Wall-mounted air conditioner indoor unit and control method

Abstract

The embodiment of the invention discloses a wall-mounted air conditioner indoor unit and a control method, and belongs to the technical field of air conditioning. The wall-mounted air conditioner indoor unit comprises a shell, an indoor unit, a heat exchanger and a heat exchanger, the air guide mechanism comprises an upper air guide plate and a lower air guide plate which are sequentially arranged at the air outlet from top to bottom, the lower end of the upper air guide plate is rotatably arranged on the shell, and the upper end of the lower air guide plate is rotatably arranged on the shell; the upper air guide plate and the lower air guide plate can be independently controlled to deflect towards the interior or the exterior of the shell, and / or the upper air guide plate and the lower air guide plate can be independently controlled to swing in a preset area, and the upper air guide plate and the lower air guide plate are cooperatively matched to form multiple air guide modes. According to the embodiment of the invention, the airflow is blown out in a non-straight-up and non-straight-down mode during upward air outlet and downward air outlet, the airflow organization effect is good, and the comfort experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more specifically, to a wall-mounted air conditioner indoor unit and its control method. Background Technology

[0002] Currently, wall-mounted air conditioner indoor units using axial flow fans can only achieve downward airflow and have a single air supply mode, which cannot meet the diverse comfort requirements of the human body.

[0003] In related technologies, although it is proposed to achieve vertical air supply by using two axial flow fans, when the air is discharged from the top and bottom, the airflow flows through the W evaporator in the forward direction and the W evaporator in the reverse direction, respectively. The airflow resistance inside the duct is different, resulting in a large difference in the air volume between the top and bottom outlets, which is prone to fluctuation. In addition, the air can only be supplied vertically, resulting in poor airflow organization. Summary of the Invention

[0004] This application provides a wall-mounted air conditioner indoor unit and control method to at least solve the technical problem that existing wall-mounted air conditioner indoor units using axial flow fans can only deliver air vertically, resulting in poor airflow organization.

[0005] According to a first aspect of the embodiments of this application, a wall-mounted air conditioner indoor unit is provided, the wall-mounted air conditioner indoor unit comprising:

[0006] The casing has an air outlet on its front side wall;

[0007] An air guiding mechanism includes an upper air guide plate and a lower air guide plate arranged sequentially from top to bottom at the air outlet, wherein the lower end of the upper air guide plate is rotatably disposed on the housing, and the upper end of the lower air guide plate is rotatably disposed on the housing;

[0008] The upper air guide plate and the lower air guide plate can be independently controlled to deflect toward the inside or outside of the housing, and / or the upper air guide plate and the lower air guide plate can be independently controlled to swing within a preset area, and the upper air guide plate and the lower air guide plate cooperate to form a variety of air guiding modes.

[0009] In this embodiment, by setting a rotatable upper air guide plate and a lower air guide plate at the air outlet on the front side of the housing, and by controlling the position and state of the upper air guide plate and the lower air guide plate, a variety of air guiding forms can be realized, so that the airflow direction is blown out in a non-straight up and down manner when the air is vented from the top and bottom, the airflow organization effect is good, and the user comfort experience is improved.

[0010] In conjunction with the first aspect, in an optional embodiment of this application, when the air outlet is not in an air-outlet state, the upper air guide plate and the lower air guide plate cooperate to close the air outlet.

[0011] In conjunction with the first aspect, in an optional embodiment of the present application, the wall-mounted air conditioner indoor unit includes a first air guiding mode. In the first air guiding mode, the upper air guide plate is controlled to be deflected in a first position toward the outside of the housing, and the lower air guide plate is controlled to be deflected in a second position toward the inside of the housing.

[0012] And / or, the wall-mounted air conditioner indoor unit includes a second air guiding mode, in which the upper air guide plate is controlled to deflect inward toward the inside of the housing in the second air guiding mode, and the lower air guide plate is controlled to deflect inward toward the outside of the housing in a fourth position.

[0013] And / or, the wall-mounted air conditioner indoor unit includes a third air guiding mode, in which both the upper air guide plate and the lower air guide plate are controlled to swing outside the housing.

[0014] In conjunction with the first aspect, in an optional embodiment of the present application, the air guiding mechanism further includes a first driving unit and a second driving unit;

[0015] The first driving unit includes a first driving motor, which is disposed near the upper air guide plate, and the lower end of the upper air guide plate is fixedly connected to the drive shaft of the first driving motor. The first driving motor drives the upper air guide plate to rotate.

[0016] And / or, the second drive unit includes a second drive motor, which is disposed adjacent to the lower air guide plate, and the upper end of the lower air guide plate is fixedly connected to the drive shaft of the second drive motor, and the second drive motor drives the lower air guide plate to rotate.

[0017] In conjunction with the first aspect, in an optional embodiment of the present application, the air guiding mechanism further includes a first driving unit and a second driving unit;

[0018] The first driving unit includes a first driving motor and a first rotating shaft. The first driving shaft is fixed to the left and right sides of the housing. The lower end of the upper air guide plate is rotatably connected to the first rotating shaft. The driving shaft of the first driving unit is embedded in the first rotating shaft and drivenly connected to the upper air guide plate to drive the upper air guide plate to rotate around the first rotating shaft.

