WO2020240759A1 - 空気調和機の室内機 - Google Patents
空気調和機の室内機 Download PDFInfo
- Publication number
- WO2020240759A1 WO2020240759A1 PCT/JP2019/021459 JP2019021459W WO2020240759A1 WO 2020240759 A1 WO2020240759 A1 WO 2020240759A1 JP 2019021459 W JP2019021459 W JP 2019021459W WO 2020240759 A1 WO2020240759 A1 WO 2020240759A1
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- WO
- WIPO (PCT)
- Prior art keywords
- outlet
- air
- indoor unit
- wind direction
- windshield
- Prior art date
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Classifications
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
Definitions
- the present invention relates to an indoor unit of an air conditioner provided with a vertical wind direction plate.
- an indoor unit of an air conditioner in which a storage space for accommodating an electrical component box is formed is known.
- the outlet is formed at a position close to one side of the indoor unit, and the accommodation space is formed at a position close to the other side of the indoor unit.
- the accommodation space is formed so as to be recessed from the housing and may be connected to the outlet. That is, the accommodation space has an appearance integrated with the outlet.
- the vertical wind direction plate is arranged over substantially the entire width of the lower part of the housing, and is provided so as to cover the outlet and the accommodation space.
- the accommodation space is not covered by the vertical wind direction plate unless it is formed so as to be integrated with the outlet.
- the vertical wind direction plate covers only the outlet, it is arranged close to one side in the width direction of the housing. Therefore, the indoor unit has a higher design than the case where the accommodation space is integrated with the outlet and the accommodation space is not integrated with the outlet.
- the force of the blown air is weak, and warm air in the room can flow in when the air conditioner is in the cooling operation. Therefore, there is a possibility that dew condensation may occur on the portion of the vertical wind direction plate facing the accommodation space.
- Patent Document 1 discloses an indoor unit in which a plurality of ribs are provided on a portion of the wind guide surface of the vertical wind direction plate that guides the air blown from the outlet so as to face the accommodation space.
- Each rib has a substantially rectangular parallelepiped shape, but each has a different height, and is provided at approximately the center of the wind guide surface in the front-rear direction so as to gradually increase toward the outlet. ..
- the longitudinal direction of the rib is parallel to the front-rear direction of the housing. Therefore, the warm air in the room is prevented from flowing into the place where the dew point temperature is lower than the dew point temperature on the wind guide surface of the vertical wind direction plate. In this way, the indoor unit of Patent Document 1 is intended to suppress the occurrence of dew condensation on the vertical wind direction plate while maintaining the design of the indoor unit.
- the ribs formed on the vertical wind direction plate of the indoor unit disclosed in Patent Document 1 are provided at substantially the center of the wind guide surface in the front-rear direction so that the longitudinal direction is parallel to the front-rear direction of the housing. ing. Therefore, during the operation of the air conditioner, the blown air flows along the wind guide surface so as to pass between the ribs. That is, since the blown air does not flow on the design surface side of the vertical wind direction plate, the warm air in the room staying on the design surface side cannot be discharged. Therefore, due to the temperature difference between the cold air passing through the wind guide surface of the vertical wind direction plate and the warm air in the room, dew condensation may occur on the design surface of the vertical wind direction plate.
- the present invention has been made to solve the above problems, and provides an indoor unit of an air conditioner in which dew condensation does not occur on the design surface of the upper and lower wind direction plates while maintaining the design of the indoor unit. Is.
- a suction port for sucking indoor air, an outlet for blowing out the air sucked from the suction port, and a storage space connected to the outlet for accommodating an electrical component box are formed.
- the housing is provided with a housing and a vertical air direction plate which is provided in the housing so as to cover the air outlet and the accommodation space and adjusts the direction of the air blown from the air outlet.
- the vertical air direction plate is provided with air blown from the air outlet.
- a windshield is provided at the rear edge of the housing in the portion facing the accommodation space to block the air blown out from the air outlet.
- the air conditioner when the air conditioner is in the cooling operation, a part of the cold air blown out from the outlet collides with the windshield.
- the cold air that collides with the windshield flows into the design surface side of the vertical wind direction plate, and flows along the design surface of the vertical wind direction plate while pushing out the warm air in the room that has accumulated on the design surface of the vertical wind direction plate. ..
