Air conditioner indoor unit and air conditioner unit

Abstract

The invention relates to an air conditioner indoor unit and an air conditioner unit. The air conditioner indoor unit comprises a first module, a second module and a first heat exchanger. The first module and the second module are independently arranged, the first module is provided with a first air outlet, the first air outlet is used for allowing air in the first module to enter a room, the second module is provided with a first air opening and an exhaust opening, the first air opening is suitable for allowing indoor air to enter the second module, and the first air opening communicates with the first air outlet through an air pipe; the air outlet is suitable for communicating with outdoors. The first heat exchanger is arranged in the first module or the second module and can heat or cool air entering from the first air opening. The air conditioner indoor unit is divided into the first module and the second module which are independently arranged, the first module and the second module can be arranged in different areas of the top of the toilet correspondingly, the space occupied by the air conditioner indoor unit for a single area of the top of the toilet is reduced, and the arrangement difficulty of the air conditioner unit is lowered.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning technology, specifically to an indoor air conditioning unit and an air conditioning system. Background Technology

[0002] As people's living standards continue to improve, they are paying more and more attention to the health of their home environment. Among these, the bathroom is an essential part of every household and one of the most frequently used environments. To meet users' growing demands for heating and ventilation, heaters, bathroom fans, or air conditioners are commonly used to improve the bathroom temperature.

[0003] Because bathroom ceiling space is limited while there are many pipes and equipment to be installed, bathroom heaters, which integrate ventilation, heating and cooling functions, are large in size and difficult to install in the bathroom ceiling space. Summary of the Invention

[0004] The purpose of this disclosure is to provide an indoor air conditioning unit and an air conditioning system to solve the aforementioned technical problems.

[0005] To achieve the above objectives, as a first aspect of this disclosure, this disclosure provides an air conditioning indoor unit, including a first module, a second module, and a first heat exchanger; The first module and the second module are arranged independently. The first module is provided with a first air outlet, which is used to allow air from the first module to enter the room. The second module is provided with a first air vent and an exhaust vent. The first air vent is suitable for allowing indoor air to enter the second module. The first air vent and the first air outlet are connected by an air duct. The exhaust vent is suitable for connecting to the outside. The first heat exchanger is disposed within the first module or the second module and is configured to heat or cool the air entering from the first air inlet.

[0006] Optionally, the second module is adapted to be installed in the humid area of ​​the room, and the first air vent is used to allow air from the humid area to enter the second module.

[0007] Optionally, the first module is adapted to be installed in the dry area of ​​the room, and the first air outlet is used to allow air from the first module to enter the dry area.

[0008] Optionally, the first module includes a first housing and a first fan assembly disposed within the first housing; The first fan assembly is used to introduce air from the first air outlet into the room.

[0009] Optionally, the first fan assembly includes a first motor, a first centrifugal impeller, and a first volute. The first volute is arranged inside the first housing, the first motor is arranged inside the first volute, and the drive shaft of the first motor is connected to the first centrifugal impeller for driving the first centrifugal impeller to rotate. The first volute is provided with a first opening and at least one second opening. The first opening is connected to the air duct and is arranged corresponding to the end of the first centrifugal impeller that is axially away from the first motor. The second opening is used as the air outlet of the first volute and is arranged along the radial direction of the first centrifugal impeller. The first housing is provided with a third opening that communicates with the second opening.

[0010] Optionally, there are two second openings, which are arranged on opposite sides of the first centrifugal impeller.

[0011] Optionally, the first module further includes a first panel configured to be used as part of the ceiling of the interior.

[0012] Optionally, the first module further includes at least one first air outlet duct, one end of which is connected to a corresponding third opening, and the other end of which is connected to the first panel, with the first air outlet disposed on the first panel; or, The first module further includes at least one first air outlet duct, one end of which is connected to a corresponding third opening, and the first air outlet is located on the side of the first air outlet duct facing the room.

[0013] Optionally, the first module further includes a lamp heating structure, which is disposed on the side of the first panel facing the interior.

[0014] Optionally, the second module includes a second housing and a second fan assembly disposed within the second housing; The second fan assembly is configured to draw air from the second housing through the exhaust port to the outside.

[0015] Optionally, the second fan assembly includes a second motor, a second centrifugal impeller, and a second volute. The second volute is arranged inside the second housing, the second motor is arranged inside the second volute, and the drive shaft of the second motor is connected to the second centrifugal impeller for driving the second centrifugal impeller to rotate. The second volute is provided with a fourth opening and a fifth opening. The fourth opening serves as the air inlet of the second volute and is arranged corresponding to the end of the second centrifugal impeller that is axially away from the second motor. The fifth opening serves as the air outlet of the second volute and is arranged along the radial direction of the second centrifugal impeller. The fourth opening is connected to the first air outlet, and the fifth opening is connected to the exhaust outlet.

[0016] Optionally, the second housing is provided with a sixth opening, which is connected to one end of the air duct, and the first heat exchanger is located at the position of the sixth opening.

[0017] Optionally, the second module is provided with a second air vent, which serves as a fresh air inlet and is suitable for introducing fresh outdoor air into the second module.

[0018] Optionally, the second module includes a second housing and a second fan assembly disposed within the second housing; The second air vent and the exhaust vent are located in the second housing; The second fan assembly is configured to introduce outdoor air into the room through the second air vent and to exhaust indoor air to the outside through the exhaust vent.

[0019] Optionally, the second housing includes a first cavity, a second cavity, and a third cavity, the first cavity and the second cavity are connected, the second fan assembly is configured to introduce fresh air into the second cavity and then into the first cavity, and the second fan assembly is configured to introduce indoor air into the third cavity and then exhaust it to the outside.

[0020] Optionally, the second housing includes a first partition and a second partition; The first partition divides the interior of the second housing into the first cavity and the connecting cavity, and the second partition divides the connecting cavity into the second cavity and the third cavity; The first partition is provided with a connecting hole that connects the first cavity and the second cavity; The first cavity is connected to the first module via the air duct; The second fan assembly is disposed in the communicating cavity, the second air outlet is connected to the second cavity, the exhaust outlet is connected to the third cavity, and the exhaust outlet is connected to the first air outlet.