[0019] And / or, the second drive unit includes a second drive motor and a second rotating shaft. The second drive shaft is fixed to the left and right sides of the housing. The lower end of the lower air guide plate is rotatably connected to the second rotating shaft. The drive shaft of the second drive unit is embedded in the second rotating shaft and drivenly connected to the lower air guide plate to drive the lower air guide plate to rotate around the second rotating shaft.

[0020] In conjunction with the first aspect, in an optional embodiment of the present application, the wall-mounted air conditioner indoor unit further includes a fan component, which is disposed within the housing;

[0021] The fan component is an axial flow fan, and the air outlet of the axial flow fan faces the air outlet.

[0022] In conjunction with the first aspect, in one optional embodiment of the present application, there are multiple axial flow fans, and the multiple axial flow fans are arranged along the length direction of the housing.

[0023] In conjunction with the first aspect, in one optional embodiment of the present application, the wind speed of the plurality of axial flow fans can be independently controlled.

[0024] In conjunction with the first aspect, in one optional embodiment of the present application, the top wall and bottom wall of the housing are respectively provided with air inlets;

[0025] The wall-mounted air conditioner indoor unit also includes an indoor heat exchanger, which includes a first heat exchange section, a second heat exchange section and a third heat exchange section connected in sequence.

[0026] The first heat exchange section and the third heat exchange section correspond to the air inlets located on the top wall and the bottom wall, respectively, and the second heat exchange section corresponds to the air inlet of the axial flow fan.

[0027] According to a second aspect of the embodiments of this application, a control method for a wall-mounted air conditioner indoor unit is provided, which applies the wall-mounted air conditioner indoor unit provided in the first aspect of the embodiments of this application. The control method includes:

[0028] Under the air outlet outlet airflow condition, determine the inner loop parameters, which include the infrared radiation power of the heat dissipation source and / or the inner loop temperature;

[0029] The target airflow pattern is determined based on the inner ring parameters;

[0030] Control the upper air guide plate and the lower air guide plate to be in a state corresponding to the target air guiding mode.

[0031] According to a second aspect of the embodiments of this application, a control method for a wall-mounted air conditioner indoor unit is provided, which is applied to the wall-mounted air conditioner indoor unit provided in the first aspect of the embodiments of this application. The control method includes:

[0032] In cooling mode, the infrared radiation power and inner ring temperature of the indoor heat dissipation source are obtained;

[0033] When the infrared radiation power of the heat dissipation source is less than or equal to the first power, the upper air guide plate and the lower air guide plate are controlled to cooperate to form the first air guiding mode.

[0034] When the infrared radiation power of the heat dissipation source is greater than or equal to the first power, the upper air guide plate and the lower air guide plate are controlled to cooperate to form the second air guiding mode.

[0035] When the inner ring temperature is within the preset temperature range, the upper air guide plate and the lower air guide plate are controlled to work together to form the third air guiding mode.

[0036] In conjunction with the first aspect, in an optional embodiment of the present application, in the second air guiding mode, the position of the target heat source in the direction perpendicular to the indoor unit of the wall-mounted air conditioner is further determined, and the deflection angle of the lower air guide plate is determined according to the position so that the airflow can blow towards the location of the target heat source.

[0037] Wherein: the target heat dissipation source is a heat dissipation source with infrared radiation power greater than the first power.

[0038] In conjunction with the first aspect, in an optional embodiment of this application, the housing is provided with a plurality of axial flow fans, which are arranged along the length of the housing to divide the indoor space into a plurality of sub-regions corresponding to the arrangement positions of the plurality of axial flow fans. The control method includes:

[0039] In the second air guiding mode, the infrared radiation power of the heat dissipation source in each sub-region is compared with the first power and the second power, respectively, and the second power is greater than the first power;

[0040] The rotational speed of the multiple axial flow fans is controlled based on the comparison results.

[0041] In conjunction with the first aspect, in an optional embodiment of this application, controlling the rotational speed of the plurality of axial flow fans based on the comparison result includes:

[0042] When the infrared radiation power of the heat dissipation source in the sub-region is greater than or equal to the second power, the rotational speed of the corresponding axial flow fan is controlled at the first rotational speed.

[0043] And / or, if the infrared radiation power of the heat dissipation source in the sub-region is greater than the first power and less than the second power, the rotation speed of the corresponding axial fan is controlled at the second rotation speed.

[0044] And / or, if the infrared radiation power of the heat dissipation source in the sub-region is less than or equal to the first power, the speed of the corresponding axial flow fan is controlled at the third speed or the axial flow fan is stopped.

[0045] The first rotational speed > the second rotational speed > the third rotational speed.

[0046] In conjunction with the first aspect, in an optional embodiment of this application, in the heating mode, the upper air guide plate and the lower air guide plate are controlled to cooperate to form the second air guiding mode. Attached Figure Description

[0047] The above and other objects, features, and advantages of this disclosure will become more apparent from the detailed description of exemplary embodiments with reference to the accompanying drawings. The drawings described below are merely some embodiments of this disclosure, and those skilled in the art will be able to obtain other drawings based on these drawings without any inventive effort.

[0048] Figure 1 This is a front view of the wall-mounted air conditioner indoor unit provided in the embodiments of this application.

[0049] Figure 2 This is a cross-sectional view of the left side of the wall-mounted air conditioner indoor unit provided in the embodiment of this application.

