CN222335504U

CN222335504U - Indoor unit of vertical air conditioner

Info

Publication number: CN222335504U
Application number: CN202421157711.5U
Authority: CN
Inventors: 张家栋; 孙合庆
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2024-05-24
Filing date: 2024-05-24
Publication date: 2025-01-10
Anticipated expiration: 2034-05-24

Abstract

The utility model relates to a vertical air conditioner indoor unit, which belongs to the technical field of air conditioners and comprises a shell, a first air channel, a first fan, a second air channel and a second fan, wherein the first air channel is communicated with a first indoor air inlet and an indoor air outlet, the first fan is arranged in the first air channel and is communicated with the first indoor air inlet, the first air outlet is communicated with the indoor air outlet, an indoor heat exchanger is arranged in the shell and is close to a second indoor air inlet, the second air channel is communicated with the first air channel and the second air inlet is arranged in the shell, the second air inlet is communicated with the second indoor air inlet, the second air outlet is communicated with the first air channel, heat exchange air flow in the second air channel flows into the first air channel and is mixed with indoor air flow in the first air channel, and the mixed air flow is output through the indoor air outlet, so that the problem of uncomfortable air outlet temperature is effectively improved, the air cooling and heating capacity is not attenuated, and the comfort experience of users is greatly improved.

Description

Indoor unit of vertical air conditioner

Technical Field

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

Background

The air conditioner is an electrical product widely used in life of people, plays an important role in indoor temperature regulation, and can provide a healthy and comfortable indoor environment for users.

The indoor unit of the vertical air conditioner comprises a shell, an indoor heat exchanger and a fan, wherein an air inlet and an air outlet are formed in the shell, the indoor heat exchanger and the fan are arranged in the shell, the heat exchanger can exchange heat with air in the shell, and heat exchange airflow is output to the room from the air outlet.

The traditional vertical air conditioner indoor unit is low in air outlet temperature during refrigeration and high in air outlet temperature during heating, and the air outlet temperature is blown to a user to generate uncomfortable experience, so that air conditioning diseases can be generated for a long time. In order to solve the problem, some measures such as no wind sense and direct blowing prevention are adopted in the prior art, and some measures such as frequency limitation are adopted, so that although a certain effect is achieved, the problem that the refrigerating and heating capacity is reduced, the rapid reaching of the set temperature is not facilitated, or the fluctuation of the indoor temperature and the increase of the temperature gradient are caused is caused.

Disclosure of utility model

The present utility model solves at least one of the technical problems in the related art to a certain extent.

Therefore, the application aims to provide the vertical air conditioner indoor unit, wherein the indoor natural wind is introduced through the first air duct, the natural wind is mixed with the air conditioner heat exchange wind in the second air duct, the problem of uncomfortable air outlet temperature is effectively solved, the attenuation of refrigerating and heating capacity is not brought, and the comfortable experience of a user is greatly improved.

In order to achieve the above object, the present utility model provides a vertical air conditioner indoor unit, comprising:

The top end and the bottom end of the shell are two opposite ends in the length direction of the shell, and a first indoor air inlet, an indoor air outlet and a second indoor air inlet are formed in the shell;

The first air channel is arranged in the shell and is communicated with the first indoor air inlet and the indoor air outlet;

The first fan is arranged in the first air duct and is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the first indoor air inlet, and the first air outlet is communicated with the indoor air outlet;

the indoor heat exchanger is arranged in the shell and is close to the second indoor air inlet, and the indoor heat exchanger is used for exchanging heat of air passing through the indoor heat exchanger to form heat exchange air flow;

The second air channel is arranged in the shell and is arranged with the first air channel at intervals along the length direction of the shell, the second air channel is positioned at one side of the indoor heat exchanger away from the second indoor air inlet, and the second air channel is communicated with the first air channel and the second indoor air inlet;

The second fan is arranged in the shell, the second fan is provided with a second air outlet and a second air inlet, the second air inlet is communicated with the second indoor air inlet, the second air outlet is communicated with the first air channel, heat exchange air flow in the second air channel flows into the first air channel to be mixed with indoor air flow in the first air channel, and mixed air flow is output through the indoor air outlet.

