Ceiling air conditioner and control method thereof

Abstract

The application provides a ceiling type air conditioner and a control method thereof. The ceiling type air conditioner comprises an air conditioner panel and a fan. An air inlet and a plurality of air outlets are formed on the air conditioner panel. The air inlet is in communication with an air inlet side of the fan. Each of the air outlets has an air outlet state in communication with an air outlet side of the fan and an air inlet state in communication with the air inlet side of the fan. A baffle is arranged corresponding to each of the air outlets. Each of the baffles can be driven to switch between an air outlet position and an air inlet position to make the air outlet corresponding to the position in the air outlet state or the air inlet state. A wind guide assembly is arranged in each of the air outlets. The application effectively avoids the phenomenon that the existing technology causes condensation on the baffle due to the leakage of the air flow with low temperature in the closed state of the baffle. Meanwhile, the air inlet amount of the air conditioner is increased, and the air conditioning performance is improved.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to a ceiling-mounted air conditioner and its control method. Background Technology

[0002] Air conditioners are an almost indispensable household appliance in modern life. They can be seen everywhere in residences, shopping malls, restaurants and other places. In order to meet the different needs of different places and users, air conditioners can be divided into wall-mounted units, cabinet units, duct units, ceiling units, and floor-standing units according to their structural forms. Among them, ceiling units can relatively easily realize multi-directional air outlets, so they are widely favored by shopping malls, restaurants and other large spaces.

[0003] Common ceiling-mounted air conditioners, due to their multiple air outlets, can deliver air in multiple directions simultaneously. However, there are scenarios where multi-directional airflow is unnecessary. Currently, most ceiling-mounted air conditioners limit airflow by closing the air guide vane of one of the outlets. Because the smooth opening and closing of the vane needs to be ensured, there are gaps in movement and poor sealing, posing a significant risk of condensation. Patent document CN221076621U designs a guide structure at the air outlet to direct airflow and reduce condensation, but it cannot solve the condensation problem caused by air leakage through gaps after one vane is closed. Patent document CN108151150B can automatically detect the position of a person and adjust the opening of the air guide vanes of other outlets to an anti-condensation position, ensuring comfort while preventing condensation. Summary of the Invention

[0004] Therefore, the present invention provides a joist air conditioner and its control method, which can overcome the technical problem in the related art that the air guide plate with multiple air outlets is in a closed state during operation (that is, the corresponding air outlet is not used and does not produce air) has a large risk of condensation.

[0005] To address the aforementioned problems, this invention provides a ceiling-mounted air conditioner, comprising an air conditioning panel and a fan. The air conditioning panel has an air inlet and multiple air outlets. The air inlet is connected to the air intake side of the fan, and each air outlet has an air outlet state connected to the air outlet side of the fan and an air intake state connected to the air intake side of the fan. A baffle is provided corresponding to each air outlet, and each baffle can be driven to switch between an air outlet position and an air intake position so that the air outlet corresponding to its position is in the air outlet state or the air intake state. Each air outlet is also provided with an air guide component.

[0006] In some embodiments, the air conditioning panel has a partition surrounding the air inlet on the side face near the fan. The partition divides the side face of the air conditioning panel near the fan into a central area and an outer area. The air inlet is located in the central area, and each of the air outlets is located in the outer area. The partition has multiple air inlet passages that can connect the outer area and the central area. Each baffle is assembled on the air conditioning panel and its position corresponds one-to-one with each of the air inlet passages. When the baffle is in the air outlet state, the baffle can block the air inlet passage corresponding to its position.

[0007] In some embodiments, the ceiling-mounted air conditioner further includes a water receiving tray and a heat exchanger. The water receiving tray has a central through hole for setting a guide ring and a water receiving ring groove on the top surface of the water receiving tray. The central through hole corresponds to the position of the air inlet. The heat exchanger is located within the area of ​​the water receiving ring groove. The water receiving tray also has multiple air outlets penetrating its two sides. The position of each air outlet corresponds one-to-one with the position of each air outlet. When the baffle is in the air inlet state, the baffle can block the air outlet corresponding to its position.

