CN114777204B - Indoor unit of air conditioner and air conditioner - Google Patents
Indoor unit of air conditioner and air conditioner Download PDFInfo
- Publication number
- CN114777204B CN114777204B CN202210412252.XA CN202210412252A CN114777204B CN 114777204 B CN114777204 B CN 114777204B CN 202210412252 A CN202210412252 A CN 202210412252A CN 114777204 B CN114777204 B CN 114777204B
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- section
- air supply
- duct
- indoor unit
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Classifications
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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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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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
- F24F1/0025—Cross-flow or tangential 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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application provides an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises a cross-flow fan and an air supply volute, and the air supply volute comprises a fan section and a wind channel section. The air supply volute is arranged in an extending mode from the periphery of the cross-flow fan to an air supply port of the indoor unit, and an air supply channel is defined. The fan section extends along the periphery of the cross-flow fan towards the air supply outlet. The first side of the air duct section is pivotally arranged at the extending end of the fan section, and the second side of the air duct section extends towards the air supply opening and is configured to rotate between facing and backing the air supply duct so as to change the width of the air supply duct. The air duct section can rotate towards and away from the air supply duct to change the width of the air supply duct. When the rotation speed of the cross-flow fan is reduced, the air duct section rotates towards the air supply duct so as to reduce the width of the air supply duct. The return flow area in the air supply duct can be forcedly deleted, and the noise generated by the indoor unit of the air conditioner is avoided.
Description
Technical Field
The application relates to the field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner.
Background
When the cross flow fan operates, the cross flow fan comprises a stable working area and an unstable working area along with the change of the rotating speed of the cross flow fan. In a stable working interval, the air output of the air supply duct and the rotating speed of the cross flow fan are in a linear relation. As the rotation speed of the cross flow fan decreases, the cross flow fan enters an unstable working area, and the air output of the air supply duct decreases rapidly in a nonlinear manner. At this time, the air conditioner has discontinuous wheezing phenomenon, and the reverse suction can also occur.
In order to meet the demands of people on different air output rates of the air conditioner, the cross-flow air conditioner operates at a low speed, and at this time, the noise of the air conditioner is relatively large. With the rise of the living standard of people, in some situations, such as sleeping or learning, people have put higher demands on the noise of the air conditioner. In order to meet different usage situations of the air conditioner, noise of the air conditioner at low air output is required to be reduced.
Disclosure of Invention
An object of the present application is to provide an indoor unit of an air conditioner and an air conditioner, which are used for solving the above technical problems.
In particular, the present application provides an indoor unit of an air conditioner, comprising:
a cross flow fan;
an air supply volute extending from an outer periphery of the cross flow fan to an air supply port of the indoor unit and defining an air supply duct, and the air supply volute includes:
a fan section extending along the periphery of the cross-flow fan toward the air supply port;
and the air duct section is pivotally arranged at the extending end of the fan section on the first side, extends towards the air supply port on the second side and is configured to rotate between facing and backing the air supply duct so as to change the width of the air supply duct.
Optionally, the air supply volute further includes:
the fixed section is arranged at the air supply opening and is connected with the second side of the air duct section when the air duct section rotates to a first position enabling the air supply duct to be widest back to the air supply duct.
Optionally, the fan section, the air duct section and the fixed section form a complete continuous first air duct wall when the fixed section is connected to the second side of the air duct section.
Optionally, the air supply volute further includes:
the stroke section is arranged on the second side of the air duct section and extends out of the back air supply duct;
and the lap joint part is arranged on the travel section, and when the air duct section rotates to the second position with the narrowest air supply duct towards the air supply duct, the lap joint part is lapped on the fixed section to fix the air duct section.
Optionally, the indoor unit of the air conditioner further includes:
the first swing blade is pivotally arranged at the air supply port along the length direction of the air supply port, and is configured to at least abut against the second side of the air duct section to support the air duct section when the air duct section rotates to the second position.
Optionally, when the duct section is rotated to the second position, the first swing blade is rotated such that its leaf surface forms a complete continuous second duct wall with the duct section and the fan section.
