Air supply device

Abstract

The invention provides an air supply device. The air supply device comprises a motor; the rotating axis of the fan blade assembly coincides with the axis of the output shaft of the motor; the two ends of the transmission device are connected with the fan blade assembly and an output shaft of the motor correspondingly, so that the transmission device is driven by the motor to operate and drive the fan blade assembly to rotate, and the fan blade assembly and the motor are detachably connected through the transmission device; the transmission device can drive the fan blade assembly to rotate through magnetic force. According to the technical scheme, when the fan blade assembly needs to be replaced or detached, the fan blade assembly and the part, arranged on the fan blade assembly, of the transmission device are taken down together, so that the transmission device and the fan blade assembly are detached conveniently, and cleaning is convenient.

Description

[0001] This application is a divisional application of the Chinese patent application with application number 201910785862.2 and invention name “Air Supply Device”, which was submitted to the State Intellectual Property Office of China on August 23, 2019. Technical Field

[0002] The present invention relates to the technical field of fans, and in particular to an air supply device. Background Art

[0003] At present, in the prior art, conventional fans are composed of a stator and a rotor that are nested inside and outside each other. When the fan rotates, the fan blades are usually driven to rotate by the rotating shaft. Therefore, due to the limitation of the structure of the motor itself, the size of the entire product in the axial direction will be increased. In addition, when the fan blades of the existing fan are stained or dusty, the motor drives the fan blades to rotate and blows the pollutants on the fan blades into the air, polluting the air. If the fan needs to be cleaned, the disassembly and assembly of the motor and the fan blades is relatively cumbersome. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] In view of this, one object of the present invention is to provide an air supply device.

[0006] In order to achieve at least one of the above-mentioned purposes, according to the technical solution of the present invention, an air supply device is proposed, including: a motor; a fan blade assembly, the rotation axis of the fan blade assembly coincides with the axis of the output shaft of the motor; a transmission device, the two ends of the transmission device are respectively connected to the fan blade assembly and the output shaft of the motor, so that the transmission device is driven by the motor to operate and drive the fan blade assembly to rotate, wherein the fan blade assembly and the motor are detachably connected through the transmission device, and the transmission device can drive the fan blade assembly to rotate by magnetic force.

[0007] According to the air supply device proposed by the present invention, the two ends of the transmission device are respectively connected to the fan blade assembly and the output shaft of the motor, so that when the output shaft of the motor rotates, the fan blade assembly is driven to rotate through the transmission device, so that air flows from one side of the fan blade assembly to the other side, and the rotation axis of the fan blade assembly coincides with the axis of the output shaft of the motor, so that the output shaft of the motor is set corresponding to the rotation axis of the fan blade assembly, and the transmission device can drive the fan blade assembly to rotate through magnetic force, so that the fan blade assembly is driven by magnetic force, and the transmission connection between the motor and the fan blade assembly is indirectly realized through the transmission device. When the fan blade assembly needs to be replaced or removed, the fan blade assembly can be removed together with the part of the transmission device arranged on the fan blade assembly, so as to facilitate the disassembly of the transmission device and the fan blade assembly and facilitate cleaning. In addition, since the fan blade assembly can be removed by the motor alone, the removed fan blade assembly is not electrically charged as a whole, so it can be directly placed in water or cleaning liquid for cleaning.

[0008] The output shaft of a motor can be connected to two or more fan blade assemblies through a transmission device, so that multiple fan blade assemblies can be driven by one motor.

[0009] Among them, a fan blade assembly can be connected to the output shafts of multiple motors through a transmission device, so that the fan blade assembly can be driven to rotate by the multiple motors.

[0010] In the above technical scheme, the transmission device specifically includes: an active part, including multiple first magnetic parts, and the active part is arranged on the output shaft of the motor; a driven part, which is detachably connected to the active part, and the driven part includes multiple second magnetic parts arranged on the fan blade assembly. The multiple second magnetic parts are driven to rotate by the magnetic force of the first magnetic part, thereby driving the rotation of the fan blade assembly to realize the magnetic drive of the transmission device, wherein there is an axial gap between the active part and the driven part, and the polarities of any two adjacent first magnetic parts are different, and the polarities of any two adjacent second magnetic parts are different.

[0011] In this technical solution, multiple first magnetic members are arranged on the output shaft of the motor, and multiple second magnetic members are arranged on the fan blade assembly. When the output shaft of the motor rotates, the multiple first magnetic members arranged on the output shaft of the motor rotate together with the output shaft of the motor, and the first magnetic members drive the multiple second magnetic members to rotate through the mutual magnetic attraction and / or repulsion force, thereby driving the rotation of the fan blade assembly. Specifically, the polarities of any two adjacent first magnetic members are different and the polarities of any two adjacent second magnetic members are different, so that when the first magnetic member rotates with the output shaft of the motor, the multiple first magnetic members move relative to the multiple second magnetic members, so that the interaction force between the first magnetic member and the second magnetic member alternately converts between attraction and repulsion, so that through the relative movement between the first magnetic member and the second magnetic member, the first magnetic member generates a continuous driving force in the same direction on the second magnetic member to drive the rotation of the second magnetic member.

[0012] It should be noted that the multiple first magnetic parts drive the second magnetic parts through the magnetic interaction force, avoiding the contact between the active part and the driven part. On the one hand, it is conducive to the direct removal of the fan blade assembly as a whole from the motor. On the other hand, since there is no physical contact, it can also reduce the noise of the air supply device during operation.

[0013] In the above technical solution, the active component further includes: a rotating bracket, which is sleeved on the output shaft of the motor, and a plurality of first magnetic components are arranged along the circumference of the rotating bracket.

[0014] In this technical solution, a rotating bracket is arranged on the output shaft of the motor, and a plurality of first magnetic components are arranged on the rotating bracket along the axial direction of the rotating bracket, so that the plurality of first magnetic components are fixedly connected to the output shaft of the motor, so that the rotation of the output shaft of the motor drives the rotation of the plurality of first magnetic components.

[0015] In the above technical solution, a plurality of first installation grooves extending along the axial direction of the rotating bracket are provided on the rotating bracket, and the first magnetic members are correspondingly arranged in the first installation grooves.

[0016] In this technical solution, by arranging the first magnetic component in an installation groove extending along the axial direction of the rotating bracket, the first magnetic component can be arranged along the axial direction of the rotating bracket, and the rotation of the installation bracket is driven by the output shaft of the motor to drive the rotation of the first magnetic component. In addition, the first magnetic component can extend along the axial direction of the rotating bracket to increase the interaction force between the first magnetic component and the second magnetic component during relative movement, thereby improving the driving efficiency.

[0017] In the above technical solution, a plurality of first installation grooves extending along the radial direction of the rotating bracket are provided on the rotating bracket, and the first magnetic members are correspondingly arranged in the first installation grooves.