[0008] In some embodiments, one end of the baffle is rotatably supported on the partition, and the other end of the baffle is driven to be connected to a baffle rotation motor, which is assembled on the air conditioning panel. The baffle rotation motor is used to drive the baffle to switch between the air inlet state and the air outlet state in a rotating manner; and / or, a sealing baffle is formed on the side of the partition facing the peripheral area, and the sealing baffle is continuously arranged around the edge of the air inlet.

[0009] In some embodiments, the joist air conditioner further includes an air conditioner housing. With reference to the orientation of the joist air conditioner under operating conditions, the air conditioner housing includes a mounting top plate and an annular wall below the mounting top plate. The tops of the fan and the heat exchanger are assembled on the mounting top plate, and the water collection tray is assembled inside the annular wall. The water collection tray is injection molded from foam material, and the air conditioner panel is located below the water collection tray.

[0010] In some embodiments, the air conditioning panel is connected to the annular wall; and / or, a rigid injection-molded layer is formed on the wall surface of the water receiving annular groove.

[0011] In some embodiments, the air inlet is provided with an air inlet grille assembled on the air conditioning panel, and an air inlet filter is provided between the air inlet grille and the air guide ring. The air inlet filter has a central filter part corresponding to the position of the air inlet and an outer filter part arranged around the central filter part. The outer filter part is located on the air inlet path between each of the air inlet outlets and the fan.

[0012] The present invention also provides a control method for the above-described ceiling-mounted air conditioner, comprising the following steps:

[0013] The operating instructions are obtained during the operation of the ceiling-mounted air conditioner.

[0014] When the obtained working instruction is an air outlet closing instruction, determine the number of air outlets of the ceiling air conditioner that are in the air outlet state;

[0015] When the number of air outlets in the air-out state is not less than two, the baffle corresponding to the position of the air outlet in the air-out state is switched from the air-out position to the air-in position, so that the air outlet serves as the air inlet of the fan and is in the air-in position, and the air guide plate of the air guide assembly is controlled to be in the air-in position; or, when the number of air outlets in the air-out state is less than two, the air outlet closing command is not executed and a prompt message is issued.

[0016] In some implementations, when the acquired working instruction is an air conditioner shutdown instruction, each of the baffles is controlled to be in the air intake position, and each of the air guides is controlled to block each of the air outlets; or, when the acquired working instruction is an air conditioner start instruction, the target state of each of the air outlets is determined. When the target state of the air outlet is the air outlet state, the baffles and air guides corresponding to the position are controlled to be in the air outlet position, and when the target state of the air outlet is the air intake state, the baffles and air guides corresponding to the position are controlled to be in the air intake position.

[0017] In some implementations, when the obtained working instruction is an air conditioner shutdown instruction, the position of each of the baffles is determined. When the baffle is in the air outlet position, the air guide plate is first controlled to block each of the air outlets, and then the baffle is controlled to switch from the air outlet position to the air inlet position.

[0018] The ceiling-mounted air conditioner and its control method provided by this invention have the following beneficial effects:

[0019] The air outlet has both an air outlet and an air inlet state, and the baffle has both an air outlet position and an air inlet position. This allows the user to control the air outlet to switch from an air outlet state to an air inlet state when they need to close it. The corresponding air guide plate of the air guide component is in the air inlet position, which effectively avoids the phenomenon of condensation on the air guide plate caused by leakage of low-temperature air outlet air when the air guide plate is closed in the existing technology. At the same time, it can also increase the air intake of the air conditioner and improve the air conditioning performance. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the ceiling-mounted air conditioner according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 Exploded view of the structure of the ceiling-mounted air conditioner;

[0023] Figure 3 yes Figure 2 A top view of the air conditioning panel (with the ceiling-mounted air conditioner in use);

[0024] Figure 4 yes Figure 3 Sectional view of AA;

[0025] Figure 5 yes Figure 2 A bottom view of the air conditioner panel in the room;

[0026] Figure 6 yes Figure 2 A top view of the water receiving tray in the middle;

[0027] Figure 7 yes Figure 2 A bottom view of the water receiving tray in the middle;

[0028] Figure 8 yes Figure 2 A front view of the baffle in the middle;

[0029] Figure 9 yes Figure 8 The left view;

