CN218717757U

CN218717757U - Fan assembly and portable fan

Info

Publication number: CN218717757U
Application number: CN202222975556.5U
Authority: CN
Inventors: 许加华; 杨广
Original assignee: Shenzhen Curious Exploration Technology Co ltd
Current assignee: Shenzhen Curious Exploration Technology Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-24
Anticipated expiration: 2032-11-08

Abstract

An embodiment of the utility model discloses a fan assembly and a portable fan, fan assembly includes: an electric machine comprising: a stator including a first communication hole; the rotor is arranged around the outside of the stator; the fixing support penetrates through the first communicating hole, and a fixing part is arranged at one end of the fixing support, which is far away from the rotor; and the fan blade part is connected with the rotor. The embodiment of the utility model provides a pair of fan assembly and portable fan can pass through the mounted position of fixed part direct assembly in the fan, accomplish the installation with fan blade assembly on the motor again, avoided fan assembly because nested structure leads to the problem of inconvenient equipment when fixed to fan housing body in the equipment, the equipment of the portable fan product of being convenient for has improved the production and the assembly efficiency of product.

Description

Fan assembly and portable fan

Technical Field

The utility model relates to a fan equipment technical field especially relates to a fan assembly and a portable fan.

Background

At present, various styles of portable fans appear on the market, such as a neck hanging fan and the like, the portable fans can blow air to a human body through an air outlet to cool, and a user can conveniently carry and use the portable fans in a trip, so that convenience is brought to the user, and the portable fans are deeply loved by consumers. The problem that the flabellum spare radially rocked exists mostly in current string of neck fan, sets up unable adjustment base in the fan casing for this reason and fixes the stator usually, utilizes rotor and flabellum subassembly fixed, guarantees that the flabellum subassembly can be along with the rotor carries out stable rotation, has avoided the fan blade to lead to the skew and produce the collision noise by reasons such as centrifugal force when rotating. However, in the conventional fan structure, the fixed base is formed inside the fan shell during assembly, and the space inside the fan is limited, so that the problem that the stator is difficult to position and inconvenient to assemble when the stator is nested and assembled on the fixed base is caused, the assembly process of the fan is complex and difficult, and the production of the fan is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a fan assembly and a portable fan, which improve the fan assembly in the prior art, and solve the problem that the fan assembly is inconvenient to assemble due to the nested structure when the fan assembly is assembled and fixed on the fan housing.

Specifically, the embodiment of the utility model provides a fan assembly, including the motor, include: a stator including a first communication hole; the rotor is arranged outside the stator in a surrounding mode; the fixing support penetrates through the first communicating hole, and a fixing part is arranged at one end of the fixing support, which is far away from the rotor; and the fan blade part is connected with the rotor.

In an embodiment of the present invention, the fixing bracket is provided with a second communicating hole, the motor includes a rotating shaft, one end of the rotating shaft is inserted into the first communicating hole and connected to the rotor, and the other end of the rotating shaft is inserted into the second communicating hole.

The utility model discloses an in one embodiment, still include first bearing and second bearing, first bearing set up in the first intercommunication hole, the second bearing set up in the second intercommunication hole, the both ends of pivot respectively with first bearing with the second bearing is connected.

In an embodiment of the present invention, a rotating shaft through hole is provided on the rotor, and the rotating shaft passes through the rotating shaft through hole and extends to the outside of the rotor and is connected to the fan blade.

In an embodiment of the present invention, the fixing portion is provided with a plurality of fixing holes.

In an embodiment of the present invention, the rotor includes a motor housing and a magnetic member, the magnetic member is connected to the inner wall of the motor housing and surrounds the stator, and the fan blade member is connected to the outside of the motor housing.

In an embodiment of the present invention, the fan blade member includes a connecting portion and a fan blade, the fan blade surrounds the periphery of the connecting portion, a cavity is provided inside the connecting portion, and the rotor is disposed in the cavity.