[0018] In this technical solution, a plurality of mounting grooves extending in the radial direction of the bracket are provided on the rotating bracket, and the first magnetic component is arranged in the mounting groove. The rotation of the mounting bracket is driven by the output shaft of the motor to drive the rotation of the first magnetic component. In addition, the first magnetic component can extend in the radial direction of the rotating bracket to increase the interaction force between the first magnetic component and the second magnetic component during relative movement, thereby improving the driving efficiency.

[0019] In the above technical solution, the active member further includes: at least one first limiting member, each first limiting member is arranged on an end surface of the rotating bracket to limit the axial displacement of the first magnetic member in the installation groove through the first limiting member.

[0020] In this technical solution, a first limit member is provided on the end face of the rotating bracket to limit the axial movement of the first magnetic member in the mounting groove. Specifically, the number of the first limit member can be one, which is detachably connected to one end of the rotating bracket. The number of the first limit member can also be two, which are respectively provided at the two ends of the rotating bracket. On the one hand, the axial movement of the first magnetic member in the mounting groove is limited. On the other hand, the detachable connection of the first limit member facilitates the installation of the first magnetic member.

[0021] It should be noted that when the number of the first limiting member is one, a limiting portion protruding radially along the rotating bracket can be provided at the end of the rotating bracket away from the first limiting member to limit the movement of the first magnetic member in the installation groove along the axial direction.

[0022] In the above technical solution, the fan blade assembly specifically includes: a fan blade; a rotating assembly, the fan blade is fixedly connected to the rotating assembly, the driven member is arranged on the rotating assembly, and a plurality of second magnetic members are arranged along the circumference of the rotating assembly.

[0023] In this technical solution, the fan blade assembly specifically includes a fan blade and a rotating assembly, wherein, by arranging a follower on the rotating assembly, and the fan blade is fixedly connected to the rotating assembly, when the follower rotates under the drive of the active member, the rotating assembly rotates with the follower, so that the fan blade rotates with the rotating assembly to drive the air to move from one side of the fan blade to the other side, and multiple second magnetic parts are arranged along the circumference of the rotating assembly, so that when multiple first magnetic parts rotate under the drive of the output shaft of the motor, the first magnetic parts apply a continuous magnetic force in the same direction to the second magnetic parts to drive the multiple second magnetic parts to rotate, thereby driving the fan blade assembly to rotate.

[0024] In the above technical solution, the rotating assembly includes: a rotating disk, a driven member is arranged along the circumference of the rotating disk, and a driving member is arranged on the inner side of the rotating disk in the radial direction; a rotating shaft is arranged at one end of the rotating disk away from the driving member, the fan blades are fixedly connected to the rotating shaft, and the driven member is fixedly connected to the rotating shaft, so that the driven member drives the rotating shaft to rotate through the drive of the driving member.

[0025] In this technical solution, the rotating assembly includes a rotating disk and a rotating shaft, and a driven member is arranged along the circumference of the rotating disk, and a driving member is arranged on the inner side of the rotating disk in the radial direction, so that the driven member is driven to rotate through the rotation of the driving member, wherein the rotating shaft is arranged at one end of the rotating disk away from the driving member, the fan blades are fixedly connected to the rotating shaft, and the driven member is fixedly connected to the rotating shaft, so that the rotating shaft and the fan blades are driven to rotate by the driving member.

[0026] In the above technical solution, a rotating hole corresponding to the rotating shaft is provided on the fan blade, and the end of the rotating shaft away from the active member passes through the rotating hole. The fan blade assembly also includes: a locking member, which is threadedly connected to the rotating shaft to limit the axial displacement of the fan blade on the rotating shaft through the locking member.

[0027] In this technical solution, a rotating hole corresponding to the rotating shaft is provided on the fan blade so that the rotating shaft can pass through the rotating hole. A locking piece is threadedly connected to the rotating shaft at the other end of the fan blade to achieve a fixed connection between the rotating shaft and the fan blade, thereby limiting the axial movement of the fan blade on the rotating shaft.

[0028] In the above technical solution, a plurality of second installation grooves extending along the axial direction of the rotating disk are provided on the rotating disk, and the second magnetic members are correspondingly arranged in the second installation grooves.

[0029] In this technical solution, a plurality of second mounting grooves extending along the axial direction of the rotating disk are provided on the rotating disk, and the second magnetic member is correspondingly arranged in the second mounting groove, so that when the first magnetic member rotates, the second magnetic member is driven to rotate, thereby driving the rotating disk to rotate.

[0030] In the above technical solution, the outer side surface size of the second magnetic component is larger than the inner side surface size; the inner wall surface of the second mounting groove is provided with an opening, and the shape of the second mounting groove is adapted to the second magnetic component to limit the radial displacement of the second magnetic component through the second mounting groove.

[0031] In this technical solution, the outer side dimension of the second magnetic component is larger than the inner side dimension, and the shape of the second mounting groove is adapted to the second magnetic component, so that the radial movement of the second magnetic component relative to the second magnetic component is limited by the cooperation between the three inner walls of the second mounting groove and the second magnetic component.

[0032] In the above technical solution, the rotating assembly further includes: at least one second limiting member, each second limiting member is arranged on an end surface of the rotating disk, so as to limit the axial displacement of the second magnetic member in the second installation groove through the second limiting member.

[0033] In this technical solution, at least one second limiting member is provided on one end face of the turntable, so that the axial displacement of the second magnetic member in the second mounting groove is limited by the second limiting member. It should be noted that each second magnetic member is offset against the second limiting member to limit the axial displacement of the second magnetic member in the second mounting groove.

[0034] In the above technical solution, the rotating assembly further comprises: a rotating end cover detachably connected to one end of the rotating disk away from the active member, and a rotating shaft fixedly connected to one end of the rotating end cover away from the active member.

[0035] In this technical solution, a rotating end cover is provided at the end of the rotating disk away from the active part, so that the axial movement of the first magnetic part in the first installation groove is limited by the end cover, wherein the rotating end cover is detachably connected to the rotating disk to facilitate the installation of the first magnetic part, and the rotating shaft is fixedly connected to the end of the rotating end cover away from the active part to drive the rotating end cover and the active part to rotate through the rotating shaft.

[0036] In the above technical solution, the fan blade assembly specifically includes: a fan blade, which is a hollow structure, and a driven member is arranged on the inner wall or the outer wall of the fan blade; and a supporting structure, on which the fan blade is rotatably arranged.

[0037] In this technical solution, the fan blade is a hollow structure, and the follower is arranged on the inner wall or outer wall of the fan blade to drive the rotation of the fan blade through the rotation of the follower, wherein the fan blade is rotatably arranged on the supporting structure, so that the fan blade is supported by the supporting structure to rotate on the supporting structure.

[0038] In the above technical solution, the supporting structure is a hollow structure, the fan blades are arranged in the supporting structure, and the active parts are arranged in the fan blades.

