CN111520817B - Cross flow fan air duct, air supply method, readable storage medium and air conditioner indoor unit - Google Patents

Cross flow fan air duct, air supply method, readable storage medium and air conditioner indoor unit Download PDF

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Publication number
CN111520817B
CN111520817B CN202010384281.0A CN202010384281A CN111520817B CN 111520817 B CN111520817 B CN 111520817B CN 202010384281 A CN202010384281 A CN 202010384281A CN 111520817 B CN111520817 B CN 111520817B
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air
supplementing
duct
flow fan
preset
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CN111520817A (en
Inventor
刘玉静
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits

Abstract

A cross flow fan air duct, an air supplement method, a readable storage medium and an air conditioner internal unit are applied to the technical field of air conditioners. The air flow is introduced into the rear side wall surface, so that the introduced air flow and the air flow which is about to stall at the rear side wall surface are mixed, the kinetic energy of the stalled air flow at the side wall surface can be increased, the air flow separation at the position is delayed, the anti-surge effect is achieved, and meanwhile, the air supply device is hidden in the air conditioner inner machine and does not affect the appearance.

Description

Cross flow fan air duct, air supply method, readable storage medium and air conditioner indoor unit
Technical Field
The disclosure relates to the technical field of air conditioners, in particular to a cross flow fan air duct, an air supplementing method, a readable storage medium and an air conditioner indoor unit.
Background
The existing household air conditioner internal unit generally uses a cross-flow fan to supply air. The cross-flow fan has the characteristic of low pressure head, so that the surge phenomenon is easily generated under the condition of low flow. The essential reason for the surge phenomenon is that the air flow is separated in the air duct, causing pressure pulsations.
In the prior art, ribs or convex hulls are added at the position, close to an air outlet, of the side wall surface of an air passage of a cross-flow fan, so that surging of the fan under the condition of low flow is restrained to a certain extent. However, the added ribs or convex hulls directly appear on the appearance, thereby influencing the aesthetic property of the product to a certain extent.
Disclosure of Invention
The main purpose of the disclosure is to provide a cross-flow fan air duct, an air supply method, a readable storage medium and an air conditioner indoor unit, which can effectively prevent surge and improve the aesthetic property of the air conditioner indoor unit.
In order to achieve the above object, a first aspect of the embodiments of the present disclosure provides a cross-flow fan air duct for an air conditioner internal unit, where an air volume detection device 2 is disposed at an air outlet 1 of the cross-flow fan air duct, a rear sidewall 12 of the cross-flow fan air duct is provided with a plurality of air outlet holes 121, and a position, corresponding to the air outlet holes 121, on an inner side of the rear sidewall 12 is provided with an air supplement device 3;
the air quantity detection device 2 is used for monitoring the air output quantity of an air conditioner indoor unit in real time, and sending an air supplementing command to the air supplementing device 3 when the air output quantity is smaller than a preset threshold value, wherein the air supplementing command is used for enabling the air supplementing device 3 to extract air and supplement the air into the cross flow fan air duct;
and the air supplementing device 3 is used for responding to the air supplementing command and extracting air to supplement the air into the cross flow fan air duct.
Optionally, the air supply device 3 includes an air exhaust device 31 and an air outlet device 32;
the gas pumping device 31 is used for pumping gas to the gas outlet device 32;
the air outlet device 32 is at least one air outlet nozzle with an adjustable air outlet angle, and is used for blowing the air extracted by the air extractor 31 out through the air outlet holes 121 at a preset angle and supplementing the air into the cross flow fan air duct.
Optionally, the total area of the plurality of air outlets 121 is smaller than the area of the air outlet 1 of the cross-flow fan duct.
Optionally, the total area of the plurality of air outlet holes 121 is smaller than the total area of the rear sidewall surface 12.
Optionally, the extension direction of the plane where the plurality of air outlets 121 are located toward the air outlet 1 is parallel to the air outlet direction of the air outlet 1 of the cross flow fan duct.
