CN104697044A - Air pipe type air conditioner indoor unit and control method thereof - Google Patents

Abstract

The invention discloses an indoor unit of an air duct type air conditioner and a control method thereof. The indoor unit of the air duct type air conditioner comprises a housing, an indoor heat exchanger and an indoor fan. The housing is provided with an air return port and an air outlet. The heater is arranged in the casing, and is located between the air return port and the air outlet. The indoor fan is arranged in the casing on one side of the indoor heat exchanger. The lower air outlet on the lower side wall of the body; the indoor unit also includes an opening and closing mechanism for opening and closing the front air outlet and the lower air outlet. The indoor unit of the air duct type air conditioner of the present invention can have two kinds of air outlet modes: front air outlet and bottom air outlet, so that the front air outlet mode and the lower air outlet mode can be automatically selected according to the air conditioner operation mode, such as selection in cooling and dehumidification modes The front air outlet mode is selected, and the lower air outlet mode is selected in the heating mode, so as to take into account the comfort of the room in both cooling and heating, and realize the best comfort in room air conditioning.

Description

Ducted air conditioner indoor unit and control method thereof

technical field

The invention relates to an air conditioner, in particular to an indoor unit of an air duct type air conditioner and a control method thereof.

Background technique

The existing air duct type air conditioner indoor unit mainly includes a housing, an indoor heat exchanger and an indoor fan, wherein the housing is provided with an air return port and an air outlet, and the indoor heat exchanger and the indoor fan are both arranged in the housing.

According to the different positions of the air outlets, the indoor units of ducted air conditioners can be divided into two types: front air outlet and bottom air outlet. The air outlet of the air duct type air conditioner indoor unit in the front air outlet mode is arranged on the front side wall of the housing. When the air conditioner is running, the wind blown by the indoor fan is directly sent into the room through the front air outlet. The air outlet of the indoor unit of the air duct type air conditioner with the lower air outlet is arranged on the lower side wall of the housing. When the air conditioner is running, the air blown by the indoor fan is directly sent into the room through the lower air outlet.

Due to the low density of hot air during heating, it is easy to float upwards, and the front air outlet method is not easy to blow the hot air to the lower part of the room, so the heating effect is poor; while during cooling, due to the high density of cold air, it is easy to sink, and the downward air outlet method is easy Blowing directly at people makes people feel cold. Therefore, the existing ducted air conditioner indoor unit considers the cooling comfort, but ignores the heating comfort, and considers the heating comfort, ignores the cooling comfort, and cannot take into account the comfort of the room during cooling and heating.

Contents of the invention

In view of the current state of the art above, one of the technical problems to be solved by the present invention is to provide an indoor unit of an air duct type air conditioner, the air outlet method of which can take into account the comfort of the room during cooling and heating, so as to realize room air conditioning. The best comfort ever. Another technical problem to be solved by the present invention is to provide a control method for the indoor unit of the ducted air conditioner.

In order to solve the above-mentioned technical problems, the indoor unit of a ducted air conditioner provided by the present invention includes a housing, an indoor heat exchanger and an indoor fan. The housing is provided with an air return port and an air outlet. The indoor heat exchanger The heater is arranged in the casing, and is located between the air return port and the air outlet, the indoor fan is arranged in the casing on one side of the indoor heat exchanger, and the air outlet includes a The front air outlet on the front side wall of the housing and the lower air outlet provided on the lower side wall of the housing; the indoor unit also includes a function for opening and closing the front air outlet and the lower air outlet the opening and closing mechanism.

In one of the embodiments, the opening and closing mechanism includes a windshield and a windshield drive mechanism, the windshield can rotate around an axis, and has a first rotation position and a second rotation position, when the windshield When the board is in the first rotation position, the windshield closes the lower air outlet, and when the windshield is in the second rotation position, the windshield closes the front air outlet , the wind deflector driving mechanism is used to drive the wind deflector.

In one of the embodiments, the wind deflector further has a third rotation position between the first rotation position and the second rotation position, when the wind deflector is in the third rotation position , the front air outlet and the lower air outlet are simultaneously opened.

In one embodiment, the wind deflector is located in the housing, and the included angle between the first rotation position and the second rotation position is 90°.

In one of the embodiments, the wind deflector drive mechanism includes a synchronous motor and (please supplement).