[0039] In this technical solution, the supporting structure is a hollow structure. When the fan blades drive the air to flow from one side to the other side, part of the air can pass through the hollow structure of the supporting structure to facilitate the flow of air, thereby increasing the outlet airflow of the air supply device, which is beneficial to maintaining the stability of the outlet airflow. The fan blades are arranged in the supporting structure to support the rotation of the fan blades in the hollow structure of the supporting structure through the supporting structure, wherein the active member is arranged in the fan blade to drive the rotation of the driven member arranged in the fan blade through the rotation of the active member, thereby driving the fan blade to rotate.

[0040] In the above technical solution, the supporting structure is a hollow structure, the fan blades are arranged outside the supporting structure, and the active parts are arranged inside the supporting structure.

[0041] In this technical solution, the supporting structure is a hollow structure. When the fan blades drive the air to flow from one side to the other side, part of the air can pass through the hollow structure of the supporting structure to facilitate the flow of air, thereby increasing the airflow of the air supply device, which is beneficial to maintaining the stability of the airflow. The fan blades are arranged outside the supporting structure to support the rotation of the fan blades on the supporting structure through the supporting structure, wherein the active member is arranged in the supporting structure to drive the rotation of the driven member arranged in the fan blade through the rotation of the active member, thereby driving the fan blade to rotate.

[0042] In the above technical solution, the driven member is arranged on the outer wall surface of the fan blade, and the active member is arranged inside the fan blade.

[0043] In this technical solution, the driven member is arranged on the outer wall of the fan blade, and the active member is arranged inside the fan blade, so that the first magnetic member of the active member is arranged opposite to the driven member in the radial direction of the driven member, and a corresponding magnetic force is generated to drive the rotation of the driven member. The active member is arranged inside the fan blade, which is conducive to reducing the size of the air supply device in the radial direction and reducing space occupation.

[0044] In the above technical solution, the driven member is arranged on the inner wall surface of the fan blade, and the active member is arranged inside the fan blade.

[0045] In this technical solution, the driven member is arranged on the inner wall of the fan blade, the active member is arranged inside the fan blade, and the first magnetic member of the active member is arranged corresponding to the driven member along the radial direction of the driven member, and generates a corresponding magnetic force to drive the rotation of the driven member. At the same time, the radial distance between the driven member and the active member can be reduced, and the driving force of the active member on the driven member can be enhanced.

[0046] In the above technical solution, the fan blade is annular, the driven member is arranged on the inner wall surface of the outer ring of the fan blade, and the active member is arranged inside the inner ring of the fan blade.

[0047] In this technical solution, the fan blade is annular, and the driven member is arranged on the inner wall surface of the outer ring of the fan blade, and the active member is arranged inside the fan blade, and the active member is arranged corresponding to the driven member along the radial direction of the fan blade, and the magnetic force generated by the active member on the driven member drives the driven member to drive the fan blade to rotate. The active member is arranged outside the fan blade, so that when it is not suitable to install the active member outside the fan blade, for example, when the overall size of the fan blade is small or other components are arranged outside the fan blade, the active member and the driven member can still be arranged correspondingly to avoid affecting the driving effect of the active member on the driven member, and at the same time, a small radial distance can be maintained between the driven member and the active member.

[0048] In the above technical solution, the plurality of first magnetic members and / or the plurality of second magnetic members are continuously arranged along the circumferential direction.

[0049] In this technical solution, multiple first magnetic parts or multiple second magnetic parts are continuously arranged along the axial direction, or multiple first magnetic parts and multiple second magnetic parts are continuously arranged along the axial direction, so that when the multiple first magnetic parts are driven by the output shaft of the motor to rotate, there is a continuous interaction force between the multiple first magnetic parts and the multiple second magnetic parts to drive the multiple second magnetic parts to rotate, thereby driving the fan blade assembly to rotate.

[0050] In the above technical solution, the plurality of first magnetic members and / or the plurality of second magnetic members are uniformly arranged along the circumferential direction, and a circumferential gap exists between any two adjacent first magnetic members and / or any two adjacent second magnetic members.

[0051] In this technical solution, multiple first magnetic parts or magnetic parts are evenly arranged along the axial direction, so that the first magnetic part or the second magnetic part forms an annular belt structure, so that the first magnetic part or the second magnetic part is subjected to a balanced magnetic force during the rotation process, which is conducive to maintaining the stability of the rotor structure during the rotation process; or multiple first magnetic parts and magnetic parts are evenly arranged along the axial direction, so that the first magnetic part and the second magnetic part are subjected to a balanced magnetic force during the rotation process, which is conducive to maintaining the stability of the rotor structure during the rotation process. Among them, there is a circumferential gap between any two adjacent first magnetic parts or any two adjacent second magnetic parts, so that the first magnetic part or the second magnetic part forms an intermittent structure, and multiple magnetic parts are arranged at intervals along the circumference, so that the magnitude and direction of the magnetic force received by each magnetic part are the same, thereby maintaining the stability of the rotor structure during the rotation process; or there is a circumferential gap between any two adjacent first magnetic parts and any two adjacent second magnetic parts, so that the first magnetic part and the second magnetic part form an intermittent structure, and multiple magnetic parts are arranged at intervals along the circumference, so that the magnitude and direction of the magnetic force received by each magnetic part are the same, thereby maintaining the stability of the rotor structure during the rotation process.

[0052] The above technical solution also includes: a second base, the active component is arranged on the second base, and the second base is detachably connected to the fan blade assembly.

[0053] In this technical solution, a second base detachably connected to the fan blade is provided to facilitate the use of the air supply device and to clean and maintain the fan blade; and the active part is provided on the second base, that is, the active part can be disassembled independently from the fan blade assembly, which is also convenient for cleaning and maintaining the active part and the driven part separately. It can be understood that the stator and rotor of a commonly used motor are usually installed as one piece, and it is impossible to clean the inside of the motor. Dust and other impurities attached to the inside are easy to affect the normal operation of the motor.

[0054] The above technical solution also includes: a first wind shield and a second wind shield that are detachably connected, and after the second wind shield is connected to the first wind shield, a receiving cavity is formed inside that can at least accommodate the fan blade assembly.

[0055] In this technical solution, the air supply device also includes a first wind cover and a second wind cover, and the first wind cover and the second wind cover are detachably connected to form a receiving cavity that can at least accommodate the fan blade assembly, and the active component is arranged in the receiving cavity, so that the motor is placed in the receiving cavity as a whole, and the first wind cover and the second wind cover protect the motor and the fan blades to prevent interference with external objects during the rotation of the fan blades driven by the motor. In addition, the first wind cover and the second wind cover are detachable to facilitate maintenance or cleaning of the motor and the fan blades.

[0056] In the above technical solution, a ventilation grille is provided on the first air hood and / or the second air hood.

