CN106440238B

CN106440238B - Top air outlet vertical air conditioner and control method thereof

Info

Publication number: CN106440238B
Application number: CN201610933319.9A
Authority: CN
Inventors: 叶海林
Original assignee: Midea Group Co Ltd; Wuhu Meizhi Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Wuhu Meizhi Air Conditioning Equipment Co Ltd
Priority date: 2016-10-31
Filing date: 2016-10-31
Publication date: 2022-04-12
Anticipated expiration: 2036-10-31
Also published as: CN106440238A

Abstract

The invention provides a top air-out vertical air conditioner, which comprises a front air outlet positioned at the front part of the top air-out vertical air conditioner, a shell, a heat exchanger and a front air-out assembly, wherein the heat exchanger and the front air-out assembly are arranged in the shell; the top air outlet assembly is arranged at the top of the top air outlet vertical air conditioner and used for discharging a part of air flow in the shell after heat exchange of the heat exchanger from the top. The air conditioner not only has the traditional front air outlet function, but also has the air outlet function at the top, so that part of air flow entering the air conditioner body after heat exchange is discharged from the top, and the air exhaust quantity from the front of the air conditioner body is reduced, thereby realizing the purpose that the air conditioner does not feel uncomfortable such as overcooling, overheating and the like when directly blowing on the premise of ensuring that the air conditioner has enough air quantity when refrigerating and heating indoor air. The invention also provides a method for controlling the top air outlet vertical air conditioner.

Description

Top air outlet vertical air conditioner and control method thereof

Technical Field

The invention relates to the technical field of air conditioners, in particular to a top air outlet vertical air conditioner and a control method thereof.

Background

Currently, an air conditioner, which is a kind of home appliance, has been gradually applied to various general households. The air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit is also provided with a vertical air conditioner and a wall-mounted air conditioner, and the vertical air conditioner is also called a cabinet air conditioner. In the vertical air conditioner, the air outlet is generally positioned at the front part of the machine body, some air outlets are directly communicated with the inside and the outside of the machine body, and some air outlets are externally provided with a switch door which is opened when in use and closed when not in use, thus playing a dustproof role. However, most of the existing vertical air conditioners are only provided with the air outlet in the front of the air conditioner body, so that only front air outlet can be performed regardless of refrigeration and heating, the function is single, and meanwhile, cold air or hot air is directly blown out from the front air outlet of the air conditioner and blown to the body of an indoor user, so that the user can feel too cold or too hot, the user feels uncomfortable, and the use experience of the user is influenced.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to ensure that the air conditioner has a sufficient air volume when cooling or heating the indoor air and does not cause a user to feel uncomfortable feeling such as supercooling or overheating during the direct blowing.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a floor air conditioner, which not only has a conventional front air outlet function, but also has an air outlet function at the top thereof, so that a part of the air flow entering the air conditioner body after heat exchange is discharged from the top, thereby reducing the amount of air discharged from the front of the air conditioner body, and thus, on the premise of ensuring that the air conditioner has sufficient air volume when cooling and heating the indoor air, the discomfort of supercooling, overheating, etc. caused by direct blowing is not caused to the user.

The technical scheme for solving the technical problems is as follows: a top air-out vertical air conditioner comprises a front air outlet positioned at the front part of the top air-out vertical air conditioner, a shell, a heat exchanger and a front air-out assembly which are arranged in the shell, and also comprises a top air-out assembly and a flow guide assembly; the top air outlet assembly is arranged at the top of the top air outlet vertical air conditioner and is used for discharging a part of air flow in the shell after heat exchange through the heat exchanger from the top; the air guide assembly is of a cavity structure with an open bottom, an air outlet is formed in the front end of the air guide assembly, the air guide assembly is mounted on the upper portion of the top air-out assembly, and the airflow discharged by the top air-out assembly penetrates through the cavity structure of the air guide assembly and then is discharged from the air outlet of the air guide assembly.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the water conservancy diversion subassembly includes roof and water conservancy diversion chamber, the roof closing cap in the top in water conservancy diversion chamber and rather than fixed connection, the water conservancy diversion chamber is the open hollow structure of lower extreme to the front end is equipped with the air outlet, the air outlet is grid structure or is equipped with wind-guiding blade, the open edge of lower extreme in water conservancy diversion chamber with casing top fixed connection to form inclosed wind-guiding passageway.

