WO2022012633A1 - Indoor unit of air conditioner and air conditioner - Google Patents

Abstract

An indoor unit of an air conditioner and an air conditioner. The indoor unit comprises a housing (10) and a first air duct (11) arranged in the housing (10). The indoor unit further comprises a second air duct (12) arranged on the housing (10), an air inlet of the second air duct (12) is configured to communicate with the outside, and an air outlet of the second air duct (12) is located on a side of an air inlet of the first air duct (11). The indoor unit of the air conditioner changes the indoor temperature during operation, and negative pressure generated at the air inlet of the first air duct (11) causes the second air duct (12) to take in fresh air. Thus, the air quality of an indoor place is improved at a low cost by using a simple structure.

Description

Indoor unit of air conditioner and air conditioner

This application claims the priority of the Chinese patent application filed on July 15, 2020 with the application number 202010683333.4 and the invention title is "an indoor unit for an air conditioner and an air conditioner", the entire contents of which are incorporated herein by reference middle.

technical field

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

Background technique

At present, air conditioners are widely used in people's daily life. In the process of using traditional air conditioners, the indoor space needs to be closed, so the indoor air quality cannot be kept good; as people have higher and higher requirements for living environment, people begin to increase the use of fresh air systems and air conditioners. When the air conditioner is turned on, the fresh air is turned on at the same time. The system introduces the fresh air from the outside into the room and maintains a good indoor air environment.

However, the existing air conditioner and fresh air system are operated separately. The fresh air system absorbs the outdoor air, and a separate device for sucking in fresh air from the outside is required, and a device for feeding the sucked air into the room is also required. The cost of the whole system High; and the maintenance cost of the fresh air system is relatively high.

Therefore, the existing technology still needs to be improved and developed.

technical problem

The present application provides an indoor unit of an air conditioner and an air conditioner, aiming at solving the problem of increased installation cost and maintenance cost when a fresh air system is used together with an air conditioner.

technical solutions

The technical solution of this application is as follows:

An indoor unit of an air conditioner, the indoor unit includes a casing and a first air duct arranged in the casing, wherein the indoor unit further comprises: a second air duct arranged on the casing; the The air inlet of the second air duct is used to communicate with the outdoors, and the air outlet of the second air duct is located on the side of the air inlet of the first air duct.

In the indoor unit of the air conditioner, the air outlet of the second air duct is provided with an opening and closing assembly, and the opening and closing assembly is used to control the opening and closing of the air outlet of the second air duct.

The indoor unit of the air conditioner, wherein the air outlet of the second air duct is further provided with a guide assembly, and the guide assembly is used to guide the air flowing out of the air outlet of the second air duct to the first air air inlet.

In the indoor unit of the air conditioner, the guide assembly and the opening and closing assembly are designed in an integrated manner.

The indoor unit of the air conditioner, wherein the opening and closing assembly includes a connecting piece and a cover piece, and the connecting piece can drive the cover piece to rise or fall at the air outlet of the second air duct. to open or close the air outlet of the second air duct.

In the indoor unit of the air conditioner, wherein the guide assembly and the cover member in the opening and closing assembly are integrally designed.

The indoor unit of the air conditioner, wherein the guide assembly comprises: a lifter provided on the casing, and a guide plate connected to the lifter.

In the indoor unit of the air conditioner, the lifter is connected to an end of the guide plate away from the air inlet of the first air duct, or the lifter is connected to the center of the guide plate.

In the indoor unit of the air conditioner, the guide plate can close the air outlet of the second air duct.

In the indoor unit of the air conditioner, the lifter includes a lift rod or a lift plate.

In the indoor unit of the air conditioner, the guide plate is one of a circular plate, a square plate or a rectangular plate.

In the indoor unit of the air conditioner, the guide plate is a grill guide plate.

In the indoor unit of the air conditioner, wherein the grille ribs in the grille guide plate are inclined from top to bottom to the air inlet away from the first air duct.

