CN111022360A

CN111022360A - Fan head-shaking mechanism and fan with same

Info

Publication number: CN111022360A
Application number: CN201911246642.9A
Authority: CN
Inventors: 莫贤乐; 柳智; 罗龙翊; 侯剑飞; 孙土春; 梁刚; 梁解; 郭雨鑫
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-04-17
Also published as: WO2021109629A1

Abstract

The invention provides a fan head shaking mechanism and a fan with the same, wherein the fan head shaking mechanism comprises: a base; a rotating assembly rotatably disposed on the base, the rotating assembly comprising: the connecting piece is arranged on the fan body; the rolling component is arranged on the connecting piece, and the rolling end of the rolling component is embedded on the base; and the driving assembly is arranged on the base and/or the rotating assembly so as to drive the rotating assembly to rotate. In the invention, the rolling component is adopted to realize the movable connection between the fan body and the base, the rolling component realizes the supporting effect on the fan body in the height direction of the fan body, the supporting points of the rolling support are generally arranged in a plurality, the supporting stability is good, and in addition, the rolling component is arranged on the base in an embedding mode in the radial direction of the fan body, the radial constraint of the rolling component is realized, and the stability in the rotating process is further ensured.

Description

Fan head-shaking mechanism and fan with same

Technical Field

The invention relates to the technical field of household appliances, in particular to a fan oscillating mechanism and a fan with the same.

Background

The existing fan oscillating mechanism is mainly characterized in that the existing fan oscillating mechanism pushes a machine body to move through a plane four-connecting rod by depending on a one-way synchronous motor at the bottom, and the structural components of the existing fan oscillating mechanism generally comprise a synchronous motor, a crank, a connecting rod, a rocker, a supporting plate, a pressing plate, a fixing plate, a shaft sleeve, a clamp spring and the like.

However, the oscillating mechanism has many kinds of parts, a complex structure and low assembly efficiency, and when the crank connecting rod structure is used as a driving structure, the acting point is single, so that stress is concentrated on a certain part of the fan, and the stress concentration position is located at an eccentric position, so that the stability of the machine body is poor.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects that the fan oscillating mechanism is complex and poor fan stability is easily caused in the prior art, so that the fan oscillating mechanism and the fan are provided.

In order to solve the above problems, the present invention provides a head-shaking mechanism of a fan comprising: a base; a rotating assembly rotatably disposed on the base, the rotating assembly comprising: the connecting piece is arranged on the fan body; the rolling component is arranged on the connecting piece, and the rolling end of the rolling component is embedded on the base; and the driving assembly is arranged on the base and/or the rotating assembly so as to drive the rotating assembly to rotate.

Furthermore, the rotating assembly further comprises a limiting ring surrounding the base, one end of the limiting ring is arranged on the connecting piece, and the other end of the limiting ring is movably clamped on the base.

Further, the lower terminal surface border of spacing collar has the orientation the flange that the spacing collar center set up is followed the circumference of base is outwards provided with the chimb, the flange joint is in the chimb below.

Furthermore, a plurality of hooks and/or hook grooves are arranged on the upper end face of the limiting ring, and the hook grooves and/or the hooks are correspondingly arranged on the connecting piece.

Further, the rolling assembly includes: the holder is provided with a plurality of clamping grooves; the ball, some activity of ball sets up in the draw-in groove.

Furthermore, the clamping groove is provided with a circular groove hole and at least one pair of elastic limiting pieces which are oppositely arranged on the inner wall of the groove hole.

Furthermore, the retainer is annular, and a plurality of the clamping grooves are distributed at equal intervals along the circumferential direction of the retainer.

Further, the rolling assembly includes a collar, and the cage is disposed at a lower end face of the collar.

Further, the gasket is provided with an enclosure towards the center of the gasket, and the retainer is embedded in the enclosure.

Further, a stop structure is arranged on the outer peripheral surface of the enclosure.

Furthermore, annular grooves matched with the lining rings are formed in the lower end face of the connecting piece and the upper end face of the base, and the lining rings are clamped in the annular grooves of the connecting piece.

Further, the part of the ball protruding out of the retainer abuts against the groove bottom of the annular groove of the base.

Further, the drive assembly includes: the motor is arranged on the lower end face of the connecting piece; the driving gear is arranged on a motor shaft of the motor; and the driven gear is arranged on the base and is meshed with the driving gear.

Further, the driven tooth is a gear ring formed on the inner side wall of the base.

The invention also provides a fan which comprises any one of the fan oscillating mechanisms; the machine body is arranged on the connecting piece; and the base is arranged on the lower end face of the base.

