Air conditioner

Abstract

The utility model provides an air conditioner and relates to the technical field of air conditioners. The air conditioner can comprise a machine body, an air outlet pipeline, an air inlet pipeline and an air return pipeline. Wherein the evaporator in the machine body performs heat exchange on gas, the air inlet pipeline conveys the gas subjected to heat exchange in the machine body to the air outlet pipeline and then blows the gas out of the air outlet pipeline, and the air return pipeline guides the gas in the target space into the machine body and then performs heat exchange. According to the air conditioner, the air outlet pipeline is arranged according to the preset direction, that is, the direction of the air outlet pipeline can be set according to requirements, so that the blown air can have different directions, the effect of the air conditioner is better, and the user experience is improved. According to the air conditioner, air supply and air return are conducted through the air inlet pipeline and the air return pipeline respectively, the air resistance of air supply and air return can be reduced, the air supply amount and the air return amount are guaranteed, and the efficiency of the air conditioner is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air conditioner. Background Technology

[0002] Traditional household wall-mounted air conditioners consist of an indoor unit and an outdoor unit. However, regardless of the model, the indoor unit contains core components such as a heat exchanger, motor, and fan blades, limiting its design to a compact and elegant form, thus hindering its integration into home décor. Currently, there are technologies that place the unit outside the wall and deliver air into the target space via ductwork. However, these ductwork ducts are typically placed horizontally at the ceiling of the target space, resulting in poor air conditioning performance. Utility Model Content

[0003] The first objective of this utility model is to provide an air conditioner that solves the problem that the air supply duct of existing air conditioners is horizontally angled, resulting in poor air conditioning performance.

[0004] Specifically, this utility model provides an air conditioner, comprising:

[0005] The unit has an evaporator, a condenser, a compressor, and a fan inside. The gas inside the unit undergoes heat exchange through the evaporator and is then blown out by the fan.

[0006] The air outlet duct, arranged in a preset direction, is used to evenly blow the gas blown out by the machine body into the target space;

[0007] An air inlet duct, one end of which is connected to the main body, and the other end of which is connected to the side wall of the air outlet duct, to deliver the air blown out by the main body into the air outlet duct; and

[0008] The return air duct is connected at one end to the main body and at the other end to the side wall of the outlet air duct, so as to introduce the gas in the target space into the main body.

[0009] Optionally, the preset direction is selected from the horizontal direction, the vertical direction, or any direction in the process from the horizontal direction to the vertical direction.

[0010] Optionally, the air outlet duct includes an air outlet duct and a return air duct, one end of the air inlet duct is connected to the side wall of the air outlet duct, the return air duct is connected to the return air duct, and the air outlet duct and the return air duct are separate from each other.

[0011] Optionally, the side wall of the air outlet duct includes:

[0012] The first air inlet is connected to the end of the air inlet pipe and connects the air inlet pipe to the air outlet pipe, so that the gas in the air inlet pipe enters the air outlet pipe through the first air inlet.

[0013] An air outlet connects the air outlet duct to the target space, so that the gas entering the air outlet duct enters the target space through the air outlet.

[0014] Optionally, at least one first baffle is provided inside the air outlet duct, and at least one first through hole is provided at each first baffle, with at least a portion of the outer periphery of the first baffle contacting the side wall of the air outlet duct.

[0015] Optionally, there may be multiple first baffles, which are spaced apart and arranged in parallel along the extension direction of the air outlet duct.

[0016] Optionally, the proportion of the total cross-sectional area of ​​the first through holes of the first baffle to the total cross-sectional area of ​​the first baffle gradually increases from the position of the first air inlet to the position away from the first air inlet.

[0017] Optionally, the density of the first baffle gradually decreases in the direction from the position near the first air inlet to the position away from the first air inlet.

[0018] Optionally, a second baffle is provided at the air outlet of the air outlet duct, and at least one second through hole is provided at the second baffle so that the gas in the air outlet duct passes through the second through hole before being blown out.

