Duct type air conditioner

By introducing adjustable air guides and diverters into the ducted air conditioner, combined with temperature detection and control modules, a flexible air delivery mode for the ducted air conditioner is achieved, solving the problem of fixed air delivery direction, improving energy efficiency and comfort, and reducing energy consumption and maintenance costs.

CN120991360APending Publication Date: 2025-11-21GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202511260805.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

Existing ducted air conditioners have a fixed air delivery direction, which cannot meet the air delivery needs of multiple spaces. They also lack flexibility in cooling and heating modes, affecting energy efficiency and user experience.

Method used

The design features adjustable air guides and diffusers, combined with a temperature detection and control module, enabling bidirectional and unidirectional airflow modes for the ducted air conditioner. It automatically adjusts the airflow direction and volume according to temperature and user needs.

Benefits of technology

It improves the flexibility and precision of air delivery, optimizes airflow distribution, enhances the energy efficiency and comfort of the air conditioning system, and reduces energy consumption and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a duct type air conditioner which comprises a machine shell, a first air outlet and a second air outlet are formed in the machine shell, the machine shell is provided with a top and a bottom which are oppositely arranged, the first air outlet is formed in the bottom, the machine shell comprises an air outlet side plate located between the top and the bottom, and the second air outlet is formed in the air outlet side plate. The first air outlet and the second air outlet can be selectively opened or closed; and the air guide plate is rotatably arranged at the first air outlet, the air guide plate has a first air guide state for guiding air outlet towards the first preset area and a second air guide state for guiding air outlet towards the second preset area, and the first preset area and the second preset area are located on the two sides of the first air outlet correspondingly. By means of the technical scheme, the technical problem that in the prior art, the air supply direction of an air pipe machine is often fixed, and the air outlet flexibility cannot be met can be solved.
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Description

Technical Field

[0001] This invention relates to the field of duct air conditioning technology, and more specifically, to a duct air conditioning system. Background Technology

[0002] Currently, in the current central air conditioning system, ducted air conditioners are widely used as indoor terminal units, and are generally welcomed by the market due to their good concealment and high space utilization.

[0003] However, existing ducted air conditioning unit designs have some significant limitations, particularly in handling multi-space air supply needs. Specifically, traditional ducted air conditioning units are typically equipped with a single air outlet. This often necessitates the installation of two separate units to achieve comprehensive temperature control when two adjacent areas with different spatial requirements need to be covered simultaneously (e.g., a dining room and a living room). This approach not only increases installation costs but also disrupts the overall aesthetic of the interior design, appearing particularly jarring in modern homes where a continuous air outlet design is preferred.

[0004] Furthermore, existing ducted air conditioners often have a fixed air supply direction in cooling and heating modes, lacking flexibility and unable to automatically adjust the air supply mode according to seasonal changes or user preferences, thus affecting energy efficiency and user experience. Summary of the Invention

[0005] The main objective of this invention is to provide a ducted air conditioner that solves the technical problem that the air supply direction of existing ducted air conditioners is often fixed and cannot meet the requirements of air outlet flexibility.

[0006] To achieve the above objectives, the present invention provides a ductwork unit, comprising:

[0007] The housing has a first air outlet and a second air outlet. The housing has a top and a bottom that are disposed opposite to each other. The first air outlet is disposed at the bottom. The housing includes an air outlet side plate located between the top and the bottom. The second air outlet is disposed on the air outlet side plate. Both the first air outlet and the second air outlet can be selectively opened or closed.

[0008] An air guide plate is rotatably disposed at the first air outlet. The air guide plate has a first air guiding state that guides air out toward a first preset area and a second air guiding state that guides air out toward a second preset area. The first preset area and the second preset area are respectively located on both sides of the first air outlet.

[0009] Furthermore, the duct unit also includes:

[0010] A diverter plate is rotatably disposed at the second air outlet to block or avoid the second air outlet; the rotation angle of the diverter plate is adjustable to adjust the air outlet direction of the second air outlet.

[0011] Furthermore, the housing includes a first housing and a second housing connected in sequence, the first housing forming a heat exchange channel for exchanging heat with air, and the second housing forming an air distribution channel communicating with the heat exchange channel;

[0012] The second housing is provided with the first air outlet and the second air outlet, and the diverter plate is rotatably disposed in the air diversion channel to divert the air in the air diversion channel.

[0013] Furthermore, the air distribution channel is provided with a connecting port that is opposite to and connected to the first air outlet, and the first air outlet is connected to the air distribution channel through the connecting port; the diverter plate has a first closed position, a middle air outlet position, and a second closed position;

[0014] When the diverter is in the first closed position, the diverter blocks the second air outlet;

[0015] When the diverter plate is in the middle air outlet position, the diverter plate is disposed between the second air outlet and the connecting port;

[0016] When the diverter is in the second closed position, the diverter blocks the connection port.

[0017] Furthermore, when the diverter is in the first closed position, the diverter is arranged vertically; and / or,

[0018] When the diffuser is in the middle air outlet position, the diffuser is inclined to the vertical direction; and / or,

[0019] When the diverter is in the second closed position, the diverter is arranged in a horizontal direction.

[0020] Furthermore, the second air outlet directs air towards the second preset area, and the ducted air conditioner has a bidirectional air outlet state; when the ducted air conditioner is in the bidirectional air outlet state, the diverter plate is in the middle air outlet position, and the guide plate is in the first guide state; and / or,

[0021] The ducted air conditioner has a unidirectional air outlet state; when the ducted air conditioner is in the unidirectional air outlet state, the diverter plate is in the second closed position, and the air guide plate blocks the first air outlet; or, when the ducted air conditioner is in the unidirectional air outlet state, the diverter plate is in the first closed position, and the air guide plate is in the first air guiding state or the second air guiding state.

[0022] Furthermore, a first temperature detection element for detecting the temperature of the first preset area is provided in the first preset area, and a second temperature detection element for detecting the temperature of the second preset area is provided in the second preset area; the duct unit further includes:

[0023] The control module is connected to both the first and second temperature sensors via signal connections.

