Air conditioner

Abstract

The present invention discloses an air conditioner, which includes: a housing, a heat exchanger, an air duct component, a wind wheel assembly and a motor assembly. An air inlet and an air outlet are provided on the housing. A heat exchange air duct communicating with the air inlet is provided inside the housing. A first wind wheel placement cavity and a second wind wheel placement cavity are provided inside the air duct component. The first wind wheel placement cavity communicates with the heat exchange air duct, and the second wind wheel placement cavity is arranged separately from the heat exchange air duct and communicates with the air inlet. A first wind wheel is arranged in the first wind wheel placement cavity, and a second wind wheel is arranged in the second wind wheel placement cavity. According to the air conditioner of the present invention, by providing the first wind wheel and the second wind wheel, the air conditioner can have air supply diversity and comfort. Moreover, there is no mutual interference between the air flow in the first wind wheel placement cavity and the air flow in the second wind wheel placement cavity, improving the stability and reliability of the operation of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to an air conditioner. Background Art

[0002] Cross-flow fans are widely used in the indoor units of air conditioners due to their low noise and slender installation space. In related technologies, an air conditioner using a cross-flow fan for air supply can only supply one type of air feeling at the same time. Moreover, due to the relatively low pressure generated by the cross-flow fan, the air supply distance is limited, and users have a poor experience in occasions where long-distance air supply is required. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an air conditioner, which has the advantages of diversified air supply and good user experience.

[0004] An air conditioner according to an embodiment of the present invention includes: a housing, an air inlet and an air outlet are provided on the housing, and a heat exchange air duct communicating with the air inlet is provided inside the housing; a heat exchanger, the heat exchanger is arranged in the heat exchange air duct; an air duct component, the air duct component is arranged inside the housing, a first impeller placement cavity and a second impeller placement cavity are provided inside the air duct component, the first impeller placement cavity communicates with the heat exchange air duct, the second impeller placement cavity is arranged separately from the heat exchange air duct and communicates with the air inlet, and both the first impeller placement cavity and the second impeller placement cavity communicate with the air outlet; an impeller assembly, the impeller assembly includes a first impeller and a second impeller, the first impeller is arranged in the first impeller placement cavity, and the second impeller is arranged in the second impeller placement cavity; a motor assembly, both the first impeller and the second impeller are driven to rotate by the motor assembly.

[0005] An air conditioner according to an embodiment of the present invention can make the air conditioner have diversified air supply and comfort by arranging a first impeller in the first impeller placement cavity and a second impeller in the second impeller placement cavity. Moreover, the air flow in the first impeller placement cavity is blown out from the air outlet after heat exchange with the heat exchanger, and the air flow in the second impeller placement cavity is blown out directly without heat exchange with the heat exchanger. Thus, it is possible to avoid the mutual interference of the air flows in the first impeller placement cavity and the second impeller placement cavity, and improve the stability and reliability of the operation of the air conditioner.

[0006] According to some embodiments of the present invention, the second impeller placement cavity is provided at least at one of the upper, lower, left, and right sides of the first impeller placement cavity.

[0007] In some embodiments of the present invention, there is one second impeller placement cavity, and the second impeller placement cavity is located above or below the first impeller placement cavity.

[0008] According to some embodiments of the present invention, there are two second wind wheel placement cavities, which are distributed on the upper and lower sides of the first wind wheel placement cavity.

[0009] In some embodiments of the present invention, the first wind wheel and the second wind wheel are coaxially arranged, the motor assembly includes a dual-axis motor, and the first wind wheel and the second wind wheel are respectively connected to two output shafts of the dual-axis motor.

[0010] According to some embodiments of the present invention, the minimum axial distance between the first wind wheel and the second wind wheel is L, satisfying: L≥100mm.

[0011] In some embodiments of the present invention, the motor assembly includes a first drive motor and a second drive motor. The first wind wheel is driven to rotate by the first drive motor, and the second wind wheel is driven to rotate by the second drive motor.

[0012] According to some embodiments of the present invention, there are multiple air outlets, and an inner layer air guiding strip and a rotatable outer layer air guiding plate are correspondingly arranged at each air outlet. The rotation axes of the outer layer air guiding plates at two adjacent air outlets are vertically arranged.

[0013] In some embodiments of the present invention, the air outlets include a first air outlet and a second air outlet. The first wind wheel placement cavity is communicated with the first air outlet, and the second wind wheel placement cavity is communicated with the second air outlet.

[0014] According to some embodiments of the present invention, the area of the first air outlet is S1, and the area of the second air outlet is S2, satisfying: 10%≤S2 / (S1 + S2)≤50%.

[0015] In some embodiments of the present invention, a pressure regulating member is provided in the second wind wheel placement cavity. An air outlet passage is defined in the pressure regulating member. The cross-sectional area of the second air outlet is S2, and the cross-sectional area of the outlet end of the air outlet passage is S3, satisfying: S2≠S3.

[0016] According to some embodiments of the present invention, the cross-sectional area of the air outlet passage gradually decreases along the flow direction of the air flow.

[0017] In some embodiments of the present invention, the first wind wheel is one of a centrifugal wind wheel, a cross-flow wind wheel, and an axial-flow wind wheel, and the second wind wheel is one of a centrifugal wind wheel, a cross-flow wind wheel, and an axial-flow wind wheel.

[0018] According to some embodiments of the present invention, the air conditioner is a split floor-mounted air conditioner, or a split wall-mounted air conditioner, or a ceiling-mounted air conditioner, or a window air conditioner or a mobile air conditioner.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a schematic structural diagram of an air conditioner according to a first embodiment of the present invention;

[0022] Figure 2 is Figure 1 a cross-sectional view of the A-A section shown in ;

[0023] Figure 3 is a top view of the air conditioner according to the first embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of an air conditioner according to the first embodiment of the present invention;

[0025] Figure 5 is a schematic structural diagram of an air conditioner according to the first embodiment of the present invention;

[0026] Figure 6 is a schematic structural diagram of an air conditioner according to the first embodiment of the present invention;

[0027] Figure 7 is a schematic structural diagram of an air conditioner according to the first embodiment of the present invention;

[0028] Figure 8 is a schematic structural diagram of an air conditioner according to the first embodiment of the present invention;

[0029] Figure 9 is a schematic structural diagram of an air conditioner according to the first embodiment of the present invention;

[0030] Figure 10 is a schematic structural diagram of an air conditioner according to a second embodiment of the present invention;

[0031] Figure 11 is Figure 10 a cross-sectional view of the B-B section shown in ;

[0032] Figure 12 is a top view of the air conditioner according to the second embodiment of the present invention;

[0033] Figure 13 is a schematic structural diagram of an air conditioner according to the second embodiment of the present invention;

[0034] Figure 14It is a schematic structural diagram of an air conditioner according to the second embodiment of the present invention;

[0035] Figure 15 It is a schematic structural diagram of an air conditioner according to the second embodiment of the present invention;

[0036] Figure 16 It is a schematic structural diagram of an air conditioner according to the third embodiment of the present invention;

[0037] Figure 17 It is Figure 16 a cross-sectional view of the C-C section shown in;

[0038] Figure 18 It is a top view of an air conditioner according to the third embodiment of the present invention;

[0039] Figure 19 It is a schematic structural diagram of an air conditioner according to the third embodiment of the present invention;

[0040] Figure 20 It is a schematic structural diagram of an air conditioner according to the third embodiment of the present invention;

[0041] Figure 21 It is a schematic structural diagram of an air conditioner according to the third embodiment of the present invention;

[0042] Figure 22 It is a schematic structural diagram of an air conditioner according to the third embodiment of the present invention;

[0043] Figure 23 It is a schematic structural diagram of an air conditioner according to the third embodiment of the present invention;

[0044] Figure 24 It is a schematic structural diagram of an air conditioner according to the fourth embodiment of the present invention;

[0045] Figure 25 It is Figure 24 a cross-sectional view of the D-D section shown in;

[0046] Figure 26 It is a top view of an air conditioner according to the fourth embodiment of the present invention;

[0047] Figure 27 It is a schematic structural diagram of an air conditioner according to the fourth embodiment of the present invention;

[0048] Figure 28 It is a schematic structural diagram of an air conditioner according to the fourth embodiment of the present invention;

[0049] Figure 29 It is a schematic structural diagram of an air conditioner according to the fourth embodiment of the present invention;

[0050] Figure 30It is a schematic structural diagram of an air conditioner according to the fourth embodiment of the present invention;

[0051] Figure 31 It is a schematic structural diagram of an air conditioner according to the fourth embodiment of the present invention.

[0052] Reference numerals:

[0053] Air conditioner 100, housing 10, first indoor air inlet 110, second indoor air inlet 120, heat exchange air duct 130, first air outlet 141, second air outlet 142, heat exchanger 20, air duct component 30, first wind wheel placement cavity 310, second wind wheel placement cavity 320, first wind wheel 410, second wind wheel 420, motor assembly 50, voltage regulator 70, air outlet passage 710,

[0054] Air conditioner 100a, housing 10a, front panel 101a, air inlet 110a, heat exchange air duct 120a, first air outlet 131a, second air outlet 132a, heat exchanger 20a, air duct component 30a, first wind wheel placement cavity 311a, second wind wheel placement cavity 312a, first wind wheel 410a, second wind wheel 420a, motor assembly 50a, voltage regulator 70a, air outlet passage 710a,

[0055] Air conditioner 100b, housing 10b, air inlet 110b, heat exchange air duct 130b, first air outlet 121b, second air outlet 122b, heat exchanger 20b, air duct component 30b, first wind wheel placement cavity 310b, second wind wheel placement cavity 320b, connecting air duct 330b, air duct component 30b, first wind wheel 410b, second wind wheel 420b, motor assembly 50b, voltage regulator 70b, air outlet passage 710b,

[0056] Air conditioner 100c, housing 10c, air inlet 110c, heat exchange air duct 130c, first air outlet 121c, second air outlet 122c, heat exchanger 20c, air duct component 30c, first wind wheel placement cavity 310c, second wind wheel placement cavity 320c, connecting air duct 330c, air duct component 30c, first wind wheel 410c, second wind wheel 420c, motor assembly 50c, voltage regulator 70c, air outlet passage 710c. Detailed implementation manners

[0057] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0059] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Next, with reference to Figures 1 - 31 the air conditioner according to four embodiments of the present invention will be described. First, refer to Figures 1 - 9 the air conditioner 100 according to the first embodiment of the present invention will be described.

[0061] As Figure 1 and Figure 2 shown, the air conditioner 100 according to the embodiment of the present invention includes: a housing 10, a heat exchanger 20, a duct component 30, a blower assembly, and a motor assembly 50.

[0062] Specifically, as Figure 2 shown, the housing 10 is provided with an air inlet and an air outlet. Among them, the air inlet may include: a first indoor air inlet 110 and a second indoor air inlet 120. A heat exchange duct 130 communicating with the air inlet is provided inside the housing 10. As Figure 2 shown, the first indoor air inlet 110 communicates with the heat exchange duct 130, and the heat exchanger 20 is provided inside the heat exchange duct 130. Thus, the indoor air can enter the air conditioner 100 from the first indoor air inlet 110 and the second indoor air inlet 120. Among them, the air flow from the first indoor air inlet 110 can enter the heat exchange duct 130 and exchange heat through the heat exchanger 20.

[0063] The duct component 30 is provided inside the housing 10. The duct component 30 can define an air flow passage so that the air flow can flow along the air flow passage.

[0064] As shown Figure 2 in FIG. Figure 2 , a first wind wheel placement cavity 310 and a second wind wheel placement cavity 320 are provided in the air duct component 30. The first wind wheel placement cavity 310 communicates with the heat exchange air duct 130, and the second wind wheel placement cavity 320 is arranged separately from the heat exchange air duct 130 and communicates with the second indoor air inlet 120. Both the first wind wheel placement cavity 310 and the second wind wheel placement cavity 320 communicate with the air outlet. As shown Figure 2 in FIG. Figure 2 , the first wind wheel placement cavity 310 has a first air outlet 141, and the second wind wheel placement cavity 320 has a second air outlet 142.

[0065] The wind wheel assembly includes a first wind wheel 410 and a second wind wheel 420. The first wind wheel 410 is arranged in the first wind wheel placement cavity 310, and the second wind wheel 420 is arranged in the second wind wheel placement cavity 320. The first wind wheel 410 and the second wind wheel 420 are driven to rotate by the motor assembly.

[0066] It should be noted that the indoor air flow can enter the heat exchange air duct 130 through the first indoor air inlet 110. After heat exchange with the heat exchanger 20 in the heat exchange air duct 130, the air flow enters the first wind wheel placement cavity 310 and is blown out from the first air outlet 141 after being pressurized by the first wind wheel 410. The indoor air flow can also enter the second wind wheel placement cavity 320 through the second indoor air inlet 120. Since the second wind wheel placement cavity 320 is separated from the heat exchange air duct 130, the air flow in the second wind wheel placement cavity 320 does not exchange heat with the heat exchanger 20 and is blown out from the second air outlet 142 after being pressurized by the second wind wheel 420.

[0067] One of the first wind wheel 410 and the second wind wheel 420 can have a greater pressure, so that the air flow can be pressurized and transported to a farther place. Thus, by providing the first wind wheel 410 and the second wind wheel 420 in the air conditioner 100, the air conditioner 100 can have different air supply effects.

[0068] For the air conditioner 100 according to the embodiment of the present invention, by providing the first wind wheel 410 in the first wind wheel placement cavity 310 and the second wind wheel 420 in the second wind wheel placement cavity 320, the air conditioner 100 can have air supply diversity and comfort. Moreover, the air flow in the first wind wheel placement cavity 310 is blown out from the air outlet after heat exchange with the heat exchanger 20, and the air flow in the second wind wheel placement cavity 320 is blown out directly without heat exchange with the heat exchanger 20. Thus, the mutual interference between the air flows in the first wind wheel placement cavity 310 and the second wind wheel placement cavity 320 can be avoided, and the stability and reliability of the operation of the air conditioner 100 are improved.

