CN117308183A

CN117308183A - Air port assembly, indoor unit, air conditioner and control method

Info

Publication number: CN117308183A
Application number: CN202311103391.5A
Authority: CN
Inventors: 王启龙; 李玉泽; 王玉龙; 张先令
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2023-12-29

Abstract

The invention provides an air port assembly, an indoor unit, an air conditioner and a control method, relates to the technical field of air conditioners, and solves the technical problems of complex air port structure and high cost. The tuyere assembly comprises a filter screen; the dustproof baffle is movably arranged at the air inlet and can open or close the air inlet; the cleaning brush is movably arranged in the dustproof baffle plate and can extend or retract relative to the dustproof baffle plate; when the dustproof baffle is in an open state, the cleaning brush stretches out to automatically remove dust from the filter screen; the control method comprises the following steps: presetting a cleanliness threshold parameter; acquiring a cleanliness parameter of a filter screen in the air port assembly; and comparing the acquired filter screen cleanliness parameter with a preset cleanliness threshold parameter, and executing subsequent processing steps based on the comparison result. According to the invention, the air inlet is fully closed through the dustproof baffle plate, so that the dustproof effect is achieved, and the cleaning brush is driven to automatically remove dust on the surface of the filter screen by changing the movement direction of the dustproof baffle plate.

Description

Air port assembly, indoor unit, air conditioner and control method

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air port assembly, an indoor unit, an air conditioner and a control method.

Background

In order to prevent dust from falling into the evaporator, a filter screen is arranged at the air inlet of the wall-mounted air conditioner. The filter screen of traditional air conditioner not only needs frequent cleaning maintenance, but also is gradually blocked before cleaning, which can lead to air conditioner air quantity reduction, overall performance reduction and power consumption increase. When the air conditioner is not used, the filter screen is still exposed in the air, and dust prevention is not thorough. In order to solve the naked problem of filter screen, also have among the prior art to set up the air conditioner that can open and close the baffle, but the structure is all more complicated with the filter screen cleaning structure of opening and close of baffle, and dust removal mechanism whole occupation space is big, is unfavorable for structural design, installation and cost control.

Disclosure of Invention

The invention aims to provide an air port assembly, an indoor unit, an air conditioner and a control method, which are used for solving the technical problems of complex air port structure and high cost in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

in a first aspect, the present invention provides a tuyere assembly comprising:

the filter screen is arranged at the inner side of the air inlet to filter the entering air flow;

the dustproof baffle is movably arranged at the air inlet and can swing relative to the air inlet so as to open or close the air inlet;

the cleaning brush is movably arranged in the dustproof baffle plate and can extend or retract relative to the dustproof baffle plate; when the dustproof baffle is in an open state, the cleaning brush stretches out to automatically remove dust from the filter screen.

Further, the cleaning brush is telescopically arranged in the dustproof baffle plate through a second driving mechanism.

Further, the dustproof baffle is rotatably arranged at the air inlet through the first driving mechanism.

Further, the first driving mechanism includes a motor.

Further, the dustproof baffle is of a split structure and consists of a plurality of baffle blocks which are arranged side by side, and the number of the motors is one and is in transmission connection with all the baffle blocks so as to drive all the baffle blocks to swing synchronously; or, the number of the motors is a plurality, each baffle plate is in transmission connection with one motor, and all the motors are synchronous motors.

Further, the number of the cleaning brushes is a plurality, and the cleaning brushes are respectively and telescopically arranged in each baffle plate block through a second driving mechanism.

Further, the second actuating mechanism includes control module, last baffle, extension spring, lower baffle, wherein:

the baffle plate block is internally provided with a containing cavity;

the upper partition plate and the lower partition plate are arranged in the accommodating cavity at intervals so as to divide the accommodating cavity into an upper cavity, a middle cavity and a lower cavity;

the control module is arranged in the upper cavity and connected with the upper partition board, and when the control module is started, the upper partition board can be controlled to apply thrust to the lower partition board, so that the upper partition board and the lower partition board are far away from each other;

the telescopic spring is arranged in the middle cavity, one end of the telescopic spring is abutted against the surface of the upper partition plate, and the other end of the telescopic spring is abutted against the surface of the lower partition plate; when the control module is started, the telescopic spring is in an elongated state;

the cleaning brush is positioned in the lower cavity and connected with the lower partition board, and can move under the drive of the lower partition board.

