CN116951564A - Air duct system and air conditioner - Google Patents

Abstract

The invention discloses an air duct system and an air conditioner. The air duct system includes: the upper air duct is provided with an upper air outlet; the lower air duct is provided with a plurality of lower air outlets which are sequentially arranged from top to bottom in a separated mode; the longitudinal air duct is communicated with the upper air duct and the lower air duct; the air supply system comprises an upper air supply mechanism and a lower air supply mechanism, wherein the upper air supply mechanism is used for supplying air to the upper air outlet and the longitudinal air duct, and the lower air supply mechanism is used for supplying air to at least one lower air outlet. The air duct system has different air supply modes, and a plurality of lower air outlets with different height positions are arranged at the same time, so that different lower air outlets can be selectively used for supplying air according to the height of an obstacle on a supporting surface, and the obstacle avoidance effect is achieved.

Description

Air duct system and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner with an air duct system.

Background

An Air Conditioner (Air Conditioner) is a device for quickly adjusting and controlling parameters such as the ambient temperature in a building or structure by using manual means.

In the existing air conditioner, only one air outlet is provided, the air outlet mode is single, and the requirements of people cannot be met.

Disclosure of Invention

To solve at least one of the problems of the prior art, according to one aspect of the present invention, there is provided an air duct system, comprising: the upper air duct is provided with an upper air outlet; the lower air duct is provided with a plurality of lower air outlets, and the plurality of lower air outlets are sequentially arranged in a separated mode from top to bottom; the longitudinal air duct is communicated with the upper air duct and the lower air duct; the air supply system comprises an upper air supply mechanism and a lower air supply mechanism, wherein the upper air supply mechanism is used for supplying air to the upper air outlet and the longitudinal air duct, and the lower air supply mechanism is used for supplying air to at least one lower air outlet.

Like this, through being equipped with vertical wind channel intercommunication wind channel and lower wind channel, thereby upward the wind flow of forced draught mechanism flow upward the wind channel can flow through vertical wind channel to the wind channel down, thereby the wind flow can be selective at least from a lower air outlet outflow, the wind flow that the forced draught mechanism provided down simultaneously can flow to lower air outlet, and the wind flow that the forced draught mechanism provided with upward the forced draught mechanism is the concurrent flow downwards air outlet, with the increase air flow size of lower air outlet, thereby can realize different air supply effect through opening or closing different air outlets or different air supply mechanism, a plurality of lower air outlets of different height positions are set up simultaneously, can be according to the height of the barrier on the holding surface, can selectively use different lower air outlets to supply air during the heating, in order to reach the effect of keeping away the barrier, make the wind flow can flow to the more distant position.

In some embodiments, the air conditioner further comprises an air inlet cavity, the upper air supply mechanism is arranged in the air inlet cavity, the lower air supply mechanism is arranged in the longitudinal air duct, and an air inlet of the lower air supply mechanism is formed in one side, facing the air inlet cavity, of the side wall of the longitudinal air duct.

Like this, through locating last air supply mechanism and lower air supply mechanism in different air inlet positions, can be convenient for control the air inlet, for example be arranged in the last air supply mechanism of air inlet chamber and can inhale the big amount of wind air flow, can control the intake size of the lower air supply mechanism that is arranged in vertical wind channel through the opening size of control air intake to control lower air supply mechanism inhales the wind flow of less amount of wind.

In some embodiments, the air duct system further comprises a first switch door for opening or closing the air inlet.

Therefore, when the lower air outlet does not need to send air, the air inlet can be closed through the first switch door, and air flow entering the air inlet cavity is sucked by the upper air supply mechanism and sent to the upper channel and sent out from the upper air supply opening.

In some embodiments, the air conditioner further comprises a second switch door, wherein the second switch door is used for closing the upper air outlet or closing the longitudinal air duct, so that when the upper air outlet is in a closed state, the air flow conveyed by the upper air supply mechanism flows to the longitudinal air duct; or when the longitudinal air duct is in a closed state, the air flow conveyed by the upper air supply mechanism flows to the upper air outlet.

