CN114837988B

CN114837988B - Fan chassis and fan

Info

Publication number: CN114837988B
Application number: CN202210653308.0A
Authority: CN
Inventors: 冉宏宇; 陈其; 刘义刚; 路尧远; 刘辰辰
Original assignee: Suzhou Beiang Intelligent Technology Co ltd
Current assignee: Suzhou Beiang Intelligent Technology Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2023-06-16
Anticipated expiration: 2042-06-09
Also published as: CN114837988A; TWI828236B; TW202348925A; JP2023181040A; JP7230266B1

Abstract

The application relates to the technical field of household appliances, and provides a fan chassis and fan, wherein, the fan chassis includes: the upper surface of the chassis is provided with a mounting hole; the first end of the push rod is positioned in the mounting hole, and the second end of the push rod is used for being connected with the fan blade assembly of the fan; the driving assembly is positioned in the chassis, is connected with the first end of the push rod and is used for driving the push rod to rotate relative to the chassis so as to drive the fan blade assembly to rotate. Through the technical scheme of this application, the noise that produces when can effectively reduce the flabellum subassembly of fan and rotate, and product simple structure, the assembly of being convenient for, whole comparatively pleasing to the eye.

Description

Fan chassis and fan

Technical Field

The application relates to the technical field of household appliances, in particular to a fan chassis and a fan.

Background

With the promotion of consumption level, the fan is used as a necessary electrical appliance for families, and the requirements of people on the fan are higher and higher, and the fan has more functions and better performance, so that the fan is a constant pursuit of users.

At present, the traditional fan shakes the head through the blade component of the fan, and the shaking mode is not only loud in noise, but also complex in structure and unattractive.

Disclosure of Invention

An object of an embodiment of the present application is to provide a fan chassis for reducing noise generated when a fan rotates.

In a first aspect, an embodiment of the present application provides a fan chassis, including: the upper surface of the chassis is provided with a mounting hole; the first end of the push rod is positioned in the mounting hole, and the second end of the push rod is used for being connected with the fan blade assembly of the fan; the driving assembly is positioned in the chassis, is connected with the first end of the push rod and is used for driving the push rod to rotate relative to the chassis so as to drive the fan blade assembly to rotate.

In the above embodiments, the fan chassis includes the chassis, the pushrod, and the drive assembly. Wherein, be provided with the mounting hole that is used for installing the push rod on the chassis, the first end of push rod is located the mounting hole, the second end of push rod is used for linking to each other with the flabellum subassembly of fan, drive assembly is located the chassis, and link to each other with the first end of push rod, can drive the push rod when drive assembly moves and do circular motion, thereby drive the flabellum subassembly and rotate, in order to realize the action of shaking the head of fan, the mode that the flabellum subassembly of having cancelled current fan shakes the head relative to the push rod, noise that produces when the flabellum subassembly shakes the head has been reduced, and product simple structure, the installation of being convenient for, and the pleasing to the eye degree of product has effectively been improved.

The position of the mounting hole is not limited, and the mounting hole can be arranged in the middle or at the edge of the upper surface of the chassis.

It can be appreciated that the chassis is a housing structure including an upper housing and a lower housing, an accommodating space is provided between the upper housing and the lower housing, and the driving assembly is installed in the accommodating space.

In some embodiments, the drive assembly comprises: the driving piece and with the drive assembly that the driving piece links to each other, drive assembly with the first end fixed connection of push rod, the driving piece drive assembly moves, so as to drive the push rod is relative the chassis rotates.

In the above embodiment, the driving component includes a driving element and a transmission component connected to the driving element, and when the driving element drives the transmission component to move by connecting the first end of the push rod with the transmission component, the push rod can be driven to rotate, and the driving element may be, for example, a stepping motor or a motor, and the transmission component may be a gear component, or a gear and a chain cooperate with each other. It can be understood that when the transmission component is a gear and a chain, the gear is connected with the driving component, the chain is meshed with the gear, and the meshing teeth are arranged on the periphery side of the push rod and meshed with the chain, so that when the driving component drives the gear to rotate, the push rod can be driven by the chain to rotate relative to the chassis, and further the fan blade component is driven to rotate.

