CN220624194U - Air supply device and air conditioner indoor unit - Google Patents
Air supply device and air conditioner indoor unit Download PDFInfo
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- CN220624194U CN220624194U CN202321589831.8U CN202321589831U CN220624194U CN 220624194 U CN220624194 U CN 220624194U CN 202321589831 U CN202321589831 U CN 202321589831U CN 220624194 U CN220624194 U CN 220624194U
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- 238000007664 blowing Methods 0.000 claims description 11
- 238000004378 air conditioning Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The utility model provides an air supply device and an air conditioner indoor unit. The first centrifugal fan comprises a first air outlet channel and a first volute tongue, wherein the first air outlet channel comprises a first air outlet wall connected to the first volute tongue and a second air outlet wall arranged opposite to the first air outlet wall. The second centrifugal fan comprises a second air outlet duct and a second volute tongue, wherein the second air outlet duct comprises a third air outlet wall connected to the second volute tongue and a fourth air outlet wall arranged opposite to the third air outlet wall; the tail end of the fourth air outlet wall is connected with the tail end of the first air outlet wall; the tangent plane at the tail end of the first air outlet wall is a first tangent plane; at least part of the third air outlet wall is positioned between the first tangential plane and the second air outlet wall; an air supply port is arranged between the tail end of the third air outlet wall and the tail end of the second air outlet wall. The air pressure of the air flow at the air supply opening is increased, and the increased air pressure enables the flow speed of the air flow flowing out of the air supply opening to be increased, so that the air supply distance of the air conditioner indoor unit is further increased, and the refrigerating or heating efficiency of the air conditioner indoor unit is improved.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an air supply device and an air conditioner indoor unit.
Background
The centrifugal fan is an important part in the air conditioner indoor unit, is arranged in the air conditioner indoor unit shell, and relates to the air supply mode, the air supply range and the air supply area of the air conditioner indoor unit. The centrifugal fan of the indoor unit of the air conditioner on the market has simple structure, which leads to single air supply mode, low air pressure, small air supply area and small air supply range of the indoor unit of the air conditioner, thereby leading to low refrigeration or heating efficiency of the indoor unit of the air conditioner.
Disclosure of Invention
In view of the foregoing, the present utility model has been made to provide an air-blowing device and an air-conditioning indoor unit that overcome or at least partially solve the foregoing problems, and can solve the problems of single air-blowing mode, low air pressure, small air-blowing area, and small air-blowing range of the conventional air-conditioning indoor unit, thereby improving the cooling or heating efficiency of the air-conditioning indoor unit.
Specifically, the utility model provides an air supply device, which comprises a first centrifugal fan and a second centrifugal fan; the first centrifugal fan comprises a first air outlet channel and a first volute tongue, wherein the first air outlet channel comprises a first air outlet wall connected to the first volute tongue and a second air outlet wall arranged opposite to the first air outlet wall; the second centrifugal fan comprises a second air outlet duct and a second volute tongue, wherein the second air outlet duct comprises a third air outlet wall connected to the second volute tongue and a fourth air outlet wall arranged opposite to the third air outlet wall; the tail end of the fourth air outlet wall is connected with the tail end of the first air outlet wall; the tangent plane at the tail end of the first air outlet wall is a first tangent plane; at least part of the third air outlet wall is positioned between the first tangential plane and the second air outlet wall; an air supply port is arranged between the tail end of the third air outlet wall and the tail end of the second air outlet wall.
Optionally, the tangential plane at the end of the fourth air outlet wall is a second tangential plane, and an included angle between the second tangential plane and the first tangential plane is less than or equal to 30 °.
Optionally, the third air outlet wall includes a curved surface section arched towards the second air outlet wall and having an end of the third air outlet wall, and the curved surface section is an arc-shaped surface taking section or an involute curved surface section or a vortex curved surface section.
