An indoor unit and an air supply control method of the indoor unit

Abstract

The application provides an indoor unit and an air supply control method of the indoor unit, and belongs to the technical field of air conditioners. The indoor unit comprises an indoor unit main body module and a fresh air module, the indoor unit main body module has a first air outlet, the fresh air module has a second air outlet, two air deflector mechanisms are arranged at the first air outlet and the second air outlet respectively, the air deflector mechanism comprises an air deflector group, the two air deflector groups arranged at the first air outlet and the second air outlet can be controlled to adjust the opening size and the air outlet direction of the first air outlet and the second air outlet respectively, the air outlet of the first air outlet and the air outlet of the second air outlet are mixed, and the parameters of the mixed air can be adjusted, the parameters of the mixed air include flow, temperature and direction. When the indoor unit mixes the air outlet, the shielding area of the air deflector group to the first air outlet and the second air outlet can be reduced when the temperature difference between the fresh air and the heat exchange air is large, airflow dispersion is avoided, and the mixing of the fresh air flow and the heat exchange air flow is more uniform.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to an indoor unit and an air supply method for the indoor unit. Background Technology

[0002] In related technologies, when indoor units with fresh air modules are mixing air, if the temperature difference between the outside environment and the set temperature of the air conditioner is too large, the mixed air blowing onto the user's body surface will cause the user to experience a sensation of being hot and cold, resulting in a poor user experience. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this invention proposes an indoor unit and an air supply control method for the indoor unit.

[0004] The first aspect of this invention provides an indoor unit, comprising: The indoor unit has a main body module and a fresh air module. The main body module has a first air outlet. The fresh air module is located on one side of the main body module and has a second air outlet. There are two air guide plate mechanisms, which are respectively located at the first air outlet and the second air outlet. The air guide plate mechanism includes an air guide plate assembly. The air guide plate assembly located at the first air outlet can be controlled to adjust the opening size and airflow direction of the first air outlet. The air guide plate assembly located at the second air outlet can be controlled to adjust the opening size and airflow direction of the second air outlet, so that the air from the first air outlet and the air from the second air outlet are mixed and the parameters of the mixed air can be adjusted. The parameters of the mixed air include flow rate, temperature and direction.

[0005] In the above technical solution, the air guide plate assembly includes an outer air guide plate and an inner air guide plate. The outer air guide plate and the inner air guide plate extend along the same length direction and at least partially overlap in length. The outer air guide plate and the inner air guide plate are configured to be able to move relative to each other in the length direction to change the total effective length of the outer air guide plate and the inner air guide plate to adjust the flow area of ​​the corresponding air outlet. They can also rotate synchronously around an axis parallel to the length direction to adjust the air outlet direction of the corresponding air outlet.

[0006] In the above technical solution, the outer air guide plate and the inner air guide plate are nested together and the inner air guide plate can move relative to the outer air guide plate along its length direction. The first air outlet has a first air outlet end A and a first air outlet end B along its length direction, and the second air outlet has a second air outlet end A and a second air outlet end B along its length direction, with the first air outlet end A and the second air outlet end A arranged adjacent to each other; wherein When the inner guide plate located at the first air outlet moves relative to the outer guide plate, it has an extended state that moves toward the first air outlet A and a retracted state that moves away from the first air outlet A. When the inner guide plate located at the second air outlet moves relative to the outer guide plate, it has an extended state that moves toward the second air outlet A and a retracted state that moves away from the second air outlet A.

[0007] In the above technical solution, the outer air guide plate can be driven to rotate around an axis parallel to its length direction, and a first limiting structure is provided on the clockwise rotation path of the outer air guide plate, and a second limiting structure is provided on the counterclockwise rotation path of the outer air guide plate. The first limiting structure and the second limiting structure are configured such that the outer air guide plate can rotate clockwise or counterclockwise between the first limiting structure and the second limiting structure. The air guide plate mechanism also includes a threaded rod, which is threadedly engaged with the inner air guide plate. When the threaded rod rotates, the inner air guide plate has at least the following motion states: In the relative motion state, when the outer guide plate is in the first limiting structure position, it drives the threaded rod to rotate clockwise, and the inner guide plate can move relative to the threaded rod in the first direction so that the inner guide plate moves relative to the outer guide plate in the first direction. When the outer guide plate is in the second limiting structure position, it drives the threaded rod to rotate counterclockwise, and the inner guide plate can move relative to the threaded rod in the second direction so that the inner guide plate moves relative to the outer guide plate in the second direction. In the synchronous rotation state, when the outer air guide plate is between the first and second limit structures, it drives the threaded rod to rotate clockwise or counterclockwise, which can drive the outer air guide plate and the inner air guide plate to rotate synchronously clockwise or counterclockwise.

[0008] In the above technical solution, the indoor unit also includes a mounting frame, and the threaded rod is rotatably mounted on the mounting frame. There are two mounting frames, and each air guide plate mechanism corresponds to one mounting frame. The air guide plate mechanism located at the first air outlet is installed at the first air outlet through the corresponding mounting frame, and the air guide plate mechanism located at the second air outlet is installed at the second air outlet through the corresponding mounting frame. Each air guide plate mechanism is equipped with multiple air guide plate groups, which are linked together on the mounting frame. The mounting frame is equipped with a first limiting structure and a second limiting structure, which are set on the rotation path of the outer air guide plate on at least one air guide plate group. The mounting frame is equipped with a connecting rod, on which multiple mounting positions are evenly distributed. Each mounting position has an external air guide plate installed to limit the movement of the external air guide plate along its length.

[0009] In the above technical solution, the mounting frame is provided with a first limiting member, which has a first limiting structure in the clockwise rotation direction of the outer air guide plate and a second limiting structure in the counterclockwise rotation direction of the outer air guide plate; or The mounting frame is provided with a first limiting member and a second limiting member. The first limiting member has a first limiting structure in the clockwise rotation direction of the outer air guide plate, and the second limiting member has a second limiting structure in the counterclockwise rotation direction of the outer air guide plate.

[0010] In the above technical solution, the air guide plate mechanism also includes an elastic element disposed on the inner air guide plate and fixed in position relative to the inner air guide plate. One end of the elastic element presses against the outer air guide plate or the inner air guide plate, and the other end presses against the space between two adjacent threaded grooves on the threaded rod. When the outer air guide plate rotates between the first limiting structure and the second limiting structure, the elastic element is used to limit the movement of the inner air guide plate relative to the threaded rod in the first direction or the second direction.

