CN218119966U - Indoor unit of air conditioner - Google Patents

Abstract

This application relates to the technical field of air conditioning, and discloses an air conditioner indoor unit, which includes a casing, a heat exchange assembly, a double cross-flow air duct assembly and a humidification assembly. The casing is provided with an air inlet, and the heat exchange assembly is arranged on the air outlet side of the air inlet. The double cross-flow air duct assembly is arranged in the casing and is located on the leeward side of the heat exchange assembly, at least defining three air ducts arranged side by side in the horizontal direction; The humidified air flow can flow toward the direction of the adjacent air duct, so that the air humidity of the air outlet of the indoor unit of the air conditioner is uniform. Humidify the heated airflow through the humidification component located in the middle air duct to solve the problem of indoor drying; among them, after the humidification component located in the middle air duct humidifies the air flow, the air flow flows out from the air duct and connects with the air ducts on both sides The airflow blown out is mixed, so that the humidity of the airflow blown out from the air outlet of the air conditioner indoor unit can be ensured to be uniform, thereby improving user experience.

Description

air conditioner indoor unit

technical field

The present application relates to the technical field of air conditioning, for example, to an air conditioning indoor unit.

Background technique

At present, the air conditioner cabinet machine includes a casing and a double cross-flow air duct assembly arranged in the casing. The casing includes a front panel part and a rear panel part connected to the front panel part. An evaporator is arranged between the components, and a single electric heater is arranged between the evaporator and the air inlet end of the double cross-flow air duct assembly and in the middle of the double cross-flow air duct assembly, and a single electric heater is installed between the single electric heater and the evaporator There is a preset distance reserved.

The single electric heater can effectively increase the heating capacity of the air conditioner, but when the hot air heated by the single electric heater is blown into the room, it is easy to cause the problem of indoor drying.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

An embodiment of the present disclosure provides an air conditioner indoor unit, so that the humidity of the air output from the air conditioner indoor unit is uniform, and user experience is improved.

In some embodiments, the air conditioner indoor unit includes: a casing and a heat exchange assembly, the casing is provided with an air inlet, and the heat exchange assembly is arranged on the air outlet side of the air inlet; it also includes:

The double cross-flow air duct assembly is arranged in the casing and is located on the leeward side of the heat exchange assembly, at least defining three air ducts arranged side by side in the lateral direction;

The humidifying assembly is arranged in the double cross-flow air duct assembly, and is located in the middle air duct, so that the humidified airflow can flow in the direction of the adjacent air duct, so that the humidity of the air outlet of the air outlet of the air conditioner indoor unit uniform.

In some embodiments, the heat exchange assembly includes a first heat exchange element and a second heat exchange element disposed opposite to each other,

Wherein, the first heat exchanging element and the second heat exchanging element correspond to two air ducts arranged on both sides respectively, and the air duct located in the middle communicates with the adjacent air duct, so that the adjacent air duct The air flow is mixed so that the air outlet temperature and humidity of the air outlet of the indoor unit of the air conditioner are uniform.

In some embodiments, the end portion of the first heat exchange element opposite to the second heat exchange element defines an accommodating space, and the air conditioner indoor unit further includes:

The heating element is arranged vertically in the accommodating space and is arranged corresponding to the middle air duct; under the heating condition, part of the air entering the casing through the air inlet passes through the heating element Heated, flows into the air duct in the middle.

In some embodiments, the humidification component includes:

a water storage tank, located within the central air duct; and,

The atomization generating device communicates with the water storage tank, so that the water in the water storage tank forms water mist and is discharged into the air duct in the middle, so that the water mist flows out of the air duct together with the air flow in the air duct.

In some embodiments, the double cross-flow air duct assembly includes:

a volute comprising opposite first and second sidewalls, the first and second sidewalls defining a first air passage;

the first volute tongue defines a second air passage with the first side wall of the volute;

the second volute tongue defines a third air passage with the second side wall of the volute;

Wherein, the second air passage and the third air passage are located on both sides of the first air passage, and the side wall of the volute is configured with a plurality of ventilation holes to communicate with the first air passage and the third air passage. The second air passage, the first air passage and the third air passage.

In some embodiments, the double cross-flow air duct assembly further includes:

The upper cover plate is arranged on the top of the volute to cover the top of the enclosed air duct;

Wherein, at a position corresponding to the first air duct, the upper surface of the upper cover is recessed toward the first air duct to form the water storage tank.

