Axial flow fan assembly and air conditioner

Abstract

The utility model provides an axial flow fan assembly and an air conditioner, and belongs to the field of air conditioners. According to the axial flow fan assembly, the fan module in the axial flow fan assembly can integrally rotate relative to the axial flow air duct shell, axial flow fan blades in the fan module can rotate in the forward direction no matter which side the fan module discharges air, and therefore the air outlet amount of the axial flow fan assembly is effectively guaranteed when the axial flow fan assembly discharges air in different directions, and the service life of the axial flow fan assembly is prolonged. In addition, the fan module can integrally rotate relative to the axial flow air duct shell, so that the overturning diameter of the axial flow fan during overturning can be greatly reduced, the shape size of the whole air conditioner can be effectively reduced when the axial flow fan assembly is installed in the air conditioner, and the appearance coordination of the whole air conditioner is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and more particularly, to an axial flow fan assembly and an air conditioner. Background Art

[0002] There are two ways to achieve reversible air supply in existing reversible air supply air conditioners. One is to set a reversible axial flow fan and control the forward and reverse rotation of the motor of the axial flow fan to achieve reversible air supply. This method has high requirements for the manufacturing cost of the motor, and there are problems such as short air supply distance and small air pressure in the axial flow fan. The other is to set a mixed flow fan and achieve reversible air supply through the mixed flow fan blades. This method has a high fan speed, large noise, low working efficiency, and the energy-saving effect does not meet the requirements. Moreover, both of the above two methods have problems such as large noise and small air volume, resulting in the energy-saving and comfort of the air conditioner not meeting the requirements and unable to achieve productization.

[0003] Especially for a cabinet-type air conditioner with a reversible air supply function, when the cabinet-type air conditioner achieves the reversible air supply effect by using the above two traditional reversible air supply means, due to the long air supply path and high height of the cabinet-type air conditioner, its air supply effect is more unsatisfactory when achieving reversible air supply. Summary of the Utility Model

[0004] The embodiment of the present application provides an axial flow fan assembly and an air conditioner. By enabling the fan module in the axial flow fan assembly to rotate integrally relative to the axial flow duct housing, it can ensure that no matter which side the fan module blows air towards, the axial flow fan blades in the fan module rotate forward, thereby effectively ensuring the air volume when the axial flow fan assembly blows air in different directions. Moreover, since the fan module can rotate integrally relative to the axial flow duct housing, the flipping diameter of the axial flow fan during flipping can be greatly reduced, so that when the axial flow fan assembly is installed in the air conditioner, the overall size of the air conditioner can be effectively reduced and the overall appearance coordination can be improved. Specifically:

[0005] The first aspect of the embodiment of the present application provides an axial flow fan assembly, including:

[0006] An axial flow duct housing, an air cavity is formed inside the axial flow duct housing, a first air outlet and a second air outlet communicating with the air cavity are formed at both axial ends, and a driving module installation position and a driven module installation position are formed circumferentially and are arranged opposite to each other;

[0007] A driving module and a driven module, the driving module is arranged at the driving module installation position, the driven module is arranged at the driven module installation position, the driving module includes a driving member rotatably arranged at the driving module installation position and a first motor for driving the driving member to rotate, the driven module includes a driven member rotatably arranged at the driven module installation position, and the rotation axis of the driven member and the rotation axis of the driving member are collinear;

[0008] The fan module includes a second motor, a motor fixing bracket, and an axial flow fan blade. The second motor is fixed on the motor fixing bracket, and the output shaft end of the second motor is connected to the rotation center of the axial flow fan blade, so that the second motor, the motor fixing bracket, and the axial flow fan blade are connected into an integral body. The integral fan module is built into the air cavity and is connected between the driving member and the driven member through the motor fixing bracket, so that the fan module, the driving member, and the driven member form a rotating module that can rotate relative to the axial flow duct housing.

[0009] When the driving member is driven to rotate, it can drive the fan module to flip around the rotation axis of the driving member through the motor fixing bracket, so that the air outlet side of the fan module can be switched from facing the first air outlet position to facing the second air outlet position, or the air outlet side of the fan module can be switched from facing the second air outlet position to facing the first air outlet position.

[0010] In the above technical solution, the driving member and the driven member include disk-shaped support frames rotatably arranged at corresponding installation positions.

[0011] The two ends of the motor fixing bracket in its length direction are respectively connected to the outer peripheral position of the driving member and the outer peripheral position of the driven member to fix the motor fixing bracket between the outer periphery of the driving member and the outer periphery of the driven member.

[0012] In the above technical solution, an auxiliary fixing bracket is also connected between the outer periphery of the driving member and the outer periphery of the driven member.

[0013] The auxiliary fixing bracket and the motor fixing bracket are symmetric about the horizontal plane where the rotation axis of the driving member is located.