[0011] In the above technical solution, the elastic element includes a spring and a limiting rod. One end of the limiting rod is pressed against the outer or inner air guide plate by the spring, and the other end is pressed against two adjacent threaded grooves on the threaded rod. When the threaded rod drives the inner and outer air guide plates to rotate synchronously between the first and second limiting structures, the resistance experienced by the inner air guide plate in the rotation direction is less than the resistance between the limiting rod and the threaded rod.

[0012] In the above technical solution, the indoor unit also includes: The first temperature sensor is used to detect the air temperature t1 at the first air outlet. The second temperature sensor is used to detect the air outlet temperature t2 at the second air outlet. The controller is used to calculate the difference Δt between the air temperature t1 at the first air outlet and the air temperature t2 at the second air outlet, and to control the air volume and air angle of the first and second air outlets based on the difference Δt.

[0013] In the above technical solutions, the indoor unit has at least the following air supply modes: In normal air supply mode, the indoor unit main module is turned on, the fresh air module is turned off, and air is discharged from the first air outlet. In the fresh air supply mode, the main module of the indoor unit is turned off, the fresh air module is turned on, and air is discharged from the second air outlet. In the mixed air supply mode, the indoor unit's main module and the fresh air module are turned on simultaneously, and air is discharged from both the first and second air outlets.

[0014] A second aspect of this invention provides an air supply control method for an indoor unit, applied to the aforementioned indoor unit. The air supply control method includes: In the mixed air supply mode, the air outlet temperature t1 at the first air outlet and the air outlet temperature t2 at the second air outlet are obtained and the temperature difference Δt between the two is calculated. Compare the temperature difference Δt with the preset temperature difference; Based on the comparison results, the air volume and / or air angle of the first and second air outlets are controlled.

[0015] In the above technical solution, the preset temperature difference includes a first preset temperature difference △t1 and a second preset temperature difference △t2, wherein △t1 < △t2; Methods for controlling the air volume of the first and second air outlets based on comparison results include: If △t < △t1, control the inner air guide plate at the first air outlet to move a first distance relative to the outer air guide plate, so that the inner air guide plate and the outer air guide plate at the first air outlet have a first overlap length. Control the inner air guide plate at the second air outlet to move a second distance relative to the outer air guide plate, so that the inner air guide plate and the outer air guide plate at the second air outlet have a second overlap length. If △t1<△t<△t2, control the inner guide plate at the first air outlet to move a third distance relative to the outer guide plate, so that the inner guide plate and the outer guide plate at the first air outlet have a third overlap length. Control the inner guide plate at the second air outlet to move a fourth distance relative to the outer guide plate, so that the inner guide plate and the outer guide plate at the second air outlet have a fourth overlap length. If △t>△t2, control the inner guide plate at the first air outlet to move a fifth distance relative to the outer guide plate, so that the inner guide plate and the outer guide plate at the first air outlet have a fifth overlap length. Control the inner guide plate at the second air outlet to move a sixth distance relative to the outer guide plate, so that the inner guide plate and the outer guide plate at the second air outlet have a sixth overlap length. Where the first overlap length < the third overlap length < the fifth overlap length, and the second overlap length < the fourth overlap length < the sixth overlap length.

[0016] In the above technical solution, the method for controlling the air outlet angles of the first and second air outlets based on the comparison results includes: If △t < △t1, control the inner and outer air guide plates at the first air outlet to rotate synchronously so that the first air outlet discharges air obliquely upwards, and control the inner and outer air guide plates at the second air outlet to rotate synchronously so that the second air outlet discharges air obliquely downwards. If △t1<△t<△t2, control the inner and outer air guide plates at the first air outlet to rotate synchronously so that the first air outlet discharges air horizontally, and control the inner and outer air guide plates at the second air outlet to rotate synchronously so that the second air outlet discharges air horizontally. If △t>△t2, control the inner and outer air guide plates at the first air outlet to rotate synchronously so that the first air outlet discharges air at an angle downwards, and control the inner and outer air guide plates at the second air outlet to rotate synchronously so that the second air outlet discharges air at an angle upwards.

[0017] In the above technical solution, the air outlet angle of the first air outlet is the same as that of the second air outlet.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: I. In this embodiment of the invention, adjustable airflow and airflow angle guide vanes are installed at both the first air outlet of the indoor unit's main module and the second air outlet of the fresh air module. When the indoor unit discharges mixed air, the obstruction area of ​​the guide vanes at the first and second air outlets can be reduced when there is a large temperature difference between the fresh air and the heat exchange air. This prevents airflow dispersion and makes the mixing of the fresh air and heat exchange air more uniform, thereby avoiding excessive temperature differences between the hot and cold air blown out from the indoor unit's air outlets, which would affect the user experience. At the same time, the guide vanes can also change the airflow angle of the first and second air outlets, causing the air to flow obliquely upwards, thus preventing the mixed air with a large temperature difference from blowing directly onto the user's body surface. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the indoor unit of the present invention; Figure 2 This is an exploded structural diagram of the air guide plate in an embodiment of the indoor unit of the present invention; Figure 3 This is a cross-sectional view of the air guide plate in an embodiment of the indoor unit of the present invention; Figure 4 This is a schematic diagram of the structure of the indoor unit of the present invention when the air guide plate is installed on the mounting frame; Figure 5 for Figure 3 An enlarged structural diagram at point A in the embodiment; Figure 6 for Figure 2 Enlarged structural diagram at point B in the embodiment; Wherein: 1-Indoor unit main module; 10-First air outlet; 101-First air outlet A; 102-First air outlet B; 2-Fresh air module; 20-Second air outlet; 201-Second air outlet A; 202-Second air outlet B; 11-Outer air guide plate; 12-Inner air guide plate; 121-First end; 122-Second end; 3-Threaded rod; 31-Groove; 4-Mounting frame; 41-Connecting rod; 42-First limiting component; 5-Elastic component; 51-Spring; 52-Limiting rod; Detailed Implementation Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0021] In related technologies, when an indoor unit with a fresh air module mixes air, a large temperature difference between the ambient temperature and the air conditioner's set temperature can cause the mixed air to hit the user's body, resulting in a poor user experience due to the sudden temperature change. In this invention, adjustable airflow guide vanes are installed at both the first air outlet of the indoor unit's main module and the second air outlet of the fresh air module. When the indoor unit mixes airflow, the obstruction area of ​​the guide vanes at the first and second air outlets is reduced when the temperature difference between the fresh air and the heat exchange air is large. This prevents airflow dispersion and ensures a more uniform mixing of the fresh and heat exchange airflows, thus avoiding excessive temperature differences between the hot and cold air blown from the indoor unit's outlets and negatively impacting the user experience. Furthermore, the airflow angles of the first and second air outlets can be adjusted to allow the air to flow upwards at an angle, preventing the mixed air with a large temperature difference from directly hitting the user's body.