In some embodiments, the double cross-flow air duct assembly further includes:

The lower cover plate is arranged at the bottom of the volute to cover the bottom of the enclosed air duct;

Wherein, the lower cover plate is configured with a water receiving tank to collect and discharge incompletely atomized liquid droplets in the air duct.

In some embodiments, the volute is a U-shaped structure, and the volute further includes:

an open end facing the heating element with an open area covering the heating element;

The closed end is configured with a plurality of air outlet holes, so that the airflow of the first air channel is blown out from the air outlet holes.

In some embodiments, the air conditioner indoor unit also includes:

The first cross-flow fan is arranged in the casing and is located in the first air passage to drive the air flow in the first air passage;

Wherein, the humidifying component is located on the air inlet side of the first cross-flow fan.

In some embodiments, the first cross-flow fan is arranged vertically, and the distance from the axis to the closed end is smaller than the distance from the axis to the open end, so as to extend the air duct on the air inlet side of the first cross-flow fan The length is such that the airflow of the adjacent air passage flows into the first air passage for humidification and then blows out.

The air conditioner indoor unit provided by the embodiments of the present disclosure can achieve the following technical effects:

The airflow after heat exchange by the heat exchange component flows into the air duct surrounded by the double cross-flow air duct component, and the heated airflow is humidified by the humidification component located in the middle air duct to solve the problem of indoor drying; among them, the humidification component located in the middle air duct After the humidifying component of the duct humidifies the airflow, the airflow can flow to the air ducts on both sides after it flows out from the air duct, and mix with the airflow blown from the air ducts on both sides. In this way, the airflow blown out from the air outlet of the air conditioner indoor unit Humidity is uniform, improving user experience.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

Fig. 1 is a schematic cross-sectional structure diagram of the air conditioner indoor unit provided by an embodiment of the present disclosure;

Fig. 2 is a schematic structural diagram of the air conditioner indoor unit provided by an embodiment of the present disclosure;

Fig. 3 is a structural schematic diagram of another viewing angle of the air conditioner indoor unit provided by an embodiment of the present disclosure;

Fig. 4 is a structural schematic diagram of another viewing angle of the air conditioner indoor unit provided by an embodiment of the present disclosure;

Fig. 5 is a structural schematic diagram of another viewing angle of the air conditioner indoor unit provided by an embodiment of the present disclosure;

Fig. 6 is a schematic cross-sectional structure diagram of the volute provided by an embodiment of the present disclosure.

Reference signs:

10: casing; 101: air inlet; 102: air outlet; 103: air inlet grill; 20: heat exchange component; 201: first heat exchange element; 202: second heat exchange element; 203: accommodation space; 301 : volute; 3011: first side wall; 3012: second side wall; 3013: open end; 3014: closed end; 3015: lap joint; 3016: air outlet; 302: first volute tongue; 303: second Two worm tongues; 304: the first air duct; 305: the second air duct; 306: the third air duct; 307: the upper cover; 308: the lower cover; 3081: the water tank; 309: the first cross-flow fan; 310: second cross-flow fan; 311: third cross-flow fan; 312: swing blade; 40: heating element; 50: humidification component; 501: water storage tank; 502: atomization generator.

detailed description

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear" etc. are based on the orientations or positional relationships shown in the drawings. Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the embodiments of the present disclosure according to specific situations.

In addition, the terms "setting", "connecting" and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

It should be noted that, in the case of no conflict, the embodiments and the features in the embodiments of the present disclosure may be combined with each other.

As shown in FIG. 1 to FIG. 6 , an embodiment of the present disclosure provides an air conditioner indoor unit, including a casing 10, a heat exchange assembly, a double cross-flow air duct assembly, and a humidification assembly 50. The casing 10 is provided with an air inlet 101 for heat exchange. The assembly 20 is arranged on the air outlet side of the air inlet 101; the double cross-flow air passage assembly is arranged in the casing 10 and is located on the leeward side of the heat exchange assembly 20, at least defining three air passages arranged side by side in the horizontal direction; the humidification assembly 50 is arranged The double cross-flow air duct assembly is located in the middle air duct, so that the humidified airflow can flow in the direction of the adjacent air duct, so that the air humidity of the air outlet 102 of the air conditioner indoor unit is uniform.

