CN112762019A

CN112762019A - Fan damping mechanism, fan assembly and unmanned aerial vehicle

Info

Publication number: CN112762019A
Application number: CN202110373828.1A
Authority: CN
Inventors: 毛一年; 高焓; 纪秀东; 陆宏伟; 初征; 郜奥林
Original assignee: Beijing Sankuai Online Technology Co Ltd
Current assignee: Beijing Sankuai Online Technology Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-05-07
Also published as: CN216922632U

Abstract

The utility model relates to a fan damping mechanism, fan assembly and unmanned aerial vehicle, damping mechanism are used for setting up between fan and fan mount pad, and damping mechanism is including having elastic damping ring, and this damping ring structure can the elasticity suit in the fan periphery and can be pressed from both sides and establish between the outer wall of fan and the inner wall of fan mount pad for after the fan installation by the extrusion of fan and fan mount pad and produce the elasticity pre-pressure that supports and press fan and fan mount pad. Through above-mentioned technical scheme, the damping ring of the damping mechanism that this disclosed embodiment provided can utilize the elastic action of self and the extrusion is installed between fan and fan mount pad, and the installation is simple and convenient, and has higher reliability, guarantees that the fan is difficult for droing. In addition, the extruded mounting mode can not greatly influence the damping effect of the vibration reduction ring, thereby effectively ensuring the vibration reduction and noise reduction effects of the vibration reduction mechanism and avoiding the influence of vibration on the work of other parts around the fan.

Description

Fan damping mechanism, fan assembly and unmanned aerial vehicle

Technical Field

The utility model relates to a fan technical field specifically relates to a fan damping mechanism, fan assembly and unmanned aerial vehicle.

Background

At present, fans are generally used as important heat dissipation devices in various fields to dissipate heat of heating devices of applied products so as to prevent the temperature of the products from rising to affect the use. If in the unmanned aerial vehicle field, the organism can be provided with the power device who provides service function for unmanned aerial vehicle, if be used for unmanned aerial vehicle central processing unit and partial driving power supply, the power device can the temperature rise along with long-time work, consequently, often sets up the fan in the position department that corresponds to the power device and dispels the heat. Because the fan is installed to the unmanned aerial vehicle organism, this rotation that can lead to the fan can bring the vibration and produce the noise for the organism, when installing precision device (like unmanned aerial vehicle flight control inertial measurement unit sensor) around the fan moreover, the vibration that the fan brought can influence precision device's sensing precision.

Disclosure of Invention

The utility model aims at providing a fan damping mechanism, fan assembly and unmanned aerial vehicle, this fan damping mechanism's damping is effectual to the assembly of being convenient for.

In order to achieve the above object, the present disclosure provides a fan damping mechanism for being disposed between a fan and a fan mounting seat, the damping mechanism including a damping ring having elasticity, the damping ring being configured to be elastically fitted around an outer periphery of the fan and to be interposed between an outer wall of the fan and an inner wall of the fan mounting seat, for being pressed by the fan and the fan mounting seat after the fan is mounted to generate an elastic pre-pressure against the fan and the fan mounting seat.

Optionally, the damping ring is integrally formed from a viscoelastic material.

Optionally, the damping ring comprises a body for fitting around the periphery of the fan, and a resilient projection projecting from a circumferential wall of the body.

Optionally, the elastic protrusion is formed on the outer circumferential wall of the body and protrudes outward, so that the elastic protrusion can be pressed inward by the fan mounting seat after the fan is mounted, and the body can be pressed outward by the fan.

Optionally, the elastic protrusion is configured as a hollow structure in the form of a spherical protrusion, and the hollow structure is open at an end facing the body.

Optionally, the damping ring is configured as a tapered ring that changes in size in the axial direction of the fan, such that at least the small head end can be pressed outward by the fan and at least the large head end can be pressed inward by the fan mount after the fan is mounted.

Optionally, the damping ring is configured as a radially undulating corrugated ring, for a first portion of the corrugated ring projecting toward the sidewall of the fan to be outwardly compressible by the fan after the fan is installed, and a second portion of the corrugated ring projecting toward the sidewall of the fan mount to be inwardly compressible by the fan mount.

Optionally, the damping ring comprises an inner ring and an outer ring which are arranged at intervals in the radial direction, and a plurality of elastic ribs connected with the outer ring are arranged on the circumference of the inner ring.

