CN219733674U

CN219733674U - Air supply device

Info

Publication number: CN219733674U
Application number: CN202320600962.5U
Authority: CN
Inventors: 曾俊锋; 崔世强; 郭润明
Original assignee: GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-09-22
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses an air supply device, which comprises: a hollow shaft; the motor assembly comprises a rotor and a stator, and the rotor and the stator are sleeved with each other and are sleeved outside the hollow shaft; the fan blade is sleeved on the radial outer side of the rotor and connected with the rotor. According to the air supply device provided by the utility model, the air supply device is of a hollow structure, the utilization of a middle area is realized, the appearance is attractive, the structure is simple, the air quantity can be increased, the change of wind type is realized, and the air feeling is better.

Description

Air supply device

Technical Field

The utility model relates to the technical field of household appliances, in particular to an air supply device.

Background

The shaft hole structure is arranged in the conventional fan blade hub and is arranged on a motor shaft, the fan blade structure is complex, the head of the fan is not provided with a hollow area, the air compensation of the fan cannot be adjusted, or other auxiliary functions are added, and the user requirements cannot be met.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the air supply device provided by the utility model has a hollow structure, can realize the utilization of a middle area, is attractive in appearance and simple in structure, can increase the air quantity, can realize the change of wind types, and has good wind sense.

According to an embodiment of the utility model, an air supply device comprises a hollow shaft; the motor assembly comprises a rotor and a stator, and the rotor and the stator are sleeved with each other and are sleeved outside the hollow shaft; and the fan blade is sleeved on the radial outer side of the rotor and is connected with the rotor.

According to the air supply device provided by the embodiment of the utility model, the hollow shaft is arranged, the rotor and the stator are mutually sleeved and are sleeved outside the hollow shaft, the radial outer side of the rotor is sleeved with the fan blade and connected with the fan blade, the rotor rotates on the hollow shaft relative to the hollow shaft to drive the fan blade to rotate relative to the hollow shaft, so that the air supply device works, meanwhile, the hollow shaft is adopted as a mounting basis, the air supply device is of a hollow structure, the utilization of a middle area is realized, the appearance is attractive, the structure is simple, the air quantity can be increased, the change of the wind type is realized, and the air sense is better.

In some embodiments of the present utility model, the rotor is sleeved outside the hollow shaft, the stator is sleeved outside the rotor, and the air supply device further includes: the first limiting piece is arranged on the outer wall of the rotor and is positioned on one side, far away from the stator, of the fan blade.

In some embodiments of the present utility model, the first limiting member is a blade nut, the blade nut is in threaded connection with the rotor, and the blade nut is abutted against the blade.

In some embodiments of the present utility model, one of the inner peripheral wall of the fan blade and the outer peripheral wall of the rotor is provided with a limiting protrusion, and the other is provided with a limiting groove matched with the limiting protrusion.

In some embodiments of the utility model, a bearing assembly is provided between the stator and the rotor.

In some embodiments of the present utility model, the air supply device further includes: the second limiting piece is arranged on the outer wall of the rotor and is positioned between the bearing assembly and the fan blade.

In some embodiments of the present utility model, the air supply device further includes: the third limiting piece is arranged on the outer wall of the rotor and is positioned on one side, far away from the fan blade, of the bearing assembly.

In some embodiments of the utility model, the bearing assembly comprises a first bearing and a second bearing, the first bearing and the second bearing being arranged in an axial direction of the rotor.

In some embodiments of the present utility model, the air supply device further includes: the fan blade is arranged between the first net cover and the second net cover, the centers of the first net cover and the second net cover are provided with through holes corresponding to the center through holes of the hollow shafts, and the first net cover and the second net cover are connected with the hollow shafts.

In some embodiments of the present utility model, the hollow shaft includes a first shaft section and a second shaft section arranged and connected along an axial direction of the hollow shaft, the first mesh enclosure is connected to an end of the first shaft section away from the second shaft section, the second mesh enclosure is connected to an end of the second shaft section away from the first shaft section, the first mesh enclosure is integral with the first shaft section, and the second mesh enclosure is integral with the second shaft section.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a cross-sectional view of an air moving device according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 2;

fig. 4 is an exploded view of an air blowing device according to an embodiment of the present utility model, in which a first mesh enclosure and a second mesh enclosure are not shown.