Further, the control module is a power supply module, the upper partition plate is made of a metal material capable of generating magnetism after being electrified, and the lower partition plate is made of a magnetic material; when the control module supplies power to the upper partition board, the magnetic direction generated on the upper partition board is the same as the magnetic direction of the lower partition board.

According to the air port assembly, the filter screen is combined with the dustproof baffle plate, so that the air inlet of the air conditioner is fully closed when the air conditioner is not in use, dust is prevented from entering from the air inlet, the dustproof effect can be effectively achieved, and the service time of the filter screen is prolonged; when the air conditioner is used, the cleaning brush is arranged on the dustproof baffle plate, the dustproof baffle plate can be controlled to swing to drive the cleaning brush to clean dust on the surface of the filter screen, and two automatic dust removing modes are provided by changing the movement direction of the dustproof baffle plate, so that the air conditioner is simple in structure and lower in cost.

In a second aspect, the invention provides an indoor unit, which comprises a shell, an evaporator, an air inlet and an air inlet assembly; wherein the air inlet is arranged at the top of the shell; the evaporator is arranged in the shell and is positioned below the air inlet; the air inlet assembly is arranged at the air inlet.

Further, the shell comprises a bottom shell, and a bottom shell water channel is arranged on the bottom shell.

Furthermore, the bottom shell water channel is of an inclined water channel structure.

Further, the housing includes a panel, and a dust box is disposed between the panel and the tuyere assembly.

According to the indoor unit provided by the invention, the air inlet of the indoor unit is provided with the air inlet component, so that the air inlet is closed and opened, the problem that dust is easy to accumulate when a filter screen is exposed in the air when the air conditioner is not in use is solved, and the dust-proof baffle can swing in different directions under the drive of the motor by arranging the cleaning brush on the dust-proof baffle, so that the cleaning brush is driven to clean dust on the surface of the filter screen, and the problem of pain points that the filter screen cannot automatically remove dust is solved; the air port assembly, the dustproof baffle plate and the cleaning brush are arranged together, the structure for controlling the movement of the cleaning brush is simple, the occupied space is small, and the problems of complex structure, large space occupation rate and high cost of the existing dust removing mechanism are solved.

In a third aspect, the present invention provides an air conditioner, including the indoor unit.

In a fourth aspect, the present invention provides a control method for automatically dedusting the indoor unit, including:

presetting a cleanliness threshold parameter and a refrigeration starting temperature parameter;

acquiring a cleanliness parameter of a filter screen in the air port assembly;

and comparing the acquired filter screen cleanliness parameter with a preset cleanliness threshold parameter, and executing subsequent processing steps based on the comparison result.

Further, the step of comparing the obtained filter screen cleanliness parameter with a preset cleanliness threshold parameter and executing a subsequent processing step based on the comparison result comprises the following steps:

when the acquired cleanliness parameters of the filter screen are smaller than or equal to preset cleanliness threshold parameters, the indoor unit is controlled to normally operate, and dust removal is not needed;

when the acquired cleanliness parameter of the filter screen is larger than a preset cleanliness threshold parameter, the indoor unit is controlled to start a dust removing mode.

Further, when the obtained filter screen cleanliness parameter is greater than a preset cleanliness threshold parameter, the indoor unit is controlled to start a dust removal mode, which comprises:

acquiring the external environment temperature;

and based on the comparison result, controlling the indoor unit to start the first dust removal mode or the second dust removal mode.

Further, the comparing based on the obtained external environment temperature and the preset refrigeration starting temperature parameter, and based on the comparing result, controlling the indoor unit to start the first dust removing mode or the second dust removing mode, including:

when the acquired external environment temperature is more than or equal to a preset refrigeration starting temperature parameter, the indoor unit starts a first dust removing mode;

and when the acquired external environment temperature is less than the preset refrigeration starting temperature parameter, the indoor unit starts a second dust removal mode.

Further, when the obtained external environment temperature is greater than or equal to a preset refrigeration starting temperature parameter, the indoor unit starts a first dust removal mode, including:

the indoor unit automatically selects a refrigeration mode;

the air deflector is opened to form an included angle alpha with the panel;

the first driving mechanism is started to drive the dustproof baffle to rotate clockwise, and the second driving mechanism is synchronously started to drive the cleaning brush to extend out, so that dust on the filter screen is swept into a water channel of the bottom shell;

the evaporator condensate water flows into the water channel of the bottom shell, and the dust on the evaporator condensate water flows out of the indoor unit through the drain pipe to realize automatic dust removal.

