CN109323330B - Air conditioner indoor unit, control method and control device - Google Patents
Air conditioner indoor unit, control method and control device Download PDFInfo
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- CN109323330B CN109323330B CN201811277738.7A CN201811277738A CN109323330B CN 109323330 B CN109323330 B CN 109323330B CN 201811277738 A CN201811277738 A CN 201811277738A CN 109323330 B CN109323330 B CN 109323330B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000000428 dust Substances 0.000 claims abstract description 97
- 238000004140 cleaning Methods 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000004378 air conditioning Methods 0.000 claims abstract description 14
- 230000008021 deposition Effects 0.000 claims description 27
- 230000004888 barrier function Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 2
- 241000883990 Flabellum Species 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 241001417527 Pempheridae Species 0.000 description 5
- 238000010408 sweeping Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000750 progressive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- 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
- F24F11/32—Responding to malfunctions or emergencies
-
- 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
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
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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)
- Air Conditioning Control Device (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention discloses an air conditioner indoor unit, a control method and a control device, and belongs to the field of air conditioners. This machine in air conditioning includes the housing, sets up cross flow fan in the housing, still includes: the cleaning brush is arranged on one side of the cross flow fan along the length extension direction of the cross flow fan; the first driving mechanism is used for driving the cleaning brush to rotate from the first direction to the second direction, so that the bristles of the cleaning brush are in contact with the fan blades of the cross-flow fan in the second direction. According to the invention, the cleaning brush is driven to rotate to the second direction by controlling the first driving mechanism, so that the cleaning brush is in contact with the fan blades of the cross-flow fan, when the cross-flow fan rotates, the fan blades sequentially sweep from the bristles of the cleaning brush, and dust falls off and is collected by the dust collecting structure, thereby realizing self-cleaning and dust collecting treatment of the cross-flow fan; the first driving mechanism is controlled to drive the cleaning brush to rotate to the first direction, so that the cross-flow fan and other components are prevented from being touched, the occupation of the inner space of the indoor unit of the air conditioner is reduced, and the waste of the space is avoided.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit, a control method and a control device.
Background
The circulating air of the air conditioner is cleaned by the dust filter screen at the air inlet of the air conditioner, the dust penetrating through the dust filter screen is adhered to the evaporator, and the dust passing through the evaporator falls on the cross-flow fan. The cross flow fan of the air conditioner is one of the most difficult parts to be disassembled, and the disassembling of the fan needs to completely disassemble all the used parts, thus bringing great trouble to the cleaning of dust on the cross flow fan. The crossflow fan cannot be cleaned by frost formation as the evaporator is self-cleaning. The accumulated dust can be directly thrown out of the fan and spread to the air in the room through the air duct, and the air quality is affected. If the cross-flow fan cannot be cleaned in time, the air blown by the air conditioner still carries dust on the fan.
Disclosure of Invention
The embodiment of the invention provides an air conditioner indoor unit, a control method and a control device, which are used for cleaning a cross-flow fan. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the embodiments of the present invention, there is provided an indoor unit of an air conditioner, including a casing in which a cross flow fan is disposed, further including: the cleaning brush is arranged on one side of the cross flow fan along the length extension direction of the cross flow fan; the first driving mechanism is used for driving the cleaning brush to rotate from a first direction to a second direction, so that the bristles of the cleaning brush are in contact with the fan blades of the cross-flow fan in the second direction.
In some optional embodiments, the cleaning brush comprises a first rotating shaft, the first rotating shaft extends along the length direction of the cross-flow fan, and bristles are arranged on the first rotating shaft.
In some optional embodiments, the housing interior further comprises a dust collection structure disposed below the sweeper brush.
In some optional embodiments, an air flow passage is provided between the dust collecting structure and the cross-flow fan, the air flow passage is communicated with the air outlet of the casing, and the casing further comprises: the second driving mechanism is connected with the blocking piece and drives the blocking piece to rotate so as to block the airflow channel.