[0024] The first drive module is driven and connected to the air guide plate, and the first drive module is signal-connected to the control module.

[0025] The second drive module is connected to the splitter board and is signal-connected to the control module.

[0026] The control module controls the first drive module and the second drive module based on the first temperature detected by the first temperature sensor, the second temperature detected by the second temperature sensor, and the user-set temperature.

[0027] Furthermore, when the ducted air conditioner is in cooling mode, the control module is configured to:

[0028] When the first temperature is lower than the user-set temperature and the difference between the first temperature and the user-set temperature is greater than the first preset difference, the first drive module and the second drive module are controlled to stop the duct machine from blowing air into the first preset area.

[0029] When the second temperature is lower than the user-set temperature and the difference between the second temperature and the user-set temperature is greater than the first preset difference, the first drive module and the second drive module are controlled to stop the duct machine from blowing air into the second preset area.

[0030] When both the first temperature and the second temperature are greater than or equal to the user-set temperature, or when both the first temperature and the second temperature are less than the user-set temperature and the difference between them is less than or equal to the first preset difference, the first drive module and the second drive module are controlled to make the duct unit in a bidirectional air outlet state that outlets air to both the first preset area and the second preset area.

[0031] Furthermore, a first infrared sensor for detecting user activity in the first preset area is also provided in the first preset area, and a second infrared sensor for detecting user activity in the second preset area is also provided in the second preset area; when the duct unit is in the bidirectional air outlet state, the control module is further configured to:

[0032] When the heat detected by the first infrared sensor is greater than the heat detected by the second infrared sensor, the flow divider is controlled to be in an evenly distributed position so that the air volume of the first air outlet is the same as that of the second air outlet.

[0033] When the heat detected by the first infrared sensor is less than the heat detected by the second infrared sensor, the diverter plate is controlled to be located on the side of the evenly distributed position closer to the first air outlet, so that the air volume of the first air outlet is less than the air volume of the second air outlet.

[0034] When the heat detected by the first infrared sensor is equal to the heat detected by the second infrared sensor, the splitter plate is controlled to be positioned on the side closer to the second air outlet at the evenly distributed position, so that the air volume of the first air outlet is greater than that of the second air outlet.

[0035] Furthermore, when the ducted air conditioner is in heating mode, the control module is configured to:

[0036] When the first temperature is greater than the user-set temperature and the difference between the first temperature and the user-set temperature is greater than the second preset difference, the first drive module and the second drive module are controlled to stop the duct machine from blowing air into the first preset area.

[0037] When the second temperature is greater than the user-set temperature and the difference between the second temperature and the user-set temperature is greater than the second preset difference, the first drive module and the second drive module are controlled to stop the duct machine from blowing air into the second preset area.

[0038] When both the first temperature and the second temperature are less than or equal to the user-set temperature, or when both the first temperature and the second temperature are greater than the user-set temperature and the difference between them is less than or equal to the second preset difference, the first drive module and the second drive module are controlled to make the duct unit in a bidirectional air outlet state that outlets air to both the first preset area and the second preset area.

[0039] Furthermore, the duct unit also includes:

[0040] An electrical box component is connected to the housing and located on the outside of the housing, with at least a portion of the electrical box component located on the side of the second housing.

[0041] Furthermore, at least a portion of the electrical box component is detachably disposed on the side of the second housing; or,

[0042] The electrical box component includes a main box body, a disassembly plate, and electrical components. The main box body is provided with a maintenance port, the disassembly plate is detachably disposed at the maintenance port, and the electrical components are disposed within the main box body.

[0043] Furthermore, the duct unit also includes:

[0044] A fan component, comprising a volute, a fan blade, and a motor, wherein the air outlet of the volute is connected to the housing, the motor drives the fan blade to rotate, and the fan blade is rotatably disposed within the volute;

[0045] A fixed bracket is connected to the housing and located on the outside of the housing. The fixed bracket and the electrical box component are both located on the same side of the housing. The motor is mounted on the fixed bracket.

[0046] Furthermore, the ducted air conditioner is installed using a ceiling-mounted method. The ducted air conditioner also includes a grille, the covering area of ​​which is larger than the air outlet area of ​​the second air outlet. The grille has a first ventilation section and a second ventilation section connected to each other. The first ventilation section is arranged opposite to the second air outlet and is used for air outlet. The second ventilation section is offset from the second air outlet and is used for air return.

[0047] Furthermore, the second housing includes a distribution housing and an outlet housing, the outlet housing is located below the distribution housing, the bottom of the outlet housing is provided with the first outlet, and the side of the distribution housing is provided with the second outlet;

[0048] Wherein, the air outlet housing is detachably connected to the air distribution housing; and / or,

[0049] The end of the air distribution channel away from the air outlet housing has a tapering section, and the flow cross-section of the tapering section gradually decreases along the extension direction from the air outlet housing to the air distribution housing.

[0050] By applying the technical solution of this invention, and introducing adjustable air guides and diffusers, flexible air supply modes are achieved, including bidirectional and unidirectional airflow. This not only automatically adjusts the airflow direction and volume according to the temperature requirements of different areas of the room, but also provides optimized airflow distribution in cooling and heating modes, significantly improving the energy efficiency and comfort of the air conditioning system. Furthermore, the front-side layout and detachable design of the electrical box components facilitate maintenance and repair, reducing maintenance costs. The ceiling-mounted installation method, combined with a large-area grille design, not only saves space and enhances the aesthetics of the interior decoration, but also facilitates return air flow without the need for separate return air vents and grilles. Overall, the ducted air conditioner design of this application not only improves the user experience but also optimizes the installation and maintenance process, providing users with a more efficient, aesthetically pleasing, and flexible air conditioning solution. Attached Figure Description

[0051] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0052] Figure 1 A schematic diagram of the structure of a ductwork unit provided according to an embodiment of the present invention is shown;

[0053] Figure 2 A schematic diagram of a ductwork unit with a portion of the main housing removed, according to an embodiment of the present invention, is shown.

