Air conditioner indoor unit

Abstract

The present invention provides an indoor unit of an air conditioner, comprising: a casing, an air duct is defined inside the casing; an air supply fan, arranged in the air duct, and used for causing external air to flow into the casing and flow out of the casing after flowing through the air duct, so that a negative pressure airflow activity area for the negative pressure airflow activity is formed in the casing; a moisture enrichment part, arranged in the negative pressure airflow activity area, and used for providing moisture to the negative pressure airflow flowing through it when the air supply fan is running; and a humidity regulating fan, arranged on one side of the moisture enrichment part, and having an air outlet direction that is the same as the flow direction of the negative pressure airflow, and used for cooperating with the air supply fan when the air supply fan is running to increase the flow rate of the negative pressure airflow flowing through the moisture enrichment part, so that the moisture enrichment part can quickly release moisture.

Description

Technical Field

[0001] The present invention relates to air conditioning equipment, in particular to an indoor unit of an air conditioner. Background Art

[0002] The indoor unit of the air conditioner installed in the indoor environment can be used to adjust the temperature of the indoor environment. However, when the indoor unit of the air conditioner is running, the indoor air will become relatively dry, which may easily cause discomfort to the user.

[0003] The inventors realized that although an atomizing device can be added to the indoor unit of the air conditioner to increase the humidity of the air supply air flow, the atomizing device has a relatively complex structure and high manufacturing cost, which makes it difficult to promote and apply indoor units of air conditioners with humidification functions on a large scale. Most users would rather choose to install a humidifier separately in the indoor environment to adjust the humidity of the indoor air.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] An object of the present invention is to overcome at least one technical defect in the prior art and provide an air conditioner indoor unit.

[0006] A further object of the present invention is to provide an air conditioner indoor unit with a novel structure and a humidification function, thereby simplifying the structure of the air conditioner indoor unit and reducing the manufacturing cost.

[0007] Another further object of the present invention is to promote the formation of a high-humidity airflow with a higher flow rate and a higher flow rate in the casing of an indoor unit of an air conditioner, thereby improving the humidification effect.

[0008] Yet another further object of the present invention is to optimize the humidification function without affecting the wind noise of the indoor unit of the air conditioner.

[0009] A further object of the present invention is to increase the water content of high humidity air flow and reduce wind resistance in an indoor unit of an air conditioner.

[0010] In particular, the present invention provides an indoor unit of an air conditioner, comprising: a casing, an air duct is defined inside the casing; an air supply fan, arranged in the air duct, for causing external air to flow into the casing and flow out of the casing after flowing through the air duct, so that a negative pressure airflow activity zone for the negative pressure airflow activity is formed in the casing; a moisture enrichment section, arranged in the negative pressure airflow activity zone, for providing moisture to the negative pressure airflow flowing through it when the air supply fan is running; and a humidity regulating fan, arranged on one side of the moisture enrichment section, with an air outlet direction being the same as the flow direction of the negative pressure airflow, for cooperating with the air supply fan when the air supply fan is running to increase the flow rate of the negative pressure airflow flowing through the moisture enrichment section, thereby allowing the moisture enrichment section to quickly release moisture.

[0011] Optionally, a negative pressure vent connected to the external environment is provided on the casing; the negative pressure air flow activity zone is located on the inner side of the negative pressure vent and is connected to the negative pressure vent; and the humidity regulating fan at least partially extends out of the casing through the negative pressure vent to cooperate with the air supply fan to cause external air to flow into the casing from the negative pressure vent and flow through the negative pressure air flow activity zone.

[0012] Optionally, the negative pressure air outlet is located at one lateral end of the casing; the air duct is arranged on the inner side of the negative pressure airflow activity area and is arranged parallel to the negative pressure airflow activity area along the lateral direction of the casing; and the air supply fan is a cross-flow fan, and the humidity regulating fan is an axial flow fan, and the rotation axes of the two are respectively parallel to the lateral direction of the casing.

[0013] Optionally, the moisture enrichment part is an impeller, which is used to enrich moisture by rotating around an axis, and it includes: a hub, on which is provided an axial hole extending through the hub along its thickness direction for the driving shaft of the moisture enrichment part to pass therethrough; and at least one blade, which is formed by extending radially outward from the outer peripheral surface of the hub; and the blade is provided with a water-absorbing material for enriching moisture.

[0014] Optionally, the air conditioner indoor unit also includes: a driving motor, whose output shaft is directly or indirectly connected to the driving shaft of the humidity regulating fan and the driving shaft of the moisture enrichment part, respectively, for driving the humidity regulating fan and the moisture enrichment part to rotate simultaneously.

