Fan assembly and air conditioner

Abstract

The utility model discloses a fan assembly and an air conditioner, the fan assembly comprises at least one first wind wheel assembly, and the first wind wheel assembly comprises a centrifugal wind wheel; the first wind wheel assembly comprises a centrifugal wind wheel, the second wind wheel assembly comprises a cross-flow wind wheel, the cross-flow wind wheel and the centrifugal wind wheel are coaxially arranged and connected, and the first wind wheel assembly and the second wind wheel assembly are arranged at an interval in the axial direction. Therefore, the cross-flow wind wheel and the centrifugal wind wheel are arranged at the same time, so that the axial size of the cross-flow wind wheel is reduced, the pressure resistance of the cross-flow wind wheel is improved, the problem that the cross-flow wind wheel is only suitable for working at low static pressure is solved, the air inlet and outlet effect and the air inlet and outlet amount of the fan assembly are improved, and therefore the heat exchange efficiency of the air conditioner is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning equipment, in particular to a fan component and an air conditioner. Background Art

[0002] In the related art, air conditioners usually use centrifugal impellers to deliver air. In order to ensure the air suction effect of the centrifugal impeller, sufficient spacing needs to be reserved between two adjacent centrifugal impellers, resulting in poor air inlet and outlet effects of the fan assembly, thereby resulting in poor heat exchange efficiency and heat exchange effect of the duct air conditioner; some air conditioners use cross-flow impellers, but the cross-flow impellers have poor pressure resistance, which limits their usage scenarios. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a fan assembly, which has good air inlet and outlet effects.

[0004] A fan assembly comprises: at least one first wind wheel assembly, the first wind wheel assembly comprises a centrifugal wind wheel; at least one second wind wheel assembly, the second wind wheel assembly comprises a crossflow wind wheel, the crossflow wind wheel is coaxially arranged and connected to the centrifugal wind wheel, and the first wind wheel assembly and the second wind wheel assembly are spaced apart in the axial direction.

[0005] According to the fan assembly of the utility model, a crossflow fan wheel and a centrifugal fan wheel are provided at the same time to reduce the axial size of the crossflow fan wheel, improve the pressure resistance of the crossflow fan wheel, and improve the problem that the crossflow fan wheel is only suitable for working under low static pressure. The crossflow fan wheel is suitable for use in scenarios where an air duct is connected, and is beneficial to improving the air inlet and outlet effects and the air inlet and outlet volume of the fan assembly, thereby improving the heat exchange efficiency of the air conditioner.

[0006] According to some embodiments of the present invention, there are multiple first wind wheel assemblies, and the second wind wheel assembly is provided between any two adjacent first wind wheel assemblies in the axial direction.

[0007] According to some embodiments of the present invention, there are multiple second wind wheel assemblies, and one first wind wheel assembly is provided between any two adjacent second wind wheel assemblies in the axial direction.

[0008] According to some embodiments of the utility model, the fan assembly also includes: a shell body, the shell body forming an installation cavity and a fan air inlet connected to the installation cavity; a partition, the partition is arranged in the installation cavity, and divides the installation cavity into a first sub-installation cavity and a second sub-installation cavity arranged along the axial direction, the first wind wheel assembly is arranged in the first sub-installation cavity, and the second wind wheel assembly is arranged in the second sub-installation cavity.

[0009] According to some embodiments of the present invention, the first wind wheel assembly also includes a volute, the volute is disposed in the first sub-mounting cavity and connected to the shell body, and the centrifugal wind wheel is disposed in the volute.

[0010] According to some embodiments of the present invention, the volute and the partition are spaced apart in the axial direction, and the air inlet of the volute is arranged opposite to the partition.

[0011] According to some embodiments of the present invention, the crossflow wind wheel includes a plurality of sub-wind wheels, and the plurality of sub-wind wheels are sequentially arranged and connected along the axial direction.

[0012] According to some embodiments of the present invention, the diameter of the crossflow wind wheel is D, the width dimension of the crossflow wind wheel in the axial direction is H, and the relationship is satisfied: H≤9D.

