Air duct assembly and air conditioner with same

Abstract

The invention provides an air duct assembly and an air conditioner with the same. According to the air duct assembly, a mounting cavity and a plurality of air openings are formed in a volute assembly, and the multiple air openings are formed along the periphery of the mounting cavity at intervals; the volute tongue comprises an air blocking part and an air opening part which are connected with each other. The side, away from the air blocking part, of the air opening part is in lap joint with the volute assembly. A communicating port communicated with the accommodating cavity is defined by the air port part; the volute tongue is rotatably arranged in the mounting cavity so as to move to an air outlet position where the communicating port is opposite to one of the multiple air ports or a blocking position where at least part of the air blocking part is opposite to the multiple air ports; the multiple first limiting parts are arranged at the corresponding air openings correspondingly, and second limiting parts matched with the first limiting parts are arranged on the sides, away from the air blocking part, of the air opening parts. When the volute tongue is located at the air outlet position, the first limiting part abuts against the second limiting part. According to the technical scheme, the technical problem that in the prior art, the air outlet direction of an air duct assembly is single can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air duct components, and in particular to an air duct component and an air conditioner having the same. Background Art

[0002] At present, the air duct components of existing air conditioners have a single air outlet direction, usually only able to achieve the function of up and down air outlet or left and right air outlet. This single air outlet method greatly limits the applicability of air conditioners in different usage scenarios, easily leading to uneven temperature distribution in the room, or easily causing users to feel too cold or cause physical discomfort.

[0003] However, in order to achieve multi-directional air flow, air conditioners in the prior art usually use complex damper structures or a combination of multiple baffles to control the wind direction. These designs not only increase the manufacturing cost and assembly difficulty of the air conditioner, but may also increase the resistance of air flow inside the air duct, reducing the overall energy efficiency of the air conditioner. In addition, the complex damper structure and motor control program make it difficult to maintain and troubleshoot the air conditioner, affecting the market competitiveness and user satisfaction of the product. Summary of the invention

[0004] The main purpose of the present invention is to provide an air duct assembly and an air conditioner having the same, so as to solve the technical problem of the single air outlet direction of the air duct assembly in the prior art.

[0005] In order to achieve the above object, according to one aspect of the present invention, there is provided an air duct assembly, comprising:

[0006] A volute assembly, wherein the volute assembly has a mounting cavity and a plurality of air ports connected to the mounting cavity, wherein the plurality of air ports are arranged at intervals along the periphery of the mounting cavity;

[0007] The volute tongue and the fan blade, the volute tongue comprises a wind shielding portion and a wind outlet portion connected to each other, the wind shielding portion encloses a receiving cavity, the fan blade is movably arranged in the receiving cavity, and the side of the wind outlet portion away from the wind shielding portion overlaps with the volute assembly; the wind outlet portion encloses a connecting port connected to the receiving cavity; the volute tongue is rotatably arranged in the mounting cavity to move to an outlet position where the connecting port is arranged opposite to one of the plurality of wind outlets or to a blocking position where at least part of the wind shielding portion is arranged opposite to the plurality of wind outlets;

[0008] Multiple first limiting parts are arranged in one-to-one correspondence with multiple air outlets, and the multiple first limiting parts are respectively arranged at the corresponding air outlets. A second limiting part matched with the first limiting part is arranged on the side of the air outlet part away from the wind shield part; when the volute tongue is in the air outlet position, the first limiting part abuts against the second limiting part.

[0009] Furthermore, there are multiple air outlet positions, and the multiple air outlet positions are arranged in one-to-one correspondence with the multiple air outlets; the air duct assembly also includes:

[0010] A driving member, a driving end of which is movably arranged and drivingly connected to the volute tongue;

[0011] The position detection member is arranged at the air outlet portion and is arranged toward the second limiting portion. The position detection member is used to detect the distance between the second limiting portion and any one of the first limiting portions.

[0012] Furthermore, the air duct assembly also includes:

[0013] The control member, the position detection member and the driving member are all connected to the control member so that when the volute tongue moves from one of the blocking position or the air outlet position to the other of the air outlet positions, the rotation speed of the driving end is controlled according to the size of the distance between the first limit part and the second limit part corresponding to the other of the air outlet positions detected by the position detection member.

[0014] Furthermore, the air duct assembly also includes:

[0015] A first distance detecting member and a second distance detecting member, the first distance detecting member and the second distance detecting member are respectively located on the first tuyere portion and the second tuyere portion of the tuyere portion, the first distance detecting member and the second distance detecting member are respectively arranged on both sides of the communicating port and are spaced apart along the peripheral direction of the accommodating cavity; the first distance detecting member and the second distance detecting member are respectively used to detect the distance between the first tuyere portion and any one of the tuyere portions and the distance between the second tuyere portion and any one of the tuyere portions;

[0016] A control member, a first distance detection member, a second distance detection member and a driving member are all connected to the control member, and the control member is used to control the rotation direction of the driving end according to the difference between the distance between the first air outlet portion detected by the first distance detection member and the other corresponding air outlet in the air outlet position and the distance between the second air outlet portion detected by the second distance detection member and the other corresponding air outlet in the air outlet position when the volute tongue moves from one of the blocking position or the air outlet position to the other of the air outlet positions.

[0017] Further, the plurality of first limiting portions can be movably arranged to move to an extended position where each first limiting portion protrudes from the outer edge of the volute assembly or to a retracted position where each first limiting portion and the second limiting portion retract; the air duct assembly further includes a control member;

[0018] Among them, multiple first limit parts and position detection parts are all connected to the control part, so that when the volute tongue moves from the blocking position to one of the air outlet positions, the corresponding first limit part is controlled to be in the extended position or the avoidance position according to the distance between the corresponding first limit part and the second limit part in the air outlet position detected by the position detection part.

[0019] Furthermore, the driving member is a driving motor, the driving end is a gear structure, a rack portion is provided on the volute tongue, the rack portion extends along at least part of the periphery of the volute tongue and is used to mesh with the gear structure.

[0020] Further, the wind shield is an arc-shaped structure; and / or,

[0021] The wind shield portion is spaced apart from the volute assembly, the tuyere portion comprises a first tuyere portion and a second tuyere portion which are arranged opposite to each other, a communication port is formed between the first tuyere portion and the second tuyere portion, both the first tuyere portion and the second tuyere portion are arc-shaped structures, the convex portion of the second tuyere portion is arranged toward the concave portion of the first tuyere portion, and the second limiting portion is arranged on the first tuyere portion; and / or,

[0022] The air duct assembly also includes an elastic member, which is arranged on a side of the air outlet portion away from the wind shield portion and is used to contact the volute assembly.