Optionally, the indoor unit of the air conditioner further includes:
the second swing blades are respectively and pivotally arranged at the air supply port along the length direction of the air supply port and are configured to be independently rotated to a preset position in a controlled manner so as to enable the air flow of the air supply duct to be uniform.
Optionally, the fixing section gradually extends from the air supply port towards the air supply duct in an inclined manner.
Optionally, the duct section rotates through an angle in the range of 18 ° to 25 ° when the duct section rotates from the first position to the second position.
According to a second aspect of the present application, there is also provided an air conditioner comprising the air conditioner indoor unit according to any one of the above.
The application provides an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises a cross-flow fan and an air supply volute, and the air supply volute comprises a fan section and a wind channel section. The air supply volute is arranged in an extending mode from the periphery of the cross-flow fan to an air supply port of the indoor unit, and an air supply channel is defined. The fan section extends along the periphery of the cross-flow fan towards the air supply outlet. The first side of the air duct section is pivotally arranged at the extending end of the fan section, and the second side of the air duct section extends towards the air supply opening and is configured to rotate between facing and backing the air supply duct so as to change the width of the air supply duct. The air duct section can rotate towards and away from the air supply duct to change the width of the air supply duct. When the rotation speed of the cross-flow fan is reduced, the air duct section rotates towards the air supply duct so as to reduce the width of the air supply duct. The return flow area in the air supply duct can be forcedly deleted, and the noise generated by the indoor unit of the air conditioner is avoided.
The above, as well as additional objectives, advantages, and features of the present application will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present application when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the application 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 view of an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 2 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 3 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 4 is a simulation diagram of a high rotation speed of a cross flow fan in an indoor unit of an air conditioner according to an embodiment of the present application;
FIG. 5 is a simulation diagram of rotational speed in a cross-flow fan in an indoor unit of an air conditioner according to one embodiment of the present application;
fig. 6 is a simulation diagram of a low rotation speed of a cross flow fan in an indoor unit of an air conditioner according to an embodiment of the present application;
fig. 7 is a simulation diagram of narrowing of an air supply duct in an indoor unit of an air conditioner according to an embodiment of the present application.
Detailed Description
Fig. 1 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present application; fig. 2 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application; fig. 3 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application; fig. 4 is a simulation diagram of a high rotation speed of a cross flow fan in an indoor unit of an air conditioner according to an embodiment of the present application; FIG. 5 is a simulation diagram of rotational speed in a cross-flow fan in an indoor unit of an air conditioner according to one embodiment of the present application; fig. 6 is a simulation diagram of a low rotation speed of a cross flow fan in an indoor unit of an air conditioner according to an embodiment of the present application; fig. 7 is a simulation diagram of narrowing of an air supply duct in an indoor unit of an air conditioner according to an embodiment of the present application.
As shown in fig. 4 to 6, in the simulation, the light gray area in the supply air duct 310 indicates a relatively uniform air flow, and the black area in the supply air duct 310 indicates a wheezing area, i.e., a backflow area. When the rotation speed of the cross flow fan 200 decreases, a backflow area occurs in the supply air duct 310, and the backflow area may cause noise to be generated in the air conditioner indoor unit 10. As shown in fig. 4, the rotation speed of the cross flow fan 200 is high, and at this time, the air flow in most areas in the air supply duct 310 is relatively uniform, and the backflow area is small. As shown in fig. 5, the rotation speed of the cross flow fan 200 is moderate, and the area of the recirculation zone in the supply air duct 310 increases. As shown in fig. 6, the cross flow fan 200 is operated at a low rotational speed, and the area of the recirculation zone in the supply air duct 310 is further increased. The inventors have found that as the rotational speed of the cross flow fan 200 decreases, the area of the recirculation zone within the supply air duct 310 increases gradually, which may result in an increased noise of the air conditioner indoor unit 10.
