A wall-mounted air conditioner indoor unit

Abstract

The utility model provides a wall -hanging type air conditioner indoor unit, including the casing, the casing forms the upper air port, front air port and lower air port, the inside of casing is equipped with main air duct and branch air duct, and the branch air duct is located the front side of main air duct and is connected with the upper air port, when the wall -hanging type air conditioner indoor unit is in lower air -out mode, the lower end of main air duct and lower air port are connected with the lower air duct for the air in main air duct is guided to lower air port and is discharged through lower air port, when the wall -hanging type air conditioner indoor unit is in front air -out mode, the lower end of main air duct and front air port are connected with the front air duct for the air in main air duct is guided to front air port and is discharged through front air port, when the wall -hanging type air conditioner indoor unit is in upper air -out mode, the lower end of main air duct and the lower end of branch air duct are connected with the upper air duct for the air in main air duct is guided to branch air duct, and then is discharged through upper air port, can choose different air supply direction according to the refrigeration or heating demand, thereby realizes the effect that cold air does not blow people and hot air vertical landing.

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, including a casing. The casing has an upper air vent, a front air vent, and a lower air vent arranged sequentially from top to bottom. The upper air vent, the front air vent, and the lower air vent are all connected to the indoor environment. The casing has a main air duct and a secondary air duct inside. The secondary air duct is located in front of the main air duct and is connected to the upper air vent. The wall-mounted air conditioner indoor unit has a bottom air outlet, a front air outlet, and a top air outlet. When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, a downward air guide duct is formed between the lower end of the main air duct and the downward air outlet. The downward air guide duct connects the main air duct and the downward air outlet and is used to guide the air in the main air duct to the downward air outlet and discharge it through the downward air outlet. When the indoor unit of the wall-mounted air conditioner is in the front air outlet mode, a front air guide duct is formed between the lower end of the main air duct and the front air outlet. The front air guide duct connects the main air duct and the front air outlet and is used to guide the air in the main air duct to the front air outlet and discharge it through the front air outlet. When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, an upper air guide duct is formed between the lower end of the main air duct and the lower end of the secondary air duct. The upper air guide duct connects the main air duct and the secondary air duct and is used to guide the air in the main air duct to the secondary air duct, and then discharge it through the upper air outlet.

[0006] Further optionally, it also includes an air duct assembly disposed inside the housing; the air duct assembly includes a rear shell, a volute, and a front shell arranged sequentially from back to front; the main air duct is formed between a portion of the rear shell and the volute, and the secondary air duct is formed between the front shell and the front wall of the housing; A lower air guide plate is movably provided at the downwind outlet, and a front air guide plate is movably provided at the front air outlet; by controlling the movement of the lower air guide plate and the front air guide plate, the rear shell, the volute tongue, the lower air guide plate and the front air guide plate can cooperate to form the lower air guide duct, the front air guide duct and the upper air guide duct.

[0007] Further optionally, by opening the lower air inlet with the lower air guide plate and abutting the edge of the lower air guide plate and the volute tongue, the lower air guide plate and the lower end of the rear shell can be formed. By closing the lower air inlet and opening the front air inlet with the lower air guide plate and the front air guide plate, and with the edge of the front air guide plate and the volute abutting against each other, the front air guide duct can be formed between the lower air guide plate and the front air guide plate. By closing the lower air vent with the lower air guide plate and closing the front air vent with the front air guide plate, the lower air guide plate, the front air guide plate, and the volute can together form the upper air guide duct.

[0008] Optionally, the lower air guide plate is rotatably disposed at the lower air outlet. The lower air guide plate includes a first edge, a second edge, and a rotating part disposed opposite to each other in the width direction of the lower air guide plate. The rotating part is located between the first edge and the second edge of the lower air guide plate. The rotating part and the housing are rotatably connected by a lower rotating shaft, which is located above the lower air outlet. The front air vent includes an upper edge and a lower edge of the front air vent that are arranged opposite to each other in the vertical direction; the front air guide plate includes a first edge and a second edge of the front air guide plate that are arranged opposite to each other in the width direction; the first edge of the front air guide plate is located close to the upper edge of the front air vent, and the first edge of the front air guide plate and the housing are rotatably connected by a front rotating shaft.

[0009] Further optionally, an upper air guide plate is movably provided at the upper air outlet, the upper air guide plate being used to open or close the upper air outlet, or to adjust the air outlet direction of the upper air outlet; The upper air vent includes an upper edge and a lower edge of the upper air vent that are arranged opposite each other in the vertical direction; the upper air guide plate includes a first upper air guide plate edge and a second upper air guide plate edge that are arranged opposite each other in the width direction of the upper air guide plate; the first upper air guide plate edge is arranged close to the upper edge of the upper air vent, and the first upper air guide plate edge and the housing are rotatably connected by an upper rotating shaft.