[0021] Optionally, the second fan assembly includes a second motor, a second centrifugal impeller, and a second volute. The second volute is arranged inside the second housing, the second centrifugal impeller is arranged inside the second volute, and the drive shaft of the second motor is connected to the second centrifugal impeller for driving the second centrifugal impeller to rotate. The second volute includes a first sub-volute located within the second cavity and a second sub-volute located within the third cavity; The second partition is provided with a through hole for the second centrifugal impeller to pass through. The second partition and the inner wall of the first sub-volute form a first volute cavity. The first volute cavity is connected to the first cavity through the connecting hole, and the first volute cavity is also connected to the second air outlet. The second partition and the inner wall of the second sub-volute form a second volute cavity, which is connected to the first air vent and the exhaust vent.

[0022] Optionally, the first volute is located above the second volute, and the fresh air inlet is located above the exhaust outlet.

[0023] Optionally, the first air outlet includes a first sub-air outlet and a second sub-air outlet separated by the first partition, the first sub-air outlet being connected to the first cavity, and the second sub-air outlet being connected to the third cavity.

[0024] Optionally, a filter is provided at the fresh air inlet.

[0025] As a second aspect of this disclosure, this disclosure provides an air conditioning unit including the above-described indoor air conditioning unit.

[0026] The above technical solution divides the air conditioner indoor unit into a first module and a second module, which are arranged independently. In this way, the first module and the second module can be arranged in different areas of the bathroom ceiling. While ensuring that the air conditioner indoor unit has functions such as cooling, heating and ventilation, it reduces the space occupied by the air conditioner indoor unit in a single area of ​​the bathroom ceiling. This makes the arrangement of pipelines and equipment in the bathroom ceiling area more flexible, reduces the difficulty of arrangement, and improves the adaptability of the air conditioner indoor unit to different sizes of space.

[0027] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the installation position of an air conditioner indoor unit arranged on the ceiling according to one embodiment of the present disclosure; Figure 2 This is a top view of the installation position of an air conditioner indoor unit arranged on the ceiling according to one embodiment of the present disclosure; Figure 3This is a perspective view of the first module structure of an air conditioner indoor unit according to one embodiment of the present disclosure; Figure 4 This is an exploded view of the first module structure of an air conditioner indoor unit according to one embodiment of this disclosure; Figure 5 This is a perspective view of the first module of an air conditioner indoor unit provided in one embodiment of this disclosure; Figure 6 This is a perspective view of the first module of the indoor unit of an air conditioner provided in another embodiment of this disclosure; Figure 7 This is a perspective view of the second module of an air conditioner indoor unit provided in one embodiment of this disclosure; Figure 8 This is an exploded view of the second module portion of an air conditioner indoor unit according to one embodiment of this disclosure; Figure 9 This is a perspective view of the second module of an air conditioner indoor unit provided in one embodiment of the present disclosure (and...). Figure 7 (Different perspectives) Figure 10 This is a top view of the second module of an air conditioner indoor unit provided in one embodiment of this disclosure; Figure 11 yes Figure 10 Cross-sectional view along the AA direction; Figure 12 This is a schematic diagram of the airflow path when the indoor unit of an air conditioner is in cooling mode / heating mode according to one embodiment of the present disclosure, wherein the arrow direction is the airflow direction; Figure 13 This is a schematic diagram of the airflow path when the indoor unit of an air conditioner is in ventilation mode according to one embodiment of the present disclosure, wherein the arrow direction is the airflow direction; Figure 14 This is a perspective view of the second module of the indoor unit of an air conditioner provided in another embodiment of this disclosure; Figure 15 This is an exploded view of the second module portion of the air conditioner indoor unit provided in another embodiment of this disclosure; Figure 16 This is a perspective view of the second module of the air conditioner indoor unit provided in another embodiment of this disclosure (and...). Figure 14 (Different perspectives) Figure 17 This is a schematic diagram of the airflow path when the indoor unit of an air conditioner is in cooling mode / heating mode according to another embodiment of this disclosure, wherein the arrow direction is the airflow direction; Figure 18 This is a schematic diagram of the airflow path of an indoor air conditioner unit in fresh air mode according to one embodiment of the present disclosure, wherein the arrow indicates the direction of airflow.

[0029] Explanation of reference numerals in the attached figures 100-Indoor unit of air conditioner; 1-First module; 11-First air outlet; 12-First housing; 121-Third opening; 13-First fan assembly; 131-First motor; 132-First centrifugal impeller; 133-First volute; 1331-First opening; 1332-Second opening; 14-First panel; 15-First air outlet duct; 2-Second module; 21-First air vent; 211-First sub-air vent; 212-Second sub-air vent; 22-Exhaust vent; 23-Second panel; 24-Second air outlet duct; 25-Second fan assembly; 251-Second motor; 252-Second centrifugal impeller; 253- Second volute; 2531-Fourth opening; 2532-Fifth opening; 2533-First sub-volute; 2534-Second sub-volute; 2535-Second partition; 2536-First volute cavity; 2537-Second volute cavity; 2538-Seventh opening; 2539-Eighth opening; 26-Second housing; 261-Sixth opening; 262-First partition; 2621-Connecting hole; 263-First cavity; 264-Second cavity; 265-Fixed side plate; 266-Third cavity; 267-Connecting cavity; 27-Second air outlet; 28-Air inlet pipe; 3-First heat exchanger; 4-Air duct; 5-Light heating structure; 6-Filter screen. Detailed Implementation

[0030] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0031] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" are generally defined in the state of the indoor unit of the air conditioner during normal operation. They are used only for the convenience of describing this disclosure and for simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or a specific orientational construction and operation, and therefore should not be construed as a limitation of this disclosure. "Inner" and "outer" refer to the inside and outside of the outline of the corresponding component. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connect," "link," and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0033] Because bathroom ceiling space is limited while there are many pipes and equipment to be installed, the bathroom heater technology integrates functions such as ventilation, heating and cooling. The overall size of the equipment is large, making it difficult to install in the bathroom ceiling space, and it is not adaptable to different sizes of space.