[0015] Optionally, the output shaft of the drive motor is coaxial and fixedly connected to the drive shaft of the humidity-controlling fan; and the drive shaft of the humidity-controlling fan is coaxial and fixedly connected to the drive shaft of the moisture enrichment part, or is connected through gear meshing transmission.

[0016] Optionally, the outer periphery of the driving shaft of the humidity-controlling fan is provided with a first annular gear; and the outer periphery of the driving shaft of the moisture-enriching part is provided with a second annular gear meshing with the first annular gear; the pitch circle diameter of the second annular gear is larger than the pitch circle diameter of the first annular gear.

[0017] Optionally, there are multiple blades, which are evenly distributed along the circumference of the hub; the angle between the blade surface of each blade and the thickness direction of the hub is 0°.

[0018] Optionally, the blade has a first blade frame and a second blade frame arranged at intervals along the thickness direction of the hub and a connecting blade frame connected between the first blade frame and the second blade frame, so that the blade defines an inner frame area for installing the water-absorbing material.

[0019] Optionally, the air conditioner indoor unit further includes: a moisture supply portion, which includes a water storage container for containing moisture and having a top opening; and the impeller is arranged above the water storage container, and allows the blades to extend into the water storage container from the top opening when rotating around the axis.

[0020] The present invention provides an air conditioner indoor unit with a novel structure and a humidification function. By arranging a moisture enrichment part and a humidity regulating fan in a casing, the humidity regulating fan cooperates with the air supply fan when the air supply fan is running to increase the flow rate of the negative pressure airflow flowing through the moisture enrichment part, so that the moisture enriched in the moisture enrichment part can be quickly released to form a high-humidity airflow. When the high-humidity airflow is mixed with the air supply airflow and blown outward, the air conditioner indoor unit can play a good humidification function. The air conditioner indoor unit of the present invention has the advantages of simple structure and low manufacturing cost, which is conducive to large-scale promotion and application.

[0021] Furthermore, in the indoor unit of the air conditioner of the present invention, when a negative pressure vent for connecting the external environment with the negative pressure air flow activity area is opened on the casing, under the joint action of the air supply fan and the humidity regulating fan, a large amount of air from the external environment of the casing can enter the negative pressure air flow activity area from the negative pressure vent and flow through the moisture enrichment part, thereby prompting the formation of a high-humidity airflow with a higher flow rate and a higher flow rate in the casing of the indoor unit of the air conditioner, thereby improving the humidification effect.

[0022] Furthermore, in the air conditioner indoor unit of the present invention, when the humidification controlling fan is an axial flow fan and the air supply fan is a cross-flow fan, by making the rotation axis of the humidification controlling fan and the rotation axis of the air supply fan parallel to the lateral direction of the casing, respectively, no obvious turbulence phenomenon will be generated in the casing, thereby optimizing the humidification function without affecting the wind noise of the air conditioner indoor unit.

[0023] Furthermore, in the indoor unit of the air conditioner of the present invention, when the moisture enrichment part is provided with a plurality of blades and the angle between the blade surface of each blade and the thickness direction of the hub is 0°, the airflow can flow naturally along the blade surface with almost no path bending, which is beneficial to reducing wind resistance, and the airflow can fully contact with each blade of the moisture enrichment part, and the contact area is large. The airflow flowing through the blades can carry more moisture, which is beneficial to increase the moisture content of the high-humidity airflow, thereby further improving the humidification effect.

[0024] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0026] Figure 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A schematic diagram of the internal structure of an indoor unit of an air conditioner shown in FIG.

[0028] Figure 3 yes Figure 2 A schematic exploded view of the internal structure of an indoor unit of an air conditioner shown;

[0029] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0030] Figure 5 It is an assembly structure diagram of a moisture enrichment part, a humidity-adjusting fan, and a moisture supply part of an air conditioner indoor unit according to another embodiment of the present invention. DETAILED DESCRIPTION

[0031] Refer to the following Figures 1 to 5 To describe the air conditioner indoor unit 10 of the embodiment of the present disclosure. In the description of the present disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0032] Figure 1 is a schematic structural diagram of an air conditioner indoor unit 10 according to an embodiment of the present invention.

