WO2020228358A1 - 一种风扇及风扇灯 - Google Patents

一种风扇及风扇灯 Download PDF

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Publication number
WO2020228358A1
WO2020228358A1 PCT/CN2020/070005 CN2020070005W WO2020228358A1 WO 2020228358 A1 WO2020228358 A1 WO 2020228358A1 CN 2020070005 W CN2020070005 W CN 2020070005W WO 2020228358 A1 WO2020228358 A1 WO 2020228358A1
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WIPO (PCT)
Prior art keywords
blade
mounting frame
outer end
fan
motor
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PCT/CN2020/070005
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English (en)
French (fr)
Inventor
李敏
Original Assignee
李敏
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Publication date
Application filed by 李敏 filed Critical 李敏
Priority to DE212020000296.7U priority Critical patent/DE212020000296U1/de
Publication of WO2020228358A1 publication Critical patent/WO2020228358A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • F21V33/0096—Fans, e.g. ceiling fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/088—Ceiling fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable

Definitions

  • the invention relates to the technical field of fans, in particular to a fan and a fan lamp.
  • Ceiling fans are one of the widely used ones. In buildings, ceiling fans have the feature of not occupying people's space because they are installed on the ceiling. When used with air conditioning systems and air conditioners, the cooling effect is even more significant.
  • Ceiling fan lamp is the perfect combination of lamp and ceiling fan. It has both the decorativeness of the lamp and the practicality of the fan. It is currently a widely used electrical appliance in decoration.
  • the fan blades are directly installed on the rotating part.
  • the fan blades rotate relative to the rotating part in the horizontal direction under the action of centrifugal force to unfold, because the installation tightness of each installation position cannot be completely unified.
  • there are certain errors in the structure of the fan blades and connectors in the manufacturing process resulting in slight weight differences between multiple fan blades, which will cause greater vibration when rotating at high speeds, driving the entire fan to produce obvious shaking, The balance is poor, and it will cause damage to the installation structure after working for a long time, and there is a safety hazard.
  • the vibration of the fan blade will also generate a lot of noise, and the use effect is not good.
  • the fan blades are generally retractable, and the tail ends of the fan blades are upturned. When retracted, the fan blades overlap each other to reduce the space occupied by the fan blades and increase the fan blades in a certain space. After a long period of use, the fan blades will be deformed under the influence of gravity and centrifugal force, which may cause the fan blades to jam each other, so that the fan blades cannot be retracted normally, affecting normal use; and the existing fans
  • the blades are generally inclined flat design, and the surface is straight and lacks curvature. When the fan blades are too close to the ceiling, the wind force is obviously insufficient, and the air flow effect is not good. It needs to take up a large vertical installation space and is used in lower floors. More inconvenient.
  • the main purpose of the present invention is to provide a fan and fan lamp, aiming to reduce the vibration of the fan blade, thereby reducing the shaking of the fan lamp, improving the balance of the fan lamp, reducing the noise during use, and optimizing the structure of the fan blade. Avoid jamming between the fan blades and affect the normal folding and unwinding of the fan blades, and improve the blowing effect.
  • the present invention proposes a fan, which includes a boom and a motor fixed at the bottom end of the boom, and a rotating disk driven by the motor is provided on the motor, A plurality of mounting brackets are installed on the rotating disk, and the mounting bracket can swing up and down in the vertical direction with the connection point with the rotating disk as an axis, and the outer end of each mounting bracket can be rotatably
  • a blade is installed, the blade can be turned on the mounting frame to open and retract, the part between the front edge and the rear edge of the blade protrudes upwards, the cross section of the blade is an upward convex arc, the front of the blade
  • the edge is a concave arc shape
  • the rear edge is a convex arc shape
  • the blade is generally arcuate when viewed from the horizontal plane
  • the front edge of the blade is located in a higher horizontal plane than the rear edge
  • the blade includes a connecting end and an outer edge.
