Air conditioning device

Abstract

The invention provides an air conditioning device which comprises at least one overhead indoor unit, a plurality of air supply outlets are formed in the overhead indoor unit, and a sensing module is arranged in the overhead indoor unit; the sensing module comprises a plurality of area sensors used for detecting whether people exist in the air-conditioned room or not, and the area sensors are arranged adjacently. The area sensors correspond to the air supply outlets, and detection areas of the area sensors are at least partially overlapped with air supply areas of the air supply outlets; the central sensor is arranged among the plurality of area sensors, and the central sensor is configured to detect whether a person exists below the overhead indoor unit or not; the detection area of the central sensor is not overlapped with the detection areas of the plurality of area sensors, and is partially overlapped with the air supply areas of the plurality of air supply outlets. According to the overhead indoor unit, people below the overhead indoor unit can be detected through the central sensor, and the situation that detection areas of the area sensors are overlapped and misjudgment occurs is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning device. Background Art

[0002] As an important part of intelligent human detection products, human identification positioning and activity detection technology are gaining more and more attention. The most advanced technologies currently used for human target positioning and recognition mainly include image-based human target detection and wireless radio frequency-based positioning and recognition technology. However, the positioning algorithm based on image recognition is too complex, and the equipment is expensive, making it difficult to cope with complex and changing external environments; the positioning technology based on wireless radio frequency is not mature enough and is susceptible to interference from other radio frequencies.

[0003] Most of the existing intelligent human detection products use thermopile infrared sensing technology. A single multi-pixel thermopile infrared sensor can detect changes in a person's position, number of people, and activity. On the ceiling-mounted indoor unit, four area sensors are usually set up, corresponding to each air outlet, and detect the human body in the air-conditioned room in each direction. For example, in the scheme disclosed in the Chinese patent application (CN202709382U), four person detection sensors respectively detect whether there is a person in the blowing area. The problem with this detection method is that if a person happens to be directly below the ceiling-mounted indoor unit, the detection result will appear to be that the person exists in four areas at the same time, resulting in inaccurate detection results. Summary of the invention

[0004] In view of the fact that a user is located right below a ceiling-mounted indoor unit, the design of four person detection sensors may result in the detection result believing that the person exists in four areas at the same time, resulting in an inaccurate detection result. A first aspect of the present invention proposes an air conditioning device.

[0005] The air conditioning device comprises at least one ceiling-mounted indoor unit, the ceiling-mounted indoor unit is provided with a plurality of air outlets, and a sensor module is provided in the ceiling-mounted indoor unit. The sensor module comprises: a plurality of area sensors for detecting whether there is someone in the air-conditioned room, and the plurality of area sensors are arranged adjacent to each other.

[0006] In one or more embodiments of the present application, a plurality of the area sensors are arranged corresponding to a plurality of the air supply outlets, and a detection area of ​​the area sensor at least partially overlaps with an air supplyable area of ​​the air supply outlets.

[0007] In one or more embodiments of the present application, the sensing module also includes: a central sensor, which is arranged between the multiple area sensors, and the central sensor is configured to detect whether there is a person under the ceiling-mounted indoor unit; the detection area of ​​the central sensor does not overlap with the detection areas of the multiple area sensors, and partially overlaps with the air supply areas of the multiple air supply outlets.

[0008] In one or more embodiments of the present application, the plurality of air outlets are respectively provided with an air guide component, and the air guide component is configured to adjust an angle according to whether there is a person in the detection area of ​​the area sensor and the central sensor.

[0009] In one or more embodiments of the present application, when there is a person in the detection area of ​​the central sensor and there is no person in the detection area of ​​the regional sensor, the air guide assembly arranged at one or more air supply outlets is controlled to be in an air supply state so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the central sensor.

[0010] In one or more embodiments of the present application, when there is a person in the detection area of ​​the central sensor and there is a person in the detection area of ​​at least one of the area sensors, the air guide component at the air supply outlet corresponding to the area sensor where there is a person in the detection area is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet overlaps with the detection area of ​​the area sensor and the detection area of ​​the central sensor at the same time; the air guide component at the air supply outlet corresponding to the area sensor where there is no person in the detection area is controlled to be in an avoidance state.

[0011] In one or more embodiments of the present application, when there is no person in the detection area of ​​the central sensor, but there is a person in the detection area of ​​at least one of the regional sensors, the air guide component at the air supply outlet corresponding to the regional sensor where there is a person in the detection area is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the regional sensor; the air guide component at the air supply outlet corresponding to the regional sensor where there is no person in the detection area is controlled to be in an avoidance state.

[0012] In one or more embodiments of the present application, the avoidance state includes a closed state or a state where the air supply port is lower than a set opening.

[0013] In one or more embodiments of the present application, the ceiling-mounted indoor unit is provided with four air outlets which are symmetrically arranged in groups of two.

[0014] In one or more embodiments of the present application, when there is a person in the detection area of ​​the central sensor and there is no person in the detection area of ​​the regional sensor, the air guide components at the two groups of symmetrically arranged air supply outlets are controlled to be in the air supply state in turn, so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the central sensor.

[0015] In one or more embodiments of the present application, when there is a person in the detection area of ​​the central sensor and there is a person in the detection area of ​​one of the area sensors, the air guide component at the air supply outlet corresponding to the area sensor where there is a person in the detection area is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet overlaps with the detection area of ​​the area sensor and the detection area of ​​the central sensor at the same time, and the air guide component at the air supply outlet corresponding to the area sensor where there is no person in the detection area is controlled to be in an avoidance state.

[0016] In one or more embodiments of the present application, when there is no person in the detection area of ​​the central sensor and there is a person in the detection area of ​​at least one of the area sensors, the air guide components at the air supply outlets corresponding to the one or more area sensors where there is no person in the detection area are controlled to be in an air supply state, and the air guide components at the air supply outlets corresponding to the area sensors where there are people in the detection area are controlled to be in an avoidance state, so that the actual air supply area of ​​the corresponding air supply outlet does not overlap with the detection area of ​​the area sensor where there is a person in the detection area.

[0017] In one or more embodiments of the present application, when there is a person in the detection area of ​​the central sensor, the air guide components at all air outlets are controlled to be in an avoidance state so that the actual air supply areas of all air outlets do not overlap with the detection area of ​​the central sensor.

[0018] In one or more embodiments of the present application, when there is no one in the detection area of ​​the area sensor and the detection area of ​​the central sensor and the top-mounted indoor unit is in a working state, timing control is performed; and when the accumulated time reaches a first preset moment, the set temperature is adjusted to the preset temperature to keep the sensor module in a working state; after the set temperature is adjusted to the preset temperature, timing control is performed again, and when the accumulated time reaches a second preset moment, the top-mounted indoor unit is driven to enter a standby state to keep the sensor module in a working state; after driving the top-mounted indoor unit to enter a standby state, timing control is performed again, and when the accumulated time reaches a third preset moment, the top-mounted indoor unit is driven to enter a shutdown state, and the sensor module stops working.

