EP1553361A1 - Conditionneur d'air - Google Patents

Conditionneur d'air Download PDF

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Publication number
EP1553361A1
EP1553361A1 EP03756601A EP03756601A EP1553361A1 EP 1553361 A1 EP1553361 A1 EP 1553361A1 EP 03756601 A EP03756601 A EP 03756601A EP 03756601 A EP03756601 A EP 03756601A EP 1553361 A1 EP1553361 A1 EP 1553361A1
Authority
EP
European Patent Office
Prior art keywords
air
feed path
wind direction
discharged
air feed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03756601A
Other languages
German (de)
English (en)
Other versions
EP1553361A4 (fr
Inventor
Masaki Ohtsuka
Yukishige Shiraichi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of EP1553361A1 publication Critical patent/EP1553361A1/fr
Publication of EP1553361A4 publication Critical patent/EP1553361A4/fr
Withdrawn legal-status Critical Current

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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
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/28—Details or features not otherwise provided for using the Coanda effect

Definitions

  • the present invention relates to an air conditioner that conditions the air introduced inside and delivers the conditioned air throughout the room, and in particular, to an air conditioner capable of discharging the air upward.
  • Conventional air conditioners discharge the air in substantially horizontal and downward directions. Therefore, when the air is continuously discharged under the condition that the room temperature is around the set temperature, the user is constantly exposed to cold wind or warm wind, thus causing a problem of user discomfort. Moreover, in the dehumidifying and cooling modes, this condition decreases user's local body temperature, thus imposing a health problem on the user.
  • Patent Application Laid-open No. 2003-232531 discloses an air conditioner that can discharge the conditioned air in horizontal and downward directions, and can discharge the conditioned air in an upward direction when the room temperature has reached around the set temperature.
  • Fig. 9 is a side cross section showing an example of the indoor unit of an air conditioner that discharges the air in an upward direction.
  • the indoor unit 1 disposed near a room ceiling R has a main body held by a cabinet 2 that is attached on the wall.
  • a front panel 3 is removably attached to the cabinet 2.
  • the front panel 3 has an upper surface and a front surface provided with air inlets 4a and 4c, respectively.
  • An air outlet 5 in a substantially rectangular shape is provided in the space between the lower end portion of the front panel 3 and the lower end portion of the cabinet 2.
  • the air outlet 5 extends in the width direction of the indoor unit 1.
  • An air feed path 6 is formed inside the indoor unit 1.
  • the air feed path 6 leads to the air inlets 4a and 4c, and the air outlet 5.
  • An air feed fan 7 is disposed in the air feed path 6. Driving the air feed fan 7 causes the air flowing through the air feed path 6 to be discharged through the air outlet 5.
  • the air feed path 6 includes an upper wall 6a and a lower wall 6b.
  • the upper wall 6a is so tilted as to ascend forward near the air outlet 5.
  • the lower wall 6b is so tilted as to descend forward near the air outlet 5. Therefore, the air feed path 6 becomes gradually wider toward the air outlet 5 that is located downstream.
  • This structure allows conversion of the kinetic energy of the air flowing through the air feed path 6 into static pressure.
  • the load imposed on the air feed fan 7 can be reduced to thereby increase the air volume.
  • An air filter 8 is positioned so as to face the front panel 3.
  • the air filter collects and removes dust contained in the air that has been introduced through the air inlets 4a and 4c.
  • An indoor heat exchanger 9 is arranged in the air feed path 6, between the air feed fan 7 and the air filter 8.
  • the indoor heat exchanger 9 is connected to a compressor (not shown) disposed outdoors.
  • a refrigeration cycle is operated by driving the compressor.
  • the operation of the refrigeration cycle in the cooling mode cools down the indoor heat exchanger 9 to a temperature lower than the ambient temperature.
  • the operation of the refrigeration cycle in the heating mode heats the indoor heat exchanger 9 to a temperature higher than the ambient temperature.
  • Drain pans 10 are provided below a front and a back portion of the indoor heat exchanger 9. The drain pans 10 collect dew that drips from the indoor heat exchanger 9 in the cooling and dehumidifying modes.
  • the air outlet 5 includes transverse louvers 11a and 11b that face outward and that can change the vertical discharge angle.
  • the transverse louver 11a opens and closes the upper region of the air outlet 5.