In this way, by arranging the second switch door, the airflow direction of the upper air supply mechanism can be controlled, for example, when the air outlet of the lower air outlet is not required to be increased, or when the lower air outlet is not required to be exhausted, the longitudinal air duct can be closed through the second switch door, and at the moment, the airflow sucked through the upper air supply mechanism can only be sent out from the upper air outlet; for example, when the air outlet does not need air outlet, the upper air outlet can be closed through the second switch door, and at the moment, the air flow inhaled by the upper air supply mechanism can flow to the longitudinal air duct so as to be matched with the air flow inhaled by the lower air supply mechanism to flow out of the lower air outlet together, so that the air outlet quantity of the lower air outlet is increased.

In some embodiments, the lower duct includes a first section and a second section, the first section is provided with at least one lower air outlet, the second section is provided with at least one lower air outlet, the duct system further includes at least one third switch door, the third switch door is arranged between the first section and the second section, and is used for controlling the opening or closing of the lower air outlet of the first section or controlling the on-off between the first section and the second section.

Thus, the lower air duct is arranged into two sections, and each section can be provided with the lower air outlet so as to select different air outlets to carry out air outlet according to the height of the obstacle; through setting up the third switch door, can control the wind flow and only can follow the lower air outlet of first section and send out, perhaps control the wind flow and can follow the lower air outlet of first section and second section simultaneously and send out, perhaps control the wind flow and can follow the lower air outlet of second section and send out, realize different air-out modes.

In some embodiments, the air conditioner further comprises at least one fourth door, wherein the fourth door is arranged on the second section and is used for controlling the opening or closing of the lower air outlet of the second section.

Therefore, the fourth door closing control is used for closing some lower air outlets of the second section, so that different air outlet effects are realized.

In some embodiments, the air conditioner further comprises an auxiliary heating mechanism, wherein the auxiliary heating mechanism is arranged in the longitudinal air duct and is used for exchanging heat of the air flow conveyed by the upper air supply mechanism and enabling the air flow after heat exchange to be sent out from at least one lower air outlet.

Like this, in the initial stage that the air conditioner was opened, the wind flow after heat transfer mechanism can pass through the heat transfer of assisting hot mechanism again to flow out from lower air outlet, with the efficiency that promotes the heat transfer through assisting hot mechanism, can be quick provide the higher hot-blast flow of temperature to the user, and send out from lower air outlet, make the lower hot-blast flow of density raise the characteristic through self, in order to control the temperature to the environment.

According to another aspect of the present invention, there is provided an air conditioner including: the air duct system is arranged in the machine body.

Therefore, the air duct system is arranged in the machine body, so that the air conditioner has different air outlet modes, different requirements of users are met, and the air outlet mode of the air conditioner is developed in a diversified mode.

In some embodiments, the machine body is provided with an annular air outlet, and the annular air outlet is located below the upper air outlet and above each lower air outlet.

Thus, through annular air supply, the direct blowing sense of the user is reduced, and the comfort of the user is improved.

In some embodiments, the machine body includes a main body and a front baffle movably connected with the main body, a gap is formed between the front baffle and the main body, the gap is formed into the annular air outlet, and the front baffle can move relative to the main body to adjust the size of the annular air outlet.

Like this, through setting up the preceding baffle of activity, can adjust the size of annular air outlet to adjust the air output size of annular air outlet, the user can select according to own demand.

Drawings

FIG. 1 is a schematic diagram of an air duct system according to a first embodiment of the present invention;

fig. 2 is a perspective view of an air conditioner according to a second embodiment of the present invention; the method comprises the steps of carrying out a first treatment on the surface of the

FIG. 3 is a front view of the air conditioner of FIG. 2 in a practical state;

FIG. 4 is an exploded view of the air conditioner of FIG. 2;

FIG. 5 is a schematic cross-sectional view taken along the direction B-B in FIG. 3;

FIG. 6 is a front view of the air conditioner of FIG. 2 in another practical state;

FIG. 7 is a schematic cross-sectional view taken along the direction C-C in FIG. 6;

FIG. 8 is a usage state reference diagram of the air conditioner of FIG. 6;

fig. 9 is another usage state reference diagram of the air conditioner of fig. 6;

FIG. 10 is a schematic cross-sectional view taken along the line A-A in FIG. 3;

FIG. 11 is a usage state reference diagram of the air conditioner of FIG. 10;

fig. 12 is another usage state reference diagram of the air conditioner of fig. 10.

