CN114777204A - Air conditioner indoor unit and air conditioner - Google Patents
Air conditioner indoor unit and air conditioner Download PDFInfo
- Publication number
- CN114777204A CN114777204A CN202210412252.XA CN202210412252A CN114777204A CN 114777204 A CN114777204 A CN 114777204A CN 202210412252 A CN202210412252 A CN 202210412252A CN 114777204 A CN114777204 A CN 114777204A
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- Prior art keywords
- air
- section
- duct
- air duct
- air supply
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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
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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
- F24F13/082—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
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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
- F24F13/24—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 invention 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, wherein the air supply volute comprises a fan section and an air duct section. The air supply volute extends from the periphery of the cross flow fan to an air supply outlet of the indoor unit and defines an air supply duct. The fan section extends along the outer periphery of the cross flow fan toward the supply air outlet. The first side of the duct section is pivotally disposed at the extended end of the fan section, and the second side of the duct section extends toward the supply air outlet and is configured to rotate between a forward and a backward supply duct to vary the width of the supply duct. The air duct section can rotate towards and back to the air supply duct to change the width of the air supply duct. When the rotating speed of the cross-flow fan is reduced, the air duct section rotates towards the air supply duct, so that the width of the air supply duct is reduced. The air conditioner can forcibly delete the backflow area in the air supply duct, and the indoor unit of the air conditioner is prevented from generating noise.
Description
Technical Field
The invention 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 runs, the cross-flow fan comprises a stable working interval and an unstable working interval 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. Along with the reduction of the rotating speed of the cross-flow fan, the cross-flow fan enters an unstable working range, and the air output of the air supply duct is rapidly reduced in a nonlinear manner. In this case, the air conditioner suffers from discontinuous breathing and may also suffer from reverse suction.
In order to meet the requirements of people on different air output quantities of the air conditioner, the cross-flow air blower can run at a low speed, and at the moment, the noise of the air conditioner is relatively large. With the improvement of living standard of people, under certain conditions, such as sleeping or learning, people put higher requirements on the noise of the air conditioner. In order to meet different use scenes of the air conditioner, the noise of the air conditioner at low air output is required to be reduced.
Disclosure of Invention
An object of the present invention is to provide an indoor unit of an air conditioner and an air conditioner, which are used to solve the above technical problems.
In particular, the present invention provides an indoor unit of an air conditioner, comprising:
a cross-flow fan;
the air supply spiral case extends the setting to the supply-air outlet of indoor set from cross flow fan's periphery to inject the air supply wind channel, and the air supply spiral case includes:
a fan section extending toward the air supply outlet along the outer periphery of the cross flow fan;
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 outlet on the second side and is configured to rotate between the direction towards and the back towards the air supply duct so as to change the width of the air supply duct.
Optionally, the blower volute further comprises:
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 back to the air supply duct to a first position enabling the air supply duct to be widest.
Optionally, when the fixed segment is connected to the second side of the air duct segment, the fan segment, the air duct segment, and the fixed segment form a complete continuous first air duct wall.
Optionally, the blower volute further comprises:
the stroke section is arranged on the second side of the air duct section and extends out of the air supply duct in a back direction;
overlap joint portion sets up in stroke portion, when the wind channel section rotates to the narrowest second position in air supply duct towards air supply duct, overlap joint in order to fix the wind channel section on the fixed segment.
Optionally, the air conditioner indoor unit further comprises:
the first swing blade is pivotally arranged at the air supply opening along the length direction of the air supply opening, and when the air duct section rotates to the second position, the first swing blade is configured to at least abut against the second side of the air duct section to support the air duct section.
Optionally, 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 to form a complete continuous second air duct wall with the air duct section and the fan section.
Optionally, the air conditioner indoor unit further comprises:
the second swing blades are respectively arranged at the air supply outlet in a pivoting manner along the length direction of the air supply outlet and are configured to be controlled to independently rotate to a preset position so as to enable the air flow of the air supply air channel to be uniform.