[0010] Optionally, the upper air guide plate is rotatably disposed at the upper air outlet. When the upper air guide plate opens the upper air outlet, the air outlet direction can be adjusted by adjusting the tilt angle of the upper air guide plate relative to the horizontal direction.

[0011] Further optionally, the lower air guide plate includes a first lower air guide plate and a second lower air guide plate, the first lower air guide plate and the second lower air guide plate are arranged opposite to each other and rotatably disposed at the lower air outlet; By rotating the first lower air guide plate inward toward the housing and abutting against the volute tongue, the lower air guide channel can be formed between the first lower air guide plate and the lower end of the rear housing; by rotating the second lower air guide plate outward toward the housing and swinging the second lower air guide plate back and forth, the air outlet direction of the lower air outlet can be adjusted, or back and forth air sweeping can be achieved.

[0012] Further optionally, the front air guide plate includes a first front air guide plate and a second front air guide plate, the first front air guide plate and the second front air guide plate are arranged opposite each other and rotatably disposed at the front air inlet; By rotating the first front air guide plate toward the interior of the housing and abutting against the volute tongue, the front air guide duct can be formed between the first front air guide plate and the lower air guide plate; by rotating the second front air guide plate toward the exterior of the housing and swinging the second front air guide plate up and down, the air outlet direction of the front air outlet can be adjusted, or up and down sweeping can be achieved.

[0013] Further optionally, the upper air vent is formed on the top front side of the housing or the upper end of the front wall of the housing, the front air vent is formed in the middle of the front wall of the housing or the lower end of the front wall of the housing, and the lower air vent is formed on the bottom wall of the housing.

[0014] Further optionally, the housing includes a top wall, a front wall, and a bottom wall, the front wall including a main front wall section, an upper front wall section, and a lower front wall section; the upper front wall section and the main front wall section are telescopically connected vertically, and the lower front wall section and the main front wall section are telescopically connected vertically. The upper air vent is formed between the upper end of the upper section of the front wall and the front end of the top wall. The flow area of ​​the upper air vent can be adjusted by controlling the upper section of the front wall to extend and retract relative to the main section of the front wall. The front air vent is formed between the lower end of the lower section of the front wall and the front end of the bottom wall. The flow area of ​​the front air vent can be adjusted by controlling the vertical extension and retraction of the lower section of the front wall relative to the main section of the front wall.

[0015] Compared with the prior art, the main advantages of this utility model are: (1) By setting up the top air outlet, front air outlet and bottom air outlet, as well as the main air duct and the auxiliary air duct, it provides the bottom air outlet, front air outlet and top air outlet; different air supply directions can be selected according to the cooling or heating needs, so as to achieve the effect of "cold air does not blow on people" and "hot air falls vertically to the ground"; In cooling mode, the upward air outlet sends cold air upwards, taking advantage of the sinking property of cold air to prevent it from blowing directly on people, thus achieving "cooling without direct blowing"; in heating mode, the downward air outlet directs hot air downwards to the ground, taking advantage of the rising property of hot air to distribute it evenly in the room, thus achieving "heating with vertical floor-level air supply"; the front air outlet can be used to quickly adjust the room temperature, achieving "rapid cooling and heating" effects. (2) By combining multiple air outlet modes, indoor air circulation can be promoted, temperature stratification can be reduced, and indoor temperature distribution can be more uniform; switching between upper and lower air outlet modes can avoid local overheating or overcooling, thereby improving 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 achieving the effect of "energy saving". 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 proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is 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 an embodiment of the wall-mounted air conditioner indoor unit in cooling mode with downward air outlet, provided by this utility model; Figure 3 A schematic diagram of the structure of an embodiment of the wall-mounted air conditioner indoor unit with front air outlet mode in cooling mode provided by this utility model; Figure 4A schematic diagram of an embodiment of the wall-mounted air conditioner indoor unit in cooling mode with top air outlet, provided by this utility model; Figure 5a and Figure 5b A schematic diagram of the structure of an embodiment of the wall-mounted air conditioner indoor unit with a down-discharge airflow mode in heating mode provided by this utility model; Figure 6 A schematic diagram of the structure of an embodiment of the wall-mounted air conditioner indoor unit with front air outlet mode in heating mode provided by this utility model; In the picture: 1-Casing; 11-Front wall; 111-Upper air vent; 1111-Upper edge of upper air vent; 1112-Lower edge of upper air vent; 112-Front air vent; 12-Rear wall; 13-Top wall; 131-Air inlet; 14-Bottom wall; 141-Lower air vent; 2-Air duct assembly; 21-Main air duct; 22-Secondary air duct; 23-Rear shell; 24-Vortex tongue; 25-Front shell; 31-Lower air guide plate; 311-First edge of lower air guide plate; 312-Second edge of lower air guide plate; 313-Lower pivot; 32-Front air guide plate; 321-First edge of front air guide plate; 322-Second edge of front air guide plate; 323-Front pivot; 33-Upper air guide plate; 331-First edge of upper air guide plate; 332-Second edge of upper air guide plate; 333-Upper pivot; 41 - Lower air duct; 42 - Front air duct; 43 - Upper air duct; 51-Indoor heat exchanger; 52-Fan blade. 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 with an upper air outlet, a front air outlet, and a lower air outlet. The casing contains a main air duct and a secondary air duct, with the secondary air duct located in front of the main air duct and connected to the upper air outlet. When the wall-mounted air conditioner indoor unit is in downward air outlet mode, a lower guide duct connects the lower end of the main air duct and the lower air outlet to guide air from the main air duct to the lower air outlet and discharge it. When the wall-mounted air conditioner indoor unit is in front air outlet mode, a front guide duct connects the lower end of the main air duct and the front air outlet to guide air from the main air duct to the front air outlet and discharge it. When the wall-mounted air conditioner indoor unit is in upward air outlet mode, an upper guide duct connects the lower end of the main air duct and the lower end of the secondary air duct to guide air from the main air duct to the secondary air duct and discharge it through the upper air outlet. Different airflow directions can be selected according to cooling or heating needs, thus achieving the effect of cool air not blowing on people and hot air landing vertically.