In technical scheme, first wind channel introduces natural wind, and natural wind mixes with air conditioner heat transfer wind, can not reduce press frequency and reduce the air-out amount of wind, and air conditioner refrigeration heating ability can not decay, has effectively improved the uncomfortable problem of air-out temperature, and can not bring the decay of refrigeration heating ability, promotes user's comfortable experience by a wide margin.

In addition, the application also provides a vertical air conditioner indoor unit, which is characterized by comprising:

The shell is provided with a first indoor air inlet, an indoor air outlet and a second indoor air inlet from top to bottom, wherein the two ends of the shell are opposite in the length direction of the shell;

the indoor heat exchanger is arranged in the shell and is close to the first indoor air inlet, and the indoor heat exchanger is used for exchanging heat of air passing through the indoor heat exchanger to form heat exchange air flow;

The first air channel is arranged in the shell, is positioned at one side of the indoor heat exchanger away from the first indoor air inlet, and is communicated with the first indoor air inlet and the indoor air outlet;

the second air channel is arranged in the shell and is arranged with the first air channel at intervals along the length direction of the shell, and the second air channel is communicated with the first air channel and the second indoor air inlet;

In technical scheme, the second wind channel introduces indoor air, and indoor natural wind mixes with air conditioner heat transfer wind, can not reduce press frequency and reduce the air-out amount of wind, and air conditioner refrigeration heating ability can not decay, has effectively improved the uncomfortable problem of air-out temperature, and can not bring the decay of refrigeration heating ability, promotes user's comfortable experience by a wide margin.

In some embodiments of the present application, the air conditioner further includes an air mixing shell, the air mixing shell is disposed in the first air duct, the first fan is disposed in the air mixing shell, the air mixing shell has an air mixing air outlet, and the air mixing air outlet is communicated with the indoor air outlet.

In some embodiments of the present application, a connection port is formed on a side of the air mixing shell facing the second air duct, and the connection port is communicated with the second air outlet.

In some embodiments of the present application, the first fan includes a first casing, a first fan blade and a first driving member, where the first air outlet and the first air inlet are provided in the first casing, the first fan blade and the first driving member are provided in the first casing, and the first driving member drives the first fan blade to rotate.

In some embodiments of the present application, the first fan includes a second casing, a second fan blade and a second driving member, where the second air outlet and the second air inlet are provided in the second casing, the second fan blade and the second driving member are provided in the second casing, and the second driving member drives the second fan blade to rotate.

In some embodiments of the present application, the air intake system further includes a wind shielding portion, where the wind shielding portion is disposed on a side of the second fan close to the second indoor air intake, and the wind shielding portion is configured to prevent air flow from entering a side of the second fan away from the second indoor air intake.

In some embodiments of the present application, a mounting portion is disposed between the first air duct and the second air duct, the mounting portion is connected to the wind shielding portion and located at a side of the wind shielding portion facing the second air inlet, and the indoor heat exchanger is mounted on the mounting portion.

In some embodiments of the present application, an air outlet grille is disposed in the indoor air outlet, and an air guiding direction of the air outlet grille is the same as an opening direction of the indoor air outlet.

In some embodiments of the present application, a fresh air fan is further disposed in the second air duct, and a fresh air outlet is formed in the housing, and the fresh air fan is used for inputting outdoor fresh air into the room through the fresh air outlet.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

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

Fig. 2 is a front view of the overall structure of an indoor unit of a floor air conditioner according to an embodiment of the present application;

Fig. 3 is a schematic view showing a partial structure of a mixing case of an indoor unit of a stand air conditioner according to an embodiment of the present application;

Fig. 4 is a front view showing a partial structure of a second fan of an indoor unit of a floor air conditioner according to an embodiment of the present application;

FIG. 5 is a sectional view of the structure of the indoor unit of the floor air conditioner in the direction A-A of FIG. 4 according to an embodiment of the present application;

Fig. 6 is a schematic view showing a partial structure of an indoor heat exchanger of an indoor unit of a floor air conditioner according to an embodiment of the present application;

Fig. 7 is a partial structural side view of a hybrid case of an indoor unit of a stand air conditioner according to an embodiment of the present application;

Fig. 8 is a cross-sectional view showing the overall structure of an indoor unit of a stand air conditioner according to an embodiment of the present application;

fig. 9 is a partially cross-sectional side view of an overall structure of a floor air conditioner indoor unit according to an embodiment of the present application;

fig. 10 is a schematic view showing a partial structure of a first air duct of an indoor unit of a floor air conditioner according to an embodiment of the present application;

Fig. 11 is a schematic view showing a partial structure of a second air duct of the indoor unit of the floor air conditioner according to the embodiment of the present application.