[0054] Figure 3 A schematic diagram of the air outlet of the ducted air conditioner in a bidirectional air outlet state according to an embodiment of the present invention is shown;

[0055] Figure 4 A schematic diagram of the air outlet of the duct air conditioner provided according to an embodiment of the present invention, in a unidirectional air outlet state and with horizontal air outlet, is shown.

[0056] Figure 5 A schematic diagram of the air outlet of the duct air conditioner provided according to an embodiment of the present invention, in a unidirectional air outlet state and in a first air guiding state, is shown.

[0057] Figure 6 A schematic diagram of the air outlet of the ducted air conditioner provided according to an embodiment of the present invention, in a unidirectional air outlet state and in a second air guiding state, is shown.

[0058] The above figures include the following reference numerals:

[0059] 10. Housing;

[0060] 11. First air outlet;

[0061] 12. Second air outlet;

[0062] 13. Air outlet side panel;

[0063] 14. First shell;

[0064] 141. Heat exchange passage;

[0065] 15. Second shell;

[0066] 151. Air distribution duct;

[0067] 152. Connecting port;

[0068] 153. Air distribution shell;

[0069] 154. Air outlet casing;

[0070] 20. Air guide plate;

[0071] 31. First preset area;

[0072] 32. Second preset area;

[0073] 40. Diverter plate;

[0074] 50. Electrical box components;

[0075] 51. Electrical components;

[0076] 52. Disassembly / reassembly panel;

[0077] 53. Main box body;

[0078] 531. Maintenance port;

[0079] 54. Cable guide hole;

[0080] 60. Fan components;

[0081] 61. Snail shell;

[0082] 62. Wind blades;

[0083] 63. Electric motor;

[0084] 70. Fixed bracket;

[0085] 80. Heat exchanger;

[0086] 90. Water tray. Detailed Implementation

[0087] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0088] like Figures 1 to 6As shown, an embodiment of the present invention provides a ducted air conditioner. The ducted air conditioner provided in this embodiment includes a housing 10 and an air guide plate 20. The housing 10 is provided with a first air outlet 11 and a second air outlet 12. The housing 10 has a top and a bottom disposed opposite to each other. The first air outlet 11 is disposed at the bottom. The housing 10 includes an air outlet side plate 13 located between the top and the bottom. The second air outlet 12 is disposed on the air outlet side plate 13. Both the first air outlet 11 and the second air outlet 12 can be selectively opened or closed. The air guide plate 20 is rotatably disposed at the first air outlet 11. The air guide plate 20 has a first air guiding state that guides air out towards a first preset area 31 and a second air guiding state that guides air out towards a second preset area 32. The first preset area 31 and the second preset area 32 are respectively located on both sides of the first air outlet 11.

[0089] The ducted air conditioner provided in this embodiment, by setting a first air outlet 11 and a second air outlet 12 at the bottom and side of the housing 10 respectively, can achieve bidirectional air supply function, meeting the cooling or heating needs of different spaces. The rotatable design of the air guide plate 20 allows the airflow direction to be adjusted according to the temperature requirements of the preset area, thereby achieving precise temperature control. In this way, the technical solution in this embodiment enables a single ducted air conditioner to flexibly adjust the air supply direction, improve air supply efficiency, and reduce energy consumption.

[0090] Specifically, in other embodiments, more complex air supply modes can be achieved by adding more air outlets and air guide plates 20, thereby solving the problem of uneven temperature distribution in specific environments.

[0091] Specifically, the duct air conditioner also includes a diverter plate 40, which is rotatably disposed at the second air outlet 12 to block or avoid the second air outlet 12; the rotation angle of the diverter plate 40 is adjustable to adjust the air outlet direction of the second air outlet 12.

[0092] The installation and adjustable design of the diffuser plate 40 allow the ducted air conditioner to adjust the airflow and direction of the second air outlet 12 according to actual needs. Specifically, by changing the position of the diffuser plate 40, the amount of cooling or heating entering the second preset area 32 can be controlled, achieving precise temperature regulation. The technical solution in this embodiment improves the air delivery flexibility of the ducted air conditioner and can meet the personalized temperature requirements of different areas.

[0093] Specifically, by adding an electric drive mechanism, the angle of the splitter can be automatically adjusted by 40 degrees, thus solving the problem of inconvenience in manual adjustment.

[0094] In this embodiment, the housing 10 includes a first housing 14 and a second housing 15 connected in sequence. The first housing 14 forms a heat exchange channel 141 for air heat exchange, and the second housing 15 forms an air distribution channel 151 communicating with the heat exchange channel 141. The second housing 15 is provided with a first air outlet 11 and a second air outlet 12. The diverter plate 40 is rotatably disposed within the air distribution channel 151 to divert the air within the air distribution channel 151. The separate design of the first housing 14 and the second housing 15 separates the heat exchange and air distribution functions, facilitating concentrated air distribution and guidance after sufficient heat exchange, thus improving heat exchange efficiency and air delivery flexibility. Specifically, the diverter plate 40 within the air distribution channel 151 can adjust the airflow distribution as needed to achieve temperature control of two preset areas. The technical solution in this embodiment optimizes the internal structure of the ducted air conditioner, improves the efficiency of heat exchange and air delivery, and reduces noise. Specifically, the first housing 14 and the second housing 15 are fixedly connected. Specifically, a heat exchanger 80 is installed inside the heat exchange channel 141, and a water receiving tray 90 is installed at the bottom of the heat exchanger 80.

[0095] Specifically, the air distribution channel 151 is provided with a connecting port 152 that is opposite to and communicates with the first air outlet 11. The first air outlet 11 is connected to the air distribution channel 151 through the connecting port 152. The diverter plate 40 has a first closed position, a middle air outlet position, and a second closed position. When the diverter plate 40 is in the first closed position, it blocks the second air outlet 12. When the diverter plate 40 is in the middle air outlet position, it is positioned between the second air outlet 12 and the connecting port 152. When the diverter plate 40 is in the second closed position, it blocks the connecting port 152. The design of the connecting port 152 and the multi-position adjustment of the diverter plate 40 enable precise control of airflow and flexible adjustment of airflow direction. By changing the position of the diverter plate 40, the airflow entering the first air outlet 11 and the second air outlet 12 can be adjusted, thereby achieving temperature regulation of the two preset areas. The technical solution in this embodiment improves the air delivery efficiency and temperature control accuracy of the duct air conditioner, while reducing energy consumption.