As shown in fig. 1 to 3, the present embodiment provides an air conditioner indoor unit 10, the air conditioner indoor unit 10 including a cross flow fan 200 and a blower scroll 300, wherein the blower scroll 300 includes a fan section 320 and an air duct section 330. The air-sending volute 300 extends from the outer periphery of the cross flow fan 200 to the air-sending port 100 of the indoor unit, and defines an air-sending duct 310. The fan section 320 extends toward the supply air port 100 along the outer circumference of the cross flow fan 200. The air duct section 330 is pivotally disposed at an extended end 321 of the fan section 320 at a first side thereof extending toward the air supply opening 100 and configured to rotate between facing and facing away from the air supply duct 310 to vary the width of the air supply duct 310.
In the present embodiment, the type of the air conditioner is not limited, and for example, the air conditioner may be a wall-mounted air conditioner or a floor air conditioner. As a specific example, as shown in fig. 1, the air conditioner in this example is a floor air conditioner. In this embodiment, a floor air conditioner will be described as an example.
Cross-flow fan 200, also known as a crossflow fan, is generally cylindrical in shape. The impeller of the cross-flow fan 200 is multi-bladed, having forward multi-bladed blades. When the impeller rotates, air flow enters the blade cascade from the opening of the impeller, passes through the inside of the impeller, and is discharged into the air supply volute 300 from the other blade cascade to form working air flow. In the present embodiment, the length of the cross flow fan 200 is not limited. Taking a vertical air conditioner as an example, as shown in fig. 1, the cross-flow fan 200 is in a long cylindrical shape, and the length of the cross-flow fan 200 is adapted to the length of the air supply port 100, that is, the length of the cross-flow fan 200 is substantially the same as the length of the air supply port 100.
As shown in fig. 1 and 3, taking a floor air conditioner as an example, the air supply duct 310 supplies air from the rear side of the air conditioner indoor unit 10, and the front side supplies air, that is, the air supply duct 310 extends from the rear side to the front side of the air conditioner indoor unit 10. In the present embodiment, the specific configuration of the blower scroll 300 may be selected as needed. As a specific embodiment, as shown in fig. 2 and 3, the blower volute 300 includes a fan section 320, a duct section 330, and a volute tongue 390. And the fan section 320, the air duct section 330, and the volute tongue 390 cooperate to form the supply air duct 310. Openings are formed on the upper and lower sides of the air supply duct 310, and the casing of the indoor unit 10 of the air conditioner covers the openings to prevent air leakage from the upper and lower sides of the air supply duct 310. In other embodiments, the blower volute 300 may further include a connecting wall for blocking the upper and lower openings of the blower duct 310, so as not to leak air from the upper and lower sides of the blower duct 310.
In the present embodiment, the volute tongue 390 is spaced apart from the fan section 320 along the outer periphery of the cross flow fan 200, and the volute tongue 390 extends from the outer periphery of the cross flow fan 200 to the air supply port 100. And the volute tongue 390 is disposed opposite the fan section 320 and the air duct section 330, the volute tongue 390 cooperating with the fan section 320 and the air duct section 330 to form the supply air duct 310. The volute tongue 390 and the fan section 320 are spaced along the outer circumference of the cross-flow fan 200 such that a portion of the cascade of the cross-flow fan 200 is located outside the supply air duct 310 and another portion of the cascade of the cross-flow fan 200 is located inside the supply air duct 310. The air flow enters the cross flow fan 200 from one part of the blade cascade and passes through the cross flow fan 200, and is discharged into the air supply duct 310 from the other part of the blade cascade.
As shown in fig. 2 and 3, the fan section 320 extends toward the supply air port 100 along the outer circumference of the cross flow fan 200; that is, the fan section 320 is disposed along the outer circumference of the cross flow fan 200, and one end of the fan section 320 faces the air supply port 100 while being disposed along the outer circumference of the cross flow fan 200, which is referred to as an extension 321. Alternatively, the fan section 320 may be arc-shaped and may be disposed outside the cross flow fan 200 to surround the cross flow fan 200. In this embodiment, the curvature and the size of the fan section 320 are not specifically limited, that is, the area of the fan section 320 surrounding the cross flow fan 200 is not limited, the distance between the fan section 320 and the cross flow fan 200 is not limited, and may be selected according to the need. For example, the spacing may be graded.