In some alternative embodiments, the barrier comprises: the second rotating shaft extends along the length direction of the cross flow fan, the baffle is arranged on the second rotating shaft, and the second driving mechanism drives the second rotating shaft to rotate so that the baffle shields the airflow channel.
In some alternative embodiments, the dust collection structure is a drip tray.
According to a second aspect of the embodiments of the present invention, there is provided a control method for an air conditioning indoor unit, which is used in any one of the optional embodiments of the air conditioning indoor unit, and includes: detecting the current of a motor driving the cross-flow fan to rotate; judging the dust deposition degree of the surface of the cross flow fan according to the current condition; and controlling the indoor unit of the air conditioner to start a cleaning mode according to the dust deposition degree on the surface of the cross flow fan.
In some optional embodiments, the controlling the air conditioner start-up sweeping mode according to the dust deposition degree of the surface of the cross flow fan comprises: and controlling the cleaning brush to rotate to a second direction and controlling the cross-flow fan to rotate reversely.
In some optional embodiments, when the dust deposition degree on the surface of the cross flow fan reaches a preset condition, the method further comprises controlling the baffle to close the airflow channel.
According to a third aspect of the embodiments of the present invention, there is provided a control device for an indoor unit of an air conditioner, including: the current sensor is used for detecting the current of a motor for driving the cross-flow fan to rotate; and the controller judges the dust deposition degree on the surface of the cross flow fan according to the current condition and controls the indoor unit of the air conditioner to start the cleaning mode according to the dust deposition degree on the surface of the cross flow fan.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the invention, the cleaning brush is arranged in the housing, the first driving mechanism is controlled to drive the cleaning brush to rotate to the second direction, so that the cleaning brush is in contact with the fan blades of the cross-flow fan, when the cross-flow fan rotates, the fan blades sequentially sweep from the bristles of the cleaning brush, and dust falls off and is collected by the dust collecting structure, so that the self-cleaning and dust collecting treatment of the cross-flow fan is realized; the first driving mechanism is controlled to drive the cleaning brush to rotate to the first direction, so that the cross-flow fan and other components are prevented from being touched, the occupation of the inner space of the indoor unit of the air conditioner is reduced, and the waste of the space is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view illustrating an indoor unit of an air conditioner according to an exemplary embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view illustrating a cleaning state of an indoor unit of an air conditioner according to an exemplary embodiment;
FIG. 4 is an enlarged view of portion B of FIG. 3;
fig. 5 is a partial structural schematic view of an indoor unit of an air conditioner according to another exemplary embodiment;
fig. 6 is a partial structural view illustrating a cleaning state of an indoor unit of an air conditioner according to another exemplary embodiment;
fig. 7 is a schematic structural view illustrating an indoor unit of an air conditioner according to another exemplary embodiment;
fig. 8 is a schematic structural view illustrating a gear set of an indoor unit of an air conditioner according to an exemplary embodiment;
fig. 9 is a schematic view illustrating a structure of an air conditioning indoor unit according to an exemplary embodiment when a ratio of a first gear to a second gear is 2: 1;
fig. 10 is a schematic view illustrating state switching of a sweeper brush and a baffle of an indoor unit of an air conditioner according to an exemplary embodiment;
fig. 11 is a flowchart illustrating a control method of an indoor unit of an air conditioner according to an exemplary embodiment;
fig. 12 is a block diagram illustrating a control apparatus of an air conditioning indoor unit according to an exemplary embodiment.
In the figure, 1, a housing; 2. a cross-flow fan; 20. a fan blade; 3. a dust collecting structure; 4. cleaning with a brush; 41. a first rotating shaft; 42. brushing; 5. a barrier; 51. a second rotating shaft; 52. a baffle plate; 6. an air flow channel; 71. a first gear; 72. a second gear; 800. a control device; 810. a current sensor; 820. a controller; 821. a judgment unit; 822. a first control unit.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.
Herein, the term "plurality" means two or more, unless otherwise specified.
Herein, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B represents: a or B.