In the above figures, 100, a shell, 101, a first indoor air inlet, 102, an indoor air outlet, 103, a second indoor air inlet, 200, a first air duct, 300, a first fan, 301, a first air inlet, 302, a first air outlet, 303, a first shell, 304, a first fan blade, 400, an indoor heat exchanger, 500, a second air duct, 600, a second fan, 601, a second air outlet, 602, a second air inlet, 603, a second shell, 604, a second fan blade, 700, a mixing fan shell, 701, a mixing air outlet, 702, a connection port, 800, a wind shielding part, 900, a mounting part, 110, an air outlet grille, 120, a fresh air fan, 130 and a fresh air outlet.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc. are directional or positional relationships based on the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other, directly connected, or indirectly connected through an intervening medium, in communication between two elements, or in an interaction relationship between two elements, unless explicitly specified otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediary. Moreover, a first feature "above", "above" and "upper" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply that the first feature level is higher than the second feature. The first feature being "under", "under" and "under" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is level less than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The present utility model will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the present application, the indoor unit of the floor air conditioner performs a refrigerating cycle of the indoor unit of the air conditioner by using a compressor, a condenser, an expansion valve and an indoor heat exchanger. 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 refrigerant gas in a high-temperature and high-pressure state. 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 indoor heat exchanger 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 indoor heat exchanger may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant.

The air conditioning indoor unit can adjust the temperature of the indoor space throughout the cycle. The outdoor unit of the air conditioner indoor unit refers to a portion of the refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner indoor unit 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 indoor heat exchanger. When the indoor heat exchanger is used as a condenser, the air-conditioning indoor unit is used as a heater for a heating mode, and when the indoor heat exchanger is used as an indoor heat exchanger, the air-conditioning indoor unit is used as a cooler for a cooling mode.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, in an exemplary embodiment of the indoor unit of a floor air conditioner according to the present utility model, the indoor unit of a floor air conditioner includes a housing 100, wherein the top end and the bottom end of the housing 100 are opposite to each other in the length direction of the housing 100, and a first indoor air inlet 101, an indoor air outlet 102 and a second indoor air inlet 102 are formed in the housing 100.

The vertical air conditioner indoor unit comprises a first air duct 200, wherein the first air duct 200 is arranged in the shell 100, and the first air duct 200 is communicated with the first indoor air inlet 101 and the indoor air outlet 102.

The vertical air conditioner indoor unit comprises a first fan 300, wherein the first fan 300 is arranged in a first air duct 200, the first fan 300 is provided with a first air inlet 301 and a first air outlet 302, the first air inlet 301 is communicated with a first indoor air inlet 101, and the first air outlet 302 is communicated with an indoor air outlet 102.

The indoor unit of the vertical air conditioner comprises an indoor heat exchanger 400, wherein the indoor heat exchanger 400 is arranged in the shell 100 and is close to the second indoor air inlet 102, and the indoor heat exchanger 400 is used for exchanging heat of air passing through the indoor heat exchanger 400 to form heat exchange air flow. The length direction of the indoor heat exchanger 400 is the same as the length direction of the case 100. The indoor heat exchanger 400 is detachably connected to the housing 100.

The vertical air conditioner indoor unit comprises a second air duct 500, wherein the second air duct 500 is arranged in the shell 100 and is arranged with the first air duct 200 along the length direction of the shell 100, the second air duct 500 is positioned at one side of the indoor heat exchanger 400 away from the second indoor air inlet 102, and the second air duct 500 is communicated with the first air duct 200 and the second indoor air inlet 102.

The vertical air conditioner indoor unit comprises a second fan 600, the second fan 600 is arranged in a second air duct 500, the second fan 600 is provided with a second air outlet 601 and a second air inlet 602, the second air inlet 602 is communicated with a second indoor air inlet 102, the second air outlet 601 is communicated with a first air duct 200, heat exchange air flow in the second air duct 500 flows into the first air duct 200 to be mixed with indoor air flow in the first air duct 200, and the mixed air flow is output through the indoor air outlet 102.