Additionally, the embodiment of the utility model provides a portable fan, include: the fan body comprises a fan shell; and a fan assembly as described in any one of the above; wherein the fan assembly is connected in the fan housing through the fixing portion.

In an embodiment of the present invention, the fan main body further includes a connecting member, the connecting member is disposed on the fan housing and connected to the fixing portion to fix the fan assembly inside the fan housing.

In an embodiment of the present invention, the fan main body further includes a cover plate, the surface of the fan housing is provided with a groove, the connecting member is inserted into the groove, the bottom surface of the groove and one end of the connecting member are exposed in the groove, and the cover plate covers the opening of the groove.

The above technical solution may have one or more of the following advantages: the embodiment of the utility model provides a pair of fan assembly is through setting up the fixed stator of fixed bolster in the motor to be connected rotor and flabellum spare, the motor can drive the rotor and drive flabellum spare and rotate, thereby fix the rotor, the fixed bolster bottom sets up the fixed part, the motor can be through the mounted position of fixed part direct assembly in the fan in fan assembly process, accomplishes the installation with flabellum spare assembly on the motor again, has avoided fan assembly because nested structure leads to the problem of inconvenient equipment when fixed to fan housing in the equipment, and the equipment of the portable fan product of being convenient for has improved the production and the assembly efficiency of product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a fan assembly according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the fan assembly shown in fig. 1.

Fig. 3 is an exploded view of the fan assembly shown in fig. 2.

Fig. 4 is a schematic perspective view of a portable fan according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional structure view of the portable fan shown in fig. 4.

Fig. 6 is an enlarged schematic view of the region a shown in fig. 5.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present invention. The invention may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 4, the present embodiment provides a fan assembly 1 and a portable fan 2. The fan assembly 1 is connected, for example, inside the portable fan 2. Specifically, as shown in fig. 2 and 3, the fan assembly 1 includes an electric motor 10 and a fan blade 20, the electric motor 10 is configured in a cylindrical structure, and the electric motor 10 includes a stator 14, a rotor 15 and a fixing bracket 16. The stator 14 is connected to the fixing bracket 16, the axis of the stator 14 includes a first through hole 141, for example, and the fixing bracket 16 is disposed in the first through hole 141 and connected to one end of the first through hole 141. The rotor 15 is disposed around the stator 14. The fan blade 20 is, for example, a cylindrical structure, the fan blade 20 is provided with a plurality of arc-shaped blades, the fan blade 20 surrounds the outer circumferential surface of the motor 10, the axial center of the fan blade 20 is connected to the rotor 15, and the rotor 15 can drive the fan blade 20 to rotate, so that the plurality of blades generate air flow. The fixing bracket 16 is provided with a fixing portion 160 at an end away from the rotor 15, and the fixing portion 160 is used for fixedly connecting the fixing bracket 16 at a mounting position in the portable fan 2. In the process of assembling the fan assembly 1, the motor 10 can be directly assembled in the portable fan 2 through the fixing portion 160 in the assembling process, and then the fan blade 20 is assembled on the rotor 15 of the motor 10 to complete the installation, so that the problem of inconvenient assembly caused by a nested structure in the assembling process of the fan assembly 1 is avoided, the fan assembly 1 can be conveniently assembled in the portable fan 2, and the production and assembly efficiency of the portable fan 2 is improved.

In an embodiment of the present invention, as shown in fig. 2 and 3, the fixing bracket 16 is disposed through the axial hole of the stator 14, the fixing bracket 16 is provided with a second communicating hole 161 inside, the direction of the second communicating hole 161 is, for example, the same as the opening direction of the first communicating hole 141, the second communicating hole 161 communicates with the first communicating hole 141 on one side, and is away from one side of the rotor 15 toward the fixing portion 160 extending in the direction and communicating with the outside. The motor 10 further includes a rotating shaft 13, the rotating shaft 13 is disposed at an axial center position of the circular motor 10, for example, one end of the rotating shaft 13 penetrates through the first communicating hole 141 and is connected to the rotor 15, the other end of the rotating shaft 13 penetrates through the second communicating hole 161 and extends to the outside of the second communicating hole 161, and the rotating shaft 13 can rotate with the rotor 15 relative to the fixing bracket 16.

