Air conditioner

Abstract

The utility model relates to the technical field of household appliances, and discloses an air conditioner which comprises a first cylindrical shell and a second cylindrical shell. A first air return opening and a first air outlet are formed in the side wall of the first cylindrical shell, a heat exchange flow channel is defined in the first cylindrical shell, and the first air return opening and the first air outlet both communicate with the heat exchange flow channel; the second cylindrical shell is arranged on one side of the first cylindrical shell, an air inlet and a second air outlet are formed in the side wall of the second cylindrical shell, an air treatment flow channel is defined in the second cylindrical shell, and the air inlet and the second air outlet both communicate with the air treatment flow channel. According to the air supply device, the indoor air quality can be improved, meanwhile, the influence of air treatment on the air supply effect of the heat exchange airflow is reduced, and the air supply distance is increased.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and more particularly to an air conditioner. Background Technology

[0002] Air conditioners are widely used in daily life because of their cooling and heating functions. In a closed room, air conditioners can improve the indoor temperature and regulate the indoor environment well. However, after long-term operation, air quality in the room will deteriorate, affecting the user experience.

[0003] One related technology involves adding an air handling module inside an air conditioner. This module is located within a heat exchange duct and improves indoor air quality by humidifying and purifying the air flowing through the duct.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The air handling module is located inside the heat exchange duct, which affects the heat exchange airflow inside the duct, resulting in poor air delivery effect at the air outlet of the heat exchange duct and affecting the air delivery distance.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides an air conditioner that improves indoor air quality while reducing the impact of air handling on the heat exchange airflow delivery effect and increasing the air delivery distance.

[0009] In some embodiments, an air conditioner includes: a first housing and a second housing. The first housing has a first return air inlet and a first air outlet on its side wall, and a heat exchange channel is defined inside the first housing. Both the first return air inlet and the first air outlet are connected to the heat exchange channel. The second housing is disposed on one side of the first housing, and an air inlet and a second air outlet are defined on its side wall. An air handling channel is defined inside the second housing, and both the air inlet and the second air outlet are connected to the air handling channel.

[0010] Optionally, the air conditioner also includes a base. Both the first and second column housings are disposed on the upper side of the base.

[0011] Optionally, the base defines an installation cavity, and an air handling unit is provided inside the installation cavity. The side wall of the air handling unit has a fresh air inlet, a second return air inlet, and an exhaust air outlet. The fresh air inlet is connected to the outdoor environment, the second return air inlet is connected to the indoor environment, and the exhaust air outlet is connected to the air inlet.

[0012] Optionally, a fan is provided on the upper side wall of the air handling unit, with the air inlet of the fan connected to the air outlet and the air outlet of the fan connected to the air inlet.

[0013] Optionally, the first and second column shells are arranged side by side, and the first and second column shells have the same height.

[0014] Optionally, the first air outlet and the second air outlet are respectively opened on the side wall of the first column shell and the second column shell on the same side.

[0015] Optionally, the first air outlet and the second air outlet are located in the same plane.

[0016] Optionally, a guide vane is provided on the inner side of the first air outlet, which can cause the air outlet direction of the second air outlet to shift toward the first air outlet under the action of the guide vane.

[0017] Optionally, a wet curtain is provided inside the air handling duct to block the second air outlet.

[0018] Optionally, the flow area of ​​the first air outlet is larger than that of the second air outlet.

[0019] The air conditioner provided in this disclosure can achieve the following technical effects:

[0020] By setting up a first and a second column housing, a heat exchange channel is formed inside the first column housing. Indoor air flows into the heat exchange channel through the first return air inlet and is then blown out into the indoor environment through the first air outlet, regulating the indoor temperature. An air handling channel is formed inside the second column housing. Air flowing into the air handling channel through the air inlet is treated and then flows out into the indoor environment through the second air outlet, improving the indoor air quality. Both the first and second column housings are independently set up, and the airflow in the heat exchange channel and the air handling channel does not interfere with each other. While improving indoor air quality, this reduces the impact of air handling on the heat exchange airflow delivery effect and increases the air delivery distance.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of the air handling unit provided in the embodiments of this disclosure;

[0026] Figure 4 This is provided by the embodiments of this disclosure. Figure 3 Enlarged diagram of section A in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the fresh air inlet and the second return air inlet provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of the purification module provided in an embodiment of this disclosure;

[0029] Figure 7 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure.