[0013] According to some embodiments of the present invention, the fan assembly further includes a rotating shaft, which is respectively connected to the centrifugal wind wheel and the crossflow wind wheel, and can drive the centrifugal wind wheel and the crossflow wind wheel to rotate synchronously.

[0014] According to some embodiments of the present invention, the rotating shaft is integrally arranged with the centrifugal wind wheel and the crossflow wind wheel.

[0015] According to some embodiments of the utility model, the fan assembly also includes a driving device, which is arranged on the same side of the first wind wheel assembly and the second wind wheel assembly in the axial direction and is connected to the rotating shaft, and the driving device is used to drive the rotating shaft to rotate.

[0016] Another object of the present invention is to provide an air conditioner.

[0017] An air conditioner comprises the above-mentioned fan assembly.

[0018] The air conditioner has the same advantages as the above-mentioned fan assembly, which will not be described in detail here.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the 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 easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 This is a structural schematic diagram of an air conditioner according to an embodiment of the utility model;

[0022] Figure 2 Schematic diagram of the assembly of the centrifugal impeller, the crossflow impeller and the rotating shaft according to the embodiment of the utility model Figure 1 ;

[0023] Figure 3 Schematic diagram of the assembly of the centrifugal impeller, the crossflow impeller and the rotating shaft according to the embodiment of the utility model Figure 2 .

[0024] Reference numerals:

[0025] The first wind wheel assembly 110, the centrifugal wind wheel 111, the volute 112,

[0026] The second wind wheel assembly 120, the crossflow wind wheel 121, the sub-wind wheel 1211,

[0027] Shell body 130, installation cavity 131, first sub-installation cavity 1311, second sub-installation cavity 1312,

[0028] The partition 140, the rotating shaft 150, the driving device 160,

[0029] Air conditioner 1000. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it is necessary to understand that the terms "center", "width", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, "plurality" means two or more.

[0033] Reference below Figure 1-Figure 3 A fan assembly according to an embodiment of the present invention is described.

[0034] Reference Figure 1According to the utility model, the fan assembly includes: at least one first wind wheel assembly 110, the first wind wheel assembly 110 includes a centrifugal wind wheel 111; at least one second wind wheel assembly 120, the second wind wheel assembly 120 includes a crossflow wind wheel 121, the crossflow wind wheel 121 is coaxially arranged and connected with the centrifugal wind wheel 111, so that the crossflow wind wheel 121 and the centrifugal wind wheel 111 can rotate coaxially and synchronously, and the crossflow wind wheel 121 and the centrifugal wind wheel 111 are simultaneously arranged in the fan assembly to reduce the axial size of the crossflow wind wheel 121, improve the pressure resistance of the crossflow wind wheel 121, so as to improve the problem that the crossflow wind wheel 121 is only suitable for working under low static pressure, so that the crossflow wind wheel 121 can be suitable for the use scenario of connecting the air duct, and can ensure the inlet and outlet air volume and the inlet and outlet air effect of the fan assembly, which is beneficial to improve the heat exchange efficiency of the air conditioner 1000.

[0035] Furthermore, the first wind wheel assembly 110 and the second wind wheel assembly 120 are spaced apart in the axial direction to facilitate air intake of the first wind wheel assembly 110 and the second wind wheel assembly 120 , thereby improving the air intake effect of the fan assembly.

[0036] In the related art, duct air conditioners usually use centrifugal impellers to deliver air. In order to ensure the air suction effect of the centrifugal impeller, sufficient spacing needs to be reserved between two adjacent centrifugal impellers, resulting in poor air inlet and outlet effects of the fan assembly, thereby resulting in poor heat exchange efficiency and heat exchange effect of the duct air conditioner; some air conditioners use cross-flow impellers, but the cross-flow impellers have poor pressure resistance, which limits their usage scenarios.