[0096] Specifically, when the diverter plate 40 is in the first closed position, the diverter plate 40 is arranged in the vertical direction.

[0097] Specifically, when the diverter plate 40 is in the middle air outlet position, the diverter plate 40 is inclined to the vertical direction.

[0098] Specifically, when the diverter plate 40 is in the second closed position, the diverter plate 40 is arranged in a horizontal direction.

[0099] The vertical, inclined, and horizontal arrangement of the diverter plate 40 ensures airflow distribution and direction control of the ducted air conditioner under different air supply modes. By adjusting the position of the diverter plate 40, the direction and speed of the airflow can be changed, thereby achieving temperature regulation of two preset zones. The technical solution in this embodiment improves the air supply efficiency and temperature control accuracy of the ducted air conditioner while reducing energy consumption.

[0100] Specifically, the airflow direction is changed by the diverter 40, giving it both horizontal and / or vertical directions. The diverter 40 rotates around point Oa between the arcs cd, and can stop at any point within the arc cd as needed. Structurally, the diverter 40 can be driven by a gear set, theoretically achieving stepless speed regulation from 0 to 90°. In the specific structural design of the diverter 40, the gap between it and the sidewall is typically 3-5mm, preventing air leakage between the ends of the arc cd. At point cd, it forms a complete seal with the flange on the inner wall.

[0101] Specifically, the second air outlet 12 directs airflow toward the second preset area 32, and the ducted air conditioner has a bidirectional airflow state. When the ducted air conditioner is in the bidirectional airflow state, the diverter plate 40 is in the middle airflow position, and the air guide plate 20 is in the first airflow guiding state. This structural arrangement facilitates bidirectional airflow, allowing simultaneous airflow to the first preset area 31 and the second preset area 32, increasing the airflow range and enabling simultaneous airflow to two different preset areas through a single ducted air conditioner, thereby improving user comfort.

[0102] Specifically, the ducted air conditioner has a unidirectional air outlet state; when the ducted air conditioner is in the unidirectional air outlet state, the diverter plate 40 is in the second closed position, and the air guide plate 20 blocks the first air outlet 11; or, when the ducted air conditioner is in the unidirectional air outlet state, the diverter plate 40 is in the first closed position, and the air guide plate 20 is in the first air guiding state or the second air guiding state. This configuration facilitates unidirectional concentrated air outlet, allowing for concentrated airflow to the corresponding first preset area 31 or second preset area 32, thereby improving airflow concentration and enabling rapid temperature adjustment of the first preset area 31 or second preset area 32, thus enhancing user comfort.

[0103] Specifically, during the use of the ducted air conditioner, the air outlet status of the ducted air conditioner can be adjusted accordingly to the corresponding bidirectional air outlet status or unidirectional air outlet status.

[0104] In this embodiment, a first temperature detection element for detecting the temperature of the first preset area 31 is provided in the first preset area 31, and a second temperature detection element for detecting the temperature of the second preset area 32 is provided in the second preset area 32. The duct unit further includes a control module, a first drive module, and a second drive module. Both the first and second temperature detection elements are signal-connected to the control module. The first drive module is drive-connected to the air guide plate 20 and signal-connected to the control module. The second drive module is drive-connected to the diverter plate 40 and signal-connected to the control module. The control module controls the first drive module and the second drive module based on the first temperature detected by the first temperature detection element, the second temperature detected by the second temperature detection element, and the user-set temperature. This configuration, by setting the first and second temperature detection elements and the control and drive modules signal-connected to them, achieves intelligent temperature control of the duct unit. In principle, the control module adjusts the positions of the air guide plate 20 and the diverter plate 40 according to the signals from the temperature detection elements to achieve the user-set temperature. In terms of effectiveness, the technical solution in this embodiment improves the temperature control accuracy of the duct air conditioner while reducing energy consumption. In other embodiments, humidity sensors can be added to achieve comprehensive monitoring of the indoor environment and address humidity control needs in specific environments.

[0105] Specifically, when the ducted air conditioner is in cooling mode, the control module is configured to: control the first drive module and the second drive module when the first temperature is lower than the user-set temperature and the difference between the first and second temperatures is greater than a first preset difference, so that the ducted air conditioner stops discharging air into the first preset area 31; control the first drive module and the second drive module when the second temperature is lower than the user-set temperature and the difference between the second and second temperatures is greater than the first preset difference, so that the ducted air conditioner stops discharging air into the second preset area 32; control the first drive module and the second drive module when both the first and second temperatures are greater than or equal to the user-set temperature, or when both the first and second temperatures are lower than the user-set temperature and the difference between the first and second temperatures is less than or equal to the first preset difference, so that the ducted air conditioner is in a bidirectional airflow state discharging air into both the first preset area 31 and the second preset area 32. By analyzing the signals from the temperature sensors, the control module achieves intelligent airflow control of the ducted air conditioner in cooling mode. In principle, the control module adjusts the positions of the air guide plate 20 and the diverter plate 40 based on the signal from the temperature sensor to achieve the user-set temperature. In terms of effectiveness, the technical solution in this embodiment improves the temperature control accuracy of the duct air conditioner while reducing energy consumption.

[0106] Correspondingly, in the above-mentioned cooling mode, the air supply to the first preset area 31 is stopped, indicating that the cooling capacity of the first preset area 31 is sufficient to meet the user's needs. Therefore, the first air outlet 11 needs to be closed. At this time, the second air outlet 12 can still be opened to ensure flat airflow.

[0107] Correspondingly, in the above-mentioned cooling mode, the ducted air conditioner stops blowing air into the second preset area 32, indicating that the cooling capacity of the second preset area 32 is sufficient to meet the user's needs, and therefore the second air outlet 12 needs to be closed. At this time, the first air outlet 11 can still be opened.