[0023] Further, the volute assembly comprises:

[0024] The mounting portion and the air guide portion are connected to each other, the mounting portion encloses a mounting cavity, the air guide portion encloses an air guide channel, and the air guide channel is connected to the mounting cavity through at least one of the multiple air outlets; along the extension direction of the air guide channel from the side close to the mounting portion to the side of the air guide channel away from the mounting portion, the cross-sectional area of ​​the air guide channel gradually increases.

[0025] According to another aspect of the present invention, an air conditioner is provided, comprising: the air duct assembly provided above.

[0026] Furthermore, the air conditioner also includes:

[0027] A shell, wherein a plurality of air outlets are arranged on the shell, and the plurality of air outlets are arranged in one-to-one correspondence with the plurality of air outlets of the air duct assembly;

[0028] The evaporator is arranged in the shell and located on one side of the volute assembly of the air duct assembly. The accommodating cavity of the volute tongue of the air duct assembly is used to pass to the evaporator and is arranged opposite to the evaporator; the evaporator and the volute tongue are both extended along the height direction of the shell.

[0029] By applying the technical solution of the present invention, the volute tongue in the volute assembly is designed as a rotatable structure, and the connection port can be aligned with one of the multiple air outlets through the rotation of the volute tongue, thereby achieving air outlet in multiple directions. This design breaks the limitation of the single air outlet direction of the traditional air-conditioning duct assembly, and significantly improves the applicability and comfort of the air conditioner in different scenarios. In this way, the wind direction is changed by the rotation of the volute tongue, without the need for an additional damper structure or a combination of multiple baffles, which simplifies the structure of the duct assembly, reduces the manufacturing cost and assembly difficulty. At the same time, the simplified design reduces the resistance to air flow inside the duct, and improves the overall energy efficiency of the air conditioner. And due to the rotation control mechanism of the volute tongue, the duct assembly of this solution can complete the switch from one air outlet direction to another in a short time, improves the response speed of the air conditioner to changes in ambient temperature, and improves the user experience. Fast and accurate wind direction conversion is particularly important for scenes where the air conditioner needs to quickly adjust the indoor temperature. In addition, the wind direction control is achieved by rotating the volute tongue, which reduces the contact and friction between mechanical components, reduces the operating noise, and improves the quiet performance of the air conditioner compared with the traditional multiple dampers or baffle structures. In addition, the simplification of the structure reduces potential failure points and reduces maintenance costs and difficulties. At the same time, a second limiting portion is provided on the side of the air outlet of the volute tongue away from the wind shield, which is adapted to the first limiting portion of the corresponding air outlet on the volute assembly. When the volute tongue is in the air outlet position, the first limiting portion abuts against the second limiting portion. This limiting design can ensure the precise positioning of the volute tongue when it is rotated to each air outlet position, avoid excessive rotation, ensure accurate air outlet direction, and prevent air volume from leaking from non-target air outlets during the conversion process through abutment, thereby improving the accuracy and stability of air volume control. Therefore, the technical solution of the present invention can solve the technical problem of the single air outlet direction of the air duct assembly in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 A schematic diagram of the structural decomposition of an air duct assembly provided according to the first embodiment of the present invention is shown;

[0032] Figure 2 A schematic structural diagram of a volute tongue and a driving member of an air duct assembly provided according to Embodiment 1 of the present invention is shown;

[0033] Figure 3 A cross-sectional view showing a partial structure of an air duct assembly provided according to the first embodiment of the present invention;

[0034] Figure 4 Shows Figure 3A schematic diagram of the structure enlargement at the center A;

[0035] Figure 5 It shows a schematic diagram of the structure of an air conditioner provided according to the second embodiment of the present invention;

[0036] Figure 6 It shows a schematic diagram of the structure decomposition of an air conditioner provided according to the second embodiment of the present invention;

[0037] Figure 7 It shows a schematic structural diagram of the air conditioner provided in the second embodiment of the present invention when the air duct assembly is in the first air outlet position;

[0038] Figure 8 It shows a schematic structural diagram of the air conditioner provided in the second embodiment of the present invention when the air duct assembly is in the second air outlet position;

[0039] Fig. 9 It shows a schematic structural diagram of the air conditioner provided in the second embodiment of the present invention when the air duct assembly is in the third air outlet position;

[0040] Fig.10 A schematic structural diagram of an air conditioner provided according to Embodiment 2 of the present invention is shown when the air duct assembly is in the fourth air outlet position.

[0041] The above drawings include the following reference numerals:

[0042] 1. Volute assembly;

[0043] 11. Installation cavity;

[0044] 12, air outlet; 121, first air outlet; 122, second air outlet; 123, third air outlet; 124, fourth air outlet;

[0045] 13. Installation department;

[0046] 14. Air guide part;

[0047] 15. Volute cover;

[0048] 16. Volute parts;

[0049] 2. Cochlear tongue;

[0050] 21. Windshield;

[0051] 22. Tuyere;

[0052] 221, connecting port;

[0053] 222, second limiting portion;

[0054] 223, first tuyere section;

[0055] 224, second tuyere section;

[0056] 23. Rack part;

[0057] 3. Fan blade; 31. Fan blade driving part;

[0058] 4. The first limiting part;

[0059] 5. Driving parts;

[0060] 51. Driving end;

[0061] 6. Shell;

[0062] 61, air outlet; 611, upper air outlet; 612, lower air outlet; 613, left air outlet; 614, right air outlet;

[0063] 62. Air inlet panel; 63. Left side panel; 64. Right side panel; 65. Front panel; 66. Chassis; 67. Lower air outlet; 68. Upper air outlet; 69. Top cover;

[0064] 7. Evaporator. DETAILED DESCRIPTION

[0065] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0066] like Figures 1 to 4 As shown, the first embodiment of the present invention provides an air duct assembly, which includes a volute assembly 1, a volute tongue 2 and a fan blade 3. The volute assembly 1 has a mounting cavity 11 and a plurality of air ports 12 connected to the mounting cavity 11, and the plurality of air ports 12 are arranged at intervals along the periphery of the mounting cavity 11. The volute tongue 2 includes a wind shield portion 21 and an air outlet portion 22 which are connected to each other. The wind shield portion 21 forms an accommodating cavity. The fan blade 3 can be movably arranged in the accommodating cavity. The air outlet portion 22 is overlapped with the volute assembly 1 on a side away from the wind shield portion 21; the air outlet portion 22 forms a connecting port 221 which is connected to the accommodating cavity; the volute tongue 2 is rotatably arranged in the mounting cavity 11 to move to an air outlet position where the connecting port 221 is relatively arranged with one of the multiple air outlets 12 or to a blocking position where at least part of the wind shield portion 21 is relatively arranged with the multiple air outlets 12; the air duct assembly also includes a plurality of first limiting portions 4, which are arranged one-to-one with the multiple air outlets 12, and the plurality of first limiting portions 4 are respectively arranged at the corresponding air outlets 12, and a second limiting portion 222 which is adapted to the first limiting portion 4 is arranged on a side of the air outlet portion 22 away from the wind shield portion 21; when the volute tongue 2 is in the air outlet position, the first limiting portion 4 abuts against the second limiting portion 222.