Optionally, a lifting lug capable of being hung on the side wall of the fan mounting seat is formed on the side wall of the vibration reduction ring, and a plug is formed on the lifting lug and used for being plugged into a positioning hole in the fan mounting seat after the fan is mounted.

Optionally, the vibration reduction ring is provided with elastic limiting ribs at two end sides in the axial direction of the fan, and the elastic limiting ribs are used for stopping the fan after the fan is installed.

Optionally, an angular stiffener is disposed at a corner of the inner side of the damping ring.

Optionally, the vibration damping mechanism further includes a shaft portion penetrating through the fan, and a first elastic buffer portion and a second elastic buffer portion respectively formed at two ends of the shaft portion, and configured to be disposed between the cover plate of the fan mount and the top end of the fan in contact with the first elastic buffer portion after the fan is mounted, and be disposed between the bottom plate of the fan mount and the bottom end of the fan in contact with the second elastic buffer portion.

Optionally, the second elastic buffer portion is configured to be in contact with and disposed between the bottom plate having the grill and the fan, and is configured to keep a distance between the grill and the fan not less than a preset threshold.

Optionally, the second elastic buffer portion is configured as a hollow ball, one end of the hollow ball in the radial direction is connected with the shaft portion, and the other end of the hollow ball is connected with a detachable pulling shaft, and the pulling shaft is configured to be detached from the hollow ball after the hollow ball is pulled from one end to the other end of a through hole axially extending on the fan.

Another aspect of the present disclosure also provides a fan assembly including a fan and a fan mount, and a vibration reduction mechanism disposed between the fan and the fan mount, the vibration reduction mechanism being the fan vibration reduction mechanism as described above.

Still another aspect of the present disclosure provides an unmanned aerial vehicle, including a body, a heat generating device installed on the body, and a fan assembly installed on the body at a position corresponding to the heat generating device, where the fan assembly is the fan assembly as described above, and the fan mounting base is installed or formed on the body.

Through above-mentioned technical scheme, the damping ring of the damping mechanism that this disclosed embodiment provided can utilize the elastic action of self and the extrusion is installed between fan and fan mount pad, and the installation is simple and convenient, and has higher reliability, guarantees that the fan is difficult for droing. In addition, the extruded mounting mode can not greatly influence the damping effect of the vibration reduction ring, thereby effectively ensuring the vibration reduction and noise reduction effects of the vibration reduction mechanism and avoiding the influence of vibration on the work of other parts around the fan.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural diagram of a fan assembly provided in an exemplary embodiment of the present disclosure;

FIG. 2 is an exploded view of a fan assembly provided in an exemplary embodiment of the present disclosure;

FIG. 3 is an exploded view of a fan assembly provided in accordance with an exemplary embodiment of the present disclosure, with the fan omitted;

FIG. 4 is a schematic plan view of a damping mechanism in the embodiment of FIG. 3;

FIG. 5 is a cross-sectional view A of FIG. 4;

FIG. 6 is a schematic structural view of a damping mechanism provided in another exemplary embodiment of the present disclosure;

FIG. 7 is a schematic plan view of a fan assembly including the damping mechanism shown in FIG. 6;

FIG. 8 is a schematic view of a fan mounting and a partial structure of a vibration reduction mechanism provided in an exemplary embodiment of the present disclosure;

FIG. 9 is a partial cross-sectional view of a portion of the structure of a damping mechanism and fan mounting provided in an exemplary embodiment of the present disclosure;

fig. 10 is a schematic view of a partial structure of a vibration damping mechanism provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

100-fan, 101-through hole, 200-fan mounting seat, 201-positioning hole, 202-cover plate, 203-bottom plate, 300-vibration reduction ring, 301-body, 302-elastic bulge, 303-small head end, 304-large head end, 305-first part, 306-second part, 307-inner ring, 308-outer ring, 309-elastic rib, 310-lifting lug, 311-plug, 312-elastic limiting rib, 313-angular reinforcing rib, 401-shaft part, 402-first elastic buffer part, 403-second elastic buffer part and 404-traction shaft.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms of orientation such as "upper and lower" are defined according to the installation convention, and specifically refer to the drawing direction of fig. 9, "top and bottom" is the upper and lower in the drawing direction of fig. 9, "inner and outer" are according to the contour of the corresponding component. In addition, the terms "first, second, etc. used in the present disclosure are intended to distinguish one element from another, and are not necessarily sequential or important. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