The indoor unit of the air conditioner, wherein the air outlet of the second air duct is provided with a grille baffle, and the grille baffle cooperates with the grille guide plate to close the outlet of the second air duct. tuyere.

In the indoor unit of the air conditioner, a purifying device is provided in the second air duct, and the purifying device is used to purify the air in the second air duct.

In the indoor unit of the air conditioner, a partition plate is arranged in the second air duct, the purification device is arranged on the partition plate, and a through hole is provided in the corresponding position of the partition plate and the purification device.

In the indoor unit of the air conditioner, the purification device is located on the side of the partition plate away from the air outlet of the second air duct, and the edge of the through hole is bent to the side away from the purification device.

The present application further discloses an air conditioner, which includes the indoor unit of the air conditioner described in any one of the above.

beneficial effect

Compared with the prior art, the embodiments of the present application have the following advantages:

When the indoor unit involved in the present application works, when the indoor unit is in use, the air at the air inlet of the first air duct is sucked into the first air duct and blown out from the air outlet of the first air duct, resulting in the air entering the first air duct. Negative pressure is formed at the air outlet, and the air outlet of the second air duct is located at the edge of the air inlet of the first air duct, so the air in the second air duct is affected by the negative pressure at the air inlet of the first air duct and enters the room; then Negative pressure is generated in the second air duct, and then the air inlet of the second air duct generates suction for sucking air from the outside; therefore, the indoor unit of the present application can change the indoor temperature while inhaling the fresh air from the outside, improving the air quality of the indoor environment; Moreover, the structure is simple, the occupied space is small, no additional power is required, energy consumption is reduced, and maintenance costs are reduced.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of an indoor unit casing of an air conditioner according to an embodiment of the application;

2 is a top view of an indoor unit casing of an air conditioner according to an embodiment of the application;

3 is a side view of an indoor unit casing and a guide assembly of an air conditioner according to an embodiment of the application;

4 is a side view of an indoor unit casing and an opening and closing assembly of an air conditioner in an embodiment of the application;

5 is a cross-sectional view of an indoor unit casing of an air conditioner according to an embodiment of the application;

6 is a schematic structural diagram of an indoor unit casing of an air conditioner in another embodiment of the application;

7 is a partial structural schematic diagram of an indoor unit casing of an air conditioner in another embodiment of the present application;

8 is a partial structural schematic diagram of an indoor unit casing of an air conditioner in another embodiment of the present application;

9 is a partial structural schematic diagram of an indoor unit casing of an air conditioner in another embodiment of the present application;

FIG. 10 is a partial structural schematic diagram of an indoor unit casing of an air conditioner according to another embodiment of the present application.

Among them, 10, shell; 11, first air duct; 12, second air duct; 121, grille baffle; 122, purification device; 123, partition plate; 1231, through hole; 13, guide assembly; 131, lifter; 132, guide plate; 14, opening and closing assembly; 141, connecting piece; 142, cover and closing piece.

Embodiments of the present application

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

An air conditioner is an air conditioner, which refers to a device that can adjust and control the temperature, humidity, cleanliness and other parameters of the ambient air in the building. Home air conditioners are a very common and typical type of air conditioners.

The fresh air system is an independent air treatment system composed of an air supply system and an air exhaust system. The outdoor air is purified by fans and introduced into the room, and the indoor air is exhausted through pipes, so that people can enjoy fresh air without opening windows and maintain the indoor air. The cleanliness of the air, and the increase of air flow, can discharge indoor odors, effectively reduce indoor humidity, and reduce the breeding of various bacteria.

