CN111442372A - Machine and air conditioner in wind wheel subassembly, air conditioning - Google Patents
Machine and air conditioner in wind wheel subassembly, air conditioning Download PDFInfo
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- CN111442372A CN111442372A CN202010411146.0A CN202010411146A CN111442372A CN 111442372 A CN111442372 A CN 111442372A CN 202010411146 A CN202010411146 A CN 202010411146A CN 111442372 A CN111442372 A CN 111442372A
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- wind
- air
- wind wheel
- hub
- fan blade
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a wind wheel assembly, an air-conditioning indoor unit and an air conditioner, wherein the wind wheel assembly comprises a first wind wheel and a second wind wheel, the first wind wheel comprises a first hub, a first wind barrel arranged around the first hub at intervals, a first fan blade connected between the first hub and the first wind barrel, and a second fan blade arranged on the outer peripheral surface of the first wind barrel, and the bending direction of the first fan blade is the same as that of the second fan blade. The second wind wheel comprises a second hub and third fan blades arranged on the second hub, the bending direction of the third fan blades is opposite to that of the first fan blades, and the second hub is located on one axial side of the first hub. According to the technical scheme, the air supply distance of the air wheel assembly can be increased.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air wheel assembly, an air conditioner indoor unit and an air conditioner.
Background
At present, most of conventional air conditioner indoor units adopt a cross-flow wind wheel, a centrifugal wind wheel or an axial-flow wind wheel as an air driving component, so that air flow passing through a heat exchanger can smoothly reach the indoor space. However, such an air supply method is difficult to deliver hot air flow or cold air flow to a remote location, and the air supply distance is short.
Disclosure of Invention
The invention mainly aims to provide an air wheel component, aiming at improving the air supply distance.
In order to achieve the above object, the present invention provides a wind wheel assembly, including:
the first wind wheel comprises a first hub, first wind cylinders arranged around the first hub at intervals, first wind blades connected between the first hub and the first wind cylinders, and second wind blades arranged on the outer peripheral surfaces of the first wind cylinders, and the bending direction of the first wind blades is the same as that of the second wind blades; and the number of the first and second groups,
and the second wind wheel comprises a second hub and third fan blades arranged on the second hub, the bending direction of the third fan blades is opposite to that of the first fan blades, and the second hub is positioned on one axial side of the first hub.
Optionally, the first air duct portion protrudes laterally from the first fan blade, and the third fan blade is disposed in the protruding portion of the first air duct.
Optionally, in an axial direction of the first hub, the second fan blade has an offset closer to the third fan blade than the first fan blade.
Optionally, the second wind wheel further includes a second wind barrel disposed around the second hub at intervals, the third fan blade is connected between the second hub and the second wind barrel, and the second wind barrel is the same as the first wind barrel in outer diameter.
Optionally, the number of the second fan blades is greater than that of the first fan blades.
Optionally, a ratio of any two of the number of the first fan blades, the number of the second fan blades, and the number of the third fan blades is a non-integer.
Optionally, the number of the first fan blades, the number of the second fan blades, and the number of the third fan blades are odd numbers.
Optionally, the outer diameters of the first hub and the second hub are the same, and the ratio of the distance from the outer edge of the second fan blade to the outer peripheral surface of the first air duct to the distance from the outer edge of the second fan blade to the outer peripheral surface of the first hub is greater than or equal to 0.15 and less than or equal to 0.75.
The invention also provides an air-conditioning indoor unit, which comprises a first motor, a second motor and an air wheel assembly, wherein the air wheel assembly comprises a first air wheel and a second air wheel, the first air wheel comprises a first hub, first air ducts arranged around the first hub at intervals, first fan blades connected between the first hub and the first air ducts, and second fan blades arranged on the peripheral surface of the first air duct, and the bending direction of the first fan blades is the same as that of the second fan blades. The second wind wheel comprises a second hub and third fan blades arranged on the second hub, the bending direction of the third fan blades is opposite to that of the first fan blades, and the second hub is located on one axial side of the first hub. The first wind wheel is arranged on a rotating shaft of the first motor, the second wind wheel is arranged on a rotating shaft of the second motor, and the air supply direction of the first wind wheel is the same as that of the second wind wheel.
