A wall-mounted air conditioner indoor unit

Abstract

The utility model provides a wall -hanging type air conditioner indoor unit, including the casing, air duct subassembly, upper air deflector and lower air deflector, and the casing forms upper air outlet and lower air outlet, air duct subassembly sets up in the inside of casing and forms main air duct and vice air duct, upper air deflector sets up at upper air outlet, and lower air deflector sets up at lower air outlet, wall -hanging type air conditioner indoor unit is in upper air -out mode, and upper air outlet is in open state, and lower air outlet is in closed state, and main air duct, vice air duct and upper air outlet form upper air -out flow path in proper order and are communicated, and upper air deflector can guide the air current of upper air -out flow path to the front of casing, wall -hanging type air conditioner indoor unit is in lower air -out mode, and upper air outlet is in closed state, and lower air outlet is in open state, and main air duct, air deflector and lower air outlet form lower air -out flow path in proper order and are communicated, can choose different air supply direction according to refrigeration or heating demand, thereby avoid cold wind direct -blowing human body, and realize hot air downward delivery.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, and in particular relates to a wall-mounted air conditioner indoor unit. Background Technology

[0002] Wall-mounted air conditioner indoor units generally use a single air outlet for air delivery, meaning that air is delivered through the same outlet in both cooling and heating modes. This method has comfort drawbacks in actual use: when cooling, the cold air blowing directly on people can easily cause discomfort; when heating, hot air is less dense and has difficulty sinking, resulting in slow heating of the lower part of the room and creating a vertical temperature difference.

[0003] To address these issues, existing technologies have introduced indoor units with multiple air vents to control the path of heating and cooling airflow. However, these designs often feature complex duct structures, hindering efficient and flexible heating and cooling airflow, resulting in limited improvement in airflow performance and a poor user experience. Utility Model Content

[0004] In view of this, the present invention provides a wall-mounted air conditioner indoor unit to solve the problems of existing wall-mounted air conditioner indoor units that control the cooling and heating air delivery path by setting multiple air outlets, resulting in complex air duct structure, inability to achieve efficient and flexible cooling and heating air delivery, and poor air delivery effect.

[0005] This utility model provides a wall-mounted air conditioner indoor unit, comprising: The housing has an upper air outlet on its front wall and a lower air outlet on its bottom wall. An air duct assembly is disposed inside the housing, and the air duct assembly forms a main air duct and a secondary air duct; An upper air guide plate and a lower air guide plate are provided. The upper air guide plate is movably disposed at the upper air outlet and is used to open and close the upper air outlet and / or adjust the air outlet direction. The lower air guide plate is movably disposed at the lower air outlet and is used to open and close the lower air outlet and / or adjust the air outlet direction. The wall-mounted air conditioner indoor unit has both top air outlet and bottom air outlet configurations. When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, the upward air outlet is in the open state and the downward air outlet is in the closed state. The main air duct, the secondary air duct and the upward air outlet are connected in sequence to form an upward air outlet flow path. The upper air guide plate can guide the airflow discharged from the upward air outlet flow path to the front of the casing. When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the upper air outlet is in the closed state, the lower air outlet is in the open state, an air guide is formed between the lower air guide plate and the air duct wall of the main air duct, and the main air duct, the air guide, and the lower air outlet are connected in sequence to form a downward air outlet flow path.

[0006] Further optionally, the air duct assembly includes a rear shell, a lower volute, and a front shell arranged sequentially from back to front; a main air duct is formed between the rear shell and the lower volute, the front shell and the lower volute are connected, and a secondary air duct is formed between the front shell and the front wall of the housing; the front shell is provided with an upper volute at a position corresponding to the upper air outlet; The upper air guide plate includes an upper abutting end, a free end, and an upper rotating end that are arranged opposite to each other in its length direction. The upper rotating end is located between the upper abutting end and the free end, and the upper rotating end is rotatably disposed at the upper air outlet. The lower air guide plate includes a lower abutting end and a lower rotating end that are arranged opposite to each other in its length direction. The lower rotating end is rotatably disposed at the lower air outlet. When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, the upper abutting end abuts against the upper volute tongue, and the free end is located in front of the casing; When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the lower abutment end abuts against the lower volute tongue.

[0007] Further optionally, the lower volute tongue includes a front section and a rear section of the lower volute tongue that are arranged opposite to each other and connected, and the front shell includes an upper section and a lower section of the front shell that are arranged opposite to each other; the front section of the lower volute tongue, the lower section of the front shell and the upper section of the front shell are arranged sequentially from back to front and connected, and the upper volute tongue is located at the connection between the upper section of the front shell and the lower section of the front shell; When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, the lower section of the front shell, the upper volute, and the upper air guide plate are arranged sequentially and form a continuous upward air outlet profile. When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the lower abutment end abuts against the connection between the front section and the rear section of the lower volute tongue, and the rear section of the lower volute tongue and the lower air guide plate are arranged sequentially to form a continuous downward air outlet profile.

