CN107339244B - Blade-rotating fan and control method thereof - Google Patents

Abstract

The application provides a box fan and a control method thereof. The box fan comprises a shell, a rear cover arranged at the rear part of the shell and a box body rotatably arranged at the front part of the shell, wherein a plurality of air deflectors are arranged on the rear cover and/or the box body, two ends of each air deflector are provided with rotating shafts, and the air deflectors can rotate around the rotating shafts. According to the box fan provided by the application, the air deflector is arranged on the rear cover and/or the box body and can rotate around the rotating shaft of the box fan, the air outlet direction of the box fan can be changed by changing the rotating angle of the air deflector, so that different requirements of users are met, and when the box fan is not used, the air deflector can be mutually closed, so that the effect of dust prevention is achieved, and the air deflector is convenient to clean.

Description

Blade-rotating fan and control method thereof

Technical Field

The application relates to the field of fans, in particular to a box fan and a control method thereof.

Background

The leaf-turning body and the back cover of the existing leaf-turning fan are usually arranged to be of an open grid structure, the leaf-turning fan in the structural form is easy to accumulate dust on the leaf-turning body, the back cover and the inner fan blades, and the accumulated dust attached to the inner side of the grid structure is difficult to clean because of the fixed position of the grid structure, so that the leaf-turning fan is inconvenient to detach and clean frequently in the case of more dust or greasy dirt. In addition, dust falls on the fan blade base and easily rusts a bearing of the driving motor, so that the motor cannot turn, the service life of the fan is greatly shortened, and the use comfort of the fan is affected.

Disclosure of Invention

Therefore, an object of the present application is to provide a box fan and a control method thereof that can improve comfort and facilitate cleaning.

In order to achieve the above purpose, on one hand, the present application adopts the following technical scheme:

the utility model provides a box fan, includes the casing, set up in the back cover at casing rear portion and rotationally set up the box body of changeing of casing front portion, the back cover and/or be provided with a plurality of aviation baffles on the box body of changeing, the both ends of aviation baffle are provided with the pivot, the aviation baffle can wind the pivot rotates.

Preferably, the axes of the plurality of air deflectors passing through the rotating shaft are arranged in parallel with each other, or the plurality of air deflectors are radially arranged along the circumferential direction.

Preferably, the plurality of air deflectors are radially arranged along the circumferential direction, and the widths of the air deflectors gradually increase from the radial inner side to the radial outer side;

or alternatively, the process may be performed,

the axes of the air deflectors passing through the rotating shaft are arranged in parallel, and the air deflectors are rectangular.

Preferably, the blade rotating body further comprises a driving device, and the driving device is used for driving the air deflector to rotate.

Preferably, the driving device comprises a plurality of micro motors respectively connected with the plurality of air deflectors.

Preferably, the hinge body further comprises an outer frame and an inner frame, the air deflector is rotatably arranged between the outer frame and the inner frame, and the driving device is embedded in the outer frame or the inner frame.

Preferably, the driving device is embedded in the outer frame, the housing comprises a front panel, a through hole is formed in the front panel, the page turning body is located in the through hole, a conductor ring is arranged in the through hole, the conductor ring is connected with a power supply of the page turning fan, a conductive contact is arranged on the driving device, and the conductive contact abuts against the conductor ring and can move relative to the conductor ring.

Preferably, the driving device is used for driving the air deflectors to swing between a first position and a second position, wherein adjacent air deflectors are mutually closed in the first position, and openings for air flow to pass through are formed between adjacent air deflectors in the second position.

Preferably, the axes of the air deflectors passing through the rotating shaft are arranged in parallel, the air deflectors are connected through a connecting rod mechanism, and when one air deflector rotates, the connecting rod mechanism can drive the other air deflectors to synchronously rotate.

Preferably, the link mechanism comprises a first link and a plurality of second links connected with the air deflectors respectively, the second links are parallel to each other, one end of each second link is hinged with the air deflector, and the other end of each second link is hinged with the first link.