Further, as shown in fig. 2 and 3, the rotor 15 includes, for example, a motor housing 151 and a magnetic member 152. The motor housing 151 is, for example, a cylindrical aluminum case, and has a hollow inside and is open to the stator 14. The stator 14, the magnetic member 152 and the fixing bracket 16 are all disposed in the motor housing 151, the motor housing 151 is fixedly connected in the fan blade 20 at a side away from the stator 14, for example, by a threaded connection, and the fan blade 20 is connected at an outer side of the motor housing 151. The magnetic member 152 is formed by annularly connecting a plurality of rubidium, iron, and boron magnets, for example, and the magnetic member 151 is attached to the inner wall of the motor housing 152 in a surrounding manner and disposed in a surrounding manner with respect to the stator 14. The stator 14 is, for example, a coil disposed in an inner layer, and is disposed in a cylindrical shape, and an opening is formed in an axial position of the stator 14 for penetrating the fixing bracket 16 and the rotating shaft 13.

In an embodiment of the present invention, as shown in fig. 2 and 3, the motor 10 may further be provided with a plurality of bearings, for example, including a first bearing 40 and a second bearing 50. The first bearing 40 is disposed in the first through hole 141, connected to an inner wall of the first through hole 141, and located between the motor housing 151 and the fixing bracket 16; the second bearing 50 is spaced apart from the first bearing 40, a stepped hole is formed in the second communication hole 161 at a side close to the fixing portion 160, and the second bearing 40 is inserted into the second communication hole 161 and connected to the stepped hole in the second communication hole 161 close to the fixing portion 160. Both ends of the rotating shaft 13 are respectively fixed to the first bearing 40 and the second bearing 50 in the second communicating hole 161 through the first bearing 40 and the second bearing 50, and the rotating shaft 13 can rotate relative to the fixed bracket 16. Further, the rotor 15 can rotate relative to the stator 14 through electromagnetic induction under the electric drive, and drives the rotating shaft 13 to rotate, because the rotating shaft 13 is respectively and movably connected with the stator 14 and the first connecting hole 141 through the first bearing 40 and the second bearing 50, the stator 14 and the fixed bracket 16 limit the radial space of the rotating shaft 13 during the rotation, thereby fixing the radial shaking of the rotor 15, preventing the fan blade 20 from unnecessarily shaking in the rotation, and improving the dynamic balance of the fan assembly 1.

Further, as shown in fig. 2 and 3, the fixing bracket 16 is, for example, a cylindrical structure, a cylindrical cavity is provided inside the fixing bracket 16, the rotating shaft 13 is inserted into the cylindrical cavity in the center of the fixing bracket 16, a triangular fixing portion 160 is provided on a side of the fixing bracket 16 away from the stator 14, for example, a plurality of fixing holes 100 are provided on the fixing portion 160, for example, three fixing holes 100 are provided, and the three fixing holes 100 are respectively arranged adjacent to three inner corner positions of the triangular fixing portion 160, for example, a thread structure is provided in the fixing hole 100, so that the motor 10 can be fixed inside a certain fan structure by a fixing part corresponding to the fixing hole 100, thereby preventing the motor 10 from generating axial vibration during operation, and the fan assembly 1 can directly assemble the motor 10 at a target installation position through the fixing hole 100 in an assembly process, and then assemble the fan blade 20 on the motor 10 to complete installation, thereby improving production and assembly efficiency of products. The motor further includes a circuit board, such as a PCB, for example, the circuit board is fixed on the fixing portion 160 of the fixing bracket 16, and is electrically connected to the stator 14 to generate a magnetic field, so as to drive the rotor 15 to rotate and drive the rotating shaft 13 to rotate, and further drive the fan blade 20 to rotate to generate wind current.

