CN223954277U

CN223954277U - Indoor unit of air conditioner

Info

Publication number: CN223954277U
Application number: CN202520664379.XU
Authority: CN
Inventors: 张震; 宋振兴; 杜永; 牟天一; 位向前
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2025-04-09
Filing date: 2025-04-09
Publication date: 2026-02-27
Anticipated expiration: 2035-04-09

Abstract

The application discloses an air conditioner indoor unit, and belongs to the technical field of air conditioners. The indoor unit of the air conditioner comprises an air return opening and an air outlet which are arranged on a shell, at least one fan which is arranged in the shell and close to the air return opening, an indoor heat exchanger which is arranged on the air outlet side of the fan, wherein the air outlet comprises a first air outlet and a second air outlet, one end of a first air guide pipe is communicated with the first air outlet, the other end of the first air guide pipe extends to face a direction far away from the shell, one end of the second air guide pipe is communicated with the second air outlet, and the other end of the second air guide pipe extends to face the lower part of the shell through bending.

Description

Indoor unit of air conditioner

Technical Field

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

Background

An air conditioner is an apparatus for adjusting and controlling parameters such as temperature, humidity, and flow rate of ambient air in a building or structure by manual means. An air conditioner generally includes an indoor unit and an outdoor unit.

The air conditioner indoor unit is used for refrigerating or heating, and the refrigerating airflow is easy to sink compared with the indoor air, and the heating airflow is easy to float compared with the indoor air.

However, if the air outlet is set to be horizontal, the air flow of the refrigerating air is blown from top to bottom in the room, so that the refrigerating air flow uniformly covers the room, the air flow of the refrigerating air is suspended at the top of the room, and the effect of uniformly covering the room by the air flow of the refrigerating air is not achieved, and conversely, if the air outlet is set to be downward, the effect of uniformly covering the room by the air flow of the refrigerating air is not achieved.

Therefore, based on the technical scheme, any situation that the refrigerating air flow or the heating air flow is not easy to uniformly cover the whole room inevitably exists during refrigeration or heating, so that the comfort of a human body is poor.

Disclosure of utility model

The application provides an indoor unit of an air conditioner, which is characterized in that a plurality of different air outlets are arranged to output refrigerating air flow or heating air flow respectively, and the air outlet directions of the first air outlet and the second air outlet are respectively guided by a first air guide pipe and a second air guide pipe, so that the output direction of the heating air flow faces to the lower part of a shell, the refrigerating air flow faces to the horizontal direction, the two air flows are further enabled to uniformly cover the whole room, and the comfort of a human body is improved.

In one aspect, an indoor unit of an air conditioner is provided, including:

The shell is provided with an air return opening and an air outlet, and the air return opening and the air outlet are distributed along the circumferential direction of the shell;

the fan is arranged in the shell;

an indoor heat exchanger arranged at the air outlet side of the fan and used for exchanging heat with the air flow passing through the indoor heat exchanger;

the air outlet comprises a first air outlet and a second air outlet, wherein the first air outlet and the second air outlet are respectively arranged on two adjacent side walls of the shell, and the first air outlet or the second air outlet is arranged on the side wall of the shell opposite to the leeward side of the indoor heat exchanger;

The first air valve is arranged between the indoor heat exchanger and the first air outlet and is used for communicating or closing the first air outlet with the lee side of the indoor heat exchanger;

The second air valve is arranged between the indoor heat exchanger and the second air outlet and is used for communicating or closing the second air outlet with the leeward side of the indoor heat exchanger;

One end of the first air guide pipe is communicated with the first air outlet, and the other end of the first air guide pipe extends to face a direction away from the shell;

One end of the second air guide pipe is communicated with the second air outlet, and the other end of the second air guide pipe extends through bending to face to the lower part of the shell;

When the refrigerating air flow is output, the second air valve is closed and the first air valve is opened, and the first air outlet outputs the refrigerating air flow to the horizontal direction deviating from the shell through the first air guide pipe.

In the air conditioner indoor unit, the first air outlet arranged on the front end face or the side end face of the shell is matched with the first air guide pipe to output the refrigerating air flow in the horizontal direction, the second air outlet arranged on the front end face or the side end face of the shell is matched with the second air guide pipe to output the heating air flow to the lower side of the shell, and the two air flows output by the same air conditioner indoor unit can cover the whole room, so that the comfort of a human body is improved.

In some embodiments, the air outlet further comprises a third air outlet, the third air outlet and the second air outlet are oppositely arranged on two adjacent side walls of the shell, and the third air outlet and the second air outlet are close to each other and communicated so as to output the heating air flow at the same time.

Based on the technical scheme, the output quantity of the heating air flow in the same time period is enhanced through the third air outlet, and the heating efficiency is increased.

In some embodiments, the air outlet further comprises a fourth air outlet, the fourth air outlet is arranged on the bottom end surface of the shell, and the fourth air outlet and the second air outlet are close to each other and communicated with each other so as to output the heating air flow at the same time.

Based on the technical scheme, the output quantity of the heating air flow in the same time period is enhanced through the fourth air outlet, and the heating air flow is directly output to the lower part of the shell through the fourth air outlet, so that the heating efficiency is improved.

In some embodiments, the air outlet further includes a fifth air outlet, the fifth air outlet and the first air outlet are relatively arranged on two adjacent side walls of the housing, and the fifth air outlet and the first air outlet are close to each other and are communicated with each other so as to output the refrigeration air flow at the same time

Based on the technical scheme, the output quantity of the refrigerating air flow in the same time period is enhanced through the fifth air outlet, so that the refrigerating efficiency is increased.