[0014] The air outlet side of the axial flow fan blade faces the motor fixing bracket, and the air inlet side of the axial flow fan blade faces the auxiliary fixing bracket.

[0015] In the above technical solution, the motor fixing bracket and / or the auxiliary fixing bracket are constructed as strip-shaped frames, and at least part of the motor fixing bracket is designed with a hollow structure and / or at least part of the auxiliary fixing bracket is designed with a hollow structure.

[0016] In the above technical solution, the motor fixing bracket is constructed as a strip-shaped frame that is wide in the middle and narrow at both ends.

[0017] The second motor is installed in the middle part of the motor fixing bracket, and the two ends are respectively connected to the driving member and the driven member.

[0018] In the above technical solution, the driving module further includes a driving side bearing module, and the driving side bearing module is fixed at the driving module installation position and is rotationally matched with the driving member.

[0019] The driven module further includes a driven side bearing module, and the driven side bearing module is fixed at the driven module installation position and is rotationally matched with the driven member.

[0020] In the above technical solution, the driving-side bearing module includes a driving-side bearing, a driving-side bearing mounting plate, a first driving-side bearing pressing plate, and a second driving-side bearing pressing plate. The driving-side bearing is installed between the driving member and the driving-side bearing mounting plate. The first driving-side bearing pressing plate is fixed to the driving-side bearing mounting plate, and the second driving-side bearing pressing plate is fixed to the driving member.

[0021] The driven-side bearing module includes a driven-side bearing, a driven-side bearing mounting plate, a first driven-side bearing pressing plate, and a second driven-side bearing pressing plate. The driven-side bearing is installed between the driven member and the driven-side bearing mounting plate. The first driven-side bearing pressing plate is fixed to the driven-side bearing mounting plate, and the second driven-side bearing pressing plate is fixed to the driven member.

[0022] The driving module further includes a first motor cover. The first motor is fixed to the first motor cover, and the first motor cover is fixed to the driving-side bearing mounting plate, or the first driving-side bearing pressing plate, or the axial flow air duct housing.

[0023] In the above technical solution, a wire outlet hole is formed at the center position of the rotating shaft of the driven member. The wire outlet hole includes an inner hole end facing the inner side of the air cavity and an outer hole end facing the outer side of the air cavity. The wire harness of the second motor passes through the wire outlet hole from one side of the inner hole end and is placed on one side of the outer hole end of the driven member.

[0024] The driven module further includes a wire harness bundling module. The wire harness bundling module includes a bundling cover and a wire groove.

[0025] The bundling cover is used to clamp the motor wire harness placed on one side of the inner hole end between the driven member and the bundling cover, so as to separate the axial flow air blades and the motor wire harness through the bundling cover. The wire groove is used to wind the motor wire harness placed on one side of the outer hole end of the driven member on its surface, so as to accommodate the redundant motor wire harness located on one side of the outer hole end of the driven member.

[0026] In the above technical solution, a wire guiding groove is formed at one end of the motor fixing bracket close to the driven member.

[0027] The wire guiding groove is used to guide the wire harness with one end connected to the second motor to the position of the wire outlet hole of the driven member.

[0028] In the second aspect of the embodiments of the present application, an air conditioner is provided, which includes the axial flow fan assembly provided in the first aspect of the embodiments of the present application.

[0029] In the above technical solution, the air conditioner is a cabinet air conditioner. The top of the cabinet air conditioner has an upper air outlet, the bottom has a lower air outlet, and an air supply duct communicating the upper air outlet and the lower air outlet is formed inside.

[0030] The axial flow fan assembly is arranged in the air supply duct.

[0031] By controlling the rotation of the fan module, the cabinet air conditioner can form a single upper air supply mode with air intake from the lower air outlet and air discharge from the upper air outlet, or a single lower air supply mode with air intake from the upper air outlet and air discharge from the lower air outlet.

[0032] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0033] In the embodiment of the present application, by enabling the fan module in the axial flow fan assembly to rotate integrally relative to the axial flow air duct housing, it can be ensured that no matter which side the fan module discharges air, the axial flow fan blades in the fan module rotate forward, thereby effectively ensuring the air volume when the axial flow fan assembly discharges air in different directions. Moreover, since the fan module can rotate integrally relative to the axial flow air duct housing, the turning diameter of the axial flow fan during flipping can be greatly reduced, so that when the axial flow fan assembly is installed in the air conditioner, the overall size of the air conditioner can be effectively reduced, and the overall appearance coordination can be improved. Description of the Drawings

[0034] Figure 1 It is an exploded structural schematic diagram of the axial flow fan assembly in the embodiment of the present application;

[0035] Figure 2 It is a structural schematic diagram when the fan module and the axial flow air duct housing are assembled in the embodiment of the present application;

[0036] Figure 3 It is a structural schematic diagram after the fan module and the axial flow air duct housing are assembled in the embodiment of the present application Figure 1 ;

[0037] Figure 4 It is a structural schematic diagram after the fan module and the axial flow air duct housing are assembled in the embodiment of the present application Figure 2 ;

[0038] Figure 5 It is a sectional structural schematic diagram after the fan module and the axial flow air duct housing are assembled in the embodiment of the present application.