In some embodiments, the transmission assembly includes a gear assembly including a drive gear and a driven gear meshed with the drive gear; the driving gear is connected with the driving piece, the driven gear is fixedly connected with the first end of the push rod, and the driving piece is suitable for driving the driving gear to rotate so as to drive the driven gear and the push rod to rotate.

In the above embodiment, the transmission assembly includes a gear assembly, and the gear assembly includes a driving gear connected to the driving member and a driven gear meshed with the driving gear, and by fixedly connecting the first end of the push rod with the driven gear, when the driving member drives the driving gear to rotate, the driven gear and the push rod can be driven to rotate, and the structure and the original structure are simpler and easy to implement.

It will be appreciated that the driving gear and the driven gear are both horizontally disposed.

In some embodiments, further comprising: the bearing assembly is located in the chassis, the bearing assembly comprises a bearing and a bearing fixing piece, the bearing fixing piece is arranged on the outer peripheral side of the bearing and fixedly connected with the chassis and used for fixing the bearing, and the first end of the push rod is in tight fit connection with the inner peripheral side of the bearing.

In the above embodiment, the bearing assembly is disposed in the chassis, and the first end of the push rod is tightly matched and connected with the inner peripheral side of the bearing, so that the stability of the push rod during rotation can be improved, and the stability of the blade assembly of the fan during rotation can be improved.

Specifically, the bearing fixing piece is the mounting, is provided with the fixed slot in the chassis, and the bearing fixing piece is located in the fixed slot to with chassis fixed connection, and the middle part of bearing fixing piece is equipped with the spacing groove that is used for fixed bearing, and the bearing is located the spacing inslot, thereby helps improving reliability and the stability of bearing installation.

In some embodiments, the bearing fixture is provided with a communication groove along an axial direction of the push rod; the driven gear is provided with a connecting part, and the connecting part is positioned in the communication groove and fixedly connected with the first end of the push rod.

In the above embodiment, the communicating groove is formed in the bearing fixing member, and the bearing is fixedly arranged in the communicating groove, so that the connecting portion of the driven gear can be fixedly connected with the first end of the push rod, and further the driven gear can drive the push rod to rotate relative to the chassis.

The connecting part is exemplified by a connecting column and the like formed by locally protruding one side of the driven gear towards the push rod.

It can be understood that the communicating groove is internally provided with a limit groove, and the bearing is fixedly arranged in the limit groove.

In some embodiments, a first gap is formed between the connecting portion and the inner wall surface of the communication groove, and the first gap is set in a range of 0.1mm to 0.5 mm.

In the above embodiment, through being provided with first clearance between the internal face of connecting portion and intercommunication groove to guaranteed that driven gear's connecting portion inserts the intercommunication inslot and can drive the push rod and rotate when linking to each other with the first end of push rod, when first clearance is too little, cause the dead phenomenon of card to appear between connecting portion and the intercommunication groove easily, when first clearance value is too big, then the push rod takes place great rocking again when rotating, consequently set up first clearance value in 0.1mm ~0.5 mm's within range, in order to avoid taking place the dead phenomenon of card between connecting portion and the intercommunication groove, and the rocking phenomenon that produces when reducing the push rod and rotate.

In some embodiments, a first annular groove is formed in one side, facing the bearing fixing piece, of the driven gear, a plurality of first arc-shaped grooves are formed in one side, facing the driven gear, of the bearing fixing piece, the first arc-shaped grooves are arranged at intervals, the first arc-shaped grooves correspond to the first annular grooves, and balls are arranged between the first arc-shaped grooves and the first annular grooves.

