WO2023073768A1 - 冷凍サイクル装置の室外機 - Google Patents
冷凍サイクル装置の室外機 Download PDFInfo
- Publication number
- WO2023073768A1 WO2023073768A1 PCT/JP2021/039323 JP2021039323W WO2023073768A1 WO 2023073768 A1 WO2023073768 A1 WO 2023073768A1 JP 2021039323 W JP2021039323 W JP 2021039323W WO 2023073768 A1 WO2023073768 A1 WO 2023073768A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outdoor unit
- blower
- housing
- impeller
- refrigeration cycle
- Prior art date
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 72
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 230000003068 static effect Effects 0.000 abstract description 11
- 230000004048 modification Effects 0.000 description 15
- 238000012986 modification Methods 0.000 description 15
- 239000003507 refrigerant Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
-
- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
Definitions
- the present disclosure relates to an outdoor unit of a refrigeration cycle device.
- the fan is a centrifugal fan (sirocco fan)
- the air inlet is at least on the back side of the housing
- the air outlet is on the right side and left side of the housing.
- There is known one provided on one of the surface, the left and right side surfaces, and the top surface see, for example, Patent Document 1).
- the size of the air outlet of the centrifugal blower is smaller than the size of the housing of the outdoor unit, particularly the size of the air heat exchanger.
- the air volume is smaller than that of an outdoor unit of the same size equipped with a conventional propeller fan. Therefore, it is difficult to obtain a sufficient amount of air, particularly when the static pressure outside the outdoor unit is high. In addition, the air volume becomes small and it is difficult to recover the pressure sufficiently, which causes an increase in noise and a deterioration in input power.
- This disclosure has been made to solve such problems.
- the purpose is to suppress the increase in the size of the outdoor unit, to obtain a high air volume even when the static pressure outside the outdoor unit is high, and to achieve low noise and low input.
- the outdoor unit of the refrigeration cycle apparatus includes a machine room in which a compressor is housed, a heat exchanger separated from the machine room, and a blower arranged on the secondary side of the heat exchanger.
- the blower includes an impeller having a plurality of blades arranged in a circumferential direction around the rotation axis, two bell mouths serving as suction ports, and a discharge port. and a scroll casing in which the impeller is arranged, and a plurality of the discharge ports are present, and the plurality of discharge ports are connected to the discharge port of the casing.
- the sum of the widths of the outlets in a direction arranged on the outlet arrangement surface, parallel to the outlet arrangement surface, and horizontal with the housing installed is greater than the width of the blower chamber in the direction.
- the outdoor unit of the refrigeration cycle apparatus it is possible to obtain a high air volume even when the static pressure outside the outdoor unit is high while suppressing an increase in size, which in turn reduces noise.
- the effect is that the input can be reduced.
- FIG. 2 is a front view of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1 with the front panel removed;
- FIG. FIG. 2 is a perspective top view of the essential parts of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- Fig. 2 is a perspective side view of the main part of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- 2 is a front view of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- FIG. 2 is a front view of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- FIG. 3 is a plan view of an impeller of a blower included in the outdoor unit according to Embodiment 1.
- FIG. 3 is a cross-sectional view of a blower included in the outdoor unit according to Embodiment 1; 3 is a plan view of an impeller of a blower included in the outdoor unit according to Embodiment 1.
- FIG. FIG. 3 is a cross-sectional view of the impeller of the blower included in the outdoor unit according to Embodiment 1; 3 is a perspective view of an impeller of a blower included in the outdoor unit according to Embodiment 1.
- FIG. FIG. 7 is a perspective top view of a main part showing another example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- FIG. 5 is a top view showing another example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- FIG. 5 is a top view showing another example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- FIG. 6 is a top view of another example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1, with the top panel removed;
- FIG. 7 is a perspective front view of a main part showing another example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 1;
- FIG. 8 is a front view of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2 with the front panel removed;
- FIG. 7 is a cross-sectional view of an outdoor unit of a refrigeration cycle apparatus according to Embodiment 2;
- FIG. 8 is a front view of an outdoor unit of a refrigeration cycle apparatus according to Embodiment 2;
- FIG. 8 is a front view of an outdoor unit of a refrigeration cycle apparatus according to Embodiment 2;
- FIG. 11 is a front view of a modification of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2, with the front panel removed;
- FIG. 11 is a front view of a state in which a front panel is removed, showing a first modification of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2;
- FIG. 11 is a front view of the second example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2, with the front panel removed;
- FIG. 9 is a cross-sectional view showing a second modification of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2;
- FIG. 8 is a front view showing a second modification of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2;
- FIG. 8 is a front view showing a second modification of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2;
- FIG. 11 is a front view of a modification of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2, with the front panel removed;
- FIG. 8 is a front view showing a modification of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2;
- FIG. 11 is a perspective view of a blower included in a modified example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2;
- FIG. 9 is a cross-sectional view of a blower included in a modified example of the outdoor unit of the refrigeration cycle apparatus according to Embodiment 2;
- FIG. 1 is a front view of the outdoor unit of the refrigeration cycle apparatus with the front panel removed.
- FIG. 2 is a perspective top view of the essential parts of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 3 is a perspective side view of the essential parts of the outdoor unit of the refrigeration cycle apparatus.
- 4 and 5 are front views of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 6 is a plan view of an impeller of a blower provided in the outdoor unit.