[0019] In one or more embodiments of the present application, the ceiling-mounted indoor unit further includes: a plurality of the supply air vents arranged around the return air vent; a floor temperature sensor for detecting the floor temperature of the air-conditioned room; and a return air temperature sensor for detecting the return air temperature.

[0020] In one or more embodiments of the present application, when the difference between the detection value of the return air temperature sensor and the detection value of the floor temperature sensor is above a set threshold, the room temperature is corrected according to the pre-set floor temperature weight and the return air temperature weight, and the deviation from the target temperature is calculated based on the corrected room temperature; at the same time, if there is someone in the detection area of ​​the central sensor but no one in the detection area of ​​the regional sensor, the air guide components at all air supply outlets are controlled to be in an avoidance state so that the actual air supply areas of all air supply outlets do not overlap with the detection area of ​​the central sensor; if there is no one in the detection area of ​​the central sensor but there is someone in the detection area of ​​at least one of the regional sensors, the air guide components at the air supply outlets corresponding to the regional sensor with someone in the detection area are controlled to be in an avoidance state so that the actual air supply area of ​​the air supply outlet does not overlap with the detection area of ​​the regional sensor with someone in the detection area; if there is no one in the detection area of ​​the central sensor and the detection area of ​​the regional sensor, the air guide components at the air supply outlets are controlled to be in an air supply state so that the actual air supply area of ​​the corresponding air supply outlets overlaps partially with the detection area of ​​the regional sensor and the detection area of ​​the central sensor at the same time.

[0021] In one or more embodiments of the present application, the ceiling-mounted indoor unit further includes: an indoor fan; when the difference between the detection value of the return air temperature sensor and the detection value of the ground temperature sensor is above a set threshold, increasing the rotation speed of the indoor fan.

[0022] In one or more embodiments of the present application, the higher the degree to which the difference between the detection value of the return air temperature sensor and the detection value of the floor temperature sensor deviates from a set threshold, the greater the floor temperature weight.

[0023] In one or more embodiments of the present application, the regional sensor and the central sensor are pyroelectric sensors.

[0024] In one or more embodiments of the present application, the sensing module further includes: a lens portion, which is covered on the outside of the regional sensor and the central sensor, and includes: an edge focusing area, which is arranged corresponding to the regional sensor, and the edge focusing area includes a plurality of concentric rings or wedge-shaped stripes; and a central focusing area, which is arranged corresponding to the central sensor, and the central focusing area includes a plurality of protrusions or pits.

[0025] The second aspect of the present application provides an air-conditioning device, comprising: at least one ceiling-mounted indoor unit, the ceiling-mounted indoor unit is provided with a plurality of air outlets, and a sensor module is provided in the ceiling-mounted indoor unit; the sensor module comprises: a plurality of area sensors for detecting whether there are people in the air-conditioned room, the plurality of area sensors are arranged adjacent to each other; the plurality of area sensors are arranged to be tilted downward and correspond one-to-one to the plurality of air outlets; a central sensor, which is arranged between the plurality of area sensors, the central sensor is arranged vertically downward and is configured to detect whether there are people under the ceiling-mounted indoor unit; and a lens portion, the lens portion is covered on the outside of the area sensor and the central sensor, and comprises: an edge focusing area, the edge focusing area is arranged corresponding to the area sensor, the edge focusing area comprises a plurality of concentric rings or wedge-shaped stripes; and a central focusing area, the central focusing area is arranged corresponding to the central sensor, the central focusing area comprises a plurality of protrusions or pits.

[0026] In one or more embodiments of the present application, the installation height of the sensor module is in the range of 2.7 meters to 3.5 meters. When the installation height of the sensor module is 2.7 meters, the detection diameter of the area sensor is 8.5 meters, the detection radius is 4.25 meters, and the detection angle is 130°. When the installation height of the sensor module is 3.5 meters, the detection diameter of the area sensor is 12 meters, the detection radius is 6 meters, and the detection angle is 130°.

[0027] In one or more embodiments of the present application, when the installation height of the sensor module is 2.7 meters, the detection diameter of the central sensor is 2.8 meters, the detection radius is 1.4 meters, and the detection angle is 70 degrees. When the installation height of the sensor module 115 is 3.5 meters, the detection diameter of the central sensor is 3.92 meters, the detection radius is 1.96 meters, and the detection angle is 70 degrees.

[0028] Through the present invention, a person under the ceiling-mounted indoor unit can be detected by the central sensor, and there will be no overlap of detection areas of the regional sensors, resulting in misjudgment.

[0029] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 A schematic diagram of the structure of an air conditioning device provided by one or more embodiments of the present application;

[0032] Figure 2 A schematic diagram of the structure of an air conditioning device provided by one or more embodiments of the present application;

[0033] Figure 3 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0034] Figure 4 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0035] Figure 5 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0036] Figure 6 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0037] Figure 7 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0038] Figure 8 A schematic diagram of the structure of an air conditioning device provided by one or more embodiments of the present application;

[0039] Fig. 9 A schematic diagram of the structure of an air conditioning device provided by one or more embodiments of the present application;

[0040] Fig.10 A schematic diagram of the structure of an air conditioning device provided by one or more embodiments of the present application;

[0041] Fig.11 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0042] Fig.12 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0043] Fig.13 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0044] Fig.14 A schematic diagram of the structure of a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0045] Fig.15A schematic diagram of a detection area of ​​a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0046] Fig.16 A schematic diagram of a detection area of ​​a sensor module in an air conditioning device provided in one or more embodiments of the present application;

[0047] Fig.17 A schematic diagram of an actual air supply area of ​​an air conditioning device provided in one or more embodiments of the present application;

[0048] Fig.18 A schematic diagram of an actual air supply area of ​​an air conditioning device provided in one or more embodiments of the present application;

[0049] Fig.19 A schematic diagram of an actual air supply area of ​​an air conditioning device provided in one or more embodiments of the present application;

[0050] Fig. 20 A schematic diagram of the structure of a lens portion in an air conditioning device provided in one or more embodiments of the present application;

[0051] Fig.21 A schematic diagram of the structure of a lens portion in an air conditioning device provided in one or more embodiments of the present application;

[0052] Fig. 22 A schematic diagram of the structure of an air conditioning device provided in one or more embodiments of the present application.

[0053] In the figure: 100, air conditioning device; 10, outdoor unit; 11, indoor unit; 11a, indoor unit; 11b, indoor unit; 101, compressor; 102, outdoor heat exchanger; 103, outdoor throttling element; 104a, indoor throttling element; 104b, indoor throttling element; 105, indoor heat exchanger; 105a, indoor heat exchanger; 105b, indoor heat exchanger; 106, outdoor fan; 107, indoor fan; 107a, indoor fan; 107b, indoor fan; 108, gas-liquid separator; 109, gas-side shutoff valve; 110, liquid-side shutoff valve; 111, indoor controller; 111a, indoor controller; 111b, indoor controller; 112, liquid-side General pipe; 113, air side connecting pipe; 114, switching valve; 115, sensor module; 116, central sensor; 117a, area sensor; 117b, area sensor; 117c, area sensor; 117d, area sensor; 118, corner cover; 119, partition element; 120, main body; 121a, air guide assembly; 121c, air guide assembly; 122, air guide assembly; 123, panel; 124a, air supply port; 124b, air supply port; 124c, air supply port; 124d, air supply port; 125, lens part; 125a, edge focusing area; 125b, center focusing area 125b; 126, return air port; 127, ground temperature sensor. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] The terms "first", "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0060] Embodiments of the air conditioning device provided in the present application will be described with reference to the accompanying drawings.

