CN220624190U - Air conditioner - Google Patents

Abstract

The utility model provides an air conditioner which comprises an outdoor unit, a new air pipe and a heat exchange device. The heat exchange device is provided with an air flow channel, the air flow channel is arranged between the inlet of the new air pipe and the air outlet of the outdoor unit, and the heat exchange device is configured to enable air flow in the heat exchange device to exchange heat with outside air. The air flow discharged from the air outlet of the outdoor unit exchanges heat with the external air through the heat exchange device and then flows into the new air pipe, so that the temperature of the air flow entering the new air pipe is close to the temperature of the outdoor air, the refrigerating/heating efficiency of the air conditioner is improved, and the comfort and experience of a user are improved.

Description

Air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner.

Background

Along with the higher and higher living standard of people, people pursue higher and higher living quality, and the air conditioner is required to have the functions of temperature regulation and fresh air. At present, air conditioners with fresh air exchanging function exist in the market, and the air outlet of part of air conditioner outdoor units is led into a fresh air channel through a pipeline, so that the air supply capacity of the fresh air channel is improved. However, the air conditioner has the problems that the air outlet temperature of the outdoor unit is higher than the outdoor air temperature in the refrigeration state and the air outlet temperature of the outdoor unit is lower than the outdoor air temperature in the heating state, and the fresh air is conveyed indoors to influence the refrigeration/heating effect of the air conditioner, so that the refrigeration/heating efficiency of the air conditioner is reduced, and the use comfort of a user is reduced.

Disclosure of Invention

In view of the above problems, the present utility model has been made to provide an air conditioner that overcomes or at least partially solves the above problems, and can solve the problem that the air outlet temperature of the outdoor unit in a cooling state is higher than the outdoor air temperature, and the air outlet temperature of the outdoor unit in a heating state is lower than the outdoor air temperature, and the cooling/heating effect of the air conditioner is affected after fresh air is delivered indoors, so as to achieve the purpose that the air outlet temperature of the outdoor unit is close to the outdoor air temperature, thereby improving the cooling/heating efficiency of the air conditioner, and improving the comfort and experience of users.

Specifically, the utility model provides an air conditioner, which comprises an outdoor unit and a new air pipe, and further comprises:

a heat exchange device having an air flow passage and configured to exchange heat between an air flow therein and outside air; the air flow channel is arranged between the inlet of the new air pipe and the air outlet of the outdoor unit.

Optionally, the heat exchange device comprises at least one heat exchange pipeline which is bent and extended, and the space in the heat exchange pipeline is an airflow channel; or alternatively, the first and second heat exchangers may be,

the heat exchange device comprises at least one heat exchange pipeline which is bent and extended, and a plurality of radiating fins are arranged on each heat exchange pipeline.

Optionally, a plurality of radiating fins are sequentially arranged along the length direction of the heat exchange pipeline.

Optionally, at least one of the heat exchange lines comprises a plurality of straight tube sections arranged in parallel,

each of the heat radiating fins is perpendicular to the straight tube sections and is used for all the straight tube sections to pass through.

Optionally, the peripheral wall of the heat exchange pipeline is provided with an opening, and the outer end of the opening is positioned at the rear side of the inner end along the flow direction of the air flow in the heat exchange pipeline.

Optionally, the inlet of the air flow channel is smaller than the air outlet of the outdoor unit, and a guide cover is arranged between the inlet of the air flow channel and the air outlet of the outdoor unit.

Optionally, the air guide sleeve covers part or all of the air outlet of the outdoor unit.

Optionally, the air conditioner further includes:

and the switching device is configured to enable the air guide sleeve to move to a position covering the air outlet of the outdoor unit or enable the air guide sleeve to move to the radial outer side of the air outlet of the outdoor unit.

Optionally, the air guide sleeve covers a part of the air outlet of the outdoor unit, an air valve is arranged on the fresh air pipe, and the air valve controls the on-off of the fresh air pipe.

Optionally, the air conditioner further includes:

and the indoor unit comprises an evaporator, and the fresh air pipe is communicated with the upstream side of the evaporator in the indoor unit.