Optionally, the tangent plane at the tail end of the second air outlet wall is a third tangent plane, and the tangent plane at the tail end of the third air outlet wall is a fourth tangent plane;
the third section is parallel to the fourth section, or the distance between the third section and the fourth section gradually becomes larger and gradually expands along the flowing direction of the air flow; or, along the flowing direction of the air flow, the distance between the third tangent plane and the fourth tangent plane gradually becomes smaller and gradually becomes smaller, and the included angle between the third tangent plane and the fourth tangent plane is smaller than or equal to 20 degrees.
Optionally, the length of the second air outlet wall is greater than the length of the third air outlet wall.
Optionally, the diameter of the wind wheel of the first centrifugal fan is larger than the diameter of the wind wheel of the second centrifugal fan.
Optionally, the air inlet of the first centrifugal fan and the air inlet of the second centrifugal fan face the same or different directions.
Specifically, the utility model provides an air conditioner indoor unit, which comprises any one of the air supply devices and a shell; the air supply device is arranged in the shell, and an air outlet and an air return opening are arranged on the shell; the air outlet is communicated with the air supply outlet, and the air return outlet is communicated with the air inlet of the first centrifugal fan and the air inlet of the second centrifugal fan.
Optionally, the air return port is arranged on the side wall of the shell, and the air return port comprises a first air return port and a second air return port; the first air return port is aligned with and communicated with the air inlet of the first centrifugal fan, and the second air return port is aligned with and communicated with the air inlet of the second centrifugal fan; the shell is in a cuboid shape or a cylinder shape.
Optionally, a first heat exchanger is arranged between the air inlet and the first air return of the first centrifugal fan; and/or a second heat exchanger is arranged between the air inlet of the second centrifugal fan and the second air return inlet; or the first air return port and the second air return port are arranged on the side wall of the same shell, and a third heat exchanger is arranged between the side wall of the shell and the air supply device.
In the air supply device and the air conditioner indoor unit, the first centrifugal fan and the second centrifugal fan are arranged, and air flow generated by the first centrifugal fan and air flow generated by the second centrifugal fan are converged at the air supply opening. The third air outlet wall is at least partially arranged between the first tangential plane and the second air outlet wall, so that the distance between the second air outlet wall and the third air outlet wall corresponding to the air supply outlet is smaller than the distance between the second air outlet wall and the third air outlet wall corresponding to the first air outlet wall and the fourth air outlet wall, the air pressure of the air flow converged to the air supply outlet is increased, the flow speed of the air flow flowing out of the air supply outlet is increased by the increased air pressure, and the air supply distance is increased.
Further, because the included angle between the second tangent plane and the first tangent plane is smaller than or equal to 30 degrees, the included angle between the direction of the air flow entering the air supply outlet from the first air outlet air channel and the direction of the air flow entering the air supply outlet from the second air outlet air channel is smaller than or equal to 30 degrees, when the air flow of the first air outlet air channel and the air flow of the second air outlet air channel are converged in the air supply outlet, one air flow cannot generate windage to the other air flow, so that the flow speed of the air flow in the air supply outlet is influenced, and the setting that the included angle between the second tangent plane and the first tangent plane is smaller than or equal to 30 degrees can ensure that the air speed of the air flow flowing out from the air supply outlet is influenced by windage to be reduced.
Further, in the air conditioner indoor unit of the present utility model, the air supply device is installed in the housing due to the housing and the air supply device of any one of the above claims, so that the air supply distance of the air conditioner indoor unit is further increased, and the cooling or heating efficiency of the air conditioner indoor unit is improved.
Further, the casing adopts the cuboid setting to make the interior machine of air conditioner can be embedded and install in the reserved space of wall body or the reserved space of cabinet body, thereby promote the clean and tidy degree and the pleasing to the eye degree after the interior machine of air conditioner embedding is installed.
The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic block diagram of an air moving device according to one embodiment of the present utility model;
FIG. 2 is a schematic internal structural view of an air blowing device according to an embodiment of the present utility model;
FIG. 3 is a schematic internal structural view of an air blowing device according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present utility model;
fig. 5 is a schematic installation position structure diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model.
Detailed Description
An air blowing device and an air conditioner indoor unit according to an embodiment of the present utility model are described below with reference to fig. 1 to 5. In the description of the present embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.
