CN209761811U

CN209761811U - oscillating fan

Info

Publication number: CN209761811U
Application number: CN201920146695.2U
Authority: CN
Inventors: 陈丽芳
Original assignee: Shenzhen City Play Technology Co Ltd
Current assignee: Shenzhen City Play Technology Co Ltd
Priority date: 2019-01-27
Filing date: 2019-01-27
Publication date: 2019-12-10
Anticipated expiration: 2029-01-27

Abstract

The utility model discloses an oscillating fan, which comprises a base, a fan component, an oscillating component for driving the fan component to rotate relative to the base, and a circuit component connected with the oscillating component; the oscillating assembly comprises a driver arranged in the base and a transmission mechanism in transmission connection between the driver and the fan assembly; the transmission mechanism comprises a connecting piece and a transmission piece; the driver, the connecting piece, the transmission piece and the fan component are sequentially in transmission connection. Implement the utility model has the advantages that: the driver is arranged in the base, so that the gravity center of the oscillating fan is reduced, and the stability of the oscillating fan in use is improved; moreover, the driver drives the fan assembly to rotate relative to the base through the connecting piece and the transmission piece, and the transmission piece can also play a supporting role for the fan assembly, so that the fan assembly is simple in structure and convenient to use.

Description

Oscillating fan

Technical Field

The utility model relates to a fan field, more specifically say, relate to a fan of shaking head.

Background

The fan is a common electronic product, and when the weather is hot, people usually use the fan to blow air for cooling. In the use process, when people need to change the blowing direction of the fan, two structures for changing the blowing direction of the fan are generally available. The other is that a rotatable wind scooper is arranged at the position of the air outlet of the fan.

In the prior art, the oscillating fan comprises a base, a fan assembly and an oscillating assembly for driving the fan assembly to rotate relative to the base. The oscillating assembly is mostly provided with a motor at the connecting position with the fan assembly, and the motor rotates to drive the fan assembly to oscillate so as to realize the oscillating and reversing functions. However, the above-mentioned method of installing the motor in the fan assembly is only suitable for the fan with a large body size, and for the fan with a small body size, especially for the mini-type small fan placed on the table top, the gravity center of the fan is easy to be unstable, and the fan is easy to topple over during use, which causes a safety hazard.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, a place steady, the high fan of shaking the head of safety in utilization is provided.

The utility model provides a technical scheme that its technical problem adopted is: a head shaking fan is constructed, and comprises a base, a fan assembly, a head shaking assembly and a circuit assembly, wherein the head shaking assembly is used for driving the fan assembly to rotate relative to the base; the oscillating head assembly comprises a driver arranged in the base and a transmission mechanism in transmission connection between the driver and the fan assembly; the transmission mechanism comprises a connecting piece and a transmission piece; the driver, the connecting piece, the transmission piece and the fan assembly are sequentially in transmission connection.

In the oscillating fan of the present invention, the oscillating fan further comprises a reversing component for making the oscillating component rotate reciprocally within a predetermined angle range.

in the oscillating fan of the present invention, the reversing assembly includes a magnet mounted on the connecting member, and a hall switch connected to the circuit assembly; when the connecting piece drives the magnet to rotate, the Hall switch is located at the adjacent position of the rotating path of the magnet.

In the oscillating fan of the present invention, the connecting member includes a connecting body and a reversing arm protrudingly provided on the connecting body; the magnet is mounted on the reversing arm.

Oscillating fan in, the switching-over arm is including being circular-arc swing arm, and be used for connecting the swing arm with the linking arm of connecting the body.

In the oscillating fan of the present invention, the oscillating fan further includes a hollow support tube fixedly mounted on the base; the transmission piece comprises a transmission body and a butting part convexly arranged in the circumferential direction of the transmission body; the abutting part is in sliding abutting with the inner wall of the supporting tube.

In the oscillating fan of the utility model, one end of the supporting tube close to the fan component is provided with a limit notch; the transmission piece also comprises a limiting bulge convexly arranged at one end of the transmission body close to the fan component; the limiting protrusion is slidably mounted in the limiting notch.

In the oscillating fan of the utility model, the base is fixedly provided with a connecting column; the supporting tube is connected with the connecting column; the connecting column is provided with a sleeve joint hole in an axial penetrating manner; the transmission piece penetrates through the sleeving hole to be connected with the connecting piece.