[0008] Further optionally, the profile of the lower section of the front shell is a straight line that slopes forward from bottom to top, the profile of the upper volute is an arc, and the profile of the upper air guide plate is a straight line that extends in the horizontal direction. The profile of the front section of the lower volute tongue is arc-shaped, and the profile of the lower air guide plate is a straight line that slopes forward from top to bottom.

[0009] Further optionally, the main air duct is provided with a sweeping blade near the lower air outlet, and the sweeping blade can be controlled to sweep air along the length direction of the casing; The wall-mounted air conditioner indoor unit is equipped with a cooling mode, a heating mode, and a smart mode; the cooling mode includes a normal cooling mode and a rapid cooling mode; the smart mode includes a cooling mode and a heating mode. When the wall-mounted air conditioner indoor unit is in the normal cooling mode, the wall-mounted air conditioner indoor unit is in the upward air outlet mode; when the wall-mounted air conditioner indoor unit is in the rapid cooling mode, the wall-mounted air conditioner indoor unit is in the downward air outlet mode, and the sweeping blades are in the sweeping state. When the wall-mounted air conditioner indoor unit is in the heating mode, the wall-mounted air conditioner indoor unit is in the downward air outlet mode; When the wall-mounted air conditioner indoor unit is in the cooling mode of the intelligent mode, the wall-mounted air conditioner indoor unit is in the upward air outlet mode, and the upper air guide plate is in the sweeping state along the height direction of the casing; when the wall-mounted air conditioner indoor unit is in the heating mode of the intelligent mode, the wall-mounted air conditioner indoor unit is in the downward air outlet mode, and the sweeping blades are in the sweeping state.

[0010] Further optionally, the top wall of the casing is formed with an air inlet; the wall-mounted air conditioner indoor unit also includes an indoor heat exchanger and a filter self-cleaning device, the indoor heat exchanger is disposed in the main air duct and located below the air inlet, and the filter self-cleaning device includes a filter assembly and a dust removal assembly. The filter assembly includes a filter screen disposed between the lower part of the air inlet and the front of the indoor heat exchanger; the dust removal assembly includes a dust collection box and a brush, the dust collection box being disposed in front of the indoor heat exchanger for storing water and collecting dust; the top of the dust collection box is open, the brush is disposed inside the dust collection box, and the brush is in contact with the filter screen; The wall-mounted air conditioner indoor unit is equipped with a filter self-cleaning mode, which includes a cleaning program. When the wall-mounted air conditioner indoor unit runs the cleaning program, the filter moves back and forth between the area below the air inlet and the front of the indoor heat exchanger. When the filter moves into the dust collection box, the brush and water can clean the filter.

[0011] Further optionally, a vent is formed at the bottom of the dust collection box, and a movable baffle is provided at the vent, which can open or close the vent; The filter self-cleaning mode also includes a drying program; when the wall-mounted air conditioner indoor unit runs the cleaning program, the upper air outlet and the lower air outlet are both closed, the vent is open, and the air inlet, main air duct, secondary air duct, vent and dust collection box are connected in sequence to form a drying flow path. When the airflow flows through the drying flow path, it can dry the filter and the dust collection box.

[0012] Further optionally, a drain outlet is formed at the bottom of the dust collection box, and a drain valve is provided at the drain outlet for opening or closing the drain outlet; the drain valve is connected to the outside of the housing through a drain pipe; The filter self-cleaning mode also includes a drainage program, and the cleaning program, drainage program and drying program run sequentially in chronological order; when the wall-mounted air conditioner indoor unit runs the drainage program, the drain outlet is in the open state, and the water in the dust collection box is discharged through the drain outlet and the drain pipe.

[0013] Further optionally, the filter assembly also includes a filter frame, the filter frame forming an annular track, a portion of the annular track being located below the air inlet and another portion being located in front of the indoor heat exchanger; the annular track includes a track front end and a track rear end arranged opposite to each other, the track front end being disposed inside the dust collection box, and the track rear end being close to the rear wall of the housing; The filter self-cleaning device further includes a drive mechanism, which includes a driving gear, a driven gear, and a ring rack. One of the driving gear and the driven gear is rotatably disposed at the front end of the track, and the other is rotatably disposed at the rear end of the track. The ring rack is disposed within the ring track, with one end meshing with the driving gear and the other end meshing with the driven gear. The filter is disposed on the ring rack, and the filter can reciprocate along the ring track with the ring rack.