In one of the embodiments, the opening and closing mechanism includes at least one first guide vane, a first guide vane drive mechanism, at least one second guide vane and a second guide vane drive mechanism, the first guide vane The wind vane is rotatably installed at the front air outlet, and has a third rotation position and a fourth rotation position. When the first wind guide vane is in the third rotation position, the first guide vane The wind vane opens the front air outlet, and when the first wind guide vane is in the fourth rotation position, the first wind guide vane closes the front air outlet, and the first wind guide vane drives The mechanism is used to drive the first wind guide vane; the second wind guide vane is rotatably installed at the lower air outlet, and has a fifth rotation position and a sixth rotation position. When the wind guide vane is at the fifth rotation position, the second wind guide vane opens the lower air outlet; when the second wind guide vane is at the sixth rotation position, the second wind guide vane The blade closes the lower air outlet, and the second wind guide vane driving mechanism is used to drive the second wind guide vane.

In one of the embodiments, the opening and closing mechanism further includes a first air outlet frame and a second air outlet frame, the first air outlet frame is installed at the front air outlet, and the first air guide vanes are Multiple pieces, multiple pieces of the first wind guide blades are installed in the first air outlet frame parallel to each other; the second air outlet frame is installed at the lower air outlet, and the second wind guide blades are A plurality of second wind guide vanes are installed in parallel in the second air outlet frame.

In one of the embodiments, the angle between the third rotation position and the fourth rotation position is 90°, and the angle between the fifth rotation position and the sixth rotation position is 90° .

In one of the embodiments, the indoor unit further includes a front air outlet panel arranged on the front side of the front air outlet, and a first air duct arranged between the front air outlet panel and the front air outlet , a lower air outlet panel arranged below the lower air outlet, and a second air duct arranged between the lower air outlet panel and the lower air outlet.

In one of the embodiments, the cross-sectional shape of the indoor heat exchanger is V-shaped, and the opening direction of the indoor heat exchanger faces the indoor heat exchanger; or the cross-sectional shape of the indoor heat exchanger is It is in the shape of "one", and the indoor heat exchanger is perpendicular to the axial direction of the shell or inclined at a certain angle.

In one of the embodiments, the indoor heat exchanger is arranged on the air suction side or the air outlet side of the indoor fan.

The above-mentioned control method of the indoor unit of the ducted air conditioner provided by the present invention comprises the following steps:

S1. When the air conditioner is turned on and running, acquire the running mode;

S2. Determine the operation mode. If the operation mode is cooling mode, dehumidification mode or air supply mode, control the opening and closing mechanism to open the front air outlet and close the lower air outlet. If the operation mode is In the heating mode, the opening and closing mechanism is controlled to close the front air outlet and open the lower air outlet.

In one of the embodiments, the control method also includes the following steps before step S1:

S3. After the air conditioner is powered on, it is judged whether an instruction for setting the air outlet mode input by the user is received, if yes, then go to step S4, if not, go to the step S1;

S4. Determine the instruction for setting the air outlet mode input by the user. If the instruction for setting the air outlet mode is front air outlet, control the opening and closing mechanism to open the front air outlet and close the lower air outlet. If the instruction for setting the air outlet mode is downward air outlet, control the opening and closing mechanism to close the front air outlet and open the lower air outlet. If the instruction for setting the air outlet mode is two-way air outlet, then control the opening and closing mechanism. The closing mechanism simultaneously opens the front air outlet and the lower air outlet.

Compared with the prior art, the air duct type air conditioner indoor unit of the present invention has a front air outlet, a lower air outlet and an opening and closing mechanism for opening and closing the front air outlet and the lower air outlet, so the air conditioner indoor unit can have There are two air outlet modes, front air outlet and bottom air outlet, so that the front air outlet and bottom air outlet can be automatically selected according to the operation mode of the air conditioner. For example, the front air outlet is selected in cooling and dehumidification mode, and the bottom outlet is selected in heating mode. The wind mode takes into account the comfort of the room in both cooling and heating, and realizes the best comfort in room air conditioning.

In the control method of the indoor unit of the ducted air conditioner of the present invention, the cooling and dehumidification mode selects the front air outlet by default, and the heating mode selects the bottom air outlet by default, fully considering the comfort of the room in terms of cooling and heating.