Further, the lower end of the flow guide cavity is of an inward closing structure.

Furthermore, a guide plate is arranged in the guide cavity, the guide plate extends from the bottom of the rear side of the guide cavity to the upper part of the front side, and air flow discharged from the top air-out assembly can be guided by the guide plate and then discharged from the air outlet at the front end of the guide cavity.

Further, the guide plate is in an arc shape bending upwards.

Further, the flow guide assembly further comprises a flow guide ring, the flow guide ring is in a thin-wall circular ring shape, mounting holes are formed in the upper end and the lower end of the flow guide ring, the lower end of the flow guide cavity is fixedly connected with the upper end of the flow guide ring through screws, and the lower end of the flow guide ring is fixedly connected with the shell through screws.

Further, the top air-out component comprises a fan, the fan is installed at the top of the shell, and an air outlet of the fan faces upwards.

Further, a sealing partition plate is arranged between the fan and the flow guide assembly, the sealing partition plate is arranged at the upper part of the shell, and the periphery of the sealing partition plate is attached to the shell in a sealing manner; the sealing partition plate is provided with a flow guide hole matched with the air outlet of the fan, and the flow guide hole is right opposite to the air outlet of the fan.

Further, the air exit periphery of fan is equipped with one or more screw hole, sealed baffle the water conservancy diversion hole periphery be equipped with the mounting hole that the screw hole position corresponds, the air exit of fan pass through the screw with sealed baffle's downside fixed connection.

Further, the top air-out component also comprises a mounting bracket with a through hole in the middle, the mounting bracket is fixed between the fan and the heat exchanger, and the fan is fixedly mounted on the mounting bracket through screws.

Furthermore, the top-outlet vertical air conditioner also comprises a cross-flow wind wheel arranged in the shell and used for discharging airflow from the front air outlet, and an air outlet frame arranged at the front part of the top-outlet vertical air conditioner, wherein the front air outlet is arranged on the air outlet frame.

The technical scheme of the invention has the beneficial effects that the top air outlet assembly is arranged at the top of the indoor unit of the vertical air conditioner, and partial air flow in the shell after heat exchange by the heat exchanger can be discharged from the top of the vertical air conditioner by utilizing the top air outlet assembly, while the heat exchanger in the air conditioner is not increased. The whole air conditioner equivalently comprises two air outlet systems, one air outlet system is a traditional front air outlet system, the other air outlet system is a top air outlet assembly, and the two air outlet systems share one heat exchanger. Therefore, the top air outlet assembly can be utilized to split the air volume which can only be discharged from the front air outlet originally into a part and discharge the part from the top, the air volume required for heating and refrigerating a room is not reduced, the air discharged from the front air outlet can be blown to a user, the supercooling and overheating feeling can not be generated, and the user experience is greatly improved. In addition, the air flow is discharged to a high position by the top air outlet assembly, heat exchange circulation of air in a room is facilitated, particularly in the refrigeration process, the cold air sinks due to the fact that the density of the cold air is higher than that of hot air, and the upward discharge of the cold air is more beneficial to heat exchange of the air in the room. In addition, the top air outlet assembly can be covered by the flow guide assembly arranged on the upper part of the top air outlet assembly and the flow guide assembly is of a cavity structure with an open bottom, a top air outlet channel is formed by the flow guide assembly and the top air outlet assembly after the flow guide assembly is arranged on the shell, and the airflow discharged by the top air outlet assembly is discharged from an air outlet of the flow guide assembly after passing through the cavity structure of the flow guide assembly. This water conservancy diversion subassembly has the water conservancy diversion effect, can carry out once the water conservancy diversion with the air current of top air-out subassembly exhaust and then change the flow direction according to predetermined direction to satisfy user's multiple demand, further reinforcing user experience effect simultaneously.