[0014] Alternatively, the drive gear is rotatably mounted inside the dust collection box via a rotating shaft, and the brush is mounted on the rotating shaft. Both the drive gear and the brush can rotate with the rotating shaft.

[0015] Compared with the prior art, the main advantages of this utility model are: (1) By setting up upper and lower air outlets, as well as the coordination of main and secondary air ducts, upper and lower air outlets are provided; different air supply directions can be selected according to cooling or heating needs, thereby supporting the effects of "cold air not blowing on people" and "hot air landing vertically"; In normal cooling mode, the upward air outlet sends cold air upwards, taking advantage of the sinking property of cold air to avoid the cold air blowing directly on the human body, thus achieving "near-field cooling without direct blowing"; in rapid cooling mode, the downward air outlet is used, and the air is swept left and right by the air sweeping blades to achieve a rapid cooling effect. In heating mode, the downward air outlet method can guide the hot air downward to the ground. By utilizing the principle that hot air rises, the hot air can be evenly distributed throughout the room, realizing "vertical floor-mounted heating and air supply". (2) By combining multiple air outlet modes, indoor air circulation can be promoted, temperature stratification can be reduced, and the temperature of the whole house can be made more uniform; switching between the top air outlet mode and the bottom air outlet mode can avoid local overheating or overcooling, thereby improving the overall comfort. (3) The airflow path was optimized, energy loss was reduced, and heat exchange efficiency was improved by selecting an appropriate air outlet method, thereby supporting the "energy-saving operation" effect. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 A schematic diagram of the structure of an embodiment of the wall-mounted air conditioner indoor unit provided by this utility model; Figure 2 A schematic diagram of the structure of an embodiment of the wall-mounted air conditioner indoor unit provided by this utility model when it is in the top air outlet mode; Figure 3 A schematic diagram of the structure of an embodiment of the wall-mounted air conditioner indoor unit provided by this utility model when the air outlet is in the downward airflow mode; Figure 4 A schematic diagram of an embodiment of the cleaning program for the indoor unit of a wall-mounted air conditioner provided by this utility model; Figure 5 A schematic diagram of the structure of an embodiment of the wall-mounted air conditioner indoor unit running the drying program provided by this utility model; In the picture: 1-Casing; 11-Front wall; 111-Upper air outlet; 12-Rear wall; 13-Top wall; 131-Air inlet; 14-Bottom wall; 141-Lower air outlet; 2-Air duct assembly; 21-Main air duct; 22-Secondary air duct; 23-Front shell; 231-Upper section of front shell; 232-Lower section of front shell; 24-Rear shell; 25-Upper volute tongue; 26-Lower volute tongue; 261-Front section of lower volute tongue; 262-Rear section of lower volute tongue; 31-Upper air guide plate; 311-Upper contact end; 312-Free end; 313-Upper rotating end; 32-Lower air guide plate; 321-Lower contact end; 322-Lower rotating end; 33-Air guide duct; 41-Indoor heat exchanger; 42-Fan blade; 5-Filter assembly; 51-Filter screen; 52-Filter frame; 521-Circular track; 5211-Track front end; 5212-Track rear end; 6-Dust removal component; 61-Dust collection box; 611-Ventilation opening; 62-Brush; 63-Baffle. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “said,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0021] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0023] In order to improve the poor air supply comfort of existing wall-mounted air conditioner indoor units, multiple air outlets are set in the indoor unit to control the cooling and heating air supply path. Most of these designs have complex air duct structures, which cannot achieve efficient and flexible cooling and heating air supply, resulting in limited improvement in air supply effect and poor user experience. This utility model creatively provides a wall-mounted air conditioner indoor unit, including a casing, an air duct assembly, an upper air guide plate, and a lower air guide plate. The front wall of the casing forms an upper air outlet, and the bottom wall forms a lower air outlet. The air duct assembly is disposed inside the casing and forms a main air duct and a secondary air duct. The upper air guide plate is disposed at the upper air outlet, and the lower air guide plate is disposed at the lower air outlet. When the wall-mounted air conditioner indoor unit is in upper air outlet mode, the upper air outlet is open, and the lower air outlet is closed. The main air duct, secondary air duct, and upper air guide plate... The air outlets are connected in sequence to form an upper air outlet path. The upper air guide plate can guide the airflow discharged from the upper air outlet path to the front of the casing. When the indoor unit of the wall-mounted air conditioner is in the lower air outlet mode, the upper air outlet is closed and the lower air outlet is open. An air guide channel is formed between the lower air guide plate and the air duct wall of the main air duct. The main air duct, the air guide channel and the lower air outlet are connected in sequence to form a lower air outlet path. Different air supply directions can be selected according to cooling or heating needs, so as to support the effect of cold air not blowing on people and hot air landing vertically.