Herein, the term "and/or" is an associative relationship describing objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
Fig. 1 is a schematic structural view illustrating an indoor unit of an air conditioner according to an exemplary embodiment; FIG. 2 is an enlarged view of portion A of FIG. 1; fig. 3 is a schematic structural view illustrating a cleaning state of an indoor unit of an air conditioner according to an exemplary embodiment; fig. 4 is an enlarged view of a portion B of fig. 3.
As shown in fig. 1, an indoor unit of an air conditioner includes a casing 1, a cross flow fan 2 is disposed in the casing 1, and the indoor unit further includes: a cleaning brush 4 arranged at one side of the cross flow fan 2 along the length extension direction of the cross flow fan 2; and the first driving mechanism is used for driving the cleaning brush 4 to rotate from the first direction to the second direction, so that the bristles 42 of the cleaning brush 4 are in contact with the fan blades 20 of the cross-flow fan 2 in the second direction.
In this embodiment, the first driving mechanism drives the cleaning brush 4 to rotate from the first direction to the second direction, so that the brush bristles 42 of the cleaning brush 4 are in contact with the blades 20 of the cross-flow fan 2. When the cross flow fan 2 rotates, the fan blades 20 sequentially sweep the bristles 42 of the sweeping brush 4, and the dust on the fan blades 20 is swept by the bristles 42. When the air conditioner in this embodiment normally used, sweeper brush 4 does not interfere crossflow fan 2, and when the mode was cleaned in the start, sweeper brush 4 cleaned flabellum 20 through rotating to suitable position, avoided using for a long time because of the air conditioner, accumulated dust on crossflow fan 2, and then influenced the cleanliness factor of air-out.
Optionally, the casing 1 further comprises a heat exchanger inside, and the sweeping brush 4 is arranged between the heat exchanger and the cross-flow fan 2. Thus, the space inside the housing 1 can be utilized rationally.
Optionally, the first direction is a vertical direction. Optionally, the distance between the cleaning brush 4 positioned in the first direction and the heat exchanger is a, and a is more than or equal to 0.5cm and less than or equal to 1 cm. Optionally, the distance between the cleaning brush 4 in the first direction and the vertical tangent of the cross-flow fan 2 close to the cleaning brush 4 is b, and b is more than or equal to 1.5cm and less than or equal to 2 cm. Thus, not only can interference of the cleaning brush 4 to the cross flow fan 2 be avoided in a non-cleaning state, but also resistance to outflow of the air flow can be reduced.
Optionally, the second direction is a horizontal direction. Thus, the cleaning force of the cross flow fan 2 is moderate.
Optionally, the second direction is an upward tilt state or a downward tilt state. Optionally, the included angle between the second direction and the horizontal direction is 30-45 degrees. Thus, the distance between the cleaning brush 4 and the cross flow fan 2 can be shortened, and more space can be saved. When the second direction is the tilt up state, the effort increases for the horizontal direction between cleaning brush 4 and flabellum 20, cleans the dynamics stronger, is fit for the more condition of dust, and when the second direction was the tilt down state, the effort reduced for the horizontal direction between cleaning brush 4 and flabellum 20, and is less to the influence of flabellum 20, is fit for the less condition of dust.
Optionally, the length of the sweeper brush 4 is adapted to the length of the crossflow fan 2. Optionally, the cleaning brush 4 includes a first rotating shaft 41, the first rotating shaft 41 extends along the length direction of the cross flow fan 2, bristles 42 are arranged on the first rotating shaft 41, and the first driving mechanism drives the first rotating shaft 41 to rotate. Alternatively, the bristles 42 extend in a radial direction of the first rotating shaft 41, and the bristles 42 rotate from the first direction to the second direction about the first rotating shaft 41. For example, when the air conditioning indoor unit is normally operated (cooling/heating/dehumidifying mode), as shown in fig. 1 and 2, the bristles 42 of the cleaning brush 4 are vertically upward, and at this time, the bristles 42 are not in contact with the blades 20 of the cross flow fan 2, and the cleaning brush 4 does not interfere with the rotation of the cross flow fan 2; when the cleaning mode is started, as shown in fig. 3 and 4, the cleaning brush 4 is driven by the first driving mechanism to rotate from the vertical direction to the side close to the cross flow fan 2 until the brush bristles 42 are in the horizontal direction, and thus, are in contact with the fan blades 20. In this way, when the cross flow fan 2 rotates, the plurality of blades 20 are sequentially swept by the brush bristles 42 of the cleaning brush 4, and dust on the blades 20 is swept down by the brush bristles 42. The fan blades 20 have a certain radian, in a normal operation mode, the cross flow fan 2 rotates in a forward direction, the rotating direction is shown by a dotted line in fig. 2, in a cleaning mode, the cross flow fan 2 rotates in a reverse direction, and the rotating direction is shown by a dotted line in fig. 4, so that the contact area between the fan blades 20 and the cleaning brush 4 is increased, and the cleaning effect is improved.
