CN113864866A - Air inlet amount control method and device for indoor unit of air conditioner, medium and equipment - Google Patents

Air inlet amount control method and device for indoor unit of air conditioner, medium and equipment Download PDF

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Publication number
CN113864866A
CN113864866A CN202111235797.XA CN202111235797A CN113864866A CN 113864866 A CN113864866 A CN 113864866A CN 202111235797 A CN202111235797 A CN 202111235797A CN 113864866 A CN113864866 A CN 113864866A
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China
Prior art keywords
baffle
filter screen
air
indoor unit
target
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Granted
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CN202111235797.XA
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Chinese (zh)
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CN113864866B (en
Inventor
李玉泽
王启龙
陈启荣
刘珊珊
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202111235797.XA priority Critical patent/CN113864866B/en
Publication of CN113864866A publication Critical patent/CN113864866A/en
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Publication of CN113864866B publication Critical patent/CN113864866B/en
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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
    • F24F1/0043—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
    • 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
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • 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
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air-Flow Control Members (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides an air intake control method and a control device, a medium and equipment of an air-conditioning indoor unit, wherein an air inlet is formed on the air-conditioning indoor unit; the outer side and the inner side of the air inlet are respectively provided with a baffle plate and a filter screen; the air intake control method comprises the following steps: determining the target unit air intake of the indoor unit; calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake; controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position; under the condition of guaranteeing that the air intake is not attenuated, the control baffle rotates to reasonable inclination and controls the filter screen to slide to the corresponding position, has solved big aviation baffle return air problem, has optimized the control scheme of air intake, makes the air inlet smooth and easy, has reduced the air intake loss, has reduced the attenuation of filter screen to the air intake, has avoided dropping of dust on the baffle, compromises filter capacity and windage, guarantees air intake flow and air inlet quality simultaneously, has improved the air conditioner efficiency.

Description

Air inlet amount control method and device for indoor unit of air conditioner, medium and equipment
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air inlet quantity control method and device of an air conditioner indoor unit, a medium and equipment.
Background
With the increasing requirements of users on the performance of air conditioners, how to improve the comfort of the air conditioners and the experience of the users becomes a main research and development direction; in the existing air-conditioning indoor unit, an air inlet baffle is arranged on the outer side of an air inlet, a filter screen is arranged on the inner side of the air inlet, indoor air is guided to the air inlet through the air inlet baffle, and the air entering the indoor unit is filtered through the filter screen; however, when air flows through the air inlet baffle, return air can be formed, and air is not smoothly fed, so that the loss of air inlet amount and convolution noise are caused; dust is easily accumulated on the air inlet baffle plate, the opening angle is too large, and the dust on the air inlet baffle plate easily falls into an indoor unit, so that the air purification effect is weakened; the filter screen has certain attenuation effect on the intake while filtering air, further influences the intake of the air conditioner.
Disclosure of Invention
In view of the above, the present invention provides a method, a device, a medium, and an apparatus for controlling an air intake rate of an indoor unit of an air conditioner, so as to solve the problems in the prior art, such as air return and air intake of a large air deflector is not smooth, loss of the air intake rate is large, and dust on an air intake baffle easily falls into the indoor unit to affect the air purification effect.
The invention provides an air inlet quantity control method of an air conditioner indoor unit, wherein an air inlet is formed in the air conditioner indoor unit; the outer side of the air inlet is provided with a baffle which can be controlled to rotate; a filter screen which can be controlled to slide is arranged on the inner side of the air inlet; the air intake control method comprises the following steps:
determining the target unit air intake of the indoor unit;
calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake;
and controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position.
Further optionally, the controlling the baffle to rotate to the target inclination angle and the controlling the filter screen to slide to the target position includes:
and when the target unit air intake is judged to be less than or equal to the preset air intake, controlling the baffle to rotate to a target inclination angle corresponding to the target unit air intake, and controlling the filter screen to be kept right below the air inlet.
Further optionally, the controlling the baffle to rotate to the target inclination angle and the controlling the filter screen to slide to the target position further comprises:
when the target unit air intake is judged to be larger than the preset air intake, continuously judging whether the air quality in the environment where the indoor unit is located is larger than the preset quality;
and when the air quality in the environment where the indoor unit is located is larger than the preset quality, controlling the baffle to rotate to a target inclination angle corresponding to the target unit air intake and controlling the filter screen to slide to a target position corresponding to the target unit air intake.