[0050] Figure 3 This is a state diagram of the wall-mounted air conditioner indoor unit provided in the first air guiding mode according to the embodiments of this application.

[0051] Figure 4 This is an airflow organization diagram of the airflow in the indoor space under the first air guiding mode according to an embodiment of this application.

[0052] Figure 5 This is a state diagram of the wall-mounted air conditioner indoor unit provided in the second air guiding mode according to the embodiments of this application.

[0053] Figure 6 This is an airflow organization diagram of the airflow in the indoor space under the second air guiding mode according to an embodiment of this application.

[0054] Figure 7 This is a state diagram of the wall-mounted air conditioner indoor unit in the third air guiding mode provided in the embodiments of this application.

[0055] Figure 8 This is an airflow organization diagram of the airflow in the indoor space under the third air guiding mode in the embodiment of this application.

[0056] Figure 9 This is one of the control flowcharts for the indoor unit of a wall-mounted air conditioner according to an embodiment of this application.

[0057] Figure 10 This is the second control flowchart of the wall-mounted air conditioner indoor unit in this application embodiment.

[0058] Figure 11 This is the third control flowchart of the wall-mounted air conditioner indoor unit in this application embodiment.

[0059] Figure 12This is a control flowchart based on a specific example of an embodiment of this application.

[0060] The attached figures are labeled as follows:

[0061] 1. Housing; 11. Air outlet; 12. Air inlet; 21. Upper air guide plate; 22. Lower air guide plate; 23. First drive unit; 24. Second drive unit; 3. Fan assembly; 4. Indoor heat exchanger; 41. First heat exchange unit; 42. Second heat exchange unit; 43. Third heat exchange unit; 5. Air duct; 6. Fan bracket. Detailed Implementation

[0062] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0063] It should be understood that "multiple" as mentioned herein refers to two or more. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this document 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. In addition, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first," "second," etc., are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and the terms "first," "second," etc., do not necessarily imply that they are different.

[0064] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0065] This embodiment proposes a wall-mounted air conditioner indoor unit, referring to... Figure 1 and Figure 2 The wall-mounted air conditioner indoor unit includes a casing 1 and an air guide mechanism, wherein:

[0066] The casing 1 is a rectangular or nearly rectangular structure formed by connecting the front casing wall, rear casing wall, left side plate, right side plate, top wall, and bottom wall in pairs. An air outlet 11 is provided on the front casing wall, and an air inlet 12 is provided on the top wall and / or bottom wall. The wall-mounted air conditioner indoor unit also includes an indoor heat exchanger 4 and a fan assembly 3. Both the indoor heat exchanger 4 and the fan assembly 3 are located inside the casing 1, and an air duct 5 is formed between the air outlet end of the fan assembly 3 and the air outlet 11. Under the action of the fan assembly 3, indoor airflow enters the casing 1 through the air inlet 12, undergoes heat exchange in the indoor heat exchanger 4, and is then blown into the room through the air outlet 11.

[0067] In a preferred embodiment, air inlets 12 are provided on the top wall and the bottom wall respectively. The indoor heat exchanger 4 includes a first heat exchange section 41, a second heat exchange section 42 and a third heat exchange section 43 connected in sequence. The first heat exchange section 41 and the third heat exchange section 43 correspond to the air inlets 12 located on the bottom wall and the top wall respectively. The second heat exchange section 42 corresponds to the air inlet end of the fan component 3, thereby significantly increasing the air volume and heat exchange area, and improving the effect of indoor temperature regulation.

[0068] In a preferred embodiment, the fan component 3 is an axial flow fan, with its outlet facing the air outlet 11. A fan bracket 6 is provided inside the housing 1 between the indoor heat exchanger 4 and the air outlet 11, and the axial flow fan is mounted on the fan bracket 6. More preferably, there are multiple axial flow fans, which are arranged along the length of the housing 1, and the multiple axial flow fans can be controlled to start simultaneously or individually; even more preferably, the wind speed of the multiple axial flow fans can be controlled independently.

[0069] In other possible implementations, the fan component 3 can also be a cross-flow fan or a centrifugal fan. By rationally designing the position of the air inlet 12, the structure and position of the indoor heat exchanger 4, and the structure of the air duct, a similar effect to the axial flow fan described above can also be achieved.

[0070] The air guiding mechanism includes an upper air guide plate 21 and a lower air guide plate 22 arranged sequentially from top to bottom at the air outlet 11. The lower end of the upper air guide plate 21 is rotatably mounted on the housing 1, and the upper end of the lower air guide plate 22 is rotatably mounted on the housing 1. Preferably, when the air outlet 11 is not in an air-outflow state, the upper air guide plate 21 and the lower air guide plate 22 cooperate to close the air outlet 11. The lower end of the upper air guide plate 21 is in contact with the upper end of the lower air guide plate 22, or the lower end and the upper end of the upper air guide plate 21 are connected by an intermediate plate.

[0071] The air guiding mechanism also includes a first driving part 23 and a second driving part 24. The first driving part 23 includes a first driving motor, which is disposed near the upper air guiding plate 21, and the lower end of the upper air guiding plate 21 is fixedly connected to the drive shaft of the first driving motor. The first driving motor drives the upper air guiding plate 21 to rotate. And / or, the second driving part 24 includes a second driving motor, which is disposed near the lower air guiding plate 22, and the upper end of the lower air guiding plate 22 is fixedly connected to the drive shaft of the second driving motor. The second driving motor drives the lower air guiding plate 22 to rotate.