[0033] The air conditioner indoor unit 10 is the indoor part of the split room air conditioner, which is used to adjust the indoor air, such as cooling / heating, dehumidification, introduction of fresh air, etc. The technical solution of the present invention can be applied to a wall-mounted air conditioner indoor unit 10 or a vertical air conditioner indoor unit 10, but is not limited thereto, and is particularly suitable for a wall-mounted air conditioner indoor unit 10. The following will take the case where the air conditioner indoor unit 10 is a wall-mounted air conditioner indoor unit 10 as an example to elaborate on the technical solution of the present invention. On the basis of understanding the following embodiments, those skilled in the art should be able to easily expand on other models of the air conditioner indoor unit 10, and this disclosure will not be repeated.

[0034] Figure 2 yes Figure 1 The schematic diagram of the internal structure of the indoor unit 10 of the air conditioner is shown, in which part of the casing 100, such as the cover 102, is hidden. Figure 3 yes Figure 2 Schematic exploded view of the internal structure of the air conditioner indoor unit 10 is shown. Figure 4 yes Figure 3 A partial enlarged view of the middle A. Figure 1-4 As shown, the indoor unit 10 of the air conditioner of the present invention may generally include a casing 100 , an air supply fan 200 , a moisture enrichment portion 310 and a humidity control fan 350 .

[0035] The interior of the housing 100 defines an air duct 110. The air duct 110 is used to define the flow path of the air supply airflow. For example, the housing 100 may be provided with an air inlet 140 and an air outlet 150 connected to its external environment (i.e., indoor environment), and the air duct 110 is formed between the air inlet 140 and the air outlet 150.

[0036] The air supply fan 200 is disposed in the air duct 110, and is used to cause external air to flow into the housing 100 and flow out of the housing 100 after flowing through the air duct 110, so that a negative pressure airflow activity area 120 for negative pressure airflow activity is formed in the housing 100. When the airflow flows through the air duct 110, negative pressure is generated in the space near the air duct 110, resulting in the formation of a negative pressure airflow activity area 120 in the space. When the airflow flows through the air duct 110, the air in the negative pressure airflow activity area 120 forms a negative pressure airflow under the action of negative pressure, and flows toward the air duct 110 to mix with the air supply airflow.

[0037] The moisture enrichment section 310 is disposed in the negative pressure airflow activity area 120, and is used to provide moisture to the negative pressure airflow flowing through it when the air supply fan 200 is running. Since the moisture enrichment section 310 can provide moisture to the negative pressure airflow, when the negative pressure airflow flows through the moisture enrichment section 310, the moisture enrichment section 310 and the moisture contained therein will be separated, so that the negative pressure airflow carries moisture to form a high humidity airflow. These high humidity airflows will mix with the air supply airflow, thereby increasing the humidity of the air supply airflow.

[0038] The humidity control fan 350 is arranged on one side of the moisture enrichment section 310, and its air outlet direction is the same as the flow direction of the negative pressure airflow. It is used to cooperate with the air supply fan 200 when the air supply fan 200 is running to increase the flow rate of the negative pressure airflow flowing through the moisture enrichment section 310, so that the moisture enrichment section 310 can quickly release moisture. The humidity control fan 350 cooperates with the air supply fan 200, which means that the airflow formed by the actuation of the humidity control fan 350 has the same flow direction as the negative pressure airflow formed by the actuation of the air supply fan 200. In other words, under the action of the air supply fan 200, when the airflow flows through the air duct 110, a negative pressure airflow will be formed in the negative pressure airflow activity area 120, and under the additional action of the humidity control fan 350, the flow rate of the negative pressure airflow flowing through the negative pressure airflow activity area 120 can be increased.

[0039] Based on the above structure, the present invention provides an air conditioner indoor unit 10 with a novel structure and a humidification function. By arranging a moisture enrichment part 310 and a humidity control fan 350 in the housing 100, the humidity control fan 350 cooperates with the air supply fan 200 when the air supply fan 200 is running to increase the flow rate of the negative pressure airflow flowing through the moisture enrichment part 310, so that the moisture enriched in the moisture enrichment part 310 can be quickly released to form a high-humidity airflow. When the high-humidity airflow is mixed with the air supply airflow and blown outward, the air conditioner indoor unit 10 can play a good humidification function. With the above structure, compared with the solution of installing an atomizing mechanism for humidification, the air conditioner indoor unit 10 of the present invention has the advantages of simple structure and low manufacturing cost, which is conducive to large-scale promotion and application.

[0040] The negative pressure airflow activity area 120 may be located at one side of the air supply fan 200, and optionally, may be disposed at one side of the air duct 110. The negative pressure airflow activity area 120 may be configured such that the air supply airflow flowing into the air duct 110 from the air inlet 140 and flowing out of the air duct 110 from the air outlet 150 hardly flows through the negative pressure airflow activity area 120.

