CN220038616U

CN220038616U - Air conditioner

Info

Publication number: CN220038616U
Application number: CN202223298460.6U
Authority: CN
Inventors: 赵紫生; 胡瑾; 刘丰收; 周何杰; 刘志强
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-11-17
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses an air conditioner, comprising: a housing, heat exchanger components, and a fan assembly. The fan assembly is arranged in the shell and comprises a first fan and an air duct piece, the first fan comprises a first wind wheel and a first motor, the first wind wheel comprises an inner ring fan blade and an outer ring fan blade, a first air duct is defined in the air duct piece, the first air duct comprises a first sub-air duct and a second sub-air duct, the second sub-air duct surrounds the periphery side of the first sub-air duct, the inner ring fan blade is positioned in the first sub-air duct, the outer ring fan blade is positioned in the second sub-air duct, the second sub-air duct comprises two air duct sections distributed along the second direction, and a movable air door is arranged between at least one air duct section and the air inlet for controlling the communication and the separation between the corresponding air duct section and the air inlet. According to the air conditioner provided by the embodiment of the utility model, the second sub air duct is arranged as the two air duct sections, the air duct sections are selectively communicated or separated from the air inlet, and the air outlet direction can be adjusted by utilizing the formed air pressure difference.

Description

Air conditioner

Technical Field

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

Background

In the related art, the air conditioner generally realizes the regulation of the air outlet air flow direction through the air deflector, but the air deflector can only play a role in regulating the air outlet direction in the working process, and has a single function.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide an air conditioner, in which a second sub-duct is provided with two duct sections arranged along a second direction, and a damper is provided to control communication and separation between the corresponding duct sections and an air inlet, so that the air outlet direction can be adjusted by using the formed air pressure difference, and meanwhile, the circulating flow of air flow near the air outlet can be promoted, the indoor temperature layering phenomenon can be reduced, and the uniformity of indoor temperature can be facilitated.

According to an embodiment of the utility model, an air conditioner includes: the shell is provided with an air inlet and an air outlet; a heat exchanger component disposed within the housing; the fan assembly is arranged in the shell and comprises a first fan and an air duct piece, the first fan comprises a first wind wheel and a first motor used for driving the first wind wheel to rotate, the rotation axis of the first wind wheel extends along a first direction, the first wind wheel comprises an inner ring fan blade and an outer ring fan blade which are coaxially arranged, a first air duct is defined in the air duct piece, the first wind wheel is arranged in the first air duct, the first air duct comprises a first sub-air duct and a second sub-air duct which are arranged along the radial direction of the first wind wheel and are mutually separated, the second sub-air duct surrounds the outer peripheral side of the first sub-air duct, the inner ring fan blade is positioned in the first sub-air duct, the outer ring fan blade is positioned in the second sub-air duct, and the first sub-air duct is communicated with the air inlet; the second sub-air duct comprises two air duct sections which are arranged along a second direction, and a movable air door is arranged between at least one air duct section and the air inlet and used for controlling the communication and the partition between the corresponding air duct section and the air inlet.

According to the air conditioner provided by the embodiment of the utility model, the second sub air duct is arranged into the two air duct sections which are distributed along the second direction, and the air door is arranged to control the communication and the separation between the corresponding air duct sections and the air inlet, so that the air pressure difference can be formed between the two air duct sections by controlling the air door to close one of the air duct sections, and the air flow can deflect and flow towards the area with smaller air pressure in the second direction, thereby realizing the regulation of the air outlet direction, promoting the circulation flow of the air flow near the air outlet, reducing the indoor temperature layering phenomenon and being beneficial to the uniformity of indoor temperature.

According to some embodiments of the utility model, two of the duct segments together form the second sub-duct in the shape of a ring.

According to some embodiments of the utility model, both of the duct segments are semi-circular.

According to some embodiments of the utility model, the air duct member is formed with an air flow channel, the air flow channel is located at an upstream side of the first air duct, the air flow channel comprises a first sub-air flow channel and a second sub-air flow channel which are arranged along a radial direction of the first wind wheel and are separated from each other, the second sub-air flow channel surrounds an outer peripheral side of the first sub-air flow channel, the first sub-air flow channel is opposite to and communicated with the first sub-air duct, the second sub-air flow channel comprises two channel sections which are arranged along the second direction, the two channel sections respectively correspond to the two air duct sections, the channel sections are suitable for communicating the corresponding air duct sections with the air inlet, and the air door is movably arranged on the air duct member and is used for opening and closing the corresponding channel sections.

According to some embodiments of the utility model, the air duct member includes an air duct plate and an air duct member body connected to the air duct plate and located on a downstream side of the air duct plate, the air duct member body having the first air duct, the air duct plate having the air flow passage.

According to some embodiments of the utility model, the damper is slidable in the second direction to open and close the corresponding passage section.

According to some embodiments of the utility model, the casing is formed with a first chute extending in the second direction, and the damper is provided with a first slider accommodated in the first chute and slidable in the extending direction of the first chute.

According to some embodiments of the utility model, the two duct segments together form the annular second sub-duct, and the two duct segments together form the annular air flow duct.

According to some embodiments of the utility model, the damper conforms to the extended shape of the passage section.

According to some embodiments of the utility model, the air door is two corresponding to two air duct sections respectively, and the two air doors are controlled independently respectively.

According to some optional embodiments of the utility model, when the first wind wheel rotates, a wind speed of the outer ring fan blade is different from a wind speed of the inner ring fan blade.

According to some embodiments of the utility model, the number of blades of the outer ring fan blade is not less than the number of blades of the inner ring fan blade.

According to some embodiments of the utility model, the fan assembly further comprises a second fan, the second fan comprises a second wind wheel and a second motor for driving the second wind wheel to rotate, the first motor and the second motor are respectively and independently controlled, the first wind wheel and the second wind wheel are arranged along the flowing direction of the airflow, and the rotation direction of the first wind wheel is opposite to the rotation direction of the second wind wheel; the second wind wheel is arranged in the second wind channel, the second wind channel is opposite to and communicated with the first sub-wind channel, and the second wind channel is positioned on the upstream side of the first sub-wind channel and communicated with the air inlet.

According to some embodiments of the utility model, the fan assembly has a plurality of modes of operation, including a first mode of operation, a second mode of operation, and a third mode of operation; in the first working mode, the first wind wheel and the second wind wheel rotate at different rotation speeds; in the second working mode, the first wind wheel and the second wind wheel rotate at the same rotation speed; in the second mode of operation, the second wind wheel is stopped and the first wind wheel is rotated.

According to some embodiments of the utility model, the air inlet comprises a first air inlet and a second air inlet, the first air inlet is located on the upstream side of the heat exchanger component, the second air inlet is located on the downstream side of the heat exchanger component, the second air duct is communicated with the first air inlet, a movable air door is arranged between at least one air duct section and the first air inlet, and is used for controlling communication and separation between the corresponding air duct section and the first air inlet, and the air conditioner further comprises a switch door used for communicating or separating the second air inlet from the second sub-air duct.

According to some embodiments of the utility model, the first direction is a front-to-back direction, the first wind wheel and the second wind wheel are arranged along the front-to-back direction, the air outlet is formed on a front side wall of the casing, the first air inlet is formed on a rear side wall of the casing, the second air inlet is formed on a left side wall and/or a right side wall of the casing, the heat exchanger component is located between the first air inlet and the fan component, a heat exchange air channel is defined between a rear side of the air channel component and the heat exchanger component, the heat exchange air channel is communicated with the first air inlet and the second air channel, an annular communication air channel is defined between an outer peripheral side of the air channel component and the casing, the communication air channel is located at a rear side of the second sub-air channel and surrounds the outer peripheral side of the second air channel, and the communication air channel is suitable for communicating the first air inlet with the second sub-air channel and the second air inlet with the second sub-air channel.

According to some embodiments of the utility model, the second air inlet is formed at a part of the casing opposite to the communication air duct, the switch door is located in the casing and is suitable for moving in the first direction, and the switch door moves between a first position and a second position; when the switch door is at the first position, at least part of the switch door is positioned between the second air inlet and the communication air duct, and one end of the switch door in the first direction is abutted with the peripheral wall of the first air duct so as to separate the second sub-air duct from the second air inlet; when the switch door is at the second position, the switch door is staggered with the second air inlet and is positioned between the shell and the peripheral wall of the first air duct so as to communicate the second sub-air duct with the second air inlet.

According to some embodiments of the utility model, the casing is formed with a second sliding groove extending along the first direction, and the switch door is provided with a second sliding block, and the second sliding block is accommodated in the second sliding groove and is slidable along the extending direction of the second sliding groove.

According to some embodiments of the utility model, the fan assembly has a plurality of modes of operation, including a first mode of operation, a second mode of operation, and a third mode of operation; in the first working mode, the first wind wheel and the second wind wheel rotate at different rotation speeds; in the second working mode, the first wind wheel and the second wind wheel rotate at the same rotation speed; in the second working mode, the second wind wheel stops and the first wind wheel rotates; the air conditioner is provided with a mode of mixing air without wind sensation and a mode of full heat exchange air outlet; the second air inlet is opened in the wind mixing and no-wind-sensation mode, and the fan assembly is in the first working mode or the third working mode; and in the full heat exchange air outlet mode, the second air inlet is closed, and the fan assembly is in the second working mode or the third working mode.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a front view of an air conditioning indoor unit according to some embodiments of the present utility model;

fig. 2 is a perspective view of the indoor unit of the air conditioner of fig. 1;

fig. 3 is a perspective view of another view of the indoor unit of the air conditioner of fig. 1;

FIG. 4 is an enlarged view of FIG. 3 at C with the damper open to one of the passage segments;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1 with the damper open to one of the passage segments;

FIG. 6 is a perspective view of the fan assembly with the damper opening one of the duct segments;

FIG. 7 is a perspective view of another view of the blower assembly of FIG. 6;

FIG. 8 is an enlarged view of FIG. 3 at C with the damper open for two passage segments;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 1 with the damper opening two passage segments;

FIG. 10 is a front view of the fan assembly with the damper opening two channel segments;

FIG. 11 is a perspective view of the blower assembly of FIG. 10;

FIG. 12 is a cross-sectional view taken along line A-A of FIG. 1 with the damper opening two passage segments;

FIG. 13 is an enlarged view of FIG. 3 at C with the damper closing both passage segments;

FIG. 14 is a cross-sectional view taken along line B-B of FIG. 1 with the damper closing two passage segments;

FIG. 15 is a perspective view of the fan assembly with the damper closing two channel segments;

FIG. 16 is a perspective view of another view of the blower assembly of FIG. 10;

FIG. 17 is a cross-sectional view taken along line A-A of FIG. 1 with the damper opening and closing two passage segments.