[0067] Using the air duct assembly provided by the first embodiment of the present invention, the volute tongue 2 in the volute assembly 1 is designed as a rotatable structure, and the connection port 221 can be aligned with one of the multiple air outlets 12 by rotating the volute tongue 2, thereby achieving air outlet in multiple directions. This design breaks the limitation of the single air outlet direction of the traditional air-conditioning duct assembly, and significantly improves the applicability and comfort of the air conditioner in different scenarios. In this way, the wind direction is changed by rotating the volute tongue 2, without the need for an additional damper structure or a combination of multiple baffles, which simplifies the structure of the air duct assembly, reduces the manufacturing cost and assembly difficulty. At the same time, the simplified design reduces the resistance to air flow inside the duct and improves the overall energy efficiency of the air conditioner. And due to the rotation control mechanism of the volute tongue 2, the air duct assembly of this solution can complete the switch from one air outlet direction to another in a short time, improves the response speed of the air conditioner to changes in ambient temperature, and improves the user experience. Fast and accurate wind direction conversion is particularly important for scenes where the air conditioner needs to quickly adjust the indoor temperature. In addition, the wind direction is controlled by rotating the volute tongue 2, which reduces the contact and friction between mechanical parts, reduces the operating noise, and improves the quiet performance of the air conditioner compared to the traditional multiple dampers or baffle structures. In addition, the simplification of the structure reduces potential failure points, reduces maintenance costs and difficulties. At the same time, a second limiting portion 222 is provided on the side of the air outlet portion 22 of the volute tongue 2 away from the wind shield portion 21, which is adapted to the first limiting portion 4 of the corresponding air outlet 12 on the volute assembly 1. When the volute tongue 2 is in the air outlet position, the first limiting portion 4 abuts against the second limiting portion 222. This limiting design can ensure the precise positioning of the volute tongue 2 when it is rotated to each air outlet position, avoid excessive rotation, ensure the accurate air outlet direction, and prevent the air volume from leaking from the non-target air outlet 61 during the conversion process through abutment, thereby improving the accuracy and stability of air volume control. Therefore, the air duct assembly provided in this embodiment can solve the technical problem of the single air outlet direction of the air duct assembly in the prior art.

[0068] Specifically, the plurality of air vents 12 include a first air vent 121, a second air vent 122, a third air vent 123 and a fourth air vent 124 which are evenly spaced along the periphery of the installation cavity 11, the first air vent 121 and the third air vent 123 are arranged opposite to each other, and the second air vent 122 and the fourth air vent 124 are arranged opposite to each other; the air outlet position includes a first air outlet position in which the connecting port 221 is arranged opposite to the first air vent 121, a second air outlet position in which the connecting port 221 is arranged opposite to the second air vent 122, a third air outlet position in which the connecting port 221 is arranged opposite to the third air vent 123, and a fourth air outlet position in which the connecting port 221 is arranged opposite to the fourth air vent 124. Specifically, the first air vent 121 is arranged toward the top of the air duct assembly, the second air vent 122 is arranged toward the left side of the air duct assembly, the third air vent 123 is arranged toward the bottom of the air duct assembly, and the fourth air vent 124 is arranged toward the right side of the air duct assembly.

[0069] Specifically, the fan blades 3 are centrifugal fan blades.

[0070] Specifically, one of the first limiting portion 4 and the second limiting portion 222 is a limiting protrusion, and the other is a limiting groove. When the volute tongue 2 is in the air outlet position, the first limiting portion 4 is engaged with the second limiting portion 222. With such a structural arrangement, through the cooperation of the limiting protrusion and the limiting groove, the volute tongue 2 can achieve stable docking when it is rotated to the preset air outlet position, ensuring the precise alignment of the connecting port 221 with the designated air outlet 12, thereby improving the accuracy of wind direction control. The positioning of the volute tongue 2 is achieved by using a simple mechanical structure of a limiting protrusion and a groove. Compared with a complex damper or baffle control mechanism, the structure of the air duct assembly is simplified, and the manufacturing cost and possible failure rate are reduced.

[0071] Specifically, there are multiple air outlet positions, and the multiple air outlet positions are arranged in one-to-one correspondence with the multiple air outlets 12; the air duct assembly also includes a driving member 5 and a position detection member. The driving end 51 of the driving member 5 is movably arranged and is connected to the volute tongue 2 by driving. The position detection member is arranged at the air outlet portion 22 and is arranged toward the second limit portion 222. The position detection member is used to detect the distance between the second limit portion 222 and any one of the first limit portions 4. The driving end 51 of the driving member 5 is arranged in the installation cavity 11. With such a structural arrangement, the driving connection between the driving member 5 and the volute tongue 2, combined with the use of the position detection member, can realize the fast and accurate switching of the volute tongue 2 between multiple air outlet positions, thereby improving the adaptability of the air conditioner to different usage scenarios and the convenience of user operation. Through the connection between the position detection member and the control member, the air duct assembly has the ability of intelligent control and can automatically adjust the wind direction according to actual needs. At the same time, this mechanism also helps fault diagnosis and maintenance, reducing maintenance costs and difficulties.

