CN214406254U

CN214406254U - Machine and air conditioner in air conditioning

Info

Publication number: CN214406254U
Application number: CN202022971019.4U
Authority: CN
Inventors: 李宝华; 张卫东; 孙泽成
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: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-10-15
Anticipated expiration: 2030-12-10

Abstract

The application provides an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises a shell, a wind wheel, a heat exchanger, an air supply mechanism and a sterilization module; the shell is provided with a fresh air inlet, an air return inlet, an air inlet, a first air supply outlet, a second air supply outlet, a first air channel and a second air channel which are mutually independent; the first air duct is communicated with the air inlet and the first air supply outlet, and the fresh air inlet, the air return inlet and the second air supply outlet are communicated with the second air duct; the wind wheel is arranged in the first air channel; the air supply mechanism is arranged in the second air duct so as to supply airflow from the fresh air inlet and/or the return air inlet out of the second air supply outlet; the sterilization module is arranged in the second air channel, and the airflow from the air return opening flows through the sterilization module. According to the air-conditioning indoor unit of the embodiment of the application, the fresh air function of the air supply mechanism and the indoor air sterilization and disinfection function do not influence the air quantity of the air-conditioning indoor unit for refrigeration and heating; outdoor fresh air and indoor return air are sent out through the same air supply mechanism, so that the indoor unit of the air conditioner is compact in structure.

Description

Machine and air conditioner in air conditioning

Technical Field

The application relates to the technical field of air conditioning, in particular to an air conditioner indoor unit and an air conditioner.

Background

In the related art, a fresh air module is integrated on an indoor unit of an air conditioner so as to introduce outdoor fresh air into a room and improve the freshness of indoor air. Although the introduced fresh air can increase the freshness of indoor air, the introduced fresh air cannot purify pollutants in the indoor air.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application is directed to an air conditioner indoor unit and an air conditioner having a fresh air function, a sterilization function and a compact structure.

In order to achieve the above object, an embodiment of the present application provides an indoor unit of an air conditioner, including:

the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with a fresh air inlet, an air return inlet, an air inlet, a first air supply outlet, a second air supply outlet, a first air channel and a second air channel which are mutually independent; the first air duct is communicated with the air inlet and the first air supply outlet, and the fresh air inlet, the air return inlet and the second air supply outlet are communicated with the second air duct;

the wind wheel is arranged in the first air channel;

the heat exchanger is arranged on the air inlet side of the wind wheel;

the air supply mechanism is arranged in the second air duct and is used for sending the airflow from the fresh air inlet and/or the air return inlet out of the second air supply outlet;

and the sterilization module is arranged in the second air channel, and the airflow from the air return inlet flows through the sterilization module.

In some embodiments, the first air supply outlet and the second air supply outlet are both disposed on the front side of the housing, and the position of the second air supply outlet is higher than that of the first air supply outlet.

In some embodiments, the air inlet is located at a top side of the housing and the air return is located at a front side of the housing.

In some embodiments, the number of the first air ducts is two, the two first air ducts are located on two opposite sides of the second air duct along the length direction of the indoor unit of the air conditioner, and each first air duct is provided with the wind wheel and the heat exchanger correspondingly.

In some embodiments, the indoor unit of the air conditioner includes a screen assembly disposed in the second air duct, and the air flow from the fresh air inlet passes through the screen assembly.

In some embodiments, the casing includes a chassis and a face frame assembly that are fastened to each other, the first supply-air outlet, the second supply-air outlet and the return air inlet are all disposed on the face frame assembly, the chassis and the face frame assembly jointly enclose a first installation space and a second installation space, the first installation space and the second installation space are arranged along the length direction of the indoor air conditioner, the wind wheel and the heat exchanger are disposed in the first installation space, and the air supply mechanism and the sterilization module are located in the second installation space.

In some embodiments, the housing includes a first switch door that is movably coupled to the face frame assembly to selectively open or close the air return opening.