  • the transverse louver 11b opens and closes the lower region of the air outlet 5.
  • the air discharge direction can be changed between a downward and an upward direction by the transverse louvers 11a and 11b.
  • Vertical louvers 12 are provided behind the transverse louvers 11a and 11b. The vertical louvers 12 can change the horizontal discharge angle.
  • the air feed fan 7 when the air conditioner starts its operation, the air feed fan 7 is driven into rotation.
  • a refrigerant fed from an outdoor unit (not shown) flows into the indoor heat exchanger 9 to operate a refrigerant cycle.
  • the rotation of the air feed fan 7 draws the air into the indoor unit 1 through the air inlets 4a and 4c. Dust contained in this air is removed by the air filter 8.
  • the air introduced into the indoor unit 1 is subjected to heat exchange conducted by the indoor heat exchanger 9 so as to be cooled or heated.
  • the conditioned air then passes through the air feed path 6, and the horizontal direction of the conditioned air is controlled by the vertical louver 12.
  • the conditioned air is then discharged through the air outlet 5 by being directed downward, as indicated by arrow A1, by the transverse louvers 11a and 11b that are oriented downward, thereby achieving indoor air conditioning.
  • the transverse louvers 11a and 11b are oriented upward as shown in Fig. 10. This causes the conditioned air to be discharged upward as indicated by arrow A2, thereby preventing cool air or warm air from constantly hitting the user, which alleviates the user discomfort. Moreover, a decrease in the local body temperature can be avoided.
  • the air discharged through the air outlet 5 is directed downward or upward along the transverse louvers 11a and 11b, respectively.
  • the conditioned air does not flow along the upper wall 6a of the air feed path 6.
  • the air at room temperature is drawn by the air discharged in the direction shown by the arrow A1, thus flowing into the air feed path 6 as indicated by an arrow B2.
  • the conditioned air is discharged in a direction indicated by arrow A2.
  • the air at room temperature flows into the air feed path 6 from the bottom as indicated by arrow B1. Consequently, the air that has flowed into the air feed path 6 stays in contact with the lower wall 6b of the air feed path 6, thereby causing a problem of dew condensation 99 occurring on the lower wall 6b of the air feed path 6.
  • the transverse louver 11b also encounters a problem of condensation occurring on the surface thereof, because air at different temperatures makes contact with the different surfaces of the transverse louver 11b.
  • the air feed path 6 widens toward the air outlet 5.
  • the conditioned air therefore, flows toward the air outlet 5 while radially widening.
  • the air in the upper region of the air outlet 5 collides with the upper transverse louver 11a, causing an increase in pressure loss.
  • an air conditioner for conditioning air introduced through an air inlet, changing a wind direction of air flowing through an air feed path upward or downward by wind direction change means, and then discharging the air through an air outlet is characterized in that the wind direction change means uses a Coanda effect to change the wind direction of the air discharged through the air outlet.
  • This configuration allows conditioning of the air introduced through the air inlet.
  • the air then passes through the air feed path and is discharged, e.g., downward, through the air outlet. Part of the air is discharged upward by the wind direction change means.
  • the wind direction of the air discharged upward is changed to the direction of the mainstream air by the Coanda effect.
  • the air feed path is structured such that its upper wall is so tilted as to ascend forward. Therefore, the air feed path widens toward a downstream side thereof.
  • the wind direction change means can be easily achieved by the use of a plurality of wind direction plates that are attached to the air outlet and of which directions can be changed.
  • the highest wind direction plate When the air is discharged upward through the air outlet, the highest wind direction plate is arranged at a standard position along the air flowing through the upper region of the air feed path. This arrangement permits the air flowing through the upper region of the air feed path to be directed in the extension direction from the wind direction plate.
  • the highest wind direction plate is so arranged as to be increasingly close to the upper wall of the air feed path toward a downstream side thereof starting from the standard position. This allows part of the air to flow along the upper wall of the air feed path. Then this air is led into the room along the mainstream air that is discharged downward.