Description of drawings

Figures 1a, 1b and 1c are cross-sectional views of the indoor unit of the ducted air conditioner in Embodiment 1 of the present invention, wherein Figure 1a shows the state when the front air outlet is open and the lower air outlet is closed, and Figure 1b shows the state when the front air outlet is closed , the state when the lower air outlet is opened, and Fig. 1c is the state when the front air outlet and the lower air outlet are opened;

Fig. 2 is a cross-sectional view of the indoor unit of the ducted air conditioner in Embodiment 2 of the present invention;

Fig. 3 is a cross-sectional view of the indoor unit of the ducted air conditioner in Embodiment 3 of the present invention;

4 is a cross-sectional view of the indoor unit of the ducted air conditioner in Embodiment 4 of the present invention;

Figures 5a, 5b and 5c are cross-sectional views of the indoor unit of the ducted air conditioner in Embodiment 5 of the present invention, wherein Figure 5a shows the state when the front air outlet is open and the lower air outlet is closed, and Figure 5b shows the state when the front air outlet is closed , the state when the lower air outlet is opened, and Fig. 5c is the state when the front air outlet and the lower air outlet are opened;

Figures 6a and 6b are schematic structural views of the first air outlet frame with the first wind guide vanes, wherein Figure 6a is the state when the first wind guide vanes are opened, and Figure 6b is the state when the first wind guide vanes are closed;

Fig. 7 is a flowchart of a control method for an indoor unit of a ducted air conditioner in one embodiment of the present invention.

Explanation of reference numerals: 10, housing; 11, front side wall of housing; 12, front air outlet; 13, lower side wall of housing; 14, lower air outlet; 15, lower return air outlet; 16, rear side of housing 17. Rear return air outlet; 20. Indoor heat exchanger; 30. Indoor fan; 40. Opening and closing mechanism; 41. Windshield; 42. Windshield driving mechanism; 45. First air outlet frame; 46. 47. Second air outlet frame; 48. Second air guide blade; 51. Front air outlet panel; 53. Lower air outlet panel; 55. Return air panel; 61. First air duct; 63 , the second air duct; 71, the ceiling.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Embodiment one

Figures 1a and 1b are cross-sectional views of the indoor unit of the ducted air conditioner in Embodiment 1 of the present invention. As shown in the figure, the indoor unit of the ducted air conditioner in this embodiment includes: a housing 10, an indoor heat exchanger 20, an indoor fan 30 and an opening and closing mechanism 40, wherein the housing 10 is provided with an air return port . The front air outlet 12 and the lower air outlet 14, the front air outlet 12 is arranged on the front side wall 11 of the housing, and the lower air outlet 14 is arranged on the front part of the lower side wall 13 of the housing. Preferably, there are two air return ports, including a lower air return port 15 disposed on the rear portion of the lower side wall 13 of the housing and a rear air return port 17 disposed on the rear side wall 16 of the housing. The indoor heat exchanger 20 is arranged in the housing 10 and is located between the air return port and the front air outlet 12 and the lower air outlet 14. The cross section of the indoor heat exchanger 20 in this embodiment The shape is V-shaped, and the opening direction of the indoor heat exchanger 20 faces the indoor heat exchanger 20 . The indoor fan 30 is arranged in the housing 10 on one side of the indoor heat exchanger 20. Preferably, the indoor fan 30 in this embodiment is a centrifugal fan, and the indoor heat exchanger 20 is located at the side of the indoor fan. 30 on the outlet side.

The opening and closing mechanism 40 is used to open and close the front air outlet 12 and the lower air outlet 14 . The opening and closing mechanism 40 in this embodiment includes a windshield 41 and a windshield driving mechanism 42. The windshield 41 can rotate around an axis and has a first rotation position and a second rotation position. When the windshield When the plate 41 is in the first rotation position (see Fig. 1a), the windshield 41 closes the lower air outlet 14, the front air outlet 12 is opened, and the wind blown by the indoor fan 30 is directly discharged from the front. The air outlet 12 is sent into the room; when the windshield 41 is in the second rotation position (see Fig. 1b), the windshield 41 closes the front air outlet 12, and the lower air outlet 14 is opened, by The wind blown out by the indoor fan 30 is directly sent into the room by the lower air outlet 14 . Preferably, the wind deflector 41 also has a third rotation position between the first rotation position and the second rotation position, when the wind deflector 41 is in the third rotation position, The front air outlet 12 and the lower air outlet 14 are opened simultaneously. Preferably, the wind deflector 41 is located in the housing 10 , and the included angle between the first rotation position and the second rotation position is 90°. The wind deflector driving mechanism 42 is used to drive the wind deflector 41 . Preferably, the driving mechanism includes a synchronous motor (not shown in the figure) and a connecting rod (not shown in the figure), and the synchronous motor drives the connecting rod to rotate the wind deflector.