[0061] The air conditioning device 100 is installed in buildings such as apartments, hotels, office buildings, and houses. The air conditioning device 100 can independently perform cooling operation or independently perform heating operation.

[0062] like Figure 1 As shown, the air conditioning device 100 includes an outdoor unit 10, and a liquid-side communication pipe 112 and a gas-side communication pipe 113 connecting the outdoor unit 10 and the indoor unit 11 to form a vapor compression refrigeration cycle. Figure 1As shown, the refrigeration cycle is mainly realized by a refrigerant circuit, in which components such as a compressor 101, a condenser, a throttling element and an evaporator are used. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation to cool or heat the indoor space.

[0063] From a principle perspective, low-temperature, low-pressure refrigerant enters the compressor 101, which compresses it into high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0064] The throttling element expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the throttling device and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 101. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioning device 100 can adjust the temperature of the indoor space.

[0065] The outdoor unit 10 is introduced below. The outdoor unit 10 is set in an outdoor natural environment and is a refrigeration cycle including a compressor 101, a switching valve 114 (usually a four-way valve), an outdoor heat exchanger 102, an outdoor throttling element 103 (usually an electronic expansion valve), a liquid side shutoff valve 110 and a gas side shutoff valve 109. The outdoor unit 10 can perform heating operation or cooling operation on the outdoor side to provide energy for increasing the indoor temperature or reducing the indoor temperature to the indoor unit 11.

[0066] The compressor 101 is used to suck in and compress a low-pressure gas refrigerant into a high-pressure gas refrigerant, and then discharge it. The compressor 101 may be a reciprocating compressor, a screw compressor, a centrifugal compressor, etc. The compressor 101 is driven by a motor, and the speed of the motor may be variably controlled by a frequency converter. The number of compressors 101 may be one or more.

[0067] The switching valve 114 is used to switch the flow direction of the refrigerant between the cooling mode and the heating mode.

[0068] The outdoor heat exchanger 102 is configured to be used as a condenser in cooling operation and as an evaporator in heating operation. The outdoor heat exchanger 102 can perform heat exchange with the air guided by the outdoor fan 106 so that the refrigerant flowing in the outdoor heat exchanger 102 undergoes a phase change (condensation or evaporation). The outdoor fan 106 is driven by a motor, and the speed of the motor can be controlled to change the flow rate of the air heat exchanged with the outdoor heat exchanger 102 by adjusting the speed. The outdoor fan 106 can be an axial flow fan, a cross flow fan or other optional fan types. The outdoor fan 106 is arranged near the outdoor heat exchanger 102.

[0069] The outdoor throttling element 103 (electronic expansion valve) is used to reduce the pressure of the high-pressure refrigerant in the cooling mode and the heating mode.

[0070] The liquid-side shutoff valve 110 and the gas-side shutoff valve 109 are located at the interface connecting the external equipment and the pipeline.

[0071] The outdoor unit 10 is also provided with a gas-liquid separator 108 (liquid storage device). The gas-liquid separator 108 is provided on the suction side of the compressor 101 and is a shell-shaped component for separating and storing the refrigerant into gas and liquid. The gas-liquid separator 108 can store excess refrigerant.

[0072] In the heating mode, a refrigerant circuit for heating operation can be formed in the outdoor unit 10, which is referred to as a heating cycle. The outdoor throttling element 103, the outdoor heat exchanger 102, the switching valve 114 (one path in the four-way valve), the gas-liquid separator 108, the compressor 101 and the switching valve 114 (the other path in the four-way valve) are connected in sequence from the liquid-side connecting pipe 112 to the gas-side connecting pipe 113.

[0073] In the cooling mode, a refrigerant circuit for cooling operation can be formed in the outdoor unit 10, which is referred to as a refrigeration cycle. The direction from the gas-side connecting pipe 113 to the liquid-side connecting pipe 112 is connected in sequence with a switching valve 114 (one path in the four-way valve), a gas-liquid separator 108, a compressor 101, a switching valve 114 (another path in the four-way valve), an outdoor heat exchanger 102 and an outdoor throttling element 103.

[0074] The entire outdoor unit 10 is controlled by an outdoor controller, which is arranged in an electrical box with good sealing performance and heat dissipation function. The outdoor controller includes components such as a processor, a storage unit, an input / output interface, and a communication interface. The processor can be a dedicated processor, a central processing unit (CPU), etc. The processor can access the storage unit to execute instructions or applications stored in the storage unit to realize related functions. The storage unit can include a volatile memory and / or a non-volatile memory. The input / output interface can be connected to various sensors arranged in the outdoor unit 10 to receive the detection values ​​of various sensors arranged in the outdoor unit 10. The input / output interface can also be connected to devices such as a frequency converter, a compressor 101, an outdoor fan 106, a switching valve 114, and an outdoor throttling element 103 to output control instructions generated by the processor to them. The communication interface can support different wireless communication protocols, such as Wi-Fi, Bluetooth, near-field communication, NB-IoT, etc., to communicate with other electronic devices, including but not limited to cloud servers, computers (host computers), smart phones, tablets, PDAs, smart control tools, wearable devices and vehicle-mounted equipment, etc.

[0075] The indoor unit 11 is described below. The indoor unit 11 performs a cooling operation or a heating operation using the energy generated by the outdoor unit 10 to increase the indoor temperature or the energy to decrease the indoor temperature.

[0076] In one or more embodiments of the present application, the indoor unit 11 includes at least one ceiling-mounted indoor unit. The ceiling-mounted indoor unit is a device installed on the ceiling of a room, which can save indoor space and make the indoor space neater and more beautiful.

[0077] In one or more embodiments of the present application, the ceiling-mounted indoor unit includes a substantially rectangular housing, which is composed of a main body 120 and a panel 123, wherein the main body 120 is embedded in the ceiling, and the panel 123 covers the main body 120 and forms air supply ports (124a, 124b, 124c, 124d) and a return air port 126.