The invention also provides a control method of the top air outlet vertical air conditioner, which comprises the following steps:

s1, starting the air conditioner and selecting an automatic operation mode;

s2, when the temperature detection device detects that the current room temperature is greater than a preset temperature value, controlling the air conditioner to operate in a refrigeration mode, simultaneously starting the front air outlet assembly and the top air outlet assembly to operate, and simultaneously starting the humidity detection device to detect the current humidity;

if the humidity detection device detects that the current air humidity is smaller than a preset humidity range, the heat exchanger is controlled to operate at an increased temperature, the frequency of the compressor is reduced, and the front air outlet assembly and the top air outlet assembly continue to operate simultaneously; if the current air humidity is detected to be larger than the preset humidity range value, controlling the heat exchanger to reduce the temperature and operate, simultaneously increasing the frequency of a compressor, closing the front air outlet assembly, and continuing to operate the top air outlet assembly;

and S3, when the temperature detection device detects that the current room temperature is less than a preset temperature value, controlling the air conditioner to operate in a heating mode, simultaneously starting the front air-out assembly and the top air-out assembly to operate, and controlling the front air-out assembly to close or reduce the air volume to operate after the room temperature rises to the preset temperature value.

Further, the preset humidity range value is 45% -70%, and in the humidity range, the human body is most comfortable.

Further, S2, when the humidity detection device detects that the current air humidity is smaller than the preset humidity range, controlling the heat exchanger to operate at 1.5-2.5 ℃ and simultaneously reducing the frequency of the compressor; when the humidity detection device detects that the current air humidity is larger than a preset humidity range value, the heat exchanger is controlled to reduce the temperature to 1.5-2.5 ℃ for operation, meanwhile, the frequency of the compressor is improved, and the front air outlet assembly is closed. The heat exchanger is increased or reduced within the range of 1.5-2.5 ℃ according to the requirement, the influence on the adjustment of the air temperature is not caused, and the dehumidification requirement can be met.

When the user uses the vertical air conditioner, in order to improve the intelligent degree of the air conditioner, an automatic operation mode is set, the user can select the mode when the air conditioner is just started, and in the mode, the air conditioner can automatically select a cooling or heating mode according to the current room temperature without selecting any more, so that the requirement of one-key operation of the user is met.

When the temperature detection device detects that the current room temperature is greater than the preset temperature value, the air conditioner is controlled to operate in a refrigeration mode, and the humidity needs to be adjusted in the refrigeration mode. The front air outlet assembly and the top air outlet assembly are simultaneously started to operate, and a humidity detection device is simultaneously started to detect the current humidity;

if the humidity detection device detects that the current air humidity is smaller than the preset humidity range, the indoor space is too dry, the dehumidification capacity of the air conditioner needs to be reduced, the heat exchanger is controlled to operate at the increased temperature, the frequency of the compressor is reduced, and the front air outlet assembly and the top air outlet assembly continue to operate simultaneously; if the current air humidity is detected to be larger than the preset humidity range value, the indoor space is too humid, the dehumidification amount of the air conditioner needs to be increased, the heat exchanger is controlled to operate at a reduced temperature, the frequency of the compressor is increased, the front air outlet assembly is closed, and the top air outlet assembly continues to operate;

when the temperature detection device detects that the current room temperature is smaller than a preset temperature value, the air conditioner is controlled to operate in a heating mode, the front air outlet assembly and the top air outlet assembly are simultaneously started to operate, and when the room temperature rises to the preset temperature value, the front air outlet assembly is controlled to be closed to operate or reduce the air volume to operate.