Wherein the reference numerals have the following meanings:

an air duct system 100;

an upper air duct 10 and an upper air outlet 11;

a lower duct 20, a lower air outlet 21, a first outlet 2101, a second outlet 2102, a first section 22, a second section 23, a third opening and closing door 24, and a fourth opening and closing door 25;

a longitudinal air duct 30 and an air inlet 31;

an air supply system 40, an upper air supply mechanism 41 and a lower air supply mechanism 42;

an air intake chamber 50;

a first opening and closing door 60;

a second opening and closing door 70;

an assist thermal mechanism 80;

a heat exchange mechanism 90;

an air conditioner 200;

the air conditioner comprises a machine body 210, a main body 211, a front baffle 212, an air inlet grille 2121, a rear shell 2122, a front shell 2124, a main air port 2125, an air inlet 2126, a lower air outlet structure 213, a connecting frame 2131, a supporting frame 2132, a communication channel 2133 and an annular air outlet 214;

the middle air duct structure 220, the upper opening 221, the first air outlet 222, the second air outlet 223;

an upper air outlet structure 230;

lower fan mounting structure 240, rear opening 241, side opening 242;

an upper mounting structure 250;

a pipe mounting structure 260;

and a fifth opening and closing door 270.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The invention is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, an air duct system 100 according to a first embodiment of the present invention includes an upper air duct 10, a lower air duct 20, a longitudinal air duct 30, and an air supply system 40.

Referring to fig. 1, an upper duct 10 has an upper air outlet 11; the lower air duct 20 is provided with a plurality of lower air outlets 21, and the plurality of lower air outlets 21 are sequentially arranged from top to bottom in a separated mode; the longitudinal air duct 30 is communicated with the upper air duct 10 and the lower air duct 20; the air supply system 40 includes an upper air supply mechanism 41 and a lower air supply mechanism 42, the upper air supply mechanism 41 is used for supplying air to the upper air outlet 11 and the longitudinal air duct 30, and the lower air supply mechanism 42 is used for supplying air to at least one lower air outlet 21.

The air duct system 100 is provided with the longitudinal air duct 30 to communicate the upper air duct 10 and the lower air duct 20, so that the air flow flowing into the upper air duct 10 from the upper air supply mechanism 41 can flow into the lower air duct 20 through the longitudinal air duct 30, and thus the air flow can selectively flow out of at least one lower air outlet 21, and meanwhile, the air flow provided by the lower air supply mechanism 42 can flow into the lower air outlet 21, and the air flow provided by the upper air supply mechanism 42 flow into the lower air outlet 21, so that the air flow size of the lower air outlet 21 is increased, and different air supply effects can be realized by opening or closing different air outlets or different air supply mechanisms, and meanwhile, a plurality of lower air outlets 21 with different height positions are arranged, and the air can be selectively supplied by using different lower air outlets 21 according to the height of the obstacle on the supporting surface during heating, so that the air flow can flow to a more distant position.

It can be appreciated that, among the plurality of lower air outlets 21 in this embodiment, one close to the upper air outlet 11 may be a middle air outlet, so that the upper part, middle part and lower part of the air conditioner can realize air supply; or may be all lower air outlets so that upper air supply is realized through the upper air outlets 11 and lower air supply is realized through the plurality of lower air outlets 21.