Indoor air entering from the first indoor air inlet 101 enters the first air duct 200 under the action of the first fan 300, indoor air entering from the second indoor air inlet 102 exchanges heat through the indoor heat exchanger 400 to form heat exchange airflow, the heat exchange airflow enters the first air duct 200 under the action of the second fan 600 and is mixed with indoor air in the first air duct 200, and the mixed air is output through the indoor air outlet 102.

In the prior art, through reducing the press frequency, and then improve air-out temperature during refrigeration, change air-out and ring temperature difference, improve the uncomfortable sense when supercooled wind blows on one's body, but this scheme is because having reduced the press frequency, has actually reduced the ability of air conditioner, is unfavorable for the quick temperature that reaches of environment.

The air-conditioning device has the advantages that the air-conditioning device can improve the air-out temperature during refrigeration by reducing the air-out air flow in modes of no air sense, direct blowing prevention, wind speed reduction and the like and passively mixing with the air flow in the original environment, the temperature difference between the air-out air and the ambient temperature is changed, the uncomfortable sense of the overcooled air when the overcooled air blows on a human body is improved, and the air-conditioning device can actually reduce the capacity of the air conditioner because the air-out air flow is reduced, so that the rapid temperature reaching of the environment is not facilitated.

Through above-mentioned technical scheme, first wind channel 200 introduces natural wind, and natural wind mixes with air conditioner heat transfer wind, can not reduce press frequency and reduce the air-out amount of wind, and air conditioner refrigeration heating ability can not decay, has effectively improved the uncomfortable problem of air-out temperature, and can not bring the decay of refrigeration heating ability, promotes user's comfortable experience by a wide margin, and the wind sense is even comfortable.

The first air duct 200 can be converged with the heat exchange air flow in the second air duct 500 without a long and narrow air mixing duct, so that the non-heat exchange air volume for mixing is larger, and the air mixing effect is better. When the air conditioner is used for refrigerating, the air outlet temperature of the second air duct 500 can be remarkably improved, the phenomenon that the air outlet temperature is low during refrigerating and the air is blown to a user to generate uncomfortable experience is avoided.

When the first fan 300 and the second fan 600 work simultaneously, the air outlet of the first fan 300 and the air outlet of the second fan 600 are mixed in the first air duct 200, that is, the first fan 300 and the second fan 600 share one air outlet for air outlet.

The second fan 600 supplies air towards the direction of the first fan 300 and enters the first air duct 200, the first air duct 200 can buffer the air outlet of the second fan 600 to a certain extent, and the air outlets of the first fan 300 and the second fan 600 are mixed at the first air duct 200 and then are sent outwards, so that the air outlet is comfortable in sense.

In some embodiments, the housing 100 is vertically disposed, the first indoor air inlet 101 and the second indoor air inlet 102 are disposed at a rear side of the housing 100, and the first indoor air inlet 101 is disposed at an upper side of the second indoor air inlet 102.

The air is heated or cooled by the indoor heat exchanger 400 after passing through the second indoor air inlet 102, then is conveyed into the first air duct 200 by the second fan 600, and is mixed with the indoor air in the first air duct 200, and the mixed air is discharged through the indoor air outlet 102 to change the indoor temperature.

As shown in fig. 6 to 8, in some embodiments, the indoor unit of the stand air conditioner may include a mixing air case 700, the mixing air case 700 is disposed in the casing 100, the first fan 300 is disposed in the mixing air case 700, the mixing air case 700 has a mixing air outlet 701, and the mixing air outlet 701 communicates with the indoor air outlet 102. The air mixing outlet 701 is formed on one side of the air mixing shell 700 facing the indoor air outlet 102, and the air mixing outlet 701 is close to the indoor air outlet 102, so that the air flow in the air mixing outlet 701 can quickly pass through the indoor air outlet 102.

In some embodiments, a connection port 702 is opened on a side of the air mixing shell 700 facing the second air duct 500, and the connection port 702 is communicated with the second air outlet 601. The connection port 702 is disposed opposite to the second air outlet 601.

As shown in fig. 9 to 10, in some embodiments, the first fan 300 includes a first housing 303, and a first air outlet 302 and a first air inlet 301 are formed in the housing of the first fan 300. The first air outlet 302 is arranged towards the indoor air outlet 102, and the first air inlet 301 is arranged towards the first indoor air inlet 101, so that the wind of the first indoor air inlet 101 can be driven better.