Further, when the acquired external environment temperature is less than a preset refrigeration starting temperature parameter, the indoor unit starts a second dust removal mode, including:

the indoor unit automatically selects a default operation mode;

the first driving mechanism is started to drive the dustproof baffle to rotate anticlockwise, and the second driving mechanism is synchronously started to drive the cleaning brush to extend out, so that dust of the filter screen is swept into the dust box;

when the dust amount in the dust box reaches a preset alarm threshold value, a cleaning reminding alarm is sent out;

opening the panel to withdraw the dust box, clean the dust, and then replace the dust box again to remind the alarm to be released.

The control method can realize automatic dust removal operation under the condition of dirt blocking of the filter screen of the air conditioner indoor unit, and execute different dust removal operation modes according to the running state of the air conditioner indoor unit, so that the application range is enriched, the influence on the running state of the indoor unit is reduced, and the use comfort is improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the air conditioner of the present invention when the air conditioner is turned off;

FIG. 2 is a schematic view of a structure in which a tuyere assembly is opened to perform a dust removing operation when the air conditioner of the present invention is in a cooling mode;

FIG. 3 is a schematic view showing a structure in which a dust removing operation is performed in a state that a tuyere assembly is opened when an air conditioner of the present invention is in a standby mode;

FIG. 4 is a schematic view of the motion structure of the baffle plate in the tuyere assembly of the present invention;

FIG. 5 is a schematic view of a brush retracting mechanism in the tuyere assembly of the present invention;

FIG. 6 is a schematic view of a water channel structure of a bottom shell of the air conditioner according to the present invention;

fig. 7 is a control logic diagram of the control method of the present invention.

1, a panel; 2. an evaporator; 3. a dust box; 4. a dust-proof baffle; 41. cleaning a brush; 42. a baffle rotation center; 43. a telescoping mechanism; 44. a telescopic spring; 45. a control module; 46. an upper partition plate; 47. a lower partition plate; 5. a filter screen; 6. a bottom case; 61. a bottom shell water channel; 7. a fan blade; 8. a panel body; 9. and an air deflector.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.

As shown in fig. 1 to 5, the present invention provides a tuyere assembly comprising:

the filter screen 5 is arranged at the inner side of the air inlet to filter the entering air flow; as shown in fig. 1, in this embodiment, the air inlet is located at the top of the indoor unit, and the filter screen 5 is installed at the air inlet at the top of the indoor unit, so as to filter and remove dust from the incoming air flow; in the filtering process, there is a problem that dust is accumulated on the surface of the filter screen 5, and in the using process, there is a problem that dust enters through the air inlet, so in the invention, the dust-proof baffle 4 is arranged, specifically:

as shown in fig. 4, the dustproof baffle 4 is movably installed at the air inlet and can swing relative to the air inlet to open or close the air inlet; the horizontal solid line in fig. 4 is a schematic view of the dust barrier 4 in the closed state; the vertical dotted line in fig. 4 is a schematic view of the dust barrier 4 in an open state; here, the swing of the dust-proof baffle 4 means that the dust-proof baffle 4 can rotate clockwise or anticlockwise relative to the air inlet, when the dust-proof baffle 4 rotates to the position shown in fig. 1, the dust-proof baffle 4 is in a closed state, when the dust-proof baffle 4 rotates to the position shown in fig. 2 and 3, the dust-proof baffle 4 is in an open state, and when the air conditioner operates normally, the air inlet needs to enter air flow, and the dust-proof baffle 4 needs to be controlled to be opened so as to open the air inlet to enter the air flow. In order to remove dust accumulated on the surface of the filter screen 5 and simplify the dust removing structure, in the present invention, as shown in fig. 2 and 3, a cleaning brush 41 is disposed on the dust-proof baffle 4, specifically:

the cleaning brush 41 is movably arranged in the dustproof baffle plate 4 and can extend or retract relative to the dustproof baffle plate 4; when the dust-proof baffle 4 is in an open state, the cleaning brush 41 extends out to automatically remove dust from the filter screen 5.