Optionally, a fresh air cavity is defined in the indoor unit, and the indoor unit is provided with a fresh air outlet communicated with the fresh air cavity;

the indoor unit is provided with a heat exchange air outlet, and the heat exchange air outlet and the fresh air outlet are adjacently arranged.

The utility model provides an air conditioner, in the refrigerating process of the air conditioner, the temperature of air flow discharged from an air outlet of an outdoor unit after heat exchange with a condenser is higher than the temperature of outside air, and the temperature is reduced after heat exchange with the outside air through a heat exchange device. In the heating process of the air conditioner, the temperature of the air flow discharged from the air outlet of the outdoor unit after heat exchange with the condenser is lower than the temperature of the outside air, and the temperature of the air flow is increased after heat exchange with the outside air through the heat exchange device. The temperature of the air flow discharged from the air outlet of the outdoor unit is closer to the outdoor temperature after the heat exchange between the heat exchange device and the external air is carried out no matter the air is refrigerated or heated. The heat exchange device is arranged between the air outlet of the outdoor unit and the air inlet of the fresh air pipe, so that air flow exhausted from the air outlet of the outdoor unit exchanges heat with external air through the heat exchange device and then flows into the fresh air pipe, the temperature of the air flow entering the fresh air pipe is close to the temperature of the outdoor air, the refrigerating/heating efficiency of the air conditioner is improved, and the comfort and experience of a user are improved.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic diagram of an operation of an air conditioner according to an embodiment of the present utility model;

FIG. 2 is a schematic block diagram of a heat exchange device according to one embodiment of the present utility model;

fig. 3 is a schematic partial construction view of an air conditioner according to an embodiment of the present utility model;

fig. 4 is a schematic partial structural view of an air conditioner according to an embodiment of the present utility model.

Detailed Description

An air conditioner according to an embodiment of the present utility model will be described with reference to fig. 1 to 4. In the description of the present embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present utility model, the meaning of "plurality" is at least two, for example, two, three, etc., unless explicitly defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as defined in the claims, either permanently connected, removably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

Furthermore, in the description of the present embodiments, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween. That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The main stream air conditioner on the market has a temperature adjusting function, and a new fan is arranged to meet the requirement of users on air quality. However, the new fan and the air conditioner are respectively arranged and respectively provided with a pipeline, so that the installation is inconvenient. The fresh air device in the prior art can be arranged on the indoor unit or the outdoor unit, and outdoor air enters the air inlet of the fresh air device from the fresh air inlet and then enters the room through the air outlet and the fresh air pipe after being pressurized by the fresh air device. The traditional fresh air exchanging air conditioner mostly adopts a blower arranged in an air conditioner outdoor unit, and the motor drives the fan blade to do work to suck the air outside the room into the blower, and the air is sent into the room through a pipeline, so that the purpose of exchanging the fresh air in the area is achieved. But is limited by the internal space structure of the outdoor unit of the air conditioner, the structure size of the blower for changing fresh air is limited, the blowing capacity is not strong, and the blowing process is easy to be interfered by the outside and affects the blowing capacity. Aiming at the problems CN200955813Y, the split air conditioner with the fresh air exchanging function is provided, and the air outlet of the air conditioner outdoor unit is led into a fresh air pipeline, so that the air feeding capability is improved. However, in the refrigeration operation, the air flow temperature of the air outlet of the air conditioner outdoor unit is higher than the outdoor temperature, and in the heating operation, the air flow temperature of the air outlet of the air conditioner outdoor unit is lower than the outdoor temperature, and the air flow is directly conveyed into the room to influence the refrigeration/heating effect of the air conditioner, so that the refrigeration/heating efficiency of the air conditioner is reduced, and meanwhile, the use comfort of a user is reduced.

Fig. 1 is a schematic diagram of an air conditioner according to an embodiment of the present utility model, and according to fig. 1 and referring to fig. 2 to 4, an air conditioner 100 including an outdoor unit 110 and a fresh air duct 130, and further including a heat exchanging apparatus 120 is provided. The heat exchanging device 120 has an air flow passage and is configured to exchange heat between the air flow therein and the outside air. The air flow passage is disposed between the fresh air duct inlet 131 and the air outlet 111 of the outdoor unit.