Referring to fig. 1 and 2, the present disclosure provides a fan damping mechanism for being disposed between a fan 100 and a fan mounting seat 200, the damping mechanism may include a damping ring 300 having elasticity, the damping ring 300 may be configured to be elastically sleeved on an outer circumference of the fan 100 and may be interposed between an outer wall of the fan 100 and an inner wall of the fan mounting seat 200, and may be configured to be pressed by the fan 100 and the fan mounting seat 200 after the fan 100 is mounted to generate an elastic pre-pressure for pressing the fan 100 and the fan mounting seat 200, where heights of the damping ring 300, the fan mounting seat 200, and the fan 100 in an axial direction of the fan 100 may be set to be the same to ensure that each position in a circumferential direction of the fan 100 is damped by the damping ring 300. Specifically, when the damping ring 300 is sleeved on the outer circumference of the fan 100, the damping ring 300 is tightly wrapped on the outer circumference of the fan 100 under the elastic action; after vibration damping ring 300 and fan 100 are mounted to fan mount 200, fan mount 200 presses vibration damping ring 300, so that there is a large friction force between vibration damping ring 300 and fan mount 200, thereby achieving a tight mounting of vibration damping ring 300 and fan mount 200. Here, when the fan 100 is configured as a square as shown in the drawing, both the damping ring 300 and the fan mount 200 may be configured as a square with matching shapes, and in the embodiment of the present disclosure, the fan 100 may also be configured as other shapes, such as a circle.

Through the technical scheme, the damping ring 300 of the damping mechanism provided by the embodiment of the disclosure can be extruded and installed between the fan 100 and the fan mounting seat 200 by utilizing the elastic action of the damping ring, the installation process is simple and convenient, the damping ring has higher reliability, and the fan 100 is ensured not to fall off easily. Moreover, the extruded installation mode does not greatly affect the damping effect of the vibration damping ring 300, thereby effectively ensuring the vibration damping and noise reducing effects of the vibration damping mechanism and avoiding the influence of vibration on the operation of other components around the fan 100.

In the embodiment of the present disclosure, the damping ring 300 may be integrally formed of a viscoelastic material, such as rubber, and the viscoelastic material has viscosity and elasticity, the elastic damping may play a role of damping, and may also be mounted by pressing, and the viscosity may increase the friction between the damping ring 300 and the fan 100 and the fan mount 200 to limit the position of the fan 100 or the fan mount 200 relative to the damping ring 300. The vibration damping ring 300 after being integrally formed is better in integrity, and the risk of breaking and damaging in the using process is reduced.

According to an embodiment of the present disclosure, referring to fig. 2, the damping ring 300 may include a body 301 for being fitted around the outer circumference of the fan 100, and an elastic protrusion 302 protruding from a circumferential wall of the body 301. One of the body 301 and the elastic protrusion 302 may generate an elastic pre-pressure for pressing the fan 100, and the other may generate an elastic pre-pressure for pressing the fan mounting base 200.

As shown in fig. 2, an elastic protrusion 302 may be formed on the outer circumferential wall of the body 301 and protrude outward for being able to be pressed inward by the fan mount 200 after the fan 100 is mounted, and the body 301 is able to be pressed outward by the fan 100; or an elastic protrusion may be formed on an inner circumferential wall of the body 301 and protruded inwardly for being pressed outwardly by the fan 100 after the fan 100 is mounted, and the body 301 may be pressed inwardly by the fan mount 200. By the arrangement of the elastic protrusions 302, elastic pre-pressure along with the fan 100 and the fan mounting seat 200 can be provided, the fan 100 is ensured not to fall off easily after being mounted in place, the damping effect of the damping ring 300 can be improved, and the damping capacity of the damping mechanism is improved. It should be noted that the number of the elastic protrusions 302 may be plural, such as two elastic protrusions arranged in a row on each sidewall as shown in fig. 2, or may be other numbers and other arrangements, which are not limited herein.