Reference numerals:

100. an air conditioner indoor unit;

10. a housing; 11. a first air inlet; 12. a second air inlet; 13. an air outlet; 14. the air duct is communicated; 15. a heat exchange air duct; 16. a first chute; 17. opening and closing a door; 171. a second slider; 18. an air guide assembly; 181. a first wind guiding louver; 182. the second wind guiding louver; 19. a second chute;

20. a fan assembly; 2. a first fan; 21. a first motor; 22. a first wind wheel; 221. inner ring fan blades; 222. outer ring fan blades; 223. a connecting ring; 224. a first hub; 3. a second fan; 31. a second motor; 32. a second wind wheel; 321. a second fan blade; 322. a second hub; 4. an air duct member; 41. a first air duct; 411. a first sub-duct; 412. a second sub-duct; 4121 a duct section; 42. a second air duct; 43. a first air guide ring; 44. a second wind guide ring; 45. an air duct plate; 451. a first sub-airflow passage; 452. a second sub-airflow path; 4521. a channel section; 453. a damper; 4531. a first slider; 46. an air duct member main body;

30. A heat exchanger component.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

An air conditioner according to an embodiment of the present utility model is described below with reference to fig. 1 to 17.

Referring to fig. 1 to 17, an air conditioner according to an embodiment of the present utility model includes a cabinet 10, a heat exchanger assembly, and a blower assembly 20. Alternatively, the air conditioner may be a split type air conditioner, for example, the air conditioner may be a split floor type air conditioner, the air conditioner may include an air conditioner indoor unit 100 and an air conditioner outdoor unit, and the air conditioner indoor unit 100 includes a cabinet 10, a heat exchanger assembly, and a fan assembly 20.

The housing 10 has an air inlet and an air outlet 13, and a heat exchanger component 30 is provided in the housing 10, the heat exchanger component 30 being capable of varying the temperature of the passing air stream. The fan assembly 20 is disposed in the casing 10, and the fan assembly 20 can drive air to flow, so that air flows from the air inlet to the air outlet 13 of the casing 10. When the fan assembly 20 works, indoor air can enter the casing 10 from the air inlet of the casing 10 under the driving of the fan assembly 20, and the air entering the casing 10 can exchange heat with the heat exchanger when flowing through the heat exchanger component 30, so that the temperature of air flow is changed, and the air with the changed temperature can be discharged into a room from the air outlet 13 of the casing 10, so that the indoor temperature is changed.

The fan assembly 20 includes a first fan 2 and an air duct member 4, the first fan 2 includes a first wind wheel 22 and a first motor 21 for driving the first wind wheel 22 to rotate, a rotation axis of the first wind wheel 22 extends in a first direction (for example, refer to a front-rear direction in the drawing), and the first wind wheel 22 includes an inner ring fan blade 221 and an outer ring fan blade 222 coaxially disposed. The inner ring fan blade 221 and the outer ring fan blade 222 of the first wind wheel 22 are connected with the output shaft of the first motor 21, so that when the first motor 21 works, the inner ring fan blade 221 and the outer ring fan blade 222 have the same rotation speed. And the rotation direction of the inner ring fan blade 221 is the same as that of the outer ring fan blade 222, that is, the inclination direction of the blades of the inner ring fan blade 221 is the same as that of the blades of the outer ring fan blade 222. For example, the first wind wheel 22 further includes a first hub 224 and a connection ring 223, the first hub 224 is connected with the output shaft of the first motor 21, the inner ring fan blade 221 is disposed on the first hub 224, the inner ring fan blade 221 includes a plurality of first blades, and the plurality of first blades may be uniformly arranged at intervals along the outer peripheral side of the first hub 224. A connecting ring 223 is arranged between the outer ring fan blade 222 and the inner ring fan blade 221, the connecting ring 223 is arranged on the outer periphery side of the inner ring fan blade 221, the outer ring fan blade 222 is arranged on the connecting ring 223, and the outer ring fan blade 222 comprises a plurality of second blades.

The duct member 4 defines a first duct 41 therein, and the duct member 4 guides the air flow, which can flow in the duct member 4. The first wind wheel 22 is arranged in the first wind channel 41, the first wind channel 41 comprises a first sub-wind channel 411 and a second sub-wind channel 412 which are arranged along the radial direction of the first wind wheel 22 and are mutually separated, the second sub-wind channel 412 surrounds the outer peripheral side of the first sub-wind channel 411, the inner ring fan blades 221 are positioned in the first sub-wind channel 411, the outer ring fan blades 222 are positioned in the second sub-wind channel 412, and the first sub-wind channel 411 is communicated with the air inlet. When the first wind wheel 22 works, air can enter the casing 10 from the air inlet of the casing 10, and after the air flows through the first sub-air duct 411 under the action of the inner ring fan blades 221 of the first wind wheel 22, the air can be discharged from the air outlet 13 of the casing 10 and enter the room.

The second sub-duct 412 includes two duct segments 4121 arranged along a second direction (for example, referring to an up-down direction in the drawing), and a movable damper 453 is disposed between at least one duct segment 4121 and the air inlet, so as to control communication and separation between the corresponding duct segment 4121 and the air inlet. For example, a movable damper 453 is disposed between each of the two air duct sections 4121 and the air inlet, or a movable damper 453 is disposed between one of the air duct sections 4121 and the air inlet, when the movable damper 453 is disposed between one of the air duct sections 4121 and the air inlet, deflection of the exhaust air in one direction can be achieved, and when the movable damper 453 is disposed between each of the two air duct sections 4121 and the air inlet, deflection of the exhaust air in two directions can be achieved.

When the first wind wheel 22 works and only one wind channel section 4121 is communicated with the air inlet, air enters the machine shell 10 from the air inlet of the machine shell 10, flows through the wind channel section 4121 communicated with the air inlet, and is discharged from the air outlet 13 of the machine shell 10 and enters the room. Because the damper 453 corresponding to the air inlet-blocked air duct section 4121 is closed, no air flow passes through the air inlet-blocked air duct section 4121, the air pressure in the air inlet-blocked air duct section 4121 is far greater than the air pressure of the air inlet-blocked air duct section 4121, the air inlet-blocked air duct section 4121 forms a positive air pressure area, the air flow can flow from the positive air pressure area to the negative air pressure area, and the air flow deflects, so that the air outlet direction of the air conditioner can be adjusted. Meanwhile, the air pressure difference in the two air duct sections 4121 can promote the circulating flow of air near the air outlet 13, so that the indoor temperature layering phenomenon is reduced, and the uniformity of indoor temperature is facilitated. For example, when the rotational speed of the first rotor 22 is in the range of 300-800rpm, it is possible to achieve an angular deflection of the air flow to a certain side in the range of 0-40.

When the first wind wheel 22 works and both wind channel segments 4121 are communicated with the air inlet, both the first sub wind channel 411 and the second sub wind channel 412 of the first wind channel 41 are communicated with the air inlet. The air enters the casing 10 from the air inlet of the casing 10, flows through the first air duct 41, and is discharged from the air outlet 13 of the casing 10 and enters the room. The two air duct sections 4121 are provided with air flow, so that the air pressure in the two air duct sections 4121 is the same, and the air outlet air flows to the right front.

When the first wind wheel 22 works and both air duct sections 4121 are separated from the air inlet, the first sub-air duct 411 of the first air duct 41 is communicated with the air inlet, air enters the casing 10 from the air inlet of the casing 10, flows through the first sub-air duct 411 of the first air duct 41, and is discharged from the air outlet 13 of the casing 10 and enters the room. No air flow passes through the two air duct sections 4121, so that the air pressure in the two air duct sections 4121 is the same, and the air outlet air flows to the right front.

The two air duct sections 4121 are communicated with the air inlet, compared with the two air duct sections 4121 which are all separated from the air inlet, the integral air inlet and the integral air outlet can be increased.

For example, when the second direction is the up-down direction, a movable damper 453 is disposed between the two air duct segments 4121 and the air inlet, and the damper 453 can control the communication and the separation between the corresponding air duct segments 4121 and the air inlet. When the first wind wheel 22 works and the lower air duct section 4121 is communicated with the air inlet, a positive air pressure area is formed in the lower air duct section 4121, and a negative air pressure area is formed in the upper air duct section 4121, so that the air outlet flow can deflect upwards, and the air outlet flow can deflect upwards by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and the upper air channel section 4121 is communicated with the air inlet, a positive air pressure area is formed in the upper air channel section 4121, and a negative air pressure area is formed in the lower air channel section 4121, so that the air outlet flow can deflect downwards, and the air outlet flow can deflect downwards by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and both air duct sections 4121 are communicated or cut off from the air inlet, the air pressure in the upper air duct section 4121 is the same as the air pressure of the lower air duct section 4121, so that the air outlet air can flow to the right front.

When the second direction is the left-right direction, movable air doors 453 are arranged between the two air duct sections 4121 and the air inlet, and the air doors 453 can control the communication and the separation between the corresponding air duct sections 4121 and the air inlet. When the first wind wheel 22 works and the right wind channel section 4121 is communicated with the air inlet, a positive wind pressure area is formed in the right wind channel section 4121, and a negative wind pressure area is formed in the left wind channel section 4121, so that the air outlet flow can deflect leftwards, and the air outlet flow can deflect leftwards by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and the left air channel section 4121 is communicated with the air inlet, a positive air pressure area is formed in the left air channel section 4121, and a negative air pressure area is formed in the right air channel section 4121, so that the flow direction of the air outlet air can be deflected to the right, and the flow direction of the air outlet air can be deflected to the right by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and both air duct sections 4121 are communicated or cut off from the air inlet, the air pressure in the left air duct section 4121 is the same as the air pressure in the right air duct section 4121, so that the air outlet air can flow to the right front.

Optionally, the air outlet 13 of the casing 10 may further be provided with an air guiding component 18, where the air guiding component 18 is used in cooperation with the air door 453, so that the overall effect of adjusting the air outlet airflow direction can be further enhanced, and the air outlet airflow direction can be adjusted more flexibly.

Alternatively, the air guiding assembly 18 may include a first air guiding mechanism and a second air guiding mechanism, where the first air guiding mechanism and the second air guiding mechanism may be arranged along the airflow flowing direction, the first air guiding mechanism may be located on an upstream side of the second air guiding mechanism, the first air guiding mechanism may adjust the air outlet direction in a third direction (refer to a left-right direction in the drawing), and the second air guiding mechanism may adjust the air outlet direction in a second direction. The first wind guiding mechanism may include a plurality of first wind guiding louvers 181, and the second wind guiding mechanism may include a plurality of second wind guiding louvers 182. The plurality of first wind guiding louvers 181 may be arranged at intervals along the third direction, the rotation axis of the first wind guiding louver 181 extends along the second direction, and each first wind guiding louver 181 may rotate around its own rotation axis. The plurality of second wind guiding louvers 182 may be arranged at intervals along the second direction, the rotation axis of the second wind guiding louver 182 extends along the third direction, and each second wind guiding louver 182 may rotate around its own rotation axis.

For example, in other embodiments of the present utility model, the air outlet 13 of the air conditioner may not be provided with the air guiding assembly 18, and the air outlet direction of the air conditioner may be adjusted by only controlling the damper 453 to communicate or block the air duct section 4121 with the air inlet.

According to the air conditioner provided by the embodiment of the utility model, the second sub-air duct 412 is arranged into the two air duct sections 4121 which are arranged along the second direction, and the air door 453 is arranged to control the communication and the separation between the corresponding air duct sections 4121 and the air inlet, so that the air pressure difference can be formed between the two air duct sections 4121 by controlling the air door 453 to close one of the air duct sections 4121, and the air flow can deflect and flow towards the area with smaller air pressure in the second direction, thereby realizing the regulation of the air flow direction of the air outlet, promoting the circulation flow of the air flow near the air outlet 13, reducing the indoor temperature layering phenomenon, and being beneficial to the uniformity of indoor temperature.