[0030] Figure label:

[0031] 100, First column shell; 110, First return air inlet; 120, First air outlet; 130, Heat exchange channel; 200, Second column shell; 210, Air inlet; 220, Second air outlet; 230, Air handling channel; 300, Base; 310, Mounting cavity; 400, Air handling box; 410, Fresh air inlet; 411, Sealing plate; 412, Rotating shaft; 420, Second return air inlet; 421, Second connecting gap; 422, Second grille plate; 430, Exhaust vent; 440, Fan; 450, Partition plate; 451, Connecting port; 452, First connecting gap; 453, First grille plate; 460, Purification module; 461, Dust filtration section; 462, Formaldehyde removal section; 463, Odor removal section; 470, First cavity; 480, Second cavity; 500, Wet curtain; 600, Water tank. Detailed Implementation

[0032] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0033] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0034] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0035] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0036] Unless otherwise stated, the term "multiple" means two or more.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0038] Combination Figures 1-7 As shown, in some embodiments, the air conditioner includes: a first housing 100 and a second housing 200. The first housing 100 has a first return air inlet 110 and a first air outlet 120 on its sidewall. A heat exchange channel 130 is defined inside the first housing 100, and both the first return air inlet 110 and the first air outlet 120 are connected to the heat exchange channel 130. The second housing 200 is disposed on one side of the first housing 100. An air inlet 210 and a second air outlet 220 are defined on its sidewall. An air handling channel 230 is defined inside the second housing 200, and both the air inlet 210 and the second air outlet 220 are connected to the air handling channel 230.

[0039] The air conditioner provided in this embodiment features a first column housing 100 and a second column housing 200. A heat exchange channel 130 is formed inside the first column housing 100. Indoor air flows into the heat exchange channel 130 through a first return air inlet 110 and is then blown out into the indoor environment through a first air outlet 120, regulating the indoor temperature. An air handling channel 230 is formed inside the second column housing 200. Air flowing into the air handling channel 230 through an air inlet 210 is processed and then flows out into the indoor environment through a second air outlet 220, improving indoor air quality. Both the first column housing 100 and the second column housing 200 are independently configured, and the airflow in the heat exchange channel 130 and the air handling channel 230 does not interfere with each other. This improves indoor air quality while reducing the impact of air handling on the heat exchange airflow delivery effect and increasing the air delivery distance.

[0040] Optionally, both the first return air vent 110 and the first air outlet 120 are connected to the indoor environment, and a heat exchange fan and a heat exchanger are installed inside the heat exchange channel 130. In this way, a negative pressure is formed inside the heat exchange channel 130 under the action of the heat exchange fan, drawing indoor air from the first return air vent 110 and passing it through the heat exchanger for heat exchange. The heated indoor air is then blown out again into the indoor environment through the first air outlet 120, thereby regulating the temperature of the indoor environment.

[0041] Optionally, the air conditioner also includes a base 300. The first column housing 100 and the second column housing 200 are both disposed on the upper side of the base 300. Thus, by placing the first column housing 100 and the second column housing 200 on the upper side wall of the base 300, the base 300 provides support for the first column housing 100 and the second column housing 200, making the first column housing 100, the second column housing 200, and the base 300 a unified whole, thereby improving the stability of the air conditioner.

