Air conditioner and control method thereof

Abstract

The invention provides an air conditioner and a control method thereof.The air conditioner comprises a first air duct component, a first draught fan, a flow aiding draught fan and an air cylinder, the first air duct component is provided with a first air duct, a first air opening and an air passing opening are formed in the two ends of the first air duct respectively, the air cylinder is assembled on the first air duct component, and a part of the air cylinder is located in the first air duct; the air duct is provided with an aided flow air duct communicated with the first air duct, the aided flow fan is arranged in the aided flow air duct, the aided flow air duct is provided with an air supply outlet facing the first air opening, a ventilation opening is formed in the air duct and located in the air inlet side of the aided flow fan, and the ventilation opening and the air supply outlet are both located between the first fan and the first air opening. According to the air conditioner and the air conditioner, due to the fact that the flow aiding fan can conduct secondary acceleration on part of airflow driven by the first fan, the boosting effect is achieved, the first air opening can conduct longer-distance air supply, and when the air conditioner is applied to a living room with a large space, temperature distribution of the living room can be more uniform, and comfort is better.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioning, and in particular relates to an air conditioner and a control method thereof. Background Art

[0002] As people's living standards improve, residents' living rooms become larger and larger, which makes the cabinet air conditioners placed in the living room expose the problem of insufficient air supply distance, resulting in uneven temperature and poor comfort in the living room. Summary of the invention

[0003] Therefore, the present invention provides an air conditioner that can solve the technical problem that the living room of the residents becomes larger and larger, so that the cabinet air conditioner placed in the living room is exposed to the problem of insufficient air supply distance, resulting in uneven temperature in the living room and poor comfort.

[0004] In order to solve the above problems, the present invention provides an air conditioner, comprising a first air duct component, a first fan, a flow-assisting fan and an air cylinder, the first air duct component having a first air duct, a first end of the first air duct forming a first air outlet, a second end of the first air duct forming an air outlet, a preset angle being formed between the direction of the first air outlet and the direction of the air outlet, and the first fan being arranged corresponding to the first air duct; the air cylinder being assembled on the first air duct component and having a partial section in the first air duct, the air cylinder having a flow-assisting air duct, the flow-assisting air duct being connected with the first air duct, the flow-assisting fan being arranged in the flow-assisting air duct, the flow-assisting air duct having an air supply outlet facing the first air outlet, the air supply outlet being on the air outlet side of the flow-assisting fan, a ventilation opening being constructed on the partial section of the air cylinder in the first air duct, the ventilation opening being on the air inlet side of the flow-assisting fan, and the ventilation opening and the air supply opening being both located between the first fan and the first air outlet.

[0005] In some embodiments, the first air outlet has a first center line, the air flow-aiding air duct has a second center line, and the second center line is parallel to the first center line.

[0006] In some embodiments, there are multiple vents, each of which is spaced apart along the circumference of the air cylinder, and each of which is located at the air inlet side of the air-assisting fan.

[0007] In some embodiments, a mounting cover is assembled on a side of the air duct away from the first air outlet, a fresh air duct is provided on a side of the mounting cover away from the air duct, a fresh air outlet connected to the flow-assisting air duct is constructed on the mounting cover, the fresh air outlet is located on the air inlet side of the flow-assisting fan, a first end of the fresh air duct corresponds to the fresh air outlet, and a second end of the fresh air duct leads to the outdoors.

[0008] In some embodiments, a damper assembly is assembled on the side of the mounting cover facing away from the air cylinder, the damper assembly includes a damper, the position of the damper corresponds to the position of the fresh air outlet, the damper is used to open or close the fresh air outlet, the first end of the fresh air duct is fixed on the damper assembly, and the first end of the fresh air duct corresponds to the damper.

[0009] In some embodiments, a filter assembly is also assembled on the mounting cover, and the filter assembly is located between the fresh air inlet and the flow-assisting fan.

[0010] In some embodiments, the air conditioner further includes a top cover and a second fan, the top cover is configured with a second air outlet, the second fan is arranged corresponding to the second air outlet, and the second fan is located between the top cover and the first fan; and / or the flow-assisting fan is an axial flow fan or a mixed flow fan.