[0034] In view of this, as a first aspect of this disclosure, such as Figures 1 to 18 As shown, this disclosure provides an air conditioner indoor unit 100, including a first module 1, a second module 2 and a first heat exchanger 3.

[0035] The first module 1 and the second module 2 are arranged independently. The first module 1 is provided with a first air outlet 11, which is used to allow air from the first module 1 to enter the room. The second module 2 is provided with a first air vent 21 and an exhaust vent 22. The first air vent 21 is adapted to allow indoor air to enter the second module 2. The first module 1 and the second module 2 are connected by a duct 4, so that the first air vent 21 and the first air outlet 11 are connected by the duct 4. The exhaust vent 22 is adapted to connect to the outside. A first heat exchanger 3 is provided in the first module 1 or the second module 2, and is configured to heat or cool the air entering the first module 1 from the second module 2, that is, to heat or cool the air entering from the first air vent 21. In addition, when the second module 2 is provided with a second air vent 27 as a fresh air inlet, the first heat exchanger 3 can also heat or cool the air entering from the second air vent 27. The description of the second air vent 27 is as follows.

[0036] The indoor unit 100 of the air conditioner can have a cooling mode, a heating mode, and a ventilation mode. In the heating mode, when the first heat exchanger 3 acts as a condenser to dissipate heat, indoor air enters the second module 2 through the first air vent 21. Since the second module 2 and the first module 1 are connected by a duct 4, that is, the first air vent 21 and the first air outlet 11 are connected by a duct 4, the air in the second module 2 can enter the first module 1 through the duct 4. During this process, the air is heated into hot air by the first heat exchanger 3, and then enters the room as hot air through the first air outlet 11, for example, into the dry area of ​​a bathroom, to raise the indoor (bathroom) temperature. Similarly, in the cooling mode, when the first heat exchanger 3 acts as an evaporator to absorb heat, the air blown out from the first air outlet 11 is cold air, used to lower the indoor temperature.

[0037] In the ventilation mode, since the second module 2 is also equipped with an exhaust vent 22, the indoor air can enter the second module 2 through the first air vent 21 and then be directly exhausted to the outside through the exhaust vent 22, thus achieving the function of indoor and outdoor ventilation.

[0038] Through the above technical solution, the air conditioner indoor unit 100 is divided into an independently arranged first module 1 and a second module 2. In this way, the first module 1 and the second module 2 can be arranged in different areas of the bathroom ceiling. While ensuring that the air conditioner indoor unit 100 has functions such as cooling, heating and ventilation, the space occupied by the air conditioner indoor unit 100 in a single area of ​​the bathroom ceiling is reduced. This makes the arrangement of pipelines and equipment in the bathroom ceiling area more flexible, reduces the difficulty of arrangement, and improves the adaptability of the air conditioner indoor unit 100 to different sizes of space.

[0039] To improve the effects of temperature regulation and ventilation, and to increase ventilation efficiency, alternatively, such as Figure 1 and Figure 2 As shown, the second module 2 can be placed in the wet area of ​​the room, and the first air vent 21 is used to supply air from the wet area into the second module 2. Bathrooms are typically divided into dry and wet areas. The dry area generally refers to the area where the sink is placed, and the wet area generally refers to the shower area. By placing the second module 2 in the wet area of ​​the bathroom, when the user is showering, air from the wet area can be drawn into the second module 2 through the first air vent 21. The air can then be exhausted to the outside through the exhaust vent 22, or it can be heated or cooled by the first heat exchanger 3 and then exhausted through the first air outlet 11 of the first module 1.

[0040] This design allows for the timely exhaust of hot air generated in the wet area during showering to the outside through the exhaust vent 22, reducing the stuffiness experienced by the user. Simultaneously, during winter showers, the first vent 21 can heat the cold air from the wet area through the first heat exchanger 3 before exhausting it through the first air outlet 11, thereby raising the indoor temperature and improving the comfort of winter showers. This enhances the effectiveness of indoor temperature control and ventilation, as well as improving ventilation efficiency.

[0041] To further enhance shower comfort, optionally, such as Figure 1 and Figure 2 As shown, the first module 1 is suitable for installation in the dry area of ​​the room, and the first air outlet 11 is used to allow air from the first module 1 to enter the dry area. The air blown out from the first air outlet 11 can be cold or hot air that has been cooled or heated by the first heat exchanger 3. By installing the first module 1 in the dry area of ​​the bathroom, the cold or hot air blown out from the first air outlet 11 is discharged into the dry area, raising or lowering the temperature of the dry area, and then passing through a channel connected to the wet area to raise or lower the temperature of the wet area. When the high-speed airflow blows onto the moist skin, it forces the moisture on the skin to evaporate. The evaporation of moisture absorbs heat from the skin, causing a cooling sensation. In this way, it can prevent cold or hot air from blowing directly on the user's skin while showering, thus improving the user's comfort during showering.

[0042] Optionally, such as Figure 3As shown, the first module 1 includes a first housing 12 and a first fan assembly 13 disposed within the first housing 12. The first fan assembly 13 is used to introduce air into the room from the first air outlet 11. When the indoor unit is in heating or cooling mode, the first fan assembly 13 can draw air into the second module 2 through the first air outlet 21 on the second module 2, then guide it into the first housing 12 through the air duct 4, and blow it into the room through the first air outlet 11, thereby driving airflow between the dry and wet areas of the bathroom.

[0043] It is understood that in other embodiments of this disclosure, a blower may be provided in the second module 2 instead of the first module 1, as long as the circulation of gas can be guaranteed.