The air conditioner outdoor unit 110 has an air outlet and a condenser 112, and outdoor air passing through the condenser 112 flows out of the air conditioner outdoor unit 110 through the air outlet. The air flow channel is disposed between the air outlet 111 of the outdoor unit and the air inlet of the new air duct 130, and provides a circulation channel for the air flowing out from the air outlet 111 of the outdoor unit to flow into the new air duct 130. The fresh air pipe 130 is communicated with the indoor space to convey the outdoor fresh air into the indoor space, thereby improving the indoor air quality. The heat exchange device 120 has a heat exchange function, and defines an air outlet channel, so as to promote heat exchange between the air flow in the air flow channel and the external air.

In this embodiment, the working process of the air conditioner 100 is as follows: under the action of the fan of the outdoor unit 110, outdoor air enters the air-conditioning outdoor unit 110 through the air inlet of the outdoor unit 110, and exchanges heat with the condenser 112. The heat-exchanged outdoor air is discharged out of the air-conditioning outdoor unit 110 through the air outlet 111 of the outdoor unit. The outdoor air discharged from the air outlet 111 of the outdoor unit passes through the air flow passage provided between the outdoor unit 110 and the fresh air duct 130, reaches the fresh air duct inlet 131, and enters the fresh air duct 130. There is great pressure differential between the export of new trend pipe import 131 and new trend pipe 130, can make the outdoor new trend of new trend pipe import 131 department flow out from the exit smoothly under the effect of pressure differential, finally flows in indoor. During the process that the outdoor air enters the fresh air duct 130 from the air outlet 111 of the outdoor unit, it passes through the air flow path and heat exchange occurs in the air flow path.

During the cooling process of the air conditioner 100, the temperature of the air flow discharged from the air outlet 111 of the outdoor unit after heat exchange with the condenser 112 is higher than the temperature of the outside air, and the temperature is reduced after heat exchange with the outside air. During the heating process of the air conditioner 100, the temperature of the air flow discharged from the air outlet 111 of the outdoor unit after heat exchange with the condenser 112 is lower than the temperature of the external air, and the temperature is increased after heat exchange with the external air. The temperature of the air flow discharged from the air outlet 111 of the outdoor unit is closer to the outdoor temperature after heat exchange between the heat exchange device 120 and the external air, regardless of cooling or heating.

In this embodiment, the outdoor air can be stably introduced into the room through the air outlet 111 of the outdoor unit by virtue of the air pressure of the air outlet 111 of the outdoor unit, and no fan is required to be arranged in the fresh air pipe 130. The heat exchange device 120 is arranged between the air outlet 111 of the outdoor unit and the air inlet of the fresh air pipe 130, so that the air flow discharged from the air outlet 111 of the outdoor unit exchanges heat with the external air through the heat exchange device 120 and then flows into the fresh air pipe 130, the purpose that the temperature of the air flow entering the fresh air pipe 130 is close to the temperature of the outdoor air can be achieved, the refrigerating/heating efficiency of the air conditioner is further improved, and the comfort and experience of a user are improved.

In some embodiments of the present utility model, as shown in fig. 2, the heat exchanging device 120 includes a heat exchanging pipe extending in a bent manner, and the space in the heat exchanging pipe is an air flow channel.

In this embodiment, the air flow discharged from the air outlet 111 of the outdoor unit passes through the space in the heat exchange pipeline to reach the fresh air inlet 131 and enter the fresh air duct 130. When the air flow passes through the space in the heat exchange pipeline, heat exchange is carried out with the external air outside the heat exchange pipeline.

The heat exchange pipeline is bent, the length of the heat exchange pipeline can be prolonged in a limited space, and the path of airflow flowing through the heat exchange pipeline is prolonged. The fan speed of the indoor unit is fixed, the time for the air flow to flow through the heat exchange pipeline is prolonged, the time for heat exchange with the outside air is prolonged, the heat exchange is more sufficient, and the temperature of the air flow is more close to the temperature of the outside air.