[0019] Optionally, a third baffle is provided at the air outlet of the air outlet duct, and at least one third through hole is provided at the third baffle; the third baffle is located outside the second baffle, so that the gas after passing through the second baffle passes through the third baffle again before being blown out.

[0020] Optionally, the air outlet duct also includes a humidification device, which is located at one end of the air outlet duct, and the mist from the humidification device enters the air outlet duct and then follows the gas in the air outlet duct out through the air outlet.

[0021] Optionally, the return air duct sidewall includes:

[0022] The second air inlet connects the return air duct to the target space, so that the gas in the target space enters the return air duct through the second air inlet.

[0023] A return air inlet is connected to the end of the return air duct and connects the return air duct to the return air pipe, so that the gas in the return air pipe enters the return air duct through the return air inlet.

[0024] Optionally, a fourth baffle is provided at the second air inlet, and at least one fourth through hole is provided at the fourth baffle.

[0025] Optionally, the outlet air duct is located at one end of the return air duct.

[0026] This air conditioning system includes a main unit, an air outlet duct, an air inlet duct, and a return air duct. The evaporator inside the main unit exchanges heat with the gas. The air inlet duct transports the heat-exchanged gas from the main unit to the air outlet duct, from which it is then blown out. The return air duct draws gas from the target space back into the main unit for further heat exchange. The air outlet duct is configured with a preset direction, meaning its direction can be customized to allow for different airflow directions, resulting in better air conditioning performance and an improved user experience.

[0027] The air outlet duct of this design is placed vertically, allowing the air to be blown out over a large range in the vertical direction. This makes it easier for warm air to blow downwards and for cold air to blow upwards, thus enabling the air conditioner to distribute heat and cold air separately and improving the heating effect of the air conditioner.

[0028] This air conditioning system uses separate air intake and return ducts to supply and return air, which reduces air resistance, ensures sufficient air volume, and improves air conditioning efficiency.

[0029] This solution places the humidifier inside the air outlet duct. The mist from the humidifier enters the air outlet duct directly and then flows out with the air in the duct. This allows the air conditioner to humidify the air while blowing out hot or cold air, further enhancing the user experience.

[0030] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0031] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0032] Figure 1 This is a schematic structural diagram of an air conditioner according to a specific embodiment of the present utility model;

[0033] Figure 2 This is a schematic structural diagram showing the interconnection of an air outlet duct, a return air duct, and an air inlet duct according to another specific embodiment of the present invention.

[0034] Figure 3 This is a partial exploded view of the air outlet duct according to a specific embodiment of the present invention;

[0035] Figure 4 This is a cross-sectional view of the air outlet duct according to another specific embodiment of the present utility model;

[0036] Figure 5 This is a cross-sectional view of the air outlet duct according to another specific embodiment of the present utility model;

[0037] Figure 6 This is a partial exploded view of the air outlet duct and the air return duct according to another specific embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] Air conditioner - 100; Unit body - 200; Air outlet duct - 300; Air outlet pipe - 310; First air inlet - 311; Air outlet - 312; First baffle - 313; First through hole - 3131; Second baffle - 314; Second through hole - 3141; Third baffle - 315; Third through hole - 3151; Return air duct - 320; Second air inlet - 321; Return air outlet - 322; Fourth baffle - 323; Fourth through hole - 3231; Air inlet duct - 400; Return air duct - 500; Through-wall section - 401; Humidifier - 600. Detailed Implementation

[0040] In the description of this embodiment, it should be understood that the terms "length", "width", "height", "up", "down", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "front", "back", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] As a specific embodiment of this utility model, such as Figure 1 and Figure 2As shown, this embodiment discloses an air conditioner 100, which may include a body 200, an air outlet duct 300, an air inlet duct 400, and a return air duct 500. The body 200 houses an evaporator, a condenser, a compressor, and a fan. Gas within the body 200 undergoes heat exchange through evaporation and is then blown out by the fan. The air outlet duct 300 is positioned in a predetermined direction to evenly distribute the gas blown out of the body 200 into a target space. One end of the air inlet duct 400 is connected to the body 200, and the other end is connected to the side wall of the air outlet duct 300, to deliver the gas blown out of the body 200 into the air outlet duct 300. One end of the return air duct 500 is connected to the body 200, and the other end is connected to the side wall of the air outlet duct 300, to introduce gas from the target space into the body 200.