[0037] The present application simultaneously arranges a crossflow wind wheel 121 and a centrifugal wind wheel 111 to reduce the axial size of the crossflow wind wheel 121 and improve the compression resistance of the crossflow wind wheel 121, so that the crossflow wind wheel 121 is suitable for the use scenario of connecting to an air duct. At the same time, the air volume and air effect of the fan assembly can be guaranteed to improve the heat exchange efficiency of the air conditioner 1000.

[0038] Optionally, a plurality of first wind wheel assemblies 110 may be provided, a plurality of second wind wheel assemblies 120 may be provided, and the number of first wind wheel assemblies 110 and second wind wheel assemblies 120 may be the same or different. The specific number and arrangement of the first wind wheel assemblies 110 and the second wind wheel assemblies 120 may be determined based on actual production requirements and are not specifically limited here.

[0039] According to the fan assembly of the utility model, by simultaneously providing a crossflow fan wheel 121 and a centrifugal fan wheel 111, the axial dimension of the crossflow fan wheel 121 is reduced, the pressure resistance of the crossflow fan wheel 121 is improved, and the problem that the crossflow fan wheel 121 is only suitable for working under low static pressure is improved, so that the crossflow fan wheel 121 is suitable for use scenarios connected to an air duct, and is beneficial to improving the air inlet and outlet effects and the air inlet and outlet volume of the fan assembly, thereby improving the heat exchange efficiency of the air conditioner 1000.

[0040] Combination Figures 1 to 3 In some embodiments of the present invention, there are multiple first wind wheel assemblies 110, and a second wind wheel assembly 120 is provided between any two adjacent first wind wheel assemblies 110 in the axial direction.

[0041] For example, two first wind wheel assemblies 110 can be provided, and the two first wind wheel assemblies 110 are spaced apart in the axial direction. The second wind wheel assembly 120 can be provided between the two first wind wheel assemblies 110 and spaced apart from the two first wind wheel assemblies 110, so as to reduce the axial dimension of the second wind wheel assembly 120, improve the compression resistance of the cross-flow wind wheel 121, and help to improve the problem of uneven inlet and outlet air and small inlet and outlet air volume of the fan assembly due to the large spacing between the centrifugal wind wheels 111, which is beneficial to ensure the heat exchange effect of the air conditioner 1000.

[0042] Accordingly, when there are more than two first wind wheel assemblies 110, there may be multiple second wind wheel assemblies 120, and each second wind wheel assembly 120 may be arranged between two adjacent first wind wheel assemblies 110 to further increase the air volume of the wind turbine assembly. Of course, it can be understood that the number of first wind wheel assemblies 110 and second wind wheel assemblies 120 may be determined according to actual production requirements, and no specific limitation is made here.

[0043] In some embodiments of the present invention, there are multiple second wind wheel assemblies 120, and a first wind wheel assembly 110 is provided between any two adjacent second wind wheel assemblies 120 in the axial direction.

[0044] For example, two second wind wheel assemblies 120 may be provided, and the two second wind wheel assemblies 120 are spaced apart in the axial direction, and the first wind wheel assembly 110 may be provided between the two second wind wheel assemblies 120 and spaced apart from the two second wind wheel assemblies 120. This structural arrangement has the same technical effect as the above-mentioned structure and will not be described in detail here.

[0045] Correspondingly, when there are more than two second wind wheel assemblies 120, there can be multiple first wind wheel assemblies 110 to further ensure the air volume in and out of the wind turbine assembly. Of course, it can be understood that the number of first wind wheel assemblies 110 and second wind wheel assemblies 120 can be determined according to actual production requirements and is not specifically limited here.

[0046] In some other embodiments of the present invention, there are multiple first wind wheel assemblies 110, and there are multiple second wind wheels. In the axial direction, multiple first wind wheel assemblies 110 are adjacently arranged, and multiple second wind wheel assemblies 120 are adjacently arranged, so as to facilitate the assembly of the first wind wheel assemblies 110 and the second wind wheel assemblies 120.

[0047] Of course, it is understandable that the specific arrangement of the first wind wheel assembly 110 and the second wind wheel assembly 120 can be determined according to actual production requirements and is not specifically limited here.