[0069] According to some embodiments of the present invention, at least one of the upper, lower, left, and right sides of the first wind wheel placement cavity 310 is provided with a second wind wheel placement cavity 320. That is to say, a second wind wheel placement cavity 320 can be provided at one of the upper, lower, left, and right sides of the first wind wheel placement cavity 310; a second wind wheel placement cavity 320 can also be provided at two of the upper, lower, left, and right sides of the first wind wheel placement cavity 310; a second wind wheel placement cavity 320 can also be provided at three of the upper, lower, left, and right sides of the first wind wheel placement cavity 310; of course, a second wind wheel placement cavity 320 can also be provided on all of the upper, lower, left, and right sides of the first wind wheel placement cavity 310. Thereby, the flexibility and diversity of the layout of the first wind wheel placement cavity 310 and the second wind wheel placement cavity 320 are improved, so that the number and positions of the first wind wheel placement cavity 310 and the second wind wheel placement cavity 320 can be set according to the actual air outlet requirements of the air conditioner 100.

[0070] According to some embodiments of the present invention, as Figure 2 , Figure 4 and Figure 5 shown, there is one second wind wheel placement cavity 320, and the second wind wheel placement cavity 320 is located above or below the first wind wheel placement cavity 310. That is to say, one second wind wheel placement cavity 320 can be provided above the first wind wheel placement cavity 310, or one second wind wheel placement cavity 320 can be provided below the first wind wheel placement cavity 310.

[0071] As Figure 4 and Figure 5 shown, the air duct component 30 is provided with a first wind wheel placement cavity 310 and a second wind wheel placement cavity 320 that are isolated. The second wind wheel placement cavity 320 is located above the first wind wheel placement cavity 310.

[0072] It should be noted that the indoor air can enter the heat exchange air duct 130 from the first indoor air inlet 110. The air flow exchanges heat with the heat exchanger 20 in the heat exchange air duct 130 and then flows into the first wind wheel placement cavity 310. The air flow in the first wind wheel placement cavity 310 is accelerated by the first wind wheel 410 and then blown out from the first air outlet 141; the indoor air can also enter the second wind wheel placement cavity 320 from the second indoor air inlet 120. The air flow in the second wind wheel placement cavity 320 does not exchange heat with the heat exchanger 20 and is directly blown out from the second air outlet 142 under the action of the second wind wheel 420.

[0073] It should be noted that the pressure of one of the first wind wheel 410 and the second wind wheel 420 is relatively large, and the pressure of the other wind wheel is relatively small. Thus, the wind wheel with a relatively large pressure can direct the air flow to a farther distance to achieve long-distance air supply. The wind wheel with a relatively small pressure can blow out the air flow evenly and stably to achieve short-distance comfortable air supply. Moreover, the air flow blown out by the wind wheel with a relatively large pressure can guide the air flow of the wind wheel with a relatively small pressure to blow to a farther distance, which is beneficial to improving the refrigeration or heating efficiency of the air conditioner 100. Moreover, the diversity and comfort of the air supply of the air conditioner 100 are realized.

[0074] In some embodiments of the present invention, as Figures 6 - 8 shown, there may be two second wind wheel placement cavities 320, which are distributed on the upper and lower sides of the first wind wheel placement cavity 310. That is to say, a second wind wheel 420 can be provided on each of the upper and lower sides of the first wind wheel 410.

[0075] It should be noted that the indoor air can enter the heat exchange air duct 130 from the first indoor air inlet 110. After the air flow exchanges heat through the heat exchanger 20, it flows into the first wind wheel placement cavity 310. The air flow in the first wind wheel placement cavity 310 can be blown out from the first air outlet 141 after being pressurized by the first wind wheel 410; the indoor air can also enter the corresponding second wind wheel placement cavity 320 from the corresponding second indoor air inlet 120 and be blown out from the corresponding second air outlet 142 after being pressurized by the second wind wheel 420 in the second wind wheel placement cavity 320. Thus, the diversity of the air supply of the air conditioner 100 can be further improved, and accordingly, it can be controlled and adjusted according to the air supply requirements in different working modes of the air conditioner 100.

[0076] The two second wind wheels 420 and the first wind wheel 410 can supply air simultaneously. The first wind wheel 410 can also supply air simultaneously with one of the two second wind wheels 420, and the other second wind wheel 420 does not operate. The two second wind wheels 420 can also both not operate, and only the first wind wheel 410 operates to supply air. When the upper second wind wheel 420 operates, the upper air flow can be transported to a relatively far distance; when the lower second wind wheel 420 operates, the lower air flow can be transported to a relatively far distance.

[0077] According to some embodiments of the present invention, as Figure 2As shown, the first wind wheel 410 and the second wind wheel 420 can be coaxially arranged. The motor assembly 50 can include a dual-axis motor, and the first wind wheel 410 and the second wind wheel 420 are respectively connected to the two output shafts of the dual-axis motor. That is to say, the central axis of the first wind wheel 410 and the central axis of the second wind wheel 420 can be located on the same straight line, and the first wind wheel 410 and the second wind wheel 420 share a dual-axis motor respectively. Thus, it is convenient for the layout and assembly of the first wind wheel 410 and the second wind wheel 420, which is beneficial to making the structure of the air conditioner 100 compact and reasonable. Moreover, the first wind wheel 410 and the second wind wheel 420 can share a dual-axis motor, reducing the production cost of the air conditioner 100 and facilitating the control and adjustment of the air conditioner 100.

[0078] According to some embodiments of the present invention, the minimum distance between the first wind wheel 410 and the second wind wheel 420 in the axial direction is L, satisfying: L≥100mm. As Figure 2 shown, the first wind wheel 410 and the second wind wheel 420 can be coaxially arranged, and the minimum axial distance between the first wind wheel 410 and the second wind wheel 420 is not less than 100mm. Thus, it is convenient for the layout and assembly of the dual-axis motor between the first wind wheel 410 and the second wind wheel 420, which is beneficial to improving the assembly efficiency of the air conditioner 100.

[0079] It should be noted that the central axes of the rotating shafts of the first wind wheel 410 and the second wind wheel 420 may not be located on the same straight line either. For example, in some embodiments of the present invention, the motor assembly 50 can include a first driving motor and a second driving motor. The first wind wheel 410 is driven to rotate by the first driving motor, and the second wind wheel 420 is driven to rotate by the second driving motor. Thus, the layout and assembly of the first wind wheel 410 and the second wind wheel 420 can be made more flexible and convenient. Moreover, the first wind wheel 410 and the second wind wheel 420 can be independently controlled, which is beneficial to improving the diversity of the air conditioner 100.

[0080] In some embodiments of the present invention, there can be multiple air outlets. An inner layer air guiding strip and a rotatable outer layer air guiding plate can be correspondingly arranged at each air outlet, and the rotation axes of the outer layer air guiding plates at two adjacent air outlets are vertically arranged. As Figure 2 、 Figure 4 and Figure 5 shown, the air outlets include a second air outlet 142 and a first air outlet 141 which are arranged at intervals up and down. A horizontally extending outer layer air guiding plate can be correspondingly arranged at the second air outlet 142, so that the second air outlet 142 can achieve an up-and-down swinging air supply effect. A vertically extending outer layer air guiding plate can be correspondingly arranged at the first air outlet 141, so that the first air outlet 141 can have a left-and-right swinging air supply effect. Thus, the diversity and comfort of the air supply of the air conditioner 100 can be further improved.

[0081] In some other embodiments of the present invention, as Figures 6 - 8 shown, the air outlet may include second air outlets 142, first air outlets 141, and second air outlets 142 arranged in the up-down direction in sequence. The first air outlets 141 may be provided with outer air guide plates extending in the vertical direction, so as to achieve the effect of swinging the air supply left and right at the first air outlets 141. The second air outlets 142 on the upper and lower sides may be provided with outer air guide plates extending in the horizontal direction, so that the second air outlets 142 on the upper and lower sides have the effect of swinging the air supply up and down, thereby improving the diversity of the air supply of the air conditioner 100.

[0082] According to some embodiments of the present invention, the area of the first air outlet 141 is S1, and the area of the second air outlet 142 is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%. As Figure 2 、 Figures 4 - 8 shown, the area of the first air outlet 141 corresponding to the first air wheel 410 is S1, and the area of the second air outlet 142 corresponding to the second air wheel 420 is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%.

[0083] It should be noted that the area of the second air outlet 142 should not be set too large, so as not to affect the air outlet speed and air supply distance of the second air outlet 142. The area of the second air outlet 142 should not be set too small, so as not to affect the air supply volume of the second air outlet 142. Through experimental verification, when the area S1 of the first air outlet 141 and the area S2 of the second air outlet 142 satisfy: 10% ≤ S2 / (S1 + S2) ≤ 50%, the air conditioner 100 can have a better air supply distance and air supply volume, improving the working performance of the air conditioner 100.

[0084] In some embodiments of the present invention, the second air outlet 142 may be arranged close to the top end of the housing 10. As Figure 2 、 Figure 4 and Figure 5 shown, the second air outlet 142 corresponding to the second air wheel 420 may be arranged close to the top end of the housing 10. It should be noted that when the air conditioner 100 operates in the no-wind feeling operation mode, the second air outlet 142 located at the top end of the housing 10 can lead the air flow upward in a parabolic shape, effectively avoiding the air flow from directly blowing on the user, and improving the air supply comfort and user experience of the air conditioner 100.

[0085] In some embodiments of the present invention, as Figure 9As shown, a pressure regulating member 70 may be provided in the second wind wheel placement cavity 320. An air outlet passage 710 is defined within the pressure regulating member 70. The cross-sectional area of the second air outlet 152 is S2, and the cross-sectional area of the outlet end of the air outlet passage 710 is S3, satisfying: S2 ≠ S3. That is to say, the cross-sectional area S2 of the second air outlet 142 and the cross-sectional area S3 of the outlet end of the air outlet passage 710 may satisfy: S2 > S3, or S2 < S3. Thus, a gradually narrowing or gradually expanding air outlet passage 710 can be formed within the second wind wheel placement cavity 320, so that the air velocity within the air outlet passage 710 can be changed, and furthermore, the diversity of the air supply of the air conditioner 100 can be improved.

[0086] According to some embodiments of the present invention, as Figure 8 shown, the cross-sectional area of the air outlet passage 710 gradually decreases along the flow direction of the air flow. Thus, when the air flow flows within the air outlet passage 710, since the cross-sectional area of the air outlet passage 710 gradually decreases, the air flow velocity within the air outlet passage 710 can be gradually increased, which is beneficial to the air supply distance of the second air outlet 142.

[0087] According to some embodiments of the present invention, the air conditioner 100 may be a split floor-mounted air conditioner, or a split wall-mounted air conditioner, or a ceiling unit, or a window air conditioner or a portable air conditioner. As Figures 1 - 8 shown, the air conditioner 100 may be a cabinet air conditioner 100. The air conditioner 100 has a first wind wheel 410 and a second wind wheel 420 spaced apart in the vertical direction, and corresponding first air outlet 141 and second air outlet 142 are provided on the front side of the housing 10. Thus, the cabinet air conditioner 100 can have air supply diversity, improving the air supply comfort and user experience of the cabinet air conditioner 100. It can be understood that when the air conditioner 100 is other types of air conditioners, by providing a first wind wheel placement cavity 310 and a second wind wheel placement cavity 320 within the air conditioner 100, the air conditioner 100 can have air supply diversity, improving the working performance of the air conditioner 100.

[0088] In some embodiments of the present invention, the first wind wheel 410 can be one of a centrifugal wind wheel, a cross-flow wind wheel, and an axial-flow wind wheel, and the second wind wheel 420 can be one of a centrifugal wind wheel, a cross-flow wind wheel, and an axial-flow wind wheel. For example, multiple centrifugal wind wheels can be provided inside the air conditioner 100, or multiple cross-flow wind wheels can be provided inside the air conditioner 100, or multiple axial-flow wind wheels can be provided inside the air conditioner 100, or a centrifugal wind wheel and a cross-flow wind wheel can be provided inside the air conditioner 100, or a centrifugal wind wheel and an axial-flow wind wheel can be provided inside the air conditioner 100, or a cross-flow wind wheel and an axial-flow wind wheel can be provided inside the air conditioner 100, or a centrifugal wind wheel, a cross-flow wind wheel, and an axial-flow wind wheel can be provided in the air conditioner 100. Thus, the diversity and flexibility of the design of the air conditioner 100 can be improved. Since the centrifugal wind wheel, the cross-flow wind wheel, and the axial-flow wind wheel have different air supply distances and air supply volumes, during the design and manufacture of the air conditioner 100, the corresponding wind wheel combination and arrangement can be selected according to the actual air supply requirements.

[0089] For example, it can be that the first wind wheel 410 is a centrifugal wind wheel and the second wind wheel 420 is a cross-flow wind wheel. At this time, the air flow from the first indoor air inlet 110 enters the heat exchange air duct 130, undergoes heat exchange in the heat exchange air duct 130, then enters the first wind wheel placement cavity 310, and flows out from the first air outlet 141 under the action of the centrifugal wind wheel. The air flow from the second indoor air inlet 120 enters the second wind wheel placement cavity 320. The air flow in the second wind wheel placement cavity 320 does not undergo heat exchange with the heat exchanger 20, and is blown out from the second air outlet 142 under the action of the cross-flow wind wheel.