In daily life, with the gradual deepening of people's awareness of health, the function of fresh air has increasingly become a new demand for every family. In order to meet people's need to close the window when turning on the air conditioner, and at the same time to obtain good indoor air quality, people often choose to turn it on at the same time. Air conditioning and fresh air systems, the wind power of the fresh air system cannot make the air entering the room quickly diffuse to various areas, and the outdoor temperature is high, the fresh air entering the room from the outside will also increase the indoor temperature, so people often install the fresh air system to Near the air conditioner, for example, when installing the central air conditioner, the ceiling and the fresh air system are added at the same time; however, the investment and maintenance costs of the traditional two kinds of equipment are high, and the wall-mounted fresh air fan needs to be installed indoors independently, which takes up space and affects the appearance of the home.

Referring to FIGS. 1 to 5 , an indoor unit of an air conditioner disclosed in this application, the indoor unit includes a casing 10 and a first air duct 11 arranged in the casing 10 , wherein the indoor unit further includes : the second air duct 12 arranged on the housing 10 ; the air inlet of the second air duct 12 is used to communicate with the outdoors, and the air outlet of the second air duct 12 is located in the first air duct 11 on the side of the air inlet.

When the indoor unit involved in the present application works, the air at the air inlet of the first air duct 11 is sucked into the first air duct 11 and blown out from the outlet of the first air duct 11, resulting in the formation of the air at the air inlet of the first air duct 11. negative pressure, and the air outlet of the second air duct 12 is located at the edge of the air inlet of the first air duct 11, so the air in the second air duct 12 is affected by the negative pressure at the air inlet of the first air duct 11 and enters the room Then the negative pressure is generated in the second air duct 12, and then the air inlet of the second air duct 12 generates suction to suck air outdoors; so the indoor unit of the present application can change the indoor temperature while inhaling outdoor fresh air, improving indoor air. The air quality of the environment can quickly reduce the concentration of indoor fine particles (fine Particulate matter, PM2.5), carbon dioxide concentration, volatile organic compounds (volatile organic compounds, VOC) concentration effect; and simple structure, small footprint, no additional power, reduce energy consumption, reduce maintenance costs.

Specifically, the air outlet of the second air duct 12 is provided with an opening and closing assembly 14 , and the opening and closing assembly is used to control the opening and closing of the air outlet of the second air duct 12 . The air conditioner indoor unit disclosed in this embodiment can control whether the second air duct 12 is ventilated through the opening and closing assembly 14, that is, whether to control whether to absorb fresh air; when the air environment in the indoor place is not good and affects people's health, the opening and closing assembly 14. Open the air outlet of the second air duct 12, so that the air conditioner can smoothly generate the negative pressure of inhaling fresh air and increase the fresh air function; The air outlet of channel 12 is closed to increase the independent control of the fresh air function of the air conditioner, making the use of the air conditioner more user-friendly.

Further, the opening and closing assembly 14 includes a connecting member 141 and a cover member 142 , and the connecting member 141 can drive the cover member 142 to rise or fall at the air outlet of the second air duct 12 for the purpose of Open or close the air outlet of the second air duct 12 . In this embodiment, the connector 141 can be arranged on the housing 10, and the cover 142 is driven by the connector 141 to control the opening and closing of the air outlet of the second air duct 12. When the connector 141 is in the lowered state, the cover is closed. The component 142 is covered on the air outlet of the second air duct 12, the second air duct 12 is closed, the fresh air function is stopped, and at the same time, dust, debris or mosquitoes in the air are prevented from falling into the second air duct 12, and the second air duct 12 is kept. The environment is clean; when the connecting piece 141 is in the ascending state, the cover piece 142 is separated from the air outlet of the second air duct 12, the second air duct 12 starts to inhale fresh air, and the second air duct 12 starts to be opened and closed in this way. In the air duct 12 , the speed of alignment between the cover 142 and the second air duct 12 is fast, which can quickly control the air outlet of the second air duct 12 and reduce the friction between the cover 142 and the casing.

Specifically, the cover member 142 is one of a circular plate, a square plate or a rectangular plate.

Of course, the indoor unit may also include a drive assembly. The connecting rod 141 is connected to the drive assembly, not in contact with the housing 10 , and driven by the drive assembly to ascend or descend at the air outlet of the second air duct 12 .