With the air-conditioning indoor unit provided by the embodiment of the present disclosure, the airflow after heat exchange by the heat exchange component 20 flows into the air duct enclosed by the double-flow air duct assembly, and the heated airflow is humidified by the humidifying component 50 located in the middle air duct , to solve the problem of indoor drying; wherein, after the humidifying component 50 located in the middle air duct humidifies the air flow, the air flow can flow to the air ducts on both sides after it flows out from the air duct, and mix with the air flow blown out from the air ducts on both sides. In this way, the humidity of the airflow blown out from the air outlet 102 of the air conditioner indoor unit can be guaranteed to be uniform, thereby improving user experience.

Herein, the air-conditioning indoor unit may be an air-conditioning cabinet machine, and the front side of the casing 10 is provided with an air outlet 102 , and the rear side is provided with an air inlet 101 , wherein the heat exchange component 20 is arranged close to the air inlet 101 . Optionally, the heat exchange component 20 is a heat exchanger. After the air is inhaled through the air inlet 101 , flows through the heat exchange component 20 , and exchanges heat with the heat exchange component 20 , the temperature increases or decreases to achieve the purpose of heating or cooling. In the heating condition, the humidification component 50 can be used to humidify the heated airflow, so as to solve the problem of indoor drying caused by the humidity reduction of the airflow after heating.

The heat exchange assembly 20 is arranged along the direction of the intake grill 103 of the air inlet 101 , so that the airflow entering from the intake grill 103 exchanges heat with the heat exchange assembly 20 . For example, the heat exchange assembly 20 is in an arc shape to match the direction of the air intake grill 103 .

The double cross-flow air duct assembly is located on the air outlet side of the heat exchange assembly 20 and defines three air ducts arranged side by side in the transverse direction. Wherein, the air inlet area, air outlet area and ventilation area of the three air ducts may be partly the same. In particular, the two air ducts on both sides have the same structure. In this way, the indoor unit of the air conditioner has a symmetrical structure, which is not only convenient for processing, but also more beautiful.

It should be noted that the "ventilation area" referred to in this article refers to the ventilation area of the cross-section of the air duct.

Optionally, the heat exchanging assembly 20 includes a first heat exchanging element 201 and a second heat exchanging element 202 disposed opposite to each other, wherein the first heat exchanging element 201 and the second heat exchanging element 202 respectively correspond to two The air duct in the middle communicates with adjacent air ducts, so that the airflow of adjacent air ducts can be mixed, so that the air temperature and humidity of the air output from the air outlet 102 of the indoor unit of the air conditioner are uniform.

The decibels of the first heat exchange element 201 and the second heat exchange element 202 correspond to the two outermost air ducts formed by the double cross-flow air duct assembly. After heat exchange through the first heat exchange element 201 and the second heat exchange element 202 The air flow is blown out through the corresponding air duct, and communicates with the adjacent air duct through the middle air duct, and the heat-exchanged air flow flows to the middle air duct to mix, which can effectively avoid the heat transfer efficiency difference of the heat exchange elements. As a result, the outlet air temperature of the corresponding two air ducts is different, and the outlet air temperature between adjacent air ducts can be made similar through the middle air duct, so as to achieve the purpose of uniform outlet air temperature, and can also make the air outlet of the air conditioner indoor unit The air outlet 102 has even air humidity, which improves user experience.

Optionally, the first heat exchange element 201 is a heat exchanger, and the second heat exchange element 202 is a heat exchanger. The first heat exchanging element 201 and the second heat exchanging element 202 are arranged oppositely and along the direction of the air intake grill 103 . Optionally, the first heat exchanging element 201 and/or the second heat exchanging element 202 has an arc structure to match the orientation of the air intake grill 103 .

The first heat exchanging element 201 and the second heat exchanging element 202 respectively correspond to two air ducts on both sides, and the airflow after heat exchange by the first heat exchanging element 201 and the second heat exchanging element 202 is respectively blown out from the corresponding air ducts. In practical applications, the power of the first heat exchange element 201 and the second heat exchange element 202 is generally the same, but after a certain period of use, the first heat exchange element 201 and the second heat exchange element 202 have refrigerant leakage , surface area dust, impurity shielding, etc., resulting in different heat exchange efficiencies between the first heat exchange element 201 and the second heat exchange element 202, which in turn leads to the The temperature of the airflow is different, so that the temperature of the airflow blown by the two air ducts is different, which affects the experience of the user. The air duct in the middle is connected with the adjacent air duct, so that at least the airflow in the air ducts on both sides can flow to the air duct in the middle, and the mixed air flow flows out from the air duct in the middle, which can reduce the air flow in the air ducts on both sides. The difference in the outlet air temperature, that is, to make the temperature of the airflow blown out by the three air ducts transition smoothly so that the outlet air temperature of the air outlet 102 is uniform.