In some embodiments, the first opening and closing door overlaps the outer surface of the face frame assembly and is slidable relative to the face frame assembly.

In some embodiments, the front outer surface of the face frame assembly is provided with a mounting area, the air return opening and the second air supply opening are both arranged in the mounting area, the air return opening is a set of a plurality of first small holes, the second air supply opening is a set of a plurality of second small holes, and the first opening and closing door is provided with a through hole array; when the first switch door is positioned at a position covering the mounting area, the first small holes and the second small holes are communicated with the through hole array; when the first switch door slides to the position avoiding the second air supply outlet, the through hole array and the first small holes are arranged in a staggered mode, and the air return inlet is in a closed state.

In some embodiments, the housing includes a box body disposed in the second installation space, the sterilization module and the air supply mechanism are both disposed in the box body, and a space in the box body is formed as the second air duct.

In some embodiments, the outer contour of the casing is adapted to the face frame assembly such that the casing is embedded within the face frame assembly, the casing is provided with a first opening and a second opening, the inner surface of the face frame assembly is in contact with the outer surface of the casing, the first opening is aligned with the return air opening, and the second opening is aligned with the second supply air opening.

In some embodiments, the fresh air inlet is disposed on a rear sidewall of the box; the casing include with box swing joint's second switch door, the second switch door set up in the new trend entrance to selectively open or close the new trend entrance.

The embodiment of the application further provides an air conditioner, which comprises an air conditioner outdoor unit and any one of the air conditioner indoor units, wherein the air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe.

According to the air-conditioning indoor unit of the embodiment of the application, the first air channel and the second air channel are mutually independent, so that the fresh air function of the air supply mechanism and the indoor air sterilization and disinfection function do not influence the refrigerating and heating air quantity of the air-conditioning indoor unit, the wind wheel and the air supply mechanism can not influence each other, namely the wind wheel and the air supply mechanism can work independently, and the air supply mechanism can work or not work selectively when the wind wheel is in a working state; outdoor fresh air and indoor return air are conveyed by air flow through the same air supply mechanism, so that the indoor unit of the air conditioner is compact in structure.

Drawings

Fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure shown in FIG. 1 from another perspective, wherein the first opening/closing door is in a state of opening the return air inlet;

FIG. 3 is a schematic view of another state of the structure shown in FIG. 2, wherein the first opening/closing door is in a state of closing the air return opening;

FIG. 4 is a schematic view of the structure of FIG. 1 without the first switch door;

FIG. 5 is an exploded view of the structure shown in FIG. 1;

FIG. 6 is an exploded view of the housing, sterilization module, filter assembly, and blower mechanism of the structure shown in FIG. 5;

FIG. 7 is a schematic structural diagram of a case according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a first switching door according to an embodiment of the present application.

Description of the reference numerals

A housing 1; a fresh air inlet 1 a; an air return opening 1 b; an air inlet 1 c; a first air supply outlet 1 d; a second supply port 1 f; a chassis 11; a volute 111; a face frame assembly 12; a mounting area 12 a; a guide rib 121; a case 13; the first opening 13 a; the second opening 13 b; a wind wheel 21; a heat exchanger 22; an air deflector 23; an air supply mechanism 31; a sterilization module 32; a dust removal net 321; a formaldehyde filter screen 322; a plasma screen 323; a first frame 324; a screen assembly 33; a strainer 331; a second frame 332; a first switching door 34; an array of vias 34 a; second opening/closing door 35

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiments of the present application, the "up", "down", "left", "right", "front", "back" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, it is to be understood that these orientation terms are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present application.

An embodiment of the present application provides an indoor unit of an air conditioner, please refer to fig. 1 and 5, including a casing 1, a wind wheel 21, a heat exchanger 22, a sterilization module 32, and an air supply mechanism 31.

Referring to fig. 4, the casing 1 has a fresh air inlet 1a (see fig. 8), a return air inlet 1b, an air inlet 1c, a first air supply outlet 1d, a second air supply outlet 1f, and a first air duct and a second air duct which are isolated from each other; the first air channel is communicated with the air inlet 1c and the first air supply outlet 1d, and the fresh air inlet 1a, the air return inlet 1b and the second air supply outlet 1f are communicated with the second air channel.