[0072] Specifically, the air duct assembly also includes a control member, and the position detection member and the driving member 5 are both connected to the control member, so that when the volute 2 moves from one of the blocking position or the air outlet position to the other of the air outlet positions, the rotation speed of the driving end 51 is controlled according to the size of the distance between the first limiting portion 4 and the second limiting portion 222 corresponding to the other air outlet position detected by the position detection member. With such a setting, the control member can dynamically adjust the rotation speed of the driving end 51 according to the real-time feedback of the position detection member, ensure the smooth transition of the volute 2 when switching to the next air outlet position, avoid the sudden change of air volume that may occur during rapid switching, and improve the stability and comfort of the air conditioner operation. By adjusting the rotation speed of the volute 2 by controlling the rotation speed of the driving end 51, the energy consumption in the process of wind direction conversion can be reduced, especially when the volute 2 is close to the target air outlet position, the rotation speed is reduced, unnecessary energy waste is avoided, and the overall energy efficiency of the air conditioning system is improved.

[0073] Specifically, when the spacing between the other corresponding first limiting part 4 and the second limiting part 222 in the air outlet position is less than the preset spacing, the speed of the driving end 51 is controlled to decrease; when the spacing between the other corresponding first limiting part 4 and the second limiting part 222 in the air outlet position is 0, the speed of the driving end 51 is controlled to be 0; when the spacing between the other corresponding first limiting part 4 and the second limiting part 222 in the air outlet position is greater than or equal to the preset spacing, the speed of the driving end 51 is controlled to remain unchanged. In this way, by adjusting the speed of the driving end 51, it is ensured that the volute tongue 2 decelerates when approaching the target air outlet position, avoiding excessive positioning caused by high-speed rotation. When the volute tongue 2 is completely aligned with the target first limiting part 4, the speed drops to zero to prevent excessive rotation of the volute tongue 2, thereby ensuring the precise positioning of the volute tongue 2 at different air outlet positions. By dynamically adjusting the speed, the impact that the volute tongue 2 may receive during rapid positioning is reduced, and the wear of the driving member 5 is reduced, thereby extending the service life of the air duct assembly and reducing maintenance costs.

[0074] Specifically, the driving member 5 is a motor gear. When the air duct assembly needs to switch from the current air outlet position to another air outlet position, the power of the driving member 5 is controlled to increase so that the second limit portion 222 passes over the first limit portion 4 corresponding to the current air outlet position and avoids each other. In this way, when it is necessary to switch from one air outlet position to another air outlet position, by increasing the power of the driving member 5, the second limit portion 222 of the volute tongue 2 can easily pass over the first limit portion 4 corresponding to the current air outlet position, thereby achieving a rapid and smooth conversion of the wind direction.

[0075] Specifically, the air duct assembly further includes a first distance detection member and a second distance detection member, which are respectively located on the first air outlet portion 223 and the second air outlet portion 224 of the air outlet portion 22, and are respectively arranged on both sides of the connecting port 221 and spaced apart along the peripheral direction of the accommodating cavity; the first distance detection member and the second distance detection member are respectively used to detect the distance between the first air outlet portion 223 and any one of the air outlets 12 and the distance between the second air outlet portion 224 and any one of the air outlets 12. The first distance detection member, the second distance detection member and the driving member 5 are all connected to the control member, and the control member is used to control the rotation direction of the driving end 51 according to the difference between the distance between the first air outlet portion 223 and the other corresponding air outlet 12 in the air outlet position detected by the first distance detection member and the distance between the second air outlet portion 224 and the other corresponding air outlet 12 in the air outlet position detected by the second distance detection member when the volute 2 moves from one of the blocking position or the air outlet position to the other of the air outlet positions. With such a setting, the first distance detection member and the second distance detection member respectively detect the distance between the first air outlet portion 223 and the second air outlet portion 224 of the volute tongue 2 and the air outlet 12, thereby realizing the bilateral real-time monitoring of the position of the volute tongue 2, and improving the accuracy and reliability of wind direction control. The control member intelligently adjusts the rotation direction of the driving end 51 according to the distance difference provided by the first distance detection member and the second distance detection member, thereby facilitating the rotation of the volute tongue 2 from the shortest path to the target air outlet position, and improving the speed of wind direction switching.

[0076] It should be noted that “the distance between the first air outlet portion 223 and another corresponding air outlet 12 in the air outlet position” refers to the distance between the side of the first air outlet portion 223 away from the wind shield portion 21 and the center line of another corresponding air outlet 12 in the air outlet position along the peripheral direction of the volute assembly 1. “The distance between the second air outlet portion 224 and another corresponding air outlet 12 in the air outlet position” refers to the distance between the side of the second air outlet portion 224 away from the wind shield portion 21 and the center line of another corresponding air outlet 12 in the air outlet position along the peripheral direction of the volute assembly 1.

[0077] Specifically, when the distance between the first air outlet portion 223 detected by the first distance detection member and another corresponding air outlet 12 in the air outlet position is greater than the distance between the second air outlet portion 224 detected by the second distance detection member and another corresponding air outlet 12 in the air outlet position (the difference is a positive number), the rotation direction of the control driving end 51 is the extension direction from the second air outlet portion 224 to another corresponding air outlet 12 in the air outlet position; when the distance between the first air outlet portion 223 detected by the first distance detection member and another corresponding air outlet 12 in the air outlet position is less than the distance between the second air outlet portion 224 detected by the second distance detection member and another corresponding air outlet 12 in the air outlet position When the distance between the first air outlet portion 223 and the other corresponding air outlet 12 in the air outlet position detected by the first distance detection member is equal to the distance between the second air outlet portion 224 and the other corresponding air outlet 12 in the air outlet position detected by the second distance detection member (the difference is 0), the rotation direction of the control driving end 51 remains unchanged, that is, it rotates in the direction of the previous rotation. In this way, under different conditions of the first air outlet portion 223 and the second air outlet portion 224 being away from the target air outlet 12, a shorter or better rotation path can be automatically selected, thereby avoiding unnecessary rotation angles and time, and improving the efficiency of the volute tongue 2 switching from one air outlet position to another air outlet position. Selecting the optimal rotation direction not only shortens the switching time, but also reduces the number of contacts between the volute tongue 2 and the first limiting portion 4 during the rotation process, thereby reducing the mechanical stress inside the air duct and extending the service life of the air duct component.