- the cold air that did not collide with the windshield is blown out from the indoor unit along the wind guide surface. That is, cold air flows on both the wind guide surface and the design surface of the vertical wind direction plate. Therefore, no temperature difference occurs between the wind guide surface and the design surface of the vertical wind direction plate. Therefore, it is possible to prevent dew condensation from occurring on the design surface of the vertical wind direction plate while maintaining the high design of the indoor unit obtained by integrating the accommodation space with the outlet.
- FIG. 72 It is a perspective view which shows the windshield part 72 which concerns on Embodiment 1.
- FIG. It is a perspective view which shows the windshield part 72 which concerns on Embodiment 1.
- FIG. 72 It is sectional drawing which shows the windshield part 72 which concerns on Embodiment 1.
- FIG. 1 is a circuit diagram showing an air conditioner 100 according to the first embodiment.
- the air conditioner 100 includes an outdoor unit 1, an indoor unit 2, and a refrigerant pipe 3. Although one indoor unit 2 is illustrated in FIG. 1, the number of indoor units 2 may be two or more.
- the outdoor unit 1 includes a compressor 11, a flow path switching device 12, an outdoor heat exchanger 13, an outdoor blower 14, and an expansion unit 15.
- the indoor unit 2 has an indoor heat exchanger 21, an indoor blower 22, a housing 23, an electrical component box 24, a vertical wind direction plate 25, and a vertical wind direction plate 25.
- the refrigerant pipe 3 connects the flow path switching device 12, the outdoor heat exchanger 13, the expansion unit 15, and the indoor heat exchanger 21, and the refrigerant flows inside to form the refrigerant circuit 4.
- the compressor 11 sucks in the refrigerant in a low temperature and low pressure state, compresses the sucked refrigerant into a refrigerant in a high temperature and high pressure state, and discharges the refrigerant.
- the flow path switching device 12 switches the flow direction of the refrigerant in the refrigerant circuit 4, and is, for example, a four-way valve.
- the outdoor heat exchanger 13 exchanges heat between the refrigerant and the outdoor air, and is, for example, a fin-and-tube heat exchanger.
- the outdoor heat exchanger 13 acts as a condenser during the cooling operation and as an evaporator during the heating operation.
- the outdoor blower 14 is a device that sends outdoor air to the outdoor heat exchanger 13.
- the expansion unit 15 is a pressure reducing valve or an expansion valve that decompresses and expands the refrigerant.
- the indoor heat exchanger 21 exchanges heat between the indoor air and the refrigerant.
- the outdoor heat exchanger 13 acts as an evaporator during the cooling operation and as a condenser during the heating operation.
- the indoor blower 22 is a device that sends indoor air to the indoor heat exchanger 21, for example, a cross flow fan.
- the liquid-state refrigerant flows into the expansion unit 15 and is depressurized and expanded to become a low-temperature and low-pressure gas-liquid two-phase state refrigerant.
- the gas-liquid two-phase refrigerant flows into the indoor heat exchanger 21 that acts as an evaporator.
- the refrigerant flowing into the indoor heat exchanger 21 exchanges heat with the indoor air sent by the indoor blower 22 and evaporates to gasify. At that time, the indoor air is cooled and the indoor cooling is performed. After that, the evaporated low-temperature and low-pressure gas-state refrigerant passes through the flow path switching device 12 and is sucked into the compressor 11.
- Heating operation Next, the heating operation will be described.
- the refrigerant sucked into the compressor 11 is compressed by the compressor 11 and discharged in a high-temperature and high-pressure gas state.
- the high-temperature and high-pressure gas-state refrigerant discharged from the compressor 11 passes through the flow path switching device 12 and flows into the indoor heat exchanger 21 that acts as a condenser.
- the refrigerant flowing into the indoor heat exchanger 21 exchanges heat with the indoor air sent by the indoor blower 22, condenses and liquefies. At that time, the indoor air is warmed and the indoor heating is performed.
- the liquid-state refrigerant flows into the expansion unit 15 and is depressurized and expanded to become a low-temperature and low-pressure gas-liquid two-phase state refrigerant.
- the gas-liquid two-phase refrigerant flows into the outdoor heat exchanger 13 that acts as an evaporator.
- the refrigerant flowing into the outdoor heat exchanger 13 exchanges heat with the outdoor air sent by the outdoor blower 14, evaporates and gasifies. After that, the evaporated low-temperature and low-pressure gas-state refrigerant passes through the flow path switching device 12 and is sucked into the compressor 11.