[0011] In some embodiments, an indoor heat exchanger is disposed between the first fan and the second fan.

[0012] The present invention also provides a control method for an air conditioner, which is used to control the operation of the aforementioned air conditioner, wherein the first air outlet is the downwind outlet of the air conditioner, and the control method comprises: when the air conditioner operates in a heating mode, controlling the first fan to rotate forward and controlling the flow-assisting fan to work, and the airflows driven by the first fan and the flow-assisting fan are both discharged from the downwind outlet.

[0013] In some embodiments, when a mounting cover is assembled on a side of the air cylinder away from the first air outlet, a new air outlet connected to the air flow-aiding air duct is configured on the mounting cover, a damper assembly is assembled on a side of the mounting cover away from the air cylinder, the damper assembly includes a damper, and the damper is used to open or close the new air outlet, and the air conditioner further includes a top cover and a second fan, and a second air outlet is configured on the top cover, the second air outlet is an upper air outlet of the air conditioner;

[0014] When the air conditioner is in heating mode, the damper is controlled to close the fresh air outlet, and the second fan is controlled to rotate forward, so that the airflow driven by the second fan and the first fan enters from the upper air outlet and is discharged from the lower air outlet;

[0015] When the air conditioner is running in heating + fresh air mode, the damper is controlled to open the fresh air outlet, the first fan is controlled to rotate forward, the second fan is controlled to rotate forward, and the flow-assisting fan is controlled to work, the airflow driven by the second fan and the first fan both enters from the upper air outlet and is discharged from the lower air outlet, and the airflow driven by the flow-assisting fan enters from the fresh air outlet and is discharged from the lower air outlet;

[0016] When the air conditioner operates in heating + fresh air mode, the damper is controlled to open the fresh air outlet, the first fan is controlled to reverse, the second fan is controlled to reverse, and the airflow fan is controlled not to work, and the airflow driven by the first fan and the second fan respectively enters from the lower air outlet and the fresh air outlet and is discharged from the upper air outlet.

[0017] The present invention provides an air conditioner and a control method thereof, which have the following beneficial effects:

[0018] When the airflow driven by the first fan of the air conditioner is discharged from the first air outlet and the flow-assisting fan is also in working state, since the vent and air supply outlet of the air duct are both located between the first fan and the first air outlet, the airflow driven by the first fan will flow through the vent and air supply outlet. Because the vent is on the air inlet side of the flow-assisting fan, the air supply outlet is on the air outlet side of the flow-assisting fan, and the air supply outlet faces the first air outlet, part of the airflow driven by the first fan will be sucked into the air duct through the vent, and then the part of the airflow will be accelerated for a second time under the drive of the flow-assisting fan in the air duct, and then blown to the first air outlet from the air supply outlet, and then discharged from the first air outlet. That is, the flow-assisting fan has accelerated part of the airflow driven by the first fan for a second time, which has a boosting effect, so that the first air outlet can deliver air at a longer distance. When the air conditioner of the present application is used in a living room with a larger space, because the air conditioner can achieve distance air delivery, the temperature distribution in the living room can be made more uniform and more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] Figure 1 This is a schematic diagram of an air conditioner according to an embodiment of the present invention operating in a heating mode and with the fresh air outlet of a fresh air device where the air flow-assisting fan is located closed and only the air flow-assisting fan is operating;

[0021] Figure 2 This is a schematic structural diagram of a fresh air device in which a flow-assisting fan of an air conditioner according to an embodiment of the present invention is located;

[0022] Figure 3 An exploded schematic diagram of a fresh air device where a flow-assisting fan of an air conditioner according to an embodiment of the present invention is located;

[0023] Figure 4 A cross-sectional view of a fresh air device where a flow-assisting fan of an air conditioner according to an embodiment of the present invention is located;

[0024] Figure 5 This is a schematic diagram of an air conditioner according to an embodiment of the present invention operating in a heating + fresh air mode;

[0025] Figure 6 This is a schematic diagram of an air conditioner according to an embodiment of the present invention operating in a cooling + fresh air mode;

[0026] Figure 7 An exploded schematic diagram of an air conditioner according to an embodiment of the present invention;

[0027] Figure 8 2 is a cross-sectional view of an air conditioner according to an embodiment of the present invention.