[0039] Wherein:

[0040] 100 - Axial flow air duct housing;

[0041] 200 - Drive module; 201 - Driving part; 202 - First motor; 203 - Drive side bearing module; 2031 - Drive side bearing; 2032 - Drive side bearing mounting plate; 2033 - First drive side bearing pressing plate; 2034 - Second drive side bearing pressing plate; 204 - First motor cover.

[0042] 300 - Driven module; 301 - Driven part; 302 - Driven side bearing module; 3021 - Driven side bearing; 3022 - Driven side bearing mounting plate; 3023 - First driven side bearing pressing plate; 3024 - Second driven side bearing pressing plate; 303 - Cable harness module; 3031 - Cable harness cover; 3032 - Cable fixing groove;

[0043] 400 - Second motor; 401 - Motor harness;

[0044] 500 - Motor fixing bracket; 501 - Wire groove;

[0045] 600 - Axial flow fan blade;

[0046] 700 - Auxiliary fixing bracket. Detailed implementation mode

[0047] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the 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 below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0048] Throughout the specification and claims, the following terms have at least the meanings specifically associated herein, unless the context otherwise requires. The meanings determined below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0049] In the description of the present utility model, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may. Similarly, as used herein, the phrase "in some embodiments", when used multiple times, does not necessarily refer to the same embodiment, although it may. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or", unless the context clearly dictates otherwise. The term "based on" is not exclusive and allows for additional factors not described, unless the context clearly dictates otherwise. The word "exemplary" herein means "serving as an example, instance, or illustration". Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of the present utility model is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed utility model. The various embodiments provided by the present utility model should not be construed as limiting the scope of protection of the present utility model.

[0050] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 utility model.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0052] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; 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 or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0054] Background Introduction

[0055] There are two ways to achieve reversible air supply in existing reversible air supply air conditioners. One is to set a reversible axial flow fan and control the forward and reverse rotation of the motor of the axial flow fan to achieve reversible air supply. This method has high requirements for the manufacturing cost of the motor, and the axial flow fan has problems such as short air supply distance and small air pressure. The other is to set a mixed flow fan and achieve reversible air supply through the mixed flow fan blade. This method has a high fan speed, large noise, low work efficiency, and the energy-saving effect does not meet the requirements. Moreover, both of the above two methods have problems such as large noise and small air volume, resulting in the energy saving and comfort of the air conditioner not meeting the requirements and unable to achieve productization.

[0056] Especially for cabinet air conditioners with reversible air supply function, when the cabinet air conditioner achieves the reversible air supply effect by adopting the above two traditional reversible air supply means, due to the long air supply path and high height of the cabinet air conditioner, the air supply effect is more unsatisfactory when achieving reversible air supply.

[0057] Based on this, as Figures 1 - 5 shown, in the first aspect of the embodiment of the present application, an axial flow fan assembly is provided, including:

[0058] An axial flow duct housing 100, an air cavity is formed inside the axial flow duct housing 100, a first air outlet and a second air outlet communicating with the air cavity are formed at both axial ends, and driving module installation positions and driven module installation positions are formed circumferentially and are arranged oppositely;

[0059] A driving module 200 and a driven module 300, the driving module 200 is arranged at the driving module installation position, the driven module 300 is arranged at the driven module installation position, the driving module 200 includes a driving member 201 rotatably arranged at the driving module installation position, and a first motor 202 for driving the driving member 201 to rotate, the driven module 300 includes a driven member 301 rotatably arranged at the driven module installation position, wherein the rotation axis of the driven member 301 and the rotation axis of the driving member 201 are collinear;

[0060] A fan module, the fan module includes a second motor 400, a motor fixing bracket 500 and an axial flow fan blade 600, the second motor 400 is fixed on the motor fixing bracket 500, and the output shaft end of the second motor 400 is connected to the rotation center of the axial flow fan blade 600, so that the second motor 400, the motor fixing bracket 500 and the axial flow fan blade 600 are connected into a whole. The fan module connected into a whole is built into the air cavity and is connected between the driving member 201 and the driven member 301 through the motor fixing bracket 500, so that the connected fan module, driving member 201 and driven member 301 form a rotating module capable of rotating relative to the axial flow duct housing 100;

[0061] When the driving member 201 is driven to rotate, it can drive the fan module to flip around the rotation axis of the driving member 201 through the motor fixing bracket 500, so that the air outlet side of the fan module can be switched from facing the first air outlet position to facing the second air outlet position, or the air outlet side of the fan module can be switched from facing the second air outlet position to facing the first air outlet position.