[0048] like Figure 1 As shown, in some embodiments of the present invention, the fan assembly also includes: a shell body 130, the shell body 130 is formed with an installation cavity 131 and a fan air inlet connected to the installation cavity 131; a partition 140, the partition 140 is arranged in the installation cavity 131, and divides the installation cavity 131 into a first sub-installation cavity 1311 and a second sub-installation cavity 1312 arranged along the axial direction, the first wind wheel assembly 110 is arranged in the first sub-installation cavity 1311, and the second wind wheel assembly 120 is arranged in the second sub-installation cavity 1312.

[0049] Specifically, the shell body 130 is formed with an installation cavity 131 extending along the axial direction parallel to the first wind wheel assembly 110 and the second wind wheel assembly 120, and the installation cavity 131 is used to install the first wind wheel assembly 110 and the second wind wheel assembly 120, and a fan air inlet is formed on the shell body 130, and the first wind wheel assembly 110 and the second wind wheel assembly 120 can suck air from the external environment (for example: indoor environment) into the installation cavity 131 through the fan air inlet.

[0050] Optionally, a plurality of fan air inlets may be provided, and the plurality of fan air inlets may be respectively provided in one-to-one correspondence with the first wind wheel assembly 110 and the second wind wheel assembly 120, so as to facilitate the first wind wheel assembly 110 and the second wind wheel assembly 120 to absorb air; or a single fan air inlet may be provided, and the fan air inlet extends along the axial direction of the first wind wheel assembly 110 and the second wind wheel assembly 120, and the first wind wheel assembly 110 and the second wind wheel assembly 120 may absorb air through the fan air inlet, and such arrangement of the fan air inlet facilitates the processing of the shell body 130 and can reduce the material used for the shell body 130, which is beneficial to reducing the production cost of the shell body 130.

[0051] Of course, it is understandable that the arrangement of the fan air inlet can be determined according to actual production requirements and is not specifically limited here.

[0052] Furthermore, a partition 140 is provided in the installation cavity 131, and the partition 140 can be connected to the shell body 130, and the partition 140 is used to separate the installation cavity 131 into a first sub-installation cavity 1311 and a second sub-installation cavity 1312. The first sub-installation cavity 1311 is used to install the first wind wheel assembly 110, and the second sub-installation cavity 1312 is used to install the second wind wheel assembly 120. The partition 140 can separate the first sub-installation cavity 1311 and the second sub-installation cavity 1312 to prevent the wind from grabbing due to the high wind pressure of the centrifugal wind wheel 111, which is beneficial to ensure the uniformity of the inlet and outlet of the first wind wheel assembly 110 and the second wind wheel assembly 120.

[0053] like Figure 1 As shown, in some embodiments of the present invention, the first wind wheel assembly 110 further includes a volute 112 , which is disposed in the first sub-installation cavity 1311 and connected to the shell body 130 , and the centrifugal wind wheel 111 is disposed in the volute 112 .

[0054] Specifically, the shell body 130 can provide an installation position for the volute 112. Specifically, the volute 112 is installed in the first sub-installation cavity 1311, and the centrifugal wind wheel 111 is arranged in the volute 112. An air inlet and an air outlet are formed on the volute 112. The airflow sucked in by the centrifugal wind wheel 111 can enter the volute 112 through the air inlet. The volute 112 can guide the airflow, and the volute 112 is arranged on the outside of the centrifugal wind wheel 111, which is beneficial to reduce the noise generated by the rotation of the centrifugal wind wheel 111.

[0055] The air flow can be discharged from the volute 112 through the air outlet, and the air outlet is connected to the cavity where the heat exchanger of the air conditioner 1000 is located. The air flow can flow to the heat exchanger of the air conditioner 1000, and the heat exchanger exchanges heat with the air flow, and the air flow after heat exchange is further discharged from the air conditioner 1000.

[0056] Reference Figure 1 In some embodiments of the present invention, the volute 112 and the partition 140 are spaced apart in the axial direction, and the air inlet of the volute 112 is arranged opposite to the partition 140.