- FIG. 7 is a cross-sectional view of a fan included in the outdoor unit.
- FIG. 8 is a plan view of an impeller of a blower provided in the outdoor unit.
- FIG. 1 is a front view of the outdoor unit of the refrigeration cycle apparatus with the front panel removed.
- FIG. 2 is a perspective top view of the essential parts of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 3 is a perspective side view of the essential parts of the outdoor unit of the refrigeration cycle apparatus.
- 4 and 5 are front views of the outdoor unit of the refrigeration
- FIG. 9 is a cross-sectional view of an impeller of a blower provided in the outdoor unit.
- FIG. 10 is a perspective view of an impeller of a blower provided in the outdoor unit.
- FIG. 11 is a perspective top view of essential parts showing another example of the outdoor unit of the refrigeration cycle apparatus.
- 12 and 13 are top views showing another example of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 14 is a top view of another example of the outdoor unit of the refrigeration cycle apparatus with the top panel removed.
- FIG. 15 is a perspective front view of essential parts showing another example of the outdoor unit of the refrigeration cycle apparatus.
- a refrigeration cycle apparatus includes an indoor unit and an outdoor unit.
- a heat exchanger is provided in each of the indoor unit and the outdoor unit.
- the heat exchanger of the indoor unit and the heat exchanger of the outdoor unit are connected by refrigerant pipes provided in a circulating manner.
- the refrigerant flowing in the refrigerant pipe circulates between the heat exchanger of the indoor unit and the heat exchanger of the outdoor unit, thereby the heat exchanger of the indoor unit and the heat exchanger of the outdoor unit. It works as a heat pump to transfer heat between them.
- the outdoor unit of the refrigeration cycle apparatus includes a housing 1, as shown in FIGS.
- the housing 1 has, for example, a rectangular parallelepiped outer shape. That is, in the illustrated configuration, the housing 1 has a front surface, a rear surface, a top surface, a bottom surface, and left and right side surfaces.
- a machine room 2 and a fan room 3 are formed in the housing 1 .
- the machine room 2 is arranged on one of the left and right sides of the housing 1 .
- the blower chamber 3 is arranged on the other left and right sides of the housing 1 .
- the machine room 2 and the fan room 3 are partitioned. Inside the machine room 2, a compressor and an electric component box (not shown) are accommodated.
- a heat exchanger 4 and a blower 100 are housed inside the blower chamber 3 .
- outdoor unit suction ports 5 are formed on the side and back of the portion of the housing 1 where the blower chamber 3 is arranged.
- a front panel 10 is provided in front of the portion of the housing 1 where the blower chamber 3 is arranged.
- An outdoor unit outlet 11 is formed in the front panel 10 .
- the inside of the blower room 3 forms an air passage leading from the outdoor unit inlet 5 to the outdoor unit outlet 11 .
- a grid-like grill 12 may be provided at the outdoor unit outlet 11 .
- the grille 12 may be attached to the front panel 10 or may be provided integrally with the front panel 10 .
- the heat exchanger 4 is arranged in an L shape in a top view from the side surface of the housing 1 where the outdoor unit suction port 5 is located to the rear surface in the fan chamber 3 .
- the blower 100 is arranged downstream of the heat exchanger 4 in the air passage inside the blower room 3 . In other words, the blower 100 is arranged on the secondary side of the heat exchanger 4 .
- blower room 3 As shown in FIGS. 1 and 3 to 5, in the configuration example described here, three blowers 100 are provided in the blower room 3.
- FIG. In this configuration example, three blowers 100 are arranged side by side in the vertical direction.
- Each blower 100 is a so-called double suction type centrifugal blower.
- Air blower 100 includes impeller 200 , scroll casing 110 , motor 101 and shaft 102 .
- the impeller 200 is a centrifugal fan for generating the airflow of the blower 100. As shown in FIG. 2 and the like, the impeller 200 is arranged inside the scroll casing 110 . Impeller 200 is rotatable about a rotation axis inside scroll casing 110 . As shown in FIG. 6, impeller 200 has a plurality of blades 210 . A plurality of blades 210 of impeller 200 are arranged in a circumferential direction around the rotation axis of impeller 200 .
- the scroll casing 110 rectifies the air blown out from the impeller 200.
- Scroll casing 110 has two side walls and a peripheral wall.
- the side walls of scroll casing 110 are provided on both sides of impeller 200 in the rotational axis direction of impeller 200 .
- a peripheral wall of scroll casing 110 is provided so as to surround impeller 200 from the radially outer side of impeller 200 .
- the two side walls are arranged to face each other via the peripheral wall.
- the scroll casing 110 has two bell mouths 111 formed therein.
- Two bell mouths 111 of the scroll casing 110 serve as suction ports for the blower 100 .
- the bellmouth 111 is provided on each of two side walls of the scroll casing 110 .
- the suction port formed by the bell mouth 111 has a circular shape around the rotation axis of the impeller 200 .
- the shape of the suction port is not limited to a circular shape, and may be other shapes such as an elliptical shape.
- the bellmouth 111 rectifies the gas sucked into the impeller 200 and causes it to flow into the suction port of the impeller 200 .