In the above embodiment, the first annular groove is formed in the driven gear on one side facing the bearing fixing member, the first arc grooves are formed in the bearing fixing member on one side facing the driven gear, the first arc grooves are formed in intervals and correspond to the first annular groove, and the balls are arranged between the first arc grooves and the first annular groove, so that when the driven gear drives the push rod to rotate, the balls can play a role in supporting and preventing shaking, shaking generated when the driven gear rotates can be further reduced, and stability of the rotation of the push rod is further improved.

In some embodiments, a second gap is formed between the first end of the push rod and the inner peripheral surface of the mounting hole, and the second gap is set in a range of 0.1 mm-0.5 mm.

In the above embodiment, the second gap is formed between the outer peripheral surface of the first end of the push rod and the inner peripheral surface of the mounting hole, so that the push rod can rotate relative to the chassis when being inserted into the mounting hole, when the second gap is too small, the push rod and the mounting hole of the chassis are easy to be blocked, when the second gap is too large, the push rod is easy to shake greatly when rotating, and therefore the second gap is set in the range of 0.1 mm-0.5 mm, the blocking phenomenon between the push rod and the mounting hole is avoided, and the shaking phenomenon generated when the push rod rotates is reduced.

In some embodiments, a push rod anti-shake member is sleeved on the outer peripheral side of the push rod, and the push rod anti-shake member is positioned at one end of the push rod, which is close to the chassis; the chassis is provided with a second annular groove towards one side of the push rod anti-shaking piece, one side of the push rod anti-shaking piece is provided with a plurality of second arc grooves arranged at intervals, the second arc grooves correspond to the second annular groove, and balls are arranged between the second arc grooves and the second annular groove.

In the above embodiment, the push rod anti-shake member is sleeved on the outer peripheral side of the push rod, the second annular groove is arranged at the bottom of the push rod anti-shake member, a plurality of second arc grooves are arranged on the outer peripheral side of the mounting hole of the chassis, the plurality of second arc grooves are arranged at intervals and correspond to the positions of the second annular groove, and balls are also arranged between the plurality of second arc grooves and the second annular groove, so that when the driven gear drives the push rod to rotate, the plurality of balls can play a role in supporting and anti-shake, and shaking generated when the driven gear drives the push rod to rotate can be further reduced, so that the stability of the rotation of the push rod is further improved.

In a second aspect, embodiments of the present application provide a fan, including: a fan blade assembly; and a fan chassis according to any of the embodiments of the first aspect, the second end of the pushrod being connected to the fan blade assembly.

The fan provided in the second embodiment of the present application, because of including the fan chassis in any one of the first embodiments, has the technical effects in any one of the foregoing embodiments, and will not be described herein again.

The fan chassis that this first aspect embodiment provided has cancelled the mode that the relative push rod of flabellum subassembly rotated and shake the head in the current fan, but with the one end fixed connection of flabellum subassembly and push rod to insert the mounting hole on chassis with the other end of push rod, and utilize drive assembly drive push rod to do circumference or semi-circumference rotation relative to the chassis, thereby realize driving flabellum subassembly and rotate, not only help reducing the noise that the relative push rod of flabellum subassembly produced when rotating and shake the head, and product simple structure, the installation of being convenient for, and improved the holistic aesthetic measure of product.

Additional structures and advantages of the disclosure will be set forth in the description which follows, or may be learned by practice of the techniques of the disclosure, as set forth hereinafter, or as set forth hereinafter.

In order to make the above objects, structures and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of a fan chassis according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of an assembled structure of a fan chassis according to some embodiments of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a fan chassis provided in accordance with some embodiments of the present application;

FIG. 4 is a partially exploded view of a fan chassis provided in accordance with some embodiments of the present application;

FIG. 5 is a schematic top view of a driven gear according to some embodiments of the present disclosure;

FIG. 6 is a schematic bottom view of a bearing mount according to some embodiments of the present disclosure;

FIG. 7 is a schematic top view of a chassis provided in some embodiments of the present application;

FIG. 8 is a schematic bottom view of a pushrod shield provided in accordance with some embodiments of the present application;

fig. 9 is a schematic structural diagram of a fan according to some embodiments of the present disclosure.