The wind wheel 21 and the heat exchanger 22 are both arranged in the first air duct, and the heat exchanger 22 is arranged on the air inlet side of the wind wheel 21. Specifically, under the action of the wind wheel 21, the indoor air enters the first air duct from the air inlet 1c, is subjected to heat exchange through the heat exchanger 22, and then is supplied through the first air supply outlet 1d, so that the circulation is continuous, and the heating or the refrigeration of the indoor air is realized. That is, the air conditioning indoor unit achieves cooling and heating effects through the wind wheel 21 and the heat exchanger 22.

The air blowing mechanism 31 is provided in the second air duct to blow out the air flow from the fresh air inlet 1a and/or the return air inlet 1b from the second air blowing port 1 f. The sterilization module 32 is disposed in the second air duct, the airflow from the air return opening 1b flows through the sterilization module 32, the indoor air is pumped into the second air duct through the air return opening 1b under the action of the air supply mechanism 31, and is sterilized and disinfected by the sterilization module 32, and then is sent out from the second air supply opening 1f, so that the indoor air is circularly sterilized and disinfected.

The fact that the air flow from the fresh air inlet 1a and/or the return air inlet 1b is sent out from the second air supply outlet 1f means that when the second air duct only draws in fresh air from the fresh air inlet 1a, the air supply mechanism 31 sends out the air flow from the fresh air inlet 1a from the second air supply outlet 1 f; when the second air duct is drawn into the indoor return air only from the return air inlet 1b, the air supply mechanism 31 supplies the air flow from the return air inlet 1b out from the second air supply outlet 1 f; when the second wind channel was simultaneously from new trend entry 1a suction new trend and from return air inlet 1b suction indoor return air, outdoor new trend and indoor return air mix in the second wind channel, can change the temperature of new trend after indoor return air and the mixing of outdoor new trend for the supply air temperature from second supply-air outlet 1f is close the room temperature more, avoids forming great difference in temperature, can improve user experience and feel.

The indoor unit of the air conditioner comprises a fresh air mode, a circulating sterilization mode and a mixed sterilization mode. Specifically, when the air conditioning indoor unit is in a fresh air mode, the air return opening 1b is closed, the fresh air inlet 1a is opened, indoor air cannot enter the second air channel through the air return opening 1b, and the second air channel only sucks outdoor fresh air from the fresh air inlet 1 a. When the air conditioning indoor unit is in a circulating sterilization mode, the air return opening 1b is opened, the fresh air inlet 1a is closed, and the second air duct only sucks indoor return air from the air return opening 1 b. When the air conditioner indoor unit is in a mixed sterilization mode, the air return inlet 1b and the fresh air inlet 1a are both opened, and the second air duct simultaneously sucks indoor return air and outdoor fresh air, so that fresh air can be supplemented indoors, and indoor air can be continuously sterilized and disinfected.

In the air-conditioning indoor unit of the embodiment of the application, because the first air duct and the second air duct are independent from each other, the fresh air function of the air supply mechanism 31 and the indoor air sterilization and disinfection function do not affect the air quantity of refrigeration and heating of the air-conditioning indoor unit, the wind wheel 21 and the air supply mechanism 31 can not affect each other, namely the wind wheel 21 and the air supply mechanism 31 can work independently from each other, and the air supply mechanism 31 can work or not work selectively when the wind wheel 21 is in a working state; outdoor fresh air and indoor return air are conveyed by air flow through the same air supply mechanism 31, so that the indoor unit of the air conditioner is compact in structure.