Optionally, the fixed section extends from the supply opening gradually towards the inside of the air duct in an inclined manner.
Optionally, the range of angles through which the tunnel section rotates when rotated from the first position to the second position is 18 ° to 25 °.
According to a second aspect of the present invention, there is also provided an air conditioner comprising an air conditioner indoor unit as defined in any one of the above.
The invention 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, wherein the air supply volute comprises a fan section and an air duct section. The air supply volute extends from the periphery of the cross-flow fan to an air supply outlet of the indoor unit and defines an air supply duct. The fan section extends along the outer periphery of the cross flow fan toward the supply air outlet. The first side of the duct section is pivotally disposed at the extended end of the fan section, and the second side of the duct section extends toward the supply air outlet and is configured to rotate between a forward and a backward supply duct to vary the width of the supply duct. The air duct section can rotate towards and back to the air supply duct to change the width of the air supply duct. When the rotating speed of the cross-flow fan is reduced, the air duct section rotates towards the air supply duct, so that the width of the air supply duct is reduced. This can force the return flow area in the air supply duct to be deleted, and the noise produced by the indoor unit of the air conditioner can be avoided.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily to scale. In the drawings:
fig. 1 is a schematic diagram of an air conditioner indoor unit according to one embodiment of the present invention;
fig. 2 is a sectional view of an air conditioner indoor unit according to an embodiment of the present invention;
fig. 3 is a sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a simulation of a crossflow blower in an air conditioner indoor unit at high rotational speed in accordance with an embodiment of the present invention;
fig. 5 is a simulation diagram of the rotational speed of a cross-flow fan in an air conditioner indoor unit according to an embodiment of the present invention;
FIG. 6 is a simulation of a low rotational speed cross-flow fan in an air conditioner indoor unit according to an embodiment of the present invention;
fig. 7 is a simulation diagram illustrating a narrowing of a supply air duct in an indoor unit of an air conditioner according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic diagram of an air conditioner indoor unit according to one embodiment of the present invention; fig. 2 is a sectional view of an air conditioner indoor unit according to an embodiment of the present invention; fig. 3 is a sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention; FIG. 4 is a simulation of a cross-flow fan in an air conditioner indoor unit at a high rotational speed according to an embodiment of the present invention; fig. 5 is a simulation diagram of the rotational speed of a cross-flow fan in an air conditioner indoor unit according to an embodiment of the present invention; FIG. 6 is a simulation of a low rotational speed cross-flow fan in an air conditioner indoor unit according to an embodiment of the present invention; fig. 7 is a simulation diagram illustrating a narrowing of a supply air duct in an indoor unit of an air conditioner according to an embodiment of the present invention.
As shown in fig. 4 to 6, in the simulation, a light gray area in the supply air duct 310 indicates a relatively uniform air flow, and a black area in the supply air duct 310 indicates a wheeze area, i.e., a return area. When the rotational speed of the cross-flow fan 200 is reduced, a backflow area may occur in the supply air duct 310, and the backflow area may cause noise to be generated in the indoor unit 10 of the air conditioner. As shown in fig. 4, when the rotational speed of crossflow blower 200 is high, the airflow in the large area of supply air duct 310 is relatively uniform, and the recirculation area is relatively small. As shown in fig. 5, the area of the return flow region in the supply air duct 310 increases when the rotational speed of the cross-flow fan 200 is medium. As shown in fig. 6, the cross-flow fan 200 is operated at a low rotation 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 return flow region in the supply air duct 310 increases gradually, which results in greater and greater noise in the 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 includes a cross-flow fan 200 and a supply volute 300, wherein the supply volute 300 includes a fan section 320 and a duct section 330. The supply volute 300 is extended from the outer circumference of the cross flow fan 200 to the supply outlet 100 of the indoor unit, and defines a supply air duct 310. The fan section 320 extends along the outer circumference of the cross flow fan 200 toward the blower opening 100. A first side of the duct section 330 is pivotally mounted to the extended end 321 of the fan section 320 and a second side thereof extends towards the supply air outlet 100 and is configured to pivot between facing and facing away from the supply air duct 310 to vary the width of the supply air duct 310.
