EP4644787A1

EP4644787A1 - Air conditioner indoor unit and air conditioner having same

Info

Publication number: EP4644787A1
Application number: EP23917014.5A
Authority: EP
Inventors: Tianhong ZHU; Jielin PENG; Zhonghua HE; Xin Chen; Zhenbin Chen; Jie Chen; Shuli Liang; Xianyou MAO; Guizhong WANG
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2023-01-17
Filing date: 2023-07-27
Publication date: 2025-11-05
Also published as: EP4644787A4; WO2024152542A1

Abstract

An air conditioner indoor unit (100) and an air conditioner having same. The air conditioner indoor unit (100) comprises a housing (1) and a fresh air module (2). The housing (1) comprises a rear casing (11) and a rear cover (12). The housing (1) is provided with a first indoor air inlet (1a), a fresh air passing hole (1b), a fresh air outlet (1c) and an indoor air outlet (1d); part of the fresh air passing hole (1b) is located on the rear casing (11) and the other part thereof is located on the rear cover (12); the fresh air module (2) is arranged in the housing (1).

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application is based on and claims priority to Chinese Patent Applications Nos. 202310081868.8 and 202320176568.3 filed on January 17, 2023 , the entire contents of which are incorporated herein by reference.

FIELD

The present application relates to the field of air handling technologies, and more particularly, to an air conditioner indoor unit and an air conditioner including same.

BACKGROUND

In the related art, air conditioners on the market are usually configured with a fresh air mode, which is used to introduce outdoor fresh air into the room, supplementing the amount of indoor fresh air and improving indoor air quality.
However, the position design of a fresh air through hole of an air conditioner indoor unit is unreasonable, which makes the pipeline connection with the air conditioner outdoor unit inconvenient.