Referring to fig. 1, in one embodiment of the present invention, in order to control different air intake modes of the upper air supply mechanism 41 and the lower air supply mechanism 42, the air duct system 100 has an air intake cavity 50, so that the upper air supply mechanism 41 and the lower air supply mechanism 42 can conveniently perform air intake from the air intake cavity 50, in order to conveniently control the air intake of the upper air supply mechanism 41 and the lower air supply mechanism 42, the upper air supply mechanism 41 in this embodiment is disposed in the air intake cavity 50 and faces the upper air duct 10, the lower air supply mechanism 42 is disposed in the longitudinal air duct 30 and faces the lower air duct 20, and the side wall of the longitudinal air duct 30 faces the air intake cavity 50 and has the air intake 31 of the lower air supply mechanism 42, so that the air intake can be conveniently controlled by disposing the upper air supply mechanism 41 and the lower air supply mechanism 42 at different air intake positions, for example, the upper air supply mechanism 41 located in the air intake cavity 50 can control the air intake of a large air volume, and the air intake of the lower air supply mechanism 42 located in the longitudinal air duct 30 can be controlled by controlling the opening size of the air intake of the lower air supply mechanism 42 located in the air duct 30, so as to control the air intake of a smaller air volume of the lower air supply mechanism 42.

Specifically, the air duct system 100 further includes a first switch door 60, where the first switch door 60 is used to open or close the air inlet 31, so that when the lower air outlet 21 does not need to send air, the air inlet 31 can be closed by the first switch door 60, and at this time, the air flow entering the air inlet chamber 50 is sucked by the upper air supply mechanism 41 and sent to the upper air duct 10, and sent out from the upper air outlet 11, for example, the air duct system may be in a cooling mode, and can send a large amount of cold air flow to the upper air outlet 11, and because the cold air has a sinking characteristic, the sinking cold air realizes temperature control and cooling to the environment.

It will be appreciated that in another embodiment, the first switch door 60 may be opened, so that the lower air supply mechanism 42 can also supply air from the air inlet cavity 50 and deliver the air to the lower air duct 20, so that the lower air outlet 21 can also supply air to realize the global air supply of the air duct system 100.

Or in another embodiment, when the first switch door 60 is opened, the upper air supply mechanism 41 may be closed, so that the air flow in the air inlet cavity 50 can be sucked by the lower air supply mechanism 42 and sent out from the lower air outlet 21, thereby increasing the air output of the lower air outlet 21.

Wherein, to achieve different air-out effects, the air duct system 100 further includes a second switch door 70, where the second switch door 70 is used to close the upper air outlet 11 or close the longitudinal air duct 30, so that when the upper air outlet 11 is in a closed state, the air flow conveyed by the upper air supply mechanism 41 flows to the longitudinal air duct 30, and thus the air flow can be sent out from at least one lower air outlet 21; or when the longitudinal air duct 30 is in a closed state, the air flow conveyed by the upper air supply mechanism 41 flows to the upper air outlet 11 so as to be sent out from the upper air outlet 11, so that the air flow direction of the upper air supply mechanism 41 can be controlled by arranging the second switch door 70, for example, when the air outlet of the lower air outlet 21 does not need to be increased, or when the lower air outlet 21 does not need to be discharged, the longitudinal air duct 30 can be closed by the second switch door 70, and at the moment, the air flow sucked by the upper air supply mechanism 41 can only be sent out from the upper air outlet 11; for example, when the air outlet 11 does not need air outlet, the second switch door 70 may close the upper air outlet 11, and at this time, the air flow sucked by the upper air supply mechanism 41 may flow to the longitudinal air duct 30, so as to cooperate with the air flow sucked by the lower air supply mechanism 42 to flow out of the lower air outlet 21 together, so as to increase the air outlet of the lower air outlet 21.

The air duct system 100 in this embodiment further includes a heat exchange mechanism 90, and an air intake cavity 50 is formed between the heat exchange mechanism 90 and the longitudinal air duct 30.