In the oscillating fan of the present invention, the connecting member is provided with a sleeve portion and a first engaging portion provided at one end of the sleeve portion; the transmission part is arranged at one end of the transmission body and is mutually inserted into the second clamping part of the first clamping part.

In the oscillating fan of the present invention, the driver is a stepping motor; the motor shaft of step motor, the connecting piece with the driving medium upwards sets gradually, just step motor's motor shaft, the connecting piece with the driving medium coaxial setting.

Implement the utility model discloses a tilting head fan has following beneficial effect: the driver is arranged in the base, so that the gravity center of the oscillating fan is reduced, and the stability of the oscillating fan in use is improved; moreover, the driver drives the fan assembly to rotate relative to the base through the connecting piece and the transmission piece, and the transmission piece can also play a supporting role for the fan assembly, so that the fan assembly is simple in structure and convenient to use.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

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

Fig. 2 is an exploded view of the oscillating fan shown in fig. 1;

Fig. 3 is a view showing a structure of a connecting member, a driving member and a supporting pipe in the oscillating fan shown in fig. 1;

FIG. 4 is an exploded view of the linkage, transmission and support tube shown in FIG. 3;

fig. 5 is a block diagram of a link in the oscillating fan shown in fig. 1;

Fig. 6 is a structural view showing that a magnet in the oscillating fan shown in fig. 1 is installed in a connector;

fig. 7 is a schematic perspective view of an oscillating fan according to a second preferred embodiment of the present invention;

Fig. 8 is an exploded view of the oscillating fan shown in fig. 7;

Fig. 9 is an exploded view of the connecting member and the transmission member in the oscillating fan shown in fig. 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

the first embodiment is as follows:

As shown in fig. 1 to 6, a preferred embodiment of the present invention provides an oscillating fan, which includes a base 1, a fan assembly 2, an oscillating assembly 3, a circuit assembly 4, a reversing assembly 5, a supporting tube 6 and a connecting column 7. The moving head assembly 3 comprises a driver 31 mounted in the base 1 and a transmission mechanism 32 drivingly connected between the driver 31 and the fan assembly 2. The transmission mechanism 32 includes a connecting member 321 and a transmission member 322, and the driver 31, the connecting member 321, the transmission member 322 and the fan assembly 2 are sequentially connected in a transmission manner. The supporting tube 6 is sleeved outside the transmission member 322 and slidably abuts against the transmission member 322. The reversing assembly 5 is mounted in the base 1 and cooperates with the driver 31 to adjust the direction of rotation of the fan assembly 2. In this embodiment, the driver 31 is a stepping motor, a motor shaft of the stepping motor, the connecting member 321, and the transmission member 322 are sequentially disposed upward, and the motor shaft of the stepping motor, the connecting member 321, and the transmission member 322 are coaxially disposed. The oscillating assembly 3 adopts the structure, has simple structure, can make the oscillating fan has small size and is simple and convenient to assemble.

Further, the reversing assembly 5 is used for reciprocating the moving head assembly 3 within a set angle range, and comprises a magnet 51 mounted on a connecting member 321, and a hall switch 52 connected with the circuit assembly 4. A controller (not shown) is provided on the circuit assembly 4, the hall switch 52 is integrated on the circuit assembly 4 and electrically connected to the controller, and the driver 31 is also electrically connected to the controller. Optionally, the controller is a single chip microcomputer. The hall switch 52 is located at the adjacent position of the rotation path of the magnet 51, and when the connecting piece 321 drives the magnet 51 to rotate, the magnet 51 can trigger the hall switch 52 to work.

When the driver 31 works, the driver 31 drives the connecting member 321, the transmission member 322 and the fan assembly 2 to rotate relative to the base 1. The magnet 51 moves along with the rotation of the connecting member 321, when the magnet 51 rotates to a position opposite to the hall switch 52, the magnet 51 triggers the hall switch 52, the hall switch 52 is turned on and sends a signal to a controller on the circuit assembly 4, so that the circuit assembly 4 changes the rotation direction of the driver 31, and the purpose of automatically adjusting the rotation direction of the fan assembly 2 is achieved.