The duct section 330 is located downstream of the fan section 320 along the flow direction of the air in the supply air duct 310, i.e., the duct section 330 is closer to the supply air port 100. The curvature of the air duct section 330 is smaller than the curvature of the fan section 320, i.e., the fan section 320 is curved to a greater extent than the air duct section 330. The first side of the air duct section 330 is pivotally disposed at the extending end 321 of the fan section 320, so that the inner wall of the air duct 310 is relatively continuous and smooth when the air duct section 330 rotates to change the width of the air duct 310, and the air outlet of the air duct 310 is relatively smooth. The first side of the duct section 330 is disposed opposite the second side of the duct section 330, the first side of the duct section 330 being upstream of the flow of air in the supply duct 310 and the second side of the duct section 330 being downstream of the flow of air in the supply duct 310. Alternatively, it is understood that a first side of the duct section 330 is remote from the air supply opening 100, proximate to the extended end 321 of the fan section 320, and a second side of the duct section 330 is proximate to the air supply opening 100. The duct section 330 is configured to rotate between facing and facing away from the supply air duct 310, i.e., the duct section 330 is configured to rotate between facing and facing away from the volute to vary the width of the supply air duct 310. In this embodiment, the rotatable angle range of the air duct section 330 is not limited, and may be set according to a specific model and specific needs, and the air duct section 330 may be rotated to change the width of the air supply duct 310.
As shown in fig. 4 to 6, when the rotation speed of the cross flow fan 200 decreases, the air volume in the air supply duct 310 decreases, and a backflow area occurs in the air supply duct 310. The lower the rotation speed of the cross flow fan 200, the larger the recirculation zone in the air supply duct 310. In the present embodiment, the duct section 330 is configured to rotate toward the supply air duct 310 so that the width of the supply air duct 310 becomes smaller in the case where the wind speed of the cross flow fan 200 decreases. As shown in fig. 7, this can forcibly delete the return area in the supply air duct 310, thereby avoiding noise from being generated in the air conditioner indoor unit 10.
Based on the above analysis, the duct section 330 can be rotated toward and away from the supply duct 310 to vary the width of the supply duct 310. When the rotation speed of the cross flow fan 200 decreases, the duct section 330 rotates toward the supply air duct 310, so that the width of the supply air duct 310 decreases. This can forcibly delete the return area in the supply air duct 310, and prevent noise from being generated in the air conditioner indoor unit 10.
In other embodiments, the blower volute 300 further includes a fixing section 340, where the fixing section 340 is disposed at the air outlet 100, and is connected to the second side of the air duct section 330 when the air duct section 330 rotates away from the air duct 310 to a first position where the air duct 310 is widest. In general, as shown in fig. 2 and 3, the fixing section 340 is gradually inclined from the air outlet 100 toward the inside of the air supply duct 310, and if the fixing section 340 and the air duct section 330 rotate together, the inner wall of the air supply duct 310 is likely to be discontinuous when the fixing section rotates to abut against the first swing blade 400 to form the air supply duct 310 with a narrower width. Secondly, if the air duct section 330 directly abuts against the air supply outlet 100, people can easily observe that the air duct section 330 abuts against the air supply outlet 100, and the appearance is affected.
In other embodiments, the fan section 320, the air duct section 330, and the fixed section 340 form a complete continuous first air duct wall 370 when the fixed section 340 is joined to the second side of the air duct section 330. That is, the fan section 320, the air duct section 330 and the fixing section 340 form a complete and continuous inner wall of the duct wall, that is, the inner wall of the fan section 320, the inner wall of the air duct section 330 and the inner wall of the fixing section 340 are not uneven, and gaps, uneven and the like are not present at the joint. This allows the gas to smoothly flow in the supply duct 310, avoiding whistle blowing, and reducing noise.
In other embodiments, the blower volute 300 further includes a stroke section 350 and a lap portion 360, the stroke section 350 is disposed on the second side of the air duct section 330, and the stroke section 350 extends away from the blower duct 310. The overlap portion 360 is disposed on the travel section 350, and overlaps the fixing section 340 to fix the air duct section 330 when the air duct section 330 rotates toward the air duct 310 to the second position where the air duct 310 is narrowest.