The specific type of the sterilization module 32 is not limited, and the sterilization module 32 having sterilization and disinfection functions for different pollutants can be selected according to actual use scenarios. Illustratively, the sterilization module 32 includes a dust removal net 321, a formaldehyde filter net 322 and a plasma net 323 which are arranged in sequence along the airflow direction, and the plasma net 322 faces the air outlet side of the sterilization module 32. The specific material of the dust removing net 321 is not limited as long as it can perform a preliminary dust removing function. The formaldehyde filter screen 322 not only has the function of efficiently absorbing formaldehyde, but also can filter out other volatile organic compounds, allergens, bacteria and the like. The plasma net 323 is through the form that the ion gived off to the disinfection of disinfecting of the air current in the second wind channel of the module 32 air-out side, and in outdoor new trend and indoor return air mixing process, can carry plasma behind the indoor return air flow through plasma net 323, and plasma can play certain disinfection effect of disinfecting to the new trend. The position of the sterilization module 32 is not limited, and for example, the sterilization module 32 is disposed at the return air inlet 1b to sterilize and disinfect the indoor return air entering the return air inlet 1b, so that the air flow entering the air flow channel is clean air flow.

In one embodiment, the sterilization module 32 further includes a first frame 324, and the dust removing net 321, the formaldehyde filter net 322, the plasma net 323, and the like are all installed in the first frame 324, so as to facilitate installation and positioning of the sterilization module 32.

The specific installation position of the second blowing port 1f is not limited, and may be located at any position of the casing 1. Illustratively, the first air blowing port 1d is located on the front side of the casing 1 and extends substantially in the left-right direction of the casing 1. It can be understood that, in some embodiments, referring to fig. 1 to 3 and fig. 5, the indoor unit of an air conditioner further includes a wind deflector 23 disposed at the first air blowing opening 1d, and the air blowing angle of the first air blowing opening 1d is changed by the wind deflector 23.

The specific arrangement position of the second air blowing port 1f is not limited, and the second air blowing port 1f is exemplarily arranged on the front side of the casing 1.

The relative positions of the second air blowing port 1f and the first air blowing port 1d are not limited, and for example, the second air blowing port 1f and the first air blowing port 1d are arranged substantially along the same straight line.

For another example, the second air blowing port 1f is located higher than the first air blowing port 1 d. In this embodiment, when the heat exchanger 22 is used for cooling, the temperature of the indoor air is lower than that of the outdoor fresh air, if the second air duct draws in the fresh air from the fresh air inlet 1a, the temperature of the air flow sent out from the second air supply outlet 1f is higher than that of the air flow sent out from the first air supply outlet 1d, the air flow sent out from the second air supply outlet 1f rises, and the air flow sent out from the second air supply outlet 1f gradually falls after being cooled, so that the air flow sent out from the second air supply outlet 1f cannot be directly blown to a user. When the heat exchanger 22 heats, if the second air duct draws in fresh air from the fresh air inlet 1a, the temperature of indoor air is higher than that of outdoor fresh air, the temperature of air flow sent out from the second air supply outlet 1f is lower than that of air flow sent out from the first air supply outlet 1d, and the air flow sent out from the first air supply outlet 1d can be mixed with the air flow sent out from the second air supply outlet 1f to exchange heat in the rising process, so that the uniformity of temperature is improved, and the user experience is improved.

The second air blowing port 1f is located higher than the first air blowing port 1d, and at least a part of the second air blowing port 1f is located higher than the first air blowing port 1 d.

The position of the fresh air inlet 1a is not limited as long as it is convenient to install a fresh air pipe, for example, the fresh air inlet 1a is located at the rear side, the top side, the left side, the right side, and the like of the housing 1. The position of the air inlet 1c is not limited, and may be provided on the top side, the front side, or the like of the housing 1. The position of the air return opening 1b is not limited, and may be provided on the top side, the front side, or the like of the casing 1.