[0072] To ensure driving stability of the upper air guide plate 21 and the lower air guide plate 22, there are two first driving units 23 and two second driving units 24. The two first driving units 23 are located on the left and right sides of the housing 1 and are fixedly connected to the left and right ends of the upper air guide plate 21 through their own driving shafts. The two first driving units 23 start synchronously to rotate the upper air guide plate 21. Similarly, the two second driving units 24 are also located on the left and right sides of the housing 1 and are fixedly connected to the left and right ends of the lower air guide plate 22 through their own driving shafts. The two second driving units 24 start synchronously to rotate the lower air guide plate 22.

[0073] The upper air guide plate 21 and the lower air guide plate 22 can be independently controlled to deflect towards the inside or outside of the housing 1, and / or, the upper air guide plate 21 and the lower air guide plate 22 can be independently controlled to deflect towards the outside of the housing 1 or swing within a preset area, and the upper air guide plate 21 and the lower air guide plate 22 cooperate to form a variety of air guiding modes.

[0074] Among them, the preset area is, for example, a preset angle range located outside the housing, or a preset angle range between the inside and outside of the housing, which can be flexibly designed according to the actual air outlet effect.

[0075] This embodiment controls the upper air guide plate 21 to deflect or swing in different directions, or controls the lower air guide plate 22 to deflect or swing in different directions, thereby achieving different air supply methods under different operating modes of the air conditioner, different changes in the inner ring temperature, different indoor heat source distribution locations, and / or different user air supply needs, and forming different air outlet effects. At the same time, the deflection or swinging setting of the upper air guide plate 21 and the lower air guide plate 22 ensures that the airflow does not blow straight up or straight down from the air outlet 11, resulting in good airflow organization and making the user feel more comfortable.

[0076] In one example, the wall-mounted air conditioner indoor unit includes a first air guiding mode in which the upper air guide plate 21 is controlled at a first position deflected toward the outside of the housing 1, and the lower air guide plate 22 is controlled at a second position deflected toward the inside of the housing 1.

[0077] Specifically, in the first air guiding mode, the positional status of the upper air guide plate 21 and the lower air guide plate 22 is as follows: Figure 3The upper air guide plate 21 is rotated clockwise by an angle N1, that is, the upper air guide plate 21 is deflected towards the outside of the housing 1, and the lower air guide plate 22 is rotated clockwise by an angle N2, that is, the lower air guide plate 22 is deflected towards the inside of the housing 1.

[0078] The value of N1 is greater than 0 degrees and less than or equal to 90 degrees. Preferably, in the first air guiding mode, the upper air guide plate 21 has multiple air guiding positions, and the deflection angle of the upper air guide plate 21 towards the outside of the housing 1 is different under different air guiding positions. For example, N1 = 15*N, N ≤ 6, and N is an integer, that is, the upper air guide plate 21 has 6 air guiding positions. The deflection angle of the upper air guide plate 21 at the first air guiding position is 15°, the deflection angle at the sixth air guiding position is 90°, and for each additional air guiding position, the deflection angle of the upper air guide plate 21 towards the outside of the housing 1 increases by 15°.

[0079] The value of N2 can vary according to the size of the air duct 5. The tilt angle N2 of the lower guide plate 22 needs to satisfy the following: on the one hand, it directs the airflow blown out of the air duct 5 upward to achieve directional upward airflow; on the other hand, it makes the lower end of the lower guide plate 22 form a closed area with the lower edge of the air duct 5 to prevent the airflow in the air duct 5 from overflowing from the lower end of the lower guide plate 22. Preferably, N2 = 30°.

[0080] When a wall-mounted air conditioner indoor unit has multiple axial fans, the speed of each fan can be kept the same. In the first airflow mode, the airflow distribution throughout the room is as follows: Figure 4 As shown, after the airflow is sent out along the top wall, it continues to return along the opposite wall and floor of the wall-mounted air conditioner indoor unit, realizing a large airflow circulation throughout the house, which is especially suitable for achieving rapid cooling in cooling mode.

[0081] In one example, the wall-mounted air conditioner indoor unit includes a second air guiding mode in which the upper air guide plate 21 is controlled to deflect toward the inside of the housing 1 in a third position, and the lower air guide plate 22 is controlled to deflect toward the outside of the housing 1 in a fourth position.

[0082] Specifically, in the second air guiding mode, the positional status of the upper air guide plate 21 and the lower air guide plate 22 is as follows: Figure 5 The upper air guide plate 21 is rotated counterclockwise by an angle of N3, that is, the upper air guide plate 21 is deflected towards the inside of the housing 1, and the lower air guide plate 22 is rotated counterclockwise by an angle of N4, that is, the lower air guide plate 22 is deflected towards the outside of the housing 1.

[0083] The value of N3 can vary according to the size of the air duct 5. The tilt angle N3 of the upper air guide plate 21 needs to satisfy the following: on the one hand, it directs the airflow blown out of the air duct 5 downward to achieve directional downward airflow; on the other hand, it makes the upper end of the upper air guide plate 21 form a closed area with the upper edge of the air duct 5 to prevent the airflow in the air duct 5 from overflowing from the upper end of the upper air guide plate 21. Preferably, N3 = 30°.