Optionally, the air-conditioning indoor unit comprises an outer shell, an inner shell arranged in the outer shell, and a heat exchanger arranged in the inner shell, wherein the outer shell is provided with a first air inlet and a first air outlet, the inner shell is provided with a second air inlet and a second air outlet, and the heat exchanger is located between the second air inlet and the second air outlet; the wind wheel assembly is arranged at the second air outlet, the first fan blade and the third fan blade of the wind wheel assembly are used for enabling air flow to flow into the inner shell from the second air inlet and blow to the first air outlet from the second air outlet, and the second fan blade of the wind wheel assembly is used for enabling air flow to flow into a space between the outer shell and the inner shell from the first air inlet and blow to the first air outlet.
Optionally, the outer shell has an opening opposite to the first air outlet, the first air inlet is located between the first air outlet and the opening, and the inner shell has an air inlet end of the second air inlet located at the opening.
The invention also provides an air conditioner, which comprises an air conditioner indoor unit, wherein the air conditioner indoor unit comprises a first motor, a second motor and an air wheel assembly, the air wheel assembly comprises a first air wheel and a second air wheel, the first air wheel comprises a first hub, a first air duct arranged around the first hub at intervals, a first fan blade connected between the first hub and the first air duct and a second fan blade arranged on the outer peripheral surface of the first air duct, and the bending direction of the first fan blade is the same as that of the second fan blade. The second wind wheel comprises a second hub and third fan blades arranged on the second hub, the bending direction of the third fan blades is opposite to that of the first fan blades, and the second hub is located on one axial side of the first hub. The first wind wheel is arranged on a rotating shaft of the first motor, the second wind wheel is arranged on a rotating shaft of the second motor, and the air supply direction of the first wind wheel is the same as that of the second wind wheel.
According to the technical scheme, the first fan blade is arranged in the first air duct of the first wind wheel, the second fan blade is arranged on the outer peripheral surface of the first air duct, the bending direction of the first fan blade is the same as that of the second fan blade, the second wind wheel is arranged on one axial side of the first wind wheel, and the bending direction of the third fan blade of the second wind wheel is opposite to that of the first fan blade of the first wind wheel. So when the rotation direction with the second wind wheel is opposite with the rotation direction of first wind wheel, can make the air supply direction of second wind wheel the same with the air supply direction of first wind wheel to can increase air supply wind pressure through second wind wheel and first wind wheel, promote the air supply distance. When the first wind wheel rotates, the first fan blade and the second fan blade of the first wind wheel can respectively blow out a jet of airflow, and the airflow blown out by the second fan blade can wrap the airflow blown out by the first fan blade and flow towards the same direction. Therefore, when the wind wheel assembly is installed on the indoor unit of the air conditioner, cold air flow or hot air flow passing through the heat exchanger can be sucked through the first fan blade, and after the cold air flow or the hot air flow is blown out of the first fan blade and the second wind wheel, the air flow blown out of the second fan blade can wrap the cold air flow or the hot air flow blown out of the first fan blade for conveying, so that the loss of the cold air flow or the hot air flow in the conveying process can be reduced, and the conveying distance of the cold air flow or the hot air flow is longer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a cut-away schematic view of one embodiment of a wind wheel assembly of the present invention;
FIG. 2 is a schematic diagram of a first wind turbine of FIG. 1;
FIG. 3 is a schematic view of the first wind rotor of FIG. 2 from another perspective;
FIG. 4 is a schematic diagram of a second wind wheel of FIG. 1;
FIG. 5 is a cut-away schematic view of another embodiment of a wind wheel assembly of the present invention;
FIG. 6 is a schematic diagram of the first wind wheel of FIG. 5;
FIG. 7 is a schematic diagram of the second wind wheel of FIG. 5;
FIG. 8 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 9 is a schematic structural view of the air conditioning indoor unit of fig. 8 from another perspective;
fig. 10 is an exploded view of the air conditioning indoor unit of fig. 8;
fig. 11 is a sectional view of the air conditioning indoor unit of fig. 8;
fig. 12 is a sectional view schematically showing another embodiment of an indoor unit of an air conditioner according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Indoor unit of |
130 | |
| 110 | |
131 | |
| 111 | |
132 | |
| 112 | |
140 | |
| 113 | |
141 | |
| 114 | |
142 | |
| 120 | |
150 | |
| 121 | |
160 | Second |
| 122 | |
170 | |
| 123 | Second air duct |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an air wheel component which is used for an air conditioner, wherein the air conditioner can be an integrated air conditioner, a split air conditioner or a courtyard machine and the like. When the air wheel component is used for the split air conditioner, the air wheel component is arranged on the indoor unit of the air conditioner.