Specifically, the housing 10 may be provided with a receiving groove, and the connecting member 141 slides up and down in the receiving groove to drive the connecting member 141 to move. A drive motor connected to an external power source is arranged in the receiving groove, and is connected to the connecting piece 141 through the motor drive rod. rise or fall at the same time.

In addition, when the connecting piece is in the rising state, the cover piece rises with the rise of the connecting piece. At this time, the air flowing out of the second air duct 12 will collide with the cover piece when entering the room, and the cover piece prevents the air from moving along the vertical direction. The direction of the surface of the casing 10 is diffused, and instead spreads out along the surface of the casing 10 to the surrounding, which helps the fresh air flow to the air inlet of the first air duct 11 near the second air duct 12, and the cover part also has a certain amount at this time. guiding role.

Specifically, the air outlet of the second air duct 12 is further provided with a guide assembly 13 , and the guide assembly 13 is used to guide the air flowing out of the air outlet of the second air duct 12 to the air outlet of the first air duct 11 . Inlet. The air is a gas and is prone to irregular movements. Therefore, after the air outlet of the second air duct 12 is blown out, it is easy to spread around. The guide assembly 13 is used to guide the inhaled fresh air to the air inlet of the first air duct 11, so that the fresh air After entering the room, it is sucked into the first air duct 11, firstly cooled or heated by the air conditioner heat exchanger, and then blown from the first air duct 11 to all corners of the indoor place, which increases the speed of fresh air diffusion in the room. The fresh air enters the indoor environment after cooling, so the influence on the indoor temperature is reduced, which is conducive to maintaining a lower indoor temperature.

Further, the guide assembly 13 and the opening and closing assembly 14 are designed integrally. The guide assembly 13 and the opening and closing assembly 14 are designed integrally to reduce material waste and facilitate the simplification of the operation process.

Specifically, the guide assembly 13 and the cover member 142 in the opening and closing assembly 14 are integrally designed. That is to say, the cover member 142 is designed to be able to cover the air outlet of the second air duct 12 and at the same time to change the flow direction of the air; when the fresh air function is turned off, the cover member 142 falls on the casing and closes When the air outlet of the second air duct 12 is opened, the cover member 142 rises and stops at a position opposite to the air outlet of the second air duct 12, and the fresh air blown out from the second air duct 12 flows to the cover member 142 and then change the direction of movement, and flow to the vicinity of the air inlet of the first air duct 11 .

Further, the guide assembly 13 includes: a lifter 131 disposed on the housing 10 , and a guide plate 132 connected to the lifter 131 . In this embodiment, the lifter 131 is disposed on the housing 10 , and one end of the lifter 131 away from the housing 10 is connected to the guide plate 132 , and the lifter 131 is on the housing 10 along the air outlet direction of the air outlet of the second air duct 12 . It moves up and down to drive the guide plate 132 close to or away from the air outlet of the second air duct 12; when the guide plate 132 is close to the air outlet of the second air duct 12, a large amount of air flowing out of the second air duct 12 collides with the guide plate 132 and reverses Rebounding, creating greater resistance to the subsequent air flowing out of the second air duct 12, resulting in a reduction in the flow of fresh air flowing into the room; when the guide plate 132 is far away from the air outlet of the second air duct 12, the second air duct 12 The outgoing air scatters a lot, and collides with the guide plate 132 less, so the resistance to the subsequent incoming air is small, so the flow of fresh air flowing into the room increases, and by controlling the resistance of the guide plate 132 to the fresh air, the control The air flow of the air outlet of the second air duct 12 is simple in structure and convenient in operation; this is equivalent to changing the efficiency of the indoor unit inhaling fresh air, and the volume of fresh air inhaled into the room can be adjusted according to the specific indoor air environment to meet the use requirements. .