[0028] The reference numerals are as follows:

[0029] 1. First air duct component; 2. First fan; 3. Flow-assisting fan; 4. Air cylinder; 5. First air outlet; 6. Air vent; 7. Mounting cover; 8. Fresh air outlet; 9. Damper assembly; 91. Damper; 92. Carrier; 10. Filter assembly; 11. Top cover; 12. Second fan; 13. Second air outlet; 14. Indoor heat exchanger; 15. First fan casing; 16. Second fan casing; 17. Front casing; 18. Rear casing; 19. Chassis. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0034] See also Figures 1 to 8 As shown, according to an embodiment of the present invention, an air conditioner is provided, comprising a first air duct component 1, a first fan 2, a flow-assisting fan 3 and a wind tube 4. The first air duct component 1 has a first air duct, a first air outlet 5 is formed at the first end of the first air duct, and an air outlet is formed at the second end of the first air duct. A preset angle is formed between the direction of the first air outlet 5 and the direction of the air outlet, and the first fan 2 is arranged corresponding to the first air duct. The wind tube 4 is assembled on the first air duct component 1 and has a partial section in the first air duct. The wind tube 4 has a flow-assisting air duct, which is connected to the first air duct. The flow-assisting fan 3 is arranged in the flow-assisting air duct, and the flow-assisting air duct has an air supply port facing the first air outlet 5, which is located at the air outlet side of the flow-assisting fan 3. A vent 6 is constructed on the partial section of the wind tube 4 in the first air duct, which is located at the air inlet side of the flow-assisting fan 3. The vent 6 and the air supply port are both located between the first fan 2 and the first air outlet 5.

[0035] In this technical solution, when the airflow driven by the first fan 2 of the air conditioner is discharged from the first air outlet 5 and the flow-assisting fan 3 is also in working state, since the vent 6 and the air supply port of the air duct 4 are both located between the first fan 2 and the first air outlet 5, the airflow driven by the first fan 2 will flow through the vent 6 and the air supply port. In addition, because the vent 6 is located on the air inlet side of the flow-assisting fan 3, the air supply port is located on the air outlet side of the flow-assisting fan 3, and the air supply port faces the first air outlet 5, part of the airflow driven by the first fan 2 will be sucked into the air duct 4 through the vent 6, and then this part of the airflow will be accelerated for a second time under the drive of the flow-assisting fan 3 in the air duct 4, and then blown to the first air outlet 5 from the air supply port, and then discharged from the first air outlet 5. That is, the flow-assisting fan 3 has accelerated part of the airflow driven by the first fan 2 for a second time, which has a boosting effect, so that the first air outlet 5 can supply air for a longer distance. When the air conditioner of the present application is used in a living room with a larger space, since the air conditioner can realize distance air supply, the temperature distribution in the living room can be more uniform and the comfort can be better.

[0036] See also Figure 1 As shown, the first air outlet 5 has a first center line, the air flow-assisting air duct has a second center line, and the second center line is parallel to the first center line.

[0037] In this embodiment, when the second center line is parallel to the first center line, it indicates that the flow-assisting air duct is directly opposite to the first air outlet 5 and the extension direction of the flow-assisting air duct is the same as the direction of the first air outlet 5. In this way, the flow-assisting fan 3 can play the maximum flow-assisting role, thereby further improving the air supply distance of the air conditioner.

[0038] As a specific implementation, the flow-assisting fan 3 is an axial flow fan or a mixed flow fan.

[0039] In this technical solution, the axial flow fan has the characteristic of axial air discharge. When the flow-assisting air duct is directly opposite to the first air outlet 5, when the flow-assisting fan 3 is an axial flow fan, the air supply distance of the air conditioner can be further increased. The mixed flow fan has the characteristics of both the axial flow fan and the centrifugal fan. The airflow it drives is a mixture of the two motion forms of axial flow and centrifugal. Therefore, when the flow-assisting fan 3 is a mixed flow fan, the purpose of increasing the air supply distance of the air conditioner can also be achieved.