In some embodiments, the first air valve is located between the indoor heat exchanger and the first air outlet and the fifth air outlet, and is used for simultaneously communicating or closing the first air outlet, the fifth air outlet and the leeward side of the indoor heat exchanger.

Based on the technical scheme, the first air outlet and the fifth air outlet are simultaneously controlled to be air-out or stopped to be air-out through the first air valve, the air valve does not need to be additionally arranged corresponding to each air outlet, and the manufacturing cost is saved.

In some embodiments, the second air valve is located between the indoor heat exchanger and the second, third and fourth air outlets, and is used for simultaneously communicating or closing the second, third and fourth air outlets with the leeward side of the indoor heat exchanger.

Based on the technical scheme, the second air outlet, the third air outlet and the fourth air outlet are simultaneously controlled to be air-out or stopped to be air-out through the second air valve, the air valve is not required to be additionally arranged corresponding to each air outlet, and the manufacturing cost is saved.

In some embodiments, the return air inlet is formed in a side wall of the housing opposite the windward side of the indoor heat exchanger.

Based on the technical scheme, the air return port is arranged on the side wall of the shell opposite to the windward side of the indoor heat exchanger, a good air circulation path is formed relative to the first air outlet or the second air outlet at the other end of the shell, so that the refrigerating or heating air flow can be ensured to flow in the indoor space rapidly, and the working efficiency of the air conditioner is improved.

In some embodiments, the air return opening is disposed at the bottom end of the housing, and a preset distance is disposed between the air return opening and the fourth air outlet.

Based on the technical scheme, through setting up the air inlet operation that presets the interval in order to make the return air inlet with the air-out operation of fourth air outlet mutually noninterfere, avoid the air current of output to flow back immediately in order to reduce the work efficiency of air conditioner.

In some embodiments, the air conditioning indoor unit further comprises:

the first grid bars are arranged at the air return opening in parallel and used for guiding air flow to flow back into the shell based on a first direction;

The second grid bars are arranged at the fourth air outlet in parallel and used for guiding air flow to flow out of the shell based on a second direction;

And an included angle alpha of the included angle between the first direction and the second direction is more than or equal to 30 degrees, and the included angle alpha is less than or equal to 45 degrees.

Based on the technical scheme, through setting up first grid and second grid in order to guide air inlet and air-out direction respectively to make the contained angle of two wind directions be the acute angle, thereby avoid the air current of output to flow back immediately in order to reduce the work efficiency of air conditioner on the basis of guaranteeing the ventilation volume.

In another aspect, there is also provided an indoor unit of an air conditioner, including:

the fan is arranged in the shell;

the first air guide module is used for guiding the first air outlet to output refrigeration air flow in the horizontal direction deviating from the shell;

the second air guide module is used for guiding the second air outlet to output a heating air flow to the lower part of the shell;

When the heating air flow is output, the first air valve is closed, the second air valve is opened, and the second air outlet outputs the heating air flow to the lower part of the shell through the second air guide module; when the refrigerating air flow is output, the second air valve is closed, the first air outlet is opened, and the refrigerating air flow is output to the horizontal direction deviating from the shell through the first air guide module.

Based on the technical scheme, the first air guide module is used for guiding the refrigerating air flow to be output in the horizontal direction, and the second air guide module is used for guiding the refrigerating air flow to be output below the shell, so that the refrigerating or heating air flow output by the air outlets at different positions can cover the whole room, and the comfort of a human body is improved.

Drawings

Fig. 1 illustrates a first perspective view of an air conditioning indoor unit according to some embodiments;

FIG. 2 illustrates a front view of FIG. 1 in an air conditioning indoor unit according to some embodiments;

FIG. 3 illustrates a rear view of FIG. 1 in an air conditioning indoor unit according to some embodiments;

FIG. 4 illustrates a bottom view of FIG. 1 in an air conditioning indoor unit according to some embodiments;

Fig. 5 illustrates a second perspective view of an air conditioning indoor unit according to some embodiments;

FIG. 6 illustrates a front view of FIG. 5 in an air conditioning indoor unit according to some embodiments;

FIG. 7 illustrates a top view of FIG. 5 in an air conditioning indoor unit according to some embodiments;

Fig. 8 illustrates a third perspective view of an air conditioning indoor unit according to some embodiments;

fig. 9 illustrates a front view of fig. 8 in an air conditioning indoor unit according to some embodiments;

FIG. 10 illustrates a top view of FIG. 8 in an air conditioning indoor unit according to some embodiments;

fig. 11 illustrates a fourth perspective view of an air conditioning indoor unit according to some embodiments;

Fig. 12 illustrates a fifth perspective view of an air conditioning indoor unit according to some embodiments.

In the figures, 100 parts of the shell, 101 parts of the first air outlet, 102 parts of the second air outlet, 103 parts of the third air outlet, 104 parts of the fourth air outlet, 105 parts of the fifth air outlet, 106 parts of the return air inlet, 200 parts of the fan, 300 parts of the indoor heat exchanger, 400 parts of the first air valve, 500 parts of the second air valve, 600 parts of the first air guide pipe and 700 parts of the second air guide pipe.