[0062] In the embodiment of the present application, by enabling the fan module in the axial flow fan assembly to rotate integrally relative to the axial flow air duct housing 100, it can be ensured that no matter which side the fan module blows air towards, the axial flow fan blades 600 in the fan module rotate forward, thus effectively ensuring the air volume when the axial flow fan assembly blows air in different directions. Moreover, since the fan module can rotate integrally relative to the axial flow air duct housing 100, the flipping diameter of the axial flow fan during flipping can be greatly reduced, so that when the axial flow fan assembly is installed in an air conditioner, the overall size of the air conditioner can be effectively reduced, and the overall appearance coordination of the air conditioner can be improved.

[0063] Specifically, as Figure 3 and Figure 4 shown, when it is necessary to adjust the air outlet direction of the axial flow fan assembly, control the first motor 202 to rotate forward or backward. The first motor 202 drives the driving member 201 to rotate. When the driving member 201 rotates, it drives the motor fixing bracket 500 to rotate, thereby driving the second motor 400 and the axial flow fan blades 600 on the motor fixing bracket 500 to rotate. The second motor 400, the motor fixing bracket 500, and the axial flow fan blades 600, as an integral fan module, rotate relative to the axial flow air duct housing 100, thus realizing the switching of the air outlet direction of the axial flow fan assembly.

[0064] Furthermore, in some possible implementation manners, the driving member 201 and the driven member 301 are disk-shaped support frames rotatably arranged at corresponding installation positions;

[0065] Both ends of the motor fixing bracket 500 in its length direction are respectively connected to the outer peripheral edge positions of the driving member 201 and the driven member 301 to fix the motor fixing bracket 500 between the outer peripheral edge of the driving member 201 and the outer peripheral edge of the driven member 301.

[0066] In the embodiment of the present application, by setting the driving member 201 and the driven member 301 in a disk shape, it is convenient for the installation and rotation of the driving member 201 and the driven member 301. At the same time, by setting the motor fixing bracket 500 at the edge positions of the driving member 201 and the driven member 301, a certain distance can be maintained between the axial flow fan blades 600 and the motor fixing bracket 500, thus avoiding the influence on the air outlet effect of the fan blades due to the too close distance between the axial flow fan blades 600 and the motor fixing bracket 500.

[0067] Furthermore, in some possible implementation manners, as Figures 1 - 5As shown, an auxiliary fixing frame 700 is also connected between the outer peripheral edge of the driving member 201 and the outer peripheral edge of the driven member 301;

[0068] wherein the auxiliary fixing frame 700 and the motor fixing frame 500 are symmetric about the horizontal plane where the rotation axis of the driving member 201 is located;

[0069] wherein the air outlet side of the axial flow fan blade 600 faces the motor fixing frame 500, and the air inlet side of the axial flow fan blade 600 faces the auxiliary fixing frame 700.

[0070] In the embodiment of the present application, by arranging the auxiliary fixing frame 700 between the driving member 201 and the driven member 301, the stability of the fan module during overall rotation can also be improved, and the problems of distortion and deformation of the motor fixing frame 500, the driving member 201, and the driven member 301 caused by the flipping of the axial flow fan blade 600 can be prevented.

[0071] In addition, in the embodiment of the present application, by connecting the auxiliary fixing frame 700 to the edge positions of the driving member 201 and the driven member 301, and setting the air inlet side of the axial flow fan blade 600 to face the auxiliary fixing frame 700 and the air outlet side of the axial flow fan blade 600 to face the motor fixing frame 500, on the one hand, the motor fixing frame 500 and the auxiliary fixing frame 700 connected between the edge positions of the driving member 201 and the driven member 301 will not affect the air inlet and outlet effects of the axial flow fan blade 600 due to being relatively close to the axial flow fan blade 600. On the other hand, by setting the motor fixing frame 500 with the second motor 400 to be opposite to the air outlet side of the axial flow fan blade 600, the air outlet airflow of the axial flow fan can be used to dissipate heat from the second motor 400 and blow off the dust attached to the second motor 400.

[0072] Further, as Figures 1 - 5 shown, the motor fixing frame 500 and / or the auxiliary fixing frame 700 are configured as strip-shaped frames, and at least part of the motor fixing frame 500 is designed with a hollow and / or at least part of the auxiliary fixing frame 700 is designed with a hollow.

[0073] Preferably, both the motor fixing frame 500 and the auxiliary fixing frame 700 are set as strip-shaped frames. In the embodiment of the present application, by setting both the motor fixing frame 500 and the auxiliary fixing frame 700 as strip-shaped frames, the excessive influence on the air inlet and outlet volume of the fan assembly caused by the setting of the motor fixing frame 500 and the auxiliary fixing frame 700 can be avoided. Preferably, the projection of the motor fixing frame 500 and the auxiliary fixing frame 700 in the air supply direction accounts for 7%-10% of the air outlet area of the axial flow fan assembly.