SUMMARY

The present application aims to solve at least one of the technical problems in the related art to a certain extent.
To this end, the present application provides an air conditioner indoor unit, which ensures that a rear housing has sufficient structural strength, and facilitates mounting of a fresh air duct at a fresh air through hole.
The present application further provides an air conditioner including the above air conditioner indoor unit.
In a first aspect, an air conditioner indoor unit according to embodiments of the present application includes a housing and a fresh air module. The housing includes a rear housing and a rear cover plate. The rear housing is provided with an operation window. The rear cover plate covers the operation window. The housing has a first indoor air inlet, a fresh air through hole, a fresh air outlet, and an indoor air outlet. The housing has a heat exchange air channel. Each of the first indoor air inlet and the indoor air outlet is in communication with the heat exchange air channel. A part of the fresh air through hole is located in the rear housing and the other part of the fresh air through hole is located in the rear cover plate. The fresh air module is disposed in the housing, and the fresh air module includes a base, a filter assembly, and a fresh air fan. The base has a first inlet and a fresh air outflow channel, the first inlet is arranged in correspondence with the fresh air through hole, and the fresh air outflow channel is in communication with the fresh air outlet. The filter assembly is disposed at the base and is located between the first inlet and the fresh air outflow channel, and the fresh air fan is disposed at the base.
With the air conditioner indoor unit according to the embodiments of the present application, a part of the fresh air through hole is located in the rear housing and the other part of the fresh air through hole is located in the rear cover plate. The rear housing and the rear cover plate jointly define the fresh air through hole to prevent the fresh air through hole from being entirely located at the rear housing, thereby avoiding impacts on the overall structural strength of the rear housing. In this way, it ensures that the rear housing has sufficient structural strength, and the mounting of the fresh air duct at the fresh air through hole is also convenient.
In some embodiments, the rear cover plate has the fresh air outlet.
In some embodiments, the rear cover plate has a wiring port configured to route a connection wiring harness. The air conditioner indoor unit is connected to an air conditioner outdoor unit through the connection wiring harness.
In some embodiments, a height difference between a lowest part of the wiring port and a center of the fresh air through hole ranges from 0 mm to 30 mm.
In some embodiments, a plurality of fresh air outlets and a plurality of fresh air outflow channels are provided. The plurality of fresh air outflow channels are respectively in communication with the plurality of fresh air outlets in one-to-one correspondence.
In some embodiments, at least two of the plurality of fresh air outlets are oriented in different directions.
In some embodiments, the fresh air outlets are formed at both a front side and a rear side of the housing.
In some embodiments, an opening area of the fresh air outlet located at the front side of the housing is smaller than an opening area of the fresh air outlet located at the rear side of the housing.
In some embodiments, the fresh air outlet located at the front side of the housing is located below the indoor air outlet.
In some embodiments, the air conditioner indoor unit further includes a switch module configured to control opening and closing of each of the plurality of fresh air outlets.
In some embodiments, the filter assembly is disposed at the base in a drawable manner.
In some embodiments, an air-facing surface of the filter assembly is formed as an arc-shaped surface.
In some embodiments, the base further has a second inlet. The housing has a second indoor air inlet in communication with the second inlet. The second inlet is located at an air inflow side of the filter assembly.
In some embodiments, the second inlet is located below the first inlet.
In some embodiments, an orthographic projection of the second indoor air inlet covers an orthographic projection of the second inlet in the same vertical projection plane.
In some embodiments, the second indoor air inlet is formed into a grid shape, or the second indoor air inlet includes a plurality of ventilation micro holes arranged sequentially.
In a second aspect, an air conditioner according to embodiments of the present application includes the air conditioner indoor unit according to the embodiments of the present application in the first aspect.
With the air conditioner according to the embodiments of the present application, user experience can be improved by adopting the above air conditioner indoor unit.
Additional aspects and advantages of the present application will be provided at least in part in the following description, or will become apparent at least in part from the following description, or can be learned from practicing of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of an air conditioner indoor unit according to some embodiment of the present application.
FIG. 2 is a schematic view of the air conditioner indoor unit in FIG. 1, viewed from another perspective.
FIG. 3 is a schematic view of the air conditioner indoor unit in FIG. 2 with a rear cover plate removed.