Further optionally, the target unit intake Q of the indoor unit is k × S, where k is a wind resistance coefficient of the filter screen, and S is an effective intake airflow area;
k is related to the position of the filter screen, and the larger the superposed area of the projection of the filter screen and the projection of the air inlet on the same horizontal plane is, the smaller k is; s is related to the inclination angle of the baffle, and the larger the inclination angle of the baffle is, the larger S is.
Further optionally, the baffle comprises a first baffle and a second baffle which are oppositely arranged at the air inlet; the first baffle and the second baffle can be independently controlled to rotate;
control the baffle rotates to target inclination and control the filter screen slides to the target location includes:
and when the air quality in the environment where the indoor unit is located is less than or equal to the preset quality, controlling the first baffle and the second baffle to rotate to the same or different inclination angles respectively, so that the S is matched with the Q, and controlling the filter screen to slide to be right below the air inlet.
Further optionally, the controlling the baffle to rotate to the target inclination angle and the controlling the filter screen to slide to the target position further comprises:
when the air quality in the environment where the indoor unit is located is larger than the preset quality, the first baffle and the second baffle are controlled to rotate to the same or different inclination angles respectively to enable S to be matched with Q, and the filter screen is controlled to slide to a preset position to enable k to be matched with Q.
Further optionally, when the air quality in the environment where the indoor unit is located is less than or equal to a preset quality, controlling the first baffle and the second baffle to rotate to a first preset inclination angle alpha, and controlling the filter screen to slide to a position right below the air inlet;
when the air quality in the environment where the indoor unit is located is larger than the preset quality, controlling the first baffle and the second baffle to rotate to a second preset inclination angle beta, and controlling the filter screen to slide to a first preset position; or
Controlling the first baffle and the second baffle to rotate to a third preset inclination angle gamma, and controlling the filter screen to slide to a second preset position;
alpha > beta > gamma; on the same horizontal plane the projection of the filter screen and the projection coincidence area of the air inlet: the first preset position is smaller than the second preset position.
Further optionally, the controlling the first baffle and the second baffle to rotate to the same or different inclination angles respectively includes controlling the first baffle and the second baffle to rotate at the same or different linear speeds respectively.
The invention also provides a control device for the air inlet volume control method of the indoor unit of the air conditioner, which comprises the following steps:
the monitoring module is used for detecting the air quality in the environment where the indoor unit is located;
the calculation module is used for determining the target unit air intake of the indoor unit, calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake;
the judging module is used for judging whether the target unit air inlet quantity is larger than a preset air inlet quantity or not and whether the air quality in the environment where the indoor unit is located is larger than a preset quality or not;
and the control module is used for controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position.
The invention also provides a non-transitory computer readable storage medium, wherein program instructions are stored on the storage medium, and when the program instructions are executed by one or more processors, the one or more processors are used for realizing the air intake control method of the air conditioner indoor unit.
The invention also provides an air conditioner, which comprises the control device of the air inlet quantity control method of the indoor unit of the air conditioner or the non-transitory computer readable storage medium;
the air conditioner also comprises an indoor unit, wherein the indoor unit comprises a shell and a driving mechanism; an air inlet is formed at the top of the shell; a first baffle and a second baffle which are oppositely arranged are arranged on the outer side of the air inlet;
the driving mechanism comprises a baffle driving mechanism, and the first baffle and the second baffle can rotate simultaneously or independently under the action of the baffle driving mechanism.
Further optionally, the baffle drive mechanism comprises a spur rack, a first gear, a second gear, and a baffle drive gear; the first baffle is in driving connection with the first gear, and the second baffle is in driving connection with the second gear; the baffle driving gear is in driving connection with the baffle driving motor, and one end of the baffle driving gear is meshed with the second gear; one end of the straight rack is meshed with the first gear, and the other end of the straight rack is meshed with the other end of the driving gear;
when the baffle driving motor rotates, the baffle driving gear drives the second baffle to rotate through the second gear, and the spur rack slides and drives the first baffle to rotate through the first gear.
Further optionally, a filter screen is arranged on the inner side of the air inlet, and the driving mechanism is also provided with a filter screen driving mechanism; under the action of the filter screen driving mechanism, the filter screen can slide along the direction close to or far away from the air inlet.
Further optionally, the filter screen driving mechanism comprises an arc-shaped rack, a filter screen driving gear, a filter screen driven gear and a filter screen driving motor; the filter screen driving gear is in driving connection with the filter screen driving motor, one end of the filter screen driven gear is meshed with the filter screen driving gear, the other end of the filter screen driven gear is meshed with the arc-shaped rack, and the arc-shaped rack is connected with the filter screen;
when the filter screen driving motor rotates, the filter screen driving gear drives the filter screen driven gear to rotate, and then the arc-shaped rack drives the filter screen to slide.