- the bell mouth 111 is formed such that the diameter of the opening gradually decreases from the outside to the inside of the scroll casing 110 . As a result, the air in the vicinity of the suction port smoothly flows along the bell mouth 111 and efficiently flows into the impeller 200 from the suction port.
- a discharge port 112 is formed in the scroll casing 110 .
- the discharge port 112 is an opening through which the airflow in the scroll casing 110 generated by the impeller 200 is discharged.
- the opening shape of the ejection port 112 is, for example, a rectangular shape. However, the opening shape of the ejection port 112 is not limited to a rectangular shape.
- the opening surface of discharge port 112 is arranged parallel to the rotation axis of impeller 200 .
- the peripheral wall of the scroll casing 110 guides the airflow generated by the impeller 200 to the discharge port 112 along the curved wall surface.
- a peripheral wall is a wall provided between side walls facing each other.
- the peripheral wall is, for example, arranged parallel to the rotation axis direction of the impeller 200 .
- the peripheral wall may be inclined with respect to the rotation axis direction of the impeller 200, and is not limited to the configuration in which it is arranged in parallel with the rotation axis direction.
- the peripheral wall of the scroll casing 110 is formed into a spiral-shaped curved surface when viewed from a direction parallel to the rotation axis of the impeller 200 .
- the spiral shape includes, for example, a logarithmic spiral, an Archimedean spiral, or a spiral shape based on an involute curve.
- the "rotating shaft of the impeller 200" may also be referred to as the "rotating shaft of the blower 100".
- the fan 100 configured as described above is a double-intake centrifugal fan that sucks air from both ends of the rotating shaft of the fan 100 and blows air in a direction perpendicular to the rotating shaft of the fan 100.
- the motor 101 and shaft 102 are shared. That is, in the configuration example described here, one motor 101 and one shaft 102 are provided for three blowers 100 .
- the motor 101 is arranged outside the scroll casing 110 of each blower 100 .
- the motor 101 is arranged above the three fans 100 arranged vertically.
- Shaft 102 transmits the rotational driving force of motor 101 to each impeller 200 of each blower 100 .
- Fans 100 are arranged such that the rotation shafts of impellers 200 of each fan 100 are aligned.
- Shaft 102 is provided along the respective rotation axis of impeller 200 of each blower 100 .
- the center of each impeller 200 of each blower 100 is fixed to the shaft 102 .
- the front panel 10 provided on the front surface of the housing 1 is formed with the outdoor unit outlet 11 .
- the outdoor unit outlets 11 are provided in the same number as the outlets 112 in accordance with the outlets 112 . That is, in the configuration example described here, the front panel 10 is formed with three outdoor unit outlets 11 .
- the position and size of each outdoor unit outlet 11 are adjusted according to the position and size of each outlet 112 . That is, when the front panel 10 is properly attached to the housing 1 , the respective outlets 112 are arranged at the respective outdoor unit outlets 11 .
- the plurality of outlets 112 are arranged at the outdoor unit outlet 11 of the front panel 10 .
- the front surface of the housing on which the front panel 10 is provided is the outlet arrangement surface.
- a plurality of ejection ports 112 are arranged on this ejection port arrangement surface.
- the suction port of each blower 100 is arranged so as to face the upper surface and the bottom surface of the housing 1 . That is, the rotating shaft of the blower 100 is arranged along the vertical direction.
- the width of the outlet 112 and the width of the blower chamber 3 in other words, the total width of the outlet 112 in the direction perpendicular to the rotating shaft of the blower 100 and parallel to the surface on which the outlet is arranged is the same as the width of the blower chamber 3 greater than the width of
- the direction parallel to the discharge port arrangement surface and horizontal with the housing 1 installed is the left-right direction. That is, the dimension A shown in FIG. 2 is the width of the ejection port 112 in a direction parallel to the ejection port arrangement surface and horizontal with the housing 1 installed.
- the dimension B shown in the figure is the width of the blower chamber 3 in the horizontal direction parallel to the outlet arrangement surface and with the housing 1 installed.
- dimensions A1, A2, and A3 shown in FIG. 1 are widths of the ejection port 112 in a direction parallel to the ejection port arrangement surface and horizontal with the housing 1 installed.
- the dimension B shown in the figure is the width of the blower chamber 3 in the horizontal direction parallel to the outlet arrangement surface and with the housing 1 installed.
- the total width of the plurality of outlets 112 is adjusted to be larger than the width of the fan chamber 3 . That is, for each dimension A1, A2, A3 and B, the relationship of the following formula (1) holds.
- the outdoor unit of the refrigeration cycle apparatus configured as described above, even when the static pressure outside the outdoor unit is high, the size of the outdoor unit does not increase. It is possible to obtain a large air volume, and as a result, it is possible to achieve low noise and low input.
- the rotation shaft of the blower 100 is arranged along the vertical direction. That is, the rotating shaft of the impeller 200 is arranged parallel to the above-described discharge port arrangement surface.
- the fan diameter of the impeller 200 should be larger than half the width of the blower chamber 3 in the direction perpendicular to the discharge port arrangement surface, that is, in the front-rear direction. By doing so, the air volume can be further increased, and further reduction in noise and input can be achieved.
- the fan 100 is a double-suction centrifugal fan.
- the blower 100 has an impeller 200 which is a centrifugal fan.
- the impeller 200 includes a main plate portion 201 , side plate portions 203 and a plurality of blades 210 .