- FIG. 2 is a front view showing the indoor unit 2 according to the first embodiment.
- FIG. 3 is a perspective view showing the indoor unit 2 according to the first embodiment.
- the housing 23 constitutes the outer shell of the indoor unit 2, and is made of, for example, resin.
- the housing 23 has a casing 31 and a front panel 32.
- FIG. 4 is a cross-sectional view showing the indoor unit 2 according to the first embodiment, and is a cross-sectional view taken along the line AA of FIG.
- FIG. 5 is a perspective view showing the indoor unit 2 according to the first embodiment.
- FIG. 6 is a perspective view showing the indoor unit 2 according to the first embodiment.
- the casing 31 forms a box body so as to accommodate each device of the indoor unit 2, and is attached to a wall in the room.
- a suction port 41, an outlet 42, an air passage 43, and a storage space 44 are formed in the casing 31.
- the casing 31 may be used as a ceiling-embedded indoor unit 2 by being embedded in the ceiling.
- the suction port 41 is an opening formed in the upper part of the casing 31 and sucks indoor air into the indoor unit 2.
- the suction port 41 may have a shape that allows indoor air to be sucked into the indoor unit 2. Further, the suction port 41 may be formed on the front panel 32 or only on the front panel 32 in addition to the upper portion of the casing 31.
- the outlet 42 is an opening formed in the lower part of the casing 31, and blows air into the room from the inside of the indoor unit 2.
- the outlet 42 has a substantially rectangular shape with the long side in the width direction of the indoor unit 2.
- the outlet 42 may have a shape other than a substantially rectangular shape as long as air can be blown out from the inside of the indoor unit 2.
- the air passage 43 is a space connecting the suction port 41 to the outlet 42, and the air sucked from the suction port 41 passes through when the indoor unit 2 is operating.
- the air passage 43 is provided with an indoor blower 22 arranged in an inverted V shape so as to surround the indoor heat exchanger 21 and the indoor heat exchanger 21 from the front surface to the upper surface.
- the indoor blower 22 does not have to be arranged in an inverted V shape.
- the accommodation space 44 is a recess formed in the lower part of the casing 31, and accommodates the electrical component box 24. Further, the accommodation space 44 is connected to the outlet 42 and exhibits an appearance integrated with the outlet 42.
- the front panel 32 is connected to the casing 31 and constitutes the front surface of the outer shell of the indoor unit 2.
- the electrical component box 24 is housed inside the housing 23 and houses a motor (not shown), an electronic control device (not shown), and the like.
- the vertical wind direction plate 25 is a plate-shaped member, and is provided below the casing 31.
- the vertical wind direction plate 25 is composed of two sheets, an upper wind direction plate 51 and a lower wind direction plate 52, and when the air conditioner 100 is stopped, the upper wind direction plate 51 presses the upper part of the outlet 42 and the accommodation space 44.
- the downwind direction plate 52 covers the lower part of the outlet 42 and the accommodation space 44.
- the number of the vertical wind direction plates 25 may be one or three or more, and all the vertical wind direction plates 25 cover the entire outlet 42 and the accommodation space 44.
- the vertical wind direction plate 25 can be swung in the vertical direction by a motor (not shown) during operation, and is blown out from the outlet 42 by maintaining or changing the opening degree. It adjusts the wind direction of the air up and down. Since the vertical wind direction plate 25 is arranged over substantially the entire width of the lower part of the housing 23, it covers the outlet 42 and the accommodation space 44.
- the vertical wind direction plate 25 does not cover the accommodation space 44. That is, the vertical wind direction plate 25 is arranged close to one side in the width direction of the housing 23 and covers only the outlet 42.
- the design is improved as compared with the case where the accommodation space 44 is not integrated with the outlet 42. high.
- the surface of the lower wind direction plate 52 is composed of two surfaces, a wind guide surface 61 and a design surface 62.
- the wind guide surface 61 serves as a surface of the downwind direction plate 52 on the air passage 43 side during operation, and guides the conditioned air blown out from the indoor unit 2.
- the design surface 62 is a surface that is integrated with the housing 23 of the indoor unit 2 when the operation is stopped, and is a surface on the indoor side.
- a windshield portion 72 is provided on the wind guide surface 61.