[0042] Specifically, the air conditioner 100 in this embodiment may include a body 200, an air outlet duct 300, an air inlet duct 400, and a return air duct 500. The evaporator inside the body 200 performs heat exchange on the gas. The air inlet duct transports the heat-exchanged gas from the body 200 to the air outlet duct 300, from which it is then blown out. The return air duct 500 draws gas from the target space back into the body 200 for further heat exchange. In this embodiment, the air outlet duct 300 is configured according to a preset direction; that is, the direction of the air outlet duct 300 can be set as required, allowing the airflow to travel in different directions, thereby improving the air conditioning effect and enhancing the user experience.

[0043] Specifically, the preset direction in this embodiment is selected from the horizontal direction, the vertical direction, or any direction in the process from the horizontal direction to the vertical direction.

[0044] Specifically, the preset direction in this embodiment can be selected from the horizontal direction. However, this horizontal direction is not necessarily perfectly horizontal, but rather substantially horizontal, or it can form a relatively small angle with the horizontal. Alternatively, the preset direction in this embodiment can also be selected from the vertical direction. This vertical direction is also not necessarily perfectly vertical, but can form a certain angle with the vertical direction. Of course, the preset direction can also be selected from any direction between the horizontal and vertical directions. The specific preset direction can be selected and designed according to the actual situation.

[0045] The following explanation will take the example of a preset direction that is basically vertical.

[0046] Specifically, when the air outlet duct 300 is placed vertically, it makes it easier for warm air to blow downwards and for cold air to blow upwards, thereby enabling the air conditioner 100 to distribute heat and cold air separately, improving the heating effect of the air conditioner 100, and thus improving the user experience.

[0047] Specifically, in this embodiment, the air conditioner 100 supplies air and returns air through the air inlet duct 400 and the air return duct 500 respectively, which can reduce the air resistance of the supply and return air, ensure the air volume of the supply and return air, and improve the efficiency of the air conditioner 100.

[0048] As a specific embodiment of this utility model, such as Figure 1 As shown, in this embodiment, the outlet air duct 310 is located above the return air duct 320. The first air inlet 311 is located on one side wall of the outlet air duct 310, and can be positioned near the top, bottom, or middle of the outlet air duct 310. When the first air inlet 311 is located near the bottom of the side wall of the outlet air duct 310, it reduces the amount of air inlet duct 400 used, thus saving costs. When the first air inlet 311 is located near the middle of the side wall of the outlet air duct 310, the baffle allows the air to be blown up and down, resulting in better and more uniform airflow.

[0049] As a specific embodiment of this utility model, such as Figure 2 As shown, in this embodiment, the outlet air duct 310 is located below the return air duct 320. Similarly, the first air inlet 311 on the side wall of the outlet air duct 310 in this embodiment can be located near the top, near the bottom, or near the middle of the outlet air duct 310. When the first air inlet 311 is located near the bottom of the side wall of the outlet air duct 310, it can save the amount of air inlet duct 400 used, thereby saving costs. When the first air inlet 311 is located near the middle of the side wall of the outlet air duct 310, it can use a baffle to make the air blow out vertically, thereby making the air outlet effect better and more uniform.

[0050] Specifically, in this embodiment, both the air inlet duct 400 and the return air duct 500 have a wall penetration section 401, and the ratio of the cross-sectional area of ​​the wall penetration section 401 to the power of the air conditioner 100 is less than or equal to 57.37 cm². 2 / kw; The cross-sectional area of ​​the wall-penetrating section 401 is less than or equal to 200cm². 2 .