  • the lowest wind direction plate When the air is discharged downward through the air outlet, the lowest wind direction plate is arranged at a standard position along the air flowing through the lower region of the air feed path. This arrangement permits the air flowing through the lower region of the air feed path to be direction in the extension direction from the wind direction plate.
  • the lowest wind direction plate When the air is discharged upward through the air outlet, the lowest wind direction plate is so arranged as to be close to the lower wall of the air feed path toward a downstream side thereof starting from the standard position. This arrangement allows part of the air to flow along the lower wall of the air feed path. Then this air is led into the room along the mainstream air that is discharged upward.
  • wind direction plates it is preferable to provide three or more wind direction plates because this allows easy control of the discharge direction of the mainstream with these wind direction plates excluding the highest or lowest one. It is more preferable to provide three wind direction plates because this allows easy control of the direction of each wind direction plate:
  • FIG. 1 is a schematic perspective view of an air conditioner according to a first embodiment of the present invention.
  • An indoor unit 1 of the air conditioner is disposed near a room ceiling R, and has a main body held by a cabinet 2 that is attached on a room wall.
  • a front panel 3 is removably attached to the cabinet 2.
  • the front panel 3 has an upper surface and a front surface provided with air inlets 4a and 4c, respectively.
  • An air outlet 5 in a substantially rectangular shape is provided in the space between the lower end portion of the front panel 3 and the lower end portion of the cabinet 2.
  • the air outlet 5 extends in the width direction of the indoor unit 1.
  • An air feed path 6 is formed inside the indoor unit 1.
  • the air feed path 6 leads to the air inlets 4a and 4c, and the air outlet 5.
  • An air feed fan 7 is disposed in the air feed path 6. Driving the air feed fan 7 causes the air flowing through the air feed path 6 to be discharged through the air outlet 5.
  • the air feed path 6 includes an upper wall 6a and a lower wall 6b.
  • the upper wall 6a is so tilted as to ascend forward near the air outlet 5.
  • the lower wall 6b is so tilted as to descend forward near the air outlet 5. Therefore, the air feed path 6 becomes gradually wider toward the air outlet 5 that is located downstream.
  • This structure allows conversion of the kinetic energy of the air flowing through the air feed path 6 into static pressure.
  • the load imposed on the air feed fan 7 can be reduced to thereby increase the air volume.
  • An air filter 8 is positioned so as to face the front panel 3.
  • the air filter 8 collects and removes dust contained in the air that has been introduced through the air inlets 4a and 4c.
  • An indoor heat exchanger 9 is arranged in the air feed path 6 between the air feed fan 7 and the air filter 8.
  • Drain pans 10 are provided below a front and a back portion of the indoor heat exchanger 9.
  • the drain pans 10 collect dew that drips from the indoor heat exchanger 9 in the cooling and dehumidifying modes.
  • An ion generator 30 that generates ions is provided adjacent to the front-side of the drain pan 10.
  • the ion generator 30 has a discharge surface 30a that faces the air feed path 6.
  • the air outlet 5 includes transverse louvers 11a and 11b that face outward and that can change the vertical discharge angle.
  • the transverse louver 11a opens and closes the upper region of the air outlet 5.
  • the transverse louver 11b opens and closes the lower region of the air outlet 5.
  • the air discharge direction can be changed between a downward and an upward direction by the transverse louvers 11a and 11b.
  • Vertical louvers 12 are provided behind the transverse louvers 11a and 11b. The vertical louvers 12 can change the horizontal discharge angle.
  • Fig. 4 is a circuit diagram showing the refrigeration cycle operated in the air conditioner.
  • An outdoor unit (not shown) is connected to the indoor unit 1 of the air conditioner, and includes a compressor 62, a four-way selector valve 63, an outdoor heat exchanger 64, an air feed fan 65, and a valve mechanism 66.
  • the compressor 62 has one end thereof connected to the outdoor heat exchanger 64 through the four-way selector valve 63 by a refrigerant pipe 67.
  • the compressor 62 has the other end thereof connected to the indoor heat exchanger 9 through the four-way selector valve 63 by the refrigerant pipe 67.
  • the outdoor heat exchanger 64 is connected to the indoor heat exchanger 9 through the valve mechanism 66 by the refrigerant pipe 67.
  • the operation of the refrigeration cycle 68 cools down the indoor heat exchanger 9 to a temperature lower than the ambient temperature.