  • the height of the front edge of the blade is at the same level from the connecting end to the outer end, and the height of the rear edge of the blade is at the same level from the connecting end to the outer end Height, and there is a gap between the outer end of the blade and the connecting end of another adjacent blade, and there is no overlap between the two adjacent blades.
  • the connecting end of the blade is provided with a mounting hole
  • the outer end of the mounting frame is provided with a slot with a through hole
  • a slot is provided in the slot so that the blade can be opposed to the mounting frame.
  • a rotating bearing, a bolt passing through the bearing and the mounting frame is arranged in the mounting hole, and the bottom end of the bolt is threadedly connected with a rotating cover that can rotate with the blade.
  • the blade is connected with the mounting frame.
  • a torsion spring is provided in the rotating cover, one end of the torsion spring is fixed on the mounting frame, and the other end is fixed on the rotating cover.
  • the rotating cover rotates to make the torsion spring Deformation produces elasticity.
  • an upwardly protruding limit block is provided on the rotating cover, and an outer end of the mounting frame is provided with a clamping position that is matched with the limit block and can limit the rotating cover.
  • a protective cover that can cover the motor is sleeved on the boom.
  • a fan lamp includes a suspension rod and a motor fixed at the bottom end of the suspension rod.
  • a rotating disk driven by the motor is provided on the motor, and a plurality of mounting frames are installed on the rotating disk.
  • the mounting frame can swing up and down in the vertical direction with the connection point with the rotating disk as an axis, and a blade can be rotatably mounted on the outer end of each mounting frame, and the blade can be rotated on the mounting frame.
  • the part between the front edge and the rear edge of the blade bulges upwards
  • the cross section of the blade is an upward convex arc
  • the front edge of the blade is a concave arc
  • the rear edge is convex Arc-shaped
  • the blade is generally bow-shaped when viewed from a horizontal plane
  • the front edge of the blade is located in a higher horizontal plane than the rear edge
  • the blade includes a connecting end and an outer end, when a plurality of the blades are in the stowed position
  • the height of the front edge of the blade is at the same level from the connecting end to the outer end
  • the height of the rear edge of the blade is at the same level from the connecting end to the outer end
  • the outer end of the blade is at the same level as the adjacent other blade
  • a gap is generated between the connecting ends of the two adjacent blades, there is no overlap between the two adjacent blades, and a lamp is provided at the bottom of the motor.
  • the beneficial effect of the present invention is: the present invention sets the blade on the mounting frame by setting a mounting frame that can swing up and down. When the blade is opened and rotated by centrifugal force, the blade and the mounting frame can be integrated in the vertical direction. Swing, adjust to the most balanced position, offset the vibration of the fan blade due to installation and weight errors, and perform internal self-adjustment, thereby reducing the overall shaking of the fan lamp, improving the balance effect of the fan lamp, and improving the stability of the installation;
  • the outer end (tail end) and the connecting end (head end) of the blade are in the same plane, there is no upturned part, and there is a certain distance between two adjacent blades, which will not cover overlap and avoid long time. After use, the blade is deformed and the blade installation structure is loose, which causes the blades to jam each other and cannot be retracted normally to ensure normal use;
  • the blades are curved upwards on the surface, which is different from the original straight and inclined fan blades. It has a better effect of driving air flow. It can be installed closer to the ceiling without affecting the air volume and maintaining the blowing effect.
  • Figure 1 is a perspective view of the present invention in an unfolded state
  • Figure 2 is a perspective view of the present invention in a stowed state
  • Figure 3 is a top view of the present invention in an unfolded state
  • Figure 4 is a perspective view of the structure of the present invention in an expanded state
  • Figure 5 is an exploded view of the present invention
  • Figure 6 is a schematic diagram of an embodiment of the present invention in a stowed state
  • Figure 7 is a schematic diagram of an embodiment of the present invention in an expanded state
  • Figure 8 is a top view of the blade
  • Fig. 9 is a cross-sectional view of Fig. 8.