[0078] Specifically, multiple first limiting parts 4 can be movably arranged to move to the extended position where each first limiting part 4 protrudes from the outer edge of the volute assembly 1 or to the avoidance position where each first limiting part 4 avoids the second limiting part 222; the air duct assembly also includes a control member. Among them, multiple first limiting parts 4 and position detection members are connected to the control member, so that when the volute tongue 2 moves from the blocking position to one of the air outlet positions, the corresponding first limiting part 4 is controlled to be in the extended position or the avoidance position according to the distance between the first limiting part 4 and the second limiting part 222 corresponding to one of the air outlet positions detected by the position detection member. With such a structural arrangement, by making the first limiting part 4 movably arranged, it can be extended to the outer edge of the volute assembly 1 when necessary to form a more stable limiting effect, and when the limiting is not required, it can be moved to the avoidance position to ensure the free rotation of the volute tongue 2. This flexible limiting mechanism improves the operational flexibility of the air duct assembly. The connection between the position detection component and the control component enables the control component to accurately control the extension or avoidance of the first limit part 4 according to the real-time spacing information between the volute tongue 2 and the first limit part 4, thereby avoiding accidental contact between the first limit part 4 and the volute tongue 2 at a non-target position, improving the accuracy and reliability of wind direction switching, reducing friction and collision during the rotation of the volute tongue 2, and reducing the possibility of abnormal noise during operation. At the same time, it also reduces faults caused by improper contact between the first limit part 4 and the volute tongue 2, thereby improving the operating stability and durability of the air duct assembly.

[0079] It should be noted that the portion of the first limiting portion 4 protruding from the outer edge of the volute assembly 1 is used to abut against the second limiting portion 222 .

[0080] Specifically, when the distance between a corresponding first limit part 4 and the second limit part 222 in the air outlet position detected by the position detection part is less than the preset distance, the corresponding first limit part 4 is controlled to be in the extended position; when the distance between a corresponding first limit part 4 and the second limit part 222 in the air outlet position detected by the position detection part is greater than or equal to the preset distance, the corresponding first limit part 4 is controlled to be in the avoidance position. With such a structural setting, by dynamically adjusting the position of the first limit part 4, the position change of the volute tongue 2 can be quickly responded to, ensuring the efficient response of the volute tongue 2 when changing the wind direction, shortening the time of wind direction switching, and improving the convenience of user operation and the flexibility of air conditioning operation.

[0081] Specifically, when the volute tongue 2 moves from the blocking position to one of the air outlet positions, the first limit portion 4 corresponding to one of the air outlet positions is controlled to be in the extended position, and the other first limit portions 4 are in the avoidance position. In this way, when the volute tongue 2 moves from the blocking position to the designated air outlet position, the control component can ensure that the target first limit portion 4 is in the extended position, while making the other first limit portions 4 in the avoidance position, thereby avoiding the accidental contact between the volute tongue 2 and the non-target first limit portion 4 during the conversion process, and ensuring the accuracy and safety of the wind direction switching.

[0082] Specifically, the driving member 5 is a driving motor, the driving end 51 is a gear structure, and a rack portion 23 is provided on the volute tongue 2. The rack portion 23 is extended along at least part of the periphery of the volute tongue 2 and is used to mesh with the gear structure. In this way, by adopting the mode of meshing the motor gear with the rack portion 23 on the volute tongue 2, the volute tongue 2 can be rotated accurately and stably, the accuracy and stability of the movement of the volute tongue 2 are improved, and the accuracy and smoothness of the wind direction conversion are ensured. The precise matching of the gear and the rack reduces the mechanical wear during the rotation of the volute tongue 2, prolongs the service life of key components in the air duct assembly, reduces the maintenance cost of the long-term operation of the air conditioner, and improves the reliability and economy of the system.

[0083] Specifically, the windshield 21 is an arc-shaped structure. The windshield 21 is an arc-shaped structure that matches the installation cavity 11. With such a structural setting, the windshield 21 is designed as an arc-shaped structure, and its shape matches the installation cavity 11, which can effectively reduce wind resistance, make air flow smoother, improve the air handling efficiency of the air duct assembly, reduce the energy consumption required to drive the fan blades 3, and thus save energy.

[0084] Specifically, the wind shielding portion 21 is spaced apart from the volute assembly 1, and the air port portion 22 includes a first air port portion 223 and a second air port portion 224 that are arranged opposite to each other, a connecting port 221 is formed between the first air port portion 223 and the second air port portion 224, and both the first air port portion 223 and the second air port portion 224 are arc-shaped structures, the convex portion of the second air port portion 224 is arranged toward the concave portion of the first air port portion 223, and the second limiting portion 222 is arranged on the first air port portion 223. With such a structural arrangement, the first air port portion 223 and the second air port portion 224 are both designed as arc-shaped structures, which can smoothly guide the direction of the airflow, so that the airflow is more stable when the airflow passes through the connecting port 221, avoiding sudden changes in the airflow when switching directions and possible noise, and enhancing the smoothness and quietness of the air conditioner operation. The second limiting portion 222 is arranged on the first air outlet portion 223. This design ensures the precise fit between the first limiting portion 4 and the first air outlet portion 223, improves the positioning accuracy and stability when the wind direction is switched, and avoids air leakage and degradation of air conditioning performance due to improper position of the limiting portion.

[0085] Specifically, the air duct assembly also includes an elastic member, which is arranged on the side of the air outlet portion 22 away from the wind shield portion 21 and is used to contact the volute assembly 1. With such a structural arrangement, the arrangement of the elastic member can provide additional sealing force, ensuring that when the volute tongue 2 rotates to different air outlet positions, the non-target air outlet 12 can be more tightly closed, reducing air volume leakage and improving the accuracy of wind direction control. The use of the elastic member can also buffer the impact force when the volute tongue 2 contacts the volute assembly 1, reduce the hard contact between the components, reduce mechanical wear, extend the service life of the air duct assembly, and reduce the maintenance cost of long-term operation.

[0086] In this embodiment, the volute assembly 1 includes a mounting portion 13 and an air guide portion 14 that are interconnected. The mounting portion 13 encloses a mounting cavity 11, and the air guide portion 14 encloses an air guide channel. The air guide channel is connected to the mounting cavity 11 through at least one of the multiple air ports 12. The cross-sectional area of ​​the air guide channel gradually increases along the extension direction of the air guide channel from the side close to the mounting portion 13 to the side of the air guide channel away from the mounting portion 13. In this way, it is helpful to form a more ideal airflow distribution, enhance the guiding property of the airflow, make the air volume more uniform when passing through the air guide channel, and improve the comfort and efficiency of the air supply of the air conditioner. The gradually increasing cross-sectional area design of the air guide channel reduces the resistance of the airflow in the channel, reduces the power required to drive the fan blades 3, reduces energy consumption, and improves the overall energy efficiency of the air conditioning system.

