空気層２ｓ１、２ｓ２と上部の第１・第２の空気層２ｔ１、２ｔ２は、それぞれ本体ｈの側面部と上面部とに延在して(図２の紙面奥行き方向、上下方向、左右方向に)形成されている。 <Air layer (2s1, 2s2, 2t1, 2t2) and low emissivity material 3>
Therefore, since the thermal conductivity of air is generally smaller than that of a heat insulating material and the heat insulating property by heat conduction is very high, the upper side of the heat insulating material 2 and the side facing the housing 1 are recessed in a stepped shape. The air layer is provided between the housing 1 and the heat insulating material 2. That is, as the air layer, the first air layer 2s1 and the second air layer 2s2 on the side of the heat insulating material 2 and the first air layer 2t1 and the second air layer 2t2 on the heat insulating material 2 are formed. Is done. The first and second air layers 2s1 and 2s2 on the side and the first and second air layers 2t1 and 2t2 on the upper side extend to the side surface and the upper surface of the main body h, respectively (see FIG. 2). (Depth direction, up-down direction, left-right direction).
　しかし、空気は赤外線を通過させるため、放射による熱の移動も考慮すると、断熱性が高いといえない。これに対し、発泡材などの断熱材は、内部に多数の空間(気泡)を有するため、みかけの熱伝導率は空気に近い値まで低いものとなっている。その上、多数の母材の層が赤外線を吸収し、放射による熱伝達を抑制する。 However, since air allows infrared rays to pass therethrough, heat transfer due to radiation is also taken into account, so it cannot be said that the heat insulation is high. On the other hand, since a heat insulating material such as a foam material has a large number of spaces (bubbles) inside, the apparent thermal conductivity is low to a value close to air. In addition, a number of matrix layers absorb infrared radiation and suppress heat transfer by radiation.
　また、空気は対流によって熱伝達するため、空気層が厚い場合には対流が発生し、対流による熱伝達が発生する。このため、空気層を設けることは，かえって断熱性を低下させることにつながる場合がある。 Also, since air transfers heat by convection, convection occurs when the air layer is thick, and heat transfer occurs by convection. For this reason, providing an air layer may lead to a decrease in heat insulation.
　そこで，本実施形態１では、階段状(段付き形状)に凹ませた断熱材２の空間を２分割するように、換言すれば側部の第１・第２の空気層２ｓ１、２ｓ２との間および上部の第１・第２の空気層２ｔ１、２ｔ２との間に、低放射率材３を設けている。低放射率材３を断熱材２に形成した空間(２ｓ１、２ｓ２、２ｔ１、２ｔ２)に設けることで、空間における放射による熱伝達を抑制している。 Therefore, in the first embodiment, the space of the heat insulating material 2 recessed in a stepped shape (stepped shape) is divided into two, in other words, the first and second air layers 2s1 and 2s2 on the side portions. A low emissivity material 3 is provided between and between the first and second air layers 2t1, 2t2. By providing the low emissivity material 3 in the space (2s1, 2s2, 2t1, 2t2) formed in the heat insulating material 2, heat transfer due to radiation in the space is suppressed.
　低放射率材３は、放射率の低い材料である。放射率が低い材料とは、電磁波を反射させる反射率が高い材料でもある。低放射率材３は、温度の高い面から発せられ空気層を透過した赤外線(電磁波)を反射し、赤外線による熱伝達を抑制する。
　このため、低放射率材３に厚さは必要なく、フィルム状の材料でよい。低放射率の材料としては、例えば表面が鏡状の金属面などがある。具体的には、アルミニウム製のフィルムなどが挙げられる。アルミニウムは加工し易く、錆びないので好ましい。なお、錆びると放射率は低下する。 The low emissivity material 3 is a material having a low emissivity. A material with low emissivity is also a material with high reflectivity that reflects electromagnetic waves. The low emissivity material 3 reflects infrared rays (electromagnetic waves) emitted from a surface having a high temperature and transmitted through the air layer, and suppresses heat transfer by the infrared rays.
For this reason, the low emissivity material 3 does not need a thickness, and may be a film-like material. Examples of the low emissivity material include a mirror-like metal surface. Specific examples include aluminum films. Aluminum is preferable because it is easy to process and does not rust. In addition, when it rusts, an emissivity will fall.
　低放射率材３の放射率は０．４以下であり、特に０．１以下が望ましい。放射率が０．４以下であれば、一般の金属を使用して、空間(空気層２ｓ１、２ｓ２、２ｔ１、２ｔ２)を通過する熱の放射を妨げることができる。 The emissivity of the low emissivity material 3 is 0.4 or less, and particularly preferably 0.1 or less. If the emissivity is 0.4 or less, general metal can be used to prevent radiation of heat passing through the space (air layers 2s1, 2s2, 2t1, 2t2).
　このように、筐体１と断熱材２との間の空間の略中間(略真中)に低放射率材３を設けることで、筐体１と低放射率材３との間の側部の第１の空気層２ｓ１および上部の第１の空気層２ｔ１と、低放射率材３と断熱材２との間の側部の第２の空気層２ｓ２および上部の第２の空気層２ｔ２とが、形成される。これにより、各空気層(２ｓ１、２ｓ２、２ｔ１、２ｔ２)を薄くすることができる。
　従って、空気の対流の発生を抑制でき、断熱性能の向上を図れる。 As described above, by providing the low emissivity material 3 in substantially the middle (substantially middle) of the space between the housing 1 and the heat insulating material 2, the side portion between the housing 1 and the low emissivity material 3 is provided. The first air layer 2s1 and the upper first air layer 2t1, the side second air layer 2s2 between the low emissivity material 3 and the heat insulating material 2, and the upper second air layer 2t2 ,It is formed. Thereby, each air layer (2s1, 2s2, 2t1, 2t2) can be made thin.
Therefore, generation | occurrence | production of the convection of air can be suppressed and the heat insulation performance can be improved.