For example, in an embodiment, referring to fig. 1, 4 and 5, the air inlet 1c is located at the top side of the housing 1, and the air return 1b is located at the front side of the housing 1. In this embodiment, the respective air intake processes of the air inlet 1c and the air return 1b are not substantially affected by each other. Specifically, because the wind wheel 21 and the heat exchanger 22 heat or refrigerate the indoor air, the wind power of the wind wheel 21 is large and the wind resistance is small, and the return air resistance of the return air inlet 1b is large due to the sterilization module 32 arranged in the second air duct, so that the air inlet 1c and the return air inlet 1b are arranged in different directions of the shell 1, and the adverse effect on the air inlet of the return air inlet 1b when the air inlet 1c enters the air can be avoided or reduced.

The number of the first air ducts may be one, two, or more. For example, referring to fig. 5, the number of the first air ducts is two, and the two first air ducts are located at two opposite sides of the second air duct along the length direction of the indoor unit of the air conditioner. Correspondingly, the number of the wind wheels 21 and the heat exchangers 22 is two, and the rotation axes of the two wind wheels 21 are parallel or on the same straight line. Wind wheel 21 that corresponds in two first wind channels can independent control, and the heat exchanger 22 that corresponds in two first wind channels also can independent control, so, can selectively follow the air supply of arbitrary one first supply-air outlet 1d, perhaps from two first supply-air outlets 1d air supply simultaneously, can carry out the differentiation air supply according to the different age bracket of user and position.

For example, if a young user is located at the front left of the air conditioner and an old user is located at the front right of the air conditioner, the first air supply outlet 1d corresponding to the first air duct on the left side may supply an air flow with a relatively low temperature, and the first air supply outlet 1d corresponding to the first air duct on the right side may supply an air flow with a relatively high temperature.

The specific structure of the casing 1 is not limited, for example, referring to fig. 5, the casing 1 includes a chassis 11 and a face frame assembly 12 that are fastened to each other, and the first air supply outlet 1d, the second air supply outlet 1f, and the air return opening 1b are all disposed on the face frame assembly 12. The air-conditioning indoor unit is hung on a wall through a chassis 11, and the chassis 11 is used as a structural stress piece. The chassis 11 and the face frame assembly 12 together enclose a first installation space and a second installation space, the first installation space and the second installation space are arranged along the length direction of the indoor unit of the air conditioner, the wind wheel 21 and the heat exchanger 22 are arranged in the first installation space, and the air supply mechanism 31 and the sterilization module 32 are located in the second installation space.

Specifically, with continued reference to fig. 5, the chassis 11 is configured with a volute 111, the wind wheel 21 is rotatably disposed in the volute 111, and a space inside the volute 111 is a part of the first air duct. It should be noted that, in the embodiment where the number of the first air ducts is two, the number of the volutes 111 is also two, and the two volutes 111 are located at two opposite sides of the first installation space along the length direction of the chassis 11.

In an embodiment, referring to fig. 1 to 3 and fig. 5, the indoor unit of the air conditioner includes a first opening/closing door 34, and the first opening/closing door 34 is movably connected to the face frame assembly 12 to selectively open or close the air return opening 1 b. When the first switch door 34 closes the air return opening 1b, the second air duct can only draw in fresh air from the fresh air inlet 1 a. It should be noted that the first opening/closing door 34 may only be in a fully opened state and a fully closed state, and may also control the opening/closing degree of the return air inlet 1b to adjust the amount of indoor return air entering the second air duct from the return air inlet 1 b.

The movable connection between the first switch door 34 and the face frame assembly 12 is not limited, and may be a sliding connection, a rotating connection, etc., and is not limited herein.

The first opening/closing door 34 may be disposed inside the face frame assembly 12, so that the first opening/closing door 34 is not exposed outside the casing 1, and does not affect the appearance of the indoor unit of the air conditioner. The first switch door 34 can also be arranged outside the face frame assembly 12, so that the first switch door 34 can be used as an appearance piece of the air-conditioning indoor unit, and the first switch door 34 can be made into a proper appearance shape, so that the appearance shape of the air-conditioning indoor unit is more beautiful and personalized.