[0024] like Figures 1 to 5 As shown, this embodiment provides a wall-mounted air conditioner indoor unit, including: The housing 1 has an upper air outlet 111 formed on its front wall 11 and a lower air outlet 141 formed on its bottom wall 14; the housing 1 has an air inlet 131 formed on its top wall 13 and a rear wall 12 for mounting the indoor unit of the wall-mounted air conditioner on the wall; specifically, the front wall 11 and rear wall 12 of the housing 1 are arranged opposite each other front to back, and the top wall 13 and bottom wall 14 of the housing 1 are arranged opposite each other vertically. The air duct assembly 2 is disposed inside the housing 1. The air duct assembly 2 forms a main air duct 21 and a secondary air duct 22. The main air duct 21 is provided with an indoor heat exchanger 41 and a fan blade 42. The indoor heat exchanger 41 is arranged around the upper end of the fan blade 42 and is located below the air inlet 131. Preferably, the fan blade 42 is a cross-flow fan blade. The upper air guide plate 31 and the lower air guide plate 32 are provided. The upper air guide plate 31 is movably disposed at the upper air outlet 111 and is used to open and close the upper air outlet 111 and / or adjust the air outlet direction of the upper air outlet 111. The lower air guide plate 32 is movably disposed at the lower air outlet 141 and is used to open and close the lower air outlet 141 and / or adjust the air outlet direction of the lower air outlet 141. Wall-mounted air conditioner indoor units have both top air outlet and bottom air outlet configurations. When the wall-mounted air conditioner indoor unit is in top-discharge mode, the top air outlet 111 is open and the bottom air outlet 141 is closed. The main air duct 21, the secondary air duct 22, and the top air outlet 111 are connected in sequence to form the top air outlet flow path. The upper air guide plate 31 can guide the airflow discharged from the top air outlet flow path to the front of the casing 1. At this time, the wall-mounted air conditioner indoor unit can run in cooling mode. Under the action of the fan blades 42, indoor air enters the main air duct 21 through the air inlet 131. When the air flows through the indoor heat exchanger 41, it exchanges heat with the indoor heat exchanger 41. The air after heat exchange is discharged through the top air outlet flow path and the top air outlet 111. The cold air is discharged to the front of the casing 1, which will not blow directly on the human body and improve comfort. At the same time, it avoids the cold air from flowing back through the air inlet 131, which is conducive to the large circulation of indoor air. When the wall-mounted air conditioner indoor unit is in the downward air outlet mode, the upper air outlet 111 is closed and the lower air outlet 141 is open. An air guide duct 33 is formed between the lower air guide plate 32 and the duct wall of the main air duct 21. The main air duct 21, the air guide duct 33, and the lower air outlet 141 are connected in sequence to form a downward air outlet flow path. At this time, the wall-mounted air conditioner indoor unit can run in heating mode. Under the action of the fan blades 42, indoor air enters the main air duct 21 through the air inlet 131. When the air flows through the indoor heat exchanger 41, it exchanges heat with the indoor heat exchanger 41. The air after heat exchange is discharged through the downward air outlet flow path and the lower air outlet 141. The hot air is discharged through the lower air outlet 141, realizing the hot air landing.

[0025] The following describes how the air duct assembly 2 forms the main air duct 21 and the secondary air duct 22, as well as the arrangement of the upper air guide plate 31 and the lower air guide plate 32. The air duct assembly 2 includes a rear shell 24, a lower volute tongue 26 and a front shell 23 arranged sequentially from back to front. The main air duct 21 is formed between the rear shell 24 and the lower volute tongue 26. The front shell 23 is connected to the lower volute tongue 26 and the secondary air duct 22 is formed between the front shell 23 and the front wall 11 of the housing 1. The front shell 23 has an upper volute tongue 25 at the position corresponding to the upper air outlet 111. The upper air guide plate 31 includes an upper abutting end 311 and a free end 312 and an upper rotating end 313 arranged opposite to each other in its length direction. The upper rotating end 313 is located between the upper abutting end 311 and the free end 312, and the upper rotating end 313 is rotatably disposed at the upper air outlet 111. The lower air guide plate 32 includes a lower abutting end 321 and a lower rotating end 322 arranged opposite to each other in its length direction. The lower rotating end 322 is rotatably disposed at the lower air outlet 141. When the indoor unit of the wall-mounted air conditioner is in the top air outlet mode, the upper abutting end 311 abuts against the upper volute tongue 25, and the free end 312 is in front of the casing 1. When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the lower abutment end 321 abuts against the lower volute tongue 26.