[0051] Generally, since the through-wall opening is circular, the cross-section of the through-wall section 401 is also preferably circular. However, some current regulations require that the area of ​​the through-wall opening not exceed 200 cm². 2 Therefore, the area of ​​the through-wall section 401 in this embodiment is no greater than 200 cm². 2 In this embodiment, when the power of the air conditioner 100 in the wall-penetrating section 401 is 1.5 horsepower or higher, the upper limit of the cross-sectional area of ​​the corresponding wall-penetrating section 401 is 200 cm². 2When the power of the air conditioner 100 is lower, the cross-sectional area of ​​its wall-penetrating section 401 can be smaller. Furthermore, on the one hand, power has a significant limitation on cross-sectional area; the cross-sectional area of ​​the air supply duct is fixed for a given power. On the other hand, it is subject to existing laws and regulations, meaning the cross-sectional area cannot be infinitely large. In this embodiment, the ratio of the cross-sectional area of ​​the wall-penetrating section 401 of the air supply duct to its power is less than or equal to 57.37 cm². 2 / kw, and the cross-sectional area of ​​the wall-penetrating section 401 is less than or equal to 200cm². 2 This not only meets the size requirements of the through-wall section 401, but also further meets the power requirements of the air conditioner 100.

[0052] As a specific embodiment of the present utility model, the air outlet duct 300 of this embodiment may include an air outlet duct 310 and a return air duct 320. The end of the air inlet duct 400 is connected to the air outlet duct 310, and the end of the return air duct 320 is connected to the return air duct 320. The air outlet duct 310 and the return air duct 320 are separate from each other.

[0053] Specifically, in this embodiment, the air outlet duct 310 and the air return duct 320 are separated from each other to avoid mutual interference between the air outlet and the air return, thereby improving the efficiency of the air conditioner 100.

[0054] As a specific embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the side wall of the air outlet duct 310 in this embodiment may include a first air inlet 311 and an air outlet 312. The first air inlet 311 is connected to the end of the air inlet duct 400, connecting the air inlet duct 400 and the air outlet duct 310, allowing gas in the air inlet duct 400 to enter the air outlet duct 300 through the first air inlet 311. The air outlet 312 connects the air outlet duct 310 to the target space, allowing gas entering the air outlet duct 300 to enter the target space through the air outlet 312.

[0055] Specifically, in this embodiment, the first air inlet 311 can be located on the side wall or at the end of the air outlet duct 310, preferably at the end. However, since the air outlet duct 310 extends vertically, the first air inlet 311 in this embodiment is located on the side wall. Furthermore, a baffle without through holes is used at the position corresponding to the first air inlet 311 on the side of the air outlet 312 to block the air from being blown out directly.

[0056] As a specific embodiment of the present utility model, at least one first baffle 313 is provided inside the air outlet duct 310 of this embodiment, and at least one first through hole 3131 is provided at each first baffle 313. At least a portion of the outer periphery of the first baffle 313 contacts the side wall of the air outlet duct 310.

[0057] In this embodiment, the air outlet duct 310 is provided with a first baffle 313 inside the air duct. The first baffle 313 is provided with a first through hole 3131. At least a portion of the outer periphery of the first baffle 313 contacts the inner sidewall of the air outlet duct 310, so that the gas blown out from the air outlet duct 310 has good uniformity and improves the user experience.

[0058] More specifically, in this embodiment, the outer periphery of each first baffle 313 of the air outlet duct 310 is in contact with the side wall of the air outlet duct 310 where the non-air outlet 312 is located.

[0059] Specifically, in this embodiment, the outer periphery of the first baffle 313 contacts the side wall where the non-air outlet 312 is located. On the one hand, it can block the gas blown in by the first air inlet 311 so that it can be blown out by the air outlet 312. On the other hand, it leaves a certain gap on the side of the air outlet 312 so that the airflow can always reach the side away from the air inlet.

[0060] Specifically, in this embodiment, the air outlet 312 is located on the side wall of the air outlet duct 310, which is parallel to the extension direction. This ensures that the direction of the finally blown-out gas is perpendicular to the extension direction of the air outlet duct 310.

[0061] Of course, in other embodiments, the air outlet 312 and the air outlet direction can be adaptively adjusted to meet different air outlet requirements.