[0044] In this disclosure, the first wind turbine assembly 13 can have any suitable structure. Optionally, such as Figure 3 and Figure 4 As shown, in some embodiments of this disclosure, the first fan assembly 13 may include a first motor 131, a first centrifugal impeller 132, and a first volute 133. The first volute 133 is disposed within the first housing 12, and the first motor 131 is disposed within the first volute 133. For example, the first volute 133 may define a first receiving cavity with the inner wall of the first housing 12, and the first motor 131 may be disposed within the first receiving cavity. The drive shaft of the first motor 131 is connected to the first centrifugal impeller 132 for driving the first centrifugal impeller 132 to rotate. The first volute 133 is provided with a first opening 1331 and at least one second opening 1332. The first opening 1331 is connected to the air duct 4, that is, the first opening 1331 can be used as the air inlet of the first volute 133, and the first opening 1331 is arranged corresponding to the end of the first centrifugal impeller 132 that is axially away from the first motor 131. The second opening 1332 is used as the air outlet of the first volute 133 and is arranged along the radial direction of the first centrifugal impeller 132.

[0045] The first housing 12 is provided with a third opening 121 that communicates with the second opening 1332. To facilitate communication between the second opening 1332 and the third opening 121, as follows... Figure 3 and Figure 4 As shown, optionally, one end of the first volute 133 with the second opening 1332 is connected to the inner wall of the first housing 12, so that the third opening 121 communicates with the corresponding second opening 1332.

[0046] When the first fan assembly 13 is working, the first motor 131 drives the first centrifugal impeller 132 to rotate around its axis. As the centrifugal impeller rotates, it draws air in through its axial opening and then discharges it through radial openings to form an airflow. Therefore, a first opening 1331 and a second opening 1332 are respectively provided on the first volute 133 along the axial and radial directions of the first centrifugal impeller 132. This allows air to enter the first volute 133 through the first air inlet 21 (e.g., into the first receiving cavity), be driven by the first centrifugal impeller 132, and then exit the first volute 133 (exit the first receiving cavity) through the second opening 1332, and finally exit the first housing 12 through the third opening 121. The first opening 1331 can be connected to the second module 2 via the air duct 4, and the third opening 121 can be connected to the first air outlet 11.

[0047] Optionally, such as Figure 5 and Figure 6 As shown, there are two second openings 1332, arranged on opposite sides of the first centrifugal impeller 132. Since the first centrifugal impeller 132 discharges air radially, the two second openings 1332 on opposite sides allow the radial airflow from the first centrifugal impeller 132 to be discharged separately. Corresponding to the second openings 1332, two third openings 121 are also provided on the first housing 12. This allows the radial airflow from opposite sides of the first centrifugal impeller 132 to be discharged from the first housing 12 through the third openings 121 and then blown into the room through the first air outlet 11. The two third openings 121 further increase the air outlet area of ​​the first module 1, thereby increasing the airflow.

[0048] To facilitate the installation of the indoor unit 100 of the air conditioner, optionally, such as Figure 5 and Figure 6 As shown, the first module 1 also includes a first panel 14, which is configured to be used as part of the indoor ceiling. The first fan assembly 13 is installed inside the first housing 12, which can be mounted on the first panel 14, so that the first module 1 can be connected to the indoor ceiling through the first panel 14, and the first module 1 of the air conditioner indoor unit 100 is installed in the ceiling above the indoor space.

[0049] Since the installation method of the first module 1 differs for different types of suspended ceilings, in order to adapt to different types of suspended ceilings, optionally, such as Figure 5As shown, for gypsum board ceilings or integrated ceilings, the first module 1 also includes at least one first air outlet duct 15. One end of the first air outlet duct 15 is connected to a corresponding third opening 121, and the other end of the first air outlet duct 15 is connected to the first panel 14. A first air outlet 11 is disposed on the first panel 14. By placing both the first air outlet 11 and the first housing 12 on the first panel 14, it is convenient to replace the gaps in the gypsum board ceiling or integrated ceiling as a whole, which can further reduce the installation difficulty of the first module 1.

[0050] For honeycomb panel ceilings, in addition to the above-mentioned implementation method of setting the first air outlet 11 on the first panel 14, such as... Figure 6 As shown, the first module 1 can also be configured to include at least one first air outlet duct 15, one end of which is connected to a corresponding third opening 121, and a first air outlet 11 is provided on the side of the first air outlet duct 15 facing the room. In this way, holes can be made only at the corresponding positions of the first ceiling panel 14 and the first air outlet 11, which can reduce the area of ​​the opening and facilitate installation.

[0051] Optionally, there can be two first air outlet ducts 15, and the two first air outlet ducts 15 can be set to correspond to the two third openings 121.

[0052] Optionally, such as Figure 5 and Figure 6 As shown, the first module 1 also includes a lamp heating structure 5, which is located on the side of the first panel 14 facing the room. Direct heating via lamps improves user comfort. Furthermore, the lamp heating structure 5 can be used simultaneously with the first heat exchanger 3 to heat the indoor air and raise the indoor temperature more quickly.

[0053] For example, the indoor unit 100 of the air conditioner may also include a shower mode. When the user is not showering, the heating mode is activated to quickly heat the room. When the user is showering, the operating power of the compressor and the air volume of the first air outlet 11 are reduced, and the lamp heating structure 5 is turned on at the same time to ensure that the room temperature is balanced and that the air does not blow directly on the user to avoid discomfort.

[0054] Optionally, the second module 2 also includes a second panel 23 and a lamp heating structure 5. The second panel 23 is configured to be used as part of the indoor ceiling. The first air vent 21 is disposed on the second panel 23, and the lamp heating structure 5 is disposed on the side of the first panel 14 facing the indoor space.

[0055] To achieve the ventilation mode of the indoor unit 100 of the air conditioner, optionally, such as Figure 7As shown, the second module 2 includes a second housing 26 and a second fan assembly 25 disposed within the second housing 26. The second fan assembly 25 is configured to draw air from the second housing 26 through an exhaust port 22 to the outside. Figure 13 As shown, in ventilation mode, the second fan assembly 25 is activated, allowing indoor carbon dioxide to be expelled through the exhaust vent 22, thus creating space for oxygen-rich air to enter. Simultaneously, in embodiments where the second module 2 is positioned in the wet zone, the second fan assembly 25 can also expel humid air from the wet zone, providing users with a drier shower experience.