[0108] In this embodiment, a first infrared sensor for detecting user activity in the first preset area 31 is also provided in the first preset area 31, and a second infrared sensor for detecting user activity in the second preset area 32 is also provided in the second preset area 32. When the duct unit is in the bidirectional air outlet state, the control module is further configured to: when the heat detected by the first infrared sensor is greater than the heat detected by the second infrared sensor, control the diverter plate 40 to be in an evenly distributed position so that the airflow of the first air outlet 11 is the same as the airflow of the second air outlet 12; when the heat detected by the first infrared sensor is less than the heat detected by the second infrared sensor, control the diverter plate 40 to be located on the side of the evenly distributed position closer to the first air outlet 11 so that the airflow of the first air outlet 11 is less than the airflow of the second air outlet 12; when the heat detected by the first infrared sensor is equal to the heat detected by the second infrared sensor, control the diverter plate 40 to be located on the side of the evenly distributed position closer to the second air outlet 12 so that the airflow of the first air outlet 11 is greater than the airflow of the second air outlet 12. By setting up a first infrared sensor and a second infrared sensor, along with a control module connected to them, intelligent control of the ducted air conditioner's airflow volume is achieved based on user activity. Specifically, the control module adjusts the position of the diffuser plate 40 according to the signals from the infrared sensors to achieve a comfortable temperature in the user's activity area. In terms of effectiveness, the technical solution in this embodiment improves the temperature control accuracy and comfort of the ducted air conditioner while reducing energy consumption.

[0109] Specifically, when the ducted air conditioner is in heating mode, the control module is configured to: control the first drive module and the second drive module when the first temperature is greater than the user-set temperature and the difference between the first and second temperatures is greater than a second preset difference, so that the ducted air conditioner stops discharging air into the first preset area 31; control the first drive module and the second drive module when the second temperature is greater than the user-set temperature and the difference between the second and second temperatures is greater than the second preset difference, so that the ducted air conditioner stops discharging air into the second preset area 32; control the first drive module and the second drive module when both the first and second temperatures are less than or equal to the user-set temperature, or when both the first and second temperatures are greater than the user-set temperature and the difference between the first and second temperatures is less than or equal to the second preset difference, so that the ducted air conditioner is in a bidirectional airflow state discharging air into both the first preset area 31 and the second preset area 32. By analyzing the signals from the temperature detection device, the control module achieves intelligent airflow control of the ducted air conditioner in heating mode. Specifically, the control module adjusts the positions of the air guide plate 20 and the flow divider 40 based on the signal from the temperature sensor to achieve the user-set temperature. In terms of effectiveness, the technical solution in this embodiment improves the temperature control accuracy of the ducted air conditioner while reducing energy consumption. In other embodiments, an air velocity sensor can be added to achieve intelligent control of the air supply speed, addressing air velocity requirements in specific environments.

[0110] Correspondingly, in the above heating mode, the air supply to the first preset area 31 is stopped, indicating that the heat in the first preset area 31 is sufficient to meet the user's needs, and therefore the first air outlet 11 needs to be closed. At this time, the second air outlet 12 can still be opened.

[0111] Correspondingly, in the above heating mode, the duct air conditioner stops blowing air into the second preset area 32, indicating that the heat in the second preset area 32 is sufficient to meet the user's needs, and therefore the second air outlet 12 needs to be closed. At this time, the first air outlet 11 can still be opened.

[0112] In this embodiment, the duct air conditioner further includes an electrical box component 50, which is connected to the housing 10 and located on the outside of the housing 10. At least a portion of the electrical box component 50 is located on the side of the second housing. The external design of the electrical box component simplifies the internal structure of the duct air conditioner and facilitates the maintenance and replacement of the electrical component 50. In principle, the connection between the electrical box component 50 and the housing 10 ensures the normal operation of the duct air conditioner. In terms of effectiveness, the technical solution in this embodiment improves the maintenance convenience of the duct air conditioner while reducing the failure rate. In other embodiments, the electrical box component 50 can also be designed to be detachable, enabling more convenient maintenance and replacement, and addressing maintenance needs in specific environments.

[0113] Specifically, at least a portion of the electrical box component 50 is detachably disposed on the side of the second housing. This detachable design of the electrical box component 50 simplifies the maintenance process of the ducted air conditioner and improves maintenance efficiency. The above arrangement can also be understood as the electrical box component 50 being located on the front side of the first housing 14 along the air outlet direction, facilitating maintenance and replacement.

[0114] Alternatively, the electrical box component 50 includes a main box body 53, a disassembly plate 52, and an electrical component 51. The main box body 53 is provided with a maintenance port 531, the disassembly plate 52 is detachably disposed at the maintenance port 531, and the electrical component 51 is disposed inside the main box body 53. The detachable design of the disassembly plate 52 makes the replacement and maintenance of the electrical component 51 more convenient.

[0115] Specifically, the electrical box component 50 is also provided with a cable pass hole 54 for routing the power supply component 51. The electrical component 51 can be a controller.

[0116] Specifically, the disassembly plate 52 can be a top cover.

[0117] In terms of the effect of the above two electrical box component 50 settings, the technical solution in this embodiment improves the maintenance convenience of the duct air conditioner and reduces the overall failure rate of the duct air conditioner.

[0118] Specifically, the ducted air conditioner further includes a fan component 60 and a fixed support 70. The fan component 60 includes a volute 61, a fan blade 62, and a motor 63. The air outlet of the volute 61 is connected to the housing 10. The motor 63 drives the fan blade 62 to rotate, and the fan blade 62 is rotatably disposed within the volute 61. The fixed support 70 is connected to the housing 10 and located on the outside of the housing 10. The fixed support 70 and the electrical box component 50 are both located on the same side of the housing 10. The motor is mounted on the fixed support 70. The combined design of the volute 61, fan blade 62, and motor of the fan component 60 achieves efficient air delivery of the ducted air conditioner. In principle, the motor 63 drives the fan blade 62 to rotate, and the rotation of the fan blade 62 generates airflow, which is delivered into the housing 10 through the air outlet of the volute 61. In terms of effect, the technical solution in this embodiment improves the air delivery efficiency of the ducted air conditioner while reducing energy consumption. In other embodiments, the air volume adjustment function of the fan component 60 can be added to achieve more precise air supply control and solve the air volume requirements in specific environments.