[0030] Figure 10 yes Figure 1 A schematic diagram of the internal structure of the ceiling-mounted air conditioner (the air conditioner panel and some of the components assembled on it are omitted);

[0031] Figure 11 yes Figure 2 A bottom view of the air conditioning panel and some components assembled on it;

[0032] Figure 12 yes Figure 11 A sectional view of BB in the diagram;

[0033] Figure 13 yes Figure 2 A top view of the air conditioning panel and some components assembled on it;

[0034] Figure 14 A schematic diagram of airflow is shown in the ceiling air conditioner of the present invention, in which two air outlets arranged opposite to each other are both in the air-discharging state.

[0035] Figure 15 The diagram shows the airflow in the ceiling air conditioner of the present invention, where one of the two air outlets is in the air outlet state and the other is in the air inlet state.

[0036] Figure 16 This is a logic control diagram of the control method of the present invention.

[0037] The attached figures are labeled as follows:

[0038] 1. Air conditioner panel; 11. Air inlet; 12. Air outlet; 13. Partition; 131. Air inlet overflow port; 132. Sealing baffle; 2. Fan; 20. Guide ring; 21. Fan drive motor; 22. Centrifugal fan blade; 3. Baffle; 31. Baffle rotation motor; 32. Shaft; 33. Flat opening; 4. Water tray; 41. Central through hole; 42. Water ring groove; 43. Air outlet overflow port; 5. Heat exchanger; 6. Air inlet grille; 7. Air inlet filter; 71. Central filter; 72. External filter; 8. Air conditioner housing; 81. Mounting top plate; 82. Annular wall; 9. Air guide assembly; 91. Air guide plate; 92. Sweeping motor. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90° or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0043] See also Figures 1 to 16As shown, according to an embodiment of the present invention, a ceiling-mounted air conditioner is provided, including an air conditioner housing 8. Taking the orientation of the ceiling-mounted air conditioner in its operating state as a reference, the air conditioner housing 8 includes a mounting top plate 81 and an annular wall 82 located below the mounting top plate 81 (in one embodiment, the two are welded together). This objectively forms the air conditioner housing 8 as a barrel structure with an opening facing downwards and an internal accommodating space. An air conditioner panel 1 is provided on the opening of the air conditioner housing 8. The internal accommodating space contains a fan 2, a heat exchanger 5, and a drip tray 4 for collecting condensate generated by the heat exchanger 5. An air inlet 11 and multiple air outlets 12 are formed on the air conditioner panel 1. The air inlet 11 communicates with the air inlet side of the fan 2, and each air outlet 12 has an air outlet state communicating with the air outlet side of the fan 2 and an air inlet state communicating with the air inlet side of the fan 2. Each of the aforementioned air outlets 12 is provided with a baffle 3, and each of the aforementioned baffles 3 can be driven to switch between an air outlet position and an air inlet position so that the air outlet 12 corresponding to its position is in the air outlet state or the air inlet state. Each of the aforementioned air outlets 12 is also provided with an air guide assembly 9, which includes an air guide plate 91 and a sweeping motor 92 for driving the air guide plate 91 to rotate at a preset angle. The aforementioned fan 2 is specifically a centrifugal fan. Specifically, the aforementioned fan 2 includes a centrifugal fan blade 22 and a fan drive motor 21 that can drive the centrifugal fan blade 22 to rotate. It is understood that when the aforementioned fan 2 is running, the airflow is drawn into the air conditioner, flows through the air inlet side of the fan 2 to the heat exchanger 5 located on its air outlet side for heat exchange, and can be further sent out to the outside of the air conditioner through the aforementioned air outlets 12. Generally speaking, the projection of the aforementioned heat exchanger 5 on the horizontal plane is roughly annular, such as a C-type heat exchanger.

[0044] In this technical solution, the air outlet 12 has an air outlet state and an air inlet state, and the baffle 3 has an air outlet position and an air inlet position. In this way, when the user needs to close a certain air outlet 12, the air outlet 12 can be controlled to switch from the air outlet state to the air inlet state. The corresponding air guide plate 91 of the air guide component 9 is in the air inlet position, which effectively avoids the phenomenon of condensation on the air guide plate caused by the leakage of air at a low temperature when the air guide plate is in the closed state in the prior art. At the same time, it can also increase the air intake of the air conditioner and improve the air conditioning performance.