[0090] Of course, it can also be that the first wind wheel 410 is a cross-flow wind wheel and the second wind wheel 420 is a centrifugal wind wheel. At this time, the air flow from the first indoor air inlet 110 enters the heat exchange air duct 130, undergoes heat exchange in the heat exchange air duct 130, then enters the first wind wheel placement cavity 310, and flows out from the first air outlet 141 under the action of the cross-flow wind wheel. The air flow from the second indoor air inlet 120 enters the second wind wheel placement cavity 320. The air flow in the second wind wheel placement cavity 320 does not undergo heat exchange with the heat exchanger 20, and is blown out from the second air outlet 142 under the action of the centrifugal wind wheel. The centrifugal wind wheel can direct the air flow to a distance, realizing the disturbance effect of the indoor air flow, so as to improve the cooling or heating efficiency of the air conditioner 100.

[0091] The following refers to Figures 1 - 8 Two specific embodiments are used to describe in detail the air conditioner 100 according to the first embodiment of the present invention. It should be understood that the following description is only an exemplary description and not a specific limitation of the present invention.

[0092] Embodiment 1:

[0093] As Figures 1 - 5As shown, the air conditioner 100 is a floor-standing air conditioner 100, and the air conditioner 100 includes: a housing 10, a heat exchanger 20, a duct component 30, a wind wheel assembly, and a motor assembly 50.

[0094] Among them, as Figure 2 shown, a first indoor air inlet 110 and a second indoor air inlet 120 are provided on the rear wall of the housing 10. A heat exchange duct 130 communicating with the first indoor air inlet 110 is provided inside the housing 10, and the heat exchanger 20 is arranged in the heat exchange duct 130.

[0095] The duct component 30 is arranged inside the housing 10, and the duct component 30 defines an air flow passage. A first wind wheel placement cavity 310 and a second wind wheel placement cavity 320 are provided inside the duct component 30. The second wind wheel placement cavity 320 is located above the first wind wheel placement cavity 310. A cross-flow wind wheel is provided in the first wind wheel placement cavity 310, and a centrifugal wind wheel is provided in the second wind wheel placement cavity 320. The central axis of the centrifugal wind wheel and the central axis of the cross-flow wind wheel are on the same straight line. The centrifugal wind wheel and the cross-flow wind wheel are respectively connected to two output shafts of a dual-axis motor. The minimum distance between the centrifugal wind wheel and the cross-flow wind wheel is L, satisfying: L≥100mm.

[0096] The first wind wheel placement cavity 310 communicates with the heat exchange duct 130, and the second wind wheel placement cavity 320 is arranged separately from the heat exchange duct 130 and the second wind wheel placement cavity 320 communicates with the second indoor air inlet 120.

[0097] A first air outlet 141 communicating with the first wind wheel placement cavity 310 and a second air outlet 142 communicating with the second wind wheel placement cavity 320 are provided on the front wall of the housing 10. Among them, the outer air deflector at the second air outlet 142 extends in the horizontal direction to achieve an up-and-down swinging air supply effect at the second air outlet 142. The outer air deflector at the first air outlet 141 extends in the vertical direction to achieve a left-and-right swinging air supply effect at the first air outlet 141. The area of the first air outlet 141 is S1, and the area of the second air outlet 142 is S2, satisfying: S2 / S1 = 2 / 5.

[0098] It should be noted that in the related art, when the air conditioner operates in the cooling mode, since the cold air flow blown out from the air outlet sinks and the air supply distance decreases, the cooling speed at a place far from the air conditioner decreases. Moreover, the temperature difference between the far and near in the room is large, affecting the user experience of the air conditioner.

[0099] When the air conditioner turns on the cooling without wind feeling mode, in order to make the wind feeling soft and comfortable, the air flow speed drops sharply and the air supply distance is small. This makes the temperature uneven between the far and near of the air conditioner, further affecting the comfort experience of the air conditioner.

[0100] When the air conditioner operates in the heating mode, the hot air flow blown out from the air outlet quickly floats upward under the action of air pressure, making it difficult to deliver the hot air flow to the lower position of the feet, which affects the comfort of the air conditioner in the heating mode.

[0101] For the air conditioner 100 according to the present invention, when the air conditioner 100 is in the cooling mode, the centrifugal fan in the upper second fan placement cavity 320 can send the pressurized air to a farther distance. Moreover, the cold air flow blown out from the second air outlet 142 can guide the cold air flow blown out from the first air outlet 141 to blow far away, so that the settling speed of the cold air flow blown out from the air outlet can be slowed down, and thus the temperature in the room can be made more uniform.

[0102] When the air conditioner 100 operates in the direct cooling and draft-free mode, the air flow from the upper second air outlet 142 can be sent in a parabolic shape, so that the air flow is delivered to a farther distance, making the temperature field at different positions in the room more uniform and compensating for the defect of insufficient long-distance cold quantity delivery in the micro-hole draft-free mode.

[0103] Embodiment Two:

[0104] As Figures 6 - 8 shown, different from Embodiment One, in this embodiment, two second fan placement cavities 320 are provided in the air conditioner 100, and the two second fan placement cavities 320 are arranged at the upper and lower ends of the first fan placement cavity 310 at intervals. The central axes of the rotating shafts of the cross-flow fan and one of the centrifugal fans are located on the same straight line, and the cross-flow fan and this centrifugal fan share a coaxial motor. Another centrifugal fan is driven by a separate motor. Thus, by providing two centrifugal fans and a cross-flow fan, the diversity and comfort of the air supply of the air conditioner 100 can be improved.

[0105] It should be noted that the two centrifugal fans and the cross-flow fan can supply air simultaneously, or the cross-flow fan can supply air simultaneously with one of the two centrifugal fans, and the other centrifugal fan does not operate. The two centrifugal fans can also both not operate, and only the cross-flow fan operates to supply air. When the lower centrifugal fan operates, the air flow below can be delivered to a farther distance. Thus, in the heating mode, the hot air flow blown out by the cross-flow fan can be delivered to the feet by operating the lower centrifugal fan, realizing carpet-like heating with good comfort.

[0106] Next, refer to Figures 10 - 15 to describe the air conditioner 100a according to the second embodiment of the present invention.

[0107] As Figure 10 and Figure 11 shown, for the air conditioner 100a according to the embodiment of the present invention, the air conditioner 100a includes: a front panel 101a, a heat exchanger 20a, a duct component 30a, a fan assembly, and a motor assembly 50a.

[0108] Specifically, if Figure 11 As shown, the front panel 101a has a first air outlet 131a and a second air outlet 132a. It should be noted that the "front panel 101a" can be understood as the panel of the air conditioner 100a facing the user and away from the wall. The heat exchanger 20a is located at the rear side of the front panel 101a and is arranged in the heat exchange duct 120a of the air conditioner 100a. As a result, the airflow in the heat exchange duct 120a can exchange heat with the heat exchanger 20a, and the airflow after heat exchange can flow out from the first air outlet 131a and the second air outlet 132a to achieve the cooling or heating function of the air conditioner 100a.

[0109] The air duct component 30a defines a first wind wheel placement cavity 311a and a second wind wheel placement cavity 312a. The first wind wheel placement cavity 311a is connected to the heat exchange air duct 120a and the first air outlet 131a, respectively. The second wind wheel placement cavity 312a is connected to the heat exchange air duct 120a and the second air outlet 132a, respectively. Thus, a portion of the airflow after heat exchange in the heat exchange air duct 120a can flow into the first wind wheel placement cavity 311a and flow out from the first air outlet 131a. The other portion can flow into the second wind wheel placement cavity 312a and flow out from the second air outlet 132a.

[0110] like Figure 11 , Figure 13 and Figure 14 As shown, the wind wheel assembly includes a first wind wheel 410a and a second wind wheel 420a. The first wind wheel 410a is arranged in the first wind wheel placement cavity 311a, and the second wind wheel 420a is arranged in the second wind wheel placement cavity 312a. The first wind wheel 410a and the second wind wheel 420a are both driven to rotate by the motor assembly 50a. The vertical plane perpendicular to the front-to-back direction is defined as the projection plane. In the orthographic projection of the air conditioner 100a in the projection plane, the center of the first wind wheel 410a is located inside the heat exchanger 20a, and the center of the second wind wheel 420a is located outside the heat exchanger 20a.

[0111] It should be noted that if Figure 13 and Figure 14 As shown, along the front-to-back projection, the center of the first wind wheel 410a is located inside the heat exchanger 20a, that is, the first wind wheel 410a and the heat exchanger 20a can be arranged at least partially opposite to each other along the front-to-back direction. As a result, the airflow after heat exchange in the heat exchanger 20a can flow directly to the first wind wheel 410a, which is conducive to reducing the distance between the first wind wheel 410a and the heat exchanger 20a, thereby helping to reduce the energy loss of the airflow and improve the working efficiency of the air conditioner 100a.

[0112] In the orthographic projection of the air conditioner 100a within the projection plane, the center of the second wind wheel 420a is located outside the heat exchanger 20a, enabling the second wind wheel 420a and the heat exchanger 20a to be at least partially non-facing each other in the front-rear direction. As Figure 13 and Figure 14 shown, the second wind wheel 420a can be disposed above or below the heat exchanger 20a. Of course, the second wind wheel 420a can also be disposed to the left, right, or other positions of the heat exchanger 20a. Thereby, a relatively large assembly space can be provided for the second wind wheel 420a, so that a second wind wheel 420a with a relatively large size can be selected, which is conducive to increasing the air outlet speed and air volume at the second air outlet 132a, and improving the air supply diversity of the air conditioner 100a.

[0113] In the air conditioner 100a according to an embodiment of the present invention, by placing the first wind wheel 410a in the first wind wheel placement cavity 311a, placing the second wind wheel 420a in the second wind wheel placement cavity 312a, and providing a first air outlet 131a communicating with the first wind wheel placement cavity 311a and a second air outlet 132a communicating with the second wind wheel placement cavity 312a on the front panel 101a, the air conditioner 100a can have different air supply modes, enabling the air conditioner 100a to have a comfortable air supply effect in different working modes, thereby improving the comfort of the air supply of the air conditioner 100a. Moreover, when projected in the front-rear direction, the center of the first wind wheel 410a is located within the heat exchanger 20a, and the center of the second wind wheel 420a is located outside the heat exchanger 20a, which can provide a relatively large installation space for the second wind wheel 420a, so that the size of the second wind wheel 420a can be increased, and further conducive to increasing the air supply speed and air supply distance of the second air outlet 132a.

[0114] According to some embodiments of the present invention, in the orthographic projection of the air conditioner 100a within the projection plane, all or most of the second wind wheel 420a is located outside the heat exchanger 20a. That is to say, when projected in the front-rear direction, the second wind wheel 420a can be entirely located outside the heat exchanger 20a; or when projected in the front-rear direction, most of the second wind wheel 420a can be located outside the heat exchanger 20a.

[0115] As Figure 13 and Figure 14 shown, when projected in the front-rear direction, the second wind wheel 420a is completely located outside the heat exchanger 20a. Thereby, a relatively large assembly space can be provided for the second wind wheel 420a, facilitating the setting of a second wind wheel 420a with a relatively large size in the second wind wheel placement cavity 312a to increase the air supply volume and air supply distance of the second air outlet 132a.

[0116] In some embodiments of the present invention, when projected in the front-rear direction, a second wind wheel 420a is provided at at least one of the upper, lower, left, or right sides of the heat exchanger 20a. That is to say, the second wind wheel 420a can be provided at one of the upper, lower, left, and right sides of the heat exchanger 20a; the second wind wheel 420a can also be provided at two of the upper, lower, left, and right sides of the heat exchanger 20a; the second wind wheel 420a can also be provided at three of the upper, lower, left, and right sides of the heat exchanger 20a; of course, the second wind wheel 420a can also be provided on all of the upper, lower, left, and right sides of the heat exchanger 20a. Thus, the flexibility and diversity of the layout of the second wind wheel 420a are improved, and the number and position of the second wind wheel 420a can be set according to the actual air outlet requirements of the air conditioner 100a.

[0117] According to some embodiments of the present invention, as Figure 13 and Figure 14 shown, in the front projection of the air conditioner 100a in the projection plane, at least a part of the first wind wheel 410a is located in the first air outlet 131a. That is to say, along the front-rear direction, the first wind wheel 410a can be arranged entirely or partially opposite to the first air outlet 131a. Thus, the first wind wheel 410a can directly blow out the air flow after pressurization from the first air outlet 131a, thereby reducing the energy consumption loss of the air flow in the air conditioner 100a and being beneficial to making the structure of the air conditioner 100a compact and reasonable.

[0118] In some embodiments of the present invention, as Figure 13 and Figure 14 shown, in the front projection of the air conditioner 100a in the projection plane, at least a part of the second wind wheel 420a is located in the second air outlet 132a. That is to say, along the front-rear direction, the first wind wheel 420a can be arranged entirely or partially opposite to the second air outlet 132a. Thus, the second wind wheel 420a can directly blow out the air flow after pressurization from the second air outlet 132a, thereby reducing the energy consumption loss of the air flow in the air conditioner 100a and being beneficial to making the structure of the air conditioner 100a compact and reasonable.

[0119] According to some embodiments of the present invention, as Figure 11 and Figure 13 shown, the second wind wheel placement cavity 312a can be one and is provided above or below the first wind wheel placement cavity 311a. That is to say, one second wind wheel placement cavity 312a can be provided above the first wind wheel placement cavity 311a, or one second wind wheel placement cavity 312a can be provided below the first wind wheel placement cavity 311a.