[0024] Example 1 like Figures 1 to 6As shown, this embodiment provides a wall-mounted air conditioner indoor unit, including a casing 1. The casing 1 has an upper air inlet 111, a front air inlet 112, and a lower air inlet 141 arranged sequentially from top to bottom. The upper air inlet 111, the front air inlet 112, and the lower air inlet 141 are all connected to the indoor environment. An air inlet 131 is formed on the top of the casing 1. The casing 1 has a main air duct 21 and a secondary air duct 22 inside. An indoor heat exchanger 51 and a fan blade 52 are arranged in the main air duct 21. The indoor heat exchanger 51 is arranged close to the air inlet 131. The secondary air duct 22 is located in front of the main air duct 21 and is connected to the upper air inlet 111. When the fan blade 52 rotates, indoor air can enter the main air duct 21 through the air inlet 131. When the air flows through the indoor heat exchanger 51, it exchanges heat with the indoor heat exchanger 51. Wall-mounted air conditioner indoor units have bottom air outlet, front air outlet, and top air outlet options; When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, a lower air guide duct 41 is formed between the lower end of the main air duct 21 and the lower air outlet 141. The lower air guide duct 41 connects the main air duct 21 and the lower air outlet 141, and is used to guide the air in the main air duct 21 to the lower air outlet 141 and discharge it through the lower air outlet 141; that is, when the fan blade 52 rotates, the air in the main air duct 21 is discharged into the room through the lower air guide duct 41 and the lower air outlet 141. When the indoor unit of the wall-mounted air conditioner is in front air outlet mode, a front air guide duct 42 is formed between the lower end of the main air duct 21 and the front air outlet 112. The front air guide duct 42 connects the main air duct 21 and the front air outlet 112, and is used to guide the air in the main air duct 21 to the front air outlet 112 and exhaust it through the front air outlet 112; that is, when the fan blade 52 rotates, the air in the main air duct 21 is exhausted into the room through the front air guide duct 42 and the front air outlet 112. When the indoor unit of the wall-mounted air conditioner is in the top air outlet mode, an upper air guide duct 43 is formed between the lower end of the main air duct 21 and the lower end of the secondary air duct 22. The upper air guide duct 43 connects the main air duct 21 and the secondary air duct 22 and is used to guide the air in the main air duct 21 to the secondary air duct 22, and then discharge it through the upper air outlet 111. That is, when the fan blade 52 rotates, the air in the main air duct 21 enters the secondary air duct 22 through the upper air guide duct 43 and is then discharged through the upper air outlet 111. Thus, when the indoor unit of the wall-mounted air conditioner is in cooling mode, it can be in an upward air outlet mode. Under the action of the fan blades 52, the cold air in the main air duct 21 flows sequentially through the upper air guide duct 43, the secondary air duct 22 and the upper air outlet 111, and is then discharged into the room, achieving the effect of cold air not blowing on people. When the indoor unit of the wall-mounted air conditioner is in heating mode, it can be in a downward air outlet mode. Under the action of the fan blades, the hot air in the main air duct 21 flows sequentially through the lower air guide duct 41 and the lower air outlet 141, and is then discharged into the room, achieving floor heating-like air supply, with a more uniform indoor temperature distribution and warm but not dry air. Meanwhile, when the indoor unit of the wall-mounted air conditioner is running in cooling mode, it can also be in front air outlet mode. Under the action of the fan blade 52, the cold air in the main air duct 21 flows through the front air guide duct 42 and the front air outlet 112 in sequence, and then is discharged into the room, achieving a rapid cooling effect while preventing direct airflow at close range. When the indoor unit of the wall-mounted air conditioner is running in cooling mode, it can also be in bottom air outlet mode. Under the action of the fan blade 52, the cold air in the main air duct 21 flows through the bottom air guide duct 41 and the bottom air outlet 141 in sequence, and then is discharged into the room, achieving a direct airflow effect. When the indoor unit of the wall-mounted air conditioner is in heating mode, it can also be in front air outlet mode. Under the action of the fan blades 52, the hot air in the main air duct 21 flows through the front air guide duct 42 and the front air outlet 112 in sequence, and then is discharged into the room to achieve a rapid heating effect. When the indoor unit of the wall-mounted air conditioner is in heating mode, it can also be in top air outlet mode. Under the action of the fan blades, the hot air in the main air duct 21 flows through the upper air guide duct 43, the secondary air duct 22 and the upper air outlet 111 in sequence, and then is discharged into the room to prevent hot air from blowing directly into the room. Based on the operating mode of the indoor unit of the wall-mounted air conditioner, the air outlet mode can be flexibly selected to meet various air outlet needs. In the cooling mode, the cold air does not blow on people, and in the heating mode, the hot air falls vertically to the ground. It can quickly cool or heat, provide comfortable air supply and energy-saving operation, and ensure uniform indoor air temperature distribution, solving the problems of cold air blowing on people, hot air not falling to the ground and uncomfortable air stratification.