- the main plate portion 201 is a disk-shaped member.
- a boss portion 202 is provided at the center of the main plate portion 201 .
- a hole through which the shaft 102 is passed is formed in the center of the boss portion 202 .
- the plurality of blades 210 are arranged radially in the circumferential direction of the main plate portion 201 at the peripheral portion of the main plate portion 201 . Blades 210 are provided on both plate surfaces of main plate portion 201 .
- Each blade 210 has one end connected to the main plate portion 201 and the other end connected to the side plate portion 203 . That is, each of the blades 210 is arranged between the main plate portion 201 and the side plate portion 203 .
- the plurality of blades 210 are arranged at regular intervals in the circumferential direction of the main plate portion 201 .
- the side plate portion 203 is an annular member.
- the side plate portion 203 is fixed to the end portion of the plurality of blades 210 on the side opposite to the main plate portion 201 and on the outer peripheral side.
- the side plate portions 203 are provided on both plate surface sides of the main plate portion 201 respectively.
- the impeller 200 is driven to rotate around the rotation axis by being driven by the motor 101 .
- gas outside blower 100 is sucked through a suction port formed in a bell mouth of scroll casing 110 .
- the air sucked into the space surrounded by the main plate portion 201 and the plurality of blades 210 passes through the space between the adjacent blades 210 and the impeller 200. It is delivered radially outward.
- Each of the plurality of blades 210 of the impeller 200 has a turbo blade portion 211 and a sirocco blade portion 212 .
- the turbo blade portion 211 is provided on the inner peripheral side of the sirocco blade portion 212 in the radial direction about the rotation axis of the impeller 200 .
- the sirocco blade portion 212 is provided on the outer peripheral side of the turbo blade portion 211 in the radial direction about the rotation axis of the impeller 200 .
- the turbo blade portion 211 constitutes a trailing blade having an exit angle of 90 degrees or less.
- the sirocco wing 212 constitutes a forward vane with an exit angle greater than 90 degrees.
- the outlet angle is the angle formed by the center line of the blade 210 and the tangent line of the outer diameter circle of the impeller 200 at the intersection of the outer diameter circle of the impeller 200 and the center line of the blade 210 .
- a boundary between the turbo blade portion 211 and the sirocco blade portion 212 is indicated by a dashed line in FIG.
- Sirocco wings 212 may not necessarily be provided. However, by providing the sirocco blades 212, the air volume of the blower 100 can be increased.
- each of the plurality of blades 210 is formed such that the height from the plate surface of the main plate portion 201 becomes lower toward the inner peripheral side from the inner peripheral end portion 204 toward the inner peripheral side. ing.
- the turbo blade portion 211 includes this inner peripheral end portion 204 . Note that the position of the inner peripheral end portion 204 is indicated by a dashed line in FIG.
- the turbo blade portion 211 is exposed from the suction port of the fan 100.
- the pressure recovery performance of the blower 100 can be improved by the turbo blade portion 211, and further reduction of the input power can be achieved.
- the shape of the heat exchanger 4 is not limited to an L shape when viewed from above.
- the shape of the heat exchanger 4 may be U-shaped or C-shaped when viewed from above.
- a flat plate-shaped heat exchanger 4 may also be used.
- a projecting portion 113 projecting toward the heat exchanger 4 is provided at a portion of the scroll casing 110 near the main plate portion 201 of the impeller 200. is provided. Therefore, the distance C between the portion of the scroll casing 110 near the main plate portion 201 of the impeller 200 , that is, the protrusion 113 and the heat exchanger 4 is equal to the distance C between the portion of the scroll casing 110 near the side plate portion 203 of the impeller 200 and the heat exchanger 4 .
- the airflow that has passed through the heat exchanger 4 is smoothly guided from a portion near the main plate portion 201 of the impeller 200 to a portion near the side plate portion 203 along the outer shape of the scroll casing 110. It flows into a suction port formed in the bell mouth of scroll casing 110 . Therefore, it is possible to improve the inflow of airflow from the heat exchanger 4 to the blower 100, reduce the pressure loss, and further reduce the input power.
- the tip of the projecting portion 113 of the scroll casing 110 is preferably arc-shaped. By doing so, the airflow that has passed through the heat exchanger 4 can be guided more smoothly, and the inflow of the airflow from the heat exchanger 4 to the blower 100 can be further improved.
- the discharge port arrangement surface was the front surface of the housing 1 .
- the discharge port arrangement surface is not limited to the front surface of the housing 1 and may be any surface of the housing 1 .
- FIGS. 12 to 15 show configuration examples in which the discharge port arrangement surface is the upper surface of the housing 1.
- a top panel 20 is provided on the upper surface of the portion of the housing 1 where the blower chamber 3 is arranged.
- An outdoor unit outlet 11 is formed in the top panel 20 .
- a grid-like grill 12 may be provided at the outdoor unit outlet 11 .
- the grille 12 may be attached to the top panel 20 or may be provided integrally with the top panel 20 .
- the top panel 20 is provided with the same number of outlets 11 for the outdoor unit as the outlets 112 .
- three fans 100 are provided in the fan chamber 3, and each fan 100 has one discharge port 112, so that the outdoor unit as a whole has a total of three discharge ports 112. .
- the top panel 20 is formed with three outdoor unit outlets 11 .