  • a fan includes a boom 1 and a motor 2 fixed to the bottom end of the boom 1.
  • the motor 2 is an outer rotor motor with the rotor outside, the stator inside, and the suspension
  • the bottom end of the rod 1 is fixedly connected with the stator of the motor 2.
  • the motor 2 is provided with a rotating disk 3 driven by the motor 2, and the rotating disk 3 is fixedly connected to the rotor of the motor 2 and rotates as the rotor rotates.
  • a plurality of mounting brackets 4 are installed on the rotating disk 3, and the mounting bracket 4 can swing up and down in the vertical direction with the connection with the rotating disk 3 as an axis.
  • the mounting bracket 4 can be provided with a plurality of mounting brackets 4 matching
  • the mounting base 45, the mounting frame 4 can be mounted on the mounting base 45 using hinges or the like, so that the mounting frame 4 swings up and down around the axis 44 of the mounting base 45.
  • a blade 5 can be rotatably mounted on the outer end of each mounting frame 4, and the blade 5 can be rotated on the mounting frame 4 to realize opening and closing.
  • the lower surface of the blade 5 is provided with a reinforcing rib 52 (as shown in Figure 9). ) To improve the structural strength of the blade 5.
  • the motor 2 rotates to drive the rotating disk 3 to rotate, thereby driving the mounting frame 4 and the blade 5 to rotate.
  • the blade 5 rotates relative to the mounting frame 4 under the action of centrifugal force and expands in the horizontal direction. As the rotating disk 3 rotates, the air flows to generate wind power.
  • the blades 5 and the mounting frame 4 swing slightly in the vertical direction to perform self-adjustment, so that multiple blades 5 cooperate to achieve a balance, reduce the vibration of the blades 5, thereby reducing the overall shaking of the fan, improving stability, and operation More stable and lower noise.
  • the blade 5 when the blade 5 is in the retracted position, the part between the front edge 53 and the rear edge 54 of the blade 5 protrudes upward, and the cross section of the blade 5 is an upward protruding arc (as shown in Fig. 8),
  • the lower surface of the blade 5 is concave (forms a depression), the upper surface of the blade 5 is convex, the front edge 53 of the blade 5 is a concave arc, and the rear edge 54 is a convex arc.
  • the blade 5 is viewed from a horizontal plane. The whole is arcuate, and the front edge 53 of the blade 5 is located in a higher horizontal plane than the rear edge 54.
  • the blade 5 includes a connecting end and an outer end.
  • the height of the front edge 53 of the blade 5 is at the same level from the connecting end to the outer end, and the height of the rear edge 54 of the blade 5 is from the connecting end to the outer end.
  • the outer ends are all at the same level, that is, the blade 5 has no upturned part, and the connecting end and the outer end are at the same level.
  • the connecting end of the blade 5 is provided with a mounting hole 51, and the outer end of the mounting frame 4 is provided with a slot 41 with a through hole.
  • the slot 41 is provided with a bearing 42 capable of rotating the blade 5 relative to the mounting frame 4. 42 is arranged between the blade 5 and the mounting frame 4, so that the blade 5 can rotate freely relative to the mounting frame 4, reducing wear and noise.
  • the mounting hole 51 is provided with a bolt 8 passing through the bearing 42 and the mounting frame 4.
  • the bottom end of the bolt 8 is screwed with a rotating cover 6 that can rotate with the blade 5.
  • the bolt 8 cooperates with the rotating cover 6 to connect the blade with the mounting frame 4 stand up.
  • a torsion spring 7 is provided in the rotating cover 6.
  • One end of the torsion spring 7 is fixed on the mounting frame 4 and the other end is fixed on the rotating cover 6.
  • the rotating cover 6 rotates to deform the torsion spring 7 to generate elastic force.
  • the motor 2 stops working, the centrifugal force disappears.