Further, the elastic protrusion 302 may be configured as a hollow structure in a spherical protrusion, and when the elastic protrusion 302 is provided on the outer side wall of the body 301, the hollow structure may be open at one end toward the body 301, that is, at one side toward the inner side of the body 301; when the elastic protrusion 302 is provided on the inner sidewall of the body 301, it may be opened at a side toward the outer side of the body 301. By providing a hollow structure and opening, a larger compression space may be provided to increase damping and thereby improve the degree of control over the vibration of the fan 100. Here, the elastic protrusion 302 may be configured in a square shape, a tapered shape, or other shapes, in addition to the spherical shape.

According to another embodiment of the present disclosure, referring to fig. 3 to 5, the damping ring 300 may be configured as a tapered ring gradually changing in size in an axial direction of the fan 100 (i.e., in an up-down direction of fig. 5), so that at least the small head end 303 can be pressed outward by the fan 100 and at least the large head end 304 can be pressed inward by the fan mount 200 after the fan 100 is mounted. At least the inner dimensions of the small head end 303 may be set smaller than the outer dimensions of the fan 100, so that at least the small head end 303 can be pressed outwards by the fan 100 to achieve the mounting of the fan 100 with the damping ring 300; it is also possible to set at least the outer dimensions of large head end 304 to be larger than the inner dimensions of fan mount 200, so that at least large head end 303 can be pressed by fan mount 200 to achieve the mounting of damping ring 300 with fan mount 200. Here, it is understood that the inner contour dimension of large head end 304 may also be set smaller than the outer contour dimension of fan 100 so that the entire damping ring 300 can be pressed outward by fan 100, and the outer contour dimension of small head end 303 may also be set larger than the inner contour dimension of fan mount 200 so that the entire damping ring 300 can be pressed inward by fan mount 200. In the disclosed embodiment, the wedge ring may also be sized to be partially pressed outward by the fan 100 and partially pressed inward by the fan mount 200.

Wherein the wedge ring may be configured to taper from top to bottom as shown in fig. 5, the small end 303 of the wedge ring may be disposed at the bottom end, and the large end 304 of the wedge ring may be disposed at the top end, that is, when the wedge ring is installed in the fan mount 200 together with the fan 100, the small end 303 of the wedge ring may play a role of guiding to first enter the fan mount 200 and then drive the large end 304 to be installed therein. In other embodiments, the wedge ring may be configured to taper from bottom to top as opposed to fig. 5. Here, the wedge ring may be configured to have a uniform thickness from top to bottom, or may have a thickness that is gradually reduced from top to bottom as shown in fig. 5, so that the inner side of the wedge ring may be completely fitted with the fan 100 to ensure that the fan 100 may be stably installed.

According to still another embodiment of the present disclosure, referring to fig. 6 and 7, the damping ring 300 may be configured as a corrugated ring that undulates in a radial direction, for a first portion 305 of the corrugated ring protruding toward a sidewall of the fan 100 to be pressed outward by the fan 100 and a second portion 306 of the corrugated ring protruding toward a sidewall of the fan mount 200 to be pressed inward by the fan mount 200 after the fan 100 is mounted. With the wave-shaped ring form, a certain extrusion space is formed between the first part 305 and the second part 306 which are respectively convex towards two sides, so that greater elasticity and damping can be provided for the installation of the fan 100, and the vibration control degree of the fan 100 is improved. Wherein, each side of the wave-shaped ring can be provided with a plurality of first parts 305 and second parts 306, and the sizes of the bulges of the first parts 305 and the second parts 306 can be adjusted according to the factors of the extrusion degree and the vibration degree of the actual fan 100, etc.

The damping ring 300 provided by the embodiment of the present disclosure may be an annular structure with a solid wall, or the damping ring 300 may also include an inner ring 307 and an outer ring 308 arranged at intervals in the radial direction, and a plurality of elastic ribs 309 connected with the outer ring 308 are arranged on the circumferential direction of the inner ring 307. When the elastic projection 302 is provided, the elastic projection 302 may be provided on the inner ring 307 or the outer ring 308, or may penetrate through the inner ring 307 and the outer ring 308; when the vibration damping ring 300 is configured as the above-described wave ring, the inner ring 307 and the outer ring 308 may each be configured as a wave ring having uniform undulations; when the damping ring 300 is configured as a wedge-shaped ring, the inner ring 307 and the outer ring 308 may each be configured as a wedge-shaped structure, or referring to fig. 3 to 5, the inner ring 307 may be configured as a square ring, the outer ring 308 is configured as a wedge-shaped ring, the bottoms of the inner ring 307 and the outer ring 308 may be integrally connected, and the spaced regions of the inner ring 307 and the outer ring 308 may be connected by wedge-shaped elastic ribs 309. By arranging the damping ring 300 as the inner ring 307 and the outer ring 308 which are spaced apart from each other, when the inner ring 307 and the outer ring 308 are pressed, the spaced region therebetween can provide a pressing space to provide greater elasticity and damping for the fan 100 and the fan mount 200, and the elastic ribs 309 arranged between the inner ring 307 and the outer ring 308 can provide connection and support when the damping ring 300 is pressed, thereby ensuring better integrity and support effect of the damping ring 300.