[0040] See also Figure 2 and Figure 4 As shown, there are multiple vents 6 , and the vents 6 are spaced apart along the circumference of the air cylinder 4 , and each vent 6 is located at the air inlet side of the air-assisting fan 3 .

[0041] In this embodiment, when the circumferential structure of the air duct 4 has a plurality of spaced vents 6, the air intake of the airflow-assisting fan 3 can be increased, so that the airflow-assisting fan 3 can perform secondary acceleration on more airflow, which is also to increase the air supply distance of the air conditioner. At the same time, the plurality of vents 6 can also disperse the airflow into the air duct 4, thereby reducing the flow resistance of the airflow and allowing the airflow to enter the air duct 4 more smoothly.

[0042] See also Figures 2 to 4 As shown, a mounting cover 7 is assembled on the side of the air duct 4 away from the first air outlet 5, a fresh air duct is arranged on the side of the mounting cover 7 away from the air duct 4, a fresh air outlet 8 connected to the flow-assisting air duct is constructed on the mounting cover 7, the fresh air outlet 8 is located on the air inlet side of the flow-assisting fan 3, a first end of the fresh air duct corresponds to the fresh air outlet 8, and a second end of the fresh air duct leads to the outdoors.

[0043] In this technical solution, the flow-assisting fan 3 also has the function of introducing outdoor fresh air. When both the first fan 2 and the flow-assisting fan 3 are working, the flow-assisting fan 3 can not only inhale the air-conditioning air driven by the first fan 2 through the vent 6, but also inhale the outdoor fresh air through the fresh air vent 8, and make the air-conditioning air and the outdoor fresh air fully mixed in the air duct 4 before being sent indoors. This is equivalent to precooling or preheating the outdoor fresh air, which can avoid the outdoor fresh air being directly sent indoors, causing large indoor temperature fluctuations or overcooling or overheating of local areas indoors.

[0044] See also Figure 3 As shown, a damper assembly 9 is assembled on the side of the mounting cover 7 facing away from the air duct 4. The damper assembly 9 includes a damper 91. The position of the damper 91 corresponds to the position of the fresh air outlet 8. The damper 91 is used to open or close the fresh air outlet 8. The first end of the fresh air duct is fixed on the damper assembly 9, and the first end of the fresh air duct corresponds to the damper 91.

[0045] In this embodiment, the damper 91 is driven by a motor to open or close the fresh air outlet 8. By setting the damper 91, the user can achieve various needs through the air conditioner. For example, when the user only needs the air conditioner to increase the air supply distance and does not need to introduce outdoor fresh air, the damper 91 is driven by the motor to close the fresh air outlet 8, and then the first fan 2 and the air flow fan 3 work at the same time; when the air conditioner needs to increase the air supply distance and introduce outdoor fresh air, the damper 91 is driven by the motor to open the fresh air outlet 8, and then the first fan 2 and the air flow fan 3 work at the same time. Among them, the damper assembly 9 also includes a carrier 92, the damper 91 is installed on the carrier 92, and the carrier 92 is assembled on the mounting cover 7.

[0046] See also Figures 2 to 4As shown, a filter assembly 10 is also assembled on the mounting cover 7. The filter assembly 10 is located between the fresh air outlet 8 and the airflow-assisting fan 3. The filter assembly 10 can filter the outdoor fresh air to make the fresh air entering the room relatively clean. It can be understood that the airflow-assisting fan 3, the air cylinder 4, the mounting cover 7, the damper assembly 9, and the filter assembly 10 together constitute the fresh air device of the air conditioner. When the airflow-assisting fan 3 is an axial flow fan, since the axial flow fan has axial air inlet and outlet, the fresh air device does not occupy much space in the first air duct component 1.

[0047] See also Figure 7 and Figure 8 As shown, the air conditioner further includes a top cover 11 and a second fan 12 . The top cover 11 is provided with a second air outlet 13 . The second fan 12 is arranged corresponding to the second air outlet 13 , and the second fan 12 is located between the top cover 11 and the first fan 2 .

