WO2016092669A1 - Dispositif de conditionnement d'air - Google Patents

Dispositif de conditionnement d'air 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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WIPO (PCT)
Prior art keywords
heat insulating
insulating material
air
housing
heat
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PCT/JP2014/082843
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English (en)
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/fr
Publication of WO2016092669A1 publication Critical patent/WO2016092669A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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.

Landscapes

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

Abstract

L'invention concerne un dispositif de conditionnement d'air (A) comprenant : un échangeur de chaleur (7) pour régler la température de l'air, un ventilateur (9) pour entraîner l'écoulement de l'air, et un moteur (8) pour entraîner la rotation du ventilateur (8), lesdits composants étant disposés à l'intérieur d'un boîtier (1) ; un orifice d'aspiration d'air (14s) et des orifices d'évacuation d'air (12a, 12b, 12c et 12d) ; un premier chemin d'écoulement reliant l'orifice d'aspiration (14s) et l'échangeur de chaleur (7), et un second chemin d'écoulement reliant l'échangeur de chaleur (7) et les orifices d'évacuation (12a, 12b, 12c et 12d) ; et un matériau d'isolation thermique (2) prévu entre le boîtier (1) et le second chemin d'écoulement, dans lequel s'écoule l'air qui a traversé l'échangeur de chaleur (7) , et qui est relié à des orifices d'évacuation (12a, 12b, 12c et 12d). Des espaces (2s1, 2s2, 2t1 et 2t2) sont ménagés entre le boîtier (1) et le matériau d'isolation thermique (2), et des éléments à faible émissivité (3) présentant une émissivité inférieure à celle du matériau d'isolation thermique (2) sont disposés dans les espaces (2s1, 2s2, 2t1 et 2t2).
PCT/JP2014/082843 2014-12-11 2014-12-11 Dispositif de conditionnement d'air WO2016092669A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/082843 WO2016092669A1 (fr) 2014-12-11 2014-12-11 Dispositif de conditionnement d'air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/082843 WO2016092669A1 (fr) 2014-12-11 2014-12-11 Dispositif de conditionnement d'air

Publications (1)

Publication Number Publication Date
WO2016092669A1 true WO2016092669A1 (fr) 2016-06-16

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Country Link
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Cited By (1)

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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001091039A (ja) * 1993-04-09 2001-04-06 Daikin Ind Ltd 空気調和装置
JP2004317022A (ja) * 2003-04-16 2004-11-11 Nbc Inc エアコン室外機遮熱用カバー
JP2009109049A (ja) * 2007-10-29 2009-05-21 Panasonic Corp 空気調和機
JP2011208826A (ja) * 2010-03-29 2011-10-20 Daikin Industries Ltd 空調室内機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001091039A (ja) * 1993-04-09 2001-04-06 Daikin Ind Ltd 空気調和装置
JP2004317022A (ja) * 2003-04-16 2004-11-11 Nbc Inc エアコン室外機遮熱用カバー
JP2009109049A (ja) * 2007-10-29 2009-05-21 Panasonic Corp 空気調和機
JP2011208826A (ja) * 2010-03-29 2011-10-20 Daikin Industries Ltd 空調室内機

Cited By (1)

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

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