The technical scheme of the invention has the following advantages:

1. the oscillating mechanism of the fan comprises: a base; a rotating assembly rotatably disposed on the base, the rotating assembly comprising: the connecting piece is arranged on the fan body; the rolling component is arranged on the connecting piece, and the rolling end of the rolling component is embedded on the base; and the driving assembly is arranged on the base and/or the rotating assembly so as to drive the rotating assembly to rotate.

It should be explained that, the base is generally fixedly connected with the chassis of the fan, the rotating assembly is fixed on the fan body through the connecting piece, the rolling end of the rolling assembly is embedded on the base and rolls on the base, and when the driving assembly drives the rotating assembly, the fan body can rotate on the base under the action of the rolling assembly. The rotating assembly in the invention adopts the rolling assembly to realize the movable connection between the fan body and the base, the rolling assembly realizes the supporting effect on the fan body in the height direction of the fan body, the supporting points of the rolling support are generally arranged in a plurality, the supporting stability is good, in addition, in the radial direction of the fan body, the rolling assembly is arranged on the base in an embedding mode, the radial constraint of the rolling assembly is realized, and the stability in the rotating process is further ensured.

Further elaboration of structural complexity is: in the background technology, the components of the existing plane four-bar mechanism are simply listed, and the components comprise more than 13 parts such as a synchronous motor, a crank, a connecting rod, a rocker, a supporting plate, a pressing plate, a fixing plate, a shaft sleeve, a snap spring and the like, more importantly, the snap spring, an anti-falling ring and the shaft sleeve are required to be used at the joint of each movable connecting rod, the snap spring and the anti-falling ring are small in size, are clamped and are time-consuming and labor-consuming in assembly and disassembly, the structure of the invention mainly comprises a base, a connecting piece, a rolling assembly and a driving assembly, the number of parts is small, the hard-to-disassemble parts such as the snap spring and the anti-.

2. The rotating assembly in the fan oscillating mechanism further comprises a limiting ring arranged around the base, one end of the limiting ring is arranged on the connecting piece, and the other end of the limiting ring is movably clamped on the base. Because the fan body has a considerable height, in order to reduce the radial stress at the clamping position of the rolling component and the base and ensure the service life of the rolling component, the invention is provided with the limiting ring which indirectly protects the rolling component in the circumferential direction, and part of the limiting ring is movably clamped and covered on the base so as to reduce the shaking of the fan body relative to the periphery of the base in the rotating process.

3. According to the fan oscillating mechanism, the lower end face edge of the limiting ring is provided with the flange arranged towards the center of the limiting ring, the flange is arranged outwards along the circumferential direction of the base, and the flange is clamped below the flange.

4. According to the fan oscillating mechanism, the plurality of clamping hooks are arranged on the upper end face of the limiting ring, the hook grooves are formed in the connecting piece corresponding to the clamping hooks, and the clamping hooks and the hook grooves are arranged in a clamping mode.

5. The rolling component in the fan oscillating mechanism comprises: the holder is provided with a plurality of clamping grooves; the ball bearing, some activity of the said ball bearing is set up in the said neck, will realize the rolling structure is set up as the ball bearing in the invention, on one hand the support quantity of the ball bearing is large, it is effectual to support, on the other hand, the ball bearing is when rolling, the frictional resistance is small, reducible rotational noise and load to the drive assembly.

6. The clamping groove in the fan oscillating mechanism is provided with a circular groove hole and at least one pair of elastic limiting parts which are oppositely arranged on the inner wall of the groove hole, the clamping of the ball is realized by the elastic limiting parts, the rotation of the ball in the groove hole is not influenced, the problem that the ball is easy to fall off and lose from the groove hole in the installation process is effectively solved, and the assembly difficulty of the rolling assembly is reduced.

7. The fan oscillating mechanism is characterized in that the holder is in a circular ring shape, the clamping grooves are distributed at equal intervals along the circumferential direction of the holder, the clamping grooves are distributed at equal intervals, and the balls arranged on the clamping grooves are necessarily distributed at equal intervals.

8. The rolling assembly in the fan oscillating mechanism comprises the lining ring, the retainer is arranged on the lower end face of the lining ring, the connecting piece is mostly an injection molding piece due to the fact that the balls are directly abutted to the connecting piece, the strength is low, time is long, the balls are prone to rolling unsmoothly and generating noise due to deformation of the abutting position of the connecting piece, and the balls are abutted to the lining ring due to the arrangement of the lining ring, so that the problems can be effectively solved.