In order to realize differential air supply, the heat exchange mechanism 90 in this embodiment includes an upper heat exchange portion and a lower heat exchange portion, where the heat exchange capability of the upper heat exchange portion is greater than that of the lower heat exchange portion, for example, the heat exchange flow channel of the upper heat exchange portion is greater than that of the lower heat exchange portion, or the refrigerant flow rate flowing into the upper heat exchange portion is greater than that of the lower heat exchange portion, so that during refrigeration or heating, the air flow provided to the upper air supply mechanism 41 is the air flow passing through stronger heat exchange, the air flow provided to the lower air supply mechanism 42 is the air flow passing through weaker heat exchange, and thus during refrigeration, the upper air outlet 11 can deliver a cold air flow with a lower temperature, and the lower air outlet 21 can deliver a cold air flow with a temperature less than that of the upper air outlet 11, so as to improve user comfort and avoid the air flow with a lower temperature from directly blowing users.

As can be appreciated, during heating, the heat exchange mechanism 90 exchanges heat with the air flow in the air inlet cavity 50, the upper air supply mechanism 41 corresponds to an upper heat exchange portion with stronger heat exchange capability, and is capable of conveying the air flow with higher temperature, but when the air conditioner is in the just-opened stage, because the temperature of the heat exchange mechanism 90 cannot reach the heat exchange temperature required by the user quickly, in order to realize quick heat exchange with the air flow during heating, please refer to fig. 1, the air duct system 100 in this embodiment further includes an auxiliary heat mechanism 80, the auxiliary heat mechanism 80 is arranged in the longitudinal air duct 30, and is used for exchanging heat with the air flow conveyed by the upper air supply mechanism 41, and making the air flow after heat exchange send out from at least one lower air outlet 21, so that in the initial stage of opening the air conditioner, the air flow after passing through the heat exchange mechanism 90 can pass through the heat exchange of the auxiliary heat mechanism 80 again, and flow out from the lower air outlet 21, so as to improve the heat exchange efficiency of the auxiliary heat mechanism 80, and can quickly provide the air flow with higher temperature to the user, and send out from the lower air outlet 21, so as to control the environment with lower self-raised temperature.

Specifically, the assist heating mechanism 80 in the present embodiment may be a graphene heating mechanism, thereby enhancing the heat exchange rate of air.

Referring to fig. 1, in order to facilitate control of the lower air outlet 21, the lower air duct 20 includes a first section 22 and a second section 23, the first section 22 is provided with at least one lower air outlet 21, the second section 23 is provided with at least one lower air outlet 21, the air duct system 100 further includes a third switch door 24, and the third switch door 24 is disposed between the first section 22 and the second section 23 and is used for controlling opening or closing of the lower air outlet 21 of the first section 22 or controlling on/off between the first section 22 and the second section 23, so that by providing the third switch door 24, air flow can be controlled to be only sent from the lower air outlet 21 of the first section 22 or air flow can be simultaneously controlled to be sent from the lower air outlets 21 of the first section 22 and the second section 23 or air flow can be controlled to be sent from the lower air outlet 21 of the second section 23.

Specifically, the present embodiment includes a third switch door 24, where a lower air outlet 21 is provided in the first section 22, and the third switch door 24 is used to open or close the second section 23 or to open or close the lower air outlet 21 of the first section 22.

In addition, in order to enable the lower air outlet 21 to have different usage modes, the air duct system 100 further includes at least one fourth door 25, where the fourth door 25 is disposed on the second section 23 and is used for opening or closing the lower air outlet of the second section 23, so as to control and close some of the lower air outlets 21 of the second section 23 as required, so as to achieve different air outlet effects.

In a specific embodiment of the invention, the second section 23 has a lower outlet 21 and a fourth door 25 is provided, whereby the lower outlet 21 of the second section 23 is opened or closed by the fourth door 25.

Therefore, the lower air outlets 21 of the first section 22 and the second section 23 can be correspondingly opened or closed according to the height of the obstacle of the supporting surface, so as to achieve the effect of avoiding the obstacle.