[0025] The following explains how the air duct assembly 2 forms the lower air duct 41, the front air duct 42, and the upper air duct 43. The wall-mounted air conditioner indoor unit also includes the air duct assembly 2, which is located inside the casing 1. The air duct assembly 2 includes a rear casing 23, a volute 24, and a front casing 25 arranged sequentially from back to front. A main air duct 21 is formed between a portion of the rear casing 23 and the volute 24, and a secondary air duct 22 is formed between the front casing 25 and the front wall 11 of the casing 1. A lower air guide plate 31 is movably provided at the downwind vent 141, and the lower air guide plate 31 is used to open and close the downwind vent 141 and / or adjust the air outlet direction of the downwind vent 141; a front air guide plate 32 is movably provided at the front air vent 112, and the front air guide plate 32 is used to open and close the front air vent 112 and / or adjust the air outlet direction of the front air vent 112. By controlling the movement of the lower air guide plate 31 and the front air guide plate 32, the rear shell 23, the volute tongue 24, the lower air guide plate 31 and the front air guide plate 32 can be coordinated to form the lower air guide duct 41, the front air guide duct 42 and the upper air guide duct 43.

[0026] Furthermore, by opening the lower air outlet 141 of the lower air guide plate 31 and abutting the edge of the lower air guide plate 31 and the volute tongue 24, a lower air guide channel 41 can be formed between the lower air guide plate 31 and the lower end of the rear shell 23. By closing the lower air outlet 141 with the lower air guide plate 31 and opening the front air outlet 112 with the front air guide plate 32 and the edge of the front air guide plate 32 abutting against the volute tongue 24, a front air guide duct 42 can be formed between the lower air guide plate 31 and the front air guide plate 32. By closing the lower air vent 141 with the lower air guide plate 31 and closing the front air vent 112 with the front air guide plate 32, the lower air guide plate 31, the front air guide plate 32 and the volute tongue 24 can together form the upper air guide duct 43.