Unless specifically stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be connected, either permanently or removably, or integrally; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.
Furthermore, in the description of the present embodiments, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween. That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.
In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Fig. 1 is a schematic structural view of an air blowing device, as shown in fig. 1, and referring to fig. 2 to 5, an embodiment of the present utility model provides an air blowing device including a first centrifugal fan 100 and a second centrifugal fan 200.
The first centrifugal fan 100 includes a first air outlet duct 110 and a first volute tongue 120, the first air outlet duct 110 includes a first air outlet wall 111 connected to the first volute tongue 120, and a second air outlet wall 112 opposite to the first air outlet wall 111, and the first air outlet duct 110 can guide the air flow in the first centrifugal fan 100 outwards.
The second centrifugal fan 200 includes a second air outlet duct 210 and a second volute tongue 220, the second air outlet duct 210 includes a third air outlet wall 211 connected to the second volute tongue 220, and a fourth air outlet wall 212 opposite to the third air outlet wall 211, and the second air outlet duct 210 can guide the air flow in the second centrifugal fan 200 outwards.
The end of the fourth air outlet wall 212 is connected to the end of the first air outlet wall 111. The tangential plane at the end of the first air outlet wall 111 is a first tangential plane. The third air outlet wall 211 is at least partially located between the first tangential plane and the second air outlet wall 112. Between the end of the third air outlet wall 211 and the end of the second air outlet wall 112 is an air outlet 300, specifically, the lengths of the second air outlet wall 112 and the third air outlet wall 211 extending along the air flow direction are longer than the lengths of the first air outlet wall 111 and the fourth air outlet wall 212 extending along the air flow direction, and the portions of the second air outlet wall 112 beyond the first air outlet wall 111 and the fourth air outlet wall 212 and the portions of the third air outlet wall 211 beyond the first air outlet wall 111 and the fourth air outlet wall 212 form the air outlet 300. The airflows of the first air outlet duct 110 and the second air outlet duct 210 are collected at the air supply outlet 300. The third air outlet wall 211 is at least partially located between the first tangential plane and the second air outlet wall 112, so that the distance between the second air outlet wall 112 and the third air outlet wall 211 corresponding to the air outlet 300 is smaller than the distance between the second air outlet wall 112 and the third air outlet wall 211 corresponding to the first air outlet wall 111 and the fourth air outlet wall 212, thereby increasing the air pressure of the air flow converged at the air outlet 300, and increasing the air pressure to increase the flow velocity of the air flow flowing out of the air outlet 300, and further increasing the air supply distance.
In operation, the first centrifugal fan 100 and the second centrifugal fan 200 are started, the air flow generated by starting the first centrifugal fan 100 is led out from the first air outlet air duct 110, and the air flow generated by starting the second centrifugal fan 200 is led out from the second air outlet air duct 210. Since the air supply port 300 is located between the end of the third air outlet wall 211 and the end of the second air outlet wall 112, the air flow generated by the first air outlet duct 110 and the air flow generated by the second air outlet duct 210 are collected in the air supply port 300. Because of the arrangement of the third air outlet wall 211 at least partially located between the first tangential plane and the second air outlet wall 112, the distance between the second air outlet wall 112 and the third air outlet wall 211 corresponding to the air outlet 300 is smaller than the distance between the second air outlet wall 112 and the third air outlet wall 211 corresponding to the first air outlet wall 111 and the fourth air outlet wall 212, so that the air pressure of the air flow converged at the air outlet 300 is increased, and the increased air pressure increases the flow velocity of the air flow flowing out from the air outlet 300, thereby increasing the air supply distance.