FIG. 4 is a partial cross-sectional view of the air conditioner indoor unit in FIG. 2.
FIG. 5 is a partial enlarged view of the air conditioner indoor unit in FIG. 4.
FIG. 6 is a schematic view of the fresh air module in FIG. 3.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Embodiments of the present application will be described in detail below with reference to examples thereof as illustrated in the accompanying drawings, throughout which same or similar elements, or elements having same or similar functions, are denoted by same or similar reference numerals. The embodiments described below with reference to the drawings are illustrative only, and are intended to explain, rather than limit, the present application.
Various embodiments or examples for implementing different structures of the present application are provided below. To simplify the description of the present application, components and arrangements of specific examples are described herein. These specific examples are merely for the purpose of illustration, rather than limiting the present application. Further, reference numerals and/or reference letters may be repeated in different examples of the present application. Such repetition is for the purpose of simplicity and clarity and does not indicate any relationship between various embodiments and/or arrangements in question. In addition, various examples of specific processes and materials are provided in the present application. However, those of ordinary skill in the art may be aware of applications of other processes and/or the use of other materials.
An air conditioner indoor unit 100 according to an embodiment of the present application is described in detail below with reference to the accompanying drawings.
As illustrated in FIG. 1 to FIG. 6, the air conditioner indoor unit 100 includes a housing 1 and a fresh air module 2. The housing 1 includes a rear housing 11 and a rear cover plate 12. The fresh air module 2 is located in the housing 1. The rear housing 11 is provided with an operation window 11a, and the rear cover plate 12 covers the operation window 11a, in such a manner that the fresh air module 2 can be inspected and maintained through the operation window 11a, facilitating maintenance and replacement of the fresh air module 2 and components in the air conditioner indoor unit 100. The housing 1 has a first indoor air inlet 1a, a fresh air through hole 1b, a fresh air outlet 1c, and an indoor air outlet 1d. The housing 1 has a heat exchange air channel. Each of the first indoor air inlet 1a and the indoor air outlet 1d is in communication with the heat exchange air channel to achieve refrigeration or heating of the air conditioner indoor unit 100. A part of the fresh air through hole 1b is located in the rear housing 11 and the other part of the fresh air through hole 1b is located in the rear cover plate 12. Therefore, the rear housing 11 and the rear cover plate 12 jointly define the fresh air through hole 1b. This design prevents the fresh air through hole 1b from being entirely located in the rear housing 11, thereby avoiding impacts on the overall structural strength of the rear housing 11. In this way, it ensures that the rear housing 11 maintains sufficient structural strength.
The fresh air module 2 is disposed in the housing 1. The fresh air module 2 includes a base 21, a filter assembly 22, and a fresh air fan 23. The base 21 has a first inlet 21a and a fresh air outflow channel 21b, and the first inlet 21a is arranged in correspondence with the fresh air through hole 1b. It should be understood that, an indoor end of the fresh air duct is in communication with the first inlet through the fresh air through hole, and an outdoor end of the fresh air duct is in communication with an outdoor environment, to realize communication between the fresh air module 2 and the outdoor. In this way, outdoor air flows to the first inlet 21a via the fresh air duct passing through the fresh air through hole 1b to flow to the fresh air module 2.
The fresh air outflow channel 21b is in communication with the fresh air outlet 1c, and the fresh air outflow channel 21b guides air from the fresh air module 2 to flow out through the fresh air outlet 1c. The filter assembly 22 (such as a HEPA filter) is disposed at the base 21 and is located between the first inlet 21a and the fresh air outflow channel 21b to filter and/or disinfect air flowing from the first inlet 21a to the fresh air outflow channel 21b, cleaning the air that flows into the room from the fresh air outlet 1c. Also, outdoor fresh air is conveyed into the room through the fresh air outlet 1c, improving indoor air quality. The fresh air fan 23 is disposed at the base 21 to provide power for the fresh air module 2 to introduce the outdoor air from the first inlet 21a and discharge it from the fresh air outlet 1c after being filtered through the filter assembly 22. Accordingly, the introduction of fresh air is achieved.
In the related art, the fresh air through hole 1b is located at the rear housing 11 or the rear cover plate 12. It is necessary to route the fresh air duct through the fresh air through hole 1b to establish communication between the first inlet 21a and the fresh air duct, realizing communication between the fresh air module 2 and the outdoor. In the present application, the base with the first inlet 21a may be mounted in the housing, the fresh air duct is placed at a part of the fresh air through hole of the rear housing 11, and then the rear cover plate 12 is covered on the operation window. Therefore, mounting of the fresh air duct can be realized, which eliminates a step of arranging the fresh air duct to pass through a fresh air through hole, facilitating the mounting of the fresh air duct.