[0119] Specifically, there are no other obstructions on the outside of the volute 61 of the fan component 60 to improve the return air passage and heat exchange efficiency. In addition, when there are two or more fan blades 62, the motor is located on the side closer to where the electrical box component 50 is installed.

[0120] Specifically, the ducted air conditioner is installed using a ceiling-mounted method. The ducted air conditioner also includes a grille, the covering area of ​​which is larger than the air outlet area of ​​the second air outlet 12. The grille has a first ventilation section and a second ventilation section connected to each other. The first ventilation section is positioned opposite to the second air outlet 12 and is used for air supply; the second ventilation section is offset from the second air outlet 12 and is used for air return. Technically, the ceiling-mounted installation method combined with the grille design achieves aesthetically pleasing installation and efficient air return for the ducted air conditioner. In principle, the design of the first and second ventilation sections of the grille makes the air supply and return paths of the ducted air conditioner more rational, improving the air supply and return efficiency. In terms of effect, the technical solution in this embodiment improves the aesthetics of the ducted air conditioner installation and the efficiency of air supply and return, while reducing energy consumption. In other embodiments, the adjustable function of the grille can be added to achieve more flexible air supply and return control, addressing air supply and return needs in specific environments.

[0121] In this embodiment, the second housing includes a distribution housing 153 and an outlet housing 154. The outlet housing 154 is located below the distribution housing 153. The bottom of the outlet housing 154 is provided with the first air outlet 11, and the side of the distribution housing 153 is provided with the second air outlet 12.

[0122] The air outlet housing 154 is detachably connected to the air distribution housing 153; and / or, the end of the air distribution channel 151 away from the air outlet housing 154 has a tapered section, and the flow cross-section of the tapered section gradually decreases along the extension direction from the air outlet housing 154 to the air distribution housing 153.

[0123] Technically, by designing the second housing 15 as a combination of a distribution housing 153 and an outlet housing 154, efficient air delivery and convenient maintenance of the ducted air conditioner are achieved. In principle, the detachable design of the outlet housing 154 makes maintenance of the ducted air conditioner more convenient; the tapered section design improves the air delivery efficiency of the ducted air conditioner and increases the airflow velocity towards the first outlet 11. In terms of effectiveness, the technical solution in this embodiment improves the air delivery efficiency and maintenance convenience of the ducted air conditioner while reducing energy consumption. In other embodiments, by adding an adjustable angle function to the outlet housing 154, more flexible air delivery direction control can be achieved to address air delivery needs in specific environments.

[0124] Specifically, the tapering section can be understood as the top of the second shell 15 adopting an unequal height design, with a cross-section roughly trapezoidal.

[0125] Specifically, the air distribution housing 153 includes at least a portion of the air outlet side panel 13.

[0126] like Figure 1 As shown, the indoor unit includes a fan assembly 60, a first housing 14, a second housing 15, and an electrical box assembly 50, wherein the electrical box assembly 50 is arranged in front of the heat exchanger cavity along the air outlet direction.

[0127] Preferably, the fan component 60 includes a volute 61, a motor, and fan blades 62, with no casing obstructions on at least the top, front, and rear sides, thus improving the return air passage and heat exchange efficiency. When there are two or more fan blades 62, the motor is located closer to the electrical box.

[0128] like Figure 2 As shown, the return air side of the fan component 60 has at least top and rear return air channels on the unit casing. The unit has a first air outlet 11 and an air outlet casing 154, which is detachable from the air distribution casing 153.

[0129] Preferredly, a large-angle air guide plate 20 is provided on the air outlet housing 154. The air guide plate 20 rotates around point Ob, with an angle range of 0 to 180.

[0130] The ducted air conditioner is ceiling-mounted. This new design allows for front-mounted ceiling air supply and return. Specifically, the length of the front ceiling air supply grille is longer than the unit's air outlet. When the unit is operating, air enters the ceiling through the front ceiling grille, passes through the heat exchanger, and is then exhausted by the fan.

[0131] Preferably, the unit has a diffuser plate 40 at the air outlet, which rotates around point Oa within the arc cd. The diffuser plate 40 can stop at any point within the arc cd according to the cooling capacity requirements of different air outlets.

[0132] like Figure 3 The diagram shown is a schematic of bidirectional airflow.

[0133] Preferably, when there is a large cooling demand in the first preset area 31 and the second preset area 32, the indoor unit uses the diversion plate 40 to divert the cooling air to the first air outlet 11 and the second air outlet 12. At the same time, the air guide plate 20 at the first air outlet 11 rotates at an angle so that the airflow is opposite to that at the second air outlet 12, thus satisfying both spatial areas.

[0134] Preferably, the angle of the diversion plate can be adjusted by 40 degrees according to the actual cooling requirements of the first preset area 31 and the second preset area 32, such as the range of personnel activity and dining, to ensure the cooling requirements are met.

[0135] like Figure 4 As shown, this is a unidirectional horizontal airflow in the second preset zone 32:

[0136] Preferably, when the cooling mode is used, the splitter plate 40 moves to point C and closes the first air outlet 11, at which time the second air outlet 12 is used for horizontal air supply.

[0137] like Figure 5 As shown, the first preset zone 31 has downward airflow and is in swing mode.

[0138] Preferably, at this time, the diverter plate 40 moves to point D and closes the second air outlet 12. At this time, the air guide plate 20 at the first air outlet 11 opens and sends the airflow to the first preset area 31.

[0139] like Figure 6 The image shows the air supply method in heating mode:

[0140] Priority is given that at this time, the diverter plate 40 moves to point D and closes the front air outlet. At this time, the lower air outlet guide plate 20 opens and the airflow is sent to the first preset area 31 and the second preset area 32 by angle control.