[0042] Optionally, the base 300 defines a mounting cavity 310, which houses an air handling unit 400. The side wall of the air handling unit 400 has a fresh air inlet 410, a second return air inlet 420, and an exhaust outlet 430. The fresh air inlet 410 connects to the outdoor environment, the second return air inlet 420 connects to the indoor environment, and the exhaust outlet 430 connects to the air inlet 210. This allows the air conditioner to draw fresh air from the outdoor environment through the fresh air inlet 410 into the air handling unit 400 for processing. The processed fresh air then flows through the exhaust outlet 430 to the air inlet 210, then into the air handling duct 230 within the second casing 200, and finally exits into the indoor environment through the second air outlet 220. The air conditioner can also introduce indoor air into the air handling unit 400 through the second return air inlet 420 for processing. The processed indoor air flows through the exhaust vent 430 to the air inlet 210, and then flows into the air handling channel 230 in the second column housing 200, and flows out into the indoor environment from the second air outlet 220.

[0043] Optionally, a fan 440 is provided on the upper side wall of the air handling unit 400. The air inlet of the fan 440 is connected to the air outlet 430, and the air outlet of the fan 440 is connected to the air inlet 210. In this way, the fan 440 can provide negative pressure, which creates negative pressure in the air handling unit 400 under the action of the fan 440. This causes the air handling unit 400 to draw in air through the fresh air inlet 410 or the second return air inlet 420, and then discharge it into the air handling duct 230 through the air outlet 430.

[0044] Optionally, the air handling unit 400 is provided with a partition 450 and a purification module 460. The partition 450 divides the interior of the air handling unit 400 into a first cavity 470 and a second cavity 480. A connecting port 451 is provided on the partition 450. The fresh air inlet 410 and the second return air inlet 420 are both connected to the first cavity 470, and the exhaust port 430 is connected to the second cavity 480. The purification module 460 is installed through the partition 450, and the airflow in the first cavity 470 can flow into the second cavity 480 through the connecting port 451 and the purification module 460. In this way, by setting a partition 450 inside the air handling box 400 to separate the first cavity 470 and the second cavity 480, and opening a connecting port 451 on the partition 450, the purification module 460 is installed through the partition 450. When the connecting port 451 is open, most of the airflow in the first cavity 470 flows into the second cavity 480 along the connecting port 451. When the connecting port 451 is closed, the airflow in the first cavity 470 flows into the second cavity 480 along the purification module 460.

[0045] For example, when the user needs to introduce and purify fresh air, the fresh air inlet 410 is opened, the second return air inlet 420 and the connecting port 451 are closed, and fresh air flows from the fresh air inlet 410 into the first cavity 470, along the purification module 460 into the second cavity 480, and out through the exhaust port 430. When the user needs to introduce fresh air without purification, the fresh air inlet 410 and the connecting port 451 are opened, the second return air inlet 420 is closed, and fresh air flows from the fresh air inlet 410 into the first cavity 470, with most of the fresh air flowing into the second cavity 480 along the connecting port 451. When the user needs to purify the indoor air, the fresh air inlet 410 and the connecting port 451 are closed, the second return air inlet 420 is opened, and indoor air flows into the first cavity 470 through the second return air inlet 420, along the purification module 460 into the second cavity 480. When the user needs to promote indoor air circulation but does not require purification, the fresh air inlet 410 closes, and the second return air inlet 420 and the connecting port 451 open. Indoor air flows into the first cavity 470 through the second return air inlet 420, and most of the indoor air flows into the second cavity 480 along the connecting port 451. By coordinating the opening and closing of the fresh air inlet 410, the second return air inlet 420, and the connecting port 451, various user needs can be met, including introducing fresh air and purifying it, introducing fresh air without purification, circulating and purifying indoor air, and circulating indoor air. This simplifies the structure of the air conditioner, reduces the wear and tear on the purification module 460, and better meets the diverse needs of users.

[0046] Optionally, the fresh air inlet 410 and the second return air inlet 420 are located on the same side wall of the air handling unit 400. Along the air inlet direction of the fresh air inlet 410 and the second return air inlet 420, the connecting port 451 is located on the windward side of the purification module 460. In this way, when the connecting port 451 is open, the airflow flowing into the first cavity 470 along the fresh air inlet 410 or the second return air inlet 420 can preferentially flow into the second cavity 480 along the connecting port 451. When there is no need to purify the airflow, the airflow from the purification module 460 into the second cavity 480 is reduced, ensuring that most of the airflow in the first cavity 470 can flow to the second cavity 480 along the connecting port, thereby reducing the wear and tear on the purification module 460.