[0057] In this technical solution, ventilation grilles are provided on the first wind shield and / or the second wind shield, so that when the fan blades rotate, the airflow passes through the ventilation grilles on the first wind shield and / or the second wind shield to flow, so as to realize the air supply operation of the air supply device. Specifically, the ventilation grilles can be arranged along the axial direction of the fan blades, or can be arranged along the axial direction and radial direction of the fan blades at the same time.

[0058] In the above technical solution, the fan blade specifically includes: a first fan blade bracket, and a plurality of first fan blades, and the plurality of first fan blades are arranged on the outer wall surface of the first fan blade bracket along the circumference of the fan blade.

[0059] In this technical solution, the fan blades specifically include a first blade holder and a plurality of first blades. The plurality of first blades are arranged on the outer wall of the first blade holder along the circumference of the fan blades, so that the first blade holder rotates under the drive of the rotor structure, thereby causing the plurality of first blades arranged on the outer wall of the first blade holder to disturb the air, generate airflow, and realize the air supply operation of the air supply device.

[0060] In the above technical solution, the fan blade also includes: a second fan blade bracket, which is coaxially arranged with the first fan blade bracket, and the second fan blade bracket is sleeved outside the first fan blade.

[0061] In this technical solution, a second fan blade bracket coaxial with the first fan blade bracket is provided outside the first fan blade, so that the first fan blade can be fixed simultaneously by the inner first fan blade bracket and the outer second fan blade bracket, which is beneficial to improving the stability and service life of the fan blade when rotating.

[0062] In the above technical solution, the fan blade also includes: a plurality of second wind blades, which are arranged on the outer wall surface of the fan blade along the circumference of the fan blade.

[0063] In this technical solution, by arranging a plurality of second blades along the circumferential direction on the outer wall surface of the fan blade, the fan blade can form two inner and outer circles of blades, thereby increasing the airflow. It should be noted that the first blade and the second blade can be blades of the same form, or blades of different forms, for example, the first blade and the second blade have different shapes, or different sizes, or different inclination angles. In addition, by arranging a plurality of first blades and a plurality of second blades on the inner and outer circles of the fan blade, it is also beneficial to diffuse the airflow sent out through the fan blade, making the airflow softer, which is beneficial to improving the air supply comfort of the air supply device.

[0064] In the above technical solution, the driven member can rotate in the same direction or in the opposite direction relative to the driving member.

[0065] In this technical solution, the driven member can rotate in the same direction or in the opposite direction relative to the driving member, and can realize rotation in both positive and negative directions according to the rotation requirements of the load, thereby meeting different load requirements and having high flexibility.

[0066] In the above technical solution, there is a gap between the part of the transmission device connected to the fan blade assembly and the part of the transmission device connected to the motor.

[0067] In this technical solution, there is a gap between the part of the transmission device connected to the fan blade assembly and the part of the transmission device connected to the motor, avoiding contact between the part of the transmission device connected to the fan blade assembly and the part of the transmission device connected to the motor, thereby reducing the noise generated by the friction of the transmission mechanism during the operation of the fan blade assembly and improving the user experience. Additional aspects and advantages of the present invention will become apparent in the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 A schematic structural diagram of a fan blade assembly according to an embodiment of the present invention is shown;

[0069] Figure 2 Shows Figure 1 Schematic diagram of the cross-sectional structure of the AA part;

[0070] Figure 3 A schematic diagram of the structure of a motor assembly according to an embodiment of the present invention is shown;

[0071] Figure 4 An exploded schematic diagram of an active component according to an embodiment of the present invention is shown;

[0072] Figure 5 A schematic diagram of the structure of a rotating bracket according to an embodiment of the present invention is shown;

[0073] Figure 6 A schematic structural diagram of a follower according to an embodiment of the present invention is shown;

[0074] Figure 7 Shows Figure 6 Schematic diagram of the cross-sectional structure of the middle BB part;

[0075] Figure 8 An exploded schematic diagram of a follower according to an embodiment of the present invention is shown;

[0076] Fig. 9 A schematic structural diagram of an air supply device according to an embodiment of the present invention is shown;

[0077] Fig.10 An exploded schematic diagram of an air supply device according to an embodiment of the present invention is shown.

[0078] in, Figures 1 to 10 The corresponding relationship between the reference numerals and component names in the figure is:

[0079] 1 air supply device, 10 motor, 12 second base, 20 fan blade assembly, 22 fan blade, 224 rotating hole, 24 first wind cover, 26 second wind cover, 28 ventilation grille, 32 first base, 34 first fan blade bracket, 36 second fan blade bracket, 342 first fan blade, 362 second fan blade, 40 transmission device, 42 active part, 422 rotating bracket, 4222 first mounting groove, 426 first magnetic part, 428 first limiting part, 44 driven part, 442 second magnetic part, 50 rotating assembly, 52 rotating disk, 524 second mounting groove, 54 rotating shaft, 542 locking part, 528 bearing, 56 rotating end cover. DETAILED DESCRIPTION

[0080] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0081] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0082] Refer to the following Figures 1 to 10 Some embodiments according to the invention are described.

[0083] Example 1

[0084] like Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, an air supply device 1 is provided, which defines:

[0085] The air supply device 1 includes: a motor 10, a fan blade assembly 20, and a transmission device 40. The two ends of the transmission device 40 are respectively connected to the fan blade assembly 20 and the output shaft of the motor 10, so that when the output shaft of the motor 10 rotates, the fan blade assembly 20 is driven to rotate through the transmission device 40, so that air flows from one side of the fan blade assembly 20 to the other side. The rotation axis of the fan blade assembly 20 coincides with the axis of the output shaft of the motor 10, so that the output shaft of the motor is set corresponding to the rotation axis of the fan blade assembly 20, wherein there is a gap between the part of the transmission device 40 connected to the fan blade assembly 20 and the part of the transmission device 40 connected to the motor 10, thereby avoiding contact between the part of the transmission device 40 connected to the fan blade assembly 20 and the part of the transmission device 40 connected to the motor 10, and the transmission device 40 can drive the fan blade assembly 20 to rotate by magnetic force, so that the fan blade assembly 20 is driven by the magnetic force, thereby reducing the noise generated by the friction of the transmission mechanism during the operation of the fan blade assembly 20.

[0086] Optionally, the transmission device 40 drives the fan blade assembly 20 to rotate through magnetic force, thereby eliminating the drive shaft of the traditional motor 10, forming a coreless motor 10, and changing the setting method of the motor 10 and the load, so that the motor 10 does not need to be set axially with the load, thereby reducing the size of the motor 10 in the axial direction, effectively reducing the space occupied, and facilitating the realization of a lightweight and miniaturized design.

[0087] Optionally, the output shaft of one motor 10 may be connected to two or more fan blade assemblies 20 via a transmission device 40 , so that multiple fan blade assemblies 20 can be driven by one motor 10 .