The invention provides an air intake control method of an air-conditioning indoor unit, wherein an air inlet is formed on the air-conditioning indoor unit; the outer side and the inner side of the air inlet are respectively provided with a baffle plate and a filter screen; the air intake control method comprises the following steps: determining the target unit air intake of the indoor unit; calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake; controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position; under the condition of ensuring that the air inlet quantity is not attenuated, the baffle is controlled to rotate to a reasonable inclination angle and the filter screen is controlled to slide to a corresponding position, so that the air return problem of the large air deflector is solved, and the problem of air inlet quantity loss caused by air return of the large air deflector is avoided; the control scheme of the air inlet volume is optimized, air inlet is smooth, air inlet volume loss is reduced, convolution noise is avoided, the attenuation effect of the filter screen on the air inlet volume is reduced, dust falling on the baffle is avoided, filtering capacity and wind resistance are considered, the air inlet volume and the air inlet quality are guaranteed simultaneously, and the air conditioner energy efficiency and user experience are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a flow chart of an air intake control method for an indoor unit of an air conditioner according to the present invention;
fig. 2 is a schematic structural view of an air conditioning indoor unit provided by the invention when a baffle is opened;
fig. 3 is a schematic structural view of an air conditioning indoor unit provided by the present invention when a baffle is closed;
FIG. 4a is a schematic structural view of an indoor unit of an air conditioner (including a driving mechanism for a baffle) according to an embodiment of the present invention;
fig. 4b and 4c are schematic structural diagrams of an air-conditioning indoor unit (including a filter screen driving mechanism) according to an embodiment of the present invention;
fig. 5a, 5b and 5c are schematic structural views of embodiments of a first baffle plate and a second baffle plate provided by the invention;
fig. 6 is a flowchart illustrating an air intake rate control method for an indoor unit of an air conditioner according to another embodiment of the present invention;
in the figure:
1-an indoor unit; 11-a housing; 111-air inlet; 112-a chute; 121-a first baffle; 122-a second baffle; 123-a stopper; 124-a filter screen; 131-an evaporator; 132-cross-flow fan blades;
2-a baffle driving mechanism; 21-a first gear; 22-a second gear; 23-baffle drive gear 24-spur rack;
3-a filter screen driving mechanism; 31-arc rack; 32-a filter screen driving gear; 33-a filter screen driven gear; 34-a filter screen driving motor.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
In the existing air-conditioning indoor unit, indoor air is guided to an air inlet through an air inlet baffle plate, and the air entering the indoor unit is filtered through a filter screen; however, air can form return air when flowing through the air inlet baffle plate, so that the air inlet is not smooth, the convolution noise is generated, and the air inlet loss is large; when the opening angle of the air inlet baffle is too large, dust on the air inlet baffle easily falls into the indoor unit, and the air purification effect is influenced; the filter screen has the attenuation effect on the air intake, influences the air intake of air conditioner. The invention creatively provides an air inlet quantity control method of an air-conditioning indoor unit, wherein an air inlet is formed on the air-conditioning indoor unit; the outer side and the inner side of the air inlet are respectively provided with a baffle plate and a filter screen; the air intake control method comprises the following steps: determining the target unit air intake of the indoor unit; calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake; controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position; the target unit air intake can be set according to actual needs, each target unit air intake corresponds to a certain target inclination angle and a target position, under the condition that the air intake is not attenuated, the baffle is controlled to rotate to a reasonable inclination angle and the filter screen is controlled to slide to the corresponding position, the air return problem of the large air deflector is solved, and the problem of air intake loss caused by air return of the large air deflector is avoided; the control scheme of the air inlet volume is optimized, air inlet is smooth, air inlet volume loss is reduced, rotary noise generated at the position of the baffle is avoided, the attenuation effect of the filter screen on the air inlet volume is reduced, dust falling on the baffle is avoided, the air inlet volume and the air filtering effect are considered, the air inlet volume and the air inlet quality are guaranteed simultaneously, and the air conditioner energy efficiency and the user experience are improved.