In an embodiment of the present invention, please refer to fig. 1 to 4 in combination, the wind wheel assembly includes a first wind wheel 110, the first wind wheel 110 includes a first hub 111, a first wind barrel 113 disposed around the first hub 111 at intervals, a first wind blade 112 connected between the first hub 111 and the first wind barrel 113, and a second wind blade 114 disposed on an outer peripheral surface of the first wind barrel 113, and a bending direction of the first wind blade 112 is the same as a bending direction of the second wind blade 114. Therefore, the first hub 111, the first blade 112, the first wind tube 113 and the second blade 114 are connected into a whole, and when the first hub 111 is driven to rotate, the first blade 112, the first wind tube 113 and the second blade 114 can also rotate in the same direction. In an embodiment, the first hub 111, the first blade 112, the first air duct 113, and the second blade 114 may be integrally injection-molded or 3D-printed, so as to ensure that the first wind wheel 110 has a good structural performance. Of course, in other embodiments, any two or all of the first hub 111, the first fan 112, the first air duct 113 and the second fan 114 may be welded or welded.
Because the bending direction of the first fan blade 112 is the same as the bending direction of the second fan blade 114, when the first wind wheel 110 rotates, the air supply direction of the first fan blade 112 is the same as the air supply direction of the second fan blade 114. Moreover, the first fan blade 112 and the second fan blade 114 are separated by the first air duct 113, the first fan blade 112 rotates to blow out one air flow in the first air duct 113, and the second fan blade 114 blows out another air flow at the periphery of the first air duct 113, which is equivalent to that the first wind wheel 110 can blow out two air flows when rotating, and the flow directions of the two air flows are the same, and the air flow blown out by the second fan blade 114 is located at the periphery of the air flow blown out by the first fan blade 112 in the process of advancing, that is, the air flow blown out by the second fan blade 114 wraps up and conveys the air flow blown out by the first fan blade 112 together.
The wind wheel assembly further includes a second wind wheel 120, the second wind wheel 120 includes a second hub 121 and third blades 122 disposed on the second hub 121, a bending direction of the third blades 122 is opposite to a bending direction of the first blades 112, and the second hub 121 is located on one axial side of the first hub 111. In this embodiment, the first wind wheel 110 and the second wind wheel 120 are substantially coaxially disposed, that is, the second wind wheel 120 is located on one axial side of the first wind wheel 110, and the second wind wheel 120 and the first wind wheel 110 rotate independently. When the rotation direction of the second wind wheel 120 is opposite to the rotation direction of the first wind wheel 110, the air supply direction of the second wind wheel 120 is the same as the air supply direction of the first wind wheel 110, so that the air supply pressure of the wind wheel assembly can be increased, and the air supply distance is increased.
According to the technical scheme, the first fan blades 112 are arranged in the first air duct 113 of the first air wheel 110, the second fan blades 114 are arranged on the outer peripheral surface of the first air duct 113, the bending direction of the first fan blades 112 is the same as that of the second fan blades 114, the second air wheel 120 is arranged on one axial side of the first air wheel 110, and the bending direction of the third fan blades 122 of the second air wheel 120 is opposite to that of the first fan blades 112 of the first air wheel 110. So when the rotation direction of second wind wheel 120 is opposite to the rotation direction of first wind wheel 110, can make the air supply direction of second wind wheel 120 and the air supply direction of first wind wheel 110 the same to can increase air supply wind pressure through second wind wheel 120 and first wind wheel 110, promote the air supply distance. When the first wind wheel 110 rotates, the first wind blade 112 and the second wind blade 114 of the first wind wheel 110 can respectively blow out a wind flow, and the wind flow blown out by the second wind blade 114 can wrap the wind flow blown out by the first wind blade 112 and flow in the same direction. Therefore, when the wind wheel assembly is installed on the indoor unit 100 of the air conditioner, the cold air flow or the hot air flow passing through the heat exchanger 170 can be sucked through the first wind wheel 112, and after the cold air flow or the hot air flow is blown out from the first wind wheel 112 and the second wind wheel 120, the air flow blown out by the second wind wheel 114 can wrap the cold air flow or the hot air flow blown out by the first wind wheel 112 for conveying, so that the loss of the cold air flow or the hot air flow in the conveying process can be reduced, and the conveying distance of the cold air flow or the hot air flow is further.