In the present embodiment, the type of the air conditioner is not limited, and the air conditioner may be a wall-mounted air conditioner or an upright air conditioner, for example. As a specific example, as shown in fig. 1, the air conditioner in this embodiment is a floor air conditioner. In the present embodiment, a floor air conditioner will be described as an example.
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 discharges air from the front side, 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 supply air volute 300 may be selected as desired. As a specific embodiment, as shown in FIGS. 2 and 3, the blower volute 300 includes a fan section 320, an air duct section 330, and a volute tongue 390. And the fan section 320, air duct section 330, and volute tongue 390 cooperate to form the supply air duct 310. Openings are formed at upper and lower sides of the air supply duct 310, and a housing of the indoor unit 10 of the air conditioner is covered on the openings to prevent air leakage from the upper and lower sides of the air supply duct 310. In some other embodiments, the supply air volute 300 may further include a connecting wall for blocking the upper and lower openings of the supply air duct 310 so as not to leak air from the upper and lower sides of the supply air duct 310.
In this embodiment, the volute tongue 390 and the fan section 320 are spaced apart along the outer circumference of the crossflow blower 200, and the volute tongue 390 extends from the outer circumference of the crossflow blower 200 to the blower opening 100. And the volute tongue 390 is disposed opposite the fan section 320 and the duct section 330, and the volute tongue 390 cooperates with the fan section 320 and the 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 part of the cascade of the cross flow fan 200 is positioned outside the supply air duct 310 and the other part of the cascade of the cross flow fan 200 is positioned inside the supply air duct 310. The airflow enters the inside of the cross-flow fan 200 from a part of the blade cascade, passes through the cross-flow fan 200, and is discharged into the supply air duct 310 from another part of the blade cascade.
As shown in fig. 2 and 3, the fan section 320 extends along the outer periphery of the cross flow fan 200 toward the blower opening 100; 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 is directed toward the air blowing opening 100, which is referred to as an extension end 321, while being disposed along the outer circumference of the cross flow fan 200. Alternatively, the fan section 320 may be arc-shaped and disposed outside the crossflow blower 200 to surround the crossflow blower 200. In this embodiment, the curvature and size of the fan segment 320 are not specifically limited, that is, the area of the cross-flow fan 200 surrounded by the fan segment 320 is not limited, and the distance between the fan segment 320 and the cross-flow fan 200 is not limited, and can be selected as needed. For example, the pitch may be gradual.
The duct section 330 is located downstream of the fan section 320 in the flow direction of air in the supply duct 310, i.e., the duct section 330 is closer to the supply opening 100. The curvature of the air duct section 330 is less than the curvature of the fan section 320, i.e., the fan section 320 is bent more 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, which makes the inner wall of the air duct 310 continuous and smooth when the air duct section 330 rotates to change the width of the air duct 310, so that the air outlet of the air duct 310 is smooth. The first side of the air duct section 330 and the second side of the air duct section 330 are disposed opposite to each other, the first side of the air duct section 330 is located upstream of the airflow in the supply air duct 310, and the second side of the air duct section 330 is located downstream of the airflow in the supply air duct 310. Alternatively, it is understood that a first side of the air duct section 330 is distal from the supply air opening 100, proximal to the extended end 321 of the fan section 320, and a second side of the air duct section 330 is proximal to the supply air opening 100. The duct section 330 is configured to rotate between the towards and away from the supply air duct 310, i.e. the duct section 330 is configured to rotate between the towards and away from the volute, to vary the width of the supply air duct 310. In this embodiment, the range of the rotatable angle of the air duct section 330 is not limited, and may be set according to the specific model and the specific requirement, 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 rotational speed of crossflow blower 200 is reduced, the amount of air in supply air duct 310 is reduced, and a return flow region is formed in supply air duct 310. Further, the lower the rotational speed of crossflow blower 200, the larger the recirculation zone in supply air duct 310. In the present embodiment, air duct section 330 is configured to rotate toward supply air duct 310 so that the width of supply air duct 310 becomes smaller in the case where the wind speed of crossflow blower 200 decreases. As shown in fig. 7, this can forcibly remove the backflow area in the supply air duct 310, thereby preventing the indoor unit 10 of the air conditioner from generating noise.