Detailed Description

For the purposes of making the objects and embodiments of the present application more apparent, an exemplary embodiment of the present application will be described in detail below with reference to the accompanying drawings in which exemplary embodiments of the present application are illustrated, it being apparent that the exemplary embodiments described are only some, but not all, of the embodiments of the present application.

In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, "a plurality of" means two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication with each other between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The air conditioner of the present application performs a refrigerating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses refrigerant gas in a low-temperature and low-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.

An outdoor unit of an air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, an indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.

The utility model provides an air conditioner indoor unit, relates to the technical field of air conditioners, and is described below with reference to figures 1-12.

Referring to fig. 1 to 12, an indoor unit of an air conditioner includes a casing 100, wherein the casing 100 is hollow and is used as a main structure of the indoor unit of the air conditioner, which not only plays a role in protection, but also realizes reasonable guiding of air flow by opening an air return opening 106 and an air outlet, and the air return opening 106 and the air outlet are distributed along the circumferential direction of the casing 100.

Referring to fig. 3, an air return opening 106 is formed in the casing 100, and the air return opening 106 is used for receiving indoor air to be sucked as a starting point of air circulation.

The arrangement of the return air inlet 106 can avoid multiple holes on the ceiling, and the decoration is attractive.

Referring to fig. 5, 7, 8, and 10, an indoor unit of an air conditioner includes a fan 200. At least one fan 200 is disposed in the housing 100, and the fan 200 is disposed near the air return opening 106 to guide the air flow into the housing 100.

Referring to fig. 5, 7, 8, and 10, an indoor unit of an air conditioner includes an indoor heat exchanger 300. An indoor heat exchanger 300 is further provided in the casing 100, and the indoor heat exchanger 300 is located at the air outlet side of the fan 200.

The side of the indoor heat exchanger 300 facing the fan 200 is a windward side, and the side facing away from the fan 200 is a leeward side.

The indoor heat exchanger 300 is a temperature control part that realizes temperature adjustment of an air flow, and transfers a cooling or heating effect to air through heat exchange, thereby exchanging heat with the air flow passing therethrough.

After the air flow entering the casing 100 from the return air inlet 106 is boosted by the fan 200, the air flow is blown from the air outlet side of the fan 200 to the indoor heat exchanger 300, and the indoor heat exchanger 300 absorbs heat to reduce the temperature of the air flow to form a refrigerating air flow.

Or after the air flow entering the casing 100 from the return air inlet 106 is boosted by the fan 200, the air flow is blown to the indoor heat exchanger 300 from the air outlet side of the fan 200, and the indoor heat exchanger 300 forms a heated air flow by radiating heat to raise the temperature of the air flow.

Referring to fig. 5, 6, 8 and 9, the air outlet formed in the casing 100 includes a first air outlet 101 and a second air outlet 102.

Referring to fig. 8 and 9, in some embodiments of the present application, the second air outlet 102 and the first air outlet 101 are disposed on the same side wall of the casing 100, where the same side wall is opposite to the leeward side of the indoor heat exchanger of the casing 100.

The air flow processed by the indoor heat exchanger is directly output through the first air outlet 101 and the second air outlet 102, so that the air quantity loss is reduced, and the air flow circulation is facilitated.

In other embodiments of the present application, the first air outlet 101 and the second air outlet 102 are respectively disposed on two adjacent side walls of the casing 100, and the first air outlet 101 or the second air outlet 102 is disposed on a side wall of the casing 100 opposite to the leeward side of the indoor heat exchanger.

If the first air outlet 101 is disposed on a side wall of the casing 100 opposite to the leeward side of the indoor heat exchanger, that is, the first air outlet 101 is disposed on the front end surface of the casing 100, the second air outlet 102 is disposed on any side wall of the left and right sides of the front end surface.

If the second air outlet 102 is disposed on a side wall of the casing 100 opposite to the leeward side of the indoor heat exchanger, that is, the second air outlet 102 is disposed on the front end surface of the casing 100, the first air outlet 101 is disposed on any side wall of the left and right sides of the front end surface.

The first air outlet 101 is generally directed to a side far from a wall of the room or toward a center of the room, and the cooling air flow outputted through the first air outlet 101 sinks at a position at or near the center of the room. For ensuring that the refrigerating effect of the refrigerating air flow outputted from the first air outlet 101 is uniformly distributed in the room.

The second air outlet 102 is generally directed to a side far from a wall of the room or toward a center of the room, and the flow of heated air outputted through the second air outlet 102 rises at or near the center of the room. For ensuring that the heating effect of the heating air flow output by the second air outlet 102 is uniformly distributed in the room.

Referring to fig. 8, in some embodiments of the present application, the air outlet further includes a third air outlet 103, where the third air outlet 103 and the second air outlet 102 are opposite to each other and open at two adjacent side walls of the casing 100.

The third air outlet 103 and the second air outlet 102 are close to each other and communicate with each other to output the flow of heating air at the same time.

If the second air outlet 102 is disposed on a side wall of the casing 100 opposite to the leeward side of the indoor heat exchanger, that is, the second air outlet 102 is disposed on the front end surface of the casing 100.

The third air outlet 103 is disposed on any side wall of the front end face, which is far from the first air outlet 101 and near the second air outlet 102.

The third air outlet 103 is communicated with the second air outlet 102 and is used for outputting the heating air flow simultaneously so as to increase the air output of the heating air flow and increase the heating efficiency.

Referring to fig. 4, 8 and 10, in some embodiments of the present application, the air outlet further includes a fourth air outlet 104, and the fourth air outlet 104 is opened at a bottom end surface of the casing 100.