The mounting structure of the second wind wheel 120 and the first wind wheel 110 has various structures, for example, in an embodiment, the first wind barrel 113 partially protrudes laterally from the first wind barrel 112, and the third wind barrel 122 is disposed in the protruding portion of the first wind barrel 113. Specifically, the axial dimension of the first wind barrel 113 is greater than the axial dimensions of the first wind blade 112 and the first hub 111, the first wind blade 112 is located at the wind inlet end of the first wind barrel 113, and the third wind blade 122 is located at the wind outlet end of the first wind barrel 113, that is, the third wind blade 122 and the second wind blade 114 share the first wind barrel 113 to form a wind channel, so that when cold air or hot air passing through the heat exchanger 170 is sucked in through the first wind blade 112, the wind pressure of the cold air or hot air can be ensured to be greater, and the conveying distance of the cold air or hot air is further increased. The air leakage between the air duct of the first fan blade 112 and the air duct of the second wind wheel 120 can be avoided, the air flow blown out from the first fan blade 112 is ensured to be blown out through the third fan blade 122, the air flow loss between the first fan blade 112 and the third fan blade 122 is reduced, the air flow can be prevented from being turbulent between the third fan blade 122 and the second fan blade 114, and therefore the air outlet effect can be improved. Of course, in other embodiments, the third fan 122 may also be disposed at the air inlet end of the first air duct 113.
In one embodiment, in the axial direction of the first hub 111, the second blade 114 has an offset closer to the third blade 122 than the first blade 112. Specifically, the first fan blade 112 is located at an air inlet end of the first air duct 113, the third fan blade 122 is located at an air outlet end of the first air duct 113, and an air inlet side of the second fan blade 114 and an air inlet side of the first fan blade 112 are spaced in an axial direction of the first air duct 113. That is, the second fan blade 114 is disposed near the air outlet end of the first air duct 113, and the distance between the air inlet side of the second fan blade 114 and the air inlet side of the first fan blade 112 is the offset of the second fan blade 114 near the third fan blade 122 compared with the first fan blade 112. When the air wheel component is installed on the air conditioner, the air inlet end of the first air duct 113 is arranged close to the heat exchanger 170 in the air conditioner, and the second fan blades 114 are arranged close to the air outlet end of the first air duct 113, so that the interference between the second fan blades 114 and the heat exchanger 170 or other components can be avoided. The negative pressure generated by the second fan blade 114 at the heat exchanger 170 can be reduced, so that the hot air flow or the cold air flow flowing to the second fan blade 114 is less, and more hot air flow or cold air flow is ensured to be blown out by flowing through the first fan blade 112 and the third fan blade 122, so that the conveying distance of the hot air flow or the cold air flow is longer. Of course, in other embodiments, the air inlet side of the second fan blade 114 may be substantially flush with the air inlet side of the first fan blade 112.
In another embodiment, referring to fig. 5 to 7 in combination, the second wind wheel 120 further includes a second wind cylinder 123 disposed around the second hub 121 at intervals, and the third wind blade 122 is connected between the second hub 121 and the second wind cylinder 123. Specifically, the first air duct 113 and the second air duct 123 are disposed at an interval to ensure that the first air duct 113 and the second air duct 123 can rotate independently. The second air duct 123 is located on the air inlet side of the first air duct 113, and the first air duct 113 and the second air duct 123 are arranged approximately coaxially, so that the first air duct 113 and the second air duct 123 together form an air duct of the first fan blade 112 and the third fan blade 122, and the air duct of the third fan blade 122 is separated from the air duct of the second fan blade 114, so that the possibility that air flow generates turbulence between the third fan blade 122 and the second fan blade 114 can be reduced, and the improvement of the air outlet effect of the air wheel assembly is facilitated. So set up and to make the axial length of first dryer 113 and second dryer 123 all less, can reduce the mould size, be favorable to reduce cost. Of course, in other embodiments, the second air duct 123 may also be disposed on the air outlet side of the first air duct 113.
Referring to fig. 1 or fig. 5, in order to ensure that the airflow flows more stably in the first air duct 113 and the second air duct 123, in an embodiment, the inner diameters of the second air duct 123 and the first air duct 113 are the same, that is, the inner circumferential surface of the second air duct 123 is substantially flush with the inner circumferential surface of the first air duct 113, so that the airflow blown out by the third fan blade 122 can flow more stably to the first air duct 113, the possibility of turbulence of the airflow between the second air duct 123 and the first air duct 113 due to the change of the inner diameter can be reduced, which is beneficial to improving the air outlet effect of the third fan blade 122 and the first fan blade 112, and thus the overall air outlet effect of the air wheel assembly can be improved. Of course, in other embodiments, the inner diameter of the second air duct 123 may be larger or smaller than the inner diameter of the first air duct 113.