According to some embodiments of the utility model, referring to fig. 5, 9 and 14, two duct segments 4121 together form an annular second sub-duct 412. The second sub-air duct 412 is annular, so that the second sub-air duct 412 is matched with the outer ring fan blades 222 of the first wind wheel 22, the overall structure of the air duct piece 4 is more compact, and the overall occupied size is reduced. The two air duct sections 4121 together form the second sub-air duct 412, and the communication or the partition of the air duct sections 4121 can be controlled to realize the layering of the air pressure in the second sub-air duct 412, so that the direction of the air flow of the whole air conditioner is changed, the air supply in different directions is realized, the circulating flow of the air flow near the air outlet 13 can be promoted, and the uniformity of the indoor temperature is facilitated.

According to some embodiments of the present utility model, referring to fig. 5, 9 and 14, the two air duct sections 4121 are both semicircular, so that the air flow areas of the two air duct sections 4121 are the same, which is convenient for controlling the direction of the air flow of the air conditioner and improving the air guiding performance. When the rotational speeds of the first wind wheels 22 are the same, one wind channel section 4121 is controlled to be communicated with the air inlet, so that the deflection angle of the air flow is approximately the same, for example, when the second direction is the up-down direction, the upward deflection angle of the air outlet flow direction is the same as the downward deflection angle.

According to some embodiments of the present utility model, referring to fig. 6 to 7, 10 to 11, and 15 to 17, the duct member 4 is formed with an air flow passage, which may guide the air flow. The air flow passage is located on the upstream side of the first air duct 41, and air may flow through the air flow passage first and then through the first air duct 41. The airflow channel comprises a first sub airflow channel 451 and a second sub airflow channel 452 which are arranged along the radial direction of the first wind wheel 22 and are mutually separated, the second sub airflow channel 452 surrounds the outer peripheral side of the first sub airflow channel 451, the first sub airflow channel 451 is opposite to and communicated with the first sub air channel 411, when the first wind wheel 22 works, air can enter the casing 10 from the air inlet of the casing 10, under the action of the inner ring fan blades 221 of the first wind wheel 22, after the air sequentially flows through the first sub airflow channel 451 and the first sub air channel 411, the air can be discharged from the air outlet 13 of the casing 10 and enter a room.

The second sub-airflow channel 452 includes two channel segments 4521 arranged along the second direction, the two channel segments 4521 correspond to the two air channel segments 4121 respectively, the channel segments 4521 are adapted to communicate the corresponding air channel segments 4121 with the air inlet, and the damper 453 is movably provided to the air channel member 4 for opening and closing the corresponding channel segments 4521. For example, the second sub-air flow path 452 may be opposite to and communicate with the second sub-air path 412 in the front-rear direction, and the two path sections 4521 of the second sub-air flow path 452 may be opposite to and communicate with the two path sections 4121 of the second sub-air path 412 in the front-rear direction, respectively.

When the first wind wheel 22 works and the damper 453 opens one channel section 4521, air enters the casing 10 from the air inlet of the casing 10, flows through the opened channel section 4521 and the corresponding air channel section 4121 of the channel section 4521 in sequence, and is discharged from the air outlet 13 of the casing 10 and enters the room. Because no air flow passes through the air duct section 4121 corresponding to the closed air duct section 4521, the air pressure in the air duct section 4121 opened by the air duct section 4521 is far greater than the air pressure of the air duct section 4121 closed by the air duct section 4521, so that the air duct section 4121 opened by the air duct section 4521 forms a positive air pressure area, the air flow can flow from the positive air pressure area to the negative air pressure area, and the air flow is deflected, so that the direction of the air flow of the air conditioner can be adjusted. Meanwhile, the air pressure difference in the two air duct sections 4121 can promote the circulating flow of air near the air outlet 13, so that the indoor temperature layering phenomenon is reduced, and the uniformity of indoor temperature is facilitated. With the increase of the rotation speed of the first wind wheel 22, the deflection angle of the airflow will also increase, so that the direction of the air-out airflow can be changed greatly.

When the first wind wheel 22 works and the air door 453 opens the two channel sections 4521, air enters the casing 10 from the air inlet of the casing 10, flows through the second sub-airflow channel 452 and the second sub-air channel 412 in sequence, and is discharged from the air outlet 13 of the casing 10 and enters the room. The two channel sections 4521 are opened to allow air flow in the two air channel sections 4121 to pass through, so that the air pressure in the two air channel sections 4121 is the same, and the air outlet air flows to the right front.

When the first wind wheel 22 operates and the damper 453 closes the two channel sections 4521, air enters the housing 10 from the air inlet of the housing 10, flows through the first sub-airflow channel 451 and the first sub-duct 411, and is discharged from the air outlet 13 of the housing 10 and enters the room. The two channel sections 4521 close the two air channel sections 4121, and no air flows in the two air channel sections 4121, so that the air pressure in the two air channel sections 4121 is the same, and the air outlet air flows to the right front.

The two channel segments 4521 are both open, which may increase the overall intake and output as compared to the two channel segments 4521 being both closed.

According to some embodiments of the present utility model, referring to fig. 6 to 7, 10 to 11, and 15 to 17, the duct member 4 includes a duct plate 45 and a duct member body 46, the duct member body 46 is connected to the duct plate 45 and the duct member body 46 is located at a downstream side of the duct plate 45, the duct member body 46 has a first duct 41, and the duct plate 45 has an airflow passage. The air duct member main body 46 is connected to the air duct plate 45, so that the overall structural strength of the air duct member 4 can be increased, and the stability of the air duct member main body 46 during operation of the air duct member 4 can be improved. The air duct plate 45 is located on the upstream side of the air duct member main body 46, so that the air flow channel is located on the upstream side of the first air duct 41, and the air duct member 4 can conveniently and integrally control the communication and the separation of the first air duct 41 and the air inlet, thereby being convenient for changing the direction of the air outlet flow.

According to some embodiments of the utility model, referring to fig. 6-7, 10-11, and 15-16, the damper 453 is slidable in a second direction to open and close the corresponding channel section 4521. When it is desired to open the channel segment 4521, the damper 453 can be slid on one side in the second direction until the channel segment 4521 is fully open. When it is desired to close the passage segment 4521, the damper 453 can be slid in the other side of the second direction until the passage segment 4521 is completely closed, so that the opening and closing of the passage segment 4521 can be achieved.

According to some embodiments of the present utility model, referring to fig. 1 to 4, 8 and 13, the cabinet 10 is formed with a first sliding groove 16 extending in a second direction, the damper 453 is provided with a first slider 4531, the first slider 4531 is accommodated in the first sliding groove 16, and the first slider 4531 is slidable along the extending direction of the first sliding groove 16. The first sliding block 4531 on the air door 453 is matched with the first sliding groove 16 on the casing 10, the first sliding groove 16 can guide the first sliding block 4531, the first sliding block 4531 can slide in the first sliding groove 16 along the second direction, and therefore the movement of the air door 453 is guided, and the air door 453 is simple in structure and convenient to operate.

When the channel 4521 needs to be opened, the first slider 4531 on the damper 453 can be slid along the first chute 16 of the housing 10 to one side in the second direction, and the first slider 4531 drives the damper 453 to slide along one side in the second direction until the channel 4521 is completely opened. When the channel 4521 needs to be closed, the first slider 4531 on the damper 453 can slide along the first chute 16 of the housing 10 to the other side in the second direction, and the first slider 4531 can drive the damper 453 to slide along the other side in the second direction until the channel 4521 is completely closed, so that the channel 4521 can be opened and closed.

According to some embodiments of the present utility model, referring to fig. 5-7, 9-11 and 14-16, the two air duct sections 4121 together form an annular second sub-air duct 412, and the second sub-air duct 412 is annular, so that the second sub-air duct 412 is matched with the outer ring fan blade 222 of the first wind wheel 22, and the overall structure of the air duct member 4 is more compact. The two air duct sections 4121 together form the second sub-air duct 412, and the direction of the air flow of the whole air conditioner can be changed by controlling the communication or the separation of the air duct sections 4121, so that the air supply in different directions can be realized.

The two channel segments 4521 together form an annular air flow channel. The second sub-air flow channels 452 and the second sub-air channels 412 of the air flow channel are all annular, so that the second sub-air flow channels 452 and the second sub-air channels 412 can be matched, and the overall structure of the air channel piece 4 is more compact. The two channel sections 4521 together form a second sub-air flow channel 452 of the air flow channel, and the direction of the air flow of the whole air conditioner can be changed by controlling the opening or closing of the channel sections 4521, so that air supply in different directions can be realized.

For example, the duct section 4121 and the duct section 4521 may each have a semi-circular shape. The air flow areas of the two air duct sections 4121 are the same, and the air flow areas of the two channel sections 4521 are the same, so that the direction of the whole air outlet flow of the air conditioner is conveniently controlled, and the air guiding performance is improved. When the rotational speeds of the first wind wheels 22 are the same, one wind channel section 4121 is controlled to be communicated with the air inlet, so that the deflection angle of the air flow is the same, for example, when the second direction is the up-down direction, the upward deflection angle of the air outlet air flow is the same as the downward deflection angle.

According to some embodiments of the present utility model, referring to fig. 6-7, 10-11, and 15-16, the damper 453 is consistent with the extension shape of the channel section 4521, so that the damper 453 can be matched with the corresponding channel section 4521, which is beneficial for the damper 453 to control the opening and closing of the channel section 4521, and meanwhile, the material can be saved, and the cost can be reduced. For example, the damper 453 and the channel section 4521 may each have a semi-circular shape.

According to some embodiments of the present utility model, referring to fig. 6-7, 10-11, and 15-16, the damper 453 is two corresponding to the two air duct sections 4121, respectively, and the two dampers 453 are controlled independently. The two air doors 453 and the two air duct sections 4121 respectively correspond to each other, the two air doors 453 can be arranged along the second direction, and the two air doors 453 can be respectively and independently controlled to realize independent communication or separation of the two air duct sections 4121, so that change of different wind directions can be realized.

In this embodiment, the description will be given taking the second direction as an example of the up-down direction.

When the first wind wheel 22 works and the upper air door 453 controls the upper air channel section 4121 to be communicated with the air inlet, air enters the casing 10 from the air inlet of the casing 10, flows through the upper air channel section 4121, and then is discharged from the air outlet 13 of the casing 10 and enters the room. Because the lower air duct section 4121 and the air inlet are blocked by the lower air door 453, no air flow in the lower air duct section 4121 passes through, so that the air pressure in the upper air duct section 4121 is far greater than the air pressure of the lower air duct section 4121, the upper air duct section 4121 forms a positive air pressure area, the lower air duct section 4121 forms a negative air pressure area, and the air flow can flow from the positive air pressure area to the negative air pressure area (namely, the air flow can flow from the upper air duct section 4121 to the lower air duct section 4121), so that the direction of the air outlet air flow is deflected downwards, a certain deflection angle is formed, and the air conditioner integrally discharges air downwards. As the rotational speed of the first rotor 22 increases, the downward deflection angle of the airflow increases.