On the other hand, the application adopts the following technical scheme:

the control method for controlling the box fan comprises the steps that when the box fan is started, the box fan controls the driving device to rotate the air deflector to a second position; and/or the number of the groups of groups,

when the box fan receives a closing instruction, the box fan controls the driving device to rotate the air deflector to a first position.

According to the box fan provided by the application, the air deflector is arranged on the rear cover and/or the box body and can rotate around the rotating shaft of the box fan, the air outlet direction of the box fan can be changed by changing the rotating angle of the air deflector so as to meet different requirements of users, the air deflector can be mutually closed when the box fan is not used, the dustproof effect is achieved, and in addition, different positions of the air deflector can be conveniently cleaned by changing the overturning angle of the air deflector.

Drawings

The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of an air deflector of a box fan according to an embodiment of the present application in a first position;

fig. 2 is a perspective view of an air deflector of a box fan according to an embodiment of the present application in a second position;

fig. 3 is a front view of an air deflector of a box fan according to an embodiment of the present application in a second position;

fig. 4 is a front view of a fan deflector in a second position according to another embodiment of the present application;

fig. 5 is a schematic structural view of a connection between an air deflector and a driving device according to an embodiment of the present application;

fig. 6 shows a schematic structural diagram of an air deflector and a link mechanism according to an embodiment of the present application.

In the figure, 1, a shell; 11. a front panel; 12. a through hole; 13. side coaming; 2. a page turning body; 21. an air deflector; 22. a rotating shaft; 23. an outer frame; 24. an inner frame; 25. a driving device; 251. a coil; 252. a magnet; 253. a conductive contact; 26. a link mechanism; 261. a first link; 262. a second link; 27. a conductor loop.

Detailed Description

The present application is described below based on embodiments, and it will be understood by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

The application provides a box fan, as shown in fig. 1 and 2, which comprises a shell 1, a rear cover (not shown in the figure) arranged at the rear part of the shell 1 and a box 2 rotatably arranged at the front part of the shell 1, specifically, the shell 1 comprises a front panel 11, a rear panel (not shown in the figure) and a side wall 13, a through hole 12 is arranged on the front panel 11, the box 2 is positioned in the through hole 12, the rear panel is also provided with the through hole, the rear cover is arranged at the through hole of the rear panel, and a fan blade (not shown in the figure) and a driving motor (not shown in the figure) for driving the fan blade to rotate are arranged in a space enclosed by the shell 1, the rear cover and the box 2. The rotating blade 2 can share a driving motor with the fan blade, and can be independently provided with another driving device to drive the rotating blade to rotate.

Wherein, be provided with a plurality of aviation baffles 21 on the page or leaf body 2, the both ends of aviation baffle 21 are provided with pivot 22, and aviation baffle 21 can revolute the pivot and rotate, so, can change the air-out direction of page or leaf fan through the turned angle who changes aviation baffle 21 to satisfy user's different demands, and when not using the page or leaf fan, as shown in fig. 1, can be with aviation baffle 21 mutual closure, play dustproof effect and the clearance to aviation baffle 21 conveniently.

The arrangement manner of the air deflectors 21 on the hinge body 2 is not particularly limited, in order to facilitate the rotation of the air deflectors 21, in a preferred embodiment, as shown in fig. 3, a plurality of air deflectors 21 are radially arranged along the circumferential direction, specifically, the hinge body 2 includes an outer frame 23 and an inner frame 24, in order to facilitate the rotation of the hinge body 2, preferably, the through holes 12 are arranged in a circular shape, the outer frame 23 and the inner frame 24 are both arranged in a circular shape, and the air deflectors 21 are rotatably arranged between the outer frame 23 and the inner frame 24. Preferably, the end surfaces of the two ends of the air deflector 21 are convexly provided with rotating shafts 22, the outer frame 23 and the inner frame 24 are provided with rotating shaft holes, and the rotating shafts 22 are rotatably arranged in the rotating shaft holes. The spindle bores are preferably provided on the radially inner side of the outer frame 23 and the radially outer side of the inner frame 24. The rotation shaft 22 is preferably provided at substantially the middle in the width direction of the air deflector 21. Of course, it is understood that the arrangement positions of the shaft holes and the shaft 22 may be interchanged, that is, the shaft holes are provided on the air deflector 21, and the shaft is provided on the outer frame 23 and the inner frame 24. In another preferred embodiment, as shown in fig. 4, the axes of the plurality of air deflectors 21 passing through the rotating shaft are disposed parallel to each other, for example, the plurality of air deflectors 21 extend in a vertical direction or a horizontal direction, and the connection manner of the air deflectors 21 in the embodiment shown in fig. 3 is similar to that of the outer frame 23 and the inner frame 24, and will not be described again.