In addition, after being humidified by the humidifying component 50, the airflow in the middle airway can also flow into the adjacent airway and mix with the airflow in the corresponding airway, so as to increase the humidity of the airflow in the airway, so that the air outlet 102 of the indoor unit of the air conditioner is humidified. evenly.

Optionally, the opposite ends of the first heat exchange element 201 and the second heat exchange element 202 define an accommodating space 203, and the air conditioner indoor unit further includes: a heating element 40, which is arranged vertically in the accommodating space 203, And it is set corresponding to the air duct in the middle; under the heating condition, part of the air entering the casing 10 through the air inlet 101 is heated by the heating element 40 and flows into the air duct in the middle.

The first heat exchanging element 201 and the second heat exchanging element 202 are arranged symmetrically, and a certain distance is reserved between opposite ends to define an accommodating space 203 , and the heating element 40 is arranged in the accommodating space 203 extending vertically middle. In this way, the airflow entering the casing 10 from the air inlet 101 partly flows through the first heat exchange element 201 , partly flows through the heating element 40 , and partly flows through the second heat exchange element 202 . Wherein, the airflow flowing through the heating element 40 flows into the middle air duct corresponding to the heating element 40, and is humidified in the humidifying assembly 50 passing through the middle air duct, so that the humidified airflow can still maintain the corresponding humidity, and is blown out to the room After the environment, meet the needs of users and improve user experience.

Wherein, in the heating working condition, the heating element 40 works, and part of the airflow entering the casing 10 from the air inlet 101 directly flows to the heating element 40, and the airflow is unobstructed, so that the flow rate flowing through the heating element 40 is more, so that the heating element 40 exerts high heating performance and helps to improve the heating effect of the air conditioner.

In cooling mode, the heating element 40 does not work, the air flow flows through the heating element 40 into the middle air duct, the air flow in the adjacent air duct flows into the middle air duct, and mixes with the air flow in the middle air duct, so that from the middle The cold air blown from the air duct is relatively soft, which helps to improve the user experience.

In practical applications, the heating element 40 is detachably connected to the casing 10 and is electrically connected to the electric control module of the air conditioner indoor unit, so as to control the operation of the heating element 40 through the electric control module.

Alternatively, the heating element 40 may be a PTC heater.

Optionally, the humidifying assembly 50 includes: a water storage tank 501 located in the middle air duct; and an atomization generating device 502 communicated with the water storage tank 501 so that the water in the water storage tank 501 forms water mist and is discharged to the middle air duct. In the duct, the water mist flows out of the duct together with the airflow in the duct.

The water storage tank 501 is located in the air duct in the middle, and stores a certain amount of water. The water in the water storage tank 501 is atomized by the atomization generating device 502, and then discharged into the air duct in the middle, and mixed with the air flow in the air duct to increase the humidity. . In particular, after the airflow in the middle air duct is heated by the heating element 40, the humidity of the airflow decreases due to heating. The humidity of the heated air can be increased by the humidifying component 50 .

In practical applications, no matter whether the air conditioner indoor unit is in the heating or cooling working condition, the humidifying component 50 can play a role of humidifying. Moreover, in the heating condition, especially when the heating element 40 is working, the humidifying component 50 humidifies the airflow acting on the middle air duct, so as to ensure the humidity of the airflow blown from the middle air duct, and avoid indoor drying. In addition, the atomization generating device 502 can be implemented using existing technologies, and its principle and structure will not be described in detail here.

Optionally, the double cross-flow air channel assembly includes: a volute 301 including opposite first side walls 3011 and second side walls 3012, the first side walls 3011 and the second side walls 3012 define the first air channel 304; A volute tongue 302 defines a second air passage 305 with the first side wall 3011 of the volute 301; a second volute tongue 303 defines a third air passage 306 with the second side wall 3012 of the volute 301; wherein, the first The second air passage 305 and the third air passage 306 are located on both sides of the first air passage 304, and the side wall of the volute 301 is configured with a plurality of ventilation holes to communicate with the first air passage 304, the second air passage 305 and the first air passage 304. The air duct 304 and the third air duct 306 .