[0022] To address the above technical issues, this embodiment proposes an indoor unit and an air supply method for the indoor unit.

[0023] The first aspect of this embodiment provides a method such as Figure 1 The indoor unit shown includes: The indoor unit consists of a main body module 1 and a fresh air module 2. The main body module 1 has a first air outlet 10, which is used to introduce hot or cold air (i.e., heat exchange air) that has undergone heat exchange in the heat exchanger into the room. The fresh air module 2 is located on one side of the main body module 1 and has a second air outlet 20, which is used to introduce fresh air from outside into the room. like Figure 2 As shown, the indoor unit module also includes an air guide plate mechanism. There are two air guide plate mechanisms, which are respectively located at the first air outlet 10 and the second air outlet 20. The air guide plate mechanism includes an air guide plate assembly. The air guide plate assembly located at the first air outlet 10 can be controlled to adjust the opening size and air outlet direction of the first air outlet 10. The air guide plate assembly located at the second air outlet 20 can be controlled to adjust the opening size and air outlet direction of the second air outlet 20, so that the air outlet of the first air outlet 10 and the air outlet of the second air outlet 20 are mixed and the parameters of the mixed air can be adjusted, including flow rate, temperature and direction.

[0024] In this embodiment of the invention, air guide plates are provided at both the first air outlet 10 of the indoor unit main module 1 and the second air outlet 20 of the fresh air module 2, which can adjust the opening size and air direction of the air outlets. When the indoor unit is discharging mixed air, the air guide plates can reduce the area of ​​the first air outlet 10 and the second air outlet 20 that is blocked by the air guide plates when the temperature difference between the outside fresh air and the heat exchange air is large. This avoids the dispersion of airflow at the air outlets (first air outlet 10 and second air outlet 20), making the fresh air and heat exchange airflow mix more evenly. This avoids the large temperature difference of the airflow blown out from the indoor unit air outlet, which affects the user experience. At the same time, the air guide plates can also change the air outlet angle of the first air outlet 10 and the second air outlet 20, so that the first air outlet 10 and the second air outlet 20 dissipate air at an angle upward, thereby preventing the mixed air with a large temperature difference from blowing directly onto the user's body surface.

[0025] In any of the above embodiments, such as 2 and Figure 3 As shown, the air guide plate assembly includes an outer air guide plate 11 and an inner air guide plate 12. The outer air guide plate 11 and the inner air guide plate 12 extend along the same length direction and at least partially overlap in length. The outer air guide plate 11 and the inner air guide plate 12 are configured to be able to move relative to each other in the length direction to change the total effective length of the outer air guide plate 11 and the inner air guide plate 12 to adjust the flow area of ​​the corresponding air outlet. They can also rotate synchronously around an axis parallel to the length direction of the air guide plate assembly to adjust the air outlet direction of the corresponding air outlet.

[0026] It is worth noting that when the outer air guide plate 11 and the inner air guide plate 12 move relative to each other, the outer air guide plate 11 can be driven to move relative to the inner air guide plate 12, or the inner air guide plate 12 can be driven to move relative to the outer air guide plate 11. More specifically, the outer air guide plate 11 and the inner air guide plate 12 can be driven to move relative to each other by driving elements such as cylinders or motors.

[0027] Specifically, the air guide plate assembly at the first air outlet 10 is arranged along the length of the first air outlet 10, and the air guide plate assembly at the second air outlet 20 is arranged along the length of the second air outlet 20. By changing the total effective length of the air guide plate assemblies at the first air outlet 10 and the second air outlet 20, the first air outlet 10 can be partially or completely blocked, and the second air outlet 20 can be partially or completely blocked. When the first air outlet 10 and the second air outlet 20 are not completely blocked by the corresponding air guide plate assemblies, the airflow from the first air outlet 10 and the second air outlet 20 is greater and less likely to disperse, which can improve the airflow heat exchange effect at the two air outlets (first air outlet 10 and second air outlet 20). At the same time, because the airflow is increased, the indoor temperature can quickly reach the temperature range set by the user.

[0028] More specifically, when the airflow temperature at the first air outlet 10 differs significantly from that at the second air outlet 20, the obstruction area of ​​the air guide plate assembly at the corresponding first air outlet 10 and second air outlet 20 can be reduced. This allows the airflow at the first air outlet 10 and second air outlet 20 to mix more easily, thereby improving the heat exchange effect between the two outlets. When the airflow temperature at the first air outlet 10 and the second air outlet 20 differs less, the obstruction area of ​​the air guide plate assembly at the corresponding first air outlet 10 and second air outlet 20 can be increased. In this case, the airflow mixing effect is moderate, but the air guiding effect is better. Furthermore, when the airflow temperature at the first air outlet 10 and the second air outlet 20 differs significantly, the air guiding angle of the air guide plate assembly can be changed so that the airflow from the first air outlet 10 and second air outlet 20 is directed upwards. This prevents the large temperature difference between hot and cold air from directly blowing onto the human body surface, thus avoiding discomfort.

[0029] In any of the above embodiments, such as Figure 1 As shown, the outer air guide plate 11 and the inner air guide plate 12 are nested together, and the inner air guide plate 12 can move relative to the outer air guide plate 11 along its length direction; The first air outlet 10 has a first air outlet end A101 and a first air outlet end B102 along its length, and the second air outlet 20 has a second air outlet end A201 and a second air outlet end B202 along its length, with the first air outlet end A101 and the second air outlet end A201 arranged adjacent to each other; wherein When the inner guide plate 12 located at the first air outlet 10 moves relative to the outer guide plate 11, it has an unfolded state moving towards the first air outlet A101 and a retracted state moving away from the first air outlet A101. When the inner guide plate 12 located at the second air outlet 20 moves relative to the outer guide plate 11, it has an unfolded state moving towards the second air outlet A201 and a retracted state moving away from the second air outlet A201.