[0084] The value of N4 is greater than 0 degrees and less than or equal to 90 degrees. Preferably, in the second air guiding mode, the lower air guide plate 22 has multiple air guiding positions, and the deflection angle of the lower air guide plate 22 towards the outside of the housing 1 is different under different air guiding positions. For example, N4 = 15*N, N ≤ 6, and N is an integer, that is, the lower air guide plate 22 has 6 air guiding positions. The deflection angle of the lower air guide plate 22 under the first air guiding position is 15°, and the deflection angle under the sixth air guiding position is 90°. Moreover, for each additional air guiding position, the deflection angle of the lower air guide plate 22 towards the outside of the housing 1 increases by 15°.

[0085] When a wall-mounted air conditioner indoor unit has multiple axial fans, these fans can operate at different speeds. For example, by dividing the indoor space into multiple sub-zones corresponding to the arrangement of the axial fans, the speed of the corresponding axial fan can be controlled according to the user type of each sub-zone. For instance, if the left side of the room is occupied by young adults and the right side by the elderly, the speed of the leftmost axial fan corresponding to the left side is controlled as R1, and the speed of the rightmost axial fan corresponding to the right side is controlled as R2, where R1 > R2. For example, 1000 rpm < R1 < 1300 rpm, and 650 rpm < R2 < 800 rpm.

[0086] In the second airflow guidance mode, the airflow organization and distribution throughout the house is as follows: Figure 6 As shown, it can achieve directional airflow to people in different areas, quickly meeting the comfort needs of localized areas and avoiding the waste of cooling capacity in cooling mode; at the same time, in heating mode, it can also use the principle of hot air rising to achieve uniform heat distribution throughout the house using a second airflow mode, reducing the temperature difference along the vertical direction of the room and improving comfort. The downward airflow in the second airflow mode can not only achieve directional airflow to people in different areas, but also meet the different airflow needs of different user types.

[0087] In one example, the wall-mounted air conditioner indoor unit includes a third air guiding mode in which both the upper air guide plate 21 and the lower air guide plate 22 are controlled to swing outside the housing 1.

[0088] Specifically, in the third air guiding mode, the positional status of the upper air guide plate 21 and the lower air guide plate 22 is as follows: Figure 7 Both the upper air guide plate 21 and the lower air guide plate 22 swing up and down outside the housing 1, and the swing angle of the upper air guide plate 21 and the lower air guide plate 22 is N5 angle, where N5 is greater than 0 degrees and less than or equal to 90 degrees.

[0089] Preferably, in the third air guiding mode, both the upper air guide plate 21 and the lower air guide plate 22 have multiple swing positions. The swing angle of the upper air guide plate 21 and the lower air guide plate 22 is different under different swing positions. For example, N5 = 15*N, 1 < N ≤ 6, and N is an integer, that is, the upper / lower air guide plate 22 has 6 air guiding positions. The deflection angle of the upper / lower air guide plate 22 at the first air guiding position is 15°, and the deflection angle at the sixth air guiding position is 90°. Moreover, for each additional air guiding position, the swing angle of the upper / lower air guide plate 22 outside the housing 1 increases by 15°.

[0090] When a wall-mounted air conditioner indoor unit has multiple axial flow fans, the speed of each fan can remain the same. In this case, the air delivered by the axial flow fans oscillates up and down with the movement of the upper / lower air guide plates 22, resulting in the following airflow organization throughout the room in the second air guide mode: Figure 8 As shown, this mode greatly reduces the hardness of the cold air, which can avoid the problem of cold air blowing directly on people in low-temperature environments.

[0091] This embodiment also proposes a control method for a wall-mounted air conditioner indoor unit, which uses the wall-mounted air conditioner indoor unit described above, referring to... Figure 9 The control flowchart and control method include the following steps:

[0092] S91. Determine the inner loop parameters when the air outlet 11 is in the air outlet state;

[0093] S92. Determine the target airflow pattern based on the inner ring parameters;

[0094] S93, control the upper air guide plate 21 and the lower air guide plate 22 to be in a state corresponding to the target air guiding mode.

[0095] In this embodiment, the upper air guide plate 21 is rotatably configured at its lower end. This rotatable structure allows the upper end of the upper air guide plate 21 to deflect towards the inside or outside of the housing 1. It also allows the upper air guide plate 21 to swing within a preset area. Furthermore, different states of the upper air guide plate 21, combined with the lower end of the lower baffle deflecting towards the inside or outside of the housing 1, or the lower air guide plate 22 swinging within a preset area, can achieve a variety of different air guiding modes. The air outlet direction and / or airflow state are different under different air guiding modes.

[0096] When the air outlet 11 is in the air-outflow state, the target air-guiding mode is determined by combining the inner ring parameters. Then, the state of the upper air guide plate 21 and the lower air guide plate 22 is intelligently adjusted according to the inner ring parameters, so that the upper air guide plate 21 and the lower air guide plate 22 are in the state corresponding to the target mode to form an air-outflow pattern that is adapted to the current inner ring parameters. This realizes intelligent switching of multiple air-guiding modes to obtain the best comfort effect.