In an alternative embodiment of the invention, the dust guard 4 is rotatably mounted at the air inlet by a first drive mechanism. Specifically, the first driving mechanism may take various forms, as shown in fig. 4, as long as it can drive the dust-proof baffle 4 to rotate relative to the baffle rotation center 42, for example, the first driving mechanism includes a motor, and the invention is not limited in terms of which driving structure is adopted.

As an embodiment of the invention, the dustproof baffle plate 4 is of a split structure and consists of a plurality of baffle plate blocks arranged side by side, and the number of motors is one and is in transmission connection with all the baffle plate blocks so as to drive all the baffle plate blocks to swing synchronously;

as another embodiment of the present invention, the dustproof baffle 4 is in a split structure, and is composed of a plurality of baffle blocks arranged side by side, the number of motors is a plurality, each baffle block is in transmission connection with one motor, and all motors are synchronous motors.

In the above two embodiments, the first structure is simpler and has lower cost, and is the optimal embodiment, of course, in this embodiment, the structure that one motor drives all baffle blocks to synchronously move can adopt the guide plate driving structure that the indoor unit performs wind direction guiding in the prior art.

The cleaning brush 41 is telescopically mounted in the dust-proof shutter 4 by a second drive mechanism.

Further, the number of the cleaning brushes 41 is a plurality, and the cleaning brushes are respectively and telescopically arranged in each baffle plate through a second driving mechanism.

In this embodiment, as shown in fig. 5, the second driving mechanism is a telescopic mechanism 43, which includes a control module 45, an upper partition 46, a telescopic spring 44, and a lower partition 47, wherein:

the baffle plate is internally provided with a containing cavity which is of a cavity structure with one end being opened, and the sweeping brush 41 extends or retracts through the opening;

the upper partition 46 and the lower partition 47 are arranged in the accommodating chamber at intervals to divide the accommodating chamber into an upper chamber, a middle chamber and a lower chamber; specifically, the upper partition 46 is fixed in the accommodating chamber and is not movable relative to the accommodating chamber, while the lower partition 47 is movably mounted in the accommodating chamber and is axially movable relative to the accommodating chamber;

the control module 45 is arranged in the upper cavity and connected with the upper partition plate 46, and when the control module 45 is started, the upper partition plate 46 can be controlled to apply thrust to the lower partition plate 47, so that the upper partition plate 46 and the lower partition plate 47 are far away from each other; specifically, the control module 45 is a power-supplying module, which gives current to the upper partition 46 after being electrified, the upper partition 46 is made of a metal material capable of generating magnetism after being electrified, and the lower partition 47 is made of a magnetic material; when the control module 45 supplies power to the upper partition 46, the magnetic direction generated on the upper partition 46 is the same as the magnetic direction of the lower partition 47, and the repulsive force between the upper and lower partitions is controlled by the magnitude of the current. Thus, the upper partition 46 applies a pushing force to the lower partition 47, so that the lower partition 47 moves outwards, and the cleaning brush 41 is driven to move outwards, and the baffle plate is extended. When the upper partition 46 is not electrified, the telescopic spring 44 is in the original position and only bears the gravity of the lower partition 47, the cleaning brush 41 and the upper partition, and no other external force acts on the telescopic spring 44, when the upper partition 46 is electrified, the thrust applied to the lower partition 47 causes the lower partition 47 to move, the telescopic spring 44 is lengthened (elastic potential energy is stored), the cleaning brush 41 stretches out to remove dust, when the dust removal mode is finished, the control module 45 is powered off, after the upper partition 46 is powered off, the upper partition 46 is magnetic, and when the magnetism of the upper partition is eliminated, the telescopic spring 44 releases the stored elastic potential energy, the lower partition 47 can automatically recover to the original position, namely the cleaning brush 41 is retracted.

The telescopic spring 44 is arranged in the middle cavity, one end of the telescopic spring is abutted against the surface of the upper partition 46, and the other end of the telescopic spring is abutted against the surface of the lower partition 47; when the control module 45 is activated, the extension spring 44 is in an extended state;

the cleaning brush 41 is positioned in the lower cavity and connected with the lower partition plate 47, and can move under the drive of the lower partition plate 47.