[0120] As Figure 11 and Figure 13As shown, a first wind wheel placement cavity 311a and a second wind wheel placement cavity 312a are provided in the air duct component 30a. The second wind wheel placement cavity 312a is located above the first wind wheel placement cavity 310a

[0121] It should be noted that the air inlet 110a can be one. The indoor air enters the heat exchange air duct 120a from the air inlet 110a, and the air flow exchanges heat through the heat exchanger 20a in the heat exchange air duct 120a. After heat exchange, the air flow is divided into two streams. One stream of air flows into the upper second wind wheel placement cavity 312a, and after being accelerated by the second wind wheel 420a, it is blown out from the second air outlet 132a; the other stream of air flows into the lower first wind wheel placement cavity 311a, and after being accelerated by the first wind wheel 410a, it is blown out from the first air outlet 131a

[0122] The air inlet 110a can also be two. A partition can be provided in the housing 10a to isolate the heat exchange air duct 120a into two parts. One part of the heat exchange air duct 120a communicates with one air inlet 110a and the first wind wheel placement cavity 311a, and the other part of the heat exchange air duct 120a communicates with the other air inlet 110a and the second wind wheel placement cavity 312a. Thus, the indoor air can flow into one part of the heat exchange air duct 120a from one air inlet 110a, exchange heat through the heat exchanger 20a and then flow into the second wind wheel placement cavity 312a, and finally be blown out from the second air outlet 132a after being accelerated by the second wind wheel 420a. The indoor air can also enter the other part of the heat exchange air duct 120a from the other air inlet 110a, exchange heat through the heat exchanger 20a and then flow into the first wind wheel placement cavity 311a, and finally be blown out from the first air outlet 131a after being accelerated by the first wind wheel 410a

[0123] Since there are mutually isolated air flow channels between the first wind wheel 410a and the second wind wheel 420a, interference between the air flows in the two air flow channels can be avoided. Moreover, the first wind wheel 410a and the second wind wheel 420a can be controlled separately, thereby improving the diversity and comfort of the air supply of the air conditioner 100a

[0124] It should be noted that compared with the first wind wheel 410a, the pressure of the second wind wheel 420a is greater. Under the action of the second wind wheel 420a, the air flow blown out from the second air outlet 132a can be directed to a relatively far distance to achieve long-distance air supply. The first wind wheel 410a can blow out the air flow in the first wind wheel placement cavity 312 evenly and stably from the first air outlet 131a to achieve short-distance comfortable air supply. Moreover, the air flow blown out from the second air outlet 132a can direct the air flow blown out from the first air outlet 131a to a relatively far position, which is beneficial to improving the cooling or heating efficiency of the air conditioner 100a, and also realizes the diversity and comfort of the air supply of the air conditioner 100a

[0125] In some embodiments of the present invention, as Figure 14 shown, there may be two second wind wheel placement cavities 312a, which are distributed on the upper and lower sides of the first wind wheel placement cavity 311a. That is to say, a second wind wheel 420a can be provided on each of the upper and lower sides of the first wind wheel 410a. As Figure 14 shown, the indoor air enters the heat exchange air duct 120a from the air inlet 110a, and after heat exchange by the heat exchanger 20a, it is divided into three airflows. One of the upper airflows flows into the upper second wind wheel placement cavity 312a, and after being pressurized by the second wind wheel 420a, it is blown out from the second air outlet 132a; one of the middle airflows flows into the middle first wind wheel placement cavity 311a, and after being pressurized by the first wind wheel 410a, it is blown out from the first air outlet 131a; one of the lower airflows flows into the lower second wind wheel placement cavity 312a, and after being pressurized by the second wind wheel 420a, it is blown out from the second air outlet 132a. Thus, the diversity of the air supply of the air conditioner 100a can be further improved, so that the control and adjustment can be carried out accordingly according to the air supply requirements in different working modes of the air conditioner 100a.

[0126] According to some embodiments of the present invention, as Figure 11 shown, the first wind wheel 410a and the second wind wheel 420a can be coaxially arranged, the motor assembly 50a can include a dual-axis motor, and the first wind wheel 410a and the second wind wheel 420a are respectively connected to the two output shafts of the dual-axis motor. That is to say, the central axis of the first wind wheel 410a and the central axis of the second wind wheel 420a can be located on the same straight line, and the first wind wheel 410a and the second wind wheel 420a share a dual-axis motor respectively. Thus, it is convenient for the layout and assembly of the first wind wheel 410a and the second wind wheel 420a, which is beneficial to making the structure of the air conditioner 100a compact and reasonable. Moreover, the first wind wheel 410a and the second wind wheel 420a can share a dual-axis motor, which reduces the production cost of the air conditioner 100a and is convenient for the control and adjustment of the air conditioner 100a.

[0127] According to some embodiments of the present invention, the minimum distance between the first wind wheel 410a and the second wind wheel 420a in the axial direction is L, satisfying: L≥100mm. As Figure 11 shown, the first wind wheel 410a and the second wind wheel 420a can be coaxially arranged, and the minimum axial distance between the first wind wheel 410a and the second wind wheel 420a is not less than 100mm. Thus, it is convenient for the layout and assembly of the dual-axis motor between the first wind wheel 410a and the second wind wheel 420a, which is beneficial to improving the assembly efficiency of the air conditioner 100a.

[0128] It should be noted that the central axes of the rotating shafts of the first wind wheel 410a and the second wind wheel 420a may not be on the same straight line either. For example, in some embodiments of the present invention, the motor assembly 50a may include a first drive motor and a second drive motor. The first wind wheel 410a is driven to rotate by the first drive motor, and the second wind wheel 420a is driven to rotate by the second drive motor. Thus, the layout and assembly of the first wind wheel 410a and the second wind wheel 420a can be made more flexible and convenient. Moreover, the first wind wheel 410a and the second wind wheel 420a can be independently controlled, which is beneficial to improving the diversity of the air conditioner 100a.

[0129] As Figure 14 shown, in the air conditioner 100a, there is one first wind wheel 410a and two second wind wheels 420a. The two second wind wheels 420a are respectively arranged at the upper and lower ends of the first wind wheel 410a. Among them, the first wind wheel 410a and the two second wind wheels 420a can be respectively provided with corresponding motors for driving. The first wind wheel 410a can also share a coaxial motor with one of the second wind wheels 420a. For example, the central axes of the rotating shafts of the first wind wheel 410a and the second wind wheel 420a located above can be on the same straight line, and the first wind wheel 410a and the second wind wheel 420a located above share a coaxial motor. The second wind wheel 420a located below is provided with a single drive motor separately.

[0130] Of course, it can also be that the central axes of the rotating shafts of the first wind wheel 410a and the second wind wheel 420a located below are on the same straight line, the first wind wheel 410a and the second wind wheel 420a located below share a coaxial motor, and the second wind wheel 420a located above is provided with a single drive motor separately. Thus, the layout of the internal structure of the air conditioner 100a can be adjusted according to actual design requirements, which is beneficial to improving the diversity of the design of the air conditioner 100a.

[0131] According to some embodiments of the present invention, the first air outlet 131a is provided with a first inner air guiding strip and a rotatable first outer air guiding plate, the second air outlet 132a is provided with a second inner air guiding strip and a rotatable second outer air guiding plate, and the rotation axes of the first outer air guiding plate and the second outer air guiding plate are vertically arranged. As Figure 11 and Figure 13 shown, the air outlets include the second air outlet 132a and the first air outlet 131a which are arranged at intervals up and down. The second air outlet 132a can be correspondingly provided with a second outer air guiding plate extending in the horizontal direction, so that the second air outlet 132a can achieve the effect of swinging up and down for air supply. The first air outlet 131a can be correspondingly provided with a first outer air guiding plate extending in the vertical direction, so that the first air outlet 131a has the effect of swinging left and right for air supply. Thus, the diversity and comfort of the air supply of the air conditioner 100a can be further improved.

[0132] As Figure 14 shown, the air outlet includes second air outlets 132a, first air outlets 131a, and second air outlets 132a arranged in the up-down direction in sequence. The first air outlets 131a may be provided with first outer air guide plates extending in the vertical direction, so as to achieve the effect of the first air outlets 131a swinging left and right to supply air. The second air outlets 132a on the upper and lower sides may be provided with second outer air guide plates extending in the horizontal direction, so as to enable the second air outlets 132a on the upper and lower sides to have the effect of swinging up and down to supply air, thereby improving the diversity of the air supply of the air conditioner 100a.

[0133] In some embodiments of the present invention, the area of the first air outlets 131a is S1, and the area of the second air outlets 132a is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%. As Figure 11 and Figure 13 shown, the area of the first air outlets 131a corresponding to the first air wheel 410a is S1, and the area of the second air outlets 132a corresponding to the second air wheel 420a is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%.

[0134] It should be noted that the area of the second air outlets 132a should not be set too large, so as not to affect the air outlet speed and air supply distance of the second air outlets 132a. The area of the second air outlets 132a should not be set too small, so as not to affect the air supply volume of the second air outlets 132a. Through experimental verification, when the area S2 of the second air outlets 132a and the area S1 of the first air outlets 131a satisfy: 10% ≤ S2 / (S1 + S2) ≤ 50%, the air conditioner 100a can have a better air supply distance and air supply volume, improving the working performance of the air conditioner 100a.

[0135] In some embodiments of the invention, as Figure 15 shown, a pressure regulating member 70a may be provided in the second air wheel placement cavity 312a. An air outlet passage 710a is defined in the pressure regulating member 70a. The cross-sectional area of the second air outlets 132a is S2, and the cross-sectional area of the outlet end of the air outlet passage 710a is S3, satisfying: S2 ≠ S3. That is to say, the cross-sectional area S2 of the second air outlets 132a and the cross-sectional area S3 of the outlet end of the air outlet passage 710a may satisfy: S2 > S3, or S2 < S3. Thus, a gradually shrinking or gradually expanding air outlet passage 710a can be formed in the second air wheel placement cavity 312a, so that the wind speed in the air outlet passage 710a can be changed, and further the diversity of the air supply of the air conditioner 100a can be improved.

[0136] According to some embodiments of the present invention, as Figure 15As shown, the cross-sectional area of the air outlet passage 710a gradually decreases along the flow direction of the air flow. Thus, when the air flow flows in the air outlet passage 710a, since the cross-sectional area of the air outlet passage 710a gradually decreases, the air flow velocity in the air outlet passage 710a can be gradually increased, which is beneficial to the air supply distance of the second air outlet 132a.

[0137] According to some embodiments of the present invention, the second air outlet 132a is disposed near the top end of the housing 10a. As Figure 11 , Figure 13 and Figure 14 shown, the second air outlet 132a corresponding to the second air wheel 420a can be disposed near the top end of the housing 10a. It should be noted that when the air conditioner 100a operates in the windless operation mode, the second air outlet 132a located at the top end of the housing 10a can lead the air flow upward in a parabolic shape, effectively avoiding the air flow from directly blowing on the user, and improving the air supply comfort and user experience of the air conditioner 100a.

[0138] In some embodiments of the present invention, the first air wheel 410a can be one of a centrifugal air wheel, a cross-flow air wheel, and an axial-flow air wheel, and the second air wheel 420a can be one of a centrifugal air wheel, a cross-flow air wheel, and an axial-flow air wheel. For example, a plurality of centrifugal air wheels can be provided in the air conditioner 100a, or a plurality of cross-flow air wheels can be provided in the air conditioner 100a, or a plurality of axial-flow air wheels can be provided in the air conditioner 100a, or a centrifugal air wheel and a cross-flow air wheel can be provided in the air conditioner 100a, or a centrifugal air wheel and an axial-flow air wheel can be provided in the air conditioner 100a, or a cross-flow air wheel and an axial-flow air wheel can be provided in the air conditioner 100a, or the air conditioner 100a can be provided with a centrifugal air wheel, a cross-flow air wheel, and an axial-flow air wheel. Thus, the diversity and flexibility of the design of the air conditioner 100a can be improved. Since the centrifugal air wheel, the cross-flow air wheel, and the axial-flow air wheel have different air supply distances and air supply volumes, corresponding air wheel combinations and arrangements can be selected according to the actual air supply requirements during the design and manufacture of the air conditioner 100a.

[0139] For example, one of the first air wheel 410a and the second air wheel 420a can be a centrifugal air wheel, and the other can be a cross-flow air wheel. That is to say, the first air wheel 410a can be a centrifugal air wheel, and the second air wheel 420a can be a cross-flow air wheel; or the first air wheel 410a can be a cross-flow air wheel, and the second air wheel 420a can be a centrifugal air wheel. It should be noted that compared with the cross-flow air wheel, the centrifugal air wheel has a greater pressure and can achieve long-distance air supply, thereby improving the air supply comfort and diversity of the air conditioner 100a.

[0140] In some embodiments of the present invention, the air conditioner 100a can be a split floor-standing air conditioner, or a split wall-mounted air conditioner, or a ceiling cassette, or a window air conditioner, or a mobile air conditioner. AsFigures 10 - 15 As shown, the air conditioner 100a can be a floor-standing air conditioner 100a. Inside the air conditioner 100a, a second air wheel 420a and a first air wheel 410a are arranged at intervals in the vertical direction, and a corresponding second air outlet 132a and a first air outlet 131a are arranged on the front side of the housing 10a. Thus, the floor-standing air conditioner 100a can have diverse air supply, improving the air supply comfort and user experience of the floor-standing air conditioner 100a. It can be understood that when the air conditioner 100a is other types of air conditioners, by arranging a first air wheel placement cavity 311a and a second air wheel placement cavity 312a inside the air conditioner 100a, arranging the first air wheel 410a in the first air wheel placement cavity 311a, and arranging the second air wheel 420a in the second air wheel placement cavity 312a, the air conditioner 100a can have diverse air supply, improving the working performance of the air conditioner 100a.

[0141] The following refers to Figures 10 - 15 Two specific embodiments are used to describe in detail the air conditioner 100a according to the second embodiment of the present invention. It is worth understanding that the following description is only an exemplary description and not a specific limitation of the present invention.

[0142] Embodiment 1:

[0143] As Figures 10 - 13 shown, the air conditioner 100a is a floor-standing air conditioner 100a, and the air conditioner 100a includes: a housing 10a, a heat exchanger 20a, a duct component 30a, an air wheel assembly, and a motor assembly 50a.