In an embodiment of the present invention, as shown in fig. 3, the motor 10 further includes a positioning element 18 and a buffering element 19, the buffering element 19 is, for example, a rubber gasket, the positioning element 18 and the buffering element 19 are both adjacent to the fixing portion 160, the positioning element 18 is adjacent to one side of the second bearing 50 far from the first bearing 40, the buffering element 19 is sleeved on the rotating shaft 13 and located between the second bearing 50 and the positioning element 18, so as to further limit the axial vibration generated by the rotating shaft 13 in the rotation through the positioning element 18, and further limit the generation of the axial vibration of the fan blade 20, and meanwhile, the buffering element 19 can, for example, slow down the shake and noise generated by the vibration of the rotating shaft 13 in the axial direction through deformation, so as to further improve the shake problem of the fan assembly 1.

In an embodiment of the present invention, as shown in fig. 2 and fig. 3, the fan blade member 20 includes a connecting portion 21 and a fan blade 22, the fan blade 22 is connected to the periphery of the connecting portion 21, the fan blade 22 is, for example, plural, and plural along the axial direction, the fan blade 22 is disposed in a double-layer manner, and the fan blade 22 is, for example, connected to the connecting portion 21 along the counterclockwise direction. The connecting portion 21 is, for example, annular, a cylindrical cavity is provided at the axial position of the connecting portion 21, and the rotor 15 is connected in the connecting portion 21. In other embodiments of this embodiment, a through hole 150 is disposed at an end of the rotor 15 adjacent to the first bearing 40, the rotating shaft 13 extends out of the rotor 15 through the through hole 150 and is connected to the fan blade 20, and the axis of the rotating shaft 13 coincides with the axis of the fan blade 20, which is not limited in this embodiment.

In addition, as shown in fig. 4, the embodiment of the present invention further provides a portable fan 2, such as a neck hanging fan. The portable fan 2 includes, for example, a fan main body 30, and the fan assembly 1 described above. The fan main body 30 includes a fan housing 31, wherein the fan main body 30 is, for example, U-shaped to fit the neck of a human body, and the fan assemblies 1 are, for example, respectively disposed in two extending portions of the U-shaped fan main body 30. In this embodiment, for example, four fan assemblies 1 are symmetrically disposed in the fan housing 31, in other embodiments, other numbers of fan assemblies 1 may also be disposed in the fan housing 31, and this embodiment is not limited thereto.

Specifically, as shown in fig. 5 and 6, the fan main body 30 further includes a connecting member 32, the fan housing 31 is, for example, a U-shaped housing, a cavity is provided inside the fan housing 31, and the plurality of fan assemblies 1 are all disposed in the cavity inside the fan housing 31. The connector 32 is, for example, inserted into the fan housing 31, and connects the fixing portion 160 inside the fan housing 31. The fixing portion 160 is provided with the fixing hole 100, for example, the connecting member 32 corresponds to the fixing hole 100, and the connecting member 32 can be connected in the fixing hole 100, so as to connect and fix the fan assembly 1 on the fan housing 31, in this embodiment, the fixing hole 100 is a cylindrical hole provided with a threaded structure, for example, and the connecting member 32 is a threaded connecting member, so that the connecting member 32 is fixedly connected to the fan assembly 1 through the fixing hole 100, and axial vibration and noise generated during operation of the fan assembly 1 are avoided. Further, the fan main body 30 is further provided with a cover plate 33, the fan housing 31 is provided with a groove 310 at the installation position of the motor 10, for example, the bottom surface of the groove 310 is used for the motor 10 relative to the other side of the inside of the fan housing 31, the bottom surface of the groove 310 is provided with an opening corresponding to the connecting piece 32, for example, the connecting piece 32 penetrates through the bottom surface of the groove 310 and is connected with the fixing hole 100 at the other side. One end of the connecting element 32 is located on the bottom surface of the groove 310, the cover plate 33 covers the opening of the groove 310 and closes the groove 310, and a smooth surface is formed between the cover plate 33 and the fan housing 31, so that the groove 310 is closed, the connecting element 32 is prevented from being aged due to the influence of external environment, and the surface design of the fan housing 31 can be more beautiful.