[0078] In one or more embodiments of the present application, the return air outlet 126 is located approximately in the center of the panel 123. The return air outlet 126 is provided with a grille and a filter to prevent foreign matter from entering, effectively block dust, fibers and other tiny impurities, avoid affecting air circulation and normal operation of the equipment, and protect internal mechanical equipment from external collision or damage. The air supply outlets (124a, 124b, 124c, 124d) are arranged around the return air outlet 126 located in the center, aiming to achieve uniform air supply from multiple directions to ensure that the indoor air temperature is more uniform and comfortable. Through the multi-directional air supply design, the indoor air can be more evenly delivered to the air-conditioned room to avoid dead corners or uneven air supply. In one or more embodiments of the present application, four air supply outlets (124a, 124b, 124c, 124d) are provided to supply air to four directions of the air-conditioned room respectively. Air guide components are provided at the air supply ports (124a, 124b, 124c, 124d), and the air guide components can rotate under the drive of a motor, thereby changing the angle of air supply.

[0079] In one or more embodiments of the present application, an indoor fan 107 and an indoor heat exchanger 105 are disposed in the main body 120 .

[0080] The indoor fan 107 is used to guide the air in the air-conditioned room from the return air port 126 into the main body 120, and after heat exchange with the indoor heat exchanger 105 in the main body 120, the air is sent into the air-conditioned room through the air supply ports (124a, 124b, 124c, 124d).

[0081] The indoor heat exchanger 105 is used as a condenser in heating operation and as an evaporator in cooling operation. The refrigerant in the indoor heat exchanger 105 exchanges heat with the air guided by the indoor fan 107, so that the refrigerant therein undergoes a phase change (condensation or evaporation).

[0082] An indoor controller 111 is provided in the indoor unit 11. The indoor controller 111 includes components such as a processor, a storage unit, an input / output interface, and a communication interface. The processor may be a dedicated processor, a central processing unit (CPU), etc. The processor may access the storage unit to execute instructions or applications stored in the storage unit to implement related functions. The storage unit may include a volatile memory and / or a non-volatile memory. The input / output interface may be communicatively connected to various sensors provided in the indoor unit 11 to receive detection values ​​of various sensors provided in the indoor unit 11. The communication interface may support different wireless communication protocols, such as Wi-Fi, Bluetooth, etc.

[0083] The indoor controller 111 is communicatively connected to the control terminal, and the control terminal 122 may be a remote controller, a wired controller, or other mobile terminals such as a smart phone, a tablet computer, a computer, a wearable device, and the like.

[0084] The number of indoor units can be one or more, for example Figure 2 As shown, an indoor unit 11a and an indoor unit 11b are provided. The other indoor unit may also be a ceiling-mounted indoor unit, or may adopt other air supply structures, such as a wall-mounted air supply structure, a floor-standing air supply structure, a duct-type air supply structure, etc.; the indoor unit 11b is also provided with components such as an indoor heat exchanger 105b and an indoor fan 107b.

[0085] In one or more embodiments of the present application, when multiple indoor units are provided, the indoor units are also provided with indoor throttling elements (such as Figure 2 The indoor throttling element is configured to reduce the pressure of the refrigerant and expand it, and the opening of the indoor throttling element is adjustable, for example, an electronic expansion valve can be selected.

[0086] like Figure 8 As shown, in one or more embodiments of the present application, the air guide assembly 121a provided at the air outlet 124a can be constructed in the form of an air guide plate, and the air guide plate is connected to an independently controlled motor. Similarly, the air guide assembly ( Figure 8 It is shown in the figure that the air guide assembly 121b) can be constructed in the form of an air guide plate. Each air guide plate is connected to an independent motor, and the rotation of each air guide plate is controlled by an independent motor, so as to realize the independent adjustment of the air supply angle of the air supply port. The air guide plate can work in different positions, such as any position from 1 to 7. When the air guide plate is in section 1, the area of ​​the air supply port closed by the air guide plate is the largest, and the air supply angle is the smallest; when the air guide plate is in section 7, the area of ​​the air supply port closed by the air guide plate is the smallest, and the air supply angle is the largest. Figure 8 In the figure, the working position of the air guide plate is represented by Pn.

[0087] like Fig. 9 and Fig.10 As shown, in one or more embodiments of the present application, the air guide assembly 122 provided at the air outlet 124a may be configured to be rotatable. Fig. 9 and Fig.10 As shown, it includes a first wind guide structure located on the outside and a second wind guide structure located on the inside, one side of the first wind guide structure forms an air supply port, and the first wind guide structure can be constructed as follows Fig. 9 The horizontal air supply mode shown in the figure, as shown in P1, can also be constructed as follows Fig.10 The vertical air supply mode shown, as shown by P2 in the figure, can also work at any angle between the horizontal air supply mode and the vertical air supply mode.

[0088] The following is an introduction to the sensors in the indoor unit.

[0089] In one or more embodiments of the present application, the return air outlet 126 of the ceiling-mounted indoor unit is provided with a return air temperature sensor (not shown).

[0090] In one or more embodiments of the present application, the air supply outlets (124a, 124b, 124c, 124d) of the ceiling-mounted indoor unit may be provided with supply air temperature sensors (not shown).

[0091] In one or more embodiments of the present application, a sensor module 115 is further provided in the ceiling-mounted indoor unit, and the sensor module 115 is provided on the panel 123. For example, Figure 3 and Figure 4 as well as Fig. 22 As shown, it can be located at a corner of the panel 123 , for example, embedded in the corner cover plate 118 of the panel 123 and exposed at the corner cover plate 118 .

[0092] like Figures 3 to 7 As shown, the sensor module 115 includes a plurality of area sensors (117a, 117b, 117c, 117d) for detecting whether there is someone in the air-conditioned room. The plurality of area sensors (117a, 117b, 117c, 117d) are arranged corresponding to the air outlets (124a, 124b, 124c, 124d) of the ceiling-mounted indoor unit. The detection area of ​​the area sensors 117a, 117b, 117c, 117d) at least partially overlaps with the air supply area of ​​the air outlet.

[0093] In addition to the area sensors (117a, 117b, 117c, 117d), the sensor module 115 is further provided with a central sensor 116, which is configured to detect whether there is a person under the ceiling-mounted indoor unit. The plurality of area sensors (117a, 117b, 117c, 117d) are arranged around the central sensor 116, and the detection area of ​​the central sensor 116 does not overlap with the detection areas of the plurality of area sensors (117a, 117b, 117c, 117d), and partially overlaps with the air supply areas of the plurality of air supply ports.

[0094] In one or more embodiments of the present application, the installation height of the sensor module 115 is in the range of 2.7 meters to 3.5 meters. When the installation height of the sensor module 115 is 2.7 meters, the detection diameter of the area sensor (117a, 117b, 117c, 117d) is 8.5 meters, the detection radius is 4.25 meters, and the detection angle is 130°. When the installation height of the sensor module 115 is 3.5 meters, the detection diameter of the area sensor (117a, 117b, 117c, 117d) is 12 meters, the detection radius is 6 meters, and the detection angle is 130°.

[0095] In one or more embodiments of the present application, when the installation height of the sensor module 115 is 2.7 meters, the detection diameter of the central sensor 116 is 2.8 meters, the detection radius is 1.4 meters, and the detection angle is 70 degrees. When the installation height of the sensor module 115 is 3.5 meters, the detection diameter of the central sensor 116 is 3.92 meters, the detection radius is 1.96 meters, and the detection angle is 70 degrees.