The air outlet of the air duct system 100 has a plurality of different usage modes: for example, all air supply mechanisms and air outlets can be opened, so that the effect of global air supply is realized; or in the refrigerating mode, all the lower air outlets 21 are closed, so that the air flows sucked by the upper air supply mechanism 41 and the lower air supply mechanism 42 are all sent out from the upper air outlet 11, the air supply quantity of the upper air outlet 11 is increased, and a strong refrigerating air outlet state is realized; or closing the upper air outlet 11 so that the air flow sucked by the upper air supply mechanism 41 and the lower air supply mechanism 42 is sent out from the lower air outlet 21 to increase the air supply quantity of the lower air outlet 21; or in heating mode, the upper air outlet 11 is closed, so that the air flow sucked by the upper air supply mechanism 41 flows through the auxiliary heating mechanism 80 in the longitudinal air duct 30 and then is quickly heat-exchanged, and the lower air outlet 21 can quickly convey hot air flow; simultaneously when carrying out the air supply through lower air outlet 21, owing to have a plurality of high different lower air outlets 21, can be according to the barrier condition on the holding surface, the lower air outlet 21 of different positions of selective use to reach the effect of keeping away the barrier, when the holding surface has the barrier, use the lower export 21 of position higher and the lower air outlet 21 of closed position for the air current can bypass the barrier, with have farther flowing distance, reach the more extensive accuse temperature effect to indoor.

Referring to fig. 2 to 12, the present invention further provides an air conditioner 200 including the air duct system 100 in a second embodiment, where the air conditioner 200 includes a body 210, and the body 210 has the air duct system 100.

Therefore, the air duct system 100 is installed in the machine body 210, so that the air conditioner 200 can have different air outlet modes, different requirements of users are met, and the air outlet mode of the air conditioner is variously developed.

Referring to fig. 2 and 3, in order to make the air conditioner 200 capable of exhausting air comfortably, the machine body 210 is provided with an annular air outlet 214, the annular air outlet 214 is located below the upper air outlet 11 and above each lower air outlet 21, and is formed around the machine body 210, so that through annular air supply, direct blowing feeling to a user is reduced, and comfort of the user is improved.

Specifically, the machine body 210 in this embodiment includes a main body 211 and a front baffle 212 movably connected with the main body 211, a gap is formed between the front baffle 212 and the main body 211, the front baffle 212 can move relative to the main body 211 to adjust the size of the annular air outlet 214, so that by setting the movable front baffle 212, the size of the annular air outlet 214 can be adjusted to adjust the air outlet size of the annular air outlet 214, and a user can select according to his own needs.

Referring to fig. 4, in one embodiment of the present invention, the main body 212 includes an air inlet grille 2121, a rear case 2122, a front case 2124, and a lower air outlet structure 213, the rear case 2122 is formed with a total air inlet 2125, the air inlet grille 2121 is mounted at the total air inlet 2125, a mounting space is formed between the rear case 2122 and the front case 2124 for accommodating the heat exchange mechanism 90 and the air duct system 100, the front baffle 212 is mounted at the front case 2124, the front case 2124 is formed with an air outlet 2126, and air flowing out from the air outlet 2126 is blown onto the front baffle 212 and then blown out from a gap between the front baffle 212 and the front case 2124 to form annular air.

Wherein, the lower air outlet structure 213 is formed with at least one lower air outlet 21, so as to achieve the effect of avoiding obstacles by selecting different lower air outlets 21. Specifically, the lower air outlet structure 213 includes a connection frame 2131 and a support frame 2132, the connection frame 2131 forms one lower air outlet 21, the support frame 2132 forms another lower air outlet 21, and the connection frame 2131 is connected between the air duct system 100 and the support frame 2132 and can be mutually communicated with each other.