[0048] In this technical solution, the air conditioner of the present application refers in particular to a cabinet air conditioner. Among them, the first air outlet 5 is the lower air outlet of the air conditioner, the first air outlet 5 of the first air duct component 1 is close to the bottom of the air conditioner, and the first air outlet 5 faces forward, the air outlet of the first air duct component 1 faces upward, and the preset angle formed between the direction of the first air outlet 5 and the direction of the air outlet is 90°. The first fan 2 is the lower fan of the air conditioner, the first fan 2 is arranged above the air outlet and close to the air outlet, the first fan 2 is an axial flow fan, and the first fan 2 is in the first fan housing 15, and the first fan housing 15 has a wind gathering effect. The second air outlet 13 on the top cover 11 is the upper air outlet of the air conditioner, the second fan 12 is the upper fan of the air conditioner, the second fan 12 is arranged below the top cover 11 and close to the second air outlet 13, the second fan 12 is an axial flow fan, and the second fan 12 is in the second fan housing 16, and the second fan housing 16 has a wind gathering effect. The addition of the second fan 12 can increase the air output of the air conditioner.

[0049] It should be noted that the air conditioner is provided with the first air vent 5 and the second air vent 13 distributed up and down to achieve bath-style cooling and carpet-style heating. For example, when the air conditioner is heating, the first fan 2 and the second fan 12 are controlled to rotate forward, so that the air is taken in from the second air vent 13 and the air is discharged from the first air vent 5. Since the first air vent 5 is the downwind vent, the hot air exhausted from the first air vent 5 flows from bottom to top in the living room, thereby achieving carpet-style heating. When the air conditioner is heating, if you want to increase the air supply distance, you can control the damper 91 to close the fresh air vent 8 and control the flow-assisting fan 3 to work. The flow of air in the air conditioner is as shown in the figure. Figure 1 If you want to introduce fresh air from outside, then control the damper 91 to open the fresh air outlet 8 and control the flow fan 3 to work. The flow of air in the air conditioner is as follows Figure 5As shown. Since the introduced outdoor fresh air and the hot air of the air conditioner are fully mixed in the air duct 4 when the flow-assisting fan 3 is working, the air outlet of the fresh air device is hot air. Therefore, when the air conditioner is running in heating + fresh air mode, it can avoid the situation where cold wind blows people, thereby improving the comfort of the fresh air. When the air conditioner is cooling, the first fan 2 and the second fan 12 are controlled to reverse, so that the air conditioner takes in air from the first air outlet 5 and exhausts air from the second air outlet 13. Since the second air outlet 13 is the upper air outlet, the cold air exhausted from the second air outlet 13 flows from top to bottom in the living room, thereby achieving bathing-style cooling. When the air conditioner is cooling, if you want to introduce outdoor fresh air, control the damper 91 to open the fresh air outlet 8, and control the flow-assisting fan 3 not to work. Under the action of the first fan 2 and the second fan 12, the outdoor fresh air enters from the fresh air outlet 8 and is exhausted from the second air outlet 13. The flow of air in the air conditioner is shown as follows. Figure 6 As shown. Since the air-assisting fan 3 does not work when the air conditioner operates in the cooling + fresh air mode, energy saving can be achieved in this mode.

[0050] See also Figure 7 and Figure 8 As shown, an indoor heat exchanger 14 is provided between the first fan 2 and the second fan 12 .

[0051] In this embodiment, the indoor heat exchanger 14 is arranged between the first fan 2 and the second fan 12, so that the first fan 2 and the second fan 12 can share a heat exchanger. It can be understood that when the indoor heat exchanger 14 is arranged between the first fan 2 and the second fan 12, when the air conditioner operates in the cooling + fresh air mode, the outdoor fresh air entering from the fresh air outlet 8 will flow through the indoor heat exchanger 14 before being discharged from the second air outlet 13, so that the outdoor fresh air will be discharged from the second air outlet 13 only after heat exchange to become cold air, thereby preventing the problem of outdoor fresh air introduced in the cooling mode from entering the room without pre-cooling and causing discomfort to the user.