[0057] Specifically, the air inlet of the volute 112 is arranged opposite to the partition 140, that is, the air inlet of the volute 112 is located on one side of the volute 112 in the axial direction, and the volute 112 and the partition 140 are spaced apart in the axial direction to facilitate the centrifugal fan to absorb air and prevent the partition 140 from blocking the air inlet and causing the centrifugal fan to be unable to absorb air, thereby helping to ensure the air intake effect of the fan assembly.

[0058] Combination Figures 1 to 3 In some embodiments of the present invention, the crossflow wind wheel 121 includes a plurality of sub-wind wheels 1211, and the plurality of sub-wind wheels 1211 are sequentially arranged and connected along the axial direction.

[0059] Specifically, a plurality of sub-wind wheels 1211 are arranged in sequence along the axial direction and connected to form a cross-flow wind wheel 121. The sub-wind wheel 1211 is easy to demold, thereby facilitating the production of the cross-flow wind wheel 121. The plurality of sub-wind wheels 1211 can be welded together to ensure the connection strength between the plurality of sub-wind wheels 1211, which is beneficial to improving the service life of the cross-flow wind wheel 121.

[0060] Optionally, the plurality of sub-wind wheels 1211 may be integrally formed, thereby facilitating the assembly of the crossflow wind wheel 121 and improving the assembly convenience of the wind turbine assembly.

[0061] like Figure 2 As shown, in some embodiments of the present invention, the diameter of the crossflow wind wheel 121 is D, the width dimension of the crossflow wind wheel 121 in the axial direction is H, and the relationship is satisfied: H≤9D, so as to ensure the movement and jump amount of the crossflow wind wheel 121, thereby ensuring the dynamic balance of the crossflow wind wheel 121, reducing the noise generated by the vibration of the crossflow wind wheel 121, and preventing the crossflow wind wheel 121 from getting stuck, thereby increasing the service life of the crossflow wind wheel 121.

[0062] Reference Figure 2 In some embodiments of the present invention, the diameter of the centrifugal wind wheel 111 is L, the width of the centrifugal wind wheel 111 in the axial direction is R, and the relationship is satisfied: 0.8L≤R≤1.4L, so as to ensure the air suction efficiency of the centrifugal wind wheel 111, thereby ensuring the air inlet and outlet efficiency of the fan assembly and improving the air inlet and outlet effects of the fan assembly.

[0063] Combination Figures 1 to 3 In some embodiments of the present invention, the fan assembly further includes a rotating shaft 150, which is respectively connected to the centrifugal wind wheel 111 and the crossflow wind wheel 121, and can drive the centrifugal wind wheel 111 and the crossflow wind wheel 121 to rotate synchronously.

[0064] Specifically, the centrifugal wind wheel 111 and the crossflow wind wheel 121 are arranged at intervals in the axial direction, and a rotating shaft 150 is arranged between two adjacent centrifugal wind wheels 111 and crossflow wind wheels 121, and positioning structures are arranged on both sides of the centrifugal wind wheel 111 and the crossflow wind wheel 121 (for example: the positioning structure has a positioning protrusion, the positioning protrusion is arranged on the side wall surface of the centrifugal wind wheel 111 and the crossflow wind wheel 121, and is arranged colinearly with the axis of the centrifugal wind wheel 111 and the crossflow wind wheel 121), and a positioning matching structure is arranged on the rotating shaft 150 (for example: the positioning matching structure is configured as a positioning groove), and the rotating shaft 150 is pre-positioned and matched with the crossflow wind wheel 121 and the centrifugal wind wheel 111 through the positioning structure and the positioning matching structure, so as to facilitate the positioning and installation of the rotating shaft 150, and the rotating shaft 150 can drive the centrifugal wind wheel 111 and the crossflow wind wheel 121 to rotate synchronously.