[0047] Optionally, the fresh air inlet 410 and the second return air inlet 420 are located in the lower region of the same vertical sidewall of the air handling unit 400. Thus, since the exhaust outlet 430 is located on the upper sidewall of the air handling unit 400, placing the fresh air inlet 410 and the second return air inlet 420 in the lower region of the same vertical sidewall of the air handling unit 400 allows the airflow flowing into the first cavity 470 through the fresh air inlet 410 and the second return air inlet 420 to flow into the second cavity 480 from bottom to top.

[0048] Optionally, the purification module 460 includes a dust filtration unit 461, a formaldehyde removal unit 462, and an odor removal unit 463. In this way, the purification module 460 can filter dust, remove formaldehyde, and remove odors from the airflow, improving the purification effect of the airflow and thus improving the air quality of the indoor environment.

[0049] Optionally, the dust filtration section 461, the formaldehyde removal section 462, and the odor removal section 463 are arranged sequentially along the airflow direction. In this way, the airflow passing through the purification module 460 is first filtered by dust, and then formaldehyde and odor removal are performed, reducing the risk of dust in the airflow clogging the formaldehyde removal section 462 and the odor removal section 463, and reducing the loss of the formaldehyde removal section 462 and the odor removal section 463.

[0050] Optionally, the connecting port 451 is composed of multiple first connecting gaps 452 arranged together. A first grille plate 453 is provided on the upper side of the connecting port 451. The first grille plate 453 is movably arranged, capable of simultaneously blocking or opening multiple first connecting gaps 452. In this way, by setting the connecting port 451 as an orifice-shaped structure composed of multiple first connecting gaps 452, and using the movement of the first grille plate 453 to block or open the connecting port 451, the blocking and opening of the connecting port 451 can be achieved within a small range of movement of the first grille plate 453, reducing the space occupied by the movement of the first grille plate 453 and facilitating the installation of the air handling unit 400 inside the base 300.

[0051] For example, the driving mechanism of the first grid plate 453 consists of a rack and a motor. The rack is connected to the first grid plate 453, and the output end of the motor meshes with the rack through a gear. The motor drives the rack to move, thereby driving the first grid plate 453 to move.

[0052] Specifically, when multiple first connecting gaps 452 are opened simultaneously, the connecting port 451 is opened; when multiple first connecting gaps 452 are blocked simultaneously, the connecting port 451 is closed.

[0053] Optionally, a sealing plate 411 is provided inside the fresh air inlet 410. The sealing plate 411 is rotatable, which can open or close the fresh air inlet 410. In this way, by setting the sealing plate 411 inside the fresh air inlet 410 and opening and closing the fresh air inlet 410 by rotating the sealing plate 411, the space occupied by the sealing plate 411 is reduced, which facilitates the installation of the air handling unit 400 inside the base 300.

[0054] Optionally, the fresh air inlet 410 has a circular opening structure, and the sealing plate 411 has a circular plate structure. A rotating shaft 412 is provided on the sealing plate 411, and the rotating shaft 412 is arranged along the diameter of both the sealing plate 411 and the fresh air inlet 410. Both ends of the rotating shaft 412 are rotatably connected to the inner walls of both sides of the fresh air inlet 410. In this way, the sealing plate 411 only needs to rotate 90° to open or close the fresh air inlet 410, reducing the rotation angle of the sealing plate 411. The sealing plate 411 can open and close the fresh air inlet 410 with a relatively small rotation angle, reducing the space required for the rotation of the sealing plate 411, thereby further reducing the space occupied by the sealing plate 411.

[0055] Optionally, the sealing plate 411 is driven by a motor, which is located on the outer wall of the fresh air inlet 410, and the output shaft of the motor is fixedly connected to the end of the rotating shaft 412. In this way, driving the rotation of the sealing plate 411 by a motor improves the rotational stability of the sealing plate 411.