9. The stopping structure is arranged on the outer peripheral surface of the enclosure in the fan oscillating mechanism, the whole rotating assembly is fixed on the connecting piece through the stopping structure, and the fan oscillating mechanism is simple in structure and convenient to install.

10. In the oscillating mechanism of the fan, the lower end surface of the connecting piece and the upper end surface of the base are both provided with annular grooves matched with the lining rings, the lining rings are clamped in the annular grooves of the connecting piece, the arrangement of the annular grooves can restrict the movement of the lining rings and the rotating assembly in the radial direction, the shaking of the machine body during rotation is further reduced, and the stability is improved.

Drawings

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

Fig. 1 is an exploded view of a fan oscillating mechanism according to embodiment 1 of the present invention;

fig. 2 is a sectional view of a fan oscillating mechanism in embodiment 1 provided by the present invention;

FIG. 3 is a schematic structural view of a base according to embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of a connector in example 1 of the present invention;

FIG. 5 is a schematic structural view of a cage in embodiment 1 of the present invention;

FIG. 6 is a schematic structural view of another embodiment of a connector according to example 1 of the present invention;

fig. 7 is a schematic structural view of a spacing collar in embodiment 1 provided by the invention;

fig. 8 is a schematic structural diagram of a fan in embodiment 2 of the present invention.

Description of reference numerals:

1-a base; 11-a flange;

2-a rotating assembly; 21-a connector; 22-a rolling assembly; 221-a cage; 222-a ball bearing; 223-a collar; 2211(12) -card slot; 2212-elastic limit piece; 23-a spacing ring; 231-a flange; 232-hook;

3-a drive assembly; 31-a motor; 32-a drive gear; 33-a driven gear;

4-a fuselage;

5-base.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

Fig. 1 to 7 show a moving head mechanism of a fan provided for this embodiment, including: a base 1; the rotating assembly 2 is rotatably arranged on the base 1, and the rotating assembly 2 comprises a connecting piece 21 arranged on the fan body; the rolling component 22 is arranged on the connecting piece 21, and the rolling end of the rolling component is embedded on the base 1; and the driving assembly 3 is arranged on the base 1 and/or the rotating assembly 2 to drive the rotating assembly 2 to rotate.

The oscillating structure of the fan in this embodiment is installed between the body of the fan and the chassis, so that the body of the fan can rotate on the chassis.

It should be noted that the base 1 is generally fixedly connected with a chassis of the fan, the rotating assembly 2 is fixed on the fan body through a connecting member 21, a rolling end of the rolling assembly 22 is embedded on the base 1 to roll on the base 1, and when the driving assembly 3 drives the rotating assembly 2, the fan body can rotate on the base 1 under the action of the rolling assembly 22. In the rotating assembly 2 adopted in this embodiment, the rolling assembly 22 is adopted to realize the movable connection between the fan body and the base 1, the rolling assembly 22 realizes the supporting effect on the fan body in the height direction of the fan body, the supporting points of general rolling supports are all set to be multiple, the supporting stability is good, in addition, in the radial direction of the fan body, the rolling assembly 22 is arranged on the base 1 in an embedded mode, the radial constraint on the rolling assembly 22 is realized, and the stability in the rotating process is further ensured.

Furthermore, the implementation objects of the fan oscillating structure in this embodiment are mostly tower fans or bladeless fans, and the main body thereof is mostly cylindrical, so the overall shape of the fan oscillating structure in this embodiment is disc-shaped and is matched with the main body, so as to ensure the aesthetic property of the overall structure of the fan.

In this embodiment, before the integral assembly, the rotating assembly 2 needs to be preassembled, and the rotating assembly 2 is explained as follows:

as described above, the rotating assembly 2 includes the rolling assembly 22 therein, and when the rotating assembly 2 is assembled, the rolling assembly 22 is assembled, wherein the rolling assembly 22 includes: the holder 221 is formed with a plurality of card slots 2211, ten in the present embodiment, and as shown in fig. 5 and 6, the card slots 2211 are through slots. In other embodiments, the number of the support members may be other, and the larger the number is, the better the support effect is. The balls 222, and a part of the balls 222 are movably installed in the slot 2211, and the use of the balls 222 can reduce the friction resistance and noise when the fan body rotates.

In other embodiments, the balls 222 in the rolling assembly 22 may be replaced by a roller structure, and the shaft ends of the roller are mounted on the holder 221 in a manner similar to the conventional roller mounting manner, which is not described herein again.