[0030] In this embodiment of the invention, by arranging the first air outlet A101 of the first air outlet 10 and the second air outlet A201 of the second air outlet 20 adjacent to each other, and by setting the unfolded state of the inner air guide plate 12 at the first air outlet 10 to face the first air outlet A101 and the unfolded state of the inner air guide plate 12 at the second air outlet 10 to face the second air outlet A201, the airflow mixing effect between the two air outlets (first air outlet 10 and second air outlet 20) can be further improved while reducing the obstruction area of ​​the two air outlets by the two air guide plate groups, thereby further improving the airflow heat exchange efficiency between the first air outlet 10 and the second air outlet 20.

[0031] In any of the above embodiments, such as Figure 2 and Figure 3As shown, the outer air guide plate 11 can be driven to rotate clockwise or counterclockwise around an axis parallel to its length direction; and a first limiting structure is provided on the clockwise rotation path of the outer air guide plate 11, and a second limiting structure is provided on the counterclockwise rotation path of the outer air guide plate 11, wherein the first limiting structure and the second limiting structure are configured such that the outer air guide plate 11 can only rotate clockwise or counterclockwise between the first limiting structure and the second limiting structure; The aforementioned air guide plate mechanism also includes a threaded rod 3, which is threadedly engaged with the inner air guide plate 12. When the threaded rod 3 rotates, the inner air guide plate 12 has at least the following motion states: In the relative motion state, when the outer guide plate 11 is in the first limiting structure position, it drives the threaded rod 3 to rotate clockwise, and the inner guide plate 12 can move relative to the threaded rod 3 in the first direction so that the inner guide plate 12 moves relative to the outer guide plate 11 in the first direction. When the outer guide plate 11 is in the second limiting structure position, it drives the threaded rod 3 to rotate counterclockwise, and the inner guide plate 12 can move relative to the outer threaded rod 3 in the second direction so that the inner guide plate 12 moves relative to the outer guide plate 11 in the second direction. In the synchronous rotation state, when the outer air guide plate is between the first limit structure position and the second limit structure position, the threaded rod 3 is driven to rotate clockwise or counterclockwise, which can drive the inner air guide plate 12 and the outer air guide plate 11 to rotate clockwise or counterclockwise synchronously.

[0032] In this embodiment of the invention, the air guide plate assembly is configured as a nested type, and the inner air guide plate 12 and the threaded rod 3 are connected by a threaded transmission. Simultaneously, a first limiting structure and a second limiting structure are provided in the rotation direction of the outer air guide plate 11. This is because, with this configuration, when the threaded rod 3 rotates, it not only drives the inner air guide plate 12 to move relative to the outer air guide plate 11, but also drives the inner air guide plate 12 and the outer air guide plate 11 to rotate synchronously. Therefore, by using only one driving component (i.e., the threaded rod 3), the air guide plate assembly can achieve both wind-blocking and wind-sweeping effects. Specifically; When the outer air guide plate 11 is in the first limiting structure position, and the threaded rod 3 is driven to rotate clockwise by the motor, the outer air guide plate 11 cannot continue to rotate clockwise because it is restricted by the first limiting structure. Therefore, the inner air guide plate 12 will undergo threaded transmission with the threaded rod 3, and the inner air guide plate 12 will move relative to the threaded rod 3 in the first direction, thereby being able to move relative to the outer air guide plate 11 in the first direction. When the inner air guide plate 12 moves relative to the outer air guide plate 11 in the first direction, the inner air guide plate 12 can block part or all of the air outlets (the first air outlet 10 and the second air outlet 20), and the air guide plate assembly is in the deployed state at this time.

[0033] When the outer air guide plate 11 is in the second limiting structure position, the motor drives the threaded rod 3 to rotate counterclockwise. Since the outer air guide plate 11 is restricted by the second limiting structure and cannot continue to rotate counterclockwise, the inner air guide plate 12 will undergo threaded transmission with the threaded rod 3. The inner air guide plate 12 will move relative to the threaded rod 3 in the second direction, and thus can move relative to the outer air guide plate 11 in the second direction. When the inner air guide plate 12 moves relative to the outer air guide plate 11 in the second direction, the inner air guide plate 12 can open part or all of the air outlets (the first air outlet 10 and the second air outlet 20). At this time, the air guide plate assembly is in a retracted state.

[0034] When the outer air guide plate 11 is positioned between the first and second limiting structures, the motor drives the threaded rod 3 to rotate clockwise or counterclockwise. Since the outer air guide plate 11 is not restricted in its rotation direction by the limiting structures, the rotation of the threaded rod 3 will cause the outer air guide plate 11 to rotate synchronously in either a clockwise or counterclockwise direction via the inner air guide plate 12. This achieves the sweeping effect of the air guide plate assembly.

[0035] It is worth noting that the first and second directions in this embodiment are relative directions defined in the length direction of the air guide plate assembly for ease of understanding the working principle of the present invention. Similarly, the clockwise and counterclockwise directions in this embodiment are also relative directions defined based on the rotation axis of the outer air guide plate 11. In the actual product, when the outer air guide plate 11 is in the first limiting structure position, driving the threaded rod 3 to rotate clockwise can also move the inner air guide plate 12 relative to the threaded rod 3 in the second direction, so that the inner air guide plate 12 moves relative to the outer air guide plate 11 in the second direction. That is, the air guide plate assembly is in a retracted state at this time. When the outer air guide plate 11 is in the second limiting structure position, driving the threaded rod 3 to rotate counterclockwise can also move the inner air guide plate 12 relative to the outer threaded rod 3 in the first direction, so that the inner air guide plate 12 moves relative to the outer air guide plate 11 in the first direction. That is, the air guide plate assembly is in an unfolded state at this time. Specifically, in Figure 3 In the example, the first direction is the direction of movement of the inner air guide plate 12 when the air guide plate group is deployed, and the second direction is the direction of movement of the inner air guide plate 12 when the air guide plate group is retracted.

[0036] In any of the above embodiments, such as Figure 4 As shown, the indoor unit in this embodiment of the invention also includes a mounting frame 4. The threaded rod 3 mentioned above is rotatably mounted on the mounting frame 4. There are two mounting frames, and each air guide plate mechanism corresponds to one mounting frame. The air guide plate mechanism located at the first air outlet is mounted at the first air outlet 10 through the corresponding mounting frame, and the air guide plate mechanism located at the second air outlet 20 is mounted at the second air outlet 20 through the corresponding mounting frame 4. Each of the aforementioned air guide plate mechanisms is provided with multiple sets of air guide plate groups, which are linked together on the mounting frame 4. The mounting frame 4 is provided with the aforementioned first limiting structure and second limiting structure, which are set on the rotation path of the outer air guide plate 11 on at least one air guide plate group. The mounting frame 4 is also provided with a connecting rod 41, on which multiple mounting positions are evenly distributed. Each mounting position has an external air guide plate 11 installed to limit the movement of the external air guide plate 11 along its length direction.