In one embodiment, the second air duct 123 has the same outer diameter as the first air duct 113. That is, the outer peripheral surface of the second air duct 123 is substantially flush with the outer peripheral surface of the first air duct 113, so that the outer peripheral surface of the second air duct 123 is substantially flush with the outer peripheral surface of the first air duct 113, the possibility that the air flow flowing through the second fan blade 114 generates turbulence between the first air duct 113 and the second air duct 123 can be reduced, the improvement of the air outlet effect of the second fan blade 114 is facilitated, and the overall air outlet effect of the air wheel assembly can be improved. In other embodiments, the outer diameter of the second air duct 123 may be larger or smaller than the outer diameter of the first air duct 113.
In an embodiment, the outer diameters of the first hub 111 and the second hub 121 are the same, that is, the outer peripheral surface of the first hub 111 is substantially flush with the outer peripheral surface of the second hub 121, so that when an airflow flows between the first fan blade 112 and the third fan blade 122, the flow of the airflow can be ensured to be stable, the possibility of turbulence of the airflow between the first hub 111 and the second hub 121 due to the change of the hub diameter can be reduced, the improvement of the air outlet effect of the third fan blade 122 and the first fan blade 112 is facilitated, and the overall air outlet effect of the wind wheel assembly can be improved. In the embodiment in which the third blades 122 are disposed in the protruding portion of the first air duct 113, the distance between the first hub 111 and the first air duct 113 is the same as the distance between the second hub 121 and the first air duct 113, so that the smoothness of the airflow flowing in the first air duct 113 can be better ensured. In the embodiment that the second wind wheel 120 includes the second wind cylinder 123, and the inner diameter of the second wind cylinder 123 is the same as that of the first wind cylinder 113, the distance between the first hub 111 and the first wind cylinder 113 can be the same as the distance between the second hub 121 and the second wind cylinder 123, so that the smoothness of the airflow flowing in the first wind cylinder 113 can be better ensured. Of course, in other embodiments, the outer diameter of the second hub 121 may be larger or smaller than the outer diameter of the first hub 111.
The ratio of the distance from the outer edge of the second fan blade 114 to the outer peripheral surface of the first air duct 113 to the distance from the outer edge of the second fan blade 114 to the outer peripheral surface of the first hub 111 is greater than or equal to 0.15 and less than or equal to 0.75. Specifically, referring to fig. 3, the outer diameter of the second blade 114 is D0 (the outer diameter of the second blade 114 refers to the diameter of the circle swept by the outer edge of the second blade 114), the outer diameter of the first wind cylinder 113 is D1, and the outer diameter of the first hub 111 is D2. The distance from the outer edge of the second fan blade 114 to the outer peripheral surface of the first air duct 113 is one half of the difference between the outer diameter of the second fan blade 114 and the outer diameter of the first air duct 113, i.e. the distance from the outer edge of the second fan blade 114 to the outer peripheral surface of the first air duct 113 is (D0-D1)/2. The distance from the outer edge of the second blade 114 to the outer peripheral surface of the first hub 111 is one half of the difference between the outer diameter of the second blade 114 and the outer diameter of the first hub 111, i.e. the distance from the outer edge of the second blade 114 to the outer peripheral surface of the first hub 111 is (D0-D2)/2. If the ratio is more than or equal to 0.15 (D0-D1)/(D0-D2) more than or equal to 0.75. When the ratio of (D0-D1) to (D0-D2) is set to be 0.15-0.75, the air supply volumes of the first fan blade 112 and the second fan blade 114 can be ensured to be relatively close, and therefore a good air supply effect can be obtained. Wherein the ratio of (D0-D1) to (D0-D2) can be 0.15, 0.20, 0.25, 0.30, 0.35, 0.45, 0.50, 0.55, 0.65, 0.75, etc.
Referring to fig. 2 and 4 in combination or fig. 5 and 6 in combination, in an embodiment, the number of the second blades 114 is greater than the number of the first blades 112. Therefore, the air supply quantity of the second fan blade 114 can be increased, and the air supply quantity of the second fan blade 114 can be close to the air supply quantity of the first fan blade 112, or the air supply quantity of the second fan blade 114 can be larger than the air supply quantity of the first fan blade 112, so that the airflow blown out by the second fan blade 114 can better wrap the airflow blown out by the first fan blade 112 and the third fan blade 122 for conveying, and a better air supply effect can be ensured. Of course, in other embodiments, the air output of the first wind wheel 110 may also be increased by increasing the surface area of the pressure surface of the second wind blades 114, and at this time, the number of the second wind blades 114 may be equal to the number of the first wind blades 112, or less than the number of the first wind blades 112.