[0056] Optionally, the second return air vent 420 is composed of multiple second connecting gaps 421 arranged together. A second grille plate 422 is provided on the outer side of the second return air vent 420. The second grille plate 422 is movable and can simultaneously block or open multiple second connecting gaps 421. In this way, by setting the second return air vent 420 as an orifice-shaped structure composed of multiple second connecting gaps 421, and using the movement of the second grille plate 422 to block or open the second return air vent 420, the blocking and opening of the second return air vent 420 can be achieved within a small range of movement of the second grille plate 422, reducing the space occupied by the movement of the second grille plate 422 and facilitating the installation of the air handling unit 400 inside the base 300.

[0057] Understandably, the drive mechanism of the second grille plate 422 is the same as that of the first grille plate 453, and will not be described in detail here.

[0058] Optionally, the first column housing 100 and the second column housing 200 are arranged side by side, and the first column housing 100 and the second column housing 200 are at the same height. This makes the overall structure of the air conditioner casing more regular and easier to place.

[0059] Specifically, the first column shell 100 and the second column shell 200 are arranged side by side on the upper side of the base 300, and the first column shell 100 and the second column shell 200 are arranged in parallel.

[0060] Optionally, the first air outlet 120 and the second air outlet 220 are respectively opened on the side wall of the first column shell 100 and the second column shell 200 on the same side. In this way, the heat exchange airflow blown out of the first air outlet 120 and the treated airflow blown out of the second air outlet 220 can be blown out in the same direction, and the two can mix, thereby improving the mixing effect and improving the air supply effect.

[0061] Optionally, the first air outlet 120 and the second air outlet 220 are located in the same plane. This allows the heat exchange airflow blown out of the first air outlet 120 to mix better with the treated airflow blown out of the second air outlet 220, improving the air mixing effect.

[0062] Optionally, the height of the first air outlet 120 is the same as the height of the second air outlet 220. This allows the heat exchange airflow blown out of the first air outlet 120 to mix better with the treated airflow blown out of the second air outlet 220, improving the air mixing effect.

[0063] Optionally, the flow area of ​​the first air outlet 120 is larger than that of the second air outlet 220. Since the first air outlet 120 is connected to the heat exchange channel 130 within the first column housing 100, and the first air outlet 120 blows out heat exchange airflow, and since temperature regulation in the indoor environment relies on this heat exchange airflow, setting the air outlet area of ​​the first air outlet 120 to be larger than that of the second air outlet 220 improves indoor air quality while ensuring effective temperature regulation.

[0064] Optionally, a guide vane is provided inside the first air outlet 120. Under the action of the guide vane, the air outlet direction of the first air outlet 120 can be shifted towards the second air outlet 220. In this way, guided by the guide vane, the heat exchange airflow blown out of the first air outlet 120 is shifted towards the treated airflow blown out of the second air outlet 220. The heat exchange airflow blows onto the air curtain formed by the second air outlet 220, and the two can be further mixed to improve the mixing effect.

[0065] For example, the air guide plate is the air guide plate mechanism used in the air outlet of an existing air conditioner, which will not be described in detail here.

[0066] Optionally, an evaporative cooling pad 500 is provided inside the air handling duct 230, which blocks the second air outlet 220. In this way, the evaporative cooling pad 500 provides a humidifying function. The airflow blown out of the second air outlet 220 passes through the evaporative cooling pad 500, accelerating the evaporation of water in the evaporative cooling pad 500. The evaporated water vapor enters the indoor environment with the airflow from the second air outlet 220, thus humidifying the indoor environment.

[0067] Optionally, the evaporative cooling pad 500 is movably positioned within the air handling duct 230, and the evaporative cooling pad 500 can be moved to either block or open the second air outlet 220. In this way, by moving the evaporative cooling pad 500 to block or open the second air outlet 220, the airflow blown from the second air outlet 220 can be humidified. This improves indoor air quality while flexibly meeting the user's air handling needs.