[0097] The inner loop parameters include the infrared radiation power of the heat source and / or the inner loop temperature. Heat sources include users, large heat dissipation equipment, indoor walls, and objects. By detecting the infrared radiation power of the heat source, it can be determined whether the heat source is a significant heat source. Significant heat sources include users and large heat dissipation equipment, while insignificant heat sources include indoor walls and objects. An appropriate airflow pattern is then adopted based on the heat source. In one possible implementation, the infrared radiation power of the heat source is detected using an infrared thermal energy monitor.

[0098] In addition, the inner ring temperature also reflects the regulation of the inner ring temperature by the heat exchange airflow. By determining the appropriate airflow pattern based solely on the inner ring temperature, or by combining the inner ring temperature with the infrared radiation power of the heat source, a better comfort effect can also be achieved.

[0099] This embodiment proposes a control method for a wall-mounted air conditioner indoor unit, which uses the wall-mounted air conditioner indoor unit proposed above. The control method includes the following steps:

[0100] S101, in cooling mode, obtain the infrared radiation power and inner ring temperature of the indoor heat dissipation source;

[0101] S102. When the infrared radiation power of the heat dissipation source is less than or equal to the first power, control the upper air guide plate 21 and the lower air guide plate 22 to cooperate in forming the first air guiding mode; when the infrared radiation power of the heat dissipation source is greater than the first power, control the upper air guide plate 21 and the lower air guide plate 22 to cooperate in forming the second air guiding mode; when the inner ring temperature is within the preset temperature range, control the upper air guide plate 21 and the lower air guide plate 22 to cooperate in forming the third air guiding mode.

[0102] In this embodiment, after the air conditioner is turned on, the temperature is set to Tn, and the inner ring temperature is detected. At the same time, the infrared radiation power P of the indoor heat dissipation source is monitored to determine whether there are large heat dissipation devices and people in the room. If the infrared radiation power P is less than or equal to the first power M1 (where M1 < 40W), it indicates that the inner ring temperature is low, or the indoor heat dissipation source is only from the reflection of the wall and indoor objects, and there is no obvious heat dissipation source in the room. At this time, the first air guiding mode is adopted, that is, the upper air guide plate 21 is rotated outward of the housing 1 by an angle N1, and the lower air guide plate 22 is rotated inward of the housing 1 by an angle N2, so as to achieve uniform temperature drop through whole-house large circulation.

[0103] When the infrared radiation power P of the indoor heat source is greater than the first power M1, it indicates that the inner ring temperature is too high and there is a significant heat source indoors. At this time, the second air guiding mode is activated, and the air conditioner's cool air can be directly directed to the main heat source to quickly achieve temperature control and comfort requirements at the main heat source, avoiding waste of cooling capacity in uninhabited areas.

[0104] When the inner ring temperature T is within the preset temperature range, such as Tn≤T<T2 (T2=Tn+2℃), it indicates that the ambient temperature has further decreased and the demand for low wind speed has further increased. At this time, the upper / lower air guide plate 22 swings and operates, and the third air guide mode is activated.

[0105] In one optional implementation, in the second airflow guiding mode, the position of the target heat source in the direction perpendicular to the indoor unit of the wall-mounted air conditioner is further determined, and the deflection angle of the lower air guide plate 22 is determined according to the position so that the airflow can be directed towards the location of the target heat source, thereby achieving directional airflow to the target heat source and improving the temperature control comfort requirements of the area where the target heat source is located. The target heat source is, for example, a heat source with infrared radiation power P greater than the first power M1.

[0106] In one optional embodiment, the housing 1 is equipped with multiple axial flow fans, which are arranged along the length of the housing 1, dividing the indoor space into multiple sub-regions corresponding to the arrangement positions of the multiple axial flow fans. The control method includes the following steps:

[0107] S111. In the second air guiding mode, the infrared radiation power of the heat dissipation source in each sub-region is compared with the magnitude of the first power and the second power, respectively, and the second power is greater than the first power.

[0108] S112. Control the speed of multiple axial flow fans based on the comparison results.

[0109] In this embodiment, the infrared radiation power and the second power of the heat dissipation source in each sub-region are further analyzed in detail to determine whether zoned air supply is required.

[0110] Determine if the infrared radiation power P of the heat source in each sub-region is greater than the first power M1 and less than M2 (40W < M2 < 100W). If P ≥ M2, it indicates that the heat source in this sub-region is a young adult, and the speed of the axial fan corresponding to this sub-region should be adjusted to the first speed R1 to ensure the cooling needs of users in this sub-region. If M1 < P < M2, it indicates that the heat source in this sub-region is a child or elderly person, and the speed of the axial fan corresponding to this sub-region should be adjusted to the second speed R2 to avoid the problem of drafts on the elderly and children. If P < M1, it indicates that there is no obvious heat source in this sub-region, and the speed of the axial fan corresponding to this region should be adjusted to the third speed R3 or the axial fan should be directly stopped to avoid wasting cooling capacity, where R3 < R2 < R1.

[0111] During the zoned air supply process, the inner ring temperature is also monitored. When the inner ring temperature drops to the first temperature T1, T1 is greater than the set temperature Tn. For example, T1 is Tn+5℃. If the air is then directed to the user at this time, it will cause discomfort from the blowing at low temperature. After that, the system switches to the first air guiding mode.

[0112] Where 1000rpm < R1 < 1300rpm, 650rpm < R2 < 800rpm, and 0 ≤ R3 < 500rpm,

[0113] In the second air-guiding mode, this embodiment, by combining it with the downward air outlet method, can not only achieve directional air supply to people in different areas, but also take into account the problem of drafts for the elderly and children, while avoiding waste of cooling capacity.