In one embodiment, the ratio of any two of the number of the first blades 112, the number of the second blades 114, and the number of the third blades 122 is a non-integer. Specifically, the number of the first blades 112 is x, the number of the second blades 114 is y, and the number of the third blades 122 is z. That is, when y is greater than x, then x cannot be divided equally by y, and when x is greater than y, then y cannot be divided equally by x. When y is greater than z, then z is not divisible by y, and when z is greater than y, then y is not divisible by z. When z is greater than x, then x cannot be divided equally by z, and when x is greater than z, then z cannot be divided equally by x. By the arrangement, in the working process of the wind wheel assembly, the first fan blade 112, the second fan blade 114 and the third fan blade 122 are prevented from generating frequency multiplication resonance to generate abnormal sound, so that the working noise of the wind wheel assembly is reduced. Of course, in other embodiments, the ratio of any two of the number of the first fan blades 112, the number of the second fan blades 114, and the number of the third fan blades 122 may also be an integer.
In an embodiment, the number of the first blades 112, the number of the second blades 114, and the number of the third blades 122 are odd numbers. With the arrangement, the probability of generating abnormal noise due to resonance among the first fan blades 112, the second fan blades 114 and the third fan blades 122 can be reduced in the rotating process of the first wind wheel 110 and the second wind wheel 120, so that the working noise of the wind wheel assembly is reduced. Of course, in other embodiments, the number of any one of the first fan blade 112, the second fan blade 114 and the third fan blade 122 may be set to be an odd number, and the number of the other two may be an even number. Or the number of any two of the first fan blade 112, the second fan blade 114 and the third fan blade 122 is set to be odd, and the number of the other one is even. Or the number of the first fan blade 112, the second fan blade 114 and the third fan blade 122 is even.
Referring to fig. 8 to 11, the present invention further provides an air-conditioning indoor unit 100, where the air-conditioning indoor unit 100 includes a first motor 150, a second motor 160, and a wind wheel assembly, and the specific structure of the wind wheel assembly refers to the above embodiments, and since the air-conditioning indoor unit 100 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are provided, and are not repeated herein. The first wind wheel 110 of the wind wheel assembly is arranged on a rotating shaft of the first motor 150, the second wind wheel 120 of the wind wheel assembly is arranged on a rotating shaft of the second motor 160, and the air supply direction of the first wind wheel 110 is the same as that of the second wind wheel 120. Specifically, the first hub 111 is disposed on a rotating shaft of the first motor 150, so that the first motor 150 drives the first hub 111, the first blade, the first air duct 113 and the second blade to rotate together, and since the bending directions of the first blade 112 and the second blade 114 are the same, the air blowing directions of the first blade 112 and the second blade 114 are the same. The second hub 121 is disposed on a rotating shaft of the second motor 160, so that the second motor 160 drives the second hub 121 and the third blade 122 to rotate, and the rotation directions of the second wind wheel 120 and the first wind wheel 110 are opposite, and because the bending directions of the third blade 122 and the first blade 112 are opposite, the air supply directions of the third blade 122 and the first blade 112 are the same, so as to increase the wind pressure and increase the air supply distance of the indoor air conditioner 100.
In one embodiment, the indoor unit 100 of the air conditioner includes an outer casing 130, an inner casing 140 disposed in the outer casing 130, and a heat exchanger 170 disposed in the inner casing 140, where the outer casing 130 is provided with a first air inlet 131 and a first air outlet 132, the inner casing 140 is provided with a second air inlet 141 and a second air outlet 142, and the heat exchanger 170 is located between the second air inlet 141 and the second air outlet 142; the wind wheel assembly is disposed at the second wind outlet 142, the first wind blade 112 and the third wind blade 122 of the wind wheel assembly are used for enabling the airflow to flow into the inner shell 140 from the second wind inlet 141 and blow to the first wind outlet 132 from the second wind outlet 142, and the second wind blade 114 of the wind wheel assembly is used for enabling the airflow to flow into the space between the outer shell 130 and the inner shell 140 from the first wind inlet 131 and blow to the first wind outlet 132.