The first heat exchange element 201 is disposed at the air inlet end of the second air duct 305 , and part of the air flow enters the second air duct 305 after heat exchange with the first heat exchange element 201 . Similarly, the second heat exchange element 202 is disposed at the air inlet end of the third air duct 306 , and part of the air flow enters the third air duct 306 after exchanging heat with the second heat exchange element 202 . The air flow in the second air channel 305 and the third air channel 306 flows into the first air channel 304 through the ventilation hole on the side wall of the volute 301 and mixes, so as to improve the uniformity of the air flow.

The first side wall 3011 and the second side wall 3012 of the volute 301 have the same structure and are arranged symmetrically, and the first volute tongue 302 and the second volute tongue 303 have the same structure and are arranged symmetrically. The air duct 306 is arranged symmetrically with respect to the first air duct 304, and helps to reduce the gas flow difference between the second air duct 305 and the third air duct 306 when the air-conditioning indoor unit is working, and keeps the second air duct 305 and the third air duct 306. The pressure in the third air passage 306, thereby ensuring the flow of gas flowing into the first air passage 304 from the second air passage 305 and the third air passage 306, can not only average the gas temperature of the two air passages, but also improve the temperature of the air conditioner. The stability of the indoor unit during work, avoid shaking.

Optionally, the plurality of ventilation holes on the side wall of the volute 301 are preferentially arranged regularly. In this way, turbulence is avoided when the air flow is flowing.

Optionally, along the blowing direction of the airflow in the air duct, the diameter of the ventilation hole gradually increases from the air inlet end to the air outlet end. In this way, on the one hand, the stability of the air flow process can be improved, and on the other hand, it can cooperate with the cross-flow fan to increase the flow rate of the air flow in the second air passage 305 and the third air passage 306 near the air outlet, and further improve the air outlet 102. Uniformity of airflow.

In the present application, the first volute tongue 302 and the second volute tongue 303 are respectively connected with swing blades 312 to adjust the air outlet direction of the corresponding air duct.

Optionally, the double cross-flow air duct assembly also includes a second cross-flow fan 310 and a third cross-flow fan 311; the second cross-flow fan 310 is vertically arranged in the second air duct 305; the third cross-flow fan 311 is vertically It is arranged in the third air duct 306 and symmetrically arranged with the second cross-flow fan 310 . The air flow in the second air passage 305 is driven by the second cross-flow fan 310 , and the air flow in the third air passage 306 is driven by the third cross-flow fan 311 . The second cross-flow fan 310 and the third cross-flow fan 311 are arranged symmetrically, which helps to improve the stability of the air conditioner indoor unit.

In the case that there is no cross-flow fan in the first air duct 304 of the air-conditioning indoor unit, the suction force of the second cross-flow fan 310 and the third cross-flow fan 311 acts on the first cross-flow fan through the ventilation hole on the side wall of the volute 301. The air duct 304 is such that the airflow in the first air duct 304 is passively sucked in and blown out.

Optionally, the air inlet area of the first air channel 304 is smaller than the air inlet area of the second air channel 305 and smaller than the air inlet area of the third air channel 306 . In this way, the gas flow rate for heat exchange with the first heat exchange element 201 and the second heat exchange element 202 can be ensured, thereby ensuring the heating or cooling effect of the air conditioner.

Optionally, the ventilation area of the first air passage 304 is smaller than the ventilation area of the second air passage 305 and smaller than the ventilation area of the third air passage 306 . In this way, on the one hand, the air volume of the second air duct 305 and the third air duct 306 can be ensured, and excessive gas can be avoided from flowing from the second air duct 305 and the third air duct 306 to the first air duct 304, resulting in relatively large air flow. Large fluctuations and turbulent flow will affect the stability of the wind. Optionally, the air inlet area of the second air passage 305 is equal to the air inlet area of the third air passage 306 .

Optionally, one end of the first heat exchange element 201 is connected to the volute 301, and the other end is connected to the first volute tongue 302 to enclose the second air channel 305; and/or, one end of the second heat exchange element 202 is connected to the The volute 301 is connected, and the other end is connected with the second volute tongue 303 to define a third air duct 306 .

Optionally, the double cross-flow air channel assembly also includes: an upper cover plate 307, which is arranged on the top of the volute 301 to cover the top of the air channel defined by the enclosure; wherein, the upper surface of the upper cover plate 307 corresponds to the first wind The position of the channel 304 is recessed toward the first air channel 304 to form a water storage tank 501 .