Based on the above analysis, the duct section 330 can be rotated toward and away from the supply air duct 310 to change the width of the supply air duct 310. When the rotational speed of crossflow blower 200 is reduced, duct section 330 rotates toward supply duct 310 to reduce the width of supply duct 310. This can forcibly delete the backflow area in the supply air duct 310, thereby preventing the indoor unit 10 of the air conditioner from generating noise.
In some other embodiments, the blower volute 300 further includes a fixed section 340, and the fixed section 340 is disposed at the blower 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 blower air duct 310 to the first position where the blower air duct 310 is widest. Generally, as shown in fig. 2 and 3, the fixing section 340 is inclined from the air outlet 100 toward the inside of the air duct, and if the fixing section 340 rotates together with the air duct section 330, the inner wall of the narrow air duct 310 is easily discontinuous when the fixing section 340 rotates to collide with the first swing vane 400 to form the narrow air duct 310. Secondly, if the air duct section 330 directly collides with the air supply opening 100, people can easily observe that the air duct section 330 collides with the air supply opening 100, which affects the appearance.
In other embodiments, the fan section 320, the air duct section 330, and the stationary section 340 form a complete continuous first air duct wall 370 when the stationary section 340 is attached to the second side of the air duct section 330. That is, the fan segment 320, the air duct segment 330 and the fixing segment 340 form a complete and continuous inner wall of the duct wall, that is, there is no unevenness on the inner wall of the fan segment 320, the inner wall of the air duct segment 330 and the inner wall of the fixing segment 340, and there is no gap and unevenness on the joint. This can make the gas smoothly flow in air duct 310, avoids blowing the whistle, reduces the noise.
In other embodiments, the supply volute 300 further includes a travel section 350 and a bridge 360, the travel section 350 being disposed on a second side of the air duct section 330, the travel section 350 extending away from the supply air duct 310. The overlapping portion 360 is disposed at the stroke portion, and overlaps the fixed portion 340 to fix the air duct portion 330 when the air duct portion 330 rotates to the second position where the air duct 310 is the narrowest toward the air duct 310.
In the present embodiment, the specific structure and shape of the stroke section 350 are not limited, and can be selected according to the requirement. 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 merely exemplary and not exclusive. For example, the stroke section 350 may be in the shape of an elongated support bar or the like. The stroke section 350 projects away from the supply air duct 310, i.e., the stroke section 350 projects away from the inside of the duct section 330.
In this embodiment, the specific structure and shape of the overlapping portion 360 are not limited, and may be selected as needed. As a specific embodiment, as shown in fig. 2 and 3, the lap portion 360 has a plate shape. It will be clear that this is exemplary only and not exclusive. The overlapping portion 360 and the stroke portion are matched to limit the rotation range of the air duct section 330, and the overlapping portion 360 is used for fixing the air duct section 330 and preventing the air duct section 330 from shaking.
In some other embodiments, the air conditioner indoor unit 10 further includes a first swing blade 400, the first swing blade 400 is pivotally disposed at the air blowing opening 100 along the length direction of the air blowing opening 100, and configured to at least abut against the second side of the air duct section 330 to support the air duct section 330 when the air duct section 330 rotates to the second position. In this embodiment, the specific manner of pivotally disposing the first swing vane 400 at the air supply outlet 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 axis disposed along the length direction of the air conditioner indoor unit 10, and the first swing vane 400 is pivotally disposed on the pivot axis. When the air duct section 330 rotates to the first position, the first swing vane 400 is configured to rotate to the corresponding position to guide the air so as to make the air in the air duct more uniform. When the air duct section 330 rotates to the second position, the first swing blade 400 can rotate to a predetermined position to support and abut against the second side of the volute tongue 390 for fixing the volute tongue 390.