Under the heating mode, generally be winter, the air is generally comparatively dry, after indoor temperature reached preset temperature, because hot-air can rise, can close top air-out subassembly, and preceding air-out subassembly continues the operation. Therefore, energy can be saved and consumption can be reduced to the maximum extent, and the user feels more comfortable.

Drawings

Fig. 1 is a schematic perspective view of an indoor unit of a floor air conditioner according to the present invention;

fig. 2 is a schematic front view of an indoor unit of the floor air conditioner shown in fig. 1;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;

fig. 4 is a schematic view of an indoor unit of a floor air conditioner shown in fig. 1, which is disassembled integrally;

FIG. 5 is a schematic view of the disassembled structure of the diversion assembly;

FIG. 6 is a front view of the deflector assembly after assembly;

fig. 7 is a schematic sectional view taken along the direction B-B in fig. 6.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the air conditioner comprises a door switch, a door 2, an air outlet frame, a door 3, a volute 4, a shell 5, a heat exchanger 6, a fan 7, a mounting support 8, a sealing partition plate 11, a grid structure 12, a top plate 14, a mounting rib plate 15, a flow guide ring 16, a flow guide cavity 21, a front air outlet 61, an air outlet 81, a flow guide hole 161, a flow guide plate 265 and a flow guide assembly.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 7, fig. 1 is a schematic perspective view of an indoor unit of a floor air conditioner according to the present invention; fig. 2 is a schematic front view of an indoor unit of the floor air conditioner shown in fig. 1; FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2; fig. 4 is a schematic view of an indoor unit of a floor air conditioner shown in fig. 1, which is disassembled integrally; FIG. 5 is a schematic view of the disassembled structure of the diversion assembly; FIG. 6 is a front view of the deflector assembly after assembly; fig. 7 is a schematic sectional view taken along the direction B-B in fig. 6.

The invention provides a top air-out vertical air conditioner, which comprises a front air outlet 21 positioned at the front part of the top air-out vertical air conditioner, a shell 4, a heat exchanger 5 and a front air-out assembly which are arranged inside the shell 4, and also comprises a top air-out assembly and a flow guide assembly; the top air outlet assembly is arranged at the top of the top air outlet vertical air conditioner and is used for discharging a part of air flow in the shell 4 after heat exchange by the heat exchanger 5 from the top; the air guide assembly is of a cavity structure with an open bottom, an air outlet is formed in the front end of the air guide assembly, the air guide assembly is mounted on the upper portion of the top air-out assembly, and the airflow discharged by the top air-out assembly penetrates through the cavity structure of the air guide assembly and then is discharged from the air outlet of the air guide assembly.

The casing 4 is generally a split structure, and includes a rear casing and a front casing, which are fastened to each other and mounted on the base to form a main structure of the air conditioner. An air inlet is arranged at the rear part of the rear box body, and a heat exchanger 5 is arranged inside the shell 4 and is arranged on a heat exchanger bracket. The front air outlet assembly generally mainly comprises a driving motor, a cross-flow wind wheel (not shown in the figure), a volute 3 and a volute tongue (not shown in the figure), wherein the cross-flow wind wheel is driven by the driving motor to suck air outside the machine body from an air inlet at the rear end of the shell 4, and after heat exchange is carried out through a heat exchanger, all air flow is sent out from a front air outlet 21, so that the purposes of refrigerating and heating are achieved. In the invention, under the condition of keeping the front air outlet unchanged, a top air outlet assembly is arranged above the heat exchanger, so that a part of air flow in the shell 4 after heat exchange by the heat exchanger 5 can be discharged from the top of the vertical air conditioner, and the other part of air flow is still discharged from the front air outlet. Many current top air-out adopt independent air duct system, and the air duct system who goes out the air with preceding is separated, adopts the form of two heat exchangers even, so not only can increase the cost of manufacturing, but also can increase the degree of difficulty of assembly. The invention is an integrated air duct system, is more stable, better for the system, and simple to install, and the top air outlet and the front air outlet share the same heat exchanger, thus the cost is lower.