Reference numerals:

a fan 1000;

a fan chassis 100; a fan blade assembly 200;

a push rod 10; a chassis 20; a drive assembly 30; a bearing assembly 40; a ball 50;

a push rod anti-shake member 101; a first protrusion 102; an upper case 201; a lower housing 202; a mounting hole 203; a driving member 301; a drive gear 302; a driven gear 303; a bearing fixture 401; a bearing 402;

a second arcuate slot 1011; a second annular groove 2031; a connection portion 3031; a second protrusion 3032; a first annular groove 3033; a first recess 3034; a communication groove 4011; a first arcuate slot 4012.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or a point connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "two" is two or more.

Referring to fig. 1 and 2, an embodiment of a first aspect of the present application provides a fan chassis 100, including: a chassis 20, the upper surface of the chassis 20 is provided with a mounting hole 203; a pushrod 10, a first end of the pushrod 10 being positioned within the mounting aperture 203, a second end of the pushrod 10 being adapted to be coupled to the fan blade assembly 200; the driving assembly 30 is located in the chassis 20, and the driving assembly 30 is connected to the first end of the push rod 10, and is used for driving the push rod 10 to rotate relative to the chassis 20 so as to drive the fan blade assembly 200 to rotate.

In the above embodiment, the fan chassis 100 includes the chassis 20, the pushrod 10, and the drive assembly 30. Wherein, be provided with the mounting hole 203 that is used for installing push rod 10 on the chassis 20, the first end of push rod 10 is located mounting hole 203, the second end of push rod 10 is used for linking to each other with the flabellum subassembly 200 of fan, drive assembly 30 is located the chassis 20, and link to each other with the first end of push rod 10, drive assembly 30 can drive push rod 10 and do circular motion when moving, thereby drive flabellum subassembly 200 and rotate, in order to realize the action of shaking the head of fan, the mode that the flabellum subassembly 200 of having cancelled current fan shakes the head relative to push rod 10, noise that produces when having reduced flabellum subassembly 200 and product simple structure, the installation of being convenient for, and effectively improved the aesthetic measure of product.

The location of the mounting hole 203 is not limited, and may be disposed at the middle or edge of the upper surface of the chassis 20.

It will be appreciated that the chassis 20 is a housing structure, and includes an upper housing 201 and a lower housing 202, and an accommodating space is provided between the upper housing 201 and the lower housing 202, and the driving assembly 30 is installed in the accommodating space.

Referring to fig. 1, in some embodiments, the driving assembly 30 includes: the driving piece 301 and the transmission component connected with the driving piece 301, the transmission component is fixedly connected with the first end of the push rod 10, and the driving piece 301 drives the transmission component to move so as to drive the push rod 10 to rotate relative to the chassis 20.

In the above embodiment, the driving assembly 30 includes the driving member 301 and a transmission assembly connected to the driving member 301, and when the driving member 301 drives the transmission assembly to move by connecting the first end of the push rod 10 to the transmission assembly, the push rod 10 can be driven to rotate, and the driving member 301 may be a stepping motor or a motor, for example, and the transmission assembly may be a gear assembly, or a gear and a chain cooperate with each other, etc. It will be appreciated that when the transmission component is a gear and a chain, the gear is connected to the driving component 301, the chain is meshed with the gear, and the engaging teeth may be disposed on the outer periphery of the push rod 10 and meshed with the chain, so that when the driving component 301 drives the gear to rotate, the push rod 10 can be driven by the chain to rotate relative to the chassis 20, and further the fan blade component 200 can be driven to rotate.

Referring to fig. 1, in some embodiments, the transmission assembly includes a gear assembly including a driving gear 302 and a driven gear 303 meshed with the driving gear 302; the driving gear 302 is connected to the driving member 301, the driven gear 303 is fixedly connected to the first end of the push rod 10, and the driving member 301 is adapted to drive the driving gear 302 to rotate so as to drive the driven gear 303 and the push rod 10 to rotate.

