Patent Description:
The present invention relates to a fan, in particular to an air deflector motion device in a fan and a fan.

Most of existing upper and lower air guide mechanisms of cooling fans on the market are manual, and part of the cooling fans with automatic upper and lower air guide mechanism have a problem of shaking during operation, specifically, during operation, an air deflector bounces faintly or suddenly.

The main reason of shaking is that the center of gravity of the air deflector is out of the axis of the air deflector during operation of the air deflector. The technology known to the inventors discloses an air direction adjusting device of an air conditioner, which includes an air deflector and a connecting rod. A shaft sleeve is arranged on an exhaust outlet for discharging the internal air of the air conditioner. The air deflector is rotationally connected to one side of the shaft sleeve, and adjusts the air direction of the air discharged to the exhaust outlet. A motor drives the rotation of the air deflector. A protrusion for driving is arranged on the air deflector, closest to the motor, in a plurality of air deflectors, and is located at a position which is eccentric to the rear based on the center of the air deflector. A driving connecting rod is connected between the protrusion for driving and the shaft of the motor. The protrusion for driving may obtain a driving force transmitted by the motor. The protrusion for driving and an air deflector connecting part connected to the shaft sleeve are on the same horizontal axis.

Although the above technical solution has solved the problem of shaking of the air deflector when it automatically swings, it has not solved the problem of sudden shaking of the air deflector at a certain position during movement. Moreover, the above technical solution has a relatively complex structure and requires high precision of structure setting.

Examples of an air deflector motion device according to the prior art are known from <CIT>.

In order to solve the problems in the prior art, the present invention provides an air deflector motion device and a fan.

To achieve the purpose, the specific technical solution of the air deflector motion device and the fan of the present invention is as follows.

In some embodiments, the driver is a motor.

In some embodiments, the crank includes a first protruding member, and the connecting rod is provided with a first through hole cooperating with the first protruding member.

In some embodiments, the first protruding member includes a first main body and two first protruding parts opposite to each other and protrudingly arranged on the first main body. The two first protruding parts are disposed with a distance.

In some embodiments, there are plurality of air deflectors, and the connecting rod is respectively connected with the plurality of air deflectors to synchronize the motion of the plurality of air deflectors.

In some embodiments, the second rotating shaft is formed integrally with the connecting rod.

In some embodiments, the first rotating shaft is formed integrally with the air deflector.

In some embodiments, the second rotating shaft is provided with a third protruding member, and the air deflector is provided a third through hole cooperating with the third protruding member.

In some embodiments, the third protruding member includes a third main body and two third protruding parts opposite to each other and protrudingly arranged on the third main body. The two third protruding parts are disposed with a distance.

The fan includes the air deflector motion device described above.

The air deflector motion device and the fan described in the present invention have the following advantages.

Embodiments of an air deflector motion device and a fan in the present invention are described below with reference to the accompanying drawings. In the accompanying drawings:.

In above accompanying drawings: <NUM>: Air deflector; <NUM>: Third through hole; <NUM>: Air outlet frame; <NUM>: Second through hole; <NUM>: First rotating shaft; <NUM>: Second protruding member; <NUM>: Second main body; <NUM>: Second protruding part; <NUM>: Second rotating shaft; <NUM>: Third protruding member; <NUM>: Third main body; <NUM>: Third protruding part; <NUM>: Driving assembly; <NUM>: Driver; <NUM>: Connecting rod; <NUM>: First through hole; <NUM>: Crank; <NUM>: First protruding member; <NUM>: First main body; and <NUM>: First protruding part.

In order to better understand the purposes, structures and functions of the present invention, the air deflector motion device and the fan of the present invention are further elaborated below in combination with the accompanying drawings.

In the descriptions of the present invention, it is to be understood that orientation or position relationships indicated by terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are orientation or position relationships shown in the drawings, are adopted not to indicate or imply that indicated devices or components must be in specific orientations or structured and operated in specific orientations but only to conveniently describe the present invention and simplify descriptions.

Terms "first" and "second" are only adopted for description and should not be understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Therefore, a feature defined by "first" and "second" may explicitly or implicitly indicate inclusion of one or more features.

In the description of the present invention, it is to be noted that unless otherwise definitely specified and limited, terms "mount", "connected" and "connect" should be broadly understood. For example, the terms may refer to fixed connection and may also refer to detachable connection or integrated connection. The terms may refer to direct mutual connection, may also refer to indirect connection through a medium and may refer to communication in two components. For those of ordinary skill in the art, specific meanings of these terms in the present invention can be understood according to a specific condition.