Specifically, the lifter 131 is connected to one end of the guide plate 132 away from the air inlet of the first air duct 11 (ie, an L-shaped guide assembly is formed), or the lifter 131 is connected to the guide plate 132 in the center position (ie forming a T-shaped guide assembly). When fresh air flows out from the air outlet of the second air duct 12, it will first impact the guide plate 132, and after being blocked by the guide plate 132, it will change its direction and spread around; One end of the air inlet of the 11 Inhalation. The lifter 131 cooperates with the guide plate 132 to make the fresh air flow directly to the air inlet of the first air duct 11 instead of slowly diffusing into the room.

Specifically, the housing 10 is provided with a receiving groove, and the lifter 131 slides up and down in the receiving groove, which can drive the guide plate 132 to move. A drive motor connected to an external power supply is arranged in the groove, and is connected to the lifter 131 through the motor drive rod. or drop.

Of course, the fresh air module is connected in series with the air conditioner, and the same switch can also be used to control the heat exchange system and the fresh air module of the air conditioner together, which makes the operation easier.

Specifically, the guide plate 132 can close the air outlet of the second air duct 12 . When the lifter 131 descends, the guide plate 132 is attached to the housing 10 to close the air outlet of the second air duct 12 , so that the guide plate 132 functions as an opening and closing assembly, which can control the air outlet of the second air duct 12 When the user does not need the fresh air function, the fresh air function can be turned off alone. When the fresh air function is stopped, the guide plate 132 closes the air outlet of the second air duct 12 to prevent dust, bacteria and indoor air. The outflow function, and the guide plate 132 is lowered to almost the same level as the housing 10, which can reduce the risk of the guide assembly 13 being bumped and prevent the guide assembly 13 from breaking; There is no smooth air flow in the air duct 12 , so the outside air will not enter the second air duct 12 from the air inlet of the second air duct 12 , which reduces the situation of outdoor ventilation and helps to maintain the second air duct 12 clean plumbing environment.

Specifically, the guide assembly 13 and the opening and closing assembly disclosed in the present application can be of the same structure, and at the same time play the role of guiding and controlling the opening and closing of the air outlet of the second air duct 12 , which can kill two birds with one stone and save costs.

Further, the lifter 131 includes a lift rod or a lift plate. When the lift plate is used, since the lift plate is connected to the end of the guide plate 132 away from the air inlet of the first air duct 11, the air flowing out of the air outlet of the second air duct 12 can be blocked, so that more air flows to the first air duct 12. Air inlet of air duct 11.

Specifically, the guide plate 132 is one of a circular plate, a square plate or a rectangular plate.

As shown in FIG. 6 , as another embodiment of the present application, it is disclosed that the guide plate 132 is a grid guide plate 132 . The guide plate 132 is arranged facing the air outlet of the second air duct 12 . When the fresh air module is working, fresh air continues to be blown out from the air outlet of the second air duct 12 , forming a continuous impact force on the guide plate 132 . The connection between the lifters 131 is subject to a large shear force and is easy to break. A grille is provided on the guide plate 132, so that part of the fresh air can pass through the guide plate 132 through the through holes on the grille, and the guide plate 132 is reduced. In addition, the guide plate 132 is connected to the lifter 131, the impact force on the guide plate 132 is reduced, the lifter 131 can be prevented from falling out of the receiving groove, and the risk of the guide assembly 13 falling off as a whole is reduced.

Further, the grille ribs in the grille guide plate 132 are inclined from top to bottom away from the air inlet of the first air duct 11 . When the fresh air flows out from the grille and passes through the grille guide plate 132, its movement direction is restricted, and the inclination of the grille makes the air passing through the perforations on the grille guide plate 132 to be directed toward the inlet near the first air duct 11. One side of the tuyere flows, that is to say, the fresh air is partially blocked by the grille guide plate 132 and the lifter 131, and is directed to the air inlet of the first air duct 11, and the rest passes through the grille guide plate 132, and also moves toward the first air duct 132. The position near the air inlet of the air duct 11 flows, and the flow of fresh air is still close to the air inlet of the first air duct 11 in general, which increases the probability that the fresh air is affected by the suction of the air inlet of the first air duct 11, and reduces the air intake of the first air duct 11. The possibility of higher heat air entering the interior space directly.