　各空気層(２ｓ１、２ｓ２、２ｔ１、２ｔ２)の厚さは、０．５～３ｍｍが好ましい。厚さが０．５ｍｍ未満であると熱伝導性が劣るおそれがあり、厚さが３ｍｍを超えると対流の発生が懸念される。なお、各空気層(２ｓ１、２ｓ２、２ｔ１、２ｔ２)の厚さは、１ｍｍ以上かつ２ｍｍ以下が最も望ましい。１ｍｍ以上かつ２ｍｍ以下にすることで、空気の熱伝導性を低下させることなく、空気の対流の発生を抑制することができる。
　また、断熱材２の側部には、筐体１と接する面２ａ１と、凹み部の底面２ａ２との略中間(略真中)に位置する平面２ａ３を有するように、凹み(空気層)を階段状に設けている。 The thickness of each air layer (2s1, 2s2, 2t1, 2t2) is preferably 0.5 to 3 mm. If the thickness is less than 0.5 mm, the thermal conductivity may be inferior. If the thickness exceeds 3 mm, convection may occur. The thickness of each air layer (2s1, 2s2, 2t1, 2t2) is most preferably 1 mm or more and 2 mm or less. By setting it to 1 mm or more and 2 mm or less, generation | occurrence | production of the convection of air can be suppressed, without reducing the thermal conductivity of air.
Further, the side of the heat insulating material 2 has a dent (air layer) in a staircase so as to have a flat surface 2a3 located substantially in the middle (substantially middle) between the surface 2a1 in contact with the housing 1 and the bottom surface 2a2 of the dent. It is provided in the shape.
　同様に、断熱材２の上部には、筐体１と接する面２ｂ１と、凹み部の底面２ｂ２との略中間(略真中)に位置する平面２ｂ３を有するように、凹み(空気層)を階段状に設けている。
　このように、断熱材２の側部および上部を階段状に形成することで、筐体１と断熱材２との間に所定厚の凹み(空気層)(２ｓ１、２ｓ２、２ｔ１、２ｔ２)を設けることができる。 Similarly, the dent (air layer) is stepped on the upper portion of the heat insulating material 2 so as to have a plane 2b3 located substantially in the middle (substantially middle) between the surface 2b1 in contact with the housing 1 and the bottom surface 2b2 of the dent. It is provided in the shape.
Thus, by forming the side part and the upper part of the heat insulating material 2 in a stepped manner, a recess (air layer) (2s1, 2s2, 2t1, 2t2) having a predetermined thickness is formed between the housing 1 and the heat insulating material 2. Can be provided.
　そして、低放射率材３は、断熱材２の側部の平面２ａ３を形成するように、低放射率材３自身に形成される粘着層、両面テープなどで、断熱材２に貼り付けられる。
　このように、断熱材２の側部において、略中間に位置する平面２ａ３に低放射率材３を貼ることで、凹ませた断熱材２と筐体１の間の空間を、容易に第１の空気層２ｓ１と第２の空気層２ｓ２とに２分割する構造を形成できる。 And the low emissivity material 3 is affixed on the heat insulating material 2 with the adhesion layer, double-sided tape, etc. which are formed in the low emissivity material 3 itself so that the plane 2a3 of the side part of the heat insulating material 2 may be formed.
Thus, in the side part of the heat insulating material 2, the space between the recessed heat insulating material 2 and the housing | casing 1 is easily 1st by sticking the low emissivity material 3 to the plane 2a3 located in the substantially middle. A structure in which the air layer 2s1 and the second air layer 2s2 are divided into two can be formed.
　同様に、断熱材２の上部において、略中間(略真中)に位置する平面２ｂ３に低放射率材３を貼ることで、凹ませた断熱材２と筐体１の間の空間を、容易に第１の空気層２ｔ１と第２の空気層２ｔ２とに２分割する構造を形成することができる。そのため、２層の空気層を設ける際の生産性が向上する。 Similarly, in the upper part of the heat insulating material 2, the space between the recessed heat insulating material 2 and the housing | casing 1 is easily made by sticking the low emissivity material 3 on the plane 2b3 located substantially in the middle (substantially middle). A structure in which the first air layer 2t1 and the second air layer 2t2 are divided into two can be formed. Therefore, productivity when providing two layers of air is improved.
　上述したように、本空気調和装置Ａの構造では、筐体１と断熱材２の間に空間(２ｓ１、２ｓ２、２ｔ１、２ｔ２)を設けることで、音の発生を抑制できる。また、低放射率材３を、側部の第１の空間層２ｓ１と第２の空間層２ｓ２との間、および、上部の第１の空間層２ｔ１と第２の空間層２ｔ２との間に配置することで断熱性能も向上させている。 As described above, in the structure of the air conditioning apparatus A, the generation of sound can be suppressed by providing spaces (2s1, 2s2, 2t1, 2t2) between the housing 1 and the heat insulating material 2. Further, the low emissivity material 3 is placed between the first space layer 2s1 and the second space layer 2s2 on the side, and between the first space layer 2t1 and the second space layer 2t2 on the upper side. The heat insulation performance is also improved by arranging.
　前記したように、一般に、発泡材の断熱材２よりも空気のほうが熱伝導率は低い場合が多い。このため、本空気調和装置Ａによる放射による伝熱と、対流による伝熱(熱伝達)を抑制できる構成の場合、断熱性能を従来の空気調和装置よりも向上できる。 As described above, in general, the thermal conductivity of air is often lower than that of the foam insulating material 2. For this reason, in the structure which can suppress the heat transfer by the radiation | emission by this air conditioning apparatus A and the heat transfer (heat transfer) by a convection, heat insulation performance can be improved rather than the conventional air conditioning apparatus.
＜筐体１の強度＞
　従来の図７のように、断熱材１０２と筐体１０１とが接している場合、筐体１０１に強度がなくとも断熱材１０２により形状を維持することが可能である。しかしながら、図２に示すように、空間(２ｓ１、２ｓ２、２ｔ１、２ｔ２)を設けた場合、筐体１の空間と対向する部分(箇所)が支持するものがないため、容易に凹むことが考えられる。このような凹みやすい面は振動の腹となり振動しやすいため、騒音の発生源になることが考えられる。 <Strength of casing 1>
When the heat insulating material 102 and the housing 101 are in contact with each other as shown in FIG. 7 of the related art, the shape can be maintained by the heat insulating material 102 even if the housing 101 is not strong. However, as shown in FIG. 2, when a space (2s1, 2s2, 2t1, 2t2) is provided, there is nothing to be supported by a portion (location) facing the space of the housing 1, so that it can be easily recessed. It is done. Such a dent-prone surface becomes a vibration antinode and easily vibrates, so that it may be a source of noise.