The upper cover plate 307 can not only cover the enclosed air duct, but also form the water storage tank 501 in a recessed structure, which reduces the number of installed accessories and saves installation time.

In addition, the upper surface of the upper cover plate 307 is inwardly recessed at the position corresponding to the first air duct 304 to form a water storage tank 501. The fog can move downward under the action of gravity, and mix evenly with the airflow while moving, so as to improve the mixing uniformity of the two.

Optionally, the double cross-flow air channel assembly also includes: a lower cover plate 308, which is arranged at the bottom of the volute 301 to cover the bottom of the air channel limited by the enclosure; wherein, the lower cover plate 308 is configured with a water receiving groove 3081 to collect Incompletely atomized droplets in the air duct are discharged.

The lower cover plate 308 can not only cover the enclosed air duct, but also can collect the incompletely atomized liquid droplets in the air duct through the structured water receiving tank 3081, or after contacting with impurities in the air flow, under the action of gravity , dripping to the water droplets on the lower cover plate 308 .

The water receiving tank 3081 is provided with a drain port, which connects the pipeline outside, so as to discharge the water droplets collected by the water receiving tank 3081 .

In practical application, the water receiving groove 3081 of the lower cover plate 308 is not only set corresponding to the air duct to collect water droplets dripping in the air duct, but also can be set corresponding to the heat exchange component 20 to collect condensed water dripping from the heat exchanger.

Optionally, the water receiving groove 3081 may be arranged along the direction of the heat exchange assembly 20 . The water droplets in the air duct drop to the lower cover plate 308 and flow to the water receiving tank 3081. The condensed water dripped from the heat exchange component 20 directly drops to the water receiving tank 3081, and then flows into the external pipe from the water receiving tank 3081 to discharge the air conditioner indoor unit.

Optionally, the volute 301 is a U-shaped structure, and the volute 301 also includes an open end 3013 and a closed end 3014, the open end 3013 faces the heating element 40 and the opening area covers the heating element 40; the closed end 3014 is configured with a plurality of air outlets 3016, so that the airflow of the first air channel 304 is blown out from the air outlet hole 3016.

The open end 3013 of the volute 301 faces the heating element 40 so that the airflow passing through the heating element 40 flows into the first air channel 304 defined by the volute 301 . It should be noted that the opening area of the opening end 3013 can be understood as the air intake area of the first air duct 304 . The open area of the open end 3013 covers the heating element 40 . In this way, all the airflow passing through the heating element 40 can flow into the first air duct 304 .

In practical applications, the heating element 40 can be located inside the opening of the opening end 3013 or outside the opening of the opening end 3013 , as long as the opening area of the opening end 3013 covers the heating element 40 .

The closed end 3014 is configured with a plurality of air outlet holes 3016 so that the airflow flowing into the first air passage 304 from the open end 3013 can be blown out through the air outlet holes 3016 to realize the circulation of the airflow in the first air passage 304 .

Optionally, the two edges of the opening end 3013 are respectively bent and extended to form overlapping portions 3015, and are respectively connected to the first heat exchange element 201 and the second heat exchange element 202, so that the heat flowing through the accommodation space 203 The airflow flows into the first air duct 304 .

The two edges of the opening end 3013 are respectively the edge of the first side wall 3011 of the volute 301 and the edge of the second side wall 3012 of the volute 301, and the two edges are respectively bent and extended outward to form an overlapping portion 3015, here for For ease of description and distinction, the overlapping portions 3015 defining the two edges are respectively the first overlapping portion 3015 and the second overlapping portion 3015 . Wherein, the first overlapping portion 3015 is connected with the first heat exchange element 201, and the second overlapping portion 3015 is connected with the second heat exchange element 202. In this way, the two overlapping parts 3015 are trumpet-shaped, so that all the airflow flowing in from the accommodating space 203 flows into the open end 3013 of the volute 301 , that is, flows into the first air duct 304 .

In addition, the first overlapping portion 3015 is connected to the first heat exchange element 201 , and the second overlapping portion 3015 is connected to the second heat exchange element 202 , which also helps to improve the stability of the volute 301 . Optionally, the first overlapping portion 3015 is connected to the edge of the first heat exchange element 201 , and the second overlapping portion 3015 is connected to the edge of the second heat exchange element 202 . In this way, the overlapping portion 3015 is prevented from affecting the airflow flowing through the heat exchange element, and the overlapping portion 3015 is prevented from obstructing the airflow.