In the above embodiment, the transmission assembly includes a gear assembly, the gear assembly includes a driving gear 302 connected to the driving member 301 and a driven gear 303 meshed with the driving gear 302, and by fixedly connecting the first end of the push rod 10 with the driven gear 303, when the driving member 301 drives the driving gear 302 to rotate, the driven gear 303 and the push rod 10 can be driven to rotate, and the structure and the original structure are simple and easy to implement.

It will be appreciated that the driving gear 302 and the driven gear 303 are both horizontally disposed.

Referring to fig. 1 and 3, in some embodiments, the method further includes: the bearing 402 assembly 40 is positioned in the chassis 20, the bearing 402 assembly 40 comprises a bearing 402 and a bearing fixing piece 401, the bearing fixing piece 401 is arranged on the outer peripheral side of the bearing 402 and fixedly connected with the chassis 20 and used for fixing the bearing 402, and the first end of the push rod 10 is in tight fit connection with the inner peripheral side of the bearing 402.

In the above embodiment, the bearing 402 assembly 40 is disposed in the chassis 20, and the first end of the push rod 10 is tightly connected to the inner peripheral side of the bearing 402, so that the stability of the push rod 10 during rotation can be improved, and the stability of the fan blade assembly 200 during rotation can be improved.

Specifically, the bearing fixing member 401 is a fixing member, a fixing groove is formed in the chassis 20, the bearing fixing member 401 is disposed in the fixing groove and is fixedly connected with the chassis 20, a limiting groove for fixing the bearing 402 is formed in the middle of the bearing fixing member 401, and the bearing 402 is located in the limiting groove, so that reliability and stability of installation of the bearing 402 are improved.

Referring to fig. 1, 3 and 4, in some embodiments, the bearing fixing member 401 is provided with a communication groove 4011 along an axial direction of the push rod 10; the driven gear 303 is provided with a connection portion 3031, and the connection portion 3031 is located in the communication groove 4011 and is fixedly connected to the first end of the push rod 10.

In the above embodiment, by providing the communication groove 4011 on the bearing fixing member 401, the bearing 402 is fixedly provided in the communication groove 4011, so that the connection portion 3031 of the driven gear 303 can be fixedly connected with the first end of the push rod 10, and further it is possible to implement that the driven gear 303 drives the push rod 10 to rotate relative to the chassis 20.

Illustratively, the connection portion 3031 is a structure such as a connection post formed by partially protruding the driven gear 303 toward one side of the push rod 10, and the connection post is fixedly connected to the push rod 10 by a fastener such as a bolt. And the side of the connection portion 3031 facing the push rod 10 may be provided with a first recess 3034, and the side of the push rod 10 facing the connection portion 3031 may be provided with a first protrusion 102, and the first protrusion 102 is inserted into the second recess, so as to improve the connection reliability of the connection portion 3031 and the push rod 10. In addition, a second protrusion 3032 may be further provided at a side of the connection part 3031 facing the push rod 10, and a second groove may be further provided at a side of the push rod 10 facing the connection part 3031, and the second protrusion 3032 is inserted into the second groove to further improve the connection reliability of the connection part 3031 and the push rod 10. Among them, the first protrusion 102 and the second protrusion 3032 may be provided in a square or rectangular shape or the like to prevent relative rotation between the push rod 10 and the connection part 3031.

It can be appreciated that the communicating groove 4011 is provided therein with a limiting groove, and the bearing 402 is fixedly disposed in the limiting groove.

In some embodiments, the connection portion 3031 and the inner wall surface of the communication groove 4011 have a first gap therebetween, and the first gap is set in a range of 0.1mm to 0.5 mm.