[0062] As a specific embodiment of the present invention, the first baffle 313 of this embodiment is substantially perpendicular to the extension direction of the air outlet duct 310. Each first baffle 313 of this embodiment is provided with at least one first through hole 3131, and at least part of the gas in the air outlet duct 310 passes through the first through hole 3131 of the first baffle 313 and is then blown out from the air outlet 312.

[0063] Specifically, in this embodiment, at least one first baffle 313 is provided inside the air outlet duct 310 to block the gas inside the air outlet duct 310, so as to prevent most or almost all of the gas inside the air outlet duct 310 from being blown to the end of the air outlet duct 310 and then blown out from the air outlet 312, thereby avoiding uneven air outlet.

[0064] Preferably, in this embodiment, a plurality of first baffles 313 are provided inside the air outlet duct 310, and the plurality of first baffles 313 are arranged at intervals along the extension direction of the air outlet duct 310.

[0065] Specifically, by setting multiple first baffles 313 inside the air outlet duct 310 along its extension direction, the air volume blown out from the air outlet 312 can be further optimized, thereby further improving the uniformity of the airflow.

[0066] As a specific embodiment of the present invention, at least a portion of the outer periphery of the first baffle 313 is in contact with the inner wall of the air outlet duct 310, thus ensuring that all the gas flowing through the first baffle 313 passes through the first through hole 3131 of the first baffle 313 before flowing to the rear.

[0067] Specifically, at least a portion of the outer periphery of each first baffle 313 contacts the inner wall of the air outlet duct 310.

[0068] Specifically, the outer periphery of each first baffle 313 contacts the side wall of the air outlet 310 where the non-air outlet 312 is located.

[0069] Specifically, the shape of the first through hole 3131 in this embodiment can be circular, elliptical, square, or other shapes. Preferably, the shape of the first through hole 3131 in this embodiment is circular.

[0070] Preferably, all the first baffles 313 in this embodiment are arranged in parallel to each other.

[0071] Preferably, in this embodiment, all the first baffles 313 are perpendicular to the extension direction of the air outlet duct 310, and the shape of all the first baffles 313 is substantially the same as the cross-sectional shape of the side wall of the air outlet duct 310.

[0072] As a specific embodiment of the present invention, the proportion of the cross-section of the first through hole 3131 of the first baffle 313 to the total cross-sectional area of ​​the first baffle 313 gradually increases from the position of the first air inlet 311 to the position away from the first air inlet 311.

[0073] Specifically, since the wind speed is higher near the first air inlet 311 and lower far from the first air inlet 311, this design ensures that the wind speed of the gas blown out by the air outlet duct 310 is similar near the first air inlet 311 and far from the first air inlet 311, resulting in good uniformity of the blown gas and improving the user experience.

[0074] Specifically, the cross-sectional area of ​​the first through hole 3131 of the first baffle 313 in this embodiment can be changed by changing the number of the first through holes 3131 or by changing the cross-sectional area of ​​each first through hole 3131.

[0075] As a specific embodiment of the present invention, the density of the first baffle 313 gradually decreases in the direction from the position near the first air inlet 311 to the position away from the first air inlet 311.

[0076] Specifically, in this embodiment, the density of the first baffles 313 near the first air inlet 311 is set to be large, while the density of the first baffles 313 far from the first air inlet 311 is set to be small. This makes the airflow near the first air inlet 311 and the airflow far from the first air inlet 311 have similar speeds, thereby making the uniformity of the gas blown out of the air outlet 312 good.

[0077] As a specific embodiment, the density of the first baffle 313 set at the air outlet duct 310 and the cross-sectional area of ​​the first through hole 3131 at the first baffle 313 can be designed according to the situation, so that the uniformity of the gas blown out of the air outlet 312 at different positions of the air outlet 312 of the air outlet duct 310 is good.

[0078] More specifically, the diameter of the first through hole 3131 at the first baffle 313 in this embodiment is adjustable. In this way, by changing the total cross-section of the first through hole 3131 at each first baffle 313, the ratio of the total cross-sectional area of ​​the first through hole 3131 to the cross-sectional area of ​​the first baffle 313 can be changed, thereby further improving the uniformity of the air output.