[0088] Optionally, one fan blade assembly 20 can be connected to the output shafts of multiple motors 10 through a transmission device 40 to drive one fan blade assembly 20 to rotate through multiple motors 10.

[0089] The air supply device 1 includes, but is not limited to, a table fan, a ceiling fan, a wall fan, a tower fan, a cooling fan, a heater, and a range hood.

[0090] Example 2

[0091] like Figure 3 and Figure 8 As shown, it is further defined as:

[0092] The transmission device 40 specifically includes: an active member 42 and a driven member 44, the active member 42 includes a plurality of first magnetic members 426, and the driven member 44 includes a plurality of second magnetic members 442, wherein the plurality of first magnetic members 426 are arranged on the output shaft of the motor 10, and the plurality of second magnetic members 442 are arranged on the fan blade assembly 20. When the output shaft of the motor 10 rotates, the plurality of first magnetic members 426 arranged on the output shaft of the motor 10 rotate together with the output shaft of the motor 10, and the first magnetic member drives the plurality of second magnetic members 442 to rotate through the interacting magnetic attraction and / or repulsion force, thereby driving the rotation of the fan blade assembly 20.

[0093] Furthermore, the polarities of any two adjacent first magnetic members 426 are different and the polarities of any two adjacent second magnetic members 442 are different, so that when the first magnetic member 426 rotates with the output shaft of the motor 10, multiple first magnetic members 426 move relative to multiple second magnetic members 442, so that the interaction force between the first magnetic member 426 and the second magnetic member 442 alternates between attractive force and repulsive force, so that through the relative movement between the first magnetic member 426 and the second magnetic member 442, the first magnetic member 426 generates a continuous driving force in the same direction on the second magnetic member 442, thereby driving the rotation of the second magnetic member 442.

[0094] Example 3

[0095] like Figure 4 and Figure 5 As shown, it is further defined as:

[0096] The active component 42 also includes a rotating bracket 422, and a plurality of first magnetic components 426 are arranged on the rotating bracket 422 along the axial direction of the rotating bracket 422, and the rotating bracket 422 is sleeved on the output shaft of the motor 10 to realize that the plurality of first magnetic components 426 are fixedly connected to the output shaft of the motor 10, so as to drive the plurality of first magnetic components 426 to rotate through the output shaft of the motor 10, and then through the magnetic force between the first magnetic component 426 and the second magnetic component 442, the fan blade assembly 20 is driven to rotate through the second magnetic component 442.

[0097] Example 4

[0098] like Figure 4 As shown, it is further defined as:

[0099] A plurality of first mounting grooves 4222 extending along the axial direction of the rotating bracket 422 are provided on the rotating bracket 422, and each first magnetic member 426 is provided in a first mounting groove 4222, wherein the first magnetic member 426 is provided along the axial direction of the rotating bracket 422, and a plurality of first magnetic members 426 can be inserted axially inward from the end face of the rotating bracket 422 for easy installation, and by providing the first magnetic member 426 in the first mounting groove 422, when the motor 10 rotates, the radial movement of the first magnetic member 426 on the rotating bracket 422 is limited, thereby maintaining the stability of the magnetic drive of the motor 10 during the rotation process.

[0100] Example 5

[0101] like Figure 5 As shown, it is further defined as:

[0102] A plurality of first mounting grooves 4222 extending along the radial direction of the rotating bracket 422 are provided on the rotating bracket 422, and each first magnetic member 426 is provided in a first mounting groove 4222, wherein the first magnetic member 426 is provided along the axial direction of the rotating bracket 422, and a plurality of first magnetic members 426 can be inserted radially inward from the end face of the rotating bracket 422 for easy installation, and by providing the first magnetic member 426 in the first mounting groove 4222, the axial movement of the first magnetic member 426 on the rotating bracket 422 is limited when the motor 10 rotates, thereby maintaining the stability of the magnetic drive of the motor 10 during the rotation process.

[0103] Example 6

[0104] Further defines:

[0105] like Figure 4As shown, at least one first limiting member 428 is disposed on the end surface of the rotating bracket 422 to limit the axial displacement of the first magnetic member 426 in the first installation groove 4222 through the limiting member.

[0106] Optionally, the number of the first limiting member 428 is one, which is detachably connected to one end of the rotating bracket 422 .

[0107] Optionally, two first limiting members 428 are respectively disposed at two ends of the rotating bracket 422 , so as to limit the axial movement of the first magnetic member 426 in the first installation groove 4222 .

[0108] Furthermore, the first limiting member 428 is detachably connected to the end surface of the rotating bracket 422 to facilitate the installation of the first magnetic member 426 .

[0109] Optionally, a first limiting member 428 may be disposed corresponding to a first magnetic member 426 to limit the axial movement of the first magnetic member 426 .

[0110] Optionally, a first limiting member 428 may be provided corresponding to the plurality of first magnetic members 426 to limit the axial movement of the plurality of first magnetic members 426 .

[0111] Optionally, when the number of the first limiting member 428 is one, a limiting portion protruding radially along the rotating bracket 422 can be provided at the end of the rotating bracket 422 away from the first limiting member 428 to limit the movement of the first magnetic member 426 in the first mounting groove 4222 along the axial direction.

[0112] Example 7

[0113] like Figure 4 and Figure 8 As shown, it is limited to:

[0114] Multiple first magnetic parts 426 or multiple second magnetic parts 442 are continuously arranged along the axial direction, or multiple first magnetic parts 426 and multiple second magnetic parts 442 are continuously arranged along the axial direction, so that when the multiple first magnetic parts 426 are driven by the output shaft of the motor 10 to rotate, there is a continuous interaction force between the multiple first magnetic parts 426 and the multiple second magnetic parts 442 to drive the multiple second magnetic parts 442 to rotate, thereby driving the fan blade assembly 20 to rotate.

[0115] Example 8

[0116] Further defines:

[0117] like Figure 6 and Figure 7As shown, the rotating assembly 50 includes a rotating disk 52 and a rotating shaft 54, which are arranged along the circumference of the rotating disk 52 through a driven member 44, and the active member 42 is arranged on the radial inner side of the rotating disk 52 to drive the driven member 44 to rotate through the rotation of the active member 42, wherein the rotating shaft 54 ​​is arranged at one end of the rotating disk 52 away from the active member 42, the fan blades 22 are fixedly connected to the rotating shaft 54, and the driven member 44 is fixedly connected to the rotating shaft 54, so that the active member 42 drives the driven member 44 to rotate, thereby driving the rotating shaft 54 ​​and the fan blades 22 to rotate.

[0118] A bearing 528 is also provided on the rotating shaft 54 ​​, and the rotating shaft 54 ​​is connected to the inner ring of the bearing 528 , and the outer ring of the bearing 528 is fixedly connected to the first base 32 , so as to realize the rotation connection between the rotating assembly 50 , the fan blades 22 and the first base 32 through the bearing 528 .