The first housing 303 is cylindrical, the first air outlet 302 is a circular opening, the first air inlet 301 is a circular opening, and the first air inlet 301 and the first air outlet 302 are coaxially arranged.

The first fan 300 includes a first fan blade 304, where the first fan blade 304 is disposed in the first housing 303.

The first fan 300 includes a first driving member, including but not limited to a motor and a motor, disposed in the first housing 303, and driving the first fan blade 304 to rotate.

In some embodiments, the air mixing shell 700 and the first shell 303 are integrally formed, so that the air mixing shell is easy to process, and the processing cost and the processing difficulty are reduced.

As shown in fig. 11, in some embodiments, the first air outlet 302 is disposed in the air mixing case 700, the first air inlet 301 is disposed outside the air mixing case 700, and indoor air outside the air mixing case 700 enters the air mixing case 700 through the first air inlet 301.

In some embodiments, the first air outlet 302 and the air mixing outlet 701 are spaced apart, and the distance between the first air outlet 302 and the air mixing outlet 701 facilitates mixing of the air flows in the first air duct 200 and the second air duct 500.

In some embodiments, the second fan 600 includes a second housing 603, and a second air outlet 601 and a second air inlet 602 are provided in the housing of the second fan 600. The second air outlet 601 is disposed towards the first air duct 200, and the second air inlet 602 is disposed towards the second indoor air inlet 102.

The air outlet direction of the second air outlet 601 and the air inlet direction of the second air inlet 602 form a certain included angle, so that the second fan 600 drives the air with the air inlet side far away from the first fan 300 and changes the flow direction, and then blows towards the first fan 300, therefore, the heat exchange air flow can be better driven and guided, and then is converged to the first air duct 200 for air mixing and then is sent out, the air outlet mixed flow effect is improved, and the air outlet is concentrated.

The second fan 600 includes a second fan blade 604, where the second fan blade 604 is disposed in the second housing 603.

The second fan 600 includes a second driving member, including but not limited to a motor and a motor, disposed in the second housing 603, and driving the second fan blade 604 to rotate.

When the first fan 300 does not rotate, the indoor air entering from the second indoor air inlet 102 exchanges heat through the indoor heat exchanger 400 to form heat exchange airflow, and the heat exchange airflow enters the first air duct 200 under the action of the second fan 600 and is output through the indoor air outlet 102.

In some embodiments, the first fan 300 is an axial flow fan and the second fan 600 is a centrifugal fan. The first fan 300 is disposed between the first indoor air inlet 101 and the indoor air outlet 102.

In some embodiments, the first fan 300 is disposed above the second fan 600, and the space layout in the housing 100 is reasonably compact, which improves the space utilization in the housing 100.

In some embodiments, the fan assembly further includes a wind shielding portion 800, where the wind shielding portion 800 is disposed on a side of the second fan 600 near the second indoor air intake 102, and the wind shielding portion 800 is configured to prevent airflow from entering a side of the second fan 600 far from the second indoor air intake 102. The wind shielding part 800 is a plate-shaped structure arranged vertically, and the wind shielding part 800 is connected to the second housing 603.

In some embodiments, a mounting portion 900 is disposed between the first air duct 200 and the second air duct 500, the mounting portion 900 is connected to the wind shielding portion 800 and located at a side of the wind shielding portion 800 facing the second air inlet 602, and the indoor heat exchanger 400 is mounted on the mounting portion 900.

The installation portion 900, the second casing 603, and an air chamber between the wind shielding portion 800 and the casing enclose a city, and indoor air enters the air chamber from the second indoor air inlet 102 to exchange heat, and heat exchange air flow can only enter the second casing 603 through the second air inlet 602, and enters the first air duct 200 from the second air outlet 601 under the action of the second fan 600.

In some embodiments, an air outlet grille 100 is disposed in the indoor air outlet 102, the air guiding direction of the air outlet grille 100 is the same as the opening direction of the indoor air outlet 102, and the air-conditioning air passing through the indoor air outlet 102 is guided by the air outlet grille 100, so that the user experience is improved.

In some embodiments, a fresh air fan 110 is further disposed in the second air duct 500, and a fresh air outlet 120 is formed on the housing 100, where the fresh air fan 110 is used for inputting outdoor fresh air into the room through the fresh air outlet 120.