As shown in FIGS. 7 and 8 , the air outlet of the second air duct 12 is provided with a grill baffle 121 , and the grill baffle 121 cooperates with the grill guide plate 132 to close the second air duct 12 air outlets. When the fresh air function is turned off, the guide assembly 13 descends, and when the grill guide plate 132 descends to the air outlet of the second air duct 12, the grill on the grill guide plate 132 is inserted into the through hole on the grill baffle 121, The grids with the through holes formed on the grid baffle 121 are also inserted into the through holes on the grid guide plate 132, and the two are fitted together to form a complete flat plate. The grid guide plate 132 and the grid baffle 121 cooperate with each other , close the air outlet of the second air duct 12, reduce the influence of outdoor ventilation, and also reduce the loss of indoor cold air through the second air duct 12; in addition, during use, the grille baffle 121 can also prevent indoor debris from entering the second air duct 12. The air duct 12 prevents the second air duct 12 from being blocked.

Specifically, a purification device 122 is provided in the second air duct 12 , and the purification device 122 is used to purify the air in the second air duct 12 . The air inhaled by the air inlet of the second air duct 12 may contain a lot of impurities. After being purified by the purification device 122, the content of harmful substances such as tiny particles, bacteria, viruses, etc. in the fresh air is reduced. After entering the indoor environment, it is beneficial to improve the indoor air quality. Air cleanliness, providing users with a more comfortable living environment.

It should be noted that the purification device 122 involved in the embodiments of the present application may be a filter element structure containing activated carbon fixed in the second air duct 12, a filter element containing a melt-blown cloth layer, or a filter element containing filter paper, etc. Play the role of purifying fresh air.

In addition, in order to further improve the comfort of the indoor environment, a fragrance component can also be arranged in the second air duct 12 to bring fragrance molecules into the indoor environment through fresh air to cover the peculiar smell in the room and further improve the comfort of the indoor environment.

Specifically, the second air duct 12 is provided with a partition plate 123 , the purification device 122 is disposed on the partition plate 123 , and the partition plate 123 is provided with a through hole 1231 corresponding to the purification device 122 . When the indoor unit is working, a negative pressure is generated. After entering the second air duct 12, the air inhaled from the outside must be filtered by the purification device 122, and then pass through the through hole 1231 to enter the second air duct 12, and then enter the indoor place, ensuring the entry The air quality of indoor fresh air also prevents sundries from entering the second air duct 12 .

Further, the purification device 122 is located on the side of the partition plate 123 away from the air outlet of the second air duct 12 , and the edge of the through hole 1231 is bent to the side away from the purification device 122 . After the air is purified, it enters the second air duct 12, and when it hits the side wall of the second air duct 12, a partially chaotic edge airflow is easily generated. A bent portion is set at the position of the through hole 1231 to reduce the airflow when it flows near the through hole 1231. Backflow, maintain the positive flow of the air in the second air duct 12, and flow out from the air outlet of the second air duct 12 as soon as possible.

Further, a hemispherical convex portion may be provided on the inner wall of the second air duct 12 , and the convex portion is disposed in the second air duct 12 at a position opposite to the through hole 1231 . After the air passes through the through hole 1231, it first contacts the raised part. The raised part is hemispherical, the middle part is high, and the edge part is low, so it has a certain guidance for the air, changing the flow direction of the air, so that the air is perpendicular to the first part. The flow of the side wall of the second air duct 12 is changed to flow along the side wall of the second air duct 12 , which reduces the rebound of the air after collision and maintains the smooth flow of the subsequent air.

As shown in FIG. 9 , as another embodiment of the present application, it is disclosed that the cross section of the guide assembly 13 is an L-shaped structure, and is composed of a vertical lifter 131 and a horizontal guide plate 132 . The lifter 131 and the guide The plates 132 are arranged at right angles.