In some embodiments of the present utility model, as shown in fig. 1 to 3, the tangential plane at the end of the fourth air outlet wall 212 is a second tangential plane, and the included angle between the second tangential plane and the first tangential plane is less than or equal to 30 °, so that the included angle between the direction of the air flow entering the air outlet 300 from the first air outlet duct 110 and the direction of the air flow entering the air outlet 300 from the second air outlet duct 210 is less than or equal to 30 °, so that when the air flow of the first air outlet duct 110 and the air flow of the second air outlet duct 210 are collected in the air outlet 300, one air flow does not generate windage to the other air flow, thereby affecting the flow velocity of the air flow in the air outlet 300, and therefore, the arrangement of the included angle between the second tangential plane and the first tangential plane is less than or equal to 30 ° can ensure that the wind velocity of the air flow flowing out from the air outlet 300 is affected by the windage.
In some embodiments of the present utility model, as shown in fig. 2 and 3, the third air outlet wall 211 includes a curved section with an end of the third air outlet wall 211 that arches toward the second air outlet wall 112. For example, the curved surface section is an arc-shaped surface taking section or an involute-shaped curved surface section or a vortex-shaped curved surface section.
Further, the second air outlet wall 112 includes a curved surface section that is concave outward toward the third air outlet wall 211 and has an end of the second air outlet wall 112, and the curved surface section is an arc-shaped surface taking section or an involute curved surface section or a vortex curved surface section. The arrangement of the first air outlet duct 110 and the second air outlet duct 210 can enable the air flow to smoothly flow out, so that the resistance of the second air outlet wall 112 and the third air outlet wall 211 to the air flow is reduced.
In some embodiments of the present utility model, as shown in fig. 1, the tangential plane at the end of the second air outlet wall 112 is a third tangential plane, and the tangential plane at the end of the third air outlet wall 211 is a fourth tangential plane.
The third section is parallel to the fourth section, or the distance between the third section and the fourth section gradually becomes larger and gradually expands along the flowing direction of the air flow; or, along the flowing direction of the air flow, the distance between the third tangent plane and the fourth tangent plane gradually becomes smaller and gradually becomes smaller, and the included angle between the third tangent plane and the fourth tangent plane is smaller than or equal to 20 degrees. The air flow of the first air outlet duct 110 and the air flow of the second air outlet duct 210 are collected in the air supply outlet 300, and when any one of the above positional relationships of the third tangential plane and the fourth tangential plane is adopted by the first air outlet duct 110 and the second air outlet duct 210, one air flow does not generate windage to the other air flow, so that the air flow rate of the air supply outlet 300 is ensured.
In some embodiments of the present utility model, as shown in fig. 2 and 3, the length of the second air outlet wall 112 is greater than the length of the third air outlet wall 211, and the length of the first air outlet wall 111 is greater than the length of the fourth air outlet wall 212.
In some embodiments of the present utility model, as shown in fig. 2 and 3, the diameter of the wind wheel 230 of the first centrifugal fan 100 is larger than the wind wheel 230 of the second centrifugal fan 200. The initial flow rate of the generated air flow of the first centrifugal fan 100 is greater than the initial flow rate of the second centrifugal fan 200, so that when the air flow of the second air outlet duct 210 enters the air supply outlet 300, the air flow rate of the first air outlet duct 110 entering the air supply outlet 300 is further prevented from being influenced, and the two air flows are prevented from interfering with each other, so that the air supply distance and the air supply range of the air supply outlet 300 are ensured, the diameter of the wind wheel 230 of the first centrifugal fan 100 is greater than that of the wind wheel 230 of the second centrifugal fan 200, and the whole steps of the air supply device can be facilitated.
Further, a setting may be adopted in which the rated power of the first centrifugal fan 100 is greater than the rated power of the second centrifugal fan 200. Or when in operation, the working power of the first centrifugal fan 100 is made to be larger than the working power of the second centrifugal fan 200, for example, the working rotation speeds of the two centrifugal fans can be made to be different.
In some embodiments of the present utility model, the air inlet of the first centrifugal fan 100 is oriented the same as or different from the air inlet of the second centrifugal fan 200.
The embodiment of the utility model also provides an indoor unit of an air conditioner, as shown in fig. 4 and 5, which comprises the air supply device and the shell 400 in any one of the above embodiments, wherein the air supply device is installed in the shell 400, and the shell 400 is provided with an air outlet 420 and an air return 410. The air outlet 420 is communicated with the air supply outlet, and the air return opening 410 is communicated with the air inlet of the first centrifugal fan 100 and the air inlet of the second centrifugal fan 200.