Optionally, the projection of the plane formed by the plurality of air outlets 121 on the horizontal plane is overlapped with the projection of the air outlet 1 of the cross flow fan air duct on the water surface.
The second aspect of the embodiment of the invention provides an air supplementing method, the method is applied to a cross-flow fan, an air quantity detection device is arranged at an air outlet 1 of an air duct of the cross-flow fan, and an air supplementing device is arranged on the inner side of the rear side wall surface of the air duct of the cross-flow fan, and the method comprises the following steps:
monitoring the air output of an air conditioner indoor unit in real time through the air quantity detection device, and sending an air supplementing command to the air supplementing device when the air output is smaller than a preset threshold value, wherein the air supplementing command is used for enabling the air supplementing device to extract air and supplement the air into the cross flow fan air duct;
and the air supplementing device responds to the air supplementing command, and extracts air to be supplemented into the cross flow fan air duct.
Optionally, when the air output is less than the preset threshold, sending an air supplement instruction to the air supplement device includes:
when the air output is within a preset first air output range, sending a first air supplementing instruction to the air supplementing device;
the air supplement device responds to the air supplement instruction, and the steps of extracting air and supplementing the air into the cross flow fan air duct comprise:
the air supplementing device responds to the first air supplementing instruction, adjusts the air outlet angle of the air supplementing device to be within a preset first angle range, and exhausts air according to a preset first air outlet quantity.
Optionally, when the air output is less than the preset threshold, sending an air supplement instruction to the air supplement device includes:
when the air output is within a preset second air output range, sending a second air supply instruction to the air supply device;
the air supplement device responds to the air supplement instruction, and the steps of extracting air and supplementing the air into the cross flow fan air duct comprise:
and the air supplementing device responds to the second air supplementing instruction, adjusts the air outlet angle of the air supplementing device to be within a preset second angle range, and exhausts air at a preset second air outlet quantity.
Optionally, the method further includes:
and obtaining the preset first air output and the preset second air output according to the air output of the air conditioner indoor unit.
A third aspect of the embodiments of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for supplementing air provided in the second aspect of the embodiments of the present disclosure.
The fourth aspect of the embodiment of the invention provides an air conditioner indoor unit which comprises the cross-flow fan provided by the first aspect of the embodiment of the disclosure.
In the embodiment of the disclosure, when the air volume detection device 2 recognizes that the air volume of the air conditioner internal unit is smaller than the preset threshold value, that is, enters a low-flow state, an air supplement command is sent to the air supplement device 3, so that the air supplement device 3 extracts air to supplement the cross-flow fan air duct, that is, air flow is introduced at the rear side wall surface 12 of the cross-flow fan air duct, so that the introduced air flow and the air flow which is about to stall at the rear side wall surface 12 are mixed with each other, the kinetic energy of the air flow which is about to stall at the rear side wall surface 12 can be increased, the air flow separation at the position is delayed, the anti-surge effect is achieved, and meanwhile, the air supplement device 3 is concealed in the air conditioner internal unit without affecting the appearance.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a crossflow blower provided in accordance with an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an air conditioner internal unit according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart illustrating a method for supplying gas according to an embodiment of the present disclosure;
description of the drawings:
1-air outlet, 2-air quantity detection device, 3-air supply device, 12-rear side wall surface, 121-air outlet and 11-front side wall surface.
Detailed Description
In order to make the objects, features and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural view of a cross-flow fan provided in an embodiment of the present disclosure, and fig. 2 is a schematic structural view of an air conditioner internal unit provided in an embodiment of the present disclosure, an air volume detection device 2 is disposed at an air outlet 1 of an air duct of the cross-flow fan, a rear wall surface 12 of the air duct of the cross-flow fan is provided with a plurality of air outlets 121, and an air supplement device 3 is disposed at a position corresponding to the air outlets 121 inside the rear wall surface 12;
the air quantity detection device 2 is used for monitoring the air output quantity of an air conditioner indoor unit in real time, and sending an air supplementing command to the air supplementing device 3 when the air output quantity is smaller than a preset threshold value, wherein the air supplementing command is used for enabling the air supplementing device 3 to extract air and supplement the air into the air duct of the cross flow fan;
and the air supplementing device 3 is used for responding to the air supplementing command, and extracting air to supplement and fill the air duct of the cross flow fan.