[0087] Specifically, there are at least two air guides 14, and the at least two air guides 14 are respectively located on both sides of the mounting portion 13. With such a structural arrangement, the overall structural stability of the air duct assembly is improved, the stability and safety of the air duct assembly when the high-speed fan blades 3 are running are ensured, the vibration and noise of the air duct assembly are reduced, and the overall operation quality of the air conditioning system is improved.

[0088] Specifically, the air duct assembly further includes a blade driver 31, which is disposed on one side of the volute assembly 1, and a blade driving end of the blade driver 31 extends into the accommodating cavity and is drivingly connected to the blade 3. The blade driver 31 is a brushless motor.

[0089] like Figures 5 to 10 As shown, the second embodiment of the present invention provides an air conditioner, and the air conditioner includes the air duct assembly provided in the first embodiment.

[0090] In the air conditioner provided by the second embodiment of the present invention, the volute tongue 2 in the volute assembly 1 is designed as a rotatable structure, and the connection port 221 can be aligned with one of the multiple air outlets 12 by rotating the volute tongue 2, thereby achieving air outlet in multiple directions. This design breaks the limitation of the single air outlet direction of the traditional air conditioner duct assembly, and significantly improves the applicability and comfort of the air conditioner in different scenarios. In this way, the wind direction is changed by rotating the volute tongue 2, without the need for an additional damper structure or a combination of multiple baffles, which simplifies the structure of the duct assembly, reduces the manufacturing cost and assembly difficulty. At the same time, the simplified design reduces the resistance to air flow inside the duct and improves the overall energy efficiency of the air conditioner. And due to the rotation control mechanism of the volute tongue 2, the duct assembly of this solution can complete the switch from one air outlet direction to another in a short time, improves the response speed of the air conditioner to changes in ambient temperature, and improves the user experience. Fast and accurate wind direction conversion is particularly important for scenes where the air conditioner needs to quickly adjust the indoor temperature. In addition, the wind direction is controlled by rotating the volute tongue 2, which reduces the contact and friction between mechanical parts, reduces the operating noise, and improves the quiet performance of the air conditioner compared to the traditional multiple dampers or baffle structures. In addition, the simplification of the structure reduces potential failure points, reduces maintenance costs and difficulties. At the same time, a second limiting portion 222 is provided on the side of the air outlet portion 22 of the volute tongue 2 away from the wind shield portion 21, which is adapted to the first limiting portion 4 of the corresponding air outlet 12 on the volute assembly 1. When the volute tongue 2 is in the air outlet position, the first limiting portion 4 abuts against the second limiting portion 222. This limiting design can ensure the precise positioning of the volute tongue 2 when it is rotated to each air outlet position, avoid excessive rotation, ensure the accurate air outlet direction, and prevent the air volume from leaking from the non-target air outlet 61 during the conversion process through abutment, thereby improving the accuracy and stability of air volume control. Therefore, the air conditioner provided by this embodiment can solve the technical problem of the single air outlet direction of the air duct assembly in the prior art.

[0091] Specifically, the air conditioner further comprises a housing 6 and an evaporator 7. The housing 6 is provided with a plurality of air outlets 61, and the plurality of air outlets 61 are arranged one by one with the plurality of air outlets 12 of the air duct assembly. The evaporator 7 is arranged in the housing 6 and is located on one side of the volute assembly 1 of the air duct assembly. The accommodating cavity of the volute tongue 2 of the air duct assembly is used to pass to the evaporator 7 and is arranged opposite to the evaporator 7; the evaporator 7 and the volute tongue 2 are both extended along the height direction of the housing 6. With such a structural arrangement, the volute tongue 2 of the air duct assembly is arranged opposite to the evaporator 7, and both extend along the height direction of the housing 6. This layout can ensure efficient circulation of airflow between the air duct and the evaporator 7. The accommodating cavity of the volute tongue 2 is directly connected to the evaporator 7, which reduces the loss of airflow during transmission and improves the cooling or heating efficiency of the air conditioning system. This design also helps to optimize the internal space of the air conditioner, provides more layout possibilities for other key components such as fans and motors, and enhances the overall design flexibility and performance of the air conditioner.

[0092] Specifically, the plurality of air outlets 61 include an upper air outlet 611 corresponding to the first air outlet 121 , a lower air outlet 612 corresponding to the third air outlet 123 , a left air outlet 613 corresponding to the second air outlet 122 , and a right air outlet 614 corresponding to the fourth air outlet 124 .

[0093] Specifically, the air conditioner further includes an air inlet panel 62, which has the function of supporting the entire air conditioner. The evaporator 7 is located on one side of the air inlet grille of the air inlet panel 62 and is fixed on the air inlet panel 62. The volute assembly 1 includes a volute cover 15, which is located on one side of the evaporator 7 and is fixed on the air inlet panel 62. The volute cover 15 cooperates with the volute member 16 to form an air duct. The air conditioner further includes a left side plate 63, which is located on the left side of the air conditioner and is fixed on the air inlet panel 62, and has a left air outlet 613 thereon. The air conditioner further includes a chassis 66, which is located at the bottom of the air conditioner, serves as the bottom support of the air conditioner, and also has a decorative function. The air conditioner further includes a lower air outlet 67, which is located below the air duct and is fixed on the air inlet panel 62. The lower air outlet 67 is used to form a lower air outlet 612. The air conditioner further includes a front panel 65, which is located at the front of the air conditioner and is installed on the air inlet panel 62. The air conditioner also includes a right side panel 64, which is located on the right side of the air conditioner and is provided with a right air outlet 614 for decoration and air outlet. The air conditioner also includes an upper air outlet 68, which has an upper air outlet channel and is installed on the air inlet panel 62. The upper air outlet 68 is provided with an air guide plate for guiding air. The air conditioner also includes a top cover 69, which is located at the top of the air conditioner and is installed on the air inlet panel 62 and the front panel 65, and is provided with an upper air outlet 611.

