Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
  • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling

Definitions

• the present invention relates to an air conditioner that prevents dew condensation.
• indoor units for air conditioners are shown in Fig. 4A.
• the indoor unit 101 sucks air from a suction port 105 with a turbo fan 103 driven by a motor 102, and heat-exchanges this air with a heat exchanger 106 before blowing it out. It blows out from the outlet 1 08 via the passage 1 0 7.
• 109 is a wind direction blade.
• FIG. 4B shows the indoor unit 101 viewed from below.
• Fig. 4A is a cross section taken along the line Z-Z in Fig. 4B.
• An elongated rectangular outlet 105 surrounding the inlet 108 is formed in the panel 112.
• the case 115 has closing portions 113 A, 113 ⁇ for closing both end regions of predetermined dimensions from both ends of the outlet 110 to the center.
• the case 1 15 has a closing portion 1 16 for closing a predetermined dimension region from the end of the outlet 1 08 to the center, and a closing portion for closing a predetermined size region from the end of the outlet 1 1 1 to the center. It has 1 1 7
• an object of the present invention is to provide an air conditioner that can increase the blowing wind speed without dew condensation at the outlet.
• an air conditioner includes an air outlet that blows air from an indoor heat exchanger, and a predetermined distance from an end of the air outlet toward a center of the air outlet. It is characterized by comprising a closing member arranged and partially closing the air outlet, and a wind vane provided downstream of the closing member.
• the closing member is disposed at a position separated from the end of the outlet by a predetermined dimension. Therefore, when the cool air from the indoor heat exchanger hits the closing member during cooling, the cool air can flow through the openings on both sides of the closing member.
• the end of the wind direction blade is covered with cold air, compared with a case where a closing portion continuously extending from the end of the air outlet is provided as in the related art. Since the contact between the cold air and the room air at the end of the blade can be avoided, dew condensation can be suppressed. Therefore, according to this air conditioner, it is possible to increase the blowing wind speed and increase the reaching distance of the blowing wind without dew condensation at the end of the wind direction blade.
• the air conditioner according to one embodiment is the air conditioner according to claim 1, wherein a size between both ends of the air outlet is smaller than a size between both ends of an opening to which the wind direction blade is attached, .
• an air conditioner of another embodiment is an air conditioner in which a fan and a heat exchanger are arranged in a casing, an outlet passage forming member that forms an outlet passage is disposed, and a wind vane is provided at an outlet.
• a space is provided between the blow-out passage forming member and the axial end of the wind-direction vane, and the wind is guided from the blow-out passage toward the space, and an axial end of the wind-direction vane is provided.
• a guide plate that guides wind to the air outlet, and a closing member that is disposed at a predetermined distance from the end of the outlet toward the center of the outlet and partially blocks the outlet.
• An air conditioner is the air conditioner according to claim 3, wherein a part of the guide plate protrudes into the blowing passage, and the guide plate includes an axial direction of the wind direction blade. There is a hole at the end to guide the wind.
• An air conditioner according to another embodiment of the present invention is the air conditioner according to claim 3 or 4, wherein a tip end of the guide plate protruding into the outlet passage faces upstream of the outlet passage with respect to a base. It is bent diagonally.
• the front end of the guide plate protrudes into the outlet passage, and is bent obliquely toward the upstream side of the outlet passage with respect to the base. Part of the flowing cold air is taken in reliably and smoothly, and flows in the space along the surface of the guide plate. Therefore, it is possible to reliably and smoothly guide the cool air to the axial ends of the wind direction blades, thereby preventing the occurrence of dew condensation.
• An air conditioner is the air conditioner according to any one of claims 3 to 5, wherein a wind is applied to a decorative panel having an air outlet at an axial end of the wind direction vane.
• a guiding section is provided.
• the cool air to be blown out from the outlet is guided by a guide portion provided on the decorative panel, and is guided around the axial end of the wind direction blade, particularly behind the end. It can be prevented from flowing along and forming condensation around the axial end of the wind vane. Therefore, not only the guide plate guides the cool air from the upstream side to the axial end of the wind direction vane, but also the cool air from the downstream side to the back side of the end by the guide portion of the decorative board. It is possible to more reliably prevent dew condensation from forming around.