Example 1
< control method >
As shown in fig. 1, 2 and 3, the present embodiment provides a method for controlling an intake air volume of an indoor unit of an air conditioner, where an air inlet 111 is formed in the indoor unit of the air conditioner; the outer side of the air inlet 111 is provided with a baffle which can be controlled to rotate; a filter screen 124 which can be controlled to slide is arranged on the inner side of the air inlet 111; the air intake control method comprises the following steps:
s1, determining the target unit air intake of the indoor unit;
s2, calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake;
s3, controlling the baffle to rotate to a target inclination angle and controlling the filter screen 124 to slide to a target position;
wherein S3 includes:
s31, when the target unit air intake is judged to be less than or equal to the preset air intake, controlling the baffle to rotate to a target inclination angle corresponding to the target unit air intake, and controlling the filter screen 124 to be kept right below the air inlet 111;
s32, when the target unit air intake is judged to be larger than the preset air intake, continuously judging whether the air quality in the environment where the indoor unit 1 is located is larger than the preset quality;
s33, when the air quality in the environment where the indoor unit 1 is located is larger than the preset quality, controlling the baffle to rotate to a target inclination angle corresponding to the target unit air intake and controlling the filter screen 123 to slide to a target position corresponding to the target unit air intake;
further, the target unit intake Q of the indoor unit 1 is k × S, where k is a wind resistance coefficient of the filter screen 124, and S is an effective intake airflow area;
k is related to the position of the filter screen 124, and the larger the superposed area of the projection of the filter screen 124 and the projection of the air inlet 111 on the same horizontal plane is, the smaller k is; s is related to the inclination angle of the baffle, and the larger the inclination angle of the baffle is, the larger S is;
the larger k is, the better the filtering effect of the filter screen 124 on the air entering the indoor unit 1 is, the larger the attenuation effect on the intake air is, and the larger the intake air loss is; the smaller k is, the poorer the filtering effect of the filter screen 124 on the air entering the indoor unit 1 is, the smaller the attenuation effect on the intake air is, and the smaller the intake air loss is; the larger the S is, the larger the effective flow area at the air inlet is, which is beneficial to improving the air inlet amount; k and S are in an inverse proportional relation, the target unit air intake is unchanged, and the larger k is, the smaller S is; when the target unit air intake is increased, k and S can be increased simultaneously, or one of k and S is increased, and the other of k and S is reduced;
by adjusting the position of the filter screen 124 and matching with the inclination angle of the baffle, smooth air intake is ensured under the condition of no attenuation of the air intake, the air intake loss is reduced, and the filtering effect is maintained; the convolution noise generated at the baffle is avoided, and the attenuation of the filter screen 124 to the intake air is reduced; the inclination angle of the baffle is reduced, the appearance of the indoor unit is not affected, dust on the baffle is prevented from falling off, and the installation requirement is reduced; the air conditioner has the advantages that the air inlet amount and the air filtering effect are considered, and the air conditioner energy efficiency is improved.
Under the condition of ensuring that the air intake is not attenuated, when k is smaller, the filter screen 124 is far away from the air inlet 111, and the air intake resistance is small, the inclination angle of the required baffle is smaller; when k is larger, the filter screen 124 is close to the air inlet 111, and the air inlet wind resistance is large, the inclination angle of the required baffle is larger; under the condition of ensuring that the appearance of the indoor unit 1 is not affected, the baffle and the filter screen 124 are used for achieving a better filtering and dustproof effect; through control intake and then control indoor temperature and supply-air volume, provide better use experience for the user.
As shown in fig. 5a, 5b and 5c, in order to avoid the convolution noise and the loss of the intake air caused by the return air at the air inlet when the indoor unit adopts the large air deflector, the baffle plate comprises a first baffle plate 121 and a second baffle plate 122 which are oppositely arranged at the air inlet; the first baffle 121 and the second baffle 122 can be controlled to rotate independently; specifically, the first baffle 121 and the second baffle 122 are respectively disposed at the rear edge and the front edge of the air inlet;
wherein S3 further includes:
and S34, when the air quality in the environment where the indoor unit 1 is located is less than or equal to the preset quality, controlling the first baffle 121 and the second baffle 122 to rotate to the same or different inclination angles respectively, so that the S is matched with the Q, and controlling the filter screen 124 to slide to the position right below the air inlet 111.
And S35, when the air quality in the environment where the indoor unit 1 is located is higher than the preset quality, controlling the first baffle 121 and the second baffle 122 to rotate to the same or different inclination angles respectively to match S with Q, and controlling the filter screen 124 to slide to a preset position to match k with Q.