Reference numerals:

10. an air supply device;

1. a hollow shaft; 11. a first shaft section; 12. a second shaft section; 13. a center through hole;

2. a motor assembly; 21. a rotor; 211. a limit groove; 22. a stator;

3. a fan blade; 31. a limit protrusion;

4. a bearing assembly; 41. a first bearing; 42. a second bearing;

5. a first limiting member; 6. a second limiting piece; 7. a third limiting member; 8. a first mesh enclosure; 81. a through hole; 9. and a second net cover.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

An air blowing device 10 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, an air supply device 10 according to an embodiment of the present utility model includes a hollow shaft 1, a motor assembly 2, and fan blades 3.

Specifically, referring to fig. 1 and 2, the hollow shaft 1 is provided at the center of the air blowing device 10 and is relatively fixed to the air blowing device 10, which is the installation base of the motor assembly 2, while the hollow structure of the hollow shaft 1 makes the air blowing device 10 a hollow structure. The motor assembly 2 comprises a rotor 21 and a stator 22, the rotor 21 and the stator 22 are mutually sleeved and are sleeved outside the hollow shaft 1, the rotor 21 rotates around the axis of the hollow shaft 1, the fan blades 3 are sleeved on the radial outer side of the rotor 21 and are connected with the rotor 21, so that the rotor 21 rotates around the axis of the hollow shaft 1 to drive the fan blades 3 to rotate around the axis of the hollow shaft 1, and the air supply device 10 works. Meanwhile, the inner side of the fan blade 3 is directly connected with the rotor 21, and compared with the connection of the fan blade and the rotor through a shaft hole structure, the structure of the air supply device 10 is simpler.

It will be appreciated that other devices may be added to the hollow structure of the hollow shaft 1 to enable the use of intermediate areas, such as a fragrance box or night light, to add fragrance or night light functionality.

In addition, when no object is arranged in the hollow structure of the hollow shaft 1, the axial air inlet of the air supply device 10 can be supplemented, so that the air inlet quantity is increased, the air in the hollow shaft 1 is not influenced by the deflection effect of the fan blades 3, so that the air in the hollow shaft 1 is straight air (or parallel air), meanwhile, the parallel air in the hollow shaft 1 and the spiral air of the fan blades 3 are mutually overlapped, the air type with a horn-shaped cross section gradually enlarged can be formed, the air supply is softer, the better air sense is realized, the air type change is realized, and the problem of the air type aggregation of the traditional air supply device can be avoided.

According to the air supply device 10 provided by the embodiment of the utility model, the hollow shaft 1 is arranged, the rotor 21 and the stator 22 are sleeved with each other and are sleeved outside the hollow shaft 1, the fan blades 3 are sleeved on the radial outer side of the rotor 21 and are connected with the fan blades 3, the rotor 21 rotates around the axis of the hollow shaft 1 to drive the fan blades 3 to rotate around the axis of the hollow shaft 1, so that the air supply device 10 works, and meanwhile, the hollow shaft 1 is adopted as a mounting basis, so that the air supply device 10 is of a hollow structure, the utilization of a middle area is realized, the appearance is attractive, the structure is simple, the air quantity can be increased, the change of wind types is realized, and better wind sense is realized.

In some embodiments of the present utility model, as shown in fig. 1, the rotor 21 is sleeved outside the hollow shaft 1, and the stator 22 is sleeved outside the rotor 21, so as to form an inner rotor motor structure. The inner rotor motor has high rotating speed and large air quantity relative to the outer rotor motor, so that the working efficiency of the air supply device 10 is improved. Of course, the present utility model is not limited thereto, and the stator 22 may be sleeved outside the hollow shaft 1, and the rotor 21 is sleeved outside the stator 22, thereby forming an outer rotor motor structure.