Specifically, the wind wheel assembly is disposed between the second wind outlet 142 and the first wind outlet 132, the first motor 150 is mounted on the inner casing 140, and the second motor 160 is mounted on the outer casing 130. The first wind wheel 110 and the second wind wheel 120 are distributed along the direction of the second air outlet 142 pointing to the first air outlet 132, and the first wind barrel 113 of the first wind wheel 110 corresponds to the second air outlet 142, so that the air flow can flow into the inner casing 140 from the second air inlet 141, flow into the first wind barrel 113 from the second air outlet 142, blow to the first air outlet 132 through the first fan blade 112 and the third fan blade 122, and finally send out from the first air outlet 132. The second fan 114 is located between the first wind barrel 113 and the outer casing 130, and between the first wind inlet 131 and the first wind outlet 132, so that the airflow can flow into the space between the outer casing 130 and the inner casing 140 from the first wind inlet 131, blow to the first wind outlet 132 from the space between the first wind barrel 113 and the outer casing 130, and finally send out from the first wind outlet 132.
Because the heat exchanger 170 is disposed in the inner casing 140, the airflow sent out by the first fan blade 112 and the third fan blade 122 is hot airflow or cold airflow, and the airflow flowing into the space between the outer casing 130 and the inner casing 140 from the first air inlet 131 and sent out by the second fan blade 114 does not pass through the heat exchanger 170, so that the normal temperature airflow sent out by the second fan blade 114 is normal temperature airflow. Therefore, the normal temperature airflow blown out by the second fan blade 114 can wrap the cold airflow or the hot airflow blown out by the first fan blade 112 for conveying, so that the loss of the cold airflow or the hot airflow in the conveying process can be reduced, and the conveying distance of the cold airflow or the hot airflow is longer. And in the conveying process after the air current is sent out from the first air outlet 132, the outer normal temperature air current and the inner cold air current or hot air current can be exchanged, the turbulence of the air current when blowing to the human body can be improved, when the inner air current is hot air current, the temperature of the blown air current can be reduced, and when the inner air current is cold air current, the temperature of the blown air current can be improved, so that the blown air current is softer, and the temperature is moderate, so that the use comfort of a user is improved. The inner shell 140 and the outer shell 130 may be integrally formed or may be separately disposed, for example, the inner shell 140 and the outer shell 130 may be detachably connected. In addition, in other embodiments, the airflow blown out by the second fan blade 114 may also be a cold airflow or a hot airflow passing through the heat exchanger 170. In addition, referring to fig. 12, the second wind wheel 120 may also be disposed between the first wind wheel 110 and the second wind outlet 142, in which case the first motor 150 is mounted on the outer casing 130 and the second motor 160 is mounted on the inner casing 140.
Referring to fig. 11 or 12, in an embodiment, the outer shell 130 has an opening opposite to the first air outlet 132, the first air inlet 131 is disposed between the first air outlet 132 and the opening, and the inner shell 140 has an air inlet end with a second air inlet 141 disposed at the opening. Specifically, the second air inlet 141 is disposed at an air inlet end of the inner casing 140, and the air inlet end of the inner casing 140 is disposed at the opening. The housing 130 is disposed in a square shape, the opening and the first air outlet 132 are disposed on two opposite sides of the housing 130, the housing 130 has a sidewall between the opening and the first air outlet 132, and the first air inlet 131 is disposed on the sidewall of the housing 130. Taking the first outlet 132 facing forward as an example, the opening is disposed at the rear side of the housing 130, and the first inlet 131 may be disposed at any one or more of the upper side, the lower side, the left side and the right side of the housing 130, for example, the upper side, the left side and the right side of the housing 130 when the lower side of the housing 130 is used for mounting and fixing. With such an arrangement, the mutual interference of the air flows flowing into the first air inlet 131 and the second air inlet 141 can be reduced, so as to ensure that the first air inlet 131 and the second air inlet 141 both have sufficient air flows, thereby being beneficial to improving the air outlet effect of the indoor unit 100 of the air conditioner. Of course, in other embodiments, the opening edge of the first outer casing 130 may be spaced apart from the outer circumferential surface of the inner casing 140, so that the first air inlet 131 is formed between the inner casing 140 and the outer casing 130. In addition, the housing 130 may also have a cylindrical shape.
The present invention further provides an air conditioner, which includes an outdoor unit of the air conditioner and an indoor unit of the air conditioner 100, and the specific structure of the indoor unit of the air conditioner 100 refers to the above embodiments, and since the air conditioner employs all technical solutions of all the above embodiments, the air conditioner at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A wind wheel assembly, comprising:
the first wind wheel comprises a first hub, first wind cylinders arranged around the first hub at intervals, first wind blades connected between the first hub and the first wind cylinders, and second wind blades arranged on the outer peripheral surfaces of the first wind cylinders, and the bending direction of the first wind blades is the same as that of the second wind blades; and the number of the first and second groups,
and the second wind wheel comprises a second hub and third fan blades arranged on the second hub, the bending direction of the third fan blades is opposite to that of the first fan blades, and the second hub is positioned on one axial side of the first hub.