[0094] Figure 7The schematic diagram of the structure of the air conditioner when the air duct assembly is in the first air outlet position is shown. When the air conditioner needs to be discharged upward, just press the "upward air outlet" button. Since the volute tongue 2 is blocked by the flange (equivalent to the first limit part 4), the motor gear needs to increase the power to overcome the pre-tightening force of the flange when starting. When the second limit part 222 of the volute tongue 2 moves close to the first air outlet 121, the power of the motor gear decreases, the speed slows down, and the second limit part 222 of the volute tongue 2 is blocked by the flange. The position sensor (equivalent to the position detection element) senses that the second limit part 222 is in contact with the first limit part 4, and the motor gear stops. Stop rotating, at this time, the volute tongue 2 is accurately positioned at the first air outlet 121, the volute tongue opening (equivalent to the connecting port 221) is aligned with the first air outlet 121, and the left, right and lower air outlets of the air duct are closed. At this time, the air duct forms a unidirectional upward ventilation channel, and the fan motor (equivalent to the fan drive component 31) is started, and the air conditioner can only blow air upward. During this process, there is no need for a baffle structure to change the wind direction. The wind direction can be changed by rotating the volute tongue 2. It is done in one step with a fast reversing speed. The air conditioner blows air upward, and it is a shower-like blowing. The user experience is good and the comfort is high.

[0095] Figure 8 The schematic diagram of the structure of the air conditioner when the air duct assembly is in the second air outlet position is shown. When the air conditioner needs to outlet air to the left, just press the "left air outlet" button. Since the volute tongue 2 is blocked by the flange (equivalent to the first limit part 4), the motor gear needs to increase the power to overcome the pre-tightening force of the flange when starting. When the second limit part 222 of the volute tongue 2 moves close to the second air outlet 122, the power of the motor gear decreases, the speed slows down, and the second limit part 222 of the volute tongue 2 is blocked by the flange. The position sensor (equivalent to the position detection part) senses that the second limit part 222 is in contact with the first limit part 4, and the motor gear stops rotating. The volute tongue 2 moves, at this time, the volute tongue 2 is accurately positioned at the second air outlet 122, the volute tongue opening (equivalent to the connecting port 221) is aligned with the second air outlet 122, and the lower, right and upper air outlets of the air duct are closed. At this time, the air duct forms a one-way ventilation channel to the left, and the fan motor (equivalent to the fan drive member 31) is started, and the air conditioner can only blow air to the left. During this process, there is no need for a baffle structure to change the wind direction. The wind direction can be changed by rotating the volute tongue 2, which is done in one step and has a fast reversing speed. The left air outlet 613 is located on the left side of the air conditioner, and the air conditioning wind does not blow directly on people, and the comfort is high.

[0096] Fig. 9The schematic diagram of the structure of the air conditioner when the air duct assembly is in the third air outlet position is shown. When the air conditioner needs to discharge air downward, just press the "downward air outlet" button. Since the volute tongue 2 is blocked by the flange (equivalent to the first limit part 4), the motor gear needs to increase the power to overcome the pre-tightening force of the flange when starting. When the second limit part 222 of the volute tongue 2 moves close to the third air outlet 123, the power of the motor gear decreases, the speed slows down, and the second limit part 222 of the volute tongue 2 is blocked by the flange. The position sensor (equivalent to the position detection element) senses that the second limit part 222 is in contact with the first limit part 4, and the motor gear is turned off. The wheel stops rotating, and the volute tongue 2 is precisely positioned at the third air outlet 123. The volute tongue opening (equivalent to the connecting port 221) is aligned with the third air outlet 123, and the left, right and upper air outlets of the air duct are closed. At this time, the air duct forms a one-way downward ventilation channel, and the fan motor (equivalent to the fan drive member 31) is started. The air conditioner can only blow air downward. During this process, there is no need for a baffle structure to change the wind direction. The wind direction can be changed by rotating the volute tongue 2. It is done in one step with a fast reversing speed. The downward air outlet generally blows warm air, and the warm air starts from the feet, which is very comfortable.

[0097] Fig.10 The schematic diagram of the structure of the air conditioner when the air duct assembly is in the fourth air outlet position is shown. When the air conditioner needs to outlet air to the right, just press the "right air outlet" button. Since the volute tongue 2 is blocked by the flange (equivalent to the first limit part 4), the motor gear needs to increase the power to overcome the pre-tightening force of the flange when starting. When the second limit part 222 of the volute tongue 2 moves close to the fourth air outlet 124, the power of the motor gear decreases, the speed slows down, and the second limit part 222 of the volute tongue 2 is blocked by the flange. The position sensor (equivalent to the position detection part) senses that the second limit part 222 abuts against the first limit part 4, and the motor gear stops rotating. The volute tongue 2 moves, at this time, the volute tongue 2 is accurately positioned at the fourth air outlet 124, the volute tongue opening (equivalent to the connecting port 221) is aligned with the fourth air outlet 124, and the lower, left and upper air outlets of the air duct are closed. At this time, the air duct forms a one-way ventilation channel to the right, and the fan motor (equivalent to the fan drive member 31) is started, and the air conditioner can only blow air to the right. During this process, there is no need for a baffle structure to change the wind direction. The wind direction can be changed by rotating the volute tongue 2, which is done in one step and has a fast reversing speed. The right air outlet 614 is located on the right side of the air conditioner, and the air conditioning wind does not blow directly on people, and the comfort is high.

[0098] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the air duct has multiple air outlets and multiple air outlet directions, breaking the traditional air outlet mode of only up and down or left and right air outlet of air conditioners. The air duct structure is simple, and there is no need to add additional structures and multiple baffle dampers. Only the circular air cavity and the volute tongue are required to cooperate, and the control method is simple; the volute tongue not only has the function of guiding the wind direction, but also has the functions of wind blocking, sealing and reversing. Because the circumferential part of the volute tongue is provided with a rack structure, which meshes with the motor gear, the volute tongue can rotate, and the air outlet can be reversed 360 degrees in the air duct cavity, thereby realizing air outlet in four different directions of the air conditioner: up, down, left and right; the air outlet part of the volute tongue will be sealed with the inside of the circular cavity of the air duct, so that the volute tongue has a baffle to prevent air leakage and ensure the stability of the air outlet direction; the air conditioner has a fast reversing speed and a simple air conditioner reversing program design, and the conversion of different air outlet directions can be achieved by controlling the forward and reverse rotation of the motor; the air conditioner has high air outlet stability, and there is a flange at each air outlet. When the volute tongue moves to the air outlet, it will be blocked and cannot continue to rotate. With the help of the position sensor, precise positioning is achieved; when the volute tongue needs to rotate, due to the existence of the small flange, a pre-tightening force is provided to the volute tongue, and the motor needs to increase its power to cross the small flange, thereby improving the accuracy of the volute tongue's docking position.