Further, as shown in fig. 2, the air supply device 10 further includes a first limiting member 5, where the first limiting member 5 is disposed on an outer wall of the rotor 21 and is located on a side of the fan blade 3 away from the stator 22. Therefore, the movement of the fan blade 3 in the direction away from the stator 22 can be limited, the axial movement of the fan blade 3 on the rotor 21 is limited, and the fixing reliability of the fan blade 3 is ensured.

In some embodiments of the present utility model, as shown in fig. 2, the first limiting member 5 is a blade nut, and the blade nut is in threaded connection with the rotor 21, and the blade nut is abutted against the blade 3. Thereby facilitating the connection between the first limiting member 5 and the rotor 21 and facilitating the positioning of the fan blade 3 on the rotor 21 in the axial direction. The fan blade nut and the rotor 21 are fixed in a threaded connection mode, so that the fan blade nut and the rotor 21 are kept relatively fixed, the rotor 21 drives the fan blade nut to rotate, and meanwhile, the rotor 21 drives the fan blade 3 to rotate, so that the fan blade nut and the fan blade 3 do not rotate with each other.

In some embodiments of the present utility model, as shown in fig. 3 and 4, one of the inner peripheral wall of the fan blade 3 and the outer peripheral wall of the rotor 21 is provided with a limiting groove 211, and the other is provided with a limiting protrusion 31 engaged with the limiting groove 211. In the examples shown in fig. 3 and 4, the inner peripheral wall of the fan blade 3 is provided with a limiting protrusion 31, the outer peripheral wall of the rotor 21 is provided with a matched limiting groove 211, and the fan blade 3 and the rotor 21 are prevented from rotating by matching the limiting groove 211 and the limiting protrusion 31, so that the rotor 21 can drive the fan blade 3 to rotate. Of course, the present utility model is not limited thereto, and the inner peripheral wall of the fan blade 3 may be provided with a limit groove 211, and the outer peripheral wall of the rotor 21 may be provided with a limit protrusion 31 that is engaged therewith.

In some embodiments of the utility model, as shown in fig. 2, a bearing assembly 4 is provided between the stator 22 and the rotor 21. The inner race of the bearing assembly 4 is coupled to the rotor 21, the outer race is coupled to the stator 22, supports the stator 22 and the rotor 21, and restricts axial and radial movement of the rotor 21 so that the rotor 21 rotates along the hollow shaft 1. In the present utility model, the bearing assembly 4 may be a sliding bearing or a rolling bearing.

In some embodiments of the present utility model, as shown in fig. 2, the air supply device 10 further includes: the second limiting piece 6 is arranged on the outer wall of the rotor 21 and is positioned between the bearing assembly 4 and the wind blade 3, so that the direct contact between the wind blade 3 and the bearing assembly 4 is avoided, the wind blade 3 and the bearing assembly 4 are protected, when the wind blade nut and the wind blade 3 are stopped, the second limiting piece 6 is stopped with the wind blade 3 and is stopped with the bearing assembly 4, the wind blade 3 is limited to move in a direction close to the bearing assembly 4, and the wind blade nut are combined to act together, so that the wind blade 3 is positioned at the axial position of the rotor 21.

In some embodiments of the present utility model, as shown in fig. 2, the air supply device 10 further includes: the third limiting piece 7, the third limiting piece 7 is located on the outer wall of the rotor 21 and is located on one side, far away from the fan blade 3, of the bearing assembly 4, the third limiting piece 7 enables the bearing assembly 4 to avoid direct contact with other structures, the bearing assembly 4 can be protected, meanwhile, the third limiting piece 7 abuts against the bearing assembly 4, the bearing assembly 4 can be limited to move towards the position far away from the fan blade 3, and the air supply device 10 is fastened in structure.

In some embodiments of the present utility model, as shown in fig. 2, the bearing assembly 4 includes a first bearing 41 and a second bearing 42, and the first bearing 41 and the second bearing 42 are arranged in the axial direction of the rotor 21, whereby the reliability of rotation between the rotor 21 and the stator 22 can be ensured.