Preferably, when the air quality in the environment where the indoor unit 1 is located is less than or equal to the preset quality, the first baffle 121 and the second baffle 122 are both controlled to rotate to the first preset inclination angle α, and the filter screen 124 is controlled to slide to a position right below the air inlet 111; specifically, when the air quality in the environment where the indoor unit 1 is located is less than or equal to the preset quality, it indicates that the air needs to be filtered, the filter screen 124 is controlled to slide to the position below the air inlet 111, the overlapping area between the projection of the filter screen 124 and the projection of the air inlet 111 on the same horizontal plane is the largest, the filter screen 124 can filter the air entering the indoor unit 1, and the air purification effect is ensured; in order to ensure that the intake air volume is not attenuated, the effective intake air flow area S needs to be increased, at this time, the inclination angles of the first baffle 121 and the second baffle 122 are increased, that is, the first baffle 121 and the second baffle 122 are controlled to rotate to the first preset inclination angle α, and the first preset inclination angle α can be increased along with the increase of the required intake air volume;
when the air quality in the environment where the indoor unit 1 is located is greater than the preset quality, the first baffle 121 and the second baffle 122 can be controlled to rotate to a second preset inclination angle β, and the filter screen 124 is controlled to slide to a first preset position; specifically, when the air quality in the environment where the indoor unit 1 is located is greater than the preset quality, it is indicated that the air does not need to be filtered, the first baffle 121 and the second baffle 122 are both controlled to rotate to the second preset inclination angle β, and the filter screen 124 is controlled to slide to the first preset position, so as to ensure that the intake air volume is not attenuated, the second preset inclination angle β may be increased, and meanwhile, the overlapping area between the projection of the filter screen 124 and the projection of the air inlet 111 on the same horizontal plane is increased; or reducing the second preset inclination angle β, and simultaneously reducing the overlapping area of the projection of the filter screen 124 and the projection of the air inlet 111 on the same horizontal plane;
when the air quality in the environment where the indoor unit 1 is located is greater than the preset quality, the first baffle 121 and the second baffle 122 can be controlled to rotate to a third preset inclination angle γ, and the filter screen 124 is controlled to slide to a second preset position;
alpha > beta > gamma; the projection of the filter screen 124 and the projection of the air inlet 111 on the same horizontal plane overlap area: the first preset position is smaller than the second preset position.
When the second baffle 122 is opened at a certain angle, the problem of air return of the large air deflector can be solved, and air guided out by the large air deflector is prevented from entering the indoor unit from the air inlet along a short path.
In some embodiments, in order to prevent the dust on the baffles from falling to the indoor unit 1 due to an excessive linear velocity during the rotation of the baffles, controlling the first baffle 121 and the second baffle 122 to rotate to the same or different inclination angles, respectively, includes controlling the first baffle 121 and the second baffle 122 to rotate at the same or different linear velocities, respectively.
< control device >
The present embodiment further provides a control device for the method for controlling an air intake rate of an indoor unit of an air conditioner, including:
the monitoring module is used for detecting the air quality in the environment where the indoor unit is located;
the calculation module is used for determining the target unit air intake of the indoor unit, calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake;
the judging module is used for judging whether the target unit air inlet quantity is larger than the preset air inlet quantity or not and whether the air quality in the environment where the indoor unit is located is larger than the preset quality or not;
and the control module is used for controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position.
< air Conditioning >
The embodiment also provides an air conditioner, which comprises an indoor unit 1, wherein the indoor unit 1 comprises a shell 11, an evaporator 131 and a cross-flow fan blade 132, an air inlet 111 is formed at the top of the shell 11, and a filter screen 124 which can be controlled to slide is arranged on the inner side of the air inlet 111; a first baffle 121 and a second baffle 122 which are oppositely arranged and can be controlled to rotate are arranged on the outer side of the air inlet 111;
as shown in fig. 4a, the indoor unit 1 further includes a driving mechanism including a shutter driving mechanism 2; the baffle driving mechanism 2 is a gear-rack mechanism and comprises a spur rack 24, a first gear 21, a second gear 22 and a baffle driving gear 23; the first baffle 121 is formed with a first rotating shaft and a first connecting shaft which are oppositely arranged at one side close to the air inlet 111; first shaft holes are formed in the left side edge and the right side edge of the air inlet 111, a first rotating shaft penetrates through the first shaft holes in the left side edge of the air inlet 111 to be in driving connection with a first gear 21, the first gear 21 can drive the first rotating shaft to rotate so as to drive a first baffle plate 121 to rotate, and the first gear 21 is meshed with one end of a spur rack 24; the first connecting shaft passes through a first shaft hole at the left edge of the air inlet 111 and is rotatably connected with the left edge of the air inlet 111;