Optionally, the first drive mechanism is a motor. The driving shaft of the motor is connected with the first rotating shaft 41 to drive the first rotating shaft 41 to rotate. The motor is fixedly arranged inside the housing 1, and the first rotating shaft 41 is rotatably connected with the inner wall of the housing 1. Alternatively, the motor is a stepper motor, model 28BYJ 48. Therefore, the cleaning brush can be driven to rotate stably, and the space occupation of the interior of the air conditioner indoor unit is reduced.
Optionally, the housing 1 further comprises a dust collecting structure 3 inside, and the dust collecting structure 3 is disposed below the cleaning brush 4. Alternatively, the dust collecting structure 3 may be a dust box or a dust chute. After the dust box or the dust collecting groove is used for a period of time, the dust box or the dust collecting groove needs to be taken out to clean dust. Therefore, the air conditioner indoor unit can collect dust generated by cleaning. Optionally, the dust collecting structure 3 extends along the length of the cross flow fan 2, and the dust collecting structure 3 is adapted to the length of the cleaning brush 4. In this way, as much dust as possible can be collected.
Optionally, the dust collecting structure 3 is a water pan. The water pan is used for collecting condensed water generated in the housing 1, and dust falls into the water pan and is not easy to float out of the water pan after being mixed with the condensed water. Optionally, the water tray comprises a drain. In this way, dust can be flushed out of the indoor unit of the air conditioner. This embodiment can collect the dust with the water collector rational utilization in the air conditioning indoor set, can handle the dust again, has promoted the automatically cleaning effect of air conditioning indoor set.
As shown in fig. 2, an airflow channel 6 is disposed between the dust collecting structure 3 and the cross flow fan 2, the airflow channel 6 is communicated with an air outlet of the housing 1, and the housing 1 further includes: the baffle member 5 and a second driving mechanism, the second driving mechanism is connected with the baffle member 5, and the second driving mechanism drives the baffle member 5 to rotate so as to block the airflow channel 6.
In this embodiment, the airflow channel 6 is used to enable the air inside the housing 1 to flow to the air outlet and then flow out of the housing 1. When the cleaning brush 4 cleans the cross flow fan 2, the baffle piece 5 rotates to shield the airflow channel 6, so that dust generated by cleaning can be prevented from diffusing to the outside of the indoor unit of the air conditioner.
In the indoor unit of the air conditioner, an airflow channel 6 is also arranged between one side of the cross-flow fan 2, which is far away from the cleaning brush 4, and the housing 1, and the airflow channel 6 is communicated with the air outlet. Therefore, when the baffle 5 blocks the airflow channel 6 between the dust collecting structure 3 and the cross flow fan 2, the air can still flow out from the other airflow channel 6, and the air outlet of the indoor unit of the air conditioner is not affected.
As shown in fig. 2 to 6, the barrier 5 includes: the second rotating shaft 51 extends along the length direction of the cross flow fan 2, the baffle plate 52 is arranged on the second rotating shaft 51, and the second driving mechanism drives the second rotating shaft 51 to rotate so that the baffle plate 52 blocks the airflow channel 6. Therefore, the air conditioner indoor unit can normally discharge air in the normal mode, and can prevent dust from being blown out in the cleaning mode.