[0052] It should also be noted that the air conditioner further includes a front shell 17, a rear shell 18 and a chassis 19, the front shell 17 and the rear shell 18 are assembled to form the shell of the air conditioner, the first air duct component 1, the first fan 2, the first fan shell 15, the second fan 12, the second fan shell 16, the indoor heat exchanger 14, the flow-assisting fan 3, the air cylinder 4, the installation cover 7, the damper assembly 9, and the filter assembly 10 are all installed in the shell, and the top cover 11 and the chassis 19 are respectively assembled on the upper and lower sides of the shell. The front shell 17 has a grille area, which is close to the bottom of the front shell 17 and corresponds to the first air outlet 5.

[0053] The present invention also provides a method for controlling an air conditioner, which is used to control the operation of the aforementioned air conditioner. The control method comprises:

[0054] When the air conditioner is in heating mode, the damper 91 is controlled to close the fresh air inlet 8, the first fan 2 and the second fan 12 are controlled to rotate forward, the flow-assisting fan 3 is controlled to work, the airflow driven by the second fan 12 and the first fan 2 enters from the upper air inlet and is discharged from the lower air inlet, and the airflow driven by the flow-assisting fan 3 enters from the fresh air inlet 8 and is discharged from the lower air inlet. The flow-assisting fan 3 assists the flow, and increases the air supply distance while heating.

[0055] When the air conditioner is in heating + fresh air mode, the damper 91 is controlled to open the fresh air inlet 8, the first fan 2 and the second fan 12 are controlled to rotate forward, the flow-assisting fan 3 is controlled to work, the airflow driven by the second fan 12 and the first fan 2 enters from the upper air inlet and is discharged from the lower air inlet, and the airflow driven by the flow-assisting fan 3 enters from the fresh air inlet 8 and is discharged from the lower air inlet. The flow-assisting fan 3 mixes the outdoor fresh air with the hot air from the air conditioner to preheat the outdoor fresh air, so that the fresh air is heated and introduced without causing cold wind to blow on people.

[0056] When the air conditioner is running in heating + fresh air mode, the damper 91 is controlled to open the fresh air outlet 8, the first fan 2 is controlled to reverse, the second fan 12 is controlled to reverse, and the flow-assisting fan 3 is controlled not to work. The airflow driven by the first fan 2 and the second fan 12 enters from the lower air outlet and the fresh air outlet 8 respectively and is discharged from the upper air outlet. When cooling and introducing outdoor fresh air, the flow-assisting fan 3 does not need to work, achieving energy saving. At the same time, the outdoor fresh air introduced and the indoor heat exchanger 14 become cold air after heat exchange, and there will be no hot air blowing out during cooling to cause discomfort to the user.

[0057] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that: The invention comprises a first air duct component (1), a first fan (2), a flow-assisting fan (3) and an air cylinder (4), wherein the first air duct component (1) has a first air duct, a first end of the first air duct forms a first air outlet (5), a second end of the first air duct forms an air outlet, a direction of the first air outlet (5) forms a preset angle with a direction of the air outlet, and the first fan (2) is arranged corresponding to the first air duct; The wind tube (4) is assembled on the first air duct component (1) and has a partial section located in the first air duct. The wind tube (4) has a flow-assisting air duct, which is connected to the first air duct. The flow-assisting fan (3) is arranged in the flow-assisting air duct. The flow-assisting air duct has an air supply port facing the first air outlet (5), and the air supply port is located on the air outlet side of the flow-assisting fan (3). A ventilation port (6) is constructed on the partial section of the wind tube (4) located in the first air duct, and the ventilation port (6) is located on the air inlet side of the flow-assisting fan (3). The ventilation port (6) and the air supply port are both located between the first fan (2) and the first air outlet (5).

2. The air conditioner according to claim 1, characterized in that: The first air outlet (5) has a first center line, and the flow-assisting air duct has a second center line, and the second center line is parallel to the first center line.