[0141] Specifically, using the ducted air conditioner provided in the above embodiments, when the ducted air conditioner is in cooling mode, the control module adjusts the positions of the air guide plate 20 and the diverter plate 40 according to the signals from the first temperature sensor and the second temperature sensor to achieve temperature control of the first preset area 31 and the second preset area 32. When the temperature of the first preset area 31 is lower than the user-set temperature and the difference is greater than the first preset difference, the ducted air conditioner stops supplying air to the first preset area 31; when the temperature of the second preset area 32 is lower than the user-set temperature and the difference is greater than the first preset difference, the ducted air conditioner stops supplying air to the second preset area 32; when the temperatures of both the first preset area 31 and the second preset area 32 reach or exceed the user-set temperature, or the difference between the user-set temperature and the second preset temperature is less than or equal to the first preset difference, the ducted air conditioner is in a bidirectional air outlet state, supplying air to both preset areas. When the ducted air conditioner is in heating mode, the control module adjusts the positions of the air guide plate 20 and the diverter plate 40 according to the signals from the first temperature sensor and the second temperature sensor to achieve temperature control of the first preset area 31 and the second preset area 32. When the temperature of the first preset zone 31 is higher than the user-set temperature and the difference is greater than the second preset difference, the ducted air conditioner stops supplying air to the first preset zone 31; when the temperature of the second preset zone 32 is higher than the user-set temperature and the difference is greater than the second preset difference, the ducted air conditioner stops supplying air to the second preset zone 32; when the temperatures of both the first preset zone 31 and the second preset zone 32 are lower than or equal to the user-set temperature, or the difference between the temperature and the user-set temperature is less than or equal to the second preset difference, the ducted air conditioner is in a bidirectional air supply state, supplying air to both preset zones. Regarding user activity detection, when the heat detected by the first infrared sensor is greater than that detected by the second infrared sensor, the control module controls the diverter plate 40 to be in an evenly distributed position, so that the airflow of the first air outlet 11 is the same as that of the second air outlet 12. When the heat detected by the first infrared sensor is less than that detected by the second infrared sensor, the control module controls the diverter plate 40 to be positioned closer to the first air outlet 11 in the evenly distributed position, so that the airflow of the first air outlet 11 is less than that of the second air outlet 12. When the heat detected by the first infrared sensor is equal to that detected by the second infrared sensor, the control module controls the diverter plate 40 to be positioned closer to the second air outlet 12 in the evenly distributed position, so that the airflow of the first air outlet 11 is greater than that of the second air outlet 12. Through the above working process, the duct air conditioner can achieve intelligent temperature and airflow control, improve air delivery efficiency and comfort, and reduce energy consumption.

[0142] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: a single ducted air conditioner can simultaneously supply air to two opposing spaces, saving costs and resulting in aesthetically pleasing installation; it achieves horizontal air supply for cooling and downward air supply for heating; it eliminates the need for bottom return air, using ceiling return air; and the electrical box is located on the front, allowing for front-side maintenance of the motor bracket.

[0143] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0144] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0145] In the description of this application, 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 usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application 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 application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0146] 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 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0147] 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 cannot be construed as limiting the scope of protection of this application.

[0148] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A ducted air conditioner, characterized in that, include: A housing (10) is provided with a first air outlet (11) and a second air outlet (12). The housing (10) has a top and a bottom that are disposed opposite to each other. The first air outlet (11) is disposed at the bottom. The housing (10) includes an air outlet side plate (13) located between the top and the bottom. The second air outlet (12) is disposed on the air outlet side plate (13). Both the first air outlet (11) and the second air outlet (12) can be selectively opened or closed. The air guide plate (20) is rotatably disposed at the first air outlet (11). The air guide plate (20) has a first air guiding state that guides the air out toward the first preset area (31) and a second air guiding state that guides the air out toward the second preset area (32). The first preset area (31) and the second preset area (32) are respectively located on both sides of the first air outlet (11).

2. The duct air conditioner according to claim 1, characterized in that, The duct unit also includes: A diverter plate (40) is rotatably disposed at the second air outlet (12) to block or avoid the second air outlet (12); the rotation angle of the diverter plate (40) is adjustable to adjust the air outlet direction of the second air outlet (12).

3. The duct air conditioner according to claim 2, characterized in that, The housing (10) includes a first housing (14) and a second housing (15) connected in sequence. The first housing (14) forms a heat exchange channel (141) for exchanging heat with air, and the second housing (15) forms an air distribution channel (151) that communicates with the heat exchange channel (141). The second housing (15) is provided with the first air outlet (11) and the second air outlet (12), and the diverter plate (40) is rotatably disposed in the air diversion channel (151) to divert the air in the air diversion channel (151).

4. The duct air conditioner according to claim 3, characterized in that, The air distribution channel (151) is provided with a connecting port (152) that is opposite to and connected to the first air outlet (11). The first air outlet (11) is connected to the air distribution channel (151) through the connecting port (152). The diverter plate (40) has a first closed position, an intermediate air outlet position, and a second closed position. When the diverter plate (40) is in the first closed position, the diverter plate (40) blocks the second air outlet (12); When the diverter plate (40) is in the middle air outlet position, the diverter plate (40) is disposed between the second air outlet (12) and the connecting port (152); When the diverter plate (40) is in the second closed position, the diverter plate (40) blocks the connection port (152).

5. The duct air conditioner according to claim 4, characterized in that, When the diverter plate (40) is in the first closed position, the diverter plate (40) is arranged in a vertical direction; and / or, When the diverter plate (40) is in the middle air outlet position, the diverter plate (40) is inclined to the vertical direction; and / or, When the diverter plate (40) is in the second closed position, the diverter plate (40) is arranged in the horizontal direction.

6. The duct air conditioner according to claim 4, characterized in that, The second air outlet (12) discharges air towards the second preset area (32), and the duct machine has a bidirectional air outlet state; when the duct machine is in the bidirectional air outlet state, the diverter plate (40) is in the middle air outlet position, and the air guide plate (20) is in the first air guide state. And / or, The ducted air conditioner has a unidirectional air outlet state; when the ducted air conditioner is in the unidirectional air outlet state, the diverter plate (40) is in the second closed position, and the air guide plate (20) blocks the first air outlet (11); or, when the ducted air conditioner is in the unidirectional air outlet state, the diverter plate (40) is in the first closed position, and the air guide plate (20) is in the first air guide state or the second air guide state.