[0045] In some embodiments, the air conditioning panel 1 has a partition 13 surrounding the air inlet 11 on the end face near the fan 2, that is, with Figure 2For reference, the top surface of the air conditioning panel 1 has a partition 13. The partition 13 divides the side of the air conditioning panel 1 near the fan 2 into a central area and an outer area. The air inlet 11 is located in the central area, and each of the air outlets 12 is located in the outer area. The partition 13 has multiple air inlet ports 131 that can connect the outer area and the central area. Each baffle 3 is assembled on the air conditioning panel 1 and its position corresponds to each of the air inlet ports 131. When the baffle 3 is in the air outlet state, the baffle 3 can block the air inlet port 131 corresponding to its position. In a specific embodiment, four air inlets 131 and four air outlets 12 are provided, located in the front, back, left and right directions, to achieve air outlet control in different directions. In a specific embodiment, the partition 13 is annular.

[0046] In this technical solution, by setting a partition 13 on the top side of the air conditioning panel 1, the air intake airflow and the air outlet airflow can be physically isolated. The air intake overflow port 131 and baffle 3 set on the partition 13 corresponding to each air outlet 12 can be selected for the airflow path of the air outlet 12 in different states. The structure is simple.

[0047] In some embodiments, the water receiving tray 4 has a central through hole 41 for setting the flow guide ring 20 and a water receiving ring groove 42 on the top surface of the water receiving tray 4. The central through hole 41 corresponds to the position of the air inlet 11. The heat exchanger 5 is located within the area of ​​the water receiving ring groove 42. The water receiving tray 4 is also provided with a plurality of air outlets 43 penetrating its two sides. The position of each air outlet 43 corresponds one-to-one with the position of each air outlet 12. When the baffle 3 is in the air inlet state, the baffle 3 can block the air outlet 43 corresponding to its position. The aforementioned water receiving ring groove 42 should be connected to a drain pipe (not shown in the figure).

[0048] In this technical solution, the air outlet 43 is constructed on the water receiving tray 4 and is set adjacent to the air inlet 131, which makes the air conditioning structure design more compact.

[0049] In a specific embodiment, the aforementioned air inlet 131 and air outlet 43 are both rectangular, and the corresponding baffle 3 is also rectangular. In order to ensure the sealing effect on the aforementioned two outlets, the length (L2) and width (D2) of the aforementioned baffle 3 should be greater than the length (L1) and width (D1) of the aforementioned air outlet 43 and air inlet 131.

[0050] It is understandable that when the air outlet 12 is in the air outlet state, the baffle 3 is in the air outlet position blocking the air inlet 131, and the air guide plate 91 is in the air outlet position (i.e., the air outlet 12 is open). When the air outlet 12 is in the air inlet state, the baffle 3 is in the air inlet position blocking the air outlet 43, and the air guide plate 91 is in the air inlet position (also the air outlet 12 is open). Depending on the actual situation, the air outlet position and the air inlet position of the air guide plate 91 can be the same or different, as long as the airflow is smooth. Of course, the air outlet 12 also has a dustproof blocking state. In this case, the baffle 3 is in the aforementioned air inlet position, and the air guide plate 91 is in the blocking position blocking the air outlet 12.

[0051] In some embodiments, one end of the baffle 3 is rotatably supported on the partition 13, and the other end of the baffle 3 is driven to connect to a baffle rotation motor 31. The baffle rotation motor 31 is assembled on the air conditioning panel 1, and the baffle rotation motor 31 is used to drive the baffle 3 to switch between the air intake state and the air outlet state in a rotating manner. See details. Figure 8 and Figure 9 As shown, one end of the baffle 3 is provided with a rotating shaft 32 to pivotally connect with the shaft hole on the partition 13, and the other end is formed with a flat opening 33. The flat opening shaft end on the rotating shaft of the aforementioned baffle rotating motor 31 is inserted into the flat opening 33.