　そこで、本実施形態１では、筐体１の空間(第１・第２の空気層２ｓ１、２ｓ２)と面する部分に、室内機Ａ１の内側に凸となるような絞り、凹み部１ａを設けている。これにより、室内機Ａ１の外側の寸法を変えることなく(室内機Ａ１の外側に突出すことなく)、筐体１の強度を向上できる。
　そのため、断熱材２に空間(第１・第２の空気層２ｓ１、２ｓ２)を設けた場所でも筐体１が凹むことが抑制される。 Therefore, in the first embodiment, a constriction and a dent 1a that are convex toward the inner side of the indoor unit A1 are provided in a portion facing the space (first and second air layers 2s1, 2s2) of the housing 1. ing. Thereby, the intensity | strength of the housing | casing 1 can be improved, without changing the dimension of the outer side of indoor unit A1 (without protruding outside the indoor unit A1).
Therefore, it is possible to prevent the housing 1 from being recessed even in a place where the heat insulating material 2 is provided with spaces (first and second air layers 2s1, 2s2).
　さらに、筐体１の強度向上により、筐体１の板厚を薄くすることも可能となる。よって、材料コストの低減や、熱伝導し易い筐体１の板厚を薄くすることで断熱性能の向上を図れる。
　なお、筐体１の凹み部１ａは、図２に示す水平方向および鉛直方向(図２の紙面上下方向)に延びるように形成することが好ましい。これにより、筐体１が水平方向の曲げのみならず、鉛直方向の曲げにも剛性が高まる。 Furthermore, the thickness of the housing 1 can be reduced by improving the strength of the housing 1. Therefore, the heat insulation performance can be improved by reducing the material cost and reducing the thickness of the housing 1 that is easily thermally conductive.
In addition, it is preferable to form the recessed part 1a of the housing | casing 1 so that it may extend in the horizontal direction and vertical direction (paper surface up-down direction of FIG. 2) shown in FIG. Thereby, the rigidity of the casing 1 is increased not only in the horizontal direction but also in the vertical direction.
　一方、断熱材２の凹み部の側部の第１・第２の空気層２ｓ１、２ｓ２および上部の第１・第２の空気層２ｔ１、２ｔ２は、熱交換器７の上方（天井側）と側方のみに設けている。これは、断熱材２全体の剛性を強くするために、極力凹み部を減らすためである。また、モータ８直上付近は、熱交換器７を通過した空気が流れ込む場所ではないため、断熱性もそれほど求められない。さらに、モータの振動音を抑制するために、音波が伝播する空隙がないほうが望ましい。 On the other hand, the first and second air layers 2s1 and 2s2 on the side of the recessed portion of the heat insulating material 2 and the first and second air layers 2t1 and 2t2 on the upper side are located above the heat exchanger 7 (ceiling side). It is provided only on the side. This is to reduce the number of dents as much as possible in order to increase the rigidity of the heat insulating material 2 as a whole. In addition, since the area directly above the motor 8 is not a place where the air that has passed through the heat exchanger 7 flows, thermal insulation is not so required. Furthermore, in order to suppress the vibration noise of the motor, it is desirable that there is no gap through which sound waves propagate.
　加えて、天井側の角部は、室内機Ａ１内部の空気流路からの距離がとりやすいため，断熱材を厚くでき、断熱性を高くし易い。したがって、モータ８直上、および、断熱材２の天井側角部を除いた熱交換器７の上方側（天井側）と側方側のみに凹み部を設けることが最適な形状のひとつである。 In addition, since the corner on the ceiling side is easy to take a distance from the air flow path inside the indoor unit A1, the heat insulating material can be thickened and the heat insulating property can be easily increased. Therefore, it is one of the optimal shapes to provide the recesses directly above the motor 8 and only on the upper side (ceiling side) and the side of the heat exchanger 7 excluding the corners on the ceiling side of the heat insulating material 2.
　以上、本空気調和装置Ａでは、室内機Ａ１の側部の第１・第２の空気層２ｓ１、２ｓ２および上部の第１・第２の空気層２ｔ１、２ｔ２を設けることで、内外の空気の温度差と筐体１と断熱材２の線膨張係数差に伴う音の発生を抑制できる。加えて、筐体１と断熱材２の間に空間を設けながら空間内に低放射率材３を設けるので、熱伝導と熱放射を抑えられ断熱性能が向上する。 As described above, in the present air conditioner A, by providing the first and second air layers 2s1, 2s2 on the side of the indoor unit A1 and the first and second air layers 2t1, 2t2 on the upper side, The generation of sound due to the temperature difference and the difference in linear expansion coefficient between the housing 1 and the heat insulating material 2 can be suppressed. In addition, since the low emissivity material 3 is provided in the space while providing a space between the housing 1 and the heat insulating material 2, heat conduction and heat radiation can be suppressed and heat insulating performance can be improved.
　そのため、室内機Ａ１内外の空気の温度差により結露を生じない断熱性能を維持できる。また、断熱性能が向上することで、熱ロスを抑制して省エネ性を確保でき、断熱材２の厚さを薄くすることが可能になる。
　さらに、筐体１の凹み部１ａにより、筐体１の強度が向上し、薄肉化が図れ、コスト低減に貢献できる。 Therefore, it is possible to maintain heat insulation performance that does not cause condensation due to a temperature difference between the air inside and outside the indoor unit A1. Moreover, by improving heat insulation performance, heat loss can be suppressed, energy saving can be ensured, and the thickness of the heat insulating material 2 can be reduced.
Furthermore, the recessed portion 1a of the housing 1 improves the strength of the housing 1, can be reduced in thickness, and can contribute to cost reduction.
　まとめると、筐体１と、その内側の断熱材２との間に空間(２ｓ１、２ｓ２、２ｔ１、２ｔ２)を設け、その筐体１と断熱材２との間の空間の略中間(略真ん中)に低放射率材３を設ける。
　これにより、低放射率材３が放射による熱の移動を抑制し、また空間を分割することで、空気の対流による熱の移動も抑制される。そのため、断熱性能が向上する。また、空間を設けることで断熱材２の膨張による音の発生が抑制され、かつ断熱材２を厚くせずに断熱性能の高い室内機Ａ１を有する空気調和装置Ａを提供できる。 In summary, a space (2s1, 2s2, 2t1, 2t2) is provided between the housing 1 and the heat insulating material 2 on the inside, and the space between the housing 1 and the heat insulating material 2 is substantially in the middle (substantially the middle). ) Is provided with a low emissivity material 3.