[0027] The connection method between the lower air guide plate 31 and the front air guide plate 32 and the housing 1 is described below. The lower air guide plate 31 is rotatably disposed at the lower air outlet 141. The lower air guide plate 31 includes a lower air guide plate first edge 311, a lower air guide plate second edge 312 and a lower air guide plate rotating part disposed opposite to each other in the width direction of the lower air guide plate 31. The lower air guide plate rotating part is located between the lower air guide plate first edge 311 and the lower air guide plate second edge 312. The lower air guide plate rotating part and the housing 1 are rotatably connected by a lower rotating shaft 313, which is located above the lower air outlet 141. The lower air guide plate first edge 311 is used to abut against the volute tongue 24. When the lower air guide plate first edge 311 abuts against the volute tongue 24, a lower air guide channel 41 can be formed between the lower air guide plate 31 and the lower end of the rear housing 23. The front air vent 112 includes an upper edge and a lower edge of the front air vent that are arranged opposite each other in the vertical direction; the front air guide plate 32 includes a first edge 321 and a second edge 322 of the front air guide plate that are arranged opposite each other in the width direction; the first edge 321 of the front air guide plate is located near the upper edge of the front air vent, and the first edge 321 of the front air guide plate and the housing 1 are rotatably connected by a front rotating shaft 323; wherein, the second edge 322 of the front air guide plate is used to abut against the volute tongue 24, and when the second edge 322 of the front air guide plate abuts against the volute tongue 24, a front air guide duct 42 can be formed between the lower air guide plate 31 and the front air guide plate 32.

[0028] The connection between the upper air guide plate 33 and the housing 1 will be described below. The upper air guide plate 33 is movably provided at the upper air outlet 111. The upper air guide plate 33 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 upper air vent 111 includes an upper edge 1111 and a lower edge 1112 of the upper air vent that are arranged opposite each other in the vertical direction; the upper air guide plate 33 includes a first edge 331 and a second edge 332 of the upper air guide plate that are arranged opposite each other in the width direction; the first edge 331 of the upper air guide plate is located close to the upper edge 1111 of the upper air vent, and the first edge 331 of the upper air guide plate and the housing 1 are rotatably connected by the upper rotating shaft 333.

[0029] Furthermore, the upper air guide plate 33 is rotatably set at the upper air outlet 111. When the upper air guide plate 33 opens the upper air outlet 111, the air outlet direction of the upper air outlet 111 can be adjusted by adjusting the tilt angle of the upper air guide plate 33 relative to the horizontal direction. When the indoor unit of the wall-mounted air conditioner is in cooling mode, the upper air guide plate 33 plays a role in expanding and guiding the cold air, preventing the cold air from flowing back to the air inlet 131 of the casing 1.

[0030] The specific structure of the housing 1 is described below. An upper air vent 111 is formed on the top front side of the housing 1 or at the upper end of the front wall 11 of the housing 1. A front air vent 112 is formed in the middle or at the lower end of the front wall 11 of the housing 1. A lower air vent 141 is formed on the bottom wall 14 of the housing 1.

[0031] The housing 1 includes a top wall 13 and a bottom wall 14 arranged vertically opposite each other, and a front wall 11 and a rear wall 12 arranged front to back. An upper air vent 111 is formed on the front side of the top wall 13 or the upper end of the front wall 11, a front air vent 112 is formed in the middle of the front wall 11 or the lower end of the front wall 11, and a lower air vent 141 is formed on the front side of the bottom wall 14. Specifically, when the indoor unit of the wall-mounted air conditioner is in cooling mode, in the initial stage, the user has a need for large air volume and rapid cooling. The lower air guide plate 31 opens the lower air outlet 141, and the lower end of the main air duct 21 and the lower air outlet 141 form a lower air guide duct 41. The compressor runs at high frequency P1, and the fan blades 52 rotate according to the fan speed adjusted by the user. Indoor air enters the main air duct 21 through the air inlet 131 and exchanges heat with the indoor heat exchanger 51 when it flows through the indoor heat exchanger 51. Then, the cold air in the main air duct 21 is discharged to the user's activity area through the lower air guide duct 41 and the lower air outlet 141 to achieve the purpose of rapid cooling. When the indoor temperature is detected to reach the user-set temperature T1, the compressor frequency is reduced to P2, the lower air guide plate 31 closes the lower air outlet 141, the front air guide plate 32 opens the front air outlet, and the lower end of the main air duct 21 and the front air outlet 112 form a front air guide duct 42. The cold air in the main air duct 21 is discharged through the front air guide duct 42 and the front air outlet 112, achieving a near-field anti-direct blowing effect, preventing cold air from blowing on people, and providing sufficient cooling for the main activities of indoor users. When the indoor temperature is detected to be lower than the user-set temperature T1, the compressor frequency is reduced to P3, the lower air guide plate 31 closes the lower air outlet 141, the front air guide plate 32 closes the front air outlet 112, and the upper air guide plate 33 opens the upper air outlet 111. An upper air guide duct 43 is formed between the lower end of the main air duct 21 and the lower end of the secondary air duct 22. Air in the main air duct 21 enters the secondary air duct 22 through the upper air guide duct 43 and is then discharged through the upper air outlet 111, so that the cool air in the room does not blow on people. The compressor operates at a low frequency to maintain the indoor temperature, providing users with comfortable air supply while maximizing energy saving.