In a preferred embodiment, the flow guiding assembly includes a top plate 12 and a flow guiding cavity 16, the top plate 12 covers the top of the flow guiding cavity 16 and is fixedly connected with the flow guiding cavity 16, the top plate 12 and the flow guiding cavity 16 can also be integrally formed, the flow guiding cavity 16 is a hollow structure with an open lower end, and an air outlet is arranged at the front end, the air outlet is a grid structure 11 or is provided with a wind guiding blade, the grid structure 11 is shown as being adopted, and the flow guiding assembly is simple, elegant and easy to manufacture and install. Since the air conditioner is generally placed in a corner of a room, the grill structure 11 does not have to be formed over the entire circumference, but only in a certain angle range at a front portion, i.e., in a range of about 120 ° at the front portion as shown in the drawing. The edge of the lower end opening of the flow guide cavity 16 is fixedly connected with the top of the shell 4, and a closed air guide channel is formed to prevent air leakage.

In order to facilitate the flow of the air flow, the lower end of the flow guiding cavity 16 is an inward closing structure, the closing structure may be an overall closing from the periphery to the center, or an eccentric closing as shown in the figure, and the closing structure has a larger inward distance at one end and a smaller inward distance at the other end, and is more attractive and elegant in appearance when the closing structure is adopted.

In this embodiment, the diversion cavity 16 is cylindrical, and a diversion plate 161 is disposed inside the diversion cavity, the diversion plate 161 extends from the bottom of the rear side of the diversion cavity 16 to the upper portion of the front side, and is in an arc structure bending upward, and the airflow discharged from the top air outlet assembly can be discharged from the air outlet at the front end of the diversion cavity 16 through diversion of the diversion plate 161. The air flow can be smoothly guided to the air outlet by the curved air deflector 161, as shown by the arrow in fig. 7, that is, the air flow direction. And then the air is discharged into a room to adjust the room temperature, the air guiding efficiency is high, and the noise is low. The baffle 161 may be integrally formed with the baffle cavity 16 or may be separately formed, preferably integrally formed, to facilitate sealing.

The flow guide assembly further comprises a flow guide ring 15, the flow guide ring is in a thin-wall circular ring shape, mounting holes are formed in the upper end and the lower end of the flow guide ring for mounting convenience, the lower end of the flow guide cavity 16 is fixedly connected with the upper end of the flow guide ring 15 through screws, and the lower end of the flow guide ring 15 is fixedly connected with the shell 4 through screws. The deflector ring 15 may be used to adjust the height of the deflector assembly 265 and also facilitate installation of the deflector assembly 265.

The top air outlet assembly comprises a fan 6, the fan 6 is installed at the top of the shell 4, and an air outlet 61 of the fan 6 faces upwards. A sealing partition plate 8 is arranged between the fan 6 and the flow guide assembly, the sealing partition plate 8 is arranged at the upper part of the shell 4, and the periphery of the sealing partition plate 8 is attached and sealed with the shell 4; the sealing partition plate 8 is provided with a diversion hole 81 matched with the air outlet 61 of the fan 6, and the diversion hole 81 is right opposite to the air outlet 61 of the fan 6.

Fan 6 install in the casing 4 and be located the top of heat exchanger 5, fan 6 has inlet scoop and air exit 61, fan 6 can with warp in the casing 4 partial air current after the heat exchanger 5 heat transfer is followed the inlet scoop inhales to discharge the air current through air exit 61. The fan 6 can be a centrifugal fan or a cross flow fan, and the centrifugal fan is small in transverse size and is suitable for a top air outlet mode, so that the fan 6 is preferably centrifugal and is arranged on the top of the shell 4.