  • the four-way selector valve 63 is switched to rotate the air feed fan 65, thereby circulating the refrigerant in the direction reverse to the above-mentioned direction. As a result, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature.
  • Fig. 5 shows a remote controller 31 that can communicate with the indoor unit 1.
  • the remote controller 31 includes a display 35 that displays the room temperature, the operation condition, etc., and an operation portion 36 provided with various control buttons.
  • An operation stop button 37 provided on the operation portion 36 switches on and off the air conditioner.
  • the operation portion 36 is also provided with a switch button 38, an upward-downward wind direction button 32.
  • the switch button 38 makes switching among cooling, heating, and dehumidifying modes.
  • the upward-downward wind direction button 32 changes the orientation of the transverse louvers 11a and 11b to permit the user to set a desired wind direction.
  • downward-forward discharge and upward-forward discharge be alternatively selected by operating the upward-downward wind direction button 32, which makes it easy to recognize the operation of the remote controller 31.
  • a different name may be given to the upward-downward wind direction button 32. Indicating on or near this button the effect provided by the button clearly tells the function carried out by the button, offering improved convenience. As shown in Fig. 6, sliding a cover 31a located at the lower portion exposes an operation portion 36a that permits manual setting of detailed operations.
  • Fig. 2 shows how air is discharged downward by the air conditioner provided with the above-mentioned structure.
  • the air feed fan 7 When the air conditioner starts its operation, the air feed fan 7 is driven into rotation. A refrigerant fed from the outdoor unit (not shown) flows into the indoor heat exchanger 9 to start a refrigerant cycle. The rotation of the air feed fan 7 introduces the air into the indoor unit 1 through the air inlets 4a and 4b. Dust contained in this air is removed by the air filter 8. The ion generator 30 is driven to emit ions from the discharge surface 30a into the air feed path 6.
  • the air introduced into the indoor unit 1 is subjected to heat exchange conducted by the indoor heat exchanger 9 so as to be cooled down or heated.
  • the conditioned air then passes through the air feed path 6, and the horizontal direction of the conditioned air is controlled by the vertical louvers 12.
  • the lower transverse louver 11b is arranged at a standard position substantially parallel with the air flowing through the lower region of the air feed path 6. This arrangement allows the air flowing through the lower region of the air feed path 6 to be led in the extension direction from the transverse louver 11b.
  • the upper transverse louver 11a is arranged with such a tilt that the upper transverse louver 11a is increasingly close to the upper wall 6a of the air feed path 6 toward a downstream side thereof relative to the air flow passing through the upper region of the air feed path 6.
  • a large amount of air passes through the substantially central region of the air feed path 6, thus resulting in a large angle being formed between the air flow and the transverse louver 11a. Therefore, the air is discharged not along the transverse louver 11a but in the direction of air flow in which the air has been traveling before reaching the air outlet 5. This causes the mainstream of a large proportion of the air flowing through the air feed path 6 to be discharged in the direction of the air flow that passes through the substantially central region and the lower region, as shown by arrow A1.
  • the air passing through the upper region of the air feed path 6 is directed by the transverse louvers 11a to be discharged along the upper wall 6a of the air feed path 6.
  • the mainstream air since the mainstream air is discharged through the air outlet 5 in the direction indicated by the arrow A1, a small amount of air passes through between the upper wall 6a and the transverse louver 11a.
  • the discharged air is drawn by the mainstream (A1) due to the Coanda effect so that the discharged air is led in the direction of the mainstream as indicated by arrow A4.
  • the upper transverse louver 11a When the indoor temperature is stable, the upper transverse louver 11a is arranged at a standard position substantially parallel with the air flowing through the upper region of the air feed path 6, as shown in Fig. 3. This arrangement allows the air flowing through the upper region of the air feed path 6 to be led in the extension direction from the transverse louver 11a.