[0032] When the indoor unit of the wall-mounted air conditioner is in heating mode, in the initial stage, the compressor runs at high frequency P4, the fan blades 52 rotate at low speed R1, the lower air guide plate 31 closes the lower air outlet 141, the front air guide plate 32 opens the front air outlet 112, and the lower end of the main air duct 21 and the front air outlet 112 form a front air guide duct 42. The hot air in the main air duct 21 is discharged into the room through the front air guide duct 42 and the front air outlet 112, avoiding the delivery of cold air to the user's normal activity area and causing user discomfort, while also raising the room temperature to a certain extent. When the tube temperature of the indoor heat exchanger is detected to be greater than T2, the speed of the fan blade 52 is increased to R2, the lower air guide plate 31 opens the lower air outlet 141 and the angle between the lower air guide plate 31 and the vertical direction is the first angle, the upper air guide plate 33 closes the upper air outlet 111, and the lower air guide 41 is formed between the lower end of the main air duct 21 and the lower air outlet 141. The air in the main air duct 21 is discharged into the room through the lower air guide 41 and the lower air outlet 141. The airflow is relatively warm and is directly delivered to the user's normal activity area to achieve a rapid temperature rise effect. When the pipe temperature of the indoor heat exchanger is detected to be greater than T3, the lower air guide plate 31 opens the lower air outlet 141 and the angle between the lower air guide plate 31 and the vertical direction is the second angle, which is smaller than the first angle. The upper air guide plate 33 closes the upper air outlet 111. The lower air guide duct 41 is formed between the lower end of the main air duct 21 and the lower air outlet 141. The air in the main air duct 21 is discharged into the room through the lower air guide duct 41 and the lower air outlet 141. The hot air is vertically delivered to the ground to achieve floor heating air supply, so that users can feel the comfortable air supply effect of warm but not dry. When the indoor temperature is detected to be higher than the user-set temperature T1, the compressor frequency is reduced to P5, which can maintain the indoor temperature and achieve energy-saving operation.

[0033] Example 2 Based on Embodiment 1, this embodiment proposes that the lower air guide plate 31 includes a first lower air guide plate and a second lower air guide plate, which are arranged opposite to each other and can be rotatably arranged at the lower air outlet 141. By rotating the first lower air guide plate towards the inside of the housing 1 and abutting against the volute tongue 24, a lower air guide channel 41 can be formed between the lower end of the first lower air guide plate and the rear housing 23; by rotating the second lower air guide plate towards the outside of the housing 1 and swinging the second lower air guide plate back and forth, the air outlet direction of the lower air outlet 141 can be adjusted, or back and forth air sweeping can be achieved. Thus, by rotating the first lower air guide plate into the housing 1 and abutting against the volute tongue 24, the lower air guide duct 41 can be reliably formed, ensuring the airflow guidance of the lower air outlet mode; at the same time, the second lower air guide plate rotates outward from the housing 1 and swings back and forth, allowing adjustment of the air outlet direction of the lower air outlet 141 or the realization of back and forth air sweeping, thereby meeting the user's needs for different air delivery angles, avoiding direct blowing, and improving comfort. The independent movement mechanism of the two lower air guide vanes simplifies the air duct switching mechanism, reduces the complexity and cost of parts, and at the same time ensures the air duct's sealing and airflow efficiency under different air outlet modes, thereby improving the energy efficiency of air conditioning operation.

[0034] Example 3 Based on Embodiment 1, this embodiment proposes that the front air guide plate 32 includes a first front air guide plate and a second front air guide plate, which are arranged opposite to each other and rotatably disposed at the front air inlet 112. By rotating the first front air guide plate toward the inside of the housing 1 and abutting against the volute tongue 24, a front air guide duct 42 can be formed between the first front air guide plate and the lower air guide plate 31; by rotating the second front air guide plate toward the outside of the housing 1 and swinging the second front air guide plate up and down, the air outlet direction of the front air outlet 112 can be adjusted, or up and down sweeping can be achieved. Thus, by rotating the first front air guide plate into the housing 1 and abutting against the volute tongue, the front air guide duct 42 can be effectively formed, ensuring smooth airflow in the front air outlet mode; the second front air guide plate rotates outward from the housing 1 and swings up and down, allowing adjustment of the air outlet direction of the front air outlet 112 or realizing up and down air sweeping, expanding the air supply coverage, realizing uniform air supply, and improving the uniformity of indoor temperature distribution. Users can flexibly adjust the air outlet angle and sweeping mode of the front air vent 112 as needed to avoid discomfort caused by fixed-direction air supply. At the same time, the movement mechanism of the air guide plate works in conjunction with the air duct components to reduce wind resistance and noise and improve user experience.