In the present embodiment, the specific structure and shape of the stroke section 350 are not limited, and may be selected as needed. As a specific embodiment, as shown in fig. 2 and 3, the stroke section 350 has a plate shape. It will be apparent that this is by way of example only and not by way of example only. For example, the stroke section 350 may be shaped as an elongated support bar or the like. The stroke segment 350 extends away from the supply air duct 310, i.e., the stroke segment 350 extends away from the inside of the duct segment 330.
In the present embodiment, the specific structure and shape of the overlap portion 360 are not limited, and may be selected as needed. As a specific embodiment, as shown in fig. 2 and 3, the overlap portion 360 has a plate shape. It will be apparent that this is by way of example only and not by way of example only. The overlap 360 and the travel section 350 cooperate to define a rotational range of the air duct section 330, while the overlap 360 is used to secure the air duct section 330 for preventing the air duct section 330 from rattling.
In other embodiments, the indoor unit 10 further includes a first swing blade 400, where the first swing blade 400 is pivotally disposed at the air supply port 100 along a length direction of the air supply port 100, and is configured to abut at least a second side of the air duct section 330 to support the air duct section 330 when the air duct section 330 is rotated to the second position. In this embodiment, the specific manner in which the first swing blade 400 is pivotally disposed at the air supply port 100 is not limited, and as a specific embodiment, as shown in fig. 2 and 3, the air conditioner indoor unit 10 further includes a pivot shaft, and the pivot shaft is disposed along the length direction of the air conditioner indoor unit 10, and the first swing blade 400 is pivotally disposed on the pivot shaft. When the duct section 330 rotates to the first position, the first swing blade 400 is configured to rotate to the corresponding position to guide wind so as to make wind in the supply duct 310 more uniform. When the air duct section 330 rotates to the second position, the first swing blade 400 can rotate to the preset position to support and abut against the second side of the volute tongue 390, so as to fix the volute tongue 390.
In other embodiments, when the air duct section 330 is rotated to the second position, the first swing blade 400 is rotated such that its leaf surface forms a complete continuous second air duct wall 380 with the air duct section 330 and the fan section 320. That is, as shown in fig. 3, the first swing blade 400 is rotated to a vertical state and is slightly inclined. That is, the first swing blade 400 is rotated such that its blade face is approximately on the extended face of the air duct section 330 to form a complete continuous second air duct wall 380 with the air duct section 330 and the fan section 320. In this embodiment, the state of the first swing blade 400 after rotation is not limited, and may be selected according to specific needs and specific models. As a specific example, as shown in fig. 3, the first swing blade 400 is rotated to an acute angle ranging from 75 ° to 85 ° with respect to the horizontal plane, such that the leaf surface of the first swing blade 400 forms a complete continuous second air duct wall 380 with the air duct section 330 and the air fan section 320.
When the duct section 330 rotates toward the air supply duct 310 to the second position, as shown in fig. 2 and 3, the second side of the duct section 330 is further from the air supply port 100, and the first swing blade 400 rotates to form a complete and continuous second duct wall 380 with the duct section 330 and the fan section 320 on the blade surface, so as to form the complete air supply duct 310.
In other embodiments, the indoor unit 10 further includes a plurality of second swing blades 500, where the second swing blades 500 are pivotally disposed at the air supply port 100 along the length direction of the air supply port 100, and configured to be independently rotated to a preset position in a controlled manner to make the air flow in the air supply duct 310 uniform.