  • the lower transverse louver 11b is arranged with such a tilt that the lower transverse louver 11b is increasingly close to the lower wall 6b of the air feed path 6 toward a downstream side thereof relative to the air flow passing through the lower region of the air feed path 6.
  • a large amount of air passes through the substantially central region of the air feed path 6, thus resulting in a large angle being formed between the air flow and the transverse louver 11b. Therefore, the air is discharged not along the transverse louver 11b but in the direction of air flow in which the air has being traveling before reaching the air outlet 5. This causes the mainstream of a large proportion of the air flowing through the air feed path 6 to be discharged in the direction of the air flow that passes through the substantially central region and the upper region, as shown by arrow A2.
  • the air passing through the lower region of the air feed path 6 is directed by the transverse louver 11b to be discharged along the lower wall 6a of the air feed path 6.
  • the mainstream air is discharged through the air outlet 5 in the direction indicated by the arrow A2
  • a small amount of air passes through between the lower wall 6b and the transverse louver 11b.
  • the discharged air is drawn by the mainstream (A2) due to the Coanda effect so that the discharged air is led in the direction of the mainstream as indicated by arrow A5.
  • the upper transverse louver 11a when the conditioned air is discharged downward, the upper transverse louver 11a is so tilted as to be increasingly close to the upper wall 6a of the air feed path 6 toward a downstream side thereof relative to the air flow passing through the upper region of the air feed path 6.
  • the upper air in the air feed path 6 flows in contact with the upper wall 6a.
  • air at room temperature does not flow along the upper wall 6a through the air outlet 5 as shown by arrow B2 (see Fig. 2), thus preventing condensation from occurring on the upper wall 6a.
  • the lower transverse louver 11b is so tilted as to be increasingly close to the lower wall 6b of the air feed path 6 toward a downstream side thereof relative to the air flow passing through the lower region of the air feed path 6.
  • the lower air in the air feed path 6 flows in contact with the lower wall 6b.
  • air at room temperature does not flow along the lower wall 6b through the air outlet 5 as shown by arrow B1 (see Fig. 3), thus preventing condensation from occurring on the lower wall 6b.
  • This can alleviate the collision between the air flows and the transverse louvers 11a and 11b, and also can avoid the diminishing of the flow area of the air discharged through the air outlet 5 so as to efficiently convert kinetic energy into static pressure. This in turn can avoid the lowering of the air volume offered by the air conditioner. In addition, ion loss can be avoided, thus improving sterilization and relaxation effects.
  • Fig. 5 is a side cross section of indoor unit of an air conditioner according to a second embodiment of the invention.
  • the same portions as those found in the first embodiment described above and shown in Figs. 1 to 4 are identified with the same numerals.
  • three transverse louvers 11a, 11b, and 11c are arranged side by side vertically at an air outlet 5.
  • the other portions are the same as in the first embodiment.
  • an air feed fan 7 When the air conditioner starts its operation, an air feed fan 7 is driven into rotation. A refrigerant fed from an outdoor unit (not shown) flows into an indoor heat exchanger 9 to operate a refrigerant cycle. The rotation of the air feed fan 7 permits air to be sucked into an indoor unit 1 through air inlets 4a and 4c. Dust contained in this air is removed by an air filter 8. An ion generator 30 is driven to emit ions from a discharge surface 30a into an air feed path 6.
  • the air introduced into the indoor unit 1 is subjected to heat exchange conducted by the indoor heat exchanger 9 so as to be cooled or heated.
  • the conditioned air then passes through the air feed path 6, and the horizontal direction of the conditioned air is controlled by vertical louvers 12.
  • the middle and lower transverse louvers 11c and 11b are arranged at their respective standard positions substantially parallel with the air flowing through the middle and lower regions, respectively, of the air feed path 6. This arrangement allows the air flowing through the middle and lower regions of the air feed path 6 to be led in the extension directions from the transverse louvers 11c and 11b, respectively.
  • the upper transverse louver 11a is arranged with such a tilt that the upper transverse louver 11a is increasingly close to an upper wall 6a of the air feed path 6 toward a downstream side thereof relative to the air flow passing through the upper region of the air feed path 6.