[0119] Example 9

[0120] like Figure 1 and Figure 2 As shown, it is further defined as:

[0121] A rotating hole 224 corresponding to the rotating shaft 54 ​​is provided on the fan blade 22, so that the rotating shaft 54 ​​can pass through the rotating hole 224. By threading the rotating shaft 54 ​​with a locking piece 542 at the other end of the fan blade 22, a fixed connection between the rotating shaft 54 ​​and the fan blade 22 is achieved to limit the axial movement of the fan blade 22 on the rotating shaft 54.

[0122] Example 10

[0123] like Figure 7 As shown, it is further defined as:

[0124] A plurality of second mounting grooves 524 extending along the axial direction of the rotating disk 52 are provided on the rotating disk 52 , so that the second magnetic member 442 is correspondingly arranged in the second mounting groove 524 , so that when the first magnetic member 426 rotates, it drives the second magnetic member 442 to rotate, thereby driving the rotating disk 52 to rotate.

[0125] Embodiment 11

[0126] like Figure 8 As shown, it is further defined as:

[0127] The outer side dimension of the second magnetic component 442 is larger than the inner side dimension, and the shape of the second mounting groove 524 is adapted to the second magnetic component 442, so that the radial movement of the second magnetic component 442 relative to the outer side is limited by the cooperation between the three inner walls of the second mounting groove 524 and the second magnetic component 442.

[0128] Example 12

[0129] Further defines:

[0130] At least one second limiting member is provided on one end face of the turntable, so as to limit the axial displacement of the second magnetic member 442 in the second mounting groove 524 by the second limiting member. It should be noted that each second magnetic member 442 is abutted against the second limiting member to limit the axial displacement of the second magnetic member 442 in the second mounting groove 524.

[0131] Embodiment 13

[0132] like Figure 7 As shown, it is further defined as:

[0133] A rotating end cover 56 is provided at the end of the rotating disk 52 away from the active component 42, so that the axial movement of the first magnetic component 426 in the first mounting groove 4222 is limited by the end cover, wherein the rotating end cover 56 is detachably connected to the rotating disk 52 to facilitate the installation of the first magnetic component 426, and the rotating shaft 54 ​​is fixedly connected to the end of the rotating end cover 56 away from the active component 42, so as to drive the rotating end cover 56 and the active component 42 to rotate through the rotating shaft 54.

[0134] Embodiment 14

[0135] like Figure 2 As shown, it is further defined as:

[0136] The fan blade 22 is a hollow structure, and the follower 44 is disposed on the inner wall or the outer wall of the fan blade 22 to drive the rotation of the fan blade 22 through the rotation of the follower 44, wherein the fan blade 22 is rotatably disposed on the supporting structure, so that the fan blade 22 is supported by the supporting structure to rotate on the supporting structure.

[0137] Embodiment 15

[0138] Further defines:

[0139] like Figure 7 As shown, the support structure is a hollow structure. When the fan blades 22 drive the air to flow from one side to the other side, part of the air can pass through the hollow structure of the support structure to facilitate the flow of air, thereby increasing the outlet airflow of the air supply device 1, which is beneficial to maintaining the stability of the outlet airflow. The fan blades 22 are arranged in the support structure to support the rotation of the fan blades 22 in the hollow structure of the support structure through the support structure, wherein the active member 42 is arranged in the fan blade 22 to drive the rotation of the driven member 44 arranged in the fan blade 22 through the rotation of the active member 42, thereby driving the fan blade 22 to rotate.

[0140] Example 16

[0141] Further defines:

[0142] The supporting structure is a hollow structure. When the fan blades 22 drive the air to flow from one side to the other side, part of the air can pass through the hollow structure of the supporting structure to facilitate the flow of air, thereby increasing the airflow of the air supply device 1, which is beneficial to maintaining the stability of the airflow. The fan blades 22 are arranged outside the supporting structure to support the rotation of the fan blades 22 on the supporting structure through the supporting structure, wherein the active member 42 is arranged in the supporting structure to drive the rotation of the driven member 44 arranged in the fan blades 22 through the rotation of the active member 42, thereby driving the fan blades 22 to rotate.

[0143] Embodiment 17

[0144] like Figure 1 and Figure 2 As shown, it is further defined as:

[0145] The driven member 44 is arranged on the outer wall surface of the fan blade 22, and the active member 42 is arranged outside the fan blade 22 or inside the fan blade 22, so that the first magnetic member 426 of the active member 42 is arranged opposite to the driven member 44 along the radial direction of the driven member 44, and generates a corresponding magnetic force to drive the rotation of the driven member 44. Specifically, the driven member 44 is arranged on the outer wall surface of the fan blade 22, which is conducive to reducing the distance between the active member 42 and the driven member 44, and the active member 42 is arranged inside the fan blade 22, which is conducive to reducing space occupation and reducing the overall radial size of the air supply device 1.

[0146] Embodiment 18

[0147] like Figure 1 and Figure 2 As shown, it is further defined as:

[0148] The driven member 44 is arranged on the inner wall surface of the fan blade 22, and the active member 42 is arranged inside the fan blade 22. By arranging the driven member 44 on the inner wall surface of the fan blade 22, the first magnetic member 426 of the active member 42 is arranged opposite to the driven member 44 along the radial direction of the driven member 44, and generates a corresponding magnetic force to drive the rotation of the driven member 44. Specifically, the driven member 44 is arranged inside the fan blade 22, which is conducive to reducing the distance between the active member 42 and the driven member 44, and can also reduce the overall radial size of the air supply device 1. When it is not suitable to install the active member 42 inside the fan blade 22, for example, when the overall size of the fan blade 22 is small, or when other components are arranged inside the fan blade 22, the active member 42 can also be arranged outside the fan blade 22.

[0149] Embodiment 19

[0150] like Figure 1 and Figure 2 As shown, it is further defined as:

[0151] Further, the fan blade 22 is annular, the driven member 44 is arranged on the inner wall surface of the outer ring of the fan blade 22, and the active member 42 is arranged inside the inner ring of the fan blade 22, so that the first magnetic member 426 of the active member 42 is arranged opposite to the driven member 44 along the radial direction of the driven member 44, and generates a corresponding magnetic force to drive the rotation of the driven member 44. Specifically, the driven member 44 is arranged on the inner wall surface of the outer ring, which is conducive to reducing the distance between the active member 42 and the driven member 44, and the active member 42 is arranged inside the inner ring of the fan blade 22, which is conducive to reducing space occupation and reducing the overall radial size of the air supply device 1.