For example, in examples illustrated in FIG. 2 and FIG. 3, the rear housing 11 of the housing 1 is provided with the operation window 11a. The fresh air module 2 is mounted and fixed in the operation window 11a through a hook structure and fasteners (such as screws). The operation window 11a is provided with the rear cover plate 12 that covers the operation window 11a. The first inlet 21a is formed at the rear side of the fresh air module 2. A snap structure is formed between the first inlet 21a and the fresh air duct. Half of the fresh air through hole 1b is located in the rear housing 11 and the other half of the fresh air through hole 1b is located in the rear cover plate 12. The fresh air duct may be placed at the rear housing 11 provided with the fresh air through hole 1b, in such a manner that the fresh air duct is engaged and pre-snap-fitted with the base. Through rotating the fresh air duct, a snap connection between the first inlet 21a and the fresh air duct can be completed. The rear cover plate 12 is positioned to cover the operation window 11a to realize an up-down snap fixation of the fresh air duct.
It should be understood that, when the fresh air through hole of the air conditioner indoor unit is not connected to the fresh air duct, to prevent foreign matter from entering the fresh air module from the fresh air through hole during transportation or sales, the fresh air through hole is blocked by two removable members 13 that can be removed. When the fresh air duct needs to be connected via the fresh air through hole, the removable members 13 at the rear housing and the rear cover plate are removed to open the fresh air through hole. The rear cover plate 12 is opened and the fresh air duct is connected to the first inlet.
With the air conditioner indoor unit 100 according to the embodiments of the present application, a part of the fresh air through hole 1b is located in the rear housing 11 and the other part of the fresh air through hole 1b is located in the rear cover plate 12. The rear housing 11 and the rear cover plate 12 jointly define the fresh air through hole 1b to prevent the fresh air through hole 1b from being entirely located at the rear housing 11, thereby avoiding impacts on the overall structural strength of the rear housing 11. In this way, it ensures that the rear housing 11 maintains sufficient structural strength and the mounting of the fresh air duct at the fresh air through hole 1b is also convenient.
In some embodiments, as illustrated in FIG. 6, the first inlet 21a is provided with a switch door 25 configured to open and close the first inlet 21a. When the air conditioner indoor unit 100 is operated in a fresh air mode, the switch door 25 is opened to allow the first inlet 21a to be in communication with the fresh air through hole 1b.
The switch door 25 closes the first inlet 21a to prevent cold air from entering the housing 1 when the fresh air is not introduced. Accordingly, the first inlet 21a is prevented from generating condensed water, ensuring normal operation of the fresh air module 2.
In some embodiments, as illustrated in FIG. 2, the rear cover plate 12 has the fresh air outlet 1c, which facilitates communication between the fresh air outflow channel 21b and the fresh air outlet 1c at a rear side. In addition, the fresh air outlet 1c is formed at the rear cover plate 12, instead of forming the fresh air outlet 1c at the rear housing 11, thereby avoiding impacts on the structural strength of the rear housing 11.
The fresh air outlet 1c discharges air towards the rear, in such a manner that noise generated at the fresh air outlet 1c is directed to the rear, reducing influence of the noise on a user and improving indoor comfort. Furthermore, when the fresh air mode needs to be activated upon user's requirement in winter, the relatively cold fresh air blown from the rear is prevented from directly blowing onto the user. Also, the relatively cold fresh air blown from the rear side can enter the first indoor air inlet 1a and be heated, and then be blown out from the indoor air outlet 1d, which allows the user to obtain mild fresh air, improving the user experience. Of course, the fresh air outlet 1c is disposed at the rear cover plate 12, which facilitates providing the rear housing 11 as a standard component. Accordingly, the air conditioner indoor unit 100 with the fresh air module 2 mounted and the air conditioner indoor unit 100 without the fresh air module 2 may be provided with the same rear housing 11. In this way, a need to separately design the rear housing 11 of the air conditioner indoor unit 100 without the fresh air module 2 mounted is avoided, saving production costs and improving production efficiency.
In some embodiments, as illustrated in FIG. 2, the rear cover plate 12 has a wiring port 12a through which a connection wiring harness is routed. The air conditioner indoor unit 100 is connected to the air conditioner outdoor unit through the connection wiring harness, in such a manner that the connection wiring harness of the air conditioner indoor unit 100 is conveniently led out through the wiring port 12a to connect to the air conditioner outdoor unit.