When the first wind wheel 22 works and the lower air door 453 controls the lower air channel section 4121 to be communicated with the air inlet, air enters the casing 10 from the air inlet of the casing 10, flows through the lower air channel section 4121, and is discharged from the air outlet 13 of the casing 10 and enters the room. Because the upper air duct section 4121 and the air inlet are blocked by the upper air door 453, no air flow passes through the upper air duct section 4121, and the air pressure in the lower air duct section 4121 is far greater than the air pressure of the upper air duct section 4121, so that the lower air duct section 4121 forms a positive air pressure area, the upper air duct section 4121 forms a negative air pressure area, and the air flow can flow from the positive air pressure area to the negative air pressure area (i.e. the air flow can flow from the lower air duct section 4121 to the upper air duct section 4121), so that the direction of the air outlet air flow deflects upwards, forms a certain angle with the front and rear directions, and enables the air conditioner to integrally discharge air upwards. As the rotational speed of the first rotor 22 increases, the upward deflection angle of the airflow increases.

When the first wind wheel 22 works and the two air duct sections 4121 are communicated or separated from the air inlet, air can flow through the two air duct sections 4121 at the same time or not flow through the two air duct sections 4121 at the same time, so that the wind pressure of the upper air duct section 4121 is the same as that of the lower air duct section 4121, and therefore, the direction of the air flow cannot deflect, and the air flow can flow out to the right front.

According to some alternative embodiments of the present utility model, referring to fig. 5-17, the wind speed of the outer ring fan blades 222 is different from the wind speed of the inner ring fan blades 221 when the first wind wheel 22 rotates. By setting the relevant parameters of the inner ring fan blade 221 and the outer ring fan blade 222 of the first wind wheel 22, the wind speed of the outer ring fan blade 222 is different from the wind speed of the inner ring fan blade 221. When the first wind wheel 22 rotates, the wind speed of the outer ring fan blade 222 is different from the wind speed of the inner ring fan blade 221, so that the circumferential and radial wind speeds of the air flow flowing through the first wind wheel 22 can be increased, and the air flow is dispersed in the axial direction, so that the wind outlet area of the outer side of the second wind wheel 32 is enlarged, and the second wind wheel 32 has a wind dispersing effect.

According to some embodiments of the present utility model, the number of blades of the outer ring fan blade 222 is not less than the number of blades of the inner ring fan blade 221. The outer ring fan blade 222 and the inner ring fan blade 221 are coaxially arranged, so that the rotation speed of the outer ring fan blade 222 is the same as that of the inner ring fan blade 221. The number of the second blades of the outer ring fan blade 222 is not smaller than the number of the first blades of the inner ring fan blade 221, and the wind outlet capacity of the outer ring fan blade 222 is stronger under the condition that the rotation speed of the outer ring fan blade 222 is the same as that of the inner ring fan blade 221, so that the wind speed of the outer ring fan blade 222 is larger than that of the inner ring fan blade 221, the pressure intensity of the outer ring fan blade 222 is smaller than that of the inner ring fan blade 221, the airflow is diffused to the periphery, and the integral wind dispersing effect is improved.

According to some embodiments of the present utility model, referring to fig. 5, 9, 12, 14 and 17, the blade length of the outer ring fan blade 222 is smaller than the blade length of the inner ring fan blade 221. When the first wind wheel 22 rotates, the second blade length of the outer ring fan blade 222 is smaller than the first blade length of the inner ring fan blade 221, so that the outer ring fan blade 222 can be prevented from being stressed too much, the rotating stability of the first wind wheel 22 is ensured, the structural strength and the structural stability of the first wind wheel 22 are improved, and meanwhile, the overall size of the air conditioner can be reduced, so that the structure is more compact.

According to some embodiments of the present utility model, referring to fig. 5, 9, 12, 14 and 17, the fan assembly 20 further includes a second fan 3, the second fan 3 includes a second wind wheel 32 and a second motor 31 for driving the second wind wheel 32 to rotate, the first motor 21 and the second motor 31 are independently controlled, respectively, and the first motor 21 and the second motor 31 are independently controlled, respectively, so that independent control of the first wind wheel 22 and the second wind wheel 32 can be achieved, for example, the rotation speeds of the first wind wheel 22 and the second wind wheel 32 can be the same or different.

The first wind wheel 22 and the second wind wheel 32 are arranged along the flowing direction of the airflow, so that the overall structure of the fan assembly 20 can be more compact. The direction of rotation of the first rotor 22 is opposite to the direction of rotation of the second rotor 32. I.e. the direction of inclination of the blades of the first rotor 22 is opposite to the direction of inclination of the blades of the second rotor 32. For example, when the rotational direction of the first wind wheel 22 is clockwise, the rotational direction of the second wind wheel 32 is counterclockwise, and when the rotational direction of the first wind wheel 22 is counterclockwise, the rotational direction of the second wind wheel 32 is clockwise. The arrangement can make the driving direction of the first wind wheel 22 and the second wind wheel 32 to the air flow be the same, so that the first wind wheel 22 and the second wind wheel 32 can both make the air flow from the air inlet of the casing 10 to the air outlet 13 of the casing 10, which is beneficial to the stability of the whole air outlet of the air conditioner. For example, the second wind wheel 32 may include a second hub 322 and a second blade 321, where the second blade 321 has a plurality of third blades, and the second blade 321 is disposed on the second hub 322, and the plurality of third blades may be uniformly spaced along an outer peripheral side of the second hub 322. The second hub 322 is connected to an output shaft of the second motor 31.

When the first wind wheel 22 and the second wind wheel 32 work and the rotation speeds of the first wind wheel 22 and the second wind wheel 32 are the same, air enters from the air inlet of the casing 10 under the action of the fan assembly 20, flows through the fan assembly 20 and is discharged from the air outlet 13 of the casing 10. When the air current flows through the fan assembly 20, the fan assembly 20 can boost the air current, can promote the axial wind speed of the air current of the air outlet 13 by a wide margin, make the air current concentrate to can effectively promote the holistic air supply distance of air conditioner, realize long-range air supply, can realize simultaneously refrigerating or heating fast indoor, improve the holistic regulating efficiency to indoor temperature of air conditioner.

When the first wind wheel 22 and the second wind wheel 32 work and the rotation speeds of the first wind wheel 22 and the second wind wheel 32 are different, air enters from the air inlet of the casing 10 under the action of the fan assembly 20, flows through the fan assembly 20, and is discharged from the air outlet 13 of the casing 10. The air flow can be broken up during the process of flowing through the fan assembly 20, so that the air supply effect without wind sensation can be achieved. Compared with the windless effect realized by opening the micropores on the air deflector, the air conditioner can realize windless air supply under the condition of not reducing the air outlet area, and the air outlet area is not reduced, so that the air conditioner can ensure the whole indoor temperature regulation efficiency while realizing the windless air supply effect.

The air duct member 4 has a second air duct 42, the second wind wheel 32 is disposed in the second air duct 42, the second air duct 42 is opposite to and communicated with the first sub-air duct 411, and the second air duct 42 is located at an upstream side of the first sub-air duct 411 and is communicated with the air inlet. For example, the projection of the second air duct 42 on the reference plane may be located within the projection of the first sub air duct 411 on the reference plane or the projection of the second air duct 42 on the reference plane may coincide with the projection of the first sub air duct 411 on the reference plane, the reference plane being perpendicular to the rotational axis of the first wind wheel 22.

Under the action of the fan assembly 20, air can enter the casing 10 from the air inlet, can enter the second air duct 42 through the first sub-air flow channel 451, and can enter the first sub-air duct 411 after flowing through the second wind wheel 32, and can be discharged from the air outlet 13 after flowing through the inner ring fan blades 221 of the first wind wheel 22 and enter the room. When the second sub-airflow channel 452 is opened, air may also enter the second sub-airflow channel 412 through the second sub-airflow channel 452, flow through the outer ring fan blades 222 of the first wind wheel 22, and then be discharged from the air outlet 13 and enter the room.

According to some embodiments of the utility model, referring to fig. 5, 9, 12, 14 and 17, the outer diameter of the first wind wheel 22 is larger than the outer diameter of the second wind wheel 32, i.e. the airflow passing area of the first wind wheel 22 is larger than the airflow passing area of the second wind wheel 32. Because the first wind wheel 22 can have a wind dispersing effect on the air flow when rotating, the air supply without wind sense is realized, and the outer diameter of the first wind wheel 22 is larger than that of the second wind wheel 32, so that the first wind wheel 22 has better wind dispersing effect on the air flow, and the air flow is more dispersed, thereby better realizing the air supply without wind sense.

According to some embodiments of the utility model, referring to fig. 5, 9, 12, 14 and 17, the first wind wheel 22 is located on the downstream side of the second wind wheel 32. The air enters the casing 10 from the air inlet of the casing 10, flows through the second wind wheel 32 and the first wind wheel 22 in sequence, and is discharged from the air outlet 13 of the casing 10 and enters the room. Because the wind speed of the outer ring fan blade 222 of the first wind wheel 22 is greater than the wind speed of the inner ring fan blade 221, under the mutual influence of two different wind speeds, the first wind wheel 22 can be in a flaring shape to discharge air, so that the air flow is diffused to the periphery, the whole air supply range of the air conditioner can be increased, and the whole air dispersing effect is improved. The first wind wheel 22 is located at the downstream side of the second wind wheel 32, that is, the first wind wheel 22 is located at the side close to the air outlet 13, so that the air dispersing effect of the air conditioner is better, no obvious blowing sense exists right in front of the air outlet 13 of the air conditioner, and no-wind-sense air supply is realized.

According to some embodiments of the present utility model, referring to fig. 12 and 17, the fan assembly 20 has a plurality of operation modes, so that the air conditioner can meet different use requirements of users. The plurality of operating modes includes a first operating mode, a second operating mode, and a third operating mode.

In the first operation mode, the first wind wheel 22 and the second wind wheel 32 both rotate at different speeds. Under the action of the fan assembly 20, air enters the casing 10 through the air inlet of the casing 10, flows through the second wind wheel 32 and the first wind wheel 22 in sequence, and is discharged from the air outlet 13 of the casing 10 and enters the room. In the first working mode, the first wind wheel 22 and the second wind wheel 32 are driven by the first motor 21 and the second motor 31 to rotate respectively, and the rotation speeds of the first wind wheel 22 and the second wind wheel 32 are different, so that the air flow can be scattered in the process of flowing through the fan assembly 20, and the air supply effect without wind sensation can be achieved. Because the wind speeds of the inner ring fan blades 221 and the outer ring fan blades 222 of the first wind wheel 22 are different, the first wind wheel 22 has a wind dispersing effect, and when the airflow passing through the second wind wheel 32 flows through the first wind wheel 22, the first wind wheel 22 can carry out secondary wind dispersing on the airflow, so that the wind dispersing effect of the whole fan assembly 20 on the airflow is enhanced.

Therefore, in the first working mode, the fan assembly 20 can raise the radial and circumferential wind speeds of the air flow at the air outlet 13, reduce the axial wind speed of the air flow flowing through the fan assembly 20, and disperse the air flow at the air outlet 13 to the periphery, thereby enlarging the whole air supply range of the air conditioner, ensuring no obvious air feeling in front of the air outlet 13 of the air conditioner, realizing air supply without air feeling, and ensuring the adjusting efficiency of the air conditioner to the indoor temperature.