  • the torsion spring 7 resets, thereby pushing the rotating cover 6 to rotate and driving the blade 5 to rotate and reset, so that the blade 5 rotates to the retracted position.
  • the torsion spring 7 When the blade 5 is in the retracted position, the torsion spring 7 is in a balanced state. The larger the blade 5 rotates and unfolds, the more severe the torsion spring 7 deforms, and the greater the elastic force generated. When the centrifugal force disappears, the elastic force pushes the blade. 5 Turn to reset.
  • the rotating cover 6 is provided with a limiting block 61 protruding upward, and the outer end of the mounting frame 4 is provided with a locking position 43 which is matched with the limiting block 61 and can limit the rotating cover 6.
  • the blade 5 is expanded to the optimal position with the maximum wind power of the same power, the fan blade 5 is expanded to the maximum angle.
  • the rotating cover 6 rotates with the blade 5 to the maximum angle.
  • the limit block 61 rotates with the rotating cover 6 to the locked position.
  • the clamped position 43 prevents the rotating cover 6 from continuing to rotate, thereby restricting the blade 5 so that the blade 5 cannot continue to expand after being expanded to the maximum angle under the action of centrifugal force, and avoiding excessive expansion of the blade 5 and insufficient wind force.
  • a protective cover 10 that can cover the motor 2 is sleeved on the boom 1.
  • the protective cover 10 can protect the motor 2 to prevent debris and dust from falling onto the motor 2 and the rotating disk 3 and affecting the rotation.
  • a fan lamp includes a boom 1 and a motor 2 fixed at the bottom end of the boom 1.
  • a rotating disk 3 driven by the motor 2 is provided on the motor 2, and a plurality of mounting frames 4 are installed on the rotating disk 3, and the mounting frame 4 can swing up and down in the vertical direction with the connection point with the rotating disk 3 as the axis, and a blade 5 can be rotatably installed on the outer end of each mounting frame 4, and the blade 5 can be rotated on the mounting frame 4 to achieve opening, When stowed, the part between the front edge 54 and the rear edge 54 of the blade 5 is convex upwards.
  • the cross section of the blade 5 is a convex arc shape.
  • the front edge 53 of the blade 5 is a concave arc, and the rear edge 54 is convex.
  • the blade 5 is generally arcuate when viewed from the horizontal plane.
  • the front edge 53 of the blade 5 is located in a higher horizontal plane than the rear edge 54.
  • the blade 5 includes a connecting end and an outer end. When multiple blades 5 are in the stowed position
  • the height of the front edge 53 of the blade 5 is at the same level from the connecting end to the outer end
  • the height of the rear edge 54 of the blade 5 is at the same level from the connecting end to the outer end
  • the outer end of the blade 5 is at the same level as the adjacent other end.
  • a gap is created between the connecting ends of a blade 5, and two adjacent blades 5 are not covered and overlapped, and a lamp 9 is provided at the bottom of the motor 2.