Optionally, the air outlet holes 3016 are elongated and extended in the transverse direction, so that the airflow flowing out from the air outlet holes 3016 is mixed with the airflow flowing out from the second air duct 305 and the third air duct 306 to evenly discharge air. wind.

The air outlet hole 3016 that is elongated and extends in the transverse direction, the airflow blown from the air outlet hole 3016 diffuses along the lateral direction to both sides, which helps to make the airflow flowing out from the air outlet hole 3016 compatible with the second air duct 305 and the second air duct 305. The airflows flowing out of the three air ducts 306 are mixed, so as to achieve the purpose of uniform airflow from the air outlets 102 of the air conditioner indoor unit.

Optionally, a plurality of air outlet holes 3016 can be arranged regularly, which helps the first air channel 304 to evenly output air. Optionally, a plurality of outlet holes 3016 may also be randomly arranged.

Optionally, the closed end 3014 is configured with multiple air outlet parts, and the air outlet part includes a plurality of air outlet holes 3016, wherein the air outlet holes 3016 of adjacent air outlet parts are arranged correspondingly or alternately.

It should be noted that the shape and arrangement direction of the air outlet holes 3016 are not limited to the elongated structure mentioned in this application, which is arranged along the transverse direction. The quantity, shape and setting direction of the air outlet holes 3016 can be selected according to the actual situation.

Optionally, the air-conditioning indoor unit further includes: a first cross-flow fan 309, which is arranged in the casing 10 and is located in the first air duct 304 to drive the air flow in the first air duct 304; wherein, the humidifying assembly 50 Located on the air inlet side of the first cross-flow fan 309 .

In the case where the first cross-flow fan 309 is located in the middle air passage, that is, the first air passage 304, the first cross-flow fan 309 makes the first air passage 304 actively suck and blow out, thus helping to speed up the first air passage. The airflow velocity in the air duct 304. The humidifying component 50 is located on the air inlet side of the first cross-flow fan 309, which helps the air humidified by the humidifying component 50 to be blown out into the room through the first cross-flow fan 309 against gravity under the suction force of the first cross-flow fan 309. Helps to increase the humidity value of the blown air stream.

Optionally, the first cross-flow fan 309 is vertically arranged in the first air duct 304 . Wherein, the first cross-flow fan 309 is preferentially disposed near the air outlet end of the first air duct 304 . In this way, the first cross-flow fan 309 can suck the air outside the air-conditioning indoor unit into the first air duct 304, and can also suck the airflow of the adjacent air duct into the first air duct 304 to match the air flow in the first air duct 304. Mixing is carried out, and then the purpose of uniform temperature and humidity of the air outlet 102 is achieved.

The second cross-flow blower 310 and the third cross-flow blower 311 are located at the air inlet side of the first cross-flow blower 309, like this, contribute to the second cross-flow blower 310/the third cross-flow blower 311 and the first cross-flow blower 309 Cooperate with each other, that is, the second cross-flow fan 310/the third cross-flow fan 311 blows out the airflow, and the first cross-flow fan 309 sucks in the airflow, so that the airflow in the second air passage 305/third air passage 306 flows toward the first air passage. The flow inside the 304 is smooth to prevent turbulent flow.

Optionally, the first cross-flow fan 309 is vertically arranged, and the distance from its axis to the closed end 3014 is smaller than the distance from its axis to the open end 3013, so as to extend the length of the air duct on the air inlet side of the first cross-flow fan 309, so that The airflow of the adjacent air passage flows into the first air passage 304 to be humidified and then blows out.

Here, “the distance from the axis of the first cross-flow fan 309 to the closed end 3014 is smaller than the distance from the axis to the open end 3013 ” can be understood as: the first cross-flow fan 309 is arranged close to the closed end 3014 . In this way, the length of the air duct on the air inlet side of the first cross-flow fan 309 can be extended, so that the ventilation holes on the side wall of the volute 301 are located on the air inlet side of the first cross-flow fan 309 as much as possible. When the first cross-flow fan 309 is working, the airflow of the adjacent air passage can be sucked into the first air passage 304 through the ventilation hole and mixed with the air flow in the first air passage 304, and blow out; The mixing effect of the airflow in the air duct and the airflow in the adjacent air duct.

Optionally, the cross-sectional area of the first cross-flow fan 309 is smaller than the cross-sectional area of the second cross-flow fan 310 and/or the cross-sectional area of the third cross-flow fan 311 .