[0099] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0100] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0101] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0102] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0103] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air duct assembly, characterized in that: include: A volute assembly (1), wherein the volute assembly (1) has a mounting cavity (11) and a plurality of air ports (12) connected to the mounting cavity (11), wherein the plurality of air ports (12) are arranged at intervals along the periphery of the mounting cavity (11); A volute tongue (2) and a fan blade (3), wherein the volute tongue (2) comprises a wind shielding portion (21) and an air outlet portion (22) connected to each other, the wind shielding portion (21) enclosing a receiving cavity, the fan blade (3) being movably arranged in the receiving cavity, the air outlet portion (22) being overlapped with the volute assembly (1) on a side away from the wind shielding portion (21); the air outlet portion (22) enclosing a connecting port (221) communicating with the receiving cavity; the volute tongue (2) being rotatably arranged in the mounting cavity (11) so as to move to an air outlet position where the connecting port (221) is arranged relative to one of the plurality of air outlets (12) or to a blocking position where at least a portion of the wind shielding portion (21) is arranged relative to the plurality of air outlets (12); A plurality of first limiting portions (4) are arranged in one-to-one correspondence with the plurality of air outlets (12); the plurality of first limiting portions (4) are respectively arranged at the corresponding air outlets (12); a second limiting portion (222) adapted to the first limiting portion (4) is arranged on a side of the air outlet portion (22) away from the wind shield portion (21); when the volute tongue (2) is in the air outlet position, the first limiting portion (4) abuts against the second limiting portion (222).

2. The air duct assembly according to claim 1, characterized in that: There are multiple air outlet positions, and the multiple air outlet positions are arranged in a one-to-one correspondence with the multiple air outlets (12); the air duct component also includes: A driving member (5), wherein a driving end (51) of the driving member (5) is movably arranged and drivingly connected to the volute tongue (2); A position detection member is arranged at the air outlet portion (22) and is arranged toward the second position limiting portion (222), and the position detection member is used to detect the distance between the second position limiting portion (222) and any one of the first position limiting portions (4).

3. The air duct assembly according to claim 2, characterized in that: The air duct assembly also includes: A control member, the position detection member and the drive member (5) are both connected to the control member so as to control the rotation speed of the drive end (51) according to the size of the distance between the first limit portion (4) and the second limit portion (222) corresponding to the other of the air outlet positions detected by the position detection member when the volute tongue (2) moves from one of the blocking position or the air outlet position to the other of the air outlet positions.

4. The air duct assembly according to claim 2, characterized in that: The air duct assembly also includes: a first distance detecting member and a second distance detecting member, the first distance detecting member and the second distance detecting member are respectively located on a first air outlet portion (223) and a second air outlet portion (224) of the air outlet portion (22), the first distance detecting member and the second distance detecting member are respectively arranged on both sides of the communicating port (221) and are spaced apart along the peripheral direction of the accommodating cavity; the first distance detecting member and the second distance detecting member are respectively used to detect the distance between the first air outlet portion (223) and any one of the air outlets (12), and the distance between the second air outlet portion (224) and any one of the air outlets (12); A control member, wherein the first distance detection member, the second distance detection member and the driving member (5) are all connected to the control member, and the control member is used to control the rotation direction of the driving end (51) when the volute tongue (2) moves from one of the blocking position or the air outlet position to the other of the air outlet positions, according to the difference between the distance between the first air outlet portion (223) detected by the first distance detection member and the air outlet (12) corresponding to the other of the air outlet positions and the distance between the second air outlet portion (224) detected by the second distance detection member and the air outlet (12) corresponding to the other of the air outlet positions.

5. The air duct assembly according to claim 2, characterized in that: The plurality of first limiting portions (4) are movably arranged to move to an extended position where each of the first limiting portions (4) protrudes from the outer edge of the volute assembly (1) or to a retracted position where each of the first limiting portions (4) and the second limiting portion (222) retract from each other; the air duct assembly further comprises a control member; Wherein, a plurality of the first limiting portions (4) and the position detection components are all connected to the control component, so that when the volute tongue (2) moves from the blocking position to one of the air outlet positions, the corresponding first limiting portion (4) is controlled to be in the extended position or the avoidance position according to the distance between the first limiting portion (4) and the second limiting portion (222) corresponding to one of the air outlet positions detected by the position detection component.

6. The air duct assembly according to claim 2, characterized in that: The driving member (5) is a driving motor, the driving end (51) is a gear structure, and the volute tongue (2) is provided with a rack portion (23), the rack portion (23) extending along at least part of the periphery of the volute tongue (2) and being used to mesh with the gear structure.

7. The air duct assembly according to any one of claims 1 to 6, characterized in that: The wind shield (21) is an arc-shaped structure; and / or, The wind shield portion (21) is spaced apart from the volute assembly (1); the air port portion (22) comprises a first air port portion (223) and a second air port portion (224) which are arranged opposite to each other; the connecting port (221) is formed between the first air port portion (223) and the second air port portion (224); both the first air port portion (223) and the second air port portion (224) are arc-shaped structures; the convex portion of the second air port portion (224) is arranged toward the concave portion of the first air port portion (223); and the second limiting portion (222) is arranged on the first air port portion (223); and / or, The air duct assembly further comprises an elastic member, which is arranged on a side of the air outlet portion (22) away from the wind shield portion (21) and is used to contact the volute assembly (1).

8. The air duct assembly according to any one of claims 1 to 6, characterized in that: The volute assembly (1) comprises: A mounting portion (13) and an air guide portion (14) are connected to each other, the mounting portion (13) enclosing the mounting cavity (11), the air guide portion (14) enclosing an air guide channel, the air guide channel being connected to the mounting cavity (11) via at least one of the plurality of air ports (12); along the extension direction of the air guide channel from a side close to the mounting portion (13) to a side of the air guide channel away from the mounting portion (13), the cross-sectional area of ​​the air guide channel gradually increases.

9. An air conditioner, characterized in that: include: The air duct assembly according to any one of claims 1 to 8.

10. The air conditioner according to claim 9, characterized in that: The air conditioner also includes: A housing (6), wherein a plurality of air outlets (61) are provided on the housing (6), and the plurality of air outlets (61) are arranged in a one-to-one correspondence with the plurality of air outlets (12) of the air duct assembly; The evaporator (7) is arranged in the outer shell (6) and is located on one side of the volute assembly (1) of the air duct assembly; the accommodating cavity of the volute tongue (2) of the air duct assembly is used to pass through the evaporator (7) and is arranged opposite to the evaporator (7); the evaporator (7) and the volute tongue (2) are both extended along the height direction of the outer shell (6).

Images