For example, in examples illustrated in FIG. 2, two wiring ports 12a are provided, and the two wiring ports 12a are located at a left side and a right side of the rear cover plate 12, respectively. Therefore, the connection wiring harness of the air conditioner indoor unit 100 can be optionally connected to the air conditioner outdoor unit through a left wiring port 12a or a right wiring port 12a. In this way, situations where one of the two wiring ports 12a is poorly positioned or blocked by a wall or other components in the user's home are avoided, which enables the connection wiring harness to be led out through another wiring port 12a. The applicability of the air conditioner indoor unit 100 is enhanced, and the mounting of the air conditioner is convenient.
It should be understood that, the wall body has a through-wall hole, the connection wiring harness is connected to the air conditioner outdoor unit through the through-wall hole, and the fresh air duct is in communication with the outdoor environment through the through-wall hole.
In some embodiments, a height difference between a lowest part of the wiring port 12a and a center of the fresh air through hole 1b ranges from 0 mm to 30 mm, to ensure that the fresh air through hole 1b and the wiring port 12a are kept at the same level as much as possible at the air conditioner indoor unit 100, facilitating passage of the fresh air duct and the connection wiring harness through the same through-wall hole. In this way, situations such as bending of the fresh air duct are avoided, ensuring smooth circulation of the fresh air in the fresh air duct.
For example, in examples illustrated in FIG. 2, two wiring ports 12a are provided, and the two wiring ports 12a are located at the left side and the right side of the fresh air through hole 1b. The fresh air through hole 1b and the wiring ports 12a are kept at a similar level to avoid affecting selectivity of the connection wiring harness to exit from the left wiring port 12a or the right wiring port 12a. Also, the fresh air through hole 1b is prevented from being placed at too high or too low positions, thereby avoiding impacts on a design arrangement of components (such as copper pipes) in the air conditioner indoor unit 100. In this way, the design of the air conditioner indoor unit 100 is more reasonable.
It should be noted that, the wiring port 12a is positioned at the same level as the through-wall hole to facilitate connection of the connection wiring harness and the fresh air outlet duct. The fresh air through hole 1b and the outlet opening 12a are kept at the same level to facilitate the mounting of the fresh air outlet duct, avoiding bending of the fresh air outlet duct from affecting air volume of the fresh air outlet duct.
In some embodiments, as illustrated in FIG. 1 to FIG. 3, a plurality of fresh air outlets 1c and a plurality of fresh air outflow channels 21b are provided, and the plurality of fresh air outflow channels 21b are respectively in communication with the plurality of fresh air outlets 1c in one-to-one correspondence, to convey the outdoor fresh air into the room through the plurality of fresh air outlets 1c. Also, the amount of fresh air entering the room is increased to shorten fresh air time of the air conditioner indoor unit 100, improving an operating efficiency of the air conditioner indoor unit 100 in the fresh air mode.
For example, the rear housing 11 and/or the rear cover plate 12 have a plurality of fresh air outlets 1c, and the air conditioner indoor unit 100 discharges air rearward in different directions.
For example, the housing 1 has a plurality of fresh air outlets 1c at a front side of the housing 1, and the air conditioner indoor unit 100 discharges air forward in different directions.
Of course, the housing 1 has a plurality of fresh air outlets 1c at various positions of the housing 1, and the air conditioner indoor unit 100 discharges air in different directions.
In some embodiments, as illustrated in FIG. 1 to FIG. 3, at least two of the plurality of fresh air outlets 1c are oriented in different directions, in such a manner that blowing directions of fresh air are diversified. Therefore, the air conditioner indoor unit 100 has a plurality of fresh air outlet forms, which better meets demands of the user to select different fresh air outlet forms.
For example, in the embodiments of FIG. 6, the fresh air module 2 includes two fresh air outflow channels 21b. The two fresh air outflow channels 21b are located at an upper side of the fresh air module 2, and the two fresh air outflow channels 21b are located at a front side and a rear side of the fresh air module 2, respectively. The two fresh air outflow channels 21b are in communication with the respective fresh air outlet 1c at the front side of the housing 1 and the respective fresh air outlet 1c at the rear cover plate 12, respectively, in such a manner that the air conditioner indoor unit 100 has the fresh air outlets 1c that discharge air in two directions, namely, in a forward direction and a rearward direction.
It should be noted that, openings in different directions mean that air may be blown in different directions. For example, the fresh air outlets are disposed at the same side wall of the housing 1 and blow air in different directions (such as a left-rear direction, a lower-left direction, or an upper-left direction), or they may be disposed at side walls at different positions such as the front side and the rear side of the housing 1.