The vibration damping mechanism in the embodiments of the present disclosure may be one of the above embodiments, or may be a combination of several features in the above embodiments, that is, features such as the elastic protrusions, the wedge rings, the corrugated rings, and the inner and outer rings at intervals may be arbitrarily combined.

With continued reference to fig. 3 to 5, a lifting lug 310 capable of being hung on the side wall of the fan mounting base 200 may be formed on the side wall of the vibration damping ring 300, and a plug 311 is formed on the lifting lug 310 and is used for being plugged into the positioning hole 201 on the fan mounting base 200 after the fan 100 is mounted. The lifting lug 310 may be integrally formed at the top end of the damping ring 300, and the lifting lug 310 may also be made of a viscoelastic material, after the fan 100 is installed, the lifting lug 310 may be pressed on the outer sidewall of the fan mounting seat 200, and the plug 311 may be pressed to extend into the positioning hole 201; alternatively, the outer contour of the plug 311 may be larger than the inner contour of the positioning hole 201, and the plug 311 may be mounted in the positioning hole 201 in a compressed manner after the fan 100 is mounted. When the fan 100 needs to be disassembled, the plug 311 can be pulled out from the positioning hole 201, and the damping ring 300 can be pulled out together with the fan 100 by pulling the lifting lug 310, so that the convenience of disassembling and assembling the fan 100 is improved. The lifting lugs 310 may be disposed on opposite sides of the damping ring 300, so as to balance the force applied when the damping ring 300 is pulled out.

In order to better limit the fan 100 in the axial direction with respect to the vibration damping ring 300, referring to fig. 2, both end sides of the vibration damping ring 300 in the axial direction of the fan 100 may be provided with elastic limit ribs 312 for stopping the fan 100 after the fan 100 is mounted. The elastic stopper rib 312 may be integrally formed with the damping ring 300. When the fan 100 is installed in the vibration damping ring 300, the elastic restricting ribs 312 may be first pulled apart to overcome the elastic force of the elastic restricting ribs 312 and be installed therein, and then the elastic restricting ribs 312 are restored to the original state to restrict the axial direction of the fan 100. Here, the elastic limit ribs 312 may be uniformly distributed in the circumferential direction of the damping ring 300, and when the damping ring 300 has a square structure, the elastic limit ribs 312 may be arranged at four corners of the square structure.

Referring to fig. 6 and 7, an angular position reinforcing rib 313 may be provided at a corner of an inner side of the damping ring 300. The angular reinforcing rib 313 may also be made of a viscoelastic material and is integrally formed with the damping ring 300, and the reinforcing rib may provide better wrapping performance for the fan 100 in the circumferential direction of the fan 100, provide better attaching force between the damping ring 300 and the fan 100, ensure stable installation of the fan 100, and avoid falling off in the working process.

Typically, the top and bottom of the fan mount 200 will be provided with a cover plate and a base plate, respectively, and the fan 100 and the damping ring 300 will be disposed within the fan mount enclosed by the cover plate and the base plate. In the present disclosure, for clarity of structure, only the structure of the cover plate 202 is shown in fig. 9, and as shown in fig. 9, based on the arrangement of the cover plate 202 and the base plate 203, the vibration damping mechanism may further include a shaft portion 401 for penetrating the fan 100 and a first elastic buffer portion 402 and a second elastic buffer portion 403 respectively formed at both ends of the shaft portion 401, for the first elastic buffer portion 402 to be disposed in contact between the cover plate 202 of the fan mount and the top end of the fan 100 after the fan 100 is mounted, and the second elastic buffer portion 403 to be disposed in contact between the base plate 203 of the fan mount and the bottom end of the fan 100. The first elastic buffer portion 402 and the second elastic buffer portion 403 are used to axially limit the fan 100 relative to the fan mounting base 200, so as to prevent the fan 100 from moving up and down along the drawing direction shown in fig. 9, and on the other hand, the damping effect in the axial direction of the fan 100 can be achieved through the damping effect of the elastic buffer portions, and in combination with the damping effect of the damping ring 300 in the circumferential direction of the fan 100, the damping mechanism in the embodiment of the present disclosure can perform omnidirectional damping on the fan 100, reduce noise, and avoid the influence of vibration on the operation of other components.