In the second mode of operation, both the first rotor 22 and the second rotor 32 rotate at the same speed. Under the action of the fan assembly 20, air enters the casing 10 through the air inlet of the casing 10, flows through the second wind wheel 32 and the first wind wheel 22 in sequence, and is discharged from the air outlet 13 of the casing 10 and enters the room. In the second working mode, the first wind wheel 22 and the second wind wheel 32 are driven by the first motor 21 and the second motor 31 to rotate respectively, and the rotation speeds of the first wind wheel 22 and the second wind wheel 32 are the same, when the air flow passes through the second wind wheel 32 and the first wind wheel 22, the pressure of the air flow is greatly increased by the second wind wheel 32 and the first wind wheel 22, and the supercharging effect of the fan assembly 20 on the air flow is realized.

Therefore, in the second working mode, the fan assembly 20 can raise the axial wind speed of the air flow at the air outlet 13, reduce the radial and circumferential wind speeds of the air flow flowing through the fan assembly 20, and make the air flow at the air outlet 13 more concentrated, so that the whole air supply distance of the air conditioner can be effectively raised, and meanwhile, the adjusting efficiency of the air conditioner to the indoor temperature can be improved, and the effect of rapid indoor refrigeration or heating can be realized.

In the second mode of operation, the second rotor 32 is stopped and the first rotor 22 is rotated. Under the action of the fan assembly 20, air enters the casing 10 through the air inlet of the casing 10, flows through the second wind wheel 32 and the first wind wheel 22 in sequence, and is discharged from the air outlet 13 of the casing 10 and enters the room. In the third working mode, the second wind wheel 32 stops rotating, the first wind wheel 22 rotates under the drive of the first motor 21, and air flows from the air inlet to the air outlet 13 of the casing 10 only under the drive of the first wind wheel 22, so that the close-range air supply of the air conditioner can be realized, the overall power of the air conditioner is reduced, and the energy consumption is saved. Because the wind speeds of the inner ring fan blades 221 and the outer ring fan blades 222 of the first wind wheel 22 are different, the first wind wheel 22 has a wind dispersing effect on the airflow, and therefore indoor close-range wind-sense-free air supply can be realized.

Therefore, in the third working mode, the fan assembly 20 can realize close-range air supply of the air conditioner, so that the axial air speed of the air flow at the air outlet 13 is smaller, the air flow at the air outlet 13 is provided with a wind dispersing effect, and meanwhile, the overall power of the air conditioner can be reduced, and the energy consumption is saved.

The first operation mode of the fan assembly 20 can realize a long-distance air supply effect without wind sense; the second working mode can realize long-distance air supply, and can quickly cool or heat the room; the third working mode can realize the close-range wind-sense-free air supply effect. When the air conditioner is in operation, different operation modes of the fan assembly 20 can be selected according to different use requirements of users.

For example, in the embodiment of the present utility model, after the indoor temperature reaches the user set temperature, the fan assembly 20 may be automatically switched from the first working mode to the third working mode, or the fan assembly 20 may be automatically switched from the second working mode to the third working mode, so that the overall power of the air conditioner may be reduced while the user requirement is satisfied, and the energy consumption is saved.

According to some embodiments of the utility model, referring to fig. 12 and 17, in the first mode of operation, the rotational speed of the first rotor 22 is greater than the rotational speed of the second rotor 32. In the first working mode, the first wind wheel 22 and the second wind wheel 32 are driven by the first motor 21 and the second motor 31 to rotate respectively, and the rotation speeds of the first wind wheel 22 and the second wind wheel 32 are different, so that air flows from the air inlet to the air outlet 13 under the driving of the first wind wheel 22 and the second wind wheel 32.

Because the wind speeds of the inner ring fan blades 221 and the outer ring fan blades 222 of the first wind wheel 22 are different, the first wind wheel 22 has a good wind dispersing effect, and in the first working mode, the rotating speed of the first wind wheel 22 is higher than that of the second wind wheel 32, so that the whole wind dispersing effect of the fan assembly 20 is better, the radial and circumferential wind speeds of the air flow at the air outlet 13 are greatly improved, the axial wind speed of the air flow flowing through the fan assembly 20 is reduced, the air flow at the air outlet 13 is more dispersed, the whole air supply range of the air conditioner is further enlarged, no obvious air blowing sense is caused right in front of the air outlet 13 of the air conditioner, the air supply without wind sense is realized, and meanwhile, the regulating efficiency of the air conditioner to the indoor temperature can be ensured.

According to some embodiments of the utility model, referring to fig. 12 and 17, in the second mode of operation, the rotational speed of the first rotor 22 and the rotational speed of the second rotor 32 are both greater than 500rpm. In the second working mode, the first wind wheel 22 and the second wind wheel 32 are driven by the first motor 21 and the second motor 31 to rotate respectively, the rotation speeds of the first wind wheel 22 and the second wind wheel 32 are the same, and air flows from the air inlet to the air outlet 13 under the driving of the first wind wheel 22 and the second wind wheel 32.

The rotational speed of the first wind wheel 22 and the rotational speed of the second wind wheel 32 are both greater than 500rpm, so that the airflow at the air outlet 13 is more concentrated in the axial direction, the integral air supply distance of the air conditioner can be effectively improved, the indoor temperature adjusting efficiency of the air conditioner can be improved, and the indoor rapid refrigerating or heating effect is realized.

According to some embodiments of the utility model, referring to fig. 12 and 17, in the third mode of operation, the rotational speed of the second rotor 32 is greater than 500rpm. In the third operation mode, the first wind wheel 22 stops rotating, the second wind wheel 32 rotates under the driving of the second motor 31, and air flows from the air inlet to the air outlet 13 of the casing 10 under the driving of the second wind wheel 32.

In the third working mode, the rotation speed of the second wind wheel 32 is greater than 500rpm, so that when the air conditioner realizes air supply without wind sensation, the whole air supply distance can be increased without reducing the air outlet area, and meanwhile, the indoor temperature regulation efficiency of the air conditioner is ensured.

According to some embodiments of the present utility model, referring to fig. 1 to 4, 8, 12, 13 and 17, the air intake includes a first air intake 11 and a second air intake 12, each of the first air intake 11 and the second air intake 12 is in communication with the room, and the room air may enter the cabinet 10 through the first air intake 11 and the second air intake 12. The first air inlet 11 is located at the upstream side of the heat exchanger component 30, the second air inlet 12 is located at the downstream side of the heat exchanger component 30, and since the first air inlet 11 is located at the upstream side of the heat exchanger component 30, air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 under the action of the fan assembly 20, air after heat exchange with the heat exchanger component 30 flows through the second fan 3 and the first fan 2 in sequence, and finally is discharged from the air outlet 13 of the casing 10 into a room.

Since the second air intake 12 is located on the downstream side of the heat exchanger component 30, air entering the housing 10 from the second air intake 12 does not flow through the heat exchanger component 30, but is discharged into the room from the air outlet 13 of the housing 10 after flowing through the fan assembly 20 by the fan assembly 20. The air entering from the second air inlet 12 can be mixed with the air entering from the first air inlet 11 and subjected to heat exchange at the air outlet 13, so that the temperature difference between the air discharged from the air outlet 13 and the indoor air can be reduced, the indoor temperature layering is effectively reduced, the uniformity of the indoor temperature is greatly improved, and the whole air outlet of the air conditioner is more comfortable.

For example, when the first wind wheel 22 and the second wind wheel 32 both rotate and the rotation speeds of the first wind wheel 22 and the second wind wheel 32 are different or only the second wind wheel 32 works, that is, when the air conditioner realizes air supply without wind sensation, the first air inlet 11 and the second air inlet 12 are both communicated with the room, so that the indoor air is mixed with the air after heat exchange and then is discharged from the air outlet 13 and enters the room, the temperature difference between the air discharged from the air outlet 13 and the indoor air can be reduced, the overhigh or overlow temperature of the whole air outlet air flow is avoided, and the use comfort of a user is further improved.

The second air duct 42 is communicated with the first air inlet 11, and a movable air door 453 is arranged between at least one air duct section 4121 and the first air inlet 11, so as to control the communication and the separation between the corresponding air duct section 4121 and the first air inlet 11. For example, a movable damper 453 is provided between both air duct sections 4121 and the first air inlet 11, or a movable damper 453 is provided between one air duct section 4121 and the first air inlet 11. When the movable damper 453 is arranged between one air duct section 4121 and the air inlet, the deflection of the air outlet air flow in one direction can be realized, and when the movable damper 453 is arranged between the two air duct sections 4121 and the air inlet, the deflection of the air outlet air flow in two directions can be realized.

When the fan assembly 20 is operated and only one air duct section 4121 is in communication with the first air inlet 11, air enters the housing 10 from the first air inlet 11 of the housing 10, flows through the heat exchanger component 30 and exchanges heat with the heat exchanger component 30, and after flowing through the air duct section 4121 in communication with the first air inlet 11, the air is discharged from the air outlet 13 of the housing 10 and enters the room. Since no air flow passes through the air duct section 4121 isolated from the first air inlet 11, the air pressure in the air duct section 4121 communicated with the first air inlet 11 is far greater than the air pressure of the air duct section 4121 isolated from the first air inlet 11, so that the air duct section 4121 communicated with the first air inlet 11 forms a positive air pressure area, the air flow can flow from the positive air pressure area to the negative air pressure area due to the negative air pressure area formed by the air duct section 4121 isolated from the first air inlet 11, and the air flow is deflected, so that the direction of the air flow of the air conditioner can be adjusted. As the rotational speed of the first rotor 22 increases, the deflection angle of the airflow increases.

When the first wind wheel 22 works and both wind channel segments 4121 are communicated with the first air inlet 11, both the first sub wind channel 411 and the second sub wind channel 412 are communicated with the first air inlet 11. Air enters the machine shell 10 from the first air inlet 11 of the machine shell 10, flows through the heat exchanger component 30 and exchanges heat with the heat exchanger component 30, and after the heat exchanged air sequentially flows through the second air duct 42 and the first air duct 41, the air is discharged from the air outlet 13 of the machine shell 10 and enters a room. The two air duct sections 4121 are provided with air flow, so that the air pressure in the two air duct sections 4121 is the same, and the air outlet air flows to the right front.

When the first wind wheel 22 works and the two wind channel sections 4121 are both separated from the first air inlet 11, the first sub wind channel 411 of the first wind channel 41 is communicated with the first air inlet 11, air enters the casing 10 from the first air inlet 11 of the casing 10, flows through the heat exchanger component 30 and exchanges heat with the heat exchanger component 30, and after sequentially flowing through the second wind channel 42 and the first sub wind channel 411 of the first wind channel 41, the air is discharged from the air outlet 13 of the casing 10 and enters a room. No air flow passes through the two air duct sections 4121, so that the air pressure in the two air duct sections 4121 is the same, and the air outlet air flows to the right front.

For example, when the second direction is the up-down direction, a movable damper 453 is disposed between the two air duct segments 4121 and the first air inlet 11, and the damper 453 can control the communication and the separation between the corresponding air duct segments 4121 and the air inlets. When the first wind wheel 22 works and the lower air duct section 4121 is communicated with the first air inlet 11, a positive air pressure area is formed in the lower air duct section 4121, and a negative air pressure area is formed in the upper air duct section 4121, so that the flow of the air outlet air can be deflected upwards, and the flow of the air outlet air can be deflected upwards by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and the upper air duct section 4121 is communicated with the first air inlet 11, a positive air pressure area is formed in the upper air duct section 4121, and a negative air pressure area is formed in the lower air duct section 4121, so that the flow of the air outlet air can deflect downwards, and the flow of the air outlet air can deflect downwards by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and both air duct sections 4121 are communicated or cut off from the first air inlet 11, the air pressure in the upper air duct section 4121 is the same as the air pressure in the lower air duct section 4121, so that the air outlet air can flow to the right front.