[0052] In this technical solution, the baffle 3 switches between its two positions by flipping and rotating, so that the air inlet 131 and the air outlet 43 can share the same baffle 3, which further simplifies the structure and reduces the design cost.

[0053] To ensure smooth switching of the positions of each baffle 3, a movement gap needs to be reserved between the baffle 3 and the wall surface it mates with. However, this movement gap can easily lead to mixing (short circuit) of the inlet and outlet airflows when the outlet 12 is in the outlet state. As a preferred embodiment, a sealing baffle 132 is formed on the side of the partition 13 facing the peripheral area. The sealing baffle 132 is continuously arranged around the edge of the inlet outlet 131. In this way, when the baffle 3 is in the outlet position, the side of the baffle 3 contacts the aforementioned sealing baffle 132 to achieve a reliable seal on the inlet outlet 131. The shape of the aforementioned sealing baffle 132 can be adapted to the specific shape of the inlet outlet 131.

[0054] In some embodiments, the tops of the fan 2 and the heat exchanger 5 are assembled on the mounting plate 81. That is, the weight of the fan 2 and the heat exchanger 5 is ultimately transferred by the mounting plate 81 to the air conditioner mounting carrier, such as the roof inside the ceiling. The drip tray 4 is assembled inside the annular wall 82. In this case, the drip tray 4 does not need to bear the weight of the heat exchanger 5 assembled on it. Therefore, the drip tray 4 is injection molded from foam material. The air conditioner panel 1 is located below the drip tray 4. This can effectively reduce the conduction of the cold energy of the condensate collected on the drip tray 4 to the air conditioner panel 1, further reducing the risk of condensation on the air conditioner panel 1.

[0055] In some embodiments, the air conditioning panel 1 is connected to the annular wall 82, that is, the air conditioning panel 1 is assembled on the annular wall 82 to reduce the force applied to the water tray 4 in the area above it.

[0056] In some embodiments, a rigid injection-molded layer is formed on the wall surface of the water receiving ring groove 42, which can improve the deformation resistance of the foam material and prevent the water receiving pan 4 of the foam material from being damaged by the heat exchanger 5.

[0057] In some embodiments, an air inlet grille 6 assembled on the air conditioning panel 1 is provided at the air inlet 11. An air inlet filter 7 is also provided between the air inlet grille 6 and the air guide ring 20. The air inlet filter 7 has a central filter part 71 corresponding to the position of the air inlet 11 and an outer filter part 72 arranged around the central filter part 71. The outer filter part 72 is located on the air inlet path between each of the air inlet outlets 131 and the fan 2. Specifically, the aforementioned air inlet filter 7 is reliably clamped between the air inlet grille 6 and the bottom end face of the water receiving tray 4, which facilitates the assembly of the air inlet filter 7.

[0058] In this technical solution, by simultaneously setting a central filter 71 corresponding to the position of the air inlet 11 and an outer filter 72 corresponding to the positions of each air inlet 131 on the air inlet filter 7, only one filter is needed, which reduces the number of parts and simplifies the assembly process.

[0059] According to an embodiment of the present invention, a control method for a ceiling-mounted air conditioner as described above is also provided, comprising the following steps:

[0060] The operating instructions are obtained during the operation of the ceiling-mounted air conditioner.

[0061] When the obtained working instruction is an air outlet closing instruction (that is, the air outlet 12 needs to be switched to the air inlet state at this time), determine the number of air outlets 12 of the ceiling air conditioner that are in the air outlet state.

[0062] When there are at least two air outlets 12 in the air-out state, the baffle 3 corresponding to the air outlet 12 in the air-out state is switched from the air-out position to the air-in position, so that the air outlet 12 serves as the air inlet of the fan 2 and is in the air-in position. The air guide plate 91 of the air guide assembly 9 is also switched to the air-in position, that is, one of the air outlets is switched from the air-out state to the air-in state. This achieves the goal of closing the air outlet to prevent condensation while increasing the air intake of the air conditioner and improving the air conditioning performance. Alternatively, when there are fewer than two air outlets 12 in the air-out state (that is, only one air outlet 12 is in the air-out state), the air outlet closing command is not executed to prevent the air conditioner from losing its temperature regulation function. A prompt message is issued to inform the user that the only air outlet cannot be closed because only one air outlet is in the air-out state, and the operation is invalid. The aforementioned prompt message can be displayed on the remote control or read aloud.