Thereby, the low emissivity material 3 suppresses the movement of heat due to radiation, and by dividing the space, the movement of heat due to air convection is also suppressed. Therefore, the heat insulation performance is improved. In addition, by providing the space, it is possible to provide the air conditioner A having the indoor unit A1 that suppresses the generation of sound due to the expansion of the heat insulating material 2 and has high heat insulating performance without increasing the thickness of the heat insulating material 2.
＜＜実施形態２＞＞
　図４は、実施形態２に係る空気調和装置の室内機の図１のＩ－Ｉ断面相当図である。
　実施形態２の空気調和調和装置２Ａの室内機２Ａ１は、低放射率材２３を断熱材２２の側面部と上面部に形成した凹部の底面２２ｓ１、２２ｔ１に貼り付けたものである。
　低放射率材２３は、実施形態１の低放射率材３と同様な低放射率材が用いられる。
　それ以外の構成は、実施形態１と同様であるから、同様な構成要素には同一の符号を付して示し、詳細な説明は省略する。 << Embodiment 2 >>
4 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 2. FIG.
The indoor unit 2A1 of the air conditioner 2A of Embodiment 2 is obtained by attaching the low emissivity material 23 to the bottom surfaces 22s1 and 22t1 of the recesses formed on the side surface and the top surface of the heat insulating material 22.
As the low emissivity material 23, a low emissivity material similar to the low emissivity material 3 of the first embodiment is used.
Since the other configuration is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.
　実施形態２の室内機２Ａ１では、側面部における熱交換器７および熱交換器７で熱交換された後の空気の流路に対向する断熱材２２の側面部の外側の位置に、凹形状の空間２２ｓを形成している。空間２２ｓ、２２ｔの厚さは、それぞれ実施形態１と同様、０．５～３ｍｍが望ましく、１ｍｍ以上かつ２ｍｍ以下が最も望ましい。 In the indoor unit 2A1 of the second embodiment, a concave shape is formed at a position on the outer side of the heat exchanger 7 in the side surface and the side surface portion of the heat insulating material 22 facing the air flow path after being heat-exchanged by the heat exchanger 7. A space 22s is formed. The thicknesses of the spaces 22s and 22t are each preferably 0.5 to 3 mm as in the first embodiment, and most preferably 1 mm or more and 2 mm or less.
　また、室内機２Ａ１の上面部における熱交換器７およびファン９の翼に対向する断熱材２の外側　の位置に凹形状の空間２２ｔを形成している。側部、上部の凹形状の空間２２ｓ、２２ｔが対向する断熱材２２の内方には、熱交換器７で熱交換され、室内の空気とは温度差がある冷却または加熱された空気が流れる。 Further, a concave space 22t is formed at a position outside the heat insulating material 2 facing the blades of the heat exchanger 7 and the fan 9 on the upper surface of the indoor unit 2A1. Inside the heat insulating material 22 facing the concave spaces 22s and 22t on the side and upper sides, heat is exchanged by the heat exchanger 7, and cooled or heated air having a temperature difference from the indoor air flows. .
　一方、断熱材２２の側面部の凹形状の空間２２ｓの底面２２ｓ１に低放射率材２３が、自身に形成される粘着層、両面テープなどで貼り付けられる。同様に、断熱材２２の上面部の凹形状の空間２２ｔの底面２２ｔ１に低放射率材２３が、自身に形成される粘着層、両面テープなどで貼り付けられる。 Meanwhile, the low emissivity material 23 is attached to the bottom surface 22s1 of the concave space 22s on the side surface portion of the heat insulating material 22 with an adhesive layer formed on itself, a double-sided tape, or the like. Similarly, the low emissivity material 23 is affixed to the bottom surface 22t1 of the concave space 22t on the top surface of the heat insulating material 22 with an adhesive layer formed on itself, a double-sided tape, or the like.
　実施形態２の構成によれば、室内機２Ａ１の組み立ての際に、断熱材２の側部の空間２２ｓの底面２２ｓ１および上部の空間２２ｔの底面２２ｔ１に低放射率材２３を貼り付けてから、筐体１へ組み込めばよい。そのため、空気調和調和装置２Ａの組み立て性が良好となる。
　また、低放射率材２３に非常に薄い厚さの素材を用いても、断熱材２２の凹み部の空間２２ｓ、２２ｔの各底面２２ｓ１、２２ｔ１に貼り付けているため、組み立て時に破れるおそれが少ない。 According to the configuration of the second embodiment, when the indoor unit 2A1 is assembled, the low emissivity material 23 is pasted on the bottom surface 22s1 of the side space 22s of the heat insulating material 2 and the bottom surface 22t1 of the upper space 22t. What is necessary is just to incorporate in the housing | casing 1. Therefore, the assemblability of the air conditioner 2A becomes good.
Further, even if a material with a very thin thickness is used for the low emissivity material 23, the material is attached to the bottom surfaces 22s1 and 22t1 of the recessed portions 22s and 22t of the heat insulating material 22, so that there is little risk of tearing during assembly. .
　筐体１は金属で作られる場合が多い。金属は放射率が一般に低い。一方、断熱材２は樹脂であるので、放射率が金属に比べて高い。
　そこで、低放射率材２３を、放射率が比較的高い断熱材２２の側に貼り付ける構成をとることで、放射率が高い断熱材２２の表面の放射による伝熱を抑制することができる。そのため、低放射率材２３の断熱材２２表面への貼り付けにより、断熱性を単に空気層を設けることに比べて放射を抑制する分、向上することができる。 The housing 1 is often made of metal. Metals generally have a low emissivity. On the other hand, since the heat insulating material 2 is resin, the emissivity is higher than that of metal.
Therefore, by adopting a configuration in which the low emissivity material 23 is attached to the heat insulating material 22 having a relatively high emissivity, heat transfer due to radiation on the surface of the heat insulating material 22 having a high emissivity can be suppressed. Therefore, by sticking the low emissivity material 23 to the surface of the heat insulating material 22, the heat insulating property can be improved by suppressing radiation compared to simply providing an air layer.
　逆に、筐体１の断熱材２２と対向する側に低放射率材２３を貼り付けた場合、元々、筐体１表面の放射率が低いことから、その効果は小さなものになる。
　加えて、筐体１の熱がそのまま低放射率材２３に伝導してしまい。伝導した熱が放射により断熱材２２に伝達されてしまう。これに対して、低放射率材２３を断熱材２２表面に貼り付けることにより、筐体１と低放射率材２３との間に空間を介在できるので、筐体１から低放射率材３への熱伝導を抑えることができる。 Conversely, when the low emissivity material 23 is attached to the side of the housing 1 facing the heat insulating material 22, the effect is small because the emissivity of the surface of the housing 1 is originally low.