When the second direction is the left-right direction, movable air doors 453 are arranged between the two air duct sections 4121 and the first air inlet 11, and the air doors 453 can control the communication and the separation between the corresponding air duct sections 4121 and the first air inlet 11. When the first wind wheel 22 works and the right air duct section 4121 is communicated with the first air inlet 11, a positive air pressure area is formed in the right air duct section 4121, and a negative air pressure area is formed in the left air duct section 4121, so that the air outlet flow can deflect leftwards, and the air outlet flow can deflect leftwards by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and the left air channel section 4121 is communicated with the first air inlet 11, a positive air pressure area is formed in the left air channel section 4121, and a negative air pressure area is formed in the right air channel section 4121, so that the flow direction of the air outlet air can be deflected to the right, and the flow direction of the air outlet air can be deflected to the right by 0-40 degrees along with the change of the rotating speed of the first wind wheel 22. When the first wind wheel 22 works and both air duct sections 4121 are communicated or cut off from the first air inlet 11, the air pressure in the left air duct section 4121 is the same as the air pressure in the right air duct section 4121, so that the air outlet air can flow to the right front.

The air conditioner further includes a switching door 17 for communicating or blocking the second air inlet 12 with the second sub-duct 412. When the second air inlet 12 is opened by the switch door 17, indoor air can enter the casing 10 through the second air inlet 12, flow through the fan assembly 20, and then be discharged from the air outlet 13 of the casing 10 into the room. The air entering from the second air inlet 12 can be mixed with the air entering from the first air inlet 11 and subjected to heat exchange at the air outlet 13, so that the temperature difference between the air discharged from the air outlet 13 and the indoor air can be reduced, the indoor temperature layering is effectively reduced, the uniformity of the indoor temperature is greatly improved, and the air outlet of the whole machine is more comfortable.

When the switch door 17 closes the second air inlet 12, indoor air only enters the casing 10 through the first air inlet 11, and flows through the heat exchanger component 30 under the action of the fan component 20, exchanges heat with the heat exchanger component 30, and the air after heat exchange sequentially flows through the second fan 3 and the first fan 2, finally is discharged from the air outlet 13 of the casing 10 into the room, so that the cooling capacity or heat of the whole air outlet flow of the air conditioner can be improved, the indoor temperature regulation efficiency is improved, and the effect of the whole air conditioner on indoor rapid cooling or heating is realized.

According to some embodiments of the present utility model, referring to fig. 12 and 17, the first direction is the front-rear direction, and the first wind wheel 22 and the second wind wheel 32 are arranged along the front-rear direction, so that the overall structure of the fan assembly 20 can be more compact. The air outlet 13 is formed at a front side wall of the cabinet 10, the first air inlet 11 is formed at a rear side wall of the cabinet 10, the second air inlet 12 is formed at a left side wall and/or a right side wall of the cabinet 10, for example, the second air inlet 12 may be formed at a left side wall of the cabinet 10, the second air inlet 12 may be formed at a right side wall of the cabinet 10, or the second air inlet 12 may be formed at left and right side walls of the cabinet 10. The heat exchanger component 30 is located between the first air intake 11 and the fan assembly 20. When the fan assembly 20 works, indoor air can enter the casing 10 from the first air inlet 11 on the rear side wall of the casing 10, the air entering from the first air inlet 11 can pass through the heat exchanger component 30 and exchange heat with the heat exchanger component 30, and after the air exchange heat with the heat exchanger sequentially flows through the second wind wheel 32 and the first wind wheel 22, the air is discharged from the air outlet 13 on the front side wall of the casing 10 and enters the room.

Indoor air can also enter the casing 10 from the second air inlet 12 of the casing 10, and because the heat exchanger component 30 is not arranged between the second air inlet 12 and the fan assembly 20, air entering the casing 10 from the second air inlet 12 can not exchange heat through the heat exchanger component 30, and air entering the casing 10 from the second air inlet 12 flows through the fan assembly 20 and then is directly discharged from the air outlet 13 and enters the room.

A heat exchange air duct 15 is defined between the rear side of the air duct member 4 and the heat exchanger component 30, and the heat exchange air duct 15 communicates with the first air inlet 11 and the second air duct 42. Under the action of the fan assembly 20, indoor air can enter the casing 10 from the first air inlet 11, the air entering from the first air inlet 11 exchanges heat with the heat exchanger component 30, the air after heat exchange can sequentially enter the heat exchange air duct 15 and the second air duct 42, flow through the first wind wheel 22 and then enter the first sub-air duct 411 of the first air duct 41, flow through the inner ring fan blades 221 of the first wind wheel 22 and then are discharged from the air outlet 13 and then enter the room, and therefore the overall air conditioner is adjusted to indoor temperature.

An annular communication air duct 14 is defined between the outer peripheral side of the air duct member 4 and the casing 10, the communication air duct 14 is located at the rear side of the second sub-air duct 412 and surrounds the outer peripheral side of the second air duct 42, and the communication air duct 14 is suitable for communicating the first air inlet 11 with the second sub-air duct 412 and for communicating the second air inlet 12 with the second sub-air duct 412.

When the second sub-duct 412 is only connected to the first air inlet 11, the connecting duct 14 is used for connecting the first air inlet 11 and the second sub-duct 412. The indoor air entering the shell 10 from the first air inlet 11 can flow through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, the air after heat exchange sequentially flows through the heat exchange air duct 15, the second air duct 42 and the first sub-air duct 411 of the first air duct 41, meanwhile, the air after heat exchange can also sequentially flow through the second sub-air duct 412 communicated with the air duct 14 and the first air duct 41, and finally the air after heat exchange is discharged from the air outlet 13 of the shell 10 to enter the room, so that the cooling capacity or the heat of the air flow of the whole air outlet of the air conditioner can be improved, the indoor temperature regulation efficiency is improved, and the effect of the whole air conditioner on indoor rapid cooling or heating is realized.

When the second sub-air duct 412 is only communicated with the second air inlet 12, the communicating air duct 14 is used for communicating the second air inlet 12 with the second sub-air duct 412. Indoor air entering the machine shell 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, the air after heat exchange sequentially flows through the heat exchange air duct 15, the second air duct 42 and the first sub-air duct 411 of the first air duct 41, and meanwhile, indoor air entering the machine shell 10 from the second air inlet 12 flows through the air duct 14 and the second sub-air duct 412 of the second air duct 42 and then is discharged from the air outlet 13 of the machine shell 10 into a room. The indoor air entering from the second air inlet 12 can be mixed with the air entering from the first air inlet 11 and subjected to heat exchange at the air outlet 13, so that the temperature difference between the air discharged from the air outlet 13 and the indoor air can be reduced, the indoor temperature layering is effectively reduced, the uniformity of the indoor temperature is greatly improved, and the whole machine is more comfortable in air outlet.

When the second sub-air duct 412 is communicated with the first air inlet 11 and the second air inlet 12, the communication air duct 14 is communicated with the first air inlet 11 and the second sub-air duct 412 and the second air inlet 12 and the second sub-air duct 412. Indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, the air after heat exchange flows through the heat exchange air duct 15, the second air duct 42 and the first air duct 41 in sequence, the air after heat exchange also flows through the second sub-air duct 412 which is communicated with the air duct 14 and the first air duct 41 in sequence, and finally the air after heat exchange is discharged from the air outlet 13 of the casing 10 to enter a room. Meanwhile, the indoor air entering the shell 10 from the second air inlet 12 can flow through the second sub-air duct 412 of the communication air duct 14 and the first air duct 41, the air after heat exchange and the indoor air are mixed at the positions of the communication air duct 14 and the air outlet 13, the mixed air is discharged from the air outlet 13 and enters the room, the uniformity of the indoor temperature can be improved, the whole air inlet and outlet of the air conditioner can be increased, and the whole indoor temperature adjusting efficiency of the air conditioner is ensured.

When the second sub-air duct 412 is isolated from the first air inlet 11 and the second air inlet 12, no air flow passes through the communication air duct 14, and the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and the air after heat exchange flows through the heat exchange air duct 15, the second air duct 42 and the first sub-air duct 411 of the first air duct 41 in sequence, and finally the air is discharged from the air outlet 13 of the casing 10 into the room.

For example, in the embodiment of the present utility model, the air duct member 4 includes the first air guiding ring 43 and the second air guiding ring 44 arranged along the front-rear direction, and the first air guiding ring 43 and the second air guiding ring 44 can increase the structural strength and rigidity of the blower assembly 20 as a whole. For example, the first wind-guiding ring 43 may be connected to the second wind-guiding ring 44 by a connecting rib. The first wind guiding ring 43 is located on the downstream side of the second wind guiding ring 44, the inner diameter of the first wind guiding ring 43 is larger than the inner diameter of the second wind guiding ring 44, the first wind wheel 22 is arranged in the first wind guiding ring 43, the second wind wheel 32 is arranged in the second wind guiding ring 44, a second air duct 42 is defined between the second wind guiding ring 44 and the second hub 322, a second sub air duct 412 of the first air duct 41 is defined between the first wind guiding ring 43 and the connecting ring 223, and a first sub air duct 411 of the first air duct 41 is defined between the connecting ring 223 and the first hub 224.

According to some embodiments of the present utility model, referring to fig. 12 and 17, a portion of the cabinet 10 opposite to the communication duct 14 is formed with the second air inlet 12, the opening and closing door 17 is located in the cabinet 10 and adapted to move in the first direction, and the opening and closing door 17 moves between the first position and the second position. The second air inlet 12 is communicated or separated from the second sub-air duct 412 by the switch door 17 being located at different positions, so that the structure is simple and the operation is convenient.

For example, when the switch door 17 is required to be switched from the first position to the second position, the switch door 17 may be moved forward until all of the switch door 17 is located between the second air inlet 12 and the communication duct 14 and the front end of the switch door 17 abuts against the outer peripheral wall of the first duct 41; when the switch door 17 is required to be switched from the second position to the first position, the switch door 17 may be moved to the rear side until the switch door 17 is offset from the second air inlet 12 and located between the cabinet and the outer peripheral wall of the first air duct 41.

When the switch door 17 is at the first position, at least part of the switch door 17 is located between the second air inlet 12 and the communication air duct 14, that is, all of the switch door 17 is located between the second air inlet 12 and the communication air duct 14 or part of the switch door 17 is located between the second air inlet 12 and the communication air duct 14, and one end of the switch door 17 in the first direction abuts against the outer peripheral wall of the first air duct 41, for example, the front end of the switch door 17 abuts against the outer peripheral wall of the first air duct 41 to isolate the second sub-air duct 412 from the second air inlet 12.