Further, referring to fig. 2 and 3, a grille for ventilation is usually disposed on the bottom plate 203, and in practical applications, the fan 100 needs to be spaced from the grille by a certain distance to ensure sufficient air volume to pass through, and to prevent the generation of operating noise due to the close distance. Therefore, the second elastic buffer portion 403 in the embodiment of the present disclosure is for contact-providing between the base plate having the grill and the fan 100, and is configured such that the distance between the grill and the fan 100 is maintained not less than a preset threshold. The distance between the fan 100 and the grill is not too small by the arrangement of the second elastic buffer 403, thereby avoiding the possible problems described above. Here, the preset threshold may be adjusted according to actual requirements, for example, may be 4mm, and the height of the second elastic buffer 403 after being compressed may be set to be not less than the preset threshold.

Referring to fig. 8 to 10, the second elastic buffer 403 may be configured as a hollow sphere, one end of which in the radial direction is connected with the shaft part 401, and the other end of which is connected with a detachable pulling shaft 404, and the pulling shaft 404 is configured to be detached from the hollow sphere after pulling the hollow sphere from one end to the other end of the through hole 101 axially extending on the fan 100. The stopper buffer is attached to the fan 100, taking the direction of the drawing of fig. 9 as an example. First, the pulling shaft 404 in fig. 10 is extended from the upper end of the through hole 101 of the fan 100, and the length of the pulling shaft 404 may be set to be greater than the length of the through hole 101, so that the pulling shaft 404 may be pulled at the lower end of the through hole 101 after the pulling shaft 404 is extended into the through hole 101, and then the hollow ball of the second elastic buffer 403 may be pressed to pass through the through hole 101, and further may be stopped at the lower end of the through hole 101, while the first elastic buffer 402 may be left at the upper end of the through hole 101 for stopping, where the first elastic buffer 402 may be configured as a flat structure attached to the lower surface of the cover plate 202. After being installed in place, the pull shaft 404 may be sheared from the hollow ball using a cutter or other tool so that the hollow ball is disposed between the bottom plate 203 and the bottom end of the fan 100. The shaft 401 may also be configured as a hollow shaft to increase the extrusion space and increase the damping.

The embodiment of the present disclosure also provides a fan assembly, and referring to fig. 1 and 2, the fan assembly may include a fan 100 and a fan mounting base 200, and a vibration reduction mechanism disposed between the fan 100 and the fan mounting base 200, where the vibration reduction mechanism is the above-mentioned fan vibration reduction mechanism. The fan assembly has all the advantages of the fan vibration reduction mechanism, and the details are not repeated herein. The fan assembly in the embodiments of the present disclosure may be applied to various suitable fields.

The embodiment of the present disclosure further provides an unmanned aerial vehicle, the unmanned aerial vehicle may include a body, a heating device installed on the body, and a fan assembly installed on the body corresponding to the position of the heating device, the heating device may be a chip or other power components, wherein the fan assembly is the above fan assembly, the fan mount pad 200 may be installed on the body by a separately arranged component, or the fan mount pad 200 may be formed on the body as a part of the structure of the body. When installing this fan assembly on unmanned aerial vehicle, even install accurate device around the fan assembly, because the damping mechanism that this disclosure provided can provide great damping, absorb fan 100's vibration effectively to can avoid the influence to accurate device, if can avoid producing the influence to unmanned aerial vehicle flight control system or visual system etc. moreover can reduce the unmanned aerial vehicle noise again.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A fan vibration damping mechanism is arranged between a fan (100) and a fan mounting seat (200), and is characterized in that the vibration damping mechanism comprises a vibration damping ring (300) with elasticity, the vibration damping ring (300) is configured to be capable of being elastically sleeved on the periphery of the fan (100) and capable of being clamped between the outer wall of the fan (100) and the inner wall of the fan mounting seat (200) and used for being squeezed by the fan (100) and the fan mounting seat (200) after the fan (100) is mounted to generate elastic pre-pressure for pressing the fan (100) and the fan mounting seat (200).