In addition, the heat of the housing 1 is directly conducted to the low emissivity material 23. The conducted heat is transmitted to the heat insulating material 22 by radiation. On the other hand, since the space can be interposed between the housing 1 and the low emissivity material 23 by pasting the low emissivity material 23 on the surface of the heat insulating material 22, the housing 1 is moved to the low emissivity material 3. Heat conduction can be suppressed.
　以上のことから、断熱材２の０．５～３ｍｍ厚の凹み部の空間２２ｓ、２２ｔの各底面２２ｓ１、２２ｔ１に低放射率材２３を設けることにより、筐体１と断熱材２２間の対流、放射、伝導による伝熱を極力抑えることができる。
　そのため、断熱性が高い室内機２Ａ１をもつ空気調和調和装置２Ａが得られる。よって、空気調和調和装置２Ａの省エネ化が図れ、消費電力の削減が図れる。 From the above, the convection between the casing 1 and the heat insulating material 22 is achieved by providing the low emissivity material 23 on the bottom surfaces 22s1 and 22t1 of the recessed portions 22s and 22t having a thickness of 0.5 to 3 mm of the heat insulating material 2. Heat transfer due to radiation and conduction can be suppressed as much as possible.
Therefore, the air conditioning apparatus 2A having the indoor unit 2A1 with high heat insulation is obtained. Therefore, energy saving of the air conditioner 2A can be achieved, and power consumption can be reduced.
　また、筐体１と断熱材２２との間に空間２２ｓ、２２ｔが介在するので、筐体１と断熱材２２とが擦れることにより発生する音を抑制することができる。結果として、性能が高い空気調和装置２Ａを実現できる。 Further, since the spaces 22s and 22t are interposed between the housing 1 and the heat insulating material 22, it is possible to suppress sound generated by rubbing the housing 1 and the heat insulating material 22. As a result, the air conditioner 2A having high performance can be realized.
　なお、断熱材２２の凹み部の空間２２ｓ、２２ｔの各底面２２ｓ１、２２ｔ１に低放射率材２３を設ける方法としては、フィルム状の低放射率材２３を貼り付けるだけでなく、例えば低放射率材料２３を断熱材２２の凹み部の空間２２ｓ、２２ｔの各底面２２ｓ１、２２ｔ１に蒸着させたり、低放射率２３の材料を含む塗料などを塗布する方法を採用してもよい。 In addition, as a method of providing the low emissivity material 23 on the bottom surfaces 22s1 and 22t1 of the recesses 22s and 22t of the heat insulating material 22, not only the film-like low emissivity material 23 is pasted but also a low emissivity, for example. A method may be employed in which the material 23 is vapor-deposited on the bottom surfaces 22s1 and 22t1 of the recesses 22s and 22t of the heat insulating material 22 or a paint containing a material having a low emissivity 23 is applied.
＜＜実施形態３＞＞
　図５は、実施形態３に係る空気調和装置の室内機の図１のＩ－Ｉ断面相当図である。
　実施形態３の空気調和調和装置３Ａの室内機３Ａ１は、断熱材３２の外面側にくぼみを設けることなく、筐体３１の内側に凸形状の凸部３１ｔを設けて断熱材２と当接させることで空間を設けている。そして、断熱材３２の筐体３１に対向する外面に、低放射率材３３を貼り付けている。
　なお、低放射率材３３は、実施形態１の低放射率材３と同様な性質の低放射率材が用いられる。 << Embodiment 3 >>
FIG. 5 is a cross-sectional view taken along the line II of FIG. 1 of the indoor unit of the air-conditioning apparatus according to Embodiment 3.
The indoor unit 3A1 of the air-conditioning harmony device 3A of Embodiment 3 is provided with a convex protrusion 31t on the inner side of the housing 31 without being indented on the outer surface side of the heat insulating material 32, and is brought into contact with the heat insulating material 2. A space is provided. And the low emissivity material 33 is affixed on the outer surface facing the housing | casing 31 of the heat insulating material 32. FIG.
The low emissivity material 33 is a low emissivity material having the same properties as the low emissivity material 3 of the first embodiment.
　それ以外の構成は、実施形態１と同様であるから、同様な構成要素には同一の符号を付して示し、詳細な説明は省略する。 Other configurations are the same as those in the first embodiment, and thus similar components are denoted by the same reference numerals and detailed description thereof is omitted.
　筐体３１の側部および上部の凸部３１ｔは絞り成形で形成される。筐体３１の凸部３１ｔ　は、図５に示す水平方向のみならず、鉛直方向にも形成することにより、水平方向および鉛直方向の曲げに対して剛性をもつ。そのため、凸部３１は、水平方向および鉛直方向に形成することが望ましい。　
　上述の構造を採用することで断熱材３２の外側を凹ます必要がなく、平坦な面とすることができる。 The side part of the housing | casing 31 and the convex part 31t of an upper part are formed by drawing. The convex portion 31t of the housing 31 is rigid not only in the horizontal direction shown in FIG. 5 but also in the vertical direction, thereby having rigidity against bending in the horizontal direction and the vertical direction. Therefore, it is desirable to form the convex portion 31 in the horizontal direction and the vertical direction.
By adopting the above-described structure, it is not necessary to dent the outside of the heat insulating material 32, and a flat surface can be obtained.
　この構成により、図５に示すように、断熱材３２は、外面３２ｇを凹ますことなく平面で構成できるので、外側をシュリンクフィルム状の低放射率材３３で覆い、熱により収縮させて断熱材３２の外面３２ｇに低放射率材３３を貼りつけることができる。従って、断熱材３２に低放射率材３３を貼り付ける手間が大きく軽減される。同時に、凸部３１ｔを設けることで筐体１の強度を高めることができる。 With this configuration, as shown in FIG. 5, the heat insulating material 32 can be configured as a flat surface without denting the outer surface 32g, so the outside is covered with a low emissivity material 33 in the form of a shrink film and is shrunk by heat to insulate the heat insulating material. The low emissivity material 33 can be attached to the outer surface 32g of 32. Therefore, the trouble of attaching the low emissivity material 33 to the heat insulating material 32 is greatly reduced. At the same time, the strength of the housing 1 can be increased by providing the convex portion 31t.