[0074] Further, in some possible implementation manners, as Figures 1 - 5 shown, the motor fixing frame 500 is configured as a strip-shaped frame that is wide in the middle and narrow at both ends;

[0075] A second motor 400 is installed in the middle part of the motor fixing bracket 500, and the two ends are respectively connected to the driving member 201 and the driven member 301.

[0076] In the embodiment of the present application, the motor fixing bracket 500 is set as a strip-shaped bracket that is wide in the middle and narrow at both ends. On the one hand, the middle position of the motor fixing bracket 500 is set to be wider to facilitate the installation of the second motor 400. On the other hand, setting the two ends of the motor fixing bracket 500 to be narrower can also avoid having a greater impact on the air output of the fan assembly.

[0077] Furthermore, in some possible implementation manners, such as Figures 1 - 5 As shown, the driving module 200 further includes a driving side bearing module 203. The driving side bearing module 203 is fixed at the driving module installation position and is rotationally matched with the driving member 201;

[0078] The driven module 300 further includes a driven side bearing module 302. The driven side bearing module 302 is fixed at the driven module installation position and is rotationally matched with the driven member 301.

[0079] That is, the driving member 201 and the driven member 301 in the embodiment of the present application are rotationally arranged on the outer peripheral side of the axial flow air duct housing 100 through their respective bearing modules.

[0080] Specifically, in some possible implementation manners, such as Figures 1 - 5 As shown, the driving side bearing module 203 includes a driving side bearing 2031, a driving side bearing mounting plate 2032, a driving side bearing pressing plate one 2033, and a driving side bearing pressing plate two 2034. The driving side bearing 2031 is installed between the driving member 201 and the driving side bearing mounting plate 2032. The driving side bearing pressing plate one 2033 is fixed to the driving side bearing mounting plate 2032, and the driving side bearing pressing plate two 2034 is fixed to the driving member 201;

[0081] The driven side bearing module 302 includes a driven side bearing 3021, a driven side bearing mounting plate 3022, a driven side bearing pressing plate one 3023, and a driven side bearing pressing plate two 3024. The driven side bearing 3021 is installed between the driven member 301 and the driven side bearing mounting plate 3022. The driven side bearing pressing plate one 3023 is fixed to the driven side bearing mounting plate 3022, and the driven side bearing pressing plate two 3024 is fixed to the driven member 301;

[0082] The driving module 200 further includes a first motor cover 204. The first motor 202 is fixed on the first motor cover 204, and the first motor cover 204 is fixed on the driving side bearing mounting plate 2032 or the driving side bearing pressing plate one 2033 or the axial flow air duct housing 100.

[0083] Specifically, when the drive module 200 is pre-installed: First, the drive-side bearing 2031 is assembled between the drive member 201 and the drive-side bearing mounting plate 2032. Then, the drive-side bearing pressing plate one 2033 is installed in sequence and fixed to the drive-side bearing mounting plate 2032 through screw or snap fit; the drive-side bearing pressing plate two 2034 is fixed to the drive member 201 through screw or snap fit to limit the axial movement of the drive-side bearing 2031, so that the drive-side bearing 2031 can only rotate circumferentially. After the first motor 202 {preferably, the first motor is a stepping motor} is fixed to the first motor cover 204 through screws, the motor shaft is fitted with the rotation center hole of the drive member 201, and the first motor cover 204 is fixed to the drive-side bearing mounting plate 2032 or the drive-side bearing pressing plate one 2033 through screw fixation. When the axial flow fan blade 600 flips, the drive-side bearing mounting plate 2032, the drive-side bearing pressing plate one 2033, the first motor 202, and the first motor cover 204 do not rotate with the axial flow fan blade 600. Therefore, the first motor cover 204 can be fixed to the drive-side bearing mounting plate 2032 or the drive-side bearing pressing plate one 2033, and at the same time, the axial flow air duct housing 100 does not rotate. It should be noted that if the structural space is sufficient, the first motor cover 204 can also be fixed to the axial flow air duct housing 100.

[0084] More specifically, when the driven module 300 is pre-installed, first, the driven-side bearing 3021 is assembled between the driven member 301 and the driven-side bearing mounting plate 3022. Then, the driven-side bearing pressing plate one 3023 is installed in sequence and fixed to the driven-side bearing mounting plate 3022 through screw or snap fit; the driven-side bearing pressing plate two 3024 is fixed to the driven member 301 through screw or snap fit to limit the axial movement of the driven-side bearing 3021, so that the bearing can only rotate circumferentially.

[0085] Finally, the pre-installed drive module 200 and driven module 300 are sequentially fixed to both sides of the axial flow air duct housing 100 through screws or snaps, and then the pre-installed fan module is assembled. The motor fixing bracket 500 in the fan module is fastened to the drive member 201 and the driven member 301 through screws.