- the position and size of each outdoor unit outlet 11 are adjusted according to the position and size of each outlet 112 . That is, when the top panel 20 is properly attached to the housing 1 , the respective outlets 112 are arranged at the respective outdoor unit outlets 11 .
- the plurality of outlets 112 are arranged at the outdoor unit outlet 11 of the top panel 20 .
- the upper surface of the housing on which the top panel 20 is provided is the discharge port arrangement surface.
- a plurality of ejection ports 112 are arranged on this ejection port arrangement surface.
- the suction port of each blower 100 is arranged to face the front and back directions of the housing 1 . That is, the rotating shaft of the blower 100 is arranged along the front-rear direction.
- the total width of the plurality of discharge ports 112 in the direction parallel to the discharge port arrangement surface and horizontal with the housing 1 installed is greater than the width of the blower chamber 3 in the same direction.
- at least the horizontal direction is included in the direction parallel to the discharge port arrangement surface and horizontal with the housing 1 installed. Therefore, also in this example, in other words, the total width of the outlets 112 in the direction perpendicular to the rotating shaft of the fan 100 and parallel to the outlet arrangement surface is greater than the width of the fan chamber 3 in the same direction.
- FIG. 16 is a front view of the outdoor unit of the refrigeration cycle apparatus with the front panel removed.
- FIG. 17 is a cross-sectional view of the outdoor unit of the refrigeration cycle device.
- 18 and 19 are front views of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 20 is a front view of a modification of the outdoor unit of the refrigeration cycle apparatus with the front panel removed.
- FIG. 21 is a front view of a first modification of the outdoor unit of the refrigeration cycle apparatus with the front panel removed.
- FIG. 22 is a front view of a second alternative example of the outdoor unit of the refrigeration cycle apparatus with the front panel removed.
- FIG. 23 is a cross-sectional view showing a second alternative example of the outdoor unit of the refrigeration cycle apparatus.
- 24 and 25 are front views showing a second alternative example of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 26 is a front view of a modification of the outdoor unit of the refrigeration cycle apparatus with the front panel removed.
- FIG. 27 is a front view showing a modification of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 28 is a perspective view of a blower included in a modification of the outdoor unit of the refrigeration cycle apparatus.
- FIG. 29 is a cross-sectional view of a blower included in a modification of the outdoor unit of the refrigeration cycle apparatus.
- each blower of the outdoor unit was provided with one discharge port.
- Embodiment 2 described here two or more outlets are provided in one blower.
- the outdoor unit of the refrigeration cycle apparatus according to the second embodiment will be described below, focusing on differences from the first embodiment.
- the configuration whose description is omitted is basically the same as that of the first embodiment.
- the same reference numerals as those used in the description of the first embodiment are attached to the same or corresponding configurations as those of the first embodiment.
- each of the two fans 100 has two outlets 112, so that the outdoor unit as a whole has four outlets 112 in total.
- a front panel 10 is provided on the front surface of the portion of the housing 1 where the blower chamber 3 is arranged.
- An outdoor unit outlet 11 is formed in the front panel 10 .
- a grid-like grill 12 may be provided at the outdoor unit outlet 11 .
- the front panel 10 is provided with the same number of outlets 11 for the outdoor unit as the outlets 112 .
- the outdoor unit as a whole has a total of four outlets 112 .
- the front panel 10 is formed with four outdoor unit outlets 11 .
- the position and size of each outdoor unit outlet 11 are adjusted according to the position and size of each outlet 112 . That is, when the front panel 10 is properly attached to the housing 1 , the respective outlets 112 are arranged at the respective outdoor unit outlets 11 .
- the plurality of outlets 112 are arranged at the outdoor unit outlet 11 of the front panel 10 .
- the front surface of the housing on which the front panel 10 is provided is the discharge port arrangement surface.
- a plurality of ejection ports 112 are arranged on this ejection port arrangement surface.
- the suction port of each blower 100 is arranged to face the left and right side surfaces of the housing 1 . That is, the rotating shaft of the blower 100 is arranged along the left-right direction.
- the total width of the outlets 112 in the direction parallel to the outlet arrangement surface and horizontal with the housing 1 installed is greater than the width of the fan chamber 3 in the same direction.
- the direction parallel to the discharge port arrangement surface and horizontal with the housing 1 installed is the left-right direction.
- the blower room 3 may be provided on the upper side of the housing 1 and the machine room 2 may be provided on the lower side of the housing 1 .
- the rotation shaft of the blower 100 is arranged along the left-right direction. That is, the rotating shaft of the impeller 200 is arranged parallel to the above-described discharge port arrangement surface.
- the fan diameter of the impeller 200 should be larger than half the width of the blower chamber 3 in the direction perpendicular to the discharge port arrangement surface, that is, in the front-rear direction. By doing so, the air volume can be further increased, and further reduction in noise and input can be achieved.
- FIG. 21 shows the configuration of a first alternative example of the outdoor unit of the refrigeration cycle apparatus according to this embodiment.
- two fans 100 are arranged vertically in the fan chamber 3 .
- One of the two blowers 100 is illustrated in FIG.
- Two discharge ports 112 are formed in each scroll casing 110 of the blower 100 .
- each of the two fans 100 has two outlets 112, so that the outdoor unit as a whole has four outlets 112 in total.