[0056] In addition, such as Figure 12 and Figure 13 As shown, in either cooling or heating mode, the first heat exchanger 3 heats or cools the air entering the first module 1, and the second fan assembly 25 can also be turned on. This allows the indoor air to be drawn out from the exhaust vent 22 to the outside while the heated or cooled air is discharged into the room through the first air outlet 11 of the first module 1, thus achieving simultaneous ventilation and cooling or heating.

[0057] Optionally, such as Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the second fan assembly 25 includes a second motor 251, a second centrifugal impeller 252, and a second volute 253. The second volute 253 is arranged inside the second housing 26, and the second motor 251 is arranged inside the second volute 253. For example, the second volute 253 and the inner wall of the second housing 26 define a second receiving cavity, and the second motor 251 is arranged inside the second receiving cavity. The drive shaft of the second motor 251 is connected to the second centrifugal impeller 252 for driving the second centrifugal impeller 252 to rotate.

[0058] The second volute 253 is provided with a fourth opening 2531 and a fifth opening 2532. The fourth opening 2531 serves as the air inlet of the second volute 253 and is arranged corresponding to the end of the second centrifugal impeller 252 that is axially away from the second motor 251. The fifth opening 2532 serves as the air outlet of the second volute 253 and is arranged along the radial direction of the second centrifugal impeller 252. The fourth opening 2531 is connected to the first air outlet 21, and the fifth opening 2532 is connected to the exhaust outlet 22.

[0059] In order to facilitate the connection between the fourth opening 2531 and the first air vent 21, and the fifth opening 2532 and the exhaust vent 22, optionally, as follows: Figure 10 and Figure 11As shown, the end of the second volute 253 with the air outlet can abut against the inner wall of the second housing 26, so that the fifth opening 2532 communicates with the exhaust port 22. The end of the second volute 253 with the air inlet can abut against the inner wall of the second housing 26, so that the fourth opening 2531 communicates with the first air outlet 21.

[0060] Among them, such as Figure 12 and Figure 13 As shown, the first heat exchanger 3 is disposed inside the second housing 26 and located outside the second volute 253.

[0061] When the second fan assembly 25 is working, the second motor 251 can drive the second centrifugal impeller 252 to rotate around its axis. As the centrifugal impeller rotates, it can draw air into the centrifugal impeller through its axial opening, and then discharge the impeller through the radial opening to form an airflow. Therefore, a fourth opening 2531 and a fifth opening 2532 are respectively provided on the second volute 253 along the axial and radial directions of the second centrifugal impeller 252. This allows air to enter the second volute 253 (e.g., into the second receiving cavity) through the first air inlet 21 connected to the fourth opening 2531, and after being driven by the second centrifugal impeller 252, it is discharged from the second volute 253 (e.g., discharged from the second receiving cavity) through the fifth opening 2532, and then discharged to the outside through the exhaust port 22.

[0062] Furthermore, by placing the first heat exchanger 3 inside the second housing 26, the air entering the second housing 26 from the first air vent 21 can be heated or cooled by the first heat exchanger 3 before entering the first module 1. Arranging the first heat exchanger 3 inside the second housing 26 also reduces the space occupied by the first module 1, thereby making the arrangement of the first module 1 more flexible.

[0063] Optionally, such as Figure 7 and Figure 8 As shown, the second housing 26 has a sixth opening 261, which is connected to one end of the air duct 4. The first heat exchanger 3 is located at the sixth opening 261. Air inside the second housing 26 can enter the air duct 4 through the sixth opening 261, thereby entering the first module 1, and then being discharged through the first air outlet 11. By placing the first heat exchanger 3 at the sixth opening 261, when the indoor unit 100 of the air conditioner is in cooling or heating mode, the air going from the second module 2 to the first module 1 can be directly heated or cooled at the sixth opening 261, improving the heating or cooling efficiency of the air.

[0064] Optionally, such as Figure 8As shown, the second housing 26 also includes two fixed side plates 265. One end of the fixed side plate 265 is connected to the inner wall of the second housing 26, and the other end of the fixed side plate 265 is connected to the first heat exchanger 3, so that the first heat exchanger 3 is arranged at an angle at the sixth opening 261.

[0065] Optionally, such as Figure 8 and Figure 11 As shown, the sixth opening 261 and the exhaust vent 22 are respectively located on two opposite side walls of the second housing 26. Since part of the air entering the second housing 26 through the first vent 21 can enter the first module 1 through the sixth opening 261, while the other part can be exhausted to the outside through the exhaust vent 22, and since the first module 1 and the outside are usually in opposite directions, setting the sixth opening 261 and the exhaust vent 22 on two opposite side walls of the second housing 26 facilitates the layout and installation of pipelines and reduces mutual interference between pipelines.

[0066] To improve ventilation quality, alternatively, such as Figure 14 , Figure 15 and Figure 16 As shown, the second module 2 is equipped with a second air vent 27, which serves as a fresh air inlet, suitable for introducing outdoor fresh air into the second module 2. Figure 18 As shown, the indoor unit 100 of the air conditioner also has a fresh air mode. In this mode, fresh outdoor air enters the second module 2 through the second air vent 27. Part of the fresh air can enter the room through the first air vent 21, and another part of the fresh air can enter the first module 1 through the air duct 4 and then be discharged through the first air outlet 11. Meanwhile, the indoor air can be discharged through the exhaust vent 22 of the second module 2, thereby improving the air freshness in different locations and spaces within the room.

[0067] Or, such as Figure 17 and Figure 18 As shown, when the indoor unit 100 of the air conditioner is in cooling or heating mode, the indoor air enters the second module 2 through the first air vent 21. A portion of the air can be discharged from the second module 2 through the exhaust vent 22, while the other portion of the air can enter the first module 1 through the air duct 4 along with the fresh air entering through the second air vent 27, thereby increasing the proportion of fresh air in the air outlet of the first module 1 and further improving the indoor air quality.