Illustratively, the first switch door 34 overlies the outer surface of the face frame assembly 12 and is slidable relative to the face frame assembly 12. In this embodiment, the first switch door 34 slides against the outer surface of the face frame assembly 12, which can reduce the space occupied by the first switch door 34 during the movement process; the first opening/closing door 34 is disposed outside the face frame assembly 12, and the first opening/closing door 34 serves as an external appearance face of the air conditioning indoor unit. The sliding direction of the first opening/closing door 34 is not limited, and may be, for example, a vertical direction, or a longitudinal direction of the indoor unit of an air conditioner. Illustratively, in the present embodiment, the first opening/closing door 34 extends in the up-down direction, so that the first opening/closing door 34 on the ground affects the air supply from the first air supply outlet 1 b.

In an embodiment, referring to fig. 4, at least two guide ribs 121 disposed at intervals are disposed on an outer surface of the panel frame assembly 12, the guide ribs 121 extend along a sliding direction of the first switch door 34, for example, the guide ribs 121 extend along an up-down direction, the first switch door 34 is slidably clamped between the two guide ribs 121, and the two guide ribs 121 guide movement of the first switch door 34, so that the movement of the first switch door 34 is smoother and more stable.

The specific shape of the return air inlet 1b is not limited, and may be, for example, a large hole, that is, the number of the holes is only one, and the area is large, so as to meet the return air flow demand, wherein the shape of the large hole is not limited, and may be, for example, a circle, a polygon, an ellipse, and the like, and is not limited herein. For another example, referring to fig. 4, the air return opening 1b is a set of a plurality of first small holes, so that, on one hand, a hole with a larger size is prevented from being formed on the face frame assembly 12, thereby preventing the appearance from being affected and also preventing the structural strength of the face frame assembly 12 from being reduced, and on the other hand, foreign matters can be prevented from entering the second air duct from the air return opening 1 b.

The specific shape of the second air supply outlet 1f is not limited, and may be, for example, a large hole, that is, the number of the holes is only one, and the area is large, so as to meet the requirement of the return air flow rate, wherein the shape of the large hole is not limited, and may be, for example, a circle, a polygon, an ellipse, and the like, and is not limited herein. For another example, referring to fig. 4, the second air outlet 1f is a set of a plurality of second small holes, so as to avoid forming a hole with a larger size on the face frame assembly 12, avoid affecting the appearance, and avoid reducing the structural strength of the face frame assembly 12; in addition, the air supply from the second air supply outlet 1f can be more gentle and uniform.

Continuing to refer to fig. 4 by way of example, the front outer surface of the face frame assembly 12 is provided with a mounting area 12a, the air return opening 1b and the second air supply opening 1f are both located in the mounting area 12a, the air return opening 1b is a set of a plurality of first small holes, and the second air supply opening 1f is a set of a plurality of second small holes, referring to fig. 8, the first switch door 34 is provided with a through hole array 34a, and the through hole array 34a is exemplarily distributed almost densely on the whole first switch door 34; the first switch door 34 is contoured to fit the mounting area 12 a; referring to fig. 1 and 2, when the first switch door 34 is located at a position covering the installation area 12a, the first small holes and the second small holes are communicated with the through hole array 34a, and at this time, the air return opening 1b is in an open state, and the second air supply opening 1f is also in an open state; referring to fig. 3, when the first switch door 34 slides to a position avoiding the second air supply opening 1f, the through hole array 34a and the plurality of first small holes are arranged in a staggered manner, the air return opening 1b is in a closed state, and the second air supply opening 1f is also in an open state, that is, the second air supply opening 1f is always in an open state. In this embodiment, the first opening/closing door 34 is matched with the aperture of the frame assembly 12, so that the opening/closing of the air return opening 1b by the first opening/closing door 34 is controlled, the air supply of the second air supply opening 1f is not affected, and the appearance of the first opening/closing door 34 is also improved.