Specifically, as shown in fig. 2 and fig. 1, the base 1 includes an upper shell 11 and a bottom shell 12, the upper shell 11 and the bottom shell 12 are fastened to each other by screws, and both form a receiving space for mounting the driver 31. The upper surface of the upper shell 11 is fixedly provided with a cylindrical connecting column 7, and the upper surface and the cylindrical connecting column realize a relatively fixed state. The supporting tube 6 is connected with the connecting column 7, the connecting column 7 is provided with a sleeving hole 71 in an axial penetrating manner, and the transmission piece 322 penetrates through the sleeving hole 71 to be connected with the connecting piece 321.

As shown in fig. 2 and fig. 1, the fan assembly 2 includes a fan base (not numbered), a driving motor (not shown) installed in the fan base, and a fan head (not numbered), the fan head includes fan blades (not numbered) and a protective frame (not numbered) surrounding the fan blades, the protective frame is fixedly connected with the fan base, the fan blades are in transmission connection with the driving motor, and the driving motor is electrically connected with the circuit assembly 4.

As shown in fig. 2 and referring to fig. 3, fig. 4, fig. 5 and fig. 6, the oscillating head assembly 3 is used for driving the fan assembly 2 to rotate around the supporting tube 6, and includes a driver 31 installed in the base 1 and a transmission mechanism 32 drivingly connected between the driver 31 and the fan assembly 2. The transmission mechanism 32 includes a connecting member 321 and a transmission member 322, and specifically, the connecting member 321 includes a connecting body 3211, a reversing arm 3212, and a socket 3213. The switching-over arm 3212 is protruding to stretch out from the side of connecting body 3211, and the one end of connecting body 3211 is located to the portion of cup jointing 3213, and connecting body 3211 and the portion of cup jointing 3213 all are roughly the cylinder form, and connecting body 3211 and the portion of cup jointing 3213 set up in the ladder structure form, and the external diameter of the portion of cup jointing 3213 is greater than the external diameter of connecting body 3211. One end of the connecting body 3211, which is far away from the sleeve portion 3213, is provided with a shaft hole 3214, and the sleeve portion 3213 is provided with a first clamping portion 32131. The reversing arm 3212 includes a swing arm 32121 and a connecting arm 32122, and the swing arm 32121 is connected to the connecting body 3211 through the connecting arm 32122. The swing arm 32121 is arc-shaped and has a thin plate structure. The connecting body 3211 is matched with the rotating shaft of the driver 31 through the shaft hole 3214, and is rotatably installed in the base 1 through the matching of the socket joint portion 3213 and the socket joint hole 71.

In this embodiment, preferably, the first engaging portions 32131 are circular recesses, two first engaging portions 32131 are provided, and the two first engaging portions 32131 are disposed at an end surface of the engaging portion 3213 at an interval. In other embodiments, the number of the first clip portions 32131 may be two or more; alternatively, the first clip portions 32131 may be provided in a polygonal shape, such as a triangle, a quadrangle, a pentagon, etc., and the number of the first clip portions 32131 provided is one or more.

In this embodiment, two mounting grooves (not numbered) are provided on the swing arm 32121 of the reversing arm 3212 at intervals, and preferably, the two mounting grooves are respectively provided at two ends of the swing arm 32121. The two mounting grooves are equidistant from the connecting body 3211, and the magnets 51 of the reversing assembly 5 are mounted in the mounting grooves, i.e., the two magnets 51 are equidistant from the connecting body 3211. When the connecting member 321 rotates clockwise or counterclockwise along with the driver 31, the magnets 51 provided in the two mounting grooves rotate clockwise or counterclockwise along the same path. The circuit assembly 4 is mounted within the base 1 below the commutation arm 3212 and the hall switch 52 is located directly below the path of rotation of the magnet 51 and sufficiently close that the magnet 51 can trigger the hall switch 52. When the two magnets 51 sequentially move to above the hall switch 52, the two magnets 51 sequentially trigger the hall switch 52, and the hall switch 52 sends a signal to the controller, so that the controller changes the rotation direction of the driver 31, thereby adjusting the swing direction of the fan assembly 2.