It can be seen that since the air duct air conditioner indoor unit of this embodiment has the front air outlet 12, the lower air outlet 14 and the opening and closing mechanism 40 for opening and closing the front air outlet 12 and the lower air outlet 14, the air conditioner The indoor unit can have two air outlet modes: front air outlet and bottom air outlet. In this way, the front air outlet and bottom air outlet can be automatically selected according to the air conditioner operating mode. For example, the front air outlet is selected in the cooling and dehumidification mode, and the heating mode The bottom air outlet mode is selected from time to time, so as to take into account the comfort of the room in both cooling and heating, and realize the best comfort in room air conditioning.

Preferably, the indoor unit further includes a front air outlet panel 51, a lower air outlet panel 53 and a return air panel 55, the front air outlet panel 51 is arranged on the front side of the front air outlet 12, and the front air outlet panel 51 The air outlet of the lower air outlet panel 53 communicates with the front air outlet 12 through the first air pipe 61, the lower air outlet panel 53 is arranged below the lower air outlet 14, and the air outlet of the lower air outlet panel 53 and the lower air outlet 14 pass through the first air outlet. The two air pipes 63 are connected, and the return air panel 55 is arranged below the lower return air outlet 15 . The indoor unit of the ducted air-supply air conditioner is hoisted on the indoor ceiling 71, and the user performs partial ceiling according to the decoration style, and the air outlet panel, the lower air outlet panel 53 and the return air panel 55 are installed on the ceiling. The front air outlet panel 51, the lower air outlet panel 53 and the return air panel 55 can choose commonly used panels in engineering installation, or the front air outlet panel 51, lower air outlet panel 53 and return air panel 55 selected by the air conditioner manufacturer. .

Embodiment two

As shown in FIG. 2 , the structure of the indoor unit of the ducted air conditioner in this embodiment is generally the same as that in Embodiment 1, except that the indoor heat exchanger 20 is located on the suction side of the indoor fan 30 .

Embodiment three

As shown in Figure 3, the structure of the indoor unit of the ducted air conditioner in this embodiment is generally the same as that in Embodiment 1, the difference is that the cross-sectional shape of the indoor heat exchanger 20 is in the shape of a "one", The indoor heat exchanger 20 is inclined at a certain angle with the axial direction of the casing 10 .

Embodiment four

As shown in Figure 4, the structure of the indoor unit of the ducted air conditioner in this embodiment is generally the same as that in Embodiment 1, the difference is that the cross-sectional shape of the indoor heat exchanger 20 is in the shape of a "one", The indoor heat exchanger 20 is perpendicular to the axial direction of the casing 10 .

Embodiment five

As shown in Figures 5a and 5b, the structure of the indoor unit of the ducted air conditioner in this embodiment is generally the same as that in Embodiment 1, except that the opening and closing mechanism 40 includes at least one first wind guide vane 46, The first wind guide vane 46 driving mechanism (not shown in the figure), at least one second wind guide vane 48 and the second wind guide vane 48 driving mechanism (not shown in the figure), the first wind guide vane 46 can It is rotatably installed at the front air outlet 12, and has a third rotation position and a fourth rotation position, when the first wind guide vane 46 is in the third rotation position (see Fig. 5a, 6a) , the first wind guide vane 46 opens the front air outlet 12, when the first wind guide vane 46 is in the fourth rotation position (see Fig. 5b, 6b), the first wind guide vane 46 to close the front air outlet 12, the driving mechanism of the first wind guide vane 46 is used to drive the first wind guide vane 46; the second wind guide vane 48 is installed on the lower at the air outlet 14, and has a fifth rotation position and a sixth rotation position, when the second wind guide vane 48 is in the fifth rotation position (see Figure 5b), the second wind guide vane 48 will The lower air outlet 14 is opened; when the second wind guide vane 48 is in the sixth rotational position (see Fig. 5a), the second air guide vane 48 closes the lower air outlet 14, and the first The driving mechanism of the second wind guide vane 48 is used to drive the second wind guide vane 48 .