In an embodiment, referring to fig. 5 and fig. 6, the indoor unit of an air conditioner includes a box 13, the box 13 is disposed in the second installation space, the sterilization module 32 and the air supply mechanism 31 are both disposed in the box 13, and the space in the box 13 forms a second air duct. Specifically, the box body 13 can be preassembled into a preassembled module, and the preassembled module is integrally placed into the second installation space, so that the modular design and the modular assembly are facilitated, and the assembly efficiency is improved.

The outer contour of the case 13 is adapted to the face frame assembly 12 such that the case 13 is embedded within the face frame assembly 12, and in particular, may be placed into the face frame assembly 12 from the rear side of the face frame assembly 12. Referring to fig. 6, the inner surface of the face frame assembly 12 contacts the outer surface of the box 13, the box 13 is provided with a first opening 13a and a second opening 13b, the first opening 13a is aligned with the return air inlet 1b, and the second opening 13b is aligned with the second supply air inlet 1 f. Referring to fig. 7, the fresh air inlet 1a is disposed on the rear sidewall of the box 13; specifically, an avoiding opening is formed in the base plate 11, so that the fresh air pipe is connected to the fresh air inlet 1 a.

Referring to fig. 6, in an embodiment, the housing 1 includes a second switch door 35 movably connected to the box 13, and the second switch door 35 is disposed at the fresh air inlet 1a to selectively open or close the fresh air inlet 1 a. When the second opening/closing door 35 closes the fresh air inlet 1a, the second duct can only draw in the indoor return air from the return air inlet 1 b. It should be noted that the second opening/closing door 35 may only be in a fully opened state and a fully closed state, and may also control the opening/closing degree of the fresh air inlet 1a to adjust the fresh air volume entering the second air duct from the fresh air inlet 1 a.

In an embodiment, referring to fig. 6, the indoor unit of the air conditioner includes a filter assembly 33 disposed in the second air duct, and the airflow from the fresh air inlet 1a flows through the filter assembly 33. Specifically, filter screen subassembly 33 includes filter screen 331, and filter screen 331 can intercept substances such as pollen, dust that wrap up in the outdoor new trend, plays the purification effect to the new trend that gets into indoor. The specific type of the screen 331 is not limited, and for example, a HEPA (High efficiency particulate air Filter) screen is used. The screen 331 cannot cause a large wind resistance to the air blowing mechanism 31. Generally speaking, the indoor chance of air conditioner will outdoor new trend water conservancy diversion to new trend entry 1a through external new trend pipe, and the new trend pipe can pass the wall body, and consequently, the pipe diameter of new trend pipe is less relatively, and pipeline resistance is great relatively, consequently, should avoid filter screen 331 to increase the windage too much as far as possible, avoids leading to the new trend amount of wind undersize.

In one embodiment, with continued reference to fig. 6, the filter assembly 33 further includes a second frame 332, the filter 331 is disposed on the second frame 332, and the second frame 332 provides a mounting support for the filter 331 and facilitates connection with the housing 1.

The specific type of the air blowing mechanism in the embodiment of the present application is not limited as long as the air flow in the second air duct can be blown out from the second air blowing port 1 f. Illustratively, the air supply mechanism is a centrifugal fan.

An air conditioner comprises an air conditioner outdoor unit and any one of the air conditioner indoor units, wherein the air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An indoor unit of an air conditioner, comprising:

the air conditioner comprises a shell (1), wherein the shell (1) is provided with a fresh air inlet (1a), a return air inlet (1b), an air inlet (1c), a first air supply outlet (1d), a second air supply outlet (1f), a first air channel and a second air channel which are independent of each other; the first air channel is communicated with the air inlet (1c) and the first air supply outlet (1d), and the fresh air inlet (1a), the air return inlet (1b) and the second air supply outlet (1f) are communicated with the second air channel;

the wind wheel (21), the said wind wheel (21) is set up in the said first wind channel;

the heat exchanger (22), the said heat exchanger (22) is set up in the air inlet side of the said wind wheel (21);

the air supply mechanism (31) is arranged in the second air channel, so that the airflow from the fresh air inlet (1a) and/or the air return opening (1b) is sent out from the second air supply opening (1 f);

a sterilization module (32) disposed in the second air duct, wherein the airflow from the air return opening (1b) flows through the sterilization module (32).