[0026] The following explains how the upper and lower air outlet profiles are formed. The lower volute tongue 26 includes a front section 261 and a rear section 262 that are arranged opposite to each other and connected. The front shell 23 includes an upper section 231 and a lower section 232 that are arranged opposite to each other. The lower volute tongue front section 261, the lower section 232 and the upper section 231 are arranged and connected from back to front. The upper volute tongue 25 is located at the connection between the upper section 231 and the lower section 232. When the indoor unit of the wall-mounted air conditioner is in the top air outlet mode, the lower section 232 of the front casing, the upper volute 25 and the upper air guide plate 31 are arranged in sequence to form a continuous top air outlet profile; reducing the turbulence intensity generated by the air at the upper volute 25 and reducing the loss of air volume. When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the lower abutment end 321 abuts against the connection between the front section 261 and the rear section 262 of the lower volute tongue. The rear section 262 of the lower volute tongue and the lower air guide plate 32 are arranged in sequence to form a continuous downward air outlet profile.

[0027] Furthermore, the profile of the lower section 232 of the front shell is a straight line that slopes forward from bottom to top, the profile of the upper volute tongue 25 is an arc shape, and the profile of the upper air guide plate 31 is a straight line that extends in the horizontal direction. The profile of the lower volute tongue 261 is arc-shaped, and the profile of the lower air guide plate 32 is a straight line that slopes forward from top to bottom.

[0028] The following explains the compatibility of various operating modes and air outlet methods of the indoor unit of the wall-mounted air conditioner. The main air duct 21 is equipped with a sweeping blade near the lower air outlet 141. The sweeping blade can be controlled to sweep air along the length of the casing 1. The indoor unit of the wall-mounted air conditioner has cooling mode, heating mode and smart mode; the cooling mode includes normal cooling mode and fast cooling mode; the smart mode includes cooling mode and heating mode. When the indoor unit of the wall-mounted air conditioner is in the normal cooling mode, the indoor unit is in the top air outlet mode, and the cold air is discharged through the top air outlet 111. When the wall-mounted air conditioner indoor unit is in rapid cooling mode, it is in a downward air outlet mode with the air sweeping blades in a sweeping state; the fan speed is at its highest setting (42), and cold air is discharged from the downward air outlet 141 until the indoor air temperature reaches the preset temperature, achieving a rapid cooling effect; when the wall-mounted air conditioner indoor unit is in normal cooling mode, cold air is discharged from the upward air outlet 111 to avoid direct airflow onto people; specifically, the indoor air temperature is detected by an infrared temperature sensor, and the indoor air temperature is the average temperature. When the indoor unit of the wall-mounted air conditioner is in heating mode, the indoor unit is in the downward air outlet mode, and the hot air is discharged through the downward air outlet 141. When the wall-mounted air conditioner indoor unit is in the cooling mode of intelligent mode, it is in the upward air outlet mode, and the upper air guide plate 31 is in the sweeping state along the height direction of the casing 1. When the wall-mounted air conditioner indoor unit is in the heating mode of intelligent mode, it is in the downward air outlet mode, and the sweeping blades are in the sweeping state. When the wall-mounted air conditioner indoor unit is in intelligent mode, it automatically controls the upper air guide plate 31, the lower air guide plate 32 and the sweeping blades by judging the temperature difference in the vertical direction of the room, and then outputs air in the corresponding air outlet mode to solve the problem of uneven indoor air temperature distribution and meet various air outlet needs. Specifically, in intelligent mode, the indoor temperature is obtained vertically via infrared temperature sensors. Four infrared temperature sensors are positioned above, below, to the left, and to the right of the wall-mounted air conditioner indoor unit. The sensors obtain the temperatures of the upper and lower-middle sections of the room and calculate the difference. In cooling mode, if the indoor air temperature difference is greater than the set temperature difference ΔT, the upper air guide vane 31 is controlled to sweep up and down. When the angle between the upper air guide vane 31 and the front wall 11 of the casing 1 is small, cold air can reach the lower-middle section of the room; when the upper air guide vane 31 is perpendicular to the front wall 11 of the casing 1, cold air is blown out straight. The upper air guide vane 31 sweeps up and down until the indoor air temperature difference is less than the set temperature difference. In heating mode, the air guide vanes sweep left and right to ensure the range of warm air radiation until the indoor temperature difference is less than the set temperature difference. If the indoor temperature difference is less than the set temperature difference, the wall-mounted air conditioner indoor unit can operate in both cooling and heating modes. The value of ΔT can range from 3℃ to 6℃.