In some embodiments, as illustrated in FIG. 1, FIG. 2, and FIG. 6, the housing has the fresh air outlets 1c at both the front side and the rear side of the housing 1, in such a manner that the air conditioner indoor unit 100 can discharge air in two directions, i.e., in a forward direction and a rearward direction, respectively, to increase the fresh air output volume of the air conditioner indoor unit 100. In addition, the fresh air outlets 1c for blowing air in two different air outlet directions of the air conditioner indoor unit 100 can provide outdoor fresh air to the room more quickly, improving an efficiency of the fresh air mode of the air conditioner indoor unit 100.
In some embodiments, an opening area of the fresh air outlet 1c located at the front side is smaller than an opening area of the fresh air outlet 1c located at the rear side. In this way, the air output volume of the fresh air outlet 1c at the rear side is greater than the air output volume of the fresh air outlet 1c at the front side, avoiding discomfort to the human body caused by the fresh air blowing directly onto the human body.
Of course, in other embodiments, the opening area of the fresh air outlet 1c located at the front side may be greater than the opening area of the fresh air outlet 1c located at the rear side. In this way, the air output volume of the fresh air outlet 1c at the front side is greater than the air output volume of the fresh air outlet 1c at the rear side. Therefore, the fresh air outlet 1c at the front side blows out more fresh air, which can expedite reduction of indoor turbid air concentration. Also, the fresh air outlet 1c at the front side can enable the user to experience the fresh air more quickly, improving indoor user experience.
In some embodiments, as illustrated in FIG. 1, the fresh air outlet 1c located at the front side is located below the indoor air outlet 1d, in such a manner that structural design of the fresh air outlet 1c and the indoor air outlet 1d at the front side of the housing 1 is more compact. Accordingly, a space utilization rate of the front side of the housing 1 is increased, and the design of the fresh air outlet 1c and the indoor air outlet 1d of the air conditioner indoor unit 100 is made more aesthetically pleasing.
In some embodiments, the air conditioner indoor unit 100 further includes a switch module configured to control opening and closing of each of the plurality of fresh air outlets 1c, in such a manner that the air conditioner indoor unit 100 can select different fresh air outlet forms according to user's needs. For example, the air conditioner indoor unit 100 only discharges air from the fresh air outlet 1c at the front side, only discharges air from the fresh air outlet 1c at the rear side, or discharges air from both the fresh air outlet 1c at the front side and the fresh air outlet 1c at the rear side. Of course, the air conditioner indoor unit 100 can be selected in different fresh air outlet forms, and the fresh air outlet directions and air output volume of the air conditioner indoor unit 100 are also different, which provides the user multiple choices to adapt to different user needs, improving the applicability of the air conditioner indoor unit 100.
In some embodiments, as illustrated in FIG. 6, the base 21 further has a second inlet 21c. The housing 1 has a second indoor air inlet 1e in communication with the second inlet 21c, and the second inlet 21c is located at an air inflow side of the filter assembly 22, in such a manner that the air from the room flowing into the second inlet 21c passes through the filter component 22 to filter and purify the indoor air, realizing the internal circulation of the indoor air. Also, the indoor air is purified and filtered, which ensures cleanliness of the indoor air, improving the user experience.
In some examples of the present application, the second inlet 21c is provided with a switch structure 24 configured to open and close the second inlet 21c. When an indoor air internal circulation mode of the air conditioner indoor unit 100 is activated, the switch structure 24 is turned on to perform circulation purification of indoor air, improving indoor air quality.
Of course, the second inlet 21c is closed by the switch structure 24 to prevent the cold air from entering the housing 1, which avoids the second inlet 21c from generating condensed water, ensuring the normal operation of the fresh air module 2.
In addition, the first inlet 21a is provided with the switch door 25, and the second inlet 21c is provided with the switch structure 24. The opening or closing of the switch door 25 and the switch structure 24 can also be controlled, in such a manner that the air conditioner indoor unit 100 can be controlled to activate or deactivate the fresh air mode and an indoor air internal circulation mode.
For example, when the fresh air mode of the air conditioner indoor unit 100 is activated, the switch door 25 is controlled to open and the switch structure 24 is controlled to close, and the first inlet 21a is in communication with the fresh air duct. The fresh air fan 23 draws in outdoor fresh air, which is then discharged into the room through the fresh air outlet 1c. The outdoor fresh air is purified and disinfected by the filter assembly 22, which makes the fresh air entering the room clean and safe, improving indoor comfort and air quality. When the indoor air internal circulation mode of the air conditioner indoor unit 100 is activated, the switch door 25 is controlled to close and the switch structure 24 is controlled to open, and the second inlet 21c is in communication with the second indoor air inlet 1e. The fresh air fan 23 draws in indoor air, which is then discharged into the room through the fresh air outlet 1c. Also, the indoor air is purified and disinfected by the filter assembly 22 to purify indoor turbid air, improving the indoor air quality.