The fourth air outlet 104 and the second air outlet 102 are close to each other and communicate with each other to output the flow of heating air at the same time.

The fourth air outlet 104 is communicated with the second air outlet 102, and is used for outputting the heating air flow simultaneously, so as to increase the air output of the heating air flow and increase the heating efficiency.

In addition, since the fourth air outlet 104 is formed in the bottom end surface of the casing 100, the heating air flow can be directly outputted to the lower side of the casing 100, so that the heating air flow rises from bottom to top to uniformly heat.

Referring to fig. 8, in some embodiments of the present application, the air outlet further includes a fifth air outlet 105, and the fifth air outlet 105 and the first air outlet 101 are opposite to each other and open at two adjacent side walls of the casing 100.

The fifth air outlet 105 is adjacent to and communicates with the first air outlet 101 to output the cooling air flow at the same time.

If the first air outlet 101 is disposed on a side wall of the casing 100 opposite to the leeward side of the indoor heat exchanger, that is, the first air outlet 101 is disposed on the front end surface of the casing 100.

The fifth air outlet 105 is disposed on any side wall of the front end face, which is far from the second air outlet 102 and near the first air outlet 101.

The fifth air outlet 105 is communicated with the first air outlet 101 and is used for outputting the refrigerating air flow at the same time so as to increase the air output of the refrigerating air flow and increase the refrigerating efficiency.

Referring to fig. 1 to 7, an indoor unit of an air conditioner includes two first air guide pipes 600, and the two first air guide pipes 600 are respectively disposed at positions of a first air outlet 101 and a fifth air outlet 105 on a casing 100.

One end of each of the two first air guide pipes 600 is respectively communicated with the first air outlet 101 and the fifth air outlet 105, and the other end extends in a horizontal direction away from the housing 100.

The first air guide duct 600 is used for guiding the first air outlet 101 and the fifth air outlet 105 to output the cooling air flow in the horizontal direction.

The extending directions of the two first air guide pipes 600 are different based on the different orientations of the first air outlet 101 and the fifth air outlet 105.

If the first air outlet 101 is disposed on a side wall of the housing 100 opposite to the leeward side of the indoor heat exchanger, that is, the first air outlet 101 is disposed on the front end surface of the housing 100.

The first air guide pipe 600 connected to the first air outlet 101 extends horizontally to a first preset position in a front direction away from the housing 100, so that the first air outlet 101 outputs air at the first preset position.

The fifth air outlet 105 is disposed on any side wall of the front end surface, which is far from the second air outlet 102 and near the first air outlet 101.

The fifth air outlet 105 faces the side surface of the housing 100 opposite to the first air outlet 101, and the first air guide pipe 600 connected to the fifth air outlet 105 extends horizontally in a direction away from the side surface of the housing 100, and then bends to extend horizontally in a direction away from the front end surface of the housing 100 to a second preset position, so that the fifth air outlet 105 outputs air at the second preset position.

It should be noted that, the installation environment of the indoor unit of the air conditioner is not always the most suitable output position between the first air outlet 101 and the fifth air outlet 105. In a relatively large room installation environment, the air conditioner indoor unit is always located close to the wall body in order to be matched with the installation of the air conditioner outdoor unit.

At this time, the position of the output cool air of the first air outlet 101 is close to one end of the room and far away from the other end, so that the cooling effect on the end of the room far away from the first air outlet 101 is poor, and the technical effect of uniform cooling cannot be achieved.

Therefore, the first air guide pipe 600 extends the positions of the output cold air of the first air outlet 101 and the fifth air outlet 105 to the first preset position and the second preset position, respectively, so as to solve the technical problem of uneven refrigeration. The first preset position and the second preset position can be set as intermediate positions of the room according to actual conditions.

The output cool air positions of the first air outlet 101 and the fifth air outlet 105 are extended to the middle position of the room through the first air guide pipe 600, so that the distances between the air outlet positions and the two ends of the room are equal, and the output cool air is uniformly sunk to cool.

Referring to fig. 1 to 7, an indoor unit of an air conditioner includes two second air guide pipes 700, and the two second air guide pipes 700 are respectively disposed at the positions of the second air outlet 102 and the third air outlet 103 on the casing 100.

One end of the two second air guide pipes 700 is communicated with the second air outlet 102 and the third air outlet 103, and the other end extends towards the lower side of the housing 100 through bending.

The second air guide pipe 700 is used for guiding the second air outlet 102 and the third air outlet 103 to output the heating air flow to the lower side of the outer casing 100.

The extending directions of the two second air guide pipes 700 are different based on the different orientations of the second air outlet 102 and the third air outlet 103.

If the second air outlet 102 is disposed on a side wall of the housing 100 opposite to the leeward side of the indoor heat exchanger, that is, the second air outlet 102 is disposed on the front end surface of the housing 100.

The second air guide pipe 700 connected to the second air outlet 102 extends horizontally in a direction away from the front end surface of the housing 100, and then extends to a third preset position below the housing 100, so that the second air outlet 102 outputs air to the lower side of the housing 100 at the third preset position.

The third air outlet 103 is disposed on any side wall of the front end surface, which is far from the first air outlet 101 and near the second air outlet 102.

The third air outlet 103 faces the side face of the housing 100 opposite to the second air outlet 102, and the second air guide pipe 700 connected to the third air outlet 103 extends horizontally in a direction away from the side face of the housing 100 and then extends to a fourth preset position below the housing 100, so that the third air outlet 103 discharges air to the lower side of the housing 100 at the fourth preset position.