　本室内機３Ａ１では、熱抵抗を高く維持するため、筐体１の絞り部の凸部３１ｔは、断熱材３２と点接触または線接触するようにしている。
　これにより、筐体３１の凸部３１ｔと断熱材３２の外表面との接触面積を極力小さくし、伝熱面積を小さくしている。そのため、筐体３１と断熱材３２との熱伝導による熱の移動を抑制することが可能である。 In this indoor unit 3A1, in order to maintain high thermal resistance, the convex portion 31t of the throttle portion of the housing 1 is in point contact or line contact with the heat insulating material 32.
Thereby, the contact area of the convex part 31t of the housing | casing 31 and the outer surface of the heat insulating material 32 is made as small as possible, and the heat-transfer area is made small. Therefore, it is possible to suppress heat transfer due to heat conduction between the casing 31 and the heat insulating material 32.
　ここで、筐体３１の凸部３１ｔは水平方向または鉛直方向の少なくとも何れかの方向に設けてもよいし、凸部３１ｔを水平方向または鉛直方向に傾けて設けてもよい。
　筐体３１の凸部３１ｔは、側部および上部に少なくとも２方向に沿って設けることが好ましい。これにより、該２方向に沿った折り曲げに対する剛性を高めることができる。凸部３１ｔを交差して設ける場合、交差する角度は略垂直でもよいし、略垂直以外でもよい。 Here, the convex portion 31t of the housing 31 may be provided in at least one of the horizontal direction and the vertical direction, or the convex portion 31t may be provided inclined to the horizontal direction or the vertical direction.
The convex portion 31t of the housing 31 is preferably provided along at least two directions on the side portion and the upper portion. Thereby, the rigidity with respect to bending along these two directions can be improved. When the convex portions 31t are provided so as to intersect with each other, the intersecting angle may be approximately vertical or may be other than approximately vertical.
　なお、凸部３１ｔを格子状など略垂直に設ける場合、全体的に強度を向上させることができるので最も望ましい。この場合、筐体３１の凸部３１ｔを、モータ８から放射状に延びる方向およびこれにほぼ垂直に交差する方向に形成する。或いは、凸部３１ｔを、モータ８から放射状に延びる方向に対して、プラス・マイナス略４５度傾斜して交差する方向に設けてもよい。 In addition, when providing the convex part 31t substantially perpendicular | vertical, such as a grid | lattice form, since an intensity | strength can be improved as a whole, it is the most desirable. In this case, the convex portion 31t of the housing 31 is formed in a direction extending radially from the motor 8 and in a direction intersecting substantially perpendicularly thereto. Or you may provide the convex part 31t in the direction which inclines plus and minus about 45 degree | times with respect to the direction extended radially from the motor 8, and cross | intersects.
　なお、図５では、低放射率材３３を断熱材３２の筐体３１に対向する外面３２ｇ全体に貼り付けた場合を示しているが、モータ８付近など、必ずしも断熱性が必要でない箇所は適宜低放射率材３３を貼り付けない構成としてもよい。 5 shows a case where the low emissivity material 33 is attached to the entire outer surface 32g of the heat insulating material 32 facing the casing 31, but a portion such as the vicinity of the motor 8 that does not necessarily require heat insulation is appropriately used. It is good also as a structure which does not affix the low emissivity material 33. FIG.
　＜＜実施形態４＞＞
　図６は、実施形態３に係る空気調和装置の室内機の図１のＩ－Ｉ断面相当図である。
　実施形態４の空気調和調和装置４Ａの室内機４Ａ１は、筐体１と断熱材４２の間にスペーサ１６を配置することで空間を設けている。そして、断熱材４２におけるモータ８付近を除く筐体１に対向する外面に低放射率材４３を貼り付けたものである。
　この構成により、筐体１と断熱材４２との接する部分をなくすことができる。 << Embodiment 4 >>
6 is a cross-sectional view corresponding to the II cross section of the indoor unit of the air-conditioning apparatus according to Embodiment 3. FIG.
The indoor unit 4A1 of the air conditioner 4A of Embodiment 4 provides a space by disposing the spacer 16 between the housing 1 and the heat insulating material 42. And the low emissivity material 43 is affixed on the outer surface facing the housing | casing 1 except the motor 8 vicinity in the heat insulating material 42. FIG.
With this configuration, it is possible to eliminate a contact portion between the housing 1 and the heat insulating material 42.
　なお、低放射率材４３は、実施形態１の低放射率材３と同様な性質の低放射率材が用いられる。
　上記以外の構成は、実施形態１と同様であるから、同様な構成要素には同一の符号を付して示し、詳細な説明は省略する。 The low emissivity material 43 is a low emissivity material having the same properties as the low emissivity material 3 of the first embodiment.
Since the configuration other than the above is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.
　スペーサ１６は、スポンジなどのやわらかい、柔軟な材料とする。スペーサ１６は、温度変化による断熱材４２と筐体１との変形量の差を吸収できるように容易に変形する素材であり、かつ空間を保てる程度の強度を有している。温度変化による断熱材４２と筐体１との変形量の差を吸収するためには、例えば断熱材４２や筐体１よりも弾性率が低い材料であればよい。また、スペーサ１６は、スポンジのような多孔質材料でもよいし、エラストマのようなゴム状のものでもよい。 The spacer 16 is made of a soft and flexible material such as sponge. The spacer 16 is a material that is easily deformed so as to absorb a difference in deformation amount between the heat insulating material 42 and the housing 1 due to a temperature change, and has a strength enough to maintain a space. In order to absorb the difference in deformation amount between the heat insulating material 42 and the housing 1 due to temperature change, for example, a material having a lower elastic modulus than the heat insulating material 42 or the housing 1 may be used. The spacer 16 may be a porous material such as a sponge, or may be a rubber-like material such as an elastomer.
　断熱材４２が膨張や縮小する場合、スペーサ１６は断熱材４２の変形に追随でき、音の発生を抑制できる。また、断熱材４２の筐体１に対向する外表面を平坦形状(平面)にできる。
　断熱材４２は、実施形態３と同様、外面４２ｇを凹ますことなく平面で構成できるので、外側をシュリンクフィルム状の低放射率材４３で覆い、熱により収縮させて断熱材４２の外面４２ｇに低放射率材４３を貼りつけることができる。 When the heat insulating material 42 expands or contracts, the spacer 16 can follow the deformation of the heat insulating material 42 and suppress the generation of sound. Moreover, the outer surface facing the housing | casing 1 of the heat insulating material 42 can be made into a flat shape (plane).