Alternatively, the second driving mechanism drives the baffle 52 to rotate from the third direction to the fourth direction, so that the baffle 5 blocks the airflow channel 6 when rotating to the fourth direction. This embodiment can reduce the obstruction of the air inside the air conditioning indoor unit by the barrier 5 and reduce the space occupation.
Alternatively, as shown in fig. 2, the third direction is parallel to the dust collecting structure 3. Rotation of the flap 52 to the third orientation may reduce interference with the airflow.
Alternatively, as shown in FIG. 4, the angle between the fourth direction and the horizontal direction is α, and 20 ≦ α ≦ 60. In this way, not only dust can be blocked, but also dust falling onto the baffle plate 52 can be guided into the dust collecting structure 3.
Optionally, the barrier 5 extends along the length of the crossflow fan 2. Optionally, the barrier 5 is adapted to the length of the dust collecting structure 3. In this way, dust can be sufficiently blocked from entering the airflow passage 6.
Fig. 5 is a partial structural schematic view of an indoor unit of an air conditioner according to another exemplary embodiment; fig. 6 is a partial structural view illustrating a cleaning state of an indoor unit of an air conditioner according to another exemplary embodiment.
As shown in fig. 5 and 6, the barrier 5 is disposed on the upper portion of the dust collecting structure 3 on the side close to the cross flow fan 2. In this way, when the barrier member 5 rotates from the third direction to the fourth direction, the included angle of rotation is reduced compared to the previous embodiment, and the switching between the two directions can be performed more quickly.
Alternatively, as shown in fig. 7, the first direction is vertically downward. Alternatively, as shown in fig. 8, the second drive mechanism includes: a first gear 71 and a second gear 72 which are meshed with each other, wherein the first gear 71 is sleeved on the first rotating shaft 41, and the second gear 72 is sleeved on the second rotating shaft 51. In the present embodiment, the driving force of the first driving mechanism is transmitted through the first gear 71 and the second gear 72, so that the second rotating shaft 51 is rotated. In the embodiment, the cleaning brush 4 and the baffle plate 52 are driven by one motor, so that the structure of the functional assembly is simplified, the space is saved, and the control is convenient.
Alternatively, as shown in fig. 9, the angle between the third direction and the fourth direction is 180 °, the angle between the first direction and the second direction is 90 °, and the ratio of the diameters of the first gear 71 and the second gear 72 is 2: 1. Thus, when the first gear 71 rotates by 90 °, the second gear 72 can rotate by 180 °, as shown in fig. 10, in which the dotted line indicates the position of the cleaning brush 4 and the barrier 52 in the non-cleaning state, the solid line indicates the position of the cleaning brush 4 and the barrier 52 rotated to the cleaning state, and when the ratio of the first gear 71 to the second gear 72 is 2:1, the cleaning brush 4 rotates by 90 ° from the first direction to the second direction, and the barrier 52 rotates by 180 ° from the third direction to the fourth direction.
Optionally, the second drive mechanism is a motor. The driving shaft of the motor is connected with the second rotating shaft 51 to drive the second rotating shaft 51 to rotate. The motor is fixedly arranged inside the housing 1, and the second rotating shaft 51 is rotatably connected with the inner wall of the housing 1. Optionally, the motor is a stepper motor. Alternatively, the stepper motor model is 28BYJ 48.
Fig. 11 is a flowchart illustrating a control method of an air conditioning indoor unit according to an exemplary embodiment.
As shown in fig. 11, a method for controlling an indoor unit of an air conditioner includes:
and S701, detecting the current of a motor for driving the cross flow fan to rotate.
The current can be detected by providing a current sensor.
S702, judging the dust deposition degree of the surface of the cross flow fan according to the current condition.
In this embodiment, the greater the weight of the crossflow fan, the greater the current of the motor driving it in rotation.
And S703, controlling the indoor unit of the air conditioner to start a cleaning mode according to the dust deposition degree on the surface of the cross flow fan.