[0096] like Fig.15 and Fig.16 As shown, the detection area of ​​the central sensor 116 is roughly conical, with a bottom diameter of 2.8 meters to 3.92 meters, a height of 2.7 meters to 3.5 meters, and a detection angle of 70°. The regional sensors (117a, 117b, 117c, 117d) are a larger cone excluding the detection area of ​​the central sensor 116, with a bottom diameter of 8.5 meters to 12 meters, a height of 2.7 meters to 3.5 meters, and a detection angle of 130°. Taking the installation height of 3.5 meters as an example, the bottom radius of the detection area D1 of the central sensor 116 is 2 meters, and the distance between the detection areas D2a, D2b, D2c and D2d of the regional sensors (117a, 117b, 117c, 117d) is the difference between the bottom radius of the larger cone and the bottom radius of the detection area D1, that is, 4 meters. The four area sensors (117a, 117b, 117c, 117d) can respectively detect whether there are people in the detection areas D2a, D2b, D2c and D2d, realizing long-distance detection, while the central sensor 116 can detect whether there are people in the detection area D1 below. D1, D2a, D2b, D2c and D2d do not overlap with each other.

[0097] When the area of ​​the air-conditioned room is smaller than the bottom diameter, the detection area of ​​the sensor module 115 in the ground direction is as shown in the figure.

[0098] The area sensors (117a, 117b, 117c, 117d) in the sensor module 115 can realize long-distance detection, and the central sensor 116 corresponds to short-distance detection. The detection area of ​​the central sensor 116 and the detection area of ​​the area sensors (117a, 117b, 117c, 117d) do not overlap, thereby preventing people under the indoor unit from being uncertainly detected by any area sensor, or being repeatedly detected by the four area sensors, making it impossible to complete the correct zoning of the area covered by the air-conditioning device. The detection areas D2a, D2b, D2c and D2d of the area sensors (117a, 117b, 117c, 117d) are arranged corresponding to the air supply outlets (124a, 124b, 124c and 124d), and the detection areas of the area sensors (117a, 117b, 117c, 117d) partially or completely overlap with the air supply area of ​​the air supply outlets (124a, 124b, 124c and 124d). At the same time, the detection area of ​​the central sensor partially or completely overlaps with the air supply area of ​​the air supply outlets (124a, 124b, 124c and 124d). A two-layer structure for distinguishing between near and far is realized in each direction. In a variety of intelligent air supply modes, the air supply outlets can realize intelligent air supply, and further can realize more accurate personnel activity monitoring and air-conditioning control, thereby improving the energy efficiency management level and user comfort, and providing comprehensive indoor space management capabilities.

[0099] In one or more embodiments of the present application, the area sensors (117a, 117b, 117c and 117d) are arranged obliquely downward, the central sensor 116 is arranged vertically downward, and the inclination angle of the area sensors (117a, 117b, 117c and 117d) is 40° to 45°. The area sensors (117a, 117b, 117c and 117d) and the central sensor 116 are integrated on the same PCB circuit board.

[0100] like Figures 11 to 14 As shown, in order to allow infrared rays to enter the appropriate partition and ensure that the detection areas of the central sensor and the regional sensor do not overlap, a partition element 119 is also provided. In one or more embodiments of the present application, the partition element has a hemispherical partition chamber, and the central sensor is arranged in the hemispherical partition chamber. In one or more embodiments of the present application, the partition element can also be designed with a flat-topped conical partition chamber, and the central sensor is arranged in the flat-topped conical partition chamber. The partition element is made of a hard material that is opaque.

[0101] If the corner cover 118 is installed at an angle (usually 7° to 12°), the area sensor on the outer side of the panel can be set to tilt downward by 5°, and the area sensor on the inner side can be set to tilt upward by 5° to ensure that the detection area of ​​the area sensor can be accurately divided.

[0102] In one or more embodiments of the present application, the zone sensors ( 117 a , 117 b , 117 c , and 117 d ) and the central sensor 116 are pyroelectric sensors.

[0103] A pyroelectric sensor is a sensor that can detect infrared radiation. It works based on the pyroelectric effect, which is a phenomenon in which a material generates an electric charge when its temperature changes. Pyroelectric sensors are made of thermosensitive materials and have pyroelectric properties, that is, they can generate electric charges when the temperature changes. When these thermosensitive materials are exposed to infrared radiation, their temperature changes. This infrared radiation can be generated by the human body. Due to the pyroelectric properties of the material, temperature changes will cause changes in the distribution of positive and negative charges inside the material. Pyroelectric sensors detect external infrared radiation by sensing changes in tiny charges in the material. When a person enters its detection range, the tiny charge changes generated by the material will be detected by the sensor. After receiving this change, the pyroelectric sensor will generate a corresponding electrical signal to realize human body detection. In other words, it can detect when the temperature changes, but cannot detect when there is no temperature change, that is, no movement or action.

[0104] In one embodiment of the present application, after the pyroelectric sensor detects a human body movement signal, it outputs a level signal (pulse signal) to the processor, for example, a high level signal to the processor. The processor is integrated with the regional sensor and the central sensor on the same PCB circuit board.

[0105] The area sensor and the central sensor integrated on the same PCB circuit board are provided with a lens portion 125 on the outside. The lens portion 125 is used to enhance the sensing capability of the infrared radiation of the area sensor and the central sensor, and enables them to more accurately detect the presence of a human body or other heat sources. The lens portion 125 can focus the infrared radiation and concentrate it to the sensing area of ​​the sensor, thereby improving the sensitivity of the sensor. The lens portion 125 is a Fresnel lens.

[0106] like Fig.21 and Fig. 22 As shown, the lens portion 125 includes an edge focusing area 125a and a central focusing area 125b. The edge focusing area 125a is set corresponding to the regional sensor (117a, 117b, 117c and 117d). The edge focusing area 125a includes multiple concentric rings or wedge-shaped stripes, which are designed in an equal-thickness fingerprint style. The edge focusing area 125a can increase the area of ​​a single optical area to ensure energy convergence. The integrated correction design is conducive to detecting movement in a long-distance area and achieving accurate detection. The central focusing area 125b includes multiple protrusions or pits, which are designed in a bean-point design. The number of lens units of the same area is increased, which is conducive to detecting micro-movements such as arm movements.

[0107] In one or more embodiments of the present application, the sensor module 115 can detect the human activity in the air-conditioned room. For example, the human activity in the air-conditioned room can be reflected by detecting the frequency of human movement, which can be obtained by the number of pulses detected by the regional sensors (117a, 117b, 117c and 117d) and the central sensor 116 in the sensor module 115.