Specifically, the air conditioner 200 in this embodiment has an upper mounting structure 250, an intermediate air duct structure 220 and a lower fan mounting structure 240 in specific mounting, the upper mounting structure 250 is used for mounting the upper air supply mechanism 41, a longitudinal air duct 30 is enclosed between the intermediate air duct structure 220 and the lower fan mounting structure 240, the lower fan mounting structure 240 is used for mounting the lower air supply mechanism 42, an air inlet cavity 50 is formed between the lower fan mounting structure 240 and the heat exchange mechanism 90, the intermediate air duct structure 220 has an upper opening 221, a first air outlet 222 and a second air outlet 223, wherein the upper opening 221 and the first air outlet 222 are mutually communicated through an internal channel arranged in the intermediate air duct structure 220, the first air outlet 222 and the second air outlet 223 are mutually communicated through the longitudinal air duct 30, and the internal channel arranged in the intermediate air duct structure 220 and a space enclosed between the intermediate air duct structure 220 and the lower fan mounting structure 240 jointly form the longitudinal air duct 30, and the second air outlet 223 is communicated with the annular air outlet 214.

The second opening and closing door 70 is used for opening or closing the upper opening 221, i.e., opening or closing the longitudinal duct 30, and for closing the upper air outlet 11. In other embodiments, the air conditioner 200 may include an upper air outlet structure 230, and the upper air outlet structure 230 may form or close the upper air outlet 11 by being extended and retracted up and down with respect to the main body 212.

When the second switch door 70 opens the upper opening 221 and closes the upper air outlet 11, the air flow sucked from the air inlet chamber 50 by the upper air supply mechanism 41 is delivered to the upper opening 221, flows to the first air outlet 222 through the internal channel provided in the middle air duct structure 220, and the air flow flowing out of the first air outlet 222 passes through the auxiliary heating mechanism 80 and is blown out through the second air outlet 223 and onto the front baffle 212 when heating, is blocked by the front baffle 212, and is blown out from the gap between the front baffle 212 and the front housing 2124 to form an annular air flow.

The air conditioner 200 in this embodiment further includes a fifth switch door 270 for opening or closing the second air outlet 223, so as to control whether the annular air outlet 214 located in the middle is air-out.

In the lower fan mounting structure 240 of the present embodiment, a rear opening 241 facing the heat exchange mechanism 90 and two side openings 242 disposed on two sides are formed, and the rear opening 241 and the two side openings 242 are respectively communicated with the air inlet chamber 50 for providing air flow to the lower air supply mechanism 42 so as to increase the air intake of the lower air supply mechanism 42. The first opening and closing door 60 is used to simultaneously open or simultaneously close the rear opening 241 and the two side openings 242 provided at both sides.

In addition, referring to fig. 4, the air conditioner 200 in this embodiment further includes a pipe mounting structure 260, where the pipe mounting structure 260 is mounted on the lower air outlet structure 213 for mounting the refrigerant pipe and the drainage pipe, so that the arrangement of the refrigerant pipe and the drainage pipe is facilitated by providing the pipe mounting structure 260.

It can be understood that the first segment 22 in the present embodiment corresponds to the connection frame 2131, and the second segment 23 corresponds to the support frame 2132. Referring to fig. 6, a schematic diagram of the third switch door 24 for controlling the opening and closing of the lower air outlet 21 of the first section 22 or controlling the opening and closing between the first section 22 and the second section 23 is shown. The connection frame 2131 has a communication passage 2133 communicating with the support frame 2132, and the third opening and closing door 24 is rotatably opened or closed to open or close the communication passage 2133 or to open or close the lower air outlet 21 on the connection frame 2131.

Referring to fig. 2, 4 and 5, in the present embodiment, the lower air outlet 21 located on the connecting frame 2131 has a first outlet portion 2101 and a second outlet portion 2102, the first outlet portion 2101 faces the supporting frame 2132, the first outlet portion 2101 and the second outlet portion 2102 are mutually communicated, so that the air flow conveyed from the first outlet portion 2101 can be sent out from the second outlet portion 2102, and the second outlet portion 2102 and the annular air outlet 214 face the same side of the main body 211, so that by setting the lower air outlet 21 on the connecting frame 2131 to have the first outlet portion 2101 and the second outlet portion 2102, the air flow flows downwards from the first outlet portion 2101 and then flows out to the second outlet portion 2102, so that the air outlet of the air conditioner has more structural design, and the diversified development of the air conditioning structure is realized.