Optionally, in an example, the air volume detecting device 2 may be a combination of an air volume sensor and a processor, and in another example, the air volume detecting device 2 may also be physically separated into an independent air volume sensor and an independent processor, and the communication mode between the two may be a wireless connection or a wired connection. The air quantity sensor monitors the air output quantity of the air conditioner indoor unit in real time, the air output quantity is sent to the processor, the processor judges whether the air output quantity is smaller than a preset threshold value or not, and when the air output quantity is smaller than the preset threshold value, an air supplementing instruction is sent to the air supplementing device 3.
Optionally, in an example, the air volume detecting device 2 is located inside the front sidewall 11 of the cross-flow fan air duct, so that the air volume monitoring result is more accurate. In another example, the air volume detecting device 2 is located inside the rear side wall surface 12 of the cross-flow fan air duct, which can facilitate information interaction between the air volume detecting device 2 and the air supplement device 3.
Wherein, the diameter of the air outlet 121 is in micron order. E.g., 3 microns, 5 microns, etc. The air supply holes with the micron-sized sizes can ensure even air supply and improve the air supply effect.
Preferably, the rear wall surface 12 of the cross-flow fan duct is a side wall surface that is more likely to surging at a low flow rate than the front wall surface 11 of the cross-flow fan duct.
It can be understood that the inner side of the rear sidewall 12 refers to a side of the air conditioner that is not exposed to the air duct of the cross flow fan.
In this embodiment, when the air volume detection device 2 recognizes that the air volume of the indoor unit of the air conditioner is smaller than the preset threshold value, that is, enters a low-flow state, an air supplement command is sent to the air supplement device 3, so that the air supplement device 3 extracts air to supplement the cross-flow fan air duct, that is, air flow is introduced at the rear side wall surface 12 of the cross-flow fan air duct, so that the introduced air flow and the air flow which is about to stall at the rear side wall surface 12 are mixed with each other, the kinetic energy of the air flow which is about to stall at the rear side wall surface 12 can be increased, the air flow separation at the position can be delayed, the anti-surge effect can be achieved, and meanwhile, the air supplement device 3 is concealed in the indoor unit of the air conditioner, and the appearance is not affected.
In one embodiment of the present application, the air supply device 3 includes an air exhaust device 31 and an air outlet device 32; the gas pumping device 31 is used for pumping gas to the gas outlet device 32; the air outlet device 32 is at least one air outlet nozzle with an adjustable air outlet angle, and is used for blowing out the air extracted by the air extractor 31 through the air outlet hole 121 at a preset angle and supplementing the air into the cross flow fan air duct.
Understandably, the air outlet nozzle with the adjustable air outlet angle is used for guiding the trend of the blown air flow. The air outlet angle indicates the angle between the air outlet direction of the air nozzle and the surface of the rear sidewall 12 (i.e., the air outlet holes 121).
Optionally, the preset angle of the air outlet nozzle may be adjusted according to the air output at the air outlet 1 monitored by the air volume detecting device 2, so that the air output at the air outlet 1 is Q, the preset threshold is Q0, and in one example, when the preset threshold is 0.5Q0≤Q＜Q0 When the angle is 75-85 DEG, Q is more than or equal to 0 and less than 0.5Q0The preset angle range is 70 ° to 85 °.
In one embodiment of the present application, the total area of the plurality of air outlet holes 121 is smaller than the area of the air outlet 1 of the cross-flow fan duct. The air leakage of the air duct of the cross flow fan caused by the overlarge air supplement area can be prevented, and the influence on the heat exchange efficiency of the air conditioner can be avoided.