- a plurality of outlets 112 are arranged at an outdoor unit outlet formed in a front panel (not shown).
- the front surface of the housing on which the front panel is provided is the outlet arrangement surface.
- a plurality of ejection ports 112 are arranged on this ejection port arrangement surface.
- the suction port of each blower 100 is arranged so as to face the upper surface and the bottom surface of the housing 1 . That is, the rotating shaft of the blower 100 is arranged along the vertical direction.
- the total width of the outlets 112 in the direction parallel to the outlet arrangement surface and horizontal with the housing 1 installed is greater than the width of the fan chamber 3 in the same direction.
- the direction parallel to the discharge port arrangement surface and horizontal with the housing 1 installed is the left-right direction.
- FIGS. 22 to 25 show a configuration of a second alternative example of the outdoor unit of the refrigeration cycle apparatus according to this embodiment.
- one blower 100 is provided in the blower chamber 3 .
- Two discharge ports 112 are formed in the scroll casing 110 of the blower 100 .
- one air blower 100 has two outlets 112, so that the outdoor unit as a whole has two outlets 112 in total.
- a front panel 10 is provided on the front surface of the portion of the housing 1 where the blower chamber 3 is arranged.
- An outdoor unit outlet 11 is formed in the front panel 10 .
- a grid-like grill 12 may be provided at the outdoor unit outlet 11 .
- the front panel 10 is provided with the same number of outlets 11 for the outdoor unit as the outlets 112 .
- the outdoor unit as a whole has a total of two outlets 112 .
- the front panel 10 is formed with two outdoor unit outlets 11 .
- the position and size of each outdoor unit outlet 11 are adjusted according to the position and size of each outlet 112 . That is, when the front panel 10 is properly attached to the housing 1 , the respective outlets 112 are arranged at the respective outdoor unit outlets 11 .
- the plurality of outlets 112 are arranged at the outdoor unit outlet 11 of the front panel 10 .
- the front surface of the housing on which the front panel 10 is provided is the discharge port arrangement surface.
- a plurality of ejection ports 112 are arranged on this ejection port arrangement surface.
- the suction port of each blower 100 is arranged to face the front and back directions of the housing 1 . That is, the rotating shaft of the blower 100 is arranged along the front-rear direction.
- the total width of the outlets 112 in the direction parallel to the outlet arrangement surface and horizontal with the housing 1 installed is greater than the width of the fan chamber 3 in the same direction.
- the direction parallel to the discharge port arrangement surface and horizontal with the housing 1 installed is the left-right direction.
- Figs. 26 to 29 show the configuration of a second modified example of the outdoor unit of the refrigeration cycle apparatus according to this embodiment.
- two or more outlets 112 of one blower 100 are radially arranged when viewed from the front side of the housing 1 .
- one blower 100 is provided with six outlets 112 .
- the inner peripheral side of each discharge port 112 is arcuate around the rotating shaft of fan 100 .
- the inner peripheral side of each discharge port 112 has an arc shape formed by a part of the concentric circle of the suction port of the blower 100 .
- the outer peripheral side of each discharge port 112 is arcuate, which is a part of an ellipse centered on the rotation axis of fan 100 .
- the front panel 10 is provided with the same number of outdoor unit outlets 11 as the outlets 112 .
- the outdoor unit as a whole has a total of six outlets 112 . Therefore, the front panel 10 is formed with six outdoor unit outlets 11 .
- the position and size of each outdoor unit outlet 11 are adjusted according to the position and size of each outlet 112 . That is, when the front panel 10 is properly attached to the housing 1 , the respective outlets 112 are arranged at the respective outdoor unit outlets 11 .
- the plurality of outlets 112 are arranged at the outdoor unit outlet 11 of the front panel 10 .
- the front surface of the housing on which the front panel 10 is provided is the discharge port arrangement surface.
- a plurality of ejection ports 112 are arranged on this ejection port arrangement surface.
- the suction port of each blower 100 is arranged to face the front and back directions of the housing 1 . That is, the rotating shaft of the blower 100 is arranged along the front-rear direction.
- the total width of the outlets 112 in the direction parallel to the outlet arrangement surface and horizontal with the housing 1 installed is greater than the width of the fan chamber 3 in the same direction.
- the direction parallel to the discharge port arrangement surface and horizontal with the housing 1 installed is the left-right direction.