[0144] Among them, as Figure 11 shown, an air inlet 110a is provided on the rear wall of the housing 10a, a heat exchange duct 120a communicating with the air inlet 110a is provided inside the housing 10a, and the heat exchanger 20a is arranged in the heat exchange duct 120a.

[0145] The housing 10a has a front panel 101a, the front panel 101a has a first air outlet 131a and a second air outlet 132a, and there is an interval between the first air outlet 131a and the second air outlet 132a of the front panel 101a, and a display panel can be provided on this interval. Thus, the structure of the air conditioner 100a can be made more compact and reasonable.

[0146] The air duct component 30a is disposed within the housing 10a, and the air duct component 30a defines an air flow passage. A first impeller placement cavity 311a and a second impeller placement cavity 312a are provided within the air duct component 30a, and the first impeller placement cavity 311a and the second impeller placement cavity 312a communicate with the heat exchange air duct 120a respectively. The second impeller placement cavity 312a is located above the first impeller placement cavity 311a. A cross-flow impeller is provided within the first impeller placement cavity 311a, and a centrifugal impeller is provided within the second impeller placement cavity 312a, and the centrifugal impeller is located above the heat exchanger 20a. The central axis of the centrifugal impeller and the central axis of the cross-flow impeller are located on the same straight line, and the centrifugal impeller and the cross-flow impeller are respectively connected to two output shafts of a dual-axis motor. The minimum distance between the centrifugal impeller and the cross-flow impeller is L, satisfying: L≥100mm.

[0147] The second outer air deflector at the second air outlet 132a extends in the horizontal direction to achieve an air supply effect of swinging up and down at the second air outlet 132a. The first outer air deflector of the first air outlet 131a extends in the vertical direction to achieve an air supply effect of swinging left and right at the first air outlet 131a. The area of the first air outlet 131a is S1, and the area of the second air outlet 132a is S2, satisfying: S2 / S1 = 2 / 5.

[0148] It should be noted that in the related art, when the air conditioner operates in the cooling mode, since the cold air flow blown out from the air outlet sinks and the air supply distance decreases, the cooling speed at a location far from the air conditioner decreases. Moreover, the temperature difference between the far and near distances indoors is large, affecting the user experience of the air conditioner.

[0149] When the air conditioner is turned on to the cooling draft-free mode, in order to make the air feeling soft and comfortable, the air flow speed drops sharply and the air supply distance is small. This causes the temperature to be uneven between the far and near distances of the air conditioner, further affecting the comfort experience of the air conditioner.

[0150] When the air conditioner operates in the heating mode, the hot air flow blown out from the air outlet quickly floats upward under the action of air pressure and it is difficult to deliver the hot air flow to the lower position of the feet, affecting the comfort of the air conditioner in the heating mode.

[0151] However, for the air conditioner 100a according to the present invention, when the air conditioner 100a is in the cooling mode, the centrifugal impeller within the upper second impeller placement cavity 312a can pressurize part of the cold air flow and send it to a farther distance. Moreover, the cold air flow blown out from the second air outlet 132a can guide the cold air flow blown out from the first air outlet 131a to blow towards the distance, so that the sinking speed of the cold air flow blown out from the air outlet can be slowed down, and thus the temperature within the room can be made more uniform.

[0152] When the air conditioner 100a operates in the direct-cooling and windless feeling mode, the air flow at the upper second air outlet 132a can be sent in a parabolic shape, so that the air flow is transported to a farther distance, thereby making the temperature field at different positions in the room more uniform and compensating for the defect of insufficient long-distance cold quantity transportation in the micro-hole windless feeling.

[0153] Embodiment 2:

[0154] As Figure 15 shown, different from Embodiment 1, in this embodiment, two second impeller placement cavities 312a are provided in the air conditioner 100a, and the two second impeller placement cavities 312a are spaced apart and arranged at the upper and lower ends of the first impeller placement cavity 311a. The central axes of the rotating shafts of the cross-flow impeller and one of the centrifugal impellers are located on the same straight line, and the cross-flow impeller and the centrifugal impeller share a coaxial motor. Another centrifugal impeller is separately provided with a motor for driving. The upper centrifugal impeller is located above the heat exchanger 20a, and the lower centrifugal impeller is located below the heat exchanger 20a. Thus, by providing two centrifugal impellers and one cross-flow impeller, the diversity and comfort of the air supply of the air conditioner 100a can be improved.

[0155] Next, refer to Figures 16 - 23 to describe the air conditioner 100b according to the third embodiment of the present invention.

[0156] As Figure 16 and Figure 17 shown, the air conditioner 100b according to the embodiment of the present invention includes: a housing 10b, a heat exchanger 20b, a duct component 30b, an adjustment component, a wind wheel component, and a motor component 50b.

[0157] Specifically, as Figure 17 shown, an air inlet 110b and an air outlet are provided on the housing 10b, and a heat exchange duct 130b communicating with the air inlet 110b is provided inside the housing 10b, and the heat exchanger 20b is arranged in the heat exchange duct 130b. Thus, air can enter the heat exchange duct 130b from the air inlet 110b and exchange heat through the heat exchanger 20b.

[0158] The duct component 30b is arranged inside the housing 10b, and the duct component 30b can define an air flow passage so that the air flow can flow along the air flow passage.

[0159] A first impeller placement cavity 310b and a second impeller placement cavity 320b are provided inside the duct component 30b. The first impeller placement cavity 310b communicates with the heat exchange duct 130b, and the second impeller placement cavity 320b communicates with the first impeller placement cavity 310b.

[0160] Both the first impeller placement cavity 310b and the second impeller placement cavity 320b communicate with the air outlet. As Figure 17As shown, the housing 10b may be provided with a first air outlet 121b communicating with the first wind wheel placement cavity 310b and a second air outlet 122b communicating with the second wind wheel placement cavity 320b.

[0161] It should be noted that the air flow can enter the heat exchange air duct 130b from the air inlet 110b. After heat exchange, the air flow in the heat exchange air duct 130b can flow into the first wind wheel placement cavity 310b. The air flow in the first wind wheel placement cavity 310b can directly flow out of the air conditioner 100b from the first air outlet 121b. The air flow in the first wind wheel placement cavity 310b can also enter the second wind wheel placement cavity 320b from the first wind wheel placement cavity 310b and flow out of the air conditioner 100b from the second air outlet 122b.

[0162] The wind wheel assembly includes a first wind wheel 410b and a second wind wheel 420b. The first wind wheel 410b is arranged in the first wind wheel placement cavity 310b, and the second wind wheel 420b is arranged in the second wind wheel placement cavity 320b. The first wind wheel 410b and the second wind wheel 420b are driven to rotate by the motor assembly 50b. It should be noted that compared with the first wind wheel 410b, the second wind wheel 420b has a greater pressure, which can improve the air supply speed and air supply distance.

[0163] Part of the air flow in the first wind wheel placement cavity 310b is pressurized by the first wind wheel 410b and then blown out from the first air outlet 121b closely and evenly. Another part of the air flow in the first wind wheel placement cavity 310b can flow into the second wind wheel placement cavity 320b and, after being pressurized again by the second wind wheel 420b, can supply air over a long distance at a high speed. Thus, the diversity of air supply of the air conditioner 100b can be improved, enabling the air conditioner 100b to make corresponding adjustments and controls according to the air supply requirements of different working modes.

[0164] For the air conditioner 100b according to the embodiment of the present invention, by arranging the first wind wheel 410b in the first wind wheel placement cavity 310b and the second wind wheel 420b in the second wind wheel placement cavity 320b, the air conditioner 100b can have different air supply modes, improving the diversity and comfort of the air supply of the air conditioner 100b. Moreover, the air flow in the first wind wheel placement cavity 310b can flow into the second wind wheel placement cavity 320b and, after being pressurized again by the second wind wheel 420b, realizes long-distance air supply, improving the performance of the air conditioner.

[0165] According to some embodiments of the present invention, the second wind wheel placement cavity 320b communicates with the first wind wheel placement cavity 310b through a communication air duct 330b. The air conditioner 100b may further include: an adjustment assembly, which cooperates with the communication air duct 330b to adjust the air volume of the communication air duct 330b. Thus, the air volume of the communication air duct 330b can be adjusted by the adjustment assembly, so that the air conditioner 100b has different air supply modes. For example, the adjustment assembly can conduct or cut off the communication air duct 330b, and the adjustment assembly can also adjust the size of the air volume of the communication air duct 330b.

[0166] It should be noted that the number and installation position of the adjustment assembly described herein are not limited. That is to say, the adjustment assembly can be one or more. The adjustment assembly can be arranged inside the communication air duct 330b or outside the communication air duct 330b (such as at the inlet or outlet of the communication air duct 330b), as long as the air volume adjustment requirements are met.

[0167] In addition, the form of the adjustment assembly is not limited either. For example, in some embodiments, the adjustment assembly may include a door body and a driver for driving the door body to move. Among them, the door body can be a transverse sliding door that moves translationally perpendicular to the axis of the communication air duct 330b, an axial sliding door that moves translationally parallel to the axis of the communication air duct 330b, or a rotating door that rotates around the radial line of the communication air duct 330b, etc., which will not be elaborated here.

[0168] In some embodiments of the present invention, at least one of the upper, lower, left, and right sides of the first wind wheel placement cavity 310b is provided with a second wind wheel placement cavity 320b. That is to say, a second wind wheel placement cavity 320b can be provided at one of the upper, lower, left, and right sides of the first wind wheel placement cavity 310b; a second wind wheel placement cavity 320b can also be provided at two of the upper, lower, left, and right sides of the first wind wheel placement cavity 310b; a second wind wheel placement cavity 320b can also be provided at three of the upper, lower, left, and right sides of the first wind wheel placement cavity 310b; of course, second wind wheel placement cavities 320b can also be provided on all of the upper, lower, left, and right sides of the first wind wheel placement cavity 310b. Thus, the flexibility and diversity of the layout of the first wind wheel placement cavity 310b and the second wind wheel placement cavity 320b are improved, so that the number and position of the first wind wheel placement cavity 310b and the second wind wheel placement cavity 320b can be set according to the actual air supply requirements of the air conditioner 100b.

[0169] According to some embodiments of the present invention, such as Figure 17 , Figure 19 , Figure 20 and Figure 22As shown, the second wind wheel placement cavity 320b can be one and is provided above or below the first wind wheel placement cavity 310b. That is to say, one second wind wheel placement cavity 320b can be provided above the first wind wheel placement cavity 310b, or one second wind wheel placement cavity 320b can be provided below the first wind wheel placement cavity 310b.

[0170] As Figure 17 , Figure 19 , Figure 20 and Figure 22 As shown, the first wind wheel placement cavity 310b and the second wind wheel placement cavity 320b are provided in the air duct component 30b. The second wind wheel placement cavity 320b is located above the first wind wheel placement cavity 310b.

[0171] It should be noted that the indoor air can enter the heat exchange air duct 130b from the air inlet 110b, and the air flow exchanges heat through the heat exchanger 20b in the heat exchange air duct 130b. The air flow after heat exchange flows into the lower first wind wheel placement cavity 310b, and the air flow in the first wind wheel placement cavity 310b can be directly blown out from the first air outlet 121b after being pressurized by the first wind wheel 410b. The air flow in the first wind wheel placement cavity 310b can also enter the second wind wheel placement cavity 320b through the connecting air duct 330b, and the air flow in the second wind wheel placement cavity 320b is blown out from the second air outlet 122b after being pressurized by the second wind wheel 420b.

[0172] It can be understood that, compared with the first wind wheel 410b, the second wind wheel 420b has a greater pressure. Under the action of the second wind wheel 420b, the air flow blown out from the second air outlet 122b can be directed to a relatively far place to achieve long-distance air supply. The first wind wheel 410b can evenly and stably blow out the air flow in the first wind wheel placement cavity 310b from the first air outlet 121b to achieve short-distance comfortable air supply. In addition, the air flow blown out from the second air outlet 122b can direct the air flow blown out from the first air outlet 121b to a relatively far position, which is beneficial to improving the refrigeration or heating efficiency of the air conditioner 100b, and moreover, realizes the diversity and comfort of the air supply of the air conditioner 100b.

[0173] In some embodiments of the present invention, as Figure 21 shown, the second wind wheel placement cavity 320b can be two and are distributed on the upper and lower sides of the first wind wheel placement cavity 310b. That is to say, one second wind wheel 420b can be provided on each of the upper and lower sides of the first wind wheel 410b.

[0174] It should be noted that the indoor air can enter the heat exchange air duct 130b from the air inlet 110b. After the air flow exchanges heat through the heat exchanger 20b, it flows into the first wind wheel placement cavity 310b. The air flow in the first wind wheel placement cavity 310b can be directly blown out from the first air outlet 121b after being pressurized by the first wind wheel 410b. The air flow in the first wind wheel placement cavity 310b can also flow into the second wind wheel placement cavities 320b on the upper and lower sides through the connecting air duct 330b, and be blown out from the corresponding second air outlets 122b after being pressurized by the second wind wheels 420b in the second wind wheel placement cavities 320b. Thus, the diversity of the air supply of the air conditioner 100b can be further improved, and accordingly, it can be controlled and adjusted according to the air supply requirements in different working modes of the air conditioner 100b.

[0175] The two second wind wheels 420b and the first wind wheel 410b can supply air simultaneously. The first wind wheel 410b can also supply air simultaneously with one of the two second wind wheels 420b, and the other second wind wheel 420b does not operate. The two second wind wheels 420b can also both not operate, and only the second wind wheel 420b operates to supply air. When the lower second wind wheel 420b operates, the air flow below can be transported to a relatively long distance. Thus, in the heating mode, the air flow can be transported to the feet by operating the lower second wind wheel 420b to achieve carpet-like heating, with good comfort.