Abstract

一种风扇，包括一吊杆（1）和一固定于吊杆（1）底端的电机（2），电机（2）上设置有一由电机（2）驱动的转动盘（3），转动盘（3）上安装有多个安装架（4），安装架（4）可以以与转动盘（3）的连接处为轴在竖直方向上上下摆动，每个安装架（4）的外端上均可旋转地安装有一叶片（5），叶片（5）与安装架（4）可以整体在竖直方向上摆动。

Description

一种风扇及风扇灯 技术领域
本发明涉及风扇技术领域，特别涉及一种风扇及风扇灯。
背景技术
目前，在建筑物内都安装有中央空调系统、空器调节机、排风扇、吊扇或风扇等，借以加速室内与室外的空气交换、流通。吊扇便是被广泛应用的其中一种。在建筑物当中，吊扇因为安装于天花板上，而具有不占人们活动空间的特点，搭配空调系统、空气调节机使用，冷房效果更是显著。吊扇灯是灯和吊扇的完美结合，既具灯的装饰性，又具风扇的实用性，是目前装修装饰时广泛使用的电器。
现有的风扇灯，扇叶是直接安装在转动部上，吊扇开启工作时，扇叶在离心力的作用下在水平面方向上相对转动部转动而展开，由于各个安装位置的安装紧密度无法完全统一，并且扇叶和连接件等结构在生产制造过程中存在一定误差，导致多个扇叶之间存在细微重量差别，在高速转动时会因此产生较大的振动，带动整个风扇产生明显的晃动，平衡性较差，长时间工作后对安装结构会造成损害，存在安全隐患，扇叶的震动同时会产生较大噪音，使用效果不好。
现有的风扇灯，扇叶一般为可收放结构，扇叶的尾端上翘，在收起时，扇叶相互覆盖重叠，以减少扇叶占用的空间，在一定空间内增大扇叶的面积，在长时间使用后，扇叶受重力和离心力的影响会产生一定形变，导致扇叶之间可能相互卡住，使扇叶无法正常收放，影响正常的使用；并且现有的扇叶一般为倾斜的平板设计，表面平直缺少弧度，这种扇叶在距离天花板太近时风力明显不足，空气流动效果不好，需要占用较大的垂直安装空间，在楼层较低的地方使用较为不便。
因此，如何实现减少扇叶的振动，进而降低风扇灯的晃动，提高风扇灯的平衡性，降低使用过程中的噪声，并优化扇叶的结构，避免扇叶之间卡住影响扇叶的正常收放，提高吹风效果是业内亟待解决的技术问题。
发明内容
本发明的主要目的是提供一种风扇及风扇灯，旨在减少扇叶的振动，进而降低风扇灯的晃动，提高风扇灯的平衡性，降低使用过程中的噪声，并优化扇叶的结构，避免扇叶之间卡住影响扇叶的正常收放，提高吹风效果。
为了达成上述目的，本发明的解决方案是：本发明提出一种风扇，包括一吊杆和一固定于所述吊杆底端的电机，所述电机上设置有一由所述电机驱动的转动盘，所述转动盘上安装有多个安装架，所述安装架可以以与所述转动盘的连接处为轴在竖直方向上上下摆动，每个所述安装架的外端上均可旋转地安装有一叶片，所述叶片可在安装架上转动实现打开、收起，所述叶片前边缘和后边缘之间部分向上凸起，所述叶片的截面为向上凸起的弧形，叶片的前边缘为内凹的弧形，后边缘为外凸的弧形，在水平面上俯视叶片整体呈弓形，所述叶片的前边缘位于比后边缘更高的水平面内，所述叶片包括连接端和外端，当多个所述叶片均位于收起位置，所述叶片前边缘的高度从连接端至外端均处于同一水平高度，所述叶片后边缘的高度从连接端至外端均处于同一水平高度，并且叶片的外端与相邻的另一叶片的连接端之间产生一空隙，相邻的两个所述叶片之间不覆盖重叠。
优选地，所述叶片的连接端上开设有一安装孔，所述安装架的外端上设置一开设有通孔的沉槽，所述沉槽内设置有一可使所述叶片相对所述安装架转动的轴承，所述安装孔内设置有一穿过所述轴承和安装架的螺栓，所述螺栓的底端螺纹连接有一可随叶片转动的转动盖，所述螺栓与所述转动盖配合将所述叶片与所述安装架连接起来。