[0068] It is understandable that the position where the evaporative cooling pad 500 moves to open the second air outlet 220 means that the evaporative cooling pad 500 no longer blocks the second air outlet 220, rather than that the second air outlet 220 was in a closed state before the evaporative cooling pad 500 moves. The opening and closing of the second air outlet 220 is related to the panel set on the housing, and the opening and closing state of the second air outlet 220 is controlled by the movement of the panel.

[0069] Optionally, the air conditioner also includes a water tank 600. The water tank 600 is located in the air handling duct 230 inside the second housing 200 and above the evaporative cooling pad 500, for supplying water to the evaporative cooling pad 500. By supplying water to the evaporative cooling pad 500 through the water tank 600, the evaporative cooling pad 500 is continuously moistened. When the evaporative cooling pad 500 moves to a position blocking the second air outlet 220, the airflow from the second air outlet 220 accelerates the evaporation of water from the evaporative cooling pad 500, improving the humidification effect. Positioning the water tank 600 above the evaporative cooling pad 500 allows the water in the water tank 600 to drip naturally onto the evaporative cooling pad 500 using gravity, eliminating the need for a water pump or similar structure and reducing costs.

[0070] Optionally, the side wall of the second column housing 200 is provided with an inspection port corresponding to the position of the water tank 600, and the inspection port is provided with a removable panel. In this way, the water tank 600 can be inspected and maintained through the inspection port by removing the panel, without disassembling the water tank 600, thus improving the maintenance efficiency of the water tank 600.

[0071] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner, characterized in that, include: The first column shell (100) has a first return air inlet (110) and a first air outlet (120) on its side wall. The interior of the first column shell (100) defines a heat exchange channel (130). The first return air inlet (110) and the first air outlet (120) are both connected to the heat exchange channel (130). The second column housing (200) is disposed on one side of the first column housing (100). The side wall of the second column housing (200) is provided with an air inlet (210) and a second air outlet (220). An air handling channel (230) is defined inside the second column housing (200). The air inlet (210) and the second air outlet (220) are both connected to the air handling channel (230).

2. The air conditioner according to claim 1, characterized in that, Also includes: The base (300), the first column shell (100), and the second column shell (200) are all located on the upper side of the base (300).

3. The air conditioner according to claim 2, characterized in that, The base (300) defines an installation cavity (310), and an air handling unit (400) is provided inside the installation cavity (310). The side wall of the air handling unit (400) is provided with a fresh air inlet (410), a second return air inlet (420) and an exhaust air outlet (430). The fresh air inlet (410) is connected to the outdoor environment, the second return air inlet (420) is connected to the indoor environment, and the exhaust air outlet (430) is connected to the air inlet (210).

4. The air conditioner according to claim 3, characterized in that, The upper side wall of the air handling unit (400) is equipped with a fan (440), the air inlet of the fan (440) is connected to the air outlet (430), and the air outlet of the fan (440) is connected to the air inlet (210).

5. The air conditioner according to claim 1, characterized in that, The first column shell (100) and the second column shell (200) are arranged side by side, and the first column shell (100) and the second column shell (200) have the same height.

6. The air conditioner according to claim 5, characterized in that, The first air outlet (120) and the second air outlet (220) are respectively opened on the side wall of the first column shell (100) and the second column shell (200).

7. The air conditioner according to claim 6, characterized in that, The first air outlet (120) and the second air outlet (220) are located in the same plane.

8. The air conditioner according to claim 6, characterized in that, The first air outlet (120) has an air guide plate on its inner side. Under the action of the air guide plate, the air outlet direction of the second air outlet (220) can be shifted toward the first air outlet (120).

9. The air conditioner according to any one of claims 1 to 8, characterized in that, The air handling duct (230) is equipped with a wet curtain (500) inside, which blocks the second air outlet (220).

10. The air conditioner according to any one of claims 1 to 8, characterized in that, The flow area of ​​the first air outlet (120) is larger than that of the second air outlet (220).

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