[0086] Furthermore, in some possible implementation manners, as Figures 1 - 5 shown, a wire outlet hole 3011 is provided at the center position of the rotating shaft of the driven member 301. The wire outlet hole 3011 includes a hole inner end facing the inner side of the air cavity and a hole outer end facing the outer side of the air cavity. The wire harness 401 of the second motor 400 passes through the wire outlet hole 3011 from one side of the hole inner end and is placed on one side of the hole outer end of the driven member 301;

[0087] The driven module 300 further includes a wire bundling module 303. The wire bundling module 303 includes a wire bundling cover 3031 and a wire fixing groove 3032;

[0088] Among them, the wire harness cover 3031 is used to clamp the motor wire harness 401 placed on one side of the inner end of the hole between the driven member 301 and the wire harness cover 3031, so as to separate the axial flow fan blade 600 and the motor wire harness 401 through the wire harness cover 3031. The wire harness fixing groove 3032 is used to wind the motor wire harness 401 placed on one side of the outer end of the hole of the driven member 301 on its surface, so as to accommodate the redundant motor wire harness 401 located on one side of the outer end of the hole of the driven member 301. Preferably, the wire harness fixing coil 3032 is fixed to the driven side bearing pressure plate 1 3023 or the driven side bearing mounting plate 3022 by screws. The function of the wire harness fixing coil 302 is to fix the power wire harness 401 of the second motor 400 and prevent the power wire harness 401 from being wound due to the flipping of the axial flow fan blade module.

[0089] Specifically, when assembling the fan module, first pass the power wire harness 401 of the second motor 400 through the wire outlet hole in the center of the driven member 301 and fasten the wire harness cover 3031. The function of the wire harness cover 3031 is to clamp the power wire harness 401 between the driven member 301 and the wire harness cover 3031 to prevent the axial flow fan blade 600 from rotating and cutting the power wire harness 401 during operation. After the fan module is pre-assembled, then wind the power wire harness 401 around the wire harness fixing coil 3032 to avoid the problem of the power wire harness 401 being wound due to the flipping of the axial flow fan blade 600.

[0090] Furthermore, in some possible implementation manners, as Figures 1 - 5 shown, a wire guiding groove 501 is formed at one end of the motor fixing bracket 500 close to the driven member 301;

[0091] Among them, the wire guiding groove 501 is used to guide the wire harness 401 with one end connected to the second motor 400 to the position of the wire outlet hole of the driven member 301.

[0092] In the embodiment of the present application, by providing the wire guiding groove 501 on the motor fixing bracket 500, on the one hand, it is convenient for the wire harness 401 to pass through the wire outlet hole 3011 of the driven member 301, and on the other hand, it can also limit the wire harness 401 to avoid interference between the wire harness 401 and the axial flow fan blade 600.

[0093] Furthermore, in the second aspect of the embodiment of the present application, an air conditioner is further provided, which includes the axial flow fan assembly provided in the first aspect of the embodiment of the present application.

[0094] Furthermore, in some implementation manners not shown in the drawings, the air conditioner is a cabinet air conditioner. The cabinet air conditioner has an upper air inlet at the top, a lower air outlet at the bottom, and an air supply duct communicating the upper air inlet and the lower air outlet formed inside;

[0095] The axial flow fan assembly is arranged in the air supply duct;

[0096] By controlling the rotation of the fan module, the floor-mounted air conditioner can form a single upward air supply mode with air intake from the lower air outlet and air discharge from the upper air outlet, or a single downward air supply mode with air intake from the upper air outlet and air discharge from the lower air outlet.

[0097] It should be noted that the air supply outlet of a traditional floor-mounted air conditioner is set at the top of the air conditioner, and its installation position is relatively high. When cooling in summer and sending cold air, the jet can quickly reach above the human activity area. Then, using the fact that the cold air flow has a large density and can naturally sink, rapid cooling and a small blowing feeling can be achieved, taking into account both the temperature drop and comfort effect. At the same time, since the air return outlet is located at the lower part of the air conditioner, the return air temperature is about 2°C lower than that in the middle and upper parts. Compared with the middle and upper part air return, the energy-saving effect is better. However, when heating in winter and sending hot air, due to the principle of hot air floating, the hot jet cannot come down in the upper part of the room, resulting in a phenomenon of hot in the upper part and cold in the lower part. At this time, only the return air temperature in the lower part is about 2°C lower than that in the middle and upper parts. Compared with the middle and upper part air return, more energy needs to be consumed to reach the same air supply temperature, and the energy-saving effect is poor. The energy conservation, emission reduction, and comfort experience of an air conditioner with a fixed air supply and air return position in different cooling / heating working conditions cannot reach the best at the same time. Therefore, the traditional one-way air inlet and outlet circulation method cannot take into account both the energy conservation and comfort requirements of cooling and heating.