- the number of the vertical wind direction plates 25 may be one or three or more. When the number of the vertical wind direction plates 25 is other than two, the windshield portion 72 is provided on the vertical wind direction plate 25 located at the lowest position among the vertical wind direction plates 25.
- FIG. 7 is a front view showing the indoor unit 2 according to the first embodiment.
- FIG. 8 is a front view showing the windshield portion 72 according to the first embodiment.
- FIG. 9 is a perspective view showing the windshield portion 72 according to the first embodiment.
- the windshield portion 72 is a plate-shaped rib, and among the portions of the wind guide surface 61 facing the accommodation space 44, the rear edge portion 71 of the housing 23. It is provided in. Further, the windshield portion 72 is provided so as to extend along the edge portion 71 toward the outlet 42 side in the width direction, and extends upward. The windshield portion 72 blocks the air blown out from the outlet 42.
- FIG. 10 is a cross-sectional view showing the outlet 42 according to the first embodiment.
- the operation of the indoor unit 2 and the action of the windshield 72 when the air conditioner 100 performs the cooling operation will be described with reference to FIG.
- the indoor air is sucked into the indoor unit 2 from the suction port 41 of the indoor unit 2.
- the air sucked into the indoor unit 2 passes through the indoor heat exchanger 21 that acts as an evaporator, and is heat-exchanged with the air sent by the indoor blower 22 to become cold air.
- the heat-exchanged cold air is blown out from the outlet 42, and cooling is performed indoors.
- the lower wind direction plate 52 of the upper and lower wind direction plates 25 is provided with the windshield portion 72, a part of the cold air blown out from the outlet 42 collides with the windshield portion 72.
- the cold air that collided with the windshield 72 flows into the design surface 62 side of the vertical wind direction plate 25, and pushes out the warm air in the room that has accumulated on the design surface 62 of the vertical wind direction plate 25, while pushing the warm air into the design surface 62 of the vertical wind direction plate 25. It flows along.
- the cold air that did not collide with the windshield 72 is blown out from the indoor unit 2 along the wind guide surface 61. That is, since cold air flows through both the wind guide surface 61 and the design surface 62 of the vertical wind direction plate 25, no temperature difference occurs between the wind guide surface 61 and the design surface 62 of the vertical wind direction plate 25.
- the left and right wind direction plates 26 are plate-shaped members, and a plurality of left and right wind direction plates 26 are provided on the upstream side of the air passage 43 from the upper and lower wind direction plates 25 at the lower part of the casing 31.
- Each of the left and right wind direction plates 26 can be swung in the width direction by a motor (not shown), and by maintaining or changing the angle, the left and right wind directions of the air blown from the outdoor unit 1 are left and right. Is to adjust.
- the air conditioner 100 when the air conditioner 100 is in the cooling operation, a part of the cold air blown out from the outlet 42 collides with the windshield 72. At this time, the cold air that collided with the windshield portion 72 flows into the design surface 62 side of the vertical wind direction plate 25, and while pushing out the warm air in the room that has accumulated on the design surface 62 of the vertical wind direction plate 25, the vertical wind direction plate 25 It flows along the design surface 62. On the other hand, the cold air that did not collide with the windshield 72 is blown out from the indoor unit 2 along the wind guide surface 61. That is, cold air flows on both the wind guide surface 61 and the design surface 62 of the vertical wind direction plate 25.
- FIG. 11 is a cross-sectional view showing the outlet 142 according to the comparative example.
- the vertical wind direction plate 125 is composed of two sheets, an upper wind direction plate 151 and a lower wind direction plate 152, and is located below the front panel 132. Since the lower wind direction plate 152 in the comparative example does not have a windshield, almost all of the cold air blown out from the outlet 142 flows along the wind guide surface 161. Therefore, the warm air in the room staying on the design surface 162 cannot be discharged. Therefore, dew condensation may occur on the vertical wind direction plate 125 due to the temperature difference between the warm air staying on the design surface 162 and the cold air flowing through the wind guide surface 161.
- the vertical wind direction plate 25 of the first embodiment is provided with a windshield portion 72.
- the air conditioner 100 when the air conditioner 100 is in the cooling operation, a part of the cold air blown out from the outlet 42 collides with the windshield 72.
- the cold air that collided with the windshield portion 72 flows into the design surface 62 side of the vertical wind direction plate 25, and while pushing out the warm air in the room that has accumulated on the design surface 62 of the vertical wind direction plate 25, the vertical wind direction plate 25 It flows along the design surface 62.