[0068] To improve the efficiency of the ventilation mode, optionally, such as Figure 14 and Figure 15 As shown, the second module 2 includes a second housing 26 and a second fan assembly 25 disposed within the second housing 26, and a second air outlet 27 and an exhaust outlet 22 disposed within the second housing 26.

[0069] The second fan assembly 25 is configured to introduce outdoor air (fresh air) into the room through the second air outlet 27 and to exhaust indoor air to the outside through the exhaust outlet 22.

[0070] like Figure 18 As shown, when the indoor unit 100 of the air conditioner is in fresh air mode, outdoor air can be driven by the second fan assembly 25, enter the second housing 26 through the second air vent 27, and then be discharged into the room through the first air vent 21 to refresh the indoor air. Indoor air can also be driven by the second fan assembly 25 into the second housing 26 and then discharged to the outside through the exhaust vent 22, thereby completing the circulation and renewal of indoor air.

[0071] When the first module 1 is placed in the dry area of ​​the bathroom and the second module 2 is placed in the wet area of ​​the bathroom, when the user is not showering, fresh air can directly enter the wet area of ​​the bathroom through the first air vent 21, and the air in the wet area can be exhausted to the outside through the exhaust vent 22.

[0072] like Figure 17 and Figure 18 As shown, when a user is showering, the indoor unit 100 of the air conditioner can simultaneously activate the fresh air mode while in cooling or heating mode. In this mode, the fresh air entering the second housing 26 through the second air vent 27 mixes with the air entering the second housing 26 through the first air vent 21. Under the traction of the first fan assembly 13, the fresh air directly enters the first module 1 and is discharged through the first air outlet 11 of the first module 1, thereby improving the freshness of the indoor air while cooling or heating. Furthermore, this method also prevents fresh air from being discharged into the wet area through the first air vent 21 while the user is showering, avoiding direct airflow onto the body and improving the user's showering experience.

[0073] Optionally, such as Figure 15 and Figure 16 As shown, the second module 2 also includes a second air outlet duct 24 and an air inlet duct 28. The second air outlet duct 24 is connected to the exhaust port 22, and the air inlet duct 28 is connected to the second air outlet 27.

[0074] Optionally, such as Figure 17 and Figure 18 As shown, the second housing 26 includes a first cavity 263, a second cavity 264 and a third cavity 266. The first cavity 263 and the second cavity 264 are connected. The second fan assembly 25 is configured to introduce fresh air into the second cavity 264 and then into the first cavity 263. The second fan assembly 25 is also configured to introduce indoor air into the third cavity 266 and then exhaust it to the outside.

[0075] When the second fan assembly 25 is started, fresh outdoor air can be drawn into the second chamber 264 through the second vent 27 and discharged into the first chamber 263, which is connected to the second chamber 264, for example, through the connecting hole 2621 described below. At the same time, indoor air enters the third chamber 266 through the first vent 21 and is then discharged through the exhaust vent 22.

[0076] When the second fan assembly 25 is not running, the first cavity 263 is still connected to the first air outlet 21. The first fan assembly 13 can draw indoor air into the first cavity 263 through the air duct 4 via the first air outlet 21, and then draw the heated or cooled air into the first housing 12, thereby heating or cooling the indoor air.

[0077] This disclosure does not limit the specific configuration of the first cavity 263, the second cavity 264, and the third cavity 266 in the second housing 26. Optionally, as Figure 17 and Figure 18 As shown, the second housing 26 includes a first partition 262 and a second partition 2535. The first partition 262 divides the interior of the second housing 26 into a first cavity 263 and a connecting cavity 267. The second partition 2535 divides the connecting cavity 267 into the aforementioned second cavity 264 and third cavity 266.

[0078] The first partition 262 is provided with a connecting hole 2621 that connects the first cavity 263 and the second cavity 264. The first cavity 263 is connected to the first module 1 through the air duct 4. The second fan assembly 25 is disposed in the connecting cavity 267. The second air outlet 27 is connected to the second cavity 264, the exhaust outlet 22 is connected to the third cavity 266, and the exhaust outlet 22 is connected to the first air outlet 21.

[0079] With this configuration, the space within the second housing 26 is divided into a first cavity 263 and a connecting cavity 267 by a first partition 262, and the connecting cavity 267 is divided into a second cavity 264 and a third cavity 266 by a second partition 2535. A first heat exchanger 3 is installed in the first cavity 263, and a second fan assembly 25 is installed in the connecting cavity 267. When the second fan assembly 25 is activated, fresh outdoor air can be drawn into the second cavity 264 through the second air vent 27 and discharged into the first cavity 263 through the connecting hole 2621. Simultaneously, indoor air enters the third cavity 266 through the first air vent 21 and is then discharged through the exhaust vent 22.

[0080] Optionally, such as Figure 16As shown, the first air vent 21 includes a first sub-air vent 211 and a second sub-air vent 212 separated by a first partition 262. The first sub-air vent 211 is connected to the first cavity 263, and the second sub-air vent 212 is connected to the third cavity 266. When the indoor unit 100 of the air conditioner is in cooling mode or heating mode, the first fan assembly 13 is started, and indoor air can enter the first cavity 263 through the first sub-air vent 211, and be heated or cooled by the first heat exchanger 3 located in the first cavity 263 to form hot air or cold air, which then enters the first housing 12 through the air duct 4 and is discharged through the first air outlet 11.

[0081] like Figure 17 and Figure 18 As shown, when the fresh air mode is activated in addition to the cooling or heating mode, the second fan assembly 25 operates simultaneously. Indoor air can also enter the third chamber 266 through the second sub-air vent 212 and be discharged through the exhaust vent 22. Fresh air enters the second chamber 264 through the second air vent 27, and then enters the first chamber 263 through the connecting hole 2621. Together with the air entering through the first sub-air vent 211, it is heated or cooled by the first heat exchanger 3 before entering the first housing 12.