In the above embodiment, the first gap is provided between the connection portion 3031 and the inner wall surface of the communicating groove 4011, so that the connection portion 3031 of the driven gear 303 is inserted into the communicating groove 4011 and is connected with the first end of the push rod 10, when the first gap is too small, the push rod 10 is easy to be blocked between the connection portion 3031 and the communicating groove 4011, when the first gap value is too large, the push rod 10 is easy to shake greatly during rotation, and therefore the first gap value is set in the range of 0.1mm to 0.5mm, so that the blocking phenomenon between the connection portion 3031 and the communicating groove 4011 is avoided, and the shaking phenomenon generated during rotation of the push rod 10 is reduced.

Referring to fig. 5 and 6, in some embodiments, a first annular groove 3033 is disposed on a side of the driven gear 303 facing the bearing fixing member 401, a plurality of first arc-shaped grooves 4012 disposed at intervals are disposed on a side of the bearing fixing member 401 facing the driven gear 303, the plurality of first arc-shaped grooves 4012 are disposed corresponding to the first annular groove 3033, and balls 50 are disposed between the first arc-shaped grooves 4012 and the first annular groove 3033.

In the above embodiment, by providing the first annular groove 3033 on the side of the driven gear 303 facing the bearing fixing member 401, and providing the plurality of first arc-shaped grooves 4012 on the side of the bearing fixing member 401 facing the driven gear 303, the plurality of first arc-shaped grooves 4012 are spaced apart and correspond to the positions of the first annular groove 3033, and the balls 50 are provided between the plurality of first arc-shaped grooves 4012 and the first annular groove 3033, thus, when the driven gear 303 drives the push rod 10 to rotate, the plurality of balls 50 play a role of supporting and preventing shaking, and shaking generated when the driven gear 303 rotates can be further reduced, so that the stability of the rotation of the push rod 10 is further improved.

In some embodiments, a second gap is formed between the first end of the push rod 10 and the inner peripheral surface of the mounting hole 203, and the second gap is set in a range of 0.1mm to 0.5 mm.

In the above embodiment, the second gap is formed between the outer peripheral surface of the first end of the push rod 10 and the inner peripheral surface of the mounting hole 203, so that the push rod 10 can rotate relative to the chassis 20 when being inserted into the mounting hole 203, when the second gap is too small, the push rod 10 and the mounting hole 203 of the chassis 20 are easy to be blocked, when the second gap is too large, the push rod 10 is easy to shake greatly when rotating, and therefore, the second gap is set within the range of 0.1 mm-0.5 mm, so as to avoid the blocking phenomenon between the push rod 10 and the mounting hole 203, and reduce the shaking phenomenon generated when the push rod 10 rotates.

Referring to fig. 1, 3, 7 and 8, in some embodiments, a push rod anti-shake member 101 is sleeved on the outer peripheral side of the push rod 10, and the push rod anti-shake member 101 is located at one end of the push rod 10 near the chassis 20; wherein, the chassis 20 is equipped with the second annular groove 2031 towards the push rod and prevents shaking one side of piece 101, and the push rod prevents shaking one side of piece 101 towards chassis 20 and is equipped with a plurality of second arc grooves 1011 that the interval set up, and a plurality of second arc grooves 1011 correspond to second annular groove 2031 and set up, and all are equipped with ball 50 between second arc groove 1011 and the second annular groove 2031.

In the above embodiment, the push rod anti-shake member 101 is sleeved on the outer peripheral side of the push rod 10, the second annular groove 2031 is provided at the bottom of the push rod anti-shake member 101, the plurality of second arc grooves 1011 are provided on the outer peripheral side of the mounting hole 203 of the chassis 20, the plurality of second arc grooves 1011 are arranged at intervals and correspond to the positions of the second annular groove 2031, and the balls 50 are also provided between the plurality of second arc grooves 1011 and the second annular groove 2031, so that when the driven gear 303 drives the push rod 10 to rotate, the plurality of balls 50 can play a role of supporting and preventing shake, and shake generated when the driven gear 303 drives the push rod 10 to rotate can be further reduced, so that the stability of the rotation of the push rod 10 is further improved.

Referring to fig. 9, in a second aspect, an embodiment of the present application provides a fan, including: a fan blade assembly 200; and the fan chassis 100 according to any of the first aspect embodiments, a second end of the pushrod 10 is connected to the fan blade assembly 200.