[0065] In some embodiments of the present invention, the rotating shaft 150 is integrally arranged with the centrifugal wind wheel 111 and the crossflow wind wheel 121. For example, the rotating shaft 150 can be formed separately and welded to the centrifugal wind wheel 111 and the crossflow wind wheel 121 respectively, so that the rotating shaft 150 is integrally arranged with the centrifugal wind wheel 111 and the crossflow wind wheel 121, wherein the welding method can be ultrasonic welding, and the material of the rotating shaft 150 is the same as that of the centrifugal wind wheel 111 and the crossflow wind wheel 121, so as to facilitate welding the three together.

[0066] Alternatively, the rotating shaft 150 may be integrally formed with the centrifugal wind wheel 111 and the crossflow wind wheel 121 to facilitate assembly of the fan assembly.

[0067] It should be noted that the specific configuration of the rotating shaft 150 can be determined according to actual production requirements and is not specifically limited here, as long as the rotating shaft 150 can drive the centrifugal impeller 111 and the crossflow impeller 121 to rotate synchronously.

[0068] like Figure 1 As shown, in some embodiments of the present invention, the fan assembly also includes a driving device 160, which is arranged on the same side of the first wind wheel assembly 110 and the second wind wheel assembly 120 in the axial direction and is connected to the rotating shaft 150. The driving device 160 is used to drive the rotating shaft 150 to rotate.

[0069] Specifically, the driving device 160 is located on one side of the first wind wheel assembly 110 and the second wind wheel assembly 120 in the arrangement direction, so as to prevent the small wind volume and uneven wind speed distribution in the middle position of the fan assembly caused by setting the driving device 160 in the middle position of the fan assembly, thereby improving the uniformity of the air inlet and outlet of the fan assembly.

[0070] Furthermore, a wind wheel (which may be a centrifugal wind wheel 111 or a crossflow wind wheel 121) arranged near the driving device 160 in the axial direction is provided with a rotating shaft 150 on the side opposite to the driving device 160, and the rotating shaft 150 is transmission-connected to the driving device 160. The driving device 160 can drive the rotating shaft 150 to rotate, and the rotating shaft 150 drives the wind wheel connected thereto (for example: the centrifugal wind wheel 111 or the crossflow wind wheel 121) to rotate, and the centrifugal wind wheel 111 and the crossflow wind wheel 121 are connected to each other, so that the driving device 160 can drive the centrifugal wind wheel 111 and the crossflow wind wheel 121 to rotate through the rotating shaft 150.

[0071] The driving device 160 may be configured as a motor.

[0072] In some embodiments of the present invention, a flexible connector is provided on the rotating shaft 150 connected to the driving device 160, and the flexible connector is provided at one end of the rotating shaft 150 away from the first wind wheel assembly 110 and the second wind wheel assembly 120, and the flexible connector is connected between the driving device 160 and the rotating shaft 150.

[0073] Specifically, the rotating shaft 150 is connected to the driving device 160 through a flexible connector to achieve a flexible connection between the rotating shaft 150 and the driving device 160, effectively preventing the vibration of the rotating shaft 150, reducing the wear and vibration noise of the rotating shaft 150, and preventing the centrifugal wind wheel 111 and the cross-flow wind wheel 121 from vibrating, thereby reducing the noise generated during the operation of the fan assembly.

[0074] Optionally, the flexible connecting member can be constructed as a rubber coupling, which is respectively connected to the rotating shaft 150 and the output shaft of the driving device 160. By setting the rubber coupling, it is convenient to achieve the concentric installation of the rotating shaft 150 and the output shaft of the driving device 160 to ensure the transmission effect, and the rubber coupling can effectively absorb vibration impact and reduce the noise generated by vibration.

[0075] The flexible connector can be constructed as a rubber insert, and the end of the rotating shaft 150 connected to the driving device 160 is constructed as an open end. The rubber insert can be embedded in the open end of the rotating shaft 150 and fixedly connected to the rotating shaft 150. The output shaft of the driving device 160 can be plugged into the rubber insert and connected to the rubber insert, so that the output shaft of the driving device 160 can be flexibly connected to the rotating shaft 150 through the rubber insert, preventing the rotating shaft 150 from vibrating, thereby preventing the centrifugal wind wheel 111 and the crossflow wind wheel 121 from vibrating, and can reduce the noise generated when the wind wheel assembly is working.