Of course, in some embodiments of the present utility model, the heat exchange device 120 may also include a plurality of heat exchange tubes extending in a bent manner, and the space in the heat exchange tubes is an airflow channel. The plurality may be any integer. In this embodiment, the arrangement of a plurality of heat exchange pipelines can effectively improve heat exchange efficiency.

As shown in fig. 2, in some embodiments of the present utility model, the heat exchanging device 120 includes at least one heat exchanging tube extending in a bent manner, and a plurality of heat dissipating fins 121 are disposed on each heat exchanging tube.

In this embodiment, the heat exchange pipeline is provided with the heat dissipation fins 121, so that the heat exchange area is effectively increased, and the heat exchange efficiency is further improved on the premise of a certain airflow velocity and a certain length of the heat exchange pipeline.

As shown in fig. 2, in some embodiments of the present utility model, a plurality of heat dissipating fins 121 are sequentially disposed along the length direction of the heat exchanging pipe, so that the heat exchanging efficiency at each position of the heat exchanging pipe can be improved. Preferably, the plurality of heat radiating fins 121 are uniformly distributed along the length direction of the heat exchanging pipe.

As shown in fig. 2, in some embodiments of the present utility model, at least one heat exchange tube includes a plurality of straight tube sections 122 arranged in parallel, each fin 121 being perpendicular to the straight tube sections 122 and for all of the straight tube sections 122 to pass through.

In this embodiment, the straight tube section 122 passes through the heat dissipation fins 121 perpendicular thereto, which helps to improve the overall stability of the heat exchange tube, and increases the area of the heat dissipation fins 121, thereby further improving the heat exchange efficiency.

In some embodiments of the utility model, the peripheral wall of the heat exchange tube is provided with an opening, the outer end of which is located at the rear side of the inner end in the flow direction of the air flow in the heat exchange tube.

In this embodiment, the peripheral wall of the heat exchange tube is provided with an opening, and the outer end of the opening is located at the rear side of the inner end. When the air flow flows through the heat exchange pipeline, external air enters the heat exchange pipeline through the opening holes along with the flow of the air flow in the heat exchange pipeline and flows along with the flow of the air in the heat exchange pipeline. In the flowing process, the outside air entering the heat exchange pipeline is mixed with the air flow in the heat exchange pipeline, heat transfer is carried out, the temperature of the air flow in the heat exchange pipeline is promoted to change, and the heat exchange efficiency is improved.

As shown in fig. 3, in some embodiments of the present utility model, an inlet of the air flow channel is smaller than an air outlet 111 of the outdoor unit, and a dome 140 is disposed between the inlet of the air flow channel and the air outlet 111 of the outdoor unit.

In this embodiment, since the inlet of the air flow channel is smaller than the air outlet 111 of the outdoor unit, the air flow entering the inlet of the air flow channel through the air outlet 111 of the outdoor unit has a pressurizing effect, so that the flow velocity of the air flow in the air flow channel is faster, and the flow of the air flow is facilitated. The air guide cover 140 is arranged to collect the air flow discharged from the air outlet 111 of the outdoor unit and make the air flow enter the air flow channel.

In other embodiments of the present utility model, the inlet of the airflow channel is larger than the air outlet 111 of the outdoor unit, and can cover the air outlet 111 of the outdoor unit.

In this embodiment, the inlet of the air flow channel covers the air outlet 111 of the outdoor unit, and the air flow discharged from the air outlet 111 of the outdoor unit enters the air flow channel. This arrangement stabilizes the pressure difference between the connection end of the air flow passage and the air outlet 111 of the outdoor unit and the connection end of the air flow passage and the fresh air pipe inlet 131.

As shown in FIG. 1, in some embodiments of the utility model, the cross-sectional area of the airflow channel is less than the cross-sectional area of the fresh air duct 130.

In this embodiment, when the air flow enters the fresh air duct 130, the air flow enters a flow channel with a larger cross-sectional area from a flow channel with a smaller cross-sectional area. The flow is fixed, the sectional area is enlarged, and the flow velocity of the air flow is correspondingly reduced. And the fresh air speed is slowed down, so that the air outlet speed of the indoor fresh air is not too high.