- the cold air that did not collide with the windshield 72 is blown out from the indoor unit 2 along the wind guide surface 61.
- the windshield portion 72 may be provided at the rear edge portion 71 of the housing 23 among the portions of the wind guide surface 61 facing the accommodation space 44.
- the cold air that collides with the windshield portion 72 may generate turbulence in the space behind the wind guide surface 61. There is. Therefore, the cold air blown out from the outlet 42 does not smoothly flow to the design surface 62 side.
- the windshield portion 72 of the first embodiment is provided on the rear edge portion 71 of the housing 23, the cold air colliding with the windshield portion 72 is smoothly guided to the design surface 62 side. Be taken.
- the cold air that did not collide with the windshield 72 is blown out from the indoor unit 2 along the wind guide surface 61. That is, cold air flows on both the wind guide surface 61 and the design surface 62 of the vertical wind direction plate 25. Therefore, no temperature difference occurs between the wind guide surface 61 and the design surface 62 of the vertical wind direction plate 25. Therefore, it is possible to suppress the occurrence of dew condensation on the vertical wind direction plate 25 while maintaining the high design of the indoor unit 2 obtained by integrating the accommodation space 44 with the outlet 42.
- the windshield portion 72 is further provided on the rear edge portion 71 of the housing 23 among the portions of the wind guide surface 61 facing the accommodation space 44 so as to follow the edge portion 71. It spreads in the width direction and extends upward.
- the air conditioner 100 when the air conditioner 100 is in the cooling operation, a part of the cold air blown out from the outlet 42 surely collides with the windshield 72.
- the cold air that collided with the windshield portion 72 flows into the design surface 62 side of the vertical wind direction plate 25, and while pushing out the warm air in the room that has accumulated on the design surface 62 of the vertical wind direction plate 25, the vertical wind direction plate 25 It is blown out along the design surface 62.
- the cold air that did not collide with the windshield 72 is blown out from the indoor unit 2 along the wind guide surface 61. That is, cold air flows on both the wind guide surface 61 and the design surface 62 of the vertical wind direction plate 25. Therefore, no temperature difference occurs between the wind guide surface 61 and the design surface 62 of the vertical wind direction plate 25. Therefore, it is possible to further suppress the occurrence of dew condensation on the vertical wind direction plate 25 while maintaining the high design of the indoor unit 2 obtained by integrating the accommodation space 44 with the outlet 42.
- the windshield portion 72 is further provided so as to extend toward the outlet 42 side.
- the cold air that collides with the windshield 72 increases. Therefore, the air staying on the design surface 62 can be pushed out more efficiently. Therefore, it is possible to further suppress the occurrence of dew condensation on the vertical wind direction plate 25.
- FIG. 12 is a perspective view showing the windshield portion 72 according to the first embodiment.
- FIG. 13 is a cross-sectional view showing the windshield portion 72 according to the first embodiment.
- the back surface of the windshield portion 72 may be further formed so as to extend rearward and upward in the housing 23.
- the windshield portion 72 has a shape substantially orthogonal to the direction in which the cold air blown out from the outlet 42 flows. Therefore, when the cold air blown out from the outlet 42 collides with the windbreak portion 72, the wind pressure drops or turbulence occurs in the vicinity of the windshield portion 72. As a result, the amount of cold air flowing along the wind guide surface 61 is reduced, which may reduce the efficiency of air conditioning.
- the back surface of the windshield portion 72 is formed so as to extend rearward and upward in the housing 23, the back surface of the windshield portion 72 is in the direction in which the cold air blown out from the outlet 42 flows.
- the shape is substantially parallel. Therefore, when a part of the cold air blown out from the outlet 42 collides with the windbreak portion 72, it is possible to suppress a decrease in wind pressure or a turbulent flow in the vicinity of the windshield portion 72. Therefore, the amount of cold air flowing along the wind guide surface 61 is not excessively reduced, and the occurrence of dew condensation on the vertical wind direction plate 25 can be suppressed without lowering the efficiency of air conditioning.
- FIG. 14 is a perspective view showing the windshield portion 72 according to the first embodiment.
- the height of the windshield portion 72 may be formed so as to be higher toward the outlet 42.
- the windshield portion 72 can increase the amount of cold air that collides with the windshield portion 72 by increasing the area of the back surface.