[0029] The following describes the cleaning procedure in the filter self-cleaning mode of the wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit also includes a filter self-cleaning device, which includes a filter assembly 5 and a dust removal assembly 6. The filter assembly 5 includes a filter screen 51, which is disposed between the air inlet 131 and the front of the indoor heat exchanger 41; the dust removal assembly 6 includes a dust collection box 61 and a brush 62, which is disposed in front of the indoor heat exchanger 41 and is used to store water and collect dust; the top of the dust collection box 61 is open, and the brush 62 is disposed inside the dust collection box 61, and the brush 62 is in contact with the filter screen 51; The wall-mounted air conditioner indoor unit is equipped with a filter self-cleaning mode, which includes a cleaning program. When the wall-mounted air conditioner indoor unit runs the cleaning program, the filter 51 moves back and forth between the bottom of the air inlet 131 and the front of the indoor heat exchanger 41. When the filter 51 moves into the dust collection box 61, the brush 62 and water can clean the filter 51. When the filter 51 moves to the bottom of the air inlet 131, it can filter the air entering the main air duct 21 through the air inlet 131. Specifically, when the indoor unit of the wall-mounted air conditioner is running the cleaning program, the upper air guide plate 31 closes the upper air outlet 111, the lower air guide plate 32 closes the lower air outlet 141, the fan blades 42 stop rotating, water is delivered into the dust collection box 61, and the brush 62 can be immersed in the water in the dust collection box 61; the filter screen 51 moves back and forth between the lower part of the air inlet 131 and the front of the indoor heat exchanger 41. When the filter screen 51 moves into the dust collection box 61, the brush 62, carrying water, can clean the filter screen 51.

[0030] The following describes the drying process in the self-cleaning mode of the filter of the indoor unit of the wall-mounted air conditioner. A vent 611 is formed at the bottom of the dust collection box 61, and a movable baffle 63 is provided at the vent 611. The baffle 63 can open or close the vent 611. The filter self-cleaning mode also includes a drying program; when the indoor unit of the wall-mounted air conditioner runs the cleaning program, the upper air outlet 111 and the lower air outlet 141 are both closed, the vent 611 is open, and the air inlet 131, the main air duct 21, the secondary air duct 22, the vent 611 and the dust collection box 61 are connected in sequence to form a drying flow path. When the airflow flows through the drying flow path, it can dry the filter 51 and the dust collection box 61 to avoid the growth of bacteria; Specifically, when the indoor unit of the wall-mounted air conditioner is running the cleaning program, the upper air guide plate 31 closes the upper air outlet 111, the lower air guide plate 32 closes the lower air outlet 141, the fan blades 42 stop rotating, and the water in the dust collection box 61 is discharged; when the indoor unit of the wall-mounted air conditioner is running the heating mode, hot air enters the dust collection box 61 through the drying flow path to dry the filter 51 and the dust collection box 61.

[0031] The following describes the drainage procedure in the self-cleaning mode of the filter during the operation of the indoor unit of the wall-mounted air conditioner. A drain outlet is also formed at the bottom of the dust collection box 61, and a drain valve is provided at the drain outlet for opening or closing the drain outlet; the drain valve and the outside of the casing 1 are connected through a drain pipe. The filter self-cleaning mode also includes a drainage program. The cleaning program, drainage program and drying program run in sequence according to time. When the indoor unit of the wall-mounted air conditioner is running the drainage program, the drain outlet is in the open state, and the water in the dust collection box 61 is discharged through the drain outlet and the drain pipe.

[0032] The following describes the drive mechanism for the filter frame 52 and the filter screen 51. The filter assembly 5 also includes a filter frame 52, which forms an annular track 521. A portion of the annular track 521 is located below the air inlet 131, and another portion is located in front of the indoor heat exchanger 41. The annular track 521 includes a track front end 5211 and a track rear end 5212 arranged opposite to each other. The track front end 5211 is located inside the dust collection box 61, and the track rear end 5212 is close to the rear wall 12 of the housing 1. The filter self-cleaning device also includes a drive mechanism, which includes a drive gear, a driven gear, and a ring rack. One of the drive gear and the driven gear is rotatably disposed at the front end 5211 of the track, and the other is rotatably disposed at the rear end 5212 of the track. The ring rack is disposed in the ring track 521, and one end of the ring rack meshes with the drive gear, while the other end meshes with the driven gear. The filter 51 is disposed on the ring rack, and the filter 51 can reciprocate along the ring track 521 with the ring rack.

[0033] Furthermore, the drive gear is rotatably mounted inside the dust collection box 61 via a rotating shaft, and a brush 62 is mounted on the rotating shaft. Both the drive gear and the brush 62 can rotate with the rotating shaft.