Further, since the fourth air outlet 104 is directed downward of the casing 100, the fourth air outlet 104 can be used to directly output the flow of heating air downward of the casing 100.

The fourth air outlet 104 directly outputs the heating air flow to the lower part of the shell 100, and the second air guide pipe 700 is not needed to be additionally arranged, so that the manufacturing cost is saved.

Based on the second air outlet 102, the third air outlet 103 and the fourth air outlet 104, the heating air flow is output to the lower part of the shell 100 together, so that the heating efficiency is increased.

In some embodiments of the present application, the return air inlet 106 is formed in a side wall of the casing 100 opposite to the windward side of the indoor heat exchanger 300.

Based on the side walls of the casing 100 opposite to the leeward side of the indoor heat exchanger 300 where the first air outlet 101 and the second air outlet 102 are disposed, the air return opening 106 is disposed opposite to the first air outlet 101 and the second air outlet 102, so that an effective air circulation path can be formed.

The air return opening 106 is responsible for absorbing indoor polluted air, the air outlet is responsible for sending the treated fresh air back to the indoor, and the layout helps to ensure effective circulation and circulation of indoor air and improve the refrigerating or heating effect of the indoor air conditioner.

In some embodiments of the present application, a screen is provided at the return air inlet 106.

Based on the fixed arrangement of the air return opening 106 and the cooperation with the first air outlet 101, the second air outlet 102, the third air outlet 103 and the third air outlet 103. The air flow direction of the air return opening 106 is fixed, no reverse air flow exists, and the problem that hair and dust accumulated on a filter screen at the air return opening 106 are blown out can be avoided.

In some embodiments of the present application, the first air duct communicates with the return air inlet 106, the first air outlet 101, and the fifth air outlet 105.

The first air duct is used for ensuring that air flow entering the casing 100 through the air return opening 106 can be smoothly conveyed to the first air outlet 101 and the fifth air outlet 105 after being subjected to refrigeration treatment, so that refrigeration air flow is output through the first air outlet 101 and the fifth air outlet 105.

The second air duct is communicated with the air return opening 106, the second air outlet 102, the third air outlet 103 and the fourth air outlet 104.

The second air duct is used for ensuring that air flow entering the casing 100 through the air return opening 106 can be smoothly conveyed to the second air outlet 102, the third air outlet 103 and the fourth air outlet 104 after being subjected to heating treatment. So that the flow of heating air is outputted through the second air outlet 102, the third air outlet 103 and the fourth air outlet 104.

Referring to fig. 5, 7, 8 and 10, an indoor unit of an air conditioner includes a fan 200, at least one fan 200 is disposed in a housing 100, and the fan 200 is used for supplying air to a first air duct and a second air duct. The air flow entering the interior of the casing 100 through the air return opening 106 flows to the first air outlet 101, the second air outlet 102, the third air outlet 103, the fourth air outlet 104 and the fifth air outlet 105.

It should be noted that, considering the cooperation between the air return opening 106 and the plurality of air outlets, when there is a high requirement for the air output of the air outlets, one fan 200 is difficult to satisfy the air supply requirement, and therefore the number of fans 200 should be set according to the actual situation.

Referring to fig. 5, 7, 8 and 10, in some embodiments of the present application, the number of fans 200 may be three to increase the air volume to each air outlet, thereby improving the air supply efficiency.

In some embodiments of the application, fan 200 is a cross-flow fan 200 or a centrifugal fan 200.

The cross flow fan 200 has the advantages of low noise and high air volume, and the cross flow fan 200 is generally suitable for occasions requiring silence and high air volume requirements.

The cross flow fan 200 can generate more uniform air flow, so that the temperature of each indoor area is more uniform, and the comfort level is improved.

The design of cross-flow fan 200 is designed to reduce noise, and multiple cross-flow fans 200 can be operated at the same time to maintain a low noise level, thus providing a quiet environment for the user.

Centrifugal fan 200 has a strong airflow pushing capability and stability, and centrifugal fan 200 is generally suitable for applications requiring rapid and efficient air delivery.

The centrifugal fan 200 can rapidly deliver the treated air to each corner of the room, ensuring rapid adjustment of the indoor temperature and humidity.

The centrifugal fan 200 can maintain the stability of the air flow during operation, and avoid the influence of the air conditioning effect due to the air flow fluctuation.

It should be noted that, based on the arrangement of a plurality of fans 200, the cross-flow fan 200 and the centrifugal fan 200 may be mixed and arranged in the housing 100, so as to flexibly adjust the working states of the cross-flow fan 200 and the centrifugal fan 200 according to the indoor environment and the user requirement, thereby realizing customized air supply.

The power of the centrifugal fan 200 can be increased when rapid cooling or heating is required, and the cross-flow fan 200 can be relied on more when the indoor silence is required.

Referring to fig. 5 to 10, an indoor unit of an air conditioner includes a first air valve 400, the first air valve 400 being disposed in a first air duct and between an indoor heat exchanger 300 and first and fifth air outlets 101 and 105.

The first air valve 400 is used to simultaneously connect or close the first air outlet 101 and the fifth air outlet 105 to the leeward side of the indoor heat exchanger 300, so as to adjust the airflow direction according to the working mode of the indoor heat exchanger 300.