[0098] The floor-mounted air conditioner provided in the second aspect of the embodiment of the present application can, by arranging the axial flow fan assembly provided in the first aspect of the embodiment of the present application in its internal air duct, when cooling in summer, make the air flow enter from the lower air outlet at the bottom of the air conditioner and discharge through the upper air outlet at the top, so that the cold air flow can quickly reach above the human activity area. Then, using the fact that the cold air flow has a large density and can naturally sink, rapid cooling and a small blowing feeling can be achieved, taking into account both the temperature drop and comfort effect. At the same time, at this time, the lower air outlet at the lower part of the air conditioner serves as the air return outlet, and the return air temperature is about 2°C lower than that in the middle and upper parts. Compared with the middle and upper part air return, the energy-saving effect is better.

[0099] Similarly, when heating in winter and sending hot air, the fan module in the axial flow fan assembly can be controlled to flip 180°, so that the air flow enters from the upper air outlet at the top of the air conditioner and discharges through the lower air outlet at the bottom. Due to the principle that hot air has a small density and floats, the hot air flow discharged from the bottom of the air conditioner can gradually fill the entire room from bottom to top, also taking into account both the temperature rise and comfort effect. At the same time, at this time, the upper air outlet at the upper part of the air conditioner serves as the air return outlet, and the return air temperature is about 2°C higher than that in the middle and lower parts. Compared with the middle and upper part air return, the energy-saving effect is better.

[0100] It should be noted that since the cabinet air conditioner provided in the second aspect of the embodiments of the present application adopts the axial flow fan assembly provided in the first aspect of the embodiments of the present application, the cabinet air conditioner can not only achieve the single upper air outlet effect and the single lower air outlet effect, but also the air volume of the cabinet air conditioner during single upper air outlet or single lower air supply will not be affected. It is worth noting that when the existing air conditioner realizes the switching between single upper air outlet and single lower air outlet, it usually controls the axial flow fan blade to reverse the air outlet. However, this control method will cause the air outlet efficiency of the axial flow fan blade to be relatively low after reversal, and the air volume loss during reverse air outlet is about 20% compared with the forward rotation air outlet.

[0101] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The steps shown in the relevant flowcharts can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in a different order than here. In other words, the step order described in the foregoing embodiments is only an example, and a reasonable adjustment of the step order based on the content of the embodiments of the present application is also within the protection scope of the embodiments of the present application.

[0102] The serial numbers or the order of introduction of the embodiments of the present application are only for description and do not represent the superiority or inferiority of the embodiments.

[0103] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", 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 representations 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. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0104] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An axial flow fan assembly, characterized in that, Comprising: An axial flow air duct housing (100), an air cavity is formed inside the axial flow air duct housing (100), a first air outlet and a second air outlet communicating with the air cavity are formed at both axial ends, and driving module mounting positions and driven module mounting positions are formed circumferentially and are arranged oppositely; A driving module (200) and a driven module (300), the driving module (200) is arranged at the driving module mounting position, the driven module (300) is arranged at the driven module mounting position, the driving module (200) includes a driving member (201) rotatably arranged at the driving module mounting position, and a first motor (202) for driving the driving member (201) to rotate, the driven module (300) includes a driven member (301) rotatably arranged at the driven module mounting position, wherein the rotation axis of the driven member (301) and the rotation axis of the driving member (201) are collinear; A fan module, the fan module includes a second motor (400), a motor fixing bracket (500) and an axial flow fan blade (600), the second motor (400) is fixed on the motor fixing bracket (500), and the output shaft end of the second motor (400) is connected to the rotation center of the axial flow fan blade (600), so that the second motor (400), the motor fixing bracket (500) and the axial flow fan blade (600) are connected into a whole. The fan module connected into a whole is built in the air cavity and is connected between the driving member (201) and the driven member (301) through the motor fixing bracket (500), so that the fan module, the driving member (201) and the driven member (301) form a rotating module capable of rotating relative to the axial flow air duct housing (100); Wherein when the driving member (201) is driven to rotate, it can drive the fan module to flip around the rotation axis of the driving member (201) through the motor fixing bracket (500), so that the air outlet side of the fan module can be switched from facing the position of the first air outlet to facing the position of the second air outlet, or the air outlet side of the fan module can be switched from facing the position of the second air outlet to facing the position of the first air outlet.

2. The axial flow fan assembly according to claim 1, wherein The driving member (201) and the driven member (301) include disc-shaped support frames rotatably arranged at corresponding mounting positions; Wherein both ends of the motor fixing bracket (500) in its length direction are respectively connected to the outer peripheral position of the driving member (201) and the outer peripheral position of the driven member (301), so as to fix the motor fixing bracket (500) between the outer periphery of the driving member (201) and the outer periphery of the driven member (301).