7. The duct air conditioner according to claim 2, characterized in that, The first preset area (31) is provided with a first temperature detection element for detecting the temperature of the first preset area (31), and the second preset area (32) is provided with a second temperature detection element for detecting the temperature of the second preset area (32); the duct machine further includes: The control module is connected to both the first and second temperature sensors via signal connections. The first drive module is driven to be connected to the air guide plate (20), and the first drive module is signal connected to the control module; The second drive module is driven and connected to the splitter board (40), and the second drive module is signal connected to the control module; The control module controls the first drive module and the second drive module based on the first temperature detected by the first temperature sensor, the second temperature detected by the second temperature sensor, and the user-set temperature.

8. The duct air conditioner according to claim 7, characterized in that, When the duct unit is in cooling mode, the control module is configured as follows: When the first temperature is lower than the user-set temperature and the difference between the first temperature and the user-set temperature is greater than the first preset difference, the first drive module and the second drive module are controlled so that the duct machine stops blowing air into the first preset area (31). When the second temperature is less than the user-set temperature and the difference between the second temperature and the user-set temperature is greater than the first preset difference, the first drive module and the second drive module are controlled so that the duct machine stops blowing air into the second preset area (32). When both the first temperature and the second temperature are greater than or equal to the user-set temperature, or when both the first temperature and the second temperature are less than the user-set temperature and the difference between them is less than or equal to the first preset difference, the first drive module and the second drive module are controlled to make the duct unit in a bidirectional air outlet state that outlets air to both the first preset area and the second preset area.

9. The duct air conditioner according to claim 8, characterized in that, The first preset area (31) is further provided with a first infrared sensor for detecting user activity in the first preset area (31), and the second preset area (32) is further provided with a second infrared sensor for detecting user activity in the second preset area (32); when the duct machine is in the bidirectional air outlet state, the control module is further configured to: When the heat detected by the first infrared sensor is greater than the heat detected by the second infrared sensor, the diverter plate (40) is controlled to be in an evenly distributed position so that the air volume of the first air outlet (11) is the same as the air volume of the second air outlet (12). When the heat detected by the first infrared sensor is less than the heat detected by the second infrared sensor, the diverter plate (40) is controlled to be located on the side of the evenly distributed position closer to the first air outlet (11) so that the air volume of the first air outlet (11) is less than the air volume of the second air outlet (12). When the heat detected by the first infrared sensor is equal to the heat detected by the second infrared sensor, the diverter plate (40) is controlled to be positioned on the side closer to the second air outlet (12) in the evenly distributed position, so that the air volume of the first air outlet (11) is greater than the air volume of the second air outlet (12).

10. The duct air conditioner according to claim 7, characterized in that, When the ducted air conditioner is in heating mode, the control module is configured as follows: When the first temperature is greater than the user-set temperature and the difference between the first temperature and the user-set temperature is greater than the second preset difference, the first drive module and the second drive module are controlled so that the duct machine stops blowing air into the first preset area (31). When the second temperature is greater than the user-set temperature and the difference between the second temperature and the user-set temperature is greater than the second preset difference, the first drive module and the second drive module are controlled so that the duct machine stops blowing air into the second preset area (32); When both the first temperature and the second temperature are less than or equal to the user-set temperature, or when both the first temperature and the second temperature are greater than the user-set temperature and the difference between them is less than or equal to the second preset difference, the first drive module and the second drive module are controlled to make the duct unit in a bidirectional air outlet state that outlets air to both the first preset area and the second preset area.

11. The duct air conditioner according to claim 3, characterized in that, The duct unit also includes: An electrical box component (50) is connected to the housing (10) and located on the outside of the housing (10), with at least a portion of the electrical box component (50) located on the side of the second housing (15).

12. The duct air conditioner according to claim 11, characterized in that, At least a portion of the electrical box component (50) is detachably disposed on the side of the second housing (15); or, The electrical box component (50) includes a main box body (53), a disassembly plate (52), and an electrical component (51). The main box body (53) is provided with a maintenance port (531). The disassembly plate (52) is detachably disposed at the maintenance port (531). The electrical component (51) is disposed inside the main box body (53).

13. The duct air conditioner according to claim 11, characterized in that, The duct unit also includes: A fan component (60) includes a volute (61), a fan blade (62), and a motor (63). The air outlet of the volute (61) is connected to the housing (10). The motor (63) drives the fan blade (62) to rotate. The fan blade (62) is rotatably disposed inside the volute (61). A fixed bracket (70) is connected to the housing (10) and located on the outside of the housing (10). The fixed bracket (70) and the electrical box component (50) are both located on the same side of the housing (10). The motor (63) is mounted on the fixed bracket (70).

14. The duct air conditioner according to claim 1, characterized in that, The ducted air conditioner is installed using a ceiling-mounted method. The ducted air conditioner also includes a grille. The covering area of ​​the grille is larger than the air outlet area of ​​the second air outlet (12). The grille has a first ventilation section and a second ventilation section connected to each other. The first ventilation section is arranged opposite to the second air outlet (12) and is used for air outlet. The second ventilation section is offset from the second air outlet (12) and is used for air return.

15. The duct air conditioner according to claim 3, characterized in that, The second housing (15) includes a split housing (153) and an outlet housing (154). The outlet housing (154) is located below the split housing (153). The bottom of the outlet housing (154) is provided with the first air outlet (11), and the side of the split housing (153) is provided with the second air outlet (12). Wherein, the air outlet housing (154) is detachably connected to the air distribution housing (153); and / or, The end of the air distribution channel (151) away from the air outlet housing (154) has a tapered section, and the flow cross section of the tapered section gradually decreases along the extension direction from the air outlet housing (154) to the air distribution housing (153).