a second rotating shaft and a second connecting shaft which are oppositely arranged are formed on one side of the second baffle 122 close to the air inlet 111; second shaft holes are formed in the left side edge and the right side edge of the air inlet 111, a second rotating shaft penetrates through the second shaft hole in the left side edge of the air inlet 111 to be in driving connection with a second gear 22, the second gear 22 can drive the second rotating shaft to rotate so as to drive a second baffle 122 to rotate, and the second gear 22 is meshed with the spur rack 24 through the second baffle 122; the second connecting shaft penetrates through a second shaft hole in the left side edge of the air inlet 111 to be rotatably connected with the left side edge of the air inlet 111; the baffle driving gear 23 is in driving connection with a baffle driving motor;
when the baffle driving motor rotates, the baffle driving gear 23 is meshed with the second gear 22, the second gear 22 drives the second baffle 122 to rotate, the baffle driving gear 23 drives the spur rack 24 to slide, and the first gear 21 drives the first baffle 121 to rotate;
specifically, when the baffle driving motor rotates clockwise, the baffle driving gear 23 is engaged with the second gear 22, the second gear 22 drives the second baffle 122 to rotate counterclockwise, and the inclination angle of the second baffle 122 gradually decreases; the baffle driving gear 23 drives the spur rack 24 to slide leftwards and upwards, so that the first gear 21 drives the first baffle 121 to rotate clockwise, and the inclination angle of the first baffle 121 is gradually reduced;
when the baffle driving motor rotates anticlockwise, the baffle driving gear 23 is meshed with the second gear 22, the second gear 22 drives the second baffle 122 to rotate clockwise, and the inclination angle of the second baffle 122 is gradually increased; the baffle driving gear 23 drives the spur rack 24 to slide in the right-down direction, so that the first gear 21 drives the first baffle 121 to rotate anticlockwise, and the inclination angle of the first baffle 121 is gradually increased;
the inclination angle of the baffle is an acute angle between the main body surface of the baffle and the main body surface of the air inlet 111;
it should be noted that the baffle driving mechanism 2 is not limited to a gear-rack mechanism, and the first baffle 121 and the second baffle 122 can be driven by respective motors to achieve independent rotation and rotation of the two baffles in different directions.
A limiting piece 123 is further arranged between the first baffle plate 121 and the second baffle plate 122, and the first baffle plate 121 and the second baffle plate 122 are overlapped on the limiting piece 123 when closed, so that the problems that the first baffle plate 121 and the second baffle plate 122 are interfered with each other or have overlarge intervals when closed are prevented; the problem of current air inlet baffle structure complicated, receive the restriction of outward appearance face to lead to not the adaptation between each part, avoid having the gap in air inlet baffle and casing cooperation department, influence pleasing to the eye, avoid the dust to get into indoor machine by the gap, reduce the dustproof effect of air inlet baffle is solved.
As shown in fig. 4b and 4c, the driving mechanism includes a filter screen driving mechanism 3, which includes an arc-shaped rack 31, a filter screen driving gear 32, a filter screen driven gear 33 and a filter screen driving motor 34; the filter screen driving gear 32 is in driving connection with the filter screen driving motor 34, one end of the filter screen driven gear 33 is meshed with the filter screen driving gear 32, the other end of the filter screen driven gear 33 is meshed with the arc-shaped rack 31, and the arc-shaped rack 31 is connected with the bottom of the filter screen 124 through a connecting piece; a chute 112 is formed on the housing 11, two sides of the filter screen 124 are arranged in the chute 112, and the chute 112 plays a role in guiding and limiting the filter screen 124; the filter screen 124 can be drawn out along the chute 112 for cleaning;
when the filter screen driving motor 34 rotates, the filter screen driving gear 32 is engaged with the filter screen driven gear 33 and drives the filter screen driven gear 33 to rotate, and then the arc-shaped rack 31 drives the filter screen 124 to slide along the chute 112;
specifically, when the filter screen driving motor 34 rotates clockwise, the filter screen driving gear 32 engages with the filter screen driven gear 33 and drives the filter screen driven gear 33 to rotate counterclockwise, and the arc-shaped rack 31 drives the filter screen 124 to slide along the chute 112 and close to the air inlet 111;
when the filter screen driving motor 34 rotates counterclockwise, the filter screen driving gear 32 engages with the filter screen driven gear 33 and drives the filter screen driven gear 33 to rotate clockwise, and the arc rack 31 drives the filter screen 124 to slide along the sliding slot 112 and move away from the air inlet 111.
The air conditioner further includes a controller, a first detection module for detecting air quality in the indoor environment, such as a concentration value of PM2.5, and a second detection module for detecting a position of the filter screen 124; the first detection module and the second detection module transmit detection data to the controller, and the controller further controls the baffle driving motor and the filter screen driving motor 34 to act, so that the control of the air inlet volume is realized.