As shown in FIG. 10 , as another embodiment of the present application, it is disclosed that the cross-section of the guide assembly 13 is a T-shaped structure, which is composed of a vertical lifter 131 and a horizontal guide plate 132 . The lifter 131 and the guide The center of the plate 132 is connected.

As another embodiment of the present application, an air conditioner is disclosed, which includes the indoor unit of the air conditioner as described above.

It is to be understood that the present application is not limited to the precise structures described above and illustrated in the accompanying drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims (20)

1. An indoor unit of an air conditioner, the indoor unit includes a casing and a first air duct arranged in the casing, wherein the indoor unit further comprises: a second air duct arranged on the casing; the The air inlet of the second air duct is used to communicate with the outdoors, and the air outlet of the second air duct is located on the side of the air inlet of the first air duct.
2. The indoor unit of the air conditioner according to claim 1, wherein the air outlet of the second air duct is provided with an opening and closing assembly, and the opening and closing assembly is used to control the opening and closing of the air outlet of the second air duct .
3. The indoor unit of the air conditioner according to claim 2, wherein the air outlet of the second air duct is further provided with a guide assembly, and the guide assembly is used to guide the air flowing out of the air outlet of the second air duct to the air outlet. Describe the air inlet of the first air duct.
4. The indoor unit of an air conditioner according to claim 3, wherein the guide assembly and the opening and closing assembly are designed in an integrated manner.
5. The indoor unit of the air conditioner according to claim 3, wherein the opening and closing assembly comprises a connecting piece and a cover piece, and the connecting piece can drive the cover piece to rise at the air outlet of the second air duct or descend, for opening or closing the air outlet of the second air duct.
6. The indoor unit of the air conditioner according to claim 5, wherein the guide assembly and the cover member in the opening and closing assembly are integrally designed.
7. The indoor unit of the air conditioner according to claim 3, wherein the guide assembly includes a lifter provided on the housing, and a guide plate connected to the lifter.
8. The indoor unit of the air conditioner according to claim 7, wherein the lifter is connected to an end of the guide plate away from the air inlet of the first air duct.
9. The indoor unit of an air conditioner according to claim 7, wherein the lifter is connected to a center position of the guide plate.
10. The indoor unit of the air conditioner according to claim 7, wherein the guide plate can close the air outlet of the second air duct.
11. The indoor unit of the air conditioner according to any one of claims 7 to 10, wherein the lifter includes a lift rod or a lift plate.
12. The indoor unit of an air conditioner according to any one of claims 7 to 11, wherein the guide plate is one of a circular plate, a square plate or a rectangular plate.
13. The indoor unit of an air conditioner according to any one of claims 7 to 12, wherein the guide plate is a grill guide plate.
14. The indoor unit of an air conditioner according to claim 13, wherein the grille ribs in the grille guide plate are inclined from top to bottom and away from the air inlet of the first air duct.
15. The indoor unit of the air conditioner according to claim 13, wherein the air outlet of the second air duct is provided with a grille baffle, and the grille baffle cooperates with the grille guide plate to close the second air duct. The air outlet of the air duct.
16. The indoor unit of the air conditioner according to claim 1, wherein a purifying device is provided in the second air duct, and the purifying device is used to purify the air in the second air duct.
17. The indoor unit of the air conditioner according to claim 16, wherein a partition plate is provided in the second air duct, and the purification device is provided on the partition plate.
18. The indoor unit of an air conditioner according to claim 17, wherein a through hole is provided at a position of the partition plate corresponding to the purification device.
19. The indoor unit of an air conditioner according to claim 18, wherein the purifying device is located on a side of the partition plate away from the air outlet of the second air duct, and the edge of the through hole faces away from the purifying device. Bend.
20. An air conditioner comprising the indoor unit of the air conditioner according to any one of claims 1 to 19.