[0041] The positions of the air inlet 140 and the air outlet 150 can be set according to actual needs, as long as the air duct 110 is unobstructed. For example, the air inlet 140 can be opposite to the air inlet end of the air supply fan 200, and the air outlet 150 can be opposite to the air outlet end of the air supply fan 200. Figure 1 As shown, when the air conditioner indoor unit 10 is a wall-mounted indoor unit, the air inlet 140 is located at the top of the casing 100 , and the air outlet 150 is located at the front lower part of the casing 100 .

[0042] The air conditioner indoor unit 10 disclosed in the present invention can be used for cooling or heating by using a vapor compression refrigeration system. A heat exchanger 400 may be further provided in the housing 100 of the air conditioner indoor unit 10. The heat exchanger 400 and the throttling device are connected to the compressor, the condenser and other refrigeration elements provided in the air conditioner outdoor unit through pipelines to form a vapor compression refrigeration cycle system. Under the action of the air supply fan 200, the indoor air enters the housing 100 through the air inlet 140 of the housing 100, flows through the air duct 110, and forms a supply air flow after completing forced convection heat exchange with the heat exchanger 400, and then blows to the air outlet 150 under the guidance of the air duct 110. The heat exchanger 400 may be, for example, a three-stage heat exchanger or a two-stage heat exchanger.

[0043] In some optional embodiments, an air inlet section located upstream of the heat exchanger 400, an air outlet section located downstream of the heat exchanger 400, and a heat exchange section where the heat exchanger 400 is located may be formed between the air inlet 140 and the air outlet 150. The air inlet section, the heat exchange section, and the air outlet section form an air duct 110. When the air inlet 140 is located at the top of the housing 100, the heat exchanger 400 may be a plate heat exchanger 400, and is located on the inner side of the air inlet 140 and above the air supply fan 200. The moisture enrichment section 310 may be arranged on one lateral side of the air supply fan 200. In this arrangement, the high-humidity airflow formed in the negative pressure airflow activity area 120 will hardly flow through the heat exchanger 400, and the humidity can be preserved to a large extent, thereby exerting a better air humidification effect.

[0044] In some optional embodiments, such as Figure 1 As shown, the housing 100 is provided with a negative pressure vent 130 connected to the external environment. Indoor air can flow from the negative pressure vent 130 into the negative pressure airflow activity area 120, thereby becoming a part of the negative pressure airflow, and increasing the airflow volume of the negative pressure airflow. The negative pressure airflow activity area 120 is located on the inner side of the negative pressure vent 130 and is connected to the negative pressure vent 130. The humidity control fan 350 at least partially extends out of the housing 100 through the negative pressure vent 130, so as to cooperate with the air supply fan 200 to promote external air to flow from the negative pressure vent 130 into the housing 100 and flow through the negative pressure airflow activity area 120.

[0045] It should be noted that the directions or positional relationships indicated by “front”, “back”, “up”, “down”, “top”, “bottom”, “inside”, “outside”, “lateral”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0046] The negative pressure airflow activity area 120 is located inside the negative pressure vent 130, which means that the airflow from the external environment of the housing 100 enters the housing 100 through the negative pressure vent 130 and then flows through the negative pressure airflow activity area 120. By additionally opening the negative pressure vent 130 on the housing 100, the amount of air flowing through the negative pressure airflow activity area 120 can be increased.

[0047] When a negative pressure vent 130 is opened on the casing 100 for connecting the external environment with the negative pressure air flow activity area 120, under the joint action of the air supply fan 200 and the humidity control fan 350, a large amount of air from the external environment of the casing 100 can enter the negative pressure air flow activity area 120 from the negative pressure vent 130 and flow through the moisture enrichment part 310, thereby prompting the casing 100 of the air conditioner indoor unit 10 to form a high-humidity airflow with a higher flow rate and a higher flow rate, thereby improving the humidification effect.

[0048] The positions of the negative pressure vents 130 and the negative pressure airflow activity area 120 can be set according to actual needs, as long as the negative pressure airflow activity area 120 is connected to the external environment of the housing 100 through the negative pressure vents 130. For example, the negative pressure vents 130 can be configured to connect the negative pressure airflow activity area 120 to the external environment of the housing 100 from its top, bottom, front, rear or side.

[0049] In some optional embodiments, such as Figure 1 As shown, the negative pressure vent 130 may be located at one lateral end of the housing 100. Accordingly, the negative pressure air flow activity area 120 is located inside the negative pressure vent 130 and is adjacent to the negative pressure vent 130.