2. The air wheel assembly as claimed in claim 1, wherein said first air duct portion protrudes laterally from said first fan blade, and said third fan blade is provided in said protruding portion of said first air duct.
3. The wind wheel assembly as claimed in claim 2 wherein said second wind blade has an offset closer to said third wind blade than said first wind blade in an axial direction of said first hub.
4. The wind wheel assembly as claimed in claim 1 wherein said second wind wheel further comprises a second wind tunnel disposed at intervals around said second hub, said third wind blade being connected between said second hub and said second wind tunnel;
wherein the second air duct has the same inner diameter as the first air duct; and/or the second air duct and the first air duct have the same outer diameter.
5. The wind wheel assembly as claimed in claim 1 wherein the number of said second blades is greater than the number of said first blades.
6. The wind wheel assembly of any of claims 1 to 5, wherein the ratio of any two of the number of first wind blades, the number of second wind blades, and the number of third wind blades is a non-integer.
7. The wind wheel assembly of any one of claims 1 to 5, wherein the number of first wind blades, the number of second wind blades and the number of third wind blades are all odd numbers.
8. The wind wheel assembly according to any one of claims 1 to 5, wherein the outer diameters of the first hub and the second hub are the same, and the ratio of the distance from the outer edge of the second fan blade to the outer peripheral surface of the first wind cylinder to the distance from the outer edge of the second fan blade to the outer peripheral surface of the first hub is greater than or equal to 0.15 and less than or equal to 0.75.
9. An indoor unit of an air conditioner, characterized by comprising a first motor, a second motor and the wind wheel assembly as claimed in any one of claims 1 to 8, wherein the first wind wheel of the wind wheel assembly is arranged on a rotating shaft of the first motor, the second wind wheel of the wind wheel assembly is arranged on a rotating shaft of the second motor, and the air supply direction of the first wind wheel is the same as the air supply direction of the second wind wheel.
10. The indoor unit of claim 9, wherein the indoor unit comprises an outer casing, an inner casing disposed inside the outer casing, and a heat exchanger disposed inside the inner casing, wherein the outer casing is provided with a first air inlet and a first air outlet, the inner casing is provided with a second air inlet and a second air outlet, and the heat exchanger is disposed between the second air inlet and the second air outlet;
the wind wheel assembly is arranged at the second air outlet, the first fan blade and the third fan blade of the wind wheel assembly are used for enabling air flow to flow into the inner shell from the second air inlet and blow to the first air outlet from the second air outlet, and the second fan blade of the wind wheel assembly is used for enabling air flow to flow into a space between the outer shell and the inner shell from the first air inlet and blow to the first air outlet.
11. The indoor unit of claim 10, wherein the outer casing has an opening opposite to the first outlet, the first inlet is located between the first outlet and the opening, and the inner casing has an inlet end provided with the second inlet at the opening.
12. An air conditioner characterized by comprising the indoor unit of an air conditioner according to any one of claims 9 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010411146.0A CN111442372A (en) | 2020-05-14 | 2020-05-14 | Machine and air conditioner in wind wheel subassembly, air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010411146.0A CN111442372A (en) | 2020-05-14 | 2020-05-14 | Machine and air conditioner in wind wheel subassembly, air conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111442372A true CN111442372A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010411146.0A Pending CN111442372A (en) | 2020-05-14 | 2020-05-14 | Machine and air conditioner in wind wheel subassembly, air conditioning |
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| CN (1) | CN111442372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320957A (en) * | 2020-10-10 | 2022-04-12 | 广东美的暖通设备有限公司 | Fan device and air condensing units |
| WO2022073454A1 (en) * | 2020-10-10 | 2022-04-14 | 广东美的暖通设备有限公司 | Fan apparatus and air conditioner outdoor unit |
| WO2022156233A1 (en) * | 2021-01-21 | 2022-07-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
-
2020
- 2020-05-14 CN CN202010411146.0A patent/CN111442372A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320957A (en) * | 2020-10-10 | 2022-04-12 | 广东美的暖通设备有限公司 | Fan device and air condensing units |
| WO2022073454A1 (en) * | 2020-10-10 | 2022-04-14 | 广东美的暖通设备有限公司 | Fan apparatus and air conditioner outdoor unit |
| CN114320957B (en) * | 2020-10-10 | 2024-03-22 | 广东美的暖通设备有限公司 | Fan device and air conditioner outdoor unit |
| WO2022156233A1 (en) * | 2021-01-21 | 2022-07-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
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