[0176] According to some embodiments of the present invention, as Figure 17 shown, the first wind wheel 410b and the second wind wheel 420b can be coaxially arranged. The motor assembly 50b can include a double-shaft motor, and the first wind wheel 410b and the second wind wheel 420b are respectively connected to the two output shafts of the double-shaft motor. That is to say, the central axis of the first wind wheel 410b and the central axis of the second wind wheel 420b can be located on the same straight line, and the first wind wheel 410b and the second wind wheel 420b share a double-shaft motor respectively. Thus, it is convenient for the layout and assembly of the first wind wheel 410b and the second wind wheel 420b, which is beneficial to making the structure of the air conditioner 100b compact and reasonable. Moreover, the first wind wheel 410b and the second wind wheel 420b can share a double-shaft motor, which reduces the production cost of the air conditioner 100b and is also convenient for the control and adjustment of the air conditioner 100b.

[0177] According to some embodiments of the present invention, the minimum distance between the first wind wheel 410b and the second wind wheel 420b in the axial direction is L, satisfying: L≥100mm. As Figure 17 shown, the first wind wheel 410b and the second wind wheel 420b can be coaxially arranged, and the minimum axial distance between the first wind wheel 410b and the second wind wheel 420b is not less than 100mm. Thus, it is convenient for the layout and assembly of the double-shaft motor between the first wind wheel 410b and the second wind wheel 420b, which is beneficial to improving the assembly efficiency of the air conditioner 100b.

[0178] It should be noted that the central axes of the rotating shafts of the first wind wheel 410b and the second wind wheel 420b may not be on the same straight line. For example, in some embodiments of the present invention, the motor assembly 50b may include a first driving motor and a second driving motor. The first wind wheel 410b is driven to rotate by the first driving motor, and the second wind wheel 420b is driven to rotate by the second driving motor. Thus, the layout and assembly of the first wind wheel 410b and the second wind wheel 420b can be made more flexible and convenient. Moreover, the first wind wheel 410b and the second wind wheel 420b can be independently controlled, which is beneficial to improving the diversity of the air conditioner 100b.

[0179] In some embodiments of the present invention, there may be multiple air outlets. An inner air guide strip and a rotatable outer air guide plate may be correspondingly provided at each air outlet, and the rotation axes of the outer air guide plates at two adjacent air outlets are vertically arranged. As Figure 17 、 Figure 19 、 Figure 20 and Figure 22 shown, the air outlets include a second air outlet 122b and a first air outlet 121b which are arranged at intervals in the vertical direction. A horizontally extending outer air guide plate may be correspondingly provided at the second air outlet 122b, so that the second air outlet 122b can achieve an up-and-down swinging air supply effect. A vertically extending outer air guide plate may be correspondingly provided at the first air outlet 121b, so that the first air outlet 121b can have a left-and-right swinging air supply effect. Thus, the diversity and comfort of the air supply of the air conditioner 100b can be further improved.

[0180] In some other embodiments of the present invention, as Figure 21 shown, the air outlets may include a second air outlet 122b, a first air outlet 121b, and a second air outlet 122b which are arranged in sequence in the up-and-down direction. A vertically extending outer air guide plate may be provided at the first air outlet 121b, so that the first air outlet 121b can achieve a left-and-right swinging air supply effect. Horizontally extending outer air guide plates may be provided at the second air outlets 122b on the upper and lower sides, so that the second air outlets 122b on the upper and lower sides can have an up-and-down swinging air supply effect, thereby improving the diversity of the air supply of the air conditioner 100b.

[0181] According to some embodiments of the present invention, the area of the first air outlet 151 is S1, and the area of the second air outlet 152 is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%. As Figure 17 、 Figures 19 - 22 shown, the area of the first air outlet 121b corresponding to the first wind wheel 410b is S1, and the area of the second air outlet 122b corresponding to the second wind wheel 420b is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%.

[0182] It should be noted that the area of the second air outlet 122b should not be set too large, so as not to affect the air outlet speed and air supply distance of the second air outlet 122b. The area of the second air outlet 122b should not be set too small, so as not to affect the air supply volume of the second air outlet 122b. Through experimental verification, when the area S1 of the first air outlet 121b and the area S2 of the second air outlet 122b satisfy: 10% ≤ S2 / (S1 + S2) ≤ 50%, the air conditioner 100b can have a better air supply distance and air supply volume, improving the working performance of the air conditioner 100b.

[0183] In some embodiments of the invention, as Figure 23 shown, a pressure regulating member 70b may be provided in the second impeller placement cavity 320b. An air outlet passage 710b is defined in the pressure regulating member 70b. The cross-sectional area of the second air outlet 122b is S2, and the cross-sectional area of the outlet end of the air outlet passage 710b is S3, satisfying: S2 ≠ S3. That is to say, the cross-sectional area S2 of the second air outlet 122b and the cross-sectional area S3 of the outlet end of the air outlet passage 710b may satisfy: S2 > S3, or S2 < S3. Thus, a tapered or divergent air outlet passage 710b can be formed in the second impeller placement cavity 320b, so that the air speed in the air outlet passage 710b can be changed, and further the diversity of the air supply of the air conditioner 100b can be improved.

[0184] According to some embodiments of the present invention, as Figure 23 shown, the cross-sectional area of the air outlet passage 710b gradually decreases along the flow direction of the air flow. Thus, when the air flow flows in the air outlet passage 710b, since the cross-sectional area of the air outlet passage 710b gradually decreases, the air flow velocity in the air outlet passage 710b can be gradually increased, which is beneficial to the air supply distance of the second air outlet 122b.

[0185] In some embodiments of the present invention, the second air outlet 122b may be arranged close to the top end of the housing 10b. As Figure 17 、 Figure 19 、 Figure 20 and Figure 22 shown, the second air outlet 122b corresponding to the second impeller 420b may be arranged close to the top end of the housing 10b. It should be noted that when the air conditioner 100b operates in the windless operation mode, the second air outlet 122b located at the top end of the housing 10b can lead the air flow upward in a parabolic shape, effectively avoiding the air flow from directly blowing on the user, and improving the air supply comfort and user experience of the air conditioner 100b.

[0186] According to some embodiments of the present invention, the air conditioner 100b may be a split floor-mounted air conditioner, or a split wall-mounted air conditioner, or a ceiling cassette, or a window air conditioner or a portable air conditioner. As Figures 16 - 22As shown, the air conditioner 100b can be a floor-standing air conditioner 100b. Inside the air conditioner 100b, a first impeller 410b and a second impeller 420b are arranged at intervals in the vertical direction, and a corresponding first air outlet 121b and a second air outlet 122b are arranged on the front side of the housing 10b. Thus, the floor-standing air conditioner 100b can have diverse air supply, improving the air supply comfort and user experience of the floor-standing air conditioner 100b. Similarly, when the air conditioner 100b is other types of air conditioners, by arranging a first impeller placement cavity 310b and a second impeller placement cavity 320b inside the air conditioner 100b, the air conditioner 100b can have diverse air supply, improving the working performance of the air conditioner 100b.

[0187] In some embodiments of the present invention, the first impeller 410b can be one of a centrifugal impeller, a cross-flow impeller, and an axial-flow impeller, and the second impeller 420b can be one of a centrifugal impeller, a cross-flow impeller, and an axial-flow impeller. For example, multiple centrifugal impellers can be arranged inside the air conditioner 100b, or multiple cross-flow impellers can be arranged inside the air conditioner 100b, or multiple axial-flow impellers can be arranged inside the air conditioner 100b, or a centrifugal impeller and a cross-flow impeller can be arranged inside the air conditioner 100b, or a centrifugal impeller and an axial-flow impeller can be arranged inside the air conditioner 100b, or a cross-flow impeller and an axial-flow impeller can be arranged inside the air conditioner 100b. Thus, the diversity and flexibility of the design of the air conditioner 100b can be improved. Since the centrifugal impeller, the cross-flow impeller, and the axial-flow impeller have different air supply distances and air supply volumes, during the design and manufacturing process of the air conditioner 100b, the corresponding impeller combination and arrangement can be selected according to the actual air supply requirements.

[0188] For example, a cross-flow impeller can be arranged in the first impeller placement cavity 310b, and a centrifugal impeller can be placed in the second impeller placement cavity 320b. It can be understood that, compared with the cross-flow impeller, the centrifugal impeller can generate a greater pressure on the air flow, causing the air flow to blow to a farther distance. Thus, the air flow flowing from the first impeller placement cavity 310b into the second impeller placement cavity 320b through the connecting air duct 330b can be accelerated by the centrifugal impeller to achieve long-distance air supply.

[0189] Below, Figures 16 - 22 The air conditioner 100b according to the third embodiment of the present invention will be described in detail with three specific embodiments. It should be understood that the following description is only an exemplary description and not a specific limitation of the present invention.

[0190] Embodiment 1:

[0191] As Figures 16 - 19 shown, the air conditioner 100b is a floor-standing air conditioner 100b, and the air conditioner 100b includes: a housing 10b, a heat exchanger 20b, an air duct component 30b, an adjustment component, an impeller assembly, and a motor assembly 50b.

[0192] Among them, as Figure 17 shown, an air inlet 110b and an air outlet are provided on the rear wall of the housing 10b. A heat exchange air duct 130b communicating with the air inlet 110b is provided inside the housing 10b, and a heat exchanger 20b is arranged in the heat exchange air duct 130b.

[0193] An air duct component 30b is arranged inside the housing 10b, and the air duct component 30b defines an air flow passage. A first impeller placement cavity 310b and a second impeller placement cavity 320b are provided inside the air duct component 30b, and the second impeller placement cavity 320b is located above the first impeller placement cavity 310b. A cross-flow impeller is provided in the first impeller placement cavity 310b, and a centrifugal impeller is provided in the second impeller placement cavity 320b. The central axis of the centrifugal impeller and the central axis of the cross-flow impeller are on the same straight line, and the centrifugal impeller and the cross-flow impeller are respectively connected to two output shafts of a dual-axis motor. The minimum distance between the centrifugal impeller and the cross-flow impeller is L, and it satisfies: L≥150mm.

[0194] The first impeller placement cavity 310b communicates with the heat exchange air duct 130b, the second impeller placement cavity 320b is arranged separately from the heat exchange air duct 130b, and a connecting air duct 330b is provided between the second impeller placement cavity 320b and the first impeller placement cavity 310b. The connecting air duct 330b is provided with an adjusting component for adjusting the air volume.

[0195] A first air outlet 121b communicating with the first impeller placement cavity 310b and a second air outlet 122b communicating with the second impeller placement cavity 320b are provided on the front wall of the housing 10b. A plurality of rotatable air deflector plates are correspondingly arranged at each air outlet, and the rotation axes of the outer air deflector plates at two adjacent air outlets are vertically arranged. Among them, the outer air deflector plate at the second air outlet 122b extends in the horizontal direction to achieve an air supply effect of swinging up and down at the second air outlet 122b. The outer air deflector plate at the first air outlet 121b extends in the vertical direction to achieve an air supply effect of swinging left and right at the first air outlet 121b. The area of the second air outlet 122b is S1, and the area of the first air outlet 121b is S2, and it satisfies: S2 / S1 = 2 / 5.

[0196] It should be noted that in the related art, when the air conditioner operates in the cooling mode, since the cold air flow blown out from the air outlet sinks and the air supply distance decreases, the cooling speed at a place far from the air conditioner decreases. Moreover, the temperature difference between the far and near in the room is large, which affects the user experience of the air conditioner.

[0197] When the air conditioner is turned on to the cooling no-wind-sensation mode, in order to make the wind sensation soft and comfortable, the air flow speed drops sharply and the air supply distance is small. This makes the temperature uneven between the far and near of the air conditioner, further affecting the comfort experience of the air conditioner.

[0198] When the air conditioner operates in the heating mode, the hot air flow blown out from the air outlet quickly floats upward under the action of air pressure, making it difficult to transport the hot air flow to the lower position of the feet, which affects the comfort of the air conditioner in the heating mode.

[0199] For the air conditioner 100b according to the present invention, when the air conditioner 100b is in the cooling mode, the centrifugal fan in the upper second fan placement cavity 320b can pressurize part of the cold air flow in the first fan placement cavity 310b and send it to a farther distance. Moreover, the cold air flow blown out from the second air outlet 122b can guide the cold air flow blown out from the first air outlet 121b to blow far away, so that the settlement speed of the cold air flow blown out from the air outlet can be slowed down, and thus the temperature in the room can be made more uniform.

[0200] When the air conditioner 100b operates in the direct cooling and draft-free mode, the air flow from the upper second air outlet 122b can be sent in a parabolic shape, so that the air flow is transported to a farther distance, making the temperature field at different positions in the room more uniform and compensating for the defect of insufficient long-distance cold quantity transportation in the micro-hole draft-free mode.

[0201] Embodiment Two:

[0202] As Figure 20 shown, different from Embodiment One, in this embodiment, the adjusting component is located on the front side of the housing 10b. When the adjusting component conducts and connects the ventilation duct 330b, under the action of the centrifugal fan, the air flow blown out from the first air outlet 121b can be sucked into the second fan placement cavity 320b again, and after being pressurized by the centrifugal fan, the air flow is transported to a farther distance, thereby improving the cooling and heating efficiency of the air conditioner 100b.

[0203] Embodiment Three:

[0204] As Figure 21 shown, different from Embodiment One, in this embodiment, the ventilation duct 330b can be arranged on both sides in the left-right direction of the cross-flow fan, and the ventilation duct 330b extends in the up-down direction. Under the action of the centrifugal fan, part of the air flow after heat exchange can flow into the second fan placement cavity 320b along the ventilation duct 330b, and after being accelerated by the centrifugal fan, it blows towards the distance.