Example 2
As shown in fig. 6, the present embodiment provides a method for controlling an air intake rate of an indoor unit of an air conditioner, where the air conditioner is the air conditioner in embodiment 1; the air intake control method comprises the following steps:
s1, the indoor unit 1 starts to operate, the first detection module detects a concentration value P1 of PM2.5 in the indoor environment, and transmits detection data to the controller;
s2, the controller judges whether the concentration value P1 of PM2.5 exceeds a preset value P0;
s31, when the P1 does not exceed the P0, the controller controls the filter screen driving motor 34 to operate, and the filter screen 124 slides; the second detection module detects the position of the filter screen 124 and transmits the detection data to the controller;
s32, the controller determines whether the filter screen 124 reaches a second preset position, and when the filter screen 124 reaches the second preset position, the controller controls the filter screen driving motor 34 to stop, and controls the first baffle 121 to rotate to a third preset inclination angle γ at the linear velocity V2;
s33, when the filter screen 124 does not reach the second predetermined position, controlling the first baffle 121 to rotate to the second predetermined inclined angle β at the linear velocity V3, and controlling the second baffle 122 to rotate to the second predetermined inclined angle β at the linear velocity V4;
s4, when the P1 exceeds the P0, the controller controls the filter screen driving motor 34 to act, the filter screen 124 slides to the position right below the air inlet 111, the attenuation effect of the filter screen 124 on the air inlet volume is obvious, and the first baffle 121 and the second baffle 122 are controlled to rotate to a first preset inclination angle alpha at a linear speed V1;
wherein alpha > beta > gamma.
By adjusting the inclination angles of the two baffles, the air return problem of the large air guide plate is solved, the problem of air inlet loss caused by air return of the large air guide plate is avoided, the air inlet amount is adjusted, and dust entering the indoor unit 1 in the operation process of the air conditioner is reduced as much as possible; when the indoor unit 1 stops working, the filter screen 124 slides to the position right below the air inlet 111, and the two baffles are closed to prevent dust from entering the indoor unit 1 to the maximum extent; when the indoor unit 1 works, the two baffles rotate to a preset inclination angle, and the filter screen 124 slides to a preset position, so that the attenuation effect of the filter screen 124 on the air intake is reduced; meanwhile, the filtering effect and the air inlet volume are guaranteed, the air supply volume is further controlled, the cross-flow fan blades 132 of the air conditioner can rotate at a low rotating speed, the effects of energy conservation and consumption reduction are achieved, and better use experience is provided for users.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (13)

1. The air inlet quantity control method of the air-conditioning indoor unit is characterized in that an air inlet is formed in the air-conditioning indoor unit; the outer side of the air inlet is provided with a baffle which can be controlled to rotate; a filter screen which can be controlled to slide is arranged on the inner side of the air inlet; the air intake control method comprises the following steps:
determining the target unit air intake of the indoor unit;
calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake;
and controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position.
2. The air intake control method of an indoor unit of an air conditioner according to claim 1, wherein the controlling of the baffle plate to rotate to a target inclination angle and the filter screen to slide to a target position comprises:
and when the target unit air intake is judged to be less than or equal to the preset air intake, controlling the baffle to rotate to a target inclination angle corresponding to the target unit air intake, and controlling the filter screen to be kept right below the air inlet.
3. The air intake control method of an indoor unit of an air conditioner according to claim 1, wherein the controlling of the baffle plate to rotate to a target inclination angle and the filter screen to slide to a target position further comprises:
when the target unit air intake is judged to be larger than the preset air intake, continuously judging whether the air quality in the environment where the indoor unit is located is larger than the preset quality;
and when the air quality in the environment where the indoor unit is located is larger than the preset quality, controlling the baffle to rotate to a target inclination angle corresponding to the target unit air intake and controlling the filter screen to slide to a target position corresponding to the target unit air intake.
4. The air intake control method of an indoor unit of an air conditioner according to claim 3, wherein the target unit intake Q of the indoor unit is k S, where k is a wind resistance coefficient of the filter screen and S is an effective intake air flow area;
k is related to the position of the filter screen, and the larger the superposed area of the projection of the filter screen and the projection of the air inlet on the same horizontal plane is, the smaller k is; s is related to the inclination angle of the baffle, and the larger the inclination angle of the baffle is, the larger S is.
5. The air inlet amount control method of an indoor unit of an air conditioner as claimed in claim 4, wherein the baffle plate includes a first baffle plate and a second baffle plate oppositely disposed at the air inlet; the first baffle and the second baffle can be independently controlled to rotate;
control the baffle rotates to target inclination and control the filter screen slides to the target location includes:
and when the air quality in the environment where the indoor unit is located is less than or equal to the preset quality, controlling the first baffle and the second baffle to rotate to the same or different inclination angles respectively, so that the S is matched with the Q, and controlling the filter screen to slide to be right below the air inlet.