When the switch door 17 is at the first position, the second sub-air duct 412 is separated from the second air inlet 12, indoor air enters the casing 10 through the first air inlet 11, and flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30 under the action of the fan component 20, most of the air after heat exchange flows through the heat exchange air duct 15, flows through the second air duct 32 and the first sub-air duct 411 of the first air duct 41 in sequence, flows to the air outlet 13 and enters the room, and a small amount of the air flows through the second sub-air duct 412 of the communication air duct 14 and the first air duct 41 in sequence, flows to the air outlet 13 and enters the room, and the air flowing out of the air outlet is the air after heat exchange, so that the cooling capacity or heat of the whole air outlet flow of the air conditioner can be improved, the indoor temperature adjusting efficiency is improved, and the effect of the whole air conditioner on indoor rapid cooling or heating is realized.

When the switch door 17 is at the second position, the switch door 17 is staggered from the second air inlet 12 and is located between the casing and the outer peripheral wall of the first air duct 41, so as to communicate the second sub-air duct 412 with the second air inlet 12.

When the switch door 17 is at the second position, the second sub-air duct 412 is communicated with the second air inlet 12, the indoor air can enter the casing 10 through the first air inlet 11, and under the action of the fan assembly 20, the indoor air can flow through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, after passing through the heat exchange air duct 15, most of the air flows to the air outlet 13 after passing through the second air duct 32 and the first sub-air duct 411 of the first air duct 41 in sequence, and the rest of the air flows to the air outlet 13 after passing through the second sub-air duct 412 of the communication air duct 14 and the first air duct 41 in sequence. Meanwhile, indoor air can enter the casing through the second air inlet 12, and air entering the casing from the second air inlet 12 flows through the communication air duct 14 and the second sub-air duct 412 of the first air duct 41 in sequence and then flows to the air outlet 13. Finally, the indoor air entering the shell 10 from the second air inlet 12 is mixed with the air after heat exchange at the air outlet, and the mixed air flows into the room, so that the temperature difference between the air discharged from the air outlet 13 and the indoor air can be reduced, the indoor temperature is more uniform, the air outlet air flow temperature of the whole air conditioner is prevented from being too high or too low, and the use comfort of a user is improved.

Therefore, when the switch door 17 is at the first position, all the air entering the room from the air outlet 13 is the air after heat exchange, so that the cooling capacity or heat of the air flow of the whole air outlet of the air conditioner can be improved, the indoor temperature regulating efficiency is improved, and the effect of the whole air conditioner on indoor rapid cooling or heating is realized; when the switch door 17 is at the second position, the air entering from the second air inlet 12 is mixed with the air after heat exchange, so that the air entering the room from the air outlet 13 is the mixed air, the temperature difference between the air discharged from the air outlet 13 and the indoor air is reduced, the indoor temperature is more uniform, the air outlet air flow temperature of the whole air conditioner is prevented from being too high or too low, and the use comfort of a user is improved.

According to some embodiments of the present utility model, referring to fig. 4, the cabinet 10 is formed with a second sliding groove 19 extending in a first direction, the opening and closing door 17 is provided with a second sliding block 171, the second sliding block 171 is accommodated in the second sliding groove 19 and is slidable along the extending direction of the second sliding groove 19, the second sliding groove 19 may guide the second sliding block 171, and the second sliding block 171 may slide in the second sliding groove 19 along the first direction, thereby guiding the movement of the opening and closing door 17, and the structure is simple and the operation is convenient.

Under the first working mode, the first wind wheel 22 and the second wind wheel 32 rotate, the rotating speeds of the first wind wheel 22 and the second wind wheel 32 are different, the radial and circumferential wind speeds of the air flow at the air outlet 13 can be improved, the axial wind speed of the air flow flowing through the fan assembly 20 is reduced, the air flow at the air outlet 13 is more dispersed, the whole air supply range of the air conditioner is enlarged, no obvious air blowing sense exists right in front of the air outlet 13 of the air conditioner, no-air-sense air supply is realized, and meanwhile, the adjusting efficiency of the air conditioner to the indoor temperature can be ensured.

Under the second working mode, the first wind wheel 22 and the second wind wheel 32 rotate, the rotating speeds of the first wind wheel 22 and the second wind wheel 32 are the same, the fan assembly 20 can improve the axial wind speed of the air flow at the air outlet 13, reduce the radial and circumferential wind speeds of the air flow flowing through the fan assembly 20, and enable the air flow at the air outlet 13 to be more concentrated, so that the whole air supply distance of the air conditioner can be effectively improved, and meanwhile, the indoor temperature adjusting efficiency of the air conditioner can be improved.

In the second working mode, the second wind wheel 32 stops and the first wind wheel 22 rotates, the fan assembly 20 can realize close-range air supply of the air conditioner, the axial wind speed of the air flow at the air outlet 13 is smaller, the air flow at the air outlet 13 has a wind dispersing effect, and meanwhile, the integral power of the air conditioner can be reduced, and the energy consumption is saved.

The air conditioner has a mode of mixing air without wind sense and a mode of full heat exchange air outlet.

Wherein, in the mixed wind no-wind mode, the second air inlet 12 is opened, and the fan assembly 20 is in the first working mode or the third working mode. When the second air inlet 12 is opened and the fan assembly 20 is in the first working mode, the radial and circumferential wind speeds of the air flow at the air outlet 13 can be improved, the air flow at the air outlet 13 is more dispersed in the axial direction, so that the whole air supply range of the air conditioner is enlarged, no obvious air blowing sense is caused right in front of the air outlet 13 of the air conditioner, meanwhile, the temperature difference between the air exhausted from the air outlet 13 and the indoor air is reduced, the indoor temperature layering is effectively reduced, the uniformity of the indoor temperature is greatly improved, and the air outlet of the whole air conditioner is more comfortable.

When the second air inlet 12 is opened and the fan assembly 20 is in the third working mode, close-range air supply of the air conditioner can be realized, the axial air speed of the air flow at the air outlet 13 is smaller, the air flow has a wind dispersing effect, the whole power of the air conditioner can be reduced, the energy consumption is saved, meanwhile, the temperature difference between the air exhausted from the air outlet 13 and the indoor air is reduced, the indoor temperature layering is effectively reduced, the uniformity of the indoor temperature is greatly improved, and accordingly the air outlet of the whole air conditioner is more comfortable.

Therefore, in the mode of mixing wind and no wind sensation, the axial wind speed of the air flow at the air outlet 13 can be smaller, and the air flow is more dispersed in the axial direction, so that no obvious wind sensation exists right in front of the air outlet 13 of the air conditioner, meanwhile, the temperature difference between the air discharged from the air outlet 13 and the indoor air is reduced, the indoor temperature layering is effectively reduced, the uniformity of the indoor temperature is greatly improved, and the air outlet of the whole air conditioner is more comfortable.

In the full heat exchange air outlet mode, the second air inlet 12 is closed and the fan assembly 20 is in the second or third mode of operation. When the second air inlet 12 is closed and the fan assembly 20 is in the second working mode, the axial air speed of the air flow at the air outlet 13 can be increased, so that the air flow at the air outlet 13 is more concentrated in the axial direction, the whole air supply distance of the air conditioner can be effectively increased, the adjusting efficiency of the air conditioner to the indoor temperature can be improved, and the indoor rapid heating or refrigerating effect can be realized.

When the second air inlet 12 is closed and the fan assembly 20 is in the third working mode, close-range air supply of the air conditioner can be realized, the axial air speed of the air flow at the air outlet 13 is smaller, the air flow at the air outlet 13 has an air dispersing effect, the whole power of the air conditioner can be reduced, the energy consumption is saved, the adjusting efficiency of the air conditioner to the indoor temperature can be improved, and the indoor rapid heating or refrigerating effect is realized.

Therefore, in the full heat exchange air outlet mode, the indoor temperature adjusting efficiency of the air conditioner can be improved, and the indoor rapid heating or refrigerating effect is realized.

For example, in some embodiments of the present utility model, the second direction is taken as the up-down direction to describe different working conditions of the air conditioner in the air mixing non-wind sensing mode. The two air duct sections 4121 together form the second sub-air duct 412, the two air doors 453 are respectively arranged at the two channel sections 4521, the two channel sections 4521 can be arranged at intervals along the up-down direction, the two channel sections 4521 respectively correspond to the two air duct sections 4121, the channel sections 4521 are used for communicating the corresponding air duct sections 4121 with the first air inlet 11, the communicating air duct 14 is positioned between the channel sections 4521 and the air duct sections 4121, and the air doors 453 can open or close the corresponding channel sections 4521 through up-down movement, so that the corresponding air duct sections 4121 are communicated or separated from the first air inlet 11.

In the mode of mixing air without air feeling, the switch door 17 opens the second air inlet 12, if the air door 453 opens only the upper channel section 4521, i.e. the upper air channel section 4121 is communicated with the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and after the heat exchanged air flows through the heat exchange air channel 15, most of the air flows sequentially through the second air channel 42 and the first sub-air channel 411 and flows to the air outlet 13 of the casing 10. A small portion of the air flow enters the communication duct 14 through the upper open duct section 4521, flows through the upper duct section 4121, and then flows to the air outlet 13 of the casing 10. Meanwhile, the indoor air can enter the communication air duct 14 from the second air inlet 12, and flow to the air outlet 13 after flowing through the second sub-air duct 412. The indoor air entering from the second air inlet 12 may be mixed with the heat-exchanged air at the air outlet 13, and the mixed air is discharged from the air outlet 13 of the casing 10 into the room.

If the damper 453 opens only the lower duct section 4521, i.e. the lower duct section 4121, to communicate with the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and after passing through the heat exchange duct 15, most of the air flows through the second duct 42 and the first sub duct 411 in sequence, and flows to the air outlet 13 of the casing 10. A small portion of the air flow enters the communication duct 14 through the duct section 4521 opened at the lower side, and flows to the air outlet 13 of the casing 10 after passing through the duct section 4121 at the lower side. Meanwhile, the indoor air can enter the communication air duct 14 from the second air inlet 12, and flow to the air outlet 13 after flowing through the second sub-air duct 412. The indoor air entering from the second air inlet 12 may be mixed with the heat-exchanged air at the air outlet 13, and the mixed air is discharged from the air outlet 13 of the casing 10 into the room.

If the damper 453 opens the two channel sections 4521, that is, the two air channel sections 4121 are both communicated with the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and after the heat exchange air flows through the heat exchange air channel 15, most of the air flows through the second air channel 42 and the first sub air channel 411 in sequence and flows to the air outlet 13 of the casing 10. A small portion of the air flow enters the communication duct 14 through the duct section 4521 and flows to the air outlet 13 of the casing 10 after flowing through the second sub-duct 412. Meanwhile, the indoor air can enter the communication air duct 14 from the second air inlet 12, and flow to the air outlet 13 after flowing through the second sub-air duct 412. The indoor air entering from the second air inlet 12 may be mixed with the heat-exchanged air at the air outlet 13, and the mixed air is discharged from the air outlet 13 of the casing 10 into the room.

If the damper 453 closes both the two channel sections 4521, that is, both the two air channel sections 4121 are blocked from the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and the air after heat exchange flows through the heat exchange air channel 15, the second air channel 42 and the first sub-air channel 411 in sequence, and flows to the air outlet 13 of the casing 10. Meanwhile, the indoor air can enter the communication air duct 14 from the second air inlet 12, and flow to the air outlet 13 of the casing 10 after flowing through the second sub-air duct 412. The indoor air entering from the second air inlet 12 may be mixed with the heat-exchanged air at the air outlet 13, and the mixed air is discharged from the air outlet 13 of the casing 10 into the room.