• an air conditioner of another embodiment has a fan and a heat exchanger disposed in a casing, a discharge path forming member that forms a discharge path, a suction panel and a discharge port provided in a decorative panel, A wind direction vane is provided at this outlet, and air is sucked from the above-mentioned inlet, and is passed through the fan, the heat exchanger, and the outlet passage.
• the guide panel that guides the wind to an axial end of the wind direction blade is separated from the decorative panel by a predetermined distance from the end of the outlet toward the center of the outlet.
• a closing member for partially closing the outlet.
• the cool air to be blown out from the outlet is guided by a guide portion provided on the decorative panel, and is guided around the axial end of the wind direction blade, particularly behind the end. It is possible to prevent the formation of dew condensation around the axial end of the wind vane, especially on the back side of the end.
• the air conditioner according to one embodiment is the air conditioner according to claim 6 or 7, wherein the guide portion is located outside a corner of the outlet, and a part of the guide portion is provided in the outlet passage. Facing the inside part.
• the cold air to be blown out from the outlet collides with a part of the guide part facing a part of the inside of the outlet passage and is guided along the surface of the guide part.
• the guide since the guide is located outside the corner of the outlet, the cool air flowing along the surface of the guide is smoothly blown out from the outlet. Therefore, since the wind smoothly flows around the axial end of the wind direction blade, dew condensation can be reliably prevented.
• An air conditioner according to another embodiment is the air conditioner according to any one of claims 3 to 8, wherein the outlet passage forming member is a part of a drain pan.
• the outlet passage forming member is a part of the drain pan, the outlet passage can be easily formed, and when a space for the guide plate is provided, the space is defined by the drain pan. It can be easily and inexpensively formed by notching the part.
• an air conditioner of one embodiment is described in any one of claims 1 to 9.
• a value obtained by dividing a separation dimension in which the closing member is away from an end of the outlet toward the center of the outlet by a width of the closing member is greater than 0.2, And less than 1.0.
• FIG. 1A is a sectional view of an indoor unit of an air conditioner as an embodiment of the present invention
• FIG. 1B is a bottom view of the indoor unit.
• FIG. 2 is a cross-sectional view near the air outlet of the indoor unit.
• FIG. 3A is a cross-sectional view of the vicinity of an air outlet of a modification of the above embodiment
• FIG. 3B is a bottom view of the above modification.
• FIG. 4A is a cross-sectional view of a conventional air conditioner indoor unit
• FIG. 4B is a bottom view of the indoor unit.
• FIG. 1A shows a cross section of an indoor unit 1 of an air conditioner embedded in a ceiling as an embodiment of the present invention
• FIG. 1B shows a state of the indoor unit 1 viewed from below.
• FIG. 1A is a cross-sectional view taken along section line AA of FIG. 1B.
• the indoor unit 1 includes a decorative panel 2, a main body case 3, a motor 5 disposed in the main body case 3, a turbo fan 6, and an indoor heat exchanger 7.
• the decorative panel 2 has a suction port 8 largely opened at the center, and elongated rectangular outlets 10, 11, 12 formed around the suction port 8.
• a grill 13 and a filter 14 are arranged in the suction port 8. Further, wind direction blades 15, 16, 17 for adjusting the wind direction are arranged at the outlets 10, 11, 12.
• a closing member 20, 21 having a width Y is disposed at a position separated by a predetermined dimension X toward the center from both ends 1 1a, 1 lb of the outlet port 11 described above. It is fixed to the main body case 3 across the air outlet 11 and the air outlet 51 of the main body case 3 on the air conditioner main body side. Further, the closing members 22 and 23 are fixed to the main body case 3 so as to straddle the air outlets 10 and 12 and the air outlets 52 and 53 of the main body case 3.