In other embodiments, when the air duct section 330 is rotated to the second position, the first swing vane 400 is rotated such that its vane face 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 vane 400 rotates to a vertical state and is slightly inclined. That is, the first swing blade 400 is rotated such that its blade surface is approximately located on the extended surface 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 vane 400 after rotation is not limited, and can 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, so that the blade surface of the first swing blade 400 forms a complete continuous second air duct wall 380 with the air duct section 330 and the fan section 320.
When the air duct section 330 rotates to the second position toward the air supply duct 310, as shown in fig. 2 and 3, the second side of the air duct section 330 is further away from the air supply opening 100, and the first swing vane 400 rotates to make the vane surface, the air duct section 330 and the fan section 320 form a complete and continuous second air duct wall 380, so as to form a complete air supply duct 310.
In some other embodiments, the air conditioner indoor unit 10 further includes a plurality of second swing vanes 500, and the plurality of second swing vanes 500 are respectively pivotally disposed at the air blowing opening 100 along the length direction of the air blowing opening 100, and are configured to be controlled to independently rotate to a preset position to make the air flow of the air blowing duct 310 uniform.
In this embodiment, a specific manner of pivoting the second swing vane 500 is not limited, and the second swing vane 500 may rotate at the air blowing port 100. In this embodiment, the preset position is not specifically limited, and the preset position can be specifically set as required, so that the air flow in the air duct is more uniform. The second swing blade 500 adjacent to the volute tongue 390 is rotated to be gradually inclined toward the volute tongue 390 from the supply port 100. That is, as shown in fig. 3, the second swing vane 500 positioned at the left side is rotated counterclockwise from the vertical state. The angle through which the second swing blade 500 on the left side rotates is not particularly limited, and may be selected according to the requirement, and in this embodiment, the angle through which the second swing blade 500 on the left side rotates ranges from 5 ° to 15 °. This can make the air flow in the supply air duct 310 more uniform, and reduce the noise of the indoor unit 10 of the air conditioner. In this embodiment, the number of the second swing vanes 500 is not limited, and can be selected according to the requirement, as shown in fig. 2 and fig. 3, the number of the second swing vanes 500 is two, which is obviously only exemplary and not exclusive.
In other embodiments, the fixed segment 340 extends gradually obliquely from the supply air outlet 100 toward the inside of the duct. That is, the fixed segment 340 gradually inclines away from the volute 390 along the direction of the airflow in the air duct 310, which makes the width of the air outlet 100 larger and the air supply range wider.
In other embodiments, the range of angles through which the air chute section 330 rotates as the air chute section 330 rotates from the first position to the second position is 18 ° to 25 °. In this embodiment, when the air duct section 330 rotates from the first position to the second position, the angle range that the air duct section 330 rotates through is not specifically limited, and can be selected as required. Specifically, as shown in FIG. 3, the air duct section 330 is rotated through an angle of 22. This can remove the backflow zone, reduce the noise of the air conditioner indoor unit 10, and does not affect the amount of air supplied.
The bridge 360 extends a length that is 1 to 6 times the thickness of the wall of the air duct section 330. Specifically, as shown in FIGS. 2 and 3, the bridge 360 extends a length that is 3 times the thickness of the wall of the air duct section 330. This secures both the duct section 330 and the strength of the blower volute 300.
In other embodiments, as the rotational speed of crossflow blower 200 is reduced, duct section 330 rotates toward supply air duct 310 to narrow supply air duct 310. When the rotating speed of the cross-flow fan 200 is reduced, a backflow area is easy to appear, and the backflow area can be forcibly deleted due to the narrowed air duct, so that noise is avoided.