[0108] Exemplarily, a detection cycle is set, and the detection cycle includes multiple identical and continuous unit cycles. The sensor module 115 detects the number of pulses in each unit cycle within the set detection cycle and determines the maximum number of pulses; when the maximum number of pulses is higher than the set threshold, the maximum number of pulses is used as a judgment criterion. After determining the judgment criterion, the real-time pulse number is detected at the frequency of the unit cycle, and the ratio of the real-time pulse number to the judgment criterion is calculated, and the human activity is determined based on the ratio. The higher the ratio, the higher the human activity, and the lower the ratio, the lower the human activity. By constructing a suitable activity model, the current human activity is graded and classified to achieve the adjustment of the air conditioning cooling capacity and heating capacity, so as to achieve the purpose of comfort and energy saving.

[0109] Exemplarily, a detection cycle is set to 1 week, a unit cycle is set to 10 minutes, a threshold is set to 100, the ratio of the real-time pulse number to the judgment benchmark is denoted as S, the real-time pulse number is ×, and the maximum pulse number is N. When s≥70%, the human body activity is high; 35%≤s<70%, the human body activity is medium; s<35%, the human body activity is low.

[0110] In one or more embodiments of the present application, the wind guide assembly is configured to adjust the angle according to whether there is someone in the detection area of ​​the area sensors ( 117a , 117b , 117c , and 117d ) and the central sensor 116 .

[0111] Wind follows people's control mode:

[0112] In one or more embodiments of the present application, when there is a person in the detection area of ​​the central sensor 116 and there is no person in the detection area of ​​the regional sensors (117a, 117b, 117c and 117d), the air guide assembly arranged at one or more air supply outlets is controlled to be in an air supply state so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the central sensor 116.

[0113] like Fig.17 As shown, exemplarily, the air guide components at the two groups of air supply outlets can be controlled to be in an alternating air supply state so that the actual air supply areas F1 and F2 of the corresponding air supply outlets partially overlap with the detection area D1 of the central sensor 116, thereby achieving close-range air supply.

[0114] In one or more embodiments of the present application, when there is a person in the detection area of ​​the central sensor 116 and there is a person in the detection area of ​​at least one area sensor (117a, 117b, 117c and 117d), the air guide component at the air supply outlet corresponding to the area sensor (117a, 117b, 117c and 117d) with a person in the detection area is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet overlaps with the detection area of ​​the area sensor (117a, 117b, 117c and 117d) and the detection area of ​​the central sensor 116 at the same time; the air guide component at the air supply outlet corresponding to the area sensor (117a, 117b, 117c and 117d) with no person in the detection area is controlled to be in an avoidance state.

[0115] like Fig.18 As shown, for example, when there are people in both D1 and D2a, a group of air guide components at the air outlet can be controlled to be in the air supply state, so that the actual air supply area F3 of the corresponding air outlet partially overlaps with the detection area D1 of the central sensor 116, and at the same time partially overlaps with the detection area (for example, D2a) of the corresponding regional sensors (117a, 117b, 117c, and 117d), and the air guide components at the air outlet of the regional sensors (117a, 117b, 117c, and 117d) where there is no one in the detection area are controlled to be in the avoidance state. At this time, the air supply of the two areas can be maintained at the same time by a group of air guide components, and the number of operating components can be reduced on the basis of partitioning, so as to achieve the effect of energy saving and noise reduction.

[0116] In one or more embodiments of the present application, when there is no person in the detection area of ​​the central sensor 116, but there is a person in the detection area of ​​at least one area sensor (one of 117a, 117b, 117c and 117d), the air guide component at the air supply outlet corresponding to the area sensor (117a, 117b, 117c and 117d) with a person in the detection area is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the area sensor (117a, 117b, 117c and 117d), and the air guide component at the air supply outlet corresponding to the area sensor (117a, 117b, 117c and 117d) with no person in the detection area is controlled to be in an avoidance state.

[0117] like Fig.19As shown, exemplarily, when there is only someone in D2a, the air guide components at a group of air supply outlets can be controlled to be in an air supply state, so that the actual air supply area F4 of the corresponding air supply outlet partially overlaps with the detection area of ​​the area sensor (117a, 117b, 117c and 117d), and the air guide components at the air supply outlets corresponding to the area sensors (117a, 117b, 117c and 117d) where there is no one in the detection area are controlled to be in an avoidance state.

[0118] The air guide assembly in the air supply state can be in any controllable position, and the avoidance state includes a closed state or a state where the air supply port is lower than a set opening, such as the opening corresponding to horizontal air supply.

[0119] Also based on the original design intention of the intelligent air supply mode of energy saving and noise reduction, four air supply outlets are set correspondingly and the basic structure is symmetrically arranged in groups of two. When there is a person in the detection area of ​​the central sensor 116 and no one in the detection area of ​​the regional sensors (117a, 117b, 117c and 117d), the air guide components at the two groups of symmetrically arranged air supply outlets are controlled to be in the air supply state in turn, so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the central sensor 116;

[0120] When the detection area of ​​the central sensor 116 is switched to one in which there is a person, and a detection area of ​​one of the regional sensors (117a, 117b, 117c and 117d) is one in which there is a person, the air guide component at the air supply outlet corresponding to the regional sensor (117a, 117b, 117c and 117d) in which there is a person is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet overlaps with the detection area of ​​the regional sensor (117a, 117b, 117c and 117d) and the detection area of ​​the central sensor 116 at the same time, and the air guide component at the air supply outlet corresponding to the regional sensor (117a, 117b, 117c and 117d) in which there is no person is controlled to be in an avoidance state;

[0121] The avoidance state includes a closed state or a state where the air supply outlet is lower than a set opening.

[0122] In this way, when there is someone in the detection area of ​​the central sensor 116 and no one in the detection area of ​​the regional sensors (117a, 117b, 117c and 117d), the two groups of symmetrically arranged air guide components at the air outlets will be in the air supply state in turn, for example, the first group of air guide components located at the air outlets 124a and 124c and the second group of air guide components located at the air outlets 124b and 124d will be in the air supply state in turn. In this way, the air conditioning device achieves balanced comfort of environmental parameters of the entire air-conditioned room under low energy consumption conditions while maintaining the comfort of the body under the indoor unit. When someone else enters the air-conditioned room and is located in the detection area of ​​the area sensor (117a, 117b, 117c and 117d), only the air guide components at the air outlet corresponding to the area sensor (117a, 117b, 117c and 117d) with someone in the detection area are in the air supply state, so that it can be ensured in real time that the air supply area covers the detection area of ​​the central sensor 116 and the detection area covered by the area sensor (117a, 117b, 117c and 117d), and even if only one air outlet is working, the effect of wind following people can be achieved, and at the same time, this method is also conducive to energy saving and noise reduction. It is particularly suitable for offices with frequent entry and exit of people.