In some embodiments, as illustrated in FIG. 4, the filter assembly 22 is disposed at the base 21 in a drawable manner to facilitate replacement of the filter assembly 22.
In some embodiments, an air-facing surface of the filter assembly 22 is formed as an arc-shaped surface to increase an air passage area of the filter assembly 22, which improves filtration effect and ventilation volume of the filter assembly 22, improving purification capacity of the fresh air module 2. In addition, the filter assembly 22 is formed into an arc shape, in such a manner that the filter assembly 22 is less likely to come out of the base 21, preventing the filter assembly 22 from moving due to movement of the air conditioner indoor unit 100. In this way, impacts on the purification capability of the fresh air module 2 are prevented.
For example, the base 21 is formed with an insertion guide rail for movement of the filter assembly 22. The insertion guide rail is formed into an arc shape to facilitate fixation with the filter assembly 22. Also, a restricted positional limiting part is formed between the insertion guide rail and the filter assembly 22 to guarantee fixation and stability of the filter assembly 22.
In some embodiments, as illustrated in FIG. 6, the second inlet 21c is located below the first inlet 21a, which allows for a more compact positional design for the first inlet 21a and the second inlet 21c. In this way, the maximize utilization of a space at an air inflow side of the filter assembly 22 is realized, facilitating miniaturization of the fresh air module 2.
In some embodiments, as illustrated in FIG. 4, an orthographic projection of the second indoor air inlet 1e covers an orthographic projection of the second inlet 21c in the same vertical projection plane, which is beneficial to increasing air intake volume of the second inlet 21c, to avoid a situation where the air intake volume of the second inlet 21c is insufficient since the second indoor air inlet 1e is too small. In this way, time for indoor air purification and filtration is saved, which can improve speed and efficiency of indoor air circulation.
In the same vertical projection plane, an outline shape of the orthographic projection of the second indoor air inlet 1e is greater than an outline shape of the orthographic projection of the second indoor air inlet 21c in all directions. A size difference between the outline shape of the orthographic projection of the second indoor air inlet 1e and the outline shape of the orthographic projection of the second inlet 21c in all directions ranges from 15 mm to 20 mm, to prevent the second indoor air inlet 1e from affecting air intake into the second inlet 21c.
For example, in examples illustrated in FIG. 4, an orthographic projection area of the second indoor air inlet 1e is greater than an orthographic projection area of the second inlet 21c in a front-rear direction.
In some embodiments, as illustrated in FIG. 2, the second indoor air inlet 1e is formed into a grid shape, or the second indoor air inlet 1e includes a plurality of ventilation micro holes arranged sequentially, to ensure effective air intake volume of the second indoor air inlet 1e. Also, external debris can be prevented from entering the second inlet 21c, which ensures normal operation of the internal circulation of the indoor air of the second inlet 21c.
The second indoor air inlet 1e is formed into the grid shape or the second indoor air inlet 1e includes the plurality of ventilation micro holes arranged sequentially, in such a manner that the design of the second indoor air inlet 1e minimizes its impact on the overall structure of the housing 1. In this way, it ensures that the rear side of the housing 1 has sufficient structural strength.
In a second aspect, an air conditioner according to embodiments of the present application includes the air conditioner indoor unit 100 according to the embodiments of the present application in the first aspect 100.
With the air conditioner according to the embodiments of the present application, user experience can be improved by adopting the above air conditioner indoor unit 100.
In the description of the present application, it should be understood that the orientation or the position indicated by terms such as "center", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "inner", and "outer" should be construed to refer to the orientation or the position as shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features associated with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, terms such as "install", "connect", "connect to", and the like should be understood in a broad sense. For example, it may be a fixed connection or a detachable connection or connection as one piece; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate; internal communication of two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to specific circumstances.
Reference throughout this specification to "an embodiment", "some embodiments", "schematic embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, exemplary descriptions of aforesaid terms are not necessarily referring to the same embodiment or example. Further, the particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
Although embodiments of the present application have been illustrated and described, it is conceivable for those of ordinary skill in the art that various changes, modifications, replacements, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application shall be defined by the claims as appended and their equivalents.