优选地，所述转动盖内设置有一扭簧，所述扭簧的一端固定在所述安装架上，另一端固定在所述转动盖上，所述叶片打开时转动盖转动使所述扭簧变形产生弹力。
优选地，所述转动盖上设置有一向上凸起的限位块，所述安装架的外端上设置有一与所述限位块相适配可对所述转动盖进行限位的卡位。
优选地，所述吊杆上套设有一可将所述电机遮盖起来的保护盖。
一种风扇灯，包括一吊杆和一固定于所述吊杆底端的电机，所述电机上设置有一由所述电机驱动的转动盘，所述转动盘上安装有多个安装架，所述 安装架可以以与所述转动盘的连接处为轴在竖直方向上上下摆动，每个所述安装架的外端上均可旋转地安装有一叶片，所述叶片可在安装架上转动实现打开、收起，所述叶片前边缘和后边缘之间部分向上凸起，所述叶片的截面为向上凸起的弧形，叶片的前边缘为内凹的弧形，后边缘为外凸的弧形，在水平面上俯视叶片整体呈弓形，所述叶片的前边缘位于比后边缘更高的水平面内，所述叶片包括连接端和外端，当多个所述叶片均位于收起位置，所述叶片前边缘的高度从连接端至外端均处于同一水平高度，所述叶片后边缘的高度从连接端至外端均处于同一水平高度，并且叶片的外端与相邻的另一叶片的连接端之间产生一空隙，相邻的两个所述叶片之间不覆盖重叠，所述电机的底部设置有一灯具。
采用上述方案后，本发明的有益效果是：本发明通过设置可以上下摆动的安装架，将叶片设置在安装架上，当叶片受离心力打开转动时，叶片与安装架可以整体在竖直方向上摆动，调整到最平衡的位置，抵消扇叶因安装、重量的误差产生的振动，进行内部自我调节，从而减轻风扇灯整体的晃动，提高风扇灯的平衡效果，提高安装的稳定性；
对叶片的结构进行调整，叶片的外端(尾端)与连接端(头端)处于同一平面，没有上翘部分，相邻两个叶片之间存在一定距离，不会覆盖重叠，避免长时间使用后叶片变形、叶片安装结构松脱而导致叶片相互卡住以及无法正常收放，确保正常使用；
叶片呈表面向上凸起的弧形，区别于原有的平直的倾斜扇叶，带动空气流动效果更好，可以安装至距天花板更近的位置而不影响风量，保持吹风效果。
附图说明
图1为本发明展开状态的立体图；
图2为本发明收起状态的立体图；
图3为本发明展开状态的俯视图；
图4为本发明展开状态结构的立体图；
图5为本发明的分解图；
图6为本发明收起状态的实施例示意图；
图7为本发明展开状态的实施例示意图；
图8为叶片的俯视图；
图9为图8的截面图。
图中：1、吊杆，2、电机，3、转动盘，4、安装架，41、沉槽，42、轴承，43、卡位，44、轴，45、安装座，5、叶片，51、安装孔，52、加强筋，53、前边缘，54、后边缘，6、转动盖，61、限位块，7、扭簧，8、螺栓，9、灯具，10、保护盖。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参照图1-9，提出本发明的一实施例，一种风扇，包括一吊杆1和一固定于吊杆1底端的电机2，电机2为外转子电机，转子在外，定子在内，吊杆1的底端与电机2的定子固定连接。电机2上设置有一由电机2驱动的转动盘3，转动盘3固定连接在电机2的转子上，随转子转动而转动。
转动盘3上安装有多个安装架4，安装架4可以以与转动盘3的连接处为轴在竖直方向上上下摆动，安装架4上可以设置有多个与安装架4相适配的安装座45，安装架4可以使用铰接等方式安装在安装座45上，使得安装架4绕安装座45的轴44上下摆动。