[0037] In this embodiment of the invention, by setting a limiting structure on the rotation path of the outer air guide plate 11 in at least one of the multiple air guide plate groups, the synchronous sweeping effect of multiple air guide plate groups can be achieved, without the need to set multiple limiting structures to restrict the rotation direction of the outer air guide plate 11 on each air guide plate group.

[0038] It should be noted that the linkage between multiple air guide plate assemblies can be achieved through a contact linkage between the plates or through a belt drive. This embodiment will not elaborate on the linkage method between multiple air guide plate assemblies. In this embodiment, by setting the outer air guide plate 11 on the connecting rod 41 to restrict the movement of the outer air guide plate 11 along the first and second directions, the outer air guide plate 11 serves as a reference, thereby preventing the inner air guide plate 12 from causing the outer air guide plate 11 to move along the first or second direction when it moves relative to the outer air guide plate 11. This allows the inner air guide plate 12 to move relative to the outer air guide plate 11.

[0039] It should also be noted that in this embodiment, the connecting rod 41 can be hinged to the mounting frame 4, and the outer air guide plate 11 can be fixed to the mounting frame 4. Of course, the connecting rod 41 can also be fixed to the mounting frame 4, and the outer air guide plate 11 can be hinged to the connecting rod 41. This embodiment does not limit the specific installation method of the connecting rod 41.

[0040] In any of the above embodiments, such as Figure 4 As shown, in this embodiment of the invention, only one first limiting member 42 can be provided on the mounting frame 4. The first limiting member 42 has a first limiting structure in the clockwise rotation direction of the outer air guide plate 11, and a second limiting structure in the counterclockwise rotation direction of the outer air guide plate 11; or In some embodiments not shown, a first limiting member and a second limiting member may also be provided on the mounting frame 4. The first limiting member has a first limiting structure in the clockwise rotation direction of the outer air guide plate 11, and the second limiting member has a second limiting structure in the counterclockwise rotation direction of the outer air guide plate 11.

[0041] In this embodiment of the invention, one or two limiting members are set on the rotation path of the outer air guide plate 11. The limiting members can restrict the rotation direction of the outer air guide plate 11, thereby enabling the inner air guide plate 12 to move relative to the outer air guide plate 11 and drive the outer air guide plate 11 to rotate synchronously without the need for two driving members. That is, the different movement modes of the inner air guide plate 12 can be controlled by a single motor, reducing the number of parts and improving efficiency.

[0042] It is worth noting that the limiting structure formed on the first limiting member and / or the second limiting member of the limiting block in the embodiments of the present invention can be a point formed on the limiting member, a surface formed on the limiting member, or a surface formed on the limiting member. The specific formation method of the limiting structure is not limited in the embodiments of the present invention, as long as it can satisfy the requirement of limiting the outer air guide plate 11 in the rotation direction of the outer air guide plate 11.

[0043] Furthermore, in some embodiments not shown, when the first limiting structure and the second limiting structure are respectively formed on the first limiting member and the second limiting member, the first limiting member and the second limiting member are spaced apart by a distance in the rotation direction of the outer air guide plate 11. The distance between the first and second limiting members in the rotation direction of the outer air guide plate 11 can be adjusted.

[0044] The maximum sweeping angle of the air guide plate assembly can be adjusted by adjusting the distance between the first and second limiting members in the rotation direction of the outer air guide plate 11.

[0045] In any of the above embodiments, such as Figure 5 As shown, the air guide plate mechanism also includes an elastic member 5 disposed on the inner air guide plate 12 and fixed relative to the inner air guide plate 12. One end of the elastic member 5 presses against the outer air guide plate 11 or the inner air guide plate 12, and the other end presses against the two adjacent threaded grooves on the threaded rod 3. When the outer air guide plate 11 rotates between the first limiting structure and the second limiting structure, the elastic element 5 is used to restrict the inner air guide plate 12 from moving relative to the threaded rod 3 in the first direction or the second direction.

[0046] This prevents the inner air guide plate 12 from moving relative to the outer air guide plate 11 when the inner air guide plate 12 and the outer air guide plate 11 rotate synchronously (i.e., when the air guide plate assembly is sweeping). This ensures that the position of the inner air guide plate 12 in the height direction is fixed when the inner air guide plate 12 and the outer air guide plate 11 rotate synchronously, improving the sweeping effect of the air guide plates.

[0047] In any of the above embodiments, such as Figure 5As shown, the elastic element 5 includes a spring 51 and a limiting rod 52. One end of the limiting rod 52 is pressed against the outer air guide plate 11 or the inner air guide plate 12 by the spring 51, and the other end is pressed against two adjacent threaded grooves on the threaded rod 3. When the threaded rod 3 drives the inner guide plate 12 and the outer guide plate 11 to rotate between the first and second limiting structures, the resistance experienced by the inner guide plate 12 in the rotation direction is less than the resistance between the limiting rod 52 and the threaded rod 3. This avoids the situation where the inner guide plate 12 moves relative to the outer guide plate 11 while the outer guide plate 11 and the inner guide plate 12 are rotating between the first and second limiting positions. This ensures that the guide plate assembly does not interfere with each other when moving in both states (expanded and retracted). Specifically, when the outer guide plate 11 and the inner guide plate 12 rotate synchronously, the inner guide plate 12 will not rise or fall relative to the outer guide plate 11, and when the inner guide plate 12 rises or falls relative to the outer guide plate 11, neither the outer guide plate 11 nor the inner guide plate 12 will rotate. This allows for more precise control of the movement state of the guide plate assembly.

[0048] In any of the above embodiments, such as Figure 2 and Figure 6 As shown, the outer air guide plate 11 is a hollow plate-shaped body with an internal cavity, and at least one end of the outer air guide plate 11 in the length direction has an opening that communicates with the cavity. The inner air guide plate 12 has a first end 121 and a second end 122 in the length direction. The first end of the inner air guide plate 12 is installed in the cavity of the outer air guide plate 11 through the opening. The threaded rod 3 is provided in the cavity and is threadedly driven to cooperate with the inner air guide plate 12. The threaded rod 3 has a groove 31 on its side wall, and the groove 31 is located between two adjacent threaded groove sections on the threaded rod 3. The elastic element 5 is located on the inner air guide plate 12 on the side near the first section 121. When the inner air guide plate 12 is driven by the threaded rod 3 to move outward from the cavity of the outer air guide plate 11, the end of the elastic element 5 that presses against the threaded rod 3 can be embedded in the groove 31 on the threaded rod 3.