  • a large amount of air passes through between the transverse louvers 11c and 11a, thus resulting in a large angle being formed between the air flow and the transverse louver 11a. Therefore, the air is discharged not along the transverse louver 11a but in the direction of air flow in which the air has been traveling before reaching the air outlet 5. This causes the mainstream of a large proportion of the air flowing through the air feed path 6 to be discharged in the direction of the air flow that passes through the substantially central region and the lower region, as shown by arrow A1.
  • the air passing through the upper region of the air feed path 6 is directed by the transverse louvers 11a to be discharged along the upper wall 6a of the air feed path 6.
  • the mainstream air since the mainstream air is discharged through the air outlet 5 in the direction indicated by the arrow A1, a small amount of air passes through between the upper wall 6a and the transverse louver 11a.
  • the discharged air is drawn by the mainstream (A1) due to the Coanda effect so that the discharged air is led in the direction of the mainstream as indicated by arrow A4.
  • the upper and middle transverse louvers 11a and 11c are arranged at their respective standard positions substantially parallel with the air flowing through the upper and middle regions, respectively, of the air feed path 6, as shown in Fig. 8. This arrangement allows the air flowing through the upper and middle regions of the air feed path 6 to be led in the extension direction from the transverse louvers 11a and 11c, respectively.
  • the lower transverse louver 11b is arranged with such a tilt that the lower transverse louver 11b is increasingly close to a lower wall 6b of the air feed path 6 toward a downstream side thereof relative to the air flow passing through the lower region of the air feed path 6.
  • a large amount of air passes through between the transverse louvers 11c and 11b, thus resulting in a large angle being formed between the air flow and the transverse louver 11b. Therefore, the air is discharged not along the transverse louver 11b but in the direction of air flow in which the air has been traveling before reaching the air outlet 5. This causes the mainstream of a large proportion of the air flowing through the air feed path 6 to be discharged in the direction of the air flow that passes through the substantially central region and the upper region, as shown by arrow A2.
  • the air passing through the lower region of the air feed path 6 is directed by the transverse louver 11b to be discharged along the lower wall 6a of the air feed path 6.
  • the mainstream air is discharged through the air outlet 5 in the direction indicated by the arrow A2
  • a small amount of air flows through between the lower wall 6b and the transverse louver 11b.
  • the discharged air is drawn by the main stream (A2) due to the Coanda effect so that the discharged air is led in the direction of the mainstream as indicated by arrow A5.
  • the two transverse louvers excluding either the highest transverse louver 11a or the lowest transverse louver 11b can control the wind direction of the air discharged through the air outlet 5.
  • the first embodiment has difficulties in controlling the wind direction of the mainstream air, because a slight change in the direction of a transverse louver causes a great change in the wind direction.
  • the second embodiment achieves easy control of the mainstream direction.
  • the wind direction can be more easily controlled than in the first embodiment, even when four or more transverse louvers are provided.
  • wind direction change means uses the Coanda effect to change the wind direction of the air discharged through an air outlet. This allows the conditioned air to make contact with the wall surface of an air feed path near the air outlet during its discharge, thus avoiding condensation occurring on the wall surface of the air feed path.
  • the present invention can alleviate the impact between the air flow and the wind direction change means. Further, the invention can avoid the diminishing of the flow area of the air discharged through the air outlet to efficiently convert kinetic energy into static pressure, thus avoiding the lowering of the air volume provided by the air conditioner. In the case where an ion generator is provided, ion loss can be avoided, thus improving sterilization and relaxation effects.
  • the wind direction change means can be formed by a plurality of wind direction plates.
  • the use of two of the three wind direction plates, excluding either the highest wind direction plate or the lowest wind direction plate, allows easy control of the wind direction of the air discharged through the air outlet so as to change the wind direction by the Coanda effect. Furthermore, the use of three wind direction plates can make easy direction control.