Preferably, the total area of the plurality of air outlet holes 121 is about 0.4 to 0.5 times the area of the air outlet 1 of the cross-flow fan duct.
In one embodiment of the present application, the total area of the plurality of air outlet holes 121 is smaller than the total area of the rear sidewall surface 12. The air leakage of the air duct of the cross flow fan caused by the overlarge air supplement area can be prevented, and the influence on the heat exchange efficiency of the air conditioner can be avoided.
Preferably, the total area of the plurality of outlet holes 121 is about 1/12 to 1/18 of the total area of the rear sidewall face 12.
In one embodiment of the present application, the extension direction of the plane where the plurality of air outlets 121 are located toward the air outlet 1 is parallel to the air outlet direction of the air outlet 1 of the cross flow fan duct. That is, when the air flow passes through the cross flow fan air duct, the air flow in the cross flow fan air duct is uniformly supplemented through the plurality of air outlet holes 121 on the rear side wall surface 12 of the cross flow fan air duct parallel to the blowing direction of the air flow, so that the uniform supplement is ensured.
In one embodiment of the present application, a projection of a plane formed by the plurality of air outlet holes 121 on a horizontal plane is overlapped with a projection of the air outlet 1 of the cross-flow fan duct on a water surface. Can improve the air supply efficiency. The air flow supplied and blown out by the air outlet holes 121 can be effectively combined with the air flow in the air duct of the cross flow fan, and the anti-surging effect is enhanced.
Referring to fig. 3, fig. 3 is a schematic flow chart of an air supplement method according to an embodiment of the present disclosure, the method is applied to a cross flow fan, the cross flow fan is structurally as shown in fig. 1, an air volume detection device is disposed at an air outlet 1 of an air duct of the cross flow fan, and an air supplement device is disposed on an inner side of a rear sidewall of the air duct of the cross flow fan, and the air supplement method includes:
s101, monitoring the air output of an air conditioner indoor unit in real time through the air output detection device, and sending an air supplementing command to the air supplementing device when the air output is smaller than a preset threshold value, wherein the air supplementing command is used for enabling the air supplementing device to extract air and supplement the air into the air duct of the cross flow fan;
and S102, the air supplementing device responds to the air supplementing command, and extracts air to supplement the air channel of the cross flow fan.
The air supply method provided by the embodiment of the disclosure is an implementation method of air supply of the crossflow blower provided by the embodiment shown in fig. 1 of the disclosure, and has corresponding method steps, and the implementation principle is similar, and is not described herein again.
In this embodiment, when the air volume detection device recognizes that the air volume of the indoor unit of the air conditioner is smaller than the preset threshold value, that is, the indoor unit of the air conditioner enters a low-flow state, an air supplement command is sent to the air supplement device, so that the air supplement device extracts air to supplement the air into the cross-flow fan air duct, that is, air flow is introduced at the rear side wall surface of the cross-flow fan air duct, so that the introduced air flow is mixed with the airflow to be stalled at the rear side wall surface, the kinetic energy of the airflow to be stalled at the side wall surface can be increased, the airflow separation at the position can be delayed, the anti-surge effect can be achieved, and meanwhile, the air supplement device is concealed in the indoor unit of the air conditioner and does not affect the appearance.
In one embodiment of the present disclosure, in step S101, when the air output is smaller than a preset threshold, the sending a air replenishing command to the air replenishing device includes: when the air output is within a preset first air output range, sending a first air supply instruction to the air supply device; in step S102, the air supplement device responds to the air supplement command, and the extracting and filling the air into the cross-flow fan duct includes: the air supply device responds to the first air supply instruction, adjusts the air outlet angle of the air supply device to be within a preset first angle range, and exhausts air according to a preset first air outlet quantity.
Wherein, in advanceAnd setting the maximum value of the first air volume range not to be larger than a preset threshold value. Let the air output be Q and the preset threshold be Q0In one example, the preset first air volume range may be 0.5Q0≤Q＜Q0In another example, the preset first air volume range may be 0.6Q0≤Q＜Q0。
Understandably, the first air supplement instruction comprises the steps of adjusting the air outlet angle of the air outlet device to be within a preset first angle range, and supplementing air to the cross flow fan air duct according to a preset first air outlet quantity.