- the effect of increasing the amount of cold air colliding with the windbreak portion 72 is greater as the higher portion of the windshield portion 72 is closer to the outlet 42.
- the effect of increasing the amount of cold air colliding with the windbreak portion 72 becomes smaller as the higher portion of the windshield portion 72 is farther from the outlet 42. Therefore, the height of the windshield portion 72 is formed so as to be higher toward the outlet 42, so that dew condensation occurs on the vertical wind direction plate 25 while suppressing the amount of the material used for the vertical wind direction plate 25. It can be suppressed.
- FIG. 15 is a cross-sectional view showing the windshield portion 72 according to the first embodiment.
- a heat insulating material 81 that suppresses heat transfer may be attached to the front surface of the windshield portion 72.
- the heat insulating material 81 is, for example, a heat insulating insulator (INS).
- INS heat insulating insulator
- the heat insulating material 81 When the heat insulating material 81 is attached to the front surface of the windbreak portion 72, it is possible to prevent the warm air from being cooled and prevent the occurrence of dew condensation on the windshield portion 72. Since the heat insulating material 81 is attached to the front surface of the windshield portion 72, it is hidden inside the housing 23 when the air conditioner 100 is stopped. That is, even if the heat insulating material 81 is attached to the front surface of the windshield portion 72, the design property is not deteriorated.
- FIG. 16 is a cross-sectional view showing a windshield portion 72 according to the first embodiment.
- a water absorbing material 82 that absorbs moisture may be attached to the front surface of the windshield portion 72.
- the water absorbing material 82 is, for example, a water absorbing insulator (INS).
- INS water absorbing insulator
- the water absorbing material 82 is attached to the front surface of the windbreak portion 72, it is possible to absorb the moisture contained in the warm air near the windshield portion 72 and suppress the occurrence of dew condensation on the windshield portion 72. ..
- the water absorbing material 82 is attached to the front surface of the windshield portion 72 like the heat insulating material, it is hidden inside the housing 23 when the air conditioner 100 is stopped. That is, even if the water absorbing material 82 is attached to the front surface of the windshield portion 72, the designability does not deteriorate.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Central Air Conditioning (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