- the present disclosure can be used for an outdoor unit of a refrigeration cycle device having a double-suction centrifugal fan in the fan chamber of the housing.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
図1から図15を参照しながら、本開示の実施の形態1について説明する。図1は冷凍サイクル装置の室外機のフロントパネルを外した状態の正面図である。図2は冷凍サイクル装置の室外機の要部を透視した上面図である。図3は冷凍サイクル装置の室外機の要部を透視した側面図である。図4及び図5は冷凍サイクル装置の室外機の正面図である。図6は室外機が備える送風機の羽根車の平面図である。図7は室外機が備える送風機の断面図である。図8は室外機が備える送風機の羽根車の平面図である。図9は室外機が備える送風機の羽根車の断面図である。図10は室外機が備える送風機の羽根車の斜視図である。図11は冷凍サイクル装置の室外機の別例を示す要部を透視した上面図である。図12及び図13は冷凍サイクル装置の室外機の別例を示す上面図である。図14は冷凍サイクル装置の室外機の別例を示すトップパネルを外した状態の上面図である。図15は冷凍サイクル装置の室外機の別例を示す要部を透視した正面図である。
図16から図29を参照しながら、本開示の実施の形態2について説明する。図16は冷凍サイクル装置の室外機のフロントパネルを外した状態の正面図である。図17は冷凍サイクル装置の室外機の断面図である。図18及び図19は冷凍サイクル装置の室外機の正面図である。図20は冷凍サイクル装置の室外機の変形例を示すフロントパネルを外した状態の正面図である。図21は冷凍サイクル装置の室外機の第1の別例を示すフロントパネルを外した状態の正面図である。図22は冷凍サイクル装置の室外機の第2の別例を示すフロントパネルを外した状態の正面図である。図23は冷凍サイクル装置の室外機の第2の別例を示す断面図である。図24及び図25は冷凍サイクル装置の室外機の第2の別例を示す正面図である。図26は冷凍サイクル装置の室外機の変形例を示すフロントパネルを外した状態の正面図である。図27は冷凍サイクル装置の室外機の変形例を示す正面図である。図28は冷凍サイクル装置の室外機の変形例が備える送風機の斜視図である。図29は冷凍サイクル装置の室外機の変形例が備える送風機の断面図である。
2 機械室
3 送風機室
4 熱交換器
5 室外機吸込口
10 フロントパネル
11 室外機吹出口
12 グリル
20 トップパネル
100 送風機
101 モータ
102 シャフト
110 スクロールケーシング
111 ベルマウス
112 吐出口
113 突出部
200 羽根車
201 主板部
202 ボス部
203 側板部
204 内周端部
210 羽根
211 ターボ翼部
212 シロッコ翼部
Claims (10)
- 内部に圧縮機が収容された機械室と、前記機械室と区画され内部に熱交換器及び前記熱交換器の2次側に配置された送風機が収容された送風機室とが形成された筐体を備え、
前記送風機は、
回転軸を中心とする周方向に配列した複数の羽根を有する羽根車と、
吸込口となる2つのベルマウスと吐出口とが形成され、内部に前記羽根車が配置されたスクロールケーシングと、を備えた両吸込型の遠心送風機であり、
前記吐出口は複数存在し、
複数の前記吐出口は、前記筐体の吐出口配置面に配置され、
前記吐出口配置面に平行かつ前記筐体を設置した状態で水平な方向における複数の前記吐出口の幅の合計は、前記方向における前記送風機室の幅よりも大きい冷凍サイクル装置の室外機。 - 前記羽根車の複数の前記羽根のそれぞれは、出口角が90度以下の角度に形成された後向羽根を構成するターボ翼部を有し、
前記送風機を前記回転軸に平行な方向から見たときに、前記ターボ翼部が前記吸込口から露出する請求項1に記載の冷凍サイクル装置の室外機。 - 前記羽根車の複数の前記羽根のそれぞれは、前記回転軸を中心とする径方向において前記ターボ翼部よりも外周側に設けられ、出口角が90度より大きい角度に形成された前向羽根を構成するシロッコ翼部をさらに有する請求項2に記載の冷凍サイクル装置の室外機。
- 1つの前記送風機は、2つ以上の前記吐出口を有し、
前記吐出口配置面は、前記筐体の正面であり、
前記送風機の前記吸込口は、前記筐体の上面及び底面方向に向いて配置される請求項1から請求項3のいずれか一項に記載の冷凍サイクル装置の室外機。 - 1つの前記送風機は、2つ以上の前記吐出口を有し、
前記吐出口配置面は、前記筐体の正面であり、
前記送風機の前記吸込口は、前記筐体の左右両側面方向に向いて配置される請求項1から請求項3のいずれか一項に記載の冷凍サイクル装置の室外機。 - 前記羽根車の前記回転軸は、前記吐出口配置面に平行に配置され、
前記羽根車のファン径は、前記吐出口配置面に垂直な方向における前記送風機室の幅の2分の1より大きい請求項1から請求項5のいずれか一項に記載の冷凍サイクル装置の室外機。 - 1つの前記送風機は、2つ以上の前記吐出口を有し、
前記吐出口配置面は、前記筐体の正面であり、
前記送風機の前記吸込口は、前記筐体の正面及び背面方向に向いて配置される請求項1から請求項3のいずれか一項に記載の冷凍サイクル装置の室外機。 - 1つの前記送風機の2つ以上の前記吐出口は、前記筐体の正面側から見て放射状に配置される請求項7に記載の冷凍サイクル装置の室外機。
- 前記スクロールケーシングの前記羽根車の主板部に近い箇所と前記熱交換器との距離は、前記スクロールケーシングの前記羽根車の側板部に近い箇所と前記熱交換器との距離よりも狭い請求項1から請求項8のいずれか一項に記載の冷凍サイクル装置の室外機。
- 前記スクロールケーシングの前記羽根車の前記主板部に近い箇所は、前記熱交換器に向かって突出した突出部を有し、前記突出部の先端が円弧形状である請求項9に記載の冷凍サイクル装置の室外機。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180103225.8A CN118103637A (zh) | 2021-10-25 | 2021-10-25 | 制冷循环装置的室外机 |
JP2023555896A JPWO2023073768A1 (ja) | 2021-10-25 | 2021-10-25 | |
PCT/JP2021/039323 WO2023073768A1 (ja) | 2021-10-25 | 2021-10-25 | 冷凍サイクル装置の室外機 |
EP21962318.8A EP4425060A1 (en) | 2021-10-25 | 2021-10-25 | Outdoor unit of refrigeration cycle device |
TW111130219A TWI840912B (zh) | 2021-10-25 | 2022-08-11 | 冷凍循環裝置的室外機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2021/039323 WO2023073768A1 (ja) | 2021-10-25 | 2021-10-25 | 冷凍サイクル装置の室外機 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023073768A1 true WO2023073768A1 (ja) | 2023-05-04 |
Family