[0063] It should be noted that, in a specific embodiment, the user can select one of the four air outlets (front, back, left, right) to close on the remote control. It is understood that the user's intention to close the air outlet is to stop the air supply (airflow) from that outlet. After receiving this working instruction, the air conditioner in this application controls the air outlet to switch from the air supply state to the air intake state to achieve the purpose of stopping the air supply from that outlet. However, the achievement of this purpose also needs to consider the number of air outlets of the air conditioner in the air supply state at this time. When only one air outlet is supplying air, the air outlet is not closed. When at least two air outlets are supplying air, one of the air outlets is controlled to switch from the air supply state to the air intake state.

[0064] In some implementations, when the obtained working instruction is an air conditioner shutdown instruction, each of the baffles 3 is controlled to be in the air intake position, and each of the air guide plates 91 is controlled to block each of the air outlets 12 to prevent external dust, insects, etc. from entering the air conditioner. It should be noted that since an air filter 7 is provided at the air inlet 131, which can achieve the purpose of dust and insect prevention, the initial position of the baffle 3 is set to the air intake position, that is, to block the air outlet 43.

[0065] When the obtained working instruction is an air conditioner start instruction, the target state of each air outlet 12 is determined. When the target state of the air outlet 12 is the air outlet state, the baffle 3 and the air guide plate 91 corresponding to the control position are in the air outlet position. When the target state of the air outlet 12 is the air inlet state, the baffle 3 and the air guide plate 91 corresponding to the control position are in the air inlet position.

[0066] When the obtained working instruction is the air conditioner shutdown instruction, the position of each of the baffles 3 is determined. When the baffle 3 is in the air outlet position, the baffles 91 are first controlled to block each of the air outlets 12, and then the baffles 3 are controlled to switch from the air outlet position to the air inlet position to prevent the baffles 3 and the baffles 91 from interfering with each other during the position switching process.

[0067] See details Figure 16 As shown, after the ceiling-mounted air conditioner of this invention is turned on, the system restores to the state remembered from the last shutdown. If there is no remembered state, it operates according to the default settings, with all air outlets 12 open. When a command to close an air outlet is received, the system determines whether the number of currently open air outlets 12 is greater than or equal to 2. If so, the command to close the air outlet is executed, and the air guide plate 91 of the corresponding air outlet 12 automatically adjusts to the preset optimal air inlet angle, and the corresponding baffle 3 moves to the water tray outlet (i.e., the aforementioned air outlet 43). If not, the current state is maintained, and an alarm sound is issued to ensure that at least one air outlet 12 is open. When a shutdown command is received, all air guide plates 91 are reset (i.e., all air outlets 12 are blocked), and all baffles 3 move to the water tray outlet side, reducing the possibility of dust, insects, etc., entering the air conditioner.

[0068] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A control method for a ceiling-mounted air conditioner, characterized in that, The ceiling air conditioner includes an air conditioning panel (1) and a fan (2). The air conditioning panel (1) has an air inlet (11) and multiple air outlets (12). The air inlet (11) is connected to the air inlet side of the fan (2). Each air outlet (12) has an air outlet state connected to the air outlet side of the fan (2) and an air inlet state connected to the air inlet side of the fan (2). A baffle (3) is provided for each air outlet (12). Each baffle (3) can be driven to switch between an air outlet position and an air inlet position so that the air outlet (12) corresponding to its position is in the air outlet state or the air inlet state. Each air outlet (12) is also provided with an air guide assembly (9). Includes the following steps: The operating instructions are obtained during the operation of the ceiling-mounted air conditioner. When the obtained working instruction is an air outlet closing instruction, determine the number of air outlets (12) of the ceiling air conditioner that are in the air outlet state; When the number of air outlets (12) in the air-out state is not less than two, the baffle (3) corresponding to the position of the air outlet (12) that the user needs to close in the air-out state is switched from the air-out position to the air-in position, so that the air outlet (12) is in the air-in position as the air inlet of the fan (2), and the air guide plate (91) of the air guide assembly (9) is in the air-in position; when the number of air outlets (12) in the air-out state is less than two, the air outlet closing command is not executed and a prompt message is issued.