The air deflectors 21 may be any structure capable of rotating around the rotating shaft 22, and in order to improve the dust-proof effect, preferably, when the plurality of air deflectors 21 are radially arranged along the circumferential direction (refer to fig. 3), the width of the air deflectors 21 gradually increases from inside to outside along the radial direction, for example, the air deflectors are in a fan ring shape or a trapezoid shape, and when the axes of the plurality of air deflectors 21 passing through the rotating shaft are mutually parallel (refer to fig. 4), the air deflectors 21 are rectangular, so that when the air deflectors 21 rotate to the closed position, no gap or a small gap exists between the adjacent air deflectors 21, dust is effectively prevented from entering the fan, the inside fan blade of the fan and the cleaning of the driving motor of the fan blade are ensured, and the service life of the fan is prolonged.

Further preferably, in order to realize automatic turning of the fan air deflector 21, the blade-rotating body 2 further comprises a driving device 25, and the driving device 25 drives the air deflector 21 to rotate.

In one embodiment, the driving device 25 includes a plurality of driving units respectively connected to the plurality of air deflectors 21, and each air deflector 21 is driven to turn by one driving unit, which may be a micro motor, for example. In order to protect the driving device 25 and improve flatness of the outer appearance, it is preferable that the driving device 25 is embedded in the outer frame 23 or the inner frame 24, and in view of convenience in power connection and stress balance, the driving device 25 is preferably embedded in the outer frame 23. In a specific embodiment, as shown in fig. 5, the micro-motor includes a coil 251 fixedly disposed and a magnet 252 sleeved in the coil 251, the magnet 252 is connected to the rotating shaft 22 through a connection structure, when the coil 251 is energized, the magnet 252 can drive the rotating shaft 22 to rotate, and the direction of rotation of the magnet 252 and the rotating shaft 22 connected to the magnet 252 can be changed by changing the direction of the current flowing in the coil 251. In this way, the driving device 25 can drive the air deflectors 21 to swing between a first position, as shown in fig. 1, in which adjacent air deflectors 21 are mutually closed to close the space between the outer frame 23 and the inner frame 24, and a second position, as shown in fig. 2 to 4, in which the air deflectors 21 are opened to form openings (i.e., air outlets) for air flow to pass through between the adjacent air deflectors 21. Further, the opening degree of the air deflector 21 can be further adjusted by the driving device 25, so as to change the air outlet direction and the air outlet quantity, for example, a plurality of gears can be set, and the opening degree of the air deflector 21 can be changed by setting different gears, so that the effect of changing the air outlet direction and the air outlet quantity is achieved.

In another embodiment, the plurality of air deflectors 21 are connected through a transmission mechanism, and the driving device 25 drives only one air deflector 21 to rotate, so that the other air deflectors 21 can synchronously rotate under the drive of the transmission mechanism. For example, as shown in fig. 6, when the axes of the plurality of air deflectors 21 passing through the rotating shaft are arranged in parallel with each other, the plurality of air deflectors 21 are connected by the link mechanism 26, and when one of the air deflectors 21 rotates, the other air deflectors 21 can be driven to rotate synchronously by the link mechanism 26. The link mechanism 26 includes, for example, a first link 261 and a plurality of second links 262 connected to the plurality of air deflectors 21, respectively, the plurality of second links 262 being parallel to each other, one end of the second link 262 being hinged to the air deflector 21, and the other end being hinged to the first link 261, so that the plurality of air deflectors 21 can be rotated synchronously under the interaction of the first link 261 and the second link 262.