[0114] In one possible implementation, whether to perform zoned air supply can be controlled based on the user's zoned air supply command. If no zoned air supply command is received, multiple axial flow fans are controlled to run at the same speed.

[0115] In one optional implementation, in heating mode, the upper air guide plate 21 and the lower air guide plate 22 are controlled to cooperate to form the second air guiding mode. At this time, the airflow is directed downwards. According to the principle of hot air rising, the downward airflow can make the airflow diffuse along the height of the room, improve the uniformity of the distribution of hot air in the room, and avoid the situation of the head being hot and the feet being cold.

[0116] The following is a detailed description of this embodiment using a specific example:

[0117] Taking a wall-mounted air conditioner indoor unit with two axial flow fans as an example, refer to Figure 1 Main view and Figure 12 The flowchart shows that after the air conditioner is turned on, the temperature is set to Tn. Based on the range of infrared radiation power P fed back by infrared thermal energy monitoring, it is determined whether there are large heat dissipation devices and people in the whole house.

[0118] If P is greater than M1 (M1 < 40W), it means that the heat detected by infrared thermal energy comes only from the reflection of the wall and indoor objects. At this time, there is no obvious heat source in the room. At this time, the top air outlet wall jet mode (i.e., the first air guide mode) is turned on. The upper air guide plate 21 rotates clockwise by N1 (N1 = 15 * N, N ≤ 6, N is an integer), and the lower air guide plate 22 rotates counterclockwise by N2 (N2 = 30°). The uniform temperature drop is achieved through the whole room circulation.

[0119] When P ≥ M1, there is a significant heat source in the room. At this time, the down-discharge directional airflow mode (i.e., the second airflow mode) is activated, allowing the air conditioner's cool air to be directly directed to the main heat source, quickly achieving temperature control and thermal comfort in the main working areas and avoiding wasted cooling in unoccupied areas. Simultaneously, infrared monitoring feedback data is used to first determine the distance L of the target heat source along the direction perpendicular to the indoor unit, and to determine the rotation angle N4 of the down-discharge airflow vane 22. Further analysis is conducted to determine whether the location L of the target heat source requires left / right zone airflow, i.e., whether the feedback data Pleft (Pright) of the left / right zone is less than M2 (40W < M2 < 100W). If it falls within this range, it indicates that the heat source in the left / right zone is a child or elderly person. In this case, the left and right axial fans use different speeds: the fan speed on the side with the elderly or child is R2, and the other side is R1, avoiding the problem of drafts on the elderly or child. When the temperature drops to T1 (T1 = Tn + 5℃), if directional airflow is still directed to the human body, the draft at low temperatures will be uncomfortable. After this, the up-discharge wall-mounted jet airflow mode is activated.

[0120] Further monitoring of the inner ring temperature feedback data shows that when the inner ring temperature Tn≤T<T2 (T2=Tn+2℃), it indicates that the ambient temperature has further decreased and the demand for low wind feel has further increased. At this time, the upper and lower air guide plates 22 swing and start the oscillating air supply mode (i.e. the third air guide mode).

[0121] The sequence numbers or order of description of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0122] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0123] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0124] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0125] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital versatile disc (DVD)), or a semiconductor medium (e.g., solid-state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiments of this application can be a non-volatile storage medium; in other words, it can be a non-transient storage medium.

[0126] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in the embodiments of this application are all authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the scene data of the current frame in the 3D virtual scene involved in the embodiments of this application, the client's device information, and the scene interaction information are all obtained with full authorization.

[0127] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that, The wall-mounted air conditioner indoor unit includes: The housing (1) has an air outlet (11) on its front side wall; The air guiding mechanism includes an upper air guiding plate (21) and a lower air guiding plate (22) arranged sequentially from top to bottom at the air outlet (11), and the lower end of the upper air guiding plate (21) is rotatably disposed on the housing (1), and the upper end of the lower air guiding plate (22) is rotatably disposed on the housing (1). The upper air guide plate (21) and the lower air guide plate (22) can be independently controlled to deflect toward the inside or outside of the housing (1), and / or, the upper air guide plate (21) and the lower air guide plate (22) can be independently controlled to swing within a preset area, and the upper air guide plate (21) and the lower air guide plate (22) cooperate to form a variety of air guiding modes.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, When the air outlet (11) is not in the air-outlet state, the upper air guide plate (21) and the lower air guide plate (22) cooperate to close the air outlet (11).

3. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The wall-mounted air conditioner indoor unit includes a first air guiding mode. In the first air guiding mode, the upper air guide plate (21) is controlled to be deflected to a first position in the direction of the outside of the housing (1), and the lower air guide plate (22) is controlled to be deflected to a second position in the direction of the inside of the housing (1). And / or, the wall-mounted air conditioner indoor unit includes a second air guiding mode, in which the upper air guide plate (21) is controlled to deflect in the direction of the inside of the housing (1) in a third position, and the lower air guide plate (22) is controlled to deflect in the direction of the outside of the housing (1) in a fourth position. And / or, the wall-mounted air conditioner indoor unit includes a third air guiding mode, in which the upper air guide plate (21) and the lower air guide plate (22) are both controlled to swing outside the housing (1).