• the closing members 20 and 21 are arranged at positions separated from the ends 11 a and 11 b of the outlet 11 by a predetermined dimension X. Therefore, when the cool air from the indoor heat exchanger 7 hits the closing member 20 (2 1) during cooling, as shown in FIG. 2, the cool air blows off the openings 3 on both sides of the closing member 20 (2 1). It can flow divided into 1 and 32 (33). Therefore, according to this embodiment, unlike the conventional case where a closing portion continuously extending from the end of the air outlet is provided, the ends 16 A and 16 B of the wind direction blade 16 are opened. , 33, so that the contact between the cold air and the indoor air at the ends 16A, 16B of the wind direction blade 16 can be avoided. Therefore, dew condensation at the wind direction blades 16 ends 16 A and 16 B can be suppressed, and without increasing dew condensation, the blowing wind speed can be increased and the reaching distance of the blowing wind can be increased.
• FIG. 3 shows a modification of the above embodiment.
• a guide plate is provided between the wind vanes 16 arranged downstream of 20, 21 and the projections 35, 36 projecting substantially horizontally from the lower end 3 of the case toward the closing members 20, 21.
• the protruding portions 35, 36 form a blowing passage forming member.
• the end openings 32, 33 and the opening 31 form an outlet passage.
• the protrusions 35, 36 form a blowing passage forming member.
• a small amount of cold air can flow around the axial ends 16 6 and 16B of the wind direction blade 16 to suppress wind turbulence at the ends 16A and 16B. it can. Therefore, there is no mixing of cool air and room warm air around the axial ends 16A, 16B of the wind direction blades 16, and it is difficult for the ends 16A, 16B to form dew. It becomes.
• a space is created above the protrusions 35, 36, and a desired mechanism (eg, a drain pan) can be installed in the space. In addition, prevention of dew condensation and increase in wind speed can be achieved. is there.
• a part of the guide plates 37, 38 overlaps with the openings 32, 33 forming the blow-out passage, and the guide plates 37, 38 include the wind vanes 16 Holes 41 for guiding the wind are provided at the axial ends 16 A and 16 B of the shaft. Therefore, a part of the guide plates 37, 38 causes part of the cold air in the openings 32, 33 to be bent along the surfaces of the guide plates 37, 38, It flows through the spaces 43, 43 along the inner plates 37, 38, and further passes through the holes 41 provided in the guide plates 37, 38, and the axial ends of the wind vanes 16 It is led to 16 A and 16 B.
• 4 3 can flow through. Therefore, it is possible to reliably and smoothly guide the cool air to the axial ends 16A and 16B of the wind direction blades 16 to prevent the occurrence of dew condensation.
• the outlet 1 The cold air to be blown out from 1 is guided by the above-mentioned guide portion and is guided around the axial ends 16 A and 16 B of the wind direction blades 16, particularly behind the ends 16 A and 16 B.
• the guide plates 37, 38 guide the cold air from the upstream side to the axial ends 16A, 16B of the wind direction blades 16 as well as the downstream side by the guide portion of the decorative panel 2.
• the cool air is guided from the side to the rear side of the ends 16A and 16B, the dew condensation around the ends 16A and 16B can be more reliably prevented.
• the guide portion is located outside the corner of the outlet 11 and a part of the inside is opposed to a part of the inside of the openings 32, 33 constituting the outlet passage. Then, the cold air that is about to be blown out from the outlet 11 collides with a part of the guide portion and is guided along the surface of the guide portion. Since this guide is located outside the corner of the outlet 11, the cool air flowing along the surface of the guide is smoothly blown out from the outlet 11. Therefore, since the cool air smoothly flows around the axial ends 16 A and 16 B of the wind direction blade 16, dew condensation can be reliably prevented.
• the air conditioner of the present invention can increase the blowing air speed without causing dew condensation at the outlet, and is useful for improving air conditioning performance while avoiding dew condensation.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Air-Flow Control Members (AREA)
• Duct Arrangements (AREA)
• Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
• Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=17691352

Family Applications (1)

Country Status (8)

Families Citing this family (10)

Citations (5)

Family Cites Families (2)

• 1997
  • 1997-10-17 JP JP28542497A patent/JP3240977B2/ja not_active Expired - Fee Related
• 1998
  • 1998-10-02 WO PCT/JP1998/004450 patent/WO1999020945A1/ja active IP Right Grant
  • 1998-10-02 CN CNB98801534XA patent/CN1143088C/zh not_active Expired - Fee Related
  • 1998-10-02 EP EP98945578A patent/EP0962716B1/en not_active Expired - Lifetime
  • 1998-10-02 ES ES98945578T patent/ES2236938T3/es not_active Expired - Lifetime
  • 1998-10-02 DE DE69828490T patent/DE69828490T2/de not_active Expired - Lifetime
  • 1998-10-02 AU AU92821/98A patent/AU719975B2/en not_active Ceased
• 2000
  • 2000-03-28 HK HK00101891A patent/HK1024944A1/xx unknown

Patent Citations (5)

Non-Patent Citations (1)

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