In some embodiments, the first fan 300 is an axial flow fan, the second fan 600 is a centrifugal fan, and the air outlet of the second fan 600 flows to the air outlet side of the first fan 300 quickly, because the air outlet strength of the axial flow fan is high, the air outlet distance is long, the air outlet of the axial flow fan drives the air outlet of the centrifugal fan to mix in the first air duct 200 quickly, so when the two air directions are blown out from the indoor air outlet 102, the air outlet has the effect of long-distance air supply, and also has larger wide dispersion when the air is discharged, so that the air outlet air supply range at the edge of the indoor air outlet 102 is larger, and the air sense is comfortable.

When the first fan 300 is a different fan, multiple air-out modes can be formed, so as to meet multiple air-out requirements.

In some embodiments, the first fan 300 is a diagonal flow fan and the second fan 600 is a centrifugal fan. Similarly, the diagonal flow fan blows the air on the air inlet side to the first air duct 200 at a certain centrifugal speed and an axial speed, the centrifugal fan throws the air on the air inlet side corresponding to the diagonal flow fan into the air outlet side of the first fan 300, and the two air flows are overlapped, mixed and turbulent in the first air duct 200 to blow out to the indoor air outlet 102, so that the air outlet with a certain air supply distance can be formed, the air feeling is comfortable, and the air supply range is wide.

In addition, the application also provides a vertical air conditioner indoor unit, which comprises a shell 100, wherein the top end to the bottom end of the shell 100 are opposite to each other in the length direction of the shell 100, and a first indoor air inlet 101, an indoor air outlet 102 and a second indoor air inlet 102 are formed in the shell 100.

The indoor unit of the vertical air conditioner comprises an indoor heat exchanger 400, wherein the indoor heat exchanger 400 is arranged in the shell 100 and is close to the first indoor air inlet 101, and the indoor heat exchanger 400 is used for exchanging heat of air passing through the indoor heat exchanger 400 to form heat exchange air flow. The refrigerant flowing through the indoor heat exchanger exchanges heat with air to form a heating cycle or a cooling cycle.

The vertical air conditioner indoor unit comprises a first air duct 200, the first air duct 200 is arranged in the shell 100, the first air duct 200 is positioned on one side of the indoor heat exchanger 400 away from the first indoor air inlet 101, and the first air duct 200 is communicated with the first indoor air inlet 101 and the indoor air outlet 102.

The indoor heat exchanger 400 is arranged on the air inlet side of the first air duct 200, the indoor heat exchanger 400 forms a negative pressure cavity in the first air duct 200, and the negative pressure cavity enables external air to perform sufficient heat exchange when passing through the indoor heat exchanger 400, heat exchange is rapid, and the air inlet quantity is large.

After the air subjected to heat exchange by the indoor heat exchanger 400 enters the negative pressure cavity, the air is mixed in the first air duct 200 under the driving and flow guiding of the first fan 300 and the second fan 600, and finally the air is blown outwards from the indoor air outlet 102, so that the air feeling is comfortable.

The vertical air conditioner indoor unit comprises a second air duct 500, wherein the second air duct 500 is arranged in the shell 100 and is arranged with the first air duct 200 along the length direction of the shell 100 at intervals, and the second air duct 500 is communicated with the first air duct 200 and the second indoor air inlet 102.

The vertical air conditioner indoor unit comprises a second fan 600, the second fan 600 is arranged in the shell 100, the second fan 600 is provided with a second air outlet 601 and a second air inlet 602, the second air inlet 602 is communicated with the second indoor air inlet 102, the second air outlet 601 is communicated with the first air duct 200, heat exchange air flow in the second air duct 500 flows into the first air duct 200 to be mixed with indoor air flow in the first air duct 200, and the mixed air flow is output through the indoor air outlet 102.

The indoor air entering from the first indoor air inlet 101 exchanges heat through the indoor heat exchanger 400 to form heat exchange airflow, the heat exchange airflow enters the first air duct 200 under the action of the first fan 300, the indoor air entering from the second indoor air inlet 102 enters the first air duct 200 under the action of the second fan 600 and is mixed with the indoor air in the first air duct 200, and the mixed air is output through the indoor air outlet 102.