2. An indoor unit for an air conditioner according to claim 1, wherein the first air blowing port (1d) and the second air blowing port (1f) are provided on a front side of the casing (1), and a position of the second air blowing port (1f) is higher than a position of the first air blowing port (1 d).

3. The indoor unit of air conditioner according to claim 1, wherein the air intake opening (1c) is located at a top side of the casing (1), and the air return opening (1b) is located at a front side of the casing (1).

4. The indoor unit of an air conditioner as claimed in claim 1, wherein the number of the first air ducts is two, the two first air ducts are located on two opposite sides of the second air duct along the length direction of the indoor unit of an air conditioner, and each first air duct is provided with the wind wheel (21) and the heat exchanger (22) correspondingly.

5. An indoor unit according to claim 1, comprising a screen assembly (33) provided in the second air duct, wherein the air flow from the fresh air inlet (1a) passes through the screen assembly (33).

6. The indoor unit of an air conditioner according to any one of claims 1 to 5, wherein the casing (1) includes a chassis (11) and a face frame assembly (12) that are fastened to each other, the first air supply outlet (1d), the second air supply outlet (1f), and the air return opening (1b) are all disposed on the face frame assembly (12), the chassis (11) and the face frame assembly (12) together enclose a first installation space and a second installation space, the first installation space and the second installation space are arranged along a length direction of the indoor unit of an air conditioner, the wind wheel (21) and the heat exchanger (22) are disposed in the first installation space, and the air supply mechanism (31) and the sterilization module (32) are disposed in the second installation space.

7. The indoor unit of air conditioner according to claim 6, wherein the casing (1) includes a first opening and closing door (34), and the first opening and closing door (34) is movably connected to the face frame assembly (12) to selectively open or close the return air opening (1 b).

8. The indoor unit of claim 7, wherein the first opening/closing door (34) is overlapped on the outer surface of the face frame assembly (12) and can slide relative to the face frame assembly (12).

9. The indoor unit of claim 7, wherein the front outer surface of the face frame assembly (12) is provided with a mounting area (12a), the return air opening (1b) and the second air supply opening (1f) are both provided in the mounting area (12a), the return air opening (1b) is a set of a plurality of first small holes, the second air supply opening (1f) is a set of a plurality of second small holes, and the first opening/closing door (34) is provided with a through hole array (34 a); when the first switch door (34) is in a position covering the mounting area (12a), the first small holes and the second small holes are communicated with the through hole array (34 a); when the first switch door (34) slides to a position avoiding the second air supply outlet (1f), the through hole array (34a) and the first small holes are arranged in a staggered mode, and the air return opening (1b) is in a closed state.

10. The indoor unit of claim 6, wherein the casing (1) includes a casing (13), the casing (13) is disposed in the second installation space, the sterilization module (32) and the air blowing mechanism (31) are both disposed in the casing (13), and a space in the casing (13) is formed as the second air passage.

11. Air conditioning indoor unit according to claim 10, characterized in that the outer contour of the casing (13) is adapted to the face frame assembly (12) so that the casing (13) is embedded in the face frame assembly (12), the casing (13) being provided with a first opening (13a) and a second opening (13b), the inner surface of the face frame assembly (12) being in contact with the outer surface of the casing (13), the first opening (13a) being aligned with the return air opening (1b), the second opening (13b) being aligned with the second supply air opening (1 f).

12. The indoor unit of air-conditioning according to claim 10, wherein the fresh air inlet (1a) is provided on a rear side wall of the casing (13); casing (1) including with box (13) swing joint's second switch door (35), second switch door (35) set up in new trend entry (1a) department to selectively open or close new trend entry (1 a).

13. An air conditioner comprising an outdoor unit and an indoor unit according to any one of claims 1 to 12, wherein the outdoor unit and the indoor unit are connected by refrigerant pipes.