If the first air outlet 101 is provided on a side wall of the casing 100 opposite to the leeward side of the indoor heat exchanger, that is, the first air outlet 101 is provided on the front end surface of the casing 100.

The first air outlet 101 faces the front end face of the housing 100, and the first air outlet 101 is fixed for horizontally outputting a refrigerant air flow in a front direction away from the housing 100.

The fifth air outlet 105 faces the side of the housing 100, and the fifth air outlet 105 is fixed to horizontally output the refrigerant air flow in a side direction away from the housing 100.

The first damper 400 is thus set to be opened in the cooling mode of the indoor heat exchanger 300 by the independent first damper 400 controller to output the cooling air flow through the first air outlet 101 and the fifth air outlet 105.

In contrast, when the indoor heat exchanger 300 is in the heating mode, the first damper 400 is closed at this time. To avoid outputting the heating air flow through the first air outlet 101 and the fifth air outlet 105, thereby avoiding too much heating air flow gathered at the top of the room, resulting in too high local air temperature and poor user experience.

Referring to fig. 5, 7, 8 and 10, an indoor unit of an air conditioner includes a second air valve 500, where the second air valve 500 is disposed in the second air duct and between the indoor heat exchanger 300 and the second air outlet 102, the third air outlet 103 and the fourth air outlet 104.

The second air valve 500 is used for simultaneously communicating or closing the second air outlet 102, the third air outlet 103 and the fourth air outlet 104 with the leeward side of the indoor heat exchanger 300, so as to adjust the airflow direction in accordance with the working mode of the indoor heat exchanger 300.

If the second air outlet 102 is provided on a side wall of the casing 100 opposite to the leeward side of the indoor heat exchanger, that is, the second air outlet 102 is provided on the front end surface of the casing 100.

The second air outlet 102 faces the front end face of the casing 100, and the second air outlet 102 is fixed by matching with the second air guide pipe 700 and is used for outputting the heating air flow to the lower side of the casing 100.

The third air outlet 103 faces the side surface of the casing 100, and the third air outlet 103 is fixed by matching with the second air guide pipe 700 and is used for outputting the heating air flow to the lower side of the casing 100.

The fourth air outlet 104 faces the lower side of the casing 100, and the fourth air outlet 104 is fixed to output the flow of heating air to the lower side of the casing 100.

The second air valve 500 is thus set to be opened in the heating mode of the indoor heat exchanger 300 by the independent second air valve 500 controller to output the flow of heating air through the second air outlet 102, the third air outlet 103, and the fourth air outlet 104.

Conversely, when the indoor heat exchanger 300 is in the cooling mode, the second damper 500 is closed at this time. In order to avoid outputting the refrigerating air flow through the second air outlet 102, the third air outlet 103 and the fourth air outlet 104, thereby avoiding too much refrigerating air flow gathered at the bottom of the room, resulting in too low local air temperature and poor user experience.

In some embodiments of the present application, the first air outlet 101, the fifth air outlet 105 are integrally provided with the first damper 400 to facilitate installation.

The second air outlet 102, the third air outlet 103 and the fourth air outlet 104 are integrally provided with the second air valve 500, so as to facilitate installation.

Referring to fig. 10 to 12, the first and second dampers 400 and 500 may have a circular, rectangular, etc. shape depending on the actual situation.

In some embodiments of the application, the size and the area of the air outlet of any air outlet or any air valve are designed according to the air quantity, so that the average air speed Z1 of the passing air flow is equal to or more than 1.0m/s, and the average air speed Z1 is equal to or less than 4.0m/s.

The average wind speed of the air flow at any air outlet or the air outlet of any air valve is limited, so that the air flow can be uniformly distributed to each indoor area, and the situation that the air flow is too strong or too weak in a local area is avoided. So as to improve the comfort of the indoor environment and reduce the uncomfortable feeling caused by uneven air flow distribution.

In other embodiments of the present application, the size and area of the air outlet of any air outlet or any air valve are designed according to the air volume, so that the average air speed Z2 of the passing air flow is equal to or greater than 1.5m/s, and the average air speed Z2 is equal to or greater than 2.5m/s.

By limiting the average wind speed of the air flow at any air outlet or the air outlet of any air valve, the noise generated during the operation of the air conditioning system is effectively reduced, and a quieter and more comfortable environment is provided for indoor personnel.

Too low wind speed may cause insufficient heat exchange, while too high wind speed may increase energy loss and noise, and after limiting the wind speed, the performance of the heat exchanger may be optimized, and the energy utilization efficiency may be improved.

When the indoor unit is used for cooling operation, air flows into the casing 100 through the air return port 106. The air flow entering the casing 100 is guided by the fan 200 to pass through the indoor heat exchanger 300 for heat exchange, and the air flow cooled by the indoor heat exchanger 300 enters the first air duct and the second air duct.

At this time, the first air valve 400 and the second air valve 500 are operated by switching the indoor heat exchanger 300. Wherein the first damper 400 is opened and the second damper 500 is closed.

The cooled air flow enters the first air duct and the second air duct, but only the cooling air flow can be output from the first air outlet 101 and the fifth air outlet 105 to the horizontal direction away from the housing 100 through the first air duct. The refrigerating airflow gradually sinks from top to bottom in the room to cool down, so as to achieve the technical effect of uniform refrigeration.

When the indoor unit is used for heating, air flows into the casing 100 through the return air inlet 106. The air flow entering the casing 100 is guided by the fan 200 to pass through the indoor heat exchanger 300 for heat exchange, and the air flow warmed by the indoor heat exchanger 300 enters the first air duct and the second air duct.