[0050] The air duct 110 is disposed inside the negative pressure air flow activity area 120 and is arranged in parallel with the negative pressure air flow activity area 120 along the lateral direction of the housing 100. That is, relative to the housing 100, along its lateral extension direction, the shell of the housing 100 is sequentially provided with the negative pressure air outlet 130, the negative pressure air flow activity area 120 and the air duct 110 from the outside to the inside.

[0051] The air supply fan 200 is a cross-flow fan, and the humidity control fan 350 is an axial flow fan, and the rotation axes of the two are respectively parallel to the lateral direction of the housing 100. When the air supply fan 200 is running, the areas on both sides of the air supply fan 200 will form negative pressure, thereby generating negative pressure airflow.

[0052] When the humidification fan 350 is an axial flow fan and the air supply fan 200 is a cross-flow fan, by making the rotation axis of the humidification fan 350 and the rotation axis of the air supply fan 200 parallel to the lateral direction of the casing 100, no obvious turbulence phenomenon will be generated in the casing 100, thereby optimizing the humidification function without affecting the wind noise of the air conditioner indoor unit 10.

[0053] By adopting the above structure, the negative pressure generated during the operation of the air supply fan 200 can be fully utilized to form a high-humidity negative pressure airflow, thereby increasing the humidity of the air supply airflow. In addition, the air conditioner indoor unit 10 can install the humidity control fan 350 and the moisture enrichment unit 310 into the casing 100 without increasing the thickness and width of the casing 100, so that the air conditioner indoor unit 10 can increase the humidification function without obvious changes in appearance.

[0054] The moisture enrichment part 310 can be configured as any component or part that can enrich and release moisture. For example, in some embodiments, the moisture enrichment part 310 can include a water-absorbing cloth made of a water-absorbing material. Optionally, the water-absorbing material can be air-permeable. The air conditioner indoor unit 10 can also be further provided with a water source, and the moisture enrichment part 310 can be configured to reciprocate between a position close to the water source and a position away from the water source when the air supply fan 200 is running, thereby periodically enriching and releasing moisture.

[0055] In some optional embodiments, such as Figure 2-4 As shown, the moisture enrichment part 310 can be an impeller, which enriches and releases moisture by rotating around an axis. That is, the moisture enrichment part 310 of this embodiment is controlled to be rotatable around an axis. When the moisture enrichment part 310 rotates, the enriched moisture is thrown out by centrifugal motion, and is released into the negative pressure airflow flowing through, forming a high humidity airflow.

[0056] With the above structure, based on the axial rotation of the moisture enrichment part 310, it can be easier to release moisture to the negative pressure airflow flowing through it, thereby increasing the humidity of the negative pressure airflow flowing through the moisture enrichment part 310 and obtaining a higher air humidification efficiency.

[0057] In this embodiment, the moisture enrichment part 310 may generally include a hub 311 and at least one blade 312. The hub 311 is provided with an axial hole (not shown) penetrating along the thickness direction thereof, so that the driving shaft 313 of the moisture enrichment part 310 can pass through it. The blades 312 are formed by extending radially outward from the outer peripheral surface of the hub 311. The blades 312 are provided with a water-absorbing material (not shown) for enriching moisture, such as a water-absorbing cloth, etc. The position where the driving shaft 313 of the moisture enrichment part 310 is penetrated relative to the hub 311 is the axial hole, which is not marked in the drawings.

[0058] The air conditioner indoor unit 10 further includes a moisture supply unit 320, which includes a water storage device 321 for storing moisture and having a top opening 321a. For example, the water storage device 321 may be a water storage tank.

[0059] The water enrichment part 310 is disposed above the water storage container 321, and allows the blades 312 to extend from the top opening 321a into the water storage container 321 when rotating around the axis. In other words, the blades 312 of the water enrichment part 310 can extend from the top opening 321a of the water storage container 321 into the water storage container 321 to contact the water contained in the water storage container 321, thereby absorbing and enriching the water.

[0060] In some optional embodiments, the air conditioner indoor unit 10 may further include a driving motor 330, whose output shaft is directly or indirectly connected to the driving shaft 351 of the humidification controlling fan 350 and the driving shaft 313 of the moisture enrichment part 310, respectively, for driving the humidification controlling fan 350 and the moisture enrichment part 310 to rotate simultaneously.

[0061] That is to say, the driving motor 330 can drive the humidity control fan 350 and the moisture enrichment part 310 at the same time. That is, the humidity control fan 350 and the moisture enrichment part 310 share the same driving motor 330. Such a configuration can simplify the structure of the driving mechanism, reduce the space occupancy rate of the additional humidity control component, and meet the manufacturing requirements of the miniaturization of the air conditioner indoor unit 10. And under the action of the same driving motor 330, the humidity control fan 350 and the moisture enrichment part 310 can rotate at the same time, which is conducive to simplifying the control logic of the air conditioner indoor unit 10 when loading the humidity control function.