[0123] Control mode of wind avoiding people:

[0124] When there is no one in the detection area of ​​the central sensor 116, but there is someone in the detection area of ​​at least one of the regional sensors (117a, 117b, 117c and 117d), the air guide components at the air supply outlets corresponding to the one or more regional sensors (117a, 117b, 117c and 117d) where there is no one in the detection area are controlled to be in an air supply state, and the air guide components at the air supply outlets corresponding to the regional sensors (117a, 117b, 117c and 117d) where there are people in the detection area are controlled to be in a avoidance state, so that the actual air supply area of ​​the corresponding air supply outlet does not overlap with the detection area of ​​the regional sensors (117a, 117b, 117c and 117d) where there are people in the detection area;

[0125] When there is a person in the detection area of ​​the central sensor 116, the air guide components at all air outlets are controlled to be in an avoidance state so that the actual air supply areas of all air outlets do not overlap with the detection area of ​​the central sensor 116;

[0126] The avoidance state includes a closed state or a state where the air supply outlet is lower than a set opening.

[0127] Control when the air-conditioned room is unoccupied:

[0128] When there is no one in the detection area of ​​the area sensors (117a, 117b, 117c and 117d) and the detection area of ​​the central sensor 116 and the ceiling-mounted indoor unit is in working state, timing control is performed; and when the accumulated time reaches the first preset moment, the set temperature is adjusted to the preset temperature, and the sensor module 115 is kept in working state; after the set temperature is adjusted to the preset temperature, timing control is performed again, and when the accumulated time reaches the second preset moment, the ceiling-mounted indoor unit is driven to enter the standby state, and the sensor module 115 is kept in working state; after driving the ceiling-mounted indoor unit to enter the standby state, timing control is performed again, and when the accumulated time reaches the third preset moment, the ceiling-mounted indoor unit is driven to enter the shutdown state, and the sensor module 115 stops working.

[0129] In cooling mode, the preset temperature is the upper limit of the set temperature; in heating mode, the preset temperature is the lower limit of the set temperature.

[0130] The first preset time, the second preset time and the third preset time are generated based on the unit time, and the unit time can be 15 minutes, 30 minutes, 60 minutes, 90 minutes, and 120 minutes. The first preset time corresponds to the unit time, the second preset time corresponds to 2 times the unit time, and the third preset time corresponds to 3 times the unit time. Before the third preset time is reached, if the sensor module 115 detects that there is someone in the air-conditioned room, the control of the set temperature is restored.

[0131] Ground radiant temperature control:

[0132] In principle, in an air-conditioned room, cold air sinks and hot air rises. When the air-conditioning device is operating in heating mode, there will be a temperature difference between the ground temperature and the temperature at the return air outlet 126 of the top-mounted indoor unit, especially when the indoor unit is just started. In order to correct this deviation, a ground radiation temperature control is specially designed.

[0133] From a hardware perspective, the ceiling-mounted indoor unit further includes a floor temperature sensor 127 for detecting the floor temperature of the air-conditioned room. The floor temperature sensor 127 is preferably an infrared temperature sensor, which is integrated on the same PCB circuit board as the sensor module 115. The return air outlet 126 is also provided with a return air temperature sensor.

[0134] When the difference between the detection value of the return air temperature sensor and the detection value of the floor temperature sensor 127 is above the set threshold, the room temperature is corrected according to the preset floor temperature weight and return air temperature weight, and the deviation between the corrected room temperature and the target temperature is calculated based on the difference, and the speed of the indoor fan is increased at the same time;

[0135] At the same time, if there is someone in the detection area of ​​the central sensor 116 but no one in the detection area of ​​the regional sensors (117a, 117b, 117c and 117d), the air guide components at all air outlets are controlled to be in an avoidance state so that the actual air supply areas of all air outlets do not overlap with the detection area of ​​the central sensor 116;

[0136] If there is no one in the detection area of ​​the central sensor 116 but there is someone in the detection area of ​​at least one of the regional sensors (117a, 117b, 117c and 117d), the air guide assembly at the air supply outlet corresponding to the regional sensor (117a, 117b, 117c and 117d) with someone in the detection area is controlled to be in a evasive state, so that the actual air supply area of ​​the air supply outlet does not overlap with the detection area of ​​the regional sensor (117a, 117b, 117c and 117d) with someone in the detection area;

[0137] If there is no one in the detection area of ​​the central sensor 116 and the detection area of ​​the regional sensors (117a, 117b, 117c and 117d), the air guide component at the air supply outlet is controlled to be in the air supply state, so that the actual air supply area of ​​the corresponding air supply outlet overlaps with the detection area of ​​the regional sensors (117a, 117b, 117c and 117d) and the detection area of ​​the central sensor 116.

[0138] The more the difference between the detection value of the return air temperature sensor and the detection value of the floor temperature sensor 127 deviates from the set threshold, the greater the floor temperature weight.

[0139] In one or more embodiments of the present application, the detection value of the return air temperature sensor is denoted as T i , the detection value of the ground temperature sensor 127 is recorded as T f , the corrected room temperature is recorded as T i_rev , then when T i -T f <0℃, the ground temperature weight is 0, and the return air temperature weight is 1. At this time, the temperature above the air-conditioned room is relatively low, and the heating operation has not yet increased the ground temperature. i_rev T i ; When 0℃≤Ti-Tf<3℃, the ground temperature weight is 1 / 2, the return air temperature weight is 1 / 2, T i_rev is (T i +T f ) / 2; when 3℃≤Ti-Tf<6℃, the ground temperature weight is 2 / 3, the return air temperature weight is 1 / 3, T i_rev is (T i +2T f) / 3, at this time, the outdoor ambient temperature is low or the sealing performance of the air-conditioned room is poor, and the temperature difference is large; when 6℃≤Ti-Tf<10℃, the ground temperature weight is 1, the return air temperature weight is 0, T i_rev T f At this time, the temperature difference is large, and the ground temperature is used as the indoor temperature for control.

[0140] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0141] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. Air conditioning device, including: At least one ceiling-mounted indoor unit, wherein the ceiling-mounted indoor unit is provided with a plurality of air outlets, and a sensor module is provided in the ceiling-mounted indoor unit; The sensor module comprises: A plurality of area sensors for detecting whether there are people in the air-conditioned room, wherein the plurality of area sensors are arranged adjacent to each other; It is characterized in that The plurality of area sensors are arranged corresponding to the plurality of air outlets, and the detection area of ​​the area sensor at least partially overlaps with the air supply area of ​​the corresponding air outlet; Also includes: A central sensor is arranged between the plurality of area sensors, and the central sensor is configured to detect whether there is a person under the ceiling-mounted indoor unit; a detection area of ​​the central sensor does not overlap with the detection areas of the plurality of area sensors, and partially overlaps with air supply areas of the plurality of air supply outlets.