ID=86157507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/039323 WO2023073768A1 (ja) | 2021-10-25 | 2021-10-25 | 冷凍サイクル装置の室外機 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4425060A1 (ja) |
JP (1) | JPWO2023073768A1 (ja) |
CN (1) | CN118103637A (ja) |
TW (1) | TWI840912B (ja) |
WO (1) | WO2023073768A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10122602A (ja) * | 1996-10-15 | 1998-05-15 | Daikin Ind Ltd | 空気調和機用の室外機ユニット |
WO2020202420A1 (ja) * | 2019-04-01 | 2020-10-08 | 三菱電機株式会社 | 遠心送風機、送風装置、空気調和装置及び冷凍サイクル装置 |
JP2020169788A (ja) * | 2019-04-05 | 2020-10-15 | ダイキン工業株式会社 | ヒートポンプ装置 |
WO2021186676A1 (ja) * | 2020-03-19 | 2021-09-23 | 三菱電機株式会社 | 羽根車、多翼送風機、及び空気調和装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5805598B2 (ja) * | 2012-09-12 | 2015-11-04 | 三菱電機株式会社 | 冷凍サイクル装置 |
-
2021
- 2021-10-25 EP EP21962318.8A patent/EP4425060A1/en active Pending
- 2021-10-25 CN CN202180103225.8A patent/CN118103637A/zh active Pending
- 2021-10-25 JP JP2023555896A patent/JPWO2023073768A1/ja active Pending
- 2021-10-25 WO PCT/JP2021/039323 patent/WO2023073768A1/ja active Application Filing
-
2022
- 2022-08-11 TW TW111130219A patent/TWI840912B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10122602A (ja) * | 1996-10-15 | 1998-05-15 | Daikin Ind Ltd | 空気調和機用の室外機ユニット |
WO2020202420A1 (ja) * | 2019-04-01 | 2020-10-08 | 三菱電機株式会社 | 遠心送風機、送風装置、空気調和装置及び冷凍サイクル装置 |
JP2020169788A (ja) * | 2019-04-05 | 2020-10-15 | ダイキン工業株式会社 | ヒートポンプ装置 |
WO2021186676A1 (ja) * | 2020-03-19 | 2021-09-23 | 三菱電機株式会社 | 羽根車、多翼送風機、及び空気調和装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2023073768A1 (ja) | 2023-05-04 |
TW202317922A (zh) | 2023-05-01 |
EP4425060A1 (en) | 2024-09-04 |
TWI840912B (zh) | 2024-05-01 |
CN118103637A (zh) | 2024-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100934556B1 (ko) | 원심 팬 및 이것을 이용한 공기 조화기 | |
CN111279085A (zh) | 离心送风机、送风装置、空调装置以及制冷循环装置 | |
TWI807298B (zh) | 葉輪、離心風扇以及空氣調和裝置 | |
CN113710899A (zh) | 叶轮、多翼送风机及空调装置 | |
TW200530539A (en) | Integral air conditioner | |
CN112352108B (zh) | 多叶片送风机以及空调装置 | |
KR20080054153A (ko) | 터보팬 및 이를 구비하는 공기조화기 | |
CN114930034A (zh) | 离心送风机及空气调节装置 | |
WO2023073768A1 (ja) | 冷凍サイクル装置の室外機 | |
TWI794779B (zh) | 空調裝置 | |
US20230323892A1 (en) | Centrifugal air-sending device and air-conditioning apparatus | |
JP2007285164A (ja) | シロッコファン及び空気調和機 | |
WO2024122026A1 (ja) | 冷凍サイクル装置の室外機 | |
WO2024038506A1 (ja) | 冷凍サイクル装置 | |
WO2024189723A1 (ja) | 冷凍サイクル装置の室外機 | |
CN109891101B (zh) | 螺旋桨风扇、室外机和制冷循环装置 | |
JP2020173090A (ja) | ヒートポンプ装置 | |
WO2024214327A1 (ja) | 遠心送風機、空気調和機及び冷凍サイクル装置 | |
WO2021049536A1 (ja) | 送風ファン | |
WO2023084652A1 (ja) | クロスフローファン、送風装置及び冷凍サイクル装置 | |
TW202436799A (zh) | 冷凍循環裝置的室外機 | |
JP7204865B2 (ja) | 多翼送風機、及び空気調和装置 | |
WO2023089658A1 (ja) | クロスフローファン | |
JP7493609B2 (ja) | 遠心送風機及び空気調和装置 | |
EP4400777A1 (en) | Ceiling-embedded air conditioner |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21962318 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023555896 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18684031 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180103225.8 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202427031241 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2021962318 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021962318 Country of ref document: EP Effective date: 20240527 |