[0062] When the output shaft of the driving motor 330 is directly fixedly connected to the driving shaft 351 of the humidity-controlling fan 350 or the driving shaft 313 of the moisture-enriching part 310, it is considered to be directly connected by transmission. When the output shaft of the driving motor 330 is connected by transmission to the driving shaft 351 of the humidity-controlling fan 350 or the driving shaft 313 of the moisture-enriching part 310 through other transmission components, it is considered to be indirectly connected by transmission.

[0063] In some optional embodiments, such as Figure 3-4 As shown, the output shaft of the drive motor 330 is coaxially and fixedly connected with the drive shaft 351 of the humidity-controlling fan 350. The drive shaft 351 of the humidity-controlling fan 350 is coaxially and fixedly connected with the drive shaft 313 of the moisture-enriching part 310. That is, the output shaft of the drive motor 330 is directly connected to the drive shaft 351 of the humidity-controlling fan 350 by transmission, and the drive shaft 351 of the humidity-controlling fan 350 is connected to the drive shaft 313 of the moisture-enriching part 310 by transmission, so that the output shaft of the drive motor 330 is indirectly connected to the drive shaft 313 of the moisture-enriching part 310 by transmission.

[0064] In other words, while being driven by the driving motor 330 , the humidity-controlling fan 350 can also play a transmission role, transferring the driving force output by the driving motor 330 to the moisture enrichment part 310 , so that the moisture enrichment part 310 and the humidity-controlling fan 350 rotate simultaneously.

[0065] Figure 5 FIG. 1 is an assembly structure diagram of the moisture enrichment unit 310, the humidity control fan 350 and the moisture supply unit 320 of the air conditioner indoor unit 10 according to another embodiment of the present invention. Figure 5 As shown, the driving shaft 351 of the humidity control fan 350 is connected to the driving shaft 313 of the moisture enrichment part 310 through gear meshing transmission. The outer periphery of the driving shaft 351 of the humidity control fan 350 is sleeved with a first annular gear 315. The outer periphery of the driving shaft 313 of the moisture enrichment part 310 is sleeved with a second annular gear 352 meshing with the first annular gear 315. By meshing the first annular gear 315 and the second annular gear 352 with each other, the humidity control fan 350 can transmit the driving force output by the driving motor 330 to the moisture enrichment part 310, so that the moisture enrichment part 310 rotates simultaneously with the humidity control fan 350.

[0066] In some further embodiments, the pitch circle diameter of the second ring gear 352 is greater than the pitch circle diameter of the first ring gear 315. For example, the ratio between the pitch circle diameter of the second ring gear 352 and the pitch circle diameter of the first ring gear 315 may be 1.2 to 2.5, which can obtain a suitable transmission ratio between the second ring gear 352 and the first ring gear 315, so that the flow rate and water content of the high-humidity airflow are maintained within a reasonable range.

[0067] In the above embodiment, the driving motor 330 may be a micro-stepping motor. When the air conditioner indoor unit 10 starts the humidification function, the driving motor 330 is controlled to start to drive the humidity control fan 350 and the moisture enrichment part 310 to rotate, thereby promoting the formation of a negative pressure airflow with a higher flow rate, and at the same time, the blades 312 are cyclically rotated between the position of enriching moisture and the position of releasing moisture, so as to increase the moisture content of the negative pressure airflow.

[0068] The inner wall of the cover 102 of the casing 100 may be provided with a groove for the drive motor 330 to be at least partially assembled therein, thereby fixing the drive motor 330 and assembling the drive motor 330 to the casing 100, thereby improving the structural stability of the air conditioner indoor unit 10.

[0069] The number of blades 312 can be one, two or more. Figure 2 and 3As shown, there are multiple blades 312, and they are evenly distributed along the circumference of the hub 311. The hub 311 can be roughly cylindrical, and its outer peripheral surface is the side surface of the cylinder.

[0070] When a part of the blades 312 extends into the water storage device 321 to collect water, another part of the blades 312 can release water. The plurality of blades 312 can alternately "collect water" and "release water", which is conducive to continuously forming a high-humidity airflow with uniform humidity.