每个安装架4的外端上均可旋转地安装有一叶片5，叶片5可在安装架4上转动实现打开、收起，叶片5的下表面上设置有一加强筋52(配合图9所示)，提高叶片5的结构强度，风扇工作时，电机2转动带动转动盘3转动，从而带动安装架4和叶片5转动，叶片5在离心力作用下同时相对安装架4转动在水平方向上展开，随转动盘3转动带动空气流动产生风力。在转动过程中，叶片5和安装架4在竖直方向上轻微摆动，进行自我调节，使得多个叶片5配合达成平衡，降低叶片5的震动，从而降低风扇整体的晃动，提高稳定性，运行更加平稳，噪声更低。
如图6和7所示，当叶片5处于收起位置时，叶片5和安装架4处于最 低点，安装架4外端与水平面相互平行，即安装外端为水平状态；当扇叶5打开转动时，安装架4为达到平衡，与叶片5在竖直方向动作，使得安装架4的外端下边缘与水平面形成一夹角α，在低速转动时，夹角α为5°，在中速转动时，夹角α为7°，在高速转动时，夹角α为9°。
如图2所示，在叶片5处于收起位置时，叶片5前边缘53和后边缘54之间部分向上凸起，叶片5的截面为向上凸起的弧形(配合图8所示)，使得叶片5的下表面内凹(形成凹陷)，叶片5的上表面外凸，叶片5的前边缘53为内凹的弧形，后边缘54为外凸的弧形，在水平面上俯视叶片5整体呈弓形，叶片5的前边缘53位于比后边缘54更高的水平面内。叶片5包括连接端和外端，当多个叶片5均位于收起位置，叶片5前边缘53的高度从连接端至外端均处于同一水平高度，叶片5后边缘54的高度从连接端至外端均处于同一水平高度，即叶片5没有上翘部分，连接端和外端处于同一水平高度。叶片5的外端与相邻的另一叶片5的连接端之间产生一空隙，即在水平方向上，两个相邻的叶片5之间具有一定距离，使得相邻的两个叶片5在水平面内不接触，相邻的两个叶片5之间不覆盖重叠，在俯视方向上，相邻的两个叶片5相互独立不接触。
叶片5的连接端上开设有一安装孔51，安装架4的外端上设置一开设有通孔的沉槽41，沉槽41内设置有一可使叶片5相对安装架4转动的轴承42，轴承42设置于叶片5与安装架4之间，使得叶片5可以相对安装架4自由转动，减少磨损，降低噪音。安装孔51内设置有一穿过轴承42和安装架4的螺栓8，螺栓8的底端螺纹连接有一可随叶片5转动的转动盖6，螺栓8与转动盖6配合将叶片与安装架4连接起来。
转动盖6内设置有一扭簧7，扭簧7的一端固定在安装架4上，另一端固定在转动盖6上，叶片5打开时转动盖6转动使扭簧7变形产生弹力。当电机2停止工作时，离心力消失，此时扭簧7复位，从而推动转动盖6转动带动叶片5转动复位，使得叶片5转动至收起位置。
当叶片5处于收起位置时，扭簧7处于平衡状态，叶片5转动展开的幅度越大，扭簧7变形越严重，所产生的弹力也就越大，当离心力消失时，弹力即推动叶片5转动复位。
转动盖6上设置有一向上凸起的限位块61，安装架4的外端上设置有一与 限位块61相适配可对转动盖6进行限位的卡位43。当叶片5展开至相同功率风力最大的最优位置时，扇叶5展开至最大角度，此时转动盖6随叶片5转动至最大角度，此时限位块61随转动盖6转动至与卡位43卡紧的位置，使得转动盖6无法继续转动，从而对叶片5进行限位，使得叶片5在离心力作用下展开至最大角度后无法继续展开，避免叶片5过度展开导致风力不足。
吊杆1上套设有一可将电机2遮盖起来的保护盖10。保护盖10可以对电机2进行保护，避免杂物、灰尘落入电机2、转动盘3上影响转动。