According to the air port assembly, the filter screen 5 is combined with the dustproof baffle plate 4, so that the air inlet of the air conditioner is fully closed when the air conditioner is not in use, dust is prevented from entering from the air inlet, the dustproof effect can be effectively achieved, and the service time of the filter screen 5 is prolonged; when the air conditioner is used, the dust-proof baffle 4 is provided with the cleaning brush 41, so that the dust-proof baffle 4 can be controlled to swing to drive the cleaning brush 41 to clean dust on the surface of the filter screen 5, and compared with other dust-removing mechanisms, the air conditioner is simple in structure and small in space occupation rate; through changing the direction of dustproof baffle 4 motion, provide two kinds of automatic dust removal's modes, not receive the influence of external environment temperature, all can realize automatic dust removal, simple structure, cost are lower.

As shown in fig. 1 to 3, the indoor unit provided by the invention comprises a shell, an evaporator 2, an air inlet and an air outlet assembly; wherein, the air inlet is arranged at the top of the shell; the evaporator 2 is arranged in the shell and is positioned below the air inlet; the wind gap subassembly is installed in air intake department.

Further, the indoor unit further comprises a fan blade 7 positioned at the lower part of the evaporator 2; the casing includes drain pan 6, panel body 8 and panel 1, drain pan 6 is located the indoor set rear side for on the installation wall body, panel body 8 is indoor set bottom position, panel 1 is indoor set front side position, be provided with drain pan water course 61 on the drain pan 6, thereby drain pan water course 61 is used for accepting the comdenstion water of evaporimeter 2, thereby convenient discharge is swept into to drain pan water course 61 with the dust on the filter screen 5 in, thereby be located the evaporimeter 2 edge and filter screen 5 edge above drain pan water course 61, thereby form a space that does not shelter from above drain pan water course 61, make things convenient for dust and comdenstion water to flow down.

Further, as shown in fig. 6, in order to facilitate water drainage, the bottom water channel 61 has an inclined water channel structure.

A dust box 3 is arranged between the panel 1 and the air port assembly, the dust box 3 and the bottom shell water channel 61 are respectively positioned at two sides of the air port assembly, and the dust box 3 is used for collecting dust brushed down by the cleaning brush 41 in a standby state, a heating or other non-refrigerating state, namely, a non-refrigerating state of the indoor unit; and the bottom water channel 61 is used for collecting dust cleaned when the indoor unit is in a refrigerating state.

Further, an air outlet is arranged at the lower part of the panel 1, and an air deflector 9 is arranged at the opening and closing position of the air outlet.

The invention provides an air conditioner which comprises the indoor unit.

The indoor unit comprises a panel 1, an evaporator 2, a dust box 3, a dustproof baffle 4, a filter screen 5, a bottom shell 6, fan blades 7, a panel body 8 and an air deflector 9, wherein the dustproof baffle 4 is positioned at a top air inlet, namely above the filter screen 5, as shown in fig. 5, a cleaning brush 41 which can stretch out and draw back is arranged at the bottom of the dustproof baffle 4, wherein a telescopic spring 44 is controlled by a control module 45 of a telescopic mechanism 43 to realize the telescopic action of the cleaning brush 41, one end of the telescopic spring 44 is connected with an upper partition 46, the other end of the telescopic spring is connected with a lower partition 47, the lower partition 47 is fixed with the cleaning brush 41, the lower partition 47 is made of a magnetic material, the upper partition 46 is made of a metal material, the control module 45 of the telescopic mechanism 43 is electrified to give current to the upper partition 46, so that the upper partition 46 has the same magnetism as the lower partition 47, the lower partition 47 moves downwards through repulsive force between the upper partition and lower partition, the telescopic spring 44 stretches (stores elastic potential energy) to stretch out the cleaning brush 41, the dust removing mode ends the control module 45 to cut off the upper partition 46, and the telescopic spring 44 releases the stored elastic potential energy to pull the lower partition 47 back the lower partition 47, namely the cleaning brush 41. The cleaning brushes 41 are retracted in the dustproof baffle plates 4 in the non-dedusting state, and in the shutdown state, as shown in fig. 1, all baffle plate blocks of the dustproof baffle plates 4 rotate around respective baffle plate rotating centers 42 to close the whole air inlets to play a dustproof role, in the dedusting state, a long bottom shell water channel 61 is arranged on the bottom shell 6, and a non-shielding space is formed above the bottom shell water channel 61 and the edges of the evaporator 2 and the filter screen 5, so that dust and condensed water can flow down conveniently. As shown in fig. 6, the bottom shell water channel 61 has a certain inclination, one side of the water drain pipeline is arranged at a low position, and the included angle beta between a straight line formed by the upper position of the other side and the horizontal direction cannot be smaller than 1.5 degrees, otherwise, the water drain is not favored.