The air exit 61 periphery of fan 6 is equipped with one or more screw holes, sealed baffle 8 the water conservancy diversion hole 81 periphery be equipped with the mounting hole that the screw hole position corresponds, the air exit 61 of fan 6 pass through the screw with sealed baffle 8's downside fixed connection. Therefore, the sealing partition plate 8 and the air outlet 61 of the fan 6 can be stably fixed together, vibration noise generated by the action of wind force in work can be prevented, and the air flow can be guided into the flow guide assembly 265 by the fan 6.

The top air-out component further comprises a mounting bracket 7 with a through hole in the middle, the mounting bracket 7 is fixed between the fan 6 and the heat exchanger 5, and the fan 6 is fixedly mounted on the mounting bracket 7 through screws.

In this embodiment, the top-outlet vertical air conditioner is a cross-flow front outlet, and the cross-flow wind wheel is installed on the volute 3 in the housing 4 and is used for discharging airflow from the front outlet 21. The air conditioner is characterized in that an air outlet frame 2 is arranged at the front part of the air conditioner, and a front air outlet 21 is arranged on the air outlet frame 2. And a switch door 1 which can be freely opened and closed is arranged outside the air outlet frame 2.

When the switch door 1 is used, the switch door 1 can be opened through the controller and closed when not used, so that dust or foreign matters are prevented from entering.

s1, starting the air conditioner and selecting an automatic operation mode;

Further, S2, when the humidity detection device detects that the current air humidity is less than the preset humidity range, the controller controls the heat exchanger to increase the temperature by 1.5-2.5 ℃ and simultaneously reduce the frequency of the compressor; when the humidity detection device detects that the current air humidity is larger than a preset humidity range value, the controller controls the heat exchanger to reduce the temperature of 1.5-2.5 ℃ for operation, and meanwhile, the frequency of the compressor is increased, and the front air outlet assembly is closed. The heat exchanger is increased or reduced within the range of 1.5-2.5 ℃ according to the requirement, the influence on the adjustment of the air temperature is not caused, and the dehumidification requirement can be met.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The control method of the top air-out vertical air conditioner is characterized in that the top air-out vertical air conditioner comprises a front air outlet (21) positioned at the front part of the top air-out vertical air conditioner, a shell (4), a heat exchanger (5) arranged inside the shell (4) and a front air-out assembly; the top air outlet assembly is mounted at the top of the top air outlet vertical air conditioner and used for discharging a part of air flow in the shell (4) after heat exchange through the heat exchanger (5) from the top;

the method comprises the following steps:

s1, starting the air conditioner and selecting an automatic operation mode;

if the humidity detection device detects that the current air humidity is smaller than a preset humidity range, the heat exchanger (5) is controlled to operate at a high temperature, the frequency of the compressor is reduced, and the front air outlet assembly and the top air outlet assembly continue to operate simultaneously; if the current air humidity is detected to be larger than the preset humidity range value, controlling the heat exchanger (5) to reduce the temperature and operate, simultaneously increasing the frequency of a compressor, closing the front air outlet assembly, and continuously operating the top air outlet assembly;

and S3, when the temperature detection device detects that the current room temperature is less than a preset temperature value, controlling the air conditioner to operate in a heating mode, simultaneously starting the front air-out assembly and the top air-out assembly to operate, and controlling the top air-out assembly to close or reduce the air volume to operate after the room temperature rises to the preset temperature value.

2. The control method according to claim 1, characterized in that said preset humidity range value is 45% -70%.

3. The control method according to claim 1 or 2, characterized by controlling the heat exchanger (5) to operate at 1.5-2.5 ℃ higher while reducing the frequency of the compressor when the humidity detection means detects that the current air humidity is less than the preset humidity range S2;

when the humidity detection device detects that the current air humidity is larger than a preset humidity range value, the heat exchanger is controlled to reduce the temperature to 1.5-2.5 ℃ for operation, meanwhile, the frequency of the compressor is improved, and the front air outlet assembly is closed.