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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)
EP03756601A 2002-09-25 2003-09-22 Conditionneur d'air Withdrawn EP1553361A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002279495 2002-09-25
JP2002279495A JP4017483B2 (ja) 2002-09-25 2002-09-25 空気調和機
PCT/JP2003/012109 WO2004029519A1 (fr) 2002-09-25 2003-09-22 Conditionneur d'air

Publications (2)

Publication Number Publication Date
EP1553361A1 true EP1553361A1 (fr) 2005-07-13
EP1553361A4 EP1553361A4 (fr) 2007-02-14

Family

ID=32040458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03756601A Withdrawn EP1553361A4 (fr) 2002-09-25 2003-09-22 Conditionneur d'air

Country Status (6)

Country Link
EP (1) EP1553361A4 (fr)
JP (1) JP4017483B2 (fr)
CN (1) CN1303375C (fr)
AU (1) AU2003299108A1 (fr)
HK (1) HK1084438A1 (fr)
WO (1) WO2004029519A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007144034A1 (fr) * 2006-06-13 2007-12-21 Gea Happel Klimatechnik Produktions- Und Servicegesellschaft Mbh Échappement d'un convecteur à soufflerie
EP2273208A1 (fr) * 2009-06-08 2011-01-12 Mitsubishi Electric Corporation Unité d'intérieur de climatiseur avec côntrole spécial des volets de sortie pour éviter la formation de rosée
JP2013204912A (ja) * 2012-03-28 2013-10-07 Daikin Industries Ltd 室内機
EP2568226A3 (fr) * 2011-08-18 2014-05-07 Mitsubishi Electric Corporation Unité intérieure d'appareil de climatisation d'air et appareil de climatisation d'air incluant une unité intérieure
EP2778552A1 (fr) * 2011-10-31 2014-09-17 Daikin Industries, Ltd. Unité de climatisation d'intérieur
EP2778551A1 (fr) * 2011-10-31 2014-09-17 Daikin Industries, Ltd. Unité de climatisation d'intérieur
EP2778550A1 (fr) * 2011-10-31 2014-09-17 Daikin Industries, Ltd. Unité de climatisation d'intérieur
EP2918931A4 (fr) * 2012-09-18 2016-08-24 Daikin Ind Ltd Unité intérieure de climatisation
EP2918930A4 (fr) * 2012-09-13 2016-10-26 Daikin Ind Ltd Unité intérieure de climatisation
FR3065791A1 (fr) * 2017-05-01 2018-11-02 Eric Convoi Nelson Deflecteur d'air, recyclant, pour climatiseurs de types mural et plafonnier (unites interieures).