[0049] Specifically, the groove 31 is provided on the side of the threaded rod 3 near the opening of the outer air guide plate 11. By providing the groove 31 on the side of the threaded rod 3, the inner air guide plate 12 can be prevented from detaching from the outer air guide plate 11. At the same time, since the groove 31 is provided on the side of the threaded rod 3 near the opening of the outer air guide plate 11, the extension of the inner air guide plate 12 relative to the outer air guide plate 11 can be maximized.

[0050] In some embodiments not shown, the outer air guide plate 11 is provided with a plurality of first micro-holes and / or the inner air guide plate 12 is provided with a plurality of second micro-holes; When the inner air guide plate 12 is placed in the outer air guide plate 11, the first micro-hole is blocked by the inner air guide plate 12 and / or the second micro-hole is blocked by the outer air guide plate 11.

[0051] For example, multiple first micro-holes are provided on the outer air guide plate 11, and multiple second micro-holes are provided on the inner air guide plate 12. When the outer air guide plate 11 and the inner air guide plate 12 overlap, the multiple first micro-holes and the multiple second micro-holes are mutually shielded. However, when unfolded, that is, when the inner air guide plate 12 is relative to the outer air guide plate 11 along the […in this embodiment]... Figure 2 When moving in the first direction as shown, it becomes a micro-hole air outlet. In some embodiments not shown, a humidification chamber and a heating chamber may also be provided on the inner air guide plate 12. For example, by using a heating rod on the inner air guide plate 12 and combining it with a humidification function, a better air supply and air guiding effect can be achieved.

[0052] In any of the above embodiments, the indoor unit further includes: The first temperature sensor is used to detect the air outlet temperature t1 at the first air outlet 10; The second temperature sensor is used to detect the air outlet temperature t2 at the second air outlet 20; The controller calculates the temperature difference Δt between the air outlet temperature t1 at the first air outlet 10 and the air outlet temperature t2 at the second air outlet 20, and controls the airflow volume and angle at the first air outlet 10 and the second air outlet 20 based on the temperature difference Δt. Specifically; When the temperature difference Δt between the air outlet 10 and the second air outlet 20 is large, the area of ​​the air guide plate group corresponding to the first air outlet 10 and the second air outlet 20 can be reduced. This avoids the air guide plate group at the air outlet from dispersing the airflow at the air outlet, making it easier for the airflow at the first air outlet 10 and the second air outlet 20 to mix together, thereby improving the heat exchange effect between the two air outlets (first air outlet 10 and second air outlet 20). At the same time, when the airflow temperature at the first air outlet 10 and the airflow temperature at the second air outlet 20 is large, the air guide angle of the air guide plate group can be changed so that the first air outlet 10 and the second air outlet 20 emit air at an angle upward, thereby avoiding the large temperature difference between the hot and cold airflows blowing directly on the human body surface and causing discomfort.

[0053] When the temperature difference Δt between the air outlet 10 and the air outlet 20 is small, the area of ​​the air guide plate covering the air outlet 10 and the air outlet 20 can be increased. At this time, the airflow mixing effect at the two outlets is average, but the air sweeping effect of the air conditioner is better.

[0054] In any of the above embodiments, the indoor unit of the present invention has at least the following air supply modes: In the normal air supply mode, the indoor unit main module 1 is turned on, the fresh air module 2 is turned off, and the first air outlet 10 supplies air. In the fresh air supply mode, the indoor unit main module 1 is turned off, the fresh air module 2 is turned on, and the second air outlet 20 supplies air. In the mixed air supply mode, the indoor unit main module 1 and the fresh air module 2 are turned on at the same time, and both the first air outlet 10 and the second air outlet 20 emit air.

[0055] In any of the above embodiments, such as Figure 1 As shown, the indoor unit in this embodiment of the invention is a wall-mounted indoor unit.

[0056] On the other hand, this embodiment of the invention also provides an air supply control method for an indoor unit, which is applied to the aforementioned indoor unit, wherein the air supply control method includes: In the mixed air supply mode, the air outlet temperature t1 at the first air outlet and the air outlet temperature t2 at the second air outlet are obtained and the temperature difference Δt between the two is calculated. Compare the temperature difference Δt with the preset temperature difference; Based on the comparison results, the air volume and / or air angle of the first air outlet 10 and the second air outlet 20 are controlled.

[0057] In any of the above embodiments, the preset temperature difference includes a first preset temperature difference Δt1 and a second preset temperature difference Δt2, wherein Δt1 < Δt2; The methods for controlling the air volume of the first air outlet 10 and the second air outlet 20 based on the comparison results include: If △t < △t1, control the inner air guide plate 12 at the first air outlet 10 to move a first distance relative to the outer air guide plate 11, so that the inner air guide plate 12 and the outer air guide plate 11 at the first air outlet 10 have a first overlap length. Control the inner air guide plate 12 at the second air outlet 20 to move a second distance relative to the outer air guide plate 11, so that the inner air guide plate 12 and the outer air guide plate 11 at the second air outlet 20 have a second overlap length. If △t1<△t<△t2, control the inner air guide plate 12 at the first air outlet 10 to move a third distance relative to the outer air guide plate 11, so that the inner air guide plate 12 and the outer air guide plate 11 at the first air outlet 10 have a third overlap length. Control the inner air guide plate 12 at the second air outlet 20 to move a fourth distance relative to the outer air guide plate 11, so that the inner air guide plate 12 and the outer air guide plate 11 at the second air outlet 20 have a fourth overlap length. If △t>△t2, control the inner guide plate 12 at the first air outlet 10 to move a fifth distance relative to the outer guide plate 11, so that the inner guide plate 12 and the outer guide plate 11 at the first air outlet 10 have a fifth overlap length. Control the inner guide plate 12 at the second air outlet 20 to move a sixth distance relative to the outer guide plate 11, so that the inner guide plate 12 and the outer guide plate 11 at the second air outlet 20 have a sixth overlap length. Where the first overlap length < the third overlap length < the fifth overlap length, and the second overlap length < the fourth overlap length < the sixth overlap length.