The fixing section 340 is fixed at the air supply opening 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 duct 310 is not limited, and the air duct section 330 does not extend out of the air outlet 100 in the rotation process according to the specific machine type limitation, that is, the air duct section 330 is always located in the air outlet 100 in the rotation process. As a specific example, as shown in fig. 2 and 3, the length of the air duct section 330 is 3/4 the sum of the length of the air duct section 330 and the length of the fixed section 340, and the length of the air duct section 330 is 1/3 the sum of the length of the first air duct wall 370.
According to a second aspect of the present invention, the present invention also provides an air conditioner comprising the air conditioner indoor unit 10 as described 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 the details are not repeated herein.
In the description of the present embodiments, it is to 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," and the like are used in an orientation or positional relationship indicated in the drawings for convenience of description and simplicity of description only, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention.
The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature, i.e., one or more such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. When a feature "comprises or comprises" a or some of its intended features, this indicates that other features are not excluded and that other features may be further included, unless expressly stated otherwise.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and "coupled" and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. Those of ordinary skill in the art should understand the specific meaning of the above terms in the present invention according to specific situations.
Further, in the description of the present embodiments, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact via another feature therebetween. That is, in the description of the present embodiment, the first feature being "on", "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is higher in level than the second feature. A first feature "under," "beneath," or "beneath" a second feature may be directly under or obliquely under the second feature or may simply mean that the first feature is at a lesser elevation than the second feature.
Unless otherwise defined, all terms (including technical and scientific terms) used in the description of the present 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 embodiments, reference to the description of "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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An indoor unit for an air conditioner, comprising:
a cross-flow fan;
the air supply spiral case extends the setting to the supply-air outlet of indoor set from the periphery of cross-flow fan to inject the air supply duct, and the air supply spiral case includes:
a fan section extending toward the air supply port along an outer periphery of the cross flow fan;
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 outlet on the second side and is configured to rotate between the direction towards and away from the air supply duct so as to change the width of the air supply duct.
2. The indoor unit of claim 1, wherein the blower volute further comprises:
and the fixed section is arranged at the air supply opening, and the air duct section is connected with the second side of the air duct section when the air duct section back to the air supply duct rotates to a first position enabling the air supply duct to be widest.
3. The indoor unit of an air conditioner according to claim 2,
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.
4. The indoor unit of claim 2, wherein the blower volute further comprises:
the stroke section is arranged on the second side of the air duct section and extends out of the air supply air duct in a back direction;
the lap joint portion is arranged on the stroke portion, and when the air duct section faces the air supply duct and rotates to the second position where the air supply duct is narrowest, the air duct section is lapped on the fixed section to be fixed.
5. The indoor unit of claim 4, further comprising:
and the first swing blade is pivotally arranged at the air supply opening along the length direction of the air supply opening, 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.
6. The indoor unit of an air conditioner according to claim 5,
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.
7. The indoor unit of claim 6, further comprising:
and the second swing blades are respectively arranged at the air supply outlet in a pivoting manner along the length direction of the air supply outlet and are configured to be controlled to independently rotate to a preset position so as to enable the air flow of the air supply air duct to be uniform.
8. The indoor unit of an air conditioner according to claim 2,
the fixed section extends from the air supply opening towards the air duct in an inclined mode gradually.
9. An air conditioner indoor unit according to claim 4, wherein the air duct section rotates through an angle in the range of 18 ° to 25 ° when rotating from the first position to the second position.
10. An air conditioner comprising the air conditioner indoor unit according to any one of claims 1 to 9.
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 true CN114777204A (en) | 2022-07-22 |
| CN114777204B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202028A1 (en) * | 2022-04-19 | 2023-10-26 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
| WO2024060554A1 (en) * | 2022-09-19 | 2024-03-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
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| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202028A1 (en) * | 2022-04-19 | 2023-10-26 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
| WO2024060554A1 (en) * | 2022-09-19 | 2024-03-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023202028A1 (en) | 2023-10-26 |
| CN114777204B (en) | 2023-10-20 |
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