In other embodiments, the number of the magnets 51 on the commutating arm 3212 may be one or more than two. For example, the reversing arm 3212 has a magnet 51, and when the driver 31 rotates for one turn, the magnet 51 triggers the hall switch 52, so that the circuit assembly 4 adjusts the steering direction of the driver 31; or, a plurality of magnets 51 are arranged on the swing arm 32121 of the reversing arm 3212 at equal intervals, when the reversing arm 3212 rotates clockwise, each time the magnet 51 triggers the hall switch 52, the circuit assembly 4 reduces the rotation speed of the driver 31, and so on until the magnet 51 at the end of the swing arm 32121 triggers the hall switch 52, and the circuit assembly 4 controls the rotation speed of the driver 31 to be reduced to zero and rotate in the opposite direction, so that the fan assembly 2 rotates in the opposite direction.

the transmission member 322 includes a transmission body 3221, a supporting portion 3222, a limiting protrusion 3223, a second clamping portion 3224, and a support 3225. The second clamping portion 3224 and the supporting seat 3225 are respectively disposed at two ends of the transmission body 3221. The supporting portion 3222 is protruded in the circumferential direction of the driving body 3221, and is of a disc-shaped structure, and the supporting portion 3222 is slidably supported against the inner wall of the supporting tube 6, that is, when the driving member 322 rotates, the supporting portion 3222 is in sliding contact with the inner wall of the supporting tube 6, so that the driving member 322 is more stable during driving, and shaking generated in the working process of the head shaking assembly 3 is effectively avoided. In this embodiment, three supporting portions 3222 are provided, and the three supporting portions 3222 are uniformly distributed on the transmission body 3221. The second clip portion 3224 is matched with the first clip portion 32131, and the transmission member 322 is clipped to the connecting member 321 through the matching of the second clip portion 3224 and the first clip portion 32131. In this embodiment, the second engaging portion 3224 is a cylindrical protrusion, and the two second engaging portions 3224 are disposed corresponding to the two first engaging portions 32131 of the connecting element 321. The shape, the setting number and the setting position of the second clip portion 3224 are matched with those of the first clip portion 32131, so that the second clip portion 3224 can be clipped to the first clip portion 32131. In order to make the connection between the connecting member 321 and the transmission member 322 more stable, the connecting member 321 and the transmission member 322 are connected by screws, except for the mutual engagement between the second engaging portion 3224 and the first engaging portion 32131. The fan seat of the fan assembly 2 is rotatably mounted on the support 3225 through a rotating shaft, and the end surface of the connecting column 7 abuts against the abutting portion 3222 at the bottom end to support the driving member 322 and the fan assembly 2.

in this embodiment, in order to limit the rotation angle of the fan assembly 2, a limiting notch 61 is formed at one end of the supporting tube 6 close to the fan assembly 2, a limiting protrusion 3223 is convexly disposed at one end of the transmission body 3221 close to the fan assembly 2, and the limiting protrusion 3223 is slidably mounted in the limiting notch 61. The structure of the limiting protrusion 3223 and the limiting notch 61 is adopted, so that the rotation angle of the fan assembly 2 can be limited, and the phenomenon that the oscillating fan is damaged due to the fact that the fan assembly 2 is manually rotated by 360 degrees is avoided.

As shown in fig. 1 to 4, when the oscillating fan works, the driver 31 drives the fan assembly 2 to rotate through the connecting member 321 and the transmission member 322, and when the driver 31 rotates to two swing limit positions of the fan assembly 2, the magnet 51 disposed on the reversing arm 3212 triggers the hall switch 52 disposed on the circuit assembly 4, so that the circuit assembly 4 on the circuit assembly 4 controls the driver 31 to rotate in the opposite direction, and the fan assembly 2 swings in the opposite direction. In the utility model discloses a in other embodiments, the structure of switching-over subassembly 5 can be omitted to the oscillating fan, when driving medium 322 rotates to extreme position and keeps the certain time, also the edge of spacing arch 3223 and spacing breach 61 supports each other and keeps the certain time, can trigger controller control driver 31 among the circuit subassembly 4 this moment and change the rotation direction, and then reach the purpose of controlling fan subassembly 2 and shake the head.

with the oscillating fan according to the above embodiment, the driver 31 of the oscillating fan is arranged in the base 1, so that the gravity center of the oscillating fan is lowered, and the stability of the oscillating fan during use is improved; moreover, the driver 31 drives the fan assembly 2 to rotate relative to the base 1 through the connecting member 321 and the transmission member 322, and the transmission member 322 can also support the fan assembly 2, so that the structure is simple and the use is convenient.