In some embodiments of the present utility model, as shown in fig. 1, the air supply device 10 further includes a first mesh enclosure 8 and a second mesh enclosure 9, where the first mesh enclosure 8 and the second mesh enclosure 9 are connected, and the fan blade 3 is disposed between the first mesh enclosure 8 and the second mesh enclosure 9, so that the fan blade 3 is protected by the first mesh enclosure 8 and the second mesh enclosure 9. The centers of the first mesh enclosure 8 and the second mesh enclosure 9 are provided with through holes 81 corresponding to the central through holes 13 of the hollow shaft 1, and the first mesh enclosure 8 and the second mesh enclosure 9 are connected with the hollow shaft 1, so that the through holes 81 of the first mesh enclosure 8 and the second mesh enclosure 9 are connected with the central through holes 13 of the hollow shaft 1, thereby forming a complete hollow area penetrating through the air supply device 10 in the middle of the air supply device 10, leading the air supply device 10 to be novel and attractive in appearance, and the middle area of the air supply device 10 to be utilized, for example, a lighting system or decorative facilities and the like can be arranged.

In some embodiments of the present utility model, as shown in fig. 1, the hollow shaft 1 includes a first shaft section 11 and a second shaft section 12 that are arranged and connected along an axial direction of the hollow shaft 1, and in the example shown in fig. 2, the first shaft section 11 and the second shaft section 12 are connected in a clamping manner, so that the disassembly is convenient, and of course, the present utility model is not limited thereto, and the first shaft section 11 and the second shaft section 12 may be connected by a fastener.

Further, as shown in fig. 1, the first mesh enclosure 8 is connected with one end of the first shaft section 11 far away from the second shaft section 12, the second mesh enclosure 9 is connected with one end of the second shaft section 12 far away from the first shaft section 11, the first mesh enclosure 8 and the first shaft section 11 are integrated, and the second mesh enclosure 9 and the second shaft section 12 are integrated, so that the air supply device 10 is better in integration and more stable in structure. When the first shaft section 11 and the second shaft section 12 are connected, since the first mesh enclosure 8 and the first shaft section 11 are integrated, the second mesh enclosure 9 and the second shaft section 12 are integrated, i.e. the first mesh enclosure 8 and the second mesh enclosure 9 are connected with each other, and the installation step is simpler.

The following description of the air moving device 10 in accordance with one embodiment of the present utility model is illustrative only and is not to be construed as limiting the utility model.

As shown in fig. 1, the air supply device 10 includes a hollow shaft 1, a motor assembly 2, a fan blade 3, a bearing assembly 4, a first limiting member 5, a second limiting member 6, a third limiting member 7, a first mesh enclosure 8, and a second mesh enclosure 9.

As shown in fig. 1 and 2, the motor assembly 2 includes a rotor 21 and a stator 22, the rotor 21 and the stator 22 are sleeved with each other and are sleeved outside the hollow shaft 1, the rotor 21 is sleeved outside the hollow shaft 1 in the radial direction, the stator 22 is sleeved outside the rotor 21 in the radial direction, a bearing assembly 4 is arranged between the stator 22 and the rotor 21, the bearing assembly 4 includes a first bearing 41 and a second bearing 42, and the first bearing 41 and the second bearing 42 are arranged in the axial direction of the rotor 21, thereby ensuring the reliability of rotation between the rotor 21 and the stator 22.

As shown in fig. 2 and 3, the fan blade 3 is sleeved on the radial outer side of the rotor 21 and is connected with the rotor 21, a limiting protrusion 31 is arranged on the inner peripheral wall of the fan blade 3, a matched limiting groove 211 is arranged on the outer peripheral wall of the rotor 21, and the fan blade 3 and the rotor 21 are prevented from rotating through the matching of the limiting groove 211 and the limiting protrusion 31.