At this time, the first air valve 400 and the second air valve 500 are operated by switching the indoor heat exchanger 300 to heat. Wherein the first damper 400 is closed and the second damper 500 is opened.

The heated air flow enters the first air duct and the second air duct, but the heated air flow can only be output from the second air outlet 102, the third air outlet 103 and the fourth air outlet 104 to the lower side of the casing 100 through the second air duct. The heating air flow gradually rises in the room from bottom to top to heat the air, so as to achieve the technical effect of uniform heating.

In some embodiments of the present application, the ratio X1 of the air outlet area of the first air outlet 101, the second air outlet 102, the third air outlet 103, the fourth air outlet 104 and the fifth air outlet 105 to the working area of the indoor heat exchanger 300 is satisfied that X1 is greater than or equal to 0.3 and X1 is less than or equal to 0.8.

The air outlet areas of the first air outlet 101, the second air outlet 102, the third air outlet 103, the fourth air outlet 104 and the fifth air outlet 105 are substantially the product of the length dimension and the width dimension of each air outlet.

The working area of the indoor heat exchanger 300 is essentially the surface area between which heat is transferred between the indoor heat exchanger 300 and the air stream as the air stream passes through the indoor heat exchanger 300.

The ratio of the two values is limited to ensure that the size of the air outlet is matched with the heat exchange capacity of the indoor heat exchanger 300. The air passing through the indoor heat exchanger 300 can sufficiently absorb or release heat and then be discharged after reaching a desired temperature, thereby improving heat exchange efficiency.

And/or the ratio Y1 of the size area of the air port of the first air valve 400 and the second air valve 500 to the working area of the heat exchanger, wherein the ratio Y1 is more than or equal to 0.3, and Y1 is less than or equal to 0.8.

The size and area of the tuyere of the first and second dampers 400 and 500 are substantially the product of the length and width dimensions of the tuyere controlled by the respective dampers.

By limiting the ratio of the two values, the failure rate caused by unsmooth air flow or insufficient heat exchange is reduced. Any air valve can flexibly adjust the air supply quantity and the temperature according to actual demands, and the response speed and the adaptability are improved.

In yet other embodiments of the present application,

The position of the return air inlet 106 is disposed on the bottom end surface of the casing 100, and a preset distance is disposed between the return air inlet 106 and the fourth air outlet 104.

The return air inlet 106 is provided at the bottom end of the casing 100 to provide more various options for the installation of the indoor air conditioner. Avoiding that the back end surface of the chamber housing 100 is used for installation, the air return port 106 arranged on the back end surface of the housing 100 is required to be used for air return, so that the air quantity of the air return is too small.

The air return port 106 and the fourth air outlet 104 are both opened at the bottom end of the casing 100, and there is a case that the air return port 106 returns air and the fourth air outlet 104 discharges air to cause a short circuit. That is, the heating air flow of the fourth air outlet 104 is not used for heating at the indoor preset position, and is immediately sent back to the casing 100 by the air return opening 106 for reprocessing, so that the heating efficiency is reduced.

By arranging the preset interval between the return air inlet 106 and the fourth air outlet 104, the return air passage of the return air inlet 106 is separated from the air outlet passage of the fourth air outlet 104 by a certain interval, so that the mutual influence is avoided, and the problem of low heating efficiency is solved.

Through locating the position of return air inlet 106 in the bottom of shell 100, and set up the interval of predetermineeing between return air inlet 106 and the fourth air outlet 104, improved the installation flexibility of air conditioning indoor set to still guaranteed the technological effect of heating efficiency.

In some embodiments of the present application, a plurality of first grills are arranged at the return air opening 106 for guiding the air flow back into the housing 100 based on a first direction.

The first grills are arranged at the return air opening 106 to form a first air guiding grille, and the first air guiding grille is used for guiding the air flow entering the casing 100 from the return air opening 106 to flow back based on a first direction. I.e. the flow direction of the return air flow is controlled and guided.

The second bars are arranged at the fourth air outlet 104 for guiding the air flow to flow out of the housing 100 based on the second direction.

The second grills are arranged at the air return opening 106 to form a second air guiding grille, and the second air guiding grille is used for guiding the air flow output from the fourth air outlet 104 to flow out of the casing 100 based on the second direction. I.e. the flow direction of the output air flow is controlled and guided.

The included angle between the first direction and the second direction is an acute angle.

By staggering the flow direction of the return air flow from the flow direction of the output air flow, the short circuit between the air outlet and the return air is avoided.

In addition, the larger the included angle between the first direction and the second direction is, the smaller the air outlet quantity and the air return quantity are. The flow direction included angle of the two is limited to be an acute angle, so that the air return quantity and the air outlet quantity can meet the requirements.

In some embodiments of the application, the angle alpha between the first direction and the second direction is more than or equal to 30 degrees and less than or equal to 45 degrees.

The smaller the included angle between the first direction and the second direction, the easier the air outlet air path and the return air path are mutually influenced, thereby causing air outlet and return short circuit.

Therefore, on the basis that the air outlet quantity and the air return quantity can meet the requirements, the included angle value range between the first direction and the second direction is limited to be 30-45 degrees, and the technical effects of avoiding short circuit of the air outlet and the air return can be achieved.