As in the third embodiment, the heat insulating material 42 can be configured as a flat surface without denting the outer surface 42g. Therefore, the outer surface is covered with a low emissivity material 43 in the form of a shrink film and is shrunk by heat to the outer surface 42g of the heat insulating material 42. A low emissivity material 43 can be attached.
　そのため、低放射率材４３の貼り付けの手間を軽減でき、生産性の向上を図れる。
　筐体１には、実施形態１と同様、室内機Ａ１の内側に凸となるような絞り、凹み部１ａを設けている。これにより、室内機Ａ１の外側の寸法を変えることなく(室内機Ａ１の外側に突出すことなく)、の強度を向上できる。 Therefore, it is possible to reduce the time and effort required for attaching the low emissivity material 43, and to improve productivity.
As in the first embodiment, the casing 1 is provided with a diaphragm and a recess 1a that are convex on the inner side of the indoor unit A1. Thereby, the intensity | strength can be improved, without changing the dimension of the outer side of indoor unit A1 (without protruding outside the indoor unit A1).
　モータ８は、断熱材４２を貫通して金属の筐体１に固定されている。また、モータ８はファン９を回転駆動させるため、動作時には強制振動の加振源となる。そこで、モータ８と筐体１との間には、振動を弾性エネルギ、減衰、内部摩擦などで吸収するような第２のスペーサ１７を設けることが望ましい。第２のスペーサ１７は、スペーサ１６と同様、シリコーンゴムなどのゴムやエラストマのようなゴム状のものでもよい。 The motor 8 is fixed to the metal casing 1 through the heat insulating material 42. Further, since the motor 8 rotates the fan 9, it becomes a source of forced vibration during operation. Therefore, it is desirable to provide a second spacer 17 between the motor 8 and the housing 1 so as to absorb vibrations by elastic energy, damping, internal friction, and the like. Similar to the spacer 16, the second spacer 17 may be a rubber such as a rubber such as silicone rubber or an elastomer.
　ところで、筐体１と断熱材４２の内側とで温度差が大きくなり、特に断熱性能が必要となるのは、ファン９より吹き出された風が熱交換器７を通過して熱交換した後の室内の空気との温度差がある部分である。したがって、ファン９およびモータ８と筐体１との間は熱交換した空気はほぼ通らないので、上述の断熱性能が必要な部分に比べれば、断熱性能が劣ってもよい。そのため、ファン９およびモータ８と筐体１との間は、従来と同様に断熱材４２と筐体１のみで形成し、それ以外の部分に空間を設けることでも断熱性が確保でき、音の抑制効果が得られる。 By the way, the temperature difference between the housing 1 and the inside of the heat insulating material 42 becomes large, and particularly the heat insulating performance is required after the air blown from the fan 9 passes through the heat exchanger 7 and exchanges heat. This is the part where there is a temperature difference from the indoor air. Therefore, since the heat-exchanged air hardly passes between the fan 9 and the motor 8 and the housing 1, the heat insulation performance may be inferior as compared with the above-described portion requiring the heat insulation performance. Therefore, the space between the fan 9 and the motor 8 and the housing 1 is formed only by the heat insulating material 42 and the housing 1 as in the prior art, and the heat insulation can be ensured by providing a space in other portions. An inhibitory effect is obtained.
　＜＜その他の実施形態＞＞
１．なお、実施形態１、２、４の筐体１の凹み凸部１ａは、外方に突出すように設けてもよいが、外周方向は、据え付け時に所定の大きさの矩形の穴が形成されていることから、内方に突出すように設けることが好ましい。なお、筐体１の上方は、特に制約はないので、補強のため、凸部を内方または外方に突出すように設ける構成としてもよい。 << Other Embodiments >>
1. In addition, although the recessed convex part 1a of the housing | casing 1 of Embodiment 1, 2, and 4 may be provided so that it may protrude outward, the rectangular hole of a predetermined magnitude | size is formed in the outer peripheral direction at the time of installation. Therefore, it is preferable to provide it so as to protrude inward. In addition, since there is no restriction | limiting in particular above the housing | casing 1, it is good also as a structure provided so that a convex part may protrude inward or outward for reinforcement.
２．実施形態４で説明したスペーサ１６は、外側が柔軟な部材で、断熱材４２と筐体４１との変形量の差を吸収でき、内側は樹脂などの硬質で軽量な部材の複数層構造のものを用いてもよい。 2. The spacer 16 described in the fourth embodiment is a flexible member on the outer side, can absorb the difference in deformation between the heat insulating material 42 and the housing 41, and has a multi-layer structure of a hard and lightweight member such as a resin on the inner side. May be used.
３．前記実施形態１～４では、筐体１、３１に金属板を用いた場合を例に挙げて説明したが、所定の強度など、筐体としての性能を有すれば、エンジニアリングプラスチック、スーパーエンジニアリングプラスチック、強化繊維入りプラスチックなど、金属以外の材料で形成してもよい。 3. In the first to fourth embodiments, the case where a metal plate is used for the casings 1 and 31 has been described as an example. However, as long as the casing has performance such as a predetermined strength, engineering plastics and super engineering plastics are used. Alternatively, it may be formed of a material other than metal, such as plastic with reinforcing fibers.
４．前記実施形態１～４では、様々な構成を説明したが、実施形態１～４の各構成を適宜選択して組み合わせて構成してもよい。 4). Although various configurations have been described in the first to fourth embodiments, the configurations of the first to fourth embodiments may be appropriately selected and combined.
　なお、本発明は前記した実施形態に限定されるものでなく、特許請求の範囲内で様々な具体的形態が含まれる。例えば、上記した実施形態は本発明を分り易く説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。例えば、説明した構成の一部を含むものであってもよい。 Note that the present invention is not limited to the above-described embodiments, and includes various specific forms within the scope of the claims. For example, the above-described embodiment is a description of the present invention in an easy-to-understand manner, and is not necessarily limited to one having all the configurations described. For example, a part of the configuration described may be included.