When dust is deposited on the surface of the cross-flow fan, the weight of the cross-flow fan is increased, and the current required when the cross-flow fan is driven is also increased, so that the dust deposition degree on the surface of the cross-flow fan can be known by detecting the current of a motor for driving the cross-flow fan to rotate. According to the embodiment, the cleaning of the cross flow fan is started according to the dust deposition degree on the surface of the cross flow fan, so that the cleaning is more reasonable.
Optionally, controlling the air conditioner start-up sweeping mode according to the dust deposition degree on the surface of the cross flow fan, comprising: when the dust deposition degree on the surface of the cross flow fan reaches a preset condition, the cleaning brush is controlled to rotate to the second direction, and the cross flow fan is controlled to rotate reversely.
Optionally, the rotating speed of the reverse rotation of the cross-flow fan is 50-100 r/min.
Optionally, the second direction is a horizontal direction. Therefore, the cleaning force of the cross flow fan is moderate.
Optionally, the second direction is an upward tilt state or a downward tilt state. Optionally, the included angle between the second direction and the horizontal direction is 30-45 degrees. Therefore, the distance between the cleaning brush and the cross flow fan can be shortened, and more space is saved. When the second direction is the tilt up state, effort is great between brush cleaner and the flabellum, cleans the dynamics stronger, is fit for the more condition of dust, and when the second direction was the tilt down state, effort was less between brush cleaner and the flabellum, and is less to the influence of flabellum, is fit for the less condition of dust.
Optionally, the preset condition is that the current difference is 0mA < DeltaI ≦ 0.5mA, DeltaI ≦ I2-I1Wherein, I1No dust on the surface of the cross flow fanCurrent passing through dust, I2Is the detected current of the cross flow fan. The current of the cross flow fan is detected after the cross flow fan is operated for a certain period of time. Thus, the degree of dust deposition on the surface of the cross flow fan can be known.
Optionally, when the dust deposition degree on the surface of the cross flow fan reaches a preset condition, the method further comprises the step of controlling the baffle to close the airflow channel. Optionally, the barrier is controlled to rotate from the third direction to the fourth direction. In this manner, dust is blocked from drifting out of the airflow passage when the cross-flow fan is being swept.
Alternatively, as shown in fig. 2, the third direction is parallel to the dust collecting structure. The baffle rotates to the third direction, and the interference to the airflow can be reduced in the non-cleaning state.
Alternatively, as shown in FIG. 4, the angle between the fourth direction and the horizontal direction is α, and 20 ≦ α ≦ 60. So, it is better for the effect that the horizontal direction blockked the dust, can also be with falling into the leading-in dust collecting structure of dust on the baffle.
Fig. 12 is a block diagram illustrating a control apparatus of an air conditioning indoor unit according to an exemplary embodiment.
As shown in fig. 12, a control device 800 of an air conditioning indoor unit includes: a current sensor 810 for detecting a current of a motor driving the cross flow fan to rotate; and the controller 820 is used for judging the dust deposition degree on the surface of the cross flow fan according to the current condition and controlling the indoor unit of the air conditioner to start a cleaning mode according to the dust deposition degree on the surface of the cross flow fan. The weight of the cross-flow fan can be increased due to the dust deposition on the surface of the cross-flow fan, and further the current required when the cross-flow fan is driven is increased, so that the dust deposition degree on the surface of the cross-flow fan can be known by detecting the current of a motor for driving the cross-flow fan to rotate. The control device 800 enables the indoor unit of the air conditioner to automatically clean the cross-flow fan according to the dust deposition degree, and is convenient and efficient.
Optionally, the controller 820 includes: a judging unit 821 for judging whether the dust deposition degree on the surface of the cross flow fan reaches a preset condition; and a first control unit 822, configured to control the sweeping brush to rotate to the second direction and control the cross-flow fan to rotate in the reverse direction according to the determination result of the determination unit 821.
Wherein the preset conditions are that the current difference value is 0 mA-delta I less than or equal to 0.5mA, and delta I is I2-I1Wherein, I1The current passing through the cross-flow fan without dust on the surface I2Is the detected current of the cross flow fan. Thus, the degree of dust deposition on the surface of the cross flow fan can be known.