[0079] In another embodiment, the first baffle 313 of this embodiment can be provided with different areas at different distances from the first air inlet 311, so as to further increase the uniformity of the air outlet.

[0080] As a specific embodiment of the present invention, such as Figure 3 As shown, in this embodiment, a second baffle 314 is provided at the air outlet 312 of the air outlet duct 310. The second baffle 314 is provided with at least one second through hole 3141, through which the gas from the air outlet duct 310 is blown out.

[0081] Specifically, in this embodiment, a first through hole 3131 of a first baffle 313 is provided at the air outlet duct 310, and a second baffle 314 is provided at the air outlet 312, with a second through hole 3141 provided at the second baffle 314, to further increase the uniformity of air outlet from the air outlet duct 310.

[0082] As a specific embodiment of the present invention, such as Figures 3-5 As shown, in this embodiment, a third baffle 315 is also provided at the air outlet 312 of the air outlet duct 310. The third baffle 315 is located outside the second baffle 314 so that the gas blown out from the second baffle 314 passes through the third baffle 315 and is then blown out.

[0083] Specifically, in this embodiment, the gas blown out from the second baffle 314 passes through the third baffle 315 before being blown out again, further improving the uniformity of the airflow.

[0084] Specifically, the third baffle 315 in this embodiment can be designed as a filter structure, meaning that the density of the third through-hole is relatively high (not shown in the figure), and its size is relatively small. The filter structure of this embodiment can be obtained by placing a filter screen at the center of the frame structure.

[0085] As another specific embodiment, such as Figure 4 As shown, the third baffle 315 in this embodiment can be designed as a horizontal strip-shaped grid structure (i.e., the third through hole 3151 is formed as a strip). The direction of airflow can be adjusted by adjusting the number and direction of the grid structure.

[0086] As yet another specific embodiment, such as Figure 5 As shown, the third baffle 315 in this embodiment can also be designed as a circular plate structure with the third through hole 3151 in shape, and the size and distribution of the holes on the plate structure can be designed according to the actual situation. Specifically, in this embodiment, the diameter of the third through hole 3151 on the plate structure is large in the middle and small on both sides near the long side (i.e., both sides in the width direction).

[0087] Specifically, in this embodiment, a first baffle 313, a second baffle 314, and a third baffle 315 are provided at the air outlet duct 310. The three components achieve three-level uniform airflow, resulting in good uniformity of the gas blown out from the air outlet duct 310 and almost no wind sensation, thus improving the user experience.

[0088] As a specific embodiment of this utility model, such as Figure 3 As shown, the air outlet duct 310 of this embodiment also includes a humidifying device 600. The humidifying device 600 is located at one end of the air outlet duct 310, and the mist from the humidifying device 600 enters the air outlet duct 310 and then follows the gas from the air outlet 310 out through the air outlet 312.

[0089] Specifically, in this embodiment, the humidifier 600 is placed inside the air outlet duct 310. The mist in the humidifier 600 directly enters the air outlet duct 310 and then flows out with the gas in the air outlet duct 310, so that the air conditioner 100 can humidify the air while blowing out cold or hot air, further improving the user experience.

[0090] Specifically, when the air outlet duct 300 is placed vertically, its humidification device 600 is located below the air outlet duct 310, which facilitates the upward flow of the mist and ensures that the mist is blown out evenly.

[0091] As a specific embodiment of this utility model, such as Figure 6As shown, the return air duct 320 in this embodiment may include a second air inlet 321 and a return air outlet 322 on its side wall. The second air inlet 321 connects the return air duct 320 to the target space, allowing gas from the target space to enter the return air duct 320 through the second air inlet 321. The return air outlet 322 connects to the end of the return air duct 500 and connects the return air duct 500 to the return air duct 320, allowing gas from the return air duct 320 to enter the return air duct 500 through the return air outlet 322.