2. The control method according to claim 1, characterized in that, When the obtained working instruction is an air conditioner shutdown instruction, control each of the baffles (3) to be in the air intake position and control each of the air guides (91) to block each of the air outlets (12); or, when the obtained working instruction is an air conditioner start instruction, determine the target state of each of the air outlets (12). When the target state of the air outlet (12) is the air outlet state, control the baffles (3) and air guides (91) corresponding to the position to be in the air outlet state. When the target state of the air outlet (12) is the air intake state, control the baffles (3) and air guides (91) corresponding to the position to be in the air intake state.

3. The control method according to claim 2, characterized in that, When the obtained working instruction is the air conditioner shutdown instruction, the position of each of the baffles (3) is determined. When the baffle (3) is in the air outlet position, the baffle (91) is first controlled to block each of the air outlets (12), and then the baffle (3) is controlled to switch from the air outlet position to the air inlet position.

4. The control method according to claim 1, characterized in that, The air conditioning panel (1) has a partition (13) surrounding the air inlet (11) on one side of the end face near the fan (2). The partition (13) divides the end face of the air conditioning panel (1) near the fan (2) into a central area and an outer area. The air inlet (11) is located in the central area, and each of the air outlets (12) is located in the outer area. Multiple air inlets (131) that can pass through the outer area and the central area are formed on the partition (13). Each of the baffles (3) is assembled on the air conditioning panel (1) and its position corresponds one-to-one with each of the air inlets (131). When the baffle (3) is in the air outlet position, the baffle (3) can block the air inlet (131) corresponding to its position.

5. The control method according to claim 4, characterized in that, The ceiling air conditioner also includes a water receiving tray (4) and a heat exchanger (5). The water receiving tray (4) has a central through hole (41) for setting a guide ring (20) and a water receiving ring groove (42) on the top surface of the water receiving tray (4). The central through hole (41) corresponds to the position of the air inlet (11). The heat exchanger (5) is located within the range of the water receiving ring groove (42). The water receiving tray (4) also has multiple air outlets (43) that pass through both sides of it. The position of each air outlet (43) corresponds one-to-one with the position of each air outlet (12). When the baffle (3) is in the air inlet position, the baffle (3) can block the air outlet (43) corresponding to its position.

6. The control method according to claim 5, characterized in that, One end of the baffle (3) is rotatably supported on the partition (13), and the other end of the baffle (3) is driven to be connected to a baffle rotation motor (31). The baffle rotation motor (31) is assembled on the air conditioning panel (1). The baffle rotation motor (31) is used to drive the baffle (3) to switch between the air inlet position and the air outlet position in a rotating manner; and / or, a sealing baffle (132) is formed on the side of the partition (13) facing the peripheral area. The sealing baffle (132) is continuously arranged around the edge of the air inlet (131).

7. The control method according to claim 5, characterized in that, The ceiling air conditioner also includes an air conditioner housing (8). Taking the orientation of the ceiling air conditioner under operating conditions as a reference, the air conditioner housing (8) includes a mounting top plate (81) and an annular wall (82) below the mounting top plate (81). The tops of the fan (2) and the heat exchanger (5) are assembled on the mounting top plate (81). The water tray (4) is assembled inside the annular wall (82). The water tray (4) is injection molded from foam material. The air conditioner panel (1) is located below the water tray (4).

8. The control method according to claim 7, characterized in that, The air conditioning panel (1) is connected to the annular wall (82); and / or, a rigid injection-molded layer is formed on the wall surface of the water receiving ring groove (42).

9. The control method according to claim 5, characterized in that, An air inlet grille (6) is provided at the air inlet (11) and is mounted on the air conditioning panel (1). An air inlet filter (7) is also provided between the air inlet grille (6) and the guide ring (20). The air inlet filter (7) has a central filter (71) corresponding to the position of the air inlet (11) and an outer filter (72) arranged around the central filter (71). The outer filter (72) is located on the air inlet path between each air inlet outlet (131) and the fan (2).

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