3. The axial flow fan assembly according to claim 2, wherein, An auxiliary fixing bracket (700) is also connected between the outer periphery of the driving member (201) and the outer periphery of the driven member (301); Wherein the auxiliary fixing bracket (700) and the motor fixing bracket (500) are symmetric about the horizontal plane where the rotation axis of the driving member (201) is located; The air outlet side of the axial flow fan blade (600) faces the motor fixing bracket (500), and the air inlet side of the axial flow fan blade (600) faces the auxiliary fixing bracket (700).

4. The axial flow fan assembly according to claim 3, wherein The motor fixing bracket (500) and / or the auxiliary fixing bracket (700) is / are configured as a strip-shaped bracket, and at least part of the motor fixing bracket (500) is designed with a hollow structure and / or at least part of the auxiliary fixing bracket (700) is designed with a hollow structure.

5. The axial flow fan assembly according to claim 1, characterized in that, The motor fixing bracket (500) is configured as a strip-shaped bracket that is wide in the middle and narrow at both ends; The second motor (400) is installed in the middle part of the motor fixing bracket (500), and the two ends are respectively connected to the driving member (201) and the driven member (301).

6. The axial flow fan assembly according to any one of claims 1-5, characterized in that The driving module (200) further includes a driving side bearing module (203), and the driving side bearing module (203) is fixed at the driving module installation position and is rotationally matched with the driving member (201); The driven module (300) further includes a driven side bearing module (302), and the driven side bearing module (302) is fixed at the driven module installation position and is rotationally matched with the driven member (301).

7. The axial flow fan assembly according to claim 6, characterized in that The driving side bearing module (203) includes a driving side bearing (2031), a driving side bearing mounting plate (2032), a first driving side bearing pressing plate (2033) and a second driving side bearing pressing plate (2034). The driving side bearing (2031) is installed between the driving member (201) and the driving side bearing mounting plate (2032). The first driving side bearing pressing plate (2033) is fixed to the driving side bearing mounting plate (2032), and the second driving side bearing pressing plate (2034) is fixed to the driving member (201); The driven side bearing module (302) includes a driven side bearing (3021), a driven side bearing mounting plate (3022), a first driven side bearing pressing plate (3023) and a second driven side bearing pressing plate (3024). The driven side bearing (3021) is installed between the driven member (301) and the driven side bearing mounting plate (3022). The first driven side bearing pressing plate (3023) is fixed to the driven side bearing mounting plate (3022), and the second driven side bearing pressing plate (3024) is fixed to the driven member (301); The driving module (200) further includes a first motor cover (204), the first motor (202) is fixed on the first motor cover (204), and the first motor cover (204) is fixed on the driving side bearing mounting plate (2032) or the first driving side bearing pressing plate (2033) or the axial flow air duct housing (100).

8. The axial flow fan assembly according to any one of claims 1-5, characterized in that A wire outlet hole (3011) is formed at the center position of the rotating shaft of the follower (301). The wire outlet hole (3011) includes an inner hole end facing the inner side of the air cavity and an outer hole end facing the outer side of the air cavity. The motor wire harness (401) of the second motor (400) passes through the wire outlet hole (3011) from one side of the inner hole end and is placed on one side of the outer hole end of the follower (301). The follower module (300) further includes a wire bundling module (303). The wire bundling module (303) includes a wire bundling cover (3031) and a wire fixing groove (3032). The wire bundling cover (3031) is used to clamp the motor wire harness (401) placed on one side of the inner hole end between the follower (301) and the wire bundling cover (3031), so as to separate the axial flow fan blade (600) and the motor wire harness (401) through the wire bundling cover (3031). The wire fixing groove (3032) is used to wind the motor wire harness (401) placed on one side of the outer hole end of the follower (301) on its surface, so as to accommodate the redundant motor wire harness (401) located on one side of the outer hole end of the follower (301).

9. The axial flow fan assembly according to claim 8, wherein, A wire guiding groove (501) is formed at one end of the motor fixing bracket (500) close to the follower (301). The wire guiding groove (501) is used to guide the motor wire harness (401) with one end connected to the second motor (400) to the position of the wire outlet hole of the follower (301).

10. An air conditioner, characterized in that, An axial flow fan assembly according to any one of claims 1-9 is included.

11. The air conditioner according to claim 10, characterized in that, The air conditioner is a cabinet air conditioner. The top of the cabinet air conditioner has an upper air inlet, the bottom has a lower air outlet, and an air supply duct communicating the upper air inlet and the lower air outlet is formed inside. The axial flow fan assembly is arranged in the air supply duct. By controlling the rotation of the fan module, the cabinet air conditioner can form a single upper air supply mode with air inlet from the lower air outlet and air outlet from the upper air inlet, or a single lower air supply mode with air inlet from the upper air inlet and air outlet from the lower air outlet.

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