In the embodiment, the cross flow fan is controlled to rotate reversely, so that the contact area between the fan blades and the cleaning brush is larger, and the cleaning effect is better.
Optionally, the first control unit 822 is further configured to control the barrier to close the airflow channel according to the determination result of the determining unit.
Optionally, the first control unit controls the barrier member to rotate from the third direction to the fourth direction according to the judgment result of the judgment unit, so as to close the airflow channel. Thus, when the cross flow fan is cleaned, dust can be prevented from flying out of the airflow channel.
Alternatively, as shown in fig. 2, the third direction is parallel to the dust collecting structure. The baffle rotates to the third direction, and the interference to the airflow can be reduced.
Alternatively, as shown in FIG. 4, the angle between the fourth direction and the horizontal direction is α, and 20 ≦ α ≦ 60. Thus, not only can the dust be blocked, but also the dust falling onto the baffle can be guided into the dust collecting structure.
In the embodiments disclosed herein, it should be understood that the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
It should be understood that the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. The present invention is not limited to the procedures and structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (7)
1. The utility model provides an indoor unit of air conditioner, includes the housing, set up cross flow fan in the housing, its characterized in that still includes:
the cleaning brush is arranged on one side of the cross flow fan along the length extension direction of the cross flow fan;
the first driving mechanism is used for driving the cleaning brush to rotate from a first direction to a second direction, so that the bristles of the cleaning brush are in contact with the fan blades of the cross-flow fan in the second direction;
the inner part of the housing also comprises a dust collecting structure which is arranged below the cleaning brush; an airflow channel is arranged between the dust collecting structure and the cross flow fan and is communicated with an air outlet of the housing;
still include in the housing: the second driving mechanism is connected with the blocking piece and drives the blocking piece to rotate so as to block the airflow channel;
the barrier comprises: the second rotating shaft extends along the length direction of the cross-flow fan, the baffle is arranged on the second rotating shaft, the second driving mechanism drives the baffle to rotate from the third direction to the fourth direction, the blocking piece shields the airflow channel when rotating to the fourth direction, the included angle between the fourth direction and the horizontal direction is alpha, and alpha is more than or equal to 20 degrees and less than or equal to 60 degrees.
2. An indoor unit of an air conditioner according to claim 1, wherein the cleaning brush includes a first rotary shaft extending in a longitudinal direction of the cross flow fan, and the first rotary shaft is provided with brush bristles.
3. An indoor unit of an air conditioner according to claim 1, wherein the dust collecting structure is a water pan.
4. A control method of an air conditioning indoor unit, for the air conditioning indoor unit of claim 1, 2, or 3, characterized by comprising:
detecting the current of a motor driving the cross-flow fan to rotate;
judging the dust deposition degree of the surface of the cross flow fan according to the current condition;
and controlling the indoor unit of the air conditioner to start a cleaning mode according to the dust deposition degree on the surface of the cross flow fan.
5. The control method of the indoor unit of the air conditioner according to claim 4, wherein the controlling of the air conditioner start cleaning mode according to the degree of dust deposition on the surface of the cross flow fan includes:
and controlling the cleaning brush to rotate to a second direction and controlling the cross-flow fan to rotate reversely.
6. The control method of an indoor unit of an air conditioner according to claim 5, further comprising controlling the barrier to close the air flow path when the degree of deposition on the surface of the cross flow fan reaches a predetermined condition.
7. A control device for an indoor unit of an air conditioner, comprising:
the current sensor is used for detecting the current of a motor for driving the cross-flow fan to rotate;
and the controller judges the dust deposition degree on the surface of the cross flow fan according to the current condition and controls the indoor unit of the air conditioner to start the cleaning mode according to the dust deposition degree on the surface of the cross flow fan.
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| CN201811277738.7A CN109323330B (en) | 2018-10-30 | 2018-10-30 | Air conditioner indoor unit, control method and control device |
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| WO2020253346A1 (en) * | 2019-06-17 | 2020-12-24 | 宁波奥克斯电气股份有限公司 | Air conditioner fan blade dust removing device and method, and air conditioner |
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Effective date of registration: 20201230 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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