It can be understood that: within the same time period, the air flow rate of the first cross-flow fan 309 is smaller than that of the second cross-flow fan 310 , and/or is also smaller than the air flow rate of the third cross-flow fan 311 . In this way, the air conditioner indoor unit still uses the second air duct 305 and the third air duct 306 as the main air outlet ducts. The first air passage 304 mixes the airflow in the second air passage 305 and the third air passage 306, and plays the role of transitioning the outlet air temperature and humidity of the second air passage 305 and the third air passage 306, so that the air outlet 102 The purpose of uniform air temperature and humidity.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An air conditioner indoor unit, comprising a casing and a heat exchange assembly, the casing is provided with an air inlet, and the heat exchange assembly is arranged on the air outlet side of the air inlet; it is characterized in that it also includes: The double cross-flow air duct assembly is arranged in the casing and is located on the leeward side of the heat exchange assembly, at least defining three air ducts arranged side by side in the lateral direction; The humidifying assembly is arranged in the double cross-flow air duct assembly, and is located in the middle air duct, so that the humidified airflow can flow in the direction of the adjacent air duct, so that the humidity of the air outlet of the air outlet of the air conditioner indoor unit uniform. 2. The air conditioner indoor unit according to claim 1, wherein the heat exchange assembly comprises a first heat exchange element and a second heat exchange element oppositely arranged, Wherein, the first heat exchanging element and the second heat exchanging element correspond to two air ducts arranged on both sides respectively, and the air duct located in the middle communicates with the adjacent air duct, so that the adjacent air duct The air flow is mixed so that the air outlet temperature and humidity of the air outlet of the indoor unit of the air conditioner are uniform. 3. The air-conditioning indoor unit according to claim 2, wherein the end portion of the first heat exchanging element opposite to the second heat exchanging element defines an accommodation space, and the air-conditioning indoor unit further comprises: The heating element is arranged vertically in the accommodating space and is arranged corresponding to the middle air duct; under the heating condition, part of the air entering the casing through the air inlet passes through the heating element Heated, flows into the air duct in the middle. 4. The air conditioner indoor unit according to claim 1, wherein the humidification component comprises: a water storage tank, located within the central air duct; and, The atomization generating device communicates with the water storage tank, so that the water in the water storage tank forms water mist and is discharged into the middle air duct, so that the water mist flows out of the air duct together with the air flow in the air duct. 5. The air conditioner indoor unit according to any one of claims 1 to 4, characterized in that, the double cross-flow air duct assembly comprises: a volute comprising opposite first and second sidewalls, the first and second sidewalls defining a first air passage; the first volute tongue defines a second air passage with the first side wall of the volute; the second volute tongue defines a third air passage with the second side wall of the volute; Wherein, the second air passage and the third air passage are located on both sides of the first air passage, and the side wall of the volute is configured with a plurality of ventilation holes to communicate with the first air passage and the third air passage. The second air passage, the first air passage and the third air passage. 6. The air conditioner indoor unit according to claim 5, wherein the double cross-flow air duct assembly further comprises: The upper cover plate is arranged on the top of the volute to cover and limit the top of the air outlet; Wherein, at a position corresponding to the first air duct, the upper surface of the upper cover plate is recessed toward the side of the first air duct to form a water storage tank to provide water for the humidifying assembly. 7. The air conditioner indoor unit according to claim 5, wherein the double cross-flow air duct assembly further comprises: The lower cover plate is arranged at the bottom of the volute to cover and limit the bottom of the air outlet; Wherein, the lower cover plate is configured with a water receiving tank to collect and discharge incompletely atomized liquid droplets in the air duct. 8. The air conditioner indoor unit according to claim 5, wherein the volute is a U-shaped structure, and the volute further comprises: an open end facing the heating element with the open area covering the heating element; The closed end is configured with a plurality of air outlet holes, so that the airflow of the first air channel is blown out from the air outlet holes. 9. The air conditioner indoor unit according to claim 8, further comprising: The first cross-flow fan is arranged in the casing and is located in the first air passage to drive the air flow in the first air passage; Wherein, the humidifying component is located on the air inlet side of the first cross-flow fan. 10. The air conditioner indoor unit according to claim 9, characterized in that: The first cross-flow fan is arranged vertically, and the distance from its axis to the closed end is smaller than the distance from the axis to the open end, so as to extend the length of the air duct on the air inlet side of the first cross-flow fan so that adjacent The air flow in the air channel flows into the first air channel to be humidified and then blows out.

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