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JP5365675B2 (ja) * 2011-09-30 2013-12-11 ダイキン工業株式会社 空調室内機
JP5834911B2 (ja) * 2011-12-28 2015-12-24 ダイキン工業株式会社 空調室内機
JP5338895B2 (ja) * 2011-12-28 2013-11-13 ダイキン工業株式会社 空調室内機
JP5403046B2 (ja) * 2011-12-28 2014-01-29 ダイキン工業株式会社 空調室内機
JP5783041B2 (ja) * 2011-12-28 2015-09-24 ダイキン工業株式会社 空調室内機
CN109210750A (zh) * 2018-08-30 2019-01-15 珠海格力电器股份有限公司 空调器的导风装置及控制方法
CN110017594B (zh) * 2019-05-16 2023-06-23 安徽扬子空调股份有限公司 一种可避免凝露的空调导风板出风结构以及空调导风板

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WO2007144034A1 (fr) * 2006-06-13 2007-12-21 Gea Happel Klimatechnik Produktions- Und Servicegesellschaft Mbh Échappement d'un convecteur à soufflerie
EP2273208A1 (fr) * 2009-06-08 2011-01-12 Mitsubishi Electric Corporation Unité d'intérieur de climatiseur avec côntrole spécial des volets de sortie pour éviter la formation de rosée
EP2568226A3 (fr) * 2011-08-18 2014-05-07 Mitsubishi Electric Corporation Unité intérieure d'appareil de climatisation d'air et appareil de climatisation d'air incluant une unité intérieure
AU2012330537B2 (en) * 2011-10-31 2015-08-20 Daikin Industries, Ltd. Air-conditioning indoor unit
AU2012333903B2 (en) * 2011-10-31 2015-09-10 Daikin Industries, Ltd. Air-conditioning indoor unit
EP2778551A1 (fr) * 2011-10-31 2014-09-17 Daikin Industries, Ltd. Unité de climatisation d'intérieur
EP2778550A1 (fr) * 2011-10-31 2014-09-17 Daikin Industries, Ltd. Unité de climatisation d'intérieur
EP2778550A4 (fr) * 2011-10-31 2014-11-19 Daikin Ind Ltd Unité de climatisation d'intérieur
EP2778551A4 (fr) * 2011-10-31 2015-01-07 Daikin Ind Ltd Unité de climatisation d'intérieur
EP2778552A4 (fr) * 2011-10-31 2015-01-21 Daikin Ind Ltd Unité de climatisation d'intérieur
US9644860B2 (en) 2011-10-31 2017-05-09 Daikin Industries, Ltd. Airflow direction control device of air-conditioning indoor unit
AU2012333901B2 (en) * 2011-10-31 2015-09-03 Daikin Industries, Ltd. Air-conditioning indoor unit
EP2778552A1 (fr) * 2011-10-31 2014-09-17 Daikin Industries, Ltd. Unité de climatisation d'intérieur
AU2012333903C1 (en) * 2011-10-31 2015-12-24 Daikin Industries, Ltd. Air-conditioning indoor unit
US9593864B2 (en) 2011-10-31 2017-03-14 Daikin Industries, Ltd. Airflow direction control device for air conditioning indoor unit
US9488381B2 (en) 2011-10-31 2016-11-08 Daikin Industries, Ltd. Air-conditioning indoor unit
JP2013204912A (ja) * 2012-03-28 2013-10-07 Daikin Industries Ltd 室内機
EP2918930A4 (fr) * 2012-09-13 2016-10-26 Daikin Ind Ltd Unité intérieure de climatisation
EP2918931A4 (fr) * 2012-09-18 2016-08-24 Daikin Ind Ltd Unité intérieure de climatisation
FR3065791A1 (fr) * 2017-05-01 2018-11-02 Eric Convoi Nelson Deflecteur d'air, recyclant, pour climatiseurs de types mural et plafonnier (unites interieures).

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EP1553361A4 (fr) 2007-02-14
JP2004116859A (ja) 2004-04-15
HK1084438A1 (en) 2006-07-28
AU2003299108A1 (en) 2004-04-19
CN1685179A (zh) 2005-10-19
CN1303375C (zh) 2007-03-07
WO2004029519A1 (fr) 2004-04-08
JP4017483B2 (ja) 2007-12-05

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