[0035] Example 4 Based on Embodiment 1, this embodiment proposes that the front wall 11 includes a main front wall section, an upper front wall section, and a lower front wall section; the upper front wall section and the main front wall section are connected vertically and horizontally, and the lower front wall section and the main front wall section are connected vertically and horizontally. An upwind opening 111 is formed between the upper end of the upper section of the front wall and the front end of the top wall 13. The flow area of ​​the upwind opening 111 can be adjusted by controlling the upper section of the front wall to extend and retract relative to the main section of the front wall. A front air vent 112 is formed between the lower end of the lower section of the front wall and the front end of the bottom wall 14. The flow area of ​​the front air vent 112 can be adjusted by controlling the vertical extension and retraction of the lower section of the front wall relative to the main section of the front wall. Thus, by controlling the vertical extension and retraction of the upper and lower sections of the front wall relative to the main section of the front wall, the flow area of ​​the upper air outlet 111 and the front air outlet 112 can be adjusted, thereby optimizing the air volume distribution according to different air outlet methods (such as upper air outlet and front air outlet), improving the air conditioning energy efficiency and operational flexibility. Adjusting the vent area helps reduce wind resistance and noise, avoids airflow turbulence, and ensures efficient air delivery under different operating conditions. At the same time, the compact design requires no additional space, enhancing the product's practicality and market competitiveness.

[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, The device includes a housing (1), which has an upper air vent (111), a front air vent (112), and a lower air vent (141) arranged sequentially from top to bottom. The upper air vent (111), the front air vent (112), and the lower air vent (141) are all connected to the interior. The housing (1) has a main air duct (21) and a secondary air duct (22) inside. The secondary air duct (22) is located in front of the main air duct (21) and is connected to the upper air vent (111). The wall-mounted air conditioner indoor unit has a bottom air outlet, a front air outlet, and a top air outlet. When the indoor unit of the wall-mounted air conditioner is in the downward air outlet mode, a downward air guide duct (41) is formed between the lower end of the main air duct (21) and the downward air outlet (141). The downward air guide duct (41) connects the main air duct (21) and the downward air outlet (141) and is used to guide the air in the main air duct (21) to the downward air outlet (141) and discharge it through the downward air outlet (141). When the indoor unit of the wall-mounted air conditioner is in the front air outlet mode, a front air guide duct (42) is formed between the lower end of the main air duct (21) and the front air outlet (112). The front air guide duct (42) connects the main air duct (21) and the front air outlet (112) and is used to guide the air in the main air duct (21) to the front air outlet (112) and discharge it through the front air outlet (112). When the indoor unit of the wall-mounted air conditioner is in the upward air outlet mode, an upper air guide duct (43) is formed between the lower end of the main air duct (21) and the lower end of the secondary air duct (22). The upper air guide duct (43) connects the main air duct (21) and the secondary air duct (22) and is used to guide the air in the main air duct (21) to the secondary air duct (22) and then discharge it through the upper air outlet (111).

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, It also includes an air duct assembly (2), which is disposed inside the housing (1); the air duct assembly (2) includes a rear shell (23), a volute (24) and a front shell (25) arranged sequentially from back to front; the main air duct (21) is formed between a portion of the rear shell (23) and the volute (24), and the secondary air duct (22) is formed between the front shell (25) and the front wall (11) of the housing (1); A lower air guide plate (31) is movably provided at the lower air inlet (141), and a front air guide plate (32) is movably provided at the front air inlet (112). By controlling the movement of the lower air guide plate (31) and the front air guide plate (32), the rear shell (23), the volute tongue (24), the lower air guide plate (31) and the front air guide plate (32) can cooperate to form the lower air guide duct (41), the front air guide duct (42) and the upper air guide duct (43).

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, By opening the lower air inlet (141) with the lower air guide plate (31) and the edge of the lower air guide plate (31) and the volute tongue (24) abutting, the lower air guide plate (31) and the lower end of the rear shell (23) can form the lower air guide channel (41). By closing the lower air outlet (141) with the lower air guide plate (31), opening the front air outlet (112) with the front air guide plate (32), and having the edge of the front air guide plate (32) and the volute tongue (24) abut against each other, the front air guide duct (42) can be formed between the lower air guide plate (31) and the front air guide plate (32); By closing the lower air vent (141) with the lower air guide plate (31) and closing the front air vent (112) with the front air guide plate (32), the lower air guide plate (31), the front air guide plate (32) and the volute tongue (24) can together form the upper air guide duct (43).