[0092] Specifically, in this embodiment, the cross-sectional structure of the return air duct 320 is designed to be the same as that of the outlet air duct 310. It has a second air inlet 321 and a return air inlet 322, and is connected to the outlet air duct 310. This design is both aesthetically pleasing and easy to install.

[0093] As a specific embodiment of this utility model, such as Figure 6 As shown, a fourth baffle 323 is provided at the second air inlet 321 in this embodiment, and at least one fourth through hole 3231 is provided at the fourth baffle 323.

[0094] Specifically, in this embodiment, a fourth baffle 323 is provided at the second air inlet 321, and a fourth through hole 3231 is provided at the fourth baffle 323. On the one hand, this makes the entire air outlet duct 300 look better, and on the other hand, it prevents substances in the target space (such as dust, paper scraps or mice) from entering the body 200 through the return air inlet 322, thereby affecting the operation of the air conditioner 100.

[0095] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises: a body in which an evaporator, a condenser, a compressor and a fan are arranged, and air in the body is blown out by the fan after heat exchange with the evaporator; an air outlet duct arranged in a preset direction for blowing the air blown out by the body into a target space uniformly; an air inlet duct connected to the body at one end and connected to a side wall of the air outlet duct at the other end for sending the air blown out by the body into the air outlet duct; and an air return duct connected to the body at one end and connected to the side wall of the air outlet duct at the other end for leading air in the target space into the body.

2. The air conditioner according to claim 1, wherein the preset direction is selected from a horizontal direction, a vertical direction or any direction from the horizontal direction to the vertical direction.

3. The air conditioner according to claim 1 or 2, wherein the air outlet duct comprises an air outlet duct and an air return duct, one end of the air inlet duct is connected to a side wall of the air outlet duct, the air return duct is connected to the air return duct, and the air outlet duct and the air return duct are separated from each other.

4. The air conditioner according to claim 3, wherein the side wall of the air outlet duct comprises: a first air inlet connected to the end of the air inlet duct and communicating the air inlet duct with the air outlet duct, so that the air in the air inlet duct enters the air outlet duct through the first air inlet; and an air outlet communicating the air outlet duct with a target space, so that the air entering the air outlet duct enters the target space through the air outlet.

5. The air conditioner according to claim 4, wherein at least one first baffle is arranged in the air outlet duct, at least one first through hole is arranged at each first baffle, and at least part of the outer periphery of the first baffle is in contact with the side wall of the air outlet duct.

6. The air conditioner according to claim 5, wherein the number of the first baffles is multiple, and the multiple first baffles are arranged in parallel and spaced along the extension direction of the air outlet duct.

7. The air conditioner according to claim 6, wherein the total cross-sectional area of the first through holes of the first baffles gradually increases from the position of the first air inlet to the position away from the first air inlet.

8. The air conditioner according to claim 6, wherein the density of the first baffles gradually decreases from the position close to the first air inlet to the position away from the first air inlet.

9. The air conditioner according to claim 5, wherein a second baffle is further arranged at the air outlet of the air outlet duct, at least one second through hole is arranged at the second baffle, so that the air in the air outlet duct is blown out through the second through hole.

10. The air conditioner according to claim 9, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ The third baffle is located outside the second baffle, so that the gas after the second baffle is blown out again after passing through the third baffle.

11. The air conditioner of claim 4, wherein, The air outlet pipe further comprises a humidifying device, the humidifying device is located at one end of the air outlet pipe, and the mist of the humidifying device is blown out by the air outlet after following the gas in the air outlet pipe.

12. The air conditioner of claim 3, wherein, The side wall of the return air duct comprises: A second air inlet, which communicates the return air duct with the target space, so that the gas in the target space enters the return air duct through the second air inlet; A return air outlet connected with the end of the return air duct, and communicating the return air duct with the return air pipe, so that the gas in the return air pipe enters the return air duct through the return air outlet.

13. The air conditioner of claim 12, wherein, The fourth baffle is provided at the second air inlet, and the fourth baffle is provided with at least one fourth through hole.

14. The air conditioner of claim 3, wherein, The air outlet pipe is located at one end of the return air pipe.

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