In the present embodiment, the specific manner of pivoting the second swing blade 500 is not limited, and the second swing blade 500 can rotate at the air supply port 100. In this embodiment, the preset position is not limited specifically, and the preset position may be set specifically according to the requirement, which can make the air flow in the air supply duct 310 more uniform. The second swing blade 500 near the volute tongue 390 rotates to gradually incline from the air supply port 100 toward the volute tongue 390. That is, as shown in fig. 3, the second swing blade 500 located at the left side is rotated counterclockwise from the vertical state. The angle through which the second swing blade 500 positioned at the left side is rotated is not particularly limited, and may be selected as required, and in this embodiment, the angle through which the second swing blade 500 positioned at the left side is rotated ranges from 5 ° to 15 °. This can make the air flow in the supply air duct 310 more uniform, and reduce noise of the air conditioner indoor unit 10. In the present embodiment, the number of the second swing blades 500 is not limited, and may be selected as required, and as shown in fig. 2 and 3, the number of the second swing blades 500 is two, which is obviously only exemplary and not exclusive.
In other embodiments, the fixing segment 340 extends gradually from the air supply outlet 100 toward the inside of the air supply duct 310. That is, the fixing section 340 is gradually inclined away from the volute tongue 390 along the direction of the air flow in the air supply duct 310, which makes the width of the air supply port 100 relatively large and the air supply range relatively wide.
In other embodiments, the angle through which the air chute section 330 rotates is in the range of 18 ° to 25 ° when the air chute section 330 rotates from the first position to the second position. In this embodiment, when the air duct section 330 rotates from the first position to the second position, the angle range through which the air duct section 330 rotates is not particularly limited, and may be selected as required. Specifically, as shown in FIG. 3, the air duct section 330 rotates at an angle of 22. This can eliminate the recirculation zone, reduce noise of the air conditioner indoor unit 10, and does not affect the air supply quantity.
The overlap 360 extends a length that is 1 to 6 times the wall thickness of the tunnel section 330. Specifically, as shown in fig. 2 and 3, the overlap 360 extends a length that is 3 times the wall thickness of the tunnel segment 330. This secures both the duct section 330 and the strength of the blower volute 300.
In other embodiments, as the rotational speed of cross-flow fan 200 decreases, duct segment 330 rotates toward supply duct 310 to narrow supply duct 310. When the rotation speed of the cross flow fan 200 is reduced, a backflow area is easy to appear, the air supply duct 310 is narrowed, and the backflow area can be forcedly deleted, so that noise is avoided.
The fixing section 340 is fixed at the air supply port 100, and when the air duct section 330 rotates to the first position, the second side of the air duct section 330 is connected with the fixing section 340. In this embodiment, the specific length of the air duct section 330 along the airflow direction in the air supply duct 310 is not limited, and the air duct section 330 does not extend out of the air supply port 100 in the rotating process according to the specific model limitation, that is, the air duct section 330 is always located in the air supply port 100 in the rotating process. As a specific example, as shown in fig. 2 and 3, the length of the tunnel section 330 is 3/4 of the sum of the length of the tunnel section 330 and the length of the fixed section 340, and the length of the tunnel section 330 is 1/3 of the sum of the lengths of the first tunnel walls 370.
According to a second aspect of the present application, there is also provided an air conditioner comprising the air conditioner indoor unit 10 according to any one of the above. Since the air conditioner includes any one of the air conditioner indoor units 10, the air conditioner has the technical effects of any one of the air conditioner indoor units 10, and will not be described in detail herein.
In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying 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 application, 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 "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be fixed, removable, or integral, for example; 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 application 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.
Unless otherwise defined, all terms (including technical and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
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 application. 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.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the application have been shown and described herein in detail, many other variations or modifications of the application consistent with the principles of the application may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the application. Accordingly, the scope of the present application should be understood and deemed to cover all such other variations or modifications.
Claims (7)
1. An indoor unit of an air conditioner, comprising:
a cross flow fan;
an air supply volute extending from an outer periphery of the cross flow fan to an air supply port of the indoor unit and defining an air supply duct, and comprising:
a fan section extending along the outer periphery of the cross flow fan toward the air supply port;
the first side of the air duct section is pivotally arranged at the extending end of the fan section, the second side of the air duct section extends towards the air supply opening and is configured to rotate between facing and facing away from the air supply duct so as to change the width of the air supply duct;
the fixed section is arranged at the air supply port and is connected with the second side of the air duct section when the air duct section rotates to a first position at which the air supply duct is widest away from the air supply duct;
the stroke section is arranged on the second side of the air duct section and extends out of the air supply duct;
the lap joint part is arranged on the travel section, and when the air duct section rotates towards the air supply duct to a second position at which the air supply duct is narrowest, the lap joint part is lapped on the fixed section to fix the air duct section;
the first swing blade is pivotally arranged at the air supply port along the length direction of the air supply port, and is configured to at least abut against the second side of the air duct section to support the air duct section when the air duct section rotates to the second position.