In the opening and closing mechanism 40 in this embodiment, when the first wind guide vane 46 is at the third rotation position and the second wind guide vane 48 is at the sixth rotation position, the front air outlet 12 open, the lower air outlet 14 is closed, and the wind blown by the indoor fan 30 is directly sent into the room through the front air outlet 12; When the wind blade 48 is in the fifth rotation position, the front air outlet 12 is closed, the lower air outlet 14 is opened, and the wind blown by the indoor fan 30 is directly sent into the room through the lower air outlet 14; When the wind vane 46 is at the third rotation position and the second wind guide vane 48 is at the fifth rotation position, the front air outlet 12 and the lower air outlet 14 are opened simultaneously.

Preferably, the opening and closing mechanism 40 further includes a first air outlet frame 45 and a second air outlet frame 47, the first air outlet frame 45 is installed at the front air outlet 12, and the first air guide The blades 46 are multi-pieces, and the first wind guide blades 46 are installed parallel to each other in the first air outlet frame 45; the second air outlet frame 47 is installed in the lower air outlet 14, so The second wind guiding vanes 48 are multiple pieces, and the multiple second wind guiding vanes 48 are installed in the second air outlet frame 47 in parallel.

Preferably, the angle between the third rotation position and the fourth rotation position is 90°, and the angle between the fifth rotation position and the sixth rotation position is 90°.

The present invention also provides a method for controlling the indoor unit of the ducted air conditioner in one of the above embodiments. As shown in FIG. 7, the control method includes the following steps:

Step S1, when the air conditioner is turned on and running, acquire the running mode;

Step S2. Determine the operation mode. If the operation mode is cooling mode, dehumidification mode or air supply mode, control the opening and closing mechanism 40 to open the front air outlet 12 and close the lower air outlet 14. If If the operating mode is heating mode, the opening and closing mechanism 40 is controlled to close the front air outlet 12 and open the lower air outlet 14 .

When cooling, due to the high density of cold air, it is easy to sink, and the downward air outlet method is easy to blow directly on people to make people feel cold. When heating, due to the low density of hot air, it is easy to float upwards. The heating effect of blowing to the lower part of the room is poor. This intelligent air outlet method can solve the problem of poor air conditioning comfort caused by a single air outlet method.

Preferably, the control method further includes the following steps before step S1:

Step S3: After the air conditioner is powered on, it is judged whether an instruction for setting the air outlet mode input by the user is received, if yes, then go to step S4, if not, go to the above step S1;

Step S4, judging the command for setting the air outlet mode input by the user, if the instruction for setting the air outlet mode is front air outlet, then control the opening and closing mechanism 40 to open the front air outlet 12 and close the lower air outlet 14. If the command to set the air outlet mode is downward air outlet, control the opening and closing mechanism 40 to close the front air outlet 12 and open the lower air outlet 14; if the instruction to set the air outlet mode is two-way air outlet If the wind blows, the opening and closing mechanism 40 is controlled to open the front air outlet 12 and the lower air outlet 14 at the same time.

In this way, the user can manually set the air outlet mode according to special needs. After the user powers on, he can set and choose a certain air outlet mode through the wire controller or remote control.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (13)

1. an air pipe type air conditioner indoor unit, comprise housing, indoor heat exchanger and indoor fan, described housing is provided with return air inlet and air outlet, described indoor heat exchanger is arranged in described housing, and between described return air inlet and described air outlet, described indoor fan is arranged in the described housing of described indoor heat exchanger side, it is characterized in that, described air outlet comprises the front air outlet be arranged on described housing front side wall and the lower air outlet be arranged in described housing lower wall; Described indoor set also comprises the switching mechanism for opening and closing described front air outlet and described lower air outlet.

2. air pipe type air conditioner indoor unit according to claim 1, it is characterized in that, described switching mechanism comprises deep bead and deep bead driving mechanism, described deep bead can rotate around the axis, and there is the first turned position and the second turned position, when described deep bead is in described first turned position, described lower air outlet is closed by described deep bead, when described deep bead is in described second turned position, described front air outlet is closed by described deep bead, and described deep bead driving mechanism is for driving described deep bead.