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The lower air guide plate (31) is rotatably disposed at the lower air outlet (141). The lower air guide plate (31) includes a first edge (311), a second edge (312), and a rotating part of the lower air guide plate, which are disposed opposite to each other in the width direction of the lower air guide plate (31). The rotating part of the lower air guide plate is located between the first edge (311) and the second edge (312) of the lower air guide plate. The rotating part of the lower air guide plate and the housing (1) are rotatably connected by a lower rotating shaft (313), which is located above the lower air outlet (141). The first edge (311) of the lower air guide plate is used to abut against the volute tongue (24). The front air vent (112) includes an upper edge and a lower edge of the front air vent that are arranged opposite to each other in the vertical direction; the front air guide plate (32) includes a first edge (321) and a second edge (322) of the front air guide plate that are arranged opposite to each other in the width direction of the front air guide plate (32); the first edge (321) of the front air guide plate is arranged close to the upper edge of the front air vent, and the first edge (321) of the front air guide plate and the housing (1) are rotatably connected by a front rotating shaft (323); wherein, the second edge (322) of the front air guide plate is used to abut against the volute tongue (24).

5. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, An upper air guide plate (33) is movably provided at the upper air outlet (111). The upper air guide plate (33) is used to open or close the upper air outlet (111) or adjust the air outlet direction of the upper air outlet (111). The upper air vent (111) includes an upper edge (1111) and a lower edge (1112) of the upper air vent that are arranged opposite to each other in the vertical direction; the upper air guide plate (33) includes a first edge (331) and a second edge (332) of the upper air guide plate that are arranged opposite to each other in the width direction of the upper air guide plate (33); the first edge (331) of the upper air guide plate is arranged close to the upper edge (1111) of the upper air vent, and the first edge (331) of the upper air guide plate and the housing (1) are rotatably connected by an upper rotating shaft (333).

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that, The upper air guide plate (33) is rotatably disposed at the upper air outlet (111). When the upper air guide plate (33) opens the upper air outlet (111), the air outlet direction of the upper air outlet (111) can be adjusted by adjusting the tilt angle of the upper air guide plate (33) relative to the horizontal direction.

7. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The lower air guide plate (31) includes a first lower air guide plate and a second lower air guide plate. The first lower air guide plate and the second lower air guide plate are arranged opposite each other and can be rotatably arranged at the lower air outlet (141). By rotating the first lower air guide plate toward the interior of the housing (1) and abutting against the volute tongue (24), the lower air guide channel (41) can be formed between the lower end of the first lower air guide plate and the rear housing (23); by rotating the second lower air guide plate toward the exterior of the housing (1) and swinging the second lower air guide plate back and forth, the air outlet direction of the lower air outlet (141) can be adjusted, or back and forth air sweeping can be achieved.

8. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The front air guide plate (32) includes a first front air guide plate and a second front air guide plate. The first front air guide plate and the second front air guide plate are arranged opposite each other and can be rotatably arranged at the front air inlet (112). By rotating the first front air guide plate toward the interior of the housing (1) and abutting against the volute tongue (24), the front air guide duct (42) can be formed between the first front air guide plate and the lower air guide plate (31); by rotating the second front air guide plate toward the exterior of the housing (1) and swinging the second front air guide plate up and down, the air outlet direction of the front air outlet (112) can be adjusted, or up and down sweeping can be achieved.

9. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The upper air vent (111) is formed on the top front side of the housing (1) or at the upper end of the front wall (11) of the housing (1), the front air vent (112) is formed in the middle of the front wall (11) of the housing (1) or at the lower end of the front wall (11) of the housing (1), and the lower air vent (141) is formed on the bottom wall (14) of the housing (1).

10. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The housing (1) includes a top wall (13), a front wall (11) and a bottom wall (14). The front wall (11) includes a main section, an upper section and a lower section. The upper section and the main section are telescopically connected vertically, and the lower section and the main section are telescopically connected vertically. The upper air vent (111) is formed between the upper end of the upper section of the front wall and the front end of the top wall (13). The flow area of ​​the upper air vent (111) can be adjusted by controlling the upper section of the front wall to extend and retract relative to the main section of the front wall. The front air vent (112) is formed between the lower end of the lower section of the front wall and the front end of the bottom wall (14). The flow area of ​​the front air vent (112) can be adjusted by controlling the upper and lower extension and retraction of the lower section of the front wall relative to the main section of the front wall.

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