In some embodiments of the present application, the first louvers provided at the return air inlet 106 are integrally provided with the second louvers provided at the fourth air outlet 104 to form a third air guiding louver. The third conductive grating is conveniently mounted directly at the bottom of the housing 100 when mounted.

Based on the wind guiding direction difference of first grid strip and second grid strip on the third wind-guiding grid, can avoid air-out and return air short circuit.

In other embodiments of the present application,

The ratio X2 of the air outlet area of the first air outlet 101, the second air outlet 102, the third air outlet 103, the fourth air outlet 104 and the fifth air outlet 105 to the working area of the heat exchanger is more than or equal to 0.4, and the ratio X2 is more than or equal to 0.6.

And/or the ratio Y2 of the size area of the air port of the first air valve 400 and the second air valve 500 to the effective working area of the heat exchanger, wherein the ratio Y2 is more than or equal to 0.4, and Y2 is less than or equal to 0.6.

In other embodiments of the present application,

An indoor unit of an air conditioner comprises a first air guide module and a second air guide module.

The first air guiding module is used for guiding the first air outlet 101 and the fifth air outlet 105 to output the refrigeration airflow in the horizontal direction.

Based on the first air outlet 101 being formed on the front end surface of the housing 100, the first air guiding module is communicated with the first air outlet 101 to guide the refrigerating air flow output by the first air outlet 101 to be horizontally output towards the front far from the housing 100. So that the refrigerating air flow gradually sinks from top to bottom to uniformly refrigerate.

Based on the fifth air outlet 105 being opened at the side end surface of the housing 100, the first air guiding module is connected to the fifth air outlet 105 to guide the fifth air outlet 105 to extend in a side direction away from the housing 100 and then extend in a front direction away from the housing 100. So that the output refrigerating air flow gradually sinks from top to bottom to uniformly refrigerate.

The second air guiding module is used for guiding the second air outlet 102 and the third air outlet 103 to output the heating air flow to the lower side of the housing 100.

Based on the second air outlet 102 being formed on the front end surface of the housing 100, the second air guiding module is connected to the second air outlet 102 to guide the second air outlet 102 to extend in a front direction away from the housing 100, and then bend and extend in a lower direction away from the housing 100. So that the heating air flow gradually rises from bottom to top to uniformly heat.

Based on the third air outlet 103 being opened at the side end surface of the housing 100, the second air guiding module is communicated with the third air outlet 103 to guide the third air outlet 103 to extend in a side direction far away from the housing 100, and then bend and extend in a lower direction far away from the housing 100. So that the output heating air flow gradually sinks from top to bottom to uniformly heat.

The cooled air flow enters the first air duct and the second air duct, but can only pass through the first air duct and be guided based on the first air guiding module, and the cooled air flow is output from the first air outlet 101 and the fifth air outlet 105 to the horizontal direction away from the housing 100. The refrigerating airflow gradually sinks from top to bottom in the room to cool down, so as to achieve the technical effect of uniform refrigeration.

The heated air flow enters the first air duct and the second air duct, but can be guided by the second air duct based on the second air guiding module, and the heated air flow is output from the second air outlet 102, the third air outlet 103 and the fourth air outlet 104 to the lower side of the casing 100. The heating air flow gradually rises in the room from bottom to top to heat the air, so as to achieve the technical effect of uniform heating.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. The illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An air conditioning indoor unit, comprising:

the fan is arranged in the shell;

2. The indoor unit of claim 1, wherein the air outlet further comprises a third air outlet, the third air outlet and the second air outlet are opposite and arranged on two adjacent side walls of the casing, and the third air outlet and the second air outlet are close to each other and communicated with each other so as to output the heating air flow simultaneously.

3. The indoor unit of any one of claims 1 or 2, wherein the air outlet further comprises a fourth air outlet, the fourth air outlet being provided at a bottom end surface of the casing, the fourth air outlet being in proximity to and in communication with the second air outlet for simultaneously outputting the flow of heating air.

4. The indoor unit of claim 3, wherein the air outlet further comprises a fifth air outlet, the fifth air outlet and the first air outlet are opposite and arranged on two adjacent side walls of the casing, and the fifth air outlet and the first air outlet are close to each other and communicated with each other so as to output the refrigerating air flow at the same time.

5. The indoor unit of claim 4, wherein the first air valve is located between the indoor heat exchanger and the first and fifth air outlets for simultaneously communicating or closing the first and fifth air outlets with the lee side of the indoor heat exchanger.

6. An air conditioner indoor unit according to claim 3, wherein the second air valve is located between the indoor heat exchanger and the second, third and fourth air outlets for simultaneously communicating or closing the second, third and fourth air outlets with the leeward side of the indoor heat exchanger.

7. An indoor unit for an air conditioner according to claim 1, wherein the return air inlet is provided in a side wall of the housing opposite to the windward side of the indoor heat exchanger.

8. An indoor unit of an air conditioner according to claim 3, wherein the return air inlet is provided at a bottom end surface of the casing, and a preset distance is provided between the return air inlet and the fourth air outlet.

9. The indoor unit of claim 5, further comprising:

The first grid bars are arranged at the air return openings and used for guiding air flow to flow back into the shell based on a first direction;

the second grid bars are arranged at the fourth air outlet and used for guiding air flow to flow out of the shell based on a second direction;

and an included angle alpha between the first direction and the second direction meets the conditions that alpha is more than or equal to 30 degrees and alpha is less than or equal to 45 degrees.

10. An air conditioning indoor unit, comprising:

the fan is arranged in the shell;