[0071] The angle between the blade surface of each blade 312 and the thickness direction of the hub 311 is 0°. The thickness direction of the hub 311 is parallel to the height direction of the hub 311 column. Since the driving shaft 313 of the moisture enrichment part 310 passes through the shaft hole of the hub 311, when the negative pressure airflow passes through the blade 312 along the thickness direction of the hub 311, the blade surface of the blade 312 is parallel to the flow direction of the negative pressure airflow, and the blade surface hardly blocks the negative pressure airflow.

[0072] When the moisture enrichment section 310 is provided with a plurality of blades 312, and the angle between the blade surface of each blade 312 and the thickness direction of the hub 311 is 0°, the airflow can flow naturally along the blade surface of the blade 312 with almost no path bending, which is beneficial to reducing wind resistance, and the airflow can fully contact with each blade 312 of the moisture enrichment section 310, and the contact area is large. The airflow flowing through the blade 312 can carry more moisture, which is beneficial to further improve the humidification effect.

[0073] The shape of the blade 312 can be set according to actual needs, for example, it can be round, square, triangular or other special shapes.

[0074] In some optional embodiments, such as Figure 2-5 As shown, the blade 312 has a first blade frame 312a and a second blade frame 312b arranged at intervals along the thickness direction of the hub 311, and a connecting blade frame 312c connected between the first blade frame 312a and the second blade frame 312b, so that the blade 312 defines a frame area 312d for installing a water-absorbing material. The frame area 312d is enclosed and defined by the first blade frame 312a, the second blade frame 312b and the connecting blade frame 312c. The water-absorbing material, such as a water-absorbing cloth, can be assembled in the frame area 312d by gluing, bundling or sewing, etc., which is not marked in the drawings.

[0075] In some further embodiments, the connecting leaf frame 312c may be connected between the top of the first leaf frame 312a and the top of the second leaf frame 312b, so as to expand the inner frame area 312d as much as possible and increase the water absorption capacity of a single leaf 312.

[0076] The air conditioner indoor unit 10 may further include a bracket, which extends upward from the side wall of the water storage device 321 of the moisture supply part 320 and is provided with an assembly hole for assembling the driving shaft 313 of the moisture enrichment part 310 to achieve rotatable engagement, thereby supporting the moisture enrichment part 310.

[0077] In some optional embodiments, such as Figure 2-5 As shown, the thickness direction of the hub 311 is parallel to the lateral direction of the housing 100 .

[0078] The water supply part 320 may be fixed in the housing 100, for example, the wall of the water storage device 321 may be fixedly connected to the inner wall of the housing 100. The fixed connection method includes but is not limited to screw connection, welding, bonding and clamping.

[0079] In some optional embodiments, the housing 100 includes a frame 101 and a cover 102 that are assembled with each other. The water supply unit 320 also includes a mounting plate 322, which is fixedly connected to the wall of the water storage device 321 or is an integral piece, and has a connection portion for fixedly connecting to the frame 101. In other words, the water storage device 321 can be indirectly fixed in the housing 100 using the mounting plate 322.

[0080] For example, the mounting plate 322 may include a first vertical plate 322a, a second vertical plate 322b, a first connecting plate 322c connected to the top of the first vertical plate 322a and the top of the second vertical plate 322b, and a second connecting plate 322d connected between the rear end of the first vertical plate 322a and the rear end of the second vertical plate 322b, so as to define a groove with a front opening. The first vertical plate 322a and the second vertical plate 322b are respectively parallel to the front and rear extension directions of the housing 100, and are respectively connected to the rear ends of the two side walls located at the two lateral ends of the water storage device 321. The second vertical plate 322b is located on the inner side of the first vertical plate 322a.

[0081] In some embodiments, Figure 5As shown, the connection part can be arranged on the outer surface of the second vertical plate 322b of the mounting plate 322. The connection part can include a first connection member 322e and a second connection member 322f extending from the outer surface of the second vertical plate 322b toward the inside of the housing 100. The skeleton 101 is correspondingly formed with a first matching part and a second matching part respectively fixedly connected to the first connection member 322e and the second connection member 322f. For example, the first connection member 322e can be a claw, and the first matching part can be a slot, so that the first connection member 322e can extend into it and achieve a snap fit. The second connection member 322f can be in the shape of a plate and have an opening, and the second matching part can be a threaded hole. The second connection member 322f can be fixedly connected to the second matching part by passing a screw through the opening of the second connection member 322f and screwing it into the threaded hole.

[0082] With the above structure, the moisture supply part 320 can be flexibly disassembled according to actual needs, and the operation difficulty of the disassembly process is low, which is conducive to reducing the maintenance cost of the air conditioner indoor unit 10.