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, In the first air guiding mode, the upper air guide plate (21) has multiple air guiding positions, and the upper air guide plate (21) deflects at different angles toward the outside of the housing (1) under different air guiding positions; And / or, in the second air guiding mode, the lower air guide plate (22) has multiple air guiding positions, and the deflection angle of the lower air guide plate (22) toward the outside of the housing (1) is different under different air guiding positions; And / or, in the third air guiding mode, both the upper air guide plate (21) and the lower air guide plate (22) have multiple swing positions, and the swing angles of the upper air guide plate (21) and the lower air guide plate (22) are different under different swing positions.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The air guiding mechanism also includes a first drive unit (23) and a second drive unit (24); The first driving unit (23) includes a first driving motor, which is located near the upper air guide plate (21), and the lower end of the upper air guide plate (21) is fixedly connected to the driving shaft of the first driving motor. The first driving motor drives the upper air guide plate (21) to rotate. And / or, the second drive unit (24) includes a second drive motor, which is disposed near the lower air guide plate (22), and the upper end of the lower air guide plate (22) is fixedly connected to the drive shaft of the second drive motor, and the second drive motor drives the lower air guide plate (22) to rotate.

6. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The wall-mounted air conditioner indoor unit also includes a fan component (3), which is disposed inside the housing (1); The fan component (3) is an axial flow fan, and the air outlet of the axial flow fan faces the air outlet (11).

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that, There are multiple axial flow fans, and the multiple axial flow fans are arranged along the length direction of the housing (1).

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that, The wind speed of multiple axial flow fans can be controlled independently.

9. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that, The top and bottom walls of the housing (1) are respectively provided with air inlets (12); The wall-mounted air conditioner indoor unit also includes an indoor heat exchanger (4), which includes a first heat exchange section (41), a second heat exchange section (42), and a third heat exchange section (43) connected in sequence. The first heat exchange section (41) and the third heat exchange section (43) correspond to the air inlets (12) located on the top wall and the bottom wall, respectively, and the second heat exchange section (42) corresponds to the air inlet of the axial flow fan.

10. A control method for a wall-mounted air conditioner indoor unit, characterized in that, It is applied to the wall-mounted air conditioner indoor unit according to any one of claims 1-9, and the control method includes: When the air outlet (11) is in the air-out state, the inner ring parameters are determined, including the infrared radiation power of the heat dissipation source and / or the inner ring temperature. The target airflow pattern is determined based on the inner ring parameters; Control the upper air guide plate (21) and the lower air guide plate (22) to be in a state corresponding to the target air guiding mode.

11. A control method for a wall-mounted air conditioner indoor unit, characterized in that, It is applied to the wall-mounted air conditioner indoor unit as described in claim 3 or 4, and the control method includes: In cooling mode, the infrared radiation power and inner ring temperature of the indoor heat dissipation source are obtained; When the infrared radiation power of the heat dissipation source is less than or equal to the first power, the upper air guide plate (21) and the lower air guide plate (22) are controlled to cooperate to form the first air guiding mode. When the infrared radiation power of the heat dissipation source is greater than or equal to the first power, the upper air guide plate (21) and the lower air guide plate (22) are controlled to cooperate to form the second air guiding mode; When the inner ring temperature is within the preset temperature range, the upper air guide plate (21) and the lower air guide plate (22) are controlled to cooperate to form the third air guiding mode.

12. The control method for the indoor unit of a wall-mounted air conditioner according to claim 11, characterized in that, In the second air guiding mode, the position of the target heat source in the direction perpendicular to the indoor unit of the wall-mounted air conditioner is also determined, and the deflection angle of the lower air guide plate (22) is determined according to the position so that the airflow can blow towards the location of the target heat source; Wherein: the target heat dissipation source is a heat dissipation source with infrared radiation power greater than the first power.

13. The control method for the indoor unit of a wall-mounted air conditioner according to claim 11, characterized in that, The housing (1) is equipped with multiple axial flow fans, which are arranged along the length of the housing (1) to divide the indoor space into multiple sub-regions corresponding to the arrangement positions of the multiple axial flow fans. The control method includes: In the second air guiding mode, the infrared radiation power of the heat dissipation source in each sub-region is compared with the first power and the second power, respectively, and the second power is greater than the first power; The rotational speed of the multiple axial flow fans is controlled based on the comparison results.

14. The control method for the indoor unit of a wall-mounted air conditioner according to claim 13, characterized in that, The step of controlling the rotational speed of the plurality of axial flow fans based on the comparison results includes: When the infrared radiation power of the heat dissipation source in the sub-region is greater than or equal to the second power, the rotational speed of the corresponding axial flow fan is controlled at the first rotational speed. And / or, if the infrared radiation power of the heat dissipation source in the sub-region is greater than the first power and less than the second power, the rotation speed of the corresponding axial fan is controlled at the second rotation speed. And / or, if the infrared radiation power of the heat dissipation source in the sub-region is less than or equal to the first power, the speed of the corresponding axial flow fan is controlled at the third speed or the axial flow fan is stopped. The first rotational speed > the second rotational speed > the third rotational speed.

15. The control method for the indoor unit of a wall-mounted air conditioner according to claim 11, characterized in that, In heating mode, the upper air guide plate (21) and the lower air guide plate (22) are controlled to cooperate to form the second air guiding mode.

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