Specifically, the air conditioning indoor unit 600 is started, and the air blowing device is started, thereby starting the first centrifugal fan 100 and/or the second centrifugal fan 200.
Preferably, the first centrifugal fan 100 and the second centrifugal fan 200 are started at the same time, the air flow generated by starting the first centrifugal fan 100 is led out from the first air outlet air duct 110, the air flow generated by starting the second centrifugal fan 200 is led out from the second air outlet air duct 210, and at the same time, the external air enters the first centrifugal fan 100 and the second centrifugal fan 200 from the return air inlet 410 on the shell 400. Since the air supply port 300 is located between the end of the third air outlet wall 211 and the end of the second air outlet wall 112, the air flow generated by the first air outlet duct 110 and the air flow generated by the second air outlet duct 210 are collected in the air supply port 300. Because the third air outlet wall 211 is at least partially located between the first tangential plane and the second air outlet wall 112, the distance between the second air outlet wall 112 and the third air outlet wall 211 corresponding to the air outlet 300 is smaller than the distance between the second air outlet wall 112 and the third air outlet wall 211 corresponding to the first air outlet wall 111 and the fourth air outlet wall 212, so that the air pressure of the air flow converged at the air outlet 300 is increased, the flow velocity of the air flow flowing outwards from the air outlet 420 is increased by the increased air pressure, and the air supply distance and the air supply range of the air conditioner indoor unit 600 are further increased.
In some embodiments of the present utility model, as shown in fig. 4 and 5, the air outlet 420 is located at the upper end of the front surface of the casing 400, so that the air supply outlet 300 is located at the upper end of the front surface of the casing 400, and the cold air flow led out by the indoor unit 600 of the air conditioner flows downward, so that the hot air in the room is driven to move upward, thereby improving the refrigerating effect.
In some embodiments of the present utility model, as shown in fig. 4 and 5, the indoor unit 600 of the air conditioner further includes a control device, where the control device can control the first centrifugal fan 100 or the second centrifugal fan 200 to be in a closed state, and in particular, in an energy-saving state, the control device can enable the first centrifugal fan 100 or the second centrifugal fan 200 to be in a started state, so as to achieve an energy-saving effect.
In some embodiments of the present utility model, as shown in fig. 4 and 5, the return air inlet 410 is provided on a side wall of the housing 400, and the return air inlet 410 includes a first return air inlet and a second return air inlet. The first air return port is aligned with and communicates with the air inlet of the first centrifugal fan 100, and the second air return port is aligned with and communicates with the air inlet of the second centrifugal fan 200. The case 400 has a rectangular parallelepiped shape or a cylindrical shape. When the housing 400 is a cylinder, the housing 400 provided by the cylinder can enhance the aesthetic degree of the air conditioner indoor unit 600. Or, when the casing 400 is a cuboid casing 400, the casing 400 provided by the cuboid can be embedded and installed in a reserved space of a wall body or a reserved space of the cabinet 500, so that the neatness and attractiveness of the air conditioner indoor unit 600 after being embedded and installed are improved.
In some embodiments of the present utility model, a first heat exchanger is disposed between the air inlet and the first air return of the first centrifugal fan 100; a second heat exchanger is arranged between the air inlet and the second air return of the second centrifugal fan 200.
In some embodiments of the present utility model, the first heat exchanger is disposed only between the air inlet and the first air return of the first centrifugal fan 100.
In some embodiments of the present utility model, a second heat exchanger is disposed only between the air inlet and the second air return of the second centrifugal fan 200.
In some embodiments of the present utility model, the first air return port and the second air return port are disposed on a side wall of the same casing 400, and a third heat exchanger is disposed between the side wall of the casing 400 and the air supply device, so that the air flows entering the first air return port and the second air return port pass through the third heat exchanger, and the air flows exiting the heat exchangers enter the air inlet of the first centrifugal fan 100 and the air inlet of the second centrifugal fan 200 respectively.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.