[0058] In any of the above embodiments, the method for controlling the air outlet angle of the first air outlet 10 and the second air outlet 20 based on the comparison result includes: If Δt < Δt1, control the inner air guide plate 12 and the outer air guide plate 11 at the first air outlet 10 to rotate synchronously so that the first air outlet 10 discharges air obliquely upwards, and control the inner air guide plate 12 and the outer air guide plate 11 at the second air outlet 20 to rotate synchronously so that the second air outlet 20 discharges air obliquely downwards; since the temperature difference between the fresh air and the heat exchange air is small at this time, the mixed airflow can be blown directly onto the user's body surface, so that the user's body temperature approaches the set temperature of the air conditioner more quickly, and the user experience is better.

[0059] If Δt1 < Δt < Δt2, control the inner guide plate 12 and outer guide plate 11 at the first air outlet 10 to rotate synchronously so that the first air outlet 10 discharges air horizontally, and control the inner guide plate 12 and outer guide plate 11 at the second air outlet 20 to rotate synchronously so that the second air outlet 20 discharges air horizontally; since the temperature difference between the fresh air and the heat exchange air is not very large at this time, the mixed airflow can be discharged horizontally along the air outlet.

[0060] If Δt > Δt2, the inner guide plate 12 and outer guide plate 11 at the first air outlet 10 are controlled to rotate synchronously so that the first air outlet 10 discharges air at an angle downwards. The inner guide plate 12 and outer guide plate 11 at the second air outlet 20 are controlled to rotate synchronously so that the second air outlet 20 discharges air at an angle upwards. At this time, the temperature difference between the fresh air and the heat exchange air is large. In order to avoid the cold and hot airflows blowing directly onto the user's body surface and causing discomfort, the air outlets can be made to discharge air at an angle upwards, thereby avoiding the mixed air with a large temperature difference blowing directly onto the user's body surface.

[0061] In any of the above embodiments, in order to ensure that the airflow at the first air outlet 10 and the second air outlet 20 has a good heat exchange effect when the air is vented at different angles, in the mixed air outlet mode of the air conditioner, the air outlet angle of the first air outlet 10 and the air outlet angle of the second air outlet 20 are kept the same, so as to achieve a better airflow mixing effect between the two air outlets.

[0062] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0063] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0064] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0065] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An indoor unit, characterized in that, include: The indoor unit main module (1) and the fresh air module (2) are provided. The indoor unit main module (1) has a first air outlet (10). The fresh air module (2) is located on one side of the indoor unit main module (1) and has a second air outlet (20). The air guide plate mechanism is provided in two parts, and the two air guide plate mechanisms are respectively located at the first air outlet (10) and the second air outlet (20); The air guide plate mechanism includes an air guide plate assembly, wherein the air guide plate assembly located at the first air outlet (10) can be controlled to adjust the opening size and air outlet direction of the first air outlet, and the air guide plate assembly located at the second air outlet (20) can be controlled to adjust the opening size and air outlet direction of the second air outlet, so that the air outlet of the first air outlet and the air outlet of the second air outlet are mixed and the parameters of the mixed air can be adjusted, wherein the parameters of the mixed air include flow rate, temperature and direction; The air guide plate assembly includes an outer air guide plate (11) and an inner air guide plate (12). The outer air guide plate (11) and the inner air guide plate (12) extend along the same length direction and at least partially overlap in length. The outer air guide plate (11) and the inner air guide plate (12) are configured to be able to move relative to each other in the length direction to change the total effective length of the outer air guide plate (11) and the inner air guide plate (12) to adjust the flow area of ​​the corresponding air outlet. They can also rotate synchronously around an axis parallel to the length direction to adjust the air outlet direction of the corresponding air outlet.

2. The indoor unit according to claim 1, characterized in that, The outer air guide plate (11) and the inner air guide plate (12) are nested together, and the inner air guide plate (12) can move relative to the outer air guide plate (11) along its length direction; The first air outlet (10) has a first air outlet end A (101) and a first air outlet end B (102) in its length direction, and the second air outlet (20) has a second air outlet end A (201) and a second air outlet end B (202) in its length direction. The first air outlet end A (101) and the second air outlet end A (201) are arranged adjacent to each other. When the inner guide plate (12) located at the first air outlet (10) moves relative to the outer guide plate (11), it has an unfolded state moving towards the first air outlet A (101) and a retracted state moving away from the first air outlet A (101). When the inner guide plate (12) located at the second air outlet (20) moves relative to the outer guide plate (11), it has an unfolded state moving towards the second air outlet A (201) and a retracted state moving away from the second air outlet A (201).

3. The indoor unit according to claim 2, characterized in that, The outer air guide plate can be driven to rotate around an axis parallel to its length direction, and a first limiting structure is provided on the clockwise rotation path of the outer air guide plate, and a second limiting structure is provided on the counterclockwise rotation path of the outer air guide plate. The first limiting structure and the second limiting structure are configured such that the outer air guide plate can rotate clockwise or counterclockwise between the first limiting structure and the second limiting structure. The air guide plate mechanism also includes a threaded rod (3), which is threadedly driven in conjunction with the inner air guide plate (12). When the threaded rod (3) rotates, the inner air guide plate (12) has at least the following motion states: In the relative motion state, when the outer guide plate is in the first limiting structure position, it drives the threaded rod (3) to rotate clockwise, and the inner guide plate (12) can move relative to the threaded rod (3) in the first direction so that the inner guide plate (12) moves relative to the outer guide plate (11) in the first direction. When the outer guide plate is in the second limiting structure position, it drives the threaded rod (3) to rotate counterclockwise, and the inner guide plate (12) can move relative to the threaded rod (3) in the second direction so that the inner guide plate (12) moves relative to the outer guide plate (11) in the second direction. In the synchronous rotation state, when the outer air guide plate (11) is between the first limiting structure and the second limiting structure, it drives the threaded rod (3) to rotate clockwise or counterclockwise, which can drive the outer air guide plate (11) and the inner air guide plate (12) to rotate clockwise or counterclockwise synchronously.