[0205] Next, refer to Figures 24 - 31 to describe the air conditioner 100c according to the fourth embodiment of the present invention.

[0206] As Figure 24 and Figure 25 shown, for the air conditioner 100c according to the embodiment of the present invention, the air conditioner 100c includes: a housing 10c, a heat exchanger 20c, a duct component 30c, an adjusting component, a fan component, and a motor component 50c.

[0207] Specifically, as Figure 25 shown, an air inlet 110c and an air outlet are provided on the housing 10c. A heat exchange air duct 130c communicating with the air inlet 110c is provided inside the housing 10c, and the heat exchanger 20c is arranged inside the heat exchange air duct 130c. Thus, air can enter the heat exchange air duct 130c from the air inlet 110c and exchange heat through the heat exchanger 20c.

[0208] The air duct component 30c is arranged inside the housing 10c. The air duct component 30c can define an air flow passage, enabling the air flow to flow along the air flow passage.

[0209] A first wind wheel placement cavity 310c and a second wind wheel placement cavity 320c are provided inside the air duct component 30c. The first wind wheel placement cavity 310c communicates with the heat exchange air duct 130c, and the second wind wheel placement cavity 320c communicates with the first wind wheel placement cavity 310c.

[0210] Both the first wind wheel placement cavity 310c and the second wind wheel placement cavity 320c communicate with the air outlet. As Figure 25 shown, a first air outlet 121c communicating with the first wind wheel placement cavity 310c and a second air outlet 122c communicating with the second wind wheel placement cavity 320c can be provided on the housing 10c.

[0211] It should be noted that the air flow can enter the heat exchange air duct 130c from the air inlet 110c. After heat exchange, the air flow in the heat exchange air duct 130c can flow into the first wind wheel placement cavity 310c. The air flow in the first wind wheel placement cavity 310c can directly flow out of the air conditioner 100c from the first air outlet 121c, or the air flow in the first wind wheel placement cavity 310c can also enter the second wind wheel placement cavity 320c from the first wind wheel placement cavity 310c and flow out of the air conditioner 100c from the second air outlet 122c.

[0212] The wind wheel assembly includes a first wind wheel 410c and a second wind wheel 420c. The first wind wheel 410c is arranged inside the first wind wheel placement cavity 310c, and the second wind wheel 420c is arranged inside the second wind wheel placement cavity 320c. The first wind wheel 410c and the second wind wheel 420c are driven to rotate by the motor assembly 50c. It should be noted that compared with the first wind wheel 410c, the second wind wheel 420c has a greater pressure, which can increase the air supply speed and the air supply distance.

[0213] Part of the air flow in the first wind wheel placement cavity 310c is pressurized by the first wind wheel 410c and then blown out from the first air outlet 121c at a short distance and evenly. Another part of the air flow in the first wind wheel placement cavity 310c can flow into the second wind wheel placement cavity 320c, and after being pressurized again by the second wind wheel 420c, it can supply air at a high speed over a long distance. Thus, the diversity of the air supply of the air conditioner 100c can be improved, enabling the air conditioner 100c to make corresponding adjustments and controls according to the air supply requirements of different working modes.

[0214] For the air conditioner 100c according to the embodiment of the present invention, by arranging the first wind wheel 410c in the first wind wheel placement cavity 310c and the second wind wheel 420c in the second wind wheel placement cavity 320c, the air conditioner 100c can have different air supply modes, improving the diversity and comfort of the air supply of the air conditioner 100c. Moreover, the air flow in the first wind wheel placement cavity 310c can flow into the second wind wheel placement cavity 320c, and after being pressurized again by the second wind wheel 420c, it can supply air over a long distance, improving the performance of the air conditioner.

[0215] According to some embodiments of the present invention, the second wind wheel placement cavity 320c is communicated with the first wind wheel placement cavity 310c through a communication air duct 330c. The air conditioner 100c may further include: an adjustment assembly, which cooperates with the communication air duct 330c to adjust the air volume of the communication air duct 330c. Thus, the size of the air volume of the communication air duct 330c can be adjusted through the adjustment assembly, enabling the air conditioner 100c to have different air supply modes. For example, the adjustment assembly can conduct or cut off the communication air duct 330c, and the adjustment assembly can also adjust the size of the air volume of the communication air duct 330c.

[0216] It should be noted that the number and installation position of the adjustment assembly described herein are not limited. That is to say, the adjustment assembly can be one or more, and the adjustment assembly can be arranged inside the communication air duct 330c or outside the communication air duct 330c (such as the entrance, exit, etc. of the communication air duct 330c), as long as the air volume adjustment requirements are met.

[0217] In addition, the form of the adjustment assembly is not limited either. For example, in some embodiments, the adjustment assembly may include a door body and a driver for driving the door body to move. Among them, the door body can be a lateral sliding door that moves translationally perpendicular to the axis of the communication air duct 330c, an axial sliding door that moves translationally parallel to the axis of the communication air duct 330c, or a rotating door that rotates around the radial line of the communication air duct 330c, etc., which will not be elaborated here.

[0218] In some embodiments of the present invention, at least one of the upper, lower, left, and right sides of the first wind wheel placement cavity 310c is provided with a second wind wheel placement cavity 320c. That is to say, a second wind wheel placement cavity 320c can be provided at one of the upper, lower, left, and right sides of the first wind wheel placement cavity 310c; a second wind wheel placement cavity 320c can also be provided at two of the upper, lower, left, and right sides of the first wind wheel placement cavity 310c; a second wind wheel placement cavity 320c can also be provided at three of the upper, lower, left, and right sides of the first wind wheel placement cavity 310c; of course, a second wind wheel placement cavity 320c can also be provided on the upper, lower, left, and right sides of the first wind wheel placement cavity 310c. Thus, the flexibility and diversity of the layout of the first wind wheel placement cavity 310c and the second wind wheel placement cavity 320c are improved, so that the number and positions of the first wind wheel placement cavity 310c and the second wind wheel placement cavity 320c can be set according to the actual air outlet requirements of the air conditioner 100c.

[0219] According to some embodiments of the present invention, as Figure 25 , Figure 27 , Figure 28 and Figure 30 shown, the second wind wheel placement cavity 320c can be one and is provided above or below the first wind wheel placement cavity 310c. That is to say, a second wind wheel placement cavity 320c can be provided above the first wind wheel placement cavity 310c, or a second wind wheel placement cavity 320c can be provided below the first wind wheel placement cavity 310c.

[0220] As Figure 25 , Figure 27 , Figure 28 and Figure 30 shown, the air duct component 30c is provided with a first wind wheel placement cavity 310c and a second wind wheel placement cavity 320c. The second wind wheel placement cavity 320c is located above the first wind wheel placement cavity 310c.

[0221] It should be noted that the indoor air can enter the heat exchange air duct 130c from the air inlet 110c, and the air flow exchanges heat in the heat exchange air duct 130c through the heat exchanger 20c. The air flow after heat exchange flows into the lower first wind wheel placement cavity 310c, and the air flow in the first wind wheel placement cavity 310c can be directly blown out from the first air outlet 121c after being pressurized by the first wind wheel 410c. The air flow in the first wind wheel placement cavity 310c can also enter the second wind wheel placement cavity 320c through the connecting air duct 330c, and the air flow in the second wind wheel placement cavity 320c is blown out from the second air outlet 122c after being pressurized by the second wind wheel 420c.

[0222] It can be understood that the pressure of the second wind wheel 420c is greater than that of the first wind wheel 410c. Under the action of the second wind wheel 420c, the airflow blown out from the second air outlet 122c can be directed to a relatively far distance to achieve long-distance air supply. The first wind wheel 410c can evenly and stably blow out the airflow in the first wind wheel placement cavity 310c from the first air outlet 121c to achieve short-distance comfortable air supply. In addition, the airflow blown out from the second air outlet 122c can direct the airflow blown out from the first air outlet 121c to a relatively far position, which is beneficial to improving the refrigeration or heating efficiency of the air conditioner 100c. Moreover, the diversity and comfort of the air supply of the air conditioner 100c are achieved.

[0223] In some embodiments of the present invention, as Figure 29 shown, there can be two second wind wheel placement cavities 320c, which are distributed on the upper and lower sides of the first wind wheel placement cavity 310c. That is to say, a second wind wheel 420c can be provided on each of the upper and lower sides of the first wind wheel 410c.

[0224] It should be noted that the indoor air can enter the heat exchange air duct 130c from the air inlet 110c. After the airflow exchanges heat through the heat exchanger 20c, it flows into the first wind wheel placement cavity 310c. The airflow in the first wind wheel placement cavity 310c can be directly blown out from the first air outlet 121c after being pressurized by the first wind wheel 410c. The airflow in the first wind wheel placement cavity 310c can also flow into the upper and lower second wind wheel placement cavities 320c through the connecting air duct 330c and be blown out from the corresponding second air outlets 122c after being pressurized by the second wind wheels 420c in the second wind wheel placement cavities 320c. Thus, the diversity of the air supply of the air conditioner 100c can be further improved, and accordingly, it can be controlled and adjusted according to the air supply requirements in different working modes of the air conditioner 100c.

[0225] The two second wind wheels 420c and the first wind wheel 410c can supply air simultaneously. The first wind wheel 410c can also supply air simultaneously with one of the two second wind wheels 420c, and the other second wind wheel 420c does not operate. The two second wind wheels 420c can also both not operate, and only the second wind wheel 420c operates to supply air. When the lower second wind wheel 420c operates, the lower airflow can be transported to a relatively far distance. Thus, in the heating mode, the lower second wind wheel 420c can be operated to transport the airflow to the feet to achieve carpet-like heating, with good comfort.

[0226] According to some embodiments of the present invention, as Figure 25As shown, the first wind wheel 410c and the second wind wheel 420c can be coaxially arranged. The motor assembly 50c can include a dual-axis motor, and the first wind wheel 410c and the second wind wheel 420c are respectively connected to the two output shafts of the dual-axis motor. That is to say, the central axis of the first wind wheel 410c and the central axis of the second wind wheel 420c can be located on the same straight line, and the first wind wheel 410c and the second wind wheel 420c share a dual-axis motor respectively. Thus, it is convenient for the layout and assembly of the first wind wheel 410c and the second wind wheel 420c, which is beneficial to making the structure of the air conditioner 100c more compact and reasonable. Moreover, the first wind wheel 410c and the second wind wheel 420c can share a dual-axis motor, which reduces the production cost of the air conditioner 100c and is also convenient for the control and adjustment of the air conditioner 100c.

[0227] According to some embodiments of the present invention, the minimum distance between the first wind wheel 410c and the second wind wheel 420c in the axial direction is L, satisfying: L≥100mm. As Figure 25 shown, the first wind wheel 410c and the second wind wheel 420c can be coaxially arranged, and the minimum axial distance between the first wind wheel 410c and the second wind wheel 420c is not less than 100mm. Thus, it is convenient for the layout and assembly of the dual-axis motor between the first wind wheel 410c and the second wind wheel 420c, which is beneficial to improving the assembly efficiency of the air conditioner 100c.

[0228] It should be noted that the central axes of the rotating shafts of the first wind wheel 410c and the second wind wheel 420c may not be located on the same straight line either. For example, in some embodiments of the present invention, the motor assembly 50c can include a first driving motor and a second driving motor. The first wind wheel 410c is driven to rotate by the first driving motor, and the second wind wheel 420c is driven to rotate by the second driving motor. Thus, the layout and assembly of the first wind wheel 410c and the second wind wheel 420c can be made more flexible and convenient. Moreover, the first wind wheel 410c and the second wind wheel 420c can be independently controlled, which is beneficial to improving the diversity of the air conditioner 100c.

[0229] In some embodiments of the present invention, there can be multiple air outlets. An inner air guide strip and a rotatable outer air guide plate can be correspondingly arranged at each air outlet, and the rotation axes of the outer air guide plates at two adjacent air outlets are vertically arranged. As Figure 25 、 Figure 27 、 Figure 28 and Figure 30As shown, the air outlet includes a second air outlet 122c and a first air outlet 121c that are spaced apart vertically. The second air outlet 122c can be correspondingly provided with an outer air deflector extending in the horizontal direction, so that the second air outlet 122c can achieve an up-and-down swinging air supply effect. The first air outlet 121c can be correspondingly provided with an outer air deflector extending in the vertical direction, so that the first air outlet 121c has a left-and-right swinging air supply effect. Thus, the diversity and comfort of the air supply of the air conditioner 100c can be further improved.

[0230] In some other embodiments of the present invention, as Figure 29 shown, the air outlet may include a second air outlet 122c, a first air outlet 121c, and a second air outlet 122c that are arranged in sequence in the up-and-down direction. The first air outlet 121c can be provided with an outer air deflector extending in the vertical direction, so that the first air outlet 121c can achieve a left-and-right swinging air supply effect. The second air outlets 122c on the upper and lower sides can be provided with outer air deflectors extending in the horizontal direction, so that the second air outlets 122c on the upper and lower sides have an up-and-down swinging air supply effect, thereby improving the diversity of the air supply of the air conditioner 100c.

[0231] According to some embodiments of the present invention, the area of the first air outlet 151 is S1, and the area of the second air outlet 152 is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%. As Figure 25 、 Figures 27 - 30 shown, the area of the first air outlet 121c corresponding to the first air wheel 410c is S1, and the area of the second air outlet 122c corresponding to the second air wheel 420c is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%.

[0232] It should be noted that the area of the second air outlet 122c should not be set too large, so as not to affect the air outlet speed and air supply distance of the second air outlet 122c. The area of the second air outlet 122c should not be set too small, so as not to affect the air supply volume of the second air outlet 122c. Through experimental verification, when the area S1 of the first air outlet 121c and the area S2 of the second air outlet 122c satisfy: 10% ≤ S2 / (S1 + S2) ≤ 50%, the air conditioner 100c can have a better air supply distance and air supply volume, improving the working performance of the air conditioner 100c.