Through above-mentioned technical scheme, the second wind channel 500 introduces natural wind, and natural wind mixes with air conditioner heat transfer wind, can not reduce press frequency and reduce the air-out amount of wind, and air conditioner refrigerating and heating ability can not decay, has effectively improved the uncomfortable problem of air-out temperature, and can not bring the decay of refrigerating and heating ability, promotes user's comfortable experience by a wide margin.

In some embodiments, the first indoor air inlet 101 and the second indoor air inlet 102 are formed on the rear side of the housing 100, and the first indoor air inlet 101 is disposed on the upper side of the second indoor air inlet 102. The indoor air outlet 102 is provided at the front side of the housing 100.

The indoor air is conveyed into the first air duct 200 by the first fan 300 after being heated or cooled by the indoor heat exchanger 400 through the first indoor air inlet 101, is conveyed into the first air duct 200 by the second fan 600 through the second indoor air inlet 102, is mixed with the heat exchange air flow in the first air duct 200, and is discharged through the indoor air outlet 102 to change the indoor temperature.

In some embodiments, the indoor unit of the vertical air conditioner may include a mixing air casing 700, where the mixing air casing 700 is disposed in the casing 100, and the first fan 300 is disposed in the mixing air casing 700, and the mixing air casing 700 has a mixing air outlet 701, and the mixing air outlet 701 communicates with the indoor air outlet 102. The air mixing outlet 701 is formed on one side of the air mixing shell 700 away from the indoor heat exchanger 400, and the air mixing outlet 701 is close to the indoor air outlet 102, so that the air flow in the air mixing outlet 701 can quickly pass through the indoor air outlet 102.

In some embodiments, the front side of the housing 100 is a panel, the indoor air outlet 102 is disposed on the panel, and the mixed air formed by the air blown by the first fan 300 and the second fan 600 is mixed and then sent out from the indoor air outlet 102.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A vertical air conditioner indoor unit, comprising:

The second fan is arranged in the second air duct, the second fan is provided with a second air outlet and a second air inlet, the second air inlet is communicated with the second indoor air inlet, the second air outlet is communicated with the first air duct, heat exchange air flow in the second air duct flows into the first air duct to be mixed with indoor air flow in the first air duct, and mixed air flow is output through the indoor air outlet.

2. A vertical air conditioner indoor unit, comprising:

The shell is provided with a first indoor air inlet, a second indoor air inlet and an indoor air outlet from top to bottom, wherein the two ends of the shell are opposite in the length direction of the shell;

3. The indoor unit of claim 1 or 2, further comprising a mixing air shell, wherein the mixing air shell is arranged in the shell, the first fan is arranged in the mixing air shell, a mixing air outlet is formed in the mixing air shell, and the mixing air outlet is communicated with the indoor air outlet.

4. The indoor unit of claim 3, wherein a connection port is formed on a side of the air mixing shell facing the second air duct, and the connection port is communicated with the second air outlet.

5. The indoor unit of claim 1 or 2, wherein the first fan comprises a first casing, a first fan blade and a first driving member, the first fan blade and the first driving member are arranged in the first casing, the first air outlet and the first air inlet are arranged in the first casing, and the first driving member drives the first fan blade to rotate.

6. The indoor unit of claim 1 or 2, wherein the second fan comprises a second casing, a second fan blade and a second driving member, the second fan blade and the second driving member are arranged in the second casing, the second air outlet and the second air inlet are arranged in the second casing, and the second driving member drives the second fan blade to rotate.

7. The indoor unit of claim 1 or 2, further comprising a wind shielding portion disposed on a side of the second fan adjacent to the second indoor air intake, the wind shielding portion configured to prevent airflow from entering a side of the second fan away from the second indoor air intake.

8. The indoor unit of claim 7, wherein a mounting portion is disposed between the first air duct and the second air duct, the mounting portion is connected to the wind shielding portion and located on a side of the wind shielding portion facing the second air inlet, and the indoor heat exchanger is mounted on the mounting portion.

9. The indoor unit of claim 1 or 2, wherein an air outlet grille is disposed in the indoor air outlet, and an air guiding direction of the air outlet grille is the same as an opening direction of the indoor air outlet.

10. The indoor unit of claim 1 or 2, wherein a fresh air fan is further disposed in the second air duct, and a fresh air outlet is formed in the casing, and the fresh air fan is used for inputting outdoor fresh air into the room through the fresh air outlet.