[0152] Embodiment 20

[0153] like Figure 4 As shown, it is further defined as:

[0154] The plurality of first magnetic members 426 or second magnetic members are evenly arranged along the axial direction, so that the first magnetic members 426 or second magnetic members 442 form an annular belt structure, so that the first magnetic members 426 or second magnetic members 442 are subjected to a balanced magnetic force during the rotation process, which is beneficial to maintaining the stability of the rotor structure during the rotation process;

[0155] Optionally, the plurality of first magnetic members 426 and second magnetic members are evenly arranged along the axial direction, so that the first magnetic members 426 and the second magnetic members 442 are subjected to balanced magnetic force during rotation, which is beneficial to maintaining the stability of the rotor structure during rotation.

[0156] Furthermore, there is a circumferential gap between any two adjacent first magnetic members 426 or any two adjacent second magnetic members 442, so that the first magnetic members 426 or the second magnetic members 442 form an intermittent structure, and multiple magnetic members are arranged at intervals along the circumferential direction, so that the magnitude and direction of the magnetic force exerted on each magnetic member are the same, thereby maintaining the stability of the rotor structure during rotation.

[0157] Furthermore, there is a circumferential gap between any two adjacent first magnetic members 426 and any two adjacent second magnetic members 442, so that the first magnetic members 426 and the second magnetic members 442 form an intermittent structure, and multiple magnetic members are arranged at intervals along the circumferential direction, so that the magnitude and direction of the magnetic force exerted on each magnetic member are the same, thereby maintaining the stability of the rotor structure during rotation.

[0158] Embodiment 21

[0159] like Fig.10 As shown, it is further defined as:

[0160] The air supply device 1 is provided with a second base 12 detachably connected to the fan blade 22, so as to facilitate the use of the air supply device 1 and to clean and maintain the fan blade 22, and the active member 42 is provided on the second base 12, that is, the active member 42 can be independently disassembled from the rotor structure, and it is also convenient to clean and maintain the active member 42 and the driven member 44 separately. It can be understood that the stator and the rotor of the commonly used motor 10 are usually installed as one body, and the inside of the motor 10 cannot be cleaned, and the dust and other impurities attached to the inside are easy to affect the normal operation of the motor 10.

[0161] Embodiment 22

[0162] like Fig. 9 and Fig.10 As shown, it is further defined as:

[0163] The air supply device 1 further includes a first air cover 24 and a second air cover 26 .

[0164] After the first wind cover 24 and the second wind cover 26 are detachably connected, a receiving cavity is formed inside that can at least accommodate the fan blade assembly 20, and the active member 42 is arranged in the receiving cavity, so that the motor 10 is placed in the receiving cavity as a whole, and the first wind cover 24 and the second wind cover 26 protect the motor 10 and the fan blade 22, so as to avoid interference with external objects during the process of the motor 10 driving the fan blade 22 to rotate. In addition, the first wind cover 24 and the second wind cover 26 are detachable, so as to maintain or clean the motor 10 and the fan blade 22.

[0165] Embodiment 23

[0166] like Fig.10 As shown, it is further defined as:

[0167] The support structure is arranged on the side of the first wind hood 24 facing the second wind hood 26, that is, the support structure is arranged on the first wind hood 24, and after the first wind hood 24 is connected to the second wind hood 26, the support structure is in the accommodating space, and the fan blade 22 provided with the follower 44 is supported by the support structure to prevent the fan blade 22 from shifting during rotation.

[0168] Furthermore, a ventilation grille 28 is provided on the first wind hood 24 and / or the second wind hood 26 so that when the fan blades 22 rotate, the air flow passes through the ventilation grille 28 on the first wind hood 24 and / or the second wind hood 26 to realize the air supply operation of the air supply device 1.

[0169] Optionally, the ventilation grille 28 may be disposed along the axial direction of the fan blade 22 , or may be disposed along both the axial direction and the radial direction of the fan blade 22 .

[0170] Embodiment 24

[0171] like Figure 1 and Figure 2 As shown, based on any one of Examples 8 to 12, it is further defined that:

[0172] The fan blade 22 also includes: a first fan blade bracket 34 and a plurality of first fan blades 342. The plurality of first fan blades 342 are arranged on the outer wall surface of the first fan blade bracket 34 along the circumference of the fan blade 22, so that when the fan blade 22 rotates, the air is driven to flow from one side of the fan blade 22 to the other side through the plurality of first fan blades 342.

[0173] Furthermore, the fan blade 22 also includes a second fan blade bracket 36, wherein the first fan blade bracket 34 is coaxially arranged with the second fan blade bracket 36, and the second fan blade bracket 36 is sleeved outside the first fan blade 342, so that the two ends of the first fan blade 342 are fixed by the first fan blade bracket 34 and the second fan blade bracket 36, thereby improving the stability of the first fan blade 342 during rotation.

[0174] Furthermore, the fan blade 22 also includes a plurality of second fan blades 362, which are arranged on the outer wall surface of the fan blade 22 along the circumference of the fan blade 22, so that when the fan blade 22 rotates, the rotation of the second fan blade 362 drives the air to flow from one side of the fan blade 22 to the other side. Specifically, by providing a first fan blade 342 between the first fan blade bracket 34 and the second fan blade bracket 36, and axially providing a second fan blade 362 on the outer wall surface of the second fan blade bracket 36, the fan blade 22 has an inner and outer side fan blade driving structure to improve the efficiency of the fan blade 22 in driving the air flow.

[0175] Embodiment 25

[0176] Further defines:

[0177] The driven member 44 can rotate in the same direction or in the opposite direction relative to the driving member 42, and can realize rotation in both positive and negative directions according to the rotation requirements of the load, so as to meet different load requirements and have high flexibility.

[0178] Embodiment 26

[0179] like Figure 1 and Figure 2As shown, according to a specific embodiment of the present invention, an air supply device 1 is proposed, comprising: a motor assembly, a driving device, a driven device, a fan blade, a front mesh cover, a rear mesh cover, and a fan blade locking nut, wherein the motor assembly comprises a motor and a driving shaft, the driving device is fixedly connected to the driving shaft, a fan blade rotating shaft is provided on a side of the driven device close to the fan blade, an end of the fan blade rotating shaft close to the fan blade passes through the fan blade and is fixedly connected to the fan blade locking nut, the driven device, the fan blade, and the fan blade locking nut are fixed together, a bearing 528 is also provided on the fan blade rotating shaft, and the bearing 528 is fixedly connected to the rear mesh cover, so that the fan blade and the driven device can rotate under the support of the bearing 528, wherein the driving shaft of the motor is arranged corresponding to the rotation axis of the fan blade, the driving device is arranged on one side of the driven device corresponding to the driven device, and a plurality of magnetic parts are provided in the driving device and the driven device, so that when the driving shaft of the motor drives the driving device to rotate, the driving device drives the driven device to rotate through the magnetic interaction force between the driving device and the driven device, thereby driving the fan blade to rotate.