6. The air intake control method of an indoor unit of an air conditioner according to claim 5, wherein the controlling of the baffle plate to rotate to a target inclination angle and the filter screen to slide to a target position further comprises:
when the air quality in the environment where the indoor unit is located is larger than the preset quality, the first baffle and the second baffle are controlled to rotate to the same or different inclination angles respectively to enable S to be matched with Q, and the filter screen is controlled to slide to a preset position to enable k to be matched with Q.
7. The air inlet quantity control method of the indoor unit of the air conditioner as claimed in claim 5, wherein when the air quality in the environment where the indoor unit is located is less than or equal to a preset quality, the first baffle and the second baffle are controlled to rotate to a first preset inclination angle α, and the filter screen is controlled to slide to a position right below the air inlet;
when the air quality in the environment where the indoor unit is located is larger than the preset quality, controlling the first baffle and the second baffle to rotate to a second preset inclination angle beta, and controlling the filter screen to slide to a first preset position; or
Controlling the first baffle and the second baffle to rotate to a third preset inclination angle gamma, and controlling the filter screen to slide to a second preset position;
alpha > beta > gamma; on the same horizontal plane the projection of the filter screen and the projection coincidence area of the air inlet: the first preset position is smaller than the second preset position.
8. The air intake control method of an indoor unit of an air conditioner according to claim 5 or 6, wherein the controlling of the first flap and the second flap to rotate to the same or different tilt angles, respectively, includes controlling of the first flap and the second flap to rotate at the same or different linear speeds, respectively.
9. A control device for the air intake control method of an indoor unit of an air conditioner according to any one of claims 1 to 8, comprising:
the monitoring module is used for detecting the air quality in the environment where the indoor unit is located;
the calculation module is used for determining the target unit air intake of the indoor unit, calculating a target inclination angle of the baffle corresponding to the target unit air intake and a target position of the filter screen corresponding to the target unit air intake;
the judging module is used for judging whether the target unit air inlet quantity is larger than a preset air inlet quantity or not and whether the air quality in the environment where the indoor unit is located is larger than a preset quality or not;
and the control module is used for controlling the baffle to rotate to a target inclination angle and controlling the filter screen to slide to a target position.
10. A non-transitory computer-readable storage medium, wherein program instructions are stored thereon, and when the program instructions are executed by one or more processors, the one or more processors are configured to implement the air intake control method of the air conditioning indoor unit according to any one of claims 1 to 8.
11. An air conditioner characterized by comprising a control device of the intake air rate control method of an indoor unit of an air conditioner of claim 9 or the non-transitory computer-readable storage medium of claim 10;
the air conditioner also comprises an indoor unit, wherein the indoor unit comprises a shell and a driving mechanism; an air inlet is formed at the top of the shell; a first baffle and a second baffle which are oppositely arranged are arranged on the outer side of the air inlet;
the driving mechanism comprises a baffle driving mechanism, and the first baffle and the second baffle can rotate simultaneously or independently under the action of the baffle driving mechanism.
12. The air conditioner according to claim 11, wherein the barrier driving mechanism includes a spur rack, a first gear, a second gear, and a barrier driving gear; the first baffle is in driving connection with the first gear, and the second baffle is in driving connection with the second gear; the baffle driving gear is in driving connection with the baffle driving motor, and one end of the baffle driving gear is meshed with the second gear; one end of the straight rack is meshed with the first gear, and the other end of the straight rack is meshed with the other end of the driving gear;
when the baffle driving motor rotates, the baffle driving gear drives the second baffle to rotate through the second gear, and the spur rack slides and drives the first baffle to rotate through the first gear.
13. The air conditioner according to claim 11, wherein a filter screen is provided inside the air inlet, and the driving mechanism further comprises a filter screen driving mechanism; the filter screen can slide along the direction close to or far away from the air inlet under the action of the filter screen driving mechanism, and the filter screen driving mechanism comprises an arc-shaped rack, a filter screen driving gear, a filter screen driven gear and a filter screen driving motor; the filter screen driving gear is in driving connection with the filter screen driving motor, one end of the filter screen driven gear is meshed with the filter screen driving gear, the other end of the filter screen driven gear is meshed with the arc-shaped rack, and the arc-shaped rack is connected with the filter screen;
when the filter screen driving motor rotates, the filter screen driving gear drives the filter screen driven gear to rotate, and then the arc-shaped rack drives the filter screen to slide.
CN202111235797.XA 2021-10-22 2021-10-22 Air inlet amount control method and device for indoor unit of air conditioner, medium and equipment Active CN113864866B (en)

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