[0034] The filter 51 is self-cleaned by a filter self-cleaning device, eliminating the need to manually remove the filter 51. Air is allowed to enter the dust collection box 61 along the drying flow path to dry the filter 51, thus improving the cleaning efficiency of the filter and benefiting human health.

[0035] In summary, by controlling the upper air guide plate 31 and the lower air guide plate 32 to open or close the corresponding air outlets, the switching between the upper and lower air outlet paths can be achieved without changing the rotation direction of the fan blades 42. The control method and structure are simple; the comfort of the air outlet is improved, and various air outlet needs can be met; when the wall-mounted air conditioner indoor unit is discharging air in the above air outlet methods, the upper air guide plate 31 can prevent cold air from flowing back through the air inlet 131, reducing the attenuation of the air volume.

[0036] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that, include: The housing (1) has an upper air outlet (111) formed on its front wall (11) and a lower air outlet (141) formed on its bottom wall (14). A duct assembly (2) is disposed inside the housing (1), the duct assembly (2) forming a main duct (21) and a secondary duct (22); An upper air guide plate (31) and a lower air guide plate (32) are provided. The upper air guide plate (31) is movably disposed at the upper air outlet (111) and is used to open and close the upper air outlet (111) and / or adjust the air outlet direction of the upper air outlet (111). The lower air guide plate (32) is movably disposed at the lower air outlet (141) and is used to open and close the lower air outlet (141) and / or adjust the air outlet direction of the lower air outlet (141). The wall-mounted air conditioner indoor unit has both top air outlet and bottom air outlet configurations. When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, the upward air outlet (111) is in the open state, the downward air outlet (141) is in the closed state, the main air duct (21), the secondary air duct (22) and the upward air outlet (111) are connected in sequence to form an upward air outlet flow path, and the upper air guide plate (31) can guide the airflow discharged from the upward air outlet flow path to the front of the casing (1); When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the upper air outlet (111) is closed and the lower air outlet (141) is open. An air guide duct (33) is formed between the lower air guide plate (32) and the duct wall of the main air duct (21). The main air duct (21), the air guide duct (33) and the lower air outlet (141) are connected in sequence to form a downward air outlet flow path.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The air duct assembly (2) includes a rear shell (24), a lower volute (26), and a front shell (23) arranged sequentially from back to front; a main air duct (21) is formed between the rear shell (24) and the lower volute (26), the front shell (23) and the lower volute (26) are connected, and a secondary air duct (22) is formed between the front shell (23) and the front wall (11) of the housing (1); the front shell (23) is provided with an upper volute (25) at a position corresponding to the upper air outlet (111); The upper air guide plate (31) includes an upper abutment end (311) and a free end (312) and an upper rotating end (313) arranged opposite to each other in its length direction. The upper rotating end (313) is located between the upper abutment end (311) and the free end (312), and the upper rotating end (313) is rotatably disposed at the upper air outlet (111). The lower air guide plate (32) includes a lower abutment end (321) and a lower rotating end (322) arranged opposite to each other in its length direction. The lower rotating end (322) is rotatably disposed at the lower air outlet (141). When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, the upper abutting end (311) abuts against the upper volute tongue (25), and the free end (312) is in front of the casing (1). When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the lower abutment end (321) abuts against the lower volute tongue (26).

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The lower cochlear tongue (26) includes a front section (261) and a rear section (262) of the lower cochlear tongue that are arranged opposite to each other and connected. The front shell (23) includes an upper section (231) and a lower section (232) of the front shell that are arranged opposite to each other. The front section (261), the lower section (232) and the upper section (231) of the lower cochlear tongue are arranged and connected sequentially from back to front. The upper cochlear tongue (25) is located at the connection between the upper section (231) and the lower section (232) of the front shell. When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, the lower section of the front shell (232), the upper volute (25) and the upper air guide plate (31) are arranged in sequence and form a continuous upward air outlet profile. When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, the lower abutment end (321) abuts against the connection between the front section (261) and the rear section (262) of the lower volute tongue. The rear section (262) of the lower volute tongue and the lower air guide plate (32) are arranged in sequence to form a continuous downward air outlet profile.