　１、２１、３１、４１　筐体
　２、２２、３２、４２　断熱材
　２ａ１　筐体１と接する面(第１の突出部)
　２ｓ１、２ｔ１　第１の空気層(空間)
　２ｓ２、２ｔ２　第２の空気層(空間)
　３、２３、３３、４３　低放射率材
　１２ａ、１２ｂ、１２ｃ、１２ｄ　吹き出し口
　１２ｓ１、１２ｔ１　底面(筺体と対向する面)
　１４ｓ　吸い込み口
　１６　　スペーサ(スペーサ部材)
　３１ｔ　凸部(第２の突出部)
　α１　　第１の流路
　α２　　第２の流路
　Ａ、２Ａ、３Ａ、４Ａ　空気調和装置 1, 21, 31, 41 Housing 2, 22, 32, 42 Heat insulating material 2a1 Surface in contact with housing 1 (first projecting portion)
2s1,2t1 First air layer (space)
2s2, 2t2 Second air layer (space)
3, 23, 33, 43 Low emissivity material 12a, 12b, 12c, 12d Outlet 12s1, 12t1 Bottom surface (surface facing the housing)
14s Suction port 16 Spacer (Spacer member)
31t Convex part (second protrusion)
α1 First flow path α2 Second flow path A, 2A, 3A, 4A Air conditioner

Claims (10)

  1. 　筐体内部に設けられ、空気の温度を調整する熱交換器および前記空気を流動させるファンおよび前記ファンを回転させるモータと、
    　前記空気の吸い込み口と前記空気の吹き出し口と、
    　前記吸い込み口と前記熱交換器をつなぐ第１の流路および前記熱交換器と前記吹き出し口をつなぐ第２の流路と、
    　前記筐体と、前記熱交換器を通過した空気が流れ前記吹き出し口がつながる前記第２の流路との間に設けられる断熱材とを備え、
    　前記筐体と前記断熱材との間に空間が設けられ、当該空間に前記断熱材よりも低放射率の低放射率部材が設けられる
    　ことを特徴とする空気調和装置。     A heat exchanger that is provided inside the housing and adjusts the temperature of the air, a fan that flows the air, and a motor that rotates the fan;
    The air inlet and the air outlet;
    A first flow path connecting the suction port and the heat exchanger, and a second flow path connecting the heat exchanger and the outlet;
    A heat insulating material provided between the housing and the second flow path through which the air that has passed through the heat exchanger flows and to which the blowing port is connected;
    A space is provided between the housing and the heat insulating material, and a low emissivity member having a lower emissivity than the heat insulating material is provided in the space.
  2. 　請求項１に記載の空気調和装置において、
    　前記低放射率部材は、前記断熱材の外表面であって前記筐体と対向する面に設けられる
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    The low emissivity member is provided on the outer surface of the heat insulating material and facing the housing. The air conditioner.
  3. 　請求項１に記載の空気調和装置において、
    　前記低放射率部材は、前記筐体と前記断熱材との間の前記空間の略真中に設けられる
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    The low emissivity member is provided substantially in the middle of the space between the casing and the heat insulating material.
  4. 　請求項１に記載の空気調和装置において、
    　前記断熱材は、外方へ向かって突出して前記筐体と接することで前記空間を形成する第１の突出部を有する
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    The said heat insulating material has a 1st protrusion part which protrudes toward outward and forms the said space by contacting the said housing | casing. The air conditioning apparatus characterized by the above-mentioned.
  5. 　請求項１に記載の空気調和装置において、
    　前記筐体は、前記断熱材に向かって突出して断熱材と接することで前記空間を形成する第２の突出部を有する
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    The said housing | casing has a 2nd protrusion part which protrudes toward the said heat insulating material and forms the said space by contacting a heat insulating material. The air conditioning apparatus characterized by the above-mentioned.
  6. 　請求項１に記載の空気調和装置において、
    　前記筐体は、前記断熱材に向かって突出して断熱材と接することで前記空間を形成する第２の突出部を有し、
    　前記第２の突出部は、交差する２方向に沿って形成される
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    The housing has a second protrusion that protrudes toward the heat insulating material and forms the space by contacting the heat insulating material,
    The second projecting portion is formed along two intersecting directions.
  7. 　請求項１に記載の空気調和装置において、
    　前記筐体および前記断熱材よりも低い弾性率の材料で形成され、前記筐体と前記断熱材との間に前記空間を設けるスペーサ部材を備える
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    An air conditioner comprising: a spacer member that is formed of a material having a lower elastic modulus than the casing and the heat insulating material, and that provides the space between the casing and the heat insulating material.
  8. 　請求項１に記載の空気調和装置において、
    　前記筐体および前記断熱材よりも低い弾性率の材料で形成され、前記筐体と前記断熱材との間に空間を設けるスペーサ部材を備え、
    　前記低放射率部材は、前記筐体の外表面に収縮して貼り付けられる
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    A spacer member that is formed of a material having a lower elastic modulus than the housing and the heat insulating material, and that provides a space between the housing and the heat insulating material,
    The air conditioner characterized in that the low emissivity member is contracted and attached to the outer surface of the casing.
  9. 　請求項１に記載の空気調和装置において、
    　前記空間は、０．５ｍｍ以上３ｍｍ以下の厚さを有する
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    The space has a thickness of not less than 0.5 mm and not more than 3 mm.
  10. 　請求項１に記載の空気調和装置において、
    　前記低放射率部材は、０．４以下の放射率を有する
    　ことを特徴とする空気調和装置。     In the air conditioning apparatus according to claim 1,
    The low emissivity member has an emissivity of 0.4 or less.
PCT/JP2014/082843 2014-12-11 2014-12-11 Air-conditioning device WO2016092669A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023062904A1 (en) * 2021-10-14 2023-04-20 株式会社富士通ゼネラル Air conditioner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001091039A (en) * 1993-04-09 2001-04-06 Daikin Ind Ltd Air conditioner
JP2004317022A (en) * 2003-04-16 2004-11-11 Nbc Inc Thermally shielding cover for air conditioner outdoor machine
JP2009109049A (en) * 2007-10-29 2009-05-21 Panasonic Corp Air conditioner
JP2011208826A (en) * 2010-03-29 2011-10-20 Daikin Industries Ltd Air conditioning indoor unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001091039A (en) * 1993-04-09 2001-04-06 Daikin Ind Ltd Air conditioner
JP2004317022A (en) * 2003-04-16 2004-11-11 Nbc Inc Thermally shielding cover for air conditioner outdoor machine
JP2009109049A (en) * 2007-10-29 2009-05-21 Panasonic Corp Air conditioner
JP2011208826A (en) * 2010-03-29 2011-10-20 Daikin Industries Ltd Air conditioning indoor unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023062904A1 (en) * 2021-10-14 2023-04-20 株式会社富士通ゼネラル Air conditioner

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