The upper air outlet 11, the second air outlet 2102 and the lower air outlet 21 of the supporting frame 2132 face the same side of the machine body 210 and are all forward.

Fig. 6 and fig. 7 are schematic structural diagrams showing the upper air outlet structure 230 in an extended state relative to the machine body 210 according to an embodiment of the invention. In the refrigerating mode, when the air outlet is carried out through the upper air outlet 11, the strong refrigerating mode is correspondingly adopted; for example, referring to fig. 8, the air outlet may be performed through the upper air outlet 11 and the middle annular air outlet 214 to realize forced cooling of the upper portion and comfortable air outlet of the middle portion; for example, referring to fig. 9, the global air supply may be implemented by the way that the upper air outlet 11, the annular air outlet 214 and the lower air outlets 21 all output air; alternatively, referring to fig. 10, the cold air flows delivered by the upper air supply mechanism 41 and the lower air supply mechanism 42 are all sent out from the annular air outlet 214 in the middle part, so as to realize strong air supply in the middle part. In the heating mode, referring to fig. 10 and 11, the upper air outlet 11 is closed to selectively blow air through the lower air outlet 21; or referring to fig. 12, the upper air outlet 11 is closed to supply air through all the lower air outlets 21.

Therefore, the air conditioner provided by the embodiment of the invention has different air supply modes, and a user can select according to own needs, so that the air conditioner has practicability.

The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (10)

1. An air duct system, comprising:

the upper air duct is provided with an upper air outlet;

the lower air duct is provided with a plurality of lower air outlets, and the plurality of lower air outlets are sequentially arranged in a separated mode from top to bottom;

the longitudinal air duct is communicated with the upper air duct and the lower air duct;

the air supply system comprises an upper air supply mechanism and a lower air supply mechanism, wherein the upper air supply mechanism is used for supplying air to the upper air outlet and the longitudinal air duct, and the lower air supply mechanism is used for supplying air to at least one lower air outlet.

2. The air duct system of claim 1, further comprising an air intake chamber, wherein the upper air supply mechanism is disposed in the air intake chamber, wherein the lower air supply mechanism is disposed in the longitudinal air duct, and wherein a side wall of the longitudinal air duct facing the air intake chamber has an air inlet of the lower air supply mechanism.

3. The air duct system of claim 2, further comprising a first switch door for opening or closing the air intake.

4. The air duct system of claim 1, further comprising a second switch door for closing the upper air outlet or closing the longitudinal air duct such that the air flow delivered by the upper air supply mechanism flows toward the longitudinal air duct when the upper air outlet is in a closed state; or when the longitudinal air duct is in a closed state, the air flow conveyed by the upper air supply mechanism flows to the upper air outlet.

5. The duct system of claim 1, wherein the lower duct comprises a first section and a second section, the first section is provided with at least one lower air outlet, the second section is provided with at least one lower air outlet, the duct system further comprises at least one third switch door disposed between the first section and the second section for controlling opening or closing of the lower air outlet of the first section or controlling on-off between the first section and the second section.

6. The duct system of claim 5, further comprising at least one fourth door disposed on the second section for controlling opening or closing of the lower outlet of the second section.

7. The duct system of claim 1, further comprising an auxiliary heating mechanism disposed in the longitudinal duct for exchanging heat with the air flow delivered by the upper air supply mechanism and delivering the exchanged air flow from at least one of the lower air outlets.

8. An air conditioner based on the duct system of any one of claims 1 to 7, comprising:

the air duct system is arranged in the machine body.

9. The air conditioner of claim 8, wherein the body is provided with an annular air outlet, the annular air outlet is located below the upper air outlet and above each of the lower air outlets.

10. The air conditioner of claim 8, wherein the body comprises a main body and a front baffle movably connected with the main body, a gap is formed between the front baffle and the main body, the gap is formed into the annular air outlet, and the front baffle can move with respect to the main body to adjust the size of the annular air outlet.