As shown in fig. 7, the control method provided by the present invention is used for automatically removing dust from an indoor unit, and the method can not only prevent dust, but also can well remove dust automatically, and the control method includes:

after the air conditioner is started, acquiring a cleanliness parameter of dust on the surface of a filter screen in a current air port assembly through a filter screen dirty blockage detector of the air conditioner;

and comparing and judging based on the acquired filter screen cleanliness parameter and a preset cleanliness threshold parameter, and executing the subsequent processing step based on a comparison and judgment result.

The specific position shows that the filter screen has good cleaning state before when the acquired filter screen cleanliness parameter is smaller than or equal to a preset cleanliness threshold parameter, dust removal is not needed, and the indoor unit is controlled to normally operate without dust removal;

when the acquired cleanliness parameter of the filter screen is larger than a preset cleanliness threshold parameter, the indoor unit is controlled to start a dust removing mode (when the condition of combining the refrigerating modes is met, the system defaults to select the optimal refrigerating dust removing mode, and a standby dust removing mode can be selected by people through a remote controller or an APP). At this time, the air conditioner can select a better dust removal mode according to the ambient temperature.

Further, when the acquired filter screen cleanliness parameter is greater than a preset cleanliness threshold parameter, the indoor unit is controlled to start a dust removal mode, which comprises the following steps:

acquiring the external environment temperature;

Further, based on the comparison between the acquired external environment temperature and the preset refrigeration starting temperature parameter, the indoor unit is controlled to start a first dust removal mode or a second dust removal mode based on the comparison result, and the method comprises the following steps:

when the acquired external environment temperature is more than or equal to a preset refrigeration starting temperature parameter, the indoor unit starts a first dust removing mode (a dust removing mode of a refrigeration mode);

in this embodiment, the preset refrigeration start temperature parameter is 20 ℃;

that is, when the external environment temperature is more than or equal to 20 ℃, the condition of starting the refrigeration mode is met, the system defaults to the refrigeration mode, and the standby dust removal mode can be selected artificially.

The specific control steps comprise: the indoor unit automatically selects a refrigeration mode;

as shown in fig. 2, the air deflector 9 is opened to form an angle alpha with the panel 1; in theory, α=0, that is, the cold energy of the air deflector 9 closing the evaporator 2 remains the greatest, and dew is most easily generated, but actually due to supercooling, condensed water is easy to freeze on the evaporator 2, the amount of water dripping is smaller, α is too large, the larger the air outlet is, the larger the air speed is, the less easy to condense, so α cannot be too large or too small, and 10 ° to 30 ° is recommended.

The first driving mechanism is started to drive the dustproof baffle plate 4 to rotate clockwise, and the second driving mechanism is synchronously started to drive the cleaning brush 41 to extend out, so that dust on the filter screen 5 is cleaned into the bottom shell water channel 61;

the condensed water of the evaporator 2 flows into the water channel 61 of the bottom shell, and dust on the water flows out of the indoor unit through the drain pipe to realize automatic dust removal.

Specifically, the air deflector 9 is opened to the position shown in fig. 2, i.e. the evaporator 2 is most prone to generate condensation water, at this time, the included angle between the tangential line of the outer edge of the air deflector 9 and the lower end of the panel 1 is alpha, a motor for controlling the dustproof baffle 4 at the air inlet to move is started, the motor can be one or one baffle block corresponds to a driving motor, so that the dustproof baffle rotates clockwise, the cleaning brush 41 is hidden in the dustproof baffle 4 in a default state, when dust needs to be removed, the cleaning brush 41 stretches out, the cleaning brush 41 rotates clockwise along with the dustproof baffle under the driving of the motor, dust of the filter screen 5 is swept from one end of the panel 1 to the inner side of the bottom shell 6, finally falls into the bottom shell water channel 61, and the dust swept in by the evaporator 2 after flowing into the bottom shell water channel 61 flows out of the air conditioner through a drainage pipeline, so that automatic dust removal is realized, and the dust is not required to be manually cleaned by consumers.