4. The indoor unit according to claim 3, characterized in that, The indoor unit also includes a mounting frame, and the threaded rod is rotatably mounted on the mounting frame. There are two mounting frames, and each air guide plate mechanism corresponds to one mounting frame. The air guide plate mechanism located at the first air outlet is mounted at the first air outlet through the corresponding mounting frame, and the air guide plate mechanism located at the second air outlet is mounted at the second air outlet through the corresponding mounting frame. Each of the air guide plate mechanisms is provided with multiple sets of air guide plate groups, and each of the multiple sets of air guide plate groups can be linked and arranged on the mounting frame (4). The mounting frame is provided with a first limiting structure and a second limiting structure, and the first limiting structure and the second limiting structure are arranged on the rotation path of the outer air guide plate (11) on at least one of the air guide plate groups. The mounting frame (4) is provided with a connecting rod (41), and multiple mounting positions are evenly distributed on the connecting rod (41). Each mounting position is limited to the installation of an external air guide plate (11) to restrict the movement of the external air guide plate (11) along its length direction.

5. The indoor unit according to claim 4, characterized in that, The mounting frame (4) is provided with a first limiting member (42), which has a first limiting structure in the clockwise rotation direction of the outer air guide plate (11) and a second limiting structure in the counterclockwise rotation direction of the outer air guide plate (11); or The mounting frame (4) is provided with a first limiting member and a second limiting member. The first limiting member has a first limiting structure in the clockwise rotation direction of the outer air guide plate (11), and the second limiting member has a second limiting structure in the counterclockwise rotation direction of the outer air guide plate (11).

6. The indoor unit according to claim 5, characterized in that, The air guide plate mechanism also includes an elastic element (5) disposed on the inner air guide plate (12) and fixed in position relative to the inner air guide plate (12). One end of the elastic element (5) presses against the outer air guide plate (11) or the inner air guide plate (12), and the other end presses against the two adjacent threaded grooves on the threaded rod (3). When the outer air guide plate (11) rotates between the first limiting structure and the second limiting structure, the elastic element (5) is used to restrict the inner air guide plate (12) from moving relative to the threaded rod (3) in the first direction or the second direction.

7. The indoor unit according to claim 6, characterized in that, The elastic element (5) includes a spring (51) and a limiting rod (52). One end of the limiting rod (52) is pressed against the outer air guide plate (11) or the inner air guide plate (12) by the spring (51), and the other end is pressed against two adjacent threaded grooves on the threaded rod (3). When the threaded rod (3) drives the inner guide plate (12) and the outer guide plate (11) to rotate synchronously between the first limiting structure and the second limiting structure, the resistance experienced by the inner guide plate (12) in the rotation direction is less than the resistance between the limiting rod (52) and the threaded rod (3).

8. The indoor unit according to any one of claims 1-7, characterized in that, The indoor unit also includes: The first temperature sensor is used to detect the air outlet temperature t1 at the first air outlet (10); The second temperature sensor is used to detect the outlet air temperature t2 at the second air outlet (20); The controller is used to calculate the difference Δt between the air temperature t1 at the first air outlet (10) and the air temperature t2 at the second air outlet (20), and to control the air volume and air angle of the first air outlet (10) and the second air outlet (20) according to the difference Δt.

9. The indoor unit according to claim 8, characterized in that, The indoor unit has at least the following air supply modes: In the normal air supply mode, the indoor unit main module (1) is turned on, the fresh air module (2) is turned off, and the first air outlet (10) supplies air. In the fresh air supply mode, the indoor unit main module (1) is closed, the fresh air module (2) is turned on, and the second air outlet (20) supplies air. In the mixed air supply mode, the indoor unit main module (1) and the fresh air module (2) are turned on at the same time, and the first air outlet (10) and the second air outlet (20) both supply air.

10. A method for controlling the air supply of an indoor unit, applied to the indoor unit as described in claim 9, characterized in that, The air supply control method includes: In the mixed air supply mode, the air outlet temperature t1 at the first air outlet and the air outlet temperature t2 at the second air outlet are obtained and the temperature difference Δt between the two is calculated. Compare the temperature difference Δt with the preset temperature difference; Based on the comparison results, the air volume and / or air angle of the first air outlet and the second air outlet are controlled.

11. The air supply control method according to claim 10, characterized in that, The preset temperature difference includes a first preset temperature difference Δt1 and a second preset temperature difference Δt2, wherein Δt1 < Δt2; The method for controlling the air volume of the first air outlet and the second air outlet based on the comparison results includes: If △t < △t1, control the inner air guide plate at the first air outlet to move a first distance relative to the outer air guide plate, so that the inner air guide plate and the outer air guide plate at the first air outlet have a first overlap length; control the inner air guide plate at the second air outlet to move a second distance relative to the outer air guide plate, so that the inner air guide plate and the outer air guide plate at the second air outlet have a second overlap length. If △t1<△t<△t2, control the inner guide plate at the first air outlet to move a third distance relative to the outer guide plate, so that the inner guide plate and the outer guide plate at the first air outlet have a third overlap length. Control the inner guide plate at the second air outlet to move a fourth distance relative to the outer guide plate, so that the inner guide plate and the outer guide plate at the second air outlet have a fourth overlap length. If △t>△t2, control the inner air guide plate at the first air outlet to move a fifth distance relative to the outer air guide plate, so that the inner air guide plate and the outer air guide plate at the first air outlet have a fifth overlap length; control the inner air guide plate at the second air outlet to move a sixth distance relative to the outer air guide plate, so that the inner air guide plate and the outer air guide plate at the second air outlet have a sixth overlap length. Wherein the first overlap length < the third overlap length < the fifth overlap length, and the second overlap length < the fourth overlap length < the sixth overlap length.

12. The air supply control method according to claim 11, characterized in that, The method for controlling the air outlet angles of the first and second air outlets based on the comparison results includes: If △t < △t1, control the inner and outer air guide plates at the first air outlet to rotate synchronously so that the first air outlet emits air obliquely upward, and control the inner and outer air guide plates at the second air outlet to rotate synchronously so that the second air outlet emits air obliquely downward. If △t1<△t<△t2, control the inner and outer air guide plates at the first air outlet to rotate synchronously so that the first air outlet discharges air horizontally, and control the inner and outer air guide plates at the second air outlet to rotate synchronously so that the second air outlet discharges air horizontally. If Δt>Δt2, control the inner and outer air guide plates at the first air outlet to rotate synchronously so that the first air outlet discharges air at an angle downwards, and control the inner and outer air guide plates at the second air outlet to rotate synchronously so that the second air outlet discharges air at an angle upwards.

13. The air supply control method according to any one of claims 10-12, characterized in that, The air outlet angle of the first air outlet is the same as that of the second air outlet.

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