Referring to <FIG>, the present invention presents an air deflector motion device, which includes an air deflector <NUM> and an air outlet frame <NUM>. The air deflector <NUM> is hinged to the air outlet frame <NUM> by a first rotating shaft <NUM>. The air deflector motion device further includes a driving assembly <NUM> hinged to the air deflector <NUM> by a second rotating shaft <NUM>. The driving assembly <NUM> is preset with a driving range, and the driving assembly <NUM> drives the air deflector to rotate around the first rotating shaft <NUM> in the driving range, so that the center of gravity of the air deflector <NUM> is located at the side, close to the second rotating shaft <NUM>, of the first rotating shaft <NUM>, or the center of gravity of the air deflector <NUM> is located above or below the first rotating shaft <NUM> in the vertical direction.

In the air deflector motion device of the present invention, the air deflector <NUM> is hinged to the air outlet frame <NUM> by the first rotating shaft <NUM>, and the driving assembly <NUM> is hinged to the air deflector <NUM> by the second rotating shaft <NUM>, so as to drive the air deflector <NUM> to rotate, and the center of gravity of the air deflector <NUM> is controlled at the side, close to the second rotating shaft <NUM>, of the first rotating shaft <NUM>, or above or below the first rotating shaft <NUM> in the vertical direction, so as to prevent sudden shaking caused by a sudden shift of the center of gravity to the side, far away from the second rotating shaft <NUM>, of the first rotating shaft <NUM>, which ensures the fluency of operation of the air deflector <NUM>.

It is to be noted that the driving range varies according to the length of different air deflectors. The driving range is set artificially, and may be obtained by multiple tests on the same air deflector, or calculated by formula, or conservatively limited in a small range, but in any way, the center of gravity of the air deflector should be at the side, close to the second rotating shaft, of the first rotating shaft, or above or below the first rotating shaft in the vertical direction. The selected benchmark of the driving range is not limited here.

Further, the driving range is that the driving assembly <NUM> drives the air deflector <NUM> to rotate, so that the center of gravity of the air deflector <NUM> is at the side, close to the first rotating shaft <NUM>, of the second rotating shaft <NUM>, or the center of gravity of the air deflector <NUM> is located above or below the second rotating shaft <NUM> in the vertical direction. By controlling the center of gravity of the air deflector <NUM> between the first rotating shaft <NUM> and the second rotating shaft <NUM>, it is ensured that a sudden change in force on the air deflector <NUM> due to the change of the center of gravity of the air deflector <NUM> will not occur, thus avoiding the sudden shaking of the air deflector <NUM> and further ensuring the fluency of operation of the air deflector.

Further, the driving assembly includes a driver <NUM> and a connecting rod <NUM> connected with the driver <NUM>. The connecting rod <NUM> is connected with the second rotating shaft <NUM>. The driving assembly further includes a crank <NUM> arranged between the driver <NUM> and the connecting rod <NUM>. The driver <NUM> is a motor. The crank <NUM> is hinged to the connecting rod <NUM>. The crank <NUM> includes a first protruding member <NUM>, and the connecting rod <NUM> is provided with a first through hole <NUM> cooperating with the first protruding member <NUM>. The first protruding member <NUM> includes a first main body <NUM> and two first protruding parts <NUM> opposite to each other and protrudingly arranged on the first main body <NUM>. The two first protruding parts <NUM> are disposed with a distance. In this way, when the crank <NUM> and the connecting rod <NUM> are mounted, the first protruding member <NUM> is inserted into the first through hole <NUM>, and the two first protruding parts <NUM> get close to the gap between them, so that the first protruding member <NUM> enters into the first through hole <NUM>, and after that, the two first protruding parts <NUM> move away from each other, the first protruding member <NUM> is mutually clamped with the first through hole <NUM>, the connecting rod <NUM> is hinged to the crank <NUM>, the crank <NUM> is connected with the driver <NUM>, the connecting rod <NUM> is connected with the air deflector <NUM>, the driver <NUM> drives the crank <NUM> to rotate, and the crank <NUM> drives the connecting rod <NUM> to move, so as to drive the air deflector <NUM> to rotate around the first rotating shaft <NUM>. By setting the length of the crank <NUM>, a moving range of the connecting rod <NUM> is controlled to control the rotating range of the air deflector <NUM>, so as to control the moving range of the center of gravity of the air deflector <NUM>. The structure is simple and reliable.

Further, there are plurality of air deflectors <NUM>, and the connecting rod <NUM> is respectively connected with the plurality of air deflectors <NUM> to synchronize the motion of the plurality of air deflectors <NUM>. The second rotating shaft <NUM> is formed integrally with the connecting rod <NUM>. The second rotating shaft <NUM> is provided with a third protruding member <NUM>, and the air deflector <NUM> is provided with a third through hole <NUM> cooperating with the third protruding member <NUM>. The third protruding member <NUM> includes a third main body <NUM> and two third protruding parts <NUM> opposite to each other and protrudingly arranged on the third main body <NUM>. The two third protruding parts are disposed with a distance. In this way, when the second rotating shaft <NUM> and the air deflector <NUM> are mounted, the third protruding member <NUM> is inserted into the third through hole <NUM>, and the two third protruding parts <NUM> get close to the gap between them, so that the third protruding member <NUM> enters into the third through hole <NUM>, and after the third protruding member <NUM> enters into the third through hole <NUM>, the two third protruding parts <NUM> move away from each other. The third protruding member <NUM> is mutually clamped with the third through hole <NUM>, so that the second rotating shaft <NUM> is hinged to the air deflector <NUM>. The connecting rod <NUM> is connected with the second rotating shaft <NUM>, so that the connecting rod <NUM> is hinged to the air deflector <NUM>. The plurality of air deflectors <NUM> are connected with the connecting rod <NUM> through the above connection mode, and the connecting rod <NUM> drives the plurality of air deflectors <NUM> to move synchronously, thus realizing the synchronous control of the plurality of air deflectors <NUM>.