2. The fan dampening mechanism of claim 1, wherein the dampening ring (300) is integrally formed of a viscoelastic material.

3. The mechanism as claimed in claim 1, wherein the damping ring (300) comprises a body (301) for fitting around the outer circumference of the fan (100), and an elastic protrusion (302) protruding from the circumferential wall of the body (301).

4. The fan damping mechanism according to claim 3, characterized in that the elastic protrusion (302) is formed on the outer peripheral wall of the body (301) and protrudes outward for being able to be pressed inward by the fan mount (200) after the fan (100) is mounted, and the body (301) is able to be pressed outward by the fan (100).

5. The fan damping mechanism according to claim 4, characterized in that the elastic protrusion (302) is configured as a hollow structure in the form of a spherical protrusion, and the hollow structure is open at one end toward the body (301).

6. The fan damping mechanism according to claim 1, characterized in that the damping ring (300) is configured as a tapered ring with a gradually changing dimension in the axial direction of the fan (100) for enabling at least a small head end (303) to be pressed outwardly by the fan (100) and at least a large head end (304) to be pressed inwardly by the fan mount (200) after the fan (100) is mounted.

7. The fan damping mechanism according to claim 1, characterized in that the damping ring (300) is configured as a radially undulating corrugated ring, for which a first portion (305) of the corrugated ring projecting towards the side wall of the fan (100) can be pressed outwards by the fan (100) after the fan (100) is mounted, and a second portion (306) of the corrugated ring projecting towards the side wall of the fan mount (200) can be pressed inwards by the fan mount (200).

8. The fan damping mechanism according to claim 1, characterized in that the damping ring (300) comprises an inner ring (307) and an outer ring (308) which are arranged at intervals in the radial direction, and a plurality of elastic ribs (309) connected with the outer ring (308) are arranged on the circumference of the inner ring (307).

9. The fan damping mechanism according to claim 1, characterized in that a lifting lug (310) capable of being hung on the side wall of the fan mounting seat (200) is formed on the side wall of the damping ring (300), and a plug (311) is formed on the lifting lug (310) and is used for being plugged into the positioning hole (201) on the fan mounting seat (200) after the fan (100) is mounted.

10. The fan damping mechanism according to claim 1, wherein both end sides of the damping ring (300) in the axial direction of the fan (100) are provided with elastic stopper ribs (312) for stopping the fan (100) after the fan (100) is mounted.

11. The fan damping mechanism according to claim 1, characterized in that an angular position reinforcing rib (313) is arranged at the corner of the inner side of the damping ring (300).

12. The fan damping mechanism according to any one of claims 1 to 11, further comprising a shaft portion (401) for penetrating the fan (100) and a first elastic damping portion (402) and a second elastic damping portion (403) respectively formed at both ends of the shaft portion (401), wherein the first elastic damping portion (402) is disposed in contact between the cover plate (202) of the fan mount and the top end of the fan (100) after the fan (100) is mounted, and the second elastic damping portion (403) is disposed in contact between the bottom plate (203) of the fan mount and the bottom end of the fan (100).

13. The fan damping mechanism according to claim 12, characterized in that the second elastic buffer portion (403) is for contact-providing between the base plate having a grill and the fan (100), and is configured such that a distance between the grill and the fan (100) is kept not less than a preset threshold value.

14. The fan damping mechanism according to claim 12, characterized in that the second elastic buffer portion (403) is configured as a hollow sphere, one end of the hollow sphere in the radial direction is connected with the shaft portion (401), and the other end is connected with a detachable pulling shaft (404), and the pulling shaft (404) is configured to be detached from the hollow sphere after pulling the hollow sphere from one end to the other end of a through hole (101) extending axially on the fan (100).

15. A fan assembly comprising a fan (100) and a fan mount (200), and a vibration damping mechanism disposed between the fan (100) and the fan mount (200), the vibration damping mechanism being as claimed in any one of claims 1 to 14.

16. A drone comprising a body, a heat generating device mounted on the body, and a fan assembly mounted on the body in a position corresponding to the heat generating device, characterized in that the fan assembly is a fan assembly according to claim 15, the fan mount (200) being mounted or formed on the body.