[0082] like Figure 18 As shown, when operating the fresh air mode alone, the second fan assembly 25 is activated, while the first fan assembly 13 is not activated. Outdoor fresh air is drawn into the second chamber 264 through the first air vent 21, and then enters the first chamber 263 through the connecting hole 2621. Part of the fresh air can be exhausted into the room through the first sub-air vent 211, while the other part enters the first housing 12 through the air duct 4, and is then exhausted into the room through the first air outlet 11. The indoor air enters the third chamber 266 through the second sub-air vent 212, and is then exhausted to the outside through the exhaust vent 22.

[0083] To further reduce the size of the second module 2, optionally, such as Figure 15 As shown, the second fan assembly 25 includes a second motor 251, a second centrifugal impeller 252, and a second volute 253. The second volute 253 is arranged inside the second housing 26, and the second centrifugal impeller 252 is arranged inside the second volute 253. A second receiving cavity may be formed inside the second volute 253, and the second centrifugal impeller 252 may be arranged in the second receiving cavity. The drive shaft of the second motor 251 is connected to the second centrifugal impeller 252 for driving the second centrifugal impeller 252 to rotate.

[0084] The second volute 253 includes a first sub-volute 2533 located in the second cavity 264 and a second sub-volute 2534 located in the third cavity 266. The second partition 2535 is provided with a through hole for the second centrifugal impeller 252 to pass through. The second partition 2535 and the inner wall of the first sub-volute 2533 enclose each other to form a first volute cavity 2536. The first volute cavity 2536 is connected to the first cavity 263 through a connecting hole 2621, and the first volute cavity 2536 is also connected to the second air outlet 27. The second partition 2535 and the inner wall of the second sub-volute 2534 enclose each other to form a second volute cavity 2537. The second volute cavity 2537 is connected to the first air outlet 21 and the exhaust outlet 22.

[0085] The first sub-volute 2533 is disposed within the second cavity 264, and the second sub-volute 2534 is disposed within the third cavity 266. A through hole is formed on the second partition 2535, through which the second centrifugal impeller 252 passes. The second motor 251 is disposed on the inner wall of the second housing 26. A third partition is disposed within the second centrifugal impeller 252, dividing the second centrifugal impeller 252 into upper and lower parts, which are located in the second cavity 264 and the third cavity 266, respectively.

[0086] A seventh opening 2538 is formed on the first sub-volute 2533. The seventh opening 2538 serves as the air inlet of the first sub-volute 2533 and is arranged corresponding to the end of the second centrifugal impeller 252 away from the second partition 2535. An eighth opening 2539 is formed on the second sub-volute 2534. The eighth opening 2539 serves as the air inlet of the second sub-volute 2534 and is arranged corresponding to the end of the second centrifugal impeller 252 away from the second partition 2535.

[0087] When the second motor 251 drives the second centrifugal impeller 252 to rotate, outdoor air can enter the second chamber 264 through the second vent 27, then enter the first volute 2536 through the seventh opening 2538, and is discharged into the first chamber 263 by the upper part of the second centrifugal impeller 252 through the connecting hole 2621. At the same time, indoor air enters the third chamber 266 through the first vent 21, enters the second volute 2537 through the eighth opening 2539, and is discharged to the outside by the lower part of the second centrifugal impeller 252 through the exhaust port 22. With this configuration, a single centrifugal impeller can be used. By setting different guiding first sub-volutes 2533 and second sub-volutes 2534, indoor air can be guided outward and outdoor air can be guided inward, further reducing the number of parts and the space occupied by the second fan assembly 25, and reducing manufacturing difficulty and cost.

[0088] Optionally, such as Figure 17 and Figure 18As shown, the first volute 2536 is located above the second volute 2537, and the fresh air inlet is located above the exhaust vent 22. Since the second volute 2537 is connected to the first vent 21 and the exhaust vent 22, it is used to exhaust indoor air to the outside through the exhaust vent 22. The first vent 21 is located on the lower side of the second housing 26, that is, the side closer to the room. By placing the second volute 2537 below the first volute 2536, the second volute 2537 can be placed close to the first vent 21, which facilitates the intake of indoor air into the second volute 2537 through the first vent 21.

[0089] By placing the first volute 2536 at the top, a smooth airflow channel can be formed through the second air vent 27 and the connecting hole 2621, allowing outdoor air to be discharged into the first cavity 263 through the first volute 2536, which is more conducive to the layout and design of the airflow path.

[0090] Optionally, such as Figure 15 , Figure 17 and Figure 18 As shown, a filter 6 is installed at the fresh air inlet. Outdoor air can be filtered by the filter 6 before entering the second module 2, thereby ensuring the quality of the air entering the second module 2 and protecting the health of users.

[0091] This disclosure does not limit the specific type of filter 6; for example, filter 6 can be a HEPA filter.

[0092] As a second aspect of this disclosure, an air conditioning unit is provided, which may include the aforementioned indoor air conditioning unit. The air conditioning unit may also include an outdoor air conditioning unit, which may include a compressor, an expansion valve, a second heat exchanger, and related piping. The compressor outlet is configured to selectively connect to either the first heat exchanger 3 or the second heat exchanger, and the expansion valve is disposed in the flow path between the first heat exchanger 3 and the second heat exchanger. When the first heat exchanger 3 is used as a condenser and the second heat exchanger is used as an evaporator, the compressor outlet is connected to the inlet of the first heat exchanger 3, the outlet of the first heat exchanger 3 is connected to the inlet of the expansion valve, the outlet of the expansion valve is connected to the inlet of the second heat exchanger, and the outlet of the second heat exchanger is connected to the compressor inlet.

[0093] When the second heat exchanger is used as a condenser and the first heat exchanger 3 is used as an evaporator, the compressor outlet is connected to the inlet of the second heat exchanger, the outlet of the second heat exchanger is connected to the inlet of the expansion valve, the outlet of the expansion valve is connected to the inlet of the first heat exchanger 3, and the outlet of the first heat exchanger 3 is connected to the compressor inlet. The working principle of the air conditioning unit is well known to those skilled in the art and will not be described in detail here.