Example two:

As shown in fig. 7, 8 and 9, a second preferred embodiment of the present invention provides an oscillating fan, which includes a base 1, a fan assembly 2, an oscillating assembly 3, a circuit assembly 4, a reversing assembly 5, a supporting tube 6 and a connecting column 7. It differs from the first embodiment in the structure of the head shaking assembly 3, the support tube 6 and the connecting column 7. In this embodiment, the connecting member 321 of the moving head assembly 3 includes a connecting body 3211, a reversing arm 3212 protruding from a side surface of the connecting body 3211, and a first engaging portion 3213 disposed at an end of the connecting body 2412, where the first engaging portion 3213 is a buckle disposed on the annular wall. The buckle is matched with a through hole (not numbered) arranged on the first clamping portion 32131 in the connecting body 3211, and the buckle and the through hole are inserted into each other to realize the connection between the connecting piece 321 and the transmission piece 322. The support tube 6 comprises an inner support tube 61 and an outer support tube 62, which are nested with each other, and the supporting portion 3222 slidably supports against the inner wall of the inner support tube 61.

While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A head shaking fan comprises a base (1), a fan component (2), a head shaking component (3) for driving the fan component (2) to rotate relative to the base (1), and a circuit component (4) connected with the head shaking component (3); the method is characterized in that: the oscillating head assembly (3) comprises a driver (31) arranged in the base (1) and a transmission mechanism (32) in transmission connection between the driver (31) and the fan assembly (2); the transmission mechanism (32) comprises a connecting piece (321) and a transmission piece (322); the driver (31), the connecting piece (321), the transmission piece (322) and the fan component (2) are sequentially in transmission connection.

2. An oscillating fan according to claim 1, characterized in that: the oscillating fan further comprises a reversing assembly (5) used for enabling the oscillating assembly (3) to rotate in a reciprocating mode within a set angle range.

3. an oscillating fan according to claim 2, characterized in that: the reversing component (5) comprises a magnet (51) arranged on the connecting piece (321) and a Hall switch (52) connected with the circuit component (4); when the connecting piece (321) drives the magnet (51) to rotate, the Hall switch (52) is located at the adjacent position of the rotating path of the magnet (51).

4. An oscillating fan according to claim 3, characterized in that: the connecting piece (321) comprises a connecting body (3211) and a reversing arm (3212) convexly arranged on the connecting body (3211); the magnet (51) is mounted on the reversing arm (3212).

5. An oscillating fan according to claim 4, characterized in that: the reversing arm (3212) comprises an arc-shaped swing arm (32121) and a connecting arm (32122) for connecting the swing arm (32121) with the connecting body (3211).

6. An oscillating fan according to any one of claims 1-3, characterized in that: the oscillating fan also comprises a hollow supporting tube (6) fixedly arranged on the base (1); the transmission piece (322) comprises a transmission body (3221) and a butting part (3222) convexly arranged in the circumferential direction of the transmission body (3221); the abutting part (3222) is in sliding abutting with the inner wall of the supporting tube (6).

7. An oscillating fan according to claim 6, characterized in that: one end of the supporting tube (6) close to the fan component (2) is provided with a limiting notch (61); the transmission piece (322) further comprises a limiting protrusion (3223) which is convexly arranged at one end of the transmission body (3221) close to the fan component (2); the limiting protrusion (3223) is slidably mounted in the limiting notch (61).

8. An oscillating fan according to claim 7, characterized in that: a connecting column (7) is fixedly arranged on the base (1); the supporting tube (6) is connected with the connecting column (7); the connecting column (7) is provided with a sleeve joint hole (71) in an axial penetrating manner; the transmission piece (322) penetrates through the sleeving hole (71) to be connected with the connecting piece (321).

9. An oscillating fan according to claim 8, characterized in that: the connecting piece (321) is provided with a sleeving part (3213) and a first clamping part (32131) arranged at one end of the sleeving part (3213); the transmission piece (322) further comprises a second clamping portion (3224) which is arranged at one end of the transmission body (3221) and is mutually inserted into the first clamping portion (32131).

10. An oscillating fan according to any one of claims 1-3, characterized in that: the driver (31) is a stepping motor; the motor shaft of step motor, connecting piece (321) with driving medium (322) upwards set gradually, just step motor's motor shaft connecting piece (321) with driving medium (322) coaxial setting.