The fan according to the second embodiment of the present application, because of including the fan chassis 100 according to any one of the first embodiment, has the technical effects of any one of the above embodiments, and will not be described herein.

In the above embodiment, the blade assembly 200 of the fan may be hinged to the second end of the push rod 10, so that the blade assembly 200 can rotate up and down relative to the push rod 10 to adjust the blowing angle of the blade.

In all embodiments of the present application, "large" and "small" are relative terms, "more" and "less" are relative terms, "upper" and "lower" are relative terms, and the description of such relative terms is not repeated herein.

It is appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the present application," or "in one of the embodiments" means that a particular structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in this embodiment," "in an embodiment of the application," or "in one of the embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular structures, or characteristics may be combined in any suitable manner in one or both embodiments. Those skilled in the art will also appreciate that the embodiments described in the specification are all alternative embodiments and that the acts and modules referred to are not necessarily required in the present application.

In various embodiments of the present application, it should be understood that the size of the sequence numbers of the above processes does not mean that the execution sequence of the processes is necessarily sequential, and the execution sequence of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A fan chassis, comprising:

the upper surface of the chassis is provided with a mounting hole;

the first end of the push rod is positioned in the mounting hole, the second end of the push rod is used for being connected with a fan blade assembly of the fan, and a second gap is formed between the first end of the push rod and the inner peripheral surface of the mounting hole;

the driving assembly is positioned in the chassis, is connected with the first end of the push rod and is used for driving the push rod to rotate relative to the chassis so as to drive the fan blade assembly to rotate;

the drive assembly includes: the driving piece and the transmission assembly are connected with the driving piece, the transmission assembly is fixedly connected with the first end of the push rod, and the driving piece drives the transmission assembly to move so as to drive the push rod to rotate relative to the chassis;

the transmission assembly comprises a gear assembly, wherein the gear assembly comprises a driving gear and a driven gear meshed with the driving gear;

the driving gear is connected with the driving piece, the driven gear is fixedly connected with the first end of the push rod, and the driving piece is suitable for driving the driving gear to rotate so as to drive the driven gear and the push rod to rotate;

further comprises: the bearing assembly is positioned in the chassis and comprises a bearing and a bearing fixing piece, the bearing fixing piece is arranged on the outer peripheral side of the bearing and fixedly connected with the chassis and used for fixing the bearing, and the first end of the push rod is in tight fit connection with the inner peripheral side of the bearing;

the driven gear is provided with a first annular groove on one side facing the bearing fixing piece, a plurality of first arc grooves arranged at intervals are arranged on one side facing the driven gear, the plurality of first arc grooves are arranged corresponding to the first annular groove, and balls are arranged between the first arc grooves and the first annular groove;

the outer peripheral side of the push rod is sleeved with a push rod anti-shake piece, and the push rod anti-shake piece is positioned at one end of the push rod, which is close to the chassis;

wherein, a second annular groove is arranged on one side of the chassis facing the push rod anti-shake piece, a plurality of second arc grooves which are arranged at intervals are arranged on one side of the push rod anti-shake piece facing the chassis, the plurality of second arc-shaped grooves are arranged corresponding to the second annular grooves, and balls are arranged between the second arc-shaped grooves and the second annular grooves;

the bearing fixing piece is provided with a communication groove along the axial direction of the push rod;

the driven gear is provided with a connecting part, the connecting part is positioned in the communication groove and fixedly connected with the first end of the push rod, and a first gap is reserved between the connecting part and the inner wall surface of the communication groove.

2. The fan chassis of claim 1, wherein the first gap is disposed in a range of 0.1mm to 0.5 mm.

3. The fan chassis of claim 1 or 2, wherein the second gap is provided in a range of 0.1mm to 0.5 mm.

4. A fan, comprising:

a fan blade assembly; and

a fan chassis according to any one of claims 1-3, the second end of the pushrod being connected to the fan blade assembly.