2. The indoor unit of claim 1, wherein,
when the fixed section is connected with the second side of the air duct section, the fan section, the air duct section and the fixed section form a complete and continuous first air duct wall.
3. The indoor unit of claim 1, wherein,
when the air duct section rotates to the second position, the first swing blade rotates to enable the blade surface of the first swing blade, the air duct section and the fan section to form a complete and continuous second air duct wall.
4. The indoor unit of an air conditioner according to claim 3, further comprising:
the second swing blades are respectively and pivotally arranged at the air supply opening along the length direction of the air supply opening and are configured to be independently rotated to a preset position in a controlled manner so as to enable the air flow of the air supply channel to be uniform.
5. The indoor unit of claim 1, wherein,
the fixed section gradually extends towards the air supply duct from the air supply opening in an inclined mode.
6. The air conditioner indoor unit of claim 1, wherein the duct section rotates through an angle ranging from 18 ° to 25 ° when the duct section rotates from the first position to the second position.
7. An air conditioner comprising the air conditioner indoor unit according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412252.XA CN114777204B (en) | 2022-04-19 | 2022-04-19 | Indoor unit of air conditioner and air conditioner |
| PCT/CN2022/128668 WO2023202028A1 (en) | 2022-04-19 | 2022-10-31 | Air conditioner indoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412252.XA CN114777204B (en) | 2022-04-19 | 2022-04-19 | Indoor unit of air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114777204A CN114777204A (en) | 2022-07-22 |
| CN114777204B true CN114777204B (en) | 2023-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210412252.XA Active CN114777204B (en) | 2022-04-19 | 2022-04-19 | Indoor unit of air conditioner and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114777204B (en) |
| WO (1) | WO2023202028A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777204B (en) * | 2022-04-19 | 2023-10-20 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner and air conditioner |
| CN115435396A (en) * | 2022-09-19 | 2022-12-06 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204227551U (en) * | 2014-10-27 | 2015-03-25 | 广州华凌制冷设备有限公司 | Air conditioner room unit and air-conditioner |
| CN104976744A (en) * | 2014-04-14 | 2015-10-14 | 海尔集团公司 | Air flue structure of air conditioner indoor unit |
| CN209857187U (en) * | 2019-04-30 | 2019-12-27 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner with same |
| CN110873450A (en) * | 2019-11-27 | 2020-03-10 | 宁波奥克斯电气股份有限公司 | Volute tongue structure and air conditioner |
| JP2020176803A (en) * | 2019-04-22 | 2020-10-29 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777200B (en) * | 2022-04-19 | 2023-12-19 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner and air conditioner |
| CN114777204B (en) * | 2022-04-19 | 2023-10-20 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner and air conditioner |
-
2022
- 2022-04-19 CN CN202210412252.XA patent/CN114777204B/en active Active
- 2022-10-31 WO PCT/CN2022/128668 patent/WO2023202028A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976744A (en) * | 2014-04-14 | 2015-10-14 | 海尔集团公司 | Air flue structure of air conditioner indoor unit |
| CN204227551U (en) * | 2014-10-27 | 2015-03-25 | 广州华凌制冷设备有限公司 | Air conditioner room unit and air-conditioner |
| JP2020176803A (en) * | 2019-04-22 | 2020-10-29 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN209857187U (en) * | 2019-04-30 | 2019-12-27 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner with same |
| CN110873450A (en) * | 2019-11-27 | 2020-03-10 | 宁波奥克斯电气股份有限公司 | Volute tongue structure and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023202028A1 (en) | 2023-10-26 |
| CN114777204A (en) | 2022-07-22 |
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