3. air pipe type air conditioner indoor unit according to claim 2, it is characterized in that, described deep bead also has the 3rd turned position between described first turned position and described second turned position, when described deep bead is in described 3rd turned position, described front air outlet and described lower air outlet are opened simultaneously.

4. the air pipe type air conditioner indoor unit according to Claims 2 or 3, is characterized in that, described deep bead is positioned at described housing, and the angle between described first turned position and described second turned position is 90 °.

5. the air pipe type air conditioner indoor unit according to Claims 2 or 3, is characterized in that, described deep bead driving mechanism comprises synchronous motor and connecting rod, and described synchronous motor drivening rod makes deep bead rotate.

6. air pipe type air conditioner indoor unit according to claim 1, it is characterized in that, described switching mechanism comprises at least a slice first wind blade, first wind blade driving mechanism, at least a slice second wind blade and the second wind blade driving mechanism, described first wind blade is arranged on described front air outlet place rotatably about an axis, and there is the 3rd turned position and the 4th turned position, when described first wind blade is in described 3rd turned position, described front air outlet is opened by described first wind blade, when described first wind blade is in described 4th turned position, described front air outlet is closed by described first wind blade, described first wind blade driving mechanism is for driving described first wind blade, described second wind blade is arranged on described lower air outlet place rotatably about an axis, and there is the 5th turned position and the 6th turned position, when described second wind blade is in described 5th turned position, described lower air outlet is opened by described second wind blade, when described second wind blade is in described 6th turned position, described lower air outlet is closed by described second wind blade, and described second wind blade driving mechanism is for driving described second wind blade.

7. air pipe type air conditioner indoor unit according to claim 6, it is characterized in that, described switching mechanism also comprises the first outlet frame and the second outlet frame, described first outlet frame is arranged on described front air outlet place, described first wind blade is multi-disc, and the first wind blade described in multi-disc is arranged in described first outlet frame in parallel to each other; Described second outlet frame is arranged on described lower air outlet place, and described second wind blade is multi-disc, and the second wind blade described in multi-disc is arranged in described second outlet frame abreast.

8. the air pipe type air conditioner indoor unit according to claim 6 or 7, is characterized in that, the angle between described 3rd turned position and described 4th turned position is 90 °, and the angle between described 5th turned position and described 6th turned position is 90 °.

9. the air pipe type air conditioner indoor unit according to claim 2 or 6, it is characterized in that, described indoor set also comprise the front side being arranged at described front air outlet front wind outlet panel, be arranged at the first airduct between described front wind outlet panel and described front air outlet, the lower wind outlet panel being arranged at the below of described lower air outlet and the second airduct be arranged between described lower wind outlet panel and described lower air outlet.

10. the air pipe type air conditioner indoor unit according to claim 2 or 6, is characterized in that, the shape of cross section of described indoor heat exchanger is V-shaped, and the opening direction of described indoor heat exchanger is towards described indoor heat exchanger; Or the shape of cross section of described indoor heat exchanger is in " one " font, and described indoor heat exchanger is with the axial vertical of described housing or be obliquely installed with certain angle.

11. air pipe type air conditioner indoor units according to claim 2 or 6, it is characterized in that, described indoor heat exchanger is arranged at air draught side or the air side of described indoor fan.

12. 1 kinds as the control method of the air pipe type air conditioner indoor unit in claim 1 to 11 as described in any one, is characterized in that, comprise the following steps:

S1, when air-conditioner start run time, obtain operational mode;

S2, judge described operational mode, if described operational mode is refrigeration mode, dehumidification mode or air supply pattern, then control described switching mechanism and open described front air outlet, close described lower air outlet, if described operational mode is heating mode, then control described switching mechanism and close described front air outlet, open described lower air outlet.

13. control methods according to claim 12, is characterized in that, described control method also comprises the following steps before being arranged at step S1:

After S3, air-conditioner power on, judge whether the instruction of the setting air-out mode receiving user's input, if so, then proceed to step S4, if not, proceed to described step S1;

S4, judge the instruction of the setting air-out mode that user inputs, if the instruction of setting air-out mode is front air-out, then control described switching mechanism and open described front air outlet, close described lower air outlet, if the instruction of setting air-out mode is lower air-out, then controls described switching mechanism and close described front air outlet, open described lower air outlet, if the instruction of setting air-out mode is Bidirectional outlet air, then controls described switching mechanism and open described front air outlet and described lower air outlet simultaneously.