In some embodiments of the present utility model, the air guide cover 140 covers a portion of the air outlet 111 of the outdoor unit. In this embodiment, the air guide cover 140 covers a portion of the air outlet 111 of the outdoor unit, and a portion of the air discharged from the air outlet 111 of the outdoor unit enters the fresh air duct 130, and the rest of the air is discharged to the atmosphere.

In other embodiments of the present utility model, the air guide cover 140 covers the whole of the air outlet 111 of the outdoor unit. In the present embodiment, the air guide cover 140 covers all of the air outlets 111 of the outdoor unit, and all of the air discharged from the air outlets 111 of the outdoor unit enters the fresh air duct 130, so that the air volume is large.

In some embodiments of the present utility model, the air conditioner 100 further includes a switching device. The switching device is configured to move the guide casing 140 to a position covering the air outlet 111 of the outdoor unit or to move the guide casing 140 to a radial outside of the air outlet 111 of the outdoor unit.

In this embodiment, the switching device may control the position change of the pod 140. When the air guide cover 140 moves to a position covering the air outlet 111 of the outdoor unit, the air flow discharged from the air outlet of the outdoor fan 113 flows into the air flow channel through the air guide cover 140, finally enters the room, and fresh air is delivered to the room. When the air guide cover 140 moves to the radial outer side of the air outlet 111 of the outdoor unit, the air flow discharged from the air outlet of the outdoor fan 113 is directly discharged to the external atmosphere, and no more fresh air flows into the air flow channel through the air guide cover 140, and no more fresh air is conveyed indoors.

Whether the indoor air supply needs fresh air or not determines the change of the relative positions of the air guide cover 140 and the air outlet of the outdoor fan 113. In this embodiment, the switching device can control the relative position of the air outlet of the air guide sleeve 140 and the air outlet of the outdoor fan 113, so as to meet the indoor requirement for fresh air.

In some embodiments of the present utility model, the air guide cover 140 covers the portion of the air outlet 111 of the outdoor unit, and the fresh air duct 130 is provided with an air valve, and the air valve controls the on-off of the fresh air duct 130.

In this embodiment, when the air valve is opened, the fresh air duct 130 is unblocked, and air discharged from the air outlet 111 of the outdoor unit can enter the room through the fresh air duct 130. When the air valve is closed, the fresh air duct 130 is blocked, and air discharged from the air outlet 111 of the outdoor unit cannot enter the room through the fresh air duct 130, but is discharged to the atmosphere through an uncovered portion of the air outlet 111 of the outdoor unit. The on-off of the new air pipe 130 is regulated through the arrangement of the air valve, so that the indoor requirement for the new air is met. The air valve has simple structure and convenient control.

In some embodiments of the present utility model, the air conditioner 100 further includes an indoor unit. The indoor unit includes an evaporator, and the fresh air duct 130 opens to an upstream side of the evaporator in the indoor unit.

In this embodiment, the fresh air duct 130 is led to the upstream side of the evaporator of the indoor unit, so that the outdoor fresh air flowing out of the fresh air duct 130 exchanges heat through the evaporator, and the temperature of the fresh air after heat exchange is closer to the set temperature of the air conditioner 100.

In some embodiments of the present utility model, a fresh air chamber is defined within the indoor unit, and the indoor unit has a fresh air outlet in communication with the fresh air chamber. The indoor unit is provided with a heat exchange air outlet, and the heat exchange air outlet and the fresh air outlet are adjacently arranged.

In the utility model, outdoor fresh air flows out of the indoor unit of the air conditioner through the fresh air outlet, and heat exchange air flows out of the indoor unit through the heat exchange air outlet. The heat exchange air outlet and the fresh air outlet are adjacently arranged. The air flow blown out from the heat exchange air outlet can drag and mix the outdoor fresh air blown out from the fresh air outlet, so as to realize mixed blowing. Improving the wind homogenizing effect.

In some embodiments of the present utility model, the indoor unit may be a wall-mounted indoor unit, which has a simple structure and does not occupy a floor space.

In some embodiments of the present utility model, the indoor unit may be a cabinet indoor unit, which is suitable for a larger space such as a living room.