Further, since the whole page turning body 2 rotates relative to the casing 1, the driving device 25 on the page turning body 2 also rotates, and in order to facilitate the power connection of the driving device 25, preferably, as shown in fig. 3 and 5, a conductor ring 27 is disposed in the through hole 12 of the front panel 11, and the conductor ring 27 may be any material capable of conducting electricity, for example, copper. The conductor loop 27 is connected to the power supply of the box fan and the drive means 25 is provided with electrically conductive contacts 253, for example in the embodiment shown in fig. 5, the electrically conductive contacts 253 are connected to the coil 251, the electrically conductive contacts 253 being arranged against the radially inner side of the conductor loop 27 and being movable relative to the conductor loop 27, so that an electrical connection of the moving drive means 25 to a stationary power supply is achieved. To facilitate the movement of the conductive contact 253 relative to the conductive ring 27, the end of the conductive contact 253 is provided with an arc surface, for example, the conductive contact 253 may be in the shape of a sphere, a cylinder surface, or the like. To ensure safety of use, the conductor loop 27 is preferably embedded in the outer frame 23.

Of course, it will be understood that the rear cover can also be provided with an air deflector similar to the structure of the hinge body 2, and the rear cover can not rotate, so that a conductor ring and an electric contact structure are not required to be arranged, and a conventional driving device such as a motor is directly arranged to drive the air deflector on the rear cover to rotate. Similarly, the air deflector on the rear cover can also swing between a first position and a second position under the drive of the drive device.

In a preferred embodiment, in the control method of the above box fan, when the box fan is turned on, the box fan control driving device 25 rotates the rear cover and/or the air deflector 21 on the box fan 2 to the second position, and when the box fan receives a closing instruction, the box fan control driving device 25 rotates the rear cover and/or the air deflector 21 on the box fan 2 to the first position, so that a relatively closed space is formed inside the box fan in a non-use state, dust and foreign matters can be effectively prevented from entering the box fan, a good dustproof protection effect is achieved, and the service life of the box fan is prolonged. In addition, the driving device 25 can be controlled to turn over the air deflector 21 for 180 degrees, so that the two side surfaces of the air deflector 21 can be cleaned conveniently, and the turning over can be realized by arranging corresponding buttons on the box fan to control the driving device to drive the air deflector 21 to turn over or manually turn over.

It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (4)

1. The blade-rotating fan comprises a shell, a rear cover arranged at the rear part of the shell and a blade-rotating body rotatably arranged at the front part of the shell, and is characterized in that a plurality of air deflectors are arranged on the rear cover and/or the blade-rotating body, two ends of each air deflector are provided with rotating shafts, and the air deflectors can rotate around the rotating shafts;

the plurality of air deflectors are radially arranged along the circumferential direction;

the blade rotating body further comprises a driving device, and the driving device is used for driving the air deflector to rotate;

the driving device comprises a plurality of micro motors which are respectively connected with the plurality of air deflectors;

the blade-turning body also comprises an outer frame and an inner frame, the air deflector is rotatably arranged between the outer frame and the inner frame,

the driving device is embedded in the outer frame, the shell comprises a front panel, a through hole is formed in the front panel, the page turning body is located in the through hole, a conductor ring is arranged in the through hole and connected with a power supply of the page turning fan, a conductive contact is arranged on the driving device, and the conductive contact abuts against the conductor ring and can move relative to the conductor ring;

the rotating shaft is arranged on the radial inner side surface of the outer frame; the miniature motor comprises a coil fixedly arranged on the outer frame and a magnet sleeved in the coil, the magnet is connected with the rotating shaft through a connecting structure, and the conductive contact is connected with the coil.

2. The box fan according to claim 1, wherein the width of the air deflector gradually increases from the radially inner side to the radially outer side.

3. The fan of claim 1, wherein the drive means is configured to drive the air deflectors to oscillate between a first position in which adjacent air deflectors are closed to each other and a second position in which openings are formed between adjacent air deflectors through which air flows.

4. A control method for controlling the box fan according to claim 3, wherein when the box fan is turned on, the box fan controls the driving device to rotate the air deflector to the second position; and/or the number of the groups of groups,

when the box fan receives a closing instruction, the box fan controls the driving device to rotate the air deflector to a first position.