[0180] Among them, the front mesh cover is arranged on the air outlet side of the fan blade, and the rear mesh cover is arranged on the air inlet side of the fan blade. The front mesh cover and the rear mesh cover are detachably connected, and a accommodating space for the fan blade is formed between the front mesh cover and the rear mesh cover.

[0181] Furthermore, the driven device specifically includes: a driven magnet mounting plate, a plurality of driven magnets, a driven magnet end cover, a bearing 528 and a fan blade rotating shaft, wherein a plurality of mounting grooves are provided on the driven magnet mounting plate, each driven magnet is correspondingly arranged in a mounting groove, the driven magnet end cover is detachably connected to one side of the driven magnet mounting plate to limit the movement of the driven magnet in the axial direction of the driven magnet mounting plate, the fan blade rotating shaft is fixedly connected to one end of the driven magnet close to the fan blade, and the bearing 528 is arranged on the fan blade rotating shaft.

[0182] Furthermore, the driving device specifically includes: a magnet mounting plate, a magnet, and an end cover, wherein the magnet mounting plate is provided with a plurality of first mounting grooves 4222 arranged along the axial direction of the magnet mounting plate, the magnet is arranged in the first mounting groove 4222, and a detachable connecting end cover is provided at one end of the magnet mounting plate, wherein a limiting portion protruding toward the first mounting groove 4222 is provided at the end of the magnet mounting plate away from the end cover, and the magnet is limited to move axially in the first mounting groove 4222 along the magnet mounting plate by the limiting portion and the end cover.

[0183] The fan blade assembly 20 also includes: a first fan blade bracket 34 and a plurality of first fan blades 342. The plurality of first fan blades 342 are arranged on the outer wall surface of the first fan blade bracket 34 along the circumference of the fan blade assembly 20, so that when the fan blade assembly 20 rotates, the air is driven to flow from one side of the fan blade 22 to the other side through the plurality of first fan blades 342.

[0184] Furthermore, the fan blade assembly 20 also includes a second fan blade bracket 36, wherein the first fan blade bracket 34 is coaxially arranged with the second fan blade bracket 36, and the second fan blade bracket 36 is sleeved outside the first fan blade 342, so that the two ends of the first fan blade 342 are fixed by the first fan blade bracket 34 and the second fan blade bracket 36, thereby improving the stability of the first fan blade 342 during rotation.

[0185] Furthermore, the fan blade assembly 20 also includes a plurality of second fan blades 362, which are arranged on the outer wall surface of the fan blade assembly 20 along the circumference of the fan blade assembly 20, so that when the fan blade assembly 20 rotates, the rotation of the second fan blades 362 drives the air to flow from one side of the fan blade assembly 20 to the other side. Specifically, by providing a first fan blade 342 between the first fan blade bracket 34 and the second fan blade bracket 36, and axially providing a second fan blade 362 on the outer wall surface of the second fan blade bracket 36, the fan blade assembly 20 has an inner and outer side fan blade driving structure to improve the efficiency of the fan blade 22 in driving the air flow.

[0186] The air supply device proposed in the present invention reduces the noise generated by the friction of the transmission mechanism during the operation of the fan blade assembly, and eliminates the need for the motor to be arranged axially with the load, thereby reducing the size of the motor in the axial direction, effectively reducing the space occupied, and facilitating a lightweight and miniaturized design.

[0187] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. 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.

[0188] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships 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 unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0189] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. 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 present invention. 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.

[0190] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air supply device, characterized in that: include: Motor; A fan blade assembly, wherein the rotation axis of the fan blade assembly coincides with the axis of the output shaft of the motor; A first wind shield and a second wind shield that are detachably connected, wherein the second wind shield is connected to the first wind shield to form an accommodating cavity that can at least accommodate fan blades; A transmission device, wherein both ends of the transmission device are respectively connected to the fan blade assembly and the output shaft of the motor, so that the transmission device is driven by the motor to operate and drive the fan blade assembly to rotate; Among them, the transmission device includes a driving member and a driven member that are detachably connected, the driving member is arranged on the output shaft of the motor, and the driven member is arranged on the fan blade assembly. The fan blade assembly and the motor are detachably connected through the transmission device, and the transmission device can drive the fan blade assembly to rotate through magnetic force.

2. The air supply device according to claim 1, characterized in that: The fan blade assembly comprises: A fan blade and a rotating assembly are fixedly connected, wherein the rotating assembly includes a rotating disk and a rotating shaft arranged at one end of the rotating disk away from the driving member, the fan blade is fixedly connected to the rotating shaft, and the driven member is fixedly connected to the rotating shaft, so that the driven member drives the rotating shaft to rotate through the driving of the driving member; Wherein, the driven member is arranged on the rotating disk.

3. The air supply device according to claim 2, characterized in that: Also includes: A bearing, disposed on the rotating shaft; The first base is arranged on the second air cover, the inner ring of the bearing is connected to the rotating shaft, and the outer ring of the bearing is connected to the first base.

4. The air supply device according to claim 2, characterized in that: The fan blade is provided with a rotation hole corresponding to the rotation shaft, and one end of the rotation shaft away from the active member passes through the rotation hole. The fan blade assembly also includes: A locking member is threadedly connected to the rotating shaft so as to limit the axial displacement of the fan blade on the rotating shaft through the locking member.

5. The air supply device according to claim 2, characterized in that: The active member includes a plurality of first magnetic members; The driven member includes a plurality of second magnetic members arranged on the fan blade assembly, and the plurality of second magnetic members are driven to rotate by the magnetic force of the first magnetic member, thereby driving the rotation of the fan blade assembly to realize the magnetic force drive of the transmission device. Among them, a plurality of the second magnetic members are arranged along the circumference of the rotating assembly, an axial gap exists between the active member and the driven member, the polarities of any two adjacent first magnetic members are different, and the polarities of any two adjacent second magnetic members are different.

6. The air supply device according to claim 5, characterized in that: The active part also includes: The rotating bracket is sleeved on the output shaft of the motor, and a plurality of the first magnetic members are arranged along the circumference of the rotating bracket.

7. The air supply device according to claim 6, characterized in that: The rotating bracket is provided with a plurality of first installation grooves extending along the axial direction of the rotating bracket, and the first magnetic member is correspondingly arranged in the first installation grooves.

8. The air supply device according to claim 6, characterized in that: The rotating bracket is provided with a plurality of first installation grooves extending along the radial direction of the rotating bracket, and the first magnetic members are correspondingly arranged in the first installation grooves.

9. The air supply device according to claim 7 or 8, characterized in that: The active part also includes: At least one first limiting member, each of the first limiting members is disposed on an end surface of the rotating bracket, so as to limit the axial displacement of the first magnetic member in the first installation groove through the first limiting member.

10. The air supply device according to claim 1, characterized in that: Also includes: A second base, the active component is arranged on the second base, and the second base is detachably connected to the fan blade assembly.

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