As shown in fig. 4, in some embodiments of the present utility model, the outdoor unit 110 of the air conditioner includes a humidifying device 150, and the humidifying device 150 is configured to provide moisture to the condenser 112, so that the air flow flowing out from the air outlet 111 of the outdoor unit carries moisture and enters the room through the fresh air duct 130 to humidify the indoor air.

In this embodiment, the humidifying device 150 supplies moisture to the condenser 112, and the air is humidified by the air humidity change by the moisture on the condenser 112 entering the air by the large area volatilization of the condenser 112 under the action of the fan of the outdoor unit 110. The humidified air is discharged from the outdoor unit 110 through the air outlet 111 of the outdoor unit, enters the fresh air duct 130 through the fresh air duct inlet 131, and finally flows into the room to humidify the indoor air.

In this embodiment, the fresh air flowing into the room is humidified and has a certain humidity. After flowing into the room, the indoor air can be humidified, so that the indoor air humidity is changed, and the comfort and experience of a user are improved.

In some embodiments of the present utility model, as shown in fig. 4, a water pan 114 is provided below the condenser 112, and a humidifying device 150 is provided above the condenser 112. The humidifying device 150 is connected with the water pan 114 through a water pipe 160, and a water pump 161 is arranged on the water pipe 160.

In this embodiment, the condensed water in the water pan 114 is delivered to the condenser 112 through the water delivery pipe 160 under the action of the water pump 161, and the condenser 112 is humidified. The arrangement ensures that the condensed water can be repeatedly and effectively utilized for a plurality of times, avoids the loss of the condensed water, and is beneficial to the energy conservation of the air conditioner.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. An air conditioner, including off-premises station and new tuber pipe, its characterized in that still includes:

a heat exchange device having an air flow passage and configured to exchange heat between an air flow therein and outside air; the air flow channel is arranged between the inlet of the new air pipe and the air outlet of the outdoor unit.

2. An air conditioner according to claim 1, wherein,

the heat exchange device comprises at least one heat exchange pipeline which is bent and extended, and the space in the heat exchange pipeline is an airflow channel; or alternatively, the first and second heat exchangers may be,

the heat exchange device comprises at least one heat exchange pipeline which is bent and extended, and a plurality of radiating fins are arranged on each heat exchange pipeline.

3. An air conditioner according to claim 2, wherein,

the heat dissipation fins are sequentially arranged along the length direction of the heat exchange pipeline.

4. An air conditioner according to claim 2, wherein,

at least one of the heat exchange pipelines comprises a plurality of straight pipe sections which are arranged in parallel,

each of the heat radiating fins is perpendicular to the straight tube sections and is used for all the straight tube sections to pass through.

5. An air conditioner according to claim 2, wherein,

the periphery wall of the heat exchange pipeline is provided with an opening, and the outer end of the opening is positioned at the rear side of the inner end along the flow direction of the air flow in the heat exchange pipeline.

6. An air conditioner according to claim 1, wherein,

the inlet of the air flow channel is smaller than the air outlet of the outdoor unit, and a guide cover is arranged between the inlet of the air flow channel and the air outlet of the outdoor unit.

7. The air conditioner according to claim 6, wherein,

the air guide sleeve covers part or all of the air outlet of the outdoor unit.

8. The air conditioner as set forth in claim 7, further comprising:

and the switching device is configured to enable the air guide sleeve to move to a position covering the air outlet of the outdoor unit or enable the air guide sleeve to move to the radial outer side of the air outlet of the outdoor unit.

9. The air conditioner according to claim 7, wherein,

the air guide sleeve covers the air outlet of the outdoor unit, an air valve is arranged on the fresh air pipe, and the air valve controls the on-off of the fresh air pipe.

10. The air conditioner of claim 1, further comprising:

the indoor unit comprises an evaporator, and the fresh air pipe is led to the upstream side of the evaporator in the indoor unit;

a fresh air cavity is defined in the indoor unit, and the indoor unit is provided with a fresh air outlet communicated with the fresh air cavity;

the indoor unit is provided with a heat exchange air outlet, and the heat exchange air outlet and the fresh air outlet are adjacently arranged.