As shown in fig. 2 and 3, the first limiting member 5 is disposed on the outer wall of the rotor 21 and located on one side of the fan blade 3 away from the stator 22, so as to limit the axial movement of the fan blade 3 on the rotor 21 and ensure the reliability of fixing the fan blade 3. The first limiting piece 5 is a fan blade nut, the fan blade nut is in threaded connection with the rotor 21, and the fan blade nut is abutted against the fan blade 3, so that the fan blade nut and the fan blade 3 do not rotate with each other. The second limiting piece 6 is arranged on the outer wall of the rotor 21 and is positioned between the bearing assembly 4 and the wind blade 3, and the wind blade 3 is limited to move towards the direction approaching to the bearing assembly 4. The third limiting piece 7 is arranged on the outer wall of the rotor 21 and is positioned on one side, far away from the fan blade 3, of the bearing assembly 4, and the bearing assembly 4 is limited to move towards a position far away from the fan blade 3, so that the air supply device 10 is fastened in structure.

As shown in fig. 1, the first mesh enclosure 8 is connected with the second mesh enclosure 9, the centers of the first mesh enclosure 8 and the second mesh enclosure 9 are provided with through holes 81 corresponding to the central through holes 13 of the hollow shaft 1, and the first mesh enclosure 8 and the second mesh enclosure 9 are connected with the hollow shaft 1, so that a complete hollow area penetrating through the air supply device 10 is formed in the middle of the air supply device 10, the appearance of the air supply device 10 is novel and attractive, and the middle area of the air supply device 10 can be utilized.

As shown in fig. 1, the hollow shaft 1 includes a first shaft section 11 and a second shaft section 12 arranged and connected along the axial direction of the hollow shaft 1, the first mesh enclosure 8 is connected with one end of the first shaft section 11 far away from the second shaft section 12, the second mesh enclosure 9 is connected with one end of the second shaft section 12 far away from the first shaft section 11, the first mesh enclosure 8 and the first shaft section 11 are integrated, the second mesh enclosure 9 and the second shaft section 12 are integrated, so that the air supply device 10 is better in integration, more stable in structure and simple in installation step.

Other constructions of the air moving device 10, such as the inner rotor motor and bearing assembly 4, and the like, and operation thereof, according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An air blowing device, comprising:

a hollow shaft;

the motor assembly comprises a rotor and a stator, and the rotor and the stator are sleeved with each other and are sleeved outside the hollow shaft;

and the fan blade is sleeved on the radial outer side of the rotor and is connected with the rotor.

2. The air supply device according to claim 1, wherein the rotor is sleeved outside the hollow shaft, the stator is sleeved outside the rotor, and the air supply device further comprises:

the first limiting piece is arranged on the outer wall of the rotor and is positioned on one side, far away from the stator, of the fan blade.

3. The air supply device according to claim 2, wherein the first limiting piece is a fan blade nut, the fan blade nut is in threaded connection with the rotor, and the fan blade nut is abutted against the fan blade.

4. The air supply device according to claim 1, wherein one of the inner peripheral wall of the fan blade and the outer peripheral wall of the rotor is provided with a limit protrusion, and the other is provided with a limit groove matched with the limit protrusion.

5. The air moving device as claimed in claim 1, wherein a bearing assembly is provided between said stator and said rotor.

6. The air supply device of claim 5, further comprising:

the second limiting piece is arranged on the outer wall of the rotor and is positioned between the bearing assembly and the fan blade.

7. The air supply device of claim 5, further comprising:

the third limiting piece is arranged on the outer wall of the rotor and is positioned on one side, far away from the fan blade, of the bearing assembly.

8. The air moving device according to claim 5, wherein the bearing assembly includes a first bearing and a second bearing, the first bearing and the second bearing being arranged in an axial direction of the rotor.

9. The air supply device according to claim 1, further comprising:

the fan blade is arranged between the first net cover and the second net cover, the centers of the first net cover and the second net cover are provided with through holes corresponding to the center through holes of the hollow shafts, and the first net cover and the second net cover are connected with the hollow shafts.

10. The air supply device according to claim 9, wherein the hollow shaft comprises a first shaft section and a second shaft section which are arranged and connected along an axial direction of the hollow shaft, the first mesh enclosure is connected with one end of the first shaft section far away from the second shaft section, the second mesh enclosure is connected with one end of the second shaft section far away from the first shaft section, the first mesh enclosure and the first shaft section are integrated, and the second mesh enclosure and the second shaft section are integrated.