Claims (10)
1. An air blowing device, comprising:
the first centrifugal fan comprises a first air outlet channel and a first volute tongue, wherein the first air outlet channel comprises a first air outlet wall connected with the first volute tongue and a second air outlet wall arranged opposite to the first air outlet wall;
the second centrifugal fan comprises a second air outlet duct and a second volute tongue, wherein the second air outlet duct comprises a third air outlet wall connected to the second volute tongue and a fourth air outlet wall arranged opposite to the third air outlet wall;
the tail end of the fourth air outlet wall is connected with the tail end of the first air outlet wall; the tangent plane at the tail end of the first air outlet wall is a first tangent plane;
at least part of the third air outlet wall is positioned between the first tangential plane and the second air outlet wall;
an air supply port is arranged between the tail end of the third air outlet wall and the tail end of the second air outlet wall.
2. The air supply device according to claim 1, wherein,
the tangent plane at the end of fourth air-out wall is the second tangent plane, second tangent plane with the contained angle between the first tangent plane is less than or equal to 30.
3. The air supply device according to claim 1, wherein,
the third air outlet wall comprises a curved surface section which is arched towards the second air outlet wall and provided with the tail end of the third air outlet wall.
4. A blower according to claim 3, wherein,
the tangent plane at the tail end of the second air outlet wall is a third tangent plane, and the tangent plane at the tail end of the third air outlet wall is a fourth tangent plane;
the third section is parallel to the fourth section, or the distance between the third section and the fourth section gradually becomes larger and gradually expands along the flowing direction of the air flow; or, along the flowing direction of the air flow, the distance between the third tangent plane and the fourth tangent plane gradually becomes smaller and gradually becomes smaller, and the included angle between the third tangent plane and the fourth tangent plane is smaller than or equal to 20 degrees.
5. The air supply device according to claim 1, wherein,
the length of the second air outlet wall is greater than that of the third air outlet wall.
6. The air supply device according to claim 1, wherein,
the diameter of the wind wheel of the first centrifugal fan is larger than that of the wind wheel of the second centrifugal fan.
7. The air supply device according to claim 1, wherein,
the air inlet of the first centrifugal fan and the air inlet of the second centrifugal fan face the same direction or different directions.
8. An air conditioning indoor unit, comprising:
the air supply device of any one of claims 1-7;
the air supply device is arranged in the shell, and an air outlet and an air return opening are formed in the shell; the air outlet is communicated with the air supply outlet, and the air return inlet is communicated with the air inlet of the first centrifugal fan and the air inlet of the second centrifugal fan.
9. The indoor unit of claim 8, wherein the indoor unit of the air conditioner,
the air outlet is positioned at the upper end of the front surface of the shell;
the air return port is arranged on the side wall of the shell and comprises a first air return port and a second air return port; the first air return port is aligned with and communicated with the air inlet of the first centrifugal fan, and the second air return port is aligned with and communicated with the air inlet of the second centrifugal fan;
the shell is in a cuboid shape or a cylinder shape.
10. The indoor unit of claim 9, wherein the indoor unit of the air conditioner,
a first heat exchanger is arranged between the air inlet of the first centrifugal fan and the first air return opening; and/or a second heat exchanger is arranged between the air inlet of the second centrifugal fan and the second air return opening; or,
the first air return port and the second air return port are arranged on the side wall of the same shell, and a third heat exchanger is arranged between the side wall of the shell and the air supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589831.8U CN220624194U (en) | 2023-06-20 | 2023-06-20 | Air supply device and air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589831.8U CN220624194U (en) | 2023-06-20 | 2023-06-20 | Air supply device and air conditioner indoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220624194U true CN220624194U (en) | 2024-03-19 |
Family
ID=90215557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321589831.8U Active CN220624194U (en) | 2023-06-20 | 2023-06-20 | Air supply device and air conditioner indoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220624194U (en) |
-
2023
- 2023-06-20 CN CN202321589831.8U patent/CN220624194U/en active Active
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