Further, the aforementioned card slot 2211 has a circular slot and at least one pair of elastic limiting pieces oppositely disposed on the inner wall of the slot, in this embodiment, as shown in fig. 5 and fig. 6, on the inner wall of the card slot 2211, two elastic limiting pieces 2212 are mounted on one surface along the circumferential direction of the entire holder 221, and two elastic limiting pieces 2212 are also mounted on the other surface along the radial direction of the holder 221, the four elastic limiting pieces 2212 form a ball 222 clamping space arranged in a cross shape, the ball 222 is rotatably clamped between the four elastic limiting pieces, when the ball 222 is actually mounted, it is very easy to fall off from the card slot 2211, and the movement and the combined mounting with other components are laborious, so that a corresponding mounting jig needs to be designed, which is time and labor consuming, and the design of the elastic limiting pieces effectively simplifies the mounting of the ball 222.

In other embodiments, the number of the elastic stoppers 2212 may be six, eight, etc., which is more effective for clamping the balls 222.

In other embodiments, the number of the elastic stoppers may be an odd number, such as three, and the ball 222 may be clamped.

In other embodiments, the elastic stoppers 2212 may be disposed on only one side of the holder 221, and the number of the stoppers is similar to that of the stoppers disposed on both sides.

The retainer 221 in this embodiment is annular, and the above-mentioned slots 2211 are distributed at equal intervals along the circumferential direction, so that the bearing force of each ball 222 arranged thereon is basically the same, and the situation that a part of the balls 222 is stressed too much due to uneven component force and is damaged in advance does not occur, thereby further ensuring the stability of the support.

In the present embodiment, the connecting member 21 is mostly an injection molded part, and the strength is low, and if the ball 222 directly abuts on the connecting member 21, the abutting position of the connecting member 21 is deformed over time, which easily causes the ball 222 to roll unsmoothly, and generate noise, and so on, and therefore the rolling assembly 22 in the present embodiment includes the collar 223, and the retainer 221 is mounted on the lower end surface of the collar 223.

Further, the gasket 223 is formed with a surrounding ring toward the center of the gasket 223, and the holder 221 is fitted in the surrounding ring with a clearance fit. In the actual rotating process, the balls 222 may be intermittently jammed in an abnormal state in the using process, and the retainer 221 which is installed in the enclosure in a clearance fit manner can automatically slide in the enclosure when the balls 222 are jammed, so that the work of the fan oscillating mechanism is not influenced.

Of course, while ensuring that the balls 222 rotate well in the slots 2211, in some other embodiments, the cage 221 may also be inserted into the enclosure in an interference fit.

Since the ring 223 does not need to rotate in the actual rotation process, a stop structure is formed on the outer circumferential surface of the surrounding ring, the stop structure is a small convex edge protruding out of the outer circumferential surface, and when the ring is installed, the convex edge structure is embedded into the installation groove on the connecting piece 21 to prevent the ring from rotating.

As shown in fig. 7, since the fan body has a considerable height, in order to reduce the radial stress at the clamping position of the rolling assembly 22 and the base 1 and ensure the service life of the rolling assembly 22, in this embodiment, a limiting ring 23 is further designed to be installed around the base 1, one end of the limiting ring 23 is installed on the connecting piece 21, the other end is movably clamped on the base 1, the limiting ring 23 is protected in the circumferential direction of the rolling assembly 22, and part of the limiting ring is movably clamped and covered on the base 1 to reduce the shaking of the fan body relative to the outer periphery of the base during the rotation process.

The clamping mode is as follows, the lower end face edge of the limiting ring 23 is provided with a flange 231 formed towards the center of the limiting ring 23, a convex edge 11 is formed outwards along the circumferential direction of the base 1, and the flange 231 is clamped below the convex edge 11. The up-and-down arrangement of the flanges 231 and the flanges 11 realizes the restraint on the height direction of the machine body, and in the circumferential direction, the whole flange 231 structure realizes the partial coating of the flanges 11 and restrains the radial movement of the flanges.

In order to fix the limiting ring 23, three hooks 232 are formed at the upper end face of the limiting ring 23, hook grooves are formed in the connecting piece 21 corresponding to the hooks 232, when the limiting ring is installed, the hooks 232 can be clamped in the hook grooves by rotating the limiting ring, and the installation is simple and rapid.

Of course, in other embodiments, the hook 232 may also be formed on the connecting member 21, and the slot may be formed on the stop collar 23.

In order to further restrain the radial vibration, annular grooves matched with the lining rings 223 are formed at the lower end face of the connecting piece 21 and the upper end face of the base 1, and the lining rings 223 are clamped in the annular grooves of the connecting piece 21.