Wherein in one example, the first angle range is preset to 75 ° to 85 °, and in another example, the first angle range is preset to 70 ° to 85 °.
In one embodiment of the present disclosure, in step S101, when the air output is smaller than a preset threshold, the sending a air replenishing command to the air replenishing device includes: when the air output is within the preset second air output range, a second air supply instruction is sent to the air supply device; in step S102, the air supplement device responds to the air supplement command, and the extracting and filling the air into the cross-flow fan duct includes: the air supplementing device responds to the second air supplementing instruction, adjusts the air outlet angle of the air supplementing device to be within the preset second angle range, and exhausts air at the preset second air outlet quantity.
Understandably, the maximum value of the preset second air volume range is not larger than the preset threshold value and is not overlapped with the preset first air volume range. Let the air output be Q and the preset threshold be Q0In one example, the preset first air volume range is 0.5Q0≤Q＜Q0Then the second preset air volume range can be more than or equal to 0 and less than 0.5Q0In another example, the preset first air volume range is 0.6Q0≤Q＜Q0Then the second preset air volume range can be more than or equal to 0 and less than 0.6Q0。
Understandably, the second air supplement instruction comprises adjusting the air outlet angle of the air outlet device to a preset second angle range, and supplementing air to the cross flow fan air duct according to a preset second air outlet quantity.
Wherein the preset second angle range does not overlap with the preset first angle range, in one example, the preset first angle range is 75 ° to 85 °, the preset second angle range is 60 ° to 75 °, in another example, the preset first angle range is 70 ° to 85 °, the preset second angle range is 60 ° to 70 °.
In one embodiment of the present disclosure, the method further comprises: and obtaining the preset first air output and the preset second air output according to the air output of the air conditioner indoor unit.
Namely, the preset first air output and the preset second air output are determined according to the air output of the air conditioner internal unit monitored by the air output detection device. In one example, the preset air output of the air supply device corresponding to each air output of the air conditioner indoor unit can be obtained by performing multiple surge experiments, and then the mapping relation is stored. When the air output of the air conditioner indoor unit is monitored to be smaller than a preset threshold value, the preset air output of the cross flow fan air duct, which needs to be supplied with air by the air supply device corresponding to the air output of the air conditioner indoor unit, is inquired, namely the first air output is preset or the second air output is preset.
An embodiment of the present disclosure further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method for supplementing air described in the foregoing embodiment shown in fig. 3 is implemented.
It should be noted that each functional module in each embodiment of the present disclosure may be integrated into one processing module, or each module may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be substantially or partially embodied in the form of a software product, or all or part of the technical solution that contributes to the prior art.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no acts or modules are necessarily required of the invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the above description, for the cross-flow fan duct, the air supply method, the readable storage medium and the air conditioner indoor unit provided by the present invention, for those skilled in the art, according to the idea of the embodiment of the present invention, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims (11)

1. A cross-flow fan air duct is used for an air conditioner indoor unit and is characterized in that an air quantity detection device (2) is arranged at an air outlet (1) of the cross-flow fan air duct, a plurality of air outlet holes (121) are formed in a rear side wall surface (12) of the cross-flow fan air duct, and an air supplement device (3) is arranged at a position, corresponding to the air outlet holes (121), on the inner side of the rear side wall surface (12);
the air quantity detection device (2) is used for monitoring the air quantity of an air conditioner indoor unit in real time, and sending an air supplementing command to the air supplementing device (3) when the air quantity is smaller than a preset threshold value, wherein the air supplementing command is used for enabling the air supplementing device (3) to extract air and supplement the air into the cross flow fan air duct;
and the air supplementing device (3) is used for responding to the air supplementing command and extracting air to supplement the air into the cross flow fan air duct.