Claims

An air conditioner indoor unit, comprising:
a housing, comprising a rear housing and a rear cover plate, the rear housing being provided with an operation window, the rear cover plate covering the operation window, wherein:
the housing has a first indoor air inlet, a fresh air through hole, a fresh air outlet, and an indoor air outlet,

the housing has a heat exchange air channel, and the first indoor air inlet and the indoor air outlet are both in communication with the heat exchange air channel, and

a part of the fresh air through hole is located in the rear housing and the other part of the fresh air through hole is located in the rear cover plate; and

a fresh air module disposed in the housing, wherein:
the fresh air module comprises a base, a filter assembly, and a fresh air fan, the base having a first inlet and a fresh air outflow channel,

the first inlet is arranged in correspondence with the fresh air through hole,

the fresh air outflow channel is in communication with the fresh air outlet,

the filter assembly is disposed at the base and is located between the first inlet and the fresh air outflow channel, and

the fresh air fan is disposed at the base.
The air conditioner indoor unit according to claim 1, wherein the rear cover plate has the fresh air outlet.
The air conditioner indoor unit according to claim 1 or 2, wherein:
the rear cover plate has a wiring port configured to route a connection wiring harness;
and

the air conditioner indoor unit is connected to an air conditioner outdoor unit through the connection wiring harness.
The air conditioner indoor unit according to claim 3, wherein a height difference between a lowest part of the wiring port and a center of the fresh air through hole ranges from 0 mm to 30 mm.
The air conditioner indoor unit according to any one of claims 1 to 4, wherein a plurality of fresh air outlets and a plurality of fresh air outflow channels are provided, and the plurality of fresh air outflow channels are respectively in communication with the plurality of fresh air outlets in one-to-one correspondence.
The air conditioner indoor unit according to claim 5, wherein at least two of the plurality of fresh air outlets are oriented in different directions.
The air conditioner indoor unit according to claim 6, wherein the fresh air outlets are formed at both a front side and a rear side of the housing.
The air conditioner indoor unit according to claim 7, wherein the fresh air outlet located at the front side of the housing has an opening area that is smaller than an opening area of the fresh air outlet located at the rear side of the housing.
The air conditioner indoor unit according to claim 7 or 8, wherein the fresh air outlet located at the front side of the housing is located below the indoor air outlet.
The air conditioner indoor unit according to any one of claims 5 to 9, further comprising a switch module configured to control opening and closing of each of the plurality of fresh air outlets.
The air conditioner indoor unit according to any one of claims 1 to 10, wherein the filter assembly is disposed at the base in a drawable manner.
The air conditioner indoor unit according to any one of claims 1 to 11, wherein the filter assembly has an air-facing surface formed as an arc-shaped surface.
The air conditioner indoor unit according to any one of claims 1 to 12, wherein:
the base further has a second inlet;

the housing has a second indoor air inlet in communication with the second inlet; and

the second inlet is located at an air inflow side of the filter assembly.
The air conditioner indoor unit according to claim 13, wherein the second inlet is located below the first inlet.
The air conditioner indoor unit according to claim 13 or 14, wherein an orthographic projection of the second indoor air inlet covers an orthographic projection of the second inlet in the same vertical projection plane.
The air conditioner indoor unit according to any one of claims 13 to 15, wherein the second indoor air inlet is formed into a grid shape, or the second indoor air inlet comprises a plurality of ventilation micro holes arranged sequentially.
An air conditioner, comprising the air conditioner indoor unit according to any one of claims 1 to 16.