4. A top-outlet air vertical air conditioner for performing the control method according to any one of claims 1 to 3, further comprising a flow guide assembly;

the air guide assembly is of a cavity structure with an open bottom, an air outlet is formed in the front end of the air guide assembly, the air guide assembly is mounted on the upper portion of the top air-out assembly, and the airflow discharged by the top air-out assembly penetrates through the cavity structure of the air guide assembly and then is discharged from the air outlet of the air guide assembly.

5. The vertical air conditioner with top air outlet according to claim 4, wherein the air guiding assembly comprises a top plate (12) and a air guiding cavity (16), the top plate (12) is covered on the top of the air guiding cavity (16) and is fixedly connected with the air guiding cavity, the air guiding cavity (16) is a hollow structure with an open lower end, an air outlet is arranged at the front end of the air guiding cavity, the air outlet is of a grid structure (11) or is provided with air guiding blades, and the edge of the open lower end of the air guiding cavity (16) is fixedly connected with the top of the casing (4) and forms a closed air guiding channel.

6. The vertical air conditioner with top outlet as claimed in claim 5, wherein the lower end of the diversion chamber (16) is of inward-closing structure.

7. The vertical air conditioner with top outlet according to claim 6, wherein a deflector (161) is disposed inside the deflector chamber (16), the deflector (161) extends from the bottom of the rear side of the deflector chamber (16) to the top of the front side, and the air discharged from the top outlet assembly can be guided by the deflector (161) and then discharged from the air outlet at the front end of the deflector chamber (16).

8. The vertical air conditioner of claim 7, wherein the air deflector (161) is in the shape of an upwardly curved arc.

9. The vertical air conditioner with the top air outlet according to claim 5, wherein the flow guide assembly further comprises a flow guide ring (15), the flow guide ring (15) is in a thin-wall circular ring shape, mounting holes are formed in the upper end and the lower end of the flow guide ring, the lower end of the flow guide cavity (16) is fixedly connected with the upper end of the flow guide ring (15) through screws, and the lower end of the flow guide ring (15) is fixedly connected with the shell (4) through screws.

10. A top outlet vertical air conditioner according to any one of claims 4 to 9, wherein the top outlet assembly comprises a fan (6), the fan (6) is mounted on the top of the casing (4), and an air outlet (61) of the fan (6) faces upwards.

11. A vertical air conditioner with top outlet according to claim 10, characterized in that a sealing partition plate (8) is arranged between the fan (6) and the flow guide assembly, the sealing partition plate (8) is installed on the upper part of the casing (4) and the periphery of the sealing partition plate is attached to the casing (4) for sealing; the air guide plate is characterized in that a guide hole (81) matched with the air outlet (61) of the fan (6) is formed in the sealing partition plate (8), and the guide hole (81) is opposite to the air outlet (61) of the fan (6).

12. A vertical air conditioner with top outlet as defined in claim 11, wherein one or more threaded holes are formed around the air outlet (61) of the fan (6), mounting holes corresponding to the threaded holes are formed around the diversion holes (81) of the sealing partition plate (8), and the air outlet (61) of the fan (6) is fixedly connected with the lower side surface of the sealing partition plate (8) through screws.

13. The vertical air conditioner with top outlet according to claim 11, wherein the top outlet assembly further comprises a mounting bracket (7) with a through hole in the middle, the mounting bracket (7) is fixed between the fan (6) and the heat exchanger (5), and the fan (6) is fixedly mounted on the mounting bracket (7) through screws.

14. The top-outlet air vertical air conditioner according to any one of claims 4 to 9, further comprising a cross-flow wind wheel installed inside the casing (4) for discharging airflow from the front air outlet (21), and an air outlet frame (2) disposed at the front portion of the top-outlet air vertical air conditioner, wherein the front air outlet (21) is disposed on the air outlet frame (2).