In an embodiment of the present invention, as shown in fig. 5 and 6, the surface of the fan housing 31 is provided with an air inlet 311 and an air outlet 312, the air inlet 311 and the air outlet 312 are both communicated with the inner cavity of the fan housing 31, a volute is provided inside the fan housing 31, the fan assembly 1 is disposed inside the volute, and the air inlet 311 is adjacent to the fan blade 20, the air outlet 312 is adjacent to the fixing portion 160, so that the air inlet 311 is communicated with the volute of the fan assembly 1, and is further communicated with the air outlet 312 to form an air duct, the air outlet 312 is disposed, for example, at a position where the fan housing 31 is close to the human neck wearing side, so that when the user wears the portable fan 2, the fan assembly 1 in the portable fan 2 can blow air towards the human neck and head. Furthermore, a power supply unit 60 is further disposed in the fan housing 32, the power supply unit 60 includes, for example, a power supply and a control circuit, and the power supply unit 60 is electrically connected to the control board of the fan assembly 1, so as to control and drive the fan assembly 1 to drive or stop through electrical control.

In addition, it should be understood that the foregoing embodiments are only exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflicting technical features and structures and without violating the purpose of the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A fan assembly (1), comprising:

an electric machine (10) comprising:

a stator (14) including a first communication hole (141);

a rotor (15) circumferentially disposed outside the stator (14);

the fixing support (16) penetrates through the first communication hole (141), and a fixing part (160) is arranged at one end, far away from the rotor (15), of the fixing support (16);

and a fan blade member (20) connected to the rotor (15).

2. The fan assembly (1) according to claim 1, wherein the fixing bracket (16) is provided with a second communication hole (161), the motor (10) comprises a rotating shaft (13), one end of the rotating shaft (13) is inserted into the first communication hole (141) and connected with the rotor (15), and the other end of the rotating shaft (13) is inserted into the second communication hole (161).

3. The fan assembly (1) according to claim 2, further comprising a first bearing (40) and a second bearing (50), wherein the first bearing (40) is disposed in the first communication hole (141), the second bearing (50) is disposed in the second communication hole (161), and both ends of the rotating shaft (13) are connected to the first bearing (40) and the second bearing (50), respectively.

4. The fan assembly (1) according to claim 2, wherein a shaft through hole (150) is formed in the rotor (15), and the shaft (13) extends out of the rotor (15) through the shaft through hole (150) and is connected to the fan blade (20).

5. The fan assembly (1) of claim 1, wherein the fixing portion (160) is provided with a plurality of fixing holes (100).

6. The fan assembly (1) of claim 1, wherein the rotor (15) comprises a motor housing (151) and a magnetic member (152), the magnetic member (152) is connected to an inner wall of the motor housing (151) and disposed around the stator (14), and the fan blade member (20) is connected to an outer side of the motor housing (151).

7. The fan assembly (1) according to claim 1, wherein the fan blade member (20) comprises a connecting portion (21) and a fan blade (22), the fan blade (22) surrounds the periphery of the connecting portion (21), a cavity is arranged inside the connecting portion (21), and the rotor (15) is arranged in the cavity.

8. A portable fan (2), comprising:

a fan body (30) including a fan case (31); and

the fan assembly (1) of any one of claims 1 to 7;

wherein the fan assembly (1) is connected in the fan housing (31) by the fixing portion (160).

9. The portable fan (2) of claim 8, wherein the fan main body (30) further comprises a connecting member (32), the connecting member (32) is disposed on the fan housing (31) and is connected to the fixing portion (160) to fix the fan assembly (1) inside the fan housing (31).

10. The portable fan (2) of claim 9, wherein the fan body (30) is further provided with a cover plate (33), a groove (310) is formed on the surface of the fan housing (31), the connecting member (32) penetrates through the bottom surface of the groove (310) and has one end exposed in the groove (310), and the cover plate (33) covers the opening of the groove (310).