一种风扇灯，包括一吊杆1和一固定于吊杆1底端的电机2，电机2上设置有一由电机2驱动的转动盘3，转动盘3上安装有多个安装架4，安装架4可以以与转动盘3的连接处为轴在竖直方向上上下摆动，每个安装架4的外端上均可旋转地安装有一叶片5，叶片5可在安装架4上转动实现打开、收起，叶片5前边缘54和后边缘54之间部分向上凸起，叶片5的截面为向上凸起的弧形，叶片5的前边缘53为内凹的弧形，后边缘54为外凸的弧形，在水平面上俯视叶片5整体呈弓形，叶片5的前边缘53位于比后边缘54更高的水平面内，叶片5包括连接端和外端，当多个叶片5均位于收起位置，叶片5前边缘53的高度从连接端至外端均处于同一水平高度，叶片5后边缘54的高度从连接端至外端均处于同一水平高度，并且叶片5的外端与相邻的另一叶片5的连接端之间产生一空隙，相邻的两个叶片5之间不覆盖重叠，电机2的底部设置有一灯具9。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (6)

  1. 一种风扇，包括一吊杆和一固定于所述吊杆底端的电机，其特征在于，所述电机上设置有一由所述电机驱动的转动盘，所述转动盘上安装有多个安装架，所述安装架可以以与所述转动盘的连接处为轴在竖直方向上上下摆动，每个所述安装架的外端上均可旋转地安装有一叶片，所述叶片可在安装架上转动实现打开、收起，所述叶片前边缘和后边缘之间部分向上凸起，所述叶片的截面为向上凸起的弧形，叶片的前边缘为内凹的弧形，后边缘为外凸的弧形，在水平面上俯视叶片整体呈弓形，所述叶片的前边缘位于比后边缘更高的水平面内，所述叶片包括连接端和外端，当多个所述叶片均位于收起位置，所述叶片前边缘的高度从连接端至外端均处于同一水平高度，所述叶片后边缘的高度从连接端至外端均处于同一水平高度，并且叶片的外端与相邻的另一叶片的连接端之间产生一空隙，相邻的两个所述叶片之间不覆盖重叠。
  2. 根据权利要求1所述的一种风扇，其特征在于，所述叶片的连接端上开设有一安装孔，所述安装架的外端上设置一开设有通孔的沉槽，所述沉槽内设置有一可使所述叶片相对所述安装架转动的轴承，所述安装孔内设置有一穿过所述轴承和安装架的螺栓，所述螺栓的底端螺纹连接有一可随叶片转动的转动盖，所述螺栓与所述转动盖配合将所述叶片与所述安装架连接起来。
  3. 根据权利要求2所述的一种风扇，其特征在于，所述转动盖内设置有一扭簧，所述扭簧的一端固定在所述安装架上，另一端固定在所述转动盖上，所述叶片打开时转动盖转动使所述扭簧形变产生弹力。
  4. 根据权利要求2所述的一种风扇，其特征在于，所述转动盖上设置有一向上凸起的限位块，所述安装架的外端上设置有一与所述限位块相适配可对所述转动盖进行限位的卡位。
  5. 根据权利要求1所述的一种风扇，其特征在于，所述吊杆上套设有一可将所述电机遮盖起来的保护盖。
  6. 一种风扇灯，包括一吊杆和一固定于所述吊杆底端的电机，其特征在于，所述电机上设置有一由所述电机驱动的转动盘，所述转动盘上安装有多个安装架，所述安装架可以以与所述转动盘的连接处为轴在竖直方向上上下摆动，每个所述安装架的外端上均可旋转地安装有一叶片，所述叶片可在安装架上转动实现打开、收起，所述叶片前边缘和后边缘之间部分向上凸起，所述叶片的截面为向上凸起的弧形，叶片的前边缘为内凹的弧形，后边缘为外凸的弧形，在水平面上俯视叶片整体呈弓形，所述叶片的前边缘位于比后边缘更高的水平面内，所述叶片包括连接端和外端，当多个所述叶片均位于收起位置，所述叶片前边缘的高度从连接端至外端均处于同一水平高度，所述叶片后边缘的高度从连接端至外端均处于同一水平高度，并且叶片的外端与相邻的另一叶片的连接端之间产生一空隙，相邻的两个所述叶片之间不覆盖重叠，所述电机的底部设置有一灯具。
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