Of course, in order to ensure smooth rotation of the rotating assembly 2, the portion of the balls 222 protruding out of the cage 221 abuts on the groove bottom of the annular groove of the base 1.

Briefly described below with respect to the drive assembly 3, as shown in fig. 1, the drive assembly 3 comprises: a motor 31 installed on a lower end surface of the connection member 21; a driving gear 32 installed on a motor shaft of the motor 31 in a flat key manner; and a driven gear 33 provided on the base 1 to be engaged with the driving gear 32, as shown in fig. 3, wherein the driven gear 33 is a ring gear formed on an inner side wall of the base 1.

In other embodiments, the above-mentioned gear ring may also be an external gear ring, and it is sufficient that the basic transmission of the gear is realized.

Example 2

As shown in fig. 8, the fan provided in this embodiment includes: any one of the fan oscillating mechanisms; a body 4 locked to the connecting member 21 by a screw; and the base 5 is locked and/or rotationally clamped on the lower end surface of the base 1 by screws, and the problem of stability of the fan body 4 in the rotating process can be effectively solved due to the use of the oscillating structure.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A fan oscillating mechanism is characterized by comprising:

a base (1);

a rotating assembly (2) rotatably disposed on the base (1), the rotating assembly (2) comprising:

a connector (21) arranged on the fan body;

the rolling component (22) is arranged on the connecting piece (21), and the rolling end of the rolling component is embedded on the base (1);

and the driving assembly (3) is arranged on the base (1) and/or the rotating assembly (2) to drive the rotating assembly (2) to rotate.

2. A moving head mechanism according to claim 1, characterized in that said rotating assembly (2) further comprises a spacing collar (23) surrounding said base (1), one end of said spacing collar (23) is arranged on said connecting member (21), and another end is movably clamped on said base (1).

3. The oscillating mechanism for a fan according to claim 2, wherein the lower end face edge of the spacing collar (23) is provided with a flange (231) arranged towards the center of the spacing collar (23), a flange (11) is arranged outwards along the circumference of the base (1), and the flange (231) is clamped below the flange (11).

4. The oscillating mechanism for a fan according to any one of claims 2 or 3, wherein a plurality of hooks (232) and/or hook grooves are provided at the upper end surface of the limiting ring (23), and the hook grooves and/or the hooks (232) are correspondingly provided on the connecting member (21).

5. A fan oscillating mechanism according to claim 1, characterized in that said rolling assembly (22) comprises:

the holder (221) is provided with a plurality of clamping grooves (2211);

the ball (222), some activity of ball (222) is set up in the draw-in groove (2211).

6. The oscillating mechanism for fan according to claim 5, wherein said slot (2211) has a circular slot and at least one pair of elastic stoppers (2212) oppositely disposed on the inner wall of said slot.

7. The oscillating mechanism of the fan according to claim 5, wherein the holder (221) is ring-shaped, and a plurality of the slots (2211) are equally spaced along the circumference.

8. A moving head mechanism according to any of the claims 5-7, characterized in that said rolling assembly (22) comprises a collar (223), said holder (221) being arranged at a lower end face of said collar (223).

9. The oscillating fan mechanism according to claim 8, wherein said collar (223) is formed with an enclosure toward the center of said collar (223), and said holder (221) is embedded in said enclosure.

10. A moving head mechanism according to claim 9, wherein said enclosure is provided with stop means on its outer circumference.

11. The oscillating fan mechanism according to claim 10, wherein the lower end face of the connecting member (21) and the upper end face of the base (1) are formed with annular grooves adapted to the collar (223), and the collar (223) is fitted in the annular grooves of the connecting member (21).

12. A moving head mechanism according to claim 8, characterized in that the part of said balls (222) protruding out of said holder (221) abuts against the bottom of the annular groove of said base (1).

13. A moving head mechanism according to any of the claims 1-12, characterized in that said driving assembly (3) comprises:

a motor (31) provided on a lower end surface of the connector (21);

a drive gear (32) provided on a motor shaft of the motor (31);

and the driven gear (33) is arranged on the base (1) and is meshed with the driving gear (32).

14. A fan oscillating mechanism according to claim 13, characterized in that said driven tooth (33) is a toothed ring formed on the inner side wall of said base (1).

15. A fan, comprising:

a fan oscillating mechanism according to any one of claims 1-14;

a body (4) arranged on the connecting piece (21);

and a base (5) arranged on the lower end face of the base (1).