[0233] In some embodiments of the invention, as Figure 31As shown, a pressure regulating member 70c may be provided in the second wind wheel placement cavity 320c. An air outlet passage 710c is defined within the pressure regulating member 70c. The cross-sectional area of the second air outlet 122c is S2, and the cross-sectional area of the outlet end of the air outlet passage 710c is S3, satisfying: S2 ≠ S3. That is to say, the cross-sectional area S2 of the second air outlet 122c and the cross-sectional area S3 of the outlet end of the air outlet passage 710c may satisfy: S2 > S3, or S2 < S3. Thus, a gradually narrowing or gradually expanding air outlet passage 710c can be formed within the second wind wheel placement cavity 320c, so that the air velocity within the air outlet passage 710c can change, and further, the diversity of the air supply of the air conditioner 100c can be improved.

[0234] According to some embodiments of the present invention, as Figure 31 shown, the cross-sectional area of the air outlet passage 710c gradually decreases along the flow direction of the air flow. Thus, when the air flow flows within the air outlet passage 710c, since the cross-sectional area of the air outlet passage 710 gradually decreases, the air flow velocity within the air outlet passage 710c can gradually increase, which is beneficial to the air supply distance of the second air outlet 122c.

[0235] In some embodiments of the present invention, the second air outlet 122c may be provided near the top end of the housing 10c. As Figure 25 、 Figure 27 、 Figure 28 and Figure 30 shown, the second air outlet 122c corresponding to the second wind wheel 420c may be provided near the top end of the housing 10c. It should be noted that when the air conditioner 100c operates in the draft-free operation mode, the second air outlet 122c located at the top end of the housing 10c can lead the air flow upward in a parabolic manner, effectively avoiding the air flow from directly blowing on the user, and improving the air supply comfort and user experience of the air conditioner 100c.

[0236] According to some embodiments of the present invention, the air conditioner 100c may be a split floor-standing air conditioner, or a split wall-mounted air conditioner, or a ceiling unit, or a window air conditioner or a portable air conditioner. As Figures 24 - 30 shown, the air conditioner 100c may be a cabinet air conditioner 100c. The air conditioner 100c has a first wind wheel 410c and a second wind wheel 420c spaced apart in the vertical direction, and corresponding first air outlets 121c and second air outlets 122c are provided on the front side of the housing 10c. Thus, the cabinet air conditioner 100c can have air supply diversity, improving the air supply comfort and user experience of the cabinet air conditioner 100c. Similarly, when the air conditioner 100c is other types of air conditioners, by providing a first wind wheel placement cavity 310c and a second wind wheel placement cavity 320c within the air conditioner 100c, the air conditioner 100c can have air supply diversity, improving the working performance of the air conditioner 100c.

[0237] In some embodiments of the present invention, the first wind wheel 410c may be one of a centrifugal wind wheel, a cross-flow wind wheel, and an axial-flow wind wheel, and the second wind wheel 420c may be one of a centrifugal wind wheel, a cross-flow wind wheel, and an axial-flow wind wheel. For example, a plurality of centrifugal wind wheels may be provided in the air conditioner 100c, or a plurality of cross-flow wind wheels may be provided in the air conditioner 100c, or a plurality of axial-flow wind wheels may be provided in the air conditioner 100c, or a centrifugal wind wheel and a cross-flow wind wheel may be provided in the air conditioner 100c, or a centrifugal wind wheel and an axial-flow wind wheel may be provided in the air conditioner 100c, or a cross-flow wind wheel and an axial-flow wind wheel may be provided in the air conditioner 100c. Thus, the diversity and flexibility of the design of the air conditioner 100c can be improved. Since the centrifugal wind wheel, the cross-flow wind wheel, and the axial-flow wind wheel have different air supply distances and air supply volumes, in the process of designing and manufacturing the air conditioner 100c, the corresponding wind wheel combination and arrangement can be selected according to the actual air supply requirements.

[0238] For example, a cross-flow wind wheel may be provided in the first wind wheel placement cavity 310c, and a centrifugal wind wheel may be placed in the second wind wheel placement cavity 320c. It can be understood that, compared with the cross-flow wind wheel, the centrifugal wind wheel can generate a greater pressure on the air flow, causing the air flow to blow to a farther distance. Thus, the air flow flowing from the first wind wheel placement cavity 310c into the second wind wheel placement cavity 320c through the communication air duct 330c can be accelerated by the centrifugal wind wheel to achieve long-distance air supply.

[0239] Below according to Figures 24 - 30 Three specific embodiments will be described in detail for the air conditioner 100c according to the fourth embodiment of the present invention. It should be understood that the following description is only an exemplary description and not a specific limitation of the present invention.

[0240] Embodiment 1:

[0241] As Figures 24 - 27 shown, the air conditioner 100c is a cabinet air conditioner 100c, and the air conditioner 100c includes: a housing 10c, a heat exchanger 20c, an air duct component 30c, an adjustment component, a wind wheel component, and a motor component 50c.

[0242] Among them, as Figure 25 shown, an air inlet 110c and an air outlet are provided on the rear wall of the housing 10c, and a heat exchange air duct 130c communicating with the air inlet 110c is provided in the housing 10c, and the heat exchanger 20c is provided in the heat exchange air duct 130c.

[0243] The air duct component 30c is arranged inside the housing 10c, and the air duct component 30c defines an air flow passage. A first impeller placement cavity 310c and a second impeller placement cavity 320c are arranged inside the air duct component 30c, and the second impeller placement cavity 320c is located above the first impeller placement cavity 310c. A cross-flow impeller is arranged inside the first impeller placement cavity 310c, and a centrifugal impeller is arranged inside the second impeller placement cavity 320c. The central axis of the centrifugal impeller and the central axis of the cross-flow impeller are located on the same straight line, and the centrifugal impeller and the cross-flow impeller are respectively connected to two output shafts of a dual-axis motor. The minimum distance between the centrifugal impeller and the cross-flow impeller is L, and it satisfies: L≥150mm.

[0244] The first impeller placement cavity 310c is communicated with the heat exchange air duct 130c, the second impeller placement cavity 320c is arranged separately from the heat exchange air duct 130c, and a communication air duct 330c is arranged between the second impeller placement cavity 320c and the first impeller placement cavity 310c. The communication air duct 330c is provided with an adjusting component for adjusting the air volume.

[0245] A first air outlet 121c communicated with the first impeller placement cavity 310c and a second air outlet 122c communicated with the second impeller placement cavity 320c are arranged on the front wall of the housing 10c. A plurality of rotatable air guide plates are correspondingly arranged at each air outlet, and the rotation axes of the outer air guide plates at two adjacent air outlets are vertically arranged. Among them, the outer air guide plate at the second air outlet 122c extends along the horizontal direction to realize the air supply effect of swinging up and down at the second air outlet 122c. The outer air guide plate at the first air outlet 121c extends along the vertical direction to realize the air supply effect of swinging left and right at the first air outlet 121c. The area of the second air outlet 122c is S1, and the area of the first air outlet 121c is S2, and it satisfies: S2 / S1 = 2 / 5.

[0246] It should be noted that in the related art, when the air conditioner operates in the cooling mode, since the cold air flow blown out from the air outlet sinks and the air supply distance decreases, the cooling speed at a place far from the air conditioner decreases. Moreover, the temperature difference between the far and near in the room is large, which affects the user experience of the air conditioner.

[0247] When the air conditioner is turned on to the cooling windless feeling mode, in order to make the wind feeling soft and comfortable, the air flow speed drops sharply and the air supply distance is small. This makes the temperature of the air conditioner uneven from far to near, further affecting the comfort experience of the air conditioner.

[0248] When the air conditioner operates in the heating mode, the hot air flow blown out from the air outlet quickly floats upward under the action of air pressure and it is difficult to transport the hot air flow to the lower position of the feet, affecting the comfort of the air conditioner in the heating mode.

[0249] For the air conditioner 100c according to the present invention, when the air conditioner 100c is in the cooling mode, the centrifugal fan in the upper second fan placement cavity 320c can pressurize some of the cold air flow in the first fan placement cavity 310c and send it to a farther distance. Moreover, the cold air flow blown out from the second air outlet 122c can guide the cold air flow blown out from the first air outlet 121c to blow far away, so that the sedimentation speed of the cold air flow blown out from the air outlet can be slowed down, and thus the temperature in the room can be made more uniform.

[0250] When the air conditioner 100c operates in the direct cooling and windless feeling mode, the air flow at the upper second air outlet 122c can be sent in a parabolic shape, so that the air flow is transported to a farther place, making the temperature field at different positions in the room more uniform and compensating for the defect of insufficient long-distance cold quantity transportation in the micro-hole windless feeling mode.

[0251] Embodiment 2:

[0252] As Figure 28 shown, different from Embodiment 1, in this embodiment, the adjusting assembly is located on the front side of the housing 10c. When the adjusting assembly conducts and connects the ventilation duct 330c, under the action of the centrifugal fan, the air flow blown out from the first air outlet 121c can be sucked into the second fan placement cavity 320c again, and after being pressurized by the centrifugal fan, the air flow is transported to a farther distance, thereby improving the cooling and heating efficiency of the air conditioner 100c.

[0253] Embodiment 3:

[0254] As Figure 29 shown, different from Embodiment 1, in this embodiment, the ventilation duct 330c can be arranged on both sides in the left-right direction of the cross-flow fan, and the ventilation duct 330c extends in the up-down direction. Under the action of the centrifugal fan, some of the air flow after heat exchange can flow into the second fan placement cavity 320c along the ventilation duct 330c, and after being accelerated by the centrifugal fan, it is blown to a distance.

[0255] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0256] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that, it comprises: a housing, an air inlet and an air outlet are provided on the housing, and a heat exchange air duct communicating with the air inlet is provided inside the housing; a heat exchanger, the heat exchanger is arranged inside the heat exchange air duct; an air duct component, the air duct component is arranged inside the housing, a first impeller placement cavity and a second impeller placement cavity are provided inside the air duct component, the first impeller placement cavity communicates with the heat exchange air duct, the second impeller placement cavity is arranged separately from the heat exchange air duct, and the second impeller placement cavity communicates with the air inlet, and both the first impeller placement cavity and the second impeller placement cavity communicate with the air outlet; an impeller assembly, the impeller assembly includes a first impeller and a second impeller, the first impeller is arranged inside the first impeller placement cavity, and the second impeller is arranged inside the second impeller placement cavity; a motor assembly, both the first impeller and the second impeller are driven to rotate by the motor assembly; the air outlet includes a first air outlet and a second air outlet, the first impeller placement cavity communicates with the first air outlet, and the second impeller placement cavity communicates with the second air outlet; projected along the front-rear direction, the center of the first impeller is located inside the heat exchanger, and the center of the second impeller is located outside the heat exchanger; the second impeller placement cavity communicates with the first impeller placement cavity through a connecting air duct; an adjusting assembly, the adjusting assembly cooperates with the connecting air duct to adjust the air volume of the connecting air duct; the adjusting assembly is located on the front side of the housing. When the adjusting assembly conducts the connecting air duct, under the action of the second impeller, the air flow blown out from the first air outlet is sucked into the second impeller placement cavity again, and then blown out from the second air outlet.

2. The air conditioner according to claim 1, characterized in that, the second impeller placement cavity is arranged at least at one of the upper, lower, left, and right sides of the first impeller placement cavity.

3. The air conditioner according to claim 1, characterized in that, there is one second impeller placement cavity, and the second impeller placement cavity is located above or below the first impeller placement cavity.

4. The air conditioner according to claim 1, characterized in that, there are two second impeller placement cavities, and they are distributed on the upper and lower sides of the first impeller placement cavity.

5. The air conditioner according to claim 1, characterized in that, the first impeller and the second impeller are coaxially arranged, the motor assembly includes a double-shaft motor, and the first impeller and the second impeller are respectively connected to two output shafts of the double-shaft motor.

6. The air conditioner according to claim 5, characterized in that, the minimum distance between the first impeller and the second impeller in the axial direction is L, satisfying: L≥100mm.

7. The air conditioner according to claim 1, characterized in that, the motor assembly includes a first driving motor and a second driving motor, the first impeller is driven to rotate by the first driving motor, and the second impeller is driven to rotate by the second driving motor.

8. The air conditioner according to claim 1, characterized in that, The air outlets are multiple, and an inner air guide strip and a rotatable outer air guide plate are correspondingly arranged at each air outlet, and the rotation axes of the outer air guide plates at two adjacent air outlets are vertically arranged.

9. The air conditioner according to claim 1, wherein, the area of the first air outlet is S1, and the area of the second air outlet is S2, satisfying: 10% ≤ S2 / (S1 + S2) ≤ 50%.

10. The air conditioner according to claim 1, wherein, a pressure regulating member is arranged in the second air wheel placement cavity, an air outlet passage is defined in the pressure regulating member, the cross-sectional area of the second air outlet is S2, and the cross-sectional area of the outlet end of the air outlet passage is S3, satisfying: S2 ≠ S3.

11. The air conditioner according to claim 10, wherein, the cross-sectional area of the air outlet passage gradually decreases along the flowing direction of the air flow.

12. The air conditioner according to claim 1, wherein, the first air wheel is one of a centrifugal air wheel, a cross-flow air wheel and an axial-flow air wheel, and the second air wheel is one of a centrifugal air wheel, a cross-flow air wheel and an axial-flow air wheel.

13. The air conditioner according to any one of claims 1-12, wherein, the air conditioner is a split floor-mounted air conditioner, or a split wall-mounted air conditioner, or a ceiling-mounted air conditioner, or a window air conditioner or a mobile air conditioner.

Images