2. The crossflow blower duct according to claim 1, characterized in that the air supply means (3) comprise air extraction means (31) and air outlet means (32);
the gas extraction device (31) is used for extracting gas to the gas outlet device (32);
the air outlet device (32) is at least one air outlet nozzle with an adjustable air outlet angle and is used for blowing out the air extracted by the air extraction device (31) through the air outlet holes (121) at a preset angle and supplementing the air into the cross flow fan air duct.
3. The crossflow blower duct according to claim 1 or 2, characterized in that the total area of the outlet apertures (121) is smaller than the area of the outlet opening (1) of the crossflow blower duct.
4. The crossflow blower duct according to claim 1 or 2, characterized in that the total area of the plurality of outlet apertures (121) is smaller than the total area of the rear side wall face (12).
5. The crossflow blower duct according to claim 1 or 2, characterized in that the extension direction of the plane of the plurality of air outlet holes (121) facing the air outlet (1) is parallel to the air outlet direction of the air outlet (1) of the crossflow blower duct.
6. The crossflow blower duct according to claim 1 or 2, characterized in that the projection of the plane formed by the plurality of air outlet holes (121) on a horizontal plane coincides with the projection of the air outlet (1) of the crossflow blower duct on a horizontal plane.
7. The air supplementing method is applied to a cross-flow fan air duct, an air quantity detection device is arranged at an air outlet of the cross-flow fan air duct, and an air supplementing device is arranged on the inner side of the rear side wall surface of the cross-flow fan air duct, and comprises the following steps:
monitoring the air output of an air conditioner indoor unit in real time through the air quantity detection device, and sending an air supplementing command to the air supplementing device when the air output is smaller than a preset threshold value, wherein the air supplementing command is used for enabling the air supplementing device to extract air and supplement the air into the cross flow fan air duct;
the air supplementing device responds to the air supplementing command and extracts air to be supplemented into the cross flow fan air duct;
and obtaining a preset first air output and a preset second air output according to the air output of the air conditioner indoor unit.
8. The air supplementing method according to claim 7, wherein when the air output is smaller than a preset threshold, sending an air supplementing command to the air supplementing device comprises:
when the air output is within a preset first air output range, sending a first air supplementing instruction to the air supplementing device;
the air supplement device responds to the air supplement instruction, and the steps of extracting air and supplementing the air into the cross flow fan air duct comprise:
the air supplementing device responds to the first air supplementing instruction, adjusts the air outlet angle of the air supplementing device to be within a preset first angle range, and exhausts air according to a preset first air outlet quantity.
9. The air supplementing method according to claim 7, wherein when the air output is smaller than a preset threshold, sending an air supplementing command to the air supplementing device comprises:
when the air output is within a preset second air output range, sending a second air supply instruction to the air supply device;
the air supplement device responds to the air supplement instruction, and the steps of extracting air and supplementing the air into the cross flow fan air duct comprise:
and the air supplementing device responds to the second air supplementing instruction, adjusts the air outlet angle of the air supplementing device to be within a preset second angle range, and exhausts air at a preset second air outlet quantity.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method for supplementing gas according to any one of claims 7 to 9.
11. An air conditioner indoor unit, characterized by comprising the crossflow blower duct as recited in any one of claims 1 to 6.
CN202010384281.0A 2020-05-08 2020-05-08 Cross flow fan air duct, air supply method, readable storage medium and air conditioner indoor unit Active CN111520817B (en)

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JPH09203552A (en) * 1996-01-29 1997-08-05 Kubota Toreen Kk Air conditioning system
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CN108286777A (en) * 2017-12-21 2018-07-17 珠海格力电器股份有限公司 Regulate and control the method and apparatus of air quantity
CN108679713A (en) * 2018-05-21 2018-10-19 青岛海尔空调器有限总公司 Air conditioner indoor unit and its control method
CN108489055A (en) * 2018-05-21 2018-09-04 青岛海尔空调器有限总公司 Air compensation device and air conditioner indoor unit for air conditioner indoor unit
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