And when the acquired external environment temperature is less than the preset refrigeration starting temperature parameter, the indoor unit starts a second dust removing mode (standby dust removing mode).

that is, when the external environment temperature is less than 20 ℃, that is, the cooling mode cannot be started, if dust is swept into the bottom shell water channel 61, no condensed water is timely flushed away, so that dust is accumulated in the bottom shell water channel 61, and normal drainage of a drain pipe in the subsequent air conditioner cooling mode is affected. At this time, the air conditioner defaults to select the optimal standby dust removal mode.

The specific operation is as follows:

the indoor unit automatically selects a default operation mode; in this embodiment, the default operation mode is a standby operation mode;

the first driving mechanism is started to drive the dustproof baffle plate 4 to rotate anticlockwise, and the second driving mechanism is synchronously started to drive the cleaning brush 41 to extend out, so that dust on the filter screen 5 is swept into the dust box 3;

specifically, the motor for controlling the movement of the dustproof baffle plate 4 is started to rotate anticlockwise, the cleaning brushes 41 extend synchronously, and dust on the filter screen 5 is cleaned into the dust box 3 on the inner side of the panel 1 from the inner side of the bottom shell 6;

when the dust amount in the dust box 3 reaches a preset alarm threshold value, a cleaning reminding alarm is sent out; reminding a customer to clean in time after the dust amount of the dust box 3 reaches a preset alarm threshold;

opening the panel 1 to withdraw the dust box 3 to clean the dust, and then putting the dust back again to remind the alarm to be released. The customer opens panel 1 and pulls out the dust box 3 and clears up the dust back again, reminds the alarm to remove, realizes another dust removal mode under the unable refrigeration mode circumstances of opening.

Compared with the first dust removing mode (refrigerating dust removing mode), the second dust removing mode (standby dust removing mode) is more power-saving, and a customer is required to clean the dust removing box regularly.

Here, first, the "inward" is a direction toward the center of the accommodating space, and the "outward" is a direction away from the center of the accommodating space.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1 are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A tuyere assembly, comprising:

2. The tuyere assembly of claim 1, wherein the sweeping brush is telescopically mounted in the dust guard by a second driving mechanism.

3. The tuyere assembly of claim 2, wherein the second driving mechanism comprises a control module, an upper partition, a telescopic spring, a lower partition, wherein:

the baffle plate block is internally provided with a containing cavity;

4. An indoor unit comprising a housing, an evaporator, an air intake, and the air intake assembly of any one of claims 1-3; wherein the air inlet is arranged at the top of the shell; the evaporator is arranged in the shell and is positioned below the air inlet; the air inlet assembly is arranged at the air inlet.

5. The indoor unit of claim 4, wherein the housing includes a bottom shell having a bottom shell waterway disposed thereon.

6. The indoor unit of claim 5, wherein the bottom housing waterway is of an inclined waterway structure.

7. The indoor unit of claim 4, wherein the housing includes a panel, and wherein a dust box is disposed between the panel and the tuyere assembly.

8. An air conditioner comprising the indoor unit according to any one of claims 4 to 7.

9. A control method, characterized in that it is a method for automatically dedusting an indoor unit according to any one of claims 4 to 7, comprising:

acquiring a cleanliness parameter of a filter screen in the air port assembly;

10. The control method according to claim 9, wherein the comparing the obtained filter screen cleanliness parameter with a preset cleanliness threshold parameter, and performing the subsequent processing step based on the comparison result, comprises:

11. The control method according to claim 10, wherein when the obtained filter screen cleanliness parameter is greater than a preset cleanliness threshold parameter, controlling the indoor unit to start a dust removal mode includes:

acquiring the external environment temperature;

12. The control method according to claim 11, wherein the comparing the obtained external environment temperature with the preset refrigeration starting temperature parameter, and based on the comparison result, controlling the indoor unit to start the first dust removal mode or the second dust removal mode includes:

13. The control method according to claim 12, wherein when the obtained external ambient temperature is greater than or equal to a preset refrigeration start temperature parameter, the indoor unit starts a first dust removal mode, including:

the indoor unit automatically selects a refrigeration mode;

the air deflector is opened to form an included angle alpha with the panel;

14. The control method according to claim 12, wherein when the acquired external environment temperature is less than a preset cooling start temperature parameter, the indoor unit starts a second dust removal mode, including:

the indoor unit automatically selects a default operation mode;