[0083] Based on the above embodiments, the present disclosure provides an air conditioner indoor unit 10 with a novel structure and a humidification function. By arranging a moisture enrichment portion 310 and a humidity control fan 350 in the housing 100, the humidity control fan 350 cooperates with the air supply fan 200 when the air supply fan 200 is running to increase the flow rate of the negative pressure airflow flowing through the moisture enrichment portion 310, so that the moisture enriched in the moisture enrichment portion 310 can be quickly released to form a high-humidity airflow. When the high-humidity airflow is mixed with the air supply airflow and blown outward, the air conditioner indoor unit 10 can play a good humidification function. With the above structure, compared with the solution of installing an atomizing mechanism for humidification, the air conditioner indoor unit 10 disclosed in the present disclosure has the advantages of simple structure and low manufacturing cost, which is conducive to large-scale promotion and application.

[0084] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. An air conditioner indoor unit, characterized in that: include: a casing, the interior of which defines an air duct; an air supply fan, arranged in the air duct, for causing external air to flow into the housing and flow out of the housing after passing through the air duct, so that a negative pressure air flow activity area for negative pressure air flow activity is formed in the housing; a moisture enrichment portion, disposed in the negative pressure airflow activity area, for providing moisture to the negative pressure airflow passing therethrough when the air supply fan is in operation; and a humidity-control fan, arranged at one side of the moisture-enriching part, whose air outlet direction is the same as the flow direction of the negative-pressure airflow, and used to cooperate with the air-supply fan when the air-supply fan is running to increase the flow rate of the negative-pressure airflow flowing through the moisture-enriching part, so that the moisture-enriching part can quickly release moisture; The water enrichment part is an impeller, which is used to enrich water by rotating around an axis, and includes: A hub, wherein the hub is provided with an axial hole extending through the hub in a thickness direction thereof, so as to allow the driving shaft of the moisture enrichment portion to pass therethrough; and At least one blade, the blade extending radially outward from the outer peripheral surface of the hub; and a water-absorbing material for enriching water is provided on the blade; The air conditioner indoor unit also includes: A driving motor, whose output shaft is directly or indirectly connected to the driving shaft of the humidity-controlling fan and the driving shaft of the moisture-enriching part, is used to drive the humidity-controlling fan and the moisture-enriching part to rotate simultaneously.

2. The air conditioner indoor unit according to claim 1, characterized in that: The housing is provided with a negative pressure vent connected to the external environment; the negative pressure air flow activity area is located inside the negative pressure vent and connected to the negative pressure vent; and The humidity-adjusting fan at least partially extends out of the casing through the negative-pressure air outlet, so as to cooperate with the air-supplying fan to cause external air to flow from the negative-pressure air outlet into the casing and flow through the negative-pressure airflow activity area.

3. The air conditioner indoor unit according to claim 2, characterized in that: The negative pressure air outlet is located at one lateral end of the housing; the air duct is arranged inside the negative pressure air flow activity area and is arranged in parallel with the negative pressure air flow activity area along the lateral direction of the housing; and The air supply fan is a cross-flow fan, and the humidity control fan is an axial flow fan, and the rotation axes of the two are respectively parallel to the lateral direction of the casing.

4. The air conditioner indoor unit according to claim 3, characterized in that: The output shaft of the driving motor is coaxial with and fixedly connected to the driving shaft of the humidity-controlling fan; and The driving shaft of the humidity-controlling fan is coaxial with and fixedly connected to the driving shaft of the moisture-enriching part, or is connected through gear meshing transmission.

5. The air conditioner indoor unit according to claim 4, characterized in that: A first annular gear is sleeved on the outer periphery of the driving shaft of the humidity-control fan; and A second annular gear meshing with the first annular gear is sleeved on the outer circumference of the driving shaft of the moisture enrichment unit; and a pitch circle diameter of the second annular gear is larger than a pitch circle diameter of the first annular gear.

6. The air conditioner indoor unit according to claim 1, characterized in that: There are multiple blades, which are evenly distributed along the circumference of the hub; the angle between the blade surface of each blade and the thickness direction of the hub is 0°.

7. The air conditioner indoor unit according to claim 1, characterized in that: The blade comprises a first blade frame and a second blade frame arranged at intervals along the thickness direction of the hub and a connecting blade frame connected between the first blade frame and the second blade frame, so that the blade defines an inner frame area for installing the water-absorbing material.

8. The air conditioner indoor unit according to claim 1, characterized in that: Also includes: A water supply unit, comprising a water storage device for containing water and having a top opening; and The impeller is arranged above the water storage container, and allows the blades to extend into the water storage container from the top opening when rotating around the axis.

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