[0076] In addition, since the rubber insert is embedded in the rotating shaft 150, that is, the rotating shaft 150 can provide a mounting position for the rubber insert, there is no need to set up additional assembly space for the rubber insert in the axial direction, which is beneficial to reducing the size of the fan assembly in the axial direction and reducing the axial space required for arranging the wind wheel assembly.

[0077] According to the air conditioner 1000 of the present invention, it includes the above-mentioned fan assembly, wherein the air conditioner 1000 can be a duct air conditioner or a wall mounted air conditioner.

[0078] Since the air conditioner 1000 is provided with the above-mentioned fan assembly, by simultaneously providing the crossflow fan wheel 121 and the centrifugal fan wheel 111, the axial dimension of the crossflow fan wheel 121 is reduced, the pressure resistance of the crossflow fan wheel 121 is improved, and the problem that the crossflow fan wheel 121 is only suitable for working under low static pressure is improved. The crossflow fan wheel 121 is suitable for the use scenario of connecting to an air duct, and is beneficial to improving the air inlet and outlet effects and the air inlet and outlet volume of the fan assembly, thereby improving the heat exchange efficiency of the air conditioner 1000.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fan assembly, characterized in that: include: at least one first wind wheel assembly, wherein the first wind wheel assembly comprises a centrifugal wind wheel; At least one second wind wheel assembly, wherein the second wind wheel assembly comprises a crossflow wind wheel, the crossflow wind wheel is coaxially arranged and connected to the centrifugal wind wheel, and the first wind wheel assembly and the second wind wheel assembly are spaced apart in the axial direction.

2. The fan assembly according to claim 1, characterized in that: There are multiple first wind wheel assemblies, and the second wind wheel assembly is arranged between any two adjacent first wind wheel assemblies in the axial direction.

3. The fan assembly according to claim 1, characterized in that: There are multiple second wind wheel assemblies, and one first wind wheel assembly is provided between any two adjacent second wind wheel assemblies in the axial direction.

4. The fan assembly according to claim 1, characterized in that: Also includes: A shell body, wherein the shell body is formed with a mounting cavity and a fan air inlet communicated with the mounting cavity; A partition is arranged in the installation cavity and divides the installation cavity into a first sub-installation cavity and a second sub-installation cavity arranged along the axial direction, the first wind wheel assembly is arranged in the first sub-installation cavity, and the second wind wheel assembly is arranged in the second sub-installation cavity.

5. The fan assembly according to claim 4, characterized in that: The first wind wheel assembly also includes a volute, which is arranged in the first sub-installation cavity and connected to the shell body, and the centrifugal wind wheel is arranged in the volute.

6. The fan assembly according to claim 5, characterized in that: The volute and the partition are spaced apart in the axial direction, and the air inlet of the volute is arranged opposite to the partition.

7. The fan assembly according to claim 1, characterized in that: The crossflow wind wheel includes a plurality of sub-wind wheels, and the plurality of sub-wind wheels are sequentially arranged and connected along the axial direction.

8. The fan assembly according to claim 1, characterized in that: The diameter of the crossflow wind wheel is D, the width dimension of the crossflow wind wheel in the axial direction is H, and the relationship is satisfied: H≤9D.

9. The fan assembly according to claim 1, characterized in that: It also includes a rotating shaft, which is connected to the centrifugal wind wheel and the crossflow wind wheel respectively, and can drive the centrifugal wind wheel and the crossflow wind wheel to rotate synchronously.

10. The fan assembly according to claim 9, characterized in that: The rotating shaft is integrally arranged with the centrifugal wind wheel and the crossflow wind wheel.

11. The fan assembly according to claim 10, characterized in that: It also includes a driving device, which is arranged on the same side of the first wind wheel assembly and the second wind wheel assembly in the axial direction and is connected to the rotating shaft. The driving device is used to drive the rotating shaft to rotate.

12. An air conditioner, characterized in that: Comprising a fan assembly according to any one of claims 1-11.

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