[0094] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0095] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0096] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An indoor unit for an air conditioner, characterized in that, It includes the first module, the second module, and the first heat exchanger; The first module and the second module are arranged independently. The first module is provided with a first air outlet, which is used to allow air from the first module to enter the room. The second module is provided with a first air vent and an exhaust vent. The first air vent is suitable for allowing indoor air to enter the second module. The first air vent and the first air outlet are connected by an air duct. The exhaust vent is suitable for connecting to the outside. The first heat exchanger is disposed within the first module or the second module and is configured to heat or cool the air entering from the first air inlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The second module is adapted to be installed in the humid area of ​​the room, and the first air vent is used to allow air from the humid area to enter the second module.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The first module is adapted to be installed in the dry area of ​​the room, and the first air outlet is used to allow air from the first module to enter the dry area.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The first module includes a first housing and a first fan assembly disposed within the first housing; The first fan assembly is used to introduce air from the first air outlet into the room.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The first fan assembly includes a first motor, a first centrifugal impeller, and a first volute. The first volute is arranged inside the first housing, the first motor is arranged inside the first volute, and the drive shaft of the first motor is connected to the first centrifugal impeller for driving the first centrifugal impeller to rotate. The first volute is provided with a first opening and at least one second opening. The first opening is connected to the air duct and is arranged corresponding to the end of the first centrifugal impeller that is axially away from the first motor. The second opening is used as the air outlet of the first volute and is arranged along the radial direction of the first centrifugal impeller. The first housing is provided with a third opening that communicates with the second opening.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, There are two second openings, which are arranged on opposite sides of the first centrifugal impeller.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The first module also includes a first panel configured to be used as part of the ceiling of the interior.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The first module further includes at least one first air outlet duct, one end of which is connected to a corresponding third opening, and the other end of which is connected to the first panel. The first air outlet is disposed on the first panel; or, The first module further includes at least one first air outlet duct, one end of which is connected to a corresponding third opening and the other end of which is connected to the first air outlet. The first air outlet is located on the side of the first air outlet duct that faces the room.

9. The indoor unit of the air conditioner according to claim 7, characterized in that, The first module also includes a lamp heating structure, which is disposed on the side of the first panel facing the room.

10. The indoor unit of an air conditioner according to any one of claims 1-9, characterized in that, The second module includes a second housing and a second fan assembly disposed within the second housing; The second fan assembly is configured to draw air from the second housing through the exhaust port to the outside.

11. The indoor unit of the air conditioner according to claim 10, characterized in that, The second fan assembly includes a second motor, a second centrifugal impeller, and a second volute. The second volute is arranged inside the second housing, the second motor is arranged inside the second volute, and the drive shaft of the second motor is connected to the second centrifugal impeller for driving the second centrifugal impeller to rotate. The second volute is provided with a fourth opening and a fifth opening. The fourth opening serves as the air inlet of the second volute and is arranged corresponding to the end of the second centrifugal impeller that is axially away from the second motor. The fifth opening serves as the air outlet of the second volute and is arranged along the radial direction of the second centrifugal impeller. The fourth opening is connected to the first air outlet, and the fifth opening is connected to the exhaust outlet.

12. The indoor unit of the air conditioner according to claim 10, characterized in that, The second housing is provided with a sixth opening, which is connected to one end of the air duct, and the first heat exchanger is located at the position of the sixth opening.

13. The indoor unit of the air conditioner according to any one of claims 1-9, characterized in that, The second module is provided with a second air vent, which serves as a fresh air inlet and is suitable for introducing fresh outdoor air into the second module.

14. The indoor unit of the air conditioner according to claim 13, characterized in that, The second module includes a second housing and a second fan assembly disposed within the second housing; The second air vent and the exhaust vent are located in the second housing; The second fan assembly is configured to introduce outdoor air into the room through the second air vent and to exhaust indoor air to the outside through the exhaust vent.

15. The indoor unit of the air conditioner according to claim 14, characterized in that, The second housing includes a first cavity, a second cavity, and a third cavity. The first cavity and the second cavity are connected. The second fan assembly is configured to introduce fresh air into the second cavity and then into the first cavity. The second fan assembly is configured to introduce indoor air into the third cavity and then exhaust it to the outside.

16. The indoor unit of the air conditioner according to claim 15, characterized in that, The second enclosure includes a first partition and a second partition; The first partition divides the interior of the second housing into the first cavity and the connecting cavity, and the second partition divides the connecting cavity into the second cavity and the third cavity; The first partition is provided with a connecting hole that connects the first cavity and the second cavity; The first cavity is connected to the first module via the air duct; The second fan assembly is disposed in the communicating cavity, the second air outlet is connected to the second cavity, the exhaust outlet is connected to the third cavity, and the exhaust outlet is connected to the first air outlet.

17. The indoor unit of the air conditioner according to claim 16, characterized in that, The second fan assembly includes a second motor, a second centrifugal impeller, and a second volute. The second volute is arranged inside the second housing, the second centrifugal impeller is arranged inside the second volute, and the drive shaft of the second motor is connected to the second centrifugal impeller for driving the second centrifugal impeller to rotate. The second volute includes a first sub-volute located in the second cavity and a second sub-volute located in the third cavity; The second partition is provided with a through hole for the second centrifugal impeller to pass through. The second partition and the inner wall of the first sub-volute form a first volute cavity. The first volute cavity is connected to the first cavity through the connecting hole, and the first volute cavity is also connected to the second air outlet. The second partition and the inner wall of the second sub-volute form a second volute cavity, which is connected to the first air vent and the exhaust vent.

18. The indoor unit of the air conditioner according to claim 17, characterized in that, The first volute is located above the second volute, and the fresh air inlet is located above the exhaust outlet.

19. The indoor unit of the air conditioner according to claim 16, characterized in that, The first air outlet includes a first sub-air outlet and a second sub-air outlet separated by the first partition. The first sub-air outlet is connected to the first cavity, and the second sub-air outlet is connected to the third cavity.

20. The indoor unit of the air conditioner according to claim 13, characterized in that, A filter is installed at the fresh air inlet.

21. An air conditioning unit, characterized in that, The indoor unit of the air conditioner includes any one of claims 1-20.

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