Further, the first rotating shaft <NUM> is formed integrally with the air deflector <NUM>, the first rotating shaft <NUM> is provided with a second protruding member <NUM>, the air outlet frame <NUM> is provided with a second through hole <NUM> cooperating with the second protruding member <NUM>, the second protruding member <NUM> includes a second main body <NUM> and two second protruding parts <NUM> opposite to each other and protrudingly arranged on the second main body <NUM>, and the two second protruding parts <NUM> are disposed with a distance. When the air deflector <NUM> and the air outlet frame <NUM> are mounted, the second protruding member <NUM> is inserted into the second through hole <NUM>, and the two second protruding parts <NUM> get close to the gap between them, so that the second protruding member <NUM> enters into the second through hole <NUM>, and after the second protruding member <NUM> enters into the second through hole <NUM>, the two second protruding parts <NUM> move away from each other. The second protruding member <NUM> is mutually clamped with the second through hole <NUM>, so that the air deflector <NUM> is hinged to the air outlet frame <NUM>, and then the air deflector <NUM> may rotate around the first rotating shaft <NUM>.

In the air deflector motion device described in the present invention, the air deflector <NUM> is hinged to the air outlet frame <NUM> by the first rotating shaft <NUM>, and the driving assembly <NUM> is hinged to the air deflector <NUM> by the second rotating shaft <NUM>, so as to drive the air deflector <NUM> to rotate, and the center of gravity of the air deflector <NUM> is controlled at the side, close to the second rotating shaft <NUM>, of the first rotating shaft <NUM>, or above or below the first rotating shaft <NUM> in the vertical direction, so as to prevent sudden shaking caused by a sudden shift of the center of gravity to the side, far away from the second rotating shaft <NUM>, of the first rotating shaft <NUM>, which ensures the fluency of operation of the air deflector <NUM>. By controlling the center of gravity of the air deflector <NUM> between the first rotating shaft <NUM> and the second rotating shaft <NUM>, the control of the center of gravity of the air deflector <NUM> is further ensured, and the fluency of operation of the air deflector <NUM> is further ensured. Through a structural design of the motor, the crank <NUM> and the connecting rod <NUM>, moving track of the center of gravity of the air deflector <NUM> can be controlled, and only the length of the crank <NUM> needs to be controlled, the center of gravity of the air deflector <NUM> can be controlled, so the structure is simple and the control is reliable. By synchronously controlling the plurality of air deflectors <NUM> through the connecting rod <NUM>, the synchronization of motion of the air deflectors <NUM> is effectively ensured.

The present invention presents a fan, which includes the air deflector motion device described above.

Claim 1:
An air deflector motion device, comprising an air deflector (<NUM>) and an air outlet frame (<NUM>), the air deflector (<NUM>) is of a strip-shaped structure; the air deflector (<NUM>) being hinged to the air outlet frame (<NUM>) by a first rotating shaft (<NUM>); the first rotating shaft (<NUM>) has two protruding ends; wherein the air deflector motion device further comprises a driving assembly (<NUM>) hinged to the air deflector (<NUM>) by a second rotating shaft (<NUM>); the second rotating shaft (<NUM>) has only one protruding end; the driving assembly (<NUM>) is preset with a driving range, and the driving assembly (<NUM>) drives the air deflector (<NUM>) to rotate around the first rotating shaft (<NUM>) in the driving range, so that a center of gravity of the air deflector (<NUM>) is located at a side of the first rotating shaft (<NUM>) close to the second rotating shaft (<NUM>), or a center of gravity of the air deflector (<NUM>) is located between the first rotating shaft (<NUM>) and the second rotating shaft (<NUM>);
the air deflector motion device is characterised in that the driving assembly (<NUM>) comprises a driver (<NUM>) and a connecting rod (<NUM>) connected with the driver (<NUM>), and the connecting rod (<NUM>) is connected with the second rotating shaft (<NUM>);
wherein the driving assembly (<NUM>) further comprises a crank (<NUM>) arranged between the driver (<NUM>) and the connecting rod (<NUM>); the crank (<NUM>) is hinged to the connecting rod (<NUM>).