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The profile of the lower section (232) of the front shell is a straight line that slopes forward from bottom to top, the profile of the upper volute (25) is an arc, and the profile of the upper air guide plate (31) is a straight line that extends in the horizontal direction. The profile of the lower volute tongue front section (261) is arc-shaped, and the profile of the lower air guide plate (32) is a straight line that slopes forward from top to bottom.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The main air duct (21) is provided with a sweeping blade near the lower air outlet (141), and the sweeping blade can be controlled to sweep air along the length direction of the casing (1); The wall-mounted air conditioner indoor unit is equipped with a cooling mode, a heating mode, and a smart mode; the cooling mode includes a normal cooling mode and a rapid cooling mode; the smart mode includes a cooling mode and a heating mode. When the wall-mounted air conditioner indoor unit is in the normal cooling mode, the wall-mounted air conditioner indoor unit is in the upward air outlet mode; when the wall-mounted air conditioner indoor unit is in the rapid cooling mode, the wall-mounted air conditioner indoor unit is in the downward air outlet mode, and the sweeping blades are in the sweeping state. When the wall-mounted air conditioner indoor unit is in the heating mode, the wall-mounted air conditioner indoor unit is in the downward air outlet mode; When the wall-mounted air conditioner indoor unit is in the cooling mode of the intelligent mode, the wall-mounted air conditioner indoor unit is in the upward air outlet mode, and the upper air guide plate (31) is in the sweeping state along the height direction of the casing (1); when the wall-mounted air conditioner indoor unit is in the heating mode of the intelligent mode, the wall-mounted air conditioner indoor unit is in the downward air outlet mode, and the sweeping blades are in the sweeping state.

6. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The top wall (13) of the casing (1) forms an air inlet (131); the wall-mounted air conditioner indoor unit also includes an indoor heat exchanger (41) and a filter self-cleaning device. The indoor heat exchanger (41) is located in the main air duct (21) and below the air inlet (131). The filter self-cleaning device includes a filter assembly (5) and a dust removal assembly (6). The filter assembly (5) includes a filter screen (51) disposed between the air inlet (131) and the front of the indoor heat exchanger (41); the dust removal assembly (6) includes a dust collection box (61) and a brush (62), the dust collection box (61) being disposed in front of the indoor heat exchanger (41) for storing water and collecting dust; the top of the dust collection box (61) is open, and the brush (62) is disposed inside the dust collection box (61), with the brush (62) in contact with the filter screen (51); The wall-mounted air conditioner indoor unit is equipped with a filter (51) self-cleaning mode, which includes a cleaning program. When the wall-mounted air conditioner indoor unit runs the cleaning program, the filter (51) moves back and forth between the bottom of the air inlet (131) and the front of the indoor heat exchanger (41). When the filter (51) moves into the dust collection box (61), the brush (62) and water can clean the filter (51).

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that, The bottom of the dust collection box (61) has a vent (611), and a movable baffle (63) is provided at the vent (611). The baffle (63) can open or close the vent (611). The self-cleaning mode of the filter (51) also includes a drying program; when the indoor unit of the wall-mounted air conditioner runs the cleaning program, the upper air outlet (111) and the lower air outlet (141) are both closed, the vent (611) is open, and the air inlet (131), the main air duct (21), the secondary air duct (22), the vent (611) and the dust collection box (61) are connected in sequence to form a drying flow path. When the airflow passes through the drying flow path, it can dry the filter (51) and the dust collection box (61).

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that, The bottom of the dust collection box (61) is also formed with a drain outlet, and a drain valve is provided at the drain outlet for opening or closing the drain outlet; the drain valve and the outside of the housing (1) are connected through a drain pipe; The filter (51) self-cleaning mode also includes a drainage program. The cleaning program, drainage program and drying program are run in sequence according to time. When the wall-mounted air conditioner indoor unit runs the drainage program, the drain outlet is in the open state, and the water in the dust collection box (61) is discharged through the drain outlet and the drain pipe.

9. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that, The filter assembly (5) also includes a filter frame (52), which forms an annular track (521). A portion of the annular track (521) is located below the air inlet (131), and another portion is located in front of the indoor heat exchanger (41). The annular track (521) includes a track front end (5211) and a track rear end (5212) arranged opposite to each other. The track front end (5211) is located inside the dust collection box (61), and the track rear end (5212) is close to the rear wall (12) of the housing (1). The filter self-cleaning device also includes a drive mechanism, which includes a drive gear, a driven gear, and a ring rack. One of the driving gear and the driven gear is rotatably disposed at the front end (5211) of the track, and the other is rotatably disposed at the rear end (5212) of the track; the annular rack is disposed in the annular track (521), and one end of the annular rack meshes with the driving gear, and the other end meshes with the driven gear; The filter screen (51) is disposed on the annular rack, and the filter screen (51) can reciprocate along the annular track (521) with the annular rack.

10. The wall-mounted air conditioner indoor unit according to claim 9, characterized in that, The drive gear is rotatably mounted in the dust collection box (61) via a rotating shaft, and the brush (62) is mounted on the rotating shaft. Both the drive gear and the brush (62) can rotate with the rotating shaft.

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