Description
以下、実施の形態1に係る空気調和機100の室内機2について、図面を参照しながら説明する。図1は、実施の形態1に係る空気調和機100を示す回路図である。図1に示すように、空気調和機100は、室外機1、室内機2及び冷媒配管3を有している。なお、図1では、1台の室内機2を例示しているが、室内機2の台数は、2台以上でもよい。
室外機1は、圧縮機11、流路切替装置12、室外熱交換器13、室外送風機14及び膨張部15を有している。室内機2は、室内熱交換器21、室内送風機22、筐体23、電装品箱24、上下風向板25及び上下風向板25を有している。冷媒配管3は、流路切替装置12、室外熱交換器13、膨張部15及び室内熱交換器21を接続すると共に、内部に冷媒が流れることで冷媒回路4を構成するものである。
圧縮機11は、低温且つ低圧の状態の冷媒を吸入し、吸入した冷媒を圧縮して高温且つ高圧の状態の冷媒にして吐出するものである。流路切替装置12は、冷媒回路4において、冷媒の流通方向を切り替えるものであり、例えば四方弁である。室外熱交換器13は、冷媒と室外空気との間で熱交換を行うものであり、例えばフィンアンドチューブ型熱交換器である。室外熱交換器13は、冷房運転時には凝縮器として作用し、暖房運転時には蒸発器として作用する。室外送風機14は、室外熱交換器13に室外空気を送る機器である。膨張部15は、冷媒を減圧して膨張させる減圧弁又は膨張弁である。
室内熱交換器21は、室内空気と冷媒との間で熱交換を行うものである。室外熱交換器13は、冷房運転時には蒸発器として作用し、暖房運転時には凝縮器として作用する。室内送風機22は、室内熱交換器21に室内空気を送る機器であり、例えば、クロスフローファンである。
ここで、空気調和機100の動作について説明する。先ず、冷房運転について説明する。冷房運転において、圧縮機11に吸入された冷媒は、圧縮機11によって圧縮されて高温且つ高圧のガス状態で吐出される。圧縮機11から吐出された高温且つ高圧のガス状態の冷媒は、流路切替装置12を通過して、凝縮器として作用する室外熱交換器13に流入する。室外熱交換器13に流入した冷媒は、室外送風機14によって送られる室外空気と熱交換されて凝縮し、液化する。液状態の冷媒は、膨張部15に流入し、減圧及び膨張されて、低温且つ低圧の気液二相状態の冷媒となる。気液二相状態の冷媒は、蒸発器として作用する室内熱交換器21に流入する。室内熱交換器21に流入した冷媒は、室内送風機22によって送られる室内空気と熱交換されて蒸発し、ガス化する。その際、室内空気が冷却されて室内における冷房が実施される。その後、蒸発した低温且つ低圧のガス状態の冷媒は、流路切替装置12を通過して、圧縮機11に吸入される。
次に、暖房運転について説明する。暖房運転において、圧縮機11に吸入された冷媒は、圧縮機11によって圧縮されて高温且つ高圧のガス状態で吐出される。圧縮機11から吐出された高温且つ高圧のガス状態の冷媒は、流路切替装置12を通過して、凝縮器として作用する室内熱交換器21に流入する。室内熱交換器21に流入した冷媒は、室内送風機22によって送られる室内空気と熱交換されて凝縮し、液化する。その際、室内空気が温められて、室内における暖房が実施される。液状態の冷媒は、膨張部15に流入し、減圧及び膨張されて、低温且つ低圧の気液二相状態の冷媒となる。気液二相状態の冷媒は、蒸発器として作用する室外熱交換器13に流入する。室外熱交換器13に流入した冷媒は、室外送風機14によって送られる室外空気と熱交換されて蒸発し、ガス化する。その後、蒸発した低温且つ低圧のガス状態の冷媒は、流路切替装置12を通過して、圧縮機11に吸入される。
図2は、実施の形態1に係る室内機2を示す正面図である。図3は、実施の形態1に係る室内機2を示す斜視図である。図2及び図3に示すように、筐体23は、室内機2の外殻を構成するものであり、例えば、樹脂製である。筐体23は、ケーシング31及び正面パネル32を有する。
図4は、実施の形態1に係る室内機2を示す断面図であり、図2のA-A断面である。図5は、実施の形態1に係る室内機2を示す斜視図である。そして、図6は、実施の形態1に係る室内機2を示す斜視図である。図4~図6に示すように、ケーシング31は、室内機2の各機器が収容されるように箱体をなすものであり、室内の壁に取りつけられる。ケーシング31には、吸込み口41、吹出し口42、風路43及び収容空間44が形成されている。なお、ケーシング31は、天井に埋め込まれることで、天井埋め込み型の室内機2として用いられてもよい。
吸込み口41は、ケーシング31の上部に形成された開口であり、室内空気を室内機2の内部に吸い込む。なお、吸込み口41は、室内機2の内部に室内空気を吸い込むことが出来る形状であればよい。また、吸込み口41は、ケーシング31の上部に加えて、正面パネル32に形成されていたり、正面パネル32にのみ形成されていたりしてもよい。吹出し口42は、ケーシング31下部に形成された開口であり、室内機2の内部から室内に空気を吹き出す。吹出し口42は、室内機2の幅方向を長辺とする略長方形をなしている。なお、吹出し口42は、室内機2の内部から空気を吹き出すことが出来ればよく、略長方形の形状以外でもよい。
風路43は、吸込み口41から吹出し口42までを接続する空間であり、室内機2が運転している際に、吸込み口41から吸い込まれた空気が通る。風路43には、室内熱交換器21及び室内熱交換器21を前面から上面にかけて取り囲むようにV字を逆さにした形状に配置された室内送風機22が設けられている。なお、室内送風機22は、V字を逆さにした形状に配置されなくともよい。収容空間44は、ケーシング31下部に形成された窪みであり、電装品箱24が収容される。また、収容空間44は、吹出し口42に接続され、吹出し口42と一体化された外観を呈する。