3. The air conditioner according to claim 1, characterized in that: There are a plurality of ventilation openings (6), each of which is spaced apart along the circumference of the air cylinder (4), and each of which is located on the air inlet side of the air-assisting fan (3).

4. The air conditioner according to claim 1, characterized in that: A mounting cover (7) is assembled on the side of the wind tube (4) away from the first air outlet (5); a fresh air duct is arranged on the side of the mounting cover (7) away from the wind tube (4); a fresh air outlet (8) connected to the air flow-assisting air duct is constructed on the mounting cover (7); the fresh air outlet (8) is located on the air inlet side of the air flow-assisting fan (3); a first end of the fresh air duct corresponds to the fresh air outlet (8); and a second end of the fresh air duct leads to the outdoors.

5. The air conditioner according to claim 4, characterized in that: A damper assembly (9) is assembled on a side of the mounting cover (7) facing away from the air cylinder (4), the damper assembly (9) comprising a damper (91), the position of the damper (91) corresponding to the position of the fresh air outlet (8), the damper (91) being used to open or close the fresh air outlet (8), the first end of the fresh air duct being fixed on the damper assembly (9), and the first end of the fresh air duct corresponding to the damper (91).

6. The air conditioner according to claim 4, characterized in that: A filter assembly (10) is also assembled on the installation cover (7), and the filter assembly (10) is located between the fresh air inlet (8) and the airflow-assisting fan (3).

7. The air conditioner according to any one of claims 1 to 6, characterized in that: The invention also comprises a top cover (11) and a second fan (12), wherein the top cover (11) is provided with a second air outlet (13), the second fan (12) is arranged corresponding to the second air outlet (13), and the second fan (12) is located between the top cover (11) and the first fan (2); and / or the flow-assisting fan (3) is an axial flow fan or a mixed flow fan.

8. The air conditioner according to claim 7, characterized in that: An indoor heat exchanger (14) is provided between the first fan (2) and the second fan (12).

9. A method for controlling an air conditioner, characterized in that: Used to control the operation of the air conditioner according to any one of claims 1 to 8, the first air outlet (5) is the downwind outlet of the air conditioner, and the control method comprises: when the air conditioner operates in a heating mode, controlling the first fan (2) to rotate forward, controlling the flow-assisting fan (3) to operate, and the airflows driven by the first fan (2) and the flow-assisting fan (3) are both discharged from the downwind outlet.

10. The control method according to claim 9, characterized in that: When a mounting cover (7) is assembled on a side of the air cylinder (4) away from the first air outlet (5), a fresh air outlet (8) connected to the airflow-assisting air duct is constructed on the mounting cover (7), a damper assembly (9) is assembled on a side of the mounting cover (7) away from the air cylinder (4), the damper assembly (9) comprises a damper (91), and the damper (91) is used to open or close the fresh air outlet (8), and the air conditioner further comprises a top cover (11) and a second fan (12), and a second air outlet (13) is constructed on the top cover (11), the second air outlet (13) is an upper air outlet of the air conditioner; When the air conditioner is in heating mode, the damper (91) is controlled to close the fresh air inlet (8), and the second fan (12) is controlled to rotate forward, so that the airflow driven by the second fan (12) and the first fan (2) enters from the upper air inlet and is discharged from the lower air inlet; When the air conditioner is operated in a heating + fresh air mode, the damper (91) is controlled to open the fresh air outlet (8), the first fan (2) is controlled to rotate forward, the second fan (12) is controlled to rotate forward, and the flow-assisting fan (3) is controlled to operate, the airflows driven by the second fan (12) and the first fan (2) both enter through the upper air outlet and are discharged through the lower air outlet, and the airflow driven by the flow-assisting fan (3) enters through the fresh air outlet (8) and is discharged through the lower air outlet; When the air conditioner operates in heating + fresh air mode, the damper (91) is controlled to open the fresh air outlet (8), the first fan (2) is controlled to reverse, the second fan (12) is controlled to reverse, and the flow-assisting fan (3) is controlled not to work, and the airflow driven by the first fan (2) and the second fan (12) enters from the lower air outlet and the fresh air outlet (8) respectively and is discharged from the upper air outlet.

Images