2. The air conditioning device according to claim 1, characterized in that: The plurality of air outlets are respectively provided with air guide components, and the air guide components are configured to adjust the angle according to whether there are people in the detection areas of the area sensor and the central sensor; When there is a person in the detection area of ​​the central sensor and no one in the detection area of ​​the regional sensor, the air guide assembly arranged at one or more air supply outlets is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the central sensor; When there is a person in the detection area of ​​the central sensor and there is a person in the detection area of ​​at least one of the regional sensors, the air guide components at the air supply outlets corresponding to the regional sensors with people in the detection area are controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlets overlaps with the detection area of ​​the regional sensor and the detection area of ​​the central sensor at the same time; the air guide components at the air supply outlets corresponding to the regional sensors with no people in the detection area are controlled to be in an avoidance state; When there is no one in the detection area of ​​the central sensor, but there is someone in the detection area of ​​at least one of the regional sensors, the air guide components at the air supply outlet corresponding to the regional sensor with someone in the detection area are controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the regional sensor; the air guide components at the air supply outlet corresponding to the regional sensor with no one in the detection area are controlled to be in an avoidance state; The avoidance state includes a closed state or a state where the air supply port is lower than a set opening.

3. The air conditioning device according to claim 2, characterized in that: The ceiling-mounted indoor unit is provided with four air outlets which are symmetrically arranged in groups of two; When there is a person in the detection area of ​​the central sensor and no one in the detection area of ​​the regional sensor, the air guide components at the two symmetrically arranged air supply outlets are controlled to be in the air supply state in turn, so that the actual air supply area of ​​the corresponding air supply outlet partially overlaps with the detection area of ​​the central sensor; When the detection area of ​​the central sensor is switched to one in which there is a person, and one of the regional sensors has a person in its detection area, the air guide assembly at the air supply outlet corresponding to the regional sensor having a person in its detection area is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air supply outlet overlaps with the detection area of ​​the regional sensor and the detection area of ​​the central sensor at the same time, and the air guide assembly at the air supply outlet corresponding to the regional sensor having no person in its detection area is controlled to be in an avoidance state; The avoidance state includes a closed state or a state where the air supply port is lower than a set opening.

4. The air conditioning device according to claim 1, characterized in that: A plurality of air outlets are respectively provided with air guide components, and the air guide components are configured to adjust the angle according to whether there are people in the detection areas of the area sensors and the central sensor; When there is no one in the detection area of ​​the central sensor, but there is someone in the detection area of ​​at least one of the regional sensors, the air guide components at the air supply outlets corresponding to the one or more regional sensors without anyone in the detection area are controlled to be in an air supply state, and the air guide components at the air supply outlets corresponding to the regional sensors with someone in the detection area are controlled to be in an avoidance state, so that the actual air supply area of ​​the corresponding air supply outlet does not overlap with the detection area of ​​the regional sensor with someone in the detection area; When there is a person in the detection area of ​​the central sensor, the air guide components at all air outlets are controlled to be in an avoidance state so that the actual air supply areas of all air outlets do not overlap with the detection area of ​​the central sensor; The avoidance state includes a closed state or a state where the air supply port is lower than a set opening.

5. The air conditioning device according to claim 1, characterized in that: When there is no one in the detection area of ​​the area sensor and the detection area of ​​the central sensor and the ceiling-mounted indoor unit is in working state, timing control is performed; when the accumulated time reaches a first preset moment, the set temperature is adjusted to the preset temperature to keep the sensor module in working state; after the set temperature is adjusted to the preset temperature, timing control is performed again, and when the accumulated time reaches a second preset moment, the ceiling-mounted indoor unit is driven to enter a standby state to keep the sensor module in working state; after driving the ceiling-mounted indoor unit to enter the standby state, timing control is performed again, and when the accumulated time reaches a third preset moment, the ceiling-mounted indoor unit is driven to enter a shutdown state, and the sensor module stops working.

6. The air conditioning device according to claim 1, characterized in that: The plurality of air supply vents are respectively provided with air guide components, the air guide components are configured to adjust the angle according to whether there are people in the detection areas of the area sensor and the central sensor, and the plurality of air supply vents are arranged around the return air vent; The ceiling-mounted indoor unit further comprises: A floor temperature sensor for detecting the floor temperature of an air-conditioned room; A return air temperature sensor for detecting the return air temperature; When the difference between the detection value of the return air temperature sensor and the detection value of the floor temperature sensor is above a set threshold, a corrected room temperature is calculated according to a preset floor temperature weight and a return air temperature weight, and a deviation from the target temperature is calculated based on the corrected room temperature; At the same time, if there is a person in the detection area of ​​the central sensor but no one in the detection area of ​​the regional sensor, the air guide components at all air outlets are controlled to be in an avoidance state so that the actual air supply areas of all air outlets do not overlap with the detection area of ​​the central sensor; If there is no one in the detection area of ​​the central sensor and there is someone in the detection area of ​​at least one of the regional sensors, the air guide assembly at the air supply outlet corresponding to the regional sensor with someone in the detection area is controlled to be in an avoidance state, so that the actual air supply area of ​​the air supply outlet does not overlap with the detection area of ​​the regional sensor with someone in the detection area; If there is no one in the detection area of ​​the central sensor and the detection area of ​​the regional sensor, the air guide assembly at the air outlet is controlled to be in an air supply state, so that the actual air supply area of ​​the corresponding air outlet partially overlaps with the detection area of ​​the regional sensor and the detection area of ​​the central sensor; The avoidance state includes a closed state or a state where the air supply port is lower than a set opening.

7. The air conditioning device according to claim 6, characterized in that: The ceiling-mounted indoor unit further includes: an indoor fan; When the difference between the detection value of the return air temperature sensor and the detection value of the floor temperature sensor is above a set threshold, the rotation speed of the indoor fan is increased.

8. The air conditioning device according to claim 6 or 7, characterized in that: The higher the difference between the detection value of the return air temperature sensor and the detection value of the floor temperature sensor deviates from the set threshold, the greater the floor temperature weight.

9. The air conditioning device according to any one of claims 1 to 7, characterized in that: The regional sensor and the central sensor are pyroelectric sensors; The sensor module also includes: A lens portion, the lens portion is disposed outside the area sensor and the central sensor, and includes: an edge light focusing area, the edge light focusing area being arranged corresponding to the area sensor, the edge light focusing area comprising a plurality of concentric circular rings or wedge-shaped stripes; and A central light-focusing area is arranged corresponding to the central sensor, and the central light-focusing area includes a plurality of protrusions or pits.

10. Air conditioning equipment, including: At least one ceiling-mounted indoor unit, wherein the ceiling-mounted indoor unit is provided with a plurality of air outlets, and a sensor module is provided in the ceiling-mounted indoor unit; The sensor module comprises: A plurality of area sensors for detecting whether there are people in the air-conditioned room, wherein the plurality of area sensors are arranged adjacent to each other; It is characterized in that The plurality of area sensors are arranged in a downward tilt and correspond one by one to the plurality of air supply outlets; Also includes: a central sensor disposed between the plurality of zone sensors, the central sensor being disposed vertically downward and configured to detect whether there is a person under the ceiling-mounted indoor unit; and A lens portion, the lens portion is disposed outside the area sensor and the central sensor, and includes: an edge light focusing area, the edge light focusing area being arranged corresponding to the area sensor, the edge light focusing area comprising a plurality of concentric circular rings or wedge-shaped stripes; and A central light-focusing area is arranged corresponding to the central sensor, and the central light-focusing area includes a plurality of protrusions or pits.

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