正面パネル32は、ケーシング31に接続され、室内機2における外殻の正面を構成するものである。電装品箱24は、筐体23内部に格納され、モーター(図示せず)及び電子制御装置(図示せず)等を収めるものである。
上下風向板25は、板状の部材であり、ケーシング31の下部に設けられる。上下風向板25は、上風向板51及び下風向板52の2枚からなり、空気調和機100が運転を停止している際に、上風向板51が吹出し口42及び収容空間44の上部を覆うと共に、下風向板52が吹出し口42及び収容空間44の下部を覆う。なお、上下風向板25の枚数は、1枚又は3枚以上であってもよく、全ての上下風向板25によって、吹出し口42及び収容空間44の全体が覆われる。上下風向板25は、運転をしている際に、モーター(図示せず)によって上下方向に搖動が可能であり、開度を維持したり、変化したりすることで吹出し口42から吹き出される空気の風向の上下を調整するものである。上下風向板25は、筐体23下部の略全幅にわたって配置されているため、吹出し口42及び収容空間44を覆う。
図7は、実施の形態1に係る室内機2を示す正面図である。図8は、実施の形態1に係る遮風部72を示す正面図である。図9は、実施の形態1に係る遮風部72を示す斜視図である。図7、図8及び図9に示すように、遮風部72は、板状のリブであり、風案内面61の収容空間44に対向する部分のうち、筐体23における後方の縁部71に設けられている。また、遮風部72は、縁部71に沿って吹出し口42側に延びるように幅方向に広がって設けられると共に、上方に延びている。遮風部72は、吹出し口42から吹き出された空気を遮る。
左右風向板26は、板状の部材であり、複数の左右風向板26がケーシング31の下部における上下風向板25より風路43の上流側に設けられる。それぞれの左右風向板26は、モーター(図示せず)によって幅方向に揺動が可能であり、角度を維持したり、変化したりすることで、室外機1から吹き出される空気の風向の左右を調整するものである。
Claims (6)
- 室内空気を吸い込む吸込み口と、前記吸込み口から吸い込まれた空気を吹き出す吹出し口と、前記吹出し口に接続され電装品箱を収容する収容空間とが形成された筐体と、
前記吹出し口及び前記収容空間を覆うように前記筐体に設けられ、前記吹出し口から吹き出す空気の方向を調整する上下風向板と、を備え、
前記上下風向板は、
前記吹出し口から吹き出される空気を案内する風案内面において、前記収容空間に対向する部分のうち前記筐体における後方の縁部に、前記吹出し口から吹き出された空気を遮る遮風部が設けられている
空気調和機の室内機。 - 前記遮風部は、
前記上下風向板の後方の縁部に沿うと共に、上方に延びるように設けられている
請求項1記載の空気調和機の室内機。 - 前記遮風部は、
前記吹出し口側に延びるように設けられている
請求項1又は請求項2に記載の空気調和機の室内機。 - 前記遮風部の背面は、
前記筐体における後方且つ上方に延びるように形成されている
請求項1~請求項3のいずれか1項に記載の空気調和機の室内機。 - 前記遮風部の高さは、
前記吹出し口に向かい高くなる
請求項1~請求項4のいずれか1項に記載の空気調和機の室内機。 - 前記遮風部には、
熱移動を抑制する断熱材又は水分を吸収する吸水材が貼り付けられている
請求項1~請求項5のいずれか1項に記載の空気調和機の室内機。
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JPH11237107A (ja) * | 1998-02-24 | 1999-08-31 | Fujitsu General Ltd | 空気調和機 |
JP2003090592A (ja) * | 2001-09-20 | 2003-03-28 | Fujitsu General Ltd | 空気調和機 |
JP2009144979A (ja) * | 2007-12-14 | 2009-07-02 | Panasonic Corp | 空気調和機 |
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JPH07190470A (ja) | 1993-12-24 | 1995-07-28 | Matsushita Electric Ind Co Ltd | 空気調和機の室内ユニット |
JP5402616B2 (ja) | 2009-12-24 | 2014-01-29 | 株式会社富士通ゼネラル | 空気調和機 |
JP5402871B2 (ja) | 2010-08-06 | 2014-01-29 | ダイキン工業株式会社 | 室内機 |
JP6767688B2 (ja) | 2015-05-20 | 2020-10-14 | パナソニックIpマネジメント株式会社 | 室内空調システム |
JP6956794B2 (ja) | 2017-08-08 | 2021-11-02 | 三菱電機株式会社 | 空気調和機の室内機 |
CN208025631U (zh) | 2017-12-28 | 2018-10-30 | 奥克斯空调股份有限公司 | 一种空调柜机出风组件及空调器 |
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JPH11237107A (ja) * | 1998-02-24 | 1999-08-31 | Fujitsu General Ltd | 空気調和機 |
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