Therefore, in the mode of mixing wind and having no wind sense, the temperature difference between the air discharged from the air outlet 13 and the indoor air can be reduced, the indoor temperature layering is effectively reduced, the uniformity of the indoor temperature is greatly improved, the condition that the temperature of the whole air outlet air flow of the air conditioner is too high or too low is avoided, and the use comfort of a user is improved. In addition, in the mode of mixing wind without wind sensation, the second air inlet 12 is opened, so that air flows always pass through the two air duct sections 4121, and therefore, no wind pressure difference exists between the two air duct sections 4121, and the communication or the separation of the two air duct sections 4121 does not have the effect of changing the air flow of the air outlet.

For another example, in some embodiments of the present utility model, the second direction is taken as the up-down direction to describe different working conditions of the air conditioner in the full heat exchange air outlet mode. The two air duct sections 4121 together form the second sub-air duct 412, the two air doors 453 are respectively arranged at the two channel sections 4521, the two channel sections 4521 can be arranged at intervals along the up-down direction, the two channel sections 4521 respectively correspond to the two air duct sections 4121, the channel sections 4521 are used for communicating the corresponding air duct sections 4121 with the first air inlet 11, the communicating air duct 14 is positioned between the channel sections 4521 and the air duct sections 4121, and the air doors 453 can open or close the corresponding channel sections 4521 through up-down movement, so that the corresponding air duct sections 4121 are communicated or separated from the first air inlet 11.

In the full heat exchange air-out mode, the switch door 17 closes the second air inlet 12, if the air door 453 opens only the upper channel section 4521, i.e. the upper air channel section 4121 is communicated with the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and after the heat exchanged air flows through the heat exchange air channel 15, most of the air flows sequentially flow through the second air channel 42 and the first sub-air channel 411, and then is discharged from the air outlet 13 of the casing 10 into a room. A small portion of the air flow enters the communication duct 14 through the upper duct section 4521, and after passing through the upper duct section 4121, is discharged from the air outlet 13 of the casing 10 into the room. Because the lower air duct section 4121 is isolated from the first air inlet 11, the upper air duct section 4121 forms a positive air pressure area, and the lower air duct section 4121 forms a negative air pressure area, so that the overall air outlet flow can deflect downwards.

If the damper 453 opens only the lower duct section 4521, i.e. the lower duct section 4121, to communicate with the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and after passing through the heat exchange duct 15, most of the air flows sequentially through the second duct 42 and the first sub duct 411, and then is discharged from the air outlet 13 of the casing 10 into the room. A small portion of the air flow enters the communication duct 14 through the lower duct section 4521 and is discharged from the air outlet 13 of the housing 10 into the room after passing through the lower duct section 4121. Because the upper air duct section 4121 is isolated from the first air inlet 11, the lower air duct section 4121 forms a positive air pressure area, and the upper air duct section 4121 forms a negative air pressure area, so that the overall air outlet flow direction can be deflected upwards.

If the damper 453 opens both the two channel sections 4521, that is, both the two air channel sections 4121 are communicated with the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and after the heat exchanged air flows through the heat exchange air channel 15, most of the air flows sequentially flow through the second air channel 42 and the first sub-air channel 411, and then is discharged from the air outlet 13 of the casing 10 into the room. A small portion of the air flow enters the communication duct 14 through the duct section 4521, and after flowing through the second sub-duct 412, is discharged from the air outlet 13 of the casing 10 into the room. Because both air duct sections 4121 are communicated with the first air inlet 11, the air pressure in the upper air duct section 4121 is the same as the air pressure in the lower air duct section 4121, so that the whole air outlet air flows to the right front and flows out.

If the damper 453 closes both the two channel sections 4521, that is, both the two air channel sections 4121 are blocked from the first air inlet 11, the indoor air entering the casing 10 from the first air inlet 11 flows through the heat exchanger component 30 to exchange heat with the heat exchanger component 30, and the air after heat exchange flows through the heat exchange air channel 15, the second air channel 42 and the first sub-air channel 411 in sequence, and then is discharged from the air outlet 13 of the casing 10 into the room. Because both air duct sections 4121 are isolated from the first air inlet 11, the air pressure in the upper air duct section 4121 is the same as the air pressure in the lower air duct section 4121, so that the whole air outlet air flows to the right front and flows out.

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

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioner, comprising:

the shell is provided with the air inlet and the air outlet;

a heat exchanger component disposed within the housing;

the fan assembly is arranged in the shell and comprises a first fan and an air duct piece, the first fan comprises a first wind wheel and a first motor used for driving the first wind wheel to rotate, the rotation axis of the first wind wheel extends along a first direction, the first wind wheel comprises an inner ring fan blade and an outer ring fan blade which are coaxially arranged, a first air duct is defined in the air duct piece, the first wind wheel is arranged in the first air duct, the first air duct comprises a first sub-air duct and a second sub-air duct which are arranged along the radial direction of the first wind wheel and are mutually separated, the second sub-air duct surrounds the outer peripheral side of the first sub-air duct, the inner ring fan blade is positioned in the first sub-air duct, the outer ring fan blade is positioned in the second sub-air duct, and the first sub-air duct is communicated with the air inlet;

The second sub-air duct comprises two air duct sections which are arranged along a second direction, and a movable air door is arranged between at least one air duct section and the air inlet and used for controlling the communication and the partition between the corresponding air duct section and the air inlet.

2. The air conditioner of claim 1, wherein two of said duct segments together form said second sub-duct in the shape of a ring.

3. An air conditioner according to claim 2 wherein both of said duct segments are semi-circular.

4. The air conditioner according to claim 1, wherein the duct member is formed with an air flow passage located on an upstream side of the first duct, the air flow passage includes a first sub-air flow passage and a second sub-air flow passage arranged in a radial direction of the first wind wheel and spaced apart from each other, the second sub-air flow passage surrounds an outer peripheral side of the first sub-air flow passage, the first sub-air flow passage is opposite to and communicates with the first sub-air passage, the second sub-air flow passage includes two passage sections arranged in the second direction, the two passage sections and the two duct sections respectively correspond, the passage sections are adapted to communicate the corresponding duct sections with the air intake, and the damper is movably provided to the duct member for opening and closing the corresponding duct sections.

5. The air conditioner of claim 4, wherein the duct member includes a duct plate and a duct member body connected to the duct plate and located on a downstream side of the duct plate, the duct member body having the first duct, the duct plate having the airflow passage.

6. The air conditioner of claim 4, wherein the damper is slidable in the second direction to open and close the corresponding passage section.

7. The air conditioner of claim 6, wherein the cabinet is formed with a first sliding groove extending in the second direction, and the damper is provided with a first slider accommodated in the first sliding groove and slidable in the extending direction of the first sliding groove.

8. The air conditioner of claim 4, wherein two of said duct segments together form said second sub-duct in a ring shape, and wherein two of said duct segments together form said air flow duct in a ring shape.

9. The air conditioner of claim 4, wherein the damper conforms to the extended shape of the duct section.

10. The air conditioner according to claim 1, wherein the air door is respectively corresponding to two air duct sections, and the two air doors are respectively and independently controlled.

11. An air conditioner according to any one of claims 1 to 10 wherein the wind speed of the outer ring of blades is different from the wind speed of the inner ring of blades as the first wind wheel rotates.

12. The air conditioner of claim 11, wherein the number of blades of the outer ring fan blades is not less than the number of blades of the inner ring fan blades.

13. The air conditioner of claim 11, wherein the fan assembly further comprises a second fan, the second fan comprises a second wind wheel and a second motor for driving the second wind wheel to rotate, the first motor and the second motor are respectively and independently controlled, the first wind wheel and the second wind wheel are arranged along the flowing direction of the air flow, and the rotating direction of the first wind wheel is opposite to the rotating direction of the second wind wheel;

the second wind wheel is arranged in the second wind channel, the second wind channel is opposite to and communicated with the first sub-wind channel, and the second wind channel is positioned on the upstream side of the first sub-wind channel and communicated with the air inlet.

14. The air conditioner of claim 13, wherein the fan assembly has a plurality of operating modes, the plurality of operating modes including a first operating mode, a second operating mode, and a third operating mode;

In the first working mode, the first wind wheel and the second wind wheel rotate at different rotation speeds; in the second working mode, the first wind wheel and the second wind wheel rotate at the same rotation speed; in the second mode of operation, the second wind wheel is stopped and the first wind wheel is rotated.

15. The air conditioner of claim 13, wherein the air intake includes a first air intake and a second air intake, the first air intake being located on an upstream side of the heat exchanger component and the second air intake being located on a downstream side of the heat exchanger component, the second air duct being in communication with the first air intake, at least one of the air duct sections being provided with a movable damper therebetween for controlling communication and blockage between the corresponding air duct section and the first air intake, the air conditioner further comprising a switch door for communicating or blocking the second air intake with the second sub-air duct.

16. The air conditioner of claim 15, wherein the first direction is a front-to-back direction, the first wind wheel and the second wind wheel are arranged along the front-to-back direction, the air outlet is formed on a front side wall of the casing, the first air inlet is formed on a rear side wall of the casing, the second air inlet is formed on a left side wall and/or a right side wall of the casing, the heat exchanger component is located between the first air inlet and the fan component, a heat exchange air channel is defined between a rear side of the air channel component and the heat exchanger component, the heat exchange air channel is communicated with the first air inlet and the second air channel, an annular communication air channel is defined between an outer peripheral side of the air channel component and the casing, the communication air channel is located at a rear side of the second sub-air channel and surrounds the outer peripheral side of the second air channel, and the communication air inlet is suitable for communicating with the first air inlet and the second sub-air channel.

17. The air conditioner of claim 16, wherein the portion of the cabinet opposite to the communication duct is formed with the second air inlet, the opening and closing door is located in the cabinet and adapted to move in the first direction, and the opening and closing door moves between a first position and a second position;

when the switch door is at the first position, at least part of the switch door is positioned between the second air inlet and the communication air duct, and one end of the switch door in the first direction is abutted with the peripheral wall of the first air duct so as to separate the second sub-air duct from the second air inlet;

when the switch door is at the second position, the switch door is staggered with the second air inlet and is positioned between the shell and the peripheral wall of the first air duct so as to communicate the second sub-air duct with the second air inlet.

18. The air conditioner of claim 17, wherein the cabinet is formed with a second sliding groove extending in the first direction, and the opening and closing door is provided with a second sliding block received in the second sliding groove and slidable in an extending direction of the second sliding groove.

19. The air conditioner of claim 15, wherein the fan assembly has a plurality of operating modes, the plurality of operating modes including a first operating mode, a second operating mode, and a third operating mode;

in the first working mode, the first wind wheel and the second wind wheel rotate at different rotation speeds; in the second working mode, the first wind wheel and the second wind wheel rotate at the same rotation speed; in the second working mode, the second wind wheel stops and the first wind wheel rotates;

the air conditioner is provided with a mode of mixing air without wind sensation and a mode of full heat exchange air outlet;

the second air inlet is opened in the wind mixing and no-wind-sensation mode, and the fan assembly is in the first working mode or the third working